Shandong University of Science and Technology

Preparation and Characterization of Composite Phase Change Materials Based on Enhanced Thermal Conductivity of Silicon Carbide–Carbon Nanotubes

A novel composite phase change material (CPCM) was developed by combining carbonized melamine foam (CMF) with chemically bonded silicon carbide–carbon nanotubes (SiC–CNTs) hybrid network. CMF is prepared through the carbonization process, and a graphitized layer is formed on the...

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...

CADKT: A Cognitive-Affective Dual-Graph Contrastive Framework for Dynamic Affect-Aware Knowledge Tracing

Knowledge tracing (KT) predicts students’ future performance by modeling their knowledge mastery from historical learning interactions. Although recent deep learning-based KT models have achieved promising results, most of them mainly rely on response sequences or cognitive struc...

Anchoring Performance of FRP Bar Connectors for Alkali-Activated Lightweight Aggregate Concrete Wall Panels in a Wet–Hot Acid Rain Environment

Abstract This study investigated the bond behavior of basalt fiber–reinforced polymer bars (BFRP) and glass fiber–reinforced polymer (GFRP) bars embedded in alkali-activated ceramsite concrete using direct pull-out tests on 150-mm cubic specimens. The tests were conducted under b...

Nanotoxicity of Ultrasmall Silver Nanoclusters to Cyanobacteria

Cyanobacteria are essential primary producers in aquatic ecosystems. Silver nanoclusters (Ag NCs) are emerging ultrasmall nanomaterials with broad applications; however, they inevitably enter aquatic environments. This study investigated the nanotoxicity of Ag NCs on model cyanob...