The services and applications provided by video streaming over Vehicular Ad-hoc Networks (VANETs) have recently become very attractive to technology users. In VANETs, the moving vehicles on the roads take great advantage of this radio link by exchanging information with each other related to the safety, traffic jams, accidents, and condition of the roads via video streaming. On the other hand, this transmission domain poses many challenging issues like frequent disconnections due to fast-speed vehicles, longer transmission delays, and inefficient link consumption etc. numbers of routing strategies have been proposed in the literature that aimed to address these challenges of an Intelligent Transportation System (ITS). This article is based on a Location-Based Hybrid Video Streaming Protocol (LBHVSP) that has been proposed with the intent to minimize the challenges related to video transmission as well as the attainment of high network performance. The idea presented is a motivation from the dynamic nature of transceiver and receiver transmission power, accompanied by the range-based localization techniques for inter-space computation of vehicular nodes. LBHVSP is a 2-way protocol that works as a combination of infrastructure-based and infrastructure-less wireless networks that tends to minimize the average packet delay for efficient utilization of bandwidth. It is a two-phase solution, firstly frames are transmitted to the second hop node available in the direct range that minimizes the traveling path in terms of hop count and ultimately yields minimal delay. Secondly, this technique utilizes the Road Side Units (RSUs) having wired connectivity for a faraway destination. Experimental results using different transmission scenarios reveal its efficacy by attaining maximum average packet throughput, minimum average packet drop rate, and minimum average per-packet delay in Signal Transmission Power and Packet Reception Power Threshold values. The proposed scheme has outperformed the state-of-the-art transmission scenarios in terms of static parameters. Varying transmission and reception powers subject to the inter-distance have shown remarkable outcomes. In comparison to pre-existing VANET protocols like DyTE and DSR, proposed scheme has shown an average improvement of 30% in packet drop rate, and 80% rise in throughput, approximately. Besides, our scheme has shown a remarkable decline in transmission delay as well. On comparing the LBHVSP performance against recent VANET communication protocol, it comes out that it attains the maximum throughput and delay improvement. Furthermore, to cater the packet drop, a smart re-transmission strategy should be designed particularly for multimedia streaming and video message exchange. © The Author(s) 2024.

Global warming-induced melting and thawing of the cryosphere are severely altering the volume and timing of water supplied from High Mountain Asia, adversely affecting downstream food and energy systems that are relied on by billions of people. The construction of more reservoirs designed to regulate streamflow and produce hydropower is a critical part of strategies for adapting to these changes. However, these projects are vulnerable to a complex set of interacting processes that are destabilizing landscapes throughout the region. Ranging in severity and the pace of change, these processes include glacial retreat and detachments, permafrost thaw and associated landslides, rock–ice avalanches, debris flows and outburst floods from glacial lakes and landslide-dammed lakes. The result is large amounts of sediment being mobilized that can fill up reservoirs, cause dam failure and degrade power turbines. Here we recommend forward-looking design and maintenance measures and sustainable sediment management solutions that can help transition towards climate change-resilient dams and reservoirs in High Mountain Asia, in large part based on improved monitoring and prediction of compound and cascading hazards. © 2022, Springer Nature Limited.

The increase in cost of carbonaceous materials, as well as significant costs of industrial waste, have prompted scientists to use alternative raw materials as components of the construction industry. This study investigated the suitability of waste products from the coke industry as modifying agents for polymer bitumen. The by-product of the coking industry reaches a high level of silicon and is called siliconcontaining additive (SCA), the composition of which is similar to the mineral solutions for bitumen. In this article, the results of using SCA as standard additives for modified polyethylene terephthalate (PET) with bitumen waste is presented. Using the Simdist boiling point distribution method, simulated high temperature distillation by gas chromatography, differential thermal (DTA) analyzes, and other methods of physic-chemical properties of bitumen after adding of SCA were studied. It was revealed that the connection and consumption of additives occurs because of the content of aromatic components, as well as an increase in the consumption of bitumen characteristics. Thus, the presented method for obtaining road surfaces based on PET waste and coke production waste meet the requirements of sustainable development, which implements both a significant use of industrial waste as secondary products and their processing into a new product using an energy-saving technology that reduces the consumption of raw materials and resources. © 2023, Kauno Technologijos Universitetas. All rights reserved.

Central Asian countries, which include Kazakhstan, the Kyrgyz Republic, Tajikistan, Turkmenistan, and Uzbekistan, are known to be highly exposed to natural hazards, particularly earthquakes, floods, and landslides. With the aim of enhancing financial resilience and risk-based investment, planning to promote disaster and climate resilience in Central Asia, the European Union, in collaboration with the World Bank and the Global Facility for Disaster Reduction and Recovery (GFDRR), launched the Strengthening Financial Resilience and Accelerating Risk Reduction in Central Asia (SFRARR) regional programme. Within this framework, a consortium of national and international scientific institutions was established and tasked with developing a regionally consistent multi-hazard and multi-asset probabilistic risk assessment. The overall goal was to improve scientific understanding on local perils and to provide local stakeholders and governments with up-to-date tools to support risk management strategies. However, the development of a comprehensive risk model can only be done with the basis of an accurate hazard evaluation, the reliability of which depends significantly on the availability of local data and direct observations. This paper describes the preparation of the input datasets required for the implementation of a probabilistic earthquake model for the Central Asian countries. In particular, it discusses the preparation of a new regional earthquake catalogue harmonized between countries and homogenized in moment magnitude (Mw), as well as the preparation of a regional database of selected active faults with associated slip rate information to be used for the construction of the earthquake source model. The work was carried out in collaboration with experts from the local scientific community, whose contribution proved essential for the rational compilation of the two harmonized datasets. © 2024 Valerio Poggi et al.

Urban construction in flooded and waterlogged areas has a centuries-old history. Of the repeatedly used water treatment systems, the most effective turned out to be a water-channel system that allows groundwater or atmospheric water to be diverted to the water body closest to the development area or located inside it. In most cases, the channels allow solving some of the problems in the field of passenger and freight transport, complementing or duplicating overland transportation by waterways. The best examples from world practice show the possibility of organizing highly comfortable buildings on sites with both road and water-channel communication. The Astana city was historically formed on the right bank of the Yesil’ River, where geological and hydrological conditions did not have dominant factors in the form of flooding and waterlogging due to precipitation and groundwater. At the end of the last century, the intensive growth of the city, which became the capital of Kazakhstan, led to the urban development of the left bank of the Yesil’ River. In this area (especially in the southwestern part), there are many water bodies and a very high groundwater level, which both independently and in combination with flood waters and precipitation periodically forms flooding of vast areas. Sporadically carried out measures to drain overflowing water bodies, the construction of wells and drainage outlets only partially solved the annually escalating problem. In these circumstances, it seems advisable to use the experience of the United States, where a developed canal system has been formed in the Miami city. These channels eliminated the danger of flooding of the territory, provided convenient water transport links to various areas, formed commercially attractive areas with private access for individual development, as well as comfortable recreational areas. The proposed water-channel system for the city of Astana has a relatively complex spiral-arc configuration. This is proposed due to terrain peculiarities of the landscaped area and the location of existing water bodies. This system is linked to the riverbed of the Yesil’ River and ensures the flow of excess water into it downstream of the river outside the city limits. As a result, many sites with convenient street-road and water-channel connections to the existing urban area become available for active urban development. © 2024 by authors, all rights reserved.

This scientific study presents a comprehensive assessment of the Priirtysh sedimentary basin, focusing on identifying potential reservoirs for carbon dioxide (CO₂) storage. The methodology includes 2D seismic data interpretation, well log analysis, and the construction of a 3D geological model using Petrel software. Seismic surveys conducted between 1992 and 1997, along with data from more than 4,000 hydrogeological wells, were utilized to develop a structural and lithological model of the basin. Kazakhstan currently lacks dedicated infrastructure for CO₂ capture and storage. Notably, potential CO₂ storage formations in the Pavlodar region, which accounts for the highest greenhouse gas emissions in the country, have yet to be systematically evaluated. Thus, investigating the CO₂ storage potential of regional aquifers is of both scientific and strategic importance. By combining geophysical (seismic interpretation) and petrophysical (porosity, permeability, and reservoir quality) analyses with 3D geological modeling, this study offers new insights into the subsurface architecture of the basin. The integration of seismic and well log data significantly enhances the model’s accuracy and enables the identification of structural complexities. Key findings indicate the presence of several promising aquifers at depths between 500 and 2,000 m, particularly within the Upper Jurassic–Cenozoic formations. The study estimates the CO₂ storage capacity of these aquifers and assesses their suitability for long-term containment, laying the groundwork for future hydrodynamic simulations and injection feasibility studies. Ultimately, the identification of viable storage formations in the Pavlodar region aligns with Kazakhstan’s strategic goal of achieving carbon neutrality by 2060. © by the authors.

To improve the operational quality of paddy combine it was proposed to include additional innovative operations in plant process of pre-threshing preparation of rice biomass with anticipating seeds selection which increases seeds separation, reduces injuries, forms stable operation of threshing-separating device of combine harvester. Retrofit feeder house is a solution to ensure the stable uniform feed of assorted biomass into the threshing separation device. Equipped with tool package – harvester feeder house turned to the running control equipment for incoming flow of biomass. The movement of threshed heap inside the modified geometry of feeder house with tools effectively affect on caulis, panicle of rice – screed, and brings the biomass vibration mode i. e., lead to the dynamic separation of rice headed seeds to threshing rotor. Vibration (tossing) of biomass make it possible for free rice seeds pass through caulis to the bottom of feeder house. Development program of innovative driving devices of multifunctional rice seed harvester combine considered the development of preproduction explorational program ensuring the information on harvest loss during various rice harvesting, their separation between main harvester aggregates – collector, auger, elevator, threshing mill. It is proposed to combine, in a single complex, all the control parameters, subordinating their actions, into an active control device of the technological process, affecting the shapes of rolls formed from various varieties and yields of rice. © 2023, Authors. This is an open access article under the Creative Commons CC BY license

Article discusses preliminary work results carried out by the Kazakh National Research Technical University (KazNIRU) named after K.I. Satpayev together with the Central Laboratory for Certification of Building Materials (CLCBM) on resource saving and recycling of industrial waste to obtain demanded building materials. Processing of industrial wastes (wastes of enrichment and processing, overburden and enclosing rocks), close in composition to natural and used in traditional areas, practically does not differ from the industrial processing of natural mineral raw materials. Creation of efficient technologies for processing of technogenic raw materials is urgent task, which make it possible to obtain competitive products from it for various industries. Utilization of waste from mining and metallurgical complexes makes it possible to reduce technogenic load on the environment and ensure rational use of secondary raw materials. Possibility of obtaining solutions for strengthening fractured rocks and building structures has been studied. Study results of wastes of the Akshatau Mining and Processing Plant are presented and the possibility of using them to strengthen fractured rocks is confirmed. With the help of strengthening, it is possible to slow down processes of slacking and sloughing of rocks, to prevent ledges collapse and rocks sloughing from surface of slopes. Rock mass hardening in the weakened areas is achieved by substances injection into array cracks, which, after hardening and setting of rock, significantly increase its resistance to shear. The most widespread among hardening methods is cementation during mine workings (underground structures) in fractured rocks. Significance of obtained results for construction industry lies in the expansion and reproduction of raw material base of building materials industry through use of MMC waste (concentration tailings) and development of resource-saving technologies. © 2023, National Academy of Sciences of the Republic of Kazakhstan. All rights reserved.

The present study demonstrates, for the first time, the fundamental possibility of producing electrode materials for sodium-ion batteries through low-temperature carbothermic smelting of ilmenite concentrate fluxed with calcined soda and diatomite, followed by aqueous refining of titanium slag. The primary phase composition of the slag includes Na2Ti3O7 (48.2%), Na0.23TiO2 (22.0%), Na2TiSiO5 (11%), and Na0.67Al0.1Mn0.9O2 (8.5%), which, upon hydrolysis, transform into a monophase titanium dioxide with intercalated sodium—Na0.23TiO2. Thermodynamic analysis of the heat effects of chemical reactions among raw materials and resulting products substantiates the role of silicon and sodium oxides, carbon, oxygen, and water in the formation of various electrode materials during carbothermic flux conversion and aqueous refining. Insights into the mechanisms of thermochemical formation and hydrothermal phase transformations offer a scientific basis for the development of intercalation systems from abundant and low-cost natural raw materials, bypassing the need for expensive precursor synthesis. © 2025 by the authors.

The operation of fusion reactors is based on the reaction that occurs when two heavy hydrogen isotopes, deuterium and tritium, combine to form helium and a neutron with an energy of 14.1 MeV D + T → He + n. For this reaction to occur, it is necessary to produce tritium in the facility itself, as tritium is not common in nature. The generation of tritium in the facility is a key function of the breeder blanket. During the operation of a D–T fusion reactor, high-energy tritium is generated as a result of the 6Li(n,α)T reaction in a lithium-containing ceramic material in the breeder blanket. Lithium metatitanate Li2TiO3 is proposed as one of the promising materials for use in the solid breeder blanket of the DEMO reactor. Several concepts for test blanket modules based on lithium ceramics are being developed for testing at the ITER reactor. Lithium metatitanate Li2TiO3 has good tritium release parameters, as well as good thermal and thermomechanical characteristics. The most important property of lithium ceramics Li2TiO3 is its ability to withstand exposure to long-term high-energy radiation at high temperatures and across large temperature gradients. Its inherent thermal stability and chemical inertness are significant advantages in terms of safety concerns. This study was a continuation of research regarding tritium and helium release from lithium metatitanate Li2TiO3 with 96% 6Li during irradiation at the WWR-K research reactor using the vacuum extraction method. As a result of the analysis of experiments regarding the irradiation of lithium metatitanate in vacuum conditions, it has been established that, during irradiation, peak releases of helium from closed pores of the ceramics are observed, which open during the first 7 days of irradiation. The authors assumed that the reasons samples crack are temperature gradients over the ceramic sample, resulting from the internal heating of pebbles under the conditions of their vacuum evacuation, and contact with the bottom of the evacuated capsule. The temperature dependence of the effective diffusion coefficient of tritium in ceramics at the end of irradiation and the parameters of helium effusion were also determined. © 2023 by the authors.