• Title/Summary/Keyword: environmental crisis

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A Study on the Heat Accumulation Performance of Ceramic Honeycomb located on the Flat Burner (Flat Burner 위에 설치된 Ceramic Honeycomb의 축열성능 연구)

  • Park, Jae-Min;Heo, Su-Bin;Yoon, Bong-Seock;Lee, Do-Hyung
    • Journal of Advanced Marine Engineering and Technology
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    • v.36 no.2
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    • pp.244-249
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    • 2012
  • Recently energy crisis and environmental pollution using fossil fuel became social issue. The Fuel Cell, one of the new and renewable energy has great advantage for the former mentioned problems. The PEM Fuel Cell needs highly purified hydrogen for fuel, in many cases CH4 was reformed to H2 basically using steam reforming. The purpose of this paper is to understand the probability of ceramic honeycomb to apply the combustor of STR. We tested the heat accumulation performance of ceramic honeycomb by change of excess air ratio. The results were suitable for our purpose and also these results can be used to make high temperature air at mild combustion field.

Study on the Fueling Economic Feasibility of Plug-in Hybrid Electric Vehicle (플러그인 하이브리드 전기자동차의 연료 경제성에 관한 연구)

  • Roh, Chul-Woo;Kim, Min-Soo
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.33 no.4
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    • pp.255-263
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    • 2009
  • The most concerning issue of these days is the energy crisis caused by increasing threat of dependence on imported oil and volatile market trend. Under these circumstances, the PHEV(plug-in hybrid electric vehicle) is drawing attention for the next generation's car which could give a chance to decrease the dependence on imported oil and reduce the environmental impact of vehicle. The fueling cost of PHEV, one of the core factor of decision about buying car, should be calculated in the circumstances of Korea to make sure that PHEV has competitive power in real market. The fuel cost saving of PHEV versus CV(conventional vehicle) is simulated and discussed in the condition of increasing gasoline cost, electricity rate, and city-gas rate. In conclusion, the PHEV60-FS shows the best economic feasibility when gasoline price goes up. The PHEV20 has the most stable economic feasibility as electricity rate increases. The fuel cell cogeneration system for RPG could be an alternative for charger of PHEV in the near future.

A Study on the Creation of Originality in the interior Design of Korea (실내디자인의 새로운 방안모색에 관한 소고-한국적 실내디자인의 독창성 창출에 관한 내용-)

  • 권영성;황세민
    • Archives of design research
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    • v.5 no.1
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    • pp.37-44
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    • 1992
  • Today, the art and the architecture face up to the problem of loss of direction. So, the derection of post have been lost. This phenomina cause the second loss of direction, because the mode of pre-modernism is underestimated. After all, the mode and philosophy of after-modernism face up to the new crisis of derection. Present artists, archtectures and designers have to acnieve new trial and study for estimation of aestetics and directions. Ultimately, constant exercise and study of philosophy, morpholophy, morphology, current mode and new materials is necessary to search a methodology. This all have to be accomplished by the clear philosophy. The original identity is formed in environmental basis. So, first, architectures, designers, and artist understand native identity, second, we sho have acadenical and practical faculties impose significance. In case of Europe, the change of mode have led paradigm of culture. The great change of social culture have come out the wave of revolution that cross in design, architecture and art. 1920's of modernism evolve 1960's completion. In the change of life style, functionalism have evolved postmodernnism. But, in this change we do not suggest the new derection that form concrete idea and sympathy. This phenomina appear in the end of a centry, and nowaday is that day. This trends effect on artists, architectures, and designers, and design and will be changed. Finally, we need to study of concrete and new direction in this circumstance.

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Arcology as a Sustainable Architectural Theory (아르콜로지(Arcology)에 나타난 친환경 건축이론에 관한 연구)

  • Hwangbo, A.B.
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.14 no.12
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    • pp.6514-6520
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    • 2013
  • Arcology (architecture plus ecology) is a new term that was coined by the visionary architect, Paolo Soleri (1919-2013), and aims to provide a useful solution for a sustainable dense urban environment. Inspired by the environmental and humanistic crisis in the 1970s, he continuously promoted ideal future city forms with arcology in mind. Arcosanti is one of the many arcologies he proposed and is the only one that was constructed. This paper constructs arcology as a sustainable architectural theory with Arcosanti as a verifiable case study. Despite the fact that arcosanti is only partially built, and far from completion, it still possesses some of the values that Soleri's vision may offer to future generations.

A Study on the Outsourcing of the Academic Library Working in Japan (일본의 대학도서관 업무의 아웃소싱에 관한 연구)

  • 김영귀
    • Journal of Korean Library and Information Science Society
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    • v.35 no.2
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    • pp.47-71
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    • 2004
  • The purpose of this study is to investigate the present status of outsourcing of the academic library working in Jagan and to suggest the alternatives of the problems facing with conversing the National University to the Corporation(named the government authority Corporation). The Corporation is implemented because of government financial crisis and decreasing of student candidates. As the result, the university autonomy will be enlarged, but the government financial assistance will be decreased. So outsourcing will be increased in the reason of the cutting of working expenses. For facing to the that environmental change, academic library should make preparations of their future.

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Policy Implementation Process of Korean Government's Public Diplomacy on Climate Change

  • Choi, Ga Young;Song, Jaeryoung;Lee, Eunmi
    • Asian Journal of Innovation and Policy
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    • v.9 no.1
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    • pp.1-11
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    • 2020
  • In 2015, the State Council of South Korea finalized its goal to reduce greenhouse gas emissions by "37% from the business-as-usual (BAU) level" by 2030 across all the economic sectors. Of that reduction, 4.5% will be achieved overseas by leveraging Emission Trading Systems (ETS) aided by international cooperation. In line with this, considering both the demand for and supply of the carbon market increased after the Paris agreement, the importance of public diplomacy in negotiating climate change actions also rose. This study aimed to analyze the impact of international discussions such as the United Nations Framework Convention on Climate Change (UNFCCC) on domestic policies and the types of public diplomatic climate change policies pursued by different government agencies, and draw implications from them. This study attempted to find implications from the Korean government's public diplomacy on climate change for developing countries. Lessons learned regarding Korea's public diplomacy would provide a practical guidance to the Asian developing countries, which are suffering from environmental crisis at a phase of rapid economic growth.

Influence of the Number of Runner Vanes on Tubular-type Hydroturbine (소형 튜블러수차의 러너베인 깃 수의 영향)

  • Nam, Sang-Hyun;Kim, You-Taek;Choi, Young-Do;Lee, Young-Ho
    • Journal of Advanced Marine Engineering and Technology
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    • v.32 no.6
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    • pp.908-914
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    • 2008
  • The world is facing a serious energy problem which destroying the environment. In addition, fossil fuel such as oil and coal that caused global warming and the environmental problems due to acid rain had been gradually exhausted. To solve this problem that has crisis of energy, it is necessary time and effort for research and development of renewable energy in the future. As alternative energy, small hydropower generation which has output of less or equal to 100kW is attracting considerable attention. This is because of its small, simple, renewable, and large amount of energy resources. By using a small hydropower generator of which main concept is based on using the different water pressure levels in pipe lines, energy which was initially wasted by use reducing of a valve at the end of the pipeline, is collected by turbine in the small hydropower generator. In this study, we investigated the influence of the number of runner vanes on the characteristics of tubular-type hydroturbine.

The Evolving Roles of the Public and Private Sectors in Korea's Public Rental Housing Supply

  • Kim, Yoon-jung;Park, Hye Jung
    • Architectural research
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    • v.22 no.3
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    • pp.85-95
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    • 2020
  • While there has been a substantial amount of studies on public rental housing of Korea, most have focused on housing policy changes, international comparisons, and current characteristics and future prospects. This article aims to examine the evolving roles of the national and local governments, and the private sector in provision of Korea's public rental housing. The findings suggest that one, although the wave of neoliberalism and financial crisis have prompted the national government to reduce its role and to encourage engagement of other actors by utilizing incentivizing tools, it has continued to assume a central position in formulating and implementing housing supply plans. Two, local governments have played a marginal role throughout the history of public rental housing supply, although they have expanded their participation through redevelopment projects and utilization of existing housings. Three, private sector actors have expanded their role to delivering public benefits of making housing available for a wider range of populace leveraging various incentives that make projects financially more feasible. The study poses a question on how responsibilities and risks can appropriately be allocated among three key actors to achieve housing welfare going forward.

Ecological Poetics of Light and Sinmyeong A Study on Park Dujin′s Nature Poems (빛과 신명의 생태시학 -박두진의 자연시 연구-)

  • 이영섭
    • Lingua Humanitatis
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    • v.2 no.1
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    • pp.131-151
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    • 2002
  • Park Dujin has written the nature poems through his keen sense for light and the emotion of Sinmyeong(the excited and enthusiastic mind) from his early poetry to his later poetry. His poetic emotions, with the periods of his composition of poems, are expressed in the juxtaposition of the waiting for something or the existential agony with the devout faith. But he has pursued tile monistic nature through the emotion of light and Sinmeoung. Therefore all his poems are characterized as the nature poems which expose the artistic wholeness transcending the ideology and spirit of his times. Up to the present, Korean ecological poems have been absorbed in examining and criticizing the crisis for the environmental pollution and the destruction of ecosystem. Therefore Korean ecological poems could not get out of the dualistic ecological consciousness of the opposing environment confronting between man and nature. The ecological peculiarity in Park Dujin's nature poems is not the level of the man-oriented environment or bioecology but the monistic nature which man and nature are unified. This fact can be said to be caused by the approach to the objects on the basis of the sense for light and the emotion of Sinmyeong which perceive the transcendental nature.

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Study on the Evaluation of Regional Building Energy Efficiency Rating According to the Insulation Performance of Double Skin Window in Apartment Houses Expanded Balcony (발코니 확장형 공동주택의 이중외피 창호 열성능에 따른 지역별 건축물에너지 효율등급 평가)

  • Jang, Cheol-Yong;Ahn, Byung-Lip;Kim, Chi-Hoon;Hong, Won-Hwa
    • Journal of the Korean Solar Energy Society
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    • v.30 no.5
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    • pp.32-37
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    • 2010
  • In order to handle the crisis about energy-environment problem, it is necessary to develop the future-oriented and innovative energy technology in architecture area. So the development of new technology for energy saving and alternative energy use has been spurred in this area. Double skin window system, which is an active covering to respond to the exterior change of the environment, is the skill that can reduce the indoor cooling and heating load and the environmental architecture can be realized. This study works out U-value of windows using the window-simulation program with the development and study of the double skin. In addition, the effect of the double skin insulation on the efficiency rating has been analyzed, applying to the certification system of the building energy efficiency rating which has implemented.