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39篇 您的检索式:作者名="Xu Zhenghui"
    题名 作者 年代 出处 被引量
1Infiltrating lithium into carbon doth decorated with zinc oxide arrays for dendrite-free lithium metal anode显示文摘Lithium metal anode for batteries has attracted extensive attentions, but its application is restricted by the hazardous dendritic Li growth and dead Li formation. To address these issues, a novel Li anode is developed by infiltrating molten Li metal into conductive carbon cloth decorated with zinc oxide arrays. In carbonate-based electrolyte, the symmetric cell shows no short circuit over 1,500 h at 1 mA·cm^-2, and stable voltage profiles at 3 mA cm^-2 for ~ 300 h cycling. A low overpotential of ~ 243 mV over 350 cycles at a high current density of 10 mA·cm^-2 is achieved, compared to the seriously fluctuated voltage and fast short circuit in the cell using bare Li metal. Meanwhile, the asymmetric cell withstands 1,000 cycles at 10 C (1 C = 167 mAh·g^-1) compared to the 210 cycles for the cell using bare Li anode. The excellent performance is attributed to the well-regulated Li plating/stripping drive n from the formation of LiZn alloy on the wavy carb on fibers, resulting in the suppress!on of dendrite growth and pulverization of the Li electrode during cycling.Xianshu Wang Zhenghui Pan Yang Wu Xiaoyu Ding Xujia Hong Guoguang Xu Meinan Liu Yuegang Zhang Weishan Li 2019Nano Research2019,12,3:8
2Wall shear stress in intracranial aneurysms and adjacent arteries显示文摘Hemodynamic parameters play an important role in aneurysm formation and growth. However, it is difficult to directly observe a rapidly growing de novo aneurysm in a patient. To investigate possible associations between hemodynamic parameters and the formation and growth of intracranial aneurysms, the present study constructed a computational model of a case with an internal carotid artery aneurysm and an anterior communicating artery aneurysm, based on the CT angiography findings of a patient. To simulate the formation of the anterior communicating artery aneurysm and the growth of the internal carotid artery aneurysm, we then constructed a model that virtually removed the anterior communicating artery aneurysm, and a further two models that also progressively decreased the size of the internal carotid artery aneurysm. Computational simulations of the fluid dynamics of the four models were performed under pulsatile flow conditions, and wall shear stress was compared among the different models. In the three aneurysm growth models, increasing size of the aneurysm was associated with an increased area of low wall shear stress, a significant decrease in wall shear stress at the dome of the aneurysm, and a significant change in the wall shear stress of the parent artery. The wall shear stress of the anterior communicating artery remained low, and was significantly lower than the wall shear stress at the bifurcation of the internal carotid artery or the bifurcation of the middle cerebral artery. After formation of the anterior communicating artery aneurysm, the wall shear stress at the dome of the internal carotid artery aneurysm increased significantly, and the wall shear stress in the upstream arteries also changed significantly. These findings indicate that low wall shear stress may be associated with the initiation and growth of aneurysms, and that aneurysm formation and growth may influence hemodynamic parameters in the local and adjacent arteries.Fuyu Wang Bainan Xu Zhenghui Sun Chen Wu Xiaojun Zhang 2013Neural Regeneration Research2013,8,11:6
3Geochronology and geochemistry of mafic dykes in the Helanshan complex: Implications for Mesozoic tectonics in the North China Craton显示文摘The Helanshan tectonic belt(HTB) is a major tectonic divide between the Alxa and Ordos blocks in the North China Craton. The geochronology and petrogenesis of the mafic dykes in the northern HTB are keys to understanding the tectonic evolution of this belt. The mafic dykes, intruded into the Neoarchean-Paleoproterozoic metamorphic basement, are mainly composed of diabase with a mineral assemblage of plagioclase(45%-60%), pyroxene(25%-35%), minor quartz and Fe-Ti oxides. The LA-ICPMS U-Pb analysis of zircon grains from representative dykes yield a weighted mean age of 206 ± 1.9 Ma, which represents the crystallization age of the dyke. The diabases show high contents of Fe_2 O_3~T(11.88-17.55 wt.%), low contents of SiO_2(45.65-50.95 wt.%) and MgO(3.31-5.50 wt.%) with low Mg#(=100×MgO/(MgO + FeO) atomic ration) of 33-44. They are characterized by enrichment of light rare earth elements(LREEs) and large ion lithophile elements(LILEs)(e.g., Rb, Ba and Pb), and slight depletion of high field strength elements(HFSEs). These features suggest that the magma has undergone extensive fractionation of olivine and pyroxene but only minor crustal contamination during its evolution. Their high Sm contents and La/Sm ratios, and low Sm/Yb ratios indicate that magma from which the dykes formed was derived from low degree(about 5%) partial melting of an enriched garnet + spinel lherzolite mantle source. Together with regional geology, these geochemical and geochronological data suggest that the mafic dykes in the HTB were formed in an intracontinental extensional setting during the late Triassic.Zhenghui Li Xiaoming Liu Yunpeng Dong M.Santosh Feifei Zhang Jie Xu 2018Geoscience Frontiers2018,9,6:6
4In-situ growth of vertically aligned nickel cobalt sulfide nanowires on carbon nanotube fibers for high capacitance all-solid-state asymmetric fiber-supercapacitors显示文摘Fiber-supercapacitors(FSCs)are promising power sources for miniature portable and wearable electronic devices.However,the development and practical application of these FSCs have been severely hindered by their low volumetric capacitance and narrow operating voltage.In this work,vertically aligned nickel cobalt sulfide(Ni Co2S4)nanowires grown on carbon nanotube(CNT)fibers were achieved through an in-situ two-step hydrothermal reaction method.The as-prepared Ni Co2S4@CNT fiber electrode exhibits a high volumetric capacitance of 2332 F cm-3,benefiting from its superior electric conductivity,large surface area,and rich Faradic redox reaction sites.Furthermore,a Ni Co2S4@CNT//VN@CNT(vanadium nitride nanosheets grown on CNT fibers)asymmetric fiber-supercapacitor(AFSC)was successfully fabricated.The device exhibits an operating voltage up to 1.6 V and a high volumetric energy density of 30.64m Wh cm-3.The device also possesses outstanding flexibility as evidenced by no obvious performance degradation under various bending angles and maintaining high capacitance after 5000 bending cycles.This work promotes the practical application of flexible wearable energy-storage devices.Na Liu Zhenghui Pan Xiaoyu Ding Jie Yang Guoguang Xu Linge Li Qi Wang Meinan Liu Yuegang Zhang 2020Journal of Energy Chemistry2020,29,2:5
5Diversity of metabolite accumulation patterns in inner and outer seed coats of pomegranate:exploring their relationship with genetic mechanisms of seed coat development显示文摘The expanded outer seed coat and the rigid inner seed coat of pomegranate seeds,both affect the sensory qualities of the fruit and its acceptability to consumers.Pomegranate seeds are also an appealing model for the study of seed coat differentiation and development.We conducted nontarget metabolic profiling to detect metabolites that contribute to the morphological differentiation of the seed coats along with transcriptomic profiling to unravel the genetic mechanisms underlying this process.Comparisons of metabolites in the lignin biosynthetic pathway accumulating in seed coat layers at different developmental stages revealed that monolignols,including coniferyl alcohol and sinapyl alcohol,greatly accumulated in inner seed coats and monolignol glucosides greatly accumulated in outer seed coats.Strong expression of genes involved in monolignol biosynthesis and transport might explain the spatial patterns of biosynthesis and accumulation of these metabolites.Hemicellulose constituents and flavonoids in particular accumulated in the inner seed coat,and candidate genes that might be involved in their accumulation were also identified.Genes encoding transcription factors regulating monolignol,cellulose,and hemicellulose metabolism were chosen by coexpression analysis.These results provide insights into metabolic factors influencing seed coat differentiation and a reference for studying seed coat developmental biology and pomegranate genetic improvement.Gaihua Qin Chunyan Liu Jiyu Li Yongjie Qi Zhenghui Gao Xiaoling Zhang Xingkai Yi Haifa Pan Ray Ming Yiliu Xu 2020Horticulture Research2020,7,1:4
6Inadvertent insertion of nephrostomy tube into the renal vein following percutaneous nephrolithotomy: A case report and literature review显示文摘Percutaneous nephrolithotomy(PCNL)is an effective and well accepted procedure for the treatment of large and complex renal calculi.We encountered a patient with a mis-placed percutaneous nephrostomy drainage tube(PNDT)into the contralateral renal vein re-sulting thrombus formation after undergoing right side PCNL.We placed a temporary filter to prevent embolism and started anti-coagulation therapy immediately and finally the PNDT was removed without bleeding.Guangju Ge Zhenghui Wang Mingchao Wang Gonghui Li Zuhao Xu Yukun Wang Shawpong Wan 2020Asian Journal of Urology2020,7,1:3
7Bi Nanoparticles Anchored in N-Doped Porous Carbon as Anode of High Energy Density Lithium Ion Battery显示文摘A novel bismuth–carbon composite, in which bismuth nanoparticles were anchored in a nitrogen-doped carbon matrix(Bi@NC), is proposed as anode for high volumetric energy density lithium ion batteries(LIBs).Bi@NC composite was synthesized via carbonization of Zn-containing zeolitic imidazolate(ZIF-8) and replacement of Zn with Bi, resulting in the N-doped carbon that was hierarchically porous and anchored with Bi nanoparticles. The matrix provides a highly electronic conductive network that facilitates the lithiation/delithiation of Bi.Additionally, it restrains aggregation of Bi nanoparticles and serves as a buffer layer to alleviate the mechanical strain of Bi nanoparticles upon Li insertion/extraction.With these contributions, Bi@NC exhibits excellent cycling stability and rate capacity compared to bare Bi nanoparticles or their simple composites with carbon. This study provides a new approach for fabricating high volumetric energy density LIBs.Yaotang Zhong Bin Li Shumin Li Shuyuan Xu Zhenghui Pan Qiming Huang Lidan Xing Chunsheng Wang Weishan Li 2018Nano-Micro Letters2018,10,4:3
8Prostate specific membrane antigen knockdown impairs the tumorigenicity of LNCaP prostate cancer cells by inhibiting the phosphatidylinositol 3-kinase/Akt signaling pathway显示文摘Guo Zhenghui Lai Yiming Du Tao Zhang Yiming Chen Jieqing Bi Liangkuan Lin Tianxin Liu Hao Wang Wei Xu Kewei Jiang Chun Han Jinli Zhang Caixia Dong Wen Huang Jian Huang Hai 2014Chinese Medical Journal2014,,5:2
9A new parameterization for surface and groundwater interactions and its impact on water budgets with the variable infiltration capacity land surface model显示文摘Liang Xu Xie Zhenghui Huang Maoyi 2003Journal of Geophysical Research2003,108,:1
10A new surface runoff parameterizatation with subgrid-scale soil heterogeneity for land surface models显示文摘Liang Xu Xie Zhenghui 2001Advances in Water Resources2001,24,910:1
11Oxidation of double glow plasma discharge coatings of iridium on molybdenum for liquid fueled rocket motor casings显示文摘Wang Jinming Zhang Zhongwei Xu Zhenghui 2011Corr Eng Sci Technol2011,46,6:1
12A new surface runoff parameterization with sub-grid scale soil heterogeneity for land surface models显示文摘Xu Liang Zhenghui Xie 2001Advances In Water Resources2001,,24:1
13Important factors in land–atmosphere interactions: surface runoff generations and interactions between surface and groundwater显示文摘Xu Liang Zhenghui Xie 2003Global and Planetary Change2003,,1:1
14A new surface runoff parameterization with subgrid-scale soil heterogeneity for land surface models显示文摘Xu Liang Xie Zhenghui 0,,24:1
15Applications of a Surface runoff model with Horton and Dunne runoff for VIC显示文摘Xie Zhenghui Su Fengge Xu Liang 0,,02:1
16A new surface run off parameterization with subgrid-scale soil heterogeneity for land surface models 显示文摘LIANG Xu XIE Zhenghui 2001Advances in Water Resources2001,24,:1
17A new surface runoff parameterization with subgrid-scale soil heterogeneity for land surface models 显示文摘Liang Xu Xie Zhenghui 2001Advances in Water Resources2001,24,910:1
18Applications of a surface runoff model with Horton and Dunne runoff for VIC 显示文摘Xie Zhenghui Su Fengge Liang Xu 2003Advances in Atmosphere Science2003,20,2:1
19Rapid and simultaneous detection of Ureaplasma parvum and Chlamydia trachomatis antibodies based on visual protein microarray using gold nanoparticles and silver enhancement显示文摘Jingfeng Tang Zhenghui Xu Li Zhou Hong Qin Yefu Wang Hanhua Wang 2010Diagnostic Microbiology & Infectious Disease2010,,2:1
20Application of a high thermal conductivity C/C composite in a heat-redistribution thermal protection system显示文摘Li Tongqi Xu Zhenghui Hu Zijun 2010Carbon2010,48,3:1
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