Results 61 to 70 of about 463,737 (318)

Sparse approximation of multivariate functions from small datasets via weighted orthogonal matching pursuit

open access: yes, 2019
We show the potential of greedy recovery strategies for the sparse approximation of multivariate functions from a small dataset of pointwise evaluations by considering an extension of the orthogonal matching pursuit to the setting of weighted sparsity ...
A Chkifa   +10 more
core   +1 more source

Orthogonal polynomials and Gaussian quadrature for refinable weight functions

open access: yesApplied and Computational Harmonic Analysis, 2004
A function \(\phi:\mathbb{R}\rightarrow \mathbb{R}\) is a weight function if the moments \[ \mu_{k}=\int_{-\infty}^{\infty} x^{k} \phi(x) dx\tag{1} \] exist for \(k=0,1,2, \ldots\) and \(\mu_{0}\neq 0\). It is a refinable function if it satisfies a refinement equation, which in the simplest case (where typically \(\phi\) has support \([0,n]\)) takes ...
Laurie DP, De Villiers JM
openaire   +2 more sources

Complementarity of Long‐Reads and Optical Mapping in Parkinson's Disease for Structural Variants

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Long‐read sequencing and optical genome mapping technologies have the ability to detect large and complex structural variants. This has led to the discovery of novel pathogenic variants in neurodegenerative movement disorders. Thus, we aimed to systematically compare the SV detection capabilities of OGM and ONT in Parkinson's disease.
André Fienemann   +17 more
wiley   +1 more source

Joint trajectory and beamforming design based on integrated sensing and communication for NOMA-enabled UAV

open access: yes上海师范大学学报. 自然科学版
To further enhance spectral efficiency and alleviate interference among users, an unmanned aerial vehicle (UVA)-based communication and sensing integrated system utilizing non-orthogonal multiple access (NOMA) technology was investigated.
Lü Yunxin, SU Ying, ZHANG Jing
doaj   +1 more source

A New Approach in Regression Analysis for Modeling Adsorption Isotherms

open access: yesThe Scientific World Journal, 2014
Numerous regression approaches to isotherm parameters estimation appear in the literature. The real insight into the proper modeling pattern can be achieved only by testing methods on a very big number of cases.
Dana D. Marković   +4 more
doaj   +1 more source

Spectrum Sharing for Device-to-Device Communication in Cellular Networks

open access: yes, 2014
This paper addresses two fundamental and interrelated issues in device-to-device (D2D) enhanced cellular networks. The first issue is how D2D users should access spectrum, and we consider two choices: overlay (orthogonal spectrum between D2D and cellular
Andrews, Jeffrey G.   +2 more
core   +1 more source

Quantifying the Impact of Ocrelizumab on Paramagnetic Rim Lesions in Multiple Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Paramagnetic rim lesions (PRLs) are a subset of chronic active multiple sclerosis (MS) lesions marked by iron‐laden microglia and macrophages. Ocrelizumab, a monoclonal antibody targeting CD20+ B cells, suppresses acute MS activity, but its effect on PRLs remains unclear. In a longitudinal study of 29 ocrelizumab‐treated patients with at least
Kimberly H. Markowitz   +9 more
wiley   +1 more source

Flow field uniformity analysis and structural optimization of coal pyrolysis heat exchanger

open access: yesEngineering Applications of Computational Fluid Mechanics, 2019
The design of heat exchanger structure relies more on experience and lacks a guiding method. In view of this, this paper takes existing heat exchanger design structure as the research object minimizing mean square error of velocity at the outlet of coal ...
Bo Sun   +4 more
doaj   +1 more source

Method for determining eigen numbers in heat conduction problems for a cylinder

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2023
RELEVANCE. Due to the difficulties of finding eigenvalues and proper functions for bodies with axial (cylinder) and central (ball) symmetries defined in classical methods from the edge Sturm-Liouville problems, including Bessel equations whose exact ...
E. V. Kotova   +2 more
doaj   +1 more source

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo   +3 more
wiley   +1 more source

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