Results 71 to 80 of about 124,132 (280)
Randomized exponential integrators for modulated nonlinear Schr\"odinger equations [PDF]
, 2018 We consider the nonlinear Schr\"odinger equation with dispersion modulated by a (formal) derivative of a time-dependent function with fractional Sobolev regularity of class $W^{\alpha,2}$ for some $\alpha\in (0,1)$.
Hofmanová, Martina +2 more
core +3 more sources
Auditory Perceptual History Is Propagated through Alpha Oscillations [PDF]
Current Biology, 2019 Perception is a proactive, "predictive" process, in which the brain relies, at least in part, on accumulated experience to make best guesses about the world to test against sensory data, updating the guesses as new experience is acquired. Using novel behavioral methods, the present study demonstrates the role of alpha rhythms in communicating past ...
Ho, Hao Tam +3 more
openaire +5 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
Alpha Oscillations in Resisting Distraction
The role of alpha oscillations (8-13Hz) in suppressing distractors has been extensively debated. Some studies suggest that alpha oscillations support distractor suppression by increasing in regions processing anticipated distractors. However, other studies did not reproduce this effect. We identify the methodological differences in experimental designs
Mathilde Bonnefond, Ole Jensen
openaire +2 more sources
, 2010 We find that the amplitude of the $R_{xx}$ radiation-induced magnetoresistance oscillations in GaAs/AlGaAs system grows nonlinearly as $A \propto P^{\alpha}$ where $A$ is the amplitude and the exponent $\alpha < 1$.
B. K. Ridley +7 more
core +1 more source
Global acoustic oscillations on Alpha Bootis
The Astrophysical Journal, 1990 A two-week time series of precise radial velocity measurements of Alpha Bootis (Arcturus) covering 7-8 hr per night is reported. The radial barycentric velocity of the star is found to be -5021 + or - 5 m/s. When data from the whole run are jointly analyzed, several equispaced peaks in the frequency appear in the range of a few microhertz, the highest ...
Juan A. Belmonte +3 more
openaire +1 more source
Advanced Engineering Materials, EarlyView.This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar +6 more
wiley +1 more source
Frontiers in Human Neuroscience, 2020 Non-invasive brain stimulation (NIBS) techniques such as transcranial alternating current stimulation (tACS) have recently become extensively utilized due to their potential to modulate ongoing neuronal oscillatory activity and consequently to induce ...
Georgy Zarubin +10 more
doaj +1 more source
The amplitude of solar oscillations using stellar techniques
, 2008 The amplitudes of solar-like oscillations depend on the excitation and damping, both of which are controlled by convection. Comparing observations with theory should therefore improve our understanding of the underlying physics.
Arentoft, Torben +8 more
core +1 more source
On detecting harmonic oscillations [PDF]
, 2015 In this paper, we focus on the following testing problem: assume that we are given observations of a real-valued signal along the grid $0,1,\ldots,N-1$, corrupted by white Gaussian noise. We want to distinguish between two hypotheses: (a) the signal is a
Juditsky, Anatoli, Nemirovski, Arkadi
core +3 more sources