• 제목/요약/키워드: Making problems

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컨테이너터미널 운영을 위한 의사결정문제의 소개 (Decision-making Problems for the Operation of Container Terminals)

  • 김갑환
    • 대한산업공학회지
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    • 제33권3호
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    • pp.290-302
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    • 2007
  • This paper introduces several decision-making problems that need to be solved in order to facilitate the efficient operation of container terminals. These decision-making problems include the berth planning problem, the quay crane scheduling problem, the unload/load sequencing problem, the yard allocation problem, and the short-term scheduling of transporters and yard cranes. These problems can be classified into strategic decision problems, tactical decision problems, and real time operational decision problems. This paper proposes definitions of the problems that can be used to develop mathematical models for the problems.

지역 환경 문제 해결을 위한 시뮬레이션 게임 (A Study on the Simulation Game Design for the Problem Solving of Regional Environment Problems)

  • 유혜연;이동엽;최석진
    • 한국환경교육학회지:환경교육
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    • 제15권1호
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    • pp.125-136
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    • 2002
  • The ultimate goal of environmental education is to train the civilian who positively participates in solving environmental problems. To do above, not only accurate knowledge but also right value about environmental problems are needed. It is reasonable decision making that choose the first of all alternatives to solve the problems by accurate knowledge and right value of an individual. Teaching reasonable decision making in environmental education is related to raise the participant civilian toward regional environmental problem solving Simulation game helps that students have a opportunity to practice decision making skills about regional problems and give self-confidence to their decision making ability. So, the aim of this study is to present simulation games which is fit to elementary environmental education. The first one is for group decision making, the second one is for individual decision making. These can make a conclusion, winner and loser of games. But last one is open-ended game and aims to make explicit a variety of opinions, issues and conflicts to problem.

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수학 영재 학생들의 문제 만들기에 대한 연구 (Examining the Problem Making by Mathematically Gifted Students)

  • 나귀수
    • 대한수학교육학회지:학교수학
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    • 제19권1호
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    • pp.77-93
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    • 2017
  • 본 연구의 목적은 19명의 중학교 2학년 수학 영재 학생들의 문제 만들기의 특징을 조사하는 것이다. 본 연구에서는 먼저, 선행 연구에서 제안된 분석 틀을 중심으로 영재 학생들의 문제 만들기에서 나타난 확장성과 정교성을 살펴보았다. 다음으로, 영재 학생들이 문제 만들기에서 변경한 조건들을 상세하게 분석하여 영재 학생들의 문제 만들기를 '수평적 문제 만들기'와 '수직적 문제 만들기' 및 하위 범주로 분류하였다. 본 연구의 결과, 중학교 영재 학생들의 수학 문제 만들기는 확장성과 정교성의 측면에서 충분하지 않은 것으로 나타났다. 또한, 영재 학생들은 새로운 문제를 만들 때 원래 문제보다 복잡성이 감소하는 방향으로 문제를 만들며, 원래 문재에 제시된 조건들을 개별적으로는 고려하지만 종합적으로는 고려하지 않는 것으로 나타났다.

간호학생이 경험한 간호윤리 문제와 윤리적 의사결정 모형의 적용 (Korean Nursing Students윤 Experience of Ethical Problems and Use of Ethical Decision-Making Models)

  • 한성숙;박현애;안성희;;오효숙;김경운
    • 대한간호학회지
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    • 제31권5호
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    • pp.846-857
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    • 2001
  • This study was conducted to study on 1) What is nursing students' experience of ethical problems involving nursing practice\ulcorner 2) What is nursing students' experience of using ethical decision-making models\ulcorner Method: In order to answer these two questions, we selected 97 senior baccalaureate nursing students from two Korean universities using a conceptual framework and method of content analysis. Result: From 97 ethical problems emerged five content categories, the largest being ethical problems involving health professionals (69%); the basic nature of the nursing students' experience of ethical problems consisted of conflict, resolution, and rationale; 94% of the students stated that using an ethical decision- making model was helpful. Conclusion: Although additional research is needed, these findings have important implications for nursing ethics education and practice.

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대학수학에서 바람직한 선다형문제 만들기 (Making Good Multiple Choice Problems at College Mathematics Classes)

  • 김병무
    • 한국수학교육학회지시리즈E:수학교육논문집
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    • 제22권4호
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    • pp.489-503
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    • 2008
  • 대학수학에서 배우는 여러 가지 수학적 개념을 이해하는데 좋은 문제를 통해 도움을 주고 평가에서 공정성을 확보하기 위해 문제풀이에서 개념을 이용하는 능력과 개념에 대한 이해를 조사하는 문제의 예를 미분적분학 문제로 세 가지 유형을 다루었다. 잘못 만들어진 단답형문제와 선다형문제의 예를 제시하고 또 증명문제의 경우를 포함하여 선다형문제를 잘 만드는 방법에 대해 알아보고 최선의 문제가 되도록 노력을 하고 개념의 이해를 도와주며 최선의 문제가 될 수 있도록 더 많은 연구가 이루어지고 학생들에 대한 조사를 시도하여 그 결과를 분석하고 더 정선된 문제를 얻도록 노력을 한다.

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과학교과에서 협동적 형성평가 문제 만들기 및 해결을 통한 학습 정리 활동이 초등학생의 학업성취도 및 과학적 태도에 미치는 영향 (The Effects of Applying Cooperative Making Problems and Solving Problems for Formative Assessment at Finish Stage of Class on Elementary Students' Science Academic Achievement and Scientific Attitude)

  • 김소정;이규호
    • 한국초등과학교육학회지:초등과학교육
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    • 제37권4호
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    • pp.339-351
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    • 2018
  • The purpose of this study is to examine the effect of cooperative making problems and solving problems for formative assessment at finish stage on science academic achievement and scientific attitude. This study is conducted in 51 sixth-graders of two classes. The experimental group was provided with a teaching-learning course based on cooperative making problem and solving problem at finish stage. And the control group was provided with general classes based on the contents in teacher's guidebooks. The experiment was performed with the second and third units of the sixth grade, for about two month and obtained the following results: First, students prefer to make supply-type items than multiple choices. And by the Bloom's revised taxonomy of educational objectives, students prefer to make the problem types of 'Factual Knowledge' and 'Conceptual Knowledge'. Also students prefer to make the problem types of 'Understanding' and 'Applying'. Second, cooperative problem making and solving problems at finish stage has same effect on academic achievement in comparison to teacher-driven activity. Third, the experimental group made statistically significant difference in self-efficiency, contrary to the general science classes. Especially, it turned out that a meaningful effect was discovered to a cooperativity, openness. Finally, it turned out that many students thought cooperative making problem and solving problem at finish stage gave the help approving their cooperativity and openness at the investigation of awareness.

A Group Decision Model for Selecting Facility Layout Alternatives

  • Lin, Shui-Shun;Chiou, Wen-Chih;Lee, Ron-Hua;Perng, Chyung;Tsai, Jen-Teng
    • Industrial Engineering and Management Systems
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    • 제4권1호
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    • pp.82-93
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    • 2005
  • Facility layout problems (FLP) are usually treated as design problems. Lack of systematic and objective tools to compare design alternatives results in decision-making to be dominated by the experiences or preferences of designers or managers. To increase objectivity and effectiveness of decision-making in facility layout selections, a decision support model is necessary. We proposed a decision model, which regards the FLP as a multi-attribute decision making (MADM) problem. We identify sets of attributes crucial to layout selections, quantitative indices for attributes, and methods of ranking alternatives. For a requested facility layout design, many alternatives could be developed. The enormous alternatives, various attributes, and comparison of assigned qualitative values to each attribute, form a complicated decision problem. To treat facility layout selection problems as a MADM problem, we used the linear assignment method to rank before selecting those high ranks as candidates. We modelled the application of the Nemawashi process to simulate the group decision-making procedure and help efficiently achieve agreement. The electronics manufacturing service (EMS) industry has frequent and costly facility layout modifications. Our models are helpful to them. We use an electronics manufacturing service company to illustrate the decision-making process of our models.

보건간호사의 의사결정 유형과 지식 유형에 관한 실증연구 (Public Health Nurses유 Decision Making Models and Their Knowledge Structure)

  • 최희정
    • 대한간호학회지
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    • 제31권2호
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    • pp.328-339
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    • 2001
  • The purpose of this study was to describe decision making model of 180 public health nurses in Korea and their knowledge structure for decision making. The differences of decision making models by nurse's knowledge structure were also tested. Research concepts were measured using the instrument based on systemic and interpretive decision making approaches that were developed by Lauri & Salantera (1995). The results were as follows. 1. The public health nurses turned to, most commonly, a mixed practical-theoretical knowledge structure (45.9%), followed by practical knowledge (32%) and theoretical knowledge (22.1%). 2. The six different decision making models were identified. These were named for decision making theories and nursing process. These were client-oriented decision making, rule-oriented systemic decision making, wholistic and intuitive decision making, decision making depending on subjective view and experience, systemic decision making for defining problems. 3. The public nurses who had practical and practical-theoretical knowledge structure and community health practitioner (CHP) retold that decision making depends on subjective view and experience. Also the public health nurses who had 5~19 years clinical experience represented hypothetico-deductive decision making for defining problems.

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다단계 생산로트크기 결정문제의 분석과 단순화 방법 (A Methodology for Analysis and Simplification of Multi-level Dynamic Production Lot Sizing Problems)

  • 김갑환;박순오
    • 한국경영과학회지
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    • 제24권4호
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    • pp.13-26
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    • 1999
  • When we try to design a production planning system for a manufacturing company, it is a time consuming task to analyze various planning activities and identify inter-relationship among a lot of decisions made for the production planning. Most of the research efforts have been concentrated to well-organized independent decision-making problems that may usually be identified only after analyzing the characteristics of the decision-making process as a whole. In this paper, a methodology is suggested to characterize the whole process of the production planning for a manufacturing company and reduce the complexity of decision-making problems. The methodology is based on an experience of developing a production planning software for an automobile component manufacturer in korea. First, it is explained how to identify and represent the dependency among various decision-making variables. And a methodology is proposed to analyze the identified dependency among decision variables and identify decision-making process. Lastly, a practical example is provided to illustrate the analysis procedure in this paper.

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Decision-Making Problems for Shop Floor Simulation in Discrete Part Manufacturing

  • Jang, Pyoung-Yol
    • 한국경영과학회:학술대회논문집
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    • 한국경영과학회/대한산업공학회 2005년도 춘계공동학술대회 발표논문
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    • pp.1114-1116
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    • 2005
  • Shop floor control systems (SFCS) are used to make real-time planning and scheduling decisions to optimize the efficiency of manufacturing shops. These shops exhibit a non-linear, dynamic evolution caused by 1) the concurrent flows of disparate parts following complex routings, 2) a variety of machines that breakdown at random times, 3) stochastic arrivals of new parts with different priorities, and 4) jobs that have probabilistic processing times and transportation times. Because of their ability to capture that evolution faithfully, simulation models are often used in the aforementioned decisions. In this paper, various types of decision-making problems encountered in a shop floor have been investigated and categorized into process related problems and resource related problems for shop floor simulation.

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