• Proceedings of the Korea Society for Industrial Systems Conference
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• 1997.11a
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• pp.503-519
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• 1997

정보SYSTEM을 구축함에 있어서 많은 시간과 노력이 필요하다. 이에 반해 기대되는 효과는 예측하기 힘들거나 명확하지 않은 경우가 많다. S/W개발자의 약점이 개발에는 능하나 업무자체에는 둔감한 것이다. 이를 보완하기 위한 방법으로 업무를 진행하는 사람이 주가 되어 진행하는 개발방법론으로 CIM기법이 대두되었다. 이 기법을 이용하여 통합 정보SYSTEM을 구축하고 효과분석을 실시하였다.

• Journal of Korean Institute of Industrial Engineers
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• v.21 no.1
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• pp.85-101
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• 1995

Automated Guided Vehicles(AGVs) are widely used in computer integrated manufacturing(CIM) systems for material handling purposes. Although automated guided vehicles provide higher levels of flexibility and computer integrability, the installations are limited in number and one of the critical reasons lies in the complexity involved in the operation. The main objective of this research is to alleviate this problem by proposing efficient integrated operational control methods for AGV-based CIM systems. Particularly, this research is concerned with the mixed problem of dispatching automated guided vehicles and scheduling machines operation. The proposed dynamic heuristic algorithm uses various priority schemes and relevant information concerning the load of the system, the status of queues, and the position of AGVs in the scheduling process. The scheduling decision process is hierarchical in the sense that different decision criteria are applied sequentially to identify the most appropriate part to be served. This algorithm consists of two sections, the section of part selection by AGVs for the next service whenever an AGV completes the current assignment, and the section of part selection by machines for next service whenever a machine completes the current operation. The proposed algorithm has been compared with other scheduling schemes using the performance measure of mean flow-time and mean tardiness. Simulation results indicate that the proposed algorithm can reduce the mean flow-time and mean tardiness significantly.

• Journal of the Korean Society of Industry Convergence
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• v.8 no.2
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• pp.69-76
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• 2005

This study for Customer Satisfaction(Customer Focus) by Profit security' in the field Process improvement activity and man-power upgrade by DAS(DATA Acquisition System) in the Plant that is fusion Off Line and On Line(IT), Especially the basic of the most foundation in the beginning Step of Toyota system is 3-jeong(a standard instrument; right volume, right box, right position), 5S(Seiri, Seiton, Seisoh, Seiketsu, Sitsuke ; KAISEN, KANBNA System(for Logistic), Further more KPC has established the digital environment such as CIM ; Computer Integrated Manufacturing), IMS ; Intelligent Manufacturing System ERP ; Enterprise Resource Planning, DAS; Data Acquisition System, Autonomous QC & SPC etc,.) in order to realize the intelligent informatization, which is core base for obtaining the competitive power and for responding to the various 21C management environment in flexibility. In this digital management environment, continuously and powerfully they would advance for becoming the best of the world. For strategic changes to take place in industry 3 key important factors need to be included ; Integration of tasks function and process, Decentralization of information, Responsibility, Finally simplification of products and product structures.

• Journal of the Korea Society of Computer and Information
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• v.7 no.1
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• pp.147-153
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• 2002

A major problem in the adoption of advanced manufacturing systems such as C.I.M. (Computer Integrated Manufacturing) is the prerequisite economic justification Process because of high investment needed for the acquisition and installation of C.I.M. While some of the benefits expected are readily qualifiable, others are very difficult or even impossible, using conventional method. Thus the investment in C.I.M. should be considered as a strategic decision rather than a tactical decision which concerns with only financial implications. In this Paper we review papers on major justification techniques developed during the last decade and identify the benefits of C.I.M. and describe the considerations in the justification of C.I.M. Also we deal with the current and future research directions in justifying C.I.M.

• Asian-Australasian Journal of Animal Sciences
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• v.1 no.4
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• pp.223-232
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• 1988

Fifty-two wether lambs weighing 30 kg were randomly assigned to 5 treatment groups; 1) initial slaughter. 2) control-maintenance (CON-MT), 3) control-ad libitum (CON-AL), 4) cimaterol-maintenance (CIM-MT) and 5) cimaterol-ad libitum (CIM-AL). Ad libitum-fed animals had free access of a high-concentrate diet, whereas maintenance animals were restricted in feed intake to maintain the initial weight of 30 kg for 90 days. Cimaterol was administered in the feed at 10 mg/kg. Regardless of feeding level, the administration of CIM improved carcass weight (p < .05), dressing % (p < .01), longissimus muscle area (p < .01), leg conformation and muscling (p < .01), USDA yield and quality grades (p < .01) and protein concentration (p < .01) in carcass as well as in muscle. Cimaterol feeding decreased organ wt (p < .01), baekfat depth (p < .01), intramuscular fat and overall fatness. Cimaterol was effective for muscle accretion even under restricted feeding condition. The greater accretion of muscle was the result of the hypertrophy of both type I and type II muscle fibers but the hypertrophy of type II fiber (110%) was much greater than that of type I fiber (37%). Cimaterol feeding decreased muscle DNA concentrations but the number of nuclei per muscle fiber was not changed, indicating that the lower DNA concentration was due to the dilution effect caused by the hypertrophy of muscle fiber. As evidenced by lower flank streaking, lower marbling and darker muscle, CIM feeding adversely affected meat quality. Meat tenderness was also adversely affected, resulting in significantly (p H .01) tougher meat in CIM-fed animals.

• Korean Journal of Acupuncture
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• v.28 no.4
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• pp.17-28
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• 2011

Objectives : Burn is the important adverse effect of the moxibustion treatment. This research does with the purpose to utilize as basic data which the results of histological observation of the burn tissue which generates when operating various commercial indirect moxa (CIM) on the skin, evaluate the burn because of the surgical operation. Methods : It operated 6 kinds of CIM on the depilated abdomen of the rat. By using the H-E staining and TUNEL assay, the image was observed and analyzed. Results : It could be the moxibustion medical treatment using the CIM generated in the first degree burn until the third degree. And in some case, burn has not generated. By using the H-E stain, the second-degree burn and third degree was observed, and it was observed the first degree burn by using TUNEL assay. In the first degree burn, TUNEL reaction in the epidermal layer was confirmed. The damage to the dermal layer was observed in more than 2 degree burn. In the third degree, the tissue degeneration to the subcutaneous fat was observed but the thickness of the skin tissue was not observed. Conclusions : Basic data classifying the burn generated by the CIM treatment through the histological observation of the burn tissue caused by the CIM treatment were built according to this research result.

• The Journal of Society for e-Business Studies
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• v.4 no.1
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• pp.87-101
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• 1999

To operate the automatic devices of manufacturing process more effectively and to solve the needs of the resource sharing, network technology is applied to the control devices located in common manufacturing zone and operated by connecting them. In this paper, functional standard of the network layers are set as physical and data link layer of IEEE 802.2, 802.4, and VMD application layer and ISO-CIM reference model. Then, they are divided as minimized architecture, designed as group objects which perform group management and service objects which organizes and operates the group. For the stability in this network, this paper measures the variation of data packet length and node number and analyzes the variated value of the waiting time for the network operation. For the method of the analysis, non-exhausted service method are selected, and the arrival rates of the each data packet to the nodes that are assumed to form a Poission distribution. Then, queue model is set as M/G/1, and the analysis equation for waiting time is found. For the evalution of the performance, the length of the data packet varies from 10 bytes to 100 bytes in the operation of the group management network, the variation of the wating time is less than 10 msec. Since the waiting time in this case is less than 10 msec, response time is fast enough. Furthermore, to evaluate the real time processing of the group management network, it shows if the number of nodes is less than 40, and the average arrival time is less than 40 packet/sec, it can perform stable operation even taking the overhead such as software delay time, indicated packet service, and transmissin safety margin.

• Journal of The Korean Astronomical Society
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• v.35 no.4
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• pp.221-227
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• 2002

Cassegrain interface module (CIM) of the fiber-fed high resolution echelle spectrograph has been designed and manufactured for the 1.8 m reflector at the Bohynsan Optical Astronomy Observatory. We also constructed a long slit spectrograph attached to this CIM, which would replace the earlier rather inefficient medium dispersion spectrometer. We present detailed description for design and manufacturing concepts of the CIM which consists of a slit assembly, slit monitoring system, calibration lamp system and a long slit spectrograph, in order to provide how the overall system and each part. are constructed. The preliminary performance test carried out so far seems to indicate a successful result.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 1998.10a
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• pp.535-549
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• 1998

오늘날 급격한 경영환경의 변화로 인해 제조업의 효율적인 운영이 더욱 어려워지고 있다. 기업내에 새로운 기술을 도입하고자 할 경우, 해당 기업이 추구하고 있는 전략은 물론이고 그것이 실제로 운용되어지는 제조구조에 적합하지 않으면 경제적 효과를 얻지 못할 가능성이 크다. 본 연구에서는 사업전략·제조구조, CIM기술간 적합성 개념이나 시너지 효과(synergy effect)를 밝혀내고자 하였다. 따라서 각 차원에 따른 유형들이 상호보완적인 집합임에 착목하여 , 두 차원간 부합성 정도의 결과치가 어떠한 순위를 나타낼 것인지 조사하였다. 또한 세 차원 사이의 선택적 결합에 따른 상황적응성이 제조기업의 성과에 얼마만큼이나 영향을 미치고 있는지 검증해 보았다. 특히 한·일 제조업의 경영시스템을 경쟁전략·제조체계·CIM기술간 적합성 측면에서 살펴봄으로써, 상이한 경영환경하의 양국 제조기업이 각각 어떤 특성을 지니고 있는지 파악하고자 시도했다.

• Journal of the Korean Society for Precision Engineering
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• v.17 no.10
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• pp.41-48
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• 2000

Manufacturing devices must be integrated for constructing CIM environment, but integration of heterogeneous system meets several economical and technological difficulties. In this case, MMS(Manufacturing Message Specification) can be an effective method, but it has problems which MMS products are generally very expensive and majority of the existing manufacturing devices do not support MMS. This paper describes the development of a gateway for Non-MMS-Compatible CNC machine tools to serve MMS and the implementation of OSI(Open System Interconnection) upper layer on TCP/IP. The developed system is applied to construct cell controller with heterogeneous devices under CIM environment and to evaluate interoperability and portability.