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35篇 您的检索式:作者名="Huai SHI"
    题名 作者 年代 出处 被引量
1Numerical simulation of GPS observed clockwise rotation around the eastern Himalayan syntax in the Tibetan Plateau显示文摘From Global Position System(GPS) measurements,there is a clockwise rotation around the eastern Himalayan syntax in the Tibetan Plateau.This phenomenon is difficult to be interpreted by simple two-dimensional modeling from a geodynamic point of view.Because of the extremely thick crust and the lower crust with relatively high temperature in the Tibetan Plateau,the lithospheric rheology in Tibet and surrounding areas present a complex structure.In general,the tectonic structure of the Tibetan Plateau consists of brittle upper crust,ductile lower crust,high viscosity lithospheric upper mantle,and low viscosity asthenosphere,the same as the case in many other continental regions.However,the lower crust in the Tibetan Plateau is much more ductile with a lower viscosity than those of its sur-roundings at the same depth,and the effective viscosity is low along the collision fault zone.In this study,we construct a three-dimensional Maxwell visco-elastic model in spherical coordinate system,and simulate the deformation process of the Tibetan Plateau driven by a continuous push from the Indian plate.The results show that the existence of the soft lower crust under the plateau makes the entire plateau uplift as a whole,and the Himalayas and the eastern Himalayan syntax uplift faster.Since the lower crust of surrounding blocks is harder except in the southeastern corner where the high-temperature material is much softer and forms an exit channel for material transfer,after the whole plateau reaches a certain height,the lower crustal and upper mantle material begins to move eastward or southeastward and drag the upper crust to behave same way.Thus,from the macroscopic point of view,a relative rigid motion of the plateau with a clockwise rotation around the eastern Himalayan syntax is developed.CAO JianLing SHI YaoLin ZHANG Huai WANG Hui 2009Chinese Science Bulletin2009,54,8:23
2Multipliers on Dirichlet Type SpacesPeng Yan HU Department of Mathematics. Normal College of Shenzhen University. Shenzhen. Guangdong 518060. P. R. China Ji Huai SHI Department of Mathematics. University of Science and Technology of China. Hefei. Anhui 230026, P. R. China 2001Acta Mathematica Sinica,English Series2001,17,2:23
3Finite element investigation of the poroelastic effect on the Xinfengjiang Reservoir-triggered earthquake显示文摘Coulomb failure stress changes (ΔCFS) are used in the study of reservoir-induced seismicity (RIS) generation.The threshold value of ΔCFS that can trigger earthquakes is an important issue that deserves thorough research.The M s 6.1 earthquake in the Xinfengjiang Reservoir in 1962 is well acknowledged as the largest reservoir-induced earthquake in China.Therefore, it is a logical site for quantitative calculation of ΔCFS induced by the filling of the reservoir and for investigating the magnitude of CFS that can trigger reservoir seismic activities.To better understand the RIS mechanism, a three-dimensional poroelastic finite element model of the Xinfengjiang Reservoir is proposed here, taking into consideration of the precise topography and dynamic water level.We calculate the instant changes of stress and pore pressure induced by water load, and the time variation of effective stresses due to pore water diffusion.The CFS on the seismogenesis faults and the accumulation of strain energy in the reservoir region are also calculated.Primary results suggest that the reservoir impoundment increases both pore pressure and CFS on the fault at the focal depth.The diffusion of pore pressure was likely the main factor that triggered the main earthquake, whereas the elastic stress owing to water load was relatively small.The magnitude of CFS on seismogenesis fault can reach approximately 10 kPa, and the ΔCFS values at the hypocenter can be about 0.7-3.0 kPa, depending on the fault diffusion coefficient.The calculated maximum vertical subsidence caused by the water load in the Xinfengjiang Reservoir is 17.5 mm, which is in good agreement with the observed value of 15 mm.The accumulated strain energy owing to water load was only about 7.3×10 11 J, even less than 1% of the seismic wave energy released by the earthquake.The reservoir impoundment was the only factor that triggered the earthquake.CHENG HuiHong ZHANG Huai ZHU BoJing SUN YuJun ZHENG Liang YANG ShaoHua SHI YaoLin 2012Science China Earth Sciences2012,55,12:11
4Spectral element analysis on the characteristics of seismic wave propagation triggered by Wenchuan M_s8.0 earthquake显示文摘The 2008 Wenchuan earthquake occurred in an active earthquake zone, i.e., Longmenshan tectonic zone. Seismic waves triggered by this earthquake can be used to explore the characteristics of the fault rupture process and the hierarchical structure of the Earth's interior. We employ spectral element method incorporated with large-scale parallel computing technology, to investigate the characteristics of seismic wave propagation excited by Wenchuan earthquake. We calculate synthetic seismograms with one-point source model and three-point source model respectively. The AK135 model is employed as a prototype of our numerical global Earth model. The Earth's ellipticity, Earth’s medium attenuation, and topography data are taken into consideration. These wave propagation processes are simulated by solving three-dimensional elastic wave governing equations. Three-dimensional visualization of our numerical results displays the profile of the seismic wave propagation. The three-point source, which is proposed from the latest investigations through field observation and reverse estimation, can better demonstrate the spatial and temporal characteristics of the source rupture process than the one-point source. We take comparison of synthetic seismograms with observational data recorded at 16 observatory stations. Primary results show that the synthetic seismograms calculated from three-point source agree well with the observations. This can further reveal that the source rupture process of Wenchuan earthquake is a multi-rupture process, which is composed by at least three or more stages of rupture processes.YAN ZhenZhen ZHANG Huai YANG ChangChun SHI YaoLin 2009Science China Earth Sciences2009,52,6:9
5Dynamic simulation of interactions between major earthquakes on the Xianshuihe fault zone显示文摘The authors firstly evaluate the strain accumulation rate of the Xianshuihe fault zone based on earth- quake activity. We calculated the stress and seismic moment accumulation rate for each subsection of the Xianshuihe fault zone based on the distribution of geological slip rate and GPS survey results. According to the results, we get the recurrence intervals of characterized earthquakes on each sub- section respectively. A three-dimensional finite element model for western Sichuan is constructed to discuss the earthquakes triggering among major earthquakes (M>6.7) that occurred along the Xianshuihe fault zone since 1893. The calculated Coulomb failure stress changes (ΔCFS) show that 5 of the 6 earthquakes with Ms>6.7 were triggered by positive ΔCFS. The interactions between major earthquakes not only influence recurrence intervals of characterized earthquakes on each subsection, but also change recurrence behavior of major earthquakes along the whole fault zone.WANG Hui LIU Jie SHI YaoLin ZHANG Huai ZHANG GuoMin 2008Science China Earth Sciences2008,51,10:8
6Design of Environmental Monitoring and Control System for Large-scale Pig House with Fermentation Bed显示文摘The design and assembly of environmental monitoring and control system for large-scale pig house with fermentation bed helped to solve the problem of environmental automatic control in piggery.The sensors would monitor the temperature,humidity,light,wind direction,wind speed,CO2,NH3and other parameters.On-line real-time data collection was achieved.The expert system was constructed to control the temperature in piggery below 30℃,to control the air and mattress humidities higher than 65%.Under the conditions of different season or different wind speed,even in day and night,the control actuators were different.The actuators included fanning wet curtain,lighting,micro spraying,spraying,propeller fan,electric aluminum alloy shutter and spraying systems on the roof.The actuators were integrated,and they control the piggery environment simultaneously.The system also designed the remote video monitor interface,parameter-monitoring curved interface and operation interface,which provided a good man-machine interface.Bo LIU Huiyong ZHENG Yingzhi LIN Shengbing LIU Hongyi ZHENG Chunzhong YOU Huai SHI Jianglin LAN Zhaolong LI Jianyang TANG Qinlou HUANG 2015Agricultural Science & Technology2015,16,2:6
7Numerical simulation of March 11,2011 Honshu,Japan tsunami显示文摘In order to predict tsunami hazards through numerical simulation,by using the focal mechanisms as well as fault parameters of Japan's 2011 Tohoku Earthquake provided by National Geological Survey(referred to as USGS),we proposed a numerical model to simulate the Honshu,Japan tsunami.Numerical computing is conducted to investigate the security along the coast.We also analyzed the simulation results and distribution of tsunami disaster,trying to achieve a more reasonable tsunami warning program.Our numerical model is composed of simulation of surface deformation after the earthquake and the tsunami propagation process which is based on two dimensional shallow water equations.The simulation results show the characteristics of the tsunami propagation,and arrival times on recorder points are consistent with tsunami observation.This model can be applied to evaluate the security of the coastal area and obtain more accurate tsunami warning.JING HuiMin ZHANG Huai WU ZhongLiang YUEN David A SHI YaoLin 2012Chinese Science Bulletin2012,57,27:3
8Numerical investigation on the geodynamical mechanism of the first major shock of 2006 Pingtung M_w7.0 earthquake显示文摘A strong Mw7.0 earthquake struck Pingtung offshore of Taiwan on December 26,2006.It consisted of two major events with an 8-minute interval.The first major shock occurred at 12:26 UTC.Focal mechanism results from Harvard,USGS,and BATS all indicated that the first major shock was a normal fault earthquake and the second one was dominated by strike-slip offsets.The location of the epicenter varied greatly in depth in different analyses.The latest results showed that the focal depth of the first shock was most probably around 40-44 km,placing the epicenter in the lithospheric mantle.However,this is not a location where earthquakes usually occur.To explore the geodynamical mechanism of this event,we carried out 2D finite element method(FEM) numerical experiments.Our primary results indicate that the geodynamical background,as well as the formation of Pingtung earthquake,is a consequence of the collision between Luzon arc and Chinese continental margin.Although Taiwan Island is in the shadow of NW-SE trending compressive collision zone,the existence of ductile lower crust leads to the decoupling between upper crust and lithospheric mantle.As lithospheric mantle subducts to the depth of around 250 km,the upper part of the bending subduction slab puts itself in an extensional state.The extensional stress from bending induced the occurrence of this normal fault earthquake at the critical point.SUN YuJun ZHANG Huai SHI YaoLin 2011Science China Earth Sciences2011,54,5:2
9Finite element analysis of steep excavation slope failure by CFS theory显示文摘The distribution of Coulomb failure stress (CFS) change in the steep excavation slope is calculated by finite element method in this paper,and the failure mechanics under different conditions have been investigated.Comparing the CFSs before and after the slope excavation (stress loading and unloading processes),the dangerous internal zone and the most likely failure external area are attained.Given the shear cracks on the top surface while tensile stress or cracks along the toe of the slope,we analyze the high cutting-angle steep slope in Kaixian county of the Three Gorges Reservoir region.We bring forward that the peak value of CFS after excavation can reach to the order of 0.1MPa,which is greatly higher than that of before.Our preliminary results are useful for optimizing the reinforcement structure during the steep slope stabilization engineering.Huihong Cheng Huai Zhang Bojing Zhu Yaolin Shi 2012Earthquake Science2012,25,2:2
10Nontoxic engineered virus nanofibers as an efficient agent for the prevention and detection of fungal infection显示文摘Candida albicans (C。albicans ) 感染让高死亡在 immunocompromised 病人评价。由于当前的诊断系统的无效和对 candidiasis 的准许的疫苗的缺席, C 的预防。albicans 感染仍然是挑战。C。albicans 感染能被藏匿反的 aspartyl 朊酶评估并且阻止 2 抗体(anti-Sap2 IgG ) 和 Hsp90 抗体(anti-Hsp90 IgG ) 。在这研究,为诊断和 C 的预防的改进探索一个新代理人。albicans 感染,设计 fd 抗菌素,被认为对人安全的病毒 nanofiber,与二被设计并且准备能导致并且捕获 anti-Sap2 IgG 和 anti-Hsp90 IgG 的 epitopes。双显示的噬菌体作为一根新奇俘获探针被采用开发一个新连接酶的 immunosorbent 试金( ELISA )方法,它显著地 recombinant 蛋白质 Sap2 在被用作涂层抗原捕获特定的抗体( rSap2-ELISA )的 ELISA 和 recombinant 蛋白质 Hsp90 在被用作涂层抗原捕获特定的抗体( rHsp90-ELISA )的 ELISA 与那些相比改进了察觉率。另外, nanofibers 充当了一支潜在的疫苗使老鼠,以及 recombinant 蛋白质免疫,更高效地调停了体液、细胞的有免疫力的回答, C 的减少的层次。albicans 殖民,并且在 C 增加了幸存率。感染 albicans 的老鼠。因此,双显示的 nanofiber 被显示了是为保护对的一个强大的 bifunctional 代理人的噬菌体和临床的感染的敏感察觉,它有潜力广泛地在生命科学,临床的药,和环境科学被过去常。Yicun Wang Hongxi Shi Shuai Dong Yan Li Meng Wang Yanyan Huai Xintong Zhang Xi Chen Chuanbin Mao Xiang Gao Li Wang 2018Nano Research2018,11,4:2
11Synthesis of LiFePO4/C cathode material from ferric oxide and organic lithium salts 显示文摘Shi Zhongqi Huang Ming Huai Yongjian 2011Eleetrochim Acta2011,56,11:1
12An enriched environment reduces hippocampal inflammatory response and improves cognitive function in a mouse model of stroke显示文摘An enriched environment is used as a behavio ral intervention therapy that applies sensory,motor,and social stimulation,and has been used in basic and clinical research of va rious neurological diseases.In this study,we established mouse models of photothrombotic stroke and,24 hours later,raised them in a standard,enriched,or isolated environment for 4 weeks.Compared with the mice raised in a standard environment,the cognitive function of mice raised in an enriched environment was better and the pathological damage in the hippocampal CA1 region was remarkably alleviated.Furthermore,protein expression levels of tumor necrosis factor receptor-associated factor 6,nuclear factorκB p65,interleukin-6,and tumor necrosis factorα,and the mRNA expression level of tumor necrosis factor receptor-associated factor 6 were greatly lower,while the expression level of miR-146a-5p was higher.Compared with the mice raised in a standard environment,changes in these indices in mice raised in an isolated environment were opposite to mice raised in an enriched environment.These findings suggest that different living environments affect the hippocampal inflammatory response and cognitive function in a mouse model of stro ke.An enriched environment can improve cognitive function following stroke through up-regulation of miR-146a-5p expression and a reduction in the inflammatory response.Hong-Yu Zhou Ya-Ping Huai Xing Jin Ping Yan Xiao-Jia Tang Jun-Ya Wang Nan Shi Meng Niu Zhao-Xiang Meng Xin Wang 2022Neural Regeneration Research2022,17,11:1
13Synthesis and mesomorphic properties of fluorinated Schiff's base liquid crystals containing vinyl end groups显示文摘Three kinds of fluorinated Schiff’s base esters, 4-allyloxy-2-X-6-X-benzoic acid 4-[(2, 3, 4-trifluorophenylimino)-methyl]phenyl ester, where X=H or F, were synthesized and characterized. Their chemical structures were identified by Fourier transform infrared spec-troscopy (FTIR) and 1H nuclear magnetic resonance (1H NMR). Their mesomorphic properties were studied by polarized optical mi-croscopy (POM) and differential scanning calorimetry (DSC). It was found that all the three compounds exhibited enantiotropic nematic phases only. And their clearing point temperature and thermal range of mesophase decreased with the number of fluorine atoms on the rigid core of the compounds; while their melting point temperature showed no distinct regularity.Qiang Wei Siquan Zhu Lin Shi Lipei Zhang Xiaotao Yuan Hui Cao Huai Yang 2007Journal of University of Science and Technology Beijing2007,14,4:1
14Diurnal Temperature Range and Daily Emergency Room Admissions among the Elderly in Beijing,China显示文摘In recent years,more attentions have been paid to the association between climate change and human health.Increasing and more variable global surface temperature is one of the key climatic change factors which have been consistently reported about the effect on human health.So far,moreTENG Huai Jin ZHEN Shan WANG Min Zhen LI Bei YIN Ling LI Jing Xin WANG Shi Gong ZHOU Zhong Yu QIU Hong Yan LI Tan Shi 2013Biomedical and Environmental Sciences2013,26,10:1
15Numerical analysis on thermal conductivity of poly-mineral rock显示文摘In order to explore the thermal conductivity of the natural poly-mineral rock,numerical tests of rock models with randomly-distributed components were conducted and compared with each other.Elaborately designed Monte Carlo method was adopted to ingratiate the requirement of the random characteristics of grain size and the grains'spatial distribution.This requirement was fulfilled by clustering the randomly generated unstructured tetrahedral elements in full three dimensions.Natural rocks are consisted of randomly distributed crystal particles or intergranular minerals.Our primary results verify that the thermal conductivity of the rock is strongly sensitive to the ingredients' volume fraction and their spatial distribution.Furthermore,we proved that,in order to reduce the measurement error to a reasonable range,the numerical specimen must be large enough or include sufficient number of mineral particles.Our numerical test results are in accordance with a variety of empirical formulas which are currently employed in petrology.Huimin Jing Xiangwei Yu Huai Zhang Yaolin Shi 2010Earthquake Science2010,23,3:1
16Clinicopathological Characteristics and Her-2/neu Status in Chinese Patients with Uterine Papillary Serous Carcinoma显示文摘Yulan Ren Huaying Wang Xiaoyan Zhou Wentao Yang Xiaowei Huang Yongming Lu Daren Shi L. Gebrim L. B. Twiggs 2010ISRN Obstetrics and Gynecology2010,,:1
17Qinghai-tibetan plateau peatland sustainable utilization under anthropogenic disturbances and climate change显示文摘Often referred to as the“Third Pole,”China’s Qinghai-Tibetan Plateau developed large amounts of peatland owing to its unique alpine environment.As a renewable resource,peat helps to regulate the climate as well as performing other important functions.However,in recent years,intensifying climate change and anthropogenic disturbances have resulted in peatland degradation and consequently made sustainable development of peatland more difficult.This review summarizes peatland ecological and economic functions,including carbon sequestration,biodiversity conservation,energy supplies,and ecotourism.It identifies climate change and anthropogenic disturbances as the two key factors attributing to peatland degradation and ecosystem carbon loss.Current problems in environmental degradation and future challenges in peatland management under the effects of global warming are also discussed and highlighted.Gang Yang Changhui Peng Huai Chen Faqin Dong Ning Wu Yanzheng Yang Yao Zhang Dan Zhu Yixin He Shengwei Shi Xiaoyang Zeng Tingting Xi Qingxiang Meng Qiuan Zhu 2017Ecosystem Health and Sustainability2017,3,3:1
18Study on excitation of the two-tone acoustic characteristic of the chime bell of Marquis Yi of Zeng by finite element method显示文摘The bronze chime bells of Marquis Yi of Zeng are precious cultural relics of China. The bells have a two-tone acoustic characteristic,i.e.,striking different parts of the bell generates different tones. In this study,we use a finite element method to simulate the propagation of elastic waves and the generation of free oscillations of the bell. Vibrations with different spectral characteristics can be obtained by striking different parts of the chime bell of Marquis Yi of Zeng. By the observation of the vibration de-sign and through spectral analysis,we further help the understanding of the two-tone acoustic char-acteristic of the chime bell of Marquis Yi of Zeng.ZHANG Huai YAN ZhenZhen YANG ChangChun SHI YaoLinit 2007Chinese Science Bulletin2007,52,16:1
19Comparison of curative effect of subtotal resection and simple repair in treatment of acute gastric perforation显示文摘Zheng Huai Shi Xuelin 2014Medical Research in China and Foreign Countries2014,10,27:1
20Probable limited person-to-person transmission of highly pathogenic avian influenza A(H5N1)virus in China显示文摘Wang H Feng Z Shu Y Yu H Zhou L Zu R Huai Y Dong J Bao C Wen L Wang H Yang P Zhao W Dong L Zhou M Liao Q Yang H Wang M Lu X Shi Z Wang W Gu L Zhu F Li Q Yin W Yang W Li D Uyeki T M Wang Y 2008Lancet2008,371,9622:1
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