Shaanxi Coal Chemical Industry Technology Research Institute

Research on the reaction mechanism of key active groups in biomimetic antioxidant hydrogel for inhibiting coal spontaneous combustion

Coal spontaneous combustion will reduce the fuel quality and produce harmful gases. To develop an environmentally friendly material to regulate the reactivity of coal fuel, this study developed a green, biomimetic antioxidant hydrogel inhibitor. Using proanthocyanidins modified w...

Flexible MXene actuator with multi-stimulus responsiveness for biomimetic motions

Inspired by soft-bodied organisms in nature, this study fabricated an actuator with asymmetric curvature on its two sides using an unconventional dual-flow filtration method. Owing to the significant difference in the thermal expansion coefficients between MXene and PVDF, MXene s...

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...

Preparation of layered double hydroxides from coal gangue in a deep eutectic solvent system and their application in flame retardancy of coal gangue

Coal gangue, a major solid waste from coal mining, is prone to spontaneous combustion during long-term storage, releasing toxic gases and creating serious environmental and safety concerns. In this work, coal gangue was converted into layered double hydroxides (C-LDH) using a dee...

Domain-Adaptive Audio Large Language Model for Acoustic Fault Diagnosis and Semantic Description of Coal Mine Equipment

Underground coal-mine equipment operates under broadband noise, high dust, humidity, and methane. Acoustic sensing is uniquely suited to this environment: it captures vibration, friction, and airflow signatures without physical contact, incurs low sensor-deployment cost, responds...

Interfacial Thermal Transport and Phonon Scattering of Graphene and Graphene Oxide Embedded in Calcium Silicate Hydrate: A Molecular Dynamics Study

Graphene and graphene oxide (GO) are promising nanofillers for improving thermal transport in cementitious materials, but their performance is strongly affected by interactions with calcium silicate hydrate (C-S-H). Understanding how these fillers retain or lose their heat-transp...

Quantification and Mechanism of the Interborehole Effect in Coal Seam Gas Drainage

Abstract Coal seam gas drainage is crucial for reducing carbon emissions and ensuring safe coal mine production. In engineering, multiborehole combined drainage is widely adopted. However, the interaction among boreholes leads to the complex superposition of their respective infl...

Prediction of Waterjet Cutting Depth Under Multi-Field Coupling Based on Zero-Shot Learning

Sudden collapse accidents in mine roadways occur frequently, and post-disaster emergency rescue faces major challenges in terms of safety and efficiency. Therefore, efficient demolition equipment and intelligent prediction methods are urgently needed. Abrasive waterjet technology...

Study on creep deformation behavior and constitutive model of filled fractured sandstone under freeze-thaw cycles

The time-dependent deformation and stability of fractured rock in seasonally frozen regions constitute a key scientific issue for engineering safety. To investigate the long-term deformation of fractured rock under the coupling of freeze-thaw (F-T) cycles and sustained loading, t...