첫 삽화 정신분열병의 전구증상과 치료 전 경로 : 한국과 중국 연변간의 횡 문화 예비연구 Preliminary transcultural Study between Korea and China

정영철,박태원,유일한,현길용 대한정신분열병학회 2003 정신분열병 클리닉 Vol.6 No.2

전자선 증착장치 및 ITO 박막의 제작과 그 특성에 관한 연구

김수길,최범식,우정주,고년규,황정남,정원모,이철주 연세대학교 자연과학연구소 1982 學術論文集 Vol.9 No.-

태양 전지의 제작시 투명 전극막으로 쓰이는 ITO 박막을 제조하기 위하여 cathode 접지 방식의 전자총을 가진 정전 편향 집속형의 전자선 증착 장치를 제작하였다. 가속전압이 0∼15kV, 필라멘트 전류가 0∼28A, 두 전극판 사이의 간격이 11mm, anode와 deflector 사이의 간격이 30mm인 최적 실험조건하에서 생성된 전자선 spot의 크기는 길이가 20mm 폭이 1mm였으며, 전자선의 출력은 약 400W였다. 이 전자선 증착 장치를 이용하여 1600℃까지의 증발 온도를 가진 도체와 절연체 등을 쉽게 증착시킬 수 있었으며, 만드어진 ITO 박막은 약 5000Å의 두께에서 10^-1∼10^-2Ω·㎝의 비저항과 95%의 광투과율을 갖는다. An electron beam evaporator with a cathode grounded type electron gun was designed and constructed in order to deposit ITO thin films for photovoltaic applications. The optimum condition was observed with electode spacing of 11mm, 30mm between anode and deflector, a cathode inner diameter of 3mm and an anode inner diameter of 5mm. As the accelerating voltage varies from 0 to 15kV and ghe filament current from 0 to 28 A, the minimum electron beam spot has a 20mm length, and 1mm width and the output power ranges from 0 to 400W under the above optimum conditions. We can deposit materials whose evaporation temperature is over 1600℃ using this evaporator. And as a result ITO thin film showed a low resistivity of 10^-1∼10^-2Ω·㎝ and the transmittance of 95%.

의과대학생과 일반대학생의 삶의 질 비교

민성길,신원철,김광일,정지인,김동기 대한신경정신의학회 2000 신경정신의학 Vol.39 No.6

연구목적 : 미래에 환자들의 신체적, 정신적 건강을 책임지게 될 의과 대학생 집단이 의학을 공부하는 과정에서 어떤 신체적, 정신적 및 사회적 문제들에 의해 고통받는지 알아보고 이의 개선방향을 발견하기 위해, 의과대학생들이 느끼고 있는 삶의 질에 대한 연구를 실시하였다. 방 법 : 1999년도에 연세대학교 의과 대학에 재학중인 본과 학생 317명과, 연세대학교 재학중인 일반 대학 150명을 대상으로 설문조사를 하였다. 조사도구는 세계보건기구 삶의 질 간편형 척도(WHOQOL-BREF)였다. 의과대학생과 일반대학생의 삶의 질을 각 항목(item)별, 영역(domain)별, 그리고 총점의 평균값을 비교하여, T-test로 검정하였고, 각 영역의 기여도를 다중회귀 분석으로 평가하였다. 결 과 : 전체점수에서는 차이를 보이지 않았다. 그러나 항목별점수에서는, 수면과 휴식, 성적 활동, 레저와 여가활동에 대한 참여와 기회에서는 의과대학생의 삶의 질이 유의하게 낮게 보고되었으며, 약물과 치료에 대한 의존도, 경제적 자원, 새로운 정보와 기술을 얻을수 있는 기회, 교통수단에서는 의과대학생의 삶의질이 유의하게 높게 보고되었다. 영역점수에서는, 사회적 관계 영역에서 의과대학생의 삶의 질이 낮게, 환경 영역에서는 높게 보고되었다. 그리고 의대생에서 신체적 건강, 환경, 그리고 사회적 관계 영역들이 삶의 질에 크게 기여하였고, 반면 일반대생에서는 심리적 영역과 환경 영역이 크게 기여하였다. 결 론 : 이와 같은 결과는 주로 의대생들의 사회적 관계 영역, 그리고 기타 하부척도에서는 수면과 휴식, 성적활동, 레저와 여가 활동에 대한 참여와 기회 등의 항목에서 삶의 질을 높이는 것이 필요하다는 것을 시사한다. Objectives : The quality of life of medical students was investigated and compared with that of general college students to identify what kind of problems medical students are suffering from. Method : Korean version of WHOQOL-BREF was administered to 317 medical students and 150 general college students of Yonsei University in 1999. Collected data were analyzed with t-test and multiple regression analysis Results: There was no significant difference in the total scores of WHOQOL-BREF between medical students and general college students. However, the scores of facets of sleep and rest, sexual activity, and participation and opportunities for recreation/leisure were significantly lower in medical students than in general colleges for recreation/leisure were significantly lower in medical students than in general college students, while the scores of facets of dependency on medication and treatment, financial resources, opportunities for acquiring new information and skills, and transport were significantly higher in medical students than in general college students. The score of social relationships domain was significantly lower in medical students than in general college students, while, the score of environmental domain was significantly higher in medical students than in general college students. Physical, environmental and social relationships domains contributed more to the quality of life of medical students than psychological domain while psychological and environmental domains contributed more to the quality of life of general college students than physical and social relationships domains. Conclusion : The result suggests that it is necessary to improve the quality of life of medical students in social relationships domain and in the facets of sleep and rest, sexual activity, participation and opportunities for recreation/leisure.

용혈성 요독 증후군이 합병된 출혈성 장염 1예

김능수,이원길,김기연,이종명,윤종수,김성한,전정훈 대한감염학회 1997 감염 Vol.29 No.3

저자들은 쇠고기에 의해 매개된 것으로 추정되는 출혈성 장염 및 이에 합병된 용혈성 요독 증후군 환자 1예를 경험하였기에 문헌고찰과 함께 보고하는 바이다. We report case of hemolytic uremic syndrome(HUS) associated with hemorrhagic colitis. A 35-year0old man was admitted to a local hospital because of abdominal pain and watery diarrhea which had developed about 6 hours after taking roast beef. He was treated with intravenous fluids and antibiotics, but watery diarrhea changed to bloody in nature from the next day. He was transferred to our hospital due to progressive ascites and jaundice on his 8th day of illness. Examinations revealed ascites, jaundice, microangiopathic hemolytic anemia, thrombocytopenia and uremia. Sorbitol-negative Escherichia coli was isolated from his stool, which proved as Shiga-like toxin-negative E. coli, serotype O25. His conditions improved markedly after three times of plasmapheresis and intravenous fluids therapy, and the organism was not isolated from the follow-up stool culture.

非晶質 Silicon 薄膜의 製作 및 그 Doping 效果

최범식,김수길,고년규,황정남,정원모,이철주 연세대학교 자연과학연구소 1982 學術論文集 Vol.9 No.-

SiH_4 기체에 PH_3 및 B_2H_6 기체를 0.7% 체적비로 혼합하여 rf glow 방전법으로 n형 및 p형 a-Si:H 박막을 기판온도 120℃에서 제작하여, 광투과도 측정, 열처리에 따른 전기 전도도의 변화 등을 조사하여 이들의 doping 효과를 연구하였다. n형, p형 및 undoped a-Si:H 박막의 optical gap은 각각 1.73eV, 1.86eV 및 1.86eV로 doping이 많이 이루어질수록 줄어 들었다. 250℃에서 열처리한 시료들의 상온에서의 전도도는 각각 2×10^-2Ω^-1㎝^-1, 5×10^-8Ω^-1㎝^-1, 5×10^-7Ω^-1㎝^-1이었고, 활성화 에너지 ??E는 각각 0.16eV, 0.49eV 및 0.48eV이었다. 300℃에서 열처리한 결과, ??E는 줄어 들고 전도도는 증가하였다. 350℃ 및 450℃에서 열처리한 결과 dehydrogenation 효과로 인하여 n형과 p형은 서로 상반되는 결과를 보였다. 즉, n형 시료의 전도도는 감소하고 ??E는 증가하였지만, P형 시료의 전도도는 증가하고 ??E는 감소하였다. 저온 영역에서 구한 n형 시료의 전도도로부터 hopping 활성화 에너지를 구한 결과 0.085eV이었다. Thin n-type and p-type a-Si:H films were prepared by rf glow discharge decomposition of silane mixed with 7×10^-3 parts per volume of phospine or diborane. All specimens were deposited on glass substrates held at 120℃. In order to determine the doping effects the opital absorption and dc conductivity of these specimens were measured after annealing at various temperatures. The optical gap was 1.73eV in the case of the n-type specimens, 1.80eV for the p-type, and 1.86eV undoped. This showed that the gap width decreased as the doping increased. The room temperatuer conductivities of these specimens annealed at 250℃ were 2×10^-2Ω^-1㎝^-1, 5×10^-8Ω^-1㎝^-1, and 5×10^-7Ω^-1㎝^-1, respectively, and the activation energies, ??E, of these specimens were 0.16eV, 0.49eV, and 0.48eV, respectively. For specimens annealed at 300℃, ??E decreased and the conductivity increased. When these specimens were annealed at 350℃ and 450℃, dehydrogenation caused opposite effects on the n-type and p-type specimens; the conductivities of n-type specimens decreased and ??E increased, but the conductivities of p-type specimens increased and ??E decreased.From an investigation of the temperature dependence of the conductivity of the n-type specimen in the low temperature region, we determined that the hopping activation energy was 0.085eV.

강원지역의 자원관리를 위한 지리정보시스템 개발

서백수,임길재,정영준,송화선,류창희,민경원,서희정 강원대학교 석재복합신소재제품연구센터 1997 석재연 논문집 Vol.2 No.-

강원도는 오랫동안 금속, 비금속, 석재 및 석탄과 같은 지하자원들을 공급하는 국내 주요생산지로 알려져 왔으나, 장기적인 채광과 비 계획적인 생산으로 인하여 매장량이 고갈되고 있으며, 대외적으로 생산 경쟁력 마저 잃어가고 있다. 이러한 문제점에 대한 해결방안의 일환으로 본 연구에서는 강원도내에 산재되어 있는 지하자원의 분포, 자원 생산시설 및 생산량, 경제성, 자원개발, 환경문제 등 자원관리에 필요한 제반사항을 수행할 수 있는 강원지역 자원 종합관리 GIS 시스템을 개발하였다. 이 시스템의 개발은 방대한 양의 정보 조사 및 저장, 오랜 개발기간, 많은 소요인력 및 개발 비용이 요구되기 때문에 본 연구에서는 조기에 자원관리 GIS 시스템을 개발하여 이와 관련된 생산 및 연구 분야에 조기에 적용할 수 있도록, 일차년도에는 현재 석재복합 신소재제품 연구센터의 집중적 연구대상 지역인 태백지역에 대한 탄광지역을 중심으로 자원 종합관리 GIS 시스템을 개발하였다. The Kangwon province has been well-known to be one of major underground resource producing districts which are mainly supplying metals, non-metals, stones, and coals. However, due to the long-term mining and unplanned production, the natural resource reserves have been rapidly drained and oversea production competition has been losing. In this study, we has developed a GIS system for regional resource management in the Kangwon province, which can operate, maintain, and manage the distribution of underground resources, resource production facilities, production and economic development, and environmental issues. The development of this system requires the collection, analysis, evaluation, and storage for a huge amount of research data, and in addition, the long period of time, the big research man power, and big development cost. Accordingly, to shorten the development period of time and to early apply itself to production, this stage of study has been intensively developed a regional resource GIS system for managing the mines scattered in the Tabak province, which is one of hottest RRC's research areas.

Head-Space SPME에 의한 생체시료 중 메스암페타민류 분석(Ⅱ)

최화경,양원경,한은영,최상길,정희선 內務部 國立科學搜査硏究所 2001 國立 科學 搜査 硏究所 年報 Vol.33 No.-

산국 (Chrysanthemum boreale) 휘발성 추출액의 항균 및 항진균활성

차정단,김태영,우원홍,정규용,김강주,길봉섭 원광대학교 생체재료·매식연구소 1999 원광생체재료·매식 Vol.8 No.1

To investigate the antimicrobial and antifungal activity of Chrysanthemum boreale(C. boreale) essential oil, the growth inhibition against Aspergillus nidulans, Fusarium oxysporum, Alternaria mali, Staphylococcus aureus, Streotococcus pyogenes, Streptococcus mutans and Escherichia coli in the presence of the essental oil was monitored by agar dilution method. The antifungal effect of C. boreale on Aspergillus nidulans, Fusarium oxysporum and Alternaria mali as affected at the concentration of 400 ppm. The antibacterial effect of C. boreale on staphylococcus aureus, streptococcus pyogenes and Streptococcus mutans was affected at the concentration of 0.4 μl, while growth of E. coli was not inhibited at the concentration of essential oil. The results of this experiment on microorganisms indicated that naturally occuring chemical substances from C. boreale might have biologically toxic activities, that is, allelopathic potentials to the microorganisms.

난원공 개존을 통한 우심방에서 좌심방으로의 단락 진단에 있어 경흉부 심초음파 하모닉 영상의 유용성

신미승,강석민,장길진,변기현,하종원,정남식,허지회,이병인 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.4

住民의 價値觀과 政策受容度에 關한 硏究

金秉燦,金學守,李相魯,鄭正佶,金元主 경북대학교 교육대학원 1973 논문집 Vol.4 No.-

1. Introduction Governmental policies should receive strong support from the general public to be effectively implemented. Therefore to find some clue as to how public policies might receive nation-wide support is very important. As the research objective was to find some factors which effect degree of policy acceptability, we interviewed 1,179 persons(633 citizens of Tae-gu city and 546 persons from rural communities in Kyung-puk Province) from July 10 to August 20, 1973, by stratified sampling. Stratifying criteria were sex, age, financial assets and educational background. X^2 was used as a tool to test the hypotheses that there may be differences in values and degree of policy acceptance among persons of different strata and that there may be differences in degree of policy acceptance among persons who have different values. 2. General Tendency Forty percent of those interviewed choose the item "None" among the choices to the following question; Question; Which one do you choose, if you can choose only one of three? Answer; 1) Money or wealth 2) Power 3) Honour 4) None Let us call the persons who choose 1) "Money-oriented" and so "Power-oriented", "Honour-oriented". More persons interviewed preferred a self-restraining life to a hedonistic life, and egoistic, to altruistic. Egoists here means the persons who choose item 1, 2, 3, and altruists, 4 and 5 in the following question; Question; For whom do you think you live? Answer; 1) My-self 2) Children 3) Ancestor 4) Community 5) Nation or country More persons believed that the moral order of a society is more important than economic affluence. Almost seventy percent of the interviewed preferred that public policies be formulated for a better future life for the people than for immediate present well-being. Economic policies including those for increasing national income and increasing export were believed to be goood and effective in their implementation. However, taxes were regarded as too heavy. This shows that people rely much on the government for economic development on the one hand, but do not recognize their responsibilities to support those governmental efforts through taxes on the other. The Sae-Ma-Ul movement received as strong support as the economic policies and city development policies received sufficient support. But educational policies such as school expenses and ethics and moral education were denounced, as were the public health policies. 3. Differences among Strata ⑴ Region: people of rural communities regarded power and honour with more value than their urban counterparts, while urban people were more money-oriented. Rural people accepted tax policies more readily than did urban people, but they denounced the public health policies and educational policies mentioned above more severely than urban people. ⑵ Sex: men were more power and honour-oriented than women. Men preferred the moral order of scociety more than women, while women preferred economic affluence more than men. Export increasing policies, public health policies and school expense policies were accepted more readily by women. However, city development policies were accepted more readily by men. ⑶ Education: the more educated persons were more honour-oriented, emphasized the moral order of society and the better future life of the people more strongly than less educated persons. All these reflect the effects of moral education. However, from non-educated persons to high school graduates, the more educated the more money and power-oriented they were, while college graduates were far less money and power-oriented than middle or high school graduates. This points out the good effects of college education and some problems of middle and high school moral and ethics education. The more educated regarded the present compulsory educational system as more effective and school expences less expensive than the less educated. However, college graduate gave less support to the new school entrance system, while they gave the highest support to the Sae-Ma-Ul movement. ⑷ Age: the older persons emphasized the moral order of society more frequently and showed more political apathy than younger persons. They also accepted the public health policies more readily than the younger people. ⑸ Assets: the richer persons were more honour-oriented and regarded school expenses as less expensive than the poor persons. 4. Correlation between Values and Policy Acceptance ⑴ Money-oriented persons(who choose Money among given items of Money, Power, Honour and None) were much more egoistic (mentioned above in General Tendency) than the honour-oriented persons. ⑵ Honour-oriented persons accepted more readily than the money-oriented persons policies for increasing national income, reestablishing law, moral order and a better atmosphere of a society and the Sae-Ma-Ul movement (three of five policies analized in detail to test our hyphotheses about correlation between people's values and the degree of policy acceptance). Altruists supported policies for increasing national income and city development policies more strongly than the egoists. Therefore we assume that honour-oriented persons or altruists accept the public policies more readily than money-oriented persons or egoists.