Results 21 to 30 of about 394,445 (282)

Multipole expansion of strongly focussed laser beams [PDF]

open access: yes, 2003
Multipole expansion of an incident radiation field - that is, representation of the fields as sums of vector spherical wavefunctions - is essential for theoretical light scattering methods such as the T-matrix method and generalised Lorenz-Mie theory ...
Ashkin   +26 more
core   +1 more source

Semantic visualization for spherical representation

open access: yesProceedings of the 20th ACM SIGKDD international conference on Knowledge discovery and data mining, 2014
Visualization of high-dimensional data such as text documents is widely applicable. The traditional means is to find an appropriate embedding of the high-dimensional representation in a low-dimensional visualizable space. As topic modeling is a useful form of dimensionality reduction that preserves the semantics in documents, recent approaches aim for ...
Tuan M. V. Le, Hady Wirawan Lauw
openaire   +3 more sources

Asymptotic extraction approach for antennas in a multilayered spherical media [PDF]

open access: yes, 2010
An efficient algorithm is introduced to enhance the convergence of dyadic Green's functions (DGF) in a layered spherical media where asymptotic expressions have been developed. The formulated expressions involve an infinite series of spherical eigenmodes
Khamas, S.K.
core   +1 more source

On the signature of certain spherical representations [PDF]

open access: yesPacific Journal of Mathematics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

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

Global High-Resolution Magnetic Field Inversion Using Spherical Harmonic Representation of Tesseroids as Individual Sources

open access: yesGeosciences, 2020
In this study, we present a novel approach combining the advantages of tesseroids in representing geophysical structures though their voxel-like discretization features with a spherical harmonic representation of the magnetic field.
Eldar Baykiev   +2 more
doaj   +1 more source

Decision Aid Algorithm for Kidney Transplants Under Disc Spherical Fuzzy Sets With Distinctive Radii Information

open access: yesIEEE Access, 2023
The Circular Spherical Fuzzy Set (C-SFS) and Disc Spherical Fuzzy Set (D-SFS), an innovation of the well-known Spherical Fuzzy Set, are introduced in this research study.
Shahzaib Ashraf   +4 more
doaj   +1 more source

A few remarks on integral representation for zonal spherical functions on the symmetric space $SU(N)/SO(N,\R)$ [PDF]

open access: yes, 1997
The integral representation on the orthogonal groups for zonal spherical functions on the symmetric space $SU(N)/SO(N,\R)$ is used to obtain a generating function for such functions.
A M Perelomov   +6 more
core   +2 more sources

Weakly Orthogonal Spherical Harmonics in a Non-Polar Spherical Coordinates and its Application to Functions on Cubed-Sphere

open access: yesSultan Qaboos University Journal for Science, 2012
In a recent paper (Nasir, 2007), a set of weakly orthogonal and completely orthogonal spherical harmonics in a non-polar spherical coordinate system based on a cubed-sphere was constructed. In this work, we explore some linear relations between these two
M.A.A.M. Faham, H.M. Nasir
doaj   +1 more source

Spherical Harmonic Representation of Energetic Neutral Atom Flux Components Observed by IBEX

open access: yesThe Astrophysical Journal Supplement Series, 2023
The Interstellar Boundary Explorer (IBEX) images the heliosphere by observing energetic neutral atoms (ENAs). The IBEX-Hi instrument on board IBEX provides full-sky maps of ENA fluxes produced in the heliosphere and very local interstellar medium through
P. Swaczyna   +2 more
doaj   +1 more source

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