Results 141 to 150 of about 263,496 (313)
Decay of Fourier Transforms and Generalized Besov Spaces
Constructive Mathematical Analysis, 2020 A characterization of the generalized Lipschitz and Besov spaces in terms of decay of Fourier transforms is given.\ In particular, necessary and sufficient conditions of Titchmarsh type are obtained.\ The method is based on two-sided estimate for the rate of approximation of a $\beta$-admissible family of multipliers operators in terms of decay ...
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Multimodal Data‐Driven Microstructure Characterization
Advanced Engineering Materials, EarlyView.A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang +4 more
wiley +1 more source
Results in Applied MathematicsThis work deal with global existence and general decay of solutions of a wave equation with acoustic and fractional boundary conditions coupling by source and delay terms.
Abdelbaki Choucha +4 more
doaj +1 more source
Neutrino mixing and general covariance in the inverse $β$ decay
, 2018 We review recent developments on the role of neutrino mixing in the inverse β decay of accelerated protons. We show that calculations in the inertial and comoving frames agree -- thus preserving general covariance -- only when taking neutrino asymptotic ...
Luciano Petruzziello +8 more
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Advanced Engineering Materials, EarlyView.A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du +4 more
wiley +1 more source
Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy
Advanced Engineering Materials, EarlyView.A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang +10 more
wiley +1 more source
Extended Decay Properties for Generalized BBM Equation
, 2019 In this note we show that all small solutions of the BBM equation must decay to zero as $t\to +\infty$ in large portions of the physical space, extending previous known results, and only assuming data in the energy space. Our results also include decay on the left portion of the physical line, unlike the standard KdV dynamics.
Kwak, Chulkwang, Muñoz, Claudio
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Advanced Engineering Materials, EarlyView.The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source
General decay of solutions of a viscoelastic equation
, 2007 In this paper we consider the following viscoelastic equation:utt−Δu+∫0tg(t−τ)Δu(τ)dτ=0, in a bounded domain, and establish a general decay result which is not necessarily of exponential or polynomial type.
Messaoudi, Salim A., Salim A. Messaoudi
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