Results 81 to 90 of about 10,541 (260)

Cutting attitude inclination angle and rock-breaking mode characteristics of disc cutter

Meitan xuebao
The identification of rock-breaking mode is a key basis to improve cutting ability, and the cutter cutting attitude has a significant influence on rock-breaking mode.
Chunsheng LIU, Shuo CHENG, Yanting LIU, Peng XU, Ruohan LIU, Xin HAO   +5 more
doaj   +1 more source

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

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

Research Progress and Prospect on Laser Drilling Technology

Shiyou jixie, 2016
The conventional rotary drilling usually leads to drilling tool wear, which results in frequent drill bit replacement, causing long drilling period and high cost.The laser drilling technology could greatly improve the drilling speed and shorten the ...
Zhang Shiyi, Han Bin, Li Meiyan, Wang Yong, Sun Jianan   +4 more
doaj  

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

Ultra‐Low‐Strain Calcium and Magnesium Ion Storage Enabled by Tunnel‐Structured MoO3 Positive Electrode

Advanced Energy Materials, EarlyView.
A hexagonal tunnel‐structured MoO3 is nanoparticulated via hydrothermal synthesis followed by ball‐milling. As a positive electrode in Ca and Mg batteries, it delivers superior capacity and structural reversibility, enabling divalent cation intercalation with minimal lattice distortion and no phase transitions.
Reona Iimura, M. D. Hashan C. Peiris, Takashi Yabu, Toshihiko Mandai, Ruijie Zhu, Akira Nasu, Saneyuki Ohno, Masaki Matsui, Itaru Honma, Manuel Smeu, Hiroaki Kobayashi   +10 more
wiley   +1 more source

Study on chaotic fractal characteristics of high-pressure gas rock-breaking vibration signal

矿业科学学报
To investigate the nonlinear chaotic fractal characteristics of high-pressure gas rock-breaking vibration signals, a new rock-breaking gas generator was developed and gas rock breaking experiments were conducted in a stable limestone open-pit mine.
FU Xiaoqiang, YU Jin, DAI Liangyu, PENG Yixin, SHAO Yiqiang   +4 more
doaj   +1 more source

Breaking Rocks, Breaking Laws: India's Battle Against Illegal Stone Mining

GLS Law Journal
Illegal stone mining in India is a pervasive problem with significant environmental, social, and economic consequences. India's diverse geological structure makes it rich in mineral resources, and it is the world's second-largest producer of minerals. However, the extraction of these resources is regulated by laws and regulations, making illegal mining
openaire   +1 more source

How Does Cultural and Colonial Heritage Affect Optimal Branding Strategies? Evidence From the Rice Sector in Senegal

Agribusiness, EarlyView.
ABSTRACT Africa's cultural and colonial heritage has profoundly segmented rice markets. Whereas in ancient centers of rice domestication, consumers maintained preferences for local rice consistent with their cultural heritage, preferences have shifted toward imported Asian rice in coastal areas around seaports, due to prior exposure to colonial import ...
Kofi Britwum, Matty Demont
wiley   +1 more source

Improving breaking efficiency of hard rock: Research on the mechanism of impact-shear rock breaking technology

Energy Exploration & Exploitation
To expedite drilling operations in hard rock of coal mines, a new type of impact-shear drill bit was developed, and its mechanism of speed-up and efficiency increase was studied. The RHT constitutive model was used to describe the structural behavior of rock, and the rock-breaking simulation model of full-size bit was established.
Pei Ju, Dongzhuang Tian
openaire   +2 more sources