Results 51 to 60 of about 1,821 (184)

Water-immersion softening mechanism of coal rock mass based on split Hopkinson pressure bar experiment

International Journal of Coal Science & Technology, 2022
The coal mining process is affected by various water sources such as groundwater and coal seam water injection. Understanding the dynamic mechanical parameters of water-immersed coal is helpful for coalmine safe production.
Zhiyuan Liu, Gang Wang, Jinzhou Li, Huaixing Li, Haifeng Zhao, Hongwei Shi, Jianli Lan   +6 more
doaj   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Stress Redistribution Mechanisms and Subsidence Control of Fluidized Gangue Backfilling in Underground Coal Mining: Integrated Experimental and Numerical Investigation

Energy Science &Engineering, EarlyView.
Fluidized gangue backfilling controls mining subsidence through stress redistribution in composite backfill‐pillar systems, reducing surface settlement and stress concentrations. Multi‐scale experimental and numerical analysis provides quantitative design parameters for optimizing ground control in sustainable underground coal mining operations ...
Weilong Zhang, Jie Zhang, Yuanzhen Zhang, Wenjing Liu, Liang Li, Deyi Nan, Guannan Zhao, Chen Yang, Haiqing Bian, Hua Shao, Xiao Zuo, Changtai Zhou   +11 more
wiley   +1 more source

Environmental and temporal factors affecting record white‐tailed deer antler characteristics in Ontario, Canada

The Journal of Wildlife Management, EarlyView.
Antler characteristics are influenced by a combination of genetics, age, and environmental factors, notably habitat quality and resource availability. In this study, we explored how diverse environmental factors, including climate and land cover composition, affect antler size, tine configuration, and the distribution of record‐scoring white‐tailed ...
Brooklyn S. Cars, Joseph M. Northrup, Keith Beasley, Paul Beasley, Kevin Beasley, Aaron B. A. Shafer   +5 more
wiley   +1 more source

Failure Mechanisms of Short Fiber Reinforced Composite Materials Subjected to Dynamic Loading

Polymer Composites, EarlyView.
Failure Mechanisms of Short Fiber Reinforced Composite Materials Subjected to Dynamic Loading. ABSTRACT The mechanical behavior of short carbon fiber reinforced polylactic acid (SCF/PLA) composites fabricated by fused deposition modeling (FDM) is crucial for engineering applications, yet their strain‐rate dependence is not fully understood.
Hui Liu, James P. Dear, Jin Zhou, Yugang Duan, Zhongwei Guan, Wesley J. Cantwell, John P. Dear   +6 more
wiley   +1 more source

High strain rate tensile testing of sheet materials using three Hopkinson pressure bars

EPJ Web of Conferences, 2012
In an attempt to circumvent the inherent problems associated with Split Hopkinson Tensile Bar (SHTB) systems, a new experimental technique is proposed for the high strain rate tensile testing of sheet specimens in Split Hopkinson Pressure Bar (SHPB ...
Gary G., Dunand M., Mohr D.
doaj   +1 more source

Pandemic Geographies of Home: Domestic Thresholding in Response to COVID‐19

Transactions of the Institute of British Geographers, EarlyView.
Short Abstract With the home at the forefront of political and public health responses to COVID‐19, the thresholds between domestic space and the world beyond acquired a new significance in people's everyday lives. This paper introduces the concept of ‘thresholding’ to explore the ways in which internal and external thresholds are understood and ...
Alison Blunt, Kathy Burrell, Annabelle Wilkins, Georgina Endfield, Miri Lawrence, Eithne Nightingale, Alastair Owens, Jacqueline Waldock   +7 more
wiley   +1 more source

Formation Mechanism of BN Flakes on MWCNTs

Small, Volume 22, Issue 15, 12 March 2026.
This work presents a novel heterostructured h‐BN flake‐coating on multi‐wall carbon nanotubes synthesized via CVD. It details structural characterization supported by molecular dynamics simulations. The mechanism of BN flake formation, stress‐induced buckling, and van der Waals heterostructure design is discussed, highlighting applications in thermal ...
Tongshan Liu, Xingyi Yan, David G. Hopkinson, Christopher S. Allen, Barbara M. Maciejewska, Mark Wilson, Nicole Grobert   +6 more
wiley   +1 more source

Subduction Zone Magnetism: The Influence of Metamorphism and Serpentinization in the Mantle Wedge

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract Subduction zone magnetic anomalies have previously been used to infer their thermal structure assuming a uniformly serpentinized mantle carries a homogeneous, isotropic magnetization. However, seismic tomography, geological observations and numerical modeling provide increasing evidence for a non‐uniformly serpentinized mantle wedge that may ...
Y. Li, P. C. Lindquist, D. Han, B. Fish, R. J. Harrison, W. McCarthy, R. M. Palin, C. B. Condit, C. I. O. Nichols   +8 more
wiley   +1 more source

Study of adiabatic localized shear in metals by split Hopkinson pressure bar method

EPJ Web of Conferences, 2011
This paper is devoted to the technique for study of localized shear using hat-shaped samples by the split Hopkinson pressure bar (SHPB) method. Also it is devoted to results obtained in tests with samples of copper M1 and steel 09G2S.
Kal’manov A., Podurets A., Bol’shakov A., Yurlov A., Pushkov V., Koshatova E.   +5 more
doaj   +1 more source