물리 선택에 따른 고등학생의 물리에 대한 태도 분석

최광규,박상태,이희복,정기주,김준태,석효준,장낙한 공주대학교 과학교육연구소 2015 과학교육연구 Vol.45 No.1

This research was carried out by dividing into two parts. The student has an attitude about the physical survey to determine what it reasonable to develop and the other, through a diagnostic test that analyzes the student's knowledge and attitude toward the relationship between the state will seek. Depending on the choice of physics can see a difference in attitude, which was the result of the student's knowledge structure based on physical selection was found to show a difference. Students' knowledge about the physical differences of the attitudes that form the body can be a reason that could be confirmed. Based on this knowledge, students need a prescription depending on the state it was found that the proper prescription is fulfilled for physics students would be able to change attitudes is considered. Students to form attitudes toward physical reasons there will be. During the course of one body of knowledge can affect the structure has confirmed the fact that learning in the field to take advantage of it if you choose to expand the student body seems to be.

경계요소법에 의한 지반과 구조물의 동적 상호작용 해석

崔光圭 동아대학교 공과대학 부설 한국자원개발연구소 1987 硏究報告 Vol.11 No.2

This paper describes a new technique to solve dynamic soil-structure interaction problems using the boundary element method. By applying Kelvin's fundamental solution which is frequency independent, the boundary integrals need to be computed only once as they are frequency indepedent. The approach effectively permits the mass integrals which originally were obtained by integrating over the domain, to be reduced to boundary integrals. Besides, non-homogeneous boundary elements are formulated for the analysis of layered soil media.

地盤과 曲線 箱子形 暗渠의 相互作用 解析

崔光圭 동아대학교 공과대학 부설 한국자원개발연구소 1986 硏究報告 Vol.10 No.1

The curved member has been used in the various fields of civil stucture in proportion to the development of industry, especially in the curved bridge and in the curved box-culvert, The stress and displacement distribution of curved box girder on the elastic foundation under the arbitrary load was analyzed numerically by the finite strip method. In this paper, Winkler's model was used for the elastic foundation and applied to the strip element. The girder was assumed to be simply supported along the radial edges. Because modal displacement was adopted as basic parameter, convergency was fastly achieved in displacement analysis. But in stress analysis, 20 terms of cor responding Fourier series were reguired. In this paper, the results solved by computer program developed by above theories were compared with SAP-Ⅳ (A Structural Analysis Program) Program using the finite element method and they nearly coincided with them. The finite strip method is a very powerful and versatile tool of solution in structural analysis but restricted by the geometry and boundary condition of the structure.

비균질 퇴적층을 갖는 부지에서의 지진응답해석 : SH파의 경우 In case of SH wave

최광규 東亞大學校 海洋資源硏究所 1995 硏究論文集 Vol.8 No.1

This paper deals with the seismic response of the out-of-plane motion resulting from inclined SH wave. The amplification of waves in a semi-infinite soil which have nonhomo-geneous alluvial deposits is investigated. The numerical method used is the combinationof Finite Element Method and Boundary Element Method. The results obtained are compared with that of the free field response of the half space and that of the exact solution and proved to be satisfacory. Consequently, theanalysis of seismic response in the site having nonhomogeneous alluvial deposits of irregular geological configurationis possible by the numerical procedure in this paper.

有限帶板法을 利用한 彈性地盤上의 箱子桁 解析

崔光圭 동아대학교 공과대학 부설 한국자원개발연구소 1985 硏究報告 Vol.9 No.2

The stress and displacement distribution of box girder on the elastic foundation under the arbitrary load was analyzed numerically by the finite strip method. Especially Winkler's model is used for the elastic foundation and applied to the strip element. Because nodal displacements were adopted as basic parameters, convergency was fastly achieved in displacements but in stress analysis more than 10 terms of corresponding Fourier Series were required. The results solved by computer program developed by above theories in this paper nearly coincided with reference 6 and 7 and are shown in Fig. 9∼Fig 15.

境界要素法을 利用한 Non-Homogeneous 2次元 彈性問題의 解析

崔光圭 동아대학교 공과대학 부설 한국자원개발연구소 1985 硏究報告 Vol.9 No.1

The numerical analysis of non-homogeneous two dimensional Elasticity problems by the boundary element method is discussed and compared with the results of finite element SAP Ⅳ package program. One of the interesting features of the boundary element method is the simplicity of the input data required to run a program. This contrasts with the large amount of data needed to run a finite element program. And the unknowns in the resulting simultaneous equations of the boundary element method are less than those of finite element method and so, computer memory and computing time can be saved in the boundary element method. In general, finite element results are usually accurate for the original variables under consideration (displacements in displacement approach) but when these variables are differentiated to obtain stresses the results are inclined to be less accurate, while, in boundary element method, both displacements and stresses are accurate. Boundary element matrices (G and H matrix) are usually fully populated which means that the method may be less efficient computationally than finite elements, in which stiffness matrix is banded type. And so the study to overcome this drawback ought to be made.

A Case Study of Traditional Korean Ink Painting Art Therapy in Reducing Stress Levels in Female University Students

최광규,기정희,박주령 사)한국아동발달지원연구소 2023 임상미술심리연구 Vol.13 No.3

This study is a case study that understand the process of stress reduction through traditional Korean ink painting art therapy for female university students with high stress levels. The research subject was a 20-year-old freshman enrolled in a four-year university in A city. She received ink painting art therapy for 60 minutes once a week for 17 sessions, excluding pre- and post-tests. The researcher analyzed the Korean ink painting art therapy process and work analysis for each session. To assess stress levels, the Goldberg Psycho-social Well-Being Scale and Person-in-the-Rain(PITR) were administered as pre- and post-tests. The results of this study are as follows. First, depression and anxiety were reduced through art therapy using Korean ink painting. Second, stress was reduced through picture analysis of PITR. Finally, this study is significant in that it provides basic data on ink painting art therapy using traditional Korean media.

地震波를 받는 基礎-地盤 相互作用계에서의 波消散 效課

金宗周,孫榮浩,崔鎭旭,崔光圭 東亞大學校 海洋資源硏究所 1992 硏究論文集 Vol.5 No.2

In this study , the dynamic analysis procedure of foundation -soil interaction system subjected to seisemic wave is presented . The foundation is placed on a linear elastic , isotropic and homogeneous half space representing the soil medium. The boundary element model of half space and the finit element model of foundtion are coupled together by enforcing compatibility condition of displacements and equilibrium condition of traction on the contact surface. The acuuracy of the proposed method si vertified throough the conparison studies with results reported method is that it provides directly the transient response unlike the frequency domain techniques.

비균질 퇴적층을 갖는 부지에서의 지진응답해석 : P파, SV파의 경우 In case of P, SV wave

손영호,최광규 東亞大學校 海洋資源硏究所 1995 硏究論文集 Vol.8 No.1

The seismic responses in the nonhomogeneous alluvial deposites subjected to P-wave and SV-wave are analyzed by coupling finite element method and boundary element method. By using the finite element method, the irregular geological configuration and the nonhomogeneous material property can be modeled and by using the boundary element method in modeling semi-infinite soil, the wave reflection from the artificial boundary can be removed. The radiation damping is taken into account automatically by using fundamental solution satisfying radiation condition which must be considered in infinite domain problem. Through a comparative study of the validaty of the plane strain model have examined.

天安-並川間 國道시멘트콘크리트鋪裝의 龜裂補修施工

崔光圭(최광규) 대한토목학회 1987 대한토목학회지 Vol.35 No.6