Results 11 to 20 of about 563,475 (317)
Acceleration of Material Waves in Fermi Accelerator [PDF]
Mathematical Problems in Engineering, 2009 Cold Atoms bouncing on modulated atomic mirror exhibits acceleration and dynamical localization subject to modulated strength. We explain characteristics of acceleration and define control parameters in terms of effective Planck′s constant. We show that the effective Planck′s constant plays a vital role in limiting classical‐like overall linear growth
Akram, Javed +3 more
openaire +2 more sources
The accelerated acceleration of the universe
Journal of Cosmology and Astroparticle Physics, 2006 We present a simple mechanism which can mimic dark energy with an equation of state w < -1 as deduced from the supernova data. We imagine that the universe is accelerating under the control of a quintessence field, which is moving up a very gently sloping potential.
Csaki, Csaba +2 more
openaire +2 more sources
Vertical evolution of auroral acceleration at substorm onset [PDF]
, 2009 This study describes the onset process of auroral substorms in connection with the vertical evolution of auroral particle acceleration, on the basis of auroral kilometric radiation (AKR) dynamics.
Morioka, A. +17 more
core +1 more source
FDTD ANALYSIS OF NONLINEAR MAGNETIZED FERRITES: APPLICATION TO MODELING OF OSCILLATION FORMING IN COAXIAL LINE WITH FERRITE [PDF]
Радиофизика и электроника, 2017 In recent years, the high-voltage pulse devices using nonlinear properties of ferrite have received more attention. For the analysis of this kind of objects, the 2D numerical modeling technology of nonlinear saturated ferrites by FDTD method has been ...
S. Yu. Karelin
doaj +1 more source
MAXIMAL ACCELERATION OR MAXIMAL ACCELERATIONS? [PDF]
International Journal of Modern Physics D, 2003 We review the arguments supporting the existence of a maximal acceleration for a massive particle and show that different values of this upper limit can be predicted in different physical situations.
openaire +2 more sources
Measurements of plasma density profile evolutions with a channel-guided laser
High Power Laser Science and Engineering, 2023 The discharged capillary plasma channel has been extensively studied as a high-gradient particle acceleration and transmission medium. A novel measurement method of plasma channel density profiles has been employed, where the role of plasma channels ...
Tong Yang +11 more
doaj +1 more source
2.3 J, 25 Hz Nd:YAG/sapphire composite powerchip amplifier operating at room temperature [PDF]
EPJ Web of ConferencesWe demonstrate a sub-nanosecond Joule-class room-temperature diode-pumped solid-state chip laser comprising of periodically bonded Nd:YAG and sapphire crystal plates and operating at 25 Hz, delivering the peak power over 3 GW.
Kausas Arvydas +4 more
doaj +1 more source
Discussion on Rayleigh equation obtained for a Hall thruster plasma with dust
Journal of Theoretical and Applied Physics, 2018 The present study focuses on the Rayleigh equation derived in the case of a Hall thruster plasma having dust contamination, produced near the exit of the channel due to the finite divergence of the accelerated ions and the sputtering of the walls. In the
Jasvendra Tyagi +2 more
doaj +1 more source
Identifying spin bias of nonsignificant findings in biomedical studies
BMC Research Notes, 2023 Objective The purpose of this research note is to share a technique for the identification of spin bias that we developed as part of a living systematic review on the cardiovascular testing of e-cigarette substitution for cigarette smoking.
Renée O’Leary +3 more
doaj +1 more source
Resonant third harmonic generation of super-Gaussian laser beam in a rippled density plasma
Journal of Theoretical and Applied Physics, 2018 Resonant third harmonic generation of super-Gaussian laser beam in rippled density plasma is studied. Both the relativistic and ponderomotive nonlinearities are included in the analysis, and the study is done for self-guided laser beam.
Lalita Devi, Hitendra K. Malik
doaj +1 more source