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리우올림픽과 타이페이 유니버시아드 대회 철봉 연기내용분석
윤창선,양태석 한국스포츠학회 2017 한국스포츠학회지 Vol.15 No.4
This study was performed to provide the level of performance improvement, flow and information of world-class athletes. For this study, a total of 18 players including 8 players in the final entry of the horizontal bar event in the 2016 Rio Olympic Games and 8 players in the final entry of the same event in the Taipei Universiade Competition were divided into two groups. Group elements, connection points, difficulties and preference skills of the final games of the horizontal bar game were processed into mean, standard deviation, and a percentage(%) using SPSS 18.0 and Excel 2010. The results of the study are as follows. First, the olympic group showed 31 times(46.25%) in GroupII and The universiade group indicated 34 times(42.50%) in GroupIII. Thus, the preferred group between two groups was different. Second, the D-score of the Olympic group was 6.91 points in D-score and 8.06 points in E-score. The Universiade group was 5.65 in D-score and 7.55in E-score. Third, D value of Adler with 1 / 2t. through hdst. in ovgr technology was performed 8 times by the Olympic group and 6 times by the Universiade group, suggesting that this technology he most preferred one among players. The results of this study will be a useful resource for Korean gymnasts and leaders as it will help to identify the skills and trends preferred by the world's top athletes and to prepare for the 2020 Tokyo Olympics Games. 본 연구는 세계적인 우수선수들의 경기력 향상 정도, 흐름과 정보를 제공하는 목적으로 수행하였다. 본 연구를 위하여 2016년 리우올림픽 철봉종목 결승진출선수 8명, 타이페이 유니버시아드대회 철봉종목 결승진출선수 8명 총16명의 대상을 두 집단으로 분류하여 진행하였다. 철봉결승 경기의 Group요소, 연결 가산점, 난도와 선호기술을 SPSS 18.0과 Excel2010을 이용하여 평균과 표준편차, 백분율(%)로 처리하였다. 연구결과는 다음과 같다. 첫째, 올림픽집단은 GroupⅡ를 31회(46.25%), 유니버시아드 집단은 GroupⅢ를 34회(42.50%)를 실시하여 두 대회별 선호 Group이 다르게 나타났다. 둘째, 올림픽 집단의 D-score는 6.91점, E-score 8.06점이며, 유니버시아드 집단은 D-score5.65점, E-score 7.55점으로 나타나 올림픽 집단이 D-score 1.26점, E-score 0.51점 더 받은 것으로 나타났다. 셋째, D난도인 Adler with 1/2t. through hdst. in ovgr 기술을 올림픽 집단 8회, 유니버시아드 집단 6회 실시하여 선수들이 가장 선호하는 기술로 나타났다. 이러한 본 연구의 결과는 세계우수선수들이 선호하는 기술과 흐름을 파악하여 2020년 도교올림픽을 준비하는데 우리나라 체조선수와 지도자에게 유용한 자료가 될 것이다.
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윤창선,유경선 한국물리학회 2005 새물리 Vol.51 No.1
The photoluminescence, the optical absorption, and the Hall effect of in MgxZn1−xTe : P (0.00 x 0.36) crystals grown by using the Bridgman method were investigated. The electrical properties exhibit increases in the hole concentration and the Hall mobility, which is caused by an increasing compensation with increasing Mg composition. The photoluminescence spectra showed free-bound (FB) transitions involving shallow P-acceptor centers. The optical absorption spectra exhibited an absorption peak at 1.06 eV that was due to an electronic transition from the spin-orbit valence band to the shallow P-acceptor level. The energy position of the peak was independent of the composition.
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윤창선 群山大學校 自然科學硏究所 1991 自然科學硏究 Vol.6 No.-
ZnIn₂Se₄박막을 flash evaporation 방법을 이용하여 만들었다. ZnIn₂Se₄박막은 격자상수가 a=5.17Å과 c=11.40Å인 diamond-like structure를 가지고 있었다. 광흡수 스펙트럼으로부터 구한 ZnIn₂Se₄박막의 direct energy gap은 300K에서 1.82eV로 주어졌다. 300-1800nm의 파장영역에서 측정한 ZnIn₂Se₄박막의 광전도도 스펙트럼은 1.19 eV, 1.42 eV 및 0.92 eV에 위치한 3개의 photoresponse band를 보여 주었으며, 이들 band의 mechanism을 비교, 논의하였다. ZnIn₂Se₄thin films were made by the flash evaportion method. ZnIn₂Se₄thin films have diamond-like sturcture with lattice constants a=5.17Å and c=11.40Å. The direct energy gap of ZnIn₂Se₄thin films determined by the optical absorption is 1.82eV at 300K. The photoconductivity of ZnIn₂Se₄thin films measured in the wavelength range 300-1800nm has shown three photoresponse bands at 1.91eV, 1.42eV and 0.92eV, and their mechanism were discussed in comparison with the other data.
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InSe 단결정의 Excition 흡수와 광전도도에 관한연구
尹昌先 群山大學校 1984 論文集 Vol.8 No.-
InSe single crystals were grown by the Bridgman method. The crystal structure of InSe is formed to be rhombohedral with the latice constant a=4.00Å and C=24.84Å. An investigation was made of the temperature dependence of the absorption edge from 15 to 300K. It is obtained that the temperature coefficients of energy gap and exciton ground state are respectively ?? and ??. Exciton binding energy was 14.3±0.3meV, which is independent of the change of temperature. From the photoconductivity spectra, a minimum of the photoresponse corresponding to the exciton absorption line is observed. Therefore of the photoconductivity line structure is interpreted to be due to the formation of excitons.
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尹昌先 群山大學校自然科學硏究所 1987 自然科學硏究 Vol.2 No.-
Bridgman방법으로 GaSe단결정을 성장시켰다. 실온에서 Laue사진과 X-선회절 측정은 GaSe단결정이 격자상수 a=3.75A, C=15.95A를 갖는 ε-polytype 육방구조임을 보여주고 있다. GaSe단결정에 대한 흡수단 부근의 광흡수 및 광전도도 스펙트럼을 10∼300K의 온도영역에서 조사하였다. Energy gap의 온도계수와 exciton 결합에너지는 각각 ??와 25±2meV임이 발견되었다. Energy gap의 온도의존성을 전 온도영역에서 electron-phonon 단거리 상호작용으로 분석되었다. GaSe single crystals were grown by Bridgman method. The Laue photographs and X-ray diffraction measurements show that GaSe single crystals belong to the hexagonal lattice, ε-polytype, with the latteie constant of a=3.75A and C=15.95A at room temperature. Optical absortion and photocondustivity spectra of GaSe single crystals have been investigated near the band edge in the temperature range 10 to 300K. The temperature coefficients of the energy gap and the exciton binding energy are found to be ?? and 25±2meV, respectivly. The temperature dependence of the energy gap have been analyzed by the short-range electron-phonon interaction in the full temperature range.
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