From the perspective of an experienced performance analyst, perhaps the most frustrating aspects of server I/O are the lack of hardware measurement data and the architectural limitations imposed by the traditional bus structures. This paper is intended to provide a tutorial on IBA, the InfiniBand Architecture. It will discuss what the IBA will mean for the design of enterprise class servers, th...

This paper provides details of a successful application where the Column Generation Algorithm was used to combine Constraint Programming and Linear Programming. In the past, Constraint Programming and Linear Programming were considered to be two competing technologies that solved similar types of problems. Both these technologies had their strengths and weakness’. This paper shows that the two ...

It is imperative for a transit system to track statistics about their ridership in order to plan bus routes. There exists a wide variety of methods for obtaining these statistics that range from relying on the driver to count people to utilizing cameras and sensors. Utah State University (USU) has undertaken the task of creating a high accuracy people counter using a texel camera. The project h...

The driving range is an important issue of electric car manufacturers and electric vehicle fleet operators, and it directly influences the cost, operation and customer satisfaction. The estimation of Battery performance which has a significant impact on the driving range is an immature technique, however ARTC (Automotive Research & Testing Center) proposed to estimate parameters including energ...

The Americans with Disabilities Act (ADA) specifies guidelines covering the securement system and environment for wheeled mobility device (WhMD) passengers on the public bus system in the United States, referred to as the wheelchair tiedown and occupant restraint system (WTORS). The misuse or disuse of the WTORS system can be a source of injury for WhMD passengers riding the buses. The purpose ...

To determine the risk factors associated with complain of low back pain. A cross sectional study was done from June 2004 until August 2005. Seven hundred and sixty commercial vehicle drivers from 11 bus companies in central, northern and eastern regions in Malaysia participated in this study. Modified Nordic questionnaire was used to determine the prevalence of low back pain; Maestro human vibr...

OBJECTIVES The questionnaire of occupational stress index (OSI) has been popular in the workplace, and it has been tailored for bus drivers in Taiwan. Nevertheless, its outcomes for participants are based on self-evaluations, thus validation by their physiological stress biomarker is warranted and this is the main goal of this study. METHODS A cross-sectional study of sixty-three city bus dri...

The bus driver scheduling problem (BDSP) under study consists in finding a set of duties that covers the bus schedule from a Brazilian public transportation bus company with the objective of minimizing the total cost. A deterministic 2-phase heuristic algorithm is proposed using multiple assignment problems that arise from a model based on a weighted multipartite graph. In the first phase, the ...

The FTA has identified the concept of Bus Rapid Transit as a means to increase the efficiency of transit operations while maintaining transit's proven safety record. According to the FTA website www.fta.dot.gov, " BRT combines the quality of rail transit and the flexibility of buses. It can operate on exclusive transitways, HOV lanes, expressways, or ordinary streets. A BRT system combines inte...

bus accident is a major health problem for bus drivers.  to identify the risk factors involved in bus accidents and to design a model showing the relation between the risk factors and bus driver’s health status, 219 bus drivers who worked for travel agencies in two areas of west and central iran were enrolled into this study.  we used a questionnaire to gather information regarding both the bus...