Azimkhan
@nrcv.kz
Infectious diseases diagnosis laboratory
National veterinary reference center
18
Scopus Publications
Scopus Publications
- Influence of the dead space volume on the working processes and performance of a piston hybrid power machine with two suction valves
V. E. Shcherba and A. S. Tegzhanov
Springer Science and Business Media LLC - Analysis of Results of Experimental Study of Working Processes of a Positive-Displacement Piston Hybrid Power Machine Having Two Suction Valves with Change of Compressed Gas Discharge Pressure
V. E. Shcherba, A. S. Tegzhanov, E. A. Dorofeev, and G. I. Ekimov
Springer Science and Business Media LLC - Experimental Study of the Influence of the Crankshaft Rotational Speed on the Working Processes of a Piston-Type Positive Displacement Hybrid Power Machine with Two Suction Valves
V. E. Shcherba, A. S. Tegzhanov, I. P. Zaloznov, E. A. Dorofeev, G. I. Ekimov, and K. N. Sokirko
Springer Science and Business Media LLC - Experimental Study of the Characteristics of a Piston-Type Machine with Positive-Displacement Hybrid Power and Two Suction Valves Using Various Coolants
A. S. Tegzhanov, V. E. Shcherba, E. A. Dorofeev, I. P. Zaloznov, G. I. Ekimov, and K. N. Sokirko
Springer Science and Business Media LLC - Development of a Prototype Positive Displacement Piston Hybrid Power Machine with Two Suction Valves and a Facility for Its Testing
V. E. Shcherba, A. Kh.-S. Tegzhanov, and G. I. Ekimov
Springer Science and Business Media LLC - Analysis of Dynamics and Integral Characteristics of a Reciprocating Hybrid Energy Machine with Two Suction Valves When Changing the Rotational Speed of the Crankshaft
V. E. Shcherba and A. S. Tegzhanov
Springer Science and Business Media LLC - Analysis of the Dynamics of Coolant Movement and Working Processes in a Piston Hybrid Positive Displacement Energy Machine with a Gas Dome and Two Suction Valves with Injection Pressure Variation
V. E. Shcherba and A. S. Tegzhanov
Springer Science and Business Media LLC - Mathematical Model of Working Processes of a Positive Displacement Piston Hybrid Power Machine with a Gas Cap and Two Suction Valves
V. E. Shcherba and A.-Kh. S. Tegzhanov
Springer Science and Business Media LLC - Experimental Studies Into a Two-Cylinder Single-Stage Piston Hybrid Power Machine with Liquid Movement Produced by Vacuum on the Suction Side
V. E. Shcherba, G. S. Averyanov, S. A. Korneev, E. Yu. Nosov, A. S. Tegzhanov, and A. Yu. Ovsyannikov
Springer Science and Business Media LLC - Development and research of crosshead-free piston hybrid power machine
Viktor Shcherba, Viktor Shalay, Evgeniy Nosov, Evgeniy Pavlyuchenko, and Ablai-Khan Tegzhanov
MDPI AG
This article considers the development and research of a new design of crosshead-free piston hybrid power machine. After verification of a system of simplifying assumptions based on the fundamental laws of energy, mass, and motion conservation, as well as using the equation of state, mathematical models of the work processes of the compressor section, pump section, and liquid flow in a groove seal have been developed. In accordance with the patent for the invention, a prototype of a crosshead-free piston hybrid power machine (PHPM) was developed; it was equipped with the necessary measuring equipment and a stand for studying the prototype. Using the developed mathematical model, the physical picture of the ongoing work processes in the compressor and pump sections is considered, taking into account their interaction through a groove seal. Using the developed plan, a set of experimental studies was carried out with the main operational parameters of the crosshead-free PHPM: operating processes, temperature of the cylinder–piston group and integral parameters (supply coefficient of the compressor section, volumetric efficiency of the pump section, etc.). As a result of numerical and experimental studies, it was determined that this PHPM design has better cooling of the compressor section (decrease in temperature of the valve plate is from 10 to 15 K; decrease in temperature of intake air is from 6 to 8 K, as well as there is increase in compressor and pump section efficiency up to 5%). - Emergence and spread of novel H5N8, H5N5 and H5N1 clade 2.3.4.4 highly pathogenic avian influenza in 2020
Nicola S. Lewis, Ashley C. Banyard, Elliot Whittard, Talgat Karibayev, Thamer Al Kafagi, Ilya Chvala, Alex Byrne, Saduakassova Meruyert (Akberovna), Jacqueline King, Timm Harder,et al.
Informa UK Limited
ABSTRACT Analyses of HPAI H5 viruses from poultry outbreaks across a wide Eurasian region since July 2020 including the Russian Federation, Republics of Iraq and Kazakhstan, and recent detections in migratory waterfowl in the Netherlands, revealed undetected maintenance of H5N8, likely in galliform poultry since 2017/18 and both H5N5 and H5N1. All viruses belong to A/H5 clade 2.3.4.4b with closely related HA genes. Heterogeneity in Eurasian H5Nx HPAI emerging variants threatens poultry production, food security and veterinary public health. - Calculation of Liquid Piston Kinematic Parameters and Inertial Losses in the Profiled Second-Stage Working Chamber of a Piston Hybrid Energy-Generating Machine
V. E. Shcherba, A. V. Zanin, E. Yu. Nosov, E. A. Pavlyuchenko, and A. S. Tegzhanov
Springer Science and Business Media LLC - Comparative Analysis of Process of Cooling of Compressible Gas in Crosshead and Crossheadless Hybrid Positive-Displacement Piston Power Machines
V. E. Shcherba, A. M. Paramonov, V. N. Blinov, V. I. Surikov, E. Yu. Nosov, and A. S. Tegzhanov
Springer Science and Business Media LLC - Analysis of Liquid-Heating Process in the Course of Compression in the Working Cavity of the Compressor Section of a Hybrid Piston Power Machine
V. E. Shcherba, V. V. Shalai, A. V. Zanin, and A. S. Tegzhanov
Springer Science and Business Media LLC - Utilization of Compressed Gas Heat for Fluid Compression and Movement in a Displacement Pump
V. Е. Shcherba, V. V. Shalai, A. K. Kuzhbanov, I. P. Zaloznov, K. S. Kryukov, and A. S. Tegzhanov
Springer Science and Business Media LLC - Analysis of Results of Theoretical and Experimental Studies of the Influence of Radial Gaps in Stepped Slot Seal of Piston Hybrid Energy-Generating Machine
V. E. Shcherba, V. V. Shalai, A. V. Grigor’ev, A. Yu. Kondyurin, E. A. Lysenko, A. M. Bazhenov, and A. S. Tegzhanov
Springer Science and Business Media LLC - Comparative Analysis of Results of Experimental Studies of Piston Hybrid Energy-Generating Machine with Smooth and Stepped Slot Seals
V. E. Shcherba, V. V. Shalai, E. Yu. Nosov, A. Yu. Kondyurin, G. A. Nesterenko, A. S. Tegzhanov, and A. M. Bazhenov
Springer Science and Business Media LLC - Calculation of Rational Values of Discharge Pressures in the Compressor and Pump Sections of a Crossheadless Reciprocating Hybrid Power Machine
V. E. Shcherba, G. S. Aver’yanov, V. S. Kalekin, S. V. Korneev, and A. S. Tegzhanov
Springer Science and Business Media LLC - The Operation Analysis of a Reciprocating Hybrid Power Machine with a Gas Volume on Suction Using Various Cooling Liquids
V. E. Shcherba, V. V. Shalay, E. Yu. Nosov, A. S. Tegzhanov, Valery. I. Surikov, and A. O. Sigida
IEEE