Driver Program Research Articles

Understanding the many-body expansion for large systems. I. Precision considerations.

Electronic structure methods based on low-order "n-body" expansions are an increasingly popular means to defeat the highly nonlinear scaling of ab initio quantum chemistry calculations, taking advantage of the inherently distributable nature of the numerous subsystem calculations. Here, we examine how the finite precision of these subsystem calculations manifests in applications to large systems, in this case, a sequence of water clusters ranging in size up to (H₂O)₄₇. Using two different computer implementations of the n-body expansion, one fully integrated into a quantum chemistry program and the other written as a separate driver routine for the same program, we examine the reproducibility of total binding energies as a function of cluster size. The combinatorial nature of the n-body expansion amplifies subtle differences between the two implementations, especially for n ⩾ 4, leading to total energies that differ by as much as several kcal/mol between two implementations of what is ostensibly the same method. This behavior can be understood based on a propagation-of-errors analysis applied to a closed-form expression for the n-body expansion, which is derived here for the first time. Discrepancies between the two implementations arise primarily from the Coulomb self-energy correction that is required when electrostatic embedding charges are implemented by means of an external driver program. For reliable results in large systems, our analysis suggests that script- or driver-based implementations should read binary output files from an electronic structure program, in full double precision, or better yet be fully integrated in a way that avoids the need to compute the aforementioned self-energy. Moreover, four-body and higher-order expansions may be too sensitive to numerical thresholds to be of practical use in large systems.

Design of Vehicle Terminal Based on Android System

CAN-bus is one of the most widely used vehicular buses, so the CAN-bus driver program was programmed to the vehicle terminal based on Android operating system in this paper. The programmed CAN-bus driver program included application software framework of car terminal, implementation of CAN-bus driver module, and call of Android hardware abstraction layer (HAL), etc. The research makes the vehicle terminal connect with the vehicle body network tightly, optimize the driving experience and the driving safety.

Driving Rehabilitation Programs for Older Drivers in the United States

ABSTRACTThe objective of this study was to describe the services, referral and reporting practices, and barriers to utilization of driver rehabilitation programs (DRPs) for older drivers. Identified through two national association databases, 204 DRPs completed an online survey. DRP availability varies, with a median of one program per 64,151 older adults (range: 1,006–676,981). The median cost for a complete evaluation was $400; 36% of DRPs reported no third-party reimbursement. Participants thought barriers to DRP use include cost/reimbursement, lack of program awareness, and issues with evaluator training. Models for insurance reimbursement, and increased awareness of program benefits by healthcare providers and older drivers, are needed.

Case Study on Worksite Health and Wellness Program for Commercial Motor Vehicle Drivers

Case Study on Worksite Health and Wellness Program for Commercial Motor Vehicle Drivers

An approach to novice driver training

IntroductionBased upon neuroscience findings relevant to emerging adults, this paper considers 12 cognitive and behavioural features of young drivers’ performance and possible ameliorative strategies to address them. Literature findingsEvidence is explored on the extent to which each has been identified and evaluated in respect of young driver training and education in driving performance. The paper considers the extent to which each of these contributions to young driver safety is feasible and has been adopted, identifying those for which further development and implementation is required. DiscussionBased upon neuroscience findings as well as the evidence summarised in this paper, it concludes with an outline of an –“ideal”– training program for young novice drivers.

Should Smaller Commercial Trucks Be Subject to Safety Regulations?

Abstract Motor-carrier safety is a critical and challenging issue in the US motor-carrier industry. Despite the vast safety improvements in the industry, a continuing challenge is the economic costs associated with regulatory oversight of safety inspection programs. The purpose of this article is to compute the costs and associated benefits of the Federal Motor Carrier Safety Administration's driver and vehicle inspection program of commercial motor vehicles in the 10,001- to 26,000-lb category. Our analysis reveals that for every dollar spent in program costs, the benefits are $8.86.

Implementation of a Safe Driver Program

Occupational and environmental health nurses can assist in developing a driver safety program to increase awareness of the effects of impaired driving.

Implementation of a Safe Driver Program

Occupational and environmental health nurses can assist in developing a driver safety program to increase awareness of the effects of impaired driving.

The S3C2440’s Camera Interface Driver Development Based on Embedded Linux

In order to realize video capture based on the S3C2440 processor on the platform of embedded Linux, the paper adopts the V4L2 as the driver model and explains in detail the implementation progress of V4L2 driver model on the Linux platform. On the basis of the existing V4L2 model and interface standard, using direct memory access mode, design the driver program of S3C2440 camera interface, the drivers are tested through the LCD display and the single frame capture, the results show that the design meets the practical need.

The Design of Online Water Pollution Monitoring System for Poultry Rearing

This paper proposes the construction of real-time online water pollution monitoring system for poultry rearing which applies network nodes in the Wireless Sensor Network to monitor the water quality in the poultry rearing areas. The wireless packet communications technology and broadband services are used to transmit the data in long distance. The system can fulfill the functions of online real-time water quality inquire via Web, management control, data collection, and alert. The system software designs the Web network optimization protocols, system monitoring platform, long-distance parameter configuration, and driver programs. The simulation and experiment illustrate the system can achieve 100% successful communication rates. The access speeds in the networks are 5~8 times of those in traditional network. The wireless sensor networks and the long-time monitoring can work normally and reliably in which the speeds can meet the requirements for real-time monitoring. Its suitable for the online real-time water pollution monitoring in the poultry rearing areas.

Evaluating the effectiveness of a post-license education program for young novice drivers in Belgium

The disproportionately large number of traffic accidents of young novice drivers highlights the need for an effective driver education program. The Goals for Driving Education (GDE) matrix shows that driver education must target both lower and higher levels of driver competences. Research has indicated that current education programs do not emphasize enough the higher levels, for example awareness and insight. This has raised the importance of insight programs. On the Road (OtR), a Flemish post-license driver education program, is such an insight program that aims to target these higher levels. The program focus is on risky driving behavior like speeding and drink driving. In addition, the program addresses risk detection and risk-related knowledge. The goal of the study was to do an effect evaluation of this insight program at immediate post-test and 2 months follow-up. In addition, the study aimed to generalize the results of this program to comparable programs in order to make usable policy recommendations. A questionnaire based on the Theory of Planned Behavior (TPB) was used in order to measure participants’ safety consciousness of speeding and drink driving. Moreover, we focused on risk detection and risk-related knowledge. Participants (N=366) were randomly assigned to a baseline—follow-up group or a post-test—follow-up group.Regarding speeding and driving, we found OtR to have little effect on the TPB variables. Regarding risk detection, we found no significant effect, even though participants clearly needed substantial improvement when stepping into the program. Regarding risk-related knowledge, the program did result in a significant improvement at post-test and follow-up. It is concluded that the current program format is a good starting point, but that it requires further attention to enhance high level driving skills. Program developers are encouraged to work in a more evidence-based manner when they select target variables and methods to influence these variables.

An outcome evaluation of the ‘Skipper’ designated driver program

The general aim of designated driver programs is to reduce the level of drink driving by encouraging potential drink drivers to travel with a driver who has abstained from (or at least limited) consuming alcohol. Designated driver programs appear to be quite widespread around the world, however a limited number have been subject to rigorous evaluation. This paper reports results from an outcome evaluation of a designated driver program called ‘Skipper’, which was trialled in a provincial city in Queensland, Australia. The outcome evaluation included surveys three weeks prior to (baseline), four months following (1st follow-up), and 16 months following (2nd follow-up) the commencement of the trial in both the ‘intervention area’ (baseline, n=202; 1st follow-up, n=211; 2nd follow-up, n=200) and a ‘comparison area’(baseline, n=203; 1st follow-up, n=199; 2nd follow-up, n=201); and a comparison of random breath testing and crash data before and after the trial. The survey results indicate that awareness of the program in the intervention area was quite high four months following its introduction and that this was maintained at 16 months. The results also suggest that the ‘Skipper’ program and the related publicity had positive impacts on behaviour with an increase in the proportion of people participating in designated driver as a passenger. It is less clear, however, whether the ‘Skipper’ program impacted on other behaviours of interest, such as drink driving or involvement in alcohol-related crashes. Suggestions for further research and program improvement are discussed as well as limitations of the research.

Restraint Use and Injury Patterns of Young Drivers and Passengers Admitted to Hospitals in New South Wales, Australia

Australians aged 17 to 25 years who travel in cars have a high risk of death and injury in crashes despite mandatory seat belt laws, graduated licensing programs for young drivers, and stringent enforcement. This analysis examined characteristics and injury outcomes of occupants aged 17 to 25 years injured in crashes in New South Wales, Australia. The study focused on restraint use. A linked hospital and police record data set for car occupants admitted to hospitals between 2005 and 2007 was used. Descriptive techniques were used to compare the characteristics of injured occupants of ages 17 to 25 years with those of older occupants and logistic regression was used to test the associations. Only 87% of injured young adults were wearing seat belts. Young adults were more likely than were their older counterparts to be in severe crashes, crashes that involved loss of control, crashes that involved single and older vehicles, and crashes when they were seated in the rear. Young adults also had more head, abdominal or lower torso, and neck injuries and fewer thoracic injuries than did older occupants. Young females were more likely to have been in newer vehicles and less likely to have been in more severe crashes than were young males. Young females also had fewer head injuries and more abdominal or lower torso injuries than young males had. Greater effort is required to increase the use of restraints and modern vehicles among young adults, to encourage industry to improve rear passenger protection, and to increase understanding of the factors that underpin the high involvement of young people in single-vehicle and loss-of-control crashes.

Analyzing an embedded sensor with timed automata in uppaal

An infrared sensor is modeled and analyzed in Uppaal. The sensor typifies the sort of component that engineers regularly integrate into larger systems by writing interface hardware and software. In all, three main models are developed. In the first model, the timing diagram of the sensor is interpreted and modeled as a timed safety automaton. This model serves as a specification for the complete system. A second model that emphasizes the separate roles of driver and sensor is then developed. It is validated against the timing diagram model using an existing construction that permits the verification of timed trace inclusion, for certain models, by reachability analysis (i.e., model checking). A transmission correctness property is also stated by means of an auxiliary automaton and shown to be satisfied by the model. A third model is created from an assembly language driver program, using a direct translation from the instruction set of a processor with simple timing behavior. This model is validated against the driver component of the second timing diagram model using the timed trace inclusion validation technique. The approach and its limitations offer insight into the nature and challenges of programming in real time.

Assisting People with Multiple Disabilities to Improve Computer Typing Efficiency through a Mouse Wheel and On-Screen Keyboard Software

This study aims to find out if the two students with multiple disabilities can learn to use standard keyboard and computer mouse with the intervention of newly developed software. With built-in On-Screen Keyboard (OSK), the user can key in commands by using a standard mouse. Without changing the conventional computer mouse and outward appearance, a new mouse driver program was designed, of which the scroll wheel became a key to quickly click on OSK. With this design, students with multiple disabilities can complete the task fast and correctly by sliding the mouse wheel.

Driving and off‐road impairments underlying failure on road testing in Parkinson's disease

Parkinson's disease (PD) affects driving ability. We aimed to determine the most critical impairments in specific road skills and in clinical characteristics leading to failure on a road test in PD. In this cross-sectional study, certified driving assessment experts evaluated specific driving skills in 104 active, licensed drivers with PD using a standardized, on-road checklist and issued a global decision of pass/fail. Participants also completed an off-road evaluation assessing demographic features, disease characteristics, motor function, vision, and cognition. The most important driving skills and off-road predictors of the pass/fail outcome were identified using multivariate stepwise regression analyses. Eighty-six (65%) passed and 36 (35%) failed the on-road driving evaluation. Persons who failed performed worse on all on-road items. When adjusted for age and gender, poor performances on lateral positioning at low speed, speed adaptations at high speed, and left turning maneuvers yielded the best model that determined the pass/fail decision (R(2) = 0.56). The fail group performed poorer on all motor, visual, and cognitive tests. Measures of visual scanning, motor severity, PD subtype, visual acuity, executive functions, and divided attention were independent predictors of pass/fail decisions in the multivariate model (R(2) = 0.60). Our study demonstrated that failure on a road test in PD is determined by impairments in specific driving skills and associated with deficits in motor, visual, executive, and visuospatial functions. These findings point to specific driving and off-road impairments that can be targeted in multimodal rehabilitation programs for drivers with PD.

택시 운전자를 위한 심뇌혈관질환 예방 프로그램 개발 및 효과

본 연구의 목적은 택시운전자를 위한 심뇌혈관질환 예방 프로그램을 개발하고 생리적 변수(혈압, 혈당, 혈청 지질), 신체적 변수(체지방율, 근지구력, 심폐지구력, 균형)에 미치는 효과를 검증하고자 시도하였다. 본 연구는 프로그램 개발과 효과 평가의 2단계로 진행하였다. 1단계는 택시 운전자를 위한 심뇌혈관질환 예방 프로그램을 개발하기 위해 2011년 3월 2일부터 4월 30일까지 택시 운전자 321명을 대상으로 건강상태 및 생활습관, 건강관리 요구도를 설문조사하였으며 이를 근거로 프로그램을 개발하였다. 2단계는 개발된 프로그램의 효과를 검증하기 위해 2011년 6월 1일부터 10월 5일까지 택시 운전자 51명에게 12주 동안 운동 1주 3회, 질병교육 4회, 영양 상담 2회 실시하였다. 연구결과는 프로그램 전보다 후에 혈압, 혈당, 혈청지질은 통계적으로 유의하게 감소하지 않았으나 체지방율은 유의하게 감소하였으며(t=3.108, p=.003), 근지구력(t=-7.621, p<.001), 심폐지구력(t=-3.388, p=.001), 균형(t=-4.133, p<.001)은 통계적으로 유의하게 증가한 것으로 나타났다. 이와 같은 결과를 근거로 운동, 질환교육, 영양상담으로 구성된 프로그램을 고혈압, 당뇨, 비만 등 심뇌혈관질환 선행질환 유병율이 높은 택시 운전자를 위한 심뇌혈관질환 예방프로그램으로 제안하고자 한다. The purpose of this study was to development and evaluate the effects of cardiocerebrovascular disease prevention program for taxi drivers on physiological variables(blood pressure, blood sugar, serum lipids) and physical variables(body fat, muscle endurance, cardiopulmonary endurance, balance). This study consisted of two phases: developing the program and evaluating its effectiveness. 1 phase, 321 taxi drivers investigated a health condition and a life habit and an educational need and developed a program with the ground which will reach. 2 phases, The effectiveness of the program was tested in October 2011, with 51 taxi driver. The experimental group was given 12 weeks period exercise 1 weeks 3 time, disease education 4 time, 2 nutrition consultations. Although there was no significant reduction in blood pressure, heart rate, blood sugar, serum lipids, there were statistically significant increases in muscle endurance (t=-7.62 p<.001), cardiopulmonary endurance (t=-3.39, p<.001), balance(t=-4.13, p<.001) and decreased body fat (t= -3.11, p<.015) in before compared to after. These findings suggest that an integrated cardiocerebro-vascular disease prevention program improves physical fitness.

Measuring Method for the Signal Distortion of Axial Thrust and Mechanical Vibration Platform

This paper introduced a new mechanical construction for the vibration platform and its working principle. Based on virtual instrument, this paper used sensor, charge amplifier, DAQ(data acquisition card), computer, driver program and LabVIEW software to design signal measuring and analysis system of mechanical vibration platform. This paper used ADAMS simulate vibration platform motion and used LabVIEW calculate distortion degree of acceleration, velocity and position of the vibration platform.

Study and Realization of Stage Lighting Console

At present, most of the stage lighting console designs are based on MCU(Micro Control Unit), but its technique advances, information storage and real-time performances are deficient. This paper proposed that using the technique of ARM-Linux can realize the function of lighting console. This technique adopted S3C2440 processor as the main control chip of the hardware. The transmission of dimming data followed the DMX512 agreements. The low-level driver programs were developed under linux2.6.12, it provided interfaces for upper layer application. Testing results show that this system has perfect dimming performance and scalability, which is easy to upgrade. Our design has important theoretical significance and practical value for stage lighting control.

Research on the Implementation of Porting uC/OS-II on the STM32F103 chip

This work show how to port μCOS-II kernel and to build the ARM cortex-m3 hardware platform. This program researches how to drive the basic external devices. This paper gives a detailed discussion that the driver programs of the underlying hardware is how to be expanded into the uC/OS_II to process the tasks from the platform. The applications can make the STM32 processor work normally by calling the functions of transplanted uC / OS_II. The system is an actual embedded real-time multi-task operating system. The speed of processing multi-tasks is faster than conventional micro-controller’s. Because this system can run the highest priority task without return to the while loop. At last, this paper gives the structure of the main framework, the code of the tasks. DOI: http://dx.doi.org/10.11591/telkomnika.v11i7.2839