Results 31 to 40 of about 1,134,462 (290)

Averaging method and two-sided bounded solutions on the axis of systems with impulsive effects at non-fixed times

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2021
The averaging method, originally offered by Krylov and Bogolyubov for ordinary differential equations, is one of the most widespread and effective methods for the analysis of nonlinear dynamical systems.
O.N. Stanzhytskyi   +2 more
doaj   +1 more source

An Algorithmic Approach to Limit Cycles of Nonlinear Differential Systems: the Averaging Method Revisited

open access: yes, 2019
This paper introduces an algorithmic approach to the analysis of bifurcation of limit cycles from the centers of nonlinear continuous differential systems via the averaging method. We develop three algorithms to implement the averaging method.
Bautin Nikolai N.   +5 more
core   +1 more source

Averaging in multifrequency systems with multi-point conditions and a delay

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii
For multifrequency system of differential equations with a discrete and integral delay we find conditions for the existence and uniqueness of the solution. Linear multipoint conditions are set for the solution.
Yaroslav Bihun, Ihor Skutar
doaj   +1 more source

Van Der Pol-Duffing oscillator under combined harmonic and random excitations

open access: yesVietnam Journal of Mechanics, 2014
A new technique is proposed to investigate the response of Van der Pol-Duffing (V-D for short) oscillator to a combination of harmonic and random excitations in the primary resonant frequency region.
N. D. Anh, V. L. Zakovorotny, D. N. Hao
doaj   +1 more source

Dual Averaging Method for Online Graph-structured Sparsity

open access: yes, 2019
Online learning algorithms update models via one sample per iteration, thus efficient to process large-scale datasets and useful to detect malicious events for social benefits, such as disease outbreak and traffic congestion on the fly. However, existing
Bahmani Sohail   +13 more
core   +1 more source

Whitham's Method and Dubrovin-Novikov Bracket in Single-Phase and Multiphase Cases [PDF]

open access: yes, 2012
In this paper we examine in detail the procedure of averaging of the local field-theoretic Poisson brackets proposed by B.A. Dubrovin and S.P. Novikov for the method of Whitham.
Maltsev, Andrei Ya.
core   +7 more sources

Communication and Language Profiles of Children Treated for Posterior Fossa Brain Tumors

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Cognitive and language deficits are frequently reported sequelae of posterior fossa brain tumors (PFBT). Typically, delayed onset impedes prompt assessment and early intervention. This has devastating implications for quality of life.
Zara Sved   +4 more
wiley   +1 more source

Stressful Events Reported by Childhood Cancer Survivors and Community Controls From the St. Jude Lifetime (SJLIFE) Cohort: A Mixed Method Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware   +13 more
wiley   +1 more source

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  

Unheard and Under‐Supported: Health‐Related Quality of Life in Children, Adolescents, and Young Adults With Sickle Cell Disease

open access: yesPediatric Blood &Cancer, EarlyView.
Abstract Background Sickle cell disease (SCD) is an autosomal recessive hemoglobinopathy affecting millions of individuals worldwide. The clinical expression and psychosocial burden of SCD vary widely across geographical, cultural, and healthcare system contexts, underscoring the need for setting‐specific approaches to assessment.
Desiré Fantasia   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy