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권중호(Jung Ho Kwon),신용석(Yong Seok Shin) 한국여성체육학회 1999 한국여성체육학회지 Vol.13 No.2
This study w-as analyzed top four players in the result of `98 Bangkok. Asian Gamc and present the date of skills and factors whih were important in winning game. 1. $quot;Ihe frequency of winning and losing points w-as Ground Stroke, Passing Shot, Volley, Service Return, Approach Shot etc., and Net Code Ball that was the lowest. 2. The winning points was 37.7% that was different from the average(2.4) of `99 Grarul Slam final match. In order to types of skill, The highest points was in Volley arrd Passing Shot, (round Stroke, Approach Shot orderly. 3. The losing points was 62.7010. that was different from the average(41.117) of `99 Grand Slam final match. In order to types of skill. The highest points was in Ground Stroke and Passing Shot, Service Return, Volley, Approach Shot orderly. 4. The points of Service Ace and Return bliss were 38.661o that show ed Service Points highly. The winning game was composed of service game(73.52/0) and return game(12.Ei-1cl-). `I`he success of First Service was 36.11o that was lower than that of First Service was 58.88rr. 5. In order to types of skill, The points w-as in Passing Shot, Service Return, Volley. The back-hand of Approach Shot was more frequent errors than fore-hand of .Approach Shot. $quot;I`he Passing Shot and Service Return were more frequent errors in the case of cmt, and the volley and Approach Shot ,vere than more frequent errors in the case of net. The fore-hand of ground stroke was the most frequent out.
감마선 및 Methyl Bromide 처리가 배 과실의 검역해충과 품질에 미치는 영향
권중호(Joong-Ho Kwon),강호진(Ho-Jin Kang),조덕조(Deokjo Jo),정헌식(Hun-Sik Chung),권용정(Yong-Jung Kwon),변명우(Myung-Woo Byun),최성진(Seong-Jin Choi),최종욱(Jong-Uck Choi) 한국식품영양과학회 2002 한국식품영양과학회지 Vol.31 No.1
배(Pyrus pyrifolia cv. Niitaka) 과실의 검역해충 사멸을 위하여 methyl bromide (MeBr) 훈증의 대체방안을 연구할 목적으로 감마선 조사의 적용가능성을 검토하였다. 배 과실에서 검역대상 해충으로 점박이응애(Tetranychus urticae Koch)와 사과응애(Panonychus ulmi Koch)가 동정되었다. 이들 해충들은 MeBr 훈증에 의해 처리 1일 후 완전 박멸되었으나, 감마선 처리에 의해서는 지효성을 보이면서 조사선량에 비례하여 사충률이 증가되었다. 과실의 호흡량은 조사선량의 증가와 MeBr 훈증에 의해 증가되었다. 과실의 과피 흑변과 과심 장해는 MeBr 처리에 의해 크게 촉진되었으며, 감마선 처리에서도 선량에 비례하여 촉진되었다. 과육경도와 표면색도는 MeBr의 영향 보다는 2 kGy 이상의 감마선 조사에 의해 과육의 연화와 표면색도의 변화가 나타났다. 적정산도는 3 kGy 조사에 의해 다소 낮았으며, 아세트알데히드 함량은 처리조건의 영향을 받지 않았으나, 에탄올 함량은 3kGy 조사에 의해 증가되었다. 관능적 품질특성은 1 kGy 이상의 감마선 조사에 의해 유의적으로 저하되었다. As an alternative to methyl bromide (MeBr) fumigation for the control of quarantine pests of pears (Pyrus pyrifolia cv. Niitaka), the effect of gamma irradiation (0.5~3 kGy) was comparatively investigated. Insects found in the pears were identified Tetranychus urticae Koch and Panonychus ulmi Koch, which were of quarantine importance. These insects were easily destroyed by MeBr even one day after fumigation. Whereas irradiation at 0.5~2 kGy was not enough to reach the mortality, even if 3 kGy showed the same mortality as MeBr after 17 days of treatment. Respiration of pears was stimulated by both increased doses of irradiation and MeBr fumigation. The rates of surface blackening and core browning were accelerated by MeBr rather than higher doses of irradiation. While the changes in flesh firmness and surface color were more apparent in irradiated samples at above 2 kGy than MeBr. There were negligible differences in the contents of titratable acidity, acetaldehyde and ethanol by the treatment conditions except for 3 kGy-irradiated group. Sensory evaluation showed that more than 1 kGy was the threshold to induce the significant changes in quality of pears.
중년 여성의 비만도에 따른 생활습관 및 건강관련체력 비교
정희정(Hee Jung Jung),차정훈(Jung Hoon Cha),권중호(Jung Ho Kwon) 한국발육발달학회 2009 한국발육발달학회지 Vol.17 No.2
The purpose of this study was to compare daily behavior and health-related fitness in middle-aged women according to BMI, and then we intended to provide a guideline for health and controlling obesity of middle-aged women. The subjects(n=1131) of this study were classified into 4 groups(underweight, normal weight, overweight, and obese) by their BMI. We examined the difference of daily behaviors(eating vegetables and meat, drinking, smoking, sleeping, life satisfaction), health-related fitness(cardiorespiratory fitness, flexibility, muscle strength, and muscle endurance), and subjective health perception. Data was collected from the structured questionnaire of daily behavior and the measurement of health-related fitness. Collected data was analyzed by SPSS program including descriptive statistics, Kruskal-Wallis ANOVA, one-way ANOVA. A statistical significance was accepted at the level of p<.05. The results of this study were as follows; First, Subjective health perception was not different significantly among groups. Second, Taking vegetable, smoking and life satisfaction of daily behavior were statistically significant different according to BMI. By contrast taking meat, alcohol, and sleeping were not different significantly among groups. Third, Muscle strength and muscle endurance of health-related fitness were significantly different according to BMI. By contrast cardiorespiratory fitness and flexibility were not different significantly among groups. In conclusion, moderate control of body fat, desirable daily behavior and fitness are important to middle-aged women`s physical and mental health. However it is necessary to develop detailed supportive program for health promotion of middle-aged women.