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        • 브러시리스 직류 전동기용 새로운 센서리스 드라이브 개발에 관한 연구

          박정배(Jung-Bae Park), 장항제(Hang- Jea Chang), 이용순(Yong-Soon Lee), 유지윤(Ji-Yoon Yoo), 이광운(Kwang-Woon Lee), 여형기(Hyeong-Gee Yeo) 전력전자학회 2000 전력전자학술대회 논문집 Vol.2000 No.11

          In this paper, we proposed a new sensorless drive system for the trapezoidal type brushless DC motor, which does not use any mechanical position or speed sensor and applicable to the systems requiring a constant speed and torque such as Fan.<br/> For this, a novel indirect rotor position sensing technique based on a detailed analysis of the terminal voltage characteristics is proposed in this paper. And a sensorless drive system for the brushless DC motor is implemented using a 87c196mc for the main microprocessor, and a power FET for the inverter.<br/> The experimental results will show the validity of the proposed indirect sensing method and the practical use of the sensorless drive.

        • KCI등재

          원저 : 경증 두부손상 환자에 대한 두부전산화단층촬영의 역할

          박정배 ( Jung Bae Park ), 박철완 ( Cheol Wan Park ), 이근 ( Keun Lee ) 대한응급의학회 1994 大韓應急醫學會誌 Vol.5 No.1

          The deterrnination that a particular head injury is low-risk is usually made clinically. Observation at home or in the hospital has been the usual treatment for such patients. Recent reports of relatively high morbidity among patients with low-risk head injury in other countries suggest the need for advancement in diagnostic criteria. A retrospective review of 1202 patients admitted to Chung Ang Gil Hospital between January 1992 and June 1992 who had a Glasgow coma scale(GCS) score of 13 to 15 on admission and who experienced a brief loss of conscious- ness or amnesia after the injury, was performed to evaluate the benefit of computed tomographic(CT) scanning of the head. In 14.9% of patients abnormalities were seen on the initial CT scan and 5.7% required surgery. Among the 831 patients with GCS 15, 10.3% had abnormalities on the CT scan and 3.4% required neurosurgical operation. In cases of GCS 14, an initial CT scan showed abnormality in 19.5% and 8.1% needed operation. Only 4 of the 1022 patients with normal CT scans on admission showed subsequent deterioration and required operation. These figures suggest that history and neurologic examination alone are not adequate to assess head injury or severity of risk and that the addition of a CT scan greatly improves patient assessment. Patients with normal CT scans and with GCS 14 or 15 could be considered for observation at home because their chance of deterioration is so low, allowing hospital personnel to devote their full attention to more seriously injured patients.

        • 고속 전철용 단상 PWM 컨버터의 고조파 저감에 관한 연구

          박정배(Jung-Bae Park), 임훈규(Hoon-Kyu Lim), 이광운(Kwang-Woon Lee), 여형기(Hyeong-Gee Yeo), 유지윤(Ji-Yoon Yoo) 전력전자학회 1998 전력전자학술대회 논문집 Vol.- No.-

          In the high speed rail system, the distortion of the voltage and the current waveform of the input power line, increases the power loss and make a several electro-magnetic problems such as EMI or the interference of the communication line.<br/> In this paper, the control scheme of the PWM converter to make a good power factor and to regulate the output voltage as well as to reduce the harmonic component of the input current is proposed. Also a control schem of the PWM converter in the parallel operation to reduce the harmonics of the input current is proposed<br/>

        • KCI등재

          청소년활동 참여동기에 따른 청소년지도자의 효과적인 리더십 형태

          박정배(Park Jung-Bae), 송병국(Song Byeong-Kug) 한국청소년정책연구원 2010 한국청소년연구 Vol.21 No.1

          본 연구는 청소년활동 참여동기 수준이 다른 청소년들이 청소년활동에 지속적으로 참여하는데 영향을 미치는 청소년지도자의 리더십 유형을 실증적으로 밝히고 그 시사점을 찾기 위해 수행되었다. 연구의 목적을 달성하기 위해 서울경기지역 청소년수련관 10곳을 선정하여, 수련관에 소속된 동아리 회원 235명의 응답을 분석에 이용하였으며, SPSSWIN/ver14.0과 AMOS 4.0 통계프로그램을 사용하여 상관관계분석, 다중회귀분석, 경로분석을 통해 분석하였다. 연구결과 자유방임적리더십은 청소년활동 참여동기와 활동지속의지에 영향을 주지 못하는 것으로 나타났다. 또한 거래적리더십의 경우 외적동기를 통한 간접효과만을 갖는 것으로 나타났으며, 변혁적리더십의 경우 내적 동기를 통한 간접효과 뿐 아니라 무동기를 통한 간접효과를 갖는 것으로 나타났다. 특히 청소년활동 지속의지에 대한 효과 크기를 비교해본 결과 거래적리더십보다 변혁적리더십이 효과적인 것으로 나타났다. The purpose of this study was to explore the effective leadership elements of youth leaders which effect the continuance in activities by youth based on motivation. The subjects were 235 youths affiliated with youth centers in Seoul and Kyong-Gi-Do. Pearson Correlation, Multiple Regression, Path Analysis with SPSSWIN 14.0 and AMOS 4.0 were used for the purposes of data analysis. The results indicated that Laissez-faire leadership had no effect on youth activity motivation and continuance. Transactional leadership had an indirect effect on the continuance of the activity by youth when mediated by extrinsic motivation. However, transformational leadership had an indirect effect on the continuance of the activity by youth when mediated by intrinsic motivation and amotivation. As to the degree of effect on the continuance of the activity by youth, transformational leadership was mere effective than transactional leadership.

        • KCI등재
        • KCI등재

          청소년 축구동아리 학생들이 지각하는 스포츠용품 브랜드 구매결정요인이 브랜드자산에 미치는 영향

          박정배(Park, Jung-Bae), 이태용(Lee, Tae-Yong) 한국사회체육학회 2015 한국사회체육학회지 Vol.0 No.61

          The purpose of this study is to seek out the relations between concepts through establishes the relation between the brand equity and the purchase decision factors of sports goods by youth football club students based on theoretical backgrounds and also, to provide basic data that is needed to study on the sports goods consumers. This study represents a population of 373 persons who are selected as the subject for the final analysis of this study, by the convenient sampling method, from football club students in 20 high schools located in B Metropolitan city, U Metropolitan city, or K Prefecture. For processing data, Window SPSS 15.0 statistics package is used as follows, and the significance level of all data analysis is a=.05. Factor analysis, reliability analysis, co-relation analysis, frequency analysis, and multiple regression analysis have been done, and the results of these analyses are as follows: First, among sports goods purchase decision factors, advertisement has a positive effect on the brand loyalty. Second, such factors as quality, brand, and purchase place among sports goods purchase decision factors have a positive effect on the brand image. Third, such factors as quality, brand, and purchase place among sports goods purchase decision factors have a positive effect on the brand awareness.

        • KCI등재

          청소년활동몰입 관련요인에 대한 구조분석

          박정배(Park, Jung-Bae), 송병국(Song, Byeong-Kug) 한국청소년정책연구원 2011 한국청소년연구 Vol.22 No.4

          이 연구의 목적은 청소년활동 진행과정에서 청소년활동 참여자의 청소년활동몰입을 설명하는 종합모델을 구안하고, 청소년활동몰입에 영향을 미치는 관련요인들 간의 구조적 인과관계를 밝히는데 있다. 연구의 목적을 달성하기 위해, 청소년수련시설에서 운영하는 청소년활동에 참여한 460명의 중학생을 대상으로 설문조사를 실시하였다. 배포된 설문지 중 417매가 회수되었으며, 분석에 적합하지 않은 설문지를 제외한 301매가 분석에 이용되었다. 수집된 자료는 AMOS 4.0을 사용하여 공변량구조분석을 실시하였으며, 경로계수의 통계적 유의수준은 5%였다. 연구결과에 따르면 가정환경요인은 자기목적적성격에 직접적인 정적영향(β=.61)을 갖고 있었다. 주관적 안녕감을 유의하게 설명하고 있는 변인은 동료관계(β=.25), 가정환경요인(β=.21) 그리고 지도자관계(β=.14)였으며, 매개변인인 자기목적적 성격은 주관적 안녕감에 유의한 영향을 미치지 못하는 것으로 나타났다. 또한 활동진행내용요인(β=.40), 활동진행방법요인(β=.37), 자기목적적 성격(β=.21), 주관적 안녕감(β=.10)은 청소년활동몰입에 직접효과를 갖는 것으로 나타났으며, 독립변인인 가정환경요인(β=.16), 지도자관계(β=.01), 동료관계(β=.02)는 청소년활동몰입에 유의한 간접효과를 갖는 것으로 나타났다. The purpose of this study is to create and evaluate a structural model through the identification of the cause-and-effect relationships among factors that affect the youth activity flow of participants in youth activity programs. The subjects in this study were 460 middle school students who had participated in a youth activity program managed by a youth center. The reliability and validity of the questionnaire used was proven through a preliminary research Exercise. Out of a total of 460 questionnaires, 417 were collected, invalid or otherwise inappropriate questionnaires were exempted and 301 questionnaires were used in the research. AMOS 4.0 was used to examine the covariance and the level of statistical significance was 5%. The results of this research are as follows. Family environment was found to statistically influence autotelic personality(β=.61). Moreover, a positive relationship with teammates(β=.25), family environment(β=.25), and a positive relationship with one's leader(β=.14) directly affected subjective well-being. However, the family environment did not directly affect subjective well-being. Additionally, the activity content factor(β=.40), the activity method factor(β=.37), autotelic personality (β=.21) and subjective well-being(β=.10) directly affected the level of the participants'youth activity flow. The factor of family environment (β=.16), autotelic personality (β=.01) and the relationship between leader and teammates (β=.02) indirectly affected the level of the participants'youth activity flow.

        • KCI등재

          멘토링 효과성 측정영역 및 지표 구인을 위한 탐색적 연구

          모상현(Sang Hyun Mo), 박정배(Jung Bae Park), 진은설(Eun Seol Jin) 한국청소년학회 2012 청소년학연구 Vol.19 No.12

          본 연구는 멘토링 효과성 측정도구 개발을 위한 기초연구로서 효과성 영역과 지표에 대한 탐색을 통해 멘토링 효과성 도구개발을 위한 경험적 토대를 마련하고자 하였다. 이는 최근 멘토링 프로그램의 활성화와 함께 효과성 측정에 대한 요구가 증가하고 있는 상황에서 지표에 기초한 척도의 개발과 활용을 통해 다양한 멘티의 발달양상을 파악할 수 있는 근거를 마련할 수 있기 때문이다. 측정요인 구인을 위해 멘토링 실무자에 대한 설문조사와 전문가 대상 의견조사를 실시하였다. 연구결과 심리적 영역, 사회적 영역, 학업성취 영역, 문제행동 영역, 진로 영역, 서비스 만족도 영역 등 6개 효과성 측정영역과 57개의 측정지표를 중심으로 멘토링 효과성 측정도구 구성안을 제안하였다. 또한 각 영역별 중요 지표를 제시함으로 현장에서 효과성 측정도구 활용에 대한 이해를 돕고자 하였다. This study as basic research for the development of mentoring effectiveness measurement tool aims to offer the empirical foundation through pilot on measurement areas and indicators of mentoring effectiveness. The development of mentoring effectiveness scale based on measurement indicators provides a basis to identify various aspects of the development of mentees in a situation where a growing demand for the activation of a mentoring program and measuring mentoring effectiveness. For the construct of measurement tools were conducted survey for mentoring field staffs and opinion survey(delphi) for mentoring experts. As a result of surveys, we have founded 6 mentoring effectiveness areas; ??psychological area, social area, area of academic achievement, problem behavior areas, career areas, service satisfaction area and 57 measurement indicators. Based on the results was proposed effectiveness measurement tool. Hereupon, this study results are aimed at helping to utilize of the effectiveness measurement tool in the field by presenting the key indicators in each area.

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