Instrumental peak distortion. I. Relaxation time effects

1969 ◽  
Vol 41 (13) ◽  
pp. 1755-1762 ◽  
Author(s):  
Ian G. McWilliam ◽  
H. C. Bolton
Keyword(s):  
Relaxation Time ◽  
Time Effects

scholarly journals Relaxation time effects on dynamic conductivity of alloyed metallic thin films in the infrared band

2008 ◽  
Vol 104 (10) ◽  
pp. 103514 ◽  
Author(s):  
D. J. Shelton ◽  
T. Sun ◽  
J. C. Ginn ◽  
K. R. Coffey ◽  
G. D. Boreman
Keyword(s):  
Thin Films ◽  
Relaxation Time ◽  
Metallic Thin Films ◽  
Infrared Band ◽  
Time Effects ◽  
Dynamic Conductivity

Time effects in the magnetic cooling method. II

1947 ◽  
Vol 43 (1) ◽  
pp. 118-122 ◽  
Author(s):  
H. N. V. Temperley
Keyword(s):  
Relaxation Time ◽  
Liquid Helium ◽  
Excellent Agreement ◽  
Magnetic Interaction ◽  
Present Form ◽  
Zero Field ◽  
Time Effects ◽  
Relaxation Effects ◽  
Magnetic Cooling ◽  
Cooling Method

Some data obtained at Leiden on relaxation effects in a diluted potassium chrome alum are discussed in the light of a paper by Temperley (10), and excellent agreement is found with the conclusions of that paper. The primary effect of diluting the salt is to reduce the magnetic interaction, and the observed effects are a big increase in the relaxation time in zero field, and a decrease of the relaxation time with increasing field instead of an increase. It is predicted that a decrease should set in with an ordinary salt at liquid helium temperatures at fields somewhat higher than have so far been used. Van Vleck's criticisms of Temperley's paper are discussed, and it is concluded that they are not valid in their present form.

scholarly journals Fluid–Structure Interaction and Non-Fourier Effects in Coupled Electro-Thermo-Mechanical Models for Cardiac Ablation

Fluids ◽  
2021 ◽  
Vol 6 (8) ◽  
pp. 294
Author(s):  
Sundeep Singh ◽  
Roderick Melnik
Keyword(s):  
Relaxation Time ◽  
Temperature Distribution ◽  
Treatment Outcomes ◽  
Cardiac Tissue ◽  
Fluid Structure Interaction ◽  
Thermal Relaxation ◽  
Cardiac Ablation ◽  
Time Effects ◽  
Structure Interaction ◽  
Electrode Insertion

In this study, a fully coupled electro-thermo-mechanical model of radiofrequency (RF)-assisted cardiac ablation has been developed, incorporating fluid–structure interaction, thermal relaxation time effects and porous media approach. A non-Fourier based bio-heat transfer model has been used for predicting the temperature distribution and ablation zone during the cardiac ablation. The blood has been modeled as a Newtonian fluid and the velocity fields are obtained utilizing the Navier–Stokes equations. The thermal stresses induced due to the heating of the cardiac tissue have also been accounted. Parametric studies have been conducted to investigate the effect of cardiac tissue porosity, thermal relaxation time effects, electrode insertion depths and orientations on the treatment outcomes of the cardiac ablation. The results are presented in terms of predicted temperature distributions and ablation volumes for different cases of interest utilizing a finite element based COMSOL Multiphysics software. It has been found that electrode insertion depth and orientation has a significant effect on the treatment outcomes of cardiac ablation. Further, porosity of cardiac tissue also plays an important role in the prediction of temperature distribution and ablation volume during RF-assisted cardiac ablation. Moreover, thermal relaxation times only affect the treatment outcomes for shorter treatment times of less than 30 s.

scholarly journals Relaxation time effects of wave ripples on tidal beaches

2007 ◽  
Vol 34 (16) ◽  
Author(s):  
M. J. Austin ◽  
G. Masselink ◽  
T. J. O'Hare ◽  
P. E. Russell
Keyword(s):  
Relaxation Time ◽  
Time Effects
Sign in / Sign up

Export Citation Format

Share Document