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웨이브렛 변환과 사면체 분할을 이용한 볼륨 데이저 모델링
권오봉(Gwon Ou Bong),이 건(Lee Kun) 한국정보처리학회 1999 정보처리학회논문지 Vol.6 No.4
Volume data modeling is concerned with finding a mathematical function which represents the relationship implied by the 3D data. Modeling a volume data geometrically can visualize a volume data using surface graphic without voxelization. It has many merits in that it is fast and requires little memory. We proposes, a method based on wavelet transformation and tetrahedrization. We implemented a prototype system based on the proposed method. Last, we evaluated the proposed method comparing it with marching cube algorithm. The evaluation results show that though the proposed method uses only 13% of the volume data, the images generated is as good as the images generated by the marching cubes algorithm.
Pseudomonas sp.에 의한 p-Nitrophenol의 분해
이상준,이종근,손홍주,박근태,이 건 부산대학교 환경문제연구소 1993 環境硏究報 Vol.11 No.-
p-Nitrophenol degrading microorganisms were isolated from industrial effluent and soil by enrichment culture technique. The isolated strain which had the highest biodegradability was designated as EL-11P. The isolated strain EL-11P was identified as Pseudomonas from the results of bacteriological identification tests. The optimal medium condition for the growth and biodegradation of p-nitrophenol was p-nitrophenol 300 ppm and initial ph 8.0. Addition of Triton X-100 increased the growth rate of Pseudomonas sp. EL-11p, but biodegradability was equal to optimal medium. Pseudomonas sp. EL-11P was inhibited growth and biodegradation on various nitrophenol compounds. Pseudomonas sp. EL-11P had the relatively high stability on p-nitrophenol biodegradation.