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이준상(Joon Sang Lee),강종식(Jong Sik Kang),신윤원(Youn Won Shin),문중갑(Joong Kab Moon),이형룡(Heung Ryeong Lee),백옥지(Ok Ji Paik) 대한소화기학회 1989 대한소화기학회지 Vol.21 No.4
A 68-year-old womam, adrnitted with hemoperitoneum due to leiomyoma rupture of the ileum, required emergency operation. After a successful resection for the tumor, the patient was discharged with normal blood values and she has remained we]l. We should consider small bowel tumors in the evidence of chronic or repeated bouts of acute intestinal bleeding in the face of negative conventional X-rays and freedom from symtoms except those due to bleeding. The rarity of this case is emphasized and the literature reviewed.
이재중(Jae-Joong Lee),이준상(June-Sang Lee),김미로(Mi-Ro Kim),권혁수(Hyck-Su Kweon),나완수(Wansoo Nah) 대한전기학회 2012 전기학회논문지 Vol.61 No.2
In order to present that the electromagnetic compatibility standards following the frequency goes up which is based automotive electronics, in this paper, a hybrid/electric vehicle battery which reflects the frequency of the equivalent circuit model is introduced. By using this circuit modeling, the impedance characteristics can be analysed and an analyze of battery one cell is finished. Using this model, each different from the discharging situation, the discharge characteristic curve could be led. Basic theoretical approaches and measuring results through MATLAB and experimental validation of the EIS measurement equipment was used.
김우중(Woo Joong Kim),이명석(Myung Seok Lee),이준상(Jun Sang Lee),김지현(Ji Hyun Kim),양형원(Hyung Won Yang),김경환(Gyoung Hwan Kim),김경희(Gyoung Hee Kim) 대한소화기학회 1997 대한소화기학회지 Vol.30 No.5
Acquired tracheoesophageal fistula through esophageal diverticulum is infrequent, and they are caused by carcinoma, trauma, infection, and traction. The most common clinical findings are cough associated with eating, production of sputum mixed with food, and weight loss with profound weakness. In the vast majority of patients, diagnosis was made using esophagography, fiberoptic esophagoscopy and bronchoscopy. We reported a case of non-malignant tracheoesophageal fistula through esophageal diverticulum combined with aspiration pneumonia found in a 34 year old woman who complained of chronic coughing, fever, and frequent episodes of paroxysmal coughing. Patients symptom and condition improved after surgical repair including fistulectomy with esophageal repair, and segmental lobectorny. (Korean J Gastroenterol 1997; 30:677-683)
누화 특성 감소를 위한 MEMS 프로브 커넥터 시스템의 설계
배현주(Hyeonju Bae),김종현(Jonghyeon Kim),이준상(June-Sang Lee),Bo Pu,이재중(Jae Joong Lee),나완수(Wansoo Nah) 한국전자파학회 2012 한국전자파학회논문지 Vol.23 No.2
본 논문에서는 프로브 커넥터 핀의 누화 특성이 ―30 dB 이하를 만족시키는 핀의 피치 및 길이 파라미터에 대한 설계 기준을 제시하였다. 프로브 커넥터 핀의 누화 특성을 분석하기 위하여 격자 구조로 배열된 프로브 커넥터 핀의 인덕턴스 성분과 커패시턴스 성분을 추출하였으며, 접지 핀의 개수가 증가해도 이미 계산된 파라미터들을 이용해서 새로운 커패시턴스 및 인덕턴스 성분들을 쉽게 계산할 수 있음을 보였다. 또한, 신호(signal) 핀 주변에 위치한 접지(ground) 핀 개수를 증가시키면서 누화 특성을 향상시키는 알고리즘을 제시하였으며, 특히 접지 핀 개수의 증가가 자기장 결합(inductive coupling)에 의한 누화를 효과적으로 제거시킨다는 것을 보였다. 최종적으로는 주어진 접지 핀 개수 및 형상 하에서 ―30 dB 이하의 누화 특성을 만족하는 핀의 피치 및 길이를 결정하는 영역을 도시하였으며, 이는 프로브 커넥터 시스템의 누화 특성 설계 시 유용하게 사용할 수 있을 것으로 사료된다. In this paper, we propose a design method that the crosstalk of probe connector pins satisfy the limitation of ―30 dB. The parameters(inductance and capacitance) were extracted in the grid-structured probe connector pin system, and it is shown that the new parameters are easily calculated with increasing ground pin numbers using the previously calculated parameters. In addition, the crosstalk reduction algorithm by employing more grounds around the signal pin has been suggested, and it is confirmed that the suggested method is quite effective especially for the reduction of inductive couplings. Finally, we suggested the correlation between the pitch and the length of the pins to satisfy the crosstalk limitation of ―30 dB with the given number of ground pins, which will be quite useful when design a probe connector pin system.
간장 ( 肝臟 ) 및 담도 ( 膽道 ) : 특발성 세균성 복막염 환자의 예후 결정 인자에 관한 연구
강종식(Jong Sik Kang),문중갑(Joong Kap Moon),이승주(Seung Ju Lee),이정웅(Jung Woong Lee),정찬수(Chan Su Jeong),이준상(Jun Sang Lee) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.2
N/A We examined 34 cases of spontaneous bacterial peritonitis retrospectively to evaluate the factors influencing prognosis in spontaneous bacterial peritonitis. The obtained results were as follows. The groups with higher serum bilirubin, lower ascitic glucose concentration, more abnormal y-GTP, combined hepatic encephalopathy and positive ascitic culture showed poor prognosis significantly. Also, the groups with increased frequency of admission by spontaneous bacterial peritonitis and cultured enteric organism (esp.E.coli) in ascites tended to show poor prognosis. But, fever, serum creatinine level, PMN fraction in ascites or peripheral blood, and postitive blood culture were not related to prognosis statistically.