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| 1 | Numerical modelling rock deformation subject to nitrogen cooling to study permeability evolution显示文摘 | Chunhui Zhang Laigui Wang Jianhua Du Yinghui Tian | 2015 | International Journal of Coal Science & Technology2015,2,4: | 10 |
| 2 | Stress intensity factor for a cracked specimen under compression显示文摘 | Zheming Zhu Laigui Wang Bibhu Mohanty Chengyi Huang | 2005 | Engineering Fracture Mechanics2005,,4: | 3 |
| 3 | Numerical modeling of permeability evolution based on degradation approach during progressive failure of brittle rocks显示文摘The permeability evolution of rock during the progressive failure process is described.In combination with the strength degradation index,the degradation formulas of s and a,which are dependent on the plastic confining strain component,the material constants of Hoek–Brown failure criterion are presented,and a modified elemental scale elastic–brittle–plastic constitutive model of rock is established.The relationship between volumetric strain and permeability through tri-axial compression is investigated.Based on the above,a permeability evolution model is established.The model incorporates confining pressuredependent degradation of strength,dilatancy and corresponding permeability evolution.The model is implemented in FLAC by the FISH function method.The permeability evolution behavior of rock is investigated during the progressive failure process in a numerical case.The results show that the model is capable of reproducing,and allowing visualization of a range of hydro-mechanical responses of rock.The effects of confining pressure on degradation of strength,dilatancy and permeability evolution are also reflected. | Zhang Chunhui Yue Hongliang Zhao Quansheng Wang Laigui | 2016 | International Journal of Mining Science and Technology2016,26,4: | 3 |
| 4 | Influence of seeding promoters on the properties of CVD grown monolayer molybdenum disulfide显示文摘Chemical vapor deposition (CVD) is the most efficient method to grow large-area two dimensional (2D) transition metal dichiacogenides (TMDCs) in high quality.Monolayer molybdenum disulfide (MoS2) and seed-assistant are the mostly selected 2D TMDC and growth strategy for such CVD processes,respectively.Though the advantages of seed catalysts in facilitating the nucleation,achieving higher yield and better repeatability,as well as their effects on the morphologies of as-grown MoS2 have been studied,the influence of seeding promoters on both optical and electrical properties of as-grown monolayer MoS2 is not known comprehensively,which is indeed critical for understanding fundamental physics and developing practical application of such emerging 2D semiconductors.In this report,we systematically investigated the effect of different seeding promoters on the properties of CVD-grown monolayer MoS2.It is found that different seed molecules lead to different impacts on the optical and electrical properties of as-grown monolayer MoS2.Among three different seed catalysts (perylene-3,4,9,10-tetracarboxylic acid tetrapotassium salt (PTAS),copper phthalocyanine (CuPc),and crystal violet (CV)),PTAS performs better in obtaining large area monolayer MoS2 with good optical quality and high electrical mobility than the other two.Our work gives a guide for modifying the properties of as-grown monolayer MoS2 and other 2D transition metal dichalcogenides in seeding promoters-assisted synthesis process. | Peng Yang Ai-Guo Yang Lingxiu Chen Jing Chen Youwei Zhang Haomin Wang Laigui Hu Rong-Jun Zhang Ran Liu Xin-Ping Qu Zhi-Jun Qiu Chunxiao Cong | 2019 | Nano Research2019,12,4: | 2 |
| 5 | Mode properties produced by a corner cube cavity显示文摘 | Shen Meixiao Wang Shaomin Hu Laigui | 2004 | Appl Opt2004,43,20: | 1 |
| 6 | Evolution process of rock mass engineering system using systems science显示文摘1.Introduction The rock mass engineering system(RMES)basically consists of rock mass engineering(RME),water system and surrounding ecological environments.etc.The RMES is characterized by nonlinearity,occurrence of chaos and self-organization(Tazaka,1998;Tsuda,1998;Kishida,2000).From construction to abandonment of RME,the RMES will experience four stages,i.e.initial phase,development phase,declining phase and failure phase.In | Laigui Wang Yanhui Xi Xiangfeng Liu Na Zhao Ziling Song | 2015 | Journal of Rock Mechanics and Geotechnical Engineering2015,7,6: | 1 |
| 7 | Stress intensity factor for a cracked specimen under compression显示文摘 | Zheming Zhu Laigui Wang Bibhu Mohanty Chengyi Huang | 2005 | Engineering Fracture Mechanics2005,,4: | 1 |
| 8 | Preparation of porous super-hydrophobic and super-oleophilic polyvinyl chloride surface with corrosion resistance property显示文摘 | Yingke Kang Jinyan Wang Guangbin Yang Xiujuan Xiong Xinhua Chen Laigui Yu Pingyu Zhang | 2011 | Applied Surface Science2011,,3: | 1 |
| 9 | A simple element-splitting model to simulate the tensile fracture of brittle materials and its experimental verification 显示文摘 | Wang laigui Zhao Na Ma Shaopeng | 2009 | Computational Materials Science2009,46,3: | 1 |
| 10 | A simple element-splitting model to simulate the tensile fracture of brittle materials and experimental verification显示文摘 | Wang Laigui Zhao Na Ma Shaopeng | 2009 | Computational Materials Science2009,46,: | 1 |
| 11 | Mode Properlies Produced by a Corner - Cube Cavity显示文摘 | Meixiao Shen Shaomin Wang laigui Hu | 2004 | Applied optics2004,43,20: | 1 |
| 12 | Mode properties produced by a corner-cube cavity显示文摘 | Shen Meixiao Wang Shaomin Hu Laigui | 2004 | Applied Optics2004,43,20: | 1 |
| 13 | Triaxial creep damage characteristics of sandstone under high crustal stress and its constitutive model for engineering application显示文摘The creep characteristics of rock under high crustal stress are of important influence on the long‐term stability of deep rock engineering.To study the creep characteristics and engineering application of sandstone under high crustal stress,this study constructed nonlinear creep damage(NCD)constitutive mode based on the triaxial graded loading‒unloading creep test of sandstone in the Yuezhishan Tunnel.A numerical NCD constitutive model and a breakable lining(BL)model were developed based on FLAC3D and then applied to the stability analysis of the Yuezhishan Tunnel.Based on the creep test results of sandstone,a power function of creep rate and stress level was constructed,by which the long‐term strength was solved.The results show that the long‐term strength of the red sandstone based on the related function of the steady‐state creep rate and stress level is close to the measured stress value in engineering.The NCD model considering damage factors reflects the instantaneous and viscoelastic plasticity deformation characteristics of the red sandstone.The numerical NCD constitutive model and the BL model can reflect surrounding rock deformation characteristics and lining failure characteristics in practical engineering.The research results provide theoretical references for long‐term stability analysis of rock engineering and the deformation control of surrounding rock under high crustal stress. | Dongxu Chen Laigui Wang Pierre Darry Versaillot Chuang Sun | 2023 | Deep Underground Science and Engineering2023,2,3: | 0 |
| 14 | Web pillar stability in open‑pit highwall mining显示文摘When highwall mining technology is applied to recover large amounts of residual coal left under the highwall of a big openpit mine,a reasonable coal pillar width is required to ensure the stability of the web pillars.Using numerical simulations,this paper studied the characteristics of the abutment stress distribution in the web pillars under different slope angles and mining depths,and established a relation describing the stress distribution in the web pillar.The relationship between the abutment stress and the ultimate strength of the web pillar under different pillar widths was also analyzed.In combination with the failure characteristics of the pillar yield zone,this relationship was used to explore the instability mechanism of web pillars.Finally,the optimal retaining widths of the web pillars were determined.Based on the modeling results,a mechanical bearing model of the web pillar was established and a cusp catastrophe model of pillar-overburden was constructed.Additionally,the web pillar instability criterion was derived.By analyzing the ultimate strength of the web pillars,a formula for calculating the yield zone width either side of the pillars was established.Using the instability criterion of web pillars in highwall mining,a reasonable pillar width can be deduced theoretically,providing significant guidance on the application of highwall mining technology. | Juyu Jiang Zhuowei Zhang Dong Wang Laigui Wang Xinping Han | 2022 | International Journal of Coal Science & Technology2022,9,1: | 0 |
| 15 | Molecular and nanostructure designed superhydrophilic material with unprecedented antioil-fouling property for diverse oil/water separation显示文摘The design and development of new advanced superwetting porous membranes with antioil-fouling performance are still rare and highly desirable because of their potential widespread applications.A metallic phosphate nanoflower-covered mesh membrane with superhydrophilic and unprecedented antioil-fouling properties is prepared by an exceptionally simple and effective in-situ solution corrosion method.As demonstrated,the outstanding antioil-fouling property of the resulting mesh membrane is connected with the special phosphate group and the three-dimensional(3 D) nanoflower structure.Owing to the antioil-fouling property,upon to water,the oil-fouled mesh membrane can keep the surface free of various kinds of oils,including viscous crude oil to light n-hexane.Thanks to its unprecedented self-cleaning property,the superhydrophilic mesh membrane can effectively separate different oil/water mixtures without prior wetted by water,exhibiting great potential for practical spilled oil remediation. | WANG ZheCun GUAN Min YANG Xin LI HanZhen WANG LaiGui | 2022 | Science China(Technological Sciences)2022,65,6: | 0 |
| 16 | Molecular ferroelectric/semiconductor interfacial memristors for artificial synapses显示文摘With the burgeoning developments in artificial intelligence,hardware implementation of artificial neural network is also gaining pace.In this pursuit,ferroelectric devices(i.e.,tunneling junctions and transistors)with voltage thresholds were recently proposed as suitable candidates.However,their development is hindered by the inherent integration issues of inorganic ferroelectrics,as well as poor properties of conventional organic ferroelectrics.In contrast to the conventional ferroelectric synapses,here we demonstrated a two-terminal ferroelectric synaptic device using a molecular ferroelectric(MF)/semiconductor interface.The interfacial resistance can be tuned via the polarization-controlled blocking effect of the semiconductor,owing to the high ferroelectricity and field amplification effect of the MF.Typical synaptic features including spike timing-dependent plasticity are substantiated.The introduction of the semiconductor also enables the attributes of optoelectronic synapse and in-sensor computing with high image recognition accuracies.Such interfaces may pave the way for the hardware implementation of multifunctional neuromorphic devices. | Yichen Cai Jialong Zhang Mengge Yan Yizhou Jiang Husnain Jawad Bobo Tian Wenchong Wang Yiqiang Zhan Yajie Qin Shisheng Xiong Chunxiao Cong Zhi-Jun Qiu Chungang Duan Ran Liu Laigui Hu | 2022 | npj Flexible Electronics2022,6,1: | 0 |
| 17 | Intrinsic excitonic emission and valley Zeeman splitting in epitaxial MS2(M=Mo and W)monolayers on hexagonal boron nitride显示文摘Two-dimensional (2D)semiconductors,represented by 2D transition metal dichalcogenides (TMDs),exhibit rich valley physics due to strong spin-orbit/ spin-valley coupling.The most common way to probe such 2D systems is to utilize optical methods,which can monitor light emissions from various excitonic states and further help in understanding the physics behind such phenomena. Therefore,2D TMDs with good optical quality are in great demand.Here,we report a method to directly grow epitaxial WS2 and MoS2 monolayers on hexagonal boron nitride (hBN)flakeswith a high yield and high optical quality;these monolayers show better intrinsic light emission features than exfoliated monolayers from natural crystals.For the first time,the valley Zeeman splitting of WS2 and MoS2 monolayers on hBN has been visualized and systematically investigated. This study paves a new way to produce high optical quality WS2and MoS2 monolayers and to exploit their intrinsic properties in a multitude of applications. | Chunxiao Cong Chenji Zou Bingchen Cao Lishu Wu Jingzhi Shahg Haomin Wang Zhijun Qiu Laigui Hu Pengfei Tian Ran Liu Ting Yu | 2018 | Nano Research2018,11,12: | 0 |