Results 61 to 70 of about 59,538 (290)

Effect of Magnetic Islands on Neoclassical Heat Diffusivity in a Global Tokamak Simulation

Contributions to Plasma Physics, EarlyView.
ABSTRACT Resonant magnetic perturbations (RMPs) alter magnetic field topology via island formation and can modify core transport in toroidal fusion devices. Using the global gyrokinetic particle‐in‐cell code XGC‐S, originally developed for stellarator geometries, we quantify how island topology affects neoclassical heat transport in a circular tokamak ...
Joseph X. Li, Toseo Moritaka, Ryutaro Kanno, Gakushi Kawamura, Robert Hager, C.‐S. Chang   +5 more
wiley   +1 more source

Enhancing hydrogen evolution reaction by harnessing bubble dynamics regulation: Principles, methods, and outlook

Droplet, EarlyView.
Bubble dynamics pose critical bottlenecks to hydrogen evolution reaction efficiency, causing active site isolation, increased ohmic resistance, and concentration overpotential, especially at high current densities. This review comprehensively summarizes passive and active bubble manipulation strategies, elucidates their underlying principles, and ...
Ziwei Guo, Chunhui Zhang, Yunxun Liu, Yi Han, Jinghang Pan, Lingyao Zhang, Chuanqi Nie, Yuejing Zhao, Kesong Liu, Cunming Yu, Lei Jiang   +10 more
wiley   +1 more source

MHD models for multi-spacecraft / ground-based data analysis and conjunction visualizations [PDF]

, 2006
The BATS-R-US MHD code is used to describe the large-scale structure of the magnetosphere whereby the model parameters are constrained by multi spacecraft Cluster data in the post-noon high-latitude magnetopause region.
Wild, J.A., Daum, Patrick
core  

Properties of mass-loading shocks, 2. Magnetohydrodynamics

, 1992
The one-dimensional magnetohydrodynamics of shocked flows subjected to significant mass loading are considered. Recent observations at comets Giacobini-Zinner and Halley suggest that simple nonreacting MHD is an inappropriate description for active ...
Oughton, Sean, Neubauer, F. M., Zank, Gary P., Webb, G. M.   +3 more
core   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

Deep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh, Tonni Agustiono Kurniawan, Christia Meidiana, Abdelkader Anouzla, Faissal Aziz, Imran Ali, Joan Cecilia C. Casila, M. Imran Khan, Dongdong Zhang, Meihui Jiang, Mohd Hafiz Dzarfan Othman, Md Munir Hayet Khan, Kasun Kumara Dissanayake   +12 more
wiley   +1 more source

Dataset of human skin and fingernails images for non-invasive haemoglobin level assessment

Scientific Data
Anaemia, a decrease in total concentration of haemoglobin (Hb) in blood, affects substantial percentage of the population worldwide. Currently, the gold standard for determining the Hb level is the invasive analysis of venous blood.
Boris Yakimov, Kirill Buiankin, Georgy Denisenko, Ilia Bardadin, Oleg Pavlov, Yuliya Shitova, Alexey Yuriev, Lyudmila Pankratieva, Alexander Pukhov, Andrey Shkoda, Evgeny Shirshin   +10 more
doaj   +1 more source

An On-Orbit Dynamic Calibration Method for an MHD Micro-Angular Vibration Sensor Using a Laser Interferometer

Sensors, 2019
The magnetohydrodynamic (MHD) micro-angular vibration sensor is a significant component of the MHD Inertial Reference Unit (MIRU) and measures micro-amplitude and wide frequency angular vibration. The MHD micro-angular vibration sensor must be calibrated
Yingjie Wu, Xingfei Li, Fan Liu, Ganmin Xia   +3 more
doaj   +1 more source

Generalized MHD equations

Journal of Differential Equations, 2003
The paper deals with the \(d\)-dimensional generalized MHD (GMHD) equations \[ \begin{aligned} &\partial_{t}u + u\cdot \nabla u =-\nabla P + b \cdot \nabla b - \nu (-\Delta)^{\alpha} u,\\ &\partial_{t}b + u \cdot \nabla b= b \cdot \nabla u - \eta (-\Delta)^{\beta} b, \end{aligned} \] where the fractional power \((-\Delta)^{\alpha}\) is defined via a ...
openaire   +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

"Una nueva época, un nuevo horizonte"

Materiales para la Historia del Deporte, 2007
Comenzando el nuevo siglo XXI, un grupo de profesionales de la educación física se reunieron con el objeto de indagar y profundizar en las raíces históricas de la actividad fisico-deportiva en Andalucía, coordinados por José Manuel Zapico, "alma mater ...
Juan Carlos Fernández Truan
doaj