Results 11 to 20 of about 5,552,824 (295)
A Robust InSAR Phase Unwrapping Method via Phase Gradient Estimation Network
Remote Sensing, 2021 Phase unwrapping is a critical step in synthetic aperture radar interferometry (InSAR) data processing chains. In almost all phase unwrapping methods, estimating the phase gradient according to the phase continuity assumption (PGE-PCA) is an essential ...
Liming Pu +6 more
doaj +2 more sources
Phase and amplitude gradient waveguide coupled metasurfaces
Scientific ReportsThis paper presents a novel silicon-based metasurface-coated one-dimensional (1D) slab waveguide. The proposed idea can easily engineer and mold guided waves into any desired free-space mode and provide the wavefront control of optical metasurfaces, such
Yasaman Tanhayivash +2 more
doaj +3 more sources
Global convergence of gradient descent for phase retrieval
CoRRWe propose a tensor-based criterion for benign landscape in phase retrieval and establish boundedness of gradient trajectories. This implies that gradient descent will converge to a global minimum for almost every initial point.
Théodore Fougereux +2 more
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Convolutional Phase Retrieval via Gradient Descent [PDF]
IEEE Transactions on Information Theory, 2020 64 pages , 9 figures, appeared in NeurIPS 2017. Accepted at IEEE Transactions on Information Theory.
Qing Qu 0001 +3 more
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Phase-field gradient theory [PDF]
Zeitschrift für angewandte Mathematik und Physik, 2021 AbstractWe propose a phase-field theory for enriched continua. To generalize classical phase-field models, we derive the phase-field gradient theory based on balances of microforces, microtorques, and mass. We focus on materials where second gradients of the phase field describe long-range interactions.
Luis Espath, Victor Calo
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Liquid phase gradient elution procedure.
, 2022 Liquid phase gradient elution procedure.
Le Yang (345935) +4 more
core +1 more source
Phase Separation Dynamics in a Concentration Gradient [PDF]
Europhysics Letters (EPL), 1994 11 pages, REVTEX.3.0 ...
Lacasta Palacio, Ana María +2 more
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Boundary Effects in the Gradient Theory of Phase Transitions [PDF]
SIAM Journal on Mathematical Analysis, 2012 We consider the van der Waals' free energy functional, with a scaling small parameter epsilon, in the plane domain given by the first quadrant, and inhomogeneous Dirichlet boundary conditions. The boundary data are chosen in such a way that the interface between the pure phases tends to be horizontal and is pinned at some point on the y-axis which ...
BERTINI MALGARINI, Lorenzo +2 more
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A continuous/discontinuous Galerkin formulation for a strain gradient-dependent damage model [PDF]
, 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 +8 more sources
A strategy to introduce multi-gradient structures into iron by explosive shock wave processing
Journal of Materials Research and Technology, 2023 A strategy combining shock-induced phase transition, twins, and dislocations to produce a multi-gradient structure in Fe is designed and proposed by the explosive processing method. A specific emulsion explosive is designed to introduce gradient pressure
Jianian Hu +5 more
doaj +1 more source