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1

Teen Driver Support System Field Operational Test  

E-print Network

, such as texting #12;The Teen Driver Support System · A comprehensive technology application that employs ­ RealTeen Driver Support System Field Operational Test Preliminary Results (First 24 weeks) JanetFIRST Laboratory #12;Minnesota Department of Transportation Susan Sheehan MnDOT Technical Liaison #12;The U.S. Teen

Minnesota, University of

2

Driver Support System for Traffic Manoeuvres Jacek Malec and Per Osterling  

E-print Network

Driver Support System for Traffic Manoeuvres Jacek Malec and Per ¨Osterling Department of Computer and evaluation of the current traffic scenario. The paper focuses on some chosen aspects of driver support system The main topic of this paper is a methodology of designing driver support systems. A driver support system

Malec, Jacek

3

EPICS : operating system independent device/driver support.  

SciTech Connect

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

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

2003-01-01

4

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

5

Assessment of the occlusion technique as a means for evaluating the distraction potential of driver support systems  

Microsoft Academic Search

Driver distraction is a safety-critical issue that has been bought to greater public attention with the recent developments of more advanced driver support systems (DSS), e.g. navigation systems. Such systems have the potential to distract drivers significantly from the primary task of controlling their vehicle, potentially resulting in an accident. DSS developers need to be able to assess distraction potential

MICHAEL A. PETTITT; GARY E. BURNETT; STEVEN BAYER; A. Stevens

2006-01-01

6

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

E-print Network

TDSS will automatically send a text message to the teen's parents to inform them of the behavior. Feedback to the teen Smartphone-Based NoviceTeenage Driver Support System Motor vehicle crashes are the leading cause of teen that limit teens' exposure to risky situations. However, these programs are difficult to enforce, relying

Levinson, David M.

7

Driver Steering Support Interfaces Near the Vehicle’s Handling Limits  

Microsoft Academic Search

The goal of this thesis is to propose steering support systems that can reduce the driver’s control effort, mental load and promote safety. The driver dictates the vehicle’s motion and the support should centralize him\\/her in the control loop; thus our design philosophy is to increase driver’s responsibility and support him\\/her in the sense of information rather than automation. Incarnating

D. Katzourakis

2012-01-01

8

Using Vehicular Communication to Support Older Drivers at Road Intersections  

E-print Network

of the accidents involving older drivers happen in complex traffic situations such as road intersections [4Using Vehicular Communication to Support Older Drivers at Road Intersections: A Feasibility Study rate of older adults is much larger than for other drivers. Older drivers are also more likely to get

Aberg, Johan

9

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

10

Smartphone-Based NoviceTeenage Driver Support System www.its.umn.edu/Research/ProjectComplete.html?id=2009015  

E-print Network

or outgoing phone calls or texting while the teen is driving. Feedback to the teen driver includes warnings- hicle's speed after being warned, theTDSS will automatically send a text message to the teen's parents of teen fatalities. One approach to reducing fatalities is the use of Graduated Driver Licensing (GDL

Minnesota, University of

11

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

Microsoft Academic Search

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

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

2007-01-01

12

Steering Assistance System for Driver Characteristics using Gain Scheduling Control  

E-print Network

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

Adachi, Shuichi

13

Systems modeling for heavy ion drivers - an induction linac example  

SciTech Connect

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

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

1997-09-30

14

49 CFR 384.220 - Problem Driver Pointer System information.  

Code of Federal Regulations, 2012 CFR

...2012-10-01 2012-10-01 false Problem Driver Pointer System information. ...Substantial Compliance by States § 384.220 Problem Driver Pointer System information. ...384.232, perform the check of the Problem Driver Pointer System in...

2012-10-01

15

49 CFR 384.220 - Problem Driver Pointer System information.  

Code of Federal Regulations, 2011 CFR

...2011-10-01 2011-10-01 false Problem Driver Pointer System information. ...Substantial Compliance by States § 384.220 Problem Driver Pointer System information. ...384.232, perform the check of the Problem Driver Pointer System in...

2011-10-01

16

49 CFR 384.220 - Problem Driver Pointer System information.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Problem Driver Pointer System information. ...Substantial Compliance by States § 384.220 Problem Driver Pointer System information. ...384.232, perform the check of the Problem Driver Pointer System in...

2013-10-01

17

49 CFR 384.220 - Problem Driver Pointer System information.  

Code of Federal Regulations, 2014 CFR

...2014-10-01 2014-10-01 false Problem Driver Pointer System information. ...Substantial Compliance by States § 384.220 Problem Driver Pointer System information. ...384.232, perform the check of the Problem Driver Pointer System in...

2014-10-01

18

Study of a remote monitoring system for senior drivers  

Microsoft Academic Search

ITS (Intelligent Transport System), which connects people, vehicles and roads by information and communication technologies, has been drawing much attention these days. Telematic services, in particular, have been deployed by domestic as well as foreign automobile companies in various ways. However, in most cases their services are intended to support drivers themselves. In the meantime, provision of services to the

Hiroyuki Yamagishi; Hidekazu Suzuki; Akira Watanabe

2010-01-01

19

Short-term cardiovascular measures for driver support: Increasing sensitivity for detecting changes in mental workload.  

PubMed

With on-going increases in traffic density and the availability of more and more in-vehicle technology, driver overload is a growing concern. To reduce the burden of workload on the driver, it is essential that support systems that become available are able to use estimations of drivers' workload. In this paper a short-term cardiovascular approach to assess drivers' mental workload is described using data collected in a driving simulator study. The effects of short lasting increases in task demand (40s) on heart rate and blood pressure and derived variability measures are applied as indicators of mental effort. Fifteen drivers participated in 6 sessions of 1.5h in a driving simulator study. Two traffic density levels (7.5minute segments) were compared in which short-segments (40s) of fog were used to induce additional workload demands. Higher traffic density was reflected in increased systolic blood pressure and decreased blood pressure variability. Heart rate variability and blood pressure variability measures decreased during driving in fog in the low traffic condition, indicating increased effort investment during fog in this condition. The results show that the described short-term measures can be applied to give an indication of cardiovascular reactivity as a function workload. PMID:24508315

Stuiver, Arjan; Brookhuis, Karel A; de Waard, Dick; Mulder, Ben

2014-02-01

20

An evaluation of the New Zealand Graduated Driver Licensing System  

Microsoft Academic Search

Young drivers have a disproportionately high risk of experiencing a road traffic crash. On 1 August 1987 a Graduated Driver's Licensing System (GDLS) was introduced in New Zealand. This system was designed to give young drivers (i.e. 15–24 years inclusive) experience in driving while being excluded from high risk driving situations. We sought to determine the impact of the GDLS

John D. Langley; Alexander C. Wagenaar; Dorothy J. Begg

1996-01-01

21

Support Systems  

E-print Network

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

Wood, Jody

2009-04-28

22

Driver Distraction Detection with a Camera Vision System  

Microsoft Academic Search

Driver assistance systems and electronics (e.g. navigators, cell phones, etc.) steal increasing amounts of driver attention. Therefore, the vehicle industry is striving to build a driving environment where input-output devices are smartly scheduled, allowing sufficient time for the driver to focus attention on the surrounding traffic. To enable a smart human-machine interface (HMI), the driver's momentary state needs to be

Matti Kutila; Maria Jokela; Gustav Markkula; Maria Romera Rué

2007-01-01

23

Adaptation in hindsight: Dynamics and drivers shaping urban wastewater systems.  

PubMed

Well-planned urban infrastructure should meet critical loads during its design lifetime. In order to proceed with design, engineers are forced to make numerous assumptions with very little supporting information about the development of various drivers. For the wastewater sector, these drivers include the future amount and composition of the generated wastewater, effluent requirements, technologies, prices of inputs such as energy or chemicals, and the value of outputs produced such as nutrients for fertilizer use. When planning wastewater systems, there is a lack of methods to address discrepancies between the timescales at which fundamental changes in these drivers can occur, and the long physical life expectancy of infrastructure (on the order of 25-80 years). To explore these discrepancies, we take a hindsight perspective of the long-term development of wastewater infrastructure and assess the stability of assumptions made during previous designs. Repeatedly we find that the drivers influencing wastewater loads, environmental requirements or technological innovation can change at smaller timescales than the infrastructure design lifetime, often in less than a decade. Our analysis shows that i) built infrastructure is continuously confronted with challenges it was not conceived for, ii) significant adaptation occurs during a structure's lifetime, and iii) "muddling-through" is the pre-dominant strategy for adaptive management. As a consequence, we argue, there is a need to explore robust design strategies which require the systematic use of scenario planning methods and instruments to increase operational, structural, managerial, institutional and financial flexibility. Hindsight studies, such as this one, may inform the development of robust design strategies and assist in the transition to more explicit forms of adaptive management for urban infrastructures. PMID:25594746

Neumann, Marc B; Rieckermann, Jörg; Hug, Thomas; Gujer, Willi

2015-03-15

24

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

25

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

PubMed

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

Vadeby, Anna; Wiklund, Mats; Forward, Sonja

2011-05-01

26

Computer vision for driver assistance systems  

NASA Astrophysics Data System (ADS)

Systems for automated image analysis are useful for a variety of tasks and their importance is still increasing due to technological advances and an increase of social acceptance. Especially in the field of driver assistance systems the progress in science has reached a level of high performance. Fully or partly autonomously guided vehicles, particularly for road-based traffic, pose high demands on the development of reliable algorithms due to the conditions imposed by natural environments. At the Institut fur Neuroinformatik, methods for analyzing driving relevant scenes by computer vision are developed in cooperation with several partners from the automobile industry. We introduce a system which extracts the important information from an image taken by a CCD camera installed at the rear view mirror in a car. The approach consists of a sequential and a parallel sensor and information processing. Three main tasks namely the initial segmentation (object detection), the object tracking and the object classification are realized by integration in the sequential branch and by fusion in the parallel branch. The main gain of this approach is given by the integrative coupling of different algorithms providing partly redundant information.

Handmann, Uwe; Kalinke, Thomas; Tzomakas, Christos; Werner, Martin; von Seelen, Werner

1998-07-01

27

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

28

Device driver synthesis for embedded systems Julien Tanguy,  

E-print Network

Device driver synthesis for embedded systems Julien Tanguy, Jean-Luc B´echennec Mika¨el Briday S.ec-nantes.fr Abstract Currently the development of embedded software man- aging hardware devices that fulfills The development of device drivers in embedded sys- tems is a critical and error-prone task. Because a device

Paris-Sud XI, Université de

29

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

30

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. PMID:23851546

Yousefi, Vandad; Maslowski, Rafal

2013-01-01

31

Driver assistance systems aim to halve traffic accidents  

Microsoft Academic Search

Purpose – The purpose of this paper is to reveal how technology is being applied to augment drivers' skills and improve road safety throughout Europe. Design\\/methodology\\/approach – The paper begins with a description of the European Commission's car safety initiatives, and why they are necessary. Then three driver-assistance systems are examined in detail: adaptive cruise control, lane departure and lane-changing

Christine Connolly

2009-01-01

32

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

33

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

34

Ris Energy Report 5 Global drivers for transformation of energy systems 3 Global drivers for transformation of energy  

E-print Network

Risø Energy Report 5 Global drivers for transformation of energy systems 3 Global drivers for transformation of energy systems JOHN M. CHRIsTENsEN, RIsø NATIONAL LAbORATORy, DENMARk; MARk RADkA, UNEP, FRANCE supply and increased efficiency. The last couple of years have seen the increasing impor- tance

35

Video-based lane estimation and tracking for driver assistance: survey, system, and evaluation  

Microsoft Academic Search

Driver-assistance systems that monitor driver intent, warn drivers of lane departures, or assist in vehicle guidance are all being actively considered. It is therefore important to take a critical look at key aspects of these systems, one of which is lane-position tracking. It is for these driver-assistance objectives that motivate the development of the novel \\

Joel C. Mccall; Mohan M. Trivedi

2006-01-01

36

Development of Data Acquisition Card Driver for ICRH System on EAST  

NASA Astrophysics Data System (ADS)

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

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

2008-04-01

37

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

PubMed

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

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

2014-06-01

38

An innovative nonintrusive driver assistance system for vital signal monitoring.  

PubMed

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

Sun, Ye; Yu, Xiong Bill

2014-11-01

39

External Economic Drivers and U.S. Agricultural Production Systems  

Technology Transfer Automated Retrieval System (TEKTRAN)

U.S agriculture operates in a market driven economy. As with other businesses, agricultural producers respond to economic incentives and disincentives and make decisions to maximize their welfare. In this paper we examine external economic drivers that shape agricultural systems. Specifically, we c...

40

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

41

The New Zealand graduated driver licensing system: teenagers' attitudes towards and experiences with this car driver licensing system  

Microsoft Academic Search

OBJECTIVES: This study examined the attitudes of teenagers towards the New Zealand graduated driver licensing system (GDLS), and the extent to which it affected them. METHOD: Teenagers, who are members of a longitudinal study of a birth cohort, were interviewed at 15 years of age when the GDLS was first introduced and before they had begun licensure, and again at

D. J. Begg; J. D. Langley; A. I. Reeder; D. J. Chalmers

1995-01-01

42

78 FR 68475 - Certain Vision-Based Driver Assistance System Cameras and Components Thereof; Institution of...  

Federal Register 2010, 2011, 2012, 2013, 2014

...Vision-Based Driver Assistance System Cameras and Components Thereof; Institution...vision-based driver assistance system cameras and components thereof by reason...therein, is available for inspection during official business hours...vision-based driver assistance system cameras and components thereof by...

2013-11-14

43

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

44

DAISY, an adaptive, knowledge-based driver monitoring and warning system  

Microsoft Academic Search

DAISY (Driver Assisting System) has been developed as a monitoring and warning aid for the driver in longitudinal and lateral control on German motorways. This development was part of the PROMETHEUS project. The warning messages are generated and initiated on the basis of comprehensive system knowledge about the driving situation including the behavioural state and the condition of the driver.

Reiner Onken; Universitst der Bundeswehr Munchen

1994-01-01

45

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

46

Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//freeelectrons.com The Unix and GNU/Linux command line  

E-print Network

1 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support;4 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http, iterations...) #12;8 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training

Sendag, Resit

47

Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support. http//freeelectrons.com The Unix and GNU/Linux command line  

E-print Network

1 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support described later! #12;6 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training #12;7 Free Electrons. Kernel, drivers and embedded Linux development, consulting, training and support

Sendag, Resit

48

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

Microsoft Academic Search

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

E. Hato; M. Taniguchi

1994-01-01

49

The driver, the road, the rules … and the rest? A systems-based approach to young driver road safety.  

PubMed

The persistent overrepresentation of young drivers in road crashes is universally recognised. A multitude of factors influencing their behaviour and safety have been identified through methods including crash analyses, simulated and naturalistic driving studies, and self-report measures. Across the globe numerous, diverse, countermeasures have been implemented; the design of the vast majority of these has been informed by a driver-centric approach. An alternative approach gaining popularity in transport safety is the systems approach which considers not only the characteristics of the individual, but also the decisions and actions of other actors within the road transport system, along with the interactions amongst them. This paper argues that for substantial improvements to be made in young driver road safety, what has been learnt from driver-centric research needs to be integrated into a systems approach, thus providing a holistic appraisal of the young driver road safety problem. Only then will more effective opportunities and avenues for intervention be realised. PMID:24602807

Scott-Parker, B; Goode, N; Salmon, P

2015-01-01

50

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

51

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

52

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

53

Detector driver systems and photometric estimates for RIMAS  

NASA Astrophysics Data System (ADS)

The Rapid infrared IMAger-Spectrometer (RIMAS) is a rapid gamma-ray burst afterglow instrument that will provide photometric and spectroscopic coverage of the Y, J, H, and K bands. RIMAS separates light into two optical arms, YJ and HK, which allows for simultaneous coverage in two photometric bands. RIMAS utilizes two 2048 x 2048 pixel Teledyne HgCdTe (HAWAII-2RG) detectors along with a Spitzer Legacy Indium- Antimonide (InSb) guiding detector in spectroscopic mode to position and keep the source on the slit. We describe the software and hardware development for the detector driver and acquisition systems. The HAWAII- 2RG detectors simultaneously acquire images using Astronomical Research Cameras, Inc. driver, timing, and processing boards with two C++ wrappers running assembly code. The InSb detector clocking and acquisition system runs on a National Instruments cRIO-9074 with a Labview user interface and clocks written in an easily alterable ASCII file. We report the read noise, linearity, and dynamic range of our guide detector. Finally, we present RIMAS's estimated instrument efficiency in photometric imaging mode (for all three detectors) and expected limiting magnitudes. Our efficiency calculations include atmospheric transmission models, filter models, telescope components, and optics components for each optical arm.

Toy, Vicki L.; Kutyrev, Alexander S.; Lyness, Eric I.; Muench, Marius; Robinson, Frederick D.; Lotkin, Gennadiy N.; Capone, John I.; Veilleux, Sylvain; Moseley, Samuel H.; Gehrels, Neil A.; Vogel, Stuart N.

2014-07-01

54

HMI for elderly drivers in an off-vehicle parking assistance system  

Microsoft Academic Search

We have studied HMI for driving instructions for an off-vehicle parking assistance system and reported experiments for evaluating it by elderly driver. This paper proposes comprehensive human machine interfaces (HMI) between a communication-based guidance system and an elderly driver for providing vehicle control instructions, and describes the experimental studies performed for the system evaluation. We studied on three ways of

Naohisa Hashimoto; Shin Kato; Sadayuki Tsugawa

2008-01-01

55

ATE applied into fault modeling and fault diagnosis of AC servo motor PWM driver system  

Microsoft Academic Search

AC servo motor PWM driver system (including power module, power PWM driver board, cable, motor and photoelectric encoder\\/decoder) is a key sub-system of semiconductor assembly and packaging equipment. Aimed at its high fault rate, in this document we build the fault models of system based on PWM (Pulse Width Modulation) voltage, controller command and position feedback, find the test method

Li Baoan; Fan Ju; P. Liu Chou Kee

2005-01-01

56

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

57

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

58

Influence of system optimization considerations on LIA drivers  

SciTech Connect

The value of a systems and cost model lies in its capability to quickly evaluate plant cost and performance for various system/subsystem options an thus to assess the effect of potential design innovations and tradeoffs on the overall cost of electricity (COE). We have developed a Linear-Induction Accelerator driven Heavy-ion Fusion (LIA-HIF) Inertial Confinement Systems and Costing Model (ICCOMO) as part of the Heavy-ion Fusion Systems Assessment Project (HIFSA). This code has been used to evaluate various combinations of driver, cavity, and target design alternatives in conjunction with one another to determine the cost-sensitivity of different system options and to identify the most promising designs. The most significant results of these studies, to data, is the overall broadeness of the optimum region of parameter space. Changes in the performance of one system can generally be compensated for by another system, resulting in a minimal change in the final COE. This paper discusses the tradeoffs leading to this conclusion and their implications relative to LIA design.

Driemeyer, D.E.; Waganer, L.M.; Zuckerman, D.S.

1986-01-21

59

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

60

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 PMID:11245742

Hannerz, H; Tuchsen, F

2001-01-01

61

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...specifies requirements for steering control systems that will minimize chest,...

2010-10-01

62

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

Microsoft Academic Search

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

M. N. Lees; J. D. Lee

2007-01-01

63

What if it Suddenly Fails? Behavioral Aspects of Advanced Driver Assistant Systems on the Example of  

E-print Network

What if it Suddenly Fails? Behavioral Aspects of Advanced Driver Assistant Systems on the Example and Tim Schwartz3 and Christian M¨uller1 Abstract. Many researchers argue, in assessing the benefits of Ad- vanced Driver Assistance Systems (ADAS) it has to be taken into account that any gains in terms

Theune, Mariët

64

Extraction of features from airborne Lidar and onboard image data for future driver assistance systems  

Microsoft Academic Search

Driver assistance system is currently an active research and development field for the general goal to provide useful information to drivers in order to reduce the number of injuries and fatalities in traffic. One important component of future systems will be an accurate and reliable positioning, which can be realized by relative measurement, using onboard sensors and maps of the

Huiying Li; Zhi Wang; Shengbo Chen; Wenhui Li

2010-01-01

65

Driver assistance system for lane detection and vehicle recognition with night vision  

Microsoft Academic Search

The objective of this research is to develop a vision-based driver assistance system to enhance the driver's safety in the nighttime. The proposed system performs both lane detection and vehicle recognition. In lane detection, three features including lane markers, brightness, slenderness and proximity are applied to detect the positions of lane markers in the image. On the other hand, vehicle

Chun-Che Wang; Shih-Shinh Huang; Li-Chen Fu

2005-01-01

66

Advanced Life Support Systems  

NASA Technical Reports Server (NTRS)

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

Barta, Daniel J.

2004-01-01

67

Effects of automobile steering characteristics on driver vehicle system dynamics in regulation tasks  

NASA Technical Reports Server (NTRS)

A regulation task which subjected the automobile to a random gust disturbance which is countered by driver control action is used to study the effects of various automobile steering characteristics on the driver/vehicle system. The experiments used a variable stability automobile specially configured to permit insertion of the simulated gust disturbance and the measurement of the driver/vehicle system characteristics. Driver/vehicle system dynamics were measured and interpreted as an effective open loop system describing function. Objective measures of system bandwidth, stability, and time delays were deduced and compared. These objective measures were supplemented by driver ratings. A tentative optimum range of vehicle dynamics for the directional regulation task was established.

Mcruer, D. T.; Klein, R.

1975-01-01

68

Negotiation support systems  

Microsoft Academic Search

Negotiation support systems (NSS) are designed to assist negotiators in reaching mutually satisfactory decisions by providing a means of communication and through analysis of available information. The purpose of this minitrack is to provide a forum for the interchange of ideas, research results, development activities, and applications among academicians and practitioners in the NSS field. Since 1991, this minitrack has

Tung Bui; M. F. Shakun

2003-01-01

69

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

Technology Transfer Automated Retrieval System (TEKTRAN)

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

70

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

71

Effect of pattern recognition features on detection for driver's cognitive distraction  

Microsoft Academic Search

Constituent technology of a driver monitor system using information of a driver's psychosomatic states is expected to create driver's states adaptive drive supporting system for the reduction of traffic accidents. In this study we identified a driver's distraction as one of major psychosomatic states which may result in a traffic accident by using Internet based survey on a questionnaire basis.

Masahiro MIYAJI; Haruki KAWANAKA; Koji OGURI

2010-01-01

72

Ultra-low-power multiplexed electronic driver for high resolution deformable mirror systems  

E-print Network

Ultra-low-power multiplexed electronic driver for high resolution deformable mirror systems Mark N-voltage amplifier module drive the entire actuator array through a row- column addressing scheme. This approach reduces operational power consumption of a multiple-channel deformable- mirror driver by two orders

73

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

Microsoft Academic Search

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

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

2008-01-01

74

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

75

Alcohol Biomarkers as Tools to Guide and Support Decisions About Intoxicated Driver Risk  

Microsoft Academic Search

Objectives: This article describes the results of a pilot study that used alcohol biomarkers to guide decisions about driving under the influence (DUI) driver risk in the United States, replicating a European best practices model. The pilot tested whether biomarkers (1) can help the assessor identify high-risk drivers who continue to drink heavily after their arrest and (2) detect relapses

Pamela Bean; Claudia Roska; James Harasymiw; James Pearson; Brian Kay; Hannah Louks

2009-01-01

76

Inference of large truck driver's intent to change lanes to pass a lead vehicle via analyses of driver's eye glance behavior in the real world  

Microsoft Academic Search

Inference of driver's intent is a vital issue for developing intelligent driving support systems. In this study, we analyzed two professional truck drivers' eye glance behavior when they changed lanes in the real world and developed a method to detect the driver's intent to change lanes. The method was effective detecting the drivers' intent just before they initiated a lane

Makoto Itoh; Kenji Yoshimura; Toshiyuki Inagaki

2007-01-01

77

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

78

Permanent circulatory support systems at the Pennsylvania State University.  

PubMed

Permanent circulatory support systems are required for patients in whom myocardial damage is irreversible and cardiac transplantation is not possible. Two systems are described which provide long term circulatory support: 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 in the total artificial heart. Other parts of the system include an intra-thoracic compliance chamber, transcutaneous energy and data transmission system, and internal and external batteries. PMID:2312138

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

1990-02-01

79

Dingo: taming device drivers  

Microsoft Academic Search

Device drivers are notorious for being a major source of failure in operating systems. In analysing a sample of real defects in Linux drivers, we found that a large propor- tion (39%) of bugs are due to two key shortcomings in the device-driver architecture enforced by current operat ing systems: poorly-defined communication protocols between drivers and the OS, which confuse

Leonid Ryzhyk; Peter Chubb; Ihor Kuz; Gernot Heiser

2009-01-01

80

Child Safety Driver Assistant System and its Acceptance  

Microsoft Academic Search

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

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

2009-01-01

81

Cost/performance analysis of an induction linac driver system for inertial fusion  

SciTech Connect

A linear induction accelerator that produces a beam of energetic (approx. =10 GeV) heavy (CAapprox.200) ions is a prime candidate as a driver for inertial fusion. Continuing developments in amorphous iron for use in accelerating modules represent a potentially large reduction in the driver cost and an increase in the driver efficiency. Additional insulator developments may also represent a potentially large reduction in the driver cost. The efficiency and cost of the induction linac system is discussed as a function of output energy and pulse repetition frequency for several beam charge states, numbers of beams and beam particle species. Accelerating modules and transport modules will be described. Large cost leverage items will be identified as a guide to future research activities and technology of development that can yield further substantial reductions in the accelerator system cost and improvement in the accelerator system efficiency. 13 refs., 2 figs.

Hovingh, J.; Brady, V.O.; Faltens, A.; Hoyer, E.H.; Lee, E.P.

1985-11-01

82

Driver Behavioral Changes through Interactions with an Automatic Brake System for Collision Avoidance  

NASA Astrophysics Data System (ADS)

This paper discusses driver's behavioral changes as a result of driver's use of an automatic brake system for preventing a rear-end collision from occurring. Three types of automatic brake systems are investigated in this study. Type 1 brake system applies a strong automatic brake when a collision is very imminent. Type 2 brake system initiates brake operation softly when a rear-end crash may be anticipated. Types 1 and 2 are for avoidance of a collision. Type 3 brake system, on the other hand, applies a strong automatic brake to reduce the damage when a collision can not be avoided. An experiment was conducted with a driving simulator in order to analyze the driver's possible behavioral changes. The results showed that the time headway (THW) during car following phase was reduced by use of an automatic brake system of any type. The inverse of time to collision (TTC), which is an index of the driver's brake timing, increased by use of Type 1 brake system when the deceleration rate of the lead vehicle was relatively low. However, the brake timing did not change when the drivers used Type 2 or 3 brake system. As a whole, dangerous behavioral changes, such as overreliance on a brake system, were not observed for either type of brake system.

Itoh, Makoto; Fujiwara, Yusuke; Inagaki, Toshiyuki

83

New Driver Laser System for Double Target X-Ray Lasers at JAEA  

NASA Astrophysics Data System (ADS)

We have developed a new driver laser system with repetition rate of 0.1 Hz for the double target x-ray laser at Japan Atomic Energy Agency. We named the new driver laser TOPAZ. TOPAZ delivers two beams with energy of < 5 J and duration of ˜ ps. Ni-like Mo and Ag lasers at wavelength of 18.9 nm and 13.9 nm respectively have been successfully generated using TOPAZ

Ochi, Y.; Hasegawa, N.; Kawachi, T.; Nishikino, M.; Tanaka, M.; Kishimoto, M.; Ohba, T.

84

PORTLAND STATE UNIVERSITY Driver Registration Oregon University Systems Administrative Rule 580-040-0030 requires that  

E-print Network

(Check One): Driver Moped Driver/Motorcycle Driver/Chauffeur Driver/Chauffeur/Motorcycle List any driving, and others; 2. Felony revocation of driving privileges or felony or misdemeanor driver license suspension

Caughman, John

85

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

86

A Smartphone-Based Driver Safety Monitoring System Using Data Fusion  

PubMed Central

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

87

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

88

Clarke Stations and mercurian mass-drivers: energy for large-scale transportation systems  

Microsoft Academic Search

Three-week voyages across 1 AU could be made in large sailing craft propelled by microwaves generated at power stations operating at 0.1 AU from the sun. The power stations could be built of mercurian materials launched by mass driver to building sites in solar orbit. A Clarke Station 28 km in radius could generate 64 TW of microwaves and support

1985-01-01

89

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

E-print Network

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

Na, Xiaoxiang; Cole, David J.

2014-11-10

90

Is More Better? — Night Vision Enhancement System’s Pedestrian Warning Modes and Older Drivers  

PubMed Central

Pedestrian fatalities as a result of vehicle collisions are much more likely to happen at night than during day time. Poor visibility due to darkness is believed to be one of the causes for the higher vehicle collision rate at night. Existing studies have shown that night vision enhancement systems (NVES) may improve recognition distance, but may increase drivers’ workload. The use of automatic warnings (AW) may help minimize workload, improve performance, and increase safety. In this study, we used a driving simulator to examine performance differences of a NVES with six different configurations of warning cues, including: visual, auditory, tactile, auditory and visual, tactile and visual, and no warning. Older drivers between the ages of 65 and 74 participated in the study. An analysis based on the distance to pedestrian threat at the onset of braking response revealed that tactile and auditory warnings performed the best, while visual warnings performed the worst. When tactile or auditory warnings were presented in combination with visual warning, their effectiveness decreased. This result demonstrated that, contrary to general sense regarding warning systems, multi-modal warnings involving visual cues degraded the effectiveness of NVES for older drivers. PMID:21050616

Brown, Timothy; He, Yefei; Roe, Cheryl; Schnell, Thomas

2010-01-01

91

Issues in the Evaluation of Driver Distraction Associated with In-Vehicle Information and Telecommunications Systems  

Microsoft Academic Search

The evaluation of in-vehicle information and telecommunications systems from the standpoint of driver distraction is of great importance to highway safety and the successful deployment of the Intelligent Transportation Systems (ITS) initiative. In this paper, several issues are discussed that bear upon the evaluation of distraction associated with such systems are discussed. The range of distraction phenomena that should be

Louis Tijerina

92

How countries link REDD+ interventions to drivers in their readiness plans: implications for monitoring systems  

NASA Astrophysics Data System (ADS)

Countries participating in the REDD+ scheme are in the readiness phase, designing policy interventions to address drivers of deforestation and forest degradation (DD). In order for REDD+ interventions to be effective, it is essential that they take into account the specific drivers that they aim to address. Moreover it is crucial to design systems that monitor the effectiveness of the planned interventions. In this article we provide a comprehensive and comparative assessment of interventions proposed by 43 REDD+ countries in 98 readiness documents. We summarize the types of interventions and assess if they are formulated referring to the drivers of DD that they are aiming to address. Based on this assessment we consider the implications for systems for monitoring effectiveness of proposed interventions. Most countries reviewed link proposed interventions to specific drivers of DD. The majority of the countries making this link have better driver data quality, in particularly those that present their data in ratio or ordinal terms. Proposed interventions focus not only on activities to reduce deforestation, but also on other forest related REDD+ activities such as sustainable forest management, which reduce forest degradation and enhance forest stocks. Moreover, driver-specific interventions often relate to drivers not only inside but also outside the forest sector. Hence we suggest that monitoring systems need to assess not only deforestation rates through remote sensing, but also degradation and other carbon stock changes within the forest, using more detailed ground level surveys and measurements. In addition, the performance of interventions outside the forest need to be monitored, even if the impacts of these cannot be linked to specific changes in forest carbon stock in specific locations.

Salvini, G.; Herold, M.; De Sy, V.; Kissinger, G.; Brockhaus, M.; Skutsch, M.

2014-07-01

93

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

94

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

95

A fuel economy optimization system with applications in vehicles with human drivers and autonomous vehicles  

E-print Network

A fuel economy optimization system with applications in vehicles with human drivers and autonomous University of New York, Buffalo, USA a r t i c l e i n f o Keywords: Vehicle fuel economy Eco-driving Human developed and validated a new fuel-economy optimization system (FEOS), which receives input from vehicle

Wu, Changxu (Sean)

96

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

97

Grasp hand approach to detect the attentiveness and fatigue of driver via vibration system  

Microsoft Academic Search

The main purpose of this project is to produce a safety system especially for fatigue and sleepy car driver so as to prevent from accidents. These systems encompassed the approach of hand pressure applied on the steering wheel. The steering will be installed with pressure sensors. At the same time these sensors can be used to measure gripping force while

H. A. Rahim; Z. M. Yusop; S. D. Bin Syed Hassan; Chia Kim Seng

2010-01-01

98

Interactive Clothes Design Support System  

Microsoft Academic Search

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

Yuki Ogata; Takehisa Onisawa

2007-01-01

99

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

NASA Astrophysics Data System (ADS)

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

Zibell, A.

2014-01-01

100

Multicriteria Decision Support System MOLIP Vassil Vassilev*  

E-print Network

3 Multicriteria Decision Support System MOLIP Vassil Vassilev* , Boris Staykov** , Filip Andonov, Department of Computer Science Abstract: The paper discusses a multicriteria decision support system, called, multicriteria decision support systems, inter- active algorithms. 1. Introduction The decision support systems

Borissova, Daniela

101

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

102

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

103

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

104

Drivers Impacting the Adoption of Sustainable Agricultural Management Practices and Production Systems of the Northeast and Southeast United States  

Microsoft Academic Search

Agricultural production responds to social, political, economic, environmental, and technological drivers that influence producers' decisions and shape the individual systems through modification of management practices, crop and livestock mix, and marketing strategy. We use an interview and discussion approach with producer panels to examine production systems in the eastern United States and explore key drivers impacting their unique characteristics and

G. F. Sassenrath; J. M. Halloran; D. Archer; R. L. Raper; J. Hendrickson; P. Vadas; J. Hanson

2010-01-01

105

CloudBridge: A Cloud-Powered System Enabling Mobile Devices to Control Peripherals Without Drivers  

E-print Network

CloudBridge: A Cloud-Powered System Enabling Mobile Devices to Control Peripherals Without Drivers on the other. Through the bridge, it is possible to issue operations from a smart device without having) including desktop, laptop, and netbook. While the market for smart devices is growing dramatically

Young, R. Michael

106

THE DRIVER MACHINE INTERFACE: A SAFE CRITICAL APPLICATION FOR ON-BOARD ERTMS RAILWAY CONTROL SYSTEMS  

Microsoft Academic Search

In this paper, the developing design issues of the Ansaldo Segnalamento Ferroviario (ASF) Driver Machine Interface (DMI) for on-board ERTMS sub-systems are discussed. The main DMI functional and not functional requirements such as reliability, availability, maintainability, predictability, and safety are presented. Furthermore, the ASF methods used to meet DMI requirements are described; such methods are based on a combined utilization

Anna Salzo; Danilo Iovino; Diego Ribotta; Salvatore Sabina

2005-01-01

107

Factors correlated with traffic accidents as a basis for evaluating Advanced Driver Assistance Systems  

Microsoft Academic Search

This study aims to identify factors which influence and cause errors in traffic accidents and to use these as a basis for information to guide the application and design of driver assistance systems. A total of 474 accidents were examined in depth for this study by means of a psychological survey, data from accident reports, and technical reconstruction information. An

Maria Staubach

2009-01-01

108

Social Decision Support Systems (SDSS)  

Microsoft Academic Search

This paper proposes a new type of Information\\/Communication system or Inquiry System to support the investigation by large groups (e.g. thousands of people) of complex topics about which many diverse and opposing views are held. The objective of this system is the production, integration, and synthesis of diverse views in a manner in which: a) all participants can come to

Murray Turoff; Starr Roxanne Hiltz; Hee-kyung Cho; Zheng Li; Yuanqiong Wang

2002-01-01

109

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

SciTech Connect

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

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

2000-09-15

110

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

111

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

112

ENHANCED SEAT BELT REMINDER SYSTEMS FOR TEENAGE DRIVERS AND PASSENGERS  

Microsoft Academic Search

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

Neil Lerner; Jeremiah Singer; Mark Freedman

113

Emergence of multiple ocean ecosystem drivers in a large ensemble suite with an earth system model  

NASA Astrophysics Data System (ADS)

Marine ecosystems are increasingly impacted by human-induced changes. Ocean ecosystem drivers - including warming, acidification, deoxygenation and perturbations to biological productivity - can co-occur in space and time, but detecting their trends is complicated by the presence of noise associated with natural variability in the climate system. Here we use Large Initial-Condition Ensemble Simulations with a comprehensive Earth System Model under a historical/RCP8.5 pathway over 1950-2100 to consider emergence characteristics for the four individual and combined drivers. Using a one-standard deviation (67% confidence) threshold of signal-to-noise to define emergence with a 30 yr trend window, we show that ocean acidification emerges much earlier than other drivers, namely during the 20th century over most of the global ocean. For biological productivity, the anthropogenic signal does not emerge from the noise over most of the global ocean before the end of the 21st century. The early emergence pattern for sea surface temperature in low latitudes is reversed from that of subsurface oxygen inventories, where emergence occurs earlier in the Southern Ocean. For the combined multiple-driver field, 41% of the global ocean exhibits emergence for the 2005-2014 period, and 63% for the 2075-2084 period. The combined multiple-driver field reveals emergence patterns by the end of this century that are relatively high over much of the Southern Ocean, North Pacific, and Atlantic, but relatively low over the tropics and the South Pacific. In regions with pronounced emergence characteristics, marine ecosystems can be expected to be pushed outside of their comfort zone determined by the degree of natural background variability to which they are adapted. The results here thus have implications not only for optimization of the ocean observing system, but also for risk assessment and mitigation strategies.

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

2014-12-01

114

Supporting Privacy in RFID Systems  

E-print Network

on its supply chain management (SCM) one of US's largest chain of supermarkets, Wal-Mart, on June 11Supporting Privacy in RFID Systems Thomas Hjorth Supervisor: Christian D Jensen Supervisor: Jan is the objective of this report. At present the main problem regarding encryption in RFID systems

115

Supporting Privacy in RFID Systems  

E-print Network

To improve on its supply chain management (SCM) one of US's largest chain of supermarkets, Wal­Mart, on JuneSupporting Privacy in RFID Systems Thomas Hjorth Supervisor: Christian D Jensen Supervisor: Jan encryption in RFID systems is not the strength of the algorithms, but due to constraints whether

116

Correctness Proofs for Device Drivers in Embedded Systems Jianjun Duan  

E-print Network

that may be thousands of lines; we intend to integrate our manual proofs about bottom-level routines. For example, an auto- motive brake-by-wire system might be required to begin brake drum actuation within 50 ms of receiving a brake pedal input. Let's look at a more detailed example: a hypothetical embedded system

Regehr, John

117

Cell phone communication and driver visual behavior: the impact of cognitive distraction  

Microsoft Academic Search

With the advent of new technology in vehicles, drivers can access information in many different forms (email, address books, Web pages) and from many information sources (cell phones, PDAs, driver support systems). With these new information sources finding their way into cars comes increasing concern about the potential adverse effects resulting from drivers' interactions with such multi-function devices. This paper

Patricia Trbovich; Joanne L. Harbluk

2003-01-01

118

[Remote radiation planning support system].  

PubMed

We constructed a remote radiation planning support system between Kyushu University Hospital (KUH) in Fukuoka and Kyushu University Beppu Hospital (KBH) in Oita. Between two institutions, radiology information system for radiotherapy division (RT-RIS) and radiation planning system (RTPS) were connected by virtual private network (VPN). This system enables the radiation oncologists at KUH to perform radiotherapy planning for the patients at KBH. The detail of the remote radiation planning support system in our institutions is as follows: The radiation oncologist at KBH performs radiotherapy planning and the data of the patients are sent anonymously to the radiation oncologists at KUH. The radiation oncologists at KUH receive the patient's data, access to RTPS at KBH, verify or change the radiation planning at KBH: Radiation therapy is performed at KBH according to the confirmed plan by the radiation oncologists at KUH. Our remote radiation planning system is useful for providing radiation therapy with safety and accuracy. PMID:23157128

Atsumi, Kazushige; Nakamura, Katsumasa; Yoshidome, Satoshi; Shioyama, Yoshiyuki; Sasaki, Tomonari; Ohga, Saiji; Yoshitake, Tadamasa; Shinoto, Makoto; Asai, Kaori; Sakamoto, Katsumi; Hirakawa, Masakazu; Honda, Hiroshi

2012-08-01

119

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

SciTech Connect

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

Schraml, S.J.

1991-03-01

120

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

121

Domain Drivers in the Modularization of FLOSS Systems  

NASA Astrophysics Data System (ADS)

The classification of software systems into types has been achieved in the past by observing both their specifications and behavioral patterns: the SPE classification, for instance, and its further supplements and refinements, has identified the S-type (i.e., fully specified), the P-type (i.e., specified but dependent on the context) and the E-type (i.e., addressing evolving problems) among the software systems.

Capiluppi, Andrea

122

Collaboration and Human Factor as Drivers for Reputation System Effectiveness  

NASA Astrophysics Data System (ADS)

Reputation management is about evaluating an agent's actions and other agents' opinions about those actions, reporting on those actions and opinions, and reacting to that report thus creating a feedback loop. This social mechanism has been successfully used, through Reputation Management Systems (RMSs) to classify agents within normative systems. Most RMSs rely on the feedbacks given by the member of the social network in which the RMS itself operates. In this way, the reputation index can be seen as an endogenous and self produced indicator, created by the users for the users' benefit. This implies that users' participation and collaboration is a key factor for the effectiveness a RMS. In this work the above factor is explored by means of an agent based simulation, and is tested on a P2P network for file sharing.

Boella, Guido; Remondino, Marco

123

Development of advanced driver assistance systems with vehicle hardware-in-the-loop simulations  

Microsoft Academic Search

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

Olaf Gietelink; Jeroen Ploeg; Bart De Schutter; Michel Verhaegen

2006-01-01

124

Why differentiating between health system support and health system strengthening is needed  

PubMed Central

There is increasing recognition that efforts to improve global health cannot be achieved without stronger health systems. Interpretation of health system strengthening (HSS) has varied widely however, with much of the focus to-date on alleviating input constraints, whereas less attention has been given to other performance drivers. It is important to distinguish activities that support the health system, from ones that strengthen the health system. Supporting the health system can include any activity that improves services, from distributing mosquito nets to procuring medicines. These activities improve outcomes primarily by increasing inputs. Strengthening the health system is accomplished by more comprehensive changes to performance drivers such as policies and regulations, organizational structures, and relationships across the health system to motivate changes in behavior and/or allow more effective use of resources to improve multiple health services. Even organizations that have made significant investments in health systems have not provided guidance on what HSS entails. While both supporting and strengthening are important and necessary, it is nonetheless important to make a distinction. If activities fail to produce improvements in system performance because they were incorrectly labeled as system strengthening, the value of HSS investments could quickly be discredited. Not distinguishing supportive activities from strengthening ones will lead to unmet expectations of stronger health systems, as well as neglect of critical system strengthening activities. Distinguishing between these two types of activities will improve programming impact. Copyright © 2012 John Wiley & Sons, Ltd. PMID:22777839

Chee, Grace; Pielemeier, Nancy; Lion, Ann; Connor, Catherine

2013-01-01

125

Decision Support Systems in Libraries.  

ERIC Educational Resources Information Center

Following a review of the contributions of computers and managerial science/operations research to the management of libraries, this paper introduces the concept of decision support systems. DSS, a blending of these techniques, can lead to more effective decisions by library managers. A case study of the utilization of a DSS in the budgeting…

Heindel, Allan; Napier, H. Albert

126

ELECTRICAL SUPPORT SYSTEM DESCRIPTION DOCUMENT  

SciTech Connect

The purpose of this revision of the System Design Description (SDD) is to establish requirements that drive the design of the electrical support system and their bases to allow the design effort to proceed to License Application. This SDD is a living document that will be revised at strategic points as the design matures over time. This SDD identifies the requirements and describes the system design as they exist at this time, with emphasis on those attributes of the design provided to meet the requirements. This SDD has been developed to be an engineering tool for design control. Accordingly, the primary audience/users are design engineers. This type of SDD both ''leads'' and ''trails'' the design process. It leads the design process with regard to the flow down of upper tier requirements onto the system. Knowledge of these requirements is essential in performing the design process. The SDD trails the design with regard to the description of the system. The description provided in the SDD is a reflection of the results of the design process to date. Functional and operational requirements applicable to electrical support systems are obtained from the ''Project Functional and Operational Requirements'' (F&OR) (Siddoway 2003). Other requirements to support the design process have been taken from higher-level requirements documents such as the ''Project Design Criteria Document'' (PDC) (Doraswamy 2004), and fire hazards analyses. The above-mentioned low-level documents address ''Project Requirements Document'' (PRD) (Canon and Leitner 2003) requirements. This SDD contains several appendices that include supporting information. Appendix B lists key system charts, diagrams, drawings, and lists, and Appendix C includes a list of system procedures.

S. Roy

2004-06-24

127

Software Metrics Decision Support System  

Microsoft Academic Search

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

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

1998-01-01

128

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. PMID:21325330

Heenan, Caragh B.; Seymour, Roger S.

2011-01-01

129

UK innovation systems for new and renewable energy technologies: drivers, barriers and systems failures  

Microsoft Academic Search

A better understanding of the systemic processes by which innovation occurs is useful, both conceptually and to inform policy-making in support of innovation in more sustainable technologies. This paper analyses current innovation systems in the UK for a range of new and renewable energy technologies, and generates policy recommendations for improving the effectiveness of these innovation systems. Although incentives are

T. J. Foxon; R. Gross; A. Chase; J. Howes; A. Arnall; D. Anderson

2005-01-01

130

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. PMID:20484382

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

2010-01-01

131

Solving the Train Driver Recovery Problem Extended Abstract  

E-print Network

, the prototype for the Train Driver Recovery Decision Support System is based on solving TDRP instances segments makes it difficult to find a good recovery solution fast. Drivers are in the worst case assigned the originally scheduled duties for the rest of the day. The railway crew disruption management has only received

132

Satellite operations support expert system  

NASA Technical Reports Server (NTRS)

The Satellite Operations Support Expert System is an effort to identify aspects of satellite ground support activity which could profitably be automated with artificial intelligence (AI) and to develop a feasibility demonstration for the automation of one such area. The hydrazine propulsion subsystems (HPS) of the International Sun Earth Explorer (ISEE) and the International Ultraviolet Explorer (IUS) were used as applications domains. A demonstration fault handling system was built. The system was written in Franz Lisp and is currently hosted on a VAX 11/750-11/780 family machine. The system allows the user to select which HPS (either from ISEE or IUE) is used. Then the user chooses the fault desired for the run. The demonstration system generates telemetry corresponding to the particular fault. The completely separate fault handling module then uses this telemetry to determine what and where the fault is and how to work around it. Graphics are used to depict the structure of the HPS, and the telemetry values displayed on the screen are continually updated. The capabilities of this system and its development cycle are described.

1985-01-01

133

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

NASA Technical Reports Server (NTRS)

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

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

1994-01-01

134

Cancer systems biology of TCGA SKCM: Efficient detection of genomic drivers in melanoma  

PubMed Central

We characterized the mutational landscape of human skin cutaneous melanoma (SKCM) using data obtained from The Cancer Genome Atlas (TCGA) project. We analyzed next-generation sequencing data of somatic copy number alterations and somatic mutations in 303 metastatic melanomas. We were able to confirm preeminent drivers of melanoma as well as identify new melanoma genes. The TCGA SKCM study confirmed a dominance of somatic BRAF mutations in 50% of patients. The mutational burden of melanoma patients is an order of magnitude higher than of other TCGA cohorts. A multi-step filter enriched somatic mutations while accounting for recurrence, conservation, and basal rate. Thus, this filter can serve as a paradigm for analysis of genome-wide next-generation sequencing data of large cohorts with a high mutational burden. Analysis of TCGA melanoma data using such a multi-step filter discovered novel and statistically significant potential melanoma driver genes. In the context of the Pan-Cancer study we report a detailed analysis of the mutational landscape of BRAF and other drivers across cancer tissues. Integrated analysis of somatic mutations, somatic copy number alterations, low pass copy numbers, and gene expression of the melanogenesis pathway shows coordination of proliferative events by Gs-protein and cyclin signaling at a systems level. PMID:25600636

Guan, Jian; Gupta, Rohit; Filipp, Fabian V.

2015-01-01

135

Cancer systems biology of TCGA SKCM: efficient detection of genomic drivers in melanoma.  

PubMed

We characterized the mutational landscape of human skin cutaneous melanoma (SKCM) using data obtained from The Cancer Genome Atlas (TCGA) project. We analyzed next-generation sequencing data of somatic copy number alterations and somatic mutations in 303 metastatic melanomas. We were able to confirm preeminent drivers of melanoma as well as identify new melanoma genes. The TCGA SKCM study confirmed a dominance of somatic BRAF mutations in 50% of patients. The mutational burden of melanoma patients is an order of magnitude higher than of other TCGA cohorts. A multi-step filter enriched somatic mutations while accounting for recurrence, conservation, and basal rate. Thus, this filter can serve as a paradigm for analysis of genome-wide next-generation sequencing data of large cohorts with a high mutational burden. Analysis of TCGA melanoma data using such a multi-step filter discovered novel and statistically significant potential melanoma driver genes. In the context of the Pan-Cancer study we report a detailed analysis of the mutational landscape of BRAF and other drivers across cancer tissues. Integrated analysis of somatic mutations, somatic copy number alterations, low pass copy numbers, and gene expression of the melanogenesis pathway shows coordination of proliferative events by Gs-protein and cyclin signaling at a systems level. PMID:25600636

Guan, Jian; Gupta, Rohit; Filipp, Fabian V

2015-01-01

136

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

137

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

138

Safe driving in a green world: a review of driver performance benchmarks and technologies to support 'smart' driving.  

PubMed

Road transport is a significant source of both safety and environmental concerns. With climate change and fuel prices increasingly prominent on social and political agendas, many drivers are turning their thoughts to fuel efficient or 'green' (i.e., environmentally friendly) driving practices. Many vehicle manufacturers are satisfying this demand by offering green driving feedback or advice tools. However, there is a legitimate concern regarding the effects of such devices on road safety--both from the point of view of change in driving styles, as well as potential distraction caused by the in-vehicle feedback. In this paper, we appraise the benchmarks for safe and green driving, concluding that whilst they largely overlap, there are some specific circumstances in which the goals are in conflict. We go on to review current and emerging in-vehicle information systems which purport to affect safe and/or green driving, and discuss some fundamental ergonomics principles for the design of such devices. The results of the review are being used in the Foot-LITE project, aimed at developing a system to encourage 'smart'--that is safe and green--driving. PMID:20863480

Young, Mark S; Birrell, Stewart A; Stanton, Neville A

2011-05-01

139

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

140

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

141

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

142

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. PMID:24800823

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

2014-01-01

143

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

144

Novel left ventricular assist systems I and II for cardiac recovery: the driver.  

PubMed

We have recently described the Novel Left Ventricular Assist Systems (Novel LVAS) I and II, which avoid cannulation of cardiac chambers and synchronize pumping with the patient's electrocardiogram. We now describe the drive system in more detail. The drive unit is an air-driven pulsatile system. The driver's parameters can be programmed. This electro-pneumatic unit contains 3 modules. A remarkable feature of the driver system is that it contains 2 pneumatic units that alternate in their function every 15 minutes. This prevents overheating and component fatigue or failure, and it enables the use of smaller units. If one of the units fails, an alarm will warn of the problem, and the other will continue indefinitely. This LVAS is synchronized with the patient's ECG, which enables it to eject the stroke volume during diastole and in this way to act as a chronic counterpulsator. We have designed the Novel LVAS to operate at a low-frequency rate. This fact, together with the electrocardiographic synchronization, offers the best prospect for myocardial recovery in patients who are also receiving beta-adrenergic blocking agents. This dual therapy will help adjust heart rate to pump frequency. PMID:16429898

Cervino, Claudio; Nasini, Victor; Sroka, Agnieszka; Diluch, Armando; Cáceres, Miguel; Sellanes, Miguel; Malusardi, Adriano; del Rio, Miquel; Pham, Si M; Liotta, Domingo

2005-01-01

145

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

146

Effect of selected in-vehicle route guidance systems on driver reaction times.  

PubMed

Experiments were conducted in a fixed-base, high-fidelity simulator to evaluate selected in-vehicle route guidance systems. Drivers navigated a simulated network using five route guidance systems: paper map, head-down turn-by-turn display, head-down electronic route map, head-up turn-by-turn display, and an audio guidance system. The primary measure of driving performance was the reaction time to a scanning task. Other measures included navigation errors, workload, and perception ratings. Censored regression models were developed to study the effect of route guidance type on reaction times. Results indicated that the drivers responded the fastest while using the audio system and the slowest while using the paper map. The head-up turn-by-turn display was associated with lower reaction times compared with an identically designed head-down turn-by-turn display. The head-down electronic map, despite its complexity, performed better than the head-down turn-by-turn display. PMID:9302888

Srinivasan, R; Jovanis, P P

1997-06-01

147

Integration of decision support systems to improve decision support performance  

Microsoft Academic Search

Decision support system (DSS) is a well-established research and development area. Traditional isolated, stand-alone DSS has been recently facing new challenges. In order to improve the performance of DSS to meet the challenges, research has been actively carried out to develop integrated decision support systems (IDSS). This paper reviews the current research efforts with regard to the development of IDSS.

Shaofeng Liu; Alex H. B. Duffy; Robert Ian Whitfield; Iain M. Boyle

2010-01-01

148

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

149

42 CFR 441.555 - Support system.  

Code of Federal Regulations, 2013 CFR

...provided. (2) The support activities must include...Choice services and supports. (x) Identifying and accessing services, supports, and resources. ...advocate or advocacy systems available in the State...or health-related decisions on behalf of the...

2013-10-01

150

42 CFR 441.555 - Support system.  

Code of Federal Regulations, 2014 CFR

...provided. (2) The support activities must include...Choice services and supports. (x) Identifying and accessing services, supports, and resources. ...advocate or advocacy systems available in the State...or health-related decisions on behalf of the...

2014-10-01

151

42 CFR 441.555 - Support system.  

Code of Federal Regulations, 2012 CFR

...provided. (2) The support activities must include...Choice services and supports. (x) Identifying and accessing services, supports, and resources. ...advocate or advocacy systems available in the State...or health-related decisions on behalf of the...

2012-10-01

152

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

153

GIS Based Decision Support Systems in Agriculture  

Microsoft Academic Search

Decision Support Systems (DSS) provide a framework for integrating database management systems, analytical models, and graphics, in order to improve decision-making process. The decision support system concept was extended to the spatial context by integrating GIS and DSS into spatial decision support systems (SDSS). Because of lack of computer software to develop user friendly interfaces in the past, GIS have

M. Narayana Reddy; N. H. Rao

154

Older Drivers  

MedlinePLUS

... Affects Driving Tips for Safe Driving Making Your Vehicle Safe Regulations Affecting Older Drivers When Driving Skills ... Like drivers of any age, they use their vehicles to go shopping, do errands, and visit the ...

155

Effects of automobile steering characteristics on driver/vehicle system performance in discrete maneuvers  

NASA Technical Reports Server (NTRS)

A series of discrete maneuver tasks were used to evaluate the effects of steering gain and directional mode dynamic parameters on driver/vehicle responses. The importance and ranking of these parameters were evaluated through changes in subjective driver ratings and performance measures obtained from transient maneuvers such as a double lane change, an emergency lane change, and an unexpected obstacle. The unexpected obstacle maneuver proved more sensitive to individual driver differences than to vehicle differences. Results were based on full scale tests with an experienced test driver evaluating many different dynamic configurations plus seventeen ordinary drivers evaluating six key configurations.

Klein, R. H.; Mcruer, D. T.

1975-01-01

156

Approaches to enhance driver situational assessment aids  

E-print Network

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

Jones, Eric M. (Eric Michael)

2007-01-01

157

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

158

Environmental control and life support system requirements and technology needs for advanced manned space missions  

NASA Technical Reports Server (NTRS)

NASA has completed an environmental control and life support system (ECLSS) technology R&D plan for advanced missions which gave attention to the drivers (crew size, mission duration, etc.) of a range of manned missions under consideration. Key planning guidelines encompassed a time horizon greater than 50 years, funding resource requirements, an evolutionary approach to goal definition, and the funding of more than one approach to satisfy a given perceived requirement. Attention was given to the ECLSS requirements of transportation and service vehicles, platforms, bases and settlements, ECLSS functions and average load requirements, unique drivers for various missions, and potentially exploitable commonalities among vehicles and habitats.

Powell, Ferolyn T.; Sedej, Melaine; Lin, Chin

1987-01-01

159

Anatomy of a Decision Support System.  

ERIC Educational Resources Information Center

The decision support system (DSS) environment, the functional requirements of a DSS, and the architectural requirements of the computer systems and communications network necessary to support a DSS are discussed. Changes in the computing environment that are necessary to implement decision support systems are suggested. (Author/MLW)

Chachra, Vinod; Heterick, Robert C.

1982-01-01

160

The Warning Decision Support System Integrated Information  

E-print Network

The Warning Decision Support System ­ Integrated Information Valliappa Lakshmanan1,2 , Travis Smith #12;Abstract The Warning Decision Support System ­ Integrated Information (WDSS-II) is the second Warning Decision Support System -- Integrated Information}, journal = {Weather and Forecasting}, year

Lakshmanan, Valliappa

161

Decision Support Systems Multiple Choice Structure  

E-print Network

Decision Support Systems With Multiple Choice Structure Ingo Alth¨ofer Friedrich the machines. ``Triple Brain'' is a ``Decision Support System with Multiple Choice Structure'': Com­ puter of Decision Support Systems with Multiple Choice Structure. Key Words and Phrases: Triple Brain, 3­Hirn

162

LICENTIATE THESIS A Decision Support System  

E-print Network

LICENTIATE THESIS A Decision Support System for Scheduling a Shop Floor Work Center MAGNUS as a decision support system in a shop floor work center, mainly in case of a production disturbance scheduling, Decision support system, Combi­ natorial optimization, Petri nets, Heuristic search. AMS 1991

Patriksson, Michael

163

Metric half-span model support system  

NASA Technical Reports Server (NTRS)

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

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

1982-01-01

164

A novel collinear optical system with annulus mirrors for holographic disc driver  

NASA Astrophysics Data System (ADS)

This paper focus on a novel collinear lens system with annulus mirrors for holographic disc driver, both information beam and reference beam are use same laser beam. The expanded and parallel laser beam, center part of it as the information beam then through Fourier transform lens, the beam around center part as a reference beam. On this axis, the ring reference beam reflected by two annulus shaped mirrors, then became a convergent beam, together with the information beam which through the first Fourier transform lens then produce holographic pattern to be write into the holographic disc behind of them, this lens system with two mirrors made the angle between information beam and reference beam more wide, can improved the multiplex level of holographic storage. Pair of Fourier transform lens with advance performance is designed in this paper.

Wang, Ye

2008-12-01

165

A preliminary study of MR sickness evaluation using visual motion aftereffect for advanced driver assistance systems.  

PubMed

Mixed Reality (MR) technologies have recently been explored in many areas of Human-Machine Interface (HMI) such as medicine, manufacturing, entertainment and education. However MR sickness, a kind of motion sickness is caused by sensory conflicts between the real world and virtual world. The purpose of this paper is to find out a new evaluation method of motion and MR sickness. This paper investigates a relationship between the whole-body vibration related to MR technologies and the motion aftereffect (MAE) phenomenon in the human visual system. This MR environment is modeled after advanced driver assistance systems in near-future vehicles. The seated subjects in the MR simulator were shaken in the pitch direction ranging from 0.1 to 2.0 Hz. Results show that MAE is useful for evaluation of MR sickness incidence. In addition, a method to reduce the MR sickness by auditory stimulation is proposed. PMID:18002636

Nakajima, Sawako; Ino, Shuichi; Ifukube, Tohru

2007-01-01

166

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

167

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

168

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

169

Professional Growth & Support System Self-Assessment  

ERIC Educational Resources Information Center

The "Professional Growth & Support System Self-Assessment" is designed to help school systems evaluate their current Professional Growth & Support strategy. The self-assessment is organized around the "Eight Principles of Strategic Professional Growth & Support." Each section allows school leaders to identify the…

Education Resource Strategies, 2013

2013-01-01

170

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 ...

171

Driver-Vehicle-Interface (DVI) Development of a Drowsy Driver Detection and Warning  

E-print Network

of combination-unit truck (CUT) crashes. Drowsy driver crashes cost $12 billion and contribute to up to 35% of the 4,400 annual truck driver deaths. Fatigued drivers are often unaware of their condition, frequentlyDriver-Vehicle-Interface (DVI) Development of a Drowsy Driver Detection and Warning System

Steinfeld, Aaron

172

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. PMID:20395588

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

2010-01-01

173

Reconfigurable Security Support for Embedded Systems  

E-print Network

Reconfigurable Security Support for Embedded Systems Guy Gogniat Laboratory LESTER University-9284 USA Email: burleson@ecs.umass.edu Abstract-- Embedded systems present significant security chal the efficiency of reconfigurable architecture to implement security primitives within embedded systems. We also

Paris-Sud XI, Université de

174

Data fusion to develop a driver drowsiness detection system with robustness to signal loss.  

PubMed

This study proposes a drowsiness detection approach based on the combination of several different detection methods, with robustness to the input signal loss. Hence, if one of the methods fails for any reason, the whole system continues to work properly. To choose correct combination of the available methods and to utilize the benefits of methods of different categories, an image processing-based technique as well as a method based on driver-vehicle interaction is used. In order to avoid driving distraction, any use of an intrusive method is prevented. A driving simulator is used to gather real data and then artificial neural networks are used in the structure of the designed system. Several tests were conducted on twelve volunteers while their sleeping situations during one day prior to the tests, were fully under control. Although the impact of the proposed system on the improvement of the detection accuracy is not remarkable, the results indicate the main advantages of the system are the reliability of the detections and robustness to the loss of the input signals. The high reliability of the drowsiness detection systems plays an important role to reduce drowsiness related road accidents and their associated costs. PMID:25256113

Samiee, Sajjad; Azadi, Shahram; Kazemi, Reza; Nahvi, Ali; Eichberger, Arno

2014-01-01

175

Data Fusion to Develop a Driver Drowsiness Detection System with Robustness to Signal Loss  

PubMed Central

This study proposes a drowsiness detection approach based on the combination of several different detection methods, with robustness to the input signal loss. Hence, if one of the methods fails for any reason, the whole system continues to work properly. To choose correct combination of the available methods and to utilize the benefits of methods of different categories, an image processing-based technique as well as a method based on driver-vehicle interaction is used. In order to avoid driving distraction, any use of an intrusive method is prevented. A driving simulator is used to gather real data and then artificial neural networks are used in the structure of the designed system. Several tests were conducted on twelve volunteers while their sleeping situations during one day prior to the tests, were fully under control. Although the impact of the proposed system on the improvement of the detection accuracy is not remarkable, the results indicate the main advantages of the system are the reliability of the detections and robustness to the loss of the input signals. The high reliability of the drowsiness detection systems plays an important role to reduce drowsiness related road accidents and their associated costs. PMID:25256113

Samiee, Sajjad; Azadi, Shahram; Kazemi, Reza; Nahvi, Ali; Eichberger, Arno

2014-01-01

176

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

177

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

178

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

179

The influence of driver distraction on the severity of injuries sustained by teenage drivers and their passengers.  

PubMed

Studies show that teenage drivers are at a higher risk for crashes. Opportunities to engage in technology and non-technology based distractions appear to be a particular concern among this age group. An ordered logit model was developed to predict the likelihood of a severe injury for these drivers and their passenger using a national crash database (the 2003, U.S. DOT-General Estimate System [GES]). As one would expect, speeding substantially increases the likelihood of severe injuries for teenage drivers and their passengers. The results of the analysis also reveal that teenage drivers have an increased likelihood of more severe injuries if distracted by a cell phone or by passengers than if the source of distraction was related to in-vehicle devices or if the driver was inattentive. Additionally, passengers of teenage drivers are more likely to sustain severe injuries when their driver is distracted by devices or passengers than with a non-distracted or inattentive driver. This supports the previous literature on teenage drivers and extends our understanding of injuries for this age group related to distraction-related crashes. PMID:18215556

Neyens, David M; Boyle, Linda Ng

2008-01-01

180

Operating System Support for Distributed Multimedia  

Microsoft Academic Search

Multimedia applications place new demands upon processors, networks and operating systems. While some network designers, through ATM for example, have considered revolutionary approaches to support- ing multimedia, the same cannot be said for operating systems designers. Most work is evolutionary in na- ture, attempting to identify additional features that can be added to existing systems to support multimedia. Here we

Sape J. Mullender; Ian M. Leslie; Derek Mcauley

1994-01-01

181

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

182

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

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

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

183

Supporting Multiple Cognitive Processing Styles Using Tailored Support Systems  

SciTech Connect

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

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

2007-08-01

184

Magnetic resonance elastography with a phased-array acoustic driver system.  

PubMed

Dynamic MR 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. PMID:19132758

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

2009-03-01

185

Drivers and Controls of the Zebra Mussel Invasion of the Mississippi-Missouri River System  

NASA Astrophysics Data System (ADS)

The zebra mussel Dreissena polymorpha has been haunting North American inland waters for the past twenty years. Due to the huge population densities reached by local colonies and the species' unparalleled dispersal ability, the zebra mussel represents a major threat from both an ecological and an economic perspective. We propose a novel ecohydrological model for the invasion of inland waters by this alien species and test it against field data gathered within the Mississippi-Missouri river system in North America. To incorporate both hydrologic controls and anthropogenic drivers of the invasion, the proposed multi-layer network model accounts explicitly for zebra mussel demographic dynamics, hydrologic transport and dispersal due to human activities. We show that hydrologic transport alone is not sufficient to explain the spread of the species at the basin scale. We also quantify the role played by commercial navigation in promoting the initial, selective colonization of the river system and show how recreational boating may have determined the capillary penetration of the species into the water system. The role of post-establishment dispersal mechanisms and the effectiveness of possible prevention measures are also discussed in the context of model sensitivity and robustness to reparameterization.

Casagrandi, R.; Mari, L.; Bertuzzo, E.; Gatto, M.; Levin, S. A.; Rodriguez-Iturbe, I.; Rinaldo, A.

2010-12-01

186

Human volunteer and anthropomorphic dummy tests of driver air cushion system.  

PubMed

The dynamic impact tests at Southwest Research Institute for the first time exposed human volunteers to production-like driver air cushion system depolyments at impact levels equivalent to a 30 mph barrier crash (48 kph). No significant injury was produced. At no time was it necessary for the secondary restraint systems to be utilized and the entire program schedule was carried out as planned. All tests were conducted under the most safe and controlled conditions possible, and typify only what the air cushions might accomplish in direct, head-on impacts up to 30 mph (48 kph). In comparing the test results, the anthropomorphic dummies' response to impact was conservative compared to the human volunteers. These and other human volunteer tests were run to help understand what might be expected in real world driving conditions. To further understand the value of this new safety system, 1000 1973 Chevrolets were built and places in a high mileage fleet across the couhtry. They now have accumulated 41 millions miles of experience and have had 15 accidents of sufficient severity that the air cushion depolyed. This fleet was followed with 1974 vehicles with air cushions sold to the general public as an option. These cars, combined with the test fleet, have accumulated approximately 60 million miles and have a total of 25 depolyments with 34 occupants in the front seat. There has been one fatality in accidents involving these vehicles, a seven week old baby boy. The child was not restrained in any protective carrier. All other injuries have been classified AIS-1 except for three AIS-2. Facial injuries have been very minimal and there have been no known hearing impairments as a result of these accident situations. To date, the results have been encouraging but caution must be taken in their interpretation. The population of drivers is not to be considered normal. The 60 million miles may appear to be a large number, but only represents 25 minutes of driving time of the total U.S. car population in 1 year. PMID:1116324

Smith, G R; Gulash, E C; Baker, R G

1975-01-01

187

Supporting human-intensive systems  

Microsoft Academic Search

Executing critical systems often rely on humans to make important and sometimes life-critical decisions. As such systems become more complex, the potential for human error to lead to system failures also increases. In the medical domain, for example, sophisticated technology has been introduced in the last decade without adequately considering the impact and role of the medical professionals. This is

Lori A. Clarke; Leon J. Osterweil; George S. Avrunin

2010-01-01

188

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

189

MEDIATOR: TOWARDS A NEGOTIATION SUPPORT SYSTEM  

Microsoft Academic Search

MEDIATOR is a negotiation support system (NSS) based onevolutionary systems design (ESD) and database-centered implementation.It supports negotiations by consensus seeking through exchange ofinformation and, where consensus is incomplete, by compromise. Thenegotiation problem is shown --graphically or as relational data inmatrix form-- in three spaces as a mapping from control space to goalspace (and through marginal utility functions) to utility space.

Matthias Jarke; M. Tawfik Jelassi; Melvin F. Shakun

1985-01-01

190

Decision Support Systems: The Need, The Challenge.  

ERIC Educational Resources Information Center

The evolution of decision support systems (DSS) has enabled computer and information technology to assist the management process of decision making. Decision support systems are designed to look forward in time, to forecast outcomes of uncertain events. A 70-item bibliography is included. (MLW)

Roberts, Michael M.

1982-01-01

191

Spatial decision support systems for vehicle routing  

Microsoft Academic Search

The vehicle routing field is a well-developed area of management science application. There is increasing recognition that effective decision-making in this field requires the incorporation of vehicle routing techniques into a decision support system (DSS). In order to provide decision support for a wide range of problems, routing techniques should be combined with systems that can take advantage of new

Peter B Keenan

1998-01-01

192

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

193

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

194

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

PubMed

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

Isler, Robert B; Starkey, Nicola J

2010-07-01

195

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

196

State Driver Information Name: ____________________________________________  

E-print Network

State Driver Information Name: ____________________________________________ Address: __________________________________________ City: ____________________ State: ______ Zip: _________ Phone #: ______________(Work: ______________________________________ Driver's License #: ________________________/ State: ____ Your Department

Rubloff, Gary W.

197

Advanced Group Support Systems and Facilities  

NASA Technical Reports Server (NTRS)

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

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

1999-01-01

198

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

E-print Network

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

Druzdzel, Marek J.

199

A DECISION SUPPORT SYSTEM (DSS) FOR STORMWATER MANAGEMENT SYSTEM SELECTION  

E-print Network

A DECISION SUPPORT SYSTEM (DSS) FOR STORMWATER MANAGEMENT SYSTEM SELECTION BY ANGIE SHELLEY MILES B ........................................................................ 1 1.2 Decision Support System (DSS and Ridgely Mauck for their interest, and support in this project. I would also like to acknowledge all those

200

Cryogenic support system for airborne superconducting generators  

Microsoft Academic Search

The paper describes a study underway to evaluate techniques and system designs for providing the cryogenic cooling to support an airborne superconducting generator system. Emphasis was placed on minimizing the weight of the airborne system and providing the most cost-effective approach for supplying the cryogenic cooling from the wellhead source to the aircraft. The most cost-effective system is one providing

P. J. Kerney; P. A. Lessard

1980-01-01

201

Integrated support systems for electric utility operations  

Microsoft Academic Search

An overview is given of tools and systems used to support power dispatch and other duties of the typical power system operations department. The major issues faced in systems integration are identified. The path taken by one company to integrate energy management systems (EMS), workstations, desktop computers, networks, and applications is described. The architecture presented allows the distribution of real-time

H. W. Hong; C. F. Imparato; D. L. Becker; J. H. Malinowski

1992-01-01

202

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

203

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

204

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

205

Feasibility of developing a portable driver performance data acquisition system for human factors research: Design specifications. Volume 3  

SciTech Connect

A two-phase, multi-year research program entitled ``development of a portable driver performance data acquisition system for human factors research was recently completed. The primary objective of the project was to develop a portable data acquisition system for crash avoidance research (DASCAR) that will allow driver performance data to be collected using a large variety of vehicle types and that would be capable of being installed on a given vehicle type within a relatively short-time frame. During Phase 1 a feasibility study for designing and fabricating DASCAR was conducted. In phase 2 of the research DASCAR was actually developed and validated. This technical memorandum documents the results from the feasibility study. It is subdivided into three volumes. Volume one addresses the last five items in the phase 1 research and the first issue in the second phase of the project. Volume 2 presents the related appendices. Volume three (this report) displays the design specifications developed for DASCAR during the ``develop design requirements and specifications for a portable driver performance data acquisition system`` task. Design specifications were assembled for each DASCAR element. The specifications were prepared in sufficient detail to allow a third party to use them to design, develop, procure, and subsequently construct the data acquisition system. This report also covers the background to the program.

Carter, R.J.; Barickman, F.S.

1998-01-01

206

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

207

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

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

Decision support system for container terminal planning  

Microsoft Academic Search

In this paper we describe a decision support system for capacity planning of container terminals. Typical elements of a container terminal are a quay, cranes, a stack yard and trucks for transport of containers between the quay and the stack yard and vice versa. For each of these elements we can devise models to describe the performance. The decision support

K. M. van Hee; R. J. Wijbrands

1988-01-01

210

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

211

Indonesian Earthquake Decision Support System  

E-print Network

Earthquake DSS is an information technology environment which can be used by government to sharpen, make faster and better the earthquake mitigation decision. Earthquake DSS can be delivered as E-government which is not only for government itself but in order to guarantee each citizen's rights for education, training and information about earthquake and how to overcome the earthquake. Knowledge can be managed for future use and would become mining by saving and maintain all the data and information about earthquake and earthquake mitigation in Indonesia. Using Web technology will enhance global access and easy to use. Datawarehouse as unNormalized database for multidimensional analysis will speed the query process and increase reports variation. Link with other Disaster DSS in one national disaster DSS, link with other government information system and international will enhance the knowledge and sharpen the reports.

Warnars, Spits

2010-01-01

212

A Decision Support System for Academic Scheduling.  

ERIC Educational Resources Information Center

Describes the use of a decision support system to operate on a database for academic scheduling. Discusses the scheduling environment, database subsystem, dialog subsystem, modeling subsystem, and output formats. (JM)

Burleson, Donald K.; Leivano, Rodrigo J.

1986-01-01

213

A Hyperknowledge Framework of Decision Support Systems.  

ERIC Educational Resources Information Center

Presents a hyperknowledge framework of decision support systems (DSS). This framework formalizes specifics about system functionality, representation of knowledge, navigation of the knowledge system, and user-interface traits as elements of a DSS environment that conforms closely to human cognitive processes in decision making. (Contains 52…

Chang, Ai-Mei; And Others

1994-01-01

214

Using and Evaluating Administrative Decision Support Systems.  

ERIC Educational Resources Information Center

Computer technology is rapidly being integrated into decision support systems that far surpass the potential of other information systems. To take advantage of this potential, the administrator must be able to evaluate these systems in terms that are relevant to the organization. (Author/MLW)

King, William R.

1981-01-01

215

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

216

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

217

Toward the Modularization of Decision Support Systems  

NASA Astrophysics Data System (ADS)

Decision support systems are typically developed entirely from scratch without the use of modular components. This “stovepiped” approach is inefficient and costly because it prevents a developer from leveraging the data, models, tools, and services of other developers. Even when a decision support component is made available, it is difficult to know what problem it solves, how it relates to other components, or even that the component exists, The Spatial Decision Support (SDS) Consortium was formed in 2008 to organize the body of knowledge in SDS within a common portal. The portal identifies the canonical steps in the decision process and enables decision support components to be registered, categorized, and searched. This presentation describes how a decision support system can be assembled from modular models, data, tools and services, based on the needs of the Earth science application.

Raskin, R. G.

2009-12-01

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

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

220

Addressing the sociotechnical drivers of quality improvement: a case study of post-operative DVT prophylaxis computerised decision support  

PubMed Central

Background Quality improvement (QI) initiatives characterised by iterative cycles of quantitative data analysis do not readily explain the organisational determinants of change. However, the integration of sociotechnical theory can inform more effective strategies. Our specific aims were to (1) describe a computerised decision support intervention intended to improve adherence with deep venous thrombosis (DVT) prophylaxis recommendations; and (2) show how sociotechnical theory expressed in ‘Fit between Individuals, Task and Technology’ framework (FITT) can identify and clarify the facilitators and barriers to QI work. Methods A multidisciplinary team developed and implemented electronic menus with DVT prophylaxis recommendations. Stakeholders were interviewed and human factors were analysed to optimise integration. Menu exposure, order placement and clinical performance were measured. Vista tool extraction and chart review were used. Performance compliance pre-implementation was 77%. Results There were 80–110 eligible cases per month. Initial menu use rate was 20%. After barriers were classified and addressed using the FITT framework, use improved 50% to 90%. Tasks, users and technology issues in the FITT model and their interfaces were identified and addressed. Workflow styles, concerns about validity of guidelines, cycle times and perceived ambiguity of risk were issues identified. Conclusions DVT prophylaxis in a surgical setting is fraught with socio-political agendas, cognitive dissonance and misaligned expectations. These must be sought and articulated if organisations are to respond to internal resistance to change. This case study demonstrates that QI teams using information technology must understand the clinical context, even in mature electronic health record environments, in order to implement sustainable systems. PMID:21209144

Yang, Jianji; McConnachie, Judy; Brenk, Thomas; Winterbottom, Lisa

2011-01-01

221

Graduated Driver Licensing  

PubMed Central

Graduated driver licensing (GDL) aims to gradually increase the exposure of new drivers to more complex driving situations and typically consists of learner, provisional and open licence phases. The first phase, the learner licence, is designed to allow novice drivers to obtain practical driving experience in lower risk situations. The learner licence can delay licensure, encourage novice drivers to learn under supervision, mandate the number of hours of practice required to progress to the next phase and encourage parental involvement. The second phase, the provisional licence, establishes various driving restrictions and thereby reduces exposure to situations of higher risk, such as driving at night, with passengers or after drinking alcohol. Parental involvement with a GDL system appears essential in helping novices obtain sufficient practice and in enforcing compliance with restrictions once the new driver obtains a provisional licence. Given the significant number of young drivers involved in crashes within Oman, GDL is one countermeasure that may be beneficial in reducing crash risk and involvement for this group. PMID:25364543

Bates, Lyndel J.; Allen, Siobhan; Armstrong, Kerry; Watson, Barry; King, Mark J.; Davey, Jeremy

2014-01-01

222

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

223

Improved gauge driver for the generalized harmonic Einstein system Lee Lindblom and Bela Szilagyi  

E-print Network

is introduced. The stability and effectiveness of this new gauge driver are demonstrated through numerical tests Latin letters from the beginning of the alphabet, a; b; c; . . . , for spacetime indices.) The GH form of Einstein's equations can be represented (somewhat ab- stractly) as c cd @c@dc ab þ @aHb þ @bHa ¼ QabðH; c

Lindblom, Lee

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

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

226

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

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 Psychological Approach to Decision Support Systems  

Microsoft Academic Search

Rapid advances in information technology have brought decision makers the mixed blessing of an increasingly vast amount of easily available data. Designers of decision support systems (DSS) have focused on incorporating the latest technology with little attention to whether these new systems are compatible with the psychology of decision makers. Our premise is that DSS should be designed to take

Stephen J. Hoch; David A. Schkade

1996-01-01

229

Decision Support Systems and Public Policy Analysis.  

ERIC Educational Resources Information Center

This article outlines an approach for developing and applying computerized decision support systems to the formulation and evaluation of public policy. To meet the challenge of financial resource limitations, new management systems must be developed to improve both governmental efficiency and decision-making effectiveness. (Author/BS)

Hall, Owen P., Jr.

1986-01-01

230

Knowledge architecture and system design for intelligent operation support systems  

Microsoft Academic Search

Intelligent operation support systems emerged from the complexity of modern industrial plants and the availability of inexpensive computer hardware. Modern industrial plants often collect vast amount of process data in distributed control systems and management information systems. Time stress due to data overload and decision uncertainty increases the risk of operator errors. Comprehensive operation support to the operator in abnormal

Q. Xia; M. Rao

1999-01-01

231

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

232

Organisational drivers for, constraints on and impacts of decision and information support tool use in desertification policy and management  

Microsoft Academic Search

Arguments for the potential benefits that environmental decision and information support tools (DISTs) bring to managing complex environmental issues like desertification are well rehearsed. However our empirical understanding of the reasons why particular DISTs are or are not used by different policy and management organisations, and the impacts they have on the work of those organisations is substantially weaker. Such

Esther Díez; Brian S. McIntosh

2011-01-01

233

Support systems of the orbiting quarantine facility  

NASA Astrophysics Data System (ADS)

The physical support systems, the personnel management structure, and the contingency systems necessary to permit the Orbiting Quarantine Facility (OQF) to function as an integrated system are described. The interactions between the subsystems within the preassembled modules are illustrated. The Power Module generates and distributes electrical power throughout each of the four modules, stabilizes the OQF's attitude, and dissipates heat generated throughout the system. The Habitation Module is a multifunctional structure designed to monitor and control all aspects of the system's activities. The Logistics Module stores the supplies needed for 30 days of operation and provides storage for waste materials generated during the mission. The Laboratory Module contains the equipment necessary for executing the protocol, as well as an independent life support system.

234

Dose calculation system for remotely supporting radiotherapy.  

PubMed

The dose calculation system IMAGINE is being developed keeping in mind remotely supporting external radiation therapy using photon beams. The system is expected to provide an accurate picture of the dose distribution in a patient body, using a Monte Carlo calculation that employs precise models of the patient body and irradiation head. The dose calculation will be performed utilising super-parallel computing at the dose calculation centre, which is equipped with the ITBL computer, and the calculated results will be transferred through a network. The system is intended to support the quality assurance of current, widely carried out radiotherapy and, further, to promote the prevalence of advanced radiotherapy. Prototypes of the modules constituting the system have already been constructed and used to obtain basic data that are necessary in order to decide on the concrete design of the system. The final system will be completed in 2007. PMID:16604625

Saito, K; Kunieda, E; Narita, Y; Kimura, H; Hirai, M; Deloar, H M; Kaneko, K; Ozaki, M; Fujisaki, T; Myojoyama, A; Saitoh, H

2005-01-01

235

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

236

Lunar Surface Systems Supportability Technology Development Roadmap  

NASA Technical Reports Server (NTRS)

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

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

2011-01-01

237

Automatic Calibration Method for Driver’s Head Orientation in Natural Driving Environment  

PubMed Central

Gaze tracking is crucial for studying driver’s attention, detecting fatigue, and improving driver assistance systems, but it is difficult in natural driving environments due to nonuniform and highly variable illumination and large head movements. Traditional calibrations that require subjects to follow calibrators are very cumbersome to be implemented in daily driving situations. A new automatic calibration method, based on a single camera for determining the head orientation and which utilizes the side mirrors, the rear-view mirror, the instrument board, and different zones in the windshield as calibration points, is presented in this paper. Supported by a self-learning algorithm, the system tracks the head and categorizes the head pose in 12 gaze zones based on facial features. The particle filter is used to estimate the head pose to obtain an accurate gaze zone by updating the calibration parameters. Experimental results show that, after several hours of driving, the automatic calibration method without driver’s corporation can achieve the same accuracy as a manual calibration method. The mean error of estimated eye gazes was less than 5°in day and night driving. PMID:24639620

Fu, Xianping; Guan, Xiao; Peli, Eli; Liu, Hongbo; Luo, Gang

2013-01-01

238

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

E-print Network

ELSEVIER Decision Support Systems 14 (1995) 369-391 Decion Support By m,q GENIE: A decision support situations. This paper demonstrates the ability of one such decision support system, GENIE, to help decision in an outcome in which one of the parties opts out of the negotiation. Keywords: Decision support systems

Kraus, Sarit

239

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

240

RT-WLAN: a soft real-time extension to ORiNOCO Linux device driver  

Microsoft Academic Search

The current IEEE 802.11 wireless LAN (WLAN) systems are unable to support real-time applications because the underlying contention-based MAC (medium access control) protocol causes unpredictable delays. In this paper, we present the implementation details of a new RT-WLAN device driver module, which extends the original Linux device driver for the popular Agere ORiNOCO cards to support soft real-time communications. To

Amit Jain; Daji Qiao; Kang G. Shin

2003-01-01

241

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

242

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)

1996-01-01

243

Using a group support system to implement Evolutionary Systems Design  

Microsoft Academic Search

Evolutionary Systems Design (ESD) is a modeling framework for such task-oriented group processes as group decision making, planning, policy making, and negotiation. To support these processes, a meeting script based on ESD is developed for MeetingWorkds™, a general purpose group support system (GSS).

L. Floyd Lewis; Melvin F. Shakun

1996-01-01

244

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. PMID:22736956

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

2012-01-01

245

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

246

Advanced Life Support System Value Metric  

NASA Technical Reports Server (NTRS)

The NASA Advanced Life Support (ALS) Program is required to provide a performance metric to measure its progress in system development. Extensive discussions within the ALS program have led to the following approach. The Equivalent System Mass (ESM) metric has been traditionally used and provides a good summary of the weight, size, and power cost factors of space life support equipment. But ESM assumes that all the systems being traded off exactly meet a fixed performance requirement, so that the value and benefit (readiness, performance, safety, etc.) of all the different systems designs are considered to be exactly equal. This is too simplistic. Actual system design concepts are selected using many cost and benefit factors and the system specification is defined after many trade-offs. The ALS program needs a multi-parameter metric including both the ESM and a System Value Metric (SVM). The SVM would include safety, maintainability, reliability, performance, use of cross cutting technology, and commercialization potential. Another major factor in system selection is technology readiness level (TRL), a familiar metric in ALS. The overall ALS system metric that is suggested is a benefit/cost ratio, SVM/[ESM + function (TRL)], with appropriate weighting and scaling. The total value is given by SVM. Cost is represented by higher ESM and lower TRL. The paper provides a detailed description and example application of a suggested System Value Metric and an overall ALS system metric.

Jones, Harry W.; Rasky, Daniel J. (Technical Monitor)

1999-01-01

247

45 CFR 307.5 - Mandatory computerized support enforcement systems.  

Code of Federal Regulations, 2010 CFR

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

2010-10-01

248

45 CFR 307.5 - Mandatory computerized support enforcement systems.  

Code of Federal Regulations, 2011 CFR

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

2011-10-01

249

45 CFR 307.5 - Mandatory computerized support enforcement systems.  

Code of Federal Regulations, 2013 CFR

...computerized support enforcement systems. 307.5 Section 307...DEPARTMENT OF HEALTH AND HUMAN SERVICES COMPUTERIZED SUPPORT ENFORCEMENT SYSTEMS § 307.5 Mandatory computerized support enforcement systems. (a) Basic...

2013-10-01

250

45 CFR 307.5 - Mandatory computerized support enforcement systems.  

Code of Federal Regulations, 2014 CFR

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

2014-10-01

251

45 CFR 307.5 - Mandatory computerized support enforcement systems.  

Code of Federal Regulations, 2012 CFR

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

2012-10-01

252

COMPUTER SUPPORTED ARGUMENTATION AND COLLABORATIVE DECISION MAKING: THE HERMES SYSTEM  

E-print Network

COMPUTER SUPPORTED ARGUMENTATION AND COLLABORATIVE DECISION MAKING: THE HERMES SYSTEM NIKOS HERMES, a system that augments classical decision making approaches by supporting argumentative discourse, World Wide Web 1. INTRODUCTION Collaborative Decision Support Systems (CDSSs) can been defined

Papadias, Dimitris

253

Software platform for integrated water quality decision support systems  

E-print Network

Software platform for integrated water quality decision support systems P. Cianchi*, S. Marsili Decision Support Systems, Internet computing, Intelligent agents, Visual languages, River basin management support system, based on intelligent agents. This approach results in a flexible, fully scalable

254

Alisse : Advanced life support system evaluator  

NASA Astrophysics Data System (ADS)

Long duration missions, such as the establishment of permanent bases on the lunar surface or the travel to Mars, require such an amount of life support consumables (e.g. food, water and oxygen) that direct supply or re-supply from Earth is not an option anymore. Regenerative Life Support Systems are therefore necessary to sustain long-term manned space mission to increase recycling rates and so reduce the launched mass. The architecture of an Environmental Controlled Life Support System widely depends on the mission scenario. Even for a given mission scenario, different architectures could be envisaged which need to be evaluated and compared with appropriate tools. As these evaluation and comparison, based on the single criterion of Equivalent System Mass, was not considered com-prehensive enough, ESA is developing a multi-criteria evaluation tool: ALISSE (Advanced Life Support System Evaluator). The main objective of ALISSE, and of the work presented here, is the definition and implemen-tation of a metrics system, addressing the complexity of any ECLSS along its Life Cycle phases. A multi-dimensional and multi-criteria (i.e. mass, energy, efficiency, risk to human, reliability, crew time, sustainability, life cycle cost) approach is proposed through the development of a computing support platform. Each criterion being interrelated with the others, a model based system approach is used. ALISSE is expected to provide significant inputs to the ESA Concurrent Design Facility and, as a consequence, to be a highly valuable tool for decision process linked to any manned space mission. Full contact detail for the contact author : Jean Brunet Sherpa Engineering General Manager Phone : 0033(0)608097480 j.brunet@sherpa-eng.com

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

255

Clinical Productivity System - A Decision Support Model  

E-print Network

Purpose: This goal of this study was to evaluate the effects of a data-driven clinical productivity system that leverages Electronic Health Record (EHR) data to provide productivity decision support functionality in a real-world clinical setting. The system was implemented for a large behavioral health care provider seeing over 75,000 distinct clients a year. Design/methodology/approach: The key metric in this system is a "VPU", which simultaneously optimizes multiple aspects of clinical care. The resulting mathematical value of clinical productivity was hypothesized to tightly link the organization's performance to its expectations and, through transparency and decision support tools at the clinician level, affect significant changes in productivity, quality, and consistency relative to traditional models of clinical productivity. Findings: In only 3 months, every single variable integrated into the VPU system showed significant improvement, including a 30% rise in revenue, 10% rise in clinical percentage, a...

Bennett, Casey C

2012-01-01

256

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

257

Advanced Life Support System Value Metric  

NASA Technical Reports Server (NTRS)

The NASA Advanced Life Support (ALS) Program is required to provide a performance metric to measure its progress in system development. Extensive discussions within the ALS program have reached a consensus. The Equivalent System Mass (ESM) metric has been traditionally used and provides a good summary of the weight, size, and power cost factors of space life support equipment. But ESM assumes that all the systems being traded off exactly meet a fixed performance requirement, so that the value and benefit (readiness, performance, safety, etc.) of all the different systems designs are exactly equal. This is too simplistic. Actual system design concepts are selected using many cost and benefit factors and the system specification is then set accordingly. The ALS program needs a multi-parameter metric including both the ESM and a System Value Metric (SVM). The SVM would include safety, maintainability, reliability, performance, use of cross cutting technology, and commercialization potential. Another major factor in system selection is technology readiness level (TRL), a familiar metric in ALS. The overall ALS system metric that is suggested is a benefit/cost ratio, [SVM + TRL]/ESM, with appropriate weighting and scaling. The total value is the sum of SVM and TRL. Cost is represented by ESM. The paper provides a detailed description and example application of the suggested System Value Metric.

Jones, Harry W.; Arnold, James O. (Technical Monitor)

1999-01-01

258

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

259

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

260

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

261

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

262

Decision Support System for Training Budget Management  

Microsoft Academic Search

With the passage of time corporations record a continual increase for implementing educational programs. Having to struggle with training costs and benefits, companies have been investing large amount of money, resources and time to conventional training. The evolution of learning management systems leads technology to deploy advanced learning models, supported by smart modules, and consequently to build up dynamic and

KYRIAKOS MAMOUKARIS; CONSTANTINOS MAKROPOULOS; PANAGIOTIS TELONIS

263

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

264

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...

265

The Cricket location-support system  

Microsoft Academic Search

This paper presents the design, implementation, and evaluation of Cricket, a location-support system for in-building, mobile, location- dependent applications. It allows applications running on mobile and static nodes to learn their physical location by using listeners that hear and analyze information from beacons spread throughout the building. Cricket is the result of several design goals, including user privacy, decentralized administration,

Nissanka B. Priyantha; Anit Chakraborty; Hari Balakrishnan

2000-01-01

266

Database Technology for Decision Support Systems  

Microsoft Academic Search

Decision support systems form the core of business IT infrastructures because they let companies translate business information into tangible and lucrative results. Collecting, maintaining, and analyzing large amounts of data, however, involves expensive technical challenges that require organizational commitment. Many commercial tools are available for each of the three major data warehousing tasks: populating the data warehouse from independent operational

Surajit Chaudhuri; Umeshwar Dayal; Venkatesh Ganti

2001-01-01

267

PORTPLAN, decision support system for port terminals  

Microsoft Academic Search

Models underlying a decision support system (dss) for port terminal planning are described. Among others Markov models, queuing models and simple optimization models are considered. The integration of different models, each describing specific aspects of a decision situation, is one of the major problems in the development of a dss. This paper gives a good insight in this problem field.

K. M. Van Hee; B. Huitink; D. K. Leegwater

1988-01-01

268

Environmental Control and Life Support System  

NASA Technical Reports Server (NTRS)

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

Ray, Charles; Adams, Alan

1990-01-01

269

Regenerative life support system research and concepts  

NASA Technical Reports Server (NTRS)

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

1988-01-01

270

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

NASA Astrophysics Data System (ADS)

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.

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

2004-01-01

271

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

272

Support graph preconditioners for sparse linear systems  

E-print Network

,y) to (tau1,tau2) coordinate system. . . . . . . . . . . . . . . . . . . . . . . . . 20 6 An unstructured mesh with 199 nodes, 356 triangles, divided into 4 subdomains. Each subdomain has nearly 57 nodes and 7 edges on the boundary with other subdomains... [10]: Suppose A and M are SPD matrices, and tau is a real number. If tauM -A is positive semidefinite matrix, then lambdamax(M-1A) tau. ? Support: The support sigma(A,M), of matrix M for A is the largest lower bound over all the tau, satisfying...

Gupta, Radhika

2005-02-17

273

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

274

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

275

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

276

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

277

Controlled Ecological Life Support Systems (CELSS)  

NASA Technical Reports Server (NTRS)

One of the major problems facing researchers in the design of a life support system is to construct it so that it will be capable of regulating waste materials and gases, while at the same time supporting the inhabitants with adequate food and oxygen. The basis of any gaseous life supporting cycle is autotrophs (plants that photosynthesize). The major problem is to get the respiratory quotient (RQ) of the animals to be equivalent to the assimilatory quotient (AQ) of the plants. A technique is being developed to control the gas exchange. The goal is to determine the feasibility of manipulating the plant's AQ by altering the plants environment in order to eliminate the mismatch between the plant's AQ and the animal's RQ.

Majumdar, M.

1985-01-01

278

The MicroMax 673XX Dual Axis Servo Driver  

E-print Network

The MicroMax® 673XX Dual Axis Servo Driver Cambridge Technology's MicroMax® Model 673XX Dual Axis galvanometer system band- width, step response times, size and cost. The 673XX supports peak current of up. Designed with flexibility in mind, the MicroMax Model 673XX can be configured to drive most of Cambridge

Kleinfeld, David

279

Support Staff Disclosure Reports (E-COI: Electronic System for Support Staff Conflict of  

E-print Network

User Guide Support Staff Disclosure Reports (E-COI: Electronic System for Support Staff Conflict of Interest and Commitment) EMPLOYEE RELATIONS & HUMAN RESOURCE CONSULTING (Human Resource Services) Updated

MacMillan, Andrew

280

State policy as a driver of innovation to support economic growth: California energy-efficiency policy (1975-2005)  

NASA Astrophysics Data System (ADS)

Purpose. The purpose of this research was to identify whether a relationship exists between state energy-efficiency policy and innovation in the State of California and to shed light on the impact that energy-efficiency policy can have on supporting statewide economic development goals. Theoretical Framework. The theoretical framework drew from foundations in neoclassical economic theory, technology change theory, and new growth theory. Together these theories formed the basis to describe the impacts caused by the innovations within the market economy. Under this framework, policy-generated innovations are viewed to be translated into efficiency and productivity that propel economic benefits. Methodological Considerations. This study examined various economic indices and efficiency attainment indices affecting four home appliances regulated under Title 20's energy-efficiency standard established by the California Energy Commission, Warren Alquist Act. The multiple regression analysis performed provided an understanding of the relationship between the products regulated, the regulation standard, and the policy as it relates to energy-efficiency regulation. Findings. There is enough evidence to show that strategies embedded in the Warren Alquist Act, Title 20 do drive innovation. Three of the four product categories tested showed statistical significance in the policy standard resulting in an industry efficiency improvement. Conclusively, the consumption of electricity per capita in California has positively diverged over a 35-year period from national trends, even though California had mirrored the nation in income and family size during the same period, the only clear case of divergence is the state's action toward a different energy policy. Conclusions and Recommendations. California's regulations propelled manufacturers to reach higher efficiency levels not otherwise pursued by market forces. The California effort included alliances all working together to make the change financially feasible as well as increasing efficiency levels. The success of the policy is based on the attainment of regulation standards, economic growth within the energy-efficiency industry, and energy-efficiency business savings. The key to the policy was its ability to "level the playing field" for manufacturers who could then choose the technology and design that best fit their products and compliance levels while at the same time lowering the cost of production.

Klementich, Eloisa Y.

2011-12-01

281

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

282

75 FR 76757 - Licensing Support System Advisory Review Panel  

Federal Register 2010, 2011, 2012, 2013, 2014

...NUCLEAR REGULATORY COMMISSION Licensing Support System Advisory Review Panel...Notice of renewal of the Charter of the Licensing Support Network Advisory Review Panel...SUMMARY: The Licensing Support System Advisory Review...

2010-12-09

283

Light Machines Operator Performance Support System  

SciTech Connect

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

Bohley, M.C.

1998-06-15

284

Integrating expert systems with group decision support systems  

Microsoft Academic Search

Expert systems are powerful tools that serve as adjuncts to decision making and have found wide applicability in a wide variety of areas. Integrating expert systems with group decision support systems has the potential to enhance the quality and effeciency of group communication, negotiation, and collaborative work. This paper examines possible synergies between the two technologies and provides a survey

Milam W. Aiken; Olivia R. Liu Sheng; Douglas R. Vogel

1991-01-01

285

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

286

Improving driving training with a handheld performance support system  

E-print Network

The handheld computer Driver Trainer application is an element of a new training program by the transportation company to improve the safety of new truck drivers. Its aim is to aid trainers objectively evaluate truck drivers ...

Liu, Xia, M. Eng. Massachusetts Institute of Technology

2007-01-01

287

JPSS Common Ground System Multimission Support  

NASA Astrophysics Data System (ADS)

NOAA & NASA jointly acquire the next-generation civilian operational weather satellite: Joint Polar Satellite System (JPSS). JPSS contributes the afternoon orbit & restructured NPOESS ground system (GS) to replace the current Polar-orbiting Operational Environmental Satellite (POES) system run by NOAA. JPSS sensors will collect meteorological, oceanographic, climatological & solar-geophysical observations of the earth, atmosphere & space. The JPSS GS is the Common Ground System (CGS), consisting of Command, Control, & Communications (C3S) and Interface Data Processing (IDPS) segments, both developed by Raytheon Intelligence, Information & Services (IIS). CGS now flies the Suomi National Polar-orbiting Partnership (S-NPP) satellite, transfers its mission data between ground facilities and processes its data into Environmental Data Records for NOAA & Defense (DoD) weather centers. CGS will expand to support JPSS-1 in 2017. The JPSS CGS currently does data processing (DP) for S-NPP, creating multiple TBs/day across over two dozen environmental data products (EDPs). The workload doubles after JPSS-1 launch. But CGS goes well beyond S-NPP & JPSS mission management & DP by providing data routing support to operational centers & missions worldwide. The CGS supports several other missions: It also provides raw data acquisition, routing & some DP for GCOM-W1. The CGS does data routing for numerous other missions & systems, including USN's Coriolis/Windsat, NASA's SCaN network (including EOS), NSF's McMurdo Station communications, Defense Meteorological Satellite Program (DMSP), and NOAA's POES & EUMETSAT's MetOp satellites. Each of these satellite systems orbits the Earth 14 times/day, downlinking data once or twice/orbit at up to 100s of MBs/second, to support the creation of 10s of TBs of data/day across 100s of EDPs. Raytheon and the US government invested much in Raytheon's mission-management, command & control and data-processing products & capabilities. CGS's flexible, multimission capabilities offer major chances for cost reduction & improved information integration across missions. Raytheon has a unique ability to provide complex, highly-secure, multi-mission GSs. As disaggregation, hosted CGS multimission payloads, and other space-architecture trades are implemented and new sensors come on line that collect orders of magnitude more data, the importance of a flexible, expandable and virtualized modern GS architecture increases. The CGS offers that solution support. JPSS CGS supports 5 global ground stations that can receive S-NPP & JPSS-1 mission data. These, linked with high-bandwidth commercial fiber, quickly transport data to the IDPS for EDP creation & delivery. CGS will process & deliver JPSS-1 data to US operational users in < 80 minutes from time of collection. And CGS leverages this fiber network to provide added data routing for a wide array of global missions. The JPSS CGS is a mature, tested solution for support to operational weather forecasting for civil, military and international partners and climate research. It features a flexible design handling order-of-magnitude increases in data over legacy satellite GSs and meets demanding science accuracy needs. The Raytheon-built JPSS CGS gives the full GS capability, from design & development through operations & sustainment. This lays the foundation for CGS future evolution to support additional missions like Polar Free Flyers.

Jamilkowski, M. L.; Miller, S. W.; Grant, K. D.

2013-12-01

288

Bioregenerative life support systems for microgravity  

NASA Technical Reports Server (NTRS)

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

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

1993-01-01

289

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

290

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

291

Cellular Manufacturing Internet Performance Support System  

SciTech Connect

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, training information, and service resources for government and industry users of Cincinnati Milacron machine tools and products. AlliedSignal Federal Manufacturing and Technologies (ASFM and T) used expertise in the areas of Internet design and multimedia creation to develop a performance support system (PSS) for the Internet with assistance from CM's subject matter experts from engineering, manufacturing, and technical support. Reference information was both created and re-purposed from other existing formats, then made available on the Internet. On-line references on cellular manufacturing operations include: definitions of cells and cellular manufacturing; illustrations on how cellular manufacturing improves part throughput, resource utilization, part quality, and manufacturing flexibility; illustrations on how cellular manufacturing reduces labor and overhead costs; identification of critical factors driving decisions toward cellular manufacturing; a method for identifying process improvement areas using cellular manufacturing; a method for customizing the size of cells for a specific site; a simulation for making a part using cellular manufacturing technology; and a glossary of terms and concepts.

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

1998-03-04

292

Hail Disrometer Array for Launch Systems Support  

NASA Technical Reports Server (NTRS)

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

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

2008-01-01

293

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

294

IGENPRO knowledge-based operator support system.  

SciTech Connect

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

Morman, J. A.

1998-07-01

295

A novel mechatronic body weight support system.  

PubMed

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 units, the passive spring and the active electric drive, act on the patient via a polyester rope connected to a harness worn by the patient. The length of the rope can be adjusted with an electric winch to adapt the system to different patient sizes. The system is fully computer controlled. At unloading loads of up to 60 kg and walking speeds of up to 3.2 km/h, the mean unloading error and the maximum unloading error of the presented BWS system was less than 1 and 3 kg, respectively. The performance was compared with those of two purely passive BWS systems currently being used by most other rehabilitation groups. This comprised counterweight systems and static BWS systems with fixed rope lengths. Counterweight systems reached mean and maximum unloading errors of up to 5.34 and 16.22 kg, respectively. The values for the static BWS were 11.02 kg and 27.67 kg, respectively. The novel mechatronic BWS system presented in this study adjusts desired unloading changes of up to 20 kg within less than 100 ms. Thus, not only constant BWS, but also gait cycle dependent or time variant oscillations of the desired force can be realized with high accuracy. Precise and constant unloading force is believed to be an important prerequisite for BWS gait therapy, where it is important to generate physiologically correct segmental dynamics and ground reaction forces. Thus, the novel BWS system presented in this paper is an important contribution to maximize the therapeutic outcome of human gait rehabilitation. PMID:17009491

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

2006-09-01

296

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

297

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

298

Knowledge bases, clinical decision support systems, and rapid learning in oncology.  

PubMed

One of the most important benefits of health information technology is to assist the cognitive process of the human mind in the face of vast amounts of health data, limited time for decision making, and the complexity of the patient with cancer. Clinical decision support tools are frequently cited as a technologic solution to this problem, but to date useful clinical decision support systems (CDSS) have been limited in utility and implementation. This article describes three unique sources of health data that underlie fundamentally different types of knowledge bases which feed into CDSS. CDSS themselves comprise a variety of models which are discussed. The relationship of knowledge bases and CDSS to rapid learning health systems design is critical as CDSS are essential drivers of rapid learning in clinical care. PMID:25715002

Yu, Peter Paul

2015-03-01

299

Advanced integrated life support system update  

NASA Technical Reports Server (NTRS)

The Advanced Integrated Life Support System Program (AILSS) is an advanced development effort to integrate the life support and protection requirements using the U.S. Navy's fighter/attack mission as a starting point. The goal of AILSS is to optimally mate protection from altitude, acceleration, chemical/biological agent, thermal environment (hot, cold, and cold water immersion) stress as well as mission enhancement through improved restraint, night vision, and head-mounted reticules and displays to ensure mission capability. The primary emphasis to date has been to establish garment design requirements and tradeoffs for protection. Here the garment and the human interface are treated as a system. Twelve state-off-the-art concepts from government and industry were evaluated for design versus performance. On the basis of a combination of centrifuge, thermal manikin data, thermal modeling, and mobility studies, some key design parameters have been determined. Future efforts will concentrate on the integration of protection through garment design and the use of a single layer, multiple function concept to streamline the garment system.

Whitley, Phillip E.

1994-01-01

300

Evolutionary systems design, group support systems, and application generators  

Microsoft Academic Search

Evolutionary Systems Design (ESD) is a methodology for defining and solving decision problems. ESD requires information technology to implement it. This paper utilizes several complementary software tools including group decision support, application generation, and multicriteria decision making to implement the ESD framework. The synergy between problem solving methodology and information technology thus created provides an effective operational capability for systems

Alain Checroun; Joey F. George; Melvin F. Shakun

1994-01-01

301

Decision Support Systems from a Health Informatics Perspective  

Microsoft Academic Search

Our theme in this study is decision support systems in a health informatics context. A decision support system can be approached from two major disciplinary perspectives, those of information systems science and artificial intelligence, which offer different conceptualisations of a decision support system. From an information systems science perspective, the approaches taken have been functionalist and development- and implementation-oriented, resulting

PIRKKO NYKÄNEN

2000-01-01

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

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

304

Teaching Driver Education Technology to Novice Drivers.  

ERIC Educational Resources Information Center

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

Young, Anthony

305

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

306

Linking plant disease risk and precipitation drivers: a dynamical systems framework.  

PubMed

Plant pathogens often respond sensitively to changes in their environmental conditions and consequently represent a potentially important ecological response to global change. Although several studies have considered the effects of increased temperature and CO(2) concentrations on plant pathogen risk, the effects of changing precipitation regimes have drawn less attention. Many classes of plant pathogen, however, are sensitive to changes in the water potential of their local environment. This study applied existing ecohydrological frameworks to connect precipitation, soil, and host properties with scenarios of pathogen risk, focusing on two water-sensitive pathogens: Phytophthora cinnamomi and Botryosphaeria doithidea. Simple models were developed to link the dynamics of these pathogens to water potentials. Model results demonstrated that the risk of host plants being colonized by the pathogens varied sensitively with soil and climate. The model was used to predict the distribution of Phytophthora in Western Australia and the severity of disease in horticultural blueberry trials with variable irrigation rates, illustrating potential applications of the framework. Extending the modeling framework to include spatial variation in hydrology, epidemic progression, and feedbacks between pathogens and soil moisture conditions may be needed to reproduce detailed spatial patterns of disease. At regional scales, the proposed modeling approach provides a tractable framework for coupling climatic drivers to ecosystem response while accounting for the probabilistic and variable nature of disease. PMID:23234853

Thompson, Sally; Levin, Simon; Rodriguez-Iturbe, Ignacio

2013-01-01

307

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

308

Conceptual foundations for the development of organizational decision support systems  

Microsoft Academic Search

It is noted that the effort to construct organizational decision support systems (ODSS) is new to the field of information systems but draws heavily on previous experience with decision support systems (DSS) and group decision support systems (GDSS). The conceptual foundations of this new venture are not well established, but the most logical approach to designing ODSS would be to

John Leslie King; Susan Leigh Star

1990-01-01

309

Determining standards of care for substance abuse and alcohol use in long-haul truck drivers.  

PubMed

The trucking industry employs approximately 9 million workers, with approximately 3 million being long-haul truck drivers. Truck drivers are exposed to a variety of stressful situations, such as working long hours, no sleep, inadequate rest and relaxation, being away from home and support systems, and driving in hazardous conditions. These risk factors place the long-haul truck driver at an increased risk for possible use or abuse of alcohol and drugs. Identification of those at risk and those who are abusing alcohol and drugs is vitally important for the health of these truckers. PMID:18674669

Gay Anderson, Debra; Riley, Peggy

2008-09-01

310

Decision support system for capillaroscopic images  

NASA Astrophysics Data System (ADS)

The aim of the paper is to describe a decision support system operating in the area of capillaroscopic images. The system automatically sites the capillaroscopic analyzed image into one of the following classes: normal, diabetic and sclerodermic. The automatic morphometric analysis attempts to imitate the physician behavior and requires the introduction of some particular features connected with the specific domain. These features allow a symbolic representation of the capillary partitioning it into three components: apex, arteriolar, and venular. Each component is qualified by specific attributes which allow the necessary shape evaluations in order to discriminate among the classes of capillaries. The system is hierarchically organized in two levels. The first level is concerned with the segmentation after a noise reduction and an enhancement of the digitized image. This level uses a shell, developed and successfully experimented for many heterogeneous classes of images. The second level is concerned with the effective classification of the previously processed image. It matches the visual data with a model constituted by a semantic network which embeds the geometric and structural a-priori knowledge of all kinds of capillaries. The system has been successfully used in experiments to obtain images of nailfold capillaries of the human finger.

Tascini, Guido; Puliti, Paolo; Zingaretti, Primo

1991-07-01

311

Support hull: relating the cayley-dixon resultant constructions to the support of a polynomial system  

Microsoft Academic Search

A geometric concept of the support hull of the support of a polynomial was used earlier by the authors for developing a tight upper bound on the size of the Cayley-Dixon resultant matrix for an unmixed polynomial system. The relationship between the support hull and the Cayley-Dixon resultant construction is analyzed in this paper. The support hull is shown to

Arthur D. Chtcherba; Deepak Kapur

2004-01-01

312

Use of computerized decision support systems to improve antibiotic prescribing  

Microsoft Academic Search

This decade will see the emergence of the electronic medical record, electronic prescribing and computerized decision support in the hospital setting. Current opinion from key infectious diseases bodies supports the use of computerized decision support systems as potentially useful tools in antibiotic stewardship programs. However, although antibiotic decision support systems appear beneficial for improving the quality of prescribing and reducing

Karin Thursky

2006-01-01

313

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

314

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.

315

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

316

Composting in advanced life support systems.  

PubMed

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. PMID:11541773

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

1998-01-01

317

Internally shielded beam transport and support system  

SciTech Connect

Due to environmental concerns, the Advanced Photon Source has a policy that disallows any exposed lead within the facility. This creates a real problem for the beam transport system, not so much for the pipe but for the flexible coupling (bellows) sections. A complete internally shielded x-ray transport system, consisting of long transport lines joined by flexible coupling sections, has been designed for CARS sector 14 to operate either at high vacuum or as a helium flight tube. It can effectively shield against air scattering of wiggler or undulator white beam with proper placement of apertures, collimators, and masks for direct beam control. The system makes use of male- and female-style fittings that create a labyrinth allowing for continuous shielding through the flexible coupling sections. These parts are precision machined from a ternary hypereutectic lead alloy (cast under 15 inches of head pressure to assure a pinhole-free casting) then pressed into either end (rotatable vacuum flanges) of the bellows assembly. The transport pipe itself consists of a four part construction using a stepped transition ring (Z-ring) to connect an inner tube to the vacuum flange and also to a protective and supportive outer tube. The inner tube is wrapped with 1/16{double_prime} pure lead sheet to a predetermined thickness following the shape of the stepped transition ring for continuous shielding. This design has been prototyped and radiation tested. {copyright} {ital 1996 American Institute of Physics.}

Schildkamp, W.; Brewer, H. [Consortium for Advanced Radiation Sources, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637 (United States)] [Consortium for Advanced Radiation Sources, University of Chicago, 5640 S. Ellis Ave., Chicago, IL 60637 (United States)

1996-09-01

318

Suspension system for gimbal supported scanning payloads  

NASA Technical Reports Server (NTRS)

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. (inventor)

1995-01-01

319

INTRODUCTION Mechanical circulatory support system are widely used  

E-print Network

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

Kim, Chris H.

320

Hydrologic controls and anthropogenic drivers of the zebra mussel invasion of the Mississippi-Missouri river system  

NASA Astrophysics Data System (ADS)

We propose a novel ecohydrological model for the invasion of inland waters by the zebra mussel Dreissena polymorpha and test it against field data gathered within the Mississippi-Missouri river system in North America. This biological invasion poses major ecological and economic threats, especially due to the huge population densities reached by local zebra mussel colonies and the species' unparalleled dispersal abilities within fluvial systems. We focus on a quantitative evaluation, attempted here for the first time, of the individual roles and the mutual interactions of drivers and controls of the Mississippi-Missouri invasion. To this end, we use a multilayer network model accounting explicitly for zebra mussel demographic dynamics, hydrologic transport, and dispersal due to anthropic activities. By testing our results against observations, we show that hydrologic transport alone is not sufficient to explain the spread of the species at the basin scale. We also quantify the role played by commercial navigation in promoting the initial, selective colonization of the river system, and show how recreational boating may have determined the capillary penetration of the species into the water system. The role of post-establishment dispersal mechanisms and the effectiveness of possible prevention measures are also discussed in the context of model sensitivity and robustness to reparametrization.

Mari, L.; Bertuzzo, E.; Casagrandi, R.; Gatto, M.; Levin, S. A.; Rodriguez-Iturbe, I.; Rinaldo, A.

2011-03-01

321

Technology and teen drivers  

Microsoft Academic Search

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

John D. Lee

2007-01-01

322

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. PMID:20628448

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

2010-01-01

323

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

324

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

325

A decision support system for urban waste management  

Microsoft Academic Search

This paper describes a decision support system, for urban waste management in a regional area, to be used for evaluating general policies for service organisation of the collection and for identifying areas suitable for locating waste treatment and disposal plants. The Decision Support System (DSS) is applied to a selected provinces in Sicily. The decision support system allows the generation

P. Haastrup; V. Maniezzo; M. Mattarelli; F. Mazzeo Rinaldi; I. Mendes; M. Paruccini

1998-01-01

326

Maximally positive polynomial systems supported on Frederic Bihan  

E-print Network

Maximally positive polynomial systems supported on circuits Fr´ed´eric Bihan Laboratoire de Math polynomial system with support W Zn is called maximally pos- itive if all its complex solutions are positive of non-degenerate positive solutions of a system supported on a circuit W Zn is at most m(W) + 1, where

Paris-Sud XI, Université de

327

Clinical Decision Support Systems in Biomedical Informatics and their Limitations  

E-print Network

Clinical Decision Support Systems in Biomedical Informatics and their Limitations Alberto De la Abstract Clinical decision support systems can be categorized in three types: information management are needed. The main goal with clinical decision support systems is to emulate a clinician's thought process

Demurjian, Steven A.

328

A Contemplation of Group Decision Support Systems Sohail Asghar  

E-print Network

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

Fong, Chi Chiu "Simon"

329

Marko Bohanec: Systems and Techniques of Decision Support  

E-print Network

Marko Bohanec: Systems and Techniques of Decision Support Questions Version 16.11.2010 1 and Descriptive approach to Decision Science. 9. What is Decision Support? 10. Define Decision Support Systems? 11 between Decision Sciences and Decision Systems? 8. Explain the difference between Normative

Bohanec, Marko

330

Thermedics' approach to ventricular support systems.  

PubMed

Temporary and permanent ventricular assist systems, developed by Thermedics, Inc., are described, including rationale, design, operation and surgical applications. Clinical data are presented for pneumatically driven temporary left ventricular assist devices (LVAD). Usefulness of this device rests on the assumption that tissue of a weakened heart can recover if relieved for a time by an LVAD. The surgical implantation of an LVAD is reported in a case where the patient later received a heart transplant. The concept and technology of the subsystems of a permanent ventricular assist system (VAS), now ready for preclinical trials, are discussed. Design of a low-speed, torque-motor driven blood pump is described. Details are presented on transcutaneous energy transmission by means of a transformer, one of whose coils is embedded under the skin. Though less efficient than percutaneous transmission, the method eliminates infection risk. Special types of polyurethanes are analyzed in respect to their biocompatibility. It is concluded that flocking of the polyurethane surface allows the growth of a biological lining which is highly antithrombogenic. Sintered metal powders are found to be most efficient for fabrication of rigid pump components. A lenticular pump design is proposed to solve the problem of pressure differentials in the sealed device. Cardiac endocrine functions are cited in support of using assist devices that leave the heart in place. PMID:3333398

Szycher, M; Clay, W; Gernes, D; Sherman, C

1986-07-01

331

9, 1443714473, 2012 Soil carbon drivers  

E-print Network

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

Ickert-Bond, Steffi

332

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

333

The Multicriteria Selection Methodology of the Decision Support System 51 THE MULTICRITERIA SELECTION METHODOLOGY OF THE DECISION SUPPORT SYSTEM  

E-print Network

The Multicriteria Selection Methodology of the Decision Support System 51 THE MULTICRITERIA SELECTION METHODOLOGY OF THE DECISION SUPPORT SYSTEM Justyna PATALAS-MALISZEWSKA*, Tadeusz KRUPA** Faculty SYSTEM Abstract: An issue of building a tool orientated to the support of selection process of decision

334

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

335

Effects of Single versus Multiple Warnings on Driver Performance  

E-print Network

Objective: To explore how a single master alarm system affects drivers’ responses when compared to multiple, distinct warnings. Background: Advanced driver warning systems are intended to improve safety, yet inappropriate ...

Cummings, M. L.

2007-01-01

336

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

337

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

338

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

Microsoft Academic Search

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

Olli Salmi

2008-01-01

339

Support system for mental health professionals.  

PubMed

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

Dandekar, Ajit

2015-01-01

340

Support System for Mental Health Professionals*  

PubMed Central

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

Dandekar, Ajit

2015-01-01

341

Changing human-ecological relationships and drivers using the Quesungual agroforestry system in western Honduras  

Technology Transfer Automated Retrieval System (TEKTRAN)

The development of sustainable agricultural production systems in the tropics is challenging in part because the local and external conditions that affect sustainability are constantly in flux. The Quesungual Agroforestry System (QSMAS) was developed in response to these changing conditions. The his...

342

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

343

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.

344

A hand rehabilitation support system with improvements based on clinical  

E-print Network

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

Ito, Satoshi

345

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

346

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

347

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

348

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

349

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

350

Driver Distraction From a Control Theory Perspective  

Microsoft Academic Search

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

Thomas B. Sheridan

2004-01-01

351

Vision-based multi-scaled vehicle detection and distance relevant mix tracking for driver assistance system  

NASA Astrophysics Data System (ADS)

This paper aims to improve the robustness of vision-based multi-scaled vehicle detection and tracking for an actual driver assistance system. Considering the problem of discontinuity of detection and tracking for multi-scaled vehicles especially in an ultra-close area, we propose a novel detection framework which concludes short-range local feature (license plate) detection and long-range skeleton detection. Specially, the rear license plate can be located accurately by introducing a multi-scaled morphological operator and analyzing the color information. Then, vehicles in a long supervising range can be detected with a Look-up Table-based AdaBoost classifier synchronically. Finally, an inverse perspective mapping-based tracking strategy is proposed to unite the location results in the framework. It is proved to make up the leak vehicle detection in the near supervising area and improve the robustness of tracking. The accuracy of license-based detection and the robust mix tracking have both been testified in several groups of experiments.

Gu, Qin; Yang, Jianyu; Zhai, Yuqiang; Kong, Lingjiang

2015-03-01

352

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

353

Transportation Decision Support Systems Oak Ridge National Laboratory  

E-print Network

Transportation Decision Support Systems Oak Ridge National Laboratory managed by UT-Battelle, LLC Passenger Flows Supply Chain Efficiency Transportation: Energy Environment Safety Security Vehicle and implementation of automated transportation decision support models for the scheduling and routing of cargo

354

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

355

SymDrive: Testing Drivers without Devices Matthew J. Renzelmann, Asim Kadav and Michael M. Swift  

E-print Network

- ment "compile tested only." SymDrive is a system for testing Linux and FreeBSD drivers without-driver implementations. In applying SymDrive to 21 Linux drivers and 5 FreeBSD drivers, we found 39 bugs. 1 Introduction driver Linux and FreeBSD patches include the comment "compile tested only," in- dicating

Swift, Michael

356

Feasibility of developing a portable driver performance data acquisition system for human factors research: Technical tasks. Volume 1  

SciTech Connect

A two-phase, multi-year research program entitled ``development of a portable driver performance data acquisition system for human factors research`` was recently completed. The primary objective of the project was to develop a portable data acquisition system for crash avoidance research (DASCAR) that will allow drive performance data to be collected using a large variety of vehicle types and that would be capable of being installed on a given vehicle type within a relatively short-time frame. During phase 1 a feasibility study for designing and fabricating DASCAR was conducted. In phase 2 of the research DASCAR was actually developed and validated. This technical memorandum documents the results from the feasibility study. It is subdivided into three volumes. Volume one (this report) addresses the last five items in the phase 1 research and the first issue in the second phase of the project. Volumes two and three present the related appendices, and the design specifications developed for DASCAR respectively. The six tasks were oriented toward: identifying parameters and measures; identifying analysis tools and methods; identifying measurement techniques and state-of-the-art hardware and software; developing design requirements and specifications; determining the cost of one or more copies of the proposed data acquisition system; and designing a development plan and constructing DASCAR. This report also covers: the background to the program; the requirements for the project; micro camera testing; heat load calculations for the DASCAR instrumentation package in automobile trunks; phase 2 of the research; the DASCAR hardware and software delivered to the National Highway Traffic Safety Administration; and crash avoidance problems that can be addressed by DASCAR.

Carter, R.J.; Barickman, F.S.; Spelt, P.F.; Schmoyer, R.L.; Kirkpatrick, J.R.

1998-01-01

357

Driver fatigue among military truck drivers  

Microsoft Academic Search

The Israeli Defense Force (IDF) Transport Center is the largest and the most diverse transportation organization in Israel: three times as large as the largest commercial fleet in Israel, and military bases are spread all over the country. It also has the ability to regulate the drivers better: enforcing diet, hours of sleep, and working hours. The drivers are either

Tal Oron-Gilad; David Shinar

2000-01-01

358

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

359

Driver Performance and IVHS Collision Avoidance Systems: A Search for Design-Relevant Measurement Protocols  

Microsoft Academic Search

Success in developing IVHS collision avoidance systems that are both commercially attractive and effective will depend in large part on how well product designers understand and accommodate human factors considerations in their designs. Help from the human factors community will be sought in this regard and new research will likely be needed to provide designers this information .A review of

Robert M. Clarke; Michael J. Goodman; Michael Perel; Ronald R. Knipling

360

The eVects of adverse condition warning system characteristics on driver performance: an  

E-print Network

, Wheeler et al. 1998). The following study focuses on another, equally important component of ITS: adverse York, Amherst, NY 14260, USA Abstract. This study addresses the issues concerning the design of adverse condition warning systems (ACWS). ACWS are designed to sense adverse road and weather conditions as well

Singh, Tarunraj

361

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

362

Innovation processes in large technical systems: Market liberalization as a driver for radical change?  

Microsoft Academic Search

Electricity supply is a large technical system, which exhibits strong path dependencies and high barriers for radical innovations. Recent market liberalization, however, has initiated a fundamental restructuring. The paper analyzes how liberalization has altered innovation processes in the field of electricity supply. We examine three radical innovations under monopoly conditions and contrast the findings with the results from a survey

Jochen Markard; Bernhard Truffer

2006-01-01

363

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

364

Web Tutorials on Systems Thinking Using the Driver-Pressure-State-Impact-Response (DPSIR) Framework  

EPA Science Inventory

This set of tutorials provides an overview of incorporating systems thinking into decision-making, an introduction to the DPSIR framework as one approach that can assist in the decision analysis process, and an overview of DPSIR tools, including concept mapping and keyword lists,...

365

Visitor schedule management system- an intelligent decision support system  

E-print Network

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

Nidhra, Srinivas; Ethiraj, Vinay Sudha

2012-01-01

366

Design of Reusable Software for USB Host Driver in Embedded System  

Microsoft Academic Search

Based on a test and control platform with CPU intel strong ARM*SA-1110 (ARM7) and real-time operating system (RTOS) with windows CE, this paper analyses and expatiates design and realization method of a universal serial bus (USB) host module based on USB host controlling chip ISP1161BD, including the design scheme of USB host function module, the frames of USB host hardware

Gaohua Liao; Quanguo Lu; Weizhong Zhang

2010-01-01

367

A new head pose estimating algorithm based on a novel feature space for driver assistant systems  

Microsoft Academic Search

This paper introduces a Direct Accountability technique for real-time estimation of head's position and orientation. Unlike existing works which rely on feature extraction either in the image domain or in 3D space, our proposed approach based on expert classifiers ordering estimates the head pose for real-time applications, such as human-machine interaction (HMI) and video-based surveillance systems. In this paper a

Ali Ghaffari; Mahdieh Rezvan; Alireza Khodayari; Seyyed Hossein Sadati; Afra Vahidi-Shams

2011-01-01

368

Multibody approach to dynamic analysis of driver-interactive seatbelt system with motorized retractor  

Microsoft Academic Search

The purpose of this research was to analyze the dynamic behavior of a seatbelt system, focusing on the kinematics of its motorized\\u000a retractor mechanism as well as its overall performance. The motorized retractor was modeled based on the multibody principle,\\u000a taking into consideration of the detailed kinematic configuration of the one-way clutch mechanism, which is the critical component\\u000a of the

Sugil Choi; Taeoh Tak

2011-01-01

369

Desicion Support System For Natural Hazards  

NASA Astrophysics Data System (ADS)

The problems that do not permit environmental data to be turned to good advantage can be outlined as follows. Damage caused by emergencies is attributable not so much to the lack of significant technological advancement as to the low level of decision makers' (DMs) awareness and inadequate account of the available information. In most cases DMs use information by intuition or on the basis of their own experience. Totally identical conditions of the environment recur very rarely. As a result the knowledge gained by DMs in the course of their activities tends to disappear after a while and cannot be used when identical environmental conditions are experienced again. Training of DMs to take due account of environmental conditions requires considerable resources. Dependence of the economy performance on the environment has not been studied adequately. Due to the large amount of information DMs can not respond to the continuous changes in the environmental conditions in a timely fashion. Sometimes information is not properly recorded, sometimes it is not delivered, and often it is not used properly or just ignored. Forms of information delivery are far from being perfect, information comes from various sources. It takes considerable time to deliver information. Sometimes delivery time is too long for DMs. Not all steps of information processing are automated. DM does not always know how and when to use operational, forecasting and climatic information. There are no legal norms to bring DMs to responsibility for not using information or for not taking measures to prevent damage. Potential damage from underestimation of environmental conditions may be significant and therefore the cost of the inadequate use of information may also be high. Attempts to improve consideration of environmental conditions by increasing the amount and range of information can cause even more difficulties for DMs. A number of potential emergency situations are huge, but a number of recommendations should be reasonable. To resolve the above problems or to make them less significant it is necessary to develop decision support systems (DSS). DMs need not tables with initial data, analytical, forecasting and climatic information, but messages containing warnings on critical value accidence, information on probability of hazards, information on potential losses, and information on hazardous impacts and recommendations on decision making. DSS can do the following: take into account impacts on specific points and on the total area under consideration; allow for the effects of the environment on economic entities (objects) in any geographical region to be analyzed; distinguish impacts and changes caused both by different phenomena and by their combination; signal when objects are or can be in adverse environmental conditions, e.g. in the area affected by fog, storm, tropical cyclone or in the area where the probability of hazardous ice events is very high, etc. The main component of DSS is a knowledge base based on the following concept: if we know environmental conditions it is possible to predict potential impacts on the economy; if we know impacts it is possible to give a set of recommendations on how to prevent (reduce) losses or how to use natural resources most efficiently. Decision making criteria are safety of people and property, reduction of losses, increase of profit, materials saving, etc. Knowledge base is a set of rules formulated in a formalized way using if, that, else. If "Water level in S.-Petersburg >150 cm" that "To give out warning information "Hazards for building on coastal river Neva is possible" and recommendations "The valuable goods carry out in second floor" else "To switch another rule". To have a knowledge base in place it is necessary to: develop tools of identifying and getting knowledge from experts; arrange the information flow from available information systems (operational data, analyses, forecasts, climatic information) through the system of information resources integration

Vyazilov, E.

2009-04-01

370

An Empirical Investigation of the Relationship Between Top Management Support, Information System Management Support, Vendor\\/Consultant Support and Executive Information Systems Success  

Microsoft Academic Search

This study investigates the relationship between top management support, IS management support, vendors\\/consultant support, and Executive Information System (EIS) success. Data was collected using a mail questionnaire from a nation-wide random sample. 70 firms that had adopted EIS responded to the questionnaire. Results of the analysis indicate that (1) top management support for EIS efforts is significantly correlated with IS

Deepinder S. Bajwa; Arun Rai

1994-01-01

371

Conceptual design of data acquisition and control system for two Rf driver based negative ion source for fusion R&D  

NASA Astrophysics Data System (ADS)

Twin Source - An Inductively coupled two RF driver based 180 kW, 1 MHz negative ion source experimental setup is initiated at IPR, Gandhinagar, under Indian program, with the objective of understanding the physics and technology of multi-driver coupling. Twin Source [1] (TS) also provides an intermediate platform between operational ROBIN [2] [5] and eight RF drivers based Indian test facility -INTF [3]. A twin source experiment requires a central system to provide control, data acquisition and communication interface, referred as TS-CODAC, for which a software architecture similar to ITER CODAC core system has been decided for implementation. The Core System is a software suite for ITER plant system manufacturers to use as a template for the development of their interface with CODAC. The ITER approach, in terms of technology, has been adopted for the TS-CODAC so as to develop necessary expertise for developing and operating a control system based on the ITER guidelines as similar configuration needs to be implemented for the INTF. This cost effective approach will provide an opportunity to evaluate and learn ITER CODAC technology, documentation, information technology and control system processes, on an operational machine. Conceptual design of the TS-CODAC system has been completed. For complete control of the system, approximately 200 Nos. control signals and 152 acquisition signals are needed. In TS-CODAC, control loop time required is within the range of 5ms - 10 ms, therefore for the control system, PLC (Siemens S-7 400) has been chosen as suggested in the ITER slow controller catalog. For the data acquisition, the maximum sampling interval required is 100 micro second, and therefore National Instruments (NI) PXIe system and NI 6259 digitizer cards have been selected as suggested in the ITER fast controller catalog. This paper will present conceptual design of TS -CODAC system based on ITER CODAC Core software and applicable plant system integration processes.

Soni, Jigensh; Yadav, R. K.; Patel, A.; Gahlaut, A.; Mistry, H.; Parmar, K. G.; Mahesh, V.; Parmar, D.; Prajapati, B.; Singh, M. J.; Bandyopadhyay, M.; Bansal, G.; Pandya, K.; Chakraborty, A.

2013-02-01

372

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

NASA Astrophysics Data System (ADS)

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

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

373

Home telecare: system architecture to support chronic disease management  

Microsoft Academic Search

A system architecture to support information transfer between hospital, general practitioner and the home is described in the context of a Home Telecare System (HTS). The HTS facilitates the acquisition, review, analysis and archiving of a longitudinal clinical record to support chronic disease management. The system allows the clinician to schedule for his,her patient the regular recording of clinical measurements

Farah Magrabi; Nigel H. Lovell; Khang Huynh; Branko G. Celler

2001-01-01

374

The Cognitive Ergonomics of Knowledge-Based Design Support Systems  

E-print Network

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

375

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

376

Eye Movement-Based Inference of Truck Driver's Intent of Changing Lanes  

NASA Astrophysics Data System (ADS)

The purpose of this paper is to propose a method to infer a truck driver's intent to change lanes before initiation of its maneuver. Observation on a truck driver's behavior in a real world and ordinary drivers' behavior at a driving simulator indicate common features that the drivers' glance at the side-view mirror and speed meter becomes frequently when they are going to change lanes in a near future. Based on the observation, a four-level method is developed for detecting driver's intent to change lanes by using the information of eye-movement. The method is applied to data collected in an experiment. The result shows that driver's intent is detected at a high level in average 80 percent lane changes when the maneuvers of changing lanes are initiated. Investigations also suggest that a risky lane change may occur if driver's intent is not detected at the high level. These findings are important to realize an adaptive support system in lane changes.

Zhou, Huiping; Itoh, Makoto; Inagaki, Toshiyuki

377

Decision support system supporting clinical reasoning process - an evaluation study in dementia care.  

PubMed

In this paper, a case study is presented in which an early prototype of a decision-support system was integrated in the process of investigating patients with suspected dementia and evaluated. The aims were to capture and model the complex target activity for the purpose of knowledge acquisition and formalization, and qualitatively evaluate the system's compliance with reasoning and work processes as part of the development of a decision-support system for the domain. The results show that contextual factors such as local routines in clinical practice motivate further development of the support integrated in the system for establishing preliminary diagnoses in the investigation process. PMID:18487750

Lindgren, Helena

2008-01-01

378

Investigation of linear ponderomotor units, used as drivers in magnetic implosion system  

SciTech Connect

A system design for the feasibility of controlled inertial thermonuclear fusion (ITF), based on target implosion by fast-rising magnetic field was published in 1979. The base of this design became the realization of a powerful explosive-magnetic generator (EMG) of disc type by that time. Only the disc EMG was capable to be employed as a current source for the energy releasing unit, a ponderomotor unit (PU) , in which the magnetic field energy is converted into a kinetic one of axial symmetric shells-liners, imploding and heating a thermonuclear target. Theoretical, physical, and technical aspects of the development of different PU have been extensively investigated in the scope of this project.

Kuzyaev, A.I.; Buyko, A.M.; Vakhrushev, V.V. [and others

1993-12-31

379

Vision-based vehicle detection and inter-vehicle distance estimation for driver alarm system  

NASA Astrophysics Data System (ADS)

In this paper, we propose a robust real-time vehicle detection and inter-vehicle distance estimation algorithm for vision-based driving assistance system. The proposed vehicle detection method uses the combination of multiple vehicle features, which are the usual Harr-like intensity features of car-rear shadows and additional Haar-like edge features. The combination of two distinctive Haar-like intensity and edge features greatly reduces the false-positive vehicle detection errors in real-time. And, after analyzing two inter-vehicle distance estimation methods: the vehicle position-based and the vehicle width-based, we present a novel improved inter-vehicle distance estimation algorithm that uses the advantage of both methods. Various experimental results show the effectiveness of the proposed method.

Kim, Giseok; Cho, Jae-Soo

2012-11-01

380

Interactive System of Work Support in Consideration of Worker Competency  

NASA Astrophysics Data System (ADS)

This paper deals with a work support system that helps novice workers to execute and learn tasks efficiently. In order to realize this system, the interaction process between workers and the support system is discussed. Radio frequency identification (RFID) system is applied for setting flexible interaction processes in consideration of worker competency. Also, a software simulator that measures the capacity of human memory and learning is used to formulate a guideline for the interaction design. Finally, an experiment on the work support system in actual assembly work is conducted. As a result, all subjects were able to complete their tasks without error, even when they attempted the work for the first time, and to learn a series of tasks by the practical operations using the support system. This result confirms the effectiveness of the work support system.

Tateno, Toshitake

381

Support structure of toroidal field magnet system of SST1  

Microsoft Academic Search

The support structure of the TF magnet system of SST-1 is described. TF magnet structure comprises of the casing in which winding is encased and the bottom support on which full TF magnet assembly is supported. The design philosophy and the results of analytical and finite element analysis of TF coil casing are presented

V. M. Bedakihale; V. Jain; K. N. V. Suresh Babu; K. J. Thomas; B. R. Doshi; Y. C. Saxena

1997-01-01

382

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

383

Support QoS in Open Real-Time Systems  

Microsoft Academic Search

With the development of computer systems, the realtime systems with different kinds of real-time applications and non-real-time applications are becoming more and more popular. At the same time, more and more multimedia applications make real-time system to support QoS. Based on the real-time systems, the paper proposes a model of Linux-based open real-time systems with QoS support. Firstly, the paper

Zhu Xiangbin; Jinhua Zhejiang

2008-01-01

384

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

385

Geographic Information System Resources to Support  

E-print Network

constitute or imply its endorsement, recommendation, or favoring by the United States Government or any supported by the United States Department of Energy under Cooperative Agreement Number DE-FC-06NT42847. Disclaimer: This report was prepared as an account of work sponsored by an agency of the United States

386

Strengthening Practices and Systems to Support Grandfamilies  

E-print Network

relationships; learn about programs and tools to support grandfamilies; and learn community strategies which can cultural differences, will be discussed. 10:45 - Break - Visit Exhibits 11:15 - Plenary Session: Successful Programming Strategies Presenter: Linda Dannison Ph.D., Western Michigan University Dannison

387

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

388

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

SciTech Connect

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

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

2014-04-01

389

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

390

Stability design considerations for mirror support systems in ICF lasers  

SciTech Connect

Some of the major components of laser systems used for Inertial Confinement Fusion (ICF) are the large aperture mirrors which direct the path of the laser. These mirrors are typically supported by systems which consist of mirror mounts, mirror enclosures, superstructures, and foundations. Stability design considerations for the support systems of large aperture mirrors have been developed based on the experience of designing and evaluating similar systems at the Lawrence Livermore National Laboratory (LLNL). Examples of the systems developed at LLNL include Nova, the Petawatt laser, Beamlet, and the National Ignition Facility (NIF). The structural design of support systems of large aperture mirrors has typically been controlled by stability considerations in order for the large laser system to meet its performance requirements for alignment and positioning. This paper will discuss the influence of stability considerations and will provide guidance on the structural design and evaluation of mirror support systems in ICF lasers so that this information can be used on similar systems.

Tietbohl, G.L.; Sommer, S.C.

1996-10-01

391

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

392

Driver Distraction Test Rig for HMI Studies  

Microsoft Academic Search

Driver distraction test rig is an automotive fascia analog for human machine interface studies, produced in conjunction with Swinburne University of Technology, GM Holden Innovation, and AutoCRC. The prototype will be used in the development and validation of test protocols for evaluating the level of driver distraction imposed by in-vehicle information systems. By means of modular interfacing technologies, spatial reconfiguration

David Shirley; Alex Greenwood; Christian Bottcher; Zhenwei Cao

2009-01-01

393

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

SciTech Connect

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

Mazarakis, Michael Gerrassimos; Struve, Kenneth William

2006-09-01

394

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. PMID:15078604

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

2004-01-01

395

Driver behaviour profiles for road safety analysis.  

PubMed

Driver behaviour is a contributing factor in over 90 percent of road crashes. As a consequence, there is significant benefit in identifying drivers who engage in unsafe driving practices. Driver behaviour profiles (DBPs) are introduced here as an approach for evaluating driver behaviour as a function of the risk of a casualty crash. They employ data collected using global positioning system (GPS) devices, supplemented with spatiotemporal information. These profiles are comprised of common risk scores that can be used to compare drivers between each other and across time and space. The paper details the development of these DBPs and demonstrates their use as an input into modelling the factors that influence driver behaviour. The results show that even having controlled for the influence of the road environment, these factors remain the strongest predictors of driver behaviour suggesting different spatiotemporal environments elicit a variety of psychological responses in drivers. The approach and outcomes will be of interest to insurance companies in enhancing the risk-profiling of drivers with on-road driving and government through assessing the impacts of behaviour-change interventions. PMID:25638284

Ellison, Adrian B; Greaves, Stephen P; Bliemer, Michiel C J

2015-03-01

396

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

397

Cable support systems for longwall gate road stability  

SciTech Connect

The US Bureau of Mines, in cooperation with the Cyprus-Plateau Mining Company, has conducted research to provide an alternative to traditional secondary support systems in a two-entry, yield pillar gate road. As recent as two years ago, it was impossible to imagine a gate road supported solely with internal high-strength resin-grouted cable supports that would virtually eliminate the necessity for crib or concrete external supports. The support system evaluated consisted of 1.6-m (5-ft) full-column resin-grouted bolts and 4.8-m (16-ft) long cable supports installed in conjunction with wire mesh and ``monster-mats.`` Cable loading and roof deformations were monitored to evaluate the behavior of the immediate and main roofs during first and second panel extractions. The stress and loading histories for the panels and yield pillar were monitored to evaluate the stress transfer and pillar performance in conjunction with the roof and floor behavior. The test results indicated that the designed support system successfully maintained the roof during the extraction of two longwall panels and dramatically reduced the cost of secondary support. This paper will describe the theory of a cribless support system, the advantages of cable supports, and present the pillar, roof, and floor measurements made to assess the support performance during longwall retreat mining.

Tadolini, S.C. [Bureau of Mines, Denver, CO (United States). Denver Research Center; Trackemas, J.D.; Jensen, K.L. [Cyprus-Plateau Mining Co., Price, UT (United States)

1995-11-01

398

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

399

Problem evolution and solution in negotiation support systems  

Microsoft Academic Search

As background for an open forum on problem evolution and solution in negotiation support systems (NSS), the subject is discussed from the viewpoint of evolutionary systems design. Some important research areas in problem evolution and solution in NSS are noted

Melvin F. Shakun

1993-01-01

400

Planning support systems for spatial planning through social learning  

E-print Network

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

Goodspeed, Robert (Robert Charles)

2013-01-01

401

The Organizational Impact of a Decision Support System.  

ERIC Educational Resources Information Center

The results of a follow-up evaluation of a decision support system installed 5 years ago at Guilford College are reported. Changes in the system, resulting procedures, and the organization are described. (Author/MLW)

Pope, James A.; Cross, Edward M.

1984-01-01

402

Columbus system support for telescience operations  

NASA Technical Reports Server (NTRS)

With the given constraints of the space environment, the telescience concept aims at providing a space mission user with optimum flexibility and responsiveness for spaceborne investigations. The concept includes automated system management functions, which allocate and monitor planned resources and time windows, within which the investigator can perform his science interactively responding 'on-line' to experimental data. During the telescience operation, the user is given the capability to send telecommands to the payload from the User Home Base with transparency to the rest of the system. Any violation of the 'booked' time and resources will be detected by the system and reported back to the user for appropriate action. Ultimately, the system will react to maintain the integrity of the system and its payload. Upon completion of the telescience session, the system management function reverses the system configuration and deallocates resources automatically.

Lytton, David W.; Schulze, Rolf

1993-01-01

403

Visualization drivers for Geant4  

SciTech Connect

This document is on Geant4 visualization tools (drivers), evaluating pros and cons of each option, including recommendations on which tools to support at Fermilab for different applications. Four visualization drivers are evaluated. They are OpenGL, HepRep, DAWN and VRML. They all have good features, OpenGL provides graphic output without an intermediate file. HepRep provides menus to assist the user. DAWN provides high quality plots and even for large files produces output quickly. VRML uses the smallest disk space for intermediate files. Large experiments at Fermilab will want to write their own display. They should proceed to make this display graphics independent. Medium experiment will probably want to use HepRep because of it's menu support. Smaller scale experiments will want to use OpenGL in the spirit of having immediate response, good quality output and keeping things simple.

Beretvas, Andy; /Fermilab

2005-10-01

404

UWB dual burst transmit driver  

DOEpatents

A dual burst transmitter for ultra-wideband (UWB) communication systems generates a pair of precisely spaced RF bursts from a single trigger event. An input trigger pulse produces two oscillator trigger pulses, an initial pulse and a delayed pulse, in a dual trigger generator. The two oscillator trigger pulses drive a gated RF burst (power output) oscillator. A bias driver circuit gates the RF output oscillator on and off and sets the RF burst packet width. The bias driver also level shifts the drive signal to the level that is required for the RF output device.

Dallum, Gregory E. (Livermore, CA); Pratt, Garth C. (Discovery Bay, CA); Haugen, Peter C. (Livermore, CA); Zumstein, James M. (Livermore, CA); Vigars, Mark L. (Livermore, CA); Romero, Carlos E. (Livermore, CA)

2012-04-17

405

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

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

Diagnesia: A Prototype of a Decision Support System for Anesthetists  

Microsoft Academic Search

The complexity of modern anesthesia procedures requires the development of sophisticated workstations with built-in decision support systems having smart-alarm capacity. In this paper, methods used by a prototype (Diagnesia) of a decision support system for anesthetists are presented. During surgery, Diagnesia uses patient data recorded to continuously estimate likelihood and unlikelihood of diagnoses, applying arguments for and against the different

John Kizito; Rijksuniversiteit Groningen

2008-01-01

408

Idea generation support system utilizing digital pen and paper  

E-print Network

Idea generation support system utilizing digital pen and paper March 2013 PEN SANGSUBHAN Master at the University of Tsukuba #12;Abstract We propose an idea generation support system utilizing digital pen .................................................................................................... 1 1.1 Role of pen and paper in idea generation process

Tanaka, Jiro

409

GENIE: A decision support system for crisis negotiations  

Microsoft Academic Search

Decision support systems can play a role in improving the ability of decision makers to act as utility maximizers in crisis situations. This paper demonstrates the ability of one such decision support system, GENIE, to help decision makers maximize their objectives in a crisis negotiation. GENIE is described in detail, followed by the presentation of preliminary experimental results evaluating its

Jonathan Wilkenfeld; Sarit Kraus; Kim M. Holley; Michael A. Harris

1995-01-01

410

Development of intelligent parking support system for welfare vehicle  

Microsoft Academic Search

Welfare vehicles are convenient equipments for a senior citizen. Because they have a nonholonomic characteristic, driving them are uneasy. Especially, since the area that can move in the parking lot is limited, the operation is very difficult. To help him parking, an intelligent parking support system by fuzzy control that built in expert's knowledge is developed. This system supports other

Seiji Yasunobu; Keita Kinoshita

2003-01-01

411

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

412

California's Electricity System of the Future: Scenario Analysis in Support  

E-print Network

California's Electricity System of the Future: Scenario Analysis in Support of Public Scenario Analysis in Support of Public-Interest Transmission System R&D Planning Principal Authors Joseph under Contract No. DE-AC03-76SF00098. ERNEST ORLANDO LAWRENCE BERKELEY NATIONAL LABORATORY #12;Scenario

413

Support Systems of Mothers of Mentally Retarded Children.  

ERIC Educational Resources Information Center

A study was conducted with a sample of 80 black mothers of mildly to profoundly mentally retarded children in the Pretoria, South Africa, townships of Atteridgeville and Mamelodi. The study sought to identify support systems utilized by the mothers, identify latent systems that could be supportive to the mothers, ascertain the extent to which…

Chinkanda, E. N.

414

Architecture and life support systems for a rotating space habitat  

Microsoft Academic Search

Life Support Systems are critical to sustain human habitation of space over long time periods. As orbiting space habitats become operational in the future, support systems such as atmo-sphere, food, water etc. will play a very pivotal role in sustaining life. To design a long-duration space habitat, it's important to consider the full gamut of human experience of the environment.

Gaurav Misra

2010-01-01

415

An integrated emergency management decision support system for hurricane emergencies  

Microsoft Academic Search

Hurricane Andrew has taught Florida a deadly and expensive lesson. Once again, we have been reminded how unprepared we are for natural disasters. In this paper we present a conceptual framework for an effective, integrated, and modular decision support system (DSS) for hurricane emergency management. As an important component of this decision support system, we have been developing a PC-based

Suleyman Tufekci

1995-01-01

416

Automation and Accountability in Decision Support System Interface Design  

ERIC Educational Resources Information Center

When the human element is introduced into decision support system design, entirely new layers of social and ethical issues emerge but are not always recognized as such. This paper discusses those ethical and social impact issues specific to decision support systems and highlights areas that interface designers should consider during design with an…

Cummings, Mary L.

2006-01-01

417

A Decision Support System for chemical incident information  

E-print Network

S stems There are different schools of thought regarding the evolution of Decision Support Systems [16]. The most popular theory regarding the origin of DSS traces its evolution from Electronic Data Processing to Management Information Systems... and finally to Decision Support System [16]. Electronic Data Processing (EDP) was the earliest form of electronic data processing [16]. EDP was useful for file-processing and data storage of the departments in the organization [16]. This system...

Sharma, Gaurav

2002-01-01

418

SystemC: a modeling platform supporting multiple design abstractions  

Microsoft Academic Search

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

Preeti Ranjan Panda

2001-01-01

419

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

420

14 CFR 417.307 - Support systems.  

Code of Federal Regulations, 2014 CFR

...113 that apply data loss flight times and the planned safe flight state...of applying the data loss flight times in the event that the digital countdown...system that is synchronized to a universal time coordinate. The system must:...

2014-01-01

421

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

422

Decision support system for high temperature electronics  

Microsoft Academic Search

Small signal electronics have traditionally been designed to operate at temperatures below 85°C. This has become a severe constraint in the development of electronic systems for next generation products, such as the hybrid electric vehicle, and the high speed civil transport. Recent advances in components and packaging material technology have now made possible the design of electronic systems which will

Patrick McCluskey; Michael Osterman; Ritesh Jain; Nivedan Tiwari; Richard Grzybowski; Ted Lin; Jeff Benoit

1998-01-01

423

Control Systems Cyber Security Standards Support Activities  

SciTech Connect

The Department of Homeland Security’s Control Systems Security Program (CSSP) is working with industry to secure critical infrastructure sectors from cyber intrusions that could compromise control systems. This document describes CSSP’s current activities with industry organizations in developing cyber security standards for control systems. In addition, it summarizes the standards work being conducted by organizations within the sector and provides a brief listing of sector meetings and conferences that might be of interest for each sector. Control systems cyber security standards are part of a rapidly changing environment. The participation of CSSP in the development effort for these standards has provided consistency in the technical content of the standards while ensuring that information developed by CSSP is included.

Robert Evans

2009-01-01

424

Commonality analysis for exploration life support systems  

E-print Network

Commonality, defined practically as the use of similar technologies to deliver similar functions across a range of different complex systems, offers opportunities to improve the lifecycle costs of portfolios of complex ...

Cunio, Phillip M

2008-01-01

425

CURVE NEGOTIATION: IDENTIFYING DRIVER BEHAVIOR AROUND CURVES WITH THE DRIVER PERFORMANCE DATABASE  

Microsoft Academic Search

Summary: Approximately one quarter of all accidents outside city limits occur while driving around curves, where assistance systems could prevent the driver from negotiating curves with excessive speed. This study argues that the parameterizing of a Driving Assistant System could be realized with data from realistic, noncritical driving behavior offered by Naturalistic Driving Studies. The Driver Performance Database presented in

Anna Mikolajetz; Matthias J. Henning; Axel Tenzer; Robert Zobel; Josef F. Krems; Tibor Petzoldt

426

Life Support System Technologies for NASA Exploration Missions  

NASA Technical Reports Server (NTRS)

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

Ewert, Michael K.

2007-01-01

427

ERP System Audit a Control Support For Knowledge Management  

Microsoft Academic Search

The ERP system supports most of the business system that maintains in a single database the data needed for a variety of business functions such as Manufacturing, SCM, Financials, Projects, Human Resources and CRM; the audit of this systems is necessary in order to give reasonable assurance to the company on its core system. Obtained evidence evaluation can ensure whether

Cristian AMANCEI; Traian SURCEL

2008-01-01

428

Using Ontologies for Adaptive Navigation Support in Educational Hypermedia Systems  

Microsoft Academic Search

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

Pythagoras Karampiperis; Demetrios Sampson

2004-01-01

429

The cognitive ergonomics of knowledge-based design support systems  

Microsoft Academic Search

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

Tamara Sumner; Nathalie Bonnardel; Benedikte Harstad Kallak

1997-01-01

430

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

431

Negotiation Support and E-negotiation Systems: An Overview  

Microsoft Academic Search

With negotiation being an often difficult process involving complex problems, computer-based support has been employed in\\u000a its various phases and tasks. This article provides a historical overview of software used to support negotiations, aid negotiators,\\u000a and automate one or more negotiation activities. First, it presents several system classifications, including implemented\\u000a models, system architectures, and configurations of various systems interacting with

Gregory E. Kersten; Hsiangchu Lai

2007-01-01

432

Integration of a satellite ground support system based on analysis of the satellite ground support domain  

NASA Technical Reports Server (NTRS)

This analysis defines a complete set of ground support functions based on those practiced in real space flight operations during the on-orbit phase of a mission. These functions are mapped against ground support functions currently in use by NASA and DOD. Software components to provide these functions can be hosted on RISC-based work stations and integrated to provide a modular, integrated ground support system. Such modular systems can be configured to provide as much ground support functionality as desired. This approach to ground systems has been widely proposed and prototyped both by government institutions and commercial vendors. The combined set of ground support functions we describe can be used as a standard to evaluate candidate ground systems. This approach has also been used to develop a prototype of a modular, loosely-integrated ground support system, which is discussed briefly. A crucial benefit to a potential user is that all the components are flight-qualified, thus giving high confidence in their accuracy and reliability.

Pendley, R. D.; Scheidker, E. J.; Levitt, D. S.; Myers, C. R.; Werking, R. D.

1994-01-01

433

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

434

Using Visualization in Cockpit Decision Support Systems  

SciTech Connect

Beamline 7.2 of the Advanced Light Source (ALS) at the Lawrence Berkeley National Laboratory (LBNL) is a beam diagnostics system that uses the synchrotron radiation emitted by a dipole magnet. It consists of two branches; in the first one the x-ray portion of the radiation is used in a pinhole camera system for measuring the transverse profile of the beam. The second branch is equipped with an x-ray beam position monitor (BPM) and with a multipurpose port where the visible and the far-infrared part of the radiation can be used for various applications such as bunch length measurements and IR coherent synchrotron radiation experiments. The pinhole system has been operating successfully since the end of 2003. The installation of the second branch has been completed recently and the results of its commissioning are presented in this paper together with examples of beam measurements performed at BL 7.2.

Aragon, Cecilia R.

2005-07-01

435

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. PMID:24672309

Ye, Yanming; Yin, Jianwei; Xu, Yueshen

2014-01-01

436

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

437

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

438

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 major fatigue critical components, important technology areas were identified.

Trautwein, W.

1977-01-01

439

Crop Simulation Models and Decision Support Systems  

Technology Transfer Automated Retrieval System (TEKTRAN)

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

440

Decision Support System for Fighter Pilots  

E-print Network

the aircraft. Such a missile will almost always be either radar guided or heat seeking. It will be launched.g. enemy radar systems. If the enemy detects the aircraft a missile may be fired to seek and destroy. The probability of a missile being detected by on- board sensors depends on the type of missile. If a missile

441

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

NASA Technical Reports Server (NTRS)

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

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

2002-01-01

442

How does a collision warning system shape driver's brake response time? The influence of expectancy and automation complacency on real-life emergency braking.  

PubMed

Brake Reaction Time (BRT) is an important parameter for road safety. Previous research has shown that drivers' expectations can impact RT when facing hazardous situations, but driving with advanced driver assistance systems, can change the way BRT are considered. The interaction with a collision warning system can help faster more efficient responses, but at the same time can require a monitoring task and evaluation process that may lead to automation complacency. The aims of the present study are to test in a real-life setting whether automation compliancy can be generated by a collision warning system and what component of expectancy can impact the different tasks involved in an assisted BRT process. More specifically four component of expectancy were investigated: presence/absence of anticipatory information, previous direct experience, reliability of the device, and predictability of the hazard determined by repeated use of the warning system. Results supply indication on perception time and mental elaboration of the collision warning system alerts. In particular reliable warning quickened the decision making process, misleading warnings generated automation complacency slowing visual search for hazard detection, lack of directed experienced slowed the overall response while unexpected failure of the device lead to inattentional blindness and potential pseudo-accidents with surprise obstacle intrusion. PMID:25700125

Ruscio, Daniele; Ciceri, Maria Rita; Biassoni, Federica

2015-04-01

443

Reliability Growth in Space Life Support Systems  

NASA Technical Reports Server (NTRS)

A hardware system's failure rate often increases over time due to wear and aging, but not always. Some systems instead show reliability growth, a decreasing failure rate with time, due to effective failure analysis and remedial hardware upgrades. Reliability grows when failure causes are removed by improved design. A mathematical reliability growth model allows the reliability growth rate to be computed from the failure data. The space shuttle was extensively maintained, refurbished, and upgraded after each flight and it experienced significant reliability growth during its operational life. In contrast, the International Space Station (ISS) is much more difficult to maintain and upgrade and its failure rate has been constant over time. The ISS Carbon Dioxide Removal Assembly (CDRA) reliability has slightly decreased. Failures on ISS and with the ISS CDRA continue to be a challenge.

Jones, Harry W.

2014-01-01

444

A Situation-Adaptive Lane-Keeping Support System: Overview of the SAFELANE Approach  

Microsoft Academic Search

Going beyond standard lane-departure-avoidance systems, this paper addresses the development of a system that is able to deal with a large set of different traffic situations. Its foundation lies on a thoroughly constituted environment detection through which a decision system is built. From the output of the decision module, the driver is warned or corrected through suited actuators that are

Angelos Amditis; Matthaios Bimpas; George Thomaidis; Manolis Tsogas; Mariana Netto; Saïd Mammar; Achim Beutner; Nikolaus Möhler; Tom Wirthgen; Stephan Zipser; Aria Etemad; Mauro Da Lio; Renzo Cicilloni

2010-01-01

445

System Administration Support/SWORDS G2  

NASA Technical Reports Server (NTRS)

The Soldier-Warfighter Operationally Responsive Deployer for Space (SWORDS) rocket is a dedicated small satellite launcher that will minimize danger and complexity in order to allow soldiers in the field to put payloads of up to 25kg into orbit from the field. The SWORDSG2 project is the development of a model, simulation, and ultimately a working application that will control and monitor the cryogenic fluid delivery to the SWORDS rocket for testing purposes. To accomplish this, the project is using the programming language environment Gensym G2. The environment is an all-inclusive application that allows development, testing, modeling, and finally operation of the unique application through graphical and programmatic methods. In addition, observation of the current cryogenic fluid delivery system in the Kennedy Space Center Cry Lab has allowed me to gain valuable experience of fluid systems and propelant delivery that is valuable to our team when developing amd modeling our own system.The ultimate goal of having a test-ready application to show to the heads of the project, and demonstrating G2's capabilities, by late 2014 will require hard work and intense study and understanding of not only the programming aspect but also the physical phenomena we want to model, observe, and control.

Dito, Scott Joseph

2014-01-01

446

Decision Support Systems - Technical Prerequisites and Military Requirements  

E-print Network

Decision Support Systems in the sense of online alternative course of action (ACAO) development and analysis as well as tools for online Development of Doctrine and Tactics Techniques, and Procedures (DTTP) for support to operations make it possible to evaluate and forecast the command and control processes and the performance capabilities of the friendly and enemy forces and other decision relevant factors, support the military commander (brigade and higher) and his staff in their headquarter by increasing their ability to identify own opportunities, support all phases of the command and control process, use computer based, automatic and closed models, that can be adapted to the current situation. Objective of the paper is to present the results of studies conducted in Germany on behalf of the German Ministry of Defense with the objective to work out the conceptual basis for decision support systems and to evaluate, how this technique will influence the command and control system of the army of the federal a...

Tolk, Andreas

2010-01-01

447

Designing Electronic Performance Support Systems: Models and Instructional Strategies Employed  

ERIC Educational Resources Information Center

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

Nekvinda, Christopher D.

2011-01-01

448

Human Health and Support Systems Capability Roadmap Progress Review  

NASA Technical Reports Server (NTRS)

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

Grounds, Dennis; Boehm, Al

2005-01-01

449

TASC: A Microcomputer Support System for Persons with Cognitive Disabilities.  

ERIC Educational Resources Information Center

Describes the Telematics Applications Supporting Cognition (TASC) project, an international collaboration funded by the European Union to develop a microcomputer-based system supporting decision-making, planning, and communication for persons with cognitive disabilities. Considers a flexible, modular solution to meet the needs of persons with…

Ager, Alastair; Aalykke, Soren

2001-01-01

450

An urban containment planning support system for Beijing  

Microsoft Academic Search

Urban containment policies, including urban growth boundaries, urban service boundaries and greenbelts, have been extensively discussed worldwide for managing urban growth. This paper focuses on the issues associated with supporting an urban containment plan and its application in China using a planning support system. The background is that the urban containment plan has been enacted as a new component of

Ying Long; Zhenjiang Shen; Qizhi Mao

2011-01-01

451

Image-guided decision support system for pathology  

Microsoft Academic Search

We present a content-based image retrieval sys- tem that supports decision making in clinical pathology. The image-guided decision support system locates, retrieves, and displays cases which exhibit morphological profiles con- sistent to the case in question. It uses an image database containing 261 digitized specimens which belong to three classes of lymphoproliferative disorders and a class of heal- thy leukocytes.

Dorin Comaniciu; Peter Meer; David J. Foran

1999-01-01

452

PRO forma: a general technology for clinical decision support systems  

Microsoft Academic Search

The need for flexible and well understood knowledge representations which are capable of capturing clinical guidelines and protocols for decision support systems is widely recognised. The PROforma method for specifying clinical guidelines and protocols comprises a graphical notation for their design, and a formal knowledge representation language to enable them to be executed by a computer to support the management

John Fox; Nicky Johns; Colin Lyons; Ali Rahmanzadeh; Richard Thomson; Peter Wilson

1997-01-01

453

Radio Resource Management for Cellular CDMA Systems Supporting  

E-print Network

Radio Resource Management for Cellular CDMA Systems Supporting Heterogeneous Services Dongmei Zhao radio resource management (RRM) scheme for the support of packet-switched transmission in cellular CDMA. The proposed resource management scheme is comprised of a combination of power distribution, rate allocation

Shen, Xuemin "Sherman"

454

Decision Support System for integrated door-to-door delivery  

E-print Network

Decision Support System for integrated door-to-door delivery: Planning and Control in Logistic and Education. It aims at improving several problem areas affecting freight distri- bution in urban areas management support, effective and efficient inter- connection. Criteria are the levels logistics service

Ducatelle, Frederick

455

Controlled Ecological Life Support System (CELSS) modeling  

NASA Technical Reports Server (NTRS)

Attention is given to CELSS, a critical technology for the Space Exploration Initiative. OCAM (object-oriented CELSS analysis and modeling) models carbon, hydrogen, and oxygen recycling. Multiple crops and plant types can be simulated. Resource recovery options from inedible biomass include leaching, enzyme treatment, aerobic digestion, and mushroom and fish growth. The benefit of using many small crops overlapping in time, instead of a single large crop, is demonstrated. Unanticipated results include startup transients which reduce the benefit of multiple small crops. The relative contributions of mass, energy, and manpower to system cost are analyzed in order to determine appropriate research directions.

Drysdale, Alan; Thomas, Mark; Fresa, Mark; Wheeler, Ray

1992-01-01

456

GCS support/development system configuration document  

NASA Technical Reports Server (NTRS)

The software programming environment used in the development of Guidance and Control Software (GCS) implementations used in a software error studies experiment conducted by the Research Triangle Institute (RTI) and the NASA-Langley is described. The Radio Technical Commission for Aeronautics RTCA/DO-178A guidelines are fulfilled, and requirements for document number 9 in which the hardware, software, and processes used to develop and maintain the software for the GCS project are described. The software programming environment for GCS largely consists of tools that are included in Digital Equipment Corporations software layered product library or are a part of the VAX/VMS baseline system.

Lowman, Douglas S.

1990-01-01

457

The Spartan attitude control system - Ground support computer  

NASA Technical Reports Server (NTRS)

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

Schnurr, R. G., Jr.

1986-01-01

458

Infrastructure support for Clinical Information Systems  

SciTech Connect

Executive Summary: For the past 5 years, Adventist Health has been implementing a clinical information system, titled Project IntelliCare, throughout its 19 hospitals. To successfully do this, a commitment was made to ensure continuous availability of vital patient health information to the local hospitals. This commitment required a centralized data center with sufficient capacity and a backup data center to be used in case of technical software or natural disaster where interruptions could occur. The DOE grant provided financial assistance to purchase equipment to increase the capacity of an existing data center, along with purchase of more sophisticated software for the data center thus providing a reduction in time that information is unavailable to the local hospitals when hardware or software problems occur. Relative to public good, this translates into increased safety and convenience for the patients we serve because their electronic medical records are current and available a higher percentage of the time.

McGovern, Greg, A.

2007-06-15

459

An Analysis of Hybrid Life Support Systems for Sustainable Habitats  

E-print Network

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

Shaw, Margaret Miller

2014-01-01

460

Support System Effects on the NASA Common Research Model  

NASA Technical Reports Server (NTRS)

An experimental investigation of the NASA Common Research Model was conducted in the NASA Langley National Transonic Facility and NASA Ames 11-Foot Transonic Wind Tunnel Facility for use in the Drag Prediction Workshop. As data from the experimental investigations was collected, a large difference in moment values was seen between the experimental and the computational data from the 4th Drag Prediction Workshop. This difference led to the present work. In this study, a computational assessment has been undertaken to investigate model support system interference effects on the Common Research Model. The configurations computed during this investigation were the wing/body/tail=0deg without the support system and the wing/body/tail=0deg with the support system. The results from this investigation confirm that the addition of the support system to the computational cases does shift the pitching moment in the direction of the experimental results.

Rivers, S. Melissa B.; Hunter, Craig A.

2012-01-01

461

Automation and Accountability in Decision Support System Interface Design  

E-print Network

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

Cummings, M. L.

2006-01-01

462

Guiding the development of a controlled ecological life support system  

NASA Technical Reports Server (NTRS)

The workshop is reported which was held to establish guidelines for future development of ecological support systems, and to develop a group of researchers who understand the interdisciplinary requirements of the overall program.

Mason, R. M. (editor); Carden, J. L. (editor)

1979-01-01

463

Strategic Decision Making and Group Decision Support Systems.  

ERIC Educational Resources Information Center

Institutional strategic decisions require the participation of every individual with a significant stake in the solution, and group decision support systems are being developed to respond to the political and consensual problems of collective decision-making. (MSE)

McGrath, Michael Robert

1986-01-01

464

Designing a Decision-Support System for Enrollment Management.  

ERIC Educational Resources Information Center

The conceptual framework, design, and implementation plan for building a decision-support system for enrollment management at a private university are outlined, including information about the computer hardware and software used in implementation. (Author/MSE)

Glover, Robert H.

1986-01-01

465

Large space telescope, phase A. Volume 5: Support systems module  

NASA Technical Reports Server (NTRS)

The development and characteristics of the support systems module for the Large Space Telescope are discussed. The following systems and described: (1) thermal control, (2) electrical, (3) communication and data landing, (4) attitude control system, and (5) structural features. Analyses of maintainability and reliability considerations are included.

1972-01-01

466

Hardware Support for Secure Processing in Embedded Systems  

E-print Network

Hardware Support for Secure Processing in Embedded Systems Shufu Mao and Tilman Wolf, Senior Member, IEEE Abstract--The inherent limitations of embedded systems make them particularly vulnerable control flow information. Index Terms--Embedded system security, processing monitor, security enforcement

Shenoy, Prashant

467

Field Evaluation of a Prototype Laser Safety Decision Support System  

Microsoft Academic Search

A field evaluation of a decision support system prototype is described. The system is designed to aid the decision making of laser safety hazard assessors and laser manufacturers. The aims of the evaluation were to establish the usefulness and usability of the system, and to indicate where design changes might be needed. Three complementary methods namely observation evaluation, expert evaluation,

Anthony Clarke; Basil Soufi; Luise Vassie; John Tyrer

1995-01-01

468

Johnson Space Center's Regenerative Life Support Systems Test Bed  

NASA Technical Reports Server (NTRS)

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

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

1996-01-01

469

Controlled Ecological Life Support Systems: Natural and Artificial Ecosystems  

NASA Technical Reports Server (NTRS)

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

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

1989-01-01

470

Overview of NASA's 1991 Life Support Systems Analysis Workshop  

NASA Technical Reports Server (NTRS)

Results from the first NASA Life Support Systems Analysis Workshop conducted by the Office of Aeronautics and Space Technology on June 24-27, 1991, in Milwaukee, Wisconsin are reviewed. Attention is also given to a brief review of the second workshop held on May 12-14, 1992. It is noted that the workshops defined the key issues and characterized the status of current developments in life support systems analysis.

Evanich, Peggy L.; Seshan, P. K.; Lin, Chin; Bilardo, Vincent; Crabb, Thomas M.

1992-01-01

471

Emerging issues in sales forecasting and decision support systems  

Microsoft Academic Search

There are two distinct groups of emerging issues in the area of sales forecasting and decision support systems: methodological\\u000a issues and implementational issues. This paper discusses each of them. The discussion of implementational issues includes\\u000a some results of a survey of forecasting practice. The paper serves as a preface to the special section on sales forecasting\\u000a and decision support systems

Essam Mahmoud; Gillian Rice; Naresh Malhotra

1988-01-01

472

PEGASUS: designing a system for supporting group activity  

Microsoft Academic Search

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 objectives: enhancing metacognition (students and teachers are

Maria Kyprianidou; Stavros Demetriadis; Andreas Pombortsis; George Karatasios

2009-01-01

473

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

NASA Technical Reports Server (NTRS)

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

Maryland, J. E., Jr.

1985-01-01

474

Establishing a Service Support Knowledge Base System: A Case Study  

Microsoft Academic Search

IT service providers are continuously seeking new tools and methods to improve the performance of customer support and to reduce the support and maintenance costs. Self-service tools, such as knowledge base systems, provide customers and users solutions to their problems 24h\\/7d. However, many IT service providers do not have experience on how to implement a knowledge base system for service

Marko Jäntti; Jaakko Kalliokoski; Kyösti Vähäkainu; Tuomas Honkala; Tarja Hakkarainen

2010-01-01

475

Supporting GGOS through the Crustal Dynamics Data Information System  

NASA Astrophysics Data System (ADS)

The Crustal Dynamics Data Information System (CDDIS) is NASA's active archive for space geodesy data, products, and information. The system has provided data archiving and distribution support to a global research community for over thirty years. The CDDIS archive consists of GNSS, laser ranging, VLBI, and DORIS data sets and products derived from these data. The system is supported through NASA's Earth Observing System Data and Information System (EOSDIS) and is one of its distributed data centers, serving a wide, diverse user community. The CDDIS is a key data center supporting the geometric services of the International Association of Geodesy and therefore is an active participant in the Global Geodetic Observing System (GGOS). The CDDIS has recently developed new capabilities to help users with data discovery and has increased its archiving capabilities in several areas. The CDDIS has expanded its archive to support the IGS Multi-GNSS Experiment (MGEX) and has tested capabilities to support the activities of the IGS Real-Time IGS Service. This poster will include background information about the system and its user communities, archive contents and updates, enhancements for data discovery, new system architecture, and future plans.

Noll, Carey; Michael, Patrick; Dube, Maurice; Pollack, Nathan; Tyahla, Lori; Limbacher, Rebecca

2014-05-01