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온도저하에 따른 SF<sub>6</sub>의 상전이 및 절연특성
김종환,최은혁,박광서,윤대희,김이국,이광식,Kim, Jong-Whan,Choi, Eun-Hyuck,Park, Kwang-Seo,Yoon, Dae-Hee,Kim, Lee-Kook,Lee, Kwang-Sik 한국조명전기설비학회 2005 조명·전기설비학회논문지 Vol.19 No.8
고본 연구는 모의 GIS내 절연특성을 $SF_6$ Gas의 온도의 변화($+30{\sim}-40[^{\circ}C]$)에 따른 절연특성을 구명하였다. 절연 특성은 기체상태의 Paschen's law 적용구간, 기체와 액체 공존상태의 절연파괴전압이 대세적으로 높고, 편차가 심한 구간과 챔버 내부가 저밀도 $SF_6$와 잔류공기의 혼합체로 이루어지는 극히 낮은 압력상태로 되어 절여파괴 전압이 크게 낮아지는 구간으로 구분되었다. 또한 본 실험에서 액체 $SF_6$가 기체 $SF_6$보다 절연특성이 우수함을 확인하였다. 상전이와 절연특성을 구명함으로서 각종 고온초전도 및 극저온 응용 설비의 절연설계의 기초 자료로 제공하고자 한다. In this paper, insulations characteristics by temperature changes($+30{\sim}-40[^{\circ}C]$) of $SF_6$ gas in the experimental chamber were studied. From this result, The breakdown characteristics classify the vapor stage of $SF_6$ according the Paschen's law, the gas & liquid coexisted stage of voltage value increases & much deviation and the VB low stage as the interior of chamber gets filled with mixture of $SF_6$ that are not liquefacted and remaining air which couldn't be ventilated. In addition the ability of insulation of liquid $SF_6$ was higher than that of the highly pressurized $SF_6$ gas. In this research, we want to provide the base data on designing insulation of high-temperature superconductor and the cryogenic equipments by investigating the insulation characteristics of $SF_6$.
새로운 백금 착체(II) 화합물의 흰쥐 혈장에서 대사체 확인
김종환,조요나,노영수,서성훈,정지창,장성구,이규홍,이주한,이경태,Kim, Jong-Whan,Jo, Yo-Na,Rho, Young-Soo,Seo, Seong-Hoon,Jung, Jee-Chang,Chang, Sung-Goo,Lee, Kyoe-Heung,Lee, Joo-Han,Lee, Kyung-Tae 한국약제학회 1998 Journal of Pharmaceutical Investigation Vol.28 No.3
KHPC-002 $[(trans-l-diaminocyclohexane-bis-l,2(diphenylphosphinoethane)platinum)\;{\cdot}2NO_3]$ and $KHPC-006[(cis-diaminocyclohexane-bis-1,2(diphenylphosphinoethane)platinum)\;{\cdot}2NO_3]$ were synthesized as candidates for third platinum antitumor agent. Before their pharmacokinetic study, we optimized the analytical condition with HPLC and identified the major metabolites in the rat plasma. HPLC analysis by $C_{18}$ reverse-phase column showed that standard peak of both compounds appeared rapidly at around 1 minutes, whereas metabolites of KHPC-002 and KHPC-006 which were extracted from plasma after single I.V. administration in rats or incubation for 24 hr at $37^{\circ}C$ showed retention time of $10{\sim}11$ minutes. These metabolites were identified as the major compound by Matrix Associated Laser Deposition/Ionization (MALDI), which only lose the 2 molecules of $NO_3$. Based on these results, we suggest that the major metabolites of KHPC-002 and KHPC-006 were [trans-l-diamino-cyclohexane-bis-l,2(diphenylphosphinoethane)platinum] and [cis-diaminocyclohexane-bis-l.2(diphenylphosphinoethane)platinum], respectively.
김종환,Kim, Jong-Whan 한국디지털건축·인테리어학회 2004 한국디지털건축인테리어학회 논문집 Vol.4 No.2
This study is to furnish basic data for establishing the improvement counterplan of Housing environment and to solve the problem of Housing supply resulting from the continuous increase of population and to examine the historical flowing, the present condition and problems of Housing in Uijeongbu city. Including of the multi-house to the number of Housing, the supply ratio of Housing is 95% in quantity of the Housing in Uijeongbu city in 2004. Now, it is important time in the respect of quality as well as the quantity in supply matter of Housing. In fact, the main viewpoint in housing supply policy has been brought focus into the economic profits more than public interests. As a result of that, the residence environment has been worse. From now on, a Local autonomous entity including the construction authorities and Uijeongbu city authorities must focus on the public interests in solving problems of Housing.
채매환자의 행태특성 분석을 통한 건축계획에 관한 연구 -시.도립 치매 전문병원 사례를 중심으로-
김종환,김명근,Kim, Jong-Whan,Kim, Myoung-Keun 한국디지털건축·인테리어학회 2006 한국디지털건축인테리어학회 논문집 Vol.6 No.2
The purpose of this study is to analyze the problems in assumption of the distinguished behaviors of hospitalized dementia patients- which can be easily emerged and recognized in senile dementia patients and their distinctive behavior characters in different physical environment per person. Furthermore, it is to suggest a fundamental data to improve physical environment of the different facilities and the design guidelines for reconstruction in terms of the new and therapeutic function of the dementia specialized department. For planning on the dementia specialized hospital, considerablely, security and safety, comfortableness, personal identification of the facility, emotional stability and the proper stimulation for the patients are emphasized according to the research on the frequent and major issues of the patients from their own dwelling place.
새로운 백금 착체(2) 화합물의 흰쥐 혈장에서 대사체 확인
김종환(Jong Whan Kim),조요나(Yo Na Jo),노영수(Young Soo Rho),서성훈(Seong Hoon Seo),정지창(Jee Chang Jung),장성구(Sung Goo Chang),이규홍(Kyoe Heung Lee),이주한(Joo Han Lee),이경태(Kyung Tae Lee) 한국약제학회 1998 Journal of Pharmaceutical Investigation Vol.28 No.3
N/A KHPC-002[(trans-l-diaminocyclohexane-bis-1,2(diphenylphosphinoethane)platinum)·2NO₃] and KHPC-006[(cis-diaminocyclohexane-bis-1,2(diphenylphosphinoethane)platinum)·2NO₃] were synthesized as candidates for third platinum antitumor agent. Before their pharmacokinetic study, we optimized the analytical condition with HPLC and identified the major metabolites in the rat plasma. HPLC analysis by C_(18) reverse-phase column showed that standard peak of both compounds appeared rapidly at around 1 minutes, whereas metabolites of KHPC-002 and KHPC-006 which were extracted from plasma after single I.V. administration in rats or incubation for 24 hr at 37℃ showed retention time of 10∼11 minutes. These metabolites were identified as the major compound by Matrix Associated Laser Deposition/Ionization (MALDI), which only lose the 2 molecules of NO₃. Based on these results, we suggest that the major metabolites of KHPC-002 and KHPC-006 were [trans-l-diamino-cyclohexane-bis-1, 2(diphenylphosphinoethane)platinum] and [cis-diaminocyclohexane-bis-1,2(diphenylphosphinoethane)platinum], respectively.