각종 소화성질환에서의 Campylobacter Pylori의 검출에 관하여

허정욱,강영우,박준호,박승국,하경임,김재룡,안성훈,박선우 啓明大學校 醫科大學 1988 계명의대학술지 Vol.7 No.2

Peptic disorders are among the most common maladies in korea as the world. In most cases their etiologies not be established and their pathophysioolgy remain obscure. Although the persence of fastric bacteria has been logn established, recently campylobacter pylori seems to be etiologic agent of peptic disorders. Campylobacter pylori is visualized in most cases of peptic disorders and not visualized after treatment of bctericidal agents, bismuth compound or metronidazole. We had a following results for identification of campylocacter pylori in stomach and duodenal mcuosa via endoscipc biopsy. 1. We studied 54 patients who had dyspeptic symptoms, 29 males. 2. Most patients are in 5th decades, next in 3rd and 6th in order. 3. Ptients were composed of 27 peptic ulcer, 22 gastitis and 5 gastric carcinoma. 4. Campylobacter pylori was identified in 69% of total patients, peptic ulcer 63%, gastritis 77%, stomach carcinoma leastly.

NP-완전 문제를 위한 페트리넷 모델링

허성우 東亞大學校 附設 情報通信硏究所 1997 情報通信硏究所論文誌 Vol.5 No.1

In this paper, we show that some graph-related NP-complete problems can be represented by Petri nets moldel and that the question for an NP-complete problem can be changed to a reachability problem for the corresponding Petri net. All problems in the paper are modeled with low level Petri nets. Every modeling has been dine with polynomially bounded nimber of lpaces, transitions, arcs and initial tokens with respect to |V|,|E| and K if the original problem is specified with a graph G=(V,E) and a constant K.

정렬 및 탐색을 위한 효율적인 동적 알고리즘

許聖雨,金永鈺 東亞大學校 附設 情報通信硏究所 1993 情報通信硏究所論文誌 Vol.1 No.1

정열 및 탐색은 자료 관리를 효율적으로 하기 위해 아주 빈번히 사용되는 연산이다. 그리고 많은 자료 구조 가운데 정렬과 탐색이 동시에 동적으로 가능한 자료구조는 이진탐색트리를 들 수 있다. 그러나, 이진탐색트리에서도 정렬된 결과를 얻기 위해서는 중위순회를 해야만 한다. 더구나 이진탐색트리로는 영역탐색이 불가능하다. 본 논문에서는 확장된 이진탐색트리인 K-트리를 제안하고, 이를 이용하여 중위순회를 하지 않고서도 정렬된 결과를 얻을 수 있는 알고리즘을 보인다. 또한 이 알고리즘을 이용하면 영역탐색도 가능함을 보인다. K-트리는 AVL-트리로 유지되기 때문에 새로운 노드의 삽입에 필요한 시간 복잡도는 O(log n)이다. 여기서 n은 기존 K-트리에 있는 노드의 갯수이다.

유크리디안 신장트리를 구하기 위한 동적 알고리즘

허성우 동아대학교 공과대학 부설 한국자원개발연구소 1988 硏究報告 Vol.12 No.1

This paper presents an O(n) algorithm for finding new EMST(Educlidian Minimum Spanning Tree) using Voronoi diagram when we are given Voronoi diagram and EMST on n points and a new input point. The algorithm consists of 6 steps as follows : Step 1. Determine fundamental cycles. Step 2. Find new nearest neighbors. Step 3. Obtain reduced graph G^(r) Step 4. Find minimum spanning tree T′ from G^(r) Step 5. Find farther node for each node in T′ Step 6. Update EMST.

제주연안에 서식하는 망둑어과 어류의 소화관 구조 및 조직학적 연구

허상우,노섬,김형배,이영돈 한국어류학회 2004 韓國魚類學會誌 Vol.16 No.1

제주연안에 서식하는 망둑어과 어류인 바닥문절, S. geneionema과 별망둑, C. gulosus 소화관의 형태와 조직학적 특성을 조사하였다. 바닥문절은 소화관 길이가 짧고 (RLG 0.45), 단순한 형태를 가지고 있으며, 위와 유뮨수는 가지고 있지 않다. 별망둑은 소화관 길이가 짧고 (RLG 0.43). 단순한 형태의 위를 가지고 있으며, 유문수는 가지고 있지 않다. 별망둑은 위선이 잘 발달된 위를 가지고 있다. 바닥문절 소화관의 점막주름은 다양한 형태를 가지고 있다. 장에 있어서 근육층의 두께, 점막주름의 길이는 유사한 양상을 하였다. 장 점막주름의 길이는 두 종 모두 전장부에서 다른 부분보다 길었다. 장 근육층의 두께는 두 종 모두 전장부에서 후장부로 갈수록 두꺼워지는 양상을 나타내었다. 점액을 분비하는 배상세포는 바닥문절의 경우 후장부, 별망둑의 경우 중장부에 가장 많이 분포하였다(P〈0.05). The morphology and histological characteristics of the digestive tract of two gobiid species, hairychin goby (Sagamia geneionema) and gluttonous goby (Chasmichthys gulosus), were investigated in the coastal area of the Jeju Island, Korea. The hairychin goby has a short (relative length of gut 0.45), simple gut and no obvious stomach and pyloric caeca. The gluttonous goby has a short (relative length of gut 0.43), simple gut and stomach, but no obvious pyloric caeca. Gastric gland cells are well developed in the stomach of gluttonous goby. In the mucosal fold of the intestine, hairychin goby has a regular branched form and gluttonous goby has a rather complex branched form. The length of mucosal fold and thickness of the muscle layer were similar in the two species. The length of mucosal fold was longer in anterior intestine portion, and the thickness of muscle layer was thicker in posterior intestine portion. In the number of mucous - secreting goblet cells, the hairychin goby was higher in the posterior intestine portion, and the gluttonous goby was higher in the mid-intestine portion (P< 0.05).

문서 압축율 개선을 위한 전처리 알고리즘

허성우,김미경 東亞大學校 附設 情報通信硏究所 1994 情報通信硏究所論文誌 Vol.2 No.1

본 논문에서는 한글 2 바이트 조합형 코드와 영어 ASCII 코드를 이용하여 작성된 문서화일의 압축율 개선을 위한 전처리 알고리즘 세 가지를 소개한다. 첫번째 알고리즘 HUFF에서는 초성, 중성, 종성 각각을 위한 허프만 코드를 이용하여 저장하고, 두번째 알고리즘 EXTEND에서는 한글 각 음소에 한 바이트씩 할당하여 저장하고, 마지막 알고리즘 M_EXTEND에서는 한글 뒤에 따라 오는 공백 문자와 줄바꿈 문자를 앞의 한글에 병합하여 처리한다. 알고리즘 HUFF에서는 중간화일의 크기는 작아지나 최종적인 압축율은 개선되지 않았고, 알고리즘 EXTEND에서는 중간화일의 크기는 20% 정도 증가하나 최종 압축율 면에서는 전처리 하지 않은 것에 비해 약 10% 정도 개선되었고, 알고리즘 M_EXTEND에서는 중간화일의 크기는 거의 증가하지 않으면서 최종 압축율 면에서는 약 10% 정도 나아짐을 볼 수 있었다.

혈우병 환자의 임상 양상에 관한 단일기관 연구

허지혜,김형욱,김영대,이영호,김남수,설인준,김상우 인제대학교 2006 仁濟醫學 Vol.27 No.-

Objective : We analyzed and investigated clinical manifestations, laboratory tests, and inhibitor development of hemophilia that had not been thoroughly studied. Methods : We retrospectively reviewed 96 patients with hemophilia who were registered in the Hanyang University hospital from Jan, 1984 to Dec, 2003, Results : The total patients, whose median age at onset was 46.0 months, in clude 84 cases of type A (87.5%) and 12 cases of type B (12.5%). The most common chief complaint was a traumatic hemorrhage. The family histories of hemophilia were revealed in 41 cases (42.7%). The median activated partial thromboplastin time (aPTT) was 66.7 seconds. The number of severe cases was 39 (40.6%). Inhibitors were present in 13 cases (13.5%) and seven cases (53.8%) were high responders. aPTT and factor levels showed reverse correlation (r=-0.467). aPTT is more prolonged in group without family history than the group with family history (P=0.037). Conclusion : In this study, the diagnosis of hemophilia are made at the lower age and the serological positivity of the HCV is decreased. Activated partial thromboplastin time and factor levels shows reverse correlation. Activated partial thromboplastin time is more prolonged in group without family history compared with group with family history. The frequencies of family history are lower than those of other developed countries, because of concealing the family history of hemophilia. The prevalence of the development of inhibitors increased compared with those of previous studies in Korea, but was lower than those of other countries. Further studies would be necessary to decrease the inhibitor development.

平面 上에서 加重値가 부여된 점들로부터 最大區間, 最大 링, 最大 圓 및 最大 直四角形을 찾는 효율적인 알고리즘

許聖雨 東亞大學校 海洋資源硏究所 1990 硏究論文集 Vol.3 No.1

This paper represents an optimum algorithm with θ(n)-time complexity for finging maximum interval when we are given n weighted points in E¹. Using the idea for maximum interval this also shows efficient algorithms for finding maximum ring with O(n²log N)-time, maximum circle with O(n²log n)-time, maximum rectangle with O(n³)-time in E².

도시 저소득층 고령 주민의 구강건강실태

허복,박수병,김진범,손우성 韓國保健敎育學會 1996 보건교육건강증진학회지 Vol.13 No.1

The oral health status and practices related to oral health among 44-54-year-, 564-year- and 65-year-old needy residents were assessed. The subjects were the residents at the Unbong Permanent Rental Apartment, Bansong-dong, Haeundae-gu, Pusan, Korea. An oral epidemiological survey was undertaken to determine the status of dental caries and periodontal health. Periodontal health were analyzed by the tool of CPITN(Community Periodontal Index of Treatment Needs). A questionnaire was used to interview for the practices of toothbrushing. The numbers of subjects were 192 for the interview on toothbrushing, 228 for the survey of dental status and 208 for the survey of periodontal status. The major results were as follows: 1. Toothbrushing frequencies per day were 1.9 among 44-54-year-, 1.7 among 55-64-year- and 1.7 among 65+-year-subjects. Percentages of after-meal-toothbrushings among total brushing frequencies per day were 73.7% among 44-54-year-, 70.6% among 55-64-year- and 76.5% among 65+-year-subjects. 2. DMFT indices were 15.5 among 44-54-year-, 16.4 among 55-64-year- and 26.6 among 65-year-subjects. Decayed teeth component of DMF teeth were 23.9% among 44-54-year-, 11.6% among 55-64-year- and 62.8% among 65+-year-subjects. Missed teeth component of DMF teeth were 55.59% among 44-54-year-, 62.8% among 55-64-year- and 77.4% among 65+-year-subjects. Filled teeth component DMF teeth were 20.0% among 44-54-year-, 25.0% among 55-64-year- and 10.9% among 65+-year-subjects. 3. Sound permanent teeth were 16.4 among 44-54-year-, 15.6 among 55-64-year-, and 5.4 among 65+-year-subjects. Present permanent teeth were 23.7 among 44-54-year-, 21.6 among 55-65-year- and 10.9 among 65-year-subjects. 4. Subjects who needed professional oral prophylaxis were 75.0% among 44-54-year-, 83.3% among 55-64-year- and 76.9% among 65-year-subjects. Subjects who needed complex periodontal treatments were 16.7% among 44-54-year-, 13.3% among 55-64-year- and 15.4% among 65+-year-subjects. 5. Sextants which needed professional oral prophylaxis were 59.3% among 44-54-year-, 71.5% among 55-64-year- and 71.5% among 65+-year-subjects. Sextants which needed complex periodontal treatments were 5.6% among 44-54-year-, 4.1% among 55-64-year- and 5.7% among 65+-year-subjects. 6. Systematic comprehensive oral health care services should be developed for old needy residents in urban area.

柔軟 生産 시스템을 위한 非線形 生産計劃 問題의 定式化 및 解法

허성관,우병훈,조영구 대구대학교 산업기술연구소 1992 産業技術硏究 Vol.11 No.-

FMS is the system controlled by a computerized conveyer and the system that numerically controls the machines which manufacture the variety of parts of medium lot size. In a metal cutting industry, a FMS is designed for the purpose of obtaining the well-balanced efficiency in the process of moving the machines. The characteristics and restrictions of this system are similar to the process of ordered system. In this paper, we defines a set of five production scheduling problems which present a solution to the efficient usage of FMS. These problems are formulated by the nonlinear mixed 0-1 integer programming problems. In order to obtaining the solution procedure, we test some linearization approaches and apply to the real data set of existing FMS system. For the computational efficiency, we reduce the number of constraints of linearized integer problems. Computational results reveals that the the computational times are within the acceptable level by the use of the linearization approaches and standard MIP code. If a special-purpose MIP code is used with utilize the structures of the problem, the large scale problem can be solved also.