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고영호(Ko young-ho),이기수(Lee gi-su),차관봉(Cha gwan-bong),이석형(Lee shuk-hyung) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
The research will be essential that the method for strengthening safety are safe installations in a hardware portion, a safe running ceremony of the vehicle employee (an engine driver ) and the estimate of the situation which is accurate. In railway car the window wiper which is auxiliary equipment for safe operation is changed the existing manual control method with automatic correspondence precipitation used raindrops censor which can assure the vision of driving. It can be easy to safe driving as might have expected the object. We carried out studies technical review investigation which can accomplish the best suited wiping speed in maintaining an introduction existing system in the manual control system applied the existing train and corresponding to precipitation. The observation fact in the studies can be possible to ensure safety operation. That is, Manual operation method (of the driver) to add the automatic speed adjust function can operate improved window wiper drive system when it rains and , as was expected, it is able to ensure the range of a good railroad driver"s vision and to concentrate in working at rainfall.
환경변화에 따른 일회성 운동이 흰쥐 골격근 내 Heat Shock Proteins 및 골격근 손상인자에
고영호(Ko Young-Ho),윤정수(Yoon Chung-su),하태균(Ha Tae-Geun),김정석(Kim Jeong-Seok) 한국체육과학회 2011 한국체육과학회지 Vol.20 No.3
The purpose of this study is to determine the expression of a acute endurance exercise both in cold(2℃) and hot(34℃) temperatures on the skeletal muscle. The main purpose of this study is to the effects of cold and hot temperatures to the heat shock protein 70, heat shock protein 27 and blood lactate, plasma CK using rats as the exercise. Adult male Sprague-Dawley rats were randomly placed in one of three temperature groups (normal, hot, cold). The treadmill run with an intensity of 26m/min, 10°intensity and soleus(SOL) and extensor digitorum longus(EDL) muscle extracted at 30, 60, 90 min during the exercise. The western blotting analyzed the expression of HSP70 and HSP27 during the exercise, the increased HSP27 protein in the SOL and EDL tissues of the cold, hot and normal temperatures were observed. However, it was observed that only SOL tissues increased HSP70 protein in both cold and hot temperatures. These results implied that increased apoptotic factor by cold and hot temperatures could cause the expression of HSP70 and HSP27 which involve cell damage in early stage of exercise and due to temperatures.