Dynamic effective thermal properties of ceramics–metal functionally graded fibrous composites

2007 ◽  
Vol 464 (1-2) ◽  
pp. 16-23 ◽  
Author(s):  
C. Hu ◽  
X.-Q. Fang
Keyword(s):  
Thermal Properties ◽  
Functionally Graded ◽  
Fibrous Composites ◽  
Effective Thermal Properties

A Self-Heated Thermistor Technique to Measure Effective Thermal Properties From the Tissue Surface

1987 ◽  
Vol 109 (4) ◽  
pp. 330-335 ◽  
Author(s):  
P. A. Patel ◽  
J. W. Valvano ◽  
J. A. Pearce ◽  
S. A. Prahl ◽  
C. R. Denham
Keyword(s):  
Heat Transfer ◽  
Thermal Conductivity ◽  
Thermal Properties ◽  
Tissue Blood Flow ◽  
Conductivity Measurements ◽  
Bioheat Equation ◽  
Tissue Conductivity ◽  
Diffusivity Measurements ◽  
Tissue Surface ◽  
Effective Thermal Properties

A microcomputer based instrument to measure effective thermal conductivity and diffusivity at the surface of a tissue has been developed. Self-heated spherical thermistors, partially embedded in an insulator, are used to simultaneously heat tissue and measure the resulting temperature rise. The temperature increase of the thermistor for a given applied power is a function of the combined thermal properties of the insulator, the thermistor, and the tissue. Once the probe is calibrated, the instrument accurately measures the thermal properties of tissue. Conductivity measurements are accurate to 2 percent and diffusivity measurements are accurate to 4 percent. A simplified bioheat equation is used which assumes the effective tissue thermal conductivity is a linear function of perfusion. Since tissue blood flow strongly affects heat transfer, the surface thermistor probe is quite sensitive to perfusion.

Effective thermal properties of an isotactic polypropylene (α-iPP) injection moulded part by a multiscale approach

2017 ◽  
Vol 48 (12) ◽  
pp. 1213-1219 ◽  
Author(s):  
G. Laschet ◽  
M. Apel ◽  
J. Wipperfürth ◽  
C. Hopmann ◽  
M. Spekowius ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Isotactic Polypropylene ◽  
Multiscale Approach ◽  
Effective Thermal Properties
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