Results 31 to 40 of about 671,164 (293)

Discussion on Rayleigh equation obtained for a Hall thruster plasma with dust

open access: yesJournal 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

Resonant third harmonic generation of super-Gaussian laser beam in a rippled density plasma

open access: yesJournal 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

Measurements of plasma density profile evolutions with a channel-guided laser

open access: yesHigh 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

Gravitomagnetic accelerators [PDF]

open access: yesPhysics Letters A, 2011
4 pages, 2 figures; v2: reference added; v3: slightly expanded version accepted for publication in Phys.
Chicone, Carmen Charles   +1 more
openaire   +3 more sources

Identifying spin bias of nonsignificant findings in biomedical studies

open access: yesBMC 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

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

open access: yesJournal 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   +8 more
doaj   +1 more source

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

open access: yesResults 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

Photon acceleration by laser produced wakefields on Astra [PDF]

open access: yes, 2004
This chapter looks at photon acceleration by laser produced wakefields on ...
Thomas, A.G.R.   +17 more
core   +4 more sources

Growth of Rayleigh instability in a Hall thruster channel having dust in exit region

open access: yesAIP Advances, 2019
In a Hall thruster, the axial movement of ions towards the exit of the chamber and the divergence of ion beam sputter the wall and thus the maximum erosion of wall of the exit region takes place.
Hitendra K. Malik   +2 more
doaj   +1 more source

Acceleration in turbulent channel flow

open access: yes, 2010
We use Direct Numerical Simulations of turbulent channel flow to study the acceleration A corresponding to the full fluid velocity u and the acceleration a corresponding to the fluctuating velocity u? ? u?hui where hui is the mean flow.
S. W. Coleman   +7 more
core   +1 more source

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