Hunan University of Science and Technology

Damage mechanism of track-bridge system and characterization of track irregularity under longitudinal seismic action

Rational prediction of seismic-induced track irregularity is essential for evaluating the post-earthquake traffic capacity of high-speed railways. This study further presents damage evolution mechanisms for both regular and irregular bridge configurations, as well as the associat...

Typical Pore Characteristics of Nontectonic and Tectonic Low-Rank Lignite in Mining Areas and Their Influence on Gas Desorption

Abstract Pore characteristics determine the control mechanism of gas adsorption and desorption in the coal bodies. The fundamental investigation into microscopic pore structures and adsorption–desorption characteristics of long-flame coal represents necessary support for the safe...

Evaluation of the Rb/Sr ratio as an indicator of chemical weathering: a case study from five sedimentary sections in Northeast China

Chemical weathering plays a pivotal role in the Earth's surface material cycle and global climate regulation. It not only facilitates the reconstruction of palaeoclimate characteristics but also provides essential insights into Earth's evolutionary history. The Rb/Sr ratio has be...

An improved class-shape transformation-based particle swarm optimization (ICST-PSO) algorithm and its application on airfoil aerodynamic performance optimization

In order to quickly and accurately obtain and optimize the aerodynamic performance of airfoils, an improved class-shape transformation-based particle swarm optimization (ICST-PSO) algorithm is proposed in this work. The proposed ICST-PSO algorithm is not only used to generate the...

The paradox of government-guided green funds: an exacerbating effect on corporate ESG greenwashing

The government-guided green funds (GGFs) are pivotal policy-oriented financial instruments designed to channel capital toward green development sectors, but their impact on corporate ESG governance remains less explored and warrants in-depth investigation. Using panel data from C...

Transcriptomic and Proteomic Insights into Low Red Light: Far-Red Light Ratios Induced Internode Elongation in Cucumber Seedlings

The ratio of red to far-red (FR) light (the R/FR ratio) is a core signal regulating shade-induced internode elongation in plants, but the underlying mechanism in cucumber remains not fully elucidated. Therefore, in the present study, cucumber (Cucumis sativus L. ‘Zhongnong No. 26...

Static-dynamic triggering mechanisms of rockburst in straight-walled arch roadways under different principal stress orientations and impact disturbances

This study investigates how principal-stress orientation affects impact disturbance triggered rockburst around straight-walled arch roadways. Coupled static-dynamic loading tests were conducted on specimens containing a straight-walled arch opening with orientation angles of 0°,...

Comparative performance of SBR and recycled GFRP in modified asphalt binders and mixtures

Abstract End-of-life glass-fiber-reinforced polymer (GFRP) components require practical recycling routes, while recycled GFRP (RGFRP) can reduce the low-temperature flexibility of asphalt. This study evaluated whether styrene-butadiene rubber (SBR) could offset this limitation in...

Iterative Optimization of Photoactivatable BRD4 Degraders for Aging‐Amplified Immunotherapy in Patient‐Derived Lung Cancer Organoids

ABSTRACT Cancer remains a major global health threat. Targeted protein degradation (TPD) has revolutionized the modulation of protein function in therapeutic development. Nevertheless, the design of current TPD agents continues to face challenges, including hook effects and, more...

Experimental inversion of the convective heat transfer coefficient of a vertical chord grid wire under transverse airflow

Wet chord grids have potential for dust removal, cooling, and condensation dehumidification of hot, humid mine return air, but their coupled models require a dry-wire gas-side baseline. This study applies a four-terminal electrothermal inversion protocol—constant-current Joule he...

Breaking the vicarious trap: two buffers against close others’ environmental influence

Abstract Background Close others' pro-environmental or anti-environmental behaviors can create a vicarious trap: good deeds trigger licensing (reducing one's own effort), and bad deeds induce identification (justifying inaction). However, how this trap can be mitigated remains un...

GeoAgentbench: a dynamic execution benchmark for tool-augmented agents in spatial analysis

The integration of Large Language Models (LLMs) into Geographic Information Systems (GIS) marks a paradigm shift toward autonomous spatial analysis. However, evaluating these LLM-based agents remains challenging due to the complex, multi-step nature of geospatial workflows. Exist...

Dynamic modulation of pressure waveforms on slurry penetration in swirl pulsating grouting: performance evaluation and fluid-mechanical mechanisms

Although dynamic pressure grouting mitigates particle clogging, the mechanisms of different pressure waveforms on slurry penetration remain elusive. This study proposes a swirl pulsating pressure grouting (SPPG) technique and establishes a three-dimensional transient two-phase fl...

All-dielectric grating quasi-BIC for upconversion luminescence enhancement and cryogenic temperature sensing

Upconversion nanoparticles (UCNPs) are limited in their applications in non-contact temperature measurement and biomedicine due to their low luminescence quantum efficiency. Traditional surface plasmon resonance (SPR) structures are restricted in their performance and practical a...

A coupled leaching-settling process driven by phase control for impurity removal and simultaneous valorization of phosphogypsum

Phosphogypsum (PG), the bulk solid waste of wet-process phosphoric acid production, remains underutilized because phosphorus (P) and fluorine (F) impurities restrict its use in building materials, while black impurities lower its whiteness. Conventional purification requires mult...

Breaking the Quality–Throughput Trade-Off: A Chaotic Microreactor Enabling Continuous Synthesis of High-Performance High-Entropy Prussian Blue Analogues

Abstract High-entropy Prussian blue analogues (HE-PBAs) for sodium-ion batteries face a quality–throughput trade-off: slow batch addition suppresses [Fe(CN)6]4– vacancies, whereas faster feeding increases defects and water. We develop a continuous recirculation chaotic microreact...

Arachidonic Acid Enhances Reproductive Performance and Oocyte Quality of Female Blotched Snakehead (Channa maculata) via Activation of the TGF-β/Smad Signaling Pathway

Arachidonic acid (ARA) is an indispensable fatty acid for aquatic organisms, playing critical roles in reproductive physiology. This study aimed to evaluate the effects of graded dietary ARA levels on the reproductive performance, tissue fatty acid profiles, plasma sex hormone an...

Microscopic interactions and wetting behavior at the micro/nano-bubble water-coal interface: experiments and molecular simulations

Coal seam water injection is a key technology for pre-wetting and dust suppression prior to mining, with its effectiveness largely dependent on the wetting capability of water on coal. As a novel wetting medium, micro-nano bubble water (MNBW) has drawn increasing attention due to...

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...

Dual-Factor Mental Health Profiles Among Rural School Teachers in China: Associations With Sociodemographic, Occupational, Health Behaviors, and Psychosocial Factors

This study aimed to identify heterogeneous profiles of school teachers in rural China and to examine whether these profiles differed across sociodemographic, work-related, health behavior, and psychosocial factors. Participants were 513 teachers from rural schools in Hunan Provin...