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Rifampicin에 의한 것으로 추정되는 위막성 대장염1예
김수현,이은우,정종혁,문승현,김동한,양혁승,오영상,김호동,김도현,박혁,박정환,박경옥,이영직 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2
Pseudomembranous colitis, caused by altering the normal colonic flora and allowing the multiplication of Clostridium difficile, is an deleterious adverse effect of antibiotics. But it is rarely reported by rifampicin. Rifampicin is one of the first line drug in the treatment of tuberculosis and many patients are exposed to its potential adverse effects. We experienced a patient that had abdominal discomfort and hematochezia due to pseudomembranous colitis after receiving antituberculous medication, and which was probably caused by rifampicin. A 82 years old man was admitted with abdominal discomfort and hematochezia for one week. On the past history he had been diagnosed as endobronchial tuberculosis about 4 months ago. Colonoscopy revealed multiple discrete whitish mucosal lesion on rectosigmoid colon, and histologic findings were consistent with pseudomembranous colitis. The antituberculous agents were discontinued and vancomycin was administered. The patient's symptoms were resolved within several days. There was no recurrence after reinstitution of the antituberculous agents excluding rifampicin. We report here on a case of pseudomembranous colitis probably due to rifampicin.
박정열,조준식,김대연,이동헌,김종혁,김용만,김영탁,목정은,남주현 대한부인종양 콜포스코피학회 2002 Journal of Gynecologic Oncology Vol.13 No.3
횡문근육종은 소아와 청소년기에 가장 흔한 연부조직 육종이다. 발생 부위는 일반적으로 두부 및 경부, 그 다음으로 비뇨생식계이다 조직학적으로 배아성 횡문근육종, 국화상 육종, 폐포성 횡문근육종, 다형성 횡문근육종으로 나누어진다. 횡문근육종의 약 20%가 비뇨생식기에서 발생하고, 50% 이상이 배아성 횡문근육종이다. 여성 생식기의 배아성 횡문근육종은 드문 악성 종양으로,주로 유소아의 질에서 발생하며, 자궁경부에서 발생하는 횡문근육종은 청소년기에 흔하고, 질에서 기원하는 횡문근육종이 자궁경부에 기원하는 경우보다 5배 정도 많다. 폐경기여성에서는 자궁체부에서 가장 흔히 발생한다. 비뇨생식기의 횡문근육종의 치료는 과거에는 골반장기 적출술만으로 치료를 시도하였으나. 서서히 다중 항암화학요법, 방사선요법, 근치적 절제술을 포함한 병합요법으로 바뀌어가고 있으며, 이에 따라 생존율이 현저하게 향상되었다. 이에 저자들은 최근 본원 산부인과에서 자궁경부에 발생한 배아성 횡문근육종 2예를 경험하였기에 문헌 고찰과 아울러 보고하는 바이다. Rhabdomyosarcoma is the most common soft tissue sarcoma in childhood and young adult. Genitourinary tract is the econd most common site of rhabdomyosarcoma. Rhabdomyosarcoma can be classified into one of four major types; embryonal, alveolar, pleomorphic and undifferentiated. Embryonal rhabdomyosarcoma of the female genital tract is rare malignant tumor and usually occurs during childhood in the vagina. In rare cases, rhabdomyosarcoma can originate in the uterine cervix, with a peak incidence in the second decade. Recently we have experienced two cases of embryonal rhabdomyosarcoma of the uterine cervix. These cases are presented with a brief review of the literature.
김동혁,최조천,안동순 木浦大學校 情報産業硏究所 1998 情報産業硏究誌 Vol.6 No.-
New many system based on broadcasting and communication will be able to take a more useful and fast informations around out lifestyle. But ship, airplane and car never use the application of the cable communication system and also have a weak point of receiving qualitics using convennntional V/UHF TV broadcasting. One of typically case of mobile systems, a ship has been isolated long time during the navigation. However, For the last couple of years, the DBS have been proposed very useful systrm to access the broading service in more widely sea. But the antenna tracking system for maritime DBS receving is required complicated control system because of the those complex motion represented pitching, yowing and rolling etc. In our research, we have developed the antenna tracking system for receving in mobile.
김동혁 木浦大學校 情報産業硏究所 1993 情報産業硏究誌 Vol.1 No.-
In order to reconsider productivity of software this thesis designs system that can be reused the program module and present the source-to-source language translator to reusable program.
신혁수, 김동범, 박진근, 이인환, 조해용 충북대학교 산업과학기술연구소 2013 산업과학기술연구 논문집 Vol.27 No.2
A valve spring retainer is a small disc and located at intake and exhaust valve stem of engine. The retainer supports a valve spring and transmits spring force to a valve. Force is applied to the retainer repeatedly by a rocker arm. Durability of the retainer is an important factor of performance. Weight of retainer affect dynamic performance of engine. Therefore, optimal strength and weight of the retainer design are needed. In this study, stress distribution and fracture load of retainer were analyzed by using FEM to design optimal strength and weight. Static load test was simulated by using commercial FEM code DEFORM-3D. Shapes of the retainer to reduce weight were designed and analyzed to verify validity of it. Simulated results and experimental ones were compared
남동석,김혁수,심혜영 대한치과교정학회 발행 2005 대한치과교정학회지 Vol.35 No.6
Bolton 분석이 치아크기 부조화를 예측하기 위해 널리 사용되고 있지만 그 정확도에 대해서는 의문이 제기되어 왔다. 이에 본 연구는 부정교합자를 대상으로 하여 실제 전치부 부조화가 나타나는 양상을 조사하고, 그것에 영향을 주는 요인에 대해서 평가하고자 하였다. 연구대상은 다양한 부정교합 (ClassⅠ, ClassⅡ, Class Ⅲ surgery)을 가졌으며, 교정치료를 마친 80명의 환자들로 구성되었다. 치료 전 모형, 치료 후 모형으로부터 얻어진 셋업 모형, 그리고 치료 전후 측모 두부 X-선 계측사진을 분석하였으며 다음과 같은 결과를 얻었다. 한국인 부정교합자의 전치부 Bolton ratio는 Bolton의 표본 및 한국인 정상교합자 표본과 비교해 보았을 때 평균, 표준편차, 범위가 다소 크게 나타났다. 실제 전치부 부조화는 상악의 부족(deficiency)을 보이는 경우가 상악 과잉 (execess)을 보이는 경우보다 많았다. 전치부 Bolton ratio로부터 예측한 전치부 부조화는 셋업 모형을 통해서 얻은 실제 전치부 부조화와 비교해 보았을 때 차이를 보였다 (p<0.05). 성별 및 부정교합군은 실제 전치부 부조화에 유의한 차이를 보이지 않았다 (p>0.05). 수직피개와 상악 치아 절단연 두께는 실제 전치부 부조화와 상관관계가 거의 없는 것으로 나타났다. 다중회귀분석 결과 실제 전치부 부조화에는 치료 전 모형의 전치부 Bolton ratio, 치료 후 상악 전치가 교합평면과 이루는 각, 치료 후 절치간각, 치료 전 상악 우측 측절치 폭경 등의 요인이 기여하는 것으로 나타났다. Bolton analysis is widely used to predict tooth size discrepancy, but its accuracy has been challenged. The purpose of this study was to describe true anterior tooth size discrepancies among orthodontic patients and to evaluate the factors that affect true anterior tooth size discrepancies. The subjects consisted of 80 patients with varying malocclusions (ClassⅠ, ClassⅡ, ClassⅢ and ClassⅢ surgery) who were treated orthodontically. Pre-treatment models. set-up models from post-treatment models, and lateral cephalometric radiographs were analyzed. The results were as follows. The means, the standard deviations, and ranges of anterior Bolton ratio in the present study were somewhat higher than those of Bolton's samples and Korean normal samples. The number of patients showing maxillary deficiency was larger than that of patients showing maxillary excess in view of true anterior discrepancies. There was a significant diffrence between anterior Bolton discrepancy from pre-treatment medels and true anterior discrepancy from set-up models (p<0.05). There was no significant difference in true anterior discrepancies among malocclusion groups (p>0.05). And there was also no significant difference between the male and female groups (p>0.05). Overbite and the incisal edge thickness of maxillary anterior theeth have little relationship with true anterior discrepancies. Multiple regression analysis showed that true anterior discrepancy was mainly determined by anterior Bolton ratio. upper incisor to occlusal plane angle after treatment. interincisal angle after treatment, and upper right lateral incisor width.