Nonlinear dynamics of the backward-wave oscillator as the origin of nonstationary microwave electronics [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамика, 2021 Aim. This article presents a review of the non-stationary nonlinear phenomena in backward-wave oscillators (BWO). Methods. Numerical modeling using the nonstationary (time-domain) 1-D, 2-D, and 2-D nonlinear theory of electron beam interaction with a ...
Ryskin, Nikita Mikhailovich +3 more
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The Transient Behavior of Nonlinear Systems [PDF]
, 1960 It is shown that the classical perturbation procedure for treating nonlinear systems leads to solutions expressed as Fourier-like series with slowly varying coefficients.
Clauser, Francis H.
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Reaction networks as systems for resource allocation: a variational principle for their non-equilibrium steady states. [PDF]
PLoS ONE, 2012 Within a fully microscopic setting, we derive a variational principle for the non-equilibrium steady states of chemical reaction networks, valid for time-scales over which chemical potentials can be taken to be slowly varying: at stationarity the system ...
Andrea De Martino +3 more
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Maximum Power Point Tracking Using State-dependent Riccati equation based Model Reference Adaptive Control [PDF]
International Journal of Industrial Electronics, Control and Optimization, 2020 In this paper, an adaptive control method is proposed for maximum power point tracking (MPPT) in photovoltaic (PV) systems. For improving the performance of an MPPT, this study develops a two-level adaptive control structure that can decrease difficulty ...
Mostafa Rahideh +2 more
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Suboptimal variable structure control of uncertain nonlinear slowly varying systems
Systems Science & Control Engineering, 2018 In this paper, a new robust suboptimal controller is designed to stabilize a class of uncertain nonlinear time-varying systems with slowly varying parameters.
F. Pishkari, T. Binazadeh
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A Review about the Modeling and Simulation of Electro-Quasistatic Fields in HVDC Cable Systems
Energies, 2020 In comparison to high-voltage alternating current (HVAC) cable systems, high-voltage direct current (HVDC) systems have several advantages, e.g., the transmitted power or long-distance transmission.
Christoph Jörgens, Markus Clemens
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Scientific Reports, 2022 Quantum information processing requires fast manipulations of quantum systems in order to overcome dissipative effects. We propose a method to accelerate quantum dynamics and obtain a target state in a shorter time relative to unmodified dynamics, and ...
Shumpei Masuda +2 more
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Slowly modulated oscillations in nonlinear diffusion processes [PDF]
, 1977 It is shown here that certain systems of nonlinear (parabolic) reaction-diffusion equations have solutions which are approximated by oscillatory functions in the form R(ξ - cτ)P(t^*) where P(t^*) represents a sinusoidal oscillation on a fast time scale t*
Cohen, Donald S. +2 more
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Can a time varying external drive give rise to apparent criticality in neural systems?
PLoS Computational Biology, 2018 The finding of power law scaling in neural recordings lends support to the hypothesis of critical brain dynamics. However, power laws are not unique to critical systems and can arise from alternative mechanisms. Here, we investigate whether a common time-
Viola Priesemann, Oren Shriki
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Spatiotemporal dispersion and wave envelopes with relativistic and pseudorelativistic characteristics [PDF]
, 2012 A generic nonparaxial model for pulse envelopes is presented. Classic Schro¨dinger-type descriptions of wave propagation have their origins in slowly-varying envelopes combined with a Galilean boost to the local time frame.
G. S. McDonald +10 more
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