Results 21 to 30 of about 334,564 (72)

Modal Projection for Quasi-Homogeneous Anisotropic Turbulence

open access: yesAtmosphere, 2023
This article, or essay, addresses the anisotropic structure and the dynamics of quasi-homogeneous, incompressible turbulence. Modal projection and expansions in terms of spherical harmonics in three-dimensional Fourier space are in line with a seminal ...
Ying Zhu, Claude Cambon
doaj   +1 more source

On Metric Invariants of Spherical Harmonics

open access: yes, 2021
The algebraic and differential SO3-invariants of spherical harmonics are studied in this work. The fields of rational algebraic and rational differential invariants and their applications for the description of regular SO3-orbits of spherical harmonics ...
Valentin Lychagin
core   +1 more source

3D time series analysis of cell shape using Laplacian approaches [PDF]

open access: yes, 2013
Background: Fundamental cellular processes such as cell movement, division or food uptake critically depend on cells being able to change shape. Fast acquisition of three-dimensional image time series has now become possible, but we lack efficient tools
Stephens, Len R.   +7 more
core   +1 more source

A unified treatment of Wigner D functions, spin‐weighted spherical harmonics, and monopole harmonics [PDF]

open access: yes
A unified, self‐contained treatment of Wigner D functions, spin‐weighted spherical harmonics, and monopole harmonics is given, both in coordinate‐free language and for a particular choice of coordinates.Keywords: Group Theory, Spinors, SU−2 Groups ...
Dray, Tevian
core   +6 more sources

Efficient Representation of Head-Related Transfer Functions With Combination of Spherical Harmonics and Spherical Wavelets

open access: yesIEEE Access, 2019
Recently, a modeling method for head-related transfer functions (HRTFs) in the spatial domain is proposed based on spherical wavelets. Because spherical wavelets are local functions on the sphere, HRTF local features can be efficiently represented by ...
Huaping Liu, Yong Fang, Qinghua Huang
doaj   +1 more source

Incorporation of anisotropic scattering into the method of characteristics

open access: yesNuclear Engineering and Technology, 2022
In this study, we incorporate an anisotropic scattering scheme involving spherical harmonics into the method of characteristics (MOC). The neutron transport solution in a light water reactor can be significantly improved because of the impact of an ...
Anisur Rahman, Deokjung Lee
doaj   +1 more source

View-Adaptive Gaussian Splatting With Dynamic Spherical Harmonics Modulation for Multi-Scale Urban Scene Rendering

open access: yesIEEE Access
Despite recent advances in large-scale novel view synthesis centered around CityGaussian, performance degradation still occurs under extreme view-scale changes such as transitions between aerial and ground-level viewpoints.
Jiye Kim   +4 more
doaj   +1 more source

Spherical Harmonics for Robust Next-Best-View Estimation

open access: yesIEEE Access
As 3D depth cameras become more affordable, the additional depth information proves useful in industrial setups. However, with a multiview camera configuration, the complete coverage of a 3D model can only be accurately captured from several views.
Alexandru Pop, Levente Tamas
doaj   +1 more source

SHTools: Tools for Working with Spherical Harmonics

open access: yesGeochemistry, Geophysics, Geosystems, 2018
Geophysical analyses are often performed in spherical geometry and require the use of spherical harmonic functions to express observables or physical quantities.
Mark A. Wieczorek, Matthias Meschede
doaj   +1 more source

Computation of spherical harmonics and approximation by spherical harmonic expansions [PDF]

open access: yes, 1985
A technique is developed for generating spherical harmonics by exact computation (in integer mode) thereby circumventing any source of rounding errors.
Freeden, W. (Willi)
core   +1 more source

Home - About - Disclaimer - Privacy