• 대한안전경영과학회지
• /
• 제19권2호
• /
• pp.69-80
• /
• 2017

This study is analyse method for Industrial disester prevention of E-9 foreign workers. To do this, We adapted tp TRIZ 's creative problem solving theory and AHP, QFD. TRIZ is determined some parameters for problem solving and selected the inventive principles for each parameters. So, We made new parameters and inventive principles under theory of the TRIZ process for reduced to the foreign worker's disaster rate. After, The derived parameters and the inventive principles are used to evaluate the importance of factors through the AHP, and determine the weight of the relation through QFD expansion. Finally. this paper applies statistical data according to the determined model process, analyzes the result and proposes improvement method for the prevention of disaster of foreign workers.

• 실천공학교육논문지
• /
• 제9권2호
• /
• pp.91-98
• /
• 2017

To produce highly creative students, engineering education must develop both problem recognition skills and the ability to solve problems independently. Chonnam National University has been developing a creativity program in which students identify and solve problems themselves. Initially, the primary focus was on solving problems, but this was unsuccessful at attracting the students' interest. To overcome this, we adopted Csikszentmihalyi's flow theory in our creativity program, much like the way this theory is used in computer games. As a result of adopting flow theory, we achieved our goal. Thus, in this paper, we will introduce Chonnam National University's creativity program (designed based on flow theory), which we will call the Self-Directed Creativity-Upgrade Program. Furthermore, we will discuss the impact of this program based on statistical analyses.

• 한국수학교육학회지시리즈D:수학교육연구
• /
• 제16권4호
• /
• pp.265-276
• /
• 2012

These days, with the emphasis on statistical literacy, the importance of communication is the focus of attention. Communication about statistics is important since it is a way of describing the understanding of concepts and the interpretation of data. However, students usually have trouble with expressing what they understand, especially through writing. In this paper, we examined preservice teachers' difficulties when they wrote about statistical concepts. By comparing preservice teachers' written responses and interview transcripts of the variance concept task, we could find the missing information in their written language compared to their verbal language. From the results, we found that preservice teachers had difficulty in connecting terms contextually and conceptually, presenting various factors of the concepts that they considered, and presenting the problem solving strategies that they used.

• 한국산학기술학회논문지
• /
• 제18권9호
• /
• pp.395-402
• /
• 2017

본 연구는 탈북청소년이 자신을 어떻게 바라보고 대처해야 하는가를 알아보기 위해서 탈북청소년의 적응유연성을 살펴보고, 이러한 적응유연성이 탈북청소년들의 자아존중감과 사회적 문제해결능력에 어떠한 영향을 미치는지를 살펴보고자 한다. 본 연구는 현재 남한에 거주하고 있는 탈북청소년(10세-25세) 223명을 대상으로 설문조사를 실시하였으며, 자료분석은 SPSS 23.0과 AMOS 23.0 통계 프로그램을 활용하여 구조방정식 모형을 통해 분석하였다. 분석결과, 탈북청소년의 적응 유연성은 자아존중감과 사회적 문제해결능력에 모두 정적인 영향을 미치는 것으로 나타났다. 특히 적응유연성은 자아존중감과 높은 상관이 있는 것으로 나타났으며, 자아존중감은 사회적 문제해결능력과 높은 상관이 있는 것을 알 수 있다. 또한, 탈북청소년의 적응유연성과 사회적 문제해결능력 간의 관계에서 자아존중감은 매개효과가 있음을 검증하였다. 본 연구에서 북한이탈 청소년들의 자아존중감이 특히 매우 중요한 역할을 하는 것으로 밝혀졌다. 따라서 북한이탈 청소년들의 자아존중감을 강화시킬 수 있는 청소년 지도사 및 상담사 등의 전문가를 활용하여 전문적인 보호 및 지원을 제공해야 할 것이다.

• 정보교육학회논문지
• /
• 제21권4호
• /
• pp.463-474
• /
• 2017

현대는 소프트웨어 융합의 시대이다. 4차 산업혁명이라고 불리우는 이러한 변화가 우리 삶의 거의 모든 분야에 영향을 미침에 따라 초 중등 교육의 내용도 이러한 변화를 수용해야 한다는 요구를 반영하여 2015 개정 교육과정에서 소프트웨어 교육이 강화되었다. 본 연구는 초등 소프트웨어 교육을 위하여 플립러닝을 위한 STEAM 기반 초등 알고리즘 학습용 모바일 웹 앱을 활용한 교육이 초등학생의 문제해결과정에 미치는 영향을 분석하여 그 효과성을 검증하는 데 목적이 있다. 이를 위해 본 연구에서는 새로운 소프트웨어 교육을 위하여 초등학생의 플립러닝에 기여할 수 있도록 모바일 기기를 교육에 응용하여 IT 융합시대에 적합한 STEAM 기반 모바일 콘텐츠를 개발하였다. 그리고 개발한 모바일 자료를 초등학교 5학년 대상으로 모바일 기기를 활용하여 플립러닝 수업을 진행한 실험집단에 적용하였고, 활동지를 활용하여 강의식 수업을 진행한 통제집단과 문제해결과정을 비교할 수 있는 통계적 t-검증을 실시하였다. 그 결과 실험집단과 통제집단 간의 문제해결과정에 통계적으로 유의미한 차이가 있음이 검증되었다. 따라서 본 연구결과를 토대로 STEAM 기반 모바일 학습자료 활용 교육이 초등학생의 문제해결력 향상에 효과적임을 확인하였다.

• 대한기계학회:학술대회논문집
• /
• 대한기계학회 2000년도 춘계학술대회논문집B
• /
• pp.144-147
• /
• 2000

A numerical method for the solution of one-dimensional inverse heat conduction problem is established and its performance is demonstrated with computational results. The present work introduces the maximum entropy method in order to build a robust formulation of the inverse problem. The maximum entropy method finds the solution that maximizes the entropy functional under given temperature measurement. The philosophy of the method is to seek the most likely inverse solution. The maximum entropy method converts the inverse problem to a non-linear constrained optimization problem of which constraint is the statistical consistency between the measured temperature and the estimated temperature. The successive quadratic programming facilitates the maximum entropy estimation. The gradient required fur the optimization procedure is provided by solving the adjoint problem. The characteristic feature of the maximum entropy method is discussed with the illustrated results. The presented results show considerable resolution enhancement and bias reduction in comparison with the conventional methods.

• 한국콘텐츠학회논문지
• /
• 제20권6호
• /
• pp.326-341
• /
• 2020

본 연구는 국내 온라인 커뮤니티 이용 공중(public)이 한국과 일본의 관계 악화에 따른 민간주도의 불매운동 이슈에 대하여 그 중요성을 인식하고 관련된 커뮤니케이션 행위에 관여하는 과정을 문제해결 상황이론(Situational Theory of Problem Solving, STOPS)의 적용을 통해 분석하였다. 이를 위해 지난 2019년 7월 일본의 경제보복 성격의 수출규제 조치로 인해 촉발된 일본산 제품 불매운동을 사회적 쟁점으로 선정하여, 온라인 커뮤니티에서 활동하는 공중 524명을 대상으로 설문조사를 실시했다. 연구결과, 불매운동 이슈에 대한 공중의 높은 문제인식과 준거지침은 문제해결을 위한 상황적 동기에 정(+)적 영향을 주는 것으로 나타났다. 제약인식과 관여도는 정(+)적 영향을 주었으나 통계적으로 유의하지 않았다. 매개변인인 상황적 동기는 정보선별, 정보수용, 정보전달, 정보공유, 정보추구, 정보주목으로 구성된 문제해결 커뮤니케이션 행위에 모두 정(+)적 영향을 주고 있는 것으로 나타났다. 즉, 사회적 쟁점인 불매운동에 대해 중요성을 느끼고 있으며, 이에 대한 배경지식과 의지를 지닌 온라인 공중은 보다 적극적으로 문제해결을 위한 다양한 커뮤니케이션 행위에 참여함을 확인하였다. 또한 연구결과의 이론적 함의와 더불어 향후 연구의 방향성에 대해 기술하였으며, 특히 실무적으로는 정부의 공공PR 전략이 이러한 온라인 공중의 능동성과 파급력을 감안하여, 정교하게 구분된 공중의 특성에 맞는 섬세하고 효과적인 커뮤니케이션 전략을 수립-실행해야 함을 논하였다.

• Communications for Statistical Applications and Methods
• /
• 제23권1호
• /
• pp.71-83
• /
• 2016

In this paper we discuss a deconvolution density estimator obtained using the support vector machines (SVM) and Tikhonov's regularization method solving ill-posed problems in reproducing kernel Hilbert space (RKHS). A remarkable property of SVM is that the SVM leads to sparse solutions, but the support vector deconvolution density estimator does not preserve sparsity as well as we expected. Thus, in section 3, we propose another support vector deconvolution estimator (method II) which leads to a very sparse solution. The performance of the deconvolution density estimators based on the support vector method is compared with the classical kernel deconvolution density estimator for important cases of Gaussian and Laplacian measurement error by means of a simulation study. In the case of Gaussian error, the proposed support vector deconvolution estimator shows the same performance as the classical kernel deconvolution density estimator.

• 한국가정과교육학회지
• /
• 제12권2호
• /
• pp.29-45
• /
• 2000

The purpose of this study is (1) to develop the teaching plan based on Practical Problems solving on the area of food habits in home economics class and (2) to investigate the participation of teaching, the attitude of teaching method and food life. The subject of this study was two classes consisted off 66 students(male 26. female 40, 33 for each class) who are the first grade of middle school. The comparison group was taught by lecturing. while the experiment group by cooperative learning. The period of this experiment was three weeks: from June 7th to Jun 23th. 1999. The experiment was conducted through 5 classes. First of all students identify the problem of food habits and seek and evaluate information. Students evaluate actions and reflect on decision and evaluate action. The statistical method for the study was a paired T-test. The results of this study are as follows: 1. After experiment, the participation of teaching(p<.05) and the attitude of teaching method(p<.01) in the experiment group showed a statistically significant difference. Therefore the students in the class based on the practical problems solving took an active part in teaching 2. The practical problems solving is more effective than the lecturing in doing guide the positive attitude of teaching. 3. Through the experiment the attitude of food life in the experiment group showed a statistically significant difference(p<.05) Therefore the practical problems solving is more effective than the lecturing in changing positive attitude of food life.

• 지역사회간호학회지
• /
• 제10권1호
• /
• pp.252-261
• /
• 1999

The purpose of this study was to investigate the daily stress and stress coping behavior of elementary school children. The subjects for this study were 372 children fourth, fifth and sixth graders from an elementary school in Pusan. We adopted Won - Joo Chung's research instrument (1997) for measuring stress and coping behavior in this study. Statistical techniques such as frequency, percentage, mean, standard deviation, order, and Pearson correlation were used to examine the research questions of this study. The results of this study were as follows: 1. The most common instance of stress to be experienced by all children was the stress from school life, followed by social pressures, individual pressures and family environment. 2. A positive revaluation was the most commonly used stress-coping behavior, followed by behavioral mood conversion, spiritual support, problem-facing behavior, an information search for problem-solving, physical separation for emotional relaxation, avoidance, emotional aggressiveness and emotional expression. 3. Stress-coping behavior had a positive and significant correlation with the stress score(r = .4391, p= .000). In conclusion, the stress from school life was the most common experienced by all children. While independent effort in problem-solving was unsufficient, stress coping behavior had positive results. Therefore, this study verified the necessity of minimizing the stress children experience from school life and of helping them attain desirable stress-coping behaviors.