Results 31 to 40 of about 2,734,185 (277)

High-contrast and reversible scattering switching via hybrid metal-dielectric metasurfaces

open access: yesBeilstein Journal of Nanotechnology, 2018
Novel types of optical hybrid metasurfaces consist of metallic and dielectric elements are designed and proposed for controlling the interference between magnetic and electric modes of the system, in a reversible manner.
Jonathan Ward   +5 more
doaj   +1 more source

Oscillation of Solutions of Nonlinear Difference Equation With a Super-linear Neutral Term

open access: yesNonautonomous Dynamical Systems, 2018
This paper deals with the oscillation of solutions of certain class of neutral difference equation ∆(an∆(χn + pnχαn−k)) + qnχβn+1−l = 0, where α and β are ratio of odd positive integers.
Dharuman C., Thandapani E.
doaj   +1 more source

A Review on a Class of Second Order Nonlinear Singular BVPs

open access: yesMathematics, 2020
Several real-life problems are modeled by nonlinear singular differential equations. In this article, we study a class of nonlinear singular differential equations, explore its various aspects, and provide a detailed literature survey. Nonlinear singular
Amit K. Verma   +3 more
doaj   +1 more source

Nonlinear spillover effect of us monetary policy uncertainty on China’s systematic financial risks

open access: yesJournal of Business Economics and Management, 2022
Monetary policy uncertainty (MPU) not only imposes a great impact on the systematic financial risks of a country but also generates a significant spillover effect on countries having close economic exchanges with the former under the background of global
Zhigang Ouyang   +3 more
doaj   +1 more source

Behavior of strengthened concrete beams damaged by thermal shock [PDF]

open access: yesИнженерно-строительный журнал, 2020
In the last two decades, using of Carbon Fiber Reinforced Polymers (CFRP) in strengthening of deficient reinforced concrete structural elements has been increased due to their ease of installation, low invasiveness, high corrosion resistance, and high ...
R. Al-Rousan
doaj   +1 more source

From Nonlinear Identification to Linear Parameter Varying Models: Benchmark Examples

open access: yes, 2018
Linear parameter-varying (LPV) models form a powerful model class to analyze and control a (nonlinear) system of interest. Identifying a LPV model of a nonlinear system can be challenging due to the difficulty of selecting the scheduling variable(s) a ...
Schoukens, Maarten, Tóth, Roland
core   +1 more source

Analysis of output frequencies of nonlinear systems [PDF]

open access: yes, 2007
In this paper, an algorithm is derived for the determination of the output frequency ranges of nonlinear systems, which extends previous results on the output frequencies of nonlinear systems to a more general situation.
Billings, S.A., Lang, Z.Q., Wu, X.F.
core   +1 more source

Simulation Study on the Influence of Multifrequency Ultrasound on Transient Cavitation Threshold in Different Media

open access: yesApplied Sciences, 2020
Through the introduction of multifrequency ultrasound technology, remarkable results have been achieved in tissue ablation and other aspects.
Hu Dong, Xiao Zou, Shengyou Qian
doaj   +1 more source

Gender Matters: Nonlinear Relationships Between Heart Rate Variability and Depression and Positive Affect

open access: yesFrontiers in Neuroscience, 2021
Vagally mediated heart rate variability (vmHRV), a measure of the parasympathetic nervous system’s control over the heart, is often negatively related to maladaptive emotional outcomes.
Derek P. Spangler   +11 more
doaj   +1 more source

Extended equation for description of nonlinear waves in liquid with gas bubbles

open access: yes, 2013
Nonlinear waves in a liquid with gas bubbles are studied. Higher order terms with respect to the small parameter are taken into account in the derivation of the equation for nonlinear waves.
Kudryashov, Nikolai A.   +1 more
core   +1 more source

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