Application of PIXE for the determination of transition elements in the grouping study of archaeological clay potteries

2017 ◽  
Vol 46 (3) ◽  
pp. 180-185 ◽  
Author(s):  
K. B. Dasari ◽  
R. Acharya ◽  
D. K. Ray ◽  
N. Lakshmana Das
Keyword(s):  
Transition Elements ◽  
Grouping Study

Calcul des éléments dipolaires et quadrupolaires de la matrice de transition moléculaire dans Na2

1990 ◽  
Vol 68 (4-5) ◽  
pp. 365-368 ◽  
Author(s):  
K. Hussein ◽  
O. Babaky
Keyword(s):  
Numerical Integration ◽  
Electronic States ◽  
Transition Elements ◽  
Simple Method ◽  
Selection Rules ◽  
Variable Formula ◽  
Method Of Calculation ◽  
Analytical Integration ◽  
Fifth Order

In this paper, we study a calculation of the transition elements [Formula: see text] between electronic states of the diatomic molecules Na2. We show the necessary selection rules for the determination of these operators by a method of analytical integration on the variable [Formula: see text], combined with a numerical integration to fifth order. The values found by this simple method of calculation are very reasonable and show that the important transitions [Formula: see text], [Formula: see text]; and [Formula: see text] of the dimer Na2 are dipolar. [Traduit par la revue]

Quantitative Determination of Low Part per Billion Concentrations of Transition Elements in Zirconium and Hafnium Fluorides

1991 ◽  
Vol 67-68 ◽  
pp. 19-24 ◽  
Author(s):  
K.J. Ewing ◽  
J. Jaganathan ◽  
E.A. Buckley ◽  
L. Peitersen ◽  
Ishwar D. Aggarwal
Keyword(s):  
Quantitative Determination ◽  
Transition Elements

scholarly journals On the Determination of Molar Heat Capacity of Transition Elements: From the Absolute Zero to the Melting Point

2021 ◽  
Author(s):  
Ivaldo Leão Ferreira ◽  
José Adilson de Castro ◽  
Amauri Garcia
Keyword(s):  
Heat Capacity ◽  
Specific Heat ◽  
Molar Heat Capacity ◽  
Materials Science ◽  
Solid Phase ◽  
Transition Elements ◽  
Phase Nucleation ◽  
New Formulation ◽  
Solid Liquid

Molar specific heat is one of the most important thermophysical properties to determine the sensible heat, heat of transformation, enthalpy, entropy, thermal conductivity, and many other physical properties present in several fields of physics, chemistry, materials science, metallurgy, and engineering. Recently, a model was proposed to calculate the Density of State by limiting the total number of modes by solid–liquid and solid–solid phase nucleation and by the entropy associated with phase transition. In this model, the new formulation of Debye’s equation encompasses the phonic, electronic, and rotational energies contributions to the molar heat capacity of the solids. Anomalies observed in the molar specific heat capacity, such as thermal, magnetic, configurational transitions, and electronic, can be treated by their transitional entropies. Model predictions are compared with experimental scatter for transitional elements.

Determination of trace transition elements in solids by proton induced x-ray emission analysis

1977 ◽  
Vol 49 (3) ◽  
pp. 432-435 ◽  
Author(s):  
Arthur. Mittler ◽  
Barry K. Barnes ◽  
Robert. Litman ◽  
Frantz. Holton ◽  
Eugene F. Barry
Keyword(s):  
Transition Elements ◽  
Emission Analysis ◽  
X Ray
Sign in / Sign up

Export Citation Format

Share Document