Results 11 to 20 of about 23,928,830 (244)

A continuous/discontinuous Galerkin formulation for a strain gradient-dependent damage model [PDF]

open access: yes, 2004
The numerical solution of strain gradient-dependent continuum problems has been hindered by continuity demands on the basis functions. The presence of terms in constitutive models that involve gradients of the strain field means that the $C^0$ continuity
G. N. Wells   +2 more
core   +20 more sources

An approach to nonlinear viscoelasticity via metric gradient flows [PDF]

open access: yes, 2013
We formulate quasistatic nonlinear finite-strain viscoelasticity of rate type as a gradient system. Our focus is on nonlinear dissipation functionals and distances that are related to metrics on weak diffeomorphisms and that ensure time-dependent frame ...
Mielke, A.   +4 more
core   +1 more source

Cultivated Land Information Extraction and Gradient Analysis for a North-South Transect in Northeast Asia between 2000 and 2010

open access: yesRemote Sensing, 2014
Cultivated land resources are an important basis of regional sustainability; thus, it is important to determine the distribution of the cultivated land in the Northeast Asia trans-boundary area of China, Russia and Mongolia, which has a continuous ...
Juanle Wang   +4 more
doaj   +1 more source

On the relation between gradient flows and the large-deviation principle, with applications to Markov chains and diffusion [PDF]

open access: yes, 2013
Motivated by the occurrence in rate functions of time-dependent large-deviation principles, we study a class of non-negative functions L that induce a flow, given by L(¿t,¿¿t)=0. We derive necessary and sufficient conditions for the unique existence of a
Mielke, A   +9 more
core   +2 more sources

Seasonal variability of thermal fronts in the Southwestern Arafura Sea in El Niño dan La Niña [PDF]

open access: yesBIO Web of Conferences
Sea surface temperature (SST) thermal fronts in eastern Indonesian waters are strongly modulated by monsoonal winds and regional interactions. Previous studies have mainly focused on the northern Arafura Sea and the Banda Sea, where strong upwelling and ...
Hanifah Nabila N.   +3 more
doaj   +1 more source

Experimental analysis of the log-law at adverse pressure gradient [PDF]

open access: yes, 2021
The experimental data for the mean velocity are analysed in the inner layer for a turbulent boundary layer at significant adverse pressure gradient and Reynolds numbers up to Re-theta=57000.
Novara, Matteo   +6 more
core   +1 more source

Structural boundary and deep contact relationship between the Yangtze and Cathaysia Blocks from crustal thickness gradients

open access: yesFrontiers in Earth Science, 2023
The deep boundary and contact relationship between the Yangtze and Cathaysia Blocks (the major tectonic units of the Southern China Block), as well as the tectonic attributes of the Jiangnan Orogenic Belt, have remained unknown or controversial.
Rubing Han   +7 more
doaj   +1 more source

Nonlinear cross Gramians and gradient systems [PDF]

open access: yes, 2007
We study the notion of cross Gramians for non-linear gradient systems, using the characterization in terms of prolongation and gradient extension associated to the system.
Jacquelien M. A. Scherpen   +5 more
core   +2 more sources

Spatiotemporal Analysis of Urban Growth Using GIS and Remote Sensing: A Case Study of the Colombo Metropolitan Area, Sri Lanka

open access: yesISPRS International Journal of Geo-Information, 2016
Understanding urban growth spatiotemporally is important for landscape and urban development planning. In this study, we examined the spatiotemporal pattern of urban growth of the Colombo Metropolitan Area (CMA)—Sri Lanka’s only metropolitan area—from ...
Shyamantha Subasinghe   +2 more
doaj   +1 more source

Formulation, analysis and solution algorithms for a model of gradient plasticity within a discontinuous Galerkin framework [PDF]

open access: yes, 2008
Includes bibliographical references (p. [221]-239).An investigation of a model of gradient plasticity in which the classical von Mises yield function is augmented by a term involving the Laplacian of the equivalent plastic strain is presented. The theory
McBride, Andrew Trevor
core   +1 more source

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