• Title/Summary/Keyword: 공급계획

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Optimization of the Distribution Plan and Multi-product Capacity using Genetic Algorithm (유전 알고리즘을 이용한 다 제품 생산용량 및 분배계획 최적화)

  • Cha, Youngcheol;Lee, Gapsoo;Lee, Jonghwan;Wie, Do-Yeong
    • Journal of Digital Convergence
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    • v.12 no.6
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    • pp.125-134
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    • 2014
  • Supply Chain Management(SCM) is getting important, because size of the company is getting bigger and the kinds of product are various. In the case of manufacturing corporation, for the optimization of SCM, we have to make production and distribution plan by considering the various fluctuation in the aspect of integration. In this paper, first, It proposed the reasonable operational way of the SCM about when the customer's demanding is various and demanding expectation fluctuates in capacity standardization of producer stage. Second, the paper proposed the management way for demanding by considering confirmed demanding information, related inventory expense and demanding shortage expense when we make production and distribution plan. The paper applied the genetic algorithm proved for current usefulness. it proposed the optimal operational way for SCM by dividing into 2 ways for dealing with the duration of confirmed demanding information and various fluctuation.

Application of Fuzzy Linear Programming to Estimate the Potentiality of Domestic Long-Term Wood Supply (국내 장기목재공급 잠재력 예측을 위한 퍼지선형계획법의 적용)

  • Won, Hyun-Kyu;Kim, Young-Hwan;Lee, Kyeong-Hak;Jang, Kwang-Min
    • Journal of Korean Society of Forest Science
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    • v.99 no.6
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    • pp.802-807
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    • 2010
  • The objective of this study was to estimate potential of domestic long-term wood supply by using fuzzy linear programming (FLP). In order to construct a numerical formula model, maximization of total timber production was used for the objective function. Size limit of harvesting and sustained yield were used as the constraints. The results of comparison between LP and FLP were shown that LP is more suitable than FLP in terms of the amount of timber production and final forest stock. However, as long-term sustained yield was limitedly achieved by using LP, FLP was more desirable for prediction of potential wood supply. According to the results of this study, the potential of annual domestic wood supply was estimated about 10.5 million cubic meters. Gyeong buk, Jeon nam, Gangwon and Gyeong nam province were highly ranked in order of provincial potential of wood supply.

A decomposition heursitic of a multi-period, multi-stage vehicle scheduling problem (분할해법을 이용한 다기간, 다단계 차량일정계획 문제에 관한 연구)

  • Gang, Gyeong-Hwan;Lee, Byeong-Gi;Lee, Yeong-Hun
    • Proceedings of the Korean Operations and Management Science Society Conference
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    • 2004.05a
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    • pp.450-453
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    • 2004
  • 본 연구는 리드타임이 상이한 다단계의 공급 사슬에서 수송비용과 재고비용을 최소화하는 다기간의 차량일정계획 수립에 관한 연구이다. 일반적인 공급사슬모형과 차량일정계획 문제를 통합한 모형으로서, 각 단계의 가용차량과 차량 용량이 제한된 제약조건하에서 비용을 최소화하는 차량일정을 구하는 문제이다. 본 연구에서는 이에 대한 최적화 수리모형과 2단계의 분할해법을 제시하였으며, 다양한 공급사슬모형에 대한 발견적 기법의 성능을 분석하였다.

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A Study on the Validity and Utility of Urban Plan Facilities for Prevention of Disaster (재해예방을 위한 도시계획시설의 타당성과 효용성에 관한 연구)

  • Choi, Woong;Park, Jeong Yong;Kim, Young Gyun
    • Journal of Korean Society of societal Security
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    • v.4 no.1
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    • pp.57-65
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    • 2011
  • Studying the operation of urban control plan and control program of urban plan facilities to present development direction of urban plan in the future by performing multi-variate analysis, the research acquired the following conclusion. It is required to institutionally activate the inhabitants' participation by reflecting spontaneous participation and opinion of inhabitants to adminstration so that the effect of business can be maximized in the stage of establishing urban control plan. Furthermore, the participation of role dividing type is necessary to adjust and connect the interest of expert that has experience in practical business of overall urban plan, inhabitant and self-governing body. It is required to reduce the service supplied by government so as to enhance policy of plan-first and development last for facilities with high importance and utility such as road, park and water supply/sewage, etc as well as to seek control program that expands the participation of private sector for administration for which private service is possible.

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Strategic Environmental Impact Assessment for Development Basic Plan Considering complex Characteristics of Soil - Focused on the Bogeumjari housing supply plan and an urban management plan - (토양의 복합적 특성을 고려한 개발기본계획 전략환경영향평가 - 보금자리주택계획 및 도시관리계획을 중심으로 -)

  • Yang, Jihoon;Park, Sun Hwan;Yoo, Keunje;Kim, Tae Heum;Hwang, Sang Il
    • Journal of Environmental Impact Assessment
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    • v.25 no.2
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    • pp.155-164
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    • 2016
  • Soil has been recognized as an important resource due to its finitude and valuable functions. Therefore, many countries have adopted soil quality related indicators in Strategic Environment Impact Assessment(SEIA). However, Korean SEIA has used limited indicators such as soil contamination until now. In this study, the SEIA on "Development Basic Plan" was modified for considering complex characteristics of soil and applied to "Bogeumjari Housing Supply Plan" and "Urban Management Plan". The performance of the SEIA considering soil characteristics was evaluated using a checklist for assessing consistency with upper plan, adequacy of alternatives, and feasibility of siting. Soil organic matter and soil erosion were derived as main indicators for "Basic Development Plans". The proposed SEIA technique equipped with soil indicators is proved to contribute to the soil resource conservation.

A study on Business Process Model for Extended and Integrated Supply Chain Planning : Focused on Negotiation (확장.통합된 공급사슬계획에서 협상을 위한 비즈니스 프로세스 모델에 관한 연구)

  • 강윤철;정한일;박진우
    • The Journal of Society for e-Business Studies
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    • v.9 no.1
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    • pp.105-122
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    • 2004
  • The advance of information technology has changed the business environment, and the business process between the trading partners has been evolved with these changes. However, the business process between trading partners requires human interface for interchanging information or making a decision even though they collaborate each other or are coupled tightly, and this interrupts seamless business processes between them. To overcome this limitations, a new concept of self-integration has been emerged. The self-integration means a true integration among enterprise applications without human interface, and it might be the future direction of integrations. In this study, we introduced the concept of self-integration environment and business process model for supply chain planning. And, we analyzed the negotiation processes and classified the negotiation patterns for integrated supply chain planning in self-integration environment, and then we proposed a generic business process model for negotiation of extended and integrated supply chain planning by integrating the suggested negotiation pattern with business scenarios.

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A Establishment of Plan for water supply in the Agricultural Purpose of Bank-high Reservoir (농업용 둑높임저수지 용수공급 계획 수립)

  • Lee, Kwang-Ya;Kim, Hae-Do;Han, Kuk-Heon;Lim, Hyung-Chang
    • Proceedings of the Korea Water Resources Association Conference
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    • 2012.05a
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    • pp.438-438
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    • 2012
  • 우리나라의 용수사용의 48%를 차지하고 있는 농업용수는 저수지와 양수장 보 등을 이용하여 농경지에 용수를 공급하고 있다. 이 중 농업용저수지는 18,000 여개에 이르고 있으며, 전국에 산재되어 하천의 중 상류부에서 농경지에 용수를 공급하는 역할을 수행하고 있다. 유역의 중상류부에 위치한 농업용저수지의 용량을 증대시키는 사업인 "농업용저수지 둑높이기사업"은 이 치수측면에서 농업지역 관개용수의 공급과 함께 하천유지용수의 공급이고, 더불어 재해측면에서 취약한 농업용저수지 보강을 목적으로 하고 있다. 둑높이기사업 이전의 저수지운영은 못자리용수가 들어가는 시기인 4월 중순부터 5월 중순경의 모내기 기간 동안에 가장 공급량이 많게 하면서 관개용수의 원활한 공급을 위한 운영을 해 왔으나, 둑높임저수지의 경우는 영농기간이 종료되는 시기인 9월 중하순을 기준으로 하천유지용수 공급을 위한 저수지 운영이 필요하게 되었다. 농업용저수지는 관개기 시점의 저수량이 이수안전을 위한 중요한 요인이며 하천유지용수의 공급을 감안할 경우 관개기 종료 시점의 저수량 도 중요한 의사결정 요인이 된다. 이 에 본 연구에서는 용수목적별 공급을 위한 둑높임저수지 운영곡선을 계획하는데 있다. 운영곡선의 기본적인 의사결정기준은 영농시점인 4월의 저수지 수위와 영농 종료시점인 10월의 수위이다. 둑높임저수지의 운영은 영농이 종료되는 시점인 10월을 기준으로 저수용량을 최대한 확보해야 하며, 다음연도 관개시작일인 4월을 기준으로 농업용수 수위가 확보 될 수 있도록 저수위조절이 필요하다. 따라서 본 연구에서는 저수지 관리자가 상기와 같은 조건을 만족하면서 해당 저수지를 운영하도록 하기 위해 비관개기동안에 하천유지용수를 최대한 공급하면서도 다음 4월에 농업용수 필요수량을 충족할 수 있는 수위를 가질 수 있도록 운영곡선 가이드라인을 수립하였다. 본 연구를 통해 작성된 운영곡선을 프로그램화하여 모의조작 할수 있는 기반을 만든다면 농업용수의 원활한 공급을 바탕으로 하류하천의 하천유지용수 공급을 갈수기에 최대한 공급할 수 있으며 향후 예상되는 기상조건에 따른 주단위, 월단위의 용수공급계획수립이 가능할 것으로 기대된다.

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