Ion Distribution Models for Defect Fluorite Zro 2 - AO 1.5 (a = Ln, Y) Solid Solutions: II. Thermodynamics of Mixing and Ordering

2020 ◽  
Author(s):  
A.A. Bukaemskiy ◽  
V.L. Vinograd
Keyword(s):  
Solid Solutions ◽  
Ion Distribution ◽  
Distribution Models ◽  
Thermodynamics Of Mixing

Aspects on metal ion distribution models in pulp washing simulation

2007 ◽  
Vol 58 (2) ◽  
pp. 262-266 ◽  
Author(s):  
Karin Mattsson ◽  
Gunnar Eriksson ◽  
Urban Grén ◽  
Krister Ström
Keyword(s):  
Metal Ion ◽  
Ion Distribution ◽  
Distribution Models

scholarly journals Current state-of-the-art for the measurement of non-Maxwellian plasma parameters with the EISCAT UHF Facility

1996 ◽  
Vol 14 (12) ◽  
pp. 1506-1512 ◽  
Author(s):  
D. Hubert ◽  
F. Leblanc ◽  
P. Gaimard
Keyword(s):  
Electron Temperature ◽  
Electron Density ◽  
Distribution Model ◽  
Ion Temperature ◽  
Ion Distribution ◽  
Distribution Models ◽  
Plasma Parameters ◽  
Aspect Angle ◽  
Complementary Measurement ◽  
Incoherent Radar Spectra

Abstract. New results on the information that can be extracted from simulated non-Maxwellian incoherent radar spectra are presented. The cases of a pure ionosphere and of a composite ionosphere typical of a given altitude of the auroral F region are considered. In the case of a pure ionosphere of NO+ or O+ ions it has been shown that the electron temperature and the electron density can be derived from a Maxwellian analysis of radar spectra measured at aspect angles of 0° or 21° respectively; the ion temperature and ion temperature anisotropy can be derived from a non- constraining model such as the 1D Raman fitting of a complementary measurement made at an aspect angle larger than 0° for the NO+ ions, or at an aspect angle larger than 21° for the O+ ions. Moreover with such measurements at large aspect angles, the shape of the velocity ion distribution functions can simultaneously be inferred. The case of a composite ionosphere of atomic O+ and molecular NO+ ions is a difficult challenge which requires simultaneously a complementary measurement of the electron temperature to provide the ion composition and the electron density from the incoherent radar spectra at a specific aspect angle of 21°; hence, a model dependent routine is necessary to derive the ion temperatures and ion temperature anisotropies. In the case where the electron temperature is not given, a routine which depends on ion distribution models is required first: the better the ion distribution models are, the more accurately derived the plasma parameters will be. In both cases of a composite ionosphere, the 1D Raman fitting can be used to keep a check on the validity of the results provided by the ion distribution model dependent routine.

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