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<!DOCTYPE html> <html lang="en" dir="ltr"> <head>  <script async src="https://www.googletagmanager.com/gtag/js?id=G-P63WKM1TM1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-P63WKM1TM1'); </script>  <script type="text/javascript" > (function(m,e,t,r,i,k,a){m[i]=m[i]||function(){(m[i].a=m[i].a||[]).push(arguments)}; m[i].l=1*new Date(); for (var j = 0; j < document.scripts.length; j++) {if (document.scripts[j].src === r) { return; }} k=e.createElement(t),a=e.getElementsByTagName(t)[0],k.async=1,k.src=r,a.parentNode.insertBefore(k,a)}) (window, document, "script", "https://mc.yandex.ru/metrika/tag.js", "ym"); ym(55165297, "init", { clickmap:false, trackLinks:true, accurateTrackBounce:true, webvisor:false }); </script> <noscript><div><img src="https://mc.yandex.ru/watch/55165297" style="position:absolute; left:-9999px;" alt="" /></div></noscript>    <title>Search results for: Meftah O. Bashir</title> <meta name="description" content="Search results for: Meftah O. Bashir"> <meta name="keywords" content="Meftah O. Bashir"> <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="Meftah O. 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Bashir"> <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> 103</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Meftah O. Bashir</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">103</span> Application of Rapid Prototyping to Create Additive Prototype Using Computer System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Meftah%20O.%20Bashir">Meftah O. Bashir</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20A.%20Karkory"> Fatma A. Karkory</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Rapid prototyping is a new group of manufacturing processes, which allows fabrication of physical of any complexity using a layer by layer deposition technique directly from a computer system. The rapid prototyping process greatly reduces the time and cost necessary to bring a new product to market. The prototypes made by these systems are used in a range of industrial application including design evaluation, verification, testing, and as patterns for casting processes. These processes employ a variety of materials and mechanisms to build up the layers to build the part. The present work was to build a FDM prototyping machine that could control the X-Y motion and material deposition, to generate two-dimensional and three-dimensional complex shapes. This study focused on the deposition of wax material. This work was to find out the properties of the wax materials used in this work in order to enable better control of the FDM process. This study will look at the integration of a computer controlled electro-mechanical system with the traditional FDM additive prototyping process. The characteristics of the wax were also analysed in order to optimize the model production process. These included wax phase change temperature, wax viscosity and wax droplet shape during processing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rapid%20prototyping" title="rapid prototyping">rapid prototyping</a>, <a href="https://publications.waset.org/abstracts/search?q=wax" title=" wax"> wax</a>, <a href="https://publications.waset.org/abstracts/search?q=manufacturing%20processes" title=" manufacturing processes"> manufacturing processes</a>, <a href="https://publications.waset.org/abstracts/search?q=shape" title=" shape "> shape </a> </p> <a href="https://publications.waset.org/abstracts/25158/application-of-rapid-prototyping-to-create-additive-prototype-using-computer-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25158.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">464</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">102</span> Physical and Mechanical Characterization of Limestone in the Quarry of Meftah (Algeria)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Benyounes">Khaled Benyounes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Determination of the rock mechanical properties such as unconfined compressive strength UCS, Young’s modulus E, and tensile strength by the Brazilian test Rtb is considered to be the most important component in drilling and mining engineering project. Research related to establishing correlation between strength and physical parameters of rocks has always been of interest to mining and reservoir engineering. For this, many rock blocks of limestone were collected from the quarry located in Meftah (Algeria), the cores were crafted in the laboratory using a core drill. This work examines the relationships between mechanical properties and some physical properties of limestone. Many empirical equations are established between UCS and physical properties of limestone (such as dry bulk density, velocity of P-waves, dynamic Young’s modulus, alteration index, and total porosity). Other correlations, UCS - tensile strength, dynamic Young’s modulus - static Young’s modulus have been find. Based on the Mohr-Coulomb failure criterion, we were able to establish mathematical relationships that will allow estimating the cohesion and internal friction angle from UCS and indirect tensile strength. Results from this study can be useful for mining industry for resolve range of geomechanical problems such as slope stability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=limestone" title="limestone">limestone</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20strength" title=" mechanical strength"> mechanical strength</a>, <a href="https://publications.waset.org/abstracts/search?q=Young%E2%80%99s%20modulus" title=" Young’s modulus"> Young’s modulus</a>, <a href="https://publications.waset.org/abstracts/search?q=porosity" title=" porosity"> porosity</a> </p> <a href="https://publications.waset.org/abstracts/8819/physical-and-mechanical-characterization-of-limestone-in-the-quarry-of-meftah-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8819.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">637</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">101</span> Controlled Size Synthesis of ZnO and PEG-ZnO NPs and Their Biological Evaluation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahnoor%20Khan">Mahnoor Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Bashir%20Ahmad"> Bashir Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Khizar%20Hayat"> Khizar Hayat</a>, <a href="https://publications.waset.org/abstracts/search?q=Saad%20Ahmad%20Khan"> Saad Ahmad Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Laiba%20Ahmad"> Laiba Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Shumaila%20Bashir"> Shumaila Bashir</a>, <a href="https://publications.waset.org/abstracts/search?q=Abid%20Ali%20Khan"> Abid Ali Khan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to synthesize the smallest possible size of ZnO NPs using a modified wet chemical synthesis method and to prepare core shell using polyethylene glycol (PEG) as shell material. Advanced and sophisticated techniques were used to confirm the synthesis, size, and shape of these NPs. Rounded, clustered NPs of size 5.343 nm were formed. Both the plain and core shell NPs were tested against MDR bacteria (E. cloacae, E. amnigenus, Shigella, S. odorifacae, Citrobacter, and E. coli). Both of the NPs showed excellent antibacterial properties, whereas E. cloacae showed maximum zone of inhibition of 16 mm, 27 mm, and 32 mm for 500 μg/ml, 1000 μg/ml, and 1500 μg/ml, respectively for plain ZnO NPs and 18 mm, 28 mm and 35 mm for 500 μg/ml, 1000 μg/ml and 1500 μg/ml for core shell NPs. These NPs were also biocompatible on human red blood cells showing little hemolysis of only 4% for 70 μg/ml for plain NPs and 1.5% for 70 μg/ml for core shell NPs. Core shell NPs were highly biocompatible because of the PEG. Their therapeutic effect as photosensitizers in photodynamic therapy (PDT) for cancer treatment was also monitored. The cytotoxicity of ZnO and PEG-ZnO was evaluated using MTT assay. Our results demonstrated that these NPs could generate ROS inside tumor cells after irradiation which in turn initiates an apoptotic pathway leading to cell death hence proving to be an effective candidate for PDT. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ZnO" title="ZnO">ZnO</a>, <a href="https://publications.waset.org/abstracts/search?q=hemolysis" title=" hemolysis"> hemolysis</a>, <a href="https://publications.waset.org/abstracts/search?q=cytotoxiciy%20assay" title=" cytotoxiciy assay"> cytotoxiciy assay</a>, <a href="https://publications.waset.org/abstracts/search?q=photodynamic%20therapy" title=" photodynamic therapy"> photodynamic therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=antibacterial" title=" antibacterial"> antibacterial</a> </p> <a href="https://publications.waset.org/abstracts/153973/controlled-size-synthesis-of-zno-and-peg-zno-nps-and-their-biological-evaluation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153973.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">140</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">100</span> Modelisation of a Full-Scale Closed Cement Grinding</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20Touil">D. Touil</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Ouadah"> L. Ouadah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An industrial model of cement grinding circuit is proposed on the basis of sampling surveys undertaken in the Meftah cement plant in Algiers, Algeria. The ball mill is described by a series of equal fully mixed stages that incorporates the effect of air sweeping. The kinetic parameters of this material in the energy normalized form obtained using the data of batch dry ball milling are taken into account in developing the present scale-up procedure. The dynamic separator is represented by the air classifier selectivity equation corrected by empirical factors. The model is incorporated in computer program that predict full size distributions and mass flow rates for all streams in a circuit under a particular set of operating conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=grinding%20circuit" title="grinding circuit">grinding circuit</a>, <a href="https://publications.waset.org/abstracts/search?q=clinker" title=" clinker"> clinker</a>, <a href="https://publications.waset.org/abstracts/search?q=cement" title=" cement"> cement</a>, <a href="https://publications.waset.org/abstracts/search?q=modeling" title=" modeling"> modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=population%20balance" title=" population balance"> population balance</a>, <a href="https://publications.waset.org/abstracts/search?q=energy" title=" energy "> energy </a> </p> <a href="https://publications.waset.org/abstracts/10771/modelisation-of-a-full-scale-closed-cement-grinding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10771.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">99</span> Monotone Rational Trigonometric Interpolation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Uzma%20Bashir">Uzma Bashir</a>, <a href="https://publications.waset.org/abstracts/search?q=Jamaludin%20Md.%20Ali"> Jamaludin Md. Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study is concerned with the visualization of monotone data using a piece-wise C1 rational trigonometric interpolating scheme. Four positive shape parameters are incorporated in the structure of rational trigonometric spline. Conditions on two of these parameters are derived to attain the monotonicity of monotone data and other two are left-free. Figures are used widely to exhibit that the proposed scheme produces graphically smooth monotone curves. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=trigonometric%20splines" title="trigonometric splines">trigonometric splines</a>, <a href="https://publications.waset.org/abstracts/search?q=monotone%20data" title=" monotone data"> monotone data</a>, <a href="https://publications.waset.org/abstracts/search?q=shape%20preserving" title=" shape preserving"> shape preserving</a>, <a href="https://publications.waset.org/abstracts/search?q=C1%20monotone%20interpolant" title=" C1 monotone interpolant"> C1 monotone interpolant</a> </p> <a href="https://publications.waset.org/abstracts/5079/monotone-rational-trigonometric-interpolation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5079.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">271</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">98</span> Synchronization of Chaotic T-System via Optimal Control as an Adaptive Controller</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hossein%20Kheiri">Hossein Kheiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Bashir%20Naderi"> Bashir Naderi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Reza%20Niknam"> Mohamad Reza Niknam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper we study the optimal synchronization of chaotic T-system with complete uncertain parameter. Optimal control laws and parameter estimation rules are obtained by using Hamilton-Jacobi-Bellman (HJB) technique and Lyapunov stability theorem. The derived control laws are optimal adaptive control and make the states of drive and response systems asymptotically synchronized. Numerical simulation shows the effectiveness and feasibility of the proposed method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lyapunov%20stability" title="Lyapunov stability">Lyapunov stability</a>, <a href="https://publications.waset.org/abstracts/search?q=synchronization" title=" synchronization"> synchronization</a>, <a href="https://publications.waset.org/abstracts/search?q=chaos" title=" chaos"> chaos</a>, <a href="https://publications.waset.org/abstracts/search?q=optimal%20control" title=" optimal control"> optimal control</a>, <a href="https://publications.waset.org/abstracts/search?q=adaptive%20control" title=" adaptive control"> adaptive control</a> </p> <a href="https://publications.waset.org/abstracts/8820/synchronization-of-chaotic-t-system-via-optimal-control-as-an-adaptive-controller" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8820.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">487</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">97</span> Nitrate Removal from Drinking Water Using Modified Natural Nanozeolite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Meftah">T. Meftah</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20M.%20Zerafat"> M. M. Zerafat</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Sabbaghi"> S. Sabbaghi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nitrate compounds are considered as groundwater contaminants, the concentration of which has been growing in these resources during recent years. As a result, it seems necessary to use effective methods to remove nitrate from water and wastewater. Adsorption process is generally considered more economical in water treatment. Natural clinoptilolite zeolite is one of the best absorbents because of its high capacity and low cost.In this research, we are going to modify zeolite nanoparticles as a chemical modification. Zeolite nanoparticles have been modified with a kind of organosilane, like 3-aminopropyltriethoxysilane. The advantage of this modification method, in comparison with physical modification, is the good stability in various environmental conditions. In this research, absorbent properties have been analyzed by PSA, FTIR and CHN elemental analysis. Also, nitrate adsorption by modified nanoparticles was examined by UV-Vis spectroscopy. There would be 〖NH〗_2 groups on the zeolite surface as a result of organosilane modification. In order to adsorption of nitrate, we need to convert 〖NH〗_2 groups to〖NH〗_4^+, that it is possible in acidic condition. As a result, the best nitrate removal is possible in the lowest concentration and pH. We obtained 80.12% nitrate removal in pH=3 and 50 mg⁄l nitrate concentration and 4 g⁄l absorbent optimum concentration. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nitrate%20removal" title="nitrate removal">nitrate removal</a>, <a href="https://publications.waset.org/abstracts/search?q=zeolite" title=" zeolite"> zeolite</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20modification" title=" surface modification"> surface modification</a>, <a href="https://publications.waset.org/abstracts/search?q=organosilane" title=" organosilane"> organosilane</a> </p> <a href="https://publications.waset.org/abstracts/18940/nitrate-removal-from-drinking-water-using-modified-natural-nanozeolite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18940.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">498</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">96</span> Sensitivity Studies for a Pin Homojunction a-Si:H Solar Cell</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Leila%20Ayat">Leila Ayat</a>, <a href="https://publications.waset.org/abstracts/search?q=Afak%20Meftah"> Afak Meftah </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Amorphous-silicon alloys have great promise as low cost solar cell materials. They have excellent photo-conductivity and high optical absorption to sunlight. Now PIN a-Si:H based solar cells are widely used in power generation modules. However, to improve the performance of these cells further, a better fundamental under-standing of the factors limiting cell performance in the homo junction PIN structure is necessary. In this paper we discuss the sensitivity of light J-V characteristics to various device and material parameters in PIN homo junction solar cells. This work is a numerical simulation of the output parameters of a PIN a-Si:H solar cell under AM1.5 spectrum. These parameters are the short circuit current (Jsc), the open circuit voltage (Voc), the fill factor (FF), the conversion efficiency. The simulation was performed with SCAPS-1D software version 3.3 developed at ELIS in Belgium by Marc Burgelman et al. The obtained results are in agreement with experiment. In addition, the effect of the thickness, doping density, capture cross sections of the gap states and the band microscopic mobilities on the output parameters of the cell are also presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=amorphous%20silicon%20p-i-n%20junctions" title="amorphous silicon p-i-n junctions">amorphous silicon p-i-n junctions</a>, <a href="https://publications.waset.org/abstracts/search?q=thin%20film" title=" thin film"> thin film</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cells" title=" solar cells"> solar cells</a>, <a href="https://publications.waset.org/abstracts/search?q=sensitivity" title=" sensitivity"> sensitivity</a> </p> <a href="https://publications.waset.org/abstracts/21840/sensitivity-studies-for-a-pin-homojunction-a-sih-solar-cell" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21840.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">521</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">95</span> Knowledge Sharing in Virtual Community: Societal Culture Considerations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shahnaz%20Bashir">Shahnaz Bashir</a>, <a href="https://publications.waset.org/abstracts/search?q=Abel%20Usoro"> Abel Usoro</a>, <a href="https://publications.waset.org/abstracts/search?q=Imran%20Khan"> Imran Khan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hofstede’s culture model is an important model to study culture between different societies. He collected data from world-wide and performed a comprehensive study. Hofstede’s cultural model is widely accepted and has been used to study cross cultural influences in different areas like cross-cultural psychology, cross cultural management, information technology, and intercultural communication. This study investigates the societal cultural aspects of knowledge sharing in virtual communities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=knowledge%20management" title="knowledge management">knowledge management</a>, <a href="https://publications.waset.org/abstracts/search?q=knowledge%20sharing" title=" knowledge sharing"> knowledge sharing</a>, <a href="https://publications.waset.org/abstracts/search?q=societal%20culture" title=" societal culture"> societal culture</a>, <a href="https://publications.waset.org/abstracts/search?q=virtual%20communities" title=" virtual communities"> virtual communities</a> </p> <a href="https://publications.waset.org/abstracts/5500/knowledge-sharing-in-virtual-community-societal-culture-considerations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5500.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">405</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">94</span> Influence of Physical Properties on Estimation of Mechanical Strength of Limestone </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Benyounes">Khaled Benyounes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Determination of the rock mechanical properties such as unconfined compressive strength UCS, Young’s modulus E, and tensile strength by the Brazilian test Rtb is considered to be the most important component in drilling and mining engineering project. Research related to establishing correlation between strength and physical parameters of rocks has always been of interest to mining and reservoir engineering. For this, many rock blocks of limestone were collected from the quarry located in Meftah(Algeria), the cores were crafted in the laboratory using a core drill. This work examines the relationships between mechanical properties and some physical properties of limestone. Many empirical equations are established between UCS and physical properties of limestone (such as dry bulk density, velocity of P-waves, dynamic Young’s modulus, alteration index, and total porosity). Others correlations UCS-tensile strength, dynamic Young’s modulus-static Young’s modulus have been find. Based on the Mohr-Coulomb failure criterion, we were able to establish mathematical relationships that will allow estimating the cohesion and internal friction angle from UCS and indirect tensile strength. Results from this study can be useful for mining industry for resolve range of geomechanical problems such as slope stability. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=limestone" title="limestone">limestone</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20strength" title=" mechanical strength"> mechanical strength</a>, <a href="https://publications.waset.org/abstracts/search?q=Young%E2%80%99s%20modulus" title=" Young’s modulus"> Young’s modulus</a>, <a href="https://publications.waset.org/abstracts/search?q=porosity" title=" porosity"> porosity</a> </p> <a href="https://publications.waset.org/abstracts/16336/influence-of-physical-properties-on-estimation-of-mechanical-strength-of-limestone" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16336.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">455</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">93</span> E-Service and the Nigerian Banking Sector: A Review of ATM Architecture and Operations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bashir%20Aliyu%20Yauri">Bashir Aliyu Yauri</a>, <a href="https://publications.waset.org/abstracts/search?q=Rufai%20Aliyu%20Yauri"> Rufai Aliyu Yauri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the introduction of cash-less society policy by the Central Bank of Nigeria, the concept of e-banking services has experienced a significant improvement over the years. Today quite a number of people are embracing e-banking activities especially ATM, thereby moving away from the conventional banking system. This paper presents a review of the underlying Architectural Layout of Intra-Bank and Inter-Bank ATM connectivity in Nigeria. The paper further investigates and discusses factors affecting the Intra-Bank and Inter-Bank ATM connectivity in Nigeria. And as well possible solutions to these factors affecting ATM Connectivity and Operations are proposed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=architectural%20layout" title="architectural layout">architectural layout</a>, <a href="https://publications.waset.org/abstracts/search?q=automated%20teller%20machine" title=" automated teller machine"> automated teller machine</a>, <a href="https://publications.waset.org/abstracts/search?q=e-services" title=" e-services"> e-services</a>, <a href="https://publications.waset.org/abstracts/search?q=postilion" title=" postilion"> postilion</a> </p> <a href="https://publications.waset.org/abstracts/36913/e-service-and-the-nigerian-banking-sector-a-review-of-atm-architecture-and-operations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36913.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">635</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">92</span> Powdered Beet Red Roots Using as Adsorbent to Removal of Methylene Blue Dye from Aqueous Solutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulali%20Bashir%20Ben%20Saleh">Abdulali Bashir Ben Saleh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The powdered beet red roots (PBRR) were used as an adsorbent to remove dyes namely methylene blue dye (as a typical cationic or basic dye) from aqueous solutions. The present study shows that used beet red roots powder exhibit adsorption trend for the dye. The adsorption processes were carried out at various conditions of concentrations, processing time and a wide range of pH between 2.5-11. Adsorption isotherm equations such as Freundlich, and Langmuir were applied to calculate the values of respective constants. Adsorption study was found that the currently introduced adsorbent can be used to remove cationic dyes such as methylene blue from aqueous solutions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beet%20red%20root" title="beet red root">beet red root</a>, <a href="https://publications.waset.org/abstracts/search?q=removal%20of%20deys" title=" removal of deys"> removal of deys</a>, <a href="https://publications.waset.org/abstracts/search?q=methylene%20blue" title=" methylene blue"> methylene blue</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a> </p> <a href="https://publications.waset.org/abstracts/22809/powdered-beet-red-roots-using-as-adsorbent-to-removal-of-methylene-blue-dye-from-aqueous-solutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22809.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">333</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">91</span> Time-Dependent Behavior of Damaged Reinforced Concrete Shear Walls Strengthened with Composite Plates Having Variable Fibers Spacing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Redha%20Yeghnem">Redha Yeghnem</a>, <a href="https://publications.waset.org/abstracts/search?q=Laid%20Boulefrakh"> Laid Boulefrakh</a>, <a href="https://publications.waset.org/abstracts/search?q=Sid%20Ahmed%20Meftah"> Sid Ahmed Meftah</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelouahed%20Tounsi"> Abdelouahed Tounsi</a>, <a href="https://publications.waset.org/abstracts/search?q=El%20Abbas%20Adda%20Bedia"> El Abbas Adda Bedia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the time-dependent behavior of damaged reinforced concrete shear wall structures strengthened with composite plates having variable fibers spacing was investigated to analyze their seismic response. In the analytical formulation, the adherent and the adhesive layers are all modeled as shear walls, using the mixed finite element method (FEM). The anisotropic damage model is adopted to describe the damage extent of the RC shear walls. The phenomenon of creep and shrinkage of concrete has been determined by Eurocode 2. Large earthquakes recorded in Algeria (El-Asnam and Boumerdes) have been tested to demonstrate the accuracy of the proposed method. Numerical results are obtained for non uniform distributions of carbon fibers in epoxy matrices. The effects of damage extent and the delay mechanism creep and shrinkage of concrete are highlighted. Prospects are being studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RC%20shear%20wall%20structures" title="RC shear wall structures">RC shear wall structures</a>, <a href="https://publications.waset.org/abstracts/search?q=composite%20plates" title=" composite plates"> composite plates</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=damaged%20reinforced%20concrete%20structures" title=" damaged reinforced concrete structures"> damaged reinforced concrete structures</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a> </p> <a href="https://publications.waset.org/abstracts/35586/time-dependent-behavior-of-damaged-reinforced-concrete-shear-walls-strengthened-with-composite-plates-having-variable-fibers-spacing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35586.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">365</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">90</span> Quantitative and Qualitative Analysis: Predicting and Improving Students’ Summative Assessment Math Scores at the National College for Nuclear</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelmenen%20Abobghala">Abdelmenen Abobghala</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmud%20Ahmed"> Mahmud Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Alwaheshi"> Mohamed Alwaheshi</a>, <a href="https://publications.waset.org/abstracts/search?q=Anwar%20Fanan"> Anwar Fanan</a>, <a href="https://publications.waset.org/abstracts/search?q=Meftah%20Mehdawi"> Meftah Mehdawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abuhatira"> Ahmed Abuhatira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research aims to predict academic performance and identify weak points in students to aid teachers in understanding their learning needs. Both quantitative and qualitative methods are used to identify difficult test items and the factors causing difficulties. The study uses interventions like focus group discussions, interviews, and action plans developed by the students themselves. The research questions explore the predictability of final grades based on mock exams and assignments, the student's response to action plans, and the impact on learning performance. Ethical considerations are followed, respecting student privacy and maintaining anonymity. The research aims to enhance student engagement, motivation, and responsibility for learning. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=prediction" title="prediction">prediction</a>, <a href="https://publications.waset.org/abstracts/search?q=academic%20performance" title=" academic performance"> academic performance</a>, <a href="https://publications.waset.org/abstracts/search?q=weak%20points" title=" weak points"> weak points</a>, <a href="https://publications.waset.org/abstracts/search?q=understanding" title=" understanding"> understanding</a>, <a href="https://publications.waset.org/abstracts/search?q=learning" title=" learning"> learning</a>, <a href="https://publications.waset.org/abstracts/search?q=quantitative%20methods" title=" quantitative methods"> quantitative methods</a>, <a href="https://publications.waset.org/abstracts/search?q=qualitative%20methods" title=" qualitative methods"> qualitative methods</a>, <a href="https://publications.waset.org/abstracts/search?q=formative%20assessments" title=" formative assessments"> formative assessments</a>, <a href="https://publications.waset.org/abstracts/search?q=feedback" title=" feedback"> feedback</a>, <a href="https://publications.waset.org/abstracts/search?q=emotional%20responses" title=" emotional responses"> emotional responses</a>, <a href="https://publications.waset.org/abstracts/search?q=intervention" title=" intervention"> intervention</a>, <a href="https://publications.waset.org/abstracts/search?q=focus%20group%20discussion" title=" focus group discussion"> focus group discussion</a>, <a href="https://publications.waset.org/abstracts/search?q=interview" title=" interview"> interview</a>, <a href="https://publications.waset.org/abstracts/search?q=action%20plan" title=" action plan"> action plan</a>, <a href="https://publications.waset.org/abstracts/search?q=student%20engagement" title=" student engagement"> student engagement</a>, <a href="https://publications.waset.org/abstracts/search?q=motivation" title=" motivation"> motivation</a>, <a href="https://publications.waset.org/abstracts/search?q=responsibility" title=" responsibility"> responsibility</a>, <a href="https://publications.waset.org/abstracts/search?q=ethical%20considerations" title=" ethical considerations"> ethical considerations</a> </p> <a href="https://publications.waset.org/abstracts/170331/quantitative-and-qualitative-analysis-predicting-and-improving-students-summative-assessment-math-scores-at-the-national-college-for-nuclear" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170331.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">67</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">89</span> 1D Klein-Gordon Equation in an Infinite Square Well with PT Symmetry Boundary Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suleiman%20Bashir%20Adamu">Suleiman Bashir Adamu</a>, <a href="https://publications.waset.org/abstracts/search?q=Lawan%20Sani%20Taura"> Lawan Sani Taura</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We study the role of boundary conditions via -symmetric quantum mechanics, where denotes parity operator and denotes time reversal operator. Using the one-dimensional Schrödinger Hamiltonian for a free particle in an infinite square well, we introduce symmetric boundary conditions. We find solutions of the 1D Klein-Gordon equation for a free particle in an infinite square well with Hermitian boundary and symmetry boundary conditions, where in both cases the energy eigenvalues and eigenfunction, respectively, are obtained. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eigenvalues" title="Eigenvalues">Eigenvalues</a>, <a href="https://publications.waset.org/abstracts/search?q=Eigenfunction" title=" Eigenfunction"> Eigenfunction</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamiltonian" title=" Hamiltonian"> Hamiltonian</a>, <a href="https://publications.waset.org/abstracts/search?q=Klein-%20Gordon%20equation" title=" Klein- Gordon equation"> Klein- Gordon equation</a>, <a href="https://publications.waset.org/abstracts/search?q=PT-symmetric%20quantum%20mechanics" title=" PT-symmetric quantum mechanics"> PT-symmetric quantum mechanics</a> </p> <a href="https://publications.waset.org/abstracts/50876/1d-klein-gordon-equation-in-an-infinite-square-well-with-pt-symmetry-boundary-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50876.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">383</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">88</span> Control Flow around NACA 4415 Airfoil Using Slot and Injection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Imine%20Zakaria">Imine Zakaria</a>, <a href="https://publications.waset.org/abstracts/search?q=Meftah%20Sidi%20Mohamed%20El%20Amine"> Meftah Sidi Mohamed El Amine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most vital aerodynamic organs of a flying machine is the wing, which allows it to fly in the air efficiently. The flow around the wing is very sensitive to changes in the angle of attack. Beyond a value, there is a phenomenon of the boundary layer separation on the upper surface, which causes instability and total degradation of aerodynamic performance called a stall. However, controlling flow around an airfoil has become a researcher concern in the aeronautics field. There are two techniques for controlling flow around a wing to improve its aerodynamic performance: passive and active controls. Blowing and suction are among the active techniques that control the boundary layer separation around an airfoil. Their objective is to give energy to the air particles in the boundary layer separation zones and to create vortex structures that will homogenize the velocity near the wall and allow control. Blowing and suction have long been used as flow control actuators around obstacles. In 1904 Prandtl applied a permanent blowing to a cylinder to delay the boundary layer separation. In the present study, several numerical investigations have been developed to predict a turbulent flow around an aerodynamic profile. CFD code was used for several angles of attack in order to validate the present work with that of the literature in the case of a clean profile. The variation of the lift coefficient CL with the momentum coefficient <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFD" title="CFD">CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=control%20flow" title=" control flow"> control flow</a>, <a href="https://publications.waset.org/abstracts/search?q=lift" title=" lift"> lift</a>, <a href="https://publications.waset.org/abstracts/search?q=slot" title=" slot"> slot</a> </p> <a href="https://publications.waset.org/abstracts/133748/control-flow-around-naca-4415-airfoil-using-slot-and-injection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/133748.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">197</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">87</span> Interaction of Non-Gray-Gas Radiation with Opposed Mixed Convection in a Lid-Driven Square Cavity </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Cherifi">Mohammed Cherifi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abderrahmane%20Benbrik"> Abderrahmane Benbrik</a>, <a href="https://publications.waset.org/abstracts/search?q=Siham%20Laouar-Meftah"> Siham Laouar-Meftah</a>, <a href="https://publications.waset.org/abstracts/search?q=Denis%20Lemonnier"> Denis Lemonnier</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present study was conducted to numerically investigate the interaction of non-gray-gas radiation with opposed mixed convection in a vertical two-sided lid-driven square cavity. The opposing flows are simultaneously generated by the vertical boundary walls which slide at a constant speed and the natural convection due to the gradient temperature of differentially heated cavity. The horizontal walls are thermally insulated and perfectly reflective. The enclosure is filled with air-H2O-CO2 gas mixture, which is considered as a non-gray, absorbing, emitting and not scattering medium. The governing differential equations are solved by a ﬁnite-volume method, by adopting the SIMPLER algorithm for pressure–velocity coupling. The radiative transfer equation (RTE) is solved by the discrete ordinates method (DOM). The spectral line weighted sum of gray gases model (SLW) is used to account for non-gray radiation properties. Three cases of the effects of radiation (transparent, gray and non-gray medium) are studied. Comparison is also made with the parametric studies of the effect of the mixed convection parameter, Ri (0.1, 1, 10), on the fluid flow and heat transfer have been performed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=opposed%20mixed%20convection" title="opposed mixed convection">opposed mixed convection</a>, <a href="https://publications.waset.org/abstracts/search?q=non-gray-gas%20radiation" title=" non-gray-gas radiation"> non-gray-gas radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=two-sided%20lid-driven%20cavity" title=" two-sided lid-driven cavity"> two-sided lid-driven cavity</a>, <a href="https://publications.waset.org/abstracts/search?q=discrete%20ordinate%20method" title=" discrete ordinate method"> discrete ordinate method</a>, <a href="https://publications.waset.org/abstracts/search?q=SLW%20model" title=" SLW model"> SLW model</a> </p> <a href="https://publications.waset.org/abstracts/45398/interaction-of-non-gray-gas-radiation-with-opposed-mixed-convection-in-a-lid-driven-square-cavity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45398.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">320</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">86</span> Experimental Study of Application of Steel Slag as Aggregate in Road Construction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Meftah%20M.%20Elsaraiti">Meftah M. Elsaraiti</a>, <a href="https://publications.waset.org/abstracts/search?q=Samir%20Milad%20Elsariti"> Samir Milad Elsariti</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Steel slag is a by-product of the steel production and utilizing it potentially as new or substitute materials in road construction is advantageous regarding cost reduction and flattening improvement or properties pavement. Ease of use, low cost, and resource availability are some of few advantages of reuse and recycling of steel slag. This study assesses the use of Steel Slag Aggregates (SSA) as an alternative to natural road building aggregates. This paper discusses the basic characteristics of steel slag based on extensive laboratory tests, and to determine the possibilities of using steel slag in road construction. Samples were taken from the furnaces directly at different times and dates. Moreover, random samples were also taken from the slag field from various areas at different far distances from each other. A necessary analysis was performed through the use of (XRF). Three different percentages of SSA (0, 50 and 100%) were added as an alternative to natural aggregate in hot mix asphalt (HMA) production. The proposed design of the mix was made according to the Marshall mix design. The results of the experiments revealed that the percentages of iron oxide ranged from (9 to 26%) and that the addition of SSA has a significant improvement on HMA properties. It was observed that the Marshall stability obtained in the mix of 100% slag ranged from 600 to 800 N as a minimum, and the flow of Marshall obtained from 2.4 to 3.23 mm and the specification requires from 2 to 4 mm. The results may be showed possibilities to use steel slag as new or substitute materials in road construction in Libya. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=by-product%20material" title="by-product material">by-product material</a>, <a href="https://publications.waset.org/abstracts/search?q=properties" title=" properties"> properties</a>, <a href="https://publications.waset.org/abstracts/search?q=road%20construction" title=" road construction"> road construction</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20slag" title=" steel slag"> steel slag</a> </p> <a href="https://publications.waset.org/abstracts/93914/experimental-study-of-application-of-steel-slag-as-aggregate-in-road-construction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/93914.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">186</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">85</span> Enhanced Photocatalytic Hydrogen Production on TiO2 by Using Carbon Materials</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bashir%20Ahmmad">Bashir Ahmmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Kensaku%20Kanomata">Kensaku Kanomata</a>, <a href="https://publications.waset.org/abstracts/search?q=Fumihiko%20Hirose"> Fumihiko Hirose</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effect of carbon materials on TiO2 for the photocatalytic hydrogen gas production from water/alcohol mixtures was investigated. Single walled carbon nanotubes (SWNTs), multi walled carbon nanotubes (MWNTs), carbon nanofiber (CNF), fullerene (FLN), graphite (GP), and graphite silica (GS) were used as co-catalysts by directly mixing with TiO2. Drastic synergy effects were found with increase in the amount of hydrogen gas by a factor of ca. 150 and 100 for SWNTs and GS with TiO2, repectively. The order of H2 gas production for these carbon materials was SWNTs > GS >> MWNTs > FLN > CNF > GP. To maximize the hydrogen production from SWNTs/TiO2, various parameters of experimental conditions were changed. Also, a comparison between Pt/TiO2, WNTs/TiO2 and GS/TiO2 was made for the amount of H2 gas production. Finally, the recyclability of SWNTs/TiO2 and GS/TiO2 were tested. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=photocatalysis" title="photocatalysis">photocatalysis</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20materials" title=" carbon materials"> carbon materials</a>, <a href="https://publications.waset.org/abstracts/search?q=alcohol%20reforming" title=" alcohol reforming"> alcohol reforming</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=titanium%20oxide" title=" titanium oxide"> titanium oxide</a> </p> <a href="https://publications.waset.org/abstracts/3272/enhanced-photocatalytic-hydrogen-production-on-tio2-by-using-carbon-materials" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3272.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">489</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">84</span> IoT: State-of-the-Art and Future Directions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bashir%20Abdu%20Muzakkari">Bashir Abdu Muzakkari</a>, <a href="https://publications.waset.org/abstracts/search?q=Aisha%20Umar%20Sulaiman"> Aisha Umar Sulaiman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Afendee%20Muhamad"> Mohamed Afendee Muhamad</a>, <a href="https://publications.waset.org/abstracts/search?q=Sanah%20Abdullahi%20Muaz"> Sanah Abdullahi Muaz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The field of the Internet of Things (IoT) is rapidly expanding and has the potential to completely change how we work, live, and interact with the world. The Internet of Things (IoT) is the term used to describe a network of networked physical objects, including machinery, vehicles, and buildings, which are equipped with electronics, software, sensors, and network connectivity. This review paper aims to provide a comprehensive overview of the current state of IoT, including its definition, key components, development history, and current applications. The paper will also discuss the challenges and opportunities presented by IoT, as well as its potential impact on various industries, such as healthcare, agriculture, and transportation. In addition, this paper will highlight the ethical and security concerns associated with IoT and the need for effective solutions to address these challenges. The paper concludes by highlighting the prospects of IoT and the directions for future research in this field. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=internet%20of%20things" title="internet of things">internet of things</a>, <a href="https://publications.waset.org/abstracts/search?q=IoT" title=" IoT"> IoT</a>, <a href="https://publications.waset.org/abstracts/search?q=sensors" title=" sensors"> sensors</a>, <a href="https://publications.waset.org/abstracts/search?q=network" title=" network"> network</a> </p> <a href="https://publications.waset.org/abstracts/170950/iot-state-of-the-art-and-future-directions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170950.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">174</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">83</span> Experimental Study on the Variation of Young's Modulus of Hollow Clay Brick Obtained from Static and Dynamic Tests</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Aboudalle">M. Aboudalle</a>, <a href="https://publications.waset.org/abstracts/search?q=Le%20Btth"> Le Btth</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Sari"> M. Sari</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Meftah"> F. Meftah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In parallel with the appearance of new materials, brick masonry had and still has an essential part of the construction market today, with new technical challenges in designing bricks to meet additional requirements. Being used in structural applications, predicting the performance of clay brick masonry allows a significant cost reduction, in terms of practical experimentation. The behavior of masonry walls depends on the behavior of their elementary components, such as bricks, joints, and coatings. Therefore, it is necessary to consider it at different scales (from the scale of the intrinsic material to the real scale of the wall) and then to develop appropriate models, using numerical simulations. The work presented in this paper focuses on the mechanical characterization of the terracotta material at ambient temperature. As a result, the static Young’s modulus obtained from the flexural test shows different values in comparison with the compression test, as well as with the dynamic Young’s modulus obtained from the Impulse excitation of vibration test. Moreover, the Young's modulus varies according to the direction in which samples are extracted, where the values in the extrusion direction diverge from the ones in the orthogonal directions. Based on these results, hollow bricks can be considered as transversely isotropic bimodulus material. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bimodulus%20material" title="bimodulus material">bimodulus material</a>, <a href="https://publications.waset.org/abstracts/search?q=hollow%20clay%20brick" title=" hollow clay brick"> hollow clay brick</a>, <a href="https://publications.waset.org/abstracts/search?q=%C4%B1mpulse%20excitation%20of%20vibration" title=" ımpulse excitation of vibration"> ımpulse excitation of vibration</a>, <a href="https://publications.waset.org/abstracts/search?q=transversely%20isotropic%20material" title=" transversely isotropic material"> transversely isotropic material</a>, <a href="https://publications.waset.org/abstracts/search?q=young%E2%80%99s%20modulus" title=" young’s modulus"> young’s modulus</a> </p> <a href="https://publications.waset.org/abstracts/131058/experimental-study-on-the-variation-of-youngs-modulus-of-hollow-clay-brick-obtained-from-static-and-dynamic-tests" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131058.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">197</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">82</span> Internet Versus Muslim Communities Challenges, Problems and Solutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bashir%20Muhammad">Bashir Muhammad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present research contains the definition of the internet, the inter-relationship between and globalization as well as the divergent views of scholars on internet net-work. Additionally, both the positive and the negative impacts of the internet on Muslim communities were elucidated. As an example, it is part of the positive effect that the internet constitutes a vital source of vast information and data acquisition in various academic sciences in general and Islamic Studies in particular. The most recent and current facts and scientific discoveries by specialists of various ramifications could be fund as fast as possible. Many other exciting points were also cited. And on the negative side of the internet, among many other points, it releases uncontrolled promiscuous pictures and sometimes misguiding information about Islam, which could gradually and easily destroy the sound moral up bring of our young Muslim generation and pollute their positive thinking and reasoning. Another problem is that, Muslims in most cases pertaining to internet services are passive consumers, having no power to control it and manipulate it for their welfare and well being. Due to that, they have to pay the price for that, directly or indirectly. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=internet" title="internet">internet</a>, <a href="https://publications.waset.org/abstracts/search?q=muslim" title=" muslim"> muslim</a>, <a href="https://publications.waset.org/abstracts/search?q=challenges" title=" challenges"> challenges</a>, <a href="https://publications.waset.org/abstracts/search?q=communities" title=" communities"> communities</a> </p> <a href="https://publications.waset.org/abstracts/132510/internet-versus-muslim-communities-challenges-problems-and-solutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/132510.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">121</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">81</span> Some Characteristics and Identification of Fungi Contaminated by Alkomos Cement Factory</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulmajeed%20Bashir%20Mlitan">Abdulmajeed Bashir Mlitan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ethan%20Hack"> Ethan Hack</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Soil samples were collected from and around Alkomos cement factory, Alkomos town, Libya. Soil physiochemical properties were determined. In addition, olive leaves were scanned for their fungal content. This work can conclude that the results obtained for the examined physiochemical characteristics of soil in the area studied prove that cement dust from the Alkomos cement factory in Libya has had a significant impact on the soil. The affected soil properties are pH and total calcium content. These characteristics were found to be higher than those in similar soils from the same area. The increment of soil pH in the same area may be a result of precipitation of cement dust over the years. Different responses were found in each season and each site. For instance, the dominance of fungi of soil and leaves was lowest at 100 m from the factory and the evenness and diversity increased at this site compared to the control area and 250 m from the factory. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pollution" title="pollution">pollution</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20microbial" title=" soil microbial"> soil microbial</a>, <a href="https://publications.waset.org/abstracts/search?q=alkomos" title=" alkomos"> alkomos</a>, <a href="https://publications.waset.org/abstracts/search?q=Libya" title=" Libya"> Libya</a> </p> <a href="https://publications.waset.org/abstracts/19051/some-characteristics-and-identification-of-fungi-contaminated-by-alkomos-cement-factory" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19051.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">615</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">80</span> Trajectory Tracking Controller Based on Normalized Right Coprime Factorization Technique for the Ball and Plate System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Martins%20Olatunbosun%20Babatunde">Martins Olatunbosun Babatunde</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammed%20Bashir%20Muazu"> Muhammed Bashir Muazu</a>, <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Adewale%20Adedokun"> Emmanuel Adewale Adedokun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the development of a double-loop trajectory-tracking controller for the ball and plate system (BPS) using the Normalized Right Coprime Factorization (NRCF) scheme.The Linear Algebraic (LA) method is used to design the inner loop required to stabilize the ball, while H-infinity NRCF method, that involved the lead-lag compensator design approach, is used to develop the outer loop that controls the plate. Simulation results show that the plate was stabilized at 0.2989 seconds and the ball was able to settle after 0.9646 seconds, with a trajectory tracking error of 0.0036. This shows that the controller has good adaptability and robustness. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ball%20and%20plate%20system" title="ball and plate system">ball and plate system</a>, <a href="https://publications.waset.org/abstracts/search?q=normalized%20right%20coprime%20factorization" title=" normalized right coprime factorization"> normalized right coprime factorization</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20algebraic%20method" title=" linear algebraic method"> linear algebraic method</a>, <a href="https://publications.waset.org/abstracts/search?q=compensator" title=" compensator"> compensator</a>, <a href="https://publications.waset.org/abstracts/search?q=controller" title=" controller"> controller</a>, <a href="https://publications.waset.org/abstracts/search?q=tracking." title=" tracking."> tracking.</a> </p> <a href="https://publications.waset.org/abstracts/146882/trajectory-tracking-controller-based-on-normalized-right-coprime-factorization-technique-for-the-ball-and-plate-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146882.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">141</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">79</span> Reduction of Patient’s Dose of I-131 Therapy by Used Local Diuretic Juice</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mosab%20kh.%20A.%20A.%20Bashir">Mosab kh. A. A. Bashir</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Mohamed-Ahmed"> E. Mohamed-Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the study is to compare the results of the external exposure and the range of the dose spread by the patients, hospitalized in two different groups of 3-5 d receiving radioiodine therapy because of thyroid cancer, and one of group were giving the local diuretic plant (barley) as local juice. The control group was 28 patients they were isolated as international precautions after taken I-131 capsule 100 mCi, and their external exposure was recorded day by day after first 24 hrs. and the distance for external measurement was 1 m at the abdominal level. The mean of external exposure values of patients at fourth day were 30.24±12.92 µSv h−1. The second group after taking I-131 capsule 100 mCi we were given barley juice (250 mL) after every meal three times on day and their external exposure was recorded day by day after first 24 hrs. The mean of external exposure values of patients of this group at third day was 26.92±9.89 (14-55) µSv h−1. It was observed that the external exposure from the second group clearly decreased to low levels which contributed to the decrease in patient dose and also to the decrease in the exposure from the patient to his/her family. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=local%20diuretic%20juice" title="local diuretic juice">local diuretic juice</a>, <a href="https://publications.waset.org/abstracts/search?q=therapy" title=" therapy"> therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=radiation%20medicine" title=" radiation medicine"> radiation medicine</a>, <a href="https://publications.waset.org/abstracts/search?q=diuretic%20plant" title=" diuretic plant"> diuretic plant</a> </p> <a href="https://publications.waset.org/abstracts/4035/reduction-of-patients-dose-of-i-131-therapy-by-used-local-diuretic-juice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4035.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">316</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">78</span> Rodriguez Diego, Del Valle Martin, Hargreaves Matias, Riveros Jose Luis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nathainail%20Bashir">Nathainail Bashir</a>, <a href="https://publications.waset.org/abstracts/search?q=Neil%20Anderson"> Neil Anderson</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study site was to investigate the current state of the practice with regards to karst detection methods and recommend the best method and pattern of arrays to acquire the desire results. Proper site investigation in karst prone regions is extremely valuable in determining the location of possible voids. Two geophysical techniques were employed: multichannel analysis of surface waves (MASW) and electric resistivity tomography (ERT).The MASW data was acquired at each test location using different array lengths and different array orientations (to increase the probability of getting interpretable data in karst terrain). The ERT data were acquired using a dipole-dipole array consisting of 168 electrodes. The MASW data was interpreted (re: estimated depth to physical top of rock) and used to constrain and verify the interpretation of the ERT data. The ERT data indicates poorer quality MASW data were acquired in areas where there was significant local variation in the depth to top of rock. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dipole-dipole" title="dipole-dipole">dipole-dipole</a>, <a href="https://publications.waset.org/abstracts/search?q=ERT" title=" ERT"> ERT</a>, <a href="https://publications.waset.org/abstracts/search?q=Karst%20terrains" title=" Karst terrains"> Karst terrains</a>, <a href="https://publications.waset.org/abstracts/search?q=MASW" title=" MASW "> MASW </a> </p> <a href="https://publications.waset.org/abstracts/58233/rodriguez-diego-del-valle-martin-hargreaves-matias-riveros-jose-luis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58233.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">315</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">77</span> Critical Review of Web Content Mining Extraction Mechanisms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rabia%20Bashir">Rabia Bashir</a>, <a href="https://publications.waset.org/abstracts/search?q=Sajjad%20Akbar"> Sajjad Akbar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There is an inevitable demand of web mining due to rapid increase of huge information on the Internet, but the striking variety of web structures has made required content retrieval a difficult task. To counter this issue, Web Content Mining (WCM) emerges as a potential candidate which extracts and integrates suitable resources of data to users. In past few years, research has been done on several extraction techniques for WCM i.e. agent-based, template-based, assumption-based, statistic-based, wrapper-based and machine learning. However, it is still unclear that either these approaches are efficiently tackling the significant challenges of WCM or not. To answer this question, this paper identifies these challenges such as language independency, structure flexibility, performance, automation, dynamicity, redundancy handling, intelligence, relevant content retrieval, and privacy. Further, mapping of these challenges is done with existing extraction mechanisms which helps to adopt the most suitable WCM approach, given some conditions and characteristics at hand. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=content%20mining%20challenges" title="content mining challenges">content mining challenges</a>, <a href="https://publications.waset.org/abstracts/search?q=web%20content%20mining" title=" web content mining"> web content mining</a>, <a href="https://publications.waset.org/abstracts/search?q=web%20content%20extraction%20approaches" title=" web content extraction approaches"> web content extraction approaches</a>, <a href="https://publications.waset.org/abstracts/search?q=web%20information%20retrieval" title=" web information retrieval"> web information retrieval</a> </p> <a href="https://publications.waset.org/abstracts/17344/critical-review-of-web-content-mining-extraction-mechanisms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17344.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">548</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">76</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">75</span> Syndromic Surveillance Framework Using Tweets Data Analytics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=David%20Ming%20Liu">David Ming Liu</a>, <a href="https://publications.waset.org/abstracts/search?q=Benjamin%20Hirsch"> Benjamin Hirsch</a>, <a href="https://publications.waset.org/abstracts/search?q=Bashir%20Aden"> Bashir Aden</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Syndromic surveillance is to detect or predict disease outbreaks through the analysis of medical sources of data. Using social media data like tweets to do syndromic surveillance becomes more and more popular with the aid of open platform to collect data and the advantage of microblogging text and mobile geographic location features. In this paper, a Syndromic Surveillance Framework is presented with machine learning kernel using tweets data analytics. Influenza and the three cities Abu Dhabi, Al Ain and Dubai of United Arabic Emirates are used as the test disease and trial areas. Hospital cases data provided by the Health Authority of Abu Dhabi (HAAD) are used for the correlation purpose. In our model, Latent Dirichlet allocation (LDA) engine is adapted to do supervised learning classification and N-Fold cross validation confusion matrix are given as the simulation results with overall system recall 85.595% performance achieved. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Syndromic%20surveillance" title="Syndromic surveillance">Syndromic surveillance</a>, <a href="https://publications.waset.org/abstracts/search?q=Tweets" title=" Tweets"> Tweets</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=data%20mining" title=" data mining"> data mining</a>, <a href="https://publications.waset.org/abstracts/search?q=Latent%20Dirichlet%20allocation%20%28LDA%29" title=" Latent Dirichlet allocation (LDA)"> Latent Dirichlet allocation (LDA)</a>, <a href="https://publications.waset.org/abstracts/search?q=Influenza" title=" Influenza"> Influenza</a> </p> <a href="https://publications.waset.org/abstracts/120850/syndromic-surveillance-framework-using-tweets-data-analytics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120850.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">116</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">74</span> Theoretical Calculation of Wingtip Devices for Agricultural Aircraft</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hashim%20Bashir">Hashim Bashir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Vortex generated at the edges of the wing of an Aircraft are called the Wing Tip Vortex. The Wing Tip Vortices are associated with induced drag. The induced drag is responsible for nearly 50% of aircraft total drag and can be reduced through modifications to the wing tip. Some models displace wingtips vortices outwards diminishing the induced drag. Concerning agricultural aircrafts, wing tip vortex position is really important, while spreading products over a plantation. In this work, theoretical calculations were made in order to study the influence in aerodynamic characteristics and vortex position, over Sudanese agricultural aircraft, by the following types of wing tips: delta tip, winglet and down curved. The down curved tip was better for total drag reduction, but not good referring to vortex position. The delta tip gave moderate improvement on aerodynamic characteristic and on vortex position. The winglet had a better vortex position and lift increment, but caused an undesirable result referring to the wing root bending moment. However, winglet showed better development potential for agricultural aircraft. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wing%20tip%20device" title="wing tip device">wing tip device</a>, <a href="https://publications.waset.org/abstracts/search?q=wing%20tip%20vortice" title=" wing tip vortice"> wing tip vortice</a>, <a href="https://publications.waset.org/abstracts/search?q=agricultural%20aircaft" title=" agricultural aircaft"> agricultural aircaft</a>, <a href="https://publications.waset.org/abstracts/search?q=winglet" title=" winglet"> winglet</a> </p> <a href="https://publications.waset.org/abstracts/57169/theoretical-calculation-of-wingtip-devices-for-agricultural-aircraft" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57169.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 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