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| 1 | Contemporary crustal movement of continental China obtained by global positioning system(GPS) measurements显示文摘We obtain a unified horizontal velocity field of continental China and vicinity through measurements at 81 GPS stations provided by the National Key Infrastructure Project, Crustal Movement Observation Network of China. The velocity field delineates patterns of movements and deformation of active crustal blocks in continental China under the Eurasia-fixed reference frame. The space-based geodesy also clearly shows for the first time the horizontal movementand deformation of continental China induced by indentation of the Indian plate. The data provide kinematic constraints for simulating dynamic process of continental litho-spheric deformation. | MA Zongjin, CHEN Xinlian, YE Shuhua, LAI Xian, WEI Ziqing, CHEN Junrong, NING Jinsheng, XU Huoze & DING Guoyu1. Insitute of Geology, China Seismological Bureau, Beijing 100029, China (e-mail: disgroup@publi.bta.net.cn)2. Center for Analysis and Prediction, China Seismological Bureau, Beijing 100036, China 3. Shanghai Astronomic Observatory, Chinese Academy of Sciences, Shanghai 200030, China 4. Institute of Seismology, China Seismological Bureau, Wuhan 430077, China 5. Institute of Survey and Mapping, Xi’an 710054, China 6. National Bureau of Survey and Mapping, Beijing 100830, China 7. Wuhan University, Wuhan 430077, China 8. Institute of Geodesy and Geophysics, Wuhan 430077, China 9. China Seismological Bureau, Beijing 100036, China | 2001 | Chinese Science Bulletin2001,46,18: | 34 |
| 2 | Analysis of extrapolation cascadic multigrid method(EXCMG)显示文摘Based on an asymptotic expansion of finite element,a new extrapolation formula and extrapolation cascadic multigrid method(EXCMG)are proposed,in which the new extrapolation and quadratic interpolation are used to provide a better initial value on refined grid.In the case of triple grids,the error of the new initial value is analyzed in detail.A larger scale computation is completed in PC. | CHEN ChuanMiao HU HongLing XIE ZiQing LI ChenLiang | 2008 | Science China Mathematics2008,51,8: | 23 |
| 3 | SUPERCONVERGENCE OF DG METHOD FOR ONE-DIMENSIONAL SINGULARLY PERTURBED PROBLEMS显示文摘集中和为在一个维的设定的一个不可思议地使不安的模型问题的不连续的 Galerkin (DG ) 方法的超级集中性质被学习。由与 DG 答案的适当地选择的数字踪迹,存在和唯一使用 DG 方法,最佳的顺序 L<sub>2</sub> 错误界限,和 2p +i 顺序数字踪迹斧子的超级集中建立了。数字结果显示 DG 方法不甚至在一致网孔下面生产任何摆动。数字实验证明在一致网孔下面,获得数字踪迹的一致超级集中似乎不可能。不过,对所谓的 Shishkin 类型的实现的感谢协调,一致 2p +1 顺序超级集中数字地被观察。 | Ziqing Xie Zhimin Zhang | 2007 | Journal of Computational Mathematics2007,25,2: | 18 |
| 4 | 中国成年人头面测量及分析显示文摘目的通过中国成年人头面部尺寸测量,了解中国成年人头面部形状变化的特点,分析头面部测量项目间的关系,寻找代表性指标,为头面部产品特别是头面劳动保护用品生产提供重要依据。方法采用《用于技术设计的人体测量基础项目》(ISO7250:1996)和《用于技术设计的人体测量基础项目》(GB/T5703-99)定义的头面尺寸测量方法,利用卡尺、卡钳、瞳孔计等测量工具对20项头面指标和身高、体重、腰围、臀围4项人体指标进行了测量。按照年龄、性别和地区抽取中国成年人作为测量对象。通过独立样本t检验、方差分析研究性别、肥胖和地区对中国成年人头面尺寸的影响,使用相关分析和聚类分析探讨这些测量项目间的内在联系,找出可以反映头面部情况的代表性指标。结果共测量3000名中国成年人(男2026人、女974人),男性头面尺寸明显大于女性头面尺寸,男性形态面长、面宽、下颌角宽、唇长、鼻深平均值分别为117.0、147.6、118.5、51.7、18.7mm,女性分别为109.7、140.1、114.5、49.3、17.7mm,差异有统计学意义(P〈0.01)。不同出生地区者头面尺寸有明显差异,除头最大长、唇长和形态面长外,东北华北区成年人的头面尺寸均明显大于西南区。身体肥胖者头面尺寸明显大于非肥胖者,差异有统计学意义(P〈0.01)。通过聚类分析筛选了5个有代表的重要指标:形态面长、面宽、下颌角宽、唇长、鼻深。相关分析显示,该5项指标可以较好地反映头面尺寸。结论中国成年人头面尺寸受性别、出生地、身体肥胖状况的影响;年龄对头面部尺寸的影响不明显。通过聚类分析和相关分析获得5项头面代表性指标:形态面长、面宽、下颌角宽、唇长、鼻深,建议以此指导头面产品的设计。 | 杜利利 汪利民 Ziqing Zhuang 王正伦 唐先智 关宏宇 邢景才 王海椒 刘跃伟 苏文进 陈卫红 | 2008 | 中华劳动卫生职业病杂志2008,26,5: | 17 |
| 5 | Collagen-binding basic fibroblast growth factor improves functional remodeling of scarred endometrium in uterine infertile women: a pilot study显示文摘Intrauterine adhesion(IUA) is a common cause of uterine infertility and one of the most severe clinical features is endometrial fibrosis namely endometrial scarring for which there are few cures currently. Blocked angiogenesis is the main pathological change in the scarred endometrium. The fibroblast growth factor 2(b FGF), a member of FGF family, is usually applied to promote healing of refractory ulcer and contributes to angiogenesis of tissues. In this study, the sustained-release system of b FGF100 μg was administrated around scarred endometrium guiding by ultrasound every 4 weeks in 18 patients(2–4 times). Results showed that after treatment, the menstrual blood volume, endometrial thickness and the scarred endometrial area were improved.Histological study showed blood vessel density increased obviously. Three patients(3/18) achieved pregnancy over 20 gestational weeks. Therefore, administrating the b FGF surrounding scarred endometrium may provide a new therapeutic approach for the patients with endometrial fibrosis. | Peipei Jiang Xiaoqiu Tang Huiyan Wang Chenyan Dai Jing Su Hui Zhu Minmin Song Jingyu Liu Ziqing Nan Tong Ru Yaling Li Jingmei Wang Jun Yang Bing Chen Jianwu Dai Yali Hu | 2019 | Science China(Life Sciences)2019,62,12: | 16 |
| 6 | Machine learning guided appraisal and exploration of phase design for high entropy alloys显示文摘High entropy alloys(HEAs)and compositionally complex alloys(CCAs)have recently attracted great research interest because of their remarkable mechanical and physical properties.Although many useful HEAs or CCAs were reported,the rules of phase design,if there are any,which could guide alloy screening are still an open issue.In this work,we made a critical appraisal of the existing design rules commonly used by the academic community with different machine learning(ML)algorithms.Based on the artificial neural network algorithm,we were able to derive and extract a sensitivity matrix from the ML modeling,which enabled the quantitative assessment of how to tune a design parameter for the formation of a certain phase,such as solid solution,intermetallic,or amorphous phase.Furthermore,we explored the use of an extended set of new design parameters,which had not been considered before,for phase design in HEAs or CCAs with the ML modeling.To verify our ML-guided design rule,we performed various experiments and designed a series of alloys out of the Fe-Cr-Ni-Zr-Cu system.The outcomes of our experiments agree reasonably well with our predictions,which suggests that the ML-based techniques could be a useful tool in the future design of HEAs or CCAs. | Ziqing Zhou Yeju Zhou Quanfeng He Zhaoyi Ding Fucheng Li Yong Yang | 2019 | npj Computational Materials2019,,1: | 16 |
| 7 | Small molecule inhibitors reveal allosteric regulation of USP14 via steric blockade显示文摘The ubiquitin system is important for drug discovery,and the discovery of selective small-molecule inhibitors of deubiquitinating enzymes (DUBs) remains an active yet extremely challenging task. With a few exceptions,previously developed inhibitors have been found to bind the evolutionarily conserved catalytic centers of DUBs,resulting in poor selectivity. The small molecule IU1 was the first-ever specific inhibitor identified and exhibited surprisingly excellent selectivity for USP14 over other DUBs. However,the molecular mechanism for this selectivity was elusive. Herein,we report the high-resolution co-crystal structures of the catalytic domain of USP14 bound to IU1 and three IU1 derivatives. All the structures of these complexes indicate that IU1 and its analogs bind to a previously unknown steric binding site in USP14,thus blocking the access of the C-terminus of ubiquitin to the active site of USP14 and abrogating USP14 activity. Importantly,this steric site in USP14 is very unique,as suggested by structural alignments of USP14 with several known DUB X-ray structures. These results,in conjunction with biochemical characterization,Indicate a coherent steric blockade mechanism for U5P14 inhibition by compounds of the IU series. In light of the recent report of steric blockade of USP7 by FT671,this work suggests a potential generally applicable allosteric mechanism for the regulation of DUBs via steric blockade,as showcased by our discovery of IU1-248 which is 10-fold more potent than IU1. | Yiwei Wang Yuxuan Jiang Shan Ding Jiawang Li Ningjing Song Yujing Ren Danning Hong Cai Wu Bin Li Feng Wang Wei He Jiawei Wang Ziqing Mei | 2018 | Cell Research2018,28,12: | 15 |
| 8 | V2O5 Nanospheres with Mixed Vanadium Valences as High Electrochemically Active Aqueous Zinc-Ion Battery Cathode显示文摘AV4+-V2O5 cathode with mixed vanadium valences was prepared via a novel synthetic method using VOOH as the precursor,and its zinc-ion storage performance was evaluated.The products are hollow spheres consisting of nanoflakes.The V4+-V2O5 cathode exhibits a prominent cycling performance,with a specific capacity of 140 mAhg-1 after 1000 cycles at 10 A g.1,and an excellent rate capability.The good electrochemical performance is attributed to the presence of V4+,which leads to higher electrochemical activity,lower polarization,faster ion diffusion,and higher electrical conductivity than V2O5 without V4+.This engineering strategy of valence state manipulation may pave the way for designing high-performance cathodes for elucidating advanced battery chemistry. | Fei Liu Zixian Chen Guozhao Fang Ziqing Wang Yangsheng Cai Boya Tang Jiang Zhou Shuquan Liang | 2019 | Nano-Micro Letters2019,11,2: | 12 |
| 9 | 中国成年人呼吸防护用品适合性检验新型头面分栏研究显示文摘目的为满足呼吸防护用品的适配性设计和测试需求,根据目前我国成年人头面测量数据提出2种新的分类(栏)方式:二元分栏和主成分分栏,并分析2种分栏对我国成人头面划分的适用性。方法以近期我国3000名成年人头面尺寸测量数据为基础建立头面尺寸数据库,根据头面尺寸指标脸长一脸宽的二维分布提出我国成年人头面二元分栏。采用主成分分析对10项稳定的头面尺寸指标(最小额宽、脸宽、鄂宽、脸长、瞳孔间距、头宽、鼻突长、鼻宽、鼻梁宽、鼻长)分析后提出我国成年人头面主成分分栏。通过我国成年人头面数据在不同分栏的分布比例分析两类分栏对成人头面划分的适用性。结果我国成年人头面二元分栏和主成分分栏分别将脸型分为10个型号和8个型号,总覆盖率分别为96.9%(男性95.4%,女性98.4%)和96.5%(男性95.1%,女性98.1%)。各型号覆盖比例较为均匀,二元分栏各型号覆盖率在4.6%~21.7%之间,主成分分栏各型号覆盖率在10.4%-14.6%之间。对比分析国外头面分栏方法,美国洛斯阿拉莫斯实验室(LANL)全面罩分栏只能覆盖我国70.9%的人群,且各型号覆盖极不均匀,其中3个型号的覆盖率之和不足1%;美国国家职业安全卫生研究所(NIOSH)研制的二元分栏和主成分分栏能覆盖我国96。4%和95.9%的人群,但各型号分布不均匀,其二元分栏中5个型号仅覆盖6.3%的人群,主成分分栏中3个型号的覆盖率之和为7.2%。结论根据我国成人头面数据提出的二元分栏和主成分分栏能代表国人头面尺寸分布,比国外分栏更适用。 | 余丹 Ziqing Zhuang 程文娟 王欣 杜利利 陈卫红 | 2009 | 中华劳动卫生职业病杂志2009,27,7: | 12 |
| 10 | A NUMERICAL STUDY OF UNIFORM SUPERCONVERGENCE OF LDG METHOD FOR SOLVING SINGULARLY PERTURBED PROBLEMS显示文摘In this paper,we consider the local discontinuous Galerkin method (LDG) for solv-ing singularly perturbed convection-diffusion problems in one- and two-dimensional set-tings.The existence and uniqueness of the LDG solutions are verified.Numerical ex-periments demonstrate that it seems impossible to obtain uniform superconvergence fornumerical fluxes under uniform meshes.Thanks to the implementation of two-type dif-ferent anisotropic meshes,i.e.,the Shishkin and an improved grade meshes,the uniform2p+1-order superconvergence is observed numerically for both one-dimensional and two-dimensional cases. | Ziqing Xie Zuozheng Zhang Zhimin Zhang | 2009 | Journal of Computational Mathematics2009,27,2: | 10 |
| 11 | Optimization of mechanical property, antibacterial property and corrosion resistance of Ti-Cu alloy for dental implant显示文摘Ti-Cu alloys with different Cu contents(3, 5 and 7 wt%) were fabricated and studied as novel antibacterial biomaterials for dental application. The Ti-Cu alloys were annealing treated at different temperatures(740℃, 830℃ and 910℃) in order to obtain three typical microstructures, β-Ti + Ti2Cu, β-Ti + transformed α-Ti, and transformed α-Ti. Mechanical, antibacterial and biocorrosion properties of Ti-Cu alloys with different microstructures were well analyzed by scanning electron microscopy(SEM),X-ray diffraction(XRD), transmission electron microscopy(TEM), tensile test, electrochemical test and antibacterial test. The results indicated that the Ti-Cu alloys with microstructure of β-Ti + Ti2 Cu showed the best ductility compared with other Ti-Cu alloys with microstructures of β-Ti + transformed α-Ti and complete transformed α-Ti, and meanwhile, increase of the Cu content significantly contributed to the decreased ductility due to the increasing amount of Ti2 Cu, which brought both solid solution strengthening and precipitation strengthening. Finally, the Ti-5 Cu alloy with microstructure of β-Ti + Ti2 Cu exhibited excellent ductility, antibacterial property and corrosion resistance, providing a great potential in clinical application for dental implants. | Jiewen Wang Shuyuan Zhang Ziqing Sun Hai Wang Ling Ren Ke Yang | 2019 | Journal of Materials Science & Technology2019,35,10: | 9 |
| 12 | Interfacial adsorption-insertion mechanism induced by phase boundary toward better aqueous Zn-ion battery显示文摘Biphasic and multiphasic compounds have been well clarified to achieve extraordinary electrochemical properties as advanced energy storage materials.Yet the role of phase boundaries in improving the performance is remained to be illustrated.Herein,we reported the biphasic vanadate,that is,Na_(1.2)V_(3)O_(8)/K_(2)V_(6)O_(16)·1.5H_(2)O(designated as Na0.5K0.5VO),and detected the novel interfacial adsorption-insertion mechanism induced by phase boundaries.Firstprinciples calculations indicated that large amount of Zn^(2+)and H^(+)ions would be absorbed by the phase boundaries and most of them would insert into the host structure,which not only promote the specific capacity,but also effectively reduce diffusion energy barrier toward faster reaction kinetics.Driven by this advanced interfacial adsorption-insertion mechanism,the aqueous Zn/Na_(0.5)K_(0.5)VO is able to perform excellent rate capability as well as long-term cycling performance.A stable capacity of 267 mA h g^(-1)after 800 cycles at 5 A g^(-1)can be achieved.The discovery of this mechanism is beneficial to understand the performance enhancement mechanism of biphasic and multiphasic compounds as well as pave pathway for the strategic design of highperformance energy storage materials. | Lutong Shan Yiren Wang Shuquan Liang Boya Tang Yongqiang Yang Ziqing Wang Bingan Lu Jiang Zhou | 2021 | InfoMat2021,3,9: | 8 |
| 13 | Simultaneous regulation of cations and anions in an electrolyte for high-capacity, high-stability aqueous zinc–vanadium batteries显示文摘Safe,inexpensive aqueous zinc-ion batteries(AZIBs)are regarded as promising energy storage devices.However,they still face issues,including dissolution and collapse of the cathode as well as H_(2)evolution and the growth of Zn dendrites on the Zn anode.Herein,we simultaneously regulate the cations and anions in the electrolyte for high-capacity,high-stability aqueous zinc–vanadium(Zn–V)batteries based on a bimetallic cation-doped Na_(0.33)K_(0.1)V_(2)O_(5)·nH_(2)O cathode.We demonstrate that Na^(+) cations suppress cathode dissolution and restrain Zn dendrite growth on the anode via an electrostatic shield effect.We also illustrate that ClO_(4)^(-) anions participate in energy storage at the cathode and are reduced to Cl^(-),generating a protective layer on the Zn anode surface and providing a stable interface to decrease Zn dendrites and H_(2)evolution during long-term cycling.When Na^(+) and ClO_(4)^(-) are introduced into an aqueous ZnSO_(4) electrolyte,a Zn/Zn symmetric cell shows durable and reversible Zn stripping/plating for 1500 h at a current density of 1 mA cm^(-2) and with an area capacity of 1 mAh cm^(-2).Zn/Na_(0.33)K_(0.1)V_(2)O_(5)·nH_(2)O full batteries exhibit a high capacity of 600 mAh g^(-1)at 0.1 A g^(-1) and long-term cycling performance for 5000 cycles,with a capacity of 200 mAh g^(-1) at 20 Ag^(-1). | Ziqing Wang Miao Zhou Liping Qin Minghui Chen Zixian Chen Shan Guo Liangbing Wang Guozhao Fang Shuquan Liang | 2022 | eScience2022,2,2: | 8 |
| 14 | Magnesium Acetate Used as an Effective Catalyst for Synthesizing Aliphatic Polycarbonates via Melt Transesterification Process显示文摘 | WANG Ziqing YANG Xiangui LIU Shaoying ZHANG Hua WANG Gongying | 2016 | Chemical Research in Chinese Universities2016,32,3: | 7 |
| 15 | High-Order Radial Derivatives of Harmonic Function and Gravity Anomaly显示文摘 | Ziqing Wei | 2014 | Journal of Physical Science and Application2014,4,7: | 7 |
| 16 | Rough surface of copper-bearing titanium alloy with multifunctions of osteogenic ability and antibacterial activity显示文摘Implant-related infection and early bone integration are the main risk factors of implants for long-term service,to overcome these difficulties,SLA-TiCu surface was prepared by sandblasting and large-grits etching(SLA)treatment on a novel antibacterial titanium-copper alloy(TiCu),which is the most prevalent surface treatment with micro/submicron hierarchical structures to titanium-based implants.Effects of SLA-TiCu surface on the adhesion,proliferation,apoptosis and differentiation of MC3T3-E1 cells as well as the antibacterial activity against a common orthopedic pathogen(Staphylococcus aureus)were studied.Compared to the following surfaces:sandblasting and large-grits etched pure titanium(SLATi),mechanically ground pure titanium and TiCu alloy(M-Ti and M-TiCu),these results indicated that SLA-TiCu surface obviously enhanced the bone-related gene expressions(alkaline phosphates(ALP),collagen typeⅠ(COLⅠ),Runt-related transcription factor 2(RUN x 2),and osteopontin(OPN)).Moreover,SLA-TiCu surface could maintain a sustainable release of Cu2+ions and effectively inhibited the viability of bacteria.This study demonstrated that SLA-TiCu surface possessed multifunctional characteristics of improved osteogenic ability and antibacterial activity,making it promising as a novel implant material for hard tissue repairs such as orthopedics and dental implants. | Hui Liu Rui Liu Ihsan Ullah Shuyuan Zhang Ziqing Sun Ling Ren Ke Yang | 2020 | Journal of Materials Science & Technology2020,47,13: | 6 |
| 17 | Highly reversible lead-carbon battery anode with lead grafting on thecarbon surface显示文摘A novel C/Pb composite has been successfully prepared by electroless plating to reduce the hydrogen evolution and achieve the high reversibility of the anode of lead-carbon battery(LCB). The deposited lead on the surface of C/Pb composite was found to be uniform and adherent to carbon surface. Because lead has been stuck on the surface of C/Pb composite, the embedded structure suppresses the hydrogen evolution of lead-carbon anode and strengthens the connection between carbon additive and sponge lead.Compared with the blank anode, the lead-carbon anode with C/Pb composite displays excellent charge—discharge reversibility, which is attributed to the good connection between carbon additives and lead that has been stuck on the surface of C/Pb composite during the preparation process. The addition of C/Pb composite maintains a solid anode structure with high specific surface area and power volume, and thereby, it plays a significant role in the highly reversible lead-carbon anode. | Jian Yin Nan Lin Wenli Zhang Zheqi Lin Ziqing Zhang Yue Wang Jun Shi Jinpeng Bao Haibo Lin | 2018 | Journal of Energy Chemistry2018,27,6: | 6 |
| 18 | Flow mechanism between purge flow and mainstream in different turbine rim seal configurations显示文摘The rim seal is used to prevent mainstream ingestion to the gap between the vane of a turbine and its blade. In this article, the dolphin lip with a hook configuration and a large seal cavity with hook structures are designed based on the high-pressure turbine datum single shark lip rim seal configuration. The sealing effect and parameters of the flow field are measured by an experiment method and a numerical simulation is used to explain the mechanism. For three configurations,the effect of the leakage slot vortex on the efficiency of the seal and the influence of leakage vortex,generated by the interaction between purge flow and mainstream flow, are discussed in depth. The result shows that the reverse vortex formed by the dolphin lip rim seal with hook structure will increase the sealing efficiency. The seal configuration with a large cavity improves sealing efficiency to a greater extent than the datum structure. At different purge flow rates and with unequal seal structures, the purge flow produces three types of leakage vortices in the passage. Besides, the seal configuration with dolphin lip produces a Kelvin-Helmholtz instability at the interface of the purge and the mainstream flows at a low purge flow rate to induce new leakage vortex branches in the passage of the blade. | Ziqing ZHANG Yingjie ZHANG Xu DONG Xiao QU Xingen LU Yanfeng ZHANG | 2020 | Chinese Journal of Aeronautics2020,33,8: | 5 |
| 19 | D-amino acid substitution enhances the stability of antimicrobial peptide polybia-CP显示文摘 | Fengjing Jia Jiayi Wang Jinxiu Peng Ping Zhao Ziqing Kong Kairong Wang Wenjin Yan Rui Wang | 2017 | Acta Biochimica et Biophysica Sinica2017,49,10: | 5 |
| 20 | Stability and self-adaption character of turbulence coherent structure in narrow-deep river bend显示文摘In a meandering river,a certain scale of turbulent vortex dominates the development of river morphology,making the river bend with s particular curvature.This kind of vortex is denoted as 'bend-forming vortex'.The coordinated relationship of bend-forming vortex and meandering river channel is then known as 'self-adaption feature' of rivers.With these two concepts,this paper investigated the stability and self-adaption character of coherent vortex in the U-shape river bend with a constant curvature.On the basis of fluid mechanics theory and in consideration of turbulent coherent vortex as disturbance,the growth rate and the wave number response range of coherent vortex in meandering rivers with different curvatures were calculated in this paper.Moreover,the responses of different scales of coherent turbulence structure to river bend parameters were analyzed to explain the mechanism of river bend maintenance.These methods could provide a theoretical basis for further investigation on river meandering. | BAI YuChuan JI ZiQing XU HaiJue | 2012 | Science China(Technological Sciences)2012,55,11: | 5 |