http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
외부긴장재의 정착위치에 따른 거더의 인장플랜지 국부응력변화 분석
남정훈(J.H. Nam),최훈(H. Choi),박주경(J.K. Park),이승식(S. Lee),윤순종(S.J. Yoon) 한국구조물진단유지관리학회 2004 한국구조물진단학회 학술발표회논문집 Vol.- No.-
In this paper, we discussed the external prestressing technique to strengthen the deteriorated steel-concrete composite bridge girder In this technique, the tension flange of steel girder needs to make a hole to install anchorage system. In this case, the tension flange of girder may experience the local stress change, stress concentration around the hole, and yielding of the flange material. As a part of continuing research pertaining to the structural behavior of deteriorated steel girder, we focussed on the local stress change of tension flange with holes for anchorage system. From this investigation It was found that the hole drilled on the flange under tension due to self-weight and sustained live load affects the stress change of flange significantly.
외부긴장재의 정착위치에 따른 거더의 인장플랜지 국부응력변화 분석
남정훈 ( J. H. Nam ),최훈 ( H. Choi ),박주경 ( J. K. Park ),이승식 ( S. Lee ),윤순종 ( S. J. Yoon ) 한국구조물진단유지관리공학회 2004 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.8 No.2
In this paper, we discussed the external prestressing technique to strengthen the deteriorated steel-concrete composite bridge girder. In this technique, the tension flange of steel girder needs to make a hole to install anchorage system. In this case, the tension flange of girder may experience the local stress change, stress concentration around the hole, and yielding of the flange material. As a part of continuing research pertaining to the structural behavior of deteriorated steel girder, we focussed on the local stress change of tension flange with holes for anchorage system. From this investigation it was found that the hole drilled on the flange under tension due to self-weight and sustained live load affects the stress change of flange significantly.
일회용 칩을 이용한 전단력의 변화에 따른 혈소판의 기능 검사분석
전희재(H.J. Jeon),임현정(H.J. Lim),남정훈(J.H. Nam),임채승(C.S. Lim),신세현(S.H. Shin) 대한기계학회 2012 대한기계학회 춘추학술대회 Vol.2012 No.11
Platelets play a major role in the maintenance of endothelial integrity and hemostasis. Exposure of platelets to physical stress such as flow-induced shear stress leads to platelet aggregation, which are accelerated in the presence of exogenous agonists. In this study, we have designed a simple and rapid method for measuring the decrease of blood velocity due to the platelet aggregation and the normalized distance of blood in the microchannel. To evaluate the influence of blood flow on platelet aggregation, ADP and collagen were used as agonists and microfluidic device was made from glass acryl, and double adhesive tape. Our device is expected to be capable of distinguishing the pharmacological effects of various antiplatelet agents under physiological shear rate condition.