- 21. A method for preventing methane explosions when mining gas-saturated coal seams
- (Content №4 2025)
- ... studies in the EXCEL and MATHCAD environment were used. Measurement of the dynamic parameters of the cavitation flow of the liquid (frequency and range of pressure auto-oscillations) was carried out using ...
- Created on 26 August 2025
- 22. Hardware and software for engine fuel supply control under incomplete information conditions
- (Content №3 2025)
- ... time it is proposed to represent the torque diagram of the power unit by a mechanical system with one degree of freedom; the frequency characteristics of the torque transmission channel are studied in ...
- Created on 25 June 2025
- 23. Optimization of electromagnetic radiation by hybrid and electric vehicles
- (Content №3 2025)
- ... of the EMC frequency spectrum, which covers both low frequencies (characteristic of inverters) and high-frequency noise (electric motors). Testing in real operating conditions allows considering the impact ...
- Created on 25 June 2025
- 24. Green technologies in the design of single-storey frameworks
- (Content №3 2025)
- ... of the equipment compartment frame covering, stress-strain state patterns, as well as natural frequency spectra and vibration modes, were obtained. The structural variant of the frame recommended for practical ...
- Created on 25 June 2025
- 25. Influence of the protective potential distribution of a steel underground pipeline on electrochemical corrosion processes
- (Content №2 2025)
- ... by a high-frequency inverter rectifier. Hirnycha elektromekhanika ta avtomatyka: nauk.-tekhn. zb., 91, 37-41. 9. Aziukovskyi, O. (2013). The electrochemical cathodic protection stations of underground ...
- Created on 26 April 2025
- 26. Determination of the harmonic distortion value of vibroacoustic signals in the process of drilling operations
- (Content №2 2025)
- ... methods in that the ratio of the power of the harmonic components to the fundamental frequency signal of the accompanying vibroacoustic signal is calculated. Practical value. This approach makes it possible ...
- Created on 26 April 2025
- 27. Investigation of the stress-strain state of mine shaft support under long-term operation
- (Content №2 2025)
- ... the level number and signal intensity in both frequency ranges (correlation coefficients 0.989 and 0.993), confirmed by statistically significant Student’s t-test results. High-stress zones were identified ...
- Created on 26 April 2025
- 28. Automatic compensation of the mill roll eccentricity in terms of limited speed of hydraulic compression devices
- (Content №1 2025)
- ... Methodology. The research was based on the analytical determination of the frequency characteristics of the AGC system in sheet metal rolling, considering the actual response time of HCD of a rolling ...
- Created on 25 February 2025
- 29. Impact of power electronics devices on leakage current in mine electrical systems: a case study in Vietnam
- (Content №1 2025)
- ... resistance of 1 k, the leakage current value in the AC network with a frequency other than 50 Hz after the inverter (467 mA) is 1.52 times higher than the leakage current value in the AC network with ...
- Created on 25 February 2025
- 30. Static continuous bulk material model for inclined bunker section
- (Content №1 2025)
- ... Science, 1348(1), 012002. https://doi.org/10.1088/1755-1315/1348/1/012002. 21. Liu, R., & Li, D. A. (2024). Study on the impact of low-frequency random loading and unloading on silo structures. Applied ...
- Created on 25 February 2025
- 31. Apparent power place in the instantaneous power of a linear quadripole with a sinusoidal current
- (Content №6 2024)
- ... form. The corresponding vectors are represented graphically on complex planes of zero and doubled frequency. Accordingly, it is indicated which components of the instantaneous power correspond to the apparent ...
- Created on 28 December 2024
- 32. Simulation of the operation modes of the catodic protection complex of pipelines in the approach of overhead power lines
- (Content №6 2024)
- ... were used. Findings. The spatial distribution in the soil of the induced electric field of the overhead power line in the direct location of the pipeline, which varies with a frequency of 50 Hz, was ...
- Created on 28 December 2024
- 33. Active power regulation in wind turbines
- (Content №6 2024)
- ... by employing hybrid controller model. Energy Reports, 10(1), 38-50. https://doi.org/10.1016/j.egyr.2023.06.004. 21. Yuan, H., Wang, D., & Zhou, X. (2023). Frequency support of DFIG-based wind turbine ...
- Created on 28 December 2024
- 34. Assessing the reliability of a surveying and geodetic network based on a Markov model
- (Content №6 2024)
- ... the availability factor, mean time to failure, mean time between failures are calculated. The following graphs are built: readiness functions, probabilities of operation until the first failure, and frequency ...
- Created on 28 December 2024
- 35. Assessment of digital elevation models accuracy for local geoid modeling
- (Content №5 2024)
- ... (2018). Vertical accuracy evaluation of SRTM-GL1, GDEM-V2, AW3D30 and CartoDEM-V3. 1 of 30-m resolution with dual frequency GNSS for lower Tapi Basin India. Geocarto International, 33(11), 1237-1256. https://doi.org/10.1080/10106049.2017.1343392. ...
- Created on 29 October 2024
- 36. Intelligent Sentinel satellite image processing technology for land cover mapping
- (Content №5 2024)
- ... Systems of Information Security (IntelITSIS-2020), Khmelnytskyi, Ukraine June 10-12, 2020. 12. Massout, S., & Smara, Y. (2021). Panchromatic and multispectral image fusion using the spatial frequency ...
- Created on 29 October 2024
- 37. Frequency dependence of reflections on radar landmarks
- (Content №5 2024)
- ... from local objects, with multi-frequency sensing, to solve the problem of orientation by radar reflections from objects. Methodology. Reflections from local objects in the entire frequency range of the ...
- Created on 29 October 2024
- 38. Analysis of natural and man-made factors of landslide development in the Carpathian region using GIS
- (Content №5 2024)
- ... of landslide susceptibility zonation by integrating the frequency ratio and objective–subjective weighting approach: a case study in a tropical monsoon climate region. Frontiers in Environmental Science, ...
- Created on 29 October 2024
- 39. Substantiation of rational design parameters of a crusher with two movable jaws
- (Content №5 2024)
- ... 12. Hristova, T., Yanev, A., & Savov, N. (2018). Determination of the influence of jaw movement frequency of jaw crusher on energy consumption. Annals of the University of Petrosani-Electrical Engineering, ...
- Created on 29 October 2024
- 40. Modeling of drilling tool vibration in the process of drilling blast wells
- (Content №5 2024)
- ... performed to identify the bit in the frequency domain of the measured concomitant integrated vibration signal as a source of high-amplitude vibration. The modulated signal measured in the time domain at ...
- Created on 29 October 2024