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Inhomogeneous Anisotropic Cosmology [PDF]
Journal of Cosmology and Astroparticle Physics, 2016 In homogeneous and isotropic Friedmann-Robertson-Walker cosmology, the topology of the universe determines its ultimate fate. If the Weak Energy Condition is satisfied, open and flat universes must expand forever, while closed cosmologies can recollapse ...
Kleban, Matthew, Senatore, Leonardo
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Acoustic streaming and its suppression in inhomogeneous fluids [PDF]
Physical Review Letters, 2017 We present a theoretical and experimental study of boundary-driven acoustic streaming in an inhomogeneous fluid with variations in density and compressibility.
Augustsson, Per +3 more
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The Green-function transform and wave propagation [PDF]
Frontiers in Physics, 2014 Fourier methods well known in signal processing are applied to three-dimensional wave propagation problems. The Fourier transform of the Green function, when written explicitly in terms of a real-valued spatial frequency, consists of homogeneous and ...
Colin eSheppard +2 more
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Estimation of Electromagnetic Properties for 2D Inhomogeneous Media Using Neural Networks [PDF]
Journal of Electromagnetic Engineering and Science, 2022 Electromagnetic measurements are widely used to gain information about an object through interaction of electromagnetic fields with the physical properties of this object.
Mohamed Elkattan, Aladin H. Kamel
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Rediscovering Clinical Utility of QT Dispersion: A Long-Forgotten Parameter [PDF]
Ķazaķstannyṇ Klinikalyķ Medicinasy, 2021 Clinical and experimental electrophysiological studies have shown the importance of inhomogeneous myocardial repolarization in ventricular arrhythmias' genesis.
Denny Suwanto +2 more
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The Freedericksz Transition in a Spatially Varying Magnetic Field
Crystals, 2021 Much is known about the Freedericksz transition induced by uniform electric and magnetic fields in nematic liquid crystals. In this work, we are interested in the effects of a spatially varying field on the transition. Specifically, we study the director
Tianyi Guo +2 more
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Exact and Approximate Solutions for Some Classes of the Inhomogeneous Pantograph Equation
Axioms, 2023 The standard pantograph delay equation (SPDDE) is one of the famous delay models. This standard model is basically homogeneous in nature and it has been extensively studied in the literature. However, the studies on the general inhomogeneous form of such
A. A. Al Qarni
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Geophysical Research Letters, 2023 Ultra‐low frequency (ULF) wave observations across the heliosphere often rely on the sign of correlations between plasma (density/pressure) and magnetic field perturbations to distinguish between fast and slow magnetosonic modes. However, the assumptions
M. O. Archer +4 more
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Applied Sciences, 2022 It is important to detect the defect of products efficiently in modern industrial manufacturing. Image processing is one of common techniques to achieve defect detection successfully. To process images degraded by noise and lower contrast effects in some
Tao Yang, Bingchao Xu, Bin Zhou, Wei Wei
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Full-Coupled Convolutional Transformer for Surface-Based Duct Refractivity Inversion
Remote Sensing, 2022 A surface-based duct (SBD) is an abnormal atmospheric structure with a low probability of occurrence buta strong ability to trap electromagnetic waves. However, the existing research is based on the assumption that the range direction of the surface duct
Jiajing Wu +6 more
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