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相关论文: Plasma Brain Dynamics (PBD): A Mechanism for EEG W…

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1.5D Vlasov-Maxwell simulations are employed to model electromagnetic emission generation in a fully self-consistent plasma kinetic model for the first time in the solar physics context. The simulations mimic the plasma emission mechanism…

太阳与恒星天体物理 · 物理学 2010-12-16 David Tsiklauri

Patients with epilepsy can manifest short, sub-clinical epileptic "bursts" in addition to full-blown clinical seizures. We believe the relationship between these two classes of events---something not previously studied…

机器学习 · 统计学 2014-07-29 Drausin F. Wulsin , Emily B. Fox , Brian Litt

We study the propagation of electromagnetic waves in tenuous plasmas, where the wave frequency, $\omega_0$, is much larger than the plasma frequency, $\omega_{\rm P}$. We show that in pair plasmas nonlinear effects are weak for $a_0 \ll…

高能天体物理现象 · 物理学 2024-09-09 Emanuele Sobacchi , Masanori Iwamoto , Lorenzo Sironi , Tsvi Piran

Pulsar radio emission is modelled as a sum of two completely polarized non-orthogonal modes with the randomly varying Stokes parameters and intensity ratio. The modes are the result of polarization evolution of the original natural waves in…

天体物理学 · 物理学 2009-11-11 S. A. Petrova

The nonlinear theory of two-dimensional ion-acoustic (IA) solitary waves and shocks (SWS) is revisited in a dissipative quantum plasma. The effects of dispersion, caused by the charge separation of electrons and ions and the quantum force…

等离子体物理 · 物理学 2015-06-23 A. P. Misra , B. Sahu

Nonlinear ion-acoustic cnoidal wave structures are studied in an unmagnetized quantum plasma. Using the reductive perturbation method, a Korteweg-de Vries equation is derived for appropriate boundary conditions and nonlinear periodic wave…

等离子体物理 · 物理学 2016-03-09 Shahzad Mahmood , Fernando Haas

Electron-acoustic solitary waves (EASWs) in quantum plasma comprising stationary ions, cold electrons, hot electrons, and kappa-distributed electrons have been investigated. The generalized Kappa-Fermi distribution has been modified to…

等离子体物理 · 物理学 2025-04-07 Aakanksha Singh , Punit Kumar

In this paper we consider nonlinear interaction between gravitational and electromagnetic waves in a strongly magnetized plasma. More specifically, we investigate the propagation of gravitational waves with the direction of propagation…

广义相对论与量子宇宙学 · 物理学 2016-08-16 A. Källberg , G. Brodin , M. Bradley

We describe main ideas of method of many-particle quantum hydrodynamics allows to derive equations for description of quantum plasma evolution. We also present definitions of collective quantum variables suitable for quantum plasmas. We…

等离子体物理 · 物理学 2014-07-02 P. A. Andreev , L. S. Kuz'menkov

We study the propagation and scattering of electromagnetic waves by random arrays of dipolar cylinders in a uniform medium. A set of self-consistent equations, incorporating all orders of multiple scattering of the electromagnetic waves, is…

无序系统与神经网络 · 物理学 2009-11-10 Ken Wang , Zhen Ye

We study the propagation of gravitational waves (GW) in a uniformly magnetized plasma at arbitrary angles to the magnetic field. No a priori assumptions are made about the temperature, and we consider both a plasma at rest and a plasma…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Joachim Moortgat , Jan Kuijpers

The propagation of a quasi-harmonic electromagnetic wave in a bulk hyperbolic dielectric metamaterial is considered. If the group velocities dispersion is not taken into account, then wave propagation can be described either by the…

斑图形成与孤子 · 物理学 2022-11-04 A. I. Maimistov

In contrast to relativistically induced transparency in electron--ion plasmas, where nonlinear electromagnetic waves render initially opaque plasmas transparent, we show using kinetic simulations that such waves can instead make initially…

等离子体物理 · 物理学 2026-04-28 Kavin Tangtartharakul , Alexey Arefiev , Maxim Lyutikov

Electroencephalography (EEG) plays a significant role in the Brain Computer Interface (BCI) domain, due to its non-invasive nature, low cost, and ease of use, making it a highly desirable option for widespread adoption by the general…

信号处理 · 电气工程与系统科学 2023-03-13 Giulio Tosato , Cesare M. Dalbagno , Francesco Fumagalli

The term gestalt has been widely used in the field of psychology which defined the perception of human mind to group any object not in part but as a unified whole. Music in general is polytonic i.e. a combination of a number of pure tones…

Positive and negative ions forming so-called pair plasma differing in sign of their charge but asymmetric in mass and temperature support a new acoustic mode where damping of heavier ion dominates. The condition for the excitation of ion…

等离子体物理 · 物理学 2016-07-27 Zahida Ehsan , N. L. Tsintsadze , H. A. Shah , R. M. G. M. Trines , M. Imran

In this paper, we address the theoretical resolution of the Vlasov-Gauss system from the linear regime to the strongly nonlinear one, when significant trapping has occurred. The electric field is that of a sinusoidal electron plasma wave…

等离子体物理 · 物理学 2017-12-06 Didier Benisti

Human brain response is the overall ability of the brain in analyzing internal and external stimuli in the form of transferred energy to the mind/brain phase-space and thus, making the proper decisions. During the last decade scientists…

偏微分方程分析 · 数学 2012-04-04 Hamidreza Namazi , Vladimir V. Kulish

The relation between EEG rhythms, brain functions, and behavioral correlates is well-established. Some mechanisms underlying rhythm generation are understood, enabling the replication of brain rhythms $in\; silico$. This allows to explore…

神经元与认知 · 定量生物学 2024-08-02 Gustavo Menesse , Joaquin J. Torres

We here study a network of synaptic relations mingling excitatory and inhibitory neuron nodes that displays oscillations quite similar to electroencephalogram (EEG) brain waves, and identify abrupt variations brought about by swift synaptic…

神经元与认知 · 定量生物学 2021-02-17 Jorge Pretel , Joaquin J. Torres , J. Marro