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| 1 | A Constitutive Model of Granite Shear Creep under Moisture显示文摘Previous constitutive models of granite shear creep have two limitations:(1) although moisture greatly affects granite shear creep behavior, currently there are no constitutive models that include this factor;(2) there are also no models that include an acceleration stage. This paper presents an improved Burgers constitutive model with the addition of a damage parameter to characterize the moisture effect and uses a nonlinear relation equation between stress and strain for inclusion as the acceleration stage. The damage parameter is determined from granite creep experiment under four different moisture contents(0%, 0.22%, 0.49%, and 0.79%). The nonlinear relation equation is obtained by fitting a dataset of stain versus time under five different loading stages. To verify the presented model, a creep experiment was conducted on other granite samples and the results show that the model agrees well with the experimental observation data. | Xingang Wang Bin Hu Huiming Tang Xinli Hu Jiading Wang Lei Huang | 2016 | Journal of Earth Science2016，27，4： | 8 |
| 2 | Robust RGB-D Camera and IMU Fusion-based Cooperative and Relative Close-range Localization for Multiple Turtle-inspired Amphibious Spherical Robots显示文摘In the narrow, submarine, unstructured environment, the present localization approaches, such as GPS measurement, dead?rcckoning, acoustic positioning, artificial landmarks-based method, are hard to be used for multiple small-scale underwater robots. Therefore, this paper proposes a novel RGB-D camera and Inertial Measurement Unit (IMU) fusion-based cooperative and relative close-range localization approach for special environments, such as underwater caves. Owing to the rotation movement with zero-radius, the cooperative localization of Multiple Turtle-inspired Amphibious Spherical Robot (MTASRs) is realized. Firstly, we present an efficient Histogram of Oriented Gradient (HOG) and Color Names (CNs) fusion feature extracted from color images ofTASRs. Then, by training Support Vector Machine (SVM) classifier with this fusion feature, an automatic recognition method of TASRs is developed. Secondly, RGB-D camerabased measurement model is obtained by the depth map In order to realize the cooperative and relative close-range localization of MTASRs, the MTASRs model is established with RGB-D camera and IMU. Finally, the depth measurement in water is corrected and the efficiency of RGB-D camera for underwater application is validated. Then experiments of our proposed localization method with three robots were conducted and the results verified the feasibility of the proposed method for MTASRs. | Huiming Xing Liwei Shi Kun Tang Shuxiang Guo Xihuan Hou Yu Liu Huikang Liu Yao Hu | 2019 | Journal of Bionic Engineering2019，16，3： | 6 |
| 3 | Surface Microtextures of Slipping Zone Soil of Some Landslides in the Three Gorges Reservoir District and Their Significance显示文摘The mineral assemblage and content and surface microtextures of slipping zone soil of several landslides in the Three Gorges Reservoir District have been analyzed using the scanning electron microscope (SEM) and X-ray diffractometer (XRD). All the mineral assemblages are similar in these landslides. The main minerals are montmorillonite, illite, kaolinite, chlorite, quartz and feldspar. There are two kinds of surface microtexture in the slipping zone soil, i.e., linear scratches and arcuate scratches. Based on analyses of the changes of the microtextures, one can obtain information about the number, directions and stages of landslide movements. The authors have also studied the mechanism of landslide formation, evaluated the stability of landslides and revival possibility of ancient landslides and forecasted the activity of similar landslides in different districts. The surface microtexture features of stable landslides and mobile landslides are summarized and it is concluded that the existence of | YAN Chunjie SUN Yunzhi TANG Huiming | 2000 | Acta Geologica Sinica(English Edition)2000，74，2： | 5 |
| 4 | Dynamic Stability Analysis of Wedge in Rock Slope Based on Kinetic Vector Method显示文摘A new method(kinetic vector method, KVM) is presented for analyzing the dynamic stability of wedge in rock slope. The dynamic analysis is carried out based on three dimensional distinct element code(3DEC), and the kinetic inertial force of the wedge under seismic loading can be obtained via calculating the net vectorial nodal force of the finite difference grid. Then, the factor of safety(FOS) of the wedge can be calculated based on limit equilibrium method(LEM) at each dynamic analysis step, therefore time series of the FOS for whole earthquake process can be obtained. For the purpose of evaluating the entire dynamic stability of the wedge, dynamic factor of safety(DFOS) is proposed and defined as a numerical value corresponding with a given rate of probability guarantee based on reliability theory. Consequently, the KVM inherits the merits of the LEM and also has fully nonlinear dynamic analysis capabilities, and the feasibility and correctness of the KVM are tested by an example given by Hoek and Bray(1981). Finally, a rock slope case in Wenchuan Earthquake regions of China is presented to verify the engineering practicability of the KVM, and the results matched the actual situation well. | Weida Ni Huiming Tang Xiao Liu Rui Yong Zongxing Zou | 2014 | Journal of Earth Science2014，25，4： | 4 |
| 5 | Critical function of DNA methyltransferase 1 in tomato development and regulation of the DNA methylome and transcriptome显示文摘DNA methylation confers epigenetic regulation on gene expression and thereby on various biological processes.Tomato has emerged as an excellent system to study the function of DNA methylation in plant development.To date,regulation and function of DNA methylation maintenance remains unclear in tomato plants.Here,we report the critical function of tomato(Solanum lycopersicum)Methyltransferase 1(Sl MET1)in plant development and DNA methylome and transcriptome regulation.Using CRISPR-Cas9 gene editing,we generated slmet1 mutants and observed severe developmental defects with a frame-shift mutation,including small and curly leaves,defective inflorescence,and parthenocarpy.In leaf tissues,mutations in Sl MET1 caused CG hypomethylation and CHH hypermethylationon a whole-genome scale,leading to a disturbed transcriptome including ectopic expression of many RIN target genes such as ACC2 in leaf tissues,which are normally expressed in fruits.Neither the CG hypomethylation nor CHH hypermethylation in the slmet1 mutants is related to tissue culture.Meanwhile,tissue culture induces non-CG hypomethylation,which occurs more frequently at gene regions than at TE regions.Our results depict Sl MET1-and tissue culture-dependent tomato DNA methylomes,and that Sl MET1 is required for maintaining a normal transcriptome and normal development of tomato. | Yu Yang Kai Tang Tatsiana U Datsenka Wenshan Liu Suhui Lv Zhaobo Lang Xingang Wang Jinghui Gao Wei Wang Wenfeng Nie Zhaoqing Chu Heng Zhang Avtar K HANDa Jian-Kang Zhu Huiming Zhang | 2019 | Journal of Integrative Plant Biology2019，61，12： | 3 |
| 6 | A Predictive,Two-Parameter Model for the Movement of Reservoir Landslides显示文摘Monitoring data show that many landslides in the Three Gorges region,China,undergo step-like displacements in response to the managed,quasi-sinusoidal annual variations in reservoir level.This behavior is consistent with motion initiating when the reservoir water level falls below a critical level that is intrinsic to each landslide,with the subsequent displacement rate of the landslide being proportional to the water depth below that critical level.Most motion terminates when the water level rises back above the critical level,so the annual step size is the time integral of the instantaneous displacement rate.These responses are incorporated into a differential equation that is easily calibrated with monitoring data,allowing prediction of landslide movement from actual or anticipated reservoir level changes.Model successes include(1)initiation and termination of the annual sliding steps at the critical reservoir level,producing a series of steps;(2)prediction of variable step size,year to year;and(3)approximate prediction of the shape and size of each annual step.Annual rainfall correlates poorly with step size,probably because its effect on groundwater levels is dwarfed by the 30 m annual variations in the level of the Three Gorges Reservoir.Viscous landslide behavior is suggested. | Robert E.Criss Wenmin Yao Changdong Li Huiming Tang | 2020 | Journal of Earth Science2020，31，6： | 3 |
| 7 | Scientific challenges of research on natural hazards and disaster risk显示文摘As a discipline,the science of natural hazards and disaster risk aims to explain the spatial-temporal pattern,process and mechanism,emergency response and risk mitigation of natural hazards,which requires a multidisci-plinary and interdisciplinary approach.With the support of Natural Science Finance of China(NSFC)and Chinese Academy of Sciences(CAS),in-depth research and systematic analysis on natural hazards and disaster risk were conducted.In this paper,the state of the art in research on natural hazards is summarized from seven aspects:formation process,mechanism and dynamic of natural hazards,disaster risk assessment,forecast,monitoring and early warning,disaster mitigation,emergency treatment and rescue,risk management and post-disaster re-construction.The trends within the natural hazards and disaster risk as a discipline were identified,along with existing shortcomings and significant gaps that need to be addressed.This paper highlighted:1)the scientific challenges including the frontier scientific issues and technological gaps on natural hazards and disaster risk dis-cipline from 2025 to 2035 in China,and 2)the proposal to develop a systemic and holistic natural hazards and disaster risk discipline. | Peng Cui Jianbing Peng Peijun Shi Huiming Tang Chaojun Ouyang Qiang Zou Lianyou Liu Changdong Li Yu Lei | 2021 | Geography and Sustainability2021，2，3： | 3 |
| 8 | Start-up Characteristics of Linear Compressors in a Refrigeration System显示文摘This work investigates the start-up characteristics of linear compressors in a refrigeration system through experiment and simulation.Experiments are carried out by a refrigeration test system with a linear compressor controlled by a LabVIEW platform.A simulation model that considers the nonlinear process of gas force is set up on the basis of Runge-Kutta method for linear compressors.Compared with the experimental results,the simulation errors are within 15%,including the unstable state.The influences of ambient temperature and power frequency on linear compressors are studied through experiments.Unstable phenomena exist at 25℃ ambient temperature compared with the designed ambient temperature of 35℃.The unsteadiness mechanism is analyzed by simulation.Simulation analysis indicated that two sensitive stages of linear compressors,namely,starting to pump and touching top dead center,are unstable.Furthermore,properly increasing equivalent mass (approximately 3%) or spring stiffness doring the design stage can be a practical method to improve the stability of linear compressors. | ZOU Huiming LI Xuan TANG Mingsheng TIAN Changqing | 2021 | Journal of Thermal Science2021，30，2： | 1 |
| 9 | Performance Characteristics Around the TDC of Linear Compressor Based on Whole-process Sim- ulation显示文摘 | Huiming Zou Mingsheng Tang Hongbo Xu Shuangquan Shao Changqing Tian | 2014 | International Journal of Applied Electromagnet- ics and Mechanics2014，28，10： | 1 |
| 10 | Characteristics of landslides induced by the great Wenchuan Earthquake显示文摘 | Tang Huiming Jia Hongbiao Hu Xinli | 2010 | Journal of Earth Science2010，21，10： | 1 |
| 11 | An altered peptide ligand for na?ve cytotoxic T lymphocyte epitope of TRP-2(180–188) enhanced immunogenicity显示文摘 | Yan Tang Zhihua Lin Bing Ni Jing Wei Junfeng Han Huiming Wang Yuzhang Wu | 2007 | Cancer Immunology Immunotherapy2007，，3： | 1 |
| 12 | Aging Resistance Evaluation of Aged Paper Reinforced with Different Nanocelluloses显示文摘Paper documents experience severe acidification and embrittlement.Nanocellulose is an excellent reinforcement material for paper documents owing to its compatibility and excellent mechanical strength.However,little research has been conducted on the aging resistance of nanocellulose-reinforced paper.In this study,six types of nanocelluloses were used to reinforce aged paper.The reinforcement and anti-aging performances were evaluated,and the anti-aging mechanism was further clarified.Nanocellulose with a high degree of polymerization can better enhance aged paper,and non-chemical nanocellulose also shows better anti-aging performance,such as nanocellulose prepared by mechanical or biological methods.However,nanocellulose prepared using chemical methods exhibits poor reinforcement and anti-aging performance.This is because it has a small particle size that is not beneficial for physical crosslinking with paper fibers.More importantly,the introduction of acidic or oxidizing groups on nanocellulose accelerates the acid hydrolysis and oxidation rate of paper fibers,especially nanocellulose prepared by 2,2,6,6-tetramethylpiperidine-1-oxyl oxidation,which should not be used to protect paper documents. | Xian Cao Bei He Jianlin Wang Chunhui Zhang Donglin Tang Qingyou Liang Chuanfu Liu Huiming Fan Junli Ren | 2023 | Paper And Biomaterials2023，8，3： | 0 |
| 13 | Spatial prediction of landslide for Badong County in the Three Gorges reservoir district显示文摘By using the landslide risk evaluating model and the advantages of GIS technology in image processing and space analysis,the relative landslide hazard and risk evaluating system of the new county site of Badong is built up.The system is mainly consisted of four subsystems:Information management subsystem,hazard assessment subsystem,vulnerability evaluation subsystem and risk prediction subsystem.In the system,landslide hazard assessment,vulnerability evaluation,risk predictions are carried out automatically based on irregular units.At last the landslide hazard and risk map of the study area is compiled.During the whole procedure,Matter-Element Model,Artificial Neural Network,and Information Model are used as assessment models.This system provides an effective way for the landslide hazard information management and risk prediction of each district in the Reservoir of Three Gorge Project.The result of the assessment can be a gist and ensure for the land planning and the emigration project in Badong. | Huiming TANG Yiping WU | 2006 | Global Geology2006，9，2： | 0 |
| 14 | An Analysis for Cross Beam-Ground Anchor Reinforcement显示文摘With the rapid development of water facilities, hydroelectric projects, highways and railways in China, beam-anchor reinforcement has been widely used to stabilize slopes in recent years. But the theory for the design of beam-anchor reinforcement is far behind the application. Cross beam-ground anchor reinforcement is a combination of beams and anchors forming a new structure to prevent slope sliding. The forces in the beams are discussed using theoretical analysis and numerical modeling. The Winkler model is used to analyze the beams, and reasonable values of λ, length, spacing and cantilevered length for the beams are determined through a theoretical analysis. A three-dimensional finite element method is adopted to model the interaction of the beams and soils and a structure analysis is applied to treat the beams and to study the stress distribution in external and internal beams. The analytical results show that it is better to satisfy λ≥2π, the spacing between anchors ls should be lsλ<π/2 and cantilever length should be (0.3-0.5)ls for the optimum design. The numerical results show that the same design can be used for all beams in different directions, including the internal and external beams. The application of the analytical method for reinforcement beam analysis is acceptable. It is better to choose a safety coefficient of 1.3 for design based on the analytical method for safety. | Xu Yingzi Zhang Baiqing Tang Huiming | 2005 | Journal of China University of Geosciences2005，16，3： | 0 |
| 15 | Deformation Control of Deep Excavation Pit and Numerical Simulation with Finite Element Method显示文摘The authors firstly introduce deformation control of deep excavation pit in detail, and then put forward new conceptions such as: effective coefficient of excavation pit, effective area, ineffective area and critical line, and also put forward the referential criteria of deformation control. The System of Optimization Design with Deformation Control of Deep Excavation Pit and Numerical Simulation with Finite Element Method (SDCDEFEM) is also briefly introduced. Factors influencing deformation of excavation pit are analyzed by the system. The measured and simulated data of maximum deformations (settlement, displacement and upheaval) and their positions are analyzed and discussed. The statistic formula estimating maximum deformations and their positions was gained, and economical effective measures of deformation control were brought forward. | Li Yun’an Engineering Faculty, China University of Geosciences, Wuhan 430074 School of Civil Engineering and Mechanics, Shanghai Jiaotong University, Shanghai 200030 Ge Xiurun School of Civil Engineering and Mechanics, Shanghai Jiaotong University, Shanghai 200030 Tang Huiming Engineering Faculty, China University of Geosciences, Wuhan 430074 | 2002 | Journal of China University of Geosciences2002，13，3： | 0 |
| 16 | Geometry and Maximum Width of a Stable Slope Considering the Arching Effect显示文摘The stability of an arching slope in deformable materials above strong rocks strongly depends on the shape and width of the span.Equations for a free surface problem that incorporate these two parameters were derived using a simplified two-dimensional arching slope model,and were validated using physical model tests under 1 g and centrifugal conditions.The results are used to estimate the maximum excavation width for a weak claystone slope in a lignite mine,for which we calculate a safety factor of 1.31. | Kun Fang Huiming Tang Xuexue Su Wentao Shang Shenglong Jia | 2020 | Journal of Earth Science2020，31，6： | 0 |
| 17 | Study on Geomechanical and Physical Models of Necking-Type Slopes显示文摘A simplified geomechanical model was proposed by considering three typical neckingtype slopes;this model lays a foundation for the further investigation of the deformation behaviors of such slopes.Three physical models of necking-type slopes were built according to the geomechanical model with slope evolution stages.Finally,preliminary calculations related to the arching effect in the physical model were conducted.Three evolution stages of necking-type slopes,namely,the initial stage,compression stage,and failure stage,were presented based on the formation and disappearance of the arching effect within the slope.The specific parameters of the geomechanical model were given.In the setup of the tilting test,the failure angle of the necking-type slope model was calculated to be approximately 50°with a large lateral resistance coefficient.The proposed geomechanical model and physical models of necking-type slopes provide guidance for the establishment of geomechanical and physical models of landslides at specific sites. | Kun Fang Huiming Tang Jichen Zhu Zijin Fu Pengju An Bocheng Zhang Chunyan Tang | 2023 | Journal of Earth Science2023，34，3： | 0 |
| 18 | Mechanism, behaviour and application of iron nitrate modified carbon nanotube composites for the adsorption of arsenic in aqueous solutions显示文摘In this study,ferric nitrate modified carbon nanotube composites (FCNT) were prepared by isovolumetric impregnation using carbon nanotubes (CNTs) as the carrier and ferric nitrates the active agent.The batch experiments showed that FCNT could effectively oxidize As(III) to As(V) and react with it to form stable iron arsenate precipitates.When the dosage of FCNT was 0.1 g·L^(–1),pH value was 5–6,reaction temperature was 35℃ and reaction time was 2 h,the best arsenic removal effect could be achieved,and the removal rate of As(V) could reach 99.1%,which was always higher than 90%under acidic conditions.The adsorption results of FCNT were found to be consistent with Langmuir adsorption by static adsorption isotherm fitting,and the maximum adsorption capacity reached 118.3 mg·g^(-1).The material phase and property analysis by scanning electron microscopy,Brunauer–Emmett–Teller,Fourier transform infrared spectoscopy,X-ray photoelectron spectroscopy and other characterization methods,as well as adsorption isotherm modeling,were used to explore the adsorption mechanism of FCNT on arsenic.It was found that FCNT has microporous structure and nanostructure,and iron nanoparticles are loosely distributed on CNTs,which makes the material have good oxidation,adsorption and magnetic separation properties.Arsenic migrates on the surface of FCNT composites is mainly removed by forming insoluble compounds and co-precipitation.All the results show that FCNT treats arsenic at low cost with high adsorption efficiency,and the results also provide the experimental data basis and theoretical basis for arsenic contamination in groundwater. | Yingli Li Zhishuncheng Li Guangfei Qu Rui Li Shuaiyu Liang Junhong Zhou Wei Ji Huiming Tang | 2023 | Chinese Journal of Chemical Engineering2023，60，8： | 0 |
| 19 | Impact of the Yellow River capture on the paleoenvironmental changes of Hongze Lake,China显示文摘The Yellow River(YR)capture of the Huai River had a profound effect on the landscape evolution,ecology,and social development in China,disrupting the evolution of some vital shallow floodplain lakes.Because of the absence of lacustrine sediment provenance analysis,previous studies were inadequate in distinguishing the influence of YR capture on paleoenvironmental changes in these lakes,especially on landscape evolution,redox conditions,lake level changes,and organic productivity.The current study aims to use X-ray fluorescence-core scanning(XRF-CS)and multivariate statistics on a 9.8 m sediment core from Hongze Lake(HZL),China,to analyze the impact of the YR capture on the lake’s paleoenvironmental changes and the sediment provenance simultaneously.High-resolution images,magnetic susceptibility,and XRF-based multi-element data were obtained using a GEOTEK Multi-Sensor Core Logger.The calcium(Ca)content indicates the presence of YR sediment in HZL,given the high Ca content in YR sediment and the identification of mainly exogenous sources of Ca in HZL.The high values of Ca indicate that 48.7%of the sediment in the center of HZL is related to the YR’s incursion.Periods of higher Ca content coincide with periods of higher oxygenation levels of the lake(as indicated by the ratio of manganese to titanium)and lower organic content in the lake sediment(as indicated by the ratio of incoherent to coherent scatter).These analyses reveal that the YR’s capture of HZL significantly increased the lake’s oxygen level.Furthermore,the decrease in the organic content of sediment tends to be the result of the accelerated deposition caused by the YR.The decrease in Ca content coincides with an increase in lake levels(as indicated by magnetic susceptibility).Thus,it can be inferred that the embankment on the eastern side of HZL,built to increase lake storage,has reduced the incursion frequency of the YR. | Hongwu Tang Ming Gao Saiyu Yuan Huiming Zhang Yang Xiao Fuxin Zhang Kun Zhang | 2023 | International Journal of Sediment Research2023，38，4： | 0 |
| 20 | Critical Slope and Plasticity显示文摘INTRODUCTIONDespitethedevelopmentofelastic-plastic-viscousnumeri-calmethodfortheanalysisofslopes,traditionaltechniquesbasedon... | Wang Jianfeng Laboratory for Nonlinear Mechanics of Continuous Media, Institute of Mechanics, CAS, Beijing 100080 Tang Huiming Faculty of Environmental Science and Geotechnique, China University of Geosciences, Wuhan 430074 | 1998 | Journal of Earth Science1998，17，2： | 0 |
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