Results 21 to 30 of about 850,090 (318)

High-frequency Alfven waves in multi-ion coronal plasma : observational implications [PDF]

open access: yes, 2005
We investigate the effects of high-frequency (of order ion gyrofrequency) Alfvén and ion-cyclotron waves on ion emission lines by studying the dispersion of these waves in a multi-ion coronal plasma.
Ofman, L. (Leon)   +3 more
core   +1 more source

Ion temperature anisotropy effects on threshold conditions of a shear-modified current driven electrostatic ion-acoustic instability in the topside auroral ionosphere [PDF]

open access: yesAnnales Geophysicae, 2013
Temperature anisotropies may be encountered in space plasmas when there is a preferred direction, for instance, a strong magnetic or electric field. In this paper, we study how ion temperature anisotropy can affect the threshold conditions of a shear ...
P. J. G. Perron   +3 more
doaj   +1 more source

Structural Characteristics of Ion Holes in Plasma

open access: yesPlasma, 2021
Ion holes refer to the phase-space structures where the trapped ion density is lower at the center than at the rim. These structures are commonly observed in collisionless plasmas, such as the Earth’s magnetosphere.
Harikrishnan Aravindakshan   +3 more
doaj   +1 more source

Transmission electron microscopy with in situ ion irradiation [PDF]

open access: yes, 2015
The macroscopic properties of materials exposed to irradiation are determined by radiation damage effects which occur on the nanoscale. These phenomena are complex dynamic processes in which many competing mechanisms contribute to the evolution of the ...
Hinks, Jonathan Andrew, Hinks, J. A.
core   +1 more source

Calculation of edge ion temperature and poloidal rotation velocity from carbon III triplet measurements on the COMPASS tokamak

open access: yesNukleonika, 2016
A high-resolution spectroscopic system for the measurements of the CIII triplet at 465 nm was installed at the COMPASS tokamak. The Doppler broadening and shift of the measured spectral lines are used to calculate the edge ion temperature and poloidal ...
Tomeš Matěj   +4 more
doaj   +1 more source

Can the Thermodynamic Hodgkin-Huxley Model of Voltage-Dependent Conductance Extrapolate for Temperature? [PDF]

open access: yes, 2014
Hodgkin and Huxley (H-H) fitted their model of voltage-dependent conductances to experimental data using empirical functions of voltage. The thermodynamic H-H model of voltage dependent conductances is more physically plausible, as it constrains and ...
Michael D. Forrest   +2 more
core   +1 more source

Ion-Pair Engineering-Induced High Piezoelectricity in Bi4Ti3O12-Based High-Temperature Piezoceramics [PDF]

open access: yes, 2022
High-temperature piezoceramics are highly desirable for numerous technological applications ranging from the aerospace industry to the nuclear power sector. However, it is a grand challenge to achieve excellent piezoelectricity and high Curie temperature
Zhengyang Zhou   +11 more
core   +1 more source

The BEAN experiment - An EISCAT study of ion temperature anisotropies [PDF]

open access: yesAnnales Geophysicae, 1995
Results are presented from a novel EISCAT special programme, SP-UK-BEAN, intended for the direct measurement of the ion temperature anisotropy during ion frictional heating events in the high-latitude F-region.
I. W. McCrea, G. O. L. Jones, M. Lester
doaj   +1 more source

Effect of electron temperature in a magnetized plasma sheath using kinetic trajectory simulation

open access: yesBibechana, 2021
The understanding of the properties of magnetized plasma sheath has been various beneficial applications in surface treatment, electron emission gun, ion implantation, and nuclear fusion, etc.
R Chalise   +3 more
doaj   +3 more sources

VARIATIONS OF PLASMA TEMPERATURES IN IONOSPHERE OVER KHARKIV DURING EXTREME SOLAR MINIMUM

open access: yesRadio Physics and Radio Astronomy, 2016
Purpose: to present temperature variations of electrons and ions obtained at the Institute of Ionosphere (Kharkiv) with an incoherent scatter radar during the 23rd solar cycle minimum, and compare the obtained results with the corresponding data of IRI ...
M. M. Siusiuk   +3 more
doaj   +1 more source

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