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1

TRAFFIC SIGN DETECTION FOR DRIVER SUPPORT SYSTEMS  

Microsoft Academic Search

This paper deals with object recognition in outdoor environments. In this type of environments, lighting conditions can not be controlled and predicted, objects can be partially occluded, and their position and orientation are not known a priori. The chosen type of objects is traffic and road signs, due to their usefulness for Driver Support Systems and Intelligent Autonomous Vehicles. A

M. A. Salichs

2

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

Microsoft Academic Search

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

Rita Kovordányi

3

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

NASA Astrophysics Data System (ADS)

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.

Itoh, Makoto

4

An evaluation of a lane support system for bus rapid transit on narrow shoulders and the relation to bus driver mental workload.  

PubMed

The use of dedicated bus shoulders is a key method for implementing bus rapid transit (BRT) in areas that do not have the space for additional infrastructure. However, the narrow width of the bus shoulder and the need to anticipate traffic hazards in the adjacent lane can both be significant stressors for bus drivers. Bus driver mental workload and stress in response to these conditions should be a significant concern both for operational safety and driver health. This pilot study evaluated the potential stressors of traffic density and shoulder width in the context of an express BRT service in a large US metropolitan area. In addition, the study considered the potential role of a prototype lane support system (LSS) to support vehicle control within the narrow shoulder boundaries. Ten experienced bus drivers drove an actual route with an instrumented bus equipped with and without LSS. Self-reported effort was recorded along with performance measures of speed and position control relevant to mobility and safety objectives. Bus drivers did note stressors in the BRT environment and the prototype LSS. However, the use of the shoulder during high-density traffic conditions did improve mobility. Moreover, the LSS did enhance safety on the shoulder when there was high-density traffic in the adjacent lane. However, there was no evidence that the LSS reduced bus driver workload while operating in the narrow shoulder. Future research should consider the impact of BRT operations and support systems on bus driver mental workload and stress, and support the deployment of such devices for bus operations on shoulders during high traffic volumes. PMID:16801231

Ward, Nicholas J; Shankwitz, Craig; Gorgestani, Alec; Donath, Max; De Waard, Dick; Boer, Erwin R

2006-07-15

5

Driver Support Functions under Resource-Limited Situations  

NASA Astrophysics Data System (ADS)

This paper reports results of an experiment with a driving simulator in order to answer the following question: What type of support should be given to an automobile driver when it is determined, via some monitoring method, that the driver's situation awareness may not be appropriate to a given traffic condition? This paper compares (a) warning type support in which an auditory warning is given to the driver to enhance situation awareness and (b) action type support in which an autonomous safety control is executed as a soft protection for avoiding an accident. Although the both types of driver support are effective, the former sometimes fail to assure safety, which suggests a limitation of the human locus of control assumption, while efficacy of the latter may be degraded by an incorrect human reasoning that can happen under uncertainty. This paper discusses viewpoints needed in the design of systems for supporting drivers in resource-limited situations in which information or time available for a driver is limited in a given traffic condition.

Inagaki, Toshiyuki; Itoh, Makoto; Nagai, Yoshitomo

6

The IRST Driver's Assistance System  

Microsoft Academic Search

The IRST Driver's Assistance System is presentedin its current stage of development. Aim of the systemis to assist the driver of a commercial vehiclemoving along fairly structured roads, such as highwaysor motorways. In input, the system receivesimages recorded from a camera set aboard a vehicle;as output, it provides warnings and alarms relatedto the occurrence of selected dangerous events. Theanalysis of

M. Rossi; M. Aste; R. Cattoni B

1996-01-01

7

Proton driver power supply system  

SciTech Connect

This paper describes magnet power supply system for a proposed Proton Driver at Fermilab. The magnet power supply system consists of resonant dipole/quadrupole power supply system, quadrupole tracking, dipole correction (horizontal and vertical) and sextupole power supply systems. This paper also describes preliminary design of the power distribution system supplying 13.8 kV power to all proton Driver electrical systems.

C. Jach and D. Wolff

2002-06-03

8

EPICS: Allen Bradley driver and device support  

SciTech Connect

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.

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

1996-02-01

9

ARTICULATING COOPERATIVES SYSTEMS AND DRIVER BEHAVIOUR THEORIES  

Microsoft Academic Search

There has been increased research interest in Co-operative Vehicle Infrastructure Systems (CVIS) from the eld of Intelligent Transport Systems (ITS). However most of the research have focused on the engineering aspects and overlooked their relevance to the drivers' behaviour. This paper argues that the priority for cooperative systems is the need to improve drivers decision making and reduce drivers' crash

Andry Rakotonirainy; Sebastien Demmel; Dominique Gruyer

10

Technology drivers for flight telerobotic system software  

NASA Technical Reports Server (NTRS)

Viewgraphs on technology drivers for flight telerobotic system software are included. Topics covered include: flight software lines of code; flight computer architecture; system safety; safety critical parameters; system safety - software functions.

Labaugh, Robert

1993-01-01

11

A Map Based Driver Warning System  

Microsoft Academic Search

The horizontal PReVENT subproject MAPS&ADAS develops a map based Driver Warning System, consisting of an ADAS map, the Speed Limit Warning and the Hot Spot Warning Application. This application warns the driver in case he is approaching a certain location in the street network in a manner which has a potentially high risk of an accident in the next seconds.

Karsten Heinig; Christoph Hecht; Michel Mittaz

12

Communications Interface Driver (CID) System User's Manual.  

National Technical Information Service (NTIS)

This user's manual for the Communications Interface Driver (CID) systems is used to describe the operating procedures of the CID. The CID system is a test tool intended to supply or receive a capacity level of communications messages to and from the air t...

T. Bratton C. Dudas M. Schoenthal J. Davis A. Leone

1989-01-01

13

An evaluation of a lane support system for bus rapid transit on narrow shoulders and the relation to bus driver mental workload  

Microsoft Academic Search

The use of dedicated bus shoulders is a key method for implementing bus rapid transit (BRT) in areas that do not have the space for additional infrastructure. However, the narrow width of the bus shoulder and the need to anticipate traffic hazards in the adjacent lane can both be significant stressors for bus drivers. Bus driver mental workload and stress

Nicholas J. Ward; Craig Shankwitz; Alec Gorgestani; Max Donath; Dick de Waard; Erwin R. Boer

2006-01-01

14

Advanced Driver Assistance Systems - Past, present and future  

Microsoft Academic Search

Every year, automobile manufactures spend millions in funding development of cutting edge technologies to keep drivers safe and accident free while operating their vehicles. These technologies are known in the industry as Advanced Driver Assistance Systems and each one is controlled by complex real-time embedded systems. This paper will present the state of the art for Advanced Driver Assistance Systems

Adnan Shaout; Dominic Colella; S. Awad

2011-01-01

15

Precise eye location in driver fatigue state surveillance system  

Microsoft Academic Search

Whether a driver is fatigued or not can be reflected by his eyes during the course of driving, so it is practical to use the information about the driver's eyes to monitor his fatigue state. Among these, eye location is the key problem. Based on the existing eye location algorithms, specifically for the driver fatigue state surveillance system, this paper

Huabiao Qin; Yongpin Gao; Honglin Gan

2007-01-01

16

Active gated imaging in driver assistance system  

NASA Astrophysics Data System (ADS)

In this paper, we shall present the active gated imaging system (AGIS) in relation to the automotive field. AGIS is based on a fast-gated camera and pulsed illuminator, synchronized in the time domain to record images of a certain range of interest. A dedicated gated CMOS imager sensor and near infra-red (NIR) pulsed laser illuminator, is presented in this paper to provide active gated technology. In recent years, we have developed these key components and learned the system parameters, which are most beneficial to nighttime (in all weather conditions) driving in terms of field of view, illumination profile, resolution, and processing power. We shall present our approach of a camera-based advanced driver assistance systems (ADAS) named BrightEye™, which makes use of the AGIS technology in the automotive field.

Grauer, Yoav

2014-04-01

17

Eye tracking based driver fatigue monitoring and warning system  

Microsoft Academic Search

The main idea behind this project is to develop a non- intrusive system which can detect fatigue of the driver and issue a timely warning. Since a large number of road accidents occur due to the driver drowsiness. Hence this system will be helpful in preventing many accidents, and consequently save money and reduce personal suffering. This system will monitor

Hardeep Singh; J. S. Bhatia; Jasbir Kaur

2011-01-01

18

Feasibility of a driver performance data acquisition system  

SciTech Connect

The National Highway Traffic Safety Administration (NHTSA) envisions many future situations in which the effectiveness and consequences of new intelligent vehicle-highway systems technologies will need to be studied in actual production vehicles. Such studies will enable evaluations in vehicles which are familiar to drivers. These studies would be future enhanced by the availability of an instrumentation package that can be easily installed in these vehicles to enable specific vehicle configurations of interest to be evaluated, thereby increasing the variety of vehicle options that are available for study. Ideally, an approach is needed that would allow data collection from a variety of vehicle models and types, and would address the issue of driver familiarity. Such an approach is embodied in the concept of a driver performance data acquisition system that could be installed in a wide range of vehicles within a relatively short period of time. As a universally adaptable system, it would provide researchers with the ability to manually input data as well as directly record information on driver, vehicle, roadway, and environmental parameters. Furthermore, it would enable the measurement of driver performance in the driver`s own vehicle, thereby ensuring vehicle familiarity. In addition, it would be possible to measure driver performance in relation to any vehicle design characteristic at relatively little expense and effort, and would make it easy to update existing models of driver/vehicle behavior to reflect performance characteristics in vehicles of current manufacture.

Carter, R.J.; Spelt, P.F. [Oak Ridge National Lab., TN (United States); Goodman, M.J. [National Highway Traffic Safety Administration, Washington, DC (United States). Office of Crash Avoidance Research

1994-06-01

19

Success Drivers in an Electronic Performance Support Project  

Microsoft Academic Search

Electronic Performance Support Systems (EPSS) were born in the United States in 1991 to address the problems that raising software complexity was creating to employees. It is now a well-established software niche in the US, with many case histories and success stories and a very active research community working on it. In Europe there have been only a few implementations

Giovanni Giacometti CERONI

2001-01-01

20

Parental Supervision of Teenage Drivers in a Graduated Licensing System  

Microsoft Academic Search

Objectives. Most states now have lengthy learner periods for young, beginning drivers as part of their graduated driver licensing (GDL) systems. Although parents play a vital role during the learner stage of GDL by supervising driving practice, virtually nothing is known about the nature and quality of parental supervision. The objectives of this study were to investigate parents' supervisory behavior

Arthur H. Goodwin; Martha W. Waller; Robert D. Foss; Lewis H. Margolis

2006-01-01

21

Panel discussion on introduction of intelligent vehicles into society: technical, mental and legal aspects. Future driver assistance systems-product liability and driver's responsibility  

Microsoft Academic Search

Future driver assistance systems may control the driving of a car to an extent including traffic situations in which the driver is “switched off” and the total control of the car is taken over by the driver assistance system. Drivers may have perspectives and expectations of the safety and functionality of driver assistance systems, which may affect their sense to

J. Feldges

1996-01-01

22

An Optimization Framework for Driver Feedback Systems  

SciTech Connect

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.

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

2013-01-01

23

Driver performance data acquisition system for ergonomics research  

SciTech Connect

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.

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

24

Health system drivers of hospital medicine in Canada  

PubMed Central

Abstract Objective To identify the underlying systemic drivers of the development and ongoing expansion of hospitalist programs in Canada. Data sources MEDLINE and Google Scholar were searched using combinations of the terms hospitalist, hospital medicine, and Canada. Study selection All publications that addressed the study question, including review articles, original research, editorials, commentaries, and letters or news articles, were included in the review. Synthesis Constant comparative methodology was used to analyze and code the articles and to synthesize the identified codes into broader themes. Three broad categories were identified: physician-related drivers, health system–related drivers, and patient-related drivers. Within each category, we identified a number of drivers. Conclusion Many drivers have been cited in the literature as reasons behind the emergence and growth of the hospitalist model in the Canadian health care system. While their interplay makes simple cause-and-effect conclusions difficult, these drivers demonstrate that hospitalist programs in Canada have developed in response to a complex set of provider, system, and patient factors.

Yousefi, Vandad; Maslowski, Rafal

2013-01-01

25

Human System Drivers for Exploration Missions  

NASA Technical Reports Server (NTRS)

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

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

2010-01-01

26

Hybrid Intelligence for Driver Assistance  

Microsoft Academic Search

We report on our on-going effort to build an adaptive driver support system, Driver AdvocateTM, merging various AI techniques, in particular, agents, ontology, production systems and machine learning technologies. The goal of DA is to help drivers have a safer, more enjoyable, and more productive driving experience, by managing their attention and workload. This paper describes the overall architecture of

Chung Hee Hwang; Noel Massey; Bradford W. Miller; Kari Torkkola

2003-01-01

27

Wireless and wearable EEG system for evaluating driver vigilance.  

PubMed

Brain activity associated with attention sustained on the task of safe driving has received considerable attention recently in many neurophysiological studies. Those investigations have also accurately estimated shifts in drivers' levels of arousal, fatigue, and vigilance, as evidenced by variations in their task performance, by evaluating electroencephalographic (EEG) changes. However, monitoring the neurophysiological activities of automobile drivers poses a major measurement challenge when using a laboratory-oriented biosensor technology. This work presents a novel dry EEG sensor based mobile wireless EEG system (referred to herein as Mindo) to monitor in real time a driver's vigilance status in order to link the fluctuation of driving performance with changes in brain activities. The proposed Mindo system incorporates the use of a wireless and wearable EEG device to record EEG signals from hairy regions of the driver conveniently. Additionally, the proposed system can process EEG recordings and translate them into the vigilance level. The study compares the system performance between different regression models. Moreover, the proposed system is implemented using JAVA programming language as a mobile application for online analysis. A case study involving 15 study participants assigned a 90 min sustained-attention driving task in an immersive virtual driving environment demonstrates the reliability of the proposed system. Consistent with previous studies, power spectral analysis results confirm that the EEG activities correlate well with the variations in vigilance. Furthermore, the proposed system demonstrated the feasibility of predicting the driver's vigilance in real time. PMID:24860041

Lin, Chin-Teng; Chuang, Chun-Hsiang; Huang, Chih-Sheng; Tsai, Shu-Fang; Lu, Shao-Wei; Chen, Yen-Hsuan; Ko, Li-Wei

2014-04-01

28

Driver Recognition System Using FNN and Statistical Methods  

Microsoft Academic Search

\\u000a Advancements in biometrics-based authentication have led to its increasing prominence and are being incorporated into everyday\\u000a tasks. Existing vehicle security systems rely currently on electronic alarm or smart card systems. A biometrie driver recognition\\u000a system utilizing driving behavior signals can be incorporated into existing vehicle security system to form a multimodal identification\\u000a system and offer a higher degree of protection.

Abdul WahabI; Tan Chin Keong; Hiiseyin Abut; Kazuya Takeda

29

Analysis of an induction linac driver system for inertial fusion  

SciTech Connect

A linear induction accelerator that produces a beam of energetic (5 to 20 GeV) heavy (130 to 210 amu) ions is a prime candidate as a driver for inertial fusion. Continuing developments in sources for ions with charge state greater than unity allow a potentially large reduction in the driver cost and an increase in the driver efficiency. The use of high undepressed tunes (sigma/sub 0/ approx. = 85/sup 0/) and low depressed tunes (sigma approx. = 8.5/sup 0/) also contributes to a potentially large reduction in the driver cost. The efficiency and cost of the induction linac system are discussed as a function of output energy and pulse repetition frequency for several ion masses and charge states. The cost optimization code LIACEP, including accelerating module alternatives, transport modules, and scaling laws, is presented. Items with large cost-leverage are identified as a guide to future research activities and development of technology that can yield substantial reductions in the accelerator system cost and improvement in the accelerator system efficiency. Finally, a cost-effective strategy using heavy ion induction linacs in a development scenario for inertial fusion is presented. 34 refs., 6 figs., 7 tabs.

Hovingh, J.; Brady, V.O.; Faltens, A.; Keefe, D.; Lee, E.P.

1987-07-01

30

A model for ontology-based scene description for context-aware driver assistance systems  

Microsoft Academic Search

Driving assistance systems (DAS) offer support in potentially dangerous situations, especially for unexperienced drivers. Co-operative systems improve their performance by sharing information with each other. One key-enabler for describing and exchanging context between intelligent vehicles, which use it for reasoning about their environment, is a common context-model. In this paper, we briefly discuss the influence of the driving context on

Simone Fuchs; Stefan Rass; Bernhard Lamprecht; Kyandoghere Kyamakya

2008-01-01

31

Technology and teen drivers.  

PubMed

The rapid evolution of computing, communication, and sensor technology is likely to affect young drivers more than others. The distraction potential of infotainment technology stresses the same vulnerabilities that already lead young drivers to crash more frequently than other drivers. Cell phones, text messaging, MP3 players, and other nomadic devices all present a threat because young drivers may lack the spare attentional capacity for vehicle control and the ability to anticipate and manage hazards. Moreover, young drivers are likely to be the first and most aggressive users of new technology. Fortunately, emerging technology can also support safe driving. Electronic stability control, collision avoidance systems, intelligent speed adaptation, and vehicle tracking systems can all help mitigate the threats to young drivers. However, technology alone is unlikely to make young drivers safer. One promising approach to tailoring technology to teen drivers is to extend proven methods for enhancing young driver safety. The success of graduated drivers license programs (GDL) and the impressive safety benefit of supervised driving suggest ways of tailoring technology to the needs of young drivers. To anticipate the effects of technology on teen driving it may be useful to draw an analogy between the effects of passengers and the effects of technology. Technology can act as a teen passenger and undermine safety or it can act as an adult passenger and enhance safety. Impact on industry: Rapidly developing technology may have particularly large effects on teen drivers. To maximize the positive effects and minimize the negative effects will require a broad range of industries to work together. Ideally, vehicle manufacturers would work with infotainment providers, insurance companies, and policy makers to craft new technologies so that they accommodate the needs of young drivers. Without such collaboration young drivers will face even greater challenges to their safety as new technologies emerge. PMID:17478191

Lee, John D

2007-01-01

32

The Supporting a Teen's Effective Entry to the Roadway (STEER) Program: Feasibility and Preliminary Support for a Psychosocial Intervention for Teenage Drivers with ADHD  

ERIC Educational Resources Information Center

Teenage drivers with attention-deficit/hyperactivity disorder (ADHD) are at considerable risk for negative driving outcomes, including traffic citations, accidents, and injuries. Presently, no efficacious psychosocial interventions exist for teenage drivers with ADHD. The Supporting a Teen's Effective Entry to the Roadway (STEER) program is a…

Fabiano, Gregory A.; Hulme, Kevin; Linke, Stuart; Nelson-Tuttle, Chris; Pariseau, Meaghan; Gangloff, Brian; Lewis, Kemper; Pelham, William E.; Waschbusch, Daniel A.; Waxmonsky, James G.; Gormley, Matthew; Gera, Shradha; Buck, Melina

2011-01-01

33

Sensitivities of Projected 1980 Photovoltaic System Costs to Major System Cost Drivers.  

National Technical Information Service (NTIS)

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)...

L. W. Zimmerman J. L. Smith

1984-01-01

34

Effects of road surface appearance and low friction warning systems on driver behaviour and confidence in the warning system.  

PubMed

Warning systems for slippery road conditions are a potential newcomer among driver support systems. A total of 75 participants drove in a high-fidelity driving simulator on roads with both visible and invisible ice, to investigate to which extent drivers rely on a low friction warning system. Three experimental groups with different versions of a low friction warning system and a control group without warning system were compared. All drivers ranked the systems according to trust. A system displaying recommended speed received the best ratings. Driving speed was analysed for three particular segments of the route. Generally, lowest speeds were achieved with the recommended speed system. The participants drove more slowly on a slippery segment that looked icy than on the segments that looked dry when they did not receive a low friction warning. When they received a warning for low friction they also lowered their speed for the segment looking like asphalt. The results provide guidelines for how to present low friction warnings to drivers. The design has substantial effects on the resulting behaviour and therefore it can have a high impact on traffic safety. So far, not much research on low friction warning systems has been reported. PMID:18937091

Kircher, Katja; Thorslund, Birgitta

2009-02-01

35

Characterizing fluvial systems at basin scale by fuzzy signatures of hydromorphological drivers in data scarce environments  

NASA Astrophysics Data System (ADS)

Despite the relevance of river hydromorphology (HYMO) for integrated water resource management, consistent geomorphic information at the scale of whole river basin is still scarce, especially in emerging economies. In this paper, we propose a new, scalable and globally applicable framework to analyze and classify fluvial systems in data-scarce environments. The framework is based on a data-driven analysis of a multivariate data set of 6 key hydro-morphologic drivers derived using freely available remote-sensing information and several in situ hydrological time series. Core of the framework is a fuzzy classifier that assigns a characteristic signature of HYMO drivers to individual river reaches. We demonstrate the framework on the Red River Basin, a large, trans-boundary river basin in Vietnam and China, where human-induced morphological change, concretely endangering local livelihoods, is contrasted by very limited HYMO information. The derived HYMO information covers spatial scales from the entire basin to individual reaches. It conveys relevant information on subbasin hydro-morphologic characteristic as well as on local geomorphologic forms and processes. The fuzzy classifier successfully distinguishes abrupt from continuous downstream change and spatially dissects the river system in segments with homogeneous hydro-morphologic forcings. Successful numerical modelling of morphologic forms and process rates based on the HYMO signatures indicates that the multivariate, basin-scale classification captures relevant morphological drivers, outperforms an analysis based on local drivers only, and can support river management from diverse, morphology related perspectives over a wide range of scales.

Schmitt, R.; Bizzi, S.; Castelletti, A.

2014-06-01

36

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

PubMed

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

Risto, Malte; Martens, Marieke H

2014-07-01

37

Decentralised systems - definition and drivers in the current context.  

PubMed

This paper explores the current context for decentralised approaches in the provision of urban water services. It examines the recent history of decentralised systems' implementation in Australia and identifies its drivers. The drivers included addressing capacity constraints of centralised systems, mitigating the environmental impact of urban development, and increasing the resilience of urban water systems to episodic droughts and the projected impacts of climate change. The concepts of integrated urban water management and water sensitive urban design were prevalent in many of the innovative approaches used for the provision of decentralised urban water services. However, there remains a degree of confusion among water professionals in the terminology adopted for on-site and decentralised systems. Based on a literature review, consultation with water industry professionals and examination of decentralised urban developments in Australia, this paper has developed a generalised definition of decentralised systems for adoption across the water sector. The definition encompasses the various development scales in which decentralised systems are implemented, and reflects the new functions and characteristics inherent to those systems. PMID:23656954

Sharma, Ashok K; Tjandraatmadja, Grace; Cook, Stephen; Gardner, Ted

2013-01-01

38

Alarm effectiveness in driver-centred collision-warning systems.  

PubMed

The potential use of systems that seek to communicate a warning of impending collision directly to the driver is examined. Technological advances in collision-warning systems include reliable, low-cost radars, sensors with low noise levels, and the development of accurate detection algorithms for particular crash types, e.g. rear-end collisions. However, fundamental practical constraints make perfect sensor detection difficult to achieve. Imperfect detection conflates the false alarm rate and experience with other technologies confirms driver aversion to false warnings. Although sensitive alarm systems with high detection rates and low false alarm rates have been developed, the posterior probability of a collision given an alarm can be quite low because of the low base rate of collision events. As a result, only a small proportion of alarms will represent true collision scenarios. These and other factors can conspire to reduce alarm effectiveness in collision-warning systems. The problem is illustrated analytically and potential solutions are advanced. PMID:9118938

Parasuraman, R; Hancock, P A; Olofinboba, O

1997-03-01

39

Supporting Drivers in Keeping Safe Speed and Safe Distance: The SASPENCE Subproject Within the European Framework Programme 6 Integrating Project PReVENT  

Microsoft Academic Search

This paper describes a novel driver-support system that helps to maintain the correct speed and headway (distance) with respect to lane curvature and other vehicles ahead. The system has been developed as part of the Integrating Project PReVENT under the European Framework Programme 6, which is named SAfe SPEed and safe distaNCE (SASPENCE). The application uses a detailed description of

Enrico Bertolazzi; Francesco Biral; Mauro Da Lio; Andrea Saroldi; Fabio Tango

2010-01-01

40

Vessel structural support system  

DOEpatents

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.

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

41

Permanent circulatory support systems at the Pennsylvania State University  

Microsoft Academic Search

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

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

1990-01-01

42

Cryogenic support system  

DOEpatents

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.

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

1988-11-01

43

Cryogenic support system  

DOEpatents

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.

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

1988-01-01

44

Eliminating fixed costs: Part I--Health system drivers.  

PubMed

Americans want less-bureaucratic, higher-quality, and above all, less-costly health care. Reducing the number of nurses, pharmacists, and others who care for patients is not a viable solution; fiscal constraints, which reduce fixed costs, are superior to other options in containing health costs. To this end, it is imperative that the U.S. reimbursement system be simplified. Posing as a major encumbrance are some deeply vested, highly placed self-interests that obstruct implementation of a partly private, partly public reimbursement system that would better serve patients, providers, and insurers. In part I of this two-part article, the author describes some of the drivers that are pushing health care costs to higher levels. PMID:12229063

Weil, Thomas P

2002-08-01

45

An Ultrasonic Actuating Driver for a Central Supporting Bending Mode Using a Motional Current Technique  

NASA Astrophysics Data System (ADS)

This paper proposes the design of a driver to deal with a thin-disc central supporting structure ultrasonic actuator based on the vibration modes and the equivalent circuit. In order to gain the electromechanical match at resonant frequency, a spectrum analyzer should measure admittance for driving piezoelectric ceramics. The virtual analyzer also investigated the characteristics of a MODEL-E equivalent circuit based upon the admittance-frequency response. The inherent capacitance from an ultrasonic actuator became the partial component in the design of a resonant circuit. IsSpice software is introduced to simulate as well as the experimental results has demonstrated a high agreement related to the conceptual design and practical implementation for the driving circuit.

Wen, Fuhliang; Wen, Chao-Chun; Lai, Ming-Hung; Hsu, Ichien

46

Systems analysis for modular vs. multi-beam HIF drivers  

NASA Astrophysics Data System (ADS)

Previous modeling for HIF drivers concentrated on designs in which 100 or more beams are grouped in an array and accelerated through a common set of induction cores. The total beam energy required by the target is achieved by the combination of final ion energy, current per beam and number of beams. Economic scaling favors a large number of small (˜1 cm diameter) beams. An alternative architecture has now been investigated, which we refer to as a modular driver. In this case, the driver is subdivided into many ( >10) independent accelerators with one or many beams each. A key objective of the modular driver approach is to be able to demonstrate all aspects of the driver (source-to-target) by building a single, lower-cost module compared to a full-scale, multi-beam driver. We consider and compare several design options for the modular driver including single-beam designs with solenoid instead of quadrupole magnets in order to transport the required current per module in a single beam, solenoid/quad combinations, and multi-beam, all-quad designs. The drivers are designed to meet the requirements of the hybrid target, which can accommodate a larger spot size than the distributed radiator target that was used for the Robust Point Design. We compare the multi-beam and modular driver configuration for a variety of assumptions and identify key technology advances needed for the modular design.

Meier, W. R.; Logan, B. G.

2005-05-01

47

Hospital admissions among male drivers in Denmark  

PubMed Central

OBJECTIVES—To facilitate decisions about interventions and to establish baseline values for future evaluation of preventive efforts, the aim of the present study was to elucidate the disease pattern among male professional drivers in Denmark. The study differentiated between drivers of goods vehicles and drivers of passenger transport.?METHODS—Cohorts of all 20-59 year old Danish male professional drivers in the years 1981, 1986, 1991, and 1994 were formed, to calculate age standardised hospital admission ratios (SHRs) and time trends (1981-97) for many diagnostic aggregations.?RESULTS—SHRs for diseases in practically all systems and organs of the body were higher among professional drivers than they were in the male working population at large. Also drivers of passenger transport, compared with drivers of goods vehicles, had significantly high SHRs due to infectious and parasitic diseases, diseases of the circulatory system, and diseases of the respiratory system, and significantly lower rates of injury. For both driver groups, the SHRs for acute myocardial infarction increased with time whereas the SHR for acute gastritis decreased, and for drivers of passenger transport an increasing SHR for chronic obstructive pulmonary disease, was found over time.?CONCLUSION—Drivers of passenger transport and drivers of goods vehicles differ in their disease patterns. The results support the hypothesis that preventive efforts are needed in both groups, but underline that different strategies are required for different categories of drivers.???Keywords: professional drivers; hospital admissions; surveillance system

Hannerz, H; Tuchsen, F

2001-01-01

48

Electronic performance support systems  

Microsoft Academic Search

Electronic Performance Support Systems (EPSS) are computer-based, multimedia systems that are a key to enhancing mission effectiveness in the 90's. Multimedia systems provide for the integration of visual-intensive data in the form of digital video as well as vectorized, colorized graphics with the standard text and line-graphics normally found in maintenance data. EPSS-based maintenance systems allow captured expert knowledge to

R. M. Bond

1993-01-01

49

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

Code of Federal Regulations, 2010 CFR

...for the driver from the steering control system. 571.203 Section 571...for the driver from the steering control system. S1. Purpose and scope... S3. Definitions. Steering control system means the basic steering...

2010-10-01

50

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

Code of Federal Regulations, 2010 CFR

...for the driver from the steering control system. 571.203 Section 571...for the driver from the steering control system. S1. Purpose and scope... S3. Definitions. Steering control system means the basic steering...

2009-10-01

51

Driver performance while text messaging using handheld and in-vehicle systems.  

PubMed

This study presents an evaluation of driver performance while text messaging via handheld mobile phones and an in-vehicle texting system. Participants sent and received text messages while driving with an experimenter on a closed-road course, using their personal mobile phones and the vehicle's system. The test vehicle was an instrumented 2010 Mercury Mariner equipped with an OEM in-vehicle system that supports text messaging and voice control of mobile devices via Bluetooth, which was modified to allow text message sending during driving. Twenty participants were tested, 11 younger (19-34) and 9 older (39-51). All participants were regular users of the in-vehicle system, although none had experience with the texting functions. Results indicated that handheld text message sending and receiving resulted in higher mental demand, more frequent and longer glances away from the roadway, and degraded steering measures compared to baseline. Using the in-vehicle system to send messages showed less performance degradation, but still had more task-related interior glance time and higher mental demand than baseline; using the system's text-to-speech functionality for incoming messages showed no differences from baseline. These findings suggest that using handheld phones to send and receive text messages may interfere with drivers' visual and steering behaviors; the in-vehicle system showed improvement, but performance was not at baseline levels during message sending. PMID:21376886

Owens, Justin M; McLaughlin, Shane B; Sudweeks, Jeremy

2011-05-01

52

Biological Life Support Systems  

NASA Technical Reports Server (NTRS)

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.

1997-01-01

53

Group Support Systems (GSS)  

NASA Technical Reports Server (NTRS)

Groupware is a term describing an emerging computer software technology enhancing the ability of people to work together as a group, (a software driven 'group support system'). This project originated at the beginning of 1992 and reports were issued describing the activity through May 1995. These reports stressed the need for process as well as technology. That is, while the technology represented a computer assisted method for groups to work together, the Group Support System (GSS) technology als required an understanding of the facilitation process electronic meetings demand. Even people trained in traditional facilitation techniques did not necessarily aimlessly adopt groupware techniques. The latest phase of this activity attempted to (1) improve the facilitation process by developing training support for a portable groupware computer system, and (2) to explore settings and uses for the portable groupware system using different software, such as Lotus Notes.

Hamel, Gary P.; Wijesinghe, R.

1996-01-01

54

Steam generator support system  

DOEpatents

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.

Moldenhauer, James E. (Simi Valley, CA)

1987-01-01

55

Steam generator support system  

DOEpatents

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 is disclosed. 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. 4 figs.

Moldenhauer, J.E.

1987-08-25

56

Text Reading and Text Input Assessment in Support of the NHTSA Visual-Manual Driver Distraction Guidelines.  

National Technical Information Service (NTIS)

The aim of this project was to provide data supporting the development of NHTSAs proposed Visual-Manual Driver Distraction Guidelines text entry and text reading specification. The purpose of the study was to examine the two test protocols recommended in ...

E. Miller J. Jenness J. D. Lee L. N. Boyle M. Ghazizadeh Y. Peng Y. Wu

2013-01-01

57

On the highway measures of driver glance behavior with an example automobile navigation system.  

PubMed

An over-the-road study of visual-manual destination entry using an example original equipment GPS-based navigation system was accomplished in traffic on urban streets and motorways. The evaluation used typical drivers, and a vehicle instrumented to record driver eye glances and fixations, driver control inputs, and lateral lane position. The primary task was to drive in a safe manner, in traffic, while maintaining speed and lateral lane position. As a secondary task, the drivers entered successive destinations while driving, using a touch screen, and at their own pace. They were told there was no need to enter the destination quickly. Results are shown for driver glance behavior, lane keeping performance, and subjective ratings. Overall, the drivers were able to accomplish the destination entry tasks with acceptably short glance durations, acceptable total task times, and with satisfactory subjective ratings for ease of entry. PMID:15145284

Chiang, Dean P; Brooks, Aaron M; Weir, David H

2004-05-01

58

SAS Attitude Support System  

NASA Technical Reports Server (NTRS)

A unique ground control system was designed and implemented to support and meet the stringent mission requirements of the SAS-1. The important features of the system are described with emphasis on the software used to control the orientation of the spacecraft. A summary of the system's operation during the SAS-1 mission is given along with a discussion of the performance of the software subsystems relative to the mission requirements.

Snyder, J. L.; Meyers, G. F.

1972-01-01

59

Graduated Driver Licensing  

MedlinePLUS

... ve Learned Take Action: Tips for Businesses/Groups (Implementation Guide) Event Planning Guide Media Outreach ... Driver Licensing Graduated driver licensing (GDL) systems help new drivers gain skills under low-risk ...

60

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

Microsoft Academic Search

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

Auranuch Lorsakul; Jackrit Suthakorn

61

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

Microsoft Academic Search

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,

Mahdi Rezaei; Mohammadreza Sarshar; M. Mehdi Sanaatiyan

2010-01-01

62

System level design of a LED lighting driver based on switching power supply  

Microsoft Academic Search

LED has been applied in many aspects in daily life because of its advantages, and this trend will go on. Therefore, the research and design of the LED lighting driver becomes popular. In this article, system level design of a LED lighting driver based on switching power is described. The chip is designed with hysteretic control mode, and the peripheral

Zheng Jiuyun; Han Zhigang; Luo Shengqian

2009-01-01

63

Course Scheduling Support System  

Microsoft Academic Search

The Course Scheduling Support System is designed to facilitate manual generation of the faculty course schedule. It aids in assigning faculty to courses a nd assigning each course section to a time block. It captures historic and current scheduling information in an organized manner making information needed to create new schedules more readily available. The interaction between user and database

Roy Levow; Jawad Khan; Sam Hsu

2006-01-01

64

Peer Group Support System.  

ERIC Educational Resources Information Center

A program designed to help student teachers improve their skills through interaction with their peers is described. The Peer Group Support System (P.G.S.S.) is a self-evaluation process. Participants in the P.G.S.S. are elmentary student teachers, secondary student teachers, selected students enrolled in general methods courses and the faculty of…

Daryl V. Gilley; Smith, Sonja

65

A driver-to-infrastructure interaction system for motorcycles based on smartphone  

Microsoft Academic Search

This paper concerns the definition and implementation of an add-on interaction system for motorcycles. The system is a vehicle-to-driver communication system and a driver-to-infrastructure communication system, based on a smartphone core and a wireless Bluetooth medium. The system is devoted to increase the safety level of a motorcycle and it is constituted by a vehicle with a CAN bus, a

Vincenzo Manzoni; Andrea Corti; Cristiano Spelta; Sergio M. Savaresi

2010-01-01

66

Self-calibration of an On-Board Stereovision System for Driver Assistance Systems  

Microsoft Academic Search

Vision-based driver assistance systems need to establish a correspondence between the position of the objects on the road, and its projection in the image. Although intrinsic parameters can be calibrated before installation, calibration of extrinsic parameters can only be done with the cameras mounted in the vehicle. In this paper the self-calibration system of the IWI (intelligent vehicle based on

Juan M. Collado; Cristina Hilario; Arturo de la Escalera; Jose M. Armingol

2006-01-01

67

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

PubMed

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

Itoh, Makoto; Horikome, Tatsuya; Inagaki, Toshiyuki

2013-09-01

68

Simulation of Driver Behaviour as a Function of Driver Error and Driver Daydream Factor  

Microsoft Academic Search

A driver-vehicle interaction model consisting of a closed loop system, developed recently, has been used to simulate the behaviour of drivers having different values of driver error and driver day dream factors. Concept of Risk Time, Driver Error and Driver Daydream Factors is presented and used to evaluate the vehicle-driver model. A process cycle of a driver-vehicle model is set

Kailash P. Thakur

69

The influence of distraction and driving context on driver response to imperfect collision warning systems.  

PubMed

Automotive collision warning systems (CWS) can enhance hazard identification and management. However, false alarms (FAs), which occur as a random activation of the system not corresponding to a threat and not interpretable by the driver, and unnecessary alarms (UAs), which occur in situations judged hazardous by the algorithm but not by the driver, may limit CWS effectiveness. A driving simulator was used to investigate the influence of CWS (accurate, UA, FA, none) and distraction on driver performance during non-critical and critical events. FAs and UAs differentially influenced trust and compliance. FAs diminished trust and compliance, whereas the context associated with UAs fostered trust and compliance during subsequent events. This study suggests current warning descriptions based on signal detection theory need to be expanded to represent how different types of alarms affect drivers. PMID:17558669

Lees, M N; Lee, J D

2007-08-01

70

A new design and implementation of an infrared device driver in embedded Linux systems  

NASA Astrophysics Data System (ADS)

Wireless infrared communication systems are widely-used for the remote controls in portable terminals, particularly for systems requiring low cost, light weight, moderate data rates. They have already proven their electiveness for short-range temporary communications and in high data rate longer range point-to-point systems. This paper proposes the issue of design and implementation of an infrared device driver in a personal portable intelligent digital infrared communications system. After analyzing the various constraints, we use the embedded system based on Samsung S3C2440A 32-bit processor and Linux operating system to design the driver program. The program abandons its traditional Serial interface control mode, uses the generic GPIO to achieve infrared receiver device driver, and intends a user-defined communication protocol which is much more simple and convenient instead of traditional infrared communication protocol to design the character device drivers for the infrared receiver. The communication protocol uses interrupt counter to determine to receive the value and the first code.In this paper, the interrupt handling and an I/O package to reuse Linux device drivers in embedded system is introduced. Via this package, the whole Linux device driver source tree can be reused without any modifications. The driver program can set up and initialize the infrared device, transfer data between the device and the software, configure the device, monitor and trace the status of the device, reset the device, and shut down the device as requested. At last infrared test procedure was prepared and some testing and evaluations were made in a mobile infrared intelligent cicerone system, and the test result shows that the design is simple, practical, with advantages such as easy transplantation, strong reliability and convenience.

Jia, Li-Li; Cui, Hua; Wang, Ru-Li

2009-07-01

71

Smart Roadside System for Driver Assistance and Safety Warnings: Framework and Applications  

PubMed Central

The use of newly emerging sensor technologies in traditional roadway systems can provide real-time traffic services to drivers through Telematics and Intelligent Transport Systems (ITSs). This paper introduces a smart roadside system that utilizes various sensors for driver assistance and traffic safety warnings. This paper shows two road application models for a smart roadside system and sensors: a red-light violation warning system for signalized intersections, and a speed advisory system for highways. Evaluation results for the two services are then shown using a micro-simulation method. In the given real-time applications for drivers, the framework and certain algorithms produce a very efficient solution with respect to the roadway type features and sensor type use.

Jang, Jeong Ah; Kim, Hyun Suk; Cho, Han Byeog

2011-01-01

72

Smart roadside system for driver assistance and safety warnings: framework and applications.  

PubMed

The use of newly emerging sensor technologies in traditional roadway systems can provide real-time traffic services to drivers through Telematics and Intelligent Transport Systems (ITSs). This paper introduces a smart roadside system that utilizes various sensors for driver assistance and traffic safety warnings. This paper shows two road application models for a smart roadside system and sensors: a red-light violation warning system for signalized intersections, and a speed advisory system for highways. Evaluation results for the two services are then shown using a micro-simulation method. In the given real-time applications for drivers, the framework and certain algorithms produce a very efficient solution with respect to the roadway type features and sensor type use. PMID:22164025

Jang, Jeong Ah; Kim, Hyun Suk; Cho, Han Byeog

2011-01-01

73

Drivers in current and future municipal solid waste management systems: cases in Yokohama and Boston.  

PubMed

Despite some progress, municipal solid waste (MSW) still poses pressure on cities and remains one of the major challenges in environmental management. There is no single solution to the problem since the drivers behind MSW systems may vary significantly from city to city. In this context, the development of a common strategy to attain a sustainable management has been increasingly difficult. This paper presents an issue-driven analytical framework to evaluate the past, present and future MSW management strategy for the cities of Yokohama and Boston considering four driver categories while evaluating if the relevance of these drivers has changed over time. These categories represent: (i) legal drivers (e.g. laws and regulations); (ii) technology development and institutional drivers (e.g. available technologies); (iii) regional and international drivers (e.g. solid waste flow as recyclable resources); and (iv) socio-economic drivers (e.g. population trends and public awareness). The analysis indicated that solid waste management capacity for both cases was under stress due to different reasons. In the case of Boston, the moratorium for disposal facilities played an important role while increasing population was a key driver for the city of Yokohama. The future management scenario suggests that various waste-to-energy alternatives and strong solid waste reduction policies will play a key role for Boston. In Yokohama, a shift on waste composition and generation triggered by a demographic change may open the path for new technologies while also considering the international demand of solid waste as a recyclable resource. PMID:19942650

Contreras, Francisco; Ishii, Satoshi; Aramaki, Toshiya; Hanaki, Keisuke; Connors, Stephen

2010-01-01

74

Active Vibration Control System for the Driver's Seat for Off-Road Vehicles  

Microsoft Academic Search

The paper deals with an electrohydraulic active vibration control system for the driver's seat for off-road vehicles. After a general description of the problem a serial electrohydraulic active vibration control system, working on the compensation principle, is mathematically analyzed. Results of computer simulation, based on an analogue model, indicate, that the system could effectively absorb vibrations in a chosen frequency

G. J. STEIN; I. BALLO

1991-01-01

75

Exhaust support system  

SciTech Connect

An exhaust support system is described for a midship engine rear wheel drive-type vehicle having a transversely mounted engine, which consists of: a first cylindrical exhaust device having an inlet opening at a first longitudinal end thereof and an outlet opening at a second longitudinal end thereof and a horizontal longitudinal centerline running therethrough; a first exhaust pipe having an inlet opening and an outlet opening, the inlet opening communicating with the engine and the outlet opening communicating with the first cylindrical exhaust device; a second cylindrical exhaust device having an inlet opening at a first longitudinal end thereof and an outlet opening at a second longitudinal end thereof, the second cylindrical exhaust device having a horizontal longitudinal centerline running therethrough and being provided in a substantially parallel relationship with the centerline of the first exhaust device, and the first cylindrical exhaust device is located alongside of the second exhaust device such that the longitudinal centerlines of the first and second exhaust devices are located in substantially adjacent horizontal planes; a second exhaust pipe communicating the outlet opening of the first exhaust device with the inlet opening of the second exhaust device; and a bracket means for securing the first exhaust pipe to the second exhaust device, the bracket means being made of at least one sheet of metal, the at least one sheet of metal being secured to an extending perpendicularly between an outer peripheral flange of the first exhaust pipe and an outer peripheral portion of the second exhaust device, the at least one sheet of metal having a substantially flat surface which is substantially perpendicular to the horizontal longitudinal centerlines of the first and the second exhaust devices.

Teshima, H.

1986-06-24

76

Modelling Driver Behaviour on Basis of Emotions and Feelings: Intelligent Transport Systems and Behavioural Adaptations  

Microsoft Academic Search

\\u000a Intelligent transport system (ITS) is a generic concept, which covers a wide range of systems. In this context the concept\\u000a is applied on automotive systems and comprises systems generally defined as (advanced) driver assistance systems (ADAS\\/DAS),\\u000a in-vehicle information systems (IVIS) and roadside telematics (RT). The present text focuses on anti-locking brake systems\\u000a (ABS), which is used as an illustrative example

Truls Vaa

77

Biological life-support systems  

NASA Technical Reports Server (NTRS)

The establishment of human living environments by biologic methods, utilizing the appropriate functions of autotrophic and heterotrophic organisms is examined. Natural biologic systems discussed in terms of modeling biologic life support systems (BLSS), the structure of biologic life support systems, and the development of individual functional links in biologic life support systems are among the factors considered. Experimental modeling of BLSS in order to determine functional characteristics, mechanisms by which stability is maintained, and principles underlying control and regulation is also discussed.

Shepelev, Y. Y.

1975-01-01

78

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

PubMed

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

Lee, Boon-Giin; Chung, Wan-Young

2012-01-01

79

Technological Support for Logistics Transportation Systems  

NASA Astrophysics Data System (ADS)

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.

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

80

Extended mission life support systems  

NASA Technical Reports Server (NTRS)

Extended manned space missions which include interplanetary missions require regenerative life support systems. Manned mission life support considerations are placed in perspective and previous manned space life support system technology, activities and accomplishments in current supporting research and technology (SR&T) programs are reviewed. The life support subsystem/system technologies required for an enhanced duration orbiter (EDO) and a space operations center (SOC), regenerative life support functions and technology required for manned interplanetary flight vehicles, and future development requirements are outlined. The Space Shuttle Orbiters (space transportation system) is space cabin atmosphere is maintained at Earth ambient pressure of 14.7 psia (20% O2 and 80% N2). The early Shuttle flights will be seven-day flights, and the life support system flight hardware will still utilize expendables.

Quattrone, P. D.

1985-01-01

81

An MPSoC architecture for the Multiple Target Tracking application in driver assistant system  

Microsoft Academic Search

This article discusses the design of an application specific MPSoC architecture dedicated to Multiple Target Tracking (MTT). This application has its utility in driver assistant systems, more precisely in collision avoidance and warning systems. An Automotive-radar is used as the front end sensor in our application. The article examines the tradeoffs that must be taken into consideration in the realization

Jehangir Khan; Smaïl Niar; Atika Rivenq; Yassin Elhillali; Jean-luc Dekeyser

2008-01-01

82

Integrating distributed generation into electric power systems: A review of drivers, challenges and opportunities  

Microsoft Academic Search

It is now more than a decade since distributed generation (DG) began to excite major interest amongst electric power system planners and operators, energy policy makers and regulators as well as developers. This paper presents an overview of the key issues concerning the integration of distributed generation into electric power systems that are of most interest today. The main drivers

J. A. Peças Lopes; N. Hatziargyriou; J. Mutale; P. Djapic; N. Jenkins

2007-01-01

83

Parental perceptions of the learner driver log book system in two Australian States.  

PubMed

Objective: Though many jurisdictions internationally now require learner drivers to complete a specified number of hours of supervised driving practice before being able to drive unaccompanied, very few require learner drivers to complete a log book to record this practice and then present it to the licensing authority. Learner drivers in most Australian jurisdictions must complete a log book that records their practice, thereby confirming to the licensing authority that they have met the mandated hours of practice requirement. These log books facilitate the management and enforcement of minimum supervised hours of driving requirements. Method: Parents of learner drivers in 2 Australian states, Queensland and New South Wales, completed an online survey assessing a range of factors, including their perceptions of the accuracy of their child's learner log book and the effectiveness of the log book system. Results: The study indicates that the large majority of parents believe that their child's learner log book is accurate. However, they generally report that the log book system is only moderately effective as a system to measure the number of hours of supervised practice a learner driver has completed. Conclusions: The results of this study suggest the presence of a paradox, with many parents possibly believing that others are not as diligent in the use of log books as they are or that the system is too open to misuse. Given that many parents report that their child's log book is accurate, this study has important implications for the development and ongoing monitoring of hours of practice requirements in graduated driver licensing systems. PMID:24571187

Bates, Lyndel; Watson, Barry; King, Mark Johann

2014-11-17

84

Designing Electronic Performance Support Systems.  

ERIC Educational Resources Information Center

Outlines the basic nature of performance support and describes a generic model that can be used to facilitate electronic performance support system (EPSS) development. Performance measures are discussed; performance support guidelines are summarized; and a case study of the use of an EPSS is presented. (LRW)

Barker, Philip; Banerji, Ashok

1995-01-01

85

Reactor vessel support system. [LMFBR  

DOEpatents

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.

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

1980-05-09

86

Cost drivers and resource allocation in military health care systems.  

PubMed

This study illustrates the feasibility of incorporating technical efficiency considerations in the funding of military hospitals and identifies the primary drivers for hospital costs. Secondary data collected for 24 U.S.-based Army hospitals and medical centers for the years 2001 to 2003 are the basis for this analysis. Technical efficiency was measured by using data envelopment analysis; subsequently, efficiency estimates were included in logarithmic-linear cost models that specified cost as a function of volume, complexity, efficiency, time, and facility type. These logarithmic-linear models were compared against stochastic frontier analysis models. A parsimonious, three-variable, logarithmic-linear model composed of volume, complexity, and efficiency variables exhibited a strong linear relationship with observed costs (R(2) = 0.98). This model also proved reliable in forecasting (R(2) = 0.96). Based on our analysis, as much as $120 million might be reallocated to improve the United States-based Army hospital performance evaluated in this study. PMID:17436766

Fulton, Larry; Lasdon, Leon S; McDaniel, Reuben R

2007-03-01

87

Extended mission life support systems  

NASA Technical Reports Server (NTRS)

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.

Quattrone, P. D.

1984-01-01

88

Child safety driver assistant system and its acceptance.  

PubMed

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 accidents is often lacking. For this reason, additional preventive measures are required to reduce the number of crushings. Electronic tools that deliver information about the presence of children in the blind spots surrounding vehicles and their attached machines can be very effective. Such an electronic device must cover all security gaps around operating agricultural vehicles and their attached machines, ensure collision-free stopping in risk situations, and be inexpensive. Wireless sensor network and electrical near-field electronic components are suited to the development of low-cost wireless detection devices. For reliable detection in a versatile environment, it is necessary for children to continuously wear a slumbering transponder. This means that children and adults must have a high acceptance of the device, which can be improved by easy usability, design, and service quality. The developed demonstrator achieved detection distances of up to 40 m in the far field and 2.5 m in the near field. Recognized far-field sensor detection weaknesses, determined by user-friendliness tests, are false alarms in farmyards and around buildings. The detection distance and reliability of the near-field sensor varied with the design of the attached machines' metallic components. PMID:19437262

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

2009-01-01

89

Comparison of tanker drivers' occupational exposures before and after the installation of a vapour recovery system.  

PubMed

The purpose of this study was to compare tanker drivers' occupational exposure level before and after the installation of vapour recovery facilities at 14 service stations. Road tanker drivers are exposed when handling volatile petrol liquid in bulk in the distribution chain. The drivers' exposure was studied during the unloading operation as the bulk petrol flowed into underground storage tanks, displacing vapours in the tank space and causing emission to the environment and the drivers' work area. The exposures were measured again when the dual point Stage I vapour recovery systems were installed for recycling vapours. Short-term measurements were carried out in the drivers' breathing zones by drawing polluted air through a charcoal tube during unloading. The samples were analysed in the laboratory by gas chromatography for C3-C11 aliphatic hydrocarbons, tert-butyl methyl ether (MTBE), tert-amyl methyl ether (MTAE), benzene, toluene and xylene. The road tanker loads delivered consisted of oxygenated and reformulated petrol (E95 and E98 brands), which contained on average 13% oxygenates. Before the installation of the vapour recovery system, the geometric mean (GM) concentration of aliphatic hydrocarbons was 65 mg m-3 (range 6-645 mg m-3) in the drivers' breathing zones. After the installation at the same service stations, the corresponding exposure level was 8.3 mg m-3 (range < 1-79 mg m-3). The GM of the MTBE concentrations was 8.6 mg m-3 (range 1-67 mg m-3) without vapour recovery and 1.5 mg m-3 (range < 0.1-10 mg m-3) with vapour recovery. The differences between the aliphatic hydrocarbons and the MTBE exposure levels during the unloading of the road tankers without and with vapour recovery were statistically significant (p < 0.05). PMID:11296758

Saarinen, L; Hakkola, M; Kangas, J

2000-12-01

90

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

Microsoft Academic Search

Based on our experience in the DARPA Urban Challenge and on current trends in con- sumer automobiles, we believe that driver assistance systems can be significantly improved by new techniques in control and sensing that have been developed for fully-autonomous driving. In particular, from the control community, real-time Model Predictive Control (MPC) can be used as the next generation of

Humberto Gonzalez; Esten I. Grøtli; Todd R. Templeton; Jan O. Biermeyer; Jonathan SprinkleS; Shankar Sastry

91

Dynamics of livestock production systems, drivers of change and prospects for animal genetic resources  

Microsoft Academic Search

Summary This overview analyses the key drivers of change in the global livestock sector and assesses how they are influencing current trends and future prospects in the world's diverse livestock production systems and market chains; and what are their consequent impacts on the management of animal genetic resources for food and agriculture. The trends are occurring in both developing and

Carlos Sere; Zijpp van der A. J; Gabrielle Persley; Ed Rege

2008-01-01

92

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

Microsoft Academic Search

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

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

1996-01-01

93

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

NASA Technical Reports Server (NTRS)

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.

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

1984-01-01

94

System Support for Online Reconfiguration  

Microsoft Academic Search

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

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

95

Life Support Systems Microbial Challenges  

NASA Technical Reports Server (NTRS)

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.

Roman, Monserrate C.

2009-01-01

96

Torsional Angle Driver (TorAD) System for HyperChem\\/Excel  

Microsoft Academic Search

The torsional angle driver system for HyperChem\\/Excel is a package of several Excel spreadsheets and macro programs to be used with HyperChem to obtain and plot information, such as total energy, for the conformations that result from a 360° rotation about a torsional angle system in a molecule. The TorAD system also includes several HyperChem scripts to facilitate its use.

Ronald Starkey

1999-01-01

97

Smartphone-Based Vehicle-to-Driver\\/Environment Interaction System for Motorcycles  

Microsoft Academic Search

This letter concerns the definition and the implementation of an add-on interaction system for motorcycles. The system consists of a vehicle-to-driver and a vehicle-to-environment communication mechanism, which is based on a smartphone core and on a wireless Bluetooth medium. The system is focused to increase the safety level of a motorcycle and it is constituted by a vehicle with a

Cristiano Spelta; Vincenzo Manzoni; Andrea Corti; Andrea Goggi; Sergio Matteo Savaresi

2010-01-01

98

Driver performance while text messaging using handheld and in-vehicle systems  

Microsoft Academic Search

This study presents an evaluation of driver performance while text messaging via handheld mobile phones and an in-vehicle texting system. Participants sent and received text messages while driving with an experimenter on a closed-road course, using their personal mobile phones and the vehicle's system. The test vehicle was an instrumented 2010 Mercury Mariner equipped with an OEM in-vehicle system that

Justin M. Owens; Shane B. McLaughlin; Jeremy Sudweeks

2011-01-01

99

Strategic quality support system  

US Patent & Trademark Office Database

Healthcare providers are faced with an extremely fast paced environment where patient care is closely coupled with quality and safety standards. To promote a safe and optimal environment for patients and healthcare workers, numerous standards must be met. The number of standards continues to grow as healthcare continues to become more complex. The present invention, and the various embodiments thereof, describes a computer based system and method for strengthening a healthcare provider's quality program through the use of quality assurance, quality improvement and performance improvement modules that help to structure, monitor and manage quality tasks. A pixel mapped calendar provides a compelling graphical representation of the current status of the various quality tasks associated with a specific date or dates to provide a visual representation of the overall health of an organization as it relates to meeting quality and safety standards.

2013-11-05

100

Understanding ridership drivers for bus rapid transit systems in Australia  

Microsoft Academic Search

Bus Rapid Transit (BRT) systems are an increasingly popular public transport option in Australia and internationally. They provide rail-like quality for bus services for a fraction of the cost of fixed rail. Many claims of high and increasing ridership have resulted from BRT system development; however it is unclear exactly which aspects of BRT system design drive this.This paper undertakes

Graham Currie; Alexa Delbosc

2010-01-01

101

Clinical Decision-Support Systems  

Microsoft Academic Search

Clinical decision-support systems (CDSS) apply best-known medical knowledge to patient data for the purpose of generating case-specific decision-support advice. CDSS forms the cornerstone of health informatics research and practice. It is an embedded concept in almost all major clinical information systems and plays an instrumental role in helping health care achieve its ultimate goal: providing high- quality patient care while,

Kai Zheng

102

Acoustic Levitation With One Driver  

NASA Technical Reports Server (NTRS)

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.

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

1985-01-01

103

System Support Studies under Production Support Program.  

National Technical Information Service (NTIS)

Studies were made in support of production programs for Wing VI Minuteman second-stage motors. Summaries follow for the five areas of program effort discussed in this volume of the final report. (1) Statistical analyses were made of various materials and ...

H. E. Childres E. J. Mastrolia

1966-01-01

104

Analyzing Demand Drivers of Enterprise Informatization Based on System Dynamics Method  

Microsoft Academic Search

With the popularization of networks, digitalization and automation, demand for enterprise informatization becomes more urgent.\\u000a There are many factors leading to the demand for EIS. Some of the factors are from enterprise development, while others are\\u000a from policy driven. In this paper, we present a relationship model by using system dynamics method to characterize the cause-result\\u000a (C-R) of demand drivers

Yijun Huang; Weiguo Wang; Jun Wu; Xue Yan; Rong Liu; Lei Dai; Tian Guo; Honglin Song

2007-01-01

105

Automobile Driving Behavior Recognition Using Boosting Sequential Labeling Method for Adaptive Driver Assistance Systems  

Microsoft Academic Search

Recent advances in practical adaptive driving assistance systems and sensing technology for automobiles have led to a detailed\\u000a study of individual human driving behavior. In such a study, we need to deal with a large amount of stored data, which can\\u000a be managed by splitting the analysis according to the driving states described by driver maneuvers and driving environment.\\u000a As

Wathanyoo Khaisongkram; Pongsathorn Raksincharoensak; Masamichi Shimosaka; Taketoshi Mori; Tomomasa Sato; Masao Nagai

2008-01-01

106

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

PubMed Central

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.

Heenan, Caragh B.; Seymour, Roger S.

2011-01-01

107

Modeling of driver steering operation in lateral disturbances based on Driver's Motion Sensation  

Microsoft Academic Search

Disturbances decrease vehicle stability and increase driver's mental and physical workload. Especially, lateral wind increases driver's workload greatly, because driver cannot expect it. Various driver assistance systems by steering assist have been developed to improve vehicle stability in such disturbance. Gap between vehicle motion and driver's motion recognition characteristics, however, often leads to uncomfortable feeling in driver assistance system with

Yoshinori Kurata; Takahiro Wada; Norimasa Kamiji; S. Doi

2009-01-01

108

Reducing Driver Distraction through Software  

Microsoft Academic Search

Advanced Driver Assistance (ADA) systems currently operate within vehicles, offering drivers assistance to either avoid hazardous situations, or information to make travelling easier. However, these devices have the potential to contribute to driver distraction as they require a certain level of driver attention in order to provide a benefit, taking cognitive, visual, auditory, and manual resources away from the main

Chad Brooks; Andry Rakotonirainy; Frederic Maire

109

Cross-sector review of drivers and available 3Rs approaches for acute systemic toxicity testing.  

PubMed

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

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

2010-08-01

110

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

PubMed Central

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.

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

2010-01-01

111

Analyses of driver’s anticipation effect in sensing relative flux in a new lattice model for two-lane traffic system  

NASA Astrophysics Data System (ADS)

In this paper, a new lattice hydrodynamic traffic flow model is proposed by considering the driver’s anticipation effect in sensing relative flux (DAESRF) for two-lane system. The effect of anticipation parameter on the stability of traffic flow is examined through linear stability analysis and shown that the anticipation term can significantly enlarge the stability region on the phase diagram. To describe the phase transition of traffic flow, mKdV equation near the critical point is derived through nonlinear analysis. The theoretical findings have been verified using numerical simulation which confirms that traffic jam can be suppressed efficiently by considering the anticipation effect in the new lattice model for two-lane traffic.

Gupta, Arvind Kumar; Redhu, Poonam

2013-11-01

112

COBVIS-D: A Computer Vision System for Describing the Cephalo-Ocular Behavior of Drivers in a Driving Simulator  

Microsoft Academic Search

This paper describes current research combining computer vision, virtual reality and kinesiology for analyzing the cephalo-ocular\\u000a behavior of drivers in realistic driving contexts. The different components of the system are described and results are provided\\u000a for each one. The ultimate goal of the system is to achieve automatic analysis of drivers’ behavior in order to design training\\u000a programs tailored to

Steven S. Beauchemin; Parisa Darvish Zadeh Varcheie; Langis Gagnon; Denis Laurendeau; Martin Lavallière; Thierry Moszkowicz; Florent Prel; Normand Teasdale

2009-01-01

113

Designing Electronic Performance Support Systems  

Microsoft Academic Search

An electronic performance support system (EPSS) is an interactive computer?based environment that is intended to facilitate and\\/or improve human problem solving capability within some target application domain. EPSS tools can be used by individuals, groups and organizations in order to improve various facets of their operation. The nature of an EPSS facility will therefore depend upon who it is intended

Philip Barker; Ashok Banerji

1995-01-01

114

Equatorial scintillation and systems support  

Microsoft Academic Search

The need to nowcast and forecast scintillation for the support of operational systems has been recently identified by the interagency National Space Weather Program. This issue is addressed in the present paper in the context of nighttime irregularities in the equatorial ionosphere that cause intense amplitude and phase scintillations of satellite signals in the VHF\\/UHF range of frequencies and impact

S. Basu; E. J. Weber; M. Smitham; H. Kuenzler; C. E. Valladares; R. Sheehan; E. MacKenzie; J. A. Secan; P. Ning; W. J. McNeill; D. W. Moonan; M. J. Kendra

1997-01-01

115

Decision Support Systems in Logistics  

NASA Astrophysics Data System (ADS)

Experience shows that intuitive judgment and decision making is not allwas of sufficient quality and is getting worse in the presence of increasing complexity. One of the solutions to such problems is to use decision support systems. This paper focuses on assessment criteria of delivery quality in the transport logistics.

Encheva, Sylvia; Kondratenko, Yuriy; Solesvik, Maryna Z.; Tumin, Sharil

2008-11-01

116

Prevalence of hypertension in bus drivers.  

PubMed

This paper reports the results of a cross-sectional study conducted to evaluate the prevalence of hypertension in 1500 black and white male bus drivers from a large urban transit system in the US. Data for this study were compiled from the files of an occupational health clinic which conducts biennial medical examinations for drivers' license renewal. To test whether prevalence of hypertension was higher among bus drivers than among employed individuals in general, drivers were compared to three groups: individuals from both a national and local health survey and individuals undergoing baseline health examinations prior to employment as bus drivers. After adjustment for age and race, hypertension rates for bus drivers were significantly greater than rates for each of the three comparison groups. These findings support previous results from international studies of bus drivers suggesting that exposure to the occupation of driving a bus may carry increased health risk. This research has expanded into an on-going study which has the goals of clarifying the extent of hypertension in bus drivers and identifying specific behavioural and occupational factors that may be responsible for increased risk of cardiovascular disease. PMID:3497118

Ragland, D R; Winkleby, M A; Schwalbe, J; Holman, B L; Morse, L; Syme, S L; Fisher, J M

1987-06-01

117

The Wave-Driver System of the Off-Disk Coronal Wave of 17 January 2010  

NASA Astrophysics Data System (ADS)

We study the 17 January 2010 flare-CME-wave event by using STEREO/SECCHI-EUVI and -COR1 data. The observational study is combined with an analytic model that simulates the evolution of the coronal wave phenomenon associated with the event. From EUV observations, the wave signature appears to be dome shaped having a component propagating on the solar surface () as well as one off-disk () away from the Sun. The off-disk dome of the wave consists of two enhancements in intensity, which conjointly develop and can be followed up to white-light coronagraph images. Applying an analytic model, we derive that these intensity variations belong to a wave-driver system with a weakly shocked wave, initially driven by expanding loops, which are indicative of the early evolution phase of the accompanying CME. We obtain the shock standoff distance between wave and driver from observations as well as from model results. The shock standoff distance close to the Sun (< 0.3 R ? above the solar surface) is found to rapidly increase with values of ? 0.03 - 0.09 R ?, which gives evidence of an initial lateral (over)expansion of the CME. The kinematical evolution of the on-disk wave could be modeled using input parameters that require a more impulsive driver (duration t=90 s, acceleration a=1.7 km s-2) compared to the off-disk component (duration t=340 s, acceleration a=1.5 km s-2).

Temmer, M.; Vrsnak, B.; Veronig, A. M.

2013-10-01

118

Thermally Activated Driver  

NASA Technical Reports Server (NTRS)

Space-qualified, precise, large-force, thermally activated driver (TAD) developed for use in space on astro-physics experiment to measure abundance of rare actinide-group elements in cosmic rays. Actinide cosmic rays detected using thermally activated driver as heart of event-thermometer (ET) system. Thermal expansion and contraction of silicone oil activates driver. Potential applications in fluid-control systems where precise valve controls are needed.

Kinard, William H.; Murray, Robert C.; Walsh, Robert F.

1987-01-01

119

Teen Driver Safety: Additional Research Could Help States Strengthen Graduated Driver Licensing Systems. Report to the Committee on Transportation and Infrastructure and Its Subcommittee on Highways and Transit, House of Representatives. GAO-10-544  

ERIC Educational Resources Information Center

Teen drivers ages 16 to 20 have the highest fatality rate of any age group in the United States. As a result, states have increasingly adopted laws to limit teen driving exposure, such as Graduated Driver Licensing (GDL) systems, which consist of three stages: a learner's permit allowing driving only under supervision; intermediate licensure…

Fleming, Susan A.

2010-01-01

120

Who's Driving This Bus Anyway? Empowering Drivers.  

ERIC Educational Resources Information Center

In 1977, a school transportation director developed a policy giving school bus drivers authority to discipline unruly student behavior via a system of graduated warnings and suspension of riding privileges. Most parents have been supportive and expect their kids to behave on the bus. In the interest of safety, school administrators should support

Allen, J. D.

1997-01-01

121

Operator Performance Support System (OPSS)  

NASA Technical Reports Server (NTRS)

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.

Conklin, Marlen Z.

1993-01-01

122

Modeling Advance Life Support Systems  

NASA Technical Reports Server (NTRS)

Activities this summer consisted of two projects that involved computer simulation of bioregenerative life support systems for space habitats. Students in the Space Life Science Training Program (SLSTP) used the simulation, space station, to learn about relationships between humans, fish, plants, and microorganisms in a closed environment. One student complete a six week project to modify the simulation by converting the microbes from anaerobic to aerobic, and then balancing the simulation's life support system. A detailed computer simulation of a closed lunar station using bioregenerative life support was attempted, but there was not enough known about system restraints and constants in plant growth, bioreactor design for space habitats and food preparation to develop an integrated model with any confidence. Instead of a completed detailed model with broad assumptions concerning the unknown system parameters, a framework for an integrated model was outlined and work begun on plant and bioreactor simulations. The NASA sponsors and the summer Fell were satisfied with the progress made during the 10 weeks, and we have planned future cooperative work.

Pitts, Marvin; Sager, John; Loader, Coleen; Drysdale, Alan

1996-01-01

123

NHLBI support of systems biology  

PubMed Central

The National Heart, Lung, and Blood Institute (NHLBI) has recognized the importance of the systems biology approach for understanding normal physiology and perturbations associated with heart, lung, blood, and sleep diseases and disorders. In 2006, NHLBI announced the Exploratory Program in Systems Biology program, followed in 2010 by the NHLBI Systems Biology Collaborations program. The goal of these programs is to support collaborative teams of investigators in using experimental and computational strategies to integrate the component parts of biological networks and pathways into computational models that are based firmly on and validated using experimental data. These validated models are then applied to gain insights into the mechanisms of altered system function in disease, to generate novel hypotheses regarding these mechanisms that can be tested experimentally, and to then use the results of experiments to refine the models. This perspective reviews the history of dedicated systems biology programs at NHLBI and reviews some promising directions for future research in this area.

Qasba, Pankaj; Larkin, Jennie

2013-01-01

124

Designing driver assistance systems with crossmodal signals: multisensory integration rules for saccadic reaction times apply.  

PubMed

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

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

2014-01-01

125

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

PubMed Central

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.

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

2014-01-01

126

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

NASA Astrophysics Data System (ADS)

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.

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

2013-04-01

127

Regenerative life support system research  

NASA Technical Reports Server (NTRS)

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.

1988-01-01

128

A Distributed Logistic Support Communication System  

Microsoft Academic Search

Abstract: This paper presents a communication architecture to provide an optimizedsupport for communication within a logistic company. Truckage companiesneed continuous and up-to-date information about their business processes in orderto respond quickly to customers' needs and problems emerging during transportprocesses. A reliable and user-friendly communication system is required, whichimproves the relationship between drivers and dispatchers. The main goals areintegration with legacy

V. Gruhn; M. Hlder; R. Ijioui; F. m Schleif; L. Schpe

2003-01-01

129

Skylab food system laboratory support  

NASA Technical Reports Server (NTRS)

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.

Sanford, D.

1974-01-01

130

Lunar lander ground support system  

NASA Technical Reports Server (NTRS)

This year's project, like the previous Aerospace Group's project, involves a lunar transportation system. The basic time line will be the years 2010-2030 and will be referred to as a second generation system, as lunar bases would be present. The project design completed this year is referred to as the Lunar Lander Ground Support System (LLGSS). The area chosen for analysis encompasses a great number of vehicles and personnel. The design of certain elements of the overall lunar mission are complete projects in themselves. For this reason the project chosen for the Senior Aerospace Design is the design of specific servicing vehicles and additions or modifications to existing vehicles for the area of concern involving servicing and maintenance of the lunar lander while on the surface.

1991-01-01

131

Systems simulations supporting NASA telerobotics  

NASA Technical Reports Server (NTRS)

Two simulation and analysis environments have been developed to support telerobotics research at the Langley Research Center. One is a high-fidelity, nonreal-time, interactive model called ROBSIM, which combines user-generated models of workspace environment, robots, and loads into a working system and simulates the interaction among the system components. Models include user-specified actuator, sensor, and control parameters, as well as kinematic and dynamic characteristics. Kinematic, dynamic, and response analyses can be selected, with system configuration, task trajectories, and arm states displayed using computer graphics. The second environment is a real-time, manned Telerobotic Systems Simulation (TRSS) which uses the facilities of the Intelligent Systems Research Laboratory (ISRL). It utilizes a hierarchical structure of functionally distributed computers communicating over both parallel and high-speed serial data paths to enable studies of advanced telerobotic systems. Multiple processes perform motion planning, operator communications, forward and inverse kinematics, control/sensor fusion, and I/O processing while communicating via common memory. Both ROBSIM and TRSS, including their capability, status, and future plans are discussed. Also described is the architecture of ISRL and recent telerobotic system studies in ISRL.

Harrison, F. W., Jr.; Pennington, J. E.

1987-01-01

132

Tracking systems to support the Common Lunar Lander (CLL)  

NASA Technical Reports Server (NTRS)

A discussion of the tracking system for Artemis (the Common Lunar Lander) is presented. Among the topics presented are the following: major drivers for system definition, results of vendor survey, baseline system properties, program considerations, and mission phases requiring tracking.

Culpepper, William X.

1991-01-01

133

DESIGN OF ACADEMIC PERFORMANCE SUPPORT SYSTEMS  

Microsoft Academic Search

This paper explores the design requirements for creation of Academic Performance Support Systems (APSS) that use information technology to support learning communities. It outlines an incremental approach to the design, planning, and implementation of an electronic performance support system (EPSS) that is intended to learning communities by integrating both learning support applications and administrative applications which support school management and

Robert E. Isaacson; Brian Newberry

134

Space Transportation System (STS): Emergency support  

NASA Technical Reports Server (NTRS)

The DSN (Deep Space Network) mission support requirements for emergency support of the Space Transportation System (STS) are summarized. Coverage would be provided by the DSN during emergencies that would prevent communications between the shuttle and the White Sands TDRSS receiving station. The DSN support requirements are defined through the presentation of tables and narratives describing the spacecraft flight profile; DSN support coverage; frequency assignments; support parameters for telemetry, command and support systems; and tracking support responsibility.

Janoski, T.; Nicholson, L.

1991-01-01

135

Lunar lander ground support system  

NASA Technical Reports Server (NTRS)

The design of the Lunar Lander Ground Support System (LLGSS) is examined. The basic design time line is around 2010 to 2030 and is referred to as a second generation system, as lunar bases and equipment would have been present. Present plans for lunar colonization call for a phased return of personnel and materials to the moons's surface. During settlement of lunar bases, the lunar lander is stationary in a very hostile environment and would have to be in a state of readiness for use in case of an emergency. Cargo and personnel would have to be removed from the lander and transported to a safe environment at the lunar base. An integrated system is required to perform these functions. These needs are addressed which center around the design of a lunar lander servicing system. The servicing system could perform several servicing functions to the lander in addition to cargo servicing. The following were considered: (1) reliquify hydrogen boiloff; (2) supply power; and (3) remove or add heat as necessary. The final design incorporates both original designs and existing vehicles and equipment on the surface of the moon at the time considered. The importance of commonality is foremost in the design of any lunar machinery.

1991-01-01

136

Clinical Decision-Support Systems  

Microsoft Academic Search

\\u000a After reading this chapter, you should know the answers to these questions:\\u000a \\u000a \\u000a \\u000a \\u000a • \\u000a \\u000a \\u000a What are three requirements for an excellent decision-making system?\\u000a \\u000a \\u000a \\u000a • \\u000a \\u000a \\u000a What are three decision-support roles for computers in clinical medicine?\\u000a \\u000a \\u000a \\u000a • \\u000a \\u000a \\u000a How has the use of computers for clinical decision support evolved since the1960s?\\u000a \\u000a \\u000a \\u000a • \\u000a \\u000a \\u000a What is a knowledge-based system?\\u000a \\u000a \\u000a \\u000a • \\u000a \\u000a \\u000a What influences account for the gradual

Mark A. Musen; Yuval Shahar; Edward H. Shortliffe

137

Fusion of occupancy grid mapping and model based object tracking for driver assistance systems using laser and radar sensors  

Microsoft Academic Search

in this paper we present a novel environment perception system based on an occupancy grid mapping and a multi-object tracking. The goal of such a system is to create a harmonic, consistent and complete representation of the vehicle environment as a base for future advanced driver assistance systems. In addition to a mathematical formulation of the problem we present a

Mohamed Essayed Bouzouraa; Ulrich Hofmann

2010-01-01

138

Torsional Angle Driver (TorAD) System for HyperChem/Excel  

NASA Astrophysics Data System (ADS)

The torsional angle driver system for HyperChem/Excel is a package of several Excel spreadsheets and macro programs to be used with HyperChem to obtain and plot information, such as total energy, for the conformations that result from a 360° rotation about a torsional angle system in a molecule. The TorAD system also includes several HyperChem scripts to facilitate its use. TorAD was developed for use in the undergraduate organic chemistry laboratory. The results obtained with TorAD could be obtained manually with HyperChem, but it would take considerable time and would not be instructive to the students. Use of the TorAD system allows students to spend their time on the more important aspect of conformation analysisinterpretation of results. The Excel spreadsheet/macro programs in TorAD include:

· Tor_xl_a and tor_xl obtain and plot the total energy at 5° torsional-angle intervals. The calculation method, the torsional-angle restraint, and the structure to be used at each angle can be set by the user. The advanced version, tor_xl_a, which requires HyperChem 4.5 or later, also allows torsional-angle structures to be saved for later recall as individual structures or, using a HyperChem script, in a movie format. It also provides a rapid scan of the 360° rotation where only single-point calculations, rather than geometry optimizations, are performed. The tor_xl system will perform routine tasks in a manner suitable for most instructional settings. · Tor_Comp performs molecular mechanics optimizations at 5° intervals and obtains and plots four energy parameters (total, torsional, nonbonded, and bond [bend plus stretch] energy) as a function of torsional angle. The calculation method and the restraint can be specified. · TorDipol produces a plot of the total energy and the calculated dipole moment at 5° steps of the torsional angle. The default calculation is the semi-empirical AM1 method, but other methods can be used. The calculation method and the restraint can be specified. · Tor2_180 and Tor2_360 rotate two torsional angles to provide a 3D plot of the resulting total energy surface. Tor2_180 performs a 0 to 180° rotation, in 10° steps, on each of the two torsional angle systems (tor1 and tor2) selected. Tor2_360 will do a -180° to +180° (360° total) rotation of the two torsional angles in 20° steps.
Both tor2_180 and tor2_360 provide an x, y, z plot (x = angle 1, y = angle 2, z = energy) and a topo plot (x = angle 1, y = angle 2, z = topo lines and color coding). The molecular mechanics method and the restraint can be specified. Hardware and Software Requirement Hardware and software requirements for Torsional Angle Driver (TorAD) are shown in Table 1. These programs require a version of HyperChem 4.0 or later that supports DDE. Also required is Microsoft Excel 5.0 or higher. HyperChem and Excel are not included with the issue.
Ordering and Information JCE Software is a publication of the Journal of Chemical Education. There is an order form inserted in this issue that provides prices and other ordering information. If this card is not available or if you need additional information, contact: JCE Software, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706-1396 phone: 608/262-5153 or 800/991-5534 fax: 608/265-8094; email: jcesoft@chem.wisc.edu Information about all of our publications (including abstracts, descriptions, updates) is available from the JCE Software World Wide Web site.

Starkey, Ronald

1999-02-01

139

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

NASA Technical Reports Server (NTRS)

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.

Brush, Harold T.

1986-01-01

140

Driver Education Mandate: A Preliminary Report.  

ERIC Educational Resources Information Center

A review of material on driver education in Illinois was conducted to support the recommendation that the state mandate for driver education be removed. Examination of the historical background and the components of the mandate suggested that there were three major goals for driver education: traffic accident reduction, provision of driver

Illinois State Board of Education, Springfield.

141

Comparison of the Decision Support Systems and the Transaction Support System Development Methodologies  

Microsoft Academic Search

There is a substantial difference between the development methodologies of the following two Information Systems: Transaction Support System (TSS) and Decision Support System (DSS). The central concern of the Transaction Support System that supports the operational world in organizations is transaction processing. The retrieval of information for analytical purposes is in the very focus of the Decision Support System. The

Vinko Cippico

1997-01-01

142

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

NASA Technical Reports Server (NTRS)

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.

1976-01-01

143

Using a group support system to support client assessment  

Microsoft Academic Search

The paper describes the application of a group decision support system (GDSS) to the work of a panel of public sector workers assessing the needs of clients for various forms of social support and benefit. In particular, the paper focuses on the development of consistency of approach to judgement when the workers come from a variety of professional backgrounds. The

Martin Read; Tony Gear; Rune Devold

1998-01-01

144

Solar energy decision support system  

NASA Astrophysics Data System (ADS)

Energy plays a prominent role in human society. As a result of technological and industrial development, the demand for energy is rapidly increasing. Existing power sources that are mainly fossil fuel based are leaving an unacceptable legacy of waste and pollution apart from diminishing stock of fuels. Hence, the focus is now shifted to large-scale propagation of renewable energy. Renewable energy technologies are clean sources of energy that have a much lower environmental impact than conventional energy technologies. Solar energy is one such renewable energy. Most renewable energy comes either directly or indirectly from the sun. Estimation of solar energy potential of a region requires detailed solar radiation climatology, and it is necessary to collect extensive radiation data of high accuracy covering all climatic zones of the region. In this regard, a decision support system (DSS) would help in estimating solar energy potential considering the region's energy requirement. This article explains the design and implementation of DSS for assessment of solar energy. The DSS with executive information systems and reporting tools helps to tap vast data resources and deliver information. The main hypothesis is that this tool can be used to form a core of practical methodology that will result in more resilient in time and can be used by decision-making bodies to assess various scenarios. It also offers means of entering, accessing, and interpreting the information for the purpose of sound decision making.

Ramachandra, T. V.; Jha, Rajeev Kumar; Vamsee Krishna, S.; Shruthi, B. V.

2005-12-01

145

Solar energy decision support system  

NASA Astrophysics Data System (ADS)

Energy plays a prominent role in human society. As a result of technological and industrial developments, the demand for energy is rapidly increasing. Existing power sources that are mainly fossil fuel based are leaving an unacceptable legacy of waste and pollution apart from diminishing stock of fuels. Hence, the focus is now shifted to large-scale propagation of renewable energy. Renewable energy technologies are clean sources of energy that have a much lower environmental impact than conventional energy technologies. Solar energy is one such renewable energy. Most renewable energy comes either directly or indirectly from the sun. Estimation of solar energy potential of a region requires detailed solar radiation climatology, and it is necessary to collect extensive radiation data of high accuracy covering all climatic zones of the region. In this regard, a decision support system (DSS) would help to estimate solar energy potential considering the regions’ energy requirement. This article explains the design and implementation of DSS for assessment of solar energy. The DSS with executive information systems and reporting tools helps to tap vast data resources and deliver information. The main hypothesis is that this tool can be used to form a core of practical methodology that is resilient and can be used by decision-making bodies to assess various scenarios. It also offers means of entering, accessing and interpreting the information for the purpose of sound decision-making.

Ramachandra, T. V.; Rajeev Kumar, J.; Vamsee Krishna, S.; Shruthi, B. V.

2006-03-01

146

Dynamism in Electronic Performance Support Systems  

Microsoft Academic Search

This article introduces a model of dynamic electronic performance support systems. Dynamic support systems are characterized by the ability to change with experience, the ability to be updated and adjusted by the performer, and by the ability to augment other supports found in the performers' community. Dynamic systems are contrasted with the static nature of conventional models of perfor- mance

James Laffey

1995-01-01

147

Using an Event-Triggered Video Intervention System to Expand the Supervised Learning of Newly Licensed Adolescent Drivers  

PubMed Central

Objectives. We examined whether feedback from an event-triggered video intervention system reduced the number of safety-relevant driving errors made by newly licensed adolescents. Methods. We used a 1-group pretest–posttest quasi-experimental design to compare the rate of coachable error events per 1000 miles for 18 drivers who were aged 16 years. The intervention consisted of immediate visual feedback provided to the drivers and weekly event reports and videos provided to the drivers and their parents. Results. The number of coachable events was reduced by 61% overall during the intervention (?2 = 11.42; P = .001) and did not significantly increase during the second baseline, which was assessed after the intervention ended (?2 = 1.49; P = .223). The greatest reduction was seen in the category of improper turns or curves and for drivers identified at the first baseline as “high-event” drivers. Conclusions. Our results show that immediate visual feedback for adolescents and cumulative video feedback for parents and adolescents during the early period of independent driving can have a dramatic influence on the rate of safety-relevant driving events. To the extent that such events are a proxy for crash risk, we suggest that feedback can enhance adolescent driving safety.

Carney, Cher; Lee, John D.; Reyes, Michelle L.; Raby, Mireille

2010-01-01

148

Bioregenerative life-support systems.  

PubMed

Long-duration future habitation of space involving great distances from Earth and/or large crew sizes (eg, lunar outpost, Mars base) will require a controlled ecological life-support system (CELSS) to simultaneously revitalize atmosphere (liberate oxygen and fix carbon dioxide), purify water (via transpiration), and generate human food (for a vegetarian diet). Photosynthetic higher plants and algae will provide the essential functions of biomass productivity in a CELSS, and a combination of physicochemical and bioregenerative processes will be used to regenerate renewable resources from waste materials. Crop selection criteria for a CELSS include nutritional use characteristics as well as horticultural characteristics. Cereals, legumes, and oilseed crops are used to provide the major macronutrients for the CELSS diet. A National Aeronautics and Space Administration (NASA) Specialized Center of Research and Training (NSCORT) was established at Purdue University to establish proof of the concept of the sustainability of a CELSS. The Biosphere 2 project in Arizona is providing a model for predicted and unpredicted situations that arise as a result of closure in a complex natural ecosystem. PMID:7942592

Mitchell, C A

1994-11-01

149

Bioregenerative life-support systems  

NASA Technical Reports Server (NTRS)

Long-duration future habitation of space involving great distances from Earth and/or large crew sizes (eg, lunar outpost, Mars base) will require a controlled ecological life-support system (CELSS) to simultaneously revitalize atmosphere (liberate oxygen and fix carbon dioxide), purify water (via transpiration), and generate human food (for a vegetarian diet). Photosynthetic higher plants and algae will provide the essential functions of biomass productivity in a CELSS, and a combination of physicochemical and bioregenerative processes will be used to regenerate renewable resources from waste materials. Crop selection criteria for a CELSS include nutritional use characteristics as well as horticultural characteristics. Cereals, legumes, and oilseed crops are used to provide the major macronutrients for the CELSS diet. A National Aeronautics and Space Administration (NASA) Specialized Center of Research and Training (NSCORT) was established at Purdue University to establish proof of the concept of the sustainability of a CELSS. The Biosphere 2 project in Arizona is providing a model for predicted and unpredicted situations that arise as a result of closure in a complex natural ecosystem.

Mitchell, C. A.

1994-01-01

150

Databsse system approach the management decision support  

Microsoft Academic Search

Traditional intuitive methods of decision-making are no longer adequate to deal with the complex problems faced by the modern policymaker. Thus systems must be developed to provide the information and analysis necessary for the decisions which must be made. These systems are called decision support systems. Although database systems provide a key ingredient to decision support systems, the problems now

John J. Donovan

1976-01-01

151

Effect of the Airbag Restraint System on Secondary Impact and Out-of-Position Driver.  

National Technical Information Service (NTIS)

The goal of the study was to investigate the performance of an ACRS in crashes where more than a single impact may occur, and to determine the degree to which air bag vent area and driver seated position influence the degree of injury received by a driver...

M. Fitzpatrick

1986-01-01

152

Deformable supporting element and reclining system  

US Patent & Trademark Office Database

The invention relates to a deformable support element for use in a bed system, and to a bed system comprising the support elements. The bed system is suited in particular for use in the prevention of the development of decubitus by recumbent patients. The support element according to the invention consists of a support plate, flexible edge elements connected at each end to the support plate allowing for a directed movement of the end of the support plate out of an unloaded position, and one or more actuators beneath the support plate for deforming the support plate. The invention is advantageously characterized in that the support plate of the support element can take on a straight shape by the actuation of the actuator or actuators or can be deformed into an undulated shape or into a movement that is directed upward or downward.

2013-04-02

153

Thorough static analysis of device drivers  

Microsoft Academic Search

Bugs in kernel-level device drivers cause 85% of the system crashes in the Windows XP operating system (44). One of the sources of these errors is the complexity of the Windows driver API itself: programmers must master a complex set of rules about how to use the driver API in order to create drivers that are good clients of the

Thomas Ball; Ella Bounimova; Byron Cook; Vladimir Levin; Jakob Lichtenberg; Con Mcgarvey; Bohus Ondrusek; Sriram K. Rajamani; Abdullah Ustuner

2006-01-01

154

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

NASA Astrophysics Data System (ADS)

We 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(3+)-doped Sr5(PO4)3F 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 h, although values of (eta)G greater than or equal to 11 and COE's less than or equal to 6.6 cents/kW 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 COE's.

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

1995-06-01

155

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

NASA Astrophysics Data System (ADS)

We present a conceptual design of a diode-pumped solid-state-laser (DPSSL) driver for an inertial fusion energy (IFE) power plant based on the minimized 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$e) using a new gain medium [Yb3+-doped Sr5(PO4)3F, or Yb:S-FAP] includes a product of laser efficiency and target gain of (eta) G equals 7, and a COE of 8.6 cents/kW(DOT)h, although values of (eta) G greater than or equal to 11 and COEs less than or equal to 6.6 cents/kW(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.

Orth, Charles D.; Payne, Stephen A.

1995-12-01

156

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

ERIC Educational Resources Information Center

"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…

Makwana, Alpesh P.

2009-01-01

157

DECISION-SUPPORT SYSTEM FOR DIAGNOSTICS RESEARCH  

EPA Science Inventory

In Phase 1 of this research, we will identify existing tools, methods, and models available to support establishment of cause-effect relationships. In Phase 2, we will investigate existing decision support systems and produce an appropriate decision support system design. Based ...

158

Open Systems Approach to Supportability.  

National Technical Information Service (NTIS)

The open systems approach is both a technical approach to weapons systems engineering and a preferred business strategy that is becoming widely applied by manufacturers of large complex systems. Today, legacy systems continue to be developed with their ow...

A. G. Larson C. K. Banning J. F. Leonard

2002-01-01

159

An Active Substrate Driver for Enabling Mixed-Voltage SOI Systems-On-A-Chip  

NASA Technical Reports Server (NTRS)

The current trend for space application systems is towards fully integrated systems-on-a-chip. To facilitate this drive, high-voltage transistors must reside on the same substrate as low-voltage transistors. These systems must also be radiation tolerant, particularly for space missions such as the Europa Lander and Titan Explorer. SOI CMOS technology offers high levels of radiation hardness. As a result, a high-voltage lateral MOSFET has been developed in a partially-depleted (PD) SOI technology. Utilizing high voltages causes a parasitic transistor to have non-negligible effects on a circuit. Several circuit architectures have been used to compensate for the radiation induced threshold voltage shift of the parasitic back-channel transistor. However, a new architecture for high-voltage systems must be employed to bias the substrate to voltage levels insuring all parasitic transistors remain off. An active substrate driver has been developed to accomplish task. Additional information is contained in the original extended abstract.

Jackson, S. A.; Blalock, B. J.; Mojarradi, M. M.; Li, H. W.

2001-01-01

160

Digital Fire Control Systems Support.  

National Technical Information Service (NTIS)

The objective of this initiative is to provide support for software development which includes software coding, Software Document Review and Updates, Software Requirements review and generation, participation in Integrated Product Development Team (IPT) m...

I. Nayee

2012-01-01

161

Magnetic Resonance Elastography with a Phased-Array Acoustic Driver System  

PubMed Central

Dynamic Magnetic Resonance Elastography (MRE) quantitatively maps the stiffness of tissues by imaging propagating shear waves in the tissue. These waves can be produced from intrinsic motion sources (e.g., due to cardiac motion), from external motion sources that produce motion directly at depth in tissue (e.g., amplitude-modulated focused ultrasound), and from external actuators that produce motion at the tissue surface that propagates into the tissue. With external actuator setups, typically only a single transducer is used to create the shear waves, which in some applications might have limitations due to shadowing and attenuation of the waves. To address these limitations, a phased-array acoustic driver system capable of applying independently controlled waveforms to each channel was developed and tested. It was found that the system produced much more uniform illumination of the object, improving the quality of the elastogram. It was also found that the accuracy of the stiffness value of any arbitrary region of interest could be improved by obtaining maximal shear wave illumination with the phased array capability of the system.

Mariappan, Yogesh K; Rossman, Phillip J; Glaser, Kevin J; Manduca, Armando; Ehman, Richard L

2010-01-01

162

Science Drivers for Polarimetric Exploration of the Solar System and Beyond  

NASA Astrophysics Data System (ADS)

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.

Yanamandra-Fisher, P. A.

2012-12-01

163

Multimodal estimation of a driver's spontaneous irritation  

Microsoft Academic Search

In this paper we present our latest achievements in the continuous estimation of a driver's spontaneous irritation. Experiments are conducted with data from 20 drivers, recorded under real driving conditions. While driving, participants also interact with a speech dialogue system to retrieve and play music. A fusion method is proposed to integrate information on the driving environment, driver behavior, driver's

Lucas Malta; Chiyomi Miyajima; Norihide Kitaoka; Kazuya Takeda

2009-01-01

164

Full duplex CRT and teletypewriter driver  

Microsoft Academic Search

The full duplex CRT and TTY driver runs under Interdata's Real Time Operating System. The following enhancements are obtained with the full duplex driver over current CRT and TTY drivers. The driver is reentrant and controls many CRTs and TTYs of differing types, because device-dependent information is kept in the device's control block. Input and output is separate (full duplex

McGoldrick

1975-01-01

165

Dynamism in Electronic Performance Support Systems.  

ERIC Educational Resources Information Center

Describes a model for dynamic electronic performance support systems based on NNAble, a system developed by the training group at Apple Computer. Principles for designing dynamic performance support are discussed, including a systems approach, performer-centered design, awareness of situated cognition, organizational memory, and technology use.…

Laffey, James

1995-01-01

166

Clinical Decision Support Systems: Perspectives in Dentistry  

Microsoft Academic Search

Clinical decision-support systems (CDSSs) are computer programs that are designed to provide expert support for health professionals making clinical decisions. The goal of these systems is to help health professionals analyze patient data and make decisions regarding diagnosis, prevention, and treatment of health problems. This article discusses the characteristics of such systems, addresses the challenges in developing them, identifies potential

Eneida A. Mendonça

2004-01-01

167

Academic Support Systems: A Networked Approach.  

ERIC Educational Resources Information Center

Basic design and implementation issues encountered in providing academic support systems are examined. "Academic support systems" describes the growing class of university computing that is being developed to integrate administrative computing environments. These systems may be typically characterized by the activities that center around a dean's…

Klingenstein, Kenneth J.

168

Advanced driver assistance system for AHS over communication links with random packet dropouts  

NASA Astrophysics Data System (ADS)

In this paper, we propose an advanced driver assist system (ADAS) for platoon based automated highway system (AHS) with packet loss in inter-vehicle communication. Using the concept of rigidity, we first show that vehicles in a platoon tend to fall apart in the event of a packet loss among vehicles. To overcome this, we propose an estimation based dynamic platooning algorithm which employs the state estimate to maintain the platoon. Communication among the vehicle is reduced by using minimum spanning tree (MST) in state estimation algorithm. Effectiveness of the proposed ADAS scheme is illustrated by simulation wherein, dynamic platoons of holonomic vehicles with integrator dynamics are considered. Simulation studies indicate that the proposed algorithm maintains the platoon up to a packet loss rate of 48%. State transmission scheme proposed in our algorithm has three significant advantages, they are: (1) it handles packet loss in inter-vehicle communication, (2) reduces the effect of error in measured output, and (3) reduces the inter-vehicle communication. These advantages significantly increase the reliability and safety of the AHS.

Srinivasan, Seshadhri; Ayyagari, Ramakalyan

2014-12-01

169

Using Personas and Scenarios as an Interface Design Tool for Advanced Driver Assistance Systems  

Microsoft Academic Search

When looking at the traditional way of conducting human factors research within the active safety area, focus often tends\\u000a to be on drivers’ cognitive capacities like; situation awareness, workload and behavioural adaptation. This research is of\\u000a course invaluable but other important issues that tend to be forgotten are: What are the drivers’ needs and how should an\\u000a interface be designed

Anders Lindgren; Fang Chen; Per Amdahl; Per Chaikiat

2007-01-01

170

Controlled Ecological Life Support System. Life Support Systems in Space Travel  

NASA Technical Reports Server (NTRS)

Life support systems in space travel, in closed ecological systems were studied. Topics discussed include: (1) problems of life support and the fundamental concepts of bioregeneration; (2) technology associated with physical/chemical regenerative life support; (3) projection of the break even points for various life support techniques; (4) problems of controlling a bioregenerative life support system; (5) data on the operation of an experimental algal/mouse life support system; (6) industrial concepts of bioregenerative life support; and (7) Japanese concepts of bioregenerative life support and associated biological experiments to be conducted in the space station.

Macelroy, R. D. (editor); Smernoff, D. T. (editor); Klein, H. P. (editor)

1985-01-01

171

Organizational decision support systems: Centralized support for decentralized organizations  

Microsoft Academic Search

Organizations are becoming increasingly decentralized in their operations and decision making. Advanced information technologies provide the glue that holds such organizations together and facilitates their operations. Organizational decision support systems (ODSSs) provide mechanisms for ensuring that the decisions being made throughout such organizations are consistent with each other and with the overall organization goals. Through means of an ODSS, information

Warren E. Walker

1994-01-01

172

Decision station: situating decision support systems  

Microsoft Academic Search

Internet facilitates access to data, information, and knowledge sources, but at the same time threatens to cognitively overload the decision makers. This necessitates the development of effective decision support tools to properly inform the decision process. So far the response from the field of decision support systems has not been adequate. Internet technologies require new type of decision support that

Rustam M. Vahidov; Gregory E. Kersten

2004-01-01

173

The long-term effect of Intelligent Speed Adaptation on driver behaviour.  

PubMed

This paper investigates the impact of prolonged experience with an Intelligent Speed Adaptation (ISA) system on driver behaviour. ISA refers to a driver support system which brings speed limit information into the vehicle. Drivers' interaction with the ISA system was explored by means of data collected from long-term field trials carried out in the UK and Sweden. Results indicated that participants' overriding behaviour increased in line with system exposure. However, there was no strong evidence supporting a generalised turning point of behavioural changes (e.g. 3000km, 4000km, or 5000km accumulated experience) at which the upward trend plateaued. Driver characteristics were found to be influential on the pattern of overriding the ISA system with respect to subjective measures (intention to speed) as well as objective measures (observed speeding behaviour). Driving environment also demonstrated an impact on participants' overriding behaviour. Implications for driver behavioural changes in the presence of a generic ADAS are discussed. PMID:19446791

Lai, Frank; Hjälmdahl, Magnus; Chorlton, Kathryn; Wiklund, Mats

2010-03-01

174

Integrated support systems for electric utility operations  

SciTech Connect

Power system dispatch, the real-time monitoring and coordination of transmission and generation facilities, is the focal point of power system operations. However, dispatch is just one of the many duties of the typical power system operations department. Many computer-based tools and systems are used in support of these duties. Energy management systems (EMS), the centralized, mainframe-, or mini-computer-based systems that support dispatch, have been widely publicized, but few of the other support systems have been given much notice. This article provides an overview of these support tools and systems, frames the major issues faced in systems integration, and describes the path taken to integrate EMS, workstations, desktop computers, networks and applications. Network architecture enables the distribution of real-time operations data throughout the company, from EMS to power plants to district offices, on an unprecedented scale.

Hong, H.W.; Imparato, C.F.; Becker, D.L.; Malinowski, J.H. (Pacific Gas and Electric Co. (US))

1992-01-01

175

Unmanned systems win unexpected support  

SciTech Connect

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.

Schneiderman, R.

1991-09-01

176

Operating system support for database management  

Microsoft Academic Search

Several operating system services are examined with a view toward their applicability to support of database management functions. These services include buffer pool management; the file system; scheduling, process management, and interprocess communication; and consistency control.

Michael Stonebraker

1981-01-01

177

Developing Sustainable Life Support System Concepts  

NASA Technical Reports Server (NTRS)

Sustainable spacecraft life support concepts may allow the development of more reliable technologies for long duration space missions. Currently, life support technologies at different levels of development are not well evaluated against each other, and evaluation methods do not account for long term reliability and sustainability of the hardware. This paper presents point-of-departure sustainability evaluation criteria for life support systems, that may allow more robust technology development, testing and comparison. An example sustainable water recovery system concept is presented.

Thomas, Evan A.

2010-01-01

178

Planning Support Systems: Content, Issues and Trends  

Microsoft Academic Search

Since we edited Planning Support Systems in Practice (Geertman and Stillwell 2003), we have become increasingly aware that successful applications of geo-technology by planning\\u000a practitioners to support their activities are far from commonplace. It is disturbing, in fact, to observe the extent to which\\u000a new computer-based support systems are developed by researchers to the point of adoption but are never

Stan Geertman; John Stillwell

179

Design of an FMS decision support system  

Microsoft Academic Search

Flexible manufacturing system (FMS) is an integrated system consisting of computer numerical control machine tools and automated material handling system controlled by an overall control computer system. The FMS design is broken down into strategic, tactical and operational level designs. This research is concerned with the development of a decision support system for the design of FMS (FMSDDS. Simulation is

A. A. ALY; M. SUBRAMANIAM

1993-01-01

180

Supporting multiple operating systems in media devices  

US Patent & Trademark Office Database

Techniques and tools for supporting multiple operating systems in consumer electronic devices. For example, techniques and tools are described that allow quickly switching between operating systems in video disc players that support different media types while reducing wait time and mitigating possible negative impacts to user experience.

2011-10-25

181

Instructional Support Software System. Final Report.  

ERIC Educational Resources Information Center

This report describes the development of the Instructional Support System (ISS), a large-scale, computer-based training system that supports both computer-assisted instruction and computer-managed instruction. Written in the Ada programming language, the ISS software package is designed to be machine independent. It is also grouped into functional…

McDonnell Douglas Astronautics Co. - East, St. Louis, MO.

182

Design Rules for Life Support Systems.  

National Technical Information Service (NTIS)

This paper considers some of the common assumptions and engineering rules of thumb used in life support system design. One general design rule is that the longer the mission, the more the life support system should use recycling and regenerable technologi...

H. Jones

2002-01-01

183

FOCUS OF ATTENTION IN DECISION SUPPORT SYSTEMS  

Microsoft Academic Search

In this paper, we argue that natural language interfaces with discourse capabilities have an important role to play in decision support systems, because such interfaces are re- sponsive to focus of attention in the mind of a human decision maker. The decision support systems that we will discuss employ graphical user interfaces. They are characterized by strict ordering requirements for

John O. Gurney; Elaine Marsh; Kenneth Wauchope

1993-01-01

184

Flight software requirements and design support system  

NASA Technical Reports Server (NTRS)

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

Riddle, W. E.; Edwards, B.

1980-01-01

185

Liver support systems: promise and reality.  

PubMed

Effective liver support is needed for a variety of indications. A large number of both biological (containing hepatocytes) and non-biological extracorporeal liver support systems have been described in the literature over the last 50 years. Despite this, there is a paucity of good quality randomized control data examining the effectiveness of these therapies in human liver failure. In this review article, we examine the available data, with particular emphasis on the current front runners, the MARS and HepatAssist systems. Other problems associated with the development of these liver support systems are also discussed. Although promising in animal studies, we conclude that the use of these technologies is not supported currently by a sufficient evidence base to recommend them for routine clinical use and that a lack of understanding about the critical functions required of a liver support system is retarding a more rational approach to the design of these systems. PMID:16336437

Wigg, Alan J; Padbury, Robert T

2005-12-01

186

An Evaluation of Graduated Driver Licensing Effects on Fatal Crash Involvements of Young Drivers in the United States  

PubMed Central

Objective Graduated driver licensing (GDL) systems are designed to reduce the high crash risk of young novice drivers. Almost all states in the United States have some form of a three-phased GDL system with various restrictions in the intermediate phase. Studies of the effects of GDL in various states show significant reductions in fatal crash involvements of 16- and 17-year-old drivers; however, only a few national studies of GDL effects have been published. The objective of this national panel study was to evaluate the effect of GDL laws on the fatal crash involvements of novice drivers while controlling for possible confounding factors not accounted for in prior studies. Methods The Fatality Analysis Reporting System (FARS) was used to examine 16- and 17-year-old driver involvement in fatal crashes (where GDL laws are applied) relative to two young driver age groups (19-20, 21-25) where GDL would not be expected to have an effect. Dates when various GDL laws were adopted in the states between 1990 and 2007 were coded from a variety of sources. Covariates in the longitudinal panel regression analyses conducted included four laws that could have an effect on 16- and 17-year-old drivers: primary enforcement seat belt laws, zero-tolerance (ZT) alcohol laws for drivers younger than age 21, lowering the blood alcohol concentration limit for driving to .08, and so-called “use and lose” laws where drivers aged 20 and younger lose their licenses for underage drinking violations. Results The adoption of a GDL law of average strength was associated with a significant decrease in fatal crash involvements of 16- and 17-year-old drivers relative to fatal crash involvements of one of the two comparison groups. GDL laws rated as “good” showed stronger relationships to fatal crash reductions, and laws rated as “less than good” showed no reductions in crash involvements relative to the older driver comparison groups. Conclusions States that adopt a basic GDL law can expect a decrease of 8 to 14% in the proportion of 16- and 17-year-old drivers involved in fatal crashes (relative to 21- to 25-year-old drivers), depending upon their other existing laws that affect novice drivers, such as those used in these analyses. This finding is consistent with recent national studies that used different outcome measures and covariates. The results of this study provide additional support for states to adopt, maintain, and upgrade GDL systems to reduce youthful traffic crash fatalities.

Fell, James C.; Jones, Kristina; Romano, Eduardo; Voas, Robert

2013-01-01

187

Automated CPX support system preliminary design phase  

NASA Technical Reports Server (NTRS)

The development of the Distributed Command and Control System (DCCS) is discussed. The development of an automated C2 system stimulated the development of an automated command post exercise (CPX) support system to provide a more realistic stimulus to DCCS than could be achieved with the existing manual system. An automated CPX system to support corps-level exercise was designed. The effort comprised four tasks: (1) collecting and documenting user requirements; (2) developing a preliminary system design; (3) defining a program plan; and (4) evaluating the suitability of the TRASANA FOURCE computer model.

Bordeaux, T. A.; Carson, E. T.; Hepburn, C. D.; Shinnick, F. M.

1984-01-01

188

Automated CPX support system preliminary design phase  

NASA Astrophysics Data System (ADS)

The development of the Distributed Command and Control System (DCCS) is discussed. The development of an automated C2 system stimulated the development of an automated command post exercise (CPX) support system to provide a more realistic stimulus to DCCS than could be achieved with the existing manual system. An automated CPX system to support corps-level exercise was designed. The effort comprised four tasks: (1) collecting and documenting user requirements; (2) developing a preliminary system design; (3) defining a program plan; and (4) evaluating the suitability of the TRASANA FOURCE computer model.

Bordeaux, T. A.; Carson, E. T.; Hepburn, C. D.; Shinnick, F. M.

1984-03-01

189

Making Driver Modeling Attractive  

Microsoft Academic Search

intervention. Many DAS applications are safety oriented, such as lane departure warning systems. Some are com-fort oriented, such as automated parking assistants. Still others are designed to alleviate the driver's attentional load, for example, traffic signal detectors or the already deployed intelligent cruise control systems. These systems must adapt to varying traffic situations to achieve the goal of enhanced safety

Antonio Pellecchia; Christian Igel; Johann Edelbrunner; Gregor Schöner

2005-01-01

190

Performance Support Systems: Guidelines for System Design and Integration.  

ERIC Educational Resources Information Center

Describes the components of electronic performance support systems that are used for the provision of information, decision support, and training for on-the-job employees. Rationale for the use of performance support systems is discussed, design of the systems is considered, development and distribution are addressed, and future possibilities are…

Milheim, William D.

1992-01-01

191

Drunk Driver and Jail: The Drunk Driver and the Jail Problem. Volume 1.  

National Technical Information Service (NTIS)

Despite growing public and legislative support for jailing drunk drivers, not all agree that this sanction is appropriate for the drunk driving offense (DWI). Some people see other solutions to the traffic safety problem - better educated drivers, better ...

1986-01-01

192

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

NASA Astrophysics Data System (ADS)

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.

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

2010-02-01

193

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

NASA Technical Reports Server (NTRS)

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.

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

1992-01-01

194

Business Management System Support Analysis  

NASA Technical Reports Server (NTRS)

The purpose of this research project was to develop a searchable database compiled with internal and external audit findings/observations. The data will correspond to the findings and observations from the date of Center-wide implementation of the ISO 9001-2000 standard to the present (2003-2008). It was derived and extracted from several sources and was in multiple formats. Once extracted, categorization of the findings/observations would be possible. The final data was mapped to the ISO 9001-2000 standard with the understanding that it will be displayed graphically. The data will be used to verify trends, associate risks, and establish timelines to identify strengths and weaknesses to determine areas of improvement in the Kennedy Space Center Business Management System Internal Audit Program.

Parikh, Jay

2008-01-01

195

Network support for system initiated checkpoints  

DOEpatents

A system, method and computer program product for supporting system initiated checkpoints in parallel computing systems. The system and method generates selective control signals to perform checkpointing of system related data in presence of messaging activity associated with a user application running at the node. The checkpointing is initiated by the system such that checkpoint data of a plurality of network nodes may be obtained even in the presence of user applications running on highly parallel computers that include ongoing user messaging activity.

Chen, Dong; Heidelberger, Philip

2013-01-29

196

Using computerised decision-support systems.  

PubMed

Decision support is an extension of electronic health record or electronic patient record systems. As well as enabling health professionals to look up information about individual patients stored in the system and to consult evidence-based guidance, they give advice on the treatment and management most appropriate for that patient. They are designed to help with the process of clinical decision making. Computerised decision-support systems match patient characteristics to a computerised knowledge base to produce patient-specific assessments or recommendations. Decision support can be paper-based, but computerised systems have the advantage of being able to quickly process patient-specific information and match it to computerised decision rules or algorithms. This article discusses the benefits and limitations of using decision-support technology, which is becoming increasingly important as the use of health information technology systems becomes more common across healthcare. PMID:24245371

Dowding, Dawn

197

Mathematical Modeling Of Life-Support Systems  

NASA Technical Reports Server (NTRS)

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.

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

1994-01-01

198

Examining teachers' perceptions of children's support systems.  

PubMed

Teachers of 94 youth evaluated the functionality of their students' support systems by completing the Personal History Inventory for Children (Parish & Wigle, 1985). An analysis of variance revealed significant main effects due to students' family structure, gender, and birth order. Specifically, youth from divorced nonremarried and divorced remarried families experienced more dysfunctional support systems than youth from intact families. Further, boys were found to be at more risk than girls, and later borns were found to experience more support system failure than firstborns. PMID:2319484

Parish, T S

1990-01-01

199

Detection and Categorization of Altercontrol. Phase 2 Report to BMW on a Methodical Approach for the Engineering of Driver Assistance Systems.  

National Technical Information Service (NTIS)

A concept is developed and demonstrated for measuring normal driving behavior in a specialized way that reveals the contrast between human preferences in vehicle control and the functionality of any given driver assistance system (DAS). The concept basica...

R. Ervin Z. Bareket P. Fancher J. Sullivan M. L. Mefford D. Le Blanc M. Hagan

2001-01-01

200

Design Rules for Life Support Systems  

NASA Technical Reports Server (NTRS)

This paper considers some of the common assumptions and engineering rules of thumb used in life support system design. One general design rule is that the longer the mission, the more the life support system should use recycling and regenerable technologies. A more specific rule is that, if the system grows more than half the food, the food plants will supply all the oxygen needed for the crew life support. There are many such design rules that help in planning the analysis of life support systems and in checking results. These rules are typically if-then statements describing the results of steady-state, "back of the envelope," mass flow calculations. They are useful in identifying plausible candidate life support system designs and in rough allocations between resupply and resource recovery. Life support system designers should always review the design rules and make quick steady state calculations before doing detailed design and dynamic simulation. This paper develops the basis for the different assumptions and design rules and discusses how they should be used. We start top-down, with the highest level requirement to sustain human beings in a closed environment off Earth. We consider the crew needs for air, water, and food. We then discuss atmosphere leakage and recycling losses. The needs to support the crew and to make up losses define the fundamental life support system requirements. We consider the trade-offs between resupplying and recycling oxygen, water, and food. The specific choices between resupply and recycling are determined by mission duration, presence of in-situ resources, etc., and are defining parameters of life support system design.

Jones, Harry

2002-01-01

201

Life Support Systems Microbial Challenges  

NASA Technical Reports Server (NTRS)

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.

Roman, Monsi C.

2010-01-01

202

A 600V driver IC with new short protection in hybrid electric vehicle IGBT inverter system  

Microsoft Academic Search

We have developed a 600V high voltage half-bridge gate driver IC used to drive large current inverters such as those used in HEVs (hybrid electric vehicles). In order to improve the robustness of short circuit operation, a new short protection circuit and a noise removal circuit were proposed. Furthermore, a reduction of the short circuit current was examined. Thus, this

Katsumi Ishikawa; Koichi Suda; Masataka Sasaki; Hideki Miyazaki

2005-01-01

203

A Drowsiness and Point of Attention Monitoring System for Driver Vigilance  

Microsoft Academic Search

This paper presents a framework that combines a robust facial features location with an elliptical face modelling to measure driver's vigilance level. The proposed solution deals with the computation of eyelid movement parameters and head (face) point of attention. The most important facial feature points are automatically detected using a statistically anthropometric face model. After observing the structural symmetry of

Jorge Batista

2007-01-01

204

A Driver Behavior Recognition Method Based on a Driver Model Framework  

Microsoft Academic Search

A method for detecting drivers' intentions is essential to facilitate operating mode transitions between driver and driver assistance systems. We propose a driver behavior recognition method using Hidden Markov Models (HMMs) to characterize and detect driving maneuvers and place it in the framework of a cognitive model of human behavior. HMM-based steering behavior models for emergency and normal lane changes

Nobuyuki Kuge; Tomohiro Yamamura; Osamu Shimoyama; Andrew Liu

205

Perspectives on Electronic Performance Support Systems.  

ERIC Educational Resources Information Center

The complexity of the modern workplace means that decision makers are entertaining the idea of providing employees with software applications that are designed to provide true support and on-the-job training from the employee's desktop computer. An electronic performance support system (EPSS) is the tool that can make such training a reality when…

Scales, Glenda Rose; Yang, Chia-Shing

206

Student Support Systems in Distance Education.  

ERIC Educational Resources Information Center

Discusses student support systems in distance education based on experiences at the Open University (United Kingdom). Topics addressed include distance education versus traditional education; changes in the learning process; management theory; student support as a service industry; course production; resource allocation; and decision-making…

Sewart, David

1993-01-01

207

Increasing Inspection Efficiency through Group Support Systems  

Microsoft Academic Search

Previous research has found that that software inspection teams that use group support systems (GSS) are more effective and efficient in finding defects than inspection teams using the traditional paper logging method. In an earlier study, GSS-supported teams found forty percent more major defects and forty percent more defects per inspection hour. This paper extends previous research by examining the

Thomas Lee Rodgers; Douglas L. Dean; Jay F. Nunamaker Jr.

2004-01-01

208

Tactical Decision Making and Decision Support Systems.  

ERIC Educational Resources Information Center

The use of computerized decision support systems in higher education for making tactical institutional decisions is reviewed, with attention to the kind of administrative problems that lie somewhere between programmed to nonprogrammed decisions and require a combination of computer support and administrative judgment. (MSE)

Harmon, Joel I.

1986-01-01

209

Climate data system supports FIRE  

NASA Technical Reports Server (NTRS)

The NASA Climate Data System (NCDS) at Goddard Space Flight Center is serving as the FIRE Central Archive, providing a centralized data holding and data cataloging service for the FIRE project. NCDS members are carrying out their responsibilities by holding all reduced observations and data analysis products submitted by individual principal investigators in the agreed upon format, by holding all satellite data sets required for FIRE, by providing copies of any of these data sets to FIRE investigators, and by producing and updating a catalog with information about the FIRE holdings. FIRE researchers were requested to provide their reduced data sets in the Standard Data Format (SDF) to the FIRE Central Archive. This standard format is proving to be of value. An improved SDF document is now available. The document provides an example from an actual FIRE SDF data set and clearly states the guidelines for formatting data in SDF. NCDS has received SDF tapes from a number of investigators. These tapes were analyzed and comments provided to the producers. One product which is now available is William J. Syrett's sodar data product from the Stratocumulus Intensive Field Observation. Sample plots from all SDF tapes submitted to the archive will be available to FSET members. Related cloud products are also available through NCDS. Entries describing the FIRE data sets are being provided for the NCDS on-line catalog. Detailed information for the Extended Time Observations is available in the general FIRE catalog entry. Separate catalog entries are being written for the Cirrus Intensive Field Observation (IFO) and for the Marine Stratocumulus IFO. Short descriptions of each FIRE data set will be installed into the NCDS Summary Catalog.

Olsen, Lola M.; Iascone, Dominick; Reph, Mary G.

1990-01-01

210

Fusion driver study  

NASA Astrophysics Data System (ADS)

A conceptual design of multimegajoule, repetitively pulsed CO2 laser system for Inertial Confinement Fusion is presented. System configurations consisting of 50-100 kJ modules operating at subatmospheric pressures with multiple pass optical extraction appear feasible with present or near term technology. Overall laser system efficiencies of greater than 10% at repetition rates in excess of 10 Hz are possible with the state of the art pulsed power technology. The synthesis of all the laser subsystems into a specific configuration for a Laser Fusion Driver depends upon the reactor chamber(s) layout, subsystem reliability and restrictions on overall dimensions of the fusion driver. A design is presented which stacks power amplifier modules in series in a large torus with centrally located reactor chamber. Cost estimates of the overall laser fusion driver are included.

Friedman, H. W.

1980-04-01

211

Information systems planning leading to performance support systems.  

National Technical Information Service (NTIS)

Information Systems Planning Leading to Performance Support Systems. Until recently, the typical approach to information system applications was to design and implement independent systems. The result has often been redundant data and insufficient return ...

H. Pfuderer

1992-01-01

212

Cellular Manufacturing Internet Performance Support System.  

National Technical Information Service (NTIS)

The objective of this project was to develop an Internet-based electronic performance support system (EPSS) for cellular manufacturing providing hardware/software specifications, process descriptions, estimated cost savings, manufacturing simulations, tra...

M. C. Bohley M. E. Schwartz

1998-01-01

213

Effects Based Assessment Support System (EBASS).  

National Technical Information Service (NTIS)

The Effects Based Assessment Support System (EBASS) is a distributed operational assessment tool based on the principles of Value Focused Thinking (VFT) developed jointly by the Operations Research Center of Excellence (ORCEN) and the Information Technolo...

T. O. Morel E. Y. Wong J. M. Kwinn J. R. Dodge S. R. Goerger

2006-01-01

214

The modernized parts control automated support system  

Microsoft Academic Search

The authors discuss an automated data processing (ADP) system, the modernized parts control automated support system (MPCASS), and how it assists in accomplishing the US Department of Defense parts control program. MPCASS is an online system which automates many manual processes, operates in near real time, and can virtually become paperless. MPCASS can be used to access many files for

R. L. Beechey

1992-01-01

215

Employment of the Expeditionary Fire Support System.  

National Technical Information Service (NTIS)

Over the past few years there have been many articles published within the Marine Corps Gazette about which system the Marine Corps should incorporate as the Expeditionary Fire Support System (EFSS). The U.S. Marine Corps Systems Command (MARCORSYSCOM) en...

T. M. Slinger

2005-01-01

216

Conflict management and group decision support systems  

Microsoft Academic Search

Computers promise to change collaborative work in profound ways. They are likely to have special impact on processes which require fine judgments, foresight, and handling of large amounts of information, such as decision-making and strategic planning. Several authors (Huber, 1984; Kraemer and King, 1986) have discussed the potential benefits of decision support systems for organizational decision-making.Group decision support systems (GDSSs)

Marshall Scott Poole; Michael Homes; Gerardine DeSanctis

1988-01-01

217

Electronic Performance Support Systems Challenges and Problems  

Microsoft Academic Search

\\u000a After a short introduction to the concept of automation and computer based systems, chapter 2 presents the the concepts of\\u000a Electronic Performance Support Systems (EPSS). Chapter 3 specifically discusses process-centered EPSS and their realization\\u000a in software engineering and office automation. Different attitudes and requirements are pointed out. Chapter 4 argues that\\u000a computer support makes it necessary to extend Scheer’s Y

Gerhard Chroust

1999-01-01

218

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

NASA Technical Reports Server (NTRS)

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.

Bagdigian, Robert M.

2008-01-01

219

Teen and Senior Drivers.  

National Technical Information Service (NTIS)

This report updates information on teen and senior drivers published in earlier California Department of Motor Vehicles' Teen Driver Facts (Huston, 1986), Senior Driver Facts (Huston and Janke, 1986), and Teen and Senior Drivers (Romanowicz and Gebers, 19...

R. Aizenberg D. M. McKenzie

1997-01-01

220

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

NASA Astrophysics Data System (ADS)

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.

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

2011-12-01

221

Driver for DISSPLA Plotter  

NASA Technical Reports Server (NTRS)

DISPLOT is generalized outside driver for commercially-available DISSPLA (Display Integrated Software System and Plotting Language) plotting system. DISPLOT program provides user with simple-to-use graphics capability with great deal of application flexibility. DISPLOT is independent of whatever program generates data to be plotted. DISPLOT is used for generation of plotter microfilm, microfiche, and terminal plots.

Baldwin, M. L.

1983-01-01

222

STEP-AIRSEDS System Engineering Support  

NASA Technical Reports Server (NTRS)

This report summarizes and highlights the activities in support of the Space Transportation using Electrodynamic Propulsion Atmospheric Ionospheric Research Small Expendable Deployer Satellite (STEP-AIRSEDS) Project for the period of May 16, 2000 through September 28, 2001. The Alpha Technology, Inc. was tasked to provide support to the MSFC (Marshall Space Flight Center) in requirements development and in verification activities. Specifically, the Alpha Technology, Inc. task was to: (1) develop and maintain the STEP-AIRSEDS Project System Requirements Database; (2) develop and maintain the STEP-AIRSEDS requirements verification definition and planning support database; (3) perform requirements flow down analysis of STEP-AIRSEDS Project System Requirements to TMTC (The Michigan Technic Corporation) Level IV Requirements; (4) provide system engineering guidance to the Project as needed; (5) provide guidance to TMTC in preparation of Level IV Requirements; and (6) provide support to STEP-AIRSEDS meetings, reviews, and telecons as needed.

Rowell, Tom; Taliaferro, Lanny

2001-01-01

223

Life support systems for Mars transit  

NASA Technical Reports Server (NTRS)

The structural elements of life-support systems are reviewed in order to assess the suitability of specific features for use during a Mars mission. Life-support requirements are estimated by means of an approximate input/output analysis, and the advantages are listed relating to the use of recycling and regeneration techniques. The technological options for regeneration are presented in categories such as CO2 reduction, organics removal, polishing, food production, and organics oxidation. These data form the basis of proposed mission requirements and constraints as well as the definition of what constitutes an adequate reserve. Regenerative physical/chemical life-support systems are championed based exclusively on the mass savings inherent in the technology. The resiliency and 'soft' failure modes of bioregenerative life-support systems are identified as areas of investigation.

Macelroy, R. D.; Kliss, M.; Straight, C.

1992-01-01

224

Learning to Control Advanced Life Support Systems  

NASA Technical Reports Server (NTRS)

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.

Subramanian, Devika

2004-01-01

225

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

PubMed

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

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

2010-05-01

226

Peripheral detection as a measure of driver distraction. A study of memory-based versus system-based navigation in a built-up area  

Microsoft Academic Search

The effect of in-vehicle information systems (IVIS) on traffic safety is currently under debate and suitable methods for measuring and comparing the impact of such devices on driver behaviour are urgently required. The secondary-task technique may be a good tool for objective measurement of driver distraction caused by IVIS.The present study summarises previous results of secondary-task studies in traffic contexts

Lisbeth Harms; Christopher Patten

2003-01-01

227

1991 NASA Life Support Systems Analysis workshop  

NASA Technical Reports Server (NTRS)

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.

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

1992-01-01

228

A Novel Mechatronic Body Weight Support System  

Microsoft Academic Search

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

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

2006-01-01

229

Decision support system for nursing management control  

SciTech Connect

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.

Ernst, C.J.

1983-01-01

230

Self-supporting active solar energy system  

Microsoft Academic Search

The article discusses a self-supporting active solar energy system with attention to heat collection, power generation, forced circulation subsystems, and distribution. The system is described in terms of four possible states: (1) sun available and heated fluid in demand, (2) sun available and heated fluid not in demand, (3) sun not available and heated fluid not in demand, and (4)

R. Zakhariya

1977-01-01

231

Data Mining Support in Database Management Systems  

Microsoft Academic Search

The most popular data mining techniques consist in searching data- bases for frequently occurring patterns, e.g. association rules, sequential pat- terns. We argue that in contrast to today's loosely-coupled tools, data mining should be regarded as advanced database querying and supported by Database Management Systems (DBMSs). In this paper we describe our research proto- type system, which logically extends DBMS

Tadeusz Morzy; Marek Wojciechowski; Maciej Zakrzewicz

2000-01-01

232

Network based clinical decision support system  

Microsoft Academic Search

Developed prototype of network based clinical decision support system consists of database of clinical data and web-based applications for signal and image analysis methods and algorithms. The methods for eye fundus image analysis and ECG P-wave morphology evaluation are the first methods covering two clinical specialties - cardiology and ophthalmology in the system. Network based database and combined analysis of

D. Jegelevicius; A. Krisciukaitis; A. Lukosevicius; V. Marozas; A. Paunksnis; V. Barzdziukas; M. Patasius; D. Buteikiene; A. Vainoras; L. Gargasas

2009-01-01

233

An Environmental Control and Life Support System Concept for a Pressurized Lunar Rover  

NASA Technical Reports Server (NTRS)

Pressurized rovers can add many attractive capabilities to a human lunar exploration campaign, most notably by extending the reach of astronauts far beyond the immediate vicinities of lunar landers and fixed assets such as habitats. Effective campaigns will depend on an efficient allocation of environmental control and life support system (ECLSS) equipment amongst mobile rovers and fixed habitats such that widespread and sustainable exploration can be achieved. This paper will describe some of the key drivers that influence the design of an ECLSS for a pressurized lunar rover and a conceptual design that has been formulated to address those drivers. Opportunities to realize programmatic and operational efficiencies through commonality of rover ECLSS and extravehicular activity (EVA) equipment have also been explored and will be described. Plans for the inclusion of ECLSS functionality in prototype lunar rovers will be summarized

Bagdigian, Robert M.; Stambaugh, Imelda

2010-01-01

234

Locomotive driver cabin adsorption air-conditioner  

Microsoft Academic Search

Drivers can easily feel fatigue and aprosexia due to the high temperature inside the locomotive driver cabin in summer. The current locomotive driver cabin air-conditioning system cannot meet the needs of operating condition and environmental protection. It is a very urgent task to develop an air-conditioning system which is suitable for application in internal combustion engine locomotive driver cabin.The present

S Jiangzhou; R. Z Wang; Y. Z Lu; Y. X Xu; J. Y Wu; Z. H Li

2003-01-01

235

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

DOEpatents

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.

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

2013-01-15

236

Expert system support for HST operations  

NASA Technical Reports Server (NTRS)

An expert system is being developed to support vehicle anomaly diagnosis for the Hubble Space Telescope (HST). Following a study of safemode entry analyses, a prototype system was developed which reads engineering telemetry formats, and when a safemode event is detected, extracts telemetry from the downlink and writes it into a knowledge base for more detailed analyses. The prototype then summarizes vehicle events (limits exceeded, specific failures). This prototype, the Telemetry Analysis Logic for Operations Support (TALOS) uses the Lockheed Expert System (LES) shell, and includes over 1600 facts, 230 rules, and 27 goals. Although considered a prototype, it is already an operationally useful system. The history leading into the TALOS prototype will be discussed, an overview of the present TALOS system will be presented, and the role of the TALOS system in contingency planning will be delineated.

Cruse, Bryant; Wende, Charles

1987-01-01

237

Controlled ecological life support system: Transportation analysis  

NASA Technical Reports Server (NTRS)

This report discusses a study utilizing a systems analysis approach to determine which NASA missions would benefit from controlled ecological life support system (CELSS) technology. The study focuses on manned missions selected from NASA planning forecasts covering the next half century. Comparison of various life support scenarios for the selected missions and characteristics of projected transportation systems provided data for cost evaluations. This approach identified missions that derived benefits from a CELSS, showed the magnitude of the potential cost savings, and indicated which system or combination of systems would apply. This report outlines the analytical approach used in the evaluation, describes the missions and systems considered, and sets forth the benefits derived from CELSS when applicable.

Gustan, E.; Vinopal, T.

1982-01-01

238

A vision-based driver nighttime assistance and surveillance system based on intelligent image sensing techniques and a heterogamous dual-core embedded system architecture.  

PubMed

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

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

2012-01-01

239

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

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.

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

2012-01-01

240

Overview of Clinical Decision Support Systems  

Microsoft Academic Search

Clinical decision support systems (CDSS) are computer systems designed to impact clinician decision making about individual\\u000a patients at the point in time that these decisions are made.With the increased focus on the prevention of medical errors that\\u000a has occurred since the publication of the landmark Institute of Medicine report, To Err Is Human, computer-based physician order entry (CPOE) systems, coupled

Eta S. Berner; Tonya J. La Lande

241

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

DOEpatents

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.

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

1981-01-01

242

Servo Valve Driver.  

National Technical Information Service (NTIS)

The magnetic control circuit and transistor driver is for a hydraulic transfer valve of the type used in guided missile control systems. A binary control circuit is provided for such a valve in which control is accomplished through regulation of the satur...

R. A. Freiberg

1964-01-01

243

Using Visualization in Cockpit Decision Support Systems  

SciTech Connect

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.

Aragon, Cecilia R.

2005-07-01

244

Ion Thruster Support and Positioning System  

NASA Technical Reports Server (NTRS)

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.

Haag, Thomas W. (Inventor)

1998-01-01

245

Birds of a Feather: Supporting Secure Systems  

SciTech Connect

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.

Braswell III, H V

2006-04-24

246

DRIVER DISTRACTION: A REVIEW OF THE LITERATURE  

Microsoft Academic Search

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

Kristie Young; Michael Regan; Mike Hammer

247

Driver Magician Lite 3.5  

NSDL National Science Digital Library

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.

2009-04-19

248

Support for User Interfaces for Distributed Systems  

NASA Technical Reports Server (NTRS)

An extensible Java(TradeMark) software framework supports the construction and operation of graphical user interfaces (GUIs) for distributed computing systems typified by ground control systems that send commands to, and receive telemetric data from, spacecraft. Heretofore, such GUIs have been custom built for each new system at considerable expense. In contrast, the present framework affords generic capabilities that can be shared by different distributed systems. Dynamic class loading, reflection, and other run-time capabilities of the Java language and JavaBeans component architecture enable the creation of a GUI for each new distributed computing system with a minimum of custom effort. By use of this framework, GUI components in control panels and menus can send commands to a particular distributed system with a minimum of system-specific code. The framework receives, decodes, processes, and displays telemetry data; custom telemetry data handling can be added for a particular system. The framework supports saving and later restoration of users configurations of control panels and telemetry displays with a minimum of effort in writing system-specific code. GUIs constructed within this framework can be deployed in any operating system with a Java run-time environment, without recompilation or code changes.

Eychaner, Glenn; Niessner, Albert

2005-01-01

249

Control problems in autonomous life support systems  

NASA Technical Reports Server (NTRS)

The problem of constructing life support systems which require little or no input of matter (food and gases) for long, or even indefinite, periods of time is addressed. Natural control in ecosystems, a control theory for ecosystems, and an approach to the design of an ALSS are addressed.

Colombano, S.

1982-01-01

250

Operating System Support for Mobile Agents  

Microsoft Academic Search

Abstract The TACOMA project is concerned with implementing operating system support for agents, processes that migrate through a network Two TACOMA prototypes have been completed; this paper outlines our experiences in building and using them A mechanism for exchanging electronic cash was explored, as well as agent - based schemes for scheduling and fault - tolerance

Dag Johansen; Fred B. Schneider; Robbert Renesse

1994-01-01

251

Operating system support for mobile agents  

Microsoft Academic Search

The TACOMA project is concerned with implementing operating system support for agents, processes that migrate through a network. Two TACOMA prototypes have been completed; this paper outlines our experiences in building and using them. A mechanism for exchanging electronic cash was explored, as well as agent-based schemes for scheduling and fault-tolerance

Dag Johansen; Robbert van Renesse; Fred B. Schneider

1995-01-01

252

Analysis Support for Space Systems Area.  

National Technical Information Service (NTIS)

This report documents, in summary, project work conducted during FY89-90 to enhanced analysis support of Space Systems testing and evaluation. The project was originally prepared and written in response to the AEDC CN45PW Preliminary Engineering Authoriza...

S. L. Steely

1991-01-01

253

Helicopter Aircrew Integrated Life Support System (HAILSS).  

National Technical Information Service (NTIS)

The Helicopter Aircrew Integrated Life Support System (HAILSS) program is a U.S. Navy led effort that began in April 1997 at the Naval Air Warfare Center Aircraft Division (NAWCAD) Patuxent River, MD. The main contractor is Gentex Corporation, Carbondale,...

P. Dolinar

2000-01-01

254

Environmental control and life support systems  

NASA Technical Reports Server (NTRS)

Viewgraphs on Environmental Control and Life Support Systems (ECLSS) for Space Station Freedom are presented. Topics covered include: crew generated wastes processing and reclamation; water reclamation - pre- and post-treatment; simplified waste water processing; improved trace contaminant removal; and real time microbial analysis.

Ray, Charles D.

1990-01-01

255

Supporting Classroom Activities with the BSUL System  

Microsoft Academic Search

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

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

2008-01-01

256

ROI Calculations for Electronic Performance Support Systems.  

ERIC Educational Resources Information Center

Discusses the importance of calculating the return on investment (ROI) for electronic performance support systems, beginning with the practical issues of identifying what will be measured and then assigning costs and benefits to each variable in monetary terms. Suggests the challenge is in defining and quantifying the real business benefits.…

Altalib, Hasan

2002-01-01

257

Electronic Performance Support Systems and Technological Literacy  

Microsoft Academic Search

Electronic performance support systems (EPSS) can provide alternative learning oppor- tunities to supplement traditional classroom or training strategies. Today's students may benefit from educational settings and strategies that they will use in the future. In using EPSS to nurture the development of technological litera- cy, workers and students can achieve higher level cognition skills while they perform tasks. Although there

George R. Maughan

258

Electronic Performance Support Systems and Technological Literacy  

ERIC Educational Resources Information Center

Electronic performance support systems (EPSS) can provide alternative learning opportunities to supplement traditional classroom or training strategies. Today's students may benefit from educational settings and strategies that they will use in the future. In using EPSS to nurture the development of technological literacy, workers and students can…

Maughan, George R.

2005-01-01

259

Life Lab Computer Support System's Manual.  

ERIC Educational Resources Information Center

Step-by-step procedures for utilizing the computer support system of Miami-Dade Community College's Life Lab program are described for the following categories: (1) Registration--Student's Lists and Labels, including three separate computer programs for current listings, next semester listings, and grade listings; (2) Competence and Resource…

Lippman, Beatrice D.; Walfish, Stephen

260

Decision Support Systems for Academic Administration.  

ERIC Educational Resources Information Center

The history and features of Decision Support Systems (DSS) and use of the approach by academic administrators are discussed. The objective of DSS is to involve the manager/decision maker in the decision-analysis process while simultaneously relieving that person of the burden of developing and performing detailed analysis. DSS represents a…

Moore, Laurence J.; Greenwood, Allen G.

1984-01-01

261

Cost Analysis of Life Support Systems.  

National Technical Information Service (NTIS)

A methodology was developed to predict realistic relative cost of Life Support Systems (LSS) and to define areas of major cost impacts in the development cycle. Emphasis was given to tailoring the cost data for usage by program planners and designers. The...

M. M. Yakut

1973-01-01

262

User-adapted clinical decision support systems  

Microsoft Academic Search

Clinical Decision Support Systems (CDSSs) have been one of the challenging real-world applications of artifi- cial intelligence techniques for decades. CDSSs built so far mainly deal with explicit medical knowledge, typically encoded into a knowledge base. The ratio- nale is that medical personal knowledge may be updated or time constraints limit physicians' ability to properly manage that knowledge. However, inter-user

Andrea Sboner; Riccardo Bellazzi; Paolo Carli; Mario Cristofolini

263

Methodology for creating intellectual decision support systems  

Microsoft Academic Search

The proposed methodology is designed to function in line with intellectual decision support system (DSS), which is used for managing of the production process. The methodology is designed to function in automatic mode, which uses highly specialized intelligent vocabulary interface. Function process of DSS includes training mode, where standard phonemes of speech characteristics are created for each feature vector. Where

E. Sliesoraityte; E. Fedorov; R. Dubakiene; A. Skorupskaite; V. Sliesoraitiene

2011-01-01

264

Maintenance and repair support system (MARSS)  

Microsoft Academic Search

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

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

1997-01-01

265

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...

266

Search Support in Data Management Systems  

Microsoft Academic Search

\\u000a In consequence of the change in the nature of data management systems the requirements for search support have shifted. In\\u000a the early days of data management systems, efficient access techniques and optimization strategies for exact match queries\\u000a had been the main focus. Most of the problems in this field are satisfactorily solved today and new types of applications\\u000a for data

Andreas Henrich

2005-01-01

267

System Support for Automated Profiling and Optimization  

Microsoft Academic Search

The Morph system provides a framework for automatic collection and management of profile information and application of profile-driven optimizations. In this paper, we focus on the operating system support that is required to collect and manage profile information on an end-user's workstation in an automatic, continuous, and transparent manner. Our implementation for a Digital Alpha machine running Digital UNIX 4.0

Xiaolan Zhang; Zheng Wang; Nicholas C. Gloy; J. Bradley Chen; Michael D. Smith

1997-01-01

268

System support for automatic profiling and optimization  

Microsoft Academic Search

The Morph system provides a framework for automatic collection and management of profile information and application of profile-driven optimizations. In this paper, we focus on the operating system support that is required to collect and manage profile information on an end-user’s workstation in an automatic, continuous, and transparent manner. Our implementation for a Digital Alpha machine running Digital UNIX 4.0

Xiaolan Zhang; Zheng Wang; Nicholas Gloy; J. Bradley Chen; Michael D. Smith

1997-01-01

269

Spatial Decision Support System for Watershed Management  

Microsoft Academic Search

A prototype spatial decision support system (SDSS) is presented for watershed management. The SDSS integrates landuse\\/landcover derived from the remote sensing data, real-time hydrological data, geographic information system, and a model-based subsystem for computing soil loss, land capability classification and engineering measures. A graphical user interface has been developed to allow effective use by decision makers. The model-based subsystem employs

K. H. V. Durga Rao; D. Satish Kumar

2004-01-01

270

Decision Support Systems for the Food Industry  

Microsoft Academic Search

\\u000a Applications of Decision Support Systems (DSSs) in the food industry, and in particular the seafood industry, are discussed.\\u000a The amount of data recorded in the food industry has increased greatly in the last decade, parallel to descending cost of\\u000a data recording through automatization and computer systems. The data can be used to fulfill the demands of consumers that\\u000a want information

Sigurjón Arason; Eyjólfur Ingi Ásgeirsson; Björn Margeirsson; Sveinn Margeirsson; Petter Olsen; Hlynur Stefánsson

271

Driver Assistance System for Passive Multi-Trailer Vehicles with Haptic Steering Limitations on the Leading Unit  

PubMed Central

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.

Morales, Jesus; Mandow, Anthony; Martinez, Jorge L.; Reina, Antonio J.; Garcia-Cerezo, Alfonso

2013-01-01

272

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

ERIC Educational Resources Information Center

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…

Ponessa, Joan M.

1987-01-01

273

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

PubMed

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

Levri, J A; Vaccari, D A

2004-01-01

274

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

NASA Technical Reports Server (NTRS)

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. c2004 COSPAR. Published by Elsevier Ltd. All rights reserved.

Levri, J. A.; Vaccari, D. A.

2004-01-01

275

In-flight medical support system  

NASA Technical Reports Server (NTRS)

The In-flight Medical Support System for Skylab was designed to provide the onboard Crew Physician or Scientist Pilot (or other crewmember if the Scientist Pilot was unable to act) with information adequate to make diagnostic assessment of those injuries or illnesses most likely to occur in the Skylab environment. The necessary diagnostic, therapeutic, and laboratory equipment needed to diagnose and to render first aid, resuscitative or supportive measures was stored in the Skylab Orbital Workshop. The resupply kit containing refrigerated laboratory and drug resupply items was stored in the Command Module.

Chassay, C.; Rose, S. A.

1977-01-01

276

Clinical decision support systems and antibiotic use  

Microsoft Academic Search

Aim  To review and appraise randomised controlled trials (RCT) and ‘before and after' studies published on clinical decision support\\u000a systems (CDSS) used to support the use of antibiotics.\\u000a \\u000a \\u000a \\u000a Methods  A literature search was carried out in October 2006 using MEDLINE including Medical Subject Heading (MeSH) terms (1966–2006),\\u000a EMBASE (Excerpta Medica, 1980–2006) and International Pharmaceutical Abstracts (IPA, 1970–2006) using the combinations of\\u000a the

Nada Atef Shebl; Bryony Dean Franklin; Nick Barber

2007-01-01

277

Web-Based Learning Support System  

NASA Astrophysics Data System (ADS)

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.

Fan, Lisa

278

1992 NASA Life Support Systems Analysis workshop  

NASA Technical Reports Server (NTRS)

The 1992 Life Support Systems Analysis Workshop was sponsored by NASA's Office of Aeronautics and Space Technology (OAST) to integrate the inputs from, disseminate information to, and foster communication among NASA, industry, and academic specialists. The workshop continued discussion and definition of key issues identified in the 1991 workshop, including: (1) modeling and experimental validation; (2) definition of systems analysis evaluation criteria; (3) integration of modeling at multiple levels; and (4) assessment of process control modeling approaches. Through both the 1991 and 1992 workshops, NASA has continued to seek input from industry and university chemical process modeling and analysis experts, and to introduce and apply new systems analysis approaches to life support systems. The workshop included technical presentations, discussions, and interactive planning, with sufficient time allocated for discussion of both technology status and technology development recommendations. Key personnel currently involved with life support technology developments from NASA, industry, and academia provided input to the status and priorities of current and future systems analysis methods and requirements.

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

1992-01-01

279

Space transportation systems supporting a lunar base  

NASA Technical Reports Server (NTRS)

Results are presented on preliminary design studies conducted by NASA and its contractors to define the transportation vehicle for the support of a human return to the moon mission. Attention is given to the transportation needs and requirements, the design solutions to meet these requirements, the rationale for the selection of the designs, and the ground/orbital support facilities for placing these systems into routine earth-moon transportation service. The reference system includes a partially reusable lunar transfer vehicle that operates between the earth and lunar orbits and a fully reusable lunar excursion vehicle that operates between the lunar orbit and the lunar surface. The system can deliver 27 metric tons of cargo to the lunar surface in an automated flight mode, and can transport a crew of four and deliver 15 tons of cargo in a piloted mode.

Priest, C. C.; Woodcock, Gordon

1990-01-01

280

Using Visualization in Cockpit Decision Support Systems  

NASA Technical Reports Server (NTRS)

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.

Aragon, Cecilia R.

2005-01-01

281

Supporting multiple control systems at Fermilab  

SciTech Connect

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.

Nicklaus, Dennis J.; /Fermilab

2009-10-01

282

Eye-tracking for detection of driver fatigue  

Microsoft Academic Search

In this paper, we describe a system that locates and tracks the eyes of a driver. The purpose of such a system is to perform detection of driver fatigue. By mounting a small camera inside the car, we can monitor the face of the driver and look for eye-movements which indicate that the driver is no longer in condition to

Martin Eriksson; N. P. Papanikotopoulos

1997-01-01

283

Modeling control systems for primary mirror supports  

NASA Astrophysics Data System (ADS)

The RGO is involved in a number of mirror support programs, ranging from new controllers for its existing Isaac Newton Group (ING) telescopes to new primary mirror supports for the UK Infra-red Telescope (UKIRT) and design proposals for the active support of the Gemini 8 m meniscus mirrors. This work has led to the identification or development of critical components such as load cells and control valves which have high precision and stability. Even so it is still necessary to develop servo controllers capable of minimizing the effects of non- linearity and maintaining stability, particularly in regard to the highly non-linear behavior of pneumatic supports. In order to predict the performance of mirror supports and compare differing control strategies, components and systems are modelled using Matlab(superscript R) and Simulink(superscript R). These models are presented, together with parameters derived experimentally, and results from recent laboratory tests are discussed. Specific applications are described and current status of the work at the time of submission is presented.

Fisher, Martin; Haque, Jaque; Wilkes, John D.; Amos, Clive S.; Steel, Darrin J.

1995-06-01

284

Design of an instrumented vehicle test bed for developing a human centered driver support system  

Microsoft Academic Search

We introduce a new type of intelligent vehicle test-bed that is enabling new research in the field. This new test-bed is designed to capture not just a portion of the vehicle surround, but rather the entire vehicle surround as well as the vehicle interior and vehicle state for extended periods of time. This is accomplished using multiple modalities of sensor

Joel C. McCall; Ofer Achler; Mohan M. Trivedi

2004-01-01

285

Advanced technologies to support earth orbiting systems  

NASA Technical Reports Server (NTRS)

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.

Rosen, Robert; Johnston, Gordon I.

1992-01-01

286

CUPTRSS: a Web-based Research Support System  

Microsoft Academic Search

Abstract: Research Support Systems (RSS) provide research organizationsand scientists with information and facility for improvingtheir research capacity, quality and productivity.Application of Web Intelligence technologies in developingthe Web-based Research Support System (WRSS) will makesuch systems more effective and convenient. This paper analyzesresearch support services and proposes a Web-basedintelligent system to provide integrated research support. Aprototype system, CUPTRSS, is...

H. Tang; Y. Wu; J. Yao; G. Wang; Y. Yao

2003-01-01

287

Decision support system for theater missile defense  

NASA Astrophysics Data System (ADS)

Military services require C4I systems that support a full spectrum of operations. This is specifically relevant to the theatre missile defense (TMD) mission planning and analysis community where there have been several recent concept changes; advancements in information technology, sensors, and weapons; and expansion in the diversity and capabilities of potential adversaries. To fully support campaign development and analysis in this new environment, there is a need for systems and tools that enhance understanding of adversarial behavior, assess potential threat capabilities and vulnerabilities, perform C4I system trades, and provide methods to identify macro-level novel or emergent combat tactics and behavior derived from simpler micro-level rules. Such systems must also be interactive, collaborative, and semi-autonomous, providing the INTEL analyst with the means for exploration and potential exploitation of novel enemy behavior patterns. To address these issues we have developed an Intelligent Threat Assessment Processor (ITAP) to provide prediction and interpretation of enemy courses of actions (eCOAs) for the TMD domain. This system uses a combination of genetic algorithm-based optimization in tandem with the spatial analysis and visualization capabilities of a commercial-off-the-shelf (COTS) geographic information system to generate and evaluate potential eCOAs.

Gonsalves, Paul; Burge, Janet; Popp, Ben

2003-08-01

288

A Distributed Education-Support PSE System  

Microsoft Academic Search

Network-based learning or e-Learning has been taking an important role in education as helpful education tools. However, it is difficult for teachers to retrieve education data from students or to obtain data from the student activities. Therefore, we have developed a problem solving environment (PSE) for the education and learning support: TSUNA-TASTE (Gallopoulos et al., 1991). The TSUNA-TASTE system collects

Takayuki Teramoto; Tadashi Okada; Shigeo Kawata

2007-01-01

289

The BRONCHOVID – Computer System Supporting Bronchoscopy Laboratory  

Microsoft Academic Search

\\u000a The bronchoscopy diagnostics consists of numerous tasks including but not limited to the treatment planning on the basis of\\u000a computed tomography, registration and analysis of endoscopic images during the inspection of the tracheo-bronchial tree and\\u000a procedure management. There is no comprehensive solution for a computer system supporting bronchoscopy laboratory. Since the\\u000a limited time of medical personnel, high volume and multimodal

Mariusz Duplaga; Jaros?aw Bu?at; Miko?aj Leszczuk; Miros?aw Socha; Piotr Romaniak; Pawe? Turcza

290

The controlled ecological life support system  

NASA Technical Reports Server (NTRS)

A Controlled Ecological Life Support System (CELSS) is needed which would convert waste water to usable water, waste products to food, and CO2 to O2 to permit long duration space flight. Algae, representing the autotroph, and mice, representing the heterotroph are placed together in a controlled, gas closed environment to examine the gas exchange rate of O2 and CO2. The eventual goal is to develop biological controls that can stabilize atmospheres.

Ko, K.

1985-01-01

291

Telescience Support Center Data System Software  

NASA Technical Reports Server (NTRS)

The Telescience Support Center (TSC) team has developed a databasedriven, increment-specific Data Require - ment Document (DRD) generation tool that automates much of the work required for generating and formatting the DRD. It creates a database to load the required changes to configure the TSC data system, thus eliminating a substantial amount of labor in database entry and formatting. The TSC database contains the TSC systems configuration, along with the experimental data, in which human physiological data must be de-commutated in real time. The data for each experiment also must be cataloged and archived for future retrieval. TSC software provides tools and resources for ground operation and data distribution to remote users consisting of PIs (principal investigators), bio-medical engineers, scientists, engineers, payload specialists, and computer scientists. Operations support is provided for computer systems access, detailed networking, and mathematical and computational problems of the International Space Station telemetry data. User training is provided for on-site staff and biomedical researchers and other remote personnel in the usage of the space-bound services via the Internet, which enables significant resource savings for the physical facility along with the time savings versus traveling to NASA sites. The software used in support of the TSC could easily be adapted to other Control Center applications. This would include not only other NASA payload monitoring facilities, but also other types of control activities, such as monitoring and control of the electric grid, chemical, or nuclear plant processes, air traffic control, and the like.

Rahman, Hasan

2010-01-01

292

Apollo portable life support system performance report  

NASA Technical Reports Server (NTRS)

The performance of the Apollo portable life support system (PLSS) on actual lunar missions is discussed. Both subjective comments by the crewmen and recorded telemetry data are evaluated although emphasis is on the telemetry data. Because the most important information yielded by the PLSS deals with determination of crewman metabolic rates, these data and their interpretation are explained in detail. System requirements are compared with actual performance, and the effect of performance margins on mission planning are described. Mission preparation testing is described to demonstrate how the mission readiness of the PLSS and the crewmen in verified, and to show how the PLSS and the crewmen are calibrated for mission evaluation.

Carson, M. A.

1972-01-01

293

Ground support system methodology and architecture  

NASA Technical Reports Server (NTRS)

A synergistic approach to systems test and support is explored. A building block architecture provides transportability of data, procedures, and knowledge. The synergistic approach also lowers cost and risk for life cycle of a program. The determination of design errors at the earliest phase reduces cost of vehicle ownership. Distributed scaleable architecture is based on industry standards maximizing transparency and maintainability. Autonomous control structure provides for distributed and segmented systems. Control of interfaces maximizes compatibility and reuse, reducing long term program cost. Intelligent data management architecture also reduces analysis time and cost (automation).

Schoen, P. D.

1991-01-01

294

Thermal control extravehicular life support system  

NASA Technical Reports Server (NTRS)

The results of a comprehensive study which defined an Extravehicular Life Support System Thermal Control System (TCS) are presented. The design of the prototype hardware and a detail summary of the prototype TCS fabrication and test effort are given. Several heat rejection subsystems, water management subsystems, humidity control subsystems, pressure control schemes and temperature control schemes were evaluated. Alternative integrated TCS systems were studied, and an optimum system was selected based on quantitative weighing of weight, volume, cost, complexity and other factors. The selected subsystem contains a sublimator for heat rejection, bubble expansion tank for water management, a slurper and rotary separator for humidity control, and a pump, a temperature control valve, a gas separator and a vehicle umbilical connector for water transport. The prototype hardware complied with program objectives.

1975-01-01

295

Power Management in Regenerative Life Support Systems  

NASA Technical Reports Server (NTRS)

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.

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

1999-01-01

296

Sequencing Support System: A robotic system for processing DNA samples  

Microsoft Academic Search

The development of very high-throughput and autonomous robotic workstations will be necessary to quickly and efficiently complete the sequencing of the 3 billion nucleotide base pairs that make up the human genome. The key to our sequencing scale-up efforts is the development of the Sequencing Support System. The Sequencing Support System is an integrated robotic workstation built around a 3-meter

S. Brignac

1997-01-01

297

Drunk Driver and Jail: Resource Materials. Volume 5.  

National Technical Information Service (NTIS)

Despite growing public and legislative support for jailing drunk drivers, not all agree that this sanction is appropriate for the drunk driving offense (DWI). Some people see other solutions to the traffic safety problem - better educated drivers, better ...

1986-01-01

298

Drunk Driver and Jail: Alternatives to Jail. Volume 2.  

National Technical Information Service (NTIS)

Despite growing public and legislative support for jailing drunk drivers, not all agree that this sanction is appropriate for the drunk driving offense (DWI). Some people see other solutions to the traffic safety problem - better educated drivers, better ...

1986-01-01

299

Environmental Control and Life Support System Mockup  

NASA Technical Reports Server (NTRS)

The Environmental Control and Life Support System (ECLSS) Group of the Flight Projects Directorate at the Marshall Space Flight Center in Huntsville, Alabama, is responsible for designing and building the life support systems that will provide the crew of the International Space Station (ISS) a comfortable environment in which to live and work. This photograph shows the mockup of the the ECLSS to be installed in the Node 3 module of the ISS. From left to right, shower rack, waste management rack, Water Recovery System (WRS) Rack #2, WRS Rack #1, and Oxygen Generation System (OGS) rack are shown. The WRS provides clean water through the reclamation of wastewaters and is comprised of a Urine Processor Assembly (UPA) and a Water Processor Assembly (WPA). The UPA accepts and processes pretreated crewmember urine to allow it to be processed along with other wastewaters in the WPA. The WPA removes free gas, organic, and nonorganic constituents before the water goes through a series of multifiltration beds for further purification. The OGS produces oxygen for breathing air for the crew and laboratory animals, as well as for replacing oxygen loss. The OGS is comprised of a cell stack, which electrolyzes (breaks apart the hydrogen and oxygen molecules) some of the clean water provided by the WRS, and the separators that remove the gases from the water after electrolysis.

2001-01-01

300

Repulsive force support system feasibility study  

NASA Technical Reports Server (NTRS)

A new concept in magnetic levitation and control is introduced for levitation above a plane. A set of five vertical solenoid magnets mounted flush below the plane supports and controls the model in five degrees of freedom. The compact system of levitation coils is contained in a space 2.4 m (96 in) diameter by 1 m (40 in) deep with the top of the levitation system 0.9 m (36 in) below the center line of the suspended model. The levitated model has a permanent magnet core held in position by the five parallel superconductive solenoids symmetrically located in a circle. The control and positioning system continuously corrects for model position in five dimensions using computer current pulses superimposed on the levitation coil base currents. The conceptual designs include: superconductive and Nd-Fe-B permanent magnet model cores and levitation solenoids of either superconductive, cryoresistive, or room temperature windings.

Boom, R. W.; Abdelsalam, M. K.; Eyssa, Y. M.; Mcintosh, G. E.

1987-01-01

301

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

NASA Technical Reports Server (NTRS)

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.

Macelroy, Robert D.; Smernoff, David T.

1987-01-01

302

Space transportation system biomedical operations support study  

NASA Technical Reports Server (NTRS)

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.

White, S. C.

1983-01-01

303

Science Nation: Tongue Driver  

NSDL National Science Digital Library

For the past four years, Maysam Ghovanloo has been working with a team at Georgia Institute of Technology to improve life for quadriplegics. With support from the National Science Foundation (NSF), they have devised a headset that responds to a magnet. Using a laptop, a wireless connection and navigation software, the headset is programmed to allow someone to steer a wheelchair by moving his tongue. Since the tongue driver could help control any number of devices like the TV or a computer, it could one day mean even more of the most precious commodity of all: independence.

304

Driver Preferences and Usability of Adjustable Distance Controls for an Adaptive Cruise Control (ACC) System. Human Factors Studies for the Evaluation, Analysis and Operational Assessment of an Intelligent Cruise Control System.  

National Technical Information Service (NTIS)

This report describes an investigation of driver preferences and usability of adjustable distance controls for an adaptive cruise control (ACC) system. ACC is conceived as an enhancement to conventional cruise control that would accommodate a slower movin...

C. Serafin

1996-01-01

305

Miniaturization of mechanical circulatory support systems.  

PubMed

Heart failure (HF) is increasing worldwide and represents a major burden in terms of health care resources and costs. Despite advances in medical care, prognosis with HF remains poor, especially in advanced stages. The large patient population with advanced HF and the limited number of donor organs stimulated the development of mechanical circulatory support (MCS) devices as a bridge to transplant and for destination therapy. However, MCS devices require a major operative intervention, cardiopulmonary bypass, and blood component exposure, which have been associated with significant adverse event rates, and long recovery periods. Miniaturization of MCS devices and the development of an efficient and reliable transcutaneous energy transfer system may provide the vehicle to overcome these limitations and usher in a new clinical paradigm in heart failure therapy by enabling less invasive beating heart surgical procedures for implantation, reduce cost, and improve patient outcomes and quality of life. Further, it is anticipated that future ventricular assist device technology will allow for a much wider application of the therapy in the treatment of heart failure including its use for myocardial recovery and as a platform for support for cell therapy in addition to permanent long-term support. PMID:22882443

Giridharan, Guruprasad A; Lee, Thomas J; Ising, Mickey; Sobieski, Michael A; Koenig, Steven C; Gray, Laman A; Slaughter, Mark S

2012-08-01

306

Driver Education Saves Gas.  

ERIC Educational Resources Information Center

The argument that driver education should be dropped because driver education cars use gas is shortsighted. High school driver education is an excellent vehicle for teaching concepts of energy conservation. A small investment in fuel now can result in major savings of gasoline over a student's lifetime. In addition good driver education courses…

American Automobile Association, Falls Church, VA. Traffic Engineering and Safety Dept.

307

[Progress of the laboratory supporting system of the ordering system].  

PubMed

University hospitals and large public hospitals introduced a first-generation ordering system, which mainly involved an integrated system developed by each institution. This type of system considerably improved the efficiency of hospital jobs, but clinically increased the burden of data-input handling of hospital staffs because the software used was unique to the respective unit. Later, the development of both network technology and package software for the ordering system allowed construction of an easy, low-cost and high-performance ordering system. Most of the recent ordering systems are a type of distributed system which is referred to as a client-server system. In this system the terminal was replaced by personal computer loaded with widely distributed Windows OS, resulting in better performance of multi-tasks. In February 1998, our hospital information system was changed from an intensive host-type to a client-server system, in which the laboratory ordering system was also reconstructed. The laboratory ordering system mainly utilizes EG Main for Windows, package software by Fujitsu Co. Ltd., and has reduced the handling of laboratory ordering jobs with Graphical User Interface and better construction of screen images. In addition to extra-laboratory tests, ordering into this system allowed the database of all the laboratory tests ordered in our hospital to be unified. The previous laboratory ordering system supported laboratory data, especially those of laboratory tests and samples conducted within the last 10 years, and the new system will also provide this function. The new laboratory ordering system is further expected to support reference image-data from physiological tests as well as to allow consultation concerning laboratory test data. These clinical job-supporting systems will likely lead to further progress of the total laboratory system. PMID:10518416

Okada, K; Seno, T; Harada, H

1999-09-01

308

Intelligent decision support system for flexible manufacturing system design  

Microsoft Academic Search

The aim of this paper is to develop a new methodology of analysis and evaluation of Flexible Manufacturing System (FMS) design configurations. It examines the use of an integrated, systemic, global and user oriented approach for the complex problem of selecting among several configuration alternatives the most suitable for a specific case. The methodology is implemented using the Decision Support

Denis Borenstein

1998-01-01

309

Before the Controller: A Multiple Target Tracking Routine for Driver Assistance Systems Vor dem Regler: Ein Verfahren zur Mehrfach-Objektverfolgung f¨ ur Fahrerassistenzsysteme  

Microsoft Academic Search

This paper presents a probabilistic approach to multiple target tracking with applications to driver assistance systems. The authors develop the probabilistic theory behind two rou- tines that together handle uncertain target motion and uncertain measurement origin. The first algorithm incorporates multiple target motion models and acts like a self-adjusting, variable-bandwidth filter to accurately track a single target during all possible

Derek Caveney; Dirk Dickmanns; J. Karl

310

Effectiveness of a Program Using a Vehicle Tracking System, Incentives, and Disincentives to Reduce the Speeding Behavior of Drivers with ADHD  

ERIC Educational Resources Information Center

Objective: In this article, the authors investigated the effectiveness of a behavior modification program using global positioning system (GPS) vehicle tracking devices with contingency incentives and disincentives to reduce the speeding behavior of drivers with ADHD. Method: Using an AB multiple-baseline design, six participants drove a 5-mile…

Markham, Paula T.; Porter, Bryan E.; Ball, J. D.

2013-01-01

311

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

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

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

2005-01-01

312

Decision Support System for hydrological extremes  

NASA Astrophysics Data System (ADS)

The study of the tail behaviour of extreme event distributions is important in several applied statistical fields such as hydrology, finance, and telecommunications. For example in hydrology, it is important to estimate adequately extreme quantiles in order to build and manage safe and effective hydraulic structures (dams, for example). Two main classes of distributions are used in hydrological frequency analysis: the class D of sub-exponential (Gamma (G2), Gumbel, Halphen type A (HA), Halphen type B (HB)…) and the class C of regularly varying distributions (Fréchet, Log-Pearson, Halphen type IB …) with a heavier tail. A Decision Support System (DSS) based on the characterization of the right tail, corresponding low probability of excedence p (high return period T=1/p, in hydrology), has been developed. The DSS allows discriminating between the class C and D and in its last version, a new prior step is added in order to test Lognormality. Indeed, the right tail of the Lognormal distribution (LN) is between the tails of distributions of the classes C and D; studies indicated difficulty with the discrimination between LN and distributions of the classes C and D. Other tools are useful to discriminate between distributions of the same class D (HA, HB and G2; see other communication). Some numerical illustrations show that, the DSS allows discriminating between Lognormal, regularly varying and sub-exponential distributions; and lead to coherent conclusions. Key words: Regularly varying distributions, subexponential distributions, Decision Support System, Heavy tailed distribution, Extreme value theory

Bobée, Bernard; El Adlouni, Salaheddine

2014-05-01

313

Hollow fiber membrane systems for advanced life support systems  

NASA Technical Reports Server (NTRS)

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.

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

1976-01-01

314

Infrastructure to Support Hydrologic Research: Information Systems  

NASA Astrophysics Data System (ADS)

Hydrologic Sciences are inherently interdisciplinary. Consequently, a myriad state variables are of interest to hydrologists. Hydrologic processes transcend many spatial and temporal scales, and their measurements reflect a variety of scales of support. The global water cycle is continuously modified by human activity through changes in land use, alteration of rivers, irrigation and groundwater pumping and through a modification of atmospheric composition. Since water is a solvent and a medium of transport, the water cycle fundamentally influences other material and energy cycles. This metaphor extends to the function that a hydrologic research information system needs to provide, to facilitate discovery in earth systems science, and to improve our capability to manage resources and hazards in a sustainable manner. At present, we have a variety of sources that provide data useful for hydrologic analyses, that range from massive remote sensed data sets, to sparsely sampled historical and paleo data. Consequently, the first objective of the Hydrologic Information Systems (HIS) group is to design a data services system that makes these data accessible in a uniform and useful way for specific, prioritized research goals. The design will include protocols for archiving and disseminating data from the Long Term Hydrologic Observatories (LTHOs), and comprehensive modeling experiments. Hydrology has a rich tradition of mathematical and statistical modeling of processes. However, given limited data and access to it, and a narrow focus that has not exploited connections to climatic and ecologic processes (among others), there have been only a few forays into diagnostic analyses of hydrologic fields, to identify and evaluate spatial and process teleconnections and an appropriate reduced space for modeling and understanding systems. The HIS initiative consequently proposes an investment in research and the provision of toolboxes to facilitate such analyses using the data systems developed, with the goal of addressing specific hydrologic puzzles. This initiative will also support the development of methods to improve our ability to formulate conceptual and operational models for estimating hydrologic fluxes at ungaged and poorly gaged locations and time periods. Operational modeling of large scale hydrologic systems coupled to other earth systems is just now coming into vogue, and will be aggressively supported by the data initiatives at the LTHOs, and by the investment in new Measurement Technology. While we recognize that new ways of problem formulation and reduction are crucial to progress in modeling such systems, methods of "data assimilation" hold the promise for correcting the trajectories of existing models and for checking key modeling assumptions. Hence, we advance this component as part of an information system (defined through data, access and visualization tools, and numerical and statistical modeling tools) that may provide immediate improvements in hydrologic forecasting and applications. Finally, an HIS facility that embodies the components enumerated above, provides an excellent venue for the training of scientists and as a meeting place for scientists to plan new experiments, test hypothesis with data, explore improvements in models or visualization tools, and to generate new research ideas. This "think tank" component will add to the vitality of the field of hydrology as a scientific discipline.

Lall, U.; Duffy, C j

2001-12-01

315

Knowledge-based systems and NASA's software support environment  

NASA Technical Reports Server (NTRS)

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.

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

1990-01-01

316

Providing information system support for simulations using the Cassandra + system  

Microsoft Academic Search

A Query-Driven Simulation (QDS) system Cassandra+ is described that allows end-users to ask temporal queries about outcomes of running simulation models written in various simulation languages. The architecture of Cassandra+, its query language SimQL, and the implementation of the system are described. It is argued that Cassandra+ provides a more effective information systems (IS) support for simulations than the more

P. Balasubramanian; Alexander Tuzhilin

1997-01-01

317

Integrated rural energy decision support system  

NASA Astrophysics Data System (ADS)

Rural areas in developing countries face severe energy problems. At some places, this problem is addressed by ad-hoc policies, which in many instances lack continuity. The lack of both energy data and the capability to analyse energy options for a given planning area have been the primary causes for misrepresentation of rural energy problems. In this research, a systematic approach for analysing energy situations using a decision support system is proposed. The approach combines a geographical information system and a multiobjective programming method. A geographical information system helps in database management and multiobjective programming helps in the analysis of conflicting objectives such as cost, efficiency, environment, and equity. The proposed system is applied to a rural region and two cases are studied. Ten energy options are discussed and resource allocations are shown for a few of these options. By knowing the resource allocation and evaluating their implementation possibility, the decision makers are expected to be in a position to choose a better option for the planning area. The results obtained for the study area indicate that the emphasis should be put on the distribution of efficient fuelwood stoves and exploitation of local energy resources. Any deficit in energy supply thereafter should be met with imported energy sources such as grid electricity and kerosene. The result also indicate that if the proposed energy allocation could be implemented, then it can provide rural employment and provides an opportunity to encourage interfuel substitution in the planning area.

Pokharel, Shaligram

318

Maintenance and repair support system (MARSS)  

NASA Astrophysics Data System (ADS)

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.

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

1997-06-01

319

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

PubMed Central

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.

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

2010-01-01

320

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

PubMed

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

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

2010-07-01

321

45 CFR 302.85 - Mandatory computerized support enforcement system.  

Code of Federal Regulations, 2013 CFR

...2012-10-01 true Mandatory computerized support enforcement system. 302.85 Section 302.85 Public Welfare OFFICE OF CHILD SUPPORT ENFORCEMENT (CHILD SUPPORT ENFORCEMENT PROGRAM), ADMINISTRATION FOR CHILDREN...

2013-10-01

322

45 CFR 307.5 - Mandatory computerized support enforcement systems.  

Code of Federal Regulations, 2013 CFR

...2012-10-01 true Mandatory computerized support enforcement systems. 307.5 Section 307.5 Public Welfare OFFICE OF CHILD SUPPORT ENFORCEMENT (CHILD SUPPORT ENFORCEMENT PROGRAM), ADMINISTRATION FOR CHILDREN...

2013-10-01

323

Potential roles for performance support tools within library systems  

Microsoft Academic Search

Purpose – The aim of the research was to design and evaluate a prototype electronic performance support system (EPSS) for libraries. Design\\/methodology\\/approach – Based on the theory of performance support and usability problems identified in the use of academic libraries, a performance support system for using the Dewey Decimal Coding system was designed, implemented and evaluated. The system embedded two

Paul Van Schaik; Philip Barker; Oladeji Famakinwa

2006-01-01

324

Composting in advanced life support systems  

NASA Technical Reports Server (NTRS)

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.

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

1998-01-01

325

Suspension system for gimbal supported scanning payloads  

NASA Astrophysics Data System (ADS)

Gimballed scanning devices or instruments are the subject of this invention. Scanning is an important aspect of space science. To achieve a scan pattern some means must be provided which impart to the payload an oscillatory motion. Various forms of machines have been employed for controllably conferring on scanning instruments predetermined scan patterns. They include control moment gyroscopes, reaction wheels, torque motors, reaction control systems, and the like. But rotating unbalanced mass (RUM) devices are a new and efficient way to generate scans in gimballed payloads. RUM devices are superior to previous scanning apparatus, but they require power consuming and frequently complex auxiliary control systems to position and reposition the particular scan pattern relative to a target or a number of targets. Herein the control system is simplified. The most frequently employed method for achieving the various scan patterns is to gimbal the scanning device. Gimbals are suspended in such a way that they can be activated to generate the scan pattern. The suspension means described is for payloads supported in gimbals wherein the payload rotation is restricted by a flex pivot so that the payload oscillates, thereby moving in a scan pattern.

Polites, Michael E.

1995-03-01

326

Suspension system for gimbal supported scanning payloads  

NASA Astrophysics Data System (ADS)

Gimballed scanning devices or instruments are the subject of this invention. Scanning is an important aspect of space science. To achieve a scan pattern some means must be provided which impart to the payload an oscillatory motion. Various forms of machines have been employed for controllably conferring on scanning instruments predetermined scan patterns. They include control moment gyroscopes, reaction wheels, torque motors, reaction control systems, and the like. But rotating unbalanced mass (RUM) devices are a new and efficient way to generate scans in gimballed payloads. RUM devices are superior to previous scanning apparatus, but they require power consuming and frequently complex auxiliary control systems to position and reposition the particular scan pattern relative to a target or a number of targets. Herein the control system is simplified. The most frequently employed method for achieving the various scan patterns is to gimbal the scanning device. Gimbals are suspended in such a way that they can be activated to generate the scan pattern. The suspension means described is for payloads supported in gimbals wherein the payload rotation is restricted by a flex pivot so that the payload oscillates, thereby moving in a scan pattern.

Polites, Michael E.

1993-09-01

327

An agent-based framework for building decision support systems  

Microsoft Academic Search

This paper proposes a framework for building decision support systems using software agent technology to support organizations characterized by physically distributed, enterprise-wide, heterogeneous information systems. Intelligent agents have offered tremendous potential in supporting well-defined tasks such as information filtering, data mining and data conversion. However, the use of intelligent agents to support decisions has not been explored and merits serious

Tung Bui; Jintae Lee

1999-01-01

328

Launch Processing System - A system to support the Space Shuttle  

NASA Technical Reports Server (NTRS)

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.

Paul, H. C.

1975-01-01

329

Understanding bus rapid transit route ridership drivers: An empirical study of Australian BRT systems  

Microsoft Academic Search

Bus Rapid Transit (BRT) systems are an increasingly popular public transport option internationally. They provide rail-like quality for bus services for a fraction of the cost of fixed rail. Many claims of high and increasing ridership have resulted from BRT system development; however, it is unclear exactly which aspects of BRT system design drive this. This paper explores whether BRT

Graham Currie; Alexa Delbosc

2011-01-01

330

Driver sleepiness and individual differences in preferences for countermeasures.  

PubMed

The aim of the present national questionnaire study was to relate the use of sleepiness countermeasures among drivers to possible explanatory factors such as age, sex, education, professional driving, being a shift worker, having experience of sleepy driving, sleep-related crashes, problems with sleep and sleepiness in general and sleep length during working days. Also the attitude to countermeasures related to information or driver support system was studied. A random sample of 3041 persons was drawn from the national register of vehicle owners. The response rate was 62%. The most common countermeasures were to stop to take a walk (54%), turn on the radio/stereo (52%), open a window (47%), drink coffee (45%) and to ask passengers to engage in conversation (35%). Logistic regression analysis showed that counteracting sleepiness with a nap (a presumably efficient method) was practiced by those with experience of sleep-related crashes or of driving during severe sleepiness, as well as by professional drivers, males and drivers aged 46-64 years. The most endorsed means of information to the driver about sleepiness was in-car monitoring of driving performance providing drivers with information on bad or unsafe driving. This preference was related to experience of sleepy driving, not being a professional driver and male gender. Four clusters of behaviours were identified: alertness-enhancing activity while driving (A), stopping the car (S), taking a nap (N) and ingesting coffee or other sources of caffeine (C) (energy drinks, caffeine tablets). The participants were grouped according to their use of any of the four categories of countermeasures. The most common cluster was those who used activity, as well as stopping and drinking caffeine. PMID:18275551

Anund, Anna; Kecklund, Göran; Peters, Björn; Akerstedt, Torbjörn

2008-03-01

331

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)

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.

Moore, J. A.

1976-01-01

332

Multi-parametric analysis of sensory data collected from automotive drivers for building a safety-critical wearable computing system  

Microsoft Academic Search

We present a methodology and an off-line analysis of data collected from several body-mounted sensors for automotive drivers during multiple fixed-route, segmented driving on real roads. This analysis was used for a range of preliminary processes including those related but not limited to stress detection. It also attempts to illustrate cases of several drivers for whom the real-time data acquisition

R. Ranjan Singh; R. Banerjee

2010-01-01

333

Disentangling the drivers of soil organic matter decay as temperature changes by integrating reductionist systems with soil data  

NASA Astrophysics Data System (ADS)

Accurately predicting decomposition rates of soil organic matter (SOM) as temperature increases is critical for projecting future atmospheric [CO2]. SOM decay is catalyzed by exo-enzymes (EEs) produced by microorganisms and secreted into the soil. Microbes take up liberated resources for metabolic processes and release diverse compounds, including CO2. Historically, investigations of the influence of temperature on heterotrophic CO2 release have focused on CO2 response, including its isotopic composition; recent studies also assess EE activity and microbial community composition. However, it is difficult to generalize from such studies how temperature will influence SOM decay and CO2 release because the responses of EEs, microbial resource demand, biomass production rates, and respiration rates are not parsed. Quantifying the individual temperature responses of all of these processes in unaltered soil is not tractable. However, we can use experimentally simplified systems to quantify fundamental biochemical and physiological responses to temperature and compare these results to those from environmental samples. For example, we can quantify the degree to which EE kinetics in isolation induce changes in availability of microbially assimilable resources as temperature changes and calculate associated changes in relative availability of assimilable carbon and nitrogen (C:N flow ratio), in isolation from altered microbial resource demand or uptake. We also can assess EE activity and CO2 release at different temperatures in diverse soils, integrating temperature responses of EE kinetics and microbial communities. Discrepancies in the temperature responses between real soils and isolated enzyme-substrate reactions can reveal how adaptive responses of microbial communities influence the temperature responses of soil heterotrophic CO2 release. We have shown in purified reactions that C:N flow ratios increase with temperature at pH 4.5, but decline between pH 6.5 and 8.5. If soil microbes exhibited no change in resource demand or C allocation with altered C:N flow ratios and if relative C availability was tightly coupled to respiration, we would expect variation in C:N flow ratios predicted by purified solutions to be expressed in analogous, relative patterns of C mineralization. However, the positive response of heterotrophic CO2 release to similar temperature increases in five strongly acidic forest soils (three boreal, one cool temperate, and one warm temperate) was much smaller than in a neutral-pH grassland or an alkaline desert, the opposite of what we might predict if C:N flow ratio was the only driver of respiratory responses to temperature. We also observe distinct d13C of CO2 respired from pure cultures in which substrate composition and availability are strictly controlled as temperature changes, reflecting fundamental shifts in C flux through metabolic pathways. These changes in d13C-CO2 with warming are greater than those observed in soils. Combined, these CO2 and d13C-CO2 data suggest that soil microbial adaptation to temperature is a meaningful driver of heterotrophic respiratory responses to temperature. We highlight the utility of reductionist experimental systems for characterizing fundamental SOM decay rates and changes in microbial C metabolism at different temperatures, and integrating them with analogous data derived from soils to quantify the role of microbial adaptation as a driver of SOM decay.

Billings, Sharon; Ballantyne, Ford, IV; Min, Kyungjin; Lehmeier, Christoph; Ziegler, Susan

2014-05-01

334

A multimedia electronic performance support system for automatic test equipment operation and training support  

Microsoft Academic Search

This paper briefly describes a prototype multimedia system designed for use by Korean semiconductor industry automatic test equipment (ATE) operators and vendor repair personnel. The purpose of the system is to improve user productivity by providing system information for operations support and just-in-time training. Identified are three main system features: multimedia instruction and training support, hypermedia functionality, and direct interface

Sangyong Lee; James M. Ragusa

1997-01-01

335

Automated Quality of Care Evaluation Support System (AQCESS) Distribution Kit.  

National Technical Information Service (NTIS)

The Automated Quality of Care Evaluation Support System (AQCESS) is a microcomputer based, integrated, terminal oriented, interactive, on-line computer system designed to support Patient Administration, Clinical Records and Quality of Care Evaluation func...

M. D. Rodman

1987-01-01

336

A welfare facility resident care support system.  

PubMed

We have developed a new care support system to monitor the overall health of welfare facility residents who need constant care. The system is designed with wireless sensors, wireless repeaters and a host computer. The wireless sensor, which consists of a piezoelectric sensor, a 2 axis accelerometer, a microcontroller and a low power 303 MHz ASH transceiver. It records respiration, activity and indicators of posture and behavior for 24 hours. These data are transmitted to the wireless repeater by the transceiver. The wireless repeaters, which are installed throughout the welfare facility, send data, including the repeater's ID, to the host computer. The ID is used to detect the resident's location in the welfare facility. The host computer stores the data, which can be used to analyze the resident's overall health condition. When the resident is in an emergency situation, such as falling or in an inactive state for more that the allotted time, the host computer automatically alerts the situation to the care staff by an alarm sound and also by mobile phone. PMID:15134005

Maki, Hiromichi; Yonczawa, Yoshiharu; Ogawa, Hidekuni; Sato, Haruhiko; Hahn, Allen W; Caldwell, W Morton

2004-01-01

337

Optimization of life support systems and their systems reliability  

NASA Technical Reports Server (NTRS)

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.

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

1971-01-01

338

The Controlled Ecological Life Support Systems (CELSS) research program  

NASA Technical Reports Server (NTRS)

The goal of the Controlled Ecological Life Support Systems (CELSS) program is to develop systems composed of biological, chemical and physical components for purposes of human life support in space. The research activities supported by the program are diverse, but are focused on the growth of higher plants, food and waste processing, and systems control. Current concepts associated with the development and operation of a bioregenerative life support system will be discussed in this paper.

Macelroy, Robert D.

1990-01-01

339

Decision support systems in diuresis renography.  

PubMed

The volume of diagnostic imaging studies performed in the United States is rapidly increasing resulting from an increase in the number of patients as well as an increase in the volume of studies per patient. Concurrently, the number and complexity of images in each patient data set are also increasing. Nuclear medicine physicians and radiologists are required to master an ever-expanding knowledge base whereas the hours available to master this knowledge base and apply it to specific tasks are steadily shrinking. The convergence of an expanding knowledge base and escalating time constraints increases the likelihood of physician errors. The problem is particularly acute for low-volume studies such as MAG3 diuresis renography where many imagers may have had limited training or experience. To address this problem, renal decision support systems (DSS) are being developed to assist physicians evaluate suspected obstruction in patients referred for diuresis renography. Categories of DSS include neural networks, case-based reasoning, expert systems and statistical systems; RENEX and CART are examples of renal DSS currently in development. RENEX (renal expert) uses a set of rules obtained from human experts to analyze a knowledge base of expanded quantitative parameters obtained from diuresis MAG3 scintigraphy whereas CART (classification and regression tree analysis) is a statistical method that grows and prunes a decision tree based on an analysis of these quantitative parameters in a training data set. RENEX can be queried to provide the reasons for its conclusions. Initial data show that the interpretations provided by RENEX and CART are comparable to the interpretations of a panel of experts blinded to clinical information. This project should serve as a benchmark for the scientific comparison and collaboration of these 2 fields of medical decision-making. Moreover, we anticipate that these DSS will better define the essential interpretative criteria, foster standardized interpretation, teach trainees to better interpret renal scans, enhance diagnostic accuracy and provide a methodology applicable to other diagnostic problems in radiology and medicine. PMID:18096465

Taylor, Andrew; Manatunga, Amita; Garcia, Ernest V

2008-01-01

340

Decision Support Systems in Diuresis Renography  

PubMed Central

The volume of diagnostic imaging studies performed in the United States is rapidly increasing resulting from an increase in the number of patients as well as an increase in the volume of studies per patient. Concurrently, the number and complexity of images in each patient data set are also increasing. Nuclear medicine physicians and radiologists are required to master an ever-expanding knowledge base whereas the hours available to master this knowledge base and apply it to specific tasks are steadily shrinking. The convergence of an expanding knowledge base and escalating time constraints increases the likelihood of physician errors. The problem is particularly acute for low-volume studies such as MAG3 diuresis renography where many imagers may have had limited training or experience. To address this problem, renal decision support systems (DSS) are being developed to assist physicians evaluate suspected obstruction in patients referred for diuresis renography. Categories of DSS include neural networks, case-based reasoning, expert systems and statistical systems; RENEX and CART are examples of renal DSS currently in development. RENEX (renal expert) uses a set of rules obtained from human experts to analyze a knowledge base of expanded quantitative parameters obtained from diuresis MAG3 scintigraphy whereas CART (classification and regression tree analysis) is a statistical method that grows and prunes a decision tree based on an analysis of these quantitative parameters in a training data set. RENEX can be queried to provide the reasons for its conclusions. Initial data show that the interpretations provided by RENEX and CART are comparable to the interpretations of a panel of experts blinded to clinical information. This project should serve as a benchmark for the scientific comparison and collaboration of these 2 fields of medical decision-making. Moreover, we anticipate that these DSS will better define the essential interpretative criteria, foster standardized interpretation, teach trainees to better interpret renal scans, enhance diagnostic accuracy and provide a methodology applicable to other diagnostic problems in radiology and medicine.

Taylor, Andrew; Manatunga, Amita; Garcia, Ernest V.

2013-01-01

341

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

Federal Register 2010, 2011, 2012, 2013

...License Information System State Procedures Manual, Release...edition of the American Association of Motor Vehicle Administrators...Information System (CDLIS) State Procedures Manual (the...uniform practices among the States can only be ensured by...Department of Transportation Library and the National...

2011-11-04

342

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

Microsoft Academic Search

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

Z. Liu; G. Payre; P. Bourassa

1996-01-01

343

Decision support system design and development issues: the HRSOS experience  

Microsoft Academic Search

To better quarter personnel, the Department of Defense (DOD) has entered into experimental joint ventures with private developers to construct attractive housing projects on military installation property. A decision support system, called the Housing Revitalization Support Office System (HRSOS), has been developed to support the financial analysis of the joint ventures. By improving the analysis, this system is expected to

Guisseppi A. Forgionne

2000-01-01

344

Building Decision Support Systems in Discretionary Legal Domains  

Microsoft Academic Search

The construction of intelligent legal decision support systems in discretionary domains will enhance consistent decision-making leading to increased confidence in the justice system and provide support for alternative dispute resolution. To build such intelligent decision support systems, we classify discretionary legal domains into four (not necessarily distinct) categories. Domains in which the number of outputs is limited are shown to

John Zeleznikow

2000-01-01

345

The application of data warehouse in decision support system  

Microsoft Academic Search

The author of this paper expounds the decision supporting system in light with the data warehouse technology, and analyzes profoundly the systematic structure and disadvantages of traditional decision supporting system. On the basis, the author of this paper discusses the importance of applying data excavation technology to the decision supporting system with examples that can provide new measures to cultivating

Guo-xiang Liu; Zhi-heng Qi

2012-01-01

346

A Framework for Web-based Research Support Systems  

Microsoft Academic Search

The objective of research support systems (RSS) is to support and improve research, which may be viewed as a counterpart of decision support systems (DSS) for scientists. Web-based RSS (WRSS) assist scientists in the research process on the Web platform. WRSS are based on the assembling, integration, and adaptation of existing computer technology and information systems for the purpose of

Yiyu Yao

2003-01-01

347

Teen Drivers  

MedlinePLUS

... You Can Use Podcasts Facebook Buttons & Badges More Social & New Media References Centers for Disease Control and Prevention. Web-based Injury Statistics Query and Reporting System (WISQARS) [ ...

348

Dynamic Study for Driver-motorcycle-road System with Rigid-flexible Coupling  

Microsoft Academic Search

Currently,motorcycle system's paper dynamic characteristics research usually adopts multi-rigid-body dynamic method,and without consider about flexibility of the motorcycle frame,engine and road motivation,which lead the analysis result has large gap with the reality. A new dynamic model of motorcycle is established by taking into account the flexibility of the motorcycle frame. Dynamic characteristics of the established system are studied through simulating

ZHU Caichao; TANG Qian; HUANG Zehao

349

A PowerPC-based control system for the Read-Out-Driver module of the ATLAS IBL  

NASA Astrophysics Data System (ADS)

The ATLAS experiment at LHC planned to upgrade the existing Pixel Detector with the insertion of an innermost silicon layer, called Insertable B-layer (IBL). A new front-end ASIC has been foreseen (named FE-I4) and it will be read out with improved off-detector electronics. In particular, the new Read-Out Driver card (ROD) is a VME-based board designed to process a four-fold data throughput. Moreover, the ROD hosts the electronics devoted to control operations whose main tasks are providing setup busses to access configuration registers on several FPGAs, receiving configuration data from external PCs, managing triggers and running calibration procedures. In parallel with a backward-compatible solution with a Digital Signal Processor (DSP), a new ROD control circuitry with a PowerPC embedded into an FPGA has been implemented. In this paper the status of the PowerPC-based control system will be outlined with major focus on firmware and software development strategies.

Balbi, G.; Bruni, G.; Bruschi, M.; D'Antone, I.; Dopke, J.; Falchieri, D.; Flick, T.; Gabrielli, A.; Grosse-Knetter, J.; Heim, T.; Joseph, J.; Krieger, N.; Kugel, A.; Morettini, P.; Neumann, M.; Polini, A.; Schroer, N.; Rizzi, M.; Travaglini, R.; Zannoli, S.; Zoccoli, A.

2012-02-01

350

A Support Database System for Integrated System Health Management (ISHM)  

NASA Technical Reports Server (NTRS)

The development, deployment, operation and maintenance of Integrated Systems Health Management (ISHM) applications require the storage and processing of tremendous amounts of low-level data. This data must be shared in a secure and cost-effective manner between developers, and processed within several heterogeneous architectures. Modern database technology allows this data to be organized efficiently, while ensuring the integrity and security of the data. The extensibility and interoperability of the current database technologies also allows for the creation of an associated support database system. A support database system provides additional capabilities by building applications on top of the database structure. These applications can then be used to support the various technologies in an ISHM architecture. This presentation and paper propose a detailed structure and application description for a support database system, called the Health Assessment Database System (HADS). The HADS provides a shared context for organizing and distributing data as well as a definition of the applications that provide the required data-driven support to ISHM. This approach provides another powerful tool for ISHM developers, while also enabling novel functionality. This functionality includes: automated firmware updating and deployment, algorithm development assistance and electronic datasheet generation. The architecture for the HADS has been developed as part of the ISHM toolset at Stennis Space Center for rocket engine testing. A detailed implementation has begun for the Methane Thruster Testbed Project (MTTP) in order to assist in developing health assessment and anomaly detection algorithms for ISHM. The structure of this implementation is shown in Figure 1. The database structure consists of three primary components: the system hierarchy model, the historical data archive and the firmware codebase. The system hierarchy model replicates the physical relationships between system elements to provide the logical context for the database. The historical data archive provides a common repository for sensor data that can be shared between developers and applications. The firmware codebase is used by the developer to organize the intelligent element firmware into atomic units which can be assembled into complete firmware for specific elements.

Schmalzel, John; Figueroa, Jorge F.; Turowski, Mark; Morris, John

2007-01-01

351

IMM-DSS: intelligent multimedia decision support systems  

Microsoft Academic Search

This paper presents a new type of decision support system (DSS), the intelligent multimedia decision support system (IMM-DSS). This system is both a DSS and a DSS generator or development tool. It integrates, with synergy, different available computer-based tools. Expert systems (ES) and hypermedia (HM) technologies. Through this synergetic integration the system improves the problem analysis, problem solving and decision

Ileana Costea

1993-01-01

352

Resilience and challenges of marine social-ecological systems under complex and interconnected drivers.  

PubMed

In this paper, we summarize the contributions made by an interdisciplinary group of researchers from different disciplines (biology, ecology, economics, and law) that deal with key dimensions of marine social-ecological systems. Particularly, the local and global seafood provision; the feasibility and management of marine protected areas; the use of marine ecosystem services; the institutional dimension in European fisheries, and the affordable models for providing scientific advice to small-scale fisheries. This Special Issue presents key findings from selected case studies around the world available to educators, policy makers, and the technical community. Together, these papers show that a range of diverse ecological, economic, social, and institutional components often mutually interact at spatial and temporal scales, which evidence that managing marine social-ecological systems needs a continuous adaptability to navigate into new governance systems. PMID:24213990

Villasante, Sebastián; Macho, Gonzalo; Antelo, Manel; Rodríguez-González, David; Kaiser, Michel J

2013-12-01

353

Driver scheduling problem modelling  

Microsoft Academic Search

The Drivers Scheduling Problem (DSP) consists of selecting a set of duties for vehicle drivers, for example buses, trains, plane or boat drivers or pilots, for the transportation of passengers or goods. This is a complex problem because it involves several constraints related to labour and company rules and can also present different evaluation criteria and objectives. Being able to

Rita Portugal; Helena Ramalhinho-Lourenço; José P. Paixao

2006-01-01

354

76 FR 19023 - Commercial Driver's License Information System State Procedures Manual, Release 5.2.0  

Federal Register 2010, 2011, 2012, 2013

...version of the American Association of Motor Vehicle Administrators...Information System (CDLIS) State Procedures Manual (the...uniform practices among the States can only be ensured by...reference the latest CDLIS State Procedures Manual (Release...Department of Transportation Library and the National...

2011-04-06

355

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

ERIC Educational Resources Information Center

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…

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

2012-01-01

356

Towards Institution-Wide Online Teaching and Learning Systems: Trends, Drivers and Issues.  

ERIC Educational Resources Information Center

Universities worldwide are consolidating and enhancing their commitments to various models of e-learning. These activities are leading to the adoption of corporate-wide e-learning systems and accompanying changes in structures, processes, and infrastructure requirements. The professed ideal is to identify narrowly defined corporate instructional…

Holt, Dale; Rice, Mary; Smissen, Ian; Bowly, Judy

357

45 CFR 307.5 - Mandatory computerized support enforcement systems.  

Code of Federal Regulations, 2010 CFR

...interface with the base system; (3) Provide...the alternative system configuration...or caused by the performance of the system; or (ii) Specify...of computerized support enforcement systems...software, and electronic linkages with...

2010-10-01

358

45 CFR 307.5 - Mandatory computerized support enforcement systems.  

Code of Federal Regulations, 2010 CFR

...interface with the base system; (3) Provide...the alternative system configuration...or caused by the performance of the system; or (ii) Specify...of computerized support enforcement systems...software, and electronic linkages with...

2009-10-01

359

Assessing drivers of N2O production in California tomato cropping systems.  

PubMed

Environmental conditions and agricultural management events affect the availability of substrates and microbial habitat required for the production and consumption of nitrous oxide (N2O), influencing the temporal and spatial variability of N2O fluxes from soil. In this study, we monitored for diurnal and event-related patterns in N2O emissions in the field, evaluated how substrate availability influenced denitrification, and assessed N2O reduction potential following major events in two tomato (Lycopersicon esculentum) management systems on clay loam soils: 1) conventional (sidedress fertilizer injection, furrow irrigation, and standard tillage) and 2) integrated (fertigation, subsurface drip irrigation, and reduced tillage). Potential denitrification activity, substrate limitation, and reduction to N2 were measured with an anaerobic slurry technique. In the field, we found no consistent diurnal patterns. This suggests that controlling factors that vary on an event-basis overrode effects of diurnally variable controls on N2O emissions. The lack of consistent diurnal patterns also indicates that measuring N2O emissions once per day following major events is sufficient to adequately assess annual N2O emissions in those systems. Nitrous oxide emissions varied per event and across functional locations in both systems. This illustrates that mechanisms underlying N2O emissions vary at relatively small temporal and spatial scales and demonstrates the importance of studying N2O emissions in the context of events and functional locations. In the conventional system, N2O fluxes were high [74.2±43.9-390.5±90.1 ?g N2O-N m(-2) h(-1)] and N2O reduction potential was significant. Both management systems exhibited carbon limitation on denitrification rates; and rates were N limited in the third fertigation event in the integrated system. Our findings suggest that denitrification is strongly contributing to high N2O emissions in conventional tomato cropping systems in California. Hence, management practices that reduce the conditions that favor denitrification, such as subsurface drip irrigation, are promising strategies for N2O reduction. PMID:23642761

Kennedy, Taryn; Decock, Charlotte; Six, Johan

2013-11-01

360

Teleradiology as a driver for regional-scale, multi-organizational, high-volume telehealth systems  

NASA Astrophysics Data System (ADS)

Many regions face a crucial shortage of radiologists, especially in rural areas. In 2001 the Navajo Area Indian Health Service issued an RFP for teleradiology services. The University of Arizona department of Radiology received the contract and worked with Navajo Area service units to create an effective teleradiology service while overcoming challenges of communications infrastructure and multiple organizational boundaries. Department personnel worked with Navajo Area to design and implement new high-speed communications infrastructure on Navajo lands to support teleradiology services. This deployment was completed in the Spring of 2002. Each Area service unit is essentially an independent organization and maintains separate information about patients. This creates a complex, multi-organizational information environment. The case volume for teleradiology, including three sites other than the Navajo Areas, is at approximately 2,000 cases per month. Teleradiology is a routine part of the work flow at the university and is increasingly becoming integrated into the work flow at the rural sites. We have found teleradiology to be extremely effective in addressing the problems of medically underserved areas. Multi-organizational operation presents challenges for electronic integration requiring collaboration from appropriate clinical and technical personnel. The multi-organizational factor also benefits from an evolutionary approach with gradually increasing integration.

McNeill, Kevin M.; Carroll, Mark; Holcomb, Michael J.; Frost, Meryll M.; Yonsetto, Pete; Schwarz, Ron; Haber, Kai

2003-05-01

361

A knowledge-based decision support system for payload scheduling  

NASA Technical Reports Server (NTRS)

The role that artificial intelligence/expert systems technologies play in the development and implementation of effective decision support systems is illustrated. A recently developed prototype system for supporting the scheduling of subsystems and payloads/experiments for NASA's Space Station program is presented and serves to highlight various concepts. The potential integration of knowledge based systems and decision support systems which has been proposed in several recent articles and presentations is illustrated.

Floyd, Stephen; Ford, Donnie

1988-01-01

362

The social support system of the Japanese elderly  

Microsoft Academic Search

The social support system of the Japanese elderly was observed in a national representative sample of elderly community residents. Perceived availability of emotional and instrumental support from family members, children living apart, siblings and relatives, neighbors, and friends was respectively estimated. For both emotional and instrumental support, the perceived most dependable source of support was family members living together, followed

Wataru Koyano; Michio Hashimoto; Tetsua Fukawa; Hiroshi Shibata; Atsuaki Gunji

1994-01-01

363

A Computuerized Operator Support System Prototype  

SciTech Connect

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.

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

2013-08-01

364

A Computuerized Operator Support System Prototype  

SciTech Connect

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.

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

2013-11-01

365

Automated support for pharmacovigilance: a proposed system.  

PubMed

Governments, manufacturers, and other entities are interested in adverse event surveillance of marketed medical products. FDA's Center for Drug Evaluation and Research redesigned the post-marketing adverse reaction surveillance process to use the advantages of new technology. As part of this effort, a 'Pharmacovigilance Working Group' designed a new strategy for the review and analyses of adverse event reports received by FDA. It created requirements which divided signal detection into five tiers: (1) Single 'urgent' reports would be sent to reviewers' workstations nightly for immediate attention. Reviewers would be able to customize definitions of 'urgent' (events that should not wait for aggregate review). (2) Single urgent reports would be placed in a context matrix containing historical counts of similar events to aid in initial interpretation. (3) In this first level of aggregate review, graphical displays would highlight patterns within all the reports, both urgent and non-urgent, and (4) periodic drug-specific tabled-based reports would display the newly received reports across a pre-defined variety of displays. These four tiers would produce passive and criteria-based results which would be presented to safety reviewers' electronic workstations. (5) Active query capabilities (routine, such as age, sex, and year distributions, as well as ad hoc) would be available for exploring alerted issues. The historical database would be migrated into the new format. All historical and new reaction data would be coded with the new MedDRA (Medical Dictionary for Regulatory Activities) scheme. The strategy was to design a full data capture system which effectively exploits current computing advances and technical performance to automate many aspects of initial adverse event review, supporting more efficient and effective clinical assessment of safety signals. PMID:11998536

Bright, Roselie A; Nelson, Robert C

2002-03-01

366

Environmental Control and Life Support System, Oxygen Generation System  

NASA Technical Reports Server (NTRS)

The Environmental Control and Life Support System (ECLSS) Group of the Flight Projects Directorate at the Marshall Space Flight Center (MSFC) in Huntsville, Alabama, is responsible for designing and building the life support systems that will provide the crew of the International Space Station (ISS) a comfortable environment in which to live and work. This is a close-up view of ECLSS Oxygen Generation System (OGS) rack. The ECLSS Group at the MSFC oversees the development of the OGS, which produces oxygen for breathing air for the crew and laboratory animals, as well as for replacing oxygen lost due to experiment use, airlock depressurization, module leakage, and carbon dioxide venting. The OGS consists primarily of the Oxygen Generator Assembly (OGA), provided by the prime contractor, the Hamilton Sundstrand Space Systems, International (HSSSI) in Windsor Locks, Cornecticut and a Power Supply Module (PSM), supplied by the MSFC. The OGA is comprised of a cell stack that electrolyzes (breaks apart the hydrogen and oxygen molecules) some of the clean water provided by the Water Recovery System and the separators that remove the gases from water after electrolysis. The PSM provides the high power to the OGA needed to electrolyze the water.

2000-01-01

367

A portable life support system for use in mines  

NASA Technical Reports Server (NTRS)

The portable life support system described in this paper represents a potential increase in the probability of survival for miners who are trapped underground by a fire or explosion. The habitability and life support capability of the prototype shelter have proved excellent. Development of survival chamber life support systems for wide use in coal mines is definitely within the capabilities of current technology.

Zeller, S. S.

1972-01-01

368

Analysis of a ubiquitous performance support system for teachers  

Microsoft Academic Search

This paper describes a Ubiquitous Performance Support System for Teachers (UPSST) and its implementation model. Personal Digital Assistants (PDAs) were used as the platform to support high?school teachers. Based on concepts of Electronic Performance Support Systems and design?based research, the authors conducted an iterative process of analysis, design, development, and evaluation. Besides the data collected from the two initial users

2009-01-01

369

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

ERIC Educational Resources Information Center

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,…

Des Jardins, Susan; Davis, Harry, Jr.

370

A service oriented architecture for performance support systems  

Microsoft Academic Search

This thesis documents research encompassing the design of dynamic electronic performance support systems. Essentially, an Electronic Performance Support System (EPSS) is complex distributed software that provides on-the-job support in order to facilitate task performance within some particular target application domain. In view of the rapid pace of change in current business and industrial environments, the conventional practice of issuing a

Syed Asghar Ali Bokhari

2007-01-01

371

Analysis of a Ubiquitous Performance Support System for Teachers  

ERIC Educational Resources Information Center

This paper describes a Ubiquitous Performance Support System for Teachers (UPSST) and its implementation model. Personal Digital Assistants (PDAs) were used as the platform to support high-school teachers. Based on concepts of Electronic Performance Support Systems and design-based research, the authors conducted an iterative process of analysis,…

Chen, Chao-Hsiu; Hwang, Gwo-Jen; Yang, Tzu-Chi; Chen, Shih-Hsuan; Huang, Shen-Yu

2009-01-01

372

Intelligent Decision Support System in Defense Maintenance Methodologies  

Microsoft Academic Search

Integrated logistics support (ILS) systems are becoming more sophisticated as the defense operations demand increasing levels of service from contractors and maintainers. Intelligent decision support system (IDSS) are required to provide adaptive automated responses for provisioning and maintenance of an increasing number of defense platforms that are now being supported either by defense organizations or by long term maintenance contracts

Kamal Haider; Jeffrey Tweedale; Pierre Urlings; Lakhmi Jain

2006-01-01

373

Management Decision Support Systems: From Theory to Practice.  

ERIC Educational Resources Information Center

A decision support system integrates individuals' intellectual resources with computer capabilities to improve decision-making quality. This paper presents the theoretical aspects of decision making and decision support and shows how the theories can be applied in developing an operational management decision-making support system for room booking…

Wong, Simon C. H.

1995-01-01

374

Connectivity at landscape scale as driver for different ecosystem processes in river systems  

NASA Astrophysics Data System (ADS)

At different spatial and temporal scales, the connectivity of habitats within the four dimensional riverine environment has been recognized as a central element in structuring and sustaining aquatic and riparian communities and controlling biogeochemical cycling in riverine landscapes. Floodplains for example are controlled by the patterns of connectivity with the river channel and the adjacent landscape elements. They are seen as biodiversity and biogeochemical hotspots and bear a strategic importance for nature conservation and ecosystem management targets in river basins and from a socioeconomic point of view, floodplains provide a multitude of ecosystem services. The deterioration of river systems and their landscapes due to regulation and land use change has prompted restoration measures aiming to improve the ecological conditions of river systems. One of the aims is to improve the connectivity between these landscape elements and by that also enhance overall the spatial heterogeneity and temporal variability within the riverine landscape. Thus, the responses of changes in connectivity are key to predict and understand effects of restoration measures. Even more insights on how species development and population dynamics are impacted can be gained by linking concepts of meta community ecology with spatial analysis and the connectivity patterns at different spatial scales as well as seasonal and long-term effects. In this presentation different aspects of connectivity, the changes due to restoration and effects for biodiversity and biogeochemical cycles are highlighted for complex riverine landscapes.

Hein, Thomas; Weigelhofer, Gabriele; Reckendorfer, Walter

2013-04-01

375

A UNIX device driver for a Translink II Transputer board  

SciTech Connect

A UNIX device driver for a TransLink II Transputer board is described. A complete listing of the code is presented. The device driver allows a transputer array to be used with the A/UX operating system.

Wiley, J.C.

1991-01-01

376

Real-Time Nonintrusive Detection of Driver Drowsiness: Phase II.  

National Technical Information Service (NTIS)

This project is the extension of the Northland Advanced Transportation System Research Laboratory (NATSRL) FY 2008 project titled Real-time Nonintrusive Detection of Driver Drowsiness, which aims to develop a real-time, nonintrusive driver drowsiness dete...

X. Yu

2010-01-01

377

STEP-AIRSEDS System Engineering Support.  

National Technical Information Service (NTIS)

This report summarizes and highlights the activities in support of the Space Transportation using Electrodynamic Propulsion Atmospheric Ionospheric Research Small Expendable Deployer Satellite (STEP-AIRSEDS) Project for the period of May 16, 2000 through ...

T. Rowell L. Taliaferro

2001-01-01

378

Design and implementation of an environmental decision support system  

Microsoft Academic Search

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

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

2001-01-01

379

Evaluating informatics applications - clinical decision support systems literature review  

Microsoft Academic Search

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

Bonnie Kaplan

2001-01-01

380

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

SciTech Connect

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.

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

381

An Introduction to Clinical Decision Support Systems  

Microsoft Academic Search

Library support of clinical decision making ranges from passive (traditional library collections of books and journals) to highly active (professional services, such as clinical medical librarians, LATCH, and informationists). Support of mobile computing resources and subscriptions to point-of-care services, such as UpToDate® and DynaMed®, moves libraries toward interactive resources to aid health care providers in their decisions about specific patient

Mary Moore; Kimberly A. Loper

2011-01-01

382

Effects of Single Versus Multiple Warnings on Driver Performance  

Microsoft Academic Search

Objective: To explore how a single master alarm system affects drivers' responses when compared with multiple, distinct warnings. Background: Advanced driver warning systems are intended to improve safety, yet inappropriate integration may increase the complexity of driving, especially in high workload situations. This study investigated the effects of auditory alarm scheme, reliability, and collision event type on driver performance. Method:

M. L. Cummings; Ryan M. Kilgore; Enlie Wang; Louis Tijerina; Dev S. Kochhar

2007-01-01

383

System support software for TSTA (Tritium Systems Test Assembly)  

SciTech Connect

The fact that Tritium Systems Test Assembly (TSTA) is an experimental facility makes it impossible and undesirable to try to forecast the exact software requirements. Thus the software had to be written in a manner that would allow modifications without compromising the safety requirements imposed by the handling of tritium. This suggested a multi-level approach to the software. In this approach (much like the ISO network model) each level is isolated from the level below and above by cleanly defined interfaces. For example, the subsystem support level interfaces with the subsystem hardware through the software support level. Routines in the software support level provide operations like ''OPEN VALVE'' and CLOSE VALVE'' to the subsystem level. This isolates the subsystem level from the actual hardware. This is advantageous because changes can occur in any level without the need for propagating the change to any other level. The TSTA control system consists of the hardware level, the data conversion level, the operator interface level, and the subsystem process level. These levels are described.

Claborn, G.W.; Mann, L.W.; Nielson, C.W.

1987-10-01

384

Dedicated training system application to support a digital system upgrade  

SciTech Connect

Digital instrumentation and control (I and C) system upgrades are currently being pursued in growing numbers within the nuclear power industry in order to improve performance and reliability and to replace aging analog hardware. One such recent application is implementation of a digital feedwater control system at the Pacific Gas and Electric Diablo Canyon units. In addition to the set of equipment installed in the field, a corresponding subset of equipment identical in nature to a portion of the field system was purchased as a full-scope training system. The primary purpose of the training system was to support lab experience for utility I and C engineers and technicians who would be required to perform maintenance. Since installation and start-up, however, experience has shown there to be a number of additional benefits derived from use of the training system. This paper provides an overview of this experience and develops a basis for promoting use of such a training system as a valuable asset to complement implementation of any digital I and C system upgrade of this type.

Reinholdt, J.; Hefler, J.; Catullo, W.; Thomas, V.

1990-01-01

385

System Software Support for Mobile-Agent Computing.  

National Technical Information Service (NTIS)

We investigated new system software architectures that support mobile code, based on network (and distributed) computing. The primary goal was to support an application's reliance on network resources, rather than local ones (which are often scarce in def...

J. Pasquale

2002-01-01

386

An Intergenerational Support System for Child Welfare Families.  

ERIC Educational Resources Information Center

Describes a program developed by the Children's Aid Society of Montgomery County, Pennsylvania, called Intergenerational Support System (ISS), in which senior volunteers serve as support persons for problem families. (SAK)

Harnett, Joan

1989-01-01

387

Dynamic drivers of a shallow-water hydrothermal vent ecogeochemical system (Milos, Eastern Mediterranean)  

NASA Astrophysics Data System (ADS)

Shallow-water hydrothermal vents share many characteristics with their deep-sea analogs. However, despite ease of access, much less is known about the dynamics of these systems. Here, we report on the spatial and temporal chemical variability of a shallow-water vent system at Paleochori Bay, Milos Island, Greece, and on the bacterial and archaeal diversity of associated sandy sediments. Our multi-analyte voltammetric profiles of dissolved O2 and hydrothermal tracers (e.g. Fe2+, FeSaq, Mn2+) on sediment cores taken along a transect in hydrothermally affected sediments indicate three different areas: the central vent area (highest temperature) with a deeper penetration of oxygen into the sediment, and a lack of dissolved Fe2+ and Mn2+; a middle area (0.5 m away) rich in dissolved Fe2+ and Mn2+ (exceeding 2 mM) and high free sulfide with potential for microbial sulfide oxidation as suggested by the presence of white mats at the sediment surface; and, finally, an outer rim area (1-1.5 m away) with lower concentrations of Fe2+ and Mn2+ and higher signals of FeSaq, indicating an aged hydrothermal fluid contribution. In addition, high-frequency temperature series and continuous in situ H2S measurements with voltammetric sensors over a 6-day time period at a distance 0.5 m away from the vent center showed substantial temporal variability in temperature (32 to 46 ºC ) and total sulfide (488 to 1329 µM) in the upper sediment layer. Analysis of these data suggests that tides, winds, and abrupt geodynamic events generate intermittent mixing conditions lasting for several hours to days. Despite substantial variability, the concentration of sulfide available for chemoautotrophic microbes remained high. These findings are consistent with the predominance of Epsilonproteobacteria in the hydrothermally influenced sediments Diversity and metagenomic analyses on sediments and biofilm collected along a transect from the center to the outer rim of the vent provide further insights on the metabolic activities and the environmental factors shaping these microbial communities . Both bacterial and archaeal diversity changed along the transect as well as with sediment depth, in line with the geochemical measurements. Beside the fact that it harbors an unexpected diversity of yet undescribed bacteria and archaea, this site is also a relevant model to investigate the link between ecological and abiotic dynamics in such instable hydrothermal environments. Our results provide evidence for the importance of transient geodynamic and hydrodynamic events in the dynamics and distribution of chemoautotrophic communities in the hydrothermally influenced sediments of Paleochori Bay.

Yücel, Mustafa; Sievert, Stefan; Giovanelli, Donato; Foustoukos, Dionysis; DeForce, Emelia; Thomas, François; Vetriani, Constantino; Le Bris, Nadine

2014-05-01

388

Environmental Control and Life Support System, Water Recovery System  

NASA Technical Reports Server (NTRS)

The Environmental Control and Life Support System (ECLSS) Group of the Flight Projects Directorate at the Marshall Space Flight Center (MSFC) is responsible for designing and building the life support systems that will provide the crew of the International Space Station (ISS) a comfortable environment in which to live and work. This is a close-up view of ECLSS Water Recovery System (WRS) racks. The MSFC's ECLSS Group overseas much of the development of the hardware that will allow a constant supply of clean water for four to six crewmembers aboard the ISS. The WRS provides clean water through the reclamation of wastewaters, including water obtained from the Space Shuttle's fuel cells, crewmember urine, used shower, handwash and oral hygiene water cabin humidity condensate, and Extravehicular Activity (EVA) wastes. The WRS is comprised of a Urine Processor Assembly (UPA), and a Water Processor Assembly (WPA). The UPA accepts and processes pretreated crewmember urine to allow it to be processed along with other wastewaters in the WPA, which removes free gas, organic, and nonorganic constituents before the water goes through a series of multifiltration beds for further purification. Product water quality is monitored primarily through conductivity measurements. Unacceptable water is sent back through the WPA for reprocessing. Clean water is sent to a storage tank. The water must meet stringent purity standards before consumption by the crew. The UPA provided by the MSFC and the WRA is provided by the prime contractor, Hamilton Sundstrand Space Systems, International (HSSSI) from Cornecticut.

2000-01-01

389

Graduated Driver Licensing: The New Zealand Experience.  

ERIC Educational Resources Information Center

Evaluates the graduated driver-licensing (GDL) system in New Zealand. Describes driver licensing and crash fatality rates before and after the implementation of GDL in 1987. Reports that GDL has contributed to a reduction in crashes among young people. (Contains 2 figures and 6 references.) (AUTHOR/WFA)

Begg, Dorothy; Stephenson, Shaun

2003-01-01

390

Modeling Driver Behavior in a Cognitive Architecture  

Microsoft Academic Search

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

Dario D. Salvucci

2006-01-01

391

Nuclear reactor heat transport system component low friction support system  

DOEpatents

A support column for a heavy component of a liquid metal fast breeder reactor heat transport system which will deflect when the pipes leading coolant to and from the heavy component expand or contract due to temperature changes includes a vertically disposed pipe, the pipe being connected to the heavy component by two longitudinally spaced cycloidal dovetail joints wherein the distal end of each of the dovetails constitutes a part of the surface of a large diameter cylinder and the centerlines of these large diameter cylinders intersect at right angles and the pipe being supported through two longitudinally spaced cycloidal dovetail joints wherein the distal end of each of the dovetails constitutes a part of the surface of a large diameter cylinder and the centerlines of these large diameter cylinders intersect at right angles, each of the cylindrical surfaces bearing on a flat and horizontal surface.

Wade, Elman E. (Ruffs Dale, PA)

1980-01-01

392

Facilities and support systems for a 90-day test of a regenerative life support system  

NASA Technical Reports Server (NTRS)

A 90-day test is reported of a regenerative life support system which was completed in a space station simulator. The long duration of the test and the fact that it was manned, imposed rigid reliability and safety requirements on the facility. Where adequate reliability could not be built into essential facility systems, either backup systems or components were provided. Awareness was intensified by: (1) placing signs on every piece of equipment that could affect the test, (2) painting switches on all breaker panels a bright contrasting color, (3) restricting access to the test control area, and (4) informing personnel in the facility (other than test personnel) of test activities. It is concluded that the basic facility is satisfactory for conducting long-duration manned tests, and it is recommended that all monitor and alarm functions be integrated into a single operation.

Malin, R. L.

1972-01-01

393

Commercialization of regenerative life support systems  

NASA Astrophysics Data System (ADS)

Over the past 30 years NASA has funded research into the development of self sustained habitats for use as future Lunar and Martian outposts. A key element of this work has been the development of small scale liquid and solid waste processors. A secondary goal of this research has been to transfer this technology base to the private sector. This paper describes several programs which are involved in this Advanced Life Support technology transfer activity. The two programs highlighted in this paper are the CELSS Antarctic Analog Program and the Advanced Life Support for Extreme Environments program.

Flynn, Michael; Bubenheim, David

1998-01-01

394

The Effects of Different Systems of Vehicle Lighting on a Driver'S Ability to See Dark Objects in Well Lit Streets.  

National Technical Information Service (NTIS)

A comparison is made of the effects on the visibility of otherwise unlit objects of four types of vehicle lighting used by drivers in lighted streets. Observers were driven at 30 mile/h in a car along a straight well-lit track towards a stationary opposin...

C. R. Faulkner S. J. Older

1967-01-01

395

Supporting conflict resolution in cooperative design systems  

Microsoft Academic Search

The author presents an implemented computational model, based on studies of human group problem solving, for supporting conflict resolution in cooperative design. This model is based on the insights that general conflict resolution expertise exists separately from domain-level design expertise, and that this expertise can be instantiated in the context of particular conflicts into specific advice for resolving these conflicts.

Mark Klein

1991-01-01

396

Decision support system for regional electricity planning  

Microsoft Academic Search

Electricity appears to be the energy carrier of choice for modern economics since growth in electricity has outpaced growth in the demand for fuels. A decision maker (DM) for accurate and efficient decisions in electricity distribution requires the sector wise and location wise electricity consumption information to predict the requirement of electricity. In this regard, an interactive computer-based Decision Support

T. V. Ramachandra; Vince George; Krishna S. Vamsee; G. B. Purnima

2006-01-01

397

Crop Production for Advanced Life Support Systems  

Microsoft Academic Search

The use of plants for bioregenerative life support for space missions was first studied by the US Air Force in the 1950s and 1960s. Extensive testing was also conducted from the 1960s through the 1980s by Russian researchers located at the Institute of Biophysics in Krasnoyarsk, Siberia, and the Institute for Biomedical Problems in Moscow. NASA initiated bioregenerative research in

R M Wheeler; J C Sager

2006-01-01

398

Accident risk and driver behaviour  

Microsoft Academic Search

The concepts of risk compensation and risk homeostasis are often used to describe or to explain drivers' tendencies to react to traffic system changes whether in roads, vehicles, weather conditions or in their own skills. However, it is important to distinguish between the general phenomenon and mechanisms underlying it. This paper first points out that to understand the basic mechanisms

Heikki Summala

1996-01-01

399

Teenage Drivers: Patterns of Risk.  

ERIC Educational Resources Information Center

Reports on patterns of risk among teenage drivers through a review and synthesis of the literature. Varying patterns of risk form the basis for graduated licensing systems designed to promote low-risk and discourage high-risk driving. (Contains 6 tables, 13 figures, and 29 references.) (AUTHOR/WFA)

Williams, Allan F.

2003-01-01

400

Architectural and Operating System Support for Orthogonal Persistence  

Microsoft Academic Search

Over the past ten years much research effort has been expended in attempting to build systems which support orthogonal persistence. Such systems allow all data to persist for an arbitrary length of time, possibly longer than the creating program, and support access and manipulation of data in a uniform manner, regardless of how long it persists. Persistent systems are usually

John Rosenberg

1992-01-01

401

Catchcopy Creation Support System Using Electronic Dictionary and Genetic Programming  

Microsoft Academic Search

In this paper, we propose a catchcopy creation support system. In respect of a vocabulary and getting an idea, it is difficult for inexperienced people to make a catch copy. This system will support users from these points. In the system, EDR electronic dictionary and Genetic Programming are employed. EDR electronic dictionary which has large-scale knowledge is used as a

Tomomi Matsudaira; Masafumi Hagiwara

2004-01-01

402

A Clinical Decision Support System For Managing Flexor Tendon Injuries  

Microsoft Academic Search

A Clinical Decision Support System has been developed using the Exsys software for the flexor tendon injuries in Zone II encompassing the continuum from injury to complete rehabilitation of the tendon. The system architecture uses the rules based logic blocks to create a decision support system, which takes the user through series of questions, and based on the answers input,

Prashant Junankar; Dinesh P. Mital; Syed Haque; Shankar Srinivasan

2006-01-01

403

A RESEARCH SUPPORT SYSTEM FRAMEWORK FOR WEB DATA MINING  

Microsoft Academic Search

Design and implementation of a research support system for web data mining has become a challenge for researchers wishing to utilize useful information on the web. This paper proposes a framework for web data mining support systems. These systems are designed for identifying, extracting, filtering and analyzing data from web resources. They combines web retrieval and data mining techniques together

Jin Xu; Yingping Huang; Gregory Madey

2003-01-01

404

Delivering environmental decision support systems: software tools and techniques  

Microsoft Academic Search

A suite of “desirable features” for Environmental Decision Support Systems (EDSS) is proposed by identifying the general attributes of environmental systems which are of importance to modelling and simulation, and the different categories of users of EDSSs. With these features as a guide, a review and discussion of the approaches to delivering Environmental Decision Support Systems is presented. The two

A. E. Rizzoli; W. J. Young

1997-01-01

405

Warning Systems Research Support: Final Report.  

National Technical Information Service (NTIS)

The report describes the current warning environment, accordingly updates the requirements for an integrated national warning system, and then specifies a system design that will meet these requirements. Additionally, it discusses in detail various aspect...

A. E. Bornstein N. M. Bosak L. J. Hoddy B. D. Miller M. I. Rosenthal

1966-01-01

406

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

PubMed

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

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

2011-05-01

407

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

NASA Technical Reports Server (NTRS)

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.

1970-01-01

408

Integrated supply\\/demand decision support system  

Microsoft Academic Search

The Decision\\/Simulation System is an innovative utility planning tool that facilitates the analysis of risk. It was developed by Temple, Barker and Sloane, Inc., and M.S. Gerber and Associates for the Electric Power Research Institute. Three features distinguish this framework from other planning models: The Decision System uses a generalized decision analysis approach. The Simulation System addresses the critical aspects

M. A. Farber; E. C. Brusger

1986-01-01

409

An Internet Voting System Supporting User Privacy  

Microsoft Academic Search

This work introduces the Adder system1 , an Internet- based, free and open source electronic voting system which employs strong cryptography. Our system is a fully functional e-voting platform and enjoys a number of security properties, such as robustness, trust distri- bution, ballot privacy, auditability and verifiability. It can readily implement and carry out various voting pro- cedures in parallel

Aggelos Kiayias; Michael Korman; David Walluck

2006-01-01

410

Microbial Ecology of Isolated Life Support Systems  

Microsoft Academic Search

\\u000a Microorganisms are the most widely spread form of living matter – occurring in every climatic region and in every zone of\\u000a water and soil strata. They have a profound role in biogeochemical processes and are crucial for the completion of all biologically\\u000a important material cycles, which support all life on Earth. Microorganisms can enter into varying interactions with human\\u000a population

Lydia A. Somova; Nickolay S. Pechurkin; Mark Nelson; Lawrence K. Wang

411

Structural analysis of FAST reflector supporting system  

NASA Astrophysics Data System (ADS)

According to the deformation and movement requirements of the FAST reflector, a multi-purpose analysis, including the load-bearing behavior, deformation, construction costs of the reflector supporting structure and its model, is presented in this paper. The advantages and disadvantages of steel and aluminum alloy structures are also discussed and compared through detailed design calculations under load-bearing capacity and normal working conditions.

Luo, Y. F.; Deng, C. G.; Li, G. Q.; He, Y. M.

412

A survey of life support system automation and control  

NASA Technical Reports Server (NTRS)

The level of automation and control necessary to support advanced life support systems for use in the manned space program is steadily increasing. As the length and complexity of manned missions increase, life support systems must be able to meet new space challenges. Longer, more complex missions create new demands for increased automation, improved sensors, and improved control systems. It is imperative that research in these key areas keep pace with current and future developments in regenerative life support technology. This paper provides an overview of past and present research in the areas of sensor development, automation, and control of life support systems for the manned space program, and it discusses the impact continued research in several key areas will have on the feasibility, operation, and design of future life support systems.

Finn, Cory K.

1993-01-01

413

Supporting Technology Integration within a Teacher Education System  

ERIC Educational Resources Information Center

The purpose of this case study was to examine a teacher education system relative to the degree of performance support for the use of technology to support learning. Performance support was measured by the presence of factors such as clear expectations, feedback, tools, rewards, incentives, motivation, capacity, skills, and knowledge within the…

Schaffer, Scott P.; Richardson, Jennifer C.

2004-01-01

414

Cross-disciplinary research in analytic decision support systems  

Microsoft Academic Search

A main problem in decision support contexts is that unguided decision making is difficult and can lead to inefficient decision processes and undesired consequences. Therefore, decision support systems (DSSs) are of prime concern to any organization and there have been numerous approaches to delivering decision support from, e.g., computational, mathematical, financial, philosophical, psychological, and sociological angles. A key observation, however,

Mats Danielson; Love Ekenberg; Karin Hansson; Jim Idefeldt; Aron Larsson; M. Paahlman; Ari Riabacke; David Sundgren

2006-01-01

415

A Global Performance Support System for Students and Staff.  

ERIC Educational Resources Information Center

Describes the design and evaluation of a prototype electronic performance support system for use in a university setting that was based on a needs analysis relating to an existing lecture-based course. Performance support for staff and for students is examined, and self-study support material is discussed. (LRW)

Barker, Philip; And Others

1995-01-01

416

Using Collaborative Authoring To Develop a Hypermedia Performance Support System.  

ERIC Educational Resources Information Center

Considers the need of factory workers for support in rapidly changing tasks and suggests that electronic performance support systems can reduce training time, can be updated many times as procedures change, and can allow those with relevant manufacturing expertise to create electronic procedures that support shop floor workers more effectively.…

Tjahjono, Benny; Greenough, Richard

2002-01-01

417

A model for railway crew allocation support system  

Microsoft Academic Search

The authors discuss a railway crew allocation problem and propose a model to support schedulers on the computer. They have developed a crew allocation support system which supports trial and error generation of crew service patterns by schedulers. Here they analyze the crew allocation problem for a certain company to build the basic problem structure. Next, they propose a conceptual

Kenji Kataoka; Kiyotoshi Komaya

1992-01-01

418

A Foundation for the Study of Group Decision Support Systems  

Microsoft Academic Search

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

Gerardine DeSanctis; R. Brent Gallupe

1987-01-01

419

Attitude ground support system for the solar maximum mission spacecraft  

Microsoft Academic Search

The SMM attitude ground support system (AGSS) supports the acquisition of spacecraft roll attitude reference, performs the in-flight calibration of the attitude sensor complement, supports onboard control autonomy via onboard computer data base updates, and monitors onboard computer (OBC) performance. Initial roll attitude acquisition is accomplished by obtaining a coarse 3 axis attitude estimate from magnetometer and Sun sensor data

G. Nair

1980-01-01

420

Developing Negotiation Decision Support Systems that Support Mediators: A Case Study of the Family_Winner System  

Microsoft Academic Search

Negotiation Support Systems have traditionally modelled the process of negotiation. They often rely on mathematical optimisation techniques and ignore heuristics and other methods derived from practice. Our goal is to develop systems capable of decision support to help resolve a given dispute. A system we have constructed, Family_Winner, uses empirical evidence to dynamically modify initial preferences throughout the negotiation process.

Emilia Bellucci; John Zeleznikow

2005-01-01

421

Teenaged Drivers and Fatal Crash Responsibility. Preliminary Report.  

ERIC Educational Resources Information Center

According to data obtained for the year 1978 from the Fatal Accident Reporting System (FARS) and from state governments under contract to the National Highway Traffic Safety Administration, teenaged drivers (especially males) have much higher rates of fatal crash involvement than older drivers. In addition, teenaged drivers are more likely than…

Williams, Allan F.; Karpf, Ronald S.

422

Induction linac drivers for commercial heavy-ion beam fusion  

SciTech Connect

This paper discusses induction linac drivers necessary to accelerate heavy ions at inertial fusion targets. Topics discussed are: driver configurations, the current-amplifying induction linac, high current beam behavior and emittance growth, new considerations for driver design, the heavy ion fusion systems study, and future studies. 13 refs., 6 figs., 1 tab. (LSP)

Keefe, D.

1987-11-01

423

Controlled ecological life-support system - Use of plants for human life-support in space  

NASA Technical Reports Server (NTRS)

Scientists and engineers within NASA are conducting research which will lead to development of advanced life-support systems that utilize higher plants in a unique approach to solving long-term life-support problems in space. This biological solution to life-support, Controlled Ecological Life-Support System (CELSS), is a complex, extensively controlled, bioengineered system that relies on plants to provide the principal elements from gas exchange and food production to potable water reclamation. Research at John F. Kennedy Space Center (KSC) is proceeding with a comprehensive investigation of the individual parts of the CELSS system at a one-person scale in an approach called the Breadboard Project. Concurrently a relatively new NASA sponsored research effort is investigating plant growth and metabolism in microgravity, innovative hydroponic nutrient delivery systems, and use of highly efficient light emitting diodes for artificial plant illumination.

Chamberland, D.; Knott, W. M.; Sager, J. C.; Wheeler, R.

1992-01-01

424

Using Computational Intelligence to Develop Intelligent Clinical Decision Support Systems  

Microsoft Academic Search

\\u000a Clinical Decision Support Systems have the potential to optimize medical decisions, improve medical care, and reduce costs.\\u000a An effective strategy to reach these goals is by transforming conventional Clinical Decision Support in Intelligent Clinical\\u000a Decision Support, using knowledge discovery in data and computational intelligence tools. In this paper we used genetic programming\\u000a and decision trees. Adaptive Intelligent Clinical Decision Support

Alexandru G. Floares

2009-01-01

425

Development of an errorable car-following driver model  

Microsoft Academic Search

An errorable car-following driver model is presented in this paper. An errorable driver model is one that emulates human driver’s functions and can generate both nominal (error-free), as well as devious (with error) behaviours. This model was developed for evaluation and design of active safety systems. The car-following data used for developing and validating the model were obtained from a

H.-H. Yang; H. Peng

2010-01-01

426

Evaluating Detection and Diagnostic Decision Support Systems for Bioterrorism Response  

PubMed Central

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.

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

2004-01-01

427

Communications system evolutionary scenarios for Martian SEI support  

NASA Technical Reports Server (NTRS)

In the Space Exploration Initiative (SEI) mission scenarios, expanding human presence is the primary driver for high data rate Mars-Earth communications. To support an expanding human presence, the data rate requirement will be gradual, following the phased implementation over time of the evolving SEI mission. Similarly, the growth and evolution of the space communications infrastructure to serve this requirement will also be gradual to efficiently exploit the useful life of the installed communications infrastructure and to ensure backward compatibility with long-term users. In work conducted over the past year, a number of alternatives for supporting high data rate Mars-Earth communications have been analyzed with respect to their compatibility with gradual evolution of the space communications infrastructure. The alternatives include RF, millimeter wave (MMW), and optical implementations, and incorporate both surface and space-based relay terminals in the Mars and Earth regions. Each alternative is evaluated with respect to its ability to efficiently meet a projected growth in data rate over time, its technology readiness, and its capability to satisfy the key conditions and constraints imposed by evolutionary transition. As a result of this analysis, a set of attractive alternative communications architectures have been identified and described, and a road map is developed that illustrates the most rational and beneficial evolutionary paths for the communications infrastructure.

Kwong, Paulman W.; Bruno, Ronald C.

1992-01-01

428

Data management for decision support systems  

Microsoft Academic Search

In describing a DSS architecture it is common to include a database as a component in the system. However, the DSS literature pays little attention to the data management function. Emphasis is placed on model aspects and user-system interface. In this paper we shall develop some characteristics of the data management function for a DSS. They are based on data

Leif B. Methlie

1980-01-01

429

SMART AIRCREW INTEGRATED LIFE SUPPORT SYSTEM (SAILSS)  

Microsoft Academic Search

of the lower body, as blood from the upper part of the body shifts into these lower vessels. The pooling of blood in the lower extremities translates into reduced cardiac output Cardiovascular system reflexes respond by increasing heart rate to maintain adequate blood flow to the central nervous system in an attempt to preserve normal brain function. The physical symptoms

E. Forster; P. Whitley; B. Shender

430

Operational support facility (OSF) implementation and support of the WSR-88D open systems upgrade  

Microsoft Academic Search

Prototype developments for the rehost of the current weather surveillance radar-1988 Doppler (WSR-88D) radar product generation (RPG) and radar data acquisition (RDA) platforms to open systems compliant platforms will be accomplished by teams outside of the operational support facility (OSF). The OSF, however, will be responsible for the field implementation and operational support of the upgraded platforms. This paper presents

James D. Belville; Edward L. Berkowitz; J. R. Reed

1997-01-01

431

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

Microsoft Academic Search

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

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

2009-01-01

432

Computer-Based Decision Support System for Tailoring Logistic Support Analysis (LSA) Contract Requirements.  

National Technical Information Service (NTIS)

This thesis involved the development of a microcomputer program to help tailor Logistic Support Analysis (LSA), Mil-Std-1388-1A, requirements for contractual efforts. It is referred to as the LSA Decision Support System (DSS) Program. This program is inte...

P. D. Dunbar

1988-01-01

433

Conflicting view support by medical information systems.  

PubMed

One of the advantages of current database systems is the capability to enforce global integrity constraints on a large amount of data. Input of contradicting data will be rejected by database systems in order to maintain correctness. On the other hand, in medical information systems it may be necessary to realize two or more databases in one system, where there are some controlled contradictions among these databases. For example, if a doctor wants to hide the real disease name from the patient in critical condition, the database viewed by the patient should be different from the real database, although each of these databases should be conflict free and large amounts of data are shared by both. This kind of problem was not discussed for commercial business-oriented databases. Data sharing and data security are important functions required for medical information systems. There are, however, cases when we need to show non-real data to some users. Security mechanisms usually prevent a user from retrieving critical data. If a request for retrieval of some data is rejected by the system, a user may find there is something secret being kept from him. In order to cope with these situations, we introduce the POSTGRES database system. POSTGRES is a generalized relational database system developed at the University of California. The form of POSTGRES rule is as follows: On event (To) object WHERE POSTQUEL-qualification Then Do [instead] POSTQUEL-command(s) The POSTGRES rule shows that event is retrieve, replace, delete, append, new (i.e., replace or append) or old (i.e., delete or replace). The concept of objects is introduced in object-oriented databases. In relational database systems, an object corresponds to each data value, an attribute, or a relation. The optional keyword "instead" indicates that the action indicated by POSTQUEL-command(s) is to be performed instead of the action which caused the rule to activate. This keyword plays very important role for our purpose. By preparing a standard story which is consistent with the patient's condition, the doctor can make a smooth explanation to the patient showing the stories instead of the critical data. So, if medical personnel and system designers prepare the standard stories or data for the explanation and store such data in the system, the users of medical information systems (doctors) can take the benefit of the data replacement. For such a purpose, medical personnel and system designers classify the patients' data according to their age, sex, occupational history, personal history, and diseases. Standard story or data should be prepared for each user class in advance. Using POSTGRES rule system in medical information systems, doctors can make a smooth explanation of a patientUs condition in serious cases, when hiding real data is required. The validity of POSTGRES rule system is proved where data exchange is needed for data protection. For example, when a doctor writes a prescription of a placebo through the ordering system, POSTGRES rule system will identify its existence. We believe that POSTGRES rule system can be applied to many fields in medical data processing. PMID:8591298

Ohboshi, N; Kambayashi, Y; Takahashi, T

1995-01-01

434

Corps Water Management System Decision Support Modeling and Integration  

Microsoft Academic Search

The U.S. Army Corps of Engineers has developed and deployed a comprehensive data acquisition and hydrologic modeling system for short-term real time decision support of water control operations. This system, known as the \\

William J. Charley

435

Instructional Design Issues for Electronic Performance Support Systems.  

ERIC Educational Resources Information Center

Reviews instructional design issues for electronic performance support systems and outlines strategies for developing an effective system for a given work setting. Discusses overall design, the information database, the advisory and instructional components, and access to applications software. (AEF)

Milheim, William

1997-01-01

436

Naval Sea Systems Command Logistic Support Analysis Implementation Procedures.  

National Technical Information Service (NTIS)

This report documents Logistic Support Analysis (LSA) implementation procedures and tailoring guidance for unique requirements of the System/Equipment Acquisition Program Manager, the Ship Acquisition Program Manager, and the System Program Manager within...

1985-01-01

437

Knowledge based Industrial Decision Support systems and applications  

Microsoft Academic Search

The increasing complexity of industrial systems and the competitive marketplace require and innovative way to improve efficiency, quality and performance. There is a rapidly growing demand for smart Industrial Decision Support (IDS) systems in industry.

Xinghuo Yu

2009-01-01

438

A support architecture for reliable distributed computing systems  

NASA Technical Reports Server (NTRS)

The Clouds project is well underway to its goal of building a unified distributed operating system supporting the object model. The operating system design uses the object concept of structuring software at all levels of the system. The basic operating system was developed and work is under progress to build a usable system.

Dasgupta, Partha; Leblanc, Richard J., Jr.

1988-01-01

439

Considerations of design for life support systems.  

PubMed

During the design phase for construction of artificial ecosystems, the following considerations are important. (1) Influences on living things in the ecosystem, such as lifestyles and physiological functions caused by stresses due to environmental changes. The long stay in the artificial ecosystem has a possibility to lead to evolutional change in the living things. (2) The system operation method in trouble, which relates to maintainability. (3) The system metamorphosis according to new technologies. (4) Route minimization of material flow that leads to an optimum system layout. PMID:14503521

Ashida, Akira

2003-01-01

440

PEGASUS: Designing a System for Supporting Group Activity  

ERIC Educational Resources Information Center

Purpose: The purpose of this paper is to present the design and first results of the integration of a web-based system person-centred group-activity support system (PEGASUS) in university instruction, as a means for advancing person-centred learning by supporting group activity. The PEGASUS is expected to help students and teachers in two distinct…

Kyprianidou, Maria; Demetriadis, Stavros; Pombortsis, Andreas; Karatasios, George

2009-01-01

441

Decision-Support System Workbench for Sustainable Water Management Problems  

Microsoft Academic Search

Decision Support Systems (DSS) comprise a wide-range of computer-enabled applications that are based on some form of analytical model, commonly linked to a database. Coupled with the visualization and spatial analysis facilities provided by a Geographi c Information System (GIS), a unifying framework can be developed to promote the uptake of advanced decision support technology across a wide range of

M. S. Morley; C. K. Makropoulos; D. A. Savic; D. Butler

442

Probabilistic safety assessment of support systems on CANDU stations  

Microsoft Academic Search

Atomic Energy of Canada Limited (AECL) has performed safety and reliability assessments (otherwise known as probabilistic safety assessments (PSAs)) of support systems since 1975. The purpose of this paper is to briefly describe AECL's experience in the use of PSAs on support systems and the application of PSA for a new plant design called the Canada deuterium uranium (CANDU) 3.

1989-01-01

443

Study on data based tourism management decision support system  

Microsoft Academic Search

A data based intelligent decision support system is proposed to solve problems of decision making of tourism management in complex environments. Firstly, the architecture of the decision support system integrated with several intelligence technologies is proposed, and some key technologies of implementation, such as 3S and decomposition of large decision table are also introduced. Then, some data analysis methods used

Wang Su; Du Junping; Zhou Yipeng; Sun Zengqi; Jia yingming

2010-01-01

444

A Comparative Study of Electronic Performance Support Systems  

ERIC Educational Resources Information Center

Electronic performance support systems (EPSS) deliver relevant support information to users while they are performing tasks. The present study examined the effect of different types of EPSS on user performance, attitudes, system use and time on task. Employees at a manufacturing company were asked to complete a procedural software task and…

Nguyen, Frank; Klein, James D.; Sullivan, Howard

2005-01-01

445

Intelligent Clinical Decision Support Systems based on SNOMED CT  

Microsoft Academic Search

The decision support systems that have been developed to assist physicians in the diagnostic process often are based on static data which may be out of date. We present a comprehensive analysis of artificial intelligent methods which could be applied to documents encoded by SNOMED CT. By mining information directly from SNOMED CT encoded documents, a decision support system could

Ewelina Ciolko; Fletcher Lu; Amardeep Joshi

2010-01-01

446

Information architecture of a clinical decision support system  

Microsoft Academic Search

Recent healthcare legislation, the move to electronic health records, and the accelerating pace of medical knowledge discovery combine to create an environment in which clinical decision support systems are a necessary part of most medical processes. Based on a review of current best practices, we present the information architecture of a clinical decision support system comprised of four primary components:

David E. Robbins; Varadraj P. Gurupur; John Tanik

2011-01-01

447

PRACTICAL ASPECTS OF COMPUTER-BASED CLINICAL DECISION SUPPORT SYSTEMS  

Microsoft Academic Search

The general problem of computer-based clinical decision support systems is considered. A class of rules in medical databases characteristic for therapeutic decisions has been distinguished. The necessity of application of a complete set of data for learning computerised systems of decision support has been pointed out. Rough set approach is applied to the analysis of the problem. An illustrative example

Andrzej OSSOWSKI

2002-01-01

448

A visual design support system for telecommunication services  

Microsoft Academic Search

The authors propose a visual design support system for telecommunication services that uses the state transition rule (STR) as specification knowledge and a description language. The system has excellent design support facilities, which are discussed. A designer, who has no knowledge of the professional aspects of network specifications, can describe various services from the user's viewpoint using the STR-GR (graphical

Kazumasa TAKAMI; Yoshio HARADA; Tadashi OHTA; Nobuyoshi TERASHIMA

1993-01-01

449

Status of frequency and time support for NASA systems  

NASA Technical Reports Server (NTRS)

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.

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

1994-01-01

450

Universal Customer Relationship Management Support System  

Microsoft Academic Search

Article shows some solutions which are basics of building an application called Customer Relationship Management System in a company. There are presented technics of creating universal applications and new J2EE technologies and their use.

Szymon Uczciwek; Bartosz Sakowicz; Andrzej Napieralski

2007-01-01

451

Global positioning system supported pilot's display  

NASA Technical Reports Server (NTRS)

The hardware, software, and operation of the Microwave Scanning Beam Landing System (MSBLS) Flight Inspection System Pilot's Display is discussed. The Pilot's Display is used in conjunction with flight inspection tests that certify the Microwave Scanning Beam Landing System used at Space Shuttle landing facilities throughout the world. The Pilot's Display was developed for the pilot of test aircraft to set up and fly a given test flight path determined by the flight inspection test engineers. This display also aids the aircraft pilot when hazy or cloud cover conditions exist that limit the pilot's visibility of the Shuttle runway during the flight inspection. The aircraft position is calculated using the Global Positioning System and displayed in the cockpit on a graphical display.

Scott, Marshall M., Jr.; Erdogan, Temel; Schwalb, Andrew P.; Curley, Charles H.

1991-01-01

452

Turbopump radial and axial rotor support system  

NASA Technical Reports Server (NTRS)

Design of thrust balancer minimizes leakage bypass and obviates need for conventional thrust balancer. System allows operation at low flow rates and high thrust capacity at cryogenic temperatures and high pressures.

Buckmann, P. S.

1972-01-01

453

HUPESS: Human Performance Evaluation Support System  

Microsoft Academic Search

Research and development for enhancing reliability and safety in NPPs have been mainly focused on areas such as automation\\u000a of facilities, securing safety margin of safety systems, and improvement of main process systems. Studies of TMI-2, Chernobyl,\\u000a and other NPP events have revealed that deficiencies in human factors, such as poor control room design, procedure, and training,\\u000a are significant contributing

Jun Su Ha; Poong Hyun Seong

454

Magnetic resonance elastography with twin pneumatic drivers for wave compensation.  

PubMed

MR Elastography is a new technique using conventional MRI system to assess the elastic properties of tissues. When using pneumatic driver, usually one driver was put at one place of tissue. But the shear wave generated by one pneumatic driver cannot illuminate the large area due to the attenuation. So we use two pneumatic drivers driven synchronously to generate interference shear wave in our experiments. The results from the phantom study show the interference wave pattern generated by the twin pneumatic drivers can compensate the attenuation of the shear wave when propagating in phantom. Also, a finite element modeling was used to simulate twin pneumatic driver datasets. It is hoped that by twin pneumatic drivers, we can illuminate the whole brain; the liver and large areas in-vivo. Further study will be conducted with the twin pneumatic drivers in ex-vivo and in-vivo studies. PMID:18002530

Zheng, Y; Li, G; Chen, M; Chan, Q C C; Hu, S G; Zhao, X N; Ehman, R L; Lam, E Y; Yang, E S

2007-01-01

455

Clinical Application of Bioartificial Liver Support Systems  

PubMed Central

Objective: To review the present status of bioartificial liver (BAL) devices and their obtained clinical results. Background: Acute liver failure (ALF) is a disease with a high mortality. Standard therapy at present is liver transplantation. Liver transplantation is hampered by the increasing shortage of organ donors, resulting in high incidence of patients with ALF dying on the transplantation waiting list. Among a variety of liver assist therapies, BAL therapy is marked as the most promising solution to bridge ALF patients to liver transplantation or to liver regeneration, because several BAL systems showed significant survival improvement in animal ALF studies. Until today, clinical application of 11 different BAL systems has been reported. Methods: A literature review was performed using MEDLINE and additional library searches. Only BAL systems that have been used in a clinical trial were included in this review. Results: Eleven BAL systems found clinical application. Three systems were studied in a controlled trial, showing no significant survival benefits, in part due to the insufficient number of patients included. The other systems were studied in a phase I trial or during treatment of a single patient and all showed to be safe. Most BAL therapies resulted in improvement of clinical and biochemical parameters. Conclusions: Bioartificial liver therapy for bridging patients with ALF to liver transplantation or liver regeneration is promising. Its clinical value awaits further improvement of BAL devices, replacement of hepatocytes of animal origin by human hepatocytes, and assessment in controlled clinical trials.

van de Kerkhove, Maarten Paul; Hoekstra, Ruurdtje; Chamuleau, Robert A. F. M.; van Gulik, Thomas M.

2004-01-01

456

Advanced systems engineering and network planning support  

NASA Technical Reports Server (NTRS)

The objective of this task was to take a fresh look at the NASA Space Network Control (SNC) element for the Advanced Tracking and Data Relay Satellite System (ATDRSS) such that it can be made more efficient and responsive to the user by introducing new concepts and technologies appropriate for the 1997 timeframe. In particular, it was desired to investigate the technologies and concepts employed in similar systems that may be applicable to the SNC. The recommendations resulting from this study include resource partitioning, on-line access to subsets of the SN schedule, fluid scheduling, increased use of demand access on the MA service, automating Inter-System Control functions using monitor by exception, increase automation for distributed data management and distributed work management, viewing SN operational control in terms of the OSI Management framework, and the introduction of automated interface management.

Walters, David H.; Barrett, Larry K.; Boyd, Ronald; Bazaj, Suresh; Mitchell, Lionel; Brosi, Fred

1990-01-01

457

PILOT: An intelligent distributed operations support system  

NASA Technical Reports Server (NTRS)

The Real-Time Data System (RTDS) project is exploring the application of advanced technologies to the real-time flight operations environment of the Mission Control Centers at NASA's Johnson Space Center. The system, based on a network of engineering workstations, provides services such as delivery of real time telemetry data to flight control applications. To automate the operation of this complex distributed environment, a facility called PILOT (Process Integrity Level and Operation Tracker) is being developed. PILOT comprises a set of distributed agents cooperating with a rule-based expert system; together they monitor process operation and data flows throughout the RTDS network. The goal of PILOT is to provide unattended management and automated operation under user control.

Rasmussen, Arthur N.

1993-01-01

458

Social Network Supported Process Recommender System  

PubMed Central

Process recommendation technologies have gained more and more attention in the field of intelligent business process modeling to assist the process modeling. However, most of the existing technologies only use the process structure analysis and do not take the social features of processes into account, while the process modeling is complex and comprehensive in most situations. This paper studies the feasibility of social network research technologies on process recommendation and builds a social network system of processes based on the features similarities. Then, three process matching degree measurements are presented and the system implementation is discussed subsequently. Finally, experimental evaluations and future works are introduced.

Ye, Yanming; Yin, Jianwei; Xu, Yueshen

2014-01-01

459

Social network supported process recommender system.  

PubMed

Process recommendation technologies have gained more and more attention in the field of intelligent business process modeling to assist the process modeling. However, most of the existing technologies only use the process structure analysis and do not take the social features of processes into account, while the process modeling is complex and comprehensive in most situations. This paper studies the feasibility of social network research technologies on process recommendation and builds a social network system of processes based on the features similarities. Then, three process matching degree measurements are presented and the system implementation is discussed subsequently. Finally, experimental evaluations and future works are introduced. PMID:24672309

Ye, Yanming; Yin, Jianwei; Xu, Yueshen

2014-01-01

460

Spatial and Temporal Control of Gene Expression in Drosophila Using the Inducible GeneSwitch GAL4 System. I. Screen for Larval Nervous System Drivers  

PubMed Central

There is a critical need for genetic methods for the inducible expression of transgenes in specific cells during development. A promising approach for this is the GeneSwitch GAL4 system of Drosophila. With GeneSwitch GAL4 the expression of upstream activating sequence (UAS) effector lines is controlled by a chimeric GAL4 protein that becomes active in the presence of the steroid RU486 (mifepristone). To improve the utility of this expression system, we performed a large-scale enhancer-trap screen for insertions that yielded nervous system expression. A total of 204 GeneSwitch GAL4 lines with various larval expression patterns in neurons, glia, and/or muscle fibers were identified for chromosomes I–III. All of the retained lines show increased activity when induced with RU486. Many of the lines reveal novel patterns of sensory neurons, interneurons, and glia. There were some tissue-specific differences in background expression, with muscles and glia being more likely to show activity in the absence of the inducing agent. However, >90% of the neuron-specific driver lines showed little or no background activity, making them particularly useful for inducible expression studies.

Nicholson, Louise; Singh, Gunisha K.; Osterwalder, Thomas; Roman, Gregg W.; Davis, Ronald L.; Keshishian, Haig

2008-01-01

461

Cost-effective applications in space transportation decision support systems  

NASA Astrophysics Data System (ADS)

Low cost space transportation is essential to assure proper expansion of the utilization of space and to maintain the required ground and space-based logistical support. This paper examines how a space transportation decision support system could be built and, in particular, how cost-effectiveness techniques and analysis routines would be integrated into this system. The objective is to provide a computerized decision support system that allows the user to configure and evaluate space transportation architectures with respect to cost, schedule and technical parameters. This system would be highly interactive allowing the user to evaluate and compare numerous space transportation architectures against the same and changing evaluation criteria.

Davis, Michael J.; Greenberg, Joel S.

462

Air Systems Provide Life Support to Miners  

NASA Technical Reports Server (NTRS)

Through a Space Act Agreement with Johnson Space Center, Paragon Space Development Corporation, of Tucson, Arizona, developed the Commercial Crew Transport-Air Revitalization System, designed to provide clean air for crewmembers on short-duration space flights. The technology is now being used to help save miners' lives in the event of an underground disaster.

2014-01-01

463

Mars Rover system loopwheel definition support  

NASA Technical Reports Server (NTRS)

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