В данной научной статье рассматриваются современные типы машинного зрения, которые находят широкое применение в процессе проверки автомобилей на различных этапах их производства и эксплуатации. Машинное зрение представляет собой важный инструмент, позволяющий повысить качество и безопасность автомобилей, а также оптимизировать производственные процессы. В статье обсуждаются ключевые технологии, такие, как световые технологии, которые обеспечивают необходимое освещение для точного анализа изображений, а также обработка изображений, которая позволяет извлекать полезную информацию из визуальных данных.

The purpose of the study is to develop and evaluate the effectiveness of an innovative cargo fastening system using aramid fasteners to improve the safety and stability of cargo transportation. The research methodology included the analysis of existing solutions, the development of conceptual models, mathematical calculations, and the modelling of the system using three-dimensional models. In addition, this study paid special attention to the choice of fastening materials, such as aramid fibre, and analysed the strength characteristics of fasteners to ensure maximum safety of cargo transportation. As a result of the work conducted, an innovative cargo and object fixation system was created, which provides a high level of protection and safety for the cargo, allowing it to avoid damage and emergency situations during transportation. Notably, this system is able to effectively distribute the load and reduce the impact of inertial forces, ensuring stability and reliability during the transportation of goods of various types and sizes. An additional substantial advantage of this innovative solution is its versatility, which allows its successful use in various scenarios and conditions. The technical solution created is suitable for moving both light and heavy loads and can be effectively applied to various types of vehicles. Copyright: © 2025 Nadezhda Dolzhenko, Gulnar Imasheva, Assel Berkesheva, Olga Garmash, and Tasbulat Beketov. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY 4.0) license.

The article presents the results of enrichment of gold-bearing ore from the Aktobe deposit, containing 1.57 g/t of gold, using flotation and gravity–flotation flowsheets with a closed flotation circuit. The expediency of obtaining gold-bearing concentrate by flotation with one cleaner operation is established. The following process indicators are obtained: the yield of the flotation concentrate is 6.13%; the gold content is 23.01 g/t at the recovery of 89.84%. The comparative analysis of the closed-loop flotation circuit results shows that the obtained indicators in both flotation and gravity–flotation flowsheets are approximately at the same level. The highest process indicators in terms of recovery are obtained using the integrated grinding–centrifugal concentration–flotation flowsheet with one cleaner operation. In this case, gold recovery is 90.56%, which is 0.72% higher than the recovery in flotation flowsheet. The studies on gold cyanidation and adsorption at activated carbon grade Gold Curb 207 C demonstrate low gold recovery, both during cyanidation of the original ore (recovery 62.42%) and during cyanidation of the flotation concentrate (recovery 48.53%). To increase the cyanidation efficiency, the methods of concentrate preparation for cyanidation such as pyrometallurgical treatment (roasting) and mechanical activation (ultrafine grinding) are recommended. © 2025, Ore and Metals Publishing house. All rights reserved.

The objective of this study is to develop a methodology for controlling the technological process of rail joint welding at rail welding facilities, ensuring the reliability of welded joints. Based on the data obtained from rail welding enterprises, an improved methodology was developed for assessing the stability of the technological process used in the production of welded rail joints, as well as the overall quality level of welding operations at rail welding facilities (RWFs). It has been established that the continuous increase in train weight and speed imposes strict requirements on the quality of rails in operation. The developed methodology makes it possible to identify a key cause of premature rail failure manufacturing defects, particularly welding defects arising during the production of long welded rails, as well as during the repair and welding of used rails.

The study considered ore enrichment waste from the Ashiktas, Akbakai, and Maikain deposits to create sorbents based on silicophosphates. X-ray phase and electron probe elemental analysis were carried out, which confirmed the presence of silicon, aluminosilicate, and other valuable components suitable for the sorbents synthesis. The optimal synthesis temperature (600°C) contributes to the sorbents' porous structure development and a sorption capacity increase concerning Ni2+ ions, allowing them to be used to purify industrial wastewater from heavy metals, which was proven using zeta potential measurements and SEM images.

Extraction of gold from refractory gold-bearing ores in processing with combined flow charts is higher if more gold is extracted by gravity methods before flotation and hydrometallurgical circuits. The article presents the results of gravity beneficiation of refractory gold-bearing ore from the Aktobe deposit with the cyanidation-recoverable gold content of 46.47%. Assessment of the gravity separation efficiency used the GRG-test which found that 35.93% of gold could be extracted in centrifugal concentration. Two flow charts of gravity concentration of ore in the grinding circuits with jigging and centrifugal concentration were tested. The studies find out that the main amount of Aktobe gold has a size less than 0.1 mm, and it is recommended to recover such gold by combining grinding and centrifugal concentration in the integrated processing circuit. © 2024, Ore and Metals Publishing house. All rights reserved.

This paper presents the development and investigation of an intelligent control system for a high-frequency ozone generator integrated into an IoT-based and telecommunication environment. A cyber-physical nonlinear mathematical model combining the electrical, thermal, gas-dynamic, and chemical subsystems of the ozone generation process is proposed. The model was implemented in discrete-time form and experimentally validated using the corona–discharge-based high-frequency ozonator ETRO-02. The deviation between simulation and experimental results did not exceed 5.3% for settling time, 6.7% for overshoot, 1.6% for steady-state ozone concentration, and 0.9% for gas temperature, confirming the adequacy of the proposed model. Based on this model, a hierarchical two-level intelligent control architecture is synthesized, consisting of a fast local control loop with a cycle time of 1–5 ms and a supervisory monitoring layer. The proposed adaptive state-feedback control law with online gain adjustment ensures stable real-time operation under nonlinear dynamics, ±20% parameter variations, network delays of 1–10 ms, and packet loss probabilities of up to 5%. As a result, the settling time is reduced from 420 ms to 160 ms, the overshoot from 12.5% to 3.1%, and the steady-state error from 6.5% to 1.6%, while the specific energy consumption decreases from 11.8 to 6.2 Wh/m3. The obtained results demonstrate that the integration of a cyber-physical model with a millisecond-level intelligent control system significantly improves the dynamic performance, robustness, and energy efficiency of high-frequency ozone generators compared to classical control and monitoring-oriented IoT systems. Unlike cloud-centric IoT monitoring architectures that operate at second-level update cycles, the proposed system closes the control loop locally at the millisecond scale, enabling stabilization of fast nonlinear electro-plasma dynamics. The results demonstrate that edge-intelligent adaptive control significantly enhances both dynamic performance and energy efficiency, confirming the feasibility of millisecond-level cyber-physical regulation for industrial ozone generation systems.

Abstract. At the enterprises of the mining and metallurgical complex, there is a problem of starting equipment with a heavy rotor. When operating equipment with a large inertial mass, the most unfavorable modes are the starting modes. During the start-up of this type of equipment, there is a multiple excess of loads on the starting de- vices, which leads to a failure of the electric motor, increased operating costs for electricity, etc. This article presents the results of bench tests of a rack-and-pinion starting device, in order to study the influence of the location point of the limit switch and the pressure in the system on the value of the starting current of machines with a heavy rotor. Graphs of the dependence of the inrush current on the installation point of the limit switch on the sliding trajectory at different pressures in the cavity of the bellows cylinder are obtained.

В данной статье рассматривается задача управления скоростью электромеханического привода с упругой связью, используемого в составе гибридного кривошипного пресса с двумя степенями свободы. Такие прессы сочетают в себе кинематическую структуру семизвенного механизма и высокоточные сервоприводы, что позволяет реализовывать адаптивные законы движения ползуна в зависимости от технологических требований и обеспечить формирование оптимального профиля хода. Для описания динамики электромеханической части используется модель с разделённой инерцией, учитывающая упругие свойства связующего вала между приводом и исполнительным звеном механизма. Предложен подход к синтезу регулятора на основе обратной связи по состоянию, позволяющий обеспечить устойчивую и точную реализацию движения даже при изменяющихся нагрузках. Проведены численные моделирования и экспериментальные исследования на лабораторном стенде, подтвердившие эффективность разработанного алгоритма управления. Также проанализировано влияние различных параметров модели на точность и устойчивость системы.Особое внимание уделено компенсации упругих колебаний и устойчивости при параметрических возмущениях. Полученные результаты могут быть полезны при проектировании современных адаптивных систем управления для высокоточных серво-прессов с механической трансмиссией, работающих в условиях переменных технологических нагрузок.

Wire Arc Additive Manufacturing (WAAM) - бұл доғалық дәнекерлеу процесіне негізделген металл аддитивті өндіріс технологиясы, ол сымды электродты балқыту арқылы қабаттап металл бөлшектерді қалыптастыруға мүмкіндік береді. Заманауи зерттеудің басым бөлігі роботталған дәнекерлеу жүйесін пайдаланады. Бұл зерттеуде аз инвестициялы және қарапайым конфигурация негізінде құрастырылған WAAM жүйесін қолданып, цилиндрлік бөлшектерді жасаудың мүмкіндігі зерттелді. Құрылғы ретінде айналмалы үстел мен тік бағыттағы Z-ось қозғалыс модулімен үйлесімі арқылы жүзеге асырылды. Құю процесі GMAW (Gas Metal Arc Welding) әдісімен жасалынды. Сымды электрод ретінде нарықта жиі кездесетін ER70S-6 аз көміртекті болат қолданылды.Және 100% аргон қорғаныш газын пайдалану арқылы жүргізілді. Басылып шыққан цилиндрлік бөлшек кесіліп, ажарлау-жылтыратудан кейін микроскоп арқылы микроқұрылымдық талдау жүргізілді. Микроқұрылымда дәндер ұсақ, изотропты формада таралған, ал қабатаралық шекараларда ақаулар мен тотығу іздері байқалмады. Бұл жылудың біркелкі бөлінгенін және қорғаныш ортаның дұрыс таңдалғанын көрсетті. Алынған нәтижелер қарапайым WAAM жүйесін қолдана отырып, жоғары сапалы металл компоненттерін жасауға болатынын және бұл әдістің шағын өндірістер мен зертханалар үшін қолжетімді шешім бола алатынын дәлелдейді.