Results 51 to 60 of about 170,615 (216)

Crossover behavior for a periodic chaotic model in its fractal and mirror symmetrical design

open access: yesResults in Physics, 2022
Dynamical systems related to damped and driven oscillators and those with both periodic and chaotic oscillations have proven to be fascinating for many researchers around the world who are dealing with non-linear oscillatory models.
Emile F. Doungmo Goufo
doaj   +1 more source

Numerical and Experimental Evaluation of a Simplified Lateral Spring Formulation for Rocking Structures

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Rocking podium isolation systems have gained significant research interest as a method of limiting seismic demands on superstructures and eliminating residual post‐earthquake drifts through self‐centring behaviour. However, while numerous models of varying complexity, including analytical, phenomenological, and physical formulations, have been
Marawan Zaki   +2 more
wiley   +1 more source

Chaotic communications over radio channels [PDF]

open access: yes, 2001
The real issues of communicating over radio channels with continuous time chaotic signals are addressed. Synchronized and nonsynchronized methods are assessed.
Williams, C
core   +1 more source

Optimal phase description of chaotic oscillators [PDF]

open access: yesPhysical Review E, 2012
We introduce an optimal phase description of chaotic oscillations by generalizing the concept of isochrones. On chaotic attractors possessing a general phase description, we define the optimal isophases as Poincaré surfaces showing return times as constant as possible.
Schwabedal, Justus T. C.   +3 more
openaire   +4 more sources

Computational Analysis of the Vibrational Response of Lunar Regolith Made of Nonspherical Grains

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Vibration‐based systems have shown that appropriately oriented and tuned mechanical oscillations can disrupt regolith interlocking and promote flow. Building on this evidence, the present study investigates vibration‐controlled granular discharge as a potential ISRU (In Situ Resource Utilization) strategy, with the aim of supporting ...
Lewis Traquair   +4 more
wiley   +1 more source

Gallium arsenide field effect transistors microstrip integrated circuit dielectric resonator oscillators [PDF]

open access: yes, 1988
Bibliography: leaves 175-177.This thesis is concerned with Gallium Arsenide Metal Semiconductor Field Effect Transistor Microstrip Integrated Circuit Dielectric Resonator Oscillators (GaAs MESFET MIC DROs) - the different types, their design and their ...
Crouch, David Andrew
core   +1 more source

Adaptive Synchronization of Chaotic Systems considering Performance Parameters of Operational Amplifiers

open access: yesAdvances in Mathematical Physics, 2015
This paper addresses an adaptive control approach for synchronizing two chaotic oscillators with saturated nonlinear function series as nonlinear functions.
Sergio Ruíz-Hernández   +6 more
doaj   +1 more source

A lightweight AES algorithm implementation for encrypting voice messages using field programmable gate arrays

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
The security of data is a major concern in this digital era. In general text and image data are well protected with the help of existing standards, meanwhile, securing voice communications is a challenging task.
Keshav Kumar   +2 more
doaj   +1 more source

Chaotic chirped-pulse oscillators

open access: yesOptics Express, 2013
We present results of experimental investigation of the chaotic and quasi-periodic regime in the chirped-pulsed (dissipative soliton) Cr:ZnS and Cr:ZnSe mid-IR oscillators with significant third-order dispersion. The instability develops when the spectrum edge approaches resonance with a linear wave either due to power increase or by dispersion ...
Sorokin, Evgeni   +3 more
openaire   +3 more sources

Energetic microdomains and the vascular control of neuronal and muscle excitability: Toward a unified model

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend The capillary–mitochondria–ion channel (CMIC) axis scales structural resources to match functional workload. (Left) In settings of restricted energetic capacity (e.g. cortical neurons), sparse capillary networks and modest mitochondrial pools set a lower energetic ceiling, sufficient to support phasic, low‐workload excitability. (
L. Fernando Santana, Scott Earley
wiley   +1 more source

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