Xi'an University of Science and Technology

Safety risk and thermodynamic behavior during liquid CO2 injection into broken coal: An experimental study

Injecting liquid CO 2 into the goaf is the most promising prevention and control technology for alleviating the risk of spontaneous combustion of broken coal. However, the thermodynamic behavior of liquid CO 2 during injection due to phase change remains unclear, hindering predic...

Radical Passivation to Incubate Closed Pore Structure and Surface Functionalities of Hard Carbon for High‐Efficiency Sodium Storage

ABSTRACT Biomass‐derived hard carbon anodes receive remarkable prospects for use in sodium‐ion battery technology. However, precise regulation of carbon crystallites is extremely critical yet formidable, which seriously retards its scale‐up industrialization. Herein, a versatile...

From industrial waste to energy storage: Si@C core-shell anodes derived from coal gasification fine slag for lithium-ion batteries

Coal gasification fine slag (CGFS) is a solid waste rich in inorganic components (over 60%, mainly SiO₂, Al₂O₃, and Fe₂O₃). Disposal of CGFS via landfilling and stockpiling leads to resource waste and environmental pollution, making effective valorization of this material a criti...

Parametric Design of a Helical Electromagnetic Bandgap Reflector for an Equiangular Spiral Antenna at 2.5 GHz

This study presents a planar helical electromagnetic bandgap (EBG) structure designed for integration with an equiangular spiral antenna operating at 2.5 GHz. An equivalent-circuit model is introduced, and the effects of the unit-cell width, substrate thickness, metallic-strip wi...

Rock Bridge Fracture and Differential Deformation During Progressive Failure of Rock Slopes with Intermittent Joints Using a Stabilized Peridynamics Model

Progressive failure of rock slopes with intermittent joints involves crack propagation through intact rock bridges and the development of differential deformation. This study uses a stabilized non-ordinary state-based peridynamics model to investigate these processes. The model c...

A Spatiotemporal Consistency-Enhanced Tightly Coupled LiDAR-Visual-Inertial SLAM Method for Complex Degraded Environments

Tightly coupled LiDAR-visual-inertial simultaneous localization and mapping (simultaneous localization and mapping, SLAM) systems are prone to observation distortion, weak state observability, and cumulative drift under weak-texture conditions, dynamic illumination, geometric deg...

SAM ‐ CompAug : Segment Anything‐Assisted Synthetic Data Augmentation for Industrial Part Detection

ABSTRACT Against the backdrop of the rapid advancement of intelligent manufacturing, part detection, as a core task within industrial vision systems, faces limitations due to the scarcity of high‐quality and fine‐grained datasets. To address this challenge, we propose a data augm...

Few-Shot Remote Sensing Scene Classification Leveraging Collaboration of Foundation Models

Foundation models have shown remarkable generalization ability for few-shot learning (FSL). However, their potential for remote sensing scene classification has not been fully explored. Existing methods mainly adapt a single vision–language model and seldom exploit the complement...

Thermal radiation-driven coal spontaneous combustion and its risk classification and early warning

Coal spontaneous combustion is one of the major mine disasters and also a primary trigger of secondary disasters such as mine gas and coal dust explosions. To reveal the combustion characteristics and risk evolution mechanisms of thermal radiation-driven coal spontaneous combusti...

Explosion characteristics of thermal runaway gases from nickel cobalt manganese (NCM) and lithium iron phosphate (LFP) batteries under elevated temperatures and pressures: Experiments and chemical kinetic analysis

This study systematically elucidates the explosion characteristics and kinetic mechanisms of gases released during thermal runaway in lithium-ion batteries with varying cathode chemistries. Experiments were conducted in a 60 L constant-volume explosion vessel for using reconstruc...

VIENNA rectifier improved carrier pulse width modulation strategy

Purpose Aiming at the current zero-crossing distortion in VIENNA rectifiers caused by the phase shift between the modulation voltage vector and the input current vector due to grid-side filters, this paper aims to propose a hybrid modulation strategy combining reactive current in...

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...

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...

Laser beams target-based monocular vision measurement system self-calibration and localization method for boom-type roadheader in large-scale underground complex scene

The monocular vision measurement system is an effective approach to obtain accuracy and reliable pose estimation for underground tunneling, especially with a specially designed laser beams targets for the far-distance and large-scale scene localization in the tunneling face. Howe...

Dynamic response and long-term operational performance of a ball double-screw hydraulic robotic joint actuator

Hydraulic joint actuators are important components in robotic motion systems, where dynamic response, force transmission stability, and long-term operational reliability are critical under repeated loading. However, conventional screw-based hydraulic joints often suffer from fric...

Preparation and properties of coal slime-based biomass composite gel——Coal mine fire prevention and control

To improve coal spontaneous combustion (CSC) prevention while promoting the high-value utilization of coal slime (SM), a novel SM-based biomass composite gel (SA/H/X/SM) was developed. The formulation was optimized using an orthogonal experimental design, and its rheological beha...

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...

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...

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...