Results 1 to 10 of about 25,851 (165)

The Degradation of Cellulose by Radio Frequency Plasma [PDF]

open access: yesFibers, 2018
This paper describes the results of using oxygen (O2) plasma to treat both greige and scoured cotton yarns to cause significant degradation of cellulose.
Larissa Marie Shepherd   +1 more
doaj   +2 more sources

Enhancement of Radio Frequency Plasma Plume by Pulsed Plasma Bullet at Atmospheric Pressure

open access: yesApplied Sciences, 2022
An experimental study of a plasma plume generated by radio frequency atmospheric pressure glow discharge and enhanced in terms of plume length and intensity by pulsed discharge is presented.
Qianhan Han   +4 more
doaj   +3 more sources

Alternative solid hydrocarbons as propellants for electrothermal plasma radio-frequency thrusters [PDF]

open access: yesScientific Reports
Onboard propulsion is vital for extending the operational lifespan of CubeSat missions. Although electrothermal plasma thrusters are a promising low-power solution, their development has historically focused on gaseous propellants, leaving alternative ...
Thimthana Lee   +4 more
doaj   +2 more sources

Influence of anisotropic plasma antenna parameters on scattering pattern and radar cross section [PDF]

open access: yesفناوری در مهندسی هوافضا, 2022
In this research, a plasma column with a circular cross section magnetized by a DC-axial magnetic field is investigated as a plasma antenna. The radar cross-section and the scattering pattern of radio waves landing to the antenna are studied. The present
zeinab rahmani   +2 more
doaj   +1 more source

Kinetic Simulation of He radio frequency capacitively coupled plasma [PDF]

open access: yesDelta Journal of Science, 2021
Radiofrequency capacitively coupled plasma is studied theoretically using a Particle-in-Cell code. For He discharge, the timeaveraged sheaths are in the range of few centimeters.
N. El-Siragy   +3 more
doaj   +1 more source

Enhancement of Fungal Enzyme Production by Radio-Frequency Electromagnetic Fields

open access: yesJournal of Fungi, 2022
Enzyme production by microorganisms on an industrial scale has demonstrated technical bottlenecks, such as low efficiency in enzyme expression and extracellular secretion.
Mayura Veerana   +8 more
doaj   +1 more source

Possibilities of Estimating F2 Layer Peak Plasma Frequency Using HF Radiation from High Apogee Satellites over Arctic Region

open access: yesRemote Sensing, 2021
Based on the results of mathematical modeling, we consider the possibility to estimate the plasma frequency F2 layer maximum of the polar ionosphere (critical frequency, foF2) using frequency-sweeping radiation from a highly elliptical spacecraft orbit ...
Igor Krasheninnikov, Givi Givishvili
doaj   +1 more source

Teknologi Sistem Plasma Radio –Frekuensi (RF) Untuk Menghilangkan Bakteri Escherichia Coli Pada Air Minum

open access: yesJurnal Nasional Teknik Elektro, 2014
Refill drinking water is a source of public drinking water in Indonesia, but the quality is not guaranteed. less optimal means of water treatment to remove pollutants in Drinking Water Refill (AMIU), especially for raw water containing total coliforms ...
Dean Corio, Ariadi Hazmi, Reni Desmiarti
doaj   +3 more sources

The Helical Resonator: A Scheme for Radio Frequency Plasma Generation

open access: yesApplied Sciences, 2021
The helical resonator is a scheme for the production of high voltage at radio frequency, useful for gas breakdown and plasma sustainment, which, through a proper design, enables avoiding the use of a matching network.
Emilio Martines   +3 more
doaj   +1 more source

Impact of Micropulse and Radio Frequency Coupling in an Atmospheric Pressure Plasma Jet on the Synthesis of Gold Nanoparticles

open access: yesPlasma, 2023
Gold nanoparticles have been extensively studied due to their unique optical and electronic properties which make them attractive for a wide range of applications in biomedicine, electronics, and catalysis.
Tatiana Habib   +4 more
doaj   +1 more source

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