Xi'an University of Science and Technology

Evolution and mechanism of oxidation characteristics of coal with different degrees of thermal damage in coalfield fire zones based on multi-method joint characterization

Coalfield fires prevail in major coal‑producing countries worldwide, causing resource waste and environmental pollution. Thermal damage is a critical factor affecting the evolution of fire zones. However, the evolution of coal oxidation characteristics under different degrees of...

Early-Charging Features and Heterogeneous Ensemble Learning for High-Fidelity Lithium-Ion Battery Capacity Estimation

Accuracy capacity estimation in lithium-ion batteries serves as a cornerstone for battery management systems. Although recent data-driven methods have advanced this field, practical applications still face the challenge of reconciling high-quality feature extraction with minimal...

Contact-resistance controlled electrical response of conductive-proppant-supported coal fractures for coalbed methane reservoir monitoring

Conductive-proppant-assisted electrical monitoring provided a potential method for identifying the propped state of hydraulic fractures in coalbed methane reservoirs. To reduce the interference caused by natural coal heterogeneity, coal-like analog materials were prepared from co...

DNLA-AGW: A Mine Image Enhancement Algorithm Based on Local Perception and Multi-Domain Guided Fusion

To address the problems of uneven illumination distribution, missing edge details, and noise interference in underground coal mine images, a mine image enhancement algorithm based on local perception and multi-domain guided fusion is proposed. First, the algorithm constructs a dy...

Research on the Performance Prediction of Fly Ash Slurry by Neural Network Based on Information Bottleneck Theory and Attention Mechanism

In grouting projects, the relationship between slurry properties and mix proportions is multivariate and nonlinear. Researchers have widely employed mathematical and computational methods to investigate this relationship, and the use of machine learning to predict the properties...

Effects of added pyrite on apparent kinetic responses and structural evolution during pyrolysis of clarain and durain from tar-rich coal

This study investigated how added pyrite affects the stage-dependent pyrolysis behavior and structural evolution of clarain (XJH-L) and durain (XJH-A) from the No. 2 –2 coal seam of the Xiaojihan minefield in the northern Shaanxi Jurassic coalfield, China. Samples containing 0, 3...

A High‐Resolution Transmission Electron Microscopy Image Processing Workflow for Extracting Aromatic Lattice Fringes in High‐Rank Coal

Quantitative extraction of aromatic lattice fringes from high-resolution transmission electron microscopy (HRTEM) images is essential for the nanoscale characterization of high-rank coal. However, variations in image processing strategies may introduce structural biases into the...

Revegetation of semi-arid mine dumps: Arbuscular mycorrhizal fungi alleviate water competition in mixed planting systems

Water scarcity is the primary limiting factor for achieving sustainable revegetation and ecological restoration in arid and semi-arid mining areas. The application of arbuscular mycorrhizal fungi (AMF) and mixed planting has proven effective in promoting vegetation establishment...

Estimation of field-scale crop evapotranspiration from the mechanistic SIF-ET model using the UAV hyperspectral imagery

Accurate estimation of evapotranspiration (ET) is critical for agricultural water management and understanding land-atmosphere interactions. Conventional thermal and optical remote sensing is a powerful tool for ET estimation, but existing methods remain constrained by empirical...

Co-Adding Biochar and Zeolite to Chicken Manure Compost: Nutrient Retention, Humification, and Bacterial Community Responses

Compost instability and low nutrient content remain the primary constraints on the resource utilization of livestock manure compost. Although biochar and zeolite have individually demonstrated ameliorative effects, their combined application and the associated microbial mechanism...

A Dual-Physics-Informed Neural Network with Incremental Learning for Corrosion Fatigue Crack Growth Prediction in Aluminum Alloys

Aluminum alloys used in aircraft structures are susceptible to corrosion fatigue cracking under combined aggressive environments and cyclic loading, threatening structural integrity. Pure data-driven models often fail under distribution shifts, while single-physics-informed neura...

Defect-engineered high-entropy spinel ferrite nanofibers via Joule heating for superior microwave absorption

Abstract Spinel ferrites with exceptional magnetic permeability, optimal impedance matching, and robust chemical stability have attracted considerable attention in high-performance electromagnetic wave (EMW) absorption applications, yet their insufficient dielectric dissipation a...

Acoustic and mechanical responses of coal subjected to dry–wet cycling: a petrophysical perspective

Abstract Underground coal mine reservoirs experience repeated impoundment and drainage, exposing coal pillars to dry–wet cycling and causing cumulative deterioration. This study investigated the acoustic and mechanical responses of Wudong coal specimens subjected to 0, 1, 3, and...

Coal Combustion-Related Acoustics: A Three-Stage Framework for Temperature Diagnosis During Oxidation and Conversion

Coal combustion-related acoustics comprise self-generated responses during coal oxidation and conversion and may enable non-contact temperature-related diagnosis. This review classifies these signals into three families: (i) thermally induced acoustic emission (AE), (ii) fluid–th...

Structural Associations of Digital Economy Components with Green Economic Efficiency in China

Digital transformation may improve productive efficiency while increasing energy and material demand. We examine its association with green economic efficiency (GEE) in a balanced panel of 30 Chinese provincial-level regions from 2012 to 2023. GEE is measured using an undesirable...

Radical-mediated synergistic remediation of crude oil contamination by nutrient-enriched indigenous microbial consortium from multiple culture media

To improve the low remediation efficiency of single microbial strains for crude oil-contaminated wastewater, indigenous microbial consortium was enriched using four media (TSB, PDB, YPD, and CPD). A ternary system integrating microbes, surfactants, and chemical oxidation was cons...

Electron‐Rich Para ‐Methylpyridine‐Functionalized TEMPO Empowers Long‐Lived Neutral Aqueous Organic Redox Flow Batteries

2,2,6,6‐Tetramethyl‐1‐Piperidinyloxy (TEMPO), one of the most stable nitroxide radicals, has been widely used as a catholyte for aqueous organic redox flow batteries (AORFBs) owing to its high potential and reversible redox characteristics. In spite of improved stability and wate...

A two-stage efficient fine-tuning framework for vertical domain text embedding

Text embedding in vertical industrial domains provides a critical foundation for professional information retrieval, semantic matching, and intelligent decision-making. However, general-purpose embedding models often fail to meet the demands of complex industrial applications bec...

Mechanical behavior and fracture mechanisms of rock-backfill composites under different hole geometries and backfill conditions

Abstract Rock-backfill composites, as key load-bearing structures in deep mining, exhibit mechanical behavior and failure mechanisms that are predominantly controlled by excavation-induced hole geometry and backfill conditions. In this work, a series of uniaxial compression tests...

Study on Fracture Propagation Behavior of Composite Directional Fracturing with Prefabricated Crack and Control Holes in Coal Seams

In order to achieve the goal of changing the direction of cracks and actively relieving pressure to increase permeability in local areas, and to prevent excessive stress concentration and areas with poor anti reflection effect in coal seams, this paper proposes a method of coordi...