담낭 방선균증 1예

김형수,정진원,김양수,우준희,송현순,류지소,김명환,김남중 대한감염학회 2003 감염과 화학요법 Vol.35 No.5

저자들은 우상복부 통증과 소화불량을 주소로 내원한 83세 여자 환자에서 국내 최초로 담낭 방선균증을 진단하고 치료 관찰 중으로 이에 문헌고찰과 함께 보고하는 바이다. Actinomycosis is a chronic suppurative and granulomatous disease, characterized by abscess formation, tissue fibrosis, and draining sinuses. Actinomycosis of the gallbladder is very rare and has not yet been reported in Korea. We report a case of actinomycosis of the gallbladder in an 80-year-old women with history of cholelithiasis for 3 years, preoperatively misidentified as gallbladder cancer. Histologic section of the gallbladder showed Gram-positive branching bacilli compatible with actinomyces. After cholecystectomy, the patient received intravenous ampicillin for 4 days, followed by amoxicillin for 4 months thereafter.

구내 골신장술 후 식립된 전치부 임플란트보철 치험보고

김한석,김명래,이성근,강상원,김기환,김형섭 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.1

Objective : This is to report the effectiveness of intraoral distraction osteogenesis for alveolar augmentation in the extremely atrophied alveolar defects and to review the clinical results of the 2 cases. Subjects and Methods : Anterior segmental osteotomy was performed and the trans-oral alveolar distractors(Martin, Germany) were applied in 2 patients with the severe acquired anterior maxillary and mandibular defect. After latent period for 1 week, the osteomized alveolar segments were distracted by 1 ㎜ a day (0.5 ㎜/l turn) for 8 days in case Ⅰ and 0.6 ㎜ a day(0.3 ㎜/l turn) for 10 days in case Ⅱ. The consolidation period was about 8 weeks in each case. Thereafter, 6 titanium threaded implants(Branemark, Restore) were simultaneously installed with removal of distractor. The implants were tested clinically and radiographically. Results : Amounts of acquired alveolar bone were 8 ㎜ in case Ⅰ and 6 ㎜ in case Ⅱ respectively, with the increased width of the ridge crests and soft tissue expansion. Dental implants installated on the augmented alveolar ridges in 8 weeks after distrction were confirmed as in good osseointegration and in good function without any complications. Conclusion : Intraoral distraction osteogenesis can be a good option for alveolar ridge augmentation of the severely atrophied ridges and soft-tissue defects. However, for the better vector control of distracting segments and for anterior esthetics, customized distraction devices could be considered later.

環境紛爭調整制度의 改善方案에 관한 硏究

金春煥,具亨瑾 朝鮮大學校 社會科學硏究所 2003 社會科學硏究 Vol.24 No.2

진공증착중합법에 의해 제조된 PMDA / 4,4'-DDE 폴리이미드의 내열 특성

김형권,이은학,우호환,김종석,이덕출 (사단법인)韓國火災 ·消防學會 1996 한국화재소방학회논문지 Vol.10 No.3

The Polyimide thin films based on PMDA and 4,4'-DDE were fabricated by VDPM, and their heat resistance characteristics were invastigated by TGA(Thermogaravimetry Analyzer). It was found that deposition rate decreased with increasing substrate temperature and the thin films were not fabricated over the substrate temperature of 70℃. T_TG of 5% weight loss temperature is 565℃, 397℃ and 210℃ at the substrate temperature of 20℃, 40℃ and 70℃, respectively. It is realized that the endurace temperature for 20,000 hour of thin films fabricated at 20℃ and 40℃ is 230℃ and 200℃, respectively.

專門大學 職業敎育 내실화와 産學協同 활성화 방안 : 위생사를 중심으로

김남천,이상건,우세홍,김을환,이형춘,이인길 서울保健大學 1987 論文集 Vol.7 No.1

日本의 住民訴訟에 관한 硏究

金春煥,具亨瑾 朝鮮大學校 社會科學硏究所 2003 社會科學硏究 Vol.24 No.1

간세포암 파열의 영상소견 : 증례 보고 A Case Report

김일영,김현철,김형환,신형철 순천향의학연구소 2004 Journal of Soonchunhyang Medical Science Vol.10 No.2

Spontaneous rupture of hepatocellular carcinoma (HCC) is one of the most serious complication of HCC. Immediate diagnosis and proper management are important for prolongation of survival rate of the HCC patients. We experience spontaneous rupture of HCC with hemodynamic study of CT and performed hepatic angiography with embolization. Authors report imaging findings of spontaneous rupture of HCC.

汚加皮 抽出液이 마우스의 抗腫瘍 免疫反應에 미치는 影響

成載煥,權文鉉,金炯均 圓光大學校 韓醫學硏究所 1995 원광한의학 Vol.5 No.1

Ogapi(Acanthopanax senticosus) is being used for a tonic in the oriental medicine from ancient times, Even though it being used frequently for a tonic in the clinical medicine, basic study to make sure the mechanism of its action is the rare. Therefore, in this study, the author tried to know the effects of ogapi on the innate and specific immune systems in association with antitumor activity. The results obtained in this study are as follows: 1) Ogapi increased the phagocytic activities of murine peritoneal macrophages in vivo and in vitro. 2) Ogapi enhanced the production of such reactive oxygen intermediates as superoxide and hydrogen peroxide from the macrophages in vivo and in vitro. 3) Ogapi enhanced such humoral immune responses as hemagglutinin and hemolysin formations. 4) Administration of ogapi increased the number of rosette forming cells in the spleen. 5) Ogapi decreased the contact hypersensitivity against dinitrofluorobenzene. 6) Ogapi showed cytotoxic activity against human leukemia cell line (K562) 7) Ogapi increased the ratio of helper T cell versus suppressor T cell by increasing CD4^+ T cells and decreasing CD8^+ T cells. The above results show that ogapi increase the host antimicrobic and antitumor activities by the action on individual innate and specific immune systems in vitro. So this is considered as experimental results back up powerfully that ogapi can be used for a tonic in such a case when administered to a person lacking vital energy.

자기동조 PID제어기에 의한 전력계통 안정화에 관한 연구

정형환,김상효,이광우 東亞大學校 大學院 1994 大學院論文集 Vol.19 No.-

A new technique for the exitation control of synchronous generator is presented in this paper. The proposed technique employs a self-tuning proportional-integral-derivative(PID) power system stabilizer in order to improve the dynamic performance of a synchronous machine. The self-tuning-regulator(STR) PID using recursive-least-squares(RLS) estimated K? K?, K? Gains. A application voltage control of power system terminal voltage deviation, angular velocity deviation, and rotor angle deviation considered dynamic. Simulation results establishment that proposed STR PID control technique superiorited conventional PSS(power system stabilizer) control.

한천-Acrylamide 미생물 고정화법을 이용한 Polyester 감량폐수의 처리

조무환,김형섭,김정목 嶺南大學校 環境問題硏究所 1995 環境硏究 Vol.15 No.1

폴리에스테르 감량폐수의 주요성분인 EG(ethylene glycol)와 TPA(terephthalic acid)를 분해하기 위하여 분해균주인 Pseudomonas EAW 및 TS2를 한천-acrylamide에 고정화시킨 공정을 개발하였다. 최적 배양조건은 pH 7.5, 온도 35 'C로 나타났다. 체류시간 36시간, 유입 ????? 및 ?????이 각각 5,235 mg/ℓ 및 6,750mg/ℓ 일 때 EG 및 TPA 합성폐수에 대한 이 공정의 ?????? 및 ???? 제거효율은 각각 98% 및 96%로 나타났다. 그리고 EG및 TPA를 탄소원으로 하는 혼합폐수의 경우 유입농도가 ????? 3,141mg/ℓ,???? 13,320 mg/ℓ 일 때 제거효율은 각각 94.3%, 98.2%로 나타났다. 고정화 bead의 평균직경이 4mm일 때 bead의 표면으로 부터 반지름의 18% 이상의 영역에서는 기질과 산소의 전달사항으로 인하여 세포의 성장이 저해를 받았다. 비기질제거속도와 유출 ?????농도의 관계로 부터 비기질이용 속도상수, ???및 ????는 각각 8.57 및 18.8l/ℓ bead.day로 나타났다. A process was developed to degrade EG (Ethylene glycol) and TPA (Terephthalic acid). Bacteria of Pseudomonas strains EAW and TS2 were immobilized in agaracrylamide. The optimum culture conditions were found to be pH 7.5 and 35 "C, respectively. ????? and ???? removal efficiency of this system for EG and TPA synthetic wastewater were 98 % and 96 % at retention time 36 hrs, when influent concentration was ????? 5235 mg/ℓ and ????? 6750 mg/ℓ. And, for the mixed synthetic wastewater of EG and TPA as carbon source, they were 94.3 % and 98.2 %, respectively, when influent concentration was ???? 3,141 mg/ℓ and ????? 13,320 mg/ℓ. The growth of cells in the other region of bead except 18 % of bead radius from surface was inhibited by substrate and oxygen transfer resistance. From relationship of specific substrate removal rate and effluent ????? concentration, the kinetic constants were found as ??? = 8.57 ℓ/ℓ bead.day and ???? = 18.8ℓ/ℓ bead.day, respectively.