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AI-Based Helmet Violation Detection for Traffic Management System

Computer Modeling in Engineering & Sciences 2024年第10期141卷 733-749页

作者： Yahia Said YahyaAlassaf Refka Ghodhbani Yazan Ahmad Alsariera Taoufik Saidani olfa ben rhaiem Mohamad Khaled Makhdoum Manel Hleili Department of Electrical Engineering College of EngineeringNorthern Border UniversityArar91431Saudi Arabia Department of Civil Engineering College of EngineeringNorthern Border UniversityArar91431Saudi Arabia Faculty of Computing and Information Technology Northern Border UniversityRafha91911Saudi Arabia College of Science Northern Border UniversityArar91431Saudi Arabia Department of Mathematics Faculty of Sciences of TabukUniversity of TabukTabuk71491Saudi Arabia

Enhancing road safety globally is imperative,especially given the significant portion of traffic-related fatalities attributed to motorcycle accidents resulting from non-compliance with helmet *** the critical role of helmets in rider protection,this paper presents an innovative approach to helmet violation detection using deep learning *** primary innovation involves the adaptation of the PerspectiveNet architecture,transitioning from the original Res2Net to the more efficient EfficientNet v2 backbone,aimed at bolstering detection *** rigorous optimization techniques and extensive experimentation utilizing the India driving dataset(IDD)for training and validation,the system demonstrates exceptional performance,achieving an impressive detection accuracy of 95.2%,surpassing existing ***,the optimized PerspectiveNet model showcases reduced computational complexity,marking a significant stride in real-time helmet violation detection for enhanced traffic management and road safety measures.

关键词： Non-helmet use detection traffic violation safety deep learning optimized PerspectiveNet

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Functionalization and Structural Characterization of a Novel Nacrite-LiCl Nanohybrid Material

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American Journal of Analytical Chemistry 2015年第3期6卷 202-215页

作者： Nouha Jaafar Sonia Naamen Hafsia ben rhaiem Abdesslem ben Haj Amara Laboratory of Physics of Lamellar Hybrid Materials and Nanomaterials Department of Physics Faculty of Science of Bizerte Zarzouna Tunisia

The nacrite-LiCl hybrid composite material was prepared at room temperature by indirect inter-calation of lithium chloride between the planar layers of nacrite, a clay mineral, using acetone as a solvent. The structural identification of the hybrid clay material was determined by means of X-ray diffraction (XRD), thermogravimetric analysis (TGA) and infrared spectroscopy (IR). The qualitative XRD analysis showed that the basal spacing value increased from 0.72 nm to 1.14 nm and revealed that the alkali halide intercalated successfully in the interlayer space of the nacrite framework. The quantitative XRD analysis allowed us to determine the optimum structural parameters related to the position and number of keyed ions and water molecules per half unit cell calculated along the c* axis and the goodness of fit parameter (Rp). The thermal properties of the elaborated hybrid were in great accordance with the XRD study and confirm the intercalation of the hydrated salt in the interlamellar space of nacrite. Moreover, IR spectroscopy enabled the study of the interactions between the silicate ‘‘networks’’ and the alkali halide.

关键词： Nacrite Composite Material X-Ray Diffraction TG Analysis Infrared Spectroscopy

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Elaboration of Amorphous-Clay Hybrid: (Al2Si2O7·1/2Li2O) Designed as a Single Ion Conducting Solid Electrolyte for Li-Ion Batteries

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American Journal of Analytical Chemistry 2014年第17期5卷 1261-1272页

Keying of lithium chloride alkali halide salt into the interlamellar space of nacrite clay mineral leads to a stable hybrid material that after calcination under inert atmosphere at 723 - 873 K induces an amorphous metahybrid. The electrochemical impedance spectroscopy (EIS) was performed to investigate the electric/dielectric properties of the hybrid with various parameters: frequency and temperature. Equivalent circuit was proposed to fit the EIS data. The experiment results show that the ionic conduction mechanism is related to the motion of Li+ cations which are thermally activated, named the hopping model. Furthermore, the resulting metahybrid obtained from dehydroxylation of the formal hybrid shows a superionic behavior with high ionic conductivity up to 10﹣2 S·m﹣1, good electrochemical stability and can be used as a solid electrolyte material for Li-ion batteries.

关键词： Nacrite Clay Hybrid Amorphous Solid Electrolyte Lithium-Ion Battery

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Relation Between Mechanical Constraints and The Hydration Behaviour in the Case of Na-Montmorillonite:Structural Analysis and Elastics Properties

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矿物学报 2013年第S1期33卷 95-95页

作者： Walid Oueslati Hafsia ben rhaiem Abdesslem ben Haj Amara SUR05/13-01 Physique des Matériaux Lamellaires et Nanomatériaux Hybrides (PMLNMH) Faculté des Sciences de BizerteZarzouna 7021Tunisia

The experimental prediction of the mechanical properties of minerals remains difficult because of their small particle size (typically < 2 micrometers). This work aims at examining, the effect of an applied mechanical constraint on the hydration behaviour in the case of Na rich-montmorillonite and its relation with the elastic properties. The mechanical constraint is created, at the laboratory scale, by applying a monoaxial pressure for unstressed host material (i.e. Na rich montmorillonite). The structural analysis before and after stress is achieved using an XRD profile modeling approach. This investigation allowed us to determine several structural parameters related to the nature, abundance, size, position and organization of exchangeable cation and water molecule in the interlamellar space along the c* axis. In order to evaluate the affected elastic properties, the GULP code have been used to study the structure and the interlamellar organization. Indeed, the bulk modulus and elastic constants of montmorilonite have been calculated from first principles within density functional theory (DFT). The obtained Young’s modulus for Na-montmorillonite interlayer varies from 5 GPa to 16 GPa. According to the interlamellar space configuration the calculated elastic constant tensors indicate that the a direction is slightly more flexible than the b direction. The calculated elastic constant tensor along c is much lower than the constants calculated along a and b.

关键词： Na rich-montmorillonite hydration behavior GULP code elastic properies

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