scholarly journals Ultrasonic Characterization of Synthetic Soils for Application to Near Surface Geophysics

1999 ◽  
Author(s):  
B. P. Bonner ◽  
P. Berge ◽  
C. Aracne‐Ruddle ◽  
C. Boro ◽  
E. Hardy ◽  
...  
Keyword(s):  
Near Surface ◽  
Ultrasonic Characterization ◽  
Near Surface Geophysics

scholarly journals Ultrasonic Characterization Of Synthetic Soils For Application To Near Surface Geophysics

1999 ◽  
Author(s):  
B.P. Bonner ◽  
P. Berge ◽  
C. Aracne-Ruddle ◽  
C. Bore ◽  
E. Hardy ◽  
...  
Keyword(s):  
Near Surface ◽  
Ultrasonic Characterization ◽  
Near Surface Geophysics

Comparison of Ion-Milling Techniques For Cross-Sectional TEM of Semiconductors

1985 ◽  
Vol 43 ◽  
pp. 166-167
Author(s):  
Julia T. Luck ◽  
C. W. Boggs ◽  
S. J. Pennycook
Keyword(s):  
Analytical Techniques ◽  
Sample Surface ◽  
Ion Milling ◽  
Cross Sectional ◽  
Reliable Technique ◽  
Near Surface ◽  
Transmission Electron ◽  
Thin Region ◽  
Transient Thermal

The use of cross-sectional Transmission Electron Microscopy (TEM) has become invaluable for the characterization of the near-surface regions of semiconductors following ion-implantation and/or transient thermal processing. A fast and reliable technique is required which produces a large thin region while preserving the original sample surface. New analytical techniques, particularly the direct imaging of dopant distributions, also require good thickness uniformity. Two methods of ion milling are commonly used, and are compared below. The older method involves milling with a single gun from each side in turn, whereas a newer method uses two guns to mill from both sides simultaneously.

Ultrasonic characterization of air-saturated double-layered porous media in time domain

2010 ◽  
Vol 108 (1) ◽  
pp. 014909 ◽  
Author(s):  
Z. E. A Fellah ◽  
N. Sebaa ◽  
M. Fellah ◽  
F. G. Mitri ◽  
E. Ogam ◽  
...  
Keyword(s):  
Porous Media ◽  
Time Domain ◽  
Ultrasonic Characterization ◽  
Layered Porous Media

Ultrasonic characterization of abdominal tissues via digital analysis of backscattered waveforms.

Radiology ◽  
1981 ◽  
Vol 141 (3) ◽  
pp. 811-817 ◽  
Author(s):  
F G Sommer ◽  
L F Joynt ◽  
B A Carroll ◽  
A Macovski
Keyword(s):  
Digital Analysis ◽  
Ultrasonic Characterization

Ultrasonic characterization of plastic foams via measurements with static pressure variations

1999 ◽  
Vol 74 (21) ◽  
pp. 3224-3226 ◽  
Author(s):  
Christophe Ayrault ◽  
Alexei Moussatov ◽  
Bernard Castagnède ◽  
Denis Lafarge
Keyword(s):  
Static Pressure ◽  
Plastic Foams ◽  
Ultrasonic Characterization
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