1. Structure Analysis of Products Made of Polymer Materials Using Instantaneous Spectra of Ultrasonic Signals

   • V. K. Kachanov
   • I. V. Sokolov
   • D. V. Timofeev

   ACOUSTIC METHODS 02 September 2019 Pages: 427 - 433

   

2. Nondestructive Testing of Structurally Inhomogeneous Composite Materials by the Method of Elastic-Wave Velocity Hodograph

   • A. I. Potapov
   • A. V. Kondrat’ev
   • Ya. G. Smorodinskii

   ACOUSTIC METHODS 02 September 2019 Pages: 434 - 442

   

3. Using “Focusing to a Point” Algorithm for Reference-Free Measurement of the Speed of Ultrasound in Tomography of Concrete Engineering Structures

   • V. K. Kachanov
   • I. V. Sokolov
   • D. V. Timofeev

   ACOUSTIC METHODS 02 September 2019 Pages: 443 - 452

   

4. Inverse Problems of Ultrasonic Tomography in Nondestructive Testing: Mathematical Methods and Experiment

   • E. G. Bazulin
   • A. V. Goncharsky
   • S. Yu. Seryozhnikov

   ACOUSTIC METHODS 02 September 2019 Pages: 453 - 462

   

5. Reference-Free Method for Thickness Gaging of a Test Object and Measuring the Speed of Longitudinal and Transverse Waves in It Based on Echo Signals Picked by an Antenna Array

   • E. G. Bazulin
   • A. Kh. Vopilkin

   ACOUSTIC METHODS 02 September 2019 Pages: 463 - 475

   

6. Design of a Portable Frame Integrality Testing System Based on SOPC

   • Zhiyi Han
   • Xin Zhao
   • Lu Yang

   ACOUSTIC METHODS 02 September 2019 Pages: 476 - 480

   

7. Computer Aided Radiograph Interpretation Tool for Defect Characterization from Weld Plates

   • K. Sudheera
   • N. M. Nandhitha

   RADIATION METHODS 02 September 2019 Pages: 481 - 488