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최동영,최재칠,한종욱,Choi, Dong Young,Choi, Jae Chil,Han, Jong Uk 한국자동차안전학회 2015 자동차안전학회지 Vol.7 No.1
In vehicle development process, durability test should be carried out in field condition. Nowadays there are many customer live there multiple conditions. It makes change of the car's material. Such change causes to lose a bolt. Diversifications of climatic conditions are also a matter of loosening the bolt. To avoid this problem, to identify the cause of the problem, and the solution should be applied. To avoid problems during the durability development test should be measured by the clamping force. Ultrasonic instruments clamping force without affecting the torque can be measured. This instrument is part of the problem by monitoring the clamping force required to obtain objective data.
최동영(Dong Young Choi),최재칠(Jae Chil Choi),한종욱(Jong Uk Han) 한국자동차공학회 2015 한국자동차공학회 부문종합 학술대회 Vol.2015 No.5
In vehicle development process, durability test should be carried out in field condition. there are many customer live there multiple conditions. It makes change of the car`s material. Such change causes to lose a bolt Diversifications of climatic conditions are also a matter of loosening the bolt. To avoid this problem, to identify the cause of the problem, and solution should be applied. To avoid problems during the durability development test should be measured by the clamping force. Ultrasonic instruments clamping force without affecting the torque can be measured. The instrument is part of the problem by monitoring the clamping the clamping fore required to obtain objective data.
성상세포유래 신경영양인자의 자가생성 촉진에 의한 장기적 운동능력 향상 효과
니키타 카티라,최동영,Katila, Nikita,Choi, Dong-Young 대한약학회 2016 약학회지 Vol.60 No.4
We evaluated the effects of single infusion of glial cell derived neurotrophic factor (GDNF) on locomotor activity in aged rats. Enhanced activity for four weeks was accompanied by an increase in sizes of the nigral dopaminergic neurons, areas of their nuclei and cytoplasm. We found that increased level of neurotrophic factors sustained in the striatum up to four weeks. There was significant rise in the level of GDNF mRNA in the striatum following GDNF treatment. These results suggest that exogenous GDNF infusion stimulates expression of itself in the brain which is related to prolonged effects of the neurotrophic factor.
박석천(Park Seok Cheon),최동영(Choi Dong Young),강성용(Kang Sung Yong) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.7
The terrestrial/satellite hybrid network may replace or supply the terrestrial network in some areas or certain applications. For example, it may play a major role in global B-ISDN or in certain areas where the deployment of optical cable is not feasible, especially at the early stage of implementing terrestrial B-ISDN. Furthermore, it can play an important role in the development of B-ISDN due to their features of flexible wide coverage, independent of ground distances and geographical constraints, multiple access and multipoint broadcast. Also, satellite have the capability to supply terrestrial B-ISDN/ATM with flexible links for access networks as well as trunk networks. This paper describes the design and verification of the interworking protocol between terrestrial B-ISDN and satellite network. For the verification, the designed interworking protocol is modeled by Petri-net and the model is analyzed by reachability tree.