• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2006년도 정기학술발표대회 논문집
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• pp.338-341
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• 2006

2005년 1월 민간투자법 개정과 함께 BTL방식이 도입되어 생활기반시설을 확충하는 주요 사업방식으로 정착되어 가고 있다. 특히 BTL방식 대상시설 중 각 시도 교육청이 발주하는 공공교육시설사업은 전년 대비 그 규모가 45% 증가되며 BTL방식의 주요 핵심사업으로 대두되고 있다. 그러나 현재까지 수행된 BTL사업 추진과정에서 많은 문제점이 나타나고 있으며, 공공교육시설사업에서는 교육청과 민간사업자의 역할이 바뀌면서 사업진행이 원활하지 않고 많은 문제점이 나타날 것으로 예상된다. 따라서 본 연구에서는 BTL사업 추진절차에서 나타날 수 있는 문제점을 해결하고 교육시설사업을 원활하게 하기 위하여 교육청 업무를 지원할 수 있는 CM적용모텔을 개발하고, 그에 따른 각 사업 참여주체별 업무범위를 제안하고자 한다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제16권1호
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• pp.72-80
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• 2016

Re-auction happens when a bid winner defaults on the payment without making second in-line purchase declaration even after determining sales permission. This is a process of selling under the court's authority. Re-auctioning contract price of real estate is largely influenced by the real estate business, real estate value, and the number of bidders. This paper is designed to establish a statistical model that deals with the number of bidders participating especially in apartment re-auctioning. For these, diverse factors are taken into consideration, including ratio of minimum sales value from the point of selling to re-auctioning, number of bidders at the time of selling, investment value of the real estate, and so forth. As an attempt to consider ambiguous and vague factors, this paper presents a comparatively vague concept of real estate and bidders as trapezoid fuzzy number. Two different methods based on the least squares estimation are applied to fuzzy regression model in this paper. The first method is the estimating method applying substitution after obtaining the estimators of regression coefficients, and the other method is to estimate directly from the estimating procedure without substitution. These methods are provided in application for re-auction data, and appropriate performance measure is also provided to compare the accuracies.

• 산업경영시스템학회지
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• 제22권50호
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• pp.23-32
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• 1999

Reliability and maintainability allocation in the analysis of the system's design, with the objective of planning and installing the individual components in such a way that the system performance is achieved. This paper has been made to solve an important task in reliability management of manufacturing systems within the general objective being to increase productivity while maintaining costs low. Thus, the purpose of this paper is to provide an analytical approach to determine an optimal reliability and maintainability allocation, trading off among system performance and parts investment costs. Two important considerations will be addressed in this regard : (ⅰ) determine the reliability and maintainability allocation of parts which maximizes a given production index, having fixed the total cost of investments ; and (ⅱ) determine the reliability and maintainability allocation which minimizes the total cost of investments, having fixed a minimum acceptable level of productivity. The procedure proposed in this paper is able to provide to managers and designers useful indications on the reliability and maintainability characteristics of parts in series -parallel systems. And this heuristic model is a decision support tool for contractors who are involved in large scale design projects such as ship and aircraft design. Numerical examples prove that an approximate expression of the average throughput rate is sufficiently accurate to be used in a numerical optimization method.

• 한국중재학회지:중재연구
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• 제26권3호
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• pp.67-91
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• 2016

In an era where the international investment and trade between Korea and China grow daily, the importance of international arbitration cannot be overstated. The Korean Arbitration Law was enacted with reference to the UNCITRAL Model Law. When the Chinese Arbitration Law was being enacted, the UNCITRAL Model Law was also referred to, but there are some discrepancies between the two. This article conducts comparative analysis based on the Korean and the Chinese Arbitration Laws, the Chinese Civil Procedure Law and the KCAB and the CIETAC arbitration rules. In order to adopt the UNCITRAL Model Law amended in 2006, Korea revised its Arbitration Law in 2016. The revised Law includes a more comprehensive legal regime regarding interim measures, emergency arbitrator, etc. In China, the enforcement of foreign-related arbitral awards and foreign arbitral awards is carried out mainly by intermediate people's courts. In China, the report system to the higher people's court for refusing the enforcement of foreign-related arbitral awards and for refusing the recognition or enforcement of foreign arbitral awards has the effect of safeguarding foreign-related arbitral awards and foreign arbitral awards in China. Both Korea and China joined the New York Convention, and domestic courts may refuse the recognition and enforcement of foreign arbitral awards according to the New York Convention.

• The Journal of Asian Finance, Economics and Business
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• 제8권5호
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• pp.839-850
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• 2021

Risk-adjusted return is believed to be one of the optimal parameters to determine an optimum portfolio. A risk-adjusted return is a calculation of the profit or potential profit from an investment that takes into account the degree of risk that must be accepted to achieve it. This paper presents a new procedure in portfolio selection and utilizes these results to optimize the risk level of risk-adjusted Islamic stock portfolios. It deals with the weekly close price of active issuers listed on Jakarta Islamic Index Indonesia for a certain time interval. Overall, this paper highlights portfolio selection, which includes determining the number of stocks, grouping the issuers via technical analysis, and selecting the best risk-adjusted return of portfolios. The nominated portfolio is modeled using Quadratic Programming (QP). The result of this study shows that the portfolio built using the lowest Value at Risk (VaR) outperforms the market proxy on a risk-adjusted basis of M-squared and was chosen as the best portfolio that can be optimized using QP with a minimum risk of 2.86%. The portfolio with the lowest beta, on the other hand, will produce a minimum risk that is nearly 60% lower than the optimal risk-adjusted return portfolio. The results of QP are well verified by a heuristic optimizer of fmincon.

• 한국산업융합학회 논문집
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• 제22권2호
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• pp.71-79
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• 2019

Since the announcement of President Klaus Schwab's fourth industrial revolution at the World Economic Forum in Davos, Switzerland in January 2016, the fourth industrial revolution has emerged as a hot topic in our society. The United States, Japan, China, and Germany, which are major advanced nations, are preparing and implementing a strategy and system for responding to the Fourth Industrial Revolution, focusing on information and communication technology (ICT) and manufacturing convergence in response to the fourth industrial revolution era. Korea is announcing the expansion of financial support for R & D investment budget and related industries for major technology related to revolution. In this paper, we analyze the defense R & D project procedure of the Defense Improvement Project, which is responsible for the development of the defense weapon system, and present the development direction of the defense weapon system in accordance with the 4th world industrial revolution trend.

• 한국산림과학회지
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• 제90권2호
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• pp.176-183
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• 2001

본(本) 연구(硏究)에서는 목재(木材)의 다목적(多目的) 생산량(生産量)(multiple-product yield) 예측(豫測)에 대한 해결책(解決策)으로서 테다소나무(Pinus taeda L.) 조림지(造林地)를 대상으로 하여 Weibull 직경분포(直徑分布) 수확예측(收穫豫測) 시스템을 개발(開發)하였다. 직경분포(直徑分布) 수확예측(收穫豫測) 모형(模型)을 개발(開發)하기 위하여, 4개의 백분위수(百分位數) 식(式)들을 근거(根據)로 한 모수(母數) 회복(回復)(parameter recovery) 절차법(節次法)을 적용(適用)하였다. 또한 직경급(直徑級)에 대한 수확량(收穫量) 계산(計算)을 위하여 단목(單木) 수고(樹高) 예측식(豫測式)을 개발(開發)하였으며, 그리고 단목(單木) 재적(材積) 예측식(豫測式)을 이용(利用)함으로써 직경급(直徑級)에 대해 기대되는 재적량(材積量)을 계산(計算)할 수가 있다. 본(本) 연구(硏究)에서 사용(使用)된 직경급(直徑級)에 대한 Weibull 누적함수(累積函數)의 상한선(上限線) 차이(差異) 방법(方法)이 기존(旣存)의 상한선(上限線)과 하한선(下限線)의 절차법(節次法)보다도 괄약오차(括約誤差)를 줄 일수 있는 보다 나은 절차법(節次法)이였다. 본(本) 연구(硏究)에서 제시(提示)된 Weibull 직경분포(直徑分布) 수적예측(收積豫測) 시스템에 대한 타당성(妥當性) 검정(檢定)의 한 방법(方法)으로서 Kolmogorov-Smirnov test 결과(結果), 각(各) plot당 예측(豫測)된 직경분포(直徑分布)와 관측(觀測)된 직경(直徑) 분포급(分布級) 사이에서 통계적(統計的) 유의성(有意性)이 없는 것으로 나타났다. 이와 같은 직경분포(直徑分布) 수확예측(收穫豫測) 시스템은 다목적(多目的) 목재(木材) 생산량(生産量) 예측(豫測)과 임분(林分) 구조(構造) 모형(模型) 및 임분(林分)의 경영(經營)에 유용(有用)한 정보(情報)를 제공(提供)할 것이다.

• 한국중재학회지:중재연구
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• 제15권1호
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• pp.3-26
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• 2005

Since the Agreement on Commercial Arbitration was signed by the Governments of South and North Korea last year, there has been quite a few discussions on the way for implementing the Agreement in both public and private sectors. The Department of Justice of South Korea was quite active in making the draft of arbitration rules representing the South Korean views in alliance with the Department of Reunification of South Korea and recently held an informal seminar to preview their draft. On the other hand, the Korea Arbitration Association, a main body of commercial arbitration which are composed of professors and lawyers, were carefully watching the steps and the draft made by the Department of Justice. The reasons are to assure that not only shall the commercial arbitration rules comply with comment norms of international arbitration but shall it be made to meet the needs of enterprises investing in the Special Economic District of Kaesung City in North Korea. The concerns of the Korea Arbitration Association can be accomplished if the Department of Justice would modify the provisions pointed out in the seminars. Five general principles shall be brought into the attention in promulgating the commercial arbitration rules. First, it should comply with the Agreement on Commercial Arbitration signed by South and North Korea. Second, it should accept common rules contained in UNCITRAL arbitration rules. Third, it should boost the promptness of proceedings when a case was filed. Fourth, it should feature unique aspects of trade between South Korea and Korea by differentiating it from purely international trade between a country and a country. Lastly, it should combine the respective rules of both South and North Korea, currently in effect. With the above five principles accomplished, it should be noted that the Agreement on Commercial Arbitration the upper authority of arbitration rules, mandates the following features. It declared that arbitration be processed by three arbitrators. Single arbitrator is not permitted. Arbitration can be adopted even if an arbitration clause does not exist in an agreement by the parties, provided that the dispute arose out of the scope of the Agreement on investment Guarantee signed by South Korea and North Korea. It excluded quick and simplified procedures even if the amount of claim in arbitration is minimal. All the procedures should take a formal procedure. It let the double administration offices operate. One is to sit in Seoul of South Korea and the other is to sit in Pyongyang of North Korea. This would intimidate the fastness of procedures. With the above principles and the features considered, each provision in the draft by the Department of Justice should be reviewed and suggested for change.

• 디지털콘텐츠학회 논문지
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• 제9권4호
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• pp.661-667
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• 2008

비즈니스의 역동성은 매 해마다 새로운 기술도입으로 인한 거시경제적 힘에 의해 변화되어 왔다. 이러한 역동성은 기업의 정보통신 투자에도 막대한 영향을 끼치고 있다. 오늘날 IT투자의 가장 중요한 목표는 단순히 생산비용을 낮추는 것이 아니라, 최적화된 대량 생산을 위해 고객들과 파트너들에게 기업의 유용성을 높이는 데 있다. 따라서 기업들은 확장된 기업의 프로세스를 자동화하고, 통합하고 최적화 하기 위해 BPM을 통한 모든 역량을 집중하고 있다. 또한 RFID 응용시스템을 이용하여 기술적 측면에 접근함으로써 비즈니스 확장을 위한 시스템 개발에 주력하고 있다. 그러나 기술적 측면, 비즈니스 프로세스적 측면, 조직적 측면을 함께 고려하여야 성공적인 기업 역량을 이룰 수 있다. 따라서 본 논문에서는 기술적 요소인 RFID 시스템을 통해 조직적인 측면을 고려하여 비즈니스 프로세스에 접근하기 위한 접근 방법론을 제안하였다. 또한, 상황 분석 방법론을 적용하여 업무 분류에 따른 최적화를 꾀하고자 하였으며, 전송된 관련 프로세싱 절차 및 형식을 통해 이후 발생되는 반복적 과정을 최소화할 수 있는 사례 기반 방식을 활용함으로써 시간 인력 비용 요소를 절감할 수 있었다. 제안한 방법론을 통해 비즈니스 프로세스 분석에서부터 시스템 설계 및 분석에 따른 시간 비용 품질 및 고객의 만족 수준에 혁신적인 개선을 이끌어낼 수 있기를 기대할 수 있었다.

• 대한치과보철학회지
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• 제52권1호
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• pp.18-26
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• 2014

연구 목적: 본 연구의 목적은 가장 최근에 수행된 치과의원의 경영 분석 자료를 바탕으로 상향식 방법을 적용하여 임플란트 원가를 산정하는데 있다. 연구 재료 및 방법: 본 연구에서는 진료행위 각각에 소요되는 직간접 비용을 모두 합산하는 상향식 방식으로 산출하였다. 상향식 원가계산의 경우 총원가는 인건비, 재료비, 관리비, 의료사고비용, 투자자본의 기회비용 등으로 구성이 된다. 이를 임플란트 원가 구성요소로 구분하면 인건비, 기공료, 재료비, 감가상각비 등의 직접비용과 관리운영비를 포함하는 간접비용, 치과의원 투자분에 대한 기회비용으로 구성된다. 결과: 상부보철물의 종류에 따라 금속관일 경우 1,449천원, 도재관일 경우 1,583천원, 오버덴쳐의 경우 2,471천원으로 산정되었다. 임플란트 원가는 인건비, 재료비, 관리비, 기타비용으로 나누어지는데 총 원가 중 인건비가 차지하는 비율은 50%, 재료비 33%, 관리비 15%, 기타비용2%로 나타났다. 이를 직접비, 간접비, 투자비용으로 구분하면 상부 보철물이 금속관일 경우 각각 원가의 83%, 15%, 2%를 차지한다. 결론: 전체 원가 중 인건비가 73만원(약 50%)으로 가장 많은 비중을 차지한다. 상향식 원가계산 결과 관행수가에 근접하게 나타났는데 금속관의 경우 145만원, 도재관일 경우 158만원 추계되었다.