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Unified description of sand behavior

Feng ZHANG, Bin YE, Guanlin YE

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 121-150 doi: 10.1007/s11709-011-0104-z

Abstract: In this paper, the mechanical behavior of sand, was systematically described and modeled with a elastoplastic model proposed by Zhang et al. [ ]. Without losing the generality of the sand, a specific sand called as Toyoura sand, a typical clean sand found in Japan, has been discussed in detail. In the model, the results of conventional triaxial tests of the sand under different loading and drainage conditions were simulated with a fixed set of material parameters. The model only employs eight parameters among which five parameters are the same as those used in Cam-clay model. Once the parameters are determined with the conventional drained triaxial compression tests and undrained triaxial cyclic loading tests, then they are fixed to uniquely describe the overall mechanical behaviors of the Toyoura sand, without changing the values of the eight parameters irrespective of what kind of the loadings or the drainage conditions may be. The capability of the model is discussed in a theoretical way.

Keywords： constitutive model     sand     stress-induced anisotropy     density     structure    

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Aspects of rock permeability

Lianyang ZHANG

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 2,   Pages 102-116 doi: 10.1007/s11709-013-0201-2

Abstract: The factors discussed include stress, depth, temperature, and discontinuity intensity and aperture.paper also highlights the scale effect on rock permeability, interconnectivity of discontinuities, and anisotropy

Keywords： rock     permeability     discontinuity     stress     temperature     scale effect     anisotropy    

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Analysis on annealing-induced stress of blind-via TSV using FEM

Jie SHAO, Tielin SHI, Li DU, Lei SU, Xiangning LU, Guanglan LIAO

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 3,   Pages 401-410 doi: 10.1007/s11465-017-0457-7

Abstract: However, in TSV manufacturing, thermo-mechanical stress is induced during the annealing process, oftenTop interface stress analysis on the TSV structure shows that the curvature of via openings releasesstress concentration that leads to ~60 MPa decrease of normal stresses,  Keywords： through silicon via (TSV)     annealing-induced stress     interface stress     plastic deformation     finite element    

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Experimental study on compaction-induced anisotropic mechanical property of rockfill material

Xiangtao ZHANG, Yizhao GAO, Yuan WANG, Yu-zhen YU, Xun SUN

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 1,   Pages 109-123 doi: 10.1007/s11709-021-0693-0

Abstract: The anisotropy of rockfill materials has a significant influence on the performance of engineering structuresFurthermore, the anisotropy test of rockfill materials is complex and complicated, especially for triaxialThe results reveal that the principal stress direction angle has a significant effect on the modulus,Analysis of the relationship between the principal stress direction angles, change in the stress stateeffect, causing the specimen to exhibit different degrees of anisotropy.

Keywords： rockfill     inclination of specimen preparation     anisotropy     mechanical property     mechanism    

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The early signal substances induced by heat stress in brains of mice

WANG Chunxu, WANG Hanxing

Frontiers of Medicine 2008, Volume 2, Issue 4,   Pages 391-395 doi: 10.1007/s11684-008-0075-1

Abstract: To study the effects of early signal substances induced by heat stress in brains of Kunming mice, six-month-oldmice ( = 72) were pretreated with heat stress and subsequent ischemia/reperfusion by clipping of theirdifferent treatments, animals were randomly divided into four groups: (1) normal control group; (2) heat stressfollowed by ischemia and reperfusion group (HS/IR); (3) ischemia and reperfusion group (IR); (4) heat stressThe results indicate that heat stress can induce CREB expression, which in turn stimulates CGRP secretion

Keywords： calcitonin gene-related     subsequent ischemia/reperfusion     computer     cerebrum     CGRP excretion    

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Fault-Induced Coal Burst Mechanism under Mining-Induced Static and Dynamic Stresses Article

Wu Cai, Linming Dou, Guangyao Si, Yawei Hu

Engineering 2021, Volume 7, Issue 5,   Pages 687-700 doi: 10.1016/j.eng.2020.03.017

Abstract: of static and dynamic stresses, which include two kinds of fault reactivations from: mining-inducedquasi-static stress (FRMSS)-dominated and seismic-based dynamic stress (FRSDS)-dominated.The results show that fault-induced coal burst is triggered by the superposition of high static stressin the fault pillar and dynamic stress from fault reactivation.High static stress comes from the interaction of the fault and the roof structure, and dynamic stress

Keywords： Coal burst     Fault reactivation     Mining-induced stress     Seismic-based dynamic stress     Fault pillar    

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Investigation of tangential strain caused by shrinkage anisotropy using image analytical method

Fu Zongying,Zhao Jingyao and Cai Yingchun

Strategic Study of CAE 2014, Volume 16, Issue 4,   Pages 25-29

Abstract: elastic strain,viscoelastic creep strain, and mechano-sorptive (MS) creep, which caused by shrinkage anisotropyAlso we analyzed the stress in different moisture content (MC) and the relations between stress and strainbelow the fiber saturation point (FSP), the wood disks were initially subject to tangential tensile stress; with the decreasing MC, the tensile stress turned into compressive stress.The relations between stress and strain were complex.

Keywords： image analytical method     wood disks     shrinkage anisotropy     drying stress     tangential strain    

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Apigenin alleviates neomycin-induced oxidative damage via the Nrf2 signaling pathway in cochlear hair

Frontiers of Medicine 2022, Volume 16, Issue 4,   Pages 637-650 doi: 10.1007/s11684-021-0864-3

Abstract: Oxidative stress plays an important role in the pathogenesis of aminoglycoside-induced hearing loss andapigenin, a natural flavonoid with anticancer, anti-inflammatory, and antioxidant activities, on neomycin-inducedDisruption of the Nrf2 axis abolished the effects of apigenin on the alleviation of oxidative stress

Keywords： apigenin     aminoglycosides     ototoxicity     oxidative stress     Nrf2 signaling pathway    

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Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Frontiers of Mechanical Engineering 2011, Volume 6, Issue 3,   Pages 287-291 doi: 10.1007/s11465-011-0230-2

Abstract: differential model is constructed for the coupled hysteretic dynamics via modeling the orientation switching inducedHysteresis loops associated with stress induced polarization switching and butterfly-shaped behaviorThe effects of mechanical loadings on the electrically induced switching are numerically investigated, as well as the mechanically-induced switching with various bias electric fields.

Keywords： differential model     state space     electromechanical switching     butterfly effects     hysteresis    

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Study on TA2 Sheet Metal Bending With Thermal Stress Induced by Laser and Its Mechanical Properties

Zhou Yijun,Zhang Yongkang,You Wenming,Yin Chen,Zhang Chengyang

Strategic Study of CAE 2007, Volume 9, Issue 10,   Pages 40-44

Abstract: 5 kW CO2 laser,  a HVS-1000 Micro-hardness measuring instrument and an X-350A X-ray stress6mm-thickn sheet steel of TA2 was studied to evaluate the process parameters of bending with thermal stressinduced by laser. Distribution of residual stress on the surface and variation of micro-hardness on the cross section Parameters of laser forming also have some influence on the distribution of residual stress on

Keywords： laser technology     thermal stress     sheet metal bending     residual stress     micro-hardness    

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Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 6,   Pages 1480-1493 doi: 10.1007/s11709-021-0776-y

Abstract: In waterfront geotechnical engineering, seismic and drainage conditions must be considered in the design of retaining structures. This paper proposes a general analytical method to evaluate the seismic active earth pressure on a retaining wall with backfill subjected to partial steady seepage flow under seismic conditions. The method comprises the following steps: i) determination of the total head, ii) upper bound solution of seismic active earth thrust, and iii) deduction for the earth pressure distribution. The determination of total head h(x,z) relies on the Fourier series expansions, and the expressions of the seismic active earth thrust and pressure are derived by using the upper bound theorem. Parametric studies reveal that insufficient drainage and earthquakes are crucial factors that cause unfavorable earth pressure. The numerical results confirm the validity of the total head distribution. Comparisons indicate that the proposed method is consistent with other relevant existing methods in terms of predicting seismic active earth pressure. The method can be applied to the seismic design of waterfront retaining walls.

Keywords： seismic active earth pressure     partial seepage flow     pore pressure     anisotropy     upper bound theorem    

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Phosphorene: Current status, challenges and opportunities

Anandarup Goswami, Manoj B. Gawande

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 296-309 doi: 10.1007/s11705-018-1783-y

Abstract: The field of 2-dimensional (2D) materials has witnessed a sharp growth since its inception and can majorly be attributed to the substantial technical and scientific developments, leading to significant improvements in their syntheses, characterization and applications. In the list of 2D materials, the relatively newer addition is phosphorene, which ideally consists of a single layer of black phosphorous. Keeping in mind the past, and ongoing research activities, this short account offers a brief overview of the present status and the associated challenges in the field of phosphorene-related research, with special emphasis on their syntheses, properties, applications and future opportunities.

Keywords： phosphorene     black phosphorous     anisotropy     single layer     thermoelectric     chemical vapor deposition     catalysis    

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Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 1,   Pages 110-122 doi: 10.1007/s11709-018-0476-4

Abstract: This study was conducted to analyze the influence of anisotropy, modulus gradient properties, and theplane on the mechanical behaviors of AC overlays, as well as to quantify the influence of the degree of anisotropyComparing the mechanical behavior in terms of surface deflection, stress, and strain of the anisotropyIn addition, the maximum shear stress in the AC overlay was the most significant output parameter affectedby the degree of anisotropy.

Keywords： asphalt concrete overlay     anisotropy     temperature gradients     modulus gradients     finite element simulation    

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Treatment of gingival hyperplasia induced by cyclosporine A

MA Jingzhi, LI Ming, CAO Yingguang

Frontiers of Medicine 2008, Volume 2, Issue 3,   Pages 290-294 doi: 10.1007/s11684-008-0055-5

Abstract: The clinical therapy for cyclosporine A (CsA)-induced gingival hyperplasia (GH) and the pathologicalNine cases of CsA-induced GH after renal transplantation were subjected to periodontal non-surgical treatment

Keywords： post-transplantation     Gingival     cytoplasmic     CsA-induced     further    

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EFFECTS OF TRANSPORT STRESS ON THE INTESTINES INVOLVING NEURONAL NITRIC OXIDE SYNTHASE

Frontiers of Agricultural Science and Engineering   Pages 285-295 doi: 10.15302/J-FASE-2022469

Abstract:

● Transport stress declined the level of leukocytes including lymphocytes

Keywords： intestine     nNOS     nNOS-positive neurons     transport stress    

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Title Author Date Type Operation

Unified description of sand behavior

Feng ZHANG, Bin YE, Guanlin YE

Journal Article

Aspects of rock permeability

Lianyang ZHANG

Journal Article

Analysis on annealing-induced stress of blind-via TSV using FEM

Jie SHAO, Tielin SHI, Li DU, Lei SU, Xiangning LU, Guanglan LIAO

Journal Article

Experimental study on compaction-induced anisotropic mechanical property of rockfill material

Xiangtao ZHANG, Yizhao GAO, Yuan WANG, Yu-zhen YU, Xun SUN

Journal Article

The early signal substances induced by heat stress in brains of mice

WANG Chunxu, WANG Hanxing

Journal Article

Fault-Induced Coal Burst Mechanism under Mining-Induced Static and Dynamic Stresses

Wu Cai, Linming Dou, Guangyao Si, Yawei Hu

Journal Article

Investigation of tangential strain caused by shrinkage anisotropy using image analytical method

Fu Zongying,Zhao Jingyao and Cai Yingchun

Journal Article

Apigenin alleviates neomycin-induced oxidative damage via the Nrf2 signaling pathway in cochlear hair

Journal Article

Stress induced polarization switching and coupled hysteretic dynamics in ferroelectric materials

Linxiang WANG, Roderick MELNIK, Fuzai LV

Journal Article

Study on TA2 Sheet Metal Bending With Thermal Stress Induced by Laser and Its Mechanical Properties

Zhou Yijun,Zhang Yongkang,You Wenming,Yin Chen,Zhang Chengyang

Journal Article

Upper bound solution to seismic active earth pressure of submerged backfill subjected to partial drainage

Journal Article

Phosphorene: Current status, challenges and opportunities

Anandarup Goswami, Manoj B. Gawande

Journal Article

Effect of anisotropic characteristics on the mechanical behavior of asphalt concrete overlay

Lingyun YOU, Zhanping YOU, Kezhen YAN

Journal Article

Treatment of gingival hyperplasia induced by cyclosporine A

MA Jingzhi, LI Ming, CAO Yingguang

Journal Article

EFFECTS OF TRANSPORT STRESS ON THE INTESTINES INVOLVING NEURONAL NITRIC OXIDE SYNTHASE

Journal Article