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15篇 您的检索式:作者名="Chenghui XU"
    题名 作者 年代 出处 被引量
1An overview of design for CSNS/RCS and beam transport显示文摘The China Spallation Neutron Source (CSNS) is the first accelerator-based pulsed neutron source in China. Its accelerators are made up of an 80 MeV H- linac, a Rapid Cycling Synchrotron (RCS) and two beam transport lines. RCS accumulates and accelerates protons to the design energy of 1.6 GeV, and extracts high energy beam to strike the target. The overview of RCS is presented, and the key problems of the physics design are discussed. The two beam transport lines, from linac to RCS and from RCS to the target, are also introduced.WANG Sheng AN YuWen FANG ShouXian HUANG Nan LIU WeiBin LIU YuDong QIN Qing QIU Jing WANG Na XU Gang XU ShouYan YU ChengHui 2011Science China(Physics,Mechanics & Astronomy)2011,54,S2:11
2A Preliminary Review of Metallogenic Regularity of Gold Deposits in China显示文摘Gold is one of the most important mineral resources in China with its rich mineral resources. In recent years,significant progress has been made on the process of gold resource exploration. Some large and giant gold deposits were newly found and some important expansions in the main mining regions were also been completed. Studies on metallogenic regularity of gold deposits in China also have made achievements with a long–term work. This review aims to conclude the achievements of research on gold metallogenic regularity in China. Based on the data of about 2000 gold deposits and other ore(mineralized) occurrences,gold deposits in China were classified into five prediction types: gold deposits genetically related to granite–greenstone formation,gold deposits related to sedimentary formation(including the Carlin type and the metamorphosed clastic rock related vein gold deposit),gold deposits genetically related to volcanic rocks(including the continental and marine types),gold deposits genetically related to intrusions(including the porphyry type and the inner intrusion and contact zone related gold deposit),gold deposits of supergenesis(including fracture zone–altered rock gold deposit,placer gold deposit,gossan type gold deposit and soil type gold deposit). Statistics on precise chronology data of gold deposits indicate that there occurred 5 main periods of gold–mineralization in geological history of China. They were Neoarchean to Paleoproterozoic,Meso–Neoproterozoic,Paleozoic,Mesozoic,and Cenozoic. Gold deposits in China mainly formed in the Mesozoic and the Cenozoic. On the studies of the spatial–temporal distribution characteristics of gold deposits,53 gold–forming belts were delineated in China. The metallogenic regularity of gold deposits was preliminarily summarized and 71 gold metallogenic series were proposed in China. This suggests that it is necceary to deepen the study on metallogenic regularity of gold deposits and to provide the theory guide for the ore–prospecting for gold resources in China.WANG Chenghui WANG Denghong XU Jue YING Lijuan LIU Lijun LIU Shanbao 2015Acta Geologica Sinica(English Edition)2015,89,2:4
3Adenovirus-mediated co-expression of ING4 and PTEN cooperatively enhances their antitumor activity in human hepatocellular carcinoma cells显示文摘在染色体 10 上删除的生长 4 的禁止者(ING4 )(PTEN ) 和磷酸酶和 tensin 相当或相同的事物作为是的肿瘤 suppressors 众所周知仔细与肿瘤出现和前进有关。ING4 和 PTEN 在鼻咽的癌房间显示出 synergistic antitumor 活动,这被报导。二肿瘤 suppressors 在生长抑制和 apoptosis 激活上表明了 synergistic 效果。在这研究,我们在 hepatocellular 癌调查了他们的治疗学的潜力 ?(HCC ) 房间。Recombinant 侵入人体气管粘膜的病菌共同表示 ING4 和 PTEN (Ad-ING4-PTEN ) 被构造,并且 SMMC-7721 和 HepG2 HCC 房间上的 antitumor 效果被评估。Ad-ING4-PTEN 合作地禁止了房间生长,刺激了 apoptosis,并且压制了在 HCC 房间,和在 SMMC-7721 的调整房间周期的侵略。进一步的研究证明由 Ad-ING4-PTEN 的 ING4 和 PTEN 的联合合作地提高了房间的表示的改变周期相关的蛋白质( p53 , p21 ,和 cyclin D1 )和 apoptotic 因素(坏, Bcl-2 , Bcl-XL ,和 Bax ),它涉及房间周期的规定和 apoptotic 小径的激活,导致 synergistic antitumor 效果。这些结果显示 ING4 和 PTEN 的联合可以为 HCC 提供有效治疗学的策略。Nargis Rakshit Sijun Yang Wei Zhou Yi Xu Chenghui Deng Jiecheng Yang Huijun Yu Wenxiang Wei 2016Acta Biochimica et Biophysica Sinica2016,48,8:2
4Pyrolysis behavior of pectin under the conditions that simulate cigarette smoking显示文摘Shun Zhou Yingbo Xu Chenghui Wang Zhenfeng Tian 2011Journal of Analytical and Applied Pyrolysis2011,,1:1
5Efficient end-pumped Q-switched 1053 nm Nd:YLF laser with a plane parallel resonator显示文摘Xu Shan Wei Yong Huang Chenghui 2012Opt Commun2012,285,6:1
6The pyrolysis of cigarette paper under the conditions that simulate cigarette smouldering and puffing显示文摘Zhou Shun Wang Chenghui Xu Yingbo 2011J Therm Anal Calorim2011,104,3:1
7Research on intelligent controller of wind-power yaw based on modulation of artificial neuro-endocrine-immunity system显示文摘Zhu Chenghui Li Pengju Wang Jianping Xu Xiaobing 2011Procedia Engineering2011,,:1
8Experimental study on the thermal decomposition of 2H-heptafluoropropane显示文摘Yonghua Hu Yingbo Xu Tianfang Wang Chenghui Wang Shufen Li 2010Journal of Analytical and Applied Pyrolysis2010,,1:1
9Equilibrium electron beam parameters of the High Energy Photon Source显示文摘Purpose The physics design of the High Energy Photon Source(HEPS)was finished after many times of iteration.Hereby,the typical equilibrium electron beam parameters corresponding to the proposed two baseline operation modes in the baseline design of HEPS are presented.Methods To compute the equilibrium parameters of the electron beam,the lattice parameters,RF parameters,and the parameters of the insertion devices(IDs)were determined first.Furthermore,it is more precise to use the full-current electron beam parameters in the estimations of the performance of the synchrotron light.Therefore,not only the single-particle dynamics but also the current-dependent collective effects need to be considered in the computations of the full-current,equilibrium parameters of the electron beam.Both analytic computations and multi-particle tracking simulations were carried out.Results The full-current,equilibrium parameters of the electron beams in the HEPS storage ring are presented in this paper.Moreover,the main beam parameters in the injector(the booster and the LINAC),corresponding to the two baseline operation modes of the storage ring,are also presented.Conclusion The typical electron beam parameters corresponding to the two baseline operation modes are given in detail in this paper.Haisheng Xu Cai Meng Yuemei Peng Saike Tian Na Wang Xiaohao Cui Chongchong Du Zhe Duan Yuanyuan Guo Ping He Xiyang Huang Daheng Ji Hongfei Ji Yi Jiao Jingyi Li Nan Li Xiaoyu Li Xiaohan Lu Pengfei Liang Weimin Pan Huamin Qu Bin Wang Jiuqing Wang Yuanyuan Wei Jinyu Wan Gang Xu Fang Yan Chenghui Yu Sen Yue Xiang Zhang Yaliang Zhao 2023Radiation Detection Technology and Methods2023,7,2:0
10Study on fluid inclusions of Qiangsheng gold deposit in Fushun of Liaoning显示文摘The Qiangsheng gold deposit belongs to quartz vein type. The fluid inclusions consist of four types:aqueous single-phase inclusions,aqueous two-phase inclusions,carbonated two-phase inclusions and carbonated three-phase inclusions. The fluid inclusions are characterized by low salinity( 5%-9% Na Cl eqv),low density( 0. 66--0. 72 g / cm^3) and medium temperature( 210℃--250℃). The pressure of ore-forming is 60--95 MPa and the metallogenic depth is about 5. 49--7. 56 km. During the mineralizing process,ore-forming fluid underwent fluid unmixing in CO_2-H_2O-Na Cl system. The stable isotope results indicate that the ore-forming fluids mainly generated from mantle,with the participation of a small amount of atmospheric water. Comprehensive studies have suggested that Qiangsheng gold deposit belongs to the type of mesothermal hydrotherm with mantlederived fluid participating in mineralization.CHEN Yang WANG Li ZHANG Yajing XU Chunliang JU Mingshen LIU Kuoliang LI Qiang SUN Dexiang ZHAO Chenghui 2015Global Geology2015,18,4:0
11Fracture analysis of magnetoelectroelastic bimaterials with imperfect interfaces by symplectic expansion显示文摘A Hamiltonian-based analytical method is used to study the mode Ⅲ interface cracks in magnetoelectroelastic bimaterials with an imperfect interface. By introducing an unknown vector, the governing equations are reformulated in sets of first-order ordinary differential equations. Using separation of variables, eigensolutions in the symplectic space are obtained. An exact solution of the unknown vector is obtained and expressed in terms of symplectic eigensolutions. Singularities of mechanical, electric, and magnetic fields are evaluated with the generalized intensity factors. Comparisons are made to verify accuracy and stability of the proposed method. Numerical examples including mixed boundary conditions are given.Xinsheng XU Zhenzhen TONG Dalun RONG Xianhe CHENG Chenghui XU Zhenhuan ZHOU 2017Applied Mathematics and Mechanics(English Edition)2017,38,8:0
12Determination of the orthometric height difference based on optical fiber frequency transfer technique显示文摘The development of remote frequency transfer techniques,especially the appearance of optical clocks with unprecedented stability,has prompted geoscientists to study their applications in geodesy.Using remote frequency transfer technique,by frequency comparison of two optical clocks at two points P and Q connected by optical fibers,one can measure the signal’s frequency shift between them,and the geopotential difference between them can be determined based on the gravity frequency shift equation.Given the orthometric height of P,the orthometric height of Q can be determined.Since the present stability of the optical clock has achieved 1×10^(-18) or better and comparing the frequency transfer via optical fiber provides stability at 10^(-19) level,the optical clock network enables determining the orthometric height at centimeter-level.This study provides a formulation to determine the height diffe rence at one-centimeter level between two points on the ground based on the optical fiber frequency transfer technique.Anh The Hoang Ziyu Shen Wen Bin Shen Chenghui Cai Wei Xu An Ning Yifan Wu 2021Geodesy and Geodynamics2021,12,6:0
13Trimetallic Metal-Organic Framework Nanoframe Superstructures: A Stress-Buffering Architecture Engineering of Anode Material toward Boosted Lithium Storage Performance显示文摘Metal-organic frameworks(MOFs)can serve as prevailing anodes for lithium-ion batteries,due to their multiple redox-active sites and prominent structural compatibility.However,the poor electronic conductivity and inferior cyclability hinder their further implementation.Herein,a synthetic methodology for trimetallic Fe-Co-Ni MOFs with nanoframe superstructures architecture(Fe-Co-Ni NFSs)via structural evolution is proposed for versatile anode materials for lithium storage.Ascribed to optimal compositional and structural optimization,the Fe-Co-Ni NFSs achieve exceptional electrochemical performance with superior specific capacity(1030 mAh g^(−1) at 0.1 A g^(−1)),outstanding rate capacity(414 mAh g^(−1) at 2 A g^(−1)),and prolonged cyclability(489 mAh g^(−1) upon 1000 cycles at 1 A g^(−1)).Both experimental and theoretical investigations reveal that the multi-component metal centers could boost electronic conductivity,confer multiple active sites,and energetically favor Li adsorption capability.Additionally,the nanoframe superstructures of Fe-Co-Ni NFSs could facilitate stress-buffering effect on volumetric expansion and prevent electrode pulverization,further improving the lithium storage capability.This work envisions a meticulous protocol for high-performance MOF anode materials for lithium-ion batteries.Jia Lin Chao Xu Man Lu Xiaoming Lin Zeeshan Ali Chenghui Zeng Xuan Xu and Yifan Luo 2023Energy & Environmental Materials2023,6,1:0
14Intrinsically Viscoelastic Supramolecular Conjugated Polymer toward Suppressing Coffee-Ring Effect显示文摘The rational molecular design of light-emitting conjugated polymers that inherently suppress the ubiquitous coffee-ring effect(CRE)is a great challenge and the critical bottleneck for printing displays.Herein,we describe a supramolecular route to construct an intrinsically viscoelastic rigid conjugated polymer(RCP)(PHDPF-Cz)toward avoiding the CRE without sacrificing optoelectronic properties.Theπ-πstacking interactions derived fromthe pendant carbazole(Cz)units enable PHDPF-Cz to self-assemble into criss-cross nanofibers and endow its solutionwith great viscosity.Consequently,a high-quality and continuous PHDPFCz film was obtained by impeding the transport of aggregates to the droplet edge due to outward capillary flow during evaporation,in sharp contrast to the random aggregate migration and rapid precipitation generated fromthe controlled poly[4-(6-(9H-diphenylaniline-9-yl)hexyloxy)-9,9-diphenylfluorene]-co-[5-(6-(9H-diphenylaniline-9-yl)hexyloxy)-9,9-diphenylfluorene]and poly(9,9-dioctylfluorene)solutions.Finally,an efficient random laser is also achieved based on these cross-linked films with ultrastable single-chain excitonic behavior,confirming the effectiveness of our design strategy.Yamin Han Lubing Bai Xiang An Man Xu Chuanxin Wei Zongqiong Lin Mengna Yu Jinyi Lin Lili Sun Ning Sun Changting Wei Linghai Xie Xuehua Ding Qi Wei Chengrong Yin Chenghui Li Wenming Su Wei Huang 2022CCS Chemistry2022,4,11:0
15Translational research on novel drug-eluting stents in percutaneous coronary intervention显示文摘Although first-generation drug-eluting stents(DES)have markedly reduced restenosis,complications of late and very late in-stent thrombosis have emerged as prime limitations to this technology.The development of new DES is a key process to prevent these complications.Translational research plays a very important role in experiments which determine the safety and efficacy of DES before human clinical trials.The present review focuses on translational research of novel DES,including drug discovery,creation of preclinical research models,planning and conducting of first-in-man studies,and developing next-generation DES systems.Yaling Han Kai Xu Chenghui Yan 2011Frontiers of Medicine2011,5,4:0
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