• Title/Summary/Keyword: CIM

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A study on a strategical model of Computer Integrated Manufacturing (CIM의 환경구축에 관한 전략적 모형연구)

  • 조석환
    • The Journal of Information Technology
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    • v.1 no.1
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    • pp.133-153
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    • 1998
  • This study investigates the reasons why firms choose to adopt CIM technologies and the decision making process involved in justifying them. In addition, factors that contribute the successful implementation of CIM are identified. Finally, this suggests a strategical model based on the above result of analysis with investigating the justification, evaluation, implementation, and adaptation of CIM.

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A Study on the CIM Justification (CIM구축의 타당성평가에 관한 연구)

  • 한성배;이석주;이순효
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.18 no.34
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    • pp.51-60
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    • 1995
  • The key competition factor of manufacturing industries has progressively changed from cost to quality and time. Recently, the manufacturing environments more rapidly change than before. So, many companies want to introduce a advanced manufacturing system like CIMS to meet various user's needs and short delivery. But there is a considerable gap between the decision to invest and the achievement of promised benefits. Managers, generally, cannot afford CIM invesment unless they can determine beforehand that CIM will work in thier company and that will provide a coherent strategy and satisfactory return on investment In many cases, it is impossible to justify CIM investment by only economical analysis. Decision making problems like CIM investment are of a multiple objective nature. So, decision making process and multiattribute utility function are very useful methods to evaluate CIM justification In this paper, we described the key functions of CIM justification evaluation using IDEF methodology and developed the applicattion procedure of DMP and MUF method for CIM justification.

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A Study of GID Standards and the CIM XML Interoperability Test (CID 표준 및 CIM XML 상호 운용성 테스트 방안 연구)

  • Jung, Nam-Joon;Song, Jea-Ju;Oh, Do-Eun;Ko, Jong-Min
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.1877-1878
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    • 2008
  • 고품질, 고 신뢰도를 지향하는 미래 지능형 전력시스템에 대한 기대와 함께 전력 기기 및 설비의 디지털화에 관심이 집중되면서, 전력시장에서는 전력정보의 양방향 교환 표준을 위한 공통정보모델(CIM : Common Information Model)의 개발 및 활용이 새로운 화두로 부상하였다. CIM은 차세대 전력시스템과 미래형 부가서비스 등의 전반적인 운영측면에서 혁신을 이루는데 사용할 수 있도록 표준화된 데이터교환 모델이다. 이는 전력시스템 내 모든 다양한 객체(변전소, 송전선, 변압기, 차단기, 설비자산, 작업지시, 작업원 등)들이 어떻게 상호 연결되는지를 표현하는 방식이다. 최근 CIM/GID(GID : Generic Interface Definition)에 대한 관심이 고조되면서 CIM/GID를 어떻게 도입하고 활용할 것인가에 대한 논의가 활발하다. 그 활용 방안의 일환으로 개발된 시스템에 대한 상호 운용성 테스트를 수행함으로써 제품 또는 시스템의 표준화 준수 여부와 활용성에 대한 검증이 가능하다. CIM/GID 상호운용성 테스트는 UCA International Users Group에서 가입 회원들을 대상으로 지속적으로 진행되고 있다. 본 논문에서는 미국 클리블랜드에서 2003년 11월 18일$\sim$20일 사이에 진행되었던 5차 CIM/GID 상호운용성 테스트 결과를 토대로 CIM/GID와 CIM XML의 상호 운용성 테스트 방안을 소개하고자 한다.

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Study of a Open Cell Controller for CIM (Open셀제어기 개발을 통한 CIM시스템 구축을에 관한 연구)

  • 최경현;김성청
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.04a
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    • pp.422-425
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    • 1997
  • Computer Integrated Manufacturing (CIM) is undoubtedly one of the most influential concepts to have been introduced into the manufacturing world in recent times. The successful CIM application is greatly depended on the way of the approach to given manufacturing environments. This paper reports a new approach in building CIM systems trough the development of a poen cell controller.

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An expert system for controlling CIM operation (CIM 공장의 운용 통제 전문가 시스템)

  • 김성식;이태진;김재만
    • 제어로봇시스템학회:학술대회논문집
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    • 1992.10a
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    • pp.801-805
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    • 1992
  • Due to the inherent complexity in the CIM operation, achieving the triple, meeting duedates, maximizing machine utilization, and maximizing system throughput simultaneously is practically impossible. Targeting the small-to-medium size industries of Korea, we propose an exrert system that 'provides a good and practical solution to the CIM operation problems. Heavy consideration has given to the real-time and dynamic nature of CIM in the development process of the system. The system is under testing stage at KU-FMS, model CIM plant.

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A Study on the Mediating Role of the Customer Information Management Process in the CRM (CRM에서 고객정보관리 활동의 매개적 역할에 관한 연구)

  • Lee, Sang-Kon;Yoon, Yeo-Joong
    • Journal of Information Technology Applications and Management
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    • v.14 no.1
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    • pp.161-178
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    • 2007
  • Nowadays, Customer Relationship Management (CRM) has been a competitive edge of many companies. It is critical for companies to get and maintain profitable customers. For the purpose of sustaining this competitive edge, companies should manage the Customer Information (CI) more effectively The major goais of this research are 1) to identify the activities of the Customer Information Management (CIM) and the factors influencing on the CIM, 2) to show the relationship between the proficiency of the CIM and the CI Quality, and 3) to verify the mediating effects of the proficiency of the CIM Process between the influencing factors and the CI Quality. An empirical study was undertaken to test the hypotheses with data from 65 companies. Multiple regression analysis and ANOVA were employed to test the hypotheses. We found that 1) there are 6 activities in the CIM process and 5 factors affecting the CIM, 2) the proficiency of the CIM process is closely related to the CI Quality, and 3) the proficiency of the CIM process plays the mediator between the influencing factors and the CI Quality.

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A Study About Distribution Automation System Based on CIM (CIM 기반의 Distribution Automation System에 관한 연구)

  • Lee, Hee-Joo;Seo, Jeong-Il;Han, Ju-Hyun
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.60 no.5
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    • pp.913-920
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    • 2011
  • Distribution systems for operating the various systems should be operated organically. Distribution systems for organic operations extend the functionality of the system and system integration for the extension is doing. However, in systems integration for each unique non-standard definition of linkage and exchange systems are used. Non-standard definition of a unique linkage and exchange systems in the maintenance and expansion will result in many negative results. To solve these problems, the system and the exchange of information about the links between systems should define standards. IEC (International Electrotechnical Commission) power to solve these problems in the field of the Common Information Model (Common Information Model, CIM) standard (IEC61970, IEC61968) is defined as the transmission and distribution system integration and standardization for the exchange of information. In this paper, standardized system for building CIM-based distribution automation system should describe the process of building. In addition, the process of establishing a common information model needed (CIM) defined and associated services for a defined set of models is proposed in the standardization process.

A Study of Attitude Determination Techniques for Satellite (위성체의 자세결정기법에 관한 연구)

  • Cho, K.R.;Suh, D.H.
    • Journal of Advanced Navigation Technology
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    • v.2 no.2
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    • pp.100-106
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    • 1998
  • The cone intercept method (CIM) is generally used for attitude determination of a spin-stabilized satellite. The method is popularly used on a transfer orbit, but it is well known that it can also be used for the geosychronous orbit. In this paper, the CIM is applied to the geosynchronous orbit and its performance and limitations will be investigated from the results. The CIM impliments two sensors (Sun and Earth sensors). The Sun sensor finds the angle between the spin-axis and the direction vector to the Sun and the Earth sensor does the angle between the spin-axis and the direction vector to the Earth. By using these two cone angles, the CIM gives the direction of the spin-axis of the satellite.

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Development of an Object-Oriented Simulator for Evaluating Object-Oriented CIM S/W (객체지향 제조관리 시스템 평가를 위한 객체지향 시뮬레이터 개발)

  • 백준걸
    • Journal of the Korea Society for Simulation
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    • v.8 no.1
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    • pp.1-18
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    • 1999
  • Current CIM systems need to correspond flexibly to the frequent change of demands of the customers and the fast changing informations about the production environment. The demands have brought forth CIM systems developed using object-oriented technology, with reusability, expansibility, and flexibility for the system components. Due to the fact that the OO-CIM system has been developed based on an incomplete data, the constructed system must be implemented to the actual surroundings to see how pertinent it is. Hence, this paper presents an OO-simulator as a means to evaluate the pertinency and the efficiency of the developed CIM system. The OO-simulator can determine the problems likely to occur when a developed CIM system is implemented to the actual site and evaluate the efficiency beforehand. Such properties will decrease the cost of CIM system development and increase the reliability of the system. This paper presents a framework for an OO-simulator composed of a virtual factory component embodying the characteristics of a virtual factory, a connector component for the interface between the CIM system and the simulator, a configuration component for modeling the constituent structure of the CIM system, and a timer component in charge of the time advance for the simulation.

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Chondrogenesis of Human Adipose Tissue Derived Mesenchymal Stem Cells (ATMSCs) Seeded in Gelatin-Chondroitin-Glucosamine Scaffold (Gelatin-Chondroitin-Glucosamine Scaffold에 접종한 인간지방조직-유래 중간엽 줄기세포의 연골형성)

  • Kim, Eung-Bae;Hong, Soon-Gab;Do, Byung-Rok;Kim, Hae-Kwon;Lee, Joon-Yeong
    • Development and Reproduction
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    • v.15 no.2
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    • pp.99-111
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    • 2011
  • The present experiment was performed to evaluate the chondrogenic differentiation potential of human adipose tissue-derived mesenchymal stem cells (ATMSCs) in the chondrogenic induction medium (CIM) with transforming growth factor-${\beta}1$ (TGF-${\beta}1$) and to evaluate the chondrogenic differentiation of ATMSCs seeded in gelatin-chondroitinglucosamine scaffold (GCG-scaffold). ATMSCs and mouse chondrocytes were cultured in the basic medium and CIM without TGF-${\beta}1$ (CIM1) or with TGF-${\beta}1$ (CIM2) for chondrogenic differentiation potential. The chondrogenic differentiation of ATMSCs was evaluated by glycosaminoglycan (GAG) synthesis and histochemical staining. In pellet culture, GAG synthesis of ATMSCs and chondrocyte was increased in culture on 14 days, but higher in CIM1 than basic medium, especially highest in CIM2. Cartilage matrix was observed in ATMSCs cultured in CIM2 on 14 days by Safranin O and trichrome staining. In well plate culture, proliferation of ATMSCs was continuously increased in culture on 10 days and higher in CIM than basic medium. The cell adhesion rate of ATMSCs seeded in flask or scaffolds was continuously increased during culture period, but higher in scaffold than flask. GAG synthesis of ATMSCs seeded in scaffolds showed no change in control group. In the CIM groups, GAG synthesis of ATMSCs was continuously increased than control group during culture period, especially very high in CIM2 and in the GCG-scaffold was slightly higher than the gelatin scaffold (G-scaffold). The present results demonstrated that ATMSCs showed an low chondrogenic differentiation potential, compared to mouse chondrocytes for 14 days of culture. TGF-${\beta}1$ is important factor in chondrogenic differentiation of ATMSCs. Gelatin scaffold was considered to increasing the effective chondrogenic differentiation environment. ATMSCs seeded in GCG-scaffold was more effective in chondrogenesis than in G-scaffold. Conclusively, the present results demonstrated that the treatment of chondroitin and glucosamine in the scaffold was more effective to promote the cartilage matrix formation.