Results 41 to 50 of about 334,564 (72)

Transformation of Irregular Solid Spherical Harmonics at Parallel Translation of the Coordinate System [PDF]

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки, 2017
When studying physical phenomena in spatial regions bounded by spherical or slightly non-spherical surfaces, spherical functions and solid spherical harmonics are widely used.
A.A. Aganin, A.I. Davletshin
doaj  

Limitations and Performance Analysis of Spherical Sector Harmonics for Sound Field Processing

open access: yesApplied Sciences
Developing spherical sector harmonics (SSHs) benefits sound field decomposition and analysis over spherical sector regions. Although SSHs demonstrate potential in the field of spatial audio, a comprehensive investigation into their properties and ...
Hanwen Bi   +4 more
doaj   +1 more source

Dominant mode shift of bubble shape instability due to surface tension variation under MHz ultrasound [PDF]

open access: yesAIP Advances
Occurrence condition for non-spherical shape mode of acoustically oscillated lipidic-coated bubble was numerically investigated by solving both the Keller–Miksis equation and dynamic equation for distortion amplitude of spherical harmonics.
Kanji D. Hattori, Takuya Yamamoto
doaj   +1 more source

Spherical harmonics to quantify cranial asymmetry in deformational plagiocephaly

open access: yesScientific Reports, 2022
Cranial deformation and deformational plagiocephaly (DP) in particular affect an important percentage of infants. The assessment and diagnosis of the deformation are commonly carried by manual measurements that provide low interuser accuracy.
Jonas Grieb   +2 more
doaj   +1 more source

Importance Sampling Spherical Harmonics

open access: yes, 2009
In this paper we present the first practical method for importance sampling functions represented as spherical harmonics (SH). Given a spherical probability density function (PDF) represented as a vector of SH coefficients, our method warps an input ...
Carr, Nathan A.   +2 more
core   +1 more source

Vector Spherical Harmonics for Data‐Assimilative Neutral Wind Estimation

open access: yesSpace Weather, 2022
In this work we enable the data assimilation algorithm Estimating Model Parameters from Ionospheric Reverse Engineering (EMPIRE) to estimate global neutral winds.
Aurora López Rubio   +1 more
doaj   +1 more source

Investigation of symmetric non-spherical particle shapes by applying low-resolution spherical harmonics

open access: yesNonlinear Analysis, 2017
The issue of mathematical modelling of non-spherical shapes of particles is considered. Thus, application of the spherical harmonics (SH) technique in modelling the simplest symmetric star-shaped particles is demonstrated by applying low-resolution ...
Urtė Radvilaitė   +2 more
doaj   +1 more source

Remarks on the mean-square values of the geomagnetic field and its components

open access: yesAnnals of Geophysics, 1995
When considering functions on the Earth's (spherical) surface, mean-square values are often used to indicate their (relative) magnitude. If a function is separated into it, (essentially) spherical harmonic components then, provided these individual ...
F. J. Lowes, C. Falcone, A. De Santis
doaj   +1 more source

Comparison of Spherical Data Interpolation Methods for Spacecraft Radiation Pressure Characteristics Interpolation

open access: yesIEEE Access
This paper presents a comparison of four interpolation techniques for interpolation of spacecraft solar radiation data characteristics. As radiative characteristics are functions of spacecraft orientation with respect to the incoming radiation vector ...
Mateusz Sochacki, Olgierd Skromak
doaj   +1 more source

Loudness stability of binaural sound with spherical harmonic representation of sparse head-related transfer functions

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2019
In response to renewed interest in virtual and augmented reality, the need for high-quality spatial audio systems has emerged. The reproduction of immersive and realistic virtual sound requires high resolution individualized head-related transfer ...
Zamir Ben-Hur   +3 more
doaj   +1 more source

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