Results 41 to 50 of about 172,487 (303)

An isogeometric analysis approach to gradient‐dependent plasticity [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 2017
SummaryGradient‐dependent plasticity can be used to achieve mesh‐objective results upon loss of well‐posedness of the initial/boundary value problem because of the introduction of strain softening, non‐associated flow, and geometric nonlinearity.
Kolo, I., de Borst, R.
openaire   +2 more sources

Dynamical Systems Approach of Internal Length in Fractional Calculus

open access: yesEngineering Transactions, 2017
Conventionally, non-local properties are included in the constitutive equations in the form of strain gradient-dependent terms. In case of the second gradient dependence an internal material length can be obtained from the critical eigenmodes in ...
Peter Balazs BEDA
doaj   +1 more source

VELOCITY GRADIENT OF THE FLOOR EXERCISE [PDF]

open access: yesJournal of Applied Sports Sciences, 2019
The methodological classification of the volume of the exercises is in the basis of the multiannual preparation in gymnastics. A number of authors (Dimitrova, 2015; Borisenko, 2000; Fisenko, 2005; Gaverdovskiy, Smolevskiy, 2014) note that for the ...
Marina Petrova, Bonka Dimitrova
doaj   +3 more sources

Boundedness, existence and uniqueness results for coupled gradient dependent elliptic systems with nonlinear boundary condition

open access: yesAdvances in Nonlinear Analysis
In this paper, we study coupled elliptic systems with gradient dependent right-hand sides and nonlinear boundary conditions, where the left-hand sides are driven by so-called double phase operators.
Frisch Michal Maria, Winkert Patrick
doaj   +1 more source

A priori estimate for a quasilinear problem depending on the gradient

open access: yesJournal of Mathematical Analysis and Applications, 2010
AbstractThe main purpose of this paper is to establish a priori estimate for positive solutions of some superlinear, quasilinear elliptic equations where the nonlinearity depends on x, u, and ∇u. Our argument does not need a non-existence result for the limit problem obtained by the usual blow-up procedure.
Lorca, Sebastian, Ubilla, Pedro
openaire   +6 more sources

Infection Models for Pine Wilt Disease on the Basis of Vector Behaviors

open access: yesPopulation Ecology, EarlyView.
Infection models for pine wilt disease without vector density were built to estimate the transmission coefficient of the pathogenic nematode. The models successfully simulated the annual change in the density of infected trees for four pine stands. ABSTRACT Pine wilt disease is caused by the pinewood nematode (Bursaphelenchus xylophilus Steiner et ...
Katsumi Togashi
wiley   +1 more source

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

open access: yesPopulation Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi   +3 more
wiley   +1 more source

Grain size and compositional gradient dependence of thermoelectric performance for Cu3−xNixSbSe4 materials

open access: yesResults in Physics, 2021
The ternary Cu3SbSe4 thermoelectric material with diamond-like structure exhibit good thermoelectric performance in the middle temperature region.
Lin Bo   +7 more
doaj   +1 more source

From omics to AI—mapping the pathogenic pathways in type 2 diabetes

open access: yesFEBS Letters, EarlyView.
Integrating multi‐omics data with AI‐based modelling (unsupervised and supervised machine learning) identify optimal patient clusters, informing AI‐driven accurate risk stratification. Digital twins simulate individual trajectories in real time, guiding precision medicine by matching patients to targeted therapies.
Siobhán O'Sullivan   +2 more
wiley   +1 more source

On a Neumann Problem with an Intrinsic Operator

open access: yesAxioms
This paper investigates the existence and location of solutions for a Neumann problem driven by a (p,q) Laplacian operator and with a reaction term that depends not only on the solution and its gradient but also incorporates an intrinsic operator, which ...
Dumitru Motreanu, Angela Sciammetta
doaj   +1 more source

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