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集族的性质及应用
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作者 周艳 陈恒新 许卫忠 《首都师范大学学报(自然科学版)》 2013年第1期1-3,共3页
本文主要研究了某些集族的滤子性、全族性和厚族性,并利用集族之间的关系讨论了某些动力系统之间的弱不连结性.
关键词 虑子 厚族 弱不连结
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The variation of skinfold thickness of Mulam adults in China 被引量:16
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作者 DING Bo ZHENG Lian-bin +3 位作者 LU Shun-hua LIANG Ming-kang JIANG Kui SU Qu-yun 《Journal of Life Sciences》 2007年第1期55-59,共5页
The skinfold thickness of six items (facial skinfold, subscapular skinfold, suprailiac skinfold, biceps skinfold, triceps skinfold and calf skinfold) were measured in 465 Mulam adults (232 male and 233 female). Th... The skinfold thickness of six items (facial skinfold, subscapular skinfold, suprailiac skinfold, biceps skinfold, triceps skinfold and calf skinfold) were measured in 465 Mulam adults (232 male and 233 female). The results were as follows: (1) The average skinfold thickness are higher in female at every age group. (2) As a whole, the skinfold thickness in the body of trunk is bigger than that in the limbs in both male and female. The curves of biceps skinfold thickness and calf skinfold thickness of male doesn't fluctuate with age. Body fat percentage of male was the lowest in the 30s group. In female, the skinfold thickness of trunk and triceps increase with age while calf skinfold decreases. Body fat percentage of female increases with age but then decreases after 50 years old. (3) The mean vales of Mulam skinfold thickness are relatively low compared with Daur, Uzbek and Han nationality. 展开更多
关键词 skinfold thickness body fat percentage Mulam
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