• 산업공학
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• 제17권4호
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• pp.414-425
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• 2004

This study presents the decision of priority for optimal design guide to improve disassembly process. Disassembly process is divided into recognition, transfer and disassembly of assembly point and recognition, transfer and remove of grasp point. Significant influential factors are derived from analyzing the above process. And those factors are used for making the check list to evaluate the properties of parts in each process. Furthermore, the weight with considering disassembly process is also used to determine weight of each process. On the base of the above sequence, qualitative score of disassemblability of each process that is enabled to compare different disassembly processes can be acquired. Ultimately the score helps to decide the priority of design guide for disassembly process.

• 한국조경학회지
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• 제24권1호
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• pp.42-54
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• 1996

Many of urban parks which have been designated for urban planning regulation are not well developed because the priority of investment is inferior to that of other public facilities. Park development is an urgent urban policy and it is hard to decide priority among parks. Therefore, it is necessary to evaluate the priority of park development. Thus the Analytic Hierarchy Process has been introduced because it is suitable for achieving objectivity by collecting the professional opinions. The goals of park development are evaluated by AHP method and the priorities among goals are conservation of natural environment, satisfying the residents' residents' needs, population density, regional pollution, land acquisition cost, ratio of greeneries and facilities within park areas. Priority of park development is decided by the standardization of each individual inventory data and considering of the professional opinions. Among the multi-attribute judgement methods, AHP method may be the most widely used. Despite the critical evaluations of the AHP, such as limitation of the nine-point scale and the rank reversal problem, application of AHP to decide the priority of park development is suitable for actual circumstances.

• 품질경영학회지
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• 제30권4호
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• pp.94-105
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• 2002

In this paper, replacement problems for a deteriorating system are considered. In the system under consideration, the successive lifetimes after repair become shorter and shorter, while the consecutive repair times become longer and longer. More specifically, the lifetimes of the system form a nonhomogeneous Poisson process, whereas the consecutive repair times constitute a stochastically increasing geometric process. Optimal replacement policies for the long-run average cost rate and the steady state availability are considered. Also taking the cost and the availability into consideration at the same time, the properties of optimal policies under the Cost Priority Policy and the Availability Priority Policy are obtained.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2006년도 춘계학술대회 논문집
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• pp.119-120
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• 2006

Prioritizing the design specifications among many alternatives is necessary at the stage of concept design. Design specifications have trade-offs between cost and performance, and the relationships among them, in the standpoint of various functional requirements, are complex. AHP(Analytic Hierarchy Process) method is one of the most popular ways of solving the priority setting problem. However, it is impossible to monitor the interim findings in the middle of the process, it is hard to predict the difference when changing pairwise comparison conditions, and the operation done by one person makes it hard to share the process simultaneously. This paper shows a new method of priority setting in this kind of decision making problem. This method is designed to support the realtime priority setting among many design specifications with regards to many functional requirements. A new algorithm and visualization methods are introduced, and the usability is verified in an exemplary concept design stage.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 추계학술대회
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• pp.15-17
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• 2022

볼 베어링 선택조립 시스템에서 잉여부품을 최소화하기 위해서는 각 부품의 치수 분포를 파악하여 선택 확률을 최적화하여야 하지만, 복잡한 시스템은 생산 공정에 지연이 일으킨다. 본 논문에서는 볼 베어링 선택조립 시스템에서 빠르고 간단하게 선택 우선순위를 결정할 수 있는 군집 우선 선택 알고리즘을 제안한다. 그리고 실제 볼 베어링 선택조립 공정에서 수집한 데이터로 모의 상황을 가정하고, 군집 우선 선택 알고리즘과 기존 알고리즘을 시뮬레이션하여 잉여부품 발생률과 연산소요시간을 평가한다. 시뮬레이션 결과, 군집 우선 선택 알고리즘이 기존 알고리즘에 비하여 83.8% 적은 잉여부품을 발생하였고, 연산소요시간도 39.7% 단축되었다.

• 한국통신학회논문지
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• 제10권5호
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• pp.218-228
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• 1985

통신망에 있어서의 입력 메시지는 그 메시지가 가지는 우선도에 의해서 처리된다. 이 우선도 처리에 있어서 서로 다른 종류의 우선도를 가지는 메시지가 폭주하면 낮은 우선도의 메시지는 높은 우선도의 메시지가 끊이지 않는 한 우선도차를 넘는 지연을 갖게 된다. 이 경우 낮은 우선도의 메시지에 대해서 연속지연을 보상하기 위한 평균지연보상방법을 제시하였다.

• 한국경영과학회지
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• 제27권1호
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• pp.1-17
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• 2002

The objective of this paper is to develop a new priority setting algorithm that considers the cross-impact of the future technology alternatives and that satisfies the final goal of the technology management through multi-hierarchy evaluation criteria. By combining the Analytic Hierarchy Process (AHP) model, which is a well-known priority setting model, and Cross Impact Analysis (CIA) model, which is a technological forecasting method that considers cross-impact among R&D Items, we developed an Integrated Cross-Impact Hierarchical (CIH) model, which sets the priority by considering technological forecasting and technology dependency simultaneously. A step-by-step numerical example of the model developed here is presented as backup of its practicality.

• 한국조경학회지
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• 제49권1호
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• pp.42-53
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• 2021

가로수는 도시환경개선과 환경회복기능, 그리고 차단된 도시녹지의 연결통로로 소생태계 서식처 제공의 역할 등 녹색 네트워크의 핵심 및 자연성 회복의 수단으로 중요성이 더욱 강조되고 있다. 그러나 가로수는 일반적으로 도시환경에 적응이 우수한 몇 가지 수종을 선별하여 대단위 식재를 해오고 있어 전 세계적으로 편중화에 대한 문제가 지적되었다. 본 연구는 가로수 선정을 위한 평가기준과 세부지표를 마련하고, 계층적 분석기법(AHP:analytic hierarchy process)을 통해 그 중요도를 도출하였다. 가로유형별 중요도를 보면 상업가로는 경관향상성이 0.2640, 세부지표는 수형이 0.1245로 가장 높았다. 업무가로도 경관향상성이 0.2496, 세부지표는 수형이 0.1177로 가장 높아 상업가로와 유사한 결과를 보였다. 주거가로는 시민편의성이 0.2250, 세부지표는 수형이 0.0936으로 가장 높았다. 일반생활가로는 유지관리성이 0.2479, 수형이 0.1062이었다. 역사경관가로는 지역특성이 0.3488, 세부지표는 상징성이 0.1586, 기념성이 0.1095로 높았다. 생태네트워크가로는 생태계균형성이 0.4266, 세부지표는 종다양성이 0.1643, 자생종이 0.1556으로 높았다. 자동차중심가로는 대기오염저감성이 0.4639, 세부지표는 배기가스 저감이 0.1928, 미세먼지 저감이 0.1765, 이산화탄소 저감이 0.0945로 높게 나타났다. 가로유형별 세부지표 중 수형의 중요도가 공통적으로 높았는데, 이는 가로의 위치 특성 상 가로 경관에 대한 중요성에 대해 높이 인식하고 있는 것으로 판단된다. 본 연구는 가로수 수종 선정 시 가로유형별 특성을 고려하여 평가기준과 세부지표를 설정하고 중요도의 정량적 기준 제시를 통하여 객관적 수종 선정 기준을 도출하였다.

• Journal of Biosystems Engineering
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• 제29권2호
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• pp.187-194
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• 2004

The study focused on setting priority among the future core technologies that were derived by Delphi in agricultural management ＆ information using analytic hierarchy process(AHP). Items for setting priority were decided as ‘technology’, ‘market’, and ‘public concerns’by council. The future core technologies were divided into four parts by importance and R＆D level. Technologies which consisted of upper two parts having higher importance were considered in the study. Questionnaires were given to 9 specialists in biosystems engineering. As the results, ‘market’ was decided as a most important item. The most important technologies were ‘Developing technology and system of post harvest processing for higher quality rice’ in group I, and ‘Developing sensor technology to evaluate quality and safety for agricultural products’ in group II.

• 산업경영시스템학회지
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• 제35권3호
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• pp.217-224
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• 2012

This study is to review strategic priority for Defense Quality Management Factors of the Defense Agency for Technology and Quality. It is necessary to decide which quality factors are more important and which quality factors are relatively less important. In this study, Analytic Hierarchy Process (AHP) method was used in assigning the factors' weights. The survey of fifty one members participated in Defense R&D Programs showed that the Consistency Ratio was under 0.1 in evaluation items and factors.