Satbayev University

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...

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...

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...

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...