ABSTRACT In this paper, we performed magnetohydrodynamics numerical experiments to look into the dynamic behaviour of current sheet (CS) between coronal mass ejection (CME) and associated solar flare, especially CS oscillation plasmoid motions in conditions. During evolution, disrupting magnetic configuration becomes asymmetric first buffer region at bottom CME bubble. The Rayleigh−Taylor insta...

Mesenchymal stem cells (MSCs) are a promising candidate for cell-based therapy in regenerative medicine. These stem cells can interact with their mechanical microenvironment to control their functions. External mechanical cues can be perceived and transmitted into intracellular calcium dynamics to regulate various cellular processes. Recent studies indicate that human MSCs (hMSCs) exhibit a het...

Phospholipase C-zeta (PLCζ) is a strong candidate for the mammalian sperm-derived factor that triggers the Ca(2+) oscillations required for egg activation at fertilization. PLCζ lacks a PH domain, which targets PLCδ1 to the phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P(2)) substrate in the plasma membrane. Previous studies failed to detect PLCζ in the plasma membrane, hence the means of P...

the present research simulates time-periodic unsteady transonic flow around pitching airfoils via the solution of unsteady euler and navier-stokes equations, using time spectral method (tsm) and compares it with the traditional methods such as bdf and explicit structured adaptive grid method. the tsm uses a fourier representation in time and hence solves for the periodic state directly accordin...

A dynamic system of the three resonantly coupled waves, two of which are parametrically excited, is investigated. It is shown that when the pump amplitude is increased in this system, a strange attractor (analogous to the known Lorentz attractor) is produced and corresponds to stochastic self-oscillations of the wave amplitudes, yet the phases are always fully correlated. A concrete realization...

We compare quiescent and flare X-ray spectra of the RS CVn binary σ Gem obtained with the Chandra and XMMNewton grating spectrometers. We find that in addition to an overall 25% flux increase, which can be ascribed to variations in the system’s quiescence activity over the 15 months that passed between the observations, there is a hot plasma component of kTe >∼ 3 keV that arises with the flare....

Electromagnetically induced transparency ~EIT!, a phenomenon well known in atomic systems, has a natural analogy in a classical magnetized plasma. The magnetized plasma has a resonance for right-hand polarized electromagnetic waves at the electron cyclotron frequency V0 , so that a probe wave with frequency v15V0 cannot propagate through the plasma. The plasma can be made transparent to such a ...

A theoretical analysis was carried out to investigate the characteristics of plasma arc injected transverse to a transverse-alternating magnetic field. Two mathematical models were developed to describe both the oscillating amplitude of the plasma arc root and the heat flux density distribution of plasma arc on the workpiece surface. The characteristic of plasma arc under the external transvers...

An oscillating, weakly ionized surface plasma has been investigated for use in turbulent boundary layer viscous drag reduction. The study was based on reports showing that mechanical spanwise oscillations of a wall can reduce viscous drag due to a turbulent boundary layer by up to 40%. It was hypothesized that the plasma induced body force in high electric field gradients of a surface plasma al...

1 Computational Physics Laboratory, Division of Plasma Physics, Atomic Physics and Astrophysics, A.F. Ioffe Physical-Technical Institute of the Russian Academy of Sciences, St. Petersburg, Russia 2 Department of Integrative Medical Biology, Umea University, Umea, Sweden 3 Department of Neurodynamics and Neurobiology, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia 4 Neu...