- 1. Identification and suppression of signals of the rear lobe of the radiation pattern of the radar antenna
- (Content №3 2024)
- ... formed by the rear lobe of the antenna pattern without distorting the reflections created by the main lobe. For this purpose, a criterion has been developed, determined by the ratio of the amplitude of ...
- Created on 28 June 2024
- 2. Drilling wells taking into account the dynamic properties of rocks
- (Content №2 2024)
- ... analysis of the amplitudes and power spectral density of mud pressure oscillations of the mud and vibration accelerations in the drill bit cross section of drill string. Findings. The results are presented ...
- Created on 01 May 2024
- 3. Influence of relaxation on filtering microflows under harmonic action on the layer
- (Content №2 2024)
- ... on it and assessment of the influence of relaxation effects on the attenuation of the amplitude of initial disturbances within the framework of mathematical modeling of non-equilibrium plane-radial filtration. ...
- Created on 01 May 2024
- 4. Accounting for a positive, negative and zero sequences power in a three-phase unbalanced electrical system
- (Content №6 2023)
- ... power components are analytically determined, including the amplitudes of the oscillating power components. The need to take into account the oscillating instantaneous power components has been proven ...
- Created on 23 December 2023
- 5. Use of backscattering ultrasound parameters for iron ore varieties recognition
- (Content №6 2023)
- ... of the received echo signals and quantifying their parameters. The amplitude of the echo signal and its spectral properties depends on the size and concentration of the scatterers, i.e., the structural ...
- Created on 23 December 2023
- 6. Smart contracts and business process automation: the technical aspect
- (Content №5 2023)
- ... of the amplitude-frequency response of a vibrating rotary crusher in the software Mathcad. Przeglad Elektrotechniczny, 98(9), 14-20. https://doi.org/10.15199/48.2022.09.03. 5. Trachova, D., Belova, I., ...
- Created on 27 October 2023
- 7. Using nonlinear ultrasonic measurements to estimate parameters of the sedimentation of slurry solid phase in thickener
- (Content №2 2023)
- ... of the process of propagation of ultrasonic waves in ore slurry, which is determined by the number and size of crushed ore particles in it, can be estimated by determining the amplitudes of several harmonics ...
- Created on 28 April 2023
- 8. Minimization of dynamic changes in the tension of long products behind the outlet cage in rolling stock production in coils
- (Content №6 2022)
- ... Purpose. Justification of technical solutions as to the reduction of the amplitude and reduction of the dynamic change duration in the tension of the rolling stock at the exit of the output cage when moving ...
- Created on 25 December 2022
- 9. Variation coefficient of torsional vibrations of the connection nodes of vibrating machines
- (Content №6 2021)
- ... strength and accuracy. To develop a method for selecting the design parameters of the elastic band element of the package, taking into account the specified values of the amplitude and frequency characteristics ...
- Created on 29 December 2021
- 10. Definition of rational operating modes of a vibratory jaw crusher
- (Content №4 2021)
- ... plates must ensure crushing of material. Graphs of the effect of the vibrating elements and elasticity coefficients of elastic systems on the amplitudes of vibrations are plotted and analyzed. On the basis ...
- Created on 23 August 2021
- 11. Rigidity effect of the mine geophone mounting on its frequency response
- (Content №3 2021)
- ... increase in rigidity can result in both increase and decrease in the amplitude of frequency components in a fixed frequency range. The calculations are performed for the parameters characteristic of the ...
- Created on 23 June 2021
- 12. Influence of pulse excitation on electromechanical indicators of a linear pulse converter of electrodynamic type
- (Contens №3 2020)
- ... CES. With a decrease in this voltage and with conservation of the energy of the CES, the amplitude of the EDF decreases by 31.5 %, but due to the delay of electromagnetic processes, the pulse of the EDF ...
- Created on 02 July 2020
- 13. Prediction of transient processes in oil pipelines with the purpose of emergency incident prevention
- (Content №1 2020)
- ... which makes it possible to establish the amplitude-frequency characteristics of the transient process. Originality. For the first time, it is proposed to use a piecewise linear approximation ...
- Created on 10 March 2020
- 14. Innovative technique for evaluating electric power distortion in cable transmission line
- (Content №1 2020)
- ... the conditions of conducted numerical experiments, the indices of the share of pseudo-canonical and non-canonical components differ significantly depending on the distribution of the amplitudes of current ...
- Created on 10 March 2020
- 15. Active single-phase four-quadrant rectifier with improved hysteresis modulation algorithm
- (Electrical Complexes and Systems)
- ... is observed, namely, the decrease in the amplitudes of the higher harmonics of the input current and the reduction of the resulting harmonic distortion coefficient. Originality. It is established ...
- Created on 26 October 2019
- 16. Impact of flexibility of support on gear mesh dynamics
- (Geotechnical and Mining Mechanical Engineering, Machine Building)
- ... support is developed. The amplitude-frequency response of open gearing of a tumbling mill MSHRGU 4500 × 6000 is studies taking into account flexibility of a pinion shaft and bearing parts. It is shown ...
- Created on 19 August 2019
- 17. Limitation of oscillations of vibrating machines during start-up and shutdown
- (Geotechnical and mining mechanical engineering, machine building)
- ... nature. The amplitude-frequency response and coefficients have been obtained, which characterize the dynamic load transmission to the fixed support structures for various viscous resistance forces determined ...
- Created on 03 March 2019
- 18. Start dynamics of vibrating machines with unbalanced drive considering its elasticity
- (Geotechnical and mining mechanical engineering, machine building)
- ... allow choosing options of vibration machines with unbalanced drive in a more reasonable way, which will reduce the amplitude of its start vibrations, dynamic loads and energy losses. References. 1. Blekhman, ...
- Created on 03 July 2018
- 19. Investigation of stress-strain state of packet node connection in spatial vibration shakers
- (Geotechnical and mining mechanical engineering, machine building)
- ... of the amplitude and frequency characteristics of strains reproduced by the stand. Originality. For the first time, a technique is proposed for calculating structural parameters (thickness, length, ...
- Created on 03 July 2018
- 20. Effect of harmonic oscillations on a crack initiation in the rock mass
- (Mining)
- ... forecast of gas-dynamic phenomena by the amplitude-frequency characteristics of oscillations. For this purpose, we defined ranges of harmonic oscillation frequencies in some rocks (fine-grained sandstone, ...
- Created on 06 September 2017