Results 121 to 130 of about 10,062 (264)

Analysis representation of the coefficients of an ideal fractional-order digital differentiator

open access: yes四川大学学报. 自然科学版
This paper demonstrates that the coefficients of an ideal fractional-order digital differentiator are equal to the values of the fractional-order derivatives of the Sinc function at integer points.The coefficients of the ideal fractional-order digital ...
YANG Jin-Song, YANG Zi-Yi, YUAN Xiao
doaj  

Analysis of dthe electromagnetic scattering from flat plates by using different sinc-type basis fuctions in method of moments

open access: yes, 2012
: Electromagnetic scattering from three dimensional arbitrary flat surfaces illuminated by a plane wave is investigated by using sinc-type basis functions in the method of moments (MoM) in this study.
Başak Özbakış
core  

Modelling the Four‐Dimensional Power Line Sag Dynamics by Point Signature in Time‐Series Synthetic‐Aperture Radar Images

open access: yesHigh Voltage, EarlyView.
ABSTRACT Power lines in synthetic‐aperture radar (SAR) images are reflected as point signatures, which fluctuate annually in both the azimuth and range directions. A novel framework is proposed in this paper to evaluate the four‐dimensional dynamic status of power line sag using those point signatures in time‐series SAR images.
Sijie Ma   +4 more
wiley   +1 more source

NLO finite system size corrections to $2\to2$ scattering in $\phi^4$ theory using newly derived sum of sinc functions

open access: yesSciPost Physics Proceedings
Previously an equation of state for the relativistic hydrodynamics encountered in heavy-ion collisions at the LHC and RHIC has been calculated using lattice gauge theory methods.
Jean F. Du Plessis, William A. Horowitz
doaj   +1 more source

Mixed Super‐Circles

open access: yesComputer Graphics Forum, EarlyView.
Abstract We introduce mixed super‐circles, a position‐curvature formulation of the original dynamic 2D super‐helix model. Compared to the latter, purely curvature‐based model – the so‐called chained formulation –, the mixed formulation that we propose here drastically reduces the algorithmic complexity of the solving scheme – from quadratic to quasi ...
Emile Hohnadel   +2 more
wiley   +1 more source

Convergence of the Sinc method applied to Volterra integral equations

open access: yes, 2010
A collocation procedure is developed for the linear and nonlinear Volterra integral equations, using the globally defined Sinc and auxiliary basis functions.
Rashidinia, J., Zarebnia, M.
core  

Targeting PCSK9 in Vascular Smooth Muscle Cells: An Effective Strategy to Suppress Ferroptosis and Attenuate Abdominal Aortic Aneurysm Progression

open access: yesCell Proliferation, EarlyView.
PCSK9 aggravates AAA by promoting ferroptosis in VSMCs. In the pathological AAA environment, PCSK9 upregulation triggers ferritinophagy‐dependent degradation of FTH1, leading to Fe2+ release, triggering lipid peroxidation and ferroptosis, exacerbating AAA.
Mengdie Xia   +13 more
wiley   +1 more source

Optimal Hypoxia Mimetic Small Molecules for Enhancing Angiogenic Properties of Stem Cells From Human Exfoliated Deciduous Teeth

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim Hypoxic preconditioning of cells holds promise for regenerative therapies, yet identifying effective and safe methods for clinical application remains challenging. We aimed to determine optimal hypoxia‐mimetic small molecules (SMs) that stabilize hypoxia‐inducible factor‐1α (HIF‐1α) and their dosages for hypoxic preconditioning in stem ...
Hong Wang   +9 more
wiley   +1 more source

Numerical indefinite integration using the sinc method [PDF]

open access: yes, 2007
Thesis (MSc (Mathematics))--University of Stellenbosch, 2007.In this thesis, we study the numerical approximation of indefinite integrals with algebraic or logarithmic end-point singularities.
Akinola, Richard Olatokunbo
core  

Development of the sinc method for nonlinear integro-differential equations,

open access: yes, 2010
: We develop a numerical procedure for solving a class of nonlinear integro-differential equations of Fredholm type, using the globally defined Sinc basis functions.
M Zarebnia, K Jalaei, M Mirzaee Chalaki
core  

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