Publications Internationales
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Item Optimal wind–thermal economic dispatch considering voltage stability improvement using manta ray foraging optimization algorithm(ITEGAM-JETIA, 2026) Bourzami, Arif; Amroune, Mohammed; Haddar, MabroukThis paper investigates the adaptation and the application of one of the recently proposed meta-heuristic optimization algorithm namely Manta Ray Foraging (MRFO) algorithm to solve the Optimal Power Flow (OPF) problem with the presence of wind power generation. The wind generation cost model includes direct cost, expected penalty cost and expected reserves cost to account for wind power generation imbalance. The methodol ogy for maximizing voltage stability margin in the system is also presented in this study and the line voltage stability index is used as indicator to investigate voltage stability assessment. The effectiveness of the proposed methodology is tested on IEEE 30-bus power system for different objective functions. The obtained results are compared with the recently published methods in the case of conventional OPF as well as in the case of OPF incorporating wind sources. The comparison study demonstrates the effectiveness of the proposed methodologyItem High sensitive 2d photonic crystal biosensor based on hexagonal resonator coupled with a capsule-shaped for the detection of deferent cancerous cells(ITEGAM-JETIA, 2026) Bensalah, Hocine; Menasri, Wahiba; Imam, Abderrahmane; Hocini, Abdesselam; Soroosh, Mohammad; Bahri, Hocine; Bouandas, Hiba; Zegaar , Imane; Tlemçani, Abdelhalim; Menasri, NadiaIn the present study, we introduce an innovative photonic crystal architecture meticulously engineered for biomedical applications, particularly optimized for biosensing functionalities. Our study focuses on meeting the increasing demand for quick, reliable, and easy-to-use detection methods in medical diagnostics. The proposed architecture employs a hexagonal arrangement integrated with two waveguides for signal input and output, which is further augmented by the inclusion of a pill-shaped resonator to enhance sensitivity. The design enables strong confinement of the electromagnetic field and improves interaction with the analyte. The simulations were performed using the Finite-Difference Time-Domain (FDTD) method over a wavelength range of 1.6 to 1.95 micrometers (µm). The findings indicate that the biosensor is capable of attaining a peak sensitivity of 571 nanometers per refractive index unit (nm/RIU), thereby underscoring its significant potential for detecting subtle alterations in biological specimens and contributing to the advancement of medical diagnostics. Such sensitivity levels demonstrate the effectiveness of the proposed structure in identifying biomolecular interactions and refractive index variations typically associated with various types of cancer cells and other biological conditions.Item Broad-Band Nolen Beamforming Matrix Inspired by Groove Gap Waveguide Technology for MultiBeam Antenna Arrays in mmWave SatelliteOriented Space Multiplexing Systems(IEEE, 2026) Alibakhshikenari, Mohammad; Bal, Virdee; Qasaymeh, Yazeed Mohammad; Zidour, Ali; Chaudhary, Muhammad Akmal; See, Chan H.; Livreri, Patrizia; Abbasi, Nisar Ahmad; Othman, Mohamadariff; Saber, Takfarinas; Ernesto, LimitiThis work presents the design and experimental validation of an integrated single-layer 4×4 Nolen beamforming matrix (NBM) implemented in groove gap waveguide (GGW) technology as an enabling front-end for multi-beam satellite gateway systems. The matrix is designed for operation within the 30–40 GHz upper Ka-band region, with optimal impedance matching and beamforming performance centered around 38 GHz, offering low-loss planar routing suitable for compact mmWave front-end architectures. The network combines broadband H-plane directional couplers (3.04, 4.77, and 6.0 dB) with fundamental and delay-compensation phase shifters to equalize amplitudes and maintain progressive phase. A WR-28-compatible input-feeding transition enables practical interfacing without disturbing the internal phase states, and a linear 4×4 slot-array antenna is integrated to demonstrate wide-angle multi-beam radiation. In contrast to prior Nolen matrices, including recent GGW implementations, this work introduces a fully single-layer GGW realization with parallel routing and built-in delay compensation, achieving phase error within (±10°), nearequalized amplitudes, and simplified fabrication within a compact footprint. In particular, compared to the recent GGWbased Nolen matrices, which employ the multilayer configurations and report only simulation results, the proposed work demonstrates the first experimentally validated single-layer GGW Nolen matrix with integrated feeding transition and radiating array. Measurements confirm return loss better than −15 dB, port-to-port isolation exceeding 15 dB, amplitude imbalance within ±1.2 dB (around 6 dB nominal output), and phase error within ±10° with stable phase progression around 38 GHz .Item Presence of the Reader in the Construction of Ancient Arabic Poetic Texts: A Foundational and Communicative Approach(Academic Publishing House Researcher s.r.o., 2026) Tayeboun, Faryal; Hamdidi, BoualemThis research paper aims to forge a nuanced reception framework within the realm of traditional Arabic criticism, marked by a profound exploration of the historical depths of Arab intellectual heritage. By adopting both a methodological and systematic approach, devoid of undue reverence, this research aims to firmly anchor an Arabic critical inquiry upon its foundational cognitive principles, essential pillars, and communicative objectives. Originating from an epistemological critical consciousness, it seeks to actively participate in contemporary critical discourse through its theoretical underpinnings and procedural instruments. This is achieved by examining the pivotal role of the reader in traditional poetics, which facilitates a meaningful engagement with modern critical questions and reaffirms the validity of the methodologies used in traditional Arab criticism. Such an approach not only fosters cognitive intersections with diverse scholarly perspectives but also promotes a dialogic exchange of knowledge, enriched by interdisciplinary support and integration.Item Structural Health Monitoring of Marine Propellers Using Strain Modal Parameters(Universiti Tun Hussein Onn Malaysia (UTHM), 2026) Azzi, Rachid; Farid, AsmaThe marine propeller in operation undergoes local defects on the surface and edges of the blades, thus causing vibrations of the propulsion system and a reduction of the propulsion efficiency of the propeller. These local defects develop gradually under the effect of cyclic stresses and lead to the failure of the marine propeller blade by fatigue. In this article, a unique non-destructive approach for structural defect identification in marine propeller blades is presented. The defect identification methods defined by modal strains, such as strain mode shapes changes, strain flexibility changes, and defect index, were used to find and identify single and multiple defects in the marine propeller blade’s structure. The modal strain-related defect indicators were calculated from the strain mode shapes. The strain mode shapes of the marine propeller blade are tri-axial and are calculated along the x, y, and z directions of vibration. In this article, three defect types were considered, with different sizes along the length of the three guide curves starting from the blade base to the free end. The results proved that the proposed defect identification methods defined by modalstrains can accurately locate single and multiple defects up to fourappearing on the leading edge, the trailing edge, and the propeller bladesurface. The magnitude of the defect index at nodes of defectiveelements is higher (order of 10-2) than the magnitude of strain modeshapes change (order of 10-3), and much higher than the magnitude of strain flexibility change, which is of the order of 10-9. The defect severity quantification on a marine propeller blade is feasible as the magnitudes of the three proposed defect indicators at the nodes of the defective elements are proportional to the severity of the defects.Item Enhancing the Reliability of Fault Diagnosis in Lithium-Ion Batteries Using a Hybrid Model-Based and Machine Learning Approach(Institute of Electrical and Electronics Engineers, 2026) Maaradji, Taha Mohamed Abdelatif; Alem, Said; Gravante, Emanuele; D'Arpino, Matilde; Rizzoni, GiorgioLithium-ion batteries (LIB) are essential for electric vehicles (EV) and renewable energy storage, and their safe, reliable, and efficient operation is critical. As their use grows, robust fault diagnosis becomes key to maintaining availability and performance. A major challenge is that many battery faults exhibit similar patterns, making it difficult to distinguish and isolate specific fault types. This paper presents a hybrid approach that combines model-based methods with data-driven techniques to improve the safety and reliability of LIB systems. The proposed diagnostic architecture uses structural analysis (SA) to identify analytical redundancy for fault detection and isolation (FDI), while Extended Kalman Filter (EKF) algorithms generate residuals that capture inconsistencies between model predictions and measurements. These residuals are processed into statistical features and passed to a machine learning (ML) classifier for accurate fault detection and classification. In this series-hybrid structure, using SA–EKF residuals as classifier inputs significantly improves diagnostic performance compared to ML-only features, and among the tested classifiers, Residual-based RF achieves the highest accuracy. The method achieves 98.73% accuracy in distinguishing fault types, demonstrating high sensitivity across all faults and robustness to varying noise levels. Overall, the proposed hybrid methodology enhances fault diagnosis effectiveness and supports the safe operation of LIB systems, contributing to the transition toward clean and sustainable energy solutionsItem On a new generalization of Stirling numbers and Bell polynomials(University of Nis, 2026) Taharbouchet, Said; Mihoubi, MiloudIn this paper, we introduce and study a novel class of generalized Stirling numbers depending on a real parameter and two sequences of real numbers. This class extends several known families of numbers, including the Hsu-Shiue generalized Stirling numbers S n, k; α, β, γ . We also present a combinatorial interpretation of these numbers, which allows us to derive a variety of combinatorial identities. Additionally, we establish several identities for the associated polynomials and, under suitable conditions on the defining parameters, analyze the real roots of these polynomials. Finally, we establish some properties of the differential operator acting on these polynomialsItem Physical Education and Sports and Their Role in Achieving General Education Under the Competency-Based Approach Curriculum(Academic Publishing House Researcher, 2026) Khellafi, Aziz; Bensaada, Maamar Badreddine; Kobzili, Badreddine; Haddi, Ali; Benaissa, Redha; Sefir, Hadj; Benyahia, Oussama; Cheriet, Mohamed el hacene el maamounThis field-based scientific study aims to highlight the pivotal role of physical education and sports in achieving the dimensions of general education among secondary school students, with a special focus on the pedagogical shift towards the "competency-based approach." The descriptive-analytical method was adopted due to its suitability for the nature of the studied phenomenon. The research sample included 40 specialized physical education and sports teachers distributed across secondary schools in Chlef Province. A questionnaire was used as the main tool for data collection and statistical analysis. The study results revealed that physical education is not merely a motor activity, but a comprehensive educational tool that contributes to raising the level of academic achievement and developing a balanced personality for adolescents. The study also confirmed that the competency-based approach places the learner at the center of the educational process and grants them greater independence. However, the success of this curriculum remains dependent on the availability of material resources, sports facilities, and sufficient time allocation—challenges that the study revealed to be severely lacking in reality.Item Thermal and Rheological Analysis of Elliptical Ducts and Non-Newtonian Nanofluids in Heat Exchanger Applications(Semnan University, Center of Excellence in Nonlinear Analysis and Applications, 2026) Behnous, Dounya; Ragueb, Haroun; Manser, Belkacem; Tahiri, Antar; Mansouri, KacemThis study numerically investigates the thermal and rheological performance of a double-pipe heat exchanger (DPHE) with an inner elliptical duct (with an aspect ratio of 0.25) using non-Newtonian nanofluids comprising multi-walled carbon nanotubes (MWCNTs) dispersed in water, stabilized with 0.2 wt.% cationic chitosan. Employing the finite volume method, we demonstrate that elliptical ducts significantly enhance heat transfer compared to circular tubes, increasing the number of transfer units (NTU) by up to 25% and effectiveness by 17%. The incorporation of MWCNTs further improves heat transfer by enhancing thermal conductivity, achieving up to 30% increase in NTU and 20% in effectiveness. Despite higher pressure losses in elliptical ducts, the shear-thinning behavior of the nanofluids mitigates these losses at higher flow rates, reducing pumping power requirements. These findings highlight the potential of combining elliptical ducts and non-Newtonian nanofluids to optimize DPHE efficiency, offering significant implications for energy-efficient heat exchanger designs in industrial applicationsItem Effect of lithium chloride on hemolymph components, hypopharyngeal glands, ovarian development, and oxidative stress in honey bee (Apis mellifera L.) workers under controlled conditions(Taylor& Francis, 2026) Ghaffar, Intissar; Cherrered, Nawel; Khedidji, Hassiba; Chahbar, Nora; Cresta, Eleonora; Lazzari, FilippoOne hundred and fifty newly emerged worker bees were transferred into Pain-type cages. The experiment included five replicates per batch: five cages for the control, five for bees treated with 10 mM lithium chloride (LiCl), and five for bees treated with 25 mM LiCl. Pollen paste and syrup consumption were measured at 7 and 14 d. Worker bees were sampled at 0, 7, and 14 d for hemolymph extraction (to measure protein, lipid, and sugar content) and for dissection of hypopharyngeal glands (HPGs) and ovaries. Oxidative stress marker levels were also quantified. The results revealed that LiCl treatment did not significantly affect food consumption (pollen paste and syrup). Protein, sugar, and lipid levels in the hemolymph increased with age (p < 0.001) without any effect from LiCl. HPGs development was significantly reduced by 25 mM LiCl at 7 d (p = 0.003) and by both concentrations at 14 d (p < 0.001). Ovarian development was significantly inhibited by 25 mM LiCl at 7 d (p < 0.001) and 14 d (p = 0.016), whereas 10 mM had no significant effect. Malondialdehyde (MDA) levels and antioxidant capacity were not affected by LiCl but varied with age. These results suggest that a high dose of LiCl (25 mM) disrupts HPG and ovarian development in honey bees without inducing measurable oxidative stress.