관동맥 스텐트 삽입후 발생한 스텐트 변연부 박리의 예측인자 및 추가적 치료후 임상적 의의에 관한 연구 : Predictor, Angiographic and Clinical Follow-up after Additional Procedures

두영철,박수종,김재삼,이준호,홍경순,박대균,한규록,오동진,유규형,임종윤,고영박,이광학,이영 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.11

습관성 흡연여성에서 후측 수부에 발생한 Buerger씨병

김삼,이남호,육청미,최영진,백대균,홍경순,두영철,한규록,오동진,유규형,임종윤,이광학,이영 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.7

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.

大學敎育의 評價方法 改善方案에 關한 硏究

李揆成,權相善,金大倫,朴哉林,林鍾吉,朴英淑 新羅大學校 1982 論文集 Vol.12 No.-

The present study aims to develop of evaluation method for college education. This study consiste of two parts: to identify the corelation between the freshmen's scores of pre-test for entrance examination and their scores of freshmen's year, and to make suggestions for the improvement of evaluation method in college on the basis of the former study results. Seen from the above mentioned aspects of this study, this study has meanings in its seek for a rational curriculum improvement and in its research of the pilot curriculum which presupposes the alleged system of limited graduation quota. This research which is conducted by above mentioned purpose andmeanings can be summerized as follows; 1) The freshmen's mean score of the-pre-test of college entrance examination is 192. 38. Among the departments of natural scienc attained the most higher score(204.22). and department of arts and gymnastics 162. 02 which is below average score. 2) In the achivements of the freshmn'e year the departments of natural sciences obtained the best results, followed by the departments of arts and gymnastics, education, and cultural aciences in oder. 3) There is no corelation between the pre-test scores of college entrance examination and the college achivement results. 4) The mean scores of the major and teaching subjects geneally increas as they go up into the advanced school years. 5) Each department has their own method of evaluation. 6) Teaching syllabus is asked to be presented whit the direction of clas, contents, purpose, and specific items of evaluation. 7) Achivements of college work must be evaluated by the normal distribution curve with the facts about specific factors of the study and students group taken into consideration.

Watershed 문자 영상 변환에 관한 연구

이호준,최영규,이상범 단국대학교 2001 산업기술연구 Vol.2 No.-

Watershed algorithm has been used to extracting the boundary of image. Watershed algorithm has the structure of four steps and has many varieties. The result of watershed algorithm differs according to each structure of watershed algorithm. Also performance time differ according to other method in each steps of watershed algorithm. Numbers of Minima are associated with performance time of watershed algorithm and are influenced quality of the result. In this paper, we applied watershed algorithm to watershed character image transformation. In character image, watershed algorithm has problem of over-segmentation. Over-segmentation is increased in performance time and has low quality of the result. In problems, we are constructed watershed algorithm effectually. These are decreased in performance time and have high quality of the result. Besides Over-segmentation has not. In this paper, watershed character image transformation was managed the boundary which contains noise. This image has histogram values, which are managed effectively by image. In this experiment, we have been estimated for performance time and quality in image. Performance time of this paper method is decreased many time. While this paper is removed noise effectively which is in the part of overlap stroke.

중증 재생불량성 빈혈 환자의 동종골수이식 후에 병발한 간정맥폐색질환(Hepatic Veno-Occlusive Disease)의 임상 경과 및 혈액응고 인자들의 변화

이제환,이규형,최성준,민영주,김신,이정신,김상희,박찬정,지현숙,김우건 대한조혈모세포이식학회 1999 대한조혈모세포이식학회지 Vol.4 No.2

연구배경: 재생불량성 빈혈 경우에는 조혈모세포 이식 후 VOD의 발생에 관한 보고가 거의 없는 실정이다. 저자 등은 cyclophosphamide와 antithymocyte globulin으로 전처치 후에 동종골수이식을 시행한 재생불량성 빈혈 환자들을 대상으로 하여 VOD의 발생과 임상 양상, 혈액응고 인자들의 변화에 관하여 분석하여 보았다. 방법: 재생불량성 빈혈로 동종골수이식을 시행 받은 13예 환자를 대상으로 하였다. 임상적 기준에 따라 VOD를 진단하였으며 임상 경과에 따라서 경중을 분류하였다. Protein C, protein S, antithrombin Ⅲ, tPA, PAI-1 등의 혈액응고 인자들을 전처치 투여전, 골수 주입당일, 이식 후 제7, 14, 21일에 측정하였다. 결과: 7예(53.8%)에서 VOD가 발생하였으며, 경증 5예, 중등도 2예였다. VOD군에서 혈소판치가 20.000/㎕ 이상을 유지하는 데까지 걸리는 시간이 더 길었다(p=0.026). 또한 VOD군에서 적혈구 및 혈소판의 수혈 요구량이 각각 유의하게 많았다(p=0.025, 0.015). 혈액응고 인자들의 변화를 보면, 제 0일에 VOD군에서 PAI-1의 혈중 농도가 유의하게 더 높았다.(p=0.034). 결론: 재생불량성 빈혈환자에서도 조혈모세포 이식 후에 VOD의 높은 발생률을 관찰하였으며, 대부분이 경증이었다. VOD 환자에서의 혈액응고 인자들의 변화는 PAL-1이 VOD의 감별 진단을 위하여 이용될 수 있음을 시사하고 있다. Background: There are few reports about the occurrence of hepatic veno-occlusive disease(VOD) after bone marrow transplantation (BMT) for severe aplastic anemia (SAA). We analyzed the incidence and clinical outcomes of VOD and changes of coagulation factors in patients with SAA who were conditioned with cyclophosphamide plus ATG and underwent allogeneic BMT. Methods: Thirteen patients with SAA who underwent allogeneic BMT were included. A diagnosis of VOD was made according to clinical criteria, and severity of VOD was classified according to clinical course. Plasma levels of protein C, protein S, antithrombin Ⅲ, t-PA, and PAI-1 were determined before preparative chemotherapy, in the day of marrow infusion, and days 7, 14, and 21. Results: VOD occurred in 7/13(53.8%). Five were mild VOD and two were moderate VOD. Time to platelet ≥20,000/L was slower (p=0.026) and red cell and platelet transfusion requirements were higher (p=0.025,0.015) in patients with VOD . The mean plasma level of PAI-1 at 0 were higher in patients with VOD (p=0.034). Conclusion: We observed the high incidence of VOD after allogeneic BMT in patients with SAA. A majority of cases of VOD were mild. The changes of PAI-1 after BMT may be useful marker of hepatic VOD

專門大學海洋土木科模型敎育課程 修正開發硏究

李東周,林秉龍,張仁奎,申文燮,金榮燮,朴昌圭,金康洙 군산대학교 1988 群山水産專門大學 硏究報告 Vol.22 No.1

This is a study to modify the curriculum of the ocean civil engineering department in junior college. We collected and analyzed data which are concerned on the curriculum development or improvement, the marine techniques and the ocean policy. And then we also gathered the opinions of the professors serving at the ocean civil engineering department by holding several conferences and investigated the opinions of the ocean civil engineers serving at the industrial organization by way of the inquring papers. In addition we collected the advices of educational specialists and ocean civil specialists by visiting personally. On the basis of above opinions we developed the jobs of graduates and made a model curriculum shown in Table 6. We tried to intensify the subjects of special basic field related to the ocean & civil engineering and the subjects of basic experiment & practise. The ocean observation practise was newly formed and the E. D. P.S was reinforced.

전해산성수를 이용한 새로운 내시경 소독 시스템(Cleantop WM-1??)의 소독효율

이준행,이풍렬,송재훈,이남용,임윤정,장재권,김영호,김재준,백승운,이종철,최규완 대한감염학회 2001 감염 Vol.33 No.2

Background : Electrolyzed acid water (EAW) is a new liquid chemical germicide containing a mixture of oxidizing species and prepared by mixing a small amount of salt with tap water in an electrolyzer. We attempted an in-use evaluation of the high-level disinfection capability of Cleantop WM-1□, a new endoscope reprocessing system using EAW. Methods : Forty-seven flexible endoscopes were randomly collected just after upper endoscopic examinations and were disinfected using Cleantop WM-1□. Parts of the endoscopes without contact to EAW were disinfected with 75% ethyl alcohol. Immediately after the disinfection procedure, samples were taken from the biopsy channel (S-1), tip of the insertion tube (S-2), the umbilical cord (S-3), and the angulation knob (S-4). Results : In EAW-disinfected parts of the endoscopes, the culture-positive rates were 4.3% (2/47) in S-1 samples and 12.8% (6/47) in S-2 samples. In ethyl alcohol-disinfected area, the culture-positive rates were 2.1% (1/47) in S-3 samples and 25.5% (12/47) in S-4 samples. The colony counts of culture-positive samples ranged from 1 to 144. Pseudomonas aerugi-nasa was recovered from the angulation knob of an endoscope, but other contaminating organisms were mostly : normal flora or opportunistic pathogens. Conclusion : Although part of the endoscopes disinfected with 75% ethyl alcohol were contaminated with more organisms than EAW-disinfected areas, Cleantop WM-1□ showed a relatively good disinfection efficacy in reprocessing patient-used endoscopes. (Korean J Infect Dis 33:133∼138, 2001)

지도 정보의 계층적 추출에 관한 연구

이상범,최영규 단국대학교 2000 論文集 Vol.35 No.-

In order to recognize map images automatically and make them in the form of Data Base, hierarchical classification and recognition of various information should be done. In this paper, a method with which map information can be efficiently extracted is proposed where map image is hierarchically classified by each component and those components are supplemented with the use of structural characteristics of each component. The proposed method extracts map information using mixed method among image structure analysis methods. First, character, block and road areas are classified hierarchically from the map image using bottom-up method, and by top-down method character and block areas are supplemented to be appropriate for recognition using structural characteristics of each component. For the evaluation of the algorithm, a map of 1:3,000 is used. It's been confirmed that each component can be efficiently extracted and extracted information make them in the form of Data Base have been confirmed recognition using neural network.

電子線으로 照射된 低密度 Polyethylene의 電氣電導度와 溫度特性

李宗珪,金永銓,金澤基 충남대학교 자연과학연구소 1984 忠南科學硏究誌 Vol.11 No.1

Conductivity in polyethylene has been investigated as the applied electric fields between 1.1×10 exp (4) and 2.5×10 exp (5)V/㎝ and temperature from 20℃ to 105℃. The comparative analysis of the theory with the experiment results were tried on the assumption that the current is composed of electrons injected into sample which contains space charge over the Schottky barrier. From the results a rough estimate was made of the density of traps in irradiated polyethylene and the activation energy, which could be calculated from the temperature dependence of electrical conductivities of polyethylene irradiated with 10^8rad electron beam, were obtained 0.28eV and 1.06eV.