Southwest Jiaotong University

A unified degrading shear strength model for rectangular and circular solid/hollow RC columns

Reliable quantification of shear strength in the plastic hinge regions of reinforced concrete (RC) columns is crucial for seismic design. However, existing shear strength models often rely on the linear superposition of multiple shear-resisting contributions, an approach that has...

Structural topology optimization of railway vehicle wheel damping plates considering acoustic-vibration interaction

A topology optimization method for railway wheel damping plates is proposed to suppress the acoustic radiation caused by structural vibration, with the acoustic–vibration interaction explicitly taken into account. A configuration optimization framework for damping wheels is const...

InSAR-Derived Surface-Deformation-Constrained Machine Learning for Permafrost Occurrence Probability Mapping in the Eastern Kunlun Mountains

Accurate characterization of permafrost distribution on the Qinghai–Tibet Plateau is crucial for assessing permafrost degradation under climate warming and engineering disturbances, as well as its potential implications for cold-region infrastructure stability. However, statistic...

Major-axis flexural buckling behavior of welded ultra-high-strength steel I-section members

The increasing application of ultra-high-strength steel (UHSS) in high-rise buildings and long-span structures demands a thorough understanding of its structural behavior. This paper presents the systematic study on the major-axis flexural buckling behaviour of Q1100 ultra-high-s...

Instability mechanism and failure mode identification of axially loaded CFST columns under lateral impact: A modified 2-DOF approach

Concrete-filled steel tube (CFST) columns are exposed to accidental lateral impact hazards. The instability-driven fracture mechanism under high axial load or intense impact remains unclear, and the quantitative method for identifying instability failure is lacking. To fill this...

Orthotropic plate buckling method for the design of stainless steel structures manufactured by wire-arc directed energy deposition

Wire-arc directed energy deposition (DED-Arc) offers significant advantages for manufacturing stainless steel plates, but the inherent material anisotropy of DED-Arc stainless steel challenges the isotropic assumptions underlying current design standards (e.g., AISC 360, EN 1993-...

MMP-9–responsive stealth-to-activation liposomes enable tumor-selective PD-L1 degradation via dual-PEG shedding

Abstract PD-1/PD-L1 blockade benefits patients across > 20 cancer types, yet durable responses remain limited and antibody therapies only transiently engage the axis while causing systemic immune-related adverse events. We report lipoRDPA, a rationally designed liposomal degrader...

An automated machine-vision method for coarse aggregate gradation measurement using attention-based instance segmentation

Aggregate gradation is a key indicator influencing the mechanical performance of concrete structures. To enhance the efficiency of concrete aggregate gradation detection, this study proposes an artificial intelligence-based automated coarse aggregate gradation detection method ba...

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-...

Seismic Signal Denoising via RRTO-Optimized VMD Combined with Spectral Kurtosis and Enhanced Wavelet Packet Thresholding

Abstract Seismic signal denoising is a key link to improve the interpretation accuracy of seismic data, especially in the complex noise background, where random noise and coherent noise will seriously interfere with the identification and extraction of effective signals. To this...

Transverse seismic performance and fragility analysis of shield tunnels considering different internal structural configurations

The influence of internal structures on the seismic behavior and damage mechanisms of large-diameter shield tunnels remains insufficiently quantified in existing fragility studies. This study develops a refined three-dimensional numerical framework incorporating soil–structure in...

Progress in assessing wind loads on roof-mounted solar panels: Research and standards

This paper provides a comprehensive review of existing literature and current wind code and standard provisions related to wind effects on roof-mounted photovoltaic systems, with particular emphasis on tilted PV arrays installed on flat or nearly flat roofs, which form the basis...

Beam layout design in shear wall structures using a diffusion model guided by rule-based masks

Serving as critical load supports and transfer components in shear wall structures, beams require layout designs that balance mechanical rationality with architectural functionality constraints. Conventional design methods, which rely on engineers' expertise, are challenging to s...

Dual‐Channel Event‐Triggered Model‐Free Adaptive Control for Discrete‐time Nonlinear Networked Control Systems

ABSTRACT In this article, a novel dual‐channel event‐triggered model‐free adaptive control (DCET‐MFAC) algorithm is investigated to solve the tracking control problem for nonlinear networked control systems (NCSs). Two independent event‐triggered mechanisms (ETMs) are designed wi...

Microstructure density engineering via sandpaper templating for high-performance PTFE/PDMS triboelectric nanogenerators

A microstructure-density engineering strategy is proposed to enhance triboelectric nanogenerator performance using sandpaper-templated PTFE/PDMS triboelectric layers and MXene-AgNWs electrodes. By optimizing sandpaper grit and tribo-layer thickness, the charge transfer and storag...

Impact of the impregnation method on the volumetric behaviour of vermiculite–CaCl2 composites under packed-bed cycling for thermochemical energy storage

Thermochemical energy storage (TCES) based on salt hydrates offers high energy density and negligible standby losses. However, repeated hydration–dehydration in packed beds can cause salt redistribution, pore restructuring, and substantial changes in settled packed volume, which...

Shear Stress-Triggered Piezo-Photocatalytic Thrombolysis, Self-Luminescent Thrombus Imaging, and Recurrence Prevention

Abstract Thrombotic diseases continue to pose substantial global harm, with high morbidity and mortality rates. Existing theranostic systems for thrombosis face significant risks such as bleeding complications, rapid clearance of therapeutic and imaging agents, and recurrence of...

Strain-Induced Enhancement of Thermal Conductivity of Monolayer NiI2 via Suppressed Spin-Phonon Coupling

Abstract Strain engineering provides a versatile route for continuously tuning thermal conductivity. In this work, using spin-polarized density functional theory in conjunction with the phonon Boltzmann transport equation, we reveal that a small biaxial tensile strain can signifi...

Coordination‐Driven Neutralization of SnO 2 Colloids for Suppressing Buried Interfacial Deprotonation in Perovskite Solar Cells

ABSTRACT Commercial SnO 2 colloidal solutions are widely used as an electron transport layer (ETL) in perovskite solar cells (PSCs). However, their intrinsic strong alkalinity, required for colloidal stability, creates a high proton‐affinity SnO 2 /perovskite interface that promo...

A convolutional autoencoder network based on multi-dimensional spatial feature reconstruction for anomaly detection of rotating machinery under complex operating conditions

Rotating machinery is critical equipment in industrial systems, and its operational status directly impacts production safety and equipment reliability. Due to complex operating conditions, continuous operation, and environmental disturbances, rotating machinery is prone to failu...