Results 11 to 20 of about 18,641,397 (206)

Oscillating steady states [PDF]

open access: yesMagnetic Resonance in Medicine, 2006
AbstractThe signal formation and properties of steady‐state free precession (SSFP) in combination with alternating RF pulse phases or alternating spin precession is analyzed. Simulations and experiments demonstrate that the amplitudes of SSFP echo paths are significantly influenced by application of alternating phases either via the exciting RF pulse ...
Scheffler, K.   +3 more
openaire   +4 more sources

РОЗРАХУНОК ЕЛЕКТРОТЕПЛОВИХ ПРОЦЕСІВ В ІНДУКЦІЙНІЙ КАНАЛЬНІЙ ПЕЧІ В УСТАЛЕНОМУ РЕЖИМІ НА ОСНОВІ ТЕОРІЇ ТЕПЛОВИХ КІЛ

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2021
Based on the theory of thermal circuits, a computer model of an induction channel furnace has been developed, which is used to obtain industrial copper wire rods in the mode of continuous casting.
А.А. Щерба   +4 more
doaj   +1 more source

An investigation into the bilateral functional differences of the lower limb muscles in standing and walking [PDF]

open access: yesPeerJ, 2016
To date, most studies use surface electromyographic (sEMG) signals as the control source on active rehabilitation robots, and unilateral data are collected based on the gait symmetry hypothesis, which has caused much controversy.
Shengyun Liang   +3 more
doaj   +2 more sources

Inverting a Steady-State [PDF]

open access: yesProceedings of the Eighth ACM International Conference on Web Search and Data Mining, 2015
We consider the problem of inferring choices made by users based only on aggregate data containing the relative popularity of each item. We propose a framework that models the problem as that of inferring a Markov chain given a stationary distribution. Formally, we are given a graph and a target steady-state distribution on its nodes.
Ravi Kumar 0001   +3 more
openaire   +2 more sources

Existence and stabilizability of steady-state for semilinear pulse-width sampler controlled system [PDF]

open access: yesOpuscula Mathematica, 2011
In this paper, we study the steady-state of a semilinear pulse-width sampler controlled system on infinite dimensional spaces. Firstly, by virtue of Schauder's fixed point theorem, the existence of periodic solutions is given.
JinRong Wang
doaj   +1 more source

Heat transfer and fluid flow analysis using nanofluids in diamond-shaped cavities with novel obstacles

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
This work computationally explores the two-phase flow of nanofluids and their thermal energy transport coefficients in 3D diamond-shaped cavities with square-shaped barriers having reducing dimensions.
Alireza Aghaei   +5 more
doaj   +1 more source

Variable selection for decentralized control [PDF]

open access: yesModeling, Identification and Control, 1992
Decentralized controllers (single-loop controllers applied to multivariable plants) are often preferred in practice because they are robust and relatively simple to understand and to change. The design of such a control system starts with pairing inputs (
Sigurd Skogestad, Manfred Morari
doaj   +1 more source

The steady state fluctuation relation for the dissipation function [PDF]

open access: yes, 2007
We give a proof of transient fluctuation relations for the entropy production (dissipation function) in nonequilibrium systems, which is valid for most time reversible dynamics. We then consider the conditions under which a transient fluctuation relation
Bernhardt, Debra   +13 more
core   +1 more source

Inconsistencies in steady-state thermodynamics [PDF]

open access: yesPhysical Review E, 2014
We address the issue of extending thermodynamics to nonequilibrium steady states. Using driven stochastic lattice gases, we ask whether consistent definitions of an effective chemical potential mu, and an effective temperature T_e, are possible. mu and T_e are determined via coexistence, i.e., zero flux of particles and energy between the driven system
Dickman, Ronald, Motai, Ricardo
openaire   +3 more sources

Time evolution approach to steady state

open access: yesResults in Physics, 2016
We apply a time evolution approach to the statistical mechanics of one and two dimensional systems to study the evolution toward steady state. We have used the Feynman definition of an inverse operator to show that in one and two dimensions, there is an ...
A. Muriel
doaj   +1 more source

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