Results 111 to 120 of about 487,374 (296)

Modeling the initial mechanical response and yielding behavior of gelled crude oil

Open Physics, 2018
The initial mechanical response and yielding behavior of gelled crude oil under constant shear rate conditions were investigated. By putting the Maxwell mechanical analog and a special dashpot in parallel, a quasi-Jeffreys model was obtained. The kinetic
Lei Chen, Gang Liu, Xingguo Lu, Minghai Xu, Yuannan Tang   +4 more
doaj   +1 more source

Simulation of Optical Fiber Amplifier Gain Using Equivalent Short Fibers

, 2019
Electromagnetic wave propagation in optical fiber amplifiers obeys Maxwell equations. Using coupled mode theory, the full Maxwell system within an optical fiber amplifier is reduced to a simpler model.
Drake, Dow, Gopalakrishnan, Jay, Goswami, Tathagata, Grosek, Jacob   +3 more
core   +1 more source

Aging Maxwell Constitutive Model for Concrete

Defence Science Journal, 2008
Fully-hydrated concrete not involved in any reaction has been observed to exhibit aging creep. Both the solidification theory and the dissolution-precipitation theory are incapable of predicting such a behaviour. The microprestress theory proposed for this purpose is based upon an ambiguous physical mechanism.
Milan Suter, Gurmail S. Benipal
openaire   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source

Approximate models for the Maxwell equations

Journal of Computational and Applied Mathematics, 1995
The problem of numerical investigation of low frequency phenomena described by the time-dependent Maxwell equations is considered. Initial and boundary conditions for the various approximate models are derived by using asymptotic analysis. Some application problems are also briefly discussed.
Raviart, Pierre-Arnaud, Sonnendrücker, Eric   +1 more
openaire   +3 more sources

Integration of Low‐Voltage Nanoscale MoS2 Memristors on CMOS Microchips

Advanced Functional Materials, EarlyView.
This article presents the first monolithic integration of nanoscale MoS2‐based memristors into the back‐end‐of‐line of foundry‐fabricated CMOS microchips in a one‐transistor‐one‐resistor (1T1R) architecture. The MoS2‐based 1T1R cells exhibit forming‐free, nonvolatile resistive switching with ultra‐low operating voltages, low cycle‐to‐cycle variability ...
Jimin Lee, Sofía Cruces, Xiaohua Liu, Yang Chen, Vasilis A. Maroufidis, Janghyun Jo, Lukas Völkel, Dennis Braun, Michael Möller, Leon Brackmann, Holger Kalisch, Michael Heuken, Andrei Vescan, Rafal E. Dunin‐Borkowski, Joachim Mayer, Stefan Wiefels, Max C. Lemme   +16 more
wiley   +1 more source

NUMERICAL SIMULATION OF VISCOELASTIC MATERIALS

Nauka ta progres transportu, 2014
Purpose. The main goal of this paper is to develop the numerical model of viscoelastic material using finite element method (FEM). The model was applied to asphalt-aggregate mixtures.
S. P. Panchenko
doaj   +1 more source

A class of linear viscoelastic models based on Bessel functions

, 2016
In this paper we investigate a general class of linear viscoelastic models whose creep and relaxation memory functions are expressed in Laplace domain by suitable ratios of modified Bessel functions of contiguous order. In time domain these functions are
Colombaro, Ivano, Giusti, Andrea, Mainardi, Francesco   +2 more
core   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

Advanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit, Yifei Yang, Shawn Li, Yu‐Chia Chen, Qi Jia, Jian‐Ping Wang   +5 more
wiley   +1 more source

A Numerical Technique for Solving the Maxwell Model for Free Surface Flows

Trends in Computational and Applied Mathematics, 2004
This work is concerned with the development of a numerical technique for solving free surface flows of a Maxwell fluid. The governing equations for the flow of a Maxwell type fluid together with appropriate boundary conditions are given. The free surface
D.M. Carvalho, M.F. Tomé, J.A. Cuminato, A. Castelo, V.G. Ferreira   +4 more
doaj   +1 more source