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이범주(Beom Joo Lee),한승경(Seung Kyung Hann),안성구(Sung Ku Ahn),임성빈(Sung Bin Im),이승헌(Seung Hun Lee) 대한피부과학회 1993 대한피부과학회지 Vol.31 No.2
We report a case of type III hyperlipoproteinemia which is called a broad-beta disease. A 53 year old female patient visited our clinic for the evaluation of multiple yellowish papules on extremities and eyelids. The patient showed various types of xanthoma includiiig eruptive, tuberous, tendinous xanthomas and xanthelasma palpebrarum, xanthoma striatum palmare. The blood chemistry revealed a marked elevstion of cholesterol and triglycerides and agarose gel electrophoresis showed a single peak at prebeta and beta portion without separation. On histopathologic studies, typical foam cells were showen. (Kor J Dermatol 1993; 31(2): 230-240)
혈액투석을 위한 동정맥 문합후 발생한 가성 Kaposi육종
이범주(Beom Joo Lee),김수찬(Soo Chan Kim),안성구(Sung Ku Ahn),이원수(Won Soo Lee) 대한피부과학회 1994 대한피부과학회지 Vol.32 No.2
Pseudo-Kaposis sarcoma is a self-limited process associated with vascular malformations, without the neoplastic character of real Kaposis sarcoma. In most cases, it has been associated with an underlying congenital arterial venous fistula and chronic venous insufficiency, We present a case of Pseudo-Kaposis's sarcoma developing after plagment of arteriovenous fistula for hemodialysis in a patient wiith chronic renal failure and review cases reported in articles. (Kor J Dermatol 1994; 32(2): 358-361)
표피 - 진피 분리 방법에 따른 자가 면역 수포성 질환의 항원성
이범주(Beom Joo Lee),김수찬(Soo Chan Kim),안성구(Sung Ku Ahn),이승헌(Seung Hun Lee) 대한피부과학회 1993 대한피부과학회지 Vol.31 No.1
There are many known methods of dermo-epidermal separation for the investigation of autoimmune blistering diseases. Investigators should select a proper method since many differences exist preservation of antigenicity. In order to determine the stabilization of antigenirity by different separation methods, we have separated dermo-epidermal junction by means of 1M s;ilt, 56C PBS, 20mM EDTA and dispase. Indirect immunofluarescence and immunoblotting were performed on each specimen with sera of patients with pemphigus vulgaris, pemphigus foliaceus, paraneoplastic pemphigus, bullous pemphigoid and epidermolysis bullosa acquisita. The results are as follows : 1. In indirect immunofluorescence study of pemphigus group, best, result were obtained when normal skin without dermo-epidermal separation was used. Dispase well preserved antigenicity of pemphigus after dermo-epidermal separation, but no differences were noted in antigenicity stabilization among separation mehods by immunoblotting. 2. In indirect immunofluorecence study for differentiation of bullous pemphigoid and epidermolysis bullosa acquisita, we recommend EDTA and dispase methods in addition to 1M salt induced skin separation that have been most popularly used. 3. Results of the immunoblotting of bullous pemphigoid showed that 1M salt, EDTA and heat preserved the antigenicity well but the antigenicity was lost by dispase. 4. Results of the immunoblotting of epidermolysis bullosa acquisita she wed that antigen did not exist in epidermal extract. 5. Antigen preservation according to the different methods of demo-epidermal separation was not identical between indirect immunofluorescence and immunoblotting (Kor J Dermatol 1993; 31 (1): 19-27)
김범주(Beom Joo Kim),유승진(Seungjin Yoo),이교일(Kyo Il Lee),정지열(Ji Yeol Jung),이수진(Su Jin Lee) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
This paper describes modeling and control design for the hydraulic system in Electronic Stability Program (ESP) system . A nonlinear mathematical model of the ESP hydraulic system is proposed and its accuracy is experimentally verified. The proposed mathematical model is simplified to use in a model-based controller design. The designed controller determines the duty ratio of the valve explicitly by means of making use of the simplified mathematical model in the ESP hydraulic system. The accuracy of the mathematical model and the performance of the designed controller is validated via experimental results.
이범주(Beom Joo Lee),이원수(Won Soo Lee),유민석(Min Seok Yoo),안성구(Sung Ku Ahn) 대한피부과학회 1994 대한피부과학회지 Vol.32 No.3
Background: 1. Conventional topical treatments of alopecia areata such as intralesional injection and topical application of glucocorticosteroids, and induction of conttact sensitivity using DPCP have had dieadvantages as follow 1) a time -consuming treatment perioed 2) various forms of discomfort during and after treatment 3) many side effects. 2. Though hair follicllee are easily damaged by intense cryo-application, we anticipate the regrowth of hair without damage to the tissue when applied to the scalp lightly Object : We evaluated the efficacy of treatment and side effect of cryotherapy in patients with alopecia areata and whether this method can be used for the firstiline treatment of small alopecic patches, avoiding the above disadvantages of conventional methods Method : 19 patients witt alopecia areata lesion(s) confined within one fourth of the totaI scalp area were treated by dip-stick method with liquid nitrogen once a week luring the first 4 weeks, then at a two week interval. A cotten tip was lightly applied to the alopecic, patches for one to two seconds. We surveyed side effects and regrowth of hair during a periodic follow up. Result : The results can be summurized as follows : 1. Therapeutic responses were noted in 17(89%) of 19 patients studid. 2. In all the patients who responded, vellus hair appeared within 4 weeks of treatment, and terminal hair appeared within 6 weeks of treatment. 3. There were no specific fectors showing statistical significance between therapeutic responses. 4. There were no significanf, side effects except very faint pain during cryoapplication. 5. Recurrence was observed in only patieni during a 9-12 months follow-up Conclusion : Cryotherpy of the alopecia areata can be regarded as an effective mode of treatment with many advantages. These include relatively good therapeutic results, short-term treatment, a simple and convenient method, and nearly no side effects. We recommerld cryotherapy as a first-line mode of treatment of alopecia area.ta lesions which are small in size and few in number. (Kor J Dermatol 1994; 32(3): 416-420)
김범주(Kim, Beom-Joo),김도형(Kim, Do-Hyung),이정현(Lee, Jung-Hyun),정상천(Jung, Sang-Chun),이성윤(Lee, Sung-Yoon),강승원(Kang, Seung-Won),임희천(Lim, Hee-Chun) 한국신재생에너지학회 2008 한국신재생에너지학회 학술대회논문집 Vol.2008 No.05
An ejector is a fluid machinery to be utilized for mixing fluids, maintaining vacuum, and transporting them. The Ejector is applied for a variety of industrial fields such as refrigerators and power plants. It is adopted to recycle anode off gas safely in 5kW Molten Carbonate Fuel Cell system of KEPRI(Korea Electric Power Research Institute). The ejector is placed at mixing point between the anode off gas and the cathode off gas or the fresh air. In this study, the entrainment ratio is measured according to the diametrical ratio of nozzle to throat. In addition, the performance curve of the ejector and the differential pressure in diffuser is observed.
고충증 ( Sparganosis ) 의 임상 및 병리조직학적 고찰
이범주(Beom Joo Lee),안성구(Sung Ku Ahn),김수찬(Soo Chan Kim),이승헌(Seung Hun Lee) 대한피부과학회 1992 大韓皮膚科學會誌 Vol.30 No.2
We reviewed the clinical epidermiologic features and skin biopaies of 23 patients who were diagonosed with sparganosis. Clinically, the parasites were obtained from the lesions and confirmed histopathologically. The purpose of this study was to evaluate the elinical, epidemiological, and histopathological charaeteristics of sparganosis. The results are summurized as follows : 1. There were no difference between male (48%) and female (52%) patients. 2. Age distribution, at first visit, were variable, ranging from 7 to 75, with the mean age of 40 years-old. 3. Duration of symptoms were variable, ranging from 10 years to 15 years, with a mean duration of 3 years. 4. Frequency of clinical features were as follows; movable or fixed subcutaneous nodule (16 cases), subcutaneous nodule with pain & focal warmth t.o touch (6 cases), seizure (I case). 5. Number of parasites per lesion were single lesion with single, parasite (21 cases), single lesion with two parasites (2 cases) and three parasites (3 case). 6. Frequency of location of lesion were abdominal wall (8 cases), thigh (4 cases), breast (3 cases), scrotum (3 cases), arm (3 cases), buttoek (1 cases), ciiest wall (1 case), brain (1 case). 7. The histological change of the affected tissue were characterized as follows ; 1) necrotizing and granulomatous tissue with or without parasif os in the lesions. 2) some cases were associated with marked fibrosis or formation of lymphoid follicles. 3) There were many lympho-histocytes, eosinophils, giant cel1s and some plasma cells near the lesions. (Kor J Dermatol 1992;30(2): 168-174)