• 제목/요약/키워드: large-scale IT project

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환경영향평가 대상사업에 적용가능한 생태면적률 지표 평가체계 개선 (Improvement of Biotope-Area-Ratio-Indicator and Appraisal System Applicable to Environmental Impact Assessment Projects)

  • 이관규;이상혁;김경호;이정환
    • 한국환경복원기술학회지
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    • 제14권5호
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    • pp.113-125
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    • 2011
  • Since the government of Korea (Ministry of Environment, MOE) introduced the policy applying 'Biotope-Area-Ratio-Indicator (BARI)' to huge residential land developments which Environmental Impact Assessment (EIA) should be performed, MOE has come to have the necessity to apply the indicator concretely at the stage of Prior Environment Review System (PERS) and EIA in various types of large scale land development projects. This study was conducted with the aim of supporting the application of BARI and related decision making in various other types of EIA projects as well as residential development projects through remodeling the system to apply the indicator of the past. Through the analysis of the problems in applying the past BARI and experimental appraisals to 11 types of EIA projects, the results and implications as follows were drawn. First, it's possible to extend the range of applications of BARI, which has been applied to only residential land development project, to all kinds of projects with area-typed land use pattern out of environmental impact assessment target projects. Second, it's also possible to set a target value into which regional characteristics and differences among locational properties are reflected. In addition, it's come to be able to differentially apply the target value of BARI according to the condition of the existing site. Third, it's improved to be able to suggest a macroscopic target value at the stage of PERS and to set detailed target values in each detailed land use at the stage of EIA. The key point underlies inducing methodology to determine target values to secure more permeable land coverage ratio for detailed land use patterns at the stage of EIA by making it possible to calculate BARI of the present land cover condition of the EIA target projects.

프로젝트 기획 단계의 의사결정 지원을 위한 3D 단위 공간 객체 적용 방안에 관한 기초 연구 (A Basic Study for the implementation of 3D unit space objects in the pre-design phase for decision making support)

  • 함남혁;김주형;이윤선;김재준
    • 한국건설관리학회:학술대회논문집
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    • 한국건설관리학회 2007년도 정기학술발표대회 논문집
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    • pp.864-867
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    • 2007
  • U-City건설 사업, 행정중심복합도시 건설 등 최근 도심 개발 사업이 대형화되고, 복합화되고 정보 인프라의 증가로 인하여 건설 산업이 정보화, 첨단화되면서 프로젝트의 기획단계의 중요성이 나날이 증가하고 있다. 최근 건설 분야에서 3D CAD 및 GIS 기술과의 융합 등 IT를 접목한 컨버전스를 통해 실제 건축물을 구축하기 전 건설 사업 단계별로 미리 시뮬레이션을 통해 의사결정을 지원할 수 있는 애플리케이션이 활발히 개발되고 있다. 하지만 프로젝트의 초기단계인 기획단계의 경우에는 업무의 특성상 전문가의 경험에 의존하는 경향이 있고, 행정적인 업무를 수반하기 때문에 IT기술을 활용한 어플리케이션을 적용하는 데 있어서 한계를 가지고 있다. 따라서 기획단계의 의사결정 지원을 위해 최근 이슈화되고 있는 3D CAD 데이터에 기획 단계에서의 설계요소 정보, GIS 기술을 연계하여 프로젝트 초기 단계인 기획단계의 업무 효율을 향상시킬 수 있는 방향을 제시하고자 한다.

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A Quantitative Approach to Minimize Energy Consumption in Cloud Data Centres using VM Consolidation Algorithm

  • M. Hema;S. KanagaSubaRaja
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제17권2호
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    • pp.312-334
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    • 2023
  • In large-scale computing, cloud computing plays an important role by sharing globally-distributed resources. The evolution of cloud has taken place in the development of data centers and numerous servers across the globe. But the cloud information centers incur huge operational costs, consume high electricity and emit tons of dioxides. It is possible for the cloud suppliers to leverage their resources and decrease the consumption of energy through various methods such as dynamic consolidation of Virtual Machines (VMs), by keeping idle nodes in sleep mode and mistreatment of live migration. But the performance may get affected in case of harsh consolidation of VMs. So, it is a desired trait to have associate degree energy-performance exchange without compromising the quality of service while at the same time reducing the power consumption. This research article details a number of novel algorithms that dynamically consolidate the VMs in cloud information centers. The primary objective of the study is to leverage the computing resources to its best and reduce the energy consumption way behind the Service Level Agreement (SLA)drawbacks relevant to CPU load, RAM capacity and information measure. The proposed VM consolidation Algorithm (PVMCA) is contained of four algorithms: over loaded host detection algorithm, VM selection algorithm, VM placement algorithm, and under loading host detection algorithm. PVMCA is dynamic because it uses dynamic thresholds instead of static thresholds values, which makes it suggestion for real, unpredictable workloads common in cloud data centers. Also, the Algorithms are adaptive because it inevitably adjusts its behavior based on the studies of historical data of host resource utilization for any application with diverse workload patterns. Finally, the proposed algorithm is online because the algorithms are achieved run time and make an action in response to each request. The proposed algorithms' efficiency was validated through different simulations of extensive nature. The output analysis depicts the projected algorithms scaled back the energy consumption up to some considerable level besides ensuring proper SLA. On the basis of the project algorithms, the energy consumption got reduced by 22% while there was an improvement observed in SLA up to 80% compared to other benchmark algorithms.

Effect of the Application of the CBD Output Management Technique for the Development of Operation Software for a Space Observation System

  • Seo, Yoon Kyung;Rew, Dong Young;Kirchner, Georg;Nah, Jakyoung;Jang, Bi-Ho;Heo, Jiwoong;Youn, Cheong
    • Journal of Astronomy and Space Sciences
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    • 제31권3호
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    • pp.265-276
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    • 2014
  • The application of software engineering is not common in the development of astronomical observation system. While there were component-wise developments in the past, large-scale comprehensive system developments are more common in these days. In this study, current methodologies of development are reviewed to select a proper one for the development of astronomical observation system and the result of the application is presented. As the subject of this study, a project of operation software development for an astronomical observation system which runs on the ground is selected. And the output management technique based on Component Based Development which is one of the relatively recent methodologies has been applied. Since the nature of the system requires lots of arithmetic algorithms and it has great impact on the overall performance of the entire system, a prototype model is developed to verify major functions and performance. Consequently, it was possible to verify the compliance with the product requirements through the requirement tracing table and also it was possible to keep to the schedule. Besides, it was suggested that a few improvements could be possible based on the experience of the application of conventional output management technique. This study is the first application of the software development methodology in the domestic astronomical observation system area. The process and results of this study would contribute to the investigation for a more appropriate methodology in the area of similar system development.

지방정부 재정역량 제고에 관한 사례 연구 -용인시 채무제로화 정책을 중심으로 (A Study on the Improving Fiscal Capability of Local Government -Focusing on the case of zeroing debt policy in Yong-in city)

  • 최선미
    • 한국콘텐츠학회논문지
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    • 제18권3호
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    • pp.472-485
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    • 2018
  • 본 연구는 용인시의 채무제로화 정책과정을 Kingdon의 다중흐름모형을 통해 분석하여 지방정부의 재정역량 강화 및 경쟁력 제고에 기여하고자 하였다. 용인시는 2012년 기준 약 8,000억원의 지방채무를 가지고 있었으나 2017년 초 채무상환을 완료하였다는 점에서 분석대상으로 선정하였다. 분석 결과 첫째, 정책문제의 흐름은 용인시의 채무지표에 대한 인식, 경전철사업의 실패 및 역북지구의 택지분양 실패이다. 둘째, 정치의 흐름은 새로운 지방자치단체장의 당선과 공무원 예산 삭감 등의 행정부 협조, 주민들의 협조로 볼 수 있다. 셋째, 정책대안의 흐름은 대규모 투자사업 축소, 유휴공유 재산 매각을 통한 세입확대 및 세수증대, 경전철 활성화 정책이다. 이러한 정책문제의 흐름, 정치흐름, 정책대안의 흐름이 독립적으로 흐르다가 부동산경기 활성화와 역북지구 매각이라는 정책의 창이 열리면서 경전철 활성화 등의 기타 정책적 요소와 결합하였다. 이 과정에서 긴축재정을 위한 관계기관 협상과 설득 등의 정책선도가의 역할이 크게 작용하였다. 이러한 정책의 산출물로써 용인시는 채무제로를 달성하게 되었다. 본 연구를 통해 지방재정 역량 제고를 위해서 정책선도가의 역할의 중요성 뿐만 아니라 행정부와 시민의 협조, 대형 투자사업 추진 검토체계 등의 제도적 보완이 필요함을 밝혔다.

농업생산기반 정비사업의 산업연관효과분석 -황락 저수지지구를 중심으로- (Analysis of Industrial Linkage Effects for Farm Land Base Development Project -With respect to the Hwangrak Benefited Area with Reservoir -)

  • 임재환;한석호
    • 농업과학연구
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    • 제26권2호
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    • pp.77-93
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    • 1999
  • This study is aiming at identifying the foreward and backward lingkage effects of the farm land base development project. Korean Government has continuously carried out farmland base development projets including the integrated agricultural development projects. large and medium scale irrigation projects and the comprehensive development of the four big river basin including tidal land reclamation and estuary dam construction for the all weather farming since 1962. the starting year of the five year economic development plans. Consequently the irrigation rate of paddy fields in Korea reached to 75% in 1998 and to escalate the irrigation rate, the Government had procured heavy investment fund from IBRD. IMF and OECF etc. To cope with the agricultural problems like trade liberalization in accordance with WTO policy, the government has tried to solve such problems as new farmland base development policy, preservation of the farmland and expansion of farmland to meet self-sufficiency of foods in the future. Especially, farmland base development projects have been challanged to environmental and ecological problems in evaluating economic benefits and costs where the value of non-market goods have not been included in those. Up to data, in evaluating benefits and costs of the projects, farmland base development projects have been confined to direct incremental value of farm products and it's related costs. Therefore the projects'efficiency as a decision making criteria has shown the low level of economic efficiencies. In estimating economic efficiencies including Leontiefs input-output analysis of the projects could not be founded in Korea at present. Accordingly this study is aimed at achieving and identifying the following objectives. (1) To identify the problems related to the financial supports of the Government in implementing the proposed projects. (2) To estimated backward and foreward linkage effects of the proposed project from the view point of national economy as a whole. To achieve the objectives, Hwangrak benefited area with reservoir which is located in Seosan-haemi Disticts, Chungnam Province were selected as a case study. The main results of the study are summarized as follows : a. The present value of investment and O & M cost were amounted to 3,510million won and the present value of the value added in related industries was estimated at 5.913million won for the period of economic life of 70 years. b. The total discounted value of farm products in the concerned industries derived by the project was estimated at 10,495million won and the foreward and backward linkage effects of the project were amounted to 6,760 and 5,126million won respectively. c. The total number of employment opportunities derived from the related industries for the period of project life were 3,136 man/year. d. Farmland base development projects were showed that the backward linkage effects estimated by index of the sensitivity dispersion were larger than the forward linkage effect estimated by index of the power of dispersion. On the other hand, the forward linkage effect of rice production value during project life was larger than the backward linkage effect e. The rate of creation of new job opportunity by means of implementing civil engineering works were shown high in itself rather than any other fields. and the linkage effects of production of the project investment were mainly derived from the metal and non-metal fields. f. According to the industrial linkage effect analysis, farmland base development projects were identified economically feasible from the view point of national economy as a whole even though the economic efficiencies of the project was outstandingly decreased owing to delaying construction period and increasing project costs.

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포스트 코로나 시대 관광 트렌드를 반영한 농촌체험마을 조성방안 연구 - 전라북도 완주군 소양면 위봉마을을 사례로 - (A Study on the Creation Rural Experience Village Reflecting the Travel trends of the Post-Corona - A Case of Wi-bong Village in Jeollabuk-do -)

  • 안필균;엄성준;조숙영;김상범
    • 농촌계획
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    • 제26권4호
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    • pp.27-39
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    • 2020
  • With the COVID-19 pandemic, the global economy has stagnated and our daily lives have changed. The rural economy is also experiencing damage, such as an average of 65% or more decrease in the number of visitors to rural experience resort villages due to the spread of COVID-19. In order to minimize the damage arising from the prolonged coronavirus, a hospitality system in response to changes in rural tourism behavior and consumer demand is needed to revitalize rural areas and maintain continuous economic independence. Therefore, this study attempted to find ways to utilize landscape resources such as education, culture, history, and ecology in order to complement the existing experience programs in connection with local resources and local environment. Wibong Village, which is the subject of the study, attempted to revitalize the village using the resources through the "Creative village creation" project in 2015. Due to poor management of historical resources, difficulty in operating experience programs, and response to changes in the natural environment, the rate of implementation of the project plan was very low. Currently, the demand for experience is also decreasing due to the COVID-19 effect, so it was judged that it was necessary to develop an experience village program suitable for the needs of experienced visitors by discovering additional local resources for the continuous operation of the experience village. In order to solve the problem of the use of landscape resources and the spatial composition of the study site, additional investigations of local resources were made, and an experience program course that could be operated by theme was proposed by configuring a space suitable for the use of landscape resources. By dividing the additionally investigated landscape resources into history, ecology, and region, an experiential course was created to separate the traffic lines, and the space composition for large-scale experienced visitors that had been previously operated was constructed in a form suitable for the post-corona era. In addition, at least two experiential tour courses that can be operated by period were proposed to maintain economic effects. Starting with this study, if further research on the creation and spatial composition of a rural experience village centered on the connection with the region, it will be used as research results that can be referenced in projects such as village creation, rural space planning, and living area analysis. It is expected that it will be able to effectively cope with the construction of a rural area suitable for the post-corona era, where demand is expected to increase in the future.

문화재수리공사의 감리업무량 조사를 통한 감리대가 기준 마련 연구 (A Study on Standardization of Supervision Cost by Investigating Supervision Workload in Cultural Heritage Repair Works)

  • 박환표;한재구
    • 한국건설관리학회논문집
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    • 제14권1호
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    • pp.32-42
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    • 2013
  • 정부는 문화재수리공사의 품질확보 및 부실공사를 방지하기 위하여 문화재 감리제도를 2010년 1월에 도입하였다. 그러나, 문화재 감리와 관련된 감리대상공사, 감리자의 업무 범위, 감리대가, 감리원의 배치기준 등이 마련되어 있지 못해, 공공건설공사에서 운영하고 있는 감리제도를 운영하고 있다. 이로 인해 소규모 공사위주의 문화재수리 및 복원 특성을 반영한 문화재수리공사의 감리특성을 반영하고 있지 못한 실정이다. 따라서, 본 연구는 문화재수리공사의 특성에 맞는 평균 공사기간을 분석하여 감리업무와 대가기준 작성방향을 제안하였고, 문화재수리공사의 감리업무량을 조사 분석하여 감리대가기준을 마련하였다. 즉, 일정규모 이상의 문화재수리공사 경우, 감리원이 현장에 상주하여 감리업무를 수행하기 때문에 공공건설공사의 감리대가 산출방식과 같은 정액적산방식을 적용하여 감리대가 기준(안)을 제안하였다. 또한 일정규모 이하인 소규모 문화재수리공사의 경우, 감리원이 현장에 상주하지 않고, 주요 공종에만 현장에 방문하여 검사 및 확인하는 "건축법"의 수시 감리방식과 같은 비상주 감리대가 기준(안)을 제안하였다. 상기 문화재감리대가 기준(안)을 적용하여 분석한 결과, 문화재수리공사 상주감리의 감리비는 공공공사의 시공감리 대비 98% 수준이며, 비상주감리의 감리비는 건축공사감리 대비 158% 수준으로 도출되었다. 상기 연구결과인 문화재수리공사의 감리대가 기준(안)을 현장에 적용하게 되면, 문화재수리공사의 고품질 확보 등을 통하여 우리나라의 소중한 문화재를 보존할 수 있을 것으로 기대된다.

다수당사자(多數當事者) 중재(仲裁)에 있어서 절차병합(節次倂合)과 중재인선정(仲裁人選定) (Consolidation of Arbitral Proceedings and Appointment of Arbitrators in Multiparty Arbitration)

  • 이강빈
    • 한국중재학회지:중재연구
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    • 제8권1호
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    • pp.35-54
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    • 1998
  • In recent years, there has been a significant increase in the number of large-scale projects involving construction, public works and the installation of industrial plants. These projects usually require the participation of a number of public and private entities and involve more than one contract. When disputes arising in connection with these projects are to be submitted to commercial arbitration, the parties often wish to have all disputes decided by one arbitral tribunal, in a single comprehensive proceeding. It has become apparent that the resolution of all major disputes which may arise in connection with such a project in a single comprehensive arbitration proceeding presents a number of advantages. The arbitral institution can provide for a multiparty arbitration proceeding only where all of the parties have agreed to it either at the time the disputes arise or at the time the parties enter into their various contractual arrangement. The discussion about multiparty arbitration centers on the question whether courts should have the power to order the consolidation of arbitration proceedings absent the consent of the parties. As the U.S. Supreme Court has repeatedly denied certiorari to cases presenting the consolidation-question, the conflict between the Court of Appeals' positions remains. The common method of selection in a bilaterial proceeding is the formula by which each party appoints one arbitrator and the two party-chosen arbitrators then mutually agree on a third, neutral arbitrator. This popular method poses, however, both a policy and practical problems In a 3-party-proceeding. It seems that the better solution is to have courts or arbitral institutions appoint all arbitrators for a multiparty proceeding. American courts have employed a variety of methods to appoint arbitrators for multiparty disputes in cases in which the parties had not provided for or could not agree upon a method themselves.

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Large Scale Experiments Simulating Hydrogen Distribution in a Spent Fuel Pool Building During a Hypothetical Fuel Uncovery Accident Scenario

  • Mignot, Guillaume;Paranjape, Sidharth;Paladino, Domenico;Jaeckel, Bernd;Rydl, Adolf
    • Nuclear Engineering and Technology
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    • 제48권4호
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    • pp.881-892
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    • 2016
  • Following the Fukushima accident and its extended station blackout, attention was brought to the importance of the spent fuel pools' (SFPs) behavior in case of a prolonged loss of the cooling system. Since then, many analytical works have been performed to estimate the timing of hypothetical fuel uncovery for various SFP types. Experimentally, however, little was done to investigate issues related to the formation of a flammable gas mixture, distribution, and stratification in the SFP building itself and to some extent assess the capability for the code to correctly predict it. This paper presents the main outcomes of the Experiments on Spent Fuel Pool (ESFP) project carried out under the auspices of Swissnuclear (Framework 2012-2013) in the PANDA facility at the Paul Scherrer Institut in Switzerland. It consists of an experimental investigation focused on hydrogen concentration build-up into a SFP building during a predefined scaled scenario for different venting positions. Tests follow a two-phase scenario. Initially steam is released to mimic the boiling of the pool followed by a helium/steam mixture release to simulate the deterioration of the oxidizing spent fuel. Results shows that while the SFP building would mainly be inerted by the presence of a high concentration of steam, the volume located below the level of the pool in adjacent rooms would maintain a high air content. The interface of the two-gas mixture presents the highest risk of flammability. Additionally, it was observed that the gas mixture could become stagnant leading locally to high hydrogen concentration while steam condenses. Overall, the experiments provide relevant information for the potentially hazardous gas distribution formed in the SFP building and hints on accident management and on eventual retrofitting measures to be implemented in the SFP building.