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Chinese Physics B 2023年第4期32卷 142-150页

作者： Hamdi Ayed Department of Civil Engineering College of EngineeringKing Khalid UniversityAbha 61421Kingdom of Saudi Arabia higher institute of transport and logistics of sousse University of SousseSousse 4023Tunisia

A three-dimensional Darcy Forchheimer mixed convective flow of a couple stress hybrid nanofluid flow through a vertical plate by means of the double diffusion Cattaneo-Christov model is presented in this study.The influence of highorder velocity slip flow,as well as a passive and active control,is also considered.The motive of the research is to develop a computational model,using cobalt ferrite(Co Fe_(2)O_(4))and copper(Cu)nanoparticles(NPs)in the carrier fluid water,to magnify the energy and mass communication rate and boost the efficiency and performance of thermal energy conduction for a variety of commercial and biological purposes.The proposed model becomes more significant,with an additional effect of non-Fick's mass flux and Fourier's heat model to report the energy and mass passage rate.The results are obtained through the computational strategy parametric continuation method.The figures are plotted to reveal the physical sketch of the obtained solution,while the statistical assessment has been evaluated through tables.It has been observed that the dispersion of Cu and Co Fe_(2)O_(4)NPs to the base fluid significantly enhances the velocity and thermal conductivity of water,which is the most remarkable property of these NPs from the industrial point of view.

关键词： hybrid nanofluid high order slip couple stress fluid non-Fourier's heat and mass flux Darcy Forchheimer effect

A Genetic Algorithm to Minimize the Makespan in a Two-Machine Cross-Docking Flow Shop Problem

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Journal of the Operations Research Society of China 2020年第3期8卷 457-476页

作者： Imen Hamdi Mohamed Fadhel Tekaya High institute of transport and logistics University of SousseSousseTunisia MODILS lab Faculty of Economics and ManagementUniversity of SfaxSfaxTunisia

We consider the problem of two-machine cross-docking flow shop scheduling where each job on the second machine cannot be processed unless a job or a set of jobs have been completed on the first machine.The aim is to find a feasible schedule that minimizes the makespan.As the problem is shown to be strongly NP-hard,we propose a genetic algorithm to solve small and large size problems.We test different types for each genetic operator where new ideas are introduced,which leads to propose six versions of the genetic algorithm.We then evaluate their effectiveness through an extensive computational experiments by using many instances generated randomly and by determining the percentage deviation from a lower bound from the literature.

关键词： Cross-docking Flow shop Scheduling Makespan Genetic algorithm

Load and velocity boundaries of oil-based superlubricity using 1,3-diketone

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Friction 2023年第5期11卷 704-715页

作者： Yuyang YUAN Tobias AMANN Yuwen XU Yan ZHANG Jingfu CHEN Chenqing YUAN Ke LI School of transportation and logistics Engineering Wuhan University of TechnologyWuhan 430063China Reliability Engineering institute National Engineering Research Center for Water Transport SafetyMOSTWuhan 430063China Fraunhofer institute for Mechanics of Materials IWM Freiburg 79108Germany

The clarification of the critical operating conditions and the failure mechanism of superlubricity systems is of great significance for seeking appropriate applications in industry.In this work,the superlubricity region of 1,3-diketone oil EPND(1-(4-ethyl phenyl)nonane-1,3-dione)on steel surfaces was identified by performing a series of ball-on-disk rotation friction tests under various normal loads(3.5–64 N)and sliding velocities(100–600 mm/s).The result shows that beyond certain loads or velocities superlubricity failed to be reached due to the following negative effects:(1)Under low load(≤3.5 N),insufficient running-in could not ensure good asperity level conformity between the upper and lower surfaces;(2)the high load(≥64 N)produced excessive wear and big debris;(3)at low velocity(≤100 mm/s),the weak hydrodynamic effect and the generated debris deteriorated the lubrication performance;(4)at high velocity(≥500 mm/s),oil migration occurred and resulted in oil starvation.In order to expand the load and velocity boundaries of the superlubricity region,an optimized running-in method was proposed to avoid the above negative effects.By initially operating a running-in process under a suitable combination of load and velocity(e.g.16 N and 300 mm/s)and then switching to the target certain higher or lower load/velocity(e.g.100 N),the superlubricity region could break through its original boundaries.The result of this work suggests that oil-based superlubricity of 1,3-diketone is a promising solution to friction reduction under suitable operating conditions especially using a well-designed running-in strategy.

关键词： macroscopic superlubricity 1,3-diketone oil running-in process load and velocity boundaries

Road traffic nanoparticle characteristics:Sustainable environment and mobility

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Geoscience Frontiers 2022年第1期13卷 388-403页

作者： Ines Belkacem Ali Helali Salah Khardi Amani Chrouda Khalifa Slimi Laboratory of Thermal and Energy Systems Studies(LESTE) National Engineering SchoolUniversity of MonastirTunisia Environment PlanningSafety and Eco-design LaboratoryDepartment of MobilityPlanning and the EnvironmentGustave Eiffel UniversityUniversity of Lyon–LyonFrance Mechanical Laboratory of sousse National Engineering School of SousseUniversity of SousseTunisia Department of transportation Technology and Engineering Higher Institute of Transportation and LogisticsUniversity of SousseTunisia Contact and Structure Mechanics Laboratory LaMCoS Campus LyonTech La Doua–INSA Lyon.27bisAvenue Jean CapelleF69621 Villeurbanne cedexFrance Department of Chemistry College of Science at ZulfiMajmaah UniversityZulfi 11932Saudi Arabia

Human effects and environment impacts associated with nanoparticles generated from road traffic have recently attracted wide attention.Knowledge of the influencing variables on both number and mass of nanoparticles,sources,characteristics and limitations of advanced commercially accessible instruments for monitoring nanoparticles,are still scarce and not sufficient to make regulatory decision on solid particles smaller than 23 nm(SPN<23 nm).Given the harmful effects of nanoparticles on human health(i.***.visibility impairment,cardiac-rhythm disturbance,heart attacks,premature death,etc.),their control and assessment seem to be an absolute priority.In this overview,we classify and analyze the existing knowledge of nanoparticles in road traffic atmosphere,recent progress,and emerging priorities in research related to these topics.The major aspects of ongoing research in this field,and a brief discussion of the main sources of atmosphere nanoparticles are presented.The subsequent section focuses on the influencing parameters of nanoparticles including climate conditions,height above the road surface and distance between source(road traffic)and sampling site.The next section provides a comprehensive summary on sampling measurement methodologies and instrumental techniques.We also review the health and environment implications associated with particle exposure.Finally,an evaluation of the state of research related to nanoparticles together with highlights for future research activities are also presented.

关键词： Road traffic Nanoparticles Sustainable environment Air pollution Health

Friction reduction behavior of oil-infused natural wood

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Friction 2022年第11期10卷 1824-1837页

作者： Shutian LIU Conglin DONG Chengqing YUAN Xiuqin BAI School of transportation and logistics Engineering Wuhan University of TechnologyWuhan 430063China Key Laboratory of Marine Power Engineering&Technology(Ministry of transport) Wuhan University of TechnologyWuhan 430063China Polymer Technology Department of Mechanical EngineeringEindhoven University of TechnologyEindhoven 5600 MBthe Netherlands

Natural materials tend to exhibit excellent performance in the engineering field because of their structure and special functions.A natural red willow,called natural porous wood material(NPWM),was found,and wear tests were conducted to determine its potential as an oil-impregnated material by utilizing its special porous structure.Fluorination treatment was adopted to improve the NPWM properties for absorbing and storing lubricating oil.The different contributions of soaking and fluorination-soaking treatments on the tribological properties of NPWMs and their respective mechanism of effect were revealed.The results showed that the fluorination-soaking treatment helped absorb and store sufficient lubricating oil in the NPWM porous structure;therefore,more lubricating oil would be squeezed out and function as a tribol-film between contacting surfaces during the friction process,thus ultimately contributing to stable and smooth wear responses even under prolong friction.However,the formation of an oil-in-water emulsion,caused by the buoyancy effect,destroyed the oil films on the worn NPWM surface in a water environment,resulting in higher coefficients of friction(COFs)under water conditions than under dry friction,even after the fluorination-soaking treatment.The knowledge gained herein could not only verify the potential of NPWM as an excellent oil-impregnated material in the engineering field but also provide a new methodology for the design of artificial porous materials with stable and smooth friction processes.

关键词： natural porous material oil infusion treatment fluorination frictional behaviors

CRP Binding Kinetics Enhancement Using Local Narrowing into a Bent Channel: Finite Element Analysis

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Engineering（科研） 2022年第1期14卷 62-75页

作者： Mohamed Bahri Imen Dermoul Marshet Getaye Mohamed Amin Elaguech Khouloud Djebbi Mounir Ben Ali Chaker Tlili Deqiang Wang Chongqing School University of Chinese Academy of Sciences Chongqing China Chongqing institute of Green and Intelligent Technology Chinese Academy of Sciences Chongqing China University of Chinese Academy of Sciences Beijing China Preparatory institute for Engineering of Nabeul IPEIN University of Carthage Campus Universitaire Merazka Tunisia NANOMISENE Lab LR16CRMN01 Centre for Research on Microelectronics and Nanotechnology of Sousse Technopole of Sousse Sousse Tunisia University of sousse Higher Institute of Applied Sciences and Technology of Sousse GREENS-ISSAT Cité Ettafala Sousse Tunisia

Binding kinetics enhancement of a microfluidic biosensor into a micro-channel through the application of a supplementary mechanism has received tremendous attention because of the obtained significant enhancement factor. However, biosensor’s performance enhancement using only simple channel engineering is still rarely realized. Herein, we present a novel design of a complex reactive protein (CRP) biosensor into a U-shaped channel with a sensitive membrane located in the middle of the bent zone. Various critical factors affecting the equilibrium binding time are numerically investigated. The turn geometry is then optimized when the arc length along the inner and outer radii is almost the same, which leads to locally minimizing the channel height overhead the reaction surface and improves the analyte transport towards the sensing area. The numerical studies reveal that applying a local narrowing above the reaction surface can notably enhance the trapping and the surface formation of complex antibody-antigen, thus upgrading the biosensor performance. This work puts a significant advance towards microfluidic channel engineering and the exploration of micro-flow injection experimental studies.

关键词： Finite Elements Method Binding Reaction CRP Biosensor Microfluidic System Microchannel Turn Numerical Simulation

Mineralogical and Geochemical Characteristics of Caprock Formations Used for Storage and Sequestration of Carbon Dioxide

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Journal of Minerals and Materials Characterization and Engineering 2015年第5期3卷 409-419页

作者： Hedi Jedli Hachem Hedfi Abdessalem Jbara Souhail Bouzgarrou Khalifa Slimi National Engineering School of Monastir University Monastir Tunisia higher institute for Sciences and Energy Technology Gafsa University Gafsa Tunisia National Engineering School of Tunis Tunis El Manar University Tunis Tunisia higher institute for transport and logistics Sousse University Sousse Tunisia

The main objective of the present study is to characterize cap rock formation used for geological storage of carbon dioxide (CO2). The petrophysical properties of several rocks were studied before CO2 injection. This step is necessary for an understanding of CO2-brine-rock interactions. The mineralogical composition of several clay samples collected from real storage sites located in the south of Tunisia was determined by X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) coupled to a probe EDS, infrared spectroscopy, thermal analysis and fluorescence spectra. The obtained experimental results reveal that illite, calcite and quartz are the dominant clay minerals. Dolomite and albite are also present. Besides, SEM analysis shows laminated structure for these samples which suggests low crystallinity. This sample contains a higher content of Fe, Cl, Ca and O. The clay cover may also be useful in storage process by immobilizing the migration of CO2 outer of the geological site and activating the process of mineral sequestration.

关键词： Carbon Dioxide Storage Cap Rock Clay X-Ray Diffraction Scanning Electron Microscopy Thermal Analysis Infrared Spectroscopy Fluorescence Spectra

Drivers’ EEG Responses to Different Distraction Tasks

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Automotive Innovation 2023年第1期6卷 20-31页

作者： Guofa Li Xiaojian Wu Arno Eichberger Paul Green Cristina Olaverri‑Monreal Weiquan Yan Yechen Qin Yuezhi Li College of Mechanical and Vehicle Engineering Chongqing UniversityChongqing 400044China institute of Human Factors and Ergonomics College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060China institute of Automotive Engineering Graz University of Technology8010 GrazAustria University of Michigan transportation Research institute and Department of Industrial and Operations Engineering University of MichiganAnn ArborMI 48109USA Chair ITS‑Sustainable transport logistics 4.0 Johannes Kepler University4040 LinzAustria Department of Mechanical Engineering Beijing Institute of TechnologyBeijing 100081China Laboratory of Neural Engineering College of Mechatronics and Control EngineeringShenzhen UniversityShenzhen 518060China

Driver distraction has been deemed a major cause of traffic accidents.However,drivers’brain response activities to different distraction types have not been well investigated.The purpose of this study is to investigate the response of electroencephalography(EEG)activities to different distraction tasks.In the conducted simulation tests,three secondary tasks(i.e.,a clock task,a 2-back task,and a navigation task)are designed to induce different types of driver distractions.Twenty-four participants are recruited for the designed tests,and differences in drivers’brain response activities concerning distraction types are investigated.The results show that the differences in comprehensive distraction are more significant than that in single cognitive distraction.Friedman test and post hoc two-tailed Nemenyi test are conducted to further identify the differences in band activities among brain regions.The results show that the theta energy in the frontal lobe is significantly higher than that in other brain regions in distracted driving,whereas the alpha energy in the temporal lobe significantly decreases compared to other brain regions.These results provide theoretical references for the development of distraction detection systems based on EEG signals.

关键词： Driving safety Driver distraction EEG Autonomous vehicle

Experimental Adsorption and Modelisation of CO<SUB>2</SUB>on Adsorbents Collected from Elborma Field in South Tunisia

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Journal of Surface Engineered Materials and Advanced Technology 2015年第1期5卷 52-63页

作者： Souhail Bouzgarrou Hadi Jedli Nadra Stiti Nourdine Hamdi Khalifa Slimi Mohamed Bagana Research Unity of Energetic and Environment National Engineering School of Tunis Tunis El Manar University Tunis Tunisia Department of Energetic National Engineering School of Monastir Monastir Tunisia Materials Research Laboratory Department of Chemical National Engineering School of Gabès Gabès Tunisia Department of Material Higher Institute for Water Science and Technologies of Gabès Gabès Tunisia higher institute for transport and logistics of sousse Sousse Tunisia

In order to select the best adsorbant for CO2 sequestration, this study deals the interaction between clay, Triassic sandstone and Jurassic evaporate and CO2. These materials have been used as sorbents. To choose the adequate geological layers for sequestration and with minimum risk of leakage, adsorbent characterizations were investigated using X-ray diffraction, SEM and surface area analysis, structural and textural shapes of these materials have been investigated too. The elution chromatography in gaseous phase has been employed to determine the adsorption isotherms of adsorbed CO2 for each adsorbent. Then, the treatment of the experimental data allowed us to compare each CO2/adsorbent couple. The adsorption isotherms were modeled using the Langmir and Freundlich models. A thermodynamic comparison between the different adsorbents will also be provided. Experimental results show that clay and Triassic sandstone have the highest rate of adsorption amount. It has been also found that the Langmuir model is the most appropriate one to describe the phenomenon of CO2 adsorption on clay. However, for the other adsorbents (i.e. Triassic sandstone and Jurassic evaporates) the two-models are adequate.

关键词： Adsorption Selectivity Geologic Materials Surface Area Analysis Elution Chromatography Langmuir Freundlich Modelisation

Wireless distributed computing for cyclostationary feature detection

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Digital Communications and Networks 2016年第1期2卷 46-55页

作者： Mohammed I.M. Alfaqawi Jalel Chebil Mohamed Hadi Habaebi Dinesh Datla Department of Electrical and Computer Engineering International Islamic University Malaysia (IIUM) Malaysia. Innovation of Communicant and Cooperative Mobiles Laboratory INNOV'COM Department of Technology and Engineering in Transport ISTLS University of Sousse Sousse Tunisia Electrical and Computer Engineering Department IIUM-Malaysia Malaysia Harris Corporation Lynchburg VA USA

Recently, wireless distributed computing (WDC) concept has emerged promising manifolds improvements to current wireless technologies. Despite the various expected benefits of this concept, significant drawbacks were addressed in the open literature. One of WDC key challenges is the impact of wireless channel quality on the load of distributed computations. Therefore, this research investigates the wireless channel impact on WDC performance when the latter is applied to spectrum sensing in cognitive radio (CR) technology. However, a trade-off is found between accuracy and computational complexity in spectrum sensing approaches. Increasing these approaches accuracy is accompanied by an increase in computational complexity. This results in greater power consumption and processing time. A novel WDC scheme for cyclostationary feature detection spectrum sensing approach is proposed in this paper and thoroughly investigated. The benefits of the proposed scheme are firstly presented. Then, the impact of the wireless channel of the proposed scheme is addressed considering two scenarios. In the first scenario, workload matrices are distributed over the wireless channel. Then, a fusion center combines these matrices in order to make a decision. Meanwhile, in the second scenario, local decisions are made by CRs, then, only a binary flag is sent to the fusion center.

关键词： Cognitive radio Spectrum sensing Cyclostationary feature detection FFT time smoothing algorithms Wireless distributed computing