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An Optimized SW/HW AVMF Design Based on High-Level Synthesis Flow for Color Images

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Computers, Materials & Continua 2021年第9期68卷 2925-2943页

作者： Turki MAlanazi Ahmed ben Atitallah imen Abid Department of Electrical Engineering Jouf UniversitySakakaAljoufSaudi Arabia LETI(E.N.I.S.) University of SfaxSfaxTunisia

In this paper,a software/hardware High-level Synthesis(HLS)design is proposed to compute the Adaptive Vector Median Filter(AVMF)in *** fact,this filter is known by its excellent impulsive noise suppression and chromaticity *** software(SW)study of this filter demonstrates that its implementation is too *** purpose of this work is to study the impact of using an HLS tool to design ideal floating-point and optimized fixed-point hardware(HW)architectures for the AVMF filter using square root function(ideal HW)and ROM memory(optimized HW),respectively,to select the best HLS architectures and to design an efficient HLS software/hardware(SW/HW)embedded AVMF design to achieve a trade-off between the processing time,power consumption and hardware *** that purpose,some approximations using ROM memory were proposed to perform the square root and develop a fixed-point AVMF *** that,the best solution generated for each HLS design was integrated in the SW/HW environment and evaluated under ZC702 FPGA *** experimental results showed a reduction of about 65%and 98%in both the power consumption and processing time for the ideal SW/HW implementation relative to the ideal SW implementation for an AVMF filter with the same image quality,***,the power consumption and processing time of the optimized SW/HW are 70%and 97%less than the optimized SW implementation,*** addition,the Look Up Table(LUTs)percentage,power consumption and processing time used by the optimized SW/HW design are improved by nearly 45%,18%and 61%compared the ideal SW/HW design,respectively,with slight decrease in the image quality.

关键词： AVMF filter SW/HW design HLS flow ZC702 FPGA platform

Active fault tolerant control design for stochastic Interval Type-2 Takagi-Sugeno fuzzy model

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International Journal of Intelligent Computing and Cybernetics 2018年第3期11卷 404-422页

作者： imen Maalej Donia ben Halima Abid Chokri Rekik Control and Energy Management Laboratory National Engineering School of SfaxUniversity of SfaxSfaxTunisia

Purpose-The purpose of this paper is to look at the problem of fault tolerant control(FTC)for discrete time nonlinear system described by Interval Type-2 Takagi–Sugeno(IT2 TS)fuzzy model subjected to stochastic noise and actuator ***/methodology/approach–An IT2 fuzzy augmented state observer is first developed to estimate simultaneously the system states and the actuator faults since this estimation is required for the design of the FTC control ***,based on the information of the states and the faults estimate,an IT2 fuzzy state feedback controller is conceived to compensate for the faults effect and to ensure a good tracking performance between the healthy system and the faulty *** conditions for the existence of the IT2 fuzzy controller and the IT2 fuzzy observer are given in terms of linear matrix inequalities which can be solved using a two-step computing ***–The paper opted for simulation results which are applied to the three-tank *** results are presented to illustrate the effectiveness of the proposed FTC ***/value–In this paper,the problem of active FTC design for noisy and faulty nonlinear system represented by IT2 TS fuzzy model is *** developed IT2 fuzzy fault tolerant controller is designed such that it can guarantee the stability of the closed-loop ***,the proposed controller allows to accommodate for faults,presents a satisfactory state tracking performance and outperforms the traditional type-1 fuzzy fault tolerant controller.

关键词： Fuzzy logic Fault tolerant control Intelligent control Interval Type-2 Takagi-Sugeno(IT2 TS)fuzzy model Linear matrix inequalities

PD-1 induction through TCR activation is partially regulated by endogenous TGF-β

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Cellular & Molecular Immunology 2015年第5期12卷 648-649页

作者： Raja Rekik Nadia Belhadj Hmida Ahlem ben Hmid imen Zamali ns Kammoun Melika ben Ahmed Laboratory of Transmission Control and Immunobiology of Infection Institut Pasteur de Tunis Tunis Tunisia Laboratory of Clinical Immunology Institut Pasteur de Tunis Tunis Tunisia Faculte de Medecine de Tunis Universite Tunis El Manar Tunis Tunisia

The programmed death 1 （PD-1） pathway is a way of inhibiting T-cell proliferation and cytokine production. This pathway is important for maintaining peripheral tolerance. Different mechanisms and cytokines are involved in this pathway. Herein, we show the contribution of endogenous TGF-β to increasing PD-1 expression after T cell receptor （TCR） activation.

关键词： TGF-β 内源性 TCR 诱导活化细胞因子 T细胞增殖 T细胞受体

Some Generalized q-Bessel Type Wavelets and Associated Transforms

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Analysis in Theory and Applications 2018年第1期34卷 57-76页

作者： imen Rezgui Anouar ben Mabrouk Algerba Number Theory and Nonlinear Analysis Research UnitUR11ES50Department of MathematicsFaculty of Sciences Department of Mathematics Higher Institute of Applied Mathematics and InformaticsStreet of Assad Ibn AlfouratKairouan University Department of Mathematics Faculty of SciencesUniversity of Tabuk

In this paper wavelet functions are introduced in the context of q-theory. We precisely extend the case of Bessel and q-Bessel wavelets to the generalized q-Bessel wavelets. Starting from the （q,v）-extension （v = （α,β）） of the q-case, associated generalized q-wavelets and generalized q-wavelet transforms are developed for the new context. Reconstruction and Placherel type formulas are proved.

关键词： Wavelets Besel function q-Bessel function modified Bessel functions generalizedq-Bessel functions q-Bessel wavelets.

Evaluating the Potentials of PLSR and SVR Models for Soil Properties Prediction Using Field Imaging,Laboratory VNIR Spectroscopy and Their Combination

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Computer Modeling in Engineering & Sciences 2023年第8期136卷 1399-1425页

作者： Emna Karray Hela Elmannai Elyes Toumi Mohamed Hedi gharbia Souham Meshoul Hamouda Aichi Zouhaier ben Rabah Center of Mapping and Remote Sensing Tunis1073Tunisia Department of Information Technology College of Computer and Information SciencesPrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh11671Saudi Arabia Digital Research Centre of Sfax Sfax3021Tunisia Higher School of Agriculture of Mograne LR03AGR02SPADDUniversity of CarthageCarthage1054Tunisia

Pedo-spectroscopy has the potential to provide valuable information about soil physical,chemical,and biological ***,wemay predict soil properties usingVNIRfield imaging spectra(IS)such as Prisma satellite data or laboratory spectra(LS).The primary goal of this study is to investigate machine learning models namely Partial Least Squares Regression(PLSR)and Support Vector Regression(SVR)for the prediction of several soil properties,including clay,sand,silt,organic matter,nitrate NO3-,and calcium carbonate CaCO_(3),using five VNIR spectra dataset combinations(%IS,%LS)as follows:C1(0%IS,100%LS),C2(20%IS,80%LS),C3(50%IS,50%LS),C4(80%IS,20%LS)and C5(100%IS,0%LS).Soil samples were collected at bare soils and at the upper(0–30 cm)*** data set has been split into a training dataset 80%of the collected data(n=248)and a validation dataset 20%of the collected data(n=61).The proposed PLSR and SVR models were trained then tested for each dataset *** to our results,SVR outperforms PLSR for both:C1(0%IS,100%LS)and C5(100%IS,0%LS).For Soil Organic Matter(SOM)prediction,it achieves(R^(2)=0.79%,RMSE=1.42%)and(R^(2)=0.76%,RMSE=1.3%),*** data fusion has improved the soil property *** highest improvement was obtained for the SOM property(R^(2)=0.80%,RMSE=1.39)when using the SVR model and applying the second Combination C2(20% of IS and 80%LS).

关键词： Soil VNIR field imaging spectroscopy PLSR SVR VNIR data combination

Bioplastic reinforced with parthenocarpic date palm fibers:Characterization and microorganisms involved in degradation

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Food Bioscience 2023年第1期51卷 1202-1211页

作者： Hammadi Hamza imen Bettaieb Ameni benltoufa Achraf Ghorbal Hela ben Ahmed Walid Elfalleh Arid and Oases Cropping Laboratory Arid Area InstituteMedenine4119Tunisia Energy WaterEnvironment and Process Laboratory(LR18ES35)National Engineering School of GabesUniversity of GabesGabes6072Tunisia Research Unit Advanced Materials Applied MechanicsInnovative Processes and EnvironmentUR22ES04Higher Institute of Applied Sciences and Technology of Gabes(ISSATG)University of GabesGabes6072Tunisia Laboratory of Plant Soil and Environment Interactions LR21ES01 Department of BiologyFaculty of Science of Tunis2092 TunisUniversity of Tunis EL ManarTunis1068Tunisia

The environment suffers more and more from the accumulation of plastics made by petrochemical rows,which are *** is why this study aims to develop bio-based films by incorporating fibers concentrate of parthenocarpic date(FCPD)as easily available *** FCPD based film showed enhanced thickness,water solubility,phenol content and antioxidant ***,the transparency was reduced which enhanced the film opacity by the addition of *** electronic microscopy(SEM)showed homogeneity between fibers and the constituents of the *** addition of FCPD did not change the FTIR peaks in comparison with starch-based *** hydroxyl index value and water contact angle showed that the hydrophilicity increases with the film FCPD *** addition,the FCPDs have enhanced the microbial biodegradation of the developed films as showed by *** PCR using specific primers for nine target microbial groups showed that fungi were the predominant agent of the *** bacteria,realtime PCR showed thatβ-Proteobacteria,Acidobacteria,Bacteriodetes andα-Proteobacteria groups were involved in film biodegradation.

关键词： Parthenocarpic date Fibers Bioplastic Biodegradation SEM qPCR

Optical,UV-Vis spectroscopy studies,electrical and dielectric properties of transition metal-based of the novel organic–inorganic hybrid(C_(6)H_(10)N_(2))(Hg_(2)Cl_(5))_(2)·3H_(2)O

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Journal of Advanced Dielectrics 2019年第5期9卷 72-86页

作者： imen ben Saad Najeh Hannachi Thierry Roisnel Faouzi Hlel Laboratory of Spectroscopic Characterization and Optics of Materials Faculty of Sciences University of Sfax B.P.11713000 SfaxTunisia University of Rennes CNRSISCR(Institut des Sciences Chimiques de Rennes)–UMR 6226 F-35000 RennesFrance

In this work,we are interested in the synthesis of new hybrid material(C_(6)H_(10)N_(2))(Hg_(2)Cl_(5))_(2)·3H_(2)O grown by hydrothermal methods.X-ray diffraction indicates that this compound crystallizes at 150(2)K in the monoclinic system with C2/c space group,with the following unit cell parameters:a=19:6830(15)Å,b=18:1870(15)Å,c=6:8567(6)Å,β=93:224ð3Þ○and Z=*** the other hand,the optical properties of this compound were studied using ultraviolet-visible(UV-Vis)spectroscopy in the range 200-800 ***,the optical absorbances are used to determine the absorption coefficientαand the optical band gap E g,so the Tauc model was used to determine the optical gap energy of the compound(C_(6)H_(10)N_(2))(Hg_(2)Cl_(5))_(2)·3H_(2)*** analysis of the results revealed the existence of optical allowed indirect transition mechanisms with the band gap energy equal to(2.37 eV)for liquid and(4.33 eV)for *** measurements indicate that the electrical and dielectric properties are strongly dependent on both temperature and *** plots(Z'' versus Z ')show that the conductivity behavior is accurately represented by an equivalent circuit model which consists of a series combination of bulk and grain ***,the angular frequency dependence plots of the real and imaginary parts,ε' andε'',of complex dielectric permittivityε*and tanδlosses at several temperatures between 303 and 453 K were studied for the title ***,the modulus plots can be characterized by the presence of two relaxation peaks.

关键词： Optical properties UV-Vis spectroscopy the impedance spectroscopy the temperature(303-453 K)and frequency dependence of the electrical conductivity and the dielectric properties

Potassium Bromate-induced Changes in the Adult Mouse Cerebellum Are Ameliorated by Vanillin

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Biomedical and Environmental Sciences 2018年第2期31卷 115-125页

作者： Hajer ben Saad Dorra Driss imen Jaballi Hanen Ghozzi Ons Boudawara Michael Droguet Christian Magne Monsef Nasri Khaled Mounir Zeghal Ahmed Hakim Ibtissem ben Amara Laboratory of Pharmacology University of SfaxFaculty of Medicine3029 SfaxTunisia Laboratory of Enzyme engineering and Microbiology National Engineering School in SfaxUniversity of SfaxB.P.11733038 SfaxTunisia Centre of Biotechnology of Sfax P.O.Box 11773018 SfaxTunisia Anatomopathology Laboratory University of SfaxHabib Bourguiba Hospital3029 SfaxTunisia EA 4324 ORPHY Faculty of MedicineUniversity of Brest29238 Brest CedexFrance EA 2219 Geoarchitecture University of BrestUFR Sciences&Techniques29238 Brest Cedex 3France

Objective The current study aimed to elucidate the effect of vanillin on behavioral changes, oxidative stress, and histopathological changes induced by potassium bromate （KBrO3）, an environmental pollutant, in the cerebellum of adult *** The animals were divided into four groups： group 1 served as a control, group 2 received KBrO3, group 3 received KBrO3 and vanillin, and group 4 received only vanillin. We then measured behavioral changes, oxidative stress, and molecular and histological changes in the *** We observed significant behavioral changes in KBrO3-exposed mice. When investigating redox homeostasis in the cerebellum, we found that mice treated with KBrO3 had increased lipid peroxidation and protein oxidation in the cerebellum. These effects were accompanied by decreased Na＋-K＋ and Mg2＋ ATPase activity and antioxidant enzyme gene expression when compared to the control group. Additionally, there was a significant increase in cytokine gene expression in KBrO3-treated mice. Microscopy revealed that KBrO3 intoxication resulted in numerous degenerative changes in the cerebellum that were substantially ameliorated by vanillin supplementation. Co-administration of vanillin blocked the biochemical and molecular anomalies induced by *** Our results demonstrate that vanillin is a potential therapeutic agent for oxidative stress associated with neurodegenerative diseases.

关键词： Cerebellum Behavior Potassium bromate Vanillin ATPases Genes expression

Lymphoid tyrosine phosphatase R620W variant and inflammatory bowel disease in Tunisia

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World Journal of Gastroenterology 2010年第4期16卷 479-483页

作者： imen Sfar Walid ben Aleya Leila Mouelhi Houda Aouadi Thouraya ben Rhomdhane Mouna Makhlouf Salwa Ayed-Jendoubi Houda Gargaoui Taoufik Najjar Taieb ben Abdallah Khaled Ayed Yousr Gorgi Laboratory of Immunology Charles Nicolle HospitalTunis 1006Tunisia Department of Gastroenterology Charles Nicolle HospitalTunis 1006Tunisia

AIM:To assess the possible association between PTPN22(R620W) gene polymorphism and inflammatory bowel disease(IBD).METHODS:One hundred and sixty-four patients with IBD 105 Crohn's disease(CD) and 59 ulcerative colitis(UC) and 100 healthy controls were *** of the PTPN22 gene 1858C→T polymorphism was performed by restriction fragment length polymorphism-polymerase chain reaction with Rsa Ⅰ ***:The genotypic and allelic frequencies of(R620W) PTPN22 gene polymorphism reveal a significant association of the PTPN22 620-W allele with IBD,compared to the healthy control group(OR:17.81,95% CI:4.18-21.86,P = 0.00001).Nevertheless,nodifference in this polymorphism was found between CD and UC *** significant association was found between the frequencies of genotypes of the PTPN22 gene with either the clinical features such as sex,age,age at disease onset,and extent of colitis,or the production of serological markers(anti-Saccharomyces cerevisiae antibody in CD and perinuclear anti-neutrophil cytoplasmic antibody in UC).CONCLUSION:These observations confirm the association of IBD susceptibility with the PTPN22 1858T(620-W) allele in Tunisian patients.

关键词： Inflammatory bowel disease PTPN22 Genetic polymorphism Genetic susceptibility