Contents

Russian Journal of Nondestructive Testing

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Vol. 57, No. 3, 2021

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Acoustic Methods

Analyzing Ultrasonic Signal Parameters during High-Speed Rail Inspection

A. A. Markov and E. A. Maximova p. 181  abstract

Indirect Evaluation of the Compressive Strength of Recycled Aggregate Concrete at Long Ages and after Exposure to Freezing or Elevated Temperatures

Mohammed A. Abed p. 195  abstract

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Electromagnetic Methods

Automated System for Complex Non-Destructive Testing of the Structure and Mechanical Properties of Mechanical Engineering Materials

Boris Georgiev Velev, Ivan Stoyanov Ivanov and Vladimir Vasilev Kamenov p. 203  abstract

Effect of Grinding Environments on Magnetic Response of AISI D2 Tool Steel

Ashwani Sharma, Abhimanyu Chaudhari, Akash Subhash Awale, Mohd Zaheer Khan Yusufzai and Meghanshu Vashista p. 212  abstract

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X-Ray Methods

Calculation Model of X-Ray Computed Tomography with Density Assessment Function

S. P. Osipov, I. G. Yadrenkin, S. V. Chakhlov, O. S. Osipov, E. Yu. Usachev and A. A. Manushkin p. 222  abstract

Algorithms for Modeling the Formation and Processing of Information in X-Ray Tomography of Foam Materials

S. P. Osipov, I. A. Prischepa, S. V. Chakhlov, O. S. Osipov and E. Yu. Usachev p. 238  abstract

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