Results 111 to 120 of about 6,878 (277)

Research on the Development Height Prediction Model of Water-Conduction Fracture Zones under Conditions of Extremely Thin Coal Seam Mining

Addressing the difficult problem of predicting the height of water-conducting fracture zones in shallow and thin coal seams, a prediction model of water-conduction fracture zones based on a backpropagation (BP) neural network was developed by integrating
Lei Li, Yuxin Yuan, Jiahao Tian, Hongsheng Wang, Dengfeng Chen, Bin Li   +5 more
core   +1 more source

Double‐Sided Mechanical Interlocking Enables Soft‐Rigid Conductive Interfaces With a Record High Toughness for Flexible Electronics

Advanced Materials, EarlyView.
A double‐sided mechanical interlocking strategy is developed to create robust electrical contact between polymer electrode and metal interconnect. The fibrous structure enables formation of thread–hole adhesion, which only breaks under bulk failure and achieves a record high interfacial energy exceeding 730 J·m−2. This adhesion secures the integrity of
Gang Li, Minkun Cai, Chunyan Cao, Zengbai Ouyang, Hong Fu, Lingyu Zhao, Bingang Xu   +6 more
wiley   +1 more source

Electrical response and dynamic monitoring of overburden failure in thin bedrock working face

Meitan xuebao
Coal seam mining under thin bedrock with thick unconsolidated layers can lead to hydraulic connections between the working face and the overlying unconsolidated aquifer, potentially inducing water inrush and sand outburst disasters that severely threaten
Jun ZHANG, Shengdong LIU, Cai YANG, Ge CHEN, Jinwei FANG, Ya DONG   +5 more
doaj   +1 more source

A Unified Polymer Hydrogel Electrolyte Integrating Robust Adhesion, Self‐Healing, and Oxygen Permeability in Flexible Neutral Zn‐Air Batteries

Advanced Materials, EarlyView.
Flexible neutral Zn‐air batteries achieving a remarkable 3000‐cycle lifespan and withstanding 1000 bending cycles are reported. This performance is realized by employing a 3D physically cross‐linked neutral hydrogel electrolyte that integrates high adhesion, self‐healing, O2 permeability, and CO2 tolerance to resolve critical stability challenges ...
Zhenyu Sun, Kaiming Liao, Wei Zhou, Zongping Shao   +3 more
wiley   +1 more source

Dynamic monitoring of water-conducting fractures in reclining Buddha area of Baoding Mountain, Dazu Rock Carvings, Chongqing using electrical resistivity tomography

Shuiwen dizhi gongcheng dizhi
To address seepage issues caused by water-conducting fractures in the Reclining Buddha area of Baoding Mountain at the Dazu Rock Carvings, and to overcome the limitations of traditional survey methods in characterizing such features, this study employed ...
Teng XIA, Kai YANG, Jinhua WANG, Zhiyu XU, Xingzhi WEI, Deqiang MAO   +5 more
doaj   +1 more source

E. coli Extracellular Matrix: A Tunable Composite With Hierarchical Structure

Advanced Materials, EarlyView.
The complex composite‐like mechanical behavior of E. coli biofilm matrix is the result of a synergic contribution of the rigid curli and swelling pEtN‐cellulose, and emerges from specific ratio and assembly conditions. The interactions between the two fibers govern biofilm hydration and characteristic wrinkling patterns, providing crucial insights for ...
Macarena Siri, Agustín Mangiarotti, Anne Seewald, Nikolai Rosenthal, Shahrouz Amini, Emeline Raguin, Peter Fratzl, Cécile M. Bidan   +7 more
wiley   +1 more source

Size effect of Water-flowing fracture Zone height based on FLAC

, 2020
The loss of water resources caused by mining fissures is a key factor restricting the green development of coal resources in western mining areas. in order to analyze the influence of mining thickness and face width on the development height of water ...
Chao Zheng, Lan Yu, Ning Sun, Jiangyi He, Hualong Zhou   +4 more
core   +1 more source

Surface‐Functionalized LLZO‐Incorporated Multilayer Composite Solid Electrolytes for Dendrite Suppression and Efficient Ionic Conduction in Lithium–Metal Batteries

Advanced Materials, EarlyView.
A soft–hard tri‐layer composite electrolyte that couples fast Li+ transport with reinforced interfacial stability to enable high‐conductivity, mechanically robust, dendrite‐free lithium‐metal batteries. ABSTRACT The development of solid polymer electrolytes is central to safe, high‐energy lithium‐metal batteries (LMBs); however, persistent challenges ...
Fazal Ur Rehman, Minhong Woo, Hyesoo Choi, Jihwan Kim, Yujin Kim, Sanghee Park, Serim Ahn, Jinsub Lim, Minyoung Kim, Mincheol Chang   +9 more
wiley   +1 more source

Study on the Dynamic Evolution of Overburden Bed Separation Based on a Bed Separation Water Disaster

Applied Sciences
Water inrush from separation layers is a special type of water inrush disaster that occurs during coal mining. It is characterized by the absence of precursors before the inrush, a sudden and massive influx of water, strong destructive power, and ...
Tao Yang, Jiarui Sun, Jie Zhang, Haifei Lin, Ruoyu Bao, Jianjun Wu, Yiming Zhang, Jiayue Deng   +7 more
doaj   +1 more source

Prediction of development height of water-conducting fracture zone based on rotational subsidence

Meikuang Anquan
The development height of water-conducting fracture zone(WCFZ) is an important parameter for water disaster treatment in coal mine roof. In this paper, the failure process of mining overlying rock is analyzed, and the rock instability failure in the fracture zone is divided into three stages: vertical fracture formation, masonry structure formation and
Daolei XIE, Xinghong JIANG, Chenghao HAN, Kai WANG, Huiyong YIN, Jiulei YAN   +5 more
openaire   +1 more source