The Effects of a Branch Campus

ERIC Educational Resources Information Center

Lien, Donald; Wang, Yaqin

2012-01-01

We examine the effects of a branch campus on the social welfare of the host country and the foreign university. Overall, we find that a branch campus increases both the domestic social welfare (measured by the aggregate student utility) and the tuition revenue of the foreign university. The effect of a branch campus on the brain drain is…

Shared virtual environments for aerospace training

NASA Technical Reports Server (NTRS)

Loftin, R. Bowen; Voss, Mark

1994-01-01

Virtual environments have the potential to significantly enhance the training of NASA astronauts and ground-based personnel for a variety of activities. A critical requirement is the need to share virtual environments, in real or near real time, between remote sites. It has been hypothesized that the training of international astronaut crews could be done more cheaply and effectively by utilizing such shared virtual environments in the early stages of mission preparation. The Software Technology Branch at NASA's Johnson Space Center has developed the capability for multiple users to simultaneously share the same virtual environment. Each user generates the graphics needed to create the virtual environment. All changes of object position and state are communicated to all users so that each virtual environment maintains its 'currency.' Examples of these shared environments will be discussed and plans for the utilization of the Department of Defense's Distributed Interactive Simulation (DIS) protocols for shared virtual environments will be presented. Finally, the impact of this technology on training and education in general will be explored.

Counter Tunnel Project

DTIC Science & Technology

2014-03-01

ADMINISTRATIVE INFORMATION The work described in this report was performed by the Unmanned Systems Science & Technology Branch (Code 71710) and the...Unmanned Systems Advanced Development Branch (Code 71720), Space and Naval Warfare Systems Center Pacific (SSC Pacific), San Diego, CA, and the Air...Earth™ is a trademark of Google Inc. Released by T. Pastore, Head Unmanned Systems Science & Technology Branch Under authority of A. D

New paradoxes of risky decision making.

PubMed

Birnbaum, Michael H

2008-04-01

During the last 25 years, prospect theory and its successor, cumulative prospect theory, replaced expected utility as the dominant descriptive theories of risky decision making. Although these models account for the original Allais paradoxes, 11 new paradoxes show where prospect theories lead to self-contradiction or systematic false predictions. The new findings are consistent with and, in several cases, were predicted in advance by simple "configural weight" models in which probability-consequence branches are weighted by a function that depends on branch probability and ranks of consequences on discrete branches. Although they have some similarities to later models called "rank-dependent utility," configural weight models do not satisfy coalescing, the assumption that branches leading to the same consequence can be combined by adding their probabilities. Nor do they satisfy cancellation, the "independence" assumption that branches common to both alternatives can be removed. The transfer of attention exchange model, with parameters estimated from previous data, correctly predicts results with all 11 new paradoxes. Apparently, people do not frame choices as prospects but, instead, as trees with branches.

METAL FORMING (INDUSTRIAL MULTIMEDIA BRANCH, SUSTAINABLE TECHNOLOGY DIVISION, NRMRL)

EPA Science Inventory

The Industrial Multimedia Branch's research program in metal products manufacturing was developed to identify environmental problems and deliver solutions for environmental improvements based on sustainable technology to the industry. There are over 35,000 manufacturing establish...

Enzyme-triggered compound release using functionalized antimicrobial peptide derivatives† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c6sc04435b Click here for additional data file.

PubMed Central

Kashibe, Masayoshi; Matsumoto, Kengo; Hori, Yuichiro

2017-01-01

Controlled release is one of the key technologies for medical innovation, and many stimulus-responsive nanocarriers have been developed to utilize this technology. Enzyme activity is one of the most useful stimuli, because many enzymes are specifically activated in diseased tissues. However, controlled release stimulated by enzyme activity has not been frequently reported. One of the reasons for this is the lack of versatility of carriers. Most of the reported stimulus-responsive systems involve a sophisticated design and a complicated process for the synthesis of stimulus-responsive nanocarrier components. The purpose of this study was to develop versatile controlled release systems triggered by various stimuli, including enzyme activity, without modifying the nanocarrier components. We developed two controlled release systems, both of which comprised a liposome as the nanocarrier and a membrane-damaging peptide, temporin L (TL), and its derivatives as the release-controllers. One system utilized branched peptides for proteases, and the other utilized phosphopeptides for phosphatases. In our systems, the target enzymes converted the non-membrane-damaging TL derivatives into membrane-damaging peptides and released the liposome inclusion. We demonstrated the use of our antimicrobial peptide-based controlled release systems for different enzymes and showed the promise of this technology as a novel theranostic tool. PMID:28451373

PUBLICATIONS (AIR POLLUTION TECHNOLOGY BRANCH, AIR POLLUTION PREVENTION AND CONTROL DIVISION, NRMRL)

EPA Science Inventory

The Air Pollution Technology Branch (APTB) of NRMRL's Air Pollution Prevention and Control Division produces and publishes highly specialized technical and scientific documents related to APTB's research. Areas of research covered include artificial intelligence, CFC destruction,...

Generalized and synthetic regression estimators for randomized branch sampling

Treesearch

David L. R. Affleck; Timothy G. Gregoire

2015-01-01

In felled-tree studies, ratio and regression estimators are commonly used to convert more readily measured branch characteristics to dry crown mass estimates. In some cases, data from multiple trees are pooled to form these estimates. This research evaluates the utility of both tactics in the estimation of crown biomass following randomized branch sampling (...

Solid State Technology Branch of NASA Lewis Research Center

NASA Technical Reports Server (NTRS)

1992-01-01

A collection of papers written by the members of the Solid State Technology Branch of NASA LeRC from Jun. 1991 - Jun. 1992 is presented. A range of topics relating to superconductivity, Monolithic Microwave Circuits (MMIC's), coplanar waveguides, and material characterization is covered.

Contingency Planning for Planetary Rovers

NASA Technical Reports Server (NTRS)

Dearden, Richard; Meuleau, Nicolas; Ramakrishnan, Sailesh; Smith, David; Washington, Rich; Clancy, Daniel (Technical Monitor)

2002-01-01

There has been considerable work in AI on planning under uncertainty. But this work generally assumes an extremely simple model of action that does not consider continuous time and resources. These assumptions are not reasonable for a Mars rover, which must cope with uncertainty about the duration of tasks, the power required, the data storage necessary, along with its position and orientation. In this paper, we outline an approach to generating contingency plans when the sources of uncertainty involve continuous quantities such as time and resources. The approach involves first constructing a "seed" plan, and then incrementally adding contingent branches to this plan in order to improve utility. The challenge is to figure out the best places to insert contingency branches. This requires an estimate of how much utility could be gained by building a contingent branch at any given place in the seed plan. Computing this utility exactly is intractable, but we outline an approximation method that back propagates utility distributions through a graph structure similar to that of a plan graph.

Incremental Contingency Planning

NASA Technical Reports Server (NTRS)

Dearden, Richard; Meuleau, Nicolas; Ramakrishnan, Sailesh; Smith, David E.; Washington, Rich

2003-01-01

There has been considerable work in AI on planning under uncertainty. However, this work generally assumes an extremely simple model of action that does not consider continuous time and resources. These assumptions are not reasonable for a Mars rover, which must cope with uncertainty about the duration of tasks, the energy required, the data storage necessary, and its current position and orientation. In this paper, we outline an approach to generating contingency plans when the sources of uncertainty involve continuous quantities such as time and resources. The approach involves first constructing a "seed" plan, and then incrementally adding contingent branches to this plan in order to improve utility. The challenge is to figure out the best places to insert contingency branches. This requires an estimate of how much utility could be gained by building a contingent branch at any given place in the seed plan. Computing this utility exactly is intractable, but we outline an approximation method that back propagates utility distributions through a graph structure similar to that of a plan graph.

Utility of nerve conduction studies for diagnosis of injury to the medial branch of the superficial radial nerve.

PubMed

Kon, Tomoya; Suzuki, Chieko; Hotta, Ryotaro; Funamizu, Yukihisa; Haga, Rie; Ueno, Tatsuya; Nishijima, Haruo; Arai, Akira; Nunomura, Jinichi; Nukada, Hitoshi; Tomiyama, Masahiko; Baba, Masayuki

2017-09-01

The clinical utility of nerve conduction study (NCS) for the distal medial branch of the superficial radial nerve (SRN) has not yet been clarified. Therefore, we investigated the clinical utility of NCS in patients with suspected SRN injury and compared the results with those in healthy control subjects. Bilateral NCS of the medial branch of the SRN was performed in two patients with suspected injury of the medial branch of the SRN, and in 20 healthy control subjects. A surface recording electrode was placed at the medial side of the metacarpophalangeal joint of the thumb. The SRN was then stimulated at a location 12 cm proximal from the recording electrode. The mean sensory nerve action potential in the two patients was significantly lower than that of the controls (6.75 ± 0.92 vs. 23.8 ± 8.2 μV, P  < 0.05). The side-to-side differences in sensory nerve action potential in the two patients were significantly higher than in the controls (55 ± 7.1 vs. 11 ± 7.8%, P  < 0.05). NCS may be useful for diagnosing injury of the medial branch of the SRN.

Joint Service Aircrew Mask (JSAM) Rotary Wing (RW): MPU-5 Noise Attenuation Performance

DTIC Science & Technology

2016-06-09

Swayne Ball Aerospace and Technologies Corp. Dayton, OH Hilary Gallagher Warfighter Interface Division Battlespace Acoustics Branch Wright... Acoustics Branch Battlespace Acoustics Branch Warfighter Interface Division //signed// WILLIAM E. RUSSELL Chief, Warfighter Interface...Directorate Warfighter Interface Division Battlespace Acoustics Branch Wright-Patterson AFB OH 45433 711 HPW/RHCB 11. SPONSOR

Myosin-II controls cellular branching morphogenesis and migration in 3D by minimizing cell surface curvature

PubMed Central

Elliott, Hunter; Fischer, Robert A.; Myers, Kenneth A.; Desai, Ravi A.; Gao, Lin; Chen, Christopher S.; Adelstein, Robert; Waterman, Clare M.; Danuser, Gaudenz

2014-01-01

In many cases cell function is intimately linked to cell shape control. We utilized endothelial cell branching morphogenesis as a model to understand the role of myosin-II in shape control of invasive cells migrating in 3D collagen gels. We applied principles of differential geometry and mathematical morphology to 3D image sets to parameterize cell branch structure and local cell surface curvature. We find that Rho/ROCK-stimulated myosin-II contractility minimizes cell-scale branching by recognizing and minimizing local cell surface curvature. Utilizing micro-fabrication to constrain cell shape identifies a positive feedback mechanism in which low curvature stabilizes myosin-II cortical association, where it acts to maintain minimal curvature. The feedback between myosin-II regulation by and control of curvature drives cycles of localized cortical myosin-II assembly and disassembly. These cycles in turn mediate alternating phases of directionally biased branch initiation and retraction to guide 3D cell migration. PMID:25621949

POINTS-OF-CONTACT (AIR POLLUTION TECHNOLOGY BRANCH, AIR POLLUTION PREVENTION AND CONTROL DIVISION, NRMRL)

EPA Science Inventory

The Air Pollution Technology Branch's (APTB) Point-of-Contact page lists APTB research areas along with the name, telephone number, and e-mail address for each responsible person. APTB's research areas include NOx Control, Hazardous Waste Incineration, Municipal Waste Combustion,...

Design of a portable powered seat lift

NASA Technical Reports Server (NTRS)

Weddendorf, Bruce

1993-01-01

People suffering from degenerative hip or knee joints find sitting and rising from a seated position very difficult. These people can rely on large stationary chairs at home, but must ask others for assistance when rising from any other chair. An orthopedic surgeon identified to the MSFC Technology Utilization Office the need for development of a portable device that could perform a similar function to the stationary lift chairs. The MSFC Structural Development Branch answered the Technology Utilization Office's request for design of a portable powered seat lift. The device is a seat cushion that opens under power, lifting the user to near-standing positions. The largest challenge was developing a mechanism to provide a stable lift over the large range of motion needed, and fold flat enough to be comfortable to sit on. CAD 3-D modeling was used to generate complete drawings for the prototype, and a full-scale working model of the Seat lift was made based on the drawings. The working model is of low strength, but proves the function of the mechanism and the concept.

The International Space Station Evolution Data Book: An Overview and Status

NASA Technical Reports Server (NTRS)

Antol, Jeffrey; Jorgensen, Catherine A.

1999-01-01

The evolution and enhancement of the International Space Station (ISS) is currently being planned in conjunction with the on-orbit construction of the baseline configuration. Three principal areas have been identified that will contribute to the evolution of ISS: Pre-Planned Program Improvement (P3I), Utilization & Commercialization, and Human Exploration and Development of Space (HEDS) missions. The ISS Evolution Strategy, under development by the Spacecraft and Sensors Branch of NASA Langley Research Center, seeks to coordinate the P3I technology development with Commercialization/Utilization activities and HEDS advanced mission accommodation to provide synergistic technology developments for all three areas. The focal point of this proposed strategy is the ISS Evolution Data Book (EDB), a tool for aiding the evolution and enhancement of ISS beyond Assembly Complete. This paper will discuss the strategy and provide an overview of the EDB, describing the contents of each section. It will also discuss potential applications of the EDB and present an example Design Reference Mission (DRM). The latest status of the EDB and the plans for completing and enhancing the book will also be summarized.

Solid State Technology Branch of NASA Lewis Research Center: Fifth Annual Digest

NASA Technical Reports Server (NTRS)

1993-01-01

The digest is a collection of papers written by the members of the Solid State Technology Branch of NASA Lewis Research Center from June 1992-June 1993. The papers cover a range of topics relating to superconductivity, monolithic microwave integrated circuits (MMIC's), coplanar waveguide, and material characterization.

RESEARCH AREA -- ARTIFICIAL INTELLIGENCE CONTROL (AIR POLLUTION TECHNOLOGY BRANCH, AIR POLLUTION PREVENTION AND CONTROL DIVISION, NRMRL)

EPA Science Inventory

The Air Pollution Technology Branch (APTB) of NRMRL's Air Pollution Prevention and Control Division in Research Triangle Park, NC, has conducted several research projects for evaluating the use of artificial intelligence (AI) to improve the control of pollution control systems an...

Microwave: An Important and Efficient Tool for the Synthesis of Biological Potent Organic Compounds.

PubMed

Kumari, Kamlesh; Vishvakarma, Vijay K; Singh, Prashant; Patel, Rajan; Chandra, Ramesh

2017-01-01

Green Chemistry is an interdisciplinary science or it can also be explained as a branch of chemistry. It is generally described as the chemistry to aim to synthesize chemical compounds to trim down the utilization of harmful chemicals proposed by the Environmental Protection Agency (EPA). Recently, the plan of academicians, researchers, industrialists is to generate greener and more efficient methodologies to carry out various organic syntheses. In the present scenario, green chemistry utilizes the raw materials economically, minimizes the waste and prevents the uses of harmful or hazardous chemicals to make the organic reactions simple and efficient. Microwave technique is a new, simple and efficient technology which opens new prospects to the chemists to carry out various organic and inorganic reactions, which are difficult via conventional methodology. It is used to decrease the duration of time to carry various organic transformation along with maximum yield, minimum by-products, minimum energy utilization, less manpower etc. e.g. various famous organic reactions have been carried out by various research groups like Aldol condensation, Knoevenagel condensation, Beckmann rearrangement, Vilsmeier reaction, Perkin reaction, Benzil-Benzilic acid rearrangement, Fischer cyclization, Mannich reaction, Claisen-Schmidt condensation, etc. Further, reduction, oxidation, coupling, condensation reaction were also performed using microwave technology. Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.

Implementation of health information technology to maximize efficiency of resource utilization in a geographically dispersed prenatal care delivery system.

PubMed

Cochran, Marlo Baker; Snyder, Russell R; Thomas, Elizabeth; Freeman, Daniel H; Hankins, Gary D V

2012-04-01

This study investigated the utilization of health information technology (HIT) to enhance resource utilization in a geographically dispersed tertiary care system with extensive outpatient and delivery services. It was initiated as a result of a systems change implemented after Hurricane Ike devastated southeast Texas. A retrospective database and electronic medical record review was performed, which included data collection from all patients evaluated 18 months prior (epoch I) and 18 months following (epoch II) the landfall of Hurricane Ike. The months immediately following the storm were omitted from the analysis, allowing time to establish a new baseline. We analyzed a total of 21,201 patients evaluated in triage at the University of Texas Medical Branch. Epoch I consisted of 11,280 patients and epoch II consisted of 9922 patients. Using HIT, we were able to decrease the number of visits to triage while simultaneously managing more complex patients in the outpatient setting with no clinically significant change in maternal or fetal outcome. This study developed an innovated model of care using constrained resources while providing quality and safety to our patients without additional cost to the health care delivery system. Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Correlation of ultrasound appearance, gross anatomy, and histology of the femoral nerve at the femoral triangle.

PubMed

Lonchena, Tiffany K; McFadden, Kathryn; Orebaugh, Steven L

2016-01-01

Correlation between ultrasound appearance, gross anatomic characteristics, and histologic structure of the femoral nerve (FN) is lacking. Utilizing cadavers, we sought to characterize the anatomy of the FN, and provide a quantitative measure of its branching. We hypothesize that at the femoral crease, the FN exists as a group of nerve branches, rather than a single nerve structure, and secondarily, that this transition into many branches is apparent on ultrasonography. Nineteen preserved cadavers were investigated. Ultrasonography was sufficient to evaluate the femoral nerve in nine specimens; gross dissection was utilized in all 19. Anatomic characteristics were recorded, including distances from the inguinal ligament to femoral crease, first nerve branch, and complete arborization of the nerve. The nerves from nine specimens were excised for histologic analysis. On ultrasound, the nerve became more flattened, widened, and less discrete as it coursed distally. Branching of the nerve was apparent in 12 of 18 images, with mean distance from inguinal ligament of 3.9 (1.0) cm. However, upon dissection, major branching of the femoral nerve occurred at 3.1 (1.0) cm distal to the inguinal ligament, well proximal to the femoral crease. Histologic analysis was consistent with findings at dissection. The femoral nerve arborizes into multiple branches between the inguinal ligament and the femoral crease. Initial branching is often high in the femoral triangle. As hypothesized, the FN exists as a closely associated group of nerve branches at the level of the femoral crease; however, the termination of the nerve into multiple branches is not consistently apparent on ultrasonography.

DNA Carrier Testing and Newborn Screening for Maple Syrup Urine Disease in Old Order Mennonite Communities

PubMed Central

Carleton, Stephanie M.; Peck, Dawn S.; Grasela, Julie; Dietiker, Kristin L.

2010-01-01

Maple syrup urine disease (MSUD) is an inherited metabolic disorder caused by mutations in the branched chain α-keto acid dehydrogenase complex. Worldwide incidence of MSUD is 1:225,000 live births. However, within Old Order Mennonite communities, the incidence is 1:150 live births and results from a common tyrosine to asparagine substitution (Y438N) in the E1α subunit of branched chain α-keto acid dehydrogenase. We developed a new DNA diagnostic assay utilizing TaqMan® technology and compared its efficacy, sensitivity, and duration with an existing polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) assay. Carrier testing was performed by both TaqMan technology and PCR-RFLP on DNA isolated from buccal swabs of 160 individuals as well as from buccal swabs and blood spots of nine at-risk newborns; assay time, sensitivity, and reliability were also evaluated. The TaqMan assay, like the PCR-RFLP assay, accurately determined Y438N E1α allele status. However, the TaqMan assay appeared (1) more sensitive than the PCR-RFLP assay, requiring 10-fold less DNA (10 ng) to reliably determine genotype status and (2) faster, reducing the assay time required for diagnosis from ∼12 to 5 h. TaqMan technology allowed more rapid DNA diagnoses of MSUD in the neonate, thereby reducing the likelihood of neurological impairment while enhancing health and prognosis for affected infants. PMID:20136525

Vulnerability to Substance Abuse and the Risk of Suicide in Students of Region 12 of Islamic Azad University

PubMed Central

Monirpoor, Nader; Khoosfi, Helen; Gholamy Zarch, Morteza; Tamaddonfard, Mohsen; Tabatabaei Mir, Seyed Farzad; Mohammad Alipour, Maryam; Karimi, Yasamin

2014-01-01

Background: Substance abuse prevalence and the number of suicides among university students is less than public population; however the sensitivity of society regarding the occurrence of such damages among students puts special emphasis on appraising these variables. More than 30% of Iranian students study in Islamic Azad University. Objectives: The current research aimed to appraise the vulnerability of substance abuse and the risk of suicide in students of region 12 of Islamic Azad University. Patients and Methods: In the current study, 1053 students (606 boys and 447 girls) with the average age of 22.55 years were selected through stratified sampling from Karaj, Takestan, Qazvin and Qom branches of Islamic Azad University. In order to assess the variables, Mental Health Worksheet of Central Counseling Office of the Ministry Science, Research and Technology was utilized. Results: Average, standard deviation, minimum and maximum scores in substance abuse vulnerability of the students in region 12 were measured as 36.28, 14.68, 11.22 and 92.87; and the same for risk of suicide were 31.29, 15.61, 7.93 and 96.30, respectively. Students in Qom branch were significantly less vulnerable to substance abuse and less exposed to the risk of suicide than their peers in Karaj, Qazvin and Takestan branches. Conclusions: Less significant possibility of substance abuse and risk of suicide in students of Qom branch in comparison with other branches could be due to numerous variables particularly their religious attitudes. Nevertheless the average of these variables among the students of region 12 were higher than the reported scores of their peers in the state universities which reflects the serious need for precise assessments and providing preventive services and mental health interventions. PMID:25032157

Vulnerability to substance abuse and the risk of suicide in students of region 12 of islamic azad university.

PubMed

Monirpoor, Nader; Khoosfi, Helen; Gholamy Zarch, Morteza; Tamaddonfard, Mohsen; Tabatabaei Mir, Seyed Farzad; Mohammad Alipour, Maryam; Karimi, Yasamin

2014-06-01

Substance abuse prevalence and the number of suicides among university students is less than public population; however the sensitivity of society regarding the occurrence of such damages among students puts special emphasis on appraising these variables. More than 30% of Iranian students study in Islamic Azad University. The current research aimed to appraise the vulnerability of substance abuse and the risk of suicide in students of region 12 of Islamic Azad University. In the current study, 1053 students (606 boys and 447 girls) with the average age of 22.55 years were selected through stratified sampling from Karaj, Takestan, Qazvin and Qom branches of Islamic Azad University. In order to assess the variables, Mental Health Worksheet of Central Counseling Office of the Ministry Science, Research and Technology was utilized. Average, standard deviation, minimum and maximum scores in substance abuse vulnerability of the students in region 12 were measured as 36.28, 14.68, 11.22 and 92.87; and the same for risk of suicide were 31.29, 15.61, 7.93 and 96.30, respectively. Students in Qom branch were significantly less vulnerable to substance abuse and less exposed to the risk of suicide than their peers in Karaj, Qazvin and Takestan branches. Less significant possibility of substance abuse and risk of suicide in students of Qom branch in comparison with other branches could be due to numerous variables particularly their religious attitudes. Nevertheless the average of these variables among the students of region 12 were higher than the reported scores of their peers in the state universities which reflects the serious need for precise assessments and providing preventive services and mental health interventions.

Working Overseas: Implementing Technology for a Branch Campus in the Middle East

ERIC Educational Resources Information Center

Chester, Timothy M.

2005-01-01

On July 5, 2003, the author landed in Qatar, a newly minted CIO from College Station, Texas. His charge is to design and implement the required IT infrastructure--including telecommunications, networking, computing, and instructional technology--necessary to support Texas A&M University's newest branch campus, Texas A&M University at Qatar…

Composite Overview and Composite Aerocover Overview

NASA Technical Reports Server (NTRS)

Caraccio, Anne; Tate, LaNetra; Dokos, Adam; Taylor, Brian; Brown, Chad

2014-01-01

Materials Science Division within the Engineering Directorate tasked by the Ares Launch Vehicle Division (LX-V) and the Fluids Testing and Technology Development Branch (NE-F6) to design, fabricate and test an aerodynamic composite shield for potential Heavy Lift Launch Vehicle infusion and a composite strut that will serve as a pathfinder in evaluating calorimeter data for the CRYOSTAT (cryogenic on orbit storage and transfer) Project. ATP project is to carry the design and development of the aerodynamic composite cover or "bracket" from cradle to grave including materials research, purchasing, design, fabrication, testing, analysis and presentation of the final product. Effort consisted of support from the Materials Testing & Corrosion Control Branch (NE-L2) for mechanical testing, the Prototype Development Branch (NE-L3) for CAD drawing, design/analysis, and fabrication, Materials & Processes Engineering Branch (NE-L4) for project management and materials selection; the Applied Physics Branch (NE-LS) for NDE/NDI support; and the Chemical Analysis Branch (NE-L6) for developmental systems evaluation. Funded by the Ares Launch Vehicle Division and the Fluids Testing and Technology Development Branch will provide ODC

Three-Dimensional Reconstruction of the Virtual Plant Branching Structure Based on Terrestrial LIDAR Technologies and L-System

NASA Astrophysics Data System (ADS)

Gong, Y.; Yang, Y.; Yang, X.

2018-04-01

For the purpose of extracting productions of some specific branching plants effectively and realizing its 3D reconstruction, Terrestrial LiDAR data was used as extraction source of production, and a 3D reconstruction method based on Terrestrial LiDAR technologies combined with the L-system was proposed in this article. The topology structure of the plant architectures was extracted using the point cloud data of the target plant with space level segmentation mechanism. Subsequently, L-system productions were obtained and the structural parameters and production rules of branches, which fit the given plant, was generated. A three-dimensional simulation model of target plant was established combined with computer visualization algorithm finally. The results suggest that the method can effectively extract a given branching plant topology and describes its production, realizing the extraction of topology structure by the computer algorithm for given branching plant and also simplifying the extraction of branching plant productions which would be complex and time-consuming by L-system. It improves the degree of automation in the L-system extraction of productions of specific branching plants, providing a new way for the extraction of branching plant production rules.

Modern prospects of development of branch of solar power

NASA Astrophysics Data System (ADS)

Luchkina, Veronika

2017-10-01

Advantages of solar energy for modern companies are evident already. Article describes mechanism of the solar electricity generation. Process of production of solar modules with appliance of the modern technologies of sun energy production. The branch of solar energy “green energy” become advanced in Russia and has a stable demand. Classification of investments on the different stages of construction projects of solar power plants and calculation of their economic efficiency. Studying of introduction of these technologies allows to estimate the modern prospects of development of branch of solar power.

Joint Rapid Airfield Construction (JRAC) 2007 Technology Demonstration

DTIC Science & Technology

2008-07-01

ER D C/ G SL T R- 08 -1 7 Joint Rapid Airfield Construction (JRAC) 2007 Technology Demonstration Gary L. Anderton, Ernest S. Berney IV...Technology Demonstration Gary L. Anderton, Ernest S. Berney IV, Travis A. Mann, J. Kent Newman, E. Alex Baylot, Daniel K. Miller, and Quint Mason... Berney IV, Dr. J. Kent Newman, Daniel K. Miller, Quint Mason, Airfields and Pavements Branch (APB), and E. Alex Baylot, Mobility Systems Branch. The

An equivalent circuit model of supercapacitors for applications in wireless sensor networks

NASA Astrophysics Data System (ADS)

Yang, Hengzhao; Zhang, Ying

2011-04-01

Energy harvesting technologies have been extensively researched to develop long-lived wireless sensor networks. To better utilize the harvested energy, various energy storage systems are proposed. A simple circuit model is developed to describe supercapacitor behavior, which uses two resistor-capacitor branches with different time constants to characterize the charging and redistribution processes, and a variable leakage resistance (VLR) to characterize the self-discharge process. The voltage and temperature dependence of the VLR values is also discussed. Results show that the VLR model is more accurate than the energy recursive equation (ERE) models for short term wireless sensor network applications.

Properties of Acetate Kinase Isozymes and a Branched-Chain Fatty Acid Kinase from a Spirochete

PubMed Central

Harwood, Caroline S.; Canale-Parola, Ercole

1982-01-01

Spirochete MA-2, which is anaerobic, ferments glucose, forming acetate as a major product. The spirochete also ferments (but does not utilize as growth substrates) small amounts of l-leucine, l-isoleucine, and l-valine, forming the branched-chain fatty acids isovalerate, 2-methylbutyrate, and isobutyrate, respectively, as end products. Energy generated through the fermentation of these amino acids is utilized to prolong cell survival under conditions of growth substrate starvation. A branched-chain fatty acid kinase and two acetate kinase isozymes were resolved from spirochete MA-2 cell extracts. Kinase activity was followed by measuring the formation of acyl phosphate from fatty acid and ATP. The branched-chain fatty acid kinase was active with isobutyrate, 2-methylbutyrate, isovalerate, butyrate, valerate, or propionate as a substrate but not with acetate as a substrate. The acetate kinase isozymes were active with acetate and propionate as substrates but not with longer-chain fatty acids as substrates. The acetate kinase isozymes and the branched-chain fatty acid kinase differed in nucleoside triphosphate and cation specificities. Each acetate kinase isozyme had an apparent molecular weight of approximately 125,000, whereas the branched-chain fatty acid kinase had a molecular weight of approximately 76,000. These results show that spirochete MA-2 synthesizes a branched-chain fatty acid kinase specific for leucine, isoleucine, and valine fermentation. It is likely that a phosphate branched-chain amino acids is also synthesized by spirochete MA-2. Thus, in spirochete MA-2, physiological mechanisms have evolved which serve specifically to generate maintenance energy from branched-chain amino acids. PMID:6288660

Production of branched-chain alcohols by recombinant Ralstonia eutropha in fed-batch cultivation

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

Fei, Q; Brigham, CJ; Lu, JN

Branched-chain alcohols are considered promising green energy sources due to their compatibility with existing infrastructure and their high energy density. We utilized a strain of Ralstonia eutropha capable of producing branched-chain alcohols and examined its production in flask cultures. In order to increase isobutanol and 3-methyl-1-butanol (isoamyl alcohol) productivity in the engineered strain, batch, fed-batch, and two-stage fed-batch cultures were carried out in this work. The effects of nitrogen source concentration on branched-chain alcohol production were investigated under four different initial concentrations in fermenters. A maximum 380 g m(-3) of branched-chain alcohol production was observed with 2 kg m(-3) initialmore » NH4Cl concentration in batch cultures. A pH-stat control strategy was utilized to investigate the optimum carbon source amount fed during fed-batch cultures for higher cell density. In cultures of R. eutropha strains that did not produce polyhydroxyalkanoate or branched-chain alcohols, a maximum cell dry weight of 36 kg m(-3) was observed using a fed-batch strategy, when 10 kg m(-3) carbon source was fed into culture medium. Finally, a total branched-chain alcohol titer of 790 g m(-3), the highest branched-chain alcohol yield of 0.03 g g(-1), and the maximum branched-chain alcohol productivity of 8.23 g m(-3) h(-1) were obtained from the engineered strain Re2410/pJL26 in a two-stage fed-batch culture system with pH-stat control. Isobutanol made up over 95% (mass fraction) of the total branched-chain alcohols titer produced in this study. (C) 2013 Published by Elsevier Ltd.« less

High-Temperature, Thin-Film Ceramic Thermocouples Developed

NASA Technical Reports Server (NTRS)

Sayir, Ali; Blaha, Charles A.; Gonzalez, Jose M.

2005-01-01

To enable long-duration, more distant human and robotic missions for the Vision for Space Exploration, as well as safer, lighter, quieter, and more fuel efficient vehicles for aeronautics and space transportation, NASA is developing instrumentation and material technologies. The high-temperature capabilities of thin-film ceramic thermocouples are being explored at the NASA Glenn Research Center by the Sensors and Electronics Branch and the Ceramics Branch in partnership with Case Western Reserve University (CWRU). Glenn s Sensors and Electronics Branch is developing thin-film sensors for surface measurement of strain, temperature, heat flux, and surface flow in propulsion system research. Glenn s Ceramics Branch, in conjunction with CWRU, is developing structural and functional ceramic technology for aeropropulsion and space propulsion.

Self-Biased Hybrid Piezoelectric-Photoelectrochemical Cell with Photocatalytic Functionalities.

PubMed

Tan, Chuan Fu; Ong, Wei Li; Ho, Ghim Wei

2015-07-28

Utilizing solar energy for environmental and energy remediations based on photocatalytic hydrogen (H2) generation and water cleaning poses great challenges due to inadequate visible-light power conversion, high recombination rate, and intermittent availability of solar energy. Here, we report an energy-harvesting technology that utilizes multiple energy sources for development of sustainable operation of dual photocatalytic reactions. The fabricated hybrid cell combines energy harvesting from light and vibration to run a power-free photocatalytic process that exploits novel metal-semiconductor branched heterostructure (BHS) of its visible light absorption, high charge-separation efficiency, and piezoelectric properties to overcome the aforementioned challenges. The desirable characteristics of conductive flexible piezoelectrode in conjunction with pronounced light scattering of hierarchical structure originate intrinsically from the elaborate design yet facile synthesis of BHS. This self-powered photocatalysis system could potentially be used as H2 generator and water treatment system to produce clean energy and water resources.

Research and Development Strategies for Human Centered and Group Support Technologies

DTIC Science & Technology

1992-05-01

al.,6 Rothwell, 7 Hidson,8 and Richards and Companion 9 provide detailed 3 R . Bruce Gould, AFHRI/MOD, MPT Technology Branch, Brooks AFB, TX, and...88 Transactions, Boston, 1988. Gould, R . Bruce , AFHRL/MOD, MPT Technology Branch, Brooks AFB, TX, and Thomas Nondorf, McDonnell Douglas Corp. MCAIR...future R &D activities. This paper reports the results of research performed by an Institute for Defense Analyses study team whose immediate goal was

The Concept of C2 Communication and Information Support

DTIC Science & Technology

2004-06-01

communication and information literacy , • Sensors: technology and systematic development as a branch, • Military prognosis research (combat models...intelligence, • Visualization of actions, suitable forms of information presentation, • Techniques of learning CIS users communication and information ... literacy , • Sensors: technology and systematic development as a branch, • Military prognosis research (combat models), • Man - machine interface. CISu

Solid State Technology Branch of NASA Lewis Research Center: Fifth Annual Digest

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

Not Available

1993-08-01

The digest is a collection of papers written by the members of the Solid State Technology Branch of NASA Lewis Research Center from June 1992-June 1993. The papers cover a range of topics relating to superconductivity, monolithic microwave integrated circuits (MMIC`s), coplanar waveguide, and material characterization. Individual papers are abstracted separately on the data base.

Joint Service Aircrew Mask (JSAM) - Strategic Aircraft (SA): Noise Attenuation Performance

DTIC Science & Technology

2015-08-25

Billy Swayne Ball Aerospace and Technologies Corp. Dayton, OH Hilary Gallagher Warfighter Interface Division Battlespace Acoustics Branch...DISTRIBUTION STATEMENT. //signed// //signed// Hilary Gallagher Robert C. McKinley Work Unit Manager Chief, Battlespace Acoustics Branch...Battlespace Acoustics Branch Warfighter Interface Division //signed// William E. Russell, Chief Warfighter Interface Division Human

Requirements and applications for robotic servicing of military space systems

NASA Technical Reports Server (NTRS)

Ledford, Otto C., Jr.; Bennett, Rodney G.

1992-01-01

The utility of on-orbit servicing of spacecraft has been demonstrated by NASA several times using shuttle-based astronaut EVA. There has been interest in utilizing on-orbit servicing for military space systems as well. This interest has been driven by the increasing reliance of all branches of the military upon space-based assets, the growing numbers, complexity, and cost of those assets, and a desire to normalize support policies for space-based operations. Many military satellites are placed in orbits which are unduly hostile for astronaut operations and/or cannot be reached by the shuttle. In addition, some of the projected tasks may involve hazardous operations. This has led to a focus on robotic systems, instead of astronauts, for the basis of projected servicing systems. This paper describes studies and activities which will hopefully lead to on-orbit servicing being one of the tools available to military space systems designers and operators. The utility of various forms of servicing has been evaluated for present and projected systems, critical technologies have been identified, and strategies for the development and insertion of this technology into operational systems have been developed. Many of the projected plans have been adversely affected by budgetary restrictions and evolving architectures, but the fundamental benefits and requirements are well understood. A method of introducing servicing capabilities in a manner which has a low impact on the system designer and does not require the prior development of an expensive infrastructure is discussed. This can potentially lead to an evolutionary implementation of the full technology.

Internet resources for dentistry: government and medical sites for the dental professional.

PubMed

Guest, G F

2000-02-15

As society transitions deeper into the Information Age, Information Technology has become a critical tool that supports all facets of the global economy. The Internet, via the World-Wide Web (WWW), has become a major component of business operations for corporate and educational organizational entities. An estimated 10,000 or more health-related websites are providing information for both consumers and healthcare professionals. In addition to private and state-supported institutions being present on the Internet, the federal government has moved rapidly toward disseminating information electronically, with significant utilization of the WWW as the technological vehicle. All branches of the US Government and federal-related agencies are now represented on the Internet in an effort to deliver content to their end users, primarily the public. The intent of this article is to complement the previous publication, "Internet Resources for Dentistry: Utilization of the Internet to Support Professional Growth, Decision Making, and Patient Care," by presenting dental healthcare professionals with information on additional governmental and medical "Internet" sites. In addition, healthcare professionals must arm themselves with more than just access itself, but also the ability to critically judge the quality of information retrieved from the WWW.

78 FR 37245 - Submission for Review: OPM Form 1203-FX, Occupational Questionnaire

Federal Register 2010, 2011, 2012, 2013, 2014

2013-06-20

...The Automated Systems Management Branch, Office of Personnel Management (OPM) offers the general public and other Federal agencies the opportunity to comment on an existing information collection request (ICR) 3206-0040, Occupational Questionnaire, OPM Form 1203-FX. As required by the Paperwork Reduction Act of 1995, (Pub. L. 104-13, 44 U.S.C. chapter 35) as amended by the Clinger-Cohen Act (Pub. L. 104- 106), OPM is soliciting comments for this collection. The Office of Management and Budget is particularly interested in comments that: 1. Evaluate whether the proposed collection of information is necessary for the proper performance of the functions of OPM, including whether the information will have practical utility; 2. Evaluate the accuracy of OPM's estimate of the burden of the proposed collection of information, including the validity of the methodology and assumptions used; 3. Enhance the quality, utility, and clarity of the information to be collected; and 4. Minimize the burden of the collection of information on those who are to respond, including through the use of appropriate automated, electronic, mechanical, or other technological collection techniques or other forms of information technology, e.g., permitting electronic submissions of responses.

Software Engineering for Human Spaceflight

NASA Technical Reports Server (NTRS)

Fredrickson, Steven E.

2014-01-01

The Spacecraft Software Engineering Branch of NASA Johnson Space Center (JSC) provides world-class products, leadership, and technical expertise in software engineering, processes, technology, and systems management for human spaceflight. The branch contributes to major NASA programs (e.g. ISS, MPCV/Orion) with in-house software development and prime contractor oversight, and maintains the JSC Engineering Directorate CMMI rating for flight software development. Software engineering teams work with hardware developers, mission planners, and system operators to integrate flight vehicles, habitats, robotics, and other spacecraft elements. They seek to infuse automation and autonomy into missions, and apply new technologies to flight processor and computational architectures. This presentation will provide an overview of key software-related projects, software methodologies and tools, and technology pursuits of interest to the JSC Spacecraft Software Engineering Branch.

Considerations regarding the deployment of hypermedia at JSC

NASA Technical Reports Server (NTRS)

Kacmar, Charles J.

1993-01-01

Electronic documents and systems are becoming the primary means of managing information for ground and space operations at NASA. These documents will utilize hypertext and hypermedia technologies to aid users in structuring and accessing information. Documents will be composed of static and dynamic data consisting of user-defined annotations and hypermedia links. The report consists of three major sections. First, it provides an overview of hypermedia and surveys the use of hypermedia throughout JSC. Second, it briefly describes a prototypical hypermedia system that was developed in conjunction with this work. This system was constructed to demonstrate various hypermedia features and to serve as a platform for supporting the electronic documentation needs for the MIDAS system developed by the Intelligent Systems Branch of the Automation and Robotics Division (Pac92). Third, it discusses emerging hypermedia technologies which have either been untapped by vendors or present significant challenges to the Agency.

NASA's Ultraviolet Astrophysics Branch: Present and future detector program

NASA Technical Reports Server (NTRS)

Welsh, Barry Y.

1992-01-01

The various concepts in ultraviolet detector technology currently being funded by NASA's Astrophysics Division to carry out observations in the 100 to 3000 A region are reviewed. In order to match the science objectives of future space missions with new observational techniques, critical detector technology needs in the ultraviolet regime have been identified. The attempt by NASA's Astrophysics Division Advanced Programs Branch to formulate an integrated detector technology plan as part of the ongoing 'Astrotech 21' program in order to provide the technology base for these astrophysics missions of the 21st century is described.

Overview of the Advanced High Frequency Branch

NASA Technical Reports Server (NTRS)

Miranda, Felix A.

2015-01-01

This presentation provides an overview of the competencies, selected areas of research and technology development activities, and current external collaborative efforts of the NASA Glenn Research Center's Advanced High Frequency Branch.

Academic Branch Libraries: Assessment and Collection Development

ERIC Educational Resources Information Center

Poole, Julie

2009-01-01

An ongoing project at Mercer University's Regional Academic Center Libraries illustrates how utilizing established assessment guidelines, stakeholder input, and a clear understanding of audience and curriculum needs may all be used to optimize a collection. Academic branch libraries often have clear collection development limitations in terms of…

Fabrication of hierarchically branched SnO2 nanowires by two-step deposition method and their applications to electrocatalyst support and Li ion electrode

NASA Astrophysics Data System (ADS)

Lee, Sang Ho; Jo, Yong-Ryun; Noh, Yuseong; Kim, Bong-Joong; Kim, Won Bae

2017-11-01

This paper reports hierarchically branched structures of tin dioxide nanowires for use in electrochemical energy conversion and storage electrode systems. The shallow tin dioxide branches are epitaxially grown on the tin dioxide nanowire backbones that are directly formed on current collectors. The branched tin dioxide nanowires are applied as anode electrodes for lithium-ion batteries, while palladium-incorporated branched nanowires are utilized as electrocatalysts for ethanol electrooxidation reactions. The structural benefits of these hierarchical platforms, such as enlarged electrochemical active surface area, void space formed between the branched structures, and conformal contact of the electroactive materials with current collectors, play important roles in improving the electrochemical Li-ion storage as well as electrocatalytic activity.

BPP: a sequence-based algorithm for branch point prediction.

PubMed

Zhang, Qing; Fan, Xiaodan; Wang, Yejun; Sun, Ming-An; Shao, Jianlin; Guo, Dianjing

2017-10-15

Although high-throughput sequencing methods have been proposed to identify splicing branch points in the human genome, these methods can only detect a small fraction of the branch points subject to the sequencing depth, experimental cost and the expression level of the mRNA. An accurate computational model for branch point prediction is therefore an ongoing objective in human genome research. We here propose a novel branch point prediction algorithm that utilizes information on the branch point sequence and the polypyrimidine tract. Using experimentally validated data, we demonstrate that our proposed method outperforms existing methods. Availability and implementation: https://github.com/zhqingit/BPP. djguo@cuhk.edu.hk. Supplementary data are available at Bioinformatics online. © The Author (2017). Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com

LTN Inlets and Nozzles Branch Overview; NASA GE - Methods Development Review

NASA Technical Reports Server (NTRS)

Long-Davis, Mary Jo

2017-01-01

LTNInlets and Nozzles Branch Overview to be presented to GE during method review meeting. Presentation outlines the capabilities, facilities and tools used by the LTN Branch to conduct its mission of developing design and analysis tools and technologies for inlets and nozzles used on advanced vehicle concepts ranging from subsonic to hypersonic speeds.

Design and Verification Guidelines for Vibroacoustic and Transient Environments

NASA Technical Reports Server (NTRS)

1986-01-01

Design and verification guidelines for vibroacoustic and transient environments contain many basic methods that are common throughout the aerospace industry. However, there are some significant differences in methodology between NASA/MSFC and others - both government agencies and contractors. The purpose of this document is to provide the general guidelines used by the Component Analysis Branch, ED23, at MSFC, for the application of the vibroacoustic and transient technology to all launch vehicle and payload components and payload components and experiments managed by NASA/MSFC. This document is intended as a tool to be utilized by the MSFC program management and their contractors as a guide for the design and verification of flight hardware.

The sensitivity of gas-phase models of dense interstellar clouds to changes in dissociative recombination branching ratios

NASA Technical Reports Server (NTRS)

Millar, T. J.; Defrees, D. J.; Mclean, A. D.; Herbst, E.

1988-01-01

The approach of Bates to the determination of neutral product branching ratios in ion-electron dissociative recombination reactions has been utilized in conjunction with quantum chemical techniques to redetermine branching ratios for a wide variety of important reactions of this class in dense interstellar clouds. The branching ratios have then been used in a pseudo time-dependent model calculation of the gas phase chemistry of a dark cloud resembling TMC-1 and the results compared with an analogous model containing previously used branching ratios. In general, the changes in branching ratios lead to stronger effects on calculated molecular abundances at steady state than at earlier times and often lead to reductions in the calculated abundances of complex molecules. However, at the so-called 'early time' when complex molecule synthesis is most efficient, the abundances of complex molecules are hardly affected by the newly used branching ratios.

Technology transfer metrics: Measurement and verification of data/reusable launch vehicle business analysis

NASA Technical Reports Server (NTRS)

Trivoli, George W.

1996-01-01

Congress and the Executive Branch have mandated that all branches of the Federal Government exert a concentrated effort to transfer appropriate government and government contractor-developed technology to the industrial use in the U.S. economy. For many years, NASA has had a formal technology transfer program to transmit information about new technologies developed for space applications into the industrial or commercial sector. Marshall Space Flight Center (MSFC) has been in the forefront of the development of U.S. industrial assistance programs using technologies developed at the Center. During 1992-93, MSFC initiated a technology transfer metrics study. The MSFC study was the first of its kind among the various NASA centers. The metrics study is a continuing process, with periodic updates that reflect on-going technology transfer activities.

Infusion of innovative technologies for mission operations

NASA Astrophysics Data System (ADS)

Donati, Alessandro

2010-11-01

The Advanced Mission Concepts and Technologies Office (Mission Technologies Office, MTO for short) at the European Space Operations Centre (ESOC) of ESA is entrusted with research and development of innovative mission operations concepts systems and provides operations support to special projects. Visions of future missions and requests for improvements from currently flying missions are the two major sources of inspiration to conceptualize innovative or improved mission operations processes. They include monitoring and diagnostics, planning and scheduling, resource management and optimization. The newly identified operations concepts are then proved by means of prototypes, built with embedded, enabling technology and deployed as shadow applications in mission operations for an extended validation phase. The technology so far exploited includes informatics, artificial intelligence and operational research branches. Recent outstanding results include artificial intelligence planning and scheduling applications for Mars Express, advanced integrated space weather monitoring system for the Integral space telescope and a suite of growing client applications for MUST (Mission Utilities Support Tools). The research, development and validation activities at the Mission technologies office are performed together with a network of research institutes across Europe. The objective is narrowing the gap between enabling and innovative technology and space mission operations. The paper first addresses samples of technology infusion cases with their lessons learnt. The second part is focused on the process and the methodology used at the Mission technologies office to fulfill its objectives.

Deep Temporal Nerve Transfer for Facial Reanimation: Anatomic Dissections and Surgical Case Report.

PubMed

Mahan, Mark A; Sivakumar, Walavan; Weingarten, David; Brown, Justin M

2017-09-08

Facial nerve palsy is a disabling condition that may arise from a variety of injuries or insults and may occur at any point along the nerve or its intracerebral origin. To examine the use of the deep temporal branches of the motor division of the trigeminal nerve for neural reconstruction of the temporal branches of the facial nerve for restoration of active blink and periorbital facial expression. Formalin-fixed human cadaver hemifaces were dissected to identify landmarks for the deep temporal branches and the tension-free coaptation lengths. This technique was then utilized in 1 patient with a history of facial palsy due to a brainstem cavernoma. Sixteen hemifaces were dissected. The middle deep temporal nerve could be consistently identified on the deep side of the temporalis, within 9 to 12 mm posterior to the jugal point of the zygoma. From a lateral approach through the temporalis, the middle deep temporal nerve could be directly coapted to facial temporal branches in all specimens. Our patient has recovered active and independent upper facial muscle contraction, providing the first case report of a distinct distal nerve transfer for upper facial function. The middle deep temporal branches can be readily identified and utilized for facial reanimation. This technique provided a successful reanimation of upper facial muscles with independent activation. Utilizing multiple sources for neurotization of the facial muscles, different potions of the face can be selectively reanimated to reduce the risk of synkinesis and improved control. Copyright © 2017 by the Congress of Neurological Surgeons

A Mathematical Study on “Additive Technique” Versus “Branch and Bound Technique” for Solving Binary Programming Problem

NASA Astrophysics Data System (ADS)

Sufahani, Suliadi; Ghazali Kamardan, M.; Saifullah Rusiman, Mohd; Mohamad, Mahathir; Khalid, Kamil; Ali, Maselan; Khalid, Kamal; Nawawi, MKM; Ahmad, Asmala

2018-04-01

A solid body needs adequate supplements from nourishment that we eat each day. Eating pretty much than what our body needs will prompt lack of healthy sustenance (under-nourishment and over-nourishment). In Malaysia, a few reviews have been directed to examine the wholesome status of Malaysians, particularly among youngsters and youths. However there are different methods for taking care of the menu arranging issue and in this paper Binary Programming (BP) is executed. Separately, “Additive Technique (AT)” and “Branch and Bound Technique (BBT)” are utilized as a part of BP. Both methodologies utilize diverse systems and might yield distinctive ideal arrangements. Along these lines, this study expects to build up a scientific model for eating regimen arranging that meets the essential supplement admission and look at the outcomes yield through additive substance and branch and bound methodologies. The information was gathered from different all inclusive schools and furthermore from the Ministry of Education. The model was illuminated by utilizing the Balas Algorithm through AT and Binary Programming through BBT.

10 CFR 170.21 - Schedule of fees for production and utilization facilities, review of standard referenced design...

Code of Federal Regulations, 2012 CFR

2012-01-01

..., Certification Full cost. Amendment, Renewal, Other Approvals Full cost. C. Test Facility/Research Reactor... of components requiring Commission and Executive Branch review, for example, actions under 10 CFR 110... export of reactor and other components requiring Executive Branch review, for example, those actions...

Preserving Source Location Privacy for Energy Harvesting WSNs.

PubMed

Huang, Changqin; Ma, Ming; Liu, Yuxin; Liu, Anfeng

2017-03-30

Fog (From cOre to edGe) computing employs a huge number of wireless embedded devices to enable end users with anywhere-anytime-to-anything connectivity. Due to their operating nature, wireless sensor nodes often work unattended, and hence are exposed to a variety of attacks. Preserving source-location privacy plays a key role in some wireless sensor network (WSN) applications. In this paper, a redundancy branch convergence-based preserved source location privacy scheme (RBCPSLP) is proposed for energy harvesting sensor networks, with the following advantages: numerous routing branches are created in non-hotspot areas with abundant energy, and those routing branches can merge into a few routing paths before they reach the hotspot areas. The generation time, the duration of routing, and the number of routing branches are then decided independently based on the amount of energy obtained, so as to maximize network energy utilization, greatly enhance privacy protection, and provide long network lifetimes. Theoretical analysis and experimental results show that the RBCPSLP scheme allows a several-fold improvement of the network energy utilization as well as the source location privacy preservation, while maximizing network lifetimes.

Preserving Source Location Privacy for Energy Harvesting WSNs

PubMed Central

Huang, Changqin; Ma, Ming; Liu, Yuxin; Liu, Anfeng

2017-01-01

Fog (From cOre to edGe) computing employs a huge number of wireless embedded devices to enable end users with anywhere-anytime-to-anything connectivity. Due to their operating nature, wireless sensor nodes often work unattended, and hence are exposed to a variety of attacks. Preserving source-location privacy plays a key role in some wireless sensor network (WSN) applications. In this paper, a redundancy branch convergence-based preserved source location privacy scheme (RBCPSLP) is proposed for energy harvesting sensor networks, with the following advantages: numerous routing branches are created in non-hotspot areas with abundant energy, and those routing branches can merge into a few routing paths before they reach the hotspot areas. The generation time, the duration of routing, and the number of routing branches are then decided independently based on the amount of energy obtained, so as to maximize network energy utilization, greatly enhance privacy protection, and provide long network lifetimes. Theoretical analysis and experimental results show that the RBCPSLP scheme allows a several-fold improvement of the network energy utilization as well as the source location privacy preservation, while maximizing network lifetimes. PMID:28358341

An Overview of Rare Earth Science and Technology

NASA Astrophysics Data System (ADS)

Gschneidner, Karl, Jr.

2012-02-01

Currently rare earth science and technology is robust: this includes all the major branches of science -- biochemistry, chemistry, materials and physics. There are, however, currently some anomalies and distortions especially in the technology and applications sector of the rare earth field, which is caused by the dominance of China on the sales of rare earths and rare earth containing products. For the past 5 to 10 years ˜95% of rare earths utilized in commerce came from China. Although Chinese actions have lead to sudden and large price spikes and export embargoes, the rare earths are still available but at a higher cost. The start up of production in 2011 at mines in the USA and Australia will alleviate this situation in about two years. Basic and applied research on the condensed matter physics/materials science has hardly been impacted by these events, but new research opportunities are opening up especially with regard to the USA's military and energy security. Magnets seems to be the hottest topic, but research on battery materials, phosphors and catalysts are also (or should be) strongly considered.

Tribology and Mechanical Components Branch Overview

NASA Technical Reports Server (NTRS)

Handschuh, Robert F.

2010-01-01

An overview of NASA Glenn Research Center's Tribology & Mechanical Components Branch is provided. Work in space mechanisms, seals, oil-free turbomachinery, and mechanical components is presented. An overview of current research for these technology areas is contained in this overview.

Risk Factor Assessment Branch (RFAB)

Cancer.gov

The Risk Factor Assessment Branch (RFAB) focuses on the development, evaluation, and dissemination of high-quality risk factor metrics, methods, tools, technologies, and resources for use across the cancer research continuum, and the assessment of cancer-related risk factors in the population.

Cost Utility Analysis of Cervical Therapeutic Medial Branch Blocks in Managing Chronic Neck Pain

PubMed Central

Manchikanti, Laxmaiah; Pampati, Vidyasagar; Kaye, Alan D.; Hirsch, Joshua A.

2017-01-01

Background:Controlled diagnostic studies have established the prevalence of cervical facet joint pain to range from 36% to 67% based on the criterion standard of ≥ 80% pain relief. Treatment of cervical facet joint pain has been described with Level II evidence of effectiveness for therapeutic facet joint nerve blocks and radiofrequency neurotomy and with no significant evidence for intraarticular injections. However, there have not been any cost effectiveness or cost utility analysis studies performed in managing chronic neck pain with or without headaches with cervical facet joint interventions. Study Design:Cost utility analysis based on the results of a double-blind, randomized, controlled trial of cervical therapeutic medial branch blocks in managing chronic neck pain. Objectives:To assess cost utility of therapeutic cervical medial branch blocks in managing chronic neck pain. Methods: A randomized trial was conducted in a specialty referral private practice interventional pain management center in the United States. This trial assessed the clinical effectiveness of therapeutic cervical medial branch blocks with or without steroids for an established diagnosis of cervical facet joint pain by means of controlled diagnostic blocks. Cost utility analysis was performed with direct payment data for the procedures for a total of 120 patients over a period of 2 years from this trial based on reimbursement rates of 2016. The payment data provided direct procedural costs without inclusion of drug treatments. An additional 40% was added to procedural costs with multiplication of a factor of 1.67 to provide estimated total costs including direct and indirect costs, based on highly regarded surgical literature. Outcome measures included significant improvement defined as at least a 50% improvement with reduction in pain and disability status with a combined 50% or more reduction in pain in Neck Disability Index (NDI) scores. Results:The results showed direct procedural costs per one-year improvement in quality adjusted life year (QALY) of United States Dollar (USD) of $2,552, and overall costs of USD $4,261. Overall, each patient on average received 5.7 ± 2.2 procedures over a period of 2 years. Average significant improvement per procedure was 15.6 ± 12.3 weeks and average significant improvement in 2 years per patient was 86.0 ± 24.6 weeks. Limitations:The limitations of this cost utility analysis are that data are based on a single center evaluation. Only costs of therapeutic interventional procedures and physician visits were included, with extrapolation of indirect costs. Conclusion:The cost utility analysis of therapeutic cervical medial branch blocks in the treatment of chronic neck pain non-responsive to conservative management demonstrated clinical effectiveness and cost utility at USD $4,261 per one year of QALY. PMID:29200944

Cost Utility Analysis of Cervical Therapeutic Medial Branch Blocks in Managing Chronic Neck Pain.

PubMed

Manchikanti, Laxmaiah; Pampati, Vidyasagar; Kaye, Alan D; Hirsch, Joshua A

2017-01-01

Background: Controlled diagnostic studies have established the prevalence of cervical facet joint pain to range from 36% to 67% based on the criterion standard of ≥ 80% pain relief. Treatment of cervical facet joint pain has been described with Level II evidence of effectiveness for therapeutic facet joint nerve blocks and radiofrequency neurotomy and with no significant evidence for intraarticular injections. However, there have not been any cost effectiveness or cost utility analysis studies performed in managing chronic neck pain with or without headaches with cervical facet joint interventions. Study Design: Cost utility analysis based on the results of a double-blind, randomized, controlled trial of cervical therapeutic medial branch blocks in managing chronic neck pain. Objectives: To assess cost utility of therapeutic cervical medial branch blocks in managing chronic neck pain. Methods: A randomized trial was conducted in a specialty referral private practice interventional pain management center in the United States. This trial assessed the clinical effectiveness of therapeutic cervical medial branch blocks with or without steroids for an established diagnosis of cervical facet joint pain by means of controlled diagnostic blocks. Cost utility analysis was performed with direct payment data for the procedures for a total of 120 patients over a period of 2 years from this trial based on reimbursement rates of 2016. The payment data provided direct procedural costs without inclusion of drug treatments. An additional 40% was added to procedural costs with multiplication of a factor of 1.67 to provide estimated total costs including direct and indirect costs, based on highly regarded surgical literature. Outcome measures included significant improvement defined as at least a 50% improvement with reduction in pain and disability status with a combined 50% or more reduction in pain in Neck Disability Index (NDI) scores. Results: The results showed direct procedural costs per one-year improvement in quality adjusted life year (QALY) of United States Dollar (USD) of $2,552, and overall costs of USD $4,261. Overall, each patient on average received 5.7 ± 2.2 procedures over a period of 2 years. Average significant improvement per procedure was 15.6 ± 12.3 weeks and average significant improvement in 2 years per patient was 86.0 ± 24.6 weeks. Limitations: The limitations of this cost utility analysis are that data are based on a single center evaluation. Only costs of therapeutic interventional procedures and physician visits were included, with extrapolation of indirect costs. Conclusion: The cost utility analysis of therapeutic cervical medial branch blocks in the treatment of chronic neck pain non-responsive to conservative management demonstrated clinical effectiveness and cost utility at USD $4,261 per one year of QALY.

Propulsion Controls and Health Management Research at NASA Glenn Research Center

NASA Technical Reports Server (NTRS)

Garg, Sanjay

2002-01-01

With the increased emphasis on aircraft safety, enhanced performance and affordability, and the need to reduce the environmental impact of aircraft, there are many new challenges being faced by the designers of aircraft propulsion systems. The Controls and Dynamics Technology Branch at NASA Glenn Research Center (GRC) in Cleveland, Ohio, is leading and participating in various projects in partnership with the U.S. aerospace industry and academia to develop advanced controls and health management technologies that will help meet these challenges. These technologies are being developed with a view towards making the concept of "Intelligent Engines" a reality. The major research activities of the Controls and Dynamics Technology Branch are described in the following.

Compressor Research Facility F100 High Pressure Compressor Inlet Total Pressure and Swirl Profile Simulation.

DTIC Science & Technology

1984-10-01

SECTION I INTRODUCTION 1. GENERAL -.The F100 gas turbine engine currently powers the Air Force F-15 and F-16 aircraft . The compression section of this... Aircraft in designing these vanes and screens to provide the measured engine profiles. lata acquisition system was defined and transported to Pratt and...WILLIAM W. COEHVRWALKER H. MITCHELL Compressor Test Group Chief, Technology Branch Technology Branch Turbine Engine Division Turbine Engine Division

Regulation of adipose branched-chain amin acid catabolism enzyme expression and cross-adipose amino acid flux in human obesity

USDA-ARS?s Scientific Manuscript database

Elevated blood branched-chain amin acids (BCAA)are often assoicated with insulin resistance and type2 diabetes, which might result from a reduced cellular utilization and/or incomplete BCAA oxidation. White adipose tissue (WAT) has become appreciated as a potential player in whole body BCAA metaboli...

Regulation of adipose branched chain amino acid catabolism enzyme expression and cross-adipose amino acid flux in human obesity

USDA-ARS?s Scientific Manuscript database

Elevated blood branched chain amino acids (BCAA) are often associated with insulin resistance and type 2 diabetes. One possibility is that under these conditions there is a reduced cellular utilization and/or lower complete oxidation of BCAAs. White adipose tissue (WAT) has become appreciated as a...

Examining Social Studies Teachers' Views on Branch Teachers' Committee Meetings

ERIC Educational Resources Information Center

Kilcan, Bahadir; Çepni, Osman; Kilinç, Ali Çagatay

2018-01-01

The purpose of this study is to determine the views of social studies teachers on branch teachers' committee meetings (BTCM). This study utilized a qualitative method, phenomenological design. The sample of the research is composed of 16 teachers working in public secondary schools in the central district of Karabük province during the spring…

PUBLICATIONS - AIR POLLUTION PREVENTION AND CONTROL TECHNOLOGY

EPA Science Inventory

The Air Pollution Prevention and Control Division (APPCD)publishes highly scientific and technical information developed through its four research branches. A list of key publications produced by the individual branches can be viewed by visiting the website for the respective bra...

GREENHOUSE GASES (ATMOSPHERIC PROTECTION BRANCH, AIR POLLUTION PREVENTION AND CONTROL DIVISION, NRMRL)

EPA Science Inventory

Greenhouse gas (GHG) emissions are projected for various scenarios and the most appropriate approaches and technologies for mitigation are identified by NRMRL's Air Pollution Prevention and Control Division's Atmospheric Protection Branch (APB). These methods contribute to reduct...

LOW-GLOBAL-WARMING CHEMICALS AND REFRIGERANT TECHNOLOGIES (ATMOSPHERIC PROTECTION BRANCH, APPCD, NRMRL)

EPA Science Inventory

The Atmospheric Protection Branch's Refrigeration Applications Laboratory has the capability to test several types of refrigeration equipment with various refrigerants. Refrigeration compressors are tested according to the ANSI/ASHRAE 23-1993 Test Standard and under various oper...

4D Biofabrication of Branching Multicellular Structures: A Morphogenesis Simulation Based on Turing’s Reaction-Diffusion Dynamics

NASA Astrophysics Data System (ADS)

Zhu, Xiaolu; Yang, Hao

2017-12-01

The recently emerged four-dimensional (4D) biofabrication technique aims to create dynamic three-dimensional (3D) biological structures that can transform their shapes or functionalities with time when an external stimulus is imposed or when cell postprinting self-assembly occurs. The evolution of 3D pattern of branching geometry via self-assembly of cells is critical for 4D biofabrication of artificial organs or tissues with branched geometry. However, it is still unclear that how the formation and evolution of these branching pattern are biologically encoded. We study the 4D fabrication of lung branching structures utilizing a simulation model on the reaction-diffusion mechanism, which is established using partial differential equations of four variables, describing the reaction and diffusion process of morphogens with time during the development process of lung branching. The simulation results present the forming process of 3D branching pattern, and also interpret the behaviors of side branching and tip splitting as the stalk growing, through 3D visualization of numerical simulation.

7 CFR 91.9 - How to make an application.

Code of Federal Regulations, 2010 CFR

2010-01-01

... Science and Technology laboratory where the service is provided, or by contacting the Technical Services Branch Chief at Science and Technology Headquarters, Washington, DC. A list of the Science and Technology...

7 CFR 91.9 - How to make an application.

Code of Federal Regulations, 2013 CFR

2013-01-01

... Science and Technology laboratory where the service is provided, or by contacting the Technical Services Branch Chief at Science and Technology Headquarters, Washington, DC. A list of the Science and Technology...

7 CFR 91.9 - How to make an application.

Code of Federal Regulations, 2012 CFR

2012-01-01

... Science and Technology laboratory where the service is provided, or by contacting the Technical Services Branch Chief at Science and Technology Headquarters, Washington, DC. A list of the Science and Technology...

7 CFR 91.9 - How to make an application.

Code of Federal Regulations, 2011 CFR

2011-01-01

... Science and Technology laboratory where the service is provided, or by contacting the Technical Services Branch Chief at Science and Technology Headquarters, Washington, DC. A list of the Science and Technology...

7 CFR 91.9 - How to make an application.

Code of Federal Regulations, 2014 CFR

2014-01-01

... Science and Technology laboratory where the service is provided, or by contacting the Technical Services Branch Chief at Science and Technology Headquarters, Washington, DC. A list of the Science and Technology...

Metabolomic Footprints of Lethal Versus Indolent Prostate Cancer

DTIC Science & Technology

2013-10-01

along this line of research. This technology has identified a clear metabolic profiling of branch chain amino acids for risk of future pancreatic...mortality. The manuscript has been submitted to JNCI. c. Elevation of circulating branched - chain amino acids is an early event in human pancreatic...elevated plasma levels of branched - chain amino acids (BCAAs) are associated with a greater than twofold increased risk of future pancreatic cancer

[The Engineering and Technical Services Directorate at the Glenn Research Center

NASA Technical Reports Server (NTRS)

Moon, James

2004-01-01

My name is James Moon and I am a senior at Tennessee State University where my major is Aeronautical and Industrial Technology with a concentration in industrial electronics. I am currently serving my internship in the Engineering and Technical Services Directorate at the Glenn Research Center (GRC). The Engineering and Technical Service Directorate provides the services and infrastructure for the Glenn Research Center to take research concepts to reality. They provide a full range of integrated services including engineering, advanced prototyping and testing, facility management, and information technology for NASA, industry, and academia. Engineering and Technical Services contains the core knowledge in Information Technology (IT). This includes data systems and analysis, inter and intranet based systems design and data security. Including the design and development of embedded real-time s o h a r e applications for flight and supporting ground systems, Engineering and Technical Services provide a wide range of IT services and products specific to the Glenn Research Center research and engineering community. In the 7000 Directorate I work directly in the 7611 organization. This organization is known as the Aviation Environments Technical Branch. My mentor is Vincent Satterwhite who is also the Branch Chief of the Aviation Environments Technical Branch. In this branch, I serve as the Assistant program manager of the Engineering Technology Program. The Engineering Technology Program (ETP) is one of three components of the High School L.E.R.C.I.P. This is an Agency-sponsored, eight-week research-based apprenticeship program designed to attract traditionally underrepresented high school students that demonstrate an aptitude for and interest in mathematics, science, engineering, and technology.

76 FR 15984 - Statement of Organization, Functions, and Delegations of Authority

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-22

... entirety the title for the Knowledge Management Branch (CPGBB). within the Division of Laboratory Policy... Surveillance, Epidemiology and Laboratory Services (CP) and insert the Technology Management Branch (CPGBB... health leadership and management, public policy, program planning, implementation, and evaluation; (2...

Applying different independent component analysis algorithms and support vector regression for IT chain store sales forecasting.

PubMed

Dai, Wensheng; Wu, Jui-Yu; Lu, Chi-Jie

2014-01-01

Sales forecasting is one of the most important issues in managing information technology (IT) chain store sales since an IT chain store has many branches. Integrating feature extraction method and prediction tool, such as support vector regression (SVR), is a useful method for constructing an effective sales forecasting scheme. Independent component analysis (ICA) is a novel feature extraction technique and has been widely applied to deal with various forecasting problems. But, up to now, only the basic ICA method (i.e., temporal ICA model) was applied to sale forecasting problem. In this paper, we utilize three different ICA methods including spatial ICA (sICA), temporal ICA (tICA), and spatiotemporal ICA (stICA) to extract features from the sales data and compare their performance in sales forecasting of IT chain store. Experimental results from a real sales data show that the sales forecasting scheme by integrating stICA and SVR outperforms the comparison models in terms of forecasting error. The stICA is a promising tool for extracting effective features from branch sales data and the extracted features can improve the prediction performance of SVR for sales forecasting.

Applying Different Independent Component Analysis Algorithms and Support Vector Regression for IT Chain Store Sales Forecasting

PubMed Central

Dai, Wensheng

2014-01-01

Sales forecasting is one of the most important issues in managing information technology (IT) chain store sales since an IT chain store has many branches. Integrating feature extraction method and prediction tool, such as support vector regression (SVR), is a useful method for constructing an effective sales forecasting scheme. Independent component analysis (ICA) is a novel feature extraction technique and has been widely applied to deal with various forecasting problems. But, up to now, only the basic ICA method (i.e., temporal ICA model) was applied to sale forecasting problem. In this paper, we utilize three different ICA methods including spatial ICA (sICA), temporal ICA (tICA), and spatiotemporal ICA (stICA) to extract features from the sales data and compare their performance in sales forecasting of IT chain store. Experimental results from a real sales data show that the sales forecasting scheme by integrating stICA and SVR outperforms the comparison models in terms of forecasting error. The stICA is a promising tool for extracting effective features from branch sales data and the extracted features can improve the prediction performance of SVR for sales forecasting. PMID:25165740

NASA's ultraviolet astrophysics branch - The next decade

NASA Technical Reports Server (NTRS)

Welsh, Barry Y.; Kaplan, Michael

1992-01-01

We review some of the mission concepts currently being considered by NASA's Astrophysics Division to carry out future observations in the 100-3000 Angstrom region. Examples of possible future missions include UV and visible interferometric experiments, a next generation Space Telescope and lunar-based UV instrumentation. In order to match the science objectives of these future missions with new observational techniques, critical technology needs in the ultraviolet regime have been identified. Here we describe how NASA's Astrophysics Division Advanced Programs Branch is attempting to formulate an integrated technology plan called the 'Astrotech 21' program in order to provide the technology base for these astrophysics missions of the 21st century.

Theoretical studies of the transport properties in compound semiconductors

NASA Technical Reports Server (NTRS)

Segall, Benjamin

1994-01-01

This final report is an overview of the work done on Cooperative Agreement NCC 3-55 with the Solid State Technology Branch of the NASA-Lewis Research Center (LeRC). Over the period of time that the agreement was in effect, the principal investigator and, in the last three years, the co-principal investigator worked on a significant number of projects and interacted with members of the Solid State Technology (SST) branch in a number of different ways. For the purpose of this report, these efforts will be divided into five categories: 1) work directly with experimental electrical transport studies conducted by members of the SST branch; 2) theoretical work on electrical transport in compound semiconductors; 3) electronic structure calculations which are relevant to the electrical transport in polytypes of SiC and SiC-AlN alloys; 4) the electronic structure calculations of polar interfaces; and 5) consultative and supportive activities related to experiments and other studies carried out by SST branch members. Work in these categories is briefly discussed.

48 CFR 35.007 - Solicitations.

Code of Federal Regulations, 2014 CFR

2014-10-01

... offeror's experience; (5) Pertinent novel ideas in the specific branch of science and technology involved... in the specific field of science or technology involved. Cognizant technical personnel should...

48 CFR 35.007 - Solicitations.

Code of Federal Regulations, 2013 CFR

2013-10-01

... offeror's experience; (5) Pertinent novel ideas in the specific branch of science and technology involved... in the specific field of science or technology involved. Cognizant technical personnel should...

48 CFR 35.007 - Solicitations.

Code of Federal Regulations, 2012 CFR

2012-10-01

... offeror's experience; (5) Pertinent novel ideas in the specific branch of science and technology involved... in the specific field of science or technology involved. Cognizant technical personnel should...

Albumin expression distinguishes bile duct adenomas from metastatic adenocarcinoma.

PubMed

Moy, Andrea P; Arora, Kshitij; Deshpande, Vikram

2016-09-01

Bile duct adenomas may be difficult to distinguish from metastatic carcinomas, particularly well-differentiated pancreatic ductal adenocarcinoma. Prior studies have evaluated the utility of various immunohistochemical markers, although these markers are notable for low sensitivity and/or specificity. The aim of this study was to investigate the utility of albumin and BRAFV600E expression in distinguishing between metastatic pancreatic adenocarcinoma and bile duct adenoma. We studied 26 bile duct adenomas, three bile duct hamartomas, and 158 pancreatic ductal adenocarcinomas. Branched-chain in-situ hybridization (bISH) for albumin was performed; bISH is based on the branched DNA technology, wherein signal amplification is achieved via a series of sequential steps. Additionally, BRAFV600E immunohistochemistry (IHC) was performed on a subset of cases. Twenty-three of 25 (92%) bile duct adenomas were positive for albumin; 18 (72%) showed diffuse staining, and five showed focal staining (20%), including two challenging examples. Two bile duct hamartomas also stained positively. All pancreatic adenocarcinomas were negative for albumin. Seven of 16 (44%) bile duct adenomas and five of 106 (5%) pancreatic ductal adenocarcinomas were positive for BRAFV600E by IHC. The sensitivity and specificity of expression of albumin, as detected by bISH, for distinguishing bile duct adenomas from metastatic pancreatic adenocarcinomas were 92% and 100%, respectively; the sensitivity and specificity of BRAFV600E IHC for distinguishing bile duct adenomas from metastatic pancreatic adenocarcinomas were 43.8% and 95.3%, respectively. Diagnostically challenging examples of bile duct adenoma may be distinguished from metastatic pancreatic adenocarcinoma by the use of albumin bISH. © 2016 John Wiley & Sons Ltd.

Teaching Machines, Programming, Computers, and Instructional Technology: The Roots of Performance Technology.

ERIC Educational Resources Information Center

Deutsch, William

1992-01-01

Reviews the history of the development of the field of performance technology. Highlights include early teaching machines, instructional technology, learning theory, programed instruction, the systems approach, needs assessment, branching versus linear program formats, programing languages, and computer-assisted instruction. (LRW)

Improved synthesis and characterization of saturated branched-chain fatty acid isomers

USDA-ARS?s Scientific Manuscript database

The development of viable technologies for producing green products from renewable fats and oils is highly desirable since such materials can serve as replacements for non-renewable and poorly biodegradable petroleum-based products. Mixtures of saturated branched-chain fatty acid isomers (sbc-FAs),...

Ultrasensitive Electrochemical Detection of mRNA Using Branched DNA Amplifiers

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

Mao, Xun; Liu, Guodong; Wang, Shengfu

2008-11-01

We describe here an ultrasensitive electrochemical detection of m RNA protocol without RNA purification and PCR amplification. The new m RNA electrical detection capability is coupled to the amplification feature of branched DNA (bDNA) technology and with the nagnetic beads based electrochemical bioassay.

The sensory-motor bridge neurorraphy: an anatomic study of feasibility between sensory branch of the musculocutaneous nerve and deep branch of the radial nerve.

PubMed

Goubier, Jean-Noel; Teboul, Frédéric

2011-05-01

Restoring elbow flexion remains the first step in the management of total palsy of the brachial plexus. Non avulsed upper roots may be grafted on the musculocutaneous nerve. When this nerve is entirely grafted, some motor fibres regenerate within the sensory fibres quota. Aiming potential utilization of these lost motor fibres, we attempted suturing the sensory branch of the musculocutaneous nerve onto the deep branch of the radial nerve. The objective of our study was to assess the anatomic feasibility of such direct suturing of the terminal sensory branch of the musculocutaneous nerve onto the deep branch of the radial nerve. The study was carried out with 10 upper limbs from fresh cadavers. The sensory branch of the musculocutaneous muscle was dissected right to its division. The motor branch of the radial nerve was identified and dissected as proximally as possible into the radial nerve. Then, the distance separating the two nerves was measured so as to assess whether direct neurorraphy of the two branches was feasible. The excessive distance between the two branches averaged 6 mm (1-13 mm). Thus, direct neurorraphy of the sensory branch of the musculocutaneous nerve and the deep branch of the radial nerve was possible. When the whole musculocutaneous nerve is grafted, some of its motor fibres are lost amongst the sensory fibres (cutaneous lateral antebrachial nerve). By suturing this sensory branch onto the deep branch of the radial nerve, "lost" fibres may be retrieved, resulting in restoration of digital extension. Copyright © 2011 Wiley-Liss, Inc.

Publication search and retrieval system

USGS Publications Warehouse

Winget, Elizabeth A.

1981-01-01

The publication search and retrieval system of the Branch of Atlantic-Gulf of Mexico Geology, U.S. Geological Survey, Woods Hole, Mass., is a procedure for listing and describing branch-sponsored publications. It is designed for maintenance and retrieval by those having limited knowledge of computer languages and programs. Because this branch currently utilizes the Hewlett-Packard HP-1000 computer with RTE-IVB operating system, database entry and maintenance is performed in accordance with the TE-IVB Terminal User’s Reference Manual (Hewlett-Packard Company, 1980) and within the constraints of GRASP (Bowen and Botbol, 1975) and WOLF (Evenden, 1978).

Properties of the branched-chain 2-hydroxy acid/2-oxo acid shuttle in mouse spermatozoa.

PubMed

Coronel, C E; Gallina, F G; Gerez de Burgos, N M; Burgos, C; Blanco, A

1986-05-01

Operation of the branched-chain 2-hydroxy acid/2-oxo acid shuttle for the transfer of reducing equivalents in mitochondria of mouse spermatozoa was studied in vitro in reconstituted systems. Results show that the branched-chain 2-oxo acids within the mitochondria are offered several metabolic pathways. (a) Decarboxylation: mouse sperm mitochondria possess high branched-chain 2-oxo acid decarboxylase activity. (b) Recycling to the cytosol by using a transport system which can be inhibited by alpha-cyano-3-hydroxycinnamate and pH 6.8. (c) Transamination to the corresponding amino acids: experiments presented indicate that leucine formed from 4-methyl-2-oxopentanoate may pass to the external phase, re-initiating the cycle. These two last possibilities would allow autocatalytic operation of the shuttle. The branched-chain 2-hydroxy acids apparently do not utilize the monocarboxylate carrier to penetrate the mitochondria.

European Teachers' Technological Pedagogical Content Knowledge (TPCK) and Educational Use of Web Technologies

ERIC Educational Resources Information Center

Baris, Mehmet Fatih

2015-01-01

Several studies have been conducted on technological, pedagogical content knowledge and web-based education. In this study, the Technological Pedagogical Content Knowledge and Educational Use of Web Technologies (TPCK-W) were analyzed in addition to the self-efficacy and attitudes of 33 teachers from eight different branches carrying out their…

Phylogenetic relationships of Hemiptera inferred from mitochondrial and nuclear genes.

PubMed

Song, Nan; Li, Hu; Cai, Wanzhi; Yan, Fengming; Wang, Jianyun; Song, Fan

2016-11-01

Here, we reconstructed the Hemiptera phylogeny based on the expanded mitochondrial protein-coding genes and the nuclear 18S rRNA gene, separately. The differential rates of change across lineages may associate with long-branch attraction (LBA) effect and result in conflicting estimates of phylogeny from different types of data. To reduce the potential effects of systematic biases on inferences of topology, various data coding schemes, site removal method, and different algorithms were utilized in phylogenetic reconstruction. We show that the outgroups Phthiraptera, Thysanoptera, and the ingroup Sternorrhyncha share similar base composition, and exhibit "long branches" relative to other hemipterans. Thus, the long-branch attraction between these groups is suspected to cause the failure of recovering Hemiptera under the homogeneous model. In contrast, a monophyletic Hemiptera is supported when heterogeneous model is utilized in the analysis. Although higher level phylogenetic relationships within Hemiptera remain to be answered, consensus between analyses is beginning to converge on a stable phylogeny.

75 FR 78209 - Notice of Request for Revision of a Currently Approved Information Collection

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-15

... wealth and job opportunities in Rural Areas and among individuals living in such areas through the... from Cheryl Thompson, Regulations and Paperwork Management Branch, Support Services Division at (202... information technology. Comments may be sent to Cheryl Thompson, Regulations and Paperwork Management Branch...

75 FR 17120 - Notice of Request for an Extension of a Currently Approved Information Collection

Federal Register 2010, 2011, 2012, 2013, 2014

2010-04-05

... approved information collection in support of the Regulations for Voluntary Grading of Poultry Products and....regulations.gov or to David Bowden, Jr., Chief, Standards, Promotion, & Technology Branch; Poultry Programs... Branch; Poultry Programs, AMS, U.S. Department of Agriculture; 1400 Independence Avenue, SW., Stop 0259...

Fiber optic control system integration

NASA Technical Reports Server (NTRS)

Poppel, G. L.; Glasheen, W. M.; Russell, J. C.

1987-01-01

A total fiber optic, integrated propulsion/flight control system concept for advanced fighter aircraft is presented. Fiber optic technology pertaining to this system is identified and evaluated for application readiness. A fiber optic sensor vendor survey was completed, and the results are reported. The advantages of centralized/direct architecture are reviewed, and the concept of the protocol branch is explained. Preliminary protocol branch selections are made based on the F-18/F404 application. Concepts for new optical tools are described. Development plans for the optical technology and the described system are included.

ISS Operations Cost Reductions Through Automation of Real-Time Planning Tasks

NASA Technical Reports Server (NTRS)

Hall, Timothy A.; Clancey, William J.; McDonald, Aaron; Toschlog, Jason; Tucker, Tyson; Khan, Ahmed; Madrid, Steven (Eric)

2011-01-01

In 2007 the Johnson Space Center s Mission Operations Directorate (MOD) management team challenged their organizations to find ways to reduce the cost of operations for supporting the International Space Station (ISS) in the Mission Control Center (MCC). Each MOD organization was asked to define and execute projects that would help them attain cost reductions by 2012. The MOD Operations Division Flight Planning Branch responded to this challenge by launching several software automation projects that would allow them to greatly improve console operations and reduce ISS console staffing and intern reduce operating costs. These tasks ranged from improving the management and integration mission plan changes, to automating the uploading and downloading of information to and from the ISS and the associated ground complex tasks that required multiple decision points. The software solutions leveraged several different technologies including customized web applications and implementation of industry standard web services architecture; as well as engaging a previously TRL 4-5 technology developed by Ames Research Center (ARC) that utilized an intelligent agent-based system to manage and automate file traffic flow, archive data, and generate console logs. These projects to date have allowed the MOD Operations organization to remove one full time (7 x 24 x 365) ISS console position in 2010; with the goal of eliminating a second full time ISS console support position by 2012. The team will also reduce one long range planning console position by 2014. When complete, these Flight Planning Branch projects will account for the elimination of 3 console positions and a reduction in staffing of 11 engineering personnel (EP) for ISS.

Side-branch technique for difficult guidewire placement in coronary bifurcation lesion.

PubMed

He, Xingwei; Gao, Bo; Liu, Yujian; Li, Zhuxi; Zeng, Hesong

2016-01-01

Despite tremendous advances in technology and skills, percutaneous coronary intervention (PCI) of bifurcation lesion (BL) remains a particular challenge for the interventionalist. During bifurcation PCI, safe guidewire placement in the main branch (MB) and the side branch (SB) is the first step for successful procedure. However, in certain cases, the complex pattern of vessel anatomy and the mix of plaque distribution may make target vessel wiring highly challenging. Therefore, specific techniques are required for solving this problem. Hereby, we describe a new use of side-branch technique for difficult guidewire placement in BL. Copyright © 2015 Elsevier Inc. All rights reserved.

Development of a Multi-bus, Multi-source Reconfigurable Stirling Radioisotope Power System Test Bed

NASA Technical Reports Server (NTRS)

Coleman, Anthony S.

2004-01-01

The National Aeronautics and Space Administration (NASA) has typically used Radioisotope Thermoelectric Generators (RTG) as their source of electric power for deep space missions. A more efficient and potentially more cost effective alternative to the RTG, the high efficiency 110 watt Stirling Radioisotope Generator 110 (SRG110) is being developed by the Department of Energy (DOE), Lockheed Martin (LM), Stirling Technology Company (STC) and NASA Glenn Research Center (GRC). The SRG110 consists of two Stirling convertors (Stirling Engine and Linear Alternator) in a dual-opposed configuration, and two General Purpose Heat Source (GPHS) modules. Although Stirling convertors have been successfully operated as a power source for the utility grid and as a stand-alone portable generator, demonstration of the technology required to interconnect two Stirling convertors for a spacecraft power system has not been attempted. NASA GRC is developing a Power System Test Bed (PSTB) to evaluate the performance of a Stirling convertor in an integrated electrical power system application. This paper will describe the status of the PSTB and on-going activities pertaining to the PSTB in the NASA Thermal-Energy Conversion Branch of the Power and On-Board Propulsion Technology Division.

The Utilization of Evaluation Research in Litigation.

ERIC Educational Resources Information Center

Saks, Michael J.

1980-01-01

The judicial branches of government have unique needs for evaluative information and limited resources; this must be recognized in order to increase the utilization of applied social research by courts and lawyers. (Available from: Jossey-Bass, Inc., 433 California St., San Francisco, CA 94104, single issue, $6.95.) (GDC)

75 FR 58389 - Federal Acquisition Regulation; Information Collection; American Recovery and Reinvestment Act...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-24

... proper performance of functions of the FAR, and whether it will have practical utility; whether our... and methodology; ways to enhance the quality, utility, and clarity of the information to be collected... INFORMATION CONTACT: Mr. Ernest Woodson, Procurement Analyst, Contract Policy Branch, at telephone (202) 501...

Coating Processes Boost Performance of Solar Cells

NASA Technical Reports Server (NTRS)

2012-01-01

NASA currently has spacecraft orbiting Mercury (MESSENGER), imaging the asteroid Vesta (Dawn), roaming the red plains of Mars (the Opportunity rover), and providing a laboratory for humans to advance scientific research in space (the International Space Station, or ISS). The heart of the technology that powers those missions and many others can be held in the palm of your hand - the solar cell. Solar, or photovoltaic (PV), cells are what make up the panels and arrays that draw on the Sun s light to generate electricity for everything from the Hubble Space Telescope s imaging equipment to the life support systems for the ISS. To enable NASA spacecraft to utilize the Sun s energy for exploring destinations as distant as Jupiter, the Agency has invested significant research into improving solar cell design and efficiency. Glenn Research Center has been a national leader in advancing PV technology. The Center s Photovoltaic and Power Technologies Branch has conducted numerous experiments aimed at developing lighter, more efficient solar cells that are less expensive to manufacture. Initiatives like the Forward Technology Solar Cell Experiments I and II in which PV cells developed by NASA and private industry were mounted outside the ISS have tested how various solar technologies perform in the harsh conditions of space. While NASA seeks to improve solar cells for space applications, the results are returning to Earth to benefit the solar energy industry.

Building 5 Manufacturing Branch. Explore@NASAGoddard celebrates

NASA Image and Video Library

2015-09-26

Building 5 Manufacturing Branch. Explore@NASAGoddard celebrates the 25th anniversary of the launch of the Hubble Space Telescope. All areas of Goddard’s research – Earth science, heliophysics, planetary science, astrophysics, and engineering and technology – will be presented, as each discipline plays a critical part in NASA's ongoing journey to reach new heights.

RIAD visual imaging branch assessment

NASA Technical Reports Server (NTRS)

Beam, Sherilee F.

1993-01-01

Every year the demand to visualize research efforts increases. The visualization provides the means to effectively analyze data and present the results. The technology support for visualization is constantly changing, improving, and being made available to users everywhere. As such, many researchers are entering into the practice of doing their own visualization in house - sometimes successfully, sometimes not. In an effort to keep pace with the visualization needs of researchers, the Visual Imaging Branch of the Research, Information, and Applications Division at NASA Langley Research Center has conducted an investigation into the current status of imaging technology and imaging production throughout the various research branches at the center. This investigation will allow the branch to evaluate its current resources and personnel in an effort to identify future directions for meeting the needs of the researchers at the center. The investigation team, which consisted of the ASEE fellow, the head of the video section, and the head of the photo section, developed an interview format that could be accomplished during a short interview period with researchers, and yet still provide adequate statistics about items such as in-house equipment and usage.

West Europe Report, Science and Technology

DTIC Science & Technology

1986-01-14

companies of those branches where the biorevolution already struck before the turn of the century — chemistry and pharmacology primarily, but also food ...to life," says French Minister of Science and Technology Hubert Curien contentedly. Since April, when the Franch plan for European technology was

The Philosophy of Science and Technology in China: Political and Ideological Influences

NASA Astrophysics Data System (ADS)

Guo, Yuanlin

2014-09-01

In China, the philosophy of science and technology (PST) is derived from "Dialectics of Nature" (DN), which is based on Engels' unfinished book Dialektik der Natur. DN as a political ideology provides political guidance for scientists and engineers. Therefore, since 1981, "Introduction to Dialectics of Nature" (IDN) has been an obligatory course for master's degree students who study natural science or technology. In 1987, DN was renamed PST by the Chinese government in order to communicate and do research. The IDN teachers constitute most of the scholars who research PST. Nowadays, in China, PST includes philosophy of nature, philosophy of science, philosophy of technology, sociology of science, sociology of technology, "science, technology and society," history of science, history of technology, management of science, and management of technology due to having too many IDN teachers. In fact, it is neither a branch of philosophy, nor a subject. The number of the IDN teachers has been increasing since 1981, which makes PST a miscellaneous collection of many branches or subjects. Finally, PST is facing two new challenges: the reduction of IDN and academic corruption.

76 FR 41769 - Information Collection; Submission for OMB Review, Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-15

... technological collection techniques or other forms of information technology, e.g., permitting electronic...): None. Dated: July 11, 2011. Maggie Taylor-Coates, Chief, Trust Operations Branch. [FR Doc. 2011-17823...

[Spectral navigation technology and its application in positioning the fruits of fruit trees].

PubMed

Yu, Xiao-Lei; Zhao, Zhi-Min

2010-03-01

An innovative technology of spectral navigation is presented in the present paper. This new method adopts reflectance spectra of fruits, leaves and branches as one of the key navigation parameters and positions the fruits of fruit trees relying on the diversity of spectral characteristics. The research results show that the distinct smoothness as effect is available in the spectrum of leaves of fruit trees. On the other hand, gradual increasing as the trend is an important feature in the spectrum of branches of fruit trees while the spectrum of fruit fluctuates. In addition, the peak diversity of reflectance rate between fruits and leaves of fruit trees is reached at 850 nm of wavelength. So the limit value can be designed at this wavelength in order to distinguish fruits and leaves. The method introduced here can not only quickly distinguish fruits, leaves and branches, but also avoid the effects of surroundings. Compared with the traditional navigation systems based on machine vision, there are still some special and unique features in the field of positioning the fruits of fruit trees using spectral navigation technology.

A multimedia adult literacy program: Combining NASA technology, instructional design theory, and authentic literacy concepts

NASA Technical Reports Server (NTRS)

Willis, Jerry W.

1993-01-01

For a number of years, the Software Technology Branch of the Information Systems Directorate has been involved in the application of cutting edge hardware and software technologies to instructional tasks related to NASA projects. The branch has developed intelligent computer aided training shells, instructional applications of virtual reality and multimedia, and computer-based instructional packages that use fuzzy logic for both instructional and diagnostic decision making. One outcome of the work on space-related technology-supported instruction has been the creation of a significant pool of human talent in the branch with current expertise on the cutting edges of instructional technologies. When the human talent is combined with advanced technologies for graphics, sound, video, CD-ROM, and high speed computing, the result is a powerful research and development group that both contributes to the applied foundations of instructional technology and creates effective instructional packages that take advantage of a range of advanced technologies. Several branch projects are currently underway that combine NASA-developed expertise to significant instructional problems in public education. The branch, for example, has developed intelligent computer aided software to help high school students learn physics and staff are currently working on a project to produce educational software for young children with language deficits. This report deals with another project, the adult literacy tutor. Unfortunately, while there are a number of computer-based instructional packages available for adult literacy instruction, most of them are based on the same instructional models that failed these students when they were in school. The teacher-centered, discrete skill and drill-oriented, instructional strategies, even when they are supported by color computer graphics and animation, that form the foundation for most of the computer-based literacy packages currently on the market may not be the most effective or most desirable way to use computer technology in literacy programs. This project is developing a series of instructional packages that are based on a different instructional model - authentic instruction. The instructional development model used to create these packages is also different. Instead of using the traditional five stage linear, sequential model based on behavioral learning theory, the project uses the recursive, reflective design and development model (R2D2) that is based on cognitive learning theory, particularly the social constructivism of Vygotsky, and an epistemology based on critical theory. Using alternative instructional and instructional development theories, the result of the summer faculty fellowship is LiteraCity, a multimedia adult literacy instructional package that is a simulation of finding and applying for a job. The program, which is about 120 megabytes, is distributed on CD-ROM.

Effects of dietary excesses of branched-chain amino acids on the metabolism and tissue composition of lake trout (Salvelinus namaycush)

USGS Publications Warehouse

Hughes, S.G.; Rumsey, G.L.; Nesheim, M.C.

1984-01-01

1. Excesses of either leucine, isoleucine or valine were fed in separate experiments to determine if the branched-chain amino acid antagonism reported in other animals occur in trout (Salvelinus namaycush).2. Parameters measured include growth rate, feed utilization efficiency, plasma and muscle-free amino acids, carcass composition and branched-chain amino acid aminotransferase.3. Dietary excesses of leucine or isoleucine caused an increase in the valine requirement.4. The inability of leucine and isoleucine supplementations to ameliorate the effects of excess dietary valine are interpreted as a valine toxicity rather than an antagonism.

The role of the Department of Homeland Security, Science and Technology Directorate in the development of vaccines and diagnostics for Transboundary Animal Diseases.

PubMed

Colby, M; Coats, M; Brake, D; Fine, J

2013-01-01

The development of countermeasures to support an effective response to Transboundary Animal Diseases (TAD) poses a challenge on a global scale and necessitates the coordinated involvement of scientists from government, industry and academia, as well as regulatory entities. The Agricultural Defense Branch under the Chemical and Biological Defense Division (CBD) of the Department of Homeland Security (DHS), Science and Technology Directorate (S&T) supports this important mission within the United States. This article provides an overview of the Agricultural Defense Branch's vaccine and diagnostic TAD project.

Countermeasures and Functional Testing in Head-Down Tilt Bed Rest (CFT 70)

NASA Technical Reports Server (NTRS)

Cromwell, Ronita L.

2013-01-01

This 70-day bed rest campaign was comprised of 6 integrated studies and conducted at the NASA Flight Analogs Research Unit (FARU). The FARU is located at the University of Texas Medical Branch, Galveston, Texas and is a satellite unit of the Institute for Translational Sciences - Clinical Research Center. This presentation will describe the FARU, discuss the utility of the bed rest platform for use in these studies, and introduce the studies that participated in the CFT 70 bed rest campaign. Information in this presentation will serve as the background for subsequent talks from each individual study. Individual study presentations will discuss preliminary results from completed subjects. Studies included in CFT70 were: ? Physiological Factors Contributing to Post Flight Changes in Functional Performance. J. Bloomberg, NASA ? Integrated Resistance and Aerobic Training Study. L. Ploutz-Snyder, USRA ? Testosterone Supplementation as a Countermeasure Against Musculoskeletal losses during Space Exploration. R. Urban, University of Texas Medical Branch ? Effects of Retronasal Smelling, Variety and Choice on Appetite & Satiety. J. Hunter, Cornell University ? AD ASTRA: Automated Detection of Attitudes and States through Transaction Recordings Analysis. C. Miller, Smart Information Flow Technologies, LLC ? Bed Rest as a Spaceflight Analog to Study Neuro-cognitive Changes: Extent, Longevity, and Neural Bases. R. Seidler, University of Michigan

Characterization of starch nanoparticles

NASA Astrophysics Data System (ADS)

Szymońska, J.; Targosz-Korecka, M.; Krok, F.

2009-01-01

Nanomaterials already attract great interest because of their potential applications in technology, food science and medicine. Biomaterials are biodegradable and quite abundant in nature, so they are favoured over synthetic polymer based materials. Starch as a nontoxic, cheap and renewable raw material is particularly suitable for preparation of nanoparticles. In the paper, the structure and some physicochemical properties of potato and cassava starch particles of the size between 50 to 100 nm, obtained by mechanical treatment of native starch, were presented. We demonstrated, with the aim of the Scanning Electron Microscopy (SEM) and the non-contact Atomic Force Microscopy (nc-AFM), that the shape and dimensions of the obtained nanoparticles both potato and cassava starch fit the blocklets - previously proposed as basic structural features of native starch granules. This observation was supported by aqueous solubility and swelling power of the particles as well as their iodine binding capacity similar to those for amylopectin-type short branched polysaccharide species. Obtained results indicated that glycosidic bonds of the branch linkage points in the granule amorphous lamellae might be broken during the applied mechanical treatment. Thus the released amylopectin clusters could escape out of the granules. The starch nanoparticles, for their properties qualitatively different from those of native starch granules, could be utilized in new applications.

Aerodynamic Performance Predictions of Single and Twin Jet Afterbodies

NASA Technical Reports Server (NTRS)

Carlson, John R.; Pao, S. Paul; Abdol-Hamid, Khaled S.; Jones, William T.

1995-01-01

The multiblock three-dimensional Navier-Stokes method PAB3D was utilized by the Component Integration Branch (formerly Propulsion Aerodynamics Branch) at the NASA-Langley Research Center in an international study sponsored by AGARD Working Group #17 for the assessment of the state-of-the-art of propulsion-airframe integration testing techniques and CFD prediction technologies. Three test geometries from ONERA involving fundamental flow physics and four geometries from NASA-LaRC involving realistic flow interactions of wing, body, tail, and jet plumes were chosen by the Working Group. An overview of results on four (1 ONERA and 3 LaRC) of the seven test cases is presented. External static pressures, integrated pressure drag and total drag were calculated for the Langley test cases and jet plume velocity profiles and turbulent viscous stresses were calculated for the ONERA test case. Only selected data from these calculations are presented in this paper. The complete data sets calculated by the participants will be presented in an AGARD summary report. Predicted surface static pressures compared favorably with experimental data for the Langley geometries. Predicted afterbody drag compared well with experiment. Predicted nozzle drag was typically low due to over-compression of the flow near the trailing edge. Total drag was typically high. Predicted jet plume quantities on the ONERA case compared generally well with data.

Quantitative Methods for Determining U.S. Air Force Crew Cushion Comfort

DTIC Science & Technology

2006-09-01

Directorate Biosciences and Protection Division Biomechanics Branch Wright Patterson AFB OH 45433-7947 Form Approved REPORT DOCUMENTATION PAGE OMB No...Division Biomechanics Branch Wright-Patterson AFB OH 45433-7947 9. SPONSORING I MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSOR/MONITOR’S...workstations were constructed utilizing ejection seat long-term flight. mockups and foot pedal assemblies modified to simulate the ACES II seat in the F-16

Perception of Classroom and Branch Teachers Working in Primary Schools towards In-Service Education

ERIC Educational Resources Information Center

Demir, Mehmet Kaan

2012-01-01

The need for in-service education for teachers is recognized by all who are concerned with improvement of school practice. A successful in-service education involves many different kinds of activities. This study aims to determine the perceptions of classroom and branch (social studies, science and technology, foreign language, physical education…

China Naval Modernization: Implications for U.S. Navy Capabilities - Background and Issues for Congress

DTIC Science & Technology

2013-07-05

learn how to effectively operate aircraft carriers than it took the U.S., the commander of the U.S. Navy’s Atlantic air arm, Rear Adm. Ted Branch said...Wednesday. “They will learn faster than we did and they will leverage our lessons,” Branch said during a panel at the at the EAST: Joint...advantage of starting with more modern technology but it’s still a tough nut to crack to learn how to do this business,” Branch said. “They still have

Kodiak: An Implementation Framework for Branch and Bound Algorithms

NASA Technical Reports Server (NTRS)

Smith, Andrew P.; Munoz, Cesar A.; Narkawicz, Anthony J.; Markevicius, Mantas

2015-01-01

Recursive branch and bound algorithms are often used to refine and isolate solutions to several classes of global optimization problems. A rigorous computation framework for the solution of systems of equations and inequalities involving nonlinear real arithmetic over hyper-rectangular variable and parameter domains is presented. It is derived from a generic branch and bound algorithm that has been formally verified, and utilizes self-validating enclosure methods, namely interval arithmetic and, for polynomials and rational functions, Bernstein expansion. Since bounds computed by these enclosure methods are sound, this approach may be used reliably in software verification tools. Advantage is taken of the partial derivatives of the constraint functions involved in the system, firstly to reduce the branching factor by the use of bisection heuristics and secondly to permit the computation of bifurcation sets for systems of ordinary differential equations. The associated software development, Kodiak, is presented, along with examples of three different branch and bound problem types it implements.

[Reseach development of vascular anatomy and preoperative design technology of anterolateral thigh flap].

PubMed

Duan, Jiazhang; He, Xiaoqing; Xu, Yongqing

2016-07-08

?To summarize the present status and progress of vascular anatomy and preoperative design technology of the anterolateral thigh flap. ?The relative researches focused on vascular anatomy and preoperative design technology of the anterolateral thigh flap were extensively reviewed, analyzed, and summarized. ?Vascular anatomy of the anterolateral thigh flap has been reported by numerous researchers, but perforators' location, origin, course, and the variation of the quantity have been emphasized. Meanwhile, the variation of descending branch, oblique branch, and lateral circumflex femoral artery has also been widely reported. Preoperative design technology of the anterolateral thigh flap includes hand-held Doppler, Color Doppler, CT angiography (CTA), magnetic resonance angiography, digital subtraction angiography, and digital technology, among which the hand-held Doppler is most widely used, and CTA is the most ideal, but each method has its own advantages and disadvantages. ?There is multiple variation of vascular anatomy of the anterolateral thigh flap. Though all kinds of preoperative design technologies can offer strong support to operation of anterolateral thigh flap, a simple, quick, precise, and noninvasive technology is the direction of further research.

The Development of Educational Technology.

ERIC Educational Resources Information Center

Sakamoto, Takashi

The degree to which the concepts of educational technolgoy are penetrating into educational practice in Japan is surveyed. Educational technology is defined as a branch of study in which the results of engineering techniques, information science, the natural sciences, the behavioral sciences and human technology are used to promote efficiency in…

A multi-omic future for microbiome studies

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

Jansson, Janet K.; Baker, Erin S.

2016-04-26

Microbes constitute about a third of the Earth’s biomass and play critical roles in sustaining life. While results from multiple sequence-based studies have illustrated the importance of microbial communities for human health and the environment, additional technological developments are still needed to gain more insight into their functions [1]. To date, the majority of sequencing studies have focused on the 16S rRNA gene as a phylogenetic marker. This approach has enabled exploration of microbial compositions in a range of sample types, while bypassing the need for cultivation. 16S rRNA gene sequencing has also enabled a vast majority of microorganisms nevermore » previously isolated in culture to be identified and placed into a phylogenetic context [2]. These technologies have been utilized to map the locations of microbes inhabiting various locations of the body [3]. Similarly, sequencing has been used to determine the identities and distributions of microorganisms inhabiting different ecosystems [4, 5], and efforts in single cell sequencing of the microbiome have helped fill in missing branches of the phylogenetic tree [6].« less

NASA Langley Research Center's Simulation-To-Flight Concept Accomplished through the Integration Laboratories of the Transport Research Facility

NASA Technical Reports Server (NTRS)

Martinez, Debbie; Davidson, Paul C.; Kenney, P. Sean; Hutchinson, Brian K.

2004-01-01

The Flight Simulation and Software Branch (FSSB) at NASA Langley Research Center (LaRC) maintains the unique national asset identified as the Transport Research Facility (TRF). The TRF is a group of facilities and integration laboratories utilized to support the LaRC's simulation-to-flight concept. This concept incorporates common software, hardware, and processes for both groundbased flight simulators and LaRC s B-757-200 flying laboratory identified as the Airborne Research Integrated Experiments System (ARIES). These assets provide Government, industry, and academia with an efficient way to develop and test new technology concepts to enhance the capacity, safety, and operational needs of the ever-changing national airspace system. The integration of the TRF enables a smooth continuous flow of the research from simulation to actual flight test.

Rational growth of branched nanowire heterostructures with synthetically encoded properties and function

PubMed Central

Jiang, Xiaocheng; Tian, Bozhi; Xiang, Jie; Qian, Fang; Zheng, Gengfeng; Wang, Hongtao; Mai, Liqiang; Lieber, Charles M.

2011-01-01

Branched nanostructures represent unique, 3D building blocks for the “bottom-up” paradigm of nanoscale science and technology. Here, we report a rational, multistep approach toward the general synthesis of 3D branched nanowire (NW) heterostructures. Single-crystalline semiconductor, including groups IV, III–V, and II–VI, and metal branches have been selectively grown on core or core/shell NW backbones, with the composition, morphology, and doping of core (core/shell) NWs and branch NWs well controlled during synthesis. Measurements made on the different composition branched NW structures demonstrate encoding of functional p-type/n-type diodes and light-emitting diodes (LEDs) as well as field effect transistors with device function localized at the branch/backbone NW junctions. In addition, multibranch/backbone NW structures were synthesized and used to demonstrate capability to create addressable nanoscale LED arrays, logic circuits, and biological sensors. Our work demonstrates a previously undescribed level of structural and functional complexity in NW materials, and more generally, highlights the potential of bottom-up synthesis to yield increasingly complex functional systems in the future. PMID:21730174

Materials Division research and technology accomplishments for FY 87 and plans for FY 88

NASA Technical Reports Server (NTRS)

Brinkley, Kay L.

1988-01-01

The research program of the Materials Division is presented as FY 87 accomplishments and FY 88 plans. The accomplishments for each Branch are highlighted and plans are outlined. Publications of the Division are included by Branch. This material will be useful in program coordination with other government organizations, universities, and industries in areas of mutual interest.

Digital Encounters: Using Information Technology in an Overseas Branch Campus

ERIC Educational Resources Information Center

Reilly, Benjamin

2008-01-01

In fall of 2004, Carnegie Mellon University embarked on a bold educational experiment, the establishment of an overseas branch campus at Education City in the Persian Gulf state of Qatar. Carnegie Mellon's decision to open up shop in the Middle East was by no means unique; indeed, Carnegie Mellon is just one of a growing number of institutions to…

Thermal Transport in Diamond Films for Electronics Thermal Management

DTIC Science & Technology

2018-03-01

AFRL-RY-WP-TR-2017-0219 THERMAL TRANSPORT IN DIAMOND FILMS FOR ELECTRONICS THERMAL MANAGEMENT Samuel Graham Georgia Institute of Technology MARCH...general public, including foreign nationals. Copies may be obtained from the Defense Technical Information Center (DTIC) (http://www.dtic.mil...Signature// JOHN D. BLEVINS, Program Manager ROSS W. DETTMER, Chief Devices for Sensing Branch Devices for Sensing Branch Aerospace Components

Materials Division research and technology accomplishments for FY 89 and plans for FY 90

NASA Technical Reports Server (NTRS)

Brinkley, Kay L.

1990-01-01

The research program of the Materials Division is presented as FY-89 accomplishments and FY-90 plans. The accomplishments for each Branch are highlighted and plans are outlined. Publications of the Division are included by Branch. This material will be useful in program coordination with other government organizations, universities, and industries in areas of mutual interest.

GATEWAY Report Brief: Tuning the Light in Classrooms: Evaluating Trial LED Lighting Systems in Three Classrooms at the Carrollton-Farmers Branch Independent School District in Carrollton, TX

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

None

Summary of GATEWAY report evaluating a trial installation of tunable-white LED lighting systems in three classrooms in the Carrollton-Farmers Branch Independent School District in Carrollton, TX. The report provides valuable insights into the use of this technology in a real-world setting.

GATEWAY Report: Tuning the Light in Classrooms: Evaluating Trial LED Lighting Systems in Three Classrooms at the Carrollton-Farmers Branch Independent School District in Carrollton, TX

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

Davis, Robert G.; Wilkerson, Andrea

The GATEWAY program evaluated a trial installation of tunable-white LED lighting systems in three classrooms in the Carrollton-Farmers Branch Independent School District in Carrollton, TX. The report provides valuable insights into the use of this technology in a real-world setting.

Structural Weight Estimation for Launch Vehicles

NASA Technical Reports Server (NTRS)

Cerro, Jeff; Martinovic, Zoran; Su, Philip; Eldred, Lloyd

2002-01-01

This paper describes some of the work in progress to develop automated structural weight estimation procedures within the Vehicle Analysis Branch (VAB) of the NASA Langley Research Center. One task of the VAB is to perform system studies at the conceptual and early preliminary design stages on launch vehicles and in-space transportation systems. Some examples of these studies for Earth to Orbit (ETO) systems are the Future Space Transportation System [1], Orbit On Demand Vehicle [2], Venture Star [3], and the Personnel Rescue Vehicle[4]. Structural weight calculation for launch vehicle studies can exist on several levels of fidelity. Typically historically based weight equations are used in a vehicle sizing program. Many of the studies in the vehicle analysis branch have been enhanced in terms of structural weight fraction prediction by utilizing some level of off-line structural analysis to incorporate material property, load intensity, and configuration effects which may not be captured by the historical weight equations. Modification of Mass Estimating Relationships (MER's) to assess design and technology impacts on vehicle performance are necessary to prioritize design and technology development decisions. Modern CAD/CAE software, ever increasing computational power and platform independent computer programming languages such as JAVA provide new means to create greater depth of analysis tools which can be included into the conceptual design phase of launch vehicle development. Commercial framework computing environments provide easy to program techniques which coordinate and implement the flow of data in a distributed heterogeneous computing environment. It is the intent of this paper to present a process in development at NASA LaRC for enhanced structural weight estimation using this state of the art computational power.

Biological Environmental Sampling Technologies Assessment

DTIC Science & Technology

2015-12-01

unlimited. 13. SUPPLEMENTARY NOTES 14. ABSTRACT: U.S. Army Edgewood Chemical Biological Center, Research and Technology Directorate, BioSensors ...format (pdf) electronic version of this report: ECBC R&T Directorate, Biosciences Division, BioSensors Branch RDCB-DRB-S ATTN: Gostomski, J

The WRKY Transcription Factor WRKY71/EXB1 Controls Shoot Branching by Transcriptionally Regulating RAX Genes in Arabidopsis.

PubMed

Guo, Dongshu; Zhang, Jinzhe; Wang, Xinlei; Han, Xiang; Wei, Baoye; Wang, Jianqiao; Li, Boxun; Yu, Hao; Huang, Qingpei; Gu, Hongya; Qu, Li-Jia; Qin, Genji

2015-11-01

Plant shoot branching is pivotal for developmental plasticity and crop yield. The formation of branch meristems is regulated by several key transcription factors including REGULATOR OF AXILLARY MERISTEMS1 (RAX1), RAX2, and RAX3. However, the regulatory network of shoot branching is still largely unknown. Here, we report the identification of EXCESSIVE BRANCHES1 (EXB1), which affects axillary meristem (AM) initiation and bud activity. Overexpression of EXB1 in the gain-of-function mutant exb1-D leads to severe bushy and dwarf phenotypes, which result from excessive AM initiation and elevated bud activities. EXB1 encodes the WRKY transcription factor WRKY71, which has demonstrated transactivation activities. Disruption of WRKY71/EXB1 by chimeric repressor silencing technology leads to fewer branches, indicating that EXB1 plays important roles in the control of shoot branching. We demonstrate that EXB1 controls AM initiation by positively regulating the transcription of RAX1, RAX2, and RAX3. Disruption of the RAX genes partially rescues the branching phenotype caused by EXB1 overexpression. We further show that EXB1 also regulates auxin homeostasis in control of shoot branching. Our data demonstrate that EXB1 plays pivotal roles in shoot branching by regulating both transcription of RAX genes and auxin pathways. © 2015 American Society of Plant Biologists. All rights reserved.

The WRKY Transcription Factor WRKY71/EXB1 Controls Shoot Branching by Transcriptionally Regulating RAX Genes in Arabidopsis

PubMed Central

Guo, Dongshu; Zhang, Jinzhe; Wang, Xinlei; Han, Xiang; Wei, Baoye; Yu, Hao; Huang, Qingpei

2015-01-01

Plant shoot branching is pivotal for developmental plasticity and crop yield. The formation of branch meristems is regulated by several key transcription factors including REGULATOR OF AXILLARY MERISTEMS1 (RAX1), RAX2, and RAX3. However, the regulatory network of shoot branching is still largely unknown. Here, we report the identification of EXCESSIVE BRANCHES1 (EXB1), which affects axillary meristem (AM) initiation and bud activity. Overexpression of EXB1 in the gain-of-function mutant exb1-D leads to severe bushy and dwarf phenotypes, which result from excessive AM initiation and elevated bud activities. EXB1 encodes the WRKY transcription factor WRKY71, which has demonstrated transactivation activities. Disruption of WRKY71/EXB1 by chimeric repressor silencing technology leads to fewer branches, indicating that EXB1 plays important roles in the control of shoot branching. We demonstrate that EXB1 controls AM initiation by positively regulating the transcription of RAX1, RAX2, and RAX3. Disruption of the RAX genes partially rescues the branching phenotype caused by EXB1 overexpression. We further show that EXB1 also regulates auxin homeostasis in control of shoot branching. Our data demonstrate that EXB1 plays pivotal roles in shoot branching by regulating both transcription of RAX genes and auxin pathways. PMID:26578700

Hypersonic Flight Test Windows for Technology Development Testing

DTIC Science & Technology

2013-11-01

used. 2.1 Propulsion and Controls Test Window The technologies dealing with scramjet propulsion (inlets, fuel injection, etc.) and hypersonic ...AFRL-RQ-WP-TM-2013-0260 HYPERSONIC FLIGHT TEST WINDOWS FOR TECHNOLOGY DEVELOPMENT TESTING Barry M. Hellman Vehicle Technology Branch...DATES COVERED (From - To) November 2013 Final 01 November 2013 – 25 November 2013 4. TITLE AND SUBTITLE HYPERSONIC FLIGHT TEST WINDOWS FOR

Evaluation of popliteal artery branching patterns and a new subclassification of the 'usual' branching pattern.

PubMed

Celtikci, Pinar; Ergun, Onur; Durmaz, Hasan Ali; Conkbayir, Isik; Hekimoglu, Baki

2017-09-01

To determine the frequency of popliteal artery branching variations in a wide study cohort and to investigate the relationship between these variations and infrapopliteal peripheral arterial disease (PAD). A subclassification was proposed for the most encountered type I-A, utilizing tibio-fibular trunk (TFT) length. A total number of 1184 lower extremity digital subtraction angiography (DSA) studies of 669 patients were evaluated. Following exclusion, 863 lower extremity DSA studies (431 right, 432 left) of 545 patients were enrolled. Popliteal artery branching type, patency of anterior tibial artery (ATA), fibular artery (FA) and posterior tibial artery (PTA) in each extremity and TFT length for type I-A extremities were recorded. Percentages of branching patterns, mean length and cut-off value of TFT and incidence of PAD in different types of branching were calculated. Type I-A was the most common type of branching (81.3%). Frequency of branching pattern variation was 18.7%, the most common variation category was category III (12.2%) and the most common variation type was type III-A (5.6%). ATA and PTA had higher percentages of PAD in extremities with variant branching types. Cut-off value of 3 cm for TFT length was proposed in order to subclassify type I-A. Our study cohort presents a higher incidence of popliteal artery branching variations. Some branching variations might have effect on the involvement pattern of the infrapopliteal arteries by PAD. We propose a subclassification for type I-A; type I-A-S (TFT < 3 cm) and type I-A-L (TFT ≥ 3 cm) which might have impact on interventional procedures.

Measurements of Absolute Hadronic Branching Fractions of the Λ_{c}^{+} Baryon.

PubMed

Ablikim, M; Achasov, M N; Ai, X C; Albayrak, O; Albrecht, M; Ambrose, D J; Amoroso, A; An, F F; An, Q; Bai, J Z; Baldini Ferroli, R; Ban, Y; Bennett, D W; Bennett, J V; Bertani, M; Bettoni, D; Bian, J M; Bianchi, F; Boger, E; Boyko, I; Briere, R A; Cai, H; Cai, X; Cakir, O; Calcaterra, A; Cao, G F; Cetin, S A; Chang, J F; Chelkov, G; Chen, G; Chen, H S; Chen, H Y; Chen, J C; Chen, M L; Chen, S J; Chen, X; Chen, X R; Chen, Y B; Cheng, H P; Chu, X K; Cibinetto, G; Dai, H L; Dai, J P; Dbeyssi, A; Dedovich, D; Deng, Z Y; Denig, A; Denysenko, I; Destefanis, M; De Mori, F; Ding, Y; Dong, C; Dong, J; Dong, L Y; Dong, M Y; Dou, Z L; Du, S X; Duan, P F; Eren, E E; Fan, J Z; Fang, J; Fang, S S; Fang, X; Fang, Y; Farinelli, R; Fava, L; Fedorov, O; Feldbauer, F; Felici, G; Feng, C Q; Fioravanti, E; Fritsch, M; Fu, C D; Gao, Q; Gao, X L; Gao, X Y; Gao, Y; Gao, Z; Garzia, I; Goetzen, K; Gong, L; Gong, W X; Gradl, W; Greco, M; Gu, M H; Gu, Y T; Guan, Y H; Guo, A Q; Guo, L B; Guo, Y; Guo, Y P; Haddadi, Z; Hafner, A; Han, S; Hao, X Q; Harris, F A; He, K L; Held, T; Heng, Y K; Hou, Z L; Hu, C; Hu, H M; Hu, J F; Hu, T; Hu, Y; Huang, G S; Huang, J S; Huang, X T; Huang, Y; Hussain, T; Ji, Q; Ji, Q P; Ji, X B; Ji, X L; Jiang, L W; Jiang, X S; Jiang, X Y; Jiao, J B; Jiao, Z; Jin, D P; Jin, S; Johansson, T; Julin, A; Kalantar-Nayestanaki, N; Kang, X L; Kang, X S; Kavatsyuk, M; Ke, B C; Kiese, P; Kliemt, R; Kloss, B; Kolcu, O B; Kopf, B; Kornicer, M; Kuehn, W; Kupsc, A; Lange, J S; Lara, M; Larin, P; Leng, C; Li, C; Li, Cheng; Li, D M; Li, F; Li, F Y; Li, G; Li, H B; Li, J C; Li, Jin; Li, K; Li, K; Li, Lei; Li, P R; Li, Q Y; Li, T; Li, W D; Li, W G; Li, X L; Li, X M; Li, X N; Li, X Q; Li, Z B; Liang, H; Liang, Y F; Liang, Y T; Liao, G R; Lin, D X; Liu, B J; Liu, C X; Liu, D; Liu, F H; Liu, Fang; Liu, Feng; Liu, H B; Liu, H H; Liu, H H; Liu, H M; Liu, J; Liu, J B; Liu, J P; Liu, J Y; Liu, K; Liu, K Y; Liu, L D; Liu, P L; Liu, Q; Liu, S B; Liu, X; Liu, Y B; Liu, Z A; Liu, Zhiqing; Loehner, H; Lou, X C; Lu, H J; Lu, J G; Lu, Y; Lu, Y P; Luo, C L; Luo, M X; Luo, T; Luo, X L; Lyu, X R; Ma, F C; Ma, H L; Ma, L L; Ma, Q M; Ma, T; Ma, X N; Ma, X Y; Ma, Y M; Maas, F E; Maggiora, M; Mao, Y J; Mao, Z P; Marcello, S; Messchendorp, J G; Min, J; Mitchell, R E; Mo, X H; Mo, Y J; Morales Morales, C; Muchnoi, N Yu; Muramatsu, H; Nefedov, Y; Nerling, F; Nikolaev, I B; Ning, Z; Nisar, S; Niu, S L; Niu, X Y; Olsen, S L; Ouyang, Q; Pacetti, S; Pan, Y; Patteri, P; Pelizaeus, M; Peng, H P; Peters, K; Pettersson, J; Ping, J L; Ping, R G; Poling, R; Prasad, V; Qi, H R; Qi, M; Qian, S; Qiao, C F; Qin, L Q; Qin, N; Qin, X S; Qin, Z H; Qiu, J F; Rashid, K H; Redmer, C F; Ripka, M; Rong, G; Rosner, Ch; Ruan, X D; Santoro, V; Sarantsev, A; Savrié, M; Schoenning, K; Schumann, S; Shan, W; Shao, M; Shen, C P; Shen, P X; Shen, X Y; Sheng, H Y; Song, W M; Song, X Y; Sosio, S; Spataro, S; Sun, G X; Sun, J F; Sun, S S; Sun, Y J; Sun, Y Z; Sun, Z J; Sun, Z T; Tang, C J; Tang, X; Tapan, I; Thorndike, E H; Tiemens, M; Ullrich, M; Uman, I; Varner, G S; Wang, B; Wang, B L; Wang, D; Wang, D Y; Wang, K; Wang, L L; Wang, L S; Wang, M; Wang, P; Wang, P L; Wang, S G; Wang, W; Wang, W P; Wang, X F; Wang, Y D; Wang, Y F; Wang, Y Q; Wang, Z; Wang, Z G; Wang, Z H; Wang, Z Y; Weber, T; Wei, D H; Wei, J B; Weidenkaff, P; Wen, S P; Wiedner, U; Wolke, M; Wu, L H; Wu, Z; Xia, L; Xia, L G; Xia, Y; Xiao, D; Xiao, H; Xiao, Z J; Xie, Y G; Xiu, Q L; Xu, G F; Xu, L; Xu, Q J; Xu, Q N; Xu, X P; Yan, L; Yan, W B; Yan, W C; Yan, Y H; Yang, H J; Yang, H X; Yang, L; Yang, Y X; Ye, M; Ye, M H; Yin, J H; Yu, B X; Yu, C X; Yu, J S; Yuan, C Z; Yuan, W L; Yuan, Y; Yuncu, A; Zafar, A A; Zallo, A; Zeng, Y; Zeng, Z; Zhang, B X; Zhang, B Y; Zhang, C; Zhang, C C; Zhang, D H; Zhang, H H; Zhang, H Y; Zhang, J J; Zhang, J L; Zhang, J Q; Zhang, J W; Zhang, J Y; Zhang, J Z; Zhang, K; Zhang, L; Zhang, X Y; Zhang, Y; Zhang, Y H; Zhang, Y N; Zhang, Y T; Zhang, Yu; Zhang, Z H; Zhang, Z P; Zhang, Z Y; Zhao, G; Zhao, J W; Zhao, J Y; Zhao, J Z; Zhao, Lei; Zhao, Ling; Zhao, M G; Zhao, Q; Zhao, Q W; Zhao, S J; Zhao, T C; Zhao, Y B; Zhao, Z G; Zhemchugov, A; Zheng, B; Zheng, J P; Zheng, W J; Zheng, Y H; Zhong, B; Zhou, L; Zhou, X; Zhou, X K; Zhou, X R; Zhou, X Y; Zhu, K; Zhu, K J; Zhu, S; Zhu, S H; Zhu, X L; Zhu, Y C; Zhu, Y S; Zhu, Z A; Zhuang, J; Zotti, L; Zou, B S; Zou, J H

2016-02-05

We report the first measurement of absolute hadronic branching fractions of Λ_{c}^{+} baryon at the Λ_{c}^{+}Λ[over ¯]_{c}^{-} production threshold, in the 30 years since the Λ_{c}^{+} discovery. In total, 12 Cabibbo-favored Λ_{c}^{+} hadronic decay modes are analyzed with a double-tag technique, based on a sample of 567  pb^{-1} of e^{+}e^{-} collisions at sqrt[s]=4.599  GeV recorded with the BESIII detector. A global least-squares fitter is utilized to improve the measured precision. Among the measurements for twelve Λ_{c}^{+} decay modes, the branching fraction for Λ_{c}^{+}→pK^{-}π^{+} is determined to be (5.84±0.27±0.23)%, where the first uncertainty is statistical and the second is systematic. In addition, the measurements of the branching fractions of the other 11 Cabibbo-favored hadronic decay modes are significantly improved.

Fuzzy branching temporal logic.

PubMed

Moon, Seong-ick; Lee, Kwang H; Lee, Doheon

2004-04-01

Intelligent systems require a systematic way to represent and handle temporal information containing uncertainty. In particular, a logical framework is needed that can represent uncertain temporal information and its relationships with logical formulae. Fuzzy linear temporal logic (FLTL), a generalization of propositional linear temporal logic (PLTL) with fuzzy temporal events and fuzzy temporal states defined on a linear time model, was previously proposed for this purpose. However, many systems are best represented by branching time models in which each state can have more than one possible future path. In this paper, fuzzy branching temporal logic (FBTL) is proposed to address this problem. FBTL adopts and generalizes concurrent tree logic (CTL*), which is a classical branching temporal logic. The temporal model of FBTL is capable of representing fuzzy temporal events and fuzzy temporal states, and the order relation among them is represented as a directed graph. The utility of FBTL is demonstrated using a fuzzy job shop scheduling problem as an example.

Updating the biomedical engineering curriculum: Inclusion of Health Technology Assessment subjects.

PubMed

Martinez Licona, Fabiola; Urbina, Edmundo Gerardo; Azpiroz-Leehan, Joaquin

2010-01-01

This paper describes the work being carried out at Metropolitan Autonomous University (UAM) in Mexico City with regard to the continuous evaluation and updating of the Biomedical Engineering (BME) curriculum. In particular the courses regarded as part of the BME basic branch are reduced and new sets of elective subjects are proposed in order to bring closer the research work at UAM with the subjects in the BME curriculum. Special emphasis is placed on subjects dealing with Health Technology Assessment (HTA) and Health economics, as this branch of the BME discipline is quite promising in Mexico, but there are very few professionals in the field with adequate qualifications.

Flight Dynamics Analysis Branch

NASA Technical Reports Server (NTRS)

Stengle, Tom; Flores-Amaya, Felipe

2000-01-01

This report summarizes the major activities and accomplishments carried out by the Flight Dynamics Analysis Branch (FDAB), Code 572, in support of flight projects and technology development initiatives in fiscal year 2000. The report is intended to serve as a summary of the type of support carried out by the FDAB, as well as a concise reference of key accomplishments and mission experience derived from the various mission support roles. The primary focus of the FDAB is to provide expertise in the disciplines of flight dynamics, spacecraft trajectory, attitude analysis, and attitude determination and control. The FDAB currently provides support for missions and technology development projects involving NASA, government, university, and private industry.

Developing the mechatronics and robotics at Nizhny Tagil Technological Institute of Ural Federal University

NASA Astrophysics Data System (ADS)

Goman, V. V.; Fedoreev, S. A.

2018-02-01

This report concerns the development trends of education in the field of the Mechatronics and Robotics at Nizhny Tagil Technological Institute (branch of Ural Federal University). The paper considers new teaching technologies, experience in upgrade of the laboratory facilities and some results of development Mechatronics and Robotics educational courses.

Science-Technology Coupling: The Case of Mathematical Logic and Computer Science.

ERIC Educational Resources Information Center

Wagner-Dobler, Roland

1997-01-01

In the history of science, there have often been periods of sudden rapprochements between pure science and technology-oriented branches of science. Mathematical logic as pure science and computer science as technology-oriented science have experienced such a rapprochement, which is studied in this article in a bibliometric manner. (Author)

Undergraduate Medical Communication Training by Means of Information and Communication Technologies in the USA and Ukraine

ERIC Educational Resources Information Center

Manyuk, Lyubov; Kuchumova, Nataliya

2018-01-01

The US medical schools are characterized by a significant progress in the usage of information and communication technologies for professional purposes and communication skills development. This advance was influenced by a sequence of social, academic, technological and financial conditions, namely: permanent research in the branch of…

Radioisotope Power Systems Reference Book for Mission Designers and Planners

NASA Technical Reports Server (NTRS)

Lee, Young; Bairstow, Brian

2015-01-01

The RPS Program's Program Planning and Assessment (PPA) Office commissioned the Mission Analysis team to develop the Radioisotope Power Systems (RPS) Reference Book for Mission Planners and Designers to define a baseline of RPS technology capabilities with specific emphasis on performance parameters and technology readiness. The main objective of this book is to provide RPS technology information that could be utilized by future mission concept studies and concurrent engineering practices. A progress summary from the major branches of RPS technology research provides mission analysis teams with a vital tool for assessing the RPS trade space, and provides concurrent engineering centers with a consistent set of guidelines for RPS performance characteristics. This book will be iterated when substantial new information becomes available to ensure continued relevance, serving as one of the cornerstone products of the RPS PPA Office. This book updates the original 2011 internal document, using data from the relevant publicly released RPS technology references and consultations with RPS technologists. Each performance parameter and RPS product subsection has been reviewed and cleared by at least one subject matter representative. A virtual workshop was held to reach consensus on the scope and contents of the book, and the definitions and assumptions that should be used. The subject matter experts then reviewed and updated the appropriate sections of the book. The RPS Mission Analysis Team then performed further updates and crosschecked the book for consistency. Finally, a second virtual workshop was held to ensure all subject matter experts and stakeholders concurred on the contents.

Elementary Applications of Information Theory in Various Fields of Science and Technology.

ERIC Educational Resources Information Center

Sexl, Roman U.

1979-01-01

Discusses how the concept of information is fundamental to many branches of science, technology, and mathematics and how a systematic use of the information concept can help to bridge the gap between different subjects in school. (HM)

Use of information and communication technologies among individuals with and without serious mental illness.

PubMed

Abu Rahal, Ziyad; Vadas, Limor; Manor, Iris; Bloch, Boaz; Avital, Avi

2018-08-01

Growing interest surrounds the use ofinformation and communication technologies (ICTs) for mental-health-related purposes, yet little is known about rates of ICT use among the psychiatric population and those with severe mental illness. This study examines ICT accessibility among the psychiatric population, focusing on serious and non-serious mental illness (SMI and non-SMI). Patients (N = 427) from all service branches of the Psychiatry Department at Emek Medical Centerwere recruited orally or through advertisement. Responders completed a self-report survey regarding accessibility and use of ICTs (i.e., computer, internet, Facebook, mobile phone, smartphone). Results revealed that 59.3% of respondents used computers, 77.3% used the internet, 92.7% owned a mobile phone, 67.9% owned a smartphone, and 63% used Facebook. Over half of participants who used ICTs reported doing so at least once per day. SMI and non-SMI respondents differed significantly in their use and access to a computer, the internet, Facebook, and smartphones. Results suggest that mental illness is not a barrier to using and accessing technology; however, when differentiating between SMI and non-SMI, illness severity is a barrier to potential ICT utilization. These results may encourage policy makers to design ICTs that suit the needs of individuals with SMI. Copyright © 2018 Elsevier B.V. All rights reserved.

Power supply and impedance matching to drive technological radio-frequency plasmas with customized voltage waveforms.

PubMed

Franek, James; Brandt, Steven; Berger, Birk; Liese, Martin; Barthel, Matthias; Schüngel, Edmund; Schulze, Julian

2015-05-01

We present a novel radio-frequency (RF) power supply and impedance matching to drive technological plasmas with customized voltage waveforms. It is based on a system of phase-locked RF generators that output single frequency voltage waveforms corresponding to multiple consecutive harmonics of a fundamental frequency. These signals are matched individually and combined to drive a RF plasma. Electrical filters are used to prevent parasitic interactions between the matching branches. By adjusting the harmonics' phases and voltage amplitudes individually, any voltage waveform can be approximated as a customized finite Fourier series. This RF supply system is easily adaptable to any technological plasma for industrial applications and allows the commercial utilization of process optimization based on voltage waveform tailoring for the first time. Here, this system is tested on a capacitive discharge based on three consecutive harmonics of 13.56 MHz. According to the Electrical Asymmetry Effect, tuning the phases between the applied harmonics results in an electrical control of the DC self-bias and the mean ion energy at almost constant ion flux. A comparison with the reference case of an electrically asymmetric dual-frequency discharge reveals that the control range of the mean ion energy can be significantly enlarged by using more than two consecutive harmonics.

Virtual reality in medical education and assessment

NASA Technical Reports Server (NTRS)

Sprague, Laurie A.; Bell, Brad; Sullivan, Tim; Voss, Mark; Payer, Andrew F.; Goza, Stewart Michael

1994-01-01

The NASA Johnson Space Center (JSC)/LinCom Corporation, the University of Texas Medical Branch at Galveston (UTMB), and the Galveston Independent School District (GISD) have teamed up to develop a virtual visual environment display (VIVED) that provides a unique educational experience using virtual reality (VR) technologies. The VIVED end product will be a self-contained educational experience allowing students a new method of learning as they interact with the subject matter through VR. This type of interface is intuitive and utilizes spatial and psychomotor abilities which are now constrained or reduced by the current two dimensional terminals and keyboards. The perpetual challenge to educators remains the identification and development of methodologies which conform the learners abilities and preferences. The unique aspects of VR provide an opportunity to explore a new educational experience. Endowing medical students with an understanding of the human body poses some difficulty challenges. One of the most difficult is to convey the three dimensional nature of anatomical structures. The ideal environment for addressing this problem would be one that allows students to become small enough to enter the body and travel through it - much like a person walks through a building. By using VR technology, this effect can be achieved; when VR is combined with multimedia technologies, the effect can be spectacular.

Natural conditions and administrative settings for concentrating photovoltaics in China

NASA Astrophysics Data System (ADS)

Fu, Ling; Chen, Xiaoyuan; Leutz, Ralf

2012-10-01

It is an inevitable trend for China to develop green technologies to help the country to produce cleaner energy and to consume it more efficiently, under the pressure of energy security concern, the nation's emissions trajectory and sustainable economic development. The abundant solar resources in West China provide a big potential to utilize the solar energy. Under the promotion of key incentive policies including both feed-in-tariff (FIT) mechanisms and government rebate programs, China has become a major global solar force in photovoltaic (PV) industry both in manufacturing and in the installation of flat-plate products, with 16 GW production and 2.75 GW installation achieved in the year 2011. As a branch of PV technology, concentrating photovoltaics (CPV) technology with several years' development history in China is presently moving from pilot facilities to commercial-scale applications. Several MW-CPV power plants have been installed by both domestic and western companies in China, factories with several hundred-MW production capacity are being planned or built. Sustainable performance and reliability improvement of CPV modules, a vertical integration of supply chain in CPV industry aiming at a cost reduction, a sufficient grid infrastructure for facilitating the West-East and North-South electricity transmission will promote Chinese CPV market to actually initiate, develop and mature.

Security Police Officer Utilization Field, AFSCs 8111, 8116, 8121, and 8124.

DTIC Science & Technology

1981-06-01

STATEMENT A M C Approved for public release 82 0 4 26Distribution Unlimited C=DCC=D= APS 8 1 X CECI I CODING INSTRUCTIONS -- -- -" Print the booklet copy...m == NAME (Last, First, Middle Initial) DATE OF BIRTH SEX YR NO DAY (MALE -"(11-34) (3s-5- rayo (41) PRESENT GRADE: SOCIAL SECURITY ACCOUNT NUMBER...Branch - 11. OIC Missile Support Branch - __m 12. OIC Weapons Systems Security , 4 8 CODE 99 X ~.t ! AFS 81XX -mmm -C - . .’ .9 - =, BACKGROUND

Endothelial cell culture in microfluidic devices for investigating microvascular processes.

PubMed

Mannino, Robert G; Qiu, Yongzhi; Lam, Wilbur A

2018-07-01

Numerous conditions and disease states such as sickle cell disease, malaria, thrombotic microangiopathy, and stroke significantly impact the microvasculature function and its role in disease progression. Understanding the role of cellular interactions and microvascular hemodynamic forces in the context of disease is crucial to understanding disease pathophysiology. In vivo models of microvascular disease using animal models often coupled with intravital microscopy have long been utilized to investigate microvascular phenomena. However, these methods suffer from some major drawbacks, including the inability to tightly and quantitatively control experimental conditions, the difficulty of imaging multiple microvascular beds within a living organism, and the inability to isolate specific microvascular geometries such as bifurcations. Thus, there exists a need for in vitro microvascular models that can mitigate the drawbacks associated with in vivo systems. To that end, microfluidics has been widely used to develop such models, as it allows for tight control of system inputs, facile imaging, and the ability to develop robust and repeatable systems with well-defined geometries. Incorporating endothelial cells to branching microfluidic models allows for the development of "endothelialized" systems that accurately recapitulate physiological microvessels. In this review, we summarize the field of endothelialized microfluidics, specifically focusing on fabrication methods, limitations, and applications of these systems. We then speculate on future directions and applications of these cutting edge technologies. We believe that this review of the field is of importance to vascular biologists and bioengineers who aim to utilize microfluidic technologies to solve vascular problems.

Research experiments at Hangar L

NASA Technical Reports Server (NTRS)

2000-01-01

Visiting scientist Cheryl Frazier monitors a prototype composting machine in Hangar L at the Cape Canaveral Air Force Station. The research she is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship.

KSC-00pp0694

NASA Image and Video Library

2000-05-29

Research assistant Trisha Bruno performs an analysis on potato samples at Hangar L at the Cape Canaveral Air Force Station. The research she is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC-00pp0695

NASA Image and Video Library

2000-05-29

Visiting scientist Cheryl Frazier monitors a prototype composting machine in Hangar L at the Cape Canaveral Air Force Station. The research she is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC00pp0695

NASA Image and Video Library

2000-05-29

Visiting scientist Cheryl Frazier monitors a prototype composting machine in Hangar L at the Cape Canaveral Air Force Station. The research she is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC-00pp0696

NASA Image and Video Library

2000-05-01

Research scientist Greg Goins monitors radish growth under a sulfur-microwave light at Hangar L at the Cape Canaveral Air Force Station. The research he is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardshi

KSC00pp0693

NASA Image and Video Library

2000-05-29

Research assistant Trisha Bruno performs an analysis on potato samples at Hangar L at the Cape Canaveral Air Force Station. The research she is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC00pp0694

NASA Image and Video Library

2000-05-29

Research assistant Trisha Bruno performs an analysis on potato samples at Hangar L at the Cape Canaveral Air Force Station. The research she is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC-00pp0693

NASA Image and Video Library

2000-05-29

Research assistant Trisha Bruno performs an analysis on potato samples at Hangar L at the Cape Canaveral Air Force Station. The research she is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC00pp0696

NASA Image and Video Library

2000-05-01

Research scientist Greg Goins monitors radish growth under a sulfur-microwave light at Hangar L at the Cape Canaveral Air Force Station. The research he is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardshi

KSC00pp0692

NASA Image and Video Library

2000-05-29

Research scientist Vadim Rygalov describes a new low-pressure water-recycling experiment being designed to help simulate plant growth conditions on Mars. The research he is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC-00pp0692

NASA Image and Video Library

2000-05-29

Research scientist Vadim Rygalov describes a new low-pressure water-recycling experiment being designed to help simulate plant growth conditions on Mars. The research he is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

2008 Post-Election Voting Survey of Overseas Citizens: Statistical Methodology Report

DTIC Science & Technology

2009-08-01

Gorsak. Westat performed data collection and editing. DMDC’s Survey Technology Branch, under the guidance of Frederick Licari, Branch Chief, is...POST-ELECTION VOTING SURVEY OF OVERSEAS CITIZENS: STATISTICAL METHODOLOGY REPORT Executive Summary The Uniformed and Overseas Citizens Absentee ...ease the process of voting absentee , (3) to evaluate other progress made to facilitate voting participation, and (4) to identify any remaining

2008 Post-Election Voting Survey of Overseas Citizens: Tabulation of Responses

DTIC Science & Technology

2009-09-01

Mark Gorsak. Westat performed data collection and editing. DMDC’s Survey Technology Branch, under the guidance of Frederick Licari, Branch Chief...election day, definitely mail or fax a completed absentee ballot on or before November 4, 2008, definitely not vote, or are you not completely sure...Even though you did not vote, did you request an absentee ballot for the November 4, 2008 election

Research experiments at Hangar L

NASA Technical Reports Server (NTRS)

2000-01-01

Research assistant Trisha Bruno performs an analysis on potato samples at Hangar L at the Cape Canaveral Air Force Station. The research she is performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship.

Evaluation of Branched-Narrative Virtual Patients for Interprofessional Education of Psychiatry Residents.

PubMed

Wilkening, G Lucy; Gannon, Jessica M; Ross, Clint; Brennan, Jessica L; Fabian, Tanya J; Marcsisin, Michael J; Benedict, Neal J

2017-02-01

This pilot study evaluated the utility of branched-narrative virtual patients in an interprofessional education series for psychiatry residents. Third-year psychiatry residents attended four interprofessional education advanced psychopharmacology sessions that involved completion of a branched-narrative virtual patient and a debriefing session with a psychiatric pharmacist. Pre- and post-assessments analyzed resident learning and were administered around each virtual patient. Simulation 4 served as a comprehensive review. The primary outcome was differences in pre- and post-assessment scores. Secondary outcomes included resident satisfaction with the virtual patient format and psychiatric pharmacist involvement. Post-test scores for simulations 1, 2, and 3 demonstrated significant improvement (p < 0.05) from pre-test scores. Scores for simulation 4 did not retain significance. Resident satisfaction with the branched-narrative virtual patient format and psychiatric pharmacist involvement was high throughout the series (100 %; n = 18). Although there are important methodological limitations to this study including a small sample size and absence of a comparator group, this pilot study supports the use of branched-narrative virtual patients in an interprofessional education series for advanced learners.

TECHNOLOGY IN EDUCATION.

ERIC Educational Resources Information Center

TONDOW, MURRAY

PAPERS ON THE PRESENT AND FUTURE USE OF TECHNOLOGY IN EDUCATION IS PRESENTED. HARRY F. SILBERMAN, IN "EVALUATIVE CRITERIA FOR AUTOMATED TEACHING PROGRAMS," PRESENTS COMMENTS, CRITERIA, AND TABLES ON AUTOMATED TEACHING PROGRAMS. HE DESCRIBES EXPERIMENTS ON THE EFFECTIVENESS OF BRANCHING AND FIXED SEQUENCE PROGRAMS, ON A FOLLOWUP…

Automated anatomical labeling of bronchial branches using multiple classifiers and its application to bronchoscopy guidance based on fusion of virtual and real bronchoscopy

NASA Astrophysics Data System (ADS)

Ota, Shunsuke; Deguchi, Daisuke; Kitasaka, Takayuki; Mori, Kensaku; Suenaga, Yasuhito; Hasegawa, Yoshinori; Imaizumi, Kazuyoshi; Takabatake, Hirotsugu; Mori, Masaki; Natori, Hiroshi

2008-03-01

This paper presents a method for automated anatomical labeling of bronchial branches (ALBB) extracted from 3D CT datasets. The proposed method constructs classifiers that output anatomical names of bronchial branches by employing the machine-learning approach. We also present its application to a bronchoscopy guidance system. Since the bronchus has a complex tree structure, bronchoscopists easily tend to get disoriented and lose the way to a target location. A bronchoscopy guidance system is strongly expected to be developed to assist bronchoscopists. In such guidance system, automated presentation of anatomical names is quite useful information for bronchoscopy. Although several methods for automated ALBB were reported, most of them constructed models taking only variations of branching patterns into account and did not consider those of running directions. Since the running directions of bronchial branches differ greatly in individuals, they could not perform ALBB accurately when running directions of bronchial branches were different from those of models. Our method tries to solve such problems by utilizing the machine-learning approach. Actual procedure consists of three steps: (a) extraction of bronchial tree structures from 3D CT datasets, (b) construction of classifiers using the multi-class AdaBoost technique, and (c) automated classification of bronchial branches by using the constructed classifiers. We applied the proposed method to 51 cases of 3D CT datasets. The constructed classifiers were evaluated by leave-one-out scheme. The experimental results showed that the proposed method could assign correct anatomical names to bronchial branches of 89.1% up to segmental lobe branches. Also, we confirmed that it was quite useful to assist the bronchoscopy by presenting anatomical names of bronchial branches on real bronchoscopic views.

Quantitative Proteomics Analysis of Herbaceous Peony in Response to Paclobutrazol Inhibition of Lateral Branching

PubMed Central

Zhao, Daqiu; Gong, Saijie; Hao, Zhaojun; Meng, Jiasong; Tao, Jun

2015-01-01

Herbaceous peony (Paeonia lactiflora Pall.) is an emerging high-grade cut flower worldwide, which is usually used in wedding bouquets and known as the “wedding flower”. However, abundant lateral branches appear frequently in some excellent cultivars, and a lack of a method to remove Paeonia lactiflora lateral branches other than inefficient artificial methods is an obstacle for improving the quality of its cut flowers. In this study, paclobutrazol (PBZ) application was found to inhibit the growth of lateral branches in Paeonia lactiflora for the first time, including 96.82% decreased lateral bud number per branch, 77.79% and 42.31% decreased length and diameter of lateral branches, respectively, declined cell wall materials and changed microstructures. Subsequently, isobaric tag for relative and absolute quantitation (iTRAQ) technology was used for quantitative proteomics analysis of lateral branches under PBZ application and control. The results indicated that 178 differentially expressed proteins (DEPs) successfully obtained, 98 DEPs were up-regulated and 80 DEPs were down-regulated. Thereafter, 34 candidate DEPs associated with the inhibited growth of lateral branches were screened according to their function and classification. These PBZ-stress responsive candidate DEPs were involved in eight biological processes, which played a very important role in the growth and development of lateral branches together with the response to PBZ stress. These results provide a better understanding of the molecular theoretical basis for removing Paeonia lactiflora lateral branches using PBZ application. PMID:26473855

Production and characterization of murine models of classic and intermediate maple syrup urine disease

PubMed Central

Homanics, Gregg E; Skvorak, Kristen; Ferguson, Carolyn; Watkins, Simon; Paul, Harbhajan S

2006-01-01

Background Maple Syrup Urine Disease (MSUD) is an inborn error of metabolism caused by a deficiency of branched-chain keto acid dehydrogenase. MSUD has several clinical phenotypes depending on the degree of enzyme deficiency. Current treatments are not satisfactory and require new approaches to combat this disease. A major hurdle in developing new treatments has been the lack of a suitable animal model. Methods To create a murine model of classic MSUD, we used gene targeting and embryonic stem cell technologies to create a mouse line that lacked a functional E2 subunit gene of branched-chain keto acid dehydrogenase. To create a murine model of intermediate MSUD, we used transgenic technology to express a human E2 cDNA on the knockout background. Mice of both models were characterized at the molecular, biochemical, and whole animal levels. Results By disrupting the E2 subunit gene of branched-chain keto acid dehydrogenase, we created a gene knockout mouse model of classic MSUD. The homozygous knockout mice lacked branched-chain keto acid dehydrogenase activity, E2 immunoreactivity, and had a 3-fold increase in circulating branched-chain amino acids. These metabolic derangements resulted in neonatal lethality. Transgenic expression of a human E2 cDNA in the liver of the E2 knockout animals produced a model of intermediate MSUD. Branched-chain keto acid dehydrogenase activity was 5–6% of normal and was sufficient to allow survival, but was insufficient to normalize circulating branched-chain amino acids levels, which were intermediate between wildtype and the classic MSUD mouse model. Conclusion These mice represent important animal models that closely approximate the phenotype of humans with the classic and intermediate forms of MSUD. These animals provide useful models to further characterize the pathogenesis of MSUD, as well as models to test novel therapeutic strategies, such as gene and cellular therapies, to treat this devastating metabolic disease. PMID:16579849

Precision Distances with the Tip of the Red Giant Branch Method

NASA Astrophysics Data System (ADS)

Beaton, Rachael Lynn; Carnegie-Chicago Hubble Program Team

2018-01-01

The Carnegie-Chicago Hubble Program aims to construct a distance ladder that utilizes old stellar populations in the outskirts of galaxies to produce a high precision measurement of the Hubble Constant that is independent of Cepheids. The CCHP uses the tip of the red giant branch (TRGB) method, which is a statistical measurement technique that utilizes the termination of the red giant branch. Two innovations combine to make the TRGB a competitive route to the Hubble Constant (i) the large-scale measurement of trigonometric parallax by the Gaia mission and (ii) the development of both precise and accurate means of determining the TRGB in both nearby (~1 Mpc) and distant (~20 Mpc) galaxies. Here I will summarize our progress in developing these standardized techniques, focusing on both our edge-detection algorithm and our field selection strategy. Using these methods, the CCHP has determined equally precise (~2%) distances to galaxies in the Local Group (< 1 Mpc) and across the Local Volume (< 20 Mpc). The TRGB is, thus, an incredibly powerful and straightforward means to determine distances to galaxies of any Hubble Type and, thus, has enormous potential for putting any number of astrophyiscal phenomena on absolute units.

T-IDBA: A de novo Iterative de Bruijn Graph Assembler for Transcriptome

NASA Astrophysics Data System (ADS)

Peng, Yu; Leung, Henry C. M.; Yiu, S. M.; Chin, Francis Y. L.

RNA-seq data produced by next-generation sequencing technology is a useful tool for analyzing transcriptomes. However, existing de novo transcriptome assemblers do not fully utilize the properties of transcriptomes and may result in short contigs because of the splicing nature (shared exons) of the genes. We propose the T-IDBA algorithm to reconstruct expressed isoforms without reference genome. By using pair-end information to solve the problem of long repeats in different genes and branching in the same gene due to alternative splicing, the graph can be decomposed into small components, each corresponds to a gene. The most possible isoforms with sufficient support from the pair-end reads will be found heuristically. In practice, our de novo transcriptome assembler, T-IDBA, outperforms Abyss substantially in terms of sensitivity and precision for both simulated and real data. T-IDBA is available at http://www.cs.hku.hk/~alse/tidba/

Leveraging M and S in Soft Skills Training for the DoD

NASA Technical Reports Server (NTRS)

Cimino, James D.

2011-01-01

Soft skills, also called "people skills," are typically hard to observe, quantify and measure. These skills have to do with how we relate to each other; communicating, listening, engaging in dialogue, giving feedback, cooperating as a team member, solving problems and resolving conflicts. Most of the soft skills training is scenario based, utilizing written or video-based scenarios. with limited or no branching, as well as quantitative feedback. This paper will outline a game-based approach to configurable, scenario-based, soft skills training. The paper will discuss the application of realistic visual behavior cues (e.g. body language, vocal inflection, facial expressions) and how these can benefit the learner. Using the concept of a "virtual vignette" this paper will discuss a prototype system intended to leach suicide prevention and provide qualitative feedback to the learner. The paper will also explore other soft skills training applications for this technology

Superradiant Quantum Heat Engine.

PubMed

Hardal, Ali Ü C; Müstecaplıoğlu, Özgür E

2015-08-11

Quantum physics revolutionized classical disciplines of mechanics, statistical physics, and electrodynamics. One branch of scientific knowledge however seems untouched: thermodynamics. Major motivation behind thermodynamics is to develop efficient heat engines. Technology has a trend to miniaturize engines, reaching to quantum regimes. Development of quantum heat engines (QHEs) requires emerging field of quantum thermodynamics. Studies of QHEs debate whether quantum coherence can be used as a resource. We explore an alternative where it can function as an effective catalyst. We propose a QHE which consists of a photon gas inside an optical cavity as the working fluid and quantum coherent atomic clusters as the fuel. Utilizing the superradiance, where a cluster can radiate quadratically faster than a single atom, we show that the work output becomes proportional to the square of the number of the atoms. In addition to practical value of cranking up QHE, our result is a fundamental difference of a quantum fuel from its classical counterpart.

Effects of the new communication technologies on the structure and the flow of activities in an enterprise

NASA Astrophysics Data System (ADS)

Czaputa, R.

The reported investigation takes into account the developments in a large multinational company of German origin. The worldwide engagement of the company in the areas of development, manufacture, and marketing makes it necessary to maintain close contacts between people in the various branches of the organization. A utilization of all economically employable techniques is needed to satisfy the resulting intensive communication requirements. It is pointed out that the quality of the communication system can be of critical importance because an important order may be given to the firm which can provide information regarding prices and the execution of the order in a shorter time and a better form than competitive firms. Attention is given to the desirability of a further extension of the worldwide telex service, 'electronic mail' in the office, and the transmission of pictorial information.

Utilization of the UV laser with picosecond pulses for the formation of surface microstructures on elastomeric plastics

NASA Astrophysics Data System (ADS)

Antoszewski, B.; Tofil, S.; Scendo, M.; Tarelnik, W.

2017-08-01

Elastomeric plastics belong to a wide range of polymeric materials with special properties. They are used as construction material for seals and other components in many branches of industry and, in particular, in the biomedical industry, mechatronics, electronics and chemical equipment. The micromachining of surfaces of these materials can be used to build micro-flow, insulating, dispensing systems and chemical and biological reactors. The paper presents results of research on the effects of micro-machining of selected elastomeric plastics using a UV laser emitting picosecond pulses. The authors see the prospective application of the developed technology in the sealing technique in particular to shaping the sealing pieces co-operating with the surface of the element. The result of the study is meant to show parameters of the UV laser’s performance when producing typical components such as grooves, recesses for optimum ablation in terms of quality and productivity.

Special Education Tchnology: A Federal Perspective.

ERIC Educational Resources Information Center

Johnson, James S.; Kaufman, Martin J.

1982-01-01

The Technology and Marketing Branch of Special Education programs within the US Department of Education has focused on promoting the availability, quality, and use of advances in education technology for handicapped persons. Activities have included assistance to developers, liaison with commercial publishers, and dissemination of information to…

Flight Dynamics Analysis Branch End of Fiscal Year 2002 Report

NASA Technical Reports Server (NTRS)

Mangus, David (Editor); Mendelsohn, Chad (Editor); Starin, Scott (Editor); Stengle, Tom (Editor); Truong, Son (Editor)

2002-01-01

This report summarizes the major activities and accomplishments carried out by the Flight Dynamics Analysis Branch (FDAB), Code 572, in support of flight projects and technology development initiatives in Fiscal Year (FY) 2002. The report is intended to serve as a summary of the type of support carried out by the FDAB, as well as a concise reference of key accomplishments and mission experience derived from the various mission support roles. The primary focus of the FDAB is to provide expertise in the disciplines of flight dynamics including navigation, spacecraft trajectory design, attitude analysis, attitude determination and attitude control. The FDAB currently provides support for missions and technology development projects involving NASA, government, university, and private industry.

KSC-00pp0690

NASA Image and Video Library

2000-05-29

Research scientist Oscar Monje records data associated with ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC00pp0690

NASA Image and Video Library

2000-05-29

Research scientist Oscar Monje records data associated with ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

2008 Post-Election Voting Survey of Federal Civilians Overseas: Tabulations of Responses

DTIC Science & Technology

2009-08-01

weights for this survey. Westat performed data collection and editing. DMDC’s Survey Technology Branch, under the guidance of Frederick Licari, Branch...person on election day, definitely mail or fax a completed absentee ballot on or before November 4, 2008, definitely not vote, or are you not...15 14. Even though you did not vote, did you request an absentee ballot for the November 4, 2008 election

Controls and Health Management Technologies for Intelligent Aerospace Propulsion Systems

NASA Technical Reports Server (NTRS)

Garg, Sanjay

2004-01-01

With the increased emphasis on aircraft safety, enhanced performance and affordability, and the need to reduce the environmental impact of aircraft, there are many new challenges being faced by the designers of aircraft propulsion systems. The Controls and Dynamics Technology Branch at NASA (National Aeronautics and Space Administration) Glenn Research Center (GRC) in Cleveland, Ohio, is leading and participating in various projects in partnership with other organizations within GRC and across NASA, the U.S. aerospace industry, and academia to develop advanced controls and health management technologies that will help meet these challenges through the concept of an Intelligent Engine. The key enabling technologies for an Intelligent Engine are the increased efficiencies of components through active control, advanced diagnostics and prognostics integrated with intelligent engine control to enhance component life, and distributed control with smart sensors and actuators in an adaptive fault tolerant architecture. This paper describes the current activities of the Controls and Dynamics Technology Branch in the areas of active component control and propulsion system intelligent control, and presents some recent analytical and experimental results in these areas.

Internet and video technology in psychotherapy supervision and training.

PubMed

Wolf, Abraham W

2011-06-01

The seven articles in this special section on the use of Internet and video technology represent the latest growth on one branch of the increasingly prolific and differentiated work in the technology of psychotherapy. In addition to the work presented here on video and the Internet applications to supervision and training, information technology is changing the field of psychotherapy through computer assisted therapies and virtual reality interventions.

Technological parameters of welding of branch saddles to polyethylene pipes at low temperatures

NASA Astrophysics Data System (ADS)

Starostin, N. P.; Vasilieva, M. A.

2017-12-01

The present paper outlines a procedure for determination of dynamics of the temperature field during the welding of the branch saddle to the polyethylene gas pipeline at ambient temperatures below the normative. The analysis is accomplished by the finite element method with the heat of the phase transition taken into account. Methods of the visualization of data sets reveal the possibility of controlling the thermal process by preheating and thermal insulation during welding of the branch saddle to the pipe at low temperatures and the possibility of obtaining the dynamics of the temperature field at which a high-quality welded joint is formed.

Making the Most of Waste Energy

NASA Technical Reports Server (NTRS)

2005-01-01

The Thermo-Mechanical Systems Branch at NASA s Glenn Research Center is responsible for planning and conducting research efforts to advance thermal systems for space, aerospace, and non-aerospace applications. Technological areas pertain to solar and thermal energy conversion. For example, thermo-mechanical systems researchers work with gas (Stirling) and liquid/vapor (Rankine) systems that convert thermal energy to electrical power, as well as solar dynamic power systems that concentrate sunlight to electrical power. The branch s development of new solar and thermal energy technologies is propelling NASA s missions deep into unfamiliar territories of space. Solar dynamic power systems are actively improving the health of orbiting satellites, giving them longer life and a stronger radiation tolerance, thus, creating less need for on-orbit maintenance. For future missions, NASA may probe even deeper into the mysterious cosmos, with the adoption of highly efficient thermal energy converters that have the potential to serve as the source of onboard electrical power for satellites and spacecraft. Research indicates that these thermal converters can deliver up to 5 times as much power as radioisotope thermoelectric generators in use today, for the same amount of radioisotope. On Earth, energy-converting technologies associated with NASA s Thermo-Mechanical Systems Branch are being used to recover and transform low-temperature waste heat into usable electric power, with a helping hand from NASA.

Space Mechanisms Technology Workshop

NASA Technical Reports Server (NTRS)

Oswald, Fred B. (Editor)

2001-01-01

The Mechanical Components Branch at NASA Glenn Research Center hosted a workshop to discuss the state of drive systems technology needed for space exploration. The Workshop was held Thursday, November 2, 2000. About 70 space mechanisms experts shared their experiences from working in this field and considered technology development that will be needed to support future space exploration in the next 10 to 30 years.

Lessons learned: the switch from VMS to UNIX operations for the STScI's Science and Mission Scheduling Branch

NASA Astrophysics Data System (ADS)

Adler, David S.; Workman, William M., III; Chance, Don

2004-09-01

The Science and Mission Scheduling Branch (SMSB) of the Space Telescope Science Institute (STScI) historically operated exclusively under VMS. Due to diminished support for VMS-based platforms at STScI, SMSB recently transitioned to Unix operations. No additional resources were available to the group; the project was SMSB's to design, develop, and implement. Early decisions included the choice of Python as the primary scripting language; adoption of Object-Oriented Design in the development of base utilities; and the development of a Python utility to interact directly with the Sybase database. The project was completed in January 2004 with the implementation of a GUI to generate the Command Loads that are uplinked to HST. The current tool suite consists of 31 utilities and 271 tools comprising over 60,000 lines of code. In this paper, we summarize the decision-making process used to determine the primary scripting language, database interface, and code management library. We also describe the finished product and summarize lessons learned along the way to completing the project.

Astrophysical relevance of the low-energy dipole strength of 206Pb

NASA Astrophysics Data System (ADS)

Tonchev, A. P.; Tsoneva, N.; Goriely, S.; Bhatia, C.; Arnold, C. W.; Hammond, S. L.; Kelley, J. H.; Kwan, E.; Lenske, H.; Piekarewicz, J.; Raut, R.; Rusev, G.; Shizuma, T.; Tornow, W.

2018-05-01

The dipole strength of 206Pb was studied below the neutron separation energy using photon scattering experiments at the HIGS facility. Utilizing the technique of nuclear resonance fluorescence with 100% linearly-polarized photon beams, the spins, parities, branching ratios and decay widths of excited states in 206Pb from 4.9 - 8.1 MeV have been measured. The new experimental information is used to reliably predict the neutron capture cross section of 205Pb, an important branch point nucleus along the s-process path of nucleosynthesis.

Utilization of a Marketing Strategy at Naval Regional Medical Center Great Lakes, Great Lakes, Illinois

DTIC Science & Technology

1983-06-01

meet the needs of each target market. Ś __-- - ,’ -m (-"b---"m m m 47 FOOTNOTES Philip Kotler , Marketing for Non-profit Organizations, 2nd Edition...for Branch Clinic, and Isley, Wynett A., ENS, MSC, USN, Officer-in-Charge, Branch Clinic 237. Interview, 15 April 1983. Books Kotler , Philip . Marketing...8217Healers’ Replace M.D.’s?" Medical Economics 59 (August 9, 1982): 89. 6Larry M. Robinson and Philip D. Cooper, "Roadblocks to Hospital Marketing

Partial shading of lateral branches affects growth, and foliage nitrogen- and water-use efficiencies in the conifer Cunninghamia lanceolata growing in a warm monsoon climate.

PubMed

Dong, Tingfa; Li, Junyu; Zhang, Yuanbin; Korpelainen, Helena; Niinemets, Ülo; Li, Chunyang

2015-06-01

The degree to which branches are autonomous in their acclimation responses to alteration in light environment is still poorly understood. We investigated the effects of shading of the sapling crown of Cunninghamia lanceolata (Lamb.) Hook on the whole-tree and mid-crown branch growth and current-year foliage structure and physiology. Four treatments providing 0, 50, 75 and 90% shading compared with full daylight (denoted as Treatment(0), Treatment(50%), Treatment(75%) and Treatment(90%), and Shaded(0), Shaded(50%), Shaded(75%) and Shaded(90%) for the shaded branches and Sunlit(0), Sunlit(50%), Sunlit(75%) and Sunlit(90%) for the opposite sunlit branches under natural light conditions, respectively), were applied over two consecutive growing seasons. Shading treatments decreased the growth of basal stem diameter, leaf dry mass per unit leaf area, stomatal conductance, transpiration rate, the ratio of water-soluble to structural leaf nitrogen content, photosynthetic nitrogen-use efficiency and instantaneous and long-term (estimated from carbon isotope composition) water-use efficiency in shaded branches. Differences between shaded and sunlit branches increased with increasing severity and duration of shading. A non-autonomous, partly compensatory behavior of non-shaded branches was observed for most traits, thus reflecting the dependence between the traits of sunlit branches and the severity of shading of the opposite crown half. The results collectively indicated that tree growth and branch and leaf acclimation responses of C. lanceolata are not only affected by the local light environment, but also by relative within-crown light conditions. We argue that such a non-autonomous branch response to changes in light conditions can improve whole-tree resource optimization. These results contribute to better understanding of tree growth and utilization of water and nitrogen under heterogeneous light conditions within tree canopies. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

WMD first response: requirements, emerging technologies, and policy implications

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

Vergino, E S; Hoehn, W E

2000-06-19

In the US today, efforts are underway to defend against the possible terrorist use of weapons of mass destruction (WMD) against US cities. These efforts include the development and adaptation of technologies to support prevention and detection, to defend against a possible attack, and, if these fail, to provide both mitigation responses and attribution for a WMD incident. Technologies under development span a range of systems, from early detection and identification of an agent or explosive, to diagnostic and systems analysis tools; and to forensic analysis for law enforcement. Also, many techniques and tools that have been developed for othermore » applications are being examined to determine whether, with some modification, they could be of use by the emergency preparedness, public health, and law enforcement communities. However, anecdotal evidence suggests the existence of a serious disconnect between the technology development communities and these user communities. This disconnect arises because funding for technology development is derived primarily from sources (principally federal agencies) distant from the emergency response communities, which are predominantly state, county, or local entities. Moreover, the first responders with whom we have worked candidly admit that their jurisdictions have been given, or have purchased for them, a variety of technological devices, typically without consulting the emergency responders about their utility. In private discussions, emergency responders derisively refer to these as a closet full of useless toys. Technology developers have many new and relevant technologies currently in the development pipeline, but most have not been adequately vetted against the field needs or validated for field use. The Center for Global Security Research at the Lawrence Livermore National Laboratory and the Sam Nunn School of International Affairs at the Georgia Institute of Technology recently sponsored a two-day workshop to bring together some 50 representatives of the emergency response, technology development, and policy communities. Participating in this workshop were first responders (representing law enforcement, public health, and emergency response personnel from Los Angeles County, Salt Lake City, Atlanta, and London, England), technology developers from US government laboratories and universities, and policymakers from both the executive and legislative branches of the federal government. The workshop had several objectives. First, we wanted the emergency responders to define the utility of various technologies and tools currently available for first response to a WMD event. Second, we expected the workshop to provide input to the technologists directly from the field users, regarding their special requirements for, and constraints on the use of, new emergency response technologies. Third, we planned to expose the first responders to the types of new technologies under development and allow them the opportunity to ask questions and voice their needs. Finally, we planned to provide recommendations to policymakers for new directions for development and investment of technology.« less

Evaluation of Extended-wear Hearing Aid Technology for Operational Military Use

DTIC Science & Technology

2015-07-01

AFRL), Battlespace Acoustics Branch has been updated and approved to include the Lyric device. The AFRL protocol was sent to the Human Research...Jackson Foundation for the Advancement of Military Medicine Battlespace Acoustics Branch AFRL Wright-Patterson AFB, OH 45433 elizabeth_anne.mckenna.1...just after Hearing Aid 10 Drive speaker Incased in Foam 11 3.0 MEASUREMENTS PERFORMED 3.1 RE102 - Radiated Emissions, Electric Field, 2 MHz to 18

KSC00pp0698

NASA Image and Video Library

2000-05-22

Research technician Lisa Ruffa works with a wheat sample that is part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC00pp0691

NASA Image and Video Library

2000-05-29

Research scientist Gary Stutte displays a wheat sample that is part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC-00pp0691

NASA Image and Video Library

2000-05-29

Research scientist Gary Stutte displays a wheat sample that is part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC-00pp0698

NASA Image and Video Library

2000-05-22

Research technician Lisa Ruffa works with a wheat sample that is part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC00pp0689

NASA Image and Video Library

2000-05-22

Research technician Lisa Ruffa works with a wheat sample that is part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC-00pp0689

NASA Image and Video Library

2000-05-22

Research technician Lisa Ruffa works with a wheat sample that is part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

Intelligent Tutor

NASA Technical Reports Server (NTRS)

1990-01-01

NASA also seeks to advance American education by employing the technology utilization process to develop a computerized, artificial intelligence-based Intelligent Tutoring System (ITS) to help high school and college physics students. The tutoring system is designed for use with the lecture and laboratory portions of a typical physics instructional program. Its importance lies in its ability to observe continually as a student develops problem solutions and to intervene when appropriate with assistance specifically directed at the student's difficulty and tailored to his skill level and learning style. ITS originated as a project of the Johnson Space Center (JSC). It is being developed by JSC's Software Technology Branch in cooperation with Dr. R. Bowen Loftin at the University of Houston-Downtown. Program is jointly sponsored by NASA and ACOT (Apple Classrooms of Tomorrow). Other organizations providing support include Texas Higher Education Coordinating Board, the National Research Council, Pennzoil Products Company and the George R. Brown Foundation. The Physics I class of Clear Creek High School, League City, Texas are providing the classroom environment for test and evaluation of the system. The ITS is a spinoff product developed earlier to integrate artificial intelligence into training/tutoring systems for NASA astronauts flight controllers and engineers.

Defective parasympathetic innervation is associated with airway branching abnormalities in experimental CDH

PubMed Central

Rhodes, Julie; Saxena, Deeksha; Zhang, GuangFeng; Gittes, George K.

2015-01-01

Developmental mechanisms leading to lung hypoplasia in congenital diaphragmatic hernia (CDH) remain poorly defined. Pulmonary innervation is defective in the human disease and in the rodent models of CDH. We hypothesize that defective parasympathetic innervation may contribute to airway branching abnormalities and, therefore, lung hypoplasia, during lung development in CDH. The murine nitrofen model of CDH was utilized to study the effect of the cholinergic agonist carbachol on embryonic day 11.5 (E11.5) lung explant cultures. Airway branching and contractions were quantified. In a subset of experiments, verapamil was added to inhibit airway contractions. Sox9 immunostaining and 5-bromo-2-deoxyuridine incorporation were used to identify and quantify the number and proliferation of distal airway epithelial progenitor cells. Intra-amniotic injections were used to determine the in vivo effect of carbachol. Airway branching and airway contractions were significantly decreased in nitrofen-treated lungs compared with controls. Carbachol resulted in increased airway contractions and branching in nitrofen-treated lungs. Nitrofen-treated lungs exhibited an increased number of proliferating Sox9-positive distal epithelial progenitor cells, which were decreased and normalized by treatment with carbachol. Verapamil inhibited the carbachol-induced airway contractions in nitrofen-treated lungs but had no effect on the carbachol-induced increase in airway branching, suggesting a direct carbachol effect independent of airway contractions. In vivo treatment of nitrofen-treated embryos via amniotic injection of carbachol at E10.5 resulted in modest increases in lung size and branching at E17.5. These results suggest that defective parasympathetic innervation may contribute to airway branching abnormalities in CDH. PMID:25934671

Use of Instructional Technologies by Teachers in the Educational Process: Metaphor Analysis Study

ERIC Educational Resources Information Center

Sarac, Hakan

2018-01-01

The aim of this research is to determine the thoughts of the teachers about the concepts of "Smart Board", "Computer", "Internet" and "Social Media" from the Instructional technologies of the secondary school teachers with different branches through metaphors. In the research, a qualitative research model…

Technological Development and Its Implications for Educational Planning.

ERIC Educational Resources Information Center

Sanyal, Bikas C.

The phenomenon of technological development has assumed great importance in the contemporary world. It is reflected in unprecedented growth in productivity with accompanying labor saving, in improvement of quality of products, in the launching of new products and services, and in the development of new branches of activity. This document reports…

NIH Employee Invention Report (EIR) | NCI Technology Transfer Center | TTC

Cancer.gov

NIH researchers must immediately contact their Laboratory or Branch Chief and inform him or her of a possible invention, and then consult with your NCI TTC Technology Transfer Manager about submitting an Employee Invention Report (EIR) Form. | [google6f4cd5334ac394ab.html

75 FR 75373 - Conduct of Employees and Former Employees; Exemption From Post-Employment Restrictions for...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-03

...; Exemption From Post- Employment Restrictions for Communications Furnishing Scientific or Technological... of the executive branch may obtain approval from DOE to make communications to DOE solely for the... communications to DOE solely for the purpose of furnishing scientific or technological information during the...

PHYSICAL VAPOR DEPOSITION OF TANTALUM ON GUN BARREL STEEL (SYSTEMS ANLAYSIS BRANCH, SUSTAINABLE TECHNOLOGY DIVISION, NRMRL)

EPA Science Inventory

This project entails the development of an alternative technology for plating gun barrel steel to replace the process electroplating of chrome (Cr-electroplate) with physical vapor deposition of tantalum (Ta-PVD). Developed by Benet Laboratory at Watervliet Arsenal, this project'...

Targeted nanosystems: Advances in targeted dendrimers for cancer therapy.

PubMed

Yang, Hu

2016-02-01

Dendrimers possess discrete highly compact nanostructures constituted of successive branched layers. Soon after the inception of dendrimers, recognition of their tunable structures and biologically favorable properties provoked a great enthusiasm in delving deeply into the utility of dendrimers for biomedical and pharmaceutical applications. One of the most important nanotechnology applications is the development of nanomedicines for targeted cancer therapies. Tremendous success in targeted therapies has been achieved with the use of dendrimer-based nanomedicines. This article provides a concise review on latest advances in the utility of dendrimers in immunotherapies and hormone therapies. Much basic and clinical research has been done since the invention of dendrimers, which are highly branched nano-sized molecules with the ability to act as carriers in nanomedicine. In this concise review article, the authors highlighted the current use of dendrimers in immunotherapies and hormone therapies in the fight against cancers. Copyright © 2015 Elsevier Inc. All rights reserved.

Near East/South Asia Report, No. 2746.

DTIC Science & Technology

1983-04-29

cooperation among the many and varied branches of media in the Islamic states taken its intended meaning so that this utilization and cooperation is... utilization [of these resources] during 1980 and 1981. Chapter XI. Human Resources This chapter consists of a study and analysis of figures dealing with the...recurring expenditure amounts to 1.146 billion dollars and development ex- penditure 1.086 billion dollars. Among the specialized banks, the

A novel treatment for keratitis sicca (Dry eye): Anatomical feasibility study.

PubMed

Iwanaga, Joe; Watanabe, Koichi; Kusukawa, Jingo; Fisahn, Christian; Alonso, Fernando; Oskouian, Rod J; Tubbs, R Shane

2017-09-01

Chronic dry eye (keratitis sicca) is a significant problem that in certain populations can result in corneal desiccation and the potential for blindness. Therefore, novel treatments for such disorders might decrease patient morbidity. The present study aimed to investigate a potential treatment for chronic dry eye via a cadaveric feasibility study. On 10 cadaveric sides, the parotid gland branch of the auriculotemporal nerve (ATN) was identified and anastomosed to an anterior superficial temporal branch (STb) of this same nerve. The STb was then transposed anteriorly and sutured to the lacrimal gland. The parotid branch of the ATN was easily identified on all sides. The STb of the ATN was easily identified and mobilized on all sides. This latter nerve had adequate length to be moved to the ipsilateral lacrimal gland on all sides. Rerouting parotid gland secretomotor fibers to the superficial branch of the ATN and then moving this branch to the lacrimal gland is a feasible surgical maneuver based on our cadaveric study. Clinical studies are now necessary to show utility of this procedure in patients with chronic dry eye. Clin. Anat. 30:839-843, 2017. © 2017Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

First-forbidden β decay of ^17N and ^17Ne.

NASA Astrophysics Data System (ADS)

Millener, D. J.

1997-04-01

By measuring positrons in coincidence with 495-keV γ rays de-exciting the 1/2^+ first-excited state of ^17F, Borge et al.(M. J. B. Borge et al.), Phys. Lett. B 317, 25 (1993). have obtained a branch of 1.65(16)% for the first-forbidden β^+ decay of ^17Ne to the 1/2^+ state. This is a very interesting result because the measured branch is roughly a factor of two larger than expected on the basis of nuclear matrix elements which reproduce the corresponding β^- branch of 3.0%(A. R. Poletti and J. G. Pronko, Phys. Rev. C 8), 1285 (1973);D. E. Alburger and D. H. Wilkinson, Phys. Rev. C 13, 835 (1976). in the decay of ^17N. Recently, Ozawa et al.(A. Ozawa et al.), preprint RIKEN-AF-NP-238. have confirmed the magnitude of the β branch in ^17Ne decay, obtaining a value of 1.44(16)% by a method which utilizes a 32 MeV/A radioactive beam of ^17Ne. It is shown that differences, due to charge-dependent effects, in the ^17N and ^17Ne ground-state wave functions account for both β-decay branches.

Assessment of RFID Read Accuracy for ISS Water Kit

NASA Technical Reports Server (NTRS)

Chu, Andrew

2011-01-01

The Space Life Sciences Directorate/Medical Informatics and Health Care Systems Branch (SD4) is assessing the benefits Radio Frequency Identification (RFID) technology for tracking items flown onboard the International Space Station (ISS). As an initial study, the Avionic Systems Division Electromagnetic Systems Branch (EV4) is collaborating with SD4 to affix RFID tags to a water kit supplied by SD4 and studying the read success rate of the tagged items. The tagged water kit inside a Cargo Transfer Bag (CTB) was inventoried using three different RFID technologies, including the Johnson Space Center Building 14 Wireless Habitat Test Bed RFID portal, an RFID hand-held reader being targeted for use on board the ISS, and an RFID enclosure designed and prototyped by EV4.

In situ fenestrations for the aortic arch and visceral segment: advances and challenges.

PubMed

Riga, Celia V; McWilliams, Richard G; Cheshire, Nicholas J W

2011-09-01

The management of complex aortic pathologies remains a major challenge particularly in the emergency setting. Bespoke fenestrated and branch stent graft technology has shown encouraging short- and mid-term results in selected patients. Despite tremendous technological advances in this field however, factors such as the inherent delay in device manufacturing, anatomical and technical challenges, high degree of planning, and cost hinder the wider applications of minimally invasive endovascular therapy. In situ fenestration of aortic stent grafts is an attractive alternative that eliminates the need for preoperative custom tailoring with the potential to widen the therapeutic options available and to offer a bailout option after inadvertent side branch occlusion. This article summarizes the principles of this technique and discusses its current applications.

Oral branched-chain amino acids decrease whole-body proteolysis

NASA Technical Reports Server (NTRS)

Ferrando, A. A.; Williams, B. D.; Stuart, C. A.; Lane, H. W.; Wolfe, R. R.

1995-01-01

BACKGROUND: This study reports the effects of ingesting branched-chain amino acids (leucine, valine, and isoleucine) on protein metabolism in four men. METHODS: To calculate leg protein synthesis and breakdown, we used a new model that utilized the infusion of L-[ring-13C6]phenylalanine and the sampling of the leg arterial-venous difference and muscle biopsies. In addition, protein-bound enrichments provided for the direct calculation of muscle fractional synthetic rate. Four control subjects ingested an equivalent amount of essential amino acids (threonine, methionine, and histidine) to discern the effects of branched-chain amino acid nitrogen vs the effects of essential amino acid nitrogen. Each drink also included 50 g of carbohydrate. RESULTS: Consumption of the branched-chain and the essential amino acid solutions produced significant threefold and fourfold elevations in their respective arterial concentrations. Protein synthesis and breakdown were unaffected by branched-chain amino acids, but they increased by 43% (p < .05) and 36% (p < .03), respectively, in the group consuming the essential amino acids. However, net leg balance of phenylalanine was unchanged by either drink. Direct measurement of protein synthesis by tracer incorporation into muscle protein (fractional synthetic rate) revealed no changes within or between drinks. Whole-body phenylalanine flux was significantly suppressed by each solution but to a greater extent by the branched-chain amino acids (15% and 20%, respectively) (p < .001). CONCLUSIONS: These results suggest that branched-chain amino acid ingestion suppresses whole-body proteolysis in tissues other than skeletal muscle in normal men.

Early convergence research and education supported by the National Science Foundation.

PubMed

Bainbridge, William Sims

2004-05-01

The following pages describe research grants awarded by the National Science Foundation that illustrate how different fields of science and technology can converge in order to increase human potential. Technological convergence involves the unification of the sciences of Nanotechnology, Biotechnology, Information Technology, and new technologies based on Cognitive Science (NBIC). Because it supports research across all major branches of science and technology, including the social and behavioral sciences, the NSF has been a focus of discussions about converging technologies to enhance human capabilities and serve human needs.

Electronic Photography at the NASA Langley Research Center

NASA Technical Reports Server (NTRS)

Holm, Jack; Judge, Nancianne

1995-01-01

An electronic photography facility has been established in the Imaging & Photographic Technology Section, Visual Imaging Branch, at the NASA Langley Research Center (LaRC). The purpose of this facility is to provide the LaRC community with access to digital imaging technology. In particular, capabilities have been established for image scanning, direct image capture, optimized image processing for storage, image enhancement, and optimized device dependent image processing for output. Unique approaches include: evaluation and extraction of the entire film information content through scanning; standardization of image file tone reproduction characteristics for optimal bit utilization and viewing; education of digital imaging personnel on the effects of sampling and quantization to minimize image processing related information loss; investigation of the use of small kernel optimal filters for image restoration; characterization of a large array of output devices and development of image processing protocols for standardized output. Currently, the laboratory has a large collection of digital image files which contain essentially all the information present on the original films. These files are stored at 8-bits per color, but the initial image processing was done at higher bit depths and/or resolutions so that the full 8-bits are used in the stored files. The tone reproduction of these files has also been optimized so the available levels are distributed according to visual perceptibility. Look up tables are available which modify these files for standardized output on various devices, although color reproduction has been allowed to float to some extent to allow for full utilization of output device gamut.

Super-Resolution of Plant Disease Images for the Acceleration of Image-based Phenotyping and Vigor Diagnosis in Agriculture.

PubMed

Yamamoto, Kyosuke; Togami, Takashi; Yamaguchi, Norio

2017-11-06

Unmanned aerial vehicles (UAVs or drones) are a very promising branch of technology, and they have been utilized in agriculture-in cooperation with image processing technologies-for phenotyping and vigor diagnosis. One of the problems in the utilization of UAVs for agricultural purposes is the limitation in flight time. It is necessary to fly at a high altitude to capture the maximum number of plants in the limited time available, but this reduces the spatial resolution of the captured images. In this study, we applied a super-resolution method to the low-resolution images of tomato diseases to recover detailed appearances, such as lesions on plant organs. We also conducted disease classification using high-resolution, low-resolution, and super-resolution images to evaluate the effectiveness of super-resolution methods in disease classification. Our results indicated that the super-resolution method outperformed conventional image scaling methods in spatial resolution enhancement of tomato disease images. The results of disease classification showed that the accuracy attained was also better by a large margin with super-resolution images than with low-resolution images. These results indicated that our approach not only recovered the information lost in low-resolution images, but also exerted a beneficial influence on further image analysis. The proposed approach will accelerate image-based phenotyping and vigor diagnosis in the field, because it not only saves time to capture images of a crop in a cultivation field but also secures the accuracy of these images for further analysis.

7 CFR 996.40 - Handling standards.

Code of Federal Regulations, 2010 CFR

2010-01-01

... importers may contact: Fresh Products Branch, Fruit and Vegetable Programs, AMS, USDA, 1400 Independence... Epstein, Deputy Administrator, Science and Technology Programs, AMS, USDA, 1400 Independence Avenue, SW...

7 CFR 996.40 - Handling standards.

Code of Federal Regulations, 2012 CFR

2012-01-01

... importers may contact: Fresh Products Branch, Fruit and Vegetable Programs, AMS, USDA, 1400 Independence... Epstein, Deputy Administrator, Science and Technology Programs, AMS, USDA, 1400 Independence Avenue, SW...

7 CFR 996.40 - Handling standards.

Code of Federal Regulations, 2013 CFR

2013-01-01

... importers may contact: Fresh Products Branch, Fruit and Vegetable Programs, AMS, USDA, 1400 Independence... Epstein, Deputy Administrator, Science and Technology Programs, AMS, USDA, 1400 Independence Avenue, SW...

7 CFR 996.40 - Handling standards.

Code of Federal Regulations, 2014 CFR

2014-01-01

... importers may contact: Fresh Products Branch, Fruit and Vegetable Programs, AMS, USDA, 1400 Independence... Epstein, Deputy Administrator, Science and Technology Programs, AMS, USDA, 1400 Independence Avenue, SW...

7 CFR 996.40 - Handling standards.

Code of Federal Regulations, 2011 CFR

2011-01-01

... importers may contact: Fresh Products Branch, Fruit and Vegetable Programs, AMS, USDA, 1400 Independence... Epstein, Deputy Administrator, Science and Technology Programs, AMS, USDA, 1400 Independence Avenue, SW...

Research experiments at Hangar L

NASA Technical Reports Server (NTRS)

2000-01-01

Research technician Lisa Ruffa works with a wheat sample that is part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. The payload process testing is one of many studies being performed at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship.

2017 Science and Technology Jamboree

NASA Image and Video Library

2017-12-08

NASA Marshall Space Flight Center’s Science and Technology Office held its 11th annual Science and Technology Jamboree Dec. 8 at Marshall Activities Building 4316. A poster session with around 60 poster presentations highlighted current science and technology topics and the innovative projects underway across the center. Here, Debra Needham, right, talks with coworker Sabrina Savage about one of the presentations. Both Needham and Savage are scientists in the Heliophysics & Planetary Science Branch of the Science Research and Projects Division.

Vascular anatomy of the medial sural artery perforator flap: a new classification system of intra-muscular branching patterns.

PubMed

Dusseldorp, Joseph R; Pham, Quy J; Ngo, Quan; Gianoutsos, Mark; Moradi, Pouria

2014-09-01

The medial sural artery perforator (MSAP) flap is a versatile fasciocutaneous flap. The main difficulty encountered when raising the MSAP flap is in obtaining adequate pedicle length during intra-muscular dissection. The objective of this study was to determine the pattern of intra-muscular course of the MSAP flap pedicle. 14 cadaveric specimens were dissected and CT angiograms of 84 legs were examined. The intra-muscular branching pattern and depths of the medial sural artery branches were analyzed. The number of perforators, position of the dominant perforator and both intra-muscular and total pedicle length were also recorded and compared to existing anatomical data. Three types of arterial branching pattern were identified within the medial gastrocnemius, demonstrating one (31%), two (59%) or three or more (10%) main branches. A dominant perforator from the medial sural artery was present in 92% of anatomical specimens (13/14). Vertically, the location of the perforator from the popliteal crease was on average 13 cm (±2 cm). Transversely, the perforator originated 2.5 cm (±1 cm) from the posterior midline. Using CT angiography it was possible in 10 consecutive patients to identify a more superficial intra-muscular branch and determine the leg with the optimal branching pattern type for flap harvest. This study is the first to describe the variability of the intra-muscular arterial anatomy of the medial head of gastrocnemius muscle. Surgeons utilizing the MSAP flap option should be aware of the possible branching pattern types and consequently the differing perforator distribution and depths of intra-muscular branches. Routine use of pre-operative CT angiogram may help determine which leg has the most favorable branching pattern type and intra-muscular course for flap harvest. Copyright © 2014 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.

In Situ Quantification of Experimental Ice Accretion on Tree Crowns Using Terrestrial Laser Scanning

PubMed Central

Nock, Charles A.; Greene, David; Delagrange, Sylvain; Follett, Matt; Fournier, Richard; Messier, Christian

2013-01-01

In the eastern hardwood forests of North America ice storms are an important disturbance event. Ice storms strongly influence community dynamics as well as urban infrastructure via catastrophic branch failure; further, the severity and frequency of ice storms are likely to increase with climate change. However, despite a long-standing interest into the effects of freezing rain on forests, the process of ice accretion and thus ice loading on branches remains poorly understood. This is because a number of challenges have prevented in situ measurements of ice on branches, including: 1) accessing and measuring branches in tall canopies, 2) limitations to travel during and immediately after events, and 3) the unpredictability of ice storms. Here, utilizing a novel combination of outdoor experimental icing, manual measurements and terrestrial laser scanning (TLS), we perform the first in situ measurements of ice accretion on branches at differing heights in a tree crown and with increasing duration of exposure. We found that TLS can reproduce both branch and iced branch diameters with high fidelity, but some TLS instruments do not detect ice. Contrary to the expectations of ice accretion models, radial accretion varied sharply within tree crowns. Initially, radial ice accretion was similar throughout the crown, but after 6.5 hours of irrigation (second scanning) radial ice accretion was much greater on upper branches than on lower (∼factor of 3). The slope of the change in radial ice accretion along branches increased with duration of exposure and was significantly greater at the second scanning compared to the first. We conclude that outdoor icing experiments coupled with the use of TLS provide a robust basis for evaluation of models of ice accretion and breakage in tree crowns, facilitating estimation of the limiting breaking stress of branches by accurate measurements of ice loads. PMID:23741409

Administrative Services Division - Alaska Department of Law

Science.gov Websites

Attorney General Opinions Executive Branch Ethics Criminal Justice Alaska Medicaid Fraud Control Anchorage digital communication. Department-wide Information Technology issues, strategic planning, resource

English for Science and Technology: Profiles and Perspectives.

ERIC Educational Resources Information Center

Orr, Thomas, Ed.

This report contains a collection of articles that document the evolution of English for Science and Technology (EST) instruction and research--one of the earliest and most active branches of English for Specific Purposes (ESP). Articles included are: (1) "WWW-Based Instruction for EST" (Roy Bowers); (2) "English for Medical Purposes in Mexico: A…

A Mobile Tool for Learning English Words

ERIC Educational Resources Information Center

Cavus, Nadire; Ibrahim, Dogan

2008-01-01

Technology is changing very rapidly and nearly all branches of education are affected by these changes. As a result of these rapid changes there has been significant interest and growth in the number of educational institutions using mobile devices to support learning and teaching. There is also an increase use of wireless technologies in…

Development and Testing of an Experimental Mobile Instructional Facility for Applied Courses in Engineering Technology.

ERIC Educational Resources Information Center

Kleine, Louis W.

The experimental pilot project was conducted to determine whether students who take the laboratory phase of an engineering technology applied electricity course in a mobile laboratory at branch schools demonstrate proficiency comparable to students who take the applied electricity course in permanent facilities at the parent institution. The…

Emotional Intelligence: A Key to Improving Federal Chief Information Officer Management

ERIC Educational Resources Information Center

Borkowski, Tammy M.

2012-01-01

The United States Government relies on information technology to provide services to its citizens, spending more than $600 billion on its products and services in the last decade. Given the current fiscal climate, the Executive Branch of the United States Government has a renewed focus on information technology (IT) innovation, requiring federal…

3 CFR 13515 - Executive Order 13515 of October 14, 2009. Increasing Participation of Asian Americans and...

Code of Federal Regulations, 2010 CFR

2010-01-01

... to science and technology, culture and the arts, and the professions, including business, law... members who: (i) have a history of involvement with the AAPI communities; (ii) are from the fields of...; (xxiii) the Office of Science and Technology Policy; and (xxiv) other executive branch departments...

Chemical synthesis and characterization of branched oligodeoxyribonucleotides (bDNA) for use as signal amplifiers in nucleic acid quantification assays.

PubMed

Horn, T; Chang, C A; Urdea, M S

1997-12-01

The divergent synthesis of bDNA structures is described. This new type of branched DNA contains one unique oligonucleotide, the primary sequence, covalently attached through a comb-like branching network to many identical copies of a different oligonucleotide, the secondary sequence. The bDNA comb molecules were assembled on a solid support using parameters optimized for bDNA synthesis. The chemistry was used to synthesize bDNA comb molecules containing 15 secondary sequences. The bDNA comb molecules were elaborated by enzymatic ligation into branched amplification multimers, large bDNA molecules (a total of 1068 nt) containing an average of 36 repeated DNA oligomer sequences, each capable of hybridizing specifically to an alkaline phosphatase-labeled oligonucleotide. The bDNA comb molecules were characterized by electrophoretic methods and by controlled cleavage at periodate-cleavable moieties incorporated during synthesis. The branched amplification multimers have been used as signal amplifiers in nucleic acid quantification assays for detection of viral infection. It is possible to detect as few as 50 molecules with bDNA technology.

Chemical synthesis and characterization of branched oligodeoxyribonucleotides (bDNA) for use as signal amplifiers in nucleic acid quantification assays.

PubMed Central

Horn, T; Chang, C A; Urdea, M S

1997-01-01

The divergent synthesis of bDNA structures is described. This new type of branched DNA contains one unique oligonucleotide, the primary sequence, covalently attached through a comb-like branching network to many identical copies of a different oligonucleotide, the secondary sequence. The bDNA comb molecules were assembled on a solid support using parameters optimized for bDNA synthesis. The chemistry was used to synthesize bDNA comb molecules containing 15 secondary sequences. The bDNA comb molecules were elaborated by enzymatic ligation into branched amplification multimers, large bDNA molecules (a total of 1068 nt) containing an average of 36 repeated DNA oligomer sequences, each capable of hybridizing specifically to an alkaline phosphatase-labeled oligonucleotide. The bDNA comb molecules were characterized by electrophoretic methods and by controlled cleavage at periodate-cleavable moieties incorporated during synthesis. The branched amplification multimers have been used as signal amplifiers in nucleic acid quantification assays for detection of viral infection. It is possible to detect as few as 50 molecules with bDNA technology. PMID:9365266

[Hi-tech center of outpatient care (To the 40th anniversary of the Branch N 6 of the Vishnevsky Central military clinical hospital N 3)].

PubMed

Popov, A P

2015-10-01

The authors present the history of the branch N 6 of the Federal States Organization "the Vishnevsky Central Military Clinical Hospital N 3" of the Ministry of Defense of the Russian Federation, which dates back to November 1, 1974. Over the past years, organizational and staff structure; and the name of the clinic (45th central polyclinic, 45th central consultative-diagnostic polyclinic, 52nd Advisory Diagnostic Center of Defense) has repeatedly changed, but the core the work stays unchangeable--to continually improve patient care technology, to be the leader in the outpatient care for soldiers, reserve officers (retired), members of their families. The. branch consists of 58 medical and 19 specialized diagnostic departments, including 4 hospital departments, 1845 employee work at the branch. Among them 4 doctors of medical science and 43 candidates of medical sciences, 20 honoured physicians and 10 honoured health workers of republic. 70% of doctors and 93% of nurses have the highest qualification category. To health care in the Branch are more than 110 thousand people.

7 CFR 91.42 - Billing.

Code of Federal Regulations, 2012 CFR

2012-01-01

... voluntary laboratory services and other services were rendered at a particular Science and Technology..., National Finance Center Billings and Collection Branch, (Mail: P.O. Box 60075), 13800 Old Gentilly Road...

7 CFR 91.42 - Billing.

Code of Federal Regulations, 2014 CFR

2014-01-01

... voluntary laboratory services and other services were rendered at a particular Science and Technology..., National Finance Center Billings and Collection Branch, (Mail: P.O. Box 60075), 13800 Old Gentilly Road...

7 CFR 91.42 - Billing.

Code of Federal Regulations, 2010 CFR

2010-01-01

... voluntary laboratory services and other services were rendered at a particular Science and Technology..., National Finance Center Billings and Collection Branch, (Mail: P.O. Box 60075), 13800 Old Gentilly Road...

7 CFR 91.42 - Billing.

Code of Federal Regulations, 2013 CFR

2013-01-01

... voluntary laboratory services and other services were rendered at a particular Science and Technology..., National Finance Center Billings and Collection Branch, (Mail: P.O. Box 60075), 13800 Old Gentilly Road...

7 CFR 91.42 - Billing.

Code of Federal Regulations, 2011 CFR

2011-01-01

... voluntary laboratory services and other services were rendered at a particular Science and Technology..., National Finance Center Billings and Collection Branch, (Mail: P.O. Box 60075), 13800 Old Gentilly Road...

Integrated cloud infrastructure of the LIT JINR, PE "NULITS" and INP's Astana branch

NASA Astrophysics Data System (ADS)

Mazhitova, Yelena; Balashov, Nikita; Baranov, Aleksandr; Kutovskiy, Nikolay; Semenov, Roman

2018-04-01

The article describes the distributed cloud infrastructure deployed on the basis of the resources of the Laboratory of Information Technologies of the Joint Institute for Nuclear Research (LIT JINR) and some JINR Member State organizations. It explains a motivation of that work, an approach it is based on, lists of its participants among which there are private entity "Nazarbayev University Library and IT services" (PE "NULITS") Autonomous Education Organization "Nazarbayev University" (AO NU) and The Institute of Nuclear Physics' (INP's) Astana branch.

A Broadband High-Gain Bi-Layer Log-Periodic Dipole Array (LPDA) for Ultra High Frequency (UHF) Conformal Load Bearing Antenna Structures (CLAS) Applications

DTIC Science & Technology

2014-08-01

AFRL-RQ-WP-TR-2014-0212 University of South Carolina Department of Electrical Engineering Columbia, SC 29208 Structures Technology Branch...S2603-04-C01. Cleared for Public Release - Case Number: . Nicholas Bishop and M. Ali are with the Department of Electrical Engineering, University of...Lower substrate Upper substrate Foam core Coax Feed tube LPDA traces Coax inner conductor Feed tube Copper plate Input 88ABW-2014-3668, 8

KSC00pp0697

NASA Image and Video Library

2000-05-01

Researchers work with wheat samples that are part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. From left are research scientist Oscar Monje and research technicians Lisa Ruffa and Ignacio Eraso. The payload process testing they are performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

KSC-00pp0697

NASA Image and Video Library

2000-05-01

Researchers work with wheat samples that are part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. From left are research scientist Oscar Monje and research technicians Lisa Ruffa and Ignacio Eraso. The payload process testing they are performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship

JPRS Report. Soviet Union, EKO: Economics & Organization of Industrial Production No. 7, July 1987.

DTIC Science & Technology

1987-12-03

to the question of the interest in plasma equip- ment in various branches of the national economy. Plasma processes occupy a leading position among...the principally new technologies that are based on process - ing concentrated flows of energy. Even today there are more than 50 of them. An entire...branch of chemistry has been formed—plasma chemistry, for which it is typical to have processes with an average mass temperature of the working gas

Lewis Research Center battery overview

NASA Technical Reports Server (NTRS)

Odonnell, Patricia

1993-01-01

The topics covered are presented in viewgraph form and include the following: the Advanced Communications Technology Satellite; the Space Station Freedom (SSF) photovoltaic power module division; Ni/H2 battery and cell design; individual pressure vessel (IPV) nickel-hydrogen cell testing SSF support; the LeRC Electrochemical Technology Branch; improved design IPV nickel-hydrogen cells; advanced technology for IPV nickel-hydrogen flight cells; a lightweight nickel-hydrogen cell; bipolar nickel-hydrogen battery development and technology; aerospace nickel-metal hydride cells; the NASA Sodium-Sulfur Cell Technology Flight Experiment; and the lithium-carbon dioxide battery thermodynamic model.

14 CFR 1204.401 - Policy.

Code of Federal Regulations, 2010 CFR

2010-01-01

... educational institutions the opportunity to participate equitably and proportionately in its total purchases... the specific branch of science or technology required for the successful conduct of the work. It is in...

Flight Dynamics Analysis Branch 2005 Technical Highlights

NASA Technical Reports Server (NTRS)

2005-01-01

This report summarizes the major activities and accomplishments carried out by the Flight Dynamics Analysis Branch (FDAB), Code 595, in support of flight projects and technology development initiatives in Fiscal Year (FY) 2005. The report is intended to serve as a summary of the type of support carried out by the FDAB, as well as a concise reference of key accomplishments and mission experience derived from the various mission support roles. The primary focus of the FDAB is to provide expertise in the disciplines of flight dynamics including spacecraft navigation (autonomous and ground based); spacecraft trajectory design and maneuver planning; attitude analysis; attitude determination and sensor calibration; and attitude control subsystem (ACS) analysis and design. The FDAB currently provides support for missions and technology development projects involving NASA, other government agencies, academia, and private industry.

Quantification of cytokine mRNA in peripheral blood mononuclear cells using branched DNA (bDNA) technology.

PubMed

Shen, L P; Sheridan, P; Cao, W W; Dailey, P J; Salazar-Gonzalez, J F; Breen, E C; Fahey, J L; Urdea, M S; Kolberg, J A

1998-06-01

Changes in the patterns of cytokine expression are thought to be of central importance in human infectious and inflammatory diseases. As such, there is a need for precise, reproducible assays for quantification of cytokine mRNA that are amenable to routine use in a clinical setting. In this report, we describe the design and performance of a branched DNA (bDNA) assay for the direct quantification of multiple cytokine mRNA levels in peripheral blood mononuclear cells (PBMCs). Oligonucleotide target probe sets were designed for several human cytokines, including TNFalpha, IL-2, IL-4, IL-6, IL-10, and IFNgamma. The bDNA assay yielded highly reproducible quantification of cytokine mRNAs, exhibited a broad linear dynamic range of over 3-log10, and showed a sensitivity sufficient to measure at least 3000 molecules. The potential clinical utility of the bDNA assay was explored by measuring cytokine mRNA levels in PBMCs from healthy and immunocompromised individuals. Cytokine expression levels in PBMCs from healthy blood donors were found to remain relatively stable over a one-month period of time. Elevated levels of IFNgamma mRNA were detected in PBMCs from HIV-1 seropositive individuals, but no differences in mean levels of TNFalpha or IL-6 mRNA were detected between seropositive and seronegative individuals. By providing a reproducible method for quantification of low abundance transcripts in clinical specimens, the bDNA assay may be useful for studies addressing the role of cytokine expression in disease.

Reengineering legacy software to object-oriented systems

NASA Technical Reports Server (NTRS)

Pitman, C.; Braley, D.; Fridge, E.; Plumb, A.; Izygon, M.; Mears, B.

1994-01-01

NASA has a legacy of complex software systems that are becoming increasingly expensive to maintain. Reengineering is one approach to modemizing these systems. Object-oriented technology, other modem software engineering principles, and automated tools can be used to reengineer the systems and will help to keep maintenance costs of the modemized systems down. The Software Technology Branch at the NASA/Johnson Space Center has been developing and testing reengineering methods and tools for several years. The Software Technology Branch is currently providing training and consulting support to several large reengineering projects at JSC, including the Reusable Objects Software Environment (ROSE) project, which is reengineering the flight analysis and design system (over 2 million lines of FORTRAN code) into object-oriented C++. Many important lessons have been learned during the past years; one of these is that the design must never be allowed to diverge from the code during maintenance and enhancement. Future work on open, integrated environments to support reengineering is being actively planned.

Security training with interactive laser-video-disk technology

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

Wilson, D.

1988-01-01

DOE, through its contractor EG and G Energy Measurements, Inc., has developed a state-of-the-art interactive-video system for use at the Department of Energy's Central Training Academy. Called the Security Training and Evaluation Shooting System (STRESS), the computer-driven decision shooting system employs the latest is laservideo-disk technology. STRESS is designed to provide realistic and stressful training for security inspectors employed by the DOE and its contractors. The system uses wide-screen video projection, sophisticated scenario-branching technology, and customized video scenarios especially designed for the DOE. Firing a weapon that has been modified to shoot ''laser bullets,'' and wearing a special vest thatmore » detects ''hits'': the security inspector encounters adversaries on the wide screen who can shoot or be shot by the inspector in scenarios that demand fast decisions. Based on those decisions, the computer provides instantaneous branching to different scenes, giving the inspector confrontational training with the realism and variability of real life.« less

The CTSA as an Exemplar Framework for Developing Multidisciplinary Translational Teams

PubMed Central

Calhoun, William J.; Wooten, Kevin; Bhavnani, Suresh; Anderson, Karl E.; Freeman, Jean

2012-01-01

Abstract Translational science requires that scientists from multiple disciplines work together to improve the prevention, diagnosis, and treatment of human disease. Although a literature exists on the design and management of multidisciplinary teams, little has been written on multidisciplinary translational teams (MTTs). MTTs are distinct hybrid entities, with goals taken from both industry and academic models. We identified 30 design factors in 10 domains from a literature survey relevant to our MTT model: specific goals, structures, and processes. These dimensions were adapted to our own institutional environment in the selection and management of 11 MTTs that exploited resources of University of Texas Medical Branch (UTMB) Clinical and Translational Sciences Awards (CTSA). Case illustrations of two specific MTTs illustrate some of the challenges encountered and opportunities realized in terms of education and scientific advances. Network depiction of disciplinarity indicated that CTSA KRs and CTSA leadership contributed to discipline diversity especially in small (or nascent) MTTs. A separate depiction of MTT‐KR utilization indicated that data analysis, translational technologies, and novel methods were heavily utilized by MTTs, whereas other KRs contributed significant effort to infrastructure development. We conclude that the CTSA can provide a rich 
infrastructural framework and scientific environment for the development of successful MTTs. Clin Trans Sci 2013; Volume 6: 60–71 PMID:23399092

Strategy of Irrigation Branch in Russia

NASA Astrophysics Data System (ADS)

Zeyliger, A.; Ermolaeva, O.

2012-04-01

At this moment, at the starting time of the program on restoration of a large irrigation in Russia till 2020, the scientific and technical community of irrigation branch does not have clear vision on how to promote a development of irrigated agriculture and without repeating of mistakes having a place in the past. In many respects absence of a vision is connected to serious backlog of a scientific and technical and informational and technological level of development of domestic irrigation branch from advanced one. Namely such level of development is necessary for the resolving of new problems in new conditions of managing, and also for adequate answers to new challenges from climate and degradation of ground & water resources, as well as a rigorous requirement from an environment. In such important situation for irrigation branch when it is necessary quickly generate a scientific and technical politics for the current decade for maintenance of translation of irrigated agriculture in the Russian Federation on a new highly effective level of development, in our opinion, it is required to carry out open discussion of needs and requirements as well as a research for a adequate solutions. From political point of view a framework organized in FP6 DESIRE 037046 project is an example of good practice that can serve as methodical approach how to organize and develop such processes. From technical point of view a technology of operational management of irrigation at large scale presents a prospective alternative to the current type of management based on planning. From point of view ICT operational management demands creation of a new platform for the professional environment of activity. This platform should allow to perceive processes in real time, at their partial predictability on signals of a straight line and a feedback, within the framework of variability of decision making scenarious, at high resolution and the big ex-awning of sensor controls and the gauges supervising parameters of system, fast proper response to changes in behaviour of controlled system, and all this on a firm support on the creative professional approach of the staff to execution of the professional duties. Development of such professional environment cannot be solved for a short time interval and within the framework of several projects, and will demand the interconnected and purposeful actions directed on extensive information - technological development of administrative and operational segments of irrigation branch. For this purpose it is necessary to develop, create and use the interconnected elements of information - technological developments shown by us in four directions and entitled: 1) Technologies; 2) Infrastructure; 3) Staff; 4) Tools. These four elements will be discussed in a contribution.

Improved Personalized Cancer Immunotherapy | NCI Technology Transfer Center | TTC

Cancer.gov

The National Cancer Institute’s Surgery Branch seeks partners interested in collaborative research to co-develop adoptive transfer of tumor infiltrating leukocytes (TIL) for cancers other than melanoma.

[Advances in sensor node and wireless communication technology of body sensor network].

PubMed

Lin, Weibing; Lei, Sheng; Wei, Caihong; Li, Chunxiang; Wang, Cang

2012-06-01

With the development of the wireless communication technology, implantable biosensor technology, and embedded system technology, Body Sensor Network (BSN) as one branch of wireless sensor networks and important part of the Internet of things has caught more attention of researchers and enterprises. This paper offers the basic concept of the BSN and analyses the related research. We focus on sensor node and wireless communication technology from perspectives of technology challenges, research advance and development trend in the paper. Besides, we also present a relative overview of domestic and overseas projects for the BSN.

Aeronautical education and research at the Swiss Institute of Technology in Zurich

NASA Technical Reports Server (NTRS)

Karner, L; Ackeret, J

1931-01-01

Progress in the scientific and practical fields of aviation has caused the Swiss Institute of Technology to organize lectures and practical training courses in all three branches of aeronautics and to found centers of scientific research, laboratories, etc., in order to supply the government and industries with scientifically and technically trained engineers.

Development of a Self-Efficacy Scale of Technology Usage in Education

ERIC Educational Resources Information Center

Dogru, Mustafa

2017-01-01

The purpose of this study was to develop a scale instrument to allow us to establish the self-efficacies of elementary education teachers regarding their use of information technologies when educating their students. The study group comprised a total of 924 teachers from different branches working in central Ankara elementary schools. Based on the…

Needs Analysis for Graphic Design Learning Module Based on Technology & Learning Styles of Deaf Students

ERIC Educational Resources Information Center

Ibrahim, Zainuddin; Alias, Norlidah; Nordin, Abu Bakar

2016-01-01

The field of Information Communication Technology has offered a promising future for deaf students. Web design, animation, and multimedia application design are a branch of graphic design area, which aim to aid their learning visually. However, most of the technical terms cannot be interpreted in Malaysian sign language. Moreover, the development…

Synthesis of porous carbon nanofiber with bamboo-like carbon nanofiber branches by one-step carbonization process

NASA Astrophysics Data System (ADS)

Yoo, Seung Hwa; Joh, Han-Ik; Lee, Sungho

2017-04-01

Porous carbon nanofibers (PCNFs) with CNF branches (PCNF/bCNF) were synthesized by a simple heat treatment method. Conventional methods to synthesize this unique structure usually follow a typical route, which consists of CNF preparation, catalyst deposition, and secondary CNF growth. In contrast, our method utilized a one-step carbonization process of polymer nanofibers, which were electrospun from a one-pot solution consisted of polyacrylonitrile, polystyrene (PS), and iron acetylacetonate. Various structures of PCNF/CNF were synthesized by changing the solution composition and molecular weight of PS. It was verified that the content and molecular weight of PS were critical for the growth of catalyst particles and subsequent growth of CNF branches. The morphology, phase of catalyst, and carbon structure of PCNF/bCNF were analyzed at different temperature steps during carbonization. It was found that pores were generated by the evaporation of PS and the catalyst particles were formed on the surface of PCNF at 700 °C. The gases originated from the evaporation of PS acted as a carbon source for the growth of CNF branches that started at 900 °C. Finally, when the carbonization process was finished at 1200 °C, uniform and abundant CNF branches were formed on the surface of PCNF.

Expected Utility Distributions for Flexible, Contingent Execution

NASA Technical Reports Server (NTRS)

Bresina, John L.; Washington, Richard

2000-01-01

This paper presents a method for using expected utility distributions in the execution of flexible, contingent plans. A utility distribution maps the possible start times of an action to the expected utility of the plan suffix starting with that action. The contingent plan encodes a tree of possible courses of action and includes flexible temporal constraints and resource constraints. When execution reaches a branch point, the eligible option with the highest expected utility at that point in time is selected. The utility distributions make this selection sensitive to the runtime context, yet still efficient. Our approach uses predictions of action duration uncertainty as well as expectations of resource usage and availability to determine when an action can execute and with what probability. Execution windows and probabilities inevitably change as execution proceeds, but such changes do not invalidate the cached utility distributions, thus, dynamic updating of utility information is minimized.

Effects of crop load on distribution and utilization of 13C and 15N and fruit quality for dwarf apple trees.

PubMed

Ding, Ning; Chen, Qian; Zhu, Zhanling; Peng, Ling; Ge, Shunfeng; Jiang, Yuanmao

2017-10-26

In order to define the effects of fruit crop load on the distribution and utilization of carbon and nitrogen in dwarf apple trees, we conducted three crop load levels (High-crop load, 6 fruits per trunk cross-sectional area (cm 2 , TCA)), Medium-crop load (4 fruits cm -2 TCA), Low-crop load (2 fruits cm -2 TCA)) in 2014 and 2015. The results indicated that the 15 N derived from fertilizer (Ndff) values of fruits decreased with the reduction of crop load, but the Ndff values of annual branches, leaves and roots increased. The plant 15 N-urea utilization rates on Medium and Low-crop load were 1.12-1.35 times higher than the High-crop load. With the reduction of crop load, the distribution rate of 13 C and 15 N in fruits was gradually reduced, but in contrast, the distribution of 13 C and 15 N gradually increased in annual branches, leaves and roots. Compared with High-crop load, the Medium and Low-crop load significantly improved fruit quality p < 0.05. Hence, controlling fruit load effectively regulated the distribution of carbon and nitrogen in plants, improved the nitrogen utilization rate and fruit quality. The appropriate crop load level for mature M.26 interstocks apple orchards was deemed to be 4.0 fruits cm -2 TCA.

Isolation and Purification of Condensed Tannin from the Leaves and Branches of Prunus cerasifera and Its Structure and Bioactivities.

PubMed

Song, Wei; Qin, Shao-Tong; Fang, Fei-Xiang; Gao, Zhen-Jiang; Liang, Dan-Dan; Liu, Lu-Lu; Tian, Hong-Tao; Yang, Hai-Bo

2018-06-01

Prunus cerasifera has a rich resource and a weak utilization rate and its biological functions have been investigated. We found that the contents of total phenol (TP) in leaves and branches of Prunus cerasifera were 117.8 ± 8.8 and 100.04 ± 0.9 mg/g, respectively; the contents of soluble condensed tannin (SCT) were 73.95 ± 0.9 and 78.65 ± 4.1 mg/g, respectively; the structure of SCT containing afzelechin/epiafzelechin, catechin/epicatechin, and atechin/epicatechin as the main units and the SCT from leaves and branches exhibited better anti-tyrosinase and antioxidant activities. This study could clarify Prunus cerasifera condensed tannin resource availability and lay a theoretical foundation for its development as a natural antioxidant and tyrosinase inhibitor.

Principle component analysis and linear discriminant analysis of multi-spectral autofluorescence imaging data for differentiating basal cell carcinoma and healthy skin

NASA Astrophysics Data System (ADS)

Chernomyrdin, Nikita V.; Zaytsev, Kirill I.; Lesnichaya, Anastasiya D.; Kudrin, Konstantin G.; Cherkasova, Olga P.; Kurlov, Vladimir N.; Shikunova, Irina A.; Perchik, Alexei V.; Yurchenko, Stanislav O.; Reshetov, Igor V.

2016-09-01

In present paper, an ability to differentiate basal cell carcinoma (BCC) and healthy skin by combining multi-spectral autofluorescence imaging, principle component analysis (PCA), and linear discriminant analysis (LDA) has been demonstrated. For this purpose, the experimental setup, which includes excitation and detection branches, has been assembled. The excitation branch utilizes a mercury arc lamp equipped with a 365-nm narrow-linewidth excitation filter, a beam homogenizer, and a mechanical chopper. The detection branch employs a set of bandpass filters with the central wavelength of spectral transparency of λ = 400, 450, 500, and 550 nm, and a digital camera. The setup has been used to study three samples of freshly excised BCC. PCA and LDA have been implemented to analyze the data of multi-spectral fluorescence imaging. Observed results of this pilot study highlight the advantages of proposed imaging technique for skin cancer diagnosis.

Effect of Aromatic Compounds on Cellular Fatty Acid Composition of Rhodococcus opacus

PubMed Central

Tsitko, Irina V.; Zaitsev, Gennadi M.; Lobanok, Anatoli G.; Salkinoja-Salonen, Mirja S.

1999-01-01

In cells of Rhodococcus opacus GM-14, GM-29, and 1CP, the contents of branched (10-methyl) fatty acids increased from 3% to 15 to 34% of the total fatty acids when the cells were grown on benzene, phenol, 4-chlorophenol, chlorobenzene, or toluene as the sole source of carbon and energy, in comparison with cells grown on fructose. In addition, the content of trans-hexadecenoic acid increased from 5% to 8 to 18% with phenol or chlorophenol as the carbon source. The 10-methyl branched fatty acid content of R. opacus GM-14 cells increased in a dose-related manner following exposure to phenol or toluene when toluene was not utilized as the growth substrate. The results suggest that 10-methyl branched fatty acids may participate in the adaptation of R. opacus to lipophilic aromatic compounds. PMID:9925629

Peripheral nervous control of cold-induced reduction in the respiratory quotient of the rat

NASA Astrophysics Data System (ADS)

Refinetti, Roberto

1990-03-01

Cold-exposed rats show a reduction in the respiratory quotient which is indicative of a relative shift from carbohydrates to lipids as substrates for oxidative metabolism. In the present study, the effects of food deprivation and cold exposure on the respiratory quotient were observed. In addition, the involvement of the three main branches of the peripheral nervous system (sympathetic, parasympathetic, and somatic) was investigated by means of synaptic blockade with propranolol, atropine, and quinine, respectively. Both propranolol and quinine blocked the cold-induced decrease in respiratory quotient and increase in heat production, whereas atropine had only minor and very brief effects. It is concluded that both the sympathetic and somatic branches are involved in the metabolic changes associated with cold-induced thermogenesis and that the increase in metabolic heat production involves a shift from carbohydrate to lipid utilization irrespective of which of the two branches is activated.

32 CFR 643.113 - Banks.

Code of Federal Regulations, 2010 CFR

2010-07-01

... Authority of Commanders § 643.113 Banks. (a) The establishment of banks, branch banks, and banking... banking facility is self-sustaining and notifies the Commander, U.S. Army Finance and Accounting Center. (c) Banking facilities which are not self-sustaining will be furnished space, utilities and custodial...

12 CFR 347.209 - Pledge of assets.

Code of Federal Regulations, 2011 CFR

2011-01-01

... to the risk-based assessment schedule contained in this paragraph, of the insured branch's average... most recent calendar quarter. (2) Risk-based assessment schedule. The risk-based asset pledge required by paragraph (b)(1) will be determined by utilizing the following risk-based assessment schedule...

12 CFR 347.209 - Pledge of assets.

Code of Federal Regulations, 2012 CFR

2012-01-01

... to the risk-based assessment schedule contained in this paragraph, of the insured branch's average... most recent calendar quarter. (2) Risk-based assessment schedule. The risk-based asset pledge required by paragraph (b)(1) will be determined by utilizing the following risk-based assessment schedule...

Forensic odontology.

PubMed

Shamim, Thorakkal

2012-04-01

Forensic odontology is a specialized field of dentistry which analyses dental evidence in the interest of justice. Forensic odontology embraces all dental specialities and it is almost impossible to segregate this branch from other dental specialities. This review aims to discuss the utility of various dental specialities with forensic odontology.

Field Trial of the Enhanced Data Authentication System (EDAS)

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

Thomas, Maikael A.; Baldwin, George T.; Hymel, Ross W.

2016-05-01

The goal of the field trial of EDAS was to demonstrate the utility of secure branching of operator instrumentation for nuclear safeguards, identify any unforeseen implementation and application issues with EDAS, and confirm whether the approach is compatible with operator concerns and constraints.

The role of amino acid profiles in diabetes risk assessment.

PubMed

Nagao, Kenji; Yamakado, Minoru

2016-07-01

The concentrations of plasma-free amino acids, such as branched-chain amino acids and aromatic amino acids, are associated with visceral obesity, insulin resistance, and the future development of diabetes and cardiovascular diseases. This review discusses recent progress in the early assessment of the risk of developing diabetes and the reversal of altered plasma-free amino acids through interventions. Additionally, recent developments that have increased the utility of amino acid profiling technology are also described. Plasma-free amino acid alterations in the early stage of lifestyle-related diseases are because of obesity and insulin resistance-related inflammation, and these alterations are reversed by appropriate (nutritional, drug, or surgical) interventions that improve insulin sensitivity. For clinical applications, procedures for measuring amino acids are being standardized and automated. Plasma-free amino acid profiles have potential as biomarkers for both assessing diabetes risk and monitoring the effects of strategies designed to lower that risk. In addition, the methodology for measuring amino acids has been refined, with the goal of routine clinical application.

Contribution to applications of EBW in instrument techniques

NASA Astrophysics Data System (ADS)

Hrabovsky, Miroslav

1999-07-01

The electron beam welding belongs to so-called physical methods of welding and it is utilized to welding of most materials, that can be arc welded. It is of use there, where one taxing welding technics and structure technologyableless heavily. As a rule, the quality of weld is better than at most first-rate welds being done by inert gas shielded arc welding (WIG, Argoarc). In plant instrumentation, where the limitation of any welded material distortion is of extraordinary importance, this way of welding is significant at welding of thermal-treated Cu-Be alloys, used in measurement technics, structural members from Ti alloys and stainless steels in branches of biomedicine and cryotechnics. This technology positives, especially high weld purity, narrow and deep root penetration, high welding rate, together with low energy consumption, lead to applications and verification of optimum operating mode at welding of frequent materials. In the contribution the results of this proofs of selected welded materials from viewpoint of weld quality, their physical-mechanic properties and microhardness, are presented.

Angiogenesis-Based Cancer Therapeutic | NCI Technology Transfer Center | TTC

Cancer.gov

The National Cancer Institute's Urologic Oncology Branch seeks interested parties to co-develop antagonists to VEGF-A and hepatocyte growth factor (HGF) that block signal transduction and associated cellular responses.

LSPV+7, a branch-point-tolerant reconstructor for strong turbulence adaptive optics.

PubMed

Steinbock, Michael J; Hyde, Milo W; Schmidt, Jason D

2014-06-20

Optical wave propagation through long paths of extended turbulence presents unique challenges to adaptive optics (AO) systems. As scintillation and branch points develop in the beacon phase, challenges arise in accurately unwrapping the received wavefront and optimizing the reconstructed phase with respect to branch cut placement on a continuous facesheet deformable mirror. Several applications are currently restricted by these capability limits: laser communication, laser weapons, remote sensing, and ground-based astronomy. This paper presents a set of temporally evolving AO simulations comparing traditional least-squares reconstruction techniques to a complex-exponential reconstructor and several other reconstructors derived from the postprocessing congruence operation. The reconstructors' behavior in closed-loop operation is compared and discussed, providing several insights into the fundamental strengths and limitations of each reconstructor type. This research utilizes a self-referencing interferometer (SRI) as the high-order wavefront sensor, driving a traditional linear control law in conjunction with a cooperative point source beacon. The SRI model includes practical optical considerations and frame-by-frame fiber coupling effects to allow for realistic noise modeling. The "LSPV+7" reconstructor is shown to offer the best performance in terms of Strehl ratio and correction stability-outperforming the traditional least-squares reconstructed system by an average of 120% in the studied scenarios. Utilizing a continuous facesheet deformable mirror, these reconstructors offer significant AO performance improvements in strong turbulence applications without the need for segmented deformable mirrors.

Flight Dynamics Analysis Branch End of Fiscal Year 1999 Report

NASA Technical Reports Server (NTRS)

Stengle, Thomas; Flores-Amaya, Felipe

1999-01-01

This document summarizes the major activities and accomplishments carried out by the Goddard Space Flight Center (GSFC)'s Flight Dynamics Analysis Branch (FDAB), Code 572, in support of flight projects and technology development initiatives in Fiscal Year (FY) 1999. The document is intended to serve as both an introduction to the type of support carried out by the FDAB (Flight Dynamics Analysis Branch), as well as a concise reference summarizing key analysis results and mission experience derived from the various mission support roles assumed over the past year. The major accomplishments in the FDAB in FY99 were: 1) Provided flight dynamics support to the Lunar Prospector and TRIANA missions among a variety of spacecraft missions; 2) Sponsored the Flight Mechanics Symposium; 3) Supported the Consultative Committee for Space Data Systems (CCSDS) workshops; 4) Performed numerous analyses and studies for future missions; 5) Started the Flight Dynamics Analysis Branch Lab for in-house mission analysis and support; and 6) Complied with all requirements in support of GSFC IS09000 certification.

Conformational Heterogeneity in a Fully Complementary DNA Three-Way Junction with a GC-Rich Branchpoint.

PubMed

Toulmin, Anita; Baltierra-Jasso, Laura E; Morten, Michael J; Sabir, Tara; McGlynn, Peter; Schröder, Gunnar F; Smith, Brian O; Magennis, Steven W

2017-09-19

DNA three-way junctions (3WJs) are branched structures that serve as important biological intermediates and as components in DNA nanostructures. We recently derived the global structure of a fully complementary 3WJ and found that it contained unpaired bases at the branchpoint, which is consistent with previous observations of branch flexibility and branchpoint reactivity. By combining high-resolution single-molecule Förster resonance energy transfer, molecular modeling, time-resolved ensemble fluorescence spectroscopy, and the first 19 F nuclear magnetic resonance observations of fully complementary 3WJs, we now show that the 3WJ structure can adopt multiple distinct conformations depending upon the sequence at the branchpoint. A 3WJ with a GC-rich branchpoint adopts an open conformation with unpaired bases at the branch and at least one additional conformation with an increased number of base interactions at the branchpoint. This structural diversity has implications for branch interactions and processing in vivo and for technological applications.

Overview of Glenn Mechanical Components Branch Research

NASA Astrophysics Data System (ADS)

Zakrajsek, James

2002-09-01

Mr. James Zakrajsek, chief of the Mechanical Components Branch, gave an overview of research conducted by the branch. Branch members perform basic research on mechanical components and systems, including gears and bearings, turbine seals, structural and thermal barrier seals, and space mechanisms. The research is focused on propulsion systems for present and advanced aerospace vehicles. For rotorcraft and conventional aircraft, we conduct research to develop technology needed to enable the design of low noise, ultra safe geared drive systems. We develop and validate analytical models for gear crack propagation, gear dynamics and noise, gear diagnostics, bearing dynamics, and thermal analyses of gear systems using experimental data from various component test rigs. In seal research we develop and test advanced turbine seal concepts to increase efficiency and durability of turbine engines. We perform experimental and analytical research to develop advanced thermal barrier seals and structural seals for current and next generation space vehicles. Our space mechanisms research involves fundamental investigation of lubricants, materials, components and mechanisms for deep space and planetary environments.

Genetics Home Reference: short/branched chain acyl-CoA dehydrogenase deficiency

MedlinePlus

... PDF) Orphanet: 2-methylbutyryl-CoA dehydrogenase deficiency Screening, Technology, and Research in Genetics Patient Support and Advocacy Resources (2 links) Children Living with Inherited Metabolic Diseases (CLIMB) Organic Acidemia ...

ARC-2002-ACD02-0055-04

NASA Image and Video Library

2002-03-20

Sun-Earth Day WEBCAST - NASA TV; Host Paul Mortfield, Astronomer Stanford Solar Center and visiting students from San Francisco Bay Area Schools Documentation Technology Branch Video communications van (code-JIT) David Maurantonio, Paul Langston

76 FR 41769 - Information Collection; Submission for OMB Review, Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-15

... techniques or other forms of information technology, e.g., permitting electronic submissions of responses.../maintenance): None. Dated: July 11, 2011. Maggie Taylor-Coates, Chief, Trust Operations Branch. [FR Doc. 2011...

Reclaiming Oversight of Executive Branch Spending Act

THOMAS, 112th Congress

Rep. Barrow, John [D-GA-12

2011-10-06

House - 11/02/2011 Referred to the Subcommittee on Technology, Information Policy, Intergovernmental Relations and Procurement Reform . (All Actions) Tracker: This bill has the status IntroducedHere are the steps for Status of Legislation:

Flight Dynamics Analysis Branch End of Fiscal Year 2004 Report

NASA Technical Reports Server (NTRS)

DeLion, Anne (Editor); Stengle, Thomas

2005-01-01

This report summarizes the major activities and accomplishments carried out by the Flight Dynamics Analysis Branch (FDAB), Code 595, in support of flight projects and technology development initiatives in Fiscal Year (FY) 2004. The report is intended to serve as a summary of the type of support carried out by the FDAB, as well as a concise reference of key accomplishments and mission experience derived from the various mission support roles. The primary focus of the FDAB is to provide expertise in the disciplines of flight dynamics including spacecraft navigation (autonomous and ground based); spacecraft trajectory design and maneuver planning; attitude analysis; attitude determination and sensor calibration; and attitude control subsystem (ACS) analysis and design. The FDAB currently provides support for missions and technology development projects involving NASA, other government agencies, academia, and private industry.

NASA. Lewis Research Center Advanced Modulation and Coding Project: Introduction and overview

NASA Technical Reports Server (NTRS)

Budinger, James M.

1992-01-01

The Advanced Modulation and Coding Project at LeRC is sponsored by the Office of Space Science and Applications, Communications Division, Code EC, at NASA Headquarters and conducted by the Digital Systems Technology Branch of the Space Electronics Division. Advanced Modulation and Coding is one of three focused technology development projects within the branch's overall Processing and Switching Program. The program consists of industry contracts for developing proof-of-concept (POC) and demonstration model hardware, university grants for analyzing advanced techniques, and in-house integration and testing of performance verification and systems evaluation. The Advanced Modulation and Coding Project is broken into five elements: (1) bandwidth- and power-efficient modems; (2) high-speed codecs; (3) digital modems; (4) multichannel demodulators; and (5) very high-data-rate modems. At least one contract and one grant were awarded for each element.

Flight Dynamics Analysis Branch End of Fiscal Year 2005 Report

NASA Technical Reports Server (NTRS)

2006-01-01

This report summarizes the major activities and accomplishments carried out by the Flight Dynamics Analysis Branch (FDAB), Code 595, in support of flight projects and technology development initiatives in Fiscal Year (FY) 2005. The report is intended to serve as a summary of the type of support carried out by the FDAB, as well as a concise reference of key accomplishments and mission experience derived from the various mission support roles. The primary focus of the FDAB is to provide expertise in the disciplines of flight dynamics including spacecraft navigation (autonomous and ground based), spacecraft trajectory design and maneuver planning, attitude analysis, attitude determination and sensor calibration, and attitude control subsystem (ACS) analysis and design. The FDAB currently provides support for missions and technology development projects involving NASA, other government agencies, academia, and private industry.

Ten trends transforming cancer care and their effects on space planning for academic medical centers.

PubMed

Bloom, Mara; Markovitz, Sarah; Silverman, Susan; Yost, Carl

2015-01-01

This article aims to define the major trends currently affecting space needs for academic medical center (AMC) cancer centers. It will distinguish between the trends that promote the concentration of services with those that promote decentralization as well as identify opportunities for achieving greater effectiveness in cancer care space planning. Changes in cancer care-higher survival rates, increased clinical trials, new technology, and changing practice models-increasingly fill hospitals' and clinicians' schedules and strain clinical space resources. Conflicts among these trends are concentrating some services and dispersing others. As a result, AMCs must expand and renovate intelligently to continue providing state-of-the-art, compassionate care. Although the typical AMC cancer center can expect to utilize more space than it would have 10 years ago, a deeper understanding of the cancer center enterprise can lead to opportunities for more effectively using available facility resources. Each AMC must determine for itself the appropriate balance of patient volume, clinical activity, and services between its main hospital campus and satellite branches. As well, space allocation should be flexible, as care trends, medical technology, and the provider's own priorities shift over time. The goal isn't necessarily more space-it's better space. © The Author(s) 2015.

Presentation to Ohio State University Dept. of Electrical Engineering ElectroScience Laboratory

NASA Technical Reports Server (NTRS)

Fujikawa, Gene

2002-01-01

Presentation made during visit to The Ohio State University, ElectroScience Laboratory, on November 14, 2002. An overview of NASA and selected technology products from the Digital Communications Technology Branch (5650) for fiscal year 2003 are highlighted. The purpose of the meeting was to exchange technical information on current aeronautics and space communications research and technology being conducted at NASA Glenn Research Center and to promote faculty/student collaborations of mutual interest.

Oligo-branched peptides for tumor targeting: from magic bullets to magic forks.

PubMed

Falciani, Chiara; Pini, Alessandro; Bracci, Luisa

2009-02-01

Selective targeting of tumor cells is the final goal of research and drug discovery for cancer diagnosis, imaging and therapy. After the invention of hybridoma technology, the concept of magic bullet was introduced into the field of oncology, referring to selective killing of tumor cells, by specific antibodies. More recently, small molecules and peptides have also been proposed as selective targeting agents. We analyze the state of the art of tumor-selective agents that are presently available and tested in clinical settings. A novel approach based on 'armed' oligo-branched peptides as tumor targeting agents, is discussed and compared with existing tumor-selective therapies mediated by antibodies, small molecules or monomeric peptides. Oligo-branched peptides could be novel drugs that combine the advantages of antibodies and small molecules.

INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY: Branch Processes of Vortex Filaments and Hopf Invariant Constraint on Scroll Wave

NASA Astrophysics Data System (ADS)

Zhu, Tao; Ren, Ji-Rong; Mo, Shu-Fan

2009-12-01

In this paper, by making use of Duan's topological current theory, the evolution of the vortex filaments in excitable media is discussed in detail. The vortex filaments are found generating or annihilating at the limit points and encountering, splitting, or merging at the bifurcation points of a complex function Z(vec x, t). It is also shown that the Hopf invariant of knotted scroll wave filaments is preserved in the branch processes (splitting, merging, or encountering) during the evolution of these knotted scroll wave filaments. Furthermore, it also revealed that the “exclusion principle" in some chemical media is just the special case of the Hopf invariant constraint, and during the branch processes the “exclusion principle" is also protected by topology.

Overview of Human-Centric Space Situational Awareness Science and Technology

DTIC Science & Technology

2012-09-01

AGI), the developers of Satellite Tool Kit ( STK ), has provided demonstrations of innovative SSA visualization concepts that take advantage of the...needs inherent with SSA. RH has conducted CTAs and developed work-centered human-computer interfaces, visualizations , and collaboration technologies...all end users. RH’s Battlespace Visualization Branch researches methods to exploit the visual channel primarily to improve decision making and

16th Space Photovoltaic Research and Technology Conference. Revised

NASA Technical Reports Server (NTRS)

Bailey, Sheila (Editor)

2005-01-01

The purpose of the SPRAT conference is to bring members of the space solar cell community together in a relatively informal conference setting to discuss the recent developments in solar cell technology and to discuss the future directions of the field. The conference is sponsored by the Photovoltaic and Space Environmental Effects Branch at the NASA Glenn Research Center.

Technology assessment and the Congress

NASA Technical Reports Server (NTRS)

Carpenter, R. A.

1972-01-01

The legislative branch is considered as the major focus for technology assessment, and the functions of the Congressional Research Service in supplying Congressmen with scientific and technological development is outlined, and the need for Congress to control, assess, and integrate the various and conflicting elements for the benefit of both technology and society is stressed. The organization of the Science Policy Research Division is mentioned, and its duties in gathering facts for the increased understanding by the members of Congress are indicated. Technology assessment aspects associated with congressional committees and hearings, adequacy of advice, trends in engineering education, and the public interest are also discussed.

Towards organ printing: engineering an intra-organ branched vascular tree.

PubMed

Visconti, Richard P; Kasyanov, Vladimir; Gentile, Carmine; Zhang, Jing; Markwald, Roger R; Mironov, Vladimir

2010-03-01

Effective vascularization of thick three-dimensional engineered tissue constructs is a problem in tissue engineering. As in native organs, a tissue-engineered intra-organ vascular tree must be comprised of a network of hierarchically branched vascular segments. Despite this requirement, current tissue-engineering efforts are still focused predominantly on engineering either large-diameter macrovessels or microvascular networks. We present the emerging concept of organ printing or robotic additive biofabrication of an intra-organ branched vascular tree, based on the ability of vascular tissue spheroids to undergo self-assembly. The feasibility and challenges of this robotic biofabrication approach to intra-organ vascularization for tissue engineering based on organ-printing technology using self-assembling vascular tissue spheroids including clinically relevantly vascular cell sources are analyzed. It is not possible to engineer 3D thick tissue or organ constructs without effective vascularization. An effective intra-organ vascular system cannot be built by the simple connection of large-diameter vessels and microvessels. Successful engineering of functional human organs suitable for surgical implantation will require concomitant engineering of a 'built in' intra-organ branched vascular system. Organ printing enables biofabrication of human organ constructs with a 'built in' intra-organ branched vascular tree.

Spinoff, 1976

NASA Technical Reports Server (NTRS)

Ruzic, N. P.

1976-01-01

This report is divided into three sections: 1. The Research Payoff, 2. Technology Twice Used, and 3. Technology Utilization at Work. The first describes a wide variety of current space spinoffs of use in business or personal life, as well as the space explorations from which they have been derived. The second provides information on specific examples of technology transfer that are typical of the spinoffs resulting from NASA's Technology Utilization Program. The third briefly describes the different activities of the Technology Utilization Office, all of which have as their purpose the profitable utilization of aerospace technology.

Oxidation and crystal field effects in uranium

NASA Astrophysics Data System (ADS)

Tobin, J. G.; Yu, S.-W.; Booth, C. H.; Tyliszczak, T.; Shuh, D. K.; van der Laan, G.; Sokaras, D.; Nordlund, D.; Weng, T.-C.; Bagus, P. S.

2015-07-01

An extensive investigation of oxidation in uranium has been pursued. This includes the utilization of soft x-ray absorption spectroscopy, hard x-ray absorption near-edge structure, resonant (hard) x-ray emission spectroscopy, cluster calculations, and a branching ratio analysis founded on atomic theory. The samples utilized were uranium dioxide (U O2) , uranium trioxide (U O3) , and uranium tetrafluoride (U F4) . A discussion of the role of nonspherical perturbations, i.e., crystal or ligand field effects, will be presented.

The central branch of the North Anatolian Fault In The Southern Marmara Sea: Evidence for a distributed, Holocene-active fault system

NASA Astrophysics Data System (ADS)

Barın, Burcu; Okay, Seda; Çifçi, Günay; Dondurur, Derman; Cormier, Marie Helene; Sorlien, Christopher; Meriç İlkimen, Elif

2015-04-01

The North Anatolian Fault (NAF) is a major right-lateral transform fault in northern Turkey that branches westward into several strands in the vicinity of the Sea of Marmara. The main northern branch bisects the Marmara Sea from east to west, and seismic reflection profiles acquired over the past 15 years have revealed its complex geometry. Further, the several basins that developed along that branch record stratigraphic sequences that provide the needed framework to interpret the relative timing of tectonic deformation in the Marmara Sea. In contrast, the central branch, which snakes across the shallow southern shelf of the Marmara Sea, has been much less investigated. Here, we analyze a comprehensive dataset of high-resolution multi-channel, sparker, and CHIRP seismic profiles, which were collected with the facilities of Seismic Laboratory (SeisLab) in the Institute of Marine Sciences and Technology and R/V K. Piri Reis belonging to Dokuz Eylül University, along the central branch in 2008 (TAMAM expedition) and in 2013-2014 (SoMAR expedition), within the framework of a bilateral TÜBİTAK - NSF project. In combination with other existing seismic profiles, these new data reveal that the Central Branch consists of multiple faults strands that are distributed across the broad southern shelf. They also reveal that many of these strands are Holocene-active, although they slip at slower rates than the northern branch and are associated with slower basin subsidence or local uplift. Lastly, seismic data image a system of half-grabens across the southern shelf that are associated with the strands of the central branch. Strata within these half-grabens are progressively tilted and consistently dip to the south. Further analysis will be conducted to determine whether the formation of these grabens are controlled by oblique slip on the strands of the central branch, or by slip on detachment faults beneath the southern shelf.

ADAPT

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

Reynolds, John; Jankovsky, Zachary; Metzroth, Kyle G

2018-04-04

The purpose of the ADAPT code is to generate Dynamic Event Trees (DET) using a user specified set of simulators. ADAPT can utilize any simulation tool which meets a minimal set of requirements. ADAPT is based on the concept of DET which uses explicit modeling of the deterministic dynamic processes that take place during a nuclear reactor plant system (or other complex system) evolution along with stochastic modeling. When DET are used to model various aspects of Probabilistic Risk Assessment (PRA), all accident progression scenarios starting from an initiating event are considered simultaneously. The DET branching occurs at user specifiedmore » times and/or when an action is required by the system and/or the operator. These outcomes then decide how the dynamic system variables will evolve in time for each DET branch. Since two different outcomes at a DET branching may lead to completely different paths for system evolution, the next branching for these paths may occur not only at separate times, but can be based on different branching criteria. The computational infrastructure allows for flexibility in ADAPT to link with different system simulation codes, parallel processing of the scenarios under consideration, on-line scenario management (initiation as well as termination), analysis of results, and user friendly graphical capabilities. The ADAPT system is designed for a distributed computing environment; the scheduler can track multiple concurrent branches simultaneously. The scheduler is modularized so that the DET branching strategy can be modified (e.g. biasing towards the worst-case scenario/event). Independent database systems store data from the simulation tasks and the DET structure so that the event tree can be constructed and analyzed later. ADAPT is provided with a user-friendly client which can easily sort through and display the results of an experiment, precluding the need for the user to manually inspect individual simulator runs.« less

The Specific Features of design and process engineering in branch of industrial enterprise

NASA Astrophysics Data System (ADS)

Sosedko, V. V.; Yanishevskaya, A. G.

2017-06-01

Production output of industrial enterprise is organized in debugged working mechanisms at each stage of product’s life cycle from initial design documentation to product and finishing it with utilization. The topic of article is mathematical model of the system design and process engineering in branch of the industrial enterprise, statistical processing of estimated implementation results of developed mathematical model in branch, and demonstration of advantages at application at this enterprise. During the creation of model a data flow about driving of information, orders, details and modules in branch of enterprise groups of divisions were classified. Proceeding from the analysis of divisions activity, a data flow, details and documents the state graph of design and process engineering was constructed, transitions were described and coefficients are appropriated. To each condition of system of the constructed state graph the corresponding limiting state probabilities were defined, and also Kolmogorov’s equations are worked out. When integration of sets of equations of Kolmogorov the state probability of system activity the specified divisions and production as function of time in each instant is defined. On the basis of developed mathematical model of uniform system of designing and process engineering and manufacture, and a state graph by authors statistical processing the application of mathematical model results was carried out, and also advantage at application at this enterprise is shown. Researches on studying of loading services probability of branch and third-party contractors (the orders received from branch within a month) were conducted. The developed mathematical model of system design and process engineering and manufacture can be applied to definition of activity state probability of divisions and manufacture as function of time in each instant that will allow to keep account of loading of performance of work in branches of the enterprise.

Root Cortical Aerenchyma Enhances the Growth of Maize on Soils with Suboptimal Availability of Nitrogen, Phosphorus, and Potassium1[W][OA

PubMed Central

Postma, Johannes Auke; Lynch, Jonathan Paul

2011-01-01

Root cortical aerenchyma (RCA) is induced by hypoxia, drought, and several nutrient deficiencies. Previous research showed that RCA formation reduces the respiration and nutrient content of root tissue. We used SimRoot, a functional-structural model, to provide quantitative support for the hypothesis that RCA formation is a useful adaptation to suboptimal availability of phosphorus, nitrogen, and potassium by reducing the metabolic costs of soil exploration in maize (Zea mays). RCA increased the growth of simulated 40-d-old maize plants up to 55%, 54%, or 72% on low nitrogen, phosphorus, or potassium soil, respectively, and reduced critical fertility levels by 13%, 12%, or 7%, respectively. The greater utility of RCA on low-potassium soils is associated with the fact that root growth in potassium-deficient plants was more carbon limited than in phosphorus- and nitrogen-deficient plants. In contrast to potassium-deficient plants, phosphorus- and nitrogen-deficient plants allocate more carbon to the root system as the deficiency develops. The utility of RCA also depended on other root phenes and environmental factors. On low-phosphorus soils (7.5 μm), the utility of RCA was 2.9 times greater in plants with increased lateral branching density than in plants with normal branching. On low-nitrate soils, the utility of RCA formation was 56% greater in coarser soils with high nitrate leaching. Large genetic variation in RCA formation and the utility of RCA for a range of stresses position RCA as an interesting crop-breeding target for enhanced soil resource acquisition. PMID:21628631

The new world of discovery, invention, and innovation: convergence of knowledge, technology, and society

NASA Astrophysics Data System (ADS)

Roco, Mihail C.; Bainbridge, William S.

2013-09-01

Convergence of knowledge and technology for the benefit of society (CKTS) is the core opportunity for progress in the twenty-first century. CKTS is defined as the escalating and transformative interactions among seemingly different disciplines, technologies, communities, and domains of human activity to achieve mutual compatibility, synergism, and integration, and through this process to create added value and branch out to meet shared goals. Convergence has been progressing by stages over the past several decades, beginning with nanotechnology for the material world, followed by convergence of nanotechnology, biotechnology, information, and cognitive science (NBIC) for emerging technologies. CKTS is the third level of convergence. It suggests a general process to advance creativity, innovation, and societal progress based on five general purpose principles: (1) the interdependence of all components of nature and society, (2) decision analysis for research, development, and applications based on dynamic system-logic deduction, (3) enhancement of creativity and innovation through evolutionary processes of convergence that combines existing principles and divergence that generates new ones, (4) the utility of higher-level cross-domain languages to generate new solutions and support transfer of new knowledge, and (5) the value of vision-inspired basic research embodied in grand challenges. CKTS is a general purpose approach in knowledge society. It allows society to answer questions and resolve problems that isolated capabilities cannot, as well as to create new competencies, knowledge, and technologies on this basis. Possible solutions are outlined for key societal challenges in the next decade, including support for foundational emerging technologies NBIC to penetrate essential platforms of human activity and create new industries and jobs, improve lifelong wellness and human potential, achieve personalized and integrated healthcare and education, and secure a sustainable quality of life for all. This paper provides a 10-year "NBIC2" vision within a longer-term framework for converging technology and human progress outlined in a previous study of unifying principles across "NBIC" fields that began with nanotechnology, biotechnology, information technology, and technologies based on and enabling cognitive science (Roco and Bainbridge, Converging technologies for improving human performance: nanotechnology, biotechnology, information technology and cognitive sciences, 2003).

Demonstration of Resolving Urban Problems by Applying Smart Technology.

NASA Astrophysics Data System (ADS)

Kim, Y.

2016-12-01

Recently, movements to seek various alternatives are becoming more active around the world to resolve urban problems related to energy, water, a greenhouse gas, and disaster by utilizing smart technology system. The purpose of this study is to evaluate service verification aimed at demonstration region applied with actual smart technology in order to raise the efficiency of the service and explore solutions for urban problems. This process must be required for resolving urban problems in the future and establishing `integration platform' for sustainable development. The demonstration region selected in this study to evaluate service verification is `Busan' in Korea. Busan adopted 16 services in 4 sections last year and begun demonstration to improve quality of life and resolve urban environment problems. In addition, Busan participated officially in `Global City Teams Challenge (GCTC)' held by National Institute of Standards and Technology (NIST) in USA last year and can be regarded as representative demonstration region in Korea. The result of survey showed that there were practical difficulties as explained below in the demonstration for resolving urban problems by applying smart technology. First, the participation for demonstration was low because citizens were either not aware or did not realize the demonstration. Second, after demonstrating various services at low cost, it resulted in less effect of service demonstration. Third, as functions get fused, it was found that management department, application criteria of technology and its process were ambiguous. In order to increase the efficiency of the demonstration for the rest of period through the result of this study, it is required to draw demand that citizens requires in order to raise public participation. In addition, it needs to focus more on services which are wanted to demonstrate rather than various service demonstrations. Lastly, it is necessary to build integration platform through cooperation between departments and branches. The data collected from various source while conducting service demonstration will provide meaningful suggestion in order to explore solution for resolving urban problems by applying smart technology in the future.

Methodolgy For Evaluation Of Technology Impacts In Space Electric Power Systems

NASA Technical Reports Server (NTRS)

Holda, Julie

2004-01-01

The Analysis and Management branch of the Power and Propulsion Office at NASA Glenn Research Center is responsible for performing complex analyses of the space power and In-Space propulsion products developed by GRC. This work quantifies the benefits of the advanced technologies to support on-going advocacy efforts. The Power and Propulsion Office is committed to understanding how the advancement in space technologies could benefit future NASA missions. They support many diverse projects and missions throughout NASA as well as industry and academia. The area of work that we are concentrating on is space technology investment strategies. Our goal is to develop a Monte-Carlo based tool to investigate technology impacts in space electric power systems. The framework is being developed at this stage, which will be used to set up a computer simulation of a space electric power system (EPS). The outcome is expected to be a probabilistic assessment of critical technologies and potential development issues. We are developing methods for integrating existing spreadsheet-based tools into the simulation tool. Also, work is being done on defining interface protocols to enable rapid integration of future tools. Monte Carlo-based simulation programs for statistical modeling of the EPS Model. I decided to learn and evaluate Palisade's @Risk and Risk Optimizer software, and utilize it's capabilities for the Electric Power System (EPS) model. I also looked at similar software packages (JMP, SPSS, Crystal Ball, VenSim, Analytica) available from other suppliers and evaluated them. The second task was to develop the framework for the tool, in which we had to define technology characteristics using weighing factors and probability distributions. Also we had to define the simulation space and add hard and soft constraints to the model. The third task is to incorporate (preliminary) cost factors into the model. A final task is developing a cross-platform solution of this framework.

Research experiments at Hangar L

NASA Technical Reports Server (NTRS)

2000-01-01

Researchers work with wheat samples that are part of ground testing for the first International Space Station plant experiment, scheduled to fly in October 2001. From left are research scientist Oscar Monje and research technicians Lisa Ruffa and Ignacio Eraso. The payload process testing they are performing is one of many studies at the Biological Sciences Branch in the Spaceport Engineering and Technology Directorate at Kennedy Space Center. The branch's operations and research areas include life sciences Space Shuttle payloads, bioregenerative life-support for long-duration spaceflight and environmental/ecological stewardship.

Trust Species and Habitat Branch: using the innovative approaches of today to conserve biodiversity for tomorrow

USGS Publications Warehouse

Stevens, Patricia; Walters, Katie D.

2015-01-01

The Trust Species and Habitats Branch of the Fort Collins Science Center includes a diverse group of scientists encompassing both traditional and specialized expertise in wildlife biology, ecosystem ecology, quantitative ecology, disease ecology, molecular genetics, and stable isotope geochemistry. Using our expertise and collaborating with others around the world, our goal is to provide the information, tools, and technologies that our partners need to support conservation, management, and restoration of terrestrial vertebrate populations, habitats, and ecosystem function in a changing world.

Mission and spacecraft support functions of the Materials Engineering Branch: A space oriented technology resource

NASA Technical Reports Server (NTRS)

Fisher, A.; Staugaitis, C. L.

1974-01-01

The capabilities of the Materials Engineering Branch (MEB) of the Goddard Space Flight Center, Greenbelt, Maryland, are surveyed. The specific functions of spacecraft materials review, materials processing and information dissemination, and laboratory support, are outlined in the Activity Report. Further detail is provided by case histories of laboratory satellite support and equipment. Project support statistics are shown, and complete listings of MEB publications, patents, and tech briefs are included. MEB staff, and their respective discipline areas and spacecraft liaison associations, are listed.

ARC-1993-AC93-0608-41

NASA Image and Video Library

1993-12-12

Life from other Worlds' with McNair Middle School TROV robot explores under Antarctic ice - image of Eric James, Ron Schutz, and Wade Sisler of the Photographic Technology Branch co-ordinating remote shots from Antarctic to Ames

Evaluating the Level and Structure of Education

ERIC Educational Resources Information Center

Sonin, M.

1978-01-01

Outlines objectives of public education in the Soviet Union and suggests that educational policy should concentrate on training specialists for those new branches of science and technology where the need for workers is greatest. (Author/DB)

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

None, None

The GATEWAY program evaluated a trial installation of tunable-white LED lighting systems in three classrooms in the Carrollton-Farmers Branch Independent School District in Carrollton, TX. The report provides valuable insights into the use of this technology in a real-world setting.

76 FR 31617 - National Heart, Lung, and Blood Institute; Notice of Closed Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2011-06-01

... Emphasis Panel, Utilization of a Human Lung Tissue Resource for Vascular Research. Date: June 23, 2011... Research; 93.838, Lung Diseases Research; 93.839, Blood Diseases and Resources Research, National... Sunnarborg, PhD, Scientific Review Officer, Review Branch/DERA, National Heart, Lung, and Blood Institute...

75 FR 69913 - Submission for OMB Review; Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2010-11-16

... methodology and assumptions used; (c) ways to enhance the quality, utility and clarity of the information to be collected; (d) ways to minimize the burden of the collection of information on those who are to... number. Agricultural Marketing Service Title: Generic Fruit Crops, Marketing Order Administration Branch...

75 FR 29547 - Federal Acquisition Regulation; Information Collection; Contract Financing

Federal Register 2010, 2011, 2012, 2013, 2014

2010-05-26

... particularly invited on: Whether this collection of information is necessary for the proper performance of... to enhance the quality, utility, and clarity of the information to be collected; and ways in which we... INFORMATION CONTACT: Mr. Edward Chambers, Procurement Analyst, Contract Policy Branch, GSA, (202) 501-4770 or...

Semiochemical-mediated flight responses of sap beetle vectors of oak wilt, Ceratocystis fagacearum

Treesearch

John F. Kyhl; Robert J. Bartelt; Allard Cosse; Jennifer Juzwik; Steven J. Seybold

2002-01-01

The sap beetle, Colopterus truncatus (Coleoptera: Nitidulidae), is one of the primary vectors of the oak wilt pathogen, Ceratocystis fagacearum, in the north-central United States. Field behavioral assays utilizing various release rates and blends of three methyl-branched hydrocarbon aggregation pheromone components showed that...

30 CFR 250.1613 - Diverter systems.

Code of Federal Regulations, 2010 CFR

2010-07-01

...) downstream of the spool outlet flange, and the radius of curvature of turns shall be as large as practicable... following shall apply: (1) If the diverter system utilizes only one spool outlet, branch lines shall be installed to provide downwind diversion capability, and (2) No spool outlet or diverter line internal...

30 CFR 250.1613 - Diverter systems.

Code of Federal Regulations, 2014 CFR

2014-07-01

... number of turns in the vent line(s) downstream of the spool outlet flange, and the radius of curvature of... utilizes only one spool outlet, branch lines shall be installed to provide downwind diversion capability, and (2) No spool outlet or diverter line internal diameter shall be less than 10 inches, except that...

30 CFR 250.1613 - Diverter systems.

Code of Federal Regulations, 2011 CFR

2011-07-01

... a minimum number of turns in the vent line(s) downstream of the spool outlet flange, and the radius... system utilizes only one spool outlet, branch lines shall be installed to provide downwind diversion capability, and (2) No spool outlet or diverter line internal diameter shall be less than 10 inches, except...

30 CFR 250.1613 - Diverter systems.

Code of Federal Regulations, 2013 CFR

2013-07-01

... number of turns in the vent line(s) downstream of the spool outlet flange, and the radius of curvature of... utilizes only one spool outlet, branch lines shall be installed to provide downwind diversion capability, and (2) No spool outlet or diverter line internal diameter shall be less than 10 inches, except that...

30 CFR 250.1613 - Diverter systems.

Code of Federal Regulations, 2012 CFR

2012-07-01

... number of turns in the vent line(s) downstream of the spool outlet flange, and the radius of curvature of... utilizes only one spool outlet, branch lines shall be installed to provide downwind diversion capability, and (2) No spool outlet or diverter line internal diameter shall be less than 10 inches, except that...

Practical cryptographic strategies in the post-quantum era

NASA Astrophysics Data System (ADS)

Kabanov, I. S.; Yunusov, R. R.; Kurochkin, Y. V.; Fedorov, A. K.

2018-02-01

Quantum key distribution technologies promise information-theoretic security and are currently being deployed in com-mercial applications. We review new frontiers in information security technologies in communications and distributed storage applications with the use of classical, quantum, hybrid classical-quantum, and post-quantum cryptography. We analyze the cur-rent state-of-the-art, critical characteristics, development trends, and limitations of these techniques for application in enterprise information protection systems. An approach concerning the selection of practical encryption technologies for enterprises with branched communication networks is discussed.

Pumping and Depressurizing of Insulation Materials

NASA Technical Reports Server (NTRS)

Porter, Amber

2010-01-01

The Fluids Testing and Technology Branch is a group that researches and tests efficient ways to use various Cryogenic Fluids, such as Liquid Nitrogen or Liquid Helium, in ground and space systems. Their main goal is to develop new technologies involving Cryogenic temperatures as well as making sure the existing technologies are understood. During my time here a lot of insulation testing has been done which is where insulation systems are tested for cryogenic systems that are in space for long durations.

NASA Stennis Space Center Test Technology Branch Activities

NASA Technical Reports Server (NTRS)

Solano, Wanda M.

2000-01-01

This paper provides a short history of NASA Stennis Space Center's Test Technology Laboratory and briefly describes the variety of engine test technology activities and developmental project initiatives. Theoretical rocket exhaust plume modeling, acoustic monitoring and analysis, hand held fire imaging, heat flux radiometry, thermal imaging and exhaust plume spectroscopy are all examples of current and past test activities that are briefly described. In addition, recent efforts and visions focused on accomodating second, third, and fourth generation flight vehicle engine test requirements are discussed.

Two-dimensional hyper-branched gold nanoparticles synthesized on a two-dimensional oil/water interface.

PubMed

Shin, Yonghee; Lee, Chiwon; Yang, Myung-Seok; Jeong, Sunil; Kim, Dongchul; Kang, Taewook

2014-08-26

Two-dimensional (2D) gold nanoparticles can possess novel physical and chemical properties, which will greatly expand the utility of gold nanoparticles in a wide variety of applications ranging from catalysis to biomedicine. However, colloidal synthesis of such particles generally requires sophisticated synthetic techniques to carefully guide anisotropic growth. Here we report that 2D hyper-branched gold nanoparticles in the lateral size range of about 50 ~ 120 nm can be synthesized selectively on a 2D immiscible oil/water interface in a few minutes at room temperature without structure-directing agents. An oleic acid/water interface can provide diffusion-controlled growth conditions, leading to the structural evolution of a smaller gold nucleus to 2D nanodendrimer and nanourchin at the interface. Simulations based on the phase field crystal model match well with experimental observations on the 2D branching of the nucleus, which occurs at the early stage of growth. Branching results in higher surface area and stronger near-field enhancement of 2D gold nanoparticles. This interfacial synthesis can be scaled up by creating an emulsion and the recovery of oleic acid is also achievable by centrifugation.

JPRS Report Science & Technology Europe & Latin America.

DTIC Science & Technology

1997-09-11

mixture of barium, yttrium, copper, and oxygen) was that of the Institute for Research in Non -Traditional Materials of the CNR [National Research...the necessary equipment for this kind of experimental work. The problem now is to coordinate all these branches of research which were begun...Nuclear Physics, the CNR [National Research Council] Institute for Non -Traditional Materials Technology, the physics departments of Naples and Salerno

East Europe Report

DTIC Science & Technology

1986-01-24

branches of AlK and its infrastructure. In the CEMA countries, the degree of agricultural intensification has grown as did labor productivity, and the...1.47 percent in 1980 (F. Levcik, J. Skolka: East-West Technology Transfer. Study of Czechoslovakia, Paris [ OECD ] 1984, p 20). Basic Features of...an OECD study in 1984: between 1979 and 1981, export of technological equipment and other investment goods ("engineering products"), price-adjusted

Objects of Industrial Property as an Instrument for Introducing Technological Innovations in Machine Building

NASA Astrophysics Data System (ADS)

Nikitenko, S. M.; Mesyats, M. A.

2017-10-01

The article is devoted to the investigation of the possibility of applying new credit instruments for the implementation of technological innovations in machine building and other branches of the fuel and energy complex. The possibilities of using the new tool as an element of industrial policy in the program of import substitution of high-tech products have been considered.

Transonic Fan/Compressor Rotor Design Study. Volume 4

DTIC Science & Technology

1982-02-01

amd Identify by block number) Fan Aircraft Engines Compressor Blade Thickness Rotor Camber Distribution Aerodesign Throat Margin Aerodynamics 20...COMPRESSOR ROTOR DESIGN STUDY Volume IV D.E. Parker and M.R. Simonson General Electric Company Aircraft Engine Business Group Advanced Technology...Compressor Research Group Chief, Technology Branch FOR THE COMMANDER H. IVAN BUS Director, Turbine Engine Division If your address has changed, if you

Transonic Fan/Compressor Rotor Design Study. Volume 2

DTIC Science & Technology

1982-02-01

Identity by block number) Fan Aircraft Engines Compressor Blade Thickness Rotor Camber Distribution Aerodesign Throat Margin Aerodynamics 20. 1ABSRACT...COMPRESSOR ROTOR DESIGN STUDY Volume II D.E. Parker and M.R. Simonson General Electric Company / Aircraft Engine Business Group Advanced Technology...Research Group Chief, Technology Branch FOR THE COMMANDER H. IVAN BUSH Director, Turbine Engine Division . If your address has changed, if you wish to be

Information Technology and People with Disabilities: The Current State of Federal Accessibility. Presented by The Attorney General to The President of the United States.

ERIC Educational Resources Information Center

Department of Justice, Washington, DC. Civil Rights Div.

This report responds to requirements of Section 508 of the Rehabilitation Act, as amended in 1998, concerning the accessibility of federal electronic and information technology to individuals with disabilities. It contains the results of the first executive branch-wide Section 508 evaluation and recommends specific inexpensive, cost-effective, and…

Destination-directed, packet-switched architecture for a geostationary communications satellite network

NASA Technical Reports Server (NTRS)

Ivancic, William D.; Shalkhauser, Mary JO; Bobinsky, Eric A.; Soni, Nitin J.; Quintana, Jorge A.; Kim, Heechul; Wager, Paul; Vanderaar, Mark

1993-01-01

A major goal of the Digital Systems Technology Branch at the NASA Lewis Research Center is to identify and develop critical digital components and technologies that either enable new commercial missions or significantly enhance the performance, cost efficiency, and/or reliability of existing and planned space communications systems. NASA envisions a need for low-data-rate, interactive, direct-to-the-user communications services for data, voice, facsimile, and video conferencing. The network would provide enhanced very-small-aperture terminal (VSAT) communications services and be capable of handling data rates of 64 kbps through 2.048 Mbps in 64-kbps increments. Efforts have concentrated heavily on the space segment; however, the ground segment has been considered concurrently to ensure cost efficiency and realistic operational constraints. The focus of current space segment developments is a flexible, high-throughput, fault-tolerant onboard information-switching processor (ISP) for a geostationary satellite communications network. The Digital Systems Technology Branch is investigating both circuit and packet architectures for the ISP. Destination-directed, packet-switched architectures for geostationary communications satellites are addressed.

[Application of medical imaging to general thoracic surgery].

PubMed

Oizumi, Hiroyuki

2014-07-01

Medical imaging technology is rapidly progressing. Positron emission tomography (PET) has played major role in the staging and choice of treatment modality in lung cancer patients. Magnetic resonance imaging (MRI) is now routinely used for mediastinal tumors and the use of diffusion-weighted images (DWI) may help in the diagnosis of malignancies including lung cancers. The benefits of medical imaging technology are not limited to diagnostics, and include simulation or navigation for complex lung resection and other procedures. Multidetector row computed tomography (MDCT) shortens imaging time to obtain detailed and precise volume data, which improves diagnosis of small-sized lung cancers. 3-dimensional reconstruction of the volume data allows the safe performance of thoracoscopic surgery. For lung lobectomy, identification of the branching structures, diameter, and length of the arteries is useful in selecting the procedure for blood vessel treatment. For lung segmentectomy, visualization of venous branches in the affected segments and intersegmental veins has facilitated the preoperative determination of the anatomical intersegmental plane. Therefore, the application of medical imaging technology is useful in general thoracic surgery.

Immunotherapeutics for Pediatric Solid Tumors | NCI Technology Transfer Center | TTC

Cancer.gov

The National Cancer Institute’s Pediatric Oncology Branch seeks partners interested in licensing or collaborative research to co-develop new immunotherapeutic agents based on chimeric antigen receptor (CARs) for the treatment of pediatric solid tumors.

Diabetes, Obesity, and Other Insulin-Related Diseases | NCI Technology Transfer Center | TTC

Cancer.gov

The National Cancer Institute’s Urologic Oncology Branch seeks partners interested in collaborative research to co-develop small molecule epoxy-guaiane derivative englerin A and related compounds for diseases associated with insulin resistance.

Sun-Earth Day WEBCAST - NASA TV; Host Paul Mortfield, Astronomer Stanford Solar Center and visiting

NASA Technical Reports Server (NTRS)

2002-01-01

Sun-Earth Day WEBCAST - NASA TV; Host Paul Mortfield, Astronomer Stanford Solar Center and visiting students from San Francisco Bay Area Schools Documentation Technology Branch Video communications van (code-JIT)

77 FR 42627 - Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-07-20

... CONTACT: Richard A. Dunham III, Flight Procedure Standards Branch (AFS-420), Flight Technologies and... 2012 Red Cloud, NE., Red Cloud Muni, Takeoff Minimums and Obstacle DP, Orig Effective 23 AUGUST 2012...

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

None

Summary of GATEWAY report evaluating a trial installation of tunable-white LED lighting systems in three classrooms in the Carrollton-Farmers Branch Independent School District in Carrollton, TX. The report provides valuable insights into the use of this technology in a real-world setting.

Quantification of HCV RNA in Clinical Specimens by Branched DNA (bDNA) Technology.

PubMed

Wilber, J C; Urdea, M S

1999-01-01

The diagnosis and monitoring of hepatitis C virus (HCV) infection have been aided by the development of HCV RNA quantification assays A direct measure of viral load, HCV RNA quantification has the advantage of providing information on viral kinetics and provides unique insight into the disease process. Branched DNA (bDNA) signal amplification technology provides a novel approach for the direct quantification of HCV RNA in patient specimens. The bDNA assay measures HCV RNA at physiological levels by boosting the reporter signal, rather than by replicating target sequences as the means of detection, and thus avoids the errors inherent in the extraction and amplification of target sequences. Inherently quantitative and nonradioactive, the bDNA assay is amenable to routine use in a clinical research setting, and has been used by several groups to explore the natural history, pathogenesis, and treatment of HCV infection.

Energy Utilization Technology Curriculum Materials FY 91. Illinois Plan for Industrial Technology Education.

ERIC Educational Resources Information Center

Gallo, Dennis; Welty, Kenneth

This document contains technology-based learning activities for the Illinois energy utilization technology course at the orientation level (grades 9 and 10). This packet includes a course rationale, course mission statement, course description, course outline, suggested learning objectives for each of the energy utilization areas, and suggested…

Pulse Detonation Engine Test Bed Developed

NASA Technical Reports Server (NTRS)

Breisacher, Kevin J.

2002-01-01

A detonation is a supersonic combustion wave. A Pulse Detonation Engine (PDE) repetitively creates a series of detonation waves to take advantage of rapid burning and high peak pressures to efficiently produce thrust. NASA Glenn Research Center's Combustion Branch has developed a PDE test bed that can reproduce the operating conditions that might be encountered in an actual engine. It allows the rapid and cost-efficient evaluation of the technical issues and technologies associated with these engines. The test bed is modular in design. It consists of various length sections of both 2- and 2.6- in. internal-diameter combustor tubes. These tubes can be bolted together to create a variety of combustor configurations. A series of bosses allow instrumentation to be inserted on the tubes. Dynamic pressure sensors and heat flux gauges have been used to characterize the performance of the test bed. The PDE test bed is designed to utilize an existing calorimeter (for heat load measurement) and windowed (for optical access) combustor sections. It uses hydrogen as the fuel, and oxygen and nitrogen are mixed to simulate air. An electronic controller is used to open the hydrogen and air valves (or a continuous flow of air is used) and to fire the spark at the appropriate times. Scheduled tests on the test bed include an evaluation of the pumping ability of the train of detonation waves for use in an ejector and an evaluation of the pollutants formed in a PDE combustor. Glenn's Combustion Branch uses the National Combustor Code (NCC) to perform numerical analyses of PDE's as well as to evaluate alternative detonative combustion devices. Pulse Detonation Engine testbed.

Quinone reduction via secondary B-branch electron transfer in mutant bacterial reaction centers.

PubMed

Laible, Philip D; Kirmaier, Christine; Udawatte, Chandani S M; Hofman, Samuel J; Holten, Dewey; Hanson, Deborah K

2003-02-18

Symmetry-related branches of electron-transfer cofactors-initiating with a primary electron donor (P) and terminating in quinone acceptors (Q)-are common features of photosynthetic reaction centers (RC). Experimental observations show activity of only one of them-the A branch-in wild-type bacterial RCs. In a mutant RC, we now demonstrate that electron transfer can occur along the entire, normally inactive B-branch pathway to reduce the terminal acceptor Q(B) on the time scale of nanoseconds. The transmembrane charge-separated state P(+)Q(B)(-) is created in this manner in a Rhodobacter capsulatus RC containing the F(L181)Y-Y(M208)F-L(M212)H-W(M250)V mutations (YFHV). The W(M250)V mutation quantitatively blocks binding of Q(A), thereby eliminating Q(B) reduction via the normal A-branch pathway. Full occupancy of the Q(B) site by the native UQ(10) is ensured (without the necessity of reconstitution by exogenous quinone) by purification of RCs with the mild detergent, Deriphat 160-C. The lifetime of P(+)Q(B)(-) in the YFHV mutant RC is >6 s (at pH 8.0, 298 K). This charge-separated state is not formed upon addition of competitive inhibitors of Q(B) binding (terbutryn or stigmatellin). Furthermore, this lifetime is much longer than the value of approximately 1-1.5 s found when P(+)Q(B)(-) is produced in the wild-type RC by A-side activity alone. Collectively, these results demonstrate that P(+)Q(B)(-) is formed solely by activity of the B-branch carriers in the YFHV RC. In comparison, P(+)Q(B)(-) can form by either the A or B branches in the YFH RC, as indicated by the biexponential lifetimes of approximately 1 and approximately 6-10 s. These findings suggest that P(+)Q(B)(-) states formed via the two branches are distinct and that P(+)Q(B)(-) formed by the B side does not decay via the normal (indirect) pathway that utilizes the A-side cofactors when present. These differences may report on structural and energetic factors that further distinguish the functional asymmetry of the two cofactor branches.

"GSFC FSB Application of Perspective-Based Inspections"

NASA Technical Reports Server (NTRS)

Shell, Elaine; Shull, Forrest

2004-01-01

The scope of work described in our proposal consisted of developing inspection standards targeted to Branch-specific types of defects (gained from analysis of Branch project defect histories), and including Branch-relevant perspectives and questions to guide defect detection. The tailored inspection guidelines were to be applied on real Branch projects with support as needed from the technology infusion team. This still accurately describes the scope of work performed. It was originally proposed that the Perspective-Based inspection standard would be applied on three projects within the Branch: GPM, JWST, and SDO. Rather than apply the proposed standard to all three, we inserted a new step, in which the standard was instead applied on a single pilot project, cFE (described above). This decision was a good match for the Branch goals since, due to the "design for reuse" nature of cFE, inspections played an even more crucial than usual role in that development process. Also, since cFE is being designed to provide general-purpose functionality, key representatives fiom our target projects were involved in inspections of cFE to provide perspectives from different missions. In this way, they could get some exposure to and the chance to provide feedback on the proposed standards before applying them on their own projects. The Branch-baselined standards will still be applied on GPM, JWST, and SDO, although outside the time frame of this funding. Finally, we originally proposed using the analysis of Branch defect sources to indicate in which phases Perspective-Based inspections could provide the best potential for future improvement, although experience on previous Branch projects suggested that our efforts would likely be focused on requirements and code inspections. In the actual work, we focused exclusively on requirements inspections, as this was the highest-priority work currently being done on our cFE pilot project.

Software Engineering Research/Developer Collaborations (C104)

NASA Technical Reports Server (NTRS)

Shell, Elaine; Shull, Forrest

2005-01-01

The goal of this collaboration was to produce Flight Software Branch (FSB) process standards for software inspections which could be used across three new missions within the FSB. The standard was developed by Dr. Forrest Shull (Fraunhofer Center for Experimental Software Engineering, Maryland) using the Perspective-Based Inspection approach, (PBI research has been funded by SARP) , then tested on a pilot Branch project. Because the short time scale of the collaboration ruled out a quantitative evaluation, it would be decided whether the standard was suitable for roll-out to other Branch projects based on a qualitative measure: whether the standard received high ratings from Branch personnel as to usability and overall satisfaction. The project used for piloting the Perspective-Based Inspection approach was a multi-mission framework designed for reuse. This was a good choice because key representatives from the three new missions would be involved in the inspections. The perspective-based approach was applied to produce inspection procedures tailored for the specific quality needs of the branch. The technical information to do so was largely drawn through a series of interviews with Branch personnel. The framework team used the procedures to review requirements. The inspections were useful for indicating that a restructuring of the requirements document was needed, which led to changes in the development project plan. The standard was sent out to other Branch personnel for review. Branch personnel were very positive. However, important changes were identified because the perspective of Attitude Control System (ACS) developers had not been adequately represented, a result of the specific personnel interviewed. The net result is that with some further work to incorporate the ACS perspective, and in synchrony with the roll out of independent Branch standards, the PBI approach will be implemented in the FSB. Also, the project intends to continue its collaboration with the technology provider (Dr. Forrest Shull) past the end of the grant, to allow a more rigorous quantitative evaluation.

Anatomic suitability of aortoiliac aneurysms for next generation branched systems.

PubMed

Pearce, Benjamin J; Varu, Vinit N; Glocker, Roan; Novak, Zdenek; Jordan, William D; Lee, Jason T

2015-01-01

Preservation of internal iliac flow is an important consideration to prevent ischemic complications during endovascular aneurysm repair. We sought to determine the suitability of aortoiliac aneurysms for off-the-shelf iliac branched systems currently in clinical trial. Patients undergoing abdominal aortic aneurysm repair from 2004 to 2013 at 2 institutions were reviewed. Centerline diameters and lengths of aortoiliac morphology were measured using three-dimensional workstations and compared with inclusion/exclusion criteria for both Cook and Gore iliac branch devices. Of the nearly 2,400 aneurysm repairs performed during the study period, 99 patients had common iliac aneurysms suitable for imaging review. Eighteen of the 99 (18.2%) patients and 25/99 (25.3%) patients fit the inclusion criteria and would have been able to be treated using the Cook and Gore iliac branch devices, respectively. The most common reason for exclusion from Cook was internal iliac diameter of <6 or >9 mm (68/99, 68.7%). The most common reason for exclusion from Gore was proximal common iliac diameter of <17 mm (39/99, 39.4%) and inadequate internal iliac artery diameter of <6.5 or >13.5 mm (37/99, 37.3%). Comparing the included patients across both devices, a total of 35/99 (35.4%) of patients would be eligible for the treatment of aortoiliac aneurysms based on anatomic criteria. Only 35% of the aneurysm repairs involving common iliac arteries would have been candidates for the 2 iliac branch devices currently in trial based on anatomic criteria. The major common reason for exclusion is the internal iliac landing zone for both devices. Design modifications for future generation iliac branch technology should focus on diameter accommodations for the hypogastric branch stent and proximal and distal sizes of the iliac branch components. Familiarity with alternate branch preserving techniques is still needed in the majority of cases. Copyright © 2015 Elsevier Inc. All rights reserved.

Diurnal patterns of branch movement in a desert shrub (Larrea tridentata) track hydraulic stress

NASA Astrophysics Data System (ADS)

Hallmark, A.

2016-12-01

Near-surface, repeat digital photography has emerged as a powerful tool to collect continuous observations of plant traits of individuals and communities across daily, seasonal, and annual time scales. To date, this technology has largely been used to detect patterns of vegetative phenology or "canopy greenness." Little work has been done to use digital photographs to quantify changes in canopy structure or shifts in canopy function on shorter time scales. In this study, we tracked the position of creosote (Larrea tridentata) branches using a timeseries of photos taken in a creosote-dominated shrubland in central New Mexico, USA where radiation, temperature, humidity, soil water content, soil water potential, and stem water potential were also measured. We found that both living and dead woody branches displayed dramatic diurnal patterns of movement, with shrubs only 1-2 m in height sometimes undergoing vertical shifts in branch position of over 0.25 m and changes in branch angle of over 20 degrees. Although circadian rhythms in plants are often attributed to cyclical patterns of photoperiod or temperature, we found that creosote branch movements were best correlated with diurnal changes in stem water potential and atmospheric humidity and that this correlation was stronger under wetter soil conditions. Branches were straighter and oriented in higher positions in times of low hydraulic stress, possibly preparing the creosote to better capture moisture via stemflow. Branches were oriented lower to the ground in times of high hydraulic stress, possibly providing more shade and reducing soil evaporation beneath the base of the shrub. To our knowledge, this is the first study to describe diurnal patterns of branch movements in creosote and is the most extensive dataset of observations of diurnal movements in any woody plant. It provides more knowledge about the biology of a desert shrub, but also offers novel methods for using repeat digital photography to gain inferences about plant form and function.

Electrostatically Tuned Self-Assembly of Branched Amphiphilic Peptides

DOE PAGES

Ting, Christina L.; Frischknecht, Amalie L.; Stevens, Mark J.; ...

2014-06-19

Electrostatics plays an important role in the self-assembly of amphiphilic peptides. To develop a molecular understanding of the role of the electrostatic interactions, we develop a coarse-grained model peptide and apply self-consistent field theory to investigate the peptide assembly into a variety of aggregate nanostructures. We find that the presence and distribution of charged groups on the hydrophilic branches of the peptide can modify the molecular configuration from extended to collapsed. This change in molecular configuration influences the packing into spherical micelles, cylindrical micelles (nanofibers), or planar bilayers. The effects of charge distribution therefore has important implications for the designmore » and utility of functional materials based on peptides.« less

Pen Branch stream corridor and Delta Wetlands change assessment

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

Blohm, J.D.

1995-06-01

Airborne multispectral scanner data from 1987 to 1991 covering the Pen Branch corridor and delta at SRS were utilized to provide a detailed change detection analysis. The multispectral data were geo-referenced to a Universal Transverse Mercator projection using finite element registration. Each year was then classified into eleven different landcover categories, and the yearly changes in each landcover category were analyzed. The decrease in operations of K Reactor in 1988 has resulted in drying of the corridor and delta. This has led to the decline of nonpersistent vegetation and the increase of persistent vegetation. Cattails, willow, and bottomland hardwoods, inmore » particular, have grown to dominate the corridor and most of the delta.« less

Biomedical Use of Aerospace Personal Cooling Garments

NASA Technical Reports Server (NTRS)

Webbon, Bruce W.; Montgomery, Leslie D.; Callaway, Robert K.

1994-01-01

Personal thermoregulatory systems are required during extravehicular activity (EVA) to remove the metabolic heat generated by the suited astronaut. The Extravehicular and Protective Systems (STE) Branch of NASA Ames Research Center has developed advanced concepts or liquid cooling garments for both industrial and biomedical applications for the past 25 years. Examples of this work include: (1) liquid cooled helmets for helicopter pilots and race car drivers; (2) vests for fire and mine rescue personnel; (3) bras to increase the definition of tumors during thermography; (4) lower body garments for young women with erythomelaigia; and (5) whole body garments used by patients with multiple sclerosis (MS). The benefits of the biomedical application of artificial thermoregulation received national attention through two recent events: (1) the liquid-cooled garment technology was inducted into the United States Space Foundation's Space Technology Hall of Fame (1993); and (2) NASA has signed a joint Memorandum of Understanding with the Multiple Sclerosis Association (1994) to share this technology for use with MS patient treatment. The STE Branch is currently pursuing a program to refine thermoregulatory design in light of recent technology developments that might be applicable for use by several medical patient populations. Projects have been initiated to apply thermoregulatory technology for the treatment and/or rehabilitation of patients with spinal cord injuries, multiple sclerosis, migraine headaches, and to help prevent the loss of hair during chemotherapy.

Lidar Technology at the Goddard Laser and Electro-Optics Branch

NASA Technical Reports Server (NTRS)

Heaps, William S.; Obenschain, Arthur F. (Technical Monitor)

2000-01-01

The Laser and Electro-Optics Branch at Goddard Space flight Center was established about three years ago to provide a focused center of engineering support and technology development in these disciplines with an emphasis on spaced based instruments for Earth and Space Science. The Branch has approximately 15 engineers and technicians with backgrounds in physics, optics, and electrical engineering. Members of the Branch are currently supporting a number of space based lidar efforts as well as several technology efforts aimed at enabling future missions. The largest effort within the Branch is support of the Ice, Cloud, and land Elevation Satellite (ICESAT) carrying the Geoscience Laser Altimeter System (GLAS) instrument. The ICESAT/GLAS primary science objectives are: 1) To determine the mass balance of the polar ice sheets and their contributions to global sea level change; and 2) To obtain essential data for prediction of future changes in ice volume and sea-level. The secondary science objectives are: 1) To measure cloud heights and the vertical structure of clouds and aerosols in the atmosphere; 2) To map the topography of land surfaces; and 3) To measure roughness, reflectivity, vegetation heights, snow-cover, and sea-ice surface characteristics. Our efforts have concentrated on the GLAS receiver component development, the Laser Reference Sensor for the Stellar Reference System, the GLAS fiber optics subsystems, and the prelaunch calibration facilities. We will report on our efforts in the development of the space qualified interference filter [Allan], etalon filter, photon counting detectors, etalor/laser tracking system, and instrument fiber optics, as well as specification and selection of the star tracker and development of the calibration test bed. We are also engaged in development work on lidar sounders for chemical species. We are developing new lidar technology to enable a new class of miniature lidar instruments that are compatible with small Discovery-class orbiters now in the NASA planetary program. The purpose of the lidar is to continuously profile the water vapor and dust in the Mars atmosphere from orbit in order to quantify its dynamics, their relationship in the diurnal cycles, and to infer water vapor exchange with the Mars surface. To remotely measure the water-vapor height profiles, we will use the differential absorption lidar (DIAL) technique. We are also developing a laser sensor for measuring the total column content of CO2 in the atmosphere of the earth. CO2 is the principal greenhouse gas and has increased by roughly 80 ppm in the last century and a half. We will report our efforts in the development of the laser transmitter and photon counting detector components for a Mars Orbiting DIAL system and for the CO2 sounder.

BRAVO (Brazilian Astrophysical Virtual Observatory): data mining development

NASA Astrophysics Data System (ADS)

De Carvalho, R. R.; Capelato, H. V.; Velho, H. C.

2007-08-01

The primary goal of the BRAVO project is to generate investment in information technology, with particular emphasis on datamining and statistical analysis. From a scientific standpoint, the participants assembled to date are engaged in several scientific projects in various fields of cosmology, astrophysics, and data analysis, with significant contributions from international partners. These scientists conduct research on clusters of galaxies, small groups of galaxies, elliptical galaxies, population synthesis, N-body simulations, and a variety of studies in stellar astrophysics. One of the main aspects of this project is the incorporation of these disparate areas of astrophysical research within the context of the coherent development of database technology.Observational cosmology is one of the branches of science experiencing the largest growth in the past few decades. large photometric and spectroscopic surveys have been carried out in both hemispheres. As a result, an extraordinary amount of data in all portions of the electromagnetic spectrum exists, but without standard techniques for storage and distribution. This project will utilize several specific astronomical databases, created to store data generated by several instruments (including SOAR, Gemini, BDA, etc), uniting them within a common framework and with standard interfaces. We are inviting members of the entire Brazilian astronomical community to partake in this effort. This will certainly impact both education and outreach efforts, as well as the future development of astrophysical research. Finally, this project will provide a constant investment in human resources. First, it will do so by stimulating ongoing short technical visits to Johns Hopkins University and Caltech. These will allow us to bring software technology and expertise in datamining back to Brazil. Second, we will organize the Summer School on Software Technology in Astrophysics, which will be designed to ensure that the Brazilian scientific community can take full advantage of the benefits offered by the VO project

Micromachined fiber optic Fabry-Perot underwater acoustic probe

NASA Astrophysics Data System (ADS)

Wang, Fuyin; Shao, Zhengzheng; Hu, Zhengliang; Luo, Hong; Xie, Jiehui; Hu, Yongming

2014-08-01

One of the most important branches in the development trend of the traditional fiber optic physical sensor is the miniaturization of sensor structure. Miniature fiber optic sensor can realize point measurement, and then to develop sensor networks to achieve quasi-distributed or distributed sensing as well as line measurement to area monitoring, which will greatly extend the application area of fiber optic sensors. The development of MEMS technology brings a light path to address the problems brought by the procedure of sensor miniaturization. Sensors manufactured by MEMS technology possess the advantages of small volume, light weight, easy fabricated and low cost. In this paper, a fiber optic extrinsic Fabry-Perot interferometric underwater acoustic probe utilizing micromachined diaphragm collaborated with fiber optic technology and MEMS technology has been designed and implemented to actualize underwater acoustic sensing. Diaphragm with central embossment, where the embossment is used to anti-hydrostatic pressure which would largely deflect the diaphragm that induce interferometric fringe fading, has been made by double-sided etching of silicon on insulator. By bonding the acoustic-sensitive diaphragm as well as a cleaved fiber end in ferrule with an outer sleeve, an extrinsic Fabry-Perot interferometer has been constructed. The sensor has been interrogated by quadrature-point control method and tested in field-stable acoustic standing wave tube. Results have been shown that the recovered signal detected by the sensor coincided well with the corresponding transmitted signal and the sensitivity response was flat in frequency range from 10 Hz to 2kHz with the value about -154.6 dB re. 1/μPa. It has been manifest that the designed sensor could be used as an underwater acoustic probe.

Command and Data Handling Branch Internship

NASA Technical Reports Server (NTRS)

Billings, Rachel Mae

2016-01-01

Modular Integrated Stackable Layers (MISL) is a computer system designed for simple, fast, and cost effective flexible reconfiguration in space environments such as the ISS and Orion projects for various uses. Existing applications include wireless and wired communications, data acquisition and instrumentation, and camera systems, and potential applications include bus protocol converters and subsystem control. MISL is based on Texas Instruments (TI)' MSP430 16-bit ultra-low-power microcontroller device. The purpose of my project was to integrate the MISL system with a liquid crystal display (LCD) touchscreen. The LCD, manufactured by Crystalfontz and part number CFAF320240F-035T-TS, is a 320 by 240 RGB resistive color screen including an optional carrier board. The vast majority of the project was done with Altium Designer, a tool for printed circuit board (PCB) schematic capture, 3D design, and FPGA (Field Programmable Gate Array) development. The new PCB was to allow the LCD to directly stack to the rest of MISL. Research was done with datasheets for the TI microcontroller and touchscreen display in order to meet desired hardware specifications. Documentation on prior MISL projects was also utilized. The initial step was to create a schematic for the LCD, power bus, and data bus connections between components. A layout was then designed with the required physical dimensions, routed traces and vias, power and ground planes, layer stacks, and other specified design rules such as plane clearance and hole size. Multiple consultation sessions were held with Hester Yim, the technical discipline lead for the Command and Data Handling Branch, and Christy Herring, the lead PCB layout designer in the Electronic Design and Manufacturing Branch in order to ensure proper configuration. At the moment, the PCB is awaiting revision by the latter-mentioned branch. Afterwards, the board will begin to undergo the manufacturing and testing process. Throughout the internship at Johnson Space Center, I gained several technical and professional skills. I gained proficiency in Altium Designer and experience using subversion clients, as well as knowledge in PSpice with OrCAD and battery design for spaceflight from on-site. I also gained networking, organization, and communication skills throughout meetings with coworkers and other interns. This internship at Johnson Space Center has impacted my future aspirations by further inspiring me to follow a career path into space rated engineering technology and human spaceflight applications. After graduation, I plan to attend graduate Modular Integrated Stackable Layers (MISL) is a computer system designed for simple, fast, and cost effective flexible reconfiguration in space environments such as the ISS and Orion projects for various uses. Existing applications include wireless and wired communications, data acquisition and instrumentation, and camera systems, and potential applications include bus protocol converters and subsystem control. MISL is based on Texas Instruments’ MSP430 16 bit ultra-low power microcontroller device. The purpose of my project was to integrate the MISL system with a liquid crystal display touchscreen. The LCD, manufactured by Crystalfontz and part number CFAF320240F-035T-TS, is a 320x240 RGB resistive color screen including an optional carrier board.The vast majority of the project was done with Altium Designer, a tool for printed circuit board (PCB) schematic capture, 3D design, and FPGA development. The new PCB was to allow the LCD to directly stack to the rest of MISL. Research was done with datasheets for the TI microcontroller and touchscreen display in order to meet desired hardware specifications. Documentation on prior MISL projects was also utilized. The initial step was to create a schematic for the LCD, power bus, and data bus connections between components. A layout was then designed with the required physical dimensions, routed traces and vias, power and ground planes, layer stacks, and other specified design rules such as plane clearance and hole size. Multiple consultation sessions were held with Hester Yim, the technical discipline lead for the Command and Data Handling Branch, and Christy Herring, the lead PCB layout designer in the Electronic Design and Manufacturing Branch in order to ensure proper configuration. At themoment, the PCB is awaiting revision by the latter-mentioned branch. Afterwards, the board will begin to undergo the manufacturing and testing process.Throughout the internship at Johnson Space Center, I gained several technical and professional skills. I gained proficiency in Altium Designer and experience using subversion clients, as well as knowledge in PSpice with OrCAD and battery design for spaceflight from on-site. I also gained networking, organization, and communication skills throughout meetings with coworkers and other interns. This internship at Johnson Space Center has impacted my future aspirations by further inspiring me to follow a career path into space rated engineering technology and human spaceflight applications. After graduation, I plan to attend graduate school for a master's or doctorate degree in electrical or computer engineering.

Direct and quantitative detection of HIV-1 RNA in human plasma with a branched DNA signal amplification assay.

PubMed

Urdea, M S; Wilber, J C; Yeghiazarian, T; Todd, J A; Kern, D G; Fong, S J; Besemer, D; Hoo, B; Sheridan, P J; Kokka, R

1993-11-01

To determine the relative effect of sample matrix on the quantitation of HIV RNA in plasma. Two HIV-positive specimens were diluted into five and 10 different HIV-negative plasma samples, respectively. Branched DNA signal amplification technology and reverse-transcriptase polymerase chain reaction were used to measure the viral load. In one sample the viral load by polymerase chain reaction ranged from undetectable to 1.9 x 10(5) copies/ml, and the branched DNA results ranged from 2.6 x 10(4) to 4.2 x 10(4) HIV RNA equivalent/ml. In the other sample the corresponding figures were 6.3 x 10(4) to 5.5 x 10(5) copies/ml and 5.7 x 10(4) to 7.5 x 10(4) HIV RNA equivalents/ml. In contrast to reverse-transcriptase polymerase chain reaction the branched DNA signal amplification assay does not require a separate extraction step or enzymatic amplification of the target. Therefore this measurement is less affected by the sample matrix and the signal generated is directly proportional to the viral load.

Doppler Lidar System Design via Interdisciplinary Design Concept at NASA Langley Research Center - Part III

NASA Technical Reports Server (NTRS)

Barnes, Bruce W.; Sessions, Alaric M.; Beyon, Jeffrey; Petway, Larry B.

2014-01-01

Optimized designs of the Navigation Doppler Lidar (NDL) instrument for Autonomous Landing Hazard Avoidance Technology (ALHAT) were accomplished via Interdisciplinary Design Concept (IDEC) at NASA Langley Research Center during the summer of 2013. Three branches in the Engineering Directorate and three students were involved in this joint task through the NASA Langley Aerospace Research Summer Scholars (LARSS) Program. The Laser Remote Sensing Branch (LRSB), Mechanical Systems Branch (MSB), and Structural and Thermal Systems Branch (STSB) were engaged to achieve optimal designs through iterative and interactive collaborative design processes. A preliminary design iteration was able to reduce the power consumption, mass, and footprint by removing redundant components and replacing inefficient components with more efficient ones. A second design iteration reduced volume and mass by replacing bulky components with excessive performance with smaller components custom-designed for the power system. The existing power system was analyzed to rank components in terms of inefficiency, power dissipation, footprint and mass. Design considerations and priorities are compared along with the results of each design iteration. Overall power system improvements are summarized for design implementations.

Towards organ printing: engineering an intra-organ branched vascular tree

PubMed Central

Visconti, Richard P; Kasyanov, Vladimir; Gentile, Carmine; Zhang, Jing; Markwald, Roger R; Mironov, Vladimir

2013-01-01

Importance of the field Effective vascularization of thick three-dimensional engineered tissue constructs is a problem in tissue engineering. As in native organs, a tissue-engineered intra-organ vascular tree must be comprised of a network of hierarchically branched vascular segments. Despite this requirement, current tissue-engineering efforts are still focused predominantly on engineering either large-diameter macrovessels or microvascular networks. Areas covered in this review We present the emerging concept of organ printing or robotic additive biofabrication of an intra-organ branched vascular tree, based on the ability of vascular tissue spheroids to undergo self-assembly. What the reader will gain The feasibility and challenges of this robotic biofabrication approach to intra-organ vascularization for tissue engineering based on organ-printing technology using self-assembling vascular tissue spheroids including clinically relevantly vascular cell sources are analyzed. Take home message It is not possible to engineer 3D thick tissue or organ constructs without effective vascularization. An effective intra-organ vascular system cannot be built by the simple connection of large-diameter vessels and microvessels. Successful engineering of functional human organs suitable for surgical implantation will require concomitant engineering of a ‘built in’ intra-organ branched vascular system. Organ printing enables biofabrication of human organ constructs with a ‘built in’ intra-organ branched vascular tree. PMID:20132061

Peer exchange, "strategic goals to manage research programs : building a premier research program".

DOT National Transportation Integrated Search

2013-06-10

The objectives of the District Department of Transportation (DDOT) Research, Development, & Technology Transfer (RDT) Branch Peer Exchange were: : 1. Receive peer input and perspective on RDT Strategic Plan. : 2. Obtain assistance in assessing validi...

Human and information

NASA Astrophysics Data System (ADS)

Mizuno, Hiroyuki

This is a lecture at the 15th anniversary of JICST Chugoku Branch Office. A recent progress of VLSI technologies will make possible to simulate some functions of human beings, the results of which will prepare next new innovation for a coming now century.

75 FR 59236 - Privacy Act of 1974; System of Records

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-27

... Warrior Care and Recovery Transition Coordination Program System Solution SYSTEM LOCATION: Manpower Information Systems Technology Branch, Manpower Information Systems Division, Manpower and Reserve Affairs... analysis, tracking, reporting, evaluating program effectiveness and conducting research. ROUTINE USES OF...

BIOVENTING DEVELOPMENT PROGRAM (TREATMENT AND DESTRUCTION BRANCH, LRPCD, NRMRL)

EPA Science Inventory

In a continuing effort to develop environment-friendly and cost-effective remediation technologies, the Land Remediation and Pollution Control Division (LRPCD) conducts an aggressive research and development program in bioventing. LRPCD's bioventing program is multi-faceted, with...

AN OVERVIEW OF EPA'S COMBUSTION RESEARCH PROGRAM

EPA Science Inventory

The Air Pollution Technology Branch (APTB) of the U.S. Environmental Protection Agency's National Risk Management Research Laboratory, located in Research Triangle Park, North Carolina, performs a variety of combustion related research. Currently APTB's focus is on mercury from c...

China Naval Modernization: Implications for U.S. Navy Capabilities - Background and Issues for Congress

DTIC Science & Technology

2013-09-05

trials of the Liaoning....”54 A May 16, 2013, press report stated: It will take less time for China to learn how to effectively operate aircraft...carriers than it took the U.S., the commander of the U.S. Navy’s Atlantic air arm, Rear Adm. Ted Branch said Wednesday. “They will learn faster than we...technology but it’s still a tough nut to crack to learn how to do this business,” Branch said. “They still have a lot of learning to do before they have a

Cercocarpus Kunth: mountain-mahogany

Treesearch

Stanley G. Kitchen

2008-01-01

The mountain mahoganies - genus Cercocarpus - are 8 to 10 species of moderately to intricately branched shrubs or small trees that are endemic to dry coastal and interior mountains of the western United States and Mexico (Stutz 1990). Leaves are generally persistent and stems are unarmed. Two of the most widely distributed and utilized species are described here.

Orbiter Entry Aerothermodynamics Practical Engineering and Applied Research

NASA Technical Reports Server (NTRS)

Campbell, Charles H.

2009-01-01

The contents include: 1) Organization of the Orbiter Entry Aeroheating Working Group; 2) Overview of the Principal RTF Aeroheating Tools Utilized for Tile Damage Assessment; 3) Description of the Integrated Tile Damage Assessment Team Analyses Process; 4) Space Shuttle Flight Support Process; and 5) JSC Applied Aerosciences and CFD Branch Applied Research Interests.

The branching ratio K → ev/K → μv: A test of V-A theory of weak interactions

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

McReynolds, John Frederick

1970-09-16

An optical spark chamber experiment utilizing an axially focusing cylindrically symmetric spectrometer and limits were stopped on the spectrometer axis. Events were scanned and measured on SASS, an automatic scanning system. A total of 150, 000 events were measured, analyzed,and kinematically reconstructed.

Leaf, woody, and root biomass of Populus irrigated with landfill leachate

Treesearch

Jill A. Zalesny; Ronald S., Jr. Zalesny; D.R. Coyle; R.B. Hall

2007-01-01

Poplar (Populus spp.) trees can be utilized for ecological leachate disposal when applied as an irrigation source for managed tree systems. Our objective was to evaluate differences in tree height, diameter, volume, and biomass of leaf, stem, branch, and root tissues of Populus trees after two seasons of irrigation with municipal...

Seasonal patterns of reserve and soluble carbohydrates in mature sugar maple (Acer saccharum)

Treesearch

B.L. Wong; K.L. Baggett; A.H. Rye

2003-01-01

Sugar maple (Acer saccharum Marsh.) trees exhibit seasonal patterns of production, accumulation, and utilization of nonstructural carbohydrates that are closely correlated with phenological events and (or) physiological processes. The simultaneous seasonal patterns of both reserve and soluble carbohydrates in the leaves, twigs, branches, and trunks of healthy mature...

Acrylic and metal based Y-branch plastic optical fiber splitter with optical NOA63 polymer waveguide taper region

NASA Astrophysics Data System (ADS)

Ehsan, Abang Annuar; Shaari, Sahbudin; Rahman, Mohd Kamil Abd.

2011-01-01

We proposed a simple low-cost acrylic and metal-based Y-branch plastic optical fiber (POF) splitter which utilizes a low cost optical polymer glue NOA63 as the main waveguiding medium at the waveguide taper region. The device is composed of three sections: an input POF waveguide, a middle waveguide taper region and output POF waveguides. A desktop high speed CNC engraver is utilized to produce the mold inserts used for the optical devices. Short POF fibers are inserted into the engraved slots at the input and output ports. UV curable optical polymer glue NOA63 is injected into the waveguide taper region and cured. The assembling is completed when the top plate is positioned to enclose the device structure and connecting screws are secured. Both POF splitters have an average insertion loss of 7.8 dB, coupling ratio of 55: 45 and 57: 43 for the acrylic and metal-based splitters respectively. The devices have excess loss of 4.82 and 4.73 dB for the acrylic and metal-based splitters respectively.

Overview of CMC Research at NASA Glenn Research Center

NASA Technical Reports Server (NTRS)

Grady, Joseph E.

2011-01-01

CMC technology development in the Ceramics Branch at NASA Glenn Research Center addresses Aeronautics propulsion goals across subsonic, supersonic and hypersonic flight regimes. Combustor, turbine and exhaust nozzle applications of CMC materials will enable NASA to demonstrate reduced fuel consumption, emissions, and noise in advanced gas turbine engines. Applications ranging from basic Fundamental Aeronautics research activities to technology demonstrations in the new Integrated Systems Research Program will be discussed.

Distributed utility technology cost, performance, and environmental characteristics

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

Wan, Y; Adelman, S

1995-06-01

Distributed Utility (DU) is an emerging concept in which modular generation and storage technologies sited near customer loads in distribution systems and specifically targeted demand-side management programs are used to supplement conventional central station generation plants to meet customer energy service needs. Research has shown that implementation of the DU concept could provide substantial benefits to utilities. This report summarizes the cost, performance, and environmental and siting characteristics of existing and emerging modular generation and storage technologies that are applicable under the DU concept. It is intended to be a practical reference guide for utility planners and engineers seeking informationmore » on DU technology options. This work was funded by the Office of Utility Technologies of the US Department of Energy.« less

Space Flight Software Development Software for Intelligent System Health Management

NASA Technical Reports Server (NTRS)

Trevino, Luis C.; Crumbley, Tim

2004-01-01

The slide presentation examines the Marshall Space Flight Center Flight Software Branch, including software development projects, mission critical space flight software development, software technical insight, advanced software development technologies, and continuous improvement in the software development processes and methods.

California Dreaming.

ERIC Educational Resources Information Center

Quinn, Judy

1992-01-01

Describes the design plans for San Francisco Public Library's new Main Library. Highlights include administrative issues, including the role of branch libraries; funding; technology, both for the building itself and for the collections; accessibility for the physically impaired; special collections; and future plans, including an integrated…

Bibliography on the Design and Performance of Rail Track Structures

DOT National Transportation Integrated Search

1974-01-01

This bibliography was prepared as part of the Rail Supporting Technology Program being sponsored by the Rail Programs Branch of the Urban Mass Transportation Administration. It is based on the reference material that was used to evaluate the technica...

Silica-Coated Nanodiamonds for Imaging and Delivery of Therapeutic Agents | NCI Technology Transfer Center | TTC

Cancer.gov

The NCI Radiation Oncology Branch and the NHLBI Laboratory of Single Molecule Biophysics seek parties to co-develop fluorescent nanodiamonds for use as in vivo and in vitro optical tracking probes toward commercialization.

Internationalizing Practical ChE Education: The M.I.T. Practice School in Japan.

ERIC Educational Resources Information Center

O'Connor, Andrea J.; Kandas, Angelo W.; Natori, Yukikazu; Hatton, T. Alan

1999-01-01

Describes the establishment, benefits, and difficulties of an overseas branch of the Massachusetts Institute of Technology's (MIT) chemical engineering Practice School for student internship study at the Mitsubishi Chemical Corporation's Mizushima Plant in Kurashiki, Japan. (WRM)

Outsourcing the Portal: Another Branch in the Decision Tree.

ERIC Educational Resources Information Center

McMahon, Tim

2000-01-01

Discussion of the management of information resources in organizations focuses on the use of portal technologies to update intranet capabilities. Considers application outsourcing decisions, reviews benefits (including reducing costs) as well as concerns, and describes application service providers (ASPs). (LRW)

Shaping highly regular glass architectures: A lesson from nature

PubMed Central

Schoeppler, Vanessa; Reich, Elke; Vacelet, Jean; Rosenthal, Martin; Pacureanu, Alexandra; Rack, Alexander; Zaslansky, Paul; Zolotoyabko, Emil; Zlotnikov, Igor

2017-01-01

Demospongiae is a class of marine sponges that mineralize skeletal elements, the glass spicules, made of amorphous silica. The spicules exhibit a diversity of highly regular three-dimensional branched morphologies that are a paradigm example of symmetry in biological systems. Current glass shaping technology requires treatment at high temperatures. In this context, the mechanism by which glass architectures are formed by living organisms remains a mystery. We uncover the principles of spicule morphogenesis. During spicule formation, the process of silica deposition is templated by an organic filament. It is composed of enzymatically active proteins arranged in a mesoscopic hexagonal crystal-like structure. In analogy to synthetic inorganic nanocrystals that show high spatial regularity, we demonstrate that the branching of the filament follows specific crystallographic directions of the protein lattice. In correlation with the symmetry of the lattice, filament branching determines the highly regular morphology of the spicules on the macroscale. PMID:29057327

Flywheels Upgraded for Systems Research

NASA Technical Reports Server (NTRS)

Jansen, Ralph H.

2003-01-01

With the advent of high-strength composite materials and microelectronics, flywheels are becoming attractive as a means of storing electrical energy. In addition to the high energy density that flywheels provide, other advantages over conventional electrochemical batteries include long life, high reliability, high efficiency, greater operational flexibility, and higher depths of discharge. High pulse energy is another capability that flywheels can provide. These attributes are favorable for satellites as well as terrestrial energy storage applications. In addition to energy storage for satellites, the several flywheels operating concurrently can provide attitude control, thus combine two functions into one system. This translates into significant weight savings. The NASA Glenn Research Center is involved in the development of this technology for space and terrestrial applications. Glenn is well suited for this research because of its world-class expertise in power electronics design, rotor dynamics, composite material research, magnetic bearings, and motor design and control. Several Glenn organizations are working together on this program. The Structural Mechanics and Dynamics Branch is providing magnetic bearing, controls, and mechanical engineering skills. It is working with the Electrical Systems Development Branch, which has expertise in motors and generators, controls, and avionics systems. Facility support is being provided by the Space Electronic Test Engineering Branch, and the program is being managed by the Space Flight Project Branch. NASA is funding an Aerospace Flywheel Technology Development Program to design, fabricate, and test the Attitude Control/Energy Storage Experiment (ACESE). Two flywheels will be integrated onto a single power bus and run simultaneously to demonstrate a combined energy storage and 1-degree-of-freedom momentum control system. An algorithm that independently regulates direct-current bus voltage and net torque output will be experimentally demonstrated.

Activities of the Institute of Chemical Processing of Coal at Zabrze

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

Dreszer, K.

1995-12-31

The Institute of Chemical Processing of Coal at Zabrze was established in 1955. The works on carbochemical technologies have been, therefore, carried out at the Institute for 40 years. The targets of the Institute`s activities are research, scientific and developing works regarding a sensible utilization of fuels via their processing into more refined forms, safe environment, highly efficient use of energy carriers and technological products of special quality. The Institute of Chemical Processing of Coal has been dealing with the following: optimized use of home hard coals; improvement of classic coal coking technologies, processing and utilization of volatile coking products;more » production technologies of low emission rate fuels for communal management; analyses of coal processing technologies; new technologies aimed at increasing the efficiency of coal utilization for energy-generating purposes, especially in industry and studies on the ecological aspects of these processes; production technologies of sorbents and carbon activating agents and technologies of the utilization; rationalization of water and wastes management in the metallurgical and chemical industries in connection with removal of pollution especially dangerous to the environment from wastes; utilization technologies of refined materials (electrode cokes, binders, impregnating agents) for making electrodes, refractories and new generation construction carbon materials; production technologies of high quality bituminous and bituminous and resin coating, anti-corrosive and insulation materials; environmentally friendly utilization technologies for power station, mine and other wastes, and dedusting processes in industrial gas streams.« less

The Role of Thoracic Medial Branch Blocks in Managing Chronic Mid and Upper Back Pain: A Randomized, Double-Blind, Active-Control Trial with a 2-Year Followup

PubMed Central

Manchikanti, Laxmaiah; Singh, Vijay; Falco, Frank J. E.; Cash, Kimberly A.; Pampati, Vidyasagar; Fellows, Bert

2012-01-01

Study Design. A randomized, double-blind, active-control trial. Objective. To determine the clinical effectiveness of therapeutic thoracic facet joint nerve blocks with or without steroids in managing chronic mid back and upper back pain. Summary of Background Data. The prevalence of thoracic facet joint pain has been established as 34% to 42%. Multiple therapeutic techniques utilized in managing chronic thoracic pain of facet joint origin include medial branch blocks, radiofrequency neurotomy, and intraarticular injections. Methods. This randomized double-blind active controlled trial was performed in 100 patients with 50 patients in each group who received medial branch blocks with local anesthetic alone or local anesthetic and steroids. Outcome measures included the numeric rating scale (NRS), Oswestry Disability Index (ODI), opioid intake, and work status, at baseline, 3, 6, 12, 18, and 24 months. Results. Significant improvement with significant pain relief and functional status improvement of 50% or more were observed in 80% of the patients in Group I and 84% of the patients in Group II at 2-year followup. Conclusions. Therapeutic medial branch blocks of thoracic facets with or without steroids may provide a management option for chronic function-limiting thoracic pain of facet joint origin. PMID:22851967

Cytoplasmic Nucleation and Atypical Branching Nucleation Generate Endoplasmic Microtubules in Physcomitrella patens[OPEN

PubMed Central

Nakaoka, Yuki; Kimura, Akatsuki; Tani, Tomomi; Goshima, Gohta

2015-01-01

The mechanism underlying microtubule (MT) generation in plants has been primarily studied using the cortical MT array, in which fixed-angled branching nucleation and katanin-dependent MT severing predominate. However, little is known about MT generation in the endoplasm. Here, we explored the mechanism of endoplasmic MT generation in protonemal cells of Physcomitrella patens. We developed an assay that utilizes flow cell and oblique illumination fluorescence microscopy, which allowed visualization and quantification of individual MT dynamics. MT severing was infrequently observed, and disruption of katanin did not severely affect MT generation. Branching nucleation was observed, but it showed markedly variable branch angles and was occasionally accompanied by the transport of nucleated MTs. Cytoplasmic nucleation at seemingly random locations was most frequently observed and predominated when depolymerized MTs were regrown. The MT nucleator γ-tubulin was detected at the majority of the nucleation sites, at which a single MT was generated in random directions. When γ-tubulin was knocked down, MT generation was significantly delayed in the regrowth assay. However, nucleation occurred at a normal frequency in steady state, suggesting the presence of a γ-tubulin-independent backup mechanism. Thus, endoplasmic MTs in this cell type are generated in a less ordered manner, showing a broader spectrum of nucleation mechanisms in plants. PMID:25616870

Accurate airway segmentation based on intensity structure analysis and graph-cut

NASA Astrophysics Data System (ADS)

Meng, Qier; Kitsaka, Takayuki; Nimura, Yukitaka; Oda, Masahiro; Mori, Kensaku

2016-03-01

This paper presents a novel airway segmentation method based on intensity structure analysis and graph-cut. Airway segmentation is an important step in analyzing chest CT volumes for computerized lung cancer detection, emphysema diagnosis, asthma diagnosis, and pre- and intra-operative bronchoscope navigation. However, obtaining a complete 3-D airway tree structure from a CT volume is quite challenging. Several researchers have proposed automated algorithms basically based on region growing and machine learning techniques. However these methods failed to detect the peripheral bronchi branches. They caused a large amount of leakage. This paper presents a novel approach that permits more accurate extraction of complex bronchial airway region. Our method are composed of three steps. First, the Hessian analysis is utilized for enhancing the line-like structure in CT volumes, then a multiscale cavity-enhancement filter is employed to detect the cavity-like structure from the previous enhanced result. In the second step, we utilize the support vector machine (SVM) to construct a classifier for removing the FP regions generated. Finally, the graph-cut algorithm is utilized to connect all of the candidate voxels to form an integrated airway tree. We applied this method to sixteen cases of 3D chest CT volumes. The results showed that the branch detection rate of this method can reach about 77.7% without leaking into the lung parenchyma areas.

Optical fiber technology development in Poland

NASA Astrophysics Data System (ADS)

Wójcik, Waldemar; Romaniuk, Ryszard

2010-09-01

Optical fiber technology is an important branch of science and technology, but also economy. Together with related disciplines it creates wider areas like optoelectronics and photonics. Optical fiber technology is developed in this country rather dynamically, proportionally to the available funds designed locally for research and applications. Recently this development was enhanced with considerable funds from European Operational Funds Innovative Economy POIG and Human Capital POKL. The paper summarizes the development of optical fiber technology in Poland from academic perspective during the period of last 2-3 years. The digest is very probably not full. An emphasis is put on development of optical fiber manufacturing methods. This development was illustrated by a few examples of optical fiber applications.

Reactive processing of biodegradable polyesters with dicumyl peroxide: A structural, rheological and property study

NASA Astrophysics Data System (ADS)

Canale, Philip Louis

Studies were undertaken to gain an understanding as to the mechanistic, rheological, thermal, and mechanical property effects that can be expected by reactively extruding biodegradable polyesters with dicumyl peroxide (DCP). The two main polymers used were poly(epsilon-caprolactone), (PCL), and proprietary copolyester, Eastar 14766. The reactive extrusions were carried out at 160°C at various DCP levels. The percent branching and type of branching, (tetraor tri-functional), were determined by SEC and by the comparison of branched distributions to statistical models. It was found that PCL quantitatively formed tetra-functional branches while the Eastar 14766 formed a combination of tri- and tetra-functional branch points. The Eastar 14766 was also shown to be more reactive than the PCL, with half as much DCP being required to achieve equivalent amounts of branching. Thermal properties were studied by differential scanning calorimetry. In a multi-phase, upper critical solution temperature (UCST) system, such as Eastar 14766, the branches resulted in a compatiblization effect. This was shown as an increase in the glass transition temperature rising with the DCP level used in the reactive extrusion. The crystallization temperature decreased, and the heat of melting increased as the amount of branching/DCP level increased. The latter was attributed to the lower stereo regularity and/or the lower crystallization rate. The crystallization temperature increase is attributed to increased kinetics required, due to slower phase separation or increased viscosity. Branching/DCP level was shown to have a smaller effect on PCL, with the largest effect being an 11% relative decrease in heat of melting at the highest DCP level. Rheology studies showed that both Eastar 14766 and PCL displayed typical branching behavior with increases in melt elasticity and zero shear viscosity. An estimate of the plateau modulus revealed the entanglement molecular weight for Eastar 14766 to be approximately three times lower than that of PCL. This explained why Eastar 14766 had a larger enhancement in zero shear viscosity and elasticity than PCL. It was also noted, qualitatively, that branching in both materials produced a broadened elastic modulus curve. This was attributed to the difference in the molecular weight/relaxation time relationship between linear and branched materials. Tensile modulus and elongation studies showed PCL to be insensitive to branching. However, studies with Eastar 14766 showed tensile strength and elongation at break to be increased 30 and 10% respectively with branching. Tensile modulus on the other hand, remained relatively unchanged. These effects were attributed to phase changes due to increased compatibilization of the copolymer. A brief study of a 50/50 blend of Eastar 14766 and Poly(lactic acid) with and without DCP showed that the blend with DCP had a similar tensile strength. However, the ultimate elongation increased by 150% and the modulus decreased of 26%. This shows the possible utility of reactive blending with peroxides in order to achieve a higher degree of compatibilization in a blend.

Scientific integrity memorandum

NASA Astrophysics Data System (ADS)

Showstack, Randy

2009-03-01

U.S. President Barack Obama signed a presidential memorandum on 9 March to help restore scientific integrity in government decision making. The memorandum directs the White House Office of Science and Technology Policy to develop a strategy within 120 days that ensures that "the selection of scientists and technology professionals for science and technology positions in the executive branch is based on those individuals' scientific and technological knowledge, credentials, and experience; agencies make available to the public the scientific or technological findings or conclusions considered or relied upon in policy decisions; agencies use scientific and technological information that has been subject to well-established scientific processes such as peer review; and agencies have appropriate rules and procedures to ensure the integrity of the scientific process within the agency, including whistleblower protection."

Neural network technologies

NASA Technical Reports Server (NTRS)

Villarreal, James A.

1991-01-01

A whole new arena of computer technologies is now beginning to form. Still in its infancy, neural network technology is a biologically inspired methodology which draws on nature's own cognitive processes. The Software Technology Branch has provided a software tool, Neural Execution and Training System (NETS), to industry, government, and academia to facilitate and expedite the use of this technology. NETS is written in the C programming language and can be executed on a variety of machines. Once a network has been debugged, NETS can produce a C source code which implements the network. This code can then be incorporated into other software systems. Described here are various software projects currently under development with NETS and the anticipated future enhancements to NETS and the technology.

Materials and Manufacturing Technology Directorate Thermal Sciences and Materials Branch (Overview)

DTIC Science & Technology

2010-09-01

Molecular Mechanics for thermo-mechanical response Materials Characterization • CNT modified durable thermal interface ( DTI ) • MEMS-based RTD micro...stabilization. Surface Characterization by Atomic Force Microscopy: Probing Thermal, Electrical, and Mechanical Properties Heater Current Path Anchor Leg 50 µm

Trials advance low-salinity culture of cobia, pompano, other species

USDA-ARS?s Scientific Manuscript database

A collaborative effort between the Agricultural Research Service of USDA and Harbor Branch Oceanographic Institute of Florida Atlantic University, which was established to develop technologies for rearing marine fish in low-cost, energy efficient low-salinity recirculating aquaculture systems (RAS) ...

Trials advance low-salinity culture of Cobia, Pompano, and other species

USDA-ARS?s Scientific Manuscript database

An ongoing collaborative research effort between scientists of the USDA Agricultural Research Service and aquaculture researchers of the Harbor Branch Oceanographic Institute at Florida Atlantic University to develop technologies for rearing fish in low salinity recirculating aquaculture systems is ...

2018 WINTER TRI-Association Small Business Advisory Panel (TRIAD) Conference

DTIC Science & Technology

2018-01-30

Senior Staff Officer, Deputy Assistant Secretary, Acquisition – SAF/ AQC, Pentagon; Branch Chief, Math & Science Division of the Air Force Office...encourage the pursuit of careers in science, technology, engineering and math (STEM). CAROL WOODEN Director of Supplier Diversity, Corporate Supply

48 CFR 35.007 - Solicitations.

Code of Federal Regulations, 2010 CFR

2010-10-01

... offeror's experience; (5) Pertinent novel ideas in the specific branch of science and technology involved...). (i) In circumstances when a concern has a new idea or product to discuss that incorporates the... CONTRACTING RESEARCH AND DEVELOPMENT CONTRACTING 35.007 Solicitations. (a) The submission and subsequent...

48 CFR 35.007 - Solicitations.

Code of Federal Regulations, 2011 CFR

2011-10-01

... offeror's experience; (5) Pertinent novel ideas in the specific branch of science and technology involved...). (i) In circumstances when a concern has a new idea or product to discuss that incorporates the... CONTRACTING RESEARCH AND DEVELOPMENT CONTRACTING 35.007 Solicitations. (a) The submission and subsequent...

76 FR 17110 - Proposed Collection; Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2011-03-28

... automated collection techniques or other forms of information technology. DATES: Consideration will be given... Expansion Memorial Park, Ballpark Village Field at Busch Stadium, and the Soldiers' Military Memorial Museum... Branch announces a proposed new public information collection and seeks public comment on the provisions...

Performance Engineering as an Expert System.

ERIC Educational Resources Information Center

Harmon, Paul

1984-01-01

Considers three powerful techniques--heuristics, context trees, and search via backward chaining--that a knowledge engineer might employ to develop an expert system to automate performance engineering, i.e., the branch of instructional technology that focuses on the problems of business and industry. (MBR)

Reasoning with Geometric Shapes

ERIC Educational Resources Information Center

Seah, Rebecca

2015-01-01

Geometry belongs to branches of mathematics that develop students' visualisation, intuition, critical thinking, problem solving, deductive reasoning, logical argument and proof (Jones, 2002). It provides the basis for the development of spatial sense and plays an important role in acquiring advanced knowledge in science, technology, engineering,…

Recent advances and developments on integrating nanotechnology with chemiluminescence assays.

PubMed

Tiwari, Ashish; Dhoble, S J

2018-04-01

Chemiluminescence (CL) techniques are extensively utilized for detection of analytes due to their high sensitivity, rapidity and selectivity. With the advent of nanotechnology and incorporation of the nanoparticles in the CL system has revolutionized the assays due to their unique optical and mechanical properties. Several CL-based reactions have been developed where these nanoparticle based CL sensors have evolved as excellent prospects for sensing in various analytical applications. This review article addresses the nanoparticles based CL detection system that are recently developed, the mechanisms has been summarized and the role of luminophors have been discussed. This article critically analyzes the optimal conditions for the CL detection along with quantitative assessment of the analytes. We have included the use of semiconductor nanoparticles, metal nanoparticles, graphene based nanostructures, mesoporous nanospheres, layered double hydroxides, clays for CL detection. The scope and application of these nanoscale material based CL system in various branches of science and technology including chemistry, biomedical applications, pharmaceutics, food, environmental and toxicological applications has been critically summarized. Copyright © 2017 Elsevier B.V. All rights reserved.

CO2 Removal and Atmosphere Revitalization Systems for Next Generation Space Flight

NASA Technical Reports Server (NTRS)

Luna, Bernadette; Mulloth, Lila M.; Varghese, Mini M.; Hogan, John Andrew

2010-01-01

Removal of metabolic CO2 from breathing air is a vital process for life support in all crewed space missions. A CO2 removal processor called the Low Power CO2 Removal (LPCOR) system is being developed in the Bioengineering Branch at NASA Ames Research Center. LPCOR utilizes advanced adsorption and membrane gas separation processes to achieve substantial power and mass reduction when compared to the state-of-the-art carbon dioxide removal assembly (CORA) of the US segment of the International Space Station (ISS). LPCOR is an attractive alternative for use in commercial spacecraft for short-duration missions and can easily be adapted for closed-loop life support applications. NASA envisions a next-generation closed-loop atmosphere revitalization system that integrates advanced CO2 removal, O2 recovery, and trace contaminant control processes to improve overall system efficiency. LPCOR will serve as the front end to such a system. LPCOR is a reliable air revitalization technology that can serve both the near-term and long-term human space flight needs of NASA and its commercial partners.

Hybrid Power Management (HPM)

NASA Technical Reports Server (NTRS)

Eichenberg, Dennis J.

2007-01-01

The NASA Glenn Research Center s Avionics, Power and Communications Branch of the Engineering and Systems Division initiated the Hybrid Power Management (HPM) Program for the GRC Technology Transfer and Partnership Office. HPM is the innovative integration of diverse, state-of-the-art power devices in an optimal configuration for space and terrestrial applications. The appropriate application and control of the various power devices significantly improves overall system performance and efficiency. The advanced power devices include ultracapacitors and fuel cells. HPM has extremely wide potential. Applications include power generation, transportation systems, biotechnology systems, and space power systems. HPM has the potential to significantly alleviate global energy concerns, improve the environment, and stimulate the economy. One of the unique power devices being utilized by HPM for energy storage is the ultracapacitor. An ultracapacitor is an electrochemical energy storage device, which has extremely high volumetric capacitance energy due to high surface area electrodes, and very small electrode separation. Ultracapacitors are a reliable, long life, maintenance free, energy storage system. This flexible operating system can be applied to all power systems to significantly improve system efficiency, reliability, and performance. There are many existing and conceptual applications of HPM.

18th Space Photovoltaic Research and Technology Conference

NASA Technical Reports Server (NTRS)

Morton, Thomas L. (Compiler)

2005-01-01

The 18th Space Photovoltaic Research and Technology (SPRAT XVIII) Conference was held September 16 to 18, 2003, at the Ohio Aerospace Institute (OAI) in Brook Park, Ohio. The SPRAT conference, hosted by the Photovoltaic and Space Environments Branch of the NASA Glenn Research Center, brought together representatives of the space photovoltaic community from around the world to share the latest advances in space solar cell technology. This year s conference continued to build on many of the trends shown in SPRAT XVII-the continued advances of thin-film and multijunction solar cell technologies and the new issues required to qualify those types of cells for space applications.

Proceedings of the 19th Space Photovoltaic Research and Technology Conference

NASA Technical Reports Server (NTRS)

Castro, Stephanie (Compiler); Morton, Thomas (Compiler)

2007-01-01

The 19th Space Photovoltaic Research and Technology Conference (SPRAT XIX) was held September 20 to 22, 2005, at the Ohio Aerospace Institute (OAI) in Brook Park, Ohio. The SPRAT Conference, hosted by the Photovoltaic and Space Environments Branch of the NASA Glenn Research Center, brought together representatives of the space photovoltaic community from around the world to share the latest advances in space solar cell technology. This year's conference continued to build on many of the trends shown in SPRAT XVIII-the continued advances of thin-film and multijunction solar cell technologies and the new issues required to qualify those types of cells for space applications.

Insect enemies of birch

Treesearch

James G. Conklin

1969-01-01

Native birches are subject to attack by insects at all stages of growth from the germinating seedling to the mature tree. All parts of the tree—roots, stem, branches, foliage, and even the developing seed—may be utilized as feeding sites by insects of one kind or another. An enumeration of the many insects recorded in the literature as feeders on...

Training Employees of a Public Iranian Bank on Emotional Intelligence Competencies

ERIC Educational Resources Information Center

Dadehbeigi, Mina; Shirmohammadi, Melika

2010-01-01

Purpose: The purpose of this paper is to examine the possibility of developing emotional intelligence (EI) as conceptualized in Boyatzis et al.'s competency model. Design/methodology/approach: Designing a context-based EI training program, the study utilized a sample of 68 fully-employed members of five branches of a public bank in Iran; each…

Public Library Service to Children in Oklahoma.

ERIC Educational Resources Information Center

Wentroth, Mary Ann

Because of the low density of its population and subsequent low property tax support, library service in Oklahoma is based on the multicounty library operating as a single unit. With the help of federal funds, such units now cover one-third of the state and 60 percent of its population utilizing branch libraries and bookmobile service. Service to…

Transferability of Military-Trained Medical Personnel to the Civilian Sector.

ERIC Educational Resources Information Center

Nathan (Robert R.) Associates, Inc., Washington, DC.

This study addresses itself to the problem of what should be done to increase the civilian medical/health field utilization of men who have received medical training and experience while in military service. It was found that military men were influenced in their decision for or against a civilian health career by: military service branch, length…

Technology Utilization Conference Series, volume 2

NASA Technical Reports Server (NTRS)

1975-01-01

Proceedings of a series of technology utilization conferences are presented. Commercial applications of space technology, machine tool and metal fabrication, energy and pollution, and mechanical design are among the topics discussed. Emphasis is placed on technology transfer and the minority businessman.

Center for development technology and program in technology and human affairs. [emphasizing technology-based networks

NASA Technical Reports Server (NTRS)

Wong, M. D.

1974-01-01

The role of technology in nontraditional higher education with particular emphasis on technology-based networks is analyzed nontraditional programs, institutions, and consortia are briefly reviewed. Nontraditional programs which utilize technology are studied. Technology-based networks are surveyed and analyzed with regard to kinds of students, learning locations, technology utilization, interinstitutional relationships, cost aspects, problems, and future outlook.

Constraints, Resources, and Interpretative Schema: Explorations of Teachers' Decisions to Utilize, Under-Utilize or Ignore Technology

ERIC Educational Resources Information Center

Pereira-Leon, Maura J.

2010-01-01

This three-year study examined how participation in a 10-month technology-enhanced professional development program (PDP) influenced K-12 teachers' decisions to utilize or ignore technology into teaching practices. Carspecken's (1996) qualitative research methodology of Critical Ethnography provided the theoretical and methodological framework to…

Utilization of Information and Communication Technologies as a Predictor of Educational Stress on Secondary School Students

ERIC Educational Resources Information Center

Eskicumali, Ahmet; Arslan, Serhat; Demirtas, Zeynep

2015-01-01

The purpose of this study is to examine the relationship between utilization of information and communication technologies and educational stress. Participants were 411 secondary school students. Educational Stress Scale and Utilization of Information and Communication Technologies Scale were used as measures. The relationships between students'…

Electric utility companies and geothermal power

NASA Technical Reports Server (NTRS)

Pivirotto, D. S.

1976-01-01

The requirements of the electric utility industry as the primary potential market for geothermal energy are analyzed, based on a series of structured interviews with utility companies and financial institution executives. The interviews were designed to determine what information and technologies would be required before utilities would make investment decisions in favor of geothermal energy, the time frame in which the information and technologies would have to be available, and the influence of the governmental politics. The paper describes the geothermal resources, electric utility industry, its structure, the forces influencing utility companies, and their relationship to geothermal energy. A strategy for federal stimulation of utility investment in geothermal energy is suggested. Possibilities are discussed for stimulating utility investment through financial incentives, amelioration of institutional barriers, and technological improvements.

Into the Eye

NASA Technical Reports Server (NTRS)

Ewers, Richard G.

2011-01-01

NASA's aeronautical research not only encompasses advancing aircraft technology and aviation safety for today and the future, but it also has a branch that deals with Airborne Science. This Airborne Science branch possesses unique airborne flight vehicles (manned and unmanned) whose sole purpose is to take scientists and their experiments anywhere in the world, into nearly any climatic condition, to gather the data they need for their research. This research spans such fields as; global warming, weather analysis, air and water pollution, mineral and archaeology search, earthquake damage and prediction, and yes, hurricanes. The data we obtain will hopefully, one day, allow us to better understand our planet, its natural forces and man's interaction with them.

The Impact of a Technology Coordinator's Belief System upon Using Technology to Create a Community's History

ERIC Educational Resources Information Center

Waring, Scott M.

2010-01-01

As it has been shown that teachers of social studies content are less likely than teachers of other content areas to utilize technology in their classroom, this study focuses on one instructional technology coordinators' beliefs towards technology, instruction, and students and how these beliefs impacted how technology was utilized during a…

Evaluation of a bifurcation drug-eluting stent system versus provisional T-stenting in a perfused synthetic coronary artery model.

PubMed

Rizik, David G; Klag, Joseph M; Tenaglia, Alan; Hatten, Thomas R; Barnhart, Marianne; Warnack, Boris

2009-12-01

Provisional T-stenting is a widely used strategy for the treatment of coronary artery bifurcation lesions. However, the use of conventional stents in this setting is limited by multiple factors; this includes technical considerations such as wire wrap when accessing the involved vessel, and stent overlap at or near the carina of the lesion. In addition, current slotted tube stent technology tends to be associated with gaps in the coverage of the side branch ostium, which may result in restenosis in that segment of the lesion. The Pathfinder device, now more commonly referred to as the Xience Side Branch Access System (Xience SBA) is a drug-eluting stent (DES) designed specifically to assist in the treatment of bifurcation lesions by allowing wire access into the side branch, irrespective of the treatment strategy to be employed. The Xience SBA drug-eluting stent was compared with the standard Vision coronary stent system using a provisional T-stenting strategy in a perfused synthetic model of the coronary vasculature with side branch angulations of 30 degrees , 50 degrees , 70 degrees , and 90 degrees . Stent delivery was performed under fluoroscopic guidance. Following the procedure, high-resolution 2D Faxitron imaging was used to evaluate deployment accuracy of the side branch stent relative to the main branch stent. Deployment of the Xience SBA was accomplished in the same total time as the standard stents in a provisional T-stenting approach (14.9 vs. 14.6 minutes). However, the time required to achieve stent deployment in the main branch was less with the Xience SBA (4.0 vs. 6.6 minutes), and as a result, total contrast usage (49.4 vs. 69.4 cm(3)) and fluoroscopy time (5.1 vs. 6.2 minutes) was lower. Additionally, the Xience SBA had a lower incidence of wire wrap (22% vs. 89%) and less distal protrusion of the side branch stent into the main branch (0.54 vs. 1.21 mm). Significant gaps in ostial side branch coverage were not seen in either group. The Xience Side Branch Access DES is a viable device for consistently accessing coronary bifurcation lesions; it allows for easy wire access into the side branch. This may assist the operator in overcoming those well-recognized limitations associated with use of standard one- or two-stent strategies. In this perfused synthetic coronary model, Xience SBA deployment required less contrast usage and shorter fluoroscopy times. Further testing of this device is warranted.

Understanding of the Dynamics of the Stirling Convertor Advanced by Structural Testing

NASA Technical Reports Server (NTRS)

Hughes, William O.

2003-01-01

The NASA Glenn Research Center, the U.S. Department of Energy, and the Stirling Technology Company (STC) are developing a highly efficient, long-life, free-piston Stirling convertor for use as an advanced spacecraft power system for future NASA missions, including deep-space and Mars surface applications. As part of this development, four structural dynamic test programs were recently performed on Stirling Technology Demonstration Convertors (TDC's) that were designed and built by STC under contract to the Department of Energy. This testing was performed in Glenn's Structural Dynamics Laboratory and Microgravity Emissions Laboratory. The first test program, in November and December 1999, demonstrated that the Stirling TDC could withstand the harsh random vibration experienced during a typical spacecraft launch and survive with no structural damage or functional power performance degradation. This was a critical step in enabling the use of Stirling convertors for future spacecraft power systems. The most severe test was a 12.3grms random vibration test, with test durations of 3 min per axis. The random vibration test levels were chosen to simulate, with margin, the maximum anticipated launch vibration conditions. The Microgravity Emissions Laboratory is typically used to measure the dynamics produced by operating space experiments and the resulting impact to the International Space Station's microgravity environment. For the second Stirling dynamic test program, performed in January 2001, the Microgravity Emissions Laboratory was used to characterize the structure-borne disturbances produced by the normal operation of a pair of Stirling convertors. The forces and moments produced by the normal operation of a Stirling system must be recognized and controlled, if necessary, so that other nearby spacecraft components, such as cameras, are not adversely affected. The Stirling convertor pair emitted relatively benign tonal forces at its operational frequency and associated harmonics. Therefore, Stirling power systems will not disturb spacecraft science experiments if minimal appropriate mounting efforts are made. The third test program, performed in February and May 2001, resulted in a modal characterization of a Stirling convertor. Since the deflection of the TDC piston rod, under vibration excitation, was of particular interest, the outer pressure shell was removed to allow access to the rod. Through this testing, the Stirling TDC's natural frequencies and modes were identified. This knowledge advanced our understanding of the successful 1999 vibration test and may be utilized to optimize the output power of future Stirling designs. The fourth test program, in April 2001, was conducted to characterize the structural response of a pair of Stirling convertors, as a function of their mounting interface stiffness. The test results provide guidance for the Stirling power package interface design. Properly designed, the interface may lead to increased structural capability and power performance beyond what was demonstrated in the successful 1999 vibration test. Dynamic testing performed to date at Glenn has shown that the Stirling convertors can withstand liftoff random vibration environments and meet "good neighbor" vibratory emission requirements. Furthermore, the future utilization of the information obtained during the tests will allow the corporation selected to be the Stirling system integrator to optimize their convertor and system interfaces designs. Glenn's Thermo-Mechanical Systems Branch provides Stirling technology expertise under a Space Act Agreement with the Department of Energy. Additional vibration testing by Glenn's Structural Systems Dynamics Branch is planned to continue to demonstrate the Stirling power system's vibration capability as its technology and flight system designs progress.

75 FR 63844 - National Institute of Environmental Health Sciences; Notice of Closed Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-18

... Health Sciences Special Emphasis Panel; Toxicology Training Using Systems- Based Technology. Date... Drive, Research Triangle Park, NC 27709. Contact Person: Leroy Worth, PhD, Scientific Review Officer, Scientific Review Branch, Division of Extramural Research and Training, Nat. Institute of Environmental...

THE USE OF TRACI FOR POLLUTION PREVENTION AND SUSTAINABLE DEVELOPMENT

EPA Science Inventory

The Use of TRACI for
Pollution Prevention and Sustainable Development

Jane C. Bare1 and Gregory A. Norris2
1) Systems Analysis Branch, Sustainable Technology Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, Cincinnati, O...

UOK 268 Cell Line for Hereditary Leiomyomatosis and Renal Cell Carcinoma | NCI Technology Transfer Center | TTC

Cancer.gov

The National Cancer Institute’s Urologic Oncology Branch seeks parties to co-develop the UOK 262 immortalized cell line as research tool to study aggressive hereditary leiomyomatosis and renal cell carcinoma (HLRCC)-associated recurring kidney cancer.

COMPUTERS FOR EDUCATION.

ERIC Educational Resources Information Center

LEBEDEV, P.D.

ON THE PREMISES THAT THE DEVELOPMENT OF PROGRAMED LEARNING BY RESEARCH TEAMS OF SUBJECT AND TECHNIQUE SPECIALISTS IS INDISPUTABLE, AND THAT THE EXPERIENCED TEACHER IN THE ROLE OF INDIVIDUAL TUTOR IS INDISPENSABLE, THE TECHNOLOGY TO SUPPORT PROGRAMED INSTRUCTION MUST BE ADVANCED. AUTOMATED DEVICES EMPLOYING SEQUENTIAL AND BRANCHING TECHNIQUES FOR…

EPA'S URBAN RESEARCH PROGRAM IN BMPS AND RESTORATION FOR WATER QUALITY IMPROVEMENT

EPA Science Inventory

The Urban Watershed Management Branch is responsible for developing, and demonstrating technologies and methods required to manage the risk to public health, property and the environment from wet weather flows (WWF) in urban watersheds. The activities are primarily aimed at rest...

EPA'S URBAN RESEARCH PROGRAM IN BMPS AND RESTORATION FOR WATER QUALITY IMPROVEMENT

EPA Science Inventory

The Urban Watershed Management Branch is responsible for developing, and demonstrating technologies and methods required to managing the risk to public health, property and the environment from wet weather flows (WWF) in urban watersheds. The activities are primarily aimed at re...

Effects of imbalanced currents on large-format LiFePO4/graphite batteries systems connected in parallel

NASA Astrophysics Data System (ADS)

Shi, Wei; Hu, Xiaosong; Jin, Chao; Jiang, Jiuchun; Zhang, Yanru; Yip, Tony

2016-05-01

With the development and popularization of electric vehicles, it is urgent and necessary to develop effective management and diagnosis technology for battery systems. In this work, we design a parallel battery model, according to equivalent circuits of parallel voltage and branch current, to study effects of imbalanced currents on parallel large-format LiFePO4/graphite battery systems. Taking a 60 Ah LiFePO4/graphite battery system manufactured by ATL (Amperex Technology Limited, China) as an example, causes of imbalanced currents in the parallel connection are analyzed using our model, and the associated effect mechanisms on long-term stability of each single battery are examined. Theoretical and experimental results show that continuously increasing imbalanced currents during cycling are mainly responsible for the capacity fade of LiFePO4/graphite parallel batteries. It is thus a good way to avoid fast performance fade of parallel battery systems by suppressing variations of branch currents.

Air Breathing Propulsion Controls and Diagnostics Research at NASA Glenn Under NASA Aeronautics Research Mission Programs

NASA Technical Reports Server (NTRS)

Garg, Sanjay

2014-01-01

The Intelligent Control and Autonomy Branch (ICA) at NASA (National Aeronautics and Space Administration) Glenn Research Center (GRC) in Cleveland, Ohio, is leading and participating in various projects in partnership with other organizations within GRC and across NASA, the U.S. aerospace industry, and academia to develop advanced controls and health management technologies that will help meet the goals of the NASA Aeronautics Research Mission Directorate (ARMD) Programs. These efforts are primarily under the various projects under the Fundamental Aeronautics Program (FAP) and the Aviation Safety Program (ASP). The ICA Branch is focused on advancing the state-of-the-art of aero-engine control and diagnostics technologies to help improve aviation safety, increase efficiency, and enable operation with reduced emissions. This paper describes the various ICA research efforts under the NASA Aeronautics Research Mission Programs with a summary of motivation, background, technical approach, and recent accomplishments for each of the research tasks.

A Historical Overview of Aeroelasticity Branch and Transonic Dynamics Tunnel Contributions to Rotorcraft Technology and Development

NASA Technical Reports Server (NTRS)

Yeager, William T., Jr.; Kvaternik, Raymond G.

2001-01-01

A historical account of the contributions of the Aeroelasticity Branch (AB) and the Langley Transonic Dynamics Tunnel (TDT) to rotorcraft technology and development since the tunnel's inception in 1960 is presented. The paper begins with a summary of the major characteristics of the TDT and a description of the unique capability offered by the TDT for testing aeroelastic models by virtue of its heavy gas test medium. This is followed by some remarks on the role played by scale models in the design and development of rotorcraft vehicles and a review of the basic scaling relationships important for designing and building dynamic aeroelastic models of rotorcraft vehicles for testing in the TDT. Chronological accounts of helicopter and tiltrotor research conducted in AB/TDT are then described in separate sections. Both experimental and analytical studies are reported and include a description of the various physical and mathematical models employed, the specific objectives of the investigations, and illustrative experimental and analytical results.

Air Breathing Propulsion Controls and Diagnostics Research at NASA Glenn Under NASA Aeronautics Research Mission Programs

NASA Technical Reports Server (NTRS)

Garg, Sanjay

2015-01-01

The Intelligent Control and Autonomy Branch (ICA) at NASA (National Aeronautics and Space Administration) Glenn Research Center (GRC) in Cleveland, Ohio, is leading and participating in various projects in partnership with other organizations within GRC and across NASA, the U.S. aerospace industry, and academia to develop advanced controls and health management technologies that will help meet the goals of the NASA Aeronautics Research Mission Directorate (ARMD) Programs. These efforts are primarily under the various projects under the Advanced Air Vehicles Program (AAVP), Airspace Operations and Safety Program (AOSP) and Transformative Aeronautics Concepts Program (TAC). The ICA Branch is focused on advancing the state-of-the-art of aero-engine control and diagnostics technologies to help improve aviation safety, increase efficiency, and enable operation with reduced emissions. This paper describes the various ICA research efforts under the NASA Aeronautics Research Mission Programs with a summary of motivation, background, technical approach, and recent accomplishments for each of the research tasks.

Atmospheric dry deposition in the vicinity of the Salton Sea, California - II: Measurement and effects of an enhanced evaporation system

USGS Publications Warehouse

Alonso, R.; Bytnerowicz, A.; Yee, J.L.; Boarman, W.I.

2005-01-01

A study was conducted to determine the effects of salt spray drift from pilot technologies employed by the US Bureau of Reclamation on deposition rates of various air-born ions. An enhanced evaporation system (EES) was tested in the field at the Salton Sea, California. Dry deposition of NO3-, NH4+, SO42-, Cl-, Ca2+, Na+, K+ and Se was assessed by using nylon filters and branches of natural vegetation exposed for one-week long periods. The simultaneous exposure of both lyophilized branches and branches of live plants offered important information highlighting the dynamics of deposited ions on vegetation. The EES significantly increased the deposition rates of Cl-, SO42- and Na+ in an area of about 639-1062 m surrounding the sprayers. Similarly, higher deposition of Ca 2+ and K+ caused by the EES was detected only when deposition was assessed using nylon filters or lyophilized branches. Deposition fluxes of NO3-, NH4+ and Se were not affected by the spraying system. Techniques for measuring dry deposition and calculating landscape-level depositional loads in non-forested systems need further development. ?? 2005 Elsevier Ltd. All rights reserved.

7 CFR 1709.111 - Limitations on use of grant funds.

Code of Federal Regulations, 2010 CFR

2010-01-01

... are unrelated to the grant project. (b) Unproven technology. Only projects that utilize technology with a proven operating history, and for which there is an established industry for the design... utilizing experimental, developmental, or prototype technologies or technology demonstrations are not...

Space Mechanisms Technology Workshop

NASA Technical Reports Server (NTRS)

Oswald, Fred B. (Editor)

2002-01-01

The Mechanical Components Branch at NASA Glenn Research Center hosted a workshop on Tuesday, May 14, 2002, to discuss space mechanisms technology. The theme for this workshop was 'Working in the Cold,' a focus on space mechanisms that must operate at low temperatures. We define 'cold' as below -60C (210 K), such as would be found near the equator of Mars. However, we are also concerned with much colder temperatures such as in permanently dark craters of the Moon (about 40 K).

Behavior analysis: the science of training.

PubMed

Farhoody, Parvene

2012-09-01

Behavior analysis is a data-driven science dedicated to understanding the mechanisms of behavior. Applied behavior analysis is a branch of this scientific field that systematically applies scientific principles to real-world problems in an effort to improve quality of life. The use of the behavioral technology provides a way to teach human and nonhuman animals more effectively and efficiently and offers those using this technology increased success in achieving behavioral goals. Copyright © 2012 Elsevier Inc. All rights reserved.

3D Modelling of Urban Terrain (Modelisation 3D de milieu urbain)

DTIC Science & Technology

2011-09-01

Panel • IST Information Systems Technology Panel • NMSG NATO Modelling and Simulation Group • SAS System Analysis and Studies Panel • SCI... Systems Concepts and Integration Panel • SET Sensors and Electronics Technology Panel These bodies are made up of national representatives as well as...of a part of it may be made for individual use only. The approval of the RTA Information Management Systems Branch is required for more than one

Assessment of US industry's technology trends and new technology requirements

NASA Technical Reports Server (NTRS)

1984-01-01

The utility and effectiveness of a novel approach (the Applications Development, or AD approach), intended to augment the efficiency of NASA's technology utilization (TU) through dissemination of NASA technologies and joint technology development efforts with U.S. industry is tested. The innovative AD approach consists of the following key elements: selection of NASA technologies appearing to have leading edge attributes; interaction with NASA researchers to assess the characteristics and quality of each selected technology; identification of industry's needs in the selected technology areas; structuring the selected technologies in terms of specifications and standards familiar to industry (industrial Spec. Sheets); identification and assessment of industry's interest in the specific selected NASA technologies, utilizing the greatly facilitated communication made possible by the availability of the industrial Spec. Sheets; and matching selected NASA technologies with the needs of selected industries.

A Framework for Examining the Utility of Technology-Enhanced Items

ERIC Educational Resources Information Center

Russell, Michael

2016-01-01

Interest in and use of technology-enhanced items has increased over the past decade. Given the additional time required to administer many technology-enhanced items and the increased expense required to develop them, it is important for testing programs to consider the utility of technology-enhanced items. The Technology-Enhanced Item Utility…

Large-scale educational telecommunications systems for the US: An analysis of educational needs and technological opportunities

NASA Technical Reports Server (NTRS)

Morgan, R. P.; Singh, J. P.; Rothenberg, D.; Robinson, B. E.

1975-01-01

The needs to be served, the subsectors in which the system might be used, the technology employed, and the prospects for future utilization of an educational telecommunications delivery system are described and analyzed. Educational subsectors are analyzed with emphasis on the current status and trends within each subsector. Issues which affect future development, and prospects for future use of media, technology, and large-scale electronic delivery within each subsector are included. Information on technology utilization is presented. Educational telecommunications services are identified and grouped into categories: public television and radio, instructional television, computer aided instruction, computer resource sharing, and information resource sharing. Technology based services, their current utilization, and factors which affect future development are stressed. The role of communications satellites in providing these services is discussed. Efforts to analyze and estimate future utilization of large-scale educational telecommunications are summarized. Factors which affect future utilization are identified. Conclusions are presented.

Role of technology in the cost of health care: is there a conflict between improved health delivery and lowering costs?

NASA Astrophysics Data System (ADS)

Young, Donald A.

1994-12-01

Technology is a major contributor to both medical price inflation and increased utilization and intensity. While attention is frequently focused on the cost of new technology, the continued diffusion and utilization of existing technologies may be a more important contributor to cost escalation. An annual analysis done by the Prospective Payment Assessment Commission has demonstrated that the added costs of quality of care enhancing new technology and scientific advances adds only about half of one percent each year to the cost furnishing inpatient hospital care to Medicare beneficiaries. In addition, many of the technologies included in this analysis are not entirely new, but have been available for a number of years. The utilization of these technologies, such as MRI, thrombolytic therapy, and implantable defibrillators, continues to increase each year, adding to the growth of spending. Other well established technologies, such as CAT scanning, diagnostic ultrasound, radiation therapy, and cardiac catheterization, also continue to diffuse, with annual increases in utilization.

Numerical simulation studies of nano-scale surface plasmon components: waveguides, splitters, and filters

NASA Astrophysics Data System (ADS)

Lin, Xian-Shi; Huang, Xu-Guang

2008-12-01

In this paper, we theoretically and numerically demonstrate a two-dimensional Metal-Dielectric-Metal (MDM) waveguide based on finite-difference time-domain simulation of the propagation characteristics of surface plasmon polaritons (SPPs). For practical applications, we propose a plasmonic Y-branch waveguide based on MDM structure for high integration. The simulation results show that the Y-branch waveguide proposed here makes optical splitter with large branching angle (~180 degree) come true. We also introduce a finite array of periodic tooth structure on one surface of the MDM waveguide which is in a similar way as FBGs or Bragg reflectors, potentially as filters for WDM applications. Our results show that the novel structure not only can realize filtering function of wavelength with a high transmittance over 92%, but also with an ultra-compact size in the length of a few hundred nanometers, in comparison with other grating-like SPPs filters. The MDM waveguide splitters and filters could be utilized to achieve ultra-compact photonic filtering devices for high integration in SPPs-based flat metallic surfaces.

Linkage and Branch Analysis of High-Mannose Oligosaccharides Using Closed-Ring Labeling of 8-Aminopyrene-1,3,6-Trisulfonate and P-Aminobenzoic Ethyl Ester and Negative Ion Trap Mass Spectrometry

NASA Astrophysics Data System (ADS)

Chen, Shu-Ting; Her, Guor-Rong

2012-08-01

A strategy based on negative ion electrospray ionization tandem mass spectrometry and closed-ring labeling with both 8-aminopyrene-1,3,6-trisulfonate (APTS) and p-aminobenzoic acid ethyl ester (ABEE) was developed for linkage and branch determination of high-mannose oligosaccharides. X-type cross-ring fragment ions obtained from APTS-labeled oligosaccharides by charge remote fragmentation provided information on linkages near the non-reducing terminus. In contrast, A-type cross-ring fragment ions observed from ABEE-labeled oligosaccharides yielded information on linkages near the reducing terminus. This complementary information provided by APTS- and ABEE-labeled oligosaccharides was utilized to delineate the structures of the high-mannose oligosaccharides. As a demonstration of this approach, the linkages and branches of high-mannose oligosaccharides Man5GlcNAc2, Man6GlcNAc2, Man8GlcNAc2, and Man9GlcNAc2 cleaved from the ribonuclease B were assigned from MS2 spectra of ABEE- and APTS-labeled derivatives.

One-pot synthesis of gold nanostars using plant polyphenols for cancer photoacoustic imaging and photothermal therapy

NASA Astrophysics Data System (ADS)

Zhang, Xiao-Long; Zheng, Cheng; Zhang, Yun; Yang, Huang-Hao; Liu, Xiaolong; Liu, Jingfeng

2016-07-01

Branched plasmonic nanostructures have been found to exhibit strong enhancement of the electromagnetic field surrounding their multi-branched petals. This feature endows them with improved performance in catalysis, surface-enhanced Raman scattering, photoacoustic imaging, and photothermal therapy. Albeit several synthesis techniques have been developed, the precisely controlled growth of highly branched nanostructures with a one-pot surfactant-free procedure is still challenging. Herein, we present a simple seedless route to synthesize gold nanostars (AuNSs) using a natural plant polyphenol, gallic acid (GA), as a reducing and stabilizing agent. The size and shape of AuNSs can be tuned by simply adjusting the amount of added GA. Under the optimum condition, the as-prepared AuNSs with diameters about 100 nm exhibit strong near-infrared absorption, good photothermal efficiency, and high biocompatibility. We demonstrate that AuNSs can be utilized for simultaneous photoacoustic imaging and photothermal therapy in living cancer cells. This study highlights facile synthesized AuNSs could serve as a promising platform for cancer diagnosis and therapy.

Pollen limitation of reproductive effort in willows.

PubMed

Fox, John F

1992-05-01

Pollen limitation of seed set differs from resource limitation in its implications for the evolution of floral traits. Willow flowers attract insects, but also abundantly produce wind-dispersed pollen. I demonstrated pollen limitation in single branches bearing 2-4 inflorescences (catkins) in a field experiment with five species by artificially increasing or decreasing the pollen load. Because the responses by single branches might be explained by diversion of resources to better-pollinated branches within a plant, a second experiment with one species tested both pollen limitation of whole plants and the autonomy of catkins. Seed set of single willow catkins is unaffected by experimental alterations of seed set in other catkins on the same plant. Hand-pollination of single catkins and of whole plants increased seed set to the same degree, suggesting there is little or no competition for resources between catkins only 5-10 cm apart. Thus, seed set in willows appears to be pollen limited, favoring insect pollination and the evolution of entomophilous traits. The data support previous views that willows have a dual pollination system utilizing wind and insects.

3D Bio-Printing Review

NASA Astrophysics Data System (ADS)

Du, Xianbin

2018-01-01

Ultimate goal of tissue engineering is to replace pathological or necrotic body tissue or organ by artificial tissue or organ and tissue engineering is a very promising research field. 3D bio-printing is a kind of emerging technologies and a branch of tissue engineering. It has made significant progress in the past decade. 3D bio-printing can realize tissue and organ construction in vitro and has wide application in basic research and pharmacy. This paper is to make an analysis and review on 3D bio-printing from the perspectives of bioink, printing technology and technology application.

14 CFR 1204.401 - Policy.

Code of Federal Regulations, 2012 CFR

2012-01-01

... Business Policy § 1204.401 Policy. (a) It is the policy of NASA to enable small business concerns (including small women-owned businesses), Historically Black Colleges and Universities, and other minority... the specific branch of science or technology required for the successful conduct of the work. It is in...

14 CFR 1204.401 - Policy.

Code of Federal Regulations, 2013 CFR

2013-01-01

... Business Policy § 1204.401 Policy. (a) It is the policy of NASA to enable small business concerns (including small women-owned businesses), Historically Black Colleges and Universities, and other minority... the specific branch of science or technology required for the successful conduct of the work. It is in...

Introducing Extension/Outreach Education in Tajikistan

ERIC Educational Resources Information Center

Albrecht, Julie A.; Prochaska-Cue, Kathleen; Rockwell, S. Kay; Pulatov, Pulat A.

2010-01-01

University of Nebraska-Lincoln (UNL) and Khujand branch of the Technological University of Tajikistan (KbTUT) collaborated on the development of an Extension/outreach program in Tajikistan. Fifteen KbTUT administrators, faculty, and students from textiles, food science, and management engaged in training sessions at UNL on entrepreneurship, adult…

Rho GTPase Involvement in Breast Cancer Migration and Invasion

DTIC Science & Technology

2007-03-01

knockdown was established for the kinase and phosphatase genes using branched DNA ( bDNA ) technology (Genospectra) in collaboration with Dharmacon RNA...knockdown value of ង% and of these, 80 genes were previously undetectable by bDNA in baseline detection analysis, reflecting the limited sensitivity of

Tribology. LC Science Tracer Bullet.

ERIC Educational Resources Information Center

Havas, George D., Comp.

Tribology is the science and technology of interacting surfaces in relative motion. It incorporates a number of scientific fields, including friction, wear, lubrication, materials science, and various branches of surface physics and surface chemistry. Tribology forms a vital part of engineering science. The interacting surfaces may be on machinery…

Validation of NASA Thermal Ice Protection Computer Codes Part 2 - LEWICE/Thermal

DOT National Transportation Integrated Search

1996-01-01

The Icing Technology Branch at NASA Lewis has been involved in an effort to validate two thermal ice protection codes developed at the NASA Lewis Research Center: LEWICE/Thermal 1 (electrothermal de-icing and anti-icing), and ANTICE 2 (hot gas and el...

14 CFR 1204.401 - Policy.

Code of Federal Regulations, 2011 CFR

2011-01-01

... (including small women-owned businesses), Historically Black Colleges and Universities, and other minority... the specific branch of science or technology required for the successful conduct of the work. It is in... development work for NASA be expanded and that there be an increase in the extent of participation in such...

T Cell Receptors that Recognize the Tyrosinase Tumor Antigen | NCI Technology Transfer Center | TTC

Cancer.gov

The National Cancer Institute, Surgery Branch, Tumor Immunology Section, is seeking statements of capability or interest from parties interested in collaborative research to further develop, evaluate, or commercialize T Cells Attacking Cancer: T Cell Receptors that Recognize the Tyrosinase Tumor Antigen

ETO - ENGINEERING TRADE-OFFS (SYSTEMS ANALYSIS BRANCH, SUSTAINABLE TECHNOLOGY DIVISION, NRMRL)

EPA Science Inventory

The ETO - Engineering Trade-Offs program is to develop a new, integrated decision-making approach to compare/contrast two or more states of being: a benchmark and an alternative, a change in a production process, alternative processes or products. ETO highlights the difference in...

Strange but True: The Physics of Glass, Gels and Jellies Is All Related through Rheology

ERIC Educational Resources Information Center

Sarker, Dipak K.

2017-01-01

Rheology is an enormously far-reaching branch of physics (or physical chemistry) and has a number of different guises. Rheological descriptions define fluids, semi-solids and conventional solids, and the application of this science defines the performance and utility of materials and substances as diverse as foods (such as yogurt and marmalade),…

Spinoff 1978: An Annual Report.

ERIC Educational Resources Information Center

National Aeronautics and Space Administration, Washington, DC.

This abstract is the annual report of NASA's Technology Utilization Program, which is charged with promoting and stimulating the practical application of government-sponsored aerospace technology. The report is organized in three sections: (1) aerospace aims; (2) technology twice used; and (3) technology utilization. Section 1 outlines NASA's…

Technology Utilization Conference Series, volume 1

NASA Technical Reports Server (NTRS)

1975-01-01

The design, development, and results of a series of technology utilization conferences are presented. The conference series represents the development of a viable and successful means of encouraging the transfer of technology to the minority business community.

Mathematical Modeling and Optimization of Gaseous Fuel Processing as a Basic Technology for Long-distance Energy Transportation: The Use of Methanol and Dimethyl Ether as Energy Carriers.

NASA Astrophysics Data System (ADS)

Tyurina, E. A.; Mednikov, A. S.

2017-11-01

The paper presents the results of studies on the perspective technologies of natural gas conversion to synthetic liquid fuel (SLF) at energy-technology installations for combined production of SLF and electricity based on their detailed mathematical models. The technologies of the long-distance transport of energy of natural gas from large fields to final consumers are compared in terms of their efficiency. This work was carried out at Melentiev Energy Systems Institute of Siberian Branch of the Russian Academy of Sciences and supported by Russian Science Foundation via grant No 16-19-10174

Biomass estimation for Virginia pine trees and stands

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

Madgwick, H.A.I.

1980-03-01

Stands of Virginia Pine (Pinus virginiana Mill.) occur on much abandoned farm land in the Appalachian Mountains and Piedmont of Virginia. Natural stands are an important source of pulpwood, and these are being augmented by plantations. Increased intensity of utilization necessitates the estimation of component weights of the trees. Data from 501 trees from 10 stands were used to develop equations for estimating dry weight of stem wood, stem bark, total stem 1-year-old needles, total needles, live branches, and total branches of individual trees. Stand weight of stems was closely related to stand basal area and mean height. Stand live-branchmore » weight varies inversely with stocking. Weight of 1-year-old foliage on the stands increased with stocking and site index. 13 references.« less

Probing the molecular design of hyper-branched aryl polyesters towards lubricant applications

DOE PAGES

Robinson, Joshua W.; Zhou, Yan; Bhattacharya, Priyanka; ...

2016-01-05

We report novel polymeric materials that may be used as viscosity index improvers (VII) for lubricant applications. Our efforts included probing the comb-burst hyper-branched aryl polyester architecture for beneficial viscosity and friction behavior when utilized as an additive in a group I oil. The monomer was designed as to undergo polymerization via polycondensation within the architectural construct (AB2), typical of hyperbranched polymers. The monomer design was comprised of aliphatic arms (12 or 16 methylenes) to provide the necessary lipophilicity to achieve solubility in a non-polar medium. Once polymerized, via catalyst and heat, the surface alcohols were functionalized with fatty acidsmore » (lauric and palmitic). Controlling the aliphatic nature of the internal arms and peripheral end-groups provided four unique flexible polymer designs. Changing the reaction time and concentration provided opportunities to investigate the influence of molecular weight and branching density on oil-solubility, viscosity, and friction. Oil-solubility was found to decrease with fewer internal carbons, but the number of internal carbons appears to have little influence on the bulk solution viscosity. Increased branching and degree of polymerization, and thus molecular weight, were found to reduce the solubility of these systems in the base oil. At concentrations of 2 wt % in a group I base oil, these polymer additives demonstrated improved viscosity index and reduced friction coefficient, validating the basic approach.« less

One-stop shop for 3-dimensional anatomy of hepatic vasculature and bile duct with special reference to biliary image reconstruction.

PubMed

Enkhbold, Ch; Shimada, M; Utsunomiya, T; Ishibashi, H; Yamada, S; Kanamoto, M; Arakawa, Y; Ikemoto, Z; Morine, E; Imura, S

2013-01-01

Three-dimensional CT has become an essential tool for successful hepatic surgery. Up to now, efforts have been made to simultaneously visualize hepatic vasculature and bile ducts. Herein, we introduce a new one-stop shop approach to hepatic 3D-anatomy, using a standard enhanced MDCT alone. A 3D-reconstruction of hepatic vasculature was made using data from contrast enhanced MDCT and SYNAPSE VINCENT software. We identified bile ducts from axial 2D image, and then reconstructed the 3D image. Both hepatic vasculature and bile duct images were integrated into a single image and it was compared with the 3D image, utilized with MRCP or DIC-CT. The first branches of both the right and left hepatic ducts were hand-traced and visualized for all 100 cases. The second branches of these ducts were visualized in 69 cases, and only the right second branch was recognized in 52 cases. Anomalous variations of bile ducts, such as posterior branch joining into common hepatic duct, were recognized in 12 cases. These biliary tract variations were all confirmed by MRCP or DIC-CT. Our new one-stop shop approach using the 3D imaging technique might contribute to successful hepatectomy as well as reduce medical costs and radiation exposure by omission of MRCP and DIC-CT.

Probing the molecular design of hyper-branched aryl polyesters towards lubricant applications

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

Robinson, Joshua W.; Zhou, Yan; Bhattacharya, Priyanka

We report novel polymeric materials that may be used as viscosity index improvers (VII) for lubricant applications. Our efforts included probing the comb-burst hyper-branched aryl polyester architecture for beneficial viscosity and friction behavior when utilized as an additive in a group I oil. The monomer was designed as to undergo polymerization via polycondensation within the architectural construct (AB2), typical of hyperbranched polymers. The monomer design was comprised of aliphatic arms (12 or 16 methylenes) to provide the necessary lipophilicity to achieve solubility in a non-polar medium. Once polymerized, via catalyst and heat, the surface alcohols were functionalized with fatty acidsmore » (lauric and palmitic). Controlling the aliphatic nature of the internal arms and peripheral end-groups provided four unique flexible polymer designs. Changing the reaction time and concentration provided opportunities to investigate the influence of molecular weight and branching density on oil-solubility, viscosity, and friction. Oil-solubility was found to decrease with fewer internal carbons, but the number of internal carbons appears to have little influence on the bulk solution viscosity. Increased branching and degree of polymerization, and thus molecular weight, were found to reduce the solubility of these systems in the base oil. At concentrations of 2 wt % in a group I base oil, these polymer additives demonstrated improved viscosity index and reduced friction coefficient, validating the basic approach.« less

Artificial intelligence in medicine.

PubMed

Hamet, Pavel; Tremblay, Johanne

2017-04-01

Artificial Intelligence (AI) is a general term that implies the use of a computer to model intelligent behavior with minimal human intervention. AI is generally accepted as having started with the invention of robots. The term derives from the Czech word robota, meaning biosynthetic machines used as forced labor. In this field, Leonardo Da Vinci's lasting heritage is today's burgeoning use of robotic-assisted surgery, named after him, for complex urologic and gynecologic procedures. Da Vinci's sketchbooks of robots helped set the stage for this innovation. AI, described as the science and engineering of making intelligent machines, was officially born in 1956. The term is applicable to a broad range of items in medicine such as robotics, medical diagnosis, medical statistics, and human biology-up to and including today's "omics". AI in medicine, which is the focus of this review, has two main branches: virtual and physical. The virtual branch includes informatics approaches from deep learning information management to control of health management systems, including electronic health records, and active guidance of physicians in their treatment decisions. The physical branch is best represented by robots used to assist the elderly patient or the attending surgeon. Also embodied in this branch are targeted nanorobots, a unique new drug delivery system. The societal and ethical complexities of these applications require further reflection, proof of their medical utility, economic value, and development of interdisciplinary strategies for their wider application. Copyright © 2017. Published by Elsevier Inc.

Analysis on the Efficiency of Science and Technology Resources Utilization in the Provinces along the Belt and Road

NASA Astrophysics Data System (ADS)

Qiong, Wu; Yali, Wang

2018-05-01

With the proposal of the "Belt and Road Initiatives for Science and Technology Innovation" in May 2017, science and technology resources show great value in many areas along the Belt and Road. It is necessary to correctly describe the status and analyze utilization efficiency of science and technology resources in a region, then scientific suggestions for improvement can be put forward.This article choose Guangdong province and Jiangsu province as comparative objects,which are important areas along the Belt and Road.After collecting data from 2002 to 2013, this paper analyze the efficiency of input and output in sci-tech in these two provinces by using Data Envelopment Analysis. Problems in utilization of science and technology resources and suggestions are put forward in this paper. This article aims to offer great reference for improving the utilization of science and technology resources along the Belt and Road.

A Comparison of Undergraduate Faculty and Millennial Students regarding the Utilization of Weblog and Podcast Technology in a Teacher Education Department

ERIC Educational Resources Information Center

Ennis, Leslie Sturdivant; Gambrell, Elizabeth Anne

2010-01-01

The main objective of the study was to compare the utilization of weblog and podcast technology by undergraduate university faculty and Millennial college students. The study was conducted to test the hypothesis, formed from existing literature, that there might be a difference in the utilization of weblog and podcast technology between faculty…

Conceptual and empirical themes regarding the design of technology transfer programs : a review of wood utilization research in the United States

Treesearch

Paul V. Ellefson; Michael A. Kilgore; Kenneth E. Skog; Christopher D. Risbrudt

2011-01-01

Transfer of technologies produced by research is critical to innovation within all organizations. The intent of this paper is to take stock of the conceptual underpinnings of technology transfer processes as they relate to wood utilization research and to identify conditions that promote the successful transfer of research results. Conceptually, research utilization...

COMPASS: A general purpose computer aided scheduling tool

NASA Technical Reports Server (NTRS)

Mcmahon, Mary Beth; Fox, Barry; Culbert, Chris

1991-01-01

COMPASS is a generic scheduling system developed by McDonnell Douglas under the direction of the Software Technology Branch at JSC. COMPASS is intended to illustrate the latest advances in scheduling technology and provide a basis from which custom scheduling systems can be built. COMPASS was written in Ada to promote readability and to conform to potential NASA Space Station Freedom standards. COMPASS has some unique characteristics that distinguishes it from commercial products. These characteristics are discussed and used to illustrate some differences between scheduling tools.

Spatial Data Management System (SDMS)

NASA Technical Reports Server (NTRS)

Hutchison, Mark W.

1994-01-01

The Spatial Data Management System (SDMS) is a testbed for retrieval and display of spatially related material. SDMS permits the linkage of large graphical display objects with detail displays and explanations of its smaller components. SDMS combines UNIX workstations, MIT's X Window system, TCP/IP and WAIS information retrieval technology to prototype a means of associating aggregate data linked via spatial orientation. SDMS capitalizes upon and extends previous accomplishments of the Software Technology Branch in the area of Virtual Reality and Automated Library Systems.

COMPASS: An Ada based scheduler

NASA Technical Reports Server (NTRS)

Mcmahon, Mary Beth; Culbert, Chris

1992-01-01

COMPASS is a generic scheduling system developed by McDonnell Douglas and funded by the Software Technology Branch of NASA Johnson Space Center. The motivation behind COMPASS is to illustrate scheduling technology and provide a basis from which custom scheduling systems can be built. COMPASS was written in Ada to promote readability and to conform to DOD standards. COMPASS has some unique characteristics that distinguishes it from commercial products. This paper discusses these characteristics and uses them to illustrate some differences between scheduling tools.

Importance of Branched-Chain Amino Acid Utilization in Francisella Intracellular Adaptation

PubMed Central

Gesbert, Gael; Ramond, Elodie; Tros, Fabiola; Dairou, Julien; Frapy, Eric; Barel, Monique

2014-01-01

Intracellular bacterial pathogens have adapted their metabolism to optimally utilize the nutrients available in infected host cells. We recently reported the identification of an asparagine transporter required specifically for cytosolic multiplication of Francisella. In the present work, we characterized a new member of the major super family (MSF) of transporters, involved in isoleucine uptake. We show that this transporter (here designated IleP) plays a critical role in intracellular metabolic adaptation of Francisella. Inactivation of IleP severely impaired intracellular F. tularensis subsp. novicida multiplication in all cell types tested and reduced bacterial virulence in the mouse model. To further establish the importance of the ileP gene in F. tularensis pathogenesis, we constructed a chromosomal deletion mutant of ileP (ΔFTL_1803) in the F. tularensis subsp. holarctica live vaccine strain (LVS). Inactivation of IleP in the F. tularensis LVS provoked comparable intracellular growth defects, confirming the critical role of this transporter in isoleucine uptake. The data presented establish, for the first time, the importance of isoleucine utilization for efficient phagosomal escape and cytosolic multiplication of Francisella and suggest that virulent F. tularensis subspecies have lost their branched-chain amino acid biosynthetic pathways and rely exclusively on dedicated uptake systems. This loss of function is likely to reflect an evolution toward a predominantly intracellular life style of the pathogen. Amino acid transporters should be thus considered major players in the adaptation of intracellular pathogens. PMID:25332124

Sensing the Tension

NASA Technical Reports Server (NTRS)

2003-01-01

Spanning over 4 decades, NASA's bolt tension monitoring technology has benefited automakers, airplane builders, and other major manufacturers that rely on the devices to evaluate the performance of computerized torque wrenches and other assembly line mechanisms. In recent years, the advancement of ultrasonic sensors has drastically eased this process for users, ensuring that proper tension and torque are being applied to bolts and fasteners, with less time needed for data analysis. Langley Research Center s Nondestructive Evaluation Branch is one of the latest NASA programs to incorporate ultrasonic sensors within a bolt tension measurement instrument. As a multi-disciplined research group focused on spacecraft and aerospace transportation safety, one of the branch s many commitments includes transferring problem solutions to industry. In 1998, the branch carried out this obligation in a licensing agreement with Micro Control, Inc., of West Bloomfield, Michigan. Micro Control, an automotive inspection company, obtained the licenses to two Langley patents to provide an improved-but-inexpensive means of ultrasonic tension measurement.

An integrated data envelopment analysis-artificial neural network approach for benchmarking of bank branches

NASA Astrophysics Data System (ADS)

Shokrollahpour, Elsa; Hosseinzadeh Lotfi, Farhad; Zandieh, Mostafa

2016-06-01

Efficiency and quality of services are crucial to today's banking industries. The competition in this section has become increasingly intense, as a result of fast improvements in Technology. Therefore, performance analysis of the banking sectors attracts more attention these days. Even though data envelopment analysis (DEA) is a pioneer approach in the literature as of an efficiency measurement tool and finding benchmarks, it is on the other hand unable to demonstrate the possible future benchmarks. The drawback to it could be that the benchmarks it provides us with, may still be less efficient compared to the more advanced future benchmarks. To cover for this weakness, artificial neural network is integrated with DEA in this paper to calculate the relative efficiency and more reliable benchmarks of one of the Iranian commercial bank branches. Therefore, each branch could have a strategy to improve the efficiency and eliminate the cause of inefficiencies based on a 5-year time forecast.

FY02 Final Report on Phytoremediation of Chlorinated Ethenes in Southern Sector Sediments of the Savannah River Site

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

Brigmon, R..L.

This final report details the operations and results of a 3-year Seepline Phytoremediation Project performed adjacent to Tims Branch, which is located in the Southern Sector of the Savannah River Site (SRS) A/M Area. Phytoremediation is a process where interactions between vegetation, associated microorganisms, and the host substrate combine to effectively degrade contaminated soils, sediments, and groundwater. Phytoremediation is a rapidly developing technology that shows promise for the effective and safe cleanup of certain hazardous wastes. It has the potential to remediate numerous volatile organic compounds (VOCs). Extensive characterization work has demonstrated that two VOCs, tetrachloroethylene (PCE) and trichloroethylene (TCE)more » are the major components of the VOC-contaminated groundwater that is migrating through the Southern Sector and Tims Branch seepline area (WSRC, 1999). The PCE and TCE are chlorinated ethenes (CE), and have been detected in seepline soils and ground water adjacent to the ecologically-sensitive Tims Branch seepline area.« less

Design, construction and load testing of the bridge on Arnault Branch, Washington County, Missouri using innovative technologies.

DOT National Transportation Integrated Search

2010-02-01

The superstructure and instrumentation designs of a three-span bridge are presented in this report. The three spans include a : precast box-girder bridge, a precast deck on steel girder and a precast deck on concrete girder. They were designed to com...

14 CFR § 1204.401 - Policy.

Code of Federal Regulations, 2014 CFR

2014-01-01

... Business Policy § 1204.401 Policy. (a) It is the policy of NASA to enable small business concerns (including small women-owned businesses), Historically Black Colleges and Universities, and other minority... the specific branch of science or technology required for the successful conduct of the work. It is in...

TOWARD EFFECTIVE URBAN BMPS FOR STORMWATER TREATMENT: WET PONDS VS. CONSTRUCTED WETLAND-TYPE RETENTION/DETENTION STRUCTURES

EPA Science Inventory

A goal of the Urban Watershed Management Branch of USEPA's NRMRL, Edison, NJ is to develop and demonstrate technologies and methods to manage the ecological risks posed by stormwate runoff from highly developed watersheds. This study, in particular, uses extant data and controlle...

Software for Aerospace Education. A Bibliography (Second Edition).

ERIC Educational Resources Information Center

Vogt, Gregory L.; And Others

The software described in this bibliography represents programs made available to the National Aeronautics and Space Administration (NASA) Educational Technology Branch by software producers and vendors. More than 200 computer software programs and 12 laser videodisk programs are reviewed in terms of title, copyright, subject, application, type,…

ENGINEERING TRADE-OFFS (ETO) INITIATIVE FOR REDUCTION IN MERCURY USE (SYSTEMS ANALYSIS BRANCH, SUSTAINABLE TECHNOLOGY DIVISION,NRMRL)

EPA Science Inventory

The demand for mercury in the United States is still growing or declining only slightly in a number of industrial sectors. These include electric lighting, electronic equipment, wiring devices and switches, measurement and control instruments, dental equipment and supplies, labor...

RESEARCH AREA -- MUNICIPAL WASTE COMBUSTION (AIR POLLUTION TECHNOLOGY BRANCH, AIR POLLUTION PREVENTION AND CONTROL DIVISION, NRMRL)

EPA Science Inventory

The municipal waste combustion (MWC) program supports the development of revised rules for air pollutant emissions from the MWC source category. Basic research is performed on MWC pollutant formation and control mechanisms for acid gas, trace organic, and trace metal emissions. T...

Space directorate research and technology accomplishments for fiscal year 1987

NASA Technical Reports Server (NTRS)

Avery, Don E.

1988-01-01

The major accomplishments and test highlights of the Space Directorate of NASA Langley Research Center for FY87 are presented. Accomplishments and test highlights are listed by Division and Branch. This information should be useful in coordinating programs with government organizations, universities, and industry in areas of mutual interest.

Cataloging as a Customer Service: Applying Knowledge to Technology Tools.

ERIC Educational Resources Information Center

Konovalov, Yuri

1999-01-01

Discusses the increase in significance and importance of cataloging and authority control in the online environment of libraries to help improve both precision and recall of searches. Highlights include the inadequacies of keyword searching; corporate library experiences; and library management with foreign library branches and foreign language…

U.S. EPA'S URBAN WATERSHED RESEARCH PROGRAM IN BMPS AND RESTORATION FOR WATER QUALITY MANAGEMENT

EPA Science Inventory

The U.S. EPA's Urban Watershed Management Branch is responsible for developing and demonstrating technologies and methods required managing the risk to public health, property and the environment from wet weather flows (WWF) in urban watersheds. The activities are primarily aimed...

Novel Kinase Inhibitors Targeting the PH Domain of AKT for Preventing and Treating Cancer | NCI Technology Transfer Center | TTC

Cancer.gov

The National Cancer Institute's Medical Oncology Branch is seeking statements of capability or interest from parties interested in licensing and co-development collaborative research to further develop, evaluate, or commercialize novel kinase inhibitors targeting the PH domain of AKT.

Cross-Border Partnerships in Higher Education: Strategies and Issues. International Studies in Higher Education

ERIC Educational Resources Information Center

Sakamoto, Robin, Ed.; Chapman, David, Ed.

2012-01-01

"Cross-border Partnerships in Higher Education" looks beyond student and faculty exchanges to examine the myriad ways international colleges and universities work together as institutions. These partnerships have involved the creation of branch campuses, joint research and technology initiatives, collaboration in strengthening…

Space directorate research and technology accomplishments for FY 1988

NASA Technical Reports Server (NTRS)

Avery, Don E. (Compiler)

1989-01-01

The major accomplishments and test highlights for FY 1988 that occurred in the Space Dirctorate are given. Accomplishments and test highlights are presented by Division and Branch. The presented information will be useful in program coordination with government organizations, universities, and industry in areas of mutual interest.

LCACCESS: MAKING LIFE CYCLE DATA AVAILABLE VIA THE INTERNET(SYSTEMS ANLAYSIS BRANCH, SUSTAINABLE TECHNOLOGY DIVISION, NRMRL)

EPA Science Inventory

The lack of readily available, quality environmental life cycle inventory (LCI) data is often a barrier to manufacturers, among others, for incorporating life cycle considerations into their decision-making process. While much progress has been made on standardizing and improving...

RESEARCH AREA -- POLLUTION PREVENTION (P2) (EMISSIONS CHARACTERIZATION AND PREVENTION BRANCH, AIR POLLUTION PREVENTION AND CONTROL DIVISION, NRMRL)

EPA Science Inventory

The objective of this program is to develop and demonstrate technologies, processes, and products that will prevent the formation of hazardous emission or criteria pollutants. The pollution prevention alternatives are often no more costly (and sometimes even less) than tradition...

Postdoctoral Fellow | Center for Cancer Research

Cancer.gov

A postdoctoral research position is available in the laboratory of Dr. Natasha Caplen in the Genetics Branch, National Cancer Institute, Center for Cancer Research. Dr. Caplen’s Laboratory conducts multidisciplinary and interdisciplinary research that uses RNAi and other DNA or RNA-based functional genomic technologies to interrogate specific aspects of the genetic,

76 FR 79754 - Twelfth Meeting: RTCA Special Committee 220, Automatic Flight Guidance and Control

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-22

... technologies Administrative items (meeting schedule, location, and next meeting agenda) Any other business... 2 status--progress, issues and plan Review of WG 3 status--progress, issues and plans Review action.... Issued in Washington, DC, on December 15, 2011. Robert L. Bostiga, Manager, Business Operations Branch...

Adapt for Outreach: Taking Technology on the Road

ERIC Educational Resources Information Center

Hyatt, Jason; Craig, Angela

2009-01-01

Outreach occurs systemwide at Public Library of Charlotte & Mecklenburg County (PLCMC). All branches are involved in reaching their surrounding neighborhoods and patrons. Under the guidance of the outreach manager, the outreach department provides support for these efforts and also offers focused programming via 12 staff members. The department is…

75 FR 62363 - Agency Information Collection Activities: Proposed Collection; Comment Request-Supplemental...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-08

... other forms of information technology. Comments may be sent to: Andrea Gold, Chief, Retailer Management... INFORMATION CONTACT: Andrea Gold, Chief, Retailer Management and Issuance Branch at (703) 305-2456... Reconciliation. Form Number: FNS-46. OMB Number: 0584-0080. Expiration Date: February 28, 2011. Type of Request...

Aerospace Applications of Optimization under Uncertainty

NASA Technical Reports Server (NTRS)

Padula, Sharon; Gumbert, Clyde; Li, Wu

2003-01-01

The Multidisciplinary Optimization (MDO) Branch at NASA Langley Research Center develops new methods and investigates opportunities for applying optimization to aerospace vehicle design. This paper describes MDO Branch experiences with three applications of optimization under uncertainty: (1) improved impact dynamics for airframes, (2) transonic airfoil optimization for low drag, and (3) coupled aerodynamic/structures optimization of a 3-D wing. For each case, a brief overview of the problem and references to previous publications are provided. The three cases are aerospace examples of the challenges and opportunities presented by optimization under uncertainty. The present paper will illustrate a variety of needs for this technology, summarize promising methods, and uncover fruitful areas for new research.