Results 21 to 30 of about 2,015,688 (302)

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

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

Average Temperature Estimation for Lithium-Ion Batteries at Variable Environment Temperature

open access: yesShanghai Jiaotong Daxue xuebao, 2021
The performance of lithium-ion batteries is greatly affected by the temperature change. Therefore, it is of great significance to get the temperature information to develop the thermal management system.
JIANG Yu, CHEN Ziqiang
doaj   +1 more source

Gyrofluid simulations of collisionless reconnection in the presence of diamagnetic effects

open access: yes, 2010
The effects of the ion Larmor radius on magnetic reconnection are investigated by means of numerical simulations, with a Hamiltonian gyrofluid model. In the linear regime, it is found that ion diamagnetic effects decrease the growth rate of the dominant ...
Biskamp D   +15 more
core   +2 more sources

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

Non-Arrhenius ionic conductivities in glasses due to a distribution of activation energies [PDF]

open access: yes, 2012
Previously observed non-Arrhenius behavior in fast ion conducting glasses [\textit{Phys.\ Rev.\ Lett.}\ \textbf{76}, 70 (1996)] occurs at temperatures near the glass transition temperature, $T_{g}$, and is attributed to changes in the ion mobility due to
Beckman, Scott   +4 more
core   +3 more sources

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

Ion implantation and low-temperature epitaxial regrowth of GaAs [PDF]

open access: yes, 1981
Channeling and transmission electron microscopy have been used to investigate the parameters that govern the extent of damage in ion‐implanted GaAs and the crystal quality following capless furnace annealing at low temperature (∼400 °C). The implantation‐
Grimaldi, M. G.   +3 more
core   +1 more source

Searching for additional heating - [OII] emission in the diffuse ionized gas of NGC891, NGC4631 and NGC3079 [PDF]

open access: yes, 2001
We present spectroscopic data of ionized gas in the disk--halo regions of three edge-on galaxies, NGC 891, NGC 4631 and NGC 3079, covering a wavelength range from [\ion{O}{2}] $\lambda$3727\AA to [\ion{S}{2}] $\lambda$6716.4\AA.
A. M. N. Ferguson   +6 more
core   +2 more sources

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

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