• 한국물환경학회지
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• 제33권3호
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• pp.359-369
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• 2017

Water distribution systems supply drinking water to consumers' taps. Internal corrosion of metallic pipe used in drinking water distribution systems has reduced water quality and led to increased levels of toxic heavy metals such as lead, copper and nickel. These problems have been experienced to varying degrees by water utilities in many countries. North America has successfully managed and controlled pipe corrosion and corrosive water in water distribution system based on various policies, regulations and rules. Practical and engineering guidelines for evaluation of pipe corrosion and determination of treatment options are also provided to assist drinking water supplies. In addition, the corrosion mechanism in water distribution systems, such as the complex effects of physical and chemical parameters on the corrosion pipes has been improved to accurately predict corrosion rates of metallic pipes in actual water distribution systems. This paper reviews various regulations, policy statement, and treatment produces on controlling corrosion in drinking water distribution systems in US and Canada and then offers suggestion for management of corrosive water and pipe corrosion in drinking water distribution system in Korea.

• 유통과학연구
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• 제12권7호
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• pp.63-75
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• 2014

Purpose - This study analyzes topics discussed in the International Journal of Consumer Studies through a content analysis, to reveal the impact of cross-cultural management in consumer research. Research Design, Data, and Methodology - The International Journal of Consumer Studies has the highest impact factor among international consumer journals, and was chosen for research. This study investigated 712 articles, covering a ten-year period. Results - A total of 82 articles were found to be related to cross-cultural management, out of 712 articles. This shows a need for improvement in the area of cross-cultural management, and implies that the discipline of cross-cultural management will continue to have a significant impact on consumer studies. Conclusions - While content analyses have been conducted in the area of consumer research in the past, a comparative content analysis in the International Journal of Consumer Studies is unprecedented. This study offers insights on the comparative analysis of general articles and articles related to cross-cultural management, which will be useful reference points for future global markets and fields in distribution and consumer research.

• 유통과학연구
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• 제8권4호
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• pp.5-15
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• 2010

본 연구에서는 한국유통과학회가 발행하고 있는 유통과학연구에 게재된 논문의 연구 동향을 분석하고 학회지의 질적 향상을 위한 시사점을 제시하고자 하였다. 즉, 유통분야의 학문체계를 분류하여 연구동향을 분석하고, 유통 관련 다른 학회지와 비교한 후 유통과학연구의 질적 향상을 위한 시사점을 도출하고자 하였다. 특히, 한국유통과학회는 1999년 「유통과학연구」 제1권 제1호 창간을 시작으로 2010년 9월 제8권 제3호까지 총 109편의 논문을 게재하였다. 109편의 논문을 대상으로 연구주제, 연구 주체, 연구 참여자의 수, 연구방법론, 국문 및 영문논문 빈도, 내국인 및 외국인 참여빈도, 참고문헌 활용 등에 대하여 분석하였다. 추가적으로 유통을 연구대상으로 하는 한국유통학회의 유통연구 및 한국유통경영학회의 유통경영학회지와 유통과학연구를 비교 분석하여 발전방안을 모색하고자 한다. 결론적으로 유통과학연구의 연구동향 및 유사 학회지의 비교 분석을 바탕으로 다음과 같은 시사점을 제시하고자 한다. 먼저, 유통과학연구가 SSCI를 준비하기 위해서는 해외 투고자를 적극 유치해야한다. 또한, 영문논문의 비중을 대폭 늘려야 할 것이다. 셋째, 학술지의 질 향상을 위한 다양한 연구방법론 수용을 해야할 것이다. 넷째, 유통과학연구의 피인용율울 확대하기 위하여 학술지의 해외 공급을 원활하게 할 수 있도록 구글 등 웹검색 기능을 보강해야 할 것이다. 이상의 시사점을 통한 개선을 한다면 국내 뿐 아니라 해외에서도 인정받는 세계적인 학술지 반열에 올라설 수 있을 것이다.

• 산업경영시스템학회지
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• 제31권3호
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• pp.110-116
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• 2008

Operational strategy for inventory control in the distribution system has been given attention. If an individual enterprise implements the strategy, it is not easy to gain scale merits because of limited quantity or burden of inventory. In this study, we propose an operational strategy for inventory control that considers managerial integration of regional distribution centers (RDCs) and present a model of it. In a network of several RDCs, they could share inventory information and supply parts for others in case of an inventory shortage. And a numerical example of the network is illustrated, which compares two operational strategies, integration management of RDCs and individual management of them. The result shows total cost reduction in the strategy of integration management through the efficient inventory control of multi-echelon distribution.

• 전기학회논문지P
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• 제66권1호
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• pp.33-37
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• 2017

This paper describes the modeling of the failure rate estimation technique for applying the asset management technique to electric power facilities. There are many modeling techniques to estimate the failure rate. In this paper, the characteristics of the normal distribution, exponential distribution, weibull distribution, and piecewise linear functions are discussed. When evaluating reliability, the evaluation may be less meaningful if the sample data is insufficient. Therefore, Weibull distribution and piecewise linear function are adopted as the most suitable functions for estimating the failure rate of power facilities and the resulting failure rate function is derived.

• 상하수도학회지
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• 제29권2호
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• pp.223-231
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• 2015

District Metered Area (DMA) construction is one of the most cost effective alternatives for management of water loss (i.e., water leakage) and energy consumption (i.e., water pressure) in water distribution systems. Therefore, it's being implemented to numerous new and existing water distribution systems worldwide. However, due to the complexity of water distribution systems, especially large-scale and highly looped systems, it is still very difficult to define the optimal boundary of DMAs considering all the aspects of water distribution system management requirements. In this study, a DMA design methodology (or a DMA design model) was developed with Geographic Information Systems (GIS) and hydraulic distribution system model to determine the optimal DMA boundary.

• 대한안전경영과학회지
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• 제10권1호
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• pp.139-144
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• 2008

Recently, a multi-facility, multi-product and multi-period industrial production-distribution planning problem has been widely investigated in Supply Chain Management (SCM). One of the key issues in the current SCM research area involves reducing both production and distribution costs. We have developed an optimization model to tackle the above problems under the restricted conditions such as transportation time and a zero inventory. Computational experiments using commercial tool Ms-Excel Solver show that the real size problems we encountered can be solved in reasonable time. The model can be used to decide an appropriate production-distribution planning problem in SCM research area.

• 융합경영연구
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• 제3권2호
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• pp.21-28
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• 2015

The purpose of the study was to investigate state and problems of Seongnam Jungang Market that lost competitiveness under rapidly changing logistics environment, and to give market redevelopment model, project validity and operation management plan considering commercial area and location of the market. The public market at the community that has tradition and culture of the residents provides small merchants with employment chance and to let residents buy daily necessities. The market allows farmers to sell agriculture products by themselves and to increase income. Most of public markets that open every five days help residents meet each other to exchange information. Most of public markets have been placed at local towns and rural areas to lose distribution functions remarkably at less population and quick aging.

• 유통과학연구
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• 제15권1호
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• pp.123-130
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• 2017

Purpose - This research aims to examine the effect of e-business adoption on firm's growth and profitability in the distribution industry. The value added from the distribution industry acts as the cost of other industries. As the distribution industry develops, its stage becomes shorter and the distribution margin becomes smaller. Therefore, e-business is expected to have a different effect on the distribution industry than other industries. Research design, data and methodology - The previous research generally used e-business adoption as an independent variable and firm's performance as a dependent variable. This study elaborated the model using a dynamic panel model that includes the performance variable of the previous year as an independent variable. By employing system GMM (Generalized Method of Moments), the endogeneity problem in the dynamic panel model can be solved. For the analysis, I extracted the distribution companies as the raw data in the National Statistical Office's Business Activity Survey over the period 2006 to 2012. Results - The growth rate of firms adopting e-business was 0.299%p higher than that of the non-adopter. However, only ERP (Enterprise Resource Planning), KMS (Knowledge Management System) and SCM (Supply Chain Management) contributed positively to the growth rate. In the case of profitability, it was 0.04%p higher than the distribution companies that did not adopt e-business. ERP and LMS (Learning Management System) improve profitability, while SCM reduces profitability. Consequently, while ERP improves both growth and profitability, SCM improves growth but reduces profitability. In addition, KMS improves firm's growth only, and LMS does only profitability, showing that each e-business has a differentiated effect. Conclusions - Since the distribution industry has different characteristics from manufacturing and other service industries, the introduction of e-business may not guarantee the growth and profitability of distribution companies. Careful introduction considering the characteristics of the distribution industry is required. In particular, it is necessary to select an e-business meeting the characteristics and needs of a distribution company, and thereafter, it is required for the company's own efforts to internalize it within the system.

• 대한안전경영과학회지
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• 제10권4호
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• pp.241-245
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• 2008

Every single company in the world makes a huge amount of effort so as to not only cut down the physical distribution cost but promote the efficiency. In the government's respect, especially, they expect to maximize the synergy by unifying the physical distribution. For that reason, it relevant for all kinds of a distribution strategy to get rid of unnecessary distribution centers and to integrate distribution centers by unifying and rearranging the distribution centers that are hardly efficient. Most enterprises in Japan, related to making and distributive, have got a tendency to decentralize their distribution centers in a wide scope of the whole nation. In the meantime, they seem to get a move to become a great-sphere distribution center. Many similar cases in Korea, Koon-Po distribution center, Yong-In distribution center, are not expected to function properly. With a rate of trading products expanded, a new strategic physical distribution is needed to turn the way of depending on building up a new distribution center into the way of unifying and rearranging a distribution center. Therefore, this study aims to identify the optimal method of unifying and rearranging a distribution center, compared to the cost which takes place in a large number of distribution centers.