• 한국컴퓨터정보학회논문지
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• 제4권1호
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• pp.54-61
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• 1999

실제 생산환경에서는 MRP JIT 그리고 OPT 생산시스템을 상호 보완적으로 사용할 필요가 있으므로 3가지 생산시스템의 역할을 분석하고, 이를 기초로 동적생산체계에 적합한 Hybrid생산시스템을 설계하는 것은 충분한 의의를 갖는다고 할 수 있다. 그러므로 본 연구에서는 개별시스템이 가지는 제조방식의 유용성과 한계성을 분석하고 생산시스템을 전략적 차원. 전술적 차원 그리고 운영적 차원으로 구분하여 Hybrid화를 시도하였다. 그리고 Hybrid시스템의 유용성을 증명하기 위하여 MRP, JIT 그리고 OPT시스템의 개념이 포함된 Hybrid시스템에 대한 Simulation을 실시하였으며, 그 결과 독립적인 개별시스템 보다 Hybrid시스템이 더욱 효과적임을 입증하였다.

• 한국산학경영학회:학술대회논문집
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• 한국산학경영학회 2005년도 추계학술발표대회 발표논문집
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• pp.29-46
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• 2005

최근에 국내에서 TPS(Toyota Production System)에 대해 기업이나 제조업 관련 사람들에게 많은 관심을 불러일으키고 있다. TPS는 일본형 생산시스템의 대표적 모델이며, 21세기 후반 생산기술 분야에 많은 기여를 하고 있으며 그 성과 역시 높은 평가를 세계 여러 기업으로부터 받고 있다. 본 연구에서는 TPS의 기본 개념과 특성 그리고 적용 절차 등 TPS의 현재 모습을 통해 기존의 TPS가 안고 있는 문제점과 한계를 조명하고자한다. 이를 통해 현재의 TPS를 앞으로도 지속적으로 적용하고 경쟁력 있는 시스템으로 발전시키기 위한 방안으로 NEW JIT 기법을 활용하고자한다. NEW JIT는 고객제일의 품질관리를 목표로 판매, 개발 그리고 생산의 각 부분의 업무프로세스를 혁신하는 것이다. 하드웨어 시스템으로는 TMS, TDS, TPS로 구성되며, 소프트웨어 시스템은 과학적 SQC(TQM-S)를 이용한 TQM의 전개로 이루어진다. 따라서 앞으로 차세대 제조관리기술을 위해 NEW JIT 기법을 보다 더 우리의 기업환경에 적합하도록 활용할 수 있는지를 검토하고 연구 발전시켜야 한다.

• 산학경영연구
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• 제19권1호
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• pp.93-114
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• 2006

최근에 국내에서 TPS(Toyota Production System)에 대해 기업이나 제조업 관련 사람들에게 많은 관심을 불러 일으키고 있다. TPS는 일본형 생산시스템의 대표적 모델이며, 21세기 후반 생산기술 분야에 많은 기여를 하고 있으며 그 성과 역시 높은 평가를 세계 여러 기업으로부터 받고 있다. 본 연구에서는 TPS의 기본 개념과 특성 그리고 적용 절차 등 TPS의 현재 모습을 통해 기존의 TPS가 안고 있는 문제점과 한계를 조명하고자 한다. 이를 통해 현재의 TPS를 앞으로도 지속적으로 적용하고 경쟁력 있는 시스템으로 발전시키기 위한 방안으로 NEW JIT 기법을 활용하고자 한다. NEW JIT는 고객제일의 품질관리를 목표로 판매, 개발 그리고 생산의 각 부분의 업무프로세스를 혁신하는 것이다. 하드웨어 시스템으로는 TMS, TDS, TPS로 구성되며, 소프트웨어 시스템은 과학적 SQC(TQM-S)를 이용한 TQM의 전개로 이루어진다. 따라서 앞으로 차세대 제조관리기술을 위해 NEW JIT 기법을 보다 더 우리의 기업환경에 적합하도록 활용할 수 있는지를 검토하고 연구 발전시켜야 한다.

• 산업경영시스템학회지
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• 제16권28호
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• pp.49-58
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• 1993

We have been recognize the adaptation of JIT(Just-in-Time) production system is necessary to improve the constitution of enterprises. But this system is not settled in our industrial environment owing to misunderstanding of JIT concepts and lack of participation all members of the oranization. This paper deals with systematic application of the JIT subsystems such as U-form layout, flexible workforces with multi- functional skilled workers and adjustment of standard operations procedures. And a successful productivity improvement case study of a small and medium sized industry was dealt.

• 경영과학
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• 제13권2호
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• pp.13-24
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• 1996

CIM and JIT have been known as a suitable production system under various product with small quantity production environment which demands short delivery, high quality, and flexibility. CIM is the integrated system for both automated facilities and computer information processing technology and JIT is the system for an exhaustive waste elimination. This paper proposes the JIT-CIM system which combines the concepts and characteristics of JIT and CIM. The JIT-CIM system has been implemented under the strategy of management such as market-in, integration, recycling and resonable profit and which integrates the automation facilities and information processing technology on the basis of waste elimination concept and small lot pronciple of JIT.

• 산업경영시스템학회지
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• 제23권58호
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• pp.89-100
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• 2000

There use many production management systems for increasing productivity, minimizing inventory, keeping due dates and maximizing use of resources. MRP, GT and JIT are popular among these systems. There use many production management systems for increasing productivity, minimizing inventory, keeping due dates and maximizing use of resources. MRP, GT and JIT are popular among these systems. In this study, we had designed mixed production system which integrated searching and grouping function of GT, purchasing function of JIT and based on MRP and developed related algorithms and applied systems. The developed system was based on appling renewed algorithms for existing MRP system. To test efficiency operated real-data but we have tested renewed algorithms using sample-data because of massive real-data.

• 대한한방소아과학회지
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• 제21권2호
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• pp.97-107
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• 2007

Objectives This experiment is about Jojoongikgi-tang(JIT) exerts anti-inflammatory effects in BV2 microglial cells, and the effect of JIT on Nitric oxide(NO) production in lipopolysaccharide(LPS)-stimulated BV2 microglial cells were also demonstrated. Methods To investigate the anti-inflammatory effects of JIT, NO production, expression level of iNOS mRNA, PGE2 synthesis, expression COX-2 mRNA, cell viability, $TNF-{\alpha}$ mRNA expression were examined. Results The expression level of inducible nitric oxide synthase(iNOS) was decreased by JIT, and the production of Prostaglandin E2(PGE2) and the expression of Cox-2 mRNA also were inhibited by JIT. Proinflammatory mediators, such as $TNF-{\alpha}$, $IL-1{\beta}$, IL-12, were inhibited by JIT in a dose-dependent manner. Conclusions JIT have anti-inflammatory effects in BV2 microglial cells and could be used in inflammatory disease.

• 산업경영시스템학회지
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• 제23권55호
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• pp.43-50
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• 2000

Recently, the companies can't avoid the change toward the jobbing production from mass production because manufacturing types are changed from manufacturing-oriented to customer-oriented for the security of competitive power among the related companies. The jobbing production system usually has such problems as low productivity, high unit cost, much stocks, long manufacturing time and one-sided decision of delivery date compared with the mass production. In order to settle these problems in the jobbing production system, we introduced the JIT production system including 3 regulations & 6S activities and Kanban system etc. The effective operation of JIT production system makes the processes efficiently and reduces the unneeded stocks and maximizes the revenue of company.

• 한국건축시공학회지
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• 제5권4호
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• pp.153-164
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• 2005

This study aims at establishing JIT production management system to enable manage the resources input into from procurement through construction based on correct identification of the process, an analysis on the amount of input materials and information sharing. This study has focused on the process control and working process of rebar work in domestic apartment house construction where the overall scope of Process from the planning phase to the construction phase has been analyzed in this study. Also construction phase was selected for the application of a sample case. A basic model for JIT production was generated with these processes. Furthermore A questionnaire and the on-site survey with process, checklist and control data were prepared and performed for the application of JIT production management model into rebar work. The governing scopes of JIT production management system include process management, material management, yard loading and moving management and inventory control, and the operation of each control item

• 산업경영시스템학회지
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• 제17권31호
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• pp.43-48
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• 1994

In an effort to become more competitive and cost efficient many companies have shifted from traditional job-shop production to production using group technology (GT) and cell manufacturing (CM). Cellular manufacturing is critical to implementing Just-in-Time (JIT) production which pointed out in the previous articles. and adopt the U-shaped cell which allows for entry at one end of the U and exist at the other. This paper looks at the availability of cellular manufacturing, by applying those concepts to the small and medium sized industry.