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토론 중심의 독서교육이 인문계 고등학생의 인성과 사회성 발달에 미치는 영향에 관한 연구
김규원,조미아,Kim, Gyuwon,Cho, Mi-Ah 한국비블리아학회 2014 한국비블리아학회지 Vol.25 No.2
본 연구는 고등학생을 대상으로 전방향 독서법을 적용한 독서토론 프로그램을 실시한 후 학생들의 인성 및 사회성 변화에 어떠한 영향을 미치는지 파악하고자 수행되었다. 이를 위하여 충주에 위치한 고등학교 1학년과 2학년 학생을 대상으로 독서토론 프로그램을 실시하고 사전검사와 사후검사를 실시하였다. 연구결과, 토론 중심의 독서교육은 인문계 고등학생의 인성과 사회성 발달에 효과적인 것으로 나타났다. This study aims to present the effects of discussion-centered reading education on high school students' personality & sociality using omnidirectional reading-discussion programs. To this end, we adopt an experimental research design with pre/post-test on personality and sociality using the program with the first and second grades high school students located in Chungju City as participants. The results show that the discussion-centered reading education has significant effects on the personality and sociality of high-school students.
평판 디텍터 기반 마이크로 CT시스템을 위한 Ring Artifact 보정 방법
김규원,이수열,조민형,Kim, Gyu-Won,Lee, Soo-Yeol,Cho, Min-Hyoung 대한의용생체공학회 2009 의공학회지 Vol.30 No.6
The most troublesome artifacts in micro computed tomography (micro-CT) are ring artifacts. The ring artifacts are caused by non-uniform sensitivity and defective pixels of the x-ray detector. These ring artifacts seriously degrade the quality of CT images. In flat-panel detector based micro-CT systems, the ring artifacts are hardly removed by conventional correction methods of digital radiography, because very small difference of detector pixel signals may make severe ring artifacts. This paper presents a novel method to remove ring artifacts in flat-panel detector based micro-CT systems. First, the bad lines of a sinogram which are caused by defective pixels of the detector are identified, and then, they are corrected using a cubic spline interpolation technique. Finally, a ring artifacts free image is reconstructed from the corrected projections. We applied the method to various kinds of objects and found that the image qualities were much improved.
측후방 충돌 안전 시스템을 위한 횡방향 충돌 위험 평가 지수 개발
김규원,김범준,김동욱,이경수,Kim, Kyuwon,Kim, Beomjun,Kim, Dongwook,Yi, Kyongsu 한국자동차안전학회 2013 자동차안전학회지 Vol.5 No.1
This paper presents a lateral collision risk index between an ego vehicle and a rear-side vehicle. The lateral collision risk is designed to represent a lateral collision risk and provide the appropriate threshold value of activation of the lateral collision management system such as the Blind Spot Detection(BSD). The lateral collision risk index is designed using the Time to Line Crossing(TLC) and the longitudinal collision index at the predicted TLC. TLC and the longitudinal collision index are calculated with the signals from the exterior sensor such as the radar equipped on the rear-side of a vehicle and a vision sensor which detects the distance and time to the lane departure. For the robust situation assessment, the perception of driving environment determining whether the road is straighten or curved should be determined. The relative motion estimation method has been proposed with the road information via the integrated estimator using the environment sensors and vehicle sensor. A lateral collision risk index was composed with the estimated relative motion considering the relative yaw angle. The performance of the proposed lateral collision risk index is investigated via computer simulations conducted using the vehicle dynamics software CARSIM and Matlab/Simulink.