Results 71 to 80 of about 7,390,319 (342)

The need for accurate measurements of thermal velocity distribution functions in the solar wind

Frontiers in Astronomy and Space Sciences, 2022
The current state of the art thermal particle measurements in the solar wind are insufficient to address many long standing, fundamental physical processes.
Lynn B. Wilson, Katherine A. Goodrich, Drew L. Turner, Ian J. Cohen, Phyllis L. Whittlesey, Steven J. Schwartz   +5 more
doaj   +1 more source

Decreased Serum 5‐HT: Clinical Correlates and Regulatory Role in NMJ of MG

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Although 5‐Hydroxytryptamine (5‐HT) indirectly stimulates muscle contraction and participates in regulating Acetylcholine receptor (AChR) cluster homeostasis in cellular, animal, and clinical studies, evidence regarding its potential to modulate muscle contraction in myasthenia gravis (MG) remains limited.
Xinru Shen, Jing Zhang, Xinyue Zhou, Xiaoxiao Yu, Haodong Shang, Shufan Chen, Lulu Zhen, Jinru Wu, Guanlian Hu, Xiaoyan Zhu, Zhan Sun, Yiren Wang, Jiahui Wang, Jie Lv, Xue Zhao, Yingna Zhang, Wei Guo, Ying Peng, Feng Gao   +18 more
wiley   +1 more source

Fokker–Planck Model-Based Central Moment Lattice Boltzmann Method for Effective Simulations of Thermal Convective Flows

Energies
The Fokker–Planck (FP) equation represents the drift and diffusive processes in kinetic models. It can also be regarded as a model for the collision integral of the Boltzmann-type equation to represent thermo-hydrodynamic processes in fluids. The lattice
William Schupbach, Kannan Premnath
doaj   +1 more source

Two-phase modelling for sediment water mixtures above the limit deposit velocity in horizontal pipelines

Journal of Hydrology and Hydromechanics, 2021
In dredging applications, deep sea mining and land reclamation projects typically large amounts of sediments are transported through pipes in the form of hyper concentrated (40% sediment or more) sediment-water mixtures or slurries.
Schouten Thijs, van Rhee Cees, Keetels Geert   +2 more
doaj   +1 more source

Electromagnetic Response in an Expanding Quark–Gluon Plasma

Particles, 2022
The validity of conventional Ohm’s law is tested in the context of a rapidly evolving quark–gluon plasma produced in heavy-ion collisions. Here, we discuss the electromagnetic response using an analytical solution in kinetic theory.
Igor A. Shovkovy
doaj   +1 more source

Kinetic Theory of Response Functions for the Hard Sphere Granular Fluid [PDF]

, 2007
The response functions for small spatial perturbations of a homogeneous granular fluid have been described recently. In appropriate dimensionless variables, they have the form of stationary state time correlation functions.
Aparna Baskaran, Baskaran A, Bogoliubov N N, Boon J-P, Brey J J, Dorfman J R, Dufty J W, Dufty J W, Forster D, Hansen J-P, J Javier Brey, James W Dufty, Martin P C, McLennan J A, McLennan J A, Résibois P, van Noije T P C   +16 more
core   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

Advanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu, Peipei Chen, Shafia Mukhtar Ibrahim, Mukhtar Lawan Adam, Attia Falak, Mokhotjwa Simon Dhlamini, Hanfu Wang, Lingxiang Jiang, Weiguo Chu   +8 more
wiley   +1 more source

Kinetic Simulations of Compressible Non-Ideal Fluids: From Supercritical Flows to Phase-Change and Exotic Behavior

Computation, 2021
We investigate a kinetic model for compressible non-ideal fluids. The model imposes the local thermodynamic pressure through a rescaling of the particle’s velocities, which accounts for both long- and short-range effects and hence full thermodynamic ...
Ehsan Reyhanian, Benedikt Dorschner, Ilya Karlin   +2 more
doaj   +1 more source

Recent Advancements in Bulk Processing of Rare‐Earth‐Free Hard Magnetic Materials and Related Multiscale Simulations

Advanced Engineering Materials, EarlyView.
This article provides an overview of recent advancements in bulk processing of rare‐earth‐free hard magnetic materials. It also addresses related simulation approaches at different scales. The research on rare‐earth‐free magnetic materials has increased significantly in recent years, driven by supply chain issues, environmental and social concerns, and
Daniel Scheiber, Andrea Bachmaier
wiley   +1 more source

Retarded correlators in kinetic theory: branch cuts, poles and hydrodynamic onset transitions [PDF]

, 2015
In this work the collective modes of an effective kinetic theory description based on the Boltzmann equation in a relaxation-time approximation applicable to gauge theories at weak but finite coupling and low frequencies are studied.
P. Romatschke
semanticscholar   +1 more source