Results 51 to 60 of about 7,623 (154)

Method for prediction and control by uncertain microsatellite magnetic cleanliness based on calculation and compensation magnetic field spatial harmonics

Electrical engineering & Electromechanics
Aim. Development of method for prediction and control the microsatellite magnetic cleanliness taking into account the uncertainties of the magnetic characteristics of the microsatellite, based on calculation the magnetic field spatial spherical harmonics
B. I. Kuznetsov, T. B. Nikitina, I. V. Bovdui, K. V. Chunikhin, V. V. Kolomiets, B. B. Kobylianskyi   +5 more
doaj   +1 more source

Region Expansion of Background Field Removal with Local Spherical Harmonics Approximation for Whole-brain Quantitative Susceptibility Mapping. [PDF]

Magn Reson Med Sci, 2023
Shirai T, Sato R, Kawata Y, Bito Y, Ochi H.   +4 more
europepmc   +1 more source

Hole Size in a Spherical Resonator

International Scholastic Journal of Science, 2012
When air is blown strongly through a straw and across a hole in a hollow sphere, a high-pitched whistling sound is heard. This paper tests two models, Helmholtz Resonance and Spherical Harmonics, to determine which most ...
Jared Kearns
doaj  

Approximation on the sphere by weighted Fourier expansions

Journal of Applied Mathematics, 2005
The main theme of this paper is the approximation on the sphere by weighted sums of spherical harmonics. We give necessary and sufficient conditions on the weights for convergence in both the continuous and the LP cases.
V. A. Menegatto, A. C. Piantella
doaj   +1 more source

Gravity, Electrostatic and Thermal Fields of Slightly Flattened Triaxial Ellipsoidal Conductors via Spherical Harmonic Expansions with Irrational Polar Distance Powers

Mathematics
We present gravitational, electrostatic and thermal field intensities as series of spherical harmonics with the polar distance raised to irrational powers.
Gerassimos Manoussakis, George Fragoyiannis, Panayiotis Vafeas   +2 more
doaj   +1 more source

Size dependence of the surface spin disorder and surface anisotropy constant in ferrite nanoparticles. [PDF]

Nanoscale Adv, 2023
Gerina M, Sanna Angotzi M, Mameli V, Gajdošová V, Rainer DN, Dopita M, Steinke NJ, Aurélio D, Vejpravová J, Zákutná D.   +9 more
europepmc   +1 more source

Inversion Formulas for the Spherical Radon-Dunkl Transform

Symmetry, Integrability and Geometry: Methods and Applications, 2009
The spherical Radon-Dunkl transform R_κ, associated to weight functions invariant under a finite reflection group, is introduced, and some elementary properties are obtained in terms of h-harmonics.
Zhongkai Li, Futao Song
doaj   +1 more source

Dynamic spherical harmonics approach for shape classification of migrating cells. [PDF]

Sci Rep, 2020
Medyukhina A, Blickensdorf M, Cseresnyés Z, Ruef N, Stein JV, Figge MT.   +5 more
europepmc   +1 more source

Comparative Studies on the Radiative Heat Transfer in Arc Plasma and Its Impact in a Model of a Free-Burning Arc

Plasma
The radiative heat transfer in arc plasma models is considered from the point of view of its description in terms of a net emission coefficient, the method of spherical harmonics in its lowest order, and the discrete ordinate method.
Margarita Baeva, Yann Cressault, Petr Kloc   +2 more
doaj   +1 more source

A Novel Multi-Scale Particle Morphology Descriptor with the Application of SPHERICAL Harmonics. [PDF]

Materials (Basel), 2020
Xiong W, Wang J, Cheng Z.
europepmc   +1 more source