2篇
您的检索式：作者名="QI Pengjia"
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| 1 | Studies on QCM-type NO2 Gas Sensor Based on Graphene Composites at Room Temperature显示文摘Synthetic graphene composite was modified on a transducer of quartz crystal microbalance(QCM) tofabricate a gas sensor for low concentration nitrogen dioxide(NO2) detection. The gas sensing properties of the QCMcoated with SnO2-rGO and AgNPs-SnO2-rGO composites were investigated when exposing QCM to low NO2 con-centration(2.05--20.5 mg/m3) atmosphere at room temperature. The sensing performances of ,he QCM withAgNPs-SnO2-rGO composites were enhanced by the introduction of Ag nanoparticles, and the QCM modified withAgNPs-SnO2-rGO composites could detect NO2 at room temperature. | QI Pengjia WANG Ziying WANG Rui XU Yinan ZHANG Tong | 2016 | Chemical Research in Chinese Universities2016，32，6： | 2 |
| 2 | Study on the Complete Mitochondrial Genome of Qaidam Cattle(Bos taurus)显示文摘Qaidam cattle(Bos taurus) is an important endemic breed in Northwest China, which is mainly distributed in the northwest of Qinghai-Tibet Plateau. It has strong adaptive ability to plateau and swamp conditions, such as cold tolerance and insect resistance. In this study, the first complete mitochondrial genome of Qaidam cattle was reported. The circular double-stranded genome is 16 340 bp in size, and contains 13 protein-coding genes, 22 transfer RNA genes, two ribosomal RNA genes, and a D-loop region. The overall nucleotide composition is 33.4% A, 27.2% T, 26.0% C and 13.4% G, with a total A +T content of60.6%. The gene order and composition are similar to those of other B. taurus breeds. Molecular phylogenetic analysis indicated that Qaidam cattle was split as an independent clade and nested within Asian cattle breeds. | xian guo lin xiong jianbin liu shirong qi zhaxi zhuoma gabu zengcuo jie pei pengjia bao ping yan xuezhi ding | 2017 | Agricultural Science & Technology2017，18，12： | 0 |
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