Université Oran 1 Ahmed Ben Bella

Waste-Derived Zeolite-P (GIS): Synthesis, Polymorphism, Characterization, and Adsorption Applications for Water Purification and Selective Gas Separation

Zeolite-P is a synthetic member of the gismondine (GIS) framework family and is intrinsically microporous, with intersecting eight-membered-ring channels. Mesoporosity reported for some Zeolite-P samples is therefore a secondary textural feature arising from interparticle voids,...

Secure and scalable IoT device management with blockchain, K-anonymity, and deep reinforcement learning

The vast expansion of Internet of Things (IoT) ecosystems has posed significant challenges regarding security, scalability, latency, and user privacy, which are not properly handled by the conventional architectures. To solve these issues, the authors of this paper suggest an int...

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...

Fixed-Point Theorem via a Composite Matkowski Comparison Function for a Generalized Ćirić–Reich–Rus Interpolative Contraction with Iterates and Applications to Fractional and Nonlinear Integral Equations

This paper establishes existence and uniqueness results for a generalized Ćirić–Reich–Rus interpolative contraction involving distinct forward horizons p,q>1 and a delay parameter r>1. By employing a Matkowski comparison function φ and introducing a composite condition Ψ(t)...