Results 41 to 50 of about 394,445 (282)

Efficient Spherical Harmonics Representation of 3D Objects [PDF]

15th Pacific Conference on Computer Graphics and Applications (PG'07), 2007
In this paper, we present a new and efficient spherical harmonics decomposition for spherical functions defining 3D triangulated objects. Such spherical functions are intrinsically associated to star-shaped objects. However, our results can be extended to any triangular object after segmentation into star-shaped surface patches and recomposition of the
Mousa, Mohamed, Chaine, Raphaëlle, Akkouche, Samir, Galin, Eric   +3 more
openaire   +2 more sources

Scale-discretised ridgelet transform on the sphere [PDF]

, 2019
We revisit the spherical Radon transform, also called the Funk-Radon transform, viewing it as an axisymmetric convolution on the sphere. Viewing the spherical Radon transform in this manner leads to a straightforward derivation of its spherical harmonic ...
candes, candes, candes, chan, klein, mcewen, mcewen, mcewen, mcewen, mcewen, radon, sanz, starck   +12 more
core   +2 more sources

Intuitionistic fuzzy sets: Spherical representation and distances [PDF]

International Journal of Intelligent Systems, 2009
In Intuitionistic Fuzzy Set (IFS) theory more than 10 different geometrical interpretations are constructed. In the paper, two (the most popular) of them are discussed. A new -- spherical -- geometrical representation of the IFSs is described. The idea for it was introduced for the first time by \textit{I.
Yingjie Yang, Francisco Chiclana
openaire   +1 more source

The Gravity Force Generated by a Non-Rotating Level Ellipsoid of Revolution with Low Eccentricity as a Series of Spherical Harmonics

Mathematics, 2023
The gravity force of a gravity field generated by a non-rotating level ellipsoid of revolution enclosing mass M is given as a solution of a partial differential equation along with a boundary condition of Dirichlet type. The partial differential equation
Gerassimos Manoussakis
doaj   +1 more source

Hospitalization Through Families’ Eyes: Comparing Inpatient Care Quality for Children With Sickle Cell Disease and Cystic Fibrosis in Canada

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker, Kyle Kemp, Perri Tutelman, Sharon H. J. Hou, Paul Fairie, Maria Santana, Gregory M. T. Guilcher, Taryn Fay‐McClymont, Glenda Bendiak, Wendy Pelletier, Nicola Wright, Fiona Schulte   +11 more
wiley   +1 more source

Comparison of differential representations for radially symmetric Stokes flow

Abstract and Applied Analysis, 2004
Papkovich and Neuber (PN), and Palaniappan, Nigam, Amaranath, and Usha (PNAU) proposed two different representations of the velocity and the pressure fields in Stokes flow, in terms of harmonic and biharmonic functions, which form a practical tool for ...
George Dassios, Panayiotis Vafeas
doaj   +1 more source

Fermion Quasi-Spherical Harmonics

, 1998
Spherical Harmonics, $Y_\ell^m(\theta,\phi)$, are derived and presented (in a Table) for half-odd-integer values of $\ell$ and $m$. These functions are eigenfunctions of $L^2$ and $L_z$ written as differential operators in the spherical-polar angles ...
Abramowitz M, Altmann S L, Arslan S, D Beamish, G Hunter, Hannabuss K, Heck S, I M Walker, I Schlifer, Icke V, Jones H F, Kaempffer F A, Kauffman L H, M Kowalski, Mackey G W, McQuarrie D A, Miller K S, Morandi G, Morse P M, Nash C, P Ecimovic, Rae A I M, S Arslan, S Donev, S Heck, Schlifer I, Tomonaga S I   +26 more
core   +1 more source

Representations of copointed Hopf algebras arising from the tetrahedron rack [PDF]

, 2013
We study the copointed Hopf algebras attached to the Nichols algebra of the affine rack $\Aff(\F_4,\omega)$, also known as tetrahedron rack, and the 2-cocycle -1. We investigate the so-called Verma modules and classify all the simple modules. We conclude
Pogorelsky, Barbara, Vay, Cristian
core   +3 more sources

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Wavelet Electrodynamics I

, 2001
A new representation for solutions of Maxwell's equations is derived. Instead of being expanded in plane waves, the solutions are given as linear superpositions of spherical wavelets dynamically adapted to the Maxwell field and well-localized in space at
Aslaksen, Aslaksen, Bateman, Bateman, Cunningham, Daubechies, Gerald Kaiser, Gross, Kaiser, Kaiser, Kaiser, Kaiser, Kaiser, Kaiser, Kaiser, Kaiser, Kaiser, Mallat, Paul, Streater   +19 more
core   +1 more source