Henan Polytechnic University

Multifractal Evolution Characteristics of Multiscale Fracture-Pore Structures in Coal under CO2 Phase-Transition Fracturing

Abstract To deeply analyze the multifractal evolutionary characteristics of multiscale fracture-pore structures in coal subjected to CO2 phase transition fracturing (CO2–PTF), CO2–PTF experiments on coal samples were carried out in this study. Multiple multiscale fracture-pore ch...

Process-Inspired Latent Dynamics for Direct Multi-Step Regional Sea Surface Temperature Forecasting

Sea surface temperature (SST) forecasts support marine environmental monitoring, hazard assessment, and operational ocean services. Regional multi-step prediction remains difficult because SST-only models must represent transport, spatial spreading, and local nonlinear variation...

Wettability Alteration of Coals with Different Coal Ranks Induced by Fluorocarbon Surfactant FS-61

Abstract Coal wettability strongly influences coalbed methane (CBM) recovery and water-block damage in coal reservoirs. Wettability reversal from hydrophilic to hydrophobic is therefore an effective approach for improving CBM production. In this study, low-rank long-flame coal, m...

Associations of long-term Tai Chi practice with vascular health in middle-aged and older adults: potential indirect roles of inflammation and oxidative stress - a cross-sectional study

Tai Chi is a widely practiced mind-body exercise, but its associations with vascular health and the potential involvement of inflammation and oxidative stress remain unclear. We hypothesized that, compared with irregular exercise, long-term Tai Chi practice would be associated wi...

Cross‐Phase Impurity–Interphase Regulation for Suppressing Thermally Accelerated Failure in Ni‐Rich Pouch Lithium‐Ion Batteries

ABSTRACT Practical LiNi 0.8 Co 0.1 Mn 0.1 O 2 ||graphite pouch cells suffer rapid degradation under thermal stress because liquid‐phase impurity reactions, electrode interphase failure, and cathode–anode cross‐talk are tightly coupled. However, most strategies are designed to add...

Social Perception and Design Support for Tourism and Leisure Districts Based on Multi-Source Data

Against the backdrop of China’s urban renewal shift from incremental expansion to stock optimization, tourism and leisure streets face increasing demands for refined, experience-oriented regeneration, yet traditional survey methods fall short in capturing dynamic tourist percepti...

FRA-YOLO: Frequency-guided receptive-field adaptation for occluded ship detection in complex nearshore backgrounds

Detecting ships in complex nearshore scenes is difficult because occlusion, dense interactions, small apparent scale, and structured background textures cause missed detections, false alarms, and inaccurate localization. We propose FRA-YOLO, a compact YOLO11n-based detector that...

Macro‑mesoscopic mechanical response of deformation‑induced disasters in deep coal‑rock structures

Abstract Deep large-section coal-rock chambers are prone to deformation and instability disasters induced by composite structural effects. To reveal the surrounding-rock deformation-failure mechanism of deep coal-rock chambers, this paper performs a dual-scale comparative study o...

Global maize yield-loss risk under atmospheric–soil moisture compound drought: Roles of phenology and cropping systems

Global maize production is increasingly threatened by drought, yet most assessments rely on single indicators and inadequately account for phenological-stage and cropping-system differences. Here we develop a copula-based Climate-Land Drought Index (CLDI) that integrates the Stan...

In Situ Adsorption‐Reduction Removal of Cr(VI) Using Magnetic Fe 3 O 4 @SiO 2 @Zr‐PDC Composite From Aqueous Solution

ABSTRACT A new magnetic Zr‐based MOF composite, Fe 3 O 4 @SiO 2 @Zr‐PDC (where PDC = pyridine‐3,5‐dicarboxylate), was constructed via a facile layer‐by‐layer wet‐loading approach and used for removing Cr(VI) by means of adsorption‐reduction mechanism from aqueous solution. Cr(VI)...

Atomic-Scale Insights into Termination-Dependent Interfacial Electronic Properties and Charge Transfer at MAPbI3/Rare-Earth Oxide (CeO2, La2O3) Heterojunctions

This study combines first-principles calculations with experimental investigations to elucidate the interfacial mechanisms of heterojunctions formed between MAPbI3 and rare-earth oxides (CeO2 and La2O3). For the MAPbI3/CeO2 and MAPbI3/La2O3 systems, four interfacial configuration...

Preparation and Electrochemical Characteristics of Sm2S3–SnS Composite Electrodes

Abstract The influences of Sm2S3 incorporation on the structural features and electrochemical behavior of Sm2S3–SnS composite electrodes were investigated. Both SnS and Sm2S3 maintain their intrinsic crystal structures. Sm2S3 particles are reasonably dispersed on or among the lay...

Multiphysics Modeling and Microscopic Analysis of Water-Based Heat Extraction from Hot Dry Rock Reservoirs

Global geothermal exploitation has not yet adequately compensated for the shortage of fossil fuel resources, primarily owing to limited heat transfer efficiency and the adoption of inappropriate development strategies. This study develops a fluid–structure interaction model tailo...

A 3D meshless electromechanical model incorporating electrode inertia for accurate prediction of resonance characteristics in disk-type MEMS resonators

In this study, wave propagation in disk-type piezoelectric resonators is investigated by extending the polynomial modeling approach to incorporate electrode inertia. For sufficiently thin metallic electrodes, their elastic stiffness is neglected and only their mass contribution i...

Modelling, Simulation and Implementation of Temperature-Influenced Inverter Performance

Power electronic inverters are widely used in electric vehicles, renewable energy systems, industrial automation, and smart power applications due to their high efficiency and fast switching capabilities. However, the performance and reliability of these inverters are significant...

Development and performance evaluation of a novel borehole protection screen pipe for preventing borehole collapse in soft and fragmented rock strata

High-level roof borehole is one of the core technologies for gas control in high-gas mines in China. However, in soft and fragmented rock strata, the influence of mining-induced stress disturbance often causes compression-torsion deformation, borehole wall collapse, or dislocatio...

Preparation of low-density polyethylene-based magnetic N/S carbon material for Cr(VI) removal

Low-density polyethylene (LDPE) is used to prepare the recyclable magnetic LDPE -based N/S-carbon material (WPC-NS) for Cr(VI) removal from wastewater. The Cr(VI) removal process under different removal conditions is deeply analyzed. The saturation magnetization of WPC-NS reaches...

Comprehensive analysis and modeling of ploughing effect in low-frequency vibration-assisted drilling

Low-frequency vibration-assisted drilling (LFVAD), as an advanced drilling process, has shown excellent engineering application prospects in the field of hole-making for difficult-to-cut materials in aerospace. However, LFVAD technology still needs a more comprehensive understand...

Particle-scale discrete-element analysis of soundless cracking agent-induced fracture evolution in coal under laboratory-informed radial loading

Soundless cracking demolition agents (SCDAs) provide a non-explosive method for coal fracturing, but the particle-scale evolution of force transmission and bond failure under laboratory-informed loading remains unclear. This study combines free-volume expansion, steel-tube confin...

A dual-path trust–risk model of GenAI continuance: Conversational attributes, psychological evaluations, and configurational patterns

The rapid advancement of generative artificial intelligence (GenAI) has transformed human–AI interaction by enabling more efficient, flexible, and conversational forms of user support. To better understand users' continuance intention, this study draws on the post-adoption satisf...