• Asian Journal of Turfgrass Science
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• 제16권2호
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• pp.65-73
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• 2002

Studies were conducted to determine the effect of undersoil heating on growth and quality of turfgrasses including Kentucky bluegrass (Poa pratensis L.‘Nuglade’), perennial ryegrass (Lolium perenne L.‘Accent’), tall fescue (Festuca arundinacea Schreb.‘Pixie’), and Korean lawngrass (Zoysia japonica Steud.) in simulated athletic field during winter season in Korea. Mineral contents in clippings of turfgrasses grown at different soil mixtures and temperatures were also analyzed. Undersoil heating (approximately 20$\pm$2$^{\circ}C$) was effective in protecting turfgrasses except Korean lawngrass from freezing injury and discoloration of shoots due to extremely cold temperatures during midwinter. Among turfgrasses grown at undersoil heating zone, tall fescue and perennial ryegrass showed the highest clipping weights and chlorophyll contents, respectively. However, anthocyanin contents of shoots were higher in Kentucky bluegrass. There was little or no difference in clipping weights, chlorophyll contents, anthocyanin contents and greenness of shoots between turfgrasses grown at two soil mixtures composed of 80% sand＋10% peat moss＋10% soil (v/v/v) and 80% sand＋20% pea moss (v/v). Contents of mineral K, Ca and Mg in clippings of cool-season turfgrasses were comparatively higher in a soil mixture composed of 80% sand＋10% peat moss＋10% soil, but little difference in contents of N and P was observed between two soil treatments. Results indicated that undersoil heating can improve quality of turf surface by thawing soil, melting snow, and maintaining shoot growth and greenness of turfgrasses in sports field during winter season.

• Journal of Korean Orthopaedic Sports Medicine
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• 제10권2호
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• pp.94-99
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• 2011

Purpose: As the number of people enjoying skiing and snowboarding which are two popular winter sports has been increasing, wearing helmet during doing these sports has been needed for safety. The rates of head or face injury have decreased after using helmet. However the effect that wearing helmet has on cervical damage is not yet to be known. So through this research we intend to be helpful in developing effective program and safety equipment. Materials and Methods: During two seasons from December 2009 to march 2011, cased 658 cervical injuries within 14538 admittance in medical center of major resort due to skiing and snow-boarding injuries. For survey and research model, one year before the research year conducted a pilot study. Admittance were 432 male and 226 female, advanced 273 and 385 novice. We divided them into two groups depending on wearing helmet, measured cervical damage ratio and injury mechanism, and researched the severity of damage and diagnosed injury. Each group used SPSS 12.0 (SPSS Inc., Chicago, IL, USA) to process data statistically. Results: The number of patients was 312 in skier and 346 in snow boarder. Patients wearing helmet were 146 in skier and 127 in snow boarder. Classification of each injuries were confirmed as 292 cases of simple sprain, 359 bruising, 6 cervical fractures and 1 case of dislocation. Classification of injury mechanisms were 287 of human collision, 212 material collision, 108 of slip down by oneself, 39 of falling and 12 cases of etc. In cases wearing helmet ski 78/ snow board 70 were simple sprain, ski 64/ snowboard 68 were shown as bruising, ski 1/ snow board 2 had cervical fracture or dislocation. The ratio of cervical sprain increased in cases of wearing helmet compared to non-wearing cases and there was a statistical significance (p<0.001). The ratio of cervical contusion increased significantly in non-wearing helmet user (p<0.05). However, there was no significant increase in fracture and dislocation compared between helmet user and non-user (p> 0.05). Conclusion: In this study, wearing helmet had no relation to additional cervical injury occurrence or severity among skiers and snow boarders. The ratio of cervical sprain increased significantly in helmet user with person to person accident. However, the cervical contusion decreased. On this ground, further biomechanical studies are required and modified helmet will be necessary.

• Journal of Fashion Business
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• 제12권2호
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• pp.59-71
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• 2008

The purpose of this thesis is to analyse the style, color, and items of '06-07 F/W women's street fashion in Dalian. The cultural, racial and geographical uniqueness, asks for the analysis, based on the individual local area on the part of Korean fashion company desiring to launch into China fashion market. I would contribute to the understanding the preference of fashion in northeastern area, thereby, affording a fundamental resources for designing strategies for Korean fashion brands in China. The period of investigation is about 15 weeks from 23 Sep. 2006 until 6 Jan. 2007, with combined use of camcorder and digital camera. The site was Victory Shopping Plaza, in center of City, also with Mycal, Ansung, Dasang department store situated in the Economic Development Zone. Finally, 900 photos were selected for analysing. The result of this study are as follows: 1. Preferred clothing styles are jean casual 45.4%(409), sports casual 16.3%(147), character casual 8%(72), feminine 20.6%(185), Classic 9.7%(87). Compare to the former study about Spring, Sports casual showed dominant rate about 36.0% in casual style. In Winter, however, the preference were changed from sport casual to jean casual. 2. Preferred clothing items are parka/padding coat 32.3%(291), jumper 31%(279), T-shirts 16%(144) and jacket 7.5%(67) for tops, pants 91.8%(826) and skirts 8.2%(74) for bottoms. In the pants, straight pants 78.4%(648), bell bottom pants 10.9%(90), capri pants 7.4%(61), cargo pants 2.9%(24), bermuda pants 0.4%(3) were listed respectively. In the skirts, A-line skirt 51.3%(38), pleats skirt 25.7%(19), flare skirt 12.2%(9), semi-tight skirt 8.1%(6), tight skirt 2.7%(2) were listed. Finally the skirt length midi 75.7%(56), mini 18.9%(14) and maxi 5.4%(4) were listed. 3. Preferred colors are red 21.8%(196), white 21.6%(194), black 16.4%(148), yellow 10.0%(90), beige 9.3%(84), green 7.9(71) and blue 6.3%(57) for tops, and black 40.8%(367), blue 37.7%(339), gray 4.6%(41), white 4.3%(39) etc. for bottoms.

• Journal of the Korean Institute of Traditional Landscape Architecture
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• 제33권4호
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• pp.65-76
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• 2015

The purpose of this study is to determine the evaluation of affected visual landscape of Taereung National Training Center to Taereung and Gangneung UNESCO World heritages, South Korea. For this research, it used to offer the affected visual landscape rate and 3D simulation with Sketch up 8.0. This study conducted over 4 steps. Step 1, view points are selected with literature review and interview. Step 2, with Sketch up created 3D modelling and calculated the affected rate on the landscape. Step 3 individual buildings were mapped with the affected rate. Lastly, step 4 were identified the results through field research. From this results, the visual landscape of Taereung and Gangneung that are damaged by the Taereung National Training Center did not appear higher than initially expected. The entrance area on Gangneung, however, where is affected from Oryungwan, Korea Sports Institute, Philseung Gym needs to establish a way to improve that landscape impact. In case of Taereung, it did not appear damaged due to the hiding effect of the forest. By field survey to confirm those results, it shows seasonal differences. In the case of the summer and autumn derive similar results with 3D simulation but were exposed buildings in the winter and spring. It means when the simulation based on the summer and fall operates, it may not reflect the affected landscape of certain times such as winter and spring. This study has significance as a basic research to co-exist between the traditional heritage and modern heritage.

• Journal of Trauma and Injury
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• 제19권2호
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• pp.188-191
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• 2006

Tricuspid regurgitation after blunt chest trauma is rarely seen in the emergency department. A 19-year-old patient visited our emergency department with chest discomfort after collision with his brother while skiing. Recently, Skiing as a winter sports has become popular with the Korean people, so there is an increasing tendency for patients with diverse traumas associated with ski accidents to visit the emergency department. From simple abrasions or contusions to deadly injuries with unstable vital signs, we are seeing many kind of injuries in the emergency department. We present the case report of a patient with tricuspid regurgitation after a blunt chest trauma during the skiing.

• Journal of the Korean Geographical Society
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• 제43권3호
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• pp.312-323
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• 2008

The purpose of this paper is to analyze thermal sensation which is measured by human physioclimatic reactions in South Korea. Relationships between Temperature-Humidity Index(THI) and human thermal sensation scale are derived from a questionnaire, which investigates degree of volunteer's thermal sensation with respect to each biometeorological condition. Analyses of these empirical relationships make it possible to calculate thermal sensational indices and to classify bioclimatic types for individual weather stations based on long-term(1971-2000) averages of monthly temperature and humidity data. A generalized annual physioclimatic maps for each Annual Cumulative Thermal Sensation Index for the 68 stations are constructed to show men tend to feel in various areas. The Monthly thermal sensations are affected by latitude, altitude, orographic effects and systems of airmasses. The Annual Cumulative Thermal sensations are increasing towards northern areas and inland, and that the major factors are largely derived from cold stress in winter. The Annual Physioclimatic Types are grouped 8 climatic types(M, ES, M-ES, M-S, W-ES, C-ES, C-M, C-M-ES) according to climatic stress. Results of this study can be applied for evaluation of thermal environment in our daily activities, and for searching relevant sports training-sites, climatherapy etc.

• The Korean Journal of Community Living Science
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• 제19권2호
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• pp.297-308
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• 2008

Previous research on elderly care in rural areas has focused on inter-generational support, ignoring the possibility of elderly care among community members in the rural areas of Korea. This study attempts to explore the roles and potentials of community-based elderly care in rural areas where nearby family or formal services are unavailable. For this purpose, data was collected from the elderly in three Korean rural villages using qualitative case study methods. Each village was studied as a separate case study and in-depth interviews with the elderly in each village were conducted. All interviews were tape-recorded and transcribed verbatim for the analysis. The data was analyzed using the Reflective Qualitative Analytic Technique. Results showed that rural elderly in all three villages had lunch, talked, and played together; almost everyday in the winter. However, the nature of care among rural elderly varied depending on the characteristics of the rural community (the traditional rural, the rural mixed with the urban, and the neighboring rural with the urban). Specifically, the use of mutual aids (providing food, repairing housing, and checking personal safety by telephone or visit, etc.) was most consistent at the traditional rural village. Because both the rural village mixed with the urban and the neighboring rural village with urban have better access to many aids and programs from formal institutions, mutual aids among community members decreased compared with the traditional rural village. However, regular group activities such as sports, dancing or debate help to provide pleasure and integrate the community. These results suggest that community relationships as a substitution for social support provide by family or formal services can be utilized in rural areas.

• Korean Journal of Applied Biomechanics
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• 제30권1호
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• pp.17-25
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• 2020

Objective: The purpose of this study is to provide a better understanding of long turn mechanism by describing long turns after kinematic analysis and provide skiers and winter sports instructors with data through which they are able to analyze right postures for turns in skiing in a systematic, rational and scientific manner. Method: For this, a mean difference of kinematic variables (the center of gravity (CG) displacement of distance, trajectory, velocity, angle) was verified against a total of 12 skiers (skilled and unskilled, 6 persons each), regarding motions from the up-start to down-end points for long turns. Results: First, concerning the horizontal displacement of CG during a turn in skiing, skilled skiers were positioned on the right side at the upstart and edge-change points at a long turn. There was no difference in anteroposterior and vertical displacements. Second, in terms of CG-trajectory differences, skilled skiers revealed a significant difference during a long turn. Third, regarding skiing velocity, skilled skiers were fast at the edge-change and maximum inclination points in long turns. Fourth, there was no difference in a hip joint in terms of a lower limb joint angle. In a knee joint, a large angle was found at the up-start point among skilled skiers when they made a long turn. Conclusion: In overall, when skilled and unskilled skiers were compared, to make a good turn, it is required to turn according to the radius of turn by reducing weight, concerning the CG displacement. Regarding the CG-trajectory differences, the edge angle should be adjusted via proper inclination angulation. In addition, a skier should be more leaned toward the inside of a turn when they make a long turn. In terms of skiing velocity, it is needed to reduce friction on snow through the edging and pivoting of the radius or turn according to curvature and controlling ski pressure. Regarding a lower limb joint angle, it is important to make an up move by increasing ankle and knee angles instead of keeping the upper body straight during an up motion.

• Journal of Family Resource Management and Policy Review
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• 제10권1호
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• pp.53-66
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• 2006

This study was designed to get basic informations for the purpose of making healthy leisure environment of college students, and which will improve the satisfaction of their school life. Five hundreds of college students in Daegu and Gyeongbuk area were questioned by, our questionnaire during April, 2005. The data of 405 students (165 men, 240 women) Were analyzed by SPSS WIN 12.0 program. The data of 210 were from Daegu and 195 were from Gyeongbuk area, The results are as follows, First, $80\%$ of those questioned spend their leisure time doing some activities and the satisfaction degree was medium... They get the informations about leisure mainly through internet and the purpose of their leisure activities, were, to get rid of stress. Second; It was shown that their main leisure activities were doing internet, meeting friends, and listening music on weekdays, meeting friends, watching movie and doing internet on weekend. The major activities of the students during vocation were meeting friends, doing internet, and watching TV. Third, the students are concern about their leisure life, and they think that leisure life make improve the quality of life. The last, there is a correlation between quite activities such as watching TV, and dynamic activities such as a mountain-climbing leisure life satisfaction on weekdays. On weekend, however, there is a correlation between dynamic activities such as sports and the leisure life satisfaction. Moreover, on summer (winter) break personal activities such as religious activities and the leisure satisfaction.

• Journal of the Korean Data and Information Science Society
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• 제24권3호
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• pp.505-513
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• 2013

Basketball is one of the most popular winter sports in Korea. Korean basketball league has started in 1997 with 8 teams. Currently, there are 10 teams participating in it and the average number of spectators in 2010~2011 season reached 3,815. However, it has not been making good profit. It would be meaningful to analyze and evaluate the operational efficiency in order to provide basic information to improve the efficiency. This study used data envelopment analysis to figure out comparative efficiency of the teams in the Korean basketball league. As a result, Jeonjaland, LG, and KT were evaluated to be efficient teams and Orions, Ginseng, and Mobis were not.