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趙成山,朴福萬 明知大學校 産業技術硏究所 2003 産業技術硏究所論文集 Vol.22 No.-
Abstract -It bas been performed in three different methods which are 3D, 2D modeling analysis and the categorizing analysis to find the rational structure analysis of the Korean traditional wood building with selecting Buseoksa Muryangsujeon. As a result of this study, the 3D modeling analysis is more accurate analysis method. But, in complex construction, it is very difficult in the process of modeling, and may be seen different behavior from the 3D analysis in the case of earthquake. Therefore the main girder, especially Daeryang, needs to be checked by the categorized analysis. Every member stress except Chobang came out below allowable stress.
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에너지 손실을 고려한 2차원절삭의 음향방출 모델 개발의 예비연구
趙星山 弘益大學校 科學技術硏究所 1996 科學技術硏究論文集 Vol.7 No.1
A preliminary study is performed to examine the possibility of improving the existing models for root mean square of acoustic emission(AERMS) generated during orthogonal cutting. The existing AERMS models are critically reviewed to point out their limitations. Improvement of the existing model is accomplished by introducing into the existing model the energy loss that occurs during the propagation of AE generated in the shear plane to the tool/chip contact area. It is demonstrated that the new model, although incomplete, predicts the variations of AERMS with cutting conditions that are qualitatively in good agreement with the experimental observations that have not been explained with the existing models.
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Discursive Structures and Cultural Features of Nak-ron Thought in Late Joseon Korea
조성산 한국학중앙연구원 한국학중앙연구원 2011 Korea Journal Vol.51 No.1
In the eighteenth century, classic revivalism (bokgojuui 復古主義) emerged as a scholarly method for East Asian intellectuals in search of a new self-identity after the dynastic shift from Ming to Qing. Amidst this trend of the East Asian intellectual world, the Horak debate that arose among Joseon scholars was a peculiar phenomenon. Its basis was on the Noron’s political and scholarly positions founded upon Zhu Xi Confucianism (Jujahak 朱子學), which was incompatible with classic revivalism. Noron labeled classic revivalism negatively as classic imitationalism (uigojuui 擬古主義), and, in that context, the Nak-ron group of the Noron emphasized presentness and universality by arguing the equalness of past and present, the mind-hearts of sages and commoners,and natures of humans and animals. However, the Horak debate and the ideas that it represented began to decline in the nineteenth century in various ways, caused by, for example, Nak-ron’s overemphasis on presentness, its assimilation into Ho-ron, and the emergence of classic revivalism in Joseon Korea.
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DEPENDENCE OF FATIGUE LIMIT OF HIGH-TENSION BOLTS ON MEAN STRESS AND ULTIMATE TENSILE STRENGTH
조성산,장훈,이경우 한국자동차공학회 2009 International journal of automotive technology Vol.10 No.4
High tension bolts in critical joints in internal combustion engines are susceptible to fatigue failure. Computeraided bolted joint design procedures require knowledge of the dependence of bolt fatigue limit on the mean stress and ultimate tensile strength. This dependence is investigated with staircase fatigue limit tests. The test results show that when the bolt fatigue limit is estimated with the nominal stress of the bolt, it decreases with increasing tensile strength and nominal mean stress. However, there is a range of the nominal mean stress where the bolt fatigue limit is almost constant. The test results are interpreted with finite element analysis.
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