• 건강소식
• /
• v.20 no.10 s.215
• /
• pp.8-9
• /
• 1996

• Korean Architects
• /
• no.2 s.286
• /
• pp.46-47
• /
• 1993

• 프린팅코리아
• /
• s.21
• /
• pp.116-117
• /
• 2004

• Journal of the Korea Convergence Society
• /
• v.9 no.10
• /
• pp.423-432
• /
• 2018

The purpose of this study was to investigate the differences in upper and lower strengths and symmetry between upper body injury group, lower body injury group and non-injury group of bowling athletes. The subjects were the upper body injury group (UG), n = 16, the low body injury group (LG), n = 8, the non injury group, [NG], n = 15). The isometric strength of the bowler was measured using Manual Muscle Tester 01165 (Lafayette Instrument Company, USA) and the symmetry index (SI) was calculated. The results were as follow. The symmetry index of hip extension strength and hip external rotation strength was statistically larger in NG than LG (p <.05). The above results suggest that lower body strength and bilateral symmetry was closely related to injuries of the lower body. In order to prevent injury of the bowler, strengthening of lower body strength and symmetrical training are needed.

• Korean Journal of Applied Biomechanics
• /
• v.19 no.1
• /
• pp.67-75
• /
• 2009

The purpose of this study is to analyze the effects of target position on the bowling motion. Four female high school athletes with more than four years of bowling experiences were recruited to this study. The major results of this study are as follows; When a subject treats the 1st pin, The spin angle of a coxa for the target position is largely kept from the downswing to the backswing peak point. When a subject treats the 7th pin, As the 7th pin exists at the left side for the right shoulder axis of the thrower, the movement of the ball center of the thrower from side to side is the lowest. In addition, the time required and horizontal speed appear the highest in the release section. The slant angle of a shoulder is largely increased as she moves from the backswing peak point to the release section. The twist angle of a shoulder also appears small as a throw motion is made toward the left side. When a subject treats the 10th pin, The spin angle of a shoulder and the twist angle of a body in motion appear the largest in the release section. So, there are the effects of target position on the bowling motion.

• Science of Emotion and Sensibility
• /
• v.20 no.1
• /
• pp.49-56
• /
• 2017

The purpose of this study was to investigate the effects of virtual reality bowling on emotional changes using EEG (Electroencephalogram). Sixteen bowling players who have at least three years of experiences in bowling participated in this study. Their aged ranged from 26 to 35 years old with a mean age of 29.6 years. The frontal lobes (Fp2-Fp1, F4-F3, F8-F7) of each player were measured while subjects were performing five games of bowling. And after performing every frame, their emotion was measured immediately with Visual Analogue Scale. The data were analyzed by one-way analysis of variance to test differences in the alpha value of each region of the frontal lobes. The dependent variable is the alpha power of the cerebral asymmetry. The results showed that players who scored a strike showed higher VAS values than those who missed the spares or cleared the spares; those who cleared spares showed higher VAS values than those who missed spares In addition, with respect to frontal R-L asymmetry score, the alpha-wave of the left frontal lobe was activated when scoring a strike and clearing spares and the alpha-wave of the right frontal lobe was activated when missing spares. In conclusion, the results of this study demonstrated that success or achievement in competition gives rise to positive emotions and vice versa. This study neurophysiologically proved that performance outcomes during a competition directly influence players' emotion and brain waves.

• The Korean Publising Journal, Monthly
• /
• s.238
• /
• pp.14-15
• /
• 1998

경기력 향상을 위한 매뉴얼은 주로 태권도.볼링.테니스.골프 등 참여인구가 높은 종목의 책들이 많다. 팬을 위한 매뉴얼은 프로와 아마추어의 벽을 뛰어넘어 시즌 전망, 권력과 선수분석을 담은 수준 높은 책들이 많다.

• Proceedings of the Korea Society of Design Studies Conference
• /
• 1999.10a
• /
• pp.78-79
• /
• 1999

신제품디자인개발은 시작에서 끝까지 여러 가지 단계가 존재하는 프로세스이다. 보편적으로 이 프로세스는 시장기회확보 단계로부터 시작하여 아이디어산출, 제품디자인, 제품디자인 평가 제품디자인 메니지먼트 및 제품 출시와 그 이후까지 계속되어 여러 부서 사람들에 의해 수행되는 활동이다. (중략)

• Korean Journal of Plant Tissue Culture
• /
• v.22 no.3
• /
• pp.165-168
• /
• 1995

The embryos formed from anther culture of peony exhibited divergent morphologies. The frequency of normal embryos with two cotyledons was about two times higher in the embryos formed through direct embryogenesis than those formed from callus. About 69% of the embryos with two cotyledons converted into normal plants, but convention rate of the abnormal embryos with one and three or four cotyledons was only 4 to 9%. The embryos of hem and bowling pin shape did not undergo development into normal plants.

• Journal of Hydrogen and New Energy
• /
• v.14 no.4
• /
• pp.313-320
• /
• 2003

볼밀링법을 이용하여 타이타늄 스펀지와 칩 또는 스크랩으로부터 상온애서 직접 타이타늄 수소와 분말을 재조하는 실험을 행하였다. 실험결과 진공중에서 볼링을 행한 타이타늄 스펀지와 칩의 경우 24시간외 후 합금분말의 크기는 약 20 um 정도의 크기를 갖는 것을 확인하였다. 그러나 수소화 분위기에서 볼밀링을 행한 경우에 12시간 후 수소화분말의 입도는 0.1-0.2 um로 극히 미세한 합금 분말이 제조되었다. 수소분위기에서의 볼밀링에 의한 타이타늄 분말제조는 기존의 방법에 비해 열을 가하지 않고 타이타늄 수소화분말을 얻을 수 있다는 장점과 나노크기의 미세한 수소화 분말을 얻을 수 있음을 알 수 있었다.