• 대한수학교육학회지:학교수학
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• 제5권3호
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• pp.361-384
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• 2003

본 연구는 연립일차방정식에 관한 문장제에서 IDEAL 문제 해결 모형을 바탕으로 "구조-표현"을 강조한 교수-학습을 실시하였을 때 학생들의 문제해결 과정을 탐구하였다. 연구 결과, 구조-표현을 강조한 학급의 학생들이 이를 강조하지 않은 학급의 학생들보다 문제해결 능력이 향상되었으며, 동치문제, 동형문제, 유사문제를 더 정확하게 구별하였다. 또한, 구조-표현을 강조한 학급의 학생들이 그렇지 않은 학급의 학생들보다 문맥에 대한 이해 및 불완전한 정보 추출에서의 오류, 미지수간의 내적 관계에 대한 수학적 기호표현으로의 불완전한 전이 오류, 적절하지 않은 방정식 생성 오류의 발생 빈도가 적었다. 그리고, IDEAL 문제 해결 모형의 문제의 확인 단계(I)와 문제의 정의 단계(D)에서 학생들이 문제 해결 계획을 수립하기 위해 문제를 읽고 이해하여 문제를 해결하는 과정을 중점적으로 분석한 결과, 직접 변환 모델과 구조 도식 모델이 나타났다.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2004년도 추계학술대회
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• pp.637-642
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• 2004

This paper presents a new shape design method for the multi-mode sensor that can detect selected multiple modes for the active vibration control of mechanical structures. The structure used for this study is an isotropic cantilever beam type with a PVDF(polyvinylidene fluoride) which is bonded onto the structure as a sensor. Characteristic behaviors of the sensor are related with the electrode shapes of PVDF. The shape optimization problem is solved by defining a new multi-objective function and using the genetic algorithm. Resulting electrode shape functions have good performances to detect the multiple vibration modes. The results of analytical simulations are compared with those of experiment works. The results agree well each other. Hence, the obtained experimental results give evidence for the validity of the presented theoretical analysis of the electrode shape design problem.

• 한국실천공학교육학회논문지
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• 제3권2호
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• pp.69-74
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• 2011

본 논문에서는 정보교육과정의 "문제해결방법과 절차" 영역에 필요한 알고리즘적 사고 문제 모델을 활용하고, 두리틀 프로그래밍 내용 요소를 적용하여 두리틀 프로그래밍 알고리즘적 사고 문제를 제안하였다. 그리고 개발된 두리틀 프로그래밍 알고리즘적 사고 문제들에 대해 실험수업을 실시하여 알고리즘적 사고에 따른 답안들의 다양성과 효율성 및 개발된 문제들의 난이도 적절성에 대한 분석을 통해 본 논문에서 제안된 문제들에 대한 두리틀 프로그래밍 알고리즘적 사고 문제로서의 적합성을 검증하였다.

• 대한전기학회논문지
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• 제40권3호
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• pp.299-307
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• 1991

This paper deals with the determination of a firing sequence of transitions in the reachability problem of Safe Petri Net. The determination problem of a firing sequence is very important from the point of practical view, especially in the control of the discrete systems modelled by Safe Petri Net. The determination method of a firing sequence of transitions by means of the matrix equation for the discrete systems modelled by Safe Petri Net is proposed. First, a construction method of the indicence matrix and the firing rule for Safe Petri Net with self-loop are presented by defining the permissive arc in place of self-loop. Next, we develop a method that can find the enable transitions of Safe Petri Net by means of the matrix equation of Safe Petri Net. Finally, by using this method, we propose an algorithm that determines the firing sequence of transitions of Safe Petri Net.

• Computers and Concrete
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• 제8권1호
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• pp.111-123
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• 2011

Severe element distortion problem is observed in finite element mesh while performing numerical simulations of high velocity steel projectiles penetration/perforation of concrete targets using finite element method (FEM). This problem of element distortion in Lagrangian formulation of FEM can be resolved by using element erosion methodology. Element erosion approach is applied in the finite element program by defining failure parameters as a condition for element elimination. In this study strain parameters for both compression and tension at failure are used as failure criteria. Since no direct method exists to determine these values, a calibration approach is used to establish suitable failure strain values while performing numerical simulations of ogive-nose steel projectile penetration/perforation into concrete target. A range of erosion parameters is suggested and adopted in concrete penetration/perforation tests to validate the suggested values. Good agreement between the numerical and field data is observed.

• Asia pacific journal of information systems
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• 제9권3호
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• pp.177-194
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• 1999

Identifying knowledge as the single most important asset ultimately defining organizational competitiveness, enterprises are trying to move towards knowledge-oriented practices. Such practices have given rise to learning and agile organization, This paper presents applied information technologies to realize the learning and agile organization, focusing on systems thinking. Firstly, in order to establish a framework for the systems thinking, an information systems development method based on process chain is proposed. Then, an agent-based microworld simulation approach is presented. The approaches provide visible and analytical information to knowledge workers so that they can have systems thinking capabilities eventually. Various microworlds on the top of the information system can be constructed with agents and simulated for possible business events. All decision makings are dynamic in nature. To let knowledge workers look ahead the possible outcomes of the whole relevant processes is the core capability of the approaches. Through watching, the knowledge workers would be able to acquire new insights or problem solving knowledge for the problem in hand.

• 가정과삶의질연구
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• 제20권4호
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• pp.113-126
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• 2002

This study focused on defining and applying the diagnose scales to the household life in context with the family life planning based on the systems approach. In this study the household life consisted in 4 life subareas, i.e. time use, nonhuman resources(housing and durable goods), household financial and communication/problem solving competence of family members. Data were collected from 1200 full-time housewives who live in Seoul, Kyungki, Chungbuk, Jeonnam and Jeonbuk, Kyungnam and Kyungbuk and have at least 1 child in school age. The results show that the 4 areas of household life are in the level under the diagnose scale totally. The results of this study contribute to the systematic family life planning and the Problem solving of general household life. And the scales that are investigated through this study can be used the self family life diagnose Program.

• 한국실내디자인학회논문집
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• 제29호
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• pp.145-152
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• 2001

Open education, which has been introduced spontaneous1y to many countries, has been giving some strong influence to the primary education in Korea and has been widely used in Korea itself. This report deals with the ineffectiveness of the learning space which has been divided into common classroom and particular classroom. The division of the learning space sets the problem of defining which is the particular of common subject, and the problem of a child to move around for different subject. For the architectural design of school, it is essential for learning space to be suitable for the characteristics of each subjects. The space needed for individual subjects requires tole learning space that is different to the space needed for basic academic subjects. The introduction of different corners in the classroom can be the solution. Individual corners can be divided into the necessary coner, the standard corner, the elective corner and the corner fur facilities.

• 지식경영연구
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• 제13권1호
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• pp.1-12
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• 2012

A knowledge map is a network-typed diagram visualizing all kinds of knowledge that influences each other to solve a problem. A knowledge map determines the structure of knowledge categorizing and archiving by defining the relationship of referential navigation among knowledge. Since tremendous and increasing number of knowledge needs to be included in a knowledge map, a knowledge map must be organized automatically by considering the contents and relationships of knowledge. This paper suggests the concept and prototype of a semi-automated knowledge map which automatically maps new piece of knowledge onto a manually provided draft map. The prototype knowledge map is based on the recursive programming to make a knowledge map automatically determine the location of the newly-entered knowledge by considering the referential relationship between knowledge. The proposed knowledge enables the knowledge network to expand autonomously by automatically including and storing knowledge. Also, it can improve the accuracy and applicability of knowledge for problem-solving, because the relationship of referential navigation among knowledge can be efficiently and effectively expressed.

• 한국융합학회논문지
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• 제9권4호
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• pp.179-188
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• 2018

본 연구의 목적은 컨설턴트선정요인, 컨설팅서비스만족도, 컨설팅서비스재구매의도 간의 관계에 있어서 컨설턴트의 문제해결능력의 조절효과를 분석하는 것이었다. 컨설팅수진기업에서 컨설팅프로젝트에 참여한 경험이 있는 담당자를 대상으로 설문조사를 실시하였으며 탐색적 요인분석과 구조방정식을 사용하여 연구모형과 가설을 검정하였다. 연구결과 컨설턴트의 문제해결능력의 유의한 조절효과와 연구모형의 적합성이 확인되었다. 본 연구에서 컨설턴트의 문제해결능력을 중요한 변인으로 정의 한 것은 컨설턴트의 역량에 관한 연구의 새로운 시도였다. 본 연구가 컨설턴트의 문제해결능력에 관한 다양한 연구를 촉진하고 컨설턴트 스스로에게는 문제해결능력에 대한 재인식을 갖게 하는 계기가 되기를 기대한다. 향후 본 연구의 가장 큰 한계점으로 인식한 컨설턴트의 문제해결능력 측정도구를 개발하고 그 도구를 사용하여 컨설턴트문제해결능력의 조절된 매개효과 검정을 위한 연구를 수행할 것이다.