• 제목/요약/키워드: Project selection efficiency

검색결과 66건 처리시간 0.02초

공동주택 지하 주차장 기초형식 선정방법에 관한 연구 (A Study on the Selection Method of Foundation Type in the Underground Parking Lot of Apartments)

  • 임남기;이영도;배용환
    • 한국건축시공학회지
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    • 제4권3호
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    • pp.109-116
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    • 2004
  • Normally easy task of plat in urban architecture is that using underground full of activities for increase building site efficiency. Especially for using underground space for the parking lot. Also utilize underground is more increase for fulfill requirement in modern society considered with environmental friendly architecture. The primary objective of this study is to apply analyzed formal foundation type for selecting the optimum type of parking lots considered with structural stability, economical efficiency, construction efficiency, construction duration. This study aim to on criteria decided through the questionaries for the selection considered with in the scale of second stories parking lots underground, parking volume is 80 and reinforced concrete structure. The bearing capacity is 6~8m and downward from surface, healthy ground bearing capacity is 40 t/m2. This study comparative analysis and discuss economical efficiency, construction efficiency, construction duration based constructivist stability which applied Single foundation, Mat foundation, Drop Mat foundation. The result of this study is as follows: First, the result of economical efficiency is that on the basis of single foundation, Drop Mat foundation is 1.88, Mat foundation 2.04 as a comparative analysis on the basis of total construction cost included material cost, labor coast and machinery cost. Second, the result of construction efficiency order is single foundation, Drop Mat foundation, Mat foundation as a comparative analysis on the based connected characteristics. Third, the result of construction duration is that on the basis of Mat Foundation, Drop Mat foundation is 1.33, single foundation is 1.87 as a comparative analysis Critical Path. Forth, Each foundational type characteristics order through the matrix method is that overall each formal type of foundation contraries at economical efficiency and construction efficiency, construction duration. Also expect contradiction between engineers and owners due to engineer pursuit construction duration and ewer to begin with economical efficiency. Fifth, The selection of suitable foundation formal type needs that based consider project characteristic and field condition as according to above result of a comparative analysis. As a result, a comparative analysis economical efficiency, construction efficiency, construction duration of Mat foundation, Drop Mat foundation, single foundation with 3Bay reinforced structure underground parking lots on the healthy ground.

Agrobacterium tumefaciens Mediated Genetic Transformation of Pigeonpea [Cajanus cajan (L.) Millsp.]

  • Kumar, S.Manoj;Syamala, D.;Sharma, Kiran K.;Devi, Prathibha
    • Journal of Plant Biotechnology
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    • 제6권2호
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    • pp.69-75
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    • 2004
  • Optimal protocol for efficient genetic transformation has been defined to aid future strategies of genetic engineering in pigeon pea with agronomically important genes. Transgenic pigeonpea plants were successfully produced through Agrobacterium tumefaciens-mediated genetic transformation method using cotyledonary node explants by employing defined culture media. The explants were co-cultivated with A. tumefaciens strain C-58 harboring the binary plasmid, pCAMBIA-1301 [con-ferring $\beta$-glucuronidase(GUS) activity and resistance to hygromycin] and cultured on selection medium (regeneration medium supplemented with hygromycin) to select putatively transformed shoots. The shoots were then rooted on root induction medium and transferred to pots containing sand and soil mixture in the ratio of 1:1. About 22 putative TO transgenic plants have been produced. Stable expression and integration of the transgenes in the putative transgenics were confirmed by GUS assay, PCR and Southern blot hybridization with a transformation efficiency of over 45%. Stable integration and expression of the marker gene has been confirmed in the TO and T1 transgenics through PCR, and Southern hybridization.

정보화전략계획수립 의무화대상 설정에 관한 탐색적 연구-공공부문을 중심으로 (An Exploratory Study on the Selection of Mandatory Subjects for Information Strategic Planning - Focused on Public Sector)

  • 나종회
    • 디지털융복합연구
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    • 제15권4호
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    • pp.35-42
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    • 2017
  • 정부는 공공부문 정보화사업의 체계적인 추진과 더불어 정보화사업에 대한 효율성을 강화하기 위하여 정보화사업을 추진하는 경우 반드시 정보화전략계획수립을 의무화하고 있다. 그러나 정보화계획수립 필요성이 높은 사업임에도 명확한 판단기준의 부재로 정보화계획수립 없이 사업이 진행됨으로써 정보화사업 추진의 타당성이 낮은 실정이다. 본 연구는 공공부문 정보화사업에서 정보화전략계획수립의 실효성을 담보하기 위해 정보화전략계획수립 의무화대상을 명확히 판단하기 위한 판단기준을 마련하고자하는데 그 목적이 있다. 이를 위해 본 연구에서는 델파이방법을 통해서 공공부문 정보화사업의 정보화전략계획수립 의무화를 결정하는 결정요인과 판단모델을 설정하였다. 또한, 설문조사를 통해 정보화전략계획수립 의무화 판단모델에서의 4가지 결정요인들에 대한 타당성과 각 결정요인별 세부적인 판단기준을 파악하였다. 최종적으로 전문가집단에 의한 FGI를 통해서 설문조사 결과를 분석하고 정보화전략계획수립 의무화 대상 판단기준(안)을 제시하였다. 한편, 본 연구결과는 정부차원에서 정보화전략계획수립 의무화에 대한 정책결정과 예산작성지침으로써의 활용될 수 있을 것이다.

수자원사업 대안선정 및 투자우선순위결정을 위한 다기준의사결정모형 개발 (Development of MCDM for the Selection of Preferable Alternative and Determination of Investment Priority in Water Resource Projects)

  • 여규동;김길호;이상원;최승안
    • 대한토목학회논문집
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    • 제31권6B호
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    • pp.551-563
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    • 2011
  • 수자원사업은 대규모의 예산이 투입된다. 따라서 수자원사업은 합리적이고 신뢰성 있는 의사결정이 필요한데 그동안 주로 경제성분석에 의존하여 왔다. 본 연구목적은 경제성분석위주의 기존 의사결정이 아닌, 사업의 필요성과 투자의 타당성을 다양한 각도로 평가할 수 있는 수자원사업 대안선정과 투자우선순위결정을 위한 다기준의사결정방법을 도출하는 것이다. 본 논문은 경제성 분석, 정책적 분석, 취약성 분석과 각각의 하위평가항목으로 평가기준을 구성하였다. 또한, 전문가 설문을 통한 사전 가중치를 제시함으로써, 일관성 있는 평가가 이루어지도록 하였다. 그리고 전문가 설문을 통해 평가항목의 속성별로 위험성향을 고려한 효용함수를 도출하였다. 종합평가점수는 평가항목별 가중치와 속성별 효용점수로 산정된다. 적용결과, 평가기준은 취약성 기준에 큰 영향을 받는 것으로 나타났다. 본 연구는 수자원사업에 대한 효율성과 취약지역에 대한 형평성을 제고하는데 기여할 수 있을 것으로 판단된다.

프로젝트 공사기간과 연계된 극 초고층 타워크레인 최적화 선정에 관한 연구 (An Analysis Of Optimized Super Tall Building Tower Crane Selection Which Related With Project Construction Period)

  • 조지훈;조흥구
    • 한국건축시공학회지
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    • 제9권6호
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    • pp.131-139
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    • 2009
  • 극 초고층 공사에서 합리적인 타워크레인 선정이 필수적이나 현장 실적 자료의 부족과 주관적인 경험에 의한 계획 수립, 체계적인 기준 부재 등으로 계획상 오류나 비효율성이 크다. 특히 극 초고층의 특성 중의 하나인 높이에 따른 영향 요소들에 대한 분석이 미비하여 단순히 장비의 기계적 특성을 가지고 양중 시간을 예측하고 있는 실정이다. 본 연구에서는 양중 계획 시 담당자가 활용하기에 용이하고 체계적인 양중 분석이 가능한 시스템을 개발 하였으며, 현존 최고층인 버지 두바이의 자료를 활용하여 가변형 통계 모델을 개발하였다. 또한 층당 적정 공기 여부를 선정한 장비를 바탕으로 검토 및 의사결정을 가능하게 함으로써 극 초고층 공기 산정 방법의 패러다임을 전환 시켰다는 의미도 있다.

국가 R&D 기술적 성과의 질적 효율성 분석에 관한 사례 연구 : 가축방역 분야를 중심으로 (A Case Study on Qualitative Efficiency of National R&D Projects on Technical Performances : Focused on Livestock Quarantine)

  • 김경수;조남욱
    • 산업경영시스템학회지
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    • 제42권4호
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    • pp.8-15
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    • 2019
  • Korea's R&D investment has significantly increased in recent years and the quantitative outputs such as number of papers and patents have also increased with the investment. However, the quality of R&D outputs has not been fully addressed. In particular, quality of technical performance, such as the quality of patents, has attracted little attention. In this paper, a Data Envelopment Analysis (DEA) method was used to construct models for efficiency analysis of R&D investment, focused on quality of technical performance. Indices were proposed to analyze the quantitative and qualitative efficiencies of R&D investment. In order to effectively analyze R&D efficiencies, the measurement units of the input and output variables were standardized. Based on cases of livestock quarantine R&D projects of Korea, the quantitative and qualitative efficiencies of national R&D projects were analyzed and factors that would influence R&D efficiencies were identified. This paper suggests that both quantitative and qualitative efficiencies should be considered when measuring R&D efficiency. Also, it is recommended to carefully consider the characteristics of R&D projects during project selection stage.

과학기술혁신을 위한 National Project의 성공적 정책집행의 요인 (Factors of Successful Policy Implementation in National Projects for Technology Innovation)

  • 조국현
    • 기술혁신연구
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    • 제12권3호
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    • pp.73-96
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    • 2004
  • This research began by recognizing the development of telecommunication skill in a short period of time as one achievement of launching the national research and development (R&D) project for the diversification of telephone service and for the solution of telephone holdup rate. Under this concern, this research is focusing on searching the influential elements on successful outcome by analyzing the case of Time Division Exchange R&D Project carried out by Korea. Those variables for analyzing the case is limited to 7 definite variables, which are "willingness of policy making organization", "participation of manufacturers and buyers", "support from research and development group", "economy of operating methods and selection of machinery", "rate of technology transfer", "support from Fixer", and "quality management". Summarizing the result of analysis, in order to bring about technological innovation, knowledge creation activity leading to upward efficiency through competition and cooperation making a harmony should be done in one mechanism. I.e., launching an innovative policy should be done in an arena of competition and cooperation, where stability of implementing system is achieved, the entity of "Fixer" is an adequate operator, and competition and cooperation is efficiently managed, among where agreement on purpose and professional opinions are reflected.

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DEA기법을 이용한 함정무기체계의 구조적 효율성 평가방안 연구 (A Study on the Structural Efficiency Evaluation of Naval Weapon Systems through DEA Method)

  • 유윤진;최석철
    • 한국국방경영분석학회지
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    • 제36권3호
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    • pp.1-13
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    • 2010
  • 자료포락분석(DEA: Data Envelopment Analysis)기법은 민간 및 국방 분야에 있어서 조직 및 사업의 효율성 분석을 위해 폭넓게 활용되고 있다. 특히, 최근 국방분야에서는 방위산업체, 군병원 그리고 군시설공사에 DEA기법을 활용한 연구가 진행되었다. 본 논문에서는 DEA기법을 활용하여 함정무기체계 구조적 효율성 평가를 수행하였다. 함정무기체계의 효율성 평가를 통해 무기체계 획득시 ROC 결정이나 기종결정 등에 객관적인 의사결정 정보를 제공할 수 있을 것으로 기대된다.

공공부문의 정보화 투자관리 체계 구축 방향 제안 (A Study on the IT Investment Management System in Korean Public Sector)

  • 오강탁;박승범
    • 한국IT서비스학회지
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    • 제12권3호
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    • pp.165-178
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    • 2013
  • The interest in economics and efficiency of IT investment is growing as the amount of overall governmental IT investment steadily increase. Accordingly, there is a strong need to determine whether the expenditure incurs effectively for IT investment and to accurately analyze the economics of IT investment, In this perspective, this study discusses the prior researches on concepts regarding the analysis of IT investment management framework as proposed from academic and professional perspectives in advanced countries' government sectors. Thereafter, an adoption of IT investment management (ITIM) framework has been considered so as to enhance the performance of ICT initiative projects in the public sector. In the suggested IT investment management framework, we suggest economics and efficiency of public IT investment should be improved by integrating ICT project selection and control as well as evaluation stage into single governance framework.

인테리어 프로젝트 성과에 영향을 미치는 요인에 관한 연구 : 커뮤니케이션 품질요소에 대한 우선순위 인식 (A Study on the Factors Affecting the Performance of Interior Projects : Focusing on the Priority Recognition of Communication Quality Factors)

  • 성난희;이태원
    • 산업경영시스템학회지
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    • 제43권3호
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    • pp.156-166
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    • 2020
  • In this study, through an AHP (Analytic Hierarchy Process) analysis, the internal construction project was designed to analyze the factors affecting the performance of the project and provide suggestions on the quality of communication. To carry out this study, a selection factor was selected by referring to AHP theory and existing prior research. AHP technique was used to collect weights after analysis, examine and analyze gaps. In the interior construction project, the most important factor among the factors influencing the quality of communication to the project performance was communication interaction. Among the sub-factors, accuracy of exchange of information and timeliness of communication were shown in the order of importance. Looking at the results of comprehensive analysis of the first and second layers, the accuracy of information exchange among the elements of communication quality was found to be the number 1 in weight. The timeliness of communication, which is ranked second, and communication that takes place at an appropriate time can lead to efficiency in shortening the project execution period by eliminating unnecessary work. And, Among the factors that affect communication quality, it was analyzed that communication method is not an important factor when compared to other factors. This study shows that quality of communication influences the performance of interior construction projects and provides suggestions for improving communication quality. And it has been confirmed that managing communication quality can act as an important issue that can improve business performance in project execution and production of results.