http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
- 검색키워드
- 저자 : 李聖一 (검색결과 706 건)
- 무료
- 기관 내 무료
- 유료
-
이성일,설수길,서치균 대한피부과학회 1971 大韓皮膚科學會誌 Vol.9 No.3
6 cases of nevus sebaceus of Jadassohn were reported and its literatures were reviewed. It is thought to be rather rare disease in this country. Two of the cases were seen within the age of 2 years and showed the clinical pictures of early stage. The remaining 4 cases were the clinical pictures of late stage showing verrucous lesions. All cases developed the lesions in the scaIp except case 6 which appeared on anterior neck. One of the cases was associated with syringocystadenoma papilliferum but none of the cases show any association of basal cell carcinoma.
-
이성일,권영천,Lee, Sung-Ill,Kwon, Young-Cheon 한국전기전자재료학회 2011 전기전자재료학회논문지 Vol.24 No.11
In this thesis, the silicone filler with a sample size of 0~75 phr and void size of 2~4.5 mm is prepared in order to diagnose the defect of void which exists in widely used insulation material, silicone rubber. In this silicone rubber sample, electrodes are connected and whilst the voltage changes, applied voltage 7 kV~9 kV is increased constantly over time and discharge quantity, discharge frequency and applied voltage (T-QNV) were measured. The discharge quantity of the applied voltage (VQ) is measured to estimate inception voltage and extinction voltage. In addition, under the condition of maintaining constant applied voltage, discharge quantity and discharge frequency (QN) are measured, and its characteristics are analyzed.
-
경도 변화에 따른 실리콘 고무의 유전 특성에 관한 연구
이성일,Lee, Sung-Ill 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.11
This research measured the dielectric properties of silicone rubber with various hardness in 100 Hz~3 MHz, $30{\sim}170^{\circ}C$ conditions. When the hardness increases from 65 degree to 75 degree, the dielectric loss increased within frequency range of 100 kHz~3 MHz and was a little change in dielectric loss within temperature range of $90^{\circ}C{\sim}170^{\circ}C$. Thermogravimetric Analysis (TGA) showed the weight change rate increased a little while heated until $800^{\circ}C$. Scanning Electron Microscope (SEM) measurement showed that Aluminium Trihydroxide($AlOH_3$) which acts as a reinforcement agent reduced the size of the particles as the hardness increased.
-
이성일,여동훈,신효순,윤영수,Lee, Sung-Il,Yeo, Dong-Hun,Shin, Hyo-Soon,Yoon, Young-Soo 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.7
In this study, we have coated the inner surface of YSZ channel using LSM powder ink through depressurization process for making the cathode of a stacked planar-type SOFC module. To coat the surface of YSZ channel uniformly, we tried to find the optimum manufacturing condition for LSM ink. We used four different dispersants (BYK series) and two different solvents (ethanol and DMF) to make the LSM ink. It was revealed that the ink made with the ethanol solvent and the BYK-111 dispersant has the lowest viscosity, relatively low contact angle and most excellent dispersibility. After depressurizing a chamber filled with LSM ink and sintered YSZ channel, we have found that the YSZ channel was uniformly coated with LSM cathode. The LSM ink with 25 vol% BYK-111 showed the most uniform coating.
-
-
이성일,김귀열 충주대학교 산업대학원 2001 大學院論文輯 Vol.2 No.-
The research and development of the solid oxide fuel cell have been promoted rapidly and extensively in recent years, because of their high efficiency and future potential. Therefore this paper describes the manufacturing method and characteristics of anode electrode for SOFC, by the way, Ni-YSZ materials are used as an ode of SOFC widely. So in this experiments, we investigated the optimum content of Ni, by testing expansion coefficient, impedance characteristics, overvolt age. As a result, the performance of Ni-YSZ anode(40vol%) was better excellent than the others.
-
Smith, L. C., & Mare, N. N. (2004). Insights for today. Boston, Massachusetts: Thomson Henle.
이성일 한국중등영어교육학회 2009 중등영어교육 Vol.2 No.1
Lorraine C. Smith and Nancy Nici Mare’s Insights for Today provides high-beginning ESL/EFL students with essential practice for improving their reading skills. To do this, the book presents the well-organized framework that includes sophisticated pre-reading, during-reading, and post-reading activities on the various topics. The diverse topics of the book might be practical information for students in the real world. It is another excellent aspect of the book that it grants internet activities designed to encourage students to learn more about the topic they have read out of class.
-
흡습에 의한 에폭시 수지의 전기적 열화 특성에 관한 연구
이성일,Lee, Sung Ill 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.9
In this study, the moisture content, charge discharge current, electrostatic capacity and dielectric loss tangent are measured for the specimen of bisphenol type epoxy resin which is mixed with squared amorphous silica filler and dipped in hot water of $50^{\circ}C$ for 169 days. The results of this study are listed below. The longer of deposition day, the charge and discharge current was increased. It is considered that the reason is because there was water attack through the squared silica surface. The longer of deposition day, the absorption rate of all specimens was increased. It found that the absorption rate reached saturated state after 100 days. The higher frequency and the longer of deposition day, the $tan{\delta}$ was decreased. Also, It found that the $tan{\delta}$ and electrostatic capacity of the specimen which is mixed with squared filler are greater.
-
이성일,김귀열 충주대 산업과학기술연구소 1996 産業科學論文集 Vol.4 No.-
In this paper, the cathode materials of solid oxide fuel cell were fabricated, and the analysis of TG/DTA, XRD, thermal expansion were investigated. As a result, thermal expansion coefficient of LSM was not quite different from that of electrolyte. And a performance of LSM(x=0.4) was better excellent than the others.
-
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
