The article provides the basic foundations of the implementation of sustainable development approaches in the world society and their interpretation in mining activities. The study also analyzes the regulatory framework and organizational mechanisms for the implementation of these principles in the Ukrainian mining industry. An analysis of the current state of rational subsoil use and solid industrial waste management in Ukraine is given. The concept of a mining cluster and prospects for its formation in the region of the Kryvyi Rih iron ore basin are substantiated. An algorithm designed to optimize the schedule of mining operations in the mining cluster is described. The Ingulets iron ore deposit was analyzed from the standpoint of integrated development. The reserves of talc shale extracted from the open-pit and stored in a man-made deposit for further sale are separately allocated. The order of mining works for the development of man-made deposits is given. © Published under licence by IOP Publishing Ltd.

The problem of preservation, and optimal demonstration of it to local residents and tourists of architectural monuments, is of constant scientific and public interest. Two concepts coexist in dialectical interaction: conservation to preserve the monument in the form in which it has come down to in our times, and restoration of the monument with the restoration of lost details. In each case, one or another decision is made, which finds both supporters and opponents. One of the aspects of this problem is the attitude to buildings that have long breaks in the history of conduct in their construction works. An interesting example of such a monument is the mausoleum-khanaka of Ahmed Yassawi in Turkestan, which remains unfinished. Given its importance for the self-determination of the culture of modern Kazakhstan, it seems appropriate to consider the planned design, which remains unrealized. For the first time, the article suggests, by way of discussion, several options proposed by the authors for solving the main facade of the mausoleum-khanaka and the shape of the central dome. © 2023 by the authors.

Stakeholder engagement in the dual education system is one of the key factors in developing a sustainable educational system. In this study, the authors aim to explore the role and responsibilities of the key stakeholders and the level of their engagement in the dual education system. The authors aim to contribute to stakeholder engagement in dual education by identifying, assessing, and prioritizing project stakeholders’ interests and influence on the education system. The paper used a case study approach and conducted semi-structured interviews with representatives of vocational schools in Kazakhstan. The case study was conducted by comparing the results of the project stakeholder analysis in the dual education systems of Germany and the United States to Kazakhstan. The semi-structured interviews were conducted with 15 experienced educators from different vocational schools in Kazakhstan. The author's analysis reveals that significant changes are necessary to the legislation in Kazakhstan to improve the dual education system. © 2023, Penerbit UTHM. All rights reserved.

When carrying out geological exploration work, one of the primary tasks is energy supply. The energy supply system consists of many elements that ensure the production, transportation and conversion of energy. The specificity of geological exploration works is distinguished by its complexity associated with remoteness from the main energy systems, severe climatic conditions, and geolocation variability. In such conditions, the task of using alternative energy sources becomes relevant. One option is to use wind turbines. The development of wind turbines for geological exploration facilities is based on chaotic engineering solutions, which confirms the fact that there is no science-based methodology for the development of modern wind turbines. The article reveals the methodological foundations for the application of wind turbines in geological research. The specifics of geological exploration work are such that even a slight interruption in the power supply leads to downtime of the main technological equipment. Based on this, when developing large mineral deposits, it is advisable to use combined energy supply systems, including both traditional sources of energy supply and alternative sources as backup power supply systems. In the paper, based on the analysis of existing systems of alternative energy supply, a certain methodology has been developed that allows the most efficient and reasonable selection of one or another version of wind turbines. © National Academy of Sciences of the Republic of Kazakhstan, 2022.

During a polymer flood, the field operator must be convinced that significant chemical investment is not compromised at the early stages of polymer injection. Further, dissolved oxygen in the viscous polymer solution must be controlled at a safe level, where viscosity loss will be insignificant. Under anaerobic conditions, the hydrolyzed polyacrylamide (HPAM) solution is stable even if iron ions are present in the process water. Thus, in the field operation, introduced oxygen and existing iron ions will cause an enormous viscosity decline. The geochemical calculation reveals that dissolved oxygen can rapidly deplete after entering Kalamkas formation. This paper confirms this prediction through a combination of laboratory measurements and field observations. This study is based on rheology measurements of polymer solutions and produced fluid from the offset production well associated with the Kalamkas oilfield in Western Kazakhstan. Comprehensive analysis confirms no viscosity loss at the surface facilities during polymer preparation and injection at a Polymer Slicing Unit and significant viscosity loss at an Eductor-type unit caused by oxygen introduced during polymer solution preparation. However, even introduced high dissolved oxygen levels that degrade polymer at the surface can be rapidly depleted during contact with the formation, thereby promoting polymer chemical stability in the reservoir. © 2022 The Authors.

This paper explores the influence of the angle of attack on the aerodynamic characteristics of the blade profile. The paper presents calculations, modeling and graphical representation of the blade shape during rotation around the axis. Using the given parameters, such as the length of the blade, the radius of the upper and lower boundaries, as well as the angle of inclination of the blade, the calculation of the coordinates of the points of the blade profile for various angles of rotation is given. The cross-sectional area, volume and mass of the blade were also calculated. Appropriate calculations were made to approximate the center of mass of the blade. To evaluate the influence of the angle of attack on the blade profile, the angles of attack were calculated for various angles of rotation. © The Authors, published by EDP Sciences, 2023.

Urban environments worldwide face toxic heavy metal pollution originating from industrial discharge, municipal waste disposal, vehicular emissions, and atmospheric deposition. Kazakhstan, experiencing accelerated economic growth and extensive mining activities, contends with widespread heavy metal contamination in its soil-plant-air-water ecosystems. This study explores the potential of hyperaccumulating plants for phytoremediation in urban soils of Kazakhstan contaminated with Pb, Cd, and Co. Twelve plant species, including Korean Mint (Lamiaceae), Ornamental Cabbage (Brassica oleracea), Ageratum (Ageratum houstonianum), Coneflower (Echinacea purpurea), Amaranth (Amaranthus Perfect and Amaranthus Emerald), Fescue (Festuca glauca), Burning Bush (Kochia scoparia), Marigold (Tagetes patula nana), White Cabbage (Brassica-Cavolo cappuccino BIANKO), Tepary Bean (Phaseolus acutifolius), and Rapeseed (Brassica napus), were evaluated for growth and biomass production in urban soils spiked with two maximum permissible addition (MPA) treatments of Pb, Co, and Cd. The selected plants demonstrated varied responses to heavy metal stress, with Marigold (8.4 g shoot biomass/plant), Korean mint (10.5 g shoot biomass/plant), Rapeseed (19.9 g/shoot biomass), and Tepary bean (25.9 g shoot biomass/plant) exhibiting resilience or tolerance to Pb, Co, and Cd stresses. The results highlight the significant potential of these plants for efficient phytoremediation, showcasing their unique abilities to absorb and accumulate specific metals. Marigold, particularly, displayed noteworthy Pb accumulation (40.3 mg/kg biomass), resulting in reduced residual Pb concentrations in the soil (74.7 mg/kg). Conversely, White cabbage and Amaranth showed limited efficiency in Cd extraction, while Rapeseed and Tepary bean emerged as promising candidates for Cd phytoremediation. This study emphasizes the critical role of tailored plant species selection in designing effective phytoremediation strategies for specific metal-contaminated urban sites. A comprehensive understanding of the dynamics of metal accumulation and residual concentrations is crucial for the development of sustainable and efficient environmental remediation approaches. Further research is warranted to explore the long-term effects of different plant species on soil metal concentrations, refining and optimizing phytoremediation methods for urban soils grappling with toxic heavy metal contamination. © 2024 Federation of Eurasian Soil Science Societies.

Over the last three decades, there has been a notable transformation in urban growth patterns in Kazakhstan’s large cities, particularly in Almaty. While this can be traced back to market-oriented planning agendas, the increasing fragmentation of the public realm in cities can be linked to the recent residential development projects. The rise of these projects in post-Soviet neighbourhoods is often criticised due to their typology, as developers create them as gated communities. These patterns’ socio and spatial fragmentation is associated with fewer opportunities for social interaction between Soviet neighbourhoods and the more recent exclusive communities. Therefore, this paper investigates the key issues present in the urban patterns of Almaty city that can hinder the creation of a more cohesive society. It presents a case study of other Soviet-developed neighbourhoods with similar development patterns. The study’s methodology includes morphological mapping, observation of the use of the public realm and a survey of residents to support the findings. The investigation focuses on one of the typical urban patterns of mixed-use Soviet neighbourhoods and recent urban residential blocks, where an opportunity lies for perspective communities. The research reveals a lack of social cohesion between local communities due to mono-functional land use, poor permeability and accessibility that fragmented the city into closed neighbourhoods. The research dives into the core issues of Soviet and post-Soviet urban morphology’s outcomes in the public realm and the impact on social life in these neighbourhoods. © Universiti Putra Malaysia Press.

This study aims to obtain CoZn nanostructures using the electrochemical deposition method and to estimate the applicability of the resulting nanostructures as anode materials for lithium-ion batteries. Scanning electron microscopy, energy dispersive and X-ray phase analysis were used as the main methods for characterizing the obtained nanostructures. A study of the morphological properties of the synthesized nanostructures revealed that the variation of the synthesis conditions results in the formation of structures with different degrees of structural ordering and morphology. During the evaluation of the phase composition of the synthesized CoZn nanostructures with variation in the applied potential differences, the phase transformations’ dynamics were established, which can be written as follows: X-ray amorphous structures → Zn/CoO2 → Co2Zn11/Co/CoO2 → Co2Zn11/ZnO. Using the methods of phase analysis and mapping, an isotropic distribution of phases in the composition of nanostructures was established. In such a case, the formation of the Co2Zn11 phase occurs with an elevation in the concentration of cobalt from 8.9 to 29.3–31.1 at. % leads to the partial substitution of zinc ions by cobalt ions, followed by the formation of a cubic phase. The study of the morphological properties of the synthesized CoZn nanostructures afterlife tests showed differences in the degradation processes of nanowires triggered by the phase composition alteration. © 2023 by the authors.

In sequential pumping, several liquids with different physical and chemical properties are pumped through one pipeline. The advantages of this method include: using one pipeline to transport different liquids; more complete pipeline loading; and reduced cost of pumping. The paper considers the sequential pumping of two batches of oil blends with different physicochemical properties through an industrial oil pipeline. This is because a batch of high-paraffin oil blend is simultaneously pumped to an oil refinery, and a batch of high-viscosity oil blend is transported further along a pipeline. The difference between the thermal-physical and rheological properties of oil batches imposes a condition on the thermal mode of operation of an industrial pipeline. A mathematical model and algorithm have been created for calculating the sequential transportation of high-paraffin and high-viscosity oil blends. Thermohydraulic calculations of the model show the distribution of hydraulic head, pressure, and temperature of the batches under the operating conditions of pumping units and heating furnaces. The verification and validation of the theoretical analysis was carried out with experimental data measured by the SCADA along the industrial pipeline length. By the thermal mode of sequential pumping, optimal heating temperatures of oil blends were found at the industrial pipeline stations.