• 제목/요약/키워드: Crisis types

검색결과 197건 처리시간 0.026초

기후변화적응형 도시림 조성을 위한 i-Tree Canopy 기반 의사결정지원 방안 (i-Tree Canopy-based Decision Support Method for Establishing Climate Change Adaptive Urban Forests)

  • 김태한;이재영;송창길;오지은
    • 반도체디스플레이기술학회지
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    • 제23권1호
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    • pp.12-18
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    • 2024
  • The accelerated pace of climate crisis due to continuous industrialization and greenhouse gas emissions necessitates sustainable solutions that simultaneously address mitigation and adaptation to climate change. Naturebased Solutions (NbS) have gained prominence as viable approaches, with Green Infrastructure being a representative NbS. Green Infrastructure involves securing green spaces within urban areas, providing diverse climate adaptation functions such as removal of various air pollutants, carbon sequestration, and isolation. The proliferation of Green Infrastructure is influenced by the quantification of improvement effects related to various projects. To support decision-making by assessing the climate vulnerability of Green Infrastructure, the U.S. Department of Agriculture (USDA) has developed i-Tree Tools. This study proposes a comprehensive evaluation approach for climate change adaptation types by quantifying the climate adaptation performance of urban Green Infrastructure. Using i-Tree Canopy, the analysis focuses on five urban green spaces covering more than 30 hectares, considering the tree ratio relative to the total area. The evaluation encompasses aspects of thermal environment, aquatic environment, and atmospheric environment to assess the overall eco-friendliness in terms of climate change adaptation. The results indicate that an increase in the tree ratio correlates with improved eco-friendliness in terms of thermal, aquatic, and atmospheric environments. In particular, it is necessary to prioritize consideration of the water environment sector in order to realize climate change adaptive green infrastructure, such as increasing green space in urban areas, as it has been confirmed that four out of five target sites are specialized in improving the water environment.

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COMPARATIVE ANALYSIS OF STATION BLACKOUT ACCIDENT PROGRESSION IN TYPICAL PWR, BWR, AND PHWR

  • Park, Soo-Yong;Ahn, Kwang-Il
    • Nuclear Engineering and Technology
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    • 제44권3호
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    • pp.311-322
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    • 2012
  • Since the crisis at the Fukushima plants, severe accident progression during a station blackout accident in nuclear power plants is recognized as a very important area for accident management and emergency planning. The purpose of this study is to investigate the comparative characteristics of anticipated severe accident progression among the three typical types of nuclear reactors. A station blackout scenario, where all off-site power is lost and the diesel generators fail, is simulated as an initiating event of a severe accident sequence. In this study a comparative analysis was performed for typical pressurized water reactor (PWR), boiling water reactor (BWR), and pressurized heavy water reactor (PHWR). The study includes the summarization of design differences that would impact severe accident progressions, thermal hydraulic/severe accident phenomenological analysis during a station blackout initiated-severe accident; and an investigation of the core damage process, both within the reactor vessel before it fails and in the containment afterwards, and the resultant impact on the containment.

Regime Type and Its Impact on the Identity Crisis of Arab Maghreb Union

  • Eziou, Hassan
    • 한국과 국제사회
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    • 제2권2호
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    • pp.131-156
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    • 2018
  • 이 논문은 북아프리카의 '아랍 Maghreb 연합'(AMU) 지역조직의 체제형태가 정체성에 어떻게 영향을 미치는가에 초점을 맞추어 지역주의와 지역조직에 접근하고 재고하기 위한 시도이다. 이 논문의 초점은 지역주의를 연구하는 비전통적인 방법으로서 국내 정치의 중요성에 대해 다룰 것이다. 그리고 지역주의에 대한 많은 연구들과 달리, 이 논문은, 일반적으로 보안이나 경제에 오래된 지역주의 패러다임의 결과로 초점을 맞추는 현실주의자들과 자유주의자들이 강조한 것과는 달리, 이 논문은 지역주의를 이해하기 위한 지침으로 국내 정치를 강조할 것이다.

도서관의 TQM 적용에 관한 연구 (On the a n.0, pplication of TQM to libraries)

  • 최상기
    • 한국도서관정보학회지
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    • 제27권
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    • pp.337-367
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    • 1997
  • This study examined the definitions and characteristics of TQM, procedures, problems and benefits of TQM and investigated the cases in U.S.A. and U.K. in a n.0, pplying TQM to libraries. It is necessary that libraries and information centers should a n.0, pply TQM for management innovation in order to overcome present and future crisis. As a result of study, there are three suggestions as follows. First, To be developed the TQM model for various types of libraries by national or library world. Second, To conduct TQM successfully in libraries and information centers, it is necessary to comprising the elements as follows. 1) Vision, committment and leadership of top management 2) Change of library's organizational culture 3) Learning and training of organizational members 4) Interests and participation of organizational members 5) Empowering and respecting people 6) Rewards for performance and accomplishments 7) Benchmarking 8) Measurement of performance and benefits. Third, TQM activities in libraries are developed into quality movement.

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심장외 도관을 사용하지 않는 동맥간의 완전교정;6례 보고 (Anatomic Correction of Truncus Arteriosus without a Extracardiac Conduit - Report of 6 cases -)

  • 윤태진;김용진
    • Journal of Chest Surgery
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    • 제25권12호
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    • pp.1448-1454
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    • 1992
  • Between July, 1990 and July, 1992, 6 male patients of truncus arteriosus, whose age ranged from 2 months to 18 months, underwent total surgical correction without a extracardiac conduit. Their anatomic types were type I in 3, type II in 2 and III, in one by the Collett-Edwards classification. Surgical techniques were similar to the first description by Lecompte except for the fact that distal pulmonary arterial stumps were approximated to ventriculotomy site without Lecompte maneuver in all cases. Also in all cases, mon-ocusps were placed using glutaraldehyde fixed autologous pericardial patch directly in right ventricular outflow tract. Three patients died postoperatively and the causes of death were myocardial failure, pulmonary hypertensive crisis and pulmonary complication due to progressive pulmonary vascualr obstructive disease respectively. The three survivors have been followed up for 6~10 months with good functional results.

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비모수적 방법을 이용한 도시농업의 다원적 기능 가치평가 (Valuation of Multi-functionality of Urban Agriculture using Turnbull Model)

  • 허주녕;김태곤
    • 한국유기농업학회지
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    • 제20권4호
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    • pp.431-445
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    • 2012
  • In this regard, urban agriculture is developing into a variety of shapes. Urban agriculture includes various types, such as industrial agriculture, experience agriculture, educational agriculture, exchange agriculture and cyclic agriculture. The result of evaluation on citizens' values about multi-functions provided by urban agriculture can be used for policy making to overcome crisis of urban agriculture due to urban development and industrialization and to vitalize urban agriculture. The willingness-to-pay for the maintenance fund was categorized into vegetable garden users, general consumers, and all respondents, for analysis. The estimation results for the valuation of multi-functionality were KRW 20,367 per household for general consumers; KRW 22,174 for urban agriculture users; and KRW 21,467 for all respondents.

TOD이론의 발전과 입지효율성에 관한 연구 (A Study on the Location Efficiency and the Development of Transit-Oriented Development Theory)

  • 곽동화
    • 한국디지털건축인테리어학회논문집
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    • 제12권3호
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    • pp.27-38
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    • 2012
  • The purpose of this study is to analysis the concept of location efficiency, a base for the qualitative evaluation of TOD, and to propose the method of urban design for the improvement of location efficiency. Because of the environmental crisis by urbanization, sprawl and global warming, the importance of the solution through TOD has been increasing. For the future development of TOD, it becomes important to evaluate TOD qualitatively. From the study, it is grasped that location efficiency contains the concepts of value recapture, QoL and choice, financial return, and efficient regional land use and patterns. And the method of urban design for location efficiency is proposed as the followings: Form Based Zoning as land use plan, TOD and TOC model as node function, and street systems, mixed-use development, characteristic housing with various types, and networking of neighborhood facilities as place function.

대학도서관의 공간사용 실태에 관한 연구 (A Study on the Space Usages of Academic Libraries)

  • 안준석
    • 교육시설 논문지
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    • 제21권6호
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    • pp.25-32
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    • 2014
  • Korean academic libraries are facing serious space shortage problems due to an inability to accommodate for the rapidly increasing number of printed materials. Despite the current situation, Korean academic libraries have largely focused on impractical applications of the new library paradigm, using technology or management programs to improve the quality of research and learning environments of the university. However, such improvements would be fruitless without first resolving the space shortage crisis. In order to make realistic improvements to the quality of academic libraries, this study used questionnaires to employ the opinions of librarians currently practicing at such Korean libraries. Survey questionnaires about types and causes of space shortage problems, library facility expansion plans, expected effects of expansion, frequency of and reasons for furniture relocation, and tight spaces needing improvement were distributed to selected 4-year college librarians through Google Drive. Analysis of survey responses indicated that library space shortage was largely responsible for the hindrance of research and learning environments. Furthermore, it reflected the urgency to secure book storage space.

An Approximate Solution for Diffraction-Induced Shoreline in a Double Headland and Comparison with Field Measurement

  • Shoaib, Muhammad;Kim, Dong Hee;Lee, Jung Lyul
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2016년도 학술발표회
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    • pp.193-193
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    • 2016
  • In past decades beach erosion has been remarkably severe along coasts of different parts of the world, so that distinct types of coastal protective measures have been implemented; seawalls, wave-dissipating breakwaters, groins, artificial headlands or detached breakwaters have been constructed. In recent years, at Bongpeong beach, South Korea, an artificial headland was constructed to stop the beach erosion. The structure resulted in severe beach erosion of the adjoining places. In order to stop the consequences, another headland was constructed at some distance, but the construction of double headland did not prevent the erosion significantly. This paper focuses on the accurate design of the artificial double headland construction. The study presents the application of equilibrium shoreline empirical formula of parabolic type to estimate the equilibrium stages of the artificial double headland beaches and an analytic solution is presented in the present study. The research has solved the empirical formula of parabolic type to find the optimum result by considering the essential parameters that influence the erosion after the construction of double headland.

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도시안전에 영향을 미치는 재난유형에 관한 연구 (A Study on Types of Disasters Affecting City Safety)

  • 최윤철
    • 대한건축학회논문집:구조계
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    • 제35권6호
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    • pp.93-100
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    • 2019
  • Modern society is transforming into an extreme climate environment. This is fatal to humans and ecosystems and is expected to cause large-scale damage. As this spokesman, natural disasters are increasing as this global average temperature rises. Social and economic damage by this tendency is also increasing. In addition, the frequency and scale of social disasters are increasing. Damage to the living area due to the damage of the infrastructure due to the increased reliance on infrastructure has been increasingly enlarged. In this research, various disasters such as natural disasters and social disasters analyze the impact on urban safety. A local autonomous entity K Priority Management Establish a kind of disaster, prepare crisis management manual, and use it as a basic material of education / training.