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김동익,김덕경,허세호,이병붕,김용신,김은숙,문지영,도영수,신성욱,김동수,김만태,진재욱,김용신 대한혈관외과학회 2002 Vascular Specialist International Vol.18 No.1
As medical technology progresses rapidly, there is a rise in the average age along with the Korean dietary lifestyle becoming more westernized, which leads to an increase in the number of vascular disease patients in Korea. Thus, we need to manage the medical information of a disease systematically in order to diagnose and treat constructively. However, since there has been no standardized method of man agement to date, a great deal of information could not be properly utilized nor studied. Therefore, the departments of Cardiology, Radiology and Neurology of Samsung Seoul Hospital recently got together to develop an information management system called the Vascular Data System. This program was developed to be run on win98 O/S, upper Pentium Ⅲ, and upper 128 MB Memory, and its source code is Dephi 4.0. It was configured for the user to set the configurations as well as do a variety of search and analysis. If this program were to be updated continuously, it may be used extensively as well as in various parts of clinical research activities.
김영민,오동렬,이원재,김형국,황두영,이환,최경호,정시경,김세경,김영옥 大韓應急醫學會 1998 대한응급의학회지 Vol.9 No.4
Rhabdomyolysis is a biochemical and clinical syndrome caused by lysis of skeletal muscle cell and release of muscle cell contents into the circulation. In addition to traumatic cause, various nontraumatic causes have been reported. Rhabdomyolysis has frequently been associated with seamy aspects of life and society: alcoholic abuse, drug addiction, sadistic drill exercise, war events and attempted suicide. The abuse of alcohol causes many hazards in many organs. One of these is acute alcoholic myopathy that may present as a fulminent syndrome of muscle pain and tenderness associated with rhabdomyolysis and acute renal failure. Because the prognosis of adequately treated rhabdomyolysis is excellent, early recognition and prompt management are essential in emergency situation. We experienced two typical cases of alcohol-induced rhabdomyolysis with acute renal failure and report these cases with literature review.
승온시 Si₂H?가스 주입을 이용한 고상에피택시에 의해 제조된 Si에피택시막에 관한 연구
金東玄,申東勳,金世埈,金亨駿 弘益大學校 科學技術硏究所 1997 科學技術硏究論文集 Vol.8 No.-
In this study, a novel technique to realize a selectively grown Si epitaxy layer onto source/drain regions has been developed. This technique consists of deposition of amorphous Si with oxide-free Si surface, selective solid phase epitaxial(SPE) growth on Si windows. The amorphous Si layer serves as the channeling prevention layer during the ion implantation. Usually, amorphously deposited Si films by CVD are crystallized to poly-Si due to a formation of SiO₂layer at amorphous Si/Si substrate interface. Formation of SiO₂layer on si surface can be effectively prevented by flowing Si₂H?? gas during the heating-up procedure fro amorphous Si depositions. In this way, amorphously deposited Si layer onto (100) Si substrates was grown epitaxially during the post-deposition heat treatments. Employing Si₂H?? flowing and solid phase epitaxial growth, high-quality epitaxial Si layer was obtained at low temperatures below 600℃ without conventional high temperature cleaning procedures.
Park, Se Jin,Jeon, Hyo Sang,Cho, Jin Woo,Hwang, Yun Jeong,Park, Kyung Su,Shim, Hyeong Seop,Song, Jae Kyu,Cho, Yunae,Kim, Dong-Wook,Kim, Jihyun,Min, Byoung Koun American Chemical Society 2015 ACS APPLIED MATERIALS & INTERFACES Vol.7 No.49
<P>Significant enhancement of solution-processed CuInxGa1-x(Se,S)(2) (CIGSSe) thin-film solar cell performance was achieved by inducing a band gap gradient in the film thickness, which was triggered by the chalcogenization process. Specifically, after the preparation of an amorphous mixed oxide film of Cu, In, and Ga by a simple paste coating method chalcogenization under Se vapor, along with the flow of dilute H2S gas, resulted in the formation of CIGSSe films with graded composition distribution: S-rich top, In- and Se-rich middle, and Ga- and S-rich bottom. This uneven compositional distribution was confirmed to lead to a band gap gradient in the film, which may also be responsible for enhancement in the open circuit voltage and reduction in photocurrent loss, thus increasing the overall efficiency. The highest power conversion efficiency of 11.7% was achieved with J(sc) of 28.3 mA/cm(2), V-oc of 601 mV, and FF of 68.6%.</P>
두경부 악성 림프종의 면역조직화학적 유형분석 및 Epstein-Barr virus의 검출
김성현,전세영,임동명 조선대학교 부설 의학연구소 1999 The Medical Journal of Chosun University Vol.24 No.1
Background and Objectives : The Epstein-Barr virus(EBV) is a human herpes virus which causes infectious mononucleosis and is associated with such human cancers as Burkitt's lymphoma and nasopharyngeal carcinoma. However, the role of EBV as a causative factor in other head and neck tumors is not fully elucidated. Malignant lymphoma is a tumor of the immune system which is commonly known as a non-epithelioid tumor of the head and neck region. Recent studies have suggested a probable etiologic association between EBV and lymphomas. This study was performed to investigate the strength of the association of EBV with malignant lymphoma and to carry out an immunohistochemical classification. Materials and Methods : Twenty one cases of non-Hodgkin's lymphoma tissues in the head and neck were used. Immunohistochemical staining was carried out with EBV protein, CD20 and CD3. Results : Among the 21 cases of malignant lymphoma, 9(43%) of the cases were of B cell lineage, 10(48%) of the cases of T cell lineage and 2(10%) of the cases were of an unclassifiable type. The commonest histopathologic type were diffuse large cell types and diffuse mixed types in 8(38%) of the cases. All 6 cases(100%) of nasal/paranasal sinus lymphoma were T-cell lymphoma. The detection rate of EBV in malignant lymphoma tissue was 52%. EBV was detected in 5 cases(56%) of B-cell lineage and 6 cases(60%) of T-cell lineage. Among 6 cases of nasal/paranasal sinus T-cell lymphoma, 4(67%) were positive for anti-human EBV protein. In the positive cases, a large number of the neoplastic cells and infiltrated lymphocytes showed strong nuclear signals. Conclusion : These results suggest that most nasal/paranasal sinus lymphomas are T-cell type neoplasms and EBV probably plays an etiologic role in the pathogenesis of group nasal/paranasal sinus T-cell lymphomas.
Terfenadine과 Ketoconazole 복용 후 발생된 Torsades de pointes 심실 빈맥증의 치험 1례
김세경,이기중,유승진,박일영,박승현,임근우,이원재,강동헌 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1
Torsades de pointes is a form of polymorphic ventricular tachycardia that is associated with prolongation of the QT interval, characterized by QRS complexes of progressively changing amplitude and contour that seem to revolve around the isoelectric line. The most common cause of Torsades de pointes induced by antiarrhythmic agents, occupying in certain drugs or toxin, electrolyte disturbance, congenital QT prolongation syndrome. Cardiotoxicity terfenadine, in overdose a widely used, nonsedating antihistamine, has been reported. Case after administration of terfenadine and ketoconazole causing syncope and torsades de pointes have been reported in recommended dose. We report a case of QT prolongation with torsades de pointes after therapeutic administration of terfenadine, a long acting histamine H1 receptor antagonist, together with ketoconazole, an antifungal preparation. The patient is a 43-year-old female, who experienced palpitation, dizziness and syncopal episoders after coadministration of terfenadine and ketoconazole, for a fungal infection of the skin. The ECG showing typical episodes of torsades de pointes with QT prolongation. Magnesium sulfate was given, torsades de pointes did not recur. The patient was discharged with improved condition.
김동규,이세래 三陟大學校 2001 論文集 Vol.34 No.3
A strategic alliance is a cooperative arrangement between two or more independent firms that engage in business activities for mutual economic gain. Firm with an alliance strategy take advantage of synergy in competitive environment to reduce operating and transaction costs and to increase competitive advantages. Influenced by WTO initiation, the domestic construction market has opened private business at 1996 and government business at 1997 respectively. So, domestic construction companies have to compete with advanced foreign-construction companies. As one of the measures to cope with the competition, domestic construction companies should cooperate strategically with advanced foreign companies to accumulate advanced and maintenance technology. In this paper, we suggest ways of improvement to achieve successful strategic alliance of domestic construction industry. The concrete items I would like to study in this paper are as follow: 1.literature review of strategic alliance 2.situation analysis in domestic construction industry. 3.the improvement method of construction industry.