• Journal of the Korea Safety Management & Science
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• v.12 no.3
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• pp.177-182
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• 2010

Industrial business environments have rapidly changed and face severe competitive challenges. The effective inventory system enables to product and deliver the products quickly for meeting due date of customer's order in this environment. This study have developed a web-based inventory system using RFID for an injection molding industry. The system analysis inventory problem issues such as inventory planning, warehouse assignment and assist to develop production scheduling. In this study, web-based inventory system using Java language and RFID technology is proposed and implemented. As the result of implementation of the system, we expected that it manages to inventory planning continually and systematically.

• Proceedings of the Korea Database Society Conference
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• 1999.10a
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• pp.175-181
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• 1999

Edelstein(1994)이 제시한 플라이언트/서버 아키텍쳐가 표준으로 자리잡은 가운데 최근 국내에서는 김영걸, 박영면[1995]과 문태수, 정윤[1997]교수가 클라이언트/서버 채택을 위한 상황모델을 제시하였다. 그런데 최근 정보기술의 급속한 발전 상황(특히, 데이터베이스 관리 시스템 분야, 클라이언트/서버 기술 등)은 현재 클라이언트/서버 아키텍쳐와 클라이언트/서버 채택을 위한 상황모델을 설명하는 데 있어서 약간의 어려움을 주고 있다. 따라서 본 논문에서는 클라이언트/서버 아키텍쳐의 보완을 제안하고, 현재까지의 상황 모델에 대한 해석에 있어서의 오류를 지적하여 새로운 모형과 그 해석을 제시하고자 한다. 그 전에 현재까지의 구조와 모델을 고찰 및 비판할 것이다.

• Journal of Korean Institute of Industrial Engineers
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• v.40 no.1
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• pp.108-117
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• 2014

This study considers warehouse sizing decisions in an integrated single vendor-single buyer production inventory system by incorporating new decision variables and constraints associated with warehouse size into the formulations. Two typical inventory control policies proposed in the literature (i.e., Identical Delivery Quantity and Deliver What is Produced) have been investigated with consideration of warehouse investment costs. The numerical study shows that Deliver What is Produced is less flexible than Identical Delivery Quantity, resulting in the conclusion that the latter would be preferable when considering warehouse investment costs.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.591-592
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• 2023

본 논문에서는 다양한 시장 요구사항에 따른 공간적 효율성과 유연한 관리 시스템이 내장된 스마트 적재창고를 제안한다. 적재창고는 공간 활동의 최적화를 요구하는 동시에 높은 수준의 비용 효율성을 갖추어야 한다. 그리고 자동화된 애플리케이션이 기존 창고 및 공급만 운영보다 중요하며 스마트 팩초리와 연계하여 부품 재고파악과 입출고를 효율적으로 담당해야 한다. 본 논문에서는 수직강성을 최대 300kg를 견딜 수 있는 수직형 자동적재창고를 구현한다. 연구의 결과는 스마트팩토리 등의 자동화 장비 구축을 통한 생산성 향상에 도움이 될 것으로 사료된다.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.525-528
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• 2003

In recent, Information Technology(IT) is the biggest issue on the world at large including construction industry as core strategic means for reinforcing competitive power of company and nation and raising its effectiveness. However, CEO of each finn is deferring IT investment decision because there's no case to measure real value of IT and confidence to economic effect of information system. IT Evaluation will be so helpful that most construction finns make a plan of IT investment. and it is necessary to achieve their management goal and have the maximum of firm's value with the usage of IT system. Therefore, The purpose of this research is to promote the increase of IT investment and the improvement of the standard in IT with the development of IT evaluation system to be monitoring IT level continually.

• The Journal of the Korea Contents Association
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• v.12 no.3
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• pp.295-310
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• 2012

The purpose of this research is to examine qualitative and quantitative performance on SCM. To validate our research model, five hundred survey questionnaires were distributed to the companies that have implemented SCM systems for at least one year. A total of 153 valid responses were obtained. In this research, we were to derive influencing factors of SCM performance, modelize the mutual influential relationship between them, and look into the influential relationship influencing the SCM performance. Moreover, we tried to analyze difference of financial ratios after adopting SCM. The results of the research can be summarized as follows. Change management had a significant impact on information system quality and SCM performance, and, information system quality had a significant impact on SCM performance. And, the difference of financial ratio was existed after the adopting SCM. Moreover, inventory turnover rates, ROI, ROA were increased, and labor costs to sales was decreased.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.1
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• pp.22-30
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• 2008

Warehouse has many changes for the stocks by entering and taking. Management about the stocks is important. To manage, sensor network based on RFID is deployed in warehouse. Sensor network uses fluster based on energy and hierarchical routing. Supporting mobility between clusters makes guarantee connectivity for mobile nodes.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2009.05a
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• pp.173-176
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• 2009

국가 과학기술 경쟁력 재고를 위하여 R&D기관에서 생성되는 연구데이터를 종합적으로 관리하고 서비스하는 데이터 관리/서비스 시스템의 개발의 필요성이 증대되고 있다. 이에 따라 본 연구에서는 VKH (Visible Korean Human) 데이터를 3차원으로 시각화 서비스하는 플랫폼을 제안하고 구현한다. VKH 데이터는 사망과 동시에 급속 냉동한 인간의 신체를 0.2mm 간격으로 절단하며 촬영한 방대한 양의 실사 이미지 데이터베이스이며, 전통적인 생물학, 의학 분야의 연구뿐만 아니라, 현실감 있는 3D 이미지 구축을 위한 기반 데이터로 이용되고 있다. VKH 데이터 기반의 3D 데이터 시각화 플랫폼은 사용자 접근 편의성을 위하여 웹을 기반으로 구현되고, 트리 형식의 인체 구조 온톨로지와 연동하여 해당하는 인체 구성 요소를 체계적으로 관찰하는 기능, 사용자의 원하는 인체 구성 요소들만을 3D 화면에서 조합하고 관찰하는 기능, 위키피디아 백과사전을 참조하는 기능을 포함한다. 현재 인체의 머리 부분 3D 데이터를 대상으로 플랫폼이 구축되고 있으며, 향후 전체 인체를 대상으로 서비스할 예정이다.

• Journal of the Korean association of regional geographers
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• v.17 no.2
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• pp.245-258
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• 2011

Best management practices (BMPs) are widely accepted and implemented as a mitigation method for soil erosion and non-point source problems. Estimating the amount of soil erosion and the effectiveness of BMPs using hydrological models help to understand the condition, identify the problems, and make plans for conservation practices in an area, typically a watershed. However, the accuracy and reliability of assessment of BMP impacts estimated by hydrological models can be often questionable due to the uncertainties from various sources including GIS(Geographic Information System) data, scale, and model. This study reviewed the development and the background of hydrological models, and the modeling issues such as the selection of models, scale, and uncertainties of data and models. This study also discussed the advantage of a small scale and spatially distributed model to estimate the impacts of BMPs.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.48 no.4
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• pp.61-67
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• 2011

In these days, RFID adoption in supply chain management system needs technically part of the performance improvement of RFID Anti-Collision technology. We contrived new scanning algorithm that improve RFID Anti Collision performance, also can be applied to existing RFID readers. In this paper, the proposed algorithm were applied to the actual logistics scene recognition performance much better than the existing practices are presented. For improve of RFID Anti Collision performance, our algorithm implemented in the middleware associated with RFID PDA readers, and actually mount the RFID inventory data from the experiment were accumulated. Through this experiment, the proposed algorithm was confirmed that helps to minimize unaware area of the existing RFID inventory system and significantly improves performance of RFID field solution.