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레이저용접에 의한 박판구조물의 용접변형 해석에 관한 연구
김충기,김재웅,김기철,Kim, Choong-Gi,Kim, Jae-Woong,Kim, Ki-Chul 대한용접접합학회 2007 대한용접·접합학회지 Vol.25 No.1
Prediction and control of the thermal distortion is particularly important for the design and manufacture of welded thin plate panel. In this study, experiments and computations are performed to analyze effect of a hole configuration and a specimen size on distortion. In addition, this study aims to develop a thermal elasto-plastic simulation using finite element method to predict distortion, with particular emphasis on buckling deformation generated in plates welded around hole. From the experiments, the severe distortion appeared in the weldments by the laser welding process, in which the specimen size plays an important role on the distortion but the hole configuration showed little effect. And the results of numerical analysis were corresponded well with the experiment ones. Thus, a thermal elasto-plastic analysis model for predicting the weld distortion of thin plate panel was successfully developed through this study.
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김충기 ( Choong-ki Kim ),이현우,노영희,최지연,강창우,전현주,유재원,이창근,정수영,성은주,김도균,강대석 한국환경정책평가연구원 2016 사업보고서 Vol.2016 No.-
건강한 자연 생태계가 제공하는 다양한 생태계서비스는 인간의 사회·경제활동 및 행복을 유지하기 위한 필수 요소이다. 이 때문에 생태계와 생태계서비스에 의존적인 사회·경제활동을 더 잘 이해하고 관리하기 위해서는 생태계 및 사회경제 시스템의 통합적 관점에서 접근할 필요가 있다. 연안지역 주민들의 경우, 연안이 제공하는 자연혜택에 의존하는 면이 비교적 크다. 개인 단위에서는 어업을 통해 생계를 유지하고, 아름다운 경관에 기반한 생태관광 및 레크레이션 산업은 지역경제에 크게 기여 할 수 있다. 자연이 제공하는 혜택의 중요성에 대해서는 모든 사람이 인정하고 있지만, 구성원들마다 자연혜택의 우선순위 및 가치에 대한 입장은 다르다. 이러한 입장차는 환경갈등을 초래하는 불씨가 된다. 환경갈등은 자연자본, 공유자원 등을 둘러싼 서로 다른 가치, 이해관계, 목표 등을 가진 집단 간 갈등으로, 이를 합리적으로 해결하는 데에는 자연혜택에 대한 과학적인 평가와 이해관계자의 참여를 통한 투명한 의사결정과정이 동시에 보장되어야 한다. 본 연구에서는 자연혜택을 객관적으로 평가할 수 있는 과학적인 의사결정 방법론을 개발하여 지역의 환경갈등 중재에 활용하고, 나아가 지자체의 자연 개발 및 보전이 조화되는 지속가능한 지역경제 활성화 방안을 제시하는 것을 목표로 한다. 1차년도 연구에서는 연안지역이 제공하는 자연혜택 평가기법들을 조사하고 국내 적용가능성을 검토하였다. 생태계서비스 기반의 평가기법 가운데 이해관계자의 참여 부문에서 강점을 가지고 있는 해양 건강도 지수(Ocean Health Index)를 선택하여 가로림만 권역의 식량공급, 생물다양성, 깨끗한 물, 탄소저장, 생계 및 경제, 관광 및 여가 부문에 대한 현황을 평가하였다. 가로림만의 식량공급 기능은 100점 만점에 62점으로 평가되었고 시간에 따라 감소하는 경향을 보였다. 탄소저장 기능은 80점으로 평가되었고, 서산지역이 약한 감소세를 태안지역이 증가하는 경향을 보였다. 생계는 92점, 경제는 82점으로 평가되었고 증가 추세를 보였다. 관광 및 여가 부문은 67점으로 평가되었고 증가 추세를 보였다. 깨끗한 물은 69점으로 평가되었고 생물다양성은 종의 경우 82점, 서식처의 경우 79점으로 평가되었다. 1차년도 연구 결과를 바탕으로 2차년도 연구에서는 자연혜택 평가의 목표별 참조점과 시간 및 공간해상도에 따른 민감도를 고려하여 분석할 예정이다. 또한 지역주민이 누리고 있는 연안의 자연혜택이 해역에만 국한된 것이 아니기 때문에 육역까지 확장된 공간적 범위를 평가할 계획이다. 이를 통해 현황과 트렌드 분석뿐만 아니라 회복력과 압력 요인을 추가로 고려한 자연혜택 평가를 통해 지역경제 활성화를 위한 정책방안을 제시하고자 한다. Diverse ecosystem services provided by the ecosystem`s natural capital are essential for the maintenance of life for all living creatures on the Earth. It is also an essential foundation for maintaining the social and economic activities of mankind. Therefore, in order to understand and manage the socio-economic activities that are relatively highly dependent on natural capital of ecosystem and its services, it is necessary to be approached from an integrated viewpoint of ecological-economic system. Coastal residents are relatively more dependent on the nature`s benefits provided by coastal environments. An example is that they make their living through fisheries in individual units, or earn tourism income through beautiful landscapes at the local economy level. In overall, everyone acknowledges the importance of the nature`s benefits, however each has a different perspective on the value of the preferential nature`s benefits. Such a gap can lead to environmental conflicts. An environmental conflict refer to the discord between groups with different values, interests, and goals surrounding natural capital and common resources. Therefore, for resolving it reasonably, use of scientific decision support tools and transparent decision-making process participating stakeholder should be ensured at the same time. The purpose of this study are to develop a scientific methodology for decision-making that can objectively evaluate the nature`s benefits and to utilize it in mediating local conflicts, and to propose a sustainable regional economic revitalization plan which harmonizes with natural development and conservation efforts of local government. The objective of the first year`s research are to investigate the techniques used for evaluating the nature`s benefits of coastal region and to examine whether they can be applied in Korea. Ocean Health Index(OHI) was selected among the assessment tools, which is useful in facilitating stakeholder engagement, and was applied to understand the current status of food supply, biodiversity, clean water, carbon storage, livelihoods and economics, and nature-based tourism and leisure in Garorim Bay region including Seosan and Taean. As a result of the analysis, the food supply category scored 62 of 100 points showing a trend of slight decline. Carbon storage scored 80 points with weakly decreasing in Seosan and slightly increasing in Taean. The livelihood and economic sectors scored 92 and 82 points, respectively, with an increasing trend. The tourism and leisure sectors scored 67 points with increasing trend, and the clean water sector scored 69. In the biodiversity sector, the scores of species and habitats were 82 and 79 points, respectively. In the second year study, we will assess the nature`s benefits with each goals` reference point and sensitivity according to temporal and spatial resolution based on the findings of the first year research. We will also broaden the spatial scope of assessment to coastal landward boundaries because coastal natural benefits being enjoyed by the local people are not only limited to the ocean area. By incorporating the resilience and pressure factors as well as the status and trend analysis, it will help to inform decision-making for sustainable development in the local provinces.
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김충기 ( Choong Ki Kim ) 건국대학교 교육연구소 1995 교사와 교육(구 교육논집) Vol.19 No.-
As our society has increased in complexity and become more dependent on technological development, the need for education beyond mininal levels also has become more apparent. Our nation`s great challenge is to develop each individual to his hibhest potentiality University institution will allow students more opportunity to make decisions and to face responsibility for their decisions and also will be judged by how well they serve the needs of students and prepare them for every aspect of life. The University function is to find and to develop the leadership of his about for preparing future professional job to the lifelong career to the end. In this regard, it is necessary to give job opportunity for college students thet college career guidance is required for finding career choice in the changing industrial society. The purpose of this study was to investigate what the university education functions, to introduce the practical problems facing interest for their students and to give them career strategies fur preparing future life This study was also consisted of universalization of college education and vocational education, career guidance of the university for the occupational choice and strategy toward the information age. The method of this study was found by the procedure of review of related literature. The conclusions of this study were summarized as followint items, University education in the present day belongs to the stage of career specialization in view of career development. University functions is to enlighten the potentiality of students and called the place of finding academic achievement and truth. On the otherhand, the concept of this function become to be known the place of preparing professional occupation through the study of his major field from the college education process. Therefore, it is of mecessity to have proper career information for students to choose and to decide satifying occupation to the end. Career guidance in the university become to emphasize to the students on the basis of aptitude interest, ability, phsical condition and value system in order to choose their optimal goals for satisfying adjustment.
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중등학교(中等學敎)에 있어서 생활지도활동(生活指導活動)에 관한 연구(硏究)
김충기 ( Choong Ki Kim ) 건국대학교 교육연구소 1977 교사와 교육(구 교육논집) Vol.2 No.-
生活指導는 敎育의 目的을 具現 및 達成하기 위한 方法 중의 하나로서 學生이 제각기 독특하게 지니고 있는 發達可能性을 發見하여 這所에 맞도록 도와 주고 이끌어 주는 敎育的인 活動이다. 따라서 日常生活에서 解抉해야 할 家庭的·社會的·身體的·情續的·職業的 問題를 自力우로 해결할 수 있도록 지도하기 위한 奉仕이다. 本論文에서는 中等學校에 있어서 生活指導의 실시단계를 5단계로 나누어 분류하고 있다. 첫째 학생조사 활동으로 兒童, 學生의 過去의 經驗·環境·素質·適性·興味 등을 調査하여 相談活動에 基礎的 資料로 삼고 정확하고 신뢰성 있는 자료를 수집하며, 둘째 情報活動으로서 敎育的·職業的·個人的 및 社會的 情報의 諸領域을 조사연구하여 多樣性있는 여러가지 소식을 제공한다. 세째로 相談活動으로서 위에 調査한 基礎資料와 情報蒐集을 통한 諸資料를 바탕으로 被相談者의 問題解決에 自發的인 도움을 주도록 한다 네째로는 定置活動으로 卒業後에 兒童 學生에 대한 配置, 적당한 位置에 안내하는 綜合的인 作用과, 다섯째로 事後活動으로 相談活動 및 봉사활동의 적당여부의 확인을 위한 점검작업활동을 조사하였다. 이상의 다섯가지 영역은 生活指導를 원만히 이루는데 가장 必須的인 要素로써 적극적이고 바람직한 활동이 中高等學校에서 철저히 이행되기를 바라는 바이다.
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진로교육(進路敎育) 실천방안(實踐方案)을 위한 탐색적(探索的) 일연구(壹硏究)
김충기 ( Choong Ki Kim ) 건국대학교 교육연구소 1982 교사와 교육(구 교육논집) Vol.6 No.-
Career education and placement have been given a new impetus in both school and agency settings since the 1970`s as a result of the national career education movement. In the past, career guidance was a recognized activity of most school guidance programs, but it received little curricular emphasis and, as a result, in many settings was less than effective. Now, however, schools recognize the inseparability of career education and career guidance. Further, agencies and other non-educational institutions, in the past, were primarily concerned with career placement of first-time job seekers are now recognizing the probability and importance of mid-life career changes, the possibility of employment in a new field after retirement, and the elimination of many traditional barriers to the women and older adults. The main emphasis of this study was to find the method of career guidance in the secondary school in this country and program development for the purpose of teaching in the classroom. Increased attention has also been given to placement and follow-up as a planned guidance activity. This emphasis has been prompted by legislative funding and recognition that career development without placement is an incomplete process. Finally, career guidance as a part of career education should be taught without doubt in the secondary schools.
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