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Two-band effect in superconducting parameters and their anisotropies of $MgB_2$ single crystals
강병원,김헌정,이현숙,이성익,Kang, Byeong-Won,Kim, Heon-Jung,Lee, Hyun-Sook,Lee, Sung-Ik The Korean Superconductivity Society 2007 Progress in superconductivity Vol.8 No.2
We have studied superconducting parameters of $MgB_2$ single crystals from reversible magnetization measurements with the magnetic field both parallel and perpendicular to the c-axis of the crystals. The temperature dependence of the London penetration depth, ${\lambda}_{ab}{^{-2}}(T)$, obtained from the Hao-Clem analysis on reversible magnetization, shows a clear discrepancy from single-band theories. It is also found that the anisotropies of the London penetration depth, ${\gamma}_{\lambda}$, slowly increases with temperature while the anisotropy of the upper critical field, ${\gamma}_H$, decreases with temperature. These behaviors are in sharp contrast with the behavior of superconductors with a single band. The temperature dependence of ${\lambda}_{ab}{^{-2}}$, and the opposite temperature dependences of ${\gamma}_{\lambda}\;and\;{\gamma}_H$ can be well explained with the theory of the two-band superconductivity.
이문행(Moon-Haeng Lee),이현숙(Heon-Sook Lee) 한국언론정보학회 2006 한국언론정보학보 Vol.34 No.-
이 연구에서는 개별 드라마의 시청률과 주제 유형, 드라마 형식, 제작 주체 등의 특성에 따라 해외 판매 및 국내 케이블TV, 인터넷 VOD서비스, DVD 판매 여부에 어떠한 차이가 발생하는지 분석해 보고자 한다. 분석대상은 2000년에서 2004년 상반기까지 국내에서 제작되어 방송된 드라마이며, 연구방법으로는 각각의 프로그램 특성 요인과 개별 창구 유통간의 교차분석 방법을 채택하였으며, 시청률에 따른 창구별 유통에 대해서는 일원변량 분석을 추가적으로 실시하였다. The objective of this study is to review diverse determinants of windowing in Korean drama such as rating, theme, type of drama, quantity of newsbreak and independent production. The after-market will be overseas market, domestic cable TV and emerging two revenue sources such as VOD and DVD. Korean dramas aired on free TV between 2000 and 2004 will be analysed by chi-square.
이현숙,이대열 전북대학교 의과학연구소 1985 全北醫大論文集 Vol.9 No.4
Statistical analysis for admitted patients & mortality of In-patients in pediatric ward of Chonbuk National University Hospital during past 4 years from 1981 to 1984 was performd. The results are as follows; 1) The total number of pediatric in-patients was 4705, of which 3061(61.1%) were male, 1644(34.8%) were female and male to female raio was 1.86:1. 2) The mortality rate among the total admitted patients was 2.6% and gradually decreased by year & there was no significant difference between both sex. 3) In monthly distrivution of total admitted and death cases, september was the most frequent. 4) In age distribution, infants below 1 year of age were distributed in 54 cases(44.2%) of total death. 5) Of the mortalities, 54.1% of total death were died within 48 hours after admission. 6) Infectious and parasitic disease were the most frequent cause of death(43.4%) 7) Major leading causes of death were sepsis, pneumonia, Reye syndrome, encephalitis, tuberculosis & meningitis in order of frequency. 8) Causes of death accrding to age were as follows; a) In the neonatal period, sepsis was the most frequent. b) In the age of 1 month to 1 year, sepsis and Reye syndrom were the most frequent. c) In the age of 1 year to 2 years, pneumonia was the most frequent. d) In the age of 1 years to 6 years, tuberculous meningitis was the most frequent. e) In the age 6years to 12 years, encephalitis was the most frequent. f) In the age of 12 years to 15 years, aplastic anemia, rheumatic carditis and Reye syndrome were the most frequent.
박응규,김종덕,최인수,이현숙,김정수 전북대학교 의과학연구소 1985 全北醫大論文集 Vol.9 No.3
Takayasu's arteritis is nonspecific inflammatory process invoving the aorta and its major branches, and it occurs primarily in young female. This disease most frequenly has been reported in orient. The clinical manifestation is mainly due to obstruction of the involved vessels originating from aortic arch and other aortic segments. The cause is unknown, but infection, such as tuberculosis was reported to be related with Takayasu's arteritis, otherwise autoimmune theory was reported also. This is a report of a 15 year old male who developed the typical and pathophysiological manifestation of Takayasu's disease and we also made brief review of literature.