• 제목/요약/키워드: Environmental problems

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목포지역 중학생들의 환경교과교육 실시 효과에 관한 비교 조사연구 (A Comparative Study on the Effects of Environmental Education in Middle School Students, Mokpo City)

  • 박현주;정진화;정일현;나춘기
    • 한국환경과학회지
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    • 제17권4호
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    • pp.365-374
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    • 2008
  • The purpose of this study was to clarify the effects of the environmental education system focusing on the knowledge, attitude and practice in relation to environmental education to the students in Mokpo middle school. The study is accomplished by the survey which includes a total of 268 inquiry lists sampled from four groups of the middle school, one of which composing of two middle schools having the environmental curriculum, hereafter referred as 'the case group' and the other group of two middle schools without the curriculum, hereafter referred as the 'the control group'. From the results of the average scores on the environmental knowledge, attitude and practice between the two groups, the case group showed better knowledge scores than the control group (p<0.05). The case group with environmental education were relatively high to the control group without environmental education to the attitude(p<0.05), and did not showed signifiant differences in the environmental practice. From the results of stepwise multiple regression analysis, the factor affecting the environmental knowledges was the interest in the environment problems ($R^2=0.130$), economic status, academic achievement and the necessity of environment conservations in order. The factor most affecting to environmental attitude and practice were the interest in environmental problems of the parents.

다차원 유한요소법을 이용한 웹 기반의 범용적 편미분 방정식 해석 모형의 개발 및 적용 - I. 모형의 개발 - (Web based General Partial Differential Equation Solver using Multidimensional Finite Element Method - I. Model Development -)

  • 김준현;한영한
    • 환경영향평가
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    • 제10권4호
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    • pp.319-326
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    • 2001
  • This study is aimed at the development of a comprehensive web-based partial differential equation solver (WPDES) using multidimensional finite element method, which can be operated on the basis of world wide web. Overall issues of engineering and environmental information management and facility control could be implemented using this solver. This paper describes the development technique of the model, which is first part on development of partial differential equation solver. Conventional commercial general solver of computational fluid dynamics problems were investigated. All the relevant environmental models were analyzed to develop integrated environmental management system using WPDES. The governing equations and the parameters of investigated models were analyzed and integrated. Several numerical modules were invented for each partial differential term in partial differential equation of many related modeling problems. Each module was coded in the fashion of object oriented method, and was combined independently for the overall governing equation. WPDES has unique characteristic, which can analyze the problem through the suitable combination of modules without development of additional models for each environment problem with different governing equation, main variables, and parameters.

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실내공간의 화예디자인 표현유형 분석에 관한 연구 (A Study on the Expressive Types Analysis of Floral Art Design in Interior Space)

  • 김준연;한영호
    • 한국실내디자인학회논문집
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    • 제14권4호
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    • pp.106-113
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    • 2005
  • The advancements of the society aggravate ecological problems, and it is at a point where our living environment is under a serious threat. To resolve such problems, environmental friendly design concepts are evolving through various naming conventions such as conservation of global environment, environmental symbiosis, friendly environmental, nature-friendly, environmental friendly type, green building and eco-construction. Accordingly, in this research, for the purposes of healthy living environmental construction, nature as the subject of its design and highly praised as a new design arena, floral art design theory and its functions, as well as its examples are explored. With the Information available, I was able to confirm that, in interior decorating, floral art design is used as a tool for expressing environmental friendly space, and gradually its necessity and the scope of its application have been broadened. Therefore, utilization of floral art design is to fabricate environmental friendly interior space; and it is expected as a substitute for accomplishing green amenity, and its study should continue for the years to come.

환경교육 전.후 학생들의 환경문제에 대한 태도와 인식변화에 관한 연구(II) (A Study on The Change of University Student's Consciousness and Behavior for Environmental Problems Before and After Environmental Education(II))

  • 박기학;이덕난
    • 환경위생공학
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    • 제22권4호
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    • pp.105-117
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    • 2007
  • The research was conducted based on the 1012 cases questionnaire for the purpose of to evaluate the change effect of university student's consciousness and behavior before and after lecture on environmental problems. And this questionnaires were performed with self-administered by the university student who made a application for liberal arts related to environmental subjects. The results were as follows. According to the analysis results the most students responded that the most serious problem of environmental pollution before the lecture on environmental education was a genetic modified organism(3.64/4.00), but the most serious problem of environmental pollution was changed to the topic of water pollution(3.96/4.00) after the lecture on environmental problem. And also according to the analysis results dributed by gender were that boy students show a higher concerning(170%) than that of girl students(150%). The most good results obtained after lecture on environmental problem were water pollution(23.0%), air pollution(11.5%), waste material pollution(10.9%), food additives (10.0%), genetic modified organism(8.0%), endocrine disrupter(7.5%), respectively. And according to the analysis results distributed by a grade were that the concerning of a low grade(freshman, sophomore)were higher than that of a high grade(junior, senior) in the topic of water pollution, air pollution, waste material pollution. But there were high level of awareness on the topic of food additives, genetic modified organism, endocrine disrupter to the all students(freshman to senior). And according to the analysis results distributed by a major field of study were that students who major in art & athletics, liberal art and etc(public health) were show a deep concerning than that of science & engineering. Finally, the environmental education during the university class were effectively contribute to increase the awareness of the seriousness of environmental pollution problem(8.2%) and also contribute to the practical life after class also increase their consciousness of environmental problem(59.8%).

연안개발사업 유형에 따른 해양환경영향평가 개선방안 (Improvement for Marine Environmental Impact Assessment on the Coastal Development Project Type)

  • 김인철;전경암;김귀영;엄기혁;김영태;최보람
    • 해양환경안전학회지
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    • 제20권2호
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    • pp.157-164
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    • 2014
  • 본 연구에서는 2010년부터 2013년까지 4년간 연안개발사업에 따른 일반해역이용협의서 133건을 분석하여 사업유형별 해양환경영향평가 개선방안을 제시하였다. 침식방지사업은 정확한 침식원인 분석이 선행되어야 하고 주변 해안의 상태와 구조물 설치 시 추가적인 문제점 발생 가능성에 대해 정확히 예측해야 하며, 사업시행 후 사후모니터링을 통한 침식방지 효과를 입증하는 체계적인 시스템이 마련되어야 한다. 호안 및 해안도로 건설사업의 경우, 무분별한 해안도로의 건설은 지양하고 구조물 안정성을 충분히 검토하여야 하며 반사파 증가에 따른 해안침식의 문제점을 함께 검토해야 한다. 그리고 침수방지 사업은 평가항목에 파랑을 선정할 필요가 있고 이상 파랑의 영향을 함께 고려해야 한다. 친수공간 조성사업은 종합적이고 체계적인 공간계획이 수립되어야 하고, 자연환경을 최대한 보전하고 자연과 융화될 수 있는 개발이 될 수 있도록 검토를 강화해야 할 것이다. 아울러 연안개발사업과 관련하여 많은 문제점이 내재되어있어 법 제도적 측면에서의 지원과 함께 추후 해역별, 사업별 특성이 다양하게 반영된 추가적인 연구가 필요할 것으로 판단된다.

"에너지.환경 탐구대회" 초등팀 탐구 활동 소개 및 보고서에 진술된 환경 가치 분석 (An Analysis of Environmental Values Written in Energy.Environment Inquiry Activity Contest Reports of Elementary School Teams)

  • 구수정;김영신;정완호
    • 한국환경교육학회지:환경교육
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    • 제13권1호
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    • pp.75-86
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    • 2000
  • The purpose of this study is to analyze the content of environmental inquiry activities and values of elementary school students written in their reports of the Energy Environment Inquiry Activity Contest which is a unit contest of the Youth Science Festival held annually in Korea and get some ideas for the valuable way of Korean environmental education. 10 teams' reports were gathered and the locality, class study area, inquiry theme, inquiry method and values were analyzed and introduced as case studies to get some insights to teach elementary school students environmental values through inquiry activities of science subject approach. Each teams set various inquiry themes in the content domain of energy resources and earth environment conservation focusing on each team's geographical characteristics and occurring environmental problems in their local areas. There were 16 sentences representing technocentrism and 12 sentences representing ecocentrism. 5 of 10 teams showed both of technocentrism and ecocentrism in their reports. But their was only scientific knowledge without any environmental values in one team's report. Inquiry activity is a good teaching-learning method to develop environmental literacy. There should be environmental values involved as far as it is the environmental inquiry activities using environmental subject matter. The result of this study proposes that environmental educators should actively intervene for inquirers to set a stage in the whole process to search for an alternative to solve environmental problems involved in their project activities. The reason is because the environmental education in the elementary school is established to operate by the infusion way into various subjects already existed in the Korean curriculum.

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Numerical simulations of deep penetration problems using the material point method

  • Lorenzo, R.;da Cunha, Renato P.;Cordao Neto, Manoel P.;Nairn, John A.
    • Geomechanics and Engineering
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    • 제11권1호
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    • pp.59-76
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    • 2016
  • Penetration problems in geomechanics are common. Usually the soil is heavily disturbed around the penetrating bodies and large deformations and distortions can occur. The simulation of the installation of displacement piles is a good example of the interest of these types of problems for geomechanics. In this paper the Material Point Method is used to overcome the difficulties associated with the simulations of problems involving large deformation and full displacement type penetration. Recent modifications of the Material Point Method known as Generalized Interpolation Material Point and the Convected Particle Domain Interpolation are also used and evaluated in some of the examples. Herein a footing submitted to large settlements is presented and simulated, together with the processes associated to a driven pile under undrained conditions. The displacements of the soil surrounding the pile are compared with those obtained by the Small Strain Path Method. In addition, the Modified Cam Clay model is implemented in a code of MPM and used to simulate the process of driving a pile in dry sand. Good and rather encouraging agreement is found between compared data.