Results 11 to 20 of about 5,947,042 (303)

Thinned and Sparse Beamforming for Semicircular FDAs in the Transmit–Receive Domain

open access: yesRemote Sensing
The thinned and sparse beamforming for semicircular FDAs were investigated, where the excitation amplitudes were also considered in thinned semicircular FDAs, and only the elements’ positions were incorporated into the sparse semicircular FDA.
Anyi Wang   +4 more
doaj   +3 more sources

A characterization of rationality in free semicircular operators [PDF]

open access: yesJournal of Functional Analysis, 2021
. For free semicircular elements realized on the full Fock space, we prove an equivalence between rationality of operators obtained from them and finiteness of the rank of their commutators with right annihilation operators.
Akihiro Miyagawa
semanticscholar   +2 more sources

Banach-Space Operators Acting on Semicircular Elements Induced by p-Adic Number Fields over Primes p

open access: yesMathematics, 2019
In this paper, we study certain Banach-space operators acting on the Banach *-probability space ( LS , τ 0 ) generated by semicircular elements Θ p , j induced by p-adic number fields Q p over the set P of all
Ilwoo Cho
doaj   +2 more sources

Operator-valued Semicircular Elements: Solving A Quadratic Matrix Equation with Positivity Constraints [PDF]

open access: yesInternational Mathematics Research Notices, 2007
We show that the quadratic matrix equation $VW + \eta (W)W = I$, for given $V$ with positive real part and given analytic mapping $\eta$ with some positivity preserving properties, has exactly one solution $W$ with positive real part.
J. Helton, R. Far, R. Speicher
semanticscholar   +3 more sources

A-jump in horizontal inverted semicircular open channels [PDF]

open access: yesAin Shams Engineering Journal, 2013
The hydraulic jump is a transitional state from supercritical to subcritical flow. The phenomenon of the hydraulic jump has been widely studied because of its frequent occurrence in nature and because of its uses in many practical applications.
I.M.H. Rashwan
doaj   +2 more sources

Spectral properties of certain operators on the free Hilbert space \mathfrak{F}[H_{1},...,H_{N}] and the semicircular law [PDF]

open access: yesOpuscula Mathematica, 2021
In this paper, we fix \(N\)-many \(l^2\)-Hilbert spaces \(H_k\) whose dimensions are \(n_{k} \in \mathbb{N}^{\infty}=\mathbb{N} \cup \{\infty\}\), for \(k=1,\ldots,N\), for \(N \in \mathbb{N}\setminus\{1\}\).
Ilwoo Cho
doaj   +1 more source

The Brown measure of the sum of a self-adjoint element and an imaginary multiple of a semicircular element [PDF]

open access: yesLetters in Mathematical Physics, 2022
50 pages and 9 figures. Minor revisions in this version.
Brian C. Hall, Ching-Wei Ho
openaire   +3 more sources

Aerodynamic and Aeroacoustic Performance of a Wing with Structured Surface Inspired by Owl’s Wings [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
With the advent of various advanced materials, the idea of flying like birds has attracted considerable attention in recent years. In addition, aeroacoustics has become an important issue and is being widely studied.
R. Harbi Monfared   +4 more
doaj   +1 more source

Hearing Results after Transmastoid Superior Semicircular Canal Plugging for Superior Semicircular Canal Dehiscence: A Meta-Analysis. [PDF]

open access: yes, 2023
OBJECTIVE The transmastoid plugging of a superior semicircular canal is considered a safe and effective technique for the management of superior semicircular canal dehiscence (SSCD). The aim of this meta-analysis is to assess the postoperative hearing
Tanya Karrer   +15 more
core   +2 more sources

Calretinin Immunoreactivity in the VIIIth Nerve and Inner Ear Endorgans of Ranid Frogs

open access: yesFrontiers in Neuroscience, 2021
Calcium-binding proteins are essential for buffering intracellular calcium concentrations, which are critical for regulating cellular processes involved in neuronal computations. One such calcium-binding protein, calretinin, is present in many neurons of
Ingrid Reichenberger   +2 more
doaj   +1 more source

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