• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 B
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• pp.496-499
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• 2003

System Integration is significant role in building, because it is that the more building system is integrated, the more they can save management costs and energy costs. Nowadays system protocols in building use BACnet, LonWorks, etc. to integrate effectively, but their interoperability is not perfect. Therefore, we propose system integration using Ethernet and TCP/IP for perfect harmony. When data network protocol, Ethernet and TCP/IP is used for control network, there are several problems. But there have been solved by many researches. therefore it is possible that building system integrate to use Ethernet and TCP/IP. Finally, we show that Ethernet and TCP/IP can be used for building automation system integration.

• 에너지공학
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• 제28권3호
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• pp.42-54
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• 2019

태양광 풍력 발전은 한국의 에너지 전환에 있어서 핵심적인 요소이다. 특히 이산화탄소 감축과 미세먼지 저감을 위해서 태양광 풍력 발전 확대 보급은 정책적으로나, 사회적으로 필수 불가결한 선택이다. 이에 본 논문은 태양광 풍력 확대에 대응하여 한국 전력시스템 내에서 추가적으로 발생하는 비용, 즉 통합 비용에 대해 분석하고자 한다. 2019년~2030년에 걸친 "8차 전력수급기본계획", "재생에너지3020 이행계획"과 2016년 태양광 풍력 발전량을 기반으로 KEPTA를 활용하여 시나리오 분석한 결과, 2030년 13.94Won/kWh~32.55Won/kWh의 통합비용이 필요하며, 백업비용은 8.94Won/kWh, 균형비용은 1.03Won/kWh~4.45Won/kWh, 계통접속비용은 3.97Won/kWh~19.16Won/kWh가 필요한 것으로 나타났다. 이러한 추가 비용이 확보될 때 태양광 풍력 발전의 확대를 위한 전력시스템 내 안정성이 확보될 것으로 예상한다. 향후 태양광 풍력 발전의 기술 개발과 전력저장장치 도입, 그리고 도매시장 가격 변화 등을 고려한 연구가 필요하다.

• 국제지역연구
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• 제12권3호
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• pp.69-88
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• 2008

본 연구는 수직결합 정도가 기업의 성과에 미치는 영향에 대해 실증적 분석을 시도한다. 수직 결합은 시장을 이용함에 따른 거래비용, 예를 들어 탐색비용, 거래 및 계약 비용을 제거할 수 있을 뿐만 아니라, 거래기업 간의 자산의 특이성에 의해 나타나는 기회주의적 행동과 이것에 의해 발생하는 비용을 절감할 수 있다는데 의의가 있으며, 따라서 기업의 성과에 정(+)의 영향을 미친다고 주장한다. 이를 위하여 금융위기 이전의 상장회사의 자료를 대상으로 분석하였다. 그 이유로는 한국의 기업의 조직구조가 IMF 관리체제하에서 타의에 의한 기업조직구조 변경이 이루지기 전에, 재벌뿐만 아니라 일반 상장기업들의 자생적인 기업수직 결합이 기업성과에 어떠한 영향을 미쳤는지를 분석을 하기 위해서이다. 이러한 분석은 처음 시도되는 것으로 그 결과는 일반적인 기대와 달리 한 기업 내의 수직 결합 정도가 높을수록 기업의 성과에 부(負)의 영향을 주는 것으로 나타났다. 한편 재벌그룹내의 수직적 결합관련은 기업성과와 아무런 관련이 없는 것으로 나타났다.

• 수산경영론집
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• 제48권4호
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• pp.45-66
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• 2017

Although the main objective of Free Trade Agreements (FTA) is market integration among member countries, there are limited studies supporting this impact. Our study explores whether FTA has enhanced market integration between South Korea and its FTA partners, focusing on South Korea's fishery product import market. We investigate two research questions concerning FTA impacts: first, whether trade costs declined when South Korea imported fishery products from its FTA partners after the FTA; second, if the speed of the convergence of South Korea-its FTA partners'price differential of imported fishery products on trade costs result to occur more quickly after the FTA. To determine these outcomes, we utilize a Threshold Autoregressive Model covering the sample periods from January 2002 to April 2017. Our findings demonstrate the effects of FTA on market integration are different among FTA partners. FTA has enhanced the market integration between South Korea and Norway, Vietnam, and Spain, respectively, but not for others. Therefore, we find positive evidence of FTA on fishery import market integration between South Korea and Norway, Vietnam and Spain, respectively.

• 한국의류학회지
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• 제23권1호
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• pp.42-53
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• 1999

Global sourcing strategy is the one that apparel firms adopt in order to improve efficiency. Souring statesgies are not limited to the decision of sourcing country or vertical integration of sewing process Sourcing strategies include all the ecision of marketing process from the acquisition of fabric to distribution of products. The present study aims to analyze the soucing strategies of Korea apparel industry in global perspectives by applying transaction cost approach and aims to provide the implications for the future. The results are as follows ; (1) sourcing strategies in the dimension of domestic versus offshore soucing are determined by the experience in foreign business and the degree of fashionability of the product. (2) Firms tend to increase affshore soucing as they accumulate the experience in foreign business because they can decrease transaction costs as the perceived risks decrease (3) Also firms tend to source their products in foreign countries when the products are more fashionable. Brand loyalty of the product is a additional factor that increases the proportion of domestic sourcing. (4) Degree of vertical integration of sourcing is determined by the fashionability brand loyalty and the experience in foreign business. That is firms decrease the transaction costs by avoiding the investment to short life fashion products. However firms increase the control over the high reputation product by in house production. As the apparel firms tend to more marketing oriented and the national boundaries of business envrionment becomes permeable more efficient global sourcing strategies should be stablished, Besides the production costs nonproduction costs should be equallly considered in order to analyze the total costs.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.575-586
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• 2005

This paper presents an approach to quantifying the costs and benefits of integrating ERP systems with project management systems, including potential time and cost savings. To properly identify the costs and the benefits, the paper shows the relevant construction information flows and the desired milestones in the integration process. The proposed benefit analysis model should allow construction firms considering the integration of their ERP systems with legacy systems or commercial project management software make informed decisions in regard to the existing alternatives in the early stages of decision making.

• 무역학회지
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• 제46권4호
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• pp.77-93
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• 2021

The results of this paper show that strategic and technical factors in the integration of logistics between shipping and logistics companies act as a synchronizing factor for internal and external logistics integration. In addition, internal integration of logistics is expanded to external integration, and internal and external logistics integration is shown to enhance the logistics performance of companies. In other words, the greater the strategic need for logistics integration and the higher the utilization of logistics technology, the stronger the motivation for logistics integration. Furthermore, both internal and external integration of logistics have a positive impact on companies' logistics costs and improvement of logistics services.

• 한국IT서비스학회지
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• 제12권3호
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• pp.345-377
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• 2013

Government agencies have many difficulties for the information system development and operation. One of the difficulties is a budget estimation. Each government agency suggests individually different estimation for the personnel expenses and IT infrastructure adoption costs in the same field of informatization promotions. The other one is the operation costs are increased exponentially in every year[42, 51]. Those difficulties make government agencies can not help adopting SaaS. In fact, most of IT consulting company and government agencies already recognized a variety of SaaS advantages. The most typical SaaS's advantages are cost reduction, Software rapid development and deployment. However, once government agencies decide to adopt SaaS, they can not avoid many problems and difficulties. There is no information in a detailed item in a budget. In those kinds of situation, there is no choice whether government agencies accept SaaS provider's suggesting adoption costs or not. Thus, we provide a sheet of SaaS adoption cost estimation to government agencies. To know the cost factors, this study uses TCO(Total Cost of Ownership)'s criteria. To give a management point, this study uses Gartner's Application development Life Cycle. In this study, the integration check framework which is SaaS adoption cost estimation makes government agencies possible to establish a adequate budget.

• 한국건축시공학회지
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• 제5권1호
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• pp.97-103
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• 2005

Building costs means capital costs which include cost of land, costs of acquiring and preparing the site, construction costs, professional fees, furnishings, cost of financing the project. and cost of management required to run and maintenance the building for use. There are several phases that determine the building costs : design phase, construction phase, and operation & maintenance phase. So, the cost of work could be set against the examining the full range of complexities that a building program might contain. To solve this problem, it needs to compute building cost systematically. This is still in the development stage, awaiting the organization of rational cost data base. The method of cost saving by cost control could be constituted by detailed knowledge of building costs for all possible combinations of components and subsystems that can be assembled into integration model of cost factor on each phase of project development. The model of cost saving in each building phase is available for procedures of cost control of building systems.

• 한국군사과학기술학회지
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• 제6권4호
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• pp.147-158
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• 2003

The prediction of wind field is very important fact in the radioactive and chemical warfare. In spite of advanced numerical weather prediction modelling and computing technology, the high resolution prediction of wind field is limited by the very high integration costs. In this study we coupled the mesoscale numerical model and microscale diagnostic numerical model with minimized integration costs. This coupled model has not only the ability of prediction of high resolution wind field including complex building but also microscale pollutant diffusion fields. For military operation this system can help making a practical and cost-effective decision in a battle field.