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9篇 您的检索式:作者名="Yubing Qiu"
    题名 作者 年代 出处 被引量
1Metal-organic framework membranes: From synthesis to electrocatalytic applications显示文摘Metal-orga nic frameworks(MOFs),as an emerging family of porous inorga nic-organic crystal materials,exhibit widely applications in gas storage and separation,drug release,sensing,and catalysis,owing to easily adjustable pore sizes,uniformly distributed metal centers,high surface areas,and tunable functionalities.However,MOF crystal powders are usually difficult to be directly applied into specific devices because of their brittleness,insolubility and low compatibility.Therefore,to expand versatile MOF membranes with robustness and operational flexibility is urgent to satisfy practical applications.Although numerous reports have reviewed the synthesis and applications of MOF membranes,relatively few reports the electrocatalytic properties based on MOF membranes.Herein,this mini-review provides an overview of preparation of MOF membranes,including directed synthesis,secondary growth and electrochemical deposition method.Meanwhile,fabrication of ultrathin 2D MOF nanosheets those can be also defined as a kind of nanoscale MOF membranes is also mentioned.Electrocatalytic performance of oxygen reduction reaction(ORR),oxygen evolution reaction(OER),hydrogen evolution reaction(HER)and CO2 reduction reaction(CO2RR) for diverse MOF membranes/nanosheets and their derivatives are introduced.Xiaobang Liu Ting Yue Kai Qi Yubing Qiu Bao Yu Xia Xingpeng Guo 2020Chinese Chemical Letters2020,31,9:3
2Benzotriazole as a volatile corrosion inhibitor during the early stage of copper corrosion under adsorbed thin electrolyte layers显示文摘Zhenyu Chen Ling Huang Guoan Zhang Yubing Qiu Xingpeng Guo 2012Corrosion Science2012,,:2
3Advances in wide-tuning and narrow-linewidth external-cavity diode lasers显示文摘The external-cavity diode laser is advantageous in terms of low noise,high side-mode suppression ratio,high temperature stability,simple structure,and low cost,which has been the preferred scheme to realize wide-tuning and narrow-linewidth characteristics.Thus,it has been widely used in optical communication,lidar,environmental monitoring,spectral analysis,optical coherence tomography,and other frontier fields.Herein,we introduce the technical scheme and review the development status of wide-tuning and narrow-linewidth external-cavity diode lasers in detail.Primarily,the structure,working principles,and performance characteristics of external-cavity diode lasers are deeply analyzed according to different structures.The structural characteristics,key technologies,optical performance and application fields of state-of-theart studies in recent years are discussed.Finally,the challenges and potential development prospects of wide-tuning and narrow-linewidth external-cavity diode lasers are analyzed and discussed.Qiang CUI Yuxin LEI Yongyi CHEN Cheng QIU Ye WANG Dexiao ZHANG Lutai FAN Yue SONG Peng JIA Lei LIANG Yubing WANG Li QIN Yongqiang NING Lijun WANG 2022Science China(Information Sciences)2022,65,8:1
4Corrosion of conductive polypyrrole: Effects of continuous cathodic and anodic polarisation显示文摘Kai Qi Yubing Qiu Zhenyu Chen Xingpeng Guo 2013Corrosion Science2013,,:1
5Effect of dissolved hydrogenon the electrochemical behaviour of Alloy 600 in simulated PWRprimary water at 290℃ 显示文摘Qiu Yubing Shoji Tetsuo Lu Zhanpeng 2011Corrosion Science2011,53,:1
6Analysis of Boundary Layer Structure,Turbulence,and Flux Variations before and after the Passage of a Sea Breeze Front Using Meteorological Tower Data显示文摘A detailed analysis of a sea breeze front(SBF)that penetrated inland in the Beijing–Tianjin–Hebei urban agglomeration of China was conducted.We focused on the boundary layer structure,turbulence intensity,and fluxes before and after the SBF passed through two meteorological towers in the urban areas of Tianjin and Beijing,respectively.Significant changes in temperature,humidity,winds,CO_(2),and aerosol concentrations were observed as the SBF passed.Differences in these changes at the two towers mainly resulted from their distances from the ocean,boundary layer conditions,and background turbulences.As the SBF approached,a strong updraft appeared in the boundary layer,carrying near-surface aerosols aloft and forming the SBF head.This was followed by a broad downdraft,which destroyed the near-surface inversion layer and temporarily increased the surface air temperature at night.The feeder flow after the thermodynamic front was characterized by low-level jets horizontally,and downdrafts and occasional updrafts vertically.Turbulence increased significantly during the SBF’s passage,causing an increase in the standard deviation of wind components in speed.The increase in turbulence was more pronounced in a stable boundary layer compared to that in a convective boundary layer.The passage of the SBF generated more mechanical turbulences,as indicated by increased friction velocity and turbulent kinetic energy(TKE).The shear term in the TKE budget equation increased more significantly than the buoyancy term.The atmosphere shifted to a forced convective state after the SBF’s passage,with near isotropic turbulences and uniform mixing and diffusion of aerosols.Sensible heat fluxes(latent heat and CO_(2)fluxes)showed positive(negative)peaks after the SBF’s passage,primarily caused by horizontal and vertical transport of heat(water vapor and CO_(2))during its passage.This study enhances understanding of boundary layer changes,turbulences,and fluxes during the passage of SBFs over urban areas.Ju LI Junxia DOU Donald H. LENSCHOW Mingyu ZHOU Lihong MENG Xiaobin QIU Yubing PAN Jingjiang ZHANG 2023Journal of Meteorological Research2023,37,6:0
7Uncovering the Impact of Control Strategies on the Transmission Pattern of SARS-CoV-2—Ruili City,Yunnan Province,China,February–March 2022显示文摘Introduction:The implementation of public health and social measures(PHSMs)was an effective option for controlling coronavirus disease 2019(COVID-19).However,evidence is needed to evaluate these PHSMs’effects on the recently emerged variant Omicron.Methods:This study investigated variant Omicron BA.2’s outbreak in Ruili City,Yunnan Province,China.The disease transmission dynamics,spatiotemporal interactions,and transmission networks were analyzed to illustrate the effect of PHSM strategies on Omicron spread.Results:A total of 387 cases were related to the outbreak.The time-varying reproduction number was synchronized with PHSM strategies.Spatiotemporal clustering strength presented heterogeneity and hotspots.Restricted strategies suppressed temporal and spatial relative risk compared with routine and upgraded strategies.The transmission network presented a steeper degree distribution and a heavier tail under upgraded strategies.Phase transformation and distinctive transmission patterns were observed from strategy-stratified subnetworks.Conclusions:The tightened response strategy contained reproduction of the virus,suppressed spatiotemporal clustering,and reshaped the networks of COVID-19 Omicron variant transmission.As such,PHSMs against Omicron are likely to benefit future responses as well.Jinou Chen Yubing Qiu Yuhua Shi Wei Wu Erda Zheng Lin Xu Manhong Jia 2022China CDC weekly2022,4,46:0
8Signal recovery method based on co-prime array显示文摘A signal waveform recovery method based on the coprime array is investigated to extract the waveform of the desired signal from spatial interferences in narrowband scenarios. The direction of arrivals(DOAs) of the desired signal and interference signals are estimated with the compressive sensing approach based on angle grids, and the signal power together with the noise power are estimated. Thereafter, a modified steepest descent(SD) method is derived to recover the waveform of the desired signal and interferences utilizing the estimated power and directions. The recovered waveform of the desired signal is the output of the proposed method. The situation in which the signals are not on the predefined angle grids is also considered. The DOAs estimated via the predefined angle grids are corrected based on the maximum likelihood(ML) angle estimation. Compared to the existing beamforming methods on co-prime array, the proposed method can obtain the waveform of the desired signal. Simulation results demonstrate that the proposed method can achieve good performance in signal waveform recovery and output signal to noise ratio.Shuang Qiu Weixing Sheng Xiaofeng Ma Yubing Han Renli Zhang 2017Journal of Systems Engineering and Electronics2017,28,2:0
9An Efficient Process for Recycling Nd-Fe-B Sludge as High-Performance Sintered Magnets显示文摘Given the increasing concern regarding the global decline in rare earth reserves and the environmental burden from current wet-process recycling techniques,it is urgent to develop an efficient recycling technique for leftover sludge from the manufacturing process of neodymium-iron-boron(Nd-Fe-B)sintered magnets.In the present study,centerless grinding sludge from the Nd-Fe-B sintered magnet machining process was selected as the starting material.The sludge was subjected to a reduction-diffusion(RD)process in order to synthesize recycled neodymium magnet(Nd2Fe14B)powder;during this process,most of the valuable elements,including neodymium(Nd),praseodymium(Pr),gadolinium(Gd),dysprosium(Dy),holmium(Ho),and cobalt(Co),were recovered simultaneously.Calcium chloride(CaCl2)powder with a lower melting point was introduced into the RD process to reduce recycling cost and improve recycling efficiency.The mechanism of the reactions was investigated systematically by adjusting the reaction temperature and calcium/sludge weight ratio.It was found that single-phase Nd2Fe14B particles with good crystallinity were obtained when the calcium weight ratio(calcium/sludge)and reaction temperature were 40 wt% and 1050℃,respectively.The recovered Nd2Fe14B particles were blended with 37.7 wt% Nd4Fe14B powder to fabricate Nd-Fe-B sintered magnets with a remanence of 12.1 kG(1 G=1×10^-4T),and a coercivity of 14.6 kOe(1 Oe=79.6A·m^-1),resulting in an energy product of 34.5 MGOe.This recycling route promises a great advantage in recycling efficiency as well as in cost.Xiaowen Yin Ming Yue Qingmei Lu Min Liu Feng Wang Yubing Qiu Weiqiang Liu Tieyong Zuo Shanshun Zha Xuliang Li Xiaofei Yi 2020Engineering2020,6,2:0
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