China University of Mining and Technology

Coal-Body Structural Evolution, Multiscale Pore-System Reorganization, and Methane Storage-Transport Characteristics Across a Tectonic Deformation Gradient

Tectonic deformation can reorganize adsorption-related pores, matrix pore space, and pore-throat-fracture networks, but how these functional domains jointly govern fluid mobility and permeability stability under stress remains unclear where deformation intensity and coal rank cov...

Cross-Layer Propagation Behavior of Multi-Cluster Hydraulic Fractures in Inclined Bedded Reservoirs

Bedding planes widely exist in stratified reservoirs and strongly restrict the vertical cross-layer growth of hydraulic fractures. Traditional displacement discontinuity method (DDM) tends to produce spurious negative apertures for compressed weak bedding interfaces and neglects...

Continuous localization method for unmanned mobile platform based on GNSS/IMU/Vision fusion in multi-stage environments of coal mine

Accurate localization of unmanned platforms in complex and dynamic mining environments is increasingly essential amid the rapid advancement of intelligent mining. Traditional GNSS/IMU localization methods face several limitations in mining applications, including low adaptability...

Exothermic behavior and microstructure control of porous Ni-Al compounds synthesized by ultrafast self-exothermic reaction

Porous Ni-Al compounds exhibiting distinct reaction behaviors and pore structure characteristics were fabricated via an instantaneous and synchronous self-exothermic reaction. As the heating rate increased from 2 to 20 °C/min, the porosity decreased significantly from 62.8% to 29...

Social simulations with large language model risk Utopian illusion

Reliable simulation of human behaviour is essential for explaining, predicting, and intervening in our society. Recent advances in large language models (LLMs) have shown promise in emulating human behaviours, interactions, and decision-making, offering a powerful new lens for so...

What kind of innovation and entrepreneurship ecosystem is conducive to the growth of unicorn enterprises? – A dynamic fsQCA analysis

The innovation and entrepreneurship ecosystem provides indispensable growth momentum for unicorn enterprises through the coupling and synergistic evolution of talent, technology, capital, and markets. To deconstruct the driving paths of different ecosystems on unicorn growth, thi...

Cultural sustainability through kinship networks: A quantitative analysis of marriage strategies in Qing China’s literary lineages (1644–1911)

This study examines how marriage-network position was associated with recorded literary visibility among Qing literary families. Using Xu Yanping’s Genealogical Networks of Literary Lineages in the Qing Dynasty (2010), we reconstructed a reproducible surname–location-level marria...

Machine learning-based performance prediction and intelligent screening of compound collector for low-rank coal with varying slime contents

The traditional trial-and-error development of compound collectors for low-rank coal (LRC) flotation is inefficient, and the process is susceptible to slime interference. To address this, a data-driven machine learning (ML) strategy was proposed to predict and screen optimal coll...

Pore-scale transport and adsorption behavior of Mn(II) in CT-reconstructed adsorptive permeable filling materials for mine water pollution control

Constructing underground reservoirs in coal mine goafs can effectively mitigate surface subsidence and facilitate large-scale utilization and purification of mine water. However, seepage characteristics within backfill bodies and the migration–adsorption behavior of Mn 2+ remain...

Inhibition Mechanisms of Lithium-Ion Battery Deflagration by the Free Space and Aerogel Wall Surface Inside an Explosion-Proof Power Enclosure

Abstract Deflagration of lithium-ion battery thermal runaway (TR) products poses a safety challenge for explosion-proof power enclosures in underground coal mines. In this study, sealed-chamber experiments and chemical kinetic simulations were combined to investigate the effects...

Carbonate Mineral Dissolution in Coal and the Associated Evolution of Fracture–Macropore Structure under Hot Flue Gas Treatment

Abstract Hot flue gas injection into coal seams shows considerable potential for enhancing gas drainage from low-permeability coal seams; however, how the carbonate mineralogical composition of coal controls its fracture–macropore response to CO2–H2O acidification remains poorly...

Numerical Simulation of the Propagation Characteristics of a Pulse Fracture Network in Shale Reservoirs under Thermo-Hydro-Mechanical-Damage Coupling

Abstract Deep shale reservoirs feature poor physical properties and well-developed dense bedding planes. Conventional hydraulic fracturing produces limited stimulated volume and inadequate activation of natural fractures, failing to effectively boost reservoir permeability, while...

Physical simulation of roadway surrounding rock cumulative failure characteristics under dynamic loading and energy-absorbing support solutions

Roadway surrounding rock in deep coal mines is subjected to the combined effects of static loading and dynamic disturbances, which can induce progressive deformation, crack propagation, and catastrophic instability. To investigate the progressive failure characteristics and mecha...

Photo‐Enhanced Electronic Metal–Support Interaction Boosts Low‐Temperature Water–Gas Shift Reaction via Ni δ+ –O V –Ce 3+ Interfacial Redox Cycling

ABSTRACT Nickel (Ni) is an attractive non‐noble‐metal catalyst for the water‐gas shift reaction (WGSR), yet strong CO adsorption and competing methanation severely limit its activity and selectivity. Herein, we develop a series of NiCe layered double hydroxide‐derived catalysts (...

A decoupling-learning-based unified predictor for dynamic rock strength under sparse and heterogeneous data

Predicting the dynamic strength of rock masses under complex disturbance loads is crucial for safe design of deep underground engineering. However, this task is fundamentally challenged by heterogeneous feature spaces of intact versus fractured rocks, severe data sparsity and mea...

FrothNet-LightGBM: A two-stage multimodal model for concentrate ash prediction in coal flotation

Concentrate ash content is a key indicator of product quality and process adjustment in coal flotation. In industrial plants, ash content is usually measured by offline laboratory analysis, which limits continuous quality monitoring. This study proposes a FrothNet-LightGBM two-st...

Comprehensive electrochemical study on SrMo0.2Fe0.8O3-δ perovskite electrodes for symmetrical solid oxide cells

Solid oxide cells (SOCs) have shown great potential for the development of renewable energy systems in terms of power generation and energy conversion efficiency. However, in the traditional structural design of SOCs, thermal asymmetry between components can easily occur during t...

Multi-Indicator Fusion-Based Unsupervised Statistical Method for Slope Deformation Anomaly Warning in Open-Pit Coal Mines

Open-pit coal mine slope spalling events are rarely fully documented with sufficient samples, and the precision of publicly available monitoring data is inconsistent. To address these problems, this study develops a causality-oriented anomaly identification method that fuses four...

Seismic Signal Denoising via RRTO-Optimized VMD Combined with Spectral Kurtosis and Enhanced Wavelet Packet Thresholding

Abstract Seismic signal denoising is a key link to improve the interpretation accuracy of seismic data, especially in the complex noise background, where random noise and coherent noise will seriously interfere with the identification and extraction of effective signals. To this...

In situ exsolved M-Ru bimetallic sites with fine-tuned charge distribution for enhanced CO2/H2O co-electrolysis performance in La0.75Sr0.25CrO3-δ-based SOEC cathodes

Advancing the co-electrolysis of CO 2 /H 2 O in solid oxide electrolysis cells (SOECs) critically relies on the development of cathode with high efficiency and excellent stability. This study designs high-performance perovskite oxide cathode materials (La 0.75 Sr 0.25 Cr 0.7 M 0....