Plasma rotation effects on the trigger and evolution of MHD modes in a reversed shear profile are studied by nonlinear MHD simulations. It is found that, in rotating plasma, magnetic islands formed around inner and outer magnetic resonant surfaces, which are stable for the tearing mode, by an external perturbation, (driven magnetic island) evolve with different growth rates during an initial gr...

Oscillations of charge carriers in plasmonic metal nanoparticles activated by resonant absorption light are accompanied local temperature increase due to nonradiative plasma damping. The control this photothermal effect is considered essential for many applications ranging from photochemistry or nanomedicine chemical and physical sensing. Here, we present a study on the conversion visible into ...

– One of the important applications of robots is in material handling and transport of various shaped objects. In cases where an object cannot be directly grasped by the robot gripper, and must be carried by a hook, it may be subject to undesirable swings during transport. This paper presents an analytical method for minimizing the oscillation of a suspended object during transport. This method...

Abstract Oscillatory reconnection (a relaxation mechanism with periodic changes in connectivity) has been proposed as a potential physical underpinning several phenomena the solar atmosphere, including, but not limited to, quasi-periodic pulsations (QPPs). Despite its importance, however, never studied within hot, coronal plasma. We investigate oscillatory one million Kelvin plasma by solving f...

Wave and oscillatory activity is observed with modern imaging and spectral instruments in the visible light, EUV, X-ray and radio bands in all parts of the solar corona. Magnetohydrodynamic (MHD) wave theory gives satisfactory interpretation of these phenomena in terms of MHD modes of coronal structures. The paper reviews the current trends in the observational study of coronal oscillations, re...

The exponential increase in beam energy delivered by accelerators over the last seventy years is due in part to improvements and enlargements of fixed technology, and in part to the introduction of new acceleration techniques to replace those that had reached the outer bounds of their performance. The present technology of synchrotrons and linear accelerators is clearly near the end of the road...

The influence of reflections on the operation of the 2 MW, CW 170 GHz coaxial cavity gyrotron oscillating in the TE34,19 mode is studied. In particular, frequency-independent power reflections, e.g. from plasma or some elements of the transmission line, larger than 1% and occurring in a poor phase may lead to oscillation breakdown and should be avoided. Frequency-dependent reflections from a sp...