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林鉉敎,李智秀 金烏工科大學校 1987 論文集 Vol.8 No.-
The stereophotogrammetry technique using double camera concerns the acquisition of exact coordinates of objects. But it criticized that the initial installation cost is high, and calibration and reconstruction procedure is tedious. For the analysis of human postures in sitting work, however, global understanding of coordinates is sufficient. In this paper, a new method using single camera is proposed. This technique is simple, needs low installation cost, and applicable to the analysis of human postures in sitting work, if several pruning rules are available which are appropriate to the characteristics of work.
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황춘수,장통일,임현교 한국안전학회 2003 한국안전학회지 Vol.18 No.2
In recent years, the Korean Army made use of fork-lifters or conveyors when loading and/or unloading military material in order to prevent accidents and to promote efficiency of military material handling activities. However, in troops smaller than battalions, manual material handling activities are still committed for many reasons. In this thesis, a brand new loading/unloading device for efficient military material handling for manual workers was developed, and its validation study was conducted through objective assessment based on electromyography, subjective assessment based on Body-Map technique developed by Corlett and Bishop, and finally work performance comparison. The results of EMG analysis showed that muscular workload improved by 24% when using the device compared to manual work without the device, and complain of each body part was remarkably reduced. In addition, remarkable effectiveness enhancement was observed in the work performance. Consequently, it could be concluded that ergonomic devices like one developed in this research should he studied further in the ergonomic sense as well as in the economical sense.
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윤상권,장통일,임현교 한국안전학회 2003 한국안전학회지 Vol.18 No.3
An accident involving a boiler can result in a disaster since it handles high-pressurized steam so that it may cause an explosion. Therefore, the boiler is very susceptible to industrial accidents. This thesis aimed to develop counter-plans to prevent industrial accidents involved the boiler. At first, after collecting accident cases involving boilers, a survey on the trait of them was carried out. And, on the other hand, a qualitative analysis was conducted to draw out hazardous components in the boiler itself, and their inherent relative importance was assessed. Through this procedure, 'negligence of unsafe condition' was noted as the major cause for unsafe acts, whereas 'fault in work procedure' for unsafe condition. In the meanwhile, results of a hazard analysis using FMEA technique ranked gas safety devices, a switch preventing gas from under-pressurization, protect relays high. In particular, it was pointed out that the water feeding and steam subsystem has more components in hazard than other subsystems. Considering these analyses results, counter-plans to improve safety management was suggested also.
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