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57篇 您的检索式:作者名="Huabei"
    题名 作者 年代 出处 被引量
1刚性基础上双级土工格栅加筋土挡墙性状研究显示文摘以刚性基础上双级土工格栅加筋土挡墙为工程依托进行了现场原型试验研究,分析了施工期及竣工后1.5年期间各级挡墙加筋体底部竖向土压力、墙面板背部侧向土压力和土工格栅拉筋应变分布规律。试验结果表明:刚性基础上加筋体底部垂直土压力沿筋长方向由均匀等值分布变化到呈曲线型分布,最大值靠近墙面位置。柔性基础上加筋体底部垂直土压力沿筋长呈非线性分布,最大值靠近拉筋尾部。竣工后加筋体底部垂直土压力分布形式基本不变。施工期间加筋土挡墙墙背侧向土压力沿墙高呈曲线分布,且随上覆填土厚度的增加而增大,数值增长速率逐渐减小。墙背侧向土压力远小于主动土压力,竣工后其值随时间延续逐步减小。施工期各测试层位拉筋应变基本上随上覆填土厚度的增加而增大,应变沿筋长方向呈双峰值的非线性分布,各测试层位土工格栅拉筋实测应变最大值均小于0.4%,竣工后拉筋应变基本无明显变化。试验结果可以为类似结构工程提供参考。杨广庆 周亦涛 熊保林 Liu Huabei 2012水利学报2012,43,12:16
2Stress-dilatancy of Zipingpu gravel in triaxial compression tests显示文摘Experimental investigations of the dilatancy and particle breakage of gravelly material from the Zipingpu concrete-faced rockfill dam, which was subjected to high-intensity seismic load during the 2008 Wenchuan earthquake, were conducted through a series of large-scale drained triaxial compression tests. A hyperbolic relation between the input plastic work and the degree of particle breakage was found for Zipingpu gravel, independent of the initial void ratio and confining pressures. The stress-dilatancy for Zipingpu gravel was analyzed and compared with data from two rounded alluvial and three angular quarried gravelly and rockfill materials in the literature. A nearly linear relationship between the dilatancy D^p and the stress ratio η was found at medium-to-large stress ratios before the peak stress ratio. The slope of the stress-dilatancy line before peak had slight dependence on the void ratio and confining pressure of the gravel. After peak, the stress-dilatancy relation shifts down compared with that before peak for the gravel specimen. The phase-transformation stress ratio decreased with increased confining pressure, with the exception of sub-rounded gravel with little particle breakage. A nearly linear relationship was found between the phase-transformation stress ratio M_f and the state parameter y for the Zipingpu gravel, regardless of the void ratio and confining pressure of the specimens.LIU JingMao ZOU DeGao KONG XianJing LIU HuaBei 2016Science China(Technological Sciences)2016,59,2:9
3THE BOUNDEDNESS OF CERTAIN OPERATORS ON HOLDER AND SOBOLEV SPACES显示文摘The main topic in this note is to discuss the boundedness of pseudo-differential operators and para-product nptfators on ihe Holder and Sobotev space;, respectively It is the preparation of the thoery of Gibbs - Butzer deffereftital operators and differential equations.Su Weiyi (Nanjing University,China)Liu Guangqi (Huabei Electronic Faculty University,China) 1997Analysis in Theory and Applications1997,13,1:4
4Recent advances on first-principles modeling for the design of materials in CO2 capture technologies显示文摘Novel technologies in consideration of industrial sustainability(IS)are in urgent need to satisfy the increasing demands from the society.IS realizes the production of materials while maintaining environmental and resource sustainability.The chemical materials used in CO2 capture and storage(CCS)technologies play a significant role in the disposal of greenhouse gas emissions coming from large stationary fossil-fired power plants,which breaks the principle of IS and brings severe environmental problems.This study aims at providing a detailed review of first-principles modeling(density functional theory,DFT)of materials in CO2 capture technologies.DFT analysis provides insight into the atomic properties of the studied systems and builds an efficient guidance of the future design of the materials used in CO2 capture technologies.Major materials including oxygen carriers,metal organic frameworks,membranes,zeolites,ionic liquids and some other promising candidates are considered.The computational studies bring the outcomes of the adsorption behaviors,structural characteristics and accurate force fields of the studied materials in short turn-around times at low cost.This review can stimulate the design of novel materials with specific target of CO2 capture and promote the industrial sustainability of fossil fuel combustion technologies.Yue Yuan Huabei You Luis Ricardez-Sandoval 2019Chinese Journal of Chemical Engineering2019,27,7:4
5Wear Resistance of Austenitic Steel Fe–17Mn–6Si–0.3C with High Silicon and High Manganese显示文摘To solve the problem of poor wear resistance in conventional Hadfield steels under medium and low stress,a new kind of steel with high silicon and high manganese Fe–17Mn–6Si–0.3C was designed and its wear resistance was studied.The results showed that it exhibited better wear resistance than conventional Hadfield steel in both dry friction and abrasive friction.The better wear resistance of the new steel with high silicon and high manganese resulted from the stressinduced γ→ε martensitic transformation.Haitao Si Renlong Xiong Fan Song Yuhua Wen Huabei Peng 2014Acta Metallurgica Sinica(English Letters)2014,27,2:4
6APPLICATION OF IMAGE MANIPULATION FOR CAVITATION ANALYZING显示文摘A new method ,which is called image manipulation, is introduced to analyze the cavitation of flow field for the first time. As the complexity of the cavitation development must be considering, only the method of image manipulation can calculate the strength of the cavitation more accurately. This method based on wavelet transform is used to eliminate the noise. The area of the cavitations is deduced to serve as the strength of cavitation. The method is applied in an example of inducer’s rotating cavitation. The results show that using image manipulation can get the accurate date of cavitation with ease,and the reason of the inducer shaft’s vibration is uncovered clearly.Pan Zhongyong (Institute of Fluid Machinery, Jiangsu University of Science and Technology) Li Huabei (Jiangsu University of Science and Technology) 2001Chinese Journal of Mechanical Engineering2001,14,3:2
7Hydrocarbon accumulation model of the Cretaceous in southern China显示文摘The Cretaceous in southern China is mainly a set of red and mauve clastic rock,with evaporation layers. For lack of source rock,it has been paid little attention to in the exploration process. With the development of research on hydrocarbon exploration,the masses of Cretaceous reservoirs and shows have been found in recent years. This means that the Cretaceous has great exploration potential. According to the research,authors find that the high-quality reservoir and efficient cap rocks develop in the Cretaceous. At the same time,the Cretaceous and underlying Paleozoic-Early Mesozoic marine strata and overlying Cenozoic nonmarine strata constitute a superimposed basin. Moreover,high-quality source rocks developed in the above-mentioned two sets of strata. In the south,especially in the middle and lower Yangtze region since the Himalayan strong rift was associated with a large number of faults,These faults connect the Cretaceous reservoir and its overlying and underlying source rocks,forming the fault-based and unconformity-based discontinuous source-reservoir-cap accumulation assemblages. Because the Cretaceous has the abundant oil and gas from Paleogene source rocks or Mesozoic–Paleozoic source rocks with secondary hydrocarbon generation ability,three types of reservoirs develop in the Cretaceous:'new-generating and old-reservoiring' reservoirs,'old-generating andnew-reservoiring' reservoirs,and few 'self-generating andself-reservoiring' reservoirs. The hydrocarbon enrichment depends on two key factors. Firstly,Cretaceous reservoirs are near to the source kitchens,so its oil and gas source is ample. Secondly,the fault system is well developed,which provides the necessary conducting systems for hydrocarbon accumulation.CHEN Bo1,ZHANG ChangMin1,LUO MingXia2,LEI QingLiang3,HAN DingKun3 & ZHOU XiaoJun4 1 Geoscience College of Yangtze University,Jingzhou 434023,China 2 Exploration and Development institute of Northwest Oilfield Branch,SINOPEC,Urumqi 830011,China 3 Sinopec Central-South Company,Changsha 410117,China 4 The Fifth Oil Production Plant of Huabei Oilfield Company,Xinji 052360,China 2009Science China Earth Sciences2009,52,S1:2
8Noninvasive Imaging of Hemoglobin Concentration and Oxygen Saturation for Detection of Osteoarthritis in the Finger Joints UsingMultispectral Three-Dimensional Quantitative Photoacoustic Tomography显示文摘Sun Yao Eric Sobel Jiang Huabei 2013Iop Publishing2013,15,05:1
9Thermoacoustic tomography of in vivo rat brain显示文摘We present for the¯rst time in vivo imaging of rat brain using microwave-induced thermoacoustic tomography(TAT).The in vivo imaging of rat brain was realized through an unconventional delivery of microwave energy from the front of rat brain(while the transducer was scanned along coronal plane of the animal brain),which maximized the microwave penetration into the brain.In addition,we found that the imaging contrast was highly dependent on the direction of the electric¯eld polarization(EFP)and that more tissue structures/compositions could be revealed when both X-and Y-EFPs were used for TAT.The in vivo TAT images of rat brain obtained were compared with the 3.0 T MRI images and histological photographs,and numerous important brain anatomical structures were identi¯ed.An example of our TAT approach for imaging a foreign object embedded in a rat brain was also demonstrated.This study suggests that TAT has a great potential to be used in neuroscience studies and in noninvasive imaging of brain disorders.Yuan Zhao Zihui Chi Lin Huang Zhu Zheng Jinge Yang Huabei Jiang 2017Journal of Innovative Optical Health Sciences2017,,4:1
10Numerical simulation of the seismic response of the Zipingpu concrete face rockfill dam during the Wenchuan earthquake based on a generalized plasticity model显示文摘Degao Zou Bin Xu Xianjing Kong Huabei Liu Yang Zhou 2013Computers and Geotechnics2013,,:1
11Grain boundary character and stress corrosion cracking behavior of Co-Cr alloy fabricated by selective laser melting显示文摘In this work,we used the selective laser melting(SLM)fabricated Co-Cr alloy with prominent residual strain,extremely non-equilibrium microstructures,and low stacking fault energy as a precursor to fabricate materials with the optimal grain boundary character distribution.The grain boundary engineering(GBE)of the Co-Cr alloy was achieved by a simple heat treatment of the SLM-fabricated Co-Cr alloy.The obtained GBE Co-Cr alloy exhibited 81.47%of special grain boundaries(∑3^(n)n=1,2,3),while it substantially disrupted the connectivity of the random high-angle boundaries,successfully reducing the propensity of intergranular degradation.Slow strain rate tests(SSRTs)showed that the GBE Co-Cr alloy possessed lower stress corrosion cracking(SCC)susceptibility and higher ductility in the corrosive environment(0.9%Na Cl solution)than in the air.The high fraction of special boundaries,coupled with the stress-induced martensitic transformation(SIMT)in the GBE Co-Cr alloy yielded these results,which unique and rarely simultaneously satisfied for common structural materials.The current'SLM induced GBE strategy'offers a novel approach towards customized GBE materials with high SCC resistance and ductility in the corrosive environment,shedding new light on developing high-performance structural materials.Xin Dong Ning Li Yanan Zhou Huabei Peng Yuntao Qu Qi Sun Haojiang Shi Rui Li Sheng Xu Jiazhen Yan 2021Journal of Materials Science & Technology2021,,34:1
12Three-dimensional simulation of the construction process of the Zipingpu concrete face rockfill dam based on a generalized plasticity model显示文摘Bin Xu Degao Zou Huabei Liu 2012Computers and Geotechnics2012,,:1
13Thin ceramic PZT dual-and multi-frequency pMUT arrays for photoacoustic imaging显示文摘Miniaturized ultrasonic transducer arrays with multiple frequencies are key components in endoscopic photoacoustic imaging(PAI)systems to achieve high spatial resolution and large imaging depth for biomedical applications.In this article,we report on the development of ceramic thin-film PZT-based dual-and multi-frequency piezoelectric micromachined ultrasonic transducer(pMUT)arrays and the demonstration of their PAI applications.With chips sized 3.5mm in length or 10mm in diameter,square and ring-shaped pMUT arrays incorporating as many as 2520 pMUT elements and multiple frequencies ranging from 1 MHz to 8 MHz were developed for endoscopic PAI applications.Thin ceramic PZT with a thickness of 9μm was obtained by wafer bonding and chemical mechanical polishing(CMP)techniques and employed as the piezoelectric layer of the pMUT arrays,whose piezoelectric constant d_(31)was measured to be as high as 140 pm/V.Benefiting from this high piezoelectric constant,the fabricated pMUT arrays exhibited high electromechanical coupling coefficients and large vibration displacements.In addition to electrical,mechanical,and acoustic characterization,PAI experiments with pencil leads embedded into an agar phantom were conducted with the fabricated dual-and multi-frequency pMUT arrays.Photoacoustic signals were successfully detected by pMUT elements with different frequencies and used to reconstruct single and fused photoacoustic images,which clearly demonstrated the advantages of using dual-and multi-frequency pMUT arrays to provide comprehensive photoacoustic images with high spatial resolution and large signal-to-noise ratio simultaneously.Qincheng Zheng Haoran Wang Hao Yang Huabei Jiang Zhenfang Chen Yao Lu Philip X.-L.Feng Huikai Xie 2022Microsystems & Nanoengineering2022,8,6:1
14Constitutive description at interlace behavior including cyclic loading and particle breakage within the framework of critical state soil mechanics显示文摘Liu Huabei Ling Hoe I 2008International Journal of Numerical and Analytical Method in Geomechanics2008,32,:1
15Re-examination of characteristic FT-IR spectrum of secondary layer in bi- layer oleic acid-coated Fe304 nanoparticles显示文摘Kun Y Huabei P Yuhua W 2010Applied Surface Science2010,25,10:1
16Optical image reconstruction of non-scattering and low scattering heterogeneities in turbid media based on the diffusion approximation model显示文摘Xu Yong Zhang Qizhi Jiang Huabei 2004Journal of Optics A:Pure and Applied Optics2004,6,1:1
17Influence of ageing on wear resistance of an Fe–Mn–Si–Cr–Ni–Ti–C shape memory alloy显示文摘Dengxue Bu Huabei Peng Yuhua Wen Ning Li 2011Materials and Design2011,,5:1
18Ana- lyzing Dynamic Behavior of Geosynthetic-Reinforced Soil Retaining Walls显示文摘Hoe I Ling Liu Huabei Kaliakin Victor 2004ASCE2004,131,4:1
19Seismic Response of Large Under- ground Structures in Liquefiable Soils Subjected to Horizontal and Vertical-earthquake Excitations 显示文摘Huabei Liu Erxiang Song 2005Computers and Geoteehnics2005,32,4:1
20Simultaneous real-time 3D photoacoustic tomography and EEG for neurovascular cou- pling study in an animal model of epilepsy显示文摘Wang Bo Xiao Jiaying Jiang Huabei 2014J Neural Eng2014,11,04:1
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