Fiber-Optic System for Monitoring Pit Collapse Prevention

Autor: Yelena Neshina, Ali Mekhtiyev, Valeriy Kalytka, Nurbol Kaliaskarov, Olga Galtseva, Ilyas Kazambayev

Publikováno v: Applied Sciences, Vol 14, Iss 11, p 4678 (2024)

Currently, there are many enterprises involved in extracting and processing of primary raw materials. The danger of working in this industry consists in the formation of cracks in rocks of the pit side slopes, which can lead to destruction. This arti

Externí odkaz: https://doaj.org/article/070e35aa7bc74d5abaec31a6d05f1c4b

Аналіз втрат потужності у багаторівневих ШІМ-інверторах

Autor: Symbat Manat, Vyacheslav Yugay, Nurbol Kaliaskarov

Publikováno v: Eastern-European Journal of Enterprise Technologies; Vol. 2 No. 5 (116) (2022): Applied physics; 31-42
Eastern-European Journal of Enterprise Technologies; Том 2 № 5 (116) (2022): Прикладна фізика; 31-42

The paper describes the types of multilevel pulse-width modulation, as well as methods for obtaining control signals for the inverter power switches for each of the types. The dependence of the harmonic composition of the output voltage of the invert

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff0d18e1ed9fa6444969d55b7a61d9a7
http://journals.uran.ua/eejet/article/view/252771

Gas Dynamic Properties of Low Voltage Partial Discharges

Autor: A. D. Mekhtiyev, Nurbol Kaliaskarov, Evgeny Yakovlev, Leonid Zinovyev, Vyacheslav Yugay

Publikováno v: 2020 7th International Congress on Energy Fluxes and Radiation Effects (EFRE).

Research results on gas dynamics at low voltage pulse partial discharge are covered. When the discharge current is limited by the ballast resistance in the free volume, a “turbulized gas ball” is formed, which gradually cools down and disappears

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e8336ce0a267d349a36567a68895364b
https://doi.org/10.1109/efre47760.2020.9242179