University of Carthage

Quasi-static compression performance of multiphase 3D-printed PLA–PETG interpenetrating TPMS structures

Triply Periodic Minimal Surface (TPMS) lattices are attractive cellular architectures owing to their smooth, curvature-continuous geometry, high surface-to-volume ratio, and efficient load-bearing behavior. TPMS structures are widely investigated for lightweight and energy-absorp...

Compact target-aware stability-based feature selection for cross-dataset wearable activity monitoring

Wearable activity-recognition models may lose reliability when transferred across participants, sensor placements, sampling rates, acquisition protocols, and activity definitions. This study evaluates a compact unsupervised target-aware feature-selection strategy for cross-datase...

Synchronisation analysis for fractional-order discrete-time high-order BAM neural networks with time-varying delays

This paper investigates the problem of quasi-synchronisation (QS) and complete synchronisation (CS) for a class of fractional-order discrete-time high-order bidirectional associative memory neural networks (DFBHONNs) with time-varying delays. Firstly, by employing the Caputo frac...

Board Expertise and Firm Profitability: The Moderating Roles of Product Market Competition and Institutional Quality

This paper investigates the association between board expertise and firm profitability. Using an international sample of 42,623 firm-year observations from 2002 to 2021, we find that firms with greater industry and financial expertise on their boards exhibit significantly higher...

Ownership structure and firm performance in G5 countries: a dynamic panel ARDL approach with a focus on employee shareholding

Purpose This study examines how institutional, concentrated and employee ownership structures impact the financial performance of publicly listed firms across G5 countries. It aims to provide a comprehensive understanding of how different ownership types influence firm performanc...

Assessment of the macroeconomic and environmental impacts of renewable energy investments using a SAM-based multiplier model: The case of Tunisia

Energy transition is a major challenge for developing nations, and reducing energy use and greenhouse gas emissions is crucial for a sustainable economy. This shift in Tunisia is accompanied by the development of renewable energy sources and the improvement of energy efficiency,...

Novel tools into phytochemical profile, bioinsecticidal properties, and molecular docking analysis of Tunisian Diplotaxis erucoides (L.) DC. subsp. erucoides

This study evaluated the insecticidal effects of Tunisian Diplotaxis erucoides (DXe) against Tribolium confusum . Active substances present in the extracts were identified through UHPLC-Q-Orbitrap-MS/MS. Repellency and mortality were assessed using different concentrations of the...

Precision Livestock Farming Technologies for Sheep Welfare in Extensive Systems: A Comprehensive Review

BACKGROUND: Ensuring animal welfare in extensive sheep production systems remains challenging due to large grazing areas, limited human supervision and the difficulty of detecting early signs of health or behavioural problems. Precision Livestock Farming (PLF) technologies have e...

Ecological Quality Assessment of Mediterranean Wadis in the Bizerte Lagoon Catchment (Northern Tunisia) Using Benthic Diatoms

The study presents an integrated assessment of water quality in wadis of the Bizerte Lagoon catchment (Northern Tunisia), using benthic diatom assemblages. Seasonal sampling was conducted between winter 2023 and winter 2024 in three wadis exposed to varying anthropogenic pressure...

N-Acetylcysteine, Tiron, and Their Combination: In Vitro Antioxidant and Anti-Inflammatory Activities and Their Protective Effect in a Rat Model of Acetic Acid-Induced Ulcerative Colitis

Ulcerative colitis is characterized by inflammation, oxidative stress, and excessive free radical production. This study investigated the antioxidant, anti-inflammatory, and protective effects of N-acetylcysteine (NAC), Tiron, and their fixed-ratio combination in acetic acid-indu...

Effects of Replacing Concentrate Feed with Carob (Ceratonia siliqua) Pods on Growth Performance, Carcass Characteristics, Meat Quality, and Rumen Fermentation in Assaf Lambs

This study examined the effects of replacing 25% (P25) or 50% (P50) of concentrate dry matter (DM) with sun-dried carob (Ceratonia siliqua L.) pods on growth performance, apparent nutrient digestibility, carcass traits, meat quality, serum biochemistry, and rumen microbiology in...

A&M based fractional delay and Doppler channel estimation in OTFS

Orthogonal time frequency space (OTFS) modulation is a candidate for low-density high-mobility communication (LDHMC) use case in sixth generation (6G) due to its robustness against Doppler effects. This paper presents a low-complexity channel estimation method based on the A&M fr...