An Improvement of the Perturbation Ray Tracing Algorithm for Ultrasonic Computerized Tomography on Concretes

2014 ◽  
Vol 11 (17) ◽  
pp. 6107-6117
Author(s):  
Yao Fan
Author(s):  
Wang Jun-Feng ◽  
Ding Gang-Yi ◽  
Wang Yi-Ou ◽  
Li Yu-Gang ◽  
Zhang Fu-Quan

2014 ◽  
Author(s):  
Guojin Feng ◽  
Ping Li ◽  
Yingwei He ◽  
Yu Wang ◽  
Houping Wu

1993 ◽  
Vol 38 (2-4) ◽  
pp. 207-221 ◽  
Author(s):  
Hilmar Lehnert

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