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6篇 您的检索式:作者名="HU Zhenqing"
    题名 作者 年代 出处 被引量
1Single bend PDM control hole deviation mechanical behavior analysis and application显示文摘YIN Hu LI Qian SONG Zhenqing 2004Natural Gas Industry2004,24,6:1
2Geochemical exploration in thiek tran spoted overburden, Eastern China显示文摘JIN Jun HU Zhenqing SUN Xianqli 1989Journal of Geochemical Exploration1989,33,:1
3Adaptive Clustering Algorithm for Community Detection in Complex Networks显示文摘Ye Zhenqing Hu Songnian Yu Jun 0,,04:1
4Effects and its possible mechanism of Radix Saposhnikoviae on rat colonic smooth muscle in vitro显示文摘Objective:To determine the effect of different concentrations of Radix Saposhnikoviae(RS) on the contraction of smooth muscle strips and the Ca2+ mobilization of cultured smooth muscle cells of rat colon and its possible mechanism of action.Methods:Strips of rat colon longitudinal muscle were prepared and smooth muscle cells from rat colon were isolated and cultured.In the experiments,in vitro muscle strips were suspended in an organ bath and the contraction of the strips was recorded.In the cell-experiments,intracellular Ca2+ was assessed using fluorescent intensity(FI) of smooth muscle cells loaded with Fluo-4/AM,measured with a laser scanning confocal microscope and related software.Results:In the in vitro experiment,RS(0.02,0.2,2,20 g/L) inhibited contraction of muscle strips in a concentration-dependent manner,and this inhibition was significant for the three higher RS concentrations(P < 0.01) for both Peak(the maximal contraction amplitude) and Area(the area under curves).Similarly,RS inhibited Ach-induced contraction.In these experiments the inhibition of the Peak values in the RS 2 and 20 g/L groups was significant(P < 0.01),as was the inhibition of the Area values in all RS groups(P < 0.05).Naloxone and propranolol did not significantly affect the inhibitory effect of RS on smooth muscle contractility,while phentolamine significantly reduced the inhibitory effect(P < 0.01).In experiments using primary smooth muscle cell cultures in Ca2+-containing buffer,the post-treatment fluorescence of cells in the RS 0.2,2 and 20 g/L groups differed significantly from pre-treatment values(P < 0.05),and the percent inhibition of fluorescence in the RS 2 g/L and 20 g/L groups was significant(P < 0.01).However,in Ca2+-free buffer,FS had no significant effect on cell fluorescence.Conclusion:RS inhibited both the spontaneous and Ach-stimulated contraction of rat colonic smooth muscle strips.This RS effect appeared to involve α-adrenoceptors,but not β-adrenoceptors or opioid receptors.In cultured primary smooth muscle cells,RS reduced the mobilization of Ca2+ from extracellular sources,but may had no effect on the release of Ca2+ from sarcoplasmic reticulum and endoplasmic reticulum.Zhenqing Liu Tao Lü Ping Hu Muxin Wei 2009Journal of Nanjing Medical University2009,23,5:0
5High-Performance Sb-Doped GeTe Thermoelectric Thin Film and Device显示文摘GeTe-based materials have attracted significant attention as high-efficiency thermoelectric materials for mid-temperature applications.However,GeTe thin-film materials with thermoelectric performances comparable to that of their bulk counterparts have not yet been reported,because of their unsatisfactory electrical and thermal properties caused by their poor crystal quality and high carrier concentration.Herein,a series of Sb-doped GeTe films and devices with remarkable thermoelectric performances are presented.These films are prepared through magnetron sputtering deposition at 553 K and exhibit a unique microstructure that consists of coarse-and fine-sized grains with high crystallization quality.The fine grains enhance the scattering associated with phonon transport and the coarse grains provide electron transport channels,which can suppress the thermal conductivity without obviously sacrificing the electrical conductivity.Moreover,Sb doping can effectively optimize the carrier concentration and increase the carrier effective mass,while introducing point defects and stacking faults to further scatter the phonon transport and decrease the thermal conductivity.Consequently,a peak power factor of 22.37μW cm−1 K−2 is obtained at 703 K and a maximum thermoelectric figure of merit of 1.53 is achieved at 673 K,which are substantially larger than the values reported in the existing literature.A flexible thermoelectric generator is designed and fabricated using Sb-doped GeTe films deposited on polyimide and achieves a maximum output power density of 2.22×103 W m−2 for a temperature difference of 300 K.Zhenqing Hu Hailong Yu Juan He Yijun Ran Hao Zeng Yang Zhao Zhi Yu Kaiping Tai 2023Acta Metallurgica Sinica(English Letters)2023,36,10:0
6Genome-wide analysis of soybean DnaJA-family genes and functional characterization of GmDnaJA6 responses to saline and alkaline stress显示文摘Plant Dna JA proteins act as molecular chaperones in response to environmental stressors.The purpose of this study was to characterize the function and regulatory mechanisms of Dna JA genes in soybean.Gene expression profiles in various soybean tissues at various stages of development indicated that Gm Dna JAs function in the coordination of stress and plant hormone responses.Gm Dna JA6 was identified as a candidate regulator of saline and alkaline stress resistance and Gm Dna JA6 overexpression lines showed increased soybean saline and alkaline tolerance.Dna J interacted with Hsp70,and Gm Hsp70 increased the saline and alkaline tolerance of plants with chimeric soybean hairy roots.Binshuo Zhang Zhen Liu Runnan Zhou Peng Cheng Haibo Li Zhiyang Wang Ying Liu Mingyang Li Zhenqing Zhao Zhenbang Hu Qingshan Chen Xiaoxia Wu Ying Zhao 2023The Crop Journal2023,11,4:0
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