Xi'an Jiaotong University

Coupled Utilization of Geothermal Energy and Thermal Energy Storage: Current Technologies and Future Prospects

Temporal mismatches between geothermal output and user demand limit resource utilization, whereas thermal energy storage (TES) can decouple heat production from consumption. This review organizes geothermal–TES coupling by resource depth and answers four engineering questions. Fi...

Operating Characteristics of Diaphragm Compressors in Hydrogen Refueling Stations Based on Actual Operational Data

With the rapid development of the hydrogen energy industry, hydrogen refueling stations have become a critical component of hydrogen infrastructure, and the operational performance of their core compression equipment directly affects the safety and reliability of the entire stati...

Linking molecular composition of organic aerosols to reactive oxygen species formation using an MCR-VK framework

Abstract. Reactive oxygen species (ROS) formation by atmospheric fine particulate matter (PM) is widely implicated in adverse health effects, yet the molecular determinants of particle-level ROS formation remain poorly constrained, largely due to the chemical complexity of organi...

Evolution of Viscoelasticity in a Reversibly Photo-Cross-Linked Elastomer Network

Abstract Network topology and chain mobility govern the viscoelastic response of dynamic polymer networks, yet their evolution during reversible cross-linking remains poorly understood. Here, a UV light-responsive polyurethane containing anthracene moieties is developed to constr...

Local-to-rack-scale temperature responses of sodium heat pipes inserted into industrial graphitization-furnace insulation

Post-shutdown cooling of industrial graphitization furnaces is constrained by the large thermal inventory and low conductivity of packed petroleum-coke/graphite insulation. This study examines the local-to-rack-scale thermal response produced when sodium high-temperature heat pip...

Decoupling Stable Cyclic Deformation From Defect Accumulation in Metals

ABSTRACT Fatigue resistance in metals is fundamentally constrained by a long‐standing dilemma: the strain hardening required to suppress deformation localization is typically achieved through the accumulation of dislocations and other defects that ultimately promote fatigue damag...

Row–Column Addressable Monolayer Graphene/SiO2/Si Heterostructure Array for Visible-to-Near-Infrared Imaging with Suppressed Dark Current

Abstract Image sensor arrays built from two-dimensional (2D) materials are emerging as enablers of next-generation optoelectronic systems, yet their development has been constrained by the lack of readout architectures specifically tailored to atomically thin channels. Here, we d...

Energy Policy and Energy Management in China: Governance Logic and Future Pathways of Structural Transformation

China’s energy policy and management are transitioning from scale expansion to systemic restructuring. During the 14th Five-Year Plan period (2021–2025), renewables accounted for approximately 60% of installed capacity, and the Energy Law took effect. Entering the 15th Five-Year...

Solar-driven photocatalytic air purification for road infrastructure: Pollutant dynamics, material integration, and sustainable engineering

Road infrastructure provides a scalable platform for integrating photocatalytic technologies to mitigate urban air pollution. However, practical deployment remains uncertain because pollutants in road environments show substantial diversity and dynamic variation in their emission...

Influence of liquid film in star wheel tip clearance on dynamic characteristics of single screw compressor

The liquid film in the tooth tip clearance plays a critical role in reducing wear and sealing gas leakage in a single-screw compressor, yet its influence on shaft system dynamics has not been systematically quantified. In this paper, a comprehensive mathematical model of the liqu...

When digital meets green: How technological convergence drives eco-innovation in Chinese firms

The convergence of digital and green technologies (DGT) is emerging as a key driver of low-carbon transformation, yet its effects on eco-innovation remain understudied. Using matched micro-enterprise data and highly granular patent data from 2010 to 2023, we employ co-classificat...

Two-Scale Exponential Integrators with Uniform Accuracy for Three-Dimensional Charged-Particle Dynamics Under a Strong Magnetic Field

Abstract. The numerical simulation of three-dimensional charged-particle dynamics (CPD) under a strong magnetic field is a basic and challenging algorithmic task in plasma physics. In this paper, we introduce a new methodology to design two-scale exponential integrators for three...

Channel two-phase flow validation and dynamics in proton exchange membrane fuel cells under water-boiling-point temperature conditions

With the growing demand for green energy, proton exchange membrane fuel cells (PEMFCs) have developed worldwide. Increasing the operating temperature to the water-boiling-point range (100–120 ℃) can significantly enhance the heat dissipation capacity, but it induces more complex...

Research Progress in Metal–Support Interactions for Enhancing the Catalytic Oxidation of Formaldehyde

This review focuses on environmental catalysis, specifically the catalytic oxidation of indoor formaldehyde (HCHO) over noble metal–supported catalysts under ambient conditions, rather than on process catalysis for chemical synthesis or industrial process optimization. Noble meta...

Antiferrodistortive Matrix Engineering Reprograms Polarization Pathways for Ultrahigh Energy Storage at Moderate Electric Fields

ABSTRACT Relaxor ferroelectrics (RFEs) are promising dielectric materials for pulsed multilayer ceramic capacitors because of their rapid polarization response. However, under practical electric fields, polarization rapidly approaches saturation as polar nanoregions exhaust their...

Numerical Investigation of the Effects of Temperature-Dependent Permittivity and Space-Charge Transport on the Electric-Field Distribution in the Oil–Paper Insulation of an Oil-Immersed Transformer

To investigate the effects of the thermal state under rated operation and space-charge transport on the electric-field distribution in oil–paper insulation, a sequentially coupled multiphysics model is developed for a 30 kVA single-phase three-limb oil-immersed transformer. The n...

Enhanced Acoustic Adhesion Enabling Agile and Small Wall‐Climbing Robot Design With Anisotropic Origami Structure

ABSTRACT Small inspection robots are highly desirable for detecting damage within confined spaces. By vibrating a disk on a surface, a thin air layer with negative pressure—known as acoustic adhesion—is generated, which offers a strategy for creating compact yet strongly climbing...

A topology-regulated stochastic pore reconstruction for graphite foam: Morphological validation and transport property prediction

Digital reconstruction of graphite foam requires reconciling the parametric controllability of periodic unit cell models with the morphological fidelity of image derived geometries. Porosity and pore size statistics alone do not uniquely determine the connectivity, window geometr...

Unified Physics-Guided Discovery of Ultrahigh- and Ultralow-Thermal Conductivity Two-Dimensional Materials

Abstract As thermal management approaches the low-dimensional limit in post-Moore electronics, two-dimensional (2D) materials offer a versatile platform for engineering lattice thermal conductivity (κL). However, a unified framework capable of discovering both ultrahigh- and ultr...

FMFNet: Frequency-Aware multi-scale attention with fine-grained feature fusion for sonar image semantic segmentation

Sonar image semantic segmentation is a challenging task due to low contrast, severe speckle noise, and blurred object boundaries, which constrain the representation capability of purely spatial-domain convolutional features. This paper proposes FMFNet (Frequency-Aware Multi-Scale...