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2.998  Articles
1 of 301 pages  |  10  records  |  more records»
The article is devoted to analysis of the errors that occur when acoustic diagnostics of stress state for shaped profiles of metal structures. The analysis of methods for acoustic diagnostics of stressed state of shaped profiles was conducted using mirror... see more

The article is devoted to analysis of the errors that occur when acoustic diagnostics of stress state for shaped profiles of metal structures. The analysis of methods for acoustic diagnostics of stressed state of shaped profiles was conducted using mirror... see more

A universal mathematical model of a noise signal in pipeline systems from the point of its origin to the observation point was presented. Due to the indicator function introduced into it, the model makes it possible to use different types of components an... see more

The paper deals with methods of preliminary analysis of sound signals to extract stable features in classifying the relay used in railway automation systems. The algorithm of the description of a sound signal on the basis of these attributes is offered.

Relevance. The problem of controlling complex technological machines such as machines with mechanisms based on kinematics withparallel structure is given consideration in the article in order to improve accuracy of positioning of actuators, to ensure thei... see more

The present article describes the diagnostics of a compressor that is compressing a mixture of H2 and N2 on the basis of the results that were obtained by operational measurements of the flow rates and temperatures at selected compressor sites, as well as... see more

The subject of study in the article is the acoustic resistance of local areas of the biological tissues in vivo, depending on their pathology. The aim of the work is to develop a quantitative method for measuring the acoustic resistance of local areas of ... see more

ONE OF THE MOST IMPORTANT ASPECTS IN THE OPERATION OF RAIL VEHICLES IS THE IMPLEMENTATION OF TRANSPORT WHILE ENSURING SAFETY AND COMFORT OF PASSENGERS. TECHNICAL CONDITION OF THE WHEEL ROLLING SURFACES HAS A DIRECT IMPACT ON THESE FACTORS. THESE ELEMENTS ... see more

In this work the spatial resolution and measurement accuracy of the ultrasound diagnostic system at acoustic remote palpation (ARP) using high-intensity focusing ultrasound (HIFU) are studied theoretically and experimentally. A physical model is proposed,... see more

1 of 301 pages  |  10  records  |  more records»