스포츠 경쟁상황과 수행력 수준에 따라 관찰학습이 자기효능감에 미치는 영향: 사회인지이론을 중심으로

권택용,신명진 한국스포츠심리학회 2019 한국스포츠심리학회지 Vol.30 No.1

Purpose: In this study, we examined the effect of interaction between competitive situation and performance level on observational learning and self-efficacy based on social cognitive theory. Methods: After random assignment of 211 athletes to the three groups of high state anxiety, low state anxiety and general situation, a hierarchical multiple regression analysis was conducted to verify the effect of observational learning on self-efficacy according to performance level. Results: It was found that the observational learning enhances the self-efficacy in high pressure situations with high performance players rather then low performance players. Observational learning increased self-efficacy regardless of performance level in low pressure condition, and this influence was higher for players with low performance than players with high performance. Conclusion: The cognitive process of human behavior presented in social cognitive theory was proved in the sports domain, and the extent to which observational learning predicted self-efficacy varied according to the competition situation. Therefore, it is important both theoretically and empirically to consider the various competitive situations existing in sports when measuring self-efficacy.

세슘 원자에 대한 레이저 냉각 및 온도 측정

권택용,이호성,양성훈 한국광학회 2000 한국광학회지 Vol.11 No.6

레이저 냉각법을 이용하여 세슘 원자의 온도를 도플러 냉각 한계온도 보다 낮은 온도까지 냉각하였다. 자기-광 포획된 원자를 더 냉각하기 위해서는 냉각용 레이저의 주파수를 더 적색편이 시켜야 하는데, 이를 위해 본 연구에서는 세슘 원자 흡수선의 Zeeman 이동을 이용하였다. 이 방법으로 레이저 주파수 안정화를 유지하면서 레이저의 주파수를 약 40MHz 만큼 이동시킬수 있었다. 비행시간 방법으로 측정한 레이저 냉각된 세슘원자의 최저온도는 $2.2\muK$\pm$0.5$\muK$이었다. 냉각된 원자의 온도를 레이저의 주파수 및 세기에 따라 측정하였는데, 이광자 냉각 이론에 의한 계산결과와 잘 일치한다는 것을 알았다. We cooled cesium atoms below the Doppler cooling limit by laser cooling. For this deep cooling of atoms, the laser frequency was shifted by using the Zeeman shift of an absorption line of cesium. The stabilization of the laser frequency was maintained while the laser frequency was shifted by 40 MHz within 2 ms. The lowest temperature of the laser-cooled cesium atoms was $2.2\muK$\pm$0.5$\muK$in this experiment. We measured the temperature of the laser-cooled cesium atoms as a function of the frequency detuuing and the intensity of the cooling laser. The results agreed well with the ones calculated by two-photon laser cooling theory.theory.

9.2 GHz 주파수 차이로 위상잠금된 두 외부 공진기 다이오드 레이저의 제작 및 특성 조사

권택용,신은주,유대혁,이호성,인민교,조혁,박상언,Kwon, Taek-Yong,Shin, Eun-Ju,Yoo, Dae-Hyuk,Lee, Ho-Sung,In, Min-Kyo,Cho, Hyuk,Park, Sang-Eon 한국광학회 2002 한국광학회지 Vol.13 No.6

9.2GHz 주파수 차이로 위상잠금(phase-locking)된 레이저 시스템을 제작하여 그 특성을 조사하였다. 외부공진기 다이오드 레이저 2대를 제작하고, 두 레이저가 9.2GHz 주파수 차이를갖도록 디지털 회로를 이용하여 위상잠금 하였다. 위상잠금된 두 레이저의 맥놀이 신호의 스펙트럼을 측정하였으며, 이로부터 신호의 반송률이 약 93%임을 알 수 있었다. 위상잠금된 두 레이서의 상대 선폭은 2Hz 이하였다. 위상잠금된 두 레이저의 맥놀이 신호의 위상잡음을 측정하였으며, 측정된 위상잡음 스펙트럼으로부터 적분시간 1s 이하에서 상대적인 주파수 안정도를 계산하였다. 적분시간 1s 이상에서는 주파수 측정방법으로 상대적인 주파수 안정도를 측정하였는데, 적분시간 20s 에서 알란편차는 $2.7{\times}10^{-19}$였다. We have constructed two extended-cavity diode lasers which are phase-locked with a 9.2 GHz frequency offset. We adopted a digital servo circuit for the phase-locking. The relative linewidth of the phase-locked lasers was less than 2 Hz. Using the measured beat spectrum, we found the carrier concentration to be about 93 %. We measured phase noise and relative frequency stability of the lasers. The Allan deviation at the gate time of 20 s was $2.7{\times}10^{-19}$.

대학운동선수의 사회적 상호의존성과 팀성과의 관계에서 팀원관계 및 응집력의 이중매개효과

권택용,신명진 한국스포츠심리학회 2019 한국스포츠심리학회지 Vol.30 No.2

Purpose: Based on the social interdependence theory, we examined whether the influence of social interdependence on team performance is a double-mediating effect of team member relationship(TMR) and cohesion. Methods: A questionnaire survey was conducted on 135 college athletes and statistical tests were conducted on the double-mediating effect through a macro program developed by Hayes (2018). Results: The higher the social interdependence, the better the TMR and the improved TMR affects the team performance by strengthening cohesion. The indirect effect of the double-mediating variables was also statistically significant. However, there was no statistical significance of the indirect effect of a mediating variable(social interdependence → teammate relationship → team performance, social interdependence → cohesion → team performance). Conclusion: In order to improve team performance through social interdependence, it is necessary to develop and apply intervention strategy that considers doble-mediating variables such as TMR and cohesion.

Phosphate 유리에 첨가된 Rhodium 이온의 에너지 준위

권택용 한국광학회 1993 한국광학회지 Vol.4 No.2

이 연구에서는 4d 전이원소인 rhodium 이온을 첨가한 유리의 광학적 특성을 조사하였다. Rhodium이 첨가된 phosphate유리의 광흡수, photoluminescence, 수명시간 등을 측정하고 여기에 Sugano-Tanabe의 strong-field scheme을 적용하여 해석한 결과 phosphate유리 속에서 rhodium은 R$h^{2+}$ 상태로 존재하며 이때 10Dq는 약$20,000cm^1$였다. $^2 E{\rightarrow}^2 T_1$과 $^2 E{\rightarrow}^2 T_2$ 천이에 의한 흡수대는 460nm에 중첩되어 나타나고, $^2 T_1{\rightarrow}^2 E$와 $^2 T_1{\rightarrow}^2 E$천이에 의한 luminescence대는 각각 650nm와 580nm에 나타났다. This is the first reported observation of absorption and emission of glasses with a 4d transition metal ion(rhodium). The optical absorption and photoluminescence spectra, and the lifetimes of rhodium ions in phosphate glasses are interpreted on the basis of strong-field scheme of Sugano-Tanabe diagram. We conclude that rhodium ion is present in its divalent form. $^2 E{\rightarrow}^2 T_1$ and $^2 E{\rightarrow}^2 T_2$ transitions are superimposed and observed at 460 nm. Whereas $^2 T_1{\rightarrow}^2 E$ and $^2 T_1{\rightarrow}^2 E$ transitions are observed at 650 nm and 580 nm, respectively.

승리/패배에 따른 귀인차원이 몰입에 미치는 영향: 감정과 관찰학습의 이중매개효과

권택용,신명진 한국스포츠심리학회 2020 한국스포츠심리학회지 Vol.31 No.1

Purpose: The purpose of this study is to examine the double-mediating effect of the attribution of wining and losing on athletes' flow through emotion and observation learning. Methods: To test this, a survey was conducted on 165 athletes (men=132) in 11 disciplines (wrestling, badminton, bowling, boxing, shooting, cycling, swimming, archery, taekwondo, tennis, squash) in Seoul and Gyeonggi Province. Results: After an important game victory, the pride increased as the cause was perceived internally, which induces observational learning behavior and has a positive effect on the flow experience. In contrast, in terms of stability and control, there was no double mediating effect such as attribution dimension → expectation or shame → observational learning → commitment. Conclusion: After victory, the internal attribution (or the external attribution in defeat) played an important role in predicting future performance. Of the three attribution dimension, the causal locus seems to have the greatest influence on the flow experience.

아동기 인지-운동발달 평가도구로써 단속성 안구운동의 적용가능성

권택용(Taeg Yong Kwon),이성노(Seg No Lee) 한국발육발달학회 2013 한국발육발달학회지 Vol.21 No.1

The purpose of this study is to provide theoretical and empirical evidence regarding possibility of adapting saccadic eye movement as tool to evaluate cognitive and motor development in children. Saccadic eye movement tasks can be designed to probe simple sensory-motor process as well as higher cognitive functions using different types of paradigm. Several studies deal with saccadic performance in children. The main findings of the investigation were that saccadic eye movement performance represents a sensitive indicator of maturation of the brain activity and motor development. However, to our knowledge, there are few studies to utilize saccadic eye movement to assess the cognitive and physical development in children. In this review paper, 1) the importance of saccadic eye movement in children, 2) age-related different parameter in saccade, 3) development of brain function related to saccade and finally, the future directions have been discussed.

中國語 注音符號의 制定 過程에 대하여 : Zhu'yin fu'ha´o

權宅龍 慶北大學校 語學硏究所 1989 語文硏究 Vol.14 No.-

자극행로의 변화가 예측타이밍의 시공간적 정확성에 미치는 영향

권택용(Kwon Taeg-Yong),박상범(Park Sang-Bum) 한국체육과학회 2008 한국체육과학회지 Vol.17 No.2

The purpose of this study was to investigate the possibility of utilizing visual information about changes in stimulus trajectory by analyzing the effect of unexpected changes in the trajectory of visual stimulus on the spatiotemporal accuracy of coincident timing response. Thirteen subjects performed timing task requiring wrist movement in coincident with the arrival of stimulus light at the target location. During the task, the point of change in the trajectory of stimulus moving at three velocities was manipulated by light emitting diode array. For each trial, the accuracy of timing was measured, from which constant error(CE), absolute error(AE), variable error(VE), and error rate were calculated. Analyses of the results revealed that the timing accuracy differed by stimulus velocity and the point of changes in the stimulus trajectory. CE and AE increased as stimulus velocity became faster and the point of change in the stimulus trajectory was delayed. Also, CE and AE for the point of change-2.5cm condition increased as stimulus velocity became slower. Error rate in the point of change-2.5cm and no-change conditions was larger than those in other conditions. These results suggest that the effect of changes in stimulus trajectory on the spatiotemporal accuracy of coincident timing differs by stimulus velocity, the point of change in the stimulus trajectory and time remained from the point of change to the initiation of response.

TSSG 법으로 육성한 LiB₃O5 단결정의 제2조화파 발생 특성

권택용(T. Y. Kwon),오학태(H. T. Oh),주정진(J. J. Ju),백현호(H. H. Baek),김정남(J. N. Kim),윤수인(S. I. Yun) 한국광학회 1994 한국광학회지 Vol.5 No.1

이 연구에서는 TSSG 법으로 육성한 LiB₃O_5(LBO) 단결정의 1064 ㎚ 광에 대한 type Ⅰ 및 type Ⅱ 제 2 조화파 발생(SHG) 특성을 조사하였다. Type Ⅰ SHG의 위상정합각은 θm=90°, φm=11.6°였고 angular acceptance bandwidth는 각각 δθintL½=3.3°-㎝½, θφintL=0.27° -㎝로 측정되었다. Type Ⅱ SHG의 위상정합각은 θm=20°, φm=90° 였고 angular acceptance bandwidth는 각각 δθintL=0.65° -㎝, δφintL½=35° -㎝½로 측정되었다. Type Ⅰ NCPM SHG 온도는 149℃였고 temperature bandwidth ΔTL은 4.8℃ -㎝였다. Nd:YAG 레이저의 peak power 가 171 MW/㎠일때 두께가 2.6 ㎜인 LBO 결정의 SHG 변환효율은 약 1.8%였고, 이차 비선형 계수 d₃₂는 약 0.74±0.05 pm/V로 측정되었다. The characteristics of the type Ⅰ and type Ⅱ SHG in LiB₃O_5 crystals grown by TSSG method have been investigated using 1064 ㎚ beam from a Q-switched Nd:YAG laser. The measured phase matching angles and angular acceptance bandwidths were θm=90°. φm=11.6°, δθintL½=3.3°-㎝½. δφintL=0.27°-㎝ for type Ⅰ SHG and θm=20°, φm=90°, δθintL=0.65°-㎝, δφintL½=3.5°-㎝½ for type Ⅱ SHG, respectively. The type Ⅰ NCPM temperature of 1064 ㎚ beam was found to be 149℃ with the temperature bandwidth ΔTL of 4.8℃ -㎝. An energy conversion efficiency of about 1.8% with 2.6 ㎜ thick LBO crystal at an incident power of 171 MW/㎠ was demonstrated. The measured d₃₂ was 0.74±0.05 pm/V.