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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.
혈청학적으로 진단된 급성 간질증 ( fascioliasis )
김부성(Boo Sung Kim),이창돈(Chang Don Lee),강숙영(Sook Young Kang),안병민(Byung Min Ahn),박영민(Young Min Park),유지홍(Jin Hong You),정규원(Kyue Won Chun),김성훈(Sung Hoon Kim),조승열(Seung Yull Cho) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.3
Fasciola sp, a king of the liver fluke (Trematodes), is a common parasite of sheep and cattle carrying the disease known as liver rot. Its distribution is world-wide although of the rarity and the different frequency of human infestation by area: more prevalent in Europe and Latin America than in Asia. In Korea, there are some evidencs of the infestation in cattle. And there have been a few reports of human infestation so far. The authours experienced a typical case of acute fascioliasis. The patient was 54-year-old house- wife who didnit have any history of th exposure to metacercaria but had a large subcapsular hemorrhage and multiple collections of parenchymal hemorrhage in right lobe that were consisted of massive eosinophilia (81%). We could never detect eggs in stool but got strong positive result in serologic test for parasite-specific IgG antibody by micro-ELISA (0.81:positive>0.25).
김부성(Boo Sung Kim),박석영(Suk Young Park),임계순(Kae Soon Im),김영우(Young Woo Kim),백남종(Nam Jong Baeg),박준철(Jun Chul Park),신호균(Ho Kyun shin),김석영(Suk Yong Kim) 대한소화기학회 1987 대한소화기학회지 Vol.19 No.2
Adenomatous polyps of the stomach have a well-defined risk for malignancy. As lesions become increasingly seesile and of increasing size, the risk of cancer increases. Recently most peduncleated or small sessile polyps can be removed with an electrocautery snare during gastroscopy. But endos- copic removal of larger sessile polyps or those with abroad pedicle may cause severe bleeding, so such lesions should be removed surgically. We experienced a flat carpet type adenomatous polyp of the stomach. A'e did endoscopic Nd-YAG laser therapy without complications.
김부성(Boo Sung Kim),박석영(Suk Young Park),임계순(Kae Soon Im),김영우(Young Woo Kim),백남종(Nam Jong Baeg),한준열(Joon Yeol Han),김석영(Suk Young Kim),박준철(Jun Chul Park) 대한소화기학회 1987 대한소화기학회지 Vol.19 No.2
A palliative treatment technique for esophageal carcinoma using endoscopic Nd - YAG laser therapy is described in 10 patients for whom no curative therapy is possible. Tumors ranged in length frorn 5 to 9 cm with a mean 7.2 cm and luminal diameter ranged from 1 to 5 mm with a mean of 2 mm. The mean number of treatments required to remove obstruction was 5.9 (range 3-12) and the time required to archieve successful luminal opening ranged from 6 to 28 days (mean 13.1 days). The mean total energy required was 33601 Joules. In 10 of 11 cases of treatment, clinical, endoscopic, radiographic improvement was noted. One relapse of dyspnea was successfully managed by the same procedure. Tracheoesophageal fistula occurred in 1 of 11 cases of endoscopic laser therapy. The overall results show that the endoscopic laser therapy relieve dysphagia, the most frequent symptom, rapidly and effectively. Endoscopic laser therapy will be an important palliative treatment of esophageal carcinoma.
간장 및 담도 : 간성뇌증에 대한 분지아미노산 수액제제 ( Pamisol ) 의 임상효과
김부성(Boo Sung Kim),이창돈(Chang Don Lee),이영석(Young Sok Lee),정진우(Jin Woo Jeong) 대한소화기학회 1986 대한소화기학회지 Vol.18 No.2
N/A A randomized clinical study ivas conducted in 30 hospitalized patients with protein-intolerant hepatic encephalopathy who were given a branched-chain enriched amino acid solution (Pamisol) until they developed stage I encephalopathy. In addition to this study, we determined fractional amino acid concentrations following infusion. The results were as follows: 1) Among thirty cases of hepatic encephalopathy the clinical manifestations were improved in 14 cases (78%) among 18 male patients while they were 9 cases (75%) among 12 female patients. 2) During tbis study twenty-five cases (83.3%) survived and 5 cases (16.7%) expired among 30 studied cases. 3) There were no significant differences in concentrations of branched-chain amino acid before and after infusion of pamisol. 4) In concentrations of aromatic amino acid during this study, there were significant decrease after infusion of pamisol. The results strongly suggest that infusion with branched-chain enriched amino acid solution (Pamisol4) is well tolerated with improvement in hepatic encephalopathy and it coincides with the achievement of nitrogen equilibrium and adequate nutritional support.
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.
김부성(Boo-Sung Kim),유창경(Chang-Kyung Ryoo),방효충(Hyochoong Bang),정을호(Eulho Chung) 한국항공우주학회 2006 韓國航空宇宙學會誌 Vol.34 No.1
본 논문은 레이더와 같은 지상의 다수위협이 존재하는 상황에서 무인항공기의 비행경로 최적화에 관한 것이다. 레이더에 의한 피탐성, 즉 비행체에 의해 반사되는 레이더 신호강도를 최소화하면서 목적지까지의 비행시간을 최소화하는 관점에서 성능지수를 제안하였다. 1차의 시간지연 시스템으로 가정된 비행체의 경사각을 제어입력으로 고려하였으며, Sequential Quadratic Programming기법에 기반한 입력 파라미터 최적화 기법을 사용하여 궤적최적화를 수행하였다. 제안된 무인 항공기 경로계획 기법은 Voronoi 선도기법과 비교하였을 때, 생존성을 증대시키면서도 항공기의 역학적 특성을 고려한 비행경로를 제공한다. This paper addresses the trajectory optimization of Unmanned Aerial Vehicles (UAVs) under multiple ground threats like enemy's anti-air radar sites. The power of radar signal reflected by the vehicle and the flight time are considered in the performance cost to be minimized. The bank angle is regarded as control input for a 1st-order lag vehicle, and input parameter optimization method based on Sequential Quadratic Programming (SQP) is used for trajectory optimization. The proposed path planning method provides more practical trajectories with enhanced survivability than those of Voronoi diagram method.
위장관 ( 胃腸管 ) : 말기 식도암의 치료로 내시경적 레이저 치료술 , 화학요법 , 경피 내시경하 위수술을 이용한 2예
김부성(Boo Sung Kim),임계순(Kae Soon Im),백남종(Nam Jong Baeg),한준열(Joon Yeol Han),안병민(Byung Min Ahn),김현응(Hyeon Eung Kim) 대한소화기학회 1991 대한소화기학회지 Vol.23 No.4
N/A Chemotherapy and palliative treatment techniques for advanced esophageal carcinoma using endoscopic Nd-YAG laser and percutaneous endoscopic gastrostomy were performed in two patients for whom curative therapy was not possible. They were not able to eat solid food and were severely undernourished. After successful endoscopic laser therapy and balloon dilation the size of the mass decreased and endoscope passed freely. Because there were many risks and difficulties in esophageal endoprosthesis, we performed percutaneous endoscopic gastostomy. We were able to give adequate nutritional support through it. The endoscopic laser therapy and percutaneous endoscopic gastrostomy will be one of the modalities for palliative treatment of advanced esophageal carcinoma.