Results 171 to 180 of about 9,264 (254)

Failure characteristics and the energy criterion of rock with a through‐going joint under true‐triaxial unloading conditions: Insights from the DEM model

Deep Underground Science and Engineering, EarlyView.
The rock failure mode is significantly influenced by the contributing factors, such as the joint inclination, the initial confining pressure, and the unloading point. We found six typical rock failure modes after a large number of numerical tests. Abstract Excavation unloading damages rock masses, with preferential failure along geological defects in ...
Fei Liu, Changhui Liang, Sijia Liu, Yongjun Zhang, Luo Wang   +4 more
wiley   +1 more source

Low‐Ru‐Content CuCoRu Aerogel for Boosted Electrocatalytic Nitrate Reduction to Ammonia

EcoEnergy, EarlyView.
Low‐Ru‐content Cu5Co5Ru aerogel with enhanced hydrogenation ability and 3D robust aerogel skeletons enables high‐efficiency and long‐term electrocatalytic nitrate reduction to ammonia at low overpotential, achieving an exceptional ammonia yield rate of 2.7 ± 0.1 mmol cm−2 h−1 and a high Faradaic efficiency of ∼97% at −0.1 V versus RHE as well as an ...
Jinjie Tan, Wenjun Ning, Jiashu Chen, Dongyang Lou, Zhehang Jiang, Shurong Li, Rui Zhou, Weichun Chang, Xiu‐Zhi Tang, Libin Zeng, Wei Huang, Jing Yang   +11 more
wiley   +1 more source

Terahertz antiferromagnetic dynamics induced by ultrafast spin currents. [PDF]

Sci Adv
René S, Levchuk A, Abdelsamie A, Li Z, Dufour P, Chaudron A, Godel F, Gemeiner P, Dkhil B, Moussy JB, Bouzehouane K, Fusil S, Garcia V, Viret M, Chauleau JY.   +14 more
europepmc   +1 more source

Design, Preparation, and Structural Control Mechanism of High Performance Water Splitting NiFeCu Catalyst under Magnetic Field

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
By utilizing magnetic field‐assisted electrodeposition to synthesize a Cu‐rich dendritic NiFeCu electrocatalyst, this study significantly improves the efficiency of water splitting. The research not only introduces an innovative strategy for designing highly active bifunctional catalysts but also pioneers a new direction for the application of magnetic
Zhong Wang, Siyuan Zhang, Xuemin Wang, Chuhan Wang, Weibin Chen, Guojian Li, Xiaoming Liu, Qiang Wang, Shuang Yuan   +8 more
wiley   +1 more source

Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α-Quartz. [PDF]

Adv Mater
Kim C, Hwang IK, Moon KW, An K, Lee KJ, Ko JH, Park BG, Choi KY, Hwang C.   +8 more
europepmc   +1 more source

Transverse Square Toroidal Vortices with Giant Ferrotoroidic Coupling in Dy‐Bridged Single‐Molecule Toroics

European Journal of Inorganic Chemistry, EarlyView.
Single‐molecular toroics (SMTs) offer protected magnetic states for next‐generation quantum technologies. Ab initio and model analyses of Cu2Dy7 and Cu4Dy12 reveal unconventional excited states featuring delocalised toroidal moments that couple into strong ferro‐ and antiferrotoroidic configurations, providing unprecedented magnetic coupling within ...
Matteo Licitra, Imon J. Dutta, Kieran Hymas, Stuart R. Batten, Keith S. Murray, Gopalan Rajaraman, Stuart K. Langley, Kuduva R. Vignesh, Alessandro Soncini   +8 more
wiley   +1 more source

Spin polarization driven by molecular vibrations leads to enantioselectivity in chiral molecules. [PDF]

Sci Adv
Miwa S, Yamamoto T, Nagata T, Sakamoto S, Kimura K, Shiga M, Gao W, Yamamoto HM, Inoue K, Takenobu T, Nozaki T, Ohto T.   +11 more
europepmc   +1 more source

Three‐Dimensional Analytical Model of a Free‐Standing Square Rocking Column

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT A three‐dimensional analytical two‐degree‐of‐freedom (2DOF) model is developed to describe the bounded rocking response of free‐standing rigid square columns subjected to bidirectional seismic excitation. The formulation extends Housner's classical planar theory by deriving the full three‐dimensional equations of motion for a column ...
Dimitra Adamopoulou, Michalis F. Vassiliou   +1 more
wiley   +1 more source

Generation of vectorial generalized vortex array with metasurfaces. [PDF]

Light Sci Appl
Yao Q, Li Z, Zheng G.
europepmc   +1 more source

Optimization of Energy Efficiency in Photovoltaic Water Pumping Systems Using Neural Networks

Energy Science &Engineering, EarlyView.
This study investigates an optimal control strategy for a photovoltaic (PV) water pumping system aimed at improving efficiency and autonomy in off‐grid applications. The system uses an induction motor with direct torque control and compares three maximum power point tracking (MPPT) techniques: neural network–based MPPT, Incremental Conductance (IC ...
Sihem Ghoudelbourk, Habib Benbouhenni, Z. M. S. Elbarbary, Mohamed Benidir   +3 more
wiley   +1 more source