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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: Abdulrahman S. Aldawood</title> <meta name="description" content="Search results for: Abdulrahman S. Aldawood"> <meta name="keywords" content="Abdulrahman S. Aldawood"> <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="Abdulrahman S. 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Aldawood"> <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> 111</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Abdulrahman S. Aldawood</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">111</span> Ants of the Genus Trichomyrmex Mayr, 1865 (Hymenoptera: Formicidae) in the Arabian Peninsula, with Description of Two New Species</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mostafa%20R.%20Sharaf">Mostafa R. Sharaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Shehzad%20Salman"> Shehzad Salman</a>, <a href="https://publications.waset.org/abstracts/search?q=Hathal%20M.%20Al%20Dhafer"> Hathal M. Al Dhafer</a>, <a href="https://publications.waset.org/abstracts/search?q=Shahid%20A.%20Akbar"> Shahid A. Akbar</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20S.%20Aldawood"> Abdulrahman S. Aldawood</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The ant genus Trichomyrmex Mayr is revised for the Arabian Peninsula based on the worker caste. Nine species are recognized and descriptions of two new species, T. almosayari sp. n. and T. shakeri sp. n. from Riyadh Province, the Kingdom of Saudi Arabia (KSA) are given. A key to species and diagnostic characters of the treated species are presented. New country records are presented, T. abyssinicus (Forel) for the KSA and T. destructor (Jerdon) and T. mayri (Forel) for the State of Qatar. New distribution records for T. destructor (Jerdon) and T. mayri (Forel) in the KSA are provided. Regional and world distributions, and distribution maps for the treated species are included. Ecological and biological data are given where known. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ants" title="ants">ants</a>, <a href="https://publications.waset.org/abstracts/search?q=Trichomyrmex" title=" Trichomyrmex"> Trichomyrmex</a>, <a href="https://publications.waset.org/abstracts/search?q=Arabian%20Peninsula" title=" Arabian Peninsula"> Arabian Peninsula</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20almosayari" title=" T. almosayari"> T. almosayari</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20shakeri" title=" T. shakeri"> T. shakeri</a> </p> <a href="https://publications.waset.org/abstracts/47451/ants-of-the-genus-trichomyrmex-mayr-1865-hymenoptera-formicidae-in-the-arabian-peninsula-with-description-of-two-new-species" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47451.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">347</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">110</span> Analytical Formulae for Parameters Involved in Side Slopes of Embankments Stability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Abdulrahman">Abdulrahman Abdulrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Abir%20Abdulrahman"> Abir Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The stability of slopes of earthen embankments is usually examined by Swedish slip circle method or the slices method. The factor of safety against sliding using Fellenius procedure depends upon the angle formed by the arc of sliding at the center ψ and the radius of the slip circle r. The values of both mentioned parameters ψ and r aren't precisely predicted because they are measured from the drawing. In this paper, analytical formulae were derived for finding the exact values of both ψ and r. Also this paper presents the different conditions of intersections the slip circle with the body of an earthen dam and the coordinate of intersection points. Numerical examples are chosen for demonstration the proposed solution <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=earthen%20dams%20stability" title="earthen dams stability">earthen dams stability</a>, <a href="https://publications.waset.org/abstracts/search?q=" title=""></a>, <a href="https://publications.waset.org/abstracts/search?q=earthen%20embankments%20stability" title=" earthen embankments stability"> earthen embankments stability</a>, <a href="https://publications.waset.org/abstracts/search?q=" title=" "> </a>, <a href="https://publications.waset.org/abstracts/search?q=Fellenius%20method" title=" Fellenius method"> Fellenius method</a>, <a href="https://publications.waset.org/abstracts/search?q=hydraulic%20structures" title=" hydraulic structures"> hydraulic structures</a>, <a href="https://publications.waset.org/abstracts/search?q=" title=" "> </a>, <a href="https://publications.waset.org/abstracts/search?q=side%20slopes%20stability" title=" side slopes stability"> side slopes stability</a>, <a href="https://publications.waset.org/abstracts/search?q=" title=" "> </a>, <a href="https://publications.waset.org/abstracts/search?q=slices%20method" title=" slices method"> slices method</a>, <a href="https://publications.waset.org/abstracts/search?q=Swedish%20slip%20circle" title=" Swedish slip circle"> Swedish slip circle</a> </p> <a href="https://publications.waset.org/abstracts/92020/analytical-formulae-for-parameters-involved-in-side-slopes-of-embankments-stability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92020.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">165</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">109</span> Analytical Solution for End Depth Ratio in Rectangular Channels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Abdulrahman">Abdulrahman Abdulrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Abir%20Abdulrahman"> Abir Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Free over-fall is an instrument for measuring discharge in open channels by measuring end depth. A comprehensive researchers investigated theoretically and experimentally brink phenomenon with various approaches for different cross-sectional shapes. Anderson's method, based on Boussinq's approximation and energy approach was used to derive a pressure distribution factor at end depth. Applying the one-dimensional momentum equation and the principles of limit slope analysis, a relevant analytical solution may be derived for brink depth ratio (EDR) in prismatic rectangular channel. Also relationships between end depth ratio and slope ratio for a given non-dimensional normal or critical depth with upstream supercritical flow regime are presented. Simple indirect procedure is used to estimate the end depth discharge ratio (EDD) for subcritical and supercritical flow using measured end depth. The comparison of this analysis with all previous theoretical and experimental studies showed an excellent agreement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analytical%20solution" title="analytical solution">analytical solution</a>, <a href="https://publications.waset.org/abstracts/search?q=brink%20depth" title=" brink depth"> brink depth</a>, <a href="https://publications.waset.org/abstracts/search?q=end%20depth" title=" end depth"> end depth</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20measurement" title=" flow measurement"> flow measurement</a>, <a href="https://publications.waset.org/abstracts/search?q=free%20over%20fall" title=" free over fall"> free over fall</a>, <a href="https://publications.waset.org/abstracts/search?q=hydraulics" title=" hydraulics"> hydraulics</a>, <a href="https://publications.waset.org/abstracts/search?q=rectangular%20channel" title=" rectangular channel"> rectangular channel</a> </p> <a href="https://publications.waset.org/abstracts/92286/analytical-solution-for-end-depth-ratio-in-rectangular-channels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92286.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">181</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">108</span> Analytical Solution of Specific Energy Equation in Exponential Channels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Abdulrahman">Abdulrahman Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The specific energy equation has many applications in practical channels, such as exponential channels. In this paper, the governing equation of alternate depth ratio for exponential channels, in general, was investigated towards obtaining analytical solution for the alternate depth ratio in three exponential channel shapes, viz., rectangular, triangular, and parabolic channels. The alternate depth ratio for rectangular channels is quadratic; hence it is very simple to solve. While for parabolic and triangular channels, the alternate depth ratio is cubic and quartic equations, respectively, analytical solution for these equations may be achieved easily for a given Froud number. Different examples are solved to prove the efficiency of the proposed solution. Such analytical solution can be easily used in natural rivers and most of practical channels. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternate%20depth" title="alternate depth">alternate depth</a>, <a href="https://publications.waset.org/abstracts/search?q=analytical%20solution" title=" analytical solution"> analytical solution</a>, <a href="https://publications.waset.org/abstracts/search?q=specific%20energy" title=" specific energy"> specific energy</a>, <a href="https://publications.waset.org/abstracts/search?q=parabolic%20channel" title=" parabolic channel"> parabolic channel</a>, <a href="https://publications.waset.org/abstracts/search?q=rectangular%20channel" title=" rectangular channel"> rectangular channel</a>, <a href="https://publications.waset.org/abstracts/search?q=triangular%20channel" title=" triangular channel"> triangular channel</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20channel%20flow" title=" open channel flow"> open channel flow</a> </p> <a href="https://publications.waset.org/abstracts/121104/analytical-solution-of-specific-energy-equation-in-exponential-channels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/121104.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">198</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">107</span> Analytical Formulae for the Approach Velocity Head Coefficient</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Abdulrahman">Abdulrahman Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Critical depth meters, such as abroad crested weir, Venture Flume and combined control flume are standard devices for measuring flow in open channels. The discharge relation for these devices cannot be solved directly, but it needs iteration process to account for the approach velocity head. In this paper, analytical solution was developed to calculate the discharge in a combined critical depth-meter namely, a hump combined with lateral contraction in rectangular channel with subcritical approach flow including energy losses. Also analytical formulae were derived for approach velocity head coefficient for different types of critical depth meters. The solution was derived by solving a standard cubic equation considering energy loss on the base of trigonometric identity. The advantage of this technique is to avoid iteration process adopted in measuring flow by these devices. Numerical examples are chosen for demonstration of the proposed solution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=broad%20crested%20weir" title="broad crested weir">broad crested weir</a>, <a href="https://publications.waset.org/abstracts/search?q=combined%20control%20meter" title=" combined control meter"> combined control meter</a>, <a href="https://publications.waset.org/abstracts/search?q=control%20structures" title=" control structures"> control structures</a>, <a href="https://publications.waset.org/abstracts/search?q=critical%20flow" title=" critical flow"> critical flow</a>, <a href="https://publications.waset.org/abstracts/search?q=discharge%20measurement" title=" discharge measurement"> discharge measurement</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20control" title=" flow control"> flow control</a>, <a href="https://publications.waset.org/abstracts/search?q=hydraulic%20engineering" title=" hydraulic engineering"> hydraulic engineering</a>, <a href="https://publications.waset.org/abstracts/search?q=hydraulic%20structures" title=" hydraulic structures"> hydraulic structures</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20channel%20flow" title=" open channel flow"> open channel flow</a> </p> <a href="https://publications.waset.org/abstracts/71803/analytical-formulae-for-the-approach-velocity-head-coefficient" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71803.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">274</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">106</span> Numerical Solution of Manning's Equation in Rectangular Channels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Abdulrahman">Abdulrahman Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> When the Manning equation is used, a unique value of normal depth in the uniform flow exists for a given channel geometry, discharge, roughness, and slope. Depending on the value of normal depth relative to the critical depth, the flow type (supercritical or subcritical) for a given characteristic of channel conditions is determined whether or not flow is uniform. There is no general solution of Manning's equation for determining the flow depth for a given flow rate, because the area of cross section and the hydraulic radius produce a complicated function of depth. The familiar solution of normal depth for a rectangular channel involves 1) a trial-and-error solution; 2) constructing a non-dimensional graph; 3) preparing tables involving non-dimensional parameters. Author in this paper has derived semi-analytical solution to Manning's equation for determining the flow depth given the flow rate in rectangular open channel. The solution was derived by expressing Manning's equation in non-dimensional form, then expanding this form using Maclaurin's series. In order to simplify the solution, terms containing power up to 4 have been considered. The resulted equation is a quartic equation with a standard form, where its solution was obtained by resolving this into two quadratic factors. The proposed solution for Manning's equation is valid over a large range of parameters, and its maximum error is within -1.586%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=channel%20design" title="channel design">channel design</a>, <a href="https://publications.waset.org/abstracts/search?q=civil%20engineering" title=" civil engineering"> civil engineering</a>, <a href="https://publications.waset.org/abstracts/search?q=hydraulic%20engineering" title=" hydraulic engineering"> hydraulic engineering</a>, <a href="https://publications.waset.org/abstracts/search?q=open%20channel%20flow" title=" open channel flow"> open channel flow</a>, <a href="https://publications.waset.org/abstracts/search?q=Manning%27s%20equation" title=" Manning's equation"> Manning's equation</a>, <a href="https://publications.waset.org/abstracts/search?q=normal%20depth" title=" normal depth"> normal depth</a>, <a href="https://publications.waset.org/abstracts/search?q=uniform%20flow" title=" uniform flow"> uniform flow</a> </p> <a href="https://publications.waset.org/abstracts/72618/numerical-solution-of-mannings-equation-in-rectangular-channels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72618.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">221</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">105</span> Role of Apolipoprotein E Polymorphism on the Onset of Inflammatory Bowel Disease in Saudi Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ebtissam%20Saleh%20Al-Meghaiseeb">Ebtissam Saleh Al-Meghaiseeb</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulaziz%20Al%20Masood"> Abdulaziz Al Masood</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Al-Robayan"> Abdulrahman Al-Robayan</a>, <a href="https://publications.waset.org/abstracts/search?q=Reem%20Al-Amro"> Reem Al-Amro</a>, <a href="https://publications.waset.org/abstracts/search?q=Misbahul%20Arfin"> Misbahul Arfin</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Al%20Asmari"> Abdulrahman Al Asmari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: The objective of this study was to evaluate the role of apolipoprotein E (APOE) polymorphism on the onset of inflammatory bowel disease (IBD) in Saudi patients. Methods: APOE gene was genotyped to evaluate the frequencies of the alleles and genotypes in Saudi subjects, including IBD patients (n=200) and matched controls (n=200), using APOE StripAssayTM kit (ViennaLab Labordiagnostika GmbH, Vienna, Austria). Results: The frequencies of alleles and genotypes of APOE differed in patients and controls. The APOE allele ε2 and ε4, genotype ε2/ε3 and ε2/ε4 were significantly higher in the IBD patients than the healthy controls. The frequencies of ε3 allele and ε3/ε3 genotype were higher in the control group as compared to patients. The higher prevalence of allele ε2 and ε4 allele in patients compared to that in controls suggested that ε2 and ε4 alleles may increase the risk of IBD. Results also indicated that APOE ε4 allele was associated with early age at onset of IBD. On the other hand, the decreased frequencies of ε3 allele and ε3/ε3 genotype in patients as compared to those in the controls suggested a protective effect of APOE ε3 for IBD susceptibility. In this study, the frequency distribution of APOE alleles and genotypes was not affected by the gender or type of IBD (familial or sporadic). Conclusion: This study indicates that APOE polymorphism plays a significant role in developing IBD and early age of onset in Saudi patients. However, further studies with large-size sample are warranted to confirm this relationship. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=APOE" title="APOE">APOE</a>, <a href="https://publications.waset.org/abstracts/search?q=polymorphism" title=" polymorphism"> polymorphism</a>, <a href="https://publications.waset.org/abstracts/search?q=IBD" title=" IBD"> IBD</a>, <a href="https://publications.waset.org/abstracts/search?q=saudis" title=" saudis"> saudis</a> </p> <a href="https://publications.waset.org/abstracts/156209/role-of-apolipoprotein-e-polymorphism-on-the-onset-of-inflammatory-bowel-disease-in-saudi-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156209.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">112</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">104</span> General Formula for Water Surface Profile over Side Weir in the Combined, Trapezoidal and Exponential, Channels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Abdulrahman">Abdulrahman Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A side weir is a hydraulic structure set into the side of a channel. This structure is used for water level control in channels, to divert flow from a main channel into a side channel when the water level in the main channel exceeds a specific limit and as storm overflows from urban sewerage system. Computation of water surface over the side weirs is essential to determine the flow rate of the side weir. Analytical solutions for water surface profile along rectangular side weir are available only for the special cases of rectangular and trapezoidal channels considering constant specific energy. In this paper, a rectangular side weir located in a combined (trapezoidal with exponential) channel was considered. Expanding binominal series of integer and fraction powers and the using of reduction formula of cosine function integrals, a general analytical formula was obtained for water surface profile along a side weir in a combined (trapezoidal with exponential) channel. Since triangular, rectangular, trapezoidal and parabolic cross-sections are special cases of the combined cross section, the derived formula, is applicable to triangular, rectangular, trapezoidal cross-sections as analytical solution and semi-analytical solution to parabolic cross-section with maximum relative error smaller than 0.76%. The proposed solution should be a useful engineering tool for the evaluation and design of side weirs in open channel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analytical%20solution" title="analytical solution">analytical solution</a>, <a href="https://publications.waset.org/abstracts/search?q=combined%20channel" title=" combined channel"> combined channel</a>, <a href="https://publications.waset.org/abstracts/search?q=exponential%20channel" title=" exponential channel"> exponential channel</a>, <a href="https://publications.waset.org/abstracts/search?q=side%20weirs" title=" side weirs"> side weirs</a>, <a href="https://publications.waset.org/abstracts/search?q=trapezoidal%20channel" title=" trapezoidal channel"> trapezoidal channel</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20surface%20profile" title=" water surface profile"> water surface profile</a> </p> <a href="https://publications.waset.org/abstracts/59960/general-formula-for-water-surface-profile-over-side-weir-in-the-combined-trapezoidal-and-exponential-channels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59960.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">237</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">103</span> A Thorough Analysis on The Dialog Application Replika</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Weeam%20Abdulrahman">Weeam Abdulrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Gawaher%20Al-Madwary"> Gawaher Al-Madwary</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Al-Ammari"> Fatima Al-Ammari</a>, <a href="https://publications.waset.org/abstracts/search?q=Razan%20Mohammad"> Razan Mohammad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research discusses the AI features in Replika which is a dialog with a customized characters application, interaction and communication with AI in different ways that is provided for the user. spreading a survey with questions on how the AI worked is one approach of exposing the app to others to utilize and also we made an analysis that provides us with the conclusion of our research as a result, individuals will be able to try out the app. In the methodology we explain each page that pops up in the screen while using replika and Specify each part and icon. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Replika" title="Replika">Replika</a>, <a href="https://publications.waset.org/abstracts/search?q=AI" title=" AI"> AI</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20intelligence" title=" artificial intelligence"> artificial intelligence</a>, <a href="https://publications.waset.org/abstracts/search?q=dialog%20app" title=" dialog app"> dialog app</a> </p> <a href="https://publications.waset.org/abstracts/145068/a-thorough-analysis-on-the-dialog-application-replika" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145068.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">176</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> Future of Electric Power Generation Technologies: Environmental and Economic Comparison</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20A.%20Bahaddad">Abdulrahman A. Bahaddad</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Beshir"> Mohammed Beshir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this paper is to demonstrate and describe eight different types of power generation technologies and to understand the history and future trends of each technology. In addition, a comparative analysis between these technologies will be presented with respect to their cost analysis and associated performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=conventional%20power%20generation" title="conventional power generation">conventional power generation</a>, <a href="https://publications.waset.org/abstracts/search?q=economic%20analysis" title=" economic analysis"> economic analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20impact" title=" environmental impact"> environmental impact</a>, <a href="https://publications.waset.org/abstracts/search?q=renewable%20energy%20power%20generation" title=" renewable energy power generation"> renewable energy power generation</a> </p> <a href="https://publications.waset.org/abstracts/134690/future-of-electric-power-generation-technologies-environmental-and-economic-comparison" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134690.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">134</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> Successful Treatment of Multifocal XDR Tuberculosis Osteomyelitis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abeer%20N.%20Alshukairi">Abeer N. Alshukairi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20A.%20Alrajhi"> Abdulrahman A. Alrajhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulfattah%20W.%20Alamri"> Abdulfattah W. Alamri</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20F.%20Alothman"> Adel F. Alothman </a> </p> <p class="card-text"><strong>Abstract:</strong></p> We described the nosocomial transmission of a pre-XDR or an MDR case of pulmonary tuberculosis in a HIV negative health care worker in an area endemic for MDR & XDR tuberculosis. With inadequate therapy and non-compliance, his strain developed acquired resistance and he presented with extra-pulmonary XDR tuberculosis in the form of multi-focal osteomyelitis and encysted pleural effusion. He was cured after 2 years of therapy with various anti-tuberculous drugs in addition to interferon gamma. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=osteomyelitis" title="osteomyelitis">osteomyelitis</a>, <a href="https://publications.waset.org/abstracts/search?q=treatment" title=" treatment"> treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=XDR%20tuberculosis" title=" XDR tuberculosis"> XDR tuberculosis</a>, <a href="https://publications.waset.org/abstracts/search?q=successful%20treatment" title=" successful treatment"> successful treatment</a> </p> <a href="https://publications.waset.org/abstracts/23829/successful-treatment-of-multifocal-xdr-tuberculosis-osteomyelitis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23829.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">481</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> 6G: Emerging Architectures, Technologies and Challenges</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Yarali">Abdulrahman Yarali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The advancement of technology never stops because the demands for improved internet and communication connectivity are increasing. Just as 5G networks are rolling out, the world has begun to talk about the sixth-generation networks (6G). The semantics of 6G are more or less the same as 5G networks because they strive to boost speeds, machine-to-machine (M2M) communication, and latency reduction. However, some of the distinctive focuses of 6G include the optimization of networks of machines through super speeds and innovative features. This paper discusses many aspects of the technologies, architectures, challenges, and opportunities of 6G wireless communication systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=6G" title="6G">6G</a>, <a href="https://publications.waset.org/abstracts/search?q=characteristics" title=" characteristics"> characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=infrastructures" title=" infrastructures"> infrastructures</a>, <a href="https://publications.waset.org/abstracts/search?q=technologies" title=" technologies"> technologies</a>, <a href="https://publications.waset.org/abstracts/search?q=AI" title=" AI"> AI</a>, <a href="https://publications.waset.org/abstracts/search?q=ML" title=" ML"> ML</a>, <a href="https://publications.waset.org/abstracts/search?q=IoT" title=" IoT"> IoT</a>, <a href="https://publications.waset.org/abstracts/search?q=applications" title=" applications"> applications</a> </p> <a href="https://publications.waset.org/abstracts/191246/6g-emerging-architectures-technologies-and-challenges" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/191246.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">25</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> The Need to Enhance Online Consumer Protection in KSA</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Aloufi">Abdulrahman Aloufi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> E-commerce has evolved to become a functional and mainstream tool of global trading, including in the Kingdom of Saudi Arabia. Consequently, online consumers need protection just as much as consumers in the offline world. In 2019, the Ministry of Commerce in Saudi Arabia established a so-called ‘e-commerce law’; however, this law does not cover the court enforcement of contracts entered into by international vendors, so it is not applicable in cross-border situations. The purpose of this paper is to identify the gaps present in this new e-commerce law in Saudi Arabia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=consumer%20protection" title="consumer protection">consumer protection</a>, <a href="https://publications.waset.org/abstracts/search?q=e-commerce%20law" title=" e-commerce law"> e-commerce law</a>, <a href="https://publications.waset.org/abstracts/search?q=Saudi%20consumer" title=" Saudi consumer"> Saudi consumer</a>, <a href="https://publications.waset.org/abstracts/search?q=international%20vendor" title=" international vendor"> international vendor</a> </p> <a href="https://publications.waset.org/abstracts/128566/the-need-to-enhance-online-consumer-protection-in-ksa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128566.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">175</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> Flexible Alternative Current Transmission System Impact on Grid Stability and Power Markets</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20M.%20Alsuhaibani">Abdulrahman M. Alsuhaibani</a>, <a href="https://publications.waset.org/abstracts/search?q=Martin%20Maken"> Martin Maken</a> </p> <p class="card-text"><strong>Abstract:</strong></p> FACTS devices have great influence on the grid stability and power markets price. Recently, there is intent to integrate a large scale of renewable energy sources to the power system which in turn push the power system to operate closer to the security limits. This paper discusses the power system stability and reliability improvement that could be achieved by using FACTS. There is a comparison between FACTS devices to evaluate their performance for different functions. A case study has also been made about its effect on reducing generation cost and minimizing transmission losses which have good impact on efficient and economic operation of electricity markets <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FACTS" title="FACTS">FACTS</a>, <a href="https://publications.waset.org/abstracts/search?q=grid%20stability" title=" grid stability"> grid stability</a>, <a href="https://publications.waset.org/abstracts/search?q=spot%20price" title=" spot price"> spot price</a>, <a href="https://publications.waset.org/abstracts/search?q=OPF" title=" OPF"> OPF</a> </p> <a href="https://publications.waset.org/abstracts/150397/flexible-alternative-current-transmission-system-impact-on-grid-stability-and-power-markets" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150397.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">157</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> Ophthalmic Ultrasound in the Diagnosis of Retinoblastoma</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Algaeed">Abdulrahman Algaeed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Ophthalmic Ultrasound is the easiest method of early diagnosing Retinoblastoma after clinical examination. It can be done with ease without sedation. King Khaled Eye Specialist Hospital is a tertiary care center where Retinoblastoma patients are often seen and treated there. The first modality to rule out the disease is Ophthalmic Ultrasound. Classic Retinoblastoma is easily diagnosed by using the conventional 10MHz Ophthalmic Ultrasound probe in the regular clinic setup. Retinal lesion with multiple, very highly reflective surfaces within lesion typical of Calcium deposits. The use of Standardized A-scan is very useful where internal reflectivity is classified as very highly reflective. Color Doppler is extremely useful as well to show the blood flow within lesion/s. In conclusion: Ophthalmic Ultrasound should be the first tool to be used to diagnose Retinoblastoma after clinical examination. The accuracy of the Exam is very high. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=doppler" title="doppler">doppler</a>, <a href="https://publications.waset.org/abstracts/search?q=retinoblastoma" title=" retinoblastoma"> retinoblastoma</a>, <a href="https://publications.waset.org/abstracts/search?q=reflectivity" title=" reflectivity"> reflectivity</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasound" title=" ultrasound"> ultrasound</a> </p> <a href="https://publications.waset.org/abstracts/165364/ophthalmic-ultrasound-in-the-diagnosis-of-retinoblastoma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165364.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">113</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> Investigation on Choosing the Suitable Geometry of the Solar Air Heater to Certain Conditions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20M.%20Homadi">Abdulrahman M. Homadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study focuses on how to control the outlet temperature of a solar air heater in a way simpler than the existing methods. In this work, five cases have been studied by using ANSYS Fluent based on a CFD numerical method. All the cases have been simulated by utilizing the same criteria and conditions like the temperature, materials, areas except the geometry. The case studies are conducted in Little Rock (LR), AR, USA during the winter time supposedly on 15<sup>th</sup> of December. A fresh air that is flowing with a velocity of 0.5 m/s and a flow rate of 0.009 m<sup>3</sup>/s. The results prove the possibility of achieving a controlled temperature just by changing the geometric shape of the heater. This geometry guarantees that the absorber plate always has a normal component of the solar radiation at any time during the day. The heater has a sectarian shape with a radius of 150 mm where the outlet temperature remains almost constant for six hours. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20energy" title="solar energy">solar energy</a>, <a href="https://publications.waset.org/abstracts/search?q=air%20heater" title=" air heater"> air heater</a>, <a href="https://publications.waset.org/abstracts/search?q=control%20of%20temperature" title=" control of temperature"> control of temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a> </p> <a href="https://publications.waset.org/abstracts/51439/investigation-on-choosing-the-suitable-geometry-of-the-solar-air-heater-to-certain-conditions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51439.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">337</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> Mesquite (Prosopis juliflora) Pods as a Local Alternative to Feed Poultry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Al-Soqeer">Abdulrahman Al-Soqeer</a>, <a href="https://publications.waset.org/abstracts/search?q=Osamah%20Fahmy"> Osamah Fahmy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research was aimed to investigate the possibility of using Prosopis juliflora pods as a fodder source for poultry. The study have shown that the inclusion of ground Prosopis pods in a broiler diet added some positive effects on broiler performance such as improving carcasses weight and reducing the weights of the inedible parts. The obtained results encourage repeating the experiment with an increased percentage of Prosopis supplementation in the broiler diets, using some treatments on the Prosopis pods to reduce the undesirable effects of the antinutritional factors in the pods and to increase the percentage of the essential amino acids present in the pods (lysine, methionine, arginine, histidine, isoleucine, leucine and phenylealanine) up to the limits recommended for broilers by NRC 1990. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=amino%20acids" title="amino acids">amino acids</a>, <a href="https://publications.waset.org/abstracts/search?q=arginine" title=" arginine"> arginine</a>, <a href="https://publications.waset.org/abstracts/search?q=broilers" title=" broilers"> broilers</a>, <a href="https://publications.waset.org/abstracts/search?q=lysine" title=" lysine"> lysine</a>, <a href="https://publications.waset.org/abstracts/search?q=methionine" title=" methionine"> methionine</a> </p> <a href="https://publications.waset.org/abstracts/30561/mesquite-prosopis-juliflora-pods-as-a-local-alternative-to-feed-poultry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30561.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">239</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> Meeting the Challanges of Regulating Artificial Intelligence</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20S.%20%20Shryan%20Aldossary">Abdulrahman S. Shryan Aldossary</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Globally, artificial intelligence (AI) is already performing legitimate tasks on behalf of humans. In Saudi Arabia, large-scale national projects, primarily based on AI technologies and receiving billions of dollars of funding, are projected for completion by 2030. However, the legal aspect of these projects is seriously vulnerable, given AI’s unprecedented ability to self-learn and act independently. This paper, therefore, identifies the critical legal aspects of AI that authorities and policymakers should be aware of, specifically whether AI can possess identity and be liable for the risk of public harm. The article begins by identifying the problematic characteristics of AI and what should be considered by legal experts when dealing with it. Also discussed are the possible competent institutions that could regulate AI in Saudi Arabia. Finally, a procedural proposal is presented for controlling AI, focused on Saudi Arabia but potentially of interest to other jurisdictions facing similar concerns about AI safety. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=regulation" title="regulation">regulation</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20intelligence" title=" artificial intelligence"> artificial intelligence</a>, <a href="https://publications.waset.org/abstracts/search?q=tech%20law" title=" tech law"> tech law</a>, <a href="https://publications.waset.org/abstracts/search?q=automated%20systems" title=" automated systems"> automated systems</a> </p> <a href="https://publications.waset.org/abstracts/143089/meeting-the-challanges-of-regulating-artificial-intelligence" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143089.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">175</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> CuFeOx-Based Nano-Rose Electrocatalysts for Oxygen Evolution Reaction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamad%20Almohamadi">Hamad Almohamadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nabeel%20H.%20Alharthi"> Nabeel H. Alharthi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Aljabri"> Abdulrahman Aljabri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, two-dimensional CuFeOx is deposited on nickel foam for the fabrication of electrocatalyst for oxygen evolution reaction (OER). The in-situ hydrothermal synthesis of CuFeOx in presence of aloe vera extract was found to yield unique nano-rose-like morphology which aided to improve the electrochemical surface area of the electrode. The phytochemical assisted synthesis of CuFeOx using 75% aloe vera extract resulted in improved OER electrocatalytic performance by attaining the overpotential of 310 mV for 50 mA cm−2 and 410 mV for 100 mA cm−2. The electrode also sustained robust stability throughout the 50 h of chronopotentiometry studies under alkaline electrolyte conditions, thus proving to be prospective electrode material for efficient OER in electrochemical water splitting. <p class="card-text"><strong>Keywords:</strong> <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=phytochemicals" title=" phytochemicals"> phytochemicals</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen%20evaluation%20reaction" title=" oxygen evaluation reaction"> oxygen evaluation reaction</a>, <a href="https://publications.waset.org/abstracts/search?q=Tafel%27s%20slope" title=" Tafel's slope"> Tafel's slope</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a> </p> <a href="https://publications.waset.org/abstracts/165993/cufeox-based-nano-rose-electrocatalysts-for-oxygen-evolution-reaction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/165993.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">92</span> A Resource Based View: Perspective on Acquired Human Resource towards Competitive Advantage </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Monia%20Hassan%20Abdulrahman">Monia Hassan Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Resource-based view is built on many theories in addition to diverse perspectives, we extend this view placing emphasis on human resources addressing the tools required to sustain competitive advantage. Highlighting on several theories and judgments, assumptions were established to clearly reach if resource possession alone suffices for the sustainability of competitive advantage, or necessary accommodation are required for better performance. New practices were indicated in terms of resources used in firms, these practices were implemented on the human resources in particular, and results were developed in compliance to the mentioned assumptions. Such results drew attention to the significance of practices that provide enhancement of human resources that have a core responsibility of maintaining resource-based view for an organization to lead the way to gaining competitive advantage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=competitive%20advantage" title="competitive advantage">competitive advantage</a>, <a href="https://publications.waset.org/abstracts/search?q=resource%20based%20value" title=" resource based value"> resource based value</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20resources" title=" human resources"> human resources</a>, <a href="https://publications.waset.org/abstracts/search?q=strategic%20management" title=" strategic management"> strategic management</a> </p> <a href="https://publications.waset.org/abstracts/1950/a-resource-based-view-perspective-on-acquired-human-resource-towards-competitive-advantage" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1950.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">391</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> Fluid Flow in Roughened Square Tube for Internal Blade Cooling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20H.%20Alhajeri">M. H. Alhajeri</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamad%20M.%20Alhajeri"> Hamad M. Alhajeri</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20H.%20Alenezi"> A. H. Alenezi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Almutairi"> Abdulrahman Almutairi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayedh%20Alajmi"> Ayedh Alajmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A computational investigation has been undertaken to study fluid flow through roughened tube with turbulators. Such flows are of particular interest in cooling internally high pressure turbine blades. Turbulators are fixed in each side of the passage (tube) to promote turbulence and enhance heat transfer. The tube had an aspect ratio of 1 and the position of the ribs closest to the bend are at 0.45d from the entrance and exit of the bend. The aim of this study is to examine the tube roughened by turbulator by studying some flow parameters upstream and downstream of the turbulator. It is cleared that the eddies sizes are decreased downstream in the first two turbulators and increased after the turbulators increases the turbulence in the tube and enhanced the heat transfer in the blade. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fluid%20flow" title="fluid flow">fluid flow</a>, <a href="https://publications.waset.org/abstracts/search?q=turbulator" title=" turbulator"> turbulator</a>, <a href="https://publications.waset.org/abstracts/search?q=computation" title=" computation"> computation</a>, <a href="https://publications.waset.org/abstracts/search?q=blade" title=" blade"> blade</a> </p> <a href="https://publications.waset.org/abstracts/74458/fluid-flow-in-roughened-square-tube-for-internal-blade-cooling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74458.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">426</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> Estimation of Enantioresolution of Multiple Stereogenic Drugs Using Mobilized and/or Immobilized Polysaccharide-Based HPLC Chiral Stationary Phases</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Hefnawy">Mohamed Hefnawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Al-Majed"> Abdulrahman Al-Majed</a>, <a href="https://publications.waset.org/abstracts/search?q=Aymen%20Al-Suwailem"> Aymen Al-Suwailem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Enantioseparation of drugs with multiple stereogenic centers is challenging. This study objectives to evaluate the efficiency of different mobilized and/or immobilized polysaccharide-based chiral stationary phases to separate enantiomers of some drugs containing multiple stereogenic centers namely indenolol, nadolol, labetalol. The critical mobile phase variables (composition of organic solvents, acid/base ratios) were carefully studied to compare the retention time and elution order of all isomers. Different chromatographic parameters such as capacity factor (k), selectivity (α) and resolution (Rs) were calculated. Experimental conditions and the possible chiral recognition mechanisms have been discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=HPLC" title="HPLC">HPLC</a>, <a href="https://publications.waset.org/abstracts/search?q=polysaccharide%20columns" title=" polysaccharide columns"> polysaccharide columns</a>, <a href="https://publications.waset.org/abstracts/search?q=enantio-resolution" title=" enantio-resolution"> enantio-resolution</a>, <a href="https://publications.waset.org/abstracts/search?q=indenolol" title=" indenolol"> indenolol</a>, <a href="https://publications.waset.org/abstracts/search?q=nadolol" title=" nadolol"> nadolol</a>, <a href="https://publications.waset.org/abstracts/search?q=labetalol" title=" labetalol"> labetalol</a> </p> <a href="https://publications.waset.org/abstracts/21594/estimation-of-enantioresolution-of-multiple-stereogenic-drugs-using-mobilized-andor-immobilized-polysaccharide-based-hplc-chiral-stationary-phases" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21594.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">450</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> A Review of Deformation and Settlement Monitoring on the Field: Types and Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Ali">Hassan Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Hamid"> Abdulrahman Hamid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper discusses using of instruments to monitor deformation and settlement. Specifically, it concentrates on field instruments such as inclinometer and plate load test and their applications in the field. Inclinometer has been used effectively to monitor lateral earth movements and settlement in landslide areas, embankments and foundations. They are also used to monitor the deflection of retaining walls and piles under load. This paper is reviewing types of inclinometer systems, comparison between systems, applications, field accuracy and correction. The paper also will present a case study of using inclinometer to monitor the creep movements within the ancient landslide on The Washington Park Station. Furthermore, the application of deformation and settlement instruments in Saudi Arabia will be discussed in this manuscript. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=inclinometer" title="inclinometer">inclinometer</a>, <a href="https://publications.waset.org/abstracts/search?q=plate%20load%20test" title=" plate load test"> plate load test</a>, <a href="https://publications.waset.org/abstracts/search?q=backfills" title=" backfills"> backfills</a>, <a href="https://publications.waset.org/abstracts/search?q=sand" title=" sand"> sand</a>, <a href="https://publications.waset.org/abstracts/search?q=deformation%20and%20settlement" title=" deformation and settlement"> deformation and settlement</a> </p> <a href="https://publications.waset.org/abstracts/41331/a-review-of-deformation-and-settlement-monitoring-on-the-field-types-and-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41331.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">280</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> Indoor Thermal Comfort in Educational Buildings in the State of Kuwait</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sana%20El-Azzeh">Sana El-Azzeh</a>, <a href="https://publications.waset.org/abstracts/search?q=Farraj%20Al-Ajmi"> Farraj Al-Ajmi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Al-Aqqad"> Abdulrahman Al-Aqqad</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Salem"> Mohamed Salem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Thermal comfort is defined according to ANSI/ASHRAE Standard 55 as a condition of mind that expresses satisfaction with the thermal environment and is assessed by subjective evaluation. Sustaining this standard of thermal comfort for occupants of buildings or other enclosures is one of the important goals of HVAC design engineers. This paper presents a study of thermal comfort and adaptive behaviors of occupants who occupies two locations at the campus of the Australian College of Kuwait. A longitudinal survey and field measurement were conducted to measure thermal comfort, adaptive behaviors, and indoor environment qualities. The study revealed that female occupants in the selected locations felt warmer than males and needed more air velocity and lower temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=indoor%20thermal%20comfort" title="indoor thermal comfort">indoor thermal comfort</a>, <a href="https://publications.waset.org/abstracts/search?q=educational%20facility" title=" educational facility"> educational facility</a>, <a href="https://publications.waset.org/abstracts/search?q=gender%20analysis" title=" gender analysis"> gender analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=dry%20desert%20climate" title=" dry desert climate"> dry desert climate</a> </p> <a href="https://publications.waset.org/abstracts/132734/indoor-thermal-comfort-in-educational-buildings-in-the-state-of-kuwait" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/132734.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">157</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> Olefin and Paraffin Separation Using Simulations on Extractive Distillation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Naeem">Muhammad Naeem</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20A.%20Al-Rabiah"> Abdulrahman A. Al-Rabiah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Technical mixture of C4 containing 1-butene and n-butane are very close to each other with respect to their boiling points i.e. -6.3°C for 1-butene and -1°C for n-butane. Extractive distillation process is used for the separation of 1-butene from the existing mixture of C4. The solvent is the essential of extractive distillation, and an appropriate solvent shows an important role in the process economy of extractive distillation. Aspen Plus has been applied for the separation of these hydrocarbons as a simulator; moreover NRTL activity coefficient model was used in the simulation. This model indicated that the material balances in this separation process were accurate for several solvent flow rates. Mixture of acetonitrile and water used as a solvent and 99 % pure 1-butene was separated. This simulation proposed the ratio of the feed to solvent as 1 : 7.9 and 15 plates for the solvent recovery column, previously feed to solvent ratio was more than this and the proposed plates were 30, which can economize the separation process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=extractive%20distillation" title="extractive distillation">extractive distillation</a>, <a href="https://publications.waset.org/abstracts/search?q=1-butene" title=" 1-butene"> 1-butene</a>, <a href="https://publications.waset.org/abstracts/search?q=Aspen%20Plus" title=" Aspen Plus"> Aspen Plus</a>, <a href="https://publications.waset.org/abstracts/search?q=ACN%20solvent" title=" ACN solvent "> ACN solvent </a> </p> <a href="https://publications.waset.org/abstracts/10500/olefin-and-paraffin-separation-using-simulations-on-extractive-distillation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10500.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">448</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> Numerical Simulation of Two-Dimensional Porous Cylinder Flow in In-Line Arrangement</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamad%20Alhajeri">Hamad Alhajeri</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Almutairi"> Abdulrahman Almutairi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20H.%20Alenezi"> A. H. Alenezi</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20H.%20Alhajeri"> M. H. Alhajeri</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayedh%20Alajmi"> Ayedh Alajmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The flow around three porous cylinders in inline arrangement is investigated in this paper computationally using the commercial code FLUENT. The arrangement generally operates with the dirty gases passing through the porous cylinders, the particulate material being deposited on the outside of the cylinders. However, in a combined cycle power plant, filtration is required to allow the hot exhaust gases to be fed to a turbine without causing any physical damage to the turbine blades. Three cylinder elements are placed in a two-dimensional rectangle duct with fixed face velocity and varying the velocity ratio between the approach and face velocity. Particle trajectories are obtained for a number of particle diameters and different inlet (approach) velocity to face filtration velocity ratios to investigate the behavior of particles around the cylinder. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=porous%20cylinders" title="porous cylinders">porous cylinders</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=fluid%20flow" title=" fluid flow"> fluid flow</a>, <a href="https://publications.waset.org/abstracts/search?q=filtration" title=" filtration"> filtration</a> </p> <a href="https://publications.waset.org/abstracts/82446/numerical-simulation-of-two-dimensional-porous-cylinder-flow-in-in-line-arrangement" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82446.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">484</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> An Automatic Feature Extraction Technique for 2D Punch Shapes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Awais%20Ahmad%20Khan">Awais Ahmad Khan</a>, <a href="https://publications.waset.org/abstracts/search?q=Emad%20Abouel%20Nasr"> Emad Abouel Nasr</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20M.%20A.%20Hussein"> H. M. A. Hussein</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Al-Ahmari"> Abdulrahman Al-Ahmari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sheet-metal parts have been widely applied in electronics, communication and mechanical industries in recent decades; but the advancement in sheet-metal part design and manufacturing is still behind in comparison with the increasing importance of sheet-metal parts in modern industry. This paper presents a methodology for automatic extraction of some common 2D internal sheet metal features. The features used in this study are taken from Unipunch ™ catalogue. The extraction process starts with the data extraction from STEP file using an object oriented approach and with the application of suitable algorithms and rules, all features contained in the catalogue are automatically extracted. Since the extracted features include geometry and engineering information, they will be effective for downstream application such as feature rebuilding and process planning. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=feature%20extraction" title="feature extraction">feature extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=internal%20features" title=" internal features"> internal features</a>, <a href="https://publications.waset.org/abstracts/search?q=punch%20shapes" title=" punch shapes"> punch shapes</a>, <a href="https://publications.waset.org/abstracts/search?q=sheet%20metal" title=" sheet metal"> sheet metal</a> </p> <a href="https://publications.waset.org/abstracts/45001/an-automatic-feature-extraction-technique-for-2d-punch-shapes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45001.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">616</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> Process Simulation of 1-Butene Separation from C4 Mixture by Extractive Distillation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Naeem">Muhammad Naeem</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20A.%20Al-Rabiah"> Abdulrahman A. Al-Rabiah</a>, <a href="https://publications.waset.org/abstracts/search?q=Wasif%20Mughees"> Wasif Mughees</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Technical mixture of C4 containing 1-butene and n-butane are very close to each other with regard to their boiling points i.e. -6.3°C for 1-butene and -1°C for n-butane. Extractive distillation process is used for the separation of 1-butene from the existing mixture of C4. The solvent is the essential of extractive distillation, and an appropriate solvent plays an important role in the process economy of extractive distillation. Aspen Plus has been applied for the separation of these hydrocarbons as a simulator. Moreover, NRTL activity coefficient model was used in the simulation. This model indicated that the material balances in this separation process were accurate for several solvent flow rates. Mixture of acetonitrile and water used as a solvent and 99% pure 1-butene was separated. This simulation proposed the ratio of the feed to solvent as 1: 7.9 and 15 plates for the solvent recovery column. Previously feed to solvent ratio was more than this and the number of proposed plates were 30, which shows that the separation process can be economized. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=extractive%20distillation" title="extractive distillation">extractive distillation</a>, <a href="https://publications.waset.org/abstracts/search?q=1-butene" title=" 1-butene"> 1-butene</a>, <a href="https://publications.waset.org/abstracts/search?q=aspen%20plus" title=" aspen plus"> aspen plus</a>, <a href="https://publications.waset.org/abstracts/search?q=ACN%20solvent" title=" ACN solvent"> ACN solvent</a> </p> <a href="https://publications.waset.org/abstracts/5813/process-simulation-of-1-butene-separation-from-c4-mixture-by-extractive-distillation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5813.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">544</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> Evaluation of Fluoride Contents of Kirkuk City's Drinking Water and Its Source: Lesser Zab River and Its Effect on Human Health</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abbas%20R.%20Ali">Abbas R. Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Safa%20H.%20Abdulrahman"> Safa H. Abdulrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, forty samples had been collected from water of Lesser Zab River and drinking water to determine fluoride concentration and show the impact of fluoride on general health of society of Kirkuk city. Estimation of fluoride concentration and determination of its proportion in water samples were performed attentively using a fluoride ion selective electrode. The fluoride concentrations in the Lesser Zab River samples were between 0.0265 ppm and 0.0863 ppm with an average of 0.0451 ppm, whereas the average fluoride concentration in drinking water samples was 0.102 ppm and ranged from 0.010 to 0.289 ppm. A comparison between results obtained with World Health Organization (WHO) show a low concentration of fluoride in the samples of the study. Thus, for health concerns we should increase the concentration of this ion in water of Kirkuk city at least to about (1.0 ppm) and this will take place after fluorination process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fluoride%20concentration" title="fluoride concentration">fluoride concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=lesser%20zab%20river" title=" lesser zab river"> lesser zab river</a>, <a href="https://publications.waset.org/abstracts/search?q=drinking%20water" title=" drinking water"> drinking water</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20society" title=" health society"> health society</a>, <a href="https://publications.waset.org/abstracts/search?q=Kirkuk%20city" title=" Kirkuk city"> Kirkuk city</a> </p> <a href="https://publications.waset.org/abstracts/51317/evaluation-of-fluoride-contents-of-kirkuk-citys-drinking-water-and-its-source-lesser-zab-river-and-its-effect-on-human-health" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51317.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">371</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> Melting and Making Zn-Based Alloys and Examine Their Biodegradable and Biocompatible Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20Sumayli">Abdulrahman Sumayli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Natural Zinc has many significant biological functions, including developments and sustainable of bones and wound healing. Metallic zinc has recently been explored as potential biomaterials that have preferable biodegradable, biocompatible, and mechanical properties. Pure metal zinc has a preferable physical and mechanical properties for biodegradable and biocompatible applications such as density and modulus of elasticity. The aim of the research is to make different Zn-based metallic alloys and test them effectively to be used as biocompatible and biodegradable materials in the field biomedical application. Microstructure study of the as-cast alloys will be examined using SEM (scanning electron microscope) followed by X-ray diffraction investigated so as to evaluate phase constitution of the designed alloys. After that, immersion test and electrochemical test will be applied to the designed alloys so as to study bio corrosion behaviour of the proposed alloys. Finally, in vitro cytocompatibility well conducted to study biocompatibility of the made alloys. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zn-based%20alloys" title="Zn-based alloys">Zn-based alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=biodegradable%20and%20biocompatible%20materials" title=" biodegradable and biocompatible materials"> biodegradable and biocompatible materials</a>, <a href="https://publications.waset.org/abstracts/search?q=cytotoxicity%20test" title=" cytotoxicity test"> cytotoxicity test</a>, <a href="https://publications.waset.org/abstracts/search?q=neutron%20synchrotron%20imaging" title=" neutron synchrotron imaging"> neutron synchrotron imaging</a> </p> <a href="https://publications.waset.org/abstracts/110848/melting-and-making-zn-based-alloys-and-examine-their-biodegradable-and-biocompatible-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/110848.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> <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=Abdulrahman%20S.%20Aldawood&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20S.%20Aldawood&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20S.%20Aldawood&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Abdulrahman%20S.%20Aldawood&page=2" 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