Results 131 to 140 of about 141,433 (299)

Breaking the Durability–Power Trade‐Off: Boron‐Directed Faceted O3 Cathodes for High‐Rate Sodium‐Ion Batteries

Advanced Energy Materials, EarlyView.
Boron‐oxide‐assisted particle engineering stabilizes O3‐type layered cathodes for sodium‐ion batteries by mitigating phase transitions and lattice strain. Acting as flux and structural modifier, boron forms submicron hexagonal platelets with (003) facets and expanded Na‐layer spacing, enabling rapid Na⁺ diffusion and mechanical resilience.
Tengfei Song, Alexis Manche, Dongrui Xie, Bowen Liu, Chenglong Wu, Bo Dong, Reda Malakauskaite, Manoj Ovhal, David O. Scanlon, Emma Kendrick   +9 more
wiley   +1 more source

Controlling Exsolution Dynamics in High‐Entropy Oxides for Highly Active and Selective Acetylene Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Li+‐induced lattice distortion, valence variation, and local charge redistribution in a rock salt‐structured high‐entropy oxide enable controlled metal exsolution, altering the Cu–Ni–Co exsolution sequence and delivering a surface Cu0‐enriched catalyst with exceptional activity and ethylene selectivity for acetylene semi‐hydrogenation.
Hailing Yu, Caiqi Wang, Kevin M. Siniard, Qingju Wang, Yuanpeng Zhang, J. Anibal Boscoboinik, Xiao Tong, Eliseo Perez Gomez, Shuai Yuan, Arun S. Asundi, Oliver Mueller, Murillo Longo Martins, Yongqiang Cheng, Michael Richard Koehler, De‐en Jiang, Zili Wu, Zhenzhen Yang, Sheng Dai   +17 more
wiley   +2 more sources

New Tehniques of Pressure Relief and Permeability Enhancement by Abrasive Jet in Coal Mine Roadways

Shiyou jixie, 2023
Pure water jet penetration in hard coal seams is deficient for low rock-breaking efficiency and complex operation.This paper presents two new techniques of pressure relief and permeability enhancement by deep penetration with abrasive jet and by radial ...
Wang Bin, Huang Zhongwei, Yang Ruiyue, Li Xuechen, Li Jingbin, Chen Jianxiang, Qin Xiaozhou   +6 more
doaj  

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

Advanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu, Yufei Zhang, Han Zhao, Pooi See Lee, Daniel H.C. Chua   +4 more
wiley   +1 more source

Numerical simulation of optimal jet angle of water jet assisted disc cutter rock breaking

Meitan kexue jishu
In 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, Yiqiang LU, Sheng ZHANG, Jianhong MA, Zhanbiao YANG, Hongyun FAN   +5 more
doaj   +1 more source

Rock Breaking Mechanisms and Heat Generation Analysis on High Temperature Rocks in Deep Wells

Shiyou jixie, 2021
In order to improve the rock breaking efficiency of PDC cutter in high temperature formations in deep wells, granite and sandstone are heated respectively to different temperatures to simulate the high temperature rocks at the deep bottom hole.
Chen Hao, Li Bangrun, Cai Can, Xie Song, Cao Yulei, Yang Yingxin   +5 more
doaj  

Evaluation and optimization of drilling efficiency while drilling based on improved rock-breaking specific energy model of bit [PDF]

, 2023
Weiqiang Song, Huidong Mu, Zhiqiang Zhao, Xu Han, Haiyang Yu, Lulin Kong, Wenhui Hou   +6 more
openalex   +1 more source

Spartan Daily, November 30, 2016 [PDF]

, 2016
Volume 147, Issue 37https://scholarworks.sjsu.edu/spartan_daily_2016/1077/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
core   +2 more sources

Smart Exploration of Perovskite Photovoltaics: From AI Driven Discovery to Autonomous Laboratories

Advanced Energy Materials, EarlyView.
In this review, we summarize the fundamentals of AI in automated materials science, and review AI applications in perovskite solar cells. Then, we sum up recent progress in AI‐guided manufacturing optimization, and highlight AI‐driven high‐throughput and autonomous laboratories.
Wenning Chen, Zheyu Zhang, Kelvian T. Mularso, Bonghyun Jo, Hyun Suk Jung   +4 more
wiley   +1 more source

A Study on the Effects of Hob Temperature on the Rock-Breaking Characteristics of Sandstone Strata

Applied Sciences
To explore the effect of hob temperature on the rock-breaking characteristics of full-section tunnel boring machines (TBMs) in sandstone strata, high-temperature furnace heating experiments of sandstone and physical and mechanical experiments at room ...
Yun-Gui Pan, You-Liang Chen, Xi Du, Hui-Dong Tong, Fei-Yu Tang, Xiao-Jian Wu, Su-Ran Wang, Shao-Ming Liao, Bin Peng   +8 more
doaj   +1 more source