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權俊五,朴鍾天 조선대학교 환경연구소 1989 環境公害硏究 Vol.6 No.-
The envrionmental problems of urban lif eare rising as the most important things in modern rapid urbanization and the developing type of high industrial society oriented. This study, making Kwangju-city an object, investigated the actual condition of the present urban life environmental factors and provided its reform measures In addition, this study aims to consider the environmental impact assessment system to have a new understanding of urban environment. This study approached centering around four factors of urban life environment, safety, Health, efficiency, and amenity, which are widely used in the objective point of view, and provided their practical measures of environmental impact assessment. It can be said that safety is the first periority because it is a minimum condition by which people desire in urban life. The guide of safety assessment can be devided into the side of facilities, such as a police station, a firehouse, a security light, traffic facilities, and so on, and the side of calamities, such as a traffic accident, crime, fire, and demage caused by storm and flood. In terms of the overall Component ratio of population safety of Kwangju city is relatively good, in the side of facilities, however, it is appeared to be insufficient. Health is a factor required after security of safty in urban life. Here, the actual states of water supply, sewage facilies, a remove of garbage of dung, a pollution, and the health and medical facilities are investigated. As a result, health of Kwangju-city is significantly inferior, especially in the water supply, sewage facilies, a pollution, and the health and welfare facilities. It can be said that efficiency is the biggest characteristic as the most powerful factor making population flow into urban. Here, the guides for facilities relation to road, the public facilities, a distribution system, a communication system, a public traffic means, and the degree of finanical independence are searched. It is appeared that Kwangju-city is insufficient in the whole sides of efficiency. Amenity as one leading more cultural and comfortable life the after the aforementioned factors are ready is one of urban characteristics with efficiency. Here, the guides lastly required are housing equipments, educational systems, park facilities, cultural and sport facilities, organic facilities, and service facilities. Kwangju-city is significanly good in cultural, sport, and organic facilities, but is behind in housing facilities, comparing with the national level and is insufficient in park facilities. Also, the practical measures of environmental impact assessment are considered, as dividing to the assessment object program and its types, the assessment process and its preparation, and the method of assessment respectly.
권정현,최병재,이제호,김성오,손흥규,최형준 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.2
치아 맹출은 나이, 성별, 인종, 시대에 따라 시기 및 순서의 차이가 있으나, 교과서에 인용되어 임상에서 사용되는 영구치 맹출 및 치근 형성에 대한 자료는 1933년 Logan과 Kronfeld가 발표한 것이므로 현재 한국 어린이의 영구치 맹출 경향과 차이가 있을 수 있다. 따라서 이번 연구의 목적은 한국 어린이의 영구치 맹출연령을 구하고, 이를 근거로 맹출순서를 알아보며, 이전 국내외 연구자료와 비교하여 차이를 알아보는 것이다. 이에 1998년부터 2005년까지 연세대학교 치과대학병원 소아치과에 내원하여 구강검진을 시행한 E-초등학교의 어린이 중 만 6세에서 만 12세의 2,619명 (남자 1,307명, 여자 1,312명)의 자료를 수집하여 영구치의 맹출시기 및 순서에 대해 연구 한 바 다음과 같은 결론을 얻었다. 1. 상악의 영구치 맹출시기는 중절치는 남자 만 6.81세, 여자 만 6.73세, 측절치는 남자 만7.78세, 여자 만7.65세, 견치는 남자 만10.48세, 여자 만9.92세, 제1소구치는 남자 만9.76세, 여자 만9.63세, 제2소구치는 남자 만10.66세, 여자 만10.49세, 제1대구치는 남자 만6.39세, 여자 만6.26세, 제2대구치는 남자 만12.13세, 여자 만 12.03세로 나타났다. 2. 하악의 영구치 맹출시기는 중절치는 남녀 모두 정확한 시기의 측정은 불가능하였지만, 만 6.08세 이전에 맹출한다는 것을 추정 할 수 있었고, 측절치는 남자 만6.78세, 여자 만6.65세, 견치는 남자 만9.76세, 여자 만9.05세, 제1소구치는 남자 만9.82세, 여자 만9.59세, 제2소구치는 남자 만10.67세, 여자 만10.52세, 제1대구치는 남자 만6.22세, 여자 만6.12세, 제2대구치는 남자 만11.58세, 여자 만 11.14세로 나타났다. 3. 맹출순서는 상악은 제1대구치, 중절치, 측절치, 제1소구치, 견치, 제2소구치, 제2대구치 순이었고, 하악은 중절치, 제1대구치, 측절치, 견치, 제1소구치, 제2소구치, 제2대구치 순이었다. 4. 모든 영구치에서 남자보다 여자가 빨리 맹출하였으며, 상악은 약 0.19세, 하악은 약 0.29세 먼저 맹출하였다. 5. 남녀 모두 상악은 측절치와 제1소구치 사이, 하악은 측절치와 견치 사이에 휴지기가 있었고, 남자의 휴지기는 상악 1.98년, 하악 2.98년, 여자는 상악 1.98년, 하악 2.40년이었다. The purpose of this study was to present new data on the timing and sequence of permanent teeth emergence and to compare these findings with the results of earlier studies. The dental examinations had been performed to E-elementary school students, who visited the Yonsei University Dental Hospital between 1998 and 2005; 1,307 boys and 1,312 girls with the age ranging from 6 to 12 years old. The followings were concluded. 1. Eruption time of the maxillary permanent teeth is as follows, It was 6.81 years in male and 6.73 years in female for the central incisor, 7.78 years in male and 7.65 years in female for the lateral incisor, 10.48 years in male and 9.92 years in female for the canine, 9.76 years in male and 9.63 years in female for the first premolar, 10.66 years in male and 10.49 years in female for the second premolar, 6.39 years in male and 6.26 years in female for the first permanent molar, and 12.13 years in male and 12.03 years in female for the second permanent molar. 2. Eruption time of the mandibular permanent teeth is as follows. The central incisor could not be determined in this study, but it is assumed to erupt before the age of 6.08. In the mandible, eruption time was 6.78 years in male and 6.65 years in female for the lateral incisor, 9.76 years in male and 9.05 years in female for the canine, 9.82 years in male and 9.59 years in female for the first premolar, 10.67 years in male and 10.52 years in female for the second premolar, 6.22 years in male and 6.12 years in female for the first permanent molar, and 11.58 years in male and 11.14 years in female for the second permanent molar. 3. The eruption sequence is as follows. In the maxilla, the first permanent molar erupted first, followed by the central incisor, the lateral incisor, the first premolar, the canine, the second premolar, and the second permanent molar. In the mandible, the central incisor erupted first, followed by the first permanent molar, the lateral incisor, the canine, the first premolar, the second premolar, and the second permanent molar. 4. Tooth eruption occurred earlier in female compared to male by average of 0.19 year in the maxilla and 0.29 year in the mandible. 5. In both male and female, the hiatus (interval of rest) occurred between the emergence of lateral incisor and first premolar in the maxilla while it was observed between the lateral incisor and canine in the mandible. Male had a hiatus of 1.98 years in the maxilla and 2.90 years in the mandible, while the female's were 1.98 years and 2.40 years, respectively.
권혁홍,이정로 대진대학교 2001 大眞論叢 Vol.9 No.-
The use of ceramic inserts in hot extrusion dies offers significant technical and economic advantages over other forms of manufacture. These potential benefits can however only be realized by optimal design of the tools so that the ceramic inserts are not subjected to stresses that lead to their premature failure. In this paper, process simulation and stress analysis are thus combined during the design, and a data exchange program has been developed that enables optimal design of the dies taking into account the elastic deflections generated in shrink fitting the d e inserts and that caused by the stresses generated in the process. The stress analysis of the dies is used to determine the stress conditions on the ceramic insert by considering contact and interference effects under both mechanical and thermal loads. The results are compared with the experimental ones for verification.
권중문 한국사진학회 2002 AURA Vol.0 No.9
This thesis mainly consists of three parts related to the broadcasting and video field where we are going through a rapid change through digitalization and computerization of broadcasting hardware and is describing the importance of its role in our society with the change of the times. Lets find out whats the focal point in this thesis in brief before going further. First, we will be able to take a look at the environmental change in digital broadcasting and technical features theoretically such as digital broadcasting, features and Non-Linear edition etc. Second, we will introduce you the guidelines for the practical education making the most of the web like manufacture of the broadcasting program, Non-Linear Edit, video encoding etc. Third, it will give you a demonstration of the webvideo connected to the web site(www.bgcast.com) called Broadcasting & Art Department especially designed at Gyeongsang college. And we will have a chance to come up with any ideas for the development of it onwards. In conclusion, we can manage to find a ground for students to raise his opinions or ideas freely by uploading the materials on the web site made by their own efforts and pave the way for heightening the consummation of their works through criticism and discussion. In addition to that, its accessible to the professors by using them as visual and auditory education media that plays art ancillary role in spot lectures. Last but not least, we can get the advantages from the webvideo not only by applying it to the webcasting but also by using it as fundamental medium for cyber lecture.
권관우,이경무,김훈수,김정순,정경균 韓國保健敎育.健康增進學會 2000 보건교육건강증진학회지 Vol.17 No.2
The objective of this study is to find the most effective educational method on Sex and AIDS/HIV among young people in Korea. The number of people with HIV amounts to 1,224 as of Sep. 2000, and is increasing continuously, especially among young people(National Institute of Health, 2000). In setting up the policy of health education on Sex and AIDS, the criteria should be the effectiveness. By two-stage cluster sampling, 4,713 students were selected from among the 19,093 students from 44 middle and high schools and divided into three groups and taken the education with three different methods(〈lecture with slides show〉, 〈lecture without any material〉 and 〈lecture through broadcasting system〉) by the same lecturer with the same contents for about 50 minutes. To compare the effects of education by methods, the tests on the AIDS knowledge, AIDS attitude on AIDS and Sexuality attitudes with self-administered questionnaire were implemented three times, that is, 'before', 'right after' and '2 weeks later' of the education. As to the decrees of change of AIDS knowledge, AIDS attitudes, Sexuality attitudes and subjective evaluation of the education, 〈lecture with slides show〉 was the most effective, 〈lecture without any material〉 was the second and 〈lecture through broadcasting system〉 was the least effective, respectively. In the cost-effectiveness analysis using the results of this study, 〈lecture with slides show〉 turned out to be the most effective, and 〈lecture through broadcasting system〉 was the second and 〈lecture without any material〉 was least effective. From these results, it is suggested that 〈lecture with slides show〉 is more effective health educational methods on Sex and AIDS than 〈lecture without any material〉 or 〈lecture through broadcasting system〉.
중고등학생의 에이즈 豫防敎育을 통한 에이즈 知識과 性意識 變化에 關한 硏究
권관우,이경무,김정순 韓國學校保健學會 1999 韓國學校保健學會誌 Vol.12 No.1
AIDS is worldwide problem. It has threatens societies and is potentially a big problem among youth. UNAIDS has warned that collective global responses are necessary; with half of the newly infected being children and young people in 1998, educating youth below age 24 is essential. Because of both their unexpected, strong sexual activities and an easjer tendency to change their behavior than adults, UNAIDS emphasizes the importance of prevention education leer youth. In Korea, 4 cases of HIV infection have officially been reported among high school students. Considering the potential seriousness of HIV inflection among youth, the Korean Anti- AIDS Federation (KAAF) began an education programme for Korean youth (middle & high school pupils) as one intervention method in 1993. The purpose of this study is to evaluate the impact of the education programs performed and to develop a better programme. The intervention method used in this study was mainly a lecture in a big or small auditorium or through broadcasting systems using audio-visual teaching aids. The period of this survey was from Nov. 10 to Dec. 26. in 1998. The subjects surveyed were 792 pupils who were sampled from 12 different middle and high schools in Seoul by a two-stage cluster sampling. Self recording the structured questionnaire was used far data collection. Data were analyzed by using a paired t-test to compare the knowledge difference before and after the interrention method. A chi-square test to compare the consciousness difference between pre-post-education results was used, and an ANOVA was used to compare the knowledge difference among the selected groups. Major results of this study are summarized as follows: (1) AIDS knowledge significantly changed after AIDS prevention education. (2) The direct lecture in a big or small auditorium is more effective than an indirect lecture through a broadcasting system or through audio-visual teaching aids. (3) Those who had not seen obscene materials (e.g. pornography films, magazines etc.) acquired much more knowledge than others after AIDS prevention education. (4) Those who had no girlfriend/or boyfriend acquired much more knowledge than the others after AIDS prevention education. (5) As to the attitudes toward chastity, more girls than boys and students who had not seen obscene materials rather than those who already had were liable to support the state ment: "all should remain chase" and their consciousness on "being chaste" changed much more than that of others after intervention. (6) As to the individual evaluation of lectures, 23.1% shows "very good" , 44.1% "good" , 26.9% "normal"'-'thus, the positive evaluation was to 94.2%. The negative response was 5.8%. (7) As to the desire fur AIDS education sponsored by KAAF in the future, more than몫90.5% showed a positive reaction. (8) As to the educators in future education methods, pupils wanted lecturers from outside their schood. (9) Students from vocational high schools have seen obscene materials much more than other groups and the percentage of these who had a girlfriend/or boyfriend was higher than that of the ethers as wello. (10) 90% of those who watched obscene materials responded that they experienced these materials while at middle school and 100% before reaching the second grade of high school. (11) The number of boys who have experienced obscene materials is twice as many as that of girls. (12) The percentage of boys who have a girlfriend is much higher than the percentage of girls who have a boyfriend. (13) Among those who have friends of the opposite sex, 11.1% say that they hare had sexual contact and 20.8% hare experienced kissing and caressing.
권중문 한국사진학회 2005 AURA Vol.0 No.12
This study aimed to investigate the way of Drama' visual presentation concerning how each element of a visual is organically combined with each other and create new meanings by comparing and analyzing visual presentation of analogue TV and HD TV programs with each other. The research methods used in this study were two visual analysis methods. First, a comprehensive analysis method included all elements ranging from the smallest unit of an visual, shots, sequences, and story telling. Second, a systematic analysis method broke down camera shots, angles, brightness ratio, contrast ratio, and perspective representation. It was revealed in the study that the HDTV Drama consisted full shots, long full shots, visual presentation with depth, hard lighting, and plenty of scenes and small number of shots, while analogue TV Drama used close-ups and soft lighting a lot. However, both TVs showed little difference in camera angles and lighting (front and back light).
600합금의 미세조직 변화 및 SCC거동에 미치는 Ce 첨가의 영향
권오철,이용선,임연수,정만교,김정수 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.1
High purity model alloys with major composition Ni-15Cr-9Fe-0.03C (600CEO) and Ni-15Cr-9Fe-0.03C-0.04Ce (600CE4) were produced. Using these model alloys the effect of alloying element Ce on the SCC behavior of Alloy 600 was evaluated in a caustic solution. To obtain carbides precipitated on grain boundaries, the thermal treatment was performed on both the solution annealed model alloys. Microstructural examinations using SEM and TEM EDX showed that the same structural carbides, Cr_(7)Cc₃, were precipitated on both the alloys and no significant difference in the amount of Cr depletion along grain boundaries was observed between the two model alloys. However, it was shown that the coverage of grain boundary carbides was higher in the Ce-bearing alloy (600CE4). The SCC susceptibility of the alloys was investigated in 40%NaOH solution at 315℃. Being evaluated in terms of the maximum crack depth, the SCC susceptibility of the alloy turned out to be reduced by the addition of Ce. The increased resistance to the SCC in the alloy 600CE4 was considered to be attributable to the increased coverage of grain boundary carbides. (Received September 30, 2004)
權赫洪,李正魯 대진대학교 2000 大眞論叢 Vol.8 No.-
The structure analysis of tapping M/C is developed to improve dynamic characteristics in this study. To this purpose a tapping M/C is mathematically modelled and dynamic response analysis of the model are investigated by use of Finite Element Method(FEM) The investigation procedures are as follows. The finite element modelling of the tapping m/c is done with triangular and rectangular plate elements and each node of the elements has 6 degrees of freedom. And this model is idealized as a forced vibration system under impulse load by cutting force. Model parameters, natural frequency and mode shape, and dynamic response for displacement and stress are analyzed by use of mode superposition method. To reduce computing time of dynamic response analysis, lower vibration mode is analyzed with master-DOF and mass participation factor. In this case maximum relative displacement is occured at 22.74 Hz in the right column.
김정권,김혜경 한국특수교육문제연구소 2001 특수교육저널 : 이론과 실천 Vol.2 No.1
본 연구의 목적은 자기결정의 이론적 정립과 함께 이제까지 연구된 자기결정의 모형에 대한 탐색을 하고자 하논 것이다. 그러기 위해 여러 이론과 모형 중에 가장 많이 대두되고 있는 4가지 이론과 모형을 중심으로 논의한다. 이 이론과 모형은 대부분 최근에 연구되고 있는 것들이기 때문에 포스트모던을 주로 지배하고 있는 주관적, 거시적 입장을 취하고 있으며, 자아에 대한 지식과 존중을 바탕으로 한 자아 표현 능력과 태도를 강조하며, 자기결정의 이해와 발전을 위해 환경과의 상호작용을 강조하는 생태학적 입장을 취하고 있다. The purposes of this study are to explore the theories and models about self-determination. The first part of this study addresses the theories of self-determination. Theories provide individuals with a foundation of why and how think and behave. This is accomplished by first briefly describing the theories that are directly or indirectly related to self-determination. First, these are included (a) the cognitive evaluation theory, (b) the self-regulation theory, (c) the self-efficacy theory, (d) the equal opportunity theory. These theories emphasized the role that a society perform in the development of an individual ’ s self-determination. At the same time, the society must fumish the individual with the opportunities to express their self-determination. Second, this study addresses the models of self determination. The theories of self-determination lay the foundation for the self-determination models, A model is an abstract representation of a phenomenon or system. In this case, the models represent various aspects of the self-determination theories. There are four predominate models of self-determination. They include (a) Mithaug, Campeau, and Wolman's model, (b) Abery's ecosystem model, (c) W ehmeyer' s model, and (d) Field, and Hoffman' s model. These models are multifaceted with an emphasis on the individual within various environments. The model takes into consideration the skills base. the knowledge base, and the motivational base of individual within an ecosystem framework. From this perspective, to gain a better understanding of the level of self-detennination of individuals. one must understand the interaction between the individual and the environment.