Results 21 to 30 of about 54,703 (265)

Spherical Atomic Norm-Inspired Approach for Direction-of-Arrival Estimation of EM Waves Impinging on Spherical Antenna Array with Undefined Mutual Coupling

open access: yesApplied Sciences, 2023
A spherical antenna array (SAA) is an array-designed arrangement capable of scanning in almost all the radiation sphere with constant directivity. It finds recent applications in aerospace, spacecraft, vehicular and satellite communications.
Oluwole John Famoriji, Thokozani Shongwe
doaj   +1 more source

Thermal stability of ionic solids: A boiling points survey

open access: yesChemical Thermodynamics and Thermal Analysis, 2023
A survey of those standard inorganic materials which boil without sublimation or decomposition has yielded data for 110 unique materials. These separate according to their ambient lattice energies into groups of monohalides, dihalides, trihalides ...
Leslie Glasser
doaj   +1 more source

The atomic decomposition of harmonic functions satisfying certain conditions of integrability

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
Distributions on Euclidean spaces with derivatives of their Poisson integral satisfying certain natural conditions of integrability are represented as sums of weighted atoms.
Krzysztof Bogdan
doaj   +1 more source

Boundedness of multidimensional Hausdorff operator on Hardy-Morrey and Besov-Morrey spaces

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we establish some boundedness conditions for the multidimensional Hausdorff operator on the homogeneous Hardy-Morrey and on the Besov-Morrey space, and we extend some results in the recent papers by Jia and Wang, and by Mazzucato ...
Belay Mitiku Damtew
doaj   +1 more source

Atomic insight into the thermobaric effect of aluminized explosives

open access: yesFirePhysChem, 2022
The addition of active metallic particles to common explosives can greatly extend high-temperature and high-pressure time of explosion, as the so-called thermobaric effect. However, the atomic details for this effect remain unclear. This work presents an
Kai Zhong   +2 more
doaj   +1 more source

Internal Overvoltage Identification of Distribution Network via Time-Frequency Atomic Decomposition

open access: yesIEEE Access, 2019
Internal overvoltage accidents in the distribution network are likely to cause an equipment insulation breakdown and result in system power outages and economic losses.
Wei Gao   +4 more
doaj   +1 more source

On the atomic decomposition of đ»Âč and interpolation [PDF]

open access: yesProceedings of the American Mathematical Society, 1986
The author gives a basic proof of the atomic decomposition for functions f in \(H^ 1\) (of the upper half plane). He uses the nontangential maximal function Nf in this proof. Using the symmetric decreasing rearrangement \((NF)^*\) of the maximal function he obtains an estimate quality (''Peetre K-functional'') \[ K(f,t)=\inf \{\| g\|_{H^ 1}+t\| h\|_{L^{
openaire   +2 more sources

Perturbations of Banach Frames and Atomic Decompositions [PDF]

open access: yesMathematische Nachrichten, 1997
AbstractBanach frames and atomic decompositions are sequences that have basis‐like properties but which need not be bases. In particular, they allow elements of a Banach space to be written as linear combinations of the frame or atomic decomposition elements in a stable manner.
Christensen, Ole, Heil, Christopher E.
openaire   +1 more source

Degrees of randomized computability: decomposition into atoms

open access: yesCoRR, 2021
In this paper we study structural properties of LV-degrees of the algebra of collections of sequences that are non-negligible in the sense that they can be computed by a probabilistic algorithm with positive probability. We construct atoms and infinitely divisible elements of this algebra generated by sequences, which cannot be Martin-Löf random and ...
openaire   +2 more sources

Fast atomic decomposition by the inhibition method [PDF]

open access: yesProceedings 15th International Conference on Pattern Recognition. ICPR-2000, 2002
A new algorithm is introduced which is related to matching pursuit but allows updating more than one coding coefficient per iteration: the updated coefficients correspond to mutually orthogonal elements of the dictionary. Coding experiments on natural images show that the new method achieves the same trade-off as matching pursuit between number of ...
Pece, Arthur, Petkov, Nikolay
openaire   +2 more sources

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