نتایج جستجو برای: truck scheduling

تعداد نتایج: 73254  

Journal: :international journal of automotive engineering 0
gh.h payeganeh m. esfahanian s. pakdel bonab

in the present paper, the idea of braking energy regeneration and reusing that energy during acceleration for a refuse truck is comprehended. according to their driving cycle, the refuse trucks have a good potential for braking energy regeneration. on the other hand, hydraulic hybrid is a powertrain with high power density which is appropriate for energy regeneration. in the primary stage of th...

2016
Anne Mette Madsen Taif Alwan Anders Ørberg Katrine Uhrbrand Marie Birk Jørgensen

A large number of people work with garbage collection, and exposure to microorganisms is considered an occupational health problem. However, knowledge on microbial exposure at species level is limited. The aim of the study was to achieve knowledge on waste collectors' exposure to airborne inhalable fungal and bacterial species during waste collection with focus on the transport of airborne micr...

Journal: :Medycyna pracy 2015
Rafał Młyński Emil Kozłowski

BACKGROUND The aim of the study was to answer the question what is the audibility area of auditory danger signal emitted by an industrial truck in the noisy environment. MATERIAL AND METHODS The sound pressure level of the signal produced by the truck horn was measured in 12 directions around the truck, at a distance of 2 to 10 m. It was analyzed, in which places around the truck, auditory da...

2014
Edmarlon Girotto Arthur Eumann Mesas Selma Maffei de Andrade Marcela Maria Birolim

The aim of this study was to summarise the scientific evidence on the prevalence of psychoactive substance use and on the factors associated with their intake among truck drivers. A systematic review was performed in the databases PubMed, Scientific Electronic Library Online, Latin American and Caribbean Health Sciences, and Cochrane and 36 cross-sectional studies were identified with quantitat...

Journal: :acta medica iranica 0
abolfazl mozafari department of medical sciences, qom branch, islamic azad university, qom, iran mostafa vahedian department of epidemiology, clinical development research center, qom university of medical sciences, qom, iran siamak mohebi health policy and promotion research center, qom university of medical sciences, qom, iran mohsen najafi department of medical sciences, qom branch, islamic azad university, qom, iran

work-related musculoskeletal disorders (wmsds) are common among drivers and official workers. musculoskeletal disorders are frequent causes of absenteeism in many countries. the aim of this study was to determine the prevalence of musculoskeletal disorders and risk factors associated with these symptoms. a total of 346 workers and truck drivers were participated in this case-control study. all ...

2004
Srinivas Peeta Pengcheng Zhang Weimin Zhou

Freight trucks are an important component of the nation s highway traffic. Due to their physical and operational characteristics, they can significantly impact traffic system performance, safety, and the travel experience of non-truck drivers. Methodological gaps exist in the literature on modeling car–truck interactions that do not result in crashes, especially those resulting from non-truck d...

Journal: :Mathematical Problems in Engineering 2021

In this research, a truck scheduling problem for cross-docking system with multiple receiving and shipping docks is studied. Until recently, single-dock problems are studied mostly. This research focused on the multiple-dock problems. The objective of to determine best docking sequences inbound outbound trucks docks, respectively, which minimize maximal completion time. We propose new hybrid ge...

Journal: :Journal of occupational health 2016
Fan-Yun Lan Yuh-Wehn Liou Kuo-Yuan Huang How-Ran Guo Jung-Der Wang

OBJECTIVE This study aimed to determine if occupational exposure to whole-body vibration is associated with cervical intervertebral disc herniation among container truck drivers. METHODS We conducted a walk-through survey among container truck drivers and unexposed workers. We also measured the vibration hazard of the container truck over the driver's back and seat when the driver was loading...

2007
Peter D. Loeb William A. Clarke

This paper examines the determinants of truck accidents in the United States using a time series data set covering the period 1970–2001. Along with other factors, the effect of the Motor Carrier Act of 1980, which deregulated the trucking industry, is examined for its impact on truck accidents. In addition, the model accounts for the effect railroad freight mileage has on truck accidents. Empir...

2003
Jaimyoung Kwon

We deployed a recently proposed single loop detector based, real-time freeway truck traffic volume estimation algorithm to a County-level traffic database. The scale-up of the algorithm is achieved by adding an extra layer, consisting of a spatial filtering component for removing noise and an aggregation component for efficient analysis. All calculations could be done in real-time to produce a ...

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