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All Casing 공법을 위한 Casing Rotator의 설계 방법
이홍석(H. S. Lee),차영택(Y. T. Cha),장홍석(H. S. Jang),이연호(Y. H. Lee),김정구(J. G. Kim),신대영(D. Y. Shin),최성준(S. J. Choi),이상식(S. S Lee) 유공압건설기계학회 2015 유공압건설기계학회 학술대회논문집 Vol.2015 No.6
All casing method among various foundation of earthworks is generally applied to build the large pile with diameter 1,000 ~ 3,000mm which is used at a bridge, large building, steel truss rail way bridge, and so on. As the method of construction, two methods are generally applied to build a pile. One is to use a casing rotator, and the other is to use a casing oscillator. In this paper, the design method of the casing rotator for all casing method is presented. First, Structural stability is evaluated by the structural static analysis and dynamic analysis, and then major design parameters are selected, and finally, optimal design values was decided from DOE(Design Of Experiments) method.
야간차량 주행 환경 장애물 검출을 위한 적응형 영상 개선 알고리즘
이홍석(H. S. Lee),공영걸(Y. G. Kong),이문도(M. D. Yi) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
In this paper we discuss an image enhancement technique for night vision device. Many applications of image processing have been researched on many areas. However, applying this process to object detection on night environment has not yet been fully explored. The presented algorithms use the fact that the relationship between stimulus and visual perception is logarithmic and afford a marriage between enhancement qualities and object detection efficiency. This helps improve the performance of object detection. Experimental results are presented to illustrate the performance of the proposed algorithm.