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매설방법과 차량하중에 따른 벤더형 압전에너지 하베스터의 설계 및 평가
김창일,정영훈,윤지선,조정호,백종후,장용호,최범진,박신서,조영봉,Kim, Chang-Il,Jeong, Young-Hun,Yun, Ji-Sun,Cho, Jeong-Ho,Paik, Jong-Hoo,Jang, Yong-Ho,Choi, Beom-Jin,Park, Shin-Seo,Cho, Young-Bong 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.5
A road energy harvester was designed and fabricated to convert mechanical energy from the vehicle load to electrical energy. The road energy harvester is composed of 20 piezoelectric materials. This study attempted to evaluate output depending on pavement materials when paving road piezoelectric energy harvester in the road. Harvester is the bender type and is the method of supporting the both ends of piezoelectric material and applying the load in the middle part. Harvester was paved in the type paved with asphalt, type paved with cement and in the exposed type not covering the top of harvester. The output characteristics were compared and evaluated depending on changes in vehicle load and vehicle speed changes. As vehicles, truck (11.9 ton), SUV(1.6 ton) and sedan (1.5 ton) were used and the output characteristics when driving at the interval of 10 km/h from 10 km/h to 100 km/h were evaluated.
중소기업형 CIM시스템 구축을 위한 생산계획수립 및 실적파악 모듈
최후곤,신완선,장중순,서준성,여명구,안동근,김진봉 成均館大學校 科學技術硏究所 1996 論文集 Vol.47 No.2
This study Focuses on developing several modules involved in an integrated production information system for medium- or small-sized industries. The modules of order management, quality control, production scheduling, and shop management are executed for an example case industry. The potential values of this research includes that the major information modules to collect, analysis, and display production data and shop data for constructing the computer integrated manufacturing system(CIMS) are programmed with various features of medium- or small-sized industries
벼 大單位 增産團地栽培에 關한 經營實態調査 : 慶南地方의 5個 團地를 中心으로
金厚根,金正敎,尹泰圭,河湖成,張權烈 慶尙大學校 1975 論文集 Vol.14 No.-
Recently large scale cooperative rice production system has been promoted. This cooperative rice production system is intended to promote introducing a set of new technology which may not be suitable for individual small scale farms to adopt. And this system is believed to be one of important public programs to achieve productivity growth policy goal in Korea. Nevertheless, there seem to exist several problems for this public program to widely introduce to over-all nation. This is one of main objectives that this study intends to investigate. In order to study comparative characteristics of the large scale rice cooperative farm in terms of resource base and organization 99 farms which are member farms and 100 farms which are non-member individual farms have been selected and interviewed from five large scale cooperative farm areas in Gyeong-Nam Province in 1974. The important findings can be summarized as follows: 1) Most of operators af both classes belong to age cohert 40∼50, but the average educational level for member farm operators is higher than that for non-member. 2) The average scale Of rice paddy for member farms, 13.1 tanbO, is larger than that for non-member, 10.6, and the same thing is true for average size of rice paddy plots which is, respectively, 805 pyeong and 690. 3) Completely irrigated paddy for member farms is 99 percent of total paddy owned whereas that for non-member is 81, and consolidated paddy for member farms is 67 percent while that for non-member is 26.4. On the other hand, technically improved paddy other than indicated above for member farms is 32 percent, but that for non-member is only 8.3. 4) Number of rice varieties adopted is 9 for both classes. The most popular variety for member farm is Akibare(36%) whereas that for non-member is Sadominori(29.3%) and Akibare (28.4%). 5) Labor used is 13.5 man per tanbo for member farms and 12.4 for non-member. More labor is used for improving soil quality and protection for member farms whereas less labor is used for preparatory works such as seed bed, sterilization, and water management in the case of the member farm. 6) In the case of member farms, the type of work which is achieved cooperatively by more than 70 percent is purchasing or exchaging seeds, sterilization, and plant protection. Despite seed bad, water management, transplanting and the like being more or less suitable for cooperative work, the proportion of those works done cooperatively is relatively small as compared to what we expected. 7) According to farmers interviewed, variety selection, plant protection, seed bed, transplanting fertilization, water management, and harvesting works are more easier for cooperation, in order importance. 8) Cooperative farmers were cultivating a leading variety, Tongil, which showed higher yields than ordinary varieties and had a desire to be released a new high yielding variety which has a characteristics of highly resistance to dsease and insect. 9) Cooperative farmers were forced to begin the nusery bed earlier than the individual farmers and to emphasize on the disease and insect control with more frequencies. 10) Cooperative farmers had benefits in the seedling transplanting earlier and higher planting density than individual farmers. 11) Cooperative farmers had an intention to apply a deep fertilization method arid to dress heavier nitrogen with a reasonable ratio of the basal fertilization to the top dressing. 12) Cooperative farmers had a convenient irrigation system and were available to adopt a summer drainage method. 13) Cooperative farmers controlled the weed with agricultural chemicals arid recognized the control effect of weedcides. 14) In general, it was recognized that there happened somewhat benefit result in disease control in the cooperative farm while a reasonable control effect was not found in heavy prevailing case. The dominant diseases found in the cooperative farm were sheath bright, strip disease and they were to he prevented with a strong efforts. 15) Rice stem borer and grass leaf roller were effelctivey controlled in the cooperative farm, however, plant hoppers was not completely controlled by the usual method because of its unexpected prevalence. 16) The most difficult thing to cooperate they indicate is to supply an adequate amount of labor at appropriate time in tire labor peak season. In this sense, it seems necessary to introduce field machinary in order to achieve the objective of large scale cooperative rice production. 17) Farmers interviewed believe that technology concerning yield increase is most important. in this respect, it is important to develop such new technology, to diseminate its results and to train good quality extension workers. 18) 42 percent of member farm operators indicate that the cooperative system was successful and 25 percent indicate failed. 29 percent of non-member farmers think that the cooperative farm system was successful and 7 percent of them think failed. Thus 55 percent of non-member farmers indicate they are willing to join to the system in the next year, 7 percent of them are not and others have not decided yet. 19) 60 percent of member farmers think that the scale and number of members of the system were too much large to successfully cooperate and 67 percent of them believe that cooperation among members were not very developed, and 42 percent of members suppose what the leader of individual active farms were not very well functioning. 20) Number of member farmers who believe that the yield level in this year is increased as compared that before joining to the system is 3,4 percent, and no one indicated that the yield level is decreased. On the other hand, 22 percent of them believe that by participating to the system the same quality of paddy could produce more rice. 21) About 93 percent of member farmers believe that the system may not lie survived without support of government and i priority must be given to yield technology. 22) About 80 percent of member operators indicate that they would partioipate to the program in the next production year and 23 percent of them indicate that they would participate with the same amount of paddy land as this year. 23) The rice yield level for member and non-member farms is, respectively, 406kg and 346 per tanbo, and the former is 17.3 percent higher than the latter. 24) The cash expenses per tanbo for member and non-member farms is, respectively, 12,311 won and 10,398. 25) The gross revenud per tanbo for both classes is, respectively, 60,024 won, and 51,303 when evaluated by the official price level, and the net income is, respectively, 47,713 won and 40,905. As seen above, the fact that the rice yield level of member farmers, hence, the income level turns out to be higher seems to stem from two basic factors; that is, on the average, the member farmers are operating farm with an improved resource base and they seem to use more the so called conventional inputs with a better yield technology and management. Thus we may conclude that it is important to invest to improve resource quality, to innovate new yield technology and diseminate this innovation. At the same time, in order to more promote the cooperative system, it seems desirable to solve the following problem areas: 1) Number of member farms and paddy area covered by one cooperaitve unit seems better not to he very large. This seems so because there is on much scale economies owing to the nature of technology available to adopt, whereas a large member unit may restrict opportunity of individual members to deeply involve in the process of decision making. Thus we recommend to continue to study finding an optimum size of the unit. 2) As implied already, quality as well as quantity of extension workers and other local officers who lead this program area crucial factor to expand number of unit of the system and hence to achieve the objective of the program. 3) In order to get rid of labor deficit, especially in the labor peak season farm mechanization seems necessary. For this matter, it is worthwhile to promote, first of all, to invent suitable field machinery, secondly, land consolidation and other land improvement projects, and thirdly to innovate a new technology system suitable to mechanized farming. At any rate, it is also necessary for the government to supply an adequate amount of credit and other administrative support.
정신장애인 치료에 중요 역할 담당자의 정신질환에 대한 태도조사
김병후,정선욱,강연화,김윤,김창엽,홍진표,한오수,조맹제,김용익 大韓神經精神醫學會 1996 신경정신의학 Vol.35 No.5
Objectives : Attitudes of families of mentally ill, health personnels and community leaders to the mentally ill after the development and utilization of the community mental health program and reintegration of the chronically ill patients into society. This study was designed to compare the attitudes toward the mentally ill patient of the persons who have important role in treating the mentally ill and to find the variables influencing the attitudes. Methods : We measured attitudes toward mental illness in psychotic patients' families(N=139), community leaders(N=180) and health personnels(N=324) including mental health personnels before the implementation of community mental health services in Yonchon county and Seodaemun district area. The instrument used to measure attitudes was Opinion about Mental Illness(O. M. I.) scale. Results : 1) Health personnel showed lower Authoritarianism(Factor A) and higher Benevolence(Factor B) scores on the average than community leaders and psychotic patients families. 2) Current residence affect the attitudes in psychotic patients' families, not in community leaders and health personnels. Families in urban area showed lower Authoritarianism(Factor A) and Social Restrictiveness(Factor D) and higher Benevolence(Factor B) scores than in the rural areas. 3) Many patient variables were correlated to the attitudes of families. Duration of illness, number of recurrence, number of admission, age of patient and family burden were positively correlated mainly to Social Restrictiveness(Factor D). 4) Sex and religion of respondents showed no or weak relationship with the factor scores. Conclusions : Education for community leaders and families is required to achieve successful community mental health services. Community support program should be developed for chronic, recurrent and burdensome psychiatric patients in the first place.
이재창,홍후조,김미진,임재일 이화여자대학교 교과교육연구소 2014 교과교육학연구 Vol.18 No.4
본 연구에서는 2013년도에 실시한 자유학기제 연구학교 42개교의 운영 보고서를 분석함으로써 시험이 없는 교육의양상을 살펴보았다. 연구결과 자유학기제는 첫째, 공통과정 기본교과 수업방식의 대부분이 학생주도적인 활동으로이루어지고 있었다. 둘째, 진로탐색 활동이 다양화되고 심화되었다. 셋째, 자율과정은 주입식 교육에서 벗어나 다양한 활동을 제공하고 있었다. 넷째, 학교는 지역사회와의 인적․물적 자원과 연계 지도 인프라 구축을 통해 연계 지도를 하고 있었다. 반면, 자유학기제의 여러 가지 문제점도 발견할 수 있었다. 우선, 자유학기제의 차별화된 교육활동은 중학교 1학년내, 그리고 학년 간의 교육계획에 있어서 혼란을 야기하고 있었다. 또한, 자유학기제 해당 학생들에게만 편중된 교육을 제공하여 타 학년과의 위화감과 소외감도 조성하고 있었다. 그리고 진로탐색 활동의 경우 지적인 탐색과 진로 검사와상담 ,체험을 통한 체득 등 탐색하고 체득하는 활동에만 편중되어 있었다. 끝으로, 자율과정의선택 프로그램 활동, 동아리 활동등 다양한 범주들이 중복되고 비체계적이라는 문제가 발견되었다. 이러한 문제점을해결하고자 본 연구에서는 첫째, 교육과정 계획 단계부터 운영에 이르기까지 교사들이 공동으로 연구하여 자유학기제를 운영하는 학기와 일반 학기의 격차를 줄여야 한다. 둘째, 자유학기제 시행으로 인한 긍정적인 효과들을 타 학년에도적용할 필요가 있다. 셋째, 진로윤리교육의 확대를 통해 균형 잡힌 진로탐색 활동 전개를 주문하였다. 넷째, 자율과정 중 성격과 내용 면에서 서로 중복된 범주들을 체계적으로 정비하여야 할 필요가 있음을 강조하였다 This research analyzed the reports on Free Semester System of 42 pilot schools, which do not have any assessment, in order to inspect the new ways of instructions and educational activities. The results are as follows; First, most of the basic subjects instructions on common courses were student-centered activities. Second, career exploration activities were diversified and enhanced. Third, optional courses provided various activities which fitted students’ interests and needs. Fourth, all of the educational necessities were provided for the pilot schools by the local community. However, Free Semester System’s new curriculum causes some confusion in the operation of educational plans, not only for first grade students but also second and third grade students. nbalanced new educational experiences among Free Semester System students and other grade students cause a sense of incongruity and alienation. In addition, career exploration activities put too much emphasis on intellectual exploration, career-test and career-counselling, and career related experience. Finally, optional courses programs were often redundant and required organization. uggestions to solve these problems are as follows; First, School staffs should build the school curriculum together from planning to management in order to decrease the gap between Free Semester System and general semester system. Second, the positive effect of Free Semester System should be applied to other grades to solve the sense of incongruity and to increase the quality of education. Third, career exploration activities need to be balanced by increasing the learning of vocational ethics. Fourth, optional courses have to be re-arranged to be more systematic. If additional research is conducted in accordance with the suggestions made by this research, Free Semester System will regain the authentic educational role of middle school, which is different from that of junior high school, and will play a role as the bridge of lementary school’s basic education and high school’s career-based education.
최성호,김창배 崇實大學校 2000 論文集 Vol.30 No.1
Plasma display panels (PDP) are high-brightness and large-area flat panel displays. PDP researches investigate various aspects, which include gas compositions, cell design and the driving mechanisms. We model the coplanar electrode PDP with both Ne gas and Ne-Xe gas mixtures, respectively, and study plasma formation processes. Specifically, we focus on the kinetic properties of PDP using Particle-in-Cell/Monte Carlo two-dimensional code, OOPIC.
Dipalmitoyl Phosphatidyl Choline Vesicle 촉매에 의한 para-Nitrophenyl Palmitate의 가수분해 반응
최창진,이후설 圓光大學校 基礎自然科學硏究所 1987 基礎科學硏究誌 Vol.6 No.2
Dipalmitoyl phosphatidyl choline and p-nitrophenyl palmitate were directly sonicated in acidic water for 6 min to give clear stock solutions. The catalytic hydrolysis of p-nitropheny palmitate was studied at 30-55℃ in the presence of unilamellar vesicle and mixture of uni- and multilamellar aggregates. The difference of rate between uni- and mixture reaction was observed, where unilamellar reaction was more catalytic effect. The phase transition temperature of vesicle was 37-44℃.
조병후,최고열,이창용,김봉주 서울産業大學校 1999 논문집 Vol.50 No.2
The characteristics of cement pastes and mortars containing zeolite A were investigated. The hydration of C₃S was a little restrained in cement pastes containing Zeolite A. The cement pastes containing zeolite A also exhibited that the formation of Ca(OH)₂ decreased and the amount of macropores increased with zeolite content. The strength of the mortar admixed zeolite A was lower than that of plain and decreased with zeolite content. These results would be related to the residual NaOH in the powder of zeolite A, which had influence on the cement hydration.
조영환,우창호,곽행구,박송희 木浦大學校 沿岸環境硏究所 1996 沿岸環境硏究 Vol.13 No.1
This study aims is suggested a development methods of reasonable for security to identity of urban park which supplement to demerits of urban natural park and arboretum. Park orinted arboretum had characteristic not only enjoyment but learned to use all facility of park and exhibition at the same time to function of scientific research, education and park. Case study is conducted on the YU DAL SAN in Mok po city.