서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)

김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2

Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.

경련성 환아 부모들의 인식에 대한 연구

이경화(Kyoung Hwa Lee),서은숙(Eun Sook Suh),김영창(Yong Chang Kim),김창휘(Chang Hwi Kim),이동환(Dong Whan Lee) 대한소아신경학회 1996 대한소아신경학회지 Vol.3 No.2

Convulsive disorder is the most part of the pediatric neurologic disease. As far as the treatment of convulsive disorder concerned, we must consider familys' understanding, and the close cooperation between the epileptic child, parents, and doctors. We compared to Kim's report in 1985, to study the change of parents of epileptic children thinking. A prospective study was undertaken the analysis of 100 epileptic children parents visited to the pediatric dept, of Soonchunhyang university hospital from May to July, 1995. Psychological assessment, questionnaires which contains 17 items were given them, and these items were compared to Kims report in 1985 The results were as follows: 1) Parents of epileptic children answered convulsive disorder has influenced to children growth and development( 60.8% in 1985, 65.0% in 1995 ). 2) For asking the causes of children disease, 40.5% of them in 1985 and 50.0% of them in 1995 answered to uncertain, but only 7.8% of them in 1985 and 7.0% of them in 1995 answered to relation with familial inheritance. 3) The feelings at time of the diagnosis were gloomy or uncomfortable: 52.3% in 1985, 38.0% in 1995 and shameful 28.1% in 1985, 9.0% 1995. parents had belived in the epilepsy was treatable disease: 41.0% in 1995. 4) According to the this survey, patients explained reasons why their children take the medication increased from 23.5% in 1985 to 65.0% in 1995. 5) Only family, knew that their children had the convulsive disorder about 50.3% in 1995 and 22.0% in 1995. Family, patients and other people except family knew that their children had the convulsive disorder about 6.5% in 1985 and 43.0% in 1995. 6) The parents opinion and expectation toward the medical doctors were that they wanted to get full explanation for the disease 81.0% in 1985 and 35.1% in 1995, and others were explantation about toxicity and side effects of the medication and advises for the childrens life and activities.

장관골에 발생한 거대세포 종양의 국소 재발에 관한 연구

김인,김정만,이승구,장한,김용식,김성수,한창환,김형관 가톨릭 중앙의료원 가톨릭 암센터 1991 가톨릭 암센터 論集 Vol.5 No.1

Improvement of Thermomechanical Fatigue Life in Nitrogen Alloyed 316 Stainless Steel

Kim, Dae Whan,Han, Chang Hee,Ryu, Woo Seog Trans Tech Publications, Ltd. 2005 Materials science forum Vol.475 No.-

<P>Fatigue tests of type 316 and 316LN stainless steel were conducted at RT and 600ı, 0.8~1.5% strain range for low cycle fatigue (LCF), 300~600ı, 0% strain range for thermal fatigue (TF) and 300~600ı, 2% strain range, in-phase or out-of-phase for thermomechanical fatigue (TMF). LCF, TF, and TMF lives were increased but saturation stresses were decreased with the addition of nitrogen. The higher temperature was the lower TF life at a same temperature change. The minimum temperature change for TF failure was more than 100ı. TMF life was higher at inphase condition than at out-of-phase condition. Fracture mode was transgranular for LCF and outof- phase of TMF and almost transgranular and small intergranular for TF and in-phase TMF.</P>

林土의 有機物의 分解速度와 無機養料의 垂直分布에 關한 考察

金遵敏,張楠基,鄭玩鎬 서울대학교 교육대학원 학술연구회 1966 論文集 - 서울대학교 교육대학원 Vol.3 No.-

Kim Choon Min, Chang Nam Kee and Chung Whan Ho: Decomposition rate of plant residue and the vertical distibution of mineral nutrients in the woodland soil. The relationship between decomposition rate of litter and the amount of mineral nutrients dispersed to the soil horizons were studied on the oak and pine forest stand. The results are as follows: 1. Decomposition rate of litter was highest in the F horizon of the oak stand, however in the pine stand it was highest in H horizon. 2. The correlation coefficients between decomposition rate and humus, organic carbon, moisture content, calcium, phosphorus, and nitrogen in the pine stand are; 0.90, 0.98, 0.76, 0.98, and 0.88, in oak stand; 0.97, 0.93, 0.92, 0.97, 0.74 and 0.73. 3. Factors which affect the decomposition rate of litter are humus, organic carbon, moisture content, calcium, phosphorus and nitrogen. 4. Among the variables, PH, moisture content and phosphorus under the oak and pine forest showed significant differences in each horizon. 5. C/N ratio of pine stands is higher than that of oak stands studied. 6. The vertical distribution of mineral nutrients is highly related with the amount of humus accumulated on top soil.

상완골 근위부 골절에서 클로버잎형 금속판을 이용한 치료

김진환,주석규,이창수,김동현 인제대학교 2006 仁濟醫學 Vol.27 No.-

Purpose : To evaluate the result of the clover-leaf plating for the treatment of the proximal humeral fracture. Materials and Methods : We performed open reduction and internal fixation with clover-leaf plate in 15 displaced proximal humeralfractures. The average follow-up period was 12months. We performed radiographic study to check bony union and applied Neer's score to evaluate shoulder function. Results : All 15 fractures consolidated at 5 months average. Shoulder function was classified as 7 excellent, 4 satisfactory and 4 unsatisfactory. There was no infection or avascular necrosis of humeral head. Impingement syndrome was detected in 2 patients. Conclusion : When we perform open reduction and internal fixation for proximal humeral fractures, clover-leaf plate can give us rigid fixation with its proximal multi-hole.

위장질환에 따른 H.pylori 감염빈도와 검사방법의 비교분석

김대현,조재현,금민수,최성곤,이창형,탁원형,권영오,김성국,최용환,정준모 慶北大學校 醫科大學 1997 慶北醫大誌 Vol.38 No.2

목적 : H. pylori가 위장관 질환의 병인에 깊은 관련이 있어 이의 적절한 진단 및 치료가 중요하게 대두되고 있다. 이에 저자들은 소화기 증상을 주소로 내원한 환자들을 대상으로 내시경 검사를 실시하여 H. pylori검출을 위한 CLO검사, IgG 항체검사 및 H&E 염색 등을 시행하여 각 질환별로 H. pylori 감염의 양성율을 알아보고 검사법에 따른 민감도 및 특이도를 그 유용성에 대하여 조사하였다. 대상 및 방법 : 1996 4월에서 8월까지 경북대학교병원에 소화기증상을 주소로 내원한 총 313명의 환자를 대상으로 내시경 검사를 실시하여 H. pylori 검출을 위한 CLO 검사, IgG 항체검사, 조직염색 검사를 실시하였다. 결과 : 전체 대상 환자수는 313명이었고 연령별 분포는 16세부터 80세 까지 다양하였으며 그중40대, 50대, 60대가 각각 69예(22%), 73예(23.3%), 65예(20.8%)로 전체 환자중 66%를 차지하였다. 남녀비는 2.07 대 1로 남자가 많았다. 대상환자의 평균나이는 52±15세였고, 전체 대상환자에서 H. pylori 양성군과 음성군의 평균나이는 각각 50±15세, 54±15세 였고, 궤양환자군에서 H. pylori 양성군과 음성군사이의 평균나이는 각각 49±14.8세, 55±13.8세로 나타났다. 각 질환별분포는 위염이 72명(23%), 십이지장 궤양이 85명(27.2%), 위궤양이 80명(25.6%), 위암이 20명(6.4%), 비궤양성 소화불량이 13명(4.2%), 기타가 43명(13.7%)이었으며, H. pylori 감염 양성율은 위염이 71%, 십이지장 궤양이 86.8%, 위궤양이 58.3%, 위암이 75%, 비궤양성 소화불량이 75%였으며 특히 유문륜 궤양에서는 100%의 양성율을 보였다. 소화성 궤양군과 비궤양군에서의 H. pylori 양성율을 비교해 본 결과 궤양군에서는 73.1%, 비궤양군에서는 72%로 통계학적으로 차이는 없었다(P=0.91). 소화성 궤양환자에서 출혈이 동반된 군과 동반되지 않은 군에서의 H. pylori 양성율을 비교해 본 결과 출혈이 동반된 군에서의 양성율은 54.5%였고, 출혈이 동반되지 않은 군에서는 77.5%의 양성율을 보여 출혈이동반되지 않은 군에서 통계학적으로 유의하게 높았다(P=0.014). 나이에 따른 양성율을 알아본 결과 50세 이하에서는 78.5%였고, 50세 이상에서는 67.5%로서 양성율이 낮았으나 통계학적으로 유의성은 없었다(P=0.052). 각 검사법에 따른 민감도 및 특이도는 전체 환자중에서는 CLO검사가 88.9%, 96.1%, IgG항체검사 90.8%, 58.5%, H&E 염색검사 86.9%, 79.2%로서 민감도는 비슷하게 나왔으나 CLO검사는 상대적으로 특이도가 다른 검사법에 비해 높았다. 궤양군에서의 CLO검사의 민감도와 특이도는 92.0%, 95.6%였고, 비궤양군에서의 민감도와 특이도는 84.3%, 96.8%로서 비궤양군에서는 CLO검사의 민감도는 약간 낮았다. 나이에 따른 CLO 검사의 민감도 및 특이도는 50세 이하에서는 91.5%, 93.1% 였고, 50세 이상에서는 86.3%, 97.9%로서 50세 이상에서는 상대적으로 CLO검사의 민감도가 낮았다. 결론 : 본 연구에서는 위장질환에 따른 H. pylori 양성율을 알아보았는데, 다른 보고에서 처럼 높게 나왔으며, 진단 방법으로 사용한 CLO검사, IgG항체 검사, 조직염색검사 등은 모두 비교적 높은 예민도를 나타냈고, 그중 CLO검사가 간편하고 경제적이라는 면에서 임상적으로 유용한 검사로 여겨지나 상대적으로 CLO검사의 민감도가 낮은 비궤양성 질환과 50세 이상의 환자군에서는 CLO검사 외에 다른 검사방법을 병행함으로써 H. pylori의 진단율을 높일 수 있을 것으로 사료된다. Background: Gastric colonization by Helicobacter. pylori is common among patients with peptic ulcer and gastritis. And various diagnostic tests are available in confirming H. pylori infection. The aim of this paper is to estimate the prevalence of H. pylori infection in Gastroduodenal disorders and compare the sensitivity and specificity of the most widely available tests. Methods: A total of 313 patients were tested for H. pylori infection by IgG Ab, CLO test and H&E stains. Results: The prevalence of H. pylori infection was significantly higher in duodenal ulcer(86.8%) than in gastric cancer(75%), gastritis(71%) and gastric ulcer(58.3%)(P=0.009). The sensitivity and specificity of each test was as follows: CLO test(88.9%, 96.1%), IgG Ab test(90.8%, 58.5%), H&E stain(86.9%, 79.2%). Sensitivity of CLO test in peptic group was 92.0%, whereas in non-peptic group, it was 86.3%. Sensitivity of CLO test in age under 50 was 91.5%, that over 50 it was 86.3%. Conculsions: There is a strong association between H. pylori and gastrointestinal disorders. CLO tests have relatively high sensitivity and specificity, especially in peptic group and younger age(below 50 yr)group. But in those patients in which CLO tests are less sensitive (age>50 or non-peptic group), more than one test may be necessary to diagnose the presence of the organism.

제7차 교유과정에 따른 중학교 과학 1 교과서(물질부분)의 비교 분석

김인환,신재호,김창만 대구대학교 기초과학연구소 2001 基礎科學硏究 Vol.18 No.2

The purpose of this study is to compare and analyze the new seven kinds of science textbook (material part) for the middle school first grade according to the seventh curriculum. In the analysis of the contents in the textbooks, there seem to be less Material part than the other parts. Also, though the number of experiments and researches vary depending on the textbooks, 'Energy' part doesn't get as much attention. Compared with old textbooks, the new textbooks have contents that require students to conduct experiments voluntarily rather than just to understand and accept concepts. In the analysis of the contents of Material part, it forms only 23.08%, which implies that it requires students activities and researches much more than the other contents. About the researches, basic research to thorough research is at the ratio of 4:1. besides, the number of students which means that a science class can not be conducted using textbooks and notebooks only. Romey method can be used to analyze the contents for the science syllabus and it suggests that Rm index in almost all the textbooks is over 0.4 but less than 1.5.

탄소/폴리이미드(C/PI) 복합방적사의 제조조건에 따른 특성변화

김규호,주창환,이승구 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.2

We have investigated the effects of manufacturing conditions on the morphological structure and physical properties of the carbon-core/polyimide-sheath(C/PI) composite yam manufactured by the DREF 2 friction spinning machine. The C/PI composite yam produced can be applied to the various fields of requiring high strength and high heat resistance, such as gloves, bullet-proof jackets and so on. The results obtained in this study are as follows; Breaking stress and initial modulus of the C/PI composite yams have increasing trends, and breaking strain has decreasing trend with the increase of heating temperature and time. The cohesion of drawn sliver in higher than that of carded sliver, the PC/PI composite yams show the trend that the breaking stress and initial modulus are similar to C/PI composite yams. Moreover, as twist level increases, breakage occurs on the core(carbon filament) and th breaking stress significantly decreases. Peeling strength of PC/PIF composite yams increases, as the bonding force of PET, filament increases with increasing the heating time. Slippage resistance on the sheath of C/PI composite yam increases with increasing heating temperature and time, and surface and cross-section structure of C/PI composite yams have increasing cohesion with the increase of heating temperature and time

HASA 교육과정 기반의 과학캠프 프로그램 개발과 개발 과정 분석

김창만,김인환,차정호,황북기,최정훈 大邱大學校 師範大學 附設 敎育硏究所 2009 學校敎育硏究 Vol.5 No.1

본 연구에서는 학교 밖 탐구활동의 실태 분석 결과와 수공적 기능이 강조된 HASA 교육과정 기준안에 근거하여 체험 중심 과학캠프 프로그램의 개발 내용과 과정을 분석하였다. 과학캠프 프로그램을 개발하고 적용하는 과정에 대해서는 개발자들과 운영자들이 기획한 자료와 면담 내용을 바탕으로 개발과정에서의 문제점과 개선방안을 분석하였다. 분석한 캠프 프로그램은 개발진이 설정한 개발 방향과 수업 모형을 토대로 과학 강연, 과학 체험학습, 과학 경연, 탐구주제 토론으로 구성되었다. 이 프로그램들은 HASA 교육과정에서 강조하는 수공적 기능, 탐구, 지식, 태도를 모두 포함하였다. 프로그램의 개발 과정에 대한 분석한 결과, 개발 기관의 인적 물적 인프라는 부족함이 없었으나, 프로그램 개발자 중 과학교육학 전공자가 부족하다는 점과 참가 대상 및 비용 측면에서 문제점이 지적되었다. In this study, practice-centered science camp programs developed based on the HASA science curriculum standard and its developmental processes were analyzed. For this purpose, materials related with development of programs and interview protocols were overviewed, and the shortcomings and revision points of the science camp were introduced. The camp programs included science lecture, science experiment, science contest, and inquiry topic discussion. These were based on manipulative skill, inquiry, knowledge, and attitude which were emphasized in HASA curriculum. As a results of analysis, we found that the institutions had enough infrastructures. However, there was no expert in science education, and had some problems in participant's school grade level and participation fee.