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OBJECTIVE to determine the effects ofback belt use on trunk muscle performance and the association between those performance outcomes with Work-Related Musculoskeletal Disorders (WMSDs). MATERIAL AND METHOD All manual lifting workers in one grocery distribution, warehouse center were interviewed about the history of illness, back injury, WMSDs, lifting(More)
A decision support system for designing effective noise hazard prevention (NHP) strategies is proposed. NHP consists of four modules: (a) database, (b) input, (c) algorithms, and (d) solution. The user can choose among single-, two-, and three-approach solution procedures. Heuristic and genetic algorithms are used to determine appropriate noise controls(More)
An analytical design procedure to determine optimal noise hazard control strategies for industrial facilities is presented. Its objective is to determine a set of appropriate noise controls to eliminate or reduce noise levels so that workers' daily noise exposure does not exceed a permissible level. From a given noise control budget, engineering controls(More)
Three methods of visual display terminal (VDT) workstation adjustment were compared in this study in order to investigate their effects on the operator's seated posture. The first two methods were adjustments made both with and without any suggestion on the correct seated posture. The third method was an adjustment after which the workstation settings were(More)
The paper presents design and development of an automatic warning system to be used in locations with fluctuating background noises. This adaptive auditory warning system was designed to detect the level of background noises and be able to generate an audio warning with a sound level higher than the background noises. The warning level was automatically(More)
An emergency medical service (EMed) system is proposed as a means to provide timely on-site medical treatment and transportation to the nearest hospital for Bangkok residents. The EMed system consists of a network of 29 fire stations and 4l hospitals in Bangkok linked by the Central Ambulance Dispatcher (CAD). Two models of the EMed system and two levels of(More)
This paper presents an analytic procedure to assist safety practitioners in evaluating the audibility of an existing auditory warning system in their workplaces. Two alarm location models are described: (a) a model with an unknown signal sound level, and (b) a model with a known signal sound level. A heuristic algorithm to determine a minimum number of(More)
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