Results 11 to 20 of about 1,501,755 (279)

Proton acceleration in analytic reconnecting current sheets [PDF]

, 2002
Particle acceleration provides an important signature for the magnetic collapse that accompanies a solar flare. Most particle acceleration studies, however, invoke magnetic and electric field models that are analytically convenient rather than solutions ...
Alekseyev I. I., Bruthwiler D. L., Bulanov S. V., Bulanov S. V., Chen J., I. J. D. Craig, J. Heerikhuisen, Klein K. L., Litvinenko Y. E., Ryan J. M., Speiser T. W., Yuri E. Litvinenko, Zhu Z.   +12 more
core   +2 more sources

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

2.3 J, 25 Hz Nd:YAG/sapphire composite powerchip amplifier operating at room temperature [PDF]

EPJ Web of Conferences
We 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, Yahia Vincent, Odaka Hideho, Yoshida Mitsuhiro, Taira Takunori   +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, Dimple Sharma, Hitendra K. Malik   +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, Giusy Rita Maria La Rosa, Robin Vernooij, Riccardo Polosa   +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

An Infrared Non-Invasive System for Measuring Blood Glucose: A Primary Study using Serum Samples [PDF]

Journal of Biomedical Physics and Engineering
Background: Diabetes is a global concern, with an estimated 2 million individuals expected to be affected by the condition by 2024. Non-invasive glucose monitoring devices can greatly enhance patient care and management.Objective: This study aimed to ...
Ramin Jokari, Zahra Mahyari, Mohammad Javad Moulodi, Seyyed Mohammad Fatemi Ghiri, Hadi Tajalizadeh, Ali Loloee Jahromi, Alireza Nakhostin, Gholamreza Abdollahifard, Hossein Parsaei   +8 more
doaj   +1 more source

Relativistic self focusing and frequency shift of super-Gaussian laser beam in plasma

Results in Physics, 2020
Relativistic self focusing and frequency shift of laser beam having super-Gaussian profile in space and Gaussian profile in time is studied in a plasma. The relativistic mass nonlinearity is found to cause time dependent self focusing of the laser pulse ...
Hitendra K. Malik, Lalita Devi
doaj   +1 more source

Regularized Nonlinear Acceleration [PDF]

, 2018
We describe a convergence acceleration technique for unconstrained optimization problems. Our scheme computes estimates of the optimum from a nonlinear average of the iterates produced by any optimization method.
Bach, Francis, d'Aspremont, Alexandre, Scieur, Damien   +2 more
core   +5 more sources

Laser Accelerators [PDF]

IEEE Transactions on Nuclear Science, 1983
Laser accelerators may be conveniently characterized, by their mode of operation, into media, far-field, and near-field accelerators. The first category--media accelerators--include the Inverse Cherenkov Effect Accelerator, the Plasma Focus Accelerator, and the Beat Wave Accelerator (BWA).
openaire   +3 more sources