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Mark A. Denisenko, Alina S. Isaeva, Alexander S. Sinyukin and Andrey V. Kovalev
The fast, convenient, and accurate determination of railroad cars? load mass is critical to ensure safety and allow asset counting in railway infrastructure. In this paper, we propose a method for modeling the mechanical deformations that occur in the ra...
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Oleg Kabantsev and Mikhail Kovalev
The article presents experimental tests carried out to investigate the effect of crack width (0.4, 0.8, 1.5, and 3.0 mm) on the behavior of anchor bolts under static and dynamic loading. Ultimate loads for anchors reached 220 kN depending on the anchor t...
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Victor V. Kotlyar, Anton G. Nalimov and Alexey A. Kovalev
We consider sharp focusing of an axial superposition of two optical vortices with identical topological charges, but different amplitudes and circular polarizations of different signs. The ratio of the amplitudes of the two beams is a parameter. When thi...
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Alexey Abdrashitov, Alexander Gavrilov, Evgeny Marfin, Vladimir Panchenko, Andrey Kovalev, Vadim Bolshev and Julia Karaeva
One of the most well-known methods of intensifying the process of anaerobic digestion is the pretreatment of raw materials. For the first time, the use of a jet-driven Helmholtz oscillator for biomass pretreatment is proposed. The design of the device is...
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Md Amir Suhail, Sandeep Shrivastava, Kunwar Paritosh, Nidhi Pareek, Andrey A. Kovalev, Dmitriy A. Kovalev, Yuri V. Litti, Vladimir Panchenko, Vadim Bolshev and Vivekanand Vivekanand
Concrete is mainly employed as a construction material. Due to the manufacturing of cement and the extent of concrete usage, numerous environmental issues and water suction have presented challenges. There is an immediate need to overcome these problemat...
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Oleg Kabantsev and Mikhail Kovalev
The article addresses mechanisms of anchorage failure in a concrete base studied within the framework of physical experiments. The authors investigated the most frequently used types of anchors, such as the cast-in-place and post-installed ones. The anch...
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Nikita Stsepuro, Pavel Nosov, Maxim Galkin, George Krasin, Michael Kovalev and Sergey Kudryashov
This paper investigated the diffraction of a Gaussian laser beam on a binary mask and a refractive axicon. The principles of the formation of a zero-order Bessel beam with sharp drops of the axial field intensity edges were discussed. A laser optical sys...
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Dmitry Wainstein, Anatoly Kovalev, Vladimir Vakhrushev, Raul Gago and Jose L. Endrino
Multilayer nanolaminate TiAlN/Ag and Al2O3/Ag metal-insulator-metal (MIM) coatings with thicknesses of individual layers from a few to several hundreds of nanometers were fabricated by direct current magnetron sputtering. Their optical transmittance and ...
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Dmitry Wainstein and Anatoly Kovalev
This paper generalizes the results of our research, which was aimed at the development of adaptive cutting tool coatings for high speed dry cutting, from the inception of the idea to complex multilayer coatings for processing tough metals. Typically, the...
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Igor Blyankinshtein, Sergei Boyarkin, Valery Kovalev
Pág. 60 - 67
Testing methods for vehicles for static lateral stability are considered. The objects of research are vehicles (trucks and specialized vehicles) that are in operation and have undergone the amendment process. The subject of research is the motor vehicle ...
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