• Title/Summary/Keyword: Environment Impact

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Environmental Impact Assessment of the Carbody of a Electric Motor Unit(EMU) Using Simplified Life Cycle Assessment(S-LCA) (간략화 전과정 평가(S-LCA) 기법을 이용한 전동차 구체의 환경성 평가)

  • Lee Jae-Young;Mok Jai-Kyun;Jeong In-Tae;Kim Yong-Ki
    • Journal of the Korean Society for Railway
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    • v.8 no.6 s.31
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    • pp.520-524
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    • 2005
  • It is consequential to reduce the environmental impact of a product for sustainable development in 21st Century. In the field of transportation, especially, the technological market concerned about reduction and assessment of greenhouse gas emission is expected to be extended. The LCA gas been esteemed and utilized as a realistic alternative greenhouse gas emission is expected to be extended. The LCA has been esteemed and utilized as a realistic alternative to improve the environment by the assessment of environmental impacts. In this study, simplified life cycle assessment(S-LCA), was performed to analyze the environmental impacts quantitatively, which were produced through the life cycle of a electric motor unit(EMU). The object of the present work is rth investigate main parameters of environmental impacts and to establish the plans to improve the environment impact of EMU. As a result of quantitative assessment for environmental impact and manufacturing, the EMU carbody made of SUS showed acidification(AD) and marine water aquatic ecotoxicity(MAET) the most, while that made of Mild showed high impact of global warning(GW) and abiotic resources depletion(ARD). For the SUS EMU, the high AD and MAET impact is occurred by the discharged pollutants during acid-washing process. Also, high value of GW and ARD for Mild EMU is resulted from the consumption of iron ore, coal and crude oil during manufacturing. Therefore, the environment impact of carbody would be decreased by enhancing of energy efficiency and the lightening the weight of it.

Methodology of Life Cycle Assessment(LCA) for Environmental Impact Assessment of Winter Rapeseed in Double-cropping System with Rice (겨울 유채의 환경성 평가를 위한 전과정평가(LCA) 방법론)

  • Nam, Jae-Jak;Ok, Yong-Sik;Choi, Bong-Su;Lim, Song-Tak;Jung, Yong-Su;Jang, Young-Seok;Yang, Jae-E.
    • Korean Journal of Environmental Agriculture
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    • v.27 no.2
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    • pp.205-210
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    • 2008
  • Life cycle assessment(LCA) is acknowledged as a valuable tool to quantify the environment impact of agricultural practice as well as final product(biodiesel) considering whole life cycle of the target product. As a preliminary research of LCA study for rapeseed(Brassica napus L.) biodiesel, the methodological issues which have to be regarded with high priority were dealt with. No life cycle inventory(LCI) based on local data are currently available for LCA of rapeseed cultivation, crushing, and conversion to rapeseed methyl ester(RME) in Korea. In this paper, the life cycle of rapeseed and methodological factors which have to be measured for building LCI of each process are provided and discussed, which are including seed, fertilizer, energy use in rapeseed cultivation environment; and crushing, RME conversion, and transportation in biodiesel production.

Factors Associated with Middle Managers' Work Motivation: Evidence from SMEs in Vietnam

  • NGUYEN, Huong Thanh;NGUYEN, Nguyen Danh;TRAN, Binh Van
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.1009-1019
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    • 2020
  • This study presents an exploratory investigation of SMEs in Vietnam to understand the impact of personal-level factors on middle managers' work motivation and the moderating role of work environment. A survey of 450 middle managers (MMs) in 150 Hanoi's SMEs was conducted. The findings of this research showed a significant positive impact of Achievement (ACHV), Recognition (RECOG), and Responsibility (RESP) on work motivation of MMs under the investigation. Furthermore, the result indicated that the work environment affects the relationship between personal-level factors and work motivation of participants. Consequently, both work environment improvement and strategies related to personal-level factors need to be taken into consideration. Especially, Recognition and transparency in Responsibility are appreciated in organizations with a low level of work environment satisfaction. However, there were no indications that Participation (PAR) and Communication (CMM) have a considerable impact on work motivation of respondents, being neither low level nor high level of work environment satisfaction. Based on the findings, recommendations are suggested for Vietnam's SMEs to improve work motivation of MMs, by (i) developing standards with emphasis on their achievement, (ii) paying attention to organizational culture focusing on the responsibility of this managerial level, and (iii) building an adequate incentive system, especially non-financial incentives.

Study on the Improvement of the Environmental Assessment system -Comparison of Environmental Impact Assessment System among Different Countries- (환경평가제도개선에 관한 연구 -국내외 환경평가제도의 비교 고찰-)

  • Kim, Im-Soon;Song, Chul-Woo;Han, Sang-Wook;Chang, Sung-Oun;Shin, Kang-Soo;Yoo, Heon-Seok;Jung, Jong-Gwan
    • Journal of Environmental Impact Assessment
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    • v.20 no.3
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    • pp.411-424
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    • 2011
  • Over the past three decades, Korea has undertaken a series of reforms to improve development policy, plans and programs, including measures to mainstream the environment across all major sectors. Despite of these efforts, there has been still the lack of capacity to fully assess the environmental impacts as well as sustainable implications of development projects and strategies. At the level of regional and sectoral development plans, the development of strategic environmental assessment SEA systems continues to remain at a relatively early stage in the region with fewer examples of fully operational processes or effective practice. This study shows a further information to our understanding of the EIA and SEA systems and their implementation in Korea. It affords a number of insights into strengths and weaknesses of the current action in different countries, and identifies an agenda of needs and options for capacity building for implementing the EIA enactment.

Characteristics of Meteorological Environment Variation Before and After Construction of Nak-dong River Estuary Barrage (낙동강 하구둑 건설 전·후의 기상환경 변화 특성)

  • Jeon, Byung-Il
    • Journal of Environmental Impact Assessment
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    • v.14 no.3
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    • pp.135-145
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    • 2005
  • This study was conducted to investigate the characteristics of meteorological environment variation before and after construction of Nak-dong river estuary barrage. We used meteorological data(air temperature, precipitation, relative humidity, visibility, wind) at Gimhae airport meteorological station. The construction of river estuary barrage can change climate at the neighboring districts and influence human's health and vegetable. The construction of Nakdong river estuary barrage brought rise of temperature, decrease of relative humidity and increase of poor visibility frequency.

Toward a better environment impact assessment on dam construction (댐건설의 환경영향평가 현황과 바람직한 발전방향)

  • 이수재
    • Proceedings of the Korean Society of Environment and Ecology Conference
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    • 2003.10a
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    • pp.55-72
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    • 2003
  • Dam is a barrier constructed to divert, hold water and raise its level for purpose of water supply, irrigation, power generation, flood control, and recreational facilities, etc. Therefore, there are many inevitable environmental impacts on dam construction. We need some better tools to predict the impacts and mitigate measures before and after dam construction. For this purpose I discussed several feasible suggestions and provisions mainly related to environmental impact assessment.

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Ecological Restoration and Environmental Impact Assessment for the Realization of the Central Theme, Preservation, Suggested in the National Anthem of Korea (생태복원과 환경영향평가: "애국가"에 나타난 '보전'의 이념 구현을 중심으로)

  • Kim, Eun-Shik;Hong, Sun-Kee
    • Journal of Environmental Impact Assessment
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    • v.17 no.1
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    • pp.25-45
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    • 2008
  • This review was made to discuss the issues of ecological restoration and environmental impact assessment (EIA) related to the preservation of natural environment, the central theme expressed in the National Anthem of Korea. The authors notice that the key word or the central philosophy contained in the verses of the National Anthem of Korea is the preservation of national land and eternal identity for future generations, which is thought to be pursued through the attainment of ecological sustainability. A conceptual model for the sustainable management of natural ecosystems was suggested for the efficient utilization and the preservation of them, whose activities should be promoted by those of conservation and restoration instead of destructive development and negligence, respectively. Here, the preservation of natural environment can be directly pursued through the restoration of degraded ecosystems and landscapes and the utilization of natural environment can be directly pursued through the conservation of natural resources and wise management of natural ecosystems and landscapes. After reviewing the major characteristics and activities of the restoration of degraded ecosystems and landscapes, discussion was further extended to points for the promotion of the EIA activities. To point out some of them, it is needed for the public to better understand the nature of sustainable management of natural environment, for the society to put extensive energy and resources in the restoration of degraded ecosystems and landscapes, and for the government to install higher levels of ministries than that of the Ministry of Environment in dealing with the issues related to the 'preservation' of national land, people, culture and the security of the sustainability for future generations, where EIA and strategic environment assessment (SEA) can directly contribute to the sustainability of the country and future generations.