Université des Sciences et de la Technologie d'Oran Mohamed Boudiaf

Computational Investigation of Different Taper Ratios and Chimney Divergence Effects on Solar Chimney Power Plant Performance

Solar chimney power plants (SCPPs) are a promising renewable energy technology whose performance is strongly influenced by geometric configuration. This study investigates the effects of collector taper ratio (TR) and chimney divergence ratio (CORR) on the thermo-fluid behavior a...

Analyzing and Mitigating Asymmetric Learning for Product Cold-Start in E-Commerce Purchase Prediction with Graph Neural Networks: Similarity-Driven History Augmentation

Graph Neural Networks (GNNs) have become a foundational tool for e-commerce recommendation systems, yet they consistently fail in zero-shot cold-start scenarios where new products enter the market without prior interactions. In this paper, we diagnose this failure as a structural...

Multiscale Pore Architecture and Fractal Heterogeneity of Coal, Shale, and Tight Sandstone: An Integrated HMIP–N2/CO2 Adsorption–NMR Characterization Framework

Abstract Comprehensive characterization of multiscale pore structures in unconventional reservoirs is crucial for evaluating gas storage, migration pathways, and production potential. This study presents an integrated, multimethod investigation of Lower Jurassic low-rank coal, lo...

Valorizing Olive Pomace into a Biochar-Based Slow-Release NPK Fertilizer

The excessive use of conventional NPK fertilizers can reduce nutrient use efficiency due to nutrient losses, emphasizing the need for controlled-release fertilizer systems. This study aimed to prepare and evaluate olive pomace-derived biochar (BC) as a carrier for nitrogen–phosph...