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This study is intended to research into the realities of participation of the workes employed by companies in physical activities. To do so, used are four questions about the characteristics of the subjects of the study and nine ones about the actual conditions of workers' participation in sports for all. The analyses of materials according to process lead to the following conciusions. 1) About a health condition, 4629% of the respondents(626) think themselves healthy, 40.55% doubtful and 13.16% sick. 2) It is shown that 77.23% of them take rogular or irreularl exercise, and 22.77%9146) of them do not exercise at all. 46.24% of the non-excerisers ascribes their non-exercise to lack of timo, 18.53% of them to absence of co-exercisers and the rest of them to no around-them facilities, money or especially interesting sports. 3) It is shown that 74.10% of the exerciseres 480 are engaged in physical activites mainly on behalf of health improvement 67.74% exercise with a frequency of two times a week, 21.30% three times, 13.96% over five times, 27.07% take exercisewith the duration of 40-50 minutes, 24.57% 30-40 minutes, 20.04% 20-30 minutes and 17.21% over 60 minutes. 4) Among those involved in physical activites(480), 49.73% exercise on holidays or weekends, 28.59% on every day, and 21.68% on weekdays. The expenses spent on their exercise are less than ￦50,000 for 60.64%, ￦50,000-70,000 for 26.74%, ￦70,000-100,000 for 10.76% and over ￦100,000 for 1.86%. 5) What they(480) complain about is lack of space and facilities for 33.20%, lack of continuance of exercise programs for 28.04%, formality for 24.63%, and need of a leader of sincerity for 14.13%, their participating in physical activities at work.
We design a new actuator of 3-axis motion for high performance optical devices. The actuator makes it possible to control the tilting motion by using moving magnet and PCB-coil, which have benefits in price and manufacturing. To predict the characteristics of the actuator, especially the effect of moving magnet, finite element method and electro-magnetic analysis were used. By comparing simulation data with experimental results, we verified the accuracy of the simulation and the superiority of the present.
김용영(Yong Young Kim), 고영완(Young Wan Ko), 조성채(Sung Chae Cho), 최석준(Suck Jun Choi), 윤영복(Young Bok Yoon), 김동희(Dong Hee Kim), 이하얀(Ha Yan Lee) 한국체육학회 2000 The 2000 Seoul International Sport Science Congres Vol.- No.-
The aim of this study was to investigate the influence of combined exercise(running and resistance exercise) on the leptin, resistin and ghrelin. Obese middle school girls participated in combined exercise for 10 weeks. Combined exercise performed that the running exercise was composed of 50~60% HRmax during first 5 weeks, 61~70% HRmax during 10weeks, 10~15minutes a day for 4 day a week and the resistance exercise was composed of 60% of 1RM during first 5 weeks(10 repetitions per set, 3 set), 70% of 1RM during 10weeks(10 repetitions per set, 5 set), 15~20minutes a day for 4 days a week. Statistical techniques for data analysis were two-way ANOVA repeated measures. The 0.05 level of significance was as critical level for this study. The results of this study were as following; Leptin and resistance were decreased significantly after 10weeks, respectively. Also, the level of leptin(p<.01) and resistance(p<.05) were significantly lower in combined exercise group than in control group after 10 weeks. Ghrelin was increased significantly after 10weeks. And, the level of ghrelin(p<.01) was significantly higher in combined exercise group than in control group after 10 weeks. In conclusion, the data from this study reveals that combined exercise for obese girls is an effective method to obesity control and promotion health.
이하얀 ( Ha Yan Lee ), 윤영복 ( Young Bok Yoon ), 김유섭 ( Yoo Sub Kim ), 이계윤 ( Gye Yoon Lee ), 김동희 ( Dong Hee Kim ), 김선호 ( Sun Ho Kim ), 김회원 ( Hoe Won Kim ), 신세훈 ( Se Hoon Shin ), 장선웅 ( Seon Woong Jang ) 한국운동영양학회 2007 Journal of exercise nutrition & biochemistry Vol.11 No.3
The aim of this study was to investigate the influence of endurance training in atrial natriuretic peptide & brain natriuretic peptide. For this study, 16 healthy young men were selected. Subjects participated in 12 weeks of running to four times per week for 30-40minutes. Statistical techniques for data analysis were a descriptive statistics and repeated ANOVA. The results of this study were as following; 1. Atrial natriuretic peptide was shown a case of decreasing after 6 weeks, but after 12 weeks have decreased significantly. Especially, ANP was significantly lower after 12 weeks than after both 6 weeks and 0 weeks at all the blood sampling time. 2. Brain natriuretic peptide was shown a case of decreasing after 6 weeks at all the blood sampling time, but there was no significant difference. Also, BNP was significantly lower after 12 weeks than after both 6 weeks and 0 weeks at post-maximal exercise These data suggest that endurance exercise significantly decreased ANP & BNP levels in healthy men, and the decreases could be partially attributed to cardiovascular functions.
The purpose of this study was to investigate the effect of exercise capacity, blood iron markers and erythropoietin. The subjects for this study were ninety-six weight grade women players and divided into 2 groups: Helicobacter pylori infection group(n=18), Helicobacter pylori non infection group(n=16). The effect of exercise capacity such as VO2max, peak power, mean power and blood iron marker such as RBC, Hb, Hct, iron, ferritin, TIBC and erythropoietin have been measured. Statistical techniques for data analysis were independent t-test. The 5% level of significance was utilized as the critical level for acceptance of hypotheses for the study. The following results were obtained from this study; 1. The effect of body composition and exercise capacity in according to the Helicobacter pylori infection were no significant difference between two groups before weight loss. 2. The effect of RBC was no significant difference between two groups before weight loss. But, Hb, Hct, ferritin, iron and TIBC were significantly lower in Helicobacter pylori infection group than those of Helicobacter pylori non infection group before weight loss. Also, erythropoietin was significantly higher in Helicobacter pylori infection group than those of Helicobacter pylori non infection group before weight loss.