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Headed Reinforcement를 사용한 철근콘크리트 깊은 보의 전단거동
강경훈,이우진,김수봉,서수연,윤승조,김성수 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(구조계)
Generally, headed reinforcement offers several advantages over straight bar or hooked bar anchorages to develop reinforcement in concrete members. The purpose of this study is to investigate the shear behaviors of reinforced concrete deep beam with headed reinforcement. Five deep beam specimens are designed to study the anchorage capacity of headed reinforcement as well as the contribution of H-bar and V-bar to the shear. Two anchorage types, standard 90-degree anchorage and headed reinforcement, are considered in design. From the tests, it is shown that In the test results, headed reinforcement is able to replace standard 90-degree anchorage as the anchorage method. The evaluation on the contribution of H-bar and V-bar in current design code for deep beam shows that the former is overestimated 75% and the latter is overestimated 17%.
하태선,이태수,차은종,박범수,한헌석,채수일 충북대학교 의과대학 충북대학교 의학연구소 1993 忠北醫大學術誌 Vol.3 No.1
본원 소아과 입원환자의 퇴원요약 기록을 전산관리하는 시스템을 개발하였다. 소아과 환자관리에 적합하도록 퇴원요약지를 설계하였고 개인용 컴퓨터를 사용하여 관리하도록 구성하였다. 주 기억장치 4MB와 보조기억 장치 120MB HDD을 장착한 PC-386DX 시스템을 기반으로 개발하였고 소프트웨어로는 FoxPro v2.0을 사용하였다. pull-down menu 방식과 window방식을 적용하여 비전문가라 할지라도 손쉽게 사용할수 있도록 하였고 정보입력 및 수정시 사용자 편의를 최대한 반영하고자 하였다. "AND"와 "OR"연산자를 사용하여 다양한 검색이 가능하였다. 본 시스템은 현재 본원 소아과에서 실무에 적용하고 있으며 향후 통계분석과 임상연구에 크게 활용할 수 있으리라 생각된다. A PC-based system was developded to manage discharge summary records of pediatric patients. It is based on a PC-386DX system equipped with 4MB memory and 120MB HDD, and its software was written in FOXPRO V2.0. Any users unfamiliar with computer can make an easy access to the data through pull-down menu and windows system. Logical operators of "AND" and/or "OR" enabled a flexible and various search conditions. The present system is being under clinical use in the Department of Pediatrics, and warrants future applications to statistical analysis as well as clinical research projects.
김헌수 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.3
연구목적 : 본 연구의 목적은 청소년 비행·범죄행동을 사전에 예측, 파악할 수 있는 판별요인을 분석함으로써 비행·범죄행동의 가능성이 있는 청소년을 조기에 선별·중재하기 위함이다. 연구방법 : 본 연구는 설문지법과 면담을 통한 조사연구로서 연구자가 직접 전국의 학교, 소년원, 분류 심사원을 방문하여 비행청소년의 소년원, 분류심사원의 재소기록과 학생청소년의 학교생활기록부를 참조하여 조사하였다. 본 연구에서 사용한 설문지 구성은 국내외의 관련자료수집과 문헌고찰을 토대로 본 연구자가 제작한 정신건강실태조사 설문서 중 본 연구의 연구문제에 해당하는 문항을 발췌하여 적용하였다. 본 연구의 표집대상은 비례층화 표본추출법을 이용하여 서울과 지방의 12개 중학교와 12개 고등학교에 재학중인 학생청소년 1,254명과 6개 소년원, 2개 분류심사원에 재원중인 비행청소년 1,121명을 연구대상 집단으로 선정하였다. 수집된 자료처리는 불충분한 자료는 제거한 후 SAS프로그램을 이용하여 분석하였다. 자료분석에 이용된 통계방법은 χ²검정, t 검정 및 로지스틱 회귀분석법 등이다. 연구결과 : 본 연구의 조사결과는 다음과 같다. 1) 비행청소년들은 학생청소년들 보다 성적확대(t=17.8, p=0.0001)와 가정폭력(t=14.2, p=0.0001)에 더 많이 노출되었다. 2) 비행청소년들이 학생청소년들 보다 흡연(χ²=1,338.36, df=1, p=0.0001), 음주(χ²=976.91, df=1, p=0.0001) 및 약물사용(χ²=396.52, df=1, p=0.001)빈도가 더 높았다. 3) 비행청소년과 학생청소년을 판별해주는 판별요인으로는 흡연(odds ratio : 32.32)이 가장 높게 나타났으며, 다음으로는 음주(odds ratio : 10.38), 약물사용(odds ratio : 2.95), 폭력물 시청시간(odds ratio : 1.78)등의 순으로 나왔다. 결 론 : 본 연구 결과 흡연이 가장 강한 비행청소년 판별요인임을 알 수 있었다. 즉 흡연청소년은 비흡연청소년보다 비행·범죄행동빈도가 보다 높았다. 그러나 이러한 흡연과 비행간의 상관관계에는 다른 많은 변수가 개입되어 있을 것으로 추론되며, 따라서 비행청소년 개인의 심리적, 가정환경적 및 사회문화적 상황요인에 대한 고려 또한 신중히 검토되어야 한다. Objective : The present study was intended to analyse discriminative factors between student adolescents and delinquent adolescents in Korea, and to develop therapeutic and preventive strategies for preventing juvenile delinquent behavior. Methods : The research design of this study was a questionnaire survey with individual interviews and reference of the record materials of the school and corrective institutions. Subjects served for this study consisted of 2,375 adolescents(1,254 student adolescents and 1,121 delinquent adolescents) in Korea, sampled from Korean student population and adolescent delinquent population confined in 6 juvenile corrective institutions and 2 classification judging institutions, using the proportional stratified random sampling method. Their age range was between 12 and 21. The actual number of cases put into the analyses was 2,167 including 1,196 student adolescents and 971 delinquent adolescent. Data were analysed by the SAS program. Statistical method employed were Chi-square, t-test, and logistic regression analysis etc. Results : The discriminative factors between student adolescents and delinquent adolescents were smoking, alcohol use, drug use, viewing time of media violence such as murder and violence scenes on TV etc, sexual abuse and viewing time of pornography. Among these discriminative factors, the strongest factor was smoking. Delinquent adolescents showed a higher rate of smoking than students adolescents. That is, smoking adolescents showed 32.32 of odds ratio comparing with the non-smoking adolescents group. The other discriminative factors were alcohol use(10.38 of odds ratio), drug use(2,95 of odds ratio), viewing time of violent media(1,78 of odds ratio), sexual abuse(1.68 of odds ratio) and viewing time of pornography(1.25 of odds ratio). Conclusion : In conclusion, it was found that smoking served as the strongest discriminative factor between student adolescents and delinquent adolescents. That is, smoking adolescents showed a higher frequency of delinquent behavior than non-smoking adolescents. However, the author recommended that a strong, reliable correlation between smoking and juvenile crime is probably not a simple causal one. Rather, a complex relationship between smoking and juvenile criminal behavior results from the probable effects of multiple interactive physiological, psychological, environmental, situational, social and cultural factors.
고전압 응용을 위한 4H-SiC Schottky Barrier Diode의 제작 및 특성
금병훈,강수창,박종대,신무환 명지대학교 대학원 1998 대학원논문집 Vol.2 No.-
This paper discusses about the processing and characterization of the high breakdown voltage 4H-SiC Schottky Barrier Diode. Two types of the devices were fabricated one was fabricated using the passivation layer and the other was fabricated without the passivation. In case of the device with passivation layer, breakdown voltages were in the range 120 V to 300 V, which is quite higher compare to the devices fabaricated from Si or GaAs. However, this value is lower than the theoretically predicted value. The reverse leakage current of the devices was quite low which is less than 10^7 Amp at the reverse bias voltage of 220 V.
은헌정,권태완,이선미,김태형,최말례,조수진 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.3
Objectives : The present study was conducted to explore the reliability and validity of the "Impact of Event Scale-RevisedKorean version" (IES-R-K). Methods : The subjects were college students who visited a college counseling center and patients who were admitted to a general hospital and two orthopedic local clinics.Those subjects who experienced catastrophic traumatic events were tested for CAPS, BDI, STAI-I, II, and MMPI-PTSD scale. Results : The range of correlations between item-total were .45 -.89. The coefficients of internal consistency were .69 -.83, of them were the Split-half reliability was .71 and the test-retest reliability was .89, all within expected ranges. Inter-corre-lations of IES-R-K, CAPS, BDI, STAI-I, II, and MMPI-PTSD scale were high. CAPS showed the highest correlation Coef-ficient. Factor analysis indicated 4 factors in IES-R ; avoidance, hyperarousal, intrusion, and sleep problem & numbness. IES-R-K can be a useful self-rating diagnostic instrument for PTSD symptoms to be a clinical concern by using 24/25 cutoff in total score. The partial PTSD cutoff score is 17/18. Conclusion : The IES-R-K was confirmed in it's reliability and validity. IES-R-K could be applied for screening of PTSD.
인간대상연구에 있어서 기관생명윤리위원회의 역할에 관한 한국과 미국의 규제법 비교
박수헌 이화여자대학교 생명의료법연구소 2013 생명윤리정책연구 Vol.7 No.1
Bioethics and Safety Act and Common Rule have some provisions that are both similar and different aspects on the scope of human subjects research, waiver of IRB review, informed consent form, oral consent, waiver of consent, waiver of written consent, required elements for informed consent, authority of IRB, types of IRB review, membership, operation and function, evaluation and certification system, relatioship between institute and IRB, etc. Also, both law and regulation have big difference in that Bioethics and Safety Act applies to all the human subjects research regardless of who pay the research money and Common Rule only applies to the federal government funded research. Nevertheless, both law and regulation have the same goal in that they try to protect the rights·safety·welfare of human research subjects through IRB. In order to protect both human research subjects and investigators at the same time based on this same goal and by the adequate and proper review of the varying protoctols in the future, I suggest some solutions to establish and manage IRB successfully such as the need to understand the goal of IRB, the recognition of independence of IRB from the head of the institute, the need to retain qualified members and to educate them, the administrative and financial support for assisting IRB affairs, to provide sufficient incentives and protections to the members, to establish the proper standards for selecting chair person and members etc.
흡입물질이 흰쥐 Lactate Dehydrogenase와 Cholinesterase 활성변화에 미치는 영향
윤수홍,박병윤,하헌,박은주 한국환경독성학회 1995 환경독성보건학회지 Vol.10 No.1
The effects of volatile substances inhalation on lactate dehydrogenase and cholinesterase in rats were investigated. Male Sprague-Dawley rats were exposed to marketed odorant, ethyl acetate and ethyl ether for 15 days. Enzyme activities were measured in serum and several tissues such as liver, lung, brain, heart, kidney and muscle to find differences of effects according to the organ. Cholinesterase activity in serum and most of tissues revealed time-dependent decrease in the case of marketed odorant inhalation. Especially in heart and kidney significant decrease was observed. Ethyl acetate exposure to rats revealed also decrease in serum and all tissues by 40% to 60%. Ethyl ether inhalation showed significant decrease by 30% to 50°,%. Lactate dehydrogenase activity was markedly increased in serum and similarly in heart, brain and kidney by exposure to marketed odorant. No changes were observed in liver. Ethyl acetate exposure to rats revealed increase in serum by about 200%, compared to normal group and in other tissues by 40% to 70% except in liver and muscle. Ethyl ether inhalation showed significant increase in serum by about 100%. There was no change in liver and slight increase in muscle.
장성수,이헌남 漢陽大學校 學生生活硏究所 1992 大學生活硏究 Vol.10 No.-
This study supposed that motivation of helping would be different according to social and cultural background, that is, egoism or altruism. Based on difference of helping motivation, it was proposed that content of egoistic helping was fairness and content of altruistic helping was fraternity in which were social values. The nature of helping behavior were classified in term of these two different social values. Therefore, the previous results of helping research reilluminated based on conceptual framework proposed in this study. Also, it was understood previous findings of helping study conducted in different concern in terms of one meaningful framework. According discussion in this study, the limitations of previous helping research were discussed and were proposed further research.