• 한국정보통신학회논문지
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• 제11권6호
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• pp.1207-1213
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• 2007

기존의 수도설비의 밸브실과 유량계의 관리는 기계적이고 숙련자의 경험적인 방식으로 이루어져 왔다. 그러나 USN 기반의 실시간 수도설비 모니터링 시스템을 활용한 시설물 관리는 안전성과 정확성을 제공함으로서 양질의 수자원을 관리하는데 기술적인 발전을 가져올 수 있다. 따라서 본 연구는 USN(Ubiquitous Sensor Network)과 CDMA(Code Division Multiple Access) 망을 이용한 수도 시설물의 안전 관리 시스템에 관하여 연구하였다. 수도 설비 중에서 밸브실과 유량계실을 대상으로 유량계, 압력센서, 진동센서, Co센서, 온 습도센서들의 RFID(Radio-frequency identification) 센서로 구성된 USN을 구성하고, USN으로부터 실시간으로 수도 시설물 정보 및 수(水)처리 측정 정보를 수집하여, CDMA망을 통해 원거리 관제 시스템에 전송한다. USN 기술을 이용하여 수도설비를 관리함으로서 현장에서의 편리성, 안전성, 정확성을 높여 더욱 효율적이고 안정적으로 깨끗한 수돗물을 공급하는데 기여할 수 있다.

• International Journal of Computer Science & Network Security
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• 제21권12spc호
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• pp.443-450
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• 2021

The study is devoted to the formation of a economic principles cargo delivery management in global supply chains. Mathematical model of delivering special categories of goods by road is a key element of these principles. The article analyzes the existing studies on solving the problem of cargo delivery in various aspects. It was noted that the greatest attention is paid to legal regulation, last mile delivery, optimization of routes and delivery schemes, information support, technological innovations, cluster routing, etc. In the developed mathematical model a minimum of total costs of forming loading units and freight shipments was defined as the criterion of optimality of organizing delivery by motor transport. The authors propose the creation of logistics clusters allowing the integration of urban transport flows and global supply chains.

• 통상정보연구
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• 제10권3호
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• pp.221-238
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• 2008

This paper examined the supply chain management partnerships factors and business performance in textile industry. To build a global network, we should consider the following critical factors such as lead-time reduction, information sharing, and inventory management. The purpose of this study is to focus on QR (Quick Response) of SCM in textile industries to clarify which of the SCM factors contribute to business performance for the SCM firms. Based on the analysis of eighth-six cases, the following results were found. First, partnerships factors of supply chain management have a positively significant influence on responsiveness of supply chain management. Second, partnerships factors of supply chain management have a positively significant influence on flexibility of supply chain management. This study suggests that partnerships are main factors for the business performance. Especially, our empirical evidence shows that capacity of firms practicing SCM, information techniques, and partnerships make the firms' business performance more responsive and flexible.

• 한국농공학회논문집
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• 제62권3호
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• pp.1-13
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• 2020

The management of agricultural water can be divided into management of agricultural infrastructure and operation to determine the timing and quantity of water supply. The target of water management is classified as water-supply facilities, such as reservoirs, irrigation water supply, sluice gate control, and farmland. In the case of agricultural drought, there is a need for water supply capacity in reservoirs and for drought assessment in paddy fields that receive water from reservoirs. Therefore, it is necessary to analyze the water supply amount from intake capacity to irrigation canal network. The analysis of the irrigation canal network should be considered for efficient operation and planning concerning optimized irrigation and water allocation. In this study, we applied a hydraulic analysis model for agricultural irrigation networks by adding the functions of irrigation canal network analysis using the SWMM (Storm Water Management Model) module and actual irrigation water supply log data from May to August during 2015-2019 years in Sinsong reservoir. The irrigation satisfaction of ponding depth in paddy fields was analyzed through the ratio of the number of days the target ponding depth was reached for each fields. This hydraulic model can assist with accurate irrigation scheduling based on its simulation results. The results of evaluating the irrigation efficiency of water supply can be used for efficient water distribution and management during the drought events.

• Industrial Engineering and Management Systems
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• 제13권1호
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• pp.15-28
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• 2014

Evaluation of the implementation and performance of a firm's green supply chain management (GSCM) is an ongoing process. Balanced scorecard is a multi-criteria evaluation concept that highlights implementation and performance measures. The literature on the framework is abundant literature but scarce on how to build a hierarchical framework under uncertainty with dependence relations. Hence, this study proposes a hybrid approach, which includes applied interpretive structural modeling to build a hierarchical structure and uses the analytic network process to analyze the dependence relations. Additionally, this study applies the fuzzy set theory to determine linguistic preferences. Twenty dependence criteria are evaluated for a GSCM implemented firm in Taiwan. The result shows that the financial aspect and life cycle assessment are the most important performance and weighted criteria.

• 한국IT서비스학회지
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• 제10권1호
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• pp.47-64
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• 2011

In the IT(Information Technology) service, which supply the solutions related to business management and IT, network construction and application trends, the related service business are increasing according to the enlargement of project scope and the diversity of project types as the need of service customers. In this paper, I propose the significant effect factors on the network management of IT service firms. The key findings are from the analysis result about 94 IT service firms as follows. For implementation the high performance of network management in the IT service firms, the strategic elements in the process of network construction are more conceived highly than the basic element in them. Also the perspective of project objectives are considered than the nominal perspectives in the partner selection process. The competency of partner firms', the cooperation process between the partner firms', network relation operation management and network relation structure management are the significant effect factors of network management.

• Journal of Forest and Environmental Science
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• 제32권2호
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• pp.173-181
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• 2016

This study designed a model of the efficient production schemes and raw materials transportation optimization of current South Korean's simple and monolithic distribution system of wood to build a SCM (supply chain management) as a basic level to establish a distribution of future by pellet production of raw materials costs and reduce transport costs, and specifically to forest of pallet to contribute to revitalizing the market. The result of each transportation costs after building the best transportation network from raw material supply area to demand area applying transport law was 964,600 thousands Won from 6 supply areas to 7 demand areas. And the result of each model's analysis to get the pellet's efficient production through production cost reduction showed that it reduced from 325,701 Won/t to 240,106 Won/t, results of existing efficient pellet for the production model 8,233 tons over 20,000 tons annual production capacity from the size of the expanded production capacity when the expansion. However, when the production size expanded to 50,000 Tons of the production, the effect was very small even though production cost decreased.

• 대한안전경영과학회지
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• 제11권4호
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• pp.193-199
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• 2009

Recently, an 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 is reverse logistics network. This study have developed a simulation model for the reverse logistics network. The simulation model analysis reverse logistics network issues such as inventory policy, manufacturing policy, transportation mode, warehouse assignment, supplier assignment. Computational experiments using commercial simulation tool ARENA show that the real problems. The model can be used to decide an appropriate production-distribution planning problem in the research area.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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• pp.268-270
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• 2013

The construction project can be defined as a network combined between elements which are engineering, procurement, construction, start-up, and has a plenty of subjects and partners. For the successful project management in construction industry, it is necessary to adopt various management methods, such as lean production, information network system, SCM(Supply Chain Management), which can increase the efficiency of project management. During recent years, even though various management techniques have been applied, the SCM system has not formulated in construction industry. Especially, the Nuclear Power Plant Construction which requires high regulations of the safety and security has not applied SCM. Therefore, this study aimed to propose technology area of SCM in Korean Nuclear Power Plant Construction.

• 디지털융복합연구
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• 제18권6호
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• pp.109-120
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• 2020

디지털화가 수반되지 않는 공급망은 마케팅, 상품개발, 제조, 물류 및 고객에의 상품 인도라는 여러 단계가 서로 독립적으로 수행되는 과정에 불과하다. 디지털화는 이런 여러 단계 간의 벽을 허물고, 모든 이해관계자 집단에게 투명하고 통합된 네트워크로의 변신을 가능하게 한다. 디지털 공급망관리의 최종 목표는 속도와 가시성이다. 이를 목표 달성을 위해서는 다양한 공급망 테크놀러지가 요구되는데, 여기에는 통합계획수립 및 운영체계, 공급망 애널리틱스, 자율적 물류관리, 스마트 물류센터와 스마트 팩토리 등이 포함된다. 이런 기술들은 예상치 못한 운영조건의 변동사항에 대한 가상 시나리오를 구축하고 이에 대한 솔루션을 제공함으로써 공급망 상의 변동에 대응할 수 있는 역량과 예측력을 강화시킨다. 본 연구에서는 공급망의 디지털화에 대한 여러 연구결과를 제시하고 현실적으로 기술도입 과정에서 제기되는 여러 이슈에 대한 논의를 시도해 보고자 한다. 연구결과에 대한 시사점도 함께 제시한다.