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利用光纤光栅实现压力和温度同时测量 总被引:5,自引:0,他引:5
结合光纤光栅弹簧管压力传感器的结构特点 ,在悬臂梁的上下两面分别粘贴两个应力和温度灵敏系数基本相同的光纤光栅 ,通过分别测量光纤光栅对的波长位移 ,实现了压力和温度的同时测量 ,压力和温度测量的分辨率分别为 0 .1 4 MPa和 0 .5℃ . 相似文献
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Bradfield JP Taal HR Timpson NJ Scherag A Lecoeur C Warrington NM Hypponen E Holst C Valcarcel B Thiering E Salem RM Schumacher FR Cousminer DL Sleiman PM Zhao J Berkowitz RI Vimaleswaran KS Jarick I Pennell CE Evans DM St Pourcain B Berry DJ Mook-Kanamori DO Hofman A Rivadeneira F Uitterlinden AG van Duijn CM van der Valk RJ de Jongste JC Postma DS Boomsma DI Gauderman WJ Hassanein MT Lindgren CM Mägi R Boreham CA Neville CE Moreno LA Elliott P Pouta A Hartikainen AL Li M Raitakari O 《Nature genetics》2012,44(5):526-531
Multiple genetic variants have been associated with adult obesity and a few with severe obesity in childhood; however, less progress has been made in establishing genetic influences on common early-onset obesity. We performed a North American, Australian and European collaborative meta-analysis of 14 studies consisting of 5,530 cases (≥95th percentile of body mass index (BMI)) and 8,318 controls (<50th percentile of BMI) of European ancestry. Taking forward the eight newly discovered signals yielding association with P < 5 × 10(-6) in nine independent data sets (2,818 cases and 4,083 controls), we observed two loci that yielded genome-wide significant combined P values near OLFM4 at 13q14 (rs9568856; P = 1.82 × 10(-9); odds ratio (OR) = 1.22) and within HOXB5 at 17q21 (rs9299; P = 3.54 × 10(-9); OR = 1.14). Both loci continued to show association when two extreme childhood obesity cohorts were included (2,214 cases and 2,674 controls). These two loci also yielded directionally consistent associations in a previous meta-analysis of adult BMI(1). 相似文献
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