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Anisotropy of multi-layered structure with sliding and bonded interlayer conditions

Lingyun YOU, Kezhen YAN, Jianhong MAN, Nengyuan LIU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 3,   Pages 632-645 doi: 10.1007/s11709-020-0617-4

Abstract: A better understanding of the mechanical behavior of the multi-layered structure under external loadingobjective of this study are to propose and develop an analytical solution for the mechanical behaviors of multi-layeredinterlayer conditions on the multi-layered structure.Then the global matrix technique is applied to achieve the analytical solution of multi-layered structureflexible pavement was applied as the computing carrier of numerical analysis for the multi-layered structure

Keywords： multi-layered structure     Hankel transformation     anisotropic     transversely isotropic     interlayer condition    

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Quantification of seepage in a multi-layered disconnected river-aquifer system

Jiang LI, Haizhu HU, Xiaomin MAO, Yi LIU

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 237-245 doi: 10.15302/J-FASE-2017135

Abstract: The vadose zone under riverbeds usually exhibits a multi-layered structure, particularly when paved withrate by assessing the dominant low permeability layers (including but not limited to the liners) in multi-layered

Keywords： infiltration     low permeability liner     multi-layered porous media     river-aquifer seepage    

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Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 5,   Pages 745-762 doi: 10.1007/s11709-023-0935-4

Abstract: on complex variable theory is proposed to investigate ground responses due to shallow tunneling in multi-layeredTo solve the proposed multi-boundary problem, a series of analytic functions is introduced to accuratelyBased on the principle of linear-elastic superposition, the multi-boundary problem is converted intopresent model is superior to the classical model for analyzing ground responses of shallow tunneling in multi-layered

Keywords： analytical model     mechanical response     multi-layered ground     shallow tunneling     ground surface load    

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Assessing artificial neural network performance for predicting interlayer conditions and layer modulus of multi-layered

Lingyun YOU, Kezhen YAN, Nengyuan LIU

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2,   Pages 487-500 doi: 10.1007/s11709-020-0609-4

Abstract: artificial neural network (ANN) approach for predicting interlayer conditions and layer modulus of a multi-layeredflexible pavement structure.corresponding database built with ANSYS based finite element method computations for four types of a structurePADAL modeling results were not accurate due to the inability to reflect the real pavement structurebecause pavement structure was not completely continuous.

Keywords： asphalt pavement     interlayer conditions     finite element method     artificial neural network     back-calculation    

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purification of trace thallium(I)-contaminated potable water using a high-selective filter paper with multi-layered

Frontiers of Chemical Science and Engineering doi: 10.1007/s11705-023-2379-8

Abstract: This report proposes the multi-layered Prussian blue (PB)-decorated composite membranes (PBxmulti-layeredThe double-layered PB2@PDA/PEI-FP membrane showed the maximum sorption capacity, but its Tl

Keywords： membrane adsorption     Prussian blue     energy-free filtration     potable water     trace thallium(I)    

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Shaking table testing of hard layered soil-pile-structure interaction system

LI Peizhen, REN Hongmei, LU Xilin, SONG Heping, CHEN Yueqing

Frontiers of Structural and Civil Engineering 2007, Volume 1, Issue 3,   Pages 346-352 doi: 10.1007/s11709-007-0046-7

Abstract: Shaking table tests on a dynamic interaction system of hard layered soil, pile foundation and frame structureThe natural frequency of the system was less than that of the structure on rigid foundation if the SSIis not taken into account, while its damping ratio was larger than that of the structure.The mode shape of the system was different from that of the structure on the fixed base in that thereThe multi-direction excitations have little effect on the key issues of the horizontal SSI.

Keywords： super-structure     Generally     Magnification     frequency     different    

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Fabrication of layered structure VS anchor in 3D graphene aerogels as a new cathode material for lithium

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 597-602 doi: doi:10.1007/s11708-018-0576-9

Abstract: Herein, a layered structure VS4 anchored in graphene aerogels is prepared and first reported

Keywords： VS4     graphene aerogels     cathode     lithium storage    

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Fabrication of layered structure VS

Lijun WU, Yu ZHANG, Bingjiang LI, Pengxiang WANG, Lishuang FAN, Naiqing ZHANG, Kening SUN

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 597-602 doi: 10.1007/s11708-018-0576-9

Abstract: Herein, a layered structure VS anchored in graphene aerogels is prepared and first reported as cathode

Keywords： VS4     graphene aerogels     cathode     lithium storage    

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Uncertain and multi-objective programming models for crop planting structure optimization

Mo LI,Ping GUO,Liudong ZHANG,Chenglong ZHANG

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 1,   Pages 34-45 doi: 10.15302/J-FASE-2016084

Abstract: Crop planting structure optimization is a significant way to increase agricultural economic benefitswhich consider uncertainty and multi-objectives elements.and multi-objective.In addition, a multi-objective fractional programming model for crop structure optimization was alsocrop planting structure optimization systems.

Keywords： crop planting structure     optimization model     uncertainty     multi-objective    

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Stability analysis of layered slopes in unsaturated soils

Guangyu DAI; Fei ZHANG; Yuke WANG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 3,   Pages 378-387 doi: 10.1007/s11709-022-0808-2

Abstract: This study presents stability analyses of layered soil slopes in unsaturated conditions and uses a limitAn example of a two-layered slope in clay and silt is selected to verify the used method by comparingParametric analyses are conducted to explore the influences of the matric suction on the stability of layeredresults show that larger suction stress provided in unsaturated clay dominates the stability of the layeredInfiltration/evaporation can obviously affect the stability of unsaturated layered slopes, but their

Keywords： slope stability     suction stress     unsaturated soil     layered slope     limit equilibrium    

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Steel Compoisite Structural Pressure Vessel Technology

Zhu Guohui,Zhu Li,Zheng Jinyang,Zheng Chuanxiang,Chen Zhiping,Wu Hongmei

Strategic Study of CAE 2001, Volume 3, Issue 7,   Pages 79-84

Abstract:

A Unique idea of an advanced Multi - Functional Shell and Long Period Developing Radical RequirementThe main characteristics of the multi - functional shell burst arrested and resisted, manufacture simplified

Keywords： pressure vessel technology     steel composites structure     multi-function shell     steel ribbon cross-helicalwound     total double layered     burst arrested and resisted    

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Finite element model updating of a large structure using multi-setup stochastic subspace identification

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 4,   Pages 965-980 doi: 10.1007/s11709-019-0530-x

Abstract: bees optimization algorithm are utilized to update the finite element model of a solar power plant structureuncertain parameters including geometry, material properties and boundary conditions of the aforementioned structureThe natural frequencies of the solar power plant structure are estimated by multi-setup stochastic subspaceThe proposed algorithm is efficiently implemented on the solar power plant structure located in Shahid

Keywords： operational modal analysis     solar power plant structure     multi-setup stochastic subspace     bees optimization    

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Construction of an Unusual Two-Dimensional Layered Structure for Fused-Ring Energetic Materials with Article

Yongan Feng, Mucong Deng, Siwei Song, Sitong Chen, Qinghua Zhang, Jean’ne M. Shreeve

Engineering 2020, Volume 6, Issue 9,   Pages 1006-1012 doi: 10.1016/j.eng.2020.01.013

Abstract: Here, we report on a promising fused-ring energetic material with an unusual twodimensional (2D) structure, 4-nitro-7-azido-pyrazol-[3,4-d]-1,2,3 triazine-2-oxide (NAPTO), whose unique 2D structureTo our knowledge, NAPTO is the first fused-ring energetic material with 2D layered crystal stacking.using molecular simulations, and the theoretical calculation results demonstrate that the ultraflat 2D layeredOur study reveals the great promise of the fused-ring 2D layered structure for creating advanced energetic

Keywords： Energetic materials     Fused heterocycles     2D layered structure     High energy     Stability Sensitivity    

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Hierarchical fractal structure of perfect single-layer graphene

T. Zhang, K. Ding

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 4,   Pages 371-382 doi: 10.1007/s11465-013-0279-1

Abstract:

The atomic lattice structure of perfect single-layer graphene that can actually be regarded as a kindof hierarchical fractal structure from the perspective of fractal geometry was studied for the firstThe interior fractal-type structure was discovered to be the fifth space-filling curve from physicalThe outer boundary curve had a fractal dimension equal to one, and a multi-fractal structure from a naturallyA fundamental example of a multi-fractal structure was also presented.

Keywords： hierarchical fractal structure     fractal dimension     the fifth space-filling curve     multi-fractal structure    

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Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1372-1389 doi: 10.1007/s11709-021-0772-2

Abstract: Acoustic emission and digital image correlation were used to study the spatiotemporal evolution characteristics of crack extension of soft and hard composite laminated rock masses (SHCLRM) containing double fissures under uniaxial compression. The effects of different rock combination methods and prefabricated fissures with different orientations on mechanical properties and crack coalescence patterns were analyzed. The characteristics of the acoustic emission source location distribution, and frequency changes of the crack evolution process were also investigated. The test results show that the damage mode of SHCLRM is related to the combination mode of rock layers and the orientation of fractures. Hard layers predominantly produce tensile cracks; soft layers produce shear cracks. The first crack always sprouts at the tip or middle of prefabricated fractures in hard layers. The acoustic emission signal of SHCLRM with double fractures has clear stage characteristics, and the state of crack development can be inferred from this signal to provide early warning for rock fracture instability. This study can provide a reference for the assessment of the fracture development status between adjacent roadways in SHCLRM in underground mines, as well as in roadway layout and support.

Keywords： soft−hard composite layered rock mass     double cracks     crack evolution     acoustic emission     digital image    

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Title Author Date Type Operation

Anisotropy of multi-layered structure with sliding and bonded interlayer conditions

Lingyun YOU, Kezhen YAN, Jianhong MAN, Nengyuan LIU

Journal Article

Quantification of seepage in a multi-layered disconnected river-aquifer system

Jiang LI, Haizhu HU, Xiaomin MAO, Yi LIU

Journal Article

Mechanical responses of multi-layered ground due to shallow tunneling with arbitrary ground surface load

Journal Article

Assessing artificial neural network performance for predicting interlayer conditions and layer modulus of multi-layered

Lingyun YOU, Kezhen YAN, Nengyuan LIU

Journal Article

purification of trace thallium(I)-contaminated potable water using a high-selective filter paper with multi-layered

Journal Article

Shaking table testing of hard layered soil-pile-structure interaction system

LI Peizhen, REN Hongmei, LU Xilin, SONG Heping, CHEN Yueqing

Journal Article

Fabrication of layered structure VS anchor in 3D graphene aerogels as a new cathode material for lithium

Journal Article

Fabrication of layered structure VS

Lijun WU, Yu ZHANG, Bingjiang LI, Pengxiang WANG, Lishuang FAN, Naiqing ZHANG, Kening SUN

Journal Article

Uncertain and multi-objective programming models for crop planting structure optimization

Mo LI,Ping GUO,Liudong ZHANG,Chenglong ZHANG

Journal Article

Stability analysis of layered slopes in unsaturated soils

Guangyu DAI; Fei ZHANG; Yuke WANG

Journal Article

Steel Compoisite Structural Pressure Vessel Technology

Zhu Guohui,Zhu Li,Zheng Jinyang,Zheng Chuanxiang,Chen Zhiping,Wu Hongmei

Journal Article

Finite element model updating of a large structure using multi-setup stochastic subspace identification

Reza KHADEMI-ZAHEDI, Pouyan ALIMOURI

Journal Article

Construction of an Unusual Two-Dimensional Layered Structure for Fused-Ring Energetic Materials with

Yongan Feng, Mucong Deng, Siwei Song, Sitong Chen, Qinghua Zhang, Jean’ne M. Shreeve

Journal Article

Hierarchical fractal structure of perfect single-layer graphene

T. Zhang, K. Ding

Journal Article

Crack evolution of soft–hard composite layered rock-like specimens with two fissures under uniaxial compression

Journal Article