Experimental Study of Mechanical Characteristics of Tunnel Support System in Hard Cataclastic Rock with High Geostress [PDF]
, 2020 In hard cataclastic surrounding rock with high geostress, the rock monomer strength is high and the rock is broken, and tunnel excavation in it is apt to cause large deformation, collapsing, and breaking, causing initial support crack and even intruding ...
Yongquan Zhu +4 more
core +1 more source
Relaxor Ferroelectricity Enables Enhanced Thermoelectric Performance in In2Se3‐Alloyed GeTe
Advanced Science, EarlyView.A non‐equimolar In3+/Se2− alloying strategy creates Ge vacancies in GeTe, inducing relaxor ferroelectricity that broadens the low thermal conductivity window. Simultaneously, cubic phase stabilization broadens optimal electrical transport, achieving an average zT > 1.0 over 330–625 K.
Yuting Zhang +5 more
wiley +1 more source
A STUDY ON THE LAW OF OVERLYING STRATA MIGRATION AND SEPARATION SPACE EVOLUTION UNDER HARD AND THICK STRATA IN UNDERGROUND COAL MINING BY SIMILAR SIMULATION [PDF]
, 2018 The breaking of hard and thick key layers can easily cause dynamic disasters, such as rock burst and mine seismicity, and seriously threaten safe mining.
YANCHAO XUE +4 more
core +1 more source
Experimental Study on Granite Broken by PDC Bit under High Temperature and High Pressure
Shiyou jixie, 2021 As the exploration and development of oil and gas gradually advance to the deep layer, the formation temperature and pressure keep increasing. The efficiency of PDC bit breaking deep hard rock under high temperature and high pressure is reduced, and the ...
Shi Huaizhong +5 more
doaj
Advanced Science, EarlyView.A flexible PDMS‐LATP polymer‐ceramic membrane creates lithium‐ion “superhighways” for rapid and selective extraction from complex brines. The amorphous PDMS matrix suppresses nonselective leakage and stabilizes the ceramic network, while LATP provides preferential Li+ conduction.
Xinxin Wei +12 more
wiley +1 more source
The Breaking Span of Thick and Hard Roof Based on the Thick Plate Theory and Strain Energy Distribution Characteristics of Coal Seam and Its Application [PDF]
, 2017 In mining engineering, the thick and hard roof threatens the safe production. Based on Reissner plate theory and combined with weighted residual method, with four edges clamped as the boundary conditions, this paper deduces the theoretical formula of the
Xiaolong Li +3 more
core +1 more source
Numerical simulation of optimal jet angle of water jet assisted disc cutter rock breaking
Meitan kexue jishuIn order to solve the problems of difficulty in tunneling, serious tool loss and low efficiency of breaking ultra-high strength rock encountered in the construction process of traditional hob, high-pressure water jet has become a new method to improve ...
Anxin WANG +5 more
doaj +1 more source
Flexomagnetic Effect in Wrinkled SrRuO3 Thin Films
Advanced Electronic Materials, EarlyView.The strain‐gradient‐driven flexoelectric polarization can modify the magnetic moment of a magnetic film. In this work, SrRuO3 is grown epitaxially on a water‐soluble sacrificial layer Sr3Al2O6, thereby enabling the formation of wrinkled structures. The so‐called flexomagnetic effect is then observed in a wrinkled SrRuO3 film.
Liwen Zhu +6 more
wiley +1 more source
Influence of Cutter Ring Structure on Rock-Breaking Force and Efficiency of TBM Disc Cutter Based on Discrete Element Method [PDF]
Understanding the combined effects of edge width and cutter ring shape on the rock-breaking performance is critical for optimising disc cutter design.
Long-Chuan Deng +5 more
core +1 more source
Highly Stabilized Ni‐Rich Cathodes Enabled by Artificially Reversing Naturally‐Formed Interface
Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.The application of Ni‐rich cathode materials is obstructed by interfacial and structural instability. This work proposes a facile and cost‐effective Al‐based vapor‐phase surface reaction strategy on Ni‐rich cathode to maintain its structural integrity from near‐surface to bulk.
Jinjin Ma +11 more
wiley +1 more source