Results 11 to 20 of about 4,779 (264)

Nonlinear mixing in vapours [PDF]

open access: yesPhysics Bulletin, 1973
It is now more than ten years since the first experiment which demonstrated that the generation of harmonics, a commonplace phenomenon at audio and radiofrequencies, could also be made to occur at optical frequencies. Just as in the low frequency case, an element with a nonlinear response is needed to achieve this and at optical frequencies this is ...
openaire   +1 more source

A Mixed Shooting – Harmonic Balance Method for Unilaterally Constrained Mechanical Systems

open access: yesArchive of Mechanical Engineering, 2016
In this paper we present a mixed shooting – harmonic balance method for large linear mechanical systems on which local nonlinearities are imposed. The standard harmonic balance method (HBM), which approximates the periodic solution in frequency domain ...
Schreyer Frederic, Leine Remco I.
doaj   +1 more source

Finite-time H ∞ $H_{\infty }$ bounded control of networked control systems with mixed delays and stochastic nonlinearities

open access: yesAdvances in Difference Equations, 2020
In this study, we investigate the stochastic finite-time H ∞ $H_{\infty }$ bounded control problem for a class of networked control systems (NCSs) subject to mixed delays, stochastic nonlinearities, and randomly missing measurement.
Ling Hou, Dongyan Chen, Chan He
doaj   +1 more source

nonlinear mixing in the ionosphere

open access: yesGeophysical Research Letters, 1986
When the ionosphere is illuminated with two strong HF signals, nonlinear mixing processes can take place near the region of reflection. The first direct experimental evidence of such processes occurring in ionospheric plasma are presented in this paper. The experiments were performed at Arecibo, where the HF ionospheric modifier was split to operate as
Suman Ganguly, W. E. Gordon
openaire   +1 more source

Robust Stabilization for a Class of Uncertain Nonlinear Systems via a Novel Hybrid Control Applicable to Mechanical Systems

open access: yesAdvances in Mechanical Engineering, 2014
An important consideration in control system design is that of model uncertainty. Besides, systems with mixed uncertainties, chaotic vibrations, and input nonlinearities are not easily stabilized and traditional control schemes for linear systems are not
Yeong-Jeu Sun
doaj   +1 more source

Some new integral inequalities with mixed nonlinearities for discontinuous functions

open access: yesAdvances in Difference Equations, 2018
In this paper, we establish some new integral inequalities with mixed nonlinearities for discontinuous functions, which provide a handy tool in deriving the explicit bounds for the solutions of impulsive differential equations and differential-integral ...
Haidong Liu
doaj   +1 more source

Infinitely Many Solutions for a Class of Fractional Impulsive Coupled Systems with (p,q)-Laplacian

open access: yesDiscrete Dynamics in Nature and Society, 2018
By using the symmetric mountain pass lemma, we investigate the problem of existence of infinitely many solutions for a class of fractional impulsive coupled systems with (p,q)-Laplacian, which possesses mixed type nonlinearities, and the nonlinearities ...
Junping Xie, Xingyong Zhang
doaj   +1 more source

Oscillation Criteria for Certain Even Order Neutral Delay Differential Equations with Mixed Nonlinearities

open access: yesAbstract and Applied Analysis, 2014
We establish some oscillation criteria for the following certain even order neutral delay differential equations with mixed nonlinearities: rtzn-1tα-1zn-1t'+q0(t)(xτ0tα-1x(τ0(t))+q1t(x(τ1(t))β-1x(τ1(t))+q2t(x(τ2(t))γ-1x(τ2(t))=0, t≥t0, where z(t)=x(t)+p ...
Zhen-Lai Han   +3 more
doaj   +1 more source

Oscillation Criteria for Second-Order Forced Dynamic Equations with Mixed Nonlinearities

open access: yesAdvances in Difference Equations, 2009
We obtain new oscillation criteria for second-order forced dynamic equations on time scales containing mixed nonlinearities of the form , with , , where is a time scale interval with , the functions are right-dense continuous with , is the forward ...
Zafer A, Agarwal RaviP
doaj   +2 more sources

On weakly nonlinear waves in media exhibiting mixed nonlinearity

open access: yesJournal of Mathematical Analysis and Applications, 2003
The authors obtain the transport equations governing small amplitude high frequency disturbances, that include both quadratic and cubic nonlinearities inherent in hyperbolic systems of conservation laws. They derive the coefficients of the nonlinear terms in the transport equation in terms of the Glimm interaction coefficients.
SRINIVASAN, GK, SHARMA, VD
openaire   +2 more sources

Home - About - Disclaimer - Privacy