Satbayev University

Role of Acid Structure in Structure–Property Relationships of Reprocessable Epoxidized Soybean Oil Thermosetting Networks

Thermosetting polymers offer excellent thermal stability, chemical resistance, and mechanical integrity, but their permanent covalent crosslinks limit recyclability and reprocessability. In this work, ESO-based vitrimer-like polyester networks were synthesized from epoxidized soy...

Functional Nanostructured Carbon Honeycomb Monoliths for Hemoadsorption: Preliminary Studies on Biocompatibility, Protein-Bound Uremic Toxins and Inflammatory Cytokines Elimination

Rice husk (RH) is a renewable siliceous lignocellulosic waste providing a unique, greener and less toxic alternative to conventional synthetic polymeric precursors in the production of carbon-based materials for biomedical applications. In this work we studied the porous structur...

A Reproducible Evaluation of Hybrid Spectral–Temporal Features for Four-Class Respiratory Sound Event Classification

Respiratory-sound event classification is challenged by non-stationarity, class imbalance, heterogeneous acquisition, and participant-correlated recordings. This study evaluates whether direct fusion of short-time Fourier transform (STFT), mel-frequency cepstral coefficient (MFCC...

Integration of Nickel Adsorption Procedures into the Hydrometallurgical Processing of Laterite Ore: Comparative Performance of Two Chelating Ion-Exchange Resins with Insight into the Adsorption Mechanism

Selective Ni(II) recovery from polymetallic sulfate leachates is challenging because of competition from accompanying metal ions, particularly Mg(II). This study systematically evaluated selective Ni(II) recovery using commercial chelating ion-exchange resins and assessed their a...

From redox chemistry to device integration: next-generation supercapacitors engineered from metal telluride, sulfide, and selenide heterostructures with MXenes and MOFs comparison, progress, challenges, and prospects

Metal chalcogenides, including tellurides, sulfides, and selenides, have become promising materials for high-performance supercapacitors due to their redox activity, high theoretical capacity, and tunable structures. This review discusses challenges, architectural design, synthes...

Engineering analysis of a low-power wind turbine’s structural elements

This paper presents a comprehensive approach to studying the influence of low-power wind turbine’s structural elements design, such as confuser, diffuser, and cone, on its efficiency. The turbine geometry was created in the ANSYS DesignModeler environment and analyzed using ANSYS...

TDNN-Based Ankle Angle Prediction from Lower-Limb Kinematics and Surface EMG

This study presents a Time Delay Neural Network (TDNN) framework for predicting sagittal-plane ankle angle from proximal lower-limb kinematics and surface electromyography (sEMG), with the long-term objective of supporting active ankle prosthesis control. Two TDNN configurations...

Towards Sustainable Bioleaching of Platinum Group Metals from Spent Automotive Catalysts

Spent automotive catalysts represent an important secondary resource for platinum group metals, offering environmental and economic advantages over primary mining. This review evaluates bioleaching-based recovery strategies of these metals as sustainable alternatives to conventio...

Mechanical properties and fracture failure characteristics of fractured limestone under coupled freeze-thaw and cyclic loading

<title>Abstract</title> The Central Asian Orogenic Belt possesses abundant mineral resources. As mining activities extend into high-altitude cold regions, the safety and stability of rock engineering projects, such as open-pit mine slopes, have become increasingly prominent. This...

Alginate-Based Ternary Composites for Water Treatment: Synthesis, Mechanisms, and Applications

Alginate, as a natural polymer, has been widely used in the removal of pollutants in water due to its renewability, biocompatibility and abundant functional groups. However, it still has some limitations such as low specific surface area, poor mechanical strength and single funct...

A Comprehensive Review of SLR Systems: Challenges, Datasets, and Unresolved Gaps

With the rapid advancement of sensor technologies, automated sign language recognition (SLR) has emerged as a critical enabler of inclusive communication systems for individuals with hearing and speech impairments. Although substantial research effort has been directed toward thi...

Progressive Melt Fractionation as the Primary Control on the Formation of Rare-Metal Pegmatites: Evidence for Continuous Granite–Pegmatite Evolution in the Central Kalba Ore District, Eastern Kazakhstan

Rare-metal pegmatites of the Kalba–Narym belt (Eastern Kazakhstan) represent an important source of Li, Cs, Ta, Nb, Be, and associated critical metals. Despite extensive geological investigations, the relationships between granites, pegmatites, and late-stage alteration products...

Quasi-Experimental Field Assessment of Haul-Road Maintenance Effects on Fuel Consumption, Cycle Time and Mechanical Loading of Open-Pit Dump Trucks

Haul-road condition in open-pit mining affects fuel consumption, transport-cycle throughput and dump-truck mechanical loading. This study conducted a quasi-experimental field assessment of local maintenance effects on severely degraded road segments. The full cycle register conta...

Artificial Intelligence-Based Respiratory Sound Analysis: A Scoping Review of Digital Auscultation Technologies, Public Datasets, Signal Processing, and Deep Learning Methods

Respiratory sound analysis is becoming increasingly popular as a non-invasive method for detecting adventitious sounds and aiding in the diagnosis of respiratory diseases such as chronic obstructive pulmonary disease (COPD), asthma, and pneumonia. However, studies in this field d...

Advanced hybrid nanofiltration membranes enabled by dual-zwitterionic locking for salt and heavy metal removal

The development of nanofiltration (NF) membranes is critical for achieving sustainable water purification and resource recovery. However, conventional polyamide NF membranes often encounter trade-offs between ion selectivity and water permeability. Herein, we introduce a dual-zwi...