This thesis relates to developing an index drilling automation system that quickly and efficiently processes a hole in a product by a rotating robot arm and transfer devices. Static structural analysis was performed using the ANSYS Mechanical program to evaluate the structural stability of the system. According to the research, the equivalent stress value is low overall, and the minimum safety factor is 4.42, so it seems structurally safe. This system will significantly help improve productivity through unmanned work as it can control and set the drill and index simultaneously on the control panel in conjunction with the training.

This paper is about structural, and vibration analysis for the development of Index chucks Structural and vibration analyses were performed using the ANSYS Mechanical program to evaluate the Index chuck's structural stability and vibration characteristics. As a analysis result, when the maximum load of 500N was applied to the Index chuck, the safety factors were 2.06, 2.09, and 2.60, respectively, when the thickness was 5mm, and the outer diameters were 70mm, 90mm, and 120mm, respectively. Structurally safe results were obtained. In addition, under load conditions of 300 N or less, structural safety was confirmed if the thickness is 3mm or more.

Since transmitting various files around Internet is one of common activities in everyday life, the compression is important technical issue in these days. Shape models are also frequently transmitted and therefore its compression has also been studied. Considering the large portion of shape model can be normal vectors, a new scheme was recently presented to compress normal vectors using clustering and mixed indexing scheme. Presented in this paper is a mathematical investigation of the scheme to analyze the probability distribution of normal index distances in Normal Index array which is critical for the compression. The probability distribution is formulated so that the values can be easily calculated once the relative probabilities of C, R, E, S, and L op-codes in Edgebreaker are known. It can be shown that the distribution of index distances can be easily transformed into a few measures for the compression performance of the proposed algorithm.

텍스처 매핑(texture mapping)은 실감 있는 영상을 만들기 위해 3차원 그래픽스 칩에서 사용되는 기술이다. 이 방식 중 이중선형 필터링 모드(bilinear filtering mode)에서는 1개의 픽셀(pixel)을 처리하기 위해 4개의 텍셀(texture element: texel)에 접근이 요구된다. 본 논문에서는 텍스처의 접근패턴을 분석하여 동시에 4개의 텍셀을 접근할 수 있는 고성능 텍스처 캐시의 구조를 제시하였다. 3차원 게임인 퀘이크3(Quake 3)와 언리얼 토너먼트 2004(Unreal Tournament 2004)의 텍스처 접근 추출파일을 이용한 시뮬레이션 결과로 성능평가를 하였으며, 제시한 텍스처 캐시의 구조는 물리적인 크기가 8KBytes 이하인 경우 콜은 성능을 갖게 됨을 분석하였다.