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This paper reports about magnetic Barkhausen noise emission of the rail surface exposed to long time cyclic plastic deformation. Severe plastic deformation of the rail surface induces remarkable structure transformations and alterations of stress state which contribute to valuable decrease of the Barkhausen noise emission compared to untouched surface of the rail. The paper analyses correlation between...
Abroad there is theoretical and practical conformity between planning and controlling qualitative parameters of ground constructions. In the relevant specifications andregulations are presented objective correlation which allows correct compatibility used control methods and characteristics. The paper presents the relevant correlation dependency of the most used quantification characteristic of quality...
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