Xi'an Jiaotong University

Positional Isomerism: A Molecular Switch for Substantial Modulation of Polymer Mechanics

Abstract Positional isomerism, a universal structural regulation strategy in nature, achieves precise control over biological functions through minute variations in substituent positions on a molecular backbone. Despite its extensive application in small-molecule chemistry, the s...

Fuel cell combined cooling, heating and power system: Energy management strategy and multi-objective optimization configuration considering economy and energy efficiency

This study investigates the fuel cell combined cooling, heating and power (FC-CCHP) system, and proposes a novel Following Coordinated Thermal-Electric Load (FCTEL) strategy to overcome the multi-load mismatching defects of conventional FTL and FEL strategies. Simulation results...

Is China’s GDP undervalued? A digital economy model

Abstract Transactions in a digital economy generate data that firms accumulate but national accounts do not price. Within the model developed here, that omission implies measured GDP understates output. We adapt the recursive data-economy framework of Farboodi and Veldkamp (2026)...

Development and validation of the premixing-phase model in the three-dimensional fuel–coolant interaction code SEINA-3D

Premixing during a fuel–coolant interaction determines the three-dimensional melt–water–vapor state available to a subsequent steam explosion. This study develops and validates the premixing-phase model of the three-dimensional fuel–coolant interaction code SEINA-3D. The model ad...

Reversible Fe exsolution enables a single-layer Sr2Fe1.5Mo0.5O6−δ ceramic interconnect for plasma-sprayed segmented-in-series solid oxide fuel cells

Double-perovskite Sr 2 Fe 1.5 Mo 0.5 O 6−δ (SFM) is promising for solid oxide fuel cell (SOFC) electrodes due to good redox stability and high conductivity, yet its performance suffers from phase degradation under strong reduction. Herein, SFM coatings were prepared via atmospher...

Resolving the Sensitivity–Specificity Trade‐Off in Fluorescent Probes via a Tandem‐Activatable Shielding Strategy

ABSTRACT For precise tumor diagnosis, the intrinsic trade‐off between sensitivity and specificity in fluorescent probes remains a longstanding bottleneck, underscoring an urgent need for strategies to break this fundamental constraint. To address the specificity limitation, we ex...

Study on enhancing anti-condensation performance of refrigeration devices at high humidity based on the improvement of interior, exterior and itself of the gasket in the sealing components

The sealing components is essential for isolating the internal cold air of refrigeration devices from the external hot environment. However, its structure currently causes severe cooling capacity loss in the sealing components area, making its outer surface highly prone to conden...

Food security-oriented optimization of rural settlements: coupling GAEZ and PLUS to address cropland productivity loss in Shaanxi, China

Rapid urbanization and rural transformation continue to reshape production and living spaces in rural China. Cropland occupation and reclamation resulting from rural settlement evolution may alter the spatial configuration and production potential of cropland, thereby affecting r...

Resolving the Sensitivity–Specificity Trade‐Off in Fluorescent Probes via a Tandem‐Activatable Shielding Strategy

ABSTRACT For precise tumor diagnosis, the intrinsic trade‐off between sensitivity and specificity in fluorescent probes remains a longstanding bottleneck, underscoring an urgent need for strategies to break this fundamental constraint. To address the specificity limitation, we ex...

Interpenetrating Elastomers for High-Fidelity Shape Recovery and Broad Temperature Energy Dissipation

The design of elastomers integrating high-fidelity shape memory behavior with broad-temperature energy dissipation remains a fundamental challenge due to the intrinsic trade-off between network rigidity and segmental mobility. Here, an interpenetrating polymer network (IPN) strat...

Insights into the role of chemical composition on the precipitation kinetics and properties of L12-strengthened Cu–Ni–Al alloys: A thermodynamic-driven phase field kinetics simulation

Cu–Ni–Al alloys represent a novel class of L1 2 -strengthened Cu-based alloy, offering enhanced thermal stability and high temperature mechanical properties. However, the influence of chemical composition on the precipitation kinetics of the L1 2 phase remains insufficiently unde...

Realization of Reversible Regulation of Thermal Conductivity in 2D Materials through Engineered Acoustic Mismatch

Abstract In modern electronic devices, active control of heat transport is essential for performance and reliability, yet most existing approaches to thermal conductivity modulation are irreversible and fixed after synthesis. Here, we propose a reversible thermal conductivity reg...

MACF1 condensates serve as molecular rheostats translating mechanical stress into bone adaptation

Bone dynamically maintains homeostasis through mechanotransduction, a process essential for skeletal integrity and frequently disrupted in disease. Yet how bone cells decode mechanical cues into adaptive responses remains poorly understood. Here, we identify MACF1, a cytoskeletal...

Multi-Objective and Dynamic Optimization on Fast Charging Strategies for Lithium-Ion Batteries Based on MCC-CV

The widespread deployment of lithium-ion batteries (LIBs) in electric vehicles and energy storage systems urgently requires advanced fast-charging strategies that simultaneously improve charging efficiency and cycle durability. Traditional multi-stage constant-current constant-vo...

Forward self-similar solutions to the MHD-Boussinesq system with Newtonian gravitational field

This paper is concerned with the existence of forward self-similar solutions to the three-dimensional Magnetohydrodynamic-Boussinesq (MHD-Boussinesq) system with a Newtonian gravitational field. By employing a blow-up argument and the Leray-Schauder theorem, we construct a forwar...

A single-ended fault location method based on active boundary control for multi-terminal flexible DC grids

In modular multilevel converter (MMC)-based multi-terminal flexible DC (MTDC) grids, fault current limiting suppresses post-fault electrical transients and weakens available fault characteristics, thereby reducing the sensitivity and reliability of conventional fault location met...

Tiny Pores, Big Stories: Perforating MXenes for Through-Sheet Transport in Energy and Environmental Applications

Conspectus Transport remains a central bottleneck limiting the practical performance of MXene electrodes and membranes. Although MXenes possess metallic conductivity, hydrophilicity, and rich surface chemistry, their two-dimensional (2D) layered architecture imposes barriers to i...

Pulse intensity threshold regulates electroporation Nanodelivery: biological mechanisms and signaling Cascade

Abstract Background Reversible electroporation enhances nanoparticle internalization, but the coordinated regulation of delivery efficiency and cellular responses by pulse parameters remains unclear. This study aims to elucidate the regulatory logic underlying gradient electric p...

Vane detachment in rotary compressors under low-speed conditions: Mechanisms based on mixed lubrication analysis

To ensure comfort and save energy, room air conditioners need to operate under low-temperature cooling and high-temperature heating conditions, under which the rotary compressor often runs at low rotational speeds (below approximately 20 Hz for cooling and 30 Hz for heating). Thi...

Representation of ethnic minorities: visual rhetoric on the covers of Nationality Pictorial (1955–2024)

This article examines the visual representation of ethnic minorities on the covers of Nationality Pictorial (1955–2024), a state-level pictorial in China devoted to minority affairs. Drawing on a longitudinal dataset of 735 covers and a multimodal discourse analysis framework, th...