• Journal of Navigation and Port Research
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• v.26 no.4
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• pp.455-463
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• 2002

In 1990s the debate on very large ships made the Mega ship and mega port concept emerge. Many studies have bees done on such big ships by consultant, naval architects, port designers, ship operators, economists etc,. with different points of view and results. This paper, by reviewing the literature systematically, identifies limitations and major issues, and suggests directions for further studies.

• Journal of the Korea Safety Management & Science
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• v.14 no.2
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• pp.167-176
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• 2012

This research studies the present status of utilization of IT in SMB, Small & Medium Business, logistics companies, and analyzes the examples of utilizing Excel VBA for building and operating IT system in SMB logistics companies. Through the study, this research suggests main issues of building and operating logistic systems and the effective way of utilizing the systems in SMB logistics companies.

• Proceedings of the Safety Management and Science Conference
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• 2011.11a
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• pp.181-189
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• 2011

This research studies the present status of utilization of IT in SMB, Small & Medium Business, logistics companies, and analyzes the examples of utilizing Excel VBA for building and operating IT system in SMB logistics companies. Through this study, this research suggests main issues of building and operating logistic systems and the effective way of utilizing the systems in SMB logistics companies.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07a
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• pp.922-924
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• 2005

최근 리더기가 RF를 이용하여 사물에 부착되어있는 전자태그를 인식하는 비접촉 기술인 RFID(Radio Frequency identification)기술을 대형 물류, 제조업 등에 확대 적용함에 따라 기업 공급망의 가시성이 높아지고 효율적인 관리가 이루어지고 있다. 하지만 RFID 태그가 널리 보급됨에 따라 태그간의 충돌문제가 대두되고 있다. 본 논문에서는 태그간의 충돌문제(Anti-collision problem)를 최소화 할 수 있는 알고리즘을 제시한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.10a
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• pp.947-948
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• 2018

ICT 기술이 발전함에 따라 다양한 분야에서 사물 인터넷을 활용한 서비스들이 구현되고 있다. 그중에서 비콘을 이용한 위치기반서비스(Location-Based Service)는 산업분야에서 활용성이 높다. 스마트 팩토리에서 비콘을 제품이나 박스에 부착하여 통합 물류관리를 시스템을 구축하고, 병원에서는 환자의 상태 혹은 위치를 모니터링하기 위해 비콘을 활용한다. 위치기반서비스를 구현하기에 있어 비콘의 위치를 파악하는 기술이 선행되어야 하고 본 논문에서는 신경망 학습(Neural Network)을 활용하여 RSSI(Received Signal Strength Indication) 기반 비콘의 위치를 추론하는 기법에 대해서 연구한다. 신경망 학습결과 94.89%의 위치 정밀도를 보였다.

• Journal of the military operations research society of Korea
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• v.27 no.2
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• pp.25-36
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• 2001

In this paper a new heuristic algorithm has been developed and presented for logistics for multiple objectives in an automated manufacturing systems. We proposed Simallest Processing and Average setup time Ratio First(SPARF) algorithm for multiple criteria under sequence setup time. The heuristic algorithm is implemented on the various problem cases by number of jobs and machines. The proposed algorithm provided smaller than the previously documented heuristics. The results obtained show a superior solution by the new heuristic over previous heuristics on all problem sizes. we perform analyses of variance to fortify the above results of comparison with the previous algorithms to the four cases using Statistical Analysis System(SAS) package. The results show that the larger is the number of groups or cells, the bigger is the amount of improvement by the proposed algorithms. It suggests that the algorithms proposed is strongly influenced by the number of cells, groups and interaction of these factors.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.05a
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• pp.561-564
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• 2004

유무선 컨텐츠를 사용하는 사용자에게 유지 관리의 일관성을 제공하고 기업간 정보 교환을 원활히 할 수 있기 위해서는 데이터베이스의 검색 내용을 XML 문서로 생성하는 작업이 필요하다. 이러한 목적으로 본 연구에서는 관계-객체 맵핑을 기반으로 하여 자동 생성 도구를 설계하였으며, 연구된 시스템은 데이터베이스 설정, 스키마 매핑, XML 생성기 등 세 개의 부시스템으로 구성된다. 본 연구 결과는 XML 문서를 이용한 유무선 컨텐츠 제작과 이종 데이터베이스간 자료 교환이 필요한 구매, 영업, 물류 등의 다양한 응용 분야에서 이용될 것으로 기대된다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2021.05a
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• pp.159-160
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• 2021

From the simulation results, under the collaborative platform of big data based on coordination of the beer industry to mobilize the supply chain operation condition, supply chain direct logistics inventory are in a relatively stable value, and there is no zero inventory or even a serious lack of beer in the stock situations like traditional beer supply chain operation, which avoid the situation of demand information expansion caused by chain inventory levels report because of the serious lack of supply.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.261-263
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• 2019

"선용품"이라는 용어는 선박에서 사용되는 모든 관련 기계적 부속품(SPARE)와 소모성 자재(STORE)를 통칭하여 부르는 용어이다. 자동차나 다른 기계류와 달리,선박은 원양을 운항하기에 긴급하거나 급박한 상황의 발생으로 기부속에 대한 수요가 발생할 경우 긴밀하게 대응하기가 어려운 환경에 놓여져 있다. 본 연구에서 연구자는 공급지 결정을 가능하게 하기 위해, 실제 보급사례들을 바탕으로 데이터를 분석하고, 각 선주사 및 선박관리업체 측을 대상으로 설문조사를 실시하여, 그 결과를 분석해 선박의 선용품 보급지 결정방안을 일반화 하고자 한다 .

• Journal of the Korea Society of Computer and Information
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• v.14 no.8
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• pp.145-152
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• 2009

Manufacturer's competitiveness in the MRO industry, which is to stimulate the growth of the business-to-business e-commerce market, has recently become more important. A nuclear parts manufacturer was supplying products based on irregular demand from clients which differs from ordinary MRO business practices. The reason for this is the Nuclear Parts Manufacturer has fallen behind the e-commerce performance of other industries, and they lack global competitiveness due to the low efficiency of the individual companies within it. In this study, we developed an MRO based a-Marketplace system to minimize repetitive ordering of raw materials, lack of reusability and inefficiency of transaction processing which was a result of the former legacy business practice, In order to accomplish the purpose of this study, we implemented a web based automated CR system which considered the characteristics of the nuclear parts manufacturing: the system has sub modules such as ordering, product management, transaction management, warehousing and raw material handling. As a consequence of the system implementation, H corporate successfully automated ordering of raw materials, quotation processing and inventory management compared to the legacy business process, achieving increased efficiency by reducing wasteful resources.