Changsha University of Science and Technology

Experimental and molecular simulation study on compatibility and interaction in hybrid plastic–rubber modified asphalt

The application of plastics in asphalt pavements has attracted considerable attention due to its potential environmental and engineering benefits. However, the type and properties of hybrid plastics are critical to the compatibility of modified asphalt. In this study, Rubber–plas...

Seismic behavior of circular steel tube confined reinforced concrete column-steel beam frames considering the joint effect

Reliable beam-column joints and rational design methods are crucial to ensure the safety and economy of frames, particularly for steel-concrete composite structures. This study numerically investigates the seismic behavior of the frame consisting of circular steel tube confined r...

Has the Growth of the Platform Economy Narrowed the Urban–Rural Income Gap? Implications for Sustainable Development and Common Prosperity in China

Under the ‘new normal’ of economic growth, the platform economy has expanded rapidly, creating entrepreneurial and employment opportunities while exerting novel influences on the urban–rural income gap. Using balanced panel data from 288 Chinese prefecture-level cities (2010–2024...

Multi-state switching of topological magnetic textures via enhancing ferroelectric polarization in van der Waals multiferroic heterostructure LaBr/In2Se3

Topological magnetic textures hold great promise for non-volatile memory applications, owing to their topological stability and low energy consumption. Conventional manipulations focus on the creation/annihilation of one topological state or switching between two states, however,...

Electrospun Carbon Nanofiber–TiN Composite Interlayers for Improved Cycling Stability and Rate Capability of Lithium–Sulfur Batteries

Lithium–sulfur (Li-S) batteries offer a high theoretical energy density of 2600 Wh·kg−1 and a theoretical specific capacity of 1675 mAh·g−1; however, their practical application is severely hindered by the shuttle effect of soluble lithium polysulfides, the intrinsic electronic i...

Resolving Proton Diffusion Kinetics in Electrolytic Hydrogen Evolution

Abstract Although the hydrogen-bond network within the electrical double layer (EDL) is crucial for proton diffusion in the hydrogen evolution reaction (HER), its exact role remains controversial. This debate stems from the experimental difficulty in determining the proton diffus...

An attention-enhanced residual network framework for structural damage detection based on structural health monitoring data

Local damage in steel structures often produces only subtle differences in vibration responses, and measurement noise can further reduce identification robustness. To address these challenges, this study proposes a structural damage identification method that combines Markov tran...

Existence of Strong and Ground State Solutions for a Class of Euclidean Bosonic Equations Involving a Composite Fractional Operator

ABSTRACT In this paper, we study nonlinear Euclidean equations involving the composite fractional pseudo‐differential operator , where , are positive parameters and stands for the identity operator on . We here look to the solvability of such equations. Thus, we first show that e...

A Multidomain Feature Fusion–Based GRU-Transformer Framework for Damage Identification of Truss Bridges

Abstract In complex operational and environmental conditions, structural vibration signals are typically characterized by inherent non-stationarity and nonlinearity. Traditional convolutional neural networks (CNNs) with single-feature extraction struggle to comprehensively captur...

Study on the Strength Characteristics of Frozen Salt-Rich Red Clay

Abstract In low-temperature environments, water and sulfates in red clay crystallize into ice and salt crystals, respectively, triggering a synergistic effect of frost heave and salt heave. Saturation and salt content significantly influence the strength and structural evolution...

Digital twin-driven cross-domain damage identification for experimental cable-stayed bridge models under sparse sensing

Reliable damage identification is paramount to structural integrity and operational safety of infrastructure. However, conventional structural health monitoring (SHM) methods often encounter implementation bottlenecks, primarily constrained by data labeling and the inherent discr...

Analyzing the Key Influencing Factors of Contractors’ Environmentally Responsible Behavior in Megaprojects: A Social Network Analysis

Abstract In the context of environmental governance in megaprojects, contractors’ environmentally responsible behavior (ERB) plays an increasingly critical role. Previous studies have focused primarily on identifying individual factors influencing such behavior, but they have lar...

Confronting Biodiversity Risk: Its Role in Shaping Corporate External Financing Choice

ABSTRACT This paper investigates how biodiversity risk shapes corporate financing decisions. We propose a Financing Hierarchy Distortion framework, arguing that biodiversity risk amplifies information asymmetry and legitimacy costs, thereby pushing firms toward debt‐heavy adjustm...

Research on the Dynamic Evolution of Optical Fiber Excess Length and Icing Monitoring for In-Service Power Optical Cables in Extremely Cold Environments

In extremely cold regions, OPGW optical cables are prone to anomalies due to icing, especially when their internal fiber length is easily depleted, which then seriously affects the normal operation of the entire power communication system. Therefore, this paper proposes a nonline...

Risk-aware hierarchical reinforcement learning for investment and operations in cross-border energy supply chains under the belt and road initiative

Abstract Cross-border energy supply chains under the Belt and Road Initiative (BRI) face unprecedented challenges, including geopolitical instability, macroeconomic volatility, and operational disruptions. Traditional optimization or flat reinforcement learning (RL) methods often...

Experimentally validated reduced-order modeling of gear-rotor-bearing systems with three-dimensional shaft compliance and gyroscopic mapping

Traditional one-dimensional beam models cannot adequately represent the three-dimensional local compliance of stepped transmission shafts, whereas full solid models are inefficient for system-level nonlinear simulations. This study proposes a high-fidelity reduced-order model for...

Seismic control of two adjacent structures connected by an energy dissipation enhanced torsional eddy current damper: Optimum design and performance analysis

As urban space becomes increasingly constrained, structural spacing is often minimized within code-permitted limits, making closely spaced adjacent structures increasingly common. Under earthquakes, however, large relative motions between adjacent structures can increase the pote...

An organic additive strategy for high-performance and durable alkaline zinc/ferricyanide flow batteries

Alkaline zinc/ferricyanide flow batteries (AZFFBs) offer high safety, high energy density, and lower cost, but their long-term reliability is hindered by zinc dendrite growth and parasitic reactions on the anode. Here we show that monosodium glutamate (MSG) acts as a multifunctio...

Influence of coarse aggregate meso-fabric on dynamic modulus of porous asphalt mixtures: An X-ray CT voxel reconstruction approach

Coarse aggregate contacts and orientations govern load-transfer paths in porous asphalt (PA) mixtures, yet their respective relationships with dynamic modulus (| E *|) remain unclear. Industrial X-ray computed tomography (X-CT) and digital image processing were used to reconstruc...

Tensile stress–strain behavior and microstructure of PVA fiber‐reinforced geopolymer composites modified by nano‐ SiO 2

Abstract With the rapid development of green and low‐carbon construction materials, engineering geopolymer composites (EGCs), characterized by high strength, superior toughness, and excellent durability, have attracted increasing attention. However, achieving a synergistic enhanc...