산업계의 견해

전정우,Jeon, Jeong-U 한국화재보험협회 1986 防災와 保險 Vol.28 No.-

반도체 제조 장비용 Stage 정밀제어 기술개발

전정우(J. W. JEON),강도현(D. H. KANG),김지원(J. W. KIM),전진홍(J. H. JEON),전영환(Y. W. JEON) 대한전기학회 2000 대한전기학회 학술대회 논문집 Vol.2000 No.11

태권도 지도자의 서번트 리더십이 의사소통 및 지도효율성에 미치는 영향

전정우(Jeon Jeong-Woo),윤정욱(Yoon Jung Wook),박선학(Park Sun-Hak) 한국체육과학회 2009 한국체육과학회지 Vol.18 No.2

The purpose of this study is to define the effect of Taekwondo Master's servant leadership on communication and instruction efficiency empirically, improve Taekwondo Master's instruction capability and quality of Taekwondo education and provide basic data for the right development of Taekwondo. For the study, the trainees attending Taekwondo halls, which are located in Seoul and Gyeonggi-do area in 2008, are selected. total 420 questionnaires were distributed by using convenience sampling method. After making study targets response through self-administrated method, total 403 questionnaires were used for analysis excluding 17 questionnaires, which have double or insincere entries. For data analysis, Windows for SPSS V. 15.0 Statistical Package was used. In order to analyze difference in demographic variable, communication and instruction efficiency according to study goal, descriptive analysis, independent sample t-test and one-way ANOVA were used. Following results were achieved through correlation analysis and standard multiple regression analysis. First, for the recognition of servant leadership, there was a partial difference in demographic variable. For gender, female has a higher recognition than male in the factor of devotion. Although there was a difference in the factor of vision depending on training period, it was not possible to check specific difference in post-hoc verification result. Because there was a significant difference in the factor of growth support depending on grade, it was appeared that middle school student has a higher recognition than 3rd and 4th grader of element school. It was appeared that geup holder has a higher recognition than pum holder in the factor of servant leadership excluding devotion. Second, there was a partial difference in communication and instruction efficiency depending on demographic characteristic. For the difference depending on school year, 6th grader had a higher recognition than 3rd and 4th grader in problematic communication and for the difference depending on class, geup holder had a higher recognition than pum holder in instruction efficiency but there was no significant difference depending on training period. Third, although servant leadership had a correlation with instruction efficiency, its correlation with communication was not checked. Specifically, all sub factors of servant leadership such as vision, growth support, community formation and devotion had correlations with recognized skill improvement and instruction satisfaction. However, their correlations with open communication and problematic communication were not found. In addition, although open communication had a correlation with problematic communication, there was not correlation with instruction efficiency. Fourth, although servant leadership did not give a significant effect on communication, it did on instruction efficiency. Specifically, although all sub factors of servant leadership such as vision, growth support, community formation and devotion had correlations with recognized skill improvement, just the sub factors such as growth support, community formation and devotion had correlations with recognized instruction satisfaction.

태권도 수련생 학부모의 참여요인 및 수련 기대 만족도에 대한 연구

전정우(Jeon Jeong-Woo),정현호(Jeong Hyun-Ho) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.2

The purpose of this study was to examine whether the demographic characteristics of parents whose children learned taekwondo made any differences to what made them decide to let their children learn it (hereinafter called motivation) and their satisfaction level with that decision. It's meant to seek effective ways of managing taekwondo training centers to keep up with changing circumstances around that. The subjects in this study were 443 parents selected by probability sampling from among people who resided in the city of Cheongju as of 2007. Their preschool and school-aged children got training in taekwondo. For data handling, SPSS 12.0 for Windows program was employed to make a frequency analysis, factor analysis, t-test and one- way ANOVA, and LSD posttest was conducted to look for any possible significant intergroup gaps. The findings of the study were as follows: 1) Relationship of Demographic Characteristics to the Motivation (1) The motivation of the parents was statistically significantly different according to age. (2) The motivation of the parents was statistically significantly different according to education. (3) The motivation of the parents was statistically significantly different according to occupation. (4) The motivation of the parents was statistically significantly different according to their children's gender. 2) Relationship of Demographic Characteristics to Satisfaction Level (1) Their age made a statistically significant difference to their satisfaction level. (2) Their academic level made a statistically significant difference to their satisfaction level. (3) The grade of their children made a statistically significant difference to their satisfaction level. The above-mentioned findings illustrated that in terms of the factors of letting children undergo training in taekwondo, satisfaction level with gym facilities, marketing and educational programs varied statistically significantly with age, academic background and occupation respectively, and the satisfaction level with marketing differed statistically significantly with child gender as well. In terms of expected satisfaction, whether taekwondo training satisfied their expectations in terms of social activities differed statistically significantly with age, and whether that met their expectations in terms of self-development was statistically significantly different according to academic credential. Whether that came up to their expectations in terms of social activities differed statistically significantly with child grade. The findings on taekwondo training among students are expected to serve as an opportunity to bolster the management and P.R. of taekwondo halls and to boost the promotion and growth of taekwondo as one of national sports

태권도 선수의 성별에 따른 발자세 형태별, 공격유형별 득점비교분석

전정우(Jeon Jeong-Woo),양대승(Yang Dae-Seung),한현식(Han Hyun-Sik) 한국체육과학회 1999 한국체육과학회지 Vol.8 No.2

고정밀 회전 및 축방향 이송을 위한 신개념 원통형 자기부상 스테이지

전정우(Jeong-Woo Jeon),MiticaCaraiani,이창린(Chang-Lin Lee),정연호(Yeon-Ho Jeong),김종문(Jong-Moon Kim),오현석(Hyeon-Seok Oh),김성신(Sungshin Kim) 대한전기학회 2012 전기학회논문지 Vol.61 No.12

In this paper, a conceptual design and a detailed design of novel cylindrical magnetic levitation stage is introduced. This is came from planar-typed magnetic levitation stage. The proposed stage is composed of cylinder-typed permanent magnet array and semi-cylinder-typed 3 phase winding module. When a proper current is induced at winding module, a magnetic levitation force between the permanent magnet array and winding module is generated. The proposed stage can precisely move the cylinder to rotations and translations as well as levitations with the magnetic levitation force. This advantage is useful to make a nano patterning on the surface of cylindrical specimen by using electron beam lithography under vacuum. Two methods are used to calculate required magnetic levitation forces. The one is 2D FEM analysis, the other is mathematical modeling. This paper shown that results of two methods are similar. An assistant plate is introduced to reduce required currents of winding module for levitations in vacuum. The mathematical model of cylindrical magnetic levitation stage is used for dynamic simulation of magnetic levitations. A lead-lag compensator is used for control of the model. Simulation results shown that the detail designed model of the cylindrical magnetic levitation stage with the assistant plate can be controlled very well.

한국무예의 다양성 증진을 위한 한,중,일 무예 이미지 분석

전정우(Jeong Woo Jeon) 한국사회체육학회 2011 한국사회체육학회지 Vol.0 No.45

The purpose of the study was to analyze Japanese recognition and image about Oriental representative martial arts (Taekwondo, Wu Shu, t``ai chi, Judo and Karate) and to apply the analysis to an increase in variety and influence of Korean martial arts including Taekwondo with people of Japan where had variety and influence on Oriental martial arts and came to modernization in advance. The study got the below conclusions by analyzing Japanese recognition and image about five Oriental martial arts. First, Taekwondo was not included in items which Japanese people associated the most early with the word of martial arts. Second, they didn`t have other images of Taekwondo excepting kicking, South Korea and Olympic in their association by each item. Namely, it is necessary to make a concrete plan to stimulate people`s association for development of Taekwondo. Third, they had similar images of four martial arts excepting Taekwondo. Changes of image are not connected with good results at all times. However, it is necessary to make an additional endeavor to secure more popular image by keeping core images such as quick kicking.

신체적활동 참여 기독교인의 교회만족도, 조직헌신도, 충성도, 구전의도와의 인과관계

전정우(Jeon, Jeong-Woo),김정모(Kim, Jung-Mo) 한국체육과학회 2012 한국체육과학회지 Vol.21 No.3

Korean churches have introduced and utilized physical activity programs in taking pastoral duties so that various programs, in which christians and non-christians participate, have been carried out. The physical activity programs help to increase the organizational force of church followers and improve the church image through the natural promotion to non-christians, and have been used as a tool of missionary work. But, the way to follow the programs unconditionally without professional knowledge or concrete methodology is considered negative in a society, and leads to the decrease in church followers’ satisfaction with church. Therefore, this study was intended to define the structural relations with church satisfaction and loyalty, organizational devotion, and word-of-mouth intention according to the physical activity participation of christians, and consequently propose a method to help each Korean church properly apply the physical activity programs utilizing sports to pastoral duties and utilize them as an effective tool of missionary work. Accordingly, to investigate the relation of cause and effect on church satisfaction, loyalty, organizational devotion, and word-of-mouth intention through christians’ participation into physical activities, this researcher selected as the population group mid-and large-sized churches with more than 1000 to less than 2000 registered followers and physical activity program facilities located in the Metropolitan area in 2011, and extracted samples by using systematic cluster sampling. Through the preliminary survey, factor analysis was performed, and survey questions were modified and supplemented. A total of 600 people participated in the questionnaire survey, but 8 people who didn’t respond to the survey was excluded so that 592 copies were distributed. Also, 16 copies, which had some questions omitted or insincerely responded so that it was hard to conduct statistical analysis, were excluded. As a result, valid 576 copies of the questionnaire were finally used for empirical analysis. As for the analytical materials, SPSS Windows V17.0 program and AMOS 16.0 program was used for analysis. This study used the following statistic schemes for data processing. First, to verify the validity and reliability of questionnaire copies collected in this study through the preliminary survey. Exploratory Factor Analysis (EFA) and reliability test were performed. Secondly, to analyze the relation of cause and effect on church satisfaction, organizational devotion, loyalty, and word-of-mouth intention through christians’ participation into physical activities, AMOS 16.0 was used to apply the measurement errors of main theoretical variables to a model so that Structural Equation Model (SEM) analysis, which helps to investigate the direct and indirect effects of variables, was performed. And, to prove that each one of theoretical hypotheses set in this study was discriminated empirically, Confirmatory Factor Analysis (CAF) was conducted. Sixthly, to analyze christians’ perception of participation into physical activities, Frequency Analysis through Multiple Response Group analysis was conducted. After analyzing the materials on the basis of the study methods described earlier, this researcher drew the following conclusion. The result of the analysis on the relation of cause and effect on church satisfaction, organizational devotion, loyalty, word-of-mouth intention through christians’ participation into physical activities presented that, regarding the relation between the satisfaction with external factors of church and word-of-mouth intention, the factors of organizational devotion and loyalty were found to have statistically significant indirect effects, and, regarding the relation between the satisfaction with internal factors of church and word-of-mouth intention, the factors of organization devotion and loyalty were found to have no statistically significant indirect effects.

에르븀첨가광섬유의 효율 개선을 위한 개구수 제어

전정우(J. U. Jeon),서한교(H. K. Seo),최성일(S. I. Choi),조윤희(Y. H. Cho),고석봉(S. B. Ko),정기태(K. T. Jeong) 한국통신학회 1997 한국통신학회 공개발표회 및 토론회 Vol.1997 No.4

[특집 제동Control] ABS System 개발동향

전정우(Jeong Woo Jeon),김용주(Yong Joo Kim) 한국자동차공학회 2004 오토저널 Vol.26 No.5