Sample records for identify design requirements

  1. A Stream lined Approach for the Payload Customer in Identifying Payload Design Requirements

    NASA Technical Reports Server (NTRS)

    Miller, Ladonna J.; Schneider, Walter F.; Johnson, Dexer E.; Roe, Lesa B.

    2001-01-01

    NASA payload developers from across various disciplines were asked to identify areas where process changes would simplify their task of developing and flying flight hardware. Responses to this query included a central location for consistent hardware design requirements for middeck payloads. The multidisciplinary team assigned to review the numerous payload interface design documents is assessing the Space Shuttle middeck, the SPACEHAB Inc. locker, as well as the MultiPurpose Logistics Module (MPLM) and EXpedite the PRocessing of Experiments to Space Station (EXPRESS) rack design requirements for the payloads. They are comparing the multiple carriers and platform requirements and developing a matrix which illustrates the individual requirements, and where possible, the envelope that encompasses all of the possibilities. The matrix will be expanded to form an overall envelope that the payload developers will have the option to utilize when designing their payload's hardware. This will optimize the flexibility for payload hardware and ancillary items to be manifested on multiple carriers and platforms with minimal impact to the payload developer.

  2. Toward identifying specification requirements for digital bone-anchored prosthesis design incorporating substructure fabrication: a pilot study.

    PubMed

    Eggbeer, Dominic; Bibb, Richard; Evans, Peter

    2006-01-01

    This paper is the first in a series that aims to identify the specification requirements for advanced digital technologies that may be used to design and fabricate complex, soft tissue facial prostheses. Following a review of previously reported techniques, appropriate and currently available technologies were selected and applied in a pilot study. This study uses a range of optical surface scanning, computerized tomography, computer-aided design, and rapid prototyping technologies to capture, design, and fabricate a bone-anchored auricular prosthesis, including the retentive components. The techniques are assessed in terms of their effectiveness, and the results are used to identify future research and specification requirements to direct developments. The case study identifies that while digital technologies may be used to design implant-retained facial prostheses, many limitations need to be addressed to make the techniques clinically viable. It also identifies the need to develop a more robust specification that covers areas such as resolution, accuracy, materials, and design, against which potential technologies may be assessed. There is a need to develop a specification against which potential technologies may be assessed for their suitability in soft tissue facial prosthetics. The specification will be developed using further experimental research studies.

  3. Using a Functional Architecture to Identify Human-Automation Trust Needs and Design Requirements

    DTIC Science & Technology

    2016-12-01

    FUNCTIONAL ARCHITECTURE TO IDENTIFY HUMAN-AUTOMATION TRUST NEEDS AND DESIGN REQUIREMENTS by Bradley A. Johnson December 2016 Thesis Advisor...maximum 200 words) This thesis develops and analyzes the functional architecture for an “autonomous” unmanned aerial system performing an...INTENTIONALLY LEFT BLANK v ABSTRACT This thesis develops and analyzes the functional architecture for an “autonomous” unmanned aerial system

  4. 23 CFR 1340.3 - Basic design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... STATE OBSERVATIONAL SURVEYS OF SEAT BELT USE § 1340.3 Basic design requirements. Surveys conducted in... requirement. The sample identified for the survey shall have a probability-based design such that estimates... 23 Highways 1 2010-04-01 2010-04-01 false Basic design requirements. 1340.3 Section 1340.3...

  5. 23 CFR 1340.3 - Basic design requirements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... STATE OBSERVATIONAL SURVEYS OF SEAT BELT USE § 1340.3 Basic design requirements. Surveys conducted in... requirement. The sample identified for the survey shall have a probability-based design such that estimates... 23 Highways 1 2011-04-01 2011-04-01 false Basic design requirements. 1340.3 Section 1340.3...

  6. A theory of requirements definition in engineering design

    NASA Astrophysics Data System (ADS)

    Eodice, Michael Thomas

    2000-10-01

    Traditional requirements-definition activities begin with the engineer or design team performing a needs-analysis to identify user requirements. Needs-analysis is generally subjective, and varies according to the composition and experience of the design team. Systematic procedures for defining and ranking requirements are necessary to consolidate the foundation on which the design process is predicated, and to enhance its outcome by providing the designer with a consistent, reliable approach to product development. As a first step towards developing such procedures, research was conducted at Stanford University using empirical data from a NASA spaceflight experiment that flew aboard Space Shuttle mission STS-90 (April 1998). This research was accomplished using ex post facto data analysis. This researcher served in the central role of Experiment Manager for the spaceflight experiment, and acted as a participant-observer while conducting formal research. To better understand requirement structure and evolution, individual requirements were decomposed using AND/OR graphs. The AND/OR graph data structure illustrates requirements evolution, and reveals that the original requirement is often met by fulfilling a series of sub-requirements that are easier to implement. Early in the product life cycle, many hundreds of potential needs were identified; however, it was a smaller subset of these initial needs that were realized in the final product. Based on analysis of a large group of requirements, it was observed that two critical components for any individual requirement were: (1) a stated need, and (2) an advocate to implement the need. Identification of need, or needs-analysis, although a necessary condition, is insufficient to ensure that a stated need evolves into a formal requirement. Equally important to the concept of requirements-definition is the notion of advocacy. Early in the product development cycle of the of the NASA experiment, many potential needs were

  7. More than meets the eye: Using cognitive work analysis to identify design requirements for future rail level crossing systems.

    PubMed

    Salmon, Paul M; Lenné, Michael G; Read, Gemma J M; Mulvihill, Christine M; Cornelissen, Miranda; Walker, Guy H; Young, Kristie L; Stevens, Nicholas; Stanton, Neville A

    2016-03-01

    An increasing intensity of operations means that the longstanding safety issue of rail level crossings is likely to become worse in the transport systems of the future. It has been suggested that the failure to prevent collisions may be, in part, due to a lack of systems thinking during design, crash analysis, and countermeasure development. This paper presents a systems analysis of current active rail level crossing systems in Victoria, Australia that was undertaken to identify design requirements to improve safety in future rail level crossing environments. Cognitive work analysis was used to analyse rail level crossing systems using data derived from a range of activities. Overall the analysis identified a range of instances where modification or redesign in line with systems thinking could potentially improve behaviour and safety. A notable finding is that there are opportunities for redesign outside of the physical rail level crossing infrastructure, including improved data systems, in-vehicle warnings and modifications to design processes, standards and guidelines. The implications for future rail level crossing systems are discussed. Copyright © 2015 Elsevier Ltd and The Ergonomics Society. All rights reserved.

  8. Advanced EVA system design requirements study

    NASA Technical Reports Server (NTRS)

    Woods, T. G.

    1988-01-01

    The results are presented of a study to identify specific criteria regarding space station extravehicular activity system (EVAS) hardware requirements. Key EVA design issues include maintainability, technology readiness, LSS volume vs. EVA time available, suit pressure/cabin pressure relationship and productivity effects, crew autonomy, integration of EVA as a program resource, and standardization of task interfaces. A variety of DOD EVA systems issues were taken into consideration. Recommendations include: (1) crew limitations, not hardware limitations; (2) capability to perform all of 15 generic missions; (3) 90 days on-orbit maintainability with 50 percent duty cycle as minimum; and (4) use by payload sponsors of JSC document 10615A plus a Generic Tool Kit and Specialized Tool Kit description. EVA baseline design requirements and criteria, including requirements of various subsystems, are outlined. Space station/EVA system interface requirements and EVA accommodations are discussed in the areas of atmosphere composition and pressure, communications, data management, logistics, safe haven, SS exterior and interior requirements, and SS airlock.

  9. Translating supportability requirements into design reality

    NASA Astrophysics Data System (ADS)

    Buche, J.; Cohen, I.

    1986-10-01

    This paper explores some of the principal issues in the integration of supportability into the design process. Roles of the contractor's design, supportability and management specialists and their government counterparts are discussed as they relate to logistics influence in design. Methods and processes by which weapon system logistics and readiness requirements are established, assessed, allocated to system elements and translated into specific design features are described. Tradeoff consideration, an approach to effective tradeoff criteria, and the progress of supportability issues through the program phases are identified with particular emphasis on the necessity for developing and maintaining an effective audit trail.

  10. Identifying Requirements for Effective Human-Automation Teamwork

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

    Jeffrey C. Joe; John O'Hara; Heather D. Medema

    Previous studies have shown that poorly designed human-automation collaboration, such as poorly designed communication protocols, often leads to problems for the human operators, such as: lack of vigilance, complacency, and loss of skills. These problems often lead to suboptimal system performance. To address this situation, a considerable amount of research has been conducted to improve human-automation collaboration and to make automation function better as a “team player.” Much of this research is based on an understanding of what it means to be a good team player from the perspective of a human team. However, the research is often based onmore » a simplified view of human teams and teamwork. In this study, we sought to better understand the capabilities and limitations of automation from the standpoint of human teams. We first examined human teams to identify the principles for effective teamwork. We next reviewed the research on integrating automation agents and human agents into mixed agent teams to identify the limitations of automation agents to conform to teamwork principles. This research resulted in insights that can lead to more effective human-automation collaboration by enabling a more realistic set of requirements to be developed based on the strengths and limitations of all agents.« less

  11. 8 CFR 215.8 - Requirements for biometric identifiers from aliens on departure from the United States.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 8 Aliens and Nationality 1 2014-01-01 2014-01-01 false Requirements for biometric identifiers from... Requirements for biometric identifiers from aliens on departure from the United States. (a)(1) The Secretary of... designated port of entry, to provide fingerprints, photograph(s) or other specified biometric identifiers...

  12. Spectrum analysis on quality requirements consideration in software design documents.

    PubMed

    Kaiya, Haruhiko; Umemura, Masahiro; Ogata, Shinpei; Kaijiri, Kenji

    2013-12-01

    Software quality requirements defined in the requirements analysis stage should be implemented in the final products, such as source codes and system deployment. To guarantee this meta-requirement, quality requirements should be considered in the intermediate stages, such as the design stage or the architectural definition stage. We propose a novel method for checking whether quality requirements are considered in the design stage. In this method, a technique called "spectrum analysis for quality requirements" is applied not only to requirements specifications but also to design documents. The technique enables us to derive the spectrum of a document, and quality requirements considerations in the document are numerically represented in the spectrum. We can thus objectively identify whether the considerations of quality requirements in a requirements document are adapted to its design document. To validate the method, we applied it to commercial software systems with the help of a supporting tool, and we confirmed that the method worked well.

  13. Towards Requirements in Systems Engineering for Aerospace IVHM Design

    NASA Technical Reports Server (NTRS)

    Saxena, Abhinav; Roychoudhury, Indranil; Lin, Wei; Goebel, Kai

    2013-01-01

    Health management (HM) technologies have been employed for safety critical system for decades, but a coherent systematic process to integrate HM into the system design is not yet clear. Consequently, in most cases, health management resorts to be an after-thought or 'band-aid' solution. Moreover, limited guidance exists for carrying out systems engineering (SE) on the subject of writing requirements for designs with integrated vehicle health management (IVHM). It is well accepted that requirements are key to developing a successful IVHM system right from the concept stage to development, verification, utilization, and support. However, writing requirements for systems with IVHM capability have unique challenges that require the designers to look beyond their own domains and consider the constraints and specifications of other interlinked systems. In this paper we look at various stages in the SE process and identify activities specific to IVHM design and development. More importantly, several relevant questions are posed that system engineers must address at various design and development stages. Addressing these questions should provide some guidance to systems engineers towards writing IVHM related requirements to ensure that appropriate IVHM functions are built into the system design.

  14. Requirements controlled design: A method for discovery of discontinuous system boundaries in the requirements hyperspace

    NASA Astrophysics Data System (ADS)

    Hollingsworth, Peter Michael

    The drive toward robust systems design, especially with respect to system affordability throughout the system life-cycle, has led to the development of several advanced design methods. While these methods have been extremely successful in satisfying the needs for which they have been developed, they inherently leave a critical area unaddressed. None of them fully considers the effect of requirements on the selection of solution systems. The goal of all of current modern design methodologies is to bring knowledge forward in the design process to the regions where more design freedom is available and design changes cost less. Therefore, it seems reasonable to consider the point in the design process where the greatest restrictions are placed on the final design, the point in which the system level requirements are set. Historically the requirements have been treated as something handed down from above. However, neither the customer nor the solution provider completely understood all of the options that are available in the broader requirements space. If a method were developed that provided the ability to understand the full scope of the requirements space, it would allow for a better comparison of potential solution systems with respect to both the current and potential future requirements. The key to a requirements conscious method is to treat requirements differently from the traditional approach. The method proposed herein is known as Requirements Controlled Design (RCD). By treating the requirements as a set of variables that control the behavior of the system, instead of variables that only define the response of the system, it is possible to determine a-priori what portions of the requirements space that any given system is capable of satisfying. Additionally, it should be possible to identify which systems can satisfy a given set of requirements and the locations where a small change in one or more requirements poses a significant risk to a design program

  15. Requirements for effective use of CFD in aerospace design

    NASA Technical Reports Server (NTRS)

    Raj, Pradeep

    1995-01-01

    This paper presents a perspective on the requirements that Computational Fluid Dynamics (CFD) technology must meet for its effective use in aerospace design. General observations are made on current aerospace design practices and deficiencies are noted that must be rectified for the U.S. aerospace industry to maintain its leadership position in the global marketplace. In order to rectify deficiencies, industry is transitioning to an integrated product and process development (IPPD) environment and design processes are undergoing radical changes. The role of CFD in producing data that design teams need to support flight vehicle development is briefly discussed. An overview of the current state of the art in CFD is given to provide an assessment of strengths and weaknesses of the variety of methods currently available, or under development, to produce aerodynamic data. Effectiveness requirements are examined from a customer/supplier view point with design team as customer and CFD practitioner as supplier. Partnership between the design team and CFD team is identified as an essential requirement for effective use of CFD. Rapid turnaround, reliable accuracy, and affordability are offered as three key requirements that CFD community must address if CFD is to play its rightful role in supporting the IPPD design environment needed to produce high quality yet affordable designs.

  16. Identifying the nontechnical skills required of nurses in general surgical wards.

    PubMed

    Marshall, Dianne C; Finlayson, Mary P

    2018-04-01

    To identify the nontechnical skills (NTS) required of nurses in general surgical wards for safe and effective care. As the largest occupational group, nurses are in an ideal position to block the vulnerabilities of patient adverse events in a surgical ward. Previous studies in the surgical environment have identified the NTS required of nurses for safe care in operating rooms; however, these skills have not been identified for nurses in general surgical wards. A nonparticipant observational descriptive design was used. A purposive sample of 15 registered nurses was recruited from four surgical wards and observed for a full shift on a morning, afternoon or night shift. Nonparticipant observations were conducted using field notes to collect data. A coding frame was developed, and an inductive process was used to analyse the data. A taxonomy comprising seven NTS required of nurses in their roles in surgical ward teams emerged from the data analysis. They are communication, leadership and management, planning, decision-making, situation awareness, teamwork and patient advocacy. Patient care provided by general surgical nurses involved the seven identified key NTS. These particular NTS are an important component of safe nursing practice as they underpin the provision of safe and effective care for general surgical patients. Nurses block the trajectory of error by using NTS to address the vulnerabilities in the system that can lead to adverse patient events. Identifying general surgical nurses' NTS enables the development of teaching strategies that target the learning of those skills to achieve successful work outcomes and improve patient safety. © 2018 John Wiley & Sons Ltd.

  17. Planetary mission requirements, technology and design considerations for a solar electric propulsion stage

    NASA Technical Reports Server (NTRS)

    Cork, M. J.; Hastrup, R. C.; Menard, W. A.; Olson, R. N.

    1979-01-01

    High energy planetary missions such as comet rendezvous, Saturn orbiter and asteroid rendezvous require development of a Solar Electric Propulsion Stage (SEPS) for augmentation of the Shuttle-IUS. Performance and functional requirements placed on the SEPS are presented. These requirements will be used in evolution of the SEPS design, which must be highly interactive with both the spacecraft and the mission design. Previous design studies have identified critical SEPS technology areas and some specific design solutions which are also presented in the paper.

  18. Requirements for the conceptual design of advanced underground coal extraction systems

    NASA Technical Reports Server (NTRS)

    Gangal, M. D.; Lavin, M. L.

    1981-01-01

    Conceptual design requirements are presented for underground coal mining systems having substantially improved performance in the areas of production cost and miner safety. Mandatory performance levels are also set for miner health, environmental impact, and coal recovery. In addition to mandatory design goals and constraints, a number of desirable system characteristics are identified which must be assessed in terms of their impact on production cost and their compatibility with other system elements. Although developed for the flat lying, moderately thick seams of Central Appalachia, these requirements are designed to be easily adaptable to other coals.

  19. 49 CFR 229.206 - Design requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 4 2011-10-01 2011-10-01 false Design requirements. 229.206 Section 229.206..., DEPARTMENT OF TRANSPORTATION RAILROAD LOCOMOTIVE SAFETY STANDARDS Locomotive Crashworthiness Design Requirements § 229.206 Design requirements. Each locomotive used in occupied service must meet the minimum anti...

  20. Using Work Action Analysis to Identify Web-Portal Requirements for a Professional Development Program

    ERIC Educational Resources Information Center

    Nickles, George

    2007-01-01

    This article describes using Work Action Analysis (WAA) as a method for identifying requirements for a web-based portal that supports a professional development program. WAA is a cognitive systems engineering method for modeling multi-agent systems to support design and evaluation. A WAA model of the professional development program of the…

  1. 49 CFR 229.206 - Design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...-climber, emergency egress, emergency interior lighting, and interior configuration design requirements set... 49 Transportation 4 2010-10-01 2010-10-01 false Design requirements. 229.206 Section 229.206..., DEPARTMENT OF TRANSPORTATION RAILROAD LOCOMOTIVE SAFETY STANDARDS Locomotive Crashworthiness Design...

  2. High-speed aerodynamic design of space vehicle and required hypersonic wind tunnel facilities

    NASA Astrophysics Data System (ADS)

    Sakakibara, Seizou; Hozumi, Kouichi; Soga, Kunio; Nomura, Shigeaki

    Problems associated with the aerodynamic design of space vehicles with emphasis of the role of hypersonic wind tunnel facilities in the development of the vehicle are considered. At first, to identify wind tunnel and computational fluid dynamics (CFD) requirements, operational environments are postulated for hypervelocity vehicles. Typical flight corridors are shown with the associated flow density: real gas effects, low density flow, and non-equilibrium flow. Based on an evaluation of these flight regimes and consideration of the operational requirements, the wind tunnel testing requirements for the aerodynamic design are examined. Then, the aerodynamic design logic and optimization techniques to develop and refine the configurations in a traditional phased approach based on the programmatic design of space vehicle are considered. Current design methodology for the determination of aerodynamic characteristics for designing the space vehicle, i.e., (1) ground test data, (2) numerical flow field solutions and (3) flight test data, are also discussed. Based on these considerations and by identifying capabilities and limits of experimental and computational methods, the role of a large conventional hypersonic wind tunnel and the high enthalpy tunnel and the interrelationship of the wind tunnels and CFD methods in actual aerodynamic design and analysis are discussed.

  3. Identifying lubricant options for compressor bearing designs

    NASA Astrophysics Data System (ADS)

    Karnaz, J.; Seeton, C.; Dixon, L.

    2017-08-01

    Today’s refrigeration and air conditioning market is not only driven by the environmental aspects of the refrigerants, but also by the energy efficiency and reliability of system operation. Numerous types of compressor designs are used in refrigeration and air conditioning applications which means that different bearings are used; and in some cases, multiple bearing types within a single compressor. Since only one lubricant is used, it is important to try to optimize the lubricant to meet the various demands and requirements for operation. This optimization entails investigating different types of lubricant chemistries, viscosities, and various formulation options. What makes evaluating these options more challenging is the refrigerant which changes the properties of the lubricant delivered to the bearing. Once the lubricant and refrigerant interaction are understood, through various test methods, then work can start on collaborating with compressor engineers on identifying the lubricant chemistry and formulation options. These interaction properties are important to the design engineer to make decisions on the adequacy of the lubricant before compressor tests are started. This paper will discuss the process to evaluate lubricants for various types of compressors and bearing design with focus on what’s needed for current refrigerant trends. In addition, the paper will show how the lubricant chemistry choice can be manipulated through understanding of the bearing design and knowledge of interaction with the refrigerant to maximize performance. Emphasis will be placed on evaluation of synthetic lubricants for both natural and synthetic low GWP refrigerants.

  4. Robot-Assisted Fracture Surgery: Surgical Requirements and System Design.

    PubMed

    Georgilas, Ioannis; Dagnino, Giulio; Tarassoli, Payam; Atkins, Roger; Dogramadzi, Sanja

    2018-03-09

    The design of medical devices is a complex and crucial process to ensure patient safety. It has been shown that improperly designed devices lead to errors and associated accidents and costs. A key element for a successful design is incorporating the views of the primary and secondary stakeholders early in the development process. They provide insights into current practice and point out specific issues with the current processes and equipment in use. This work presents how information from a user-study conducted in the early stages of the RAFS (Robot Assisted Fracture Surgery) project informed the subsequent development and testing of the system. The user needs were captured using qualitative methods and converted to operational, functional, and non-functional requirements based on the methods derived from product design and development. This work presents how the requirements inform a new workflow for intra-articular joint fracture reduction using a robotic system. It is also shown how the various elements of the system are developed to explicitly address one or more of the requirements identified, and how intermediate verification tests are conducted to ensure conformity. Finally, a validation test in the form of a cadaveric trial confirms the ability of the designed system to satisfy the aims set by the original research question and the needs of the users.

  5. Requirements for psychological models to support design: Towards ecological task analysis

    NASA Technical Reports Server (NTRS)

    Kirlik, Alex

    1991-01-01

    Cognitive engineering is largely concerned with creating environmental designs to support skillful and effective human activity. A set of necessary conditions are proposed for psychological models capable of supporting this enterprise. An analysis of the psychological nature of the design product is used to identify a set of constraints that models must meet if they can usefully guide design. It is concluded that cognitive engineering requires models with resources for describing the integrated human-environment system, and that these models must be capable of describing the activities underlying fluent and effective interaction. These features are required in order to be able to predict the cognitive activity that will be required given various design concepts, and to design systems that promote the acquisition of fluent, skilled behavior. These necessary conditions suggest that an ecological approach can provide valuable resources for psychological modeling to support design. Relying heavily on concepts from Brunswik's and Gibson's ecological theories, ecological task analysis is proposed as a framework in which to predict the types of cognitive activity required to achieve productive behavior, and to suggest how interfaces can be manipulated to alleviate certain types of cognitive demands. The framework is described in terms, and illustrated with an example from the previous research on modeling skilled human-environment interaction.

  6. 40 CFR 65.82 - Design requirements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 15 2011-07-01 2011-07-01 false Design requirements. 65.82 Section 65...) CONSOLIDATED FEDERAL AIR RULE Transfer Racks § 65.82 Design requirements. (a) The owner or operator shall equip... shall be designed to collect the regulated material displaced from tank trucks or railcars during...

  7. Using Design Capability Indices to Satisfy Ranged Sets of Design Requirements

    NASA Technical Reports Server (NTRS)

    Chen, Wei; Allen, Janet K.; Simpson, Timothy W.; Mistree, Farrokh

    1996-01-01

    For robust design it is desirable to allow the design requirements to vary within a certain range rather than setting point targets. This is particularly important during the early stages of design when little is known about the system and its requirements. Toward this end, design capability indices are developed in this paper to assess the capability of a family of designs, represented by a range of top-level design specifications, to satisfy a ranged set of design requirements. Design capability indices are based on process capability indices from statistical process control and provide a single objective, alternate approach to the use of Taguchi's signal-to- noise ratio which is often used for robust design. Successful implementation of design capability indices ensures that a family of designs conforms to a given ranged set of design requirements. To demonstrate an application and the usefulness of design capability indices, the design of a solar powered irrigation system is presented. Our focus in this paper is on the development and implementation of design capability indices as an alternate approach to the use of the signal-to-noise ratio and not on the results of the example problem, per se.

  8. Identifying external nutrient reduction requirements and potential in the hypereutrophic Lake Taihu Basin, China.

    PubMed

    Peng, Jiao-Ting; Zhu, Xiao-Dong; Sun, Xiang; Song, Xiao-Wei

    2018-04-01

    Reducing external nutrient loads is the first step for controlling eutrophication. Here, we identified external nutrient reduction requirements and potential of strategies for achieving reductions to remediate a eutrophic water body, Lake Taihu, China. A mass balance approach based on the entire lake was used to identify nutrient reduction requirements; an empirical export coefficient approach was introduced to estimate the nutrient reduction potential of the overall program on integrated regulation of Taihu Lake Basin (hereafter referred to as the "Guideline"). Reduction requirements included external total nitrogen (TN) and total phosphorus (TP) loads, which should be reduced by 41-55 and 25-50%, respectively, to prevent nutrient accumulation in Lake Taihu and to meet the planned water quality targets. In 2010, which is the most seriously polluted calendar year during the 2008-2014 period, the nutrient reduction requirements were estimated to be 36,819 tons of N and 2442 tons of P, and the potential nutrient reduction strategies would reduce approximately 25,821 tons of N and 3024 tons of P. Since there is a net N remaining in the reduction requirements, it should be the focus and deserves more attention in identifying external nutrient reduction strategies. Moreover, abatement measures outlined in the Guideline with high P reduction potential required large monetary investments. Achieving TP reduction requirement using the cost-effective strategy costs about 80.24 million USD. The design of nutrient reduction strategies should be enacted according to regional and sectoral differences and the cost-effectiveness of abatement measures.

  9. Requirements for Space Settlement Design

    NASA Astrophysics Data System (ADS)

    Gale, Anita E.; Edwards, Richard P.

    2004-02-01

    When large space settlements are finally built, inevitably the customers who pay for them will start the process by specifying requirements with a Request for Proposal (RFP). Although we are decades away from seeing the first of these documents, some of their contents can be anticipated now, and provide insight into the variety of elements that must be researched and developed before space settlements can happen. Space Settlement Design Competitions for High School students present design challenges in the form of RFPs, which predict basic requirements for space settlement attributes in the future, including structural features, infrastructure, living conveniences, computers, business areas, and safety. These requirements are generically summarized, and unique requirements are noted for specific space settlement locations and applications.

  10. Software requirements flow-down and preliminary software design for the G-CLEF spectrograph

    NASA Astrophysics Data System (ADS)

    Evans, Ian N.; Budynkiewicz, Jamie A.; DePonte Evans, Janet; Miller, Joseph B.; Onyuksel, Cem; Paxson, Charles; Plummer, David A.

    2016-08-01

    The Giant Magellan Telescope (GMT)-Consortium Large Earth Finder (G-CLEF) is a fiber-fed, precision radial velocity (PRV) optical echelle spectrograph that will be the first light instrument on the GMT. The G-CLEF instrument device control subsystem (IDCS) provides software control of the instrument hardware, including the active feedback loops that are required to meet the G-CLEF PRV stability requirements. The IDCS is also tasked with providing operational support packages that include data reduction pipelines and proposal preparation tools. A formal, but ultimately pragmatic approach is being used to establish a complete and correct set of requirements for both the G-CLEF device control and operational support packages. The device control packages must integrate tightly with the state-machine driven software and controls reference architecture designed by the GMT Organization. A model-based systems engineering methodology is being used to develop a preliminary design that meets these requirements. Through this process we have identified some lessons that have general applicability to the development of software for ground-based instrumentation. For example, tasking an individual with overall responsibility for science/software/hardware integration is a key step to ensuring effective integration between these elements. An operational concept document that includes detailed routine and non- routine operational sequences should be prepared in parallel with the hardware design process to tie together these elements and identify any gaps. Appropriate time-phasing of the hardware and software design phases is important, but revisions to driving requirements that impact software requirements and preliminary design are inevitable. Such revisions must be carefully managed to ensure efficient use of resources.

  11. Magnetohydrodynamics (MHD) Engineering Test Facility (ETF) 200 MWe power plant. Design Requirements Document (DRD)

    NASA Technical Reports Server (NTRS)

    Rigo, H. S.; Bercaw, R. W.; Burkhart, J. A.; Mroz, T. S.; Bents, D. J.; Hatch, A. M.

    1981-01-01

    A description and the design requirements for the 200 MWe (nominal) net output MHD Engineering Test Facility (ETF) Conceptual Design, are presented. Performance requirements for the plant are identified and process conditions are indicated at interface stations between the major systems comprising the plant. Also included are the description, functions, interfaces and requirements for each of these major systems. The lastest information (1980-1981) from the MHD technology program are integrated with elements of a conventional steam electric power generating plant.

  12. Using Dissimilarity Metrics to Identify Interesting Designs

    NASA Technical Reports Server (NTRS)

    Feather, Martin; Kiper, James

    2006-01-01

    A computer program helps to blend the power of automated-search software, which is able to generate large numbers of design solutions, with the insight of expert designers, who are able to identify preferred designs but do not have time to examine all the solutions. From among the many automated solutions to a given design problem, the program selects a smaller number of solutions that are worthy of scrutiny by the experts in the sense that they are sufficiently dissimilar from each other. The program makes the selection in an interactive process that involves a sequence of data-mining steps interspersed with visual displays of results of these steps to the experts. At crucial points between steps, the experts provide directives to guide the process. The program uses heuristic search techniques to identify nearly optimal design solutions and uses dissimilarity metrics defined by the experts to characterize the degree to which solutions are interestingly different. The search, data-mining, and visualization features of the program were derived from previously developed risk-management software used to support a risk-centric design methodology

  13. Designing eHealth that Matters via a Multidisciplinary Requirements Development Approach

    PubMed Central

    Wentzel, Jobke; Van Gemert-Pijnen, Julia EWC

    2013-01-01

    Background Requirements development is a crucial part of eHealth design. It entails all the activities devoted to requirements identification, the communication of requirements to other developers, and their evaluation. Currently, a requirements development approach geared towards the specifics of the eHealth domain is lacking. This is likely to result in a mismatch between the developed technology and end user characteristics, physical surroundings, and the organizational context of use. It also makes it hard to judge the quality of eHealth design, since it makes it difficult to gear evaluations of eHealth to the main goals it is supposed to serve. Objective In order to facilitate the creation of eHealth that matters, we present a practical, multidisciplinary requirements development approach which is embedded in a holistic design approach for eHealth (the Center for eHealth Research roadmap) that incorporates both human-centered design and business modeling. Methods Our requirements development approach consists of five phases. In the first, preparatory, phase the project team is composed and the overall goal(s) of the eHealth intervention are decided upon. Second, primary end users and other stakeholders are identified by means of audience segmentation techniques and our stakeholder identification method. Third, the designated context of use is mapped and end users are profiled by means of requirements elicitation methods (eg, interviews, focus groups, or observations). Fourth, stakeholder values and eHealth intervention requirements are distilled from data transcripts, which leads to phase five, in which requirements are communicated to other developers using a requirements notation template we developed specifically for the context of eHealth technologies. Results The end result of our requirements development approach for eHealth interventions is a design document which includes functional and non-functional requirements, a list of stakeholder values, and end

  14. Designing eHealth that Matters via a Multidisciplinary Requirements Development Approach.

    PubMed

    Van Velsen, Lex; Wentzel, Jobke; Van Gemert-Pijnen, Julia Ewc

    2013-06-24

    Requirements development is a crucial part of eHealth design. It entails all the activities devoted to requirements identification, the communication of requirements to other developers, and their evaluation. Currently, a requirements development approach geared towards the specifics of the eHealth domain is lacking. This is likely to result in a mismatch between the developed technology and end user characteristics, physical surroundings, and the organizational context of use. It also makes it hard to judge the quality of eHealth design, since it makes it difficult to gear evaluations of eHealth to the main goals it is supposed to serve. In order to facilitate the creation of eHealth that matters, we present a practical, multidisciplinary requirements development approach which is embedded in a holistic design approach for eHealth (the Center for eHealth Research roadmap) that incorporates both human-centered design and business modeling. Our requirements development approach consists of five phases. In the first, preparatory, phase the project team is composed and the overall goal(s) of the eHealth intervention are decided upon. Second, primary end users and other stakeholders are identified by means of audience segmentation techniques and our stakeholder identification method. Third, the designated context of use is mapped and end users are profiled by means of requirements elicitation methods (eg, interviews, focus groups, or observations). Fourth, stakeholder values and eHealth intervention requirements are distilled from data transcripts, which leads to phase five, in which requirements are communicated to other developers using a requirements notation template we developed specifically for the context of eHealth technologies. The end result of our requirements development approach for eHealth interventions is a design document which includes functional and non-functional requirements, a list of stakeholder values, and end user profiles in the form of

  15. Are we developing walkable suburbs through urban planning policy? Identifying the mix of design requirements to optimise walking outcomes from the 'Liveable Neighbourhoods' planning policy in Perth, Western Australia.

    PubMed

    Hooper, Paula; Knuiman, Matthew; Bull, Fiona; Jones, Evan; Giles-Corti, Billie

    2015-05-16

    Planning policy makers and practitioners are requesting clearer guidance on the 'essential' ingredients as assessed by public health researchers to ensure suburban neighbourhood environments are designed to promote active living behaviours such as walking. To identify the combination of design requirements from the 'Liveable Neighbourhoods' (LN) planning policy in Perth, Western Australia that were optimally supportive of walking. K-means cluster analysis identified groups of developments with homogeneous LN features from its community design (CD), movement network (MN), lot layout (LL) and public parkland (PP) elements. Walking behaviours measured using the Neighbourhood Physical Activity Questionnaire were compared between participants resident in the different clusters, adjusting for demographic characteristics, self-selection factors, stage of construction and scale of development. Compared with participants living in the referent cluster of 'poor CD and PP developments' those living in: 'MN and LL developments' had higher odds of doing any (OR = 1.74; 95 % CI = 1.22, 2.48) and ≥60 min walking for recreation (WR) (OR = 2.05; 1.46, 2.88); 'PP developments' had increased odds of doing any WR (OR = 3.53; 2.02, 6.17), ≥60 min WR (OR = 3.37; 1.98, 5.74) and any total walking (TW) (OR = 2.35; 1.36, 4.09); 'CD-MN developments' had increased odds of doing any walking for transport (WT) (OR = 2.64; 1.38, 5.06), ≥60 min WT (OR = 1.98; 1.09, 3.61), any TW (OR = 1.71; 1.44, 2.03), ≥60 min TW (OR = 1.77; 1.14, 2.76) and ≥150 min TW (OR = 1.47; 1.15, 1.86). This study is the first to have empirically identified a mix of specific and distinguishing planning policy neighbourhood design requirements to optimise walking outcomes. These findings will assist in the assessment of urban plans for greenfield suburban developments designed to promote walking and physical activity.

  16. 7 CFR 801.11 - Related design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 7 2010-01-01 2010-01-01 false Related design requirements. 801.11 Section 801.11... FOR GRAIN INSPECTION EQUIPMENT § 801.11 Related design requirements. (a) Suitability. The design... tolerances prescribed in §§ 801.3 through 801.10, be capable of repeating its results when the equipment is...

  17. Concept design theory and model for multi-use space facilities: Analysis of key system design parameters through variance of mission requirements

    NASA Astrophysics Data System (ADS)

    Reynerson, Charles Martin

    This research has been performed to create concept design and economic feasibility data for space business parks. A space business park is a commercially run multi-use space station facility designed for use by a wide variety of customers. Both space hardware and crew are considered as revenue producing payloads. Examples of commercial markets may include biological and materials research, processing, and production, space tourism habitats, and satellite maintenance and resupply depots. This research develops a design methodology and an analytical tool to create feasible preliminary design information for space business parks. The design tool is validated against a number of real facility designs. Appropriate model variables are adjusted to ensure that statistical approximations are valid for subsequent analyses. The tool is used to analyze the effect of various payload requirements on the size, weight and power of the facility. The approach for the analytical tool was to input potential payloads as simple requirements, such as volume, weight, power, crew size, and endurance. In creating the theory, basic principles are used and combined with parametric estimation of data when necessary. Key system parameters are identified for overall system design. Typical ranges for these key parameters are identified based on real human spaceflight systems. To connect the economics to design, a life-cycle cost model is created based upon facility mass. This rough cost model estimates potential return on investments, initial investment requirements and number of years to return on the initial investment. Example cases are analyzed for both performance and cost driven requirements for space hotels, microgravity processing facilities, and multi-use facilities. In combining both engineering and economic models, a design-to-cost methodology is created for more accurately estimating the commercial viability for multiple space business park markets.

  18. 10 CFR 707.7 - Random drug testing requirements and identification of testing designated positions.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 10 Energy 4 2012-01-01 2012-01-01 false Random drug testing requirements and identification of... PROGRAMS AT DOE SITES Procedures § 707.7 Random drug testing requirements and identification of testing... evidence of the use of illegal drugs of employees in testing designated positions identified in this...

  19. 10 CFR 707.7 - Random drug testing requirements and identification of testing designated positions.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 10 Energy 4 2014-01-01 2014-01-01 false Random drug testing requirements and identification of... PROGRAMS AT DOE SITES Procedures § 707.7 Random drug testing requirements and identification of testing... evidence of the use of illegal drugs of employees in testing designated positions identified in this...

  20. 10 CFR 707.7 - Random drug testing requirements and identification of testing designated positions.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 4 2011-01-01 2011-01-01 false Random drug testing requirements and identification of... PROGRAMS AT DOE SITES Procedures § 707.7 Random drug testing requirements and identification of testing... evidence of the use of illegal drugs of employees in testing designated positions identified in this...

  1. 10 CFR 707.7 - Random drug testing requirements and identification of testing designated positions.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 10 Energy 4 2013-01-01 2013-01-01 false Random drug testing requirements and identification of... PROGRAMS AT DOE SITES Procedures § 707.7 Random drug testing requirements and identification of testing... evidence of the use of illegal drugs of employees in testing designated positions identified in this...

  2. 10 CFR 707.7 - Random drug testing requirements and identification of testing designated positions.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 4 2010-01-01 2010-01-01 false Random drug testing requirements and identification of... PROGRAMS AT DOE SITES Procedures § 707.7 Random drug testing requirements and identification of testing... evidence of the use of illegal drugs of employees in testing designated positions identified in this...

  3. 46 CFR 58.30-5 - Design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 2 2010-10-01 2010-10-01 false Design requirements. 58.30-5 Section 58.30-5 Shipping... AND RELATED SYSTEMS Fluid Power and Control Systems § 58.30-5 Design requirements. (a) The.... (b) The system shall be so designed that proper functioning of any unit shall not be affected by the...

  4. 46 CFR 58.30-5 - Design requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 2 2011-10-01 2011-10-01 false Design requirements. 58.30-5 Section 58.30-5 Shipping... AND RELATED SYSTEMS Fluid Power and Control Systems § 58.30-5 Design requirements. (a) The.... (b) The system shall be so designed that proper functioning of any unit shall not be affected by the...

  5. 7 CFR 3560.559 - Design and construction requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Design and construction requirements. 3560.559... § 3560.559 Design and construction requirements. (a) General. The requirements established in § 3560.60... encouraged that the design of off-farm labor housing incorporate outdoor shower, boot washing station, and/or...

  6. Software for quantitative analysis of radiotherapy: overview, requirement analysis and design solutions.

    PubMed

    Zhang, Lanlan; Hub, Martina; Mang, Sarah; Thieke, Christian; Nix, Oliver; Karger, Christian P; Floca, Ralf O

    2013-06-01

    Radiotherapy is a fast-developing discipline which plays a major role in cancer care. Quantitative analysis of radiotherapy data can improve the success of the treatment and support the prediction of outcome. In this paper, we first identify functional, conceptional and general requirements on a software system for quantitative analysis of radiotherapy. Further we present an overview of existing radiotherapy analysis software tools and check them against the stated requirements. As none of them could meet all of the demands presented herein, we analyzed possible conceptional problems and present software design solutions and recommendations to meet the stated requirements (e.g. algorithmic decoupling via dose iterator pattern; analysis database design). As a proof of concept we developed a software library "RTToolbox" following the presented design principles. The RTToolbox is available as open source library and has already been tested in a larger-scale software system for different use cases. These examples demonstrate the benefit of the presented design principles. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  7. 7 CFR 1724.51 - Design requirements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ..., galloping or conductor separation, design loads, structure strength limitations, insulator selection and design, guying requirements, and vibration considerations. For lines composed of steel or concrete poles, or steel towers, in which load information will be used to purchase the structures, the design data...

  8. 7 CFR 1724.51 - Design requirements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ..., galloping or conductor separation, design loads, structure strength limitations, insulator selection and design, guying requirements, and vibration considerations. For lines composed of steel or concrete poles, or steel towers, in which load information will be used to purchase the structures, the design data...

  9. 7 CFR 1724.51 - Design requirements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ..., galloping or conductor separation, design loads, structure strength limitations, insulator selection and design, guying requirements, and vibration considerations. For lines composed of steel or concrete poles, or steel towers, in which load information will be used to purchase the structures, the design data...

  10. The effect of requirements prioritization on avionics system conceptual design

    NASA Astrophysics Data System (ADS)

    Lorentz, John

    This dissertation will provide a detailed approach and analysis of a new collaborative requirements prioritization methodology that has been used successfully on four Coast Guard avionics acquisition and development programs valued at $400M+. A statistical representation of participant study results will be discussed and analyzed in detail. Many technically compliant projects fail to deliver levels of performance and capability that the customer desires. Some of these systems completely meet "threshold" levels of performance; however, the distribution of resources in the process devoted to the development and management of the requirements does not always represent the voice of the customer. This is especially true for technically complex projects such as modern avionics systems. A simplified facilitated process for prioritization of system requirements will be described. The collaborative prioritization process, and resulting artifacts, aids the systems engineer during early conceptual design. All requirements are not the same in terms of customer priority. While there is a tendency to have many thresholds inside of a system design, there is usually a subset of requirements and system performance that is of the utmost importance to the design. These critical capabilities and critical levels of performance typically represent the reason the system is being built. The systems engineer needs processes to identify these critical capabilities, the associated desired levels of performance, and the risks associated with the specific requirements that define the critical capability. The facilitated prioritization exercise is designed to collaboratively draw out these critical capabilities and levels of performance so they can be emphasized in system design. Developing the purpose, scheduling and process for prioritization events are key elements of systems engineering and modern project management. The benefits of early collaborative prioritization flow throughout the

  11. An intelligent system and a relational data base for codifying helmet-mounted display symbology design requirements

    NASA Astrophysics Data System (ADS)

    Rogers, Steven P.; Hamilton, David B.

    1994-06-01

    To employ the most readily comprehensible presentation methods and symbology with helmet-mounted displays (HMDs), it is critical to identify the information elements needed to perform each pilot function and to analytically determine the attributes of these elements. The extensive analyses of mission requirements currently performed for pilot-vehicle interface design can be aided and improved by the new capabilities of intelligent systems and relational databases. An intelligent system, named ACIDTEST, has been developed specifically for organizing and applying rules to identify the best display modalities, locations, and formats. The primary objectives of the ACIDTEST system are to provide rapid accessibility to pertinent display research data, to integrate guidelines from many disciplines and identify conflicts among these guidelines, to force a consistent display approach among the design team members, and to serve as an 'audit trail' of design decisions and justifications. A powerful relational database called TAWL ORDIR has been developed to document information requirements and attributes for use by ACIDTEST as well as to greatly augment the applicability of mission analysis data. TAWL ORDIR can be used to rapidly reorganize mission analysis data components for study, perform commonality analyses for groups of tasks, determine the information content requirement for tailored display modes, and identify symbology integration opportunities.

  12. Identifying and Validating Requirements of a Mobile-Based Self-Management System for People Living with HIV.

    PubMed

    Mehraeen, Esmaeil; Safdari, Reza; Seyedalinaghi, Seyed Ahmad; Mohammadzadeh, Niloofar; Arji, Goli

    2018-01-01

    Due to the widespread use of mobile technology and the low cost of this technology, implementing a mobile-based self-management system can lead to adherence to the medication regimens and promotion of the health of people living with HIV (PLWH). We aimed to identify requirements of a mobile-based self-management system, and validate them from the perspective of infectious diseases specialists. This is a mixed-methods study that carried out in two main phases. In the first phase, we identified requirements of a mobile-based self-management system for PLWH. In the second phase, identified requirements were validated using a researcher made questionnaire. The statistical population was infectious diseases specialists affiliated to Tehran University of Medical Sciences. The collected data were analyzed using SPSS statistical software (version 19), and descriptive statistics. By full-text review of selected studies, we determined requirements of a mobile-based self-management system in four categories: demographic, clinical, strategically and technical capabilities. According to the findings, 6 data elements for demographic category, 11 data elements for clinical category, 10 items for self-management strategies, and 11 features for technical capabilities were selected. Using the identified preferences, it is possible to design and implement a mobile-based self-management system for HIV-positive people. Developing a mobile-based self-management system is expected to progress the skills of self-management PLWH, improve of medication regimen adherence, and facilitate communication with healthcare providers.

  13. Requirements' Role in Mobilizing and Enabling Design Conversation

    NASA Astrophysics Data System (ADS)

    Bergman, Mark

    Requirements play a critical role in a design conversation of systems and products. Product and system design exists at the crossroads of problems, solutions and requirements. Requirements contextualize problems and solutions, pointing the way to feasible outcomes. These are captured with models and detailed specifications. Still, stakeholders need to be able to understand one-another using shared design representations in order to mobilize bias and transform knowledge towards legitimized, desired results. Many modern modeling languages, including UML, as well as detailed, logic-based specifications are beyond the comprehension of key stakeholders. Hence, they inhibit, rather than promote design conversation. Improved design boundary objects (DBO), especially design requirements boundary objects (DRBO), need to be created and refined to improve the communications between principals. Four key features of design boundary objects that improve and promote design conversation are discussed in detail. A systems analysis and design case study is presented which demonstrates these features in action. It describes how a small team of analysts worked with key stakeholders to mobilize and guide a complex system design discussion towards an unexpected, yet desired outcome within a short time frame.

  14. 46 CFR 164.018-9 - Design requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 6 2014-10-01 2014-10-01 false Design requirements. 164.018-9 Section 164.018-9 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL MATERIALS Retroreflective Material for Lifesaving Equipment § 164.018-9 Design requirements. (a) Type I retroreflective...

  15. Advanced EVA system design requirements study

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Design requirements and criteria for the Space Station Advanced Extravehicular Activity System (EVAS) including crew enclosures, portable life support systems, maneuvering propulsion systems, and related extravehicular activity (EVA) support equipment were defined and established. The EVA mission requirements, environments, and medical and physiological requirements, as well as opertional, procedures, and training issues were considered.

  16. 49 CFR 229.206 - Design requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 49 Transportation 4 2012-10-01 2012-10-01 false Design requirements. 229.206 Section 229.206 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION RAILROAD LOCOMOTIVE SAFETY STANDARDS Locomotive Crashworthiness Design...

  17. 49 CFR 229.206 - Design requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 4 2013-10-01 2013-10-01 false Design requirements. 229.206 Section 229.206 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION RAILROAD LOCOMOTIVE SAFETY STANDARDS Locomotive Crashworthiness Design...

  18. 49 CFR 229.206 - Design requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 49 Transportation 4 2014-10-01 2014-10-01 false Design requirements. 229.206 Section 229.206 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL RAILROAD ADMINISTRATION, DEPARTMENT OF TRANSPORTATION RAILROAD LOCOMOTIVE SAFETY STANDARDS Locomotive Crashworthiness Design...

  19. 7 CFR 3560.60 - Design requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Design requirements. 3560.60 Section 3560.60... AGRICULTURE DIRECT MULTI-FAMILY HOUSING LOANS AND GRANTS Direct Loan and Grant Origination § 3560.60 Design... design. All MFH must be residential in character, except as provided for in § 3560.58(b), and must meet...

  20. 7 CFR 3560.60 - Design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 15 2010-01-01 2010-01-01 false Design requirements. 3560.60 Section 3560.60... AGRICULTURE DIRECT MULTI-FAMILY HOUSING LOANS AND GRANTS Direct Loan and Grant Origination § 3560.60 Design... design. All MFH must be residential in character, except as provided for in § 3560.58(b), and must meet...

  1. Space station electric power system requirements and design

    NASA Technical Reports Server (NTRS)

    Teren, Fred

    1987-01-01

    An overview of the conceptual definition and design of the space station Electric Power System (EPS) is given. Responsibilities for the design and development of the EPS are defined. The EPS requirements are listed and discussed, including average and peak power requirements, contingency requirements, and fault tolerance. The most significant Phase B trade study results are summarized, and the design selections and rationale are given. Finally, the power management and distribution system architecture is presented.

  2. Feasibility study of an Integrated Program for Aerospace-vehicle Design (IPAD) system. Volume 4: Design of the IPAD system. Part 1: IPAD system design requirements, phase 1, task 2

    NASA Technical Reports Server (NTRS)

    Garrocq, C. A.; Hurley, M. J.

    1973-01-01

    System requirements, software elements, and hardware equipment required for an IPAD system are defined. An IPAD conceptual design was evolved, a potential user survey was conducted, and work loads for various types of interactive terminals were projected. Various features of major host computing systems were compared, and target systems were selected in order to identify the various elements of software required.

  3. Design requirements for ubiquitous computing environments for healthcare professionals.

    PubMed

    Bång, Magnus; Larsson, Anders; Eriksson, Henrik

    2004-01-01

    Ubiquitous computing environments can support clinical administrative routines in new ways. The aim of such computing approaches is to enhance routine physical work, thus it is important to identify specific design requirements. We studied healthcare professionals in an emergency room and developed the computer-augmented environment NOSTOS to support teamwork in that setting. NOSTOS uses digital pens and paper-based media as the primary input interface for data capture and as a means of controlling the system. NOSTOS also includes a digital desk, walk-up displays, and sensor technology that allow the system to track documents and activities in the workplace. We propose a set of requirements and discuss the value of tangible user interfaces for healthcare personnel. Our results suggest that the key requirements are flexibility in terms of system usage and seamless integration between digital and physical components. We also discuss how ubiquitous computing approaches like NOSTOS can be beneficial in the medical workplace.

  4. Trading Robustness Requirements in Mars Entry Trajectory Design

    NASA Technical Reports Server (NTRS)

    Lafleur, Jarret M.

    2009-01-01

    One of the most important metrics characterizing an atmospheric entry trajectory in preliminary design is the size of its predicted landing ellipse. Often, requirements for this ellipse are set early in design and significantly influence both the expected scientific return from a particular mission and the cost of development. Requirements typically specify a certain probability level (6-level) for the prescribed ellipse, and frequently this latter requirement is taken at 36. However, searches for the justification of 36 as a robustness requirement suggest it is an empirical rule of thumb borrowed from non-aerospace fields. This paper presents an investigation into the sensitivity of trajectory performance to varying robustness (6-level) requirements. The treatment of robustness as a distinct objective is discussed, and an analysis framework is presented involving the manipulation of design variables to effect trades between performance and robustness objectives. The scenario for which this method is illustrated is the ballistic entry of an MSL-class Mars entry vehicle. Here, the design variable is entry flight path angle, and objectives are parachute deploy altitude performance and error ellipse robustness. Resulting plots show the sensitivities between these objectives and trends in the entry flight path angles required to design to these objectives. Relevance to the trajectory designer is discussed, as are potential steps for further development and use of this type of analysis.

  5. Towards a Methodology for Identifying Program Constraints During Requirements Analysis

    NASA Technical Reports Server (NTRS)

    Romo, Lilly; Gates, Ann Q.; Della-Piana, Connie Kubo

    1997-01-01

    Requirements analysis is the activity that involves determining the needs of the customer, identifying the services that the software system should provide and understanding the constraints on the solution. The result of this activity is a natural language document, typically referred to as the requirements definition document. Some of the problems that exist in defining requirements in large scale software projects includes synthesizing knowledge from various domain experts and communicating this information across multiple levels of personnel. One approach that addresses part of this problem is called context monitoring and involves identifying the properties of and relationships between objects that the system will manipulate. This paper examines several software development methodologies, discusses the support that each provide for eliciting such information from experts and specifying the information, and suggests refinements to these methodologies.

  6. UML Profiles for Design Decisions and Non-Functional Requirements

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

    Zhu, Liming; Gorton, Ian

    2007-06-30

    A software architecture is composed of a collection of design decisions. Each design decision helps or hinders certain Non-Functional Requirements (NFR). Current software architecture views focus on expressing components and connectors in the system. Design decisions and their relationships with non-functional requirements are often captured in separate design documentation, not explicitly expressed in any views. This disassociation makes architecture comprehension and architecture evolution harder. In this paper, we propose a UML profile for modeling design decisions and an associated UML profile for modeling non-functional requirements in a generic way. The two UML profiles treat design decisions and nonfunctional requirements asmore » first-class elements. Modeled design decisions always refer to existing architectural elements and thus maintain traceability between the two. We provide a mechanism for checking consistency over this traceability. An exemplar is given as« less

  7. Formal Verification Toolkit for Requirements and Early Design Stages

    NASA Technical Reports Server (NTRS)

    Badger, Julia M.; Miller, Sheena Judson

    2011-01-01

    Efficient flight software development from natural language requirements needs an effective way to test designs earlier in the software design cycle. A method to automatically derive logical safety constraints and the design state space from natural language requirements is described. The constraints can then be checked using a logical consistency checker and also be used in a symbolic model checker to verify the early design of the system. This method was used to verify a hybrid control design for the suit ports on NASA Johnson Space Center's Space Exploration Vehicle against safety requirements.

  8. Vehicle systems and payload requirements evaluation. [computer programs for identifying launch vehicle system requirements

    NASA Technical Reports Server (NTRS)

    Rea, F. G.; Pittenger, J. L.; Conlon, R. J.; Allen, J. D.

    1975-01-01

    Techniques developed for identifying launch vehicle system requirements for NASA automated space missions are discussed. Emphasis is placed on development of computer programs and investigation of astrionics for OSS missions and Scout. The Earth Orbit Mission Program - 1 which performs linear error analysis of launch vehicle dispersions for both vehicle and navigation system factors is described along with the Interactive Graphic Orbit Selection program which allows the user to select orbits which satisfy mission requirements and to evaluate the necessary injection accuracy.

  9. Transforming Multidisciplinary Customer Requirements to Product Design Specifications

    NASA Astrophysics Data System (ADS)

    Ma, Xiao-Jie; Ding, Guo-Fu; Qin, Sheng-Feng; Li, Rong; Yan, Kai-Yin; Xiao, Shou-Ne; Yang, Guang-Wu

    2017-09-01

    With the increasing of complexity of complex mechatronic products, it is necessary to involve multidisciplinary design teams, thus, the traditional customer requirements modeling for a single discipline team becomes difficult to be applied in a multidisciplinary team and project since team members with various disciplinary backgrounds may have different interpretations of the customers' requirements. A new synthesized multidisciplinary customer requirements modeling method is provided for obtaining and describing the common understanding of customer requirements (CRs) and more importantly transferring them into a detailed and accurate product design specifications (PDS) to interact with different team members effectively. A case study of designing a high speed train verifies the rationality and feasibility of the proposed multidisciplinary requirement modeling method for complex mechatronic product development. This proposed research offersthe instruction to realize the customer-driven personalized customization of complex mechatronic product.

  10. 39 CFR 776.6 - Design requirements for construction.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 39 Postal Service 1 2010-07-01 2010-07-01 false Design requirements for construction. 776.6 Section 776.6 Postal Service UNITED STATES POSTAL SERVICE ENVIRONMENTAL REGULATIONS FLOODPLAIN AND WETLAND PROCEDURES Floodplain Management § 776.6 Design requirements for construction. If structures impact, are...

  11. 14 CFR 152.607 - Building design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Building design requirements. 152.607... (CONTINUED) AIRPORTS AIRPORT AID PROGRAM Energy Conservation in Airport Aid Program § 152.607 Building design... or major building modification project proposed at the airport. The building design, construction...

  12. 40 CFR 265.254 - Design and operating requirements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 26 2011-07-01 2011-07-01 false Design and operating requirements. 265.254 Section 265.254 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES... DISPOSAL FACILITIES Waste Piles § 265.254 Design and operating requirements. The owner or operator of each...

  13. Learning Design: Requirements, Practice and Prospects

    ERIC Educational Resources Information Center

    MacLean, Piers; Scott, Bernard

    2007-01-01

    Purpose: The purpose of this paper is to describe research into the requirements, practice and prospects for the field of learning design and provide the findings of this study to date alongside early recommendations for furthering the profession in the UK. Design/methodology/approach: The paper describes the findings of a review of the literature…

  14. Exploration Planetary Surface Structural Systems: Design Requirements and Compliance

    NASA Technical Reports Server (NTRS)

    Dorsey, John T.

    2011-01-01

    The Lunar Surface Systems Project developed system concepts that would be necessary to establish and maintain a permanent human presence on the Lunar surface. A variety of specific system implementations were generated as a part of the scenarios, some level of system definition was completed, and masses estimated for each system. Because the architecture studies generally spawned a large number of system concepts and the studies were executed in a short amount of time, the resulting system definitions had very low design fidelity. This paper describes the development sequence required to field a particular structural system: 1) Define Requirements, 2) Develop the Design and 3) Demonstrate Compliance of the Design to all Requirements. This paper also outlines and describes in detail the information and data that are required to establish structural design requirements and outlines the information that would comprise a planetary surface system Structures Requirements document.

  15. Identifiable piezoelectric security system design

    NASA Astrophysics Data System (ADS)

    Li, Zhenyu; Zhang, Xiaoming

    2017-10-01

    Directing at the disadvantages of low environmental suitability, inferior anti-interference ability and being easy to be found and destroyed in existing security product, a kind of identifiable piezoelectric security system based on piezoelectric cable is designed. The present system gathers vibration signals of different moving bodies, such as human, vehicles, animals and so on, with piezoelectric cable buried under -ground and distinguishes the different moving bodies through recognition algorithm and thus giving an alarm. As is shown in experiments, the present system has the features of good concealment and high accuracy in distinguishing moving bodies.

  16. 39 CFR 776.6 - Design requirements for construction.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 39 Postal Service 1 2011-07-01 2011-07-01 false Design requirements for construction. 776.6 Section 776.6 Postal Service UNITED STATES POSTAL SERVICE ENVIRONMENTAL REGULATIONS FLOODPLAIN AND WETLAND PROCEDURES Floodplain Management § 776.6 Design requirements for construction. If structures impact, are located in, or support development in a...

  17. Space Station Furnace Facility. Volume 2: Requirements Definition and Conceptual Design Study. Appendix 3: Environment Analysis. Volume 2; Appendix 3

    NASA Technical Reports Server (NTRS)

    1992-01-01

    A Preliminary Safety Analysis (PSA) is being accomplished as part of the Space Station Furnace Facility (SSFF) contract. This analysis is intended to support SSFF activities by analyzing concepts and designs as they mature to develop essential safety requirements for inclusion in the appropriate specifications, and designs, as early as possible. In addition, the analysis identifies significant safety concerns that may warrant specific trade studies or design definition, etc. The analysis activity to date concentrated on hazard and hazard cause identification and requirements development with the goal of developing a baseline set of detailed requirements to support trade study, specifications development, and preliminary design activities. The analysis activity will continue as the design and concepts mature. Section 2 defines what was analyzed, but it is likely that the SSFF definitions will undergo further changes. The safety analysis activity will reflect these changes as they occur. The analysis provides the foundation for later safety activities. The hazards identified will in most cases have Preliminary Design Review (PDR) applicability. The requirements and recommendations developed for each hazard will be tracked to ensure proper and early resolution of safety concerns.

  18. The Integrated Mission-Planning Station: Functional Requirements, Aviator-Computer Dialogue, and Human Engineering Design Criteria.

    DTIC Science & Technology

    1983-08-01

    AD- R136 99 THE INTEGRATED MISSION-PLNNING STATION: FUNCTIONAL 1/3 REQUIREMENTS AVIATOR-..(U) RNACAPR SCIENCES INC SANTA BARBARA CA S P ROGERS RUG...Continue on reverse side o necess.ar and identify by btock number) Interactive Systems Aviation Control-Display Functional Require- Plan-Computer...Dialogue Avionics Systems ments Map Display Army Aviation Design Criteria Helicopters M4ission Planning Cartography Digital Map Human Factors Navigation

  19. Higher speed freight truck design : performance requirements.

    DOT National Transportation Integrated Search

    2013-10-01

    This proposed requirements document combines a set of requirements for high-speed freight car truck design and performance : from the generally accepted standards in the U.S. Code of Federal Regulation (CFR), the Association of American Railroads : (...

  20. Design Requirements for Communication-Intensive Interactive Applications

    NASA Astrophysics Data System (ADS)

    Bolchini, Davide; Garzotto, Franca; Paolini, Paolo

    Online interactive applications call for new requirements paradigms to capture the growing complexity of computer-mediated communication. Crafting successful interactive applications (such as websites and multimedia) involves modeling the requirements for the user experience, including those leading to content design, usable information architecture and interaction, in profound coordination with the communication goals of all stakeholders involved, ranging from persuasion to social engagement, to call for action. To face this grand challenge, we propose a methodology for modeling communication requirements and provide a set of operational conceptual tools to be used in complex projects with multiple stakeholders. Through examples from real-life projects and lessons-learned from direct experience, we draw on the concepts of brand, value, communication goals, information and persuasion requirements to systematically guide analysts to master the multifaceted connections of these elements as drivers to inform successful communication designs.

  1. VARED: Verification and Analysis of Requirements and Early Designs

    NASA Technical Reports Server (NTRS)

    Badger, Julia; Throop, David; Claunch, Charles

    2014-01-01

    Requirements are a part of every project life cycle; everything going forward in a project depends on them. Good requirements are hard to write, there are few useful tools to test, verify, or check them, and it is difficult to properly marry them to the subsequent design, especially if the requirements are written in natural language. In fact, the inconsistencies and errors in the requirements along with the difficulty in finding these errors contribute greatly to the cost of the testing and verification stage of flight software projects [1]. Large projects tend to have several thousand requirements written at various levels by different groups of people. The design process is distributed and a lack of widely accepted standards for requirements often results in a product that varies widely in style and quality. A simple way to improve this would be to standardize the design process using a set of tools and widely accepted requirements design constraints. The difficulty with this approach is finding the appropriate constraints and tools. Common complaints against the tools available include ease of use, functionality, and available features. Also, although preferable, it is rare that these tools are capable of testing the quality of the requirements.

  2. Engineering and Design: Rock Mass Classification Data Requirements for Rippability

    DTIC Science & Technology

    1983-06-30

    Engineering and Design ROCK MASS CLASSIFICATION DATA REQUIREMENTS FOR RIPPABILITY Distribution Restriction Statement Approved for public release...and Design: Rock Mass Classification Data Requirements for Rippability Contract Number Grant Number Program Element Number Author(s) Project...Technical Letter 1110-2-282 Engineering and Design ROCK MASS CLASSIFICATION DATA REQUIREMENTS FOR RIPPABILITY 1“ -“ This ETL contains information on data

  3. 40 CFR 65.82 - Design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ...) CONSOLIDATED FEDERAL AIR RULE Transfer Racks § 65.82 Design requirements. (a) The owner or operator shall equip each transfer rack with either one of the following equipment: (1) A closed vent system which routes...

  4. A Review of Safety and Design Requirements of the Artificial Pancreas.

    PubMed

    Blauw, Helga; Keith-Hynes, Patrick; Koops, Robin; DeVries, J Hans

    2016-11-01

    As clinical studies with artificial pancreas systems for automated blood glucose control in patients with type 1 diabetes move to unsupervised real-life settings, product development will be a focus of companies over the coming years. Directions or requirements regarding safety in the design of an artificial pancreas are, however, lacking. This review aims to provide an overview and discussion of safety and design requirements of the artificial pancreas. We performed a structured literature search based on three search components-type 1 diabetes, artificial pancreas, and safety or design-and extended the discussion with our own experiences in developing artificial pancreas systems. The main hazards of the artificial pancreas are over- and under-dosing of insulin and, in case of a bi-hormonal system, of glucagon or other hormones. For each component of an artificial pancreas and for the complete system we identified safety issues related to these hazards and proposed control measures. Prerequisites that enable the control algorithms to provide safe closed-loop control are accurate and reliable input of glucose values, assured hormone delivery and an efficient user interface. In addition, the system configuration has important implications for safety, as close cooperation and data exchange between the different components is essential.

  5. Defining Support Requirements During Conceptual Design of Reusable Launch Vehicles

    NASA Technical Reports Server (NTRS)

    Morris, W. D.; White, N. H.; Davis, W. T.; Ebeling, C. E.

    1995-01-01

    Current methods for defining the operational support requirements of new systems are data intensive and require significant design information. Methods are being developed to aid in the analysis process of defining support requirements for new launch vehicles during their conceptual design phase that work with the level of information available during this phase. These methods will provide support assessments based on the vehicle design and the operating scenarios. The results can be used both to define expected support requirements for new launch vehicle designs and to help evaluate the benefits of using new technologies. This paper describes the models, their current status, and provides examples of their use.

  6. IMCS reflight certification requirements and design specifications

    NASA Technical Reports Server (NTRS)

    1984-01-01

    The requirements for reflight certification are established. Software requirements encompass the software programs that are resident in the PCC, DEP, PDSS, EC, or any related GSE. A design approach for the reflight software packages is recommended. These designs will be of sufficient detail to permit the implementation of reflight software. The PDSS/IMC Reflight Certification system provides the tools and mechanisms for the user to perform the reflight certification test procedures, test data capture, test data display, and test data analysis. The system as defined will be structured to permit maximum automation of reflight certification procedures and test data analysis.

  7. Update of bridge design standards in Alabama for AASHTO LRFD seismic design requirements.

    DOT National Transportation Integrated Search

    2013-11-01

    The Alabama Department of Transportation (ALDOT) has been required to update their bridge design to the LRFD Bridge Design Specifications. This transition has resulted in changes to the seismic design standards of bridges in the state. Multiple bridg...

  8. Identifying Contingency Requirements using Obstacle Analysis on an Unpiloted Aerial Vehicle

    NASA Technical Reports Server (NTRS)

    Lutz, Robyn R.; Nelson, Stacy; Patterson-Hine, Ann; Frost, Chad R.; Tal, Doron

    2005-01-01

    This paper describes experience using Obstacle Analysis to identify contingency requirements on an unpiloted aerial vehicle. A contingency is an operational anomaly, and may or may not involve component failure. The challenges to this effort were: ( I ) rapid evolution of the system while operational, (2) incremental autonomy as capabilities were transferred from ground control to software control and (3) the eventual safety-criticality of such systems as they begin to fly over populated areas. The results reported here are preliminary but show that Obstacle Analysis helped (1) identify new contingencies that appeared as autonomy increased; (2) identify new alternatives for handling both previously known and new contingencies; and (3) investigate the continued validity of existing software requirements for contingency handling. Since many mobile, intelligent systems are built using a development process that poses the same challenges, the results appear to have applicability to other similar systems.

  9. Developing Performance Based Requirements for Open Architecture Design

    DTIC Science & Technology

    2006-04-30

    Åèìáëáíáçå= oÉëÉ~êÅÜ=póãéçëáìã= DEVELOPING PERFORMANCE BASED REQUIREMENTS FOR OPEN ARCHITECTURE DESIGN Published: 30 April 2006 by Brad Naegle...for Open Architecture Design 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e. TASK NUMBER 5f...Ñçê=áåÑçêãÉÇ=ÅÜ~åÖÉ======= = - 174 - = = Developing Performance Based Requirements for Open Architecture Design Presenter: Brad Naegle, Lieutenant

  10. 14 CFR 21.99 - Required design changes.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Changes to Type Certificates § 21.99 Required design changes. (a) When an Airworthiness Directive is issued under Part 39 the holder of the type certificate for the... approval of the design changes, make available the descriptive data covering the changes to all operators...

  11. 14 CFR 21.99 - Required design changes.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Changes to Type Certificates § 21.99 Required design changes. (a) When an Airworthiness Directive is issued under Part 39 the holder of the type certificate for the... approval of the design changes, make available the descriptive data covering the changes to all operators...

  12. 14 CFR 21.99 - Required design changes.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Changes to Type Certificates § 21.99 Required design changes. (a) When an Airworthiness Directive is issued under Part 39 the holder of the type certificate for the... approval of the design changes, make available the descriptive data covering the changes to all operators...

  13. 14 CFR 21.99 - Required design changes.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... CERTIFICATION PROCEDURES FOR PRODUCTS AND PARTS Changes to Type Certificates § 21.99 Required design changes. (a) When an Airworthiness Directive is issued under Part 39 the holder of the type certificate for the...; and (2) Upon approval of the design changes, make available the descriptive data covering the changes...

  14. IT Requirements Integration in High-Rise Construction Design Projects

    NASA Astrophysics Data System (ADS)

    Levina, Anastasia; Ilin, Igor; Esedulaev, Rustam

    2018-03-01

    The paper discusses the growing role of IT support for the operation of modern high-rise buildings, due to the complexity of managing engineering systems of buildings and the requirements of consumers for the IT infrastructure. The existing regulatory framework for the development of design documentation for construction, including high-rise buildings, is analyzed, and the lack of coherence in the development of this documentation with the requirements for the creation of an automated management system and the corresponding IT infrastructure is stated. The lack of integration between these areas is the cause of delays and inefficiencies both at the design stage and at the stage of putting the building into operation. The paper proposes an approach to coordinate the requirements of the IT infrastructure of high-rise buildings and design documentation for construction. The solution to this problem is possible within the framework of the enterprise architecture concept by coordinating the requirements of the IT and technological layers at the design stage of the construction.

  15. A Methodology for Quantifying Certain Design Requirements During the Design Phase

    NASA Technical Reports Server (NTRS)

    Adams, Timothy; Rhodes, Russel

    2005-01-01

    A methodology for developing and balancing quantitative design requirements for safety, reliability, and maintainability has been proposed. Conceived as the basis of a more rational approach to the design of spacecraft, the methodology would also be applicable to the design of automobiles, washing machines, television receivers, or almost any other commercial product. Heretofore, it has been common practice to start by determining the requirements for reliability of elements of a spacecraft or other system to ensure a given design life for the system. Next, safety requirements are determined by assessing the total reliability of the system and adding redundant components and subsystems necessary to attain safety goals. As thus described, common practice leaves the maintainability burden to fall to chance; therefore, there is no control of recurring costs or of the responsiveness of the system. The means that have been used in assessing maintainability have been oriented toward determining the logistical sparing of components so that the components are available when needed. The process established for developing and balancing quantitative requirements for safety (S), reliability (R), and maintainability (M) derives and integrates NASA s top-level safety requirements and the controls needed to obtain program key objectives for safety and recurring cost (see figure). Being quantitative, the process conveniently uses common mathematical models. Even though the process is shown as being worked from the top down, it can also be worked from the bottom up. This process uses three math models: (1) the binomial distribution (greaterthan- or-equal-to case), (2) reliability for a series system, and (3) the Poisson distribution (less-than-or-equal-to case). The zero-fail case for the binomial distribution approximates the commonly known exponential distribution or "constant failure rate" distribution. Either model can be used. The binomial distribution was selected for

  16. 7 CFR 3575.42 - Design and construction requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 15 2011-01-01 2011-01-01 false Design and construction requirements. 3575.42 Section..., DEPARTMENT OF AGRICULTURE GENERAL Community Programs Guaranteed Loans § 3575.42 Design and construction... all funds were utilized for authorized purposes. The borrower and the lender will authorize designs...

  17. Flight Hardware Packaging Design for Stringent EMC Radiated Emission Requirements

    NASA Technical Reports Server (NTRS)

    Lortz, Charlene L.; Huang, Chi-Chien N.; Ravich, Joshua A.; Steiner, Carl N.

    2013-01-01

    This packaging design approach can help heritage hardware meet a flight project's stringent EMC radiated emissions requirement. The approach requires only minor modifications to a hardware's chassis and mainly concentrates on its connector interfaces. The solution is to raise the surface area where the connector is mounted by a few millimeters using a pedestal, and then wrapping with conductive tape from the cable backshell down to the surface-mounted connector. This design approach has been applied to JPL flight project subsystems. The EMC radiated emissions requirements for flight projects can vary from benign to mission critical. If the project's EMC requirements are stringent, the best approach to meet EMC requirements would be to design an EMC control program for the project early on and implement EMC design techniques starting with the circuit board layout. This is the ideal scenario for hardware that is built from scratch. Implementation of EMC radiated emissions mitigation techniques can mature as the design progresses, with minimal impact to the design cycle. The real challenge exists for hardware that is planned to be flown following a built-to-print approach, in which heritage hardware from a past project with a different set of requirements is expected to perform satisfactorily for a new project. With acceptance of heritage, the design would already be established (circuit board layout and components have already been pre-determined), and hence any radiated emissions mitigation techniques would only be applicable at the packaging level. The key is to take a heritage design with its known radiated emissions spectrum and repackage, or modify its chassis design so that it would have a better chance of meeting the new project s radiated emissions requirements.

  18. Space-based multifunctional end effector systems functional requirements and proposed designs

    NASA Technical Reports Server (NTRS)

    Mishkin, A. H.; Jau, B. M.

    1988-01-01

    The end effector is an essential element of teleoperator and telerobot systems to be employed in space in the next decade. The report defines functional requirements for end effector systems to perform operations that are currently only feasible through Extra-Vehicular Activity (EVA). Specific tasks and functions that the end effectors must be capable of performing are delineated. Required capabilities for forces and torques, clearances, compliance, and sensing are described, using current EVA requirements as guidelines where feasible. The implications of these functional requirements on the elements of potential end effector systems are discussed. The systems issues that must be considered in the design of space-based manipulator systems are identified; including impacts on subsystems tightly coupled to the end effector, i.e., control station, information processing, manipulator arm, tool and equipment stowage. Possible end effector designs are divided into three categories: single degree-of-freedom end effectors, multiple degree of freedom end effectors, and anthropomorphic hands. Specific design alternatives are suggested and analyzed within the individual categories. Two evaluations are performed: the first considers how well the individual end effectors could substitute for EVA; the second compares how manipulator systems composed of the top performers from the first evaluation would improve the space shuttle Remote Manipulator System (RMS) capabilities. The analysis concludes that the anthropomorphic hand is best-suited for EVA tasks. A left- and right-handed anthropomorphic manipulator arm configuration is suggested as appropriate to be affixed to the RMS, but could also be used as part of the Smart Front End for the Orbital Maneuvering Vehicle (OMV). The technical feasibility of the anthropomorphic hand and its control are demonstrated. An evolutionary development approach is proposed and approximate scheduling provided for implementing the suggested

  19. 17 CFR 41.31 - Notice-designation requirements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ...-designation requirements. (a) Any board of trade that is a national securities exchange, a national securities... electronic or hard copy form, shall be labeled as “Notice of Designation as a Contract Market in Security Futures Products,” and shall include: (1) The name and address of the board of trade; (2) The name and...

  20. Civil helicopter design and operational requirement

    NASA Technical Reports Server (NTRS)

    Waters, K. T.

    1978-01-01

    Design and operational requirements and other factors that have a restraining influence on expansion of the helicopter market are discussed. The needs of operators, users, pilots and the community at large are examined. The impact of future technology developments and other trends such as use, energy shortages, and civil and military helicopter requirements and development is assessed. Areas where research and development are needed to provide opportunities for lowering life cycle costs and removing barriers to further expansion of the industry are analyzed.

  1. Design of admission medication reconciliation technology: a human factors approach to requirements and prototyping.

    PubMed

    Lesselroth, Blake J; Adams, Kathleen; Tallett, Stephanie; Wood, Scott D; Keeling, Amy; Cheng, Karen; Church, Victoria L; Felder, Robert; Tran, Hanna

    2013-01-01

    Our objectives were to (1) develop an in-depth understanding of the workflow and information flow in medication reconciliation, and (2) design medication reconciliation support technology using a combination of rapid-cycle prototyping and human-centered design. Although medication reconciliation is a national patient safety goal, limitations both of physical environment and in workflow can make it challenging to implement durable systems. We used several human factors techniques to gather requirements and develop a new process to collect a medication history at hospital admission. We completed an ethnography and time and motion analysis of pharmacists in order to illustrate the processes used to reconcile medications. We then used the requirements to design prototype multimedia software for collecting a bedside medication history. We observed how pharmacists incorporated the technology into their physical environment and documented usability issues. Admissions occurred in three phases: (1) list compilation, (2) order processing, and (3) team coordination. Current medication reconciliation processes at the hospital average 19 minutes to complete and do not include a bedside interview. Use of our technology during a bedside interview required an average of 29 minutes. The software represents a viable proof-of-concept to automate parts of history collection and enhance patient communication. However, we discovered several usability issues that require attention. We designed a patient-centered technology to enhance how clinicians collect a patient's medication history. By using multiple human factors methods, our research team identified system themes and design constraints that influence the quality of the medication reconciliation process and implementation effectiveness of new technology. Evidence-based design, human factors, patient-centered care, safety, technology.

  2. Advanced EVA system design requirements study, executive summary

    NASA Technical Reports Server (NTRS)

    1986-01-01

    Design requirements and criteria for the space station advanced Extravehicular Activity System (EVAS) including crew enclosures, portable life support systems, maneuvering propulsion systems, and related EVA support equipment were established. The EVA mission requirements, environments, and medical and physiological requirements, as well as operational, procedures and training issues were considered.

  3. System Design Techniques for Reducing the Power Requirements of Advanced life Support Systems

    NASA Technical Reports Server (NTRS)

    Finn, Cory; Levri, Julie; Pawlowski, Chris; Crawford, Sekou; Luna, Bernadette (Technical Monitor)

    2000-01-01

    The high power requirement associated with overall operation of regenerative life support systems is a critical Z:p technological challenge. Optimization of individual processors alone will not be sufficient to produce an optimized system. System studies must be used in order to improve the overall efficiency of life support systems. Current research efforts at NASA Ames Research Center are aimed at developing approaches for reducing system power and energy usage in advanced life support systems. System energy integration and energy reuse techniques are being applied to advanced life support, in addition to advanced control methods for efficient distribution of power and thermal resources. An overview of current results of this work will be presented. The development of integrated system designs that reuse waste heat from sources such as crop lighting and solid waste processing systems will reduce overall power and cooling requirements. Using an energy integration technique known as Pinch analysis, system heat exchange designs are being developed that match hot and cold streams according to specific design principles. For various designs, the potential savings for power, heating and cooling are being identified and quantified. The use of state-of-the-art control methods for distribution of resources, such as system cooling water or electrical power, will also reduce overall power and cooling requirements. Control algorithms are being developed which dynamically adjust the use of system resources by the various subsystems and components in order to achieve an overall goal, such as smoothing of power usage and/or heat rejection profiles, while maintaining adequate reserves of food, water, oxygen, and other consumables, and preventing excessive build-up of waste materials. Reductions in the peak loading of the power and thermal systems will lead to lower overall requirements. Computer simulation models are being used to test various control system designs.

  4. The Solar Probe mission - Mission design concepts and requirements

    NASA Technical Reports Server (NTRS)

    Ayon, Juan A.

    1992-01-01

    The Solar Probe concept as studied by the Jet Propulsion Laboratory represents the first mission to combine out-of-the-ecliptic scientific coverage with multiple, close solar encounters (at 4 solar radii). The scientific objectives of the mission have driven the investigation and analysis of several mission design concepts, all optimized to meet the science/mission requirements. This paper reviews those mission design concepts developed, the science objectives that drive the mission design, and the principle mission requirements associated with these various concepts.

  5. [Focus Notified Bodies. New requirements for designation and monitoring].

    PubMed

    Poos, U; Edelhäuser, R

    2014-12-01

    For medical devices with a higher risk, Notified Bodies assess whether the manufacturers and their products fulfill the requirements laid down in the European directives on medical devices. Notified Bodies are designated through a designation procedure by the designating authority, in Germany by ZLG. The requirements for the designation arise from the respective annexes of the directives on medical devices. Since these are only minimal criteria, different documents have been compiled on a European and national level to concretize these minimal criteria regarding the organization, quality management system, resources, and certification procedure. The rules of the ZLG are thereby the essential documents for designation in Germany. Moreover, according to Implementing Regulation (EU) no. 912/2013, the European commission and the other European designating authorities also have to be involved in the designation process. The aim of continuous monitoring of the Notified Bodies with assessments on the bodies' premises as well as with observed audits is to ensure the permanent fulfillment of the requirements. If nonconformities are found in a body's quality management system or in its implementation of the conformity assessment procedures, the body is obliged to provide ZLG with a corrective actions plan. In the case that the nonconformities are not resolved in time or critical nonconformities are found, ZLG may take actions, e.g., restrict the scope of designation, suspend, or - as last resort - withdraw the designation.

  6. Comparison of Resource Requirements for a Wind Tunnel Test Designed with Conventional vs. Modern Design of Experiments Methods

    NASA Technical Reports Server (NTRS)

    DeLoach, Richard; Micol, John R.

    2011-01-01

    The factors that determine data volume requirements in a typical wind tunnel test are identified. It is suggested that productivity in wind tunnel testing can be enhanced by managing the inference error risk associated with evaluating residuals in a response surface modeling experiment. The relationship between minimum data volume requirements and the factors upon which they depend is described and certain simplifications to this relationship are realized when specific model adequacy criteria are adopted. The question of response model residual evaluation is treated and certain practical aspects of response surface modeling are considered, including inference subspace truncation. A wind tunnel test plan developed by using the Modern Design of Experiments illustrates the advantages of an early estimate of data volume requirements. Comparisons are made with a representative One Factor At a Time (OFAT) wind tunnel test matrix developed to evaluate a surface to air missile.

  7. Supporting the design of office layout meeting ergonomics requirements.

    PubMed

    Margaritis, Spyros; Marmaras, Nicolas

    2007-11-01

    This paper proposes a method and an information technology tool aiming to support the ergonomics layout design of individual workstations in a given space (building). The proposed method shares common ideas with previous generic methods for office layout. However, it goes a step forward and focuses on the cognitive tasks which have to be carried out by the designer or the design team trying to alleviate them. This is achieved in two ways: (i) by decomposing the layout design problem to six main stages, during which only a limited number of variables and requirements are considered and (ii) by converting the ergonomics requirements to functional design guidelines. The information technology tool (ErgoOffice 0.1) automates certain phases of the layout design process, and supports the design team either by its editing and graphical facilities or by providing adequate memory support.

  8. Requirements analysis, domain knowledge, and design

    NASA Technical Reports Server (NTRS)

    Potts, Colin

    1988-01-01

    Two improvements to current requirements analysis practices are suggested: domain modeling, and the systematic application of analysis heuristics. Domain modeling is the representation of relevant application knowledge prior to requirements specification. Artificial intelligence techniques may eventually be applicable for domain modeling. In the short term, however, restricted domain modeling techniques, such as that in JSD, will still be of practical benefit. Analysis heuristics are standard patterns of reasoning about the requirements. They usually generate questions of clarification or issues relating to completeness. Analysis heuristics can be represented and therefore systematically applied in an issue-based framework. This is illustrated by an issue-based analysis of JSD's domain modeling and functional specification heuristics. They are discussed in the context of the preliminary design of simple embedded systems.

  9. Identifying Occupations at Risk for Laryngeal Disorders Requiring Specialty Voice Care.

    PubMed

    Mori, Matthew C; Francis, David O; Song, Phillip C

    2017-10-01

    Objective To identify occupational groups' use of specialty voice clinic evaluation. Study Design Retrospective cohort study. Setting Tertiary subspecialty clinic. Subjects and Methods We analyzed data collected on patients presenting to the Massachusetts Eye and Ear Infirmary Voice and Speech Laboratory over a 20-year period (1993-2013). The relative risk (RR) and 99% confidence interval (CI) of presentation were calculated for each occupational category in the greater Boston population using year-matched data from the Bureau of Labor Statistics (BLS). Results The records of 12,120 new patients were reviewed. Using year- and occupation-matched BLS data from 2005 to 2013, 2726 patients were included in the cohort analysis. Several occupations had significantly higher risk of presentation. These included arts and entertainment (RR 4.98, CI 4.18-5.95), law (RR 3.24, CI 2.48-4.23), education (RR 3.08, CI 2.70-3.52), and social services (RR 2.07, CI 1.57-2.73). In contrast, many occupations had significantly reduced risk of presentation for laryngological disorders, for example, maintenance (RR 0.25, CI 0.15-0.42), food preparation (RR 0.35, CI 0.26-0.48), and administrative support (RR 0.49, CI 0.41-0.57). Conclusion Certain occupations are associated with higher use of laryngological services presumably because of their vocational voice needs. In addition to confirming findings from other studies, we identified several new occupation groups with increased or decreased risk for laryngologic disorders. Understanding what factors predispose to requiring specialty voice evaluation may help in targeting preventative efforts.

  10. 24 CFR 100.205 - Design and construction requirements.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... FAIR HOUSING DISCRIMINATORY CONDUCT UNDER THE FAIR HOUSING ACT Prohibition Against Discrimination Because of Handicap § 100.205 Design and construction requirements. (a) Covered multifamily dwellings for... accessible to and usable by handicapped persons; (2) All the doors designed to allow passage into and within...

  11. 24 CFR 100.205 - Design and construction requirements.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... FAIR HOUSING DISCRIMINATORY CONDUCT UNDER THE FAIR HOUSING ACT Prohibition Against Discrimination Because of Handicap § 100.205 Design and construction requirements. (a) Covered multifamily dwellings for... accessible to and usable by handicapped persons; (2) All the doors designed to allow passage into and within...

  12. 24 CFR 100.205 - Design and construction requirements.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... FAIR HOUSING DISCRIMINATORY CONDUCT UNDER THE FAIR HOUSING ACT Prohibition Against Discrimination Because of Handicap § 100.205 Design and construction requirements. (a) Covered multifamily dwellings for... accessible to and usable by handicapped persons; (2) All the doors designed to allow passage into and within...

  13. 24 CFR 100.205 - Design and construction requirements.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... FAIR HOUSING DISCRIMINATORY CONDUCT UNDER THE FAIR HOUSING ACT Prohibition Against Discrimination Because of Handicap § 100.205 Design and construction requirements. (a) Covered multifamily dwellings for... accessible to and usable by handicapped persons; (2) All the doors designed to allow passage into and within...

  14. 24 CFR 100.205 - Design and construction requirements.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... FAIR HOUSING DISCRIMINATORY CONDUCT UNDER THE FAIR HOUSING ACT Prohibition Against Discrimination Because of Handicap § 100.205 Design and construction requirements. (a) Covered multifamily dwellings for... accessible to and usable by handicapped persons; (2) All the doors designed to allow passage into and within...

  15. Advanced EVA system design requirements study: EVAS/space station system interface requirements

    NASA Technical Reports Server (NTRS)

    Woods, T. G.

    1985-01-01

    The definition of the Extravehicular Activity (EVA) systems interface requirements and accomodations for effective integration of a production EVA capability into the space station are contained. A description of the EVA systems for which the space station must provide the various interfaces and accomodations are provided. The discussion and analyses of the various space station areas in which the EVA interfaces are required and/or from which implications for EVA system design requirements are derived, are included. The rationale is provided for all EVAS mechanical, fluid, electrical, communications, and data system interfaces as well as exterior and interior requirements necessary to facilitate EVA operations. Results of the studies supporting these discussions are presented in the appendix.

  16. Space Station Furnace Facility. Volume 2: Requirements definition and conceptual design study

    NASA Technical Reports Server (NTRS)

    1992-01-01

    The Space Station Freedom Furnace (SSFF) Project is divided into two phases: phase 1, a definition study phase, and phase 2, a design and development phase. TBE was awarded a research study entitled, 'Space Station Furnace Facility Requirements Definition and Conceptual Design Study' on June 2, 1989. This report addresses the definition study phase only. Phase 2 is to be complete after completion of phase 1. The contract encompassed a requirements definition study and culminated in hardware/facility conceptual designs and hardware demonstration development models to test these conceptual designs. The study was divided into two parts. Part 1 (the basic part of the effort) encompassed preliminary requirements definition and assessment; conceptional design of the SSFF Core; fabrication of mockups; and preparation for the support of a conceptional design review (CoDR). Part 2 (the optional part of the effort) included detailed definition of the engineering and design requirements, as derived from the science requirements; refinement of the conceptual design of the SSFF Core; fabrication and testing of the 'breadboards' or development models; and preparation for and support of a requirements definition review.

  17. Scheduler Design Criteria: Requirements and Considerations

    NASA Technical Reports Server (NTRS)

    Lee, Hanbong

    2016-01-01

    This presentation covers fundamental requirements and considerations for developing schedulers in airport operations. We first introduce performance and functional requirements for airport surface schedulers. Among various optimization problems in airport operations, we focus on airport surface scheduling problem, including runway and taxiway operations. We then describe a basic methodology for airport surface scheduling such as node-link network model and scheduling algorithms previously developed. Next, we explain how to design a mathematical formulation in more details, which consists of objectives, decision variables, and constraints. Lastly, we review other considerations, including optimization tools, computational performance, and performance metrics for evaluation.

  18. 7 CFR 1779.42 - Design and construction requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 12 2010-01-01 2010-01-01 false Design and construction requirements. 1779.42 Section 1779.42 Agriculture Regulations of the Department of Agriculture (Continued) RURAL UTILITIES SERVICE, DEPARTMENT OF AGRICULTURE (CONTINUED) WATER AND WASTE DISPOSAL PROGRAMS GUARANTEED LOANS § 1779.42 Design and...

  19. MarFS-Requirements-Design-Configuration-Admin

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

    Kettering, Brett Michael; Grider, Gary Alan

    This document will be organized into sections that are defined by the requirements for a file system that presents a near-POSIX (Portable Operating System Interface) interface to the user, but whose data is stored in whatever form is most efficient for the type of data being stored. After defining the requirement the design for meeting the requirement will be explained. Finally there will be sections on configuring and administering this file system. More and more, data dominates the computing world. There is a “sea” of data out there in many different formats that needs to be managed and used. “Mar”more » means “sea” in Spanish. Thus, this product is dubbed MarFS, a file system for a sea of data.« less

  20. 8 CFR 215.8 - Requirements for biometric identifiers from aliens on departure from the United States.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 8 Aliens and Nationality 1 2011-01-01 2011-01-01 false Requirements for biometric identifiers from... Requirements for biometric identifiers from aliens on departure from the United States. (a)(1) The Secretary of... of entry, to provide fingerprints, photograph(s) or other specified biometric identifiers...

  1. 8 CFR 215.8 - Requirements for biometric identifiers from aliens on departure from the United States.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 8 Aliens and Nationality 1 2012-01-01 2012-01-01 false Requirements for biometric identifiers from... Requirements for biometric identifiers from aliens on departure from the United States. (a)(1) The Secretary of... of entry, to provide fingerprints, photograph(s) or other specified biometric identifiers...

  2. 8 CFR 215.8 - Requirements for biometric identifiers from aliens on departure from the United States.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 8 Aliens and Nationality 1 2010-01-01 2010-01-01 false Requirements for biometric identifiers from... Requirements for biometric identifiers from aliens on departure from the United States. (a)(1) The Secretary of... of entry, to provide fingerprints, photograph(s) or other specified biometric identifiers...

  3. 8 CFR 215.8 - Requirements for biometric identifiers from aliens on departure from the United States.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 8 Aliens and Nationality 1 2013-01-01 2013-01-01 false Requirements for biometric identifiers from... Requirements for biometric identifiers from aliens on departure from the United States. (a)(1) The Secretary of... of entry, to provide fingerprints, photograph(s) or other specified biometric identifiers...

  4. 46 CFR 183.200 - General design, installation, and maintenance requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 7 2012-10-01 2012-10-01 false General design, installation, and maintenance requirements. 183.200 Section 183.200 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) ELECTRICAL INSTALLATION General Requirements § 183.200 General design, installation, and maintenance...

  5. 46 CFR 183.200 - General design, installation, and maintenance requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 7 2010-10-01 2010-10-01 false General design, installation, and maintenance requirements. 183.200 Section 183.200 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) ELECTRICAL INSTALLATION General Requirements § 183.200 General design, installation, and maintenance...

  6. 46 CFR 183.200 - General design, installation, and maintenance requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 7 2013-10-01 2013-10-01 false General design, installation, and maintenance requirements. 183.200 Section 183.200 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) ELECTRICAL INSTALLATION General Requirements § 183.200 General design, installation, and maintenance...

  7. 46 CFR 183.200 - General design, installation, and maintenance requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 7 2014-10-01 2014-10-01 false General design, installation, and maintenance requirements. 183.200 Section 183.200 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) ELECTRICAL INSTALLATION General Requirements § 183.200 General design, installation, and maintenance...

  8. 46 CFR 160.066-5 - Design, construction, and manufacturing requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 6 2010-10-01 2010-10-01 false Design, construction, and manufacturing requirements... Boats, Red Aerial Pyrotechnic Flare § 160.066-5 Design, construction, and manufacturing requirements. (a... details occurs; (2) Any change in sources of raw materials occurs; (3) Production is started on a new...

  9. Intelligent redundant actuation system requirements and preliminary system design

    NASA Technical Reports Server (NTRS)

    Defeo, P.; Geiger, L. J.; Harris, J.

    1985-01-01

    Several redundant actuation system configurations were designed and demonstrated to satisfy the stringent operational requirements of advanced flight control systems. However, this has been accomplished largely through brute force hardware redundancy, resulting in significantly increased computational requirements on the flight control computers which perform the failure analysis and reconfiguration management. Modern technology now provides powerful, low-cost microprocessors which are effective in performing failure isolation and configuration management at the local actuator level. One such concept, called an Intelligent Redundant Actuation System (IRAS), significantly reduces the flight control computer requirements and performs the local tasks more comprehensively than previously feasible. The requirements and preliminary design of an experimental laboratory system capable of demonstrating the concept and sufficiently flexible to explore a variety of configurations are discussed.

  10. Efficient logistic regression designs under an imperfect population identifier.

    PubMed

    Albert, Paul S; Liu, Aiyi; Nansel, Tonja

    2014-03-01

    Motivated by actual study designs, this article considers efficient logistic regression designs where the population is identified with a binary test that is subject to diagnostic error. We consider the case where the imperfect test is obtained on all participants, while the gold standard test is measured on a small chosen subsample. Under maximum-likelihood estimation, we evaluate the optimal design in terms of sample selection as well as verification. We show that there may be substantial efficiency gains by choosing a small percentage of individuals who test negative on the imperfect test for inclusion in the sample (e.g., verifying 90% test-positive cases). We also show that a two-stage design may be a good practical alternative to a fixed design in some situations. Under optimal and nearly optimal designs, we compare maximum-likelihood and semi-parametric efficient estimators under correct and misspecified models with simulations. The methodology is illustrated with an analysis from a diabetes behavioral intervention trial. © 2013, The International Biometric Society.

  11. A Design Rationale Capture Tool to Support Design Verification and Re-use

    NASA Technical Reports Server (NTRS)

    Hooey, Becky Lee; Da Silva, Jonny C.; Foyle, David C.

    2012-01-01

    A design rationale tool (DR tool) was developed to capture design knowledge to support design verification and design knowledge re-use. The design rationale tool captures design drivers and requirements, and documents the design solution including: intent (why it is included in the overall design); features (why it is designed the way it is); information about how the design components support design drivers and requirements; and, design alternatives considered but rejected. For design verification purposes, the tool identifies how specific design requirements were met and instantiated within the final design, and which requirements have not been met. To support design re-use, the tool identifies which design decisions are affected when design drivers and requirements are modified. To validate the design tool, the design knowledge from the Taxiway Navigation and Situation Awareness (T-NASA; Foyle et al., 1996) system was captured and the DR tool was exercised to demonstrate its utility for validation and re-use.

  12. Export Control Requirements for Tritium Processing Design and R&D

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

    Hollis, William Kirk; Maynard, Sarah-Jane Wadsworth

    This document will address requirements of export control associated with tritium plant design and processes. Los Alamos National Laboratory has been working in the area of tritium plant system design and research and development (R&D) since the early 1970’s at the Tritium Systems Test Assembly (TSTA). This work has continued to the current date with projects associated with the ITER project and other Office of Science Fusion Energy Science (OS-FES) funded programs. ITER is currently the highest funding area for the DOE OS-FES. Although export control issues have been integrated into these projects in the past a general guidance documentmore » has not been available for reference in this area. To address concerns with currently funded tritium plant programs and assist future projects for FES, this document will identify the key reference documents and specific sections within related to tritium research. Guidance as to the application of these sections will be discussed with specific detail to publications and work with foreign nationals.« less

  13. Export Control Requirements for Tritium Processing Design and R&D

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

    Hollis, William Kirk; Maynard, Sarah-Jane Wadsworth

    2015-10-30

    This document will address requirements of export control associated with tritium plant design and processes. Los Alamos National Laboratory has been working in the area of tritium plant system design and research and development (R&D) since the early 1970’s at the Tritium Systems Test Assembly (TSTA). This work has continued to the current date with projects associated with the ITER project and other Office of Science Fusion Energy Science (OS-FES) funded programs. ITER is currently the highest funding area for the DOE OS-FES. Although export control issues have been integrated into these projects in the past a general guidance documentmore » has not been available for reference in this area. To address concerns with currently funded tritium plant programs and assist future projects for FES, this document will identify the key reference documents and specific sections within related to tritium research. Guidance as to the application of these sections will be discussed with specific detail to publications and work with foreign nationals.« less

  14. An Optimization-Based Approach to Determine Requirements and Aircraft Design under Multi-domain Uncertainties

    NASA Astrophysics Data System (ADS)

    Govindaraju, Parithi

    Determining the optimal requirements for and design variable values of new systems, which operate along with existing systems to provide a set of overarching capabilities, as a single task is challenging due to the highly interconnected effects that setting requirements on a new system's design can have on how an operator uses this newly designed system. This task of determining the requirements and the design variable values becomes even more difficult because of the presence of uncertainties in the new system design and in the operational environment. This research proposed and investigated aspects of a framework that generates optimum design requirements of new, yet-to-be-designed systems that, when operating alongside other systems, will optimize fleet-level objectives while considering the effects of various uncertainties. Specifically, this research effort addresses the issues of uncertainty in the design of the new system through reliability-based design optimization methods, and uncertainty in the operations of the fleet through descriptive sampling methods and robust optimization formulations. In this context, fleet-level performance metrics result from using the new system alongside other systems to accomplish an overarching objective or mission. This approach treats the design requirements of a new system as decision variables in an optimization problem formulation that a user in the position of making an acquisition decision could solve. This solution would indicate the best new system requirements-and an associated description of the best possible design variable variables for that new system-to optimize the fleet level performance metric(s). Using a problem motivated by recorded operations of the United States Air Force Air Mobility Command for illustration, the approach is demonstrated first for a simplified problem that only considers demand uncertainties in the service network and the proposed methodology is used to identify the optimal design

  15. Sortie laboratory, phase B technical summary. [design and operational requirements

    NASA Technical Reports Server (NTRS)

    1973-01-01

    The design and operational requirements which evolved from Sortie Lab (SL) analysis are summarized. A source of requirements for systems is given along with experimental support for the SL, baseline. Basic design data covered include: configuration definition, mission analysis, experimental integration, safety, and logistics. A technical summary outlines characteristics which reflect the influence of the growth in SL capability and the results of the mission and operational analysis. Each of the selected areas is described in terms of objectives, equipment, operational concept, and support requirements.

  16. Strategies to design clinical studies to identify predictive biomarkers in cancer research.

    PubMed

    Perez-Gracia, Jose Luis; Sanmamed, Miguel F; Bosch, Ana; Patiño-Garcia, Ana; Schalper, Kurt A; Segura, Victor; Bellmunt, Joaquim; Tabernero, Josep; Sweeney, Christopher J; Choueiri, Toni K; Martín, Miguel; Fusco, Juan Pablo; Rodriguez-Ruiz, Maria Esperanza; Calvo, Alfonso; Prior, Celia; Paz-Ares, Luis; Pio, Ruben; Gonzalez-Billalabeitia, Enrique; Gonzalez Hernandez, Alvaro; Páez, David; Piulats, Jose María; Gurpide, Alfonso; Andueza, Mapi; de Velasco, Guillermo; Pazo, Roberto; Grande, Enrique; Nicolas, Pilar; Abad-Santos, Francisco; Garcia-Donas, Jesus; Castellano, Daniel; Pajares, María J; Suarez, Cristina; Colomer, Ramon; Montuenga, Luis M; Melero, Ignacio

    2017-02-01

    The discovery of reliable biomarkers to predict efficacy and toxicity of anticancer drugs remains one of the key challenges in cancer research. Despite its relevance, no efficient study designs to identify promising candidate biomarkers have been established. This has led to the proliferation of a myriad of exploratory studies using dissimilar strategies, most of which fail to identify any promising targets and are seldom validated. The lack of a proper methodology also determines that many anti-cancer drugs are developed below their potential, due to failure to identify predictive biomarkers. While some drugs will be systematically administered to many patients who will not benefit from them, leading to unnecessary toxicities and costs, others will never reach registration due to our inability to identify the specific patient population in which they are active. Despite these drawbacks, a limited number of outstanding predictive biomarkers have been successfully identified and validated, and have changed the standard practice of oncology. In this manuscript, a multidisciplinary panel reviews how those key biomarkers were identified and, based on those experiences, proposes a methodological framework-the DESIGN guidelines-to standardize the clinical design of biomarker identification studies and to develop future research in this pivotal field. Copyright © 2017 The Authors. Published by Elsevier Ltd.. All rights reserved.

  17. Distributed design approach in persistent identifiers systems

    NASA Astrophysics Data System (ADS)

    Golodoniuc, Pavel; Car, Nicholas; Klump, Jens

    2017-04-01

    The need to identify both digital and physical objects is ubiquitous in our society. Past and present persistent identifier (PID) systems, of which there is a great variety in terms of technical and social implementations, have evolved with the advent of the Internet, which has allowed for globally unique and globally resolvable identifiers. PID systems have catered for identifier uniqueness, integrity, persistence, and trustworthiness, regardless of the identifier's application domain, the scope of which has expanded significantly in the past two decades. Since many PID systems have been largely conceived and developed by small communities, or even a single organisation, they have faced challenges in gaining widespread adoption and, most importantly, the ability to survive change of technology. This has left a legacy of identifiers that still exist and are being used but which have lost their resolution service. We believe that one of the causes of once successful PID systems fading is their reliance on a centralised technical infrastructure or a governing authority. Golodoniuc et al. (2016) proposed an approach to the development of PID systems that combines the use of (a) the Handle system, as a distributed system for the registration and first-degree resolution of persistent identifiers, and (b) the PID Service (Golodoniuc et al., 2015), to enable fine-grained resolution to different information object representations. The proposed approach solved the problem of guaranteed first-degree resolution of identifiers, but left fine-grained resolution and information delivery under the control of a single authoritative source, posing risk to the long-term availability of information resources. Herein, we develop these approaches further and explore the potential of large-scale decentralisation at all levels: (i) persistent identifiers and information resources registration; (ii) identifier resolution; and (iii) data delivery. To achieve large-scale decentralisation

  18. Space Vehicle Terrestrial Environment Design Requirements Guidelines

    NASA Technical Reports Server (NTRS)

    Johnson, Dale L.; Keller, Vernon W.; Vaughan, William W.

    2006-01-01

    The terrestrial environment is an important driver of space vehicle structural, control, and thermal system design. NASA is currently in the process of producing an update to an earlier Terrestrial Environment Guidelines for Aerospace Vehicle Design and Development Handbook. This paper addresses the contents of this updated handbook, with special emphasis on new material being included in the areas of atmospheric thermodynamic models, wind dynamics, atmospheric composition, atmospheric electricity, cloud phenomena, atmospheric extremes, and sea state. In addition, the respective engineering design elements are discussed relative to terrestrial environment inputs that require consideration. Specific lessons learned that have contributed to the advancements made in the application and awareness of terrestrial environment inputs for aerospace engineering applications are presented.

  19. Development of Integrated Programs for Aerospace-Vehicle Design (IPAD) - IPAD user requirements

    NASA Technical Reports Server (NTRS)

    Anderton, G. L.

    1979-01-01

    Results of a requirements analysis task for Integrated Programs for Aerospace Vehicle Design (IPAD) are presented. User requirements which, in part, will shape the IPAD system design are given. Requirements considered were: generation, modification, storage, retrieval, communication, reporting, and protection of information. Data manipulation and controls on the system and the information were also considered. Specific needs relative to the product design process are also discussed.

  20. Innovative Product Design Based on Comprehensive Customer Requirements of Different Cognitive Levels

    PubMed Central

    Zhao, Wu; Zheng, Yake; Wang, Rui; Wang, Chen

    2014-01-01

    To improve customer satisfaction in innovative product design, a topology structure of customer requirements is established and an innovative product approach is proposed. The topology structure provides designers with reasonable guidance to capture the customer requirements comprehensively. With the aid of analytic hierarchy process (AHP), the importance of the customer requirements is evaluated. Quality function deployment (QFD) is used to translate customer requirements into product and process design demands and pick out the technical requirements which need urgent improvement. In this way, the product is developed in a more targeted way to satisfy the customers. the theory of innovative problems solving (TRIZ) is used to help designers to produce innovative solutions. Finally, a case study of automobile steering system is used to illustrate the application of the proposed approach. PMID:25013862

  1. Innovative product design based on comprehensive customer requirements of different cognitive levels.

    PubMed

    Li, Xiaolong; Zhao, Wu; Zheng, Yake; Wang, Rui; Wang, Chen

    2014-01-01

    To improve customer satisfaction in innovative product design, a topology structure of customer requirements is established and an innovative product approach is proposed. The topology structure provides designers with reasonable guidance to capture the customer requirements comprehensively. With the aid of analytic hierarchy process (AHP), the importance of the customer requirements is evaluated. Quality function deployment (QFD) is used to translate customer requirements into product and process design demands and pick out the technical requirements which need urgent improvement. In this way, the product is developed in a more targeted way to satisfy the customers. the theory of innovative problems solving (TRIZ) is used to help designers to produce innovative solutions. Finally, a case study of automobile steering system is used to illustrate the application of the proposed approach.

  2. 40 CFR 165.85 - Design and capacity requirements for new structures.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... containment structures: (1) You must protect appurtenances and pesticide containers against damage from... stationary containers of liquid pesticides, what are the specific design requirements? You must either anchor... 40 Protection of Environment 24 2011-07-01 2011-07-01 false Design and capacity requirements for...

  3. 40 CFR 165.85 - Design and capacity requirements for new structures.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... containment structures: (1) You must protect appurtenances and pesticide containers against damage from... stationary containers of liquid pesticides, what are the specific design requirements? You must either anchor... 40 Protection of Environment 25 2013-07-01 2013-07-01 false Design and capacity requirements for...

  4. 40 CFR 165.85 - Design and capacity requirements for new structures.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... containment structures: (1) You must protect appurtenances and pesticide containers against damage from... stationary containers of liquid pesticides, what are the specific design requirements? You must either anchor... 40 Protection of Environment 24 2014-07-01 2014-07-01 false Design and capacity requirements for...

  5. 40 CFR 165.85 - Design and capacity requirements for new structures.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... containment structures: (1) You must protect appurtenances and pesticide containers against damage from... stationary containers of liquid pesticides, what are the specific design requirements? You must either anchor... 40 Protection of Environment 25 2012-07-01 2012-07-01 false Design and capacity requirements for...

  6. Design and Requirements Creep In A Build-To-Print Mission

    NASA Technical Reports Server (NTRS)

    Peabody, Sharon A.; Otero, Veronica

    2017-01-01

    Build-to-Print designs, or rebuilds of flight proven designs, are attractive to mission stakeholders, as they give the appearance of minimal engineering development cost, risk, and schedule. The reality is that seldom is a project an exact duplicate of a predecessor. Mission reclassification, improvements in hardware, and science objective changes can all serve as a source of requirements and design creep and have ramifications often not fully anticipated during initial proposals. The Thermal Infrared Sensor Instrument (TIRS) was a late addition to the LandSat-8 program to provide infrared imaging to measure evapotranspiration for water cycle management. To meet the launch requirements for LandSat-8, instrument design life requirements were relaxed, the sensor development expedited, and technology development was minimized. Consequently, TIRS was designed as a higher risk instrument, with less redundancy than an instrument critical to mission success. After the successful LandSat-8 launch in 2013 and instrument performance, a rebuild of the instrument for the next LandSat spacecraft was included in the baseline mission success criteria. This paper discusses the technical challenges encountered during the rebuild of the TIRS-2 (Thermal Infrared Sensor 2) instrument and the resultant impacts on the thermal system design.

  7. 40 CFR 165.85 - Design and capacity requirements for new structures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Design and capacity requirements for... Structures § 165.85 Design and capacity requirements for new structures. (a) For all new containment... containment structure: (1) The containment structure must be constructed of steel, reinforced concrete or...

  8. 21 CFR 111.355 - What are the design requirements for manufacturing operations?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 21 Food and Drugs 2 2010-04-01 2010-04-01 false What are the design requirements for manufacturing... MANUFACTURING, PACKAGING, LABELING, OR HOLDING OPERATIONS FOR DIETARY SUPPLEMENTS Production and Process Control System: Requirements for Manufacturing Operations § 111.355 What are the design requirements for...

  9. Design requirements for plasma facing materials in ITER

    NASA Astrophysics Data System (ADS)

    Matera, R.; Federici, G.; ITER Joint Central Team

    1996-10-01

    After the official approval of the Interim Design Report, the ITER project enters the final phase of the EDA. With the definition of the design requirements of the high heat flux components, the structural and armor materials' working domain is better specified, allowing to focus the R & D program on the most critical issues and to orient the design of divertor and first wall components towards those concepts which potentially have a better chance to withstand normal and off-normal operating conditions. Among the latter, slow, high-power, high recycling transient are at present driving the design of high heat flux components. Examples of possible design solution under experimental validation in the R & D program are presented and discussed in this paper.

  10. 40 CFR 165.87 - Design and capacity requirements for existing structures.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 23 2010-07-01 2010-07-01 false Design and capacity requirements for... Structures § 165.87 Design and capacity requirements for existing structures. (a) For all existing... concrete or other rigid material capable of withstanding the full hydrostatic head, load and impact of any...

  11. The Body of Knowledge & Content Framework. Identifying the Important Knowledge Required for Productive Performance of a Plastics Machine Operator. Blow Molding, Extrusion, Injection Molding, Thermoforming.

    ERIC Educational Resources Information Center

    Society of the Plastics Industry, Inc., Washington, DC.

    Designed to guide training and curriculum development to prepare machine operators for the national certification exam, this publication identifies the important knowledge required for productive performance by a plastics machine operator. Introductory material discusses the rationale for a national standard, uses of the Body of Knowledge,…

  12. Identifying Indicators Related to Constructs for Engineering Design Outcome

    ERIC Educational Resources Information Center

    Wilhelmsen, Cheryl A.; Dixon, Raymond A.

    2016-01-01

    This study ranked constructs articulated by Childress and Rhodes (2008) and identified the key indicators for each construct as a starting point to explore what should be included on an instrument to measure the engineering design process and outcomes of students in high schools that use the PLTW and EbDTM curricula in Idaho. A case-study design…

  13. 14 CFR 33.201 - Design and test requirements for Early ETOPS eligibility.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 1 2014-01-01 2014-01-01 false Design and test requirements for Early... Aircraft Engines § 33.201 Design and test requirements for Early ETOPS eligibility. An applicant seeking type design approval for an engine to be installed on a two-engine airplane approved for ETOPS without...

  14. 29 CFR 1910.36 - Design and construction requirements for exit routes.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 29 Labor 5 2011-07-01 2011-07-01 false Design and construction requirements for exit routes. 1910.36 Section 1910.36 Labor Regulations Relating to Labor (Continued) OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR OCCUPATIONAL SAFETY AND HEALTH STANDARDS Means of Egress § 1910.36 Design and construction requirements for exit...

  15. 17 CFR 45.5 - Unique swap identifiers.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... transmit a unique swap identifier as provided in paragraphs (a)(1) and (2) of this section. (1) Creation... prior to the reporting of required swap creation data. The unique swap identifier shall consist of a... execution facility or designated contract market with respect to unique swap identifier creation; and (ii...

  16. 17 CFR 45.5 - Unique swap identifiers.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... transmit a unique swap identifier as provided in paragraphs (a)(1) and (2) of this section. (1) Creation... prior to the reporting of required swap creation data. The unique swap identifier shall consist of a... execution facility or designated contract market with respect to unique swap identifier creation; and (ii...

  17. 17 CFR 45.5 - Unique swap identifiers.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... transmit a unique swap identifier as provided in paragraphs (a)(1) and (2) of this section. (1) Creation... prior to the reporting of required swap creation data. The unique swap identifier shall consist of a... execution facility or designated contract market with respect to unique swap identifier creation; and (ii...

  18. 23 CFR 636.105 - Is the FHWA requiring the use of design-build?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 23 Highways 1 2011-04-01 2011-04-01 false Is the FHWA requiring the use of design-build? 636.105 Section 636.105 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING General § 636.105 Is the FHWA requiring the use of design-build? No, the FHWA is neither requiring nor...

  19. 30 CFR 250.908 - What are the minimum structural fatigue design requirements?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false What are the minimum structural fatigue design... Platform Approval Program § 250.908 What are the minimum structural fatigue design requirements? (a) API RP... (incorporated by reference as specified in 30 CFR 250.198), requires that the design fatigue life of each joint...

  20. 7 CFR 70.56 - Grading requirements of poultry and rabbits identified with official identification.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 3 2011-01-01 2011-01-01 false Grading requirements of poultry and rabbits identified... AND THE EGG PRODUCTS INSPECTION ACT (CONTINUED) VOLUNTARY GRADING OF POULTRY PRODUCTS AND RABBIT PRODUCTS Grading of Poultry Products and Rabbit Products Identifying and Marking Products § 70.56 Grading...

  1. 7 CFR 70.56 - Grading requirements of poultry and rabbits identified with official identification.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Grading requirements of poultry and rabbits identified... AND THE EGG PRODUCTS INSPECTION ACT (CONTINUED) VOLUNTARY GRADING OF POULTRY PRODUCTS AND RABBIT PRODUCTS Grading of Poultry Products and Rabbit Products Identifying and Marking Products § 70.56 Grading...

  2. Impact of science objectives and requirements on probe mission and system design

    NASA Technical Reports Server (NTRS)

    Ledbetter, K. W.

    1974-01-01

    Problem areas in probe science technology are discussed that require a solution before probe systems can actually be designed. Considered are the effects of the model atmospheres on probe design; secondly, the effects of implementing the requirements to locate and measure the clouds and, trade-offs between descent sampling and measurement criteria as they affect probe system design.

  3. The design of an insulin pump - preliminary requirements (a technical note)

    NASA Astrophysics Data System (ADS)

    Hawlas, Hubert J.; Lewenstein, Krzysztof

    2009-01-01

    The material presented in this paper is an attempt to lay down requirements for the planned design of an insulin pump. An insulin pump is a device for continuous dosage of insulin at a selected rate, which facilitates treatment and improves the lives of diabetic patients. This paper is a compilation of medical requirements and user suggestions of presently offered insulin pumps. It seems important to establish proper requirements for a device before starting developing any design for an insulin pump.

  4. Teaching Case: IS Security Requirements Identification from Conceptual Models in Systems Analysis and Design: The Fun & Fitness, Inc. Case

    ERIC Educational Resources Information Center

    Spears, Janine L.; Parrish, James L., Jr.

    2013-01-01

    This teaching case introduces students to a relatively simple approach to identifying and documenting security requirements within conceptual models that are commonly taught in systems analysis and design courses. An introduction to information security is provided, followed by a classroom example of a fictitious company, "Fun &…

  5. 7 CFR 56.40 - Grading requirements of shell eggs identified with grademarks.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false Grading requirements of shell eggs identified with... (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG PRODUCTS INSPECTION ACT (CONTINUED) VOLUNTARY GRADING OF SHELL EGGS Grading of Shell Eggs Prerequisites to Packaging...

  6. 7 CFR 56.40 - Grading requirements of shell eggs identified with grademarks.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 3 2011-01-01 2011-01-01 false Grading requirements of shell eggs identified with... (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG PRODUCTS INSPECTION ACT (CONTINUED) VOLUNTARY GRADING OF SHELL EGGS Grading of Shell Eggs Prerequisites to Packaging...

  7. Space tug point design study. Volume 2: Operations, performance and requirements

    NASA Technical Reports Server (NTRS)

    1973-01-01

    A design study to determine the configuration and characteristics of a space tug was conducted. Among the subjects analyzed in the study are: (1) flight and ground operations, (2) vehicle flight performance and performance enhancement techniques, (3) flight requirements, (4) basic design criteria, and (5) functional and procedural interface requirements between the tug and other systems.

  8. 47 CFR 54.209 - Annual reporting requirements for designated eligible telecommunications carriers.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 3 2010-10-01 2010-10-01 false Annual reporting requirements for designated eligible telecommunications carriers. 54.209 Section 54.209 Telecommunication FEDERAL COMMUNICATIONS... Service Support § 54.209 Annual reporting requirements for designated eligible telecommunications carriers...

  9. 47 CFR 54.209 - Annual reporting requirements for designated eligible telecommunications carriers.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 3 2011-10-01 2011-10-01 false Annual reporting requirements for designated eligible telecommunications carriers. 54.209 Section 54.209 Telecommunication FEDERAL COMMUNICATIONS... Service Support § 54.209 Annual reporting requirements for designated eligible telecommunications carriers...

  10. Identifying Skill Requirements for GIS Positions: A Content Analysis of Job Advertisements

    ERIC Educational Resources Information Center

    Hong, Jung Eun

    2016-01-01

    This study identifies the skill requirements for geographic information system (GIS) positions, including GIS analysts, programmers/developers/engineers, specialists, and technicians, through a content analysis of 946 GIS job advertisements from 2007-2014. The results indicated that GIS job applicants need to possess high levels of GIS analysis…

  11. 40 CFR 141.723 - Requirements to respond to significant deficiencies identified in sanitary surveys performed by EPA.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... deficiencies identified in sanitary surveys performed by EPA. 141.723 Section 141.723 Protection of Environment... REGULATIONS Enhanced Treatment for Cryptosporidium Requirements for Sanitary Surveys Performed by Epa § 141.723 Requirements to respond to significant deficiencies identified in sanitary surveys performed by...

  12. 40 CFR 141.723 - Requirements to respond to significant deficiencies identified in sanitary surveys performed by EPA.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... deficiencies identified in sanitary surveys performed by EPA. 141.723 Section 141.723 Protection of Environment... REGULATIONS Enhanced Treatment for Cryptosporidium Requirements for Sanitary Surveys Performed by Epa § 141.723 Requirements to respond to significant deficiencies identified in sanitary surveys performed by...

  13. 40 CFR 141.723 - Requirements to respond to significant deficiencies identified in sanitary surveys performed by EPA.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... deficiencies identified in sanitary surveys performed by EPA. 141.723 Section 141.723 Protection of Environment... REGULATIONS Enhanced Treatment for Cryptosporidium Requirements for Sanitary Surveys Performed by Epa § 141.723 Requirements to respond to significant deficiencies identified in sanitary surveys performed by...

  14. 40 CFR 141.723 - Requirements to respond to significant deficiencies identified in sanitary surveys performed by EPA.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... deficiencies identified in sanitary surveys performed by EPA. 141.723 Section 141.723 Protection of Environment... REGULATIONS Enhanced Treatment for Cryptosporidium Requirements for Sanitary Surveys Performed by Epa § 141.723 Requirements to respond to significant deficiencies identified in sanitary surveys performed by...

  15. 40 CFR 141.723 - Requirements to respond to significant deficiencies identified in sanitary surveys performed by EPA.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... deficiencies identified in sanitary surveys performed by EPA. 141.723 Section 141.723 Protection of Environment... REGULATIONS Enhanced Treatment for Cryptosporidium Requirements for Sanitary Surveys Performed by Epa § 141.723 Requirements to respond to significant deficiencies identified in sanitary surveys performed by...

  16. Applying Monte Carlo Simulation to Launch Vehicle Design and Requirements Verification

    NASA Technical Reports Server (NTRS)

    Hanson, John M.; Beard, Bernard B.

    2010-01-01

    This paper is focused on applying Monte Carlo simulation to probabilistic launch vehicle design and requirements verification. The approaches developed in this paper can be applied to other complex design efforts as well. Typically the verification must show that requirement "x" is met for at least "y" % of cases, with, say, 10% consumer risk or 90% confidence. Two particular aspects of making these runs for requirements verification will be explored in this paper. First, there are several types of uncertainties that should be handled in different ways, depending on when they become known (or not). The paper describes how to handle different types of uncertainties and how to develop vehicle models that can be used to examine their characteristics. This includes items that are not known exactly during the design phase but that will be known for each assembled vehicle (can be used to determine the payload capability and overall behavior of that vehicle), other items that become known before or on flight day (can be used for flight day trajectory design and go/no go decision), and items that remain unknown on flight day. Second, this paper explains a method (order statistics) for determining whether certain probabilistic requirements are met or not and enables the user to determine how many Monte Carlo samples are required. Order statistics is not new, but may not be known in general to the GN&C community. The methods also apply to determining the design values of parameters of interest in driving the vehicle design. The paper briefly discusses when it is desirable to fit a distribution to the experimental Monte Carlo results rather than using order statistics.

  17. Design requirements for radiology workstations.

    PubMed

    Moise, Adrian; Atkins, M Stella

    2004-06-01

    This article stresses the importance of capturing feedback from representative users in the early stages of product development. We present our solution to producing quality requirement specifications for radiology workstations, specifications that remain valid over time because we successfully anticipated the industry trends and the user's needs. We present the results from a user study performed in December 1999 in a radiology clinic equipped with state-of-the-art Picture Archiving and Communications Systems (PACS) and imaging scanners. The study involved eight radiologists who answered questions and provided comments on three complementary research topics. First, we asked our subjects to enumerate the advantages and the disadvantages for both softcopy and hardcopy reading. We identified the two major factors for productivity improvement through the use of PACS workstations: workflow re-engineering and process automation. Second, we collected radiologist feedback on the use of hanging protocols (HPs). The results indicated the high importance of automatic image organization through HPs, with the potential effect of reducing the interpretation time by 10-20%. Our subjects estimated that 10-15 HPs would cover about 85%-95% of the regular radiological examinations. Third, we investigated the impact of the display devices on the radiologist's workflow. Our results indicated that the number and the properties of the monitors is a modality-specific requirement. The main results from this study on key functional requirements for softcopy interpretation only recently were incorporated in most of the current, successful PACS workstations.

  18. Quasi-experimental study designs series-paper 8: identifying quasi-experimental studies to inform systematic reviews.

    PubMed

    Glanville, Julie; Eyers, John; Jones, Andrew M; Shemilt, Ian; Wang, Grace; Johansen, Marit; Fiander, Michelle; Rothstein, Hannah

    2017-09-01

    This article reviews the available evidence and guidance on methods to identify reports of quasi-experimental (QE) studies to inform systematic reviews of health care, public health, international development, education, crime and justice, and social welfare. Research, guidance, and examples of search strategies were identified by searching a range of databases, key guidance documents, selected reviews, conference proceedings, and personal communication. Current practice and research evidence were summarized. Four thousand nine hundred twenty-four records were retrieved by database searches, and additional documents were obtained by other searches. QE studies are challenging to identify efficiently because they have no standardized nomenclature and may be indexed in various ways. Reliable search filters are not available. There is a lack of specific resources devoted to collecting QE studies and little evidence on where best to search. Searches to identify QE studies should search a range of resources and, until indexing improves, use strategies that focus on the topic rather than the study design. Better definitions, better indexing in databases, prospective registers, and reporting guidance are required to improve the retrieval of QE studies and promote systematic reviews of what works based on the evidence from such studies. Copyright © 2017 Elsevier Inc. All rights reserved.

  19. Distributed watershed modeling of design storms to identify nonpoint source loading areas

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

    Endreny, T.A.; Wood, E.F.

    1999-03-01

    Watershed areas that generate nonpoint source (NPS) polluted runoff need to be identified prior to the design of basin-wide water quality projects. Current watershed-scale NPS models lack a variable source area (VSA) hydrology routine, and are therefore unable to identify spatially dynamic runoff zones. The TOPLATS model used a watertable-driven VSA hydrology routine to identify runoff zones in a 17.5 km{sup 2} agricultural watershed in central Oklahoma. Runoff areas were identified in a static modeling framework as a function of prestorm watertable depth and also in a dynamic modeling framework by simulating basin response to 2, 10, and 25 yrmore » return period 6 h design storms. Variable source area expansion occurred throughout the duration of each 6 h storm and total runoff area increased with design storm intensity. Basin-average runoff rates of 1 mm h{sup {minus}1} provided little insight into runoff extremes while the spatially distributed analysis identified saturation excess zones with runoff rates equaling effective precipitation. The intersection of agricultural landcover areas with these saturation excess runoff zones targeted the priority potential NPS runoff zones that should be validated with field visits. These intersected areas, labeled as potential NPS runoff zones, were mapped within the watershed to demonstrate spatial analysis options available in TOPLATS for managing complex distributions of watershed runoff. TOPLATS concepts in spatial saturation excess runoff modelling should be incorporated into NPS management models.« less

  20. 40 CFR 264.273 - Design and operating requirements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ....273 Section 264.273 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Land Treatment § 264.273 Design and operating requirements. The Regional Administrator will specify in...

  1. 40 CFR 264.273 - Design and operating requirements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ....273 Section 264.273 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Land Treatment § 264.273 Design and operating requirements. The Regional Administrator will specify in...

  2. 40 CFR 264.273 - Design and operating requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ....273 Section 264.273 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Land Treatment § 264.273 Design and operating requirements. The Regional Administrator will specify in...

  3. 40 CFR 264.273 - Design and operating requirements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ....273 Section 264.273 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Land Treatment § 264.273 Design and operating requirements. The Regional Administrator will specify in...

  4. 40 CFR 264.273 - Design and operating requirements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ....273 Section 264.273 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Land Treatment § 264.273 Design and operating requirements. The Regional Administrator will specify in...

  5. A screen to identify Drosophila genes required for integrin-mediated adhesion.

    PubMed Central

    Walsh, E P; Brown, N H

    1998-01-01

    Drosophila integrins have essential adhesive roles during development, including adhesion between the two wing surfaces. Most position-specific integrin mutations cause lethality, and clones of homozygous mutant cells in the wing do not adhere to the apposing surface, causing blisters. We have used FLP-FRT induced mitotic recombination to generate clones of randomly induced mutations in the F1 generation and screened for mutations that cause wing blisters. This phenotype is highly selective, since only 14 lethal complementation groups were identified in screens of the five major chromosome arms. Of the loci identified, 3 are PS integrin genes, 2 are blistered and bloated, and the remaining 9 appear to be newly characterized loci. All 11 nonintegrin loci are required on both sides of the wing, in contrast to integrin alpha subunit genes. Mutations in 8 loci only disrupt adhesion in the wing, similar to integrin mutations, while mutations in the 3 other loci cause additional wing defects. Mutations in 4 loci, like the strongest integrin mutations, cause a "tail-up" embryonic lethal phenotype, and mutant alleles of 1 of these loci strongly enhance an integrin mutation. Thus several of these loci are good candidates for genes encoding cytoplasmic proteins required for integrin function. PMID:9755209

  6. The use of fault reporting of medical equipment to identify latent design flaws.

    PubMed

    Flewwelling, C J; Easty, A C; Vicente, K J; Cafazzo, J A

    2014-10-01

    Poor device design that fails to adequately account for user needs, cognition, and behavior is often responsible for use errors resulting in adverse events. This poor device design is also often latent, and could be responsible for "No Fault Found" (NFF) reporting, in which medical devices sent for repair by clinical users are found to be operating as intended. Unresolved NFF reports may contribute to incident under reporting, clinical user frustration, and biomedical engineering technologist inefficacy. This study uses human factors engineering methods to investigate the relationship between NFF reporting frequency and device usability. An analysis of medical equipment maintenance data was conducted to identify devices with a high NFF reporting frequency. Subsequently, semi-structured interviews and heuristic evaluations were performed in order to identify potential usability issues. Finally, usability testing was conducted in order to validate that latent usability related design faults result in a higher frequency of NFF reporting. The analysis of medical equipment maintenance data identified six devices with a high NFF reporting frequency. Semi-structured interviews, heuristic evaluations and usability testing revealed that usability issues caused a significant portion of the NFF reports. Other factors suspected to contribute to increased NFF reporting include accessory issues, intermittent faults and environmental issues. Usability testing conducted on three of the devices revealed 23 latent usability related design faults. These findings demonstrate that latent usability related design faults manifest themselves as an increase in NFF reporting and that devices containing usability related design faults can be identified through an analysis of medical equipment maintenance data. Copyright © 2014 The Authors. Published by Elsevier Inc. All rights reserved.

  7. 40 CFR 265.254 - Design and operating requirements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ....254 Section 265.254 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SOLID WASTES (CONTINUED) INTERIM STATUS STANDARDS FOR OWNERS AND OPERATORS OF HAZARDOUS WASTE TREATMENT, STORAGE, AND DISPOSAL FACILITIES Waste Piles § 265.254 Design and operating requirements. The owner or operator of each...

  8. Functional requirements for design of the Space Ultrareliable Modular Computer (SUMC) system simulator

    NASA Technical Reports Server (NTRS)

    Curran, R. T.; Hornfeck, W. A.

    1972-01-01

    The functional requirements for the design of an interpretive simulator for the space ultrareliable modular computer (SUMC) are presented. A review of applicable existing computer simulations is included along with constraints on the SUMC simulator functional design. Input requirements, output requirements, and language requirements for the simulator are discussed in terms of a SUMC configuration which may vary according to the application.

  9. SAR data compression: Application, requirements, and designs

    NASA Technical Reports Server (NTRS)

    Curlander, John C.; Chang, C. Y.

    1991-01-01

    The feasibility of reducing data volume and data rate is evaluated for the Earth Observing System (EOS) Synthetic Aperture Radar (SAR). All elements of data stream from the sensor downlink data stream to electronic delivery of browse data products are explored. The factors influencing design of a data compression system are analyzed, including the signal data characteristics, the image quality requirements, and the throughput requirements. The conclusion is that little or no reduction can be achieved in the raw signal data using traditional data compression techniques (e.g., vector quantization, adaptive discrete cosine transform) due to the induced phase errors in the output image. However, after image formation, a number of techniques are effective for data compression.

  10. Cluster man/system design requirements and verification. [for Skylab program

    NASA Technical Reports Server (NTRS)

    Watters, H. H.

    1974-01-01

    Discussion of the procedures employed for determining the man/system requirements that guided Skylab design, and review of the techniques used for implementing the man/system design verification. The foremost lesson learned from the design need anticipation and design verification experience is the necessity to allow for human capabilities of in-flight maintenance and repair. It is now known that the entire program was salvaged by a series of unplanned maintenance and repair events which were implemented in spite of poor design provisions for maintenance.

  11. Flexibility Requirements concerning the Design of Synchronous E-Learning Systems

    ERIC Educational Resources Information Center

    Jahn, Matthias; Piesche, Claudia; Jablonski, Stefan

    2012-01-01

    Purpose: Today's requirements concerning successful learning support comprise a variety of application scenarios. Therefore, the development of supporting software preferably aims at modular design. This article discusses requirements regarding flexibility of e-learning systems and presents important principles, which should be met by successful…

  12. 33 CFR 126.17 - Permits required for handling designated dangerous cargo.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... designated dangerous cargo. 126.17 Section 126.17 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) WATERFRONT FACILITIES HANDLING OF DANGEROUS CARGO AT WATERFRONT FACILITIES § 126.17 Permits required for handling designated dangerous cargo. Designated dangerous cargo may be...

  13. 33 CFR 126.17 - Permits required for handling designated dangerous cargo.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... designated dangerous cargo. 126.17 Section 126.17 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) WATERFRONT FACILITIES HANDLING OF DANGEROUS CARGO AT WATERFRONT FACILITIES § 126.17 Permits required for handling designated dangerous cargo. Designated dangerous cargo may be...

  14. 33 CFR 126.17 - Permits required for handling designated dangerous cargo.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... designated dangerous cargo. 126.17 Section 126.17 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) WATERFRONT FACILITIES HANDLING OF DANGEROUS CARGO AT WATERFRONT FACILITIES § 126.17 Permits required for handling designated dangerous cargo. Designated dangerous cargo may be...

  15. 33 CFR 126.17 - Permits required for handling designated dangerous cargo.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... designated dangerous cargo. 126.17 Section 126.17 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) WATERFRONT FACILITIES HANDLING OF DANGEROUS CARGO AT WATERFRONT FACILITIES § 126.17 Permits required for handling designated dangerous cargo. Designated dangerous cargo may be...

  16. 33 CFR 126.17 - Permits required for handling designated dangerous cargo.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... designated dangerous cargo. 126.17 Section 126.17 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) WATERFRONT FACILITIES HANDLING OF DANGEROUS CARGO AT WATERFRONT FACILITIES § 126.17 Permits required for handling designated dangerous cargo. Designated dangerous cargo may be...

  17. 33 CFR 143.201 - Existing MODUs exempted from new design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... HOMELAND SECURITY (CONTINUED) OUTER CONTINENTAL SHELF ACTIVITIES DESIGN AND EQUIPMENT Mobile Offshore Drilling Units § 143.201 Existing MODUs exempted from new design requirements. Any mobile offshore drilling...

  18. Design requirements for rigid printed wiring boards and assemblies. NASA Handbook

    NASA Technical Reports Server (NTRS)

    1986-01-01

    The NASA requirements for assuring reliable rigid printed wiring board design are prescribed. Basic considerations necessary to assure reliable rigid printed wiring board design are described and incorporated.

  19. Unimodular sequence design under frequency hopping communication compatibility requirements

    NASA Astrophysics Data System (ADS)

    Ge, Peng; Cui, Guolong; Kong, Lingjiang; Yang, Jianyu

    2016-12-01

    The integrated design for both radar and anonymous communication has drawn more attention recently since wireless communication system appeals to enhance security and reliability. Given the frequency hopping (FH) communication system, an effective way to realize integrated design is to meet the spectrum compatibility between these two systems. The paper deals with a unimodular sequence design technique which considers optimizing both the spectrum compatibility and peak sidelobes levels (PSL) of auto-correlation function (ACF). The spectrum compatibility requirement realizes anonymous communication for the FH system and provides this system lower probability of intercept (LPI) since the spectrum of the FH system is hidden in that of the radar system. The proposed algorithm, named generalized fitting template (GFT) technique, converts the sequence optimization design problem to a iterative fitting process. In this process, the power spectrum density (PSD) and PSL behaviors of the generated sequences fit both PSD and PSL templates progressively. Two templates are established based on the spectrum compatibility requirement and the expected PSL. As noted, in order to ensure the communication security and reliability, spectrum compatibility requirement is given a higher priority to achieve in the GFT algorithm. This algorithm realizes this point by adjusting the weight adaptively between these two terms during the iteration process. The simulation results are analyzed in terms of bit error rate (BER), PSD, PSL, and signal-interference rate (SIR) for both the radar and FH systems. The performance of GFT is compared with SCAN, CAN, FRE, CYC, and MAT algorithms in the above aspects, which shows its good effectiveness.

  20. 40 CFR 80.219 - Designation and downstream requirements for GPA gasoline.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... requirements for GPA gasoline. 80.219 Section 80.219 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) REGULATION OF FUELS AND FUEL ADDITIVES Gasoline Sulfur Geographic Phase-in Program § 80.219 Designation and downstream requirements for GPA gasoline. The requirements and...

  1. 40 CFR 80.219 - Designation and downstream requirements for GPA gasoline.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... requirements for GPA gasoline. 80.219 Section 80.219 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) REGULATION OF FUELS AND FUEL ADDITIVES Gasoline Sulfur Geographic Phase-in Program § 80.219 Designation and downstream requirements for GPA gasoline. The requirements and...

  2. 40 CFR 80.219 - Designation and downstream requirements for GPA gasoline.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... requirements for GPA gasoline. 80.219 Section 80.219 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) REGULATION OF FUELS AND FUEL ADDITIVES Gasoline Sulfur Geographic Phase-in Program § 80.219 Designation and downstream requirements for GPA gasoline. The requirements and...

  3. 40 CFR 80.219 - Designation and downstream requirements for GPA gasoline.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... requirements for GPA gasoline. 80.219 Section 80.219 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) REGULATION OF FUELS AND FUEL ADDITIVES Gasoline Sulfur Geographic Phase-in Program § 80.219 Designation and downstream requirements for GPA gasoline. The requirements and...

  4. 40 CFR 80.219 - Designation and downstream requirements for GPA gasoline.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... requirements for GPA gasoline. 80.219 Section 80.219 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) REGULATION OF FUELS AND FUEL ADDITIVES Gasoline Sulfur Geographic Phase-in Program § 80.219 Designation and downstream requirements for GPA gasoline. The requirements and...

  5. Designs and Technology Requirements for Civil Heavy Lift Rotorcraft

    NASA Technical Reports Server (NTRS)

    Johnson, Wayne; Yamauchi, Gloria K.; Watts, Michael E.

    2006-01-01

    The NASA Heavy Lift Rotorcraft Systems Investigation examined in depth several rotorcraft configurations for large civil transport, designed to meet the technology goals of the NASA Vehicle Systems Program. The investigation identified the Large Civil Tiltrotor as the configuration with the best potential to meet the technology goals. The design presented was economically competitive, with the potential for substantial impact on the air transportation system. The keys to achieving a competitive aircraft were low drag airframe and low disk loading rotors; structural weight reduction, for both airframe and rotors; drive system weight reduction; improved engine efficiency; low maintenance design; and manufacturing cost comparable to fixed-wing aircraft. Risk reduction plans were developed to provide the strategic direction to support a heavy-lift rotorcraft development. The following high risk areas were identified for heavy lift rotorcraft: high torque, light weight drive system; high performance, structurally efficient rotor/wing system; low noise aircraft; and super-integrated vehicle management system.

  6. Identifying context-specific competencies required by community Australian Football sports trainers.

    PubMed

    Donaldson, Alex; Finch, Caroline F

    2012-08-01

    First-aid is a recommended injury prevention and risk management strategy in community sport; however, little is known about the sport-specific competencies required by first-aid providers. To achieve expert consensus on the competencies required by community Australian Football (community-AF) sports trainers. A three-round online Delphi process. Community-AF. 16 Australian sports first-aid and community-AF experts. Rating of competencies as either 'essential', 'expected', 'ideal' or 'not required'. Results After Round 3, 47 of the 77 (61%) competencies were endorsed as 'essential' or 'expected' for a sports trainer to effectively perform the activities required to the standards expected at a community-AF club by ≥75% of experts. These competencies covered: the role of the sports trainer; the responsibilities of the sports trainer; emergency management; injury and illness assessment and immediate management; taping; and injury prevention and risk management. Four competencies (5%) were endorsed as 'ideal' or 'not required' by ≥85% of experts and were excluded from further consideration. The 26 competencies where consensus was not reached were retained as second-tier, optional competencies. Sports trainers are important members of on-field first-aid teams, providing support to both injured players and other sports medicine professionals. The competencies identified in this study provide the basis of a proposed two-tiered community-AF-specific sports trainer education structure that can be implemented by the peak sports body. This includes six mandatory modules, relating to the 'required' competencies, and a further six optional modules covering competencies on which consensus was not reached.

  7. Wind/tornado design criteria, development to achieve required probabilistic performance goals

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

    Ng, D.S.

    1991-06-01

    This paper describes the strategy for developing new design criteria for a critical facility to withstand loading induced by the wind/tornado hazard. The proposed design requirements for resisting wind/tornado loads are based on probabilistic performance goals. The proposed design criteria were prepared by a Working Group consisting of six experts in wind/tornado engineering and meteorology. Utilizing their best technical knowledge and judgment in the wind/tornado field, they met and discussed the methodologies and reviewed available data. A review of the available wind/tornado hazard model for the site, structural response evaluation methods, and conservative acceptance criteria lead to proposed design criteriamore » that has a high probability of achieving the required performance goals.« less

  8. Wind/tornado design criteria, development to achieve required probabilistic performance goals

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

    Ng, D.S.

    This paper describes the strategy for developing new design criteria for a critical facility to withstand loading induced by the wind/tornado hazard. The proposed design requirements for resisting wind/tornado loads are based on probabilistic performance goals. The proposed design criteria were prepared by a Working Group consisting of six experts in wind/tornado engineering and meteorology. Utilizing their best technical knowledge and judgment in the wind/tornado field, they met and discussed the methodologies and reviewed available data. A review of the available wind/tornado hazard model for the site, structural response evaluation methods, and conservative acceptance criteria lead to proposed design criteriamore » that has a high probability of achieving the required performance goals.« less

  9. 40 CFR 265.254 - Design and operating requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... DISPOSAL FACILITIES Waste Piles § 265.254 Design and operating requirements. The owner or operator of each new waste pile on which construction commences after January 29, 1992, each lateral expansion of a waste pile unit on which construction commences after July 29, 1992, and each such replacement of an...

  10. Using simulation and virtual machines to identify information assurance requirements

    NASA Astrophysics Data System (ADS)

    Banks, Sheila B.; Stytz, Martin R.

    2010-04-01

    address the four requirements challenges outlined above. To address these issues, we developed a system architecture and acquisition approach designed to separate the system's IA capabilities requirements and development from the other system capability requirements; thereby, allowing the IA capabilities to be developed rapidly and assessed separately from the other system capabilities. Simulation environments and technologies allow us to test and evaluate solutions to the issues while also insuring that the system being tested and the solution are not exposed to real-world threats.

  11. Concepts, requirements, and design approaches for building successful planning and scheduling systems

    NASA Technical Reports Server (NTRS)

    Hornstein, Rhoda Shaller; Willoughby, John K.

    1991-01-01

    Traditional practice of systems engineering management assumes requirements can be precisely determined and unambiguously defined prior to system design and implementation; practice further assumes requirements are held static during implementation. Human-computer decision support systems for service planning and scheduling applications do not conform well to these assumptions. Adaptation to the traditional practice of systems engineering management are required. Basic technology exists to support these adaptations. Additional innovations must be encouraged and nutured. Continued partnership between the programmatic and technical perspective assures proper balance of the impossible with the possible. Past problems have the following origins: not recognizing the unusual and perverse nature of the requirements for planning and scheduling; not recognizing the best starting point assumptions for the design; not understanding the type of system that being built; and not understanding the design consequences of the operations concept selected.

  12. Requirements and Design Reference Mission for the WFIRST-AFTA Coronagraph Instrument

    NASA Technical Reports Server (NTRS)

    Demers, Richard T.; Dekens, Frank; Calvet, Rob; Chang, Zensheu; Effinger, Robert; Ek, Eric; Hovland, Larry; Jones, Laura; Loc, Anthony; Nemati, Bijan; hide

    2015-01-01

    The WFIRST-AFTA coronagraph instrument take s advantage of AFTA s 2.4 -meter aperture to provide novel exoplanet imaging science at approximately the same instrument cost as an Explorer mission. The AFTA coronagraph also matures direct imaging technologies to high TRL for an Exo-Earth Imager in the next decade. The coronagraph Design Reference Mission (DRM) optical design is based on the highly successful High Contrast Imaging Testbed (HCIT), with modifications to accommodate the AFTA telescope design, service-ability, volume constraints, and the addition of an Integral Field Spectrograph (IFS). In order to optimally satisfy the three science objectives of planet imaging, planet spectral characterization and dust debris imaging, the coronagraph is designed to operate in two different modes : Hybrid Lyot Coronagraph or Shaped Pupil Coronagraph. Active mechanisms change pupil masks, focal plane masks, yot masks, and bandpass filters to shift between modes. A single optical beam train can thus operate alternatively as two different coronagraph architecture s. Structural Thermal Optical Performance (STOP) analysis predict s the instrument contrast with the Low Order Wave Front Control loop closed. The STOP analysis was also used to verify that the optical/structural/thermal design provides the extreme stability required for planet characterization in the presence of thermal disturbances expected in a typical observing scenario. This paper describes the instrument design and the flow down from science requirements to high level engineering requirements.

  13. 46 CFR 161.010-2 - Design, construction, and test requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 6 2013-10-01 2013-10-01 false Design, construction, and test requirements. 161.010-2 Section 161.010-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Floating Electric Waterlight § 161.010-2 Design, construction, and test...

  14. 46 CFR 161.010-2 - Design, construction, and test requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 46 Shipping 6 2010-10-01 2010-10-01 false Design, construction, and test requirements. 161.010-2 Section 161.010-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Floating Electric Waterlight § 161.010-2 Design, construction, and test...

  15. 46 CFR 161.010-2 - Design, construction, and test requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 6 2014-10-01 2014-10-01 false Design, construction, and test requirements. 161.010-2 Section 161.010-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Floating Electric Waterlight § 161.010-2 Design, construction, and test...

  16. 46 CFR 161.010-2 - Design, construction, and test requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 6 2011-10-01 2011-10-01 false Design, construction, and test requirements. 161.010-2 Section 161.010-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL ELECTRICAL EQUIPMENT Floating Electric Waterlight § 161.010-2 Design, construction, and test...

  17. Data Requirements and the Basis for Designing Health Information Kiosks.

    PubMed

    Afzali, Mina; Ahmadi, Maryam; Mahmoudvand, Zahra

    2017-09-01

    Health kiosks are an innovative and cost-effective solution that organizations can easily implement to help educate people. To determine the data requirements and basis for designing health information kiosks as a new technology to maintain the health of society. By reviewing the literature, a list of information requirements was provided in 4 sections (demographic information, general information, diagnostic information and medical history), and questions related to the objectives, data elements, stakeholders, requirements, infrastructures and the applications of health information kiosks were provided. In order to determine the content validity of the designed set, the opinions of 2 physicians and 2 specialists in medical informatics were obtained. The test-retest method was used to measure its reliability. Data were analyzed using SPSS software. In the proposed model for Iran, 170 data elements in 6 sections were presented for experts' opinion, which ultimately, on 106 elements, a collective agreement was reached. To provide a model of health information kiosk, creating a standard data set is a critical point. According to a survey conducted on the various literature review studies related to the health information kiosk, the most important components of a health information kiosk include six categories; information needs, data elements, applications, stakeholders, requirements and infrastructure of health information kiosks that need to be considered when designing a health information kiosk.

  18. Evaluation of design ventilation requirements for enclosed parking facilities

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

    Ayari, A.; Krarti, M.

    2000-07-01

    This paper proposes a new design approach to determine the ventilation requirements for enclosed parking garages. The design approach accounts for various factors that affect the indoor air quality within a parking facility, including the average CO emission rate, the average travel time, the number of cars, and the acceptable CO level within the parking garage. This paper first describes the results of a parametric analysis based on the design method that was developed. Then the design method is presented to explain how the ventilation flow rate can be determined for any enclosed parking facility. Finally, some suggestions are proposedmore » to save fan energy for ventilating parking garages using demand ventilation control strategies.« less

  19. Generation III reactors safety requirements and the design solutions

    NASA Astrophysics Data System (ADS)

    Felten, P.

    2009-03-01

    Nuclear energy's public acceptance, and hence its development, depends on its safety. As a reactor designer, we will first briefly remind the basic safety principles of nuclear reactors' design. We will then show how the industry, and in particular Areva with its EPR, made design evolution in the wake of the Three Miles Island accident in 1979. In particular, for this new generation of reactors, severe accidents are taken into account beyond the standard design basis accidents. Today, Areva's EPR meets all so-called "generation III" safety requirements and was licensed by several nuclear safety authorities in the world. Many innovative solutions are integrated in the EPR, some of which will be introduced here.

  20. Data Collection for Mental Health Studies Through Digital Platforms: Requirements and Design of a Prototype

    PubMed Central

    Triana Hoyos, Ana Maria; Alakörkkö, Tuomas; Kaski, Kimmo; Saramäki, Jari; Isometsä, Erkki; Darst, Richard K

    2017-01-01

    Background Mental and behavioral disorders are the main cause of disability worldwide. However, their diagnosis is challenging due to a lack of reliable biomarkers; current detection is based on structured clinical interviews which can be biased by the patient’s recall ability, affective state, changing in temporal frames, etc. While digital platforms have been introduced as a possible solution to this complex problem, there is little evidence on the extent of usability and usefulness of these platforms. Therefore, more studies where digital data is collected in larger scales are needed to collect scientific evidence on the capacities of these platforms. Most of the existing platforms for digital psychiatry studies are designed as monolithic systems for a certain type of study; publications from these studies focus on their results, rather than the design features of the data collection platform. Inevitably, more tools and platforms will emerge in the near future to fulfill the need for digital data collection for psychiatry. Currently little knowledge is available from existing digital platforms for future data collection platforms to build upon. Objective The objective of this work was to identify the most important features for designing a digital platform for data collection for mental health studies, and to demonstrate a prototype platform that we built based on these design features. Methods We worked closely in a multidisciplinary collaboration with psychiatrists, software developers, and data scientists and identified the key features which could guarantee short-term and long-term stability and usefulness of the platform from the designing stage to data collection and analysis of collected data. Results The key design features that we identified were flexibility of access control, flexibility of data sources, and first-order privacy protection. We also designed the prototype platform Non-Intrusive Individual Monitoring Architecture (Niima), where we

  1. Flight software requirements and design support system

    NASA Technical Reports Server (NTRS)

    Riddle, W. E.; Edwards, B.

    1980-01-01

    The desirability and feasibility of computer-augmented support for the pre-implementation activities occurring during the development of flight control software was investigated. The specific topics to be investigated were the capabilities to be included in a pre-implementation support system for flight control software system development, and the specification of a preliminary design for such a system. Further, the pre-implementation support system was to be characterized and specified under the constraints that it: (1) support both description and assessment of flight control software requirements definitions and design specification; (2) account for known software description and assessment techniques; (3) be compatible with existing and planned NASA flight control software development support system; and (4) does not impose, but may encourage, specific development technologies. An overview of the results is given.

  2. Application of Cognitive Task Analysis in User Requirements and Prototype Design Presentation/Briefing

    DTIC Science & Technology

    2005-10-01

    AFRL-HE-WP-TP-2005-0030 AIR FORCE RESEARCH LABORATORY Application of Cognitive Task Analysis in User Requirements and Prototype Design Presentation...TITLE AND SUBTITLE 5a. CONTRACT NUMBER FA8650-04-C-6406 Application of Cognitive Task Analysis in User Requirements 5b.GRANTNUMBER and Prototype...maintainer experience 21 21 Questions & Answers Application of Cognitive Task Analysis in User Requirements Definition and Prototype Design Christopher Curtis

  3. Natural environment design requirements for the space tug

    NASA Technical Reports Server (NTRS)

    West, G. S., Jr.

    1973-01-01

    The natural environment design requirements for the space tug are presented. Since the Space Tug is carried as cargo to orbital altitudes in the space shuttle bay, orbital environmental impacts and short-period atmospheric density variations are the main concerns. The subjects discussed are: (1) natural environment, (2) neutral environment, (3) charged particles, (4) radiation, and (5) meteoroid hazards.

  4. Requirements and Designs for Mars Rover RTGs

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

    Schock, Alfred; Shirbacheh, M; Sankarankandath, V

    The current-generation RTGs (both GPHS and MOD) are designed for operation in a vacuum environment. The multifoil thermal insulation used in those RTGs only functions well in a good vacuum. Current RTGs are designed to operate with an inert cover gas before launch, and to be vented to space vacuum after launch. Both RTGs are sealed with a large number of metallic C-rings. Those seals are adequate for retaining the inert-gas overpressure during short-term launch operations, but would not be adequate to prevent intrusion of the Martian atmospheric gases during long-term operations there. Therefore, for the Mars Rover application, thosemore » RTGs just be modified to prevent the buildup of significant pressures of Mars atmosphere or of helium (from alpha decay of the fuel). In addition, a Mars Rover RTG needs to withstand a long-term dynamic environment that is much more severe than that seen by an RTG on an orbiting spacecraft or on a stationary planetary lander. This paper describes a typical Rover mission, its requirements, the environment it imposes on the RTG, and a design approach for making the RTG operable in such an environment. Specific RTG designs for various thermoelectric element alternatives are presented.; Reference CID #9268 and CID #9276.« less

  5. 78 FR 32988 - Core Principles and Other Requirements for Designated Contract Markets; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-03

    ... COMMODITY FUTURES TRADING COMMISSION 17 CFR Part 38 RIN 3038-AD09 Core Principles and Other... regarding Core Principles and Other Requirements for Designated Contract Markets by inserting a missing... regarding Core Principles and Other Requirements for Designated Contract Markets (77 FR 36612, June 19, 2012...

  6. 9 CFR 302.2 - Application of requirements in designated States or Territories; and to designated plants...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 9 Animals and Animal Products 2 2012-01-01 2012-01-01 false Application of requirements in designated States or Territories; and to designated plants endangering public health. 302.2 Section 302.2 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND...

  7. 9 CFR 302.2 - Application of requirements in designated States or Territories; and to designated plants...

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 9 Animals and Animal Products 2 2013-01-01 2013-01-01 false Application of requirements in designated States or Territories; and to designated plants endangering public health. 302.2 Section 302.2 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE AGENCY ORGANIZATION AND TERMINOLOGY; MANDATORY MEAT AND...

  8. 30 CFR 250.908 - What are the minimum structural fatigue design requirements?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 2 2011-07-01 2011-07-01 false What are the minimum structural fatigue design... fatigue design requirements? (a) API RP 2A-WSD, Recommended Practice for Planning, Designing and... the design fatigue life of each joint and member be twice the intended service life of the structure...

  9. Jefferson Lab CLAS12 Superconducting Solenoid magnet Requirements and Design Evolution

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

    Rajput-Ghoshal, Renuka; Hogan, John P.; Fair, Ruben J.

    2014-12-01

    As part of the Jefferson Lab 12GeV accelerator upgrade project, one of the experimental halls (Hall B) requires two superconducting magnets. One is a magnet system consisting of six superconducting trapezoidal racetrack-type coils assembled in a toroidal configuration and the second is an actively shielded solenoidal magnet system consisting of 5 coils. In this presentation the physics requirements for the 5 T solenoid magnet, design constraints, conductor decision, and cooling choice will be discussed. The various design iterations to meet the specification will also be discussed in this presentation.

  10. Applying CBR to machine tool product configuration design oriented to customer requirements

    NASA Astrophysics Data System (ADS)

    Wang, Pengjia; Gong, Yadong; Xie, Hualong; Liu, Yongxian; Nee, Andrew Yehching

    2017-01-01

    Product customization is a trend in the current market-oriented manufacturing environment. However, deduction from customer requirements to design results and evaluation of design alternatives are still heavily reliant on the designer's experience and knowledge. To solve the problem of fuzziness and uncertainty of customer requirements in product configuration, an analysis method based on the grey rough model is presented. The customer requirements can be converted into technical characteristics effectively. In addition, an optimization decision model for product planning is established to help the enterprises select the key technical characteristics under the constraints of cost and time to serve the customer to maximal satisfaction. A new case retrieval approach that combines the self-organizing map and fuzzy similarity priority ratio method is proposed in case-based design. The self-organizing map can reduce the retrieval range and increase the retrieval efficiency, and the fuzzy similarity priority ratio method can evaluate the similarity of cases comprehensively. To ensure that the final case has the best overall performance, an evaluation method of similar cases based on grey correlation analysis is proposed to evaluate similar cases to select the most suitable case. Furthermore, a computer-aided system is developed using MATLAB GUI to assist the product configuration design. The actual example and result on an ETC series machine tool product show that the proposed method is effective, rapid and accurate in the process of product configuration. The proposed methodology provides a detailed instruction for the product configuration design oriented to customer requirements.

  11. 21 CFR 3.5 - Procedures for identifying the designated agency component.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... and Research have entered into agreements clarifying product jurisdictional issues. These guidance... 21 Food and Drugs 1 2010-04-01 2010-04-01 false Procedures for identifying the designated agency component. 3.5 Section 3.5 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN...

  12. 21 CFR 3.5 - Procedures for identifying the designated agency component.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... and Research have entered into agreements clarifying product jurisdictional issues. These guidance... 21 Food and Drugs 1 2011-04-01 2011-04-01 false Procedures for identifying the designated agency component. 3.5 Section 3.5 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN...

  13. Modelling elderly cardiac patients decision making using Cognitive Work Analysis: identifying requirements for patient decision aids.

    PubMed

    Dhukaram, Anandhi Vivekanandan; Baber, Chris

    2015-06-01

    Patients make various healthcare decisions on a daily basis. Such day-to-day decision making can have significant consequences on their own health, treatment, care, and costs. While decision aids (DAs) provide effective support in enhancing patient's decision making, to date there have been few studies examining patient's decision making process or exploring how the understanding of such decision processes can aid in extracting requirements for the design of DAs. This paper applies Cognitive Work Analysis (CWA) to analyse patient's decision making in order to inform requirements for supporting self-care decision making. This study uses focus groups to elicit information from elderly cardiovascular disease (CVD) patients concerning a range of decision situations they face on a daily basis. Specifically, the focus groups addressed issues related to the decision making of CVD in terms of medication compliance, pain, diet and exercise. The results of these focus groups are used to develop high level views using CWA. CWA framework decomposes the complex decision making problem to inform three approaches to DA design: one design based on high level requirements; one based on a normative model of decision-making for patients; and the third based on a range of heuristics that patients seem to use. CWA helps in extracting and synthesising decision making from different perspectives: decision processes, work organisation, patient competencies and strategies used in decision making. As decision making can be influenced by human behaviour like skills, rules and knowledge, it is argued that patients require support to different types of decision making. This paper also provides insights for designers in using CWA framework for the design of effective DAs to support patients in self-management. Copyright © 2015 Elsevier Ireland Ltd. All rights reserved.

  14. 19 CFR 115.30 - Technical requirements for containers by design type.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO INTERNATIONAL CUSTOMS CONVENTIONS Procedures for Approval of Containers by Design Type § 115.30 Technical... 19 Customs Duties 1 2011-04-01 2011-04-01 false Technical requirements for containers by design...

  15. 19 CFR 115.30 - Technical requirements for containers by design type.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO INTERNATIONAL CUSTOMS CONVENTIONS Procedures for Approval of Containers by Design Type § 115.30 Technical... 19 Customs Duties 1 2012-04-01 2012-04-01 false Technical requirements for containers by design...

  16. 19 CFR 115.30 - Technical requirements for containers by design type.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO INTERNATIONAL CUSTOMS CONVENTIONS Procedures for Approval of Containers by Design Type § 115.30 Technical... 19 Customs Duties 1 2014-04-01 2014-04-01 false Technical requirements for containers by design...

  17. 19 CFR 115.30 - Technical requirements for containers by design type.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO INTERNATIONAL CUSTOMS CONVENTIONS Procedures for Approval of Containers by Design Type § 115.30 Technical... 19 Customs Duties 1 2010-04-01 2010-04-01 false Technical requirements for containers by design...

  18. 19 CFR 115.30 - Technical requirements for containers by design type.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO INTERNATIONAL CUSTOMS CONVENTIONS Procedures for Approval of Containers by Design Type § 115.30 Technical... 19 Customs Duties 1 2013-04-01 2013-04-01 false Technical requirements for containers by design...

  19. 16 CFR 305.22 - Required testing by designated laboratory.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... CONGRESS RULE CONCERNING DISCLOSURES REGARDING ENERGY CONSUMPTION AND WATER USE OF CERTAIN HOME APPLIANCES AND OTHER PRODUCTS REQUIRED UNDER THE ENERGY POLICY AND CONSERVATION ACT (âAPPLIANCE LABELING RULEâ... Commission or its designated representative, a manufacturer of a covered product shall supply, at the...

  20. 16 CFR 305.22 - Required testing by designated laboratory.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... CONGRESS RULE CONCERNING DISCLOSURES REGARDING ENERGY CONSUMPTION AND WATER USE OF CERTAIN HOME APPLIANCES AND OTHER PRODUCTS REQUIRED UNDER THE ENERGY POLICY AND CONSERVATION ACT (âAPPLIANCE LABELING RULEâ... Commission or its designated representative, a manufacturer of a covered product shall supply, at the...

  1. 16 CFR 305.22 - Required testing by designated laboratory.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... CONGRESS RULE CONCERNING DISCLOSURES REGARDING ENERGY CONSUMPTION AND WATER USE OF CERTAIN HOME APPLIANCES AND OTHER PRODUCTS REQUIRED UNDER THE ENERGY POLICY AND CONSERVATION ACT (âAPPLIANCE LABELING RULEâ... Commission or its designated representative, a manufacturer of a covered product shall supply, at the...

  2. 16 CFR 305.22 - Required testing by designated laboratory.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... CONGRESS RULE CONCERNING DISCLOSURES REGARDING ENERGY CONSUMPTION AND WATER USE OF CERTAIN HOME APPLIANCES AND OTHER PRODUCTS REQUIRED UNDER THE ENERGY POLICY AND CONSERVATION ACT (âAPPLIANCE LABELING RULEâ... Commission or its designated representative, a manufacturer of a covered product shall supply, at the...

  3. Data Collection for Mental Health Studies Through Digital Platforms: Requirements and Design of a Prototype.

    PubMed

    Aledavood, Talayeh; Triana Hoyos, Ana Maria; Alakörkkö, Tuomas; Kaski, Kimmo; Saramäki, Jari; Isometsä, Erkki; Darst, Richard K

    2017-06-09

    Mental and behavioral disorders are the main cause of disability worldwide. However, their diagnosis is challenging due to a lack of reliable biomarkers; current detection is based on structured clinical interviews which can be biased by the patient's recall ability, affective state, changing in temporal frames, etc. While digital platforms have been introduced as a possible solution to this complex problem, there is little evidence on the extent of usability and usefulness of these platforms. Therefore, more studies where digital data is collected in larger scales are needed to collect scientific evidence on the capacities of these platforms. Most of the existing platforms for digital psychiatry studies are designed as monolithic systems for a certain type of study; publications from these studies focus on their results, rather than the design features of the data collection platform. Inevitably, more tools and platforms will emerge in the near future to fulfill the need for digital data collection for psychiatry. Currently little knowledge is available from existing digital platforms for future data collection platforms to build upon. The objective of this work was to identify the most important features for designing a digital platform for data collection for mental health studies, and to demonstrate a prototype platform that we built based on these design features. We worked closely in a multidisciplinary collaboration with psychiatrists, software developers, and data scientists and identified the key features which could guarantee short-term and long-term stability and usefulness of the platform from the designing stage to data collection and analysis of collected data. The key design features that we identified were flexibility of access control, flexibility of data sources, and first-order privacy protection. We also designed the prototype platform Non-Intrusive Individual Monitoring Architecture (Niima), where we implemented these key design features. We

  4. Facility Systems, Ground Support Systems, and Ground Support Equipment General Design Requirements

    NASA Technical Reports Server (NTRS)

    Thaxton, Eric A.

    2014-01-01

    KSC-DE-512-SM establishes overall requirements and best design practices to be used at the John F. Kennedy Space Center (KSC) for the development of ground systems (GS) in support of operations at launch, landing, and retrieval sites. These requirements apply to the design and development of hardware and software for ground support equipment (GSE), ground support systems (GSS), and facility ground support systems (F-GSS) used to support the KSC mission for transportation, receiving, handling, assembly, test, checkout, servicing, and launch of space vehicles and payloads and selected flight hardware items for retrieval. This standards manual supplements NASA-STD-5005 by including KSC-site-specific and local environment requirements. These requirements and practices are optional for equipment used at manufacturing, development, and test sites.

  5. 30 CFR 77.804 - High-voltage trailing cables; minimum design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false High-voltage trailing cables; minimum design... OF UNDERGROUND COAL MINES Surface High-Voltage Distribution § 77.804 High-voltage trailing cables; minimum design requirements. (a) High-voltage trailing cables used in resistance grounded systems shall be...

  6. 30 CFR 77.804 - High-voltage trailing cables; minimum design requirements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false High-voltage trailing cables; minimum design... OF UNDERGROUND COAL MINES Surface High-Voltage Distribution § 77.804 High-voltage trailing cables; minimum design requirements. (a) High-voltage trailing cables used in resistance grounded systems shall be...

  7. 30 CFR 77.804 - High-voltage trailing cables; minimum design requirements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false High-voltage trailing cables; minimum design... OF UNDERGROUND COAL MINES Surface High-Voltage Distribution § 77.804 High-voltage trailing cables; minimum design requirements. (a) High-voltage trailing cables used in resistance grounded systems shall be...

  8. 30 CFR 77.804 - High-voltage trailing cables; minimum design requirements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false High-voltage trailing cables; minimum design... OF UNDERGROUND COAL MINES Surface High-Voltage Distribution § 77.804 High-voltage trailing cables; minimum design requirements. (a) High-voltage trailing cables used in resistance grounded systems shall be...

  9. Functional Mobility Testing: A Novel Method to Establish Human System Interface Design Requirements

    NASA Technical Reports Server (NTRS)

    England, Scott A.; Benson, Elizabeth A.; Rajulu, Sudhakar

    2008-01-01

    Across all fields of human-system interface design it is vital to posses a sound methodology dictating the constraints on the system based on the capabilities of the human user. These limitations may be based on strength, mobility, dexterity, cognitive ability, etc. and combinations thereof. Data collected in an isolated environment to determine, for example, maximal strength or maximal range of motion would indeed be adequate for establishing not-to-exceed type design limitations, however these restraints on the system may be excessive over what is basally needed. Resources may potentially be saved by having a technique to determine the minimum measurements a system must accommodate. This paper specifically deals with the creation of a novel methodology for establishing mobility requirements for a new generation of space suit design concepts. Historically, the Space Shuttle and the International Space Station vehicle and space hardware design requirements documents such as the Man-Systems Integration Standards and International Space Station Flight Crew Integration Standard explicitly stated that the designers should strive to provide the maximum joint range of motion capabilities exhibited by a minimally clothed human subject. In the course of developing the Human-Systems Integration Requirements (HSIR) for the new space exploration initiative (Constellation), an effort was made to redefine the mobility requirements in the interest of safety and cost. Systems designed for manned space exploration can receive compounded gains from simplified designs that are both initially less expensive to produce and lighter, thereby, cheaper to launch.

  10. Applying the ICF to identify requirements for students with Asperger syndrome in higher education.

    PubMed

    Adolfsson, Margareta; Simmeborn Fleischer, Ann

    2015-06-01

    Higher education requires more than academic skills and everyday student-life can be stressful. Students with Asperger syndrome (AS) may need support to manage their education due to difficulties in social functioning. As preparation for the development of a structured tool to guide student and coordinator dialogues at Swedish universities, this study aimed to identify ICF categories that reflect requirements in everyday student-life for students with AS. Using descriptive qualitative approach, information in documents reflecting the perspectives of university students, international classifications, user/health organisations and education authorities were linked to ICF codes. In total, 114 ICF categories were identified, most of which related to learning, tasks and demands, communication and interactions. Students with AS need varying accommodations to be successful in higher education. In the future, ICF-based code sets, including demands on student roles, can be used as checklists to describe functioning and needs for support.

  11. Study design requirements for RNA sequencing-based breast cancer diagnostics.

    PubMed

    Mer, Arvind Singh; Klevebring, Daniel; Grönberg, Henrik; Rantalainen, Mattias

    2016-02-01

    Sequencing-based molecular characterization of tumors provides information required for individualized cancer treatment. There are well-defined molecular subtypes of breast cancer that provide improved prognostication compared to routine biomarkers. However, molecular subtyping is not yet implemented in routine breast cancer care. Clinical translation is dependent on subtype prediction models providing high sensitivity and specificity. In this study we evaluate sample size and RNA-sequencing read requirements for breast cancer subtyping to facilitate rational design of translational studies. We applied subsampling to ascertain the effect of training sample size and the number of RNA sequencing reads on classification accuracy of molecular subtype and routine biomarker prediction models (unsupervised and supervised). Subtype classification accuracy improved with increasing sample size up to N = 750 (accuracy = 0.93), although with a modest improvement beyond N = 350 (accuracy = 0.92). Prediction of routine biomarkers achieved accuracy of 0.94 (ER) and 0.92 (Her2) at N = 200. Subtype classification improved with RNA-sequencing library size up to 5 million reads. Development of molecular subtyping models for cancer diagnostics requires well-designed studies. Sample size and the number of RNA sequencing reads directly influence accuracy of molecular subtyping. Results in this study provide key information for rational design of translational studies aiming to bring sequencing-based diagnostics to the clinic.

  12. 30 CFR 250.1002 - Design requirements for DOI pipelines.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 2 2011-07-01 2011-07-01 false Design requirements for DOI pipelines. 250.1002 Section 250.1002 Mineral Resources BUREAU OF OCEAN ENERGY MANAGEMENT, REGULATION, AND ENFORCEMENT... ratings based on stresses for pipe of the same or equivalent material. The actual bursting strength of the...

  13. 7 CFR Exhibit B to Subpart C of... - Site Development Design Requirements

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 12 2010-01-01 2010-01-01 false Site Development Design Requirements B Exhibit B to... Work Pt. 1924, Subpt. C, Exh. B Exhibit B to Subpart C of Part 1924—Site Development Design... burdens and conditions unsuitable for healthy and pleasant living. Proper site design can preserve...

  14. 7 CFR Exhibit B to Subpart C of... - Site Development Design Requirements

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 12 2013-01-01 2013-01-01 false Site Development Design Requirements B Exhibit B to... Work Pt. 1924, Subpt. C, Exh. B Exhibit B to Subpart C of Part 1924—Site Development Design... burdens and conditions unsuitable for healthy and pleasant living. Proper site design can preserve...

  15. 7 CFR Exhibit B to Subpart C of... - Site Development Design Requirements

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 12 2012-01-01 2012-01-01 false Site Development Design Requirements B Exhibit B to... Work Pt. 1924, Subpt. C, Exh. B Exhibit B to Subpart C of Part 1924—Site Development Design... burdens and conditions unsuitable for healthy and pleasant living. Proper site design can preserve...

  16. 7 CFR Exhibit B to Subpart C of... - Site Development Design Requirements

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 12 2011-01-01 2011-01-01 false Site Development Design Requirements B Exhibit B to... Work Pt. 1924, Subpt. C, Exh. B Exhibit B to Subpart C of Part 1924—Site Development Design... burdens and conditions unsuitable for healthy and pleasant living. Proper site design can preserve...

  17. 7 CFR Exhibit B to Subpart C of... - Site Development Design Requirements

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 12 2014-01-01 2013-01-01 true Site Development Design Requirements B Exhibit B to... Work Pt. 1924, Subpt. C, Exh. B Exhibit B to Subpart C of Part 1924—Site Development Design... burdens and conditions unsuitable for healthy and pleasant living. Proper site design can preserve...

  18. Functional Mobility Testing: A Novel Method to Create Suit Design Requirements

    NASA Technical Reports Server (NTRS)

    England, Scott A.; Benson, Elizabeth A.; Rajulu, Sudhakar L.

    2008-01-01

    This study was performed to aide in the creation of design requirements for the next generation of space suits that more accurately describe the level of mobility necessary for a suited crewmember through the use of an innovative methodology utilizing functional mobility. A novel method was utilized involving the collection of kinematic data while 20 subjects (10 male, 10 female) performed pertinent functional tasks that will be required of a suited crewmember during various phases of a lunar mission. These tasks were selected based on relevance and criticality from a larger list of tasks that may be carried out by the crew. Kinematic data was processed through Vicon BodyBuilder software to calculate joint angles for the ankle, knee, hip, torso, shoulder, elbow, and wrist. Maximum functional mobility was consistently lower than maximum isolated mobility. This study suggests that conventional methods for establishing design requirements for human-systems interfaces based on maximal isolated joint capabilities may overestimate the required mobility. Additionally, this method provides a valuable means of evaluating systems created from these requirements by comparing the mobility available in a new spacesuit, or the mobility required to use a new piece of hardware, to this newly established database of functional mobility.

  19. Sharing and Reuse of Sensitive Data and Samples: Supporting Researchers in Identifying Ethical and Legal Requirements

    PubMed Central

    Schluender, Irene; Smee, Carol; Suhr, Stephanie

    2015-01-01

    Availability of and access to data and biosamples are essential in medical and translational research, where their reuse and repurposing by the wider research community can maximize their value and accelerate discovery. However, sharing human-related data or samples is complicated by ethical, legal, and social sensitivities. The specific ethical and legal requirements linked to sensitive data are often unfamiliar to life science researchers who, faced with vast amounts of complex, fragmented, and sometimes even contradictory information, may not feel competent to navigate through it. In this case, the impulse may be not to share the data in order to safeguard against unintentional misuse. Consequently, helping data providers to identify relevant ethical and legal requirements and how they might address them is an essential and frequently neglected step in removing possible hurdles to data and sample sharing in the life sciences. Here, we describe the complex regulatory context and discuss relevant online tools—one which the authors co-developed—targeted at assisting providers of sensitive data or biosamples with ethical and legal questions. The main results are (1) that the different approaches of the tools assume different user needs and prior knowledge of ethical and legal requirements, affecting how a service is designed and its usefulness, (2) that there is much potential for collaboration between tool providers, and (3) that enriched annotations of services (e.g., update status, completeness of information, and disclaimers) would increase their value and facilitate quick assessment by users. Further, there is still work to do with respect to providing researchers using sensitive data or samples with truly ‘useful’ tools that do not require pre-existing, in-depth knowledge of legal and ethical requirements or time to delve into the details. Ultimately, separate resources, maintained by experts familiar with the respective fields of research, may be

  20. Beyond basic citation—What to identify, when, and why

    NASA Astrophysics Data System (ADS)

    Parsons, M. A.

    2015-12-01

    Persistent identifiers (and locators) have emerged as a critical component in designing and implementing information systems and networks. This is especially evident in the use of the Digital Object Identifier in association with formal bibliographic citation of literature and increasingly of data sets. Indeed, the principles and methods of data citation have been a hot topic in the informatics community over the last decade or so. To date the focus has typically been on closely linking data sets to associated literature and generally emulating bibliographic-style citation. To design a sustainable, trusted data infrastructure, however, requires us to unambiguously reference many things in many ways, be they data, software, instruments, methods, or people. Design of this infrastructure also requires us to consider the entire data lifecycle and when important elements come into play and need to be identified. This paper will advocate an "ecological" model of data sharing that takes a more holistic perspective than many traditional data publication approaches. It will explore a variety of use cases around what elements of an information ecosystem need to be unambiguously identified and located, at what point in the data production process, and to what explicit purpose.

  1. Towards the formal specification of the requirements and design of a processor interface unit

    NASA Technical Reports Server (NTRS)

    Fura, David A.; Windley, Phillip J.; Cohen, Gerald C.

    1993-01-01

    Work to formally specify the requirements and design of a Processor Interface Unit (PIU), a single-chip subsystem providing memory interface, bus interface, and additional support services for a commercial microprocessor within a fault-tolerant computer system, is described. This system, the Fault-Tolerant Embedded Processor (FTEP), is targeted towards applications in avionics and space requiring extremely high levels of mission reliability, extended maintenance free operation, or both. The approaches that were developed for modeling the PIU requirements and for composition of the PIU subcomponents at high levels of abstraction are described. These approaches were used to specify and verify a nontrivial subset of the PIU behavior. The PIU specification in Higher Order Logic (HOL) is documented in a companion NASA contractor report entitled 'Towards the Formal Specification of the Requirements and Design of a Processor Interfacs Unit - HOL Listings.' The subsequent verification approach and HOL listings are documented in NASA contractor report entitled 'Towards the Formal Verification of the Requirements and Design of a Processor Interface Unit' and NASA contractor report entitled 'Towards the Formal Verification of the Requirements and Design of a Processor Interface Unit - HOL Listings.'

  2. 30 CFR 250.1002 - Design requirements for DOI pipelines.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false Design requirements for DOI pipelines. 250.1002 Section 250.1002 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR OFFSHORE OIL... stresses for pipe of the same or equivalent material. The actual bursting strength of the fitting shall at...

  3. Acoustic attenuation design requirements established through EPNL parametric trades

    NASA Technical Reports Server (NTRS)

    Veldman, H. F.

    1972-01-01

    An optimization procedure for the provision of an acoustic lining configuration that is balanced with respect to engine performance losses and lining attenuation characteristics was established using a method which determined acoustic attenuation design requirements through parametric trade studies using the subjective noise unit of effective perceived noise level (EPNL).

  4. Design requirements for operational earth resources ground data processing

    NASA Technical Reports Server (NTRS)

    Baldwin, C. J.; Bradford, L. H.; Burnett, E. S.; Hutson, D. E.; Kinsler, B. A.; Kugle, D. R.; Webber, D. S.

    1972-01-01

    Realistic tradeoff data and evaluation techniques were studied that permit conceptual design of operational earth resources ground processing systems. Methodology for determining user requirements that utilize the limited information available from users is presented along with definitions of sensor capabilities projected into the shuttle/station era. A tentative method is presented for synthesizing candidate ground processing concepts.

  5. 13 CFR 127.502 - How will SBA identify and provide notice of the designated industries?

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... notice of the designated industries? 127.502 Section 127.502 Business Credit and Assistance SMALL... § 127.502 How will SBA identify and provide notice of the designated industries? SBA will post on its Internet Web site at http://www.sba.gov a list of NAICS Industry Subsector industries it designates under...

  6. 13 CFR 127.502 - How will SBA identify and provide notice of the designated industries?

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... notice of the designated industries? 127.502 Section 127.502 Business Credit and Assistance SMALL... § 127.502 How will SBA identify and provide notice of the designated industries? SBA will post on its Internet Web site at http://www.sba.gov a list of NAICS Industry Subsector industries it designates under...

  7. Satellite Power Systems (SPS) concept definition study. Volume 2: SPS system requirements

    NASA Technical Reports Server (NTRS)

    Hanley, G.

    1978-01-01

    Collected data reflected the level of definition resulting from the evaluation of a broad spectrum of SPS (satellite power systems) concepts. As the various concepts matured, these requirements were updated to reflect the requirements identified for the projected satellite system/subsystem point design(s). The study established several candidate concepts which were presented to provide a basis for the selection of one or two approaches that would be given a more comprehensive examination. The two selected concepts were expanded and constitute the selected system point designs. The identified system/subsystem requirements was emphasized and information on the selected point design was provided.

  8. Identifying critical success factors for designing selection processes into postgraduate specialty training: the case of UK general practice.

    PubMed

    Plint, Simon; Patterson, Fiona

    2010-06-01

    The UK national recruitment process into general practice training has been developed over several years, with incremental introduction of stages which have been piloted and validated. Previously independent processes, which encouraged multiple applications and produced inconsistent outcomes, have been replaced by a robust national process which has high reliability and predictive validity, and is perceived to be fair by candidates and allocates applicants equitably across the country. Best selection practice involves a job analysis which identifies required competencies, then designs reliable assessment methods to measure them, and over the long term ensures that the process has predictive validity against future performance. The general practitioner recruitment process introduced machine markable short listing assessments for the first time in the UK postgraduate recruitment context, and also adopted selection centre workplace simulations. The key success factors have been identified as corporate commitment to the goal of a national process, with gradual convergence maintaining locus of control rather than the imposition of change without perceived legitimate authority.

  9. 5 CFR 731.106 - Designation of public trust positions and investigative requirements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 5 Administrative Personnel 2 2014-01-01 2014-01-01 false Designation of public trust positions and investigative requirements. 731.106 Section 731.106 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) SUITABILITY Scope § 731.106 Designation of public trust...

  10. 5 CFR 731.106 - Designation of public trust positions and investigative requirements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 5 Administrative Personnel 2 2013-01-01 2013-01-01 false Designation of public trust positions and investigative requirements. 731.106 Section 731.106 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) SUITABILITY Scope § 731.106 Designation of public trust...

  11. 5 CFR 731.106 - Designation of public trust positions and investigative requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 5 Administrative Personnel 2 2011-01-01 2011-01-01 false Designation of public trust positions and investigative requirements. 731.106 Section 731.106 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) SUITABILITY Scope § 731.106 Designation of public trust...

  12. 5 CFR 731.106 - Designation of public trust positions and investigative requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false Designation of public trust positions and investigative requirements. 731.106 Section 731.106 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) SUITABILITY Scope § 731.106 Designation of public trust...

  13. 5 CFR 731.106 - Designation of public trust positions and investigative requirements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 5 Administrative Personnel 2 2012-01-01 2012-01-01 false Designation of public trust positions and investigative requirements. 731.106 Section 731.106 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED) SUITABILITY Scope § 731.106 Designation of public trust...

  14. 76 FR 9665 - Designation, Reportable Quantities, and Notification; Notification Requirements

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-02-22

    ... ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 302 [EPA-HQ-SFUND-2010-1068; FRL-9268-8] Designation, Reportable Quantities, and Notification; Notification Requirements AGENCY: Environmental Protection Agency... knowledge of any release (other than a federally permitted release or application of a pesticide) for the...

  15. Development of Integrated Programs for Aerospace-vehicle design (IPAD): Integrated information processing requirements

    NASA Technical Reports Server (NTRS)

    Southall, J. W.

    1979-01-01

    The engineering-specified requirements for integrated information processing by means of the Integrated Programs for Aerospace-Vehicle Design (IPAD) system are presented. A data model is described and is based on the design process of a typical aerospace vehicle. General data management requirements are specified for data storage, retrieval, generation, communication, and maintenance. Information management requirements are specified for a two-component data model. In the general portion, data sets are managed as entities, and in the specific portion, data elements and the relationships between elements are managed by the system, allowing user access to individual elements for the purpose of query. Computer program management requirements are specified for support of a computer program library, control of computer programs, and installation of computer programs into IPAD.

  16. Learning from patients: Identifying design features of medicines that cause medication use problems.

    PubMed

    Notenboom, Kim; Leufkens, Hubert Gm; Vromans, Herman; Bouvy, Marcel L

    2017-01-30

    Usability is a key factor in ensuring safe and efficacious use of medicines. However, several studies showed that people experience a variety of problems using their medicines. The purpose of this study was to identify design features of oral medicines that cause use problems among older patients in daily practice. A qualitative study with semi-structured interviews on the experiences of older people with the use of their medicines was performed (n=59). Information on practical problems, strategies to overcome these problems and the medicines' design features that caused these problems were collected. The practical problems and management strategies were categorised into 'use difficulties' and 'use errors'. A total of 158 use problems were identified, of which 45 were categorized as use difficulties and 113 as use error. Design features that contributed the most to the occurrence of use difficulties were the dimensions and surface texture of the dosage form (29.6% and 18.5%, respectively). Design features that contributed the most to the occurrence of use errors were the push-through force of blisters (22.1%) and tamper evident packaging (12.1%). These findings will help developers of medicinal products to proactively address potential usability issues with their medicines. Copyright © 2016 The Authors. Published by Elsevier B.V. All rights reserved.

  17. Design requirements and development of an airborne descent path definition algorithm for time navigation

    NASA Technical Reports Server (NTRS)

    Izumi, K. H.; Thompson, J. L.; Groce, J. L.; Schwab, R. W.

    1986-01-01

    The design requirements for a 4D path definition algorithm are described. These requirements were developed for the NASA ATOPS as an extension of the Local Flow Management/Profile Descent algorithm. They specify the processing flow, functional and data architectures, and system input requirements, and recommended the addition of a broad path revision (reinitialization) function capability. The document also summarizes algorithm design enhancements and the implementation status of the algorithm on an in-house PDP-11/70 computer. Finally, the requirements for the pilot-computer interfaces, the lateral path processor, and guidance and steering function are described.

  18. Free-flying teleoperator requirements and conceptual design.

    NASA Technical Reports Server (NTRS)

    Onega, G. T.; Clingman, J. H.

    1973-01-01

    A teleoperator, as defined by NASA, is a remotely controlled cybernetic man-machine system designed to augment and extend man's sensory, manipulative, and cognitive capabilities. Teleoperator systems can fulfill an important function in the Space Shuttle program. They can retrieve automated satellites for refurbishment and reuse. Cargo can be transferred over short or large distances and orbital operations can be supported. A requirements analysis is discussed, giving attention to the teleoperator spacecraft, docking and stowage systems, display and controls, propulsion, guidance, navigation, control, the manipulators, the video system, the electrical power, and aspects of communication and data management. Questions of concept definition and evaluation are also examined.

  19. The engagement of children with disabilities in health-related technology design processes: identifying methodology.

    PubMed

    Allsop, Matthew J; Holt, Raymond J; Levesley, Martin C; Bhakta, Bipinchandra

    2010-01-01

    This review aims to identify research methodology that is suitable for involving children with disabilities in the design of healthcare technology, such as assistive technology and rehabilitation equipment. A review of the literature included the identification of methodology that is available from domains outside of healthcare and suggested a selection of available methods. The need to involve end users within the design of healthcare technology was highlighted, with particular attention to the need for greater levels of participation from children with disabilities within all healthcare research. Issues that may arise when trying to increase such involvement included the need to consider communication via feedback and tailored information, the need to measure levels of participation occurring in current research, and caution regarding the use of proxy information. Additionally, five suitable methods were highlighted that are available for use with children with disabilities in the design of healthcare technology. The methods identified in the review need to be put into practice to establish effective and, if necessary, novel ways of designing healthcare technology when end users are children with disabilities.

  20. Design Tools for Cost-Effective Implementation of Planetary Protection Requirements

    NASA Technical Reports Server (NTRS)

    Hamlin, Louise; Belz, Andrea; Evans, Michael; Kastner, Jason; Satter, Celeste; Spry, Andy

    2006-01-01

    Since the Viking missions to Mars in the 1970s, accounting for the costs associated with planetary protection implementation has not been done systematically during early project formulation phases, leading to unanticipated costs during subsequent implementation phases of flight projects. The simultaneous development of more stringent planetary protection requirements, resulting from new knowledge about the limits of life on Earth, together with current plans to conduct life-detection experiments on a number of different solar system target bodies motivates a systematic approach to integrating planetary protection requirements and mission design. A current development effort at NASA's Jet Propulsion Laboratory is aimed at integrating planetary protection requirements more fully into the early phases of mission architecture formulation and at developing tools to more rigorously predict associated cost and schedule impacts of architecture options chosen to meet planetary protection requirements.

  1. 24 CFR 3280.903 - General requirements for designing the structure to withstand transportation shock and vibration.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... HOME CONSTRUCTION AND SAFETY STANDARDS Transportation § 3280.903 General requirements for designing the... manufactured home shall be designed, in terms of its structural, plumbing, mechanical and electrical systems... 24 Housing and Urban Development 5 2010-04-01 2010-04-01 false General requirements for designing...

  2. Hydrogen for the subsonic transport. [aircraft design and fuel requirements

    NASA Technical Reports Server (NTRS)

    Korycinski, P. F.; Snow, D. B.

    1975-01-01

    Relations between air travel and fuel requirements are examined. Alternate fuels considered in connection with problems related to a diminishing supply of petroleum include synthetic jet fuel, methane, and hydrogen. A cruise flight of a subsonic aircraft on a hydrogen-fueled jet engine was demonstrated in 1957. However, more development work is required to provide a sound engineering base for a complete air transportation system using hydrogen as fuel. Aircraft designs for alternate fuels are discussed, giving attention to hydrogen-related technology already available and new developments which are needed.

  3. Chemical and Biological Defense: Designated Entity Needed to Identify, Align, and Manage DOD’s Infrastructure

    DTIC Science & Technology

    2015-06-01

    Designated Leader, GAO-10-645 (Washington, D.C.: June 30, 2010). 35See GAO, Biological Defense: DOD Has Strengthened Coordination on Medical... on track to be designated a Leadership in Energy and Environmental Design facility. metabolic poisons, and pulmonary toxicants; nerve agent...CHEMICAL AND BIOLOGICAL DEFENSE Designated Entity Needed to Identify, Align, and Manage DOD’s Infrastructure

  4. 40 CFR 53.51 - Demonstration of compliance with design specifications and manufacturing and test requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... compliance with design specifications and manufacturing and test requirements. (a) Overview. (1) Paragraphs... 40 Protection of Environment 5 2010-07-01 2010-07-01 false Demonstration of compliance with design specifications and manufacturing and test requirements. 53.51 Section 53.51 Protection of Environment...

  5. Reliable Thermoelectric Module Design under Opposing Requirements from Structural and Thermoelectric Considerations

    NASA Astrophysics Data System (ADS)

    Karri, Naveen K.; Mo, Changki

    2018-06-01

    Structural reliability of thermoelectric generation (TEG) systems still remains an issue, especially for applications such as large-scale industrial or automobile exhaust heat recovery, in which TEG systems are subject to dynamic loads and thermal cycling. Traditional thermoelectric (TE) system design and optimization techniques, focused on performance alone, could result in designs that may fail during operation as the geometric requirements for optimal performance (especially the power) are often in conflict with the requirements for mechanical reliability. This study focused on reducing the thermomechanical stresses in a TEG system without compromising the optimized system performance. Finite element simulations were carried out to study the effect of TE element (leg) geometry such as leg length and cross-sectional shape under constrained material volume requirements. Results indicated that the element length has a major influence on the element stresses whereas regular cross-sectional shapes have minor influence. The impact of TE element stresses on the mechanical reliability is evaluated using brittle material failure theory based on Weibull analysis. An alternate couple configuration that relies on the industry practice of redundant element design is investigated. Results showed that the alternate configuration considerably reduced the TE element and metallization stresses, thereby enhancing the structural reliability, with little trade-off in the optimized performance. The proposed alternate configuration could serve as a potential design modification for improving the reliability of systems optimized for thermoelectric performance.

  6. 46 CFR 120.200 - General design, installation, and maintenance requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 4 2014-10-01 2014-10-01 false General design, installation, and maintenance requirements. 120.200 Section 120.200 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS ELECTRICAL INSTALLATION General...

  7. 46 CFR 120.200 - General design, installation, and maintenance requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 46 Shipping 4 2012-10-01 2012-10-01 false General design, installation, and maintenance requirements. 120.200 Section 120.200 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS ELECTRICAL INSTALLATION General...

  8. Defining Requirements and Related Methods for Designing Sensorized Garments.

    PubMed

    Andreoni, Giuseppe; Standoli, Carlo Emilio; Perego, Paolo

    2016-05-26

    Designing smart garments has strong interdisciplinary implications, specifically related to user and technical requirements, but also because of the very different applications they have: medicine, sport and fitness, lifestyle monitoring, workplace and job conditions analysis, etc. This paper aims to discuss some user, textile, and technical issues to be faced in sensorized clothes development. In relation to the user, the main requirements are anthropometric, gender-related, and aesthetical. In terms of these requirements, the user's age, the target application, and fashion trends cannot be ignored, because they determine the compliance with the wearable system. Regarding textile requirements, functional factors-also influencing user comfort-are elasticity and washability, while more technical properties are the stability of the chemical agents' effects for preserving the sensors' efficacy and reliability, and assuring the proper duration of the product for the complete life cycle. From the technical side, the physiological issues are the most important: skin conductance, tolerance, irritation, and the effect of sweat and perspiration are key factors for reliable sensing. Other technical features such as battery size and duration, and the form factor of the sensor collector, should be considered, as they affect aesthetical requirements, which have proven to be crucial, as well as comfort and wearability.

  9. Defining Requirements and Related Methods for Designing Sensorized Garments

    PubMed Central

    Andreoni, Giuseppe; Standoli, Carlo Emilio; Perego, Paolo

    2016-01-01

    Designing smart garments has strong interdisciplinary implications, specifically related to user and technical requirements, but also because of the very different applications they have: medicine, sport and fitness, lifestyle monitoring, workplace and job conditions analysis, etc. This paper aims to discuss some user, textile, and technical issues to be faced in sensorized clothes development. In relation to the user, the main requirements are anthropometric, gender-related, and aesthetical. In terms of these requirements, the user’s age, the target application, and fashion trends cannot be ignored, because they determine the compliance with the wearable system. Regarding textile requirements, functional factors—also influencing user comfort—are elasticity and washability, while more technical properties are the stability of the chemical agents’ effects for preserving the sensors’ efficacy and reliability, and assuring the proper duration of the product for the complete life cycle. From the technical side, the physiological issues are the most important: skin conductance, tolerance, irritation, and the effect of sweat and perspiration are key factors for reliable sensing. Other technical features such as battery size and duration, and the form factor of the sensor collector, should be considered, as they affect aesthetical requirements, which have proven to be crucial, as well as comfort and wearability. PMID:27240361

  10. 75 FR 80571 - Core Principles and Other Requirements for Designated Contract Markets

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-22

    ... Part II Commodity Futures Trading Commission 17 CFR Parts 1, 16, and 38 Core Principles and Other... CFR Parts 1, 16, and 38 RIN 3038-AD09 Core Principles and Other Requirements for Designated Contract... Principles 1. Subpart B--Designation as Contract Market 2. Subpart C--Compliance With Rules i. Proposed Sec...

  11. Identifying the Source of Gem Diamonds: Requirements for a Certification System

    NASA Astrophysics Data System (ADS)

    Shigley, J. E.

    2002-05-01

    Recent civil conflicts in several countries, in which profits from the sales of gem diamonds have supported the rival factions, have forced the jewelry industry to confront the need to certify the geographic sources of gem diamonds. The goals of this program are to prohibit the sale of so-called "conflict diamonds", and to prevent the loss of consumer confidence. Efforts to identify unique characteristics of gem diamonds have been hampered so far by the absence of chemical or physical features that are diagnostic of particular sources, and the lack of a representative collection of diamonds from major producing areas that would be required for a rigorous scientific study. The jewelry industry has therefore adopted plans to track gem diamonds from the mine through the manufacturing process to the consumer. Practical requirements for implementation of such a certification system will be summarized. Any proposed solutions for determining the sources of gem diamonds by some analytical technique, or for following diamonds from the mine, must take into account the annual production of several tens of millions of carats of rough diamonds, which are transformed during manufacturing into several hundreds of millions of polished gemstones (with an average weight of only about 0.03 carat, or 0.006 gram).

  12. 46 CFR 160.066-5 - Design, construction, and manufacturing requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 6 2011-10-01 2011-10-01 false Design, construction, and manufacturing requirements. 160.066-5 Section 160.066-5 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL LIFESAVING EQUIPMENT Distress Signal for Boats, Red Aerial Pyrotechnic Flare § 160.066-5...

  13. 46 CFR 160.066-5 - Design, construction, and manufacturing requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 6 2014-10-01 2014-10-01 false Design, construction, and manufacturing requirements. 160.066-5 Section 160.066-5 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL LIFESAVING EQUIPMENT Distress Signal for Boats, Red Aerial Pyrotechnic Flare § 160.066-5...

  14. 46 CFR 160.066-5 - Design, construction, and manufacturing requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 6 2013-10-01 2013-10-01 false Design, construction, and manufacturing requirements. 160.066-5 Section 160.066-5 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL LIFESAVING EQUIPMENT Distress Signal for Boats, Red Aerial Pyrotechnic Flare § 160.066-5...

  15. Formal Functional Test Designs: Bridging the Gap Between Test Requirements and Test Specifications

    NASA Technical Reports Server (NTRS)

    Hops, Jonathan

    1993-01-01

    This presentation describes the testing life cycle, the purpose of the test design phase, and test design methods and gives an example application. Also included is a description of Test Representation Language (TRL), a summary of the language, and an example of an application of TRL. A sample test requirement and sample test design are included.

  16. A general model-based design of experiments approach to achieve practical identifiability of pharmacokinetic and pharmacodynamic models.

    PubMed

    Galvanin, Federico; Ballan, Carlo C; Barolo, Massimiliano; Bezzo, Fabrizio

    2013-08-01

    The use of pharmacokinetic (PK) and pharmacodynamic (PD) models is a common and widespread practice in the preliminary stages of drug development. However, PK-PD models may be affected by structural identifiability issues intrinsically related to their mathematical formulation. A preliminary structural identifiability analysis is usually carried out to check if the set of model parameters can be uniquely determined from experimental observations under the ideal assumptions of noise-free data and no model uncertainty. However, even for structurally identifiable models, real-life experimental conditions and model uncertainty may strongly affect the practical possibility to estimate the model parameters in a statistically sound way. A systematic procedure coupling the numerical assessment of structural identifiability with advanced model-based design of experiments formulations is presented in this paper. The objective is to propose a general approach to design experiments in an optimal way, detecting a proper set of experimental settings that ensure the practical identifiability of PK-PD models. Two simulated case studies based on in vitro bacterial growth and killing models are presented to demonstrate the applicability and generality of the methodology to tackle model identifiability issues effectively, through the design of feasible and highly informative experiments.

  17. Development of Integrated Programs for Aerospace-vehicle Design (IPAD): Product manufacture interactions with the design process

    NASA Technical Reports Server (NTRS)

    Crowell, H. A.

    1979-01-01

    The product manufacturing interactions with the design process and the IPAD requirements to support the interactions are described. The data requirements supplied to manufacturing by design are identified and quantified. Trends in computer-aided manufacturing are discussed and the manufacturing process of the 1980's is anticipated.

  18. 48 CFR 570.117 - Sustainable requirements for lease acquisition.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Sustainable requirements for lease acquisition. Contracting officers must include sustainable design... 48 Federal Acquisition Regulations System 4 2013-10-01 2013-10-01 false Sustainable requirements...'s sustainable requirements identified in this part. [76 FR 30850, May 27, 2011] ...

  19. 48 CFR 570.117 - Sustainable requirements for lease acquisition.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Sustainable requirements for lease acquisition. Contracting officers must include sustainable design... 48 Federal Acquisition Regulations System 4 2014-10-01 2014-10-01 false Sustainable requirements...'s sustainable requirements identified in this part. [76 FR 30850, May 27, 2011] ...

  20. 48 CFR 570.117 - Sustainable requirements for lease acquisition.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Sustainable requirements for lease acquisition. Contracting officers must include sustainable design... 48 Federal Acquisition Regulations System 4 2011-10-01 2011-10-01 false Sustainable requirements...'s sustainable requirements identified in this part. [76 FR 30850, May 27, 2011] ...

  1. 48 CFR 570.117 - Sustainable requirements for lease acquisition.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Sustainable requirements for lease acquisition. Contracting officers must include sustainable design... 48 Federal Acquisition Regulations System 4 2012-10-01 2012-10-01 false Sustainable requirements...'s sustainable requirements identified in this part. [76 FR 30850, May 27, 2011] ...

  2. Natural environment design requirements for the Solar Electric Propulsion Stage (SEPS)

    NASA Technical Reports Server (NTRS)

    Andrews, L. E.

    1973-01-01

    The natural environment design requirements for the solar electric propulsion stage are presented. Environment criteria for the SEP stage will cover earth orbital operations out to geosynchronous altitudes and also interplanetary missions including comet and asteroid missions.

  3. Comparison of JSFR design with EDF requirements for future SFR

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

    Uematsu, M. M.; Prele, G.; Mariteau, P.

    2012-07-01

    A comparison of Japan sodium-cooled fast reactor (JSFR) design with future French SFR concept has been done based on the requirement of EDF, the investor-operator of future French SFR, and the French safety baseline, under the framework of EDF-JAEA bilateral agreement of research and development cooperation on future SFR. (authors)

  4. Towards identifying nurse educator competencies required for simulation-based learning: A systemised rapid review and synthesis.

    PubMed

    Topping, Anne; Bøje, Rikke Buus; Rekola, Leena; Hartvigsen, Tina; Prescott, Stephen; Bland, Andrew; Hope, Angela; Haho, Paivi; Hannula, Leena

    2015-11-01

    This paper presents the results of a systemised rapid review and synthesis of the literature undertaken to identify competencies required by nurse educators to facilitate simulation-based learning (SBL). An international collaboration undertook a protocol-based search, retrieval and critical review. Web of Science, PubMed, CINAHL Plus, PsycInfo, ERIC, the Cochrane Library and Science Direct. The search was limited to articles published in English, 2002-2012. The search terms used: nurse*, learn*, facilitator, simula*, lecturer, competence, skill*, qualificat*, educator, health care, "patient simulation", "nursing education" and "faculty". The search yielded 2156 "hits", following a review of the abstracts, 72 full-text articles were extracted. These were screened against predetermined inclusion/exclusion criteria and nine articles were retained. Following critical appraisal, the articles were analyzed using an inductive approach to extract statements for categorization and synthesis as competency statements. This review confirmed that there was a modest amount of empirical evidence on which to base a competency framework. Those papers that provided descriptions of educator preparation identified simulation-based workshops, or experiential training, as the most common approaches for enhancing skills. SBL was not associated with any one theoretical perspective. Delivery of SBL appeared to demand competencies associated with planning and designing simulations, facilitating learning in "safe" environments, expert nursing knowledge based on credible clinical realism, reference to evidence-based knowledge and demonstration of professional values and identity. This review derived a preliminary competency framework. This needs further development as a model for educators delivering SBL as part of nursing curricula. Copyright © 2015. Published by Elsevier Ltd.

  5. 25 CFR 170.463 - What should the Secretary do if a design deficiency is identified?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false What should the Secretary do if a design deficiency is identified? 170.463 Section 170.463 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR LAND AND WATER INDIAN RESERVATION ROADS PROGRAM Planning, Design, and Construction of Indian Reservation Roads...

  6. Identifying and Overcoming Threshold Concepts and Conceptions: Introducing a Conception-Focused Curriculum to Course Design

    ERIC Educational Resources Information Center

    Burch, Gerald F.; Burch, Jana J.; Bradley, Thomas P.; Heller, Nathan A.

    2015-01-01

    Educators have been challenged to identify threshold concepts and develop transformed students. This stands in stark contrast to many curriculum design and delivery models that currently view students as repositories of knowledge. In this article, we argue that educators can reach both goals, identify stumbling blocks and transforming students,…

  7. 47 CFR 54.202 - Additional requirements for Commission designation of eligible telecommunications carriers.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 3 2014-10-01 2014-10-01 false Additional requirements for Commission designation of eligible telecommunications carriers. 54.202 Section 54.202 Telecommunication FEDERAL... telecommunications carriers. (a) In order to be designated an eligible telecommunications carrier under section 214(e...

  8. 47 CFR 54.202 - Additional requirements for Commission designation of eligible telecommunications carriers.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 3 2012-10-01 2012-10-01 false Additional requirements for Commission designation of eligible telecommunications carriers. 54.202 Section 54.202 Telecommunication FEDERAL... telecommunications carriers. (a) In order to be designated an eligible telecommunications carrier under section 214(e...

  9. 47 CFR 54.202 - Additional requirements for Commission designation of eligible telecommunications carriers.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 3 2013-10-01 2013-10-01 false Additional requirements for Commission designation of eligible telecommunications carriers. 54.202 Section 54.202 Telecommunication FEDERAL... telecommunications carriers. (a) In order to be designated an eligible telecommunications carrier under section 214(e...

  10. A Framework to Determine New System Requirements Under Design Parameter and Demand Uncertainties

    DTIC Science & Technology

    2015-04-30

    relegates quantitative complexities of decision-making to the method and designates trade-space exploration to the practitioner. We demonstrate the...quantitative complexities of decision-making to the method and designates trade-space exploration to the practitioner. We demonstrate the approach...play a critical role in determining new system requirements. Scope and Method of Approach The early stages of the design process have substantial

  11. Medical Requirements for Ambulance Design and Equipment. Emergency Health Series.

    ERIC Educational Resources Information Center

    National Academy of Sciences - National Research Council, Washington, DC. Div. of Medical Sciences.

    A vehicle must meet certain specific requirements to be classified as an ambulance if it is to satisfy the demands of the physician in terms of emergency care for which properly trained ambulance attendants can be held responsible. Developed by professional and lay experts for use by automotive designers and manufacturing, this publication would…

  12. Automatic Synthesis of UML Designs from Requirements in an Iterative Process

    NASA Technical Reports Server (NTRS)

    Schumann, Johann; Whittle, Jon; Clancy, Daniel (Technical Monitor)

    2001-01-01

    The Unified Modeling Language (UML) is gaining wide popularity for the design of object-oriented systems. UML combines various object-oriented graphical design notations under one common framework. A major factor for the broad acceptance of UML is that it can be conveniently used in a highly iterative, Use Case (or scenario-based) process (although the process is not a part of UML). Here, the (pre-) requirements for the software are specified rather informally as Use Cases and a set of scenarios. A scenario can be seen as an individual trace of a software artifact. Besides first sketches of a class diagram to illustrate the static system breakdown, scenarios are a favorite way of communication with the customer, because scenarios describe concrete interactions between entities and are thus easy to understand. Scenarios with a high level of detail are often expressed as sequence diagrams. Later in the design and implementation stage (elaboration and implementation phases), a design of the system's behavior is often developed as a set of statecharts. From there (and the full-fledged class diagram), actual code development is started. Current commercial UML tools support this phase by providing code generators for class diagrams and statecharts. In practice, it can be observed that the transition from requirements to design to code is a highly iterative process. In this talk, a set of algorithms is presented which perform reasonable synthesis and transformations between different UML notations (sequence diagrams, Object Constraint Language (OCL) constraints, statecharts). More specifically, we will discuss the following transformations: Statechart synthesis, introduction of hierarchy, consistency of modifications, and "design-debugging".

  13. Design Factors Affecting the Reaction Time for Identifying Toilet Signs: A Preliminary Study.

    PubMed

    Chen, Yi-Lang; Sie, Cai-Cin

    2016-04-01

    This study focused on the manner in which design factors affect the reaction time for identifying toilet signs. Taiwanese university students and staff members (50 men, 50 women; M age = 23.5 year, SD = 5.7) participated in the study. The 36 toilet signs were modified on three factors (six presenting styles, two figure-ground exchanges, and three colors), and the reaction time data of all participants were collected when the signs were presented in a simulation onscreen. Participants were quickest when reading Chinese text, followed by graphics and English texts. The findings also showed that men and women had different reaction times across various design combinations. These findings can serve as a reference for practically designing toilet signs, since design factors can lead to difficulties with comprehension based on reaction time measurements. © The Author(s) 2016.

  14. Ballast and Subgrade requirements study : railroad track substructure - design and performance evaluation practices

    DOT National Transportation Integrated Search

    1983-06-30

    Earth materials--i.e., soil and rock--form the substructure (ballast, subballast, and subgrade) of all railroad track. In this report, the most suitable technology and design criteria as related to design of the substructure are identified based on a...

  15. 24 CFR 3280.904 - Specific requirements for designing the transportation system.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... the transportation system. 3280.904 Section 3280.904 Housing and Urban Development Regulations... SAFETY STANDARDS Transportation § 3280.904 Specific requirements for designing the transportation system. (a) General. The entire system (frame, drawbar and coupling mechanism, running gear assembly, and...

  16. 40 CFR 165.87 - Design and capacity requirements for existing structures.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... existing containment structure: (1) The containment structure must be constructed of steel, reinforced... existing structures. 165.87 Section 165.87 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Structures § 165.87 Design and capacity requirements for existing structures. (a) For all existing...

  17. 40 CFR 165.87 - Design and capacity requirements for existing structures.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... existing containment structure: (1) The containment structure must be constructed of steel, reinforced... existing structures. 165.87 Section 165.87 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Structures § 165.87 Design and capacity requirements for existing structures. (a) For all existing...

  18. 40 CFR 165.87 - Design and capacity requirements for existing structures.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... existing containment structure: (1) The containment structure must be constructed of steel, reinforced... existing structures. 165.87 Section 165.87 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Structures § 165.87 Design and capacity requirements for existing structures. (a) For all existing...

  19. 40 CFR 165.87 - Design and capacity requirements for existing structures.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... existing containment structure: (1) The containment structure must be constructed of steel, reinforced... existing structures. 165.87 Section 165.87 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... Structures § 165.87 Design and capacity requirements for existing structures. (a) For all existing...

  20. Facility Systems, Ground Support Systems, and Ground Support Equipment General Design Requirements

    NASA Technical Reports Server (NTRS)

    Thaxton, Eric A.; Mathews, Roger E.

    2014-01-01

    This standard establishes requirements and guidance for design and fabrication of ground systems (GS) that includes: ground support equipment (GSE), ground support systems (GSS), and facility ground support systems (F GSS) to provide uniform methods and processes for design and development of robust, safe, reliable, maintainable, supportable, and cost-effective GS in support of space flight and institutional programs and projects.

  1. Multi-level Expression Design Language: Requirement level (MEDL-R) system evaluation

    NASA Technical Reports Server (NTRS)

    1980-01-01

    An evaluation of the Multi-Level Expression Design Language Requirements Level (MEDL-R) system was conducted to determine whether it would be of use in the Goddard Space Flight Center Code 580 software development environment. The evaluation is based upon a study of the MEDL-R concept of requirement languages, the functions performed by MEDL-R, and the MEDL-R language syntax. Recommendations are made for changes to MEDL-R that would make it useful in the Code 580 environment.

  2. Identifying Effective Treatments from a Brief Experimental Analysis: Using a Single-Case Design Elements To Aid Decision Making.

    ERIC Educational Resources Information Center

    Martens, Brian K.; Eckert, Tanya L.; Bradley, Tracy A.; Ardoin, Scott P.

    1999-01-01

    Discusses the benefits of using brief experimental analysis to aid in treatment selection, identifies the forms of treatment that are most appropriate for this type of analysis, and describes key design elements for comparing treatments. Presents a study demonstrating the use of these design elements to identify an effective intervention for two…

  3. Satellite Power Systems (SPS) concept definition study, exhibit C. Volume 7: System/subsystem requirements data book

    NASA Technical Reports Server (NTRS)

    Hanley, G. M.

    1979-01-01

    Volume 7 of the Satellite Power Systems (SPS) Concept Definition Study final report summarizes the basic requirements used as a guide to systems analysis and is a basis for the selection of candidate SPS point design(s). Initially, these collected data reflected the level of definition resulting from the evaluation of a broad spectrum of SPS concepts. As the various concepts matured these requirements were updated to reflect the requirements identified for the projected satellite system/subsystem point design(s). The identified subsystem/systems requirements are defined, and where appropriate, recommendations for alternate approaches which may represent improved design features are presented. A more detailed discussion of the selected point design(s) will be found in Volume 2 of this report.

  4. Design and operations technologies - Integrating the pieces. [for future space systems design

    NASA Technical Reports Server (NTRS)

    Eldred, C. H.

    1979-01-01

    As major elements of life-cycle costs (LCC) having critical impacts on the initiation and utilization of future space programs, the areas of vehicle design and operations are reviewed in order to identify technology requirements. Common to both areas is the requirement for efficient integration of broad, complex systems. Operations technologies focus on the extension of space-based capabilities and cost reduction through the combination of innovative design, low-maintenance hardware, and increased manpower productivity. Design technologies focus on computer-aided techniques which increase productivity while maintaining a high degree of flexibility which enhances creativity and permits graceful design changes.

  5. HSI top-down requirements analysis for ship manpower reduction

    NASA Astrophysics Data System (ADS)

    Malone, Thomas B.; Bost, J. R.

    2000-11-01

    U.S. Navy ship acquisition programs such as DD 21 and CVNX are increasingly relying on top down requirements analysis (TDRA) to define and assess design approaches for workload and manpower reduction, and for ensuring required levels of human performance, reliability, safety, and quality of life at sea. The human systems integration (HSI) approach to TDRA begins with a function analysis which identifies the functions derived from the requirements in the Operational Requirements Document (ORD). The function analysis serves as the function baseline for the ship, and also supports the definition of RDT&E and Total Ownership Cost requirements. A mission analysis is then conducted to identify mission scenarios, again based on requirements in the ORD, and the Design Reference Mission (DRM). This is followed by a mission/function analysis which establishes the function requirements to successfully perform the ship's missions. Function requirements of major importance for HSI are information, performance, decision, and support requirements associated with each function. An allocation of functions defines the roles of humans and automation in performing the functions associated with a mission. Alternate design concepts, based on function allocation strategies, are then described, and task networks associated with the concepts are developed. Task network simulations are conducted to assess workloads and human performance capabilities associated with alternate concepts. An assessment of the affordability and risk associated with alternate concepts is performed, and manning estimates are developed for feasible design concepts.

  6. 2 CFR 1401.330 - How and when must I identify workplaces?

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... must identify all known workplaces under each DOI award. A failure to do so is a violation of your drug-free workplace requirements. You may identify the workplaces— (1) To the DOI official that is making... available for inspection upon request by DOI officials or their designated representatives. (b) Your...

  7. Design requirements for SRB production control system. Volume 3: Package evaluation, modification and hardware

    NASA Technical Reports Server (NTRS)

    1981-01-01

    The software package evaluation was designed to analyze commercially available, field-proven, production control or manufacturing resource planning management technology and software package. The analysis was conducted by comparing SRB production control software requirements and conceptual system design to software package capabilities. The methodology of evaluation and the findings at each stage of evaluation are described. Topics covered include: vendor listing; request for information (RFI) document; RFI response rate and quality; RFI evaluation process; and capabilities versus requirements.

  8. 49 CFR 178.277 - Requirements for the design, construction, inspection and testing of portable tanks intended for...

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... design pressure in the ASME Code, Section VIII (IBR, see § 171.7 of this subchapter). Holding time is the... 49 Transportation 3 2011-10-01 2011-10-01 false Requirements for the design, construction... FOR PACKAGINGS Specifications for Portable Tanks § 178.277 Requirements for the design, construction...

  9. 49 CFR 178.277 - Requirements for the design, construction, inspection and testing of portable tanks intended for...

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... design pressure in the ASME Code, Section VIII (IBR, see § 171.7 of this subchapter). Holding time is the... 49 Transportation 3 2012-10-01 2012-10-01 false Requirements for the design, construction... FOR PACKAGINGS Specifications for Portable Tanks § 178.277 Requirements for the design, construction...

  10. 49 CFR 178.277 - Requirements for the design, construction, inspection and testing of portable tanks intended for...

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... design pressure in the ASME Code, Section VIII (IBR, see § 171.7 of this subchapter). Holding time is the... 49 Transportation 3 2014-10-01 2014-10-01 false Requirements for the design, construction... FOR PACKAGINGS Specifications for Portable Tanks § 178.277 Requirements for the design, construction...

  11. 49 CFR 178.277 - Requirements for the design, construction, inspection and testing of portable tanks intended for...

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... design pressure in the ASME Code, Section VIII (IBR, see § 171.7 of this subchapter). Holding time is the... 49 Transportation 2 2010-10-01 2010-10-01 false Requirements for the design, construction... FOR PACKAGINGS Specifications for Portable Tanks § 178.277 Requirements for the design, construction...

  12. 49 CFR 178.277 - Requirements for the design, construction, inspection and testing of portable tanks intended for...

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... design pressure in the ASME Code, Section VIII (IBR, see § 171.7 of this subchapter). Holding time is the... 49 Transportation 3 2013-10-01 2013-10-01 false Requirements for the design, construction... FOR PACKAGINGS Specifications for Portable Tanks § 178.277 Requirements for the design, construction...

  13. Feasibility study of an Integrated Program for Aerospace vehicle Design (IPAD). Volume 2: The design process

    NASA Technical Reports Server (NTRS)

    Gillette, W. B.; Turner, M. J.; Southall, J. W.; Whitener, P. C.; Kowalik, J. S.

    1973-01-01

    The extent to which IPAD is to support the design process is identified. Case studies of representative aerospace products were developed as models to characterize the design process and to provide design requirements for the IPAD computing system.

  14. Design considerations for a compact infrared airborne imager to meet alignment and assembly requirements

    NASA Astrophysics Data System (ADS)

    Spencer, Harvey

    2002-09-01

    Helicopter mounted optical systems require compact packaging, good image performance (approaching the diffraction-limit), and must survive and operate in a rugged shock and thermal environment. The always-present requirement for low weight in an airborne sensor is paramount when considering the optical configuration. In addition, the usual list of optical requirements which must be satisfied within narrow tolerances, including field-of-view, vignetting, boresight, stray light rejection, and transmittance drive the optical design. It must be determined early in the engineering process which internal optical alignment adjustment provisions must be included, which may be included, and which will have to be omitted, since adding alignment features often conflicts with the requirement for optical component stability during operation and of course adds weight. When the system is to be modular and mates with another optical system, a telescope designed by different contractor in this case, additional alignment requirements between the two systems must be specified and agreed upon. Final delivered cost is certainly critical and "touch labor" assembly time must be determined and controlled. A clear plan for the alignment and assembly steps must be devised before the optical design can even begin to ensure that an arrangement of optical components amenable to adjustment is reached. The optical specification document should be written contemporaneously with the alignment plan to insure compatibility. The optics decisions that led to the success of this project are described and the final optical design is presented. A description of some unique pupil alignment adjustments, never performed by us in the infrared, is described.

  15. Structural design considerations for the beam transmission optical system

    NASA Technical Reports Server (NTRS)

    Macneal, Paul D.; Lou, Michael C.

    1993-01-01

    The paper describes the JPL study leading to a baseline design of the Beam Transmission Optical System (BTOS), designed for the delivery of laser energy from earth to space targets. The study identified the driving environmental and functional requirements; developed a conceptual design of the BTOS telescope; and performed static, thermal distortion, and model analyses to verify that these requirements are met. The study also identified major areas of concern which should be investigated further.

  16. Surface transport vehicles and supporting technology requirements

    NASA Technical Reports Server (NTRS)

    Matijevic, J. R.; Dias, W. C.; Levin, R. R.; Lindemann, R. A.; Smith, J. H.; Venkataraman, S. T.

    1992-01-01

    Requirements have been identified for surface transport vehicles which allow remote scientific exploration on the moon, as well as lunar resource recovery and emplacement of a permanent base on the lunar surface. Attention is given to the results of a design study which developed configurational concepts for lunar surface transport vehicles and inferred technology-development requirements, with a view to a phased program of implementation. Distinct benefits are noted for the design of simple vehicle platforms with high commonality, in order to reduce logistical-support requirements and maximize functional flexibility. Two generic vehicle classed are defined.

  17. Identifiers for the 21st century: How to design, provision, and reuse persistent identifiers to maximize utility and impact of life science data

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

    McMurry, Julie A.; Juty, Nick; Blomberg, Niklas

    In many disciplines, data are highly decentralized across thousands of online databases (repositories, registries, and knowledgebases). Wringing value from such databases depends on the discipline of data science and on the humble bricks and mortar that make integration possible; identifiers are a core component of this integration infrastructure. Drawing on our experience and on work by other groups, we outline 10 lessons we have learned about the identifier qualities and best practices that facilitate large-scale data integration. Specifically, we propose actions that identifier practitioners (database providers) should take in the design, provision and reuse of identifiers. We also outline themore » important considerations for those referencing identifiers in various circumstances, including by authors and data generators. While the importance and relevance of each lesson will vary by context, there is a need for increased awareness about how to avoid and manage common identifier problems, especially those related to persistence and web-accessibility/resolvability. We focus strongly on web-based identifiers in the life sciences; however, the principles are broadly relevant to other disciplines.« less

  18. Identifiers for the 21st century: How to design, provision, and reuse persistent identifiers to maximize utility and impact of life science data

    PubMed Central

    Juty, Nick; Blomberg, Niklas; Burdett, Tony; Conlin, Tom; Conte, Nathalie; Courtot, Mélanie; Deck, John; Dumontier, Michel; Fellows, Donal K.; Gonzalez-Beltran, Alejandra; Gormanns, Philipp; Grethe, Jeffrey; Hastings, Janna; Hériché, Jean-Karim; Hermjakob, Henning; Ison, Jon C.; Jimenez, Rafael C.; Jupp, Simon; Kunze, John; Laibe, Camille; Le Novère, Nicolas; Malone, James; Martin, Maria Jesus; McEntyre, Johanna R.; Morris, Chris; Muilu, Juha; Müller, Wolfgang; Rocca-Serra, Philippe; Sansone, Susanna-Assunta; Sariyar, Murat; Snoep, Jacky L.; Soiland-Reyes, Stian; Stanford, Natalie J.; Swainston, Neil; Washington, Nicole; Williams, Alan R.; Wimalaratne, Sarala M.; Winfree, Lilly M.; Wolstencroft, Katherine; Goble, Carole; Mungall, Christopher J.; Haendel, Melissa A.; Parkinson, Helen

    2017-01-01

    In many disciplines, data are highly decentralized across thousands of online databases (repositories, registries, and knowledgebases). Wringing value from such databases depends on the discipline of data science and on the humble bricks and mortar that make integration possible; identifiers are a core component of this integration infrastructure. Drawing on our experience and on work by other groups, we outline 10 lessons we have learned about the identifier qualities and best practices that facilitate large-scale data integration. Specifically, we propose actions that identifier practitioners (database providers) should take in the design, provision and reuse of identifiers. We also outline the important considerations for those referencing identifiers in various circumstances, including by authors and data generators. While the importance and relevance of each lesson will vary by context, there is a need for increased awareness about how to avoid and manage common identifier problems, especially those related to persistence and web-accessibility/resolvability. We focus strongly on web-based identifiers in the life sciences; however, the principles are broadly relevant to other disciplines. PMID:28662064

  19. Identifiers for the 21st century: How to design, provision, and reuse persistent identifiers to maximize utility and impact of life science data.

    PubMed

    McMurry, Julie A; Juty, Nick; Blomberg, Niklas; Burdett, Tony; Conlin, Tom; Conte, Nathalie; Courtot, Mélanie; Deck, John; Dumontier, Michel; Fellows, Donal K; Gonzalez-Beltran, Alejandra; Gormanns, Philipp; Grethe, Jeffrey; Hastings, Janna; Hériché, Jean-Karim; Hermjakob, Henning; Ison, Jon C; Jimenez, Rafael C; Jupp, Simon; Kunze, John; Laibe, Camille; Le Novère, Nicolas; Malone, James; Martin, Maria Jesus; McEntyre, Johanna R; Morris, Chris; Muilu, Juha; Müller, Wolfgang; Rocca-Serra, Philippe; Sansone, Susanna-Assunta; Sariyar, Murat; Snoep, Jacky L; Soiland-Reyes, Stian; Stanford, Natalie J; Swainston, Neil; Washington, Nicole; Williams, Alan R; Wimalaratne, Sarala M; Winfree, Lilly M; Wolstencroft, Katherine; Goble, Carole; Mungall, Christopher J; Haendel, Melissa A; Parkinson, Helen

    2017-06-01

    In many disciplines, data are highly decentralized across thousands of online databases (repositories, registries, and knowledgebases). Wringing value from such databases depends on the discipline of data science and on the humble bricks and mortar that make integration possible; identifiers are a core component of this integration infrastructure. Drawing on our experience and on work by other groups, we outline 10 lessons we have learned about the identifier qualities and best practices that facilitate large-scale data integration. Specifically, we propose actions that identifier practitioners (database providers) should take in the design, provision and reuse of identifiers. We also outline the important considerations for those referencing identifiers in various circumstances, including by authors and data generators. While the importance and relevance of each lesson will vary by context, there is a need for increased awareness about how to avoid and manage common identifier problems, especially those related to persistence and web-accessibility/resolvability. We focus strongly on web-based identifiers in the life sciences; however, the principles are broadly relevant to other disciplines.

  20. Identifiers for the 21st century: How to design, provision, and reuse persistent identifiers to maximize utility and impact of life science data

    DOE PAGES

    McMurry, Julie A.; Juty, Nick; Blomberg, Niklas; ...

    2017-06-29

    In many disciplines, data are highly decentralized across thousands of online databases (repositories, registries, and knowledgebases). Wringing value from such databases depends on the discipline of data science and on the humble bricks and mortar that make integration possible; identifiers are a core component of this integration infrastructure. Drawing on our experience and on work by other groups, we outline 10 lessons we have learned about the identifier qualities and best practices that facilitate large-scale data integration. Specifically, we propose actions that identifier practitioners (database providers) should take in the design, provision and reuse of identifiers. We also outline themore » important considerations for those referencing identifiers in various circumstances, including by authors and data generators. While the importance and relevance of each lesson will vary by context, there is a need for increased awareness about how to avoid and manage common identifier problems, especially those related to persistence and web-accessibility/resolvability. We focus strongly on web-based identifiers in the life sciences; however, the principles are broadly relevant to other disciplines.« less

  1. Influence of the astrophysical requirements on dilution refrigerator design

    NASA Astrophysics Data System (ADS)

    Sirbi, Adriana; Pouilloux, Benjamin; Benoit, Alain; Lamarre, Jean-Michel

    1999-12-01

    A 300 K to 0.1 K space prototype is developed in cooperation with CRTBT, IAS Air Liquide and RAL, under CNES and ESA contracts, to demonstrate the feasibility of such a cooling system. The heart of the system is a 4 K to 0.1 K open cycle dilution refrigerator circulating 3He and 4He. All the tests are now completed. The design of this system is chosen like the nominal solution for PLANCK/HFI instrument. Since scientific requirements have changed, the design of the prototype has to be adjusted to receive the focal plane of HFI (High Frequency Instrument) instrument of PLANCK. The main goal is to optimise 3He consumption without degrading both mechanical and thermal performances. This paper presents the prototype architecture, the dilution refrigerator and the associated tests. The suitability to PLANCK mission is also assessed.

  2. Requirements and concept design for large earth survey telescope for SEOS

    NASA Technical Reports Server (NTRS)

    Mailhot, P.; Bisbee, J.

    1975-01-01

    The efforts of a one year program of Requirements Analysis and Conceptual Design for the Large Earth Survey Telescope for the Synchronous Earth Observatory Satellite is summarized. A 1.4 meter aperture Cassegrain telescope with 0.6 deg field of view is shown to do an excellent job in satisfying the observational requirements for a wide range of earth resources and meteorological applications. The telescope provides imagery or thermal mapping in ten spectral bands at one time in a field sharing grouping of linear detector arrays. Pushbroom scanning is accomplished by spacecraft slew.

  3. 14 CFR 91.1031 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 2 2011-01-01 2011-01-01 false Pilot in command or second in command... RULES Fractional Ownership Operations Program Management § 91.1031 Pilot in command or second in command: Designation required. (a) Each program manager must designate a— (1) Pilot in command for each program flight...

  4. 14 CFR 135.109 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 14 Aeronautics and Space 3 2011-01-01 2011-01-01 false Pilot in command or second in command... ON BOARD SUCH AIRCRAFT Flight Operations § 135.109 Pilot in command or second in command: Designation required. (a) Each certificate holder shall designate a— (1) Pilot in command for each flight; and (2...

  5. 14 CFR 135.109 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 3 2013-01-01 2013-01-01 false Pilot in command or second in command... ON BOARD SUCH AIRCRAFT Flight Operations § 135.109 Pilot in command or second in command: Designation required. (a) Each certificate holder shall designate a— (1) Pilot in command for each flight; and (2...

  6. 14 CFR 91.1031 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 2 2012-01-01 2012-01-01 false Pilot in command or second in command... RULES Fractional Ownership Operations Program Management § 91.1031 Pilot in command or second in command: Designation required. (a) Each program manager must designate a— (1) Pilot in command for each program flight...

  7. 14 CFR 91.1031 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 2 2010-01-01 2010-01-01 false Pilot in command or second in command... RULES Fractional Ownership Operations Program Management § 91.1031 Pilot in command or second in command: Designation required. (a) Each program manager must designate a— (1) Pilot in command for each program flight...

  8. 14 CFR 135.109 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 3 2014-01-01 2014-01-01 false Pilot in command or second in command... ON BOARD SUCH AIRCRAFT Flight Operations § 135.109 Pilot in command or second in command: Designation required. (a) Each certificate holder shall designate a— (1) Pilot in command for each flight; and (2...

  9. 14 CFR 135.109 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 14 Aeronautics and Space 3 2012-01-01 2012-01-01 false Pilot in command or second in command... ON BOARD SUCH AIRCRAFT Flight Operations § 135.109 Pilot in command or second in command: Designation required. (a) Each certificate holder shall designate a— (1) Pilot in command for each flight; and (2...

  10. 14 CFR 135.109 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 14 Aeronautics and Space 3 2010-01-01 2010-01-01 false Pilot in command or second in command... ON BOARD SUCH AIRCRAFT Flight Operations § 135.109 Pilot in command or second in command: Designation required. (a) Each certificate holder shall designate a— (1) Pilot in command for each flight; and (2...

  11. 14 CFR 91.1031 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 14 Aeronautics and Space 2 2014-01-01 2014-01-01 false Pilot in command or second in command... RULES Fractional Ownership Operations Program Management § 91.1031 Pilot in command or second in command: Designation required. (a) Each program manager must designate a— (1) Pilot in command for each program flight...

  12. 14 CFR 91.1031 - Pilot in command or second in command: Designation required.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 14 Aeronautics and Space 2 2013-01-01 2013-01-01 false Pilot in command or second in command... RULES Fractional Ownership Operations Program Management § 91.1031 Pilot in command or second in command: Designation required. (a) Each program manager must designate a— (1) Pilot in command for each program flight...

  13. 23 CFR 636.116 - What organizational conflict of interest requirements apply to design-build projects?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... apply to design-build projects? 636.116 Section 636.116 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING General § 636.116 What organizational conflict of interest requirements apply to design-build projects? (a) State...

  14. 23 CFR 636.116 - What organizational conflict of interest requirements apply to design-build projects?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... apply to design-build projects? 636.116 Section 636.116 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING General § 636.116 What organizational conflict of interest requirements apply to design-build projects? (a) State...

  15. 23 CFR 636.116 - What organizational conflict of interest requirements apply to design-build projects?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... apply to design-build projects? 636.116 Section 636.116 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING General § 636.116 What organizational conflict of interest requirements apply to design-build projects? (a) State...

  16. 23 CFR 636.116 - What organizational conflict of interest requirements apply to design-build projects?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... apply to design-build projects? 636.116 Section 636.116 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING General § 636.116 What organizational conflict of interest requirements apply to design-build projects? (a) State...

  17. Satellite Ocean Color Sensor Design Concepts and Performance Requirements

    NASA Technical Reports Server (NTRS)

    McClain, Charles R.; Meister, Gerhard; Monosmith, Bryan

    2014-01-01

    800 nanometers with three additional discrete near infrared (NIR) and shortwave infrared (SWIR) ocean aerosol correction bands. Also, to avoid drift in sensor sensitivity from being interpreted as environmental change, climate change research requires rigorous monitoring of sensor stability. For SeaWiFS, monthly lunar imaging accurately tracked stability at an accuracy of approximately 0.1% that allowed the data to be used for climate studies [2]. It is now acknowledged by the international community that future missions and sensor designs need to accommodate lunar calibrations. An overview of ocean color remote sensing and a review of the progress made in ocean color remote sensing and the variety of research applications derived from global satellite ocean color data are provided. The purpose of this chapter is to discuss the design options for ocean color satellite radiometers, performance and testing criteria, and sensor components (optics, detectors, electronics, etc.) that must be integrated into an instrument concept. These ultimately dictate the quality and quantity of data that can be delivered as a trade against mission cost. Historically, science and sensor technology have advanced in a "leap-frog" manner in that sensor design requirements for a mission are defined many years before a sensor is launched and by the end of the mission, perhaps 15-20 years later, science applications and requirements are well beyond the capabilities of the sensor. Section 3 provides a summary of historical mission science objectives and sensor requirements. This progression is expected to continue in the future as long as sensor costs can be constrained to affordable levels and still allow the incorporation of new technologies without incurring unacceptable risk to mission success. The IOCCG Report Number 13 discusses future ocean biology mission Level-1 requirements in depth.

  18. INO340 telescope control system: middleware requirements, design, and evaluation

    NASA Astrophysics Data System (ADS)

    Shalchian, Hengameh; Ravanmehr, Reza

    2016-07-01

    The INO340 Control System (INOCS) is being designed in terms of a distributed real-time architecture. The real-time (soft and firm) nature of many processes inside INOCS causes the communication paradigm between its different components to be time-critical and sensitive. For this purpose, we have chosen the Data Distribution Service (DDS) standard as the communications middleware which is itself based on the publish-subscribe paradigm. In this paper, we review and compare the main middleware types, and then we illustrate the middleware architecture of INOCS and its specific requirements. Finally, we present the experimental results, performed to evaluate our middleware in order to ensure that it meets our requirements.

  19. Multi-angle Imaging Spectro Radiometer (MISR) Design Issues Influened by Performance Requirements

    NASA Technical Reports Server (NTRS)

    Bruegge, C. J.; White, M. L.; Chrien, N. C. L.; Villegas, E. B.; Raouf, N.

    1993-01-01

    The design of an Earth Remote Sensing Sensor, such as the Multi-angle Imaging SpectroRadiometer (MISR), begins with a set of science requirements and is quickly followed by a set of instrument specifications.

  20. 23 CFR 636.210 - What requirements apply to projects which use the modified design-build procedure?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 23 Highways 1 2011-04-01 2011-04-01 false What requirements apply to projects which use the modified design-build procedure? 636.210 Section 636.210 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION ENGINEERING AND TRAFFIC OPERATIONS DESIGN-BUILD CONTRACTING Selection Procedures, Award Criteria § 636.210 What requirements...

  1. 46 CFR 162.027-2 - Design, construction, testing and marking requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 46 Shipping 6 2011-10-01 2011-10-01 false Design, construction, testing and marking requirements. 162.027-2 Section 162.027-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL ENGINEERING EQUIPMENT Combination Solid Stream and Water Spray Firehose Nozzles §...

  2. 46 CFR 162.027-2 - Design, construction, testing and marking requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 46 Shipping 6 2014-10-01 2014-10-01 false Design, construction, testing and marking requirements. 162.027-2 Section 162.027-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL ENGINEERING EQUIPMENT Combination Solid Stream and Water Spray Firehose Nozzles §...

  3. 46 CFR 162.027-2 - Design, construction, testing and marking requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 46 Shipping 6 2013-10-01 2013-10-01 false Design, construction, testing and marking requirements. 162.027-2 Section 162.027-2 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) EQUIPMENT, CONSTRUCTION, AND MATERIALS: SPECIFICATIONS AND APPROVAL ENGINEERING EQUIPMENT Combination Solid Stream and Water Spray Firehose Nozzles §...

  4. Space Construction Automated Fabrication Experiment Definition Study (SCAFEDS). Volume 3: Requirements

    NASA Technical Reports Server (NTRS)

    1978-01-01

    The performance, design, and verification requirements for the space construction automated fabrication experiment (SCAFE) are defined and the source of each imposed or derived requirement is identified.

  5. 41 CFR 102-36.435 - How do we identify Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring demilitarization? 102-36.435... Personal Property Whose Disposal Requires Special Handling Munitions List Items/commerce Control List Items (mlis/cclis) § 102-36.435 How do we identify Munitions List Items (MLIs)/Commerce Control List Items...

  6. 41 CFR 102-36.435 - How do we identify Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring...

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring demilitarization? 102-36.435... Personal Property Whose Disposal Requires Special Handling Munitions List Items/commerce Control List Items (mlis/cclis) § 102-36.435 How do we identify Munitions List Items (MLIs)/Commerce Control List Items...

  7. 41 CFR 102-36.435 - How do we identify Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring...

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring demilitarization? 102-36.435... Personal Property Whose Disposal Requires Special Handling Munitions List Items/commerce Control List Items (mlis/cclis) § 102-36.435 How do we identify Munitions List Items (MLIs)/Commerce Control List Items...

  8. 41 CFR 102-36.435 - How do we identify Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring...

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring demilitarization? 102-36.435... Personal Property Whose Disposal Requires Special Handling Munitions List Items/commerce Control List Items (mlis/cclis) § 102-36.435 How do we identify Munitions List Items (MLIs)/Commerce Control List Items...

  9. 41 CFR 102-36.435 - How do we identify Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... Munitions List Items (MLIs)/Commerce Control List Items (CCLIs) requiring demilitarization? 102-36.435... Personal Property Whose Disposal Requires Special Handling Munitions List Items/commerce Control List Items (mlis/cclis) § 102-36.435 How do we identify Munitions List Items (MLIs)/Commerce Control List Items...

  10. 21 CFR 111.60 - What are the design requirements for the production and process control system?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... to Establish a Production and Process Control System § 111.60 What are the design requirements for... 21 Food and Drugs 2 2012-04-01 2012-04-01 false What are the design requirements for the production and process control system? 111.60 Section 111.60 Food and Drugs FOOD AND DRUG ADMINISTRATION...

  11. 21 CFR 111.60 - What are the design requirements for the production and process control system?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... to Establish a Production and Process Control System § 111.60 What are the design requirements for... 21 Food and Drugs 2 2013-04-01 2013-04-01 false What are the design requirements for the production and process control system? 111.60 Section 111.60 Food and Drugs FOOD AND DRUG ADMINISTRATION...

  12. 21 CFR 111.60 - What are the design requirements for the production and process control system?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... to Establish a Production and Process Control System § 111.60 What are the design requirements for... 21 Food and Drugs 2 2011-04-01 2011-04-01 false What are the design requirements for the production and process control system? 111.60 Section 111.60 Food and Drugs FOOD AND DRUG ADMINISTRATION...

  13. 21 CFR 111.60 - What are the design requirements for the production and process control system?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... to Establish a Production and Process Control System § 111.60 What are the design requirements for... 21 Food and Drugs 2 2014-04-01 2014-04-01 false What are the design requirements for the production and process control system? 111.60 Section 111.60 Food and Drugs FOOD AND DRUG ADMINISTRATION...

  14. 21 CFR 111.60 - What are the design requirements for the production and process control system?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... to Establish a Production and Process Control System § 111.60 What are the design requirements for... 21 Food and Drugs 2 2010-04-01 2010-04-01 false What are the design requirements for the production and process control system? 111.60 Section 111.60 Food and Drugs FOOD AND DRUG ADMINISTRATION...

  15. 46 CFR 11.524 - Service requirements for designated duty engineer of steam and/or motor vessels.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... steam and/or motor vessels. 11.524 Section 11.524 Shipping COAST GUARD, DEPARTMENT OF HOMELAND SECURITY... Engineer Officer § 11.524 Service requirements for designated duty engineer of steam and/or motor vessels... requirements for endorsements as DDE are: (1) For designated duty engineer of steam and/or motor vessels of any...

  16. Study of curved glass photovoltaic module and module electrical isolation design requirements

    NASA Technical Reports Server (NTRS)

    1980-01-01

    The design of a 1.2 by 2.4 m curved glass superstrate and support clip assembly is presented, along with the results of finite element computer analysis and a glass industry survey conducted to assess the technical and economic feasibility of the concept. Installed costs for four curved glass module array configurations are estimated and compared with cost previously reported for comparable flat glass module configurations. Electrical properties of candidate module encapsulation systems are evaluated along with present industry practice for the design and testing of electrical insulation systems. Electric design requirements for module encapsulation systems are also discussed.

  17. Study of curved glass photovoltaic module and module electrical isolation design requirements

    NASA Astrophysics Data System (ADS)

    1980-06-01

    The design of a 1.2 by 2.4 m curved glass superstrate and support clip assembly is presented, along with the results of finite element computer analysis and a glass industry survey conducted to assess the technical and economic feasibility of the concept. Installed costs for four curved glass module array configurations are estimated and compared with cost previously reported for comparable flat glass module configurations. Electrical properties of candidate module encapsulation systems are evaluated along with present industry practice for the design and testing of electrical insulation systems. Electric design requirements for module encapsulation systems are also discussed.

  18. Interface, information, interaction: a narrative review of design and functional requirements for clinical decision support.

    PubMed

    Miller, Kristen; Mosby, Danielle; Capan, Muge; Kowalski, Rebecca; Ratwani, Raj; Noaiseh, Yaman; Kraft, Rachel; Schwartz, Sanford; Weintraub, William S; Arnold, Ryan

    2018-05-01

    Provider acceptance and associated patient outcomes are widely discussed in the evaluation of clinical decision support systems (CDSSs), but critical design criteria for tools have generally been overlooked. The objective of this work is to inform electronic health record alert optimization and clinical practice workflow by identifying, compiling, and reporting design recommendations for CDSS to support the efficient, effective, and timely delivery of high-quality care. A narrative review was conducted from 2000 to 2016 in PubMed and The Journal of Human Factors and Ergonomics Society to identify papers that discussed/recommended design features of CDSSs that are associated with the success of these systems. Fourteen papers were included as meeting the criteria and were found to have a total of 42 unique recommendations; 11 were classified as interface features, 10 as information features, and 21 as interaction features. Features are defined and described, providing actionable guidance that can be applied to CDSS development and policy. To our knowledge, no reviews have been completed that discuss/recommend design features of CDSS at this scale, and thus we found that this was important for the body of literature. The recommendations identified in this narrative review will help to optimize design, organization, management, presentation, and utilization of information through presentation, content, and function. The designation of 3 categories (interface, information, and interaction) should be further evaluated to determine the critical importance of the categories. Future work will determine how to prioritize them with limited resources for designers and developers in order to maximize the clinical utility of CDSS. This review will expand the field of knowledge and provide a novel organization structure to identify key recommendations for CDSS.

  19. A Methodology to Assess the Capability of Engine Designs to Meet Closed-Loop Performance and Operability Requirements

    NASA Technical Reports Server (NTRS)

    Zinnecker, Alicia M.; Csank, Jeffrey

    2015-01-01

    Designing a closed-loop controller for an engine requires balancing trade-offs between performance and operability of the system. One such trade-off is the relationship between the 95 percent response time and minimum high-pressure compressor (HPC) surge margin (SM) attained during acceleration from idle to takeoff power. Assuming a controller has been designed to meet some specification on response time and minimum HPC SM for a mid-life (nominal) engine, there is no guarantee that these limits will not be violated as the engine ages, particularly as it reaches the end of its life. A characterization for the uncertainty in this closed-loop system due to aging is proposed that defines elliptical boundaries to estimate worst-case performance levels for a given control design point. The results of this characterization can be used to identify limiting design points that bound the possible controller designs yielding transient results that do not exceed specified limits in response time or minimum HPC SM. This characterization involves performing Monte Carlo simulation of the closed-loop system with controller constructed for a set of trial design points and developing curve fits to describe the size and orientation of each ellipse; a binary search procedure is then employed that uses these fits to identify the limiting design point. The method is demonstrated through application to a generic turbofan engine model in closed-loop with a simplified controller; it is found that the limit for which each controller was designed was exceeded by less than 4.76 percent. Extension of the characterization to another trade-off, that between the maximum high-pressure turbine (HPT) entrance temperature and minimum HPC SM, showed even better results: the maximum HPT temperature was estimated within 0.76 percent. Because of the accuracy in this estimation, this suggests another limit that may be taken into consideration during design and analysis. It also demonstrates the extension

  20. A Methodology to Assess the Capability of Engine Designs to Meet Closed-loop Performance and Operability Requirements

    NASA Technical Reports Server (NTRS)

    Zinnecker, Alicia M.; Csank, Jeffrey T.

    2015-01-01

    Designing a closed-loop controller for an engine requires balancing trade-offs between performance and operability of the system. One such trade-off is the relationship between the 95% response time and minimum high-pressure compressor (HPC) surge margin (SM) attained during acceleration from idle to takeoff power. Assuming a controller has been designed to meet some specification on response time and minimum HPC SM for a mid-life (nominal) engine, there is no guarantee that these limits will not be violated as the engine ages, particularly as it reaches the end of its life. A characterization for the uncertainty in this closed-loop system due to aging is proposed that defines elliptical boundaries to estimate worst-case performance levels for a given control design point. The results of this characterization can be used to identify limiting design points that bound the possible con- troller designs yielding transient results that do not exceed specified limits in response time or minimum HPC SM. This characterization involves performing Monte Carlo simulation of the closed-loop system with controller constructed for a set of trial design points and developing curve fits to describe the size and orientation of each ellipse; a binary search procedure is then employed that uses these fits to identify the limiting design point. The method is demonstrated through application to a generic turbofan engine model in closed- loop with a simplified controller; it is found that the limit for which each controller was designed was exceeded by less than 4.76%. Extension of the characterization to another trade-off, that between the maximum high-pressure turbine (HPT) entrance temperature and minimum HPC SM, showed even better results: the maximum HPT temperature was estimated within 0.76%. Because of the accuracy in this estimation, this suggests another limit that may be taken into consideration during design and analysis. It also demonstrates the extension of the

  1. Rapid Prototyping in Instructional Design: Creating Competencies

    ERIC Educational Resources Information Center

    Fulton, Carolyn D.

    2010-01-01

    Instructional designers working in rapid prototyping environments currently do not have a list of competencies that help to identify the knowledge, skills, and attitudes (KSAs) required in these workplaces. This qualitative case study used multiple cases in an attempt to identify rapid prototyping competencies required in a rapid prototyping…

  2. Requirements for the design and implementation of checklists for surgical processes.

    PubMed

    Verdaasdonk, E G G; Stassen, L P S; Widhiasmara, P P; Dankelman, J

    2009-04-01

    The use of checklists is a promising strategy for improving patient safety in all types of surgical processes inside and outside the operating room. This article aims to provide requirements and implementation of checklists for surgical processes. The literature on checklist use in the operating room was reviewed based on research using Medline, Pubmed, and Google Scholar. Although all the studies showed positive effects and important benefits such as improved team cohesion, improved awareness of safety issues, and reduction of errors, their number still is limited. The motivation of team members is considered essential for compliance. Currently, no general guidelines exist for checklist design in the surgical field. Based on the authors' experiences and on guidelines used in the aviation industry, requirements for the checklist design are proposed. The design depends on the checklist purpose, philosophy, and method chosen. The methods consist of the "call-do-response" approach," the "do-verify" approach, or a combination of both. The advantages and disadvantages of paper versus electronic solutions are discussed. Furthermore, a step-by-step strategy of how to implement a checklist in the clinical situation is suggested. The use of structured checklists in surgical processes is most likely to be effective because it standardizes human performance and ensures that procedures are followed correctly instead of relying on human memory alone. Several studies present promising and positive first results, providing a solid basis for further investigation. Future research should focus on the effect of various checklist designs and strategies to ensure maximal compliance.

  3. Conversion from Tree to Graph Representation of Requirements

    NASA Technical Reports Server (NTRS)

    Mayank, Vimal; Everett, David Frank; Shmunis, Natalya; Austin, Mark

    2009-01-01

    A procedure and software to implement the procedure have been devised to enable conversion from a tree representation to a graph representation of the requirements governing the development and design of an engineering system. The need for this procedure and software and for other requirements-management tools arises as follows: In systems-engineering circles, it is well known that requirements- management capability improves the likelihood of success in the team-based development of complex systems involving multiple technological disciplines. It is especially desirable to be able to visualize (in order to identify and manage) requirements early in the system- design process, when errors can be corrected most easily and inexpensively.

  4. Synthesis from Design Requirements of a Hybrid System for Transport Aircraft Longitudinal Control. Volume 1

    NASA Technical Reports Server (NTRS)

    Hynes, Charles S.; Hardy, Gordon H.; Sherry, Lance

    2007-01-01

    Volume I of this report presents a new method for synthesizing hybrid systems directly from design requirements, and applies the method to design of a hybrid system for longitudinal control of transport aircraft. The resulting system satisfies general requirement for safety and effectiveness specified a priori, enabling formal validation to be achieved. Volume II contains seven appendices intended to make the report accessible to readers with backgrounds in human factors, fli ght dynamics and control. and formal logic. Major design goals are (1) system desi g n integrity based on proof of correctness at the design level, (2), significant simplification and cost reduction in system development and certification, and (3) improved operational efficiency, with significant alleviation of human-factors problems encountered by pilots in current transport aircraft. This report provides for the first time a firm technical basis for criteria governing design and certification of avionic systems for transport aircraft. It should be of primary interest to designers of next-generation avionic systems.

  5. Synthesis from Design Requirements of a Hybrid System for Transport Aircraft Longitudinal Control. Volume 2

    NASA Technical Reports Server (NTRS)

    Hynes, Charles S.; Hardy, Gordon H.; Sherry, Lance

    2007-01-01

    Volume I of this report presents a new method for synthesizing hybrid systems directly from desi gn requirements, and applies the method to design of a hybrid system for longitudinal control of transport aircraft. The resulting system satisfies general requirement for safety and effectiveness specified a priori, enabling formal validation to be achieved. Volume II contains seven appendices intended to make the report accessible to readers with backgrounds in human factors, flight dynamics and control, and formal logic. Major design goals are (1) system design integrity based on proof of correctness at the design level, (2) significant simplification and cost reduction in system development and certification, and (3) improved operational efficiency, with significant alleviation of human-factors problems encountered by pilots in current transport aircraft. This report provides for the first time a firm technical basis for criteria governing design and certification of avionic systems for transport aircraft. It should be of primary interest to designers of next-generation avionic systems.

  6. Spacecraft radiators for advanced mission requirements

    NASA Technical Reports Server (NTRS)

    Leach, J. W.

    1980-01-01

    Design requirements for spacecraft heat rejection systems are identified, and their impact on the construction of conventional pumped fluid and hybrid heat pipe/pumped fluid radiators is evaluated. Heat rejection systems to improve the performance or reduce the cost of the spacecraft are proposed. Heat rejection requirements which are large compared to those of existing systems and mission durations which are relatively long, are discussed.

  7. Identifying the Functional Requirements for an Arizona Astronomy Data Hub (AADH)

    NASA Astrophysics Data System (ADS)

    Stahlman, G.; Heidorn, P. B.

    2015-12-01

    Astronomy data represent a curation challenge for information managers, as well as for astronomers. Extracting knowledge from these heterogeneous and complex datasets is particularly complicated and requires both interdisciplinary and domain expertise to accomplish true curation, with an overall goal of facilitating reproducible science through discoverability and persistence. A group of researchers and professional staff at the University of Arizona held several meetings during the spring of 2015 about astronomy data and the role of the university in curation of that data. The group decided that it was critical to obtain a broader consensus on the needs of the community. With assistance from a Start for Success grant provided by the University of Arizona Office of Research and Discovery and funding from the American Astronomical Society (AAS), a workshop was held in early July 2015, with 28 participants plus 4 organizers in attendance. Representing University researchers as well as astronomical facilities and a scholarly society, the group verified that indeed there is a problem with the long-term curation of some astronomical data not associated with major facilities, and that a repository or "data hub" with the correct functionality could facilitate research and the preservation and use of astronomy data. The workshop members also identified a set of next steps, including the identification of possible data and metadata to be included in the Hub. The participants further helped to identify additional information that must be gathered before construction of the AADH could begin, including identifying significant datasets that do not currently have sufficient preservation and dissemination infrastructure, as well as some data associated with journal publications and the broader context of the data beyond that directly published in the journals. Workshop participants recommended that a set of grant proposal should be developed that ensures community buy-in and

  8. Shuttle mission simulator hardware conceptual design report

    NASA Technical Reports Server (NTRS)

    Burke, J. F.

    1973-01-01

    The detailed shuttle mission simulator hardware requirements are discussed. The conceptual design methods, or existing technology, whereby those requirements will be fulfilled are described. Information of a general nature on the total design problem plus specific details on how these requirements are to be satisfied are reported. The configuration of the simulator is described and the capabilities for various types of training are identified.

  9. 7 CFR 1724.51 - Design requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...) Transmission lines. (1) All transmission line design data must be approved by RUS. (2) Design data consists of all significant design features, including, but not limited to, transmission line design data summary..., or steel towers, in which load information will be used to purchase the structures, the design data...

  10. Space Station Furnace Facility. Volume 1: Requirements definition and conceptual design study, executive summary

    NASA Technical Reports Server (NTRS)

    1992-01-01

    The Space Station Freedom Furnace (SSFF) Study was awarded on June 2, 1989, to Teledyne Brown Engineering (TBE) to define an advanced facility for materials research in the microgravity environment of Space Station Freedom (SSF). The SSFF will be designed for research in the solidification of metals and alloys, the crystal growth of electronic and electro-optical materials, and research in glasses and ceramics. The SSFF is one of the first 'facility' class payloads planned by the Microgravity Science and Applications Division (MSAD) of the Office of Space Science and Applications of NASA Headquarters. This facility is planned for early deployment during man-tended operations of the SSF with continuing operations through the Permanently Manned Configuration (PMC). The SSFF will be built around a general 'Core' facility which provides common support functions not provided by SSF, common subsystems which are best centralized, and common subsystems which are best distributed with each experiment module. The intent of the facility approach is to reduce the overall cost associated with implementing and operating a variety of experiments. This is achieved by reducing the launch mass and simplifying the hardware development and qualification processes associated with each experiment. The Core will remain on orbit and will require only periodic maintenance and upgrading while new Furnace Modules, samples, and consumables are developed, qualified, and transported to the SSF. The SSFF Study was divided into two phases: phase 1, a definition study phase, and phase 2, a design and development phase. The definition phase 1 is addressed. Phase 1 was divided into two parts. In the first part, the basic part of the effort, covered the preliminary definition and assessment of requirements; conceptual design of the SSFF; fabrication of mockups; and the preparation for and support of the Conceptual Design Review (CoDR). The second part, the option part, covered requirements update and

  11. Designing Flat-Plate Photovoltaic Arrays

    NASA Technical Reports Server (NTRS)

    Ross, R. G., Jr.

    1984-01-01

    Report presents overview of state of art in design techniques for flat-plate solar photovoltaic modules and arrays. Paper discusses design requirements, design analyses, and test methods identified and developed for this technology over past several years in effort to reduce cost and improve utility and reliability for broad spectrum of terrestrial applications.

  12. Designing for Change: Minimizing the Impact of Changing Requirements in the Later Stages of a Spaceflight Software Project

    NASA Technical Reports Server (NTRS)

    Allen, B. Danette

    1998-01-01

    In the traditional 'waterfall' model of the software project life cycle, the Requirements Phase ends and flows into the Design Phase, which ends and flows into the Development Phase. Unfortunately, the process rarely, if ever, works so smoothly in practice. Instead, software developers often receive new requirements, or modifications to the original requirements, well after the earlier project phases have been completed. In particular, projects with shorter than ideal schedules are highly susceptible to frequent requirements changes, as the software requirements analysis phase is often forced to begin before the overall system requirements and top-level design are complete. This results in later modifications to the software requirements, even though the software design and development phases may be complete. Requirements changes received in the later stages of a software project inevitably lead to modification of existing developed software. Presented here is a series of software design techniques that can greatly reduce the impact of last-minute requirements changes. These techniques were successfully used to add built-in flexibility to two complex software systems in which the requirements were expected to (and did) change frequently. These large, real-time systems were developed at NASA Langley Research Center (LaRC) to test and control the Lidar In-Space Technology Experiment (LITE) instrument which flew aboard the space shuttle Discovery as the primary payload on the STS-64 mission.

  13. Optimizing trial design in pharmacogenetics research: comparing a fixed parallel group, group sequential, and adaptive selection design on sample size requirements.

    PubMed

    Boessen, Ruud; van der Baan, Frederieke; Groenwold, Rolf; Egberts, Antoine; Klungel, Olaf; Grobbee, Diederick; Knol, Mirjam; Roes, Kit

    2013-01-01

    Two-stage clinical trial designs may be efficient in pharmacogenetics research when there is some but inconclusive evidence of effect modification by a genomic marker. Two-stage designs allow to stop early for efficacy or futility and can offer the additional opportunity to enrich the study population to a specific patient subgroup after an interim analysis. This study compared sample size requirements for fixed parallel group, group sequential, and adaptive selection designs with equal overall power and control of the family-wise type I error rate. The designs were evaluated across scenarios that defined the effect sizes in the marker positive and marker negative subgroups and the prevalence of marker positive patients in the overall study population. Effect sizes were chosen to reflect realistic planning scenarios, where at least some effect is present in the marker negative subgroup. In addition, scenarios were considered in which the assumed 'true' subgroup effects (i.e., the postulated effects) differed from those hypothesized at the planning stage. As expected, both two-stage designs generally required fewer patients than a fixed parallel group design, and the advantage increased as the difference between subgroups increased. The adaptive selection design added little further reduction in sample size, as compared with the group sequential design, when the postulated effect sizes were equal to those hypothesized at the planning stage. However, when the postulated effects deviated strongly in favor of enrichment, the comparative advantage of the adaptive selection design increased, which precisely reflects the adaptive nature of the design. Copyright © 2013 John Wiley & Sons, Ltd.

  14. Recursive Deadbeat Controller Design

    NASA Technical Reports Server (NTRS)

    Juang, Jer-Nan; Phan, Minh Q.

    1997-01-01

    This paper presents a recursive algorithm for a deadbeat predictive controller design. The method combines together the concepts of system identification and deadbeat controller designs. It starts with the multi-step output prediction equation and derives the control force in terms of past input and output time histories. The formulation thus derived satisfies simultaneously system identification and deadbeat controller design requirements. As soon as the coefficient matrices are identified satisfying the output prediction equation, no further work is required to compute the deadbeat control gain matrices. The method can be implemented recursively just as any typical recursive system identification techniques.

  15. A modal H∞-norm-based performance requirement for damage-tolerant active controller design

    NASA Astrophysics Data System (ADS)

    Genari, Helói F. G.; Mechbal, Nazih; Coffignal, Gérard; Nóbrega, Eurípedes G. O.

    2017-04-01

    Damage-tolerant active control (DTAC) is a recent research area that encompasses control design methodologies resulting from the application of fault-tolerant control methods to vibration control of structures subject to damage. The possibility of damage occurrence is not usually considered in the active vibration control design requirements. Damage changes the structure dynamics, which may produce unexpected modal behavior of the closed-loop system, usually not anticipated by the controller design approaches. A modal H∞ norm and a respective robust controller design framework were recently introduced, and this method is here extended to face a new DTAC strategy implementation. Considering that damage affects each vibration mode differently, this paper adopts the modal H∞ norm to include damage as a design requirement. The basic idea is to create an appropriate energy distribution over the frequency range of interest and respective vibration modes, guaranteeing robustness, damage tolerance, and adequate overall performance, taking into account that it is common to have previous knowledge of the structure regions where damage may occur during its operational life. For this purpose, a structural health monitoring technique is applied to evaluate modal modifications caused by damage. This information is used to create modal weighing matrices, conducting to the modal H∞ controller design. Finite element models are adopted for a case study structure, including different damage severities, in order to validate the proposed control strategy. Results show the effectiveness of the proposed methodology with respect to damage tolerance.

  16. Engineering Encounters: Identifying an Engineering Design Problem

    ERIC Educational Resources Information Center

    Chizek, Lisa; VanMeeteren, Beth; McDermott, Mark; Uhlenberg, Jill

    2018-01-01

    Engineering is an intriguing way for students to connect the design process with their knowledge of science (NRC 2012). This article describes the "Engineering a Pancake Recipe" design process which was created to make the structure and properties of matter more meaningful for fifth grade students. The whole pancake recipe engineering…

  17. 25 CFR 1000.247 - May the Secretary require design provisions and other terms and conditions for construction...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 2 2010-04-01 2010-04-01 false May the Secretary require design provisions and other..., DEPARTMENT OF THE INTERIOR ANNUAL FUNDING AGREEMENTS UNDER THE TRIBAL SELF-GOVERNMENT ACT AMENDMENTS TO THE INDIAN SELF-DETERMINATION AND EDUCATION ACT Construction § 1000.247 May the Secretary require design...

  18. An automated calibration laboratory - Requirements and design approach

    NASA Technical Reports Server (NTRS)

    O'Neil-Rood, Nora; Glover, Richard D.

    1990-01-01

    NASA's Dryden Flight Research Facility (Ames-Dryden), operates a diverse fleet of research aircraft which are heavily instrumented to provide both real time data for in-flight monitoring and recorded data for postflight analysis. Ames-Dryden's existing automated calibration (AUTOCAL) laboratory is a computerized facility which tests aircraft sensors to certify accuracy for anticipated harsh flight environments. Recently, a major AUTOCAL lab upgrade was initiated; the goal of this modernization is to enhance productivity and improve configuration management for both software and test data. The new system will have multiple testing stations employing distributed processing linked by a local area network to a centralized database. The baseline requirements for the new AUTOCAL lab and the design approach being taken for its mechanization are described.

  19. 76 FR 14825 - Core Principles and Other Requirements for Designated Contact Markets

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-03-18

    ... COMMODITY FUTURES TRADING COMMISSION 17 CFR Parts 1, 16, and 38 RIN 3038-AD09 Core Principles and Other Requirements for Designated Contact Markets AGENCY: Commodity Futures Trading Commission. ACTION... FURTHER INFORMATION CONTACT: Nancy Markowitz, Assistant Deputy Director, 202-418-5453, [email protected

  20. GATOR: Requirements capturing of telephony features

    NASA Technical Reports Server (NTRS)

    Dankel, Douglas D., II; Walker, Wayne; Schmalz, Mark

    1992-01-01

    We are developing a natural language-based, requirements gathering system called GATOR (for the GATherer Of Requirements). GATOR assists in the development of more accurate and complete specifications of new telephony features. GATOR interacts with a feature designer who describes a new feature, set of features, or capability to be implemented. The system aids this individual in the specification process by asking for clarifications when potential ambiguities are present, by identifying potential conflicts with other existing features, and by presenting its understanding of the feature to the designer. Through user interaction with a model of the existing telephony feature set, GATOR constructs a formal representation of the new, 'to be implemented' feature. Ultimately GATOR will produce a requirements document and will maintain an internal representation of this feature to aid in future design and specification. This paper consists of three sections that describe (1) the structure of GATOR, (2) POND, GATOR's internal knowledge representation language, and (3) current research issues.

  1. Structural requirements for interleukin-8 function identified by design of analogs and CXC chemokine hybrids.

    PubMed

    Clark-Lewis, I; Dewald, B; Loetscher, M; Moser, B; Baggiolini, M

    1994-06-10

    Structure-activity relationships of human interleukin-8 (IL-8) were probed using chemically synthesized analogs with single or double amino acid substitutions, as well as hybrids derived by substituting IL-8 regions into IP10, a related protein that lacks IL-8 activity. The analogs were tested for functional activity by measuring induction of elastase release from human neutrophils and competition for binding of radiolabeled IL-8. The hybrid studies indicated that Gly31 and Pro32, as well as the NH2-terminal region from IL-8 are required to convert IP10 into a fully functional protein, suggesting that these elements are critical for IL-8 activity. Both disulfide bridges, linking residue 7 to 34 and residue 9 to 50, were critical for function, as shown by substituting the cysteine pairs with alpha-aminobutyric acid. Single conservative substitutions were generally accepted into the 10-22 region of IL-8, which contrasts with the ELR motif (residues 4-6), previously shown to be essential for activity. The importance of residues within the 10-15 region and the 17-22 region was demonstrated with hybrids. In addition, some of the 4-22 residues have structural roles that may be important; for example, Tyr13, Phe17, and Phe21 are involved in aromatic interactions in the IL-8 structure, and are also moderately sensitive to modification. Except for Cys50, the results argue against a role for the 36-72 region, including the COOH-terminal alpha-helix, in receptor binding. We conclude that the disulfide bridges and 30-35 turn provide a structural scaffold for the NH2-terminal region which includes the primary receptor-binding site (the ELR motif) and secondary binding and conformational determinants between residues 10 and 22.

  2. 50 CFR 600.1417 - Requirements for exempted state designation based on submission of recreational survey data.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... the state's participation in a qualifying regional survey, and the survey's sample design, data... designation based on submission of recreational survey data. 600.1417 Section 600.1417 Wildlife and Fisheries... Requirements for exempted state designation based on submission of recreational survey data. (a) To be...

  3. 50 CFR 600.1417 - Requirements for exempted state designation based on submission of recreational survey data.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... the state's participation in a qualifying regional survey, and the survey's sample design, data... designation based on submission of recreational survey data. 600.1417 Section 600.1417 Wildlife and Fisheries... Requirements for exempted state designation based on submission of recreational survey data. (a) To be...

  4. Design requirements, challenges, and solutions for high-temperature falling particle receivers

    NASA Astrophysics Data System (ADS)

    Christian, Joshua; Ho, Clifford

    2016-05-01

    Falling particle receivers (FPR) utilize small particles as a heat collecting medium within a cavity receiver structure. Previous analysis for FPR systems include computational fluid dynamics (CFD), analytical evaluations, and experiments to determine the feasibility and achievability of this CSP technology. Sandia National Laboratories has fabricated and tested a 1 MWth FPR that consists of a cavity receiver, top hopper, bottom hopper, support structure, particle elevator, flux target, and instrumentation. Design requirements and inherent challenges were addressed to enable continuous operation of flowing particles under high-flux conditions and particle temperatures over 700 °C. Challenges include being able to withstand extremely high temperatures (up to 1200°C on the walls of the cavity), maintaining particle flow and conveyance, measuring temperatures and mass flow rates, filtering out debris, protecting components from direct flux spillage, and measuring irradiance in the cavity. Each of the major components of the system is separated into design requirements, associated challenges and corresponding solutions. The intent is to provide industry and researchers with lessons learned to avoid pitfalls and technical problems encountered during the development of Sandia's prototype particle receiver system at the National Solar Thermal Test Facility (NSTTF).

  5. 23 CFR 636.116 - What organizational conflict of interest requirements apply to design-build projects?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 23 Highways 1 2010-04-01 2010-04-01 false What organizational conflict of interest requirements... What organizational conflict of interest requirements apply to design-build projects? (a) State statutes or policies concerning organizational conflict of interest should be specified or referenced in...

  6. Adaptive smart wing design for military aircraft: requirements, concepts, and payoffs

    NASA Astrophysics Data System (ADS)

    Kudva, Jayanth N.; Appa, Kari; Van Way, Craig B.; Lockyer, Allen J.

    1995-05-01

    New developments in smart structures and materials have made it possible to revisit earlier work in adaptive and flexible wing technology, and remove some of the limitations for technology transition to next-generation aircraft. Research performed by Northrop Grumman, under internal funding, has led to a new program sponsored by ARPA to investigate the application of smart structures and materials technologies to twist and adapt and aircraft wing. Conceptual designs are presented based on state-of-the-art materials, including shape memory alloys, piezoelectrics, and fiber optic sensors for incorporation in a proposed smart wing design. Plans are described to demonstrate proof-of-concept on a prototype 1/10 scale -18 model that will be tested in a wind tunnel for final validation. Highlights of the proposed program are summarized with respect to program objectives, requirements, key concept design features, demonstration testing, and smart wing technology payoffs and risks.

  7. 19 CFR 115.65 - Technical requirements for road vehicles by design type.

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 19 Customs Duties 1 2012-04-01 2012-04-01 false Technical requirements for road vehicles by design type. 115.65 Section 115.65 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO...

  8. 19 CFR 115.65 - Technical requirements for road vehicles by design type.

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 19 Customs Duties 1 2011-04-01 2011-04-01 false Technical requirements for road vehicles by design type. 115.65 Section 115.65 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO...

  9. 19 CFR 115.65 - Technical requirements for road vehicles by design type.

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 19 Customs Duties 1 2013-04-01 2013-04-01 false Technical requirements for road vehicles by design type. 115.65 Section 115.65 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO...

  10. 19 CFR 115.65 - Technical requirements for road vehicles by design type.

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 19 Customs Duties 1 2014-04-01 2014-04-01 false Technical requirements for road vehicles by design type. 115.65 Section 115.65 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO...

  11. 19 CFR 115.65 - Technical requirements for road vehicles by design type.

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 19 Customs Duties 1 2010-04-01 2010-04-01 false Technical requirements for road vehicles by design type. 115.65 Section 115.65 Customs Duties U.S. CUSTOMS AND BORDER PROTECTION, DEPARTMENT OF HOMELAND SECURITY; DEPARTMENT OF THE TREASURY CARGO CONTAINER AND ROAD VEHICLE CERTIFICATION PURSUANT TO...

  12. Participatory interaction design in user requirements specification in healthcare.

    PubMed

    Martikainen, Susanna; Ikävalko, Pauliina; Korpela, Mikko

    2010-01-01

    Healthcare information systems are accused of poor usability even in the popular media in Finland. Doctors especially have been very critical and actively expressed their opinions in public. User involvement and user-centered design methods are seen as the key solution to usability problems. In this paper we describe a research case where participatory methods were experimented within healthcare information systems development in medicinal care in a hospital. The study was part of a larger research project on Activity-driven Information Systems Development in healthcare. The study started by finding out about and modeling the present state of medicinal care in the hospital. After that it was important to define and model the goal state. The goal state, facilitated by the would-be software package, was modeled with the help of user interface drawings as one way of prototyping. Traditional usability methods were extended during the study. According to the health professionals' feedback, the use of participatory and user-centered interaction design methods, particularly user interface drawings enabled them to describe their requirements and create common understanding with the system developers.

  13. Designing for Quality: An Analysis of Design and Pedagogical Issues in Online Course Development

    ERIC Educational Resources Information Center

    Sanga, Mapopa William

    2017-01-01

    This study investigated the process through which 100 online courses were developed in compliance with a purpose-made rubric designed to bring the courses to a level that would meet requirements of membership in a state authorization reciprocity agreement. The study identified and analyzed common design and pedagogical issues instructors…

  14. 30 CFR 77.805 - Cable couplers and connection boxes; minimum design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 1 2010-07-01 2010-07-01 false Cable couplers and connection boxes; minimum... connection boxes; minimum design requirements. (a)(1) Couplers that are used in medium- or high-voltage power... materials other than metal. (2) Cable couplers shall be adequate for the intended current and voltage. (3...

  15. 30 CFR 77.805 - Cable couplers and connection boxes; minimum design requirements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 30 Mineral Resources 1 2011-07-01 2011-07-01 false Cable couplers and connection boxes; minimum... connection boxes; minimum design requirements. (a)(1) Couplers that are used in medium- or high-voltage power... materials other than metal. (2) Cable couplers shall be adequate for the intended current and voltage. (3...

  16. 30 CFR 77.805 - Cable couplers and connection boxes; minimum design requirements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 30 Mineral Resources 1 2013-07-01 2013-07-01 false Cable couplers and connection boxes; minimum... WORK AREAS OF UNDERGROUND COAL MINES Surface High-Voltage Distribution § 77.805 Cable couplers and connection boxes; minimum design requirements. (a)(1) Couplers that are used in medium- or high-voltage power...

  17. 30 CFR 77.805 - Cable couplers and connection boxes; minimum design requirements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 30 Mineral Resources 1 2014-07-01 2014-07-01 false Cable couplers and connection boxes; minimum... WORK AREAS OF UNDERGROUND COAL MINES Surface High-Voltage Distribution § 77.805 Cable couplers and connection boxes; minimum design requirements. (a)(1) Couplers that are used in medium- or high-voltage power...

  18. 30 CFR 77.805 - Cable couplers and connection boxes; minimum design requirements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 30 Mineral Resources 1 2012-07-01 2012-07-01 false Cable couplers and connection boxes; minimum... WORK AREAS OF UNDERGROUND COAL MINES Surface High-Voltage Distribution § 77.805 Cable couplers and connection boxes; minimum design requirements. (a)(1) Couplers that are used in medium- or high-voltage power...

  19. 30 CFR 250.431 - What are the diverter design and installation requirements?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., DEPARTMENT OF THE INTERIOR OFFSHORE OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF Oil and Gas Drilling Operations Diverter System Requirements § 250.431 What are the diverter design and... configurations and at least 12 inches for floating drilling operations; (b) Use dual diverter lines arranged to...

  20. 30 CFR 250.431 - What are the diverter design and installation requirements?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., DEPARTMENT OF THE INTERIOR OFFSHORE OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF Oil and Gas Drilling Operations Diverter System Requirements § 250.431 What are the diverter design and... configurations and at least 12 inches for floating drilling operations; (b) Use dual diverter lines arranged to...

  1. 30 CFR 250.431 - What are the diverter design and installation requirements?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., DEPARTMENT OF THE INTERIOR OFFSHORE OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF Oil and Gas Drilling Operations Diverter System Requirements § 250.431 What are the diverter design and... configurations and at least 12 inches for floating drilling operations; (b) Use dual diverter lines arranged to...

  2. 45 CFR 2530.70 - Is a designated individual required to accept a transferred education award?

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... transferred education award? 2530.70 Section 2530.70 Public Welfare Regulations Relating to Public Welfare (Continued) CORPORATION FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.70 Is a designated individual required to accept a transferred education award? (a) General Rule. A designated...

  3. 45 CFR 2530.70 - Is a designated individual required to accept a transferred education award?

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... transferred education award? 2530.70 Section 2530.70 Public Welfare Regulations Relating to Public Welfare (Continued) CORPORATION FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.70 Is a designated individual required to accept a transferred education award? (a) General Rule. A designated...

  4. 45 CFR 2530.70 - Is a designated individual required to accept a transferred education award?

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... transferred education award? 2530.70 Section 2530.70 Public Welfare Regulations Relating to Public Welfare (Continued) CORPORATION FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.70 Is a designated individual required to accept a transferred education award? (a) General Rule. A designated...

  5. 45 CFR 2530.70 - Is a designated individual required to accept a transferred education award?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... transferred education award? 2530.70 Section 2530.70 Public Welfare Regulations Relating to Public Welfare (Continued) CORPORATION FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.70 Is a designated individual required to accept a transferred education award? (a) General Rule. A designated...

  6. 45 CFR 2530.70 - Is a designated individual required to accept a transferred education award?

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... transferred education award? 2530.70 Section 2530.70 Public Welfare Regulations Relating to Public Welfare (Continued) CORPORATION FOR NATIONAL AND COMMUNITY SERVICE TRANSFER OF EDUCATION AWARDS § 2530.70 Is a designated individual required to accept a transferred education award? (a) General Rule. A designated...

  7. Identifying Attenuating Mutations: Tools for a New Vaccine Design against Flaviviruses.

    PubMed

    Khou, Cécile; Pardigon, Nathalie

    2017-01-01

    Emerging Flaviviruses pose an increasing threat to global human health. To date, human vaccines against yellow fever virus (YFV), Japanese encephalitis virus (JEV), dengue virus (DV), and tick-borne encephalitis virus (TBEV) exist. However, there is no human vaccine against other Flaviviruses such as Zika virus (ZIKV) and West Nile virus (WNV). In order to restrict their spread and to protect populations against the diseases they induce, vaccines against these emerging viruses must be designed. Obtaining new live attenuated Flavivirus vaccines using molecular biology methods is now possible. Molecular infectious clones of the parental viruses are relatively easy to generate. Key mutations present in live attenuated vaccines or mutations known to have a key role in the Flavivirus life cycle and/or interactions with their hosts can be identified by sequencing, and are then inserted in infectious clones by site-directed mutagenesis. More recently, the use of chimeric viruses and large-scale reencoding and introduction of microRNA target sequences have also been tested. Indeed, a combination of these methods will help in designing new generations of vaccines against emerging and reemerging Flaviviruses. © 2017 S. Karger AG, Basel.

  8. 13 CFR 127.502 - How will SBA identify and provide notice of the designated industries?

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 13 Business Credit and Assistance 1 2010-01-01 2010-01-01 false How will SBA identify and provide notice of the designated industries? 127.502 Section 127.502 Business Credit and Assistance SMALL BUSINESS ADMINISTRATION WOMEN-OWNED SMALL BUSINESS FEDERAL CONTRACT ASSISTANCE PROCEDURES Federal Contract...

  9. 40 CFR 53.51 - Demonstration of compliance with design specifications and manufacturing and test requirements.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... compliance with design specifications and manufacturing and test requirements. (a) Overview. (1) Paragraphs... document its post-manufacturing test procedures. As a minimum, each test shall consist of the following... 40 Protection of Environment 5 2011-07-01 2011-07-01 false Demonstration of compliance with design...

  10. 40 CFR 53.51 - Demonstration of compliance with design specifications and manufacturing and test requirements.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... compliance with design specifications and manufacturing and test requirements. (a) Overview. (1) Paragraphs... document its post-manufacturing test procedures. As a minimum, each test shall consist of the following... 40 Protection of Environment 6 2014-07-01 2014-07-01 false Demonstration of compliance with design...

  11. 40 CFR 53.51 - Demonstration of compliance with design specifications and manufacturing and test requirements.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... compliance with design specifications and manufacturing and test requirements. (a) Overview. (1) Paragraphs... document its post-manufacturing test procedures. As a minimum, each test shall consist of the following... 40 Protection of Environment 6 2013-07-01 2013-07-01 false Demonstration of compliance with design...

  12. 40 CFR 53.51 - Demonstration of compliance with design specifications and manufacturing and test requirements.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... compliance with design specifications and manufacturing and test requirements. (a) Overview. (1) Paragraphs... document its post-manufacturing test procedures. As a minimum, each test shall consist of the following... 40 Protection of Environment 6 2012-07-01 2012-07-01 false Demonstration of compliance with design...

  13. 50 CFR 91.13 - Technical requirements for design and submission of entry.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 50 Wildlife and Fisheries 9 2014-10-01 2014-10-01 false Technical requirements for design and submission of entry. 91.13 Section 91.13 Wildlife and Fisheries UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR (CONTINUED) MISCELLANEOUS PROVISIONS MIGRATORY BIRD HUNTING AND CONSERVATION STAMP CONTEST Procedures for Entering the...

  14. 50 CFR 91.13 - Technical requirements for design and submission of entry.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 50 Wildlife and Fisheries 9 2012-10-01 2012-10-01 false Technical requirements for design and submission of entry. 91.13 Section 91.13 Wildlife and Fisheries UNITED STATES FISH AND WILDLIFE SERVICE, DEPARTMENT OF THE INTERIOR (CONTINUED) MISCELLANEOUS PROVISIONS MIGRATORY BIRD HUNTING AND CONSERVATION STAMP CONTEST Procedures for Entering the...

  15. A pilot's opinion - VTOL control design requirements for the instrument approach task.

    NASA Technical Reports Server (NTRS)

    Patton, J. M., Jr.

    1972-01-01

    This paper presents pilot opinion supported by test data concerning flight control and display concepts and control system design requirements for VTOL aircraft in the instrument approach task. Material presented is drawn from research flights in the following aircraft: Dornier DO-31, Short SC-1, LTV XC-142A, and Boeing-Vertol CH-46. The control system concepts and mechanizations employed in the above aircraft are discussed, and the effect of control system augmentation is shown on performance. Operational procedures required in the instrument approach task are described, with comments on need for automation and combining of control functions.

  16. Developing a 3D Game Design Authoring Package to Assist Students' Visualization Process in Design Thinking

    ERIC Educational Resources Information Center

    Kuo, Ming-Shiou; Chuang, Tsung-Yen

    2013-01-01

    The teaching of 3D digital game design requires the development of students' meta-skills, from story creativity to 3D model construction, and even the visualization process in design thinking. The characteristics a good game designer should possess have been identified as including redesign things, creativity thinking and the ability to…

  17. PRISM Spectrograph Optical Design

    NASA Technical Reports Server (NTRS)

    Chipman, Russell A.

    1995-01-01

    The objective of this contract is to explore optical design concepts for the PRISM spectrograph and produce a preliminary optical design. An exciting optical configuration has been developed which will allow both wavelength bands to be imaged onto the same detector array. At present the optical design is only partially complete because PRISM will require a fairly elaborate optical system to meet its specification for throughput (area*solid angle). The most complex part of the design, the spectrograph camera, is complete, providing proof of principle that a feasible design is attainable. This camera requires 3 aspheric mirrors to fit inside the 20x60 cm cross-section package. A complete design with reduced throughput (1/9th) has been prepared. The design documents the optical configuration concept. A suitable dispersing prism material, CdTe, has been identified for the prism spectrograph, after a comparison of many materials.

  18. Using naturalistic driving films as a design tool for investigating driver requirements in HMI design for ADAS.

    PubMed

    Wang, Minjuan; Sun, Dong; Chen, Fang

    2012-01-01

    In recent years, there are many naturalistic driving projects have been conducted, such as the 100-Car Project (Naturalistic Driving study in United State), EuroFOT(European Large-Scale Field Operational Tests on Vehicle Systems), SeMi- FOT(Sweden Michigan Naturalistic Field Operational Test and etc. However, those valuable naturalistic driving data hasn't been applied into Human-machine Interaction (HMI) design for Advanced Driver Assistance Systems (ADAS), a good HMI design for ADAS requires a deep understanding of drive environment and the interactions between the driving car and other road users in different situations. The results demonstrated the benefits of using naturalistic driving films as a mean for enhancing focus group discussion for better understanding driver's needs and traffic environment constraints. It provided an efficient tool for designers to have inside knowledge about drive and the needs for information presentation; The recommendations for how to apply this method is discussed in the paper.

  19. Aerospace Energy Systems Laboratory - Requirements and design approach

    NASA Technical Reports Server (NTRS)

    Glover, Richard D.

    1988-01-01

    The NASA Ames/Dryden Flight Research Facility operates a mixed fleet of research aircraft employing NiCd batteries in a variety of flight-critical applications. Dryden's Battery Systems Laboratory (BSL), a computerized facility for battery maintenance servicing, has evolved over two decades into one of the most advanced facilities of its kind in the world. Recently a major BSL upgrade was initiated with the goal of modernization to provide flexibility in meeting the needs of future advanced projects. The new facility will be called the Aerospace Energy Systems Laboratory (AESL) and will employ distributed processing linked to a centralized data base. AESL will be both a multistation servicing facility and a research laboratory for the advancement of energy storage system maintenance techniques. This paper describes the baseline requirements for the AESL and the design approach being taken for its mechanization.

  20. Safeguards Guidance Document for Designers of Commercial Nuclear Facilities: International Nuclear Safeguards Requirements and Practices For Uranium Enrichment Plants

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

    Robert Bean; Casey Durst

    2009-10-01

    This report is the second in a series of guidelines on international safeguards requirements and practices, prepared expressly for the designers of nuclear facilities. The first document in this series is the description of generic international nuclear safeguards requirements pertaining to all types of facilities. These requirements should be understood and considered at the earliest stages of facility design as part of a new process called “Safeguards-by-Design.” This will help eliminate the costly retrofit of facilities that has occurred in the past to accommodate nuclear safeguards verification activities. The following summarizes the requirements for international nuclear safeguards implementation at enrichmentmore » plants, prepared under the Safeguards by Design project, and funded by the U.S. Department of Energy (DOE) National Nuclear Security Administration (NNSA), Office of NA-243. The purpose of this is to provide designers of nuclear facilities around the world with a simplified set of design requirements and the most common practices for meeting them. The foundation for these requirements is the international safeguards agreement between the country and the International Atomic Energy Agency (IAEA), pursuant to the Treaty on the Non-proliferation of Nuclear Weapons (NPT). Relevant safeguards requirements are also cited from the Safeguards Criteria for inspecting enrichment plants, found in the IAEA Safeguards Manual, Part SMC-8. IAEA definitions and terms are based on the IAEA Safeguards Glossary, published in 2002. The most current specification for safeguards measurement accuracy is found in the IAEA document STR-327, “International Target Values 2000 for Measurement Uncertainties in Safeguarding Nuclear Materials,” published in 2001. For this guide to be easier for the designer to use, the requirements have been restated in plainer language per expert interpretation using the source documents noted. The safeguards agreement is

  1. The IFS for WFIRST CGI: Science Requirements to Design

    NASA Astrophysics Data System (ADS)

    Groff, Tyler; Gong, Qian; Mandell, Avi M.; Zimmerman, Neil; Rizzo, Maxime; McElwain, Michael; harvey, david; Saxena, Prabal; cady, eric; mejia prada, camilo

    2018-01-01

    Direct Imaging of exoplanets using a coronagraph has become a major field of research both on the ground and in space. Key to the science of direct imaging is the spectroscopic capabilities of the instrument, our ability to extract spectra, and measure the abundance of molecular species such as Methane. To take these spectra, the WFIRST coronagraph instrument (CGI) uses an integral field spectrograph (IFS), which encodes the spectrum into a two-dimensional image on the detector. This results in more efficient detection and characterization of targets, and the spectral information is critical to achieving detection limits below the speckle floor of the imager. The CGI IFS operates in three 18% bands spanning 600nm to 970nm at a nominal spectral resolution of R50. We present the current science and engineering requirements for the IFS design, the instrument design, anticipated performance, and how the calibration is integrated into the focal plane wavefront control algorithms. We also highlight the role of the Prototype Imaging Spectrograph for Coronagraphic Exoplanet Studies (PISCES) at the JPL High Contrast Imaging Testbed to demonstrate performance and validate calibration methodologies for the flight instrument.

  2. A Qualitative Study to Identify Skills and Competency Required for Hospital Managers

    PubMed Central

    Barati, Omid; Sadeghi, Ahmad; Khammarnia, Mohammad; Siavashi, Elham; Oskrochi, Gholamreza

    2016-01-01

    Introduction Hospital managers aim to improve the efficiency and effectiveness of their institutions through leadership and guidance of medical personnel. Fulfilling these objectives requires a holistic approach to both the management of people and institutional prioritization. The aim of this study was to identify the skills and competencies that hospital managers must demonstrate in order to achieve their objectives. Methods In 2015, a regional, multi-center qualitative study was undertaken in Shiraz, Iran. Interviews and focus group discussions were conducted with university hospital managers, senior managers, faculty members, and post-graduate students, and the results were analyzed using the content analysis method by MAXQDA software. Results Eight key skill themes (communication, experience, appreciation of institution logistics/infrastructure, management skills, motivation, systematic problem solving, ethics, and financial/legal awareness) were identified among the hospital managers. The common challenges that face hospital institutions include problems with hierarchical and organizational structure, excessive rules and regulations, lack of resources, poor post-graduate education, and overall management. Recurring themes with respect to how these could be addressed included changing the culture and belief structure of the hospital, restructuring the organizational hierarchy, and empowering the people. Conclusion In our cohort, practical skills, such as communication and experience, were considered more important than theoretical skills for the effective management and administration of hospitals. Therefore, we suggest that practical, skill-based training should be emphasized for students of these disciplines so they will be better suited to deal with real world challenges. Further organizational improvements also can be attained by the active and constructive involvement of senior university managers. PMID:27504159

  3. A Qualitative Study to Identify Skills and Competency Required for Hospital Managers.

    PubMed

    Barati, Omid; Sadeghi, Ahmad; Khammarnia, Mohammad; Siavashi, Elham; Oskrochi, Gholamreza

    2016-06-01

    Hospital managers aim to improve the efficiency and effectiveness of their institutions through leadership and guidance of medical personnel. Fulfilling these objectives requires a holistic approach to both the management of people and institutional prioritization. The aim of this study was to identify the skills and competencies that hospital managers must demonstrate in order to achieve their objectives. In 2015, a regional, multi-center qualitative study was undertaken in Shiraz, Iran. Interviews and focus group discussions were conducted with university hospital managers, senior managers, faculty members, and post-graduate students, and the results were analyzed using the content analysis method by MAXQDA software. Eight key skill themes (communication, experience, appreciation of institution logistics/infrastructure, management skills, motivation, systematic problem solving, ethics, and financial/legal awareness) were identified among the hospital managers. The common challenges that face hospital institutions include problems with hierarchical and organizational structure, excessive rules and regulations, lack of resources, poor post-graduate education, and overall management. Recurring themes with respect to how these could be addressed included changing the culture and belief structure of the hospital, restructuring the organizational hierarchy, and empowering the people. In our cohort, practical skills, such as communication and experience, were considered more important than theoretical skills for the effective management and administration of hospitals. Therefore, we suggest that practical, skill-based training should be emphasized for students of these disciplines so they will be better suited to deal with real world challenges. Further organizational improvements also can be attained by the active and constructive involvement of senior university managers.

  4. Design Requirements for Unmanned Rotorcraft Used in Low-Risk Concepts of Operation

    NASA Technical Reports Server (NTRS)

    Hayhurst, Kelly J.; Maddalon, Jeffrey M.; Neogi, Natasha A.; Verstynen, Harry A.

    2016-01-01

    This technical report presents the results of the second of two research studies on design and performance requirements supporting airworthiness certification of midrange unmanned aircraft systems (UAS) intended for commercial use. The two studies focused attention on UAS in the middle of the multidimensional spectrum of UAS; that is, UAS with attributes and capabilities exceeding the criteria to operate under Part 107 of the Federal Aviation Regulations (FARs), but without the design or operational capabilities to comply with the airworthiness standards for commercially-operated manned aircraft. The goal of the two studies was to help address the gap in airworthiness standards for some UAS that fall between the extremes.

  5. Aerospace energy systems laboratory: Requirements and design approach

    NASA Technical Reports Server (NTRS)

    Glover, Richard D.

    1988-01-01

    The NASA Ames-Dryden Flight Research Facility at Edwards, California, operates a mixed fleet of research aircraft employing nickel-cadmium (NiCd) batteries in a variety of flight-critical applications. Dryden's Battery Systems Laboratory (BSL), a computerized facility for battery maintenance servicing, has developed over two decades into one of the most advanced facilities of its kind in the world. Recently a major BSL upgrade was initiated with the goal of modernization to provide flexibility in meeting the needs of future advanced projects. The new facility will be called the Aerospace Energy Systems Laboratory (AESL) and will employ distributed processing linked to a centralized data base. AESL will be both a multistation servicing facility and a research laboratory for the advancement of energy storage system maintenance techniques. This paper describes the baseline requirements for the AESL and the design approach being taken for its mechanization.

  6. 10 CFR 435.303 - Requirements for the design of a Federal residential building.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 10 Energy 3 2011-01-01 2011-01-01 false Requirements for the design of a Federal residential building. 435.303 Section 435.303 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ENERGY EFFICIENCY STANDARDS FOR NEW FEDERAL LOW-RISE RESIDENTIAL BUILDINGS Mandatory Energy Efficiency Standards for Federal...

  7. 10 CFR 435.303 - Requirements for the design of a Federal residential building.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 10 Energy 3 2010-01-01 2010-01-01 false Requirements for the design of a Federal residential building. 435.303 Section 435.303 Energy DEPARTMENT OF ENERGY ENERGY CONSERVATION ENERGY EFFICIENCY STANDARDS FOR NEW FEDERAL LOW-RISE RESIDENTIAL BUILDINGS Mandatory Energy Efficiency Standards for Federal...

  8. 49 CFR 192.199 - Requirements for design of pressure relief and limiting devices.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 49 Transportation 3 2011-10-01 2011-10-01 false Requirements for design of pressure relief and limiting devices. 192.199 Section 192.199 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF NATURAL...

  9. 49 CFR 192.199 - Requirements for design of pressure relief and limiting devices.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 49 Transportation 3 2013-10-01 2013-10-01 false Requirements for design of pressure relief and limiting devices. 192.199 Section 192.199 Transportation Other Regulations Relating to Transportation (Continued) PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (CONTINUED) PIPELINE SAFETY TRANSPORTATION OF NATURAL...

  10. Inertial subsystem functional and design requirements for the orbiter (Phase B extension baseline)

    NASA Technical Reports Server (NTRS)

    Flanders, J. H.; Green, J. P., Jr.

    1972-01-01

    The design requirements use the Phase B extension baseline system definition. This means that a GNC computer is specified for all command control functions instead of a central computer communicating with the ISS through a databus. Forced air cooling is used instead of cold plate cooling.

  11. Applying Monte Carlo Simulation to Launch Vehicle Design and Requirements Analysis

    NASA Technical Reports Server (NTRS)

    Hanson, J. M.; Beard, B. B.

    2010-01-01

    This Technical Publication (TP) is meant to address a number of topics related to the application of Monte Carlo simulation to launch vehicle design and requirements analysis. Although the focus is on a launch vehicle application, the methods may be applied to other complex systems as well. The TP is organized so that all the important topics are covered in the main text, and detailed derivations are in the appendices. The TP first introduces Monte Carlo simulation and the major topics to be discussed, including discussion of the input distributions for Monte Carlo runs, testing the simulation, how many runs are necessary for verification of requirements, what to do if results are desired for events that happen only rarely, and postprocessing, including analyzing any failed runs, examples of useful output products, and statistical information for generating desired results from the output data. Topics in the appendices include some tables for requirements verification, derivation of the number of runs required and generation of output probabilistic data with consumer risk included, derivation of launch vehicle models to include possible variations of assembled vehicles, minimization of a consumable to achieve a two-dimensional statistical result, recontact probability during staging, ensuring duplicated Monte Carlo random variations, and importance sampling.

  12. Advancing the literature on designing audit and feedback interventions: identifying theory-informed hypotheses.

    PubMed

    Colquhoun, Heather L; Carroll, Kelly; Eva, Kevin W; Grimshaw, Jeremy M; Ivers, Noah; Michie, Susan; Sales, Anne; Brehaut, Jamie C

    2017-09-29

    Audit and feedback (A&F) is a common strategy for helping health providers to implement evidence into practice. Despite being extensively studied, health care A&F interventions remain variably effective, with overall effect sizes that have not improved since 2003. Contributing to this stagnation is the fact that most health care A&F interventions have largely been designed without being informed by theoretical understanding from the behavioral and social sciences. To determine if the trend can be improved, the objective of this study was to develop a list of testable, theory-informed hypotheses about how to design more effective A&F interventions. Using purposive sampling, semi-structured 60-90-min telephone interviews were conducted with experts in theories related to A&F from a range of fields (e.g., cognitive, health and organizational psychology, medical decision-making, economics). Guided by detailed descriptions of A&F interventions from the health care literature, interviewees described how they would approach the problem of designing improved A&F interventions. Specific, theory-informed hypotheses about the conditions for effective design and delivery of A&F interventions were elicited from the interviews. The resulting hypotheses were assigned by three coders working independently into themes, and categories of themes, in an iterative process. We conducted 28 interviews and identified 313 theory-informed hypotheses, which were placed into 30 themes. The 30 themes included hypotheses related to the following five categories: A&F recipient (seven themes), content of the A&F (ten themes), process of delivery of the A&F (six themes), behavior that was the focus of the A&F (three themes), and other (four themes). We have identified a set of testable, theory-informed hypotheses from a broad range of behavioral and social science that suggest conditions for more effective A&F interventions. This work demonstrates the breadth of perspectives about A&F from non

  13. Towards the formal verification of the requirements and design of a processor interface unit

    NASA Technical Reports Server (NTRS)

    Fura, David A.; Windley, Phillip J.; Cohen, Gerald C.

    1993-01-01

    The formal verification of the design and partial requirements for a Processor Interface Unit (PIU) using the Higher Order Logic (HOL) theorem-proving system is described. The processor interface unit is a single-chip subsystem within a fault-tolerant embedded system under development within the Boeing Defense and Space Group. It provides the opportunity to investigate the specification and verification of a real-world subsystem within a commercially-developed fault-tolerant computer. An overview of the PIU verification effort is given. The actual HOL listing from the verification effort are documented in a companion NASA contractor report entitled 'Towards the Formal Verification of the Requirements and Design of a Processor Interface Unit - HOL Listings' including the general-purpose HOL theories and definitions that support the PIU verification as well as tactics used in the proofs.

  14. Robust design of configurations and parameters of adaptable products

    NASA Astrophysics Data System (ADS)

    Zhang, Jian; Chen, Yongliang; Xue, Deyi; Gu, Peihua

    2014-03-01

    An adaptable product can satisfy different customer requirements by changing its configuration and parameter values during the operation stage. Design of adaptable products aims at reducing the environment impact through replacement of multiple different products with single adaptable ones. Due to the complex architecture, multiple functional requirements, and changes of product configurations and parameter values in operation, impact of uncertainties to the functional performance measures needs to be considered in design of adaptable products. In this paper, a robust design approach is introduced to identify the optimal design configuration and parameters of an adaptable product whose functional performance measures are the least sensitive to uncertainties. An adaptable product in this paper is modeled by both configurations and parameters. At the configuration level, methods to model different product configuration candidates in design and different product configuration states in operation to satisfy design requirements are introduced. At the parameter level, four types of product/operating parameters and relations among these parameters are discussed. A two-level optimization approach is developed to identify the optimal design configuration and its parameter values of the adaptable product. A case study is implemented to illustrate the effectiveness of the newly developed robust adaptable design method.

  15. Analysis of the implementation of ergonomic design at the new units of an oil refinery.

    PubMed

    Passero, Carolina Reich Marcon; Ogasawara, Erika Lye; Baú, Lucy Mara Silva; Buso, Sandro Artur; Bianchi, Marcos Cesar

    2012-01-01

    Ergonomic design is the adaptation of working conditions to human limitations and skills in the physical design phase of a new installation, a new working system, or new products or tools. Based on this concept, the purpose of this work was to analyze the implementation of ergonomic design at the new industrial units of an oil refinery, using the method of Ergonomic Workplace Assessment. This study was conducted by a multidisciplinary team composed of operation, maintenance and industrial safety technicians, ergonomists, designers and engineers. The analysis involved 6 production units, 1 industrial wastewater treatment unit, and 3 utilities units, all in the design detailing phase, for which 455 ergonomic requirements were identified. An analysis and characterization of the requirements identified for 5 of the production units, involving a total of 246 items, indicated that 62% were related to difficult access and blockage operations, while 15% were related to difficulties in the circulation of employees inside the units. Based on these data, it was found that the ergonomic requirements identified in the design detailing phase of an industrial unit involve physical ergonomics, and that it is very difficult to identify requirements related to organizational or cognitive ergonomics.

  16. Proceedings of the Non-Linear Aero Prediction Requirements Workshop

    NASA Technical Reports Server (NTRS)

    Logan, Michael J. (Editor)

    1994-01-01

    The purpose of the Non-Linear Aero Prediction Requirements Workshop, held at NASA Langley Research Center on 8-9 Dec. 1993, was to identify and articulate requirements for non-linear aero prediction capabilities during conceptual/preliminary design. The attendees included engineers from industry, government, and academia in a variety of aerospace disciplines, such as advanced design, aerodynamic performance analysis, aero methods development, flight controls, and experimental and theoretical aerodynamics. Presentations by industry and government organizations were followed by panel discussions. This report contains copies of the presentations and the results of the panel discussions.

  17. Reduction of Sample Size Requirements by Bilateral Versus Unilateral Research Designs in Animal Models for Cartilage Tissue Engineering

    PubMed Central

    Orth, Patrick; Zurakowski, David; Alini, Mauro; Cucchiarini, Magali

    2013-01-01

    Advanced tissue engineering approaches for articular cartilage repair in the knee joint rely on translational animal models. In these investigations, cartilage defects may be established either in one joint (unilateral design) or in both joints of the same animal (bilateral design). We hypothesized that a lower intraindividual variability following the bilateral strategy would reduce the number of required joints. Standardized osteochondral defects were created in the trochlear groove of 18 rabbits. In 12 animals, defects were produced unilaterally (unilateral design; n=12 defects), while defects were created bilaterally in 6 animals (bilateral design; n=12 defects). After 3 weeks, osteochondral repair was evaluated histologically applying an established grading system. Based on intra- and interindividual variabilities, required sample sizes for the detection of discrete differences in the histological score were determined for both study designs (α=0.05, β=0.20). Coefficients of variation (%CV) of the total histological score values were 1.9-fold increased following the unilateral design when compared with the bilateral approach (26 versus 14%CV). The resulting numbers of joints needed to treat were always higher for the unilateral design, resulting in an up to 3.9-fold increase in the required number of experimental animals. This effect was most pronounced for the detection of small-effect sizes and estimating large standard deviations. The data underline the possible benefit of bilateral study designs for the decrease of sample size requirements for certain investigations in articular cartilage research. These findings might also be transferred to other scoring systems, defect types, or translational animal models in the field of cartilage tissue engineering. PMID:23510128

  18. Hubble Space Telescope servicing mission scientific instrument protective enclosure design requirements and contamination controls

    NASA Technical Reports Server (NTRS)

    Hansen, Patricia A.; Hughes, David W.; Hedgeland, Randy J.; Chivatero, Craig J.; Studer, Robert J.; Kostos, Peter J.

    1994-01-01

    The Scientific Instrument Protective Enclosures were designed for the Hubble Space Telescope Servicing Missions to provide a beginning environment to a Scientific Instrument during ground and on orbit activities. The Scientific Instruments required very stringent surface cleanliness and molecular outgassing levels to maintain ultraviolet performance. Data from the First Servicing Mission verified that both the Scientific Instruments and Scientific Instrument Protective Enclosures met surface cleanliness level requirements during ground and on-orbit activities.

  19. Material requirements for the High Speed Civil Transport

    NASA Technical Reports Server (NTRS)

    Stephens, Joseph R.; Hecht, Ralph J.; Johnson, Andrew M.

    1993-01-01

    Under NASA-sponsored High Speed Research (HSR) programs, the materials and processing requirements have been identified for overcoming the environmental and economic barriers of the next generation High Speed Civil Transport (HSCT) propulsion system. The long (2 to 5 hours) supersonic cruise portion of the HSCT cycle will place additional durability requirements on all hot section engine components. Low emissions combustor designs will require high temperature ceramic matrix composite liners to meet an emission goal of less than 5g NO(x) per Kg fuel burned. Large axisymmetric and two-dimensional exhaust nozzle designs are now under development to meet or exceed FAR 36 Stage III noise requirements, and will require lightweight, high temperature metallic, intermetallic, and ceramic matrix composites to reduce nozzle weight and meet structural and acoustic component performance goals. This paper describes and discusses the turbomachinery, combustor, and exhaust nozzle requirements of the High Speed Civil Transport propulsion system.

  20. Defining Gas Turbine Engine Performance Requirements for the Large Civil TiltRotor (LCTR2)

    NASA Technical Reports Server (NTRS)

    Snyder, Christopher A.

    2013-01-01

    Defining specific engine requirements is a critical part of identifying technologies and operational models for potential future rotary wing vehicles. NASA's Fundamental Aeronautics Program, Subsonic Rotary Wing Project has identified the Large Civil TiltRotor (LCTR) as the configuration to best meet technology goals. This notional vehicle concept has evolved with more clearly defined mission and operational requirements to the LCTR-iteration 2 (LCTR2). This paper reports on efforts to further review and refine the LCTR2 analyses to ascertain specific engine requirements and propulsion sizing criteria. The baseline mission and other design or operational requirements are reviewed. Analysis tools are described to help understand their interactions and underlying assumptions. Various design and operational conditions are presented and explained for their contribution to defining operational and engine requirements. These identified engine requirements are discussed to suggest which are most critical to the engine sizing and operation. The most-critical engine requirements are compared to in-house NASA engine simulations to try to ascertain which operational requirements define engine requirements versus points within the available engine operational capability. Finally, results are summarized with suggestions for future efforts to improve analysis capabilities, and better define and refine mission and operational requirements.

  1. 40 CFR 80.1645 - Sample retention requirements for producers and importers of denaturant designated as suitable...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... producers and importers of denaturant designated as suitable for the manufacture of denatured fuel ethanol... suitable for the manufacture of denatured fuel ethanol meeting federal quality requirements. Beginning January 1, 2017, or on the first day that any producer or importer of ethanol denaturant designates a...

  2. Present capabilities and future requirements for computer-aided geometric modeling in the design and manufacture of gas turbine

    NASA Technical Reports Server (NTRS)

    Caille, E.; Propen, M.; Hoffman, A.

    1984-01-01

    Gas turbine engine design requires the ability to rapidly develop complex structures which are subject to severe thermal and mechanical operating loads. As in all facets of the aerospace industry, engine designs are constantly driving towards increased performance, higher temperatures, higher speeds, and lower weight. The ability to address such requirements in a relatively short time frame has resulted in a major thrust towards integrated design/analysis/manufacturing systems. These computer driven graphics systems represent a unique challenge, with major payback opportunities if properly conceived, implemented, and applied.

  3. Uptake of a Dashboard Designed to Give Realtime Feedback to a Sentinel Network About Key Data Required for Influenza Vaccine Effectiveness Studies.

    PubMed

    Pathirannehelage, Sameera; Kumarapeli, Pushpa; Byford, Rachel; Yonova, Ivelina; Ferreira, Filipa; de Lusignan, Simon

    2018-01-01

    Dashboards are technologies that bringing together a range of data sources for observational or analytical purposes. We have created a customised dashboard that includes all the key data elements required for monitoring flu vaccine effectiveness (FVE). This delivers a unique dashboard for each primary care provider (general practice) providing data to the Royal College of General Practitioners (RCGP) Research and Surveillance Centre (RSC), one of the oldest European surveillance systems. These FVE studies use a test negative case control (TNCC) design. TNCC requires knowledge of practice denominator; vaccine exposure, and results of influenza virology swabs carried out to identify in an influenza-like-illness (ILI), a clinical diagnosis, really is influenza. The dashboard displays the denominator uploaded each week into the surveillance system, compared with the nationally known practice size (providing face-validity for the denominator); it identifies those exposed to the vaccine (by age group and risk category) and virology specimens taken and missed opportunities for surveillance (again by category). All sentinel practices can access in near real time (4 working days in areas) their rates of vaccine exposure and swabs conducted. Initial feedback is positive; 80% (32/40) practices responded positively.

  4. Assessment of Quality Assurance Measures for Radioactive Material Transport Packages not Requiring Competent Authority Design Approval - 13282

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

    Komann, Steffen; Groeke, Carsten; Droste, Bernhard

    The majority of transports of radioactive materials are carried out in packages which don't need a package design approval by a competent authority. Low-active radioactive materials are transported in such packages e.g. in the medical and pharmaceutical industry and in the nuclear industry as well. Decommissioning of NPP's leads to a strong demand for packages to transport low and middle active radioactive waste. According to IAEA regulations the 'non-competent authority approved package types' are the Excepted Packages and the Industrial Packages of Type IP-1, IP-2 and IP-3 and packages of Type A. For these types of packages an assessment bymore » the competent authority is required for the quality assurance measures for the design, manufacture, testing, documentation, use, maintenance and inspection (IAEA SSR 6, Chap. 306). In general a compliance audit of the manufacturer of the packaging is required during this assessment procedure. Their regulatory level in the IAEA regulations is not comparable with the 'regulatory density' for packages requiring competent authority package design approval. Practices in different countries lead to different approaches within the assessment of the quality assurance measures in the management system as well as in the quality assurance program of a special package design. To use the package or packaging in a safe manner and in compliance with the regulations a management system for each phase of the life of the package or packaging is necessary. The relevant IAEA-SSR6 chap. 801 requires documentary verification by the consignor concerning package compliance with the requirements. (authors)« less

  5. Advanced extravehicular activity systems requirements definition study

    NASA Technical Reports Server (NTRS)

    1988-01-01

    A study to define the requirements for advanced extravehicular activities (AEVA) was conducted. The purpose of the study was to develop an understanding of the EVA technology requirements and to map a pathway from existing or developing technologies to an AEVA system capable of supporting long-duration missions on the lunar surface. The parameters of an AEVA system which must sustain the crewmembers and permit productive work for long periods in the lunar environment were examined. A design reference mission (DRM) was formulated and used as a tool to develop and analyze the EVA systems technology aspects. Many operational and infrastructure design issues which have a significant influence on the EVA system are identified.

  6. TWT design requirements for 30/20 GHz digital communications' satellite

    NASA Technical Reports Server (NTRS)

    Stankiewicz, N.; Anzic, G.

    1979-01-01

    The rapid growth of communication traffic (voice, data, and video) requires the development of additional frequency bands before the 1990's. The frequencies currently in use for satellite communications at 6/4 GHz are crowded and demands for 14/12 GHz systems are increasing. Projections are that these bands will be filled to capacity by the late 1980's. The next higher frequency band allocated for satellite communications is at 30/20 GHz. For interrelated reasons of efficiency, power level, and system reliability criteria, a candidate for the downlink amplifier in a 30/20 GHz communications' satellite is a dual mode traveling wave tube (TWT) equipped with a highly efficient depressed collector. A summary is given of the analyses which determine the TWT design requirements. The overall efficiency of such a tube is then inferred from a parametric study and from experimental data on multistaged depressed collectors. The expected TWT efficiency at 4 dB below output saturation is 24 percent in the high mode and 22 percent in the low mode.

  7. Design of a modular digital computer system, DRL 4. [for meeting future requirements of spaceborne computers

    NASA Technical Reports Server (NTRS)

    1972-01-01

    The design is reported of an advanced modular computer system designated the Automatically Reconfigurable Modular Multiprocessor System, which anticipates requirements for higher computing capacity and reliability for future spaceborne computers. Subjects discussed include: an overview of the architecture, mission analysis, synchronous and nonsynchronous scheduling control, reliability, and data transmission.

  8. Technology and development requirements for advanced coal conversion systems

    NASA Technical Reports Server (NTRS)

    1981-01-01

    A compendium of coal conversion process descriptions is presented. The SRS and MC data bases were utilized to provide information paticularly in the areas of existing process designs and process evaluations. Additional information requirements were established and arrangements were made to visit process developers, pilot plants, and process development units to obtain information that was not otherwise available. Plant designs, process descriptions and operating conditions, and performance characteristics were analyzed and requirements for further development identified and evaluated to determine the impact of these requirements on the process commercialization potential from the standpoint of economics and technical feasibility. A preliminary methodology was established for the comparative technical and economic assessment of advanced processes.

  9. Conceptual Design of Low-Boom Aircraft with Flight Trim Requirement

    NASA Technical Reports Server (NTRS)

    Ordaz, Irian; Geiselhart, Karl A.; Fenbert, James W.

    2014-01-01

    A new low-boom target generation approach is presented which allows the introduction of a trim requirement during the early conceptual design of supersonic aircraft. The formulation provides an approximation of the center of pressure for a presumed aircraft configuration with a reversed equivalent area matching a low-boom equivalent area target. The center of pressure is approximated from a surrogate lift distribution that is based on the lift component of the classical equivalent area. The assumptions of the formulation are verified to be sufficiently accurate for a supersonic aircraft of high fineness ratio through three case studies. The first two quantify and verify the accuracy and the sensitivity of the surrogate center of pressure corresponding to shape deformation of lifting components. The third verification case shows the capability of the approach to achieve a trim state while maintaining the low-boom characteristics of a previously untrimmed configuration. Finally, the new low-boom target generation approach is demonstrated through the early conceptual design of a demonstrator concept that is low-boom feasible, trimmed, and stable in cruise.

  10. Functional requirements for the man-vehicle systems research facility. [identifying and correcting human errors during flight simulation

    NASA Technical Reports Server (NTRS)

    Clement, W. F.; Allen, R. W.; Heffley, R. K.; Jewell, W. F.; Jex, H. R.; Mcruer, D. T.; Schulman, T. M.; Stapleford, R. L.

    1980-01-01

    The NASA Ames Research Center proposed a man-vehicle systems research facility to support flight simulation studies which are needed for identifying and correcting the sources of human error associated with current and future air carrier operations. The organization of research facility is reviewed and functional requirements and related priorities for the facility are recommended based on a review of potentially critical operational scenarios. Requirements are included for the experimenter's simulation control and data acquisition functions, as well as for the visual field, motion, sound, computation, crew station, and intercommunications subsystems. The related issues of functional fidelity and level of simulation are addressed, and specific criteria for quantitative assessment of various aspects of fidelity are offered. Recommendations for facility integration, checkout, and staffing are included.

  11. A Practical Bayesian Design to Identify the Maximum Tolerated Dose Contour for Drug Combination Trials

    PubMed Central

    Zhang, Liangcai; Yuan, Ying

    2016-01-01

    Drug combination therapy has become the mainstream approach to cancer treatment. One fundamental feature that makes combination trials different from single-agent trials is the existence of the maximum tolerated dose (MTD) contour, i.e., multiple MTDs. As a result, unlike single-agent phase I trials, which aim to find a single MTD, it is often of interest to find the MTD contour for combination trials. We propose a new dose-finding design, the waterfall design, to find the MTD contour for drug combination trials. Taking the divide-and-conquer strategy, the waterfall design divides the task of finding the MTD contour into a sequence of one-dimensional dose-finding processes, known as subtrials. The subtrials are conducted sequentially in a certain order, such that the results of each subtrial will be used to inform the design of subsequent subtrials. Such information borrowing allows the waterfall design to explore the two-dimensional dose space efficiently using a limited sample size, and decreases the chance of overdosing and underdosing patients. To accommodate the consideration that doses on the MTD contour may have very different efficacy or synergistic effects due to drug-drug interaction, we further extend our approach to a phase I/II design with the goal of finding the MTD with the highest efficacy. Simulation studies show that the waterfall design is safer and has higher probability of identifying the true MTD contour than some existing designs. The R package “BOIN” to implement the waterfall design is freely available from CRAN. PMID:27580928

  12. Structural Design Requirements and Factors of Safety for Spaceflight Hardware: For Human Spaceflight. Revision A

    NASA Technical Reports Server (NTRS)

    Bernstein, Karen S.; Kujala, Rod; Fogt, Vince; Romine, Paul

    2011-01-01

    This document establishes the structural requirements for human-rated spaceflight hardware including launch vehicles, spacecraft and payloads. These requirements are applicable to Government Furnished Equipment activities as well as all related contractor, subcontractor and commercial efforts. These requirements are not imposed on systems other than human-rated spacecraft, such as ground test articles, but may be tailored for use in specific cases where it is prudent to do so such as for personnel safety or when assets are at risk. The requirements in this document are focused on design rather than verification. Implementation of the requirements is expected to be described in a Structural Verification Plan (SVP), which should describe the verification of each structural item for the applicable requirements. The SVP may also document unique verifications that meet or exceed these requirements with NASA Technical Authority approval.

  13. Space shuttle orbiter guidance, naviagation and control software functional requirements: Horizontal flight operations

    NASA Technical Reports Server (NTRS)

    1972-01-01

    The shuttle GN&C software functions for horizontal flight operations are defined. Software functional requirements are grouped into two categories: first horizontal flight requirements and full mission horizontal flight requirements. The document privides the intial step in the shuttle GN&C software design process. It also serves as a management tool to identify analyses which are required to define requirements.

  14. Residential photovoltaic module and array requirements study

    NASA Technical Reports Server (NTRS)

    Nearhoof, S. L.; Oster, J. R.

    1979-01-01

    Design requirements for photovoltaic modules and arrays used in residential applications were identified. Building codes and referenced standards were reviewed for their applicability to residential photovoltaic array installations. Four installation types were identified - integral (replaces roofing), direct (mounted on top of roofing), stand-off (mounted away from roofing), and rack (for flat or low slope roofs, or ground mounted). Installation costs were developed for these mounting types as a function of panel/module size. Studies were performed to identify optimum module shapes and sizes and operating voltage cost drivers. It is concluded that there are no perceived major obstacles to the use of photovoltaic modules in residential arrays. However, there is no applicable building code category for residential photovoltaic modules and arrays and additional work with standards writing organizations is needed to develop residential module and array requirements.

  15. Transit safety retrofit package development : architecture and design specifications.

    DOT National Transportation Integrated Search

    2014-05-01

    The Architecture and Design Specifications capture the TRP system architecture and design that fulfills the technical objectives stated in the TRP requirements document. The document begins with an architectural overview that identifies and describes...

  16. Constellation Program Design Challenges as Opportunities for Educational Outreach and Workforce Development for Senior Design Classes

    NASA Technical Reports Server (NTRS)

    Trevino, Robert C.

    2009-01-01

    The Texas Space Grant Consortium (TSGC) and the Exploration Systems Mission Directorate (ESMD) both have programs that present design challenges for university senior design classes that offer great opportunities for educational outreach and workforce development. These design challenges have been identified by NASA engineers and researchers as real design problems faced by the Constellation Program in its exploration missions and architecture. Student teams formed in their senior design class select and then work on a design challenge for one or two semesters. The senior design class follows the requirements set by their university, but it must also comply with the Accreditation Board for Engineering and Technology (ABET) in order to meet the class academic requirements. Based on a one year fellowship at a TSGC university under the NASA Administrator's Fellowship Program (NAFP) and several years of experience, results and metrics are presented on the NASA Design Challenge Program.

  17. Loads and Structural Dynamics Requirements for Spaceflight Hardware

    NASA Technical Reports Server (NTRS)

    Schultz, Kenneth P.

    2011-01-01

    The purpose of this document is to establish requirements relating to the loads and structural dynamics technical discipline for NASA and commercial spaceflight launch vehicle and spacecraft hardware. Requirements are defined for the development of structural design loads and recommendations regarding methodologies and practices for the conduct of load analyses are provided. As such, this document represents an implementation of NASA STD-5002. Requirements are also defined for structural mathematical model development and verification to ensure sufficient accuracy of predicted responses. Finally, requirements for model/data delivery and exchange are specified to facilitate interactions between Launch Vehicle Providers (LVPs), Spacecraft Providers (SCPs), and the NASA Technical Authority (TA) providing insight/oversight and serving in the Independent Verification and Validation role. In addition to the analysis-related requirements described above, a set of requirements are established concerning coupling phenomena or other interaction between structural dynamics and aerodynamic environments or control or propulsion system elements. Such requirements may reasonably be considered structure or control system design criteria, since good engineering practice dictates consideration of and/or elimination of the identified conditions in the development of those subsystems. The requirements are included here, however, to ensure that such considerations are captured in the design space for launch vehicles (LV), spacecraft (SC) and the Launch Abort Vehicle (LAV). The requirements in this document are focused on analyses to be performed to develop data needed to support structural verification. As described in JSC 65828, Structural Design Requirements and Factors of Safety for Spaceflight Hardware, implementation of the structural verification requirements is expected to be described in a Structural Verification Plan (SVP), which should describe the verification of each

  18. 10 CFR 36.39 - Design requirements.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... concrete and design the walls, wall penetrations, and entranceways to meet the radiation shielding... that the number, location, and spacing of the smoke and heat detectors are appropriate to detect fires... licensee shall design the reinforced concrete radiation shields to retain their integrity in the event of...

  19. 10 CFR 36.39 - Design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... concrete and design the walls, wall penetrations, and entranceways to meet the radiation shielding... that the number, location, and spacing of the smoke and heat detectors are appropriate to detect fires... licensee shall design the reinforced concrete radiation shields to retain their integrity in the event of...

  20. 10 CFR 36.39 - Design requirements.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... concrete and design the walls, wall penetrations, and entranceways to meet the radiation shielding... that the number, location, and spacing of the smoke and heat detectors are appropriate to detect fires... licensee shall design the reinforced concrete radiation shields to retain their integrity in the event of...

  1. 10 CFR 36.39 - Design requirements.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... concrete and design the walls, wall penetrations, and entranceways to meet the radiation shielding... that the number, location, and spacing of the smoke and heat detectors are appropriate to detect fires... licensee shall design the reinforced concrete radiation shields to retain their integrity in the event of...

  2. 10 CFR 36.39 - Design requirements.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... concrete and design the walls, wall penetrations, and entranceways to meet the radiation shielding... that the number, location, and spacing of the smoke and heat detectors are appropriate to detect fires... licensee shall design the reinforced concrete radiation shields to retain their integrity in the event of...

  3. Probabilistic Design of a Plate-Like Wing to Meet Flutter and Strength Requirements

    NASA Technical Reports Server (NTRS)

    Stroud, W. Jefferson; Krishnamurthy, T.; Mason, Brian H.; Smith, Steven A.; Naser, Ahmad S.

    2002-01-01

    An approach is presented for carrying out reliability-based design of a metallic, plate-like wing to meet strength and flutter requirements that are given in terms of risk/reliability. The design problem is to determine the thickness distribution such that wing weight is a minimum and the probability of failure is less than a specified value. Failure is assumed to occur if either the flutter speed is less than a specified allowable or the stress caused by a pressure loading is greater than a specified allowable. Four uncertain quantities are considered: wing thickness, calculated flutter speed, allowable stress, and magnitude of a uniform pressure load. The reliability-based design optimization approach described herein starts with a design obtained using conventional deterministic design optimization with margins on the allowables. Reliability is calculated using Monte Carlo simulation with response surfaces that provide values of stresses and flutter speed. During the reliability-based design optimization, the response surfaces and move limits are coordinated to ensure accuracy of the response surfaces. Studies carried out in the paper show the relationship between reliability and weight and indicate that, for the design problem considered, increases in reliability can be obtained with modest increases in weight.

  4. Rotor design for maneuver performance

    NASA Technical Reports Server (NTRS)

    Berry, John D.; Schrage, Daniel

    1986-01-01

    A method of determining the sensitivity of helicopter maneuver performance to changes in basic rotor design parameters is developed. Maneuver performance is measured by the time required, based on a simplified rotor/helicopter performance model, to perform a series of specified maneuvers. This method identifies parameter values which result in minimum time quickly because of the inherent simplicity of the rotor performance model used. For the specific case studied, this method predicts that the minimum time required is obtained with a low disk loading and a relatively high rotor solidity. The method was developed as part of the winning design effort for the American Helicopter Society student design competition for 1984/1985.

  5. 33 CFR 157.28 - Discharges from tank barges exempted from certain design requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 2 2010-07-01 2010-07-01 false Discharges from tank barges exempted from certain design requirements. 157.28 Section 157.28 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY (CONTINUED) POLLUTION RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL I...

  6. Manipulating the Geometric Computer-aided Design of the Operational Requirements-based Casualty Assessment Model within BRL-CAD

    DTIC Science & Technology

    2018-03-30

    ARL-TR-8336 ● MAR 2018 US Army Research Laboratory Manipulating the Geometric Computer-aided Design of the Operational...so designated by other authorized documents. Citation of manufacturer’s or trade names does not constitute an official endorsement or approval of...Army Research Laboratory Manipulating the Geometric Computer-aided Design of the Operational Requirements-based Casualty Assessment Model within

  7. 40 CFR 68.215 - Permit content and air permitting authority or designated agency requirements.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 15 2010-07-01 2010-07-01 false Permit content and air permitting authority or designated agency requirements. 68.215 Section 68.215 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS (CONTINUED) CHEMICAL ACCIDENT PREVENTION PROVISIONS Other...

  8. Avionic architecture requirements for Space Exploration Initiative systems

    NASA Technical Reports Server (NTRS)

    Herbella, C. G.; Brown, D. C.

    1991-01-01

    The authors discuss NASA's Strategic Avionics Technology Working Group (SATWG) and the results of the first study commissioned by the SATWG, the Space Avionics Requirements Study (SARS). The goal of the SARS task was to show that an open avionics architecture, using modular, standardized components, could be applied across the wide range of systems that comprise the Space Exploration Initiative. The study addressed systems ranging from expendable launch vehicles and the space station to surface systems such as Mars or lunar rovers and habitats. Top-level avionics requirements were derived from characterizations of each of the systems considered. Then a set of avionics subsystems were identified, along with estimates of the numbers and types of modules needed to meet the requirements. Applicability of these results across the infrastructure was then illustrated. In addition to these tasks, critical technologies were identified, characterized, and assessed in terms of their criticality and impact on the program. Design, development, test, and evaluation methods were addressed to identify potential areas of improvement.

  9. Design study of technology requirements for high performance single-propeller-driven business airplanes

    NASA Technical Reports Server (NTRS)

    Kohlman, D. L.; Hammer, J.

    1985-01-01

    Developments in aerodyamic, structural and propulsion technologies which influence the potential for significant improvements in performance and fuel efficiency of general aviation business airplanes are discussed. The advancements include such technolgies as natural laminar flow, composite materials, and advanced intermittent combustion engines. The design goal for this parameter design study is a range of 1300 nm at 300 knots true airspeed with a payload of 1200lbs at 35,000 ft cruise altitude. The individual and synergistic effects of various advanced technologies on the optimization of this class of high performance, single engine, propeller driven business airplanes are identified.

  10. Preliminary design specifications of a calcium model

    NASA Technical Reports Server (NTRS)

    1978-01-01

    A list of objectives, requirements, and guidelines are given for a calcium model. Existing models are reviewed and evaluated in relation to the stated objectives and requirements. The reviewed models were either too abstract or apparently invalidated. A technical approach to the design of a desirable model is identified.

  11. Evaluation in the Design of Complex Systems

    ERIC Educational Resources Information Center

    Ho, Li-An; Schwen, Thomas M.

    2006-01-01

    We identify literature that argues the process of creating knowledge-based system is often imbalanced. In most knowledge-based systems, development is often technology-driven instead of requirement-driven. Therefore, we argue designers must recognize that evaluation is a critical link in the application of requirement-driven development models…

  12. Gathering Requirements for Teacher Tools: Strategies for Empowering Teachers Through Co-Design

    NASA Astrophysics Data System (ADS)

    Matuk, Camillia; Gerard, Libby; Lim-Breitbart, Jonathan; Linn, Marcia

    2016-02-01

    Technology can enhance teachers' practice in multiple ways. It can help them better understand patterns in their students' thinking, manage class progress at individual and group levels, and obtain evidence to inform modifications to curriculum and instruction. Such technology is most effective when it is aligned with teachers' goals and expectations. Participatory methods, which involve teachers closely in the design process, are widely recommended for establishing accurate design requirements that address users' needs. By collaborating with researchers, teachers can contribute their professional expertise to shape the tools of their practice, and ultimately ensure their sustained use. However, there is little guidance available for maintaining effective teacher-researcher design partnerships. We describe four strategies for engaging teachers in designing tools intended to support and enhance their practice within a web-based science learning environment: discussing physical artifacts, reacting to scenarios, customizing prototypes, and writing user stories. Using design artifacts and documents of teachers' reflections, we illustrate how we applied these techniques over 5 years of annual professional development workshops, and examine their affordances for eliciting teachers' ideas. We reflect on how these approaches have helped inform technology refinements and innovations. We moreover discuss the further benefits these strategies have had in encouraging teachers to reflect on their own practice and on the roles of technology in supporting it; and in allowing researchers to gain a deeper understanding of the relationship between technology, teaching, and design.

  13. Gaining the Competitive Edge: Design for Manufacturing

    NASA Technical Reports Server (NTRS)

    Batill, Stephen M.; Pinkelman, Jim; Sellar, Richard

    1993-01-01

    The successful design of a commercial aircraft which is intended to be in direct competition with existing aircraft requires a market analysis to establish design requirements, the development of a concept to achieve those goals. and the ability to economically manufacture the aircraft. It is often the case that an engineer designs system components with only the perspective of a particular discipline. The relationship of that component to the entire system is often a minor consideration. In an effort to highlight the interaction that is necessary during the design process, the students were organized into design/build teams and required to integrate aspects of market analysis, engineering design, production and economics into their concepts. In order to facilitate this process a hypothetical "Aeroworld" was established. Having been furnished relevant demographic and economic data for "Aeroworld". students were given the task of designing and building an aircraft for a specific market while achieving an economically competitive design. Involvement of the team in the evolution of the design from market definition to technical development to manufacturing allowed the students to identify critical issues in the design process and to encounter many of the conflicting requirements which arise in an aerospace systems design.

  14. The microwave radiometer spacecraft: A design study

    NASA Technical Reports Server (NTRS)

    Wright, R. L. (Editor)

    1981-01-01

    A large passive microwave radiometer spacecraft with near all weather capability of monitoring soil moisture for global crop forecasting was designed. The design, emphasizing large space structures technology, characterized the mission hardware at the conceptual level in sufficient detail to identify enabling and pacing technologies. Mission and spacecraft requirements, design and structural concepts, electromagnetic concepts, and control concepts are addressed.

  15. Mobile NBM - Android medical mobile application designed to help in learning how to identify the different regions of interest in the brain's white matter.

    PubMed

    Sánchez-Rola, Iskander; Zapirain, Begoña García

    2014-07-18

    One of the most critical tasks when conducting neurological studies is identifying the different regions of interest in the brain's white matter. Currently few programs or applications are available that serve as an interactive guide in this process. This is why a mobile application has been designed and developed in order to teach users how to identify the referred regions of the brain. It also enables users to share the results obtained and take an examination on the knowledge thus learnt. In order to provide direct user-user or user-developer contact, the project includes a website and a Twitter account. An application has been designed with a basic, minimalist look, which anyone can access easily in order to learn to identify a specific region in the brain's white matter. A survey has also been conducted on people who have used it, which has shown that the application is attractive both in the student (final mean satisfaction of 4.2/5) and in the professional (final mean satisfaction of 4.3/5) environment. The response obtained in the online part of the project reflects the high practical value and quality of the application, as shown by the fact that the website has seen a large number of visitors (over 1000 visitors) and the Twitter account has a high number of followers (over 280 followers). Mobile NBM is the first mobile application to be used as a guide in the process of identifying a region of interest in the brain's white matter. Although initially not many areas are available in the application, new ones can be added as required by users in their respective studies. Apart from the application itself, the online resources provided (website and Twitter account) significantly enhance users' experience.

  16. 40 CFR 174.529 - Bacillus thuringiensis modified Cry1Ab protein as identified under OECD Unique Identifier SYN...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... protein as identified under OECD Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement... Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement of a tolerance. Residues of... exempt from the requirement of a tolerance when used as a plant-incorporated protectant in cotton; cotton...

  17. 40 CFR 174.529 - Bacillus thuringiensis modified Cry1Ab protein as identified under OECD Unique Identifier SYN...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... protein as identified under OECD Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement... Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement of a tolerance. Residues of... exempt from the requirement of a tolerance when used as a plant-incorporated protectant in cotton; cotton...

  18. 40 CFR 174.529 - Bacillus thuringiensis modified Cry1Ab protein as identified under OECD Unique Identifier SYN...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... protein as identified under OECD Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement... Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement of a tolerance. Residues of... exempt from the requirement of a tolerance when used as a plant-incorporated protectant in cotton; cotton...

  19. 40 CFR 174.529 - Bacillus thuringiensis modified Cry1Ab protein as identified under OECD Unique Identifier SYN...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... protein as identified under OECD Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement... Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement of a tolerance. Residues of... exempt from the requirement of a tolerance when used as a plant-incorporated protectant in cotton; cotton...

  20. 40 CFR 174.529 - Bacillus thuringiensis modified Cry1Ab protein as identified under OECD Unique Identifier SYN...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... protein as identified under OECD Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement... Unique Identifier SYN-IR67B-1 in cotton; exemption from the requirement of a tolerance. Residues of... exempt from the requirement of a tolerance when used as a plant-incorporated protectant in cotton; cotton...