Xi'an Jiaotong University

Anti-Ramsey number of intersecting cliques

An edge-colored graph is called a rainbow graph if all its edges have distinct colors. The anti-Ramsey number a r ( n , G ) , for a graph G and a positive integer n , is defined as the minimum number of colors r such that every exact r -edge-coloring of the complete graph K n con...

Bingeing on Daydreams: Identity Negotiation Among Micro-Drama Viewers in a Chinese Tier-3 City

This study examines how frequent micro-drama viewers in a Chinese tier-3 city negotiate identity through binge-watching so-called daydream-style micro-dramas. Drawing on experience sampling, in-depth interviews, and 4,189 online comments, the analysis identifies four identity pos...

Achieving breakthrough high strength in AZ31 magnesium alloy bar via a novel single-pass extrusion process

AZ31 magnesium alloy generally suffers from insufficient room-temperature strength. Meanwhile, conventional processing routes offer limited strengthening efficiency, and severe plastic deformation (SPD) processes face difficulties in industrial upscaling. To address these bottlen...

Industrial robot fault detection and diagnosis for intelligent maintenance: A review of data, methods, and emerging trends

Industrial robots are widely used in intelligent manufacturing due to their high efficiency, flexibility, and repeatability. However, long-term operation under complex working conditions inevitably leads to performance degradation and various faults across mechanical, transmissio...

Coupling CO2 Capture with Organic Pollutant Removal in an Integrated Indoor Air Treatment System

Abstract Indoor air pollution due to elevated CO2 levels and the presence of volatile organic compounds (VOCs) and biological agents is increasingly considered as a major health concern. Current strategies to ventilate buildings are mainly oriented at CO2 levels, although the imp...

Micromechanical Properties and Deformation Behavior of the Co70Fe3Mn3.5Mo1.5Si11B11 Amorphous Alloy

This work reports an experimental study of the micromechanical properties of the Co70Fe3Mn3.5Mo1.5Si11B11 (at. %) amorphous alloy. All experiments were performed at room temperature on the unannealed sample in order to avoid the influence of thermally induced structural relaxatio...

Mechanistic analysis of silver leaching from c-Si solar cells using an acetamide-based deep eutectic solvent

An efficient medium for silver (Ag) recovery from end-of-life crystalline silicon (c-Si) solar cells should combine strong Ag reactivity with limited co-extraction of non-target metals and good reusability. In this study, an acetamide-based deep eutectic solvent (DES) composed of...

Surface roughness prediction in milling process using an interpretable physics-informed Swin Transformer framework

Surface roughness is a core indicator for evaluating machining quality, thereby necessitating accurate prediction and control within milling operations. Nevertheless, conventional physical models often rely on idealized assumptions to simplify the modeling process, resulting in i...

Lithiophilic Covalent Organic Framework-Bridged Interface Enables Fast Ion Transport in Ultrathin Gel Polymer Electrolyte Membranes

Abstract Gel polymer electrolytes (GPEs) require a homogeneous polymeric structure, processability, and excellent chemical stability for high-performance lithium metal battery configurations. However, heterogeneous electrolyte polymerization, which constrains ion transport, limit...

VMD-Assisted DGCM-Net: A Dual-Representation Cross-Interaction Network with Multi-SNR Training for Transformer Core Looseness Diagnosis

Vibration-based diagnosis can identify transformer core looseness non-intrusively, but subtle vibration differences and noise-disturbed Gramian angular field (GAF) textures reduce diagnostic accuracy at low signal-to-noise ratios (SNRs). This paper proposes a variational mode dec...

Output Matching Model Reduction for Discrete‐Time Singular Systems With High Index

ABSTRACT In this paper, a new model order reduction approach is presented for reducing large‐scale discrete‐time singular systems with higher index. Based on the regularity of the singular system, the singular system is decomposed into a non‐singular subsystem and a singular subs...

Hydraulically Coupled Compressed-Air Energy Storage Systems: A Review of Configurations and Performance with Emphasis on PHCAES

Growing wind and photovoltaic generation increases the demand for large-scale, long-duration energy storage. Pumped hydro compressed-air energy storage (PHCAES) stores and releases energy through pressure transfer between water and compressed air, using air pressure to provide an...

Sexual health and healthy aging: the five ‘I’s conceptual framework

Sexual health remains important throughout life, including in older age. This special collection shows that older adults need respectful, inclusive, and culturally appropriate sexual health services. The five ’I’s framework – importance, individuality, inclusion, involvement, and...

Historical Mineral Dependence and Carbon-Intensity Co-Movement with Industrial-Metal Market Conditions in Asian and Pacific Economies

The low-carbon transition is increasingly mineral-intensive, raising the question of whether industrial-metal market conditions coincide with different carbon-intensity adjustments across inherited mineral structures. We examine 45 Asian and Pacific economies over 2005–2022 (756...

High-precision temperature-strain composite sensing based on a single resonator-type surface acoustic wave sensor using machine learning algorithms

Surface acoustic wave (SAW) sensors are extensively employed for temperature/strain measurement. However, precise temperature/strain sensing remains challenging under complex conditions involving simultaneous mechanical strains and temperature fluctuations, due to the inherent cr...

Fabrication and performance characterization of a phase-change thermal diode using scaly-finned fibers as the wick

Efficient unidirectional heat transfer is of paramount importance in applications such as satellite thermal control systems and large-scale data centers, where conventional phase-change heat transfer devices exhibit inherent limitations. In this study, a novel phase-change therma...

Machine Vision-Based Smart Basketball System and Hardware Implementation

To address the challenge of acquiring basketball shooting parameters in a non-contact and quantitative manner, this paper proposes a machine-vision-based prototype system for intelligent basketball shooting feedback. The system constructs a basketball-and-hoop detection dataset f...

Hierarchical Sparse-Routing-Enabled Mamba Scanning for Tire Pattern Recognition

To tackle the challenging representation problem of fine-grained tire tread patterns, we present a hierarchical sparse-routing-enabled multi-mode multi-directional Mamba (HSR-Mamba) scanning framework for tire pattern recognition to improve performance, and it mainly consists of...

Y and Zn co-doped Ba(Fe,Zr)O3−δ perovskite: A cobalt-free oxygen electrode material for the high-stable proton ceramic electrochemical cells

Developing active and durable oxygen electrodes for both oxygen reduction and oxygen evolution reactions at low temperatures remains a major challenge for proton ceramic electrochemical cells (PCECs). Herein, a cobalt-free Y and Zn co-doped Ba(Fe,Zr)O 3−δ perovskite (BFZYZ) is de...

Coffee, the Gut Microbiome, and Host Metabolism: Gastrointestinal Fate, Microbial Transformation, Mechanistic Insights, and Prospects for Precision Nutrition

Coffee is one of the most widely consumed beverages worldwide and a major dietary source of bioactive compounds, including caffeine, chlorogenic acids (CGAs), trigonelline, non-digestible polysaccharides, and roasting-derived melanoidins. Habitual coffee consumption has been asso...