Université Djilali de Sidi Bel Abbès

A hierarchical ASM1 calibration framework under limited data conditions: application to a municipal WWTP in Algeria

ABSTRACT Flowchart of the calibration workflow, from plant data and ASM1/BSM1 modelling with 19 parameters, through PRCC screening to 13 and Sobol analysis to 8, to GA and PSO calibration and model validation. This paper presents a hierarchical ASM1 calibration framework applied...

A coupled one-dimensional model for piping erosion under constant pressure drop

Internal erosion is a critical failure mechanism in earth structures. This paper presents a coupled one-dimensional hydraulic-transport-erosion model for pressurised piping under imposed inlet and outlet pressures. The reduced-order framework enables rapid parametric screening, b...

Robust Half‐Metallicity and High Curie Temperature in Inverse‐Heusler Ti 2 Co 1− x Ni x In Alloys: A First‐Principles Study

A first‐principles investigation of inverse‐Heusler Ti 2 Co 1− x Ni x In alloys ( x = 0, 0.25, 0.50, 0.75, and 1) is performed to examine the robustness of half‐metallicity under Co → Ni substitution. Spin‐polarized calculations show that the ferromagnetic XA‐type configuration i...

On the Role of Data Normalization in Adversarial Robustness Evaluation: A Comparative Analysis of XGBoost and Random Forest for IoT Network Intrusion Detection

Intrusion detection systems (IDS) based on machine learning (ML) have demonstrated remarkable effectiveness in detecting cyber-attacks in Internet of Things (IoT) environments. Despite their high predictive performance, the robustness of these systems against adversarial attacks...

Luteinising Hormone-to-follicle-stimulating Hormone Ratio for Predicting Unexplained Infertility in Patients with Hypovitaminosis D

BACKGROUND: Hypovitaminosis D critically influences reproductive hormones in women of reproductive age. The luteinising hormone (LH)/follicle-stimulating hormone (FSH) ratio predicts poor ovulatory response. OBJECTIVE: To evaluate the correlation between the LH/FSH ratio and hypo...

Comparative Fatigue Crack Growth and Fractographic Investigation of Composite‐Patch–Repaired Al 2024‐T3 and Al 7075‐T6 Aerospace Alloys

ABSTRACT This study compares fatigue crack propagation and fracture mechanisms in Al 2024‐T3 and Al 7075‐T6 aerospace alloys repaired with bonded carbon/epoxy composite patches. Single‐edge notched tension specimens were tested under identical constant‐amplitude cyclic loading, a...