• 대한안전경영과학회지
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• 제11권1호
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• pp.175-182
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• 2009

The effort for GSI based IT system consolidation has been continued due to the increase of the system and complication increase of system connection, mainly by the global company. Since successful example of GSI realization by part of developed company affect to Korea, global level IT system consolidation has been examined mainly by the domestic company that have great deal of overseas business. Although they have examined consolidation possibility mainly on R&D, finance, operation management part which is the base part of company management, there are limitation for consolidation realization because of the difference between regional business problem of huge cost needed for consolidation. To overcome these realization limitations, it is necessary to lead risk and cost reduction through stepwise part unity and decide Priority Evaluation Framework for Consolidation target and systematic consolidation strategy. For GSI realization, appropriate distributions of unification time according to target system are needed. In this study, based on easiness and usefulness of consolidation and connection between the targets, evaluation methodology for Priority Evaluation Framework of system consolidation has been developed. Priority Evaluation Framework has been decided by applying developed methodology to global production company of high tech industrial part. Through this methodology, companies can realize successful and stable GSI by investing global resources intensively by Priority Evaluation Framework of consolidation target system.

• 제어로봇시스템학회논문지
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• 제7권11호
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• pp.962-966
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• 2001

The major problem at a branch point for point-to-multipoint available bit rate(ABR) services in asynchronous transfer mode (ATM) networks is how to consolidate backward resource management(BRM) cells from each branch for a multicast connection. In this paper, we propose an efficient feedback consolidation algorithm based on an adaptive dynamic threshold(ADT) to eliminate the consolidation noise and the reduce the consolidation delay. The main idea of the ADT algorithm lies in that each branch point estimates the ABR traffic condition of the network through the virtual queue estimation and the transmission threshold of the queue level in branch points is adaptively controlled according to the estimation. Simulation results show that the proposed ADT algorithm can achieve a faster response in congestion status and a higher link utilization compared with the previous works.

• 산업공학
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• 제18권4호
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• pp.418-430
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• 2005

We establish an efficient strategy for construction and operation of data consolidation center for multi-organization in public sector. First, we introduce important concepts on data consolidation center in public sector, and draw some success factors by analyzing several foreign and domestic cases. Second, we construct all the possible logical operational models of the center and investigate the properties and feasibility of the models. Third, we suggest a virtual operational environment for the two representative models selected by feasibility criteria among the possible logical models, and compare the two models in terms of operational cost. We also utilize AHP methodology to evaluate qualitative opinions on the two models from several experts in public information systems. As a result, we find the best alternative is the case in which all infrastructure and facilities for the center are provided by government, and common essential IT operations are integrated, associated data are consolidated and the whole operational work are outsourced to specialized IT operations service providers.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2005년도 지반공학 공동 학술발표회
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• pp.469-478
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• 2005

Understanding of an accurate state of consolidation of underconsolidated clay body, like a recently dredged or reclaimed clay deposits, is one of the most difficult tasks. The estimation of the consolidation status of these clay bodies is often made by laboratory tests of numerical analyses. However these methods demonstrated crucial limitations in the accurate prediction. Therefore, the predicted degree of consolidation from various techniques is verified by actual measured field data. The degree of consolidation of clay body in the East Side Hinterland of Gwangyang Port(2nd Phase) is evaluated in this study by using various techniques such as oedometer test, CPTu, numerical analysis and piezometer tests etc. And the results are compared each other to find the most reliable prediction technique. The merit and reliability of each method is discussed in detail. It is revealed from in this study that the estimation of degree of consolidation by an actual pore water pressure measurements is the most reliable technique.

• 한국지반환경공학회 논문집
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• 제7권3호
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• pp.5-19
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• 2006

연약 점토지반에서의 2차 압밀침하량은 일반적으로 전체 압밀침하량에 비해 미소하고 2차 압밀까지의 종료시간도 상당히 길기 때문에 이를 무시하는 경우가 많으나 유기질 또는 고압축성의 점토에서는 비교적 큰 침하량이 발생하기 때문에 중요한 공학적 요소로 간주된다. 이러한, 준설매립지반의 잔류침하량을 저감시키기 위해선 선행재하공법(preloading)이 주로 적용된다. 본 연구에서는 대규모 매립지역의 장기침하량을 보다 합리적으로 결정하기 위하여 실내에서 단계재하 압밀시험 및 surcharging 압밀시험 등을 수행하였다. 서해안(인천) 및 남해안(광양) 일대의 대규모 준설매립지역에서 시료를 채취했으며, 이 지역내 준설점토의 2차 압밀특성치들을 실험으로 규명하여 장기침하량 예측에 필요한 기초자료로 활용하였다. 또한, 지리정보체계(geographic information system, 이하 GIS)의 위치정보(수치지도)에 지반정보(속성자료)를 접목시켜 해당지역의 자료를 D/B화 한 후, GIS의 연산기능 및 공간추정 기능 등을 활용함으로써 대규모 준설매립지역의 2차 압밀침하량을 예측하였다.

• 디지털산업정보학회논문지
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• 제9권4호
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• pp.81-94
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• 2013

Recently, the dramatical increasement of personal information infringement makes the government strongly enforce the laws. The Key-point of law enforcement is the DB encryption. Nevertheless, DB encryption is the one of the hardest thing in the organization's security measures. The purpose of this paper is suggesting alternative means of residence numbers and showing the possibility of indicator usage for safety measures. This research suggested the best ways to make a decision through a before and after comparison of the DB encryption cost of the inherent identification number elimination in "Social Welfare consolidation service system". When this research result was applied in "Happiness-e-Um system", we found that the alternative means are more efficient than the residence number for encryption cost, system revision time and so on.

• 정보화연구
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• 제9권1호
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• pp.67-78
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• 2012

현대의 조직들은 각 부서별로 응용프로그램 서버, 웹 서버, 데이터베이스 서버, 메일 서버 등과 같은 수많은 서버들을 보유하고 있다. 이로 인한 서버 과다보유는 이제 공공기관과 사기업을 막론하고 정보시스템 센터에서는 일반화된 현상이다. 서버 과다보유는 단일 응용프로그램만을 지원하는 전용서버의 도입이 주요 원인이며, 이로 인해 낮은 자원 활용률, 대규모 공간 사용, 높은 관리비용 등과 같은 문제가 발생하는데, 하드웨어, 소프트웨어, 유지보수비용, 설비, 인건비 등의 절감을 통해 이러한 문제를 해결해 줄 수 있는 서버통합이 그 해결책이다. 본 연구에서는 재난관리시스템의 사례연구를 통해 공공기관의 서버통합 기법을 제안하였다.

• 디지털융복합연구
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• 제9권2호
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• pp.33-40
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• 2011

국제회계기준의 도입이 기존 시스템에 어떠한 영향을 미칠지를 정확히 예측하기는 어렵다. 하지만 치밀하게 준비하고, 예상할 수 있는 문제점을 고려한 상대에서 도입이 결정된다면 각 영역별로 발생 가능한 부작용을 최소화 할 수 있을 것이다. 본 논문의 목적은 국제회계기준의 도입에 따라 큰 변화가 예상되는 연결재무제표시스템의 설계 및 구축방안을 제시하는데 있다. 이를 위하여 다음과 같은 다섯 가지 영영별 연결재무제표시스템 구축 방안을 제안하였다. 특수목적기업의 연결 관련 영역, 내부거래제거 영역, 미실현손익의 제거 영역, 투자자본 상계 영역, 기타 영역으로 연결주식의 작성과 통합 CoA 설정과 관련한 방안을 제시하였다.

• 농업과학연구
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• 제29권1호
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• pp.66-83
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• 2002

The economic feasibility analysis including benefit-cost ratio and internal rate of return of a land consolidation and on-farm development project was mainly depended upon the direct benefits and costs arising during project life. Therefore the projects were neglected in allocating the government's financial funds and loans on account of the low economic rate of return of the project. Accordingly the extended benefit-cost analysis method should be introduced and adapted to cover not only the benefit s such as non-market values of environmental and food security fun ct ions of the project but also market values of the project outputs. The main purposes of this study are (1) to prepare a guide line for economic feasibility analysis based on the IBRD and ADB guidelines, (2) to estimate the benefits from productivity increase, labor saving, savings of O&M cost of farm mechanization and project facilities, savings of farmer's burden for their public health, increasing environmental and public functional value of paddy fields, improving food security condition and formation of peaceful and uncontroversial rural society by implementing the land consolidation and on-farm development, (3) to introduce the newly adapted analytical method as the extended benefit cost analysis which could make possible to be included the values of non-market goods such as the food security and the environmental public function of paddy fields. To carry out this study, the existing publications on the guidelines for economic agricultural projects were reviewed and consultation was made with a For the post evaluation study of the land consolidation and on-farm development project, field survey in Jigok and other comparative area were made to get available information. According to the project completion report, Jigok land consolidation and on-farm development project has 55ha of benefit area out of 69ha of gross area. The project was started in November 11th, 2000 and completed october 30th, 2001. The total project costs were amounted to 2,548 million won and the annual project benefits were estimated at 335million won evaluated by domestic market prices. The ERR(Economic Rate of Return) and SRR(Social Rate of Return) of the project based on the shadow pricing system were estimated at 4.4% and 16% respectively. On the other hand, the ERR and SRR based on the domestic market value system were amounted to 6.37% and 14.62%. In conclusion, Korean land consolidation and on-farm development projects have not carried out from the view point of economic rate of return under shadow pricing system but from the view point of domestic pricing system. For the future feasibility studies on land consolidation projects have to be carried out including the non-market values as environmental and food security function of the projects.

• 한국지반공학회논문집
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• 제25권12호
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• pp.37-45
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• 2009

새로운 해양공간 창출을 위하여 꾸준히 이루어지고 있는 준설매립은 오랜 시간이 소요된다는 단점 때문에 이를 촉진시키기 위한 연구들이 지속적으로 진행되고 있다. 본 논문에서는, 자중압밀 촉진공법 중에 하나인 해상 연직배수 공법(PDF, $\underline{P}$lastic board $\underline{D}$rain by $\underline{F}$loating system)의 국내 준설토에 대한 적용성을 파악하기 위하여 30가지 경우에 대하여 실내 자중압밀실험을 수행하였다. 무처리 상태의 경우와 국내 현장에서 많이 이용되고 있는 4가지 종류의 PBD를 미리 설치한 경우에 대하여 자중압밀 종료 시간 및 압밀 침하량 등을 비교 분석하여 자중압밀 촉진효과를 확인하였다. 실험결과, 준설토의 투기 전 PBD를 설치한 경우 자중압밀의 시간단축에 효과가 있었다.