New Method for Measuring the Two Relaxation Times of a Viscoelastic Liquid

1958 ◽  
Vol 28 (6) ◽  
pp. 1264-1264
Author(s):  
Ali Abdel Kerim Ibrahim
Keyword(s):  
Relaxation Times ◽  
Viscoelastic Liquid ◽  
New Method

Viskositäts-und Lösungsmittelabhängigkeit der Fluoreszenzanisotropie und der Lebensdauer von p-Terphenyl

1980 ◽  
Vol 35 (11) ◽  
pp. 1197-1200
Author(s):  
A. Kawski ◽  
Z. Kojro ◽  
M. Alicka
Keyword(s):  
Linear Dependence ◽  
Relaxation Times ◽  
New Method ◽  
Rotational Relaxation ◽  
Rotational Relaxation Times

Abstract The fluorescence anisotropics (FA) r and the lifetimes of p-terphenyl in different solvents have been measured, the effective volumes and the rotational relaxation times being determined. The deviation from the linear dependence of 1/r on 1/η (η-viscosity of the solvent) may explained by the length of the p-terphenyl molecule. The FA measurements were carried out by a method with an Arago compensator, a new method of the automatization of measurements being employed.

New method of measuring relaxation times in semiconductors

1985 ◽  
Vol 46 (8) ◽  
pp. 770-772 ◽  
Author(s):  
P. Mukherjee ◽  
M. Sheik‐Bahaei ◽  
H. S. Kwok
Keyword(s):  
Relaxation Times ◽  
New Method

scholarly journals Exploiting enhanced paramagnetic NMR relaxation for monitoring catalyst preparation using T1–T2 NMR correlation maps

2019 ◽  
Vol 4 (2) ◽  
pp. 268-272 ◽  
Author(s):  
Carmine D'Agostino ◽  
Pierre Bräuer
Keyword(s):  
Relaxation Times ◽  
Supported Catalyst ◽  
Nmr Relaxation ◽  
Catalyst Preparation ◽  
New Method ◽  
Paramagnetic Nmr ◽  
Surface Sites ◽  
Nmr Relaxation Times ◽  
Paramagnetic Ions

A new method to characterise the evolution of surface sites during metal-supported catalyst preparation has been developed, which exploits NMR relaxation times and their sensitivity to paramagnetic ions.

The kinetics of isomeric reactions

1960 ◽  
Vol 257 (1291) ◽  
pp. 541-551 ◽  
Keyword(s):  
Distribution Function ◽  
Rate Constants ◽  
Transition Probabilities ◽  
Relaxation Times ◽  
Careful Consideration ◽  
Time Dependent ◽  
New Method ◽  
Solution Properties ◽  
Reacting Systems ◽  
Kinetics Of

A careful consideration of the kinetics of simple reacting systems near equilibrium shows that the observable relaxation times of the system involve not only transition probabilities (or rate constants) but also the dependence of these quantities on concentrations. By using a new method to describe the kinetics of 2- and 3-state processes (which introduces a time-dependent distribution function for the reaction co-ordinates) it is shown that, under certain conditions, the concentration-dependent terms can be evaluated in terms of the solution properties of the system.

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