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조규판,원재선,김동희,노채균,배영호 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.1
In this paper, we propose the high frequency resonant inverter of the time sharing type which has the effects that the duty cycle of each elements and the thermal loss can be reduce. The analysis of the proposed circuit is described generally by using the normalized parameters. Also, the principle of basic operation and the characteristics of drive were estimated by the switching frequency and the load parameters. And we got the data for designing by the characteristic values obtained at the estimate of characteristic. At the same time, the example of the design's method was proposed and the waveforms of simulation were compared with theoretical waveforms. It is certain that the proposed circuit will be used and expanded in the high frequency power supplies like induction heating systems.
Phase-Shift를 이용한 시분할형 부하병렬 고주파 인버터의 특성해석에 관한 연구
조규판,원재선,김동희,노채균,원규식,심광열 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.2
A half bridge time sharing type load parallel high frequency resonant inverter to give VVVF function in the inverter used as power source of induction heating at high frequency is presented in this paper. This proposed inverter can reduce distribution of the switching current because of using the current of serial resonant circuit to the input current of the parallel one and this paper also realize the output control of independence irrespective of the switching frequency using Phase-Shift. The analysis of the proposed circuit is generally described by using the normalized parameters. Also, the principle of basic operation and the its characteristics are estimated by the parameters, such as switching frequency, the variation of phase angle(φ) of Phase-Shift. It is certain that the proposed circuit will be used and expanded in the high frequency power supplies like induction heating systems.
이은우,조규판,김이국,김동희,이광식 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.2
This paper describes the protection from line to line fault current caused by the trouble of source the low voltage power line. The decision of interrupting capacity in the low voltage circuit breaker is based on foreign rules, environment and actual condition within a country. Congregation of full capacity rating, selective breaking method and cascade breaking method is based on relevance reference and catalog of a manufacturing company. From above result, we obtain the method of optimum coordination and contrive the convenience of actual experience application according to the importance of electricity installation. The calculation of breaking capacity and the application of breaking method investigate actual condition in the case of design of electricity installation established and enlarged for personal use in Gumi, Chilgok area recently and present the point at issue and countermeasure. In the future, I think that this data contribute not only the preventing of electricity installation accident but also of electricity installation accident.
항 C(rh`) 항체에 의한 지연 용혈성 수혈 반응 1 예
서정민,박동준,김판규,이혜경,조철수,심규식,박석준,이정득 대한내과학회 1993 대한내과학회지 Vol.45 No.1
A delayed hemolytic transfusion reaction precipitated by anti-C (rh') is described in a previously transfused 40-year-old man. Seven days after the transfusion of the 7 pints of red cells for anemia due to Mallory-Weiss syndrome, he experienced a fall in hematocrit and hemoglobinuria accompanied by a positive direct and indirect antiglobulin test. Anti-C (rh') was identified in the patients serum by Panel cell screening test.
조규판(Cho, Gyu-Pan),방희원(Bang, Hui-Won) 학습자중심교과교육학회 2018 학습자중심교과교육연구 Vol.18 No.22
본 연구의 목적은 청소년용 학습몰입척도를 개발하고 타당성을 검증하는 것이다. 이론 및 선행연구의 분석을 통해 학습몰입을 구성하는 요인으로 인지적 몰입, 정의적 몰입, 행동적 몰입의 세 요인을 추출하였으며, 구성요인에 부합하는 80문항을 제 작하였다. 측정하는 내용이 유사한 문항은 수정 또는 삭제하여 60문항을 1차 예비문항으로 선정하였다. 1차 예비문항에 대해 전문가 2인에게 내용타당도를 검증받아 인지적 몰입 13문항, 정의적 몰입 13문항, 행동적 몰입 14문항의 40문항을 본 조사를 위한 2차 예비문항으로 선정하였다. 부산시 중·고등학생 401명을 대상으로 본 조사를 실시한 뒤 타당화 과정을 거쳐 인지적 몰입 9문항, 정의적 몰입 9문항, 행동적 몰입 8문항의 3개 요인 총 26문항이 학습몰입척도의 최종 문항으로 선정되었다. 학습 몰입척도는 세 구성요인간의 상관이 높아 구인타당성이 입증되었으며, 문항내적합치도가 높아 신뢰도가 입증되었다. 따라서 본 연구에서 개발된 학습몰입척도는 청소년들의 학습몰입을 측정하는 도구로써 적합한 것으로 판단된다. The purpose of the study was to development the Learning Flow Scale for adolescent and examine its validity and reliability. Three sub-factors of learning flow were identified based on the result of literature review, which are cognitive flow, emotional flow, and behavioral flow. 80 items that represented the three factors were developed based on the result of literature review. 60 items were selected as the first preliminary survey by modifying or deleting similar sentences, and then the content validity was reviewed by two expert. As a result, 40 items were selected as 13 cognitive, 13 emotional, 14 behavioral learning flow. 401 middle or high school students in Busan were sampled for this study. Correlation analysis and factor analysis confirmed the three factors with 26 items that are 9 items for the cognitive learning flow, 9 items for emotional learning flow, and 8 items for behavioral learning flow. To examine the construct validity of the scale, correlation coefficient among three factors and total score of the scale was computed and they were highly correlated each other. The scale also had high internal consistency reliability. Therefore, the Learning Flow Scale has high validity and reliability so that it can be used to measure learning flow for adolescents.
조규판 ( Gyu Pan Cho ),권태우 ( Tae Woo Kwon ),김경원 ( Kyung Won Kim ) 인하대학교 교육연구소 2016 교육문화연구 Vol.22 No.1
본 연구의 목적은 고등학생용 눈치척도를 개발하고, 그 타당성을 검증하는 것이다. 문헌연구를 통하여 눈치를 구성하는 요인으로 정서적 눈치, 행동적 눈치를 설정한 후 이들 구성요인에부합되는 197문항을 제작하였다. 제작된 문항 중 내용이 유사한 문항을 수정하거나 삭제하여 95 문항을 1차 예비문항으로 선정한 다음 전문가의 검토를 거쳐 정서적 눈치 15문항, 행동적 눈치10문항 총 25문항을 선정하였다. 이들 문항으로 구성된 검사를 173명의 고등학생에게 실시하여문항과 구성요인간의 상관분석과 요인분석을 실시한 결과 정서적 눈치 7문항, 행동적 눈치 6문항의 2개요인 13개 문항이 최종 문항으로 선정되었다. 눈치척도는 두 구성요인과 척도의 총점간의 상관이 높아 구인타당성이 입증되었으며, 문항내적합치도가 높아 신뢰도가 입증되었다. 따라서 본 연구에서 개발된 눈치척도는 고등학생들의 눈치를 측정하는 도구로써 적합한 것으로 판단된다. The purpose of this study is to develop the Sense of Wit Scale for high school students, and examine the validity and reliability. Two factors of sense of wit were identified based on the results of literature review, which are emotional sense of wit and behavioral sense of wit. 197 items that represented the two factors were developed based on the result of literature review. 95 items were selected from the original questionnaire by researchers. 25 items, which are 15 items for emotional sense of wit factor and 10 items for behavioral sense of wit factor, were selected from 95 items based on review of a professional. 173 high school students were sampled for the study. Factor analysis confirmed the two factors with 13 items that are 7 items for emotional sense of wit factor 6 items for behavioral sense of wit factor. To examine the construct validity of the test, correlation coefficient between two factors and total score of the test was computed. Each factor was highly correlated with total score of the test. The Sense of Wit Scale also had high internal consistency. Therefore, the Sense of Wit Scale has high validity and reliability so that it can be used to measure sense of wit for high school students.