Results 261 to 270 of about 166,893 (293)

Nonlinear terahertz conductivity in graphene

2013 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013
Graphene is a unique conductor, where charge is transported by massless carriers. Remarkably, the THz response of carriers strongly depends on the driving field.
Zoltán Mics, Mischa Bonn, Klaas-Jan Tielrooij, Dmitry Turchinovich   +3 more
openaire   +1 more source

Nonlinear observers for conductivity tracking

IFAC Proceedings Volumes, 2010
Abstract Conductivity based sensors can be applied to monitor a wide range of processes in the mineral processing industry. This work compares the use of an Extended Kalman Filter and a Nonlinear Observer for tracking conductivity variations under dynamical conditions.
Daniel Sbarbaro, Ruben Peña
openaire   +1 more source

Nonlinear Optimal Control Problems in Heat Conduction

SIAM Journal on Control and Optimization, 1983
The authors solve two nonlinear problems of optimal control. The first concerns the Stefan problem for temperature u(x,t) and moving boundary \(h(t)>0:\) Let \(T>0\) fixed, maximize h(T) subject to \(u_ t-u_{xx}=0\), \(u(x,0)=\phi(x)\), \(-u_ x(0,t)=g(t)\), \(u(h(t),t)\), \(h(0)=b>0\), where b, \(\phi\) are given and the control g is a nonnegative ...
Friedman, Avner, Jiang, Lishang
openaire   +2 more sources

Nonlinear Conductivity Fluctuations in Fe-Chalcogenide Superconductors

IEEE Transactions on Applied Superconductivity, 2013
Electric transport and voltage-noise measurements on FeTe0.5Se0.5 epitaxial thin films are reported. The films were grown by pulsed laser ablation deposition on lanthanum aluminate single crystal substrates, and subsequently patterned by ion beam etching. Several configurations, with different voltage contacts distances and different strip widths, have
Barone, Ca, Pagano, Sa, Adamo, Mb, Sarnelli, Eb, Bellingeri, Ec, Ferdeghini, Cc   +11 more
openaire   +2 more sources

A Cauchy problem in nonlinear heat conduction

Journal of Physics A: Mathematical and General, 2006
A Cauchy problem on the semiline for a nonlinear diffusion equation is considered, with a boundary condition corresponding to a prescribed thermal conductivity at the origin. The problem is mapped into a moving boundary problem for the linear heat equation with a Robin-type boundary condition.
DE LILLO, Silvana, LUPO, GAIA, SANCHINI, GIAMPAOLO   +2 more
openaire   +2 more sources

Nonstationary nonlinear heat-conduction problems

Journal of Engineering Physics, 1978
An exact analytical solution is constructed for the one-dimensional nonlinear nonstationary problem of heat conductivity with boundary conditions of the third kind.
openaire   +1 more source

One-dimensional nonlinear inverse heat conduction technique

Numerical Heat Transfer, Part B: Fundamentals, 1986
The one-dimensional nonlinear problem of heat conduction is considered. A noniterative space-marching finite-difference algorithm is developed to estimate the surface temperature and heat flux from temperature measurements at subsurface locations. The trade-off between resolution and variance of the estimates of the surface conditions is discussed ...
Hills, R. G., Hensel, E. C. jun.
openaire   +1 more source

Nonlinear Pricing as Exclusionary Conduct [PDF]

, 2012
We study the exclusionary properties of nonlinear pricing by dominant firms in a static environment. Optimal price schedules are nonlinear when the rivals’ sensitivity to competitive pressure varies with the “contestable share” of the market. When buyers can dispose of unconsumed units at no cost, and thus might purchase units they do not need ...
Philippe Choné, Laurent Linnemer
openaire  

Intermediate Asymptotics for Inhomogeneous Nonlinear Heat Conduction

Journal of Mathematical Sciences, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Galaktionov, V. A., Kamin, S., Kersner, R., Vazquez, J. L.   +3 more
openaire   +2 more sources

Nonlinear heat conductivity in plasmas

The Physics of Fluids, 1985
It is shown that the modified moment method applied to the Vlasov–Landau equation is adequate for accounting for the heat flux inhibition in laser-driven plasmas, if the temperature profile is properly taken into account in calculating the heat flux. The temperature profiles are obtained by solving the steady-state mass, momentum, and energy balance ...
openaire   +1 more source