Results 61 to 70 of about 86,444 (281)
Oscillation criteria for third order delay nonlinear differential equations
Electronic Journal of Qualitative Theory of Differential Equations, 2012 The purpose of this paper is to give oscillation criteria for the third order delay nonlinear differential equation \begin{equation*} \lbrack a_{2}(t)\{(a_{1}(t)(x^{\prime }(t))^{\alpha _{1}})^{\prime}\}^{\alpha _{2}}]^{\prime }+q(t)f(x(g(t)))=0, \end ...
E. Elabbasy +2 more
doaj +1 more source
Global Asymptotic Stability of a System of Difference Equations with Quadratic Terms
Communications in Advanced Mathematical Sciences, 2023 In this article, we discuss the global asymptotic stability of following system of difference equations with quadratic terms: $x_{i+1}=\alpha+\beta \frac{y_{i-1}}{y_{i}^{2}},\quad y_{i+1}=\alpha+\beta \frac{x_{i-1}}{x_{i}^{2} }$ where $\alpha$, $\beta ...
Mohamed Abd El-moneam
doaj +1 more source
Temperature Dependence of Microwave Photoresistance in 2D Electron Systems
, 2009 We report on the temperature dependence of microwave-induced resistance oscillations in high-mobility two-dimensional electron systems. We find that the oscillation amplitude decays exponentially with increasing temperature, as $\exp(-\alpha T^2)$, where
A. T. Hatke +7 more
core +1 more source
Growth Rate in the Dynamical Dark Energy Models [PDF]
, 2014 Dark Energy models with slowly-rolling cosmological scalar field provide a popular alternative to the standard, time-independent cosmological constant model.
Arkhipova, Natalia A. +3 more
core +3 more sources
A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller
International Journal of Adaptive Control and Signal Processing, EarlyView.Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg +5 more
wiley +1 more source
Asteroseismology and calibration of alpha Cen binary system
, 2002 Using the oscillation frequencies of alpha Cen A recently discovered by Bouchy & Carrier, the available astrometric, photometric and spectroscopic data, we tried to improve the calibration of the visual binary system alpha Cen.
Berthomieu, G. +5 more
core +1 more source
Microsaccades and EEG alpha oscillations: a close relationship?
Frontiers in Human Neuroscience, 2011 Microsaccades (MS) are small (< 1°), involuntary eye movements that occur at an average rate of 1-2/sec during visual fixation. MS have received considerable attention by the EEG community after it was shown that muscle spikes from MS contaminate the gamma band (Yuval-Greenberg et al., 2008). At last ICON, we demonstrated that MS also generate sizeable
Dimigen, Olaf +4 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.The corrosion performance of AlSi7Mg and AlSi10Mg alloys produced through selective laser melting (SLM) was examined under compressive stress in a chloride environment. Electrochemical analyses, including open‐circuit potential (OCP), potentiodynamic polarization (CPP), and electrochemical impedance spectroscopy (EIS), were complemented by scanning ...
Femi John Akinfolarin +2 more
wiley +1 more source
No evidence for tactile entrainment of attention
Frontiers in Psychology, 2023 Temporal patterns in our environment provide a rich source of information, to which endogenous neural processes linked to perception and attention can synchronize. This phenomenon, known as entrainment, has so far been studied predominately in the visual
Ulrich Pomper
doaj +1 more source
Oscillation frequencies and mode lifetimes in alpha Centauri A
, 2004 We analyse our recently-published velocity measurements of alpha Cen A (Butler et al. 2004). After adjusting the weights on a night-by-night basis in order to optimize the window function to minimize sidelobes, we extract 42 oscillation frequencies with ...
Chaplin W. J. +12 more
core +1 more source