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- 저자 : 김부성 ( Boo Sung Kim ) (검색결과 227 건)
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김부성,김석윤,Kim, Boo-Sung,Kim, Seok-Yoon 대한전자공학회 1999 電子工學會論文誌, C Vol.c36 No.8
빠르고 정확한 결과를 얻기 위해서 타이밍 수준에서의 회로 해석이 이루어지며, 게이트와 연결선에서의 신호 지연 해석은 회로의 설계 검증을 위하여 필수적이다. 본 논문에서는 CMOS 회로 게이트에서의 지연 시간과 연결선의 지연 해석을 위한 초기 천이 시간을 동시에 계산할 수 있는 방법을 제시한다. 회로 연결선의 유효 커패시턴스 개념을 이용하여 게이트의 지연 시간과 게이트에서의 구동 저항을 고려한 연결선 선형 전압원의 천이 시간을 계산한다. 게이트 지연과 연결선 선형 전압원의 천이 시간을 구하는 과정은 예비 특성화된 게이트 타이밍 데이터를 이용하여 반복적인 연산과정을 통하여 동시에 구하게 된다. 기존의 게이트 지연 계산 알고리즘은 연결선 선형 전압원의 천이 시간을 위해 별도의 게이트 특성 데이터를 필요로 하였으나, 본 논문에서 제시하는 방법은 계산 과정 중에 생성된 데이터를 이용함으로써 현재의 예비 특성화 방법을 수정하지 않고서도 효율적인 타이밍 수준의 게이트 및 연결선 지연 시간 예측이 가능하도록 하였다. Timing-level circuit analyses are used to obtain fast and accurate results, and the analysis of gate and interconnect delay is necessary to validate the correctness of circuit design. This paper proposes an efficient algorithm which simultaneously calculates the gate delay and the transition time of linearized voltage source for subsequent interconnect delay calculation. The notion of effective capacitance is used to calculate the gate delay and the transition time of linearized voltage source which considers the on-resistance of driving gate. The procedure for obtaining the gate delay and the transition time of linearized voltage source has been developed through an iterative operation using the precharacterized data of gates. While previous methods require extra information for the transition time calculation of linearized voltage sources, our method uses the derived data during the gate delay calculation process, which does not require any change in the precharacterization process.
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김부성(Boo Sung Kim),이창돈(Chang Don Lee),정진우(Jin Woo Jeong),최상욱(Sang wook Choi),박영민(Young Min Park),한남익(Nam Ik Han),유석환(Suk Hwan Yu) 대한소화기학회 1989 대한소화기학회지 Vol.21 No.1
N/A Nizatidine is new H2-receptor blocker with a thiazole ring. We evaluate the clinical efficacy and safety of the Nizatidine in 30 cases of endoscopically-proven peptic ulcer diseases. Nizatidine was administered 150 mg twice daily for 4 or 8 weeks and then followed by endoscopy. Overall improvement of peptic ulcer diseases by endoscopic evaluation noted in 26 (86.9%) of 30 patients. 7 out of 8 cases (87.5%) of gastric ulcers and 19 out of 22 cases (86.3%) of duodenal ulcers had been healed in 4 or 8 weeks. Clinical symptoms of peptic ulcer diseases had been improved in 29 out of 30 cases (96.7%) after 4 or 8 weeks medication with Nizatidine. No significant clinical side effects and laboratory changes had been noticed during therapy. In conclusion, nizatidine was effective and safe drug for the treatment of peptic ulcer diseases.
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김부성(Boo Sung Kim),정인식(In Sik Chung),정진우(Jin Wu Jeong),박두호(Doo Ho Park),이창돈(Chang Don Lee),권혁호(Hyuk Ho Kwon),김재유(Jae Yoo Kim),서정민(Jung Min Suh) 대한소화기학회 1987 대한소화기학회지 Vol.19 No.1
Since the advent of effective antituberculous chemotherapy, the frequency and severity of intestinal tuberculosis have markedly decreased in the world. However, intestinal tuberculosis continues to be reported with impressive frequency in Korea. But the tuberculous involvement of the stomach and duodenurn is extremely rare event. Recently, we experienced a case of tuberculosis of stomach and duodenum with extensive intestinal involvement. Patient is a 27-year old female and the diagnostic confirmation was attained by histologic findings of endoscopic biopsy specimen. Administration of antituberculous agents resulted in good response. So, we report this case with review of literatures.
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간장 및 담도 : 담도회충증의 임상 중상과 내시경적 치료 - 담낭염 및 췌장염 -
김부성 ( Boo Sung Kim ),정진우 ( Jin Wu Jeong ),유혜신 ( Hye Sin Yu ),조상덕 ( Sang Deok Cho ),정성룡 ( Sung Ryung Chung ),유경진 ( Kyung Jin Yoo ) 대한소화기학회 1986 대한소화기학회지 Vol.18 No.1
N/A Ascaris lumbricoides infection is usually asymptomatic, but when invasion of the ascaris to the human biliary tract is a prominent medical and surgical problems. Here we have two case reports of common bile duct ascariasis, which clinical manifestations were different each other, one is acute pancreatitis form and the other is acute cholangitis form. The management of biliary obstruction caused by ascaris lumbricoides has usually been surgical, but this report describes the endoscopic removal of the ascaris located in the common bile duct.
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김부성(Boo Sung Kim),박두호(Doo Ho Park),서정민(Jeong Min Suh),심규식(Kyu Sik Shim),안병민(Byung Min Ahn),양영상(Young Sang Yang) 대한소화기학회 1994 대한소화기학회지 Vol.26 No.1
Solid and papillary epithelial neoplasm of the pancreas is a rare tumor of low malignant po- tential. It tends to occur chiefly in young women. The origin of the tumor is still uncertain, although the studies from immunochemical staining suggest an origin from exocrine or endo- crine pancreas. The tumor is apparently curable by surgical excision in most cases, so it is very important to make a correct diagnosis before surgery. We present here a case of solid and papillary epithelial neoplasm of the pancreas occurred in 51-year-old woman, and a review of literatures.(Korean J Gastroenterol 1994; 26: 214-217)
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2009년 국내 Influenza A의 대유행과 급성 A형간염 발병률의 감소
김부성 ( Boo Sung Kim ),박재우 ( Park jae woo ),변진명 ( Jin Myung Byun ),김상균 ( Sang Gyune Kim ),( Yuan Yuan Zhang ),김영석 ( Young Seok Kim ),정승원 ( Soung Won Jeong ),장재영 ( Jae Young Jang ),홍수진 ( Soo Jin Hong ),문 대한소화기학회 2012 대한소화기학회지 Vol.59 No.5
Background/Aims: There was a spiking incidence of acute hepatitis A (AHA) in 2009 summer, but it went down drastically after an outbreak of influenza A (H1N1). We assessed the relationship between 2009 H1N1 pandemic and AHA prevalence from August to December 2009. Methods: We compared AHA cases nationwide and in our hospital for the period from the latter half of 2008 to the end of 2010. H1N1 cases in our hospital from August 2009 to December 2009 were included in the study and the correlation between 2009 H1N1 pandemic and AHA prevalence was assessed. Results: The national surveillance system reported 2,233, 7,895, 15,231 and 7,660 AHA cases from 2007 to 2010, respectively. A similar trend was noted in our hospital in the same periods. Although the national total incidence was increased in 2009, it showed steep decreasing trend line in the final 21 weeks of 2009 (weeks 32-52), as compared with 2008 and 2010. The mean weekly incidence percentage (AHA cases in a week/total in a year) in weeks 32-52 of 2009 was 1.17±0.55%, significantly lower than that in 2008 and 2010 (1.61±0.43% and 1.56±0.51%; p<0.001). Furthermore, we found a significant negative correlation between 2009 H1N1 pandemic and AHA in our hospital for weeks 32-52 of 2009 (r=-0.597; p<0.001). Conclusions: The widespread occurrence of 2009 H1N1 pandemic highlighted the benefits of health care and good hygiene, such as effective hand washing and wearing of masks, which may have also interrupted hepatitis A virus transmission. (Korean J Gastroenterol 2012;59:360-365)
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