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| 1 | In situ atomic-scale observation of dislocation behaviors in twin-structured Pt nanocrystals显示文摘The deformation mechanisms of twin-structured metallic materials have attracted great interest.Though previous theoretical predictions have suggested that the repulsive force of the twin boundary(TB)can significantly affect the deformation of twinstructured metals,it remains unclear whether this prediction applies to experimental conditions.In this paper,the atomic-scaled deformation process of twin-structured Pt nanocrystals was in situ observed using our home-made device in a high-resolution transmission electron microscope.We have shown that the plastic deformation of the twin-structured Pt nanocrystals was governed by full dislocation generation as well as Lomer dislocation(LD)lock formation and destruction.After LD locks were destructed,these full dislocations tended to move towards the surface of the nanocrystals.The findings revealed that due to the ultra-high repulsive force of TB on dislocation,there was no dislocation-TB reaction during the deformation.These findings can enrich our understanding of the dislocation behaviors of twin-structured nanocrystals. | GUO YiZhong SUN Tao FU LiBo HAO LongHu HUANG Ming WEI RuJian LUO JunFeng HE Xin WANG XingQuan XIONG XiaoDong WANG LiHua HAN XiaoDong | 2021 | Science China(Technological Sciences)2021，64，3： | 2 |
| 2 | High-Purity Nickel Prepared by Electron Beam Melting: Purification Mechanism显示文摘 | Tao Zhang Zaiyan Shang Ming Chen Jinjiang He Baoguo Lv Xingquan Wang Xiaodong Xiong | 2014 | Metallurgical and Materials Transactions B2014，，1： | 1 |
| 3 | Efficient string matching with wildcards and length constraints显示文摘 | Gong Chen Xindong Wu Xingquan Zhu Abdullah N. Arslan Yu He | 2006 | Knowledge and Information Systems2006，，4： | 1 |
| 4 | Alkoxysilane functionalized polycaprolactone/polysiloxane modified epoxy resin through sol–gel process显示文摘 | Pinggui Liu Jiangxuan Song Lihua He Xingquan Liang Heyan Ding Qifang Li | 2007 | European Polymer Journal2007，，3： | 1 |
| 5 | Surface modification by ZnO coating for improving the elevated temperature performance of LiMn2O4显示文摘 | LIU Dongqiang LIU Xingquan HE Zezheng | 2007 | Journal of Alloys and Compounds2007，436，1： | 1 |
| 6 | Postharvest Variations of Rice Physicochemical Traits and Volatile Compounds under Granary Conditions During Long-Time Storage显示文摘Rice quality is influenced by many factors,viz.,temperature,humidity,atmosphere and storage time.To uncover quality variations of rice after postharvest,we estimated the physicochemical properties and volatile compounds of an indica rice Zhongzheyou 8 under granary conditions(20ºC-25ºC in summer and 10ºC-15ºC in other seasons)for three years. | HU Hao LIU Xingquan HE Yukai JIN Jiande WU Fenghua HUANG Shiwen ZHANG Jiaojiao | 2023 | Rice science2023，30，2： | 0 |
| 7 | Analysis of the Applicability of a Risk Quantitative Evaluation Method to High Temperature-Pressure Drilling Engineering显示文摘The optimization of methods for the quantitative evaluation of risks in drilling engineering is an effective means to ensure safety in situations where high temperature and high pressure blocks are considered.In such a context,this study analyzes the complexity of the drilled wells in such blocks.It is shown that phenomena such as well kick,loss,circulation,and sticking,are related to the imbalance of wellbore pressure.A method for risk quantitative evaluation is proposed accordingly.The method is used to evaluate the risk for 9 drilled wells.By comparing the predictions of the method with actual historical data related to these wells,it is found that the coincidence rate is about 95%. | Renjun Xie Xingquan Zhang Baolun He Ningyu Zheng Yuqiang Xu | 2023 | Fluid Dynamics & Materials Processing2023，19，6： | 0 |
| 8 | Reflecting Surface-Aided Device-to-Device Communications System显示文摘Intelligent reflecting surface(IRS)is a promising technology for its capability of reflecting the incident signal towards the desired user.IRS can improve the efficiency of wireless communication systems.This paper introduces IRS into a device-to-device(D2D)communications system to improve the throughput of the D2D network.We adopt the block coordinate descent al-gorithm and semidefinite relaxation technique to optimize the beamforming vector,power allocation and phase shift matrix.Simulation results demonstrate that IRS is able to enhance the throughput of the D2D communications system,and the proposed algorithm significantly outper-forms the other benchmark algorithms. | Chiya Zhang Wenyu Chen Chunlong He Xingquan Li | 2020 | Journal of Communications and Information Networks2020，5，4： | 0 |
| 9 | Power Minimization for the IRS-Aided SWIPT Secure Communication System with Imperfect Cascaded Channel显示文摘Intelligent reflecting surface(IRS)-assisted simultaneous wireless information and power transfer(SWIPT)is a promising technology for prolonging the lifetime of the users and improving system performance.However,it is challenging to obtain the perfect channel state information(CSI)at the base station(BS)due to the lack of radio frequency(RF)chains at the IRS,which becomes even harder when eavesdroppers(Eves)exist.In this paper,we study the power issues in the IRS-aided SWIPT system under the imperfect CSI of BS-IRS-Eves links.We aim to minimize the transmitting power at the BS by jointly designing transmit beamforming and reflective beamforming with subject to the rate outage probability constraints of the Eves,the energy harvesting constraints of the energy receivers(ERs),and the minimum rate constraints of the information receivers(IRs).We use Bernstein-type inequality to solve the rate outage probability constraints.Afterward,the formulated nonconvex problem can be efficiently tackled by employing alternating optimization(AO)combined with semidefinite relaxation(SDR)and penalty convex-concave procedure(CCP).Numerical results demonstrate the effectiveness of the proposed scheme. | Chunlong He Shuqiong Xu Gongbin Qian Xingquan Li Chiya Zhang | 2023 | Journal of Communications and Information Networks2023，8，2： | 0 |
| 10 | Boron:A key functional component for designing high-performance heterogeneous catalysts显示文摘Heterogeneous catalysis is a vivid branch of traditional catalysis field,with the advantage of high efficiency and being easily separated from reactants and products after reaction,and have received widespread attentions in large-scale industrial production,especially in the field of energy utilization.Boron has been found to be a key functional component for designing high-performance heterogeneous catalysts.In this review,we cover and categorize the past and recent progress in boron-containing materials and their applications in heterogeneous catalysis particularly in energy-related fields.The fundamental roles of boron components in the emerging heterogeneous catalysis of construction,regulation and stabilization of active phases/sites are highlighted,with the emphasis on how they regulating structural and electronic properties of host materials.We then categorize boron-containing catalysts into six kinds mainly including intermetallic boride catalysts,metal boride-derived catalysts,boron-doped catalysts,metal boride-decorated catalysts,boron-containing compounds as catalyst supports,and singleboron-site catalysts,as well as try to establish structure-catalytic activity relationship.The catalytic applications of these six boron-containing catalysts are discussed separately,focusing on the energy-related reactions such as hydrogen evolution reaction(HER),oxygen evolution reaction(OER),oxygen reduction reaction(ORR),carbon dioxide reduction reaction(CO_(2)RR)and nitrogen reduction reaction(NRR).Finally,the opportunities and challenges related to boron-containing compounds in the field of catalysis are prospected. | Meihong Fan Xiao Liang Qiuju Li Lili Cui Xingquan He Xiaoxin Zou | 2023 | Chinese Chemical Letters2023，34，1： | 0 |
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