Chongqing Jiaotong University

A Consecutive Missing-Data Recovery Method for Bridge Health Monitoring Based on an ICEEMDAN-PE-LSTM-Informer Hybrid Model

Accurately reconstructing consecutive missing measurement segments presents a major challenge in bridge structural health monitoring, due to the inherent complexity and non-stationary nature of the collected signals. To address this, a hybrid data recovery framework is developed...

Can digital-real integration effectively curb urban sprawl? Evidence from China using double/debiased machine learning

Urban sprawl (URS) has become a major challenge to China’s sustainable development under the backdrop of rapid urbanization. Digital-real integration (DRI) provides a new pathway for urban spatial governance, yet its concrete impacts and mechanisms remain insufficiently tested. B...

Thermal–hydraulic design and multi-objective optimisation of a cicada-wing-vein-inspired liquid cooling plate for lithium-ion battery thermal management

To improve the thermal safety and temperature uniformity of lithium-ion batteries under high-rate discharge, a cicada-wing-vein-inspired liquid cooling plate with hierarchical branching and lateral interconnections was developed. Three channel configurations, including rectangula...

Freezing performance of selective artificial ground freezing based on three-pipe structure and its influencing analysis

Selective artificial ground freezing (S-AGF) enables directional cooling and mitigates unnecessary thermal loss through air-insulated casings, thereby exhibiting superior energy-saving and stratum-protection performance relative to conventional artificial ground freezing (C-AGF)....

Coupled Effects of Filler Aspect Ratio and Interfacial Characteristics on the Mechanical/Thermal/Electrical Properties of Graphene Nanocomposites

ABSTRACT Owing to interfacial defects and filler‐size effects, mechanical/thermal/electrical experimental performances of graphene‐reinforced polymer nanocomposites frequently deviate greatly from theoretical predictions. This study develops a cross‐scale multi‐physics effective...

Hollow Silica/PUU Composites for Flame Retardancy and Blast Mitigation: From Shock Tube to In Vivo Protection

Abstract Blast shock waves and the resulting thermal burns from secondary fires are among the primary causes of casualties in explosions, underscoring the significance of developing protective materials that simultaneously deliver efficient shock wave attenuation and flame retard...

Flexural fatigue performance of flat steel plate-concrete composite bridge deck

The flat steel plate-concrete composite bridge deck (FSPCCD) is composed of a steel plate module and a concrete slab. The load bearing capacity, flexural stiffness, deformability, and construction efficiency of the bridge deck are significantly improved. In this paper, a total of...

Sensitivity of Satellite-Derived Gross Primary Productivity to Environmental and Canopy Inputs in a Subtropical Mangrove Forest

Accurate estimates of mangrove gross primary productivity (GPP) are needed to quantify coastal carbon dynamics, but the performance of satellite-based GPP models in mangrove forests remains uncertain. We compared eight models—four light-use-efficiency models (MOD17, EC-LUE, VPM,...

Biaxial response of buried pipelines to arbitrary excavation-induced ground-movement fields: A pipe–soil interaction solution with Bayesian updating from sparse field settlement monitoring

Ground movements induced by deep excavation impose simultaneous vertical and horizontal deformation on adjacent pipelines. Excavation pipeline solutions commonly prescribe a specific movement function, and field monitoring generally provides sparse settlement data. This study dev...

Seismic performance of bolted L‐shaped column‐base joints: Experimental study, numerical modeling, and design approach

Abstract L‐shaped columns have emerged as a practical load‐bearing structural scheme in industrial construction, as they effectively enhance space utilization within building layouts. Conventional cast‐in‐place L‐shaped column‐base joints often suffer from low construction effici...

Secure Recommender Systems: A Co-evolutionary Survey of Vulnerabilities, Attacks, and Defenses

Recommender systems (RS) increasingly mediate what users see, buy, and believe, making them attractive targets for malicious manipulation. As RS have progressed from traditional collaborative filtering to deep learning and, most recently, LLM-driven designs, the landscape has co-...

Satellite-derived turbidity dynamics reveal sediment regulation by the Three Gorges Dam and large river-connected lakes in the Yangtze River

Study Region The Yangtze River is a large regulated river system with pronounced variations in hydrology, sediment transport, and river–lake interactions. This study focuses on the mainstem from Yibin to Shanghai, particularly reaches influenced by the Three Gorges Dam (TGD), Don...

An identification and classification framework for bridge cracks using transposed convolution-CBAM-Segformer with transfer learning

Bridge cracks seriously affect structural bearing capacity, durability and traffic safety, making accurate and efficient crack detection essential for bridge maintenance. To address the problems of feature degradation and upsampling information loss in existing segmentation model...

Does public transport fare discount policy affect travel choices of the elderly? An empirical study based on Chongqing, China

As population aging accelerates, public transport fare discounts have become a crucial tool for cities to address the mobility needs of the elderly. This study aims to optimize such policies by examining the psychological decision-making process of elderly bus users, using survey...

Experimental investigation and prediction models for vibration-flow coupled scour around pile-bucket foundations

The pile-bucket foundation, which integrates the benefits of monopile and bucket designs, offers enhanced bearing capacity and deformation control, making it suitable for large-capacity offshore wind turbines. However, its scour behavior under coupled vibration-flow remains poorl...

Evaluating the impact of mainline slope on temperature distribution in a branched tunnel fire: An experimental study and theoretical model analysis

Smoke and heat transport in branched tunnel fires become more complex when an inclined mainline is subjected to longitudinal ventilation. This study conducted 1:20 reduced-scale experiments to investigate the maximum ceiling temperature rise and temperature longitudinal decay in...

Automated Compliance Checking for BIM Models via a Large Language Model–Driven BIM-to-Text Paradigm

Abstract Automated compliance checking (ACC) for building information modeling (BIM) is a vital task in the architecture, engineering, and construction (AEC) industry. However, significant semantic gaps among Industry Foundation Classes (IFC) schemas, regulatory texts, and logica...

Influences of tunnel radius on minimum overburden thickness for underwater shield tunnels crossing structural planes

To ensure the stability and cost-effectiveness of underwater shield tunnels, reasonable design of the minimum overburden thickness is required. Nevertheless, how to rationally determine this thickness remains unclear when the coupled effects of rock structural planes and tunnel r...

Sustainable Electrosynthesis of Value-Added Ammonia and 5,5′-Azotetrazolate Energetic Materials Enabled by Bifunctional Cu–Fe3O4 Heterostructures

Abstract Conventional ammonia electrosynthesis via the nitrite reduction reaction (NO2RR) is generally paired with the anodic oxygen evolution reaction (OER). However, the intrinsically sluggish kinetic of the OER severely limits the overall energy efficiency of such electrolysis...

Establishing inherent deformation database for Q355 steel T-joints in stiffened panels by numerical approach and artificial neural network

The typical welding joints in stiffened panels are generally subjected to different structural restraint conditions, and the welding processes applied to individual joints may also vary to some extent. Consequently, inherent deformations may differ among joints within a given str...