• Title/Summary/Keyword: Environmental issue

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Global Environmental Problem, The conflict between Development and Preservation (지구환경문제, 개발과 보전의 갈등)

  • Lee Kang Kun
    • Journal of the Korean Professional Engineers Association
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    • v.37 no.6
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    • pp.29-36
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    • 2004
  • Human being have destroyed environment through rapid industrialization, so that the world is increasingly faced with golbal environmental problem such as destruction of ozone layer, global warming., acid rain, decertification and we are heading toward impending disaster of the earth. Especially, recent environmental pollution of China from rapid economic development threatens neighboring Korea and Japan. Regional development are necessary for promotion of national prosperity, but theses regional developments must have brought about environmental and preservation. Actually there are so many conflict cases; Saemankum reclamation project, construction of nuclear waste storage facility, dam construction of China etc. Here, harmony and balance between development and preservation are needed to solve these great crux. Under theses condition, the concept of ESSD(Environmentally Sound and Sustainable Development) emerged as a global issue. And staring point to solve present environmental problems is to perceive the truth that we have inherited only one earth and hence owe a debt to preserve its environment for the benefit of the future generations.

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Environmental Conservation and Wood Utilization (환경보호와 목재의 이용)

  • Jang, Sang-Sik
    • Journal of the Korean Wood Science and Technology
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    • v.22 no.3
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    • pp.51-58
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    • 1994
  • Environmental conservation has become one of the greatest concerns of all the people in the world. This issue is related to wood utilization in two major view points such as carbon dioxide emitted by the use of manufacturing energy and absorbed during the growth of trees. Wood construction materials require less manufacturing energy, which, in turn, means less carbon dioxide emission. In addition, wood keeps absorbed carbon in itself as far as it is not burnt. Therefore, wood is environmentally superior to other materials in terms of potential effects on atmospheric carbon dioxide. As examples of the environmental effect of wood utilization, the following two results were obtained: 1) If wood construction becomes popular in Korea as in Japan, more than 24% of carbon dioxide emission during construction of residential housings can be reduced: and 2) If aluminum windows are substituted by wood windows, more than 19% of carbon dioxide emission can be reduced. If the principle of "cut and plant" is kept well, wood is the best construction material for environmental protection as well as human residence.

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Database Modeling for Environmental Product Life Cycle Management (환경영향을 고려한 제품 전 주기 관리 데이터 모델링)

  • 황오현;강무진
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2001.04a
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    • pp.358-362
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    • 2001
  • Environmental Product Life Cycle Management is an activity for defining and describing the product, process of activity environmentally. The activity involves the full life cycle stages of the product; evaluating environmental releases at each stage, determining the aggregate and specific impacts of the releases, developing opportunities to effect environmental improvements. This paper presents a methodological approach for database modeling to build Product Life Cycle Management system and show a set of database modeling. Additionally, a key issue for database is the quality of the provided information.

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Comparison of Environmental Load per Constructional Methods (Focus on Reinforced Concrete Structures and Steel-Frame Structures) (구조공법별 환경부하 산출·비교분석에 관한 연구 (철근콘크리트구조와 철골구조를 중심으로))

  • Moon, Joon-Ho;Lee, Hyun-Joo;Jung, Young-Chul;Kim, Tae-Hee;Kim, Kwang-Hee
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.05a
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    • pp.193-195
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    • 2011
  • Nowadays, climatic environment change has become a major issue in the world. This causes major emissions of carbon dioxide industries steel industry, thermal power industry, cement industry is essential in the reduction of carbon dioxide, which is based on total carbon dioxide emissions account for most of the construction industry in an effort to minimize the environmental load is needed. accordingly, through case studies, It can be induce the selection to minimize environmental load by comparing the output of quantitative energy consumption and carbon dioxide emissions per constructional methods. As a result of this study, RC Structure was less environmental load than SC structure.

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Environmental footprint impacts of nuclear energy consumption: The role of environmental technology and globalization in ten largest ecological footprint countries

  • Sadiq, Muhammad;Wen, Fenghua;Dagestani, Abd Alwahed
    • Nuclear Engineering and Technology
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    • v.54 no.10
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    • pp.3672-3681
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    • 2022
  • This study investigates the environmental footprint impacts of nuclear energy consumption in the presence of environmental technology and globalization of the ten largest ecological footprint countries from 1990 up to 2017. By considering a set of methods that can help solve the issue of cross-sectional dependence, we employ the Lagrange multiplier bootstrap cointegration method, Driscoll-Kraay standard errors for long-run estimation and feasible generalized least squares (FGLS) and panel-corrected standard errors (PCSE) for robustness. The finding revealed significant negative effects of nuclear energy consumption, environmental-related technology, population density and significant positive effects of globalization and economic growth on ecological footprint. These results are also robust by assessing the long-run impacts of predictors on carbon footprint and CO2 emissions as alternate ecological measures. These conclusions provide the profound significance of nuclear energy consumption for environmentally sustainable development in the top ten ecological footprint countries and serve as an important reference for ecological security for other countries globally.

A Qualitative Approach for using '99 Korean Top Ten Pieces of News of the Environmental Field in the Environmental Issue Education (99년 한국의 10대 환경 뉴스'의 환경 쟁점 수업에의 활용 가능성 고찰)

  • 구수정;김영신;박윤복
    • Hwankyungkyoyuk
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    • v.13 no.2
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    • pp.24-37
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    • 2000
  • Korean civil and environmental organizations had selected and announced ‘The top ten pieces of news in the environmental field of the year’ on Dec. 2, 1999. This study investigated the possibilities that these could be used as subject matters of environmental curriculum and infused into the environmental textbook of secondary schools, referring to documents and internet materials. The top ten pieces of environmental news could be clarified as controversial topics. The locality was analyzed that 2 pieces occurred mainly in a specific area, 4 pieces in several areas and 4 pieces around all over the country. Most of them had the opposing partners as the federal and local governmental vs. civil organizations and people. Each of them could be used as subject matters for 7 to 13 contents domains of the 6th and 7th Korean environmental curriculum. The knowledge of most of them had related counterpart concepts to be infused into the ‘Environmental Science’textbook for the high school students. The results suggested that more concerns and efforts are needed to deal and use these controversial issues as real world problems of Korea in the environmental education practices

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Development of the Environment Writing Workbook to Enhance Environmental Literacy of Elementary School Student (환경 소양 신장을 위한 환경논술 워크북 개발)

  • Lee, Sung-Hee;Jin, Oak-Hwa;Choi, Don-Hyung
    • Hwankyungkyoyuk
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    • v.20 no.4
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    • pp.39-50
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    • 2007
  • The purpose of this paper is to development of the environment writing workbook to enhance environmental literacy of elementary school student. To achieve the purpose, the concrete paper processes are as follows. First, in order to development of the environment writing workbook to enhance environmental literacy, Writing of Environment Club students did various writing activities as an experiment. The environment writing workbook is developed using the students product feedback. Second, the environment writing workbook was used for the 5th graders in the elementary school for 10 weeks to see how the environment writing workbook would enhance the students' environmental literacy. The results of this paper are as follows. It's application was meaningful in the level of p<.05 in point of view of environmental literacy as a result of the pre-post test in the experiment group, who is one of the 5th grade classes in the elementary school. In conclusion, the environment writing workbook is very effective to enhance the seven parts of environmental literacy out of eleven. It is necessary because the environment writing helps to think of environmental issue deeply, learn about regional environmental problems, establish sound environment sense of value, give the opportunities to participate in activities.

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Discourse Analysis of Environmental Regulations and Technological Innovation for Corporate Competitiveness

  • KIM, Won-Seok;CHOI, Choongik
    • East Asian Journal of Business Economics (EAJBE)
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    • v.9 no.4
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    • pp.17-28
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    • 2021
  • Purpose - This article aims to explore the mechanism in which environmental regulations have positive effects on corporate competitiveness through technological innovation. This study also attempts to examine the relationship between environmental regulation and corporate competitiveness from a technological innovation perspective and explore a desirable relationship between those two. Research design, data, and methodology - Discourse analysis and SWOT analysis is used in terms of methodology, and this study is based on literature review theoretically. The methodology is employed in various ways to describe a variety of environmental issues. Result - The results support that technological innovation is able to play a role in coordinating relationship between environmental regulations and corporate competitiveness. The uncertainty and time lag problems innate to technological innovation function as disturbing factors for individual companies to actively increase R&D investment in response to environmental regulations. Environmental regulations may be considered to be working as a factor consolidating corporate competitiveness through technological innovation to respond to the environmental regulations including climate change issue. Conclusion - This study proposes that to achieve two goals of environmental protection and corporate competitiveness consolidation, policy support from various aspects is implied to be required. This implies that environmental regulations and technical innovation must be harmoniously balanced for future corporate success.

Numerical Study of Reduction of Pressure variation and Micro-Pressure Wave for high-speed train in narrow tunnel (협소터널 고속 주행시 압력변동 및 미기압파 저감을 위한 수치해석적 연구)

  • Lee, Jung-Uk;Yun, Su-Hwan;Kwak, Min-Ho;Lee, Dong-Ho;Kwon, Hyeok-Bin;Ko, Tae-Hwan
    • Proceedings of the KSR Conference
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    • 2011.05a
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    • pp.70-77
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    • 2011
  • When a train passes a conventional tunnel at high speed, an environmental noise issue arises by pressure variation and micro-pressure waves at the exit of the tunnel. It is known that this issue can be reduced by using dummy tunnel duct on the tunnel entrance. We studied the variances of micro-pressure waves at the exit of tunnel and pressure variation within the tunnel, by altering surface area and length of the dummy tunnel duct. For analyze this train-tunnel relation problem, axi-simmetric steady compressible flow solver was used. Changing the length of the dummy tunnel duct can adjust pressure variation, changing the surface area of the dummy tunnel duct can adjust volume and pressure variation of the micro-pressure wave. Thus, optimized surface area and length of the dummy tunnel duct can simultaneously reduce environmental noise pollution by micro-pressure wave and issues by the pressure variation.

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Development of Apparatus for Measuring Hydraulic Resistance of Sea Ground Considering Tidal Current Flow (조류 흐름을 고려한 해양지반 수리저항성능 실험기 개발)

  • Kang, Kyoung-O;Jeong, Hyun-Chel;Kim, Young-Sang
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.09a
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    • pp.1366-1369
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    • 2010
  • Along with the increasing need of sea development, the hydraulic stability of seabed structure on a soft seafloor ground is becoming an issue in the course of seaside development recently. However, the movement and hydraulic resistance or hydraulic stability of seafloor ground are mutually coupled with various phenomena, and there has been no clear proof for the issue, which makes it difficult to forecast. Furthermore, most researches are focused on hydraulic variables and the conditions of marine external force, while there have been few researches into the assessment in consideration of the type of a seafloor ground and the geotechnical characteristics. In addition, according to the periodic change of the flow direction, possible changes in hydraulic resistance performance of the seafloor deserves all the recognition. But there is no way to measure the hydraulic unstability of the sea ground due to tidal flow quantitatively. In this study, conventional hydraulic resistance measurement apparatus was improved to consider direction change of the current flow. Various artificial clayey soil specimens were made from Kaolinite and Jumunjin standard sand and hydraulic resistance tests were performed by changing the flow direction to validate the effect of the direction change on the scour of the seafloor.

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