Results 71 to 80 of about 13,662 (262)

Assessment of Dyke-Induced Strength Variations in Coal and Its Surroundings Using a Non-Destructive In Situ Testing Approach

Mining
In situ uniaxial compressive strength mapping across dykes of different thicknesses within a coal mass and its influence zones at two mines in the Jharia coalfield has been carried out in this study.
Sahendra Ram, Ashok Kumar, Krzysztof Skrzypkowski, Jerzy Stasica, Zbigniew Rak, Maciej Madziarz   +5 more
doaj   +1 more source

INFLUENCE OF VOLUME WEIGHT ON GABBRO UNIAXIAL COMPRESSION STRENGTH

Archives for Technical Sciences, 2015
<p>Jablanica gabbro represents the highest quality architectural building stone in Bosnia and Herzegovina. Knowledge of the physical and mechanical characteristics of gabbro is an important prerequisite for the proper usage of this rock material.
Kenan Mandžić, Adnan Ibrahimović
openaire   +2 more sources

Room‐Temperature Skyrmionic Synapse in 2D Ferromagnet Fe3GaTe2 Operating via Collective Spin Texture Transformation

Advanced Materials, EarlyView.
We demonstrate a neuromorphic synapse in 2D Fe3GaTe2 flakes. The device operates via a current‐driven transformation from a skyrmion‐lattice to a stripe‐domain state, yielding a linear anomalous Hall resistance response with a tunable slope to enable multiply‐accumulate operations. Simulations confirm its viability in artificial neural networks.
Jixiang Huang, Tongji Zhu, PeiYu Cai, Xiaoming Ma, Zhen Wang, Ruifu Zhang, Yi Hao, Jingdi Lu, Liubing He, Jun Xu, Yuejie Zhang, Wanjun Jiang, Jing Tao, Shiming Lei, Pavel Parchinskiy, Jing Teng, Lingfei Wang, Wei Niu, Elton J.G. Santos, Xiaoqian Zhang, Peng Li   +20 more
wiley   +1 more source

Study on the size effect of rock burst tendency of red sandstone under uniaxial compression

Scientific Reports
The study of rock burst tendency of rock masses with different sizes plays a key role in the prevention of rock burst. Through theoretical analysis, it is proposed that uniaxial compressive strength and deformation modulus ratio are the key mechanical ...
Feng Chen, Jinyang Du, Jinguo Lv, Chun’an Tang, Yishan Pan   +4 more
doaj   +1 more source

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

Advanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son, Soyul Kwak, Heerin Noh, Minsang Kim, Doyeon Noh, Subhayan Chakraborty, Jaewon Lee, YongDeok Cho, Kyeongsoo Kim, Taewoong Eom, Moonyoung Kim, Jangwon Kim, Hoyoung Lee, Soyoung Lee, Jaehun Kim, Grace G. D. Han, Shin‐Tson Wu, Stefano Oscurato, Arri Priimagi, Marina Saphiannikova, Seungwoo Lee   +20 more
wiley   +1 more source

Mechanical improvement of modified coal-based solid waste composite material after exposure to elevated temperatures to control overburden failure

Results in Engineering
A systematic investigation was conducted on the effects of diatomite substitution rate and elevated temperature on key compressive performance indicators, including compressive strength, elastic modulus, peak strain and failure mode.
Yunjiang Sun, Xiaolong Shen, Jianping Zuo, Jiashun Liu, Daohan Li, Hongfan Xu, Rui Pan, Jiaxuan Xiao, Shuai Guo, Yuhao Feng, Jianan Wang, Zhixuan Pang, Yiru Feng   +12 more
doaj   +1 more source

Highly Entangled Bottlebrush Polymer Networks

Advanced Materials, EarlyView.
Bottlebrush polymers are difficult to entangle, enabling ultrasoft yet brittle networks. We report highly entangled bottlebrush elastomers that remain ultrasoft (∼1 kPa) yet stretch to ∼1800% and exhibit exceptional fatigue resistance. Their intrinsic fatigue strength—fatigue threshold normalized by modulus—surpasses that of highly entangled linear ...
Myoeum Kim, Baiqiang Huang, Shiwang Cheng, Li‐Heng Cai   +3 more
wiley   +1 more source

The influence of dry-wet cycle on the compressive strength of tuff

Discover Applied Sciences
Rainfall increases the moisture content of rocks, alters their internal structure, and weakens their mechanical strength, thereby compromising slope stability. Therefore, exploring the potential impact of rainfall on rock slopes is crucial. In the paper,
Gaojian Hu, Yuan Xing, Yangyong Gu, Jingping Xiao, Wenbing Guo   +4 more
doaj   +1 more source

Compressive strength characteristics of polyurethane cemented sea sand

Case Studies in Construction Materials
Sea sand exhibits typical features of loose structure, large compressibility and poor consolidation, causing severe challenges for the construction and emergency repair of coastal engineering. A new Hybrid Non-Isocyanate Polyurethane (HNIPU) was utilized
Peifeng Ma, Linjian Ma, Mingyang Wang, Liqun Duan, Yizhong Tan, Weihao Zhu   +5 more
doaj   +1 more source

Evolution‐Driven Bio‐Composite Aerogels for Self‐Adaptive Thermal Regulation and Energy Storage

Advanced Materials, EarlyView.
Inspired by nature's multiphase integration, a single chitosan (CTS)–metal chloride (MCl3) coordination precursor is engineered to enable sequential material and functional evolution. The resulting metal ion‐coordinated chitosan (CTS–M) aerogels exhibit humidity‐adaptive thermal insulation for battery safety, while carbonization yields conductive ...
Xiaoxue Zhang, Xiaodong Wang, Jianping Zeng, Zhihua Zhang, Shanyu Zhao, Jun Shen   +5 more
wiley   +1 more source