Results 41 to 50 of about 1,913 (181)

Sexual Dimorphism as a Potential Driver of Trophic Specialisation in a Sedentary Synanthropic Bat Species

Ecology and Evolution, Volume 16, Issue 8, August 2026.
Female common serotine bats (Cnephaeus serotinus) are consistently larger than males in forearm length, wing area and mandibular dimensions related to bite force. Wing dimorphism reflects isometric size scaling rather than shape divergence, suggesting compensation for pregnancy‐related mass increases.
Maryna Yerofieieva, Olena Holovchenko, Dina K. N. Dechmann, Anton Vlaschenko   +3 more
wiley   +1 more source

Shear Fault Formation in Granite Under High and Transient Co‐Seismic Strain Rates Unveiled by Ultra‐Fast X‐Ray Imaging

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract During an earthquake a dynamic rupture propagates, causing fractures and permanent damage that modify the mechanical properties of the fault and its surroundings. Reciprocally, the energy dissipated by the mechanical transformation of the fault rock has a direct feedback on the dynamics of the seismic rupture.
A. R. Vishnu, Mai‐Linh Doan, James Hollingsworth, Fabian Barras, Benoît Cordonnier, François Renard   +5 more
wiley   +1 more source

High-strain-rate mechanical response of HTPE propellant under SHPB impact loading

AIP Advances, 2021
The high-strain-rate dynamic response of a hydroxyl-terminated polyether (HTPE) propellant during impact loading is essential for assessing the structural reliability and impact safety of HTPE propellant.
Heng-ning Zhang, Hai Chang, Jun-qiang Li, Xiao-jiang Li, Han Wang   +4 more
doaj   +1 more source

Dynamic tensile strength and fracture evolution of characteristic shale with bedding and hole using linear regression theory

Deep Underground Science and Engineering, Volume 5, Issue 2, Page 426-445, June 2026.
The spiral conical perforations generated during methane in situ explosion fracturing operations lead to tensile fracture propagation in shale reservoirs being governed by the combined effects of impact pressure, bedding, and aperture under explosive loading. Using multiple regression analysis and digital image correlation technology, the mechanisms of
Yabo Chai, Ning Luo, Jianan Zhou, Haohao Zhang, Penglong Li, Yu Wang, Cheng Zhai, Tianran Ma   +7 more
wiley   +1 more source

Bioinspired Regenerative Lignification Enables Ultra‐Hard and Sustainable Bamboo Structural Materials

Exploration, Volume 6, Issue 3, June 2026.
Developing strong and sustainable materials is essential for reducing reliance on metals and lowering carbon emissions. Inspired by how plants naturally harden their cell walls, we created a rapid process that transforms bamboo into an ultra‐hard structural material by rebuilding lignin‐like networks within its structure.
Jian Gan, Shaodi Zhang, Yuxiang Huang, Wenji Yu   +3 more
wiley   +1 more source

Experimental Investigations on the Energy Absorption of Aluminum TPMS Structures Under Dynamic Loading

Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.
ABSTRACT Triply periodic minimal surfaces (TPMS) constitute a prominent class of cellular structures and have gained considerable attention in current research. These structures are genus‐infinite surfaces with zero mean curvature, which prevents self‐intersection. They also exhibit periodicity in all three spatial directions and exhibit enhanced multi‐
Sören Bieler, Denis Anders, Marcel Walkowiak, Kerstin Weinberg   +3 more
wiley   +1 more source

Superior Impact‐Resistant Composite Hydrogels Through an Ionic Coupling Strategy

Advanced Materials, Volume 38, Issue 26, 8 May 2026.
An ionic coupling strategy is developed to simultaneously reinforce networks and interfaces in composite hydrogels. Sodium citrate acts as a single multifunctional ionic coupler to strengthen the poly(vinyl alcohol) matrix via the Hofmeister effect, reinforce the chitosan–sodium alginate nanofiber network via desolvation and electrostatic crosslinking,
Hao Zhuo, Quyang Liu, Xinyu Dong, Hongzhi Zheng, Lingyi Hong, Wei Zhai   +5 more
wiley   +1 more source

Design of Initial Mining Pressure Relief Scheme for Large‐Size Mining Face: A Case Study

Engineering Reports, Volume 8, Issue 4, April 2026.
The numerical simulation analysis method is used to compare the actual mining face (315 m) with the designed mining face (200 m). The results show that the large mining height working face has larger abutment pressure peak and stress concentration factor than the general mining height working face.
Qinghu Wei, Ming Ji, Biao Huang, Kang Guo   +3 more
wiley   +1 more source

Explosion pressure of compressed gas based on thin-film pressure sensors

Yantu gongcheng xuebao
Sensors play a crucial role in monitoring gas explosion hazards in underground structures such as tunnels, subways and mine shafts. Due to the complexity of compressed gas explosion test environments and the irregularity of sensor installation surfaces ...
HONG Chengpeng, LIANG Guanwen, FU Haoran , YAN Zizhuang, BIAN Xuecheng, CHEN Yunmin
doaj   +1 more source

Study on the Energy Evolution and Stability of Roadway Surrounding Rock Under the “Simultaneous Mining–Driving” Condition

Energy Science &Engineering, Volume 14, Issue 4, Page 2225-2247, April 2026.
Based on theoretical analysis, the energy‐evolution behavior of the surrounding rock at various depths on the solid‐coal side of the 221303 material roadway during the “advancing‐toward‐mining” process was first clarified. Numerical simulations were then performed to validate and elaborate on the theoretical results.
Wei Zhang, Peilin Gong, Kang Yi, Guang Wen, Libin Bai, Lizhu Liu, Chen Gong, Peng Li   +7 more
wiley   +1 more source