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기능적 다리 길이 차이가 압력 중심점과 안정성 한계에 미치는 영향
조아라,손광희,이유리,하민주,민지원,구현모,Jo, A-Ra,Min, Ji-Won,Son, Kwang-Hee,Lee, Yu-Ri,Ha, Min-Ju,Koo, Hyun-Mo 대한고유수용성신경근촉진법학회 2014 PNF and Movement Vol.12 No.4
Purpose: The purpose of this study was functional leg length inequality effect on COP(Center Of Pressure) and LOS(limits Of Stability) and EMG activation. Methods: The participants were consisted of fourteen. Subjects were distributed 2 groups; control group, leg length inequality ${\leq}3mm$, n=8), experimental group(leg length inequality${\geq}10mm$, n=8). The participants were measured leg length wearing comfortable clothes through tape measure method(TMM). All subjects was measured COP(Center Of Pressure), LOS(limits of stability) using by Balance Trainer BT4(HUR, Finland). Results: The results COP was not exist statistical significant differences(p>0.05). LOS was not exist statistical significant difference(p>0.05). Conclusion: The results was not statistical significant differences COP and LOS depending on Leg Length Inequality. But between experimental group and comparison group was exist mean differences on COP, LOS(COP:Ex.>Com, LOS:Ex. <Com/excepted some data). Somewhat COP and LOS was affected on by Leg Length Inequality. Balance is affected on Leg Length Inequality partly.
조아라(Jo, A Ra) 동아시아일본학회 2015 일본문화연구 Vol.0 No.56
본고는 아타라시키무라의 창설을 기점으로 이상사회에 대한 무샤노코지의 구상과 현실의 괴리를 고찰하고자 하였다. 이를 위해 무샤노코지가 아타라시키무라의 제창을 위해 쓴 『아타라시키무라에 관한 대화』와 『아타라시키무라의 설명 및 회칙』 을 분석, 비교하였다. 이와 같은 작업을 통해 무샤노코지가 자신의 이상을 현실화하기 위해 제시했던 계획을 실제로 이행하고 있는 것을 확인할 수 있었다. ‘불합리한 생활을 개선하여, 서로 행복하고 인간답게 살고 싶다’는 그의 이상은 아타라시키무라 창설의 원동력이 되었으며, 또한 그는 아타라시키무라를 운영해 나가는 과정에서도 끊임없이 노력하고 궁리했을 것이다. 무샤노 코지의 이러한 자세는 아타라시키무라가 거의 100년에 가까운 역사를 지니게 된 이유 중의 하나라 할 수 있다. This paper focuses on Mushanokoji Saneatsu’s conception and foundation of Atarashikimura. For this, I examined the conditions of ideal society and the terms of the foundation of Atarashikimura through Mushanokoji’s books, The Conversation about Atarashikimura and The Explanation and Rules of Atarashikimura. By comparing the two texts, I was able to discover his volition to narrow the distance between the ideal and reality. Through the analysis of the two texts, I recognized that he actually carried out the plans suggested at the last part of the second conversation, to realize his own ideals. He consistently deliberated and tried to fulfill his plans in the process of the foundation and management of Atarashikimura. This attitude might be one of the reasons why Atarashikimura has an almost 100-year-old history. Also, Mushanokoji’s ideals to live like a human being and live more happily may have been his motives to found Atarashikimura.
배드민턴 스매시와 드롭 동작 시 선수의 기량 차이에 따른 상지 동작의 운동학적 비교 분석
조아라 ( A Ra Jo ),류시현 ( Si Hyun Yoo ),윤석훈 ( Suk Hoon Yoon ) 한국운동역학회 2013 한국운동역학회지 Vol.23 No.3
The aim of this study was to investigate badminton smash and drop motion depends on player`s level. To perform this study, ten male badminton players were participated: five skilled players (SG, age: 21.6±1.1 yrs, height: 181.4±6.8 cm, body mass: 72.4±5.7 kg, career: 11.2±1.1 yrs) and five less-skilled players (LSG, age: 21.2±1.1 yrs, height: 180.2±5.6 cm, body mass: 73.6±6.7 kg, career: 10.6±0.9 yrs). Three-dimensional motion analysis with 7 infrared cameras was performed with a sampling frequency as 200 Hz. Player`s swing motion was divided into four events: starting motion (E1), backswing (E2), impact (E3), following (E4). For all upper joints, LSG showed greater angle differences between drop and smash motions than that of SG at E3 (p<.05). For all upper joints, greater angular velocities were found in SG than that of LSG. For both groups, significantly smaller angular velocities were found in drop motion than that of smash motion (p<.05). The greater sequential angular velocities (proximal to distal) were found in SG than LSG during smash motion. Based on our findings, performing the same motion between drop and smash would be related to enhance performance at badminton competition. It is expected that these results will be useful in developing a training program for enhancing performance of badminton athletes.
자동차 유니버설 조인트용 핀치 요크 제조를 위한 단조 공정 개발
조아라(A-Ra Jo),정명식(Myeong-Sik Jeong),이상곤(Sang-Kon Lee),문영훈(Young-Hoon Moon),황선광(Sun-Kwang Hwang) 대한기계학회 2020 대한기계학회 논문집. Transactions of the KSME. C, 산업기술과 혁신 Vol.8 No.1
냉간 단조 공정은 우수한 기계적 물성치와 치수 정밀도를 확보할 수 있어 자동차를 포함한 다양한 산업 및 제품에 활용되고 있다. 하지만 공정 중 발생하는 높은 성형 하중으로 인해 금형 및 장비 수명에 악영향을 미치는 경우가 발생할 수 있어 적절한 하중 분배 및 금형 설계 등 다단 단조 공정 개발에 대한 높은 기술이 요구된다. 본 연구에서는 자동차 유니버설 조인트용 핀치 요크를 제조하기 위한 냉간 다단 단조 공정을 제안하였으며 상용 유한 요소 해석 프로그램을 통한 성형성 평가, 열박음양 제어로 금형 수명을 향상시키고자 하였다. 해석 결과를 바탕으로 다단 단조 금형을 제작하였으며 핀치 요크 시제품의 단류선 관찰, 경도 측정, 미세 조직 분석을 수행하였다. 위 결과를 통해 유니버설 조인트용 핀치 요크 제품을 결함 없이 제조할 수 있음을 확인하였으며, 금형 수명 향상을 위한 열박음양을 제안할 수 있었다. The multi-stage cold forging process should be designed to meet the mechanical property requirement and increase the die life by stress distribution control. In this study, the process was developed to manufacture a pinch yoke of automotive universal joint, and to increase the die life by shrink fit adjustment. To verify the numerical analysis results, the cold forging dies were made and the pinch yoke was fabricated. From the numerical and experimental results, proposed multi-stage cold forging process could manufacture the pinch yoke without crack initiation and might increase the die life by shrink fit control.
음악줄넘기 프로그램이 비만 지적장애 학생의 신체조성 및 협응력에 미치는 영향
조아라(Jo, Ah-Ra),김광찬(Kim, Kwang-Chang),현광석(Hyun, Kwang-Seok) 한국사회체육학회 2015 한국사회체육학회지 Vol.0 No.59
The purpose of this study is to examine the effects of a 12-week music rope-skipping program on the body composition and the physical coordination of obese students with intellectual disabilities (ID). Height, weight, and body fat were measured to examine the changes of body composition. The physical coordination was evaluated in terms of four items (backward balance, hoping on one leg, jumping sideways, and shifting plat forms) and general MQ (motor quotient) as the sum of four items. The major results were as follows: After the 12-week music rope-skipping program, there were no significant differences in heights but weights and body fat were significantly decreased (p<.05). The 12-week music rope-skipping program for obese students with mental retardation was effective in improving all the four items (backward balance, hoping on one leg, jumping sideways, shifting platforms) and general MQ for the physical coordination. These results suggest that the 12-week music rope-skipping program for obese students with mental retardation has a positive effect on the improvement not only in the body composition by decreasing weights and body fat but also in backward balance, hoping on one leg, jumping sideways, shifting platforms and general MQ for the physical coordination.
소비자 가치 및 과시적 소비성향이 공익마케팅 패션제품에 대한 태도 및 구매의도에 미치는 영향
조아라 ( Ah Ra Jo ),이윤정 ( Yoon Jung Lee ) 한국의류학회 2015 한국의류학회지 Vol.39 No.1
This study examines how consumer value and conspicuous consumption tendency influence attitudes andpurchase intention toward fashion cause-related marketing products. Survey questionnaires were distributedto 326 women in their 20``s to 50``s living in Seoul January 2012. The instruments included measurementsof consumer value, conspicuous consumption tendency, attitude toward fashion cause-related marketingproducts, intention to purchase fashion cause-related marketing products, and demographics. Factor analysis,correlations, and multiple regressions were conducted using SPSS 12.0. The results of this research are asfollows. Consumer value affected attitude toward fashion cause-related marketing products as well as intentionto purchase products. Those with a higher conspicuous consumption tendency showed a higher intentionto purchase fashion cause-related marketing products, regardless of attitude toward fashion CRM products. This indicates that and association with famous prestige brands will increase the possibility of successof cause-related marketing products. The research helps establish a marketing strategy to launch newfashion cause-related marketing products by discovering the relationships between consumer consumptionpatterns and attitudes toward fashion cause-related marketing products.