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Salhi</title> <meta name="description" content="Search results for: Hicham Salhi"> <meta name="keywords" content="Hicham Salhi"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="Hicham Salhi" name="q" aria-label="Search"> <button class="btn btn-light my-2 my-sm-0" type="submit"><i class="fas fa-search"></i></button> </form> </div> <div class="collapse navbar-collapse mt-1" id="navbarMenu"> <ul class="navbar-nav ml-auto align-items-center" id="mainNavMenu"> <li class="nav-item"> <a class="nav-link" href="https://waset.org/conferences" title="Conferences in 2024/2025/2026">Conferences</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/disciplines" title="Disciplines">Disciplines</a> </li> <li 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Hicham Salhi"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 44</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Hicham Salhi</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">44</span> Numerical Study of Natural Convection Heat Transfer Performance in an Inclined Cavity: Nanofluid and Random Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Salhi">Hicham Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Si-Ameur"> Mohamed Si-Ameur</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadjib%20Chafai"> Nadjib Chafai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Natural convection of a nanofluid consisting of water and nanoparticles (Ag or TiO2) in an inclined enclosure cavity, has been studied numerically, heated by a (random temperature, based on the random function). The governing equations are solved numerically using the finite-volume. Results are presented in the form of streamlines, isotherms, and average Nusselt number. In addition, a parametric study is carried out to examine explicitly the volume fraction effects of nanoparticles (Ψ= 0.1, 0.2), the Rayleigh number (Ra=103, 104, 105, 106),the inclination angle of the cavity( égale à 0°, 30°, 45°, 90°, 135°, 180°), types of temperature (constant ,random), types of (NF) (Ag andTiO2). The results reveal that (NPs) addition remarkably enhances heat transfer in the cavity especially for (Ψ= 0.2). Besides, the effect of inclination angle and type of temperature is more pronounced at higher Rayleigh number. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanofluid" title="nanofluid">nanofluid</a>, <a href="https://publications.waset.org/abstracts/search?q=natural%20convection" title=" natural convection"> natural convection</a>, <a href="https://publications.waset.org/abstracts/search?q=inclined%20cavity" title=" inclined cavity"> inclined cavity</a>, <a href="https://publications.waset.org/abstracts/search?q=random%20temperature" title=" random temperature"> random temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=finite-volume" title=" finite-volume"> finite-volume</a> </p> <a href="https://publications.waset.org/abstracts/45433/numerical-study-of-natural-convection-heat-transfer-performance-in-an-inclined-cavity-nanofluid-and-random-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45433.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">287</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Modeling and Simulation of Practical Metamaterial Structures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Salhi">Ridha Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mondher%20Labidi"> Mondher Labidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Fethi%20Choubani"> Fethi Choubani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Metamaterials have attracted much attention in recent years because of their electromagnetic exquisite proprieties. We will present, in this paper, the modeling of three metamaterial structures by equivalent circuit model. We begin by modeling the SRR (Split Ring Resonator), then we model the HIS (High Impedance Surfaces), and finally, we present the model of the CPW (Coplanar Wave Guide). In order to validate models, we compare the results obtained by an equivalent circuit models with numerical simulation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metamaterials" title="metamaterials">metamaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=SRR" title=" SRR"> SRR</a>, <a href="https://publications.waset.org/abstracts/search?q=HIS" title=" HIS"> HIS</a>, <a href="https://publications.waset.org/abstracts/search?q=CPW" title=" CPW"> CPW</a>, <a href="https://publications.waset.org/abstracts/search?q=IDC" title=" IDC"> IDC</a> </p> <a href="https://publications.waset.org/abstracts/32369/modeling-and-simulation-of-practical-metamaterial-structures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32369.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">429</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">42</span> Nanofluids and Hybrid Nanofluids: Comparative Study of Mixed Convection in a Round Bottom Flask</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Salhi">Hicham Salhi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research project focuses on the numerical investigation of the mixed convection of Hybrid nanofluids in a round bottom flask commonly used in organic chemistry synthesis. The aim of this study is to improve the thermal properties of the reaction medium and enhance the rate of chemical reactions by using hybrid nanofluids. The flat bottom wall of the flask is maintained at a constant high temperature, while the top, left, and right walls are kept at a low temperature. The nanofluids used in this study contain suspended Cu and Al2O3 nanoparticles in pure water. The governing equations are solved numerically using the finite-volume approach and the Boussinesq approximation. The effects of the volume fraction of nanoparticles (φ) ranging from 0% to 5%, the Rayleigh number from 103 to 106, and the type of nanofluid (Cu and Al2O3) on the flow streamlines, isotherm distribution, and Nusselt number are examined in the simulation. The results indicate that the addition of Cu and Al2O3 nanoparticles increases the mean Nusselt number, which improves heat transfer and significantly alters the flow pattern. Moreover, the mean Nusselt number increases with increasing Rayleigh number and volume fraction, with Cu- Al2O3 hybrid nanofluid producing the best results. This research project focuses on the numerical investigation of the mixed convection of Hybrid nanofluids in a round bottom flask commonly used in organic chemistry synthesis. The aim of this study is to improve the thermal properties of the reaction medium and enhance the rate of chemical reactions by using hybrid nanofluids. The flat bottom wall of the flask is maintained at a constant high temperature, while the top, left, and right walls are kept at a low temperature. The nanofluids used in this study contain suspended Cu and Al2O3 nanoparticles in pure water. The governing equations are solved numerically using the finite-volume approach and the Boussinesq approximation. The effects of the volume fraction of nanoparticles (φ) ranging from 0% to 5%, the Rayleigh number from 103 to 106, and the type of nanofluid (Cu and Al2O3) on the flow streamlines, isotherm distribution, and Nusselt number are examined in the simulation. The results indicate that the addition of Cu and Al2O3 nanoparticles increases the mean Nusselt number, which improves heat transfer and significantly alters the flow pattern. Moreover, the mean Nusselt number increases with increasing Rayleigh number and volume fraction, with Cu- Al2O3 hybrid nanofluid producing the best results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bottom%20flask" title="bottom flask">bottom flask</a>, <a href="https://publications.waset.org/abstracts/search?q=mixed%20convection" title=" mixed convection"> mixed convection</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20nanofluids" title=" hybrid nanofluids"> hybrid nanofluids</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a> </p> <a href="https://publications.waset.org/abstracts/164986/nanofluids-and-hybrid-nanofluids-comparative-study-of-mixed-convection-in-a-round-bottom-flask" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164986.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">87</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">41</span> Resistance to Change as a Lever of Innovation: Case of Tangier, Tetouan and Hoceima Region, Morocco</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jihane%20Abdessadak">Jihane Abdessadak</a>, <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Achelhi"> Hicham Achelhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Kamal%20Reklaoui"> Kamal Reklaoui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For any company or organization, change must be natural and binding in order to evolve its business, protect its durability and remain competitive. "Adapt or disappear". But how often managers, leaders or employees develop astonishing ideas that could improve several aspects of the organization and the feedback is less that encouraging and people give unrealistic judgments just to escape change. In this paper, we are going to discuss what we do know about change and resistance to change and what we can do to tame this phenomenon and, above all, the main steps that can follow an idea man in the delicate and decisive implementation of innovations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=innovation" title="innovation">innovation</a>, <a href="https://publications.waset.org/abstracts/search?q=change" title=" change"> change</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance%20to%20change%2Finnovation" title=" resistance to change/innovation"> resistance to change/innovation</a>, <a href="https://publications.waset.org/abstracts/search?q=barriers%20to%20innovation" title=" barriers to innovation"> barriers to innovation</a>, <a href="https://publications.waset.org/abstracts/search?q=levers%20of%20innovation" title=" levers of innovation"> levers of innovation</a> </p> <a href="https://publications.waset.org/abstracts/50176/resistance-to-change-as-a-lever-of-innovation-case-of-tangier-tetouan-and-hoceima-region-morocco" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50176.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">296</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> Investigation of Zinc Corrosion in Tropical Soil Solution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Lebrini">M. Lebrini</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Salhi"> L. Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Deyrat"> C. Deyrat</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Roos"> C. Roos</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Nait-Rabah"> O. Nait-Rabah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presents a large experimental study on the corrosion of zinc in tropical soil and in the ground water at the various depths. Through this study, the corrosion rate prediction was done on the basis of two methods the electrochemical method and the gravimetric. The electrochemical results showed that the corrosion rate is more important at the depth levels 0 m to 0.5 m and 0.5 m to 1 m and beyond these depth levels, the corrosion rate is less important. The electrochemical results indicated also that a passive layer is formed on the zinc surface. The found SEM and EDX micrographs displayed that the surface is extremely attacked and confirmed that a zinc oxide layer is present on the surface whose thickness and relief increase as the contact with soil increases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=soil%20corrosion" title="soil corrosion">soil corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=galvanized%20steel" title=" galvanized steel"> galvanized steel</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20technique" title=" electrochemical technique"> electrochemical technique</a>, <a href="https://publications.waset.org/abstracts/search?q=SEM%20and%20EDX" title=" SEM and EDX"> SEM and EDX</a> </p> <a href="https://publications.waset.org/abstracts/153148/investigation-of-zinc-corrosion-in-tropical-soil-solution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153148.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">127</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">39</span> Key Concepts of 5th Generation Mobile Technology </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Magri%20Hicham">Magri Hicham</a>, <a href="https://publications.waset.org/abstracts/search?q=Noreddine%20Abghour"> Noreddine Abghour</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Ouzzif"> Mohamed Ouzzif</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The 5th generation of mobile networks is term used in various research papers and projects to identify the next major phase of mobile telecommunications standards. 5G wireless networks will support higher peak data rate, lower latency and provide best connections with QoS guarenty. In this article, we discuss various promising technologies for 5G wireless communication systems, such as IPv6 support, World Wide Wireless Web (WWWW), Dynamic Adhoc Wireless Networks (DAWN), BEAM DIVISION MULTIPLE ACCESS (BDMA), Cloud Computing and cognitive radio technology. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=WWWW" title="WWWW">WWWW</a>, <a href="https://publications.waset.org/abstracts/search?q=BDMA" title=" BDMA"> BDMA</a>, <a href="https://publications.waset.org/abstracts/search?q=DAWN" title=" DAWN"> DAWN</a>, <a href="https://publications.waset.org/abstracts/search?q=5G" title=" 5G"> 5G</a>, <a href="https://publications.waset.org/abstracts/search?q=4G" title=" 4G"> 4G</a>, <a href="https://publications.waset.org/abstracts/search?q=IPv6" title=" IPv6"> IPv6</a>, <a href="https://publications.waset.org/abstracts/search?q=Cloud%20Computing" title=" Cloud Computing "> Cloud Computing </a> </p> <a href="https://publications.waset.org/abstracts/27718/key-concepts-of-5th-generation-mobile-technology" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27718.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">514</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> A Neural Approach for Color-Textured Images Segmentation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khalid%20Salhi">Khalid Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Miloud%20Jaara"> El Miloud Jaara</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Talibi%20Alaoui"> Mohammed Talibi Alaoui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present a neural approach for unsupervised natural color-texture image segmentation, which is based on both Kohonen maps and mathematical morphology, using a combination of the texture and the image color information of the image, namely, the fractal features based on fractal dimension are selected to present the information texture, and the color features presented in RGB color space. These features are then used to train the network Kohonen, which will be represented by the underlying probability density function, the segmentation of this map is made by morphological watershed transformation. The performance of our color-texture segmentation approach is compared first, to color-based methods or texture-based methods only, and then to k-means method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=segmentation" title="segmentation">segmentation</a>, <a href="https://publications.waset.org/abstracts/search?q=color-texture" title=" color-texture"> color-texture</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=fractal" title=" fractal"> fractal</a>, <a href="https://publications.waset.org/abstracts/search?q=watershed" title=" watershed"> watershed</a> </p> <a href="https://publications.waset.org/abstracts/51740/a-neural-approach-for-color-textured-images-segmentation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51740.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">346</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Circuit Models for Conducted Susceptibility Analyses of Multiconductor Shielded Cables</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saih%20Mohamed">Saih Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Rouijaa%20Hicham"> Rouijaa Hicham</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghammaz%20Abdelilah"> Ghammaz Abdelilah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents circuit models to analyze the conducted susceptibility of multiconductor shielded cables in frequency domains using Branin’s method, which is referred to as the method of characteristics. These models, Which can be used directly in the time and frequency domains, take into account the presence of both the transfer impedance and admittance. The conducted susceptibility is studied by using an injection current on the cable shield as the source. Two examples are studied, a coaxial shielded cable and shielded cables with two parallel wires (i.e., twinax cables). This shield has an asymmetry (one slot on the side). Results obtained by these models are in good agreement with those obtained by other methods. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=circuit%20models" title="circuit models">circuit models</a>, <a href="https://publications.waset.org/abstracts/search?q=multiconductor%20shielded%20cables" title=" multiconductor shielded cables"> multiconductor shielded cables</a>, <a href="https://publications.waset.org/abstracts/search?q=Branin%E2%80%99s%20method" title=" Branin’s method"> Branin’s method</a>, <a href="https://publications.waset.org/abstracts/search?q=coaxial%20shielded%20cable" title=" coaxial shielded cable"> coaxial shielded cable</a>, <a href="https://publications.waset.org/abstracts/search?q=twinax%20cables" title=" twinax cables "> twinax cables </a> </p> <a href="https://publications.waset.org/abstracts/25541/circuit-models-for-conducted-susceptibility-analyses-of-multiconductor-shielded-cables" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25541.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">516</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Cyber Attacks Management in IoT Networks Using Deep Learning and Edge Computing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asmaa%20El%20Harat">Asmaa El Harat</a>, <a href="https://publications.waset.org/abstracts/search?q=Toumi%20Hicham"> Toumi Hicham</a>, <a href="https://publications.waset.org/abstracts/search?q=Youssef%20Baddi"> Youssef Baddi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This survey delves into the complex realm of Internet of Things (IoT) security, highlighting the urgent need for effective cybersecurity measures as IoT devices become increasingly common. It explores a wide array of cyber threats targeting IoT devices and focuses on mitigating these attacks through the combined use of deep learning and machine learning algorithms, as well as edge and cloud computing paradigms. The survey starts with an overview of the IoT landscape and the various types of attacks that IoT devices face. It then reviews key machine learning and deep learning algorithms employed in IoT cybersecurity, providing a detailed comparison to assist in selecting the most suitable algorithms. Finally, the survey provides valuable insights for cybersecurity professionals and researchers aiming to enhance security in the intricate world of IoT. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=internet%20of%20things%20%28IoT%29" title="internet of things (IoT)">internet of things (IoT)</a>, <a href="https://publications.waset.org/abstracts/search?q=cybersecurity" title=" cybersecurity"> cybersecurity</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title=" machine learning"> machine learning</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20learning" title=" deep learning"> deep learning</a> </p> <a href="https://publications.waset.org/abstracts/188872/cyber-attacks-management-in-iot-networks-using-deep-learning-and-edge-computing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/188872.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">31</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> Antibacterial and Antifungal Activity of Essential Oil of Eucalyptus camendulensis on a Few Bacteria and Fungi</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Mehani">M. Mehani</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Salhi"> N. Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Valeria"> T. Valeria</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Ladjel"> S. Ladjel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Red River Gum (Eucalyptus camaldulensis) is a tree of the genus Eucalyptus widely distributed in Algeria and in the world. The value of its aromatic secondary metabolites offers new perspectives in the pharmaceutical industry. This strategy can contribute to the sustainable development of our country. Preliminary tests performed on the essential oil of Eucalyptus camendulensis showed that this oil has antibacterial activity vis-à-vis the bacterial strains (Enterococcus feacalis, Enterobacter cloaceai, Proteus microsilis, Escherichia coli, Klebsiella pneumonia, and Pseudomonas aeruginosa) and antifungic (Fusarium sporotrichioide and Fusarium graminearum). The culture medium used was nutrient broth Muller Hinton. The interaction between the bacteria and the essential oil is expressed by a zone of inhibition with diameters of MIC indirectly expression of. And we used the PDA medium to determine the fungal activity. The extraction of the aromatic fraction (essentially oil- hydrolat) of the fresh aerian part of the Eucalyptus camendulensis was performed by hydrodistillation. The average essential oil yield is 0.99%. The antimicrobial and fungal study of the essential oil and hydrosol showed a high inhibitory effect on the growth of pathogens. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=essential%20oil" title="essential oil">essential oil</a>, <a href="https://publications.waset.org/abstracts/search?q=Eucalyptus%20camendulensis" title=" Eucalyptus camendulensis"> Eucalyptus camendulensis</a>, <a href="https://publications.waset.org/abstracts/search?q=bacteria%20and%20fungi" title=" bacteria and fungi"> bacteria and fungi</a>, <a href="https://publications.waset.org/abstracts/search?q=red%20river%20gum" title=" red river gum"> red river gum</a> </p> <a href="https://publications.waset.org/abstracts/12323/antibacterial-and-antifungal-activity-of-essential-oil-of-eucalyptus-camendulensis-on-a-few-bacteria-and-fungi" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12323.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">234</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> Navigating the Complexity of Guillain-Barré Syndrome and Miller Fisher Syndrome Overlap Syndrome: A Pediatric Case Report</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kamal%20Chafiq">Kamal Chafiq</a>, <a href="https://publications.waset.org/abstracts/search?q=Youssef%20Hadzine"> Youssef Hadzine</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20Elmekkaoui"> Adel Elmekkaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Othmane%20Benlenda"> Othmane Benlenda</a>, <a href="https://publications.waset.org/abstracts/search?q=Houssam%20Rajad"> Houssam Rajad</a>, <a href="https://publications.waset.org/abstracts/search?q=Soukaina%20Wakrim"> Soukaina Wakrim</a>, <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Nassik"> Hicham Nassik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Guillain-Barré syndrome/Miller Fishe syndrome (GBS/MFS) overlap syndrome is an extremely rare variant of Guillain-Barré syndrome (GBS) in which Miller Fisher syndrome (MFS) coexists with other characteristics of GBS, such as limb weakness, paresthesia, and facial paralysis. We report the clinical case of a 12-year-old patient, with no pathological history, who acutely presents with ophthalmoplegia, areflexia, facial diplegia, and swallowing and phonation disorders, followed by progressive, descending, and symmetrical paresis affecting first the upper limbs and then the lower limbs. An albuminocytological dissociation was found in the cerebrospinal fluid study. Magnetic resonance imaging of the spinal cord showed enhancement and thickening of the cauda equina roots. The patient was treated with immunoglobulins with a favorable clinical outcome. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Guillain-Barr%C3%A9%20syndrome" title="Guillain-Barré syndrome">Guillain-Barré syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=Miller%20Fisher%20syndrome" title=" Miller Fisher syndrome"> Miller Fisher syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=overlap%20syndrome" title=" overlap syndrome"> overlap syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=anti-GQ1b%20antibodies" title=" anti-GQ1b antibodies"> anti-GQ1b antibodies</a> </p> <a href="https://publications.waset.org/abstracts/183387/navigating-the-complexity-of-guillain-barre-syndrome-and-miller-fisher-syndrome-overlap-syndrome-a-pediatric-case-report" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183387.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">77</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Effect of Gaseous Imperfections on the Supersonic Flow Parameters for Air in Nozzles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Merouane%20Salhi">Merouane Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Toufik%20Zebbiche"> Toufik Zebbiche</a> </p> <p class="card-text"><strong>Abstract:</strong></p> When the stagnation pressure of perfect gas increases, the specific heat and their ratio do not remain constant anymore and start to vary with this pressure. The gas doesn’t remain perfect. Its state equation change and it becomes for a real gas. In this case, the effects of molecular size and intermolecular attraction forces intervene to correct the state equation. The aim of this work is to show and discuss the effect of stagnation pressure on supersonic thermodynamical, physical and geometrical flow parameters, to find a general case for real gas. With the assumptions that Berthelot’s state equation accounts for the molecular size and intermolecular force effects, expressions are developed for analyzing supersonic flow for thermally and calorically imperfect gas lower than the dissociation molecules threshold. The designs parameters for supersonic nozzle like thrust coefficient depend directly on stagnation parameters of the combustion chamber. The application is for air. A computation of error is made in this case to give a limit of perfect gas model compared to real gas model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=supersonic%20flow" title="supersonic flow">supersonic flow</a>, <a href="https://publications.waset.org/abstracts/search?q=real%20gas%20model" title=" real gas model"> real gas model</a>, <a href="https://publications.waset.org/abstracts/search?q=Berthelot%E2%80%99s%20state%20equation" title=" Berthelot’s state equation"> Berthelot’s state equation</a>, <a href="https://publications.waset.org/abstracts/search?q=Simpson%E2%80%99s%20method" title=" Simpson’s method"> Simpson’s method</a>, <a href="https://publications.waset.org/abstracts/search?q=condensation%20function" title=" condensation function"> condensation function</a>, <a href="https://publications.waset.org/abstracts/search?q=stagnation%20pressure" title=" stagnation pressure"> stagnation pressure</a> </p> <a href="https://publications.waset.org/abstracts/19069/effect-of-gaseous-imperfections-on-the-supersonic-flow-parameters-for-air-in-nozzles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19069.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">447</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">32</span> Trophic Ecology of Sarotherodon Melanotheron Heudelotii and Tilapia Guineensis from the Banc D'Arguin National Park, Mauritania</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N%C3%A9n%C3%A9%20Gall%C3%A9%20Kide">Néné Gallé Kide</a>, <a href="https://publications.waset.org/abstracts/search?q=Mamadou%20Dia"> Mamadou Dia</a>, <a href="https://publications.waset.org/abstracts/search?q=Lemhaba%20Ould%20Yarba"> Lemhaba Ould Yarba</a>, <a href="https://publications.waset.org/abstracts/search?q=Youssouf%20Kone"> Youssouf Kone</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatimetou%20Mint%20Khalil"> Fatimetou Mint Khalil</a>, <a href="https://publications.waset.org/abstracts/search?q=Hajar%20Bouksir"> Hajar Bouksir</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghislane%20Salhi"> Ghislane Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Youn%C3%A8s%20Saoud"> Younès Saoud </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The diet of Sarotherodon melanotheron and Tilapia guineensis were investigated in the National Park of Banc d'Arguin (PNBA) from September 2012 to October 2013. A total of 499 individuals ranging in size between 219 and 400 mm total length of S. melanotheron (253 males and 246 females), and 280 individuals of T.guineensis (229 males and 51 females) ranged between 180 and 424mm total length. We used for studying the feeding habits of both two species the frequency of occurrence method. The coefficient of emptiness was 40.88% for S. melanotheron and 38.57% for T. guineensis. Both two species were herbivorous and very close feedings. Their diet consists of Seagrass, green, red, blue, and brown algae, diatoms, gastropods, bivalves, Crustaceans, and mud. The Seagrass and green algae were prey preference of these two species. The diet feeding showed that the composition varies slightly depending on the season and size of individuals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cichlidae" title="Cichlidae">Cichlidae</a>, <a href="https://publications.waset.org/abstracts/search?q=trophic%20ecology" title=" trophic ecology"> trophic ecology</a>, <a href="https://publications.waset.org/abstracts/search?q=National%20park" title=" National park"> National park</a>, <a href="https://publications.waset.org/abstracts/search?q=Banc%20d%27Arguin" title=" Banc d'Arguin"> Banc d'Arguin</a>, <a href="https://publications.waset.org/abstracts/search?q=Mauritania" title=" Mauritania"> Mauritania</a> </p> <a href="https://publications.waset.org/abstracts/16683/trophic-ecology-of-sarotherodon-melanotheron-heudelotii-and-tilapia-guineensis-from-the-banc-darguin-national-park-mauritania" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16683.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">794</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> Thermal and Caloric Imperfections Effect on the Supersonic Flow Parameters with Application for Air in Nozzles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Merouane%20Salhi">Merouane Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Toufik%20Zebbiche"> Toufik Zebbiche</a>, <a href="https://publications.waset.org/abstracts/search?q=Omar%20Abada"> Omar Abada</a> </p> <p class="card-text"><strong>Abstract:</strong></p> When the stagnation pressure of perfect gas increases, the specific heat and their ratio do not remain constant anymore and start to vary with this pressure. The gas does not remain perfect. Its state equation change and it becomes a real gas. In this case, the effects of molecular size and inter molecular attraction forces intervene to correct the state equation. The aim of this work is to show and discuss the effect of stagnation pressure on supersonic thermo dynamical, physical and geometrical flow parameters, to find a general case for real gas. With the assumptions that Berthelot’s state equation accounts for molecular size and inter molecular force effects, expressions are developed for analyzing supersonic flow for thermally and calorically imperfect gas lower than the dissociation molecules threshold. The designs parameters for supersonic nozzle like thrust coefficient depend directly on stagnation parameters of the combustion chamber. The application is for air. A computation of error is made in this case to give a limit of perfect gas model compared to real gas model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=supersonic%20flow" title="supersonic flow">supersonic flow</a>, <a href="https://publications.waset.org/abstracts/search?q=real%20gas%20model" title=" real gas model"> real gas model</a>, <a href="https://publications.waset.org/abstracts/search?q=Berthelot%E2%80%99s%20state%20equation" title=" Berthelot’s state equation"> Berthelot’s state equation</a>, <a href="https://publications.waset.org/abstracts/search?q=Simpson%E2%80%99s%20method" title=" Simpson’s method"> Simpson’s method</a>, <a href="https://publications.waset.org/abstracts/search?q=condensation%20function" title=" condensation function"> condensation function</a>, <a href="https://publications.waset.org/abstracts/search?q=stagnation%20pressure" title=" stagnation pressure"> stagnation pressure</a> </p> <a href="https://publications.waset.org/abstracts/18030/thermal-and-caloric-imperfections-effect-on-the-supersonic-flow-parameters-with-application-for-air-in-nozzles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18030.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">524</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> The Impact of Karst Structures on the Urban Environment in Semi-Arid Area</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benhammadi%20Hocine">Benhammadi Hocine</a>, <a href="https://publications.waset.org/abstracts/search?q=Chaffai%20Hicham"> Chaffai Hicham</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Urban development is often dependent on adequate land for expansion, except that sometimes these areas have vulnerability. This is the case of karst regions characterized by carbonate geological formations marked by the presence of cavities and cracks. The impact of climate variability in Cheria area marked by a growing shortage of rainfall, the impact resulted in the development of the vulnerability of these structures. This vulnerability has led to the appearance of collapse phenomena as well in both agricultural and urban areas. Two phenomena have emerged to explain the collapses, the first is assigned a filling process in the cavities, and the second is due to a weakening of the resistance that collapses limestone slab shear phenomenon. In urban areas, the weight of the buildings has increased the load on the limestone slab and accelerated the collapse. The analysis of the environmental process is in the context of our modest work, after which we indicate the appropriate methods for management policy of urban expansion. This management more preventive (upstream), much less expensive than remedial solutions (downstream) needed after the event and sometimes ineffective. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cheria" title="Cheria">Cheria</a>, <a href="https://publications.waset.org/abstracts/search?q=urban" title=" urban"> urban</a>, <a href="https://publications.waset.org/abstracts/search?q=climate%20variability" title=" climate variability"> climate variability</a>, <a href="https://publications.waset.org/abstracts/search?q=vulnerability%20karst%20collapse" title=" vulnerability karst collapse"> vulnerability karst collapse</a>, <a href="https://publications.waset.org/abstracts/search?q=extension" title=" extension"> extension</a>, <a href="https://publications.waset.org/abstracts/search?q=management" title=" management"> management</a> </p> <a href="https://publications.waset.org/abstracts/23603/the-impact-of-karst-structures-on-the-urban-environment-in-semi-arid-area" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23603.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">468</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Multisignature Schemes for Reinforcing Trust in Cloud Software-As-A-Service Services</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mustapha%20Hedabou">Mustapha Hedabou</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Azougaghe"> Ali Azougaghe</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Bentajer"> Ahmed Bentajer</a>, <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Boukhris"> Hicham Boukhris</a>, <a href="https://publications.waset.org/abstracts/search?q=Mourad%20Eddiwani"> Mourad Eddiwani</a>, <a href="https://publications.waset.org/abstracts/search?q=Zakaria%20Igarramen"> Zakaria Igarramen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Software-as-a-service (SaaS) is emerging as a dominant approach to delivering software. It encompasses a range of business, technical opportunities, issue, and challenges. Trustiness in the cloud services regarding the security and the privacy of the delivered data is the most critical issue with the SaaS model. In this paper, we survey the security concerns related to the SaaS model, and we propose the design of a trusted SaaS model that gives users more confidence into SaaS services by leveraging a trust in a neutral source code certifying authority. The proposed design is based on the use of the multisignature mechanism for signing the source code of the application service. In our model, the cloud provider acts as a root of trust by ensuring the integrity of the application service when it was running on its platform. The proposed design prevents insider attacks from tampering with application service before and after it was launched in a cloud provider platform. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cloud%20computing" title="cloud computing">cloud computing</a>, <a href="https://publications.waset.org/abstracts/search?q=SaaS%20Platform" title=" SaaS Platform"> SaaS Platform</a>, <a href="https://publications.waset.org/abstracts/search?q=TPM" title=" TPM"> TPM</a>, <a href="https://publications.waset.org/abstracts/search?q=trustiness" title=" trustiness"> trustiness</a>, <a href="https://publications.waset.org/abstracts/search?q=code%20source%20certification" title=" code source certification"> code source certification</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-signature%20schemes" title=" multi-signature schemes"> multi-signature schemes</a> </p> <a href="https://publications.waset.org/abstracts/74689/multisignature-schemes-for-reinforcing-trust-in-cloud-software-as-a-service-services" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74689.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">275</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> The Effect of Soil in the Allelopathic Potential of Artemisia herba-alba and Oudneya africana Crude Powder on Growth of Weeds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salhi%20Nesrine">Salhi Nesrine</a>, <a href="https://publications.waset.org/abstracts/search?q=Salama%20M.%20El-Darier"> Salama M. El-Darier</a>, <a href="https://publications.waset.org/abstracts/search?q=Halilat%20M.%20El-Taher"> Halilat M. El-Taher</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present study aimed to investigate the effect of two type of soil (clay and sandy soils) in the potential allelopathic effects of Artemisia herba-alba, Oudneya africana crude powder on some growth parameters and phytomass of two weeds (Bromus tectorum and Melilotus indica) under laboratory conditions (pot experiment). The experimental findings have reported that the donor species crude powder concentrations were suppressing to shoot length (SL), root length (RL), fresh and dry weight of shoot and root (SFw, RFw, SDw and RDw, respectively and the leaf number (LN)) in both soil types and caused a gradual reduction particularly when they are high. However, the reduction degree was varied and species, concentration dependent. The suppressive effect of all the eight donors on the two weedy species was in the following order Bromus tectorum> Melilotus indica. Generally, the growth parameters of two recipient species were significantly decreased with the increase of each of the donor species crude powder concentration levels. Concerning the type of sol the t-test indicated that the difference was insignificant between clay and sandy soils. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=allelopathy" title="allelopathy">allelopathy</a>, <a href="https://publications.waset.org/abstracts/search?q=soil" title=" soil"> soil</a>, <a href="https://publications.waset.org/abstracts/search?q=Artemisia%20herba-alba" title=" Artemisia herba-alba"> Artemisia herba-alba</a>, <a href="https://publications.waset.org/abstracts/search?q=Oudneya%20africana" title=" Oudneya africana"> Oudneya africana</a>, <a href="https://publications.waset.org/abstracts/search?q=growth" title=" growth"> growth</a>, <a href="https://publications.waset.org/abstracts/search?q=weeds" title=" weeds "> weeds </a> </p> <a href="https://publications.waset.org/abstracts/1336/the-effect-of-soil-in-the-allelopathic-potential-of-artemisia-herba-alba-and-oudneya-africana-crude-powder-on-growth-of-weeds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1336.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">361</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> Effect of Heat Treatment on Nutrients, Bioactive Contents and Biological Activities of Red Beet (Beta Vulgaris L.)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amessis-Ouchemoukh%20Nadia">Amessis-Ouchemoukh Nadia</a>, <a href="https://publications.waset.org/abstracts/search?q=Salhi%20Rim"> Salhi Rim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ouchemoukh%20Salim"> Ouchemoukh Salim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayad%20Rabha"> Ayad Rabha</a>, <a href="https://publications.waset.org/abstracts/search?q=Sadou%20Dyhia"> Sadou Dyhia</a>, <a href="https://publications.waset.org/abstracts/search?q=Guenaoui%20Nawel"> Guenaoui Nawel</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamouche%20Sara"> Hamouche Sara</a>, <a href="https://publications.waset.org/abstracts/search?q=Madani%20Khodir"> Madani Khodir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The cooking method is a key factor influencing the quality of vegetables. In this study, the effect of the most common cooking methods on the nutritional composition, phenolic content, pigment content and antioxidant activities (evaluated by DPPH, ABTS, CUPRAC, FRAP, reducing power and phosphomolybdene method) of fresh, steamed, and boiled red beet was investigated. The fresh samples showed the highest nutritional and bioactive composition compared to the cooked ones. The boiling method didn’t lead to a significant reduction (p< 0.05) in the content of phenolics, flavonoids, flavanols and DPPH, ABTS, FRAP, CUPRAC, phosphomolybdeneum and reducing power capacities. This effect was less pronounced when steam cooking was used, and the losses of bioactive compounds were lower. As a result, steam cooking resulted in greater retention of bioactive compounds and antioxidant activity compared to boiling. Overall, this study suggests that steam cooking is a better method in terms of retention of pigments and bioactive compounds and antioxidant activity of beetroot. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beta%20vulgaris" title="beta vulgaris">beta vulgaris</a>, <a href="https://publications.waset.org/abstracts/search?q=cooking%20methods" title=" cooking methods"> cooking methods</a>, <a href="https://publications.waset.org/abstracts/search?q=bioactive%20compounds" title=" bioactive compounds"> bioactive compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activities" title=" antioxidant activities"> antioxidant activities</a> </p> <a href="https://publications.waset.org/abstracts/185014/effect-of-heat-treatment-on-nutrients-bioactive-contents-and-biological-activities-of-red-beet-beta-vulgaris-l" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185014.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">61</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">26</span> Impact of a Biopesticide Formulated an Entomopathogenic Fungus Metarhizium Anisopliae et Abstracts of Two Different Plants Sage (Salvia officinalis) and American Paper (Schinus molle) on Aphis Fabae (Homoptera - Aphididae)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Abidallah">Hicham Abidallah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work we realized a formulation of an entomopathogenic fungus Metarhizium anisopliae with a dose of 1,7 x 105 spores/ml, and aqueous abstracts of two different plants sage (Salvia officinalis) and American paper (Schinus molle) with they’re full dose and half dose, on a black bean aphid populations (Aphis fabae) on a bean crop planted in pots at semi-controlled conditions. Five formulations were achieved (Met, Fd, F1/2d, Sd et S1/2d) and tested on six blocks each one contained six pots. This study revealed that four (04) formulations exercised an influence over black bean aphid (Met, Fd, F1/2d, Sd), of which Metarhizium marked the most elevated and aggressive toxicity with an efficiency of 99,24%, however, sage formulation with the half dose (S1/2d ) marked a weak toxicity with an efficiency of 18%. Test of Metarhizium anisopliae on bees didn’t show toxicity, and no mortality has been marked, and no trace of green Muscardine observed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Metarhizium%20anisopliae" title="Metarhizium anisopliae">Metarhizium anisopliae</a>, <a href="https://publications.waset.org/abstracts/search?q=salvia%20officinalis" title=" salvia officinalis"> salvia officinalis</a>, <a href="https://publications.waset.org/abstracts/search?q=Schinus%20molle" title=" Schinus molle"> Schinus molle</a>, <a href="https://publications.waset.org/abstracts/search?q=Aphis%20fabae" title=" Aphis fabae"> Aphis fabae</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency%20degree" title=" efficiency degree"> efficiency degree</a> </p> <a href="https://publications.waset.org/abstracts/15071/impact-of-a-biopesticide-formulated-an-entomopathogenic-fungus-metarhizium-anisopliae-et-abstracts-of-two-different-plants-sage-salvia-officinalis-and-american-paper-schinus-molle-on-aphis-fabae-homoptera-aphididae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15071.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">372</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> The Dynamics of Algeria’s Natural Gas Exports to Europe: Evidence from ARDL Bounds Testing Approach with Breakpoints</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Benamirouche">Hicham Benamirouche</a>, <a href="https://publications.waset.org/abstracts/search?q=Oum%20Elkheir%20Moussi"> Oum Elkheir Moussi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of the study is to examine the dynamics of Algeria’s natural gas exports through the Autoregressive Distributed Lag (ARDL) bounds testing approach with break points. The analysis was carried out for the period from 1967 to 2015. Based on imperfect substitution specification, the ARDL approach reveals a long-run equilibrium relationship between Algeria’s Natural gas exports and their determinant factors (Algeria’s gas reserves, Domestic gas consumption, Europe’s GDP per capita, relative prices, the European gas production and the market share of competitors). All the long-run elasticities estimated are statistically significant with a large impact of domestic factors, which constitute the supply constraints. In short term, the elasticities are statistically significant, and almost comparable to those of the long term. Furthermore, the speed of adjustment towards long-run equilibrium is less than one year because of the little flexibility of the long term export contracts. Two break points have been estimated when we employ the domestic gas consumption as a break variable; 1984 and 2010, which reflect the arbitration policy between the domestic gas market and gas exports. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=natural%20gas%20exports" title="natural gas exports">natural gas exports</a>, <a href="https://publications.waset.org/abstracts/search?q=elasticity" title=" elasticity"> elasticity</a>, <a href="https://publications.waset.org/abstracts/search?q=ARDL%20bounds%20testing" title=" ARDL bounds testing"> ARDL bounds testing</a>, <a href="https://publications.waset.org/abstracts/search?q=break%20points" title=" break points"> break points</a>, <a href="https://publications.waset.org/abstracts/search?q=Algeria" title=" Algeria"> Algeria</a> </p> <a href="https://publications.waset.org/abstracts/82749/the-dynamics-of-algerias-natural-gas-exports-to-europe-evidence-from-ardl-bounds-testing-approach-with-breakpoints" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82749.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">199</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Investigation of the Effects of Gamma Radiation on the Electrically Active Defects in InAs/InGaAs Quantum Dots Laser Structures Grown by Molecular Beam Epitaxy on GaAs Substrates Using Deep Level Transient Spectroscopy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Al%20Huwayz">M. Al Huwayz</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Salhi"> A. Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Alhassan"> S. Alhassan</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Alotaibi"> S. Alotaibi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Almalki"> A. Almalki</a>, <a href="https://publications.waset.org/abstracts/search?q=M.Almunyif"> M.Almunyif</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Alhassni"> A. Alhassni</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Henini"> M. Henini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, there has been much research carried out to investigate quantum dots (QDs) lasers with the aim to increase the gain of quantum well lasers. However, one of the difficulties with these structures is that electrically active defects can lead to serious issues in the performance of these devices. It is therefore essential to fully understand the types of defects introduced during the growth and/or the fabrication process. In this study, the effects of Gamma radiation on the electrically active defects in p-i-n InAs/InGaAsQDs laser structures grown by Molecular Beam Epitaxy (MBE) technique on GaAs substrates were investigated. Deep Level Transient Spectroscopy (DLTS), current-voltage (I-V), and capacitance-voltage (C-V) measurements were performed to explore these effects on the electrical properties of these QDs lasers. I-V measurements showed that as-grown sample had better electrical properties than the irradiated sample. However, DLTS and Laplace DLTS measurements at different reverse biases revealed that the defects in the-region of the p-i-n structures were decreased in the irradiated sample. In both samples, a trap with an activation energy of ~ 0.21 eV was assigned to the well-known defect M1 in GaAs layers <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=quantum%20dots%20laser%20structures" title="quantum dots laser structures">quantum dots laser structures</a>, <a href="https://publications.waset.org/abstracts/search?q=gamma%20radiation" title=" gamma radiation"> gamma radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=DLTS" title=" DLTS"> DLTS</a>, <a href="https://publications.waset.org/abstracts/search?q=defects" title=" defects"> defects</a>, <a href="https://publications.waset.org/abstracts/search?q=nAs%2FIngaAs" title=" nAs/IngaAs"> nAs/IngaAs</a> </p> <a href="https://publications.waset.org/abstracts/141942/investigation-of-the-effects-of-gamma-radiation-on-the-electrically-active-defects-in-inasingaas-quantum-dots-laser-structures-grown-by-molecular-beam-epitaxy-on-gaas-substrates-using-deep-level-transient-spectroscopy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141942.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">187</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">23</span> Electronic Data Interchange (EDI) in the Supply Chain: Impact on Customer Satisfaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Amine">Hicham Amine</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelouahab%20Mesnaoui"> Abdelouahab Mesnaoui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Electronic data interchange EDI is the computer-to-computer exchange of structured business information. This information typically takes the form of standardized electronic business documents, such as invoices, purchase orders, bills of lading, and so on. The purpose of this study is to identify the impact EDI might have on supply chain and typically on customer satisfaction keeping in mind the constraints the organization might face. This study included 139 subject matter experts (SMEs) who participated by responding to a survey that was distributed. 85% responded that they are extremely for the implementation while 10% were neutral and 5% were against the implementation. From the quality assurance department, we have got 75% from the clients agreed to move on with the change whereas 10% stayed neutral and finally 15% were against the change. From the legal department where 80% of the answers were for the implementation and 10% of the participants stayed neutral whereas the last 10% were against it. The survey consisted of 40% male and 60% female (sex-ratio (F/M=1,5), who had chosen to participate. Our survey also contained 3 categories in terms of technical background where 80% are from technical background and 15% were from nontechnical background and 5% had some average technical background. This study examines the impact of EDI on customer satisfaction which is the primary hypothesis and justifies the importance of the implementation which enhances the customer satisfaction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electronic%20data%20interchange" title="electronic data interchange">electronic data interchange</a>, <a href="https://publications.waset.org/abstracts/search?q=supply%20chain" title=" supply chain"> supply chain</a>, <a href="https://publications.waset.org/abstracts/search?q=subject%20matter%20experts" title=" subject matter experts"> subject matter experts</a>, <a href="https://publications.waset.org/abstracts/search?q=customer%20satisfaction" title=" customer satisfaction"> customer satisfaction</a> </p> <a href="https://publications.waset.org/abstracts/15468/electronic-data-interchange-edi-in-the-supply-chain-impact-on-customer-satisfaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15468.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">340</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Comparison of the Effect of Two Rootstocks Citrus Macrophylla and Citrus Volkameriana on Water Productivity of Citrus “Orogrande” Under Three Irrigation Doses</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Elomari">Hicham Elomari</a>, <a href="https://publications.waset.org/abstracts/search?q=Absa%20Fall"> Absa Fall</a>, <a href="https://publications.waset.org/abstracts/search?q=Taoufiq%20Elkrochni"> Taoufiq Elkrochni</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This present work mainly concerns the improvement of citrus water productivity in the Souss Massa region. The objective is to evaluate the effect of deficit irrigation applied during the fruit growth stage on fruit size, quality and yield of the Orogrande variety grafted on Citrus macrophylla and Citrus volkameriana. Three irrigation regimes were adopted, a control D0 of 3.6 l/h and two doses D1 (58% D0 =2.1 l/h) and D2 (236% D0 =8.5 l/h). The experimental design was a randomized complete block while keeping the same spacing between drippers, the same duration of irrigation and the beginning of trials (fruit growth stage). Results showed that at the end of the cycle from October 1, 2020, to September 30, 2021, a total water supply of 732 mm and 785 mm using the D1 dose was provided to trees of Orogrande variety, respectively grafted on Citrus macrophylla and Citrus volkameriana rootstocks. Citrus macrophylla presented largest fruit size of 38 mm compared to Citrus volkameriana (33mm) with a significant difference. Total soluble sugar (8°Brix) and juice content level (40%) were higher with the application of the D1 dose on both rootstocks. Yield of 36 Tons was not affected by the deficit irrigation. Reduction of water supply by 18% increases agronomic productivity (6 MAD/m³) and economic productivity (3 MAD/m³). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=citrus" title="citrus">citrus</a>, <a href="https://publications.waset.org/abstracts/search?q=irrigation" title=" irrigation"> irrigation</a>, <a href="https://publications.waset.org/abstracts/search?q=fruit%20size" title=" fruit size"> fruit size</a>, <a href="https://publications.waset.org/abstracts/search?q=fruit%20quality" title=" fruit quality"> fruit quality</a>, <a href="https://publications.waset.org/abstracts/search?q=yield" title=" yield"> yield</a> </p> <a href="https://publications.waset.org/abstracts/178789/comparison-of-the-effect-of-two-rootstocks-citrus-macrophylla-and-citrus-volkameriana-on-water-productivity-of-citrus-orogrande-under-three-irrigation-doses" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178789.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">65</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Influence of Cation Substitution on Magnetic Transitions and Ordering in La2NixCo1-xMnO6 Compounds (x = 0.2 - 0.8)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amine.Harbia">Amine.Harbia</a>, <a href="https://publications.waset.org/abstracts/search?q=Hicham.%20Moutaabbidb"> Hicham. Moutaabbidb</a>, <a href="https://publications.waset.org/abstracts/search?q=Yann.%20Le%20Godecb"> Yann. Le Godecb</a>, <a href="https://publications.waset.org/abstracts/search?q=Said.%20Benmokhtara"> Said. Benmokhtara</a>, <a href="https://publications.waset.org/abstracts/search?q=Mouhammed.%20Moutaabbida"> Mouhammed. Moutaabbida</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study explores the structural and magnetic characteristics of newly synthesized double perovskite oxides, La₂NiₓCo1-xMnO₆, with x ranging from 0.2 to 0.8. Utilizing X-ray powder diffraction and SQUID magnetometry, we analyzed the compounds that consistently exhibit a monoclinic structure with the P21/n space group at ambient temperature. it findings reveal that as Ni2+ is progressively substituted by Co2+, there is a corresponding decrease in cell parameters, attributable to the smaller ionic radius of Ni2+ (0.69 Å) compared to Co2+ (0.74 Å). The crystal structure features octahedrally coordinated (Co/Ni)2+ and Mn4+ cations with oxygen, forming (Co/Ni)O6 and MnO6 octahedra linked via oxygen atoms along different crystallographic axes. Magnetic characterization conducted over a temperature range of 2 to 300 K in both DC and AC magnetic fields, showed a predominant paramagnetic to ferromagnetic transition between 232 K and 260 K, with the Curie temperature notably increasing with higher x values. Samples with x=0.2, 0.25, and 0.5 exhibited a secondary PM-FM transition between 200 K and 208 K. Cation ordering was quantitatively assessed, indicating a higher ordering in Ni2+-rich samples (x=0.75 and 0.8) at over 96%, whereas the sample with x=0.25 showed minimal ordering. Furthermore, the out-of-phase component of the AC susceptibility displayed frequency-dependent transitions between 65 K and 110 K, suggesting the presence of superparamagnetic domains across all samples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=double%20perovskite%20oxides" title="double perovskite oxides">double perovskite oxides</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20transitions" title=" magnetic transitions"> magnetic transitions</a>, <a href="https://publications.waset.org/abstracts/search?q=cation%20ordering" title=" cation ordering"> cation ordering</a>, <a href="https://publications.waset.org/abstracts/search?q=squid%20magnetometry" title=" squid magnetometry"> squid magnetometry</a> </p> <a href="https://publications.waset.org/abstracts/186377/influence-of-cation-substitution-on-magnetic-transitions-and-ordering-in-la2nixco1-xmno6-compounds-x-02-08" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186377.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">57</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Estimation of the Road Traffic Emissions and Dispersion in the Developing Countries Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Gourgue">Hicham Gourgue</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Aharoune"> Ahmed Aharoune</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Ihlal"> Ahmed Ihlal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We present in this work our model of road traffic emissions (line sources) and dispersion of these emissions, named DISPOLSPEM (Dispersion of Poly Sources and Pollutants Emission Model). In its emission part, this model was designed to keep the consistent bottom-up and top-down approaches. It also allows to generate emission inventories from reduced input parameters being adapted to existing conditions in Morocco and in the other developing countries. While several simplifications are made, all the performance of the model results are kept. A further important advantage of the model is that it allows the uncertainty calculation and emission rate uncertainty according to each of the input parameters. In the dispersion part of the model, an improved line source model has been developed, implemented and tested against a reference solution. It provides improvement in accuracy over previous formulas of line source Gaussian plume model, without being too demanding in terms of computational resources. In the case study presented here, the biggest errors were associated with the ends of line source sections; these errors will be canceled by adjacent sections of line sources during the simulation of a road network. In cases where the wind is parallel to the source line, the use of the combination discretized source and analytical line source formulas minimizes remarkably the error. Because this combination is applied only for a small number of wind directions, it should not excessively increase the calculation time. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=air%20pollution" title="air pollution">air pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=dispersion" title=" dispersion"> dispersion</a>, <a href="https://publications.waset.org/abstracts/search?q=emissions" title=" emissions"> emissions</a>, <a href="https://publications.waset.org/abstracts/search?q=line%20sources" title=" line sources"> line sources</a>, <a href="https://publications.waset.org/abstracts/search?q=road%20traffic" title=" road traffic"> road traffic</a>, <a href="https://publications.waset.org/abstracts/search?q=urban%20transport" title=" urban transport"> urban transport</a> </p> <a href="https://publications.waset.org/abstracts/43382/estimation-of-the-road-traffic-emissions-and-dispersion-in-the-developing-countries-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43382.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">442</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Numerical Analysis of the Aging Effects of RC Shear Walls Repaired by CFRP Sheets: Application of CEB-FIP MC 90 Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yeghnem%20Redha">Yeghnem Redha</a>, <a href="https://publications.waset.org/abstracts/search?q=Guerroudj%20Hicham%20Zakaria"> Guerroudj Hicham Zakaria</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanifi%20Hachemi%20Amar%20Lemiya"> Hanifi Hachemi Amar Lemiya</a>, <a href="https://publications.waset.org/abstracts/search?q=Meftah%20Sid%20Ahmed"> Meftah Sid Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Tounsi%20Abdelouahed"> Tounsi Abdelouahed</a>, <a href="https://publications.waset.org/abstracts/search?q=Adda%20Bedia%20El%20Abbas"> Adda Bedia El Abbas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Creep deformation of concrete is often responsible for excessive deflection at service loads which can compromise the performance of elements within a structure. Although laboratory test may be undertaken to determine the deformation properties of concrete, these are time-consuming, often expensive and generally not a practical option. Therefore, relatively simple empirically design code models are relied to predict the creep strain. This paper reviews the accuracy of creep and shrinkage predictions of reinforced concrete (RC) shear walls structures strengthened with carbon fibre reinforced polymer (CFRP) sheets, which is characterized by a widthwise varying fibre volume fraction. This review is yielded by CEB-FIB MC90 model. The time-dependent behavior was investigated to analyze their static behavior. In the numerical formulation, the adherents and the adhesives are all modelled as shear wall elements, using the mixed finite element method. Several tests were used to dem¬onstrate the accuracy and effectiveness of the proposed method. Numerical results from the present analysis are presented to illustrate the significance of the time-dependency of the lateral displacements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RC%20shear%20walls%20strengthened" title="RC shear walls strengthened">RC shear walls strengthened</a>, <a href="https://publications.waset.org/abstracts/search?q=CFRP%20sheets" title=" CFRP sheets"> CFRP sheets</a>, <a href="https://publications.waset.org/abstracts/search?q=creep%20and%20shrinkage" title=" creep and shrinkage"> creep and shrinkage</a>, <a href="https://publications.waset.org/abstracts/search?q=CEB-FIP%20MC90%20model" title=" CEB-FIP MC90 model"> CEB-FIP MC90 model</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=static%20behavior" title=" static behavior"> static behavior</a> </p> <a href="https://publications.waset.org/abstracts/51255/numerical-analysis-of-the-aging-effects-of-rc-shear-walls-repaired-by-cfrp-sheets-application-of-ceb-fip-mc-90-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51255.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">309</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Surface Modified Quantum Dots for Nanophotonics, Stereolithography and Hybrid Systems for Biomedical Studies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Redouane%20Krini">Redouane Krini</a>, <a href="https://publications.waset.org/abstracts/search?q=Lutz%20Nuhn"> Lutz Nuhn</a>, <a href="https://publications.waset.org/abstracts/search?q=Hicham%20El%20Mard%20Cheol%20Woo%20Ha"> Hicham El Mard Cheol Woo Ha</a>, <a href="https://publications.waset.org/abstracts/search?q=Yoondeok%20Han"> Yoondeok Han</a>, <a href="https://publications.waset.org/abstracts/search?q=Kwang-Sup%20Lee"> Kwang-Sup Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong-Yol%20Yang"> Dong-Yol Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinsoo%20Joo"> Jinsoo Joo</a>, <a href="https://publications.waset.org/abstracts/search?q=Rudolf%20Zentel"> Rudolf Zentel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To use Quantum Dots (QDs) in the two photon initiated polymerization technique (TPIP) for 3D patternings, QDs were modified on the surface with photosensitive end groups which are able to undergo a photopolymerization. We were able to fabricate fluorescent 3D lattice structures using photopatternable QDs by TPIP for photonic devices such as photonic crystals and metamaterials. The QDs in different diameter have different emission colors and through mixing of RGB QDs white light fluorescent from the polymeric structures has been created. Metamaterials are capable for unique interaction with the electrical and magnetic components of the electromagnetic radiation and for manipulating light it is crucial to have a negative refractive index. In combination with QDs via TPIP technique polymeric structures can be designed with properties which cannot be found in nature. This makes these artificial materials gaining a huge importance for real-life applications in photonic and optoelectronic. Understanding of interactions between nanoparticles and biological systems is of a huge interest in the biomedical research field. We developed a synthetic strategy of polymer functionalized nanoparticles for biomedical studies to obtain hybrid systems of QDs and copolymers with a strong binding network in an inner shell and which can be modified in the end through their poly(ethylene glycol) functionalized outer shell. These hybrid systems can be used as models for investigation of cell penetration and drug delivery by using measurements combination between CryoTEM and fluorescence studies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biomedical%20study%20models" title="biomedical study models">biomedical study models</a>, <a href="https://publications.waset.org/abstracts/search?q=lithography" title=" lithography"> lithography</a>, <a href="https://publications.waset.org/abstracts/search?q=photo%20induced%20polymerization" title=" photo induced polymerization"> photo induced polymerization</a>, <a href="https://publications.waset.org/abstracts/search?q=quantum%20dots" title=" quantum dots"> quantum dots</a> </p> <a href="https://publications.waset.org/abstracts/28367/surface-modified-quantum-dots-for-nanophotonics-stereolithography-and-hybrid-systems-for-biomedical-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28367.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">526</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> The Role of Leukocyte-Derived IL-10 on Postoperative ileus and Intestinal Macrophage Differentiation in Mice</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kathy%20Stein">Kathy Stein</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariola%20Lysson"> Mariola Lysson</a>, <a href="https://publications.waset.org/abstracts/search?q=Anja%20Schmidt"> Anja Schmidt</a>, <a href="https://publications.waset.org/abstracts/search?q=Beatrix%20Schumak"> Beatrix Schumak</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabine%20Specht"> Sabine Specht</a>, <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Bouabe"> Hicham Bouabe</a>, <a href="https://publications.waset.org/abstracts/search?q=J%C3%BCrgen%20Heesemann"> Jürgen Heesemann</a>, <a href="https://publications.waset.org/abstracts/search?q=Axel%20Roers"> Axel Roers</a>, <a href="https://publications.waset.org/abstracts/search?q=Joerg%20C.%20Kalff"> Joerg C. Kalff</a>, <a href="https://publications.waset.org/abstracts/search?q=Sven%20Wehner"> Sven Wehner</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: Postoperative ileus (POI) is a common complication of abdominal surgery. Monocyte infiltration is a hallmark of POI. The polarization of macrophages/monocytes in this process is not well understood. We aimed to investigate if and how M2 macrophage/monocyte differentiation is involved in POI pathogenesis. Design: POI was induced by intestinal manipulation (IM). C57Bl/6, CCR2-/-, IL-10 reporter (ITIB), IL-10-/- and LysMcre/IL-10fl/fl mice underwent IM. At various points in time leukocyte influx, gene and protein expression of cytokines, chemokines and M2 differentiation markers and intestinal motility were analyzed. Results: IM induced the postoperative expression of the M2 markers Arginase-1 and YM-1, predominantly in F4/80+Ly6C+ monocytes. Gene expression analyses indicated an IL-10-dependent, IL-4-independent M2 polarization of these monocytes. IL-10 dependency of M2 differentiation was confirmed in IL-10 deficient mice. Leukocytes, in the order of infiltrating monocytes, neutrophils, and resident macrophages were the main IL-10 producers during POI. IL-10 producing monocytes as well as M2 marker expression were almost absent in CCR2-deficient mice. However, postoperative IL-10 expression was not altered in CCR2-/- mice. The loss of M2 polarized monocytes neither protected CCR2-/- mice from nor affected resolution of POI. In contrast, IL-10 deficiency reduced postoperative neutrophil numbers and ameliorated POI. IL-10Ra expression was strongly induced in neutrophils but not in monocytes. Conclusion: We conclude that IL-10 counteracts POI resolution by activating IL-10Ra-expressing neutrophils in the late phase of disease while IL-10-dependent M2 differentiation is not pivotal to POI manifestation and resolution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=interleukin-10" title="interleukin-10">interleukin-10</a>, <a href="https://publications.waset.org/abstracts/search?q=macrophages" title=" macrophages"> macrophages</a>, <a href="https://publications.waset.org/abstracts/search?q=neutrophils" title=" neutrophils"> neutrophils</a>, <a href="https://publications.waset.org/abstracts/search?q=postoperative%20ileus" title=" postoperative ileus"> postoperative ileus</a> </p> <a href="https://publications.waset.org/abstracts/60378/the-role-of-leukocyte-derived-il-10-on-postoperative-ileus-and-intestinal-macrophage-differentiation-in-mice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60378.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">355</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Geophysical Approach in the Geological Characterization of a Dam Site: Case of the Chebabta-Dam, Meskiana, Oum El-Bouaghi</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benhammadi%20Hocine">Benhammadi Hocine</a>, <a href="https://publications.waset.org/abstracts/search?q=Djamel%20Boubaya"> Djamel Boubaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Chaffai%20Hicham"> Chaffai Hicham</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Meskiana Area is characterized by a semi-arid climate where the water supply for irrigation and industry is not sufficient as the priority goes for domestic use. To meet the increasing population growth and development, the authorities have considered building a new water retaining structure on some major temporary water streams. For this purpose Chebabta site on Oued Meskiana was chosen as the future dam site. It is large enough to store the desired volume of water. This study comes to investigate the conditions of the site and the adequacy of the ground as a foundation for the projected dam. The conditions of the site include the geological structure and mainly the presence of discontinuities in the formation on which the dam will be built, the nature of the lithologies under the foundation and the future lake, and the presence of any hazard. This site characterization is usually carried out using different methods in order to highlight any underground buried problematic structure. In this context, the different geophysical technics remain the most used ones. Three geophysical methods were used in the case of the Chebabta dam site, namely, electric survey, seismic refraction, and tomography. The choice of the technics and the location of the scan line was made on the basis of the available geological data. In this sense, profiles have been established on both banks of Oued Meskiana. The obtained results have allowed a better characterization of the geological structure, defining the limit between the surface cover and the bedrock, which is, in other words, the limit between the weathered zone and the bedrock. Their respective thicknesses were also determined by seismic refraction and electrical resistivity sounding. However, the tomography imaging technic has succeeded in positioning a fault structure passing through the right bank of the wadi. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dam%20site" title="dam site">dam site</a>, <a href="https://publications.waset.org/abstracts/search?q=fault" title=" fault"> fault</a>, <a href="https://publications.waset.org/abstracts/search?q=geophysic" title=" geophysic"> geophysic</a>, <a href="https://publications.waset.org/abstracts/search?q=investigation" title=" investigation"> investigation</a>, <a href="https://publications.waset.org/abstracts/search?q=Meskiana" title=" Meskiana"> Meskiana</a> </p> <a href="https://publications.waset.org/abstracts/160184/geophysical-approach-in-the-geological-characterization-of-a-dam-site-case-of-the-chebabta-dam-meskiana-oum-el-bouaghi" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/160184.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">88</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Photocatalytic Hydrogen Production, Effect of Metal Particle Size and Their Electronic/Optical Properties on the Reaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hicham%20Idriss">Hicham Idriss</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hydrogen production from water is one of the most promising methods to secure renewable sources or vectors of energy for societies in general and for chemical industries in particular. At present over 90% of the total amount of hydrogen produced in the world is made from non-renewable fossil fuels (via methane reforming). There are many methods for producing hydrogen from water and these include reducible oxide materials (solar thermal production), combined PV/electrolysis, artificial photosynthesis and photocatalysis. The most promising of these processes is the one relying on photocatalysis; yet serious challenges are hindering its success so far. In order to make this process viable considerable improvement of the photon conversion is needed. Among the key studies that our group has been conducting in the last few years are those focusing on synergism between the semiconductor phases, photonic band gap materials, pn junctions, plasmonic resonance responses, charge transfer to metal cations, in addition to metal dispersion and band gap engineering. In this work results related to phase transformation of the anatase to rutile in the case of TiO2 (synergism), of Au and Ag dispersion (electron trapping and hydrogen-hydrogen recombination centers) as well as their plasmon resonance response (visible light conversion) are presented and discussed. It is found for example that synergism between the two common phases of TiO2 (anatase and rutile) is sensitive to the initial particle size. It is also found, in agreement with previous results, that the rate is very sensitive to the amount of metals (with similar particle size) on the surface unlike the case of thermal heterogeneous catalysis. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=photo-catalysis" title="photo-catalysis">photo-catalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20production" title=" hydrogen production"> hydrogen production</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20splitting" title=" water splitting"> water splitting</a>, <a href="https://publications.waset.org/abstracts/search?q=plasmonic" title=" plasmonic"> plasmonic</a> </p> <a href="https://publications.waset.org/abstracts/58967/photocatalytic-hydrogen-production-effect-of-metal-particle-size-and-their-electronicoptical-properties-on-the-reaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58967.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">253</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Hicham%20Salhi&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Hicham%20Salhi&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a 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