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Client/Server 기반 멀티미디어 교수설계 프로그램에 관한 연구
오재철,김덕룡 한국정보전략학회 2001 한국정보전략학회지 Vol.4 No.2
To adjust ourselves to the information society, we are in need of a new educational paradigm. The information society is supposed to promote overall changes in the object, content and methods of education. To satisfy the demands in the information society, according to the learners' demands and needs, various kinds of learning materials, such as letters, sounds, pictures, animation, and abundant information infra should be offered. As instructors teach the students in classroom, lots of contents should be given to design the contents in various ways. Especially handy and standardized instructional producing tools to tie various kinds of contents together should be developed. We need the tools to develop the contents. Thus, the purpose of this paper is that, if teachers have their own knowledge of their major subjects in order to design multimedia teaching-plan easily, multimedia teaching-plan with a database driven management system should be projected and constructed, and the educable authoring tool (Multimedia Teaching Plan Program Based on Client/Server) should be embodied with both standardized intellectual presentation and an authoring tool for educational materials.
오재철,오재영 순천대학교 기초과학연구소 1996 基礎科學硏究誌 Vol.7 No.-
The necessity of education using computer CAI(Computer Assisted Instruction) with the information society enlarges generally, and education software which can make an individual work according to personal(or individual) ability using the variety of computer and other characteristics is limited to some special area(part) and its relative subjects are very limited. Therefore the purpose of this report is to test the feasibility of the CAI software for physical training. I recommend using three different CAI model for the physical training development. Instrument GREAT is one model within the CAI system which I recommend for Taekwondo training.
오재철,차기문,차한,박호진,이정상,Oh, Jae-Cheol,Cha, Ki-Moon,Tchah, Hann,Park, Ho-Jin,Lee, Jung-Sang 대한소아소화기영양학회 1998 Pediatric gastroenterology, hepatology & nutrition Vol.1 No.1
Congenital bronchoesophageal fistula associated esophageal atresia usually presents in the newborn period or infancy but those without esophageal atresia are more insidious in disease process. Symptoms which include cough, hemoptysis, choking on swallowing liquids, uncommonly dysphagia, and epigastric discomfort may not begin until adult life. Most of the cases are curative unless there are serious underlying conditions. The diagnosis is usually made by gastroesophagoscopy, esophagogram, bronchogram and bronchoscopy. And the most of the cases can be cured by fistulectomy and resection of involved pulmonary lobes. We experienced one case of congenital bronchoesophageal fistula which occurred in a 13- year-old girl who complained of paroxysmal cough and intermittent hematemesis for 3 years.
오재철 순천대학교 공업기술연구소 1998 工業技術硏究所論文集 Vol.12 No.-
Image compression based on the multiresolution approach has been intensively investigated over the last decade. The interesting point is that filter bank characteristic is drawn from the 2-scale relation in L^2(R) space and the orthogonality of the scale and wavelet functions. And if the filter banks are cascaded and both the low pass components are further decomposed, the wavelet packets are obtained. These packets (coefficients) represent the subimages at the different resolutions. At each level, the subimages are rearranged (sorted) according to they energy level. Now only the most important values are well modeled by the Laplacian distribution. Therefore the Laplacian quantization is applied to quantize the subimages. The experiments show that, while keeping the satisfactory level of the reconstructed image quality, the high compression ratio is obtained.