• Title/Summary/Keyword: Chain Management#1

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An Efficient Management of Sediment Deposit for Reservoir Long-Term Operation (1) - Reservoir Sediment Estimation (저수지 장기운영을 위한 퇴적토사의 효율적 관리(1) - 저수지 퇴사량 산정)

  • Ahn, Jae Hyun;Jang, Su Hyung;Choi, Won Suk;Yoon, Yong Nam
    • Journal of Korean Society on Water Environment
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    • v.22 no.6
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    • pp.1088-1093
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    • 2006
  • In this study, the method of annual sediment estimation for reservoir long-term operation is proposed. Long-term daily precipitation and evaporation are predicted by Markov Chain. Using these values, reservoir inflow is simulated by NWS-PC model. Reservoir sediment load is estimated by sediment rating relation curve which is observed. From the simulation results, it was found that each simulated value by Markov Chain and NWS-PC was well compared to the observed ones and also estimated reservoir sediment was appropriate to the compared values using empirical equations. It is thought that the proposed method for estimation of reservoir sediment can be useful used to operate the reservoir.

A Study on the Application of SCOR model for Integrated Defense Logistics System (군 통합물류체계 구축을 위한 SCOR모델 도입방안 연구)

  • Kim, Jeong-Hyeok;Choi, Seok-Cheol
    • Journal of the military operations research society of Korea
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    • v.31 no.1
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    • pp.73-92
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    • 2005
  • The SCOR(supply chain operations reference) model which is a management tool, has been developed to describe the business activities associated with all phases of satisfying a customer's demand. The model is able to successfully describe and provide a basis for supply chain improvement. In this paper, we review the SCOR model, the present status of the Korean defense logistics system, and suggest an application of the model for the integrated defense logistics system.

e-Logistic와 SCM

  • 조범구
    • Proceedings of the Korean DIstribution Association Conference
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    • 2000.10a
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    • pp.1-13
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    • 2000
  • 공급 사슬 관리 (Supply Chain Management, 이하 SCM)란, 원자재를 구매하여(Buy), 완제품을 생산하고(Make), 이를 유통 채널을 통하여 운송/보관하며(Move/store), 최종 소비자에게 판매하는(Sell)데 포함되는 비즈니스 네트워크를 다룹니다. (중략)

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A Study on Measurement of Mechanical Properties of Polyther Polyol Base Polyurethane Dispersion by 1,4-butanediol Chain Extension (Polyether Polyol을 이용한 수분산 폴리우레탄의 1,4-butanediol 사슬연장에 의한 물성변화)

  • Lee, Joo-Youb
    • Journal of the Korean Applied Science and Technology
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    • v.31 no.4
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    • pp.711-718
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    • 2014
  • In this paper, the mechanical property change was investigated by adding 1,4-butanediol as chain extender of polyurethane dispersion for leather coating. Reagents for the synthesis were polypropylene glycol(PPG), isoporon diisocyanate(IPDI), dimethylolpropionic acid(DMPA) and 1,4-BD. All samples showed good solvent resistance and flexibility by different content of the 1,4-BD. As results, samples which contains a lot of 1,4-BD showed good properties whth strength of $1.80kg_f/mm^2$ and abrasion test measurement of 49.54 mg.loss. According to elongation test, the sample which contains low amount of 1,4-BD was good property as 364 %.

Supply Chain Coordination in 2-Stage-Ordering-Production System with Update of Demand Information

  • Kusukawa, Etsuko
    • Industrial Engineering and Management Systems
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    • v.13 no.3
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    • pp.304-318
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    • 2014
  • It is necessary for a retailer to improve responsiveness to uncertain customer demand in product sales. In order to solve this problem, this paper discusses an optimal operation for a 2-stage-ordering-production system consisting of a retailer and a manufacturer. First, based on the demand information estimated at first order time $t_1$, the retailer determines the optimal initial order quantity $Q^*_1$, the optimal advertising cost $a^*_1$ and the optimal retail price $p^*_1$ of a single product at $t_1$, and then the manufacturer produces $Q^*_1$. Next, the retailer updates the demand information at second order time $t_2$. If the retailer finds that $Q^*_1$ dissatisfies the demand indicated by the demand information updated at $t_2$, the retailer determines the optimal second order quantity $Q^*_2$ under $Q^*_1$ and adjusts optimally the advertising cost and the retail price to $a^*_2$ and $p^*_2$ at $t_2$. Here, decision-making approaches for two situations are made-a decentralized supply chain (DSC) whose objective is to maximize the retailer's profit and an integrated supply chain (ISC) whose objective is to maximize the whole system's profit. In the numerical analysis, the results of the optimal decisions under DSC are compared with those under ISC. In addition, supply chain coordination is discussed to adjust the unit wholesale price at each order time as Nash Bargaining solutions.

A Solution for Sourcing Decisions under Supply Capacity Risk (공급능력 리스크를 고려한 최적 구매계획 해법)

  • Jang, Won-Jun;Park, Yang-Byung
    • Journal of Korean Institute of Industrial Engineers
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    • v.42 no.1
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    • pp.38-49
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    • 2016
  • This paper proposes a mathematical model-based solution for sourcing decisions with an objective of minimizing the manufacturer's total cost in the two-echelon supply chain with supply capacity risk. The risk impact is represented by uniform, beta, and triangular distributions. For the mathematical model, the probability vector of normal, risk, and recovery statuses are developed by using the status transition probability matrix and the equations for estimating the supply capacity under risk and recovery statuses are derived for each of the three probability distributions. Those formulas derived are validated using the sampling method. The results of the simulation study on the test problem show that the sourcing decisions using the proposed solution reduce the total cost by 1.6~3.7%, compared with the ones without a consideration of supply capacity risk. The total cost reduction increases approximately in a linear fashion as the probability of risk occurrence or reduction rate of supply capacity due to risk events is increased.

A Study on the Effect of Sustainable Supply Chain Activities on the Performance of Supply Chain Participants -Focusing on the performance creation process of suppliers and buyers- (지속가능 공급망 활동이 공급망 참여 기업의 성과에 미치는 영향에 관한 연구 -공급사 및 구매사의 성과창출 과정을 중심으로-)

  • Park, Eun Shil;Choi, Do Young
    • Journal of Digital Convergence
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    • v.20 no.1
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    • pp.107-117
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    • 2022
  • This study aims to examine the relationship between the economic, environmental and social activities of sustainable supply chains and the customer satisfaction and customer retention rate, which are the final results in the supplier's operational performance and the buyer's market performance. The survey was conducted on employees in charge of supply chain management, purchasing company, partner company, and logistics management in the company. The final 193 valid data were analyzed to verify the research hypothesis. The results of the study showed that the economic and social activities of the sustainable supply chain had a positive effect on the supplier performance and the purchaser performance, but environmental activities had a negative effect on the supplier performance. In addition, the purchasing company performance has a positive effect on customer satisfaction and customer retention rate. This study provides a theoretical basis for sustainable supply chain activities to affect the operating performance of suppliers and the market performance of buyers, and suggests implications for enhancing the competitiveness of companies through the performance creation process that affects customer performance.

The Study on the Effect of Interfirm Collaboration On Logistics Performance in Supply Chain -Focusing on the Steel Pipe Industry- (공급사슬에서의 기업 간 협력이 물류성과에 미치는 영향에 관한 연구)

  • Choi, Soo-Hyung;Choi, Jin-Hyeug
    • Management & Information Systems Review
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    • v.30 no.4
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    • pp.229-251
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    • 2011
  • This paper will discuss the significance of cooperation between supply chain companies and its components. In addition, it will analyze how this effects the outcome in distribution focusing on companies in the steel pipe industry. In sum, theory 1 was chosen since as a result of hierarchical regression analysis communication, IT, partnership, and success monitoring, which are all components of the supply chain cooperation, are proven to affect the absolute distribution success positively. According to the standardized beta coefficient the most important factor for distribution success is communication, followed by IT, partnership and lastly success monitoring. Moreover, according to theory 2, communication, IT, partnership and success monitoring all affect relative distribution success positively. Most important factors are communication, IT, partnership, success monitoring. Thus, since the most crucial factor in deciding both the absolute and relative distribution success is communication, steel pipe companies are advised to execute strategic use.

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The Impact of SCM and e-SCM on Change Acceptance Capability, Information Sharing Capability, Partnership Management Capability and Business Performance (SCM과 e-SCM이 변화 수용, 정보 공유, 파트너십 관리 능력 그리고 비지니스 성과에 미치는 영향)

  • Choi, Soo-Ho;Kim, Dong-Il
    • Journal of Industrial Convergence
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    • v.20 no.1
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    • pp.1-12
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    • 2022
  • This study analyzed the impact of supply chain management (SCM) and e-SCM on change acceptance capability, information sharing capability, partnership management capability, and business performance. This study and analysis were conducted targeting the employees of companies that introduced SCM and e-SCM in the metropolitan area and provinces. Change Acceptance Capability, Information Sharing Capability, Partnership Management Capability and Business Performance and the degree of relationship, between outcome variables, which are characteristic factors of SCM, were analyzed through a research model. Based on the survey results, nine research hypotheses were postulated, and the reliability, validity, and importance were examined. The research results supported by the research hypothesis can be summarized in two ways as follows. First, the company's capabilities were analyzed as major variables such as Acceptance Capability, Information Sharing Capability, Partnership Management Capability, and Business Performance. Second, the degree of relationship was analyzed in detail by classifying the necessary competencies in SCM into 4 categories, not the competencies of a specific company. This study is expected to provide appropriate information to SCM-related companies.

A Study about the Relation of Product Environment and Supply Chain Structure (환경과 공급체인 구조와의 관계에 관한 연구)

  • 문성암;곽신영;박성훈
    • Journal of Distribution Research
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    • v.7 no.1
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    • pp.41-59
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    • 2002
  • Analysis about supply chain structure was achieved in product unit that is not 'business' dimension that is existent discussion target in surrounding and supply chain structure as that this study analyzes positively how supply chain structure according to business surroundings of product changes. This can do that analysis of product unit in synthetic supply chain management is essential when recognize the importance that supply chain management must consist by product special quality according to corporation's each product. Sort product environment and studied relation with supply chain structure to achieve study purpose hereupon. Structure variable of supply chain drew through existent literature study here. Executed question investigation for supply chain by product for study that is actual proof enemy, and figure method used analysis of variance (ANOVA) mainly. If summarize result of study, result that analyze relation between business environment of product and supply chain structure, according to business environment of product, showed that supply chain structure changes. Certified that relation of two group (environment group of uncertain product and environment group of stable product) of business environment of product and structure variable (that is number of participant of supply chain, lead time of supply chain, about administration's independence, response points of supply chain) of supply chain is significant relation all from all structure variables except number of participant of supply chain. Variable that express length of supply chain from structure Variable of supply chain is number of participant of supply chain and lead time of supply chain, and variable that display monitoring or trust aspect for supply chain is administration's independence degree and response points of supply chain. As analysis result, product that environment is uncertain is appearing more shortly than product that length of supply chain stabilizes, and also, monitoring or trust aspect for supply chain was proved that is consisting abuzzer than product that stabilize. Therefore, showed that put essential point in administration of 'hierarchy'putting first than 'market' when business environment designs supply chain structure in case of uncertain product, and proved that the other side business environment is focusing in administration way of 'market' putting first in case of stable product.

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