Yanshan University

Holistic Inside‐Out Reconfiguration of Ni‐Rich Cathodes via a Thermally Self‐Driven Strategy for Exceptional Chemomechanical Stability

ABSTRACT Ni‐rich layered oxides (LiNi x Co y Mn 1− x − y O 2 , x ≥ 0.8) are indispensable for high‐energy‐density lithium‐ion batteries, yet they suffer from severe chemomechanical degradation driven by the synergy of internal microcracking and interfacial parasitic side reaction...

Evidence for heavy iron isotopic enrichment at Earth’s core-mantle boundary

Ocean island basalts exhibit heavier and more variable iron isotopic compositions (δ56Fe) than mid-ocean ridge basalts, but the origin of these signatures remains unresolved. Here we investigate whether Fe-rich ultralow-velocity zones at the core-mantle boundary can provide a dee...

FedBudget: A Budget-Aware Federated Learning Method for Communication-Constrained Distributed Data Mining

Federated learning enables collaborative data mining without centralizing raw data, but communication budgets remain a practical bottleneck in distributed deployment. Existing federated optimization methods mainly address statistical heterogeneity or aggregation stability, while...

Time-domain analysis of fractional-order viscoelastic sandwich plates via shifted Legendre polynomial approach

The objective of this study is to investigate the dynamic characteristics of three-dimensional fractional-order viscoelastic sandwich plates. Based on the fractional Kelvin–Voigt constitutive relation, the governing equations involving the spatial variables $(x,y,z)$ and the temp...

Achieving Synergistic Kinetics and Stability in Li‐Rich Mn‐Based Oxides via AlPO 4 ‐Assisted Multi‐Scale Regulation

ABSTRACT Realizing the full potential of Li‐rich Mn‐based oxides (LRMOs) is contingent upon overcoming the intrinsic conflict between sluggish anionic redox kinetics and structural instability. Conventional modification approaches often fail to harmonize kinetic enhancement with...

Raman Signal Enhancement via High-Power Laser Excitation in a Near-Concentric Cavity for Gas Detection

Raman spectroscopy has emerged as a powerful tool for gas detection due to its label-free operation, molecular specificity, and multi-component analysis capabilities. However, its widespread application is hindered by limited sensitivity, particularly for trace gas analysis. To o...