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광고방송(라디오, 텔레비젼)에 의한 상품선전노래가 국민학교 학생에게 미치는 영향 : 진주시를 중심으로 mainly about Jinju city
김성복 진주교육대학교 1978 論文集 Vol.16 No.1
The aim of this research is to determine the influence of radio and T.V. Commercial Jingles on primary school students. It is based on a questionaire composed of 19 items divided into 5 categories: "Media" "Singing style" "Concern" "Relevance" to Daily Life" and "Comparison with "School music" With the cooperation of the Gyon-nam Educational Committee, the questionaire was filled out by 3141 6th grade primary school students in Jinju on Dec, 10th 1977. The results of this Survey are presented in this paper along with an analysis of social and educational effects of commercial jingles.
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삼각형에서의 부호를 갖는 질량 중심 좌표에 대한 체계적 분석과 사각형 스무스 컬러 세이딩에의 활용
김성복 조선대학교 공학기술연구원 2022 공학기술논문지 Vol.15 No.2
This paper presents a systematic analysis of the signed barycentric coordinate concerning a triangle and its application to the smooth color shading of a square containing a triangle. The primary purpose of this paper is to establish a unified theory of the barycentric coordinate, which is valid regardless of whether a given point is inside, outside, or on the boundary of the referenced triangle. First, the barycentric coordinate in a triangle is geometrically defined as the ratio of the signed areas of three sub-triangles. Second, the algebraic computation of three components of the barycentric coordinate is described, which facilitates the efficient calculation of the signed values of the three components. Third, based on the sign combination of the barycentric coordinate, 2-dimensional space is wholly divided into a total of 19 regions, and the decision table is provided to determine the region where a given point belongs. Fourth, as an application of the signed barycentric coordinate, the smooth shading of a square with an equilateral triangle inside is performed, along with the generation of repetitive color patterns with the left-right and top-bottom symmetry.
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