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國內飼育 犬에 있어서 心臟絲狀蟲의 感染率에 관한 調査 硏究
Ji Hee Seong(成知禧),Hwa Joong Yoon(尹和重),Won Chang Lee(李元暢),Kwang Ho Kim(金光浩),Seung Won Kang(姜承遠) 한국예방수의학회 1996 예방수의학회지 Vol.20 No.2
The purpose of this study was carried out an epidemiological survey on the prevalence rate of the canine heartworms in Seoul City and the districts of Pa-Ju, Seong-Nam and Po-Chon in Kyonggi province of Korea from September 1994 to the end of September 1995. The blood samples from 292 male and 193 female dogs (pet, 363 ; fighting dogs, 60 ; working dogs, 62) were examined for the adult heartworms cuticle antibodies using the enzyme-linked immunosorbent assay (ELSA) kits. The test was designed to detect the antibodies of the host against the specific cuticle antigens produced with the adult heartworms.
정원우,이윤종,기우항,김영호,양승영,강용희,안병호,임성규,윤일희,김중욱,윤성효,강동진 경북대학교 과학교육연구소 1997 科學敎育硏究誌 Vol.21 No.-
The purpose of this study is to investigate the status of the experimental and practical education in high school earth. The present status and reasonable management of the experimental and practical education in high school earth science have been grasped from the questionaires. To do this, eighty eight earth science teachers in Korea are administered questionaires. The frequency of the experimental and practical items in the seven kind of earth science text books were investigated. The problems and the reasonable management for experimental and practical education were proposed in this paper.
현행 중학교 과학 실험·실습교육에 대한 교사들의 견해와 개선방안
이윤종,기우항,김영호,정원우,양승영,강용희,안병호,임성규,윤일희,김중욱,강동진 경북대학교 과학교육연구소 1996 科學敎育硏究誌 Vol.20 No.-
The status of facilities, management of the experiment, practices, and Science education teaching method in middle school have been investigated. The present status and reasonable management of middle school science education have been grasped from the questionaires. The results are as follows : The reasonable management for expeiments and practices of science education were scanty in the middle school around the urban and rural schools owing to the shortage of facilities and equipments, crowded class, excessive classes, work for teachers, excessive contents of present textbook and insufficience of administrative support etc. The current teaching method of middle school science has emphasized knowledge. This fact does not satisfy the objective of learning due to lack of teaching method. Desirable directions for the improvement of present status of middle school science education were proposed in this paper.
강성준,황희용 강원대학교 정보통신연구소 2008 정보통신논문지 Vol.12 No.-
In this paper, we analyzed the dual mode ring resonator of the recently reported Balun-BPF by network Y-parameter analysis. Using the derived Y-parameter and slope parameters, we also verified that the balun conditions of the Balun-BPF at center frequency. This makes it easy to design the Balun-BPF with arbitrary characteristics.
원격영상강의에서 발생하는 상호작용의 빈도와 유형이 학습 동기유발에 미치는 영향
강명희,김서영 한국교육정보방송학회 1996 교육정보미디어연구 Vol.1 No.2
본 연구에서는 원격영상 강의를 시범적으로 실시하고 있는 '한국방송대학교'의 2개 강좌-사회과학 계열 1개 과목과 인문과학 계열 1개 과목-를 모국과 자국 모두 관찰함으로써 원격교육에서 상호작용이 어떠한 빈도와 형태로 나타나고 있으며 이는 학습자의 동기유발에 어떠한 영향을 미치는가를 조사하였다. Flanders의 상호작용 분석법을 활용하여 비디오로 촬영한 강좌 상황을 분석한 결과는 다음과 같다. (1) 사회과학 계열의 과목이 인문과학 계열 과목보다 교사 대 학습자 (T-S), 학습자 대 교사(S-T), 학습자 대 학습자(S-S) 상호작용이 많이 일어난 것으로 관찰되었다. (2) 모국과 자국의 비교에서는 모국이 자국에 비해 일반적으로 상호작용이 많이 일어나며, 그 유형은 교사 대 학습자(T-S) 상호작용이 주를 이루었다. (3) 상호작용이 많은 것이 학습자의 동기를 전반적으로는 유발하지 않았으나. T-S 유형은 학습자 의 주의력에 S-T 유형은 학습자의 자신감에 의미있는 영향을 주는 것으로 나타났다. The purpose of the study is to investigate the frequencies and patterns of teacher-student interaction and gain insight on the student motivation regarding interaction through two video conferencing courses being implemented at Korea Open University during the fall semester of 1995. The results revealed the lecture K provided much more interaction than lecture M. In lecture K, teacher-student interaction was prevalent. On the other hand, student-teacher interaction was more observed in lecture M. The on-site location showed more interaction than remote-site in both lecture. On-site location, teacher-student interaction was more frequently observed and student-teacher interaction was shown more in remote-site. Analysis of the relationship between interaction pattern and student motivation revealed that there was no correlation between interaction pattern and student motivation. All pattern of interaction could not be directly correlated to overall students motivations. However, it was elucidated that the Teacher-Student pattern enhanced attention of the students and the Student-Teacher pattern positively influenced confidence of the students.
자기베어링시스템 강성의 실험적 고찰을 통한 안정화 특성에 관한 연구
강성구,강종규,홍준희 한국공작기계학회 2004 한국공작기계학회 추계학술대회논문집 Vol.2004 No.-
Due to the lack of stiffness and difficulties of control, it is hard to achieve well balanced magnetic levitation. In this paper, we analysis the current and position stiffness change according to bias current through experiment. Then, compensation equations were presented. After obtaining PD gain for each bias current and PD gain region through levitation experiment, we consider the characteristics.
지구과학의 개념형성학습에 관하여 : 변화에 대한 개념을 중심으로 Especially Concerning to Concepts about Changing Phenomena
姜用熙,林成圭 경북대학교 과학교육연구소 1989 科學敎育硏究誌 Vol.13 No.-
By analyzing Earth Science textbooks currently used in high schools. we tried to establish a basic conceptual system concerning to changing phenomena based on the ESCP's structuralizing scheme. Investigating facts about time and change, we have found 21 basic concepts which should be understood through concept-forming teaching and learning. By classifying the basic concepts to fit the four principles suggested by NSTA as a scientific basic-system. we also tried to generalize the selected concepts. We made test problems in order to test high school students' understanding about earth science concepts especially concerning the changing phenomena in the field of astronomy. Using questionnaire method, we applied the test problems to 160 high school students in Taegu and Kyungpook areas. The results were as follows : the mean score of concept-learned group was 56.0 and that of unlearned group was 48.5. This means that the learned-group had been improved by concept-forming teaching.