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DVD-RAM 기판의 복굴절, Radial-Tilt 및 전사성 향상을 위한 사출압축성형공정 최적화
강신일,성기병,이남석,Gang, Sin-Il,Seong, Gi-Byeong,Lee, Nam-Seok 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.4
The objective of this study is to provide a simple methodology to find optimum processing conditions to fabricate sub-micron structured DVD-RAM substrates with superb optical and geometrical properties. It was fecund that the birefringence, which is regarded as one of the most important optical properties for an optical disk, was very sensitive to the mold wall temperature history. Also, the integrity of the replication, represented by the land-groove structure and the radial tilt were influenced by the mold temperature and the compression pressure. A set of optimum conditions were obtained by applying Design of Experiment and the objective functions composed of three different objectives.
女子中學校 體操選手의 Cal 攝取가 發育과 運動 및 體力에 미치는 影響
姜信一 건국대학교 1990 論文集 Vol.30 No.1
From february 20th, 1988 to May 10th 1989, I examined into the caloric intuke, living contents phsicail strenght, physique subcutaneous fat and capacity of exercise in 56 girl middle school gymnasts representing their cities. Especially, correlations of physique, physical strength and subcutaneous fat with power of exercise were af followings. A. The twirl gymnast's average age was about 14.4 years old and have exercised for about 5.2 years. B. When exercising, they took about 1933, 1 Kcal a day but when participating in games, they took 1,500 Kcal a day C. The average height was 148.8cm and the tallest ones were I-ree girl middle school gymnasts and their heights averaged 151.4 Centimeters. The weight averaged 38.1 Kilograms. The highest figures in weigh, the circumference of chest, and sitting height were 39.9 Kilograms, 76.0 Centimeter, 83.0 Centimeters respectively and all these highest figures were applied to I-ree girl middle school gymnast's. D. Subcutaneous fat averaged 12.55mm and the maximum subcutaneous fat was 16.4mm in Chun Cheon girl middle school gymnast's. In the case of muscular strongest ones were Chun -Cheon girl middle shcool gymnast's and their record was 37.6kg in total. In the case of long-hanging, Soo-yu girl middle school gymnast's recorede 43.4 seconds, in Buppe test, Won - Wha twirl middle school gymnast's 8.4 times, in forward flexibility, I-ree girl middle school gymnasts recorded 27.2 Centimeters, and backward flexibility, Won Wha girl middle school gymnasts recorder 64.3 Centimeters and each record represented the highest bevel. E. In vertical jump, Soo-yu girl middle school gymnasts recorded 45.8 Centimeters, in long broad jump, Chun-Cheon girl middle school gymnasts recorded 433.8 Centimeters. Each record was the highest level. In kinetic balance test, Chun-Cheon girl middle school gymnasts showed hight stability. In still balance test, Soo-yu girl middle school gymnasts showed stable balance. F. There were reliable or high correlationship between energy and hight, energy and weight as the carolic intake increased but there were no correlationships between energy and endurance power, energy and balance and energy and vertical jump. The conculsions above were based on gymnast's the 10 day carolie intakes when exercising and the 5 day carolie intakes when participating in games.
男子 高等學校 洋弓選手들의 競爭狀態 不安이 記錄에 미치는 影響
강신일,이민영 公州大學校스포츠科學硏究所 2000 스포츠科學硏究所論文集 Vol.- No.14
The purpose of this study is to investigate the effect of Competitive State Anxiety upon the archery performance scores. The subjects of study were 32 high school women archery tournaments that was held in 1999. They responded to the Competitive State Anxiety Inventory-2(Martens et al., 1990). The testing occasions occurred 30 minutes prior to competition. The correlations were investigate between cognitive anxiety level, physical anxiety level, and self-confidence and archery performance scores. The effect of Competitive State Anxiety upon the archery performance scores were compared between sub-constructs and between the levels of the groups, The obtained results were as follow; 1. The statistically significant difference among cognitive anxiety variables existed between games in girl's high archery players. 2. the statistically significant difference among somatic maiety variables existed between games in girl's high school archery players. 3. The statistically significant difference among sport confidence variables did net existed between games in girl's high school archery players. 4. There was a high correlation between competitive state anxiety and archery performance scores in girl's high school archery players.