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- 발행기관 : 서울시립대학교 산업기술연구소 (검색결과 443 건)
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이수곤 ( Su Gon Lee ),이문규 ( Moon Kyu Lee ) 서울시립대학교 산업기술연구소 2006 산업기술연구소논문집 Vol.14 No.-
This paper examined the ground characteristics of Seoul by using borehole information and by developing ground information database on the base of Geo-Seoul, and studied a method for applying the compiled database to GIS or for utilizing it as design constant. According to this study, the base rock head contour of Seoul is below 10~30 m from underground, the north area of Han River is mostly composed of granite and the depth is below 5 m~20 m from underground and the south area of Han river is mostly composed of gneiss and the depth is below 15~30 m from underground. The distribution of RQD was 5~90%, the north area of Han River is 35~90%, and the south area of Han River 5~65%. It was means that the rock mass of the south was severely fractured and in an ground water level, the north area of Han River was revealed to be 2~8 m from the ground surface and the south area to Han River to be 4~12 m.
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2축 기준펄스 수치제어 시스템을 위한 원호보간에 관한 연구
金奎植 서울시립대학교 산업기술연구소 1993 산업기술연구소논문집 Vol.1 No.-
In this paper, a method for the implementation of a circular interpolator is proposed to be used for a two-axes reference-pulse Computerized Numerical Control (CNC) system. An Algorithm is derived based on the half step discrimination method. The simulation results show that this circular interpolation algorithm is superior to those of existing interpolations - DDA, Danielsson's algorithm, and Four-pont algorithm in a sense of the performance criteria such as Peak error and RMS error.
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