Results 131 to 140 of about 263,496 (313)
Electronic Journal of Differential Equations, 2017 In this article we consider a nonlinear viscoelastic Petrovsky equation in a bounded domain with a delay term in the weakly nonlinear internal feedback: $$\eqalign{ &|u_t|^{l}u_{tt} +\Delta^2 u -\Delta u_{tt} -\int_0^t h(t-s)\Delta^2 u(s)\,ds\cr ...
Nadia Mezouar +2 more
doaj
Boundary Stabilization of Memory Type for the Porous-Thermo-Elasticity System
Abstract and Applied Analysis, 2009 We consider the one-dimensional viscoelastic Porous-Thermo-Elastic system. We establish a general decay results. The usual exponential and polynomial decay rates are only special cases.
Abdelaziz Soufyane +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley +1 more source
A general formula for artificial electron decay life-times
, 1970 General formula for artificial electron decay life ...
Stassinopoulos, E. G., Verzariu, P.
core
Predictability of decay events in transitional wall-bounded flows
Extreme events in turbulent flows are in general linked with sudden changes in the dynamics of the system. Despite the increasing interest in modelling these events, their predictability remains largely unexplored.
Vela-Martín, Alberto +2 more
core +1 more source
On the Relative Decay of Unbounded Semigroups on the Domain of the Generator
Zurnal matematiceskoj fiziki, analiza, geometriiSummary: We study the asymptotics of \(C_0\)-semigroups on the domain of the generator. In particular, we analyze the behavior of \(||T(t)(A-\lambda I)^{-1}||\) as time goes to infinity. Our results extend some existing results to the case when the intersection of the spectrum of the generator with the imaginary axis is non-empty.
Sklyar, Grigory M. +2 more
openaire +1 more source
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
, 2019 There is a growing move towards using the quantitative polymerase chain (qPCR)-based sewage-associated marker genes to assess surface water quality.
Beale, David +6 more
core +1 more source
Vacuum Decay in General Relativity
, 2018 We provide a novel, concise and self-contained evaluation of true- and false vacuum decay rates in general relativity. We insist on general covariance and choose observable boundary conditions, which yields the well known false-vacuum decay rate and a new true-vacuum decay rate that differs significantly from prior work.
openaire +2 more sources
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source