Results 81 to 90 of about 3,889 (269)

Experimental Study on Drainage of Strata Water-Bearing and Permeability in Huangyuchuan Coal Mine

Meikuang Anquan, 2020
The pumping test was carried out by arranging pumping holes in the ground of Huangyuchuan Mine to test the water inflow, permeability coefficient and influence radius of different hole positions, and to master the characteristics of water and ...
WU Hongtao, CHEN Jiangfeng, WANG Chongping, DOU Hao3
doaj   +1 more source

Field‐Programmed Anisotropy in Magneto‐Piezoelectric Composites for Material‐Encoded Mechanoperception

Advanced Materials, EarlyView.
Field‐programmed anisotropy imparts material‐level intelligence to soft composites. Magnetic torque dynamics drive magneto‐piezoelectric nanowires from random dispersion into deterministic axial alignment. The resulting hierarchical percolation networks confine electromechanical coupling to specific axes and intrinsically decouple superposed force ...
Yubin Kim, Yumin Kwon, Dabin Kim, Minsun Oh, Jin Young Jung, Dongyeong Gim, Kootak Hong, Jun Yeon Hwang, Sang‐Woo Kim, Minjeong Ha   +9 more
wiley   +1 more source

Can Elastomers Combine Stiffness, Toughness and Fatigue Resistance?

Advanced Materials, EarlyView.
This review studies how the molecular and macroscopic architecture of elastomers influence their mechanical properties including: stiffness, stretchability, toughness, fatigue resistance, and damping behavior. By linking the structure to performance, it proposes design principles for advanced elastomeric systems that combine mechanical properties ...
Eva Baur, Esther Amstad
wiley   +1 more source

Study on Numerical Simulation of Overburden Fracture Development Characteristics and Prediction of Water-Conducting Fracture Zone Height in Shallow Coal Seam Mining [PDF]

The northern Shanxi mining region, a pivotal coal-rich area in China, is characterized by substantial reserves of shallow coal seams and distinctive geological mining conditions that exacerbate overburden rock fissure development.
Boqing Qiao, Yingming Yang, Yang Cai, Yongqiang Zhao, Xuejia Li, Qingbiao Guo   +5 more
core   +1 more source

High‐Entropy Ceramic‐Enhanced Deformable Triboelectric Nanogenerator for Noncontact Biomechanical and Raindrop Energy Harvesting

Advanced Materials, EarlyView.
A large‐area, deformable high‐entropy‐ceramic (HEC)‐doped triboelectric nanogenerator with a trilayer architecture is developed, consisting of an HEC‐doped triboelectric layer, a graphite‐like textile charge‐storage layer, and stretchable carbon black electrodes.
Shengyou Li, Wei‐Chen Peng, Syun‐Hong Chou, Zhi‐Xian Yan, Jiann‐Yeu Chen, Dun‐Jie Jhan, Wei‐Chun Yang, Shi‐Hong Chen, Yi‐Lin Huang, Cheng‐Hung Tsai, Ming‐Yen Lu, Heng‐Jui Liu, Cheolmin Park, Ying‐Chih Lai   +13 more
wiley   +1 more source

Broken strata upper three-zone model over goaf. [PDF]

h1: failure zone; h2: fracture zone; h3: bending zone; h: water-conducting fracture zone.
Jin Han (9149), Weiqiang Zhang (1333392), Mei Qiu (285895), Longqing Shi (3685087), Xingyue Qu (10699248)   +4 more
core   +1 more source

Angstrom‐Scale Confined Ion Sieve and Accelerator for Efficient Aqueous Zinc Batteries

Advanced Materials, EarlyView.
An angstrom‐scale confined ion accelerator strategy is proposed for ultra‐stable aqueous Zn anodes. Selective and precise transport of hydrated Zn(H2O)62+, Zn2+ cations, H2O molecules, and SO42− anions is achieved by in‐plane atomic Ti vacancies and angstrom‐scale interlayer free spacing within the Ti0.87O2 interfacial layer, leading to homogeneous Zn ...
Xing Peng, Caichao Ye, Yingqiang Li, Zhihang Liu, Kunxi Luan, Jinbo Fan, Honglan Huang, Chao Liu, Na Shen, Zhen Hou, Wenyao Zhang, Yongsheng Fu, Mingzhe Chen, Linfeng Hu, Pan Xiong, Guoxiu Wang, Junwu Zhu   +16 more
wiley   +1 more source

Intelligent prediction of development height of water-conducting fracture zone based on SSA-RF model

Meitan kexue jishu
In the coal mining process, the development height of the water-conducting fracture zone directly affects the water hazard risk of the mine, and accurately predicting the development height of the water-conducting fracture zone is crucial for ensuring ...
Zhongchang WANG, Xiaohang TANG, Wenquan ZHANG, Yongjun WANG, Jiayu FAN, Wenmao LYU   +5 more
doaj   +1 more source

High‐Performance Bio‐Glue From the Berries of a Parasitic Plant

Advanced Materials, EarlyView.
We report a fully bio‐based adhesive derived primarily from a (poly)saccharide extract obtained from the berries of the hemi‐parasitic plant mistletoe (Viscum album), supplemented with tannic and malic acid without any further chemical functionalization.
Ufuk Gürer, Jana T. Reh, Jonas Röder, Umut Günsel, Chiara Gunnella, Lisa Schöbel, Franz Hagn, Aldo R. Boccaccini, Oliver Lieleg   +8 more
wiley   +1 more source

Broken strata upper four-zone model over goaf. [PDF]

h1: failure zone; h2: fracture zone; h3: rock-separation zone; h4: bending zone; h: water-conducting fracture zone.
Jin Han (9149), Weiqiang Zhang (1333392), Mei Qiu (285895), Longqing Shi (3685087), Xingyue Qu (10699248)   +4 more
core   +1 more source