Technical proficiency in cytopathology: assessment through external quality assurance.

PubMed

Cummings, M C; Greaves, J; Shukor, R A; Perkins, G; Ross, J

2017-04-01

To assess both the feasibility and value of conducting an external quality assurance programme concerning technical aspects of cytopathology laboratory practice, and the interest by laboratories in enrolling in such a programme. Six technical surveys, comprising staining exercises and questionnaires relating to laboratory practice, were distributed over a 4-year period to the approximately 220 laboratories enrolled in the RCPAQAP Cytopathology slide survey modules. Staining exercises using the Papanicolaou and Romanowsky techniques, the preparation of urine and body fluid specimens and immunocytochemistry on the cell block material were assessed. Accompanying relevant questionnaires were included, and one survey comprised a questionnaire alone concerning the collection of urinary tract and body fluid samples. Provision of an external cytopathology technical module was feasible for the RCPAQAP and participation rates (maximum of 87% per survey; average 68% for stained slides and 66% for questionnaires) were commendable, particularly considering these were optional undertakings with some exercises not applicable to all laboratories. The great majority of submitted slides were scored as satisfactory, and there was an especially high standard for the immunocytochemical staining exercise with 95% considered satisfactory, including 50.6% with a perfect score. Reasons for suboptimal scores were provided for potential quality improvement for interested laboratories. A wealth of information relating to laboratory practice was provided to the RCPAQAP which was collated and summarised for laboratory use. The provision of a technical module in cytopathology is both a feasible and valuable undertaking of interest to laboratories which should become standard practice for cytopathology external quality assurance providers. © 2016 John Wiley & Sons Ltd.

Development of new port in Minahasa Utara: A-pre feasibility study

NASA Astrophysics Data System (ADS)

Hamzah, Suharman; Abdurahman, Asad; Saputra, Reza; Aprianti, Evi

2017-11-01

In order to support Indonesian Government priority sector to build toll maritime in conjunction to connect "nusantara" as an archipelago country, and also to develop the frontier area of Indonesia, the existence of a port should get more in attention as the gate of Indonesia. A port has significant role in changing of transport mode and at the end as catalyst of economic growth. An important thing from pre-feasibility studies is the priority factor will clearly shown wheather it is good or fair. As a supporting to service passenger moving, container, general cargo and also bulk, a port is necessary to have an excellent design and planning. A pre-feasibility study is required to obtain a scientific basis based on value of interest and the necessity of the region. A pre-feasibility study in this paper aims to identify potential support of the region and giving priority location of development of new port in Minahasa Utara regarding to spatial, government issues, transportation aspect, regional economics, environmental aspect and technical aspect consideration. Experimental Method used are qualitative and quantitative, going through to the data obtained and supported by interview on the spot as well as questionnaire surveys. Result of this paper showing that there are 5 locations suitable with the requirements. Based on the level of priority, high (Kema, Likupang), moderate (Linuhu, Kahuku) and low (Gangga 1).

Florida Tech CubeSat Experiment Feasibility Study

NASA Technical Reports Server (NTRS)

Arrasmith, William W.; Bucaille, Stephane; Rusovici, Razvan; Platt, Don; Guidry, Todd; Bandar, Deepika; Coots, Everett; Davidson, Russ

2010-01-01

CubeSats are a relatively new type of satellite. Smaller than long-term (5+ year life expectancy) satellites, these pico-satellites are comparatively cheap, small (10x10x10 cm), and are very versatile. Universities world-wide are using CubeSats to conduct a variety of experiments in space without the need for a large experimental platform. Today CubeSats are considered to be one of the most effective ways to send a small payload into space and has attracted the attention of many educational and non-profit organizations. As this pico-satellite model continues to gain penetration into the satellite build and launch industry, it is expected that more governmental, educational, and commercial interests will emerge. As an example, more of the space-related items of high interest to the National Science Foundation may be tackled with a CubeSat platform resulting in lower life cycle costs than traditional satellite options. NASA LSP, in cooperation with the Florida Institute of Technology, has initiated a feasibility study to investigate the technical aspects of measuring and transferring vibration, acceleration, temperature, and video data from a CubeSat to NASA Hanger AE on Cape Canaveral Air Force Station (CCAFS) a.k.a. Kennedy Space Center (KSC). This report provides a technical feasibility analysis to determine whether-or-not a specific set of NASA/LSP requirements can be accomplished. Our approach has been to provide a "notional" component layout to determine the feasibility of the NASA/LSP stakeholder requirements. The notional layout is used to consider component level technical issues such as size, weight, & power (SWaP), bandwidth, and other critical technical parameters. Even though the notional components may satisfy the stated requirements and thereby demonstrate feasibility, the notional layout is NOT considered a design since no component optimization and design trade-off analysis has taken place. This activity should be accomplished in an appropriate design phase that is outside of the scope of this effort.

Feasibility of multi-sector policy measures that create activity-friendly environments for children: results of a Delphi study.

PubMed

Aarts, Marie-Jeanne; Schuit, Albertine J; van de Goor, Ien Am; van Oers, Hans Am

2011-12-15

Although multi-sector policy is a promising strategy to create environments that stimulate physical activity among children, little is known about the feasibility of such a multi-sector policy approach. The aims of this study were: to identify a set of tangible (multi-sector) policy measures at the local level that address environmental characteristics related to physical activity among children; and to assess the feasibility of these measures, as perceived by local policy makers. In four Dutch municipalities, a Delphi study was conducted among local policy makers of different policy sectors (public health, sports, youth and education, spatial planning/public space, traffic and transportation, and safety). In the first Delphi round, respondents generated a list of possible policy measures addressing three environmental correlates of physical activity among children (social cohesion, accessibility of facilities, and traffic safety). In the second Delphi round, policy makers weighted different feasibility aspects (political feasibility, cultural/community acceptability, technical feasibility, cost feasibility, and legal feasibility) and assessed the feasibility of the policy measures derived from the first round. The third Delphi round was aimed at reaching consensus by feedback of group results. Finally, one overall feasibility score was calculated for each policy measure. Cultural/community acceptability, political feasibility, and cost feasibility were considered most important feasibility aspects. The Delphi studies yielded 16 feasible policy measures aimed at physical and social environmental correlates of physical activity among children. Less drastic policy measures were considered more feasible, whereas environmental policy measures were considered less feasible. This study showed that the Delphi technique can be a useful tool in reaching consensus about feasible multi-sector policy measures. The study yielded several feasible policy measures aimed at physical and social environmental correlates of physical activity among children and can assist local policy makers in designing multi-sector policies aimed at an activity-friendly environment for children.

Bio-plastic (poly-hydroxy-alkanoate) production from municipal sewage sludge in the Netherlands: a technology push or a demand driven process?

PubMed

Bluemink, E D; van Nieuwenhuijzen, A F; Wypkema, E; Uijterlinde, C A

Valorisation of components from municipal 'waste' water and sewage sludge gets more and more attention in order to come to a circular economy by developing an efficient 'waste' to value concept. On behalf of the transition team 'Grondstoffenfabriek' ('Resource factory') a preliminary research was performed for all the Dutch water boards to assess the technical and economical feasibility of poly-hydroxy-alkanoate (PHA)-production from sewage sludge, a valuable product to produce bio-plastics. This study reveals that the production of bio-plastics from sewage sludge is feasible based on technical aspects, but not yet economically interesting, even though the selling price is relatively close to the actual PHA market price. (Selling price is in this particular case the indicative cost effective selling price. The cost effective selling price covers only the total production costs of the product.) Future process optimization (maximizing the volatile fatty acids production, PHA storage capacity, etc.) and market developments are needed and will result in cost reductions of the various sub-processes. PHA-production from sewage sludge at this stage is just a technology; every further research is needed to incorporate the backward integration approach, taking into account the market demand including associated product quality aspects.

Near-Earth Asteroid Retrieval Mission (ARM) Study

NASA Technical Reports Server (NTRS)

Brophy, John R.; Muirhead, Brian

2013-01-01

The Asteroid Redirect Mission (ARM) concept brings together the capabilities of the science, technology, and the human exploration communities on a grand challenge combining robotic and human space exploration beyond low Earth orbit. This paper addresses the key aspects of this concept and the options studied to assess its technical feasibility. Included are evaluations of the expected number of potential targets, their expected discovery rate, the necessity to adequately characterize candidate mission targets, the process to capture a non-cooperative asteroid in deep space, and the power and propulsion technology required for transportation back to the Earth-Moon system. Viable options for spacecraft and mission designs are developed. Orbits for storing the retrieved asteroid that are stable for more than a hundred years, yet allow for human exploration and commercial utilization of a redirected asteroid, are identified. The study concludes that the key aspects of finding, capturing and redirecting an entire small, near-Earth asteroid to the Earth-Moon system by the first half of the next decade are technically feasible. The study was conducted from January 2013 through March 2013 by the Jet Propulsion Laboratory (JPL) in collaboration with Glenn Research Center (GRC), Johnson Space Center (JSC), Langley Research Center (LaRC), and Marshall Space Flight Center (MSFC).

Transition to Office-based Obstetric and Gynecologic Procedures: Safety, Technical, and Financial Considerations.

PubMed

Peacock, Lisa M; Thomassee, May E; Williams, Valerie L; Young, Amy E

2015-06-01

Office-based surgery is increasingly desired by patients and providers due to ease of access, overall efficiency, reimbursement, and satisfaction. The adoption of office-based surgery requires careful consideration of safety, efficacy, cost, and feasibility within a providers practice. This article reviews the currently available data regarding patient and provider satisfaction as well as practical considerations of staffing, equipment, and supplies. To aid the practitioner, issues of office-based anesthesia and safety with references to currently available national guidelines and protocols are provided. Included is a brief review of billing, coding, and reimbursement. Technical procedural aspects with information and recommendations are summarized.

Development, initial reliability and validity testing of an observational tool for assessing technical skills of operating room nurses.

PubMed

Sevdalis, Nick; Undre, Shabnam; Henry, Janet; Sydney, Elaine; Koutantji, Mary; Darzi, Ara; Vincent, Charles A

2009-09-01

The recent emergence of the Systems Approach to the safety and quality of surgical care has triggered individual and team skills training modules for surgeons and anaesthetists and relevant observational assessment tools have been developed. To develop an observational tool that captures operating room (OR) nurses' technical skill and can be used for assessment and training. The Imperial College Assessment of Technical Skills for Nurses (ICATS-N) assesses (i) gowning and gloving, (ii) setting up instrumentation, (iii) draping, and (iv) maintaining sterility. Three to five observable behaviours have been identified for each skill and are rated on 1-6 scales. Feasibility and aspects of reliability and validity were assessed in 20 simulation-based crisis management training modules for trainee nurses and doctors, carried out in a Simulated Operating Room. The tool was feasible to use in the context of simulation-based training. Satisfactory reliability (Cronbach alpha) was obtained across trainers' and trainees' scores (analysed jointly and separately). Moreover, trainer nurse's ratings of the four skills correlated positively, thus indicating adequate content validity. Trainer's and trainees' ratings did not correlate. Assessment of OR nurses' technical skill is becoming a training priority. The present evidence suggests that the ICATS-N could be considered for use as an assessment/training tool for junior OR nurses.

A persuasive toothbrush to enhance oral hygiene adherence.

PubMed

Walji, Muhammad F; Coker, Ololade; Valenza, John A; Henson, Harold; Warren-Morris, Donna; Zhong, Lin

2008-11-06

In this research we propose that a real-time wireless monitoring and reminder system can assist patients in maintaining optimal oral health. We provide a conceptual framework that incorporates both the behavioral and technical aspects of the proposed system. Further we present preliminary results of a feasibility experiment of modifying an inexpensive electric toothbrush by attaching an accelerometer and determining the ability to track motion and time by wirelessly transmitting data via Bluetooth technology.

Technical Feasibility Aspects of the Geothermal Resource Reporting Methodology (GRRM)

DOE Office of Scientific and Technical Information (OSTI.GOV)

Badgett, Alex; Young, Katherine R; Dobson, Patrick F.

This paper reviews the technical assessment of the Geothermal Research Reporting Methodology (GRRM, http://en.openei.org/wiki/GRRM) being developed for reporting geothermal resources and project progress. The goal of the methodology is to provide the U.S. Department of Energy's Geothermal Technologies Office (GTO) with a consistent and comprehensible means of evaluating the impacts of its funding programs. The GRRM is designed to provide uniform assessment criteria for geothermal resource grades and developmental phases of geothermal resource exploration and development. This resource grade system provides information on twelve attributes of geothermal resource locations (e.g., temperature, permeability, land access) to indicate potential for geothermal development.more » The GTO plans to use these Protocols to help quantitatively identify the greatest barriers to geothermal development, develop measureable program goals that will have the greatest impact to geothermal deployment, objectively evaluate proposals based (in part) on a project's ability to contribute to program goals, monitor project progress, and report on GTO portfolio performance. The GRRM assesses three areas of geothermal potential: geological, socio-economic, and technical. Previous work and publications have discussed the work done on the geological aspects of this methodology (Young et al. 2015c); this paper details the development of the technical assessment of the GRRM. Technical development attributes considered include: reservoir management, drilling, logistics, and power conversion.« less

Technical Feasibility Assessment of Lunar Base Mission Scenarios

NASA Astrophysics Data System (ADS)

Magelssen, Trygve ``Spike''; Sadeh, Eligar

2005-02-01

Investigation of the literature pertaining to lunar base (LB) missions and the technologies required for LB development has revealed an information gap that hinders technical feasibility assessment. This information gap is the absence of technical readiness levels (TRL) (Mankins, 1995) and information pertaining to the criticality of the critical enabling technologies (CETs) that enable mission success. TRL is a means of identifying technical readiness stages of a technology. Criticality is defined as the level of influence the CET has on the mission scenario. The hypothesis of this research study is that technical feasibility is a function of technical readiness and technical readiness is a function of criticality. A newly developed research analysis method is used to identify the technical feasibility of LB mission scenarios. A Delphi is used to ascertain technical readiness levels and CET criticality-to-mission. The research analysis method is applied to the Delphi results to determine the technical feasibility of the LB mission scenarios that include: observatory, science research, lunar settlement, space exploration gateway, space resource utilization, and space tourism. The CETs identified encompasses four major system level technologies of: transportation, life support, structures, and power systems. Results of the technical feasibility assessment show the observatory and science research LB mission scenarios to be more technical ready out of all the scenarios, but all mission scenarios are in very close proximity to each other in regard to criticality and TRL and no one mission scenario stands out as being absolutely more technically ready than any of the other scenarios. What is significant and of value are the Delphi results concerning CET criticality-to-mission and the TRL values evidenced in the Tables that can be used by anyone assessing the technical feasibility of LB missions.

Feasible and technical aspects of transcatheter arterial chemoembolization for non-resectable hepatocellular carcinoma using a 3.5-French catheter system.

PubMed

Yagyu, Yukinobu; Tsurusaki, Masakatsu; Kamiyama, Kazutoshi; Kitagaki, Hajime; Murakami, Takamichi

2014-12-01

To evaluate the feasibility and technical aspects of transcatheter arterial chemoembolization (TACE) for non-resectable hepatocellular carcinoma (HCC) using a 3.5-French (Fr) catheter system. This study included 328 consecutive cases of HCC among 232 patients who underwent TACE procedures using both a 3.5-Fr catheter system and a microcatheter fitted to a 3.5-Fr system between April 2009 and November 2011. We assessed the ability to reach the catheter into the proper hepatic artery (PHA), main hepatic branch, segmental artery, and subsegmental or sub-subsegmental artery. The feasibility was rated according to the following factors: (1) the number of arteries that could be used to reach the target artery/total number of procedures using the 3.5-Fr system, (2) the rate of successful completion of the procedures without changing over to the 4-Fr system and (3) the reasons for changing over the 4-Fr system. TACE of the PHA (27 sessions), RHA/LHA (103 sessions), segmental (31 sessions), or subsegmental/sub-subsegmental arteries (162 sessions) was performed. The rate of successfully reaching the target artery using the 3.5-Fr system was 93% (306/328 sessions). We were unable to reach the target artery in 22 sessions, including 11/8/3 procedures targeting the sub-subsegmental artery, subsegmental artery, and RHA/LHA, respectively. We changed over to the 4-Fr system in six sessions; therefore, the rate of successful completion of the procedures without changing over to the 4-Fr system was 98% (322/328 sessions). TACE of the target artery can be successfully performed using the 3.5-Fr system in most patients with HCC.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

The feasibility of constructing a 25-50 MWe geothermal power plant using low salinity hydrothermal fluid as the energy source was assessed. Here, the geotechnical aspects of geothermal power generation and their relationship to environmental impacts in the Imperial Valley of California were investigated. Geology, geophysics, hydrogeology, seismicity and subsidence are discussed in terms of the availability of data, state-of-the-art analytical techniques, historical and technical background and interpretation of current data. Estimates of the impact of these geotechnical factors on the environment in the Imperial Valley, if geothermal development proceeds, are discussed.

Laparoscopic resection of transverse colon cancer at splenic flexure: technical aspects and results.

PubMed

Okuda, Junji; Yamamoto, Masashi; Tanaka, Keitaro; Masubuchi, Shinsuke; Uchiyama, Kazuhisa

2016-03-01

Laparoscopic resection of transverse colon cancer at splenic flexure is technical demanding and its efficacy remains controversial. The aim of this study was to investigate its technical aspects such as pitfalls and overcoming them, and to demonstrate the short-term and oncologic long-term outcomes. To overcome the difficulty in laparoscopic resection of transverse colon cancer at splenic flexure, we recognized the following technical tips as essential. First of all, we have to precisely identify major vessels variations feeding tumor. Secondary, anatomical dissection of mesocolon through medial approach is indispensible. Third, safe takedown of splenic flexure to fully mobilization of left hemicolon is mandatory. This cohort study analyzed 95 patients with stage II (43) and III (52) underwent resection of transverse colon cancer at splenic flexure. 61 laparoscopic surgeries (LAC) and 34 conventional open surgeries (OC) from December 1996 to December 2009 were evaluated. Short-term and oncologic long-term outcomes were recorded. Operative time was longer in LAC. However, blood loss was less, recovery of bowel function and hospital stay were shorter in LAC. There was no conversion in LAC and no significant difference in the postoperative complications. Regarding oncologic long-term outcomes, there were no significant differences between OC and LAC. Laparoscopic resection of transverse colon cancer at splenic flexure resulted in acceptable short-term and oncologic long-term outcomes. Once technical tips acquired, laparoscopic resection of transverse colon cancer at splenic flexure could be feasible as minimally invasive surgery.

Formation evaluation in liquid-dominated geothermal reservoirs

DOE Office of Scientific and Technical Information (OSTI.GOV)

Ershaghi, I.; Dougherty, E.E.; Handy, L.L.

1981-04-01

Studies relative to some formation evaluation aspects of geothermal reservoirs are reported. The particular reservoirs considered were the liquid dominated type with a lithology of the sedimentary nature. Specific problems of interest included the resistivity behavior of brines and rocks at elevated temperatures and studies on the feasibility of using the well log resistivity data to obtain estimates of reservoir permeability. Several papers summarizing the results of these studies were presented at various technical meetings for rapid dissemination of the results to potential users. These papers together with a summary of data most recently generated are included. A brief reviewmore » of the research findings precedes the technical papers. Separate abstracts were prepared for four papers. Five papers were abstracted previously for EDB.« less

Terraforming the Moon: a Viable Step in the Colonization of the Solar System?

NASA Astrophysics Data System (ADS)

Renn, H. W.

2002-01-01

One potential option for the colonization of other celestial bodies is Terraforming. The latter involves, as a first step, the creation of a breathable, artificial atmosphere. While terraforming other planets, especially Mars, has been under discussion for several decades, applying the same concept to Earth's closest neighbor, namely the Moon, plays virtually no role in existing plans for space colonization. This paper investigates the technical and economical feasibility of supplying the Moon with an artificial atmosphere. Based on existing concepts for life support systems, essential requirements for an artificial Lunar atmosphere are defined. Various alternatives for the atmospheric composition are investigated and the parameters of a preferred `reference atmosphere' are described in detail. In order to assess the latter's habitability, particularly with respect to wind speeds and temperature cycles, the Moon's wind system and temperature field are analyzed by using a customized climate simulation model. Aspects of technical feasibility are evaluated and major obstacles are identified. Finally, various assessment criteria with particular respect to economical and ethical considerations are discussed and preliminary conclusions are presented.

Highly immersive virtual reality laparoscopy simulation: development and future aspects.

PubMed

Huber, Tobias; Wunderling, Tom; Paschold, Markus; Lang, Hauke; Kneist, Werner; Hansen, Christian

2018-02-01

Virtual reality (VR) applications with head-mounted displays (HMDs) have had an impact on information and multimedia technologies. The current work aimed to describe the process of developing a highly immersive VR simulation for laparoscopic surgery. We combined a VR laparoscopy simulator (LapSim) and a VR-HMD to create a user-friendly VR simulation scenario. Continuous clinical feedback was an essential aspect of the development process. We created an artificial VR (AVR) scenario by integrating the simulator video output with VR game components of figures and equipment in an operating room. We also created a highly immersive VR surrounding (IVR) by integrating the simulator video output with a [Formula: see text] video of a standard laparoscopy scenario in the department's operating room. Clinical feedback led to optimization of the visualization, synchronization, and resolution of the virtual operating rooms (in both the IVR and the AVR). Preliminary testing results revealed that individuals experienced a high degree of exhilaration and presence, with rare events of motion sickness. The technical performance showed no significant difference compared to that achieved with the standard LapSim. Our results provided a proof of concept for the technical feasibility of an custom highly immersive VR-HMD setup. Future technical research is needed to improve the visualization, immersion, and capability of interacting within the virtual scenario.

Land mobile satellite communication system. Volume 3: Annexes to volume 2: Particular aspects of market analyses

NASA Astrophysics Data System (ADS)

Carnebianca, C.; Pavesi, B.; Tuozzi, A.; Capone, R.

1986-06-01

The socioeconomic desirability in terms of market demand, technical economic feasibility, and price-performance for a Land Mobile Communication system ground based and/or satellite aided, able to satisfy the request of the traffic demand, foreseeable in the 1995 to 2005 time frame, for the Western European countries was assessed. The criterion of economic value of the mobile system is considered as the driving element. Data on traffic; socioeconomic factors; economic factors; and radiotelephony, paging, and dispatch subscription and value for money trends are presented.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Yang, C.

Almost every computer architect dreams of achieving high system performance with low implementation costs. A multigauge machine can reconfigure its data-path width, provide parallelism, achieve better resource utilization, and sometimes can trade computational precision for increased speed. A simple experimental method is used here to capture the main characteristics of multigauging. The measurements indicate evidence of near-optimal speedups. Adapting these ideas in designing parallel processors incurs low costs and provides flexibility. Several operational aspects of designing a multigauge machine are discussed as well. Thus, this research reports the technical, economical, and operational feasibility studies of multigauging.

Pre-feasibility study for construction of a commercial coal hydrogenation plant

NASA Astrophysics Data System (ADS)

Hahn, W.; Wilhelm, H.; Kleinhueckelkotten, H.; Schmedeshagen, B.

1982-11-01

The technical problems, a suitable site and the unsatisfactory economics hinder the realization of a commercial coal liquefaction plant in Germany were identified. It is found that a plant for hydrogenation of coal and heavy oil according to the updated bergius-Pier process can be built. The improvement of acceptable reactor loading and increase of product yield was considered. The infrastructure aspects of a site for the plant which covers 300 hectars as well as eventually existing atmospheric pollution conditions in the environment are also considered.

Development of Hydrogen Education Programs for Government Officials

DOE Office of Scientific and Technical Information (OSTI.GOV)

Baxter, Shannon; Keller, Russ

1. Subcontractor/Technical Subject Matter Expert (Tasks 1-3) 2. Technical lead for LFG cleanup and hydrogen production systems Support for Feasibility Study 3. Technical Lead for Feasibility Study Coordination of site preparation activities for all project equipment 4. Host site

Training on women and renewable sources of energy.

PubMed

Duenas Loza, M

1997-01-01

The training package developed by the International Research and Training Institute for the Advancement of Women in 1989 focuses on women and energy. The Institute conducts training activities using collected, analyzed and disseminated information and documentation, as well as identification of critical research and training activities and promotion of integrated issues on women and energy policies, programs and projects. Previous training experiences identified the inefficient quality of training offered to community members, technical staff and technical agencies, with more emphasis on the technical skills instead on the managerial, socio-organizational and environmental aspects. The creation of a multimedia modular training material provides an association between the issues of women, New and Renewable Sources of Energy (NRSE) and environmental aspects necessary for the strengthening of national institutions, promotion of socioeconomical and technically feasible renewable technologies, and awareness building, information and communication enhancement. The package covers 1) overview of the UN activities on NRSE; 2) Women's Position in the Energy Sector; 3) NRSE Project and Program design and implementation; 4) relevant NRSE characteristics and technology systems; 5) education and training activities in NRSE projects. This training package is designed to contribute a new approach in the organization and management of NRSE through integration of women's needs and increase awareness and capabilities of planners, officials and experts. In addition, several training seminars were conducted during 1989-91, which focused on the relationship between women and renewable energy sources through the application of participatory and self-reliant techniques.

Feasibility study of solid surface subreflector production techniques

NASA Technical Reports Server (NTRS)

1982-01-01

The principal effort was to study technical feasibility and cost aspects of the production technique of spin forming a subreflector reflective surface to a desired surface of revolution, back the surface with fiberglass to stabilize it sufficiently so that it may be machined to the target surface tolerance of .008 inches Root Mean Square (RMS) with a goal of .003 inches RMS. To verify this production technique, analyses was performed to define the production procedure. A price estimate for a 150 inch diameter subreflector for a 34 meter cassegrain antenna. During this feasibility study, numerous production processes were evaluated theoretically as production approaches for single surface, non-welded subreflectors. The first successful was the principal process of spin forming the reflective surface, backing with fiberglass and machining to a final contour. The second successful process was spin forming or bump forming a thicker reflective surface, with an integral (welded in) structure as a backing and machining the mounting pads and reflector to a final configuration.

47 CFR 25.148 - Licensing provisions for the Direct Broadcast Satellite Service.

Code of Federal Regulations, 2010 CFR

2010-10-01

.... who do not provide service to Alaska and Hawaii, must provide technical analyses to the Commission demonstrating that such service is not feasible as a technical matter, or that while technically feasible such... § 25.215 (Technical) and § 25.601 (EEO), and in paragraph (f) of this section. Each winner also will be...

Toward the Standardization of Bioreactors for Space Research

NASA Astrophysics Data System (ADS)

Garcia, Michel; Nebuloni, Stefano; Dainesi, Paolo; Gass, Samuel

Growing interest in long-term human space missions and exploration as well as future plans for extra-terrestrial human settlements, places increasing importance on understanding biological and chemical processes in space at cellular and molecular level. RUAG Space has been involved in the development of bioreactors for life-science experiments in space for the past 20 years. Throughout these developments, RUAG has acted as the link between scientists and the space industry, translating high-level scientific requirements into technical requirements, verifying their feasibility within the space context, and developing state-of-the-art experiment hardware which can interface with dedicated micro-gravity platform. Although this approach has brought forth promising developments in the field, it is associated to very long development phases as well as correspondingly high costs. Each new scientific experiment is often associated to an entirely new hardware development. This is, in large, due to the limited information available on the possibilities and constraints imposed by the particular context of space. Therefore, a considerable amount of time and development costs are invested in order to accommodate stringent scientific requirements and/or specific experiment design in space hardware. This does not only have an impact on funding opportunities for micro-gravity experiments in space, it also curbs the pace of scientific discoveries and limits the number of research opportunities. Therefore, in the following, we present an overview of already established possibilities for cellular research in space, with special emphasis on hardware developed by RUAG Space. This is intended to provide scientists with key technical information on already existing bioreactors, subsystems, and components, which may be used as a basis when designing scientific studies. By considering this information from the onset of the establishment of scientific requirements, technical solutions can be implemented which do not require major new and lengthy developments. RUAG believes this is pivotal in facilitating access to life-science research in space and thereby increasing scientific output in this research area. The overview includes a description of technical features such as feasible cultivation volumes in highly biocompatible and transparent culture chambers, cultivation method options (batch vs. continuous), associated feed rates, and chemical fixation methods. Feasible regulation and sensing possibilities (i.e. O2, CO2, temperature, pH, cell concentration), based on technologies already used in laboratory application, are also discussed. Important aspects related to flow homogeneity, mass/gas transfer and mixing methods in micro-gravity are also presented. Lastly, the environmental performance of existing bioreactors is also shown and a particular emphasis is placed on safety design aspects for space hardware.

Victoria Healey | NREL

Science.gov Websites

Technical Report (2015) Feasibility Study of Economics and Performance of Solar Photovoltaics at the Report (2014) Feasibility Study of Economics and Performance of Solar Photovoltaics at the Price Landfill Site in Pleasantville, New Jersey, NREL Technical Report (2013) Feasibility Study of Economics and

Athena Mission Status

NASA Astrophysics Data System (ADS)

Lumb, D.

2016-07-01

Athena has been selected by ESA for its second large mission opportunity of the Cosmic Visions programme, to address the theme of the Hot and Energetic Universe. Following the submission of a proposal from the community, the technical and programmatic aspects of the mission design were reviewed in ESA's Concurrent Design Facility. The proposed concept was deemed to betechnically feasible, but with potential constraints from cost and schedule. Two parallel industry study contracts have been conducted to explore these conclusions more thoroughly, with the key aim of providing consolidated inputs to a Mission Consolidation Review that was conducted in April-May 2016. This MCR has recommended a baseline design, which allows the agency to solicit proposals for a community provided payload. Key design aspects arising from the studies are described, and the new reference design is summarised.

Basic targeting strategies for rendezvous and flyby missions to the near-Earth asteroids

NASA Astrophysics Data System (ADS)

Perozzi, Ettore; Rossi, Alessandro; Valsecchi, Giovanni B.

2001-01-01

Missions to asteroids and comets are becoming increasingly feasible both from a technical and a financial point of view. In particular, those directed towards the Near-Earth Asteroids have proven suitable for a low-cost approach, thus attracting the major space agencies as well as private companies. The choice of a suitable target involves both scientific relevance and mission design considerations, being often a difficult task to accomplish due to the limited energy budget at disposal. The aim of this paper is to provide an approach to basic trajectory design which allows to account for both aspects of the problem, taking into account scientific and technical information. A global characterization of the Near-Earth Asteroids population carried out on the basis of their dynamics, physical properties and flight dynamics considerations, allows to identify a group of candidates which satisfy both, the scientific and engineering requirements. The feasibility of rendezvous and flyby missions towards them is then discussed and the possibility of repeated encounters with the same object is investigated, as an intermediate scenario. Within this framework, the capability of present and near future launch and propulsion systems for interplanetary missions is also addressed.

Feasibility of Developing a Protocol for Automated Protist Analysis

DTIC Science & Technology

2010-03-01

Acquisition Directorate Research & Development Center Report No: CG-D-02-ll Feasibility of Developing a Protocol for Automated Protist Analysis...Technical Information Service, Springfield, VA 22161. March 2010 Homeland Security Feasibility of Developing a Protocol for Automated Protist ...March 21)10 Feasibility of Developing a Protocol for Automated Protist Analysis 00 00 o CM Technical Report Documentation Page 1. Report No CG-D

Technical guidance for the development of a solid state image sensor for human low vision image warping

NASA Technical Reports Server (NTRS)

Vanderspiegel, Jan

1994-01-01

This report surveys different technologies and approaches to realize sensors for image warping. The goal is to study the feasibility, technical aspects, and limitations of making an electronic camera with special geometries which implements certain transformations for image warping. This work was inspired by the research done by Dr. Juday at NASA Johnson Space Center on image warping. The study has looked into different solid-state technologies to fabricate image sensors. It is found that among the available technologies, CMOS is preferred over CCD technology. CMOS provides more flexibility to design different functions into the sensor, is more widely available, and is a lower cost solution. By using an architecture with row and column decoders one has the added flexibility of addressing the pixels at random, or read out only part of the image.

Design and Operation of the World's First Long Distance Bauxite Slurry Pipeline

NASA Astrophysics Data System (ADS)

Gandhi, Ramesh; Weston, Mike; Talavera, Maru; Brittes, Geraldo Pereira; Barbosa, Eder

Mineracão Bauxita Paragominas (MBP) is the first long distance slurry pipeline transporting bauxite slurry. Bauxite had developed a reputation for being difficult to hydraulically transport using long distance pipelines. This myth has now been proven wrong. The 245-km- long, 13.5 MTPY capacity MBP pipeline was designed and commissioned by PSI for CVRD. The pipeline is located in the State of Para, Brazil. The Miltonia bauxite mine is in a remote location with no other efficient means of transport. The bauxite slurry is delivered to Alunorte Alumina refinery located near Barcarena. This first of its kind pipeline required significant development work in order to assure technical and economic feasibility. This paper describes the technical aspects of design of the pipeline. It also summarizes the operating experience gained during the first year of operation.

High Efficiency Space Power Systems Project Advanced Space-Rated Batteries

NASA Technical Reports Server (NTRS)

Reid, Concha M.

2011-01-01

Case Western Reserve University (CWRU) has an agreement with China National Offshore Oil Corporation New Energy Investment Company, Ltd. (CNOOC), under the United States-China EcoPartnerships Framework, to create a bi-national entity seeking to develop technically feasible and economically viable solutions to energy and environmental issues. Advanced batteries have been identified as one of the initial areas targeted for collaborations. CWRU invited NASA Glenn Research Center (GRC) personnel from the Electrochemistry Branch to CWRU to discuss various aspects of advanced battery development as they might apply to this partnership. Topics discussed included: the process for the selection of a battery chemistry; the establishment of an integrated development program; project management/technical interactions; new technology developments; and synergies between batteries for automotive and space operations. Additional collaborations between CWRU and NASA GRC's Electrochemistry Branch were also discussed.

Employment of telemedicine in emergency medicine. Clinical requirement analysis, system development and first test results.

PubMed

Czaplik, M; Bergrath, S; Rossaint, R; Thelen, S; Brodziak, T; Valentin, B; Hirsch, F; Beckers, S K; Brokmann, J C

2014-01-01

Demographic change, rising co-morbidity and an increasing number of emergencies are the main challenges that emergency medical services (EMS) in several countries worldwide are facing. In order to improve quality in EMS, highly trained personnel and well-equipped ambulances are essential. However several studies have shown a deficiency in qualified EMS physicians. Telemedicine emerges as a complementary system in EMS that may provide expertise and improve quality of medical treatment on the scene. Hence our aim is to develop and test a specific teleconsultation system. During the development process several use cases were defined and technically specified by medical experts and engineers in the areas of: system administration, start-up of EMS assistance systems, audio communication, data transfer, routine tele-EMS physician activities and research capabilities. Upon completion, technical field tests were performed under realistic conditions to test system properties such as robustness, feasibility and usability, providing end-to-end measurements. Six ambulances were equipped with telemedical facilities based on the results of the requirement analysis and 55 scenarios were tested under realistic conditions in one month. The results indicate that the developed system performed well in terms of usability and robustness. The major challenges were, as expected, mobile communication and data network availability. Third generation networks were only available in 76.4% of the cases. Although 3G (third generation), such as Universal Mobile Telecommunications System (UMTS), provides beneficial conditions for higher bandwidth, system performance for most features was also acceptable under adequate 2G (second generation) test conditions. An innovative concept for the use of telemedicine for medical consultations in EMS was developed. Organisational and technical aspects were considered and practical requirements specified. Since technical feasibility was demonstrated in these technical field tests, the next step would be to prove medical usefulness and technical robustness under real conditions in a clinical trial.

7 CFR 1735.17 - Facilities financed.

Code of Federal Regulations, 2010 CFR

2010-01-01

... more economically or technically feasible. Economic and technical feasibility will be determined using total long range economic costs and risk analysis. (d) Generally, RUS will not make a loan to another...

Feasibility Study for a Computerized Serials Control System in the Defense Communications Agency Technical and Management Information Center.

DTIC Science & Technology

1984-06-20

AD-A162 ±88 FEASIBILITY STUDY FOR A COMPUTERIZED SERIALS CONTROL 1/1 SYSTEM IN THE DEFENS (U) DEFENSE COMMUNICATIONS AGENCY WASHINGTON DC TECHNICAL...NATIONAL BUREAU OF STANDARDS- 1963-A 0FEASIBILITY STUDY FOR A COMPUTERIZED SERIALS CONTROL SYSTEM IN THE DEFENSE COMMUNICATIONS 0AGENCY TECHNICAL AND...ABSTRACT 21. ABSTRACT SECURITY CLASSIFICATION UNCLASSIFIED/UNLIMITED R1 SAME AS RPT. 0 DTIC USERS 0 UNCLASSIFIED 22&. NAME OF RESPONSIBLE INDIVIDUAL 22b

7 CFR 4280.21 - Eligible REDG Ultimate Recipients and Projects.

Code of Federal Regulations, 2011 CFR

2011-01-01

... facilitate medical or educational services or job training; or (6) Project feasibility studies and Technical Assistance. A qualified Independent Provider must perform feasibility studies or Technical Assistance. (b...

Can the IROMEC robot support play in children with severe physical disabilities? A pilot study.

PubMed

van den Heuvel, Renée J F; Lexis, Monique A S; de Witte, Luc P

2017-03-01

The aim of this study was to explore the application of the IROMEC (Interactive social RObotic Mediators as Companions) robot to support play for children with severe physical disabilities in rehabilitation and special education. Within a 2-month pilot study, physically disabled children with a developmental age between 2 and 8 years participated in sessions with the robot. A combination of qualitative and quantitative outcome measures was used to collect data on aspects of feasibility, usability, barriers for the child as well as the therapist and an indication of the effects on playfulness and the achievement of therapeutic and educational goals. A total of 11 children participated in this study (four boys, seven girls). Individually Prioritized Problem Assessment scores indicated a positive effect of the IROMEC robot on the achievement of goals for the children. Professionals did observe meaningful application possibilities, but the lacking adaptability, expandability and technical stability of the robot platform make application in daily care practice impossible. The application of a robot like IROMEC for children with severe physical disabilities seems to be positive and worthwhile, but usability and feasibility aspects are crucial for success.

Planetary/DOD entry technology flight experiments. Volume 2: Planetary entry flight experiments

NASA Technical Reports Server (NTRS)

Christensen, H. E.; Krieger, R. J.; Mcneilly, W. R.; Vetter, H. C.

1976-01-01

The technical feasibility of launching a high speed, earth entry vehicle from the space shuttle to advance technology for the exploration of the outer planets' atmospheres was established. Disciplines of thermodynamics, orbital mechanics, aerodynamics propulsion, structures, design, electronics and system integration focused on the goal of producing outer planet environments on a probe shaped vehicle during an earth entry. Major aspects of analysis and vehicle design studied include: planetary environments, earth entry environment capability, mission maneuvers, capabilities of shuttle upper stages, a comparison of earth entry planetary environments, experiment design and vehicle design.

Recycling wastewater after hemodialysis: an environmental analysis for alternative water sources in arid regions.

PubMed

Tarrass, Faissal; Benjelloun, Meryem; Benjelloun, Omar

2008-07-01

Water is a vital aspect of hemodialysis. During the procedure, large volumes of water are used to prepare dialysate and clean and reprocess machines. This report evaluates the technical and economic feasibility of recycling hemodialysis wastewater for irrigation uses, such as watering gardens and landscape plantings. Water characteristics, possible recycling methods, and production costs of treated water are discussed in terms of the quality of the generated wastewater. A cost-benefit analysis is also performed through comparison of intended cost with that of seawater desalination, which is widely used in irrigation.

Restoring tactile and erogenous penile sensation in low-spinal-lesion patients: procedural and technical aspects following 43 TOMAX nerve transfer procedures.

PubMed

Overgoor, Max L E; de Jong, Tom P V M; Kon, Moshe

2014-08-01

The "TOMAX" (TO MAX-imize sensation, sexuality, and quality of life) procedure restores genital sensation in men with low spinal lesions, improving sexual health, as shown previously. It connects the dorsal nerve of the penis to the intact ipsilateral ilioinguinal nerve, unilaterally or bilaterally. This study reports on the technical aspects based on 43 TOMAX nerve transfers. In 40 patients with no penile but intact groin sensation, 43 nerve transfers were performed. Data on patient selection, surgical history, anatomy of the ilioinguinal nerve and dorsal nerve of the penis, unilateral or bilateral surgery, surgical technique, complications, and patient information were collected prospectively. Regardless of origin, all patients with no penile but good groin sensation are eligible for the procedure, provided the ilioinguinal nerve is not damaged because of former inguinal surgery or absent because of anatomical variations. Selection of a unilateral or bilateral procedure depends on the presence or absence of reflex erections and bulbocavernosus reflex. Preliminary experience with the first three bilateral cases shows that it is technically feasible, with encouraging results. The surgical technique has evolved (described in detail, including video) to enhance outcome and reduce complications. Patients are better informed, resulting in realistic expectations. This article synthesizes the procedural and technical experience of 43 TOMAX nerve transfers. Anyone skilled in peripheral nerve surgery and microsurgery can adopt this concept and further develop it. The TOMAX procedure can then be used to restore erogenous penile sensation and improve the quality of sexual health in patients with absent penile but good groin sensation.

Mise au point d'un bouchon d'oreille "intelligent"

NASA Astrophysics Data System (ADS)

Voix, Jeremie

Many workers are exposed to noise levels high enough to put them at risk of losing their hearing. However, noise reduction at the source, when technically feasible, is often difficult to implement for economical reasons. Therefore, individual hearing protection remains the most widespread solution in practice. Unfortunately, the hearing protectors currently available on the market are seldom worn continuously as they should be (because they are not very comfortable or must be removed to communicate) and do not match the worker's need for protection (because their actual attenuation is generally unknown). This doctorate thesis work, carried out in close collaboration with SONOMAX HEARING HEALTHCARE I NC., had the general objective to develop a smart earplug that would solve the problems associated with current hearing protection devices thereby effectively preventing noise induced hearing loss in the industrial environment. The issues associated to this development have been formulated in details under the Health and Safety aspect (non-continuous wearing of the hearing protector and un-adapted protection), technical aspects (development of an earplug that is comfortable both from the physical and sound perception points of view and whose performances are measurable) and scientific aspects (modeling of physical systems, signal processing, instrumentation and measurement techniques). The technical developments have resulted in a custom earplug that is instantly fitted to the wearer's ear by silicone injection. Its acoustical performance can be measured using a microphone probe while the attenuation can be adapted to the user's need by the insertion through the earplug of passive acoustical filters. The scientific developments have resulted in the prediction of the attenuation of the earplug from the Noise Reduction measurement and in the prediction of the filtered earplug attenuation.

Cherokee Wind Energy Development - Feasibility and Pre-Construction Studies

DOE Office of Scientific and Technical Information (OSTI.GOV)

McMillan, Andy

Cherokee Nation Businesses (CNB) received a grant from the US Department of Energy to explore feasibility and pursue development of a wind power generation facility on Cherokee land in north-central Oklahoma. This project followed several years of initial study exploring the possibility of commercial-scale wind power generation on primarily agricultural land owned by the Cherokee Nation. This project produced detailed analysis of the legal, financial and market viability of such generation facilities, and encompassed a full technical evaluation of the engineering, environmental, and geotechnical aspects of installing this capacity. During the course of this project, information gleaned from this explorationmore » changed CNB’s thinking about the best course of action for Cherokee participation in the development, eventually moving away from an equity-owner model and towards utilization of the land asset as a resource while mitigating Cherokee financial and operational risk.« less

Unilateral robotic hybrid mini-maze: a novel experimental approach.

PubMed

Moslemi, Mohammad; Rawashdeh, Badi; Meyer, Mark; Nguyen, Duy; Poston, Robert; Gharagozloo, Farid

2016-03-01

A complete Cox maze IV procedure is difficult to accomplish using current endoscopic and minimally invasive techniques. These techniques are hampered by inability to adequately dissect the posterior structures of the heart and place all necessary lesions. We present a novel approach, using robotic technology, that achieves placement of all the lesions of the complete maze procedure. In three cadaveric human models, the technical feasibility of using robotic instruments through the right chest to dissect the posterior structures of the heart and place all Cox maze lesions was performed. The entire posterior aspect of the heart was dissected in the cadaveric model facilitating successful placement of all Cox maze IV lesions with robotic assistance through minimally invasive incisions. The robotic Cox maze IV procedure through the novel right thoracic approach is feasible. This obviates the need for sternotomy and avoids the associated morbidity of the conventional Cox-maze procedure. Copyright © 2015 John Wiley & Sons, Ltd.

Technical aspects of renal denervation in end-stage renal disease patients with challenging anatomy.

PubMed

Spinelli, Alessio; Da Ros, Valerio; Morosetti, Daniele; Onofrio, Silvia D; Rovella, Valentina; Di Daniele, Nicola; Simonetti, Giovanni

2014-01-01

We describe our preliminary experience with percutaneous renal denervation in end-stage renal disease patients with resistant hypertension and challenging anatomy, in terms of the feasibility, safety, and efficacy of this procedure. Four patients with end-stage renal disease patients with resistant hypertension (mean hemodialysis time, 2.3 years) who had been taking at least four antihypertensive medications underwent percutaneous renal denervation. Renal artery eligibility included the absence of prior renal artery interventions, vessel stenosis <70%, or extended calcifications (more than 30% of the vessel circumference). No cut off values of vessel diameter were used. All patients were successfully treated with no intra- or postprocedural complications, and all showed 24-hour ambulatory blood pressure reduction at the 12-month follow-up. Percutaneous renal denervation is a feasible approach for end-stage renal disease patients with resistant hypertension with encouraging short-term preliminary results in terms of procedural efficacy and safety.

Feasibility and applications of the spin-echo modulation option for a small angle neutron scattering instrument at the European Spallation Source

NASA Astrophysics Data System (ADS)

Kusmin, A.; Bouwman, W. G.; van Well, A. A.; Pappas, C.

2017-06-01

We describe theoretical and practical aspects of spin-echo modulated small-angle neutron scattering (SEMSANS) as well as the potential combination with SANS. Based on the preliminary technical designs of SKADI (a SANS instrument proposed for the European Spallation Source) and a SEMSANS add-on, we assess the practicability, feasibility and scientific merit of a combined SANS and SEMSANS setup by calculating tentative SANS and SEMSANS results for soft matter, geology and advanced material samples that have been previously studied by scattering methods. We conclude that lengths from 1 nm up to 0.01 mm can be observed simultaneously in a single measurement. Thus, the combination of SANS and SEMSANS instrument is suited for the simultaneous observation of a wide range of length scales, e.g. for time-resolved studies of kinetic processes in complex multiscale systems.

Low frequency VLBI in space using GAS-Can satellites: Report on the May 1987 JPL Workshop

NASA Technical Reports Server (NTRS)

Mahoney, M. J.; Jones, D. L.; Kuiper, T. B. H.; Preston, R. A.

1987-01-01

Summarized are the results of a workshop held at JPL on May 28 and 29, 1987, to study the feasibility of using small, very inexpensive spacecraft for a low-frequency radio interferometer array. Many technical aspects of a mission to produce high angular resolution images of the entire sky at frequencies from 2 to 20 MHz were discussed. The workshop conclusion was that such a mission was scientifically valuable and technically practical. A useful array could be based on six or more satellites no larger than those launched from Get-Away-Special canisters. The cost of each satellite could be $1-2M, and the mass less than 90 kg. Many details require further study, but as this report shows, there is good reason to proceed. No fundamental problems have been discovered involving the use of untraditional, very inexpensive spacecraft for this type of mission.

BUILDING MATERIALS RECLAMATION PROGRAM

DOE Office of Scientific and Technical Information (OSTI.GOV)

David C. Weggel; Shen-En Chen; Helene Hilger

2010-08-31

This report describes work conducted on the Building Materials Reclamation Program for the period of September 2008 to August 2010. The goals of the project included selecting materials from the local construction and demolition (C&D) waste stream and developing economically viable reprocessing, reuse or recycling schemes to divert them from landfill storage. Educational resources as well as conceptual designs and engineering feasibility demonstrations were provided for various aspects of the work. The project was divided into two distinct phases: Research and Engineering Feasibility and Dissemination. In the Research Phase, a literature review was initiated and data collection commenced, an advisorymore » panel was organized, and research was conducted to evaluate high volume C&D materials for nontraditional use; five materials were selected for more detailed investigations. In the Engineering Feasibility and Dissemination Phase, a conceptual study for a regional (Mecklenburg and surrounding counties) collection and sorting facility was performed, an engineering feasibility project to demonstrate the viability of recycling or reuse schemes was created, the literature review was extended and completed, and pedagogical materials were developed. Over the two-year duration of the project, all of the tasks and subtasks outlined in the original project proposal have been completed. The Final Progress Report, which briefly describes actual project accomplishments versus the tasks/subtasks of the original project proposal, is included in Appendix A of this report. This report describes the scientific/technical aspects (hypotheses, research/testing, and findings) of six subprojects that investigated five common C&D materials. Table 1 summarizes the six subprojects, including the C&D material studied and the graduate student and the faculty advisor on each subproject.« less

Building Multi-Discipline, Multi-Format Digital Libraries Using Clusters and Buckets. Degree rewarded by Old Dominion Univ. on Aug. 1997

NASA Technical Reports Server (NTRS)

Nelson, Michael L.

1997-01-01

Our objective was to study the feasibility of extending the Dienst protocol to enable a multi-discipline, multi-format digital library. We implemented two new technologies: cluster functionality and publishing buckets. We have designed a possible implementation of clusters and buckets, and have prototyped some aspects of the resultant digital library. Currently, digital libraries are segregated by the disciplines they serve (computer science, aeronautics, etc.), and by the format of their holdings (reports, software, datasets, etc.). NCSTRL+ is a multi-discipline, multi-format digital library (DL) prototype created to explore the feasibility of the design and implementation issues involved with created a unified, canonical scientific and technical information (STI) DL. NCSTRL+ is based on the Networked Computer Science Technical Report Library (NCSTRL), a World Wide Web (WWW) accessible DL that provides access to over 80 university departments and laboratories. We have extended the Dienst protocol (version 4.1.8), the protocol underlying NCSTRL, to provide the ability to cluster independent collections into a logically centralized DL based upon subject category classification, type of organization, and genre of material. The concept of buckets provides a mechanism for publishing and managing logically linked entities with multiple data formats.

Status of Advanced Stitched Unitized Composite Aircraft Structures

NASA Technical Reports Server (NTRS)

Jegley, Dawn C.; Velicki, Alex

2013-01-01

NASA has created the Environmentally Responsible Aviation (ERA) Project to explore and document the feasibility, benefits and technical risk of advanced vehicle configurations and enabling technologies that will reduce the impact of aviation on the environment. A critical aspect of this pursuit is the development of a lighter, more robust airframe that will enable the introduction of unconventional aircraft configurations that have higher lift-to-drag ratios, reduced drag, and lower community noise levels. The primary structural concept being developed under the ERA project in the Airframe Technology element is the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS) concept. This paper describes how researchers at NASA and The Boeing Company are working together to develop fundamental PRSEUS technologies that could someday be implemented on a transport size aircraft with high aspect ratio wings or unconventional shapes such as a hybrid wing body airplane design.

Energy from wood waste - A case study

NASA Technical Reports Server (NTRS)

Scola, R.; Daughtrey, K.

1980-01-01

A joint study has been conducted by NASA and Army installations collocated in a dense forest in southwestern Mississippi in order to determine the technical and economic feasibility of using wood waste as a renewable energy source. The study has shown that, with proper forest management, the timber on government lands could eventually support the total energy requirements of 832 billion Btu/yr. Analysis of the current conversion technologies indicates that the direct combustion spreader stoker approach is the best demonstrated technology for this specific application. The economics of the individual powerplants reveal them as attractive alternatives to fossil fueled plants. Environmental aspects are also discussed.

Feasibility of Retrofitting Lifts on Commuter and Light Rail Vehicles

DOT National Transportation Integrated Search

1980-09-01

The objectives of this study were to determine if lift retrofit applications to rail vehicles are technically feasible, and if so, the extent to which existing bus lift technology can be utilized. This report examines some of the technical issues ass...

7 CFR 4280.21 - Eligible REDG Ultimate Recipients and Projects.

Code of Federal Regulations, 2010 CFR

2010-01-01

... eligible entities to provide medical training and related professional health care skills to rural health... facilitate medical or educational services or job training; or (6) Project feasibility studies and Technical Assistance. A qualified Independent Provider must perform feasibility studies or Technical Assistance. (b...

Performance and technical feasibility comparison of reusable launch systems: A synthesis of the ESA winged launcher studies

NASA Astrophysics Data System (ADS)

Berry, W.; Grallert, H.

1996-02-01

The paper presents a synthesis of the performance and technical feasibility assessment of 7 reusable launcher types, comprising 13 different vehicles, studied by European Industry for ESA in the ESA Winged Launcher Study in the period January 1988 to May 1994. The vehicles comprised single-stage-to-orbit (SSTO) and two-stage-to-orbit (TSTO) vehicles, propelled by either air-breathing/rocket propulsion or entirely by rocket propulsion. The results showed that an SSTO vehicle of the HOTOL-type, propelled by subsonic combustion air-breathing/rocket engines could barely deliver the specified payload mass and was aerodynamically unstable; that a TSTO vehicle of the Saenger type, employing subsonic combustion airbreathing propulsion in its first stage and rocket propulsion in its second stage, could readily deliver the specified payload mass and was found to be technically feasible and versatile; that an SSTO vehicle of the NASP type, propelled by supersonic combustion airbreathing/rocket propulsion was able to deliver a reduced payload mass, was very complex and required very advanced technologies; that an air-launched rocket propelled vehicle of the Interim HOTOL type, although technically feasible, could deliver only a reduced payload mass, being constrained by the lifting capability of the carrier airplane; that three different, entirely rocket-propelled vehicles could deliver the specified payload mass, were technically feasible but required relatively advanced technologies.

Technical and Economic Feasibility Study of At-Grade Concrete Slab Track for Urban Rail Transit Systems

DOT National Transportation Integrated Search

1981-08-01

The report presents work conducted to evaluate the technical and economic feasibility of using concrete slab track systems for at-grade transit track. The functions of a rail transit track system are to guide railway vehicles and provide a safe and a...

Multimedia article: Transvaginal laparoscopic cholecystectomy: laparoscopically assisted.

PubMed

Bessler, Marc; Stevens, Peter D; Milone, Luca; Hogle, Nancy J; Durak, Evren; Fowler, Dennis

2008-07-01

Natural orifice transluminal endoscopic surgery (NOTES) is considered the new frontier for minimally invasive surgery. NOTES procedures such as peritoneoscopy, splenectomy, and cholecystectomy in animal models have been described. The aim of our experiment was to determine the feasibility and technical aspects of a new endoluminal surgical procedure. After approval from Columbia's IACUC, a transvaginal laparoscopically assisted endoscopic cholecystectomy was performed on four 30 kg Yorkshire pigs. The first step was to insert a 1.5 cm endoscope into the vagina under direct laparoscopic vision. Then the gallbladder was reached and, with the help of a laparoscopic grasper to hold up the gallbladder, the operation was performed. At the end of the procedure the gallbladder was snared out through the vagina attached to the endoscope. There were no intraoperative complications such as bleeding, common bile duct or endo-abdominal organ damage. Total operative time ranged between 110 and 155 min. Based on our experience in the porcine model, we believe that a transvaginal endoscopic cholecystectomy is feasible in humans.

Biomedical signal acquisition, processing and transmission using smartphone

NASA Astrophysics Data System (ADS)

Roncagliolo, Pablo; Arredondo, Luis; González, Agustín

2007-11-01

This article describes technical aspects involved in the programming of a system of acquisition, processing and transmission of biomedical signals by using mobile devices. This task is aligned with the permanent development of new technologies for the diagnosis and sickness treatment, based on the feasibility of measuring continuously different variables as electrocardiographic signals, blood pressure, oxygen concentration, pulse or simply temperature. The contribution of this technology is settled on its portability and low cost, which allows its massive use. Specifically this work analyzes the feasibility of acquisition and the processing of signals from a standard smartphone. Work results allow to state that nowadays these equipments have enough processing capacity to execute signals acquisition systems. These systems along with external servers make it possible to imagine a near future where the possibility of making continuous measures of biomedical variables will not be restricted only to hospitals but will also begin to be more frequently used in the daily life and at home.

A Computerized Information Retrieval System for the Technical Assistance Center Clearinghouse: A Feasibility Study.

ERIC Educational Resources Information Center

Buckley, Joseph J.

This report first analyzes the need for a Technical Assistance Center (TAC) Clearinghouse, which would provide a range of services including question answering for state and local education agencies, workshop preparation assistance, and literature surveys. Addressing the question of feasibility of a computerized information retrieval system for…

Sub-millimetre-wave and far infrared ESA missions with a focus on antenna technologies

NASA Astrophysics Data System (ADS)

de Maagt, Peter; Polegre, Arturo; Crone, Gerry

2017-11-01

The are of (sub)millimetre wave and far-infrared antenna technology is a very dynamic sector in electromagnetics. Several future ESA missions have been planned and their requirements are pushing the limits of existing technologies. Feasibility studies have provided baseline concepts, which have helped to grasp the main features of these instruments and to identify their critical aspects. A number of scientific and technical activities have then followed, dedicated to specific topics. The paper discusses (sub)millimetre wave and far-infrared Earth observation and astronomical instruments. Furthermore, generic technology work carried out in the frame of ESA contracts, applicable to this frequency range, is reported on.

Need for, and financial feasibility of, satellite-aided land mobile communications

NASA Technical Reports Server (NTRS)

Castruccio, P. A.; Marantz, C. S.; Freibaum, J.

1982-01-01

Questions regarding the role of a mobile-satellite system in augmenting the terrestrial communications system are considered, and a market assessment study is discussed. Aspects of an investment analysis are examined, taking into account a three phase financial study of four postulated land Mobile Satellite Service (LMSS) systems, project profitability evaluation methods, risk analysis methods, financial projections, potential investor acceptance standards, and a risk analysis. It is concluded that a satellite augmented terrestrial mobile service appears to be economically and technically superior to a service depending exclusively on terrestrial systems. The interest in the Mobile Satellite Service is found to be worldwide, and the ground equipment market is potentially large.

Myocardial contrast echocardiography in mice: technical and physiological aspects.

PubMed

Verkaik, Melissa; van Poelgeest, Erik M; Kwekkeboom, Rick F J; Ter Wee, Piet M; van den Brom, Charissa E; Vervloet, Marc G; Eringa, Etto C

2018-03-01

Myocardial contrast echocardiography (MCE) offers the opportunity to study myocardial perfusion defects in mice in detail. The value of MCE compared with single-photon emission computed tomography, positron emission tomography, and computed tomography consists of high spatial resolution, the possibility of quantification of blood volume, and relatively low costs. Nevertheless, a number of technical and physiological aspects should be considered to ensure reproducibility among research groups. The aim of this overview is to describe technical aspects of MCE and the physiological parameters that influence myocardial perfusion data obtained with this technique. First, technical aspects of MCE discussed in this technical review are logarithmic compression of ultrasound data by ultrasound systems, saturation of the contrast signal, and acquisition of images during different phases of the cardiac cycle. Second, physiological aspects of myocardial perfusion that are affected by the experimental design are discussed, including the anesthesia regimen, systemic cardiovascular effects of vasoactive agents used, and fluctuations in body temperature that alter myocardial perfusion. When these technical and physiological aspects of MCE are taken into account and adequately standardized, MCE is an easily accessible technique for mice that can be used to study the control of myocardial perfusion by a wide range of factors.

Reverse transcription-polymerase chain reaction molecular testing of cytology specimens: Pre-analytic and analytic factors.

PubMed

Bridge, Julia A

2017-01-01

The introduction of molecular testing into cytopathology laboratory practice has expanded the types of samples considered feasible for identifying genetic alterations that play an essential role in cancer diagnosis and treatment. Reverse transcription-polymerase chain reaction (RT-PCR), a sensitive and specific technical approach for amplifying a defined segment of RNA after it has been reverse-transcribed into its DNA complement, is commonly used in clinical practice for the identification of recurrent or tumor-specific fusion gene events. Real-time RT-PCR (quantitative RT-PCR), a technical variation, also permits the quantitation of products generated during each cycle of the polymerase chain reaction process. This review addresses qualitative and quantitative pre-analytic and analytic considerations of RT-PCR as they relate to various cytologic specimens. An understanding of these aspects of genetic testing is central to attaining optimal results in the face of the challenges that cytology specimens may present. Cancer Cytopathol 2017;125:11-19. © 2016 American Cancer Society. © 2016 American Cancer Society.

Technical and Economic Aspects of Designing an Efficient Room Air-Conditioner Program in India

DOE Office of Scientific and Technical Information (OSTI.GOV)

Abhyankar, Nikit; Shah, Nihar; Phadke, Amol

Several studies have projected a massive increase in the demand for air conditioners (ACs) over the next two decades in India. By 2030, room ACs could add 140 GW to the peak load, equivalent to over 30% of the total projected peak load. Therefore, there is significant interest among policymakers, regulators, and utilities in managing room AC demand by enhancing energy efficiency. Building on the historical success of the Indian Bureau of Energy Efficiency’s star-labeling program, Energy Efficiency Services Limited recently announced a program to accelerate the sale of efficient room ACs using bulk procurement, similar to their successful UJALAmore » light-emitting diode (LED) bulk procurement program. This report discusses some of the key considerations in designing a bulk procurement or financial incentive program for enhancing room AC efficiency in India. We draw upon our previous research to demonstrate the overall technical potential and price impact of room AC efficiency improvement and its technical feasibility in India. We also discuss the importance of using low global warming potential (GWP) refrigerants and smart AC equipment that is demand response (DR) ready.« less

Technical Feasibility of a Mobile Context-Aware (Social) Learning Schedule Framework

ERIC Educational Resources Information Center

Yau, Jane Y. K.; Joy, Mike

2013-01-01

The purpose of this paper is to show the technical feasibility of implementing their mobile context-aware learning schedule (mCALS) framework as a software application on a mobile device using current technologies, prior to its actual implementation. This process draws a set of compatible mobile and context-aware technologies at present and can be…

New woody and ambery notes from cedarwood and turpentine oil.

PubMed

Panten, Johannes; Bertram, Heinz-Jürgen; Surburg, Horst

2004-12-01

The development of a new product in the chemical industry is still driven by needs like technical properties, price/performance ratio, biodegradability, or product safety. However, in terms of improving more and more on ecological criteria, summarized under such catchphrases as sustainable development or green chemistry, another important aspect is to use renewable resources as starting materials. This is not significantly new in fragrance chemistry, and there are a lot of raw materials in the perfume oils that are derived from molecules of renewable resources. Two commonly used materials are: longifolene (from turpentine oil) and cedrene (from cedarwood oil). These compounds are very suitable for the synthesis of woody and ambery notes, and even though it seemed that all possibilities were exhausted, it is actually still feasible to discover new molecules with excellent olfactory properties such as Ambrocenide (50a), which is available in three steps from alpha-cedrene. Some of these molecules will be treated in this review, both with respect to synthesis as well as structural and sensory aspects.

Technical aspects of the Space Telescope Imaging Spectrograph Repair (STIS-R)

NASA Astrophysics Data System (ADS)

Rinehart, S. A.; Domber, J.; Faulkner, T.; Gull, T.; Kimble, R.; Klappenberger, M.; Leckrone, D.; Niedner, M.; Proffitt, C.; Smith, H.; Woodgate, B.

2008-07-01

In August 2004, the Hubble Space Telescope (HST) Space Telescope Imaging Spectrograph (STIS) ceased operation due to a failure of the 5V mechanism power converter in the Side 2 Low Voltage Power Supply (LVPS2). The failure precluded movement of any STIS mechanism and, because of the earlier (2001) loss of the Side 1 electronics chain, left the instrument shuttered and in safe mode after 7.5 years of science operations. A team was assembled to analyze the fault and to determine if STIS repair (STIS-R) was feasible. The team conclusively pinpointed the Side 2 failure to the 5V mechanism converter, and began studying EVA techniques for opening STIS during Servicing Mission 4 (SM4) to replace the failed LVPS2 board. The restoration of STIS functionality via surgical repair by astronauts has by now reached a mature and final design state, and will, along with a similar repair procedure for the Advanced Camera for Surveys (ACS), represent a first for Hubble servicing. STIS-R will restore full scientific functionality of the spectrograph on Side 2, while Side 1 will remain inoperative. Because of the high degree of complementarity between STIS and the new Cosmic Origins Spectrograph (COS, to be installed during SM4)), successful repair of the older spectrograph is an important scientific objective. In this presentation, we focus on the technical aspects associated with STIS-R.

Integrating Nuclear Energy to Oilfield Operations – Two Case Studies

DOE Office of Scientific and Technical Information (OSTI.GOV)

Eric P. Robertson; Lee O. Nelson; Michael G. McKellar

2011-11-01

Fossil fuel resources that require large energy inputs for extraction, such as the Canadian oil sands and the Green River oil shale resource in the western USA, could benefit from the use of nuclear power instead of power generated by natural gas combustion. This paper discusses the technical and economic aspects of integrating nuclear energy with oil sands operations and the development of oil shale resources. A high temperature gas reactor (HTGR) that produces heat in the form of high pressure steam (no electricity production) was selected as the nuclear power source for both fossil fuel resources. Both cases weremore » based on 50,000 bbl/day output. The oil sands case was a steam-assisted, gravity-drainage (SAGD) operation located in the Canadian oil sands belt. The oil shale development was an in-situ oil shale retorting operation located in western Colorado, USA. The technical feasibility of the integrating nuclear power was assessed. The economic feasibility of each case was evaluated using a discounted cash flow, rate of return analysis. Integrating an HTGR to both the SAGD oil sands operation and the oil shale development was found to be technically feasible for both cases. In the oil sands case, integrating an HTGR eliminated natural gas combustion and associated CO2 emissions, although there were still some emissions associated with imported electrical power. In the in situ oil shale case, integrating an HTGR reduced CO2 emissions by 88% and increased natural gas production by 100%. Economic viabilities of both nuclear integrated cases were poorer than the non-nuclear-integrated cases when CO2 emissions were not taxed. However, taxing the CO2 emissions had a significant effect on the economics of the non-nuclear base cases, bringing them in line with the economics of the nuclear-integrated cases. As we move toward limiting CO2 emissions, integrating non-CO2-emitting energy sources to the development of energy-intense fossil fuel resources is becoming increasingly important. This paper attempts to reduce the barriers that have traditionally separated fossil fuel development and application of nuclear power and to promote serious discussion of ideas about hybrid energy systems.« less

Ultrasound-Guided Percutaneous Tenotomy of Biceps Tendon: Technical Feasibility on Cadavers.

PubMed

Sconfienza, Luca Maria; Mauri, Giovanni; Messina, Carmelo; Aliprandi, Alberto; Secchi, Francesco; Sardanelli, Francesco; Randelli, Pietro Simone

2016-10-01

We tested the technical feasibility of ultrasound-guided percutaneous tenotomy of the long head of the biceps tendon (LHBT) in cadavers. Both shoulders of two fresh cadavers were scanned anteriorly to evaluate the extra-articular portion of the LHBT. Under ultrasound monitoring, a scalpel was advanced obliquely up to touch the superficial medial side of the LHBT, cutting it until the tendon was not visible anymore. Ultrasound evaluation was repeated after the procedure, and anatomic dissection was performed. The procedure was 100% feasible: four cuts were made to completely sever the tendon; the duration was less than 1 min. Skin incision measured 5 mm in two cases and 6 mm in two cases. Anatomic dissection confirmed complete tendon cut in all cases with proximal and distal tendon stumps very close to each other. Ultrasound-guided percutaneous LHBT tenotomy was 100% technically feasible in cadavers with a quick procedure and minimal cutaneous incision. Copyright © 2016 World Federation for Ultrasound in Medicine & Biology. Published by Elsevier Inc. All rights reserved.

Can treatment and disposal costs be reduced through metal recovery?

USGS Publications Warehouse

Smith, Kathleen S.; Figueroa, Linda; Plumlee, Geoffrey S.

2015-01-01

This paper describes a framework to conduct a “metal-recovery feasibility assessment” for mining influenced water (MIW) and associated treatment sludge. There are multiple considerations in such a determination, including the geologic/geochemical feasibility, market feasibility, technical feasibility, economic feasibility, and administrative feasibility. Each of these considerations needs to be evaluated to determine the practicality of metal recovery from a particular MIW.

Evaluating the technical feasibility of aflatoxin risk reduction strategies in Africa.

PubMed

Wu, Felicia; Khlangwiset, Pornsri

2010-05-01

Public health interventions must be readily accepted by their target populations to have any meaningful impact and must have financial and infrastructural support to be feasible in the parts of the world where they are most needed. At the same time, these interventions must be assessed for potential unintended consequences, either to the environment or to human health. In this paper, we evaluate the technical feasibility of interventions to control aflatoxin risk, to be potentially deployed in parts of Africa where aflatoxin exposure poses a significant public health concern. We have applied a conceptual framework for feasibility to four interventions, one associated with each of four different stages of aflatoxin risk: biocontrol (pre-harvest), a post-harvest intervention package (post-harvest), NovaSil clay (dietary), and hepatitis B vaccination (clinical). For each intervention, we have assessed the following four components of technical feasibility: (1) characteristics of the basic intervention, (2) characteristics of delivery, (3) requirements on government capacity, and (4) usage characteristics. We propose ways in which feasibility of each intervention is currently high or low from the perspective of adoption in Africa, how public education is crucial for each of these interventions to succeed, and how to align economic incentives to make the interventions more suitable for less developed countries.

Evaluating the technical feasibility of aflatoxin risk reduction strategies in Africa

PubMed Central

Wu, Felicia; Khlangwiset, Pornsri

2010-01-01

Public health interventions must be readily accepted by their target populations to have any meaningful impact, and must have financial and infrastructural support to be feasible in the parts of the world where they are most needed. At the same time, these interventions must be assessed for potential unintended consequences, either to the environment or to human health. In this paper, we evaluate the technical feasibility of interventions to control aflatoxin risk, to be potentially deployed in parts of Africa where aflatoxin exposure poses a significant public health concern. We have applied a conceptual framework for feasibility to four interventions, one associated with each of four different stages of aflatoxin risk: biocontrol (pre-harvest), a post-harvest intervention package (post-harvest), NovaSil clay (dietary), and hepatitis B vaccination (clinical). For each intervention, we have assessed the following four components of technical feasibility: 1) characteristics of the basic intervention, 2) characteristics of delivery, 3) requirements on government capacity, and 4) usage characteristics. We propose ways in which feasibility of each intervention is currently high or low from the perspective of adoption in Africa, how public education is crucial for each of these interventions to succeed, and how to align economic incentives to make the interventions more suitable for less developed countries. PMID:20455160

[Socio-economic aspects of epidemiology of helicobateriosis].

PubMed

Fedichkina, T P; Solenova, L G; Zykova, I E; German, S V; Modestova, A V; Kislitsyn, V A; Rakhmanin, Yu A; Bobrovnitsky, I P

There are considered special social and economic aspects of the epidemiology of Helicobacter pylori. These aspects acquired the particular importance for the last time due to the fact that the provision of the people with pure water has been becoming the focus of the attention of geopolitical and socio-economic interests in a number of countries. The availability ofpure drinking water serves a marker of the socio-economic state of the territory and the population living there. In Russia where different climatic conditions are deposited by considerable regional differences in the conditions of communal services caused both by various level of the socio-economic development of the territory, the supplementation with pure drinking water serves as the social determinant of the ecological conditions of the population’s life. This particularly has impact on the unfeasible technical state of the water distribution systems, microorganism ecology of which can substantially affect public health. The performed by authors a specialized screening ofpresented at the official web site of the joint-stock company «Mosvodokanal» current data concerning the quality of drinking water consumed by 2500 Moscovites, tested for the Helicobacter pylori infection revealed no deviations from the sanitary standards in the water received by the consumers. Along with that, the comparison of the map documents of the distribution of the Helicobacter pylori infection in Moscow with the distribution of citizens’ complaints of the decline of the quality of tap water has revealed a territorial fastening of the high values of the population infection rate of n^ylori and the urban sites with the greatest number of complaints. In the microbial ecology of water-distribution systems there are tightly aligned problems of their epidemiological safety, technical state and economic damage caused by corrosion as a result of microbiotic activity. In contrast to acute bacterial and viral infections which are deemed of the greatest importance when assessing the sanitary condition of water sources and water-distribution systems, the consequences of infection with H. pylori may not be manifestedfor a long time but some years later they may be manifested as serious chronic diseases (from gastritis to adenocarcinoma of the stomach and a wide range of extraintestinal pathologies), which causes great social and economic losses. Thus, the socio-economic aspect of the epidemiology of helicobacteriosis includes at least two components: the technic - the maintenance of the feasible technic and sanitary state of the water distribution systems and the medico-social - expenditures for screening and treatment of infected patients. In total they are an inseparable part of the prevention of socially-important diseases in the public health system.

Feasibility of Computer Processing of Technical Information on the Design of Instructional Systems. Final Report for the Period 1 July 1972 through 31 March 1973.

ERIC Educational Resources Information Center

Scheffler, F. L.; And Others

A feasibility study examined the capability of a computer-based system's handling of technical information pertinent to the design of instructional systems. Structured interviews were held to assess the information needs of both researchers and practitioners and an investigation was conducted of 10 computer-based information storage and retrieval…

7 CFR 4279.261 - Application for loan guarantee content.

Code of Federal Regulations, 2012 CFR

2012-01-01

... project; (2) The viability of such technology for the particular project application; (3) The development... location, size, etc.). Economic feasibility determination. Market feasibility determination. Technical.... Recommendations for implementation. (B) Economic Feasibility: Information regarding project site; Availability of...

Production, properties, and industrial food application of lactic acid bacteria-derived exopolysaccharides.

PubMed

Zannini, Emanuele; Waters, Deborah M; Coffey, Aidan; Arendt, Elke K

2016-02-01

Exopolysaccharides (EPS)-producing lactic acid bacteria (LAB) are industrially important microorganisms in the development of functional food products and are used as starter cultures or coadjutants to develop fermented foods. There is large variability in EPS production by LAB in terms of chemical composition, quantity, molecular size, charge, presence of side chains, and rigidity of the molecules. The main body of the review will cover practical aspects concerning the structural diversity structure of EPS, and their concrete application in food industries is reported in details. To strengthen the food application and process feasibility of LAB EPS at industrial level, a future academic research should be combined with industrial input to understand the technical shortfalls that EPS can address.

Good Housekeeping Implementation for Improving Efficiency in Cassava Starch Industry (Case Study : Margoyoso District, Pati Regency)

NASA Astrophysics Data System (ADS)

Aji, Wijayanto Setyo; Purwanto; Suherman, S.

2018-02-01

Cassava starch industry is one of the leading small-medium enterprises (SMEs) in Pati Regency. Cassava starch industry released waste that reduces the quantity of final product and potentially contamined the environment. This study was conducted to observe the feasibility of good housekeeping implementation to reduce waste and at the same time improve efficiency of production process. Good housekeeping opportunities are consideration by three aspect, technical, economy and environmental. Good housekeeping opportunities involved water conservation and waste reduction. These included reuse of water in washing process, improving workers awareness in drying section and packaging section. Implementation of these opportunities can reduce water consumption, reduce wastewater and solid waste generation also increased quantity of final product.

Quality of Care Measures for the Management of Unhealthy Alcohol Use

PubMed Central

Hepner, Kimberly A.; Watkins, Katherine E.; Farmer, Carrie M.; Rubenstein, Lisa; Pedersen, Eric R.; Pincus, Harold Alan

2017-01-01

There is a paucity of quality measures to assess the care for the range of unhealthy alcohol use, ranging from risky drinking to alcohol use disorders. Using a two-phase expert panel review process, we sought to develop an expanded set of quality of care measures for unhealthy alcohol use, focusing on outpatient care delivered in both primary care and specialty care settings. This process generated 25 candidate measures. Eight measures address screening and assessment, 11 address aspects of treatment, and six address follow-up. These quality measures represent high priority targets for future development, including creating detailed technical specifications and pilot testing them to evaluate their utility in terms of feasibility, reliability, and validity. PMID:28340902

Multisatellite constellation configuration selection for multiregional highly elliptical orbit constellations

NASA Technical Reports Server (NTRS)

Matossian, Mark G.

1994-01-01

The Archimedes Project is a joint effort of the European Space Agency (ESA) and the National Space Development Agency of Japan (NASDA). The primary goal of the Archimedes project is to perform a technical feasibility analysis and preliminary design of a highly inclined multisatellite constellation for direct broadcast and mobile communications services for Europe, Japan and much of North America. This report addresses one aspect of this project, specifically an analysis of continuous satellite coverage using multiregional highly elliptical orbits (M-HEO's). The analysis methodology and ensuing software tool, named SPIFF, were developed specifically for this project by the author during the summer of 1992 under the STA/NSF Summer Institute in Japan Program at Tsukuba Space Center.

The Imperial Paediatric Emergency Training Toolkit (IPETT) for use in paediatric emergency training: development and evaluation of feasibility and validity.

PubMed

Lambden, Simon; DeMunter, Claudine; Dowson, Anne; Cooper, Mehrengise; Gautama, Sanjay; Sevdalis, Nick

2013-06-01

To develop and test the feasibility, reliability, and validity of a practical toolkit for the assessment and feedback of skills required to manage paediatric emergencies in critical care settings. The Imperial Paediatric Emergency Training Toolkit (IPETT) was developed based on current evidence-base and expert input. IPETT assesses both technical and non-technical skills. The technical component covers skills in the areas of clinical assessment, airway and breathing, cardiovascular, and drugs. The non-technical component is based on the validated NOTECHS tool and covers communication and interaction, cooperation and team skills, leadership and managerial skills, and decision-making. The reliability (internal consistency), content validity (inter-correlations between different skills) and concurrent validity (correlations between global technical and non-technical scores) of IPETT were prospectively evaluated in 45 simulated paediatric crises carried out in a PICU with anaesthetic and paediatric trainees (N=52). Non-parametric analyses were carried out. Significance was set at P<0.05. Cronbach alpha reliability coefficients were overall acceptable for the technical (alpha range=0.638-0.810) and good for the non-technical (alpha range=0.701-0.899) component of IPETT. The median inter-skill correlation was rho=0.564 and rho=0.549 for the technical and non-technical components, respectively. These indicate good content validity, as the skills were inter-related but not redundant. We also demonstrate a correlation between the global technical and non-technical scores (rho=0.471) - all Ps<0.05 during the assessments. IPETT offers a psychometrically viable and feasible to use tool in the context of paediatric emergencies training. This study shows that assessment of technical and non-technical skills in combination may offer a more clinically relevant model for training in paediatric emergencies. Further validation should aim to demonstrate skill retention over time and skill transfer from simulation-based training to real emergencies. Copyright © 2013. Published by Elsevier Ireland Ltd.

EmerLoc: location-based services for emergency medical incidents.

PubMed

Maglogiannis, I; Hadjiefthymiades, S

2007-10-01

Recent developments in positioning systems and telecommunications have provided the technology needed for the development of location aware medical applications. We developed a system, named EmerLoc, which is based upon this technology and uses a set of sensors that are attached to the patient's body, a micro-computing unit which is responsible for processing the sensor readings and a central monitoring unit, which coordinates the data flow. To demonstrate that the proposed system is technically feasible and acceptable for the potential users. Transmission speed is assessed mostly by means of transmission of DICOM compliant images in various operational scenarios. The positioning functionality was established both outdoor using GPS and indoor using the UCLA Nibble system. User acceptability was assessed in a hospital setting by 15 physicians who filled in a questionnaire after having used the system in an experimental setting. Transmission speeds ranged from 88kB/s for a IEEE 802.11 infrastructure to 2.5kB/s for a GSM/GPRS scenario. Positioning accuracy based on GPS was 5-10m. The physicians rated the technical aspects on average above 3 on a 5-point scale. Only the data presentation was assessed to be not satisfactory (2.81 on a 5-point scale). The reported results prove the feasibility of the proposed architecture and its alignment with widely established practices and standards, while the reaction of potential users who evaluated the system is quite positive.

Intervention complexity--a conceptual framework to inform priority-setting in health.

PubMed Central

Gericke, Christian A.; Kurowski, Christoph; Ranson, M. Kent; Mills, Anne

2005-01-01

Health interventions vary substantially in the degree of effort required to implement them. To some extent this is apparent in their financial cost, but the nature and availability of non-financial resources is often of similar importance. In particular, human resource requirements are frequently a major constraint. We propose a conceptual framework for the analysis of interventions according to their degree of technical complexity; this complements the notion of institutional capacity in considering the feasibility of implementing an intervention. Interventions are categorized into four dimensions: characteristics of the basic intervention; characteristics of delivery; requirements on government capacity; and usage characteristics. The analysis of intervention complexity should lead to a better understanding of supply- and demand-side constraints to scaling up, indicate priorities for further research and development, and can point to potential areas for improvement of specific aspects of each intervention to close the gap between the complexity of an intervention and the capacity to implement it. The framework is illustrated using the examples of scaling up condom social marketing programmes, and the DOTS strategy for tuberculosis control in highly resource-constrained countries. The framework could be used as a tool for policy-makers, planners and programme managers when considering the expansion of existing projects or the introduction of new interventions. Intervention complexity thus complements the considerations of burden of disease, cost-effectiveness, affordability and political feasibility in health policy decision-making. Reducing the technical complexity of interventions will be crucial to meeting the health-related Millennium Development Goals. PMID:15868020

Intervention complexity--a conceptual framework to inform priority-setting in health.

PubMed

Gericke, Christian A; Kurowski, Christoph; Ranson, M Kent; Mills, Anne

2005-04-01

Health interventions vary substantially in the degree of effort required to implement them. To some extent this is apparent in their financial cost, but the nature and availability of non-financial resources is often of similar importance. In particular, human resource requirements are frequently a major constraint. We propose a conceptual framework for the analysis of interventions according to their degree of technical complexity; this complements the notion of institutional capacity in considering the feasibility of implementing an intervention. Interventions are categorized into four dimensions: characteristics of the basic intervention; characteristics of delivery; requirements on government capacity; and usage characteristics. The analysis of intervention complexity should lead to a better understanding of supply- and demand-side constraints to scaling up, indicate priorities for further research and development, and can point to potential areas for improvement of specific aspects of each intervention to close the gap between the complexity of an intervention and the capacity to implement it. The framework is illustrated using the examples of scaling up condom social marketing programmes, and the DOTS strategy for tuberculosis control in highly resource-constrained countries. The framework could be used as a tool for policy-makers, planners and programme managers when considering the expansion of existing projects or the introduction of new interventions. Intervention complexity thus complements the considerations of burden of disease, cost-effectiveness, affordability and political feasibility in health policy decision-making. Reducing the technical complexity of interventions will be crucial to meeting the health-related Millennium Development Goals.

Teleoncology in the Department of Defense: a tale of two systems.

PubMed

Hunter, D C; Brustrom, J E; Goldsmith, B J; Davis, L J; Carlos, M; Ashley, E; Gardner, G; Gaal, I

1999-01-01

Two telemedicine networks were developed for the purpose of conducting multidisciplinary oncology ("teleoncology") conferences. The infrastructure of each system differed: one system was Internet-based; the other was delivered via Integrated Services Digital Network (ISDN) lines. The purpose of this study was to describe the infrastructure and cost, consultative process, technical aspects, and conference format of the two teleoncology programs. The two systems' technical aspects, participant satisfaction with the systems, and conference participation were compared qualitatively. Assessment of the technical aspects of the systems suggested that each had distinct advantages. Survey results indicated that provider satisfaction with the technical and logistical aspects of each type of teleoncology conference was high. The present study may prove helpful for individuals who are considering implementing their own teleoncology programs.

Feasibility study concerning remediation and rehabilitation of industrial polluted lands on the Absheron Peninsula, Republic of Azerbaijan

NASA Astrophysics Data System (ADS)

Pivin, Majorie; Helsen, Stefan; Cuyvers, Lars

2014-05-01

ECOREM is carrying out a feasibility study focused on the remediation and rehabilitation of industrial polluted lands, located on the Absheron Peninsula (Republic of Azerbaijan), on behalf of the State Oil Company of Azerbaijan Republic (SOCAR). The objective of this study is to support SOCAR with specific technologies and capacity building for environmental remediation works on various sectors of the Peninsula. As an independent consultancy company, ECOREM provides sustainable and quality advice, seeking the balance to the interests of the client and the environment in the broadest sense of the word. Within this study, it is important to underline that extraction activities in the country have been going on for more than a century. Given that the age of the environmental problems is equal to the history of the oil production, it is nearly impossible to point out the responsibilities of the various companies or to define the exact activities that occurred on a particular location. From the data gathered so far, more than 3600 ha of oil contaminated area are known in Baku and the Absheron Peninsula. Within this feasibility study, ECOREM will advice SOCAR on suitable and best available remediation technologies to apply on prior contaminated areas. According to the Environmental Policy of the Company, SOCAR would like to act in priority on the numerous contaminated lands of the Absheron Peninsula. Through the exploitation of the extensive GIS database provided by SOCAR, the oil contaminated sites will be examined in details in order to determine the most sensitive areas, on which remediation works or monitoring should be implemented in priority. To locate these sites, ECOREM will provide SOCAR with technical support in order to conduct risk analysis, remediation and monitoring of soil and/or groundwater oil pollutions. According to these results, practical solutions will be proposed concerning the possible reuse and management of contaminated soils and hazardous wastes in the local area and industrial sites where a known risk (for health or ecosystems) is demonstrated. Various aspects are being considered to prioritize needed actions. The client will be informed on the existing remediation technologies and their applicability on the concerned lands, not only taking into account the pollution extent and local geology, but also the operation costs, and existing technical means of SOCAR and the country. With this knowledge as a starting point, ECOREM p.l.c. will strive to offer the most recent, innovative and customized solutions to advice SOCAR with the best available techniques for oil-contaminated land remediation and rehabilitation, in order to reduce the environmental externalities associated with the extraction activities. As a final aspect of this study, ECOREM will help SOCAR with the further development of their Strategic Action Plan for remediation and monitoring. Specific remediation measures will be defined in a realistic time schedule. Each and every stage of the proposed remediation technologies will be implemented in a realistic plan that needs to be technically and economically feasible for SOCAR.

Solar Heating and Cooling of Buildings: Phase 0. Feasibility and Planning Study. Volume 1: Executive Summary. Document No. 74SD419. Final Report.

ERIC Educational Resources Information Center

General Electric Co., Philadelphia, PA. Space Div.

The purpose of this study was to establish the technical and economic feasibility of using solar energy for the heating and cooling of buildings and to provide baseline information for the widespread application of solar energy. The initial step in this program was a study of the technical, economic, societal, legal, and environmental factors…

Research on advanced transportation systems

NASA Astrophysics Data System (ADS)

Nagai, Hirokazu; Hashimoto, Ryouhei; Nosaka, Masataka; Koyari, Yukio; Yamada, Yoshio; Noda, Keiichirou; Shinohara, Suetsugu; Itou, Tetsuichi; Etou, Takao; Kaneko, Yutaka

1992-08-01

An overview of the researches on advanced space transportation systems is presented. Conceptual study is conducted on fly back boosters with expendable upper stage rocket systems assuming a launch capacity of 30 tons and returning to the launch site by the boosters, and prospect of their feasibility is obtained. Reviews are conducted on subjects as follows: (1) trial production of 10 tons sub scale engines for the purpose of acquiring hardware data and picking up technical problems for full scale 100 tons thrust engines using hydrocarbon fuels; (2) development techniques for advanced liquid propulsion systems from the aspects of development schedule, cost; (3) review of conventional technologies, and common use of component; (4) oxidant switching propulsion systems focusing on feasibility of Liquefied Air Cycle Engine (LACE) and Compressed Air Cycle Engine (CACE); (5) present status of slosh hydrogen manufacturing, storage, and handling; (6) construction of small high speed dynamometer for promoting research on mini pump development; (7) hybrid solid boosters under research all over the world as low-cost and clean propulsion systems; and (8) high performance solid propellant for upper stage and lower stage propulsion systems.

48 CFR 1348.102 - Policies.

Code of Federal Regulations, 2010 CFR

2010-10-01

...-submitted Value Engineering Change Proposals (VECPs) to the appropriate technical personnel for review. (b) Technical personnel shall conduct a comprehensive review of VECPs for technical feasibility, usefulness, and adequacy of the contractor's estimate of cost savings; make a written report; and recommend acceptance or...

Voprosy professional'noj pedagogiki (Aspects of the Theory of Vocational Education).

ERIC Educational Resources Information Center

Batysev, S. J.; And Others

This document is an English-language abstract (Approximately 1,500 words) of a book by several Soviet authorities on vocational and technical education. The five sections of the book deal with general aspects of vocational and technical training; the theory of vocational training; psychological aspects of vocational training; basic instructional…

Ultrasound-Guided Radiofrequency Ablation Using a New Electrode with an Electromagnetic Position Sensor for Hepatic Tumors Difficult to Place an Electrode: A Preliminary Clinical Study.

PubMed

Kang, Tae Wook; Lee, Min Woo; Song, Kyoung Doo; Rhim, Hyunchul; Lim, Hyo Keun; Kang, Wonseok; Kim, Kyunga

2017-12-01

To evaluate whether a new electrode embedded with an electromagnetic position sensor (EMPS) improves the technical feasibility of percutaneous radiofrequency ablation (RFA) in patients with hepatic tumors difficult to place an electrode under ultrasonography (US) guidance and to assess short-term therapeutic efficacy and safety. This prospective study was approved by the institutional review board, and written informed consent was obtained from all patients. Between January 2015 and December 2016, 10 patients (7 men and 3 women; age range 52-75 years) with a single hepatic tumor (median 1.4 cm; range 1.1-1.8 cm) difficult to place an electrode under US guidance were enrolled. The technical feasibility of targeting and overlapping ablation during the RFA procedure was graded using a four-point scale and analyzed using the Wilcoxon signed rank test according to the use of EMPS. In addition, the rates of technical success, local tumor progression (LTP), and major complications were assessed. The use of the new RF electrode with EMPS significantly improved the technical feasibility of targeting and overlapping ablation (p = 0.002 and p = 0.003, respectively). After treatment, the technical success rate was 100%. LTP was not found in any patient during the follow-up period (median 8 months; range 4-22 months). No major procedure-related complications occurred. The technical feasibility of percutaneous RFA improves with the use of this RF electrode embedded with an EMPS. Short-term therapeutic efficacy and safety after RFA using the electrode were promising in patients with hepatic tumors difficult to place an electrode under US guidance.

Perihilar Glissonian Approach for Anatomical Parenchymal Sparing Liver Resections: Technical Aspects: The Taping Game.

PubMed

Figueroa, Rodrigo; Laurenzi, Andrea; Laurent, Alexis; Cherqui, Daniel

2018-03-01

To present technical details for central hepatectomy and right anterior and posterior sectionectomies using perihilar Glissonian approach for anatomical delineation and selective inflow occlusion. Central tumors and those deeply located in the right liver may require extensive resections because of their proximity to major vascular structures. In such cases, anatomical more limited resections such as central hepatectomy or sectionectomies may provide an alternative to extensive surgery by assuring both parenchymal sparing and suitable oncologic resection. We present the global concept for performing a perihilar Glissonian approach and its application to each individual anatomical procedure. This includes detailed descriptions, illustrations, and videos demonstrating the technique. This technique was applied since 1991 for anatomical parenchymal resections including central hepatectomy (resection of segments 4, 5, and 8), right anterior sectionectomy (resection of segments 5 and 8), and right posterior sectionectomy (resection of segments 6 and 7). The feasibility rate of the Glissonian approach was 88%. Perihilar Glissonian approach is a safe and reproducible technique that enables anatomical parenchymal preserving liver resections for selected central and right-sided deeply located tumors.

[An assessment of fiscal space for public health in Peru].

PubMed

Matus-López, Mauricio; Toledo, Lorena Prieto; Pedraza, Camilo Cid

2016-08-01

Objective To assess the fiscal space for public health in Peru so as to attain the goal of raising health spending to 6% of gross domestic product, as agreed upon by member countries of the Pan American Health Organization in 2014. Methods The main sources of fiscal space were identified by means of a thorough literature review. Technical feasibility was determined from statistics and national and international surveys and by reviewing various documents and official reports. Political feasibility was ascertained by studying policy guidelines. Results The sources showing the greatest technical and political feasibility are economic growth, a broadening of the personal income tax base, and an increase in tobacco-specific taxes. Decreasing informality in the job market and increasing contributory coverage are considered to be less politically feasible, but there is ample technical space for these measures. Conclusions There is enough fiscal space to allow for an increase in public health spending. Nevertheless, the 6% target will be reached only if the timeline is extended, tax revenues are increased, and informality in the job market is reduced.

Installation Restoration Program Stage 3. Remedial Investigation/ Feasibility Study Elmendorf AFB, Alaska. Volume 2. Section 5 - Bibliography Text

DTIC Science & Technology

1990-05-01

ELME’IDORF AFB, AK UNITED STATES AIR FORCE OCCUPATIONAL & ENVIRONMENTAL HEALTH LABORATORY (AFSC) ilb(. IiCAL Sr.(VICES DIVISION (AFOEHLi £3) I BROOKS AIR...UNITED STATES AIR FORCE OCCUPATIONAL AND ENVIRONMENTAL HEALTH LABORATORY (AFSC) TECHNICAL SERVICES DIVISION (AFOEHL/TS) BROOKS AIR FORCE BASE, TEXAS...the following criteria: technical feasibility, institutional requirements, environmental impacts, public health impacts, and cost. This Alternative

JT9D engine diagnostics. Task 2: Feasibility study of measuring in-service flight loads. [747 aircraft performance

NASA Technical Reports Server (NTRS)

Kafka, P. G.; Skibo, M. A.; White, J. L.

1977-01-01

The feasibility of measuring JT9D propulsion system flight inertia loads on a 747 airplane is studied. Flight loads background is discussed including the current status of 747/JT9D loads knowledge. An instrumentation and test plan is formulated for an airline-owned in-service airplane and the Boeing-owned RA001 test airplane. Technical and cost comparisons are made between these two options. An overall technical feasibility evaluation is made and a cost summary presented. Conclusions and recommendations are presented in regard to using existing inertia loads data versus conducting a flight test to measure inertia loads.

25 CFR 41.10 - Technical assistance.

Code of Federal Regulations, 2011 CFR

2011-04-01

... to, consulting services for the development of programs, plans, and feasibility studies and... section may be undertaken in the same manner as in the case of negative determinations of feasibility...

STARLAB UV-optical telescope facility, volume 1

NASA Technical Reports Server (NTRS)

1979-01-01

The STARLAB accomplishments to date include both the feasibility definition and detailed design study efforts on critical subsystems. Topics of discussion for this report include: (1) STARLAB capabilities; (2) scientific programs; (3) STARLAB technical description; (4) STARLAB Phase B studies; and (5) technical conclusions Technical recommendations.

Online consensus conferences for clinical guidelines development - a survey among participants from the International Guidelines for the Treatment of Actinic Keratosis.

PubMed

Werner, Ricardo N; Jacobs, Anja; Rosumeck, Stefanie; Nast, Alexander

2014-12-01

Guideline development requires considerable time and financial resources. New technical devices such as software for online conferences may help to reduce time and financial efforts of guidelines development. The present survey may serve as an explorative pilot for a future study to determine the technical feasibility, acceptability and possible weaknesses of online consensus conferences for clinical guidelines development. An anonymous online survey was conducted among participants in the online consensus conference of the International League of Dermatological Societies (ILDS) Guidelines for the Treatment of Actinic Keratosis. The majority of participants reported no technical problems with the participation in the online consensus conference; one participant had substantial technical problems accountable to a regional telephone breakdown. The majority of participants would not have preferred a traditional face-to-face conference, and all participants rated online consensus conferences for international guidelines as absolutely acceptable. Rates of acceptance were particularly high among those participants with prior experience with consensus conferences. Certain aspects, particularly the possibilities of debating, were rated as possibly superior in face-to-face conferences by some participants. The data from the online survey indicate that online consensus conferences may be an appropriate alternative to traditional face-to-face consensus conferences, especially within the frame of international guidelines that would require high travel costs and time. Further research is necessary to confirm the data from this explorative pilot study. © 2014 John Wiley & Sons, Ltd.

A process model of technology innovation in governmental agencies: Insights from NASA’s science directorate

NASA Astrophysics Data System (ADS)

Szajnfarber, Zoe; Weigel, Annalisa L.

2013-03-01

This paper investigates the process through which new technical concepts are matured in the NASA innovation ecosystem. We propose an "epoch-shock" conceptualization as an alternative mental model to the traditional stage-gate view. The epoch-shock model is developed inductively, based on detailed empirical observations of the process, and validated, to the extent possible, through expert review. The paper concludes by illustrating how the new epoch-shock conceptualization could provide a useful basis for rethinking feasible interventions to improve innovation management in the space agency context. Where the more traditional stage-gate model leads to an emphasis on centralized flow control, the epoch-shock model acknowledges the decentralized, probabilistic nature of key interactions and highlights which aspects may be influenced.

Endoscopic ultrasound-guided biliary drainage

PubMed Central

Chavalitdhamrong, Disaya; Draganov, Peter V

2012-01-01

Endoscopic ultrasound (EUS)-guided biliary drainage has emerged as a minimally invasive alternative to percutaneous and surgical interventions for patients with biliary obstruction who had failed endoscopic retrograde cholangiopancreatography (ERCP). EUS-guided biliary drainage has become feasible due to the development of large channel curvilinear therapeutic echo-endoscopes and the use of real-time ultrasound and fluoroscopy imaging in addition to standard ERCP devices and techniques. EUS-guided biliary drainage is an attractive option because of its minimally invasive, single step procedure which provides internal biliary decompression. Multiple investigators have reported high success and low complication rates. Unfortunately, high quality prospective data are still lacking. We provide detailed review of the use of EUS for biliary drainage from the perspective of practicing endoscopists with specific focus on the technical aspects of the procedure. PMID:22363114

PRSEUS Development for the Hybrid Wing Body Aircraft

NASA Technical Reports Server (NTRS)

Velicki, Alex; Jegley, Dawn

2011-01-01

NASA has created the Environmentally Responsible Aviation (ERA) Project to explore and document the feasibility, benefits and technical risk of advanced vehicle configurations and enabling technologies that will reduce the impact of aviation on the environment. A critical aspect of this pursuit is the development of a lighter, more robust airframe that will enable the introduction of unconventional aircraft configurations that have higher lift to drag ratios, reduced drag, and lower community noise. The primary structural concept being developed for the Hybrid Wing Body aircraft design under the ERA project in the Airframe Technology element is the PRSEUS concept. This paper describes how researchers at NASA and Boeing are working together to develop fundamental PRSEUS technologies that could someday be implemented on a transport size HWB airplane design.

Innovations in percutaneous nephrolithotomy.

PubMed

Tailly, Thomas; Denstedt, John

2016-12-01

Technical innovations in all aspects of percutaneous nephrolithotomy have changed the field considerably. The current review is aimed at reporting on the most recent advancements in the field of percutaneous nephrolithotomy. Improvements in CT imaging and the possibility of 3D rendering have dethroned the intravenous pyelogram as gold standard for pre-operative imaging. Where gaining access in the lower pole in prone position with telescopic metal dilators, placing a 30F tract used to be standard, the plethora of alternatives provides the trained surgeon with a large armamentarium to tackle any obstacle. Novel lithotripters appear more efficient than their predecessors and with tubeless PCNL gaining some momentum, ambulatory PCNL is slowly but surely becoming feasible rather than fictional. Copyright © 2016 IJS Publishing Group Ltd. Published by Elsevier Ltd. All rights reserved.

Solar Electric Propulsion System Integration Technology (SEPSIT). Volume 1: Technical summary

NASA Technical Reports Server (NTRS)

Gardner, J. A.

1972-01-01

The use of solar electric propulsion as a means of exploring space beyond the reach of ballistic missions was investigated. The method used was to study the application of this new propulsion technology to a future flight project. A 1980 Encke rendezvous mission was chosen because a design successful for Encke could be used for less difficult, but scientifically rewarding, missions. Design points for the mission and for the thrust subsystem were specified. The baseline-vehicle design was defined. A preliminary functional description document for the thrust subsystem was originated. Analyses were performed in support of the design point selection for the SEP-module thrust subsystem to specify parameters, to clarify and optimize the interface requirements, and to assure feasibility of some of the more critical technological aspects of SEP application.

Required Operational Capability, USMC-ROC-LOG-216.3.5 for the Ration, Cold Weather.

DTIC Science & Technology

1987-05-06

in operations or training in an arctic environment . b. Organizational Concept. The ration , cold weather will be issued in accordance with established...all services. 2 ROC-ARCTIC 7. TECHNICAL FEASIBILITY AND ENERGY/ ENVIRONMENTAL IMPACTS a. Technical Feasibility. The risk of developing the ration ...r -A1833 963 REQUIRED OPERATIONAL CAPABILITY USMC-ROC-LOG-21635 FOR 1t/1 THE RATION COLD WEATHER(U) MARINE CORPS WASHINGTON DC 86 MAY 87 USMC-ROC-LOG

Technical Feasibility Study for Zero Energy K-12 Schools

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bonnema, Eric; Goldwasser, David; Torcellini, Paul

This technical feasibility study provides documentation and research results supporting a possible set of strategies to achieve source zero energy K-12 school buildings as defined by the U.S. Department of Energy (DOE) zero energy building (ZEB) definition (DOE 2015a). Under this definition, a ZEB is an energy-efficient building in which, on a source energy basis, the actual annual delivered energy is less than or equal to the on-site renewable exported energy.

Feasibility, efficacy, and predictive factors for the technical success of endoscopic nasogallbladder drainage: a prospective study.

PubMed

Yane, Kei; Maguchi, Hiroyuki; Katanuma, Akio; Takahashi, Kuniyuki; Osanai, Manabu; Kin, Toshifumi; Takaki, Ryo; Matsumoto, Kazuyuki; Gon, Katsushige; Matsumori, Tomoaki; Tomonari, Akiko; Nojima, Masanori

2015-03-01

Several studies have shown the useful-ness of endoscopic nasogallbladder drainage (ENGBD) in patients with acute cholecystitis. However, the procedure is difficult, and factors that affect technical success have not yet been clarified. We conducted a prospective study to eval-uate the technical feasibility, efficacy, and predictive factors for the technical success of ENGBD in patients with acute cholecystitis. All patients with moderate or severe acute cholecystitis who were enrolled underwent ENGBD between April 2009 and April 2011. Patients with surgically altered anatomy or pancreatobiliary malignancies were ex-cluded. The primary outcomes included technical success, clinical success, and complications. Factors that could affect the technical success were also examined. Of the 27 patients who underwent ENGBD during the study period, technical success was achieved in 21 (78%) and clinical improvement was achieved in 20 (95%). Early complications were encountered in four patients (15%). Gallbladder wall thickness (odds ratio [OR], 1.64; 95% confidence interval [CI], 1.08 to 2.47) and age (OR, 1.16; 95% CI, 1.00 to 1.35) were effective predictors of technical failure. ENGBD was effective in resolving acute cholecystitis; however, this modality was technically challenging and had a limited suc-cess rate. Because of technical difficulties, ENGBD should be reserved for limited indications. (Gut Liver, 2015;9239-246).

Base compaction specification feasibility analysis.

DOT National Transportation Integrated Search

2012-12-01

The objective of this research is to establish the technical engineering and cost : analysis concepts that will enable WisDOT management to objectively evaluate the : feasibility of switching construction specification philosophies for aggregate base...

Reactor technology assessment and selection utilizing systems engineering approach

NASA Astrophysics Data System (ADS)

Zolkaffly, Muhammed Zulfakar; Han, Ki-In

2014-02-01

The first Nuclear power plant (NPP) deployment in a country is a complex process that needs to consider technical, economic and financial aspects along with other aspects like public acceptance. Increased interest in the deployment of new NPPs, both among newcomer countries and those with expanding programs, necessitates the selection of reactor technology among commercially available technologies. This paper reviews the Systems Decision Process (SDP) of Systems Engineering and applies it in selecting the most appropriate reactor technology for the deployment in Malaysia. The integrated qualitative and quantitative analyses employed in the SDP are explored to perform reactor technology assessment and to select the most feasible technology whose design has also to comply with the IAEA standard requirements and other relevant requirements that have been established in this study. A quick Malaysian case study result suggests that the country reside with PWR (pressurized water reactor) technologies with more detailed study to be performed in the future for the selection of the most appropriate reactor technology for Malaysia. The demonstrated technology assessment also proposes an alternative method to systematically and quantitatively select the most appropriate reactor technology.

Endoscopy/EUS-guided fiducial marker placement in patients with esophageal cancer: a comparative analysis of 3 types of markers.

PubMed

Machiels, Melanie; van Hooft, Jeanin; Jin, Peng; van Berge Henegouwen, Mark I; van Laarhoven, Hanneke M; Alderliesten, Tanja; Hulshof, Maarten C

2015-10-01

Markers placed at the borders of esophageal tumors are potentially useful to facilitate radiotherapy (RT) target delineation, which offers the possibility of image-guided RT. To evaluate and compare the feasibility and technical benefit of endoscopy/EUS-guided marker placement of 3 different types of markers in patients with esophageal cancer referred for RT. Prospective, single-center, feasibility and comparative study. Tertiary-care medical center. Thirty patients with esophageal cancer who were referred for RT. Patients underwent endoscopy/EUS-guided implantation of 1 type of marker. A solid gold marker (SM) with fixed dimensions, a flexible coil-shaped gold marker (FM) with hand-cut length (2-10 mm), and a radiopaque hydrogel marker (HG) were used. Technical feasibility and adverse events were registered. CT scans and cone-beam CT scans (CBCT) acquired during RT were analyzed to determine and compare the visibility and continuous clear visibility of the implanted markers. Technical feasibility, technical benefit, and adverse events of 3 types of markers. A total of 101 markers were placed in 30 patients. Implantation was technically feasible in all patients without grade 3 to 4 adverse events. Two patients with asymptomatic mediastinitis and one with asymptomatic pneumothorax were seen. Visibility on CT scan of all 3 types of implanted markers was adequate for target delineation. Eighty percent of FMs remained continuously visible over the treatment period on CBCT, significantly better than SMs (63%) and HGs (11%) (P = .015). When we selected FMs ≥5 mm, 90.5% remained visible on CBCT between implantation and the end of RT. Single-center, nonrandomized design. Endoscopy/EUS-guided fiducial marker placement for esophageal cancer is both safe and feasible and can be used for target volume delineation purposes on CT. Our results imply a significant advantage of FMs over SMs and HGs, regarding visibility and continuous clear visibility over the treatment period. ( NTR4724.). Copyright © 2015 American Society for Gastrointestinal Endoscopy. Published by Elsevier Inc. All rights reserved.

The Systems Test Architect: Enabling The Leap From Testable To Tested

DTIC Science & Technology

2016-09-01

engineering process requires an interdisciplinary approach, involving both technical and managerial disciplines applied to the synthesis and integration...relationship between the technical and managerial aspects of systems engineering. TP-2003-020-01 describes measurement as having the following...it is evident that DOD makes great strides to tackle both the managerial and technical aspects of test and evaluation within the systems

Cape Lookout National Seashore passenger ferry transportation feasibility study

DOT National Transportation Integrated Search

2010-09-01

The Cape Lookout National Seashore Passenger Ferry Transportation Feasibility Study is a technical study documenting the capital investment and operational considerations associated with consolidation of passenger ferry service from Harkers Island an...

Metastatic renal cell carcinoma: CT-guided immunotherapy as a technically feasible and safe approach to delivery of gene therapy for treatment.

PubMed

Suh, Robert D; Goldin, Jonathan G; Wallace, Amanda B; Sheehan, Ramon E; Heinze, Stefan B; Gitlitz, Barbara J; Figlin, Robert A

2004-05-01

To assess the technical feasibility and safety of weekly outpatient percutaneous computed tomographic (CT)-guided intratumoral injections of interleukin-2 (IL-2) plasmid DNA in a wide variety of superficial and deep tumor sites. Twenty-nine patients with metastatic renal cell carcinoma and a total of 30 lesions measuring 1.0 cm(2) or greater in accessible thoracic (n = 15) or abdominal (n = 15) locations underwent up to three cycles of six weekly intratumoral IL-2 plasmid DNA injections. CT was used to guide needle placement and injection. After injection cycle 1, patients whose tumors demonstrated stable (< or =25% increase and < or =50% decrease in product of lesion diameters) or decreased size (>50% decrease in product of lesion diameters) advanced to injection cycle 2. Patients whose lesions decreased in size by more than 50% over the course of injection cycle 2 were eligible to begin injection cycle 3. An acceptable safety and technical feasibility profile for this technique was deemed to be (a) a safety and feasibility profile similar to that of single-needle biopsy and (b) an absence of serious adverse events (as defined in Title 21 of the Code of Federal Regulations) and/or unacceptable toxicities (as graded according to the National Cancer Institute Common Toxicity Criteria). A total of 284 intratumoral injections were performed, with a mean of 9.8 injections (range, 6-18 injections) received by each patient. Technical success (needle placement and injection of gene therapy agent) was achieved in all cases. Complications were experienced after 42 (14.8%) of the 284 injections. The most common complication was pneumothorax (at 32 [28.6%] of 112 intrathoracic injections), for which only one patient required catheter drainage. Complications occurred randomly throughout injection cycles and did not appear to increase as patients received more injections (P =.532). No patient experienced serious adverse events or unacceptable toxicities. Percutaneous CT-guided intratumoral immunotherapy injections are technically feasible and can be safely performed.

Technical aspects of the integration of three-dimensional treatment planning dose parameters (GEC-ESTRO Working Group) into pre-implant planning for LDR gynecological interstitial brachytherapy.

PubMed

Chi, A; Gao, M; Nguyen, N P; Albuquerque, K

2009-06-01

This study investigates the technical feasibility of pre-implant image-based treatment planning for LDR GYN interstitial brachytherapy(IB) based on the GEC-ESTRO guidelines. Initially, a virtual plan is generated based on the prescription dose and GEC-ESTRO defined OAR dose constraints with a pre-implant CT. After the actual implant, a regular diagnostic CT was obtained and fused with our pre-implant scan/initial treatment plan in our planning software. The Flexi-needle position changes, and treatment plan modifications were made if needed. Dose values were normalized to equivalent doses in 2 Gy fractions (LQED 2 Gy) derived from the linear-quadratic model with alpha/beta of 3 for late responding tissues and alpha/beta of 10 for early responding tissues. D(90) to the CTV, which was gross tumor (GTV) at the time of brachytherapy with a margin to count for microscopic disease, was 84.7 +/- 4.9% of the prescribed dose. The OAR doses were evaluated by D(2cc) (EBRT+IB). Mean D(2cc) values (LQED(2Gy)) for the rectum, bladder, sigmoid, and small bowel were the following: 63.7 +/- 8.4 Gy, 61.2 +/- 6.9 Gy, 48.0 +/- 3.5 Gy, and 49.9 +/- 4.2 Gy. This study confirms the feasibility of applying the GEC-ESTRO recommended dose parameters in pre-implant CT-based treatment planning in GYN IB. In the process, this pre-implant technique also demonstrates a good approximation of the target volume dose coverage, and doses to the OARs.

Technical Feasibility Study for Deployment of Ground-Source Heat Pump Systems: Portsmouth Naval Shipyard -- Kittery, Maine

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hillesheim, M.; Mosey, G.

2014-11-01

The U.S. Environmental Protection Agency (EPA) Office of Solid Waste and Emergency Response, in accordance with the RE-Powering America's Lands initiative, engaged the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to conduct feasibility studies to assess the viability of developing renewable energy generating facilities on contaminated sites. Portsmouth Naval Shipyard (PNSY) is a United States Navy facility located on a series of conjoined islands in the Piscataqua River between Kittery, ME and Portsmouth, NH. EPA engaged NREL to conduct a study to determine technical feasibility of deploying ground-source heat pump systems to help PNSY achieve energy reductionmore » goals.« less

Implementing 360° Quantified Self for childhood obesity: feasibility study and experiences from a weight loss camp in Qatar.

PubMed

Fernandez-Luque, Luis; Singh, Meghna; Ofli, Ferda; Mejova, Yelena A; Weber, Ingmar; Aupetit, Michael; Jreige, Sahar Karim; Elmagarmid, Ahmed; Srivastava, Jaideep; Ahmedna, Mohamed

2017-04-13

The explosion of consumer electronics and social media are facilitating the rise of the Quantified Self (QS) movement where millions of users are tracking various aspects of their daily life using social media, mobile technology, and wearable devices. Data from mobile phones, wearables and social media can facilitate a better understanding of the health behaviors of individuals. At the same time, there is an unprecedented increase in childhood obesity rates worldwide. This is a cause for grave concern due to its potential long-term health consequences (e.g., diabetes or cardiovascular diseases). Childhood obesity is highly prevalent in Qatar and the Gulf Region. In this study we examine the feasibility of capturing quantified-self data from social media, wearables and mobiles within a weight lost camp for overweight children in Qatar. Over 50 children (9-12 years old) and parents used a wide range of technologies, including wearable sensors (actigraphy), mobile and social media (WhatsApp and Instagram) to collect data related to physical activity and food, that was then integrated with physiological data to gain insights about their health habits. In this paper, we report about the acquired data and visualization techniques following the 360° Quantified Self (360QS) methodology (Haddadi et al., ICHI 587-92, 2015). 360QS allows for capturing insights on the behavioral patterns of children and serves as a mechanism to reinforce education of their mothers via social media. We also identified human factors, such as gender and cultural acceptability aspects that can affect the implementation of this technology beyond a feasibility study. Furthermore, technical challenges regarding the visualization and integration of heterogeneous and sparse data sets are described in the paper. We proved the feasibility of using 360QS in childhood obesity through this pilot study. However, in order to fully implement the 360QS technology careful planning and integration in the health professionals' workflow is needed. The trial where this study took place is registered at ClinicalTrials.gov on 14 November 2016 ( NCT02972164 ).

Technical-economic feasibility of orbiting sunlight reflectors

NASA Astrophysics Data System (ADS)

Alferov, Z.; Minin, V.

1986-02-01

The use of deflectors in orbit as a means of providing artificial illumination is examined. Considerations of technical and economic feasibility are addressed. Three main areas of application are distinguished: reflecting sunlight onto the surface of the Earth; concentration of the flow of solar energy on an orbiting receiver; and retransmission of optical radiation. The advantages of the artificial Earth illumination application of the orbiting reflector scheme in terms of energy savings in lighting cities, and additional daylight time for critical periods of farming operations are discussed.

43 CFR 404.23 - How will Reclamation determine whether you or your contractor is qualified to conduct an...

Code of Federal Regulations, 2011 CFR

2011-10-01

... or your contractor is qualified to conduct an appraisal investigation or a feasibility study? 404.23... feasibility study yourself or though a contractor, Reclamation will evaluate whether you, your technical staff, or contractor are qualified to perform the appraisal investigation or feasibility study based on...

Technical aspects of cardiac PET/MRI.

PubMed

Masuda, Atsuro; Nemoto, Ayaka; Takeishi, Yasuchika

2018-06-01

PET/MRI is a novel modality that enables to combine PET and MR images, and has significant potential to evaluate various cardiac diseases through the combination of PET molecular imaging and MRI functional imaging. Precise management of technical issues, however, is necessary for cardiac PET/MRI. This article describes several technical points, including patient preparation, MR attenuation correction, parallel acquisition of PET with MRI, clinical aspects, and image quality control.

Vessel Cold-Ironing Using a Barge Mounted PEM Fuel Cell: Project Scoping and Feasibility.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pratt, Joseph William; Harris, Aaron P.

2013-01-01

A barge-mounted hydrogen-fueled proton exchange membrane (PEM) fuel cell system has the potential to reduce emissions and fossil fuel use of maritime vessels in and around ports. This study determines the technical feasibility of this concept and examines specific options on the U.S. West Coast for deployment practicality and potential for commercialization.The conceptual design of the system is found to be straightforward and technically feasible in several configurations corresponding to various power levels and run times.The most technically viable and commercially attractive deployment options were found to be powering container ships at berth at the Port of Tacoma and/or Seattle,more » powering tugs at anchorage near the Port of Oakland, and powering refrigerated containers on-board Hawaiian inter-island transport barges. Other attractive demonstration options were found at the Port of Seattle, the Suisun Bay Reserve Fleet, the California Maritime Academy, and an excursion vessel on the Ohio River.« less

West Hackberry Tertiary Project. Quarterly technical progress report, July 1--September 30, 1995

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility of combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the use of air as the injection fluid. The target reservoir for the project is the Camerina C-1,2,3 Sand located on the West Flank of West Hackberry Field in Cameron Parish, Louisiana. If successful, this project will demonstrate that the usemore » of air injection in the Double Displacement Process can economically recover oil in reservoirs where tertiary oil recovery is presented uneconomic. During this quarter, the West Hackberry Tertiary Project completed the first ten months of air injection operations. Plots of air injection rates and cumulative air injected are included in this report as attachments. The following events are reviewed in this quarter`s technical progress report: (1) successful workovers on the Gulf Land D Nos. 44, 45 and 51 and the Watkins No. 3; (2) the unsuccessful repair attempt on the Watkins No. 16; (3) gathering of additional bottom hole pressure data; (4) air compressor operations and repairs; and (5) technology transfer activities.« less

Patient-specific simulation in carotid artery stenting.

PubMed

Willaert, Willem; Aggarwal, Rajesh; Bicknell, Colin; Hamady, Mo; Darzi, Ara; Vermassen, Frank; Cheshire, Nicholas

2010-12-01

Patient-specific virtual reality (VR) simulation is a technologic advancement that allows planning and practice of the carotid artery stenting (CAS) procedure before it is performed on the patient. The initial findings are reported, using this novel VR technique as a tool to optimize technical and nontechnical aspects of this complex endovascular procedure. In the angiography suite, the same interventional team performed the VR rehearsal and the actual CAS on the patient. All proceedings were recorded to allow for video analysis of team, technical, and nontechnical skills. Analysis of both procedures showed identical use of endovascular tools, similar access strategy, and a high degree of similarity between the angiography images. The total procedure time (24.04 vs 60.44 minutes), fluoroscopy time (11.19 vs 21.04 minutes), and cannulation of the common carotid artery (1.35 vs 9.34) took considerably longer in reality. An extensive questionnaire revealed that all team members found that the rehearsal increased the subjective sense of teamwork (4/5), communication (4/5), and patient safety (4/5). A VR procedure rehearsal is a practical and feasible preparatory tool for CAS and shows a high correlation with the real procedure. It has the potential to enhance the technical, nontechnical, and team performance. Further research is needed to evaluate if this technology can lead to improved outcomes for patients. Copyright © 2010 Society for Vascular Surgery. Published by Mosby, Inc. All rights reserved.

Computer Programs for Technical Communicators: The Compelling Curriculum. Working Draft.

ERIC Educational Resources Information Center

Selfe, Cynthia L.; Wahlstrom, Billie J.

A series of computer programs have been developed at Michigan Technological University for use with technical writing and technical communications classes. The first type of program in the series, CURIE II, includes process-based modules, each of which corresponds to one of the following assignments: memoranda, resumes, feasibility reports,…

Canton hydroelectric project: feasibility study. Final report, appendices

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

1979-05-01

These appendices contain legal, environmental, regulatory, technical and economic information used in evaluating the feasibility of redeveloping the hydroelectric power generating facilities at the Upper and Lower Dams of the Farmington River at Collinsville, CT. (LCL)

Process research of non-CZ silicon material

NASA Technical Reports Server (NTRS)

1983-01-01

High risk, high payoff research areas associated with the Westinghouse process for producing photovoltaic modules using non- CZ sheet material were investigated. All work was performed using dendritic web silicon. The following tasks are discussed and associated technical results are given: (1) determining the technical feasibility of forming front and back junctions in non-CT silicon using dopant techniques; (2) determining the feasibility of forming a liquid applied diffusion mask to replace the more costly chemical vapor deposited SiO2 diffusion mask; (3) determining the feasibility of applying liquid anti-reflective solutions using meniscus coating equipment; (4) studying the production of uniform, high efficiency solar cells using ion implanation junction formation techniques; and (5) quantifying cost improvements associated with process improvements.

Feasibility Study of Economics and Performance of Solar Photovoltaics at the Stringfellow Superfund Site in Riverside, California

DOE Office of Scientific and Technical Information (OSTI.GOV)

Mosey, G.; Van Geet, O.

2010-12-01

This report presents the results of an assessment of the technical and economic feasibility of deploying a photovoltaics (PV) system on the Stringfellow Superfund Site in Riverside, California. The site was assessed for possible PV installations. The cost, performance, and site impacts of different PV options were estimated. The economics of the potential systems were analyzed using an electric rate of $0.13/kWh and incentives offered by Southern California Edison under the California Solar Initiative. According to the assessment, a government-owned, ground-mounted PV system represents a technically and economically feasible option. The report recommends financing options that could assist in themore » implementation of such a system.« less

Assessment of lightweight mobile nuclear power systems. [for airborne vehicles

NASA Technical Reports Server (NTRS)

Anderson, J. L.; Rom, F. E.

1973-01-01

A review was made of lightweight mobile nuclear power systems (LMNPS). Data cover technical feasibility studies of LMNPS and airborne vehicles, mission studies, and non-technical conditions that are required to develop and use LMNPS.

Set-up of a pump as turbine use in micro-pumped hydro energy storage: a case of study in Froyennes Belgium

NASA Astrophysics Data System (ADS)

Morabito, A.; Steimes, J.; Bontems, O.; Zohbi, G. Al; Hendrick, P.

2017-04-01

Its maturity makes pumped hydro energy storage (PHES) the most used technology in energy storage. Micro-hydro plants (<100 kW) are globally emerging due to further increases in the share of renewable electricity production such as wind and solar power. This paper presents the design of a micro-PHES developed in Froyennes, Belgium, using a pump as turbine (PaT) coupled with a variable frequency driver (VFD). The methods adopted for the selection of the most suitable pump for pumping and reverse mode are compared and discussed. Controlling and monitoring the PaT performances represent a compulsory design phase in the analysis feasibility of PaT coupled with VFD in micro PHES plant. This study aims at answering technical research aspects of µ-PHES site used with reversible pumps.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Cazzato, Roberto Luigi, E-mail: gigicazzato@hotmail.it; Garnon, Julien; Department of Interventional Radiology, Nouvel Hôpital Civil

ObjectivesThe purpose of this study is to discuss technical aspects and rationales of magnetic resonance (MR)-guided cryoablation (CA) of Morton’s neuroma (MN); preliminary clinical experience is also retrospectively reviewed.MethodsProcedures were performed under local anaesthesia on an outpatient basis. Lesion size and location, procedural (technical success, procedural time, complications) and clinical outcomes (patient satisfaction according to a four-point scale, residual pain according to a 0–10 visual analogue scale and instances of “stump neuroma”) were assessed via chart review and cross-sectional telephone survey after the 20th case.ResultsTwenty patients (15 female, 5 male; mean age 50.3 years) were included; 24 MN (mean size 12.7 mm)more » were treated. Technical success was 100 %. Mean procedural time was 40.9 ± 10.4 min (range 35–60). One minor complication (superficial cellulitis) was reported (4.2 %). Follow-up (mean 19.7 months) was available for 18/24 MN. Patient satisfaction on a per-lesion basis was as follows: “completely satisfied” in 77.7 %, “satisfied with minor reservations” in 16.6 % and “satisfied with major reservations” in 5.7 % of cases. Mean pain score at last follow-up post-CA was 3.0. No instances of “stump neuroma” were reported.ConclusionsMR-guided CA of MN is a novel therapy which appears technically feasible. Clinical advantages of the procedure are high patient satisfaction, reduced risk of “stump neuroma” syndrome and good patient tolerance on an outpatient basis. Further, prospective studies are needed to confirm these encouraging results.« less

Patient-specific rehearsal prior to EVAR: a pilot study.

PubMed

Desender, L; Rancic, Z; Aggarwal, R; Duchateau, J; Glenck, M; Lachat, M; Vermassen, F; Van Herzeele, I

2013-06-01

This study aims to evaluate feasibility, face validity, influence on technical factors and subjective sense of utility of patient-specific rehearsal (PsR) prior to endovascular aortic aneurysm repair (EVAR). A prospective, multicentre pilot study. Patients suitable for EVAR were enrolled and a three-dimensional (3D) model of the patient's anatomy was generated. Less than 24 h prior to the real case, rehearsals were conducted in the laboratory or clinical angiosuite. Technical metrics were recorded during both procedures. A subjective questionnaire was used to evaluate realism, technical and human factor aspects (scale 1-5). Ten patients were enrolled. In one case, the treatment plan was altered based on PsR. In 7/9 patients, the rehearsal significantly altered the optimal C-arm position for the proximal landing zone and an identical fluoroscopy angle was chosen in the real procedure. All team members found the rehearsal useful for selecting the optimal fluoroscopy angle (median 4). The realism of the EVAR procedure simulation was rated highly (median 4). All team members found the PsR useful to prepare the individual team members and the entire team (median 4). PsR for EVAR permits creation of realistic case studies. Subjective evaluation indicates that it may influence optimal C-arm angles and be valuable to prepare the entire team. A randomised controlled trial (RCT) is planned to evaluate how this technology may influence technical and team performance, ultimately leading to improved patient safety. Copyright © 2013 European Society for Vascular Surgery. Published by Elsevier Ltd. All rights reserved.

Energy utilization: municipal waste incineration. Final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

LaBeck, M.F.

An assessment is made of the technical and economical feasibility of converting municipal waste into useful and useable energy. The concept presented involves retrofitting an existing municipal incinerator with the systems and equipment necessary to produce process steam and electric power. The concept is economically attractive since the cost of necessary waste heat recovery equipment is usually a comparatively small percentage of the cost of the original incinerator installation. Technical data obtained from presently operating incinerators designed specifically for generating energy, documents the technical feasibility and stipulates certain design constraints. The investigation includes a cost summary; description of process andmore » facilities; conceptual design; economic analysis; derivation of costs; itemized estimated costs; design and construction schedule; and some drawings.« less

Feasibility and applications of RFID technologies to support Right-of-Way functions : technical report

DOT National Transportation Integrated Search

2010-08-01

Radio frequency identification device (RFID) technology provides the capability to store a unique identification : number and some basic attribute information, which can be retrieved wirelessly. This research project studied : the feasibility of usin...

The ISACA Business Model for Information Security: An Integrative and Innovative Approach

NASA Astrophysics Data System (ADS)

von Roessing, Rolf

In recent years, information security management has matured into a professional discipline that covers both technical and managerial aspects in an organisational environment. Information security is increasingly dependent on business-driven parameters and interfaces to a variety of organisational units and departments. In contrast, common security models and frameworks have remained largely technical. A review of extant models ranging from [LaBe73] to more recent models shows that technical aspects are covered in great detail, while the managerial aspects of security are often neglected.Likewise, the business view on organisational security is frequently at odds with the demands of information security personnel or information technology management. In practice, senior and executive level management remain comparatively distant from technical requirements. As a result, information security is generally regarded as a cost factor rather than a benefit to the organisation.

ICCS 2009 Technical Report

ERIC Educational Resources Information Center

Schulz, Wolfram, Ed.; Ainley, John, Ed.; Fraillon, Julian, Ed.

2011-01-01

This report is structured so as to provide technical detail about each aspect of International Civic and Citizenship Education Study (ICCS). The overview is followed by a series of chapters that provide detail about different aspects of ICCS. Chapters, 2, 3, 4, and 5 are concerned with the instruments. Chapter 2 provides information about the…

Using virtual robot-mediated play activities to assess cognitive skills.

PubMed

Encarnação, Pedro; Alvarez, Liliana; Rios, Adriana; Maya, Catarina; Adams, Kim; Cook, Al

2014-05-01

To evaluate the feasibility of using virtual robot-mediated play activities to assess cognitive skills. Children with and without disabilities utilized both a physical robot and a matching virtual robot to perform the same play activities. The activities were designed such that successfully performing them is an indication of understanding of the underlying cognitive skills. Participants' performance with both robots was similar when evaluated by the success rates in each of the activities. Session video analysis encompassing participants' behavioral, interaction and communication aspects revealed differences in sustained attention, visuospatial and temporal perception, and self-regulation, favoring the virtual robot. The study shows that virtual robots are a viable alternative to the use of physical robots for assessing children's cognitive skills, with the potential of overcoming limitations of physical robots such as cost, reliability and the need for on-site technical support. Virtual robots can provide a vehicle for children to demonstrate cognitive understanding. Virtual and physical robots can be used as augmentative manipulation tools allowing children with disabilities to actively participate in play, educational and therapeutic activities. Virtual robots have the potential of overcoming limitations of physical robots such as cost, reliability and the need for on-site technical support.

Hydrogel: Preparation, characterization, and applications: A review

PubMed Central

Ahmed, Enas M.

2013-01-01

Hydrogel products constitute a group of polymeric materials, the hydrophilic structure of which renders them capable of holding large amounts of water in their three-dimensional networks. Extensive employment of these products in a number of industrial and environmental areas of application is considered to be of prime importance. As expected, natural hydrogels were gradually replaced by synthetic types due to their higher water absorption capacity, long service life, and wide varieties of raw chemical resources. Literature on this subject was found to be expanding, especially in the scientific areas of research. However, a number of publications and technical reports dealing with hydrogel products from the engineering points of view were examined to overview technological aspects covering this growing multidisciplinary field of research. The primary objective of this article is to review the literature concerning classification of hydrogels on different bases, physical and chemical characteristics of these products, and technical feasibility of their utilization. It also involved technologies adopted for hydrogel production together with process design implications, block diagrams, and optimized conditions of the preparation process. An innovated category of recent generations of hydrogel materials was also presented in some details. PMID:25750745

First ALPPS procedure using a total robotic approach.

PubMed

Vicente, E; Quijano, Y; Ielpo, B; Fabra, I

2016-12-01

ALPPS procedure is gaining interest. Indications and technical aspects of this technique are still under debate [1]. Only 4 totally laparoscopic ALPPS procedures have been described in the literature and none by robotic approach [2-4]. This video demonstrates the technical aspects of totally robotic ALPPS. A 58 year old man with sigmoid adenocarcinoma with multiple right liver metastases extended to segment IV and I underwent Xelox and 5 Fluoro-uracil neoadjuvancy. Preoperative CT volumetric scan showed a FLR/TLV (Future Liver Remnant/Total Liver Volume) of 28%. ALPPS totally robotic procedure was planned using the DaVinci Si. Tumor resection from the FLR (including segment I) is followed by parenchymal transection between the FLR and the diseased part of the liver with concomitant right portal vein ligation. Small branches to segment IV from left portal vein have been resected along the round ligament, at this step. The right biliary tract was resected as it was partially debilitated after its dissection as partially encircled by a metastasis at segment IV. Second stage was performed totally robotic on 13th postoperative days with a FLR/TLV of 40%. No strong adherences are found, making this stage much easer than open approach. During this step, right hepatic artery and right supra hepatic vein are resected. Finally, the specimen was retrieved inside a plastic bag through a Pfannenstiel incision. Postoperative pathology showed margins free from disease. ALPPS procedure performed by robotic approach could be a safe and feasible technique in experienced centers with advanced robotic skills. Copyright © 2015 Elsevier Ltd. All rights reserved.

Economic and Technical Feasibility Study of Utility-Scale Wind Generation for the New York Buffalo River and South Buffalo Brownfield Opportunity Areas

DOE Office of Scientific and Technical Information (OSTI.GOV)

Roberts, J. O.; Mosey, G.

2014-04-01

Through the RE-Powering America's Land initiative, the economic and technical feasibility of utilizing contaminated lands in the Buffalo, New York, area for utility-scale wind development is explored. The study found that there is available land, electrical infrastructure, wind resource, and local interest to support a commercial wind project; however, economies of scale and local electrical markets may need further investigation before significant investment is made into developing a wind project at the Buffalo Reuse Authority site.

Geothermal space/water heating for City of Mammoth Lakes, California. Draft final report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sims, A.V.; Racine, W.C.

1977-09-01

The results of a study to determine the technical, economic and environmental feasibility of geothermal district heating for Mammoth Lakes Village, California are presented. The geothermal district heating system selected is technically feasible and uses existing technology in its design and operation. During a preliminary environmental assessment, no potential adverse environmental impacts could be identified of sufficient consequence to preclude the construction and operation of the proposed district heating system. A follow-on program aimed at implementing district heating in Mammoth is outlined.

7 CFR 3401.17 - Review criteria.

Code of Federal Regulations, 2010 CFR

2010-01-01

... Regulations of the Department of Agriculture (Continued) COOPERATIVE STATE RESEARCH, EDUCATION, AND EXTENSION.... Overall scientific and technical quality of proposal 10 2. Scientific and technical quality of the.... Feasibility of attaining objectives; adequacy of professional training and experience, facilities and...

Refurbishment of Railroad Crossties : A Technical and Economic Analysis

DOT National Transportation Integrated Search

1977-12-01

An analysis of the principal modes of failure for wooden railroad crossties was conducted and an evaluation of the technical and economic feasibility of refurbishing these ties was conducted. Among the principal modes of structural deterioration, onl...

Automated water monitor system field demonstration test report. Volume 2: Technical summary

NASA Technical Reports Server (NTRS)

Brooks, R. L.; Jeffers, E. L.; Perreira, J.; Poel, J. D.; Nibley, D.; Nuss, R. H.

1981-01-01

The NASA Automatic Water Monitor System was installed in a water reclamation facility to evaluate the technical and cost feasibility of producing high quality reclaimed water. Data gathered during this field demonstration test are reported.

Technical, economic and environmental feasibility of recycling nutrients in waste in Southern Thailand.

PubMed

Schouw, Nanette Levanius; Bregnhøj, Henrik; Mosbaek, Hans; Tjell, Jens Christian

2003-06-01

Technical, economic and environmental criteria were used to evaluate the feasibility of recycling plant nutrients in kitchen waste, human excreta and sullage from households in Phattalung (urban), Kuan Lang (peri urban) and Prik (rural) in Southern Thailand. The difference in situation and context of the three areas called for individual solutions, and for each area three sanitation systems were evaluated. However, in all three areas recycling human excreta and kitchen waste via composting latrines was found to be more environmental feasible than human excreta managed in septic tanks or sub surface trickle irrigation and kitchen waste disposed of at landfill sites or treated at composting plants. Sullage should in Kuan Lang and Prik be used directly on garden crops, but in Phattalung be treated in waste stabilisation ponds before discharge, to be environmentally feasible. The economic feasibility results varied among the three areas and among the involved stakeholders: farmers and Kuan Lang administration benefited from recycling waste, at the expense of other private users, Phattalung municipality and Prik municipality. The main cause of these conflicting interests was lack of cost recovery and public participation, which should therefore serve as the fundament of any future environmental and economic feasible sanitation system.

Feasibility study: Atmospheric general circulation experiment, volume 2

NASA Technical Reports Server (NTRS)

Homsey, R. J. (Editor)

1981-01-01

The feasibility analysis of the atmospheric general circulation experiment (AGCE) are documented. The analysis performed in each technical area, the rationale and substantiation for the design approaches selected for the hardware, and the design details for the baseline AGCE are presented.

Vessel electrification feasibility study for the New York state canals.

DOT National Transportation Integrated Search

2013-10-01

The objective of this study was to determine the technical and economic feasibility of repowering a diesel-fueled : New York State Canal Corporation (NYSCC) work boat with a diesel hybrid-electric or full-electric powertrain. : The project team instr...

Feasibility of using cellular telephone data to determine the truckshed of intermodal facilities.

DOT National Transportation Integrated Search

2010-03-01

In order to determine the feasibility of using cellular telephone location data in deriving the geographic extent : (truckshed) from intermodal facilities, this study was conducted to determine the feasibility analysis in three aspects: : technology,...

Development and implementation of centralized simulation training: evaluation of feasibility, acceptability and construct validity.

PubMed

Shamim Khan, Mohammad; Ahmed, Kamran; Gavazzi, Andrea; Gohil, Rishma; Thomas, Libby; Poulsen, Johan; Ahmed, Munir; Jaye, Peter; Dasgupta, Prokar

2013-03-01

WHAT'S KNOWN ON THE SUBJECT? AND WHAT DOES THE STUDY ADD?: A competent urologist should not only have effective technical skills, but also other attributes that would make him/her a complete surgeon. These include team-working, communication and decision-making skills. Although evidence for effectiveness of simulation exists for individual simulators, there is a paucity of evidence for utility and effectiveness of these simulators in training programmes that aims to combine technical and non-technical skills training. This article explains the process of development and validation of a centrally coordinated simulation program (Participants - South-East Region Specialist Registrars) under the umbrella of the British Association for Urological Surgeons (BAUS) and the London Deanery. This program incorporated training of both technical (synthetic, animal and virtual reality models) and non-technical skills (simulated operating theatres). To establish the feasibility and acceptability of a centralized, simulation-based training-programme. Simulation is increasingly establishing its role in urological training, with two areas that are relevant to urologists: (i) technical skills and (ii) non-technical skills. For this London Deanery supported pilot Simulation and Technology enhanced Learning Initiative (STeLI) project, we developed a structured multimodal simulation training programme. The programme incorporated: (i) technical skills training using virtual-reality simulators (Uro-mentor and Perc-mentor [Symbionix, Cleveland, OH, USA], Procedicus MIST-Nephrectomy [Mentice, Gothenburg, Sweden] and SEP Robotic simulator [Sim Surgery, Oslo, Norway]); bench-top models (synthetic models for cystocopy, transurethral resection of the prostate, transurethral resection of bladder tumour, ureteroscopy); and a European (Aalborg, Denmark) wet-lab training facility; as well as (ii) non-technical skills/crisis resource management (CRM), using SimMan (Laerdal Medical Ltd, Orpington, UK) to teach team-working, decision-making and communication skills. The feasibility, acceptability and construct validity of these training modules were assessed using validated questionnaires, as well as global and procedure/task-specific rating scales. In total 33, three specialist registrars of different grades and five urological nurses participated in the present study. Construct-validity between junior and senior trainees was significant. Of the participants, 90% rated the training models as being realistic and easy to use. In total 95% of the participants recommended the use of simulation during surgical training, 95% approved the format of the teaching by the faculty and 90% rated the sessions as well organized. A significant number of trainees (60%) would like to have easy access to a simulation facility to allow more practice and enhancement of their skills. A centralized simulation programme that provides training in both technical and non-technical skills is feasible. It is expected to improve the performance of future surgeons in a simulated environment and thus improve patient safety. © 2012 BJU International.

Feasibility and safety of augmented reality-assisted urological surgery using smartglass.

PubMed

Borgmann, H; Rodríguez Socarrás, M; Salem, J; Tsaur, I; Gomez Rivas, J; Barret, E; Tortolero, L

2017-06-01

To assess the feasibility, safety and usefulness of augmented reality-assisted urological surgery using smartglass (SG). Seven urological surgeons (3 board urologists and 4 urology residents) performed augmented reality-assisted urological surgery using SG for 10 different types of operations and a total of 31 urological operations. Feasibility was assessed using technical metadata (number of photographs taken/number of videos recorded/video time recorded) and structured interviews with the urologists on their use of SG. Safety was evaluated by recording complications and grading according to the Clavien-Dindo classification. Usefulness of SG for urological surgery was queried in structured interviews and in a survey. The implementation of SG use during urological surgery was feasible with no intrinsic (technical defect) or extrinsic (inability to control the SG function) obstacles being observed. SG use was safe as no grade 3-5 complications occurred for the series of 31 urological surgeries of different complexities. Technical applications of SG included taking photographs/recording videos for teaching and documentation, hands-free teleconsultation, reviewing patients' medical records and images and searching the internet for health information. Overall usefulness of SG for urological surgery was rated as very high by 43 % and high by 29 % of surgeons. Augmented reality-assisted urological surgery using SG is both feasible and safe and also provides several useful functions for urological surgeons. Further developments and investigations are required in the near future to harvest the great potential of this exciting technology for urological surgery.

Lidar systems for measuring visibility : a technical assessment

DOT National Transportation Integrated Search

1974-09-01

A study has been made of the feasibility of using a laser backscatter system (lidar) to measure slant visibility at airports. This report summarizes the present status of lidar from a technical standpoint. Based largely on the results of experimental...

A Simulation of DNA Sequencing Utilizing 3M Post-It[R] Notes

ERIC Educational Resources Information Center

Christensen, Doug

2009-01-01

An inexpensive and equipment free approach to teaching the technical aspects of DNA sequencing. The activity described requires an instructor with a familiarity of DNA sequencing technology but provides a straight forward method of teaching the technical aspects of sequencing in the absence of expensive sequencing equipment. The final sequence…

General Circulation Model Output for Forest Climate Change Research and Applications

Treesearch

Ellen J. Cooter; Brian K. Eder; Sharon K. LeDuc; Lawrence Truppi

1993-01-01

This report reviews technical aspects of and summarizes output from four climate models. Recommendations concerning the use of these outputs in forest impact assessments are made. This report reviews technical aspects of and summarizes output from four climate models. Recommendations concerning the use of these outputs in forest impact assessments are made.

Technical and Non-Technical Programme Students' Attitudes and Reasons for Plagiarism

ERIC Educational Resources Information Center

Harji, Madhubala Bava; Ismail, Zalina; Chetty, Thiba Naraina; Letchumanan, Krishnaveni

2017-01-01

To date, plagiarism continues to be a widespread problem in higher education. Deemed to be endemic, researchers continue to examine various aspects of plagiarism, including students' perception, practices, attitudes and reasons for plagiarism, in addressing this growing concern. Most studies, however, tend to examine these aspects independently.…

Catheter Ablation of Focal Atrial Tachycardia Using Remote Magnetic Navigation.

PubMed

Webster, Mark; Pasupati, Sanjeevan; Lever, Nigel; Stiles, Martin

2018-05-01

This first-in-human study evaluated the safety and technical feasibility of the Tempo temporary cardiac pacing lead (BioTrace Medical), which includes a novel fixation mechanism and soft tip. Complications of temporary pacing leads include dislodgment, arrhythmias, and ventricular perforation. Temporary pacing applications have increased with transcatheter aortic valve replacement (TAVR) growth, for rapid pacing during balloon valvuloplasty (BAV) and valve deployment, and for periprocedural bradyarrhythmia support. Eligible patients required temporary pacing for TAVR, BAV, or electrophysiology (EP) procedures. Transthoracic echocardiograms were obtained at baseline and 24 hours after lead removal. Safety was defined as freedom from pericardial effusion requiring intervention or evidence of tamponade. Technical feasibility involved successful intracardiac delivery and pace capture. Additional evaluations included pacing threshold (PCT), rapid pacing, dislodgment, or sustained ventricular arrhythmias. Follow-up was to 30 days. Twenty-five patients (60% female; mean age, 64 ± 19 years) underwent 13 TAVRs (7 Sapien 3 valves [Edwards Lifesciences], 4 CoreValves [Medtronic], and 2 Lotus valves [Boston Scientific]), 11 EP procedures, and 1 BAV at two New Zealand centers from January 2016 to June 2016. Safety was met in all patients, with no device-related adverse events. Technical feasibility was achieved in 23 cases (92%); 2 patients had unsuitable anatomy. No patient had lead dislodgment or sustained ventricular arrhythmias, and the final procedural PCT was 0.7 ± 0.5 mA. Rapid pacing was successful in all cases. Five patients had successful postprocedural use up to 5 days. This first-in-human study demonstrates the safety and technical feasibility of the Tempo lead, providing stable periprocedural temporary pacing support.

Simulation-based ureteroscopy skills training curriculum with integration of technical and non-technical skills: a randomised controlled trial.

PubMed

Brunckhorst, Oliver; Shahid, Shahab; Aydin, Abdullatif; McIlhenny, Craig; Khan, Shahid; Raza, Syed Johar; Sahai, Arun; Brewin, James; Bello, Fernando; Kneebone, Roger; Khan, Muhammad Shamim; Dasgupta, Prokar; Ahmed, Kamran

2015-09-01

Current training modalities within ureteroscopy have been extensively validated and must now be integrated within a comprehensive curriculum. Additionally, non-technical skills often cause surgical error and little research has been conducted to combine this with technical skills teaching. This study therefore aimed to develop and validate a curriculum for semi-rigid ureteroscopy, integrating both technical and non-technical skills teaching within the programme. Delphi methodology was utilised for curriculum development and content validation, with a randomised trial then conducted (n = 32) for curriculum evaluation. The developed curriculum consisted of four modules; initially developing basic technical skills and subsequently integrating non-technical skills teaching. Sixteen participants underwent the simulation-based curriculum and were subsequently assessed, together with the control cohort (n = 16) within a full immersion environment. Both technical (Time to completion, OSATS and a task specific checklist) and non-technical (NOTSS) outcome measures were recorded with parametric and non-parametric analyses used depending on the distribution of our data as evaluated by a Shapiro-Wilk test. Improvements within the intervention cohort demonstrated educational value across all technical and non-technical parameters recorded, including time to completion (p < 0.01), OSATS scores (p < 0.001), task specific checklist scores (p = 0.011) and NOTSS scores (p < 0.001). Content validity, feasibility and acceptability were all demonstrated through curriculum development and post-study questionnaire results. The current developed curriculum demonstrates that integrating both technical and non-technical skills teaching is both educationally valuable and feasible. Additionally, the curriculum offers a validated simulation-based training modality within ureteroscopy and a framework for the development of other simulation-based programmes.

Surgical timing after chemoradiotherapy for rectal cancer, analysis of technique (STARRCAT): results of a feasibility multi-centre randomized controlled trial.

PubMed

Foster, J D; Ewings, P; Falk, S; Cooper, E J; Roach, H; West, N P; Williams-Yesson, B A; Hanna, G B; Francis, N K

2016-10-01

The optimal time of rectal resection after long-course chemoradiotherapy (CRT) remains unclear. A feasibility study was undertaken for a multi-centre randomized controlled trial evaluating the impact of the interval after chemoradiotherapy on the technical complexity of surgery. Patients with rectal cancer were randomized to either a 6- or 12-week interval between CRT and surgery between June 2012 and May 2014 (ISRCTN registration number: 88843062). For blinded technical complexity assessment, the Observational Clinical Human Reliability Analysis technique was used to quantify technical errors enacted within video recordings of operations. Other measured outcomes included resection completeness, specimen quality, radiological down-staging, tumour cell density down-staging and surgeon-reported technical complexity. Thirty-one patients were enrolled: 15 were randomized to 6 and 16-12 weeks across 7 centres. Fewer eligible patients were identified than had been predicted. Of 23 patients who underwent resection, mean 12.3 errors were observed per case at 6 weeks vs. 10.7 at 12 weeks (p = 0.401). Other measured outcomes were similar between groups. The feasibility of measurement of operative performance of rectal cancer surgery as an endpoint was confirmed in this exploratory study. Recruitment of sufficient numbers of patients represented a challenge, and a proportion of patients did not proceed to resection surgery. These results suggest that interval after CRT may not substantially impact upon surgical technical performance.

Conceptual design study of a coal gasification combined-cycle powerplant for industrial cogeneration

NASA Astrophysics Data System (ADS)

Bloomfield, H. S.; Nelson, S. G.; Straight, H. F.; Subramaniam, T. K.; Winklepleck, R. G.

1981-03-01

A conceptual design study was conducted to assess technical feasibility, environmental characteristics, and economics of coal gasification. The feasibility of a coal gasification combined cycle cogeneration powerplant was examined in response to energy needs and to national policy aimed at decreasing dependence on oil and natural gas. The powerplant provides the steam heating and baseload electrical requirements while serving as a prototype for industrial cogeneration and a modular building block for utility applications. The following topics are discussed: (1) screening of candidate gasification, sulfur removal and power conversion components; (2) definition of a reference system; (3) quantification of plant emissions and waste streams; (4) estimates of capital and operating costs; and (5) a procurement and construction schedule. It is concluded that the proposed powerplant is technically feasible and environmentally superior.

Conceptual design study of a coal gasification combined-cycle powerplant for industrial cogeneration

NASA Technical Reports Server (NTRS)

Bloomfield, H. S.; Nelson, S. G.; Straight, H. F.; Subramaniam, T. K.; Winklepleck, R. G.

1981-01-01

A conceptual design study was conducted to assess technical feasibility, environmental characteristics, and economics of coal gasification. The feasibility of a coal gasification combined cycle cogeneration powerplant was examined in response to energy needs and to national policy aimed at decreasing dependence on oil and natural gas. The powerplant provides the steam heating and baseload electrical requirements while serving as a prototype for industrial cogeneration and a modular building block for utility applications. The following topics are discussed: (1) screening of candidate gasification, sulfur removal and power conversion components; (2) definition of a reference system; (3) quantification of plant emissions and waste streams; (4) estimates of capital and operating costs; and (5) a procurement and construction schedule. It is concluded that the proposed powerplant is technically feasible and environmentally superior.

25 CFR 41.6 - HHS participation.

Code of Federal Regulations, 2011 CFR

2011-04-01

... Director of Education in the development of plans, procedures, and criteria for feasibility studies under this subpart, and to provide the Director with technical assistance in conducting such feasibility studies, including determinations as to the reasonable number of students required to support a Community...

Final contract report : real-time EMS helicopter video feasibility study

DOT National Transportation Integrated Search

2001-11-01

The purpose of this project was to determine whether the use of ground-based video imaging by local rescue squad personnel and Pegasus medical staff is technically and organizationally feasible as a tool to improve pre-hospital care provided to crash...

Improved Anvil Forecasting

NASA Technical Reports Server (NTRS)

Lambert, Winifred C.

2000-01-01

This report describes the outcome of Phase 1 of the AMU's Improved Anvil Forecasting task. Forecasters in the 45th Weather Squadron and the Spaceflight Meteorology Group have found that anvil forecasting is a difficult task when predicting LCC and FR violations. The purpose of this task is to determine the technical feasibility of creating an anvil-forecasting tool. Work on this study was separated into three steps: literature search, forecaster discussions, and determination of technical feasibility. The literature search revealed no existing anvil-forecasting techniques. However, there appears to be growing interest in anvils in recent years. If this interest continues to grow, more information will be available to aid in developing a reliable anvil-forecasting tool. The forecaster discussion step revealed an array of methods on how better forecasting techniques could be developed. The forecasters have ideas based on sound meteorological principles and personal experience in forecasting and analyzing anvils. Based on the information gathered in the discussions with the forecasters, the conclusion of this report is that it is technically feasible at this time to develop an anvil forecasting technique that will significantly contribute to the confidence in anvil forecasts.

White Earth Biomass/Biogas Feasibility Study

DOE Office of Scientific and Technical Information (OSTI.GOV)

Triplett, Michael

2015-03-12

The White Earth Nation examined the feasibility of cost savings and fossil energy reduction through the installation of biogas/biomass boiler at the tribal casino. The study rejected biogas options due to availability and site constraints, but found a favorable environment for technical and financial feasibility of installing a 5 MMBtu hot water boiler system to offset 60-70 percent of current fuel oil and propane usage.

Streamlining Software Aspects of Certification: Technical Team Report on the First Industry Workshop

NASA Technical Reports Server (NTRS)

Hayhurst, Kelly J.; Holloway, C. Michael; Knight, John C.; Leveson, Nancy G.; Yang, Jeffrey C.; Dorsey, Cheryl A.; McCormick, G. Frank

1998-01-01

To address concerns about time and expense associated with software aspects of certification, the Federal Aviation Administration (FAA) began the Streamlining Software Aspects of Certification (SSAC) program. As part of this program, a Technical Team was established to determine whether the cost and time associated with certifying aircraft can be reduced while maintaining or improving safety, with the intent of impacting the FAA's Flight 2000 program. The Technical Team conducted a workshop to gain a better understanding of the major concerns in industry about software cost and schedule. Over 120 people attended the workshop, including representatives from the FAA,commercial transport and general aviation aircraft manufacturers and suppliers, and procurers and developers of non-airborne systems; and, more than 200 issues about software aspects of certification were recorded. This paper provides an overview of the SSAC program, motivation for the workshop, details of the workshop activities and outcomes, and recommendations for follow-on work.

Students’ Perception on Teaching Practicum Evaluation using Video Technology

NASA Astrophysics Data System (ADS)

Chee Sern, Lai; ‘Ain Helan Nor, Nurul; Foong, Lee Ming; Hassan, Razali

2017-08-01

Video technology has been widely used in education especially in teaching and learning. However, the use of video technology for evaluation purpose especially in teaching practicum is extremely scarce and the benefits of video technology in teaching practicum evaluation have not yet been fully discovered. For that reason, this quantitative research aimed at identifying the perceptions of trainee teachers towards teaching practicum evaluation via video technology. A total of 260 students of Teacher Certification Programme (Program Pensiswazahan Guru - PPG) from the Faculty of Technical and Vocational Education (FPTV) of Universiti Tun Hussein Onn Malaysia (UTHM) had been randomly selected as respondents. A set of questionnaire was developed to assess the suitability, effectiveness and satisfaction of using video technology for teaching practicum. Conclusively, this research showed that the trainee teachers have positive perceptions in all three aspects related teaching practicum evaluation using video technology. Apart from that, no significant racial difference was found in the measured aspects. In addition, the trainee teachers also showed an understanding of the vast importance of teaching practicum evaluation via video. These research findings suggest that video technology can be a feasible and practical means of teaching practicum evaluation especially for distance learning program.

Electromagnetic image-guided orbital decompression: technique, principles, and preliminary experience with 6 consecutive cases.

PubMed

Servat, Juan J; Elia, Maxwell Dominic; Gong, Dan; Manes, R Peter; Black, Evan H; Levin, Flora

2014-12-01

To assess the feasibility of routine use of electromagnetic image guidance systems in orbital decompression. Six consecutive patients underwent stereotactic-guided three wall orbital decompression using the novel Fusion ENT Navigation System (Medtronic), a portable and expandable electromagnetic guidance system with multi-instrument tracking capabilities. The system consists of the Medtronic LandmarX System software-enabled computer station, signal generator, field-generating magnet, head-mounted marker coil, and surgical tracking instruments. In preparation for use of the LandmarX/Fusion protocol, all patients underwent preoperative non-contrast CT scan from the superior aspect of the frontal sinuses to the inferior aspect of the maxillary sinuses that includes the nasal tip. The Fusion ENT Navigation System (Medtronic™) was used in 6 patients undergoing maximal 3-wall orbital decompression for Graves' orbitopthy after a minimum of six months of disease inactivity. Preoperative Hertel exophthalmometry measured more than 27 mm in all patients. The navigation system proved to be no more difficult technically than the traditional orbital decompression approach. Electromagnetic image guidance is a stereotactic surgical navigation system that provides additional intraoperative flexibility in orbital surgery. Electromagnetic image-guidance offers the ability to perform more aggressive orbital decompressions with reduced risk.

Off-road axle detection sensor (ORADS) : occlusion feasibility study, final technical report, 27 August, 1997.

DOT National Transportation Integrated Search

1997-08-27

The work accomplished under this initiative is in direct relation to the development effort proposed by Spectra : Research, Inc. (S*R) for an "Off-Road Axle Detection Sensor (ORADS)". The feasibility study was performed to : investigate potential occ...

Organic Waste Diversion in Columbia, South Carolina, Feasibility Study

EPA Science Inventory

The study found that a variety of methods are technically and economically feasible for diverting food wastes and providing a positive return on investment for the source. Potential barriers and considerations for food waste diversion are identified in the study. Given the E...

Water reuse in the Apatlaco River Basin (México): a feasibility study.

PubMed

Moeller-Chávez, G; Seguí-Amórtegui, L; Alfranca-Burriel, O; Escalante-Estrada, V; Pozo-Román, F; Rivas-Hernández, A

2004-01-01

The aim of this work is to determine the technical and economic feasibility of implementing different reclamation and reuse projects that improve the quality of the Apatlaco river basin located in the central part of Mexico. A special methodology based on a decision support system was developed. This methodology allows to decide if it is convenient or not to finance a reclamation or reuse project for the most common water uses in the basin. This methodology is based on the net present value criteria (NPV) of the effective cash flow during the useful life of the project. The results obtained reveal a technical and economical feasibility for industrial reuse in Jiutepec and for agricultural reuse in Zacatepec and Emiliano Zapata. On the other hand, sanitation projects are not feasible in all cases analyzed. Therefore, Mexican Regulation (Ley Federal de Derechos en Materia de Agua) as currently implemented, does not promote and support this kind of projects.

Technical feasibility and revision efficacy of the sequential deployment of endoscopic bilateral side-by-side metal stents for malignant hilar biliary strictures: a multicenter prospective study.

PubMed

Lee, Tae Hoon; Park, Do Hyun; Lee, Sang Soo; Choi, Hyun Jong; Lee, Jun Kyu; Kim, Tae Hyeon; Kim, Jong Hyeok; Jeong, Seok; Park, Sang-Heum; Moon, Jong Ho

2013-02-01

Theoretically, the side-by-side bilateral placement of metal stents may be technically easier than stent-in-stent bilateral placement in stent revision. However, side-by-side placement can be technically challenging, as the deployment of the first stent can preclude the passage of the second stent. We explored the technical feasibility and revision efficacy of endoscopic bilateral side-by-side stent placement for malignant hilar biliary strictures. Forty-four patients with Bismuth type II or higher malignant hilar biliary strictures were enrolled in seven academic tertiary referral centers. Endoscopic placement of side-by-side bilateral metal stents with 7F thin delivery shaft was performed. The outcome measurements were the technical and functional success, adverse events, endoscopic revision success rate, and stent patency. Overall, the technical and functional success rates were 91 % (40/44), and 98 % (39/40), respectively. Two of the failed patients were converted successfully with subsequent contralateral stent-in-stent placement, and the other patients underwent percutaneous intervention. Early stent-related adverse events occurred in 10 %. The endoscopic revision rate due to stent malfunction during follow-up (median: 180 days) was 45 % (18/40; tumor ingrowth in 4 and in-stent sludge impaction/stone formation in 14 patients). The endoscopic revision success rate was 92 % (12/13). Five patients with comorbidity underwent initial percutaneous intervention. The median survival and stent patency periods were 180 and 157 days, respectively. The sequential placement of a metal stent with a 7F thin delivery shaft in bilateral side-by-side procedures may be feasible and effective for malignant hilar biliary strictures and for endoscopic stent revision.

Economic Viability of Brewery Spent Grain as a Biofuel

DOE Office of Scientific and Technical Information (OSTI.GOV)

Morrow, Charles

This report summarizes an investigation into the technical feasibility and economic viability of use grain wastes from the beer brewing process as fuel to generate the heat needed in subsequent brewing process. The study finds that while use of spent grain as a biofuel is technically feasible, the economics are not attractive. Economic viability is limited by the underuse of capital equipment. The investment in heating equipment requires a higher utilization that the client brewer currently anticipates. It may be possible in the future that changing factors may swing the decision to a more positive one.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Adhikari, B.; Pellegrino, J.; Stickel, J.

We are currently evaluating the feasibility of performing continuous enzymatic hydrolysis of lignocellulosic biomass to product sugars using a membrane-assisted reaction/separation process. The overarching technical goals are to continuously remove the sugars—this lowers product feedback inhibition—retain and recycle active enzyme, and continuously recover the co-product of lignin. Experimental d d d currently evaluating the feasibility of performing continuous enzymatic hydrolysis of lignocellulosic biomass to product sugars using a membrane-assisted reaction/separation process. The overarching technical goals are to continuously remove the sugars -- this lowers product feedback inhibition --retain and recycle active enzyme, and continuously recover the co-product of lignin.

Integral Engine Inlet Particle Separator. Volume 2. Design Guide

DTIC Science & Technology

1975-08-01

herein will be used in the design of integral inlet particle separators for future Army aircraft gas turbine engines . Apprupriate technical personnel...OF INTEGRAL GAS TURBINE ENGINE SOLID PARTICLE INLET SEPARATORS, PHASE I, FEASIBILITY STUDY AND DESIGN, Pratt and Whitney Aircraft ; USAAVLABS Technical...USAAVLABS Technical Report 70-36, U.S. Army Aviation Materiel Laboratories, Fort Eustis, Virginia, August 1970 AD 876 584. 13. ENGINES , AIRCRAFT

Multi-Purpose Thermal Hydraulic Loop: Advanced Reactor Technology Integral System Test (ARTIST) Facility for Support of Advanced Reactor Technologies

DOE Office of Scientific and Technical Information (OSTI.GOV)

James E. O'Brien; Piyush Sabharwall; SuJong Yoon

2001-11-01

Effective and robust high temperature heat transfer systems are fundamental to the successful deployment of advanced reactors for both power generation and non-electric applications. Plant designs often include an intermediate heat transfer loop (IHTL) with heat exchangers at either end to deliver thermal energy to the application while providing isolation of the primary reactor system. In order to address technical feasibility concerns and challenges a new high-temperature multi-fluid, multi-loop test facility “Advanced Reactor Technology Integral System Test facility” (ARTIST) is under development at the Idaho National Laboratory. The facility will include three flow loops: high-temperature helium, molten salt, and steam/water.more » Details of some of the design aspects and challenges of this facility, which is currently in the conceptual design phase, are discussed« less

Smart electronics and microengineering: the Australian focus

NASA Astrophysics Data System (ADS)

Hariz, Alex

1998-04-01

Integrated MEMS together with signal-conditioning electronics on the same chip appears to be the ultimate solution to realizing smart computer devices integratable into larger systems. This in principle will lead to systems with decentralized intelligence leading to applications in numerous fields. It is conceived that such devices would be the product of merging two mature technologies, that of microsensors and that of IC manufacture which is enjoying a well established success. Using common and suitable materials it is reasonable to expect a high degree of compatibility with little modification to standard processes. The various aspects of this co-integration will be analyzed and factors critical to the viability of the process, that go beyond mere technical feasibility will be highlighted. Australian research in this area is strong and continues to grow. We will pinpoint opportunities and constraints to the promising prospect of smart electronics and MEMS.

Superconducting magnets for traveling-wave maser application. Technical documentary report, Oct 1960--Mar 1962

DOE Office of Scientific and Technical Information (OSTI.GOV)

Okwit, S.; Siegel, K.; Smith, J.G.

1962-09-01

Results of an investigation to determine the feasibility of incorporating superconducting magnet techniques in the design of traveling-wave maser systems are reported. Several different types of magnet configurations were investigated: isomagnets, Helmholtz coils, modified Helmholtz coils, air-core solenoids, and magnetic end-loaded air-core solenoids. The magnetic end-loaded air-core solenoid was found to be the best configuration for the S-band maser under consideration. This technique yielded relatively large regions of field homogeneity with relatively small aspect ratios (length of solenoid/diameter of solenoid). Several small-scale models of full-length superconducting magnets and foreshortened end-loaded superconducting magnets were constructed using un-annealed niobium wire. Measurements havemore » shown that these magnets were adequate for traveling-wave maser applications that require magnetic fields up to 2,200 G and marginal for magnetic fields up to 2,500 G.« less

Impact of novel energy sources: OTEC, wind, goethermal, biomass

NASA Technical Reports Server (NTRS)

Roberts, A. S., Jr.

1978-01-01

Alternate energy conversion methods such as ocean thermal energy conversion (OTEC), wind power, geothermal wells and biomass conversion are being explored, and re-examined in some cases, for commercial viability. At a time when United States fossil fuel and uranium resources are found to be insufficient to supply national needs into the twenty-first century, it is essential to broaden the base of feasible energy conversion technologies. The motivations for development of these four alternative energy forms are established. Primary technical aspects of OTEC, wind, geothermal and biomass energy conversion systems are described along with a discussion of relative advantages and disadvantages of the concepts. Finally, the sentiment is voiced that each of the four systems should be developed to the prototype stage and employed in the region of the country and in the sector of economy which is complimentary to the form of system output.

Materials and structure synergistic with in-space materials utilization. [as means of reducing costs of space missions, colonization, and settlements

NASA Technical Reports Server (NTRS)

Ramohalli, Kumar; Shadman, Farhang; Sridhar, K. R.

1992-01-01

The significant advances made recently toward actual hardware realizations of various concepts for the application of in-space materials utilization (ISMU) are demonstrated. The overall plan for taking innovative concepts through technical feasibility, small-scale tests, scale-up, computer modeling, and larger-scale execution is outlined. Two specific fields of endeavor are surveyed: one has direct applications to construction on the moon, while the other has more basic implications, in addition to the practical aspects of lunar colonies. Several fundamental scientific advances made in the characterization of the physical and chemical processes that need to be elucidated for any intelligent application of the ISMU concepts in future space missions are described. A rigorous quantitative technique for the unambiguous evaluation of various components and component technology that form any space (or terrestrial mission) is also described.

Options and processes for spent catalyst handling and utilization.

PubMed

Marafi, M; Stanislaus, A

2003-07-18

The quantity of spent hydroprocessing catalysts discarded as solid wastes in the petroleum refining industries has increased remarkably in recent years due to a rapid growth in the hydroprocessing capacity to meet the rising demand for low-sulfur fuels. Due to their toxic nature, spent hydroprocessing catalysts have been branded as hazardous wastes, and the refiners are experiencing pressure from environmental authorities to handle them safely. Several alternative methods such as reclamation of metals, rejuvenation and reuse, disposal in landfills and preparation of useful materials using spent catalysts as raw materials are available to deal with the spent catalyst problem. The technical feasibility as well as the environmental and economic aspects of these options are reviewed. In addition, details of two bench-scale processes, one for rejuvenation of spent hydroprocessing catalysts, and the other for producing non-leachable synthetic aggregate materials that were developed in this laboratory, are presented in this paper.

Multimedia telehomecare system using standard TV set.

PubMed

Guillén, S; Arredondo, M T; Traver, V; García, J M; Fernández, C

2002-12-01

Nowadays, there are a very large number of patients that need specific health support at home. The deployment of broadband communication networks is making feasible the provision of home care services with a proper quality of service. This paper presents a telehomecare multimedia platform that runs over integrated services digital network and internet protocol using videoconferencing standards H.320 and H.323, and standard TV set for patient interaction. This platform allows online remote monitoring: ECG, heart sound, blood pressure. Usability, affordability, and interoperability were considered for the design and development of its hardware and software components. A first evaluation of technical and usability aspects were carried forward with 52 patients of a private clinic and 10 students in the University. Results show a high rate (mean = 4.33, standard deviation--SD = 1.63 in a five-points Likert scale) in the global perception of users on the quality of images, voice, and feeling of virtual presence.

Use of Synthetic Osteochondral Implants to Treat Bilateral Shoulder Osteochondritis Dissecans in a Dog.

PubMed

Danielski, Alan; Farrell, Michael

2018-06-20

 An 8-month-old American Bulldog was presented for assessment of bilateral thoracic limb lameness. Computed tomographic imaging revealed large, deep osteochondritis dissecans lesions in both humeral heads.  The osteochondritis dissecans lesions were debrided and the exposed subchondral defects were prepared to receive synthetic grafts. Circular implants consisting of a surface layer of polycarbonate urethane and a deep layer of lattice-type titanium were implanted into the osteochondral defects to reconstruct the articular surface topography. Follow-up clinical examination 1.5, 3 and 9months postoperatively revealed a lack of signs of shoulder pain and resolution of thoracic limb lameness. Nine-month follow-up radiographs showed radiographic evidence of osteointegration of both implants.  Synthetic osteochondral implantation in the caudocentral aspect of the humeral head appeared technically feasible and effective in resolving lameness caused by humeral head osteochondritis dissecans. Schattauer GmbH Stuttgart.

Economic analysis of transmission line engineering based on industrial engineering

NASA Astrophysics Data System (ADS)

Li, Yixuan

2017-05-01

The modern industrial engineering is applied to the technical analysis and cost analysis of power transmission and transformation engineering. It can effectively reduce the cost of investment. First, the power transmission project is economically analyzed. Based on the feasibility study of power transmission and transformation project investment, the proposal on the company system cost management is put forward through the economic analysis of the effect of the system. The cost management system is optimized. Then, through the cost analysis of power transmission and transformation project, the new situation caused by the cost of construction is found. It is of guiding significance to further improve the cost management of power transmission and transformation project. Finally, according to the present situation of current power transmission project cost management, concrete measures to reduce the cost of power transmission project are given from the two aspects of system optimization and technology optimization.

Status of ERA Airframe Technology Demonstrators

NASA Technical Reports Server (NTRS)

Davis, Pamela; Jegley, Dawn; Rigney, Tom

2015-01-01

NASA has created the Environmentally Responsible Aviation (ERA) Project to explore and document the feasibility, benefits and technical risk of advanced vehicle configurations and enabling technologies that will reduce the impact of aviation on the environment. A critical aspect of this pursuit is the development of a lighter, more robust airframe that will enable the introduction of unconventional aircraft configurations that have higher lift-to-drag ratios, reduced drag, and lower community noise. The Airframe Technology subproject contains two elements. Under the Damage Arresting Composite Demonstration an advanced material system is being explored which will lead to lighter airframes that are more structural efficient than the composites used in aircraft today. Under the Adaptive Compliant Trailing Edge Flight Experiment a new concept of a flexible wing trailing edge is being evaluated which will reduce weight and improve aerodynamic performance. This presentation will describe the development these two airframe technologies.

Sodium-NaK engineering handbook. Volume III. Sodium systems, safety, handling, and instrumentation. [LMFBR

DOE Office of Scientific and Technical Information (OSTI.GOV)

Foust, O J

1978-01-01

The handbook is intended for use by present and future designers in the Liquid Metals Fast Breeder Reactor (LMFBR) Program and by the engineering and scientific community performing other type investigation and exprimentation requiring high-temperature sodium and NaK technology. The arrangement of subject matter progresses from a technological discussion of sodium and sodium--potassium alloy (NaK) to discussions of varius categories and uses of hardware in sodium and NaK systems. Emphasis is placed on sodium and NaK as heat-transport media. Sufficient detail is included for basic understanding of sodium and NaK technology and of technical aspects of sodium and NaK componentsmore » and instrument systems. Information presented is considered adequate for use in feasibility studies and conceptual design, sizing components and systems, developing preliminary component and system descriptions, identifying technological limitations and problem areas, and defining basic constraints and parameters.« less

Pre-clinical research in small animals using radiotherapy technology--a bidirectional translational approach.

PubMed

Tillner, Falk; Thute, Prasad; Bütof, Rebecca; Krause, Mechthild; Enghardt, Wolfgang

2014-12-01

For translational cancer research, pre-clinical in-vivo studies using small animals have become indispensable in bridging the gap between in-vitro cell experiments and clinical implementation. When setting up such small animal experiments, various biological, technical and methodical aspects have to be considered. In this work we present a comprehensive topical review based on relevant publications on irradiation techniques used for pre-clinical cancer research in mice and rats. Clinical radiotherapy treatment devices for the application of external beam radiotherapy and brachytherapy as well as dedicated research irradiation devices are feasible for small animal irradiation depending on the animal model and the experimental goals. In this work, appropriate solutions for the technological transfer of human radiation oncology to small animal radiation research are summarised. Additionally, important information concerning the experimental design is provided such that reliable and clinically relevant results can be attained. Copyright © 2014. Published by Elsevier GmbH.

Feasibility of mining lunar resources for earth use: Circa 2000 AD. Volume 1: Summary

NASA Technical Reports Server (NTRS)

Nishioka, K.; Arno, R. D.; Alexander, A. D.; Slye, R. E.

1973-01-01

The feasibility of obtaining lunar minerals for terrestrial uses is examined. Preliminary results gave indications that it will not be economically feasible to mine, refine, and transport lunar materials to Earth for consumption. A broad systems approach was used to analyze the problem. It was determined that even though the procedure was not economically advisable, the concept for the operations is technically sound.

Technical Note for 8D Likelihood Effective Higgs Couplings Extraction Framework in the Golden Channel

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chen, Yi; Di Marco, Emanuele; Lykken, Joe

2014-10-17

In this technical note we present technical details on various aspects of the framework introduced in arXiv:1401.2077 aimed at extracting effective Higgs couplings in themore » $$h\\to 4\\ell$$ `golden channel'. Since it is the primary feature of the framework, we focus in particular on the convolution integral which takes us from `truth' level to `detector' level and the numerical and analytic techniques used to obtain it. We also briefly discuss other aspects of the framework.« less

Heads-up 3D Microscopy: An Ergonomic and Educational Approach to Microsurgery

PubMed Central

Mendez, Bernardino M.; Chiodo, Michael V.; Vandevender, Darl

2016-01-01

Summary: Traditional microsurgery can lead surgeons to use postures that cause musculoskeletal fatigue, leaving them more prone to work-related injuries. A new technology from TrueVision transmits the microscopic image onto a 3-dimensional (3D) monitor, allowing surgeons to operate while sitting/standing in a heads-up position. The purpose of this study was to evaluate the feasibility of performing heads-up 3D microscopy as a more ergonomic alternative to traditional microsurgery. A feasibility study was conducted comparing heads-up 3D microscopy and traditional microscopy by performing femoral artery anastomoses on 8 Sprague-Dawley rats. Operative times and patency rates for each technology were compared. The 8 microsurgeons completed a questionnaire comparing image quality, comfort, technical feasibility, and educational value of the 2 technologies. Rat femoral artery anastomoses were successfully carried out by all 8 microsurgeons with each technology. There was no significant difference in anastomosis time between heads-up 3D and traditional microscopy (average times, 34.5 and 33.8 minutes, respectively; P = 0.66). Heads-up 3D microscopy was rated superior in neck and back comfort by 75% of participants. Image resolution, field of view, and technical feasibility were found to be superior or equivalent in 75% of participants, whereas 63% evaluated depth perception to be superior or equivalent. Heads-up 3D microscopy is a new technology that improves comfort for the microsurgeon without compromising image quality or technical feasibility. Its use has become prevalent in the field of ophthalmology and may also have utility in plastic and reconstructive surgery. PMID:27579241

78 FR 31976 - Bureau of Labor Statistics Technical Advisory Committee; Notice of Meeting and Agenda

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-28

... DEPARTMENT OF LABOR Bureau of Labor Statistics Bureau of Labor Statistics Technical Advisory Committee; Notice of Meeting and Agenda The Bureau of Labor Statistics Technical Advisory Committee will... Labor Statistics (BLS) on technical aspects of the collection and formulation of economic measures. The...

77 FR 27252 - Bureau of Labor Statistics Technical Advisory Committee; Notice of Meeting and Agenda

Federal Register 2010, 2011, 2012, 2013, 2014

2012-05-09

... DEPARTMENT OF LABOR Bureau of Labor Statistics Bureau of Labor Statistics Technical Advisory Committee; Notice of Meeting and Agenda The Bureau of Labor Statistics Technical Advisory Committee will... Labor Statistics (BLS) on technical aspects of the collection and formulation of economic measures. The...

Wind Fins: Novel Lower-Cost Wind Power System

DOE Office of Scientific and Technical Information (OSTI.GOV)

David C. Morris; Dr. Will D. Swearingen

This project evaluated the technical feasibility of converting energy from the wind with a novel “wind fin” approach. This patent-pending technology has three major components: (1) a mast, (2) a vertical, hinged wind structure or fin, and (3) a power takeoff system. The wing structure responds to the wind with an oscillating motion, generating power. The overall project goal was to determine the basic technical feasibility of the wind fin technology. Specific objectives were the following: (1) to determine the wind energy-conversion performance of the wind fin and the degree to which its performance could be enhanced through basic designmore » improvements; (2) to determine how best to design the wind fin system to survive extreme winds; (3) to determine the cost-effectiveness of the best wind fin designs compared to state-of-the-art wind turbines; and (4) to develop conclusions about the overall technical feasibility of the wind fin system. Project work involved extensive computer modeling, wind-tunnel testing with small models, and testing of bench-scale models in a wind tunnel and outdoors in the wind. This project determined that the wind fin approach is technically feasible and likely to be commercially viable. Project results suggest that this new technology has the potential to harvest wind energy at approximately half the system cost of wind turbines in the 10kW range. Overall, the project demonstrated that the wind fin technology has the potential to increase the economic viability of small wind-power generation. In addition, it has the potential to eliminate lethality to birds and bats, overcome public objections to the aesthetics of wind-power machines, and significantly expand wind-power’s contribution to the national energy supply.« less

Treatment of Biliary Stricture After Live Donor Liver Transplantation With Combined Metal and Plastic Stent Insertion: A Feasibility and Safety Study.

PubMed

Parlak, Erkan; Koksal, Aydin Seref; Eminler, Ahmet Tarik; Toka, Bilal; Uslan, Mustafa Ihsan

2017-08-01

Fully covered self-expandable metal stents (Fc-SEMSs) have a challenging use in the treatment of anastomosis strictures after live donor liver transplantation (LDLT) because they can occlude secondary branch biliary ducts when placed above the biliary bifurcation. In this study, we evaluated the technical feasibility and safety of combining Fc-SEMSs with plastic stent(s) inserted to the secondary branch biliary ducts for the treatment of anastomosis stricture after LDLT. The study group included 22 patients (12 men, aged 51±11 years) with anastomotic biliary stricture after LDLT. A Fc-SEMS, 8 to 10 mm in diameter, was inserted to the straight, dilated main duct and plastic stent(s) were inserted to the secondary branches to avoid their occlusion. Stents were left in place for 2 months and removed with a stent retrieving forceps. Technical feasibilities, including technical success, successful removal, and adverse events of this novel strategy, were evaluated. Fc-SEMSs were successfuly deployed and removed in all of the cases. Three (13.6%) patients had pain requiring intravenous analgesia and Fc-SEMS had to be removed because of unbearable pain in one of them. Three (13.6%) patients developed cholangitis due to occlusion of unrecognized secondary branch biliary ducts. Primary stricture resolution rate was achieved in 17 (89.5%) of 19 patients. Recurrence was observed in 3 (17.6%) patients after a mean follow-up duration of 154.3±52.6 (range, 104-304) days. Combination of Fc-SEMS and plastic stent(s) is technically feasible and safe for the treatment of anastomotic biliary strictures after LDLT.

Vermont Technical Education Commission Report.

ERIC Educational Resources Information Center

Vermont State Technical Education Commission, Montpelier.

A 1968 New England Regional Commission grant to the Vermont Department of Administration financed a feasibility study for a technical college at the postsecondary level. The commission undertook two specific studies: an examination of ultimate career destinations of Vermont secondary students and a survey of Vermont industry to determine immediate…

Factors Affecting Training Effectiveness in Synchronous, Dispersed Virtual Environments

DTIC Science & Technology

2014-06-01

technology to its technical training programs. Specifically, a distance learning model with instruction provided through 3-D virtual worlds could...ABSTRACT The U.S. Navy is investigating the feasibility of incorporating distance learning technology to its technical training programs. Specifically...15 A. TECHNOLOGY ACCEPTANCE MODEL

Feasibility study of a pressure fed engine for a water recoverable space shuttle booster Volume 2: Technical, phase A effort

NASA Technical Reports Server (NTRS)

1972-01-01

Design and systems considerations are presented on an engine concept selection for further preliminary design and program evaluation. These data have been prepared from a feasibility study of a pressure-fed engine for the water recoverable space shuttle booster.

76 FR 41293 - Solicitation of Proposals for Technical Assistance Funding From the Native American Business...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-13

... informed decisions regarding their economic futures. Feasibility studies may concern the viability of an... regarding their economic futures. Feasibility studies may concern the viability of an economic development..., Interior. ACTION: Notice. SUMMARY: The Office of Indian Energy and Economic Development (IEED), through its...

Renewable Energy Feasibility Study Final Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rooney, Tim

2013-10-30

The Gila River Indian Community (GRIC or the Community) contracted the ANTARES Group, Inc. (“ANTARES”) to assess the feasibility of solar photovoltaic (PV) installations. A solar energy project could provide a number of benefits to the Community in terms of potential future energy savings, increased employment, environmental benefits from renewable energy generation and usage, and increased energy self-sufficiency. The study addresses a number of facets of a solar project’s overall feasibility, including: Technical appropriateness; Solar resource characteristics and expected system performance; Levelized cost of electricity (LCOE) economic assessment. The Gila River Indian Community (GRIC or the Community) contracted the ANTARESmore » Group, Inc. (“ANTARES”) to prepare a biomass resource assessment study and evaluate the feasibility of a bioenergy project on Community land. A biomass project could provide a number of benefits to the Community in terms of increased employment, environmental benefits from renewable energy generation and usage, and increased energy self-sufficiency. The study addresses a number of facets of a biomass project’s overall feasibility, including: Resource analysis and costs; Identification of potential bioenergy projects; Technical and economic (levelized cost of energy) modeling for selected project configuration.« less

Ethical and hygiene aspects of the reprocessing of medical devices in Germany

PubMed Central

Kramer, Axel; Assadian, Ojan

2008-01-01

Based on safety and quality principles, for each medical device (MD), regardless of its declared status as single- or multi-use device, careful considerations must be made. This includes assessment whether reprocessing is economical and ecological meaningful, and technical feasible. So far, however, in Germany reprocessing of declared single use MD is legally allowed, provided that the above aspects are well covered. The purpose of this paper is to elucidate, when circumstances allow reprocessing of declared single-use MD. For reprocessing of single use MD the following preconditions must be fulfilled: The security level of the reprocessed MD must be equivalent to the status of the newly delivered item; this means that a patient is not exposed to a higher risk through a reprocessed disposable MD than through the new, i.e. un-processed product. The reprocessing must be based on a detailed risk assessment and risk analysis, and must be described in detail regarding selection of the reprocessing method. Additionally, all necessary safety- and quality assurance measures must be stated. The reprocessing measure needs to be accompanied with a quality management system which determines and documents the responsibility of all stages of reprocessing; where the corresponding reprocessing procedures are well defined; and the efficacy of the procedure is proven by product-specific or product-group-specific tests and reports. The process must be validated according to recognised methods of science and technology, taking into account potential negative influences of the reprocessing on the properties of the material and the technical and functional safety. For reprocessing of MDs of the category Critical C the quality assurance must be certified by an accredited certifying body. PMID:20204097

Percutaneous radiofrequency ablation of hepatic tumours: factors affecting technical failure of artificial ascites formation using an angiosheath.

PubMed

Kang, T W; Lee, M W; Hye, M J; Song, K D; Lim, S; Rhim, H; Lim, H K; Cha, D I

2014-12-01

To evaluate the technical feasibility of artificial ascites formation using an angiosheath before percutaneous radiofrequency ablation (RFA) for hepatic tumours and to determine predictive factors affecting the technical failure of artificial ascites formation. This retrospective study was approved by the institutional review board. One hundred and thirteen patients underwent percutaneous RFA of hepatic tumours after trying to make artificial ascites using an angiosheath to avoid collateral thermal damage. The technical success rate of making artificial ascites using an angiosheath and conversion rate to other techniques after initial failure of making artificial ascites were evaluated. The technical success rate for RFA was assessed. In addition, potential factors associated with technical failure including previous history of transcatheter arterial chemoembolization (TACE) or RFA, type of abdominal surgery, and adjacent perihepatic structures were reviewed. Predictive factors for the technical failure of artificial ascites formation were analysed using multivariate analysis. The technical success rates of artificial ascites formation by angiosheath and that of RFA were 84.1% (95/113) and 97.3% (110/113), respectively. The conversion rate to other techniques after the failure of artificial ascites formation using an angiosheath was 15.9% (18/113). Previous hepatic resection was the sole independent predictive factor affecting the technical failure of artificial ascites formation (p<0.001, odds ratio = 29.03, 95% confidence interval: 4.56-184.69). Making artificial ascites for RFA of hepatic tumours using an angiosheath was technically feasible in most cases. However, history of hepatic resection was a significant predictive factor affecting the technical failure of artificial ascites formation. Copyright © 2014 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.

Minimally invasive videoscopic parathyroidectomy: a feasibility study in dogs and humans.

PubMed

Norman, J; Albrink, M H

1997-10-01

With increasing experience using preoperative sestamibi nuclear scanning, several reports have shown that selective unilateral neck exploration is sufficient in most patients with primary hyperparathyroidism. The current study was undertaken to determine the feasibility of videoscopic parathyroidectomy as a means to decrease scar size while allowing adequate exposure for the identification of normal parathyroid glands and removal of those glands that are enlarged. Eight mongrel dogs underwent removal of all parathyroid glands and both lobes of the thyroid using videoscopic techniques. Once the technical aspects of the operation were established, four patients with primary hyperparathyroidism underwent sestamibi-directed unilateral videoscopic neck exploration with attempted parathyroid removal. All thyroid and parathyroid tissues were removed from each dog without complications. Maintenance of an adequate working space proved to be the major difficulty that necessitated placement of a small mechanical retractor. This problem was even more severe in humans, which prevented the identification of one of four adenomas and three of four normal glands. Although videoscopic surgery is possible within the loose connective tissues of the canine neck, the inability to establish an adequate working space within the neck of humans and the location of parathyroid glands behind the thyroid precludes the use of this technique for patients with hyperparathyroidism.

Radiation sterilization of medical products in the Philippines

NASA Astrophysics Data System (ADS)

Singson, C.; Carmona, C.; de Guzman, Z.; Barrun, W.; Lanuza, L.

This paper presents the results of a comprehensive investigation of the biological, microbiological, physico-chemical, and dosimetry aspects of using gamma irradiation for the sterilization of locally manufactured medical products and pharmaceuticals. The objective of this study is to determine the technological feasibility of radiation sterilization for the said products in the Philippines. Hence, the materials used were directly obtained from local manufacturers. They are polyvinyl chloride or polyethylene based medical plastic disposables namely: absorbent cotton, surgical gauze, bandage, visceral packs, and some antibiotics and opthalmic ointments. The gamma facility of the Philippine Atomic Energy Commission was used for the irradiation. Result of biological studies indicate no signs of toxicity on experimental mice injected with extracts from irradiated samples. The contaminants are identified as Pseudomonas Sp. Staphyloccocus Aureus and Bacillus Subtilis. The D 10 values of survivors of higher doses ranged below 0.235 Megarad suggesting that these contaminants can be eliminated by the generally used sterilizing dose of 2.5 Mrads. The physico-chemical tests did not indicate any significant degradation of the irradiated products. Opthalmic and topical antibiotic ointments showed no marked decrease in potency. Fading tests on dosimeters used showed that red perspex is a more efficient dosimeter than clear perspex when irradiation time is prolonged. These studies indicated that radiation sterilization is technically feasible for locally manufactured medical products.

Outcome of sublay mesh repair in non-complicated umbilical hernia with liver cirrhosis and ascites.

PubMed

Hassan, Ahmed Mohamed Abdelaziz; Salama, Asaad Fayrouz; Hamdy, Hussam; Elsebae, Magdy Mohamed; Abdelaziz, Ayman Mohamed; Elzayat, Wessam Abdelrahman

2014-01-01

Umbilical hernia repair is often accompanied by complications in patients with liver cirrhosis and ascites. It appears that the early elective repair of umbilical hernias in these patients is safer and can be considered for selected patients. The objective of this study is to evaluate the feasibility, safety, complications and technical aspects of sublay mesh repair of umbilical hernia in cirrhotic patients with ascites. Between October 2010 and April 2013, 70 patients with non-complicated umbilical hernia, liver cirrhosis and ascites were enrolled in this study. All patients underwent sublay mesh repair. Demographic data, preoperative variables, peri-operative course, and postoperative complications were recorded and analyzed. A total of 38 women and 32 men underwent operation at an average age 51.24 years. The patients mean MELD score was 18 (range 12-25). The mean operative time was 67.45 min and the average hospital stay was 3.8 days. 2 patients had wound infection, 3 patients developed seroma and 1 patient had an ascitic fistula. Recurrence occurred in 1 (1.4%) patient and no mortality related to the procedure. elective sublay umbilical hernia mesh repair is a safe approach and feasible technique in selected non-complicated cirrhotic patients with ascites. Copyright © 2013 Surgical Associates Ltd. Published by Elsevier Ltd. All rights reserved.

40 CFR 35.1640-1 - Application review criteria.

Code of Federal Regulations, 2010 CFR

2010-07-01

... information supplied by the applicant which address the following criteria: (1) The technical feasibility of...) of the Act. (6) The reasonableness of the proposed costs relative to the proposed work, the... presented in paragraph (a) of this section will be modified in relation to the smaller amount of technical...

The Roles of Technical Communication Researchers in Design Scholarship

ERIC Educational Resources Information Center

Sánchez, Fernando

2017-01-01

Design has come to be understood as an essential aspect of the work that technical communicators claim. As a result, research in the field of technical communication has approached studies of design in numerous ways. This article showcases how technical communication researchers assume the roles of observers, testers, critics, creators, and…

Feasibility study for mega-electron-volt electron beam tomography.

PubMed

Hampel, U; Bärtling, Y; Hoppe, D; Kuksanov, N; Fadeev, S; Salimov, R

2012-09-01

Electron beam tomography is a promising imaging modality for the study of fast technical processes. But for many technical objects of interest x rays of several hundreds of keV energy are required to achieve sufficient material penetration. In this article we report on a feasibility study for fast electron beam computed tomography with a 1 MeV electron beam. The experimental setup comprises an electrostatic accelerator with beam optics, transmission target, and a single x-ray detector. We employed an inverse fan-beam tomography approach with radiographic projections being generated from the linearly moving x-ray source. Angular projections were obtained by rotating the object.

Real-time earthquake monitoring: Early warning and rapid response

NASA Technical Reports Server (NTRS)

1991-01-01

A panel was established to investigate the subject of real-time earthquake monitoring (RTEM) and suggest recommendations on the feasibility of using a real-time earthquake warning system to mitigate earthquake damage in regions of the United States. The findings of the investigation and the related recommendations are described in this report. A brief review of existing real-time seismic systems is presented with particular emphasis given to the current California seismic networks. Specific applications of a real-time monitoring system are discussed along with issues related to system deployment and technical feasibility. In addition, several non-technical considerations are addressed including cost-benefit analysis, public perceptions, safety, and liability.

Manual Arts to Technology Education: Are We Ripe for Infusing Aspects of a Green Technology into Career and Technical Education Constituent Subjects?

ERIC Educational Resources Information Center

Asunda, Paul A.

2010-01-01

This paper is a conceptual essay that reviews industrial and economic changes that have shaped vocational education to present day Career and Technical Education (CTE) curriculum, and specifically the role of technology education in meeting societal needs. An argument is presented that CTE is ripe to integrate aspects of green technology and…

Esophageal motor function: technical aspects of manometry.

PubMed

Gyawali, C Prakash; Patel, Amit

2014-10-01

High-resolution manometry (HRM) has advanced the understanding of esophageal peristaltic mechanisms and has simplified esophageal motor testing. In this article the technical aspects of HRM are addressed, focusing on test protocols, in addition to concerns and pitfalls in performing esophageal motor studies. Specifically, catheter positioning, equipment-related artifacts, basal data acquisition, adequate swallows, and provocative maneuvers are discussed. Copyright © 2014 Elsevier Inc. All rights reserved.

Technical, Economical, and Microbiological Aspects of the Microaerobic Process on H2S Removal for Low Sulfate Concentration Wastewaters.

PubMed

Sousa, M R; Oliveira, C J S; Lopes, A C; Rodríguez, E R; Holanda, G B M; Landim, P G C; Firmino, P I M; Dos Santos, A B

2016-12-01

We studied the feasibility of the microaerobic process, in comparison with the traditional chemical absorption process (NaOH), on H 2 S removal in order to improve the biogas quality. The experiment consisted of two systems: R1, biogas from an anaerobic reactor was washed in a NaOH solution, and R2, headspace microaeration with atmospheric air in a former anaerobic reactor. The microaeration used for low sulfate concentration wastewater did not affect the anaerobic digestion, but even increased system stability. Methane production in the R2 was 14 % lower compared to R1, due to biogas dilution by the atmospheric air used. The presence of oxygen in the biogas reveals that not all the oxygen was consumed for sulfide oxidation in the liquid phase indicating mass transfer limitations. The reactor was able to rapidly recover its capacity on H 2 S removal after an operational failure. Bacterial and archaeal richness shifted due to changes in operational parameters, which match with the system functioning. Finally, the microaerobic system seems to be more advantageous for both technical and economical reasons, in which the payback of microaerobic process for H 2 S removal was 4.7 months.

Using Life-Cycle Human Factors Engineering to Avoid $2.4 Million in Costs: Lessons Learned from NASA's Requirements Verification Process for Space Payloads

NASA Technical Reports Server (NTRS)

Carr, Daniel; Ellenberger, Rich

2008-01-01

The Human Factors Implementation Team (HFIT) process has been used to verify human factors requirements for NASA International Space Station (ISS) payloads since 2003, resulting in $2.4 million in avoided costs. This cost benefit has been realized by greatly reducing the need to process time-consuming formal waivers (exceptions) for individual requirements violations. The HFIT team, which includes astronauts and their technical staff, acts as the single source for human factors requirements integration of payloads. HFIT has the authority to provide inputs during early design phases, thus eliminating many potential requirements violations in a cost-effective manner. In those instances where it is not economically or technically feasible to meet the precise metric of a given requirement, HFIT can work with the payload engineers to develop common sense solutions and formally document that the resulting payload design does not materially affect the astronaut s ability to operate and interact with the payload. The HFIT process is fully ISO 9000 compliant and works concurrently with NASA s formal systems engineering work flow. Due to its success with payloads, the HFIT process is being adapted and extended to ISS systems hardware. Key aspects of this process are also being considered for NASA's Space Shuttle replacement, the Crew Exploration Vehicle.

Technical Aspects of Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration: CHEST Guideline and Expert Panel Report.

PubMed

Wahidi, Momen M; Herth, Felix; Yasufuku, Kazuhiro; Shepherd, Ray Wesley; Yarmus, Lonny; Chawla, Mohit; Lamb, Carla; Casey, Kenneth R; Patel, Sheena; Silvestri, Gerard A; Feller-Kopman, David J

2016-03-01

Endobronchial ultrasound (EBUS) was introduced in the last decade, enabling real-time guidance of transbronchial needle aspiration (TBNA) of mediastinal and hilar structures and parabronchial lung masses. The many publications produced about EBUS-TBNA have led to a better understanding of the performance characteristics of this procedure. The goal of this document was to examine the current literature on the technical aspects of EBUS-TBNA as they relate to patient, technology, and proceduralist factors to provide evidence-based and expert guidance to clinicians. Rigorous methodology has been applied to provide a trustworthy evidence-based guideline and expert panel report. A group of approved panelists developed key clinical questions by using the PICO (population, intervention, comparator, and outcome) format that addressed specific topics on the technical aspects of EBUS-TBNA. MEDLINE (via PubMed) and the Cochrane Library were systematically searched for relevant literature, which was supplemented by manual searches. References were screened for inclusion, and well-recognized document evaluation tools were used to assess the quality of included studies, to extract meaningful data, and to grade the level of evidence to support each recommendation or suggestion. Our systematic review and critical analysis of the literature on 15 PICO questions related to the technical aspects of EBUS-TBNA resulted in 12 statements: 7 evidence-based graded recommendations and 5 ungraded consensus-based statements. Three questions did not have sufficient evidence to generate a statement. Evidence on the technical aspects of EBUS-TBNA varies in strength but is satisfactory in certain areas to guide clinicians on the best conditions to perform EBUS-guided tissue sampling. Additional research is needed to enhance our knowledge regarding the optimal performance of this effective procedure. Copyright © 2016 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.

The Method of Validity Evaluation of Hard Coal Excavation in Residual Seam Parts

NASA Astrophysics Data System (ADS)

Wodarski, Krzysztof; Bijańska, Jolanta; Gumiński, Adam

2017-12-01

The excavation of residual seam parts should be justified by positive assessment of the purposefulness, technical feasibility and economic effectiveness. The results of the profitability evaluation are crucial in a decision making process. The excavation of residual seam parts, even if it is possible from a technical point of view, should not be implemented if it is economically inefficient or when accompanied by a very high risk of non-recovery of invested capital resources. The article presents the evaluation method of possibilities of excavating hard coal from residual seam parts, and the example of its use in one of collieries in the Upper Silesian Coal Basin. Working in line with the developed method, allows to indicate the variant of residual seam part exploitation, which is feasible to implement from a technical point of view, and which is characterized by the highest economic effectiveness and lowest risk.

Technical Feasibility Study for Zero Energy K-12 Schools

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pless, Shanti D.; Torcellini, Paul A.; Bonnema, Eric

A simulation-based technical feasibility study was completed to show the types of technologies required to achieve ZEB status with this building type. These technologies are prioritized across the building's subsystem such that design teams can readily integrate the ideas. Energy use intensity (EUI) targets were established for U.S. climate zones such that K-12 schools can be zero-ready or can procure solar panels or other renewable energy production sources to meet the zero energy building definition. Results showed that it is possible for K-12 schools to achieve zero energy when the EUI is between 20 and 26 kBtu/ft2/yr. Temperate climates requiredmore » a smaller percentage of solar panel coverage than very hot or very cold climates. The paper provides a foundation for technically achieving zero energy schools with a vision of transforming the school construction market to mainstream zero energy buildings within typical construction budgets.« less

A Feasibility and Engineering Study of Extending Cable TV Programming to Surrounding Communities. Planning Grant Report.

ERIC Educational Resources Information Center

Lakeshore Technical Inst., Cleveland, WI.

This report chronicles planning grant activities undertaken by the Lakeshore Technical Institute (LTI) and documents findings of a study to determine the feasibility and costs of extending public and educational programs from the LTI campus in Cleveland, Wisconsin, to surrounding communities. The geographic service area, regional…

Feasibility study ASCS remote sensing/compliance determination system

NASA Technical Reports Server (NTRS)

Duggan, I. E.; Minter, T. C., Jr.; Moore, B. H.; Nosworthy, C. T.

1973-01-01

A short-term technical study was performed by the MSC Earth Observations Division to determine the feasibility of the proposed Agricultural Stabilization and Conservation Service Automatic Remote Sensing/Compliance Determination System. For the study, the term automatic was interpreted as applying to an automated remote-sensing system that includes data acquisition, processing, and management.

78 FR 24786 - Notice of Funding Availability for the Department of Transportation's National Infrastructure...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-04-26

..., engineering or design work and purchasing existing facilities or right-of-way. 3. Livability: Increasing... Feasibility: The technical feasibility of the project should be demonstrated by engineering and design studies and activities; the development of design criteria and/or a basis of design; the basis for the cost...

The Environmental Impact Study Of Micro Hydro Power In Pekalongan Indonesia

NASA Astrophysics Data System (ADS)

Suwarto; Hadi, Sudharto P.; Hermawan

2018-02-01

Curugmuncar II micro hydro power (MHP) located in Petungkriyono sub district is one of three MHPs installed in Pekalongan district. This study aims to analyze the MHP operation environmental impact. The study used qualitative method, with interviews, observations, and material testing. The data used are primary and secondary data. This research was conducted in Curugmuncar Village, Petungkriyono Subdistrict, Pekalongan Regency, Indonesia. MHP has power capacity of 100 KW with power usage of 50 KW. MHP used by 155 users with load capacity 2 A 220 volt AC. The community more used of lights as the houses and street lighting. The MHP operation had several environmental factors such as: sociology, technically feasible, hydrology, physical and chemical water quality, ergonomics, economically feasible, irrigation, clean water supply, government policy, and others. The supporting factors sustainability of MHP were sociology, irrigation, ergonomics, clean water supply, physical and chemical water quality, hydrology, and government policy. The inhibiting factors of MHP operation were technically feasible, economically feasible, and government policy. The results showed that the MHP environment requires a professional management system to achieve the MHP sustainability

Development of NASA Technical Standards Program Relative to Enhancing Engineering Capabilities

NASA Technical Reports Server (NTRS)

Gill, Paul S.; Vaughan, William W.

2003-01-01

The enhancement of engineering capabilities is an important aspect of any organization; especially those engaged in aerospace development activities. Technical Standards are one of the key elements of this endeavor. The NASA Technical Standards Program was formed in 1997 in response to the NASA Administrator s directive to develop an Agencywide Technical Standards Program. The Program s principal objective involved the converting Center-unique technical standards into Agency wide standards and the adoption/endorsement of non-Government technical standards in lieu of government standards. In the process of these actions, the potential for further enhancement of the Agency s engineering capabilities was noted relative to value of being able to access Agencywide the necessary full-text technical standards, standards update notifications, and integration of lessons learned with technical standards, all available to the user from one Website. This was accomplished and is now being enhanced based on feedbacks from the Agency's engineering staff and supporting contractors. This paper addresses the development experiences with the NASA Technical Standards Program and the enhancement of the Agency's engineering capabilities provided by the Program s products. Metrics are provided on significant aspects of the Program.

Feasibility of Cosmic-Ray Muon Intensity Measurements for Tunnel Detection

DTIC Science & Technology

1990-06-01

BUR-’TR-3110 TECHNICAL REPORT BRL-TR-3110 mBRL I• FEASIBILITY OF COSMIC - RAY MUON INTENSITY MEASUREMENTS FOR TUNNEL DETECTION AIVARS CELIN. , JUNE...Feasibility of Cosmic - Ray Muon Intensity Measurements f or Tunnel Detection 612786H20001 4.AUTNOR(S) Aivars Celmins 7. PERORMING ORGANIZATION NAMe(S) AND... cosmic - ray muon intensity depends on the amount, of material above the point of reference and is therefore influenced by anomalies in rock density

Advanced Concepts: Enabling Future AF Missions Through the Discovery and Demonstration of Emerging Revolutionary Technologies

DTIC Science & Technology

2012-10-03

µmeteoroids, weather, vibrations... Asteroid Mining Breakthrough Physics No known feasible concepts. --- Concept NTF NMS NCA Primary Challenges for Launch...weather, vibrations... Asteroid Mining Breakthrough Physics No known feasible concepts. --- 8 2.2 Microwave Augmentation of Solid Rocket Motors16,17 As...Astronautica, Vol. 52, 1, pp. 49-75, 30 May, 2002. 7. Sonter, M.J., “The Technical and Economic Feasibility of Mining the Near-Earth Asteroids ,” Acta

76 FR 72666 - Pipeline Safety: Expanding the Use of Excess Flow Valves in Gas Distribution Systems to...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-11-25

... technical feasibility and cost of the installation of such valves; (D) The public safety benefits of the... public comment regarding the technical challenges, and the potential costs and the potential benefits of... a cost-benefit perspective. DATES: Persons interested in submitting written comments on this ANPRM...

Feasibility study of an Integrated Program for Aerospace vehicle Design (IPAD). Volume 5: Catalog of IPAD technical program elements

NASA Technical Reports Server (NTRS)

Gillette, W. B. (Editor); Southall, J. W. (Editor)

1973-01-01

The catalog is presented of technical program elements which are required to support the design activities for a subsonic and supersonic commercial transport. Information for each element consists of usage and storage information, ownership, status and an abstract describing the purpose of the element.

Solution-Space Screening of a Hypersonic Endurance Demonstrator

NASA Technical Reports Server (NTRS)

Chudoba, Bernd; Coleman, Gary; Oza, Amit; Gonzalez, Lex; Czysz, Paul

2012-01-01

This report documents a parametric sizing study performed to develop a program strategy for research and development and procurement of a feasible next-generation hypersonic air-breathing endurance demonstrator. Overall project focus has been on complementing technical and managerial decision-making during the earliest conceptual design phase towards minimization of operational, technical, and managerial risks.

Troubleshooting Instruction in Vocational-Technical Education Via Dynamic Simulation. Final Report.

ERIC Educational Resources Information Center

Finch, Curtis R.

This study was designed to examine the feasibility of using simulation as a means of teaching vocational-technical students to detect and identify malfunctions in selected electrical and mechanical systems. A dynamic simulator was employed which features interchangeable panels and logic that permits the simulation of electrical or mechanical…

DC-9/JT8D refan, Phase 1. [technical and economic feasibility of retrofitting DC-9 aircraft with refan engine to achieve desired acoustic levels

NASA Technical Reports Server (NTRS)

1973-01-01

Analyses and design studies were conducted on the technical and economic feasibility of installing the JT8D-109 refan engine on the DC-9 aircraft. Design criteria included minimum change to the airframe to achieve desired acoustic levels. Several acoustic configurations were studied with two selected for detailed investigations. The minimum selected acoustic treatment configuration results in an estimated aircraft weight increase of 608 kg (1,342 lb) and the maximum selected acoustic treatment configuration results in an estimated aircraft weight increase of 809 kg (1,784 lb). The range loss for the minimum and maximum selected acoustic treatment configurations based on long range cruise at 10 668 m (35,000 ft) altitude with a typical payload of 6 804 kg (15,000 lb) amounts to 54 km (86 n. mi.) respectively. Estimated reduction in EPNL's for minimum selected treatment show 8 EPNdB at approach, 12 EPNdB for takeoff with power cutback, 15 EPNdB for takeoff without power cutback and 12 EPNdB for sideline using FAR Part 36. Little difference was estimated in EPNL between minimum and maximum treatments due to reduced performance of maximum treatment. No major technical problems were encountered in the study. The refan concept for the DC-9 appears technically feasible and economically viable at approximately $1,000,000 per airplane. An additional study of the installation of JT3D-9 refan engine on the DC-8-50/61 and DC-8-62/63 aircraft is included. Three levels of acoustic treatment were suggested for DC-8-50/61 and two levels for DC-8-62/63. Results indicate the DC-8 technically can be retrofitted with refan engines for approximately $2,500,000 per airplane.

Beyond xMOOCs in healthcare education: study of the feasibility in integrating virtual patient systems and MOOC platforms.

PubMed

Stathakarou, Natalia; Zary, Nabil; Kononowicz, Andrzej A

2014-01-01

Background. Massive Open Online Courses (MOOCs) are an emerging trend in online learning. However, their technology is not yet completely adjusted to the needs of healthcare education. Integration of Virtual Patients within MOOCs to increase interactivity and foster clinical reasoning skills training, has been discussed in the past, but not verified by a practical implementation. Objective. To investigate the technical feasibility of integrating MOOCs with Virtual Patients for the purpose of enabling further research into the potential pedagogical benefits of this approach. Methods. We selected OpenEdx and Open Labyrinth as representative constituents of a MOOC platform and Virtual Patient system integration. Based upon our prior experience we selected the most fundamental technical requirement to address. Grounded in the available literature we identified an e-learning standard to guide the integration. We attempted to demonstrate the feasibility of the integration by designing a "proof-of-concept" prototype. The resulting pilot implementation was subject of verification by two test cases. Results. A Single Sign-On mechanism connecting Open Labyrinth with OpenEdx and based on the IMS LTI standard was successfully implemented and verified. Conclusion. We investigated the technical perspective of integrating Virtual Patients with MOOCs. By addressing this crucial technical requirement we set a base for future research on the educational benefits of using virtual patients in MOOCs. This provides new opportunities for integrating specialized software in healthcare education at massive scale.

Beyond xMOOCs in healthcare education: study of the feasibility in integrating virtual patient systems and MOOC platforms

PubMed Central

Zary, Nabil; Kononowicz, Andrzej A.

2014-01-01

Background. Massive Open Online Courses (MOOCs) are an emerging trend in online learning. However, their technology is not yet completely adjusted to the needs of healthcare education. Integration of Virtual Patients within MOOCs to increase interactivity and foster clinical reasoning skills training, has been discussed in the past, but not verified by a practical implementation. Objective. To investigate the technical feasibility of integrating MOOCs with Virtual Patients for the purpose of enabling further research into the potential pedagogical benefits of this approach. Methods. We selected OpenEdx and Open Labyrinth as representative constituents of a MOOC platform and Virtual Patient system integration. Based upon our prior experience we selected the most fundamental technical requirement to address. Grounded in the available literature we identified an e-learning standard to guide the integration. We attempted to demonstrate the feasibility of the integration by designing a “proof-of-concept” prototype. The resulting pilot implementation was subject of verification by two test cases. Results. A Single Sign-On mechanism connecting Open Labyrinth with OpenEdx and based on the IMS LTI standard was successfully implemented and verified. Conclusion. We investigated the technical perspective of integrating Virtual Patients with MOOCs. By addressing this crucial technical requirement we set a base for future research on the educational benefits of using virtual patients in MOOCs. This provides new opportunities for integrating specialized software in healthcare education at massive scale. PMID:25405078

Feasibility and safety of transfemoral intra-arterial chemotherapy for head and neck cancer using a 3-French catheter system: comparison with a 4-French catheter system.

PubMed

Watanabe, Shigeru; Yamamoto, Akira; Torigoe, Teruyuki; Kanki, Akihiko; Tamada, Tsutomu; Ito, Katsuyoshi

2016-02-01

To assess the technical feasibility of transfemoral intra-arterial chemotherapy for head and neck cancer using a 3-French catheter system (3-Fr). Sixty-two patients with head and neck cancer who underwent transfemoral intra-arterial chemotherapy were included in this study. Thirty-three patients underwent treatment using a 3-Fr (group 3-Fr). Twenty-nine patients underwent treatment using a 4-French catheter system (group 4-Fr). The technical success rate, duration of the procedure with fluoroscopy, and rate of procedure-related complications were compared between group 3-Fr and group 4-Fr. In addition, in group 3-Fr, bleeding at the puncture site after 1.5 h of bed rest was evaluated. The technical success rate was 100% in both groups. The duration of the procedure with fluoroscopy didn't differ between group 3-Fr (mean 28.0 min) and group 4-Fr (mean 30.2 min) (p = 0.524). There was no procedure-related complication in either group. In group 3-Fr, no hemorrhagic complication was observed. A 3-French catheter system can be used to perform transfemoral intra-arterial chemotherapy for head and neck cancer and is technically feasible with approximately the same duration of the procedure with fluoroscopy. Furthermore, this method may shorten the bed rest time without hemorrhagic complication, and may reduce the risk of pulmonary embolism.

Decision Support System for Aquifer Recharge (AR) and ...

EPA Pesticide Factsheets

Aquifer recharge (AR) is a technical method being utilized to enhance groundwater resources through man-made replenishment means, such as infiltration basins and injections wells. Aquifer storage and recovery (ASR) furthers the AR techniques by withdrawal of stored groundwater at a later time for beneficial use. It is a viable adaptation technique for water availability problems. Variants of the water storage practices include recharge through urban green infrastructure and the subsurface injection of reclaimed water, i.e., wastewater, which has been treated to remove solids and impurities. In addition to a general overview of ASR variations, this report focuses on the principles and technical basis for an ASR decision support system (DSS), with the necessary technical references provided. The DSS consists of three levels of tools and methods for ASR system planning and assessment, design, and evaluation. Level 1 of the system is focused on ASR feasibility, for which four types of data and technical information are organized around: 1) ASR regulations and permitting needs, 2) Water demand projections, 3) Climate change and water availability, and 4) ASR sites and technical information. These technical resources are integrated to quantify water availability gaps and the feasibility of using ASR to meet the volume and timing of the water resource shortages. A systemic analysis of water resources was conducted for sustainable water supplies in Las Vegas, Nevada f

Technical and economic feasibility study of solar/fossil hybrid power systems

NASA Technical Reports Server (NTRS)

Bloomfield, H. S.; Calogeras, J. E.

1977-01-01

Results show that new hybrid systems utilizing fossil fuel augmentation of solar energy can provide significant capital and energy cost benefits when compared with solar thermal systems requiring thermal storage. These benefits accrue from a reduction of solar collection area that results from both the use of highly efficient gas and combined cycle energy conversion subsystems and elimination of the requirement for long-term energy storage subsystems. Technical feasibility and fuel savings benefits of solar hybrid retrofit to existing fossil-fired, gas and vapor cycle powerplants was confirmed; however, economic viability of steam cycle retrofit was found to be dependent on the thermodynamic and operational characteristics of the existing powerplant.

Feasibility of commercial space manufacturing, production of pharmaceuticals. Volume 2: Technical analysis

NASA Technical Reports Server (NTRS)

1978-01-01

A technical analysis on the feasibility of commercial manufacturing of pharmaceuticals in space is presented. The method of obtaining pharmaceutical company involvement, laboratory results of the separation of serum proteins by the continuous flow electrophoresis process, the selection and study of candidate products, and their production requirements is described. The candidate products are antihemophilic factor, beta cells, erythropoietin, epidermal growth factor, alpha-1-antitrypsin and interferon. Production mass balances for antihemophelic factor, beta cells, and erythropoietin were compared for space versus ground operation. A conceptual description of a multiproduct processing system for space operation is discussed. Production requirements for epidermal growth factor of alpha-1-antitrypsin and interferon are presented.

Axial traction magnetic resonance imaging (MRI) of the glenohumeral joint in healthy volunteers: initial experience.

PubMed

Garwood, Elisabeth R; Souza, Richard B; Zhang, Amy; Zhang, Alan L; Ma, C Benjamin; Link, Thomas M; Motamedi, Daria

Evaluate technical feasibility and potential applications of glenohumeral (GH) joint axial traction magnetic resonance imaging (MRI) in healthy volunteers. Eleven shoulders were imaged in neutral and with 4kg axial traction at 3T. Quantitative measurements were assessed. Axial traction was well tolerated. There was statistically significant widening of the superior GH joint space (p=0.002) and acromial angle (p=0.017) with traction. Inter-rater agreement was high. GH joint axial traction MRI is technically feasible and well tolerated in volunteers. Traction of the capsule, widening of the superior GH joint space and acromial angle were observed. Copyright © 2017 Elsevier Inc. All rights reserved.

Chemokine Prostate Cancer Biomarkers — EDRN Public Portal

Cancer.gov

STUDY DESIGN 1. The need for pre-validation studies. Preliminary data from our laboratory demonstrates a potential utility for CXCL5 and CXCL12 as biomarkers to distinguish between patients at high-risk versus low-risk for harboring prostate malignancies. However, this pilot and feasibility study utilized a very small sample size of 51 patients, which limited the ability of this study to adequately assess certain technical aspects of the ELISA technique and statistical aspects of we propose studies designed assess the robustness (Specific Aim 1) and predictive value (Specific Aim 2) of these markers in a larger study population. 2. ELISA Assays. Serum, plasma, or urine chemokine levels are assessed using 50 ul frozen specimen per sandwich ELISA in duplicate using the appropriate commercially-available capture antibodies, detection antibodies, and standard ELISA reagents (R&D; Systems), as we have described previously (15, 17, 18). Measures within each patient group are regarded as biological replicates and permit statistical comparisons between groups. For all ELISAs, a standard curve is generated with the provided standards and utilized to calculate the quantity of chemokine in the sample tested. These assays provide measures of protein concentration with excellent reproducibility, with replicate measures characterized by standard deviations from the mean on the order of <3%.

Cape Blanco Wind Farm Feasibility Study : Technical Report, No. 2, Civil Engineering.

DOE Office of Scientific and Technical Information (OSTI.GOV)

United States. Bonneville Power Administration.

1986-09-01

An investigation of the feasibility of developing a wind farm near Cape Blanco, Oregon, requires a plan for civil engineering and preliminary site construction activities. In this report, plans for such activities and related cost estimates are presented for a wind farm using either a Boeing MOD-2 or FloWind 170 wind turbine generator.

Extracorporeal photopheresis: Review of technical aspects.

PubMed

Arora, Satyam; Setia, Rasika

2017-01-01

Extracorporeal photochemotherapy (ECP) is considered as an immune modulating therapy majorly targeting the T cells of the Immune system. ECP induces an anti-inflammatory condition with tolerogenic responses without inducing a global immunosuppression state which is a typical feature of other therapeutic options such as steroids. Clinical indication of ECP has grown over time since its initial applications. Our review discusses the technical aspects of the concept of photopheresis with the available methods for its clinical applications.

Looking Back, Moving Forward: Technical, Normative, and Political Dimensions of School Discipline

ERIC Educational Resources Information Center

Wiley, Kathryn E.; Anyon, Yolanda; Yang, Jessica L.; Pauline, Malina E.; Rosch, Alyssa; Valladares, Giovana; Downing, Barbara J.; Pisciotta, Lisa

2018-01-01

Purpose: School discipline reformers have presumed that such work is largely a technical task, emphasizing discrete changes to discipline policies and protocols. Yet prior theory and research suggest that emphasizing technical changes may overlook additional and important aspects of reform, namely, the normative and political dimensions within…

Individualizing Instruction in Vocational and Technical Education.

ERIC Educational Resources Information Center

Nee, John G.

On the premise that individualized instruction and its many variations has become increasingly more important to the vocational and technical educator, various aspects of an individualized instructional program are discussed under eight headings: (1) What Is Meant by Individualizing Instruction in Vocational and Technical Education? (2) Why Do We…

Advanced Field Artillery System (AFAS) Future Armored Resupply Vehicle (FARV) Simulation Feasibility Analysis Study (FAS). Appendix C-F. Revision 1.0

DTIC Science & Technology

1994-07-18

09 Software Product Training 3 .4 .11 Physical Cues Segment Development3 .01 Technical Management .02 SW Requirements Analysis .03 Preliminary Design...Mission Planning Subsystem Development3 .01 Technical Management .02 SW Requirements Analysis .03 Preliminary Design - .04 Detailed Design .05 Code & CSU

Rapid Sand Filtration for Best Practical Treatment of Domestic Wastewater Stabilization Pond Effluent

ERIC Educational Resources Information Center

Boatright, D. T.; Lawrence, C. H.

1977-01-01

The technical and economic feasibility of constructing and operating a rapid sand filtration sewage treatment system as an adjunct to a waste water stabilization pond is investigated. The study concludes that such units are within the technical and economic constraints of a small community and comply with the EPA criteria. (BT)

DEMONSTRATION OF FUEL CELLS TO RECOVER ENERGY FROM LANDFILL GAS - PHASE III. DEMONSTRATION TESTS - PHASE IV. GUIDELINES AND RECOMMENDATIONS- VOLUME 1. TECHNICAL REPORT

EPA Science Inventory

The report summarizes the results of a four-phase program to demonstrate that fuel cell energy recovery using a commercial phosphoric acid fuel cell is both environmentally sound and commercially feasible. Phase I, a conceptual design and evaluation study, addressed the technical...

An analysis of the technical status of high level radioactive waste and spent fuel management systems

NASA Technical Reports Server (NTRS)

English, T.; Miller, C.; Bullard, E.; Campbell, R.; Chockie, A.; Divita, E.; Douthitt, C.; Edelson, E.; Lees, L.

1977-01-01

The technical status of the old U.S. mailine program for high level radioactive nuclear waste management, and the newly-developing program for disposal of unreprocessed spent fuel was assessed. The method of long term containment for both of these waste forms is considered to be deep geologic isolation in bedded salt. Each major component of both waste management systems is analyzed in terms of its scientific feasibility, technical achievability and engineering achievability. The resulting matrix leads to a systematic identification of major unresolved technical or scientific questions and/or gaps in these programs.

Electronic document distribution: Design of the anonymous FTP Langley Technical Report Server

NASA Technical Reports Server (NTRS)

Nelson, Michael L.; Gottlich, Gretchen L.

1994-01-01

An experimental electronic dissemination project, the Langley Technical Report Server (LTRS), has been undertaken to determine the feasibility of delivering Langley technical reports directly to the desktops of researchers worldwide. During the first six months, over 4700 accesses occurred and over 2400 technical reports were distributed. This usage indicates the high level of interest that researchers have in performing literature searches and retrieving technical reports at their desktops. The initial system was developed with existing resources and technology. The reports are stored as files on an inexpensive UNIX workstation and are accessible over the Internet. This project will serve as a foundation for ongoing projects at other NASA centers that will allow for greater access to NASA technical reports.

Technical and Vocational Education in Asia and Oceania. Bulletin of the Unesco Regional Office for Education in Asia and Oceania. Number 21, June 1980.

ERIC Educational Resources Information Center

United Nations Educational, Scientific, and Cultural Organization, Bangkok (Thailand). Regional Office for Education in Asia and Oceania.

This issue contains a regional review, discussion of technical and vocational education in countries of Asia and Oceania, articles dealing with various aspects of technical and vocational education, and a bibliographical supplement. The brief statistical review in section 1 concerns second-level technical and vocational education in the developing…

Virtual rehabilitation in a school setting: is it feasible for children with cerebral palsy?

PubMed

Rosie, Juliet A; Ruhen, Shelley; Hing, Wayne A; Lewis, Gwyn N

2015-01-01

To determine the feasibility of a school-based virtual rehabilitation intervention for children with cerebral palsy. A feasibility study was conducted using a mixed method approach. Participants were five children with cerebral palsy who were currently attending a rural school. Each child received an 8-week rehabilitation programme involving an Interactive Virtual Reality Exercise (IREX) system. The IREX was placed in the child's school for the duration of the intervention. Each child's programme was designed by a physiotherapist but supervised by a teacher aide at the school. Feasibility of the intervention was assessed through a questionnaire completed by the child and an interview conducted with the teacher supervisor. The children all rated the IREX intervention as fun, easy to use, and beneficial for their arm. Categories from the supervisor interviews centred on resolving technical issues, the enjoyment of taking part due to the child's progress, and the central role of interacting with the child. Input from the research physiotherapist was critical to the success of the intervention. The IREX is feasible to implement in a school-based setting supervised by teachers. This provides an option for delivering physiotherapy to children in isolated areas who do not receive on-going therapy. Implication for Rehabilitation Virtual rehabilitation programmes using the IREX are feasible in a school-based setting. The negative impact of technical difficulties is likely to be overcome by the user's enjoyment and rehabilitation benefits gained. Input from a therapist in designing and monitoring the programme is critical.

Internet Economics IV

DTIC Science & Technology

2004-08-01

components, and B2B /B2C aspects of those in a technical and economic snapshot. Talk number six discusses the trade-off between quality and cost, which...web services have been defined. The fifth talk summarizes key aspects of XML (Extended Markup Language), Web Services and their components, and B2B ...Internet is Run: A Worldwide Perspective 69 Christoph Pauls 5 XML, Web Services and B2C/ B2B : A Technical and Economical Snap- shot 87 Matthias Pitt 6

Composite Socio-Technical Systems: A Method for Social Energy Systems

DOE Office of Scientific and Technical Information (OSTI.GOV)

Zhang, Yingchen; He, Fulin; Hao, Jun

In order to model and study the interactions between social on technical systems, a systemic method, namely the composite socio-technical systems (CSTS), is proposed to incorporate social systems, technical systems and the interaction mechanism between them. A case study on University of Denver (DU) campus grid is presented in paper to demonstrate the application of the proposed method. In the case study, the social system, technical system, and the interaction mechanism are defined and modelled within the framework of CSTS. Distributed and centralized control and management schemes are investigated, respectively, and numerical results verifies the feasibility and performance of themore » proposed composite system method.« less

Technical feasibility of personalized articulating knee joint distraction for treatment of tibiofemoral osteoarthritis.

PubMed

Struik, T; Jaspers, J E N; Besselink, N J; van Roermund, P M; Plomp, S; Rudert, M J; Lafeber, F P J G; Mastbergen, S C

2017-11-01

Knee osteoarthritis is a highly prevalent degenerative joint disorder characterized by joint tissue damage and pain. Knee joint distraction has been introduced as a joint preserving surgical procedure to postpone knee arthroplasty. An often used standard externally fixation device for distraction poses a burden to patients due to the absence of joint flexion during the 6weeks treatment. Therefore, a personalized articulating distraction device was developed. The aim of this study was to test technical feasibility of this device. Based on an often applied rigid device, using equal bone pin positions and connectors, a hinge mechanism was developed consisting of a cam-following system for reproducing the complex joint-specific knee kinematics. In support, a device was developed for capturing the joint-specific sagittal plane articulation. The obtained kinematic data were translated into joint-specific cam shapes that were installed bilaterally in the hinge mechanism of the distraction device, as such providing personalized knee motion. Distraction of 5mm was performed within a range of motion of 30deg. joint flexion. Pre-clinical evaluation of the working principle was performed on human cadaveric legs and system stiffness characteristics were biomechanically evaluated. The desired range of motion was obtained and distraction was maintained under physiologically representative loading. Moreover, the joint-specific approach demonstrated tolerance of deviations from anatomical and alignment origin during initial placement of the developed distraction device. Articulation during knee distraction is considered technically feasible and has potential to decrease burden and improve acceptance of distraction therapy. Testing of clinical feasibility is warranted. Copyright © 2017 Elsevier Ltd. All rights reserved.

STTR Phase 1 Final Technical Report for Project Entitled "Developing a Mobile Torrefaction Machine"

DOE Office of Scientific and Technical Information (OSTI.GOV)

James, Joseph J.

The goal of this project, sponsored by Agri-Tech Producers, LLC (ATP), the small business grantee, was to determine if the torrefaction technology, developed by North Carolina State University (NCSU), which ATP has licensed, could be feasibly deployed in a mobile unit. The study adds to the area investigated, by having ATP’s STTR Phase I team give thoughtful consideration to how to use NCSU’s technology in a mobile unit. The findings by ATP’s team were that NCSU’s technology would best perform in units 30’ by 80’ (See Spec Sheet for the Torre-Tech 5.0 Unit in the Appendix) and the technical effectivenessmore » and economic feasibility investigation suggested that such units were not easily, efficiently or safely utilized in a forest or farm setting. (Note rendering of possible mobile system in the Appendix) Therefore, the findings by ATP’s team were that NCSU’s technology could not feasibly be deployed as a mobile unit.« less

Feasibility of mHealth and Near Field Communication technology based medication adherence monitoring.

PubMed

Morak, Juergen; Schwarz, Mark; Hayn, Dieter; Schreier, Guenter

2012-01-01

Poor patients' adherence to intake of prescribed medication has been identified as a serious problem in the treatment of chronically ill patients. Technical solutions are needed to measure and - if necessary - to increase the patients' adherence. A telemonitoring solution was developed to record a patient's medication intake based on smart blisters and mobile phones with NFC functionality. The components allowed recording of drug type, timestamp, and dosage of pills taken. The system's usability and technical feasibility was evaluated in the course of an application study. Over a period of 13 months 59 patients suffering from diabetes were monitored. 1,760 blisters were handed out to these patients and 14,843 takeout events were recorded and transmitted via mobile phone. Results indicate the feasibility of this concept to monitor adherence. Although the system still needs to be optimized for routine use it shows the potential for targeting the problem of poor patient adherence by NFC enabled devices.

Are Cellulose Nanofibers a Solution for a More Circular Economy of Paper Products?

PubMed

Delgado-Aguilar, Marc; Tarrés, Quim; Pèlach, M Àngels; Mutjé, Pere; Fullana-I-Palmer, Pere

2015-10-20

This paper presents the study of the feasibility of incorporating lignocellulosic nanofibers (LCNF) to paper in order to maintain the relevant physical properties and increase the number of cycles that paper can be recycled in the technosphere in a more circular economy. For that purpose, the effect of mechanical refining in recycling processes was compared with that of the novel LCNF addition. In this sense, the behavior of a bleached kraft hardwood pulp when recycled was investigated, as well as the effects of each methodology. Since there are many issues to be considered when trying to replace a technology, the present paper analyses its feasibility from a technical and environmental point of view. Technically, LCNF present greater advantages against mechanical refining, such as higher mechanical properties and longer durability of the fibers. A preliminary life cycle assessment showed that the environmental impacts of both systems are very similar; however, changing the boundary conditions to some feasible future scenarios, led to demonstrate that the CNF technology may improve significantly those impacts.

Feasibility of geothermal space/water heating for Mammoth Lakes Village, California. Final report, September 1976--September 1977

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sims, A.V.; Racine, W.C.

1977-12-01

Results of a study to determine the technical, economic, and environmental feasibility of geothermal district heating for Mammoth Lakes Village, California are reported. The geothermal district heating system selected is technically feasible and will use existing technology in its design and operation. District heating can provide space and water heating energy for typical customers at lower cost than alternative sources of energy. If the district heating system is investor owned, lower costs are realized after five to six years of operation, and if owned by a nonprofit organization, after zero to three years. District heating offers lower costs than alternativesmore » much sooner in time if co-generation and/or DOE participation in system construction are included in the analysis. During a preliminary environmental assessment, no potential adverse environmental impacts could be identified of sufficient consequence to preclude the construction and operation of the proposed district heating system. A follow-on program aimed at implementing district heating in Mammoth is outlined.« less

[Bioethical analysis of the Brazilian Dentistry Code of Ethics].

PubMed

Pyrrho, Monique; do Prado, Mauro Machado; Cordón, Jorge; Garrafa, Volnei

2009-01-01

The Brazilian Dentistry Code of Ethics (DCE), Resolution CFO-71 from May 2006, is an instrument created to guide dentists' behavior in relation to the ethical aspects of professional practice. The purpose of the study is to analyze the above mentioned code comparing the deontological and bioethical focuses. In order to do so, an interpretative analysis of the code and of twelve selected texts was made. Six of the texts were about bioethics and six on deontology, and the analysis was made through the methodological classification of the context units, textual paragraphs and items from the code in the following categories: the referentials of bioethical principlism--autonomy, beneficence, nonmaleficence and justice -, technical aspects and moral virtues related to the profession. Together the four principles represented 22.9%, 39.8% and 54.2% of the content of the DCE, of the deontological texts and of the bioethical texts respectively. In the DCE, 42% of the items referred to virtues, 40.2% were associated to technical aspects and just 22.9% referred to principles. The virtues related to the professionals and the technical aspects together amounted to 70.1% of the code. Instead of focusing on the patient as the subject of the process of oral health care, the DCE focuses on the professional, and it is predominantly turned to legalistic and corporate aspects.

Robotic applications in abdominal surgery: their limitations and future developments.

PubMed

Taylor, G W; Jayne, D G

2007-03-01

In the past 20 years, the technical aspects of abdominal surgery have changed dramatically. Operations are now routinely performed by laparoscopic techniques utilizing small abdominal incisions, with less patient discomfort, earlier recovery, improved cosmesis, and in many cases reduced economic burden on the healthcare provider. These benefits have largely been seen in the application of laparoscopic techniques to relatively straightforward procedures. It is not clear whether the same benefits carry through to more complex abdominal operations, which are more technically demanding and for which current laparoscopic instrumentation is less well adapted. The aim of surgical robotics is to address these problems and allow the advantages of minimal access surgery to be seen in a greater range of operations. A literature search was performed to ascertain the current state of the art in surgical robotics for the abdomen, and the technologies emerging within this field. The reference lists of the sourced articles were also searched for further relevant papers. Currently available robotic devices for abdominal surgery are limited to large, costly 'slave-master' or telemanipulator systems, such as the da Vinci (Intuitive Surgical, Sunny Vale, CA). In addition to their size and expense, these systems share the same limitation, by virtue of the fulcrum effect on instrument manipulation inherent in the use of ports by which external instruments gain access to the abdominal cavity. In order to overcome these limitations several smaller telemanipulator systems are being developed, and progress towards freely mobile intracorporeal devices is being made. While current robotic systems have considerable advantages over conventional laparoscopic techniques, they are not without limitations. Miniaturisation of robotic components and systems is feasible and necessary to allow minimally invasive techniques to reach full potential. The ultimate extrapolation of this progress is the development of intracorporeal robotics, the feasibility of which has been demonstrated. Copyright 2006 John Wiley & Sons, Ltd.

Challenges to global measles eradication: is it all in the timing?

PubMed

Davis, Robert; Mbabazi, William Baguma

2017-01-01

The case for global eradication of measles was first made in 1982. Since then, technical aspects of measles eradication have concluded that measles satisfied all criteria required for eradication. To date, only smallpox, among human diseases, has been eradicated, with polio, the next eradication candidate. In all previous eradication programmes, the pattern of slow implementation and missed deadlines is similar. Lessons from these past eradication programs should inform development of a time-limited measles eradication program. Notably, no measles eradication resolution is likely until member states are satisfied that polio eradication is accomplished. However, there is an impetus for measles eradication from the western hemisphere, where governments continue to pay the high costs of keeping their region measles free until global measles eradication is achieved. While previous vaccine preventable diseases eradications have depended on supplemental immunizations (SIAs), measles eradication will have to build both on SIAs and routine immunization systems strengthening. This article reviews non-technical considerations that could facilitate the delivery of a time-limited measles eradication initiative. The issues discussed are categorized as a) specificities of measles disease; b) specifics of measles vaccine/vaccination; c) special considerations for endemic countries and d) organization of international partnerships. The disease and vaccine specific issues are not insurmountable. The introduction of routine measles second dose, in the context of EPI systems strengthening, is paramount to endemic developing countries. In the international partnerships, it should be noted that i) Measles eradication will be easier and cheaper; ii) the return on investment is compelling; iii) leverage is feasible on the experiences of the Measles/Rubella initiative; iv) two disease eradication targets in one initiative are feasible and v) for the first time, an eradication investment case will inform the decisions. However, if previous eradication efforts have been marathons, measles eradication will need to be a sprint.

Challenges to global measles eradication: is it all in the timing?

PubMed Central

Davis, Robert; Mbabazi, William Baguma

2017-01-01

The case for global eradication of measles was first made in 1982. Since then, technical aspects of measles eradication have concluded that measles satisfied all criteria required for eradication. To date, only smallpox, among human diseases, has been eradicated, with polio, the next eradication candidate. In all previous eradication programmes, the pattern of slow implementation and missed deadlines is similar. Lessons from these past eradication programs should inform development of a time-limited measles eradication program. Notably, no measles eradication resolution is likely until member states are satisfied that polio eradication is accomplished. However, there is an impetus for measles eradication from the western hemisphere, where governments continue to pay the high costs of keeping their region measles free until global measles eradication is achieved. While previous vaccine preventable diseases eradications have depended on supplemental immunizations (SIAs), measles eradication will have to build both on SIAs and routine immunization systems strengthening. This article reviews non-technical considerations that could facilitate the delivery of a time-limited measles eradication initiative. The issues discussed are categorized as a) specificities of measles disease; b) specifics of measles vaccine/vaccination; c) special considerations for endemic countries and d) organization of international partnerships. The disease and vaccine specific issues are not insurmountable. The introduction of routine measles second dose, in the context of EPI systems strengthening, is paramount to endemic developing countries. In the international partnerships, it should be noted that i) Measles eradication will be easier and cheaper; ii) the return on investment is compelling; iii) leverage is feasible on the experiences of the Measles/Rubella initiative; iv) two disease eradication targets in one initiative are feasible and v) for the first time, an eradication investment case will inform the decisions. However, if previous eradication efforts have been marathons, measles eradication will need to be a sprint. PMID:29296146

76 FR 52955 - Medicare Program; Meeting of the Technical Advisory Panel on Medicare Trustee Reports

Federal Register 2010, 2011, 2012, 2013, 2014

2011-08-24

... Panel's discussion is expected to be very technical in nature and will focus on the actuarial and... discussion is expected to focus on highly technical aspects of estimation involving economics and actuarial science. Panelists are not restricted, however, in the topics that they choose to discuss. Procedure and...

76 FR 58514 - Medicare Program; Meeting of the Technical Advisory Panel on Medicare Trustee Reports

Federal Register 2010, 2011, 2012, 2013, 2014

2011-09-21

... to be very technical in nature and will focus on the actuarial and economic assumptions and methods... discussion is expected to focus on highly technical aspects of estimation involving economics and actuarial science. Panelists are not restricted, however, in the topics that they choose to discuss. Procedure and...

Introduction to Technical Services. Seventh Edition. Library and Information Science Text Series.

ERIC Educational Resources Information Center

Evans, G. Edward; Intner, Sheila S.; Weihs, Jean

This updated edition covers all aspects of library technical services--from acquisitions to managing the cataloging department--with new emphasis on automation as it affects technical services work and those skills that can be developed through work experience or classroom instruction. Part One, General Background, consists of four chapters that…

Improving Perinatal Care in the Rural Regions Worldwide by Wireless Enabled Antepartum Fetal Monitoring: A Demonstration Project

PubMed Central

Tapia-Conyer, Roberto; Lyford, Shelley; Saucedo, Rodrigo; Casale, Michael; Gallardo, Hector; Becerra, Karen; Mack, Jonathan; Mujica, Ricardo; Estrada, Daniel; Sanchez, Antonio; Sabido, Ramon; Meier, Carlos; Smith, Joseph

2015-01-01

Background. Fetal and neonatal morbidity and mortality are significant problems in developing countries; remote maternal-fetal monitoring offers promise in addressing this challenge. The Gary and Mary West Health Institute and the Instituto Carlos Slim de la Salud conducted a demonstration project of wirelessly enabled antepartum maternal-fetal monitoring in the state of Yucatán, Mexico, to assess whether there were any fundamental barriers preventing deployment and use. Methods. Following informed consent, high-risk pregnant women at 27–29 weeks of gestation at the Chemax primary clinic participated in remote maternal-fetal monitoring. Study participants were randomized to receive either prototype wireless monitoring or standard-of-care. Feasibility was evaluated by assessing technical aspects of performance, adherence to monitoring appointments, and response to recommendations. Results. Data were collected from 153 high-risk pregnant indigenous Mayan women receiving either remote monitoring (n = 74) or usual standard-of-care (n = 79). Remote monitoring resulted in markedly increased adherence (94.3% versus 45.1%). Health outcomes were not statistically different in the two groups. Conclusions. Remote maternal-fetal monitoring is feasible in resource-constrained environments and can improve maternal compliance for monitoring sessions. Improvement in maternal-fetal health outcomes requires integration of such technology into sociocultural context and addressing logistical challenges of access to appropriate emergency services. PMID:25691900

Development of the PRSEUS Multi-Bay Pressure Box for a Hybrid Wing Body Vehicle

NASA Technical Reports Server (NTRS)

Jegley, Dawn C.; Velicki, Alexander

2015-01-01

NASA has created the Environmentally Responsible Aviation Project to explore and document the feasibility, benefits, and technical risk of advanced vehicle configurations and enabling technologies that will reduce the impact of aviation on the environment. A critical aspect of this pursuit is the development of a lighter, more robust airframe that will enable the introduction of unconventional aircraft configurations that have higher lift-to-drag ratios, reduced drag, and lower community noise. Although such novel configurations like the Hybrid Wing Body (HWB) offer better aerodynamic performance as compared to traditional tube-and-wing aircraft, their blended wing shapes also pose significant new design challenges. Developing an improved structural concept that is capable of meeting the structural weight fraction allocated for these non-circular pressurized cabins is the primary obstacle in implementing large lifting-body designs. To address this challenge, researchers at NASA and The Boeing Company are working together to advance new structural concepts like the Pultruded Rod Stitched Efficient Unitized Structure (PRSEUS), which is an integrally stiffened panel design that is stitched together and designed to maintain residual load-carrying capabilities under a variety of damage scenarios. The large-scale multi-bay fuselage test article described in this paper is the final specimen in a building-block test program that was conceived to demonstrate the feasibility of meeting the structural weight goals established for the HWB pressure cabin.

To create a cleanroom controlled environment using a mobile air decontamination unit for the preparation of antineoplastic drugs.

PubMed

Lecordier, Julien; Plivard, Claire; Gardeux, Michel; Daouadi, Karim; Lahet, Jean-Jacques

2016-02-01

To use a mobile air decontamination unit (MADU) for a microbial destruction and decreased particle burden making a cleanroom controlled environment in a Centralized Chemotherapy Preparation Unit (CCPU). Good manufacturing practices (GMP) in France specify that the ambient air in the vicinity of a class III biosafety cabinet (isolator) complies with air cleanliness ISO 8 level in CCPU. This guideline has a significant impact because implementing a dedicated air handling unit (AHU) brings some engineering constraints and generates substantial additional costs. Authors have previously studied some technical and economical aspects to evaluate the feasibility of the MADU option. Using a MADU was the chosen option. Qualification of the CCPU showed that results were in compliance with the French GMP. After one year of use, the efficiency of the MADU was confirmed. According to these results, using a MADU constitutes a beneficial option for CCPU previously equipped with an isolator when compared to renovation work involving a standard built-in AHU. © The Author(s) 2014.

MESA - A new approach to low cost scientific spacecraft

NASA Astrophysics Data System (ADS)

Keyes, G. W.; Case, C. M.

1982-09-01

Today, the greatest obstacle to science and exploration in space is its cost. The present investigation is concerned with approaches for reducing this cost. Trends in the scientific spacecraft market are examined, and a description is presented for the MESA space platform concept. The cost drivers are considered, taking into account planning, technical aspects, and business factors. It is pointed out that the primary function of the MESA concept is to provide a satellite system at the lowest possible price. In order to reach this goal an attempt is made to benefit from all of the considered cost drivers. It is to be tried to work with the customer early in the mission analysis stage in order to assist in finding the right compromise between mission cost and return. A three phase contractual arrangement is recommended for MESA platforms. The phases are related to mission feasibility, specification definition, and design and development. Modular kit design promotes flexibility at low cost.

The 3.5-m all-SiC telescope for SPICA

NASA Astrophysics Data System (ADS)

Toulemont, Yves; Breysse, Jacques; Pierot, Dominique; Sein, Emmanuel; Nakagawa, Takao; Kaneda, Hidehiro; Onaka, Takashi; Hirabayashi, Masayuki; Narasaki, Katsuhiro; Sakuta, Hironobu; Miura, Shinji

2004-10-01

Placed on the L2 Lagrangian point, the Space Infrared Telescope for Cosmology and Astrophysics (SPICA) will operate in the 5 to 200 μm wavelength range, at 4.5K. The large aperture telescope (3.5m diameter in a single piece) requires a strong manufacturing mastering, associated with high technical performances. The background acquired by EADS-Astrium (France) on the 3.5m Silicone Carbide Herschel Telescope is a key for the success of the SPICA development. EADS-Astrium has been awarded by the Japan Aerospace Exploration Agency (JAXA) and Sumitomo Heavy Industries to assess the feasibility of the 3.5m all SiC telescope through a design phase contract. The Telescope driving requirements are the large diameter of 3.5m especially critical for the manufacturing aspects, and the Wave Front Error which has to be kept below 350nm rms over a large temperature range from ambient to the operational temperature of 4.5K which requires a strong mastering of the distortions.

Technical aspects of virtual liver resection planning.

PubMed

Glombitza, G; Lamadé, W; Demiris, A M; Göpfert, M R; Mayer, A; Bahner, M L; Meinzer, H P; Richter, G; Lehnert, T; Herfarth, C

1998-01-01

Operability of a liver tumor is depending on its three dimensional relation to the intrahepatic vascular trees which define autonomously functioning liver (sub-)segments. Precise operation planning is complicated by anatomic variability, distortion of the vascular trees by the tumor or preceding liver resections. Because of the missing possibility to track the deformation of the liver during the operation an integration of the resection planning system into an intra-operative navigation system is not feasible. So the main task of an operation planning system in this domain is a quantifiable patient selection by exact prediction of post-operative liver function and a quantifiable resection proposal. The system quantifies the organ structures and resection volumes by means of absolute and relative values. It defines resection planes depending on security margins and the vascular trees and presents the data in visualized form as a 3D movie. The new 3D operation planning system offers quantifiable liver resection proposals based on individualized liver anatomy. The results are visualized in digital movies as well as in quantitative reports.

Based on the development status of British BIM, exploring China’s BIM road

NASA Astrophysics Data System (ADS)

Tiangang, Chu; hui, Li; shanjun, Zhang; Ningshan, Jiang; Dan, Zhang; Yu, Zhang; Guibo, Bao

2018-05-01

This article mainly analyses the development and application status and development trend of BIM technology after the implementation of the British government, to explore the policies and methods that our government should carry out in the development of BIM. The article also summarizes and analyses the relevant policies and standards implemented by various provincial and municipal governments in promoting BIM technology in China and summarizes the strengths and weaknesses of each other by comparing the development status of the implementation of BIM policies in various provinces and cities. The article also analysed the obstacles encountered in the implementation of some specific projects at the current stage of BIM technology, and summarized the feasible solutions. The article mainly analyses the application prospects of BIM from the technical aspects of design, the application of technology in the construction process, and the strategic implementation and operation of the company, and provides a reference for promoting the application of BIM in the construction industry in China, especially in the western region.

Technical and Energy Performance of an Advanced, Aqueous Ammonia-Based CO2 Capture Technology for a 500 MW Coal-Fired Power Station.

PubMed

Li, Kangkang; Yu, Hai; Feron, Paul; Tade, Moses; Wardhaugh, Leigh

2015-08-18

Using a rate-based model, we assessed the technical feasibility and energy performance of an advanced aqueous-ammonia-based postcombustion capture process integrated with a coal-fired power station. The capture process consists of three identical process trains in parallel, each containing a CO2 capture unit, an NH3 recycling unit, a water separation unit, and a CO2 compressor. A sensitivity study of important parameters, such as NH3 concentration, lean CO2 loading, and stripper pressure, was performed to minimize the energy consumption involved in the CO2 capture process. Process modifications of the rich-split process and the interheating process were investigated to further reduce the solvent regeneration energy. The integrated capture system was then evaluated in terms of the mass balance and the energy consumption of each unit. The results show that our advanced ammonia process is technically feasible and energy-competitive, with a low net power-plant efficiency penalty of 7.7%.

Design for effective development and prototyping of the HL-20

NASA Astrophysics Data System (ADS)

Urie, David M.; Floreck, Paul A.; McMorris, John A.; Elvin, John D.

1993-10-01

A feasibility study of the HL-20 personnel launch system (PLS) concept was conducted by a team which focused on creating a PLS design approach and an accelerated development plan consistent with the historical 'Skunk Works' approach to rapid prototyping. Technical design, manufacturing, system testing, and operations and support elements of the predefined baseline concept were evaluated. An initial phase program, featuring a concurrent system test during design and development, leading to the orbital flight of an unmanned HL-20 prototype on a Titan III launch system, was prescribed. A second-phase development and manufacturing plan leading to system operational status was also formulated. Baseline design feature modifications were made when necessary, without compromise to performance, to satisfy the prototype development plan. Technical design details and off-the-shelf hardware candidates were also identified for several subsystems, including the launch-system interface adapter/emergency escape system. The technical feasibility of the system and applicability of the Skunk Works approach to development of the HL-20/PLS were verified.

Technical and Economic Assessment of the Implementation of Measures for Reducing Energy Losses in Distribution Systems

NASA Astrophysics Data System (ADS)

Aguila, Alexander; Wilson, Jorge

2017-07-01

This paper develops a methodology to assess a group of measures of electrical improvements in distribution systems, starting from the complementation of technical and economic criteria. In order to solve the problem of energy losses in distribution systems, technical and economic analysis was performed based on a mathematical model to establish a direct relationship between the energy saved by way of minimized losses and the costs of implementing the proposed measures. This paper aims at analysing the feasibility of reducing energy losses in distribution systems, by changing existing network conductors by larger crosssection conductors and distribution voltage change at higher levels. The impact of this methodology provides a highly efficient mathematical tool for analysing the feasibility of implementing improvement projects based on their costs which is a very useful tool for the distribution companies that will serve as a starting point to the analysis for this type of projects in distribution systems.

Technical and Economic Assessment of Span-Loaded Cargo Aircraft Concepts

NASA Technical Reports Server (NTRS)

1976-01-01

The benefits are assessed of span distributed loading concepts as applied to future commercial air cargo operations. A two phased program is used to perform this assessment. The first phase consists of selected parametric studies to define significant configuration, performance, and economic trends. The second phase consists of more detailed engineering design, analysis, and economic evaluations to define the technical and economic feasibility of a selected spanloader design. A conventional all-cargo aircraft of comparable technology and size is used as a comparator system. The technical feasibility is demonstrated of the spanloader concept with no new major technology efforts required to implement the system. However, certain high pay-off technologies such as winglets, airfoil design, and advanced structural materials and manufacturing techniques need refinement and definition prior to application. In addition, further structural design analysis could establish the techniques and criteria necessary to fully capitalize upon the high degree of structural commonality and simplicity inherent in the spanloader concept.

Rail accelerator technology and applications

NASA Technical Reports Server (NTRS)

Zana, L. M.; Kerslake, W. R.

1985-01-01

Rail accelerators offer a viable means of launching ton-size payloads from the Earth's surface to space. The results of two mission studies which indicate that an Earth-to-Space Rail Launcher (ESRL) system is not only technically feasible but also economically beneficial, particularly when large amounts of bulk cago are to be delivered to space are given. An in-house experimental program at the Lewis Research Center (LeRC) was conducted in parallel with the mission studies with the objective of examining technical feasibility issues. A 1 m long - 12.5 by 12.5 mm bore rail accelerator as designed with clear polycarbonate sidewalls to visually observe the plasma armature acceleration. The general character of plasma/projectile dynamics is described for a typical test firing.

Technical/commercial feasibility study of the production of fuel-grade ethanol from corn: 100-million-gallon-per-year production facility in Myrtle Grove, Louisiana

NASA Astrophysics Data System (ADS)

1982-05-01

The technical and economic feasibility of producing motor fuel alcohol from corn in a 100 million gallon per year plant to be constructed in Myrtle Grove, Louisiana is evaluated. The evaluation includes a detailed process design using proven technology, a capital cost estimate for the plant, a detailed analysis of the annual operating cost, a market study, a socioeconomic, environmental, health and safety analysis, and a complete financial analysis. Several other considerations for production of ethanol were evaluated including: cogeneration and fuel to be used in firing the boilers; single by-products vs. multiple by-products; and use of boiler flue gas for by-product drying.

Evaluating Self-Funded Health Insurance for the Lakeshore Technical Institute as a Cost-Containment Measure.

ERIC Educational Resources Information Center

Holstein, Karen E.

In response to the rising costs of health care and large increases in insurance premiums, a study was conducted at Lakeshore Technical Institute (LTI) to investigate the feasibility of using a self-funded health insurance plan at the college. Data were obtained through a literature review; telephone and on-site discussions with a personnel…

Technical review of the da Vinci surgical telemanipulator.

PubMed

Freschi, C; Ferrari, V; Melfi, F; Ferrari, M; Mosca, F; Cuschieri, A

2013-12-01

The da Vinci robotic surgical telemanipulator has been utilized in several surgical specialties for varied procedures, and the users' experiences have been widely published. To date, no detailed system technical analyses have been performed. A detailed review was performed of all publications and patents about the technical aspects of the da Vinci robotic system. Published technical literature on the da Vinci system highlight strengths and weaknesses of the robot design. While the system facilitates complex surgical operations and has a low malfunction rate, the lack of haptic (especially tactile) feedback and collisions between the robotic arms remain the major limitations of the system. Accurate, preplanned positioning of access ports is essential. Knowledge of the technical aspects of the da Vinci robot is important for optimal use. We confirmed the excellent system functionality and ease of use for surgeons without an engineering background. Research and development of the surgical robot has been predominant in the literature. Future trends address robot miniaturization and intelligent control design. Copyright © 2012 John Wiley & Sons, Ltd.

Feasibility of Using Video Cameras for Automated Enforcement on Red-Light Running and Managed Lanes.

DOT National Transportation Integrated Search

2009-12-01

The overall objective of this study is to evaluate the feasibility, effectiveness, legality, and public acceptance aspects of automated enforcement on red light running and high occupancy vehicle (HOV) occupancy requirement using video cameras in Nev...

Finance Program, Technical Assistance Brief 1

DOT National Transportation Integrated Search

1993-01-01

This four page pamphlet highlights the work of the Federal Transit : Administration's Office of Technical Assistance and Safety. Articles in this : issue are: Transit's Finance Challenge, which discusses the three main aspects : of the Office's Finan...

Large-scale CO2 storage — Is it feasible?

NASA Astrophysics Data System (ADS)

Johansen, H.

2013-06-01

CCS is generally estimated to have to account for about 20% of the reduction of CO2 emissions to the atmosphere. This paper focuses on the technical aspects of CO2 storage, even if the CCS challenge is equally dependent upon finding viable international solutions to a wide range of economic, political and cultural issues. It has already been demonstrated that it is technically possible to store adequate amounts of CO2 in the subsurface (Sleipner, InSalah, Snøhvit). The large-scale storage challenge (several Gigatons of CO2 per year) is more an issue of minimizing cost without compromising safety, and of making international regulations.The storage challenge may be split into 4 main parts: 1) finding reservoirs with adequate storage capacity, 2) make sure that the sealing capacity above the reservoir is sufficient, 3) build the infrastructure for transport, drilling and injection, and 4) set up and perform the necessary monitoring activities. More than 150 years of worldwide experience from the production of oil and gas is an important source of competence for CO2 storage. The storage challenge is however different in three important aspects: 1) the storage activity results in pressure increase in the subsurface, 2) there is no production of fluids that give important feedback on reservoir performance, and 3) the monitoring requirement will have to extend for a much longer time into the future than what is needed during oil and gas production. An important property of CO2 is that its behaviour in the subsurface is significantly different from that of oil and gas. CO2 in contact with water is reactive and corrosive, and may impose great damage on both man-made and natural materials, if proper precautions are not executed. On the other hand, the long-term effect of most of these reactions is that a large amount of CO2 will become immobilized and permanently stored as solid carbonate minerals. The reduced opportunity for direct monitoring of fluid samples close to the reservoir, the general pressure build up, and the reactive nature of CO2, have created a need for new research and knowledge, to be used in conjunction with operating competence from the oil and gas industry. Experimental work on fluid flow, deformation and reaction, as well as simulations to predict the future performance of the injected CO2, are much more important in connection with CO2 storage, as compared with conventional oil and gas production. To conclude this overview of the CO2 storage challenge, the technical feasibility of large-scale CO2 storage has been demonstrated. The cost is however going to be significant, especially in the initial phase. The public acceptance of CCS, and the willingness to pay the bill, will depend on several important factors: a serious acceptance of the climate problem, economic and political regulations that are globally fair, and the willingness of each and one of us to accept a higher price for energy.

High-End Concept Based on Hypersonic Two-Stage Rocket and Electro-Magnetic Railgun to Launch Micro-Satellites Into Low-Earth

NASA Astrophysics Data System (ADS)

Bozic, O.; Longo, J. M.; Giese, P.; Behren, J.

2005-02-01

The electromagnetic railgun technology appears to be an interesting alternative to launch small payloads into Low Earth Orbit (LEO), as this may introduce lower launch costs. A high-end solution, based upon present state of the art technology, has been investigated to derive the technical boundary conditions for the application of such a new system. This paper presents the main concept and the design aspects of such propelled projectile with special emphasis on flight mechanics, aero-/thermodynamics, materials and propulsion characteristics. Launch angles and trajectory optimisation analyses are carried out by means of 3 degree of freedom simulations (3DOF). The aerodynamic form of the projectile is optimised to provoke minimum drag and low heat loads. The surface temperature distribution for critical zones is calculated with DLR developed Navier-Stokes codes TAU, HOTSOSE, whereas the engineering tool HF3T is used for time dependent calculations of heat loads and temperatures on project surface and inner structures. Furthermore, competing propulsions systems are considered for the rocket engines of both stages. The structural mass is analysed mostly on the basis of carbon fibre reinforced materials as well as classical aerospace metallic materials. Finally, this paper gives a critical overview of the technical feasibility and cost of small rockets for such missions. Key words: micro-satellite, two-stage-rocket, railgun, rocket-engines, aero/thermodynamic, mass optimization

Single-Incision Multiport/Single Port Laparoscopic Abdominal Surgery (SILAP): A Prospective Multicenter Observational Quality Study.

PubMed

Mantke, Rene; Diener, Markus; Kropf, Siegfried; Otto, Ronny; Manger, Thomas; Vestweber, Boris; Mirow, Lutz; Winde, Günther; Lippert, Hans

2016-09-07

Increasing experience with minimally invasive surgery and the development of new instruments has resulted in a tendency toward reducing the number of abdominal skin incisions. Retrospective and randomized prospective studies could show the feasibility of single-incision surgery without any increased risk to the patient. However, large prospective multicenter observational datasets do not currently exist. This prospective multicenter observational quality study will provide a relevant dataset reflecting the feasibility and safety of single-incision surgery. This study focuses on external validity, clinical relevance, and the patients' perspective. Accordingly, the single-incision multiport/single port laparoscopic abdominal surgery (SILAP) study will supplement the existing evidence, which does not currently allow evidence-based surgical decision making. The SILAP study is an international prospective multicenter observational quality study. Mortality, morbidity, complications during surgery, complications postoperatively, patient characteristics, and technical aspects will be monitored. We expect more than 100 surgical centers to participate with 5000 patients with abdominal single-incision surgery during the study period. Funding was obtained in 2012. Enrollment began on January 01, 2013, and will be completed on December 31, 2018. As of January 2016, 2119 patients have been included, 106 German centers are registered, and 27 centers are very active (>5 patients per year). This prospective multicenter observational quality study will provide a relevant dataset reflecting the feasibility and safety of single-incision surgery. An international enlargement and recruitment of centers outside of Germany is meaningful. German Clinical Trials Register: DRKS00004594; https://drks-neu.uniklinik-freiburg.de/drks_web/navigate.do?navigationId=trial.HTML&TRIAL_ID=DRKS00004594 (Archived by WebCite at http://www.webcitation.org/6jK6ZVyUs).

Rectal forceps biopsy procedure in cystic fibrosis: technical aspects and patients perspective for clinical trials feasibility

PubMed Central

2013-01-01

Background Measurements of CFTR function in rectal biopsies ex vivo have been used for diagnosis and prognosis of Cystic Fibrosis (CF) disease. Here, we aimed to evaluate this procedure regarding: i) viability of the rectal specimens obtained by biopsy forceps for ex vivo bioelectrical and biochemical laboratory analyses; and ii) overall assessment (comfort, invasiveness, pain, sedation requirement, etc.) of the rectal forceps biopsy procedure from the patients perspective to assess its feasibility as an outcome measure in clinical trials. Methods We compared three bowel preparation solutions (NaCl 0.9%, glycerol 12%, mannitol), and two biopsy forceps (standard and jumbo) in 580 rectal specimens from 132 individuals (CF and non-CF). Assessment of the overall rectal biopsy procedure (obtained by biopsy forceps) by patients was carried out by telephone surveys to 75 individuals who underwent the sigmoidoscopy procedure. Results Integrity and friability of the tissue specimens correlate with their transepithelial resistance (r = −0.438 and −0.305, respectively) and are influenced by the bowel preparation solution and biopsy forceps used, being NaCl and jumbo forceps the most compatible methods with the electrophysiological analysis. The great majority of the individuals (76%) did not report major discomfort due to the short procedure time (max 15 min) and considered it relatively painless (79%). Importantly, most (88%) accept repeating it at least for one more time and 53% for more than 4 times. Conclusions Obtaining rectal biopsies with a flexible endoscope and jumbo forceps after bowel preparation with NaCl solution is a safe procedure that can be adopted for both adults and children of any age, yielding viable specimens for CFTR bioelectrical/biochemical analyses. The procedure is well tolerated by patients, demonstrating its feasibility as an outcome measure in clinical trials. PMID:23688510

Rectal forceps biopsy procedure in cystic fibrosis: technical aspects and patients perspective for clinical trials feasibility.

PubMed

Servidoni, Maria F; Sousa, Marisa; Vinagre, Adriana M; Cardoso, Silvia R; Ribeiro, Maria A; Meirelles, Luciana R; de Carvalho, Rita B; Kunzelmann, Karl; Ribeiro, Antônio F; Ribeiro, José D; Amaral, Margarida D

2013-05-20

Measurements of CFTR function in rectal biopsies ex vivo have been used for diagnosis and prognosis of Cystic Fibrosis (CF) disease. Here, we aimed to evaluate this procedure regarding: i) viability of the rectal specimens obtained by biopsy forceps for ex vivo bioelectrical and biochemical laboratory analyses; and ii) overall assessment (comfort, invasiveness, pain, sedation requirement, etc.) of the rectal forceps biopsy procedure from the patients perspective to assess its feasibility as an outcome measure in clinical trials. We compared three bowel preparation solutions (NaCl 0.9%, glycerol 12%, mannitol), and two biopsy forceps (standard and jumbo) in 580 rectal specimens from 132 individuals (CF and non-CF). Assessment of the overall rectal biopsy procedure (obtained by biopsy forceps) by patients was carried out by telephone surveys to 75 individuals who underwent the sigmoidoscopy procedure. Integrity and friability of the tissue specimens correlate with their transepithelial resistance (r = -0.438 and -0.305, respectively) and are influenced by the bowel preparation solution and biopsy forceps used, being NaCl and jumbo forceps the most compatible methods with the electrophysiological analysis. The great majority of the individuals (76%) did not report major discomfort due to the short procedure time (max 15 min) and considered it relatively painless (79%). Importantly, most (88%) accept repeating it at least for one more time and 53% for more than 4 times. Obtaining rectal biopsies with a flexible endoscope and jumbo forceps after bowel preparation with NaCl solution is a safe procedure that can be adopted for both adults and children of any age, yielding viable specimens for CFTR bioelectrical/biochemical analyses. The procedure is well tolerated by patients, demonstrating its feasibility as an outcome measure in clinical trials.

Feasibility assessment of electrocoagulation towards a new sustainable wastewater treatment.

PubMed

Rodriguez, Jackson; Stopić, Srećko; Krause, Gregor; Friedrich, Bernd

2007-11-01

Electrocoagulation (EC) may be a potential answer to environmental problems dealing with water reuse and rational waste management. The aim of this research was to assess the feasibility of EC-process for industrial contaminated effluents from copper production, taking into consideration technical and economical factors. EC-technology claims to offer efficient removal rates for most types of wastewater impurities at low power consumption and without adding any precipitating agents. Real wastewater from Saraka stream with high concentrations of heavy metals was provided by RTB-BOR, a Serbian copper mining and smelting complex. Runs were performed on a 10 l EC-reactor using aluminum plates as sacrificial electrodes and powered by a 40 A supply unit. Results concerning key factors like pH, conductivity and power consumption were measured in real time. Analysis of dissolved metal concentrations before and after treatment were carried out via ICP-OES and confirmed by an independent test via AAS. Several aspects were taken into account, including current density, conductivity, interfacial resistivity and reactor settings throughout the runs, in order to analyze all possible factors playing a role in neutralization and metal removal in real industrial wastewater. Electrode configurations and their effects on energy demand were discussed and exemplified based on fundamentals of colloidal and physical chemistry. Based on experimental data and since no precipitating agents were applied, the EC-process proved to be not only feasible and environmentally-friendly, but also a cost-effective technology The EC-technology provides strategic guidelines for further research and development of sustainable water management processes. However, additional test series concerning continuous operation must be still performed in order to get this concept ready for future large-scale applications.

The feasibility of measuring and monitoring social determinants of health and the relevance for policy and programme – a qualitative assessment of four countries

PubMed Central

Blas, Erik; Ataguba, John E.; Huda, Tanvir M.; Bao, Giang Kim; Rasella, Davide; Gerecke, Megan R.

2016-01-01

Background Since the publication of the reports by the Commission on Social Determinants of Health (CSDH), many research papers have documented inequities, explaining causal pathways in order to inform policy and programmatic decision-making. At the international level, the sustainable development goals (SDGs) reflect an attempt to bring together these themes and the complexities involved in defining a comprehensive development framework. However, to date, much less has been done to address the monitoring challenges, that is, how data generation, analysis and use are to become routine tasks. Objective To test proposed indicators of social determinants of health (SDH), gender, equity, and human rights with respect to their relevance in tracking progress in universal health coverage and population health (level and distribution). Design In an attempt to explore these monitoring challenges, indicators covering a wide range of social determinants were tested in four country case studies (Bangladesh, Brazil, South Africa, and Vietnam) for their technical feasibility, reliability, and validity, and their communicability and usefulness to policy-makers. Twelve thematic domains with 20 core indicators covering different aspects of equity, human rights, gender, and SDH were tested through a review of data sources, descriptive analyses, key informant interviews, and focus group discussions. To test the communicability and usefulness of the domains, domain narratives that explained the causal pathways were presented to policy-makers, managers, the media, and civil society leaders. Results For most countries, monitoring is possible, as some data were available for most of the core indicators. However, a qualitative assessment showed that technical feasibility, reliability, and validity varied across indicators and countries. Producing understandable and useful information proved challenging, and particularly so in translating indicator definitions and data into meaningful lay and managerial narratives, and effectively communicating links to health and ways in which the information could improve decision-making. Conclusions This exercise revealed that for monitoring to produce reliable data collection, analysis, and discourse, it will need to be adapted to each national context and institutionalised into national systems. This will require that capacities and resources for this and subsequent communication of results are increased across countries for both national and international monitoring, including the successful implementation of the SDGs. PMID:26853897

Economic feasibility of producing inside-out beams from small-diameter logs

Treesearch

David W. Patterson; Richard A. Kluender; James E. Granskog

2002-01-01

Previous work has shown that it is technically feasible to produce inside-out (ISO) beams by taking small-diameter (5 to 7 in.) logs, slabbing four sides, quartering the cant, and turning the quarters inside out and gluing them together. After drying, the beams were found to be straight, with no cracks, and of equal or better mechanical properties than solid sawn...

DETERMINE THE FEASIBILITY OF DEVELOPING A MODEL DESCRIBING THE FLOW OF OCCUPATIONAL AND ECONOMIC INFORMATION INTO THE SECONDARY VOCATIONAL-TECHNICAL SCHOOL. FINAL REPORT.

ERIC Educational Resources Information Center

SILVERN, LEONARD C.

THE MAJOR OBJECTIVES OF THIS FEASIBILITY STUDY WERE (1) TO IDENTIFY INFORMATION SOURCES WHICH FURNISH OCCUPATIONAL AND ECONOMIC DATA TO SECONDARY SCHOOLS, (2) TO SELECT THOSE SOURCES WHICH ARE BELIEVED TO HAVE A MEASURABLE INFLUENCE ON THE VOCATIONAL CURRICULUM, AND (3) TO CATEGORIZE, RELATE, AND COMBINE OR RESTRUCTURE THOSE SOURCES INTO A…

Ten bar probe technical summary. [feasibility of outer planet common atmospheric probe

NASA Technical Reports Server (NTRS)

Ellis, T. R.

1974-01-01

The feasibility of an outer planet common atmospheric probe is studied with emphasis on entry heating rates and improved ephemeris. It is concluded that a common probe design is possible except for Jupiter; the basic technology exists except for Jupiter heat shielding. A Mariner class bus provides for better bus science and probe bus communications than a Pioneer class bus.

Feasibility of Using Video Camera for Automated Enforcement on Red-Light Running and Managed Lanes.

DOT National Transportation Integrated Search

2009-12-25

The overall objective of this study is to evaluate the feasibility, effectiveness, legality, and public acceptance aspects of automated enforcement on red light running and HOV occupancy requirement using video cameras in Nevada. This objective was a...

Feasibility of a Latin Dance Program for Older Latinos With Mild Cognitive Impairment.

PubMed

Aguiñaga, Susan; Marquez, David X

2017-12-01

This study investigates the feasibility of a Latin dance program in older Latinos with mild cognitive impairment (MCI) via a feasibility mixed methods randomized controlled design. Spanish-speaking older Latinos (N = 21, 75.4 [6.3] years old, 16 females/5 males, 22.4 [2.8] Mini-Mental State Examination [MMSE] score) were randomized into a 16-week dance intervention (BAILAMOS) or wait-list control; the control group crossed over at week 17 and received the dance intervention. Feasibility was determined by assessing reach, retention, attendance, dance logs, and postintervention focus groups. Reach was 91.3% of people who were screened and eligible. Program retention was 95.2%. The dropout rate was 42.8% (n = 9), and attendance for all participants was 55.76%. The focus group data revealed 4 themes: enthusiasm for dance, positive aspects of BAILAMOS, unfavorable aspects of BAILAMOS, and physical well-being after BAILAMOS. In conclusion, older Latinos with MCI find Latin dance as an enjoyable and safe mode of physical activity.

Review of PREPA Technical Requirements for Interconnecting Wind and Solar Generation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gevorgian, Vahan; Booth, Sarah

2013-11-01

The Puerto Rico Electric Power Authority developed the minimum technical requirements for interconnection of wind turbine generation and photovoltaic power plants. NREL has conducted a review of these requirements based on generic technical aspects and electrical characteristics of wind and photovoltaic power plants, and on existing requirements from other utilities (both U.S. and European).

Plantation establishment: site preparation and tree planting methods

Treesearch

J. W. Van Sambeek

2008-01-01

The Silviculture and Ecology of the Central Hardwoods research unit of the USDA Forest Service is developing a series of technical notes for the management of forest lands in the Midwest. Many of the technical notes on different aspects of hardwood plantation establishment have been completed. At the request of the editor, the technical notes for site preparation, slit...

A WET TALE: TOXICITY OF COMPLEX EFFLUENTS

EPA Science Inventory

This course covers standards, regulations, policy, guidance and technical aspects of implementing the whole effluent toxicity program. The curriculum incorporates rationale and information on WET test requirements from USEPA documents, such as the Technical Support Document for W...

Feasibility study for the Swaziland/Mozambique interconnector. EPC specifications. Export trade information

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1997-11-01

This study, conducted by Black & Veatch, was funded by the U.S. Trade and Development Agency. The report, produced for the Ministry of National Resources, Energy and Environment (MNRE) of Swaziland, determines the least cost capacity expansion option to meet the future power demand and system reliability criteria of Swaziland, with particular emphasis on the proposed Interconnector between Swaziland and Mozambique. Volume 3 contains EPC Specifications and is divided into the following divisions: (1) Commercial; (2) General Technical Requirements; (3) Transmission Line Technical Requirements; (4) Substation Technical Requirements; (5) Specifications.

Single-step simultaneous side-by-side placement of a self-expandable metallic stent with a 6-Fr delivery system for unresectable malignant hilar biliary obstruction: a feasibility study.

PubMed

Kawakubo, Kazumichi; Kawakami, Hiroshi; Kuwatani, Masaki; Kudo, Taiki; Abe, Yoko; Kawahata, Shuhei; Kubo, Kimitoshi; Kubota, Yoshimasa; Sakamoto, Naoya

2015-02-01

Bilateral self-expandable metallic stent (SEMS) placement for the management of unresectable malignant hilar biliary obstruction (UMHBO) is technically challenging to perform using the existing metallic stents with thick delivery systems. The recently developed 6-Fr delivery systems could facilitate a single-step simultaneous side-by-side placement through the accessory channel of the duodenoscope. The aim of this study was to evaluate the feasibility of this procedure. Between May and September 2013, 13 consecutive patients with UMHBO underwent a single-step simultaneous side-by-side placement of SEMS with the 6-Fr delivery system. The technical success rate, stent patency, and rate of complications were evaluated from the prospectively collected database. Technical success was achieved in 11 (84.6%, 95% confidence interval [CI]: 57.8-95.8) patients. The median procedure time was 25 min. Early and late complications were observed in 23% (one segmental cholangitis and two liver abscesses) and 15% (one segmental cholangitis and one cholecystitis) patients, respectively. Median dysfunction free patency was 263 days (95% CI: 37-263). Five patients (38%) experienced stent occlusion that was successfully managed by endoscopic stent placement. A single-step simultaneous side-by-side placement of SEMS with a 6-Fr delivery system was feasible for the management of UMHBO. © 2014 Japanese Society of Hepato-Biliary-Pancreatic Surgery.

Fuel cells feasibility

NASA Technical Reports Server (NTRS)

Schonfeld, D.; Charng, T.

1981-01-01

The technical and economic status of fuel cells is assessed with emphasis on their potential benefits to the Deep Space Network. The fuel cell, what it is, how it operates, and what its outputs are, is reviewed. Major technical problems of the fuel cell and its components are highlighted. Due to these problems and economic considerations it is concluded that fuel cells will not become commercially viable until the early 1990s.

A Planning Study for the Conversion of Recorded Books and Magazines from Rigid Discs to Cassettes and Flexible Discs. Final Report.

ERIC Educational Resources Information Center

Innovative Systems Research, Inc., Pennsauken, NJ.

Twelve different conversion plans were delineated and evaluated in the performance of this study effort. An indepth technical, financial, and cost/benefit analysis was included. One plan was determined to be distinctively more cost-effective than any of the other plans because it provided a technically feasible system that assured the maximum…

Solar power satellite system definition study. Volume 1, phase 1: Executive summary

NASA Technical Reports Server (NTRS)

1979-01-01

A systems definition study of the solar satellite system (SPS) is presented. The technical feasibility of solar power satellites based on forecasts of technical capability in the various applicable technologies is assessed. The performance, cost, operational characteristics, reliability, and the suitability of SPS's as power generators for typical commercial electricity grids are discussed. The uncertainties inherent in the system characteristics forecasts are assessed.

Technical Feasibility Study of an Effective Low-Toxicity Obscurant Material

DTIC Science & Technology

2012-08-01

2. REPORT TYPE FINAL 3. DATES COVERED (From - To) 04/2011 – 07/2012 4 . TITLE AND SUBTITLE 5a. CONTRACT NUMBER W912HQ-11-C-0034 Technical...6 4 Work Package 3 – Laboratory-scale tests...chemistry to sea-salt aerosol. 4 The major component of sea-salt is sodium chloride. Sodium chloride can be very simply generated by the combustion

An Investigation Into the Feasibility of Merging Three Technical Processing Operations Into One Central Unit.

ERIC Educational Resources Information Center

Burns, Robert W., Jr.

Three contiguous schools in the upper midwest--a teacher's training college and a private four-year college in one state, and a land-grant university in another--were studied to see if their libraries could merge one of their major divisions--technical services--into a single administrative unit. Potential benefits from such a merger were felt to…

A Pilot Research Project to Determine the Feasibility of Developing Health Related Occupations Curricula at Nicolet College and Technical Institute. Final Report.

ERIC Educational Resources Information Center

Maney, Thomas J.; Boyd, Linda

Personal interviews with each employer of health care workers in the Nicolet Vocational, Technical and Adult Education (VTAE) District were conducted to determine: (1) the extent of need for trained health occupations personnel in the district; (2) the projected need for such personnel in the future; (3) which specific health occupations currently…

Analysis of Hydropower Potential Utilization of Watercourses in Slovakia

NASA Astrophysics Data System (ADS)

Gejguš, Mirko; Aschbacher, Christine; Sablik, Jozef

2017-09-01

This article analyzes the hydropower potential of watercourses in Slovakia, defining water as the most promising and most used renewable energy source. The hydro-energetic potential as a source of energy is determined by the calculation of the technically feasible potential of the watercourses, which is divided into exploited and unused. It also identifies the potential of utilizing the unused technical hydro-energetic potential.

EVALUATION OF THE EFFECTS ON BENTHIC ORGANISMS FROM CLAY FLOCCULATION OF RED TIDE ORGANISMS

EPA Science Inventory

Evaluating the feasibility of controlling red tide using clay flocculation is part of an ECOHAB-funded project. One aspect for the feasibility and future application of clays is the determination of potential negative environmental impacts. The removal of toxin-containing dinofl...

Amelioration and retrofitting of educational buildings

NASA Astrophysics Data System (ADS)

Casciati, Fabio; Casciati, Sara

2018-01-01

Following a seismic event that occurred years ago in Central Italy, the public opinion was growing and growing a concern on the adequacy of educational buildings all across Italy. This activated several political decisions and a consequent technical effort is in progress. Technically speaking one has to manage the classical problem of retrofitting existing buildings. However, the legal environment goes across national codes, targeted guidelines and the professional need of achieving pragmatic solutions based on ethical and social acceptation schemes.This paper introduces the topic in its worldwide exception and focuses then on some operative aspects in the Italian situation. It outlines the consolidated steps along this technical process and emphasizes the weak aspects one meets when going across the designers' reports.

Cape Blanco wind farm feasibility study

NASA Astrophysics Data System (ADS)

1987-11-01

The Cape Blanco Wind Farm (CBWF) Feasibility Study was undertaken as a prototype for determining the feasibility of proposals for wind energy projects at Northwest sites. It was intended to test for conditions under which wind generation of electricity could be commercially feasible, not by another abstract survey of alternative technologies, but rather through a site-specific, machine-specific analysis of one proposal. Some of the study findings would be most pertinent to the Cape Blanco site - local problems require local solutions. Other findings would be readily applicable to other sites and other machines, and study methodologies would be designed to be modified for appraisal of other proposals. This volume discusses environmental, economic, and technical issues of the Wind Farm.

Phase I/II prospective trial of cancer-specific imaging using ultrasound spectrum analysis tissue-type imaging to guide dose-painting prostate brachytherapy.

PubMed

Ennis, Ronald D; Quinn, S Aidan; Trichter, Frieda; Ryemon, Shannon; Jain, Anudh; Saigal, Kunal; Chandrashekhar, Sarayu; Romas, Nicholas A; Feleppa, Ernest J

2015-01-01

To assess the technical feasibility, toxicity, dosimetry, and preliminary efficacy of dose-painting brachytherapy guided by ultrasound spectrum analysis tissue-type imaging (TTI) in low-risk, localized prostate cancer. Fourteen men with prostate cancer who were candidates for brachytherapy as sole treatment were prospectively enrolled. Treatment planning goal was to escalate the tumor dose to 200% with a modest de-escalation of dose to remaining prostate compared with our standard. Primary end points included technical feasibility of TTI-guided brachytherapy and equivalent or better toxicity compared with standard brachytherapy. Secondary end points included dose escalation to tumor regions and de-escalated dose to nontumor regions on the preimplant plan, negative prostate biopsy at 2 years, and freedom from biochemical failure. Thirteen of fourteen men successfully completed the TTI-guided brachytherapy procedure for a feasibility rate of 93%. A software malfunction resulted in switching one patient from TTI-guided to standard brachytherapy. An average of 2.7 foci per patient was demonstrated and treated with an escalated dose. Dosimetric goals on preplan were achieved. One patient expired from unrelated causes 65 days after brachytherapy. Toxicity was at least as low as standard brachytherapy. Two-year prostate biopsies were obtained from six men; five (83%) were definitively negative, one showed evidence of disease with treatment effect, and none were positive. No patients experienced biochemical recurrence after a median followup of 31.5 (24-52) months. We have demonstrated that TTI-guided dose-painting prostate brachytherapy is technically feasible and results in clinical outcomes that are encouraging in terms of low toxicity and successful biochemical disease control. Copyright © 2015 American Brachytherapy Society. Published by Elsevier Inc. All rights reserved.

Replacing fossil based plastic performance products by bio-based plastic products-Technical feasibility.

PubMed

van den Oever, Martien; Molenveld, Karin

2017-07-25

Larger scale market introduction of new bio-based products requires a clear advantage regarding sustainability, as well as an adequate techno-economic positioning relative to fossil based products. In a previous paper [Broeren et al., 2016], LCA results per kg and per functionality equivalent of bio-based plastics were presented, together with economic considerations. The present paper discusses the mechanical and thermal properties of a range of commercially available bio-based plastics based on polylactic acid (PLA), cellulose esters, starch and polyamides, and the feasibility of replacing fossil-based counterparts based on performance. The evaluation is approached from an end user perspective. First, potentially suitable bio-based plastics are selected based on manufacturers' specifications in technical data sheets, then a first experimental evaluation is performed on injection moulded ISO specimens, and finally a further selection of plastics is tested on large 50×70cm panels. This technical feasibility study indicates that so far bio-based plastics do not completely match the properties of high performance materials like flame retardant V-0 PC/ABS blends used in electronic devices. The performance gap is being decreased by the development of stereocomplex PLA and hybrid PLA blends with polycarbonate, which offer clearly improved properties with respect to maximum usage temperature and toughness. In addition, several materials meet the V-0 flammability requirements needed in specific durable applications. On the other hand, improving these properties so far has negative consequences for the bio-based content. This study also shows that replacement of bulk polymers like PS is feasible using PLA compounds with a bio-based content as high as 85%. Copyright © 2016 Elsevier B.V. All rights reserved.

AgSTAR Market Opportunities Report

EPA Pesticide Factsheets

Assesses the market potential for biogas energy projects at swine and dairy farms in the United States and characterizes the sizes and types of operations where biogas projects are technically feasible.

A method of semi-quantifying β-AP in brain PET-CT 11C-PiB images.

PubMed

Jiang, Jiehui; Lin, Xiaoman; Wen, Junlin; Huang, Zhemin; Yan, Zhuangzhi

2014-01-01

Alzheimer's disease (AD) is a common health problem for elderly populations. Positron emission tomography-computed tomography (PET-CT)11C-PiB for beta-P (amyloid-β peptide, β-AP) imaging is an advanced method to diagnose AD in early stage. However, in practice radiologists lack a standardized value to semi-quantify β-AP. This paper proposes such a standardized value: SVβ-AP. This standardized value measures the mean ratio between the dimension of β-AP areas in PET and CT images. A computer aided diagnosis approach is also proposed to achieve SVβ-AP. A simulation experiment was carried out to pre-test the technical feasibility of the CAD approach and SVβ-AP. The experiment results showed that it is technically feasible.

Exciting story of the high-end television projection systems and the novel compact EIDOPHOR AE-12

NASA Astrophysics Data System (ADS)

Schulz-Hennig, Joerg F.

1998-04-01

With the new light valve technologies and availability of international broad-band communication channels high-end large screen TV projection is a highly growing contribution to the multi-media world of today. The exciting story already started 58 years ago with the invention of the EIDOPHOR diffractive oil light modulator. The long way to turn electronic cinema into a reality triggered novel applications, e.g. teleconferencing and real time surgery transmissions at universities. Several technical approaches of spatial light modulation were tried, and finally several different solutions are feasible to provide video projectors, meeting the requirements of the different display applications of today and tomorrow. The technical history is reviewed and the limitations and feasibilities of new technologies are presented in respect to existing and new applications.

Technical-Oriented Enterprise Resource Planning (ERP) Body of Knowledge for Information Systems Programs: Content and Implementation

ERIC Educational Resources Information Center

Boyle, Todd A.

2007-01-01

In this article, the author proposes a body of knowledge that the educators can use to incorporate the technical aspects of enterprise resource planning (ERP) into an information systems (IS) program, encapsulated as the ERP technical knowledge framework. To illustrate the application of this framework, the author discusses a course sequence that…

Feasibility Demonstration of Exciplex Fluorescence Measurements in Evaporating Laminar Sprays of Diesel Fuel

DTIC Science & Technology

2011-05-15

code) 1 FEASIBILITY DEMONSTRATION OF EXCIPLEX FLUORESCENCE MEASUREMENTS IN EVAPORATING LAMINAR SPRAYS OF DIESEL FUEL Final Technical Report Grant...fluorescence is found to increase with temperature up to 538 K and then declines. Fluorescence from the liquid phase, i.e. the exciplex (Naphthalene+TMPD...to have as well characterized a description of the spray environment and assess conclusively the potential of the exciplex approach for more

A study to examine the feasibility of using surface penetrators for mineral exploration

NASA Technical Reports Server (NTRS)

Davis, A. S.; Anderson, D. W.

1978-01-01

The feasibility of using penetrators in earth applications is examined. Penetrator applications in exploration for mineral resources only is summarized. Instrumentation for future penetrators is described. Portions of this report are incorporated into a more extensive report examining other penetrator applications in exploration for fossil fuels, geothermal resources, and in environmental and engineering problems, which is to be published as a NASA technical publication.

Technical Feasibility of Reporting YITS 2010 Skill Assessment Results on the PISA 2000 Reading Scale. OECD Education Working Papers, No. 69

ERIC Educational Resources Information Center

Cartwright, Fernando

2012-01-01

This study examines the feasibility of reporting scores of a test based on the Programme for International Student Assessment (PISA) 2000 instrument that was administered to a sample of 25-year-old Youth in Transition Survey (YITS) respondents on the PISA scale. Each of these respondents also participated in PISA 2000. The study examines the…

Feasibility Study of Improved Methods for Riverbank Stabilization

DTIC Science & Technology

1964-11-01

hose materials which appear to be technically feasible for such applications are listed in Tables I - 1 and I - 2. I-9 Artificial Riprap...the uncompacted asphalt pavement. Those which 1-11 show the most potential for further study are soil cement, synthetic elastomer sheeting, and...uncompated asphalt pavement. Chemical soil stabilization and metal sheeting are too exp~nsive, and the quality of chemically stabilized soil protection is

Dual-Mission Large Aircraft Feasibility Study and Aerodynamic Investigation

NASA Technical Reports Server (NTRS)

Mavris, Dimitri

1997-01-01

A Dual-Mission Large Aircraft, or DMLA, represents the possibility of a single aircraft capable of fulfilling both a Global Reach Aircraft (GRA) and Very Large Transport (VLT) roles. The DMLA, by combining the GRA and VLT into a single new aircraft, could possibly lower the aircraft manufacturer's production costs through the resulting increase in production quantity. This translates into lower aircraft acquisition costs, a primary concern for both the Air Force and commercial airlines. This report outlines the first steps taken in this study, namely the assessment of technical and economic feasibility of the DMLA concept. In the course of this project, specialized GRA and VLT aircraft were sized for their respective missions, using baseline conventional (i.e., lacking advanced enabling technologies) aircraft models from previous work for the Air Force's Wright Laboratory and NASA-Langley. DMLA baseline aircraft were then also developed, by first sizing the aircraft for the more critical of the two missions and then analyzing the aircraft's performance over the other mission. The resulting aircraft performance values were then compared to assess technical feasibility. Finally, the life-cycle costs of each aircraft (GRA, VLT, and DMLA) were analyzed to quantify economic feasibility. These steps were applied to both a two-engine aircraft set, and a four-engine aircraft set.

Critical Analysis of the Quality, Readability, and Technical Aspects of Online Information Provided for Neck-Lifts.

PubMed

Rayess, Hani; Zuliani, Giancarlo F; Gupta, Amar; Svider, Peter F; Folbe, Adam J; Eloy, Jean Anderson; Carron, Michael A

2017-03-01

The number of patients using the internet to obtain health information is growing. This material is unregulated and heterogeneous and can influence patient decisions. To compare the quality, readability, and technical aspects of online information about neck-lifts provided by private practice websites vs academic medical centers and reference sources. In this cross-sectional analysis conducted between November 2015 and January 2016, a Google search of the term neck-lift was performed, and the first 45 websites were evaluated. The websites were categorized as private practice vs other. Private websites (PWs) included sites created by private practice physicians. Other websites (OWs) were created by academic medical centers or reference sources. Quality, readability, and technical aspects of online websites related to neck-lifts. Quality was assessed using the DISCERN criteria and the Health on the Net principles (HONcode). Readability was assessed using 7 validated and widely used criteria. Consensus US reading grade level readability was provided by a website (readabilityformulas.com). Twelve technical aspects were evaluated based on criteria specified by medical website creators. Forty-five websites (8 OWs [18%] and 37 PWs [82%]) were analyzed. There was a significant difference in quality between OWs and PWs based on the DISCERN criteria and HONcode principles. The DISCERN overall mean (SD) scores were 2.3 (0.5) for OWs and 1.3 (0.3) for PWs (P < .001). Of a total possible score of 14 using the HONcode analysis, the mean (SD) was 8.6 (1.8) (range, 5-11) for OW, and the mean (SD) was 5.8 (1.7) (range, 2-9) for PW. The mean (SD) readability consensus reading grade level scores were 11.7 (1.9) for OWs and 10.6 (1.9) for PWs. Of a total possible score of 12, the mean (SD) technical scores were 6.3 (1.8) (range, 4-9) for OWs and 6.4 (1.5) (range, 3-9) for PWs. Compared with PWs, OWs had a significantly higher quality score based on both the DISCERN criteria and HONcode principles. The mean readability for OWs and PWs was grade 11 and grade 10, respectively, significantly higher than the grade 7 level recommended by the National Institutes of Health. Assessment of technical criteria demonstrated room for improvement in providing links to social media and blogs and reducing advertisements. Improving the quality and readability of online information may result in increased patient understanding, more active patient involvement, and ultimately better outcomes. Enhancing the technical aspects of websites may increase website traffic and patient volume. NA.

Anaerobic Digestion

EPA Pesticide Factsheets

Inform visitors about the science of AD, the environmental and economic benefits that can be realized through AD projects, and direct visitors to appropriate regulatory information, feasibility tools and technical resources from related EPA programs.

Highway Project Delivery Requirements

DOT National Transportation Integrated Search

1998-07-01

The purpose of the Commercial Vehicle Information Systems and Networks Model Deployment Initiative (CVISN MDI) is to demonstrate the technical and institutional feasibility, costs, and benefits of the primary Intelligent Transportation Systems (ITS) ...

Brain-Mind Operational Architectonics Imaging: Technical and Methodological Aspects

PubMed Central

Fingelkurts, Andrew A; Fingelkurts, Alexander A

2008-01-01

This review paper deals with methodological and technical foundations of the Operational Architectonics framework of brain and mind functioning. This theory provides a framework for mapping and understanding important aspects of the brain mechanisms that constitute perception, cognition, and eventually consciousness. The methods utilized within Operational Architectonics framework allow analyzing with an incredible detail the operational behavior of local neuronal assemblies and their joint activity in the form of unified and metastable operational modules, which constitute the whole hierarchy of brain operations, operations of cognition and phenomenal consciousness. PMID:19526071

Evaluating the feasibility of underground coal gasification in Thailand

DOE Office of Scientific and Technical Information (OSTI.GOV)

Young, B.C.; Harju, J.A.; Schmit, C.R.

Underground coal gasification (UCG) is a clean coal technology that converts in situ coal into a low- to medium-grade product gas without the added expense of mining and reclamation. Potential candidates for UCG are those coal resources that are not economically recoverable or that are otherwise unacceptable for conventional coal utilization processes. The Energy and Environmental Research Center (EERC), through the sponsorship of the US Trade and Development Agency and in collaboration with the Electricity Generating Authority of Thailand (EGAT), is undertaking a feasibility study for the application of UCG in the Krabi coal mining area, 620 miles south ofmore » Bangkok in Thailand. The EERC`s objective for this project is to determine the technical, environmental, and economic feasibility of demonstrating and commercializing UCG at a selected site in the Krabi coal mining area. This paper addresses the preliminary developments and ongoing strategy for evaluating the selected UCG site. The technical, environmental, and economic factors for successful UCG operation are discussed, as well as the strategic issues pertaining to future energy expansion in southern Thailand.« less

District heating and cooling feasibility study, Dunkirk, New York

DOE Office of Scientific and Technical Information (OSTI.GOV)

Not Available

The objective of this project is to perform a preliminary investigation of the technical and economic feasibility of implementing a district heating and cooling (DHC) system in the City of Dunkirk, New York. The study was conducted by first defining a heating and cooling (HC) load service area. Then, questionnaires were sent to prospective DHC customers. After reviewing the owners responses, large consumers of energy were interviewed for more detail of their HC systems, including site visits, to determine possibilities of retrofitting their systems to district heating and cooling. Peak HC loads for the buildings were estimated by Burns andmore » Roe's in-house computer programs. Based on the peak loads, certain customers were determined for suitability as anchor customers. Various options using cogeneration were investigated for possible HC sources. Equipment for HC sources and HC loads were sized and their associated costs estimated. Finally, economic analyses were performed. The conclusion is that it is technically and economically feasible to implement a district heating and cooling system in the City of Dunkirk. 14 figs., 15 tabs.« less

Feasibility of robot-assisted modified radical neck dissection by post-auricular facelift approach.

PubMed

Tae, K; Ji, Y B; Song, C M; Sung, E S; Chung, J H; Lee, S H; Park, H J

2016-11-01

The aim of this study was to evaluate the technical feasibility and safety of robot-assisted modified radical neck dissection (MRND) for head and neck cancer patients with a clinically node-positive neck. The cases of 10 head and neck cancer patients who underwent unilateral therapeutic robot-assisted MRND by post-auricular facelift approach were analyzed. The robot-assisted MRND was completed successfully in all patients without any conversion to conventional neck dissection. The mean number of lymph nodes removed was 36.7±8.6. The mean duration of surgery for robot-assisted MRND was 274±65min (range 175-395min). Transient marginal nerve palsy occurred in two patients and partial necrosis of the skin flap occurred in one patient. In terms of cosmetic satisfaction, 70% of patients were very satisfied or satisfied with postoperative cosmesis. In conclusion, robot-assisted MRND by post-auricular facelift approach is technically feasible and safe in selected patients with head and neck cancer, and yields excellent postoperative cosmesis. Copyright © 2016 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.

Heat pump assisted geothermal heating system for Felix Spa, Romania

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rosca, Marcel; Maghiar, Teodor

1996-01-24

The paper presents a pre-feasibility type study of a proposed heat pump assisted geothermal heating system for an average hotel in Felix Spa, Romania. After a brief presentation of the geothermal reservoir, the paper gives the methodology and the results of the technical and economical calculations. The technical and economical viability of the proposed system is discussed in detail in the final part of the paper.

Heat pump assisted geothermal heating system for Felix Spa, Romania

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rosca, M.; Maghiar, T.

1996-12-31

The paper presents a pre-feasibility type study of a proposed heat pump assisted geothermal heating system for an average hotel in Felix Spa, Romania. After a brief presentation of the geothermal reservoir, the paper gives the methodology and the results of the technical and economical calculations. The technical and economical viability of the proposed system is discussed in detail in the final part of the paper.

Technical Support and Documentation Management for 25 Ton All Terrain Crane (ATEC).

DTIC Science & Technology

1991-03-11

Rationale Report * Market Investigation and Supplement " Technical Feasibility Test Having considered material contained in the above documents and...Operational issues will be evaluated by OTEC as observers to the qualification testing . A logistics demonstration will be conducted in parallel with PPQT...Organizational OSHA Occupational Safety and Health Administration D-1 APPENDIX D - LIST OF ACRONYMNS (Continued) OTEC Operational Test and Evaluation Command OTP

Mechanical Recanalization of Subacute Vessel Occlusion in Peripheral Arterial Disease with a Directional Atherectomy Catheter

DOE Office of Scientific and Technical Information (OSTI.GOV)

Massmann, Alexander, E-mail: Alexander.Massmann@uks.eu; Katoh, Marcus; Shayesteh-Kheslat, Roushanak

2012-10-15

Purpose: To retrospectively examine the technical feasibility and safety of directional atherectomy for treatment of subacute infrainguinal arterial vessel occlusions. Methods: Five patients (one woman, four men, age range 51-81 years) with peripheral arterial disease who experienced sudden worsening of their peripheral arterial disease-related symptoms during the last 2-6 weeks underwent digital subtraction angiography, which revealed vessel occlusion in native popliteal artery (n = 4) and in-stent occlusion of the superficial femoral artery (n = 1). Subsequently, all patients were treated by atherectomy with the SilverHawk (ev3 Endovascular, USA) device. Results: The mean diameter of treated vessels was 5.1 {+-}more » 1.0 mm. The length of the occlusion ranged 2-14 cm. The primary technical success rate was 100%. One patient experienced a reocclusion during hospitalization due to heparin-induced thrombocytopenia. There were no further periprocedural complications, in particular no peripheral embolizations, until hospital discharge or during the follow-up period of 1 year. Conclusion: The recanalization of infrainguinal arterial vessel occlusions by atherectomy with the SilverHawk device is technically feasible and safe. In our limited retrospective study, it was associated with a high technical success rate and a low procedure-related complication rate.« less

7 CFR 1735.10 - General.

Code of Federal Regulations, 2011 CFR

2011-01-01

... cost-of-money loans, or RTB loans for any wireline local exchange service or similar fixed-station... plan is not technically or economically feasible. (c) A borrower receiving a loan to provide mobile...

7 CFR 1735.10 - General.

Code of Federal Regulations, 2010 CFR

2010-01-01

... cost-of-money loans, or RTB loans for any wireline local exchange service or similar fixed-station... plan is not technically or economically feasible. (c) A borrower receiving a loan to provide mobile...

Acceptability and Feasibility of Real-Time Antiretroviral Therapy Adherence Interventions in Rural Uganda: Mixed-Method Pilot Randomized Controlled Trial

PubMed Central

Atukunda, Esther C; Tumuhimbise, Wilson; Pisarski, Emily E; Tam, Melanie; Wyatt, Monique A; Ware, Norma C; Haberer, Jessica E

2018-01-01

Background Wireless electronic adherence monitors can detect antiretroviral therapy (ART) adherence lapses and trigger interventions in real time, thus potentially avoiding unnecessary HIV viremia. Evidence about the acceptability and feasibility of these monitors and associated interventions, however, is limited. Objective The aim of this study was to assess the acceptability and feasibility of real-time adherence monitoring linked to text messaging (short message service, SMS) reminders and notifications to support adherence among individuals living with HIV who are taking ART in rural southwestern Uganda. Methods Individuals living with HIV who were initiating ART were enrolled in a pilot randomized controlled trial and followed up for 9 months. Participants received a real-time adherence monitor and were randomized to one of the following study arms: (1) scheduled SMS, (2) SMS triggered by missed or delayed doses, or (3) no SMS. SMS notifications were also sent to 45 patient-identified social supporters for sustained adherence lapses in the scheduled SMS and triggered SMS arms. Study participants and social supporters participated in qualitative semistructured in-depth interviews on acceptability and feasibility of this technology. An inductive, content analytic approach, framed by the unified theory of acceptance and use of technology model, was used to analyze qualitative data. Quantitative feasibility data, including device functionality and SMS tracking data, were recorded based upon device metrics collected electronically and summarized descriptively. Results A total of 63 participants participated in the study. Participants reported that real-time monitoring intervention linked to SMS reminders and notifications are generally acceptable; the predominant feedback was perceived utility—the intervention was beneficial in motivating and reminding patients to take medication, as well as enabling provision of social support. The intervention was found to be technically feasible, as data were obtained from most participants as expected most of the time. Potential challenges included the impact of the technology on confidentiality, shared phone ownership, usability skills, and availability of electricity. Conclusions Real-time adherence monitoring integrated with SMS reminders and social support notifications is a generally acceptable (based primarily on perceived utility) and feasible intervention in a resource-limited country. Future efforts should focus on optimized device design, user training to overcome the challenges we encountered, cost effectiveness studies, as well as studying the monitoring aspect of the device without accompanying interventions. Trial Registration ClinicalTrials.gov NCT01957865; https://clinicaltrials.gov/ct2/show/NCT01957865 (Archived by WebCite at http://www.webcitation.org/6zFiDlXDa) PMID:29773527

Combustion: an oil spill mitigation tool

DOE Office of Scientific and Technical Information (OSTI.GOV)

None

1979-11-01

The technical feasibility of using combustion as an oil spill mitigation tool was studied. Part I of the two-part report is a practical guide oriented toward the needs of potential users, while Part II is the research or resource document from which the practical guidance was drawn. The study included theoretical evaluations of combustion of petroleum pool fires under the effects of weathering and an oil classification system related to combustion potential. The theoretical analysis of combustion is balanced by practical experience of oil burning and case history information. Decision elements are provided which can be used as a guidemore » for technical evaluations of a particular oil spill situation. The rationale for assessing technical feasibility is given in the context of other alternatives available for response to an oil spill. A series of research and technology development concepts are included for future research. The ethics of using oil burning are discussed as issues, concerns, and tradeoffs. A detailed annotated bibliography is appended along with a capsule review of a decade of oil burning studies and other support information.« less

Production of Magnesium and Aluminum-Magnesium Alloys from Recycled Secondary Aluminum Scrap Melts

NASA Astrophysics Data System (ADS)

Gesing, Adam J.; Das, Subodh K.; Loutfy, Raouf O.

2016-02-01

An experimental proof of concept was demonstrated for a patent-pending and trademark-pending RE12™ process for extracting a desired amount of Mg from recycled scrap secondary Al melts. Mg was extracted by electrorefining, producing a Mg product suitable as a Mg alloying hardener additive to primary-grade Al alloys. This efficient electrorefining process operates at high current efficiency, high Mg recovery and low energy consumption. The Mg electrorefining product can meet all the impurity specifications with subsequent melt treatment for removing alkali contaminants. All technical results obtained in the RE12™ project indicate that the electrorefining process for extraction of Mg from Al melt is technically feasible. A techno-economic analysis indicates high potential profitability for applications in Al foundry alloys as well as beverage—can and automotive—sheet alloys. The combination of technical feasibility and potential market profitability completes a successful proof of concept. This economical, environmentally-friendly and chlorine-free RE12™ process could be disruptive and transformational for the Mg production industry by enabling the recycling of 30,000 tonnes of primary-quality Mg annually.

Technical aspects of CT imaging of the spine.

PubMed

Tins, Bernhard

2010-11-01

This review article discusses technical aspects of computed tomography (CT) imaging of the spine. Patient positioning, and its influence on image quality and movement artefact, is discussed. Particular emphasis is placed on the choice of scan parameters and their relation to image quality and radiation burden to the patient. Strategies to reduce radiation burden and artefact from metal implants are outlined. Data acquisition, processing, image display and steps to reduce artefact are reviewed. CT imaging of the spine is put into context with other imaging modalities for specific clinical indications or problems. This review aims to review underlying principles for image acquisition and to provide a rough guide for clinical problems without being prescriptive. Individual practice will always vary and reflect differences in local experience, technical provisions and clinical requirements.

Third International Mathematics and Science Study 1999 Video Study Technical Report: Volume 2--Science. Technical Report. NCES 2011-049

ERIC Educational Resources Information Center

Garnier, Helen E.; Lemmens, Meike; Druker, Stephen L.; Roth, Kathleen J.

2011-01-01

This second volume of the Third International Mathematics and Science Study (TIMSS) 1999 Video Study Technical Report focuses on every aspect of the planning, implementation, processing, analysis, and reporting of the science components of the TIMSS 1999 Video Study. The report is intended to serve as a record of the actions and documentation of…

Electrocardiogram Scanner-System Requirements

DOT National Transportation Integrated Search

1973-03-01

An experimental and analytical study has been conducted to establish the feasibility for scanning and digitizing electrocardiogram records. The technical requirements and relative costs for two systems are discussed herein. One is designed to automat...

EVALUATION GUIDELINES FOR ECOLOGICAL INDICATORS

EPA Science Inventory

This document presents fifteen technical guidelines to evaluate the suitability of an ecological indicator for a particular monitoring program. The guidelines are organized within four evaluation phrases: conceptual relevance, feasibility of implementation, response variability...

7 CFR 4280.116 - Application and documentation.

Code of Federal Regulations, 2012 CFR

2012-01-01

... project goals that includes the following: (i) Title. Provide a descriptive title of the project... sufficient detail to allow the Agency to score the project and evaluate its technical feasibility. (B) Either...

7 CFR 4280.116 - Application and documentation.

Code of Federal Regulations, 2014 CFR

2014-01-01

... project goals that includes the following: (i) Title. Provide a descriptive title of the project... sufficient detail to allow the Agency to score the project and evaluate its technical feasibility. (B) Either...

7 CFR 4280.116 - Application and documentation.

Code of Federal Regulations, 2013 CFR

2013-01-01

... project goals that includes the following: (i) Title. Provide a descriptive title of the project... sufficient detail to allow the Agency to score the project and evaluate its technical feasibility. (B) Either...

7 CFR 4280.111 - Application and documentation.

Code of Federal Regulations, 2010 CFR

2010-01-01

...: (i) Title. Provide a descriptive title of the project (identified on SF 424). (ii) Applicant... sufficient detail to allow the Agency to score the project and evaluate its technical feasibility. (B) Either...

7 CFR 4280.111 - Application and documentation.

Code of Federal Regulations, 2011 CFR

2011-01-01

...: (i) Title. Provide a descriptive title of the project (identified on SF 424). (ii) Applicant... sufficient detail to allow the Agency to score the project and evaluate its technical feasibility. (B) Either...

Seismic microzonation in Latin America and the Caribbean: social, cultural, economic and political aspects

NASA Astrophysics Data System (ADS)

Murria, J.

2009-04-01

The lack of success, not to say failure, of seismic microzonation projects in the Latin America and Caribbean nations-and for that matter elsewhere in the world-should not be attributed to the lack of technical and scientific expertise of our engineers and scientists as there exists in our continent sufficient knowledge and information about the techniques and procedures that have been successfully used elsewhere in the world in the implementation of seismic microzonation projects. The main constrains to the implementation of seismic microzonation projects in Latin America and the Caribbean are of an economic, social, political, and cultural aspects rather than the purely scientific and engineering aspects. Another very important factor contributing to this lack of success has been the apparent failure of the scientific and technical community to convince decision makers (both official and private) that the sound implementation of seismic microzonation projects are a valid instrument to mitigate the negative effects that earthquakes have on the population, on the physical infrastructure and on the environment. An attempt will be made in this paper to analyze these "non technical" aspects and try to arrive at some conclusions as well as to some possible lines of action for the successful implementation of seismic microzonation projects in the seismic risk prone Latin American and Caribbean nations.

NASA/DOD Aerospace Knowledge Diffusion Research Project. Paper 25: The impact of language and culture on technical communication in Japan

NASA Technical Reports Server (NTRS)

Kohl, John R.; Barclay, Rebecca O.; Pinelli, Thomas E.; Keene, Michael L.; Kennedy, John M.

1993-01-01

One of the most significant developments in the field of technical communication during the 1980's and 1990's has been a growing interest in international technical communication, including technical communication in Japan. This article provides insights into aspects of the Japanese language and culture that affect Japanese technical communication practices. These insights are then used to interpret and report the results of a survey of Japanese aerospace engineers and scientists concerning the kinds of communication products they produce, the kinds they use, and the specific recommendation they would offer to designers of academic programs in technical communication.

NASA/DoD Aerospace Knowledge Diffusion Research Project. XXV - The impact of language and culture on technical communication in Japan

NASA Technical Reports Server (NTRS)

Kohl, John R.; Barclay, Rebecca O.; Pinelli, Thomas E.; Keene, Michael L.; Kennedy, John M.

1993-01-01

One of the most significant developments in the field of technical communication during the 1980s and 1990s has been a growing interest in international technical communication, including technical communication in Japan. This article provides insights into aspects of the Japanese language and culture that affect Japanese technical communication practices. The authors then use these insights to interpret and report the results of a survey of Japanese aerospace engineers and scientists concerning the kinds of communication products they produce, the kinds they use, and the specific recommendations they would offer to designers of academic programs in technical communication.

A feasibility study of orbiter flight control experiments

NASA Technical Reports Server (NTRS)

Geissler, W. H.

1978-01-01

The results of a feasibility study of orbiter flight control experiments performed are summarized. Feasibility studies were performed on a group of 14 experiments selected from a candidate list of 35 submitted to the study contractor by the flight control community. Concepts and requirements were developed for the 14 selected experiments and they were ranked on a basis of technical value, feasibility, and cost. It was concluded that all the selected experiments can be considered as potential candidates for the Orbiter Experiment program, which is being formulated for the Orbiter Flight Tests and subsequent operational flights, regardless of the relative ranking established during the study. None of the selected experiments has significant safety implications and the cost of most was estimated to be less than $200K.

Cultured meat: every village its own factory?

PubMed

van der Weele, Cor; Tramper, Johannes

2014-06-01

Rising global demand for meat will result in increased environmental pollution, energy consumption, and animal suffering. Cultured meat, produced in an animal-cell cultivation process, is a technically feasible alternative lacking these disadvantages, provided that an animal-component-free growth medium can be developed. Small-scale production looks particularly promising, not only technologically but also for societal acceptance. Economic feasibility, however, emerges as the real obstacle. Copyright © 2014 Elsevier Ltd. All rights reserved.

Usability and feasibility of a tablet-based Decision-Support and Integrated Record-keeping (DESIRE) tool in the nurse management of hypertension in rural western Kenya.

PubMed

Vedanthan, Rajesh; Blank, Evan; Tuikong, Nelly; Kamano, Jemima; Misoi, Lawrence; Tulienge, Deborah; Hutchinson, Claire; Ascheim, Deborah D; Kimaiyo, Sylvester; Fuster, Valentin; Were, Martin C

2015-03-01

Mobile health (mHealth) applications have recently proliferated, especially in low- and middle-income countries, complementing task-redistribution strategies with clinical decision support. Relatively few studies address usability and feasibility issues that may impact success or failure of implementation, and few have been conducted for non-communicable diseases such as hypertension. To conduct iterative usability and feasibility testing of a tablet-based Decision Support and Integrated Record-keeping (DESIRE) tool, a technology intended to assist rural clinicians taking care of hypertension patients at the community level in a resource-limited setting in western Kenya. Usability testing consisted of "think aloud" exercises and "mock patient encounters" with five nurses, as well as one focus group discussion. Feasibility testing consisted of semi-structured interviews of five nurses and two members of the implementation team, and one focus group discussion with nurses. Content analysis was performed using both deductive codes and significant inductive codes. Critical incidents were identified and ranked according to severity. A cause-of-error analysis was used to develop corresponding design change suggestions. Fifty-seven critical incidents were identified in usability testing, 21 of which were unique. The cause-of-error analysis yielded 23 design change suggestions. Feasibility themes included barriers to implementation along both human and technical axes, facilitators to implementation, provider issues, patient issues and feature requests. This participatory, iterative human-centered design process revealed previously unaddressed usability and feasibility issues affecting the implementation of the DESIRE tool in western Kenya. In addition to well-known technical issues, we highlight the importance of human factors that can impact implementation of mHealth interventions. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

Usability and Feasibility of a Tablet-Based Decision-Support and Integrated Record-Keeping (DESIRE) Tool in the Nurse Management of Hypertension in Rural Western Kenya

PubMed Central

Vedanthan, Rajesh; Blank, Evan; Tuikong, Nelly; Kamano, Jemima; Misoi, Lawrence; Tulienge, Deborah; Hutchinson, Claire; Ascheim, Deborah D.; Kimaiyo, Sylvester; Fuster, Valentin; Were, Martin C.

2015-01-01

Background Mobile health (mHealth) applications have recently proliferated, especially in low- and middle-income countries, complementing task-redistribution strategies with clinical decision support. Relatively few studies address usability and feasibility issues that may impact success or failure of implementation, and few have been conducted for non-communicable diseases such as hypertension. Objective To conduct iterative usability and feasibility testing of a tablet-based Decision Support and Integrated Record-keeping (DESIRE) tool, a technology intended to assist rural clinicians taking care of hypertension patients at the community level in a resource-limited setting in western Kenya. Methods Usability testing consisted of “think aloud” exercises and “mock patient encounters” with five nurses, as well as one focus group discussion. Feasibility testing consisted of semi-structured interviews of five nurses and two members of the implementation team, and one focus group discussion with nurses. Content analysis was performed using both deductive codes and significant inductive codes. Critical incidents were identified and ranked according to severity. A cause-of-error analysis was used to develop corresponding design change suggestions. Results Fifty-seven critical incidents were identified in usability testing, 21 of which were unique. The cause-of-error analysis yielded 23 design change suggestions. Feasibility themes included barriers to implementation along both human and technical axes, facilitators to implementation, provider issues, patient issues and feature requests. Conclusions This participatory, iterative human-centered design process revealed previously unaddressed usability and feasibility issues affecting the implementation of the DESIRE tool in western Kenya. In addition to well-known technical issues, we highlight the importance of human factors that can impact implementation of mHealth interventions. PMID:25612791

7 CFR 4284.913 - Evaluation criteria and weights.

Code of Federal Regulations, 2011 CFR

2011-01-01

... established in the applicable RFP. (b) Working Capital Grants—(1) Business viability. Proposals will be evaluated on the basis of the technical and economic feasibility and sustainability of the venture and the...

7 CFR 4284.913 - Evaluation criteria and weights.

Code of Federal Regulations, 2010 CFR

2010-01-01

... established in the applicable RFP. (b) Working Capital Grants—(1) Business viability. Proposals will be evaluated on the basis of the technical and economic feasibility and sustainability of the venture and the...

Solar Energy Economics Revisited: The Promise and Challenge of Orbiting Reflectors for World Energy Supply

NASA Technical Reports Server (NTRS)

Billman, Kenneth W.; Gilbreath, William P.; Bowen, Stuart W.

1978-01-01

A system of orbiting, large-area, low mass density reflector satellites which provide nearly continuous solar energy to a world-distributed set of conversion sites is examined under the criteria for any potential new energy system: technical feasibility, significant and renewable energy impact, economic feasibility and social/political acceptability. Although many technical issues need further study, reasonable advances in space technology appear sufficient to implement the system. The enhanced insolation is shown to greatly improve the economic competitiveness of solar-electric generation to circa 1995 fossil/nuclear alternatives. The system is shown to have the potential for supplying a significant fraction of future domestic and world energy needs. Finally, the environmental and social issues, including a means for financing such a large shift to a world solar energy dependence, is addressed.

Process research on non-CZ silicon material

NASA Technical Reports Server (NTRS)

1982-01-01

High risk, high payoff research areas associated with he process for producing photovoltaic modules using non-CZ sheet material are investigated. All investigations are being performed using dendritic web silicon, but all processes are directly applicable to other ribbon forms of sheet material. The technical feasibility of forming front and back junctions in non-CZ silicon using liquid dopant techniques was determined. Numerous commercially available liquid phosphorus and boron dopant solutions are investigated. Temperature-time profiles to achieve N(+) and P(+) sheet resistivities of 60 + or - 10 and 40 + or - s10 ohms per square centimeter respectively are established. A study of the optimal method of liquid dopant application is performed. The technical feasibility of forming a liquid applied diffusion mask to replace the more costly chemical vapor deposited SiO2 diffusion mask was also determined.

DOE Office of Scientific and Technical Information (OSTI.GOV)

R.Raman

The CT injector originally used for injecting CTs into 1T toroidal field discharges in the TdeV tokamak was shipped PPPL from the Affiliated Customs Brokers storage facility in Montreal during November 2002. All components were transported safely, without damage, and are currently in storage at PPPL, waiting for further funding in order to begin advanced fueling experiments on NSTX. The components are currently insured through the University of Washington. Several technical presentations were made to investigate the feasibility of the CT injector installation on NSTX. These technical presentations, attached to this document, were: (1) Motivation for Compact Toroida Injection inmore » NSTX; (2) Assessment of the Engineering Feasibility of Installing CTF-II on NSTX; (3) Assessment of the Cost for CT Installation on NSTX--A Peer Review; and (4) CT Fueling for NSTX FY 04-08 steady-state operation needs.« less

Real-Time 3D Fluoroscopy-Guided Large Core Needle Biopsy of Renal Masses: A Critical Early Evaluation According to the IDEAL Recommendations

DOE Office of Scientific and Technical Information (OSTI.GOV)

Kroeze, Stephanie G. C.; Huisman, Merel; Verkooijen, Helena M.

2012-06-15

Introduction: Three-dimensional (3D) real-time fluoroscopy cone beam CT is a promising new technique for image-guided biopsy of solid tumors. We evaluated the technical feasibility, diagnostic accuracy, and complications of this technique for guidance of large-core needle biopsy in patients with suspicious renal masses. Methods: Thirteen patients with 13 suspicious renal masses underwent large-core needle biopsy under 3D real-time fluoroscopy cone beam CT guidance. Imaging acquisition and subsequent 3D reconstruction was done by a mobile flat-panel detector (FD) C-arm system to plan the needle path. Large-core needle biopsies were taken by the interventional radiologist. Technical success, accuracy, and safety were evaluatedmore » according to the Innovation, Development, Exploration, Assessment, Long-term study (IDEAL) recommendations. Results: Median tumor size was 2.6 (range, 1.0-14.0) cm. In ten (77%) patients, the histological diagnosis corresponded to the imaging findings: five were malignancies, five benign lesions. Technical feasibility was 77% (10/13); in three patients biopsy results were inconclusive. The lesion size of these three patients was <2.5 cm. One patient developed a minor complication. Median follow-up was 16.0 (range, 6.4-19.8) months. Conclusions: 3D real-time fluoroscopy cone beam CT-guided biopsy of renal masses is feasible and safe. However, these first results suggest that diagnostic accuracy may be limited in patients with renal masses <2.5 cm.« less

Feasibility Study to Identify Potential Reductions in Energy Use in Tribal Buildings

DOE Office of Scientific and Technical Information (OSTI.GOV)

Stevens, Willie

Under this project, the Confederated Salish and Kootenai Tribes (CSKT) assessed the technical and economic feasibility of energy efficiency improvements to existing Tribally-owned buildings. The feasibility study followed a systematic approach in identifying, selecting, and ranking recommended measures, recognizing that the appropriateness of a measure would depend not only on technical issues but also on institutional and organizational issues, such as financing options and occupant requirements. The completed study provided the Tribes with the information needed to commit necessary resources to reduce the energy use and cost in approximately 40 Tribal buildings, including the changes that may be needed inmore » each facility’s operation and maintenance and personnel requirements. It also presented an economic analysis of energy-efficiency capital improvements and an annotated list of financing options and possible funding sources for implementation and an overall strategy for implementation. This project was located in various Tribal communities located throughout the Flathead Indian Reservation in Western Montana. Notice: The following is a compilation of Annual Program Review Presentations, Award Modifications, and Quarterly Progress Reports submitted to the Department of Energy’s (DOE) Office of Indian Energy Policy and Programs by the Confederated Salish and Kootenai Tribes under agreement DE-EE0005171. This report covers project activities from September 30, 2011 through December 31, 2014 and has been uploaded to OSTI by DOE as a substitute for the required Final Technical Report which was not received by DOE from the project recipient.« less

Development of an algorithm to plan and simulate a new interventional procedure.

PubMed

Fujita, Buntaro; Kütting, Maximilian; Scholtz, Smita; Utzenrath, Marc; Hakim-Meibodi, Kavous; Paluszkiewicz, Lech; Schmitz, Christoph; Börgermann, Jochen; Gummert, Jan; Steinseifer, Ulrich; Ensminger, Stephan

2015-07-01

The number of implanted biological valves for treatment of valvular heart disease is growing and a percentage of these patients will eventually undergo a transcatheter valve-in-valve (ViV) procedure. Some of these patients will represent challenging cases. The aim of this study was to develop a feasible algorithm to plan and in vitro simulate a new interventional procedure to improve patient outcome. In addition to standard diagnostic routine, our algorithm includes 3D printing of the annulus, hydrodynamic measurements and high-speed analysis of leaflet kinematics after simulation of the procedure in different prosthesis positions as well as X-ray imaging of the most suitable valve position to create a 'blueprint' for the patient procedure. This algorithm was developed for a patient with a degenerated Perceval aortic sutureless prosthesis requiring a ViV procedure. Different ViV procedures were assessed in the algorithm and based on these results the best option for the patient was chosen. The actual procedure went exactly as planned with help of this algorithm. Here we have developed a new technically feasible algorithm simulating important aspects of a novel interventional procedure prior to the actual procedure. This algorithm can be applied to virtually all patients requiring a novel interventional procedure to help identify risks and find optimal parameters for prosthesis selection and placement in order to maximize safety for the patient. © The Author 2015. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved.

Technical variables in high-throughput miRNA expression profiling: much work remains to be done.

PubMed

Nelson, Peter T; Wang, Wang-Xia; Wilfred, Bernard R; Tang, Guiliang

2008-11-01

MicroRNA (miRNA) gene expression profiling has provided important insights into plant and animal biology. However, there has not been ample published work about pitfalls associated with technical parameters in miRNA gene expression profiling. One source of pertinent information about technical variables in gene expression profiling is the separate and more well-established literature regarding mRNA expression profiling. However, many aspects of miRNA biochemistry are unique. For example, the cellular processing and compartmentation of miRNAs, the differential stability of specific miRNAs, and aspects of global miRNA expression regulation require specific consideration. Additional possible sources of systematic bias in miRNA expression studies include the differential impact of pre-analytical variables, substrate specificity of nucleic acid processing enzymes used in labeling and amplification, and issues regarding new miRNA discovery and annotation. We conclude that greater focus on technical parameters is required to bolster the validity, reliability, and cultural credibility of miRNA gene expression profiling studies.

Leo Szilard Lectureship Award: Science Matters - Technical Dimensions of Arms Control and Non-Proliferation Agreements

NASA Astrophysics Data System (ADS)

Timbie, James

2017-01-01

Agreements to reduce nuclear arms and prevent proliferation of nuclear weapons are technical as well as political documents. They must be both technically sound and politically acceptable. This presentation illustrates technical aspects of arms control and non-proliferation agreements, with examples from SALT I, INF, the HEU Agreement, START, and the Iran nuclear negotiations, drawing on 44 years of personal experience in the negotiation of these agreements. The lecture is designed to convey an appreciation of the role that individuals with technical training can play in diplomatic efforts to reduce nuclear forces and prevent nuclear proliferation.

Physical and Economic Feasibility of Nonstructural Flood Plain Management Measures,

DTIC Science & Technology

1978-03-01

5. U.S. Army Engineers, "Flood Proofing: Example of Raising a Private Residence", South Atlantic Division, Technical Services Report, March 1977. 6...Army Engineers, "Flood Proofing: Example of Raising a Private Residence", South Atlantic Division, Technical Services Report, March 1977. 25 . .. .. .i 0...10,000 (except below) Alaska, Hawaii, Guam, and 50,000 10,000 Virgin Islands Other Residential (except single-family) All states and jurisdictions

Urology technical and non-technical skills development: the emerging role of simulation.

PubMed

Rashid, Prem; Gianduzzo, Troy R J

2016-04-01

To review the emerging role of technical and non-technical simulation in urological education and training. A review was conducted to examine the current role of simulation in urology training. A PUBMED search of the terms 'urology training', 'urology simulation' and 'urology education' revealed 11,504 titles. Three hundred and fifty-seven abstracts were identified as English language, peer reviewed papers pertaining to the role of simulation in urology and related topics. Key papers were used to explore themes. Some cross-referenced papers were also included. There is an ongoing need to ensure that training time is efficiently utilised while ensuring that optimal technical and non-technical skills are achieved. Changing working conditions and the need to minimise patient harm by inadvertent errors must be taken into account. Simulation models for specific technical aspects have been the mainstay of graduated step-wise low and high fidelity training. Whole scenario environments as well as non-technical aspects can be slowly incorporated into the curriculum. Doing so should also help define what have been challenging competencies to teach and evaluate. Dedicated time, resources and trainer up-skilling are important. Concurrent studies are needed to help evaluate the effectiveness of introducing step-wise simulation for technical and non-technical competencies. Simulation based learning remains the best avenue of progressing surgical education. Technical and non-technical simulation could be used in the selection process. There are good economic, logistic and safety reasons to pursue the process of ongoing development of simulation co-curricula. While the role of simulation is assured, its progress will depend on a structured program that takes advantage of what can be delivered via this medium. Overall, simulation can be developed further for urological training programs to encompass technical and non-technical skill development at all stages, including recertification. © 2015 The Authors BJU International © 2015 BJU International Published by John Wiley & Sons Ltd.

Technical aspects of pediatric epilepsy surgery: Report of a multicenter, multinational web-based survey by the ILAE Task Force on Pediatric Epilepsy Surgery.

PubMed

Cukiert, Arthur; Rydenhag, Bertil; Harkness, William; Cross, J Helen; Gaillard, William D

2016-02-01

Surgical techniques may vary extensively between centers. We report on a web-based survey aimed at evaluating the current technical approaches in different centers around the world performing epilepsy surgery in children. The intention of the survey was to establish technical standards. A request was made to 88 centers to complete a web-based survey comprising 51 questions. There were 14 questions related to general issues, 13 questions investigating the different technical aspects for children undergoing epilepsy surgery, and 24 questions investigating surgical strategies in pediatric epilepsy surgery. Fifty-two centers covering a wide geographic representation completed the questionnaire. The median number of resective procedures per center per year was 47. Some important technical practices appeared (>80% of the responses) such as the use of prophylactic antibiotics (98%), the use of high-speed drills for bone opening (88%), nonresorbable material for bone flap closure (85%), head fixation (90%), use of the surgical microscope (100%), and of free bone flaps. Other questions, such as the use of drains, electrocorticography (ECoG) and preoperative withdrawal of valproate, led to mixed, inconclusive results. Complications were noted in 3.8% of the patients submitted to cortical resection, 9.9% hemispheric surgery, 5% callosotomy, 1.8% depth electrode implantation, 5.9% subdural grids implantation, 11.9% hypothalamic hamartoma resection, 0.9% vagus nerve stimulation (VNS), and 0.5% deep brain stimulation. There were no major differences across regions or countries in any of the subitems above. The present data offer the first overview of the technical aspects of pediatric epilepsy surgery worldwide. Surprisingly, there seem to be more similarities than differences. That aside many of the evaluated issues should be examined by adequately designed multicenter randomized controlled trials (RCTs). Further knowledge on these technical issues might lead to increased standardization and lower costs in the future, as well as definitive practice guidelines. Wiley Periodicals, Inc. © 2016 International League Against Epilepsy.

Landfill mining in Austria: foundations for an integrated ecological and economic assessment.

PubMed

Hermann, Robert; Baumgartner, Rupert J; Sarc, Renato; Ragossnig, Arne; Wolfsberger, Tanja; Eisenberger, Martin; Budischowsky, Andreas; Pomberger, Roland

2014-09-01

For the first time, basic technical and economic studies for landfill mining are being carried out in Austria on the basis of a pilot project. An important goal of these studies is the collection of elementary data as the basis for an integrated ecological and economic assessment of landfill mining projects with regard to their feasibility. For this purpose, economic, ecological, technical, organizational, as well as political and legal influencing factors are identified and extensively studied in the article. An important aspect is the mutual influence of the factors on each other, as this can significantly affect the development of an integrated assessment system. In addition to the influencing factors, the definition of the spatial and temporal system boundaries is crucial for further investigations. Among others, the quality and quantity of recovered waste materials, temporal fluctuations or developments in prices of secondary raw material and fuels attainable in the markets, and time and duration of dumping, play a crucial role. Based on the investigations, the spatial system boundary is defined in as much as all the necessary process steps, from landfill mining, preparing and sorting to providing a marketable material/product by the landfill operator, are taken into account. No general accepted definition can be made for the temporal system boundary because the different time-related influencing factors necessitate an individual project-specific determination and adaptation to the facts of the on-site landfill mining project. © The Author(s) 2014.

Towards the systematic development of medical networking technology.

PubMed

Faust, Oliver; Shetty, Ravindra; Sree, S Vinitha; Acharya, Sripathi; Acharya U, Rajendra; Ng, E Y K; Poo, Chua Kok; Suri, Jasjit

2011-12-01

Currently, there is a disparity in the availability of doctors between urban and rural areas of developing countries. Most experienced doctors and specialists, as well as advanced diagnostic technologies, are available in urban areas. People living in rural areas have less or sometimes even no access to affordable healthcare facilities. Increasing the number of doctors and charitable medical hospitals or deploying advanced medical technologies in these areas might not be economically feasible, especially in developing countries. We need to mobilize science and technology to master this complex, large scale problem in an objective, logical, and professional way. This can only be achieved with a collaborative effort where a team of experts works on both technical and non-technical aspects of this health care divide. In this paper we use a systems engineering framework to discuss hospital networks which might be solution for the problem. We argue that with the advancement in communication and networking technologies, economically middle class people and even some rural poor have access to internet and mobile communication systems. Thus, Hospital Digital Networking Technologies (HDNT), such as telemedicine, can be developed to utilize internet, mobile and satellite communication systems to connect primitive rural healthcare centers to well advanced modern urban setups and thereby provide better consultation and diagnostic care to the needy people. This paper describes requirements and limitations of the HDNTs. It also presents the features of telemedicine, the implementation issues and the application of wireless technologies in the field of medical networking.

Digital photo documentation of forensically relevant injuries as part of the clinical first response protocol.

PubMed

Verhoff, Marcel A; Kettner, Mattias; Lászik, András; Ramsthaler, Frank

2012-09-01

A problem encountered by medical examiners is that they have to assess injuries that have already been medically treated. Thus, they have to base their reports on clinical forensic examinations performed hours or days after an injury was sustained, or even base their assessment solely on information gleaned from medical files. In both scenarios, the forensic examiner has to rely heavily on the first responder's documentation of the original injury pattern. Medical priority will be to immediately treat a patient's injuries, and the first responder may, in addition, initially be unaware of a possibly criminal origin of an injury. As a result, the documentation of injuries is frequently of limited value for forensic purposes. This situation could be improved if photographic records were briefly made of injuries before they were treated. German-language medicolegal, criminal, and photography journals and books were selectively searched with the help of PubMed and other databases. In addition, the authors' experiences in creating and evaluating photographic records for clinical forensic use were assessed. This paper is an aid to creating photographic records of sufficient quality for forensic purposes. The options provided by digital photography in particular make this endeavor feasible even in a clinical setting. In addition, our paper illuminates some technical aspects of creating and archiving photographic records for forensic use, and addresses possible error sources. With the requisite technical background knowledge, injuries can be photographically recorded to forensic standards during patient care.

Development and implementation of a pharmacist-run comprehensive medication review program in Wisconsin.

PubMed

Schoenrock, Danielle L; Hartkopf, Katherine; Boeckelman, Carrie

2016-12-01

The development and implementation of a centralized, pharmacist-run population health program were pursued within a health system to increase patient exposure to comprehensive medication reviews (CMRs) and improve visit processes. Program implementation included choosing appropriate pilot pharmacy locations, developing a feasible staffing model, standardizing the workflow, and creating a patient referral process. The impact on patient exposure, specific interventions, and the sustainability of the program were evaluated over a seven-month period. A total of 96 CMRs were scheduled during the data collection period. Attendance at scheduled CMRs was 54% (52 visits); there were 25 cancellations (26%) and 19 no-shows (20%). Since program implementation, there has been more than a twofold increase (2.08) in the number of CMRs completed within the health system. On average, all aspects of each patient visit took 1.78 hours to complete. Pharmacists spent 28% of scheduled time on CMR tasks and 72% of time on telephone calls and technical tasks to maintain appointments. A pharmacist-run CMR program helped to elevate the role of the community pharmacist in a health system and to improve patient exposure to CMRs. Sustaining a centralized CMR program requires support from other members of the health-system team so that pharmacists can spend more time providing patient care and less time on the technical tasks involved. Copyright © 2016 by the American Society of Health-System Pharmacists, Inc. All rights reserved.

[Mobile CT: technical aspects of prehospital stroke imaging before intravenous thrombolysis].

PubMed

Gierhake, D; Weber, J E; Villringer, K; Ebinger, M; Audebert, H J; Fiebach, J B

2013-01-01

To reduce the time from symptom onset to treatment with tissue plasminogen activator (tPA) in ischemic stroke, an ambulance was equipped with a CT scanner. We analyzed process and image quality of CT scanning during the pilot study regarding image quality and safety issues. The pilot study of a stroke emergency mobile unit (STEMO) ran over a period of 12 weeks on 5 weekdays from 7a.m. to 6:30 p.m. A teleradiological service for the justifying indication and reporting was established. The radiographer was responsible for the performance of the CT scan on the ambulance. 64 cranial CT scans and 1 intracranial CT angiography were performed. We compared times from ambulance alarm to treatment decision (time of last brain scan) with a cohort of 50 consecutive tPA treatments before implementation of STEMO. 62 (95%) of the 65 scans performed had sufficient quality for reading. Technical quality was not optimal in 45 cases (69%) mainly caused by suboptimal positioning of patient or eye lens protection. Motion artefacts were observed in 8 exams (12%). No safety issues occurred for team or patients. 23 patients were treated with thrombolysis. Time from alarm to last CT scan was 18 minutes shorter than in the tPA cohort before STEMO implementation. A teleradiological support for primary stroke imaging by CT on-site is feasible, quality-wise of diagnostic value and has not raised safety issues. © Georg Thieme Verlag KG Stuttgart · New York.

The use of carbon dioxide angiography for renal sympathetic denervation: a technical report.

PubMed

Renton, Mary; Hameed, Mohammad A; Dasgupta, Indranil; Hoey, Edward T D; Freedman, Jonathan; Ganeshan, Arul

2016-12-01

Hypertension is the leading attributable cause of cardiovascular mortality worldwide. Patients with hypertension have multiple comorbidities including high rates of concomitant renal disease. Current pharmacological approaches are inadequate in the treatment of resistant hypertension. Renal sympathetic denervation (RDN) has been shown to effectively treat resistant hypertension. The traditional use of iodinated contrast in RDN is contraindicated in patients with significant renal insufficiency. In patients with renal impairment, carbon dioxide (CO 2 ) can be used as an alternative contrast material for RDN. This article describes the technical aspects of RDN using CO 2 angiography. Our centre is experienced in the innovative RDN procedure using CO 2 angiography. We describe the protocol for CO 2 angiography for RDN using a home-made CO 2 delivery system and the Symplicity ™ (Minneapolis MN 55432 USA) catheter (Medtronic) device. CO 2 angiography is an excellent alternative to iodinated contrast for RDN procedures. CO 2 angiography for RDN is a safe and effective alternative to iodinated contrast. RDN using CO 2 angiography is an easy and feasible procedure that can be used in patients with renal insufficiency or iodinated contrast allergies. Advances in knowledge: There is a paucity of descriptive reports for CO 2 angiography for RDN and we provide details of the optimal protocol for the procedure. In particular, we describe the use of a Symplicity Spyral ™ catheter (Medtronic), which has not been reported to date for use in this procedure.

Reply to comment by Añel on "Most computational hydrology is not reproducible, so is it really science?"

NASA Astrophysics Data System (ADS)

Hutton, Christopher; Wagener, Thorsten; Freer, Jim; Han, Dawei; Duffy, Chris; Arheimer, Berit

2017-03-01

In this article, we reply to a comment made on our previous commentary regarding reproducibility in computational hydrology. Software licensing and version control of code are important technical aspects of making code and workflows of scientific experiments open and reproducible. However, in our view, it is the cultural change that is the greatest challenge to overcome to achieve reproducible scientific research in computational hydrology. We believe that from changing the culture and attitude among hydrological scientists, details will evolve to cover more (technical) aspects over time.

What is needed to implement a computer-assisted health risk assessment tool? An exploratory concept mapping study.

PubMed

Ahmad, Farah; Norman, Cameron; O'Campo, Patricia

2012-12-19

Emerging eHealth tools could facilitate the delivery of comprehensive care in time-constrained clinical settings. One such tool is interactive computer-assisted health-risk assessments (HRA), which may improve provider-patient communication at the point of care, particularly for psychosocial health concerns, which remain under-detected in clinical encounters. The research team explored the perspectives of healthcare providers representing a variety of disciplines (physicians, nurses, social workers, allied staff) regarding the factors required for implementation of an interactive HRA on psychosocial health. The research team employed a semi-qualitative participatory method known as Concept Mapping, which involved three distinct phases. First, in face-to-face and online brainstorming sessions, participants responded to an open-ended central question: "What factors should be in place within your clinical setting to support an effective computer-assisted screening tool for psychosocial risks?" The brainstormed items were consolidated by the research team. Then, in face-to-face and online sorting sessions, participants grouped the items thematically as 'it made sense to them'. Participants also rated each item on a 5-point scale for its 'importance' and 'action feasibility' over the ensuing six month period. The sorted and rated data was analyzed using multidimensional scaling and hierarchical cluster analyses which produced visual maps. In the third and final phase, the face-to-face Interpretation sessions, the concept maps were discussed and illuminated by participants collectively. Overall, 54 providers participated (emergency care 48%; primary care 52%). Participants brainstormed 196 items thought to be necessary for the implementation of an interactive HRA emphasizing psychosocial health. These were consolidated by the research team into 85 items. After sorting and rating, cluster analysis revealed a concept map with a seven-cluster solution: 1) the HRA's equitable availability; 2) the HRA's ease of use and appropriateness; 3) the content of the HRA survey; 4) patient confidentiality and choice; 5) patient comfort through humanistic touch; 6) professional development, care and workload; and 7) clinical management protocol. Drawing insight from the theoretical lens of Sociotechnical theory, the seven clusters of factors required for HRA implementation could be read as belonging to three overarching aspects : Technical (cluster 1, 2 and 3), Social-Patient (cluster 4 and 5), and Social-Provider (cluster 6 and 7). Participants rated every one of the clusters as important, with mean scores from 4.0 to 4.5. Their scores for feasibility were somewhat lower, ranging from 3.4 to. 4.3. Comparing the scores for importance and feasibility, a significant difference was found for one cluster from each region (cluster 2, 5, 6). The cluster on professional development, care and workload was perceived as especially challenging in emergency department settings, and possible reasons were discussed in the interpretation sessions. A number of intertwined multilevel factors emerged as important for the implementation of a computer-assisted, interactive HRA with a focus on psychosocial health. Future developments in this area could benefit from systems thinking and insights from theoretical perspectives, such as sociotechnical system theory for joint optimization and responsible autonomy, with emphasis on both the technical and social aspects of HRA implementation.

78 FR 10175 - Agency Information Collection Activities: Proposed Collection; Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-13

... patient or provider characteristics, physical environment and layout; technical training and support... practice, and, in particular, the technical aspects of clinicians using the health IT system. The focus...; the extent and adequacy of training or instruction patients received in using the health IT; attitudes...

An Interstate Collaborative Approach to Web-Based Instruction.

ERIC Educational Resources Information Center

Grant, Denise; Bryant, Gay; Gilley, Daryl

This paper documents a collaborative effort between faculty members from Pellissippi State Technical Community College (Tennessee) and Northwestern Technical Institute (Georgia) to create and deliver an online class on medical terminology. The following six aspects of the project are described: (1) the collaborative effort, including the viability…

Vertical Lift - Not Just For Terrestrial Flight

NASA Technical Reports Server (NTRS)

Young, Larry A

2000-01-01

Autonomous vertical lift vehicles hold considerable potential for supporting planetary science and exploration missions. This paper discusses several technical aspects of vertical lift planetary aerial vehicles in general, and specifically addresses technical challenges and work to date examining notional vertical lift vehicles for Mars, Titan, and Venus exploration.

Non-technical skills assessment in surgery.

PubMed

Sharma, Bharat; Mishra, Amit; Aggarwal, Rajesh; Grantcharov, Teodor P

2011-09-01

Adverse events in surgery have highlighted the importance of non-technical skills, such as communication, decision-making, teamwork, situational awareness and leadership, to effective organizational performance. These skills carry particular importance to surgical oncology, as members of a multidisciplinary team must work cohesively to formulate effective patient care plans. Several non-technical skills evaluation tools have been developed for use in surgery, without adequate comparison and consensus on which should be standard for training. Eleven articles describing the use of three non-technical evaluation tools related to surgery: NOTSS (Non Technical Skills for Surgeons), NOTECHS (Non Technical Skills) and OTAS (Observational Teamwork Assessment for Surgery) were analyzed with respect to scale formulation, validity, reliability and feasibility. Furthermore, their use in training thus far and the future of non-technical rating scales in surgical curricula was discussed. Future work should focus on incorporating these assessment tools into training and into a real operating room setting to provide formative evaluations for surgical residents. Copyright © 2010 Elsevier Ltd. All rights reserved.

Feasibility and results of a case study of yoga to improve physical functioning in people with chronic traumatic brain injury.

PubMed

Schmid, Arlene A; Miller, Kristine K; Van Puymbroeck, Marieke; Schalk, Nancy

2016-01-01

The purpose of this mixed-methods case study was to investigate whether an 8-week 1:1 yoga program was feasible and beneficial to people with traumatic brain injury (TBI). This was a mixed-methods case study of one-to-one yoga for people with TBI included three people. We completed assessments before and after the 8-week yoga intervention and included measures of balance, balance confidence, pain, range of motion, strength and mobility. Qualitative interviews were included at the post-assessment. We include a percent change calculation and salient quotes that represent the perceived impact of the yoga intervention. All participants completed the yoga intervention and all demonstrated improvements in physical outcome measures. For the group, balance increased by 36%, balance confidence by 39%, lower extremity strength by 100% and endurance by 105%. Qualitative data support the use of yoga to improve multiple aspects of physical functioning, one participant stated: "I mean it's rocked my world. It's changed my life. I mean all the different aspects. I mean physically, emotionally, mentally, it's given me you know my life back…". Yoga, delivered in a one-to-one setting, appears to be feasible and beneficial to people with chronic TBI. Chronic traumatic brain injury (TBI) leads to many aspects of physical functioning impairment. Yoga delivered in a one-to-one setting may be feasible and beneficial for people with chronic TBI.

Teleworking in connection with technical aids for disabled persons.

PubMed

Alimandi, L; Andrich, R; Porqueddu, B

1995-01-01

An experimental teleworking arrangement was established between Milan and Rome in order to evaluate the use of multimedia technology and remote working for improving the service provided by an information and advice centre for the disabled. This activity requires a highly interdisciplinary approach and both clinical and technical expertise. The hypothesis was that offering the lone expert in Rome the possibility of teleconsulting with colleagues in Milan (where the whole range of expertise was available) would provide a comprehensive service for disabled clients asking for advice on technical aids in Rome. The results of an experiment demonstrated the feasibility of such teleworking and allowed a teleconsulting method to be defined that fits the specific needs of the technical-aid information service and improves quality.

Practicality of intraoperative teamwork assessments.

PubMed

Phitayakorn, Roy; Minehart, Rebecca; Pian-Smith, May C M; Hemingway, Maureen W; Milosh-Zinkus, Tanya; Oriol-Morway, Danika; Petrusa, Emil

2014-07-01

High-quality teamwork among operating room (OR) professionals is a key to efficient and safe practice. Quantification of teamwork facilitates feedback, assessment, and improvement. Several valid and reliable instruments are available for assessing separate OR disciplines and teams. We sought to determine the most feasible approach for routine documentation of teamwork in in-situ OR simulations. We compared rater agreement, hypothetical training costs, and feasibility ratings from five clinicians and two nonclinicians with instruments for assessment of separate OR groups and teams. Five teams of anesthesia or surgery residents and OR nurses (RN) or surgical technicians were videotaped in simulations of an epigastric hernia repair where the patient develops malignant hyperthermia. Two anesthesiologists, one OR clinical RN specialist, one educational psychologist, one simulation specialist, and one general surgeon discussed and then independently completed Anesthesiologists' Non-Technical Skills, Non-Technical Skills for Surgeons, Scrub Practitioners' List of Intraoperative Non-Technical Skills, and Observational Teamwork Assessment for Surgery forms to rate nontechnical performance of anesthesiologists, surgeons, nurses, technicians, and the whole team. Intraclass correlations of agreement ranged from 0.17-0.85. Clinicians' agreements were not different from nonclinicians'. Published rater training was 4 h for Anesthesiologists' Non-Technical Skills and Scrub Practitioners' List of Intraoperative Non-Technical Skills, 2.5 h for Non-Technical Skills for Surgeons, and 15.5 h for Observational Teamwork Assessment for Surgery. Estimated costs to train one rater to use all instruments ranged from $442 for a simulation specialist to $6006 for a general surgeon. Additional training is needed to achieve higher levels of agreement; however, costs may be prohibitive. The most cost-effective model for real-time OR teamwork assessment may be to use a simulation technician combined with one clinical rater to allow complete documentation of all participants. Copyright © 2014 Elsevier Inc. All rights reserved.

Evaluating Inundation in Urban Drainage Systems in Tamalanrea District Makassar Based Ecodrainase

NASA Astrophysics Data System (ADS)

Alfidhdha, Rizky; Karnaningroem, Nieke

2018-03-01

Makassar City is one of the major cities in Indonesia with a population of approximately 1.7 million inhabitants, which continues to grow and followed the development of urban infrastructure facilities. The development also resulted in adverse effects on the environment, especially for water catchment area turns into a watertight region resulting changes in surface runoff were greater, especially in the rainy season because the drainage coefficient values are increasing as well. The purpose of this study was to analyze the capacity of the capacity of drainage channels in terms of technical aspects, analyze and formulate efforts to address flooding in a drainage channel system environmentally friendly in terms of environmental aspects, and Calculating the cost and benefit the development of the handling of flooding with a drainage channel system environmentally friendly in terms of financial aspects. The results obtained from the analysis of the technical aspects there are 14 of 41 channel capacity is insufficient accommodation capacity, resulting in the analysis of environmental aspects require 867 infiltration wells, and 3.19 rate of Benefit Cost Ratio (BCR).

16 CFR 0.20 - Office of International Affairs.

Code of Federal Regulations, 2010 CFR

2010-01-01

... consumer protection aspects of trade fora and negotiations, such as the U.S. inter-agency delegations... international antitrust, international consumer protection, and international technical assistance. OIA is... advice to the Bureaus of Competition and Consumer Protection with regard to the international aspects of...

Solar pond power plant feasibility study for Davis, California

NASA Technical Reports Server (NTRS)

Wu, Y. C.; Singer, M. J.; Marsh, H. E.; Harris, J.; Walton, A. L.

1982-01-01

The feasibility of constructing a solar pond power plant at Davis, California was studied. Site visits, weather data compilation, soil and water analyses, conceptual system design and analyses, a material and equipment market survey, conceptual site layout, and a preliminary cost estimate were studied. It was concluded that a solar pond power plant is technically feasible, but economically unattractive. The relatively small scale of the proposed plant and the high cost of importing salt resulted in a disproportionately high capital investment with respect to the annual energy production capacity of the plant. Cycle optimization and increased plant size would increase the economical attractiveness of the proposed concept.

Methods of predicting aggregate voids : [technical summary].

DOT National Transportation Integrated Search

2013-03-01

Percent voids in combined aggregates vary significantly. Simplified methods of predicting aggregate voids were studied to determine the feasibility of a range of gradations using aggregates available in Kansas. : The 0.45 Power Curve Void Prediction ...

Ixion: A Wet-Lab Habitat Platform for Leo and the Deep Space Gateway

NASA Astrophysics Data System (ADS)

Wald, S. I.; Cummins, C. K.; Manber, J.

2018-02-01

Cislunar and LEO habitats derived from launch vehicle upper stages are technically feasible and continues development toward flight. Present station specifications, configurations, and concepts for scientific, exploration, and commercial utilization.

Maglev System Concept Definition (SCD) System Safety Review

DOT National Transportation Integrated Search

1993-01-07

As part of the National Maglev Initiative (NMI), the Federal Railroad : Administration (FRA) solicited proposals to conceptually define the technical feasibility, : performance and costs of constructing and operating Maglev systems in the United : St...

Analysis of commercial equipment and instrumentation for Spacelab payloads, volume 2

NASA Technical Reports Server (NTRS)

1974-01-01

Technical results are presented of a study to investigate analytically the feasibility of using commercially available laboratory equipment and instrumentation in the spacelab in support of various experiments. The feasibility is demonstrated by the breadth of application of commercial, airborne, and military equipment to experiment equipment requirements in the spacelab, and the cost effectiveness of utilizing this class of equipment instead of custom-built aerospace equipment typical of past designs. Equipment design and specifications are discussed.

Technical and economic feasibility of integrated video service by satellite

NASA Technical Reports Server (NTRS)

Price, K. M.; Kwan, R. K.; White, L. W.; Garlow, R. K.; Henderson, T. R.

1992-01-01

A feasibility study is presented of utilizing modern satellite technology, or more advanced technology, to create a cost-effective, user-friendly, integrated video service, which can provide videophone, video conference, or other equivalent wideband service on demand. A system is described that permits a user to select a desired audience and establish the required links similar to arranging a teleconference by phone. Attention is given to video standards, video traffic scenarios, satellite system architecture, and user costs.

Aquifer thermal energy storage program

NASA Technical Reports Server (NTRS)

Fox, K.

1980-01-01

The purpose of the Aquifer Thermal Energy Storage Demonstration Program is to stimulate the interest of industry by demonstrating the feasibility of using a geological formation for seasonal thermal energy storage, thereby, reducing crude oil consumption, minimizing thermal pollution, and significantly reducing utility capital investments required to account for peak power requirements. This purpose will be served if several diverse projects can be operated which will demonstrate the technical, economic, environmental, and institutional feasibility of aquifer thermal energy storage systems.

On the Feasibility of a Pulsed 14 TeV C.M.E. Muon Collider in the LHC Tunnel

DOE Office of Scientific and Technical Information (OSTI.GOV)

Shiltsev, Vladimir; Neuffer, D.

We discuss the technical feasibility, key machine pa-rameters and major challenges of a 14 TeV c.m.e. muon-muon collider in the LHC tunnel [1]. The luminosity of the collider is evaluated for three alternative muon sources – the PS synchrotron, one of a type developed by the US Muon Accelerator Program (MAP) and a low-emittance option based on resonant μ-pair production.

Jefferson Proving Ground, South of the Fining Line, Final Remedial Investigation/Feasibility Study, Resource Management Plan

DTIC Science & Technology

1993-01-01

and various DOD sites. I From 1984 to 1987, Mr. Pincock was a Certified Radiation and Chemistry Technician for United Nuclear Industries. He performed...in 1983, Mr. Pincock assisted the senior technical staff in radiation protection as a Junior Health Physics Technician at the Nuclear Support Services...SCOPE OF PROGRAM This plan contains a description of the personnel and procedures for managing the Remedial Investigation/Feasibility Study (RI/FS) at

West Angeles Community Development Corporation final technical report on export market feasibility planning and research for the solar medical autoclave

DOE Office of Scientific and Technical Information (OSTI.GOV)

Power, G.D.

1998-04-20

This report summarizes core findings from an investigation performed by the staff of West Angeles Community Development Corporation (CDC) regarding the feasibility of marketing the Solar Medical Autoclave (``autoclave``) in South Africa. The investigation was completed during 1997, the period prescribed by the Grant Award made by the U.S. Department of Energy on January 1, 1997, and was monitored by the National Renewable Energy Laboratory.

Disease eradication as a public health strategy: a case study of poliomyelitis eradication.

PubMed Central

Aylward, R. B.; Hull, H. F.; Cochi, S. L.; Sutter, R. W.; Olivé, J. M.; Melgaard, B.

2000-01-01

Disease eradication as a public health strategy was discussed at international meetings in 1997 and 1998. In this article, the ongoing poliomyelitis eradication initiative is examined using the criteria for evaluating candidate diseases for eradication proposed at these meetings, which covered costs and benefits, biological determinants of eradicability (technical feasibility) and societal and political considerations (operational feasibility). The benefits of poliomyelitis eradication are shown to include a substantial investment in health services delivery, the elimination of a major cause of disability, and far-reaching intangible effects, such as establishment of a "culture of prevention". The costs are found to be financial and finite, despite some disturbances to the delivery of other health services. The "technical" feasibility of poliomyelitis eradication is seen in the absence of a non-human reservoir and the presence of both an effective intervention and delivery strategy (oral poliovirus vaccine and national immunization days) and a sensitive and specific diagnostic tool (viral culture of specimens from acute flaccid paralysis cases). The certification of poliomyelitis eradication in the Americas in 1994 and interruption of endemic transmission in the Western Pacific since March 1997 confirm the operational feasibility of this goal. When the humanitarian, economic and consequent benefits of this initiative are measured against the costs, a strong argument is made for eradication as a valuable disease control strategy. PMID:10812724

Integrating HCI Specialists into Open Source Software Development Projects

NASA Astrophysics Data System (ADS)

Hedberg, Henrik; Iivari, Netta

Typical open source software (OSS) development projects are organized around technically talented developers, whose communication is based on technical aspects and source code. Decision-making power is gained through proven competence and activity in the project, and non-technical end-user opinions are too many times neglected. In addition, also human-computer interaction (HCI) specialists have encountered difficulties in trying to participate in OSS projects, because there seems to be no clear authority and responsibility for them. In this paper, based on HCI and OSS literature, we introduce an extended OSS development project organization model that adds a new level of communication and roles for attending human aspects of software. The proposed model makes the existence of HCI specialists visible in the projects, and promotes interaction between developers and the HCI specialists in the course of a project.

Fast 3-T MR-guided transrectal prostate biopsy using an in-room tablet device for needle guide alignment: a feasibility study.

PubMed

Overduin, Christiaan G; Heidkamp, Jan; Rothgang, Eva; Barentsz, Jelle O; de Lange, Frank; Fütterer, Jurgen J

2018-05-22

To assess the feasibility of adding a tablet device inside the scanner room to assist needle-guide alignment during magnetic resonance (MR)-guided transrectal prostate biopsy. Twenty patients with one cancer-suspicious region (CSR) with PI-RADS score ≥ 4 on diagnostic multiparametric MRI were prospectively enrolled. Two orthogonal scan planes of an MR fluoroscopy sequence (~3 images/s) were aligned to the CSR and needle-guide pivoting point. Targeting was achieved by manipulating the needle-guide under MR fluoroscopy feedback on the in-room tablet device. Technical feasibility and targeting success were assessed. Complications and biopsy procedure times were also recorded. Needle-guide alignment with the in-room tablet device was technically successful in all patients and allowed sampling after a single alignment step in 19/20 (95%) CSRs (median size 14 mm, range: 4-45). Biopsy cores contained cancer in 18/20 patients. There were no per-procedural or post-biopsy complications. Using the tablet device, the mean time to first biopsy was 5.8 ± 1.0 min and the mean total procedure time was 23.7 ± 4.1 min. Use of an in-room tablet device to assist needle-guide alignment was feasible and safe during MR-guided transrectal prostate biopsy. Initial experience indicates potential for procedure time reduction. • Performing MR-guided prostate biopsy using an in-room tablet device is feasible. • CSRs could be sampled after a single alignment step in 19/20 patients. • The mean procedure time for biopsy with the tablet device was 23.7 min.

A risk assessment methodology to evaluate the risk failure of managed aquifer recharge in the Mediterranean Basin

NASA Astrophysics Data System (ADS)

Rodríguez-Escales, Paula; Canelles, Arnau; Sanchez-Vila, Xavier; Folch, Albert; Kurtzman, Daniel; Rossetto, Rudy; Fernández-Escalante, Enrique; Lobo-Ferreira, João-Paulo; Sapiano, Manuel; San-Sebastián, Jon; Schüth, Christoph

2018-06-01

Managed aquifer recharge (MAR) can be affected by many risks. Those risks are related to different technical and non-technical aspects of recharge, like water availability, water quality, legislation, social issues, etc. Many other works have acknowledged risks of this nature theoretically; however, their quantification and definition has not been developed. In this study, the risk definition and quantification has been performed by means of fault trees and probabilistic risk assessment (PRA). We defined a fault tree with 65 basic events applicable to the operation phase. After that, we have applied this methodology to six different managed aquifer recharge sites located in the Mediterranean Basin (Portugal, Spain, Italy, Malta, and Israel). The probabilities of the basic events were defined by expert criteria, based on the knowledge of the different managers of the facilities. From that, we conclude that in all sites, the perception of the expert criteria of the non-technical aspects were as much or even more important than the technical aspects. Regarding the risk results, we observe that the total risk in three of the six sites was equal to or above 0.90. That would mean that the MAR facilities have a risk of failure equal to or higher than 90 % in the period of 2-6 years. The other three sites presented lower risks (75, 29, and 18 % for Malta, Menashe, and Serchio, respectively).

Heat strain models applicable for protective clothing: Comparison of core temperature response. Technical report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gonzalez, R.R.; McLellan, T.M.; Withey, W.R.

This report represents the results of TTCP-UTP6 efforts on modeling aspects when chemical protective ensembles are worn which need to be considered in warm environments. Since 1983, a significant data base has been collected using human experimental studies and wide clothing systems from which predictive modeling equations have been developed with individuals working in temperate and hot environments, but few comparisons of the -- results from various model outputs have ever been carried out. This initial comparison study was part of a key technical area (KIA) project for The Technical Cooperation Program (TTCP) UTP-6 working party. A modeling workshop wasmore » conducted in Toronto, Canada on 9-10 June 1994 to discuss the data reduction and results acquired in an initial clothing analysis study of TTCP using various chemical protective garments. To our knowledge, no comprehensive study to date has ever focused on comparing experimental results using an international standardized heat stress procedure matched to physiological outputs from various model predictions in individuals dressed in chemical protective clothing systems. This is the major focus of this TTCP key technical study. This technical report covers one aspect of the working party`s results.« less

A case for biofuels in aviation

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1996-12-31

In the last 15 years, the technical and the economic feasibility of biomass based fuels for general aviation piston engines has been proven. Exhaustive ground and flight tests performed at the Renewable Aviation Fuels Development Center (RAFDC) using ethanol, ethanol/methanol blends, and ETBE have proven these fuels to be superior to aviation gasoline (avgas) in all aspects of performance except range. Two series of Lycoming engines have been certified. Record flights, including a transatlantic flight on pure ethanol, were made to demonstrate the reliability of the fuel. Aerobatic demonstrations with aircraft powered by ethanol, ethanol/methanol, and ETBE were flown atmore » major airshows around the world. the use of bio-based fuels for aviation will benefit energy security, improve the balance of trade, domestic economy, and environmental quality. The United States has the resources to supply the aviation community`s needs with a domestically produced fuel using current available technology. The adoption of a renewable fuel in place of conventional petroleum-based fuels for aviation piston and turbine engines is long overdue.« less

An intelligent robot for helping astronauts

NASA Technical Reports Server (NTRS)

Erickson, J. D.; Grimm, K. A.; Pendleton, T. W.

1994-01-01

This paper describes the development status of a prototype supervised intelligent robot for space application for purposes of (1) helping the crew of a spacecraft such as the Space Station with various tasks, such as holding objects and retrieving/replacing tools and other objects from/into storage, and (2) for purposes of retrieving detached objects, such as equipment or crew, that have become separated from their spacecraft. In addition to this set of tasks in this low-Earth-orbiting spacecraft environment, it is argued that certain aspects of the technology can be viewed as generic in approach, thereby offering insight into intelligent robots for other tasks and environments. Candidate software architectures and their key technical issues which enable real work in real environments to be accomplished safely and robustly are addressed. Results of computer simulations of grasping floating objects are presented. Also described are characterization results on the usable reduced gravity environment in an aircraft flying parabola (to simulate weightlessness) and results on hardware performance there. These results show it is feasible to use that environment for evaluative testing of dexterous grasping based on real-time vision of freely rotating and translating objects.

Siting process for disposal site of low level radiactive waste in Thailand

DOE Office of Scientific and Technical Information (OSTI.GOV)

Yamkate, P.; Sriyotha, P.; Thiengtrongjit, S.

The radioactive waste in Thailand is composed of low level waste from the application of radioisotopes in medical treatment and industry, the operation of the 2 MW TRIGA Mark III Research Reactor and the production of radioisotopes at OAEP. In addition, the high activity of sealed radiation sources i.e. Cs-137 Co-60 and Ra-226 are also accumulated. Since the volume of treated waste has been gradually increased, the general needs for a repository become apparent. The near surface disposal method has been chosen for this aspect. The feasibility study on the underground disposal site has been done since 1982. The sitemore » selection criteria have been established, consisting of the rejection criteria, the technical performance criteria and the economic criteria. About 50 locations have been picked for consideration and 5 candidate sites have been selected and subsequent investigated. After thoroughly investigation, a definite location in Ratchburi Province, about 180 kilometers southwest of Bangkok, has been selected as the most suitable place for the near surface disposal of radioactive waste in Thailand.« less

DOE Office of Scientific and Technical Information (OSTI.GOV)

Das, K. C., Adams; Thomas, T; Eiteman, Mark A

In this project we focused on several aspects of technology development that advances the formation of an integrated biorefinery. These focus areas include: [ 1] pretreatment of biomass to enhance quality of products from thermochemical conversion; [2] characterization of and development of coproduct uses; [3] advancement in fermentation of lignocellulosics and particularly C5 and C6 sugars simultaneously, and [ 4] development of algal biomass as a potential substrate for the biorefinery. These advancements are intended to provide a diverse set of product choices within the biorefinery, thus improving the cost effectiveness of the system. Technical effectiveness was demonstrated in themore » thermochemical product quality in the form of lower tar production, simultaneous of use of multiple sugars in fermentation, use ofbiochar in environmental (ammonia adsorption) and agricultural applications, and production of algal biomass in wastewaters. Economic feasibility of algal biomass production systems seems attractive, relative to the other options. However, further optimization in all paths, and testing/demonstration at larger scales are required to fully understand the economic viabilities. The coproducts provide a clear picture that multiple streams of value can be generated within an integrated biorefinery, and these include fuels and products.« less

[Robot-assisted minimally invasive lobectomy with systematic lymphadenectomy for lung cancer].

PubMed

Egberts, J-H; Schlemminger, M; Schafmayer, C; Dohrmann, P; Becker, T

2015-02-01

Lobectomy for lung cancer is the standard therapy for lung cancer in limited stages. The adoption of minimally invasive lobectomy (video-assisted thoracic surgery or VATS lobectomy) has increased worldwide since its first description more than 15 years ago. However, the VATS technique has a long learning curve and sometimes limitations in terms of precise preparation and presentability of the central structures of the lung hilus due to the limited mobility of the standard thoracoscopic instruments. By using a four-arm robotic platform (DaVinci®), not only the preparation of the hilus structures but also the central lymphadenectomy can be performed in a comfortable and safe way under a clear and precise view. Surgical treatment of locally limited lung cancer in the right lower lobe (squamous cell carcinoma). Robot-assisted, minimally invasive right lower lobectomy with systematic lymphadenectomy. Robot-assisted minimal invasive lobectomy is feasible with special regard to oncological and technical aspects. Especially the intrathoracic precise dissection of the tissue under a perfect view allow a comfortable and safe operation technique. Georg Thieme Verlag KG Stuttgart · New York.

Urban Water Conservation

NASA Astrophysics Data System (ADS)

Moomaw, Ronald L.

According to its abstract, this book attempts ‘an assessment of various water conservation measures aimed at reducing residential water usage.’ Its intent is to develop a research program whose ‘ultimate goal is to engender a conservation ethic among water users and managers and develop a predictable array of conservation methodologies. …’ Professor Flack indeed has presented an excellent assessment of conservation methodologies, but I believe that the proposed research program is too limited.Following a brief introductory chapter, chapter II presents an extensive review of the water conservation literature published in the 1970's and earlier. It and chapter III, which describes Flack's systematic comparison of the technical, economic, and political aspects of each conservation methodology, are the heart of the book. Chapter IV is a brief discussion and analysis of conservation programs (with examples) that a water utility might adopt. Chapter V is essentially a pilot study of methods of assessing political and social feasibility. Finally, a set of recommendations is presented in chapter VI. All in all, this book is a nice blend of literature review and original research that deals with an important issue.

In-Situ Resource Utilization for further exploration of the Moon

NASA Astrophysics Data System (ADS)

Thakore, B.; Pohajsky, S.

In-Situ Resource Utilization ISRU is the concept of living off the land Initially proposed in the mid 20th Century many experts have suggested that ISRU is an important enabler for the expansion of humanity beyond the confines of limited resources on Earth However even today ISRU remains a relatively underdeveloped and under--demonstrated in current exploration roadmaps This paper summarizes the proposals of an interdisciplinary study carried out by 27 students from 17 different countries at the International Space University The study reviewed the past and present ISRU techniques and related robotic technologies in the context of complementing the Moon and Mars exploration scenarios of the major space faring countries The economic viability and benefits of ISRU are examined together with the regulatory ethical and cultural aspects of space resource utilisation The renewed opportunities for moon exploration have rekindled interest in ISRU as an enabling technology It is important to assess both the tangible and intangible benefits of this technology in order to evaluate the technical and economic feasibility of adopting it in support of human exploration of the Moon Mars and beyond

Therapeutic aspects of endoscopic ultrasound

NASA Astrophysics Data System (ADS)

Woodward, Timothy A.

1999-06-01

Endoscopic ultrasound (EUS) is a technology that had been used primarily as a passive imaging modality. Recent advances have enabled us to move beyond the use of EUS solely as a staging tool to an interventional device. Current studies suggest that interventional applications of EUS will allow for minimally invasive assessment and therapies in a cost-effective manner. Endoscopic ultrasound with fine needle aspiration (EUS-FNA) has been demonstrated to be a technically feasible, relatively safe method of obtaining cytologic specimens. The clinical utility of EUS- FNA appears to be greatest in the diagnosis and staging of pancreatic cancer and in the nodal staging of gastrointestinal and pulmonary malignancies. In addition, EUS-FNA has demonstrated utility in the sampling pleural and ascitic fluid not generally appreciated or assessable to standard interventions. Interventional applications of EUS include EUS-guided pseudocyst drainage, EUS-guided injection of botulinum toxin in the treatment of achalasia, and EUS- guided celiac plexus neurolysis in the treatment of pancreatic cancer pain. Finally, EUS-guided fine-needle installation is being evaluated, in conjunction with recent bimolecular treatment modalities, as a delivery system in the treatment of certain gastrointestinal tumors.

Tinkering and Technical Self-Efficacy of Engineering Students at the Community College

ERIC Educational Resources Information Center

Baker, Dale R.; Wood, Lorelei; Corkins, James; Krause, Stephen

2015-01-01

Self-efficacy in engineering is important because individuals with low self-efficacy have lower levels of achievement and persistence in engineering majors. To examine self-efficacy among community college engineering students, an instrument to specifically measure two important aspects of engineering, tinkering and technical self-efficacy, was…

Chameleon or Phoenix: The Metamorphosis of TAFE.

ERIC Educational Resources Information Center

Anderson, Damon

1998-01-01

Examines aspects of the history of technical and vocational education (TAFE) in Australia: technical education system in Victoria; dissolution of the binary system in higher education; and new instructional discourses and practices shaping TAFE. Speculates on the potential reemergence of the binary system and future prospects for TAFE. (SK)

"Let There Be Light" Minicourse, Career Oriented Pre-Technical Physics.

ERIC Educational Resources Information Center

Dallas Independent School District, TX.

This instructional guide, intended for student use, develops the concept of light through a series of sequential activities. A technical development of the subject is pursued with examples stressing practical aspects of the concepts. Included in the minicourse are: (1) the rationale, (2) terminal behavioral objectives, (3) enabling behavioral…

Proceedings: International Technical Communication Conference (30th, St. Louis, Missouri, May 1-4, 1983).

ERIC Educational Resources Information Center

Society for Technical Communication, Washington, DC.

Prepared by representatives of government, business, industry, and education, the papers in this compilation deal with a variety of aspects of technical communication. The approximately 150 papers are arranged according to the following categories: advanced technology applications, graphics and production, management and professional development,…

Radioactivity and Man Minicourse, Career Oriented Pre-Technical Physics.

ERIC Educational Resources Information Center

Dallas Independent School District, TX.

This instructional guide, intended for student use, develops the subject of radioactivity and man through a series of sequential activities. A technical development of the subject is pursued with examples stressing practical aspects of the concepts. Included in the minicourse are: (1) the rationale, (2) terminal behavioral objectives, (3) enabling…

76 FR 6766 - Meeting of the Defense Science Board

Federal Register 2010, 2011, 2012, 2013, 2014

2011-02-08

... Acquisition, Technology & Logistics on scientific and technical matters as they affect the perceived needs of... scientific and technical aspects of specific strategies, tactics, and policies as they may affect the U.S... the DoD Office of General Counsel, has determined in writing that all sessions of these meetings will...

The Job Training and Job Satisfaction Survey Technical Manual

ERIC Educational Resources Information Center

Schmidt, Steven W.

2004-01-01

Job training has become an important aspect of an employee's overall job experience. However, it is not often called out specifically on instruments measuring job satisfaction. This technical manual details the processes used in the development and validation of a survey instrument to measure job training satisfaction and overall job…

High Technology Training at Greenville Technical College.

ERIC Educational Resources Information Center

Barton, Thomas E.; And Others

These three papers focus on various aspects of high technology training at Greenville Technical College (GTC). First, "High Technology and the Community College," by Thomas E. Barton, discusses what high technology should mean to educators and argues that changes in the nature of industrial production require that community colleges not only keep…

Archival Stability of Microfilm--A Technical Review.

ERIC Educational Resources Information Center

Materazzi, Albert R.

The purpose of this report is to acquaint all personnel with some technical aspects of micrographics. The various film types used in the production of microfiche are discussed, including silver halide, diazo, and vesicular films. Other imaging systems used in micrographics are reviewed, and a basic introduction to sensitometry is given. The…

Cost Effectiveness in Evaluation Technical Assistance: Different Aspects of Measuring Cost and Outcomes.

ERIC Educational Resources Information Center

Estes, Gary D.

The paper focuses on the Title I Evaluation Technical Assistance Centers to illustrate issues of measuring costs and deciding on outcome criteria before promoting "cost-effective" approaches. Effects are illustrated for varying resource allocations among personnel, travel, materials, and phone costs as a function of emphasizing…

North Boundry Containment/Treatment System Performance Report. Rocky Mountain Arsenal, Denver, Colorado. Volume 1

DTIC Science & Technology

1985-12-01

Department of Health after reviewing the proposed 1700-ft expansion concept, stated that the north boundary system would be required to intercept and treat...upper Denver sand units along the system alignment. 8. During May 1979, technical discussions between RMA and the Colorado Department of Health ...centered on the technical feasibility and benefits of constructing a 1200-ft segment of the proposed 1700-ft expansion immediately to intercept a DBCP plume

Mobile communications satellite antenna flight experiment definition

NASA Technical Reports Server (NTRS)

Freeland, Robert E.

1987-01-01

Results of a NASA-sponsored study to determine the technical feasibility and cost of a Shuttle-based flight experiment specifically intended for the MSAT commercial user community are presented. The experiment will include demonstrations of technology in the areas of radio frequency, sensing and control, and structures. The results of the structural subsystem study summarized here include experiment objective and technical approach, experiment structural description, structure/environment interactions, structural characterization, thermal characterization, structural measurement system, and experiment functional description.

National Alliance for Advanced Biofuels and Bio-Products Final Technical Report

DOE Office of Scientific and Technical Information (OSTI.GOV)

Olivares, Jose A.; Baxter, Ivan; Brown, Judith

2014-09-30

The main objective of NAABB was to combine science, technology, and engineering expertise from across the nation to break down critical technical barriers to commercialization of algae-based biofuels. The approach was to address technology development across the entire value chain of algal biofuels production, from selection of strains to cultivation, harvesting, extraction, fuel conversion, and agricultural coproduct production. Sustainable practices and financial feasibility assessments ununderscored the approach and drove the technology development.

Evaluation of ERDA-sponsored coal feed system development

NASA Technical Reports Server (NTRS)

Phen, R. L.; Luckow, W. K.; Mattson, L.; Otth, D.; Tsou, P.

1977-01-01

Coal feeders were evaluated based upon criteria such as technical feasibility, performance (i.e. ability to meet process requirements), projected life cycle costs, and projected development cost. An initial set of feeders was selected based on the feeders' cost savings potential compared with baseline lockhopper systems. Additional feeders were considered for selection based on: (1) increasing the probability of successful feeder development; (2) application to specific processes; and (3) technical merit. A coal feeder development program is outlined.

US-Guided, Direct Puncture Retrograde Thoracic Duct Access, Lymphangiography, and Embolization: Feasibility and Efficacy.

PubMed

Guevara, Carlos J; Rialon, Kristy L; Ramaswamy, Raja S; Kim, Seung K; Darcy, Michael D

2016-12-01

To describe technical details, success rate, and advantages of direct puncture of the thoracic duct (TD) under direct ultrasound (US) guidance at venous insertion in the left neck. All patients who underwent attempted thoracic duct embolization (TDE) via US-guided retrograde TD access in the left neck were retrospectively reviewed. Indications for lymphangiography were iatrogenic chyle leak, pulmonary lymphangiectasia, and plastic bronchitis. Ten patients with mean age 41.4 years (range, 21 d to 72 y) underwent US-guided TD access via the left neck. Technical details, procedural times, and clinical outcomes were evaluated. TD access time was defined as time from start of procedure to successful access of TD, and total procedural time was defined from start of procedure until TDE. All attempts at TD access via the neck were successful. Technical and clinical success of TDE was 60%. There were no complications. Mean TD access time was 17 minutes (range, 2-47 min), and mean total procedure time was 49 minutes (range, 25-69 min). Mean follow-up time was 5.4 months (range, 3-10 months). TDE via US-guided access in the left neck is technically feasible and safe with a potential decrease in procedure time and elimination of oil-based contrast material. Copyright © 2016 SIR. Published by Elsevier Inc. All rights reserved.

Liver CT image processing: a short introduction of the technical elements.

PubMed

Masutani, Y; Uozumi, K; Akahane, Masaaki; Ohtomo, Kuni

2006-05-01

In this paper, we describe the technical aspects of image analysis for liver diagnosis and treatment, including the state-of-the-art of liver image analysis and its applications. After discussion on modalities for liver image analysis, various technical elements for liver image analysis such as registration, segmentation, modeling, and computer-assisted detection are covered with examples performed with clinical data sets. Perspective in the imaging technologies is also reviewed and discussed.

The NASA Scientific and Technical Information System: Its scope and coverage

NASA Technical Reports Server (NTRS)

1978-01-01

Subjects of scientific and technical documents considered for inclusion in NASA's information bank are broadly summarized under the various categories used in Scientific and Technical Aerospace Reports and International Aerospace Abstracts. A general definition of each category is followed by a list of the aspects of each subject which are of exhaustive, selective, or negative interest because of their relevance to aerospace science and technology and to other NASA projects.

Nuclear powerplants for mobile applications.

NASA Technical Reports Server (NTRS)

Anderson, J. L.

1972-01-01

Mobile nuclear powerplants for applications other than large ships and submarines will require compact, lightweight reactors with especially stringent impact-safety design. This paper examines the technical and economic feasibility that the broadening role of civilian nuclear power, in general, (land-based nuclear electric generating plants and nuclear ships) can extend to lightweight, safe mobile nuclear powerplants. The paper discusses technical experience, identifies potential sources of technology for advanced concepts, cites the results of economic studies of mobile nuclear powerplants, and surveys future technical capabilities needed by examining the current use and projected needs for vehicles, machines, and habitats that could effectively use mobile nuclear reactor powerplants.

Nuclear power plants for mobile applications

NASA Technical Reports Server (NTRS)

Anderson, J. L.

1972-01-01

Mobile nuclear powerplants for applications other than large ships and submarines will require compact, lightweight reactors with especially stringent impact-safety design. The technical and economic feasibility that the broadening role of civilian nuclear power, in general, (land-based nuclear electric generating plants and nuclear ships) can extend to lightweight, safe mobile nuclear powerplants are examined. The paper discusses technical experience, identifies potential sources of technology for advanced concepts, cites the results of economic studies of mobile nuclear powerplants, and surveys future technical capabilities needed by examining the current use and projected needs for vehicles, machines, and habitats that could effectively use mobile nuclear reactor powerplants.

Software licensing policy for the Open Source Application Development Portal (OSADP).

DOT National Transportation Integrated Search

1998-07-01

The purpose of the Commercial Vehicle Information Systems and Networks Model Deployment Initiative (CVISN MDI) is to demonstrate the technical and institutional feasibility, costs, and benefits of the primary Intelligent Transportation Systems (ITS) ...

Near-term feasibility of alternative jet fuels

DOT National Transportation Integrated Search

2009-01-01

This technical report documents the results of a joint study by the Massachusetts Institute of Technology (MIT) and the RAND Corporation on alternative fuels for commercial aviation. The study compared potential alternative jet fuels on the basis of ...

40 CFR 51.1010 - Requirements for reasonably available control technology (RACT) and reasonably available control...

Code of Federal Regulations, 2010 CFR

2010-07-01

... the list of the potential measures considered by the State, and information and analysis sufficient to.... Potential measures that are reasonably available considering technical and economic feasibility must be...

EMERGING TECHNOLOGY SUMMARY: DEMONSTRATION OF AMBERSORB 563 ADSORBENT TECHNOLOGY

EPA Science Inventory

A field pilot study was conducted to demonstrate the technical feasibility and cost-effectiveness of Ambersorb® 5631 carbonaceous adsorbent for remediating groundwater contaminated with volatile organic compounds (VOCs). The Ambersorb adsorbent technology demonstration consist...

RETROFITTING CONTROL FACILITIES FOR WET WEATHER FLOW TREATMENT

EPA Science Inventory

Available technologies were evaluated to demonstrate the technical feasibility and cost-effectiveness of retrofitting existing facilities to handle wet-weather flow. Cost/benefit relationships were also compared to construction of new conventional control and treatment facilitie...

RETROFITTING CONTROL FACILITIES FOR WET-WEATHER FLOW TREATMENT

EPA Science Inventory

Available technologies were evaluated to demonstrate the technical feasibility and cost effectiveness of retrofitting existing facilities to handle wet-weather flow. Cost/benefit relationships were also compared to construction of new conventional control and treatment facilities...

Rapid Prototyping of Robotic Systems

DTIC Science & Technology

2007-06-01

Nowak, S. Peterson, “Feature Oriented Domain Analysis ( FODA ) Feasibility Study,” Technical Report, CMU/SEI-90-TR-21, Software Engineering Institute...32 3. Embedded System Control Language..............................................33 viii 4. Architecture Analysis and Design Language...41 5. Analysis

78 FR 77024 - Telemarketing Sales Rule; Notice of Termination of Caller ID Rulemaking

Federal Register 2010, 2011, 2012, 2013, 2014

2013-12-20

..., data mining and anomaly detection, and call-blocking technology). \\19\\ AT&T Servs., Inc., No. 00040, at... technically feasible, by looking at the signaling data . . . to distinguish between a CPN [calling party...

7 CFR 4280.103 - Definitions.

Code of Federal Regulations, 2011 CFR

2011-01-01

... established design, and installation procedures and practices. Professional service providers, trades, large... term without grant assistance. Design/build method. A method of project development whereby all design..., or encumbrances. Feasibility study. An analysis of the economic, market, technical, financial, and...

7 CFR 4280.103 - Definitions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... established design, and installation procedures and practices. Professional service providers, trades, large... term without grant assistance. Design/build method. A method of project development whereby all design..., or encumbrances. Feasibility study. An analysis of the economic, market, technical, financial, and...

Valorisation of food waste to produce new raw materials for animal feed.

PubMed

San Martin, D; Ramos, S; Zufía, J

2016-05-01

This study assesses the suitability of vegetable waste produced by food industry for use as a raw material for animal feed. It includes safety and nutritional viability, technical feasibility and environmental evaluation. Vegetable by-products were found to be nutritionally and sanitarily appropriate for use in animal feed. The drying technologies tested for making vegetable waste suitable for use in the animal feed market were pulse combustion drying, oven and microwave. The different meal prototypes obtained were found to comply with all the requirements of the animal feed market. An action plan that takes into account all the stages of the valorisation process was subsequently defined in agreement with local stakeholders. This plan was validated in a pilot-scale demonstration trial. Finally, the technical feasibility was studied and environmental improvement was performed. This project was funded by the European LIFE+ program (LIFE09 ENV/ES/000473). Copyright © 2015 Elsevier Ltd. All rights reserved.

Robot-assisted antegrade in-situ fenestrated stent grafting.

PubMed

Riga, Celia V; Bicknell, Colin D; Wallace, Daniel; Hamady, Mohamad; Cheshire, Nicholas

2009-05-01

To determine the technical feasibility of a novel approach of in-situ fenestration of aortic stent grafts by using a remotely controlled robotic steerable catheter system in the porcine model. A 65-kg pig underwent robot-assisted bilateral antegrade in-situ renal fenestration of an abdominal aortic stent graft with subsequent successful deployment of a bare metal stent into the right renal artery. A 16-mm iliac extension covered stent served as the porcine aortic endograft. Under fluoroscopic guidance, the graft was punctured with a 20-G customized diathermy needle that was introduced and kept in place by the robotic arm. The needle was exchanged for a 4 x 20 mm cutting balloon before successful deployment of the renal stent. Robot-assisted antegrade in-situ fenestration is technically feasible in a large mammalian model. The robotic system enables precise manipulation, stable positioning, and minimum instrumentation of the aorta and its branches while minimizing radiation exposure.

Solar energy in California industry - Applications, characteristics and potential

NASA Technical Reports Server (NTRS)

Barbieri, R. H.; Pivirotto, D. S.

1978-01-01

Results of a survey to determine the potential applicability of solar thermal energy to industrial processes in California are presented. It is found that if the heat for all industrial processes at temperatures below 212 F were supplied by solar energy, total state energy consumption could be reduced by 100 trillion Btus (2%), while the use of solar energy in processes between 212 and 350 F could displace 500 trillion Btus. The issues and problems with which solar energy must contend are illustrated by a description of fluid milk processing operations. Solar energy application is found to be technically feasible for processes with thermal energy requirements below 212 F, with design, and degree of technical, economic and management feasibility being site specific. It is recommended that the state provide support for federal and industrial research, development and demonstration programs in order to stimulate acceptance of solar process heat application by industry.

First Steps in the Smart Grid Framework: An Optimal and Feasible Pathway Toward Power System Reform in Mexico

DOE Office of Scientific and Technical Information (OSTI.GOV)

Bracho, Riccardo; Linvill, Carl; Sedano, Richard

With the vision to transform the power sector, Mexico included in the new laws and regulations deployment of smart grid technologies and provided various attributes to the Ministry of Energy and the Energy Regulatory Commission to enact public policies and regulation. The use of smart grid technologies can have a significant impact on the integration of variable renewable energy resources while maintaining reliability and stability of the system, significantly reducing technical and non-technical electricity losses in the grid, improving cyber security, and allowing consumers to make distributed generation and demand response decisions. This report describes for Mexico's Ministry of Energymore » (SENER) an overall approach (Optimal Feasible Pathway) for moving forward with smart grid policy development in Mexico to enable increasing electric generation from renewable energy in a way that optimizes system stability and reliability in an efficient and cost-effective manner.« less

Proton Exchange Membrane Fuel Cells for Electrical Power Generation On-Board Commercial Airplanes

DOE Office of Scientific and Technical Information (OSTI.GOV)

Pratt, Joesph W.; Klebanoff, Leonard E.; Munoz-Ramos, Karina

2011-05-01

Deployed on a commercial airplane, proton exchange membrane fuel cells may offer emissions reductions, thermal efficiency gains, and enable locating the power near the point of use. This work seeks to understand whether on-board fuel cell systems are technically feasible, and, if so, if they offer a performance advantage for the airplane as a whole. Through hardware analysis and thermodynamic and electrical simulation, we found that while adding a fuel cell system using today’s technology for the PEM fuel cell and hydrogen storage is technically feasible, it will not likely give the airplane a performance benefit. However, when we re-didmore » the analysis using DOE-target technology for the PEM fuel cell and hydrogen storage, we found that the fuel cell system would provide a performance benefit to the airplane (i.e., it can save the airplane some fuel), depending on the way it is configured.« less

Proton exchange membrane fuel cells for electrical power generation on-board commercial airplanes.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Curgus, Dita Brigitte; Munoz-Ramos, Karina; Pratt, Joseph William

2011-05-01

Deployed on a commercial airplane, proton exchange membrane fuel cells may offer emissions reductions, thermal efficiency gains, and enable locating the power near the point of use. This work seeks to understand whether on-board fuel cell systems are technically feasible, and, if so, if they offer a performance advantage for the airplane as a whole. Through hardware analysis and thermodynamic and electrical simulation, we found that while adding a fuel cell system using today's technology for the PEM fuel cell and hydrogen storage is technically feasible, it will not likely give the airplane a performance benefit. However, when we re-didmore » the analysis using DOE-target technology for the PEM fuel cell and hydrogen storage, we found that the fuel cell system would provide a performance benefit to the airplane (i.e., it can save the airplane some fuel), depending on the way it is configured.« less

Use of a single bipolar electrode in the posterior arytenoid muscles for bilateral monitoring of the recurrent laryngeal nerves in thyroid surgery.

PubMed

Haerle, Stephan; Sidler, D; Linder, Th; Mueller, W

2008-12-01

The aims were to assess the technical feasibility of using a single electrode in the posterior arytenoid muscles (PAM) for intraoperative monitoring of the recurrent laryngeal nerve (RLN) in thyroid surgery, to validate the new method against the insertion of electrodes placed in the vocal cord muscle, and to report the results of the clinical application of the new concept. A total of 52 patients were enrolled. The handling and safety of RLN monitoring was tested by simultaneous registration of the EMG response from vocal fold electrodes and PAM electrodes. Acoustically and electromyographically we found nearly the same values for the arytenoid muscles as for the vocal folds, although the signals taken from the vocal folds were slightly stronger. PAM recording using a single bipolar electrode is technically feasible and as reliable compared to the standard vocal cord monitoring.

Technical, economic, and environmental impact study of converting Uzbekistan transportation fleets to natural gas operation. Export trade information

DOE Office of Scientific and Technical Information (OSTI.GOV)

NONE

1997-04-30

This study, conducted by Radian International, was funded by the U.S. Trade and Development Agency. The report assesses the feasibility (technical, economic and environmental) of converting the Uzbek transportation fleets to natural gas operation. The study focuses on the conversion of high fuel use vehicles and locomotives to liquefied natural gas (LNG) and the conversion of moderate fuel use veicles to compressed natural gas (CNG). The report is divided into the following sections: Executive Summary; (1.0) Introduction; (2.0) Country Background; (3.0) Characterization of Uzbek Transportation Fuels; (4.0) Uzbek Vehicle and Locomotive Fleet Characterization; (5.0) Uzbek Natural Gas Vehicle Conversion Shops;more » (6.0) Uzbek Natural Gas Infrastructure; (7.0) Liquefied Natural Gas (LNG) for Vehicular Fuel in Uzbekistan; (8.0) Economic Feasibility Study; (9.0) Environmental Impact Analysis; References; Appendices A - S.« less

The Oman-India gas pipeline

DOE Office of Scientific and Technical Information (OSTI.GOV)

Roberts, P.M.

1995-12-31

In March 1993, the Governments of the Sultanate of Oman and India executed a Memorandum of Understanding for a long term Gas Supply Contract to transport natural gas from Oman to India by pipeline. A feasibility study was undertaken to determine if such a pipeline was technically achievable and economically attractive. Work was initiated with a consortium of internationally recognized major design and construction firms, as well as with consultants knowledgeable in gas supply and demand in the region. Alternative gas supply volumes as well as two distinct pipeline routes were analyzed in significant detail. As a result of thismore » work, it was concluded that a pipeline crossing, taking a direct route from Oman to India, is economically and technically feasible. In September, 1994, the Agreement on Principal Terms for supply of gas to India from Oman was agreed by the respective governmental authorities. The project and its status are described.« less

Multicriteria Analysis model for the comparison of different rockfalls protection devices

NASA Astrophysics Data System (ADS)

Mignelli, C.; Pomarico, S.; Peila, D.

2012-04-01

In mountain regions roads and railways as well as urbanized areas, can often be endangered by rockfalls and need to be protected against the impact of falling blocks. The effects of rockfall events can be the damage of road, vehicles, injuries or death of drivers or passengers and economic loss due to road closure. The cost of a single car accident can be significant since it can involve the hospitalization of the driver and passengers, the repair of the vehicle, the legal costs and compensation. The public administrations must manage the roads in order to protect the areas at risk and therefore make choices that take into account both technical and social aspects. The fulfillment of safety requirements for routes in mountainside areas is therefore a multidimensional concept that includes socio-economic, environmental, technical and ethical perspectives and thus leads to issue that are characterized simultaneously by a high degree of conflict, complexity and uncertainty. Multicriteria Analysis (MCA) is an adequate approach that can deal with these kind of issues. It behaves as an umbrella term since it includes a large series of evaluation techniques able to take into explicit consideration simultaneously several criteria, in order to support the Decision Maker through a rational approach to make a comparative assessment of alternative projects. A very large and consolidated amount of MCA literature exists, in which it is possible to find a wide range of techniques and application fields such as waste management, transport infrastructures, strategic policy planning, environmental impact assessment of territorial transformations, market and logistics, economics and finance, industrial management and civil engineering. This paper address the problem of rockfall risk induced on a road using the Analytic Hierarchy Process (AHP), a Multicriteria Analysis technique suitable for dealing with complex problems related to making a choice from among several alternatives and which provides a comparison of the considered options. The developed model takes into account five different aspects of the decision-making process (economic, environmental, design, transport and social aspects) that have been organized according the hierarchical framework of the AHP technique. The criteria that were identified in the analysis and their weights, in the decision-making process, have been discussed and determined by means of specific focus groups with technical experts in the geo-engineering field. Three different protection devices, usually used for rockfall protection (embankment, shelter topped by rockfall barrier and tunnel), are compared through the AHP method, in a specific "geo" environment to show the feasibility of the method. The application of the AHP technique, which was performed using the Expert Choice software, allowed the most relevant aspects of the decision-making process to be highlighted and showing how the proposed method can be a valuable tool for public administration. Furthermore, in order to test the robustness of the proposed model a sensitivity analysis was carried out. The research has an originality value since it focuses on a participative methodological approach thus making the decision process more traceable and reliable.

Substitution potentials of recycled HDPE and wood particles from post-consumer packaging waste in Wood-Plastic Composites.

PubMed

Sommerhuber, Philipp F; Welling, Johannes; Krause, Andreas

2015-12-01

The market share of Wood-Plastic Composites (WPC) is small but expected to grow sharply in Europe. This raises some concerns about suitable wood particles needed in the wood-based panels industry in Europe. Concerns are stimulated by the competition between the promotion of wooden products through the European Bioeconomy Strategy and wood as an energy carrier through the Renewable Energy Directive. Cascade use of resources and valorisation of waste are potential strategies to overcome resource scarcity. Under experimental design conditions, WPC made from post-consumer recycled wood and plastic (HDPE) were compared to WPC made from virgin resources. Wood content in the polymer matrix was raised in two steps from 0% to 30% and 60%. Mechanical and physical properties and colour differences were characterized. The feasibility of using cascaded resources for WPC is discussed. Results indicate the technical and economic feasibility of using recycled HDPE from packaging waste for WPC. Based on technical properties, 30% recycled wood content for WPC is feasible, but economic and political barriers of efficient cascading of biomass need to be overcome. Copyright © 2015 Elsevier Ltd. All rights reserved.

Joint distraction for thumb carpometacarpal osteoarthritis: a feasibility study with 1-year follow-up.

PubMed

Spaans, Anne J; Minnen, L Paul van; Braakenburg, Assa; Mink van der Molen, Aebele B

2017-08-01

The purpose of this pilot study was to evaluate the feasibility of joint distraction of the first carpometacarpal (CMC1) joint in patients with CMC1 osteoarthritis (OA). An external joint distractor was placed over the CMC1 joint by K-wire fixation in the trapezium and the metacarpal. The joint was distracted 3 mm during surgery. The device was then kept in place for 8 weeks. Disabilities of the Arm, Shoulder, and Hand (DASH) score, Michigan Hand Outcome Questionnaire (MHQ), Visual Analogue Scale (VAS), and grip strength were recorded preoperatively and at set postoperative intervals. Five female patients with an average age of 53 years (range = 41-61) were included. One year postoperatively, average DASH, MHQ, and VAS scores improved compared to preoperative values; DASH 53 to 27, MHQ 48 to 76, and VAS pain 48 to 14. There were no technical problems associated with the device. One patient had a local pin site infection treated successfully with oral antibiotics. This study concludes that joint distraction of the osteoarthritic CMC1 joint is technically feasible. In this small, prospective pilot study the majority of the results were favourable during short-term follow-up.

User testing and stakeholder feedback contributed to the development of understandable and useful Summary of Findings tables for Cochrane reviews.

PubMed

Rosenbaum, Sarah E; Glenton, Claire; Nylund, Hilde Kari; Oxman, Andrew D

2010-06-01

To develop a Summary of Findings (SoF) table for use in Cochrane reviews that is understandable and useful for health professionals, acceptable to Cochrane Collaboration stakeholders, and feasible to implement. We gathered stakeholder feedback on the format and content of an SoF table from an advisory group of more than 50 participants and their constituencies through e-mail consultations. We conducted user tests using a think-aloud protocol method, collecting feedback from 21 health professionals and researchers in Norway and the UK. We analyzed the feedback, defined problem areas, and generated new solutions in brainstorming workshops. Stakeholders were concerned about precision in the data representation and about production feasibility. User testing revealed unexpected comprehension problems, mainly confusion about what the different numbers referred to (class reference). Resolving the tension between achieving table precision and table simplicity became the main focus of the working group. User testing led to a table more useful and understandable for clinical audiences. We arrived at an SoF table that was acceptable to the stakeholders and in principle feasible to implement technically. Some challenges remain, including presenting continuous outcomes and technical/editorial implementation.

Fluidized bed gasification of industrial solid recovered fuels.

PubMed

Arena, Umberto; Di Gregorio, Fabrizio

2016-04-01

The study evaluates the technical feasibility of the fluidized bed gasification of three solid recovered fuels (SRFs), obtained as co-products of a recycling process. The SRFs were pelletized and fed to a pilot scale bubbling fluidized bed reactor, operated in gasification and co-gasification mode. The tests were carried out under conditions of thermal and chemical steady state, with a bed of olivine particles and at different values of equivalence ratio. The results provide a complete syngas characterization, in terms of its heating value and composition (including tars, particulates, and acid/basic pollutants) and of the chemical and physical characterization of bed material and entrained fines collected at the cyclone outlet. The feasibility of the fluidized bed gasification process of the different SRFs was evaluated with the support of a material and substance flow analysis, and a feedstock energy analysis. The results confirm the flexibility of fluidized bed reactor, which makes it one of the preferable technologies for the gasification of different kind of wastes, even in co-gasification mode. The fluidized bed gasification process of the tested SRFs appears technically feasible, yielding a syngas of valuable quality for energy applications in an appropriate plant configuration. Copyright © 2016 Elsevier Ltd. All rights reserved.

Thermal springs of Malaysia and their potentialdevelopment

NASA Astrophysics Data System (ADS)

Rahim Samsudin, Abdul; Hamzah, Umar; Rahman, Rakmi Ab.; Siwar, Chamhuri; Fauzi Mohd. Jani, Mohd; Othman, Redzuan

The study on the potential development of hot springs for the tourism industry in Malaysiawas conducted. Out of the 40 hot springs covered, the study identified 9 hot springs having a high potential for development, 14 having medium potential and the remaining 17 having low or least potential for development. This conclusion was arrived at after considering the technical and economic feasibility of the various hot springs. Technical feasibility criteria includes geological factors, water quality, temperature and flow rate. The economic feasibility criteria considers measures such as accessibility, current and market potentials in terms of visitors, surrounding attractions and existing inventory and facilities available. A geological input indicates that high potential hot springs are located close to or within the granite body and associated with major permeable fault zones. They normally occur at low elevation adjacent to topographic highs. High potential hot springs are also characterised by high water temperature, substantial flowrate and very good water quality which is important for water-body contact activities such as soaking. Economic criteria for high potential hot springs are associated with good accessibility, good market, good surrounding attractions like rural and village setting and well developed facilities and infrastructures.

Use of Self-Expanding Stents for the Treatment of Vertebral Artery Ostial Stenosis: a Single Center Experience

PubMed Central

Chung, Sun Young; Choi, Jin Woo; Choi, Byung Se; In, Hyun Sin; Kim, Sun Mi; Choi, Choong Gon; Kim, Sang Joon; Suh, Dae Chul

2010-01-01

Objective To evaluate our early experience using self-expanding stents to treat atherosclerotic vertebral artery ostial stenosis (VAOS), with respect to technical feasibility and clinical and imaging follow-up results. Materials and Methods A total of 20 lesions in 20 patients underwent stenting of the VAOS using a self-expanding stent (Precise RX; Cordis Neurovascular, Miami Lakes, FL). Two patients were asymptomatic. We analyzed the technical success rate, causes of technical failure, occurrence of any vascular or neurological event, and the occurrence of any neurological abnormality or in-stent restenosis (ISR) seen on follow-up. The imaging follow-up was performed with Doppler ultrasound (DUS) as a primary screening modality. Results One instance of technical failure was caused by failure of the guidewire passage. The stent diameter was 5 mm, and post-stenting balloon dilatations were necessary in all cases. Stent misplacement requiring placement of an additional stent occurred in four cases. Following a 14.8 month average clinical follow-up time, two patients showed anterior circulation ischemia, which was not attributed to the VAOS we treated. Following a 13.7 month average DUS follow-up, five patients showed a mild degree of diffuse or focal intimal thickening in the stent lumen; however, none of the stenosis showed luminal loss of more than 50% and no stent fracture was noted. Conclusion The use of self-expanding stents for treating VAOS was technically feasible and helped to improve artery patency during our limited follow-up interval. PMID:20191062

Streamlining Software Aspects of Certification: Report on the SSAC Survey

NASA Technical Reports Server (NTRS)

Hayhurst, Kelly J.; Dorsey, Cheryl A.; Knight, John C.; Leveson, Nancy G.; McCormick, G. Frank

1999-01-01

The aviation system now depends on information technology more than ever before to ensure safety and efficiency. To address concerns about the efficacy of software aspects of the certification process, the Federal Aviation Administration (FAA) began the Streamlining Software Aspects of Certification (SSAC) program. The SSAC technical team was commissioned to gather data, analyze results, and propose recommendations to maximize efficiency and minimize cost and delay, without compromising safety. The technical team conducted two public workshops to identify and prioritize software approval issues, and conducted a survey to validate the most urgent of those issues. The SSAC survey, containing over two hundred questions about the FAA's software approval process, reached over four hundred industry software developers, aircraft manufacturers, and FAA designated engineering representatives. Three hundred people responded. This report presents the SSAC program rationale, survey process, preliminary findings, and recommendations.

Transseptal antegrade transcatheter aortic valve replacement for patients with no other access approach - a contemporary experience.

PubMed

Cohen, Mauricio G; Singh, Vikas; Martinez, Claudia A; O'Neill, Brian P; Alfonso, Carlos E; Martinezclark, Pedro O; Heldman, Alan W; O'Neill, William W

2013-11-15

To assess the feasibility and outcomes in patients undergoing transvenous transseptal (TS) transcatheter aortic valve replacement (TAVR). TS approach for TAVR was abandoned in favor of retrograde transfemoral, transaortic, or transapical approaches. TS TAVR may still be warranted in patients for whom no other approach is feasible. Observational consecutive case series at a single center, to evaluate technical outcomes in inoperable patients with aortic stenosis who had contraindications for other approaches and who underwent TAVR via a transvenous TS antegrade approach using the Edwards-Sapien (ES) valve. Over a 4-month period, 9 patients underwent TS TAVR with 26 mm (n = 4) and 23 mm (n = 5) ES valves. Mean age was 84.5 ± 6.6 years and Society of Thoracic Surgeons predicted risk of mortality was 7.8 ± 2.8%. Specific contraindications for other access included iliofemoral arterial diameter <7 mm in 9 (100%), porcelain aorta in 6 (66%) patients, multiple (≥2) sternotomies in 2 (22%) patients, severe pulmonary disease in 3 (33%), extreme frailty in 1 (11%), spinal stenosis with impaired ability to rehabilitate postsurgery in 1 (11%) and apical left ventricular thrombus in 1 (11%) patient. Antegrade deployment of the ES prosthetic valve was technically feasible in 8 patients. Major bleeding occurred in 4 patients, two patients suffered acute kidney injury without need for dialysis and one patient required a permanent pacemaker. The median (25th, 75th percentiles) fluoroscopy time was 49 (34, 81) minutes and contrast volume was 150 (120, 225) ml. No patient had hemodynamically significant post-TAVR aortic insufficiency nor damage to the mitral valve. At 6 months follow-up, there were no cerebrovascular events or rehospitalizations and mean NYHA Class improved from 3.4 to 1.7. The antegrade TS approach to TAVR is a technically feasible option for "no-access" patients. Prospective assessment of the safety and efficacy of this approach in the current era warrants further study. Copyright © 2013 Wiley Periodicals, Inc.

Feasibility Study of a Novel Thoraco-abdominal Aortic Hybrid Device (SPIDER-graft) in a Translational Pig Model.

PubMed

Debus, Eike S; Kölbel, Tilo; Duprée, Anna; Daum, Günter; Sandhu, Harleen K; Manzoni, Daniel; Wipper, Sabine H

2018-02-01

The hybrid SPIDER-graft consists of a proximal descending aortic stent graft and a conventional six branched Dacron graft for open abdominal aortic repair. Technical feasibility with regard to avoiding thoracotomy and extracorporeal circulation (ECC) during thoraco-abdominal aortic hybrid repair and peri-procedural safety of this novel device are unknown. This was a feasibility and safety study in domestic pigs (75-85 kg). The abdominal aorta including iliac bifurcation, left renal artery, and visceral arteries were exposed via retroperitoneal access. The right iliac branch was first temporarily anastomosed end to side to the distal aorta via partial clamping. During inflow reduction and infra-coeliac cross-clamping, the coeliac trunk (CT) was divided and the proximal stent graft portion of the SPIDER-graft was deployed into the descending aorta via the CT ostium. Retrograde visceral and antegrade aorto-iliac blood flow was maintained via the iliac side branch. The visceral, renal, and iliac arteries were sequentially anastomosed, finally replacing the first iliac end to side anastomosis. Technical success, blood flow, periods of ischaemia, and peri-procedural complications were evaluated after intra-operative completion angiography and post-operative computed tomography angiography. Six animals underwent successful thoracic stent graft deployment and distal open reconstruction without peri-operative death. The median thoracic graft implantation time was 4.5 min, and the median ischaemia times before reperfusion were 10 min for the CT, 8 min for the superior mesenteric artery, 13 min for the right renal artery, and 22 min for the left renal artery. Angiography demonstrated appropriate graft implantation and blood flow measurements confirmed sufficient blood flow through all side branches. In this translational pig model, thoraco-abdominal hybrid repair using the novel SPIDER-graft was successful in avoiding thoracotomy and ECC. Technical feasibility and safety appear promising, but need to be reassessed in humans. Copyright © 2017. Published by Elsevier Ltd.

Haiti: Feasibility of Waste-to-Energy Options at the Trutier Waste Site

DOE Office of Scientific and Technical Information (OSTI.GOV)

Conrad, M. D.; Hunsberger, R.; Ness, J. E.

2014-08-01

This report provides further analysis of the feasibility of a waste-to-energy (WTE) facility in the area near Port-au-Prince, Haiti. NREL's previous analysis and reports identified anaerobic digestion (AD) as the optimal WTE technology at the facility. Building on the prior analyses, this report evaluates the conceptual financial and technical viability of implementing a combined waste management and electrical power production strategy by constructing a WTE facility at the existing Trutier waste site north of Port-au-Prince.

Feasibility study for underground coal gasification at the Krabi coal mine site, Thailand: Volume 1. Progress report, December 1--31, 1995; Export trade information

DOE Office of Scientific and Technical Information (OSTI.GOV)

Young, B.C.; Schmit, C.R.

The report, conducted by Energy and Environmental Research Center, was funded by the US Trade and Development Agency. The objective of this report was to determine the technical, environmental and economic feasibility of developing, demonstrating, and commercializing underground coal gasification (UCG) at the Krabi coal mine site in Southern Thailand. This is Volume 1, the Progress Report for the period December 1, 1995, through December 31, 1995.

Pascua Yaqui Tribe Renewable Energy Development and Deployment Feasibility Study

DOE Office of Scientific and Technical Information (OSTI.GOV)

Arvayo, Maria

In 2012, PYT was awarded a grant from the Department of Energy Tribal Energy Program to conduct a Renewable Energy Development and Deployment Feasibility Study that would define the technical and economic viability of renewable energy on tribal lands. Red Mountain Energy Partners (RMEP) was hired by PYT to complete the study. Through this study, Red Mountain concluded that there are viable opportunities for solar at Tortuga Ranch, the Casino del Sol and a third site near the Justice Center on Camino de Oeste.

Are health-based payments a feasible tool for addressing risk segmentation?

PubMed

Rogal, D L; Gauthier, A K

1998-01-01

As they attempt to increase health insurance coverage and improve the efficiency of the market, researchers, policymakers, and health plan representatives have been addressing the issue of risk segmentation. Many risk assessment tools and risk-adjusted payment methodologies have been developed and demonstrated for a variety of populations and payers experiencing various market constraints. The evidence shows that risk-adjusted payments are feasible for most populations receiving acute care, while technical obstacles, political issues, and some research gaps remain.

Nuclear medicine and imaging research. Quantitative studies in radiopharmaceutical science. Comprehensive progress report, January 1, 1983-June 30, 1985

DOE Office of Scientific and Technical Information (OSTI.GOV)

Beck, R.N.; Cooper, M.D.

1985-09-01

This comprehensive report outlines the progress made during the past three years in the areas described below. In all instances, initial studies have been carried out and the technical feasibility of carrying through each study has been demonstrated. The studies described include development of cesium-130 and bromine-75 radioisotope generators, the feasibility of using rubidium-82 as a myocardial imaging agent, and radiochemical preparation of C-11 deoxyglucose. 28 refs. (DT)

A Virtual Reality Framework to Optimize Design, Operation and Refueling of GEN-IV Reactors.

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rizwan-uddin; Nick Karancevic; Stefano Markidis

2008-04-23

many GEN-IV candidate designs are currently under investigation. Technical issues related to material, safety and economics are being addressed at research laboratories, industry and in academia. After safety, economic feasibility is likely to be the most important crterion in the success of GEN-IV design(s). Lessons learned from the designers and operators of GEN-II (and GEN-III) reactors must play a vital role in achieving both safety and economic feasibility goals.

Assessment of the NASA AvSTAR Project Plan

NASA Technical Reports Server (NTRS)

Ulrey, Michael L.; Haraldsdottir, Aslaug; Berge, Matthew E.; Hopperstad, Craig A.; Schwab, Robert W.

2004-01-01

This report is a preliminary evaluation of NASA's proposed Aviation System Technology Advanced Research (AvSTAR) Program during the early stages of its definition, in the first half of the year 2001. This evaluation focuses on how well the program goals address the needs of the U.S. National Airspace System, the technical feasibility of the program goals, and the logistical feasibility of the program plan. This report also provides recommendations on how the AvSTAR program could be strengthened and improved. This document has two appendices.

Proof of the Feasibility of Coherent and Incoherent Schemes for Pumping a Gamma-Ray Laser

DTIC Science & Technology

1988-07-01

DIP!; ilLE-CWPj AD-A 799 638 The University of Texas at DallasCenter for Quantlin, Electronics The Gamma-Ray Laser Project Quarterly Report April...AND INCOHERENT SCHEMES FOR PUMPING A GAMMA-RAY LASER Principal Investigator: Carl B. Collins The University of Texas at Dallas Center for Quantum...FEASIBILITY OF Quarterly Technical Progress COHERENT AND INCOHERENT SCHEMES /I/RR - 61WARA FOR PUMPING A GAMMA-RAY LASER 6.PERFORMINO ORG. REPORT NUMBER

The impact of nontechnical skills on technical performance in surgery: a systematic review.

PubMed

Hull, Louise; Arora, Sonal; Aggarwal, Rajesh; Darzi, Ara; Vincent, Charles; Sevdalis, Nick

2012-02-01

Failures in nontechnical and teamwork skills frequently lie at the heart of harm and near-misses in the operating room (OR). The purpose of this systematic review was to assess the impact of nontechnical skills on technical performance in surgery. MEDLINE, EMBASE, PsycINFO databases were searched, and 2,041 articles were identified. After limits were applied, 341 articles were retrieved for evaluation. Of these, 28 articles were accepted for this review. Data were extracted from the articles regarding sample population, study design and setting, measures of nontechnical skills and technical performance, study findings, and limitations. Of the 28 articles that met inclusion criteria, 21 articles assessed the impact of surgeons' nontechnical skills on their technical performance. The evidence suggests that receiving feedback and effectively coping with stressful events in the OR has a beneficial impact on certain aspects of technical performance. Conversely, increased levels of fatigue are associated with detriments to surgical skill. One article assessed the impact of anesthesiologists' nontechnical skills on anesthetic technical performance, finding a strong positive correlation between the 2 skill sets. Finally, 6 articles assessed the impact of multiple nontechnical skills of the entire OR team on surgical performance. A strong relationship between teamwork failure and technical error was empirically demonstrated in these studies. Evidence suggests that certain nontechnical aspects of performance can enhance or, if lacking, contribute to deterioration of surgeons' technical performance. The precise extent of this effect remains to be elucidated. Copyright © 2012 American College of Surgeons. Published by Elsevier Inc. All rights reserved.

Purse-string transoral outlet reduction (TORe) is effective at inducing weight loss and improvement in metabolic comorbidities after Roux-en-Y gastric bypass.

PubMed

Jirapinyo, Pichamol; Kröner, Paul T; Thompson, Christopher C

2018-04-01

BACKGROUND AND STUDY AIMS : Transoral outlet reduction (TORe), performed using a traditional interrupted or a recently described purse-string suture pattern, is effective at inducing short- and mid-term weight loss in patients with weight regain after Roux-en-Y gastric bypass (RYGB). We aimed to determine the technical feasibility and safety of purse-string TORe and to assess its impact on weight and metabolic profiles.  RYGB patients undergoing purse-string TORe were included. The gastrojejunal anastomosis (GJA) was ablated using argon plasma coagulation or dissected using endoscopic submucosal dissection. A suture was used to place stitches around the GJA in a continuous ring fashion. The suture was cinched over a balloon (8 - 12 mm). The primary outcome was technical feasibility. Secondary outcomes were the percentage of total body weight lost (%TWL), adverse events, impact on comorbidities, and predictors of weight loss.  252 RYGB patients underwent 260 purse-string TORes. They had regained 52.6 ± 46.4 % of lost weight and weighed 107.6 ± 24.6 kg. The technical success rate was 100 %. At 6 and 12 months, %TWL was 9.6 ± 6.3 and 8.4 ± 8.2. Two serious adverse events (0.8 %) occurred: gastrointestinal bleeding and GJA stenosis. At 12 months, blood pressure, hemoglobin A 1c , and ALT had improved. Prior weight regain was associated with %TWL at 12 months ( β  = 0.07, P  = 0.007) after controlling for BMI, pouch size, and number of purse-string rings.  Purse-string TORe to treat weight regain after RYGB is technically feasible and safe. Additionally, it is associated with improvement in weight and comorbidity profiles up to 12 months post-procedure. © Georg Thieme Verlag KG Stuttgart · New York.

Acute Stroke and Obstruction of the Extracranial Carotid Artery Combined with Intracranial Tandem Occlusion: Results of Interventional Revascularization

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lescher, Stephanie, E-mail: stephanie.lescher@kgu.de; Czeppan, Katja; Porto, Luciana

PurposeDue to high thrombus load, acute stroke patients with tandem obstructions of the extra- and intracranial carotid arteries or the middle cerebral artery show a very limited response to systemic thrombolysis. Interventional treatment with mechanical thrombectomy—often in combination with acute stenting of underlying atherosclerotic stenosis or dissection—is increasingly used. It has been shown that such complex interventions are technically feasible. The lack of optimal management strategies and clinical data encouraged us to review our acute stroke interventions in patient with anterior circulation tandem lesions to determine lesion patterns, interventional approaches, and angiographic or clinical outcomes.Patients and MethodsWe retrospectively analyzed amore » series of 39 consecutive patients with intracranial vessel occlusion of the anterior circulation simultaneously presenting with high-grade cervical internal carotid artery (ICA) stenosis or occlusion.ResultsEmergency ICA stent implantation was technically feasible in all patients, and intracranial recanalization with TICI ≥ 2b was reached in a large number of patients (64 %). Good clinical outcomes (mRS ≤ 2 at 3 months) were achieved in one third of the patients (36 %). Symptomatic hemorrhages occurred in four patients (10 %). Mortality was 10 %.ConclusionEndovascular recanalization of acute cervical carotid artery occlusion was technically feasible in all patients, and resulted in high extra- and intracranial revascularization rates. A trend for favorable clinical outcome was seen in a higher TICI score, younger age, good collateral status, and combined IV rTPA and endovascular therapy.« less

A Feasibility Study of Computer Assisted Instruction in US Army Basic Electronics Training. Final Report.

ERIC Educational Resources Information Center

International Business Machines Corp., Gaithersburg, MD. Federal Systems Div.

A study of computer-assisted instruction (CAI) for US Army basic electronics training at the US Army Signal Center and School establishes the feasibility of CAI as a training technique. Three aspects of CAI are considered: effectiveness, efficiency, and applicability of CAI to basic electronics training. The study explores the effectiveness of the…

Reusable Boosters in a European-Russian Perspective

NASA Astrophysics Data System (ADS)

Deneu, François; Ramiandrasoa, Fabienne

2002-01-01

In 2001, EADS and Khrunichev SRPSC have initiated and carried out a working group devoted to the analysis of potential common studies and developments in the field of space activities. This working group came up with several propositions of interest, among which, the use of reusable boosters issued from Khrunichev previous design appeared to be promising when applied to heavy type launchers. Although the results required to be confirmed by detailed studies prior to final conclusions, preliminary studies have shown the interest of Ariane 5 configurations using such reusable booster in view of reducing the specific and launch cost as well as potentially increasing the performance. In November 2001, EADS and KHRUNICHEV SRPSC have started a study on an Ariane 5 plus reusable boosters configuration. This study aims at obtaining a better understanding of the advantages and drawbacks attached to such a use. Technical feasibility is more in depth analysed, with all recurring and not recurring aspects (including launch infrastructure modifications). Programmatic aspects are also addressed in order to better assess potential economic advantages and unavoidable drawbacks. Beyond that the identification of what could be, for western Europe and Russian players, an efficient and pay- off industrial organisation, is also a study theme of importance. This papers intends to present the main results achieved within this study and the propositions for the future which are likely to provide western Europe and Russia with stronger positions in the competitive field of launch business.

An accountability server for health care information systems.

PubMed

Kowalski, S

1994-02-01

The paper starts off by first briefly discussing the necessary ethical, legal and administrative/management controls that are required before the mechanisms of accountability controls can be implemented in automated clinical patient record systems. After these social aspects are discussed the technical aspects of the ALS are outlined. The security concepts of the ECMA framework are reviewed and used to explain the technical design of the ALS. A walk-through of the server in a typical patient record transaction is used to explain the operations of the server. The paper concludes with a general discussion of the usefulness of accountability mechanisms in making security in health care information work in practice.

Nevada Applied Ecology Information Center: a review of technical information support provided to the Nevada Applied Ecology Group

DOE Office of Scientific and Technical Information (OSTI.GOV)

Fore, C.S.; Pfuderer, H.A.

The Nevada Applied Ecology Information Center (NAEIC) was established in January 1972 to serve the needs of the Nevada Applied Ecology Group (NAEG) by identifying, collecting, analyzing, and disseminating technical information relevant to NAEG programs. Since its inception, the NAEIC has been active in providing specialized information support to NAEG staff in the following research areas: (1) environmental aspects of the transuranics; (2) historic literature (pre-1962) on plutonium and uranium; (3) cleanup and treatment of radioactively contaminated land; (4) bioenvironmental aspects of europium and rhodium; (5) NAEG contractor reports; and (6) uptake of radioactivity by food crops.

Biomimetic bio-inspired biomorph sustainable? An attempt to classify and clarify biology-derived technical developments.

PubMed

Speck, Olga; Speck, David; Horn, Rafael; Gantner, Johannes; Sedlbauer, Klaus Peter

2017-01-24

Over the last few decades, the systematic approach of knowledge transfer from biological concept generators to technical applications has received increasing attention, particularly because marketable bio-derived developments are often described as sustainable. The objective of this paper is to rationalize and refine the discussion about bio-derived developments also with respect to sustainability by taking descriptive, normative and emotional aspects into consideration. In the framework of supervised learning, a dataset of 70 biology-derived and technology-derived developments characterised by 9 different attributes together with their respective values and assigned to one of 17 classes was created. On the basis of the dataset a decision tree was generated which can be used as a straightforward classification tool to identify biology-derived and technology-derived developments. The validation of the applied learning procedure achieved an average accuracy of 90.0%. Additional extraordinary qualities of technical applications are generally discussed by means of selected biology-derived and technology-derived examples with reference to normative (contribution to sustainability) and emotional aspects (aesthetics and symbolic character). In the context of a case study from the building sector, all aspects are critically discussed.

25 CFR 700.465 - Technical feasibility.

Code of Federal Regulations, 2010 CFR

2010-04-01

... construction, technology, or another engineering project, however, an application for a construction, technology or another engineering project shall: (a) Include sufficient information to determine the nature... construction, technology, or other engineering project prior to construction. The Commission shall review the...

25 CFR 700.465 - Technical feasibility.

Code of Federal Regulations, 2012 CFR

2012-04-01

... construction, technology, or another engineering project, however, an application for a construction, technology or another engineering project shall: (a) Include sufficient information to determine the nature... construction, technology, or other engineering project prior to construction. The Commission shall review the...

25 CFR 700.465 - Technical feasibility.

Code of Federal Regulations, 2014 CFR

2014-04-01

... construction, technology, or another engineering project, however, an application for a construction, technology or another engineering project shall: (a) Include sufficient information to determine the nature... construction, technology, or other engineering project prior to construction. The Commission shall review the...

25 CFR 700.465 - Technical feasibility.

Code of Federal Regulations, 2011 CFR

2011-04-01

... construction, technology, or another engineering project, however, an application for a construction, technology or another engineering project shall: (a) Include sufficient information to determine the nature... construction, technology, or other engineering project prior to construction. The Commission shall review the...

25 CFR 700.465 - Technical feasibility.

Code of Federal Regulations, 2013 CFR

2013-04-01

... construction, technology, or another engineering project, however, an application for a construction, technology or another engineering project shall: (a) Include sufficient information to determine the nature... construction, technology, or other engineering project prior to construction. The Commission shall review the...

Magneto-optic imaging inspection of selected corrosion specimens : technical note

DOT National Transportation Integrated Search

1992-06-21

A feasibility demonstration was conducted at the facilities of Physical Research Instrumentation Company, (RI) in Redmond, Washington. The purpose of the demonstration was to compare the effectiveness of the PRI Model 301-1 magneto-optic imaging (MOI...

Feasibility study for detection and quantification of corrosion in bridge barrier rails.

DOT National Transportation Integrated Search

2013-04-01

Technical challenges exist with infrastructure that can be addressed by nondestructive evaluation (NDE) methods, such as detecting corrosion damage to reinforcing steel that anchor concrete bridge railings to bridge road decks. Moisture and chloride ...

Application of dynamic traffic assignment to advanced managed lane modeling : [technical summary].

DOT National Transportation Integrated Search

2013-11-01

Transportation agencies realize that, often, adding : lanes is not a feasible or effective solution for : increases in traffic congestion. So, agencies have : applied advanced strategies to better use existing : capacity. One such strategy, managed l...

Prevention of Roller Bearing-Initiated Burnoffs in Railroad Freight Car Journals

DOT National Transportation Integrated Search

1979-01-01

The objective of this program was to determine the technical feasibility and cost effectiveness of constructing three separate devices for the prevention of catastrophic roller bearing-initiated, railroad journal failure. 1. Construction of a low cos...

Nuclear waste disposal in space

NASA Technical Reports Server (NTRS)

Burns, R. E.; Causey, W. E.; Galloway, W. E.; Nelson, R. W.

1978-01-01

Work on nuclear waste disposal in space conducted by the George C. Marshall Space Flight Center, National Aeronautics and Space Administration, and contractors are reported. From the aggregate studies, it is concluded that space disposal of nuclear waste is technically feasible.

Phase A design study of microgravity fluoride fiber puller

NASA Technical Reports Server (NTRS)

Workman, Gary L.; Smith, Guy A.; Kosten, Susan

1994-01-01

Improved transmission properties for fluoride fibers due to space processing has great potential for commercial benefits. Phase A design study will determine conceptual feasibility and provide initial definition of the technical requirements and design issues for space.

Northern goshawk inventory and monitoring technical guide

Treesearch

B. Woodbridge; C.D. Hargis

2006-01-01

This technical guide provides information on all aspects of inventory and monitoring related to the northern goshawk (Accipiter gentilis) and is to be used by the U.S. Department of Agriculture (USDA) Forest Service consistent with national direction, local priorities, and available funding, and also by interested partners and collaborators. When the protocols...

Increasing Student Achievement: Educators' Guide to Secondary Career & Technical Education Assessment

ERIC Educational Resources Information Center

National Occupational Competency Testing Institute, 2012

2012-01-01

This guide attempts to address an aspect of secondary CTE (Career and Technical Education) that has received little attention; the assessment literacy of educators. School leaders need to go beyond ensuring routine compliance with external and internal regulatory forces to identify ways in which CTE program teachers might better understand…

Potential for cogeneration of heat and electricity in California industry, phase 1

NASA Technical Reports Server (NTRS)

Davis, H. S.; Gurfield, R. M.; Moretti, V. C.; Slonski, M. L.

1978-01-01

Information collected during an industrial survey of 12 selected plants was organized into four categories: technical, economic, environmental, and institutional. The technical aspects of industrial cogeneration are examined on a site-specific basis. The site-specific economics, environmental constraints, and institutional barriers that impact industrial cogeneration will be further investigated.

United States Air Force Training Line Simulator. Final Report.

ERIC Educational Resources Information Center

Nauta, Franz; Pierce, Michael B.

This report describes the technical aspects and potential applications of a computer-based model simulating the flow of airmen through basic training and entry-level technical training. The objective of the simulation is to assess the impacts of alternative recruit classification and training policies under a wide variety of assumptions regarding…

Posters with an artistic flair.

PubMed

Ellerbee, Susan M

2006-01-01

Posters are a popular medium used in the classroom and at conferences. Most published and Internet resources focus on the technical aspects of poster creation. The artist's perspective has rarely been addressed. The author fills that gap by presenting color theory and a balanced appearance as important elements to be considered. Specific technical and artistic considerations are presented.

So You "Gotta" Wear Glasses Minicourse, Career Oriented Pre-Technical Physics.

ERIC Educational Resources Information Center

Dallas Independent School District, TX.

This instructional guide, intended for student use, develops the topic of optics through a series of sequential activities. A technical development of the subject is pursued with examples stressing practical aspects of the concepts. Included in the minicourse are: (1) the rationale, (2) terminal behavioral objectives, (3) enabling behavioral…

The Doctoral Thesis and Supervision: The Student Perspective

ERIC Educational Resources Information Center

Kiguwa, Peace; Langa, Malose

2009-01-01

The doctoral thesis constitutes both a negotiation of the supervision relationship as well as mastery and skill in participating in a specific community of practice. Two models of supervision are discussed: the technical rationality model with its emphasis on technical aspects of supervision, and the negotiated order model with an emphasis on…

Final Technical Report on the Institute for Advanced Study in Student Personnel Work.

ERIC Educational Resources Information Center

Callis, Robert

This document reports the planning, implementation, and evaluation of a 9-month institute held at the University of Missouri-Columbia to prepare participants (approximately 20) for leadership positions in student personnel work at junior colleges and technical institutes. The following aspects of the instructional program are discussed and…

Demonstration and Research Program for Teaching Young String Players. Final Report.

ERIC Educational Resources Information Center

Yarborough, William

This report explains a system for rapidly training beginning students in the technical aspects of playing a stringed instrument. The program also affords them a well-rounded, basic knowledge of music. A "numerical" method of notation and concentrated muscular exercises greatly speeded the technical learning process. The daily coordination of ear…

Design and Assessment of an Associate Degree-Level Plant Operations Technical Education Program

ERIC Educational Resources Information Center

Selwitz, Jason Lawrence

2017-01-01

Research was undertaken to develop and evaluate an associate degree-level technical education program in Plant Operations oriented towards training students in applied science, technology, engineering, and mathematics (STEM) skills and knowledge relevant to a spectrum of processing industries. This work focuses on four aspects of the curriculum…

Construction of a Digital Video Library: A Socio-Technical Pilot Study on College Students' Attitudes

ERIC Educational Resources Information Center

Chen, Hsin-Liang; Choi, Gilok

2005-01-01

This study investigates socio-technical aspects of digital video libraries based on college students' learning experiences and perspectives. Forty-one students in biology classes were studied through a survey and individual interviews. Findings are presented by the students' knowledge of computer technology, experiences with AV materials, and…

Final report on technical work accomplished under contract NASw-2953

NASA Technical Reports Server (NTRS)

Fredricks, R. W.

1977-01-01

A report is given on the technical work accomplished in the area of plasma physics. The subjects covered are: (1) oblique whistler instabilities, (2) current-limited electron beam injection, (3) three-dimensional ion sound turbulence, (4) theoretical aspects of sounder antenna operation and (5) whistler modes in bow shock structures.

Lenguaje y Ciencias (Language and Sciences), Vol. 17, No. 2.

ERIC Educational Resources Information Center

Zierer, Ernesto, Ed.

This issue contains three articles in Spanish, with abstracts in English, dealing with the following topics: (1) technical and scientific language; (2) some types of misrenderings by students in translating from English to Spanish and implications for language instruction; and (3) some theoretical aspects of the formation of technical terms in…