Xuan Chen

AI-driven assessment in higher education: a systematic review

Z M Jin, X. R. Li, Xuan Chen, He Zhang et autres

The rapid advancement of artificial intelligence (AI) is reshaping the concepts and practices of assessment in higher education. Despite the growing body of empirical research, there remains a lack of systematic understanding of the developmental trends, core functional applications, and broader impacts …

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Nonlinear Impact of Population Shrinkage on Urban Ecological Resilience: A Threshold Effect Analysis Based on City-Level Panel Data from the Yangtze River Economic Belt, China

Xuan Chen, Yuluan Zhao, Chunfang Zhou, Yonglong Cai

In the context of rapid urbanization and demographic transition, the implications of population shrinkage for urban sustainable development have attracted increasing scholarly attention. Nevertheless, empirical evidence on the relationship between population change and urban ecological resilience remains limited. Drawing on the Pressure–State–Response …

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Global polynomial synchronization and stability of discrete-time inertial neural networks with proportional delays and its application to image encryption

Fengzhao Wang, Xingjian chen, Cheng Yang, Xuan Chen

This paper investigates global polynomial synchronization (GPS) of discrete-time inertial neural networks with proportional delays (PD-DTINNs). A discrete-time model is formulated on the sampling grid $ \hslash k $, where the proportional-delay state is directly represented by $ x_j(\lfloor \mathfrak {p}_{j}k \rfloor …

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Impact of Human Capital Accumulation on New-Type Urbanization in the Context of Large-Scale Population Mobility: A Case Study of the Mountain Cities in Guizhou Province

Xing Guo, Xudong Li, Xuan Chen, Zhiwen Yang et autres

With the large-scale population flow between regions and the gradual disappearance of the “demographic dividend,” promoting the accumulation of higher education human capital and leveraging the “talent dividend” have become the important driving forces for the development of new-type urbanization. Therefore, understanding …

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Mechanistic insights into the versatile stoichiometry and biased signaling of the apelin receptor-arrestin complex

Yang Yue, Chanjuan Xu, Lijie Wu, Man Na et autres

The apelin receptor (APJR) plays a pivotal role in regulating cardiovascular and metabolic health1,2. Understanding the mechanisms of biased agonism at APJR is crucial for drug discovery, as stimulation of the β-arrestin pathway may lead to some adverse effects3. Structural analyses of …

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Polarization direction dependent single-atom catalysis on transition metal-doped In₂Se₃ for OER and ORR

Yang Luo, Wenjun Xiao, Jinshun Bi, Abuduwayiti Aierken et autres

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Revealing the role of surface reconstruction and charge redistribution in M1M2-N4-Grs for bifunctional oxygen electrocatalysts

Yao Chen, Xuefei Liu, Gaofu Liu, Gang Wang et autres

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Polarization Direction Dependent Single-Atom Catalysis on Transition Metal-Doped In2se3 for Oer and Orr

Yang Luo, Wenjun Xiao, Jinshun Bi, Abuduwayiti Aierken et autres

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Efficient Bifunctional Electrocatalysts for Oxygen Evolution/Reduction Reactions in Two-Dimensional Metal–Organic Frameworks by a Constant Potential Method

Jin Zhong Yu, Tianyun Liu, Xuefei Liu, Wei Deng et autres

The evolution of bifunctional catalysts for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) catalysts that are highly active, stable, and conductive is crucial for advancing metal-air batteries and fuel cells. We have here thoroughly explored the OER and ORR …

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Emerging Advances in Lanthanide Photon Avalanche Nanophotonics

Chang Xin Liu, X Q Zhang, Xuan Chen, Liangliang Liang

Photon avalanche (PA) upconversion in lanthanide nanosystems represents a groundbreaking discovery, demonstrating an optical nonlinearity exceeding 50. This remarkable sensitivity to even the slightest light perturbations unlocks new possibilities for ultrasensitive biosensing, super-resolution imaging, and a range of other applications. This review …

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High-throughput screening of the oxygen reduction/evolution reactions catalyst supported on covalent organic framework doped by main group metal using a constant potential method

Yu Jin, Daoxiong Wu, Wenjun Xiao, Gang Wang et autres

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The Synergy of the Electric Polarization and Built-In Electric Field for Efficient OER/ORR Supported on 2D Ferroelectric TM-Gr@Ga2O3 Heterojunctions Using Constant-Potential Methods

Xiangyu Wu, Xuefei Liu, Wei Yuan Deng, Wenjun Xiao et autres

The pursuit of efficient oxygen reduction and evolution reactions (ORR/OER) using non-noble-metal catalysts is a coveted goal, yet it presents considerable challenges. In this study, we utilize first-principles calculations to engineer heterojunctions by integrating Ga 2 O 3 monolayers with transition metal-doped …

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