• 제목/요약/키워드: strengthen

검색결과 4,173건 처리시간 0.029초

Impact of composite materials on performance of reinforced concrete panels

  • Mazek, Sherif A.;Mostafa, Ashraf A.
    • Computers and Concrete
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    • 제14권6호
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    • pp.767-783
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    • 2014
  • The use of composite materials to strengthen reinforced concrete (RC) structures against blast terror has great interests from engineering experts in structural retrofitting. The composite materials used in this study are rigid polyurethane foam (RPF) and aluminum foam (ALF). The aim of this study is to use the RPF and the ALF to strengthen the RC panels under blast load. The RC panel is considered to study the RPF and the ALF as structural retrofitting. Field blast test is conducted. The finite element analysis (FEA) is also used to model the RC panel under shock wave. The RC panel performance is studied based on detonating different TNT explosive charges. There is a good agreement between the results obtained by both the field blast test and the proposed numerical model. The composite materials improve the RC panel performance under the blast wave propagation.

항만공사(PA) 운영 활성화를 위한 법률 정비와 지원조례 설치방안 -부산항만공사와 부산광역시를 중심으로- (Managing Legal Issues and Developing Ordinance for the Effectiveness of Port Authority: Focused on Busan Port Authority and Busan Metropolitan City)

  • 손애휘
    • 한국항만경제학회지
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    • 제20권2호
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    • pp.1-17
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    • 2004
  • This study deals with legal issues and solutions for a successful management of the Busan Port Authority(BPA) and proposes Busan Metropolitan City Ordinance for the effectiveness of BPA because the role of BPA is to improve Busan regional economy and to strengthen the competitiveness of Busan Port. In order to prepare the ordinance, this paper suggests that the current legislation related to Port Authority(PA), which empowers central government to control the management of port, should be amended to strengthen the port autonomy by allowing PA and local government to control the management and operation on port independently and enabling the building of cooperative system from the City for BPA.

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Status Quo and Revitalization Strategy of Design Industry in Busan

  • Kim, Hyong-Koo;Lee, Young-Sook
    • International Journal of Contents
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    • 제7권1호
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    • pp.65-72
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    • 2011
  • This paper aims to propose ways to revitalize the design industry of Busan by way of analyzing the status of the design and its related industries .We also propose the systematic ways to improve the employment and strengthen the global competitiveness of the design industry of Busan. The basic year of this study is 2010, and the goal years are 2011, 20115 and 2020, each of which represents the short-term, mid-term and long-term goal period, respectively. The content of our study includes the status of the design and its related industries and ways to revitalize them. Our study focuses on ways to revitalize the design industry through the particularization of the design industry in Busan and to strengthen the global competitiveness of Busan's strategic industries. For this, we have read up on the design and its related industries, surveyed the previous research work, and conducted the statistical analysis of design fields for the years of 2006-2008. In order to provide the revitalization plan in a more efficient way, we have also gathered the opinions of the experts through FGI (focus group interview).

빛을 통해 표현되는 공간인지에 관한 연구 (A Study on The Space Recognition to be represented through Light)

  • 오승남;이호중
    • 한국실내디자인학회논문집
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    • 제14권2호
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    • pp.188-196
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    • 2005
  • The light has been considered as a main character that can not be omitted in architecture since ancient time. The recognition of space by light means that light makes the fictional space recognizable concretization. Light and shade make emptiness and substance can be easily recognized. Also reiteration and location of light and shade change the degree of acknowledgement. The character of light can strengthen or weaken the power of recognition concerning territory, direction and location. Also it can broaden, close, and segregate the domain and eventually strengthen recognition. In this study, I will try to find how space can be recognized with the help of light in architectural territories in terms of actual states. Also the main aim of my study will be the study of the light application in real space with the architectural example of space recognition by light and possible opportunity of it in space plan.

Impact of composite materials on buried structures performance against blast wave

  • Mazek, Sherif A.;Wahab, Mostafa M.A.
    • Structural Engineering and Mechanics
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    • 제53권3호
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    • pp.589-605
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    • 2015
  • The use of the rigid polyurethane foam (RPF) to strengthen buried structures against blast terror has great interests from engineering experts in structural retrofitting. The aim of this study is to use the RPF to strengthen the buried structures under blast load. The buried structure is considered to study the RPF as structural retrofitting. The Guowei model (Guowei et al. 2010) is considered as a case study. The finite element analysis (FEA) is also used to model the buried structure under shock wave. The buried structure performance is studied based on detonating different TNT explosive charges. There is a good agreement between the results obtained by both the Guowei model and the proposed numerical model. The RPF improves the buried structure performance under the blast wave propagation.

경쟁환경에서의 전문도서관.정보센터의 경영전략에 관한 연구 (A Study on the Management Strategies of the Special Libraries and Information Centers under the Competitive Circumstances)

  • 이용재
    • 한국도서관정보학회지
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    • 제35권2호
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    • pp.155-173
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    • 2004
  • 이 연구는 21세기 지식기반사회에서 우리나라 전문도서관ㆍ정보센터가 서비스를 향상하고 조직의 경쟁력을 강화하기 위한 방안을 모색하였다. 이를 위해 우선 전문도서관ㆍ정보센터의 특성을 살펴보고 현재 전문도서관ㆍ정보센터가 처한 경쟁환경을 진단하였다. 다음으로 지식경영과 경쟁정보의 관점에서 전문도서관ㆍ정보센터의 경영전략을 모색하였다 나아가 우리 사회의 전문도서관ㆍ정보센터 현실에서 지식경영과 경쟁정보를 활용하기 위한 전략을 제시하였다.

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슬래브교 네트형 외부강선 보강 공법의 실험적 연구 (A Study of Net Type External Prestress Strengthening Method for Slab Bridges)

  • 한만엽;신재우;강태헌;진경석;강상훈
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2006년도 춘계학술발표회 논문집(I)
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    • pp.266-269
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    • 2006
  • External pre-stressing strengthening method is the most popular way to strengthen concrete structures because of its efficiency and economic advantage. The laboratory test was performed to reinforce the slave bridge with the external tendon strengthening by longitudinally and transversally, which is concerned with formal feature of slave bridge, generally. Based on this test, anchoring device to strengthen the external tendon strengthening method was established and its strengthening effects were verified by evaluating the load bearing capacity.

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국내 컨벤션 산업의 환경분석에 따른 육성 전략 (A Strategy to Foster the Domestic Convention Industry according to Analysis on the Present Condition)

  • 김종훈;곽규환
    • 한국조리학회지
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    • 제9권3호
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    • pp.73-87
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    • 2003
  • The purpose of this study is to suggest a Promotion for the Korean convention industry by analyzing the current status and problems in the Korean convention industry. Its fostering plans as follows; 1. Provide educational program such as meeting planners institute (MPI) in the United Statesproduces a range of training program for convention management, together with a certification when a certain level is reached. 2. Construct multiplex-convention center and convention facilities propelling by demand analysis. 3. Strengthen gather information and investigation. 4. Establishment of Korea convention bureau. 5. Strengthen overseas publicity activities through Korea National Tourism Organization and activate the inducement of international convention from the public organizations and institutions. 6. Increased financial and legal support for convention center developers and convention organizers. 7. The rapid growth of convention industry tourism combined with increasing competition, makes integrated networking an imperative tool for ensuring international competitiveness.

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비용 흐름의 차이를 고려한 교체 설비 대안에 대한 타당성 평가 (The Evaluation of the Validity of Equipment-replacing Alternatives in Consideration of the Differences of Cost Flow)

  • 김성집;박흥석
    • 산업경영시스템학회지
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    • 제17권31호
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    • pp.99-114
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    • 1994
  • The introduction of new equipments to strengthen the competitiveness of enterprises is one of pretty important factors. Enterprises introducing new equipments strengthen competitiveness through productivity increasing, high quality maintenance, inventory reduction, improved design and production interface, simple scheduling process, low scrap rate, rework reduction, etc. Managers will work out the best equipment-replacing strategy through the appropriate combination of potential cost attributes and qualitative attributes difficult to quantify in accordance with the business purpose. This study is to present a method to select an equipment-replacing alternative through the decision-making model of Analytic Hierarchy Process in consideration of the differences of cost flow of the alternatives, taking into consideration tangible attributes and strategic intangible attributes.

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Study on the Impact of the Private Credit Excess on the Credit Risk under the Massive Capital Inflows

  • Kim, Jong-Hee
    • East Asian Economic Review
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    • 제20권3호
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    • pp.391-423
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    • 2016
  • By examining the relationship between private credit growth and the possibility of credit risk while focusing on international capital in 21 countries over the period 2000:1Q-2015:2Q, this paper shows that the impact of private credit growth on credit risk is apparent under the high ratio of capital inflows, and its impact on credit risk in the seven Asian countries is even stronger. And the possibility of credit risk caused by private credit is mainly coming from portfolio inflows rather than direct inflows. Finally, portfolio inflows strengthen the positive relationship between credit excess and credit risk in Asian countries, and this trend is seen more in these after the global financial crisis. Taken together, the stronger positive relationship between credit excess and credit risk can be strengthen under the massive portfolio inflows in particular in the seven Asian countries such as Hong Kong, India, Indonesia, Korea, Malaysia, Singapore, and Thailand.