Results 31 to 40 of about 852,854 (246)

Limit cycles of Liénard polynomial systems type by averaging method

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
We apply the averaging theory of first and second order for studying the limit cycles of generalized polynomial Linard systems of the ...
Boulfoul Amel, Mellahi Nawal
doaj   +1 more source

The averaging of nonlocal Hamiltonian structures in Whitham's method

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
We consider the m-phase Whitham's averaging method and propose the procedure of “averaging” nonlocal Hamiltonian structures. The procedure is based on the existence of a sufficient number of local-commuting integrals of the system and gives the Poisson ...
Andrei Ya. Maltsev
doaj   +1 more source

A modified R1 X R1 method for helioseismic rotation inversions

open access: yes, 1995
We present an efficient method for two dimensional inversions for the solar rotation rate using the Subtractive Optimally Localized Averages (SOLA) method and a modification of the R1 X R1 technique proposed by Sekii (1993).
Pijpers, F. P., Thompson, M. J.
core   +1 more source

Diagrammatic method of integration over the unitary group, with applications to quantum transport in mesoscopic systems [PDF]

open access: yes, 1996
A diagrammatic method is presented for averaging over the circular ensemble of random-matrix theory. The method is applied to phase-coherent conduction through a chaotic cavity (a ``quantum dot'') and through the interface between a normal metal and a ...
Al’tshuler B. L.   +9 more
core   +3 more sources

Development and quantitative assessment of deep learning-based image enhancement for optical coherence tomography

open access: yesBMC Ophthalmology, 2022
Purpose To develop a deep learning-based framework to improve the image quality of optical coherence tomography (OCT) and evaluate its image enhancement effect with the traditional image averaging method from a clinical perspective.
Xinyu Zhao   +9 more
doaj   +1 more source

Effect of non-polynomial input to a switching circuit [PDF]

open access: yes, 2001
In this paper, the validity of the state-space averaging method is analyzed. We assume that the state-space piecewise method is an exact model for a fast switching circuit.
Ling, Wing-Kuen, Tam, Peter Kwong-Shun
core  

Survival Outcomes and Complications Among Canadian Children With Retinoblastoma: A Population‐Based Report From CYP‐C

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine   +14 more
wiley   +1 more source

Investigation of high order stochastic differential equations using averaging method

open access: yesVietnam Journal of Mechanics, 2007
The averaging method is a useful tool for investigating both deterministic and stochastic quasilinear system. In the stochastic problems, however, the method has often been developed only for mechanical systems subjected to white noise excitations.In the
Nguyen Dong Anh, Ngo Thi Hong Hue
doaj   +1 more source

A method of estimating the average derivative [PDF]

open access: yesJournal of Econometrics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +4 more sources

Comparing instance-averaging with instance-saving learning algorithms [PDF]

open access: yes, 1988
The goal of our research is to understand the power and appropriateness of instance-based representations and their associated acquisition methods. This paper concerns two methods for reducing storage requirements for instance-based learning algorithms ...
Aha, David W., Kibler, Dennis
core  

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