• 제목/요약/키워드: alternatives evaluation

검색결과 614건 처리시간 0.027초

미래무기체계의 성능평가모형 (Performance Evaluation Model for Future Weapon Systems)

  • 김의환;최규명;정창모;김종윤
    • 한국국방경영분석학회지
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    • 제23권2호
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    • pp.15-24
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    • 1997
  • In this paper we suggested a performance evaluation model for future weapon systems. Weapon Performance Index(WPI) model transform the characteristics of alternatives as indices. We can easily obtain WPIs of alternatives with the model. The highest WPI recommended as the best solution. The performance elements in hierachy for future weapon systems are determined by systems engineering procedure. Priorities in hierachy can be determined through survey of experts engineering procedure. Priorities in hierachy can be determined through survey of experts and statistical analysis. Utility function is formulated as a probability model and utility score is predicted on the basis of historical data about the same category of weapon systems in the world. WPI is calculate from sum of product of priorities and utility scores. The model can be applied to trade-off analysis, cost and effectiveness analysis, war game model.

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CO2 포집을 고려한 가스터빈 복합화력 발전 플랜트의 시스템 대안 평가를 위한 공학 설계 (Engineering design procedure for gas turbine combined cycle power plant with post-combustion CO2 capture)

  • 이수현;최상민
    • 한국연소학회:학술대회논문집
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    • 한국연소학회 2014년도 제49회 KOSCO SYMPOSIUM 초록집
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    • pp.333-335
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    • 2014
  • As the user demand for power plants becomes various, design objective becomes complicated. To review the system feasibility, system objective and evaluation criteria need to be newly defined. In this study, engineering design procedure of the multi-purpose power plant, such as barge-mounted combined cycle power plant with $CO_2$ capture, was shown as a previous work for the feasibility review of the system alternatives. For the system design, heat and mass balance for each system configuration was firstly performed. Using the thermal analysis results, conceptual design of system alternatives was carried out. And then, preliminary design of the major equipment was done. The engineering calculation results of this study would be used as the evaluation data for system feasibility review.

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PCSWMM 모형의 수량 및 수질 측면의 효과분석 결과를 이용한 대안의 우선순위 산정 (Prioritizing Alternatives by Quantifying the Effect on Water Quality and Quality Using PCSWMM)

  • 정은성;이길성;홍원표;박경신
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2008년도 학술발표회 논문집
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    • pp.754-758
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    • 2008
  • This study establishes management plan for water quantity and quality using PCSWMM and alternative evaluation index (AEI). PCSWMM can consider combined sewer overflows (CSOs) and simulate not only the flowrate but aslo the pollutant of BOD, SS, TN and TP for the effectiveness analysis of alternatives. Indicators of AEI are selected using sustainability evaluation concept, driver-pressure-state-impact-response (DPSIR) model and calculated by weighted summation method. These were applied for the Mokgancheon watershed which has many combined sewers. This result will be effective to the integrated watershed management for sustainability.

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인공지능 개념을 이용한 공장 설비배치 알고리즘 개발 (Development of Facility Layout Design Algorithm Based on Artificial Intelligence Concept)

  • 김환성;이상용
    • 품질경영학회지
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    • 제19권1호
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    • pp.151-162
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    • 1991
  • The purpose of this study is to propose a facility layout design algorithm based on artificial intelligence concept, and then to develop a computer program which is more practical than any other conventional facility layout design systems. The algorithm is composed of five step layout procedures; knowledge and data input, knowledge interpretation, priority determination, inference of layout design, and evaluation, In the step of priority determination, the algorithm is divided into single row and multi row layout problem. In the step of inference of layout design, alternatives are generated by constraints-directed reasoning and depth first search method based on artificial intelligence concept. Alternatives are evaluated by the moving cost and relationship value by interactive man-machine interface in the step of evaluation. As a case study, analytical considerations over conventional programs such as CRAFT and CORELAP was investigated and compared with algorithm propsed in this study. The proposed algorithm in this study will give useful practical tool for layout planner. The computer progran was written in C language for IBM PC-AT.

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건강가정지원센터의 교육사법에 대한 평가와 발전방안 (The Evaluation and Alternatives on the Educational Work in Healthy Family-Support Center)

  • 송혜림;정영금
    • 가족자원경영과 정책
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    • 제12권1호
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    • pp.1-20
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    • 2008
  • The purpose of this study is to provide the information for problem solving and development, and to suggest future directions for educational work of HFSC. For this purpose, the annual reports of 40 centers were analyzed and a staff survey was carried out. On the basis of these reports and the survey, the benefits of the educational programs were examined and alternatives for better educational work are suggested.

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환경쟁점분석 수업이 중학생의 의사 결정력에 미치는 효과 (The Effect of the Environmental Issue Analysis Instruction on the Decision Making Ability of Middle School Students)

  • 송선경;최돈형;백성혜;손연아
    • 한국환경교육학회지:환경교육
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    • 제20권1호
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    • pp.42-61
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    • 2007
  • This study investigated the effect of the environmental issue analysis instruction on the decision making ability of middle school students. A pretest-posttest control group design was employed. The participants for the research were 288 1st grade male students in middle school in Seoul, the environmental issue analysis lesson group consisted of 142 members and the non-environmental education group consisted of 146 members. The cognitive level of the students were divided into three groups-concrete, transition, formal-as the result of GALT test. Students take issue analysis lessons during 6 weeks, one lesson per a week. Students had studied through worksheets reconstructed and developed by researcher on basis of issue analysis suggested by Ramsey et al. (1997). The results of the research were followings: After lesson for environmental issue analysis, all of the students were improved in decision-making ability regardless of cognitive level (p<.05). Especially, decision-making ability of the transition group students was improved to a high degree. Scores of searching relevant information, generation of alternatives, identification of values for selection criteria, the evaluation of alternatives' merits and demerits, prediction of consequence were increased in experimental group (p<.05). But the ability of selection of alternatives according to value was not reached statistically meaningful improvement. The decision-making ability of the control group students was not improved but ability of selection of alternatives, the evaluation of consequence were increased (p<.05).

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생물 윤리 의사결정 활동이 고등학생들의 합리적인 의사결정능력에 미치는 영향 (The Effects of Decision-Making Activities about Bioethical Issues on Students' Rational Decision-Making Ability in High School Biology)

  • 박윤복;김영신;정완호
    • 한국과학교육학회지
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    • 제22권1호
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    • pp.54-63
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    • 2002
  • 본 연구에서는 과학의 윤리적 측면 중에서도 생물윤리와 관련하여 학생들의 의사결정력 함양에 적합한 주제를 선택하여 의사결정 단계를 세분화시켜 활동함으로써 학생들의 의사결정력 향상을 도모하고자 하였다. 생물 윤리 의사결정 활동지는 선행연구를 바탕으로 하여 재구성된 것으로서 문제인식, 정보 탐색, 대안 생성, 가치준거 설정, 대안 평가, 결과 검토의 단계로 구성되었다. 4차시에 걸쳐서 활동지를 투입한 결과 l차시에 비해 4차시의 학생들의 의사결정력은 향상된 것으로 나타났다. 의사결정의 활동 단계별로 살펴보면, 문제인식이나 대안 생성, 대안 평가하기는 4차시로 갈수록 향상되었으나, 정보탐색이나 가치 준거 결정하기, 결과 검토하기는 향상되지 않았다. 이는 단기간의 학습활동으로 의사결정의 세부 능력을 모두 향상시킬 수 없음을 알 수 있다. 또한 학생들의 의사결정 활동 단계에서 살펴보면, 정보탐색이나 대안 평가 기능의 수행이 낮은 것으로 나타났다. 이는 학생들이 생물 윤리적 쟁점에 직면하여 의사결정을 하는데 있어서 문제와 관련된 생물학적 지식을 제대로 적용하지 못하고 있는 것으로 볼 수 있다. 따라서 본 연구를 통해 현대의 과학 기술 사회에서 학생들에게 합리적인 의사결정력을 함양시키기 위해서는 교육과정에 생물학의 윤리적이고 도덕적인 요소를 고려한 구체척인 의사결정 활동이 포함되어야 하며 지속적인 학습이 이루어져야 함을 시사한다.

AHP를 이용한 의복평가기준의 우선순위 분석 (An Analysis on Priority of Clothing Evaluative Criteria using AHP)

  • 조윤주
    • 한국의류산업학회지
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    • 제9권1호
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    • pp.81-88
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    • 2007
  • This study aimed to develop priorities alternatives based on relative rather than absolute assignments on clothing evaluative criteria. The relative comparison approach includes much redundancy and is thus less sensitive to judgemental errors common to techniques using absolute assignments. By deriving evaluative criteria for consumers in choosing clothing, and considering their relative important or value in the priority of evaluation elements. When the consumer selects clothing, it requires multi-criteria decision making exercise and needs to make trade-offs between different alternatives. With an application of the AHP's hierarchical structuring and pair-wise comparisons, this study will determine the weight and priorities of evaluation factor in clothing evaluative criteria in choosing cloth, which will eventually lead to improve management. Items for the setting priority were decided as 'symbol', 'practicality', 'economy', 'vogue', and 'aesthetic' by council. The data for this research were collected from respondents of 108 females in Busan. Data were analyzed by frequency and AHP. As the results, 'economy' was decided as a most important item. And 'a fashionable color' evaluated as that of first priority in the totality evaluation elements.

A Grey MCDM Based on DEMATEL Model for Real Estate Evaluation and Selection Problems: A Numerical Example

  • NGUYEN, Phi-Hung;TSAI, Jung-Fa;NGUYEN, Thanh-Tam;NGUYEN, Thi-Giang;VU, Dang-Duong
    • The Journal of Asian Finance, Economics and Business
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    • 제7권11호
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    • pp.549-556
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    • 2020
  • Real estate markets play an essential role in the economic development of both developed and developing countries. Investment decisions in private real estate demand the consideration of several qualitative and quantitative criteria. Especially in Vietnam, demand for housing, apartments are rising which has resulted because of the migration from rural to urban areas. This study aims to determine the influencing factors of the real estate purchasing behavior and then recommend a grey Multi-Criteria Decision Making (MCDM) support model to evaluate real estate alternatives based on a numerical example in Vietnam. A set of essential criteria are identified based on experts' opinion, and the proposed determinants are initial investment, maintenance cost, prestige location, distance to interesting places, parking lot, public transportation, property condition, total area size, number of rooms, and neighbors. The subjective weights were obtained by using the Decision-Making Trial and Evaluation Laboratory (DEMATEL) model, and the Grey Relational Analysis (GRA) technique is employed to prioritize and rank real estate alternatives. The results reveal that this approach can be useful to make purchasing decisions for many kinds of real estate property under uncertain business environments. These findings indicate that the presented hybrid model has advantages in granting flexibility to the preferences of decision makers.