Imam Mohammad ibn Saud Islamic University

Data-driven optimization of a biomass–geothermal system for power and green ammonia production

This study presents a hybrid biomass–geothermal energy system for simultaneous power generation and ammonia production. The system integrates biomass conversion via gasification or anaerobic digestion, a gas turbine cycle, a geothermal-assisted organic Rankine cycle (ORC), thermo...

Designing Ni3N/CDTs heterostructure for superior alkaline electrochemical activity: Insights from theory to experiment

The creation of efficient oxygen evolution reaction (OER) electrocatalyst are vital for hydrogen energy sustainability. Here, Ni 3 N/CDTs has been synthesized through hydrothermal method that unveils enhanced conductivity, better electronic structure, having greater number of act...

A design-based approach to collaborative learning in flipped classrooms: Fostering socio-cognitive and psychological competencies among female Saudi postgraduates

Although flipped learning has gained global attention, its implementation in traditionally teacher-centered and culturally conservative contexts such as Saudi Arabia remains underexplored. This study examined how integrating collaborative learning within a flipped classroom can s...

Robust model-free DC-bus voltage regulation for stand-alone solar-powered electric vehicle charging stations with experimental laboratory verification

This paper proposed an ultra-local model free control (ULM) strategy for robust DC bus voltage regulation in a stand-alone solar powered electric vehicle charging station. In this study, the system under consideration consists of a photovoltaic (PV) generator interfaced via a max...

Insecticidal activity of Metarhizium anisopliae-mediated nanoparticles and fungal metabolites against the red palm weevil, Rhynchophorus ferrugineus

Abstract This study evaluated the insecticidal activity of green-synthesized metallic nanoparticles (Ag, CuO, and ZnO) and the ethanolic extract of Metarhizium anisopliae against the red palm weevil ( Rhynchophorus ferrugineus ). Physicochemical characterization confirmed the suc...

DeepBreastNet: Multi-Modal Deep Learning for Comprehensive Breast Cancer Diagnosis Across Heterogeneous Imaging Modalities

Breast cancer is one of the most common and deadly cancers worldwide, making early and accurate diagnosis essential for effective treatment. While deep learning methods have shown promise in breast cancer detection, most existing approaches focus on individual imaging modalities,...

Transformative hospitality through community-led artistic interventions

Purpose This study aims to examine how community-led artistic interventions activate early-stage processes of transformative hospitality. It is based on the case of Altofest, an international contemporary art festival in Naples. Design/methodology/approach This qualitative interp...

A multicriteria decision making approach for ranking gastric cancer drugs based on topological indices and physicochemical properties

Abstract Chemical graph theory offers a mathematical approach to molecular structure representation and physicochemical property investigation through descriptors based on graph theory. In this study, a QSPR model is developed for analysis of some gastric cancer drug molecules by...

Hesitant Fuzzy-Based Computational Technique for Evaluating Lightweight Authentication Mechanisms

The rapidly changing digitalization of the energy sector, fueled by smart grids, the Industrial Internet of Things (IIoT), Advanced Metering Infrastructure (AMI), and Supervisory Control and Data Acquisition (SCADA) systems, is leading to a great and symmetrical improvement in wo...

Peganum harmala L.: Essential Oil Composition, Extraction Technologies, Biological Activities and Emerging Applications

Peganum harmala L. is a xerophytic medicinal and aromatic plant of considerable ethnopharmacological importance, characterized by a rich diversity of β-carboline alkaloids, phenolic compounds, and essential oil constituents. Despite increasing scientific interest, current knowled...

Cadmium and bismuth dopants’ synergistic effect on the photocatalytic dye degradation potential of ZnO/CdO

Currently, several dyes are used in day-to-day activities, and their toxicity poses significant challenges to human health. In this study, the high negative conduction and positive valence band edge of zinc oxide (ZnO) were modified through the inclusion of Cd and Bi dopants as l...

Protective effect of lycopene against sodium nitroprusside-induced oxidative stress in Artemia salina

Lycopene is a carotenoid with potent antioxidant properties, that is widely used in the food, pharmaceutical, and cosmetic industries, thereby increasing the likelihood of its release into aquatic environments through industrial effluents. Artemia salina is a well-established eco...

Reliability Estimation of s‐Out‐of‐k Systems Under Inverted Z–Lindley Stress–Strength Models With Progressive Censoring: An Engineering Application

ABSTRACT Fault‐tolerant systems are built with redundancy, surviving as long as enough of their components withstand the operating load. We model an ‐out‐of‐ : G system whose nominally identical components share a common random stress and quantify its reliability when both streng...

Lead-free Cs2MH6 (M = Ge, Sn) vacancy-ordered double perovskites for optoelectronic applications: a first-principles study

Abstract Lead-free vacancy-ordered double perovskite hydrides are gaining attention as environmentally friendly materials for next-generation optoelectronic applications. In this work, first-principles density functional theory (DFT) calculations are employed to systematically in...

Globus Pharyngeus: A Comprehensive Review from Pathophysiology to Management

Abstract Globus pharyngeus is a common functional pharyngeal and esophageal disorder characterized by the persistent or intermittent, painless sensation of a lump or foreign body in the throat. Historically known as a hysterical symptom, it is now recognized as a complex, multifa...

AI-driven consistency-aware early warning framework for smart grid stability monitoring

The increasing penetration of renewable energy sources and distributed generation has made modern power grids more dynamic and more vulnerable to instability. This increased operational uncertainty makes timely stability monitoring essential for reliable grid operation. Most exis...

Engineering serpentinite-derived materials for sustainable water remediation: activation pathways, surface engineering, and adsorption–photocatalytic applications—a review

The growing deterioration of water quality caused by emerging contaminants has intensified the search for efficient, low-cost, and sustainable remediation materials. Among natural mineral resources, serpentinite has attracted increasing attention because of its abundance, Mg-rich...

Blue carbon ecosystems under pollution stress: Impacts and integrated carbon‐pollution monitoring

Abstract Coastal blue carbon ecosystems, including mangroves, seagrass meadows, and salt marshes, are globally important carbon sinks because they store organic carbon in vegetation biomass and waterlogged sediments over long timescales. However, nutrient enrichment, heavy metals...

Corrosion fatigue behavior of hyper-quenched X6CrNiMoCu25-6 steel in synthetic seawater at 70 °C

The aim of this study is to investigate the corrosion fatigue behavior of X6CrNiMoCu25–6 steel in a hyper-quenched state in synthetic seawater at 70°C. Cracking tests were performed on standardized CT10 test specimens in environments representative of the operating conditions of...

Changes in Glycemic Control and Lipid Profiles Following COVID-19 Infection in Adults with Type 2 Diabetes: A Retrospective Study in Saudi Arabia

Background: The clinical course and mortality risk of COVID-19 in patients with type 2 diabetes (T2D) remain elevated. Understanding its pathogenesis is essential for prognostic and therapeutic strategies. Viral infections can disrupt host glucose and lipid metabolism. This study...