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태권도의 운동상해에 관한 조사 연구 : 대학선수들을 중심으로
조명환,이종희,장완성 경희대학교 체육대학 한국체육과학연구소 2002 體育學論文集 Vol.30 No.-
Taekwondo is one of the most popular sports in korea and new olympic regulation match and a contact sport associated with a large number of injuries. In the present study, taekwondo athletes injuries during training and competitions was investigated via questionnaire. Taekwondo athletes in the universities of Seoul and the metropolitan area in Korea were observed prospectively for one year for acute injuries during training and competitions (n=428). The most time of injuries occurrence are during main exercise and practice. The most injuries occurred by attack or return kick. Contusion(23.4%) and myalgia(23.4%) were the most common type of injuries and the lower extremity was the most commonly injured area(50.6%). The defense type athletes get injured more then the offensive type athletes and they were more injured during return kick and defense than offensive. In men athletes, who has more careers are more get injuries and in women athletes, who has more practice times in everyday are more get injured. The most of ankle(94.6%) and toe(89.6%) injuries were occurred in men athletes. Base on the results of present study, it is suggested that using the protectors and more aggressive attitude are suggestions to reduce injuries.
차량속도에 따른 연성 포장의 최대인장변형률에 관한 연구
조명환,김낙석,최호근,서영국,Jo,Myoung-Hwan,Kim,Nak-Seok,Choi,Ho-Geun,Seo,Young-Guk 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
This study presents a viscoelastic characterization of flexible pavement subjected to moving loads. A series of field tests have been conducted on three pavement sections (A2, A5, and A8) at the Korea Expressway Corporation (KEC) test road. The effect of vehicle speed on the responses of each test section was investigated at three speeds: 25km/hr, 50km/hr, and 80km/hr. During the test, both longitudinal and lateral strains were measured at the bottom of asphalt layers and in-situ measurements were compared with the results of finite element (FE) analyses. A commercial FE package was used to model each test section and a step loading approximation has been adopted to simulate the effect a moving vehicle. Field responses reveal the strain anisotropy (i.e., discrepancy between longitudinal and lateral strains) and the amplitude of strain normally decreases as the vehicle speed increases. In most cases, lateral strain was smaller than the longitudinal strain, and strain reduction was more significant in lateral direction.
서어비스製品 購買行動에 있어서 消費者 關與에 관한 實證的 考察
曺明煥 新羅大學校 1987 論文集 Vol.22 No.-
The motivation for the study of the involvement has consisted in more precise prediction of consumers' behavior through the observance of people's attitude formation and attitude change. The variable of involvement it self, as an independent variable, has demonstrated a higher forecasting potential than any other variables, which has made the significance of the study greater. The study on the involvement started 1940s in social psychology and since mid-1960s has also been treated in the area of marketing in terms of consumer behavior. However, the concept of involvement has been defined in a number of ways without a generally-accepted one, and some definite effects the involvement is conceived to exert have not been founded yet. Thus, such facts being taken into account, theoretical study and an empirical research have been done in this paper as an approach to better understanding of the iovolvement. When being categorized into goods and services, five items of each segment have been selected and employed in the research: perfume, detergent, jeans, music album, and facial tissue in the goods and travel, drycleaning, watching of sports game, eating away from home and beauty in services. As a result of the research, three among four hypotheses established; that is 1) more psychologically oriented services than goods. 2) stronger brand loyalty to the services, and 3) more variety of brand attributions of the services, have been accepted, whereas the hypothesis of higher degree of store information, information sought, and trial purchase, has been rejected. Accordingly, some aspects which marketers of service ?? to consideration in establishing strategies of marketing a number of different sorts of the services are as follows: 1) focus consumers' psychological aspect in advertising; 2) acceleration of the product innovation to provide current customers with a variety of the services. The limits I agree in relation to the empirical research are somewhat unsuitableness to be found in the process of selecting perfume and watching of sports game in the services, and low credibility due to the only ANOVA and FREOUENCIES employed in the demonstrating methods. Nevertheless, this paper purposits to make some contribution to the establishment of more rational marketing strategy in service sector, with the improvement of above mentioned limits.