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29篇 您的检索式:作者名="Guoping Xia"
    题名 作者 年代 出处 被引量
1Impact of the equivalent center of mass separating from the sliding surface on the isolation performance of friction pendulum bearings显示文摘A new equivalent center of mass model of FPBs(friction pendulum bearings) is introduced, and based on this model, coefficient j of the equivalent center of mass separating from the sliding surface is defined. It is thought in theory that j has a significant impact on the isolation parameter of FPBs, since the equivalent post-yielding stiffness and friction coefficients are not simply determined by sliding radius and sliding friction pairs. The results of numerical simulation analysis using ABAQUS conducted on two groups of FPBs support this viewpoint. For FPBs with the same sliding radius and sliding friction pairs, the FPB modules of structural analysis software such as ETABS could only distinguish the equivalent transformation using j one by one. The seismic response data obtained in a base isolation calculation example of FPBs are very different, which reveals that j's impact on the isolation effectiveness of FPBs cannot be ignored. The introduction of j will help improve the classical structural theory of FPBs and the weak points of structural analysis software based on this theory, which is important in achieving more accurate analyses in structural design.Xia Junyong Ning Xiangliang Tan Ping Hao Hongxiao Chen Guoping 2015Earthquake Engineering and Engineering Vibration2015,14,4:5
2Neural cell injury microenvironment induces neural differentiation of human umbilical cord mesenchymal stem cells显示文摘Jin Zhou Guoping Tia Jinge Wang Xiaoguang Luo Siyang Zhang Jianping Li Li Li Bing Xu FengZhu Xia Wang Chunhong Jia Weijin Zhao Danyang Zhao Aihua Xu 2012Neural Regeneration Research2012,7,34:3
3Neuroligin 3 R451C位点敲入小鼠前额叶皮层的gamma振荡紊乱导致其社交行为缺陷显示文摘文章简介自闭症,又称孤独症,是一种儿童先天性的严重神经发育性疾病,发病率约1%。由于自闭症的致病机制不明,因而也缺乏有效的临床治疗方法。本研究通过一个自闭症遗传模型小鼠,阐明了自闭症中引起社交缺陷的关键脑区及工作机制。曹蔚 林燊 Qiang-qiang Xia Yong-lan Du Qian Yang Meng-ying Zhang Yi-qing Lu Jing Xu Shu-min Duan Jun Xia Guoping Feng 许均瑜 罗建红 2019科学新闻2019,0,2:2
4Design and performance analysis of networked control systems with random delay显示文摘The design and performance analysis of networked control systems with random network delay in the forward channel is proposed,which are described in a state-space form.A new control scheme is used to overcome the effects of network transmission delay,which is termed networked predictive control(NPC).Furthermore,three different ways to choose control input are discussed and the performances are analyzed,respectively.Both real-time simulations and practical experiments show the effectiveness of the control scheme.Xia Yuanqing Fu Mengyin Liu Bo Liu Guoping 2009Journal of Systems Engineering and Electronics2009,20,4:2
5Fracture identification and evaluation using conventional logs in tight sandstones:A case study in the Ordos Basin,China显示文摘Fractures are of great significance to tight oil and gas development.Fracture identification using conventional well logs is a feasible way to locate the underground fractures in tight sandstones.However,there are three problems affecting its interpretation accuracy and practical application,namely weak well log responses of fractures,a lack of specific logs for fracture prediction,and relative change omission in log responses.To overcome these problems and improve fracture identification accuracy,a fracture indicating parameter(FIP)method composed of a comprehensive index method(CIM)and a comprehensive fractal method(CFM)is introduced.The CIM tries to handle the first problem by amplifying log responses of fractures.The CFM addresses the third one using fractal dimensions.The flexible weight parameters corresponding to logs in the CIM and CFM make the interpretation possible for wells lacking specific logs.The reconstructed logs in the CIM and CFM try to solve the second problem.It is noted that the FIP method can calculate the probability of fracture development at a certain depth,but cannot show the fracture development degree of a new well compared with other wells.In this study,a formation fracture intensity(FFI)method is also introduced to further evaluate fracture development combined with production data.To test the validity of the FIP and FFI methods,fracture identification experiments are implemented in a tight reservoir in the Ordos Basin.The results are consistent with the data of rock core observation and production,indicating the proposed methods are effective for fracture identification and evaluation.Shaoqun Dong Lianbo Zeng Wenya Lyu Dongling Xia Guoping Liu Yue Wu Xiangyi Du 2020Energy Geoscience2020,1,3:2
6KChIPI: a potential modulator to GABAergic system显示文摘从转基因的鼠标, immunoprecipitation 数据,基因表达式分析,和功能的 heterologous 表达式研究的引人注目的证据支持了 Kv 隧道交往的角色蛋白质(KChIPs ) 作为位于心脏的短暂外面的水流和 neuronal A 类型电流下面的 Kv4 (Shal ) 隧道的调节的人。到现在为止,有四个成员(KChIP14 ) ,在这个家庭识别。KChIP1 在大脑主要被表示,与在小脑,网状的 thalamic 原子核,中间的 habenular 原子核,马头鱼尾的怪兽,和 striatum 的 Purkinje 房间的相对丰富。我们从在 situ 杂交和 immunostaining 试金的结果表明 KChIP1 在与 GABAergic 禁止的神经原建议它的功能的关系的 parvalbumin 积极的神经原的 subpopulation 被表示。而且,从 KChIP1 缺乏的鼠标获得的结果证明那个 KChIP1 变化没损害幸存或改变全面大脑体系结构,在大脑开发对它的必要函数争论。然而,适用的 KChIP1 删除显示出的老鼠增加了危险性到 anti-GABAergic 起痉挛的药导致 pentylenetetrazole 的抓住,显示那 KChIP1 可能在 GABAergic 禁止的系统起枢轴的作用。Hui Xiong Kun Xia Benshang Li Guoping Zhao Zhuohua Zhang 2009Acta Biochimica et Biophysica Sinica2009,41,4:1
7Robust mixed H2/H= state-feedback control for continuous-time descriptor systems with parameter uncertainties 显示文摘XIA Yuanqing SHI Peng LIU Guoping 2005Circuits Systems Signal Processing2005,24,4:1
8Networked pre- dictive control of systems with random network delays in both for- ward and feedback channels显示文摘LIU Guoping XIA Yuanqing CHEN Jie 2007IEEE Transactions on Industrial Electronics2007,54,3:1
9An overview of utilization of steel slag显示文摘YI Huang XIA Guoping CHENG Huigao 2012Procedia Environmental Sci- ences2012,16,:1
10Three New Chromone Derivatives Produced by Phomopsis sp. HNY29-2B from Acanthus ilicifolius Linn.显示文摘三新 chromone 衍生物, phomochromenones 交流(1-3 ) ,和一已知的 chaetocyclinone B (4 ) 从 Phomopsis sp 的文化被获得。HNY29-2B 从红树属植物叶板 ilicifolius 悬崖孤立,它从华南海是镇定的。他们的结构被 1 D NMR 和 2 象集体分光镜的数据一样的 D NMR。1 和 2 的绝对配置被电子圆形的二色性(ECD ) 的量化学药品计算分配系列。化合物 3 是拥有唯一的 chromeno 的碱的第三个例子[3,2-c ] pyridine 原子核。在 bioactivity 试金,化合物 4 与 8.13 和 3.59 污穹摥 ? 穩牯歯? 效正愠摮匠穵歵? 楍慹牵 ? 牣獯 ? 潣的 IC 50 价值对人的前列腺癌症房间线(PC-3 和 DU145 房间) 显示出 cytotoxicity 吗?Bo Ding Zhiyuan Wang Guoping Xia Xishan Huang Fang Xu Wenrui Chen Zhigang She 2017Chinese Journal of Chemistry2017,35,12:1
11A fleible cooperative spectrum sensing scheme for cognitive radio networks 显示文摘Xia Hongxing Zhang Guoping Xu Hongbo 2011IEICE Electronics Express2011,8,8:1
12Sta- bilization analysis and implementation for MIMO NCSs with time-varying delays显示文摘Yuanqing Xia Xiaopeng Liu Guoping Liu David Rees 2011International journal of adaptive con- trol and signal processing2011,,25:1
13Fabrication and characterization of free-standing polypyrrole/graphene oxide nanocomposite paper显示文摘Lanyan Li Keqiang Xia Liang Li Songmin Shang Qingzhong Guo Guoping Yan 2012Journal of Nanoparticle Research2012,,6:1
14Design and Stability Criteria of Networked Predictive Control Systems with Random Network Delay in the Feedback Channel显示文摘Liu Guoping Xia Yuanqing Rees D 2007I1EEE Transactions on Systems Man and Cybernetics2007,37,2:1
15Investigations of entrainment characteristics and shear-layer vortices evolution in an axisymmetric rear variable area bypass injector显示文摘In this study,firstly,for the axisymmetric RVABI,the change-rule of adverse pressure gradient caused by radial velocity during the transition of internal flow mode in variable geometry is summarized,and a Bypass Ratio(BR) iterative algorithm based on the empirical correlation of non-equilibrium pressure is proposed.The algorithm can estimate the nonlinear relationship between area ratio and BR,with an error range falling below 6.5%.Then,we discuss the favorable effect of uniform mixing on the thrust augmentation of mixed exhaust under variable BR conditions.From this point of view,the characteristics of vortices evolution in different shear strength jets are compared,to clarify the effect of variable cycle parameters on jet mixing.As the results suggest,when ■ is as low as 0.22,the K-H disturbance is of high-frequency wavelet property,and it is difficult to induce large-scale spanwise vortices.The macro migrations of fluid elements in span wise vortices and the diffusion effect caused by edge tearing is weak,which is not conducive to the energy exchange between the two streams.However,the low ■ jet will also correspondingly weaken the viscous dissipation effect of vortices.It is concluded that the dissipation level is proportional to the 2.31 power of the ■.Guoping HUANG Chao LI Chen XIA Qian LI 2022Chinese Journal of Aeronautics2022,35,4:1
16Foc-using ultrasonic field of holed cap spherical shell transducer using the spheroidal beam equation显示文摘XIA Rongmin SHOU Wende CHEN Guoping 2002CHIN PHYS LETT2002,19,30:1
17Networked Predic- tive Control of Systems with Random Network Delays in Both For- ward and Feedback Channels 显示文摘Liu Guoping Xia Yuanqing Chen Jie 2007IEEE Transactions on Industri- al Electronics2007,54,3:1
18A neural network model based on the multi-stage optimization approach for short-term food price forecasting in China显示文摘 Xia Guoping Yang Fangting 2007Expert Systems with Applications2007,33,:1
19In-situ stress state in the China’s Sea and adjacent areas显示文摘Jianli Gao Jianmin Ding Guoping Liang Dahuang Xia Qiliang Guo 1992Acta Seismologica Sinica1992,,3:1
20In-situ stress state in the China’s Sea and adjacent areas显示文摘Jianli Gao Jianmin Ding Guoping Liang Dahuang Xia Qiliang Guo 1992Acta Seismologica Sinica1992,,3:1
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