Variable anisotropy of small-scale stratospheric irregularities retrieved from stellar scintillation measurements by GOMOS/Envisat [PDF]
Atmospheric Measurement Techniques, 2014 In this paper, we consider possibilities for studying the anisotropy of small-scale air density irregularities using satellite observations of bi-chromatic stellar scintillations during tangential occultations.
V. Kan, V. F. Sofieva, F. Dalaudier
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Spatial and spectral anisotropy in HARP images: An automated approach [PDF]
2016 IEEE 13th International Symposium on Biomedical Imaging (ISBI), 2016 Strain and related tensors play a major role in cardiac function characterization, so correct estimation of the local phase in tagged images is crucial for quantitative myocardial motion studies. We propose an Harmonic Phase related procedure that is adaptive in the spatial and the spectral domains: as for the former, we use an angled-steered analysis ...
Sanz-Estébanez, Santiago +4 more
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Expanding the PIV Spectral Range and the Turbulence Generated by Grid of Prismatic Circular Cylinders [PDF]
MATEC Web of Conferences, 2022 The grid turbulence past a grid made of row of prismatic circular rods (rod diameter = 10 mm, rod spacing = 20 mm) perpendicular to the flow is observed by using a pair of PIV cameras.
Duda Daniel +2 more
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Scaling of spectral anisotropy with magnetic field strength in decaying magnetohydrodynamic turbulence [PDF]
, 1998 Space plasmameasurements,laboratory experiments, and simulations have shown that magnetohydrodynamic(MHD)turbulence exhibits a dynamical tendency towards spectral anisotropy given a sufficiently strong background magnetic field.
Ghosh, Sanjoy +2 more
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Multi-spacecraft measurement of anisotropic power levels and scaling in solar wind turbulence [PDF]
Annales Geophysicae, 2009 Measurements by the four Cluster spacecraft in the solar wind are used to determine quantitatively the field-aligned anisotropy of magnetohydrodynamic inertial range turbulence power levels and spectral indexes. We find, using time-lagged second order
K. T. Osman, T. S. Horbury
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Anisotropic three-dimensional MHD turbulence [PDF]
, 1996 Direct spectral method simulation of the three-dimensional magnetohydrodynamics (MHD) equations is used to explore anisotropy that develops from initially isotropic fluctuations as a consequence of a uniform applied magnetic field.
Ghosh, Sanjoy +3 more
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A scalar three‐dimensional spectral model with variable anisotropy [PDF]
Journal of Geophysical Research: Atmospheres, 1997 This paper introduces a simple three‐dimensional (3‐D) spectral model for scalar fluctuations with variable anisotropy. This heuristic model is useful in the study of statistical properties of stably stratified flows. It goes a step further than existing analogues by explicitly taking into account variation of anisotropy with the size of the ...
Francis Dalaudier, Alexandre S. Gurvich
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Giant optical anisotropy in transition metal dichalcogenides for next-generation photonics
Nature Communications, 2021 Optical anisotropy in a broad spectral range is pivotal to efficient light manipulation. Here, the authors measure a birefringence of 1.5 in the infrared range and 3 in the visible light for MoS2.
G. A. Ermolaev +19 more
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Electromagnetic Origin of the CMB Anisotropy in String Cosmology [PDF]
, 1995 In the inflationary scenarios suggested by string theory, the vacuum fluctuations of the electromagnetic field can be amplified by the time-evolution of the dilaton background, and can grow large enough to explain both the origin of the cosmic magnetic ...
A. A. Starobinski +19 more
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Pitch-angle Anisotropy Imprinted by Relativistic Magnetic Reconnection
The Astrophysical Journal, 2023 Radiation emitted by nonthermal particles accelerated during relativistic magnetic reconnection is critical for understanding the nonthermal emission in a variety of astrophysical systems, including blazar jets, black hole coronae, pulsars, and magnetars.
Luca Comisso, Brian Jiang
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