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황민식(Min Sik Hwang) 한국멀티미디어학회 2016 멀티미디어학회논문지 Vol.19 No.8
As the visual effect frequently used in movies or animations, special effects are well suited for the creation of buildings or materials destruction and collapse scenes. With the relevant programs developing technologically, the adoption of a real-time physically based-system makes it possible to realistically express dynamic simulations. In the large scale, the visual expression of such effects of destroying is satisfying enough, but most common programs of those effects fail to maximize visual effect generated with the cutting of small materials. Besides, to perform a heavy simulation process needs high-performance hardware and programs, where high costs would become a serious issue. For this reason, this paper suggests a solution optimized for the effect of small materials-cutting. The progress of each step shows technologies which trace movement with the state of the completion of the characters motions and then cut the material in real-time, finally led to the very realistic visual effect. Besides, using vector inner calculation to follow the motions of object and to realize cutting effect, this study provides an experiment that constructs visual effect for visualization from the basis of mathematical algorithm and it would be certainly as an educational material used for further researches.
황민식 ( Min Sik Hwang ),김영돈 ( Young Don Kim ),신사영 ( Sa Young Shin ),전제혁 ( Jae Hyuck Jun ),홍종삼 ( Jong Sam Hong ),엄대운 ( Dae Woon Eom ),천갑진 ( Gab Jin Cheon ) 대한소화기학회 2016 대한소화기학회지 Vol.68 No.4
Endometriosis is a benign gynecologic disease, characterized by the presence and growth of functional endometrial-like tissue outside uterus. This ectopic endometrial tissue is most commonly found in the peritoneum, ovaries and uterosacral ligaments, but extremely rarely there is involvement of the appendix or cecum. Here we report a case of cecal endometriosis presenting as a subepithelial tumor diagnosed by surgical excision. (Korean J Gastroenterol 2016;68:214-217)