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RISS 인기검색어
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- 저자 : 이상헌(Lee Sang Heon) (검색결과 644 건)
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이상헌,Lee, Sang-Heon 대한건축사협회 2000 建築士 Vol.2000 No.4
본지에서는 지난 2000년 1월호에 '21세기 한국건축의 비전'이란 주제로 기획특집을 마련, 교육관련 부문을 이상헌(건국대 건축대학원)교수에게 집필 의뢰하여 '건축교육개혁방안 ; 학부 5년제 문제 있다'는 내용의 원고를 게재하였고, 이후 이교수의 글과 관련하여 김광현(서울대 건축학과)교수는 학부 5년제의 취지를 이해하지 못한데서 비롯됐다며, 이교수의 글에 대한 반론을 제기하여 '학부 5년제 문제있다는 주장의 문제'의 글을 기고하여 본지 2월호에 게재한 바 있다. 이에 대해 이상헌교수는 '학부 5년제 문제있다는 주장의 문제'에 대해 반론을 제기한 김광현교수의 글은 필자의 글에 대한 의도나 생각을 근본적으로 오해한 데서 비롯된 것으로서 이에 대한 보다 정확한 필자의 생각을 피력하기 위해 '대학원 중심의 4+2년제를 주장하는 이유'에 대한 글을 3월호에 게재코자 기고하였다. 그러나 지면관계상 3월호에 게재하지 못하고, 이번호의 '기고'지면을 통해 게재코자 하며, 아울러 지난 1,2월호 본지를 통해 게재된 건축교육 관련내용에 대한 필자의 글과 본란의 글은 우리 협회의 의견과 일치하지 않을 수도 있음을 밝힌다.
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소합향원(蘇合香元)이 혈액내 Free Cholesterol에 의한 혈관내피세포 손상에 미치는 영향
이상헌,이소연,윤현덕,신오철,박창국,박치상,Lee, Sang-Heon,Lee, So-Yeon,Yoon, Hyeon-Deok,Shin, Oh-Chul,Park, Chang-Gook,Park, Chi-Sang 대한한방내과학회 2005 大韓韓方內科學會誌 Vol.26 No.3
FC(free choresterol) plays an important role in normal and pathophysiological cells including that of messenger molecule or dilator of blood vessels in such illnesses as artheriosclerosis, hypertension and myocardial infarction. Smooth muscle and endothelial cell functions in the arteria wall are unified by complex intercellular signalling processes. In arteria comprised of one layer of smooth muscle cells surrounding the endothelium, the close apposition of the two cell types enables a signal derived from one cell to rapidly diffuse to neighboring cells. Experimentation was conducted to investigate the potential contribution of Sohaphyangwon(SHHW) on levels of FC generated by goaded microphages, and mechanisms of protection against ACAT inhibitor. It was found that J774 macrophages, which normally do not express FC were expressed by oxLDL and ACAT inhibitor. SHHW protected cells were found to be resistant to oxLDL and delayed death following the FC. Inhibition of FC formation abolished the protective effect against ACAT inhibitor exposure. Cadiovascular diseases include abnormalities of blood vessels dysfunction of the renin-angiotension system. What relation herbal medicine may have with vessel endothelium necrosis was here studied. In Oriental Medicine, SHHW water extract used for diseases in relation to cardiovascular systems. The resistence to cardiovascular disease of ACAT inhibitor induced J774 macrophage cells were studied through analysis of cell morphological patterns and immunochemistry of SHHW. The results of this study suggest that SHHW has protective effects on the cardiovascular system, and that it is effective in both prevention and treatment of diseases of the cardiovascular system, particularity against necrosis of blood.
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이상헌,정인철,Lee, Sang-Heon,Jeong, In-Cheol 한국시뮬레이션학회 2006 한국시뮬레이션학회 논문지 Vol.15 No.4
위치 선정이나 설비배치문제를 기존의 정성적 접근방법에서 벗어나 수학적 방법을 통해 해결하려는 시도가 여러 분야에서 이루어지고 있다. 지역담당모형은 이러한 연구 분야중 하나로 주어진 문제를 수학적으로 현실과 유사하게 구현시킬 수 있고 모형에 대한 해법절차도 다양하기 때문에 여러 형태의 배치문제들에도 폭넓게 적용되어 왔으며 최근 들어서는 군사설비분야에서도 그 활용도가 높아지고 있다. 본 연구는 미사일 방어를 위하여 한국해군 KDX 함정의 최적배치에 대한 시뮬레이션 모델을 구축하였다. 시뮬레이션 모델은 부분지역담당모형을 바탕으로 공격자와 방어자의 측면을 단계적으로 평가하는 방법으로 구현되어 있으며, 구축된 모형에 대하여 가능한 시나리오를 설정하고 실험을 통하여 결과를 분석하였다. 구현된 모형실험은 공격자의 공격계획과 공격계획에 따른 최적의 KDX 배치선정과 방어미사일 할당에 대한 의사결정방안을 제시하고 있다. 본 연구의 최적배치모형은 한국적 미사일방어 체계구축을 위하여 도입될 최신무기체계의 위치선정에 대한 최적의 대안을 제시하고 효율적인 부대배치를 위한 참고자료로 활용할 수 있을 것이다. In most positioning and allocation practices, many mathematical models are proposed in various fields. The set covering (SC) problem has many practical applications of modeling not only real world problem but also in military. As our air defense weapon systems are getting older and declining the performance, new plans far acquisition of high-tech air defense weapon system are being conducted. In this paper we established simulation model for optimal allocation of KDX which carries new missile defense weapon system by using partial set covering considering both attacker and defender side. By implementating simulation model, we assess the available scenarios and show the optimal pre-positioning of KDX and interceptor's allocation. Furthermore, we provide a variety of experiments and extensive scale sized situations for Korea Indigenous Missile Defense (KIMD) and support decision-making for efficient positioning of unit.
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이상헌,Lee Sang-Heon 한국전기전자재료학회 2006 전기전자재료학회논문지 Vol.19 No.8
BiSrCaCuO(2223) superconductor was fabricated by the thermal pyrolysis method. The superconducting precursor produced by the dehydration of the gel at $120^{\circ}C$ for 12 h is not in the amorphous state as expected but in a crystalline state. In this paper, the establishment of fabrication condition was examined so as to improve the related properties to the practical use of BiSrCaCuO superconductor, and we reported the production of the BiSrCaCuO by the pyrolysis method.
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이상헌,강정욱,원우연,Lee, Sang-Heon,Kang, Jung-Uk,Won, Woo-Yeon 한국전기전자재료학회 2015 전기전자재료학회논문지 Vol.28 No.6
The typical winter heating unit heating mat. The product is to be found in the development of new water heating mat today. The product that circulates the water through the hose inside the mat with your existing heating mat electric heated mat is different from boiling water. However, no clear standards for noise and safety, consumer choice is giving confusing information about the product is low. We were to develop a high heat retention and stability than conventional sleeping mats to produce creative than traditional hot mats, heated mats general comparison with experimental results is a more efficient heat retention mat is produced.
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이상헌,Lee, Sang-Heon 한국전기전자재료학회 2017 전기전자재료학회논문지 Vol.30 No.2
In this research, the development of fabrication technique of bulk YBaCuO superconductors for application was studied. In fluence of $BaZrO_3$ addition on magnetization characteristics of thermal pyrolysis textured YBaCuO superconductor was investigated. Fine $BaZrO_3$ particle were dispersed within the textured YBaCuO matrix by means of the thermal pyrolysis processing. Magnetic levitation force for YBaCuO superconductors were obtained using Nd-B-Fe permanent magnet, at 77 K and at the magnetic field from 0 to 5.3 K gauss. In the unadded superconductor and 5 wt% $BaZrO_3$ addition, anomalous magnetization behavior, which is characterized by the intermediate magnetic field, was observed at 77 K. Critical current density was about few hundreds $A/cm^2$ and the magnetic characteristics increased slightly by addition of $BaZrO_3$ powder. Maximum magnetic force was obtained in the YBaCuO superconducting bulk with 3 wt.% $BaZrO_3$ addition.
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이상헌,박건태,손영국,Lee, Sang-Heon,Park, Geon-Tae,Son, Yeong-Guk 한국재료학회 2002 한국재료학회지 Vol.12 No.4
Tin oxide thin films doped with silicon as anodes for lithium secondary battery were fabricated by R.F. magnetron sputtering technique. The electrochemical results showed that the irreversible capacity was reduced during the first discharge/charge cycle, because the audition of silicon decreased the oxidic state of Tin. Capacity was increased with the increase of substrate temperature, however decreased with the increase of RTA temperatures. The reversible capacity of thin films fabricated under the substrate temperature of $300^{\circ}C$ and the Ar:$O_2$ratio of 7:3 was 700mA/g.
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