• 한국환경교육학회지:환경교육
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• 제12권1호
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• pp.76-98
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• 1999

As an attempt to systematize the environmental education in schools according to the 7th curriculum, this study extracted the contents of environmental education to which Social Studies Education can approach in the social studies lessons. This study analyzed these contents from the goals of environmental education and from its contents and, as a result, it found out the following: (1) in the aspect of ‘knowledge’ and ‘skills’, Social Studies and the goals of environmental education have direct relations with each other, and (2) Social Studies can be taught in the aspect of ‘environmental pollution’, ‘environmental preservation ＆ alternative’ ,‘human environment’, ‘population’, ‘inderstrialization & urbanization, ‘resources’, and so on. By utilizing various teaching and learning methods of Socal studies education, We can approach the goals of environmental education: ‘attitudes’ and ‘participation’. We think that ‘problem solving ability’ is main teaching method” in Socal Studies.

• 농촌지도와개발
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• 제4권2호
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• pp.407-413
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• 1997

Recently, the community developmental enthusiasm is activated and emerged with the varied developmental plans since the localization was implemented in Korea. But the anxious view of the environmental problems has been gradually heightened in the Environmentally Sound and Sustainable Developmental(ESSD). The local autonomy should listen to the public opinions because the people's anti-developmental movement could obstruct the development project in the community level. The Environment-friendly Rural Development Plan(EFRDP) pursues the development and the environmental preservation of the community at the same time. Therefore EFRDP reflects the local developmental intention and consideration of environmental preservation at the step of planning. Throughout the planning process the opinions of development and environmental preservation should be adjusted, the people's planning ability can be enhanced, and new creative alternative ideas will come out at times.

• 한국표면공학회지
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• 제32권3호
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• pp.253-256
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• 1999

Wet plating has been initiated and developed as a major surface finishing technology as of the long customized and highly productive process until now. As the external compression by virtue of the environmental preservation becomes stricter, there has been new move to adapt dry plating line instead of conventional wet plating one in domestic surface finishing industry. Dry plating, so-called, plasma surface technology has been developed in semiconducting industry and becomes a key technology to be useful as an alternative to wet plating in surface finishing industry. The historical progress of domestic surface finishing industry was outlined with the background on the adaptation of three dry plating processes-plasma spraying, plasma nitriding and ion plating. The present status of domestic industrial activity was covered on major alternative to wet plating.

• Applied Microscopy
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• 제50권
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• pp.10.1-10.6
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• 2020

Plant specimens for scanning electron microscopy (SEM) are commonly treated using standard protocols. Conventional fixatives consist of toxic chemicals such as glutaraldehyde, paraformaldehyde, and osmium tetroxide. In 1996, methanol fixation was reported as a rapid alternative to the standard protocols. If specimens are immersed in methanol for 30 s or longer and critical-point dried, they appear to be comparable in preservation quality to those treated with the chemical fixatives. A modified version that consists of methanol fixation and ethanol dehydration was effective at preserving the tissue morphology and dimensions. These solvent-based fixation and dehydration protocols are regarded as rapid and simple alternatives to standard protocols for SEM of plants.

• Journal of Plant Biotechnology
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• 제34권2호
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• pp.103-109
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• 2007

The increasing industrialization of the world has led to precipitous rise for the demand of petroleum-based fuels. The world is presently confronted with the twin crises of fossil fuel depletion and environmental pollution. The search for alternative fuels, which promise a harmonious correlation with sustainable development, energy conservation, efficiency and environmental preservation, has become highly pronounced in the present. Bioenergy is playing an increasingly important role as an alternative and renewable source of energy. Use of Bioenergy has several potential environmental advantages. The most important perhaps is reduction in life cycle greenhouse gases emissions relatives petroleum fuels, since bioenergy is derived from plants which convert Carbon dioxide ($CO_{2}$) into Carbohydrates in their growth. Bioenergy includes solid biomass, biomas and liquid bio-fuels which are fuels derived from crop plants, and include biomass that's directly burned. The two most important bio liquid fuels today are bioethanol from fermenting grain, grass, straw or wood, and biodiesel from plant seed oil.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 2001년도 가을 학술발표회 논문집
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• pp.99-104
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• 2001

Slag product has the possibility as alternative aggregate and sand under the circumstance of natural resource shortage. Copper slag is the by-product produced in process of copper industry. Recycling the slag in construction industry could give positive effects on the environmental preservation. This study presents that the fundamental properties of high strength concrete which used copper slag as alternative sand. Testing factors are concrete's slump, bleeding, air contents and compressive strength. The results of this study are as follows. (1) Mixing of W/C 30%, substitution rate 25% shows the best slump. As substitution rates are going up, concrete slump is uprising and air contents are downsizing. (2) The bleeding of concrete becomes more serious as substitution rates are going up. (3) The best compressive strength of copper slag concrete is achieved in mixing of W/C 30%, substitution rate 25%.

• 한국환경교육학회지:환경교육
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• 제13권1호
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• pp.96-110
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• 2000

There are some considerations that must take into account in environmental education in the aspect of the difference of value clarification between ecological and economic viewpoint on environment. Although we have a tendency to think that the differences are unavoidable because we are on the economy-oriented life, we should realize that such emphasis to economics comes from the differences between ecological and economic view point on environment. We have lived and thought on the basis of Economic view point, especially, environmental policies are established on the basis of economic efficiency. But this tendency has become great obstacles to environmental ethics education because it dilutes the reason of natural preservation and removes the fundamental reasons why the nature should be preserved. Therefore it is very difficult to balance the value clarification between economic and ecological viewpoint in actual life. Furthermore, environmental problems can not be solved only through economic approach, because of their limits to belief solving from providing incentives. It is very important to make people have a way of thinking which economic activities and debates can be made on the ecological resources. Therefore we can compare this relation to CHAE-YONG founded on Buddism and Chinese philosophy. CHAE means essence of every reaction in the cosmos, and YONG means the reaction itself. CHAE is regarded to ecological resources, and YONG is thought to every-day economic activities. YONG is not able to existwithout CHAE. If economic activities can be done on the basic limit of ecological resources, we can build suitable environment to living condition. We call this appropriate environment as SANG. In other words, the connection of CHAE-YONG-SANG means ecological resources - economic activities - sustainable environment. It is realized that the relations between economics and ecology should be equalized for the balanced environmental ethics education. This study tries to get out of unbalanced relations between economics and ecology from the persepectives of CHAE-YONG-SANG and it was done to suggest an alternative environmental ethics education program

• 농촌계획
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• 제16권2호
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• pp.11-19
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• 2010

Pro-environmental life styles, foundations of a collective civilization and preservation of our tradition at rural communities hold a great public profit value, of which importance has been strongly emphasized during last decade. Here, the environmental color is one of the most influential elements that determine the image of the rural landscape. Whenever an alternative color element is introduced to rural town, it is very important to examine its effect on the existing environmental color. Typically, a preference-surveying method has been used to evaluate the suitability of such environmental color balance. However, we note that the reliability of this method is limited by the subjectivity of a respondent. And thus, it is highly desirable to develop a more objective method. We propose a feasibility study for using an aesthetic-measure to evaluate the environmental color of a rural town. In this work, we looked into the validity of our approach by comparing its result with that of the preference-based-method as a way to determine the environmental color. Our study is based on 20 photo images from Ansung-city Yangsung-myeon Donghang 2ri Kyo-dong town in Kyongki Province.

• 한국환경복원기술학회지
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• 제16권6호
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• pp.31-48
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• 2013

South Korea had encouraged farmers to breed bear to increase farmer's income since 1981. Currently farmers breed over thousand number of bears, however but the policy measures for breeding bears is expected to conflict the main stream of bear conservation due to South Korea belong to the member of CITES, which categorizes and manages bears under Wild Fauna and Flora Protection Act. Government needs to establish a special law containg the win-win relief strategy not only for farmers of breeding bears, but international corresponding policy. So, we have reviewed the domestic status and international trends on breeding bears, and suggest the alternative strategies of the policy such as a bear park, a bear village, use of species recovery center, use of a preservation organization. This policy should be accompanied with more detailed fact analysis, management agency, well equipped welfare facility and financial preparation for proper management of breeding bears against changing international trends on wildlife conservation.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2003년도 학술대회지
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• pp.465-468
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• 2003

전 세계적으로 지구온난화현상, 수질오염 등의 환경문제에 대한 관심이 높아지고 있다. 이러한 환경문제에 대한 인식으로 환경유해요소들에 대한 활발한 연구로 선진국에서는 이미 법적인 제도를 마련하는 등 환경보존 및 유해요소 저감방안에 대한 연구가 진행되고 있다. 건설산업 분야에서도 환경친화성에 대한 정량적 자료로 LCA분석 내용을 제시하도록 ISO에서 규정하고 있다. 국내건설업의 경우 LCA 기법에 대한 연구가 국가적 차원에서 진행되고 있다. 본 연구에서는 LCA분석을 통하여 계획안에 대한 타당성을 확인하고자 하였다. 자재생산단계, 시공단계, 유지관리단계, 폐기처분단계에 대하여 환경영향비용을 고려한 생애주기비용 통합분석결과, 계획안 74,819,560,776원, 대안 78,979,469,602원으로 계획안이 대안에 비해 4.159,908,826원이 절감되는 것으로 분석되었다.