Results 81 to 90 of about 2,945,859 (241)

On elliptic problems with a nonlinearity depending on the gradient

open access: yesOpuscula Mathematica, 2009
We investigate the solvability of the Neumann problem \((1.1)\) involving the nonlinearity depending on the gradient. We prove the existence of a solution when the right hand side \(f\) of the equation belongs to \(L^m(\Omega )\) with \(1 \leq m \lt 2\).
openaire   +2 more sources

Torsional prestrain gradient and size dependence of initial yield for <100> Cu-Mn single crystals in tension

open access: yesJournal of the Mechanical Behavior of Materials, 2012
The effect of torsional prestrain gradient on the size dependence of initial yielding during subsequent tension of Cu-Mn single crystals is investigated experimentally.
Eleftheriadis Iordanis   +2 more
doaj   +1 more source

Wetting of Flat Gradient Surfaces [PDF]

open access: yesarXiv, 2018
Gradient, chemically modified, flat surfaces enable directed transport of droplets. Calculation of apparent contact angles inherent for gradient surfaces is challenging even for atomically flat ones. Wetting of gradient, flat solid surfaces is treated within the variational approach, under which the contact line is free to move along the substrate ...
arxiv  

Polarization-dependent ponderomotive gradient force in a standing wave [PDF]

open access: yesPhysical Review A, 2011
The ponderomotive force is derived for a relativistic charged particle entering an electromagnetic standing wave with a general three-dimensional field distribution and a nonrelativistic intensity, using a perturbation expansion method. It is shown that the well-known ponderomotive gradient force expression does not hold for this situation.
J. H. M. Kanters   +5 more
openaire   +5 more sources

Probability-Dependent Gradient Decay in Large Margin Softmax [PDF]

open access: yesarXiv, 2022
In the past few years, Softmax has become a common component in neural network frameworks. In this paper, a gradient decay hyperparameter is introduced in Softmax to control the probability-dependent gradient decay rate during training. By following the theoretical analysis and empirical results of a variety of model architectures trained on MNIST ...
arxiv  

Cavity expansion of a gradient-dependent solid cylinder

open access: yesInternational Journal of Solids and Structures, 2007
AbstractThis paper presents an elasto-plastic analysis for cavity expansion in a solid cylinder. The solid is modelled using a strain gradient plasticity model to account for the influence of microstructures on the macroscopic mechanical behaviour.
Zhao, Jidong   +2 more
openaire   +3 more sources

Data-Dependent Stability of Stochastic Gradient Descent

open access: yes, 2017
We establish a data-dependent notion of algorithmic stability for Stochastic Gradient Descent (SGD), and employ it to develop novel generalization bounds. This is in contrast to previous distribution-free algorithmic stability results for SGD which depend on the worst-case constants.
Kuzborskij, Ilja, Lampert, Christoph
openaire   +3 more sources

Semilinear elliptic equations with dependence on the gradient

open access: yesElectronic Journal of Differential Equations, 2012
In this article we consider elliptic equations whose nonlinear term depends on the gradient of the unknown. We assume that the nonlinearity has a asymptotically linear growth at zero and at infinity with respect to the second variable.
Guanggang Liu, Shaoyun Shi, Yucheng Wei
doaj  

FARADAY MAGNETOMETER WITH SHERIC POLE PIECES: IDENTIFICATION ZONE WITH A STABLE FORCE FACTOR

open access: yesРоссийский технологический журнал, 2017
Basic principles and approaches in generation of devices for realization Faraday method are evaluated (for learning magnetic susceptibility of samples). It is noticed that problem exists - it is difficult to identify an operating area to coordinate here ...
A. V. Sandulyak   +4 more
doaj   +1 more source

Frequency-dependent diffusion kurtosis imaging in the human brain using an oscillating gradient spin echo sequence and a high-performance head-only gradient

open access: yesNeuroImage, 2023
Measuring the time/frequency dependence of diffusion MRI is a promising approach to distinguish between the effects of different tissue microenvironments, such as membrane restriction, tissue heterogeneity, and compartmental water exchange. In this study,
Erpeng Dai   +7 more
doaj  

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