phase shift/ A5220 Elementary processes in plasma A5235 Waves, oscillations, and instabilities in plasmaThe effect of collisions on longitudinal waves in a plasma with an initial anisotropic pressure has been considered and the time evolution of the amplitude and the phase of the wave are calculated.doi:10.1016/0375-9601(75)90623-4T.N. B...
The Doppler-shift oscillations are commonly interpreted as longitudinal modes. Our aim is to investigate the relationship between loop dynamics and flows seen in TRACE 195\\AA images and Doppler shifts observed by SUMER in Si III 1113.2\\AA and Fe XIX 1118.1\\AA at the time of a C.8-...
In a stationary wave (A) All the particles of the medium vibrate in phase (B) All the antinodes vibrate in phase © All alternate antinodes vibrate in ph
2, which forms a chiral structured waveguide. Such a structure is relevant to the theory of chiral metamaterials, subjected to the control of the wave localisation and wave dispersion. The connections between the spinners are maintained by massless springs, and the gyropendulums are positioned at ...
Neural oscillations are involved in many different cognitive operations1,2,3, and considering their cross-frequency coupling permits to more closely approach their function, e.g., perception, memory, attention, etc.4. In the domain of natural speech recognition, an important role has been assigned...
the oscillations are interpreted as two upwellings, as marked (and labeled) by the large upward-pointing arrows. There are backscatter ‘plumes’ associated with the crests, and those with the ‘descending’ side of each oscillation; the descending side would be the west wall of an upwelling. ...
Inertia, which means the resistance a mass offers to being set in motion, will be discussed later in this section. Other relationships of liquids in motion you must be familiar with. Among these are volume and velocity of flow; flow rate, and speed; laminar and turbulent flow; and more ...
physical plasma properties are often hard to infer directly and wave properties directly depend on these physical conditions. Therefore, prominence seismology seeks to obtain information about prominence physical conditions from a comparison between observations and theoretical models of oscillations. ...
[3,4]. Suppression of a thermoacoustic instability in two coupled Rijke tubes in the presence of noise is discussed in Ref. [5]. Sensitivity and nonlinear dynamics of thermoacoustic oscillations are reviewed in [6]. A complex systems approach to modeling and mitigating thermoacoustic instability ...
We conclude that waves, which the observed oscillations are signatures of, are common in the active region studied, over a broad range of frequencies. The change in the distribution of the oscillations present at frequencies less than 8 mHz and those at all frequencies above this indicates a ...