Influence of nano calcium phosphate (CaP) composition to in vitro degradation and biocompatibility of 3D printed-based poly(lactic acid)/CaP nanocomposites

정현도 한국공업화학회 2021 한국공업화학회 연구논문 초록집 Vol.2021 No.0

Hydroxyapatite coating on 3D printed PEEK/Ti scaffolds for improved strength and biological performance

정현도 한국공업화학회 2022 한국공업화학회 연구논문 초록집 Vol.2022 No.-

Viper fang-inspired microneedle patches by 4D printing for accelerating incisional and diabetic wound healing

정현도 한국공업화학회 2024 한국공업화학회 연구논문 초록집 Vol.2024 No.0

The Characteristics of Vh Gene Family Expression in Early B Cells

정현도 부산수산대학 해양과학연구소 1995 연구논문집-부산수산대학교 해양과학공동연구소 Vol.27 No.-

Presence of low level infected iridovirus in sea perch Lateolabrax sp. imported to Korea

정현도,정준범 한국어병학회 2010 한국어병학회지 Vol.23 No.1

We have identified an iridovirus CH-1 from sea perch Lateolabrax sp. healthy externally and imported from China to Korea. In a comparison of the nucleotide sequences of the five different genomic regions, the CH-1 appears to be closely related to the ISKNV, IVS-1 and Ehime-1 strains detected in China, Korea and Japan respectively. In quantitative comparison of the viral DNA, level of CH-1 in tissue of imported fish was 10,000 times lower than that of IVS-1 strain presented in the infected rock bream Oplegnathus fasciatus of moribund stage. It allowed us to speculate the possibility of the asymtomatic iridovirus infection in the culturing sea perch. Such possibility of asymptomatic infection was supported by result of no appearance of dead fish with typical symptoms of iridoviral disease in keeping experiment of the imported sea pearch in laboratory for more than three weeks. Such asymptomatic infections with iridovirus were also found in spleen of the culturing and externally healthy sea perch of Korea by the presence of the iridoviral DNA in nested PCR.

장애인 남ㆍ여 태권도 선수들의 체급별 득점, 금지행위 및 승패판정 비교 분석

정현도 세계태권도문화학회 2013 세계태권도문화학회지 Vol.- No.7

본 연구는 목적은 장애인 남ㆍ 여 태권도 선수들의 경기에서 승패를 좌우하는 체급별 득점, 금지행위 및 승패판정 등을 비교, 분석하여 장애인 태권도 현황 및 활성화 방안을 위한 기초자료를 제공하는데 있다. 이를 위해 제 33회 전국장애인체육대회 태권도 경기에 참가한 남자 선수 3체급, 여자 선수 2체급 등 체급별 준결승(2게임), 결승(1게임) 등 총 15게임 중 기권으로 경기를 포기한 1게임을 제외한 14게임 28명을 대상으로 하였다. 득점 및 금지행위에 대한 경고 및 감점의 수는 횟수로 계산하였으며, 각 체급별 회전별 차이는 백분율(%)로 분석하였다. 남 ㆍ 여 각 경기의 체급별 득점, 금지행위 및 승패판정 등을 분석하여 다음과 같은 결론을 얻었다. 첫째, 남 ㆍ 여 체급별 득점 분석에서는 전체 14게임의 총 득점수 151점 중 남자 선수는 9게임 103점으로 평균 득점 수는 11.4점, 여자선수는 5게임에서 48점으로 평균 득점 수는 9.6점으로 남자 선수의 득점력이 더 높게 나타났다. 둘째, 남 ㆍ 여 금지행위의 분석에서 경고의 수는 총 23개로 남자 선수는 9게임에서 17개로 승자 9개, 패자 8개, 평균 경고의 수는 1.8개, 여자 선수는 5게임에서 6개, 승자 2개, 패자 4개, 평균 경고의 수 1.6개로 남자 선수가 경고를 좀 더 많이 받은 것으로 나타났다. 총 경고의 수 23개 중 남자 선수가 받은 경고의 수는 17개로 승자가 받은 경고는 9개, 패자는 8개로 승자가 경고를 더 많이 받은 것으로 나타났으나, 여자 선수 경고의 수는 6개로 패자가 4개, 승자가 2개로 패자가 더 많이 받은 것으로 나타났다. 셋째, 남ㆍ여 승패판정 분석에서는 총 15게임 중 RSC승이 7게임, 기권승 1게임, 판정승 7게임으로 나타났다. 남자 경기에서는 총 9게임 중 RSC승이 5게임, 판정승이 4게임으로 나타났으나, 여자 경기에서는 총 6게임 중 기권승 1게임, RSC승이 2게임, 판정승이 3게임으로 나타나 남자 경기에서 RSC승이 높게 나타나 큰 차이를 보였다. 이상의 연구결과로 보아 장애인 선수 부족으로 대회에 불참한 시 ㆍ 도 협회가 많았으며, 각각 선수들과의 경기력 수준의 차이가 크게 나타났다. 앞으로 장애인 체육회와 장애인태권도협회에서는 장애인 태권도 활성화를 위한 다양한 홍보는 물론 경기력 향상을 위해 우수 선수 발굴 육성과 지도자 양성을 위해 적극적인 지원과 관심이 필요하다. This study provides useful data in the improvement and in the development of taekwondo for the disabled. This study did a comparative analysis of how various weight classes and penalty actions incurred during a match can affect match decision judgments for the disabled players. This study is based on matches conducted during 33rd National Taekwondo Competition for the disabled. This study included results from 28 athletes from 15 matches including the one match withdrawal. More specifically, male players competed in three weight classes and female players participated in two weight classes. In addition, the players in each of the weight classes included 2 semifinal matches, and one final match totaling 14 matches participated by the athletes. Scoring, penalty warnings, and point deduction were all tabulated by the frequency of occurrence during this study. From the analysis of this study, the following is a summary of the results from this study. First, 151 total points were received in the 14 matches. Male participants scored earned 103 points from nine matches and an average score of 11.4 points. Female participants scored earned 48 points from five matches and an average score of 9.6 points. From these results, male participants showed greater ability to score more points. Second, analysis of penalty warnings showed 23 warnings. Male players received 17 warnings from nine matches. More importantly, there were nine winners who received penalty warnings while players who lost received eight warnings. The average warning per match was 1.8 warning. Female players received six warnings from five matches. There were two winners and four who lost. The average warnings for female players were 1.6 warnings per match. From this analysis, male participants received more warnings. More importantly, male winners received more warnings while female participants who received more warnings resulted in losses. Third, analysis of decision judgment were based on 15 matches including the one withdrawal had seven RSC win-based decision. There were also seven wins based on referee judgment. Nine male competitions had five RSC wins and four wins based on referee judgment. Next, six female competitions had one withdraw, two RSC based wins, and three referee based wins. RSC based results indicate much higher rate of wins for male players than the female players. Finally, from this study, it was shown that many city and provincial municipalities did not participate due to the lack of disabled participants. Moreover, there was a great disparity among the players who participated in terms of their abilities and skills. Based on this study, there needs to be more awareness and promotion of taekwondo for the disabled in order to find able athletes and develop their talents. In addition, there needs to be more training for taekwondo instructors for the disabled. Lastly, there needs to be a lot more marketing and promotion to cultivate taekwondo for the disabled players. This needs to be conducted by Sports Association for the Disabled and Taekwondo Association for the Disabled.

태권도가 초등학생들의 인성교육에 미치는 영향

정현도 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.5

태권도 선수들의 심판 판정에 관한 조사 연구

정현도 한국스포츠리서치 2005 한국 스포츠 리서치 Vol.16 No.3

태권도 국기원 고단자 심사 개선 방안

정현도 세계태권도문화학회 2020 세계태권도문화학회지 Vol.11 No.3

This study examines the present state and problems of judging of high-level Taekwondo players conducted by the Kukkiwon to present improvement methods and provide reference material for the fairness and qualitative enhancement of high-level judging. For this, this study deduced the following results through a literary review of previous studies. First, instead of handwritten scoring, digital (online) scoring methods should be adopted to secure the authority and fairness of high-level judging. Second, judging subjects should be expanded to include Taegeuk Poomsae, sparring, breaking, and defensive tactics for continuous Taekwondo training to be accomplished. Third, Keep of sparring time and provide prior training on sparing according to the examinees schedule. Fourth, judging manual standardization of dans should urgently be made as high-level player judging standards are not subdivided. Fifth, assembled items for breaking should be changed to real objects (pine boards, roof tiles, and bricks, etc.) to raise the authority of high-level players and to provide turning points for the verification of constant training and breaking skills. Sixth, preliminary breaking education time should be extended and practical education that allows examinees to perform actual breaking practice is needed. Seventh, individual judging table arrangements will aim for judging fairness by preventing prior conversations of the judges. Eighth, Taegeuk Poomsae and high-level player Poomsae rankings and Jaejack must be reviewed. Ninth, there should be discussions on whether the standard age at which Dan 9 examinees can move up should be raised to 61 years of age.

태권도 수련과 인성교육과의 관련성에 관한 고찰

정현도 한국무예학회 2018 무예연구 Vol.12 No.4

For the revitalization of Taekwondo studios which are facing deterioration in management conditions due to a decline in the school-age population caused by a long-term economic downturn, low birthrate, and people’s refusal to get married, this study aims to present the correlation between Taekwondo training and character education through literature survey and to provide base material that can aid the management of Taekwondo studios in the future. For this, the present study drew the following conclusions through literary research of previous studies. First, Taekwondo training improves etiquette. Second, Taekwondo training promotes sociability (peer relationships). Third, Taekwondo training fosters a law abiding spirit (sociality). Fourth, Taekwondo training improves self-awareness and confidence. Fifth, Taekwondo training forms a sense of cooperation. Sixth, Taekwondo training improves leadership. Seventh, Taekwondo training breeds self-control and patience. Eighth, Taekwondo training brings positive effects to school life and daily attitudes. Ninth, Taekwondo training develops emotional aspects. Tenth, Taekwondo training enhances intellectual levels. 본 연구는 장기간 경제 침체, 저 출산, 비혼 등으로 인한 학령인구의 감소로 갈수록 경영악화로 시달리고 있는 태권도장의 활성화를 위하여 태권도 수련과 인성교육과의 관련성에 관하여 문헌조사를 통하여 제시함으로써 향후 태권도장 운영에 도움이 될 만한 기초자료를 제공하는데 그 목적이 있다. 이를 위하여 본 연구는 그동안의 선행연구들의 문헌적 고찰을 통하여 다음과 같은 결론을 도출하였다. 첫째, 태권도 수련으로 예의를 향상시킨다. 둘째, 태권도 수련으로 사교성(교우관계)을 길러준다. 셋째, 태권도 수련으로 준법정신(사회성)을 함양한다. 넷째, 태권도 수련으로 자아확립 및 자신감을 향상시킨다. 다섯째, 태권도 수련은 협동심을 형성시킨다. 여섯째, 태권도 수련으로 리더십을 향상시킨다. 일곱째, 태권도 수련은 극기와 인내심을 길러 준다. 여덟째, 태권도 수련은 학교생활면, 일상생활 태도 면에서 긍정적인 효과를 가져다준다. 아홉째, 태권도 수련으로 정서적 측면이 발달한다. 열째, 태권도 수련으로 지(知)적수준이 향상된다. 이와 같은 연구 결과를 종합 해 볼 때 태권도 수련을 통하여 수련생들이 태권도 정신 등을 통한 인성교육은 물론 학습능률향상, 학교생활태도, 공동체 의식, 기본생활습관, 효(孝)행에도 지대한 영향을 미치고 있음을 확인 할 수 있었다.