• 제목/요약/키워드: science objectives

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Bi-Criteria Process Routing Based on COMSOAL Approach

  • Lee Sung-Youl
    • Management Science and Financial Engineering
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    • 제11권2호
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    • pp.45-60
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    • 2005
  • This paper investigates the application of the computer method COMSOAL (Computer Method of Sequencing Operations for Assembly Lines) to the process routing (PR) problem with multiple objectives. In any computer aided process planning (CAPP) system, one of the most critical activities for manufacturing a part could be to generate the sequence that optimizes production time, production cost, machine utilization or with multiple these criteria. The COMSOAL has been adopted to find the optimum sequence of operations that optimizes two major conflicting criteria : production cost and production quality. The COMSOAL is here slightly modified to simultaneously generate and evaluate a set of possible solutions (called as population) instead of processing a solution stepwise in each iteration. The significant features of the COMSOAL include : no parameters settings needed, and a guarantee of feasible solutions. Experimental results show that COMSOAL is a simple but powerful method to quickly generate multiple feasible solutions which are as good as the ones obtained from several other well-known process routing algorithms.

전자상거래, 균형성과표, 조직간 정보교류와 공급망 성과 간의 관계 연구 (The Relationships among E-commerce, BSC, Inter-organizational Information Flow and Supply-Chain Performance)

  • 최종민
    • 경영과학
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    • 제30권1호
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    • pp.149-165
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    • 2013
  • This study empirically investigated the changes of performance evaluation systems under the environment of supply-chain e-commerce. The objectives of e-commerce include obtaining financial profit, internal innovation through processes integration, learning with information flow, and customer satisfaction through quick response. These objectives are generally consistent with the four evaluation measures of balanced scorecard(BSC). This study, first, demonstrated that perceived environmental uncertainty(PEU) has a significant effect on the adoptions of e-commerce and BSC, and severe competition positively influences the use of e-commerce. With cluster analysis and subgroup analysis, we also showed that under the high adoption levels of e-commerce, the high utilization of BSC can improve the supply-chain performance of a firm. In addition, it was found that the use of e-commerce indirectly and significantly affects supply-chain performance through inter-organizational information flow, and the supply-chain performance of a firm leads to the improvement of organizational performance.

전차 포신의 정밀 위치 제어를 위한 스위치드 리럭턴스 모터의 토크 제어 (Torque Control of a Switched Reluctance Motor for the Precision Position Control of a Tank Gun)

  • 최창환;김용대;이대옥;박기환
    • 한국군사과학기술학회지
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    • 제3권2호
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    • pp.42-52
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    • 2000
  • A torque control method of a switched reluctance motor for the position control of a tank gun is presented. One of the widely used torque control scheme, torque sharing function method, is investigated and a new torque sharing function method is proposed that extends the definition region of the conventional TSF to both the positive and negative torque production regions. By using this definition, all kinds of the control inputs that consider switching on/off angle control as well as the current profiling can be described. A parametrized representation of the current profiles is proposed by using a series of B-spline functions, which reduces memory requirement and enables additional controllers. Optimal determination of the TSFs are also investigated for various control objectives. Moreover, the comparison study of each objective is presented. Since this method generalizes all of the possible control input, the current and torque profiles obtained from the optimization are the most suitable control input that satisfy the objectives.

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The Efficacy of a Promotional Strategy of Shopping Malls

  • Hsu, Chiao-Yin;Kim, Sook-Hyun;Ordonez, Margaret
    • International Journal of Costume and Fashion
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    • 제8권2호
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    • pp.65-81
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    • 2008
  • This study examined the efficacy of shopping malls�v isual experience and convenience (i.e., exterior and interior changes) and general promotions (i.e., price and non-price promotions) by investigating their level of accomplishing promotion objectives that include consumers�a wareness, interest, trial endorsement, willingness to purchase, and visits/spending. Results showed that in general, shopping malls�p romotions did not effectively accomplish any of the five promotion objectives. However, some promotion activities are more effective in achieving a specific objective than other promotion activities. Shopping malls should take advantages of the functions of different types of promotions to form a comprehensive promotion strategy.

RN-BSN 학생을 위한 문제중심학습(Problem-Based Learning) 패키지 개발 - 임신, 분만, 산욕여성의 상황을 중심으로 - (Development of a Problem-based Learning Package for RN-BSN Students - Based on the Cases of Women during Pregnancy, Childbirth and Postpartum -)

  • 송영아;신혜숙
    • 여성건강간호학회지
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    • 제11권2호
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    • pp.99-109
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    • 2005
  • Purpose: The purpose of this study is to present a procedure for developing a PBL package and to provide the example of its application. Method: In this study, the PBL package was proposed based on the integrated curricular under maternity nursing. The PBL package model proposed by Little was applied to this study. Result: The procedure for developing the PBL package includes course objectives, learning objectives, concept mapping, situation scenario, tutor guide, and evaluation method. Clinical scenarios used in 3 PBL packages were composed of a pregnant women, a childbirth women, and a postpartum women. The Eight detailed steps are given in this study. Conclusion: Through these findings, the steps might be easier and more useful for nurse professionals to begin using the PBL package in maternity nursing. In addition, the steps will actively contribute to imply the PBL in nursing education.

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The Evaluation Tool and Process for Effective Education Outcomes Measurement and Analysis of Computer Education

  • Kim, Young-Tak;Sim, Gab-Sig
    • 한국컴퓨터정보학회논문지
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    • 제21권9호
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    • pp.149-156
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    • 2016
  • This paper is concerned with education courses operating practices for basic computer literacy training. In this study, we propose an example for students to effectively measure and evaluate the achievement of defined ability in the performance measurement and analysis, learning objectives and learning outcomes set in operation throughout the course. Through research and development use case presents the tools for teaching method and effective and objective measurement of the related subjects. And based on the results, we propose the possibility of utilizing NCS-based course operation and education certification. In this study, the measurement process is based on the association with the objective of the development and operation, and measurement tools, measuring tools for measuring learning outcomes associated with the curriculum design methods for the measurement and evaluation of the case of the operation of the course units of learning outcomes and the method proposed.

기본간호학 학습목표 및 문제집 문항분석에 관한 연구 (An Analysis of Learning Objectives and Test Items in Fundamentals of Nursing in Korea)

  • 김경희;강규숙;김금순;김원옥;변영순;손영희;양선희;조현숙;송경애
    • 기본간호학회지
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    • 제9권1호
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    • pp.7-15
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    • 2002
  • Purpose: To analyze the learning objectives and test items for Fundamentals in Nursing which were established between 1999 and 2000 and to develop these items toward a nationwide faculty workshop for national board examination for Korean nurses Results: 1. According to Bloom's taxonomy, learning objectives established in 1999 mainly consisted of two domains, comprehension (56 1%) and knowledge (27.7%). The learning objectives established in 2000, mainly consisted of comprehension (45.2%) and application (25.4%). 2. According to McGuire's taxonomy, domain of test items established in 1999 consisted of recall (66.7%). interpretation (28.0%) and problem solving (4.9%). Domain of test items established in 2000, consisted of recall (65.1%), interpretation (22.0%) and problem solving (12.9%). 3. The proportion of learning objectives in the knowledge and comprehension domains established in 200, decreased from 27.7% to 13.5%, and from 56.1% to 45.2% respectively over that of 1999. But the domain of application Increased from 5.3% to 25.4% over that of 1999. 4. With regard to McGuire's taxonomy, the proportion for the recall and interpretation domains established in 2000 decreased from 66 7% to 65.1%, and from 28.0% to 22.0% respectively. But the proportion for the problem solving domain increased from 4.9% to 12.9% over that of 1999. For type of test items, the proportion of A type established in 2000 decreased from 47.2% to 37 6%, and K type increased from 52.1% to 60.8% over that of 1999. Conclusion: The learning objectives and test items established in 2000 showed remarkable improvement compared to those established in 1999. For better learning objectives and test items in Fundamentals of Nursing, further research is recommended on essential content and standardization of job analysis for national board examination for nurses in Korea.

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강화학습을 활용한 기만행위 모의방법 연구 : 해병대 상륙양동 사례를 중심으로 (A Study on Reinforcement Learning Method for the Deception Behavior : Focusing on Marine Corps Amphibious Demonstrations)

  • 박대국;조남석
    • 한국군사과학기술학회지
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    • 제25권4호
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    • pp.390-400
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    • 2022
  • Military deception is an action executed to deliberately mislead enemy's decision by deceiving friendly forces intention. In the lessons learned from war history, deception appears to be a critical factor in the battlefield for successful operations. As training using war-game simulation is growing more important, it is become necessary to implement military deception in war-game model. However, there is no logics or rules proven to be effective for CGF(Computer Generated Forces) to conduct deception behavior automatically. In this study, we investigate methodologies for CGF to learn and conduct military deception using Reinforcement Learning. The key idea of the research is to define a new criterion called a "deception index" which defines how agent learn the action of deception considering both their own combat objectives and deception objectives. We choose Korea Marine Corps Amphibious Demonstrations to show applicability of our methods. The study has an unique contribution as the first research that describes method of implementing deception behavior.

과학 역량 모델의 제안과 과학 교육과정에의 적용 (Suggesting a Model of Science Competency and Applying it to Science Curriculum)

  • 박종원;윤혜경;권성기
    • 한국과학교육학회지
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    • 제39권2호
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    • pp.207-220
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    • 2019
  • 2015개정 교육과정에서 새롭게 과학과의 핵심역량이 제시되었으나 역량 개념에 명확하지 않아 일선 학교에서는 많은 혼란과 어려움이 발생하고 있다. 이에 본 연구에서는 과학 역량을 구성하는 주요 요소들은 무엇이고 역량의 구성 요소들이 전체적으로 어떤 연관성을 가지고 있는지 종합적으로 이해하기 위해 역량에 대한 정의와 역량의 구성 요소에 대한 문헌 분석을 실시하였다. 분석 결과에 기초하여 6개 요소(인지 외적 특성, 지식, 기능, 상황, 수행, 수준)로 이루어진 과학 역량 모델(A Model of Science Competency: MSC)를 제안하였고 이러한 과학 역량 모델을 활용하여 과학 교육과정의 성취 기준을 역량 중심의 학습 목표로 기술하는 방법을 탐색하였다. 마지막으로 본 연구에서 제안된 과학 역량 모델의 장단점과 후속 연구에 대해 논의하였다.

KITSAT-1 COSMIC RAY EXPERIMENT-INITIAL RESULTS

  • Min, K.W.;Kim, S.H.;Shin, Y.H.;Choi, Y.W.
    • Journal of Astronomy and Space Sciences
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    • 제10권2호
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    • pp.103-112
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    • 1993
  • The KITSAT-1 was successfully launched on August 11, 1992, into a near circular, 1300-km-high orbit with an $66^{\circ}$inclination. The satellite carries a solid state detector module to measure the high energy particle flux originating mostly from the inner radiation belt. We describe here the objectives of the experiment, the detector structure, and the preliminary result.

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