Results 131 to 140 of about 11,999,664 (286)

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

Stochastic Optimal Control based on Value-Function Approximation using Sinc Interpolation

open access: yes, 2008
An effcient approach for solving stochastic optimal control problems is to employ dynamic programming (DP). For continuous-valued nonlinear systems, the corresponding DP recursion generally cannot be solved in closed form.
Florian Weissel   +7 more
core   +1 more source

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

Acoustic Green's Functions using the 2D Sinc-Galerkin Method [PDF]

open access: yes, 2014
In many acoustic problems, the radiated sound field is dominated by scattering effects. Green's functions represent the scattering behaviour of a particular geometry and are required to propagate acoustic disturbances through complex geometries using ...
Dupère, Iain D. J.   +1 more
core   +1 more source

The number of the ELM in the four PSO based ensembles of ELM on approximating the SinC function with 20 independent runs.

open access: yes, 2016
The number of the ELM in the four PSO based ensembles of ELM on approximating the SinC function with 20 independent runs.
Fei Han (24308)   +4 more
core   +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

Variable Doppler Starting Point Keystone Transform for Radar Maneuvering Target Detection

open access: yesRemote Sensing
The Doppler band compensated by the keystone transform (KT) is limited. Therefore, it needs to be used in conjunction with the Doppler ambiguity compensation function to correct the range migration (RM) caused by maneuvering targets with Doppler ...
Wei Jia   +4 more
doaj   +1 more source

Convergence analysis of the sinc collocation method for integro-differential equations system [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2016
In this paper, a numerical solution for a system of linear Fredholm integro-differential equations by means of the sinc method is considered. This approximation reduces the system of integro-differential equations to an explicit system of algebraic ...
Mohammad Zarebnia
doaj  

A Function Based on Chebyshev Polynomials as an Alternative to the Sinc Function in FIR Filter Design

open access: yes
The sinc function is often used as the basis for the design of discrete linear-phase FIR filters. However the Fourier transform of the truncated sinc function exhibits ripple in the pass band due to the Gibbs phenomenon.
Oxby, Paul W.
core  

A Bayesian approach to spectroscopic depth sectioning for locating dopant atoms

open access: yesJournal of Microscopy, EarlyView.
Abstract Locating dopants in 3D is of great interest as advanced materials and devices increasingly rely on control at atomic dimensions, and microscopy tools are constantly in development for this purpose. One potential tool is electron energy loss spectroscopy (EELS) depth sectioning, where a core‐loss signal is collected as a function of electron ...
Michael Deimetry   +3 more
wiley   +1 more source

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