Results 61 to 70 of about 306,638 (288)

A hybridizable discontinuous Galerkin method for electromagnetics with a view on subsurface applications

, 2019
Two Hybridizable Discontinuous Galerkin (HDG) schemes for the solution of Maxwell's equations in the time domain are presented. The first method is based on an electromagnetic diffusion equation, while the second is based on Faraday's and Maxwell--Amp ...
Berardocco, Luca, Gravemeier, Volker, Kronbichler, Martin   +2 more
core   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

Design and Analysis of a Moment of Inertia Adjustment Device

Machines
The vibration frequency characteristics of a rotor system are directly related to its moment of inertia. In this paper, a moment of inertia adjustment device is proposed to adjust the frequency characteristics of a rotor system and better reduce ...
Liping Zeng, Zihao Wan, Gang Li
doaj   +1 more source

Simulation and Experimental Study of a Rotating Electromagnetic Field Probe for Nondestructive Testing [PDF]

Journal of Electromagnetic Engineering and Science
Maintaining the integrity of pipelines that are used to transport natural gas and petroleum products is of utmost importance. In this study, a novel probe that uses the rotating electromagnetic field measurement method to detect cracks in the inner walls
Yijing Feng, Haitao Liu, Yibo Wang, Xianjie Qiu   +3 more
doaj   +1 more source

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, EarlyView.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Modeling of axion and electromagnetic fields interaction in particle-in-cell simulations

Matter and Radiation at Extremes
The axion, a theoretically well-motivated particle, has been searched for extensively via its hypothetical interactions with ordinary matter and fields.
Xiangyan An, Min Chen, Jianglai Liu, Zhengming Sheng, Jie Zhang   +4 more
doaj   +1 more source

On the High-Resolution Discretization of the Maxwell Equations in a Composite Tape and the Heating Effects Induced by the Dielectric Losses

Computation, 2022
Electromagnetic field propagation inside composite materials represents a challenge where fiber-scale simulation remains intractable using classical simulation methods.
Chady Ghnatios, Anais Barasinski, Francisco Chinesta   +2 more
doaj   +1 more source

Electric field generation by the electron beam filamentation instability: Filament size effects

, 2009
The filamentation instability (FI) of counter-propagating beams of electrons is modelled with a particle-in-cell simulation in one spatial dimension and with a high statistical plasma representation.
A Bret, Dieckmann M E, Dieckmann M E, M E Dieckmann, Medvedev M V, Medvedev MV, Petri J, Rowlands G, Stockem A   +8 more
core   +1 more source

Circular‐Polarization‐Sensitive Organic Photodetectors with a Chiral Nanopatterned Electrode Inverse‐Designed by Genetic Algorithm

Advanced Functional Materials, EarlyView.
A chiral photodetector capable of selectively distinguishing left‐ and right‐handed circularly polarized light is experimentally demonstrated. The device, which features a nanopatterned electrode inverse‐designed by a genetic algorithm within a metal–dielectric–metal nanocavity that incorporates a vacuum‐deposited small‐molecule multilayer, exhibits ...
Kyung Ryoul Park, Jewoong Lee, In‐Suk Choi, Changsoon Kim   +3 more
wiley   +1 more source

Numerical Simulation of Internal Flow Field, Electromagnetic Field and Temperature Field in Deep-Water Motor

MATEC Web of Conferences, 2018
In this paper, considering the heat exchange between the ends of stator&rotor and lubricating oil, the internal flow field model is established to analyse the flow state. The variation law of the pressure drops in the internal flow field and the friction
Zhang Qi, Li Zengliang, Yu Ran, Sun Zhaocheng, Zhang Le   +4 more
doaj   +1 more source