Sample records for driver support systems

  1. When will Advanced Driver Support Systems be User-Adaptive? The Case of Adaptive Cruise Control

    Microsoft Academic Search

    Rita Kovordányi

    Advanced driver support systems are often used by drivers as comfort systems. Drivers tend to adapt their behavior to the increased safety margins created by the system by driving at higher speeds and paying less attention to driving. From a traffic safety perspective, it is therefore important that driver support systems can adapt their support to how drivers actually use

  2. EPICS : operating system independent device\\/driver support

    Microsoft Academic Search

    Martin R. Kraimer

    2003-01-01

    Originally EPICS input\\/output controllers (IOCs) were only supported on VME-based systems running the vxWorks operating system. Now IOCs are supported on many systems: vxWorks, RTEMS, Solaris, HPUX, Linux, WIN32, and Darwin. A challenge is to provide operating-system-independent device and driver support. This paper presents some techniques for providing such support. EPICS (Experimental Physics and Industrial Control System) is a set

  3. EPICS : operating system independent device/driver support.

    SciTech Connect

    Kraimer, M. R.; Accelerator Systems Division (APS)

    2003-01-01

    Originally EPICS input/output controllers (IOCs) were only supported on VME-based systems running the vxWorks operating system. Now IOCs are supported on many systems: vxWorks, RTEMS, Solaris, HPUX, Linux, WIN32, and Darwin. A challenge is to provide operating-system-independent device and driver support. This paper presents some techniques for providing such support. EPICS (Experimental Physics and Industrial Control System) is a set of software tools, libraries, and applications developed collaboratively and used worldwide to create distributed, real-time control systems for scientific instruments such as particle accelerators, telescopes, and other large scientific experiments. An important component of all EPICS-based control systems is a collection of input/output controllers (IOCs). An IOC has three primary components: (1) a real-time database; (2) channel access, which provides network access to the database; and (3) device/driver support for interfacing to equipment. This paper describes some projects related to providing device/driver support on non-vxWorks systems. In order to support IOCs on platforms other than vxWorks, operating-system-independent (OSI) application program interfaces (APIs) were defined for threads, semaphores, timers, etc. Providing support for a new platform consists of providing an operating-system-dependent implementation of the OSI APIs.

  4. When will Advanced Driver Support Systems be User-Adaptive? The Case of Adaptive Cruise Control

    E-print Network

    Kovordányi, Rita

    When will Advanced Driver Support Systems be User-Adaptive? The Case of Adaptive Cruise Control) in driver support systems, such as the Adaptive Cruise Control (ACC) that is offered in many serial by drivers as comfort systems. Drivers tend to adapt their behavior to the increased safety margins created

  5. Application of ecological interface design to driver support systems

    E-print Network

    Lee, John D.

    -vehicle technology. Keywords: Collision warning systems, Automation, cognitive work analysis, adaptive cruise control for improving driver safety and performance. These technologies, which range from adaptive cruise control that participants adapted with a similar speed to the traditional and EID-inspired displays and that one EID

  6. Contributing Factors to Driver's Over-trust in a Driving Support System for Workload Reduction

    NASA Astrophysics Data System (ADS)

    Itoh, Makoto

    Avoiding over-trust in machines is a vital issue in order to establish intelligent driver support systems. It is necessary to distinguish systems for workload reduction from systems for accident prevention/mitigation. This study focuses on over-trust in an Adaptive Cruise Control (ACC) system as a typical driving support system for workload reduction. By conducting an experiment, we obtained a case in which a driver trusted the ACC system too much. Concretely speaking, the driver just watched the ACC system crashing into a stopped car even though the ACC system was designed to ignore such stopped cars. This paper investigates possible contributing factors to the driver' s over-trust in the ACC system. The results suggest that emerging trust in the dimension of performance may cause over-trust in the dimension of method or purpose.

  7. Automatic vehicle identification to support driver information systems

    Microsoft Academic Search

    P. Davies; C. Hill; N. Emmott

    1989-01-01

    The authors describe how research in automatic vehicle identification (AVI) technology can be transferred to practical transportation engineering situations. They focus on the development and implementation, for the Virginia Department of Transportation, of an AVI-based electronic toll collection system known as Fastoll. One of the most promising areas where the Fastoll system could be enhanced relatively easily is through the

  8. Drivers license display system

    NASA Astrophysics Data System (ADS)

    Prokoski, Francine J.

    1997-01-01

    Carjackings are only one of a growing class of law enforcement problems associated with increasingly violent crimes and accidents involving automobiles plays weapons, drugs and alcohol. Police traffic stops have become increasingly dangerous, with an officer having no information about a vehicle's potentially armed driver until approaching him. There are 15 million alcoholics in the US and 90 percent of them have drivers licenses. Many of them continue driving even after their licenses have ben revoked or suspended. There are thousands of unlicensed truck drivers in the country, and also thousands who routinely exceed safe operating periods without rest; often using drugs in an attempt to stay alert. MIKOS has developed the Drivers License Display Systems to reduce these and other related risks. Although every state requires the continuous display of vehicle registration information on every vehicle using public roads, no state yet requires the display of driver license information. The technology exists to provide that feature as an add-on to current vehicles for nominal cost. An initial voluntary market is expected to include: municipal, rental, and high value vehicles which are most likely to be mis-appropriated. It is anticipated that state regulations will eventually require such systems in the future, beginning with commercial vehicles, and then extending to high risk drivers and eventually all vehicles. The MIKOS system offers a dual-display approach which can be deployed now, and which will utilize all existing state licenses without requiring standardization.

  9. Investigation on high inductive helical supported magnetically insulated transmission line on a 10-stage linear transformer driver system

    NASA Astrophysics Data System (ADS)

    Zou, Wenkang; Chen, Lin; Liu, Dagang; Zhang, Le; Liu, Laqun; Zhou, Liangji; Wang, Meng; Wei, Bing; Guo, Fan; Wang, Xueqiong; Dai, Yingmin; Xie, Weiping; Deng, Jianjun

    2012-11-01

    Magnetically insulated transmission lines (MITLs), which could transfer power density up to TW/cm2, are one of the most important technologies in pulsed power. In pulsed power systems for the Z-pinch fusion or radiography, a long MITL acts as a transmission line as well as a spatial isolation between load and driver. The length of MITLs in such systems will be up to a few, even tens of meters. However, the anode and cathode (A-K) gap is only a few centimeters to make the centering of the MITL’s electrodes be one of the most challenging issues. Cathodes of long coaxial MITLs, such as that of Hermes-III and RITS, are fixed at the low voltage end while keeping the other end free of support. However, such a method will be very difficult for longer MITLs due to gravity and engineering reasons. An interesting question for such MITL design is to find a way to position the electrodes to the ideal position while hardly damaging the power flow. It is also a very practical concern in the construction of large pulsed-power facilities. In this paper, a high inductive helical supported MITL in a 10-stage linear transformer driver system is investigated. Both experiments and particle-in-cell simulations show that magnetic insulation is well established and power flow could be transmitted to load efficiently.

  10. Advanced driver information systems

    Microsoft Academic Search

    James H. Rillings; Robert J. Betsold

    1991-01-01

    It is predicted that over the next 20 years, advanced driver information systems for North America will evolve through three stages: the information stage, the advisory stage, and the coordination stage. For each stage, the likely goals, vehicle equipment and infrastructure, expected benefits, research and development required, deployment issues, and obstacles and constraints are discussed. A series of operational field

  11. Smartphone-Based NoviceTeenage Driver Support System www.its.umn.edu/Research/2009015

    E-print Network

    Levinson, David M.

    of fatalities among teen drivers.TheTDSS also prevents incoming and outgoing cell phone calls (except 911) and text messaging while driving.The visual feedback interface is designed around simple, easy-to-understand graphical elements, such as iconic traffic signs that change color depending on speed or current conditions

  12. Traveler information in support of driver's diversion decisions: A survey of driver's preferences

    Microsoft Academic Search

    Richard R. Wallace; F. M. Streff

    1993-01-01

    Results from the analysis of a survey of drivers' information needs and preferences are presented. Emphasis is placed on drivers' preferences for traveler information in support of diversion decisions. In particular, the effects of different trip types on drivers' information needs are examined using several approaches, including factor and discriminant analysis. The findings, while revealing some consistency between drivers' reported

  13. EPICS: Allen Bradley driver and device support

    SciTech Connect

    Kraimer, M. [Argonne National Lab., IL (United States); Daelsio, B. [Los Alamos National Lab., NM (United States)

    1996-02-01

    EPICS provides support for the Allen Bradley VMEbus I/O Scanner. Support consists of a driver and device support. The driver provides the following features: Support for 8, 16, and 32 bit digital I/O modules. Inputs can be scanned such that the caller is notified whenever one or more bits of an input or output card change. Arbitrary Block Transfers (Input and Output) with the caller being notified when the block transfer completes or times out. Software scanning of analog output and input modules. Device support is provided for the following record types: ai, ao, bi, bo, mbbi, mbbo, mbbiDirect, and mbboDirect. This document describes the version of the Allen Bradley support that first appeared in EPICS release 3.12.beta11. The adapter and card status commands were not available until 3.12.beta12. The reader should also consult the manuals EPICS: Allen Bradley - Hardware Reference Manual, Greg Nawrocki, Allen Bradley manuals: VME scanner, I/O concepts, and various I/O modules.

  14. Drivers license display system

    Microsoft Academic Search

    Francine J. Prokoski

    1997-01-01

    Carjackings are only one of a growing class of law enforcement problems associated with increasingly violent crimes and accidents involving automobiles plays weapons, drugs and alcohol. Police traffic stops have become increasingly dangerous, with an officer having no information about a vehicle's potentially armed driver until approaching him. There are 15 million alcoholics in the US and 90 percent of

  15. Real-Time Detection of Driver Cognitive Distraction Using Support Vector Machines

    Microsoft Academic Search

    Yulan Liang; Michelle L. Reyes; John D. Lee

    2007-01-01

    As use of in-vehicle information systems (IVISs) such as cell phones, navigation systems, and satellite radios has increased, driver distraction has become an important and growing safety concern. A promising way to overcome this problem is to detect driver distraction and adapt in-vehicle systems accordingly to mitigate such distractions. To realize this strategy, this paper applied support vector machines (SVMs),

  16. Steering Assistance System for Driver Characteristics using Gain Scheduling Control

    E-print Network

    Adachi, Shuichi

    Steering Assistance System for Driver Characteristics using Gain Scheduling Control Yukihiro Shimotakanezawa, Haga-machi, Haga-gun, Tochigi, 321-3393, Japan Fax: +81-28-677-6730 Phone: +81-28-677-7259 e@cc.utsunomiya-u.ac.jp Keywords:Driver support system, Vehicle control, H control, Gain-scheduling control, LMI. Abstract

  17. Systems modeling for heavy ion drivers - an induction linac example

    SciTech Connect

    Meier, W.R.; Bangerter, R.O.; Faltens, A.

    1997-09-30

    A source-to-target model for a induction linac driver for heavy ion fusion has been developed and is described here. Design features for a reference case driver that meets the requirements of one current target design are given, and the systems analyses supporting the point design are discussed. Directions for future work are noted.

  18. IEEE TRANS. ON INTELLIGENT TRANSPORTATION SYSTEMS, VOL. XX, NO. XX, SEPTEMBER 2013 1 Supporting Drivers in Keeping Safe Speed in

    E-print Network

    Boyer, Edmond

    of crashes by means of a generic scenario of accident. Within this scenario, the difference in speed, automated control of speeds has proven very efficient to reduce accidents in England, Netherlands Drivers in Keeping Safe Speed in Adverse Weather Conditions by Mitigating the Risk Level Romain Gallen

  19. The TravTek driver information system

    Microsoft Academic Search

    Mark K. Krage

    1991-01-01

    TravTek is a public sector - private sector program to demonstrate an advanced driver information system in Orlando, Florida for a period of one year, beginning in January 1992. A total of one hundred rental and lease vehicles will be equipped with driver information systems, which will provide navigation, route selection and guidance, real-time traffic information, local information, and cellular

  20. Agent-Based Drivers' Information Assistance System

    Microsoft Academic Search

    Masanori Hattori; Naoki Kase; Akihiko Ohsuga; Shinichi Honiden

    1999-01-01

    Drivers’ Information Assistance System (DIA system)” is an ITS (Intelligent Transport Systems) application framework that\\u000a provides agent-based information assistance to drivers through car navigation systems or on-board PCs.\\u000a \\u000a DIA system enables flexible information retrieval over the Internet using intelligent mobile agent, and incorporates a high-speed\\u000a event delivery facility that makes real-time information service possible. The goal of the system is

  1. 49 CFR 384.220 - Problem Driver Pointer System information.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... false Problem Driver Pointer System information. 384.220 ...220 Problem Driver Pointer System information. Before issuing...check of the Problem Driver Pointer System...based on that information, promptly...

  2. 49 CFR 384.220 - Problem Driver Pointer System information.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... false Problem Driver Pointer System information. 384.220 ...220 Problem Driver Pointer System information. Before issuing...check of the Problem Driver Pointer System...based on that information, promptly...

  3. 49 CFR 384.220 - Problem Driver Pointer System information.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... false Problem Driver Pointer System information. 384.220 ...220 Problem Driver Pointer System information. Before issuing...check of the Problem Driver Pointer System...based on that information, promptly...

  4. 49 CFR 384.220 - Problem Driver Pointer System information.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... false Problem Driver Pointer System information. 384.220 ...220 Problem Driver Pointer System information. Before issuing...check of the Problem Driver Pointer System...based on that information, promptly...

  5. Global driver information systems: a European concept

    Microsoft Academic Search

    Klaus Everts

    1993-01-01

    Within the scope of the CEC programme DRIVE I an international consortium consisting of seven European partners worked on project V1024 ‘Driver Information Systems’ DIS. The goal of the project was to specify the integration of existing systems into a comprehensive DIS operating across Europe, to determine various kinds of requirements, to investigate and develop a system architecture and to

  6. MACHINE LEARNING SYSTEMS FOR DETECTING DRIVER DROWSINESS

    Microsoft Academic Search

    Esra Vural; Müjdat Çetin; Aytül Erçil

    The advance of computing technology has provided the means for building intelligent vehicle systems. Drowsy driver detection system is one of the potential applications of intelligent vehicle systems. Previous approaches to drowsiness detection primarily make pre-assumptions about the relevant behavior, focusing on blink rate, eye closure, and yawning. Here we employ machine learning to data-mine actual human behavior during drowsiness

  7. Facial recognition system for driver vigilance monitoring

    Microsoft Academic Search

    H. J. Dikkers; M. A. Spaans; Dragos Datcu; Mirko Novak; Léon J. M. Rothkrantz

    2004-01-01

    Many automobile accidents are related to drivers lacking required levels of vigilance to properly control their vehicles. In this paper we present a system that monitors the activity of parts of the face, in particular the eyes, in order to predict expressions of somnolence. The input to the system is a sequence of images of the face of a car

  8. Japanese perspective of driver information systems

    Microsoft Academic Search

    Hironao Kawashima

    1990-01-01

    A perspective view of of Japanese R&D activities of Driver Information Systems is given from the standpoint of developing joint projects by public and private sectors. First, a brief history of the R&D activities is illustrated from above mentioned standpoint. Then, two major projects, AMTICS and RACS, and the social backgrounds of these projects are explained. In order to give

  9. Recommender system for drivers of electric vehicles

    Microsoft Academic Search

    Joao Ferreira; Pedro Pereira; Porfirio Filipe; Joao Afonso

    2011-01-01

    Being the next big step in automobile industry, electric vehicles continue to have limited autonomy which associated with the long charging times, limited charging stations and undeveloped smart grid infrastructure demands for a hard planning of the daily use of the vehicle. This paper presents an information system that will help the driver in the daily use of his electric

  10. Human-factors engineering for smart transport: design support for car drivers and train traffic controllers.

    PubMed

    Lenior, Dick; Janssen, Wiel; Neerincx, Mark; Schreibers, Kirsten

    2006-07-01

    The theme Smart Transport can be described as adequate human-system symbiosis to realize effective, efficient and human-friendly transport of goods and information. This paper addresses how to attune automation to human (cognitive) capacities (e.g. to take care of information uncertainty, operator trust and mutual man-machine adaptations). An introduction to smart transport is presented, including examples of best practice for engineering human factors in the vehicle ergonomics and train traffic control domain. The examples are representative of an ongoing trend in automation and they show how the human role changes from controller to supervisor. Section 2 focuses on the car driver and systems that support, or sometimes even take over, critical parts of the driving task. Due to the diversity of driver ability, driving context and dependence between driver and context factors, there is a need for personalised, adaptive and integrated support. Systematic research is needed to establish sound systems. Section 3 focuses on the train dispatcher support systems that predict train movements, detect potential conflicts and show the dispatcher the possibilities available to solve the detected problems. Via thorough analysis of both the process to be controlled and the dispatcher's tasks and cognitive needs, support functions were developed as part of an already very complex supervision and control system. The two examples, although from a different field, both show the need for further development in cognitive modelling as well as for the value of sound ergonomics task analysis in design practice. PMID:16765905

  11. Machine Learning Systems for Detecting Driver Drowsiness

    Microsoft Academic Search

    Esra Vural; Müjdat Çetin; Aytül Erçil; Gwen Littlewort; Marian Bartlett; Javier Movellan

    \\u000a Drowsy driver detection is one of the potential applications of intelligent vehicle systems. Previous approaches to drowsiness\\u000a detection primarily make pre-assumptions about the relevant behavior, focusing on blink rate, eye closure, and yawning. Here\\u000a we employ machine learning to datamine actual human behavior during drowsiness episodes. Automatic classifiers for 30 facial\\u000a actions from the facial action coding system were developed

  12. Support Systems

    E-print Network

    Wood, Jody

    2009-04-28

    thesis: SUPORT SYSTEMS Commite: __________________________ Chairperson __________________________ __________________________ Date approved: March 24, 2009 iii Abstract Support... has a double-edged consequence. On one hand it offers anonymity. But the resulting privacy comes at a cost ? it requires emotional distance; that distance is what can make someone fel lonely in a crowded room. A study published in 2006 by American...

  13. Evaluation of Driver Assistance Systems--A Human Centered Approach

    E-print Network

    Peng, Huei

    used to evaluate the impact of Adaptive Cruise Control (ACC) vehicles on traffic flow. A lateral driver-prevention. Keywords / Human driver models, driver assistance systems, adaptive cruise control, vehicle stability the comfort, safety and efficiency of ground vehicles. Examples include adaptive cruise control (ACC), vehicle

  14. Global drivers, sustainable manufacturing and systems ergonomics.

    PubMed

    Siemieniuch, C E; Sinclair, M A; Henshaw, M J deC

    2015-11-01

    This paper briefly explores the expected impact of the 'Global Drivers' (such as population demographics, food security; energy security; community security and safety), and the role of sustainability engineering in mitigating the potential effects of these Global Drivers. The message of the paper is that sustainability requires a significant input from Ergonomics/Human Factors, but the profession needs some expansion in its thinking in order to make this contribution. Creating a future sustainable world in which people experience an acceptable way of life will not happen without a large input from manufacturing industry into all the Global Drivers, both in delivering products that meet sustainability criteria (such as durability, reliability, minimised material requirement and low energy consumption), and in developing sustainable processes to deliver products for sustainability (such as minimum waste, minimum emissions and low energy consumption). Appropriate changes are already being implemented in manufacturing industry, including new business models, new jobs and new skills. Considerable high-level planning around the world is in progress and is bringing about these changes; for example, there is the US 'Advanced Manufacturing National Program' (AMNP)', the German 'Industrie 4.0' plan, the French plan 'la nouvelle France industrielle' and the UK Foresight publications on the 'Future of Manufacturing'. All of these activities recognise the central part that humans will continue to play in the new manufacturing paradigms; however, they do not discuss many of the issues that systems ergonomics professionals acknowledge. This paper discusses a number of these issues, highlighting the need for some new thinking and knowledge capture by systems ergonomics professionals. Among these are ethical issues, job content and skills issues. Towards the end, there is a summary of knowledge extensions considered necessary in order that systems ergonomists can be fully effective in this new environment, together with suggestions for the means to acquire and disseminate the knowledge extensions. PMID:26154210

  15. Towards Cultural Adaptability in Driver Information and Assistance Systems

    Microsoft Academic Search

    Rüdiger Heimgärtner

    2007-01-01

    This paper elucidates and discusses some aspects of cultural adaptability. It describes the concept, influence and Use Cases\\u000a of cultural adap-tability in driver information and assistance systems exemplified by driver navigation systems. Thereby,\\u000a the reasons, advantages and problems of using adaptability regarding driving safety and driver preferences will be addressed.\\u000a The results of two online studies concerning use cases of

  16. Driving into the Sunset: Supporting Cognitive Functioning in Older Drivers

    PubMed Central

    Young, Mark S.; Bunce, David

    2011-01-01

    The rise in the aging driver population presents society with a significant challenge—how to maintain safety and mobility on the roads. On the one hand, older drivers pose a higher risk of an at-fault accident on a mile-for-mile basis; on the other hand, independent mobility is a significant marker of quality of life in aging. In this paper, we review the respective literatures on cognitive neuropsychology and ergonomics to suggest a previously unexplored synergy between these two fields. We argue that this conceptual overlap can form the basis for future solutions to what has been called “the older driver problem.” Such solutions could be found in a range of emerging driver assistance technologies offered by vehicle manufacturers, which have the potential to compensate for the specific cognitive decrements associated with aging that are related to driving. PMID:21748014

  17. Extraction of driver behavior information from traffic video to support microscopic traffic simulation

    Microsoft Academic Search

    Alan C. Chachich; Masroor Hasan; David Cuneo

    1998-01-01

    Microscopic traffic simulators capture the effects of driver behavior and so provide results not available from other types of traffic simulation. In order to fulfil this potential though, the behavior related models in the simulator must use parameters based on real measured driver behavior. We have turned to analyzing locally collected video traffic data to support our simulation of a

  18. Extraction of Driver Behavior Information from Traffic Video to Support Microscopic Traffic Simulation

    Microsoft Academic Search

    Alan Chachich; Masroor Hasan; David Cuneoa

    1997-01-01

    Microscopic traffic simulators capture the effects of driver behavior and so provide results not available from other types of traffic simulation. In order to fulfill this potential though, the behavior related models in the simulator must use parameters based on real measured driver behavior. We have turned to analyzing locally collected video traffic data to support our simulation of a

  19. Improved gauge driver for the generalized harmonic Einstein system

    SciTech Connect

    Lindblom, Lee; Szilagyi, Bela [Theoretical Astrophysics 350-17, California Institute of Technology, Pasadena, California 91125 (United States)

    2009-10-15

    A new gauge driver is introduced for the generalized harmonic (GH) representation of Einstein's equation. This new driver allows a rather general class of gauge conditions to be implemented in a way that maintains the hyperbolicity of the combined evolution system. This driver is more stable and effective and, unlike previous drivers, allows stable evolutions using the dual-frame evolution technique. Appropriate boundary conditions for this new gauge driver are constructed, and a new boundary condition for the 'gauge' components of the spacetime metric in the GH Einstein system is introduced. The stability and effectiveness of this new gauge driver are demonstrated through numerical tests, which impose a new damped-wave gauge condition on the evolutions of single black-hole spacetimes.

  20. Car drivers' perceptions of electronic stability control (ESC) systems.

    PubMed

    Vadeby, Anna; Wiklund, Mats; Forward, Sonja

    2011-05-01

    As a way to reduce the number of car crashes different in-car safety devices are being introduced. In this paper one such application is being investigated, namely the electronic stability control system (ESC). The study used a survey method, including 2000 private car drivers (1000 driving a car with ESC and 1000 driving a car without ESC). The main objective was to investigate the effect of ESC on driver behaviour. Results show that drivers report that they drive even more carelessly when they believe that they have ESC, than when they do not. Men are more risk prone than women and young drivers more than older drivers. Using the theory of planned behaviour the results show that attitude, subjective norm and perceived control explain between 62% and 67% of driver's variation of intentions to take risks. When descriptive norm was added to the model a small but statistically significant increase was found. The study also shows that more than 35% erroneously believe that their car is equipped with an ESC system. These findings may suggest that driver behaviour could reduce the positive effect ESC has on accidents. It also shows that drivers who purchase a new car are not well informed about what kind of safety devices the car is equipped with. These findings highlight the need for more targeted information to drivers. PMID:21376858

  1. DIRECT: A comparison of alternative driver information systems

    Microsoft Academic Search

    R. Kent Gilbert; Steve E. Underwood; Leo E. DeFrain

    1991-01-01

    The Michigan Department of Transportation (MDOT) recently initiated a three-year program named DIRECT, which stands for Driver Information Radio Experimenting with Communication Technologies. The DIRECT Project has been designed specifically to test, in an operational setting, alternative driver-information systems. DIRECT is being undertaken as a national IVHS operational field test and is funded through a public\\/ private partnership between FHWA

  2. Driver performance data acquisition system for ergonomics research

    SciTech Connect

    Carter, R.J. [Oak Ridge National Lab., TN (United States). Engineering Physics and Mathematics Div.; Goodman, M.J. [National Highway Traffic Safety Administration, Washington, DC (United States). Office of Crash Avoidance Research

    1994-12-31

    A portable ergonomics data acquisition system consisting of state-of-the-art hardware being designed is described here. It will be employed to record driver, vehicle, and environment parameter data from a wide range of vehicles and trucks. The system will be unobtrusive to the driver and inconspicuous to the outside world. It will have three modes of data gathering and provide for extended periods of data collection. Modularity, flexibility, and cost will be key drivers in the development effort. The ergonomics data acquisition system project is being conducted in two phases--a feasibility study and a development, construction, and validation phase.

  3. An Optimization Framework for Driver Feedback Systems

    SciTech Connect

    Malikopoulos, Andreas [ORNL; Aguilar, Juan P. [Georgia Institute of Technology

    2013-01-01

    Modern vehicles have sophisticated electronic control units that can control engine operation with discretion to balance fuel economy, emissions, and power. These control units are designed for specific driving conditions (e.g., different speed profiles for highway and city driving). However, individual driving styles are different and rarely match the specific driving conditions for which the units were designed. In the research reported here, we investigate driving-style factors that have a major impact on fuel economy and construct an optimization framework to optimize individual driving styles with respect to these driving factors. In this context, we construct a set of polynomial metamodels to reflect the responses produced in fuel economy by changing the driving factors. Then, we compare the optimized driving styles to the original driving styles and evaluate the effectiveness of the optimization framework. Finally, we use this proposed framework to develop a real-time feedback system, including visual instructions, to enable drivers to alter their driving styles in response to actual driving conditions to improve fuel efficiency.

  4. Selection of Driver Systems for Large Compressors

    Microsoft Academic Search

    William B. Wilson

    1967-01-01

    With the large horsepowers required for centrifugal compressors in the process industry today, driver selection has an important effect on overall plant profitability. This paper discusses some general application considerations, then presents price and performance data for electric motors, gas turbines, and steam turbines. These data will assist the process plant designer in selecting economic alternatives to be considered in

  5. Technical Feasibility of Advanced Driver Assistance Systems (ADAS) for Road Traffic Safety

    Microsoft Academic Search

    Meng Lu; Kees Wevers

    2005-01-01

    This paper explores the technical feasibility of five Advanced Driver Assistance System (ADAS) functions to contribute to road traffic safety, to reach stated European (EU) and national road traffic safety targets. These functions – enhanced navigation, speed assistance, collision avoidance, intersection support and lane keeping – were selected from previous research as adequate substitutes for infrastructure related measures. State-of-the-art enabling

  6. Human System Drivers for Exploration Missions

    NASA Technical Reports Server (NTRS)

    Kundrot, Craig E.; Steinberg, Susan; Charles, John B.

    2010-01-01

    Evaluation of DRM4 in terms of the human system includes the ability to meet NASA standards, the inclusion of the human system in the design trade space, preparation for future missions and consideration of a robotic precursor mission. Ensuring both the safety and the performance capability of the human system depends upon satisfying NASA Space Flight Human System Standards.1 These standards in turn drive the development of program-specific requirements for Near-earth Object (NEO) missions. In evaluating DRM4 in terms of these human system standards, the currently existing risk models, technologies and biological countermeasures were used. A summary of this evaluation is provided below in a structure that supports a mission architecture planning activities. 1. Unacceptable Level of Risk The duration of the DRM4 mission leads to an unacceptable level of risk for two aspects of human system health: A. The permissible exposure limit for space flight radiation exposure (a human system standard) would be exceeded by DRM4. B. The risk of visual alterations and abnormally high intracranial pressure would be too high. 1

  7. Development of Data Acquisition Card Driver for ICRH System on EAST

    NASA Astrophysics Data System (ADS)

    Liu, Daming; Luo, Jiarong; Zhao, Yanping; Qin, Chengming

    2008-04-01

    Presented in this paper is the development of the driver for the data acquisition card with a peripheral component interconnection (PCI) local bus on the ion cyclotron range of frequency heating (ICRH) system. The driver is mainly aimed at the embedded VxWorks system (real-time operating system) which is widely used in various fields of real-time systems. An efficient way is employed to develop this driver, which will advance the real-time control of the ICRH system on the experimental advanced superconductor tokamak (EAST). The driver is designed using the TORNADO integrated development environment (IDE), and implemented in C plus language. The details include the hardware configuration, analogue/digital (A/D) and digital/analogue (D/A) conversion, input and output (I/O) operation of the driver to support over five cards. The data acquisition card can be manipulated in a low-level program and meet the requirements of A/D conversion and D/A outputs.

  8. ERP Systems Implementation: Drivers of Post-Implementation Success

    Microsoft Academic Search

    Andreas I. Nicolaou

    This paper examines the determinants of success during the post-implementation stage of ERP systems and identifies drivers that contribute to successful implementations. The present study employs past literature to identify important factors and utilizes a qualitative research approach in validating their potential importance in successful ERP system implementations. Insights from the analysis of two case studies are used to validate

  9. An advanced driver information system concept and its communications considerations

    Microsoft Academic Search

    W. G. Toperzer

    1990-01-01

    In late 1988, at the initiative of the US Federal Highway Administration, a team of experts from government, industry, and academia formulated proposals for four discussion-level concepts within the context of intelligent vehicle highway systems. One of these concepts outlines an advanced driver information system (ADIS) as envisioned for the year 2005. The ADIS core and enhanced function, in-vehicle and

  10. Robust spoken dialogue management for driver information systems

    Microsoft Academic Search

    Xavier Pouteau; Emiel Krahmer; Jan Landsbergen

    1997-01-01

    Considering the limitations of Speech Recognition for the development of user-system dialogues in real applications, robustness is a primary objective. In this paper, we describe the most essential characteristics of the Dialogue Manager of a driver information system that is controlled by voice, mainly showing how its design has been driven by the char- acteristics of voice in such a

  11. Supporting South Asian Taxi Drivers to Exercise through Pedometers (SSTEP) to decrease cardiovascular disease risk.

    PubMed

    Gany, Francesca; Gill, Pavan; Baser, Raymond; Leng, Jennifer

    2014-06-01

    There is considerable evidence demonstrating the positive impact of pedometers and walking programs for increasing physical activity and reducing risk for cardiovascular disease among diverse populations. However, no interventions have been targeted towards South Asian taxi drivers, a population that may be at high risk for developing cardiovascular disease. Supporting South Asian Taxi Drivers to Exercise through Pedometers (SSTEP) was a 12-week pilot study among South Asian taxi drivers to increase their daily step counts. SSTEP assessed the feasibility, acceptability, and potential impact of an exercise intervention employing pedometers, a step diary, written materials, and telephone follow-up to initiate or increase physical activity in this at-risk occupational group. Seventy-four drivers were recruited to participate at sites frequented by South Asian taxi drivers. Participant inclusion criteria were: (1) age 18 or over; (2) birthplace in India, Pakistan, or Bangladesh; (3) fluent in English, Hindi, Urdu, Punjabi, or Bengali; and (4) intention to remain in New York City for the 3-month study period. Comprehensive intake and exit questionnaires were administered to participants in their preferred languages. Intake and exit health screenings, including blood pressure, cholesterol, and glucose were completed. Daily step counts were obtained 4 days after recruitment, and at the 4-, 8-, and 12-week mark via phone calls. To measure the impact of the intervention, step counts, blood pressure, cholesterol, and body mass index were compared at intake and exit. Participants in SSTEP were sedentary at baseline. The SSTEP intervention resulted in a small increase in step counts among participants overall, and in a significant increase (>2,000 steps) among a subset ("Bigsteppers"). Drivers with higher baseline glucose values had significantly greater improvements in their step counts. Focused lifestyle interventions for drivers at high risk for cardiovascular disease may be particularly impactful. PMID:24500026

  12. An innovative nonintrusive driver assistance system for vital signal monitoring.

    PubMed

    Sun, Ye; Yu, Xiong Bill

    2014-11-01

    This paper describes an in-vehicle nonintrusive biopotential measurement system for driver health monitoring and fatigue detection. Previous research has found that the physiological signals including eye features, electrocardiography (ECG), electroencephalography (EEG) and their secondary parameters such as heart rate and HR variability are good indicators of health state as well as driver fatigue. A conventional biopotential measurement system requires the electrodes to be in contact with human body. This not only interferes with the driver operation, but also is not feasible for long-term monitoring purpose. The driver assistance system in this paper can remotely detect the biopotential signals with no physical contact with human skin. With delicate sensor and electronic design, ECG, EEG, and eye blinking can be measured. Experiments were conducted on a high fidelity driving simulator to validate the system performance. The system was found to be able to detect the ECG/EEG signals through cloth or hair with no contact with skin. Eye blinking activities can also be detected at a distance of 10 cm. Digital signal processing algorithms were developed to decimate the signal noise and extract the physiological features. The extracted features from the vital signals were further analyzed to assess the potential criterion for alertness and drowsiness determination. PMID:25375690

  13. Original Article Young driver restrictions: Does the evidence support them?

    Microsoft Academic Search

    Ross Blackman; Tracy Cheffins; Craig Veitch; Teresa O'Connor

    2008-01-01

    Objective: To assess the suitability of Queensland's graduated licensing system in the context of rural and remote Queensland. Design: Age-based comparison of crash data collected by the Rural and Remote Road Safety Study (RRRSS). Setting: Rural and remote North Queensland. Participants: A total of 367 vehicle controllers aged 16 years or over hospitalised at Townsville, Cairns or Mount Isa for

  14. Using Vehicular Communication to Support Older Drivers at Road Intersections

    E-print Network

    Aberg, Johan

    traffic safety and preserve mobility of older people are important. One new promising approach is to use traffic safety systems based on vehicular communication, where vehicles exchange warning messages for technological contributions with respect to improving traffic safety while preserving the mobility of older

  15. An Advanced Driver Information System for North America

    Microsoft Academic Search

    J. H. Rillings; R. J. Betsold

    1990-01-01

    Over the next 20 years, a dvanced driver information systems for North America will evolve through three stages: (1) the information stage, (2) the advisory stage, and (3) the coordination stage. For each stage, this paper describes the goals, vehicle equipment and infrastructure, expected benefits, research and development required, deployment issues, obstacles and constraints. A series of operational field tests

  16. Development and evaluation of the Trafficmaster driver information system

    Microsoft Academic Search

    A. Stevens; D. K. Martell

    1993-01-01

    Trafficmaster is a commercially available congestion warning device operating in Southern England. A detailed assessment of the traffic and safety implications of the Trafficmaster system has been conducted. Techniques used include modeling, analysis of traffic statistics, questionnaires and driver logs, laboratory comprehension experiments, driving simulator studies and field trials. The network implications and network safety impacts were found to be

  17. Urban traffic network models and dynamic driver information systems

    Microsoft Academic Search

    David Watling

    1994-01-01

    The potential for using advanced technology to influence traffic movement and travel behaviour has generated a massive interest throughout the developed world. In?vehicle, dynamic driver information and dynamic route guidance systems have probably attracted the most attention, with many research activities and field trials planned or currently in progress. Network simulation models have a key role to play, both in

  18. EPICS DEVICE\\/DRIVER SUPPORT MODULES FOR NETWORK-BASED INTELLIGENT CONTROLLERS

    Microsoft Academic Search

    J. Odagiri; J. Chiba; K. Furukawa; N. Kamikubota; T. Katoh; H. Nakagawa

    Modern accelerator control systems adopt a wide variety of intelligent controllers to interface front-end computers with active components of the accelerator. Recently, some of the intelligent controllers come equipped with an Ethernet interface, giving an opportunity to use a network as a kind of field busses. However, developing device drivers for the use of such controllers is a complex and

  19. A framework for moose early warning driver assistance systems

    Microsoft Academic Search

    YI YAO; NINA UNKURI

    2006-01-01

    Abstract Encounters between big game, such as the moose, and private cars often result in severe injuries and death. A vehicle-based moose detection early warning system is a technical countermeasure,to increase the traffic safety by alerting the driver in case of danger. Based on available off-the-shelf consumer electronics, a far infrared night vision system was built to serve as a

  20. RF data communications considerations in advanced driver information systems

    Microsoft Academic Search

    Allan M. Kirson

    1991-01-01

    Advanced Driver Information Systems (ADIS)P, a subset of Intelligent Vehicle Highway Systems (IVHS), are considered. Some of the communications technologies that may be considered for IVHS\\/ADIS implementation are described, with an emphasis on wide-area RF data communications. The discussion covers communications between the infrastructure and the vehicle fleet, and not the connections between the roadside equipment and the traffic management

  1. Unmodified Device Driver Reuse and Improved System Dependability via Virtual Machines

    Microsoft Academic Search

    Joshua Levasseur; Volkmar Uhlig; Jan Stoess; Stefan Götz

    2004-01-01

    We propose a method to reuse unmodified device drivers and to improve system dependability using vir- tual machines. We run the unmodified device driver, with its original operating system, in a virtual machine. This approach enables extensive reuse of existing and unmod- ified drivers, independent of the OS or device vendor, significantly reducing the barrier to building new OS en-

  2. TOWARDS THE NEXT GENERATION INTELLIGENT DRIVER INFORMATION SYSTEM (IDIS): THE VOLVO CAR INTERACTION MANAGER CONCEPT

    Microsoft Academic Search

    Robert Broström; Johan Engström; Anders Agnvall; Gustav Markkula

    In 2003, Volvo Cars introduced the IDIS (Intelligent Driver Information System) on the market. IDIS represents the first-generation of a driver-vehicle interaction management system that continuously monitors the demands of the driving situation and schedules certain types of messages, such as incoming phone calls and text messages, in order to reduce the potential for driver information overload. The present paper

  3. On the Impact of Human Driver Behavior on Intelligent Transportation Systems

    E-print Network

    Breu, Ruth

    for integrated driver models into the development process of Traffic Information System (TIS) solutions. Based information. It is usually assumed that the driver exactly follows the suggestions provided by the TIS. BasedOn the Impact of Human Driver Behavior on Intelligent Transportation Systems Falko Dressler

  4. Developing Character Input Methods for Driver Information Systems

    Microsoft Academic Search

    Youngseok Cho; Sung Ho Han; Sang W. Hong; Yong S. Park; Wonkyu Park; Sunghyun Kang

    2007-01-01

    This study proposes a framework for developing an input method to enter characters into a driver information system (DIS).\\u000a The framework consists of two phases. The first phase is a conceptual design phase that helps to create and design conceptual\\u000a input methods and to conduct formative evaluation. The second phase is a detail design phase that helps to design detailed

  5. Intelligent Physiological Monitoring and Feedback System for Driver Safety

    Microsoft Academic Search

    Yuan-Hsiang Lin; Chih-Fong Lin; Chong-Rong Wu; Yuan-Chang Hsu; He-Zhong You

    2011-01-01

    In the course of driving, sudden disease outbreak often cause serious traffic accidents. If drivers can real-time understand their physiological state, and then they could have a chance to get the best solution at the first time. Maybe accidents will be largely reduced. Therefore, we developed a wearable real-time physiological monitoring and feedback system that consists of a small-size measuring

  6. Long-term effect of the North Carolina graduated driver licensing system on licensed driver crash incidence: A 5-year survival analysis

    Microsoft Academic Search

    Scott V. Masten; Robert D. Foss

    2010-01-01

    Several studies document the success of graduated driver licensing (GDL) systems in reducing young teen crash rates, but it is not yet clear whether any portion of the crash reduction is achieved by producing more capable drivers. The purpose of this study was to determine whether young teen drivers licensed under the North Carolina GDL system remain crash-free longer than

  7. Decision Support Systems

    Microsoft Academic Search

    Simon French

    \\u000a ‘Decision support systems (DSS)’ is a well-used term but one that is often used glibly without care for the type of the decision\\u000a supported and the level of support the system offers. We begin by discussing a classification of DSS according to these two\\u000a dimensions, i.e., decision type and the level of support. For the former, we use the Cynefin

  8. Supporting driver headway choice: the effects of discrete headway feedback when following headway instructions.

    PubMed

    Risto, Malte; Martens, Marieke H

    2014-07-01

    With specific headway instructions drivers are not able to attain the exact headways as instructed. In this study, the effects of discrete headway feedback (and the direction of headway adjustment) on headway accuracy for drivers carrying out time headway instructions were assessed experimentally. Two groups of each 10 participants (one receiving headway feedback; one control) carried out headway instructions in a driving simulator; increasing and decreasing their headway to a target headway of 2 s at speeds of 50, 80, and 100 km/h. The difference between the instructed and chosen headway was a measure for headway accuracy. The feedback group heard a sound signal at the moment that they crossed the distance of the instructed headway. Unsupported participants showed no significant difference in headway accuracy when increasing or decreasing headways. Discrete headway feedback had varying effects on headway choice accuracy. When participants decreased their headway, feedback led to higher accuracy. When increasing their headway, feedback led to a lower accuracy, compared to no headway feedback. Support did not affect driver's performance in maintaining the chosen headway. The present results suggest that (a) in its current form discrete headway feedback is not sufficient to improve the overall accuracy of chosen headways when carrying out headway instructions; (b) the effect of discrete headway feedback depends on the direction of headway adjustment. PMID:24650618

  9. A study on efficiency of the driver information system in the Tokyo Metropolitan area

    Microsoft Academic Search

    E. Hato; M. Taniguchi

    1994-01-01

    A driver information system implemented in Japan provides drivers with dynamic traffic information such as travel time and congested car-length on a variable-message board. This paper gives the results of a driving survey on the Metropolitan Expressway and alternative surface roads, to analyze driver responses when receiving dynamic traffic information. Based on these results, the authors examined the efficiency of

  10. PWM Current Driver Design and Implement for Electric Magnet of Magnetic Suspension System

    Microsoft Academic Search

    Yi-Hua Fana; Kuan-Yu Chen; Cheng-Ju Wu; Po-Chaoo Lee

    2007-01-01

    This research used the pulse width modulation technique to design a switched current driver design for the electric magnets of magnetic suspension system. Dye to the phenomenon of the MOSFET, the driver can operate in the great voltage and under the bigger electric currents than the traditional push-pull linear driver. Furthermore, the relationship of the force slew rate and the

  11. Reactor vessel support system

    DOEpatents

    Golden, Martin P. (Trafford, PA); Holley, John C. (McKeesport, PA)

    1982-01-01

    A reactor vessel support system includes a support ring at the reactor top supported through a box ring on a ledge of the reactor containment. The box ring includes an annular space in the center of its cross-section to reduce heat flow and is keyed to the support ledge to transmit seismic forces from the reactor vessel to the containment structure. A coolant channel is provided at the outside circumference of the support ring to supply coolant gas through the keyways to channels between the reactor vessel and support ledge into the containment space.

  12. Vessel structural support system

    DOEpatents

    Jenko, James X. (N. Versailles, PA); Ott, Howard L. (Kiski Twp., Allegheny County, PA); Wilson, Robert M. (Plum Boro, PA); Wepfer, Robert M. (Murrysville, PA)

    1992-01-01

    Vessel structural support system for laterally and vertically supporting a vessel, such as a nuclear steam generator having an exterior bottom surface and a side surface thereon. The system includes a bracket connected to the bottom surface. A support column is pivotally connected to the bracket for vertically supporting the steam generator. The system also includes a base pad assembly connected pivotally to the support column for supporting the support column and the steam generator. The base pad assembly, which is capable of being brought to a level position by turning leveling nuts, is anchored to a floor. The system further includes a male key member attached to the side surface of the steam generator and a female stop member attached to an adjacent wall. The male key member and the female stop member coact to laterally support the steam generator. Moreover, the system includes a snubber assembly connected to the side surface of the steam generator and also attached to the adjacent wall for dampening lateral movement of the steam generator. In addition, the system includes a restraining member of "flat" attached to the side surface of the steam generator and a bumper attached to the adjacent wall. The flat and the bumper coact to further laterally support the steam generator.

  13. Permanent circulatory support systems at the Pennsylvania State University

    Microsoft Academic Search

    W. J. Weiss; G. Rosenberg; A. J. Snyder; T. J. Cleary; R. P. Gaumond; D. B. Geselowitz; W. S. Pierce

    1990-01-01

    Two systems which provide long-term circulatory support are described: the left ventricular assist system and the total artificial heart. These systems are based on the design of a pusher plate actuated blood pump, driven by a small brushless DC electric motor and rollerscrew driver. An implantable motor controller maintains suitable physiologic flow rates for both systems and controls left-right balance

  14. Cryogenic support system

    DOEpatents

    Nicol, Thomas H. (Aurora, IL); Niemann, Ralph C. (Downers Grove, IL); Gonczy, John D. (Oak Lawn, IL)

    1988-01-01

    A support system is disclosed for restraining large masses at very low or cryogenic temperatures. The support system employs a tie bar that is pivotally connected at opposite ends to an anchoring support member and a sliding support member. The tie bar extends substantially parallel to the longitudinal axis of the cold mass assembly, and comprises a rod that lengthens when cooled and a pair of end attachments that contract when cooled. The rod and end attachments are sized so that when the tie bar is cooled to cryogenic temperature, the net change in tie bar length is approximately zero. Longitudinal force directed against the cold mass assembly is distributed by the tie bar between the anchoring support member and the sliding support member.

  15. Cryogenic support system

    DOEpatents

    Nicol, T.H.; Niemann, R.C.; Gonczy, J.D.

    1988-11-01

    A support system is disclosed for restraining large masses at very low or cryogenic temperatures. The support system employs a tie bar that is pivotally connected at opposite ends to an anchoring support member and a sliding support member. The tie bar extends substantially parallel to the longitudinal axis of the cold mass assembly, and comprises a rod that lengthens when cooled and a pair of end attachments that contract when cooled. The rod and end attachments are sized so that when the tie bar is cooled to cryogenic temperature, the net change in tie bar length is approximately zero. Longitudinal force directed against the cold mass assembly is distributed by the tie bar between the anchoring support member and the sliding support member. 7 figs.

  16. Tragedy on grade crossing: driver failure or systemic fragility?

    PubMed

    Lopes, Manoela Gomes Reis; de Gouveia Vilela, Rodolfo Andrade; de Almeida, Ildeberto Muniz; Mioto, Odilamar Lopes; Takahashi, Mara Alice Batista Conti; Perin, Fernanda Oliveira

    2012-01-01

    In 2010, an accident occurred in Americana-SP, Brazil, involving two trains and one bus on a Grade Crossing, when 10 people died and 17 were injured including workers. This paper aims to analyze the accident using the Model of Analysis and Prevention of Work Accidents (MAPA). The method provides observation of work, interviews and analysis of documents to understand precedents of the event in the following stages: to understand the usual work from the involved people, the changes occurred in the system, the operation of barriers, managerial and organizational aspects. By the end, measures are suggested to avoid new occurrences. The accident took place at night in a site with insufficient lighting. The working conditions of bus drivers, train operators and watchmen are inadequate. There were only symbolic barriers (visual and acoustic signals) triggered manually by watchman upon train operator radio communication. The fragility of the barrier system associated to poor lighting and short time to trigger the signaling seem to play a critical role in the event. Contrary to the official report which resulted in guilt of the bus driver, the conclusion of the paper emphasizes the fragility of the safety system and the need of level crossing reproject. PMID:22317197

  17. Design and Optimization of PCI Ethernet Adapter Driver Program in Embedded System

    Microsoft Academic Search

    SONG Youquan; GAO Xiaopeng; LONG Xiang

    2007-01-01

    (Abstract)This paper introduces the embedded VPN gateway ESG-1 and discusses the design outlines of device driver program for the PCI Ethernet adapter based on RTEMS. This paper adopts the service threads to dispose the network interrupt, uses the producer and consumer model to implement the buffer management and supports the multitude Ethernet adapters managed by one device driver program through

  18. Biological Life Support Systems

    NASA Technical Reports Server (NTRS)

    1997-01-01

    Session MP2 includes short reports on: (1) Crew Regenerative Life Support in Long Duration Space Missions; (2) Bioconversion Systems for Food and Water on Long Term Space Missions; (3) Novel Laboratory Approaches to Multi-purpose Aquatic Biogenerative Closed-Loop Food Production Systems; and (4) Artificial Neural Network Derived Plant Growth Models.

  19. Steam generator support system

    DOEpatents

    Moldenhauer, James E. (Simi Valley, CA)

    1987-01-01

    A support system for connection to an outer surface of a J-shaped steam generator for use with a nuclear reactor or other liquid metal cooled power source. The J-shaped steam generator is mounted with the bent portion at the bottom. An arrangement of elongated rod members provides both horizontal and vertical support for the steam generator. The rod members are interconnected to the steam generator assembly and a support structure in a manner which provides for thermal distortion of the steam generator without the transfer of bending moments to the support structure and in a like manner substantially minimizes forces being transferred between the support structure and the steam generator as a result of seismic disturbances.

  20. 49 CFR 571.203 - Standard No. 203; Impact protection for the driver from the steering control system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...for the driver from the steering control system. 571.203 Section 571...for the driver from the steering control system. S1. Purpose and scope...specifies requirements for steering control systems that will minimize chest,...

  1. 49 CFR 571.203 - Standard No. 203; Impact protection for the driver from the steering control system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...for the driver from the steering control system. 571.203 Section 571...for the driver from the steering control system. S1. Purpose and scope...specifies requirements for steering control systems that will minimize chest,...

  2. 49 CFR 571.203 - Standard No. 203; Impact protection for the driver from the steering control system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...for the driver from the steering control system. 571.203 Section 571...for the driver from the steering control system. S1. Purpose and scope...specifies requirements for steering control systems that will minimize chest,...

  3. Life Support Systems for Lunar Landers

    NASA Technical Reports Server (NTRS)

    Anderson, Molly

    2008-01-01

    Engineers designing life support systems for NASA s next Lunar Landers face unique challenges. As with any vehicle that enables human spaceflight, the needs of the crew drive most of the lander requirements. The lander is also a key element of the architecture NASA will implement in the Constellation program. Many requirements, constraints, or optimization goals will be driven by interfaces with other projects, like the Crew Exploration Vehicle, the Lunar Surface Systems, and the Extravehicular Activity project. Other challenges in the life support system will be driven by the unique location of the vehicle in the environments encountered throughout the mission. This paper examines several topics that may be major design drivers for the lunar lander life support system. There are several functional requirements for the lander that may be different from previous vehicles or programs and recent experience. Some of the requirements or design drivers will change depending on the overall Lander configuration. While the configuration for a lander design is not fixed, designers can examine how these issues would impact their design and be prepared for the quick design iterations required to optimize a spacecraft.

  4. Driver adaptive and context aware active safety systems using CAN-bus signals

    Microsoft Academic Search

    Amardeep Sathyanarayana; Pinar Boyraz; Z. Purohit; R. Lubag; J. H. L. Hansen

    2010-01-01

    Increasing stress levels in drivers, along with their ability to multi task with infotainment systems cause the drivers to deviate their attention from the primary task of driving. With the rapid advancements in technology, along with the development of infotainment systems, much emphasis is being given to occupant safety. Modern vehicles are equipped with many sensors and ECUs (Embedded Control

  5. Performance Driver Information Systems, Enhancing the Fun-to-Drive Equation

    Microsoft Academic Search

    Stephen J. Buckley; Joseph Pasek; Ari Y. Benbasat

    2002-01-01

    Most driver information systems offered in automobiles today display vehicle speed, fluid levels, fluid temperatures, and some basic diagnostic information (warnings, panel lamps). Optional driver information systems add to this list by offering fuel economy information, compass heading, outside temperature and other comfort and convenience related items. Very few provide information in regards to the real performance of the vehicle,

  6. Advanced Life Support Systems

    NASA Technical Reports Server (NTRS)

    Barta, Daniel J.

    2004-01-01

    This presentation is planned to be a 10-15 minute "catalytic" focused presentation to be scheduled during one of the working sessions at the TIM. This presentation will focus on Advanced Life Support technologies key to future human Space Exploration as outlined in the Vision, and will include basic requirements, assessment of the state-of-the-art and gaps, and include specific technology metrics. The presentation will be technical in character, lean heavily on data in published ALS documents (such as the Baseline Values and Assumptions Document) but not provide specific technical details or build to information on any technology mentioned (thus the presentation will be benign from an export control and a new technology perspective). The topics presented will be focused on the following elements of Advanced Life Support: air revitalization, water recovery, waste management, thermal control, habitation systems, food systems and bioregenerative life support.

  7. Imperfect in-vehicle collision avoidance warning systems can aid drivers.

    PubMed

    Maltz, Masha; Shinar, David

    2004-01-01

    An experiment was conducted to determine the effects of an in-vehicle collision avoidance warning system (IVCAWS) on driver performance. A driving simulator was driven by 135 licensed drivers. Of these, 120 received alerts from the IVCAWS when their headway to a lead car was less than 2 s, and the other 15 (the control group) received no alerts. Drivers received varied alert interfaces: auditory, visual, and multimodal. The system had varied levels of reliability, determined by both false alarm rate and failure of the IVCAWS to alert to short headway. Results indicated that the IVCAWS led to safer (longer) headway maintenance. High false alarm rates induced drivers to slow down unnecessarily; large numbers of missed alerts did not have any significant impact on drivers. Driver acceptance of the system was mixed. Interface played a role in driver reliance on the system, with the multimodal interfaces generating least reliance. Actual or potential applications of this research include IVCAWS interface selection for greater system efficacy and user acceptance and the advisability of implementation, even of imperfect systems, for drivers who seek to maintain a safer headway. PMID:15359683

  8. Drivers Impacting the Adoption of Sustainable Agricultural Management Practices and Production Systems of the Northeast and Southeast U.S

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Agricultural production responds to economic, social, environmental, and technological drivers operating both internal and external to the production system. These drivers influence producers’ decision making processes, and act to shape the individual production systems through modification of produ...

  9. Traffic Sign Recognition Using Neural Network on OpenCV: Toward Intelligent Vehicle\\/Driver Assistance System

    Microsoft Academic Search

    Auranuch Lorsakul; Jackrit Suthakorn

    Traffic Sign Recognition (TSR) is used to regulate traffic signs, warn a driver, and command or prohibit certain actions. Fast real-time and robust automatic traffic sign detection and recognition can support and disburden the driver and significantly increase driving safety and comfort. Automatic recognition of traffic signs is also important for an automated intelligent driving vehicle or for driver assistance

  10. Attitudes of Teenagers and Their Parents to Pennsylvania's Graduated Driver Licensing System

    Microsoft Academic Search

    Mary Pat Mckay; Jeffrey H. Coben; Gregory Luke Larkin; Alison Shaffer

    2008-01-01

    Objectives. To determine the attitudes of teens and parents in Pennsylvania (PA) towards the enhanced graduated driver licensing (GDL) system implemented in 2000, and to assess their understanding of teen crash risk.Methods. Cross-sectional survey of teen drivers and their parents. Eligible teens were 16 or 17 years old when they obtained their first learner's permits in 2000. A simple random

  11. Toward next generation of driver assistance systems: A multimodal sensor-based platform

    Microsoft Academic Search

    Mahdi Rezaei; Mohammadreza Sarshar; M. Mehdi Sanaatiyan

    2010-01-01

    Achieving secure vehicles equipped with accident prevention systems is one of the greatest passions of researchers in automotive laboratories. This article provides a detail description on the state of the art techniques for road situation monitoring and driver's behavior analysis (human factors). The focus would be to gain a practical multifaceted approach in order to simultaneous analysis of driver's distraction,

  12. Alarm timing, trust and driver expectation for forward collision warning systems.

    PubMed

    Abe, Genya; Richardson, John

    2006-09-01

    In order to improve road safety, automobile manufacturers are now developing Forward Collision Warning Systems (FCWS). However, there has been insufficient consideration of how drivers may respond to FCWS. This driving simulator study focused on alarm timing and its impact on driver response to alarm. The experimental investigation considered driver perception of alarm timings and its influence on trust at three driving speeds (40, 60 and 70 mile/h) and two time headways (1.7 and 2.2 s). The results showed that alarm effectiveness varied in response to driving conditions. Alarm promptness had a greater influence on ratings of trust than improvements in braking performance enabled by the alarm system. Moreover, alarms which were presented after braking actions had been initiated were viewed as late alarms. It is concluded that drivers typically expect alarms to be presented before they initiate braking actions and when this does not happen driver trust in the system is substantially decreased. PMID:16364231

  13. VEHIL: A TEST FACILITY FOR VALIDATION OF FAULT MANAGEMENT SYSTEMS FOR ADVANCED DRIVER ASSISTANCE SYSTEMS

    Microsoft Academic Search

    M. Verhaegen

    We present a methodological approach for the validation of fault management systems for Advanced Driver Assistance Systems (ADAS). For the validation process the unique VEHIL facility, developed by TNO Automotive and currently situated in Helmond, The Netherlands, is applied. The VEHIL facility provides the opportunity to make the entire development process of intelligent vehicles safer, cheaper, and more manageable, and

  14. Abstract--There are two types of drivers in production machine systems: constant velocity (CV) motor and servo-motor.

    E-print Network

    Zhang, WJ "Chris"

    ) motor and servo-motor. If a system contains two drivers or more, among which some are of the CV motor while the other are the servo-motor, the system has the so-called hybrid driver architecture and servo-motor. If a system contains two or more drivers, among which some are of the CV motor while

  15. Fast overcurrent protection system in the cw laser diode driver

    NASA Astrophysics Data System (ADS)

    Odon, Andrzej; Stryla, Zdzislaw

    2000-10-01

    This paper presents an electronic circuit which can be used as a very fast electronic 'fuse' in laser diode drivers. The main causes of damage of laser diodes are either unexpected electrical transients or catastrophic facet damage occurring at optical power density exceeding 106 W/cm2. Both can be induced by electromagnetic interference in typical drivers with automatic power control. Presented scheme has a reaction time about 2 microsecond(s) , which reduces the possibility of over driving the laser diode.

  16. Effectiveness and driver acceptance of a semi-autonomous forward obstacle collision avoidance system.

    PubMed

    Itoh, Makoto; Horikome, Tatsuya; Inagaki, Toshiyuki

    2013-09-01

    This paper proposes a semi-autonomous collision avoidance system for the prevention of collisions between vehicles and pedestrians and objects on a road. The system is designed to be compatible with the human-centered automation principle, i.e., the decision to perform a maneuver to avoid a collision is made by the driver. However, the system is partly autonomous in that it turns the steering wheel independently when the driver only applies the brake, indicating his or her intent to avoid the obstacle. With a medium-fidelity driving simulator, we conducted an experiment to investigate the effectiveness of this system for improving safety in emergency situations, as well as its acceptance by drivers. The results indicate that the system effectively improves safety in emergency situations, and the semi-autonomous characteristic of the system was found to be acceptable to drivers. PMID:23453775

  17. Abstract--Advanced driver assistance systems are designed to make driving easier that is, to alleviate the driver's workload,

    E-print Network

    Kovordányi, Rita

    , to alleviate the driver's workload, and to increase traffic safety. However, traffic safety is affected for traffic safety. Empirical studies indicate that drivers have a tendency to adapt their driving style

  18. Towards Cultural Adaptability to Broaden Universal Access in Future Interfaces of Driver Information Systems

    Microsoft Academic Search

    Rüdiger Heimgärtner; Lutz-wolfgang Tiede; Jürgen Leimbach; Steffen Zehner; Nhu Nguyen-thien; Helmut Windl

    2007-01-01

    This paper elucidates and discusses some aspects of cultural adaptability which aid usability and universal access. We describe\\u000a the concept, influence and Use Cases of cultural adaptability in driver information and assistance systems exemplified by\\u000a a portable navigation system. Thereby, the reasons, advantages and problems of using adaptability regarding the driving safety\\u000a and the driver preferences will be addressed. Differences

  19. What functions and features should be in driver information systems of the year 2000

    Microsoft Academic Search

    Paul Green; Collen Serafin; Marie Williams; Gretchen Paelke

    1991-01-01

    This paper describes new driver-information systems that are suggested for cars of the 21st century and proposes a method for selecting them. This method will help government officials, product planners, engineers, designers, and scientists identify functions and features that will be most beneficial to drivers. The systems (functions) of interest were navigation, vehicle monitoring, traffic information, road-hazard warning, communications, motorist

  20. Child Safety Driver Assistant System and its Acceptance

    Microsoft Academic Search

    Elisabeth Quendler; Christian Diskus; Alfred Pohl; Thomas Buchegger; Ernst Beranek; Josef Boxberger

    2009-01-01

    Farming machinery incidents frequently cause the injury and death of children on farms worldwide. The two main causes of this problem are the driver's view being restricted by construction and\\/or environmental factors and insufficient risk awareness by children and parents. It is difficult to separate working and living areas on family farms, and the adult supervision necessary to avoid work

  1. Key performance indicators: Primary drivers of information systems design

    Microsoft Academic Search

    Larry Barkley

    2001-01-01

    As the demand for enterprise-wide performance measurement of corporate real estate portfolios and service providers ever increases, the number of tools available to executives which claim to facilitate this has also grown. Starting by developing an understanding of key business drivers, this paper reviews the latest developments in performance metrics including key performance indicators, service level agreements, and how the

  2. A One-driver-multi-card High-accuracy Signal Acquisition System Based on PCI Bus

    Microsoft Academic Search

    Wang Lipeng; Wang Junzheng; Shen Wei

    2011-01-01

    This paper aims at increasing the accuracy of the signal acquisition system and decreasing the non-linear error of the A\\/D conversion. A multi-channel high-accuracy signal acquisition card based on PCI bus is designed and a Windows Driver Model (WDM) driver for multiple cards with same configuration is described. The local bus of the card is controlled by the temporal logic

  3. A Smartphone-Based Driver Safety Monitoring System Using Data Fusion

    PubMed Central

    Lee, Boon-Giin; Chung, Wan-Young

    2012-01-01

    This paper proposes a method for monitoring driver safety levels using a data fusion approach based on several discrete data types: eye features, bio-signal variation, in-vehicle temperature, and vehicle speed. The driver safety monitoring system was developed in practice in the form of an application for an Android-based smartphone device, where measuring safety-related data requires no extra monetary expenditure or equipment. Moreover, the system provides high resolution and flexibility. The safety monitoring process involves the fusion of attributes gathered from different sensors, including video, electrocardiography, photoplethysmography, temperature, and a three-axis accelerometer, that are assigned as input variables to an inference analysis framework. A Fuzzy Bayesian framework is designed to indicate the driver’s capability level and is updated continuously in real-time. The sensory data are transmitted via Bluetooth communication to the smartphone device. A fake incoming call warning service alerts the driver if his or her safety level is suspiciously compromised. Realistic testing of the system demonstrates the practical benefits of multiple features and their fusion in providing a more authentic and effective driver safety monitoring. PMID:23247416

  4. The 15Second Rule for Driver Information Systems

    Microsoft Academic Search

    Paul Green

    1999-01-01

    The 15-Second Rule specifies the recommended maximum time for drivers to complete navigation-related tasks involving visual displays and manual controls in a moving vehicle. Compliance is determined by calculating task time assuming the vehicle is parked, a simplifying assumption. Task time is (1) correlated with crash risk, (2) much easier to measure than alternatives such as total eyes-off-the-road time, and

  5. [Tongue diagnosis support system].

    PubMed

    Ikeda, Naoya; Uozumi, Takashi

    2005-05-01

    Tongue diagnosis is one of the most important diagnostic methods in Oriental Medical Science (OMS). This diagnosis is painless and non-invasive method. However, it is not easy to cultivate skillful doctors. As one of the reasons, definition of tongue color is rather subjective and sensuous measure and color isn't related to quantitative physical value. It is, therefore, necessary to associate tongue color with physical numerical value. There are two problems to overcome the issue. 1) It is necessary for diagnosis to extract a region for diagnosis from entire picture because a tongue picture consists of two regions, a tongue and a background. 2) Associate tongue color with physical numerical value. For extracting tongue region, we used Progressive LiveWire method that is an Active Contour Model. And, for associating tongue color with physical measurement, we propose a hierarchical method. We use static rule and support vector machine for clustering colors. The performance of developed system is improved compared with an early developed one. In addition, the developed system did not make a critical incorrect discernment that causes incorrect choice about inspection in the layer of rule base. In this research average color appraisal is done from the region of 37 points. But, color judgment in the literature with the judgment by the eye of the human, has always done average judgment with not to limit, there is also a possibility some weight attaching being done. Therefore, from either one enabling the mass data and the comparison with the group of specialists is necessary as an appraisal. PMID:15960161

  6. Technological Support for Logistics Transportation Systems

    NASA Astrophysics Data System (ADS)

    Bujak, Andrzej; ?liwa, Zdzis?aw; G?bczy?ska, Alicja

    The modern world is changing introducing robots, remotely controlled vehicles and other crewless means of transportation to reduce people's mistakes, as the main cause of incidents and crashes during traffic. New technologies are supporting operators and drivers, and according to some studies they can even replace them. Such programs as: AHS, UAH, IVBSS or MTVR are under development to improve traffic flow and its safety, to reduce traffic hazards and crashes. It is necessary to analyze such concepts and implement them boldly, including Polish logistics' companies, new programs, highways' system etc., as they will be applied in the future, so it is necessary to prepare logistics infrastructure ahead of time in order to capitalize on these improvements. The problem is quite urgent as transportation in the country must not be outdated to meet clients' expectations and to keep pace with competing foreign companies.

  7. Game Theoretic Modelling of a Human Driver’s Steering Interaction with Vehicle Active Steering Collision Avoidance System

    E-print Network

    Na, Xiaoxiang; Cole, David J.

    2014-11-10

    ;' , )(1 jkinty #14;' and )(1 jk #14;'\\ are respectively the lateral displacement error, lateral displacement error integral and yaw angle error from the driver’s view, that is, )()()( 111 jkrjkzjk yyy #14;#16;#14; #14... ;' (3a) )()()( 111 jkrjkzjk intintint yyy #14;#16;#14; #14;' (3b) )()()( 111 jkrjkzjk #14;#16;#14; #14;' \\\\\\ (3c...

  8. Minimizing Driver Interference Under a Probablistic Safety Constraint in Emergency Collision Avoidance Systems

    E-print Network

    Hauser, Kris

    or risk-seeking behavior behind the wheel [4]. Worse, automated collision avoidance systems that brake Avoidance Systems Jeff Johnson Yajia Zhang Kris Hauser School of Informatics and Computing, Indiana systems can avoid or reduce the severity of collisions by taking control of a vehicle away from the driver

  9. Reactor vessel support system. [LMFBR

    DOEpatents

    Golden, M.P.; Holley, J.C.

    1980-05-09

    A reactor vessel support system includes a support ring at the reactor top supported through a box ring on a ledge of the reactor containment. The box ring includes an annular space in the center of its cross-section to reduce heat flow and is keyed to the support ledge to transmit seismic forces from the reactor vessel to the containment structure. A coolant channel is provided at the outside circumference of the support ring to supply coolant gas through the keyways to channels between the reactor vessel and support ledge into the containment space.

  10. A smartphone-based driver safety monitoring system using data fusion.

    PubMed

    Lee, Boon-Giin; Chung, Wan-Young

    2012-01-01

    This paper proposes a method for monitoring driver safety levels using a data fusion approach based on several discrete data types: eye features, bio-signal variation, in-vehicle temperature, and vehicle speed. The driver safety monitoring system was developed in practice in the form of an application for an Android-based smartphone device, where measuring safety-related data requires no extra monetary expenditure or equipment. Moreover, the system provides high resolution and flexibility. The safety monitoring process involves the fusion of attributes gathered from different sensors, including video, electrocardiography, photoplethysmography, temperature, and a three-axis accelerometer, that are assigned as input variables to an inference analysis framework. A Fuzzy Bayesian framework is designed to indicate the driver's capability level and is updated continuously in real-time. The sensory data are transmitted via Bluetooth communication to the smartphone device. A fake incoming call warning service alerts the driver if his or her safety level is suspiciously compromised. Realistic testing of the system demonstrates the practical benefits of multiple features and their fusion in providing a more authentic and effective driver safety monitoring. PMID:23247416

  11. Extended mission life support systems

    NASA Technical Reports Server (NTRS)

    Quattrone, P. D.

    1984-01-01

    The life support systems employed in manned space missions have generally been based on the use of expendables, such as, for instance, liquid oxygen. For the conducted space missions, such systems have advantages related to volume, weight, and economy of power consumption. However, this situation will change in connection with Shuttle Orbiter missions of extended duration, permanent manned facilities in low-earth orbit, and ultimately manned planetary vehicles. A description is given of suitable regenerative life support systems for such extended manned space missions. Attention is given to advanced life support systems technology, air revitalization, CO2 reduction, oxygen generation, nitrogen generation, trace contaminant control, air revitalization system integration, control/monitor instrumentation, water reclamation, solid waste management, manned testing and life support integration, an enhanced duration orbiter, a space operations center, manned interplanetary life support systems, and future development requirements.

  12. Stability Criteria and Objective Evaluation of a Driver-Vehicle System for Driving in Lane Change and against Crosswind

    Microsoft Academic Search

    Hiroshi HARADA; Takashi IWASAKI

    1994-01-01

    Stability criteria of driver-vehicle system is derived analytically in typical cases of lane change and straight running against crosswind, assuming that vehicle dynamics are provided as a closed loop system and driver's steering is controlled under a linear preview strategy. On the u(velocity)-Tp(preview time) plane, vehicle design parameters and driver's characteristics can be discussed quantitatively in terms of the effects

  13. Variation of Sediment Concentration and Its Drivers Under Different Soil Management Systems

    Microsoft Academic Search

    Wen-Tai ZHANG; Dong-Sheng YU; Xue-Zheng SHI; Man-Zhi TAN; Liu-Song LIU

    2010-01-01

    In order to prevent soil erosion in southern China, a study was performed to determine the drivers of sediment concentration variation using simulated rainfall and four soil management systems under field condition. Four soil management systems, i.e., forest and grass coverage (FG), forest coverage with disturbed soil surface (FD), contour tillage (CT) and downslope tillage (DT), were exposed to two

  14. The Driver Information System of the Volkswagen Research Car Auto 2000

    Microsoft Academic Search

    Peter Andreas; Walter Zimdahl

    1983-01-01

    From 1978 to 1981, the Research Department of Volkswagen constructed and tested the Research Car Auto 2000 sponsored by the Federal Ministry of Research and Technology. This car is equipped with a fully electronic driver information system (DIS). The system consists of some microcomputers, a liquid crystal display, centralized controls and data input for various functions, and a synthesized voice

  15. Interactive Clothes Design Support System

    Microsoft Academic Search

    Yuki Ogata; Takehisa Onisawa

    2007-01-01

    This paper proposes a clothes design support system. Interactive Genetic Algorithms are applied to the support system in order\\u000a to reflect users’s Kansei to clothes design. The system presents several designed clothes candidates to a user and a user\\u000a evaluates them. According to user’s evaluation, the system gives genetic algorithms (GA) operations, selection, crossover\\u000a and mutations, to clothes candidates. Repeating

  16. Development of a read out driver for ATLAS micromegas based on the Scalable Readout System

    NASA Astrophysics Data System (ADS)

    Zibell, A.

    2014-01-01

    With future LHC luminosity upgrades, part of the ATLAS muon spectrometer has to be changed, to cope with the increased flux of uncorrelated neutron and gamma particles. Micromegas detectors were chosen as precision tracker for the New Small Wheels, that will replace the current Small Wheel muon detector stations during the LHC shutdown foreseen for 2018. To read out these detectors together with all other ATLAS subsystems, a readout driver was developed to integrate these micromegas detectors into the ATLAS data acquisition infrastructure. The readout driver is based on the Scalable Readout System, and its tasks include trigger handling, slow control, event building and data transmission to the high-level readout systems. This article describes the layout and functionalities of this readout driver and its components, as well as a test of its functionalities in the cosmic ray facility of Ludwig-Maximilians University Munich.

  17. System Support for Online Reconfiguration

    Microsoft Academic Search

    Craig A. N. Soules; Jonathan Appavoo; Kevin Hui; Robert W. Wisniewski; Dilma Da Silva; Gregory R. Ganger; Orran Krieger; Michael Stumm; Marc A. Auslander; Michal Ostrowski; Bryan S. Rosenburg; Jimi Xenidis

    2003-01-01

    Online reconfiguration provides a way to extend and re- place active operating system components. This pro- vides administrators, developers, applications, and the system itself with a way to update code, adapt to chang- ing workloads, pinpoint performance problems, and per- form a variety of other tasks while the system is running. With generic support for interposition and hot-swapping, a system

  18. Life Support Systems Microbial Challenges

    NASA Technical Reports Server (NTRS)

    Roman, Monserrate C.

    2009-01-01

    This viewgraph presentation reviews the current microbial challenges of environmental control and life support systems. The contents include: 1) Environmental Control and Life Support Systems (ECLSS) What is it?; 2) A Look Inside the International Space Station (ISS); 3) The Complexity of a Water Recycling System; 4) ISS Microbiology Acceptability Limits; 5) Overview of Current Microbial Challenges; 6) In a Perfect World What we Would like to Have; and 7) The Future.

  19. Supported liquid membrane system

    SciTech Connect

    Takigawa, D.Y.; Bush, H. Jr.

    1990-12-31

    A cell apparatus for a supported liquid membrane including opposing faceplates, each having a spirally configured groove, an inlet groove at a first end of the spirally configured groove, and an outlet groove at the other end of the spirally configured groove, within the opposing faces of the faceplates, a microporous membrane situated between the grooved faces of the faceplates, said microporous membrane containing an extractant mixture selective for a predetermined chemical species within the pores of said membrane, means for aligning the grooves of the faceplates in an directly opposing configuration with the porous membrane being situated therebetween, such that the aligned grooves form a pair of directly opposing channels, separate feed solution and stripping solution compartments connected to respective channels between the faceplates and the membrane, separate pumping means for passing feed solution and stripping solution through the channels is provided.

  20. Detection of driver drowsiness using wavelet analysis of heart rate variability and a support vector machine classifier.

    PubMed

    Li, Gang; Chung, Wan-Young

    2013-01-01

    Driving while fatigued is just as dangerous as drunk driving and may result in car accidents. Heart rate variability (HRV) analysis has been studied recently for the detection of driver drowsiness. However, the detection reliability has been lower than anticipated, because the HRV signals of drivers were always regarded as stationary signals. The wavelet transform method is a method for analyzing non-stationary signals. The aim of this study is to classify alert and drowsy driving events using the wavelet transform of HRV signals over short time periods and to compare the classification performance of this method with the conventional method that uses fast Fourier transform (FFT)-based features. Based on the standard shortest duration for FFT-based short-term HRV evaluation, the wavelet decomposition is performed on 2-min HRV samples, as well as 1-min and 3-min samples for reference purposes. A receiver operation curve (ROC) analysis and a support vector machine (SVM) classifier are used for feature selection and classification, respectively. The ROC analysis results show that the wavelet-based method performs better than the FFT-based method regardless of the duration of the HRV sample that is used. Finally, based on the real-time requirements for driver drowsiness detection, the SVM classifier is trained using eighty FFT and wavelet-based features that are extracted from 1-min HRV signals from four subjects. The averaged leave-one-out (LOO) classification performance using wavelet-based feature is 95% accuracy, 95% sensitivity, and 95% specificity. This is better than the FFT-based results that have 68.8% accuracy, 62.5% sensitivity, and 75% specificity. In addition, the proposed hardware platform is inexpensive and easy-to-use. PMID:24316564

  1. Ergonomically neutral arm support system

    DOEpatents

    Siminovitch, Michael J; Chung, Jeffrey Y; Dellinges, Steven; Lafever, Robin E

    2005-08-02

    An ergonomic arm support system maintains a neutral position for the forearm. A mechanical support structure attached to a chair or other mounting structure supports the arms of a sitting or standing person. The system includes moving elements and tensioning elements to provide a dynamic balancing force against the forearms. The support structure is not fixed or locked in a rigid position, but is an active dynamic system that is maintained in equipoise by the continuous operation of the opposing forces. The support structure includes an armrest connected to a flexible linkage or articulated or pivoting assembly, which includes a tensioning element such as a spring. The pivoting assembly moves up and down, with the tensioning element providing the upward force that balances the downward force of the arm.

  2. Sensitivities of projected 1980 photovoltaic system costs to major system cost drivers

    NASA Astrophysics Data System (ADS)

    Zimmerman, L. W.; Smith, J. L.

    1984-12-01

    The sensitivity of projected 1990 photovoltaic (PV) system costs to major system cost drivers was examined. It includes: (1) module costs and module efficiencies; (2) area related balance of system (BOS) costs; (3) inverter costs and efficiencies; and (4) module marketing and distribution markups and system integration fees. Recent PV system cost experiences and the high costs of electricity from the systems are reviewed. The 1990 system costs are projected for five classes of PV systems, including four ground mounted 5-MWp systems and one residential 5-kWp system. System cost projections are derived by first projecting costs and efficiencies for all subsystems and components. Sensitivity analyses reveal that reductions in module cost and engineering and system integration fees seem to have the greatest potential for contributing to system cost reduction. Although module cost is clearly the prime candidate for fruitful PV research and development activities, engineering and system integration fees seem to be more amenable to reduction through appropriate choice of system size and market strategy. Increases in inverter and module efficiency yield significant benefits, especially for systems with high area related costs.

  3. Sensitivities of projected 1980 photovoltaic system costs to major system cost drivers

    NASA Technical Reports Server (NTRS)

    Zimmerman, L. W.; Smith, J. L.

    1984-01-01

    The sensitivity of projected 1990 photovoltaic (PV) system costs to major system cost drivers was examined. It includes: (1) module costs and module efficiencies; (2) area related balance of system (BOS) costs; (3) inverter costs and efficiencies; and (4) module marketing and distribution markups and system integration fees. Recent PV system cost experiences and the high costs of electricity from the systems are reviewed. The 1990 system costs are projected for five classes of PV systems, including four ground mounted 5-MWp systems and one residential 5-kWp system. System cost projections are derived by first projecting costs and efficiencies for all subsystems and components. Sensitivity analyses reveal that reductions in module cost and engineering and system integration fees seem to have the greatest potential for contributing to system cost reduction. Although module cost is clearly the prime candidate for fruitful PV research and development activities, engineering and system integration fees seem to be more amenable to reduction through appropriate choice of system size and market strategy. Increases in inverter and module efficiency yield significant benefits, especially for systems with high area related costs.

  4. Towards Evolutional Authoring Support Systems

    ERIC Educational Resources Information Center

    Aroyo, Lora; Mizoguchi, Riichiro

    2004-01-01

    The ultimate aim of this research is to specify and implement a general authoring framework for content and knowledge engineering for Intelligent Educational Systems (IES). In this context we attempt to develop an authoring tool supporting this framework that is powerful in its functionality, generic in its support of instructional strategies and…

  5. Thoracic response and injury with belt, driver side airbag, and force limited belt restraint systems

    Microsoft Academic Search

    J. R. Crandall; C. R. Bass; W. D. Pikey; H. J. Miller; J. Sikorski; M. Wilkins

    1996-01-01

    The performance of belt, airbag, and force limited belt restraint systems for the driver were compared using frontal sled tests. Nine human cadaver and six dummy sled tests were conducted at 56 km\\/h using a test buck representing a mid-size vehicle. Subject instrumentation included upper and lower chestbands to measure local thoracic deformations and sternal and spinal accelerometers to record

  6. An advance driver information system concept for North America: a Mobility 2000 report

    Microsoft Academic Search

    E. R. Case

    1989-01-01

    In late 1988 a research working group drawn from government, industry, and academia was established to develop the concept for an advanced driver information system (ADIS) for deployment in North America early in the next century. At the last of three meetings of the ADIS Working Group the concept for a mature, top-of-the-line ADIS for the year 2005 was spelled

  7. Navigation and digital maps interface for fleet management and driver information systems

    Microsoft Academic Search

    Walter B. Zavoli

    1989-01-01

    Companies developing navigation and map technologies are faced with the problem of providing products that can be utilized in the wide range of emerging market applications. The author explores one company's approach in developing products with layered interfaces to meet this challenge. Examples are given of fleet management and driver guidance systems utilizing command layer interfaces. The simplicity of the

  8. Calibration of stereo fish-eye camera for Driver Assistance Systems

    Microsoft Academic Search

    Je Ahn

    2010-01-01

    The calibration of cameras in general is an essential part of setting up DAS (Driver Assistance Systems) as well as a normal maintenance procedure for which accuracy and reliability are vital. In particular, a wide field of view (e.g., by using fish-eye lenses) is of particular interest for DAS, with the additional constraint to ensure a reasonable pixel resolution. The

  9. A 3.3 MJ, Rb{sup +1} Driver Design Based on an Integrated Systems Analysis

    SciTech Connect

    Meier, W.R.; Barnard, J.J.; Bangerter, R.O.

    2000-09-15

    A computer model for systems analysis of heavy ion drivers has been developed and used to evaluate driver designs for inertial fusion energy (IFE). The present work examines a driver for a close-coupled target design that requires less total beam energy but also smaller beam spots sizes than previous target designs. Design parameters and a cost estimate for a 160 beam, 3.3 MJ driver using rubidium ions (A = 85) are reported, and the sensitivity of the results to variations in selected design parameters is given.

  10. Guidelines and some developments for a new modular driver information system

    Microsoft Academic Search

    W. Zimdahl

    1984-01-01

    Several driver information and traffic monitoring systems have been investigated in the past: CACS in Japan and ALI in Germany. Future systems must be designed modular: The finest step is an autonomous navigation system; the second, step includes some fairly cheap infrastructure with steady-state information transmitted to cars; the third step makes this information dynamic, i.e. traffic-dependent. VOLKSWAGEN and SIEMENS

  11. The experience of developing and providing driver route information systems

    Microsoft Academic Search

    John Wootton; Michael Ness

    1989-01-01

    The authors relate their experience in developing several such systems over a period of 10 years. They were concerned first with improving the information given on direction signs; this was followed by the development of systems for providing route information for individual journeys. Subsequently these developed into an autonomous in-vehicle route guidance system, and systems which have allowed automobile clubs

  12. Challenges of crossing scales and drivers in modelling marine systems

    Microsoft Academic Search

    E. A. Fulton; M. Sporcic; R. Scott; M. Hepburn

    2009-01-01

    Ningaloo-Exmouth region is an area of exceptional beauty and productivity that is supporting a diverse range of local activities (e.g. farming, fishing and oil and gas exploration), while also attracting national and international tourists. The proximity of Ningaloo reef to the coastline and the presence of Cape Range National Park in the same area mean that any development or growth

  13. Emergence of multiple ocean ecosystem drivers in a large ensemble suite with an Earth system model

    NASA Astrophysics Data System (ADS)

    Rodgers, K. B.; Lin, J.; Frölicher, T. L.

    2015-06-01

    Marine ecosystems are increasingly stressed by human-induced changes. Marine ecosystem drivers that contribute to stressing ecosystems - including warming, acidification, deoxygenation and perturbations to biological productivity - can co-occur in space and time, but detecting their trends is complicated by the presence of noise associated with natural variability in the climate system. Here we use large initial-condition ensemble simulations with an Earth system model under a historical/RCP8.5 (representative concentration pathway 8.5) scenario over 1950-2100 to consider emergence characteristics for the four individual and combined drivers. Using a 1-standard-deviation (67% confidence) threshold of signal to noise to define emergence with a 30-year trend window, we show that ocean acidification emerges much earlier than other drivers, namely during the 20th century over most of the global ocean. For biological productivity, the anthropogenic signal does not emerge from the noise over most of the global ocean before the end of the 21st century. The early emergence pattern for sea surface temperature in low latitudes is reversed from that of subsurface oxygen inventories, where emergence occurs earlier in the Southern Ocean. For the combined multiple-driver field, 41% of the global ocean exhibits emergence for the 2005-2014 period, and 63% for the 2075-2084 period. The combined multiple-driver field reveals emergence patterns by the end of this century that are relatively high over much of the Southern Ocean, North Pacific, and Atlantic, but relatively low over the tropics and the South Pacific. For the case of two drivers, the tropics including habitats of coral reefs emerges earliest, with this driven by the joint effects of acidification and warming. It is precisely in the regions with pronounced emergence characteristics where marine ecosystems may be expected to be pushed outside of their comfort zone determined by the degree of natural background variability to which they are adapted. The results underscore the importance of sustained multi-decadal observing systems for monitoring multiple ecosystems drivers.

  14. ENHANCED SEAT BELT REMINDER SYSTEMS FOR TEENAGE DRIVERS AND PASSENGERS

    Microsoft Academic Search

    Neil Lerner; Jeremiah Singer; Mark Freedman

    Summary: Failure to use a seat belt is a significant highway safety concern for teenagers. The current Federally-required seat belt reminder system is limited in its effectiveness, and many automobile manufacturers are now providing enhanced seat belt reminder (ESBR) systems. Current systems are designed for the general driving public and their design must represent a trade-off between effectiveness in promoting

  15. Acoustic Levitation With One Driver

    NASA Technical Reports Server (NTRS)

    Wang, T. G.; Rudnick, I.; Elleman, D. D.; Stoneburner, J. D.

    1985-01-01

    Report discusses acoustic levitation in rectangular chamber using one driver mounted at corner. Placement of driver at corner enables it to couple effectively to acoustic modes along all three axes. Use of single driver reduces cost, complexity and weight of levitation system below those of three driver system.

  16. Crashes Induced by Driver Information Systems and What Can Be Done to Reduce Them

    Microsoft Academic Search

    Paul Green

    2000-01-01

    Future in-vehicle information systems may overload drivers, compromising driving safety and product usability. Suggestions of overload appear in (1) statistics from Japan, the United States, and Kuwait for mobile phone-related crashes, (2) statistics from Japan for navigation system-related crashes, and (3) human performance data. From most to least frequent, tasks associated with crashes were receiving a call, dialing, talking (on

  17. Calculations of thrust generation by the driver system of a large blast simulator. Final report Feb-Dec 90

    SciTech Connect

    Schraml, S.J.

    1991-03-01

    A computational study was performed to determine the peak thrust which would be generated by cylindrical shock tube drivers of various lengths. Thrust histories were generated for two different flow conditions, one in which the shock tube was operated normally and the other in which a driver length adjusting device (hydroplug) failed. Once the magnitude and behavior of the thrust histories are understood, steps can be taken to design supports for the driver tubes which will withstand the cyclic loading associated with normal operation as well as the reverse loading associated with the component failure.

  18. OPTO-22 DRIVER. OPTO-22 Driver for LabView

    Microsoft Academic Search

    Johnson

    1991-01-01

    OPTO-22 DRIVER consists of a set of LabVIEW (National Instruments, Austin, TX) virtual instruments (VIs) that handle low-level communications with signal conditioning equipment by Opto-22 (Huntington Beach, CA). The OPTOMUX protocol is support, which requires the use of a serial port and supports multidrop communications. With this package, users can connect hundreds of Opto-22 modules to their LabVIEW system and

  19. Learning Haptic Feedback for Guiding Driver Michael A. Goodrich and Morgan Quigley, mike@cs.byu.edu

    E-print Network

    Goodrich, Michael A.

    to act as admittance controllers. Keywords: Haptic interfaces, automobile driving, driver support systems drivers experience the vibration caused by an antilock brake system, they may choose to keep the pedal the driving state can be conveyed to automobile drivers through force feedback signals sent via the pedals

  20. An econometric analysis of the effects of the penalty points system driver's license in Spain.

    PubMed

    Castillo-Manzano, José I; Castro-Nuńo, Mercedes; Pedregal, Diego J

    2010-07-01

    This article seeks to quantify the effects of the penalty points system driver's license during the 18-month period following its coming into force. This is achieved by means of univariate and multivariate unobserved component models set up in a state space framework estimated using maximum likelihood. A detailed intervention analysis is carried out in order to test for the effects and their duration of the introduction of the penalty points system driver's license in Spain. Other variables, mainly indicators of the level of economic activity in Spain, are also considered. Among the main effects, we can mention an average reduction of almost 12.6% in the number of deaths in highway accidents. It would take at least 2 years for that effect to disappear. For the rest of the safety indicator variables (vehicle occupants injured in highway accidents and vehicle occupants injured in accidents built-up areas) the effects disappeared 1 year after the law coming into force. PMID:20441847

  1. Correctness Proofs for Device Drivers in Embedded Systems Jianjun Duan

    E-print Network

    Regehr, John

    .'s semantics for the ARM in- struction set architecture [14, 23], which models only the ARM core and memory, we created a framework for plugging in models of hardware peripherals typically found on an ARM-based systems-of-concept, we instantiated our ab- stract device model with a UART (serial port) found on a real ARM processor

  2. Dangerous driving condition analysis in driver assistance systems

    Microsoft Academic Search

    C. Y. Fang; C. F. Chiou; C. L. Chen; S. W. Chen

    2009-01-01

    This study presents a new method of analyzing whether a vehicle is in a dangerous driving condition while travelling along a highway. We use data from various sensors installed on the vehicle, which represent the driving attributes associated with a particular driving scenario, as inputs to our system. However, as some of these sensors may be dependent on each other,

  3. Development of a driver information and warning system with vehicle hardware-in-the-loop simulations

    Microsoft Academic Search

    O. J. Gietelink; J. Ploeg; B. De Schutter; M. Verhaegen

    2009-01-01

    This paper presents a new method for the design and validation of advanced driver assistance systems (ADASs). With vehicle hardware-in-the-loop (VeHIL) simulations the development process, and more specifically the validation phase, of intelligent vehicles is carried out safer, cheaper, and more manageable. In the VeHIL laboratory a full-scale ADAS-equipped vehicle is set up in a hardware-in-the-loop simulation environment, where a

  4. Apollo Portable Life Support System

    NASA Technical Reports Server (NTRS)

    1968-01-01

    With its exterior removed, the Apollo portable life support system (PLSS) can be studied. The PLSS is worn as a backpack over the extravehicular mobility unit (EMU), a multi-layered spacesuit used for outside the spacecraft activity. This is a close-up of the working parts of the PLSS.

  5. Apollo Portable Life Support System

    NASA Technical Reports Server (NTRS)

    1968-01-01

    With its exterior removed, the Apollo portable life support system (PLSS) can be studied. The PLSS is worn as a backpack over the extravehicular mobility unit (EMU), a multi-layered spacesuit used for outside the spacecraft activity. This is a wider view of the exposed interior working parts of the PLSS and its removed cover.

  6. Software Metrics Decision Support System

    Microsoft Academic Search

    Jacob W. Ulvila; James O. Chinnis Jr.; John E. Gaffney Jr.

    1998-01-01

    The software metrics decision support system (SMDSS) methodology was developed to address the problem of selecting the “best” set of values for quantifiable software project goals commensurate with various constraints and management's desires. The methodology was prototyped in a proof-of-concept tool, called MAUS, which uses multi-attribute utility theory (MAU). The MAU-based decision-making methodology is designed to aid software and systems

  7. KESS: Knowledge Engineering Support System

    PubMed Central

    Said, Mohamed Ben; Dougherty, Nini; Anderson, Curtis; Altman, Stanley J.; Bouhaddou, Omar; Warner, Homer R.

    1987-01-01

    KESS (Knowledge Engineering Support System) is a relational information management system created at the University of Utah to document each step in the building of four expert knowledge bases. In weekly knowledge engineering sessions, groups of experts propose decision making criteria and examine information sources in the process of creating HELP knowledge frames. KESS utilizes many-to-many links with multiple files and central link files to track the different kinds of information generated and used in the four knowledge building projects.

  8. Objective evaluation of software architectures in driver assistance systems

    Microsoft Academic Search

    Dirk Ahrens; Andreas Frey; Andreas Pfeiffer; Torsten Bertram

    This paper describes methods and the obtained results for objective evaluation of software architectures in the automotive\\u000a embedded domain. Software architecture is the key factor for influencing and fulfilling non-functional requirements that are\\u000a addressed to a software system. Among others scalability, extensibility and portability are to be mentioned as major criteria. Until today however there is no approach that allows

  9. Structural support, not insulation, is the primary driver for avian cup-shaped nest design

    PubMed Central

    Heenan, Caragh B.; Seymour, Roger S.

    2011-01-01

    The nest micro-environment is a widely studied area of avian biology, however, the contribution of nest conductance (the inverse of insulation) to the energetics of the incubating adult and offspring has largely been overlooked. Surface-specific thermal conductance (W °C?1 cm?2) has been related to nest dimensions, wall porosity, height above-ground and altitude, but the most relevant measure is total conductance (G, W °C?1). This study is the first to analyse conductance allometrically with adult body mass (M, g), according to the form G = aMb. We propose three alternative hypotheses to explain the scaling of conductance. The exponent may emerge from: heat loss scaling (M0.48) in which G scales with the same exponent as thermal conductance of the adult bird, isometric scaling (M0.33) in which nest shape is held constant as parent mass increases, and structural scaling (M0.25) in which nests are designed to support a given adult mass. Data from 213 cup-shaped nests, from 36 Australian species weighing 8–360 g, show conductance is proportional to M0.25. This allometric exponent is significantly different from those expected for heat loss and isometric scaling and confirms the hypothesis that structural support for the eggs and incubating parent is the primary factor driving nest design. PMID:21325330

  10. Cross-Sector Review of Drivers and Available 3Rs Approaches for Acute Systemic Toxicity Testing

    PubMed Central

    Seidle, Troy; Robinson, Sally; Holmes, Tom; Creton, Stuart; Prieto, Pilar; Scheel, Julia; Chlebus, Magda

    2010-01-01

    Acute systemic toxicity studies are carried out in many sectors in which synthetic chemicals are manufactured or used and are among the most criticized of all toxicology tests on both scientific and ethical grounds. A review of the drivers for acute toxicity testing within the pharmaceutical industry led to a paradigm shift whereby in vivo acute toxicity data are no longer routinely required in advance of human clinical trials. Based on this experience, the following review was undertaken to identify (1) regulatory and scientific drivers for acute toxicity testing in other industrial sectors, (2) activities aimed at replacing, reducing, or refining the use of animals, and (3) recommendations for future work in this area. PMID:20484382

  11. Anti-lock brake system: an assessment of training on driver effectiveness.

    PubMed

    Mollenhauer, M A; Dingus, T A; Carney, C; Hankey, J M; Jahns, S

    1997-01-01

    When activated correctly, Anti-Lock Brake Systems (ABS) can provide drivers with the ability to stop a vehicle in shorter distances and allow for more vehicle control under heavy braking than conventional brake systems. This is especially true under wet or icy road conditions. However, it is believed that many drivers are either unaware of the correct method of activation or they revert back to the old method of pumping the brakes when they are faced with a hard braking situation. This paper examines the effectiveness of implementing low-cost training methods for alerting drivers to the correct brake activation technique. A 4-page, color training pamphlet was developed and subjects were given a short period of time to read it over before being asked to drive on an icy test track. Results indicated that those subjects who received the training were able to stop in shorter distances in a straight line braking event and more often used the correct brake activation technique than those subjects who did not receive the training. However, the stopping distance benefits were not realized in the curved and surprise braking events. These results suggest that the transfer of verbal knowledge may have value as a means for solving the apparent problem of improper ABS usage. However, some additional research should be done to validate these results. Since this experiment was conducted directly after the material was read, the possibility exists that without reinforcement, the trained braking techniques might become extinct in a short period of time. PMID:9110044

  12. High speed solar wind streams : Repeatable drivers for system science in the magnetosphere

    NASA Astrophysics Data System (ADS)

    Denton, M. H.; Borovsky, J. E.

    2009-12-01

    Much attention is currently being focused on so-called 'system science' in the magnetosphere. This is largely due to the realisation that it is impossible to fully understand any one area without knowledge of the interactions, coupling, and feedback from other areas in the system. High speed solar wind streams (HSSs) present a regular and repeatable driver of the magnetosphere, and are ideal events to use when taking a 'system science' view of the region. We present results of our studies into these phenomena highlighting the interaction between solar wind events and magnetospheric events. We also present a summary of future research goals.

  13. Operator Performance Support System (OPSS)

    NASA Technical Reports Server (NTRS)

    Conklin, Marlen Z.

    1993-01-01

    In the complex and fast reaction world of military operations, present technologies, combined with tactical situations, have flooded the operator with assorted information that he is expected to process instantly. As technologies progress, this flow of data and information have both guided and overwhelmed the operator. However, the technologies that have confounded many operators today can be used to assist him -- thus the Operator Performance Support Team. In this paper we propose an operator support station that incorporates the elements of Video and Image Databases, productivity Software, Interactive Computer Based Training, Hypertext/Hypermedia Databases, Expert Programs, and Human Factors Engineering. The Operator Performance Support System will provide the operator with an integrating on-line information/knowledge system that will guide expert or novice to correct systems operations. Although the OPSS is being developed for the Navy, the performance of the workforce in today's competitive industry is of major concern. The concepts presented in this paper which address ASW systems software design issues are also directly applicable to industry. the OPSS will propose practical applications in how to more closely align the relationships between technical knowledge and equipment operator performance.

  14. Advanced support systems development and supporting technologies for Controlled Ecological Life Support Systems (CELSS)

    NASA Technical Reports Server (NTRS)

    Simon, William E.; Li, Ku-Yen; Yaws, Carl L.; Mei, Harry T.; Nguyen, Vinh D.; Chu, Hsing-Wei

    1994-01-01

    A methyl acetate reactor was developed to perform a subscale kinetic investigation in the design and optimization of a full-scale metabolic simulator for long term testing of life support systems. Other tasks in support of the closed ecological life support system test program included: (1) heating, ventilation and air conditioning analysis of a variable pressure growth chamber, (2) experimental design for statistical analysis of plant crops, (3) resource recovery for closed life support systems, and (4) development of data acquisition software for automating an environmental growth chamber.

  15. A virtual instrumentation support system

    Microsoft Academic Search

    L. F. F. Brito Palma; Adelino R. F. da Silva

    1998-01-01

    A virtual instrumentation support system that permits one to run several concurrent virtual instruments has been developed. In this paper, we present a multi-tasking graphical environment (named AGMT) and two main virtual instrumentation applications-a digital oscilloscope and a digital image processor. The AGMT was designed to work in real-time and interact with sensors and actuators via data acquisition boards, and

  16. Regenerative life support system research

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Sections on modeling, experimental activities during the grant period, and topics under consideration for the future are contained. The sessions contain discussions of: four concurrent modeling approaches that were being integrated near the end of the period (knowledge-based modeling support infrastructure and data base management, object-oriented steady state simulations for three concepts, steady state mass-balance engineering tradeoff studies, and object-oriented time-step, quasidynamic simulations of generic concepts); interdisciplinary research activities, beginning with a discussion of RECON lab development and use, and followed with discussions of waste processing research, algae studies and subsystem modeling, low pressure growth testing of plants, subsystem modeling of plants, control of plant growth using lighting and CO2 supply as variables, search for and development of lunar soil simulants, preliminary design parameters for a lunar base life support system, and research considerations for food processing in space; and appendix materials, including a discussion of the CELSS Conference, detailed analytical equations for mass-balance modeling, plant modeling equations, and parametric data on existing life support systems for use in modeling.

  17. Skylab food system laboratory support

    NASA Technical Reports Server (NTRS)

    Sanford, D.

    1974-01-01

    A summary of support activities performed to ensure the quality and reliability of the Skylab food system design is reported. The qualification test program was conducted to verify crew compartment compatibility, and to certify compliance of the food system with nutrition, preparation, and container requirements. Preflight storage requirements and handling procedures were also determined. Information on Skylab food items was compiled including matters pertaining to serving size, preparation information, and mineral, calorie, and protein content. Accessory hardware and the engraving of food utensils were also considered, and a stowage and orientation list was constructed which takes into account menu use sequences, menu items, and hardware stowage restrictions. A food inventory system was established and food thermal storage tests were conducted. Problems and comments pertaining to specific food items carried onboard the Skylab Workshop were compiled.

  18. System Support for Forensic Inference

    NASA Astrophysics Data System (ADS)

    Gehani, Ashish; Kirchner, Florent; Shankar, Natarajan

    Digital evidence is playing an increasingly important role in prosecuting crimes. The reasons are manifold: financially lucrative targets are now connected online, systems are so complex that vulnerabilities abound and strong digital identities are being adopted, making audit trails more useful. If the discoveries of forensic analysts are to hold up to scrutiny in court, they must meet the standard for scientific evidence. Software systems are currently developed without consideration of this fact. This paper argues for the development of a formal framework for constructing “digital artifacts” that can serve as proxies for physical evidence; a system so imbued would facilitate sound digital forensic inference. A case study involving a filesystem augmentation that provides transparent support for forensic inference is described.

  19. A Pre-intelligent Driver Information Unit

    Microsoft Academic Search

    Jacek Malec; Magnus Morin

    1993-01-01

    This paper describes an Artificial Intelligence-based approach to the design ofa driver information unit (DIU). The system should be able to provide the driverwith accurate, reliable, necessary and sufficient, and timely support on the basis ofunreliable and limited input information. Moreover, the system is to function in adevelopment environment under the assumption of incrementality. In the design ofthe DIU we

  20. Designing Driver Assistance Systems with Crossmodal Signals: Multisensory Integration Rules for Saccadic Reaction Times Apply

    PubMed Central

    Steenken, Rike; Weber, Lars; Colonius, Hans; Diederich, Adele

    2014-01-01

    Modern driver assistance systems make increasing use of auditory and tactile signals in order to reduce the driver's visual information load. This entails potential crossmodal interaction effects that need to be taken into account in designing an optimal system. Here we show that saccadic reaction times to visual targets (cockpit or outside mirror), presented in a driving simulator environment and accompanied by auditory or tactile accessories, follow some well-known spatiotemporal rules of multisensory integration, usually found under confined laboratory conditions. Auditory nontargets speed up reaction time by about 80 ms. The effect tends to be maximal when the nontarget is presented 50 ms before the target and when target and nontarget are spatially coincident. The effect of a tactile nontarget (vibrating steering wheel) was less pronounced and not spatially specific. It is shown that the average reaction times are well-described by the stochastic “time window of integration” model for multisensory integration developed by the authors. This two-stage model postulates that crossmodal interaction occurs only if the peripheral processes from the different sensory modalities terminate within a fixed temporal interval, and that the amount of crossmodal interaction manifests itself in an increase or decrease of second stage processing time. A qualitative test is consistent with the model prediction that the probability of interaction, but not the amount of crossmodal interaction, depends on target–nontarget onset asynchrony. A quantitative model fit yields estimates of individual participants' parameters, including the size of the time window. Some consequences for the design of driver assistance systems are discussed. PMID:24800823

  1. Trajectories of evolution and drivers of change in European mountain cattle farming systems.

    PubMed

    García-Martínez, A; Olaizola, A; Bernués, A

    2009-01-01

    In the last few decades, significant changes in livestock farming systems and land use were observed in European mountain areas with large implications for the sustainability of grazing agro-ecosystems. System dynamic studies become essential to understand these changes, identify the drivers involved and trying to anticipate what might happen in the future. The objectives of this study were as follows: (i) to analyse the main recent changes that occurred in mountain cattle farming in the Spanish Pyrenees; (ii) to typify diverse trajectories of evolution of these systems; and (iii) to establish drivers of change that might help understand the evolution of mountain agriculture. A constant sample of mountain cattle farms was analysed for the period 1990 to 2004. In total, 30% of farms have disappeared during this time interval. For the remaining farms, the most important general changes observed were as follows: increment of size; change of productive orientation from mixed beef-dairy to pure beef production; extensification of grazing management; reduction of family labour and increase of pluriactivity; reduction of unitary variable costs; and increase of labour productivity. After the elimination of common temporal effects between dates, multivariate techniques allowed for the identification of three patterns and six specific trajectories of evolution that are profiled in the text. Relationships between the patterns of evolution and other variables referring the farm, the household and the socio-economic environment were identified as drivers of change: (i) the specific location of the farm in relation to the capital village of the municipality and the evolution other sectors of the economy, in particular tourism; (ii) the size of the family labour, presence of successors and degree of dynamism of the farmer; and (iii) the initial orientation of production. PMID:22444182

  2. Ventilation and Heart Rate Monitoring in Drivers using a Contactless Electrical Bioimpedance System

    NASA Astrophysics Data System (ADS)

    Macías, R.; García, M. A.; Ramos, J.; Bragós, R.; Fernández, M.

    2013-04-01

    Nowadays, the road safety is one of the most important priorities in the automotive industry. Many times, this safety is jeopardized because of driving under inappropriate states, e.g. drowsiness, drugs and/or alcohol. Therefore several systems for monitoring the behavior of subjects during driving are researched. In this paper, a device based on a contactless electrical bioimpedance system is shown. Using the four-wire technique, this system is capable of obtaining the heart rate and the ventilation of the driver through multiple textile electrodes. These textile electrodes are placed on the car seat and the steering wheel. Moreover, it is also reported several measurements done in a controlled environment, i.e. a test room where there are no artifacts due to the car vibrations or the road state. In the mentioned measurements, the system response can be observed depending on several parameters such as the placement of the electrodes or the number of clothing layers worn by the driver.

  3. 42 CFR 441.555 - Support system.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...Supports State Plan Option (Community First Choice) § 441.555 Support system... (ii) Range and scope of individual choices and options. (iii) Process for changing...needs, and preferences of Community First Choice services and supports. (x)...

  4. 42 CFR 441.555 - Support system.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Supports State Plan Option (Community First Choice) § 441.555 Support system... (ii) Range and scope of individual choices and options. (iii) Process for changing...needs, and preferences of Community First Choice services and supports. (x)...

  5. 42 CFR 441.555 - Support system.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Supports State Plan Option (Community First Choice) § 441.555 Support system... (ii) Range and scope of individual choices and options. (iii) Process for changing...needs, and preferences of Community First Choice services and supports. (x)...

  6. The effects of travel information presentation through nomadic systems on driver behaviour

    Microsoft Academic Search

    K. A. Brookhuis; M. Dicke

    2009-01-01

    Introduction  The aim of this study was to investigate the effects of providing travel information to drivers about a traffic jam ahead\\u000a and a potential detour or short-cut. Two groups of participants, native and non-native Dutch speakers were requested to drive\\u000a in a driving simulator under both calm and dense traffic conditions.\\u000a \\u000a \\u000a \\u000a Method  Travel-information was presented by means of three nomadic systems;

  7. Approaches to enhance driver situational assessment aids

    E-print Network

    Jones, Eric M. (Eric Michael)

    2007-01-01

    Collision warning systems encounter a fundamental trade-off between providing the driver more time in which to respond and alerting the driver unnecessarily. The probability that a driver successfully avoids a hazard ...

  8. Systems engineering considerations for operational support systems

    NASA Technical Reports Server (NTRS)

    Aller, Robert O.

    1993-01-01

    Operations support as considered here is the infrastructure of people, procedures, facilities and systems that provide NASA with the capability to conduct space missions. This infrastructure involves most of the Centers but is concentrated principally at the Johnson Space Center, the Kennedy Space Center, the Goddard Space Flight Center, and the Jet Propulsion Laboratory. It includes mission training and planning, launch and recovery, mission control, tracking, communications, data retrieval and data processing.

  9. Design of a hardware/software FPGA-based driver system for a large area high resolution CCD image sensor

    NASA Astrophysics Data System (ADS)

    Chen, Ying; Xu, Wanpeng; Zhao, Rongsheng; Chen, Xiangning

    2014-09-01

    A hardware/software field programmable gate array (FPGA)-based driver system was proposed and demonstrated for the KAF-39000 large area high resolution charge coupled device (CCD). The requirements of the KAF-39000 driver system were analyzed. The structure of "microprocessor with application specific integrated circuit (ASIC) chips" was implemented to design the driver system. The system test results showed that dual channels of imaging analog data were obtained with a frame rate of 0.87 frame/s. The frequencies of horizontal timing and vertical timing were 22.9 MHz and 28.7 kHz, respectively, which almost reached the theoretical value of 24 MHz and 30 kHz, respectively.

  10. The flight telerobotic servicer Tinman concept: System design drivers and task analysis

    NASA Technical Reports Server (NTRS)

    Andary, J. F.; Hewitt, D. R.; Hinkal, S. W.

    1989-01-01

    A study was conducted to develop a preliminary definition of the Flight Telerobotic Servicer (FTS) that could be used to understand the operational concepts and scenarios for the FTS. Called the Tinman, this design concept was also used to begin the process of establishing resources and interfaces for the FTS on Space Station Freedom, the National Space Transportation System shuttle orbiter, and the Orbital Maneuvering vehicle. Starting with an analysis of the requirements and task capabilities as stated in the Phase B study requirements document, the study identified eight major design drivers for the FTS. Each of these design drivers and their impacts on the Tinman design concept are described. Next, the planning that is currently underway for providing resources for the FTS on Space Station Freedom is discussed, including up to 2000 W of peak power, up to four color video channels, and command and data rates up to 500 kbps between the telerobot and the control station. Finally, an example is presented to show how the Tinman design concept was used to analyze task scenarios and explore the operational capabilities of the FTS. A structured methodology using a standard terminology consistent with the NASA/National Bureau of Standards Standard Reference Model for Telerobot Control System Architecture (NASREM) was developed for this analysis.

  11. Investigation of potential driver modules and transmission lines for a high frequency power system on the space station

    NASA Technical Reports Server (NTRS)

    Brush, Harold T.

    1986-01-01

    The feasibility of using Series Resonant Inverter as the driver module for high frequency power system on the Space Station was assessed. The performance of the Series Resonant Inverter that was used in the testing of the single-phase, 2.0-kw resonant AC power system breadboard is summarized. The architecture is descirbed and the driver modules of the 5.0 kw AC power system breadboard are analyzed. An investigation of the various types of transmission lines is continued. Measurements of equivalent series resistor and inductor and equivalent parallel capacitors are presented. In particular, a simplified approach is utilized to describe the optimal transmission line.

  12. Metric half-span model support system

    NASA Technical Reports Server (NTRS)

    Jackson, C. M., Jr.; Dollyhigh, S. M.; Shaw, D. S. (inventors)

    1982-01-01

    A model support system used to support a model in a wind tunnel test section is described. The model comprises a metric, or measured, half-span supported by a nonmetric, or nonmeasured half-span which is connected to a sting support. Moments and forces acting on the metric half-span are measured without interference from the support system during a wind tunnel test.

  13. Conceptual Design Studies of a Laser Diode Pumped Solid State Laser System for the Laser Fusion Reactor Driver

    Microsoft Academic Search

    Kenta Naito; Masanobu Yamanaka; Masahiro Nakatsuka; Tadashi Kanabe; Kunioki Mima; Chiyoe Yamanaka; Sadao Nakai

    1992-01-01

    We have developed a conceptual designing technique of a laser diode pumped solid state laser system having high peak power, high efficiency, good beam quality, and high repetition rate. Using this technique, we evaluated the feasibility of the systems with several solid state laser materials for the laser fusion reactor driver with 10 MJ blue output, 10% overall efficiency, and

  14. Civil Engineering Decision Support Systems in Lithuania

    Microsoft Academic Search

    E. K. Zavadskas; A. Kaklauskas

    Summary Civil engineering decision support systems (construction, building life cycle, refurbishment, total quality management, innovation, etc.) created in Lithuania are described in this paper. The above decision support systems comprise of the following constituent parts: data (database and its management system), models (model base and its management system) and a user interface. Presentation of information in databases may be in

  15. Selection of shuttle payload data processing drivers for the data system new technology study

    NASA Technical Reports Server (NTRS)

    1976-01-01

    An investigation of all payloads in the IBM disciplines and the selection of driver payloads within each discipline are described. The driver payloads were selected on the basis of their data processing requirements. These requirements are measured by a weighting scheme. The total requirements for each discipline are estimated by use of the technology payload model. The driver selection process which was both a payload by payload comparison and a comparison of expected groupings of payloads was examined.

  16. Decision time for clinical decision support systems.

    PubMed

    O'Sullivan, Dympna; Fraccaro, Paolo; Carson, Ewart; Weller, Peter

    2014-08-01

    Clinical decision support systems are interactive software systems designed to help clinicians with decision-making tasks, such as determining a diagnosis or recommending a treatment for a patient. Clinical decision support systems are a widely researched topic in the computer science community, but their inner workings are less well understood by, and known to, clinicians. This article provides a brief explanation of clinical decision support systems and some examples of real-world systems. It also describes some of the challenges to implementing these systems in clinical environments and posits some reasons for the limited adoption of decision-support systems in practice. It aims to engage clinicians in the development of decision support systems that can meaningfully help with their decision-making tasks and to open a discussion about the future of automated clinical decision support as a part of healthcare delivery. PMID:25099829

  17. INFORMATION SYSTEMS SUPPORT FOR MANUFACTURING PROCESSES

    E-print Network

    1 INFORMATION SYSTEMS SUPPORT FOR MANUFACTURING PROCESSES The standard S95 perspective Keywords: Manufacturing Enterprises, Enterprise Resource Planning, Manufacturing Execution Systems, Discrete Processes, Continuous Processes, Batch Processes, Manufacturing Systems Integration. Abstract: During the last years

  18. Driver Behavior and Situation Aware Brake Assistance for Intelligent Vehicles To reduce rear-end collisions, intelligent car safety systems must predict what drivers need to know and how they will try to act

    Microsoft Academic Search

    Joel C. McCall; Mohan M. Trivedi

    This paper deals with the development of Human- Centric Intelligent Driver Assistance Systems. Rear-end colli- sions account for a large portion of traffic accidents. To help mitigate this problem, predictive braking systems and adaptive cruise control systems have been developed. However, these types of systems usually rely solely on the vehicle and vehicle surround sensors, either ignoring the human component

  19. 49 CFR 571.203 - Standard No. 203; Impact protection for the driver from the steering control system.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...steering control systems that will minimize chest, neck, and facial injuries to the driver...h, the impact force developed on the chest of the body block transmitted to the steering...h, the impact force developed on the chest of the body block transmitted to the...

  20. Integration of Computer-Based Virtual Check Ride System--Pre-Trip Inspection in Commercial Driver License Training Program

    ERIC Educational Resources Information Center

    Makwana, Alpesh P.

    2009-01-01

    "Pre-Trip Inspection" of the truck and trailer is one of the components of the current Commercial Driver's License (CDL) test. This part of the CDL test checks the ability of the student to identify the important parts of the commercial vehicle and their potential defects. The "Virtual Check Ride System" (VCRS), a computer-based application, is an…

  1. Human-kinetic multiclass traffic flow theory and modelling with application to advanced driver assistance systems in congestion

    Microsoft Academic Search

    Chris. M. J. Tampere

    2004-01-01

    Motivated by the desire to explore future traffic flows that will consist of a mixture of classical vehicles and vehicles equipped with advanced driver assistance systems, new mathematical theories and models are developed. The basis for this theory was borrowed from the kinetic description of gas flows, where we replaced the behaviour of the molecules by typical human driving behaviour.

  2. Academic Support Systems: A Networked Approach.

    ERIC Educational Resources Information Center

    Klingenstein, Kenneth

    1984-01-01

    Academic support systems are characterized as those activities that center around a dean's office--office automation/information systems, institutional research and electronic communication. The basic and design and implementation issues that are encountered in providing these support systems are examined. (Author/MLW)

  3. A preliminary experimental investigation of display patterns for driver-in-vehicle information system in Taiwan

    Microsoft Academic Search

    Chee Chung Tong; Ares Chiou

    1994-01-01

    The focus of this paper is part of an ongoing research project regarding the driver's dynamic route choice\\/switching behavior interacting with ADIS. The major topic investigated in this paper is a preliminary study to understand the suitability of various display patterns of ADIS for native drivers in Taiwan. The effort is performed through controlled laboratory experiments from which participants' behavior

  4. Analysis of driver's information preferences and use in automobile travel: Implications for Advanced Traveler Information Systems

    Microsoft Academic Search

    Fredrick M. Streff; Richard R. Wallace

    1993-01-01

    Results from the analysis of a survey of drivers conducted in the state of Michigan are presented. The emphasis is on drivers' information use and preferences. Individual and group differences in use of and preferences for traveler information are discussed, as are perceived problems with current sources of travel and traffic information. The findings, which are discussed in the context

  5. A Resilient SIL 2 Driver Machine Interface for Train Control Systems Andrea Ceccarelli1

    E-print Network

    Firenze, Universitŕ degli Studi di

    @unifi.it Abstract In railway train-borne equipment, the Driver Machine Interface (DMI) acts like a bridge be- tween) through a GSM-Railway network. The DMI acts like a bridge between the train driver and the EVC. It com silently, thus reducing unexpected train stops). 1 Introduction Two main components of railway train

  6. Multikilohertz Pockels cell driver

    SciTech Connect

    Bado, P.; Bouvier, M.

    1985-09-01

    We have developed a Pockels driver, based on field-effect transistors and a microwave tube. This system, capable of generating double voltage steps, operates reliably at repetition rates as high as 10 kHz.

  7. Multikilohertz Pockels cell driver

    Microsoft Academic Search

    P. Bado; M. Bouvier

    1985-01-01

    We have developed a Pockels driver, based on field-effect transistors and a microwave tube. This system, capable of generating double voltage steps, operates reliably at repetition rates as high as 10 kHz.

  8. System study of a diode-pumped solid-state-laser driver for inertial fusion energy

    SciTech Connect

    Orth, C.D.; Payne, S.A.

    1995-06-15

    The present a conceptual design of a diode-pumped solid-state-laser (DPSSL) driver for an inertial fusion energy (IFE) power plant based on the maximized cost of electricity (COE) as determined in a comprehensive systems study. This study contained extensive detail for all significant DPSSL physics and costs, plus published scaling relationships for the costs of the target chamber and the balance of plant (BOP). Our DPSSL design offers low development cost because it is modular, can be fully tested functionally at reduced scale, and is based on mature solid-state-laser technology. Most of the parameter values that we used are being verified by experiments now in progress. Future experiments will address the few issues that remain. As a consequence, the economic and technical risk of our DPSSL driver concept is becoming rather low. Baseline performance at 1 GW{sub e} using a new gain medium [Yb{sup 3+}-doped Sr{sub 5}(PO{sub 4}){sub 3}F or Yb:S-FAP] includes a product of laser efficiency and target gain of {eta}G = 7, and a COE of 8.6 cents/kW{center_dot}h, although values of {eta}G {ge} 11 and COEs {le}6.6 cents/kW{center_dot}h are possible at double the assumed target gain of 76 at 3.7 MJ. We present a summary of our results, discuss why other more-common types of laser media do not perform as well as Yb:S-FAP, and present a simple model that shows where DPSSL development should proceed to reduce projected COEs.

  9. Environmental Control and Life Support Systems and Power Systems ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Environmental Control and Life Support Systems and Power Systems - Space Transportation System, Orbiter Discovery (OV-103), Lyndon B. Johnson Space Center, 2101 NASA Parkway, Houston, Harris County, TX

  10. Supporting Multiple Cognitive Processing Styles Using Tailored Support Systems

    SciTech Connect

    Tuan Q. Tran; Karen M. Feigh; Amy R. Pritchett

    2007-08-01

    According to theories of cognitive processing style or cognitive control mode, human performance is more effective when an individual’s cognitive state (e.g., intuition/scramble vs. deliberate/strategic) matches his/her ecological constraints or context (e.g., utilize intuition to strive for a "good-enough" response instead of deliberating for the "best" response under high time pressure). Ill-mapping between cognitive state and ecological constraints are believed to lead to degraded task performance. Consequently, incorporating support systems which are designed to specifically address multiple cognitive and functional states e.g., high workload, stress, boredom, and initiate appropriate mitigation strategies (e.g., reduce information load) is essential to reduce plant risk. Utilizing the concept of Cognitive Control Models, this paper will discuss the importance of tailoring support systems to match an operator's cognitive state, and will further discuss the importance of these ecological constraints in selecting and implementing mitigation strategies for safe and effective system performance. An example from the nuclear power plant industry illustrating how a support system might be tailored to support different cognitive states is included.

  11. Reconfigurable Security Support for Embedded Systems

    E-print Network

    Paris-Sud XI, Université de

    Reconfigurable Security Support for Embedded Systems Guy Gogniat Laboratory LESTER University for embedded sys- tems (SANES) that leverages the capabilities of reconfigurable hardware to provide efficient the efficiency of reconfigurable architecture to implement security primitives within embedded systems. We also

  12. Science Drivers for Polarimetric Exploration of the Solar System and Beyond

    NASA Astrophysics Data System (ADS)

    Yanamandra-Fisher, P. A.

    2012-12-01

    Remote sensing and robotic exploration of our solar system and exoplanetary systems can be enhanced with the inclusion of spectrophotopolarimetry as a complementary approach to standard techniques of imaging and spectroscopy. Since all objects have unique polarimetric signatures, like fingerprints, much can be learned about the scattering object. I highlight some of the science drivers that will benefit from polarimteric exploration. In our own dynamic solar system, the study of linear polarization of reflected light by solar system objects (planetary atmospheres, satellites, rings systems, comets, asteroids, dust, etc.) provides insight into the scattering characteristics of aerosols and hazes in atmospheres and surficial properties of atmosphereless objects. Well-known examples are the identification of spherical droplets of sulphuric acid in the atmosphere of Venus, and dust storms and ice clouds on Mars. In the case of outer planets, although the phase angles available from earth to observe are limited to a very narrow range, measurements of linear limb polarization characterizes the variation of aerosol properties across the planetary disk. Since methane is present in all giant planets' atmospheres, limb measurements of linear polarization in various methane bands allow a direct measurement of the vertical distribution of aerosol and haze particles, complementary to direct imaging and spectroscopy. Linear polarization of atmosphereless objects (the Moon, planetary satellites and asteroids) are diagnostic of surface texture, and demonstrate that most of them have their surfaces covered with a regolith of fine material, function of particle size and packing density. The recent discovery of multi-planetary systems (or multis) by Kepler mission, illustrate that a variety of planetary systems exist beyond our solar system. Current indirect techniques such as radial velocity, pulsar timing, and transits identify exoplanetary candidates and identification of atmospheric species. Direct detection and characterization of exoplanets can be achieved by measurement of linear polarization of reflected starlight by exoplanets. Our solar system, therefore, provides a dynamic laboratory and template to detect and characterize exoplanetary systems. Search for habitability elsewhere in the solar and exoplanetary systems is another important science driver. Chirality or handedness is a property of molecules that exhibit mirror-image symmetry (similar to right and left hands). Right- or left-chirality is characterized by circularly polarized light. All known biological activity and all life forms on earth are chiral and pre-dominantly left-handed. This property can be investigated by measuring the circular polarization of various species on planetary bodies. The search for the emergence of habitability in the solar system and exoplanetary systems can be aided by the measurement of circular polarization of comets; planetary and satellites' atmospheres and asteroids. Therefore, inclusion of polarimetric remote sensing and development of spectropolarimeters for ground-based facilities and instruments on space missions is needed, with similar maturation of vector radiative transfer models and related laboratory measurements.

  13. Analysis of a Cyclotron Based 400 MeV/u Driver System for a Radioactive Beam Facility

    E-print Network

    F. Marti; R. C. York; H. Blosser; M. M. Gordon; D. Gorelov; T. Grimm; D. Johnson; P. Miller; E. Pozdeyev; J. Vincent; X. Wu; A. Zeller

    1999-08-20

    The creation of intense radioactive beams requires intense and energetic primary beams. A task force analysis of this subject recommended an acceleration system capable of 400 MeV/u uranium at 1 particle uA as an appropriate driver for such a facility. The driver system should be capable of accelerating lighter ions at higher intensity such that a constant final beam power (~100kW) is maintained. This document is a more detailed follow on to the previous analysis of such a system incorporating a cyclotron. The proposed driver pre-acceleration system consists of an ion source, radio frequency quadrupole, and linac chain capable of producing a final energy of 30 MeV/u and a charge (Q) to mass (A) of Q/A ~1/3. This acceleration system would be followed by a Separated Sector Cyclotron with a final output energy of 400 MeV/u. This system provides a more cost-effective solution in terms of initial capital investment as well as of operation compared to a fully linac system with the same primary beam output parameters.

  14. Evaluation of a sudden brake warning system: effect on the response time of the following driver.

    PubMed

    Isler, Robert B; Starkey, Nicola J

    2010-07-01

    This study used a video-based braking simulation dual task to carry out a preliminary evaluation of the effect of a sudden brake warning system (SBWS) in a leading passenger vehicle on the response time of the following driver. The primary task required the participants (N=25, 16 females, full NZ license holders) to respond to sudden braking manoeuvres of a lead vehicle during day and night driving, wet and dry conditions and in rural and urban traffic, while concurrently performing a secondary tracking task using a computer mouse. The SBWS in the lead vehicle consisted of g-force controlled activation of the rear hazard lights (the rear indicators flashed), in addition to the standard brake lights. Overall, the results revealed that responses to the braking manoeuvres of the leading vehicles when the hazard lights were activated by the warning system were 0.34 s (19%) faster compared to the standard brake lights. The SBWS was particularly effective when the simulated braking scenario of the leading vehicle did not require an immediate and abrupt braking response. Given this, the SBWS may also be beneficial for allowing smoother deceleration, thus reducing fuel consumption. These preliminary findings justify a larger, more ecologically valid laboratory evaluation which may lead to a naturalistic study in order to test this new technology in 'real world' braking situations. PMID:20034608

  15. Decision Support Systems Marek J. Druzdzel and Roger R. Flynn

    E-print Network

    Druzdzel, Marek J.

    Decision Support Systems Marek J. Druzdzel and Roger R. Flynn Decision Systems Laboratory School . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Decision-Analytic Decision Support Systems . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Interfaces to Decision Support Systems 11 Support for Model Construction and Model Analysis

  16. Advanced Group Support Systems and Facilities

    NASA Technical Reports Server (NTRS)

    Noor, Ahmed K. (Compiler); Malone, John B. (Compiler)

    1999-01-01

    The document contains the proceedings of the Workshop on Advanced Group Support Systems and Facilities held at NASA Langley Research Center, Hampton, Virginia, July 19-20, 1999. The workshop was jointly sponsored by the University of Virginia Center for Advanced Computational Technology and NASA. Workshop attendees came from NASA, other government agencies, industry, and universities. The objectives of the workshop were to assess the status of advanced group support systems and to identify the potential of these systems for use in future collaborative distributed design and synthesis environments. The presentations covered the current status and effectiveness of different group support systems.

  17. 76 FR 68328 - Commercial Driver's License Information System State Procedures Manual, Release 5.2.0

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-04

    ...gov. SUPPLEMENTARY INFORMATION: Electronic Access...regulations.gov and searching the Agency name and...battery; and (2) information about accidents in...stated that certain information not related to a driver's...chemical abuse and child molestation....

  18. IRSS: Incident Response Support System

    Microsoft Academic Search

    Gianluca Capuzzi; Luca Spalazzi; Francesco Pagliarecci

    2006-01-01

    Computer and network security can be improved by three kinds of tools: tools for intrusion prevention, tools for intrusion detection, and tools for incident response. Several systems have been proposed and developed for the first two kinds of tools. Concerning the third, as far as we know, the response is still left to the system administrator: no automatic tools have

  19. Unmanned systems win unexpected support

    SciTech Connect

    Schneiderman, R.

    1991-09-01

    A review of unmanned aerial vehicles (UAVs) is presented in which emphasis is given to recent mission accomplishments and current directions of research. Existing and new military UAV programs are listed with reference to funding, the type of vehicle, and level of development. Several trends are established including the reliance of UVAs on global positioning satellites and advanced electronics and the growth of the UVA industry. UVAs that are in advanced stages of development or have been deployed include short-range UAV such as the Pioneer, the Pointer, the Sky Owl, and the Hunter. Key UAV systems are described such as the Advanced Tactical Airborne Reconnaissance System, the Maritime Vertical Takeoff and Landing, and other VTOL systems. Very small UVAs and Exdrones are also discussed, and a weather reconnaissance system and surveillance systems are mentioned.

  20. Driver's behavioural changes with new intelligent transport system interventions at railway level crossings-A driving simulator study.

    PubMed

    Larue, Grégoire S; Kim, Inhi; Rakotonirainy, Andry; Haworth, Narelle L; Ferreira, Luis

    2015-08-01

    Improving safety at railway level crossings is an important issue for the Australian transport system. Governments, the rail industry and road organisations have tried a variety of countermeasures for many years to improve railway level crossing safety. New types of intelligent transport system (ITS) interventions are now emerging due to the availability and the affordability of technology. These interventions target both actively and passively protected railway level crossings and attempt to address drivers' errors at railway crossings, which are mainly a failure to detect the crossing or the train and misjudgement of the train approach speed and distance. This study aims to assess the effectiveness of three emerging ITS that the rail industry considers implementing in Australia: a visual in-vehicle ITS, an audio in-vehicle ITS, as well as an on-road flashing beacons intervention. The evaluation was conducted on an advanced driving simulator with 20 participants per trialled technology, each participant driving once without any technology and once with one of the ITS interventions. Every participant drove through a range of active and passive crossings with and without trains approaching. Their speed approach of the crossing, head movements and stopping compliance were measured. Results showed that driver behaviour was changed with the three ITS interventions at passive crossings, while limited effects were found at active crossings, even with reduced visibility. The on-road intervention trialled was unsuccessful in improving driver behaviour; the audio and visual ITS improved driver behaviour when a train was approaching. A trend toward worsening driver behaviour with the visual ITS was observed when no trains were approaching. This trend was not observed for the audio ITS intervention, which appears to be the ITS intervention with the highest potential for improving safety at passive crossings. PMID:25956609

  1. Identification of causal genetic drivers of human disease through systems-level analysis of regulatory networks*

    Cancer.gov

    Identification of driver mutations in human diseases is often limited by cohort size and availability of appropriate statistical models. We propose a framework for the systematic discovery of genetic alterations that are causal determinants of disease, by prioritizing genes upstream of functional disease drivers, within regulatory networks inferred de novo from experimental data. We tested this framework by identifying the genetic determinants of the mesenchymal subtype of glioblastoma.

  2. Stress Mechanism about Field Lightning Surge of High Voltage BJT Based Line Driver for ADSL System

    Microsoft Academic Search

    Jae-seong Jeong; Jae-hyun Lee; Jong-shin Ha; Sang-deuk Park

    2005-01-01

    In this paper, we have verified stress root caused by lightning surge in High voltage BJT based line driver of ADSL telecommunication and created failure mechanism. To reproduce damages in Line driver, we have applied STD surge waveform in operating condition, which is specified in IEC-6000-4-5, to component and board level. Visual isolation for Damage root was conducted with Real-time

  3. CHOOSING THE SYSTEM OF UNEMPLOYMENT INCOME SUPPORT

    Microsoft Academic Search

    Milan Vodopivec

    The paper evaluates five alternative systems of unemployment income support: unemployment insurance, unemployment assistance, unemployment insurance savings accounts, severance pay, and public works. It describes these systems and, by summarizing both empirical and theoretical literature, identifies key strengths and weaknesses of each system. Having in mind the systems' performance effects and taking into account country-specific conditions - chief among them

  4. Controlled Ecological Life Support System

    NASA Technical Reports Server (NTRS)

    Averner, Maurice M.

    1989-01-01

    The NASA CELLS program is based upon the integration of biological and physiochemical processes in order to produce a system that will produce food, a breathable atmosphere, and potable water from metabolic and other wastes. The CELSS concept is described and a schematic system diagram is provided. Central to the CELSS concept is the Plant Growth Chamber, where green plant photosynthesis produces food, and aids in the production of oxygen and water. Progress to date at the Breadboard Facility at the Kennedy Space Center is summarized. The Breadboard Facility will implement the basic techniques and processes required for a CELSS based on photosynthetic plant growth in a ground-based system of practical size and results will be extrapolated to predict the performance of a full-sized system. Current available technology and near-future forecasts for plant growth techniques (focusing on maximum productivity), food sources (to select optimal CELSS plants), and waste management and contaminant control are discussed.

  5. The environmental control and life-support system for a lunar base: What drives its design

    NASA Technical Reports Server (NTRS)

    Hypes, Warren D.; Hall, John B., Jr.

    1992-01-01

    The purpose of this paper is to identify and briefly discuss some of the ground rules and mission scenario details that become drivers of the environmental control and life support (ECLS) system design and of the logistics related to the design. This paper is written for mission planners and non-ECLS system engineers to inform them of the details that will be important to the ECLS engineer when the design phase is reached. In addition, examples illustrate the impact of some selected mission characteristics on the logistics associated with ECLS systems. The last section of this paper focuses on the ECLS system technology development sequence and highlights specific portions that need emphasis.

  6. Mathematical Modeling Of Life-Support Systems

    NASA Technical Reports Server (NTRS)

    Seshan, Panchalam K.; Ganapathi, Balasubramanian; Jan, Darrell L.; Ferrall, Joseph F.; Rohatgi, Naresh K.

    1994-01-01

    Generic hierarchical model of life-support system developed to facilitate comparisons of options in design of system. Model represents combinations of interdependent subsystems supporting microbes, plants, fish, and land animals (including humans). Generic model enables rapid configuration of variety of specific life support component models for tradeoff studies culminating in single system design. Enables rapid evaluation of effects of substituting alternate technologies and even entire groups of technologies and subsystems. Used to synthesize and analyze life-support systems ranging from relatively simple, nonregenerative units like aquariums to complex closed-loop systems aboard submarines or spacecraft. Model, called Generic Modular Flow Schematic (GMFS), coded in such chemical-process-simulation languages as Aspen Plus and expressed as three-dimensional spreadsheet.

  7. SAX mission ground support system.

    NASA Astrophysics Data System (ADS)

    Manca, M.; D'Alessandro, F.; Negri, M. B.; Trifoglio, M.

    A description of the SAX Ground Segment is given from the point of view of its architecture and activities, together with a brief overview of the SAX mission. The principal components of the SAX Ground Segment are the Operational Control Center, the Telemetry Tracking and Command Station and the Data Relay System.

  8. An Incident Response Support System

    Microsoft Academic Search

    Gianluca Capuzzi; Egidio Cardinale; Ivan Di Pietro; Luca Spalazzi

    2006-01-01

    Summary Computer and network security can be improved by three kinds of tools: tools for intrusion prevention, tools for intrusion detection, and tools for incident response. Many systems have been proposed and developed for the first two kinds of tools. Concerning the third, as far as we know, the response plan is still left to the security manager: no automatic

  9. Considerations Regarding the Development of an Environmental Control and Life Support System for Lunar Surface Applications

    NASA Technical Reports Server (NTRS)

    Bagdigian, Robert M.

    2008-01-01

    NASA is engaged in early architectural analyses and trade studies aimed at identifying requirements, predicting performance and resource needs, characterizing mission constraints and sensitivities, and guiding technology development planning needed to conduct a successful human exploration campaign of the lunar surface. Conceptual designs and resource estimates for environmental control and life support systems (ECLSS) within pressurized lunar surface habitats and rovers have been considered and compared in order to support these lunar campaign studies. This paper will summarize those concepts and some of the more noteworthy considerations that will likely remain as key drivers in the evolution of the lunar surface ECLSS architecture.

  10. A Cooperative Intelligent Decision Support System

    Microsoft Academic Search

    Abdelkader Adla; Pascale Zarate

    2006-01-01

    Traditional decision support systems give not enough possibilities of intervention to the user. In complex situations, decision is not structured and it becomes primordial to design intelligent and cooperative systems allowing a joint resolution of problem and dynamic sharing of the tasks between the user and the system according to problems to be solved and an appropriate cooperation mode. We

  11. Decision Support System for Fighter Pilots

    E-print Network

    .g. enemy radar systems. If the enemy detects the aircraft a missile may be fired to seek and destroy-board sensor systems, and #12;ii tactical data from other platforms (aircraft, ships, etc.) is describedDecision Support System for Fighter Pilots Lars Rosenberg Randleff Kongens Lyngby 2007 IMM-PHD-2007

  12. Driver and Right-Front Passenger Restraint System Interaction, Injury Potential, and Thoracic Injury Prediction

    PubMed Central

    Kent, Richard W.; Crandall, Jeff R.; Bolton, James R.; Duma, Stefan M.

    2000-01-01

    Restrained driver and right-front passenger kinematics and injury outcome in frontal collisions are compared using FARS data and human cadaver sled tests. The FARS data indicate that a frontal airbag may provide greater benefit for a passenger than for a driver. The thoracic injuries sustained by passenger subjects restrained by a force-limited, pretensioned belt and airbag are evaluated, and kinematics are compared to driver-side subjects. The injury-predictive ability of existing thoracic injury criteria is evaluated for passenger-side occupants. Driver and passenger kinematic differences are identified and the implications are discussed. The chest acceleration of the passenger-side subjects exhibited a bimodal profile with an initial (and global) maximum before the subject loaded the airbag. A second acceleration peak occurred as the subject loaded both the belt and the airbag. A similarly restrained driver-side subject loaded the belt and airbag concurrently at the time of peak chest acceleration and therefore did not exhibit this biomodal chest acceleration. PMID:11558087

  13. Operation of hydropower generation systems in the Alps under future climate and socio-economic drivers

    NASA Astrophysics Data System (ADS)

    Anghileri, Daniela; Castelletti, Andrea; Burlando, Paolo

    2015-04-01

    Alpine hydropower systems are an important source of renewable energy for many countries in Europe. In Switzerland, for instance, they represent the most important domestic source of renewable energy (around 55%). However, future hydropower production may be threatened by unprecedented challenges, such as a decreasing water availability, due to climate change (CC) and associated glacier retreat, and uncertain operating conditions, such as future power needs and highly fluctuating demand on the energy market. This second aspect has gained increasingly relevance since the massive introduction of solar and wind generating systems in the portfolios of many European countries. Because hydropower systems have the potential to provide backup storage of energy to compensate for fluctuations that are typical, for instance, of solar and wind generation systems, it is important to investigate how the increased demand for flexible operation, together with climate change challenge and fluctuating markets, can impact their operating policies. The Swiss Competence Center on Supply of Electricity (www.sccer-soe.ch) has been recently established to explore new potential paths for the development of future power generation systems. In this context, we develop modelling and optimization tools to design and assess new operation strategies for hydropower systems to increase their reliability, flexibility, and robustness to future operation conditions. In particular, we develop an advanced modelling framework for the integrated simulation of the operation of hydropower plants, which accounts for CC-altered streamflow regimes, new demand and market conditions, as well as new boundary conditions for operation (e.g., aquatic ecosystem conservation). The model construction consists of two primary components: a physically based and spatially distributed hydrological model, which describes the relevant hydrological processes at the basin scale, and an agent based decision model, which describes the behavior of hydropower operators. This integrated model allows to quantitatively explore possible trajectories of future evolution of the hydropower systems under the combined effect of climate and socio-economic drivers. In a multi-objective perspective, the model can test how different hydropower operation strategies perform in terms of power production, reliability and flexibility of supply, profitability of operation, and ecosystem conservation. This contribution presents the methodological framework designed to formulate the integrated model, its expected outcomes, and some preliminary results on a pilot study.

  14. Life Support Systems Microbial Challenges

    NASA Technical Reports Server (NTRS)

    Roman, Monsi C.

    2010-01-01

    Many microbiological studies were performed during the development of the Space Station Water Recovery and Management System from1990-2009. Studies include assessments of: (1) bulk phase (planktonic) microbial population (2) biofilms, (3) microbially influenced corrosion (4) biofouling treatments. This slide presentation summarizes the studies performed to assess the bulk phase microbial community during the Space Station Water Recovery Tests (WRT) from 1990 to 1998. This report provides an overview of some of the microbiological analyses performed during the Space Station WRT program. These tests not only integrated several technologies with the goal of producing water that met NASA s potable water specifications, but also integrated humans, and therefore human flora into the protocols. At the time these tests were performed, not much was known (or published) about the microbial composition of these types of wastewater. It is important to note that design changes to the WRS have been implemented over the years and results discussed in this report might be directly related to test configurations that were not chosen for the final flight configuration. Results microbiological analyses performed Conclusion from the during the WRT showed that it was possible to recycle water from different sources, including urine, and produce water that can exceed the quality of municipally produced water.

  15. Pressure vessel sliding support unit and system using the sliding support unit

    DOEpatents

    Breach, Michael R.; Keck, David J.; Deaver, Gerald A.

    2013-01-15

    Provided is a sliding support and a system using the sliding support unit. The sliding support unit may include a fulcrum capture configured to attach to a support flange, a fulcrum support configured to attach to the fulcrum capture, and a baseplate block configured to support the fulcrum support. The system using the sliding support unit may include a pressure vessel, a pedestal bracket, and a plurality of sliding support units.

  16. Development of pre pre-driver amplifier stage for generator of SST-1 ICRH system

    NASA Astrophysics Data System (ADS)

    Kumar, Sunil; Sinh Makwana, Azad; Srinivas, Y. S. S.; Kulkarni, S. V.; ICRH-RF Group

    2010-02-01

    The Ion Cyclotron Resonance Heating (ICRH) system for SST1 consists mainly of the cwrf power generator to deliver 1.5MW for 1000sec duration at the frequencies 22.8, 24.3 and 45.6±1MHz, the transmission line and the antenna. This is planned to develop a independent and dedicated cwrf generator that consists of a oscillator, buffer, rf switch, modulator, rf attenuator, directional coupler, three stage solid state low power amplifier and four stage triode & tetrode based high power amplifier with specific performance at 45.6±1MHz including frequencies 22.8 and 24.3±1MHz. The pre pre-driver high power amplifier stage is fabricated about triode 3CX3000A7. The tube has sufficient margin in terms of plate dissipation and grid dissipation that makes it suitable to withstand momentarily load mismatch and to upgrade the source in terms of output power later. This indigenously developed amplifier is integrated inside a radiation resistant rack with all required biasing power supplies, cooling blower, controls, monitors and interlocks for manual or remote control operation. This grounded grid mode amplifier will be operated at plate with 3.8KV/ 800mA in class AB for 1.8KW cwrf output power rating. The input circuit is broadband and the output circuit is tunable with slide variable inductor and a vacuum variable capacitor in the frequency range of 22.8 to 45.6MHz. It is designed for a gain of about 12dB, fabrication completed and undergoing cwrf power testing. This paper presents specifications, design criteria, circuit used, operating parameters, tests conducted and the results obtained.

  17. Learning to Control Advanced Life Support Systems

    NASA Technical Reports Server (NTRS)

    Subramanian, Devika

    2004-01-01

    Advanced life support systems have many interacting processes and limited resources. Controlling and optimizing advanced life support systems presents unique challenges. In particular, advanced life support systems are nonlinear coupled dynamical systems and it is difficult for humans to take all interactions into account to design an effective control strategy. In this project. we developed several reinforcement learning controllers that actively explore the space of possible control strategies, guided by rewards from a user specified long term objective function. We evaluated these controllers using a discrete event simulation of an advanced life support system. This simulation, called BioSim, designed by Nasa scientists David Kortenkamp and Scott Bell has multiple, interacting life support modules including crew, food production, air revitalization, water recovery, solid waste incineration and power. They are implemented in a consumer/producer relationship in which certain modules produce resources that are consumed by other modules. Stores hold resources between modules. Control of this simulation is via adjusting flows of resources between modules and into/out of stores. We developed adaptive algorithms that control the flow of resources in BioSim. Our learning algorithms discovered several ingenious strategies for maximizing mission length by controlling the air and water recycling systems as well as crop planting schedules. By exploiting non-linearities in the overall system dynamics, the learned controllers easily out- performed controllers written by human experts. In sum, we accomplished three goals. We (1) developed foundations for learning models of coupled dynamical systems by active exploration of the state space, (2) developed and tested algorithms that learn to efficiently control air and water recycling processes as well as crop scheduling in Biosim, and (3) developed an understanding of the role machine learning in designing control systems for advanced life support.

  18. Intelligent speed adaptation--effects and acceptance by young inexperienced drivers.

    PubMed

    Young, Kristie L; Regan, Michael A; Triggs, Thomas J; Jontof-Hutter, Keren; Newstead, Stuart

    2010-05-01

    This study assessed the relative effects of two intelligent speed adaptation (ISA) systems (informative and actively supporting) on simulated driving performance and acceptability in a sample of inexperienced and experienced drivers. Participants drove a series of simulated drives under three conditions: no ISA (control), ISA informative and ISA actively supporting. The informative system significantly reduced speed and was particularly effective in reducing top-end speeds. Comparable reductions were not found for the actively supporting system. Differences in the effectiveness and acceptability of ISA systems were noted across experienced and inexperienced drivers. The ISA systems appeared more effective at reducing speeds for experienced drivers on some road types. Experienced drivers' subjective satisfaction ratings of the systems also remained constant over the trial, whereas the inexperienced drivers' ratings changed after experience. There was little evidence that drivers engaged in negative behavioral adaptation and no evidence that subjective workload levels increased with ISA use. Future directions for examining the safety benefits of ISA, particularly for inexperienced drivers, are discussed. PMID:20380923

  19. Intersection assistance: a safe solution for older drivers?

    PubMed

    Dotzauer, Mandy; Caljouw, Simone R; de Waard, Dick; Brouwer, Wiebo H

    2013-10-01

    Within the next few decades, the number of older drivers operating a vehicle will increase rapidly (Eurostat, 2011). As age increases so does physical vulnerability, age-related impairments, and the risk of being involved in a fatal crashes. Older drivers experience problems in driving situations that require divided attention and decision making under time pressure as reflected by their overrepresentation in at-fault crashes on intersections. Advanced Driver Assistance Systems (ADAS) especially designed to support older drivers crossing intersections might counteract these difficulties. In a longer-term driving simulator study, the effects of an intersection assistant on driving were evaluated. 18 older drivers (M=71.44 years) returned repeatedly completing a ride either with or without a support system in a driving simulator. In order to test the intersection assistance, eight intersections were depicted for further analyses. Results show that ADAS affects driving. Equipped with ADAS, drivers allocated more attention to the road center rather than the left and right, crossed intersections in shorter time, engaged in higher speeds, and crossed more often with a critical time-to-collision (TTC) value. The implications of results are discussed in terms of behavioral adaptation and safety. PMID:23954686

  20. Interactive Authoring Support for Adaptive Educational Systems

    E-print Network

    Brusilovsky, Peter

    Interactive Authoring Support for Adaptive Educational Systems Peter Brusilovsky, Sergey Sosnovsky-known challenge of adaptive educational systems is the need to develop intelligent content, which is very time and the identification of a prerequisite/outcome structure for the course. The resulting sequence of adaptive activities

  1. A Novel Mechatronic Body Weight Support System

    Microsoft Academic Search

    Martin Frey; Gery Colombo; Martino Vaglio; Rainer Bucher; Matthias Jörg; Robert Riener

    2006-01-01

    A novel mechatronic body weight support (BWS) system has been developed to provide precise body weight unloading for patients with neurological or other impairments during treadmill training. The system is composed of a passive elastic spring element to take over the main unloading force and an active closed-loop controlled electric drive to generate the exact desired force. Both force generating

  2. 1991 NASA Life Support Systems Analysis workshop

    NASA Technical Reports Server (NTRS)

    Evanich, Peggy L.; Crabb, Thomas M.; Gartrell, Charles F.

    1992-01-01

    The 1991 Life Support Systems Analysis Workshop was sponsored by NASA Headquarters' Office of Aeronautics and Space Technology (OAST) to foster communication among NASA, industrial, and academic specialists, and to integrate their inputs and disseminate information to them. The overall objective of systems analysis within the Life Support Technology Program of OAST is to identify, guide the development of, and verify designs which will increase the performance of the life support systems on component, subsystem, and system levels for future human space missions. The specific goals of this workshop were to report on the status of systems analysis capabilities, to integrate the chemical processing industry technologies, and to integrate recommendations for future technology developments related to systems analysis for life support systems. The workshop included technical presentations, discussions, and interactive planning, with time allocated for discussion of both technology status and time-phased technology development recommendations. Key personnel from NASA, industry, and academia delivered inputs and presentations on the status and priorities of current and future systems analysis methods and requirements.

  3. Decision support system for nursing management control

    SciTech Connect

    Ernst, C.J.

    1983-01-01

    A knowledge representation approach for expert systems supporting decision processes in business is proposed. A description of a knowledge representation schema using a logic programming metalanguage is described, then the role of such a schema in a management expert system is demonstrated through the problem of nursing management control in hospitals. 18 references.

  4. Collaborative Design Supporting System for Manufacturing Systems

    NASA Astrophysics Data System (ADS)

    Nakano, Masaru; Sato, Shuichi; Arai, Eiji

    Global competition forces industrial companies to reduce cost and time to develop new manufacturing systems. To achieve this goal, collaborative design projects will be more popular among different companies or divisions. The design knowledge, however, is usually not well organized or archived in a digital form. This paper proposes a design agent system to navigate engineers in the design process of manufacturing systems. The design agents digitally model design processes itself, parameters for each design activity, engineering tools and rational logic rules. The design agents communicate with each other to help manufacturing system designers on distributed sites in the collaborative design processes online. In this paper, the structure, roles, and functions of the design agents are discussed. The proposed design agent system is implemented using JAVA programming language.

  5. 49 CFR 383.71 - Driver application procedures.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ...the State of issuance the information required to be included...he/she does not have a driver's license from more than...certified” on the Commercial Driver's License Information System (CDLIS) driver record for the...

  6. Alisse : Advanced life support system evaluator

    Microsoft Academic Search

    Jean Brunet; Olivier Gerbi; Philippe André; Elisabeth Davin; Raul Avezuela Rodriguez; Fernando Carbonero; Emilia Soumalainen; Christophe Lasseur

    2010-01-01

    Long duration missions, such as the establishment of permanent bases on the lunar surface or the travel to Mars, require such an amount of life support consumables (e.g. food, water and oxygen) that direct supply or re-supply from Earth is not an option anymore. Regenerative Life Support Systems are therefore necessary to sustain long-term manned space mission to increase recycling

  7. Lunar Surface Systems Supportability Technology Development Roadmap

    NASA Technical Reports Server (NTRS)

    Oeftering, Richard C.; Struk, Peter M.; Green, Jennifer L.; Chau, Savio N.; Curell, Philip C.; Dempsey, Cathy A.; Patterson, Linda P.; Robbins, William; Steele, Michael A.; DAnnunzio, Anthony; Meseroll, Robert; Quiter, John; Shannon, Russell; Easton, John W.; Madaras, Eric I.; BrownTaminger, Karen M.; Tabera, John T.; Tellado, Joseph; Williams, Marth K.; Zeitlin, Nancy P.

    2011-01-01

    The Lunar Surface Systems Supportability Technology Development Roadmap is a guide for developing the technologies needed to enable the supportable, sustainable, and affordable exploration of the Moon and other destinations beyond Earth. Supportability is defined in terms of space maintenance, repair, and related logistics. This report considers the supportability lessons learned from NASA and the Department of Defense. Lunar Outpost supportability needs are summarized, and a supportability technology strategy is established to make the transition from high logistics dependence to logistics independence. This strategy will enable flight crews to act effectively to respond to problems and exploit opportunities in an environment of extreme resource scarcity and isolation. The supportability roadmap defines the general technology selection criteria. Technologies are organized into three categories: diagnostics, test, and verification; maintenance and repair; and scavenge and recycle. Furthermore, "embedded technologies" and "process technologies" are used to designate distinct technology types with different development cycles. The roadmap examines the current technology readiness level and lays out a four-phase incremental development schedule with selection decision gates. The supportability technology roadmap is intended to develop technologies with the widest possible capability and utility while minimizing the impact on crew time and training and remaining within the time and cost constraints of the program.

  8. Highway 61 Revisited: Finding Drivers for Hypoxia in Aquatic Systems in the Mississippi Alluvial Plain

    NASA Astrophysics Data System (ADS)

    Shields, F., Jr.; Murdock, J. N.; Lizotte, R. E., Jr.; Knight, S. S.; Locke, M. A.; Testa, S., III

    2011-12-01

    Streams and lakes in the intensively cultivated Mississippi River alluvial plain frequently experience periods of hypoxia that are evidence of ecological stress. Although hydrologic perturbations and sediments and nutrients derived from nonpoint sources are likely drivers of these conditions, the most efficient pathway for obtaining partial ecological recovery (e.g., N load reduction or P load reduction or flow augmentation or erosion control) is not clear. To gain deeper understanding of these systems, three similar ~20 km2 watersheds in northwestern Mississippi were selected for study and instrumented for collection of hydrologic and water quality data in 2011. Aquatic systems within each watershed consisted of shallow natural lakes embedded in networks of sporadically flowing ditches, natural channels and wetlands, with hydrology strongly impacted by irrigation withdrawals from groundwater and return flows to surface water bodies. Waters were usually turbid, with mean Secchi disk readings 10-15 cm and mean suspended solids concentrations 200-600 mg/L. Strong diurnal fluctuations in dissolved oxygen concentration (DO) occurred even in the wetter, cooler winter months, with up to 50% of daily means below state standards (5 mg/L). The average diurnal range (daily max-daily min) in DO varied from 0.9 to 2.5 mg/L for lakes and from 1.7 to 6.0 mg/L for channels. Attendant extreme diurnal variations in temperature and pH were also observed. Observations of chlorophyll a concentrations, water column phytoplankton, and attached algae indicate the importance of algal photosynthesis and respiration to DO levels, but these processes are limited by light availability and N and P concentrations in a complex fashion. Light levels are governed by channel width, water depth and turbidity, which is due to suspended sediment and algae. Preliminary nutrient limitation studies showed both N and P limit algal growth, and microbial production and respiration. N and N+P co-limitation dominated over P limitation. Microbial nutrient limitation differed by habitat type with nutrient stimulation greater in channel habitats than in lakes. Indeed, all types of temporal variation were inversely related to water depth and volume, with lakes manifesting more stable chemistry than shallower channels. These data collections are planned for five more years, with intentional manipulation of one watershed during year three.

  9. Using Visualization in Cockpit Decision Support Systems

    SciTech Connect

    Aragon, Cecilia R.

    2005-07-01

    In order to safely operate their aircraft, pilots must makerapid decisions based on integrating and processing large amounts ofheterogeneous information. Visual displays are often the most efficientmethod of presenting safety-critical data to pilots in real time.However, care must be taken to ensure the pilot is provided with theappropriate amount of information to make effective decisions and notbecome cognitively overloaded. The results of two usability studies of aprototype airflow hazard visualization cockpit decision support systemare summarized. The studies demonstrate that such a system significantlyimproves the performance of helicopter pilots landing under turbulentconditions. Based on these results, design principles and implicationsfor cockpit decision support systems using visualization arepresented.

  10. State Driver Information Name: ____________________________________________

    E-print Network

    Rubloff, Gary W.

    State Driver Information Name: ____________________________________________ Address: ______________________________________ Driver's License #: ________________________/ State: ____ Your Department #: ______________________________ Vehicle #1: State Vehicle Information License Plate Number: _______________________________ Vehicle Number

  11. 76 FR 34635 - Medical Certification Requirements as Part of the Commercial Driver's License (CDL); Extension of...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-14

    ...certificate data on the Commercial Driver's License Information System (CDLIS) driver record. This proposed rule would...driver qualification file the following information before allowing the driver to operate a CMV: * * * * *...

  12. Ion Thruster Support and Positioning System

    NASA Technical Reports Server (NTRS)

    Haag, Thomas W. (Inventor)

    1996-01-01

    A system for supporting and selectively positioning an ion thruster relative to a surface of a spacecraft includes three angularly spaced thruster support assemblies. Each thruster support assembly includes a frame which has a rotary actuator mounted thereon. The rotary actuator is connected to an actuator member which is rotatably connected to a thruster attachment member connected to a body of the thruster. A stabilizer member is rotatably mounted to the frame and to the thruster attachment member. The thruster is selectively movable in the pitch and yaw directions responsive to movement of the actuator members by the actuators on the thruster support assemblies. A failure of any one actuator on a thruster support assembly will generally still enable limited thruster positioning capability in two directions. In a retracted position the thruster attachment members are held in nested relation in saddles supported on the frames of the thruster support assemblies. The thruster is securely held in the retracted position during periods of high loading such as during launch of the spacecraft.

  13. Ion Thruster Support and Positioning System

    NASA Technical Reports Server (NTRS)

    Haag, Thomas W. (Inventor)

    1998-01-01

    A system for supporting and selectively positioning an ion thruster relative to a surface of a spacecraft includes three angularly spaced thruster support assemblies. Each thruster support assembly includes a frame which has a rotary actuator mounted thereon. The rotary actuator is connected to an actuator member which is rotatably connected to a thruster attachment member connected to a body of the thruster. A stabilizer member is rotatably mounted to the frame and to the thruster attachment member. The thruster is selectively movable in the pitch and yaw directions responsive to movement of the actuator members by the actuators on the thruster support assemblies. A failure of any one actuator on a thruster support assembly will generally still enable limited thruster positioning capability in two directions. In a retracted position the thruster attachment members are held in nested relation in saddles supported on the frames of the thruster support assemblies. The thruster is securely held in the retracted position during periods of high loading such as during launch of the spacecraft.

  14. 45 CFR 307.5 - Mandatory computerized support enforcement systems.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...Mandatory computerized support enforcement systems. 307.5 Section 307.5 Public...SERVICES COMPUTERIZED SUPPORT ENFORCEMENT SYSTEMS § 307.5 Mandatory computerized support enforcement systems. (a) Basic requirement....

  15. 45 CFR 307.5 - Mandatory computerized support enforcement systems.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...Mandatory computerized support enforcement systems. 307.5 Section 307.5 Public...SERVICES COMPUTERIZED SUPPORT ENFORCEMENT SYSTEMS § 307.5 Mandatory computerized support enforcement systems. (a) Basic requirement....

  16. 45 CFR 307.5 - Mandatory computerized support enforcement systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...Mandatory computerized support enforcement systems. 307.5 Section 307.5 Public...SERVICES COMPUTERIZED SUPPORT ENFORCEMENT SYSTEMS § 307.5 Mandatory computerized support enforcement systems. (a) Basic requirement....

  17. Birds of a Feather: Supporting Secure Systems

    SciTech Connect

    Braswell III, H V

    2006-04-24

    Over the past few years Lawrence Livermore National Laboratory has begun the process of moving to a diskless environment in the Secure Computer Support realm. This movement has included many moving targets and increasing support complexity. We would like to set up a forum for Security and Support professionals to get together from across the Complex and discuss current deployments, lessons learned, and next steps. This would include what hardware, software, and hard copy based solutions are being used to manage Secure Computing. The topics to be discussed include but are not limited to: Diskless computing, port locking and management, PC, Mac, and Linux/UNIX support and setup, system imaging, security setup documentation and templates, security documentation and management, customer tracking, ticket tracking, software download and management, log management, backup/disaster recovery, and mixed media environments.

  18. Fast, versatile pockels cell driver

    Microsoft Academic Search

    J. A. Oicles; D. C. Downs; D. J. Kuizenga

    1981-01-01

    Vacuum planar triodes, normally used in S-Band radar applications, can also serve as excellent switch tubes in fast, low jitter pulse generators. Laser systems have need of such generators for driving Pockels cells. Development work in this area has resulted in three successive driver designs. The present two-chassis unit will serve as a standard driver in the Nova and Novette

  19. A Vision-Based Driver Nighttime Assistance and Surveillance System Based on Intelligent Image Sensing Techniques and a Heterogamous Dual-Core Embedded System Architecture

    PubMed Central

    Chen, Yen-Lin; Chiang, Hsin-Han; Chiang, Chuan-Yen; Liu, Chuan-Ming; Yuan, Shyan-Ming; Wang, Jenq-Haur

    2012-01-01

    This study proposes a vision-based intelligent nighttime driver assistance and surveillance system (VIDASS system) implemented by a set of embedded software components and modules, and integrates these modules to accomplish a component-based system framework on an embedded heterogamous dual-core platform. Therefore, this study develops and implements computer vision and sensing techniques of nighttime vehicle detection, collision warning determination, and traffic event recording. The proposed system processes the road-scene frames in front of the host car captured from CCD sensors mounted on the host vehicle. These vision-based sensing and processing technologies are integrated and implemented on an ARM-DSP heterogamous dual-core embedded platform. Peripheral devices, including image grabbing devices, communication modules, and other in-vehicle control devices, are also integrated to form an in-vehicle-embedded vision-based nighttime driver assistance and surveillance system. PMID:22736956

  20. Model implementation for dynamic computation of system cost for advanced life support.

    PubMed

    Levri, J A; Vaccari, D A

    2004-01-01

    Life support system designs for long-duration space missions have a multitude of requirements drivers, such as mission objectives, political considerations, cost, crew wellness, inherent mission attributes, as well as many other influences. Evaluation of requirements satisfaction can be difficult, particularly at an early stage of mission design. Because launch cost is a critical factor and relatively easy to quantify, it is a point of focus in early mission design. The method used to determine launch cost influences the accuracy of the estimate. This paper discusses the appropriateness of dynamic mission simulation in estimating the launch cost of a life support system. This paper also provides an abbreviated example of a dynamic simulation life support model and possible ways in which such a model might be utilized for design improvement. PMID:15846883

  1. Supporting Classroom Activities with the BSUL System

    Microsoft Academic Search

    Hiroaki Ogata; Nobuji A. Saito; Rosa G. J. Paredes; Gerardo Ayala San Martin; Yoneo Yano

    2008-01-01

    This paper presents the integration of ubiquitous computing systems into classroom settings, in order to provide basic support for classrooms and field activities. We have developed web application components using Java technology and configured a classroom with wireless network access and a web camera for our purposes. In this classroom, the students interact among each other and with the professor

  2. A Decision Support System for Port Planning

    Microsoft Academic Search

    Henry S. L. Fan

    2002-01-01

    Globalisation has generated more shipping traffic and congestion at some seaports. The sea space capacity of a port is important to planning and operation. To assist in port planning, we present a decision support system. It has an interactive interface to facilitate entry and editing of data which include information for developing a sea space network, operational procedures, traffic pattern,

  3. Decision Support Systems: Information, Technology, and People.

    ERIC Educational Resources Information Center

    Penrod, James I.; McManus, John F.

    1982-01-01

    Pepperdine University's decision support system provides: (1) user access to data through terminals; (2) the availability of retrieval modules and languages that allow the managers to structure ad hoc reports; (3) access to models through a national network; and (4) training, encouragement and consultation through coordinators. (Author/MLW)

  4. Geographic Information System Resources to Support

    E-print Network

    Geographic Information System Resources to Support Biomass/Bioenergy/Biofuel Decision Making Hawaii Natural Energy Institute Abstract The Hawaii Natural Energy Institute assessed potential biomass/bioenergy/biofuel for both sugar and fiber, and algae for oil or other intermediate products. The objective of this report

  5. Ham Tries Out His Life Support System

    NASA Technical Reports Server (NTRS)

    1961-01-01

    Ham tries out his combination couch and life support system in preparation for his flight in Mercury Redstone-2 (MR-2). The couch is plugged into the circuit that normally would supply the astronaut's full pressure suit. The MR-2 flight was one in a series of flights that led to the manned orbital flights of NASA's Project Mercury program.

  6. DECISION SUPPORT SYSTEM FOR RESEARCH FUNDING TYPE

    EPA Science Inventory

    The paper reports the results of the first 2 years of a 3-year effort in developing a decision support system for considering inhouse vs. extramural funding of projects in government research and development organizations. The first year's effort concentrated on developing a prel...

  7. Supporting Classroom Activities with the BSUL System

    ERIC Educational Resources Information Center

    Ogata, Hiroaki; Saito, Nobuji A.; Paredes J., Rosa G.; San Martin, Gerardo Ayala; Yano, Yoneo

    2008-01-01

    This paper presents the integration of ubiquitous computing systems into classroom settings, in order to provide basic support for classrooms and field activities. We have developed web application components using Java technology and configured a classroom with wireless network access and a web camera for our purposes. In this classroom, the…

  8. Movement support system for electric wheelchair

    Microsoft Academic Search

    Eiji Takahashi; Tooru Nogai

    1998-01-01

    An electric wheelchair can be moved on controlling the motors attached to wheel shaft by operating joystick lever located by the hand. This requires great skill. Therefore we construct a support system which makes electric wheelchair easy to operate and move safely, giving priority to the intentions of the operator even if the operator is heavily handicapped, weak, or incapable

  9. A Personal Multimedia System for Instructional Support.

    ERIC Educational Resources Information Center

    Snyder, Robin M.

    This paper presents a specific bottom-up implementation method for getting started with multimedia for instructional support at the personal level. Some minimal top-down design considerations for an institutional multimedia system include: (1) the instructor should be able to take work from/to the desktop to/from the classroom; (2) the capability…

  10. Environmental Control and Life Support System

    NASA Technical Reports Server (NTRS)

    Ray, Charles; Adams, Alan

    1990-01-01

    Viewgraphs on the Environmental Control and Life Support System (ECLSS) for the space station are presented. The ECLSS is divided into six subsystems: temperature and humidity control (THC), atmosphere control and supply (ACS), atmosphere revitalization (AR), fire detection and suppression (FDS), water recovery management (WRM), and waste management (WM). Topics covered include: ECLSS subsystem functions; ECLSS distributed system; ECLSS functional distribution; CO2 removal; CO2 reduction; oxygen generation; urine processor; and potable water recovery.

  11. Regenerative life support system research and concepts

    NASA Technical Reports Server (NTRS)

    1988-01-01

    Life support systems that involve recycling of atmospheres, water, food and waste are so complex that models incorporating all the interactions and relationships are vital to design, development, simulations, and ultimately to control of space qualified systems. During early modeling studies, FORTRAN and BASIC programs were used to obtain numerical comparisons of the performance of different regenerative concepts. Recently, models were made by combining existing capabilities with expert systems to establish an Intelligent Design Support Environment for simpliflying user interfaces and to address the need for the engineering aspects. Progress was also made toward modeling and evaluating the operational aspects of closed loop life support systems using Time-step and Dynamic simulations over a period of time. Example models are presented which show the status and potential of developed modeling techniques. For instance, closed loop systems involving algae systeMs for atmospheric purification and food supply augmentation, plus models employing high plants and solid waste electrolysis are described and results of initial evaluations are presented.

  12. ELSEVIER Decision Support Systems 14 (1995) 369-391 Decion Support

    E-print Network

    Kraus, Sarit

    1995-01-01

    ELSEVIER Decision Support Systems 14 (1995) 369-391 Decion Support By m,q GENIE: A decision support. for Advanced Computer Studies, Uni~ersiO' ~sflMarylund. College Park, MD 20742 USA Abstract Decision support situations. This paper demonstrates the ability of one such decision support system, GENIE, to help decision

  13. A Transportation Review Keeps Your Board in the Driver's Seat.

    ERIC Educational Resources Information Center

    Ponessa, Joan M.

    1987-01-01

    Demonstrates that school board members should periodically review their student transportation system to ensure safety, good drivers, and community support of schools. Describes how administrators gain operational understanding through field review and reporting their findings. Discusses data interpretation and application. Planning for community…

  14. Systems modelling of a driver information system - automotive industry case study

    Microsoft Academic Search

    Arun Chakrapani Rao; Gunwant Dhadyalla; R. Peter Jones; Ross McMurran

    2006-01-01

    This paper describes work done at the IARC, in collaboration with an automotive original equipment manufacturer (OEM) and suppliers, in the project systems modelling language (SysML) for automotive software development and integration. The OEM is interested in how a SysML model could supplement or even replace paper specifications whereas the suppliers are more interested in finding how the resulting SysML

  15. Resonant acoustic transducer and driver system for a well drilling string communication system

    DOEpatents

    Chanson, Gary J. (Weston, MA); Nicolson, Alexander M. (Concord, MA)

    1981-01-01

    The acoustic data communication system includes an acoustic transmitter and receiver wherein low frequency acoustic waves, propagating in relatively loss free manner in well drilling string piping, are efficiently coupled to the drill string and propagate at levels competitive with the levels of noise generated by drilling machinery also present in the drill string. The transmitting transducer incorporates a mass-spring piezoelectric transmitter and amplifier combination that permits self-oscillating resonant operation in the desired low frequency range.

  16. Web-Based Learning Support System

    NASA Astrophysics Data System (ADS)

    Fan, Lisa

    Web-based learning support system offers many benefits over traditional learning environments and has become very popular. The Web is a powerful environment for distributing information and delivering knowledge to an increasingly wide and diverse audience. Typical Web-based learning environments, such as Web-CT, Blackboard, include course content delivery tools, quiz modules, grade reporting systems, assignment submission components, etc. They are powerful integrated learning management systems (LMS) that support a number of activities performed by teachers and students during the learning process [1]. However, students who study a course on the Internet tend to be more heterogeneously distributed than those found in a traditional classroom situation. In order to achieve optimal efficiency in a learning process, an individual learner needs his or her own personalized assistance. For a web-based open and dynamic learning environment, personalized support for learners becomes more important. This chapter demonstrates how to realize personalized learning support in dynamic and heterogeneous learning environments by utilizing Adaptive Web technologies. It focuses on course personalization in terms of contents and teaching materials that is according to each student's needs and capabilities. An example of using Rough Set to analyze student personal information to assist students with effective learning and predict student performance is presented.

  17. Using Visualization in Cockpit Decision Support Systems

    NASA Technical Reports Server (NTRS)

    Aragon, Cecilia R.

    2005-01-01

    In order to safely operate their aircraft, pilots must make rapid decisions based on integrating and processing large amounts of heterogeneous information. Visual displays are often the most efficient method of presenting safety-critical data to pilots in real time. However, care must be taken to ensure the pilot is provided with the appropriate amount of information to make effective decisions and not become cognitively overloaded. The results of two usability studies of a prototype airflow hazard visualization cockpit decision support system are summarized. The studies demonstrate that such a system significantly improves the performance of helicopter pilots landing under turbulent conditions. Based on these results, design principles and implications for cockpit decision support systems using visualization are presented.

  18. Johnson Space Center's Regenerative Life Support Systems Test Bed

    Microsoft Academic Search

    D. J. Barta; D. L. Henninger

    1996-01-01

    The Regenerative Life Support Systems (RLSS) Test Bed at NASA's Johnson Space Center is an atmospherically closed, controlled environment facility for human testing of regenerative life support systems using higher plants in conjunction with physicochemical life support systems. The facility supports NASA's Advanced Life Support (ALS) Program. The facility is comprised of two large scale plant growth chambers, each with

  19. Supporting multiple control systems at Fermilab

    SciTech Connect

    Nicklaus, Dennis J.; /Fermilab

    2009-10-01

    The Fermilab control system, ACNET, is used for controlling the Tevatron and all of its pre-accelerators. However, other smaller experiments at Fermilab have been using different controls systems, in particular DOOCS and EPICS. This paper reports some of the steps taken at Fermilab to integrate support for these outside systems. We will describe specific tools that we have built or adapted to facilitate interaction between the architectures. We also examine some of the difficulties that arise from managing this heterogeneous environment. Incompatibilities as well as common elements will be described.

  20. DRIVER DISTRACTION: A REVIEW OF THE LITERATURE

    Microsoft Academic Search

    Kristie Young; Michael Regan; Mike Hammer

    Approximately one quarter of vehicle crashes in the United States are estimated to result from the driver being inattentive, or distracted. As more wireless communication, entertainment and driver assistance systems proliferate the vehicle market, the incidence of distraction-related crashes is expected to escalate. In North America, Europe and Japan, driver distraction is a priority issue in road safety. However, the

  1. Driver Magician Lite 3.5

    NSDL National Science Digital Library

    2009-04-19

    While Driver Magician Lite is quite simple in its layout, it is still an effective tool for persons looking to back up their device drivers. The application identifies all the hardware in the system, extracts their associated drivers from the hard disk, and them backs them up to any designated location. Also, Driver Magician Lite will also detect unknown devices. This version is compatible with Windows 98 and newer.

  2. 45 CFR 307.5 - Mandatory computerized support enforcement systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...an operational computerized support enforcement system, which...improve the State's Child Support Enforcement program. ...disapproval is a final administrative decision and is not subject to administrative...FFP for costs of computerized support enforcement systems....

  3. Driver assistance system for passive multi-trailer vehicles with haptic steering limitations on the leading unit.

    PubMed

    Morales, Jesús; Mandow, Anthony; Martínez, Jorge L; Reina, Antonio J; García-Cerezo, Alfonso

    2013-01-01

    Driving vehicles with one or more passive trailers has difficulties in both forward and backward motion due to inter-unit collisions, jackknife, and lack of visibility. Consequently, advanced driver assistance systems (ADAS) for multi-trailer combinations can be beneficial to accident avoidance as well as to driver comfort. The ADAS proposed in this paper aims to prevent unsafe steering commands by means of a haptic handwheel. Furthermore, when driving in reverse, the steering-wheel and pedals can be used as if the vehicle was driven from the back of the last trailer with visual aid from a rear-view camera. This solution, which can be implemented in drive-by-wire vehicles with hitch angle sensors, profits from two methods previously developed by the authors: safe steering by applying a curvature limitation to the leading unit, and a virtual tractor concept for backward motion that includes the complex case of set-point propagation through on-axle hitches. The paper addresses system requirements and provides implementation details to tele-operate two different off- and on-axle combinations of a tracked mobile robot pulling and pushing two dissimilar trailers. PMID:23552102

  4. Light Machines Operator Performance Support System

    SciTech Connect

    Bohley, M.C.

    1998-06-15

    The objective of this project was to create a multimedia operator performance support system (OPSS) shell that would provide a framework for delivering appropriate information to the student/novice machine tool user just when needed and in the most appropriate form. In addition, the program was designed so that it could be expanded and further developed by Light Machines personnel. The expertise of AlliedSignal Federal Manufacturing and Technologies (ASFM and T) in the areas of performance support system design and multimedia creation was employed to create the most user-friendly graphical user interface (GUI) while providing access to key topical areas. Light Machines provided a subject matter expert from their technical services group in order to provide the needed information for structuring the OPSS shell. They also provided a Benchman VMC 4000 machine tool at the ASFM and T New Mexico location as well as specific instruction on the safe and effective use of that machine tool.

  5. Advanced technologies to support earth orbiting systems

    NASA Technical Reports Server (NTRS)

    Rosen, Robert; Johnston, Gordon I.

    1992-01-01

    Within NASA, the Office of Aeronautics and Space Technology (OAST) is conducting a major, ongoing engineering research and technology program directed toward the support of future programs, with a major focus on technology for future space science missions. OAST is conducting a substantial effort to identify the technologies required to support the evolution of Mission to Planet Earth. The effort consists of studies, workshops, and technology research programs to explore: (1) new concepts for multisatellite, earth-observing instrumentation and sensor sets; (2) information system advances for continuous and reliable processing of terabit per day data streams; and (3) infrastructure development, including spacecraft bus technology and operations for substantial performance, cost, and reliabiltiy gains. This paper discusses the technological needs of future earth science systems, reviews current and planned activities, and highlights significant achievements in the research and technology program.

  6. Oxygen electrocatalysts for life support systems

    NASA Technical Reports Server (NTRS)

    Ogrady, W. E.; Iwakura, C.; Yeager, E.

    1976-01-01

    The irreversibility of the oxygen electrode increases by 30 to 60 percent the energy required for water electrolysis over the thermodynamic value in life support systems involving conventional water electrolysis cells. To minimize this voltage loss, high area electrocatalysts, such as platinum metal, are often used for the O2 anode, but even so, the losses are still very substantial. In an attempt to find more effective electrocatalysts for this application, a number of defect metal oxides have been examined.

  7. Decision Support System for Catawba River Basin

    Microsoft Academic Search

    Laura H. Z. Weintraub; Larry Olmsted; Carl W. Chen; Robert Goldstein; Gene Vaughan; Steve Johnson; Ty Ziegler; Bill Foris; Andy Brown; Doug Besler; Dave Braatz

    2001-01-01

    WARMF (Watershed Analysis Risk Management Framework) was developed as a decision support system for the entire 12,330 km2 (~5,000 mile2) Catawba River Basin of North and South Carolina. The watershed is divided into a network of land catchments, stream segments, and stratified lakes. WARMF applies daily meteorology data to land catchments to simulate runoff and nonpoint loads. The nonpoint loads

  8. Towards Decentralised Clinical Decision Support Systems

    Microsoft Academic Search

    Paolo Besana; Adam Barker

    \\u000a The sheer quantity and complexity of medical information, even within a single speciality, is beyond the power of one person\\u000a to comprehend. Clinical decision support (CDS) systems have been clearly demonstrated to improve practice by removing complexity\\u000a and aiding the decision making process for clinicians. However, the specific pieces of information most relevant to a particular\\u000a clinical decision are typically

  9. THE WATER STRATEGY MAN DECISION SUPPORT SYSTEM

    Microsoft Academic Search

    Porta S. Donato

    The WaterStrategyMan project aims at supporting Decision Makers and Water Managers in multi-objective planning of water resource systems based on simulation of alternative scenarios of water availability and water demand and the application of problem-specific policy measures. Water strategies and management options, including structural and non-structural interventions, for Supply Enhancement, Demand Management and Institutional Policies are evaluated on the basis

  10. Activation of theMercury Laser System: A Diode-Pumped Solid-State Laser Driver for Inertial Fusion

    SciTech Connect

    Bayramian, A J; Beach, R J; Bibeau, C; Ebbers, C A; Freitas, B L; Kanz, V K; Payne, S A; Schaffers, K I; Skulina, K M; Smith, L K; Tassano, J B

    2001-09-10

    Initial measurements are reported for the Mercury laser system, a scalable driver for rep-rated inertial fusion energy. The performance goals include 10% electrical efficiency at 10 Hz and 100 J with a 2-10 ns pulse length. We report on the first Yb:S-FAP crystals grown to sufficient size for fabricating full size (4 x 6 cm) amplifier slabs. The first of four 160 kW (peak power) diode arrays and pump delivery systems were completed and tested with the following results: 5.5% power droop over a 0.75 ms pulse, 3.95 nm spectral linewidth, far field divergence of 14.0 mrad and 149.5 mrad in the microlensed and unmicrolensed directions respectively, and 83% optical-to-optical transfer efficiency through the pump delivery system.

  11. Bioregenerative life support systems for microgravity

    NASA Technical Reports Server (NTRS)

    Nevill, Gail E., Jr.; Hessel, Michael I., Jr.; Rodriguez, Jose; Morgan, Steve (editor)

    1993-01-01

    NASA's Controlled Ecological Life Support System (CELSS) project centers on growing plants and recycling wastes in space. The current version of the biomass production chamber (BPC) uses a hydroponic system for nutrient delivery. To optimize plant growth and conserve system resources, the content of the nutrient solution which feeds the plants must be constantly monitored. The macro-nutrients (greater than ten ppm) in the solution include nitrogen, phosphorous, potassium, calcium, magnesium, and sulphur; the micro-nutrients (less than ten ppm) include iron, copper, manganese, zinc, and boron. The goal of this project is to construct a computer-controlled system of ion detectors that will accurately measure the concentrations of several necessary ions in solution. The project focuses on the use of a sensor array to eliminate problems of interference and temperature dependence.

  12. Power Management in Regenerative Life Support Systems

    NASA Technical Reports Server (NTRS)

    Crawford, Sekou; Pawlowski, Christopher; Finn, Cory; Mead, Susan C. (Technical Monitor)

    1999-01-01

    Effective management of power can reduce the cost of launch and operation of regenerative life support systems. Variations in power may be quite severe and may manifest as surges or spikes, While the power plant may have some ability to deal with these variations, with batteries for example, over-capacity is expensive and does nothing to address the fundamental issue of excessive demand. Because the power unit must be sized to accommodate the largest demand, avoiding power spikes has the potential to reduce the required size of the power plant while at the same time increasing the dependability of the system. Scheduling of processors can help to reduce potential power spikes. However, not all power-consuming equipment is easily scheduled. Therefore, active power management is needed to further decrease the risk of surges or spikes. We investigate the use of a hierarchical scheme to actively manage power for a model of a regenerative life support system. Local level controllers individually determine subsystem power usage. A higher level controller monitors overall system power and detects surges or spikes. When a surge condition is detected, the higher level controller conducts an 'auction' and describes subsystem power usage to re-allocate power. The result is an overall reduction in total power during a power surge. The auction involves each subsystem making a 'bid' to buy or sell power based on local needs. However, this re-allocation cannot come at the expense of life support function. To this end, participation in the auction is restricted to those processes meeting certain tolerance constraints. These tolerances represent acceptable limits within which system processes can be operated. We present a simulation model and discuss some of our results.

  13. Hail Disrometer Array for Launch Systems Support

    NASA Technical Reports Server (NTRS)

    Lane, John E.; Sharp, David W.; Kasparis, Takis C.; Doesken, Nolan J.

    2008-01-01

    Prior to launch, the space shuttle might be described as a very large thermos bottle containing substantial quantities of cryogenic fuels. Because thermal insulation is a critical design requirement, the external wall of the launch vehicle fuel tank is covered with an insulating foam layer. This foam is fragile and can be damaged by very minor impacts, such as that from small- to medium-size hail, which may go unnoticed. In May 1999, hail damage to the top of the External Tank (ET) of STS-96 required a rollback from the launch pad to the Vehicle Assembly Building (VAB) for repair of the insulating foam. Because of the potential for hail damage to the ET while exposed to the weather, a vigilant hail sentry system using impact transducers was developed as a hail damage warning system and to record and quantify hail events. The Kennedy Space Center (KSC) Hail Monitor System, a joint effort of the NASA and University Affiliated Spaceport Technology Development Contract (USTDC) Physics Labs, was first deployed for operational testing in the fall of 2006. Volunteers from the Community Collaborative Rain. Hail, and Snow Network (CoCoRaHS) in conjunction with Colorado State University were and continue to be active in testing duplicate hail monitor systems at sites in the hail prone high plains of Colorado. The KSC Hail Monitor System (HMS), consisting of three stations positioned approximately 500 ft from the launch pad and forming an approximate equilateral triangle (see Figure 1), was deployed to Pad 39B for support of STS-115. Two months later, the HMS was deployed to Pad 39A for support of STS-116. During support of STS-117 in late February 2007, an unusual hail event occurred in the immediate vicinity of the exposed space shuttle and launch pad. Hail data of this event was collected by the HMS and analyzed. Support of STS-118 revealed another important application of the hail monitor system. Ground Instrumentation personnel check the hail monitors daily when a vehicle is on the launch pad, with special attention after any storm suspected of containing hail. If no hail is recorded by the HMS, the vehicle and pad inspection team has no need to conduct a thorough inspection of the vehicle immediately following a storm. On the afternoon of July 13, 2007, hail on the ground was reported by observers at the VAB, about three miles west of Pad 39A, as well as at several other locations around Kennedy Space Center. The HMS showed no impact detections, indicating that the shuttle had not been damaged by any of the numerous hail events which occurred that day.

  14. IGENPRO knowledge-based operator support system.

    SciTech Connect

    Morman, J. A.

    1998-07-01

    Research and development is being performed on the knowledge-based IGENPRO operator support package for plant transient diagnostics and management to provide operator assistance during off-normal plant transient conditions. A generic thermal-hydraulic (T-H) first-principles approach is being implemented using automated reasoning, artificial neural networks and fuzzy logic to produce a generic T-H system-independent/plant-independent package. The IGENPRO package has a modular structure composed of three modules: the transient trend analysis module PROTREN, the process diagnostics module PRODIAG and the process management module PROMANA. Cooperative research and development work has focused on the PRODIAG diagnostic module of the IGENPRO package and the operator training matrix of transients used at the Braidwood Pressurized Water Reactor station. Promising simulator testing results with PRODIAG have been obtained for the Braidwood Chemical and Volume Control System (CVCS), and the Component Cooling Water System. Initial CVCS test results have also been obtained for the PROTREN module. The PROMANA effort also involves the CVCS. Future work will be focused on the long-term, slow and mild degradation transients where diagnoses of incipient T-H component failure prior to forced outage events is required. This will enhance the capability of the IGENPRO system as a predictive maintenance tool for plant staff and operator support.

  15. Decision support system for drinking water management

    NASA Astrophysics Data System (ADS)

    Janža, M.

    2012-04-01

    The problems in drinking water management are complex and often solutions must be reached under strict time constrains. This is especially distinct in case of environmental accidents in the catchment areas of the wells that are used for drinking water supply. The beneficial tools that can help decision makers and make program of activities more efficient are decision support systems (DSS). In general they are defined as computer-based support systems that help decision makers utilize data and models to solve unstructured problems. The presented DSS was developed in the frame of INCOME project which is focused on the long-term stable and safe drinking water supply in Ljubljana. The two main water resources Ljubljana polje and Barje alluvial aquifers are characterized by a strong interconnection of surface and groundwater, high vulnerability, high velocities of groundwater flow and pollutant transport. In case of sudden pollution, reactions should be very fast to avoid serious impact to the water supply. In the area high pressures arising from urbanization, industry, traffic, agriculture and old environmental burdens. The aim of the developed DSS is to optimize the activities in cases of emergency water management and to optimize the administrative work regarding the activities that can improve groundwater quality status. The DSS is an interactive computer system that utilizes data base, hydrological modelling, and experts' and stakeholders' knowledge. It consists of three components, tackling the different abovementioned issues in water management. The first one utilizes the work on identification, cleaning up and restoration of illegal dumpsites that are a serious threat to the qualitative status of groundwater. The other two components utilize the predictive capability of the hydrological model and scenario analysis. The user interacts with the system by a graphical interface that guides the user step-by-step to the recommended remedial measures. Consequently, the acquisition of information to support the water management's decisions is simplified and faster, thus contributing to more efficient water management and a safer supply of drinking water.

  16. Support system for pathologists and researchers

    PubMed Central

    Ishikawa, Takumi; Takahashi, Junko; Kasai, Mai; Shiina, Takayuki; Iijima, Yuka; Takemura, Hiroshi; Mizoguchi, Hiroshi; Kuwata, Takeshi

    2015-01-01

    Aims: In Japan, cancer is the most prevalent cause of death; the number of patients suffering from cancer is increasing. Hence, there is an increased burden on pathologists to make diagnoses. To reduce pathologists’ burden, researchers have developed methods of auto-pathological diagnosis. However, virtual slides, which are created when glass slides are digitally scanned, saved in a unique format, and it is difficult for researchers to work on the virtual slides for developing their own image processing method. This paper presents the support system for pathologists and researchers who use auto-pathological diagnosis (P-SSD). Main purpose of P-SSD was to support both of pathologists and researchers. P-SSD consists of several sub-functions that make it easy not only for pathologists to screen pathological images, double-check their diagnoses, and reduce unimportant image data but also for researchers to develop and apply their original image-processing techniques to pathological images. Methods: We originally developed P-SSD to support both pathologists and researchers developing auto-pathological diagnoses systems. Current version of P-SSD consists of five main functions as follows: (i) Loading virtual slides, (ii) making a supervised database, (iii) learning image features, (iv) detecting cancerous areas, (v) displaying results of detection. Results: P-SSD reduces computer memory size random access memory utilization and the processing time required to divide the virtual slides into the smaller-size images compared with other similar software. The maximum observed reduction in computer memory size and reduction in processing time is 97% and 99.94%, respectively. Conclusions: Unlike other vendor-developed software, P-SSD has interoperability and is capable of handling virtual slides in several formats. Therefore, P-SSD can support both of pathologists and researchers, and has many potential applications in both pathological diagnosis and research area.

  17. Failure Resilience for Device Drivers

    Microsoft Academic Search

    Jorrit N. Herder; Herbert Bos; Ben Gras; Philip Homburg; Andrew S. Tanenbaum

    2007-01-01

    Studies have shown that device drivers and exten- sions contain 3-7 times more bugs than other operating system code and thus are more likely to fail. Therefore, we present a failure-resilient operating system design that can recover from dead drivers and other critical components—primarily through monitoring and replac- ing malfunctioning components on the fly—transparent to applications and without user intervention.

  18. Controlled Ecological Life Support System: Regenerative Life Support Systems in Space

    NASA Technical Reports Server (NTRS)

    Macelroy, Robert D.; Smernoff, David T.

    1987-01-01

    A wide range of topics related to the extended support of humans in space are covered. Overviews of research conducted in Japan, Europe, and the U.S. are presented. The methods and technologies required to recycle materials, especially respiratory gases, within a closed system are examined. Also presented are issues related to plant and algal productivity, efficiency, and processing methods. Computer simulation of closed systems, discussions of radiation effects on systems stability, and modeling of a computer bioregenerative system are also covered.

  19. An intelligent ground operator support system

    NASA Technical Reports Server (NTRS)

    Goerlach, Thomas; Ohlendorf, Gerhard; Plassmeier, Frank; Bruege, Uwe

    1994-01-01

    This paper presents first results of the project 'Technologien fuer die intelligente Kontrolle von Raumfahrzeugen' (TIKON). The TIKON objective was the demonstration of feasibility and profit of the application of artificial intelligence in the space business. For that purpose a prototype system has been developed and implemented for the operation support of the Roentgen Satellite (ROSAT), a scientific spacecraft designed to perform the first all-sky survey with a high-resolution X-ray telescope and to investigate the emission of specific celestial sources. The prototype integrates a scheduler and a diagnosis tool both based on artificial intelligence techniques. The user interface is menu driven and provides synoptic displays for the visualization of the system status. The prototype has been used and tested in parallel to an already existing operational system.

  20. File System Support for Digital Evidence Bags

    NASA Astrophysics Data System (ADS)

    Richard, Golden; Roussev, Vassil

    Digital Evidence Bags (DEBs) are a mechanism for bundling digital evidence, associated metadata and audit logs into a single structure. DEB-compliant applications can update a DEB's audit log as evidence is introduced into the bag and as data in the bag is processed. This paper investigates native file system support for DEBs, which has a number of benefits over ad hoc modification of digital evidence bags. The paper also describes an API for DEB-enabled applications and methods for providing DEB access to legacy applications through a DEB-aware file system. The paper addresses an urgent need for digital-forensics-aware operating system components that can enhance the consistency, security and performance of investigations.

  1. On-road experiment to assess drivers' detection of roadside targets as a function of headlight system, target placement, and target reflectance.

    PubMed

    Reagan, Ian J; Brumbelow, Matt; Frischmann, Tim

    2015-03-01

    Adaptive headlights swivel with steering input to keep the beams on the roadway as drivers negotiate curves. To assess the effects of this feature on driver's visual performance, a field experiment was conducted at night on a rural, unlit, and unlined two-lane road during which 20 adult participant drivers searched a set of 60 targets. High- (n=30) and low- (n=30) reflectance targets were evenly distributed on straight road sections and on the inside or outside of curves. Participants completed three target detection trials: once with adaptive high-intensity discharge (HID) headlights, once with fixed HID headlights, and once with fixed halogen headlights. Results indicated the adaptive HID headlights helped drivers detect targets that were most difficult to see (low reflectance) at the points in curves found by other researchers to be most crucial for successful navigation (inside apex). For targets placed on straight stretches of road or on the outside of curves, the adaptive feature provided no significant improvement in target detection. However, the pattern of results indicate that HID lamps whether fixed or adaptive improved target detection somewhat, suggesting that part of the real world crash reduction measured for this adaptive system (Highway Loss Data Institute (HLDI), 2012a) may be due to the differences in the light source (HID vs. halogen). Depending on the scenario, the estimated benefits to driver response time associated with the tested adaptive (swiveling HID) headlights ranged from 200 to 380ms compared with the fixed headlight systems tested. PMID:25603548

  2. Knowledge-based systems and NASA's software support environment

    NASA Technical Reports Server (NTRS)

    Dugan, Tim; Carmody, Cora; Lennington, Kent; Nelson, Bob

    1990-01-01

    A proposed role for knowledge-based systems within NASA's Software Support Environment (SSE) is described. The SSE is chartered to support all software development for the Space Station Freedom Program (SSFP). This includes support for development of knowledge-based systems and the integration of these systems with conventional software systems. In addition to the support of development of knowledge-based systems, various software development functions provided by the SSE will utilize knowledge-based systems technology.

  3. Machine Maintenance Integrated Performance Support System

    SciTech Connect

    Bohley, M.C.; Schwartz, M.E.

    1998-03-11

    The objectives of this partnership project were to develop a preventive maintenance checklist program, a troubleshooting system for the Vertical Turning Center (VTC)-5, an on-line manual, and to integrate these components with a custom browser that would run on the VTC-5 machine's controller and would support future internet/intranet delivery. Kingsbury provided subject matter experts from engineering, manufacturing, and technical support. They also provided photographs, schematics, and CAD drawings, which AlliedSignal Federal Manufacturing and Technologies (ASFM and T) digitized for use in the final program. Information from The Kingsbury troubleshooting experts were interviewed regarding symptoms and root causes of system malfunctions This knowledge was captured and from it, fault trees were developed. These trees were then incorporated into the EPSS as a troubleshooting tool. The troubleshooting portion of the system presents simple questions to the machine operator in order to determine the likely cause or causes of malfunctions and then recommends systematic corrective actions. The on-line reference manual, covering operations and maintenance, provides text and illustrations to the machine operator in a traditional structure, but additionally offers the capability to search voluminous amounts of technical data and retrieve specific information on request. The maintenance portion of the EPSS includes checklists that are displayed daily, weekly, monthly, and annually, as appropriate, on the VTC-5 controller screen. The controller software is unavailable for machining parts until the machine tool operator goes through and checks off all of the checklist items. This project provided the team with a detailed understanding of the knowledge and information required to produce and support advanced machine tools. In addition, it resulted in the design and construction of a prototype VTC-5 EPSS containing all the logic and interfaces necessary to integrate operations and maintenance information from other Kingsbury machine tools.

  4. Space transportation system biomedical operations support study

    NASA Technical Reports Server (NTRS)

    White, S. C.

    1983-01-01

    The shift of the Space Transportation System (STS) flight tests of the orbiter vehicle to the preparation and flight of the payloads is discussed. Part of this change is the transition of the medical and life sciences aspects of the STS flight operations to reflect the new state. The medical operations, the life sciences flight experiments support requirements and the intramural research program expected to be at KSC during the operational flight period of the STS and a future space station are analyzed. The adequacy of available facilities, plans, and resources against these future needs are compared; revisions and/or alternatives where appropriate are proposed.

  5. Logistics support system; harmonization enhances multi-national support

    Microsoft Academic Search

    B. E. Scott; A. J. Minei

    2010-01-01

    This Paper examines the evolution of the Harmonization approach for the LM-STAR® Multi-National Support. Critical to the Lockheed Martin Corporation's approach to winning the JSF\\/F35 contract in 2002 was developing a common logistics approach. A strategy was devised for ATE Harmonization whereas all Original Equipment Manufacturers (OEMs) would utilize a common ATE subset solution knowing one day programs developed on

  6. Hollow fiber membrane systems for advanced life support systems

    NASA Technical Reports Server (NTRS)

    Roebelen, G. J., Jr.; Lysaght, M. J.

    1976-01-01

    The practicability of utilizing hollow fiber membranes in vehicular and portable life support system applications is described. A preliminary screening of potential advanced life support applications resulted in the selection of five applications for feasibility study and testing. As a result of the feasibility study and testing, three applications, heat rejection, deaeration, and bacteria filtration, were chosen for breadboard development testing; breadboard hardware was manufactured and tested, and the physical properties of the hollow fiber membrane assemblies are characterized.

  7. Teaching Driver Education Technology to Novice Drivers.

    ERIC Educational Resources Information Center

    Young, Anthony

    A cybernetic unit in driver education was developed to help grade 10 students develop the skills needed to acquire and process driver education information and prepare for the driving phase of driver education in grade 11. Students used a simulator to engage in a series of scenarios designed to promote development of social, behavioral, and mental…

  8. System issues for Controlled Ecological Life Support Systems.

    PubMed

    Eisenberg, J N; Pawlowski, C W; Maszle, D R; Auslander, D M

    1995-01-01

    There are several characteristics of a Controlled Ecological Life Support System that are distinct from commonly engineered systems. These are: 1) the uncertainty, due to limited data availability, and variability due to the heterogeneity of biological subsystems; 2) the closed, ecological nature of the system; and 3) the primary criterion of maximizing the probability of survival. Consequences of these features include: complex dynamics characterized by time scales ranging from milliseconds to months, posing difficult problems with respect to mathematical modeling and predictability; and the necessity for a unique controller design that can translate the high level requirement of survivability to low-level actuator tasks. Future research in the systems and control area should include an ecological perspective focusing on the unique dynamical characteristics of a Controlled Ecological Life Support System. PMID:11538586

  9. Crop candidates for the bioregenerative life support systems in China

    Microsoft Academic Search

    Xu Chunxiao; Liu Hong

    2008-01-01

    The use of plants for life support applications in space is appealing because of the multiple life support functions by the plants. Research on crops that were grown in the life support system to provide food and oxygen, remove carbon dioxide was begun from 1960. To select possible crops for research on the bioregenerative life support systems in China, criteria

  10. Maintenance and repair support system (MARSS)

    NASA Astrophysics Data System (ADS)

    Girolamo, Henry J.; Darty, Mark A.; Wessling, Francis C., III

    1997-06-01

    The Maintenance and Repair Support System (MARSS) is a new, revolutionary platform for mobile computing and communications designed for the soldier operating on the digital battlefield of the future. MARSS is the first major research and development program that addresses the issues of mounting mobile computing apparatus directly onto the human body and represents an important leap forward toward hands free man-machine interface. The goal of the program was to develop a system capable of workstation level performance in a package that fits comfortably with the human body and enhances the user's ability to perform complex tasks that would otherwise require extensive learning and time to accomplish. The MARSS system uses advanced micro-optical displays such as the active matrix electroluminescent image source for near real time video display across a spectrum of rugged technology that can benefit both military and commercial users. The MARSS effort is a Defense Advanced Research Projects Agency program in collaboration with the US Army Soldier Systems Command (SSCOM) executed by McDonnell Douglas under SSCOM contract number DAAK60-95-C2029.

  11. The Driver-Pressure-State-Impact-Response (DPSIR) approach for integrated catchment-coastal zone management: preliminary application to the Po catchment-Adriatic Sea coastal zone system

    Microsoft Academic Search

    N. Pirrone; G. Trombino; S. Cinnirella; A. Algieri; G. Bendoricchio; L. Palmeri

    2005-01-01

    The European Water Policy and, in particular, the Water Framework Directive (WFD) 2000\\/60\\/EC introduced the necessity to evaluate new methodological approaches for the development of Water Management Strategies oriented to support Sustainable Development. In the context of the EUROCAT Project, the Driver-Pressure-State-Impact-Response (DPSIR) framework was identified as a possible analysis framework for the development of management strategies according to the

  12. Creation of closed life support systems

    NASA Astrophysics Data System (ADS)

    Gitelson, I.

    The 40-year-long experience in devising ecological systems with a significantly closed material cycling (CES), which are intended for human life support outside the Earth's biosphere, allows us to state that this problem has been largely solved technically. To test the terrestrial prototypes of these systems: Bios in Krasnoyarsk, the Terrestrial Ecological System (TES) in Moscow, and Bioplex in Houston, crews of humans stayed inside them over long periods of time. In Bios-3 humans could be fully (100%) provided with regenerated air and water and with a vegetable part (80%) of their diet. One human requires 4.5 kW of light energy, which is equal to the light energy incident on an 8-m2 surface perpendicular to solar rays in the Earth's orbit. The regeneration of air and water can be alternatively performed by a 17-L2 microalgal cultivator with a light-receiving surface of 8 m at 2 kW of light energy or by a conveyer culture of agricultural plants. To regenerate the vegetable part of2 the diet to the full, the area must increase to 31.5 m per person. Similar values have been obtained in the TES and in Bioplex. It can be concluded that the system is ready to be implemented in the engineering-technical designs of specific versions: for orbital flights, for missions to Mars and other planets, and for stations on the Moon and Mars. To improve the CES further, a number of new key problems should be resolved. The first of them are: to robotize the technological processes and to establish an optimized system of the internal control of the CES by the crew working in it; to develop a hybrid physicochemical-biological technology for returning the dead-end products of biosynthesis into the system's cycling; to solve the fundamental problem of regenerating the human ration completely inside the CES by the autotrophic chemo - and photosynthesis. Once this problem is solved, the energy requirements for life support in space will be significantly reduced. This will also considerably contribute to the solution of the most pressing terrestrial problem - energy efficient production of food.

  13. Water Research Foundation Project 4090 Decision Support System

    E-print Network

    Keller, Arturo A.

    Water Research Foundation Project 4090 Decision Support System for Sustainable Energy Management Steve Conrad, Principal Investigator Director, Sustainable Systems - Junxion Strategy Inc. PhD Candidate;Presentation Outline > Provide Project Background > Discuss Decision Support > Present Scope of Decision

  14. INTRODUCTION Mechanical circulatory support system are widely used

    E-print Network

    Kim, Chris H.

    INTRODUCTION Mechanical circulatory support system are widely used as cardiopulmonary bypass circulatory support systems, focusing on implantable circulatory assist applications are in progress generation implantable circulatory device. In the early stages of development, arguments against their long

  15. Launch Processing System - A system to support the Space Shuttle

    NASA Technical Reports Server (NTRS)

    Paul, H. C.

    1975-01-01

    Kennedy Space Center (KSC) is designing and acquiring a Launch Processing System (LPS), an important part of Ground Support Equipment (GSE), to Support launch site operations in a more efficient way than was done on previous programs. LPS will provide (1) automatic control of GSE and Shuttle systems for test and operations, (2) real time data analysis and information display, and (3) efficient recall of test data and engineering files to support Shuttle ground operations. Modern automation techniques, off-the-shelf components, and modular design are being employed to the maximum to achieve these goals. The cost of acquisition, operations, and maintenance of LPS is of great importance and is considered with each engineering trade.

  16. Emergency Life Support System aiming preprimed oxygenator.

    PubMed

    Isoyama, Takashi; Ariyoshi, Koki; Nii, Kyosuke; Saito, Itsuro; Fukunaga, Kazuyoshi; Inoue, Yusuke; Ono, Toshiya; Ishii, Kohei; Hara, Shintaro; Imachi, Kou; Takai, Madoka; Abe, Yusuke

    2013-01-01

    Development have been achieved of a new blood pump for next generation Percutaneous Cardio-Pulmonary Support (PCPS) system and a novel surface coating method for silicone membrane hollow fiber by physical adsorption using a copolymer composed of a 2-Methacryloyloxyethyl phosphorylcholine (MPC) unit and a hydrophobic unit. The new blood pump, named the Troidal Convolution Pump (TCP), is based on the principle of a cascade pump and perfused 5 L/min and 350 mmHg at 2450 rpm. The novel copolymer composed of 30% MPC unit and 3-(methacryloyloxy) propyltris (trimethylsiloxy) silane (MPTSSi) unit (PMMSi30) was the most suitable molecular design on a silicone surface. The PMMSi30 coated surface adsorbed 7.2 % as much protein a non-coated surface adsorbed. PMID:24111039

  17. Composting in advanced life support systems

    NASA Technical Reports Server (NTRS)

    Atkinson, C. F.; Sager, J. C.; Alazraki, M.; Loader, C.

    1998-01-01

    Space missions of extended duration are currently hampered by the prohibitive costs of external resupply. To reduce the need for resupply, the National Aeronautics and Space Administration (NASA) is currently testing methods to recycle solid wastes, water, and air. Composting can be an integral part of a biologically based waste treatment/recycling system. Results indicate that leachate from composted plant wastes is not inhibitory to seed germination and contains sufficient inorganic minerals to support plant growth. Other solid wastes, for example kitchen (food) wastes and human solid wastes, can be composted with inedible plant residues to safely reduce the volume of the wastes and levels of microorganisms potentially pathogenic to humans. Finished compost could serve as a medium for plant growth or mushroom production.

  18. 'Social' systems: designing digital systems that support social intelligence

    Microsoft Academic Search

    Thomas Erickson

    2009-01-01

    Large groups of people exhibit social intelligence: coherent behavior directed towards individual or collective goals. This paper examines ways in which such behavior is produced in face to face situations, and discusses how it can be supported in online systems used by geographically distributed groups. It describes the concept of a \\

  19. A Contemplation of Group Decision Support Systems Sohail Asghar

    E-print Network

    Fong, Chi Chiu "Simon"

    A Contemplation of Group Decision Support Systems Sohail Asghar Department of Computer Science-mail: rukhsanahunzai@hotmail.com Abstract-- A Decision Support System (DSS) is an interactive computer-based information system that supports decision making and sometimes knowledge management. Essentially

  20. Drivers of land use change and household determinants of sustainability in smallholder farming systems of Eastern Uganda

    PubMed Central

    de Ridder, Nico; de Jager, Andre; Delve, Robert J.; Bekunda, Mateete A.; Giller, Ken E.

    2010-01-01

    Smallholder farming systems in sub-Saharan Africa have undergone changes in land use, productivity and sustainability. Understanding of the drivers that have led to changes in land use in these systems and factors that influence the systems’ sustainability is useful to guide appropriate targeting of intervention strategies for improvement. We studied low input Teso farming systems in eastern Uganda from 1960 to 2001 in a place-based analysis combined with a comparative analysis of similar low input systems in southern Mali. This study showed that policy-institutional factors next to population growth have driven land use changes in the Teso systems, and that nutrient balances of farm households are useful indicators to identify their sustainability. During the period of analysis, the fraction of land under cultivation increased from 46 to 78%, and communal grazing lands nearly completely disappeared. Cropping diversified over time; cassava overtook cotton and millet in importance, and rice emerged as an alternative cash crop. Impacts of political instability, such as the collapse of cotton marketing and land management institutions, of communal labour arrangements and aggravation of cattle rustling were linked to the changes. Crop productivity in the farming systems is poor and nutrient balances differed between farm types. Balances of N, P and K were all positive for larger farms (LF) that had more cattle and derived a larger proportion of their income from off-farm activities, whereas on the medium farms (MF), small farms with cattle (SF1) and without cattle (SF2) balances were mostly negative. Sustainability of the farming system is driven by livestock, crop production, labour and access to off-farm income. Building private public partnerships around market-oriented crops can be an entry point for encouraging investment in use of external nutrient inputs to boost productivity in such African farming systems. However, intervention strategies should recognise the diversity and heterogeneity between farms to ensure efficient use of these external inputs. PMID:20628448

  1. Optimization of life support systems and their systems reliability

    NASA Technical Reports Server (NTRS)

    Fan, L. T.; Hwang, C. L.; Erickson, L. E.

    1971-01-01

    The identification, analysis, and optimization of life support systems and subsystems have been investigated. For each system or subsystem that has been considered, the procedure involves the establishment of a set of system equations (or mathematical model) based on theory and experimental evidences; the analysis and simulation of the model; the optimization of the operation, control, and reliability; analysis of sensitivity of the system based on the model; and, if possible, experimental verification of the theoretical and computational results. Research activities include: (1) modeling of air flow in a confined space; (2) review of several different gas-liquid contactors utilizing centrifugal force: (3) review of carbon dioxide reduction contactors in space vehicles and other enclosed structures: (4) application of modern optimal control theory to environmental control of confined spaces; (5) optimal control of class of nonlinear diffusional distributed parameter systems: (6) optimization of system reliability of life support systems and sub-systems: (7) modeling, simulation and optimal control of the human thermal system: and (8) analysis and optimization of the water-vapor eletrolysis cell.

  2. 9, 1443714473, 2012 Soil carbon drivers

    E-print Network

    Ickert-Bond, Steffi

    BGD 9, 14437­14473, 2012 Soil carbon drivers and benchmarks in Earth system models K. E. O. Todd if available. Causes of variation in soil carbon predictions from CMIP5 Earth system models and comparison #12;BGD 9, 14437­14473, 2012 Soil carbon drivers and benchmarks in Earth system models K. E. O. Todd

  3. A novel methodology for estimating upper limits of major cost drivers for profitable conceptual launch system architectures

    NASA Astrophysics Data System (ADS)

    Rhodes, Russel E.; Byrd, Raymond J.

    1998-01-01

    This paper presents a ``back of the envelope'' technique for fast, timely, on-the-spot, assessment of affordability (profitability) of commercial space transportation architectural concepts. The tool presented here is not intended to replace conventional, detailed costing methodology. The process described enables ``quick look'' estimations and assumptions to effectively determine whether an initial concept (with its attendant cost estimating line items) provides focus for major leapfrog improvement. The Cost Charts Users Guide provides a generic sample tutorial, building an approximate understanding of the basic launch system cost factors and their representative magnitudes. This process will enable the user to develop a net ``cost (and price) per payload-mass unit to orbit'' incorporating a variety of significant cost drivers, supplemental to basic vehicle cost estimates. If acquisition cost and recurring cost factors (as a function of cost per payload-mass unit to orbit) do not meet the predetermined system-profitability goal, the concept in question will be clearly seen as non-competitive. Multiple analytical approaches, and applications of a variety of interrelated assumptions, can be examined in a quick, (on-the-spot) cost approximation analysis as this tool has inherent flexibility. The technique will allow determination of concept conformance to system objectives.

  4. Description and operating performance of a parallel-rail electric-arc system with helium driver gas for the Langley 6-inch expansion tube

    NASA Technical Reports Server (NTRS)

    Moore, J. A.

    1976-01-01

    A parallel-rail arc-discharge system to heat and pressurize the initial helium driver gas of the Langley 6-inch expansion tube is described. This system was designed for a 2.44-m-long driver vessel rated at 138 MPa, with a distance between rails of 20.3 cm. Electric energy was obtained from a capacitor storage system rated at 12,000 V with a maximum energy of 5 MJ. Tests were performed over a range of energy from 1.74 MJ to the maximum value. The operating experience and system performance are discussed, along with results from a limited number of expansion-tube tests with air and carbon dioxide as test gases.

  5. Reversing control of a car with a trailer using a Driver Assistance System

    Microsoft Academic Search

    Jaeil Roh; Woojin Chung

    2010-01-01

    A passive trailer system can be used efficiently for transportation tasks. However, backward motion control of a trailer system is difficult because it is an open loop unstable system. In our previous researches, we have shown that n passive trailers can be successfully controlled by an ommni-directional or a two-wheel-differential mobile robot. However, a passive trailer system pulled by a

  6. Architectural and Functional Modelling of an Automotive Driver Information System Using SysML

    Microsoft Academic Search

    Yue Guo; A. Chakrapani Rao; R. P. Jones

    2008-01-01

    With a near exponential growth of in-car, embedded electronic systems, the automotive industry is facing extreme challenges in the flawless delivery of such systems within ever decreasing delivery time scales. Model based design is one potential methodology to meet these challenges. This paper describes research into model based design of a particular automotive electronic system, using the SysML modelling language.

  7. In-Vehicle Information Systems to Meet the Needs of Drivers

    Microsoft Academic Search

    Catherine Harvey; Neville A. Stanton; Carl A. Pickering; Mike McDonald; Pengjun Zheng

    2011-01-01

    In-Vehicle Information Systems (IVISs) integrate most of the secondary functions available within vehicles. These secondary functions are aimed at enhancing the driving experience. To successfully design and evaluate the performance of these systems, a thorough understanding of the task, user, and system is required. This article presents a review of these three variables in the context of IVISs, which aims

  8. A study of approaches for model based development of an automotive driver information system

    Microsoft Academic Search

    Yue Guo; R. Peter Jones

    2009-01-01

    Over the past decades, the use of electronic systems in automotive vehicles has grown exponentially. Automotive systems engineering requires a sustainable integration of new methods, development processes, and tools that are specifically adapted to the automotive domain. This paper describes two approaches to the development of an automotive electronic system via a case study involving the modelling and code generation

  9. A Framework for Decision Support in Systems Architecting

    E-print Network

    de Weck, Olivier L.

    A Framework for Decision Support in Systems Architecting by Willard Lennox Simmons B.S., University Students #12;2 #12;A Framework for Decision Support in Systems Architecting by Willard Lennox Simmons- vides a computational framework for decision support called the Architecture Decision Graph framework

  10. Marko Bohanec: Systems and Techniques of Decision Support

    E-print Network

    Bohanec, Marko

    Marko Bohanec: Systems and Techniques of Decision Support Questions Version 16.11.2010 1 and Descriptive approach to Decision Science. 9. What is Decision Support? 10. Define Decision Support Systems? 11. Introduction 1. What is Decision Problem? Which are its components and goals? 2. Which types of decision

  11. Electronic Performance Support Systems (EPSS): Making the Transition.

    ERIC Educational Resources Information Center

    Des Jardins, Susan; Davis, Harry, Jr.

    An electronic performance support system (EPSS) is a computerized system designed to increase productivity by supporting the performance of the worker on demand at the time of need. This way, workers are allowed to perform with a minimum of intervention from others. Popular examples of performance support tools, or partially implemented EPSSs,…

  12. A hand rehabilitation support system with improvements based on clinical

    E-print Network

    Ito, Satoshi

    A hand rehabilitation support system with improvements based on clinical practices Satoshi Ito rehabilitation support system that provides a rehabilitation environment where patients can conduct enjoyable trainings by themselves as much as they want. First of all, the feature of this rehabilitation support

  13. Support System for Mental Health Professionals*

    PubMed Central

    Dandekar, Ajit

    2015-01-01

    This paper talks of support systems for mental health professionals wherein the Bombay Psychiatric Society (BPS) should devote some meetings exclusively to problems pertaining to the profession, e.g., long and odd working hours leading to potentially hazardous practice schedules, unhealthy competitive attitudes and culture. A crash course in self-defence against potentially psychotic patients and drug addicts is advocated as also awareness of the potential hazards in dealing with the litigious paranoid patients, erotomaniacs and some of the difficult hysterical patients. Potential medicolegal problems arise in treating an uncooperative patient without his knowledge and consent on an outpatient department basis, admitting such an uncooperative patient to a nursing home or a hospital, administering electroconvulsive therapies, maintaining detailed clinical records of patients, and legal issues involving smaller psychiatric private nursing homes. This paper stresses on the use of Yoga as a recognised psycho-physiological therapy. Furthermore, it suggests on the need for BPS, as a professional body, to have a cell to guide and help aspiring young professionals in setting up private practice. It points out the need to evolve some concrete programmes that in the long run should help alleviate stresses and strains and promote positive comprehensive health amongst mental health professionals. PMID:25838730

  14. Design and implementation of an environmental decision support system

    Microsoft Academic Search

    William G. Booty; David C.-L. Lam; Isaac W. S. Wong; P. Siconolfi

    2001-01-01

    An environmental decision support system is a specific version of an environmental information system that is designed to help decision makers, managers, and advisors locate relevant information and carry out optimal solutions to problems using special tools and knowledge. The RAISON (Regional Analysis by Intelligent Systems ON microcomputers) for Windows decision support system has been developed at the National Water

  15. An End System Software Architecture to Support Multimedia Multiuser Applications

    E-print Network

    Kwon, Taekyoung

    architecture to support multi­ media multiuser applications in high­speed networks. The proposed end systemAn End System Software Architecture to Support Multimedia Multiuser Applications T. Kwon, S. Park services from underly­ ing communication systems. In this paper, we present an end system software

  16. Evaluating informatics applications - clinical decision support systems literature review

    Microsoft Academic Search

    Bonnie Kaplan

    2001-01-01

    This paper reviews clinical decision support systems (CDSS) literature, with a focus on evaluation. The literature indicates a general consensus that clinical decision support systems are thought to have the potential to improve care. Evidence is more equivocal for guidelines and for systems to aid physicians with diagnosis. There also is general consensus that a variety of systems are little

  17. Identification of causal genetic drivers of human disease through systems-level analysis of regulatory networks* | Office of Cancer Genomics

    Cancer.gov

    Identification of driver mutations in human diseases is often limited by cohort size and availability of appropriate statistical models. We propose a framework for the systematic discovery of genetic alterations that are causal determinants of disease, by prioritizing genes upstream of functional disease drivers, within regulatory networks inferred de novo from experimental data. We tested this framework by identifying the genetic determinants of the mesenchymal subtype of glioblastoma.

  18. Lane-Change Detection Using a Computational Driver Model

    Microsoft Academic Search

    Dario D. Salvucci; Hiren M. Mandalia; Nobuyuki Kuge; Tomohiro Yamamura

    2007-01-01

    Objective: This paper introduces a robust, real-time system for detecting driver lane changes. Background: As intelligent transportation systems evolve to assist drivers in their intended behaviors, the systems have demonstrated a need for methods of inferring driver intentions and detecting intended maneuvers. Method: Using a \\

  19. Driver Distraction From a Control Theory Perspective

    Microsoft Academic Search

    Thomas B. Sheridan

    2004-01-01

    Distraction from cell phones, navigation systems, information\\/entertainment systems, and other driver-interactive devices now finding their way into the highway vehicles is a serious national safety concern. However, driver distraction is neither well defined nor well understood. In an effort to bring some better definition to the problem, a framework is proposed based on the ideas of control theory. Loci and

  20. Drivers for adopting environmental management systems in the post-Soviet mining industry

    Microsoft Academic Search

    Olli Salmi

    2008-01-01

    The past decade has witnessed an active dismantling of public environmental policy in Russia. At the same time, Russian companies\\u000a involved in natural resources extraction have adopted standardized environmental management systems. In this way, much of\\u000a the responsibility of environmental policy in Russia has been transferred to private industries and their environmental management\\u000a systems. These systems do not, as such,

  1. A Computuerized Operator Support System Prototype

    SciTech Connect

    Ken Thomas; Ronald Boring; Roger Lew; Tom Ulrich; Richard Villim

    2013-08-01

    A report was published by the Idaho National Laboratory in September of 2012, entitled Design to Achieve Fault Tolerance and Resilience, which described the benefits of automating operator actions for transients. The report identified situations in which providing additional automation in lieu of operator actions would be advantageous. It recognized that managing certain plant upsets is sometimes limited by the operator’s ability to quickly diagnose the fault and to take the needed actions in the time available. Undoubtedly, technology is underutilized in the nuclear power industry for operator assistance during plant faults and operating transients. In contrast, other industry sectors have amply demonstrated that various forms of operator advisory systems can enhance operator performance while maintaining the role and responsibility of the operator as the independent and ultimate decision-maker. A computerized operator support system (COSS) is proposed for use in nuclear power plants to assist control room operators in addressing time-critical plant upsets. A COSS is a collection of technologies to assist operators in monitoring overall plant performance and making timely, informed decisions on appropriate control actions for the projected plant condition. The COSS does not supplant the role of the operator, but rather provides rapid assessments, computations, and recommendations to reduce workload and augment operator judgment and decision-making during fast-moving, complex events. This project proposes a general model for a control room COSS that addresses a sequence of general tasks required to manage any plant upset: detection, validation, diagnosis, recommendation, monitoring, and recovery. The model serves as a framework for assembling a set of technologies that can be interrelated to assist with each of these tasks. A prototype COSS has been developed in order to demonstrate the concept and provide a test bed for further research. The prototype is based on four underlying elements consisting of a digital alarm system, computer-based procedures, PI&D system representations, and a recommender module for mitigation actions. At this point, the prototype simulates an interface to a sensor validation module and a fault diagnosis module. These two modules will be fully integrated in the next version of the prototype. The initial version of the prototype is now operational at the Idaho National Laboratory using the U.S. Department of Energy’s Light Water Reactor Sustainability (LWRS) Human Systems Simulation Laboratory (HSSL). The HSSL is a full-scope, full-scale glass top simulator capable of simulating existing and future nuclear power plant main control rooms. The COSS is interfaced to the Generic Pressurized Water Reactor (gPWR) simulator with industry-typical control board layouts. The glass top panels display realistic images of the control boards that can be operated by touch gestures. A section of the simulated control board was dedicated to the COSS human-system interface (HSI), which resulted in a seamless integration of the COSS into the normal control room environment.

  2. Nonlinear oscillations and chaotic motions in a road vehicle system with driver steering control

    Microsoft Academic Search

    Z. Liu; G. Payre; P. Bourassa

    1996-01-01

    The nonlinear dynamics of a differential system describing the motion of a vehicle driven by a pilot is examined. In a first step, the stability of the system near the critical speed is analyzed by the bifurcation method in order to characterize its behavior after a loss of stability. It is shown that a Hopf bifurcation takes place, the stability

  3. Concept of three-pass 4-F amplifying system for ICF driver

    NASA Astrophysics Data System (ADS)

    Zhang, Xiao Min; Wei, XiaoFeng; Zhang, Shukui; Sui, Zhan; Jing, Feng; Zheng, Wanguo; Man, Yongzai

    1995-12-01

    The concept of a three-pass amplification system was developed. There was no large aperture Pockels cell and polarizer in the system. A special beam transformer was adopted to ensure the beam match and diminish self-oscillating in the cavity by insertion of a small size optical switch. Some preliminary simulation results are given to optimize the design.

  4. Concept of three pass 4-F amplifying system for ICF driver

    SciTech Connect

    Zhang, X.M.; Wei, X.F.; Zhang, S.K.; Sui, Z.; Jing, F.; Zheng, W.G.; Man, Y.Z. [Southwest Inst. of Nuclear Physics and Chemistry, Chengdu (China). Lab. for Laser Fusion

    1995-12-31

    The concept of a three-pass amplification system was developed. There was no large aperture Pockels cell and polarizer in the system. A special beam transformer was adopted to ensure the beam match and diminish self-oscillating in the cavity by inserting of a small size optical switch. Some preliminary simulation results were given to optimize the design.

  5. Providing Automated Semantic Support for Software Agents in Spatial Decision Support Systems 

    E-print Network

    Li, Sen

    2008-12-05

    Spatial Decision Support System(SDSS) is a software system that aimed at assisting decision-makers generate and evaluate alternative solutions to semi and unstructured spatial problems through the integration of spatial ...

  6. Bioregenerative Life Support System Research as part of the DLR EDEN Initiative

    NASA Astrophysics Data System (ADS)

    Bamsey, Matthew; Schubert, Daniel; Zabel, Paul; Poulet, Lucie; Zeidler, Conrad

    In 2011, the DLR Institute of Space Systems launched a research initiative called EDEN - Evolution and Design of Environmentally-closed Nutrition-Sources. The research initiative focuses on bioregenerative life support systems, especially greenhouse modules, and technologies for future crewed vehicles. The EDEN initiative comprises several projects with respect to space research, ground testing and spin-offs. In 2014, EDEN’s new laboratory officially opened. This new biological cleanroom laboratory comprises several plant growth chambers incorporating a number of novel controlled environment agriculture technologies. This laboratory will be the nucleus for a variety of plant cultivation experiments within closed environments. The utilized technologies are being advanced using the pull of space technology and include such items as stacked growth systems, PAR-specific LEDs, intracanopy lighting, aeroponic nutrient delivery systems and ion-selective nutrient sensors. The driver of maximizing biomass output per unit volume and energy has much application in future bioregenerative life support systems but can also provide benefit terrestrially. The EDEN laboratory also includes several specially constructed chambers for advancing models addressing the interaction between bioregenerative and physical-chemical life support systems. The EDEN team is presently developing designs for containerized greenhouse modules. One module is planned for deployment to the German Antarctic Station, Neumayer III. The shipping container based system will provide supplementation to the overwintering crew’s diet, provide psychological benefit while at the same time advancing the technology and operational readiness of harsh environment plant production systems. In addition to hardware development, the EDEN team has participated in several early phase designs such as for the ESA Greenhouse Module for Space System and for large-scale vertical farming. These studies often utilize the Institute of Space Systems Concurrent Engineering Facility.

  7. Active support system for 1-m SONG primary mirror

    NASA Astrophysics Data System (ADS)

    Niu, Dongsheng; Wang, Guomin; Gu, Bozhong

    2012-05-01

    Chinese-node telescope of Stellar Observations Network Group (SONG) has a primary mirror 1m in diameter with flat back, which will be supported actively. The performance evaluation of the telescope's active optics system is conducted. Finite element analysis (FEA) is employed to analyze the optical surface figures of the primary mirror, and two optimizations are carried out by using ANSYS: (1) the locations and forces of axial supports are optimized with the telescope pointing to zenith; (2) the lateral support forces are calculated with the telescope pointing to horizon. Axial support force sensitivities are calculated in a case that a single axial support has a force error of 0.5N. The correction ability of the active support system is analyzed when an arbitrary axial support is failure. Several low order Zernike modes are modeled with MATLAB procedure, and active optics corrections are applied to these modes. Thermal deformation of the mirror is also corrected using active support system.

  8. Mature Driver Laws

    MedlinePLUS

    Mature Driver Laws More and more Americans are outliving their ability to drive safely. As a result of impairments in three ... address this issue, many states have have enacted laws that contain specific licensing requirements for older drivers. ...

  9. Fast, versatile pockels cell driver

    SciTech Connect

    Oicles, J.A.; Downs, D.C.; Kuizenga, D.J.

    1981-06-01

    Vacuum planar triodes, normally used in S-Band radar applications, can also serve as excellent switch tubes in fast, low jitter pulse generators. Laser systems have need of such generators for driving Pockels cells. Development work in this area has resulted in three successive driver designs. The present two-chassis unit will serve as a standard driver in the Nova and Novette laser systems. This assembly is capable of driving nine kilovolts into 75 ohms with three nanoseconds risetime and less than 100 picoseconds short term jitter. Rise and fall times of approximately two nanoseconds are available at half output voltage swing.

  10. Visitor schedule management system- an intelligent decision support system

    E-print Network

    Nidhra, Srinivas; Ethiraj, Vinay Sudha

    2012-01-01

    Travelling salesman problem is a problem which is of high interest for researchers, industry professionals, and academicians. Visitor or salesman used to face lot of problems with respect to scheduling based on meeting top ranked clients. Even excel sheet made the work tedious. So these flaws propelled us to design an intelligent decision support system. This paper reports the problem definition we tried to address and possible solution to this problem. We even explained the project design and implementation of our visitor schedule management system.. Our system made a major contribution in terms of valuable resources such as time and satisfying high ranked clients efficiently. We used optimization via mathematical programming to solve these issues.

  11. Transaction Support in Read Optimizied and Write Optimized File Systems

    Microsoft Academic Search

    Margo I. Seltzer; Michael Stonebraker

    1990-01-01

    This paper provides a comparative analysis of five implementations of transaction support. The first of the methods is the traditional approach of implementing transaction processing within a data manager on top of a read optimized file system. The second also assumes a traditional file system but embeds transaction support inside the file system. The third model considers a tradi- tional

  12. Analysis of multiple criteria decision support systems for cooperative groups

    Microsoft Academic Search

    Peri H. Iz; Lorraine R. Gardiner

    1993-01-01

    This article reviews research on multiple criteria decision support systems for cooperative groups. The systems included in this survey integrate concepts from group decision theory, multiple criteria decision methodology, and decision support system technology. Three dimensions are considered in the analysis of existing research: the multiple criteria decision technique used to generate decision alternatives or to choose from a given

  13. Behavior Change Support Systems: A Research Model and Agenda

    Microsoft Academic Search

    Harri Oinas-Kukkonen

    2010-01-01

    This article introduces the concept of a behavior change support system and suggests it as a key construct for research on persuasive systems design, technologies, and applications. Key concepts for behavior change support systems are defined and a research agenda for them is outlined. The article suggests that a change in complying, a behavior change, and an attitude change (C-,

  14. A Decision Supporting System for Earthquake Disaster Mitigation

    Microsoft Academic Search

    A. P Tang; A. P Zhao

    2012-01-01

    The earthquake disaster was a vast risk for a sustainable and harmonious societal and econonic development, so, it was effective methods to build a decision supporting system for earthquake disaster mitigation and preparation stratagem. A typical decision support system for Earthquake disaster mitigation was introduced in this paper. The principle, design criteria, structure, functions and application of the system were

  15. The Cognitive Ergonomics of Knowledge-Based Design Support Systems

    E-print Network

    The Cognitive Ergonomics of Knowledge-Based Design Support Systems Tamara Sumner Knowledge Media, Cognitive Ergonomics, Design, Design Environments, Knowledge-based Systems, Phone-based Interfaces ergonomic; i.e., systems that effectively support designers' cognitive work without hindering their creative

  16. Spatial Decision Support Systems: A coming of age

    Microsoft Academic Search

    Peter B. Keenan

    2006-01-01

    Decision Support Systems (DDS) have developed to exploit Information Technology (IT) to assist decision-makers in a wide variety of fields. The need to use spatial data in many of these diverse fields has led to increasing interest in the development of Spatial Decision Support Systems (SDSS) based around the Geo- graphic Information System (GIS) technology. The paper examines the relationship

  17. The SIunits package support for the International System of Units

    E-print Network

    Mintmire, John W.

    The SIunits package support for the International System of Units Marcel Heldoorn SIunits@webschool.nl File date 2002/08/01 -- Printed August 1, 2002 Abstract This article describes the SIunits package that provides support for the Syst`eme International d'Unit´es (SI). The Syst`eme International d'Unit´es (SI

  18. Operating System Structures to Support Security and Reliable Software

    Microsoft Academic Search

    Theodore A. Linden

    1976-01-01

    Security has become an important and challenging goal in the design of computer systems. This survey focuses on two system structuring concepts that support security: small protection domains and extended-type objects. These two concepts are especially promising because they also support reliable software by encouraging and enforcing highly modular software structures--in both systems software and in applications programs. Small protection

  19. Intelligent transportation system and traffic safety – drivers perception and acceptance of electronic speed checkers

    Microsoft Academic Search

    A. Marell; K. Westin

    1999-01-01

    Intelligent Transportation System (ITS) can play an important role in reducing risks and increasing traffic safety. Discussion as to whether a technological approach or a behavioral approach is the right way to achieve a safer traffic environment forms a point of departure for this paper. On the one hand, there are the technicians who emphasize technology as the way towards

  20. Transitioning Control and Sensing Technologies from Fully-autonomous Driving to Driver Assistance Systems

    E-print Network

    Sastry, S. Shankar

    such as the Mercedes-Benz S-Class, Jaguar XKR and Lexus LS430 have had adaptive cruise control as an option for several as the next generation of cruise control for automobiles, offering a principled method for robustly, cruise control and anti-lock braking systems (ABS) -- to the less- well-known [1]: · vision enhancement

  1. Using Process Theory to Analyze Direct and Indirect Value-Drivers of Information Systems

    Microsoft Academic Search

    Shivraj Kanungo

    2005-01-01

    An increasing reliance on information systems has necessitated an even greater investment in IT assets. Additionally, large expenditures on training, process redesign, value-added service partners and other organizational changes accompany the more tangible IT investments. In this paper the \\

  2. Drivers of Learning Management System Use in a South African Open and Distance Learning Institution

    ERIC Educational Resources Information Center

    Venter, Peet; van Rensburg, Mari Jansen; Davis, Annemarie

    2012-01-01

    The study on which this article reports examined the determinants of usage of an online learning management system (LMS) by fourth level business students at a South African open and distance learning university using an extension of the widely used technology acceptance model (TAM) as a theoretical basis. A survey was conducted among students at…

  3. Forestry Driver Mapping Project

    E-print Network

    · Borneo · Congo Basin1 · Mekong Region2 · Southern Chile. The project also assesses the role of China in the Amazon, Borneo and Mekong regions. Driver 1: Commercial Agriculture · Commercial agriculture is a leading driver of deforestation in the Amazon, Borneo, and in the Mekong Region. Driver 2: Tree Plantations

  4. Development of pre pre-driver amplifier stage for generator of SST1 ICRH system

    Microsoft Academic Search

    Sunil Kumar; Azad Sinh Makwana; Y. S. S. Srinivas; S. V. Kulkarni

    2010-01-01

    The Ion Cyclotron Resonance Heating (ICRH) system for SST1 consists mainly of the cwrf power generator to deliver 1.5MW for 1000sec duration at the frequencies 22.8, 24.3 and 45.6±1MHz, the transmission line and the antenna. This is planned to develop a independent and dedicated cwrf generator that consists of a oscillator, buffer, rf switch, modulator, rf attenuator, directional coupler, three

  5. The support and cryostat system for doubler magnets

    Microsoft Academic Search

    G. Biallas; J. Finks; B. Strauss; M. Kuchnir; W. Hanson; E. Kneip; H. Hinterberger; D. Dewitt; R. Powers

    1979-01-01

    This paper describes the support design, and mass production engineering of the Energy Doubler Dipole Cryostats. The coils, which are surrounded by a warm iron yoke, must be supported against high magnetic forces resulting from errors in the concentricity between the coil and iron yoke. The whole support system must be further contained within a one inch radial distance. The

  6. A Foundation for the Study of Group Decision Support Systems

    Microsoft Academic Search

    Gerardine DeSanctis; R. Brent Gallupe

    1987-01-01

    Technical developments in electronic communication, computing, and decision support, coupled with new interest on the part of organizations to improve meeting effectiveness, are spurring research in the area of group decision support systems (GDSS). A GDSS combines communication, computing, and decision support technologies to facilitate formulation and solution of unstructured problems by a group of people. This paper presents a

  7. Melissa: The European project of closed life support system

    Microsoft Academic Search

    Ch. Lasseur; C. Paillé; B. Lamaze; P. Rebeyre; A. Rodriguez; L. Ordonez; F. Marty

    2006-01-01

    The MELISSA Micro-Ecological Life Support Alternative project was initiated in 1989 It is intended as a tool to gain understanding of closed life support as well as the development of the technology for a future life support system for long term manned space missions e g a lunar base or a mission to Mars The collaboration was established through a

  8. Melissa: The European project of a closed life support system

    Microsoft Academic Search

    Christophe Lasseur

    2008-01-01

    The MELISSA (Micro-Ecological Life Support Alternative) project was initiated in 1989. It is intended as a tool to gain understanding of closed life support, as well as the development of the technology for a future life support system for long term manned space missions, e.g. a lunar base or a mission to Mars. The collaboration was established through a Memorandum

  9. Development of a portable life support system and emergency life support pack

    NASA Technical Reports Server (NTRS)

    1970-01-01

    The design, development, and fabrication of a feasibility model of a breathing bag life support system for extravehicular activity are discussed. The breathing vest and back pack portable life support system contains connectors which allow external water and gas supply. At a metabolic rate of 2000 BTU per hour, the two low pressure bottles provide 27 minutes of breathing gas for a total filled system weight of 30.5 pounds.

  10. Decision support systems based on LSP method In the area of decision support systems, our main emphasis is further

    E-print Network

    Dujmovic, Jozo J.

    Decision support systems based on LSP method In the area of decision support systems, our main emphasis is further development of the LSP method: theoretical infrastructure, techniques, and software a new efficient system optimization algorithm (the "stepwise filtering algorithm") and expanded LSP

  11. Modeling Driver Behavior in a Cognitive Architecture

    Microsoft Academic Search

    Dario D. Salvucci

    2006-01-01

    Objective: This paper explores the development of a rigorous computational model of driver behavior in a cognitive architecture--a computational framework with underlying psychological theories that incorporate basic properties and limitations of the human system. Background: Computational modeling has emerged as a powerful tool for studying the complex task of driving, allowing researchers to simulate driver behavior and explore the parameters

  12. Old-age support system and policy reform in China.

    PubMed

    Gu, S; Zhu, N; Chen, X; Liang, J

    1995-12-01

    "With the on-going economic transition from the central planned system to a market-oriented system, the population aging process in China is also accelerating, and the support system for the elderly becomes an important issue demanding attention. With data from Chinese national statistics and a regional probability sampling survey in Wuhan Area, two supporting systems for the aged in China are examined in this paper. After a briefing of the population aging process in China, a detailed discussion of the two supporting systems, i.e. the formal and the informal support systems for the aged, including arrangement, operation and funding mechanisms of the systems, is made in terms of policy reform. Then follows an international comparison to highlight features and problems of the Chinese systems. Finally, solutions are proposed for the restructuring of China's pension systems." PMID:12320063

  13. Detection of new in-path targets by drivers using Stop & Go Adaptive Cruise Control.

    PubMed

    Stanton, Neville A; Dunoyer, Alain; Leatherland, Adam

    2011-05-01

    This paper reports on the design and evaluation of in-car displays used to support Stop & Go Adaptive Cruise Control. Stop & Go Adaptive Cruise Control is an extension of Adaptive Cruise Control, as it is able to bring the vehicle to a complete stop. Previous versions of Adaptive Cruise Control have only operated above 26 kph. The greatest concern for these technologies is the appropriateness of the driver's response in any given scenario. Three different driver interfaces were proposed to support the detection of modal, spatial and temporal changes of the system: an iconic display, a flashing iconic display, and a representation of the radar. The results show that drivers correctly identified more changes detected by the system with the radar display than with the other displays, but higher levels of workload accompanied this increased detection. PMID:20870216

  14. Evaluating Detection and Diagnostic Decision Support Systems for Bioterrorism Response

    PubMed Central

    Sundaram, Vandana; McDonald, Kathryn M.; Smith, Wendy M.; Szeto, Herbert; Schleinitz, Mark D.; Owens, Douglas K.

    2004-01-01

    We evaluated the usefulness of detection systems and diagnostic decision support systems for bioterrorism response. We performed a systematic review by searching relevant databases (e.g., MEDLINE) and Web sites for reports of detection systems and diagnostic decision support systems that could be used during bioterrorism responses. We reviewed over 24,000 citations and identified 55 detection systems and 23 diagnostic decision support systems. Only 35 systems have been evaluated: 4 reported both sensitivity and specificity, 13 were compared to a reference standard, and 31 were evaluated for their timeliness. Most evaluations of detection systems and some evaluations of diagnostic systems for bioterrorism responses are critically deficient. Because false-positive and false-negative rates are unknown for most systems, decision making on the basis of these systems is seriously compromised. We describe a framework for the design of future evaluations of such systems. PMID:15078604

  15. Atlas Pulsed Power System: a Driver for Multi-Megagauss Fields

    SciTech Connect

    Cochrane, J.C.; Bartsch, R.R.; Bennett, G.A.; Bowman, D.W.; Davis, H.A.; Ekdahl, C.A.; Gribble, R.F.; Kimerly, H.J.; Nielsen, K.E.; Parsons, W.M.; Paul, J.D.; Scudder, D.W.; Trainor, R.J.; Thompson, M.C.; Watt, R.G.

    1998-10-18

    Atlas is a pulsed power machine designed for hydrodynamic experiments for the Los Alamos High Energy Density Physics Experimental program. It is presently under construction and should be operational in late 2000. Atlas will store 23 MJ at an erected voltage of 240 kV. This will produce a current of 30 MA into a static load and as much as 32 MA into a dynamic load. The current pulse will have a rise time of {approximately}5{micro}s and will produce a magnetic field driving the impactor liner of several hundred Tesla at the target radius of one to two centimeters. The collision can produce shock pressures of {approximately}15 megabars. Design of the pulsed power system will be presented along with data obtained from the Atlas prototype Marx module.

  16. Capturing the time-varying drivers of an epidemic using stochastic dynamical systems.

    PubMed

    Dureau, Joseph; Kalogeropoulos, Konstantinos; Baguelin, Marc

    2013-07-01

    Epidemics are often modeled using non-linear dynamical systems observed through partial and noisy data. In this paper, we consider stochastic extensions in order to capture unknown influences (changing behaviors, public interventions, seasonal effects, etc.). These models assign diffusion processes to the time-varying parameters, and our inferential procedure is based on a suitably adjusted adaptive particle Markov chain Monte Carlo algorithm. The performance of the proposed computational methods is validated on simulated data and the adopted model is applied to the 2009 H1N1 pandemic in England. In addition to estimating the effective contact rate trajectories, the methodology is applied in real time to provide evidence in related public health decisions. Diffusion-driven susceptible exposed infected retired-type models with age structure are also introduced. PMID:23292757

  17. Conceptual design for a linear-transformer driver (LTD)-based refurbishment and upgrade of the Saturn accelerator pulse-power system.

    SciTech Connect

    Mazarakis, Michael Gerrassimos; Struve, Kenneth William

    2006-09-01

    The purpose of this work was to develop a conceptual design for the Saturn accelerator using the modular Liner-Transformer Driver (LTD) technology to identify risks and to focus development and research for this new technology. We present a reference design for a Saturn class driver based on a number of linear inductive voltage adders connected in parallel. This design is very similar to a design reported five years ago [1]. However, with the design reported here we use 1-MA, 100-kV LTD cavities as building blocks. These cavities have already been built and are currently in operation at the HCEI in Tomsk, Russia [2]. Therefore, this new design integrates already-proven individual components into a full system design.

  18. Factory support -- The development of a strategy for the factory support of a fielded surveillance system

    SciTech Connect

    Bozone, J.; Coffing, J. [Aquila Technologies Group, Inc., Albuquerque, NM (United States)

    1993-12-31

    From late 1992 to mid 1993, Aquila and the International Atomic Energy Agency (IAEA) executed a Factory Support Program for the Modular Integrated Video System (MIVS). The goal of the program was to strengthen logistic support for the more than 200 MIVS deployed world-wide. In addition to accomplishing this goal, a completely unanticipated improvement in overall mission performance was also obtained. The benefit of the accumulated experience of IAEA field technicians and inspectors combined with that of product engineers from Aquila resulted in a mission effectiveness and efficiency that neither could produce alone. This paper describes the individual components of the MIVS Factory Support activities which, taken together, constitute an entire logistics support process. The MIVS factory support program is an example of the far-reaching benefits obtained by combining the resources of the system user with those of the system manufacturer to achieve the best possible mission effectiveness.

  19. Cold Mass Support System for he D0 Solenoid

    SciTech Connect

    Squires, B.; /Fermilab

    1993-08-09

    The support system is designed to support the gravitational, magnetic, and thermal contraction loads associated with the cold mass weighing 1.46 metric tons (3210 Ibm). The loading constraints are listed in Table 1. The support system consists of axial members (axial supports) to provide longitudinal stiffness and nearly tangential members (radial supports) to provide radial stiffness. The members connect the outer support cylinder to the flat annular bulkheads of the vacuum vessel. See Figures 1 through 3 for additional details on the supports. Six axial compression-tension supports are located on the chimney end of the cryostat only. Six radial tension supports are located on each end. Both types of members are fabricated of Inconel 718 and have a design safety factor of 4 on the ultimate strength at 300 K. The axial supports are also designed for a buckling safety factor of 4 for the operating loads. Shipping stops will be installed to prevent the axial supports from going into compression during transportation. Axial and radial contraction of the coil support cylinder is accommodated by spherical bearings on both ends ofeach support member.

  20. Planning support systems for spatial planning through social learning

    E-print Network

    Goodspeed, Robert (Robert Charles)

    2013-01-01

    This dissertation examines new professional practices in urban planning that utilize new types of spatial planning support systems (PSS) based on geographic information systems (GIS) software. Through a mixed-methods ...

  1. Land-Based Wind Plant Balance-of-System Cost Drivers and Sensitivities (Poster)

    SciTech Connect

    Mone, C.; Maples, B.; Hand, M.

    2014-04-01

    With Balance of System (BOS) costs contributing up to 30% of the installed capital cost, it is fundamental to understand the BOS costs for wind projects as well as potential cost trends for larger turbines. NREL developed a BOS model using project cost estimates developed by industry partners. Aspects of BOS covered include engineering and permitting, foundations for various wind turbines, transportation, civil work, and electrical arrays. The data introduce new scaling relationships for each BOS component to estimate cost as a function of turbine parameters and size, project parameters and size, and geographic characteristics. Based on the new BOS model, an analysis to understand the non?turbine wind plant costs associated with turbine sizes ranging from 1-6 MW and wind plant sizes ranging from 100-1000 MW has been conducted. This analysis establishes a more robust baseline cost estimate, identifies the largest cost components of wind project BOS, and explores the sensitivity of the capital investment cost and the levelized cost of energy to permutations in each BOS cost element. This presentation shows results from the model that illustrate the potential impact of turbine size and project size on the cost of energy from US wind plants.

  2. Beam self-excited rf cavity driver for a deflector or focusing system

    SciTech Connect

    Wadlinger, E.A.

    1996-09-01

    A bunched beam from and accelerator can excite and power an rf cavity which then drives either a deflecting or focusing (including nonlinear focusing) rf cavity with and amplitude related to beam current. Rf power, generated when a bunched beam loses energy to an rf field when traversing an electric field that opposes the particle`s motion, is used to drive a separate (or the same) cavity to either focus or deflect the beam. The deflected beam can be stopped by an apertures or directed to a different area of a target depending on beam current. The beam-generated rf power can drive a radio-frequency quadrupole (RFQ) that can change the focusing properties of a beam channel as a function of beam current (space- charge force compensation or modifying the beam distribution on a target). An rf deflector can offset a beam to a downstream sextupole, effectively producing a position-dependent quadrupole field. The combination of rf deflector plus sextupole will produce a beam current dependent quadropole-focusing force. A static quadrupole magnet plus another rf deflector can place the beam back on the optic axis. This paper describes the concept, derives the appropriate equations for system analysis, and fives examples. A variation on this theme is to use the wake field generated in an rf cavity to cause growth in the beam emittance. The beam current would then be apertured by emittance defining slits.

  3. 14 CFR 417.307 - Support systems.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...coverage, must be consistent with the flight safety limits of § 417.213 and the flight safety system time delay of § 417.221. (8) Any planned...transmitters. (c) Telemetry. (1) A flight safety system must include a...

  4. 14 CFR 417.307 - Support systems.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ...coverage, must be consistent with the flight safety limits of § 417.213 and the flight safety system time delay of § 417.221. (8) Any planned...transmitters. (c) Telemetry. (1) A flight safety system must include a...

  5. Support graph preconditioners for sparse linear systems 

    E-print Network

    Gupta, Radhika

    2005-02-17

    Elliptic partial differential equations that are used to model physical phenomena give rise to large sparse linear systems. Such systems can be symmetric positive de?nite and can be solved by the preconditioned conjugate gradients method...

  6. A Decision Support System Based on Support Vector Machine for Hard Landing of Civil Aircraft

    Microsoft Academic Search

    Wang Xu-hui; Shu Ping; Rong Xiang; Nie Lei

    2009-01-01

    Hard landing event affect the flight safety seriously. In this paper, a decision support system that classifiers the hard landing signals of the civil aircraft to two classes (normal and abnormal) is presented to support fault diagnosis. As our previous paper where ANN is used as a classifier for event detection from measured hard landing signals. In this paper, our

  7. An integrated logistics support system for training crew medical officers in advanced cardiac life support management

    Microsoft Academic Search

    Miguel A Gonzalez; Jen Gwo Chen; Richard Oswald

    1999-01-01

    The purpose of this paper is to present an approach for the development of an integrated logistics support system for training space flight crew medical officers in advanced cardiac life support (ACLS). The most practical approach to deal with this problem has been determined to be the training of one or more of the crew members on the mission as

  8. Clouds: A support architecture for fault tolerant, distributed systems

    NASA Technical Reports Server (NTRS)

    Dasgupta, P.; Leblanco, R. J., Jr.

    1986-01-01

    Clouds is a distributed operating system providing support for fault tolerance, location independence, reconfiguration, and transactions. The implementation paradigm uses objects and nested actions as building blocks. Subsystems and applications that can be supported by Clouds to further enhance the performance and utility of the system are also discussed.

  9. A cognitive approach of Web-based learning support systems

    Microsoft Academic Search

    Lisa Fan

    2005-01-01

    For a Web-based open and dynamic learning environment, personalized support for learners becomes more important. In order to achieve optimal efficiency in a learning process, individual learner's cognitive learning style should be taken into account. Due to different types of learners using these systems, it is necessary to provide them with an individualized learning support system. A framework of cognitive

  10. Applied Research of Scheme Optimization in the Drilling Support System

    Microsoft Academic Search

    Cui Meng; Zhai Ying-hu

    2010-01-01

    In view of current characteristics of well drilling support system, analyzing mass of well history data, logging data and drilling materials of each oil field in China, a new scheme optimization method is established using comprehensive comparison and analysis of multi-well data. The new method is successfully applied to a distributed drilling support system that uses network and computer as

  11. Status of frequency and time support for NASA systems

    NASA Technical Reports Server (NTRS)

    Kuhnle, Paul F.; Kushmeider, Paul J.; Wardrip, S. Clark

    1994-01-01

    NASA has frequency and timing systems at many facilities and centers. Timing systems with specifications tighter than several microseconds are covered. These ground based systems support scientific experiments and spacecraft tracking for the following programs; NASA Satellite Laser Ranging (NSLR); Network Mission Operations Support (NMOS); Kennedy Space Center (KSC); Very Long Baseline Interferometry (VLBI); Tracking Data Relay Satellite System (TDRSS) Ground Terminal Network; and the Deep Space Network (DSN). Major equipment assemblies, specifications, performance, and requirements, both present and future, are presented.

  12. SystemC: a modeling platform supporting multiple design abstractions

    Microsoft Academic Search

    Preeti Ranjan Panda

    2001-01-01

    SystemC is a C++ based modeling platform supporting design abstractions at the register-transfer, behavioral, and system levels. Consisting of a class library and a simulation kernel, the language is an attempt at standardization of a C\\/C++ design methodology, and is supported by the Open SystemC Initiative (OSCI), a consortium of a wide range of system houses, semiconductor companies, Intellectual property

  13. Switched mode piezo-panel driver

    Microsoft Academic Search

    R. J. Slakhorst

    2007-01-01

    Abstract\\u000aThe subject of this thesis is the design of a system which can drive piezo-panels. This system is called the piezo driver. The piezo-panels are used for an Active Noise Cancelling (ANC) system which is being developed to be used inside the cabin of airplanes. The piezo driver fills the gap between the calculating system, which provides the anti-noise

  14. A Computer Vision System for Analyzing and Interpreting the Cephalo-ocular Behavior of Drivers in a Simulated Driving Context

    Microsoft Academic Search

    S. Metari; F. Prel; T. Moszkowicz; D. Laurendeau; N. Teasdale; S. Beauchemin

    2010-01-01

    In this paper we introduce a new computer vision framework for the analysis and interpretation of the cephalo-ocular behavior of drivers. We start by detecting the most important facial features, namely the nose tip and the eyes. For that, we introduce a new algorithm for eyes detection and we call upon the cascade of boosted classifiers technique based on Haar-like

  15. DAMES application towards weapon system support

    Microsoft Academic Search

    T. Oseth; B. Portelli; C. Morgiewicz

    1989-01-01

    It is noted that a method using gate-level system simulation (GLSS) and higher level description languages will allow developers and maintainers to utilize a computer aided engineering (CAE) environment which is focused on the entire weapon system process. The possibility of such an environment is being addressed under the Demonstration of Avionics Module Exchangeability via Simulation (DAMES) program. The authors

  16. Life Support System Technologies for NASA Exploration Missions

    NASA Technical Reports Server (NTRS)

    Ewert, Michael K.

    2007-01-01

    The Lunar Mars Life Support Test series successfully demonstrated integration and operation of advanced technologies for closed-loop life support systems, including physicochemical and biological subsystems. Increased closure was obtained when targeted technologies, such as brine dewatering subsystems, were added to further process life support system byproducts to recover resources. Physicochemical and biological systems can be integrated satisfactorily to achieve desired levels of closure. Imbalances between system components, such as differences in metabolic quotients between human crews and plants, must be addressed. Each subsystem or component that is added to increase closure will likely have added costs, ranging from initial launch mass, power, thermal, crew time, byproducts, etc., that must be factored into break even analysis. Achieving life support system closure while maintaining control of total mass and system complexity will be a challenge.

  17. Issues in Integrated Health Management of Life Support Systems

    Microsoft Academic Search

    David Kortenkamp; Gautam Biswas; Eric-Jan Manders

    The Environmental Control and Life Support (ECLS) system of a space vehicle or habitat is respon- sible for maintaining a livable environment for human crew members. Depending on the duration of the mission, ECLS systems can vary from a set of simple subsystems to a set of complex interacting systems. The high importance of ECLS systems on manned space vehicles

  18. Development of decision support systems for bioenergy applications

    Microsoft Academic Search

    C. P Mitchell

    2000-01-01

    As the amount and complexity of information relating to the development of bioenergy systems increases so does the problem of how to handle the information in a manner which is helpful for decision making. Hypertext-based information systems and decision support systems are being developed to aid deployment of bioenergy systems.These approaches are discussed with reference to a short rotation forestry

  19. The cognitive ergonomics of knowledge-based design support systems

    Microsoft Academic Search

    Tamara Sumner; Nathalie Bonnardel; Benedikte Harstad Kallak

    1997-01-01

    Critiquing systems are a type of active, knowledge-based design support system. They propose to positively influence designers' cognitive processes by pointing out potential problems and contentious issues while designers work. To investigate the effects such systems have on the activities of professional designers, a design environment containing a critiquing system was designed, built, and evaluated for a specific area: phone-based

  20. 2D Barcode and Augmented Reality Supported English Learning System

    Microsoft Academic Search

    Tsung-yu Liu; Tan-hsu Tan; Yu-ling Chu

    2007-01-01

    This study aims to construct a 2D barcode handheld augmented reality supported learning system called HELLO (handheld english language learning organization), to improve students' English level. The HELLO integrates the 2D barcodes, the Internet, augmented reality, mobile computing and database technologies. The proposed system consists of two subsystems: an English learning management system and a mobile learning tools system. A

  1. Using Ontologies for Adaptive Navigation Support in Educational Hypermedia Systems

    Microsoft Academic Search

    Pythagoras Karampiperis; Demetrios Sampson

    2004-01-01

    Educational hypermedia systems seek to provide adaptive naviga- tion, whereas intelligent web-based learning systems seek to provide adaptive courseware generation. The design of powerful frameworks by merging the ap- proaches used in the above mentioned systems is recognized as one of the most interesting questions in adaptive web-based educational systems. In this paper we address adaptive navigation support in educational

  2. Requirements Development Issues for Advanced Life Support Systems: Solid Waste Management

    NASA Technical Reports Server (NTRS)

    Levri, Julie A.; Fisher, John W.; Alazraki, Michael P.; Hogan, John A.

    2002-01-01

    Long duration missions pose substantial new challenges for solid waste management in Advanced Life Support (ALS) systems. These possibly include storing large volumes of waste material in a safe manner, rendering wastes stable or sterilized for extended periods of time, and/or processing wastes for recovery of vital resources. This is further complicated because future missions remain ill-defined with respect to waste stream quantity, composition and generation schedule. Without definitive knowledge of this information, development of requirements is hampered. Additionally, even if waste streams were well characterized, other operational and processing needs require clarification (e.g. resource recovery requirements, planetary protection constraints). Therefore, the development of solid waste management (SWM) subsystem requirements for long duration space missions is an inherently uncertain, complex and iterative process. The intent of this paper is to address some of the difficulties in writing requirements for missions that are not completely defined. This paper discusses an approach and motivation for ALS SWM requirements development, the characteristics of effective requirements, and the presence of those characteristics in requirements that are developed for uncertain missions. Associated drivers for life support system technological capability are also presented. A general means of requirements forecasting is discussed, including successive modification of requirements and the need to consider requirements integration among subsystems.

  3. Tool Support for Working With Large Systems

    E-print Network

    Sillito, Jonathan

    with that subset Given an enormous amount of stuff, and some task to be done using some of the stuff, what is the relevant stuff for the task? [C. Glymour 1987] For a given task there is some subset of the entire system can't simultaneously see very much source code (60 lines maybe) and only those things that are close

  4. 14 CFR 417.307 - Support systems.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...The tracking system must provide real-time data to the flight safety data...must acquire, store, and provide real-time data to the flight safety data processing...recording devices; (4) Display real-time data against background...

  5. 14 CFR 417.307 - Support systems.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ...The tracking system must provide real-time data to the flight safety data...must acquire, store, and provide real-time data to the flight safety data processing...recording devices; (4) Display real-time data against background...

  6. 14 CFR 417.307 - Support systems.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...The tracking system must provide real-time data to the flight safety data...must acquire, store, and provide real-time data to the flight safety data processing...recording devices; (4) Display real-time data against background...

  7. Crop Simulation Models and Decision Support Systems

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The first computer simulation models for agricultural systems were developed in the 1970s. These early models simulated potential production for major crops as a function of weather conditions, especially temperature and solar radiation. At a later stage, the water component was added to be able to ...

  8. Mars Rover system loopwheel definition support

    NASA Technical Reports Server (NTRS)

    Trautwein, W.

    1977-01-01

    The feasibility of the loopwheel suspension system for use on a Mars roving vehicle was analyzed. Various steering concepts were evaluated and an optimum concept was identified on the basis of maximum probability of mission success. In the structural analysis of the loopwheel core and tread as the major fatigue critical components, important technology areas were identified.

  9. Decision Support Systems for Research and Management in Advanced Life Support

    NASA Technical Reports Server (NTRS)

    Rodriquez, Luis F.

    2004-01-01

    Decision support systems have been implemented in many applications including strategic planning for battlefield scenarios, corporate decision making for business planning, production planning and control systems, and recommendation generators like those on Amazon.com(Registered TradeMark). Such tools are reviewed for developing a similar tool for NASA's ALS Program. DSS are considered concurrently with the development of the OPIS system, a database designed for chronicling of research and development in ALS. By utilizing the OPIS database, it is anticipated that decision support can be provided to increase the quality of decisions by ALS managers and researchers.

  10. Application of voice recognition input to decision support systems

    NASA Astrophysics Data System (ADS)

    Drake, Robert G.

    1988-12-01

    The goal of this study is to provide a single source of data that enables the selection of an appropriate voice recognition (VR) application for a decision support system (DSS) as well as for other computer applications. A brief background of both voice recognition systems and decision support systems is provided with special emphasis given to the dialog component of DSS. The categories of voice recognition discussed are human factors, host computer factors, and experiments and research. Each of these areas of voice recognition is individually analyzed, and specific references to applicable literature are included. This study also includes appendices that contain: A glossary (including definitions) of phrases specific to both decision support system and voice recognition systems, keywords applicable to this study, an annotated bibliography (alphabetically and by specific topics) of current VR systems literature containing over 200 references, an index of publishers, and a complete listing of current commercially available VR systems.

  11. Evaluation of a decision support system in a medical environment

    Microsoft Academic Search

    François M. H. M. Dupuits; Arie Hasman

    1995-01-01

    This paper describes the impact of a decision support system on the quality of recorded diagnoses and the completeness of medical records. The assumption is that for quality assessment purposes enough data have to be recorded in an electronic medical record so that diagnostic decisions can be justified. The hypotheses were tested that active decision support will lead to better

  12. A decision support system for environmental effects monitoring

    Microsoft Academic Search

    William G. Booty; Isaac W. S. Wong; David C.-L. Lam; Oskar Resler

    2009-01-01

    The Environmental Effects Monitoring (EEM) Statistical Assessment Tool (SAT) Decision Support System (DSS) has been developed to provide a user-friendly data analysis, display and decision support tool for Canada's federal environmental effects monitoring program for the pulp and paper and mining industries. The target users include industries, consultants, regional EEM coordinators, National EEM Office and scientists involved in EEM-related research.

  13. The Library as a Support System for Students

    ERIC Educational Resources Information Center

    Jurkowski, Odin L.

    2006-01-01

    For many students who have a mild to moderate learning, emotional, social, or mental problems, the school librarian is an unparalleled resource, and the library becomes a refuge and an important support system outside of the general classroom. This article provides a brief review of literature and concrete information on creating a supportive

  14. Designing Electronic Performance Support Systems: Models and Instructional Strategies Employed

    ERIC Educational Resources Information Center

    Nekvinda, Christopher D.

    2011-01-01

    The purpose of this qualitative study was to determine whether instructional designers and performance technologists utilize instructional design models when designing and developing electronic performance support systems (EPSS). The study also explored if these same designers were utilizing instructional strategies within their EPSS to support

  15. Scaffolding Strategies in Electronic Performance Support Systems: Types and Challenges

    ERIC Educational Resources Information Center

    Cagiltay, Kursat

    2006-01-01

    In the study described in this paper, the major components of an electronic performance support system are described and the use of scaffolding techniques within such electronic environments is explored. Four different types of scaffolding are discussed: "conceptual" (supportive) scaffolding, "metacognitive" (reflective) scaffolding, "procedural"…

  16. A Mobile-Device-Supported Brain-Friendly Reading System

    Microsoft Academic Search

    Yu-ju Lan; Yao-ting Sung; Kuo-en Chang

    2008-01-01

    The purposes of this study were to implement a brain-friendly learning environment for EFL early reading by a mobile-device-supported computer assisted reciprocal early English reading (CAREER) system and evaluate its effect upon elementary EFL learners' early reading skills. Results appeared that the students were benefited by collaborating with each other with the support of CAREER.

  17. Human Health and Support Systems Capability Roadmap Progress Review

    NASA Technical Reports Server (NTRS)

    Grounds, Dennis; Boehm, Al

    2005-01-01

    The Human Health and Support Systems Capability Roadmap focuses on research and technology development and demonstration required to ensure the health, habitation, safety, and effectiveness of crews in and beyond low Earth orbit. It contains three distinct sub-capabilities: Human Health and Performance. Life Support and Habitats. Extra-Vehicular Activity.

  18. Intelligent Decision Support System for Breast Cancer

    Microsoft Academic Search

    R. R. Janghel; Anupam Shukla; Ritu Tiwari; Rahul Kala

    2010-01-01

    \\u000a Breast cancer is the second leading cause of cancer deaths in women worldwide and occurs in nearly one out of eight women.\\u000a Currently there are three techniques to diagnose breast cancer: mammography, FNA (Fine Needle Aspirate) and surgical biopsy.\\u000a In this paper we develop an integrated expert system for diagnosis, prognosis and prediction for breast cancer using soft\\u000a computing techniques.

  19. The Spartan attitude control system - Ground support computer

    NASA Technical Reports Server (NTRS)

    Schnurr, R. G., Jr.

    1986-01-01

    The Spartan Attitude Control System (ACS) contains a command and control computer. This computer is optimized for the activities of the flight and contains very little human interface hardware and software. The computer system provides the technicians testing of Spartan ACS with a convenient command-oriented interface to the flight ACS computer. The system also decodes and time tags data automatically sent out by the flight computer as key events occur. The duration and magnitude of all system maneuvers is also derived and displayed by this system. The Ground Support Computer is also the primary Ground Support Equipment for the flight sequencer which controls all payload maneuvers, and long term program timing.

  20. RSHARD -Hard Disk Driver Package Copyright 1987, MISOSYS, Inc., All rights reserved

    E-print Network

    Mann, Tim

    THE HARD DRIVE DISK DRIVER ....................... 5 FORMATTING THE HARD DRIVE disk driver which supports certain hard drive assemblies manufactured by the Tandy Corporation the Western Digital WD1000 or WD1010 hard disk controller. The driver supports a single drive of up to 1024

  1. Optimization of the ATST primary mirror support system

    NASA Astrophysics Data System (ADS)

    Cho, Myung K.; Price, Ronald S.; Moon, Il K.

    2006-06-01

    The Advanced Technology Solar Telescope (ATST) primary mirror is a 4.24-m diameter, 75-mm thick, off-axis parabola solid meniscus mirror made out of a glass or glass ceramic material. Its baseline support system consists of 120 axial supports mounted at the mirror back surface and 24 lateral supports along the outer edge with an active optics capability. This primary mirror support system was optimized for the telescope at a near horizon position to achieve the best gravity and thermal effects. To fulfill the optical and mechanical performance requirements, extensive finite element analyses using I-DEAS and optical analyses with PCFRINGE have been conducted for the support optimization. Analyses include static deformation (gravity and thermal), frequency calculations, and support system sensitivity evaluations. An influence matrix was established to compensate potential errors using an active optics system. Performances of the primary mirror support system were evaluated from mechanical deformation calculations and the optical analyses before and after active optics corrections. The performance of the mirror cell structure was also discussed.

  2. Interior detail, view to northnortheast showing support system for roof ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    Interior detail, view to north-northeast showing support system for roof truss (typical), 90 mm lens plus electronic flash lighting. - Travis Air Force Base, Readiness Maintenance Hangar, W Street, Air Defense Command Readiness Area, Fairfield, Solano County, CA

  3. A proposed ecosystem services classification system to support green accounting

    EPA Science Inventory

    There are a multitude of actual or envisioned, complete or incomplete, ecosystem service classification systems being proposed to support Green Accounting. Green Accounting is generally thought to be the formal accounting attempt to factor environmental production into National ...

  4. Automation and Accountability in Decision Support System Interface Design

    E-print Network

    Cummings, M. L.

    2006-01-01

    When the human element is introduced into decision support system design, entirely new layers of social and ethical issues emerge but are not always recognized as such. This paper discusses those ethical and social impact ...

  5. Personal Privacy in Ubiquitous Computing Tools and System Support

    E-print Network

    Beobachtungsdaten statt Faktenwissen Datenzugriff Das ,,Internet der Dinge" Privacy ist nicht das Problem andererPersonal Privacy in Ubiquitous Computing Tools and System Support Marc Langheinrich #12;Personal Privacy in Ubiquitous Computing 2 Ubiquitous Computing und Privacy Disappearing Computer Troubadour

  6. Sub-Nyquist Radar Sensing Hardware and Supporting System

    E-print Network

    Eldar, Yonina

    between devices Connectivity- AWR RF simulation environment to LabView LabView based GUI Software #12; detected Clutter filtered Supporting Hardware NI System NI 8133 I7 controller Run AWR , LabView and MATLAB

  7. COMPUTER SUPPORTED ARGUMENTATION AND COLLABORATIVE DECISION MAKING: THE HERMES SYSTEM

    E-print Network

    Papadias, Dimitris

    decision maker may adopt and, consequently, suggest his/her own strategy that fulfills some goalsCOMPUTER SUPPORTED ARGUMENTATION AND COLLABORATIVE DECISION MAKING: THE HERMES SYSTEM NIKOS, Hong Kong Abstract - Collaborative Decision Making problems can be addressed through argumentative

  8. Hydrological dispersion module of the decision support system RODOS

    Microsoft Academic Search

    M. Zheleznyak; R. Heling

    2002-01-01

    The Hydrological Dispersion Module (HDM) of the RODOS (real-time on-line decision support) system for nuclear emergency management in Europe is under development at IMMSP Ukraine; at NRG, The Netherlands; at FZK, Germany; at SPA \\

  9. An Analysis of Hybrid Life Support Systems for Sustainable Habitats

    E-print Network

    Shaw, Margaret Miller

    2014-01-01

    The design of sustainable habitats on Earth, on other planetary surfaces, and in space, has motivated strategic planning with respect to life support (LS) system technology development and habitat design. Such planning ...

  10. Supporting Collaborative Work in Integrated Information Systems Engineering Environments

    Microsoft Academic Search

    John C. Grundy; John R. Venable; John G. Hosking; Warwick B. Mugridge

    1996-01-01

    The development of complex Information Systems requires many Information Systems engineering tools. These diverse tools need to be integrated in order to be effectively used by multiple developers. In addition, these developers require features that facilitate effective cooperation, such as support for collaboratively planning work, notification of changes to parts of a system under development (but only when necessary or

  11. Decision support system for thermal power plant siting (SDSS)

    Microsoft Academic Search

    Wang Guangsheng; Hu Zhaoguang; Wang Pingyang

    1993-01-01

    On the basis of new technologies such as fuzzy sets, analytic hierarchy process and expert systems etc., a practical decision support system for thermal power plant siting (SDSS) has been set up and is presented in this paper. SDSS, as displayed on the PC screen, consists of ten parts: introduction, system maintenance, individual decision, clear database, consultation, auxiliary operation, multiple

  12. ERP Systems and Decision Support – An Exploratory Study

    Microsoft Academic Search

    Ravi Seethamraju

    2007-01-01

    Implementing Enterprise Resource Planning (ERP) systems, the most significant IT development in recent times, affects all aspects of organizational life. While the positive impact of ERP systems on operational efficiencies is well established in the literature, the relationship between ERP systems, decision support capability and decision-making processes has been inadequately investigated in the past. Taking an interpretive case study approach,

  13. Supervisory control synthesis for a patient support system

    Microsoft Academic Search

    R. J. M. Theunissen; R. R. H. Schiffelers; D. A. van Beek; J. E. Rooda

    2009-01-01

    Supervisory control theory (SCT) provides a for- mal approach to supervisory controller synthesis. In this paper, SCT is used to design a supervisory controller for a patient support system. This system is used to position a patient in a Magnetic Resonance Imaging (MRI) scanner. To improve the evolvability of the design, the uncontrolled system and the control requirements are modeled

  14. Research on water resources decision support system integrated with facilities

    Microsoft Academic Search

    Li Gongquan; Xiao Keyan

    2011-01-01

    Water Resources and Facilities closely linked to Agricultural production is one of critical factors of restricting sustainable development. The existing system has not integrated all of the spatial data about water resources. This article introduces design and implementation of water resources Decision supports system integrated with facilities in detail. The system design goal and basic principle are put forward firstly.

  15. A stereo vision system for support of planetary surface exploration

    E-print Network

    Pollefeys, Marc

    A stereo vision system for support of planetary surface exploration Maarten Vergauwen, Marc contains a stereo head equipped with a pan-tilt mechanism. This vision system is used both for model- ing to the stress that occurs during the flight a recalibra- tion of the stereo vision system is required once

  16. Intelligence vague information analysis and decision support system

    Microsoft Academic Search

    Anyang Su

    2002-01-01

    With a rapid growth of interest in recent years, vague set has become an effective tool to handle inexact data in the fields of fuzzy information processing. In this paper, I use vague set theory on information analysis and decision support system, set up vague information analysis system, and develop fuzzy gray matter element space decision system into vague gray

  17. Distribution System Analysis to support the Smart Grid

    Microsoft Academic Search

    R. C. Dugan; R. F. Arritt; T. E. McDermott; S. M. Brahma; K. Schneider

    2010-01-01

    The “Smart Grid” refers to various efforts to modernize the power grid through the application of intelligent devices. This paper describes current thinking by members of the Distribution System Analysis Subcommittee (DSA SC) on how distribution system analysis might evolve to support the Smart Grid. Various issues related to Smart Grid and distribution system analysis are identified. The essential characteristics

  18. Unmanned systems initiative: supporting immediate warfighter needs and army transformation

    Microsoft Academic Search

    P. B. DiNardo; S. B. Andrews

    2005-01-01

    Unmanned systems have emerged as a critical warfighting capability for operation Iraqi freedom (OIF) and operation enduring freedom (OEF) and form a cornerstone of the Army's transformational flagship program, future combat systems (FCS). The unmanned systems initiative (USI), a congressionally supported program managed by the US Army Aviation and Missile Research, Development and Engineering Center (AMRDEC), is responding to these

  19. Johnson Space Center's Regenerative Life Support Systems Test Bed

    NASA Technical Reports Server (NTRS)

    Barta, D. J.; Henninger, D. L.

    1996-01-01

    The Regenerative Life Support Systems (RLSS) Test Bed at NASA's Johnson Space Center is an atmospherically closed, controlled environment facility for human testing of regenerative life support systems using higher plants in conjunction with physicochemical life support systems. The facility supports NASA's Advanced Life Support (ALS) Program. The facility is comprised of two large scale plant growth chambers, each with approximately 11 m2 growing area. The root zone in each chamber is configurable for hydroponic or solid media plant culture systems. One of the two chambers, the Variable Pressure Growth Chamber (VPGC), is capable of operating at lower atmospheric pressures to evaluate a range of environments that may be used in a planetary surface habitat; the other chamber, the Ambient Pressure Growth Chamber (APGC) operates at ambient atmospheric pressure. The air lock of the VPGC is currently being outfitted for short duration (1 to 15 day) human habitation at ambient pressures. Testing with and without human subjects will focus on 1) integration of biological and physicochemical air and water revitalization systems; 2) effect of atmospheric pressure on system performance; 3) planetary resource utilization for ALS systems, in which solid substrates (simulated planetary soils or manufactured soils) are used in selected crop growth studies; 4) environmental microbiology and toxicology; 5) monitoring and control strategies; and 6) plant growth systems design. Included are descriptions of the overall design of the test facility, including discussions of the atmospheric conditioning, thermal control, lighting, and nutrient delivery systems.

  20. Johnson Space Center's Regenerative Life Support Systems Test Bed.

    PubMed

    Barta, D J; Henninger, D L

    1996-01-01

    The Regenerative Life Support Systems (RLSS) Test Bed at NASA's Johnson Space Center is an atmospherically closed, controlled environment facility for human testing of regenerative life support systems using higher plants in conjunction with physicochemical life support systems. The facility supports NASA's Advanced Life Support (ALS) Program. The facility is comprised of two large scale plant growth chambers, each with approximately 11 m2 growing area. The root zone in each chamber is configurable for hydroponic or solid media plant culture systems. One of the two chambers, the Variable Pressure Growth Chamber (VPGC), is capable of operating at lower atmospheric pressures to evaluate a range of environments that may be used in a planetary surface habitat; the other chamber, the Ambient Pressure Growth Chamber (APGC) operates at ambient atmospheric pressure. The air lock of the VPGC is currently being outfitted for short duration (1 to 15 day) human habitation at ambient pressures. Testing with and without human subjects will focus on 1) integration of biological and physicochemical air and water revitalization systems; 2) effect of atmospheric pressure on system performance; 3) planetary resource utilization for ALS systems, in which solid substrates (simulated planetary soils or manufactured soils) are used in selected crop growth studies; 4) environmental microbiology and toxicology; 5) monitoring and control strategies; and 6) plant growth systems design. Included are descriptions of the overall design of the test facility, including discussions of the atmospheric conditioning, thermal control, lighting, and nutrient delivery systems. PMID:11538966

  1. Controlled Ecological Life Support Systems: Natural and Artificial Ecosystems

    NASA Technical Reports Server (NTRS)

    Macelroy, Robert D. (editor); Thompson, Brad G. (editor); Tibbitts, Theodore W. (editor); Volk, Tyler (editor)

    1989-01-01

    The scientists supported by the NASA sponsored Controlled Ecological Life Support Systems (CELSS) program have played a major role in creating a Committee on Space Research (COSPAR) section devoted to the development of bioregenerative life support for use in space. The series of 22 papers were sponsored by Subcommission F.4. The papers deal with many of the diverse aspects of life support, and with outgrowth technologies that may have commercial applications in fields such as biotechnology and bioengineering. Papers from researchers in France, Canada, Japan and the USSR are also presented.

  2. Overview of NASA's Environmental Control and Life Support Systems

    NASA Technical Reports Server (NTRS)

    Roman, Monserrate

    2009-01-01

    This viewgraph presentation reviews NASA's Environmental Control and Life Support Systems (ECLSS) on the International Space Station. A look inside of the International Space Station detailing ECLSS processes of controlling atmospheric pressure, conditioning the atmosphere, responding to emergency conditions, controlling internal carbon dioxide and contaminants and providing water are described. A detailed description of ISS Regenerative Environmental Control and Life Support System is also presented.

  3. Assessing Today: Determining the Decision Value of Decision Support Systems

    Microsoft Academic Search

    Gloria Phillips-Wren; Manuel Mora; Guisseppi Forgionne

    \\u000a Decision support systems (DSS) have been assessed on the basis of single criteria such as the improvement in decision outcome,\\u000a and using multiple criteria such as the perspectives of different stakeholders. This paper uses a systems approach to extend\\u000a previous studies by linking the type of support provided to the decision maker with the specific DSS design characteristics\\u000a needed to

  4. Automated support requirement system user's guide for nondata entry personnel

    NASA Technical Reports Server (NTRS)

    Maryland, J. E., Jr.

    1985-01-01

    ASRS provides the capability to process intercenter/agency support requirements and commitments necessary for support of the Space Shuttle Launch and Landing, Flight, and Cargo operations. The instructions and commands that users will be allowed to utilize are presented. ASRS utilizes a data base stored on Honeywell DPS8 computer. ASRS programs are written in COBOL 74 utilizing the Honeywell DMIV-TP Processing System and the GCOS8 Operating System; they can also be accessed through Telenet or Datanet.

  5. Improving Driver Alertness through Music Selection Using a Mobile EEG to Detect Brainwaves

    PubMed Central

    Liu, Ning-Han; Chiang, Cheng-Yu; Hsu, Hsiang-Ming

    2013-01-01

    Driving safety has become a global topic of discussion with the recent development of the Smart Car concept. Many of the current car safety monitoring systems are based on image discrimination techniques, such as sensing the vehicle drifting from the main road, or changes in the driver's facial expressions. However, these techniques are either too simplistic or have a low success rate as image processing is easily affected by external factors, such as weather and illumination. We developed a drowsiness detection mechanism based on an electroencephalogram (EEG) reading collected from the driver with an off-the-shelf mobile sensor. This sensor employs wireless transmission technology and is suitable for wear by the driver of a vehicle. The following classification techniques were incorporated: Artificial Neural Networks, Support Vector Machine, and k Nearest Neighbor. These classifiers were integrated with integration functions after a genetic algorithm was first used to adjust the weighting for each classifier in the integration function. In addition, since past studies have shown effects of music on a person's state-of-mind, we propose a personalized music recommendation mechanism as a part of our system. Through the in-car stereo system, this music recommendation mechanism can help prevent a driver from becoming drowsy due to monotonous road conditions. Experimental results demonstrate the effectiveness of our proposed drowsiness detection method to determine a driver's state of mind, and the music recommendation system is therefore able to reduce drowsiness. PMID:23803789

  6. Improving driver alertness through music selection using a mobile EEG to detect brainwaves.

    PubMed

    Liu, Ning-Han; Chiang, Cheng-Yu; Hsu, Hsiang-Ming

    2013-01-01

    Driving safety has become a global topic of discussion with the recent development of the Smart Car concept. Many of the current car safety monitoring systems are based on image discrimination techniques, such as sensing the vehicle drifting from the main road, or changes in the driver's facial expressions. However, these techniques are either too simplistic or have a low success rate as image processing is easily affected by external factors, such as weather and illumination. We developed a drowsiness detection mechanism based on an electroencephalogram (EEG) reading collected from the driver with an off-the-shelf mobile sensor. This sensor employs wireless transmission technology and is suitable for wear by the driver of a vehicle. The following classification techniques were incorporated: Artificial Neural Networks, Support Vector Machine, and k Nearest Neighbor. These classifiers were integrated with integration functions after a genetic algorithm was first used to adjust the weighting for each classifier in the integration function. In addition, since past studies have shown effects of music on a person's state-of-mind, we propose a personalized music recommendation mechanism as a part of our system. Through the in-car stereo system, this music recommendation mechanism can help prevent a driver from becoming drowsy due to monotonous road conditions. Experimental results demonstrate the effectiveness of our proposed drowsiness detection method to determine a driver's state of mind, and the music recommendation system is therefore able to reduce drowsiness. PMID:23803789

  7. Infrastructure support for Clinical Information Systems

    SciTech Connect

    McGovern, Greg, A.

    2007-06-15

    Executive Summary: For the past 5 years, Adventist Health has been implementing a clinical information system, titled Project IntelliCare, throughout its 19 hospitals. To successfully do this, a commitment was made to ensure continuous availability of vital patient health information to the local hospitals. This commitment required a centralized data center with sufficient capacity and a backup data center to be used in case of technical software or natural disaster where interruptions could occur. The DOE grant provided financial assistance to purchase equipment to increase the capacity of an existing data center, along with purchase of more sophisticated software for the data center thus providing a reduction in time that information is unavailable to the local hospitals when hardware or software problems occur. Relative to public good, this translates into increased safety and convenience for the patients we serve because their electronic medical records are current and available a higher percentage of the time.

  8. Using Driver Type to Better Predict Drivers' Adaptive Cruise Control Settings

    E-print Network

    Kraus, Sarit

    Using Driver Type to Better Predict Drivers' Adaptive Cruise Control Settings Avi Rosenfeld1@umich.edu, omer.tsimhoni@gm.com Abstract. Adaptive Cruise Control (ACC) is a technology that allows a vehicle generation of cruise controls­ adaptive cruise control (ACC). ACC is designed as a comfort-enhancing system

  9. Vehicle Management Driver Safety Program

    E-print Network

    Machel, Hans

    enforcement, or otherwise used to provide information relative to compliance investigations. Driver NameVehicle Management and Driver Safety Program Manual Facilities & Operations / Finance & Administration Version 2 April 2012 #12;© 2012 University of Alberta. #12;The Vehicle Management and Driver

  10. Help Wanted: Drivers.

    ERIC Educational Resources Information Center

    Hoober, Scott

    1999-01-01

    A booming economy and low unemployment make it harder than ever before to lure and retain good school-bus drivers. Lack of money for good wages has prompted some innovative recruitment and retention tactics. Chicago has turned to the rolls of people going off welfare as a source of bus-driver candidates. The Trans Group, headquartered in Chestnut…

  11. Organizational Structures and Processes to Support and Sustain Effective Technical Assistance in a State-Wide Multi-Tiered System of Support Initiative

    ERIC Educational Resources Information Center

    Morrison, Julie Q.; Russell, Christine; Dyer, Stephanie; Metcalf, Terri; Rahschulte, Rebecca L.

    2014-01-01

    Despite the national proliferation of technical assistance as a driver for school reform and as a model for embedded and sustained professional development, very little is known about the organizational structures and processes needed to support technical assistance. The purpose of this paper is to describe a structured needs assessment process…

  12. Bevel gear driver and method having torque limit selection

    NASA Technical Reports Server (NTRS)

    Cook, Joseph S., Jr. (inventor)

    1994-01-01

    This invention comprises a torque drive mechanism utilizing axially translatable, mutually engageable transmission members having mating crown gears, driven and driving members with a three-element drive train being biased together by resilient means or by a fluid actuator system, the apparatus being operable to transmit a precisely controlled degree of torque to a driven member. The apparatus is applicable for use in hand tools and as a replacement for impact torque drivers, torque wrenches, motorized screw drivers, or the like, wherein the applied torque must be precisely controlled or limited. The bevel torque drive includes a drive gear which is axially displaceable and rotatable within cylindrical driver housing, a rotatable intermediate gear, and an output gear. Key rotationally secures displaceable gear with respect to input shaft but permits axial movement therebetween. A thrust bearing is preferably connected to the lower end of shaft for support to reduce play and friction between shaft and a transmission joint disc during rotation of the gear train. Coaxially mounted coiled spring is footed against displaceable gear for biasing the displaceable gear toward and into engagement with the intermediate gear for driving intermediate gear and output gear. Torque control is achieved by the use of straight or spiral beveled gears which are of configurations adapted to withdraw from mutual engagement upon the torque exceeding a predetermined limit. The novel, advantageous features of the invention include the configuration of the mating, crown gear sets and the axially translatable, slidable drive gear. The mechanism is capable of transmitting a high degree of torque within a narrow, compact transmission housing. The compact size and narrow, elongated configuration of the housing is particularly applicable for use in hand tools and in multiple torque driver mechanisms in which it is necessary to drive multiple fasteners which are located in close proximity. Prior torque drivers such as 'click-type' torque wrenches do not actually limit torque application but only provide an audible warning that the limit has been reached.

  13. Evaluation of a program to enhance young drivers’ safety in Israel

    Microsoft Academic Search

    Tomer Toledo; Tsippy Lotan; Orit Taubman-Ben-Ari; Einat Grimberg

    Young drivers in Israel, as in other parts of the world, are involved in car crashes more than any other age group. The graduated driver licensing system in Israel requires that all new drivers be accompanied by an experienced driver whenever they drive for the first 3months after obtaining a driving license. In an effort to make the accompanied driving

  14. The effect of teenage passengers on the fatal crash risk of teenage drivers

    Microsoft Academic Search

    David F. Preusser; Susan A. Ferguson; Allan F. Williams

    1998-01-01

    Fatal crash-involved drivers of passenger vehicles were identified in the Fatality Analysis Reporting System for the period 1990 through 1995. Each driver was categorized as being alone in the vehicle at the time of the crash or with one or more passengers. Drivers at fault or responsible for crash occurrence were defined as all drivers involved in a single-vehicle crash,

  15. RTEMS CENTRE - Support and Maintenance CENTRE to RTEMS Operating System

    NASA Astrophysics Data System (ADS)

    Silva, H.; Constantino, A.; Mota, M.; Freitas, D.; Zulianello, M.

    2007-08-01

    Real Time Operating System for Multiprocessor Systems (RTEMS) CENTRE is a project under the ESA-Portugal Task Force aiming to develop a support and maintenance centre to RTEMS operating system. The project can be summarized in two main streams, first one related to design, development, maintenance and integration of tools to augment and sustain RTEMS operating system and second stream linked to the creation of technical competences with a support site to RTEMS operating system in Europe. RTEMS CENTRE intends to minimize the cost of the incorporation/integration of airborne and space applications in this Real Time Operating System. The centre started officially in the 15th of November 2006 and is currently in the study definition and system engineering phase.

  16. Nanomaterials for Advanced Life Support in Advanced Life Support in Space systems

    NASA Technical Reports Server (NTRS)

    Allada, Rama Kumar; Moloney, Padraig; Yowell, Leonard

    2006-01-01

    A viewgraph presentation describing nanomaterial research at NASA Johnson Space Center with a focus on advanced life support in space systems is shown. The topics include: 1) Introduction; 2) Research and accomplishments in Carbon Dioxide Removal; 3) Research and Accomplishments in Water Purification; and 4) Next Steps

  17. Drivers of cost and health-related quality of life in patients with systemic lupus erythematosus (SLE): a Swedish nationwide study based on patient reports.

    PubMed

    Bexelius, C; Wachtmeister, K; Skare, P; Jönsson, L; Vollenhoven, R van

    2013-07-01

    The objective of this paper is to investigate drivers of cost and health-related quality of life (HRQoL) related to disease activity and fatigue among patients with systemic lupus erythematous (SLE). A questionnaire was sent to members of a patient organization with a self-reported diagnosis of SLE, requesting information on demographics and disease characteristics, medications, resource utilization, informal care, loss of productivity, fatigue and HRQoL in relation to SLE. Mean annual costs per patient were estimated from a societal perspective. HRQoL was measured through EQ-5D and fatigue was measured through a 10?cm VAS scale. Patient-reported disease activity was measured through the Systemic Lupus Activity Questionnaire (SLAQ) and corticosteroid dose. Drivers of costs and HRQoL were analyzed through regression analysis. A total of 339 patients out of 737 returned the questionnaire. Mean age was 55; 94% were female. The mean HRQoL measured through the five-item EQ-5D instrument was 0.64 and total costs were estimated at €22,594 (direct costs €7818; indirect costs €14,776). Disease activity, fatigue and corticosteroid doses had a statistically significant impact on costs and HRQoL. This study demonstrates that Swedish patients with SLE have low HRQoL and incur high societal costs and that are both associated with and most likely driven by disease activity, fatigue and corticosteroid use. PMID:23761101

  18. Decision Support System for Cephalometric Analyses of Orthodontics

    Microsoft Academic Search

    Shu-Li Wang; Shin-Lian Wang; Fan Wu

    2009-01-01

    The paper develops a decision support system for orthodontics, which is evidence-based and can reduce the bias of subjective judgments of orthodontists, meet the expectation of the patients, and increase the cost performance and effectiveness. The steps of constructing the system can be divided into eight steps, selecting influencing factors, adjust images, measurement of image, collecting related data, validation rules,

  19. A decision support system for green dyeing performance evaluation

    Microsoft Academic Search

    Yi Yang; Xue-fen Wan; Tao Zheng

    2010-01-01

    A decision support system (DSS) for green dyeing enterprise performance evaluation is present in this paper. The DSS system provides not only environmental evaluation about dyeing enterprise, but also enterprise financial performance. The evaluations about environmental and financial aspect are scaled by respective factor. Green development analysis and forecasting are included in the DSS too. The result of enterprise performance

  20. Transportation Decision Support Systems Oak Ridge National Laboratory

    E-print Network

    for the U.S. Department of Energy under Contract number DE-AC05-00OR22725 Research Areas Freight Flows focused on solving the customer's problems. Use of state of the art optimization software tools. Use Decision Support systems for government customers. The Consolidated Air Mobility Planning System (CAMPS

  1. Class library implementation of an open architecture knowledge support system

    Microsoft Academic Search

    Brian R. Gaines

    1994-01-01

    Object-oriented class libraries offer the potential for individual researchers to manage the large bodies of code generated in the experimental development of complex interactive systems. This article analyzes the structure of such a class library that supports the rapid prototyping of a wide range of systems including collaborative networking, shared documents, hypermedia, machine learning, knowledge acquisition and knowledge representation, and

  2. Decision Support System Effectiveness: A Review and an Empirical Test

    Microsoft Academic Search

    Ramesh Sharda; Steve H. Barr; James C. McDonnell

    1988-01-01

    Despite the increasing popularity of decision support systems (DSS), effectiveness of such systems remains unproven. Past research claiming usefulness of the DSS has relied largely on anecdotal or case data. The relatively few laboratory experiments report mixed results regarding the effects of a decision aid. This study reviews the results of prior investigations and examines the effectiveness of DSS-aided decision

  3. Support knowledge transfer in process of ERP system

    Microsoft Academic Search

    Gang Xu; Junlin Li; Jing Liu

    2011-01-01

    In recent years, information in an enterprise break out, managers cannot deal with millions of information, they need to organize the information in an efficient way, they want to get the information of sales, financial, support chain immediately, so comes the ERP system. The ERP system contains the most useful model of business, however, the model must meet the requirement

  4. An online examination system supporting user-defined question type

    Microsoft Academic Search

    Shan Wei-feng; Huang Meng; Li Jun

    2010-01-01

    The online examination system not only reflects the justification and objectivity of examination, but also releases the workload of teachers, which is accepted by more and more schools, certification organizations and training organizations. Most online examination systems only support several fixed question types and don't allow users define their own question types, so they have pool scalability. This paper proposes

  5. Ultrasonic Applications for Space Based Life Support Systems

    Microsoft Academic Search

    Amos Steve Johnson

    1990-01-01

    The extreme reduction of gravitational acceleration forces in space-born environments allows the behavior of fluids to be dominated by forces normally masked by gravity. This altered behavior presents challenges and opportunities in the design of systems expected to operate in space. The dependence of life support systems on such fluid interactions to accomplish various processes can not be overlooked. For

  6. Solar car cruising strategy and its supporting system

    Microsoft Academic Search

    Yasuo Shimizu; Yasuyuki Komatsu; Minoru Torii; Masato Takamuro

    1998-01-01

    Cruising strategy in a solar car race consists of the techniques used to generate as much power as possible under fluctuating weather conditions while cruising at the highest speed possible with minimal motor power consumption. This paper introduces the Cruising Strategy Supporting System used by the Honda Team for the third World Solar Challenge as a concrete example. This system

  7. Integrating Wraparound into a Schoolwide System of Positive Behavior Supports

    ERIC Educational Resources Information Center

    Eber, Lucille; Hyde, Kelly; Suter, Jesse C.

    2011-01-01

    We describe the structure for implementation of the wraparound process within a multi-tiered system of school wide positive behavior support (SWPBS) to address the needs of the 1-5% of students with complex emotional/behavioral challenges. The installation of prerequisite system features that, based on a 3 year demonstration process, we consider…

  8. Iris recognition system by using support vector machines

    Microsoft Academic Search

    Hasimah Ali; Momoh J. E. Salami; Wahyudi

    2008-01-01

    In recent years, with the increasing demands of security in our networked society, biometric systems for user verification are becoming more popular. Iris recognition system is a new technology for user verification. In this paper, the CASIA iris database is used for individual userpsilas verification by using support vector machines (SVMs) which based on the analysis of iris code as

  9. An AProlog decision support system for the Space M. Nogueira

    E-print Network

    Zhang, Yuanlin

    Advanced Technology Development Lab United Space Alliance Matthew.R.Barry@USAHQ.UnitedSpaceAllianceAn A­Prolog decision support system for the Space Shuttle M. Nogueira Department of Computer of such a system controlling some of the functions of the Space Shuttle. Keywords: answer set programming, logic

  10. Decision support system for open-pit lignite mining areas

    Microsoft Academic Search

    S. KADEN; L MICHELS; K. TDEMER

    1990-01-01

    Open-pit lignite mining has severe impacts on water resources systems. In the German Democratic Republic (GDR), for example, the amount of mine drainage water pumped by about 7000 dewatering wells exceeds 20% of the stable runoff of the whole country. A computerized decision support system (DSS) can be an efficient tool for the analysis of complicated water use problems in

  11. A learning support system for beginners in pencil drawing

    Microsoft Academic Search

    Saeko Takagi; Noriyuki Matsuda; Masato Soga; Hirokazu Taki; Takashi Shima; Fujiichi Yoshimoto

    2003-01-01

    A picture is one of important research subjects to make our life spiritually rich. Most studies on pictures, however, only propose some substitute functions of actual drawing or painting materials. There is no system that evaluates pictures drawn by users and gives advice about them. We propose a learning support system of beginner's pencil drawing that is the basis of

  12. Aqua: A Fast Decision Support System Using Approximate Query Answers

    E-print Network

    Gibbons, Phillip B.

    Aqua: A Fast Decision Support System Using Approximate Query Answers Swarup Acharya Phillip B Murray Hill NJ 07974 Abstract Aqua is a system for providing fast, approxi- mate answers to aggregate-to-date as the database changes. 1 Motivation Traditional query processing has focused solely on provid- ing exact answers

  13. An integrated design evaluation system supporting thermal-structural iterations

    Microsoft Academic Search

    Peter Eliasson; Ola Isaksson; Peter Jeppsson; Göran Fernström; Tobias C Larsson

    1998-01-01

    In the design of high temperature components, design evaluation often requires an iterative procedure between thermal fluid and thermal structural simulations An integrated computer system providing an iterative environment for the multidisciplinary simulations re quired has been developed. The system supports iterations between thermal fluid and thermal structural simulations using two different commercial simulation packages. Traditionally, fluid and structural analysis

  14. Title of Thesis: ARCHITECTURAL SUPPORT FOR EMBEDDED OPERATING SYSTEMS

    E-print Network

    Jacob, Bruce

    #12;ABSTRACT Title of Thesis: ARCHITECTURAL SUPPORT FOR EMBEDDED OPERATING SYSTEMS Degree candidate, events, and process scheduling in embedded operating systems. An otherwise normal content-addressable memory that is tailored to handle the most basic func- tions of a typical RTOS, the CCAM (configurable

  15. Separating Introspection and Intercession to Support Metamorphic Distributed Systems \\Lambda

    E-print Network

    Stirewalt, Kurt

    Separating Introspection and Intercession to Support Metamorphic Distributed Systems \\Lambda E. P. Kasten, P. K. McKinley, S. M. Sadjadi, and R. E. K. Stirewalt Software Engineering and Network Systems, forward error correction. 1 Introduction Increasingly, distributed applications are required to adapt

  16. Separating Introspection and Intercession to Support Metamorphic Distributed Systems

    E-print Network

    Sadjadi, S. Masoud

    to insulate application components from platform vari- ations and changes in network conditions and canSeparating Introspection and Intercession to Support Metamorphic Distributed Systems Ł E. P. Kasten, P. K. McKinley, S. M. Sadjadi, and R. E. K. Stirewalt Software Engineering and Network Systems

  17. Information Systems to Support Surveillance for Malaria Elimination.

    PubMed

    Ohrt, Colin; Roberts, Kathryn W; Sturrock, Hugh J W; Wegbreit, Jennifer; Lee, Bruce Y; Gosling, Roly D

    2015-07-01

    Robust and responsive surveillance systems are critical for malaria elimination. The ideal information system that supports malaria elimination includes: rapid and complete case reporting, incorporation of related data, such as census or health survey information, central data storage and management, automated and expert data analysis, and customized outputs and feedback that lead to timely and targeted responses. Spatial information enhances such a system, ensuring cases are tracked and mapped over time. Data sharing and coordination across borders are vital and new technologies can improve data speed, accuracy, and quality. Parts of this ideal information system exist and are in use, but have yet to be linked together coherently. Malaria elimination programs should support the implementation and refinement of information systems to support surveillance and response and ensure political and financial commitment to maintain the systems and the human resources needed to run them. National malaria programs should strive to improve the access and utility of these information systems and establish cross-border data sharing mechanisms through the use of standard indicators for malaria surveillance. Ultimately, investment in the information technologies that support a timely and targeted surveillance and response system is essential for malaria elimination. PMID:26013378

  18. Research of a virtual information system supporting dynamic collaboration

    Microsoft Academic Search

    Dan Tao; Yushun Fan; Cheng Wu; Qingsong Xu

    1999-01-01

    In the rapidly changing global competitive environment, dynamic collaboration among companies is required to bring a complementary set of competencies to address new market opportunity. To support this new relationship, an Agile Manufacturing Information System (AMIS) assisting the virtual enterprise to manage and control information flow among collaborating partners is described. Based on an analysis of the virtual information system

  19. A wireless breathing-training support system for kinesitherapy

    Microsoft Academic Search

    Hiroki Tawa; Yoshiharu Yonezawa; Hiromichi Maki; Hidekuni Ogawa; Ishio Ninomiya; Kouji Sada; Shingo Hamada; W. Morton Caldwell

    2009-01-01

    We have developed a new wireless breathing-training support system for kinesitherapy. The system consists of an optical sensor, an accelerometer, a microcontroller, a Bluetooth module and a laptop computer. The optical sensor, which is attached to the patient's chest, measures chest circumference. The low frequency components of circumference are mainly generated by breathing. The optical sensor outputs the circumference as

  20. Manipulating Managed Execution Runtimes to Support SelfHealing Systems

    E-print Network

    Manipulating Managed Execution Runtimes to Support Self­Healing Systems Rean Griffith Columbia University rg2023@cs.columbia.edu Gail Kaiser Columbia University kaiser@cs.columbia.edu ABSTRACT Self­healing to enable repair in a self­healing system is to use an external­ ized repair/adaptation architecture rather

  1. Manipulating Managed Execution Runtimes to Support Self-Healing Systems

    E-print Network

    Manipulating Managed Execution Runtimes to Support Self-Healing Systems Rean Griffith Columbia University rg2023@cs.columbia.edu Gail Kaiser Columbia University kaiser@cs.columbia.edu ABSTRACT Self-healing to enable repair in a self-healing system is to use an external- ized repair/adaptation architecture rather

  2. Fieldbus Device Drivers for Accelerator Control at DESY

    E-print Network

    Wu, H G

    2001-01-01

    In order to interface the DESY fieldbus adapter, SEDAC (SErial Data Acquisition and Control system), a full duplex device driver was developed for the Windows NT, Linux, VxWorks, and Solaris operating systems. Detailed driver development issues as well as a common user interface will be presented, along with a comparison of the device drivers among the different operating systems. In particular, we shall present benchmark results concerning general performance as well as ease of development.

  3. Fieldbus Device Drivers for Accelerator Control at DESY

    E-print Network

    H. G. Wu

    2001-11-21

    In order to interface the DESY fieldbus adapter, SEDAC (SErial Data Acquisition and Control system), a full duplex device driver was developed for the Windows NT, Linux, VxWorks, and Solaris operating systems. Detailed driver development issues as well as a common user interface will be presented, along with a comparison of the device drivers among the different operating systems. In particular, we shall present benchmark results concerning general performance as well as ease of development.

  4. Key Reliability Drivers of Liquid Propulsion Engines and A Reliability Model for Sensitivity Analysis

    NASA Technical Reports Server (NTRS)

    Huang, Zhao-Feng; Fint, Jeffry A.; Kuck, Frederick M.

    2005-01-01

    This paper is to address the in-flight reliability of a liquid propulsion engine system for a launch vehicle. We first establish a comprehensive list of system and sub-system reliability drivers for any liquid propulsion engine system. We then build a reliability model to parametrically analyze the impact of some reliability parameters. We present sensitivity analysis results for a selected subset of the key reliability drivers using the model. Reliability drivers identified include: number of engines for the liquid propulsion stage, single engine total reliability, engine operation duration, engine thrust size, reusability, engine de-rating or up-rating, engine-out design (including engine-out switching reliability, catastrophic fraction, preventable failure fraction, unnecessary shutdown fraction), propellant specific hazards, engine start and cutoff transient hazards, engine combustion cycles, vehicle and engine interface and interaction hazards, engine health management system, engine modification, engine ground start hold down with launch commit criteria, engine altitude start (1 in. start), Multiple altitude restart (less than 1 restart), component, subsystem and system design, manufacturing/ground operation support/pre and post flight check outs and inspection, extensiveness of the development program. We present some sensitivity analysis results for the following subset of the drivers: number of engines for the propulsion stage, single engine total reliability, engine operation duration, engine de-rating or up-rating requirements, engine-out design, catastrophic fraction, preventable failure fraction, unnecessary shutdown fraction, and engine health management system implementation (basic redlines and more advanced health management systems).

  5. A FOUNDATION FOR THE STUDY OF GROUP DECISION SUPPORT SYSTEMS

    Microsoft Academic Search

    GERARDINE DESANCTIS; R. BRENT GALLUPE

    Technical developments in electronic communication, computii^ and (tedsion support, couiried with new interest on the part of oiganizations to im|»x>ve meetii^ effectiveness, are purring research in the area of groi^ decision support systems (GDSS). A GDSS comlnnes communication, computing, and decision su|qx>rt technologies to &dlitate formulation and solution of unstructured problems by a groap of peo{de. This papo' presents a

  6. A Automated Tool for Supporting FMEAs of Digital Systems

    SciTech Connect

    Yue,M.; Chu, T.-L.; Martinez-Guridi, G.; Lehner, J.

    2008-09-07

    Although designs of digital systems can be very different from each other, they typically use many of the same types of generic digital components. Determining the impacts of the failure modes of these generic components on a digital system can be used to support development of a reliability model of the system. A novel approach was proposed for such a purpose by decomposing the system into a level of the generic digital components and propagating failure modes to the system level, which generally is time-consuming and difficult to implement. To overcome the associated issues of implementing the proposed FMEA approach, an automated tool for a digital feedwater control system (DFWCS) has been developed in this study. The automated FMEA tool is in nature a simulation platform developed by using or recreating the original source code of the different module software interfaced by input and output variables that represent physical signals exchanged between modules, the system, and the controlled process. For any given failure mode, its impacts on associated signals are determined first and the variables that correspond to these signals are modified accordingly by the simulation. Criteria are also developed, as part of the simulation platform, to determine whether the system has lost its automatic control function, which is defined as a system failure in this study. The conceptual development of the automated FMEA support tool can be generalized and applied to support FMEAs for reliability assessment of complex digital systems.

  7. Tongue-Supported Human-Computer Interaction systems: A review.

    PubMed

    Khan, Masood Mehmood; Sherazi, Hammad I; Quain, Rohan

    2014-08-01

    The tongue can substitute human sensory systems and has been used as a medium of input to help impaired patients communicate with the world. Innovative techniques have been employed to realize tongue movement, sense its position and exploit tongue dexterity, in order to achieve Tongue Supported Human Computer Interaction (TSHCI). This paper examines various approaches of using tongue dexterousness in TSHCI systems and introduces two infrared signal supported minimally-invasive TSHCI systems developed at Curtin University. Methods of sensing tongue movement and position are especially discussed and depending on the employed methods, TSHCI systems are categorized as either invasive or minimally-invasive. A set of system usability criteria is proposed to help build more effective TSHCI systems in future. PMID:25570232

  8. Inverse kinematics of redundant systems driver IKORv1.0-2.0 (full space parameterization with orientation control, platform mobility, and portability)

    SciTech Connect

    Hacker, C.J.; Fries, G.A.; Pin, F.G.

    1997-01-01

    Few optimization methods exist for path planning of kinematically redundant manipulators. Among these, a universal method is lacking that takes advantage of a manipulator`s redundancy while satisfying possibly varying constraints and task requirements. Full Space Parameterization (FSP) is a new method that generates the entire solution space of underspecified systems of algebraic equations and then calculates the unique solution satisfying specific constraints and optimization criteria. The FSP method has been previously tested on several configurations of the redundant manipulator HERMIES-III. This report deals with the extension of the FSP driver, Inverse Kinematics On Redundant systems (IKOR), to include three-dimensional manipulation systems, possibly incorporating a mobile platform, with and without orientation control. The driver was also extended by integrating two optimized versions of the FSP solution generator as well as the ability to easily port to any manipulator. IKOR was first altered to include the ability to handle orientation control and to integrate an optimized solution generator. The resulting system was tested on a 4 degrees-of-redundancy manipulator arm and was found to successfully perform trajectories with least norm criteria while avoiding obstacles and joint limits. Next, the system was adapted and tested on a manipulator arm placed on a mobile platform yielding 7 degrees of redundancy. After successful testing on least norm trajectories while avoiding obstacles and joint limits, IKORv1.0 was developed. The system was successfully verified using comparisons with a current industry standard, the Moore Penrose Pseudo-Inverse. Finally, IKORv2.0 was created, which includes both the one shot and two step methods, manipulator portability, integration of a second optimized solution generator, and finally a more robust and usable code design.

  9. Commercial Driver Education

    NSDL National Science Digital Library

    DMV.org provides of a variety of resources regarding vehicle registration and licensing information. Of particular interest to those interested in a commercial drivers license is their centralized information covering education and frequently asked questions for each state in the United States of America. This allows new drivers to quickly learn the specific rules for each state. Additionally, experienced drivers moving to a new state or traveling to a state they aren't familiar with can find quick concise information about the state of interest.

  10. Driver eye height measurement

    E-print Network

    Abrahamson, Anthony Daniel

    1978-01-01

    was establish d in the early sixties when passenger vehicles were styled differentl; than tnda; . The changing design of passenger cars has resulted in a considerable lowering in the eye heights of drivers between 1960 and 1978. The objective of this ress rch... of passenger cars now view the road from a height lower than 3. 75 ft but virtually none have driver eye heights less than 3. 25 ft (0. 99'tu). On t'nls basis it is recommended that a new driver eye height standard of 3. 25 ft (0. 99 m), or onc meter...

  11. Closure of regenerative life support systems: results of the Lunar-Mars Life Support Test Project

    NASA Astrophysics Data System (ADS)

    Barta, D.; Henninger, D.; Edeen, M.; Lewis, J.; Smith, F.; Verostko, C.

    Future long duration human exploration missions away from Earth will require closed-loop regenerative life support systems to reduce launch mass reduce dependency on resupply and increase the level of mission self sufficiency Such systems may be based on the integration of biological and physiocochemical processes to produce potable water breathable atmosphere and nutritious food from metabolic and other mission wastes Over the period 1995 to 1998 a series of ground-based tests were conducted at the National Aeronautics and Space Administration Johnson Space Center to evaluate the performance of advanced closed-loop life support technologies with real human metabolic and hygiene loads Named the Lunar-Mars Life Support Test Project LMLSTP four integrated human tests were conducted with increasing duration complexity and closure The first test LMLSTP Phase I was designed to demonstrate the ability of higher plants to revitalize cabin atmosphere A single crew member spent 15 days within an atmospherically closed chamber containing 11 2 square meters of actively growing wheat Atmospheric carbon dioxide and oxygen levels were maintained by control of the rate of photosynthesis through manipulation of light intensity or the availability of carbon dioxide and included integrated physicochemical systems During the second and third tests LMLSTP Phases II IIa four crew members spent 30 days and 60 days respectively in a larger sealed chamber Advanced physicochemical life support hardware was used to regenerate the atmosphere and produce potable water

  12. New Frontiers/Hale Prize Lecture: Coronal Mass Ejections, the Most Powerful Drivers of the Sun-Earth System

    NASA Astrophysics Data System (ADS)

    Antiochos, S. K.

    2005-05-01

    A large Coronal Mass Ejection (CME) can consist of billions of tonnes of matter, along with entangled magnetic field, erupting from the Sun at speeds well over 1,000 km/s. These giant disruptions of the solar atmosphere drive the most destructive space weather at Earth and throughout the solar system. Furthermore, CMEs are the most dramatic example of how slowly-evolving processes on the Sun can conspire to produce explosive activity. Understanding their origin has long been a central objective for space physics research. This talk will present some of the latest observations and theories for CMEs and discuss the outstanding challenges to modeling and predicting their initiation. This work was supported in part by NASA and ONR.

  13. A History of Spacecraft Environmental Control and Life Support Systems

    NASA Technical Reports Server (NTRS)

    Daues, Katherine R.

    2006-01-01

    A spacecraft's Environmental Control and Life Support (ECLS) system enables and maintains a habitable and sustaining environment for its crew. A typical ECLS system provides for atmosphere consumables and revitalization, environmental monitoring, pressure, temperature and humidity control, heat rejection (including equipment cooling), food and water supply and management, waste management, and fire detection and suppression. The following is a summary of ECLS systems used in United States (US) and Russian human spacecraft.

  14. An information system to support collaborative brain-tumor research

    Microsoft Academic Search

    Sandra A. Mamrak; Allan J. Yates

    1997-01-01

    We have developed and are currently maintaining a Neuro-Oncology Information System (NOIS) to support brain-tumor research.\\u000a The system has been adopted for use by a group of researchers at several centers in the U.S.A. who are collaborating to input,\\u000a store, and retrieve information concerning tissue specimens, corresponding clinical and diagnostic information, and eventual\\u000a research results. The information system consists of

  15. PDW - RAYTHEON TDU-850 PRINTER DRIVER FOR WINDOWS

    NASA Technical Reports Server (NTRS)

    Parrish, B. T.

    1994-01-01

    PDW is a Microsoft Windows printer driver for the Raytheon TDU-850 hardcopier. It provides a previously unavailable linkage between this printer and IBM PC compatibles running Microsoft Windows. This driver supports all the text and graphics features normally found in other laser printer drivers. The user can ensure true WYSIWYG (what you see is what you get) compatibility between the on-screen display of high-end application programs and the final hardcopy image because PDW supports the unique Microsoft Windows operating system requirement that printer drivers assist in the drawing of graphical objects on the video display as well as on the hardcopier. PDW can be called upon by the Windows Graphical Device Interface (GDI) to draw graphical objects (circles, lines, etc.) directly to the hardcopier or to render graphical objects to shared memory so that the objects can then be copied to the video screen by the screen driver. This allows Microsoft Windows, in conjunction with the screen driver, to provide maximum WYSIWYG fidelity while a document is being composed whenever PDW is selected. PDW can reside simultaneously on up to three separate PCs, each attached to a single Raytheon printer utilizing the printer's standard IEEE-488 (GPIB) interface. PDW contains special software to check for bus contention before attempting to access the printer. PDW is written in C-language for IBM PC series and compatible computers running MS-DOS v4.0 or later and Microsoft Windows v3.0 or later. It requires 8Mb of RAM for execution. PDW also requires a National Instruments PC-compatible GPIB board and cable and a Raytheon TDU-850 hardcopier. If the source code needs to be modified, a Microsoft Quick C for Windows compiler is required. The Microsoft UniTool may also be required if the source code is being completely rewritten for another printer. An electronic copy of the documentation is available on the media in Microsoft Word for Windows format. The standard distribution medium for PDW is a set of two 5.25 inch 360K MS-DOS format diskettes. PDW was developed in 1993.

  16. A study of driver's route choice behavior based on evolutionary game theory.

    PubMed

    Jiang, Xiaowei; Ji, Yanjie; Du, Muqing; Deng, Wei

    2014-01-01

    This paper proposes a route choice analytic method that embeds cumulative prospect theory in evolutionary game theory to analyze how the drivers adjust their route choice behaviors under the influence of the traffic information. A simulated network with two alternative routes and one variable message sign is built to illustrate the analytic method. We assume that the drivers in the transportation system are bounded rational, and the traffic information they receive is incomplete. An evolutionary game model is constructed to describe the evolutionary process of the drivers' route choice decision-making behaviors. Here we conclude that the traffic information plays an important role in the route choice behavior. The driver's route decision-making process develops towards different evolutionary stable states in accordance with different transportation situations. The analysis results also demonstrate that employing cumulative prospect theory and evolutionary game theory to study the driver's route choice behavior is effective. This analytic method provides an academic support and suggestion for the traffic guidance system, and may optimize the travel efficiency to a certain extent. PMID:25610455

  17. A Study of Driver's Route Choice Behavior Based on Evolutionary Game Theory

    PubMed Central

    Jiang, Xiaowei; Ji, Yanjie; Deng, Wei

    2014-01-01

    This paper proposes a route choice analytic method that embeds cumulative prospect theory in evolutionary game theory to analyze how the drivers adjust their route choice behaviors under the influence of the traffic information. A simulated network with two alternative routes and one variable message sign is built to illustrate the analytic method. We assume that the drivers in the transportation system are bounded rational, and the traffic information they receive is incomplete. An evolutionary game model is constructed to describe the evolutionary process of the drivers' route choice decision-making behaviors. Here we conclude that the traffic information plays an important role in the route choice behavior. The driver's route decision-making process develops towards different evolutionary stable states in accordance with different transportation situations. The analysis results also demonstrate that employing cumulative prospect theory and evolutionary game theory to study the driver's route choice behavior is effective. This analytic method provides an academic support and suggestion for the traffic guidance system, and may optimize the travel efficiency to a certain extent. PMID:25610455

  18. Regenerative life support systems - why do we need them?

    NASA Technical Reports Server (NTRS)

    Barta, D. J.; Henninger, D. L.

    1994-01-01

    Human exploration of the solar system will include missions lasting years at a time. Such missions mandate extensive regeneration of life support consumables with efficient utilization of local planetary resources. As missions durations extend beyond one or two years, regenerable human life support systems which supply food and recycle air, water, and wastes become feasible; resupply of large volumes and masses of food, water, and atmospheric gases become unrealistic. Additionally, reduced dependency on resupply or self sufficiency can be an added benefit to human crews in hostile environments far from the security of Earth. Comparisons of resupply and regeneration will be discussed along with possible scenarios for developing and implementing human life support systems on the Moon and Mars.

  19. RTEMS CENTRE- Support and Maintenance CENTRE to RTEMS Operating System

    NASA Astrophysics Data System (ADS)

    Silva, H.; Constantino, A.; Coutunho, M.; Freitas, D.; Faustino, S.; Mota, M.; Colaço, P.; Zulianello, M.

    2008-08-01

    RTEMS stands for Real-Time Operating System for Multiprocessor Systems. It is a full featured Real Time Operating System that supports a variety of open APIs and interface standards. It provides a high performance environment for embedded applications, including a fixed-priority preemptive/non-preemptive scheduler, a comprehensive set of multitasking operations and a large range of supported architectures. Support and maintenance CENTRE to RTEMS operating system (RTEMS CENTRE) is a joint initiative of ESA-Portugal Task force, aiming to build a strong technical competence in the space flight (on- board) software, to offer support, maintenance and improvements to RTEMS. This paper provides a high level description of the current and future activities of the RTEMS CENTRE. It presents a brief description of the RTEMS operating system, a description of the tools developed and distributed to the community [1] and the improvements to be made to the operating system, including facilitation for the qualification of RTEMS (4.8.0) [2] for the space missions.

  20. Total operational support test systems for weapon system electronics

    Microsoft Academic Search

    T. Lingenfelter; H. Beardsley

    1997-01-01

    Test equipment and other products that support test have continuously evolved along with the rest of the electronics technology. That is, for the same or better performance, modern test equipment packaging is much smaller and lower cost. In addition, test equipment controls and data interface directly with a computer data bus and\\/or standard computer I\\/O. Modern test equipment, PC computers,

  1. Driving Support Control of Electric Vehicle Adapting to Environment with a Haptic Accelerator Pedal

    NASA Astrophysics Data System (ADS)

    Igari, Yoshihide; Murakami, Toshiyuki

    With the increase in the number of drivers, traffic accidents have increased in number. The process of driving includes acknowledgment, judgment, and operation. Among these, acknowledgment is the most important because mistakes in acknowledgment accounts for 70% of the human factors causing accidents. This paper proposes the cooperation between a haptic pedal system and the driver, which gives the driver information about the road condition. It is confirmed that the proposed method helps in accurate acquisition of road condition information and transmission of this information to drivers; then, the driver's response is analyzed to check whether the information transmission is efficient and the support provided to the driver is adequate. Simulation and experiments were carried out to verify the validity of the proposed approach.

  2. Approach to Health Supporting System Using Traditional Chinese Medicine

    NASA Astrophysics Data System (ADS)

    Watsuji, Tadashi; Shinohara, Shoji; Arita, Seizaburo

    The primary prevention of disease related to the lifestyle is an essential theme in medical research. Preventing before it arises is the important concept in traditional Chinese medicine (TCM). Since TCM, which emphasizes individual physical condition in medical treatment, has recently attracted considerable attention globally, objective diagnostic methods in TCM have been investigated in this work. Firstly, the fuzzy theory was applied to develop a tongue diagnosis supporting system based on the tongue diagnosis in TCM. Secondly, the usefulness of TCM health questionnaire was examined to identify individual physical condition. Our results suggest that the TCM health questionnaire is useful in the construction of a health supporting system based on TCM.

  3. Shuttle remote manipulator system safety and rescue support capabilities

    NASA Technical Reports Server (NTRS)

    Brown, J. W.; Whitehead, G. D.

    1977-01-01

    The Remote Manipulator System (RMS) incorporates a manipulator arm with a payload-handling end effector, an arm positioning mechanism and a control system. The RMS is designed to capture and deploy free-flying payloads up to 4.6 m in diameter and 18.3 m long, weighing 14,515 kg. This paper describes the RMS with attention given to the arm, the supporting subsystems, and safety design features (displays and controls, the mechanical subsystem and operations). Man-in-the-loop simulations for the assurance of RMS and crew safety are described and the use of the RMS for EVA rescue support is considered in detail.

  4. Information security requirements in patient-centred healthcare support systems.

    PubMed

    Alsalamah, Shada; Gray, W Alex; Hilton, Jeremy; Alsalamah, Hessah

    2013-01-01

    Enabling Patient-Centred (PC) care in modern healthcare requires the flow of medical information with the patient between different healthcare providers as they follow the patient's treatment plan. However, PC care threatens the stability of the balance of information security in the support systems since legacy systems fall short of attaining a security balance when sharing their information due to compromises made between its availability, integrity, and confidentiality. Results show that the main reason for this is that information security implementation in discrete legacy systems focused mainly on information confidentiality and integrity leaving availability a challenge in collaboration. Through an empirical study using domain analysis, observations, and interviews, this paper identifies a need for six information security requirements in legacy systems to cope with this situation in order to attain the security balance in systems supporting PC care implementation in modern healthcare. PMID:23920670

  5. Program Support Communications Network (PSCN) facsimile system directory

    NASA Technical Reports Server (NTRS)

    1992-01-01

    This directory provides a system description, a station listing, and operating procedures for the Program Support Communications Network (PSCN) NASA Facsimile System. The NASA Facsimile System is a convenient and efficient means of spanning the distance, time, and cost of transmitting documents from one person to another. In the spectrum of communication techniques, facsimile bridges the gap between mail and data transmission. Facsimile can transmit in a matter of minutes or seconds what would take a day or more by mail delivery. The NASA Facsimile System is composed of several makes and models of facsimile machines. The system also supports the 3M FaxXchange network controllers located at Marshall Space Flight Center (MSFC).

  6. Architectural support for system software on large-scale culsters

    SciTech Connect

    Davis, Kei,; Frachtenberg, E. (Eitan); Petrini, F. (Fabrizio); Sancho, J. C. (Jose Carlos); Fernandez, Juan

    2004-01-01

    Scalable management of distributed resources is one of the major challenges in deployment of large-scale clusters. Management includes transparent fault tolerance, efficient allocation of resources, and support for all the needs of parallel computing: parallel I/O, deterministic behavior; and responsiveness. Meeting these requirements with commodity hardware and operating systems is difficult because they were not designed to support global management of a large-scale system. In this paper we propose a small set of hardware mechanisms in the cluster interconnect to facilitate the implementation of a simple yet powerful global operating system. This system, inspired by concepts from the BSP and SIMD computational models, allows commodity clusters to grow to thousands of nodes while still retaining the usability and responsiveness of the single-node workstation. Our results on a software prototype show that it is possible to implement efficient and scalable system software using the proposed set of mechanisms.

  7. A closed life-support system for space colonies

    NASA Technical Reports Server (NTRS)

    Johnson, R. D.; Jebens, H. J.; Sweet, H. C.

    1977-01-01

    In 1975, a system design study was performed to examine a completely self-contained system for a permanent colony of 10,000 inhabitants in space. Fundamental to this design was the life support system. Since resupply from earth is prohibitive in transportation costs, it was decided to use a closed system with the initial supply of oxygen coming from processing of lunar ores, and the supply of carbon, nitrogen and hydrogen from earth. The problem of life support was treated starting with the nutritional and metabolic requirements for the human population, creating a food and water chain sufficient to supply these demands, adding the additional requirements for the animal and plant sources in the food chain, feeding back useful waste products, supplying water as required from different sources, and closing the loop by processing organic wastes into CO2. This concept places the burden of the system upon plants for O2 generation and waste processing the CO2 generation.

  8. Graduated Driver Licensing

    MedlinePLUS

    ... in your state, please visit Insurance Institute for Highway Safety: Graduated Driver Licensing or your state’s Department ... Division of Unintentional Injury Prevention (DUIP) 4770 Buford Highway, NE Mailstop: F-63 Atlanta, GA 30341 E- ...

  9. Driver Improvement Training and Evaluation.

    ERIC Educational Resources Information Center

    Whittenburg, John A.; And Others

    The last phase of the NHTSA-U.S. Coast Guard Driver Improvement Training and Evaluation Project is described. Begun in July 1970, the project had two basic objectives. The first was to determine whether or not driver training programs do, in fact, significantly reduce driver errors and accidents and improve overall driver efficiency. The second…

  10. Kin-Driver: a database of driver mutations in protein kinases

    PubMed Central

    Simonetti, Franco L.; Tornador, Cristian; Nabau-Moretó, Nuria; Molina-Vila, Miguel A.; Marino-Buslje, Cristina

    2014-01-01

    Somatic mutations in protein kinases (PKs) are frequent driver events in many human tumors, while germ-line mutations are associated with hereditary diseases. Here we present Kin-driver, the first database that compiles driver mutations in PKs with experimental evidence demonstrating their functional role. Kin-driver is a manual expert-curated database that pays special attention to activating mutations (AMs) and can serve as a validation set to develop new generation tools focused on the prediction of gain-of-function driver mutations. It also offers an easy and intuitive environment to facilitate the visualization and analysis of mutations in PKs. Because all mutations are mapped onto a multiple sequence alignment, analogue positions between kinases can be identified and tentative new mutations can be proposed for studying by transferring annotation. Finally, our database can also be of use to clinical and translational laboratories, helping them to identify uncommon AMs that can correlate with response to new antitumor drugs. The website was developed using PHP and JavaScript, which are supported by all major browsers; the database was built using MySQL server. Kin-driver is available at: http://kin-driver.leloir.org.ar/ PMID:25414382

  11. System-Agnostic Clinical Decision Support Services: Benefits and Challenges for Scalable Decision Support

    PubMed Central

    Kawamoto, Kensaku; Del Fiol, Guilherme; Orton, Charles; Lobach, David F

    2010-01-01

    System-agnostic clinical decision support (CDS) services provide patient evaluation capabilities that are independent of specific CDS systems and system implementation contexts. While such system-agnostic CDS services hold great potential for facilitating the widespread implementation of CDS systems, little has been described regarding the benefits and challenges of their use. In this manuscript, the authors address this need by describing potential benefits and challenges of using a system-agnostic CDS service. This analysis is based on the authors’ formal assessments of, and practical experiences with, various approaches to developing, implementing, and maintaining CDS capabilities. In particular, the analysis draws on the authors’ experience developing and leveraging a system-agnostic CDS Web service known as SEBASTIAN. A primary potential benefit of using a system-agnostic CDS service is the relative ease and flexibility with which the service can be leveraged to implement CDS capabilities across applications and care settings. Other important potential benefits include facilitation of centralized knowledge management and knowledge sharing; the potential to support multiple underlying knowledge representations and knowledge resources through a common service interface; improved simplicity and componentization; easier testing and validation; and the enabling of distributed CDS system development. Conversely, important potential challenges include the increased effort required to develop knowledge resources capable of being used in many contexts and the critical need to standardize the service interface. Despite these challenges, our experiences to date indicate that the benefits of using a system-agnostic CDS service generally outweigh the challenges of using this approach to implementing and maintaining CDS systems. PMID:21603281

  12. 45 CFR 307.15 - Approval of advance planning documents for computerized support enforcement systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ...documents for computerized support enforcement systems. 307.15 Section 307.15 Public...SERVICES COMPUTERIZED SUPPORT ENFORCEMENT SYSTEMS § 307.15 Approval of advance planning...documents for computerized support enforcement systems. (a) Approval of an APD....

  13. 45 CFR 307.15 - Approval of advance planning documents for computerized support enforcement systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ...documents for computerized support enforcement systems. 307.15 Section 307.15 Public...SERVICES COMPUTERIZED SUPPORT ENFORCEMENT SYSTEMS § 307.15 Approval of advance planning...documents for computerized support enforcement systems. (a) Approval of an APD....

  14. 45 CFR 307.15 - Approval of advance planning documents for computerized support enforcement systems.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ...documents for computerized support enforcement systems. 307.15 Section 307.15 Public...SERVICES COMPUTERIZED SUPPORT ENFORCEMENT SYSTEMS § 307.15 Approval of advance planning...documents for computerized support enforcement systems. (a) Approval of an APD....

  15. 45 CFR 307.15 - Approval of advance planning documents for computerized support enforcement systems.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ...documents for computerized support enforcement systems. 307.15 Section 307.15 Public...SERVICES COMPUTERIZED SUPPORT ENFORCEMENT SYSTEMS § 307.15 Approval of advance planning...documents for computerized support enforcement systems. (a) Approval of an APD....

  16. SAMHSA's support of behavioral health systems serving service members, veterans, and their families

    E-print Network

    Mather, Patrick T.

    SAMHSA's support of behavioral health systems serving service members, veterans, and their families Page 1 SAMHSA's support of behavioral health systems serving service members, veterans Aligata, SAMHSA's support of behavioral health systems serving service members, veterans

  17. Carbon System Measurements and Potential Climatic Drivers at a Site of Rapidly Declining Ocean pH

    PubMed Central

    Wootton, J. Timothy; Pfister, Catherine A.

    2012-01-01

    We explored changes in ocean pH in coastal Washington state, USA, by extending a decadal-scale pH data series, by reporting independent measures of dissolved inorganic carbon (DIC), spectrophotometric pH, and total alkalinity (TA), by exploring pH patterns over larger spatial scales, and by probing for long-term trends in environmental variables reflecting potentially important drivers of pH. We found that pH continued to decline in this area at a rapid rate, that pH exhibited high natural variability within years, that our measurements of pH corresponded well to spectrophotometric pH measures and expected pH calculated from DIC/TA, and that TA estimates based on salinity predicted well actual alkalinity. Multiple datasets reflecting upwelling, including water temperature, nutrient levels, phytoplankton abundance, the NOAA upwelling index, and data on local wind patterns showed no consistent trends over the period of our study. Multiple datasets reflecting precipitation change and freshwater runoff, including precipitation records, local and regional river discharge, salinity, nitrate and sulfate in rainwater, and dissolved organic carbon (DOC) in rivers also showed no consistent trends over time. Dissolved oxygen did not decline over time, indicating that long-term changes did not result from shifts in contributions of respiration to pH levels. These tests of multiple potential drivers of the observed rapid rate of pH decline indicate a primary role for inorganic carbon and suggest that geochemical models of coastal ocean carbon fluxes need increased investigation. PMID:23285290

  18. Commercial Driver Medical Examinations

    PubMed Central

    Moffitt, Gary; Hanowski, Richard J.; Kales, Stefanos N.; Porter, Richard J.; Hegmann, Kurt T.

    2015-01-01

    Objective: The objective of this study was to assess relationships between body mass index (BMI) and comorbid conditions within a large sample of truck drivers. Methods: Commercial driver medical examination data from 88,246 commercial drivers between 2005 and 2012 were analyzed for associations between BMI, medical disorders, and driver certification. Results: Most drivers were obese (53.3%, BMI >30.0 kg/m2) and morbidly obese (26.6%, BMI >35.0 kg/m2), higher than prior reports. Obese drivers were less likely to be certified for 2 years and more likely to report heart disease, hypertension, diabetes mellitus, nervous disorders, sleep disorders, and chronic low back pain (all P < 0.0001). There are relationships between multiple potentially disqualifying conditions and increasing obesity (P < 0.0001). Morbid obesity prevalence increased 8.9% and prevalence of three or more multiple conditions increased fourfold between 2005 and 2012. Conclusions: Obesity is related to multiple medical factors as well as increasing numbers of conditions that limit driving certification. PMID:25710607

  19. Driver's view and vehicle surround estimation using omnidirectional video stream

    Microsoft Academic Search

    Kohsia S. Huang; Mohan M. Trivedi; Tarak Gandhi

    2003-01-01

    Our research is focused on the development of novel machine vision based telematic systems, which provide non-intrusive probing of the state of the driver and driving conditions. In this paper we present a system which allows simultaneous capture of the driver's head pose, driving view, and surroundings of the vehicle. The integrated machine vision system utilizes a video stream of

  20. Johnson Space Center's regenerative life support systems test bed

    NASA Technical Reports Server (NTRS)

    Henninger, Donald L.; Tri, Terry O.; Barta, Daniel J.; Stahl, Randal S.

    1991-01-01

    The Regenerative Life Support System (RLSS) Test Bed at NASA's Johnson Space Center is an atmospherically closed, controlled environment facility for the evaluation of regenerative life support systems using higher plants in conjunction with physicochemical life support systems. When completed, the facility will be comprised of two large scale plant growth chambers, each with approximately 10 m(exp 2) growing area. One of the two chambers, the Variable Pressure Growth Chamber (VPGC), will be capable of operating at lower atmospheric pressures to evaluate a range of environments that may be used in Lunar or Martian habitats; the other chamber, the Ambient Pressure Growth Chamber (APGC) will operate at ambient atmospheric pressure. The root zone in each chamber will be configurable for hydroponic or solid state media systems. Research will focus on: (1) in situ resource utilization for CELSS systems, in which simulated lunar soils will be used in selected crop growth studies; (2) integration of biological and physicochemical air and water revitalization systems; (3) effect of atmospheric pressure on system performance; and (4) monitoring and control strategies.