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고차적 질문 생성 전략이 초등 과학 수업에 미치는 효과
배진호,김정아 韓國生物敎育學會 2008 생물교육 Vol.36 No.4
This research was conducted to find out what influences high-level questions-generated strategies have on the students' science learning characteristics by applying them to the 6th grade's science class units, "Comfortable Environment" and "Combustion and Extinction." This research could obtain the next three results. First, the high-level questions-generated strategies impressed academic achievement and adoption of the attitudes toward science lessons. Even though scientific inquiry skill and scientific attitudes do not show significant difference, their average points were higher after the instruction. Especially, 'Date Analysis', 'Hypothesis Foundation', 'Variables Control' and 'Generalization' factors under the scientific inquiry skill section and 'Life Esteem', 'Application', 'Criticism' and 'Openness' factors of the scientific attitudes section make difference. Second, 1,856 questions requested by the treatment group during 16 lessons demonstrate that they have positive contributions to facilitating critic and reasonable thinking. Besides, the ratio of high-level questions rather than low-level went up as the class was taken. Third, changes of academic achievement, scientific inquiry skill, scientific attitudes and the attitudes toward science lessons were significant in proportion to question level.
금형소재용 동합금의 미세조직 및 기계적 성질에 미치는 첨가원소의 영향
배진호,박종성,김명호 ( Jin Ho Bae,Chong Sung Park,Myung Ho Kim ) 한국주조공학회 1998 한국주조공학회지 Vol.18 No.3
N/A Effects of Si and Ni addition on the microstructure and mechanical properties of the Cu-12wt.%Al-5wt.%Fe-1wt.%Mn alloy have been investigated experimentally. Microstructure of the as-cast specimen is found to be refined markedly by additions of Ni and Si. By the addition of Ni, volume fraction of the k phase is increased, but volume fraction of the y phase is decreased. Hardness is increased with the addition of Ni, due to increasing of k phase which is harder than y phase. However, Charpy impact value is not significally decreased possibly due to the formation of isolate k phase. (Received February 19, 1998)
브이 다이어그램을 적용한 과학(생명 영역) 수업이 초등학생의 과학적 태도, 학업 성취도 및 탐구 능력에 미치는 영향
배진호,윤봉희 韓國生物敎育學會 2008 생물교육 Vol.36 No.3
The purpose of this study was to examine the effect of the Vee Diagram, one of self-motivated learning instruments for elementary students, on their scientific attitudes, academic achievements, and scientific process skills. Results of the study were as follows: First, science lectures utilizing the Vee Diagram had significant effects on scientific attitudes. Especially, scientific attitudes including curiosities, voluntariness, activeness, and judging reservation, were meaningfully improved. Second, science lectures utilizing the Vee Diagram had significant effects on science academic achievements. Third, science lectures utilizing the Vee Diagram had significant effects on scientific process skills. In the area of basic process skills, observation and classification showed a significant results, while In the area of comprehensive process skills, data interpretation showed a significant results.
Tracking Algorithm Based on Moving Slide Window for Manuevering Target
배진호,이종현,전형구,Bae, Jinho,Lee, Chong Hyun,Jeon, Hyoung-Goo The Institute of Electronics and Information Engin 2016 전자공학회논문지 Vol.53 No.4
본 논문에서는 이동 창 함수 추적기라는 새로운 추적 알고리즘을 제안한다. 본 논문에서는 이동표적의 궤적을 효율적으로 추정하기 위해 과거 궤적의 정보를 포함하는 이동 구간이 선형이라는 가정을 한 선형 창 함수를 적용하여 구현한다. 제안된 알고리즘의 창 함수의 파라메터는 측정 잡음의 영향을 줄이기 위해 그리고 알파-베터 추적기와 비교하여 더 적은 계산량 증가로 빠른 이동 표적 추적을 구현하기 위해 적절하게 선택할 수 있다. 본 논문에서 제안한 창 함수 추적기를 검증하기 위해 잡음상황에서 선형과 비선형 궤적에 대한 컴퓨터 모의실험을 수행했다. 또한 제안된 창 함수 추적기는 초기값에 대한 둔감한 특성과 예측할 수 없는 시변 측정 환경에서 창 함수 추적기를 사용할 경우 더 높은 자유도를 가짐을 보였다. In this paper, we propose a novel tracking algorithm called slide window tracker (SWT) suitable for maneuvering target. To efficiently estimate trajectory of moving target, we adopt a sliding piecewise linear window which includes past trace information. By adjusting the window parameters, the proposed algorithm is to reduce measurement noise and to track fast maneuvering target with little computational increment as compared to ${\alpha}-{\beta}$ tracker. Throughout the computer simulations, we verify outstanding tracking performance of the SWT algorithm in noisy linear and nonlinear trajectories. Also, we show that the SWT algorithm is not sensitive to initial model parameter selection, which gives large degree of freedom in applying the SWT algorithm to unknown time-varying measurement environments.