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Hammam</title> <meta name="description" content="Search results for: Ridha Hammam"> <meta name="keywords" content="Ridha Hammam"> <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 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Ridha Hammam"> <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> 40</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Ridha Hammam</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> Eco-Hammam Initiative: Replicating the FSAC Model for Sustainable Wastewater Treatment and Resource Reuse in Dar Bouazza, Morocco</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nihad%20Chakri">Nihad Chakri</a>, <a href="https://publications.waset.org/abstracts/search?q=Btissam%20El%20Amrani"> Btissam El Amrani</a>, <a href="https://publications.waset.org/abstracts/search?q=Faouzi%20Berrada"> Faouzi Berrada</a>, <a href="https://publications.waset.org/abstracts/search?q=Halima%20Jounaid"> Halima Jounaid</a>, <a href="https://publications.waset.org/abstracts/search?q=Fouad%20Amraoui"> Fouad Amraoui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the context of the increasing water resource scarcity in Morocco in recent years, the use of unconventional resources has become imperative. Although efforts have been made in the field of sanitation in urban areas, rural areas, due to their specificities, such as scattered dwellings and limited accessibility, suffer from a lack of basic infrastructure. This work focuses on replicating the Faculty of Sciences Ain Chock (FSAC) model for the treatment and reuse of wastewater from a peri-urban traditional hammam in Casablanca, specifically in the municipality of Dar Bouazza. This initiative is part of the Eco-Hammam project, which aims to minimize the negative impacts of traditional hammams in terms of irrational and uncontrolled consumption of water and wood energy resources. To achieve this, a comprehensive environmental diagnosis of all hammams in the municipality of Dar Bouazza, our study site, has been undertaken. Then, a feasibility study is also conducted to assess the possibility of replicating the FSAC mini-station to treat the wastewater of the selected pilot hammam, namely, My Yacoub II. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=water%20resource%20scarcity" title="water resource scarcity">water resource scarcity</a>, <a href="https://publications.waset.org/abstracts/search?q=unconventional%20resources" title=" unconventional resources"> unconventional resources</a>, <a href="https://publications.waset.org/abstracts/search?q=sanitation" title=" sanitation"> sanitation</a>, <a href="https://publications.waset.org/abstracts/search?q=per-urban%20areas" title=" per-urban areas"> per-urban areas</a>, <a href="https://publications.waset.org/abstracts/search?q=rural%20areas" title=" rural areas"> rural areas</a>, <a href="https://publications.waset.org/abstracts/search?q=basic%20infrastructure" title=" basic infrastructure"> basic infrastructure</a>, <a href="https://publications.waset.org/abstracts/search?q=replication" title=" replication"> replication</a>, <a href="https://publications.waset.org/abstracts/search?q=reuse%20of%20wastewater" title=" reuse of wastewater"> reuse of wastewater</a>, <a href="https://publications.waset.org/abstracts/search?q=traditional%20hammam" title=" traditional hammam"> traditional hammam</a>, <a href="https://publications.waset.org/abstracts/search?q=Casablanca" title=" Casablanca"> Casablanca</a>, <a href="https://publications.waset.org/abstracts/search?q=Municipality%20of%20Dar%20Bouazza" title=" Municipality of Dar Bouazza"> Municipality of Dar Bouazza</a>, <a href="https://publications.waset.org/abstracts/search?q=negative%20impacts" title=" negative impacts"> negative impacts</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20diagnosis" title=" environmental diagnosis"> environmental diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=feasibility%20study" title=" feasibility study"> feasibility study</a>, <a href="https://publications.waset.org/abstracts/search?q=pilot%20hammam" title=" pilot hammam"> pilot hammam</a>, <a href="https://publications.waset.org/abstracts/search?q=My%20Yacoub%20II" title=" My Yacoub II"> My Yacoub II</a> </p> <a href="https://publications.waset.org/abstracts/176379/eco-hammam-initiative-replicating-the-fsac-model-for-sustainable-wastewater-treatment-and-resource-reuse-in-dar-bouazza-morocco" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176379.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">63</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">39</span> Zn, Sb, Pb (Au) Mineralization of Hammam N’bails, NE of Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Brahim%20Merdas">Brahim Merdas</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelhak%20Boutaleb"> Abdelhak Boutaleb </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polymetallic mineralizations with Zn, Sb, Pb boxed in miopliocene limestones of Hammam N’bails’s basin are regarded as the youngest mineralizations of North East of Algeria and are characterized by the presence of rather rare mineral phases throughout the world such as nadorite and flajolotite. Mineralization seems to have a bond with thermal springs emergent within the basin and with the faults which limit the basin. The comparison between mineralizations and similar ore deposits known in the world and which are characterized by the presence of the noble metals such as gold and the discovery of traces of this metal (1.4g/t) enables us to start again the problems of the noble metals of the type “low sulfidation” related to the thermal springs in the area in particular and in all Algerian North generally. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadorite" title="Nadorite">Nadorite</a>, <a href="https://publications.waset.org/abstracts/search?q=galana" title=" galana"> galana</a>, <a href="https://publications.waset.org/abstracts/search?q=gold" title=" gold"> gold</a>, <a href="https://publications.waset.org/abstracts/search?q=dolomitisation" title=" dolomitisation"> dolomitisation</a>, <a href="https://publications.waset.org/abstracts/search?q=epigen%C3%A9tic" title=" epigenétic"> epigenétic</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20springs" title=" hot springs"> hot springs</a>, <a href="https://publications.waset.org/abstracts/search?q=" title=" "> </a>, <a href="https://publications.waset.org/abstracts/search?q=miopliocene" title=" miopliocene"> miopliocene</a>, <a href="https://publications.waset.org/abstracts/search?q=Hammam%20N%E2%80%99bails" title=" Hammam N’bails"> Hammam N’bails</a>, <a href="https://publications.waset.org/abstracts/search?q=algeria" title=" algeria "> algeria </a> </p> <a href="https://publications.waset.org/abstracts/9696/zn-sb-pb-au-mineralization-of-hammam-nbails-ne-of-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9696.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">348</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">38</span> The Relationship between the Epithermal Mineralization, Thermalism, and Basement Faults in the Region of Guelma: NE of Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20Merdas">B. Merdas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Guelma region constitutes a vast geothermal field whose local geothermal gradient is very high. Indeed, various thermal and thermo sources emerging in the region, including some at relatively high temperatures. In the mio Pliocene Hammam N'bails, basin emerges a hot spring that leaves develop a thick series of thermal travertine linked to it. Near the thermal emergences has settled a very special mineralization antimony and zinc and lead. The results of analyses of the thermal waters of the source of Hammam N'bails and the associated travertine, show abnormal values in Pb, Sb, Zn, As, and other metals, demonstrating the genetic link between those waters and mineralization. Hammam N'bails mineralizations by their mineral assembling represented and their association with the hot springs, are very similar to epithermal deposits with precious metals (gold and silver) like Senator mine in Turkey or ‘Carlin-type’ in Nevada (USA). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hot%20springs" title="hot springs">hot springs</a>, <a href="https://publications.waset.org/abstracts/search?q=mineralization%3B%20basement%20faults" title=" mineralization; basement faults"> mineralization; basement faults</a>, <a href="https://publications.waset.org/abstracts/search?q=Guelma" title=" Guelma"> Guelma</a>, <a href="https://publications.waset.org/abstracts/search?q=NE%20Algeria" title=" NE Algeria"> NE Algeria</a> </p> <a href="https://publications.waset.org/abstracts/33560/the-relationship-between-the-epithermal-mineralization-thermalism-and-basement-faults-in-the-region-of-guelma-ne-of-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33560.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">430</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">37</span> Design and Study of a Hybrid Micro-CSP/Biomass Boiler System for Water and Space Heating in Traditional Hammam</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Said%20Lamghari">Said Lamghari</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelkader%20Outzourhit"> Abdelkader Outzourhit</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Hamdi"> Hassan Hamdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Krarouch"> Mohamed Krarouch</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Ait%20Nouh"> Fatima Ait Nouh</a>, <a href="https://publications.waset.org/abstracts/search?q=Mickael%20Benhaim"> Mickael Benhaim</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehdi%20Khaldoun"> Mehdi Khaldoun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Traditional Hammams are big consumers of water and wood-energy. Any approach to reduce this consumption will contribute to the preservation of these two resources that are more and more stressed in Morocco. In the InnoTherm/InnoBiomass 2014 project HYBRIDBATH, funded by the Research Institute for Solar Energy and New Energy (IRESEN), we will use a hybrid system consisting of a micro-CSP system and a biomass boiler for water and space heating of a Hammam. This will overcome the problem of intermittency of solar energy, and will ensure continuous supply of hot water and heat. We propose to use local agricultural residues (olive pomace, shells of walnuts, almonds, Argan ...). Underfloor heating using either copper or PEX tubing will perform the space heating. This work focuses on the description of the system and the activities carried out so far: The installation of the system, the principle operation of the system and some preliminary test results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biomass%20boiler" title="biomass boiler">biomass boiler</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20water" title=" hot water"> hot water</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20systems" title=" hybrid systems"> hybrid systems</a>, <a href="https://publications.waset.org/abstracts/search?q=micro-CSP" title=" micro-CSP"> micro-CSP</a>, <a href="https://publications.waset.org/abstracts/search?q=parabolic%20sensor" title=" parabolic sensor"> parabolic sensor</a>, <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=solar%20fraction" title=" solar fraction"> solar fraction</a>, <a href="https://publications.waset.org/abstracts/search?q=traditional%20hammam" title=" traditional hammam"> traditional hammam</a>, <a href="https://publications.waset.org/abstracts/search?q=underfloor%20heating" title=" underfloor heating"> underfloor heating</a> </p> <a href="https://publications.waset.org/abstracts/63875/design-and-study-of-a-hybrid-micro-cspbiomass-boiler-system-for-water-and-space-heating-in-traditional-hammam" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63875.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">312</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Fluid Inclusions Analysis of Fluorite from the Hammam Jedidi District, North-Eastern Tunisia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Miladi%20Yasmine">Miladi Yasmine</a>, <a href="https://publications.waset.org/abstracts/search?q=Bouhlel%20Salah"> Bouhlel Salah</a>, <a href="https://publications.waset.org/abstracts/search?q=Garnit%20Hechmi"> Garnit Hechmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hydrothermal vein-type deposits of the Hammam Jedidi F-Ba(Pb-Zn-Cu) are hosted in Lower Jurassic, Cretaceous and Tertiary series, and located near a very important structural lineament (NE-SW) corresponding to the Hammam Jedidi Fault in the Tunisian Dorsale. The circulation of the ore forming fluid is triggered by a regional tectonic compressive phase which occurred during the miocène time. Mineralization occurs as stratabound and vein-type orebodies adjacent to the Triassic salt diapirs and within fault in Jurassic limestone. Fluid inclusions data show that two distinct fluids were involved in the mineralisation deposition: a warmer saline fluid (180°C, 20 wt % NaCl equivalent) and cooler less saline fluid (126°C, 5wt%NaCl equivalent). The contrasting salinities and halogen ratios suggest that this two fluid derived from one of the brine originated after the dissolution of halite as suggested by its high salinity. The other end member, as indicated by the low Cl/Br ratios, acquired its low salinity by dilution of Br enriched evaporated seawater. These results are compatible with Mississippi-Valley- type mineralization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jebel%20Oust" title="Jebel Oust">Jebel Oust</a>, <a href="https://publications.waset.org/abstracts/search?q=fluid%20inclusions" title=" fluid inclusions"> fluid inclusions</a>, <a href="https://publications.waset.org/abstracts/search?q=North%20Eastern%20Tunisia" title=" North Eastern Tunisia"> North Eastern Tunisia</a>, <a href="https://publications.waset.org/abstracts/search?q=mineralization" title=" mineralization"> mineralization</a> </p> <a href="https://publications.waset.org/abstracts/65896/fluid-inclusions-analysis-of-fluorite-from-the-hammam-jedidi-district-north-eastern-tunisia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65896.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">341</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">35</span> The Nature of Mineralizing Fluids in the Hammam Zriba Deposit (F-Ba-Sr-Pb-Zn) in North-eastern Tunisia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Miladi%20Yasmine">Miladi Yasmine</a>, <a href="https://publications.waset.org/abstracts/search?q=Bouhlel%20Salah"> Bouhlel Salah</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Banks"> David Banks</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Hammam Zriba (F-Ba-Sr-Pb-Zn) ore deposits of the Zaghouan district are located in northeast Tunisia, 60 Km south of Tunis. The host rocks belong to the Ressas Formation (Tithonian age) and lower Cretaceous layers. Mineralization occurs as stratiform replacement heaps and lenses. The mineral assemblage is composed of fluorite, barite, sphalerite, and galena. Primary fluid inclusions in sphalerite have homogenization temperatures ranging from 83 to 140°C, final melting temperature range from −18 to −7.0, corresponding to salinities of 5 to 21 wt % NaCl equivalent. Fluid inclusions in fluorite homogenize to the liquid phase between 132 and 178°C. Final ice melting temperatures range from −25 to −6.8 °C, corresponding to salinities between 17 and 24 wt% NaCl Equivalent. The LA-ICP-MS analyses of the fluid inclusions in fluorite show that these fluids are dominated by Na>Ca>K>Mg, with the concentration of Fe being equivalent to that of Mg. Microthermometric analyses of the fluid inclusions observed in fluorite and sphalerite show that two distinct fluids were involved in the mineralization deposition: a warmer saline fluid (132-178°C, 17-24 wt % NaCl equivalent) and cooler saline fluid (83°C-140, 5-21 wt %NaCl equivalent). The ore fluid result from highly saline and Na-Ca dominated with lower Mg concentrations come from the leaching of the dolomitic host rocks by the fluids. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hammam%20Zriba" title="Hammam Zriba ">Hammam Zriba </a>, <a href="https://publications.waset.org/abstracts/search?q=fluid%20inclusions" title=" fluid inclusions"> fluid inclusions</a>, <a href="https://publications.waset.org/abstracts/search?q=LA-ICP-MS" title=" LA-ICP-MS"> LA-ICP-MS</a>, <a href="https://publications.waset.org/abstracts/search?q=Zaghouan%20district" title=" Zaghouan district"> Zaghouan district</a> </p> <a href="https://publications.waset.org/abstracts/149849/the-nature-of-mineralizing-fluids-in-the-hammam-zriba-deposit-f-ba-sr-pb-zn-in-north-eastern-tunisia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149849.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">103</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">34</span> Analysis and Prediction of the Behavior of the Landslide at Ain El Hammam, Algeria Based on the Second Order Work Criterion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zerarka%20Hizia">Zerarka Hizia</a>, <a href="https://publications.waset.org/abstracts/search?q=Akchiche%20Mustapha"> Akchiche Mustapha</a>, <a href="https://publications.waset.org/abstracts/search?q=Prunier%20Florent"> Prunier Florent</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The landslide of Ain El Hammam (AEH) is characterized by a complex geology and a high hydrogeology hazard. AEH's perpetual reactivation compels us to look closely at its triggers and to better understand the mechanisms of its evolution in mass and in depth. This study builds a numerical model to simulate the influencing factors such as precipitation, non-saturation, and pore pressure fluctuations, using Plaxis software. For a finer analysis of instabilities, we use Hill's criterion, based on the sign of the second order work, which is the most appropriate material stability criterion for non-associated elastoplastic materials. The results of this type of calculation allow us, in theory, to predict the shape and position of the slip surface(s) which are liable to ground movements of the slope, before reaching the rupture given by the plastic limit of Mohr Coulomb. To validate the numerical model, an analysis of inclinometer measures is performed to confirm the direction of movement and kinematic of the sliding mechanism of AEH’s slope. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=landslide" title="landslide">landslide</a>, <a href="https://publications.waset.org/abstracts/search?q=second%20order%20work" title=" second order work"> second order work</a>, <a href="https://publications.waset.org/abstracts/search?q=precipitation" title=" precipitation"> precipitation</a>, <a href="https://publications.waset.org/abstracts/search?q=inclinometers" title=" inclinometers"> inclinometers</a> </p> <a href="https://publications.waset.org/abstracts/84706/analysis-and-prediction-of-the-behavior-of-the-landslide-at-ain-el-hammam-algeria-based-on-the-second-order-work-criterion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/84706.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">178</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">33</span> Nurses' Knowledge and Attitudes toward the Use of Physical Restraints</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fatema%20Salman">Fatema Salman</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Hammam"> Ridha Hammam</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Khairallah"> Fatima Khairallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatima%20Aradi"> Fatima Aradi</a>, <a href="https://publications.waset.org/abstracts/search?q=Nafeesa%20Abdulla"> Nafeesa Abdulla</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Alsafar"> Mohammed Alsafar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: This study aims at measuring the extent of nurses’ knowledge and attitudes toward the use of physical restraints in different hospital wards at Salmaniya Medical Complex (SMC). Background: The habitual use of physical restraint is a widespread practice among nurses working in the clinical settings. Restraints inflict many deleterious consequences on patients physically and psychologically which in turn increases their morbidity and mortality risk and jeopardizes care quality. Nurses’ knowledge and attitudes toward physical restraints are crucial determinants of the persistence of this practice. Literature review: the evidence of lack of knowledge among nurses regarding the use of physical restraints is overwhelming in various clinical settings, especially in two main areas which are the negative consequences and the available alternatives to physical restraints. Studies explored nurses’ attitudes toward physical restraints yielded inconsistent findings. Equally comparable, some studies found that nurses hold positive attitudes toward the use of physical restraints while some others reported just the opposite. Methods: Self-administered knowledge and attitudes scales to 106 nurses working in the SMC. Findings: nurses hold the moderate level of knowledge about restraints (M=58%) with weak negative attitudes (M = -20%) toward using it. Significant moderately-strong negative correlation (r= -0.57, r2= 0.32, p= 0.000) was uncovered between nurses knowledge and their attitudes which provided an empirical explanation of this phenomenon (use of physical restraints). Recommendations: Induction of awareness program that especially focuses on the negative consequences and encourages the use of alternatives is an evident need. This effort necessarily should be adjoined with policy and procedure adjustments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=attitudes" title="attitudes">attitudes</a>, <a href="https://publications.waset.org/abstracts/search?q=knowledge" title=" knowledge"> knowledge</a>, <a href="https://publications.waset.org/abstracts/search?q=nurses" title=" nurses"> nurses</a>, <a href="https://publications.waset.org/abstracts/search?q=restraints" title=" restraints"> restraints</a> </p> <a href="https://publications.waset.org/abstracts/57820/nurses-knowledge-and-attitudes-toward-the-use-of-physical-restraints" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57820.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">32</span> Perceived Structural Empowerment and Work Commitment among Intensive Care nurses in SMC</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Abdulla%20Al%20Hammam">Ridha Abdulla Al Hammam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Purpose: to measure the extent of perceived structural empowerment and work commitment the intensive care unit in SMC have in their work place. Background: nurses’ access to power structures (information, recourses, opportunity, and support) directly influences their productivity, retention, and job satisfaction. Exploring nurses’ level and sources of work commitment (affective, normative, and continuance) is very essential to guide nursing leaders making decisions to improve work environment to facilitate effective nursing care. Both concepts (Structural Empowerment and Work Commitment) were never investigated in our critical care unit. Methods: a sample of 50 nurses attained from the Intensive Care Unit (Adult). Conditions for Workplace Effectiveness Questionnaire and Three-Component Model Employee Commitment Survey were used to measure the two concepts respectively. The study is quantitative, descriptive, and correlational in design. Results: the participants reported moderate structural empowerment provided by their work place (M=15 out of 20). The sample perceived high access to opportunity mainly through gaining more skills (M=4.45 out of 5) where the rest power structures were perceived with moderate accessibility. The participants’ affective commitment (M=5.6 out of 7) to work in the ICU overweighed their normative and continuance commitment (M=5.1, M=4.9 out of 7) implying a stronger emotional connection with their unit. Strong positive and significant correlations were observed between the participants’ structural empowerment scores and all work commitment sources. Conclusion: these results provided an insight on aspects of work environment that need to be fostered and improved in our intensive care unit which have a direct linkage to nurses’ work commitment and potentially to their quality of care they provide. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=structural%20empowerment" title="structural empowerment">structural empowerment</a>, <a href="https://publications.waset.org/abstracts/search?q=commitment" title=" commitment"> commitment</a>, <a href="https://publications.waset.org/abstracts/search?q=intensive%20care" title=" intensive care"> intensive care</a>, <a href="https://publications.waset.org/abstracts/search?q=nurses" title=" nurses"> nurses</a> </p> <a href="https://publications.waset.org/abstracts/37451/perceived-structural-empowerment-and-work-commitment-among-intensive-care-nurses-in-smc" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37451.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">285</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">31</span> Mathematical Model to Quantify the Phenomenon of Democracy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mechlouch%20Ridha%20Fethi">Mechlouch Ridha Fethi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a recent mathematical model in political sciences concerning democracy. The model is represented by a logarithmic equation linking the Relative Index of Democracy (RID) to Participation Ratio (PR). Firstly the meanings of the different parameters of the model were presented; and the variation curve of the RID according to PR with different critical areas was discussed. Secondly, the model was applied to a virtual group where we show that the model can be applied depending on the gender. Thirdly, it was observed that the model can be extended to different language models of democracy and that little use to assess the state of democracy for some International organizations like UNO. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=democracy" title="democracy">democracy</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematic" title=" mathematic"> mathematic</a>, <a href="https://publications.waset.org/abstracts/search?q=modelization" title=" modelization"> modelization</a>, <a href="https://publications.waset.org/abstracts/search?q=quantification" title=" quantification"> quantification</a> </p> <a href="https://publications.waset.org/abstracts/61269/mathematical-model-to-quantify-the-phenomenon-of-democracy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61269.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">368</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">30</span> Impact Of Anthropogenic Pressures On The Water Quality Of Hammams In The Municipality Of Dar Bouazza, Morocco</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nihad%20Chakri">Nihad Chakri</a>, <a href="https://publications.waset.org/abstracts/search?q=Btissam%20El%20Amrani"> Btissam El Amrani</a>, <a href="https://publications.waset.org/abstracts/search?q=Faouzi%20Berrada"> Faouzi Berrada</a>, <a href="https://publications.waset.org/abstracts/search?q=Halima%20Jounaid"> Halima Jounaid</a>, <a href="https://publications.waset.org/abstracts/search?q=Fouad%20Amraoui"> Fouad Amraoui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Public baths or hammams play an essential role in the Moroccan urban and peri-urban fabric, constituting part of the cultural heritage. Urbanization in Morocco has led to a significant increase in the number of these traditional hammams: between 6,000 and 15,000 units (to be updated) operate with a traditional heating system. Numerous studies on energy consumption indicate that a hammam consumes between 60 and 120m3 of water and one to two tons of wood per day. On average, one ton of wood costs 650 Moroccan dirhams (approximately 60 Euros), resulting in a daily fuel cost of around 1300 Moroccan dirhams (about 120 Euros). These high consumptions result in significant environmental nuisances generated by: Wastewater: in the case of hammams located on the outskirts of Casablanca, such as our study area, the Municipality of Dar Bouazza, most of these waters are directly discharged into the receiving environment without prior treatment because they are not connected to the sanitation network. Emissions of black smoke and ashes produced by the often incomplete combustion of wood. Reducing the liquid and gas emissions generated by these hammams thus poses an environmental and sustainable development challenge that needs to be addressed. In this context, we initiated the Eco-hammam project with the objective of implementing innovative and locally adapted solutions to limit the negative impacts of hammams on the environment and reduce water and wood energy consumption. This involves treating and reusing wastewater through a compact system with heat recovery and using alternative energy sources to increase and enhance the energy efficiency of these traditional hammams. To achieve this, on-site surveys of hammams in the Dar Bouazza Municipality and the application of statistical approaches to the results of the physico-chemical and bacteriological characterization of incoming and outgoing water from these units were conducted. This allowed us to establish an environmental diagnosis of these entities. In conclusion, the analysis of well water used by Dar Bouazza's hammams revealed the presence of certain parameters that could be hazardous to public health, such as total germs, total coliforms, sulfite-reducing spores, chromium, nickel, and nitrates. Therefore, this work primarily focuses on prospecting upstream of our study area to verify if other sources of pollution influence the quality of well water. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=public%20baths" title="public baths">public baths</a>, <a href="https://publications.waset.org/abstracts/search?q=hammams" title=" hammams"> hammams</a>, <a href="https://publications.waset.org/abstracts/search?q=cultural%20heritage" title=" cultural heritage"> cultural heritage</a>, <a href="https://publications.waset.org/abstracts/search?q=urbanization" title=" urbanization"> urbanization</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20consumption" title=" water consumption"> water consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=wood%20consumption" title=" wood consumption"> wood consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20nuisances" title=" environmental nuisances"> environmental nuisances</a>, <a href="https://publications.waset.org/abstracts/search?q=wastewater" title=" wastewater"> wastewater</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20challenge" title=" environmental challenge"> environmental challenge</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title=" sustainable development"> sustainable development</a>, <a href="https://publications.waset.org/abstracts/search?q=Eco-hammam%20project" title=" Eco-hammam project"> Eco-hammam project</a>, <a href="https://publications.waset.org/abstracts/search?q=innovative%20solutions" title=" innovative solutions"> innovative solutions</a>, <a href="https://publications.waset.org/abstracts/search?q=local%20adaptation" title=" local adaptation"> local adaptation</a>, <a href="https://publications.waset.org/abstracts/search?q=negative%20impacts" title=" negative impacts"> negative impacts</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20conservation" title=" water conservation"> water conservation</a>, <a href="https://publications.waset.org/abstracts/search?q=wastewater%20treatment" title=" wastewater treatment"> wastewater treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20recovery" title=" heat recovery"> heat recovery</a>, <a href="https://publications.waset.org/abstracts/search?q=alternative%20energy%20sources" title=" alternative energy sources"> alternative energy sources</a>, <a href="https://publications.waset.org/abstracts/search?q=on-site%20surveys" title=" on-site surveys"> on-site surveys</a>, <a href="https://publications.waset.org/abstracts/search?q=Dar%20Bouazza%20Municipality" title=" Dar Bouazza Municipality"> Dar Bouazza Municipality</a>, <a href="https://publications.waset.org/abstracts/search?q=statistical%20approaches" title=" statistical approaches"> statistical approaches</a>, <a href="https://publications.waset.org/abstracts/search?q=physico-chemical%20characterization" title=" physico-chemical characterization"> physico-chemical characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=bacteriological%20characterization" title=" bacteriological characterization"> bacteriological characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20diagnosis" title=" environmental diagnosis"> environmental diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=well%20water%20analysis" title=" well water analysis"> well water analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20health" title=" public health"> public health</a>, <a href="https://publications.waset.org/abstracts/search?q=pollution%20sources" title=" pollution sources"> pollution sources</a>, <a href="https://publications.waset.org/abstracts/search?q=well%20water%20quality" title=" well water quality"> well water quality</a> </p> <a href="https://publications.waset.org/abstracts/176794/impact-of-anthropogenic-pressures-on-the-water-quality-of-hammams-in-the-municipality-of-dar-bouazza-morocco" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176794.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">70</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">29</span> Modeling and Simulation of Practical Metamaterial Structures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Salhi">Ridha Salhi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mondher%20Labidi"> Mondher Labidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Fethi%20Choubani"> Fethi Choubani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Metamaterials have attracted much attention in recent years because of their electromagnetic exquisite proprieties. We will present, in this paper, the modeling of three metamaterial structures by equivalent circuit model. We begin by modeling the SRR (Split Ring Resonator), then we model the HIS (High Impedance Surfaces), and finally, we present the model of the CPW (Coplanar Wave Guide). In order to validate models, we compare the results obtained by an equivalent circuit models with numerical simulation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metamaterials" title="metamaterials">metamaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=SRR" title=" SRR"> SRR</a>, <a href="https://publications.waset.org/abstracts/search?q=HIS" title=" HIS"> HIS</a>, <a href="https://publications.waset.org/abstracts/search?q=CPW" title=" CPW"> CPW</a>, <a href="https://publications.waset.org/abstracts/search?q=IDC" title=" IDC"> IDC</a> </p> <a href="https://publications.waset.org/abstracts/32369/modeling-and-simulation-of-practical-metamaterial-structures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32369.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">429</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">28</span> Numerical Prediction of Wall Eroded Area by Cavitation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Zgolli">Ridha Zgolli</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20%20Belhaj"> Ahmed Belhaj</a>, <a href="https://publications.waset.org/abstracts/search?q=Maroua%20Ennouri"> Maroua Ennouri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study presents a new method to predict cavitation area that may be eroded. It is based on the post-treatment of URANS simulations in cavitant flows. The most RANS calculations with incompressible consideration are based on cavitation model using mixture fluid with density (ρm) calculated as a function of liquid density (ρliq), vapour or gas density (ρvap) and vapour or gas volume fraction α (ρm = αρvap + (1-α) ρliq). The calculations are performed on hydrofoil geometries and compared with experimental works concerning flows characteristics (size of pocket, pressure, velocity). We present here the used cavitation model and the approach followed to evaluate the value of α fixing the shape of pocket around wall before collapsing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flows" title="flows">flows</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=cavitation" title=" cavitation"> cavitation</a>, <a href="https://publications.waset.org/abstracts/search?q=erosion" title=" erosion"> erosion</a> </p> <a href="https://publications.waset.org/abstracts/67687/numerical-prediction-of-wall-eroded-area-by-cavitation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67687.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">338</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">27</span> Comparative Study of Scheduling Algorithms for LTE Networks </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samia%20Dardouri">Samia Dardouri</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Bouallegue"> Ridha Bouallegue</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Scheduling is the process of dynamically allocating physical resources to User Equipment (UE) based on scheduling algorithms implemented at the LTE base station. Various algorithms have been proposed by network researchers as the implementation of scheduling algorithm which represents an open issue in Long Term Evolution (LTE) standard. This paper makes an attempt to study and compare the performance of PF, MLWDF and EXP/PF scheduling algorithms. The evaluation is considered for a single cell with interference scenario for different flows such as Best effort, Video and VoIP in a pedestrian and vehicular environment using the LTE-Sim network simulator. The comparative study is conducted in terms of system throughput, fairness index, delay, packet loss ratio (PLR) and total cell spectral efficiency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=LTE" title="LTE">LTE</a>, <a href="https://publications.waset.org/abstracts/search?q=multimedia%20flows" title=" multimedia flows"> multimedia flows</a>, <a href="https://publications.waset.org/abstracts/search?q=scheduling%20algorithms" title=" scheduling algorithms"> scheduling algorithms</a>, <a href="https://publications.waset.org/abstracts/search?q=mobile%20computing" title=" mobile computing"> mobile computing</a> </p> <a href="https://publications.waset.org/abstracts/8094/comparative-study-of-scheduling-algorithms-for-lte-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8094.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">26</span> Numerical Modeling the Cavitating Flow in Injection Nozzle Holes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Zgolli">Ridha Zgolli</a>, <a href="https://publications.waset.org/abstracts/search?q=Hatem%20Kanfoudi"> Hatem Kanfoudi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cavitating flows inside a diesel injection nozzle hole were simulated using a mixture model. A 2D numerical model is proposed in this paper to simulate steady cavitating flows. The Reynolds-averaged Navier-Stokes equations are solved for the liquid and vapor mixture, which is considered as a single fluid with variable density which is expressed as function of the vapor volume fraction. The closure of this variable is provided by the transport equation with a source term TEM. The processes of evaporation and condensation are governed by changes in pressure within the flow. The source term is implanted in the CFD code ANSYS CFX. The influence of numerical and physical parameters is presented in details. The numerical simulations are in good agreement with the experimental data for steady flow. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cavitation" title="cavitation">cavitation</a>, <a href="https://publications.waset.org/abstracts/search?q=injection%20nozzle" title=" injection nozzle"> injection nozzle</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20simulation" title=" numerical simulation"> numerical simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=k%E2%80%93%CF%89" title=" k–ω"> k–ω</a> </p> <a href="https://publications.waset.org/abstracts/8089/numerical-modeling-the-cavitating-flow-in-injection-nozzle-holes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8089.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">401</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">25</span> A Novel Multi-Block Selective Mapping Scheme for PAPR Reduction in FBMC/OQAM Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Laabidi%20Mounira">Laabidi Mounira</a>, <a href="https://publications.waset.org/abstracts/search?q=Zayani%20Rafk"> Zayani Rafk</a>, <a href="https://publications.waset.org/abstracts/search?q=Bouallegue%20Ridha"> Bouallegue Ridha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) is presently known as a sustainable alternative to conventional Orthogonal Frequency Division Multiplexing (OFDM) for signal transmission over multi-path fading channels. Like all multicarrier systems, FBMC/OQAM suffers from high Peak to Average Power Ratio (PAPR). Due to the symbol overlap inherent in the FBMC/OQAM system, the direct application of conventional OFDM PAPR reduction scheme is far from being effective. This paper suggests a novel scheme termed Multi-Blocks Selective Mapping (MB-SLM) whose simulation results show that its performance in terms of PAPR reduction is almost identical to that of OFDM system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FBMC%2FOQAM" title="FBMC/OQAM">FBMC/OQAM</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-blocks" title=" multi-blocks"> multi-blocks</a>, <a href="https://publications.waset.org/abstracts/search?q=OFDM" title=" OFDM"> OFDM</a>, <a href="https://publications.waset.org/abstracts/search?q=PAPR" title=" PAPR"> PAPR</a>, <a href="https://publications.waset.org/abstracts/search?q=SLM" title=" SLM "> SLM </a> </p> <a href="https://publications.waset.org/abstracts/25374/a-novel-multi-block-selective-mapping-scheme-for-papr-reduction-in-fbmcoqam-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25374.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">463</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">24</span> Modelling the Anaerobic Digestion of Esparto Paper Industry Wastewater Effluent in a Batch Digester Using IWA Anaerobic Digestion Model No. 1 (ADM1)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Boubaker%20Fezzani">Boubaker Fezzani</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Ben%20Cheikh"> Ridha Ben Cheikh</a>, <a href="https://publications.waset.org/abstracts/search?q=Tarek%20Rouissi"> Tarek Rouissi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this work the original ADM1, implemented in the simulation software package MATLAB/Simulink, was modified and adapted and applied to reproduce the experimental results of the mesophilic anaerobic digestion of Esperto paper industry wastewater in a batch digester. The data set from lab-scale experiment runs were used to calibrate and validate the model. The simulations’ results indicated that the modified ADM1 was able to predict reasonably well the steady state results of gas flows, methane and carbon dioxide contents, pH and total volatile fatty acids (TVFA) observed with all influents concentrations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anaerobic%20digestion" title="anaerobic digestion">anaerobic digestion</a>, <a href="https://publications.waset.org/abstracts/search?q=mathematical%20modelling" title=" mathematical modelling"> mathematical modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=Simulation" title=" Simulation"> Simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=ADM1" title=" ADM1"> ADM1</a>, <a href="https://publications.waset.org/abstracts/search?q=batch%20digester" title=" batch digester"> batch digester</a>, <a href="https://publications.waset.org/abstracts/search?q=esparto%20%20paper%20industry%20effluent" title=" esparto paper industry effluent"> esparto paper industry effluent</a>, <a href="https://publications.waset.org/abstracts/search?q=mesophilic%20temperature" title=" mesophilic temperature"> mesophilic temperature</a> </p> <a href="https://publications.waset.org/abstracts/37483/modelling-the-anaerobic-digestion-of-esparto-paper-industry-wastewater-effluent-in-a-batch-digester-using-iwa-anaerobic-digestion-model-no-1-adm1" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37483.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">23</span> Causality Channels between Corruption and Democracy: A Threshold Non-Linear Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khalid%20Sekkat">Khalid Sekkat</a>, <a href="https://publications.waset.org/abstracts/search?q=Fredj%20Fhima"> Fredj Fhima</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Nouira"> Ridha Nouira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper focuses on three main limitations of the literature regarding the impact of corruption on democracy. These limitations relate to the distinction between causality and correlation, the components of democracy underlying the impact and the shape of the relationship between corruption and democracy. The study uses recent developments in panel data causality econometrics, breaks democracy down into different components, and examines the types of the relationship. The results show that Control of Corruption leads to a higher quality of democracy. Regarding the estimated coefficients of the components of democracy, they are significant at the 1% level, and their signs and levels are in accordance with expectations except in a few cases. Overall, the results add to the literature in three respects: i). corruption has a causal effect on democracy and, hence, single equation estimation may pose a problem, ii) the assumption of the linearity of the relationships between control of corruption and democracy is also possibly problematic, and iii) the channels of transmission of the effects of corruption on democracy can be diverse. Disentangling them is useful from a policy perspective. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corruption" title="corruption">corruption</a>, <a href="https://publications.waset.org/abstracts/search?q=governance" title=" governance"> governance</a>, <a href="https://publications.waset.org/abstracts/search?q=causality" title=" causality"> causality</a>, <a href="https://publications.waset.org/abstracts/search?q=threshold%20models" title=" threshold models"> threshold models</a> </p> <a href="https://publications.waset.org/abstracts/186015/causality-channels-between-corruption-and-democracy-a-threshold-non-linear-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186015.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">46</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">22</span> Mathematical Modeling of Carotenoids and Polyphenols Content of Faba Beans (Vicia faba L.) during Microwave Treatments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Fethi%20Mechlouch">Ridha Fethi Mechlouch</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahlem%20Ayadi"> Ahlem Ayadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ammar%20Ben%20Brahim"> Ammar Ben Brahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Given the importance of the preservation of polyphenols and carotenoids during thermal processing, we attempted in this study to investigate the variation of these two parameters in faba beans during microwave treatment using different power densities (1; 2; and 3W/g), then to perform a mathematical modeling by using non-linear regression analysis to evaluate the models constants. The variation of the carotenoids and polyphenols ratio of faba beans and the models are tested to validate the experimental results. Exponential models were found to be suitable to describe the variation of caratenoid ratio (R²= 0.945, 0.927 and 0.946) for power densities (1; 2; and 3W/g) respectively, and polyphenol ratio (R²= 0.931, 0.989 and 0.982) for power densities (1; 2; and 3W/g) respectively. The effect of microwave power density Pd(W/g) on the coefficient k of models were also investigated. The coefficient is highly correlated (R² = 1) and can be expressed as a polynomial function. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microwave%20treatment" title="microwave treatment">microwave treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20density" title=" power density"> power density</a>, <a href="https://publications.waset.org/abstracts/search?q=carotenoid" title=" carotenoid"> carotenoid</a>, <a href="https://publications.waset.org/abstracts/search?q=polyphenol" title=" polyphenol"> polyphenol</a>, <a href="https://publications.waset.org/abstracts/search?q=modeling" title=" modeling"> modeling</a> </p> <a href="https://publications.waset.org/abstracts/42759/mathematical-modeling-of-carotenoids-and-polyphenols-content-of-faba-beans-vicia-faba-l-during-microwave-treatments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/42759.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">259</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Room Level Indoor Localization Using Relevant Channel Impulse Response Parameters</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raida%20Zouari">Raida Zouari</a>, <a href="https://publications.waset.org/abstracts/search?q=Iness%20Ahriz"> Iness Ahriz</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafik%20Zayani"> Rafik Zayani</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Dziri"> Ali Dziri</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Bouallegue"> Ridha Bouallegue</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper proposes a room level indoor localization algorithm based on the use Multi-Layer Neural Network (MLNN) classifiers and one versus one strategy. Seven parameters of the Channel Impulse Response (CIR) were used and Gram-Shmidt Orthogonalization was performed to study the relevance of the extracted parameters. Simulation results show that when relevant CIR parameters are used as position fingerprint and when optimal MLNN architecture is selected good room level localization score can be achieved. The current study showed also that some of the CIR parameters are not correlated to the location and can decrease the localization performance of the system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mobile%20indoor%20localization" title="mobile indoor localization">mobile indoor localization</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-layer%20neural%20network%20%28MLNN%29" title=" multi-layer neural network (MLNN)"> multi-layer neural network (MLNN)</a>, <a href="https://publications.waset.org/abstracts/search?q=channel%20impulse%20response%20%28CIR%29" title=" channel impulse response (CIR)"> channel impulse response (CIR)</a>, <a href="https://publications.waset.org/abstracts/search?q=Gram-Shmidt%20orthogonalization" title=" Gram-Shmidt orthogonalization"> Gram-Shmidt orthogonalization</a> </p> <a href="https://publications.waset.org/abstracts/40068/room-level-indoor-localization-using-relevant-channel-impulse-response-parameters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40068.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">357</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Improved Active Constellation Extension for the PAPR Reduction of FBMC-OQAM Signals</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mounira%20Laabidi">Mounira Laabidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafik%20Zayani"> Rafik Zayani</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Bouallegue"> Ridha Bouallegue</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Roviras"> Daniel Roviras</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Filter Bank multicarrier with Offset Quadrature Amplitude Modulation (FBMC-OQAM) has been introduced to overcome the poor spectral characteristics and the waste in both bandwidth and energy caused by the use of the cyclic prefix. However, the FBMC-OQAM signals suffer from the high Peak to Average Power Ratio (PAPR) problem. Due to the overlapping structure of the FBMC-OQAM signals, directly applying the PAPR reduction schemes conceived for the OFDM one turns out to be ineffective. In this paper, we address the problem of PAPR reduction for FBMC-OQAM systems by suggesting a new scheme based on an improved version of Active Constellation Extension scheme (ACE) of OFDM. The proposed scheme, named Rolling Window ACE, takes into consideration the overlapping naturally emanating from the FBMC-OQAM signals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ACE" title="ACE">ACE</a>, <a href="https://publications.waset.org/abstracts/search?q=FBMC" title=" FBMC"> FBMC</a>, <a href="https://publications.waset.org/abstracts/search?q=OQAM" title=" OQAM"> OQAM</a>, <a href="https://publications.waset.org/abstracts/search?q=OFDM" title=" OFDM"> OFDM</a>, <a href="https://publications.waset.org/abstracts/search?q=PAPR" title=" PAPR"> PAPR</a>, <a href="https://publications.waset.org/abstracts/search?q=rolling-window" title=" rolling-window"> rolling-window</a> </p> <a href="https://publications.waset.org/abstracts/25720/improved-active-constellation-extension-for-the-papr-reduction-of-fbmc-oqam-signals" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25720.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">545</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Antioxidant Activities, Chemical Components, Physicochemical, and Sensory Characteristics of Kecombrang Tea (Etlingera elatior)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rifda%20Naufalin">Rifda Naufalin</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurul%20Latifasari"> Nurul Latifasari</a>, <a href="https://publications.waset.org/abstracts/search?q=Siti%20Nuryanti"> Siti Nuryanti</a>, <a href="https://publications.waset.org/abstracts/search?q=Muna%20Ridha%20Hanifah"> Muna Ridha Hanifah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Kecombrang is a Zingiberaceae plant which has antioxidant properties. The high antioxidant content in kecombrang flowers has the potential to be processed as a functional beverage raw material so that it can be used as an ingredient in making herbal teas. The purpose of this study was to determine the chemical components, physicochemistry, antioxidant activity and sensory characteristics of kecombrang tea. The research methodology was carried out by using a completely randomized design with processing factors of kecombrang tea namely blanching and non-blanching, fermentation and non-fermentation, and the optimal time for drying kecombrang tea. The best treatment combination based on the effective index method is the treatment of the blanching process followed by drying at a temperature of 50ᵒC until the 2% moisture content can produce kecombrang tea with a total phenol content of 5.95 mg Tannic Acid Equivalent (TAE) / gram db, total flavonoid 3%, pH 4.5, and antioxidant activity 82.95%, red color, distinctive aroma of tea, fresh taste, and preferred by panelists. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=kecombrang%20tea" title="kecombrang tea">kecombrang tea</a>, <a href="https://publications.waset.org/abstracts/search?q=blanching" title=" blanching"> blanching</a>, <a href="https://publications.waset.org/abstracts/search?q=fermentation" title=" fermentation"> fermentation</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20phenol" title=" total phenol"> total phenol</a>, <a href="https://publications.waset.org/abstracts/search?q=and%20antioxidant%20activity" title=" and antioxidant activity"> and antioxidant activity</a> </p> <a href="https://publications.waset.org/abstracts/106909/antioxidant-activities-chemical-components-physicochemical-and-sensory-characteristics-of-kecombrang-tea-etlingera-elatior" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/106909.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">148</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Analytical Downlink Effective SINR Evaluation in LTE Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Marwane%20Ben%20Hcine">Marwane Ben Hcine</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Bouallegue"> Ridha Bouallegue</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this work is to provide an original analytical framework for downlink effective SINR evaluation in LTE networks. The classical single carrier SINR performance evaluation is extended to multi-carrier systems operating over frequency selective channels. Extension is achieved by expressing the link outage probability in terms of the statistics of the effective SINR. For effective SINR computation, the exponential effective SINR mapping (EESM) method is used on this work. Closed-form expression for the link outage probability is achieved assuming a log skew normal approximation for single carrier case. Then we rely on the lognormal approximation to express the exponential effective SINR distribution as a function of the mean and standard deviation of the SINR of a generic subcarrier. Achieved formulas is easily computable and can be obtained for a user equipment (UE) located at any distance from its serving eNodeB. Simulations show that the proposed framework provides results with accuracy within 0.5 dB. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=LTE" title="LTE">LTE</a>, <a href="https://publications.waset.org/abstracts/search?q=OFDMA" title=" OFDMA"> OFDMA</a>, <a href="https://publications.waset.org/abstracts/search?q=effective%20SINR" title=" effective SINR"> effective SINR</a>, <a href="https://publications.waset.org/abstracts/search?q=log%20skew%20normal%20approximation" title=" log skew normal approximation"> log skew normal approximation</a> </p> <a href="https://publications.waset.org/abstracts/21658/analytical-downlink-effective-sinr-evaluation-in-lte-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21658.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">17</span> Nutraceutical Potential of Mushroom Bioactive Metabolites and Their Food Functionality</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jackson%20Ishara">Jackson Ishara</a>, <a href="https://publications.waset.org/abstracts/search?q=Ariel%20Buzera"> Ariel Buzera</a>, <a href="https://publications.waset.org/abstracts/search?q=Gustave%20N.%20Mushagalusa"> Gustave N. Mushagalusa</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20R.%20A.%20Hammam"> Ahmed R. A. Hammam</a>, <a href="https://publications.waset.org/abstracts/search?q=Judith%20Munga"> Judith Munga</a>, <a href="https://publications.waset.org/abstracts/search?q=Paul%20Karanja"> Paul Karanja</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Kinyuru"> John Kinyuru</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Numerous mushroom bioactive metabolites, including polysaccharides, eritadenine, lignin, chitosan, mevinolin, and astrakurkurone have been studied in life-threatening conditions and diseases such as diabetes, cardiovascular, hypertension, cancer, DNA damage, hypercholesterolemia, and obesity attempting to identify natural therapies. These bioactive metabolites have shown potential as antiviral and immune system strengthener natural agents through diverse cellular and physiological pathways modulation with no toxicity evidence, widely available, and affordable. In light of the emerging literature, this paper compiles the most recent information describing the molecular mechanisms that underlie the nutraceutical potentials of these mushroom metabolites suggesting their effectiveness if combined with existing drug therapies. The findings raise hope that these mushroom bioactive metabolites may be utilized as natural therapies considering their therapeutic potential while anticipating further research designing clinical trials and developing new drug therapies while encouraging their consumption as a natural adjuvant in preventing and controlling life-threatening conditions and diseases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioactive%20metabolites" title="bioactive metabolites">bioactive metabolites</a>, <a href="https://publications.waset.org/abstracts/search?q=food%20functionality" title=" food functionality"> food functionality</a>, <a href="https://publications.waset.org/abstracts/search?q=health-threatening%20conditions" title=" health-threatening conditions"> health-threatening conditions</a>, <a href="https://publications.waset.org/abstracts/search?q=mushrooms" title=" mushrooms"> mushrooms</a>, <a href="https://publications.waset.org/abstracts/search?q=nutraceutical" title=" nutraceutical"> nutraceutical</a> </p> <a href="https://publications.waset.org/abstracts/151778/nutraceutical-potential-of-mushroom-bioactive-metabolites-and-their-food-functionality" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/151778.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">102</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Secure Distance Bounding Protocol on Ultra-WideBand Based Mapping Code</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jamel%20Miri">Jamel Miri</a>, <a href="https://publications.waset.org/abstracts/search?q=Bechir%20Nsiri"> Bechir Nsiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Bouallegue"> Ridha Bouallegue</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ultra WidBand-IR physical layer technology has seen a great development during the last decade which makes it a promising candidate for short range wireless communications, as they bring considerable benefits in terms of connectivity and mobility. However, like all wireless communication they suffer from vulnerabilities in terms of security because of the open nature of the radio channel. To face these attacks, distance bounding protocols are the most popular counter measures. In this paper, we presented a protocol based on distance bounding to thread the most popular attacks: Distance Fraud, Mafia Fraud and Terrorist fraud. In our work, we study the way to adapt the best secure distance bounding protocols to mapping code of ultra-wideband (TH-UWB) radios. Indeed, to ameliorate the performances of the protocol in terms of security communication in TH-UWB, we combine the modified protocol to ultra-wideband impulse radio technology (IR-UWB). The security and the different merits of the protocols are analyzed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=distance%20bounding" title="distance bounding">distance bounding</a>, <a href="https://publications.waset.org/abstracts/search?q=mapping%20code%20ultrawideband" title=" mapping code ultrawideband"> mapping code ultrawideband</a>, <a href="https://publications.waset.org/abstracts/search?q=terrorist%20fraud" title=" terrorist fraud"> terrorist fraud</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20layer%20technology" title=" physical layer technology"> physical layer technology</a> </p> <a href="https://publications.waset.org/abstracts/72772/secure-distance-bounding-protocol-on-ultra-wideband-based-mapping-code" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72772.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">299</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Rheological Characterization of Gels Based on Medicinal Plant Extracts Mixture (Zingibar Officinale and Cinnamomum Cassia)</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zahia%20Aliche">Zahia Aliche</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatiha%20Boudjema"> Fatiha Boudjema</a>, <a href="https://publications.waset.org/abstracts/search?q=Benyoucef%20Khelidj"> Benyoucef Khelidj</a>, <a href="https://publications.waset.org/abstracts/search?q=Selma%20Mettai"> Selma Mettai</a>, <a href="https://publications.waset.org/abstracts/search?q=Zohra%20Bouriahi"> Zohra Bouriahi</a>, <a href="https://publications.waset.org/abstracts/search?q=Saliha%20Mohammed%20Belkebir"> Saliha Mohammed Belkebir</a>, <a href="https://publications.waset.org/abstracts/search?q=Ridha%20Mazouz"> Ridha Mazouz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this work is the study of the viscoelastic behaviour formulating gels based plant extractions. The extracts of Zingibar officinale and Cinnamomum cassia were included in the gel at different concentrations of these plants in order to be applied in anti-inflammatory drugs. The yield of ethanolic extraction of Zingibar o. is 3.98% and for Cinnamomum c., essential oil by hydrodistillation is 1.67 %. The ethanolic extract of Zingibar.o, the essential oil of Cinnamomum c. and the mixture showed an anti-DPPH radicals’ activity, presented by EC50 values of 11.32, 13.48 and 14.39 mg/ml respectively. A gel based on different concentrations of these extracts was prepared. Microbiological tests conducted against Staphylococcus aureus and Escherichia colishowed moderate inhibition of Cinnamomum c. gel and less the gel based on Cinnamomum c./ Zingibar o. (20/80). The yeast Candida albicansis resistant to gels. The viscoelastic formulation property was carried out in dynamic and creep and modeled with the Kelvin-Voigt model. The influence of some parameters on the stability of the gel (time, temperature and applied stress) has been studied. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cinnamomum%20cassia" title="Cinnamomum cassia">Cinnamomum cassia</a>, <a href="https://publications.waset.org/abstracts/search?q=Zingibar%20officinale" title=" Zingibar officinale"> Zingibar officinale</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activity" title=" antioxidant activity"> antioxidant activity</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobien%20activity" title=" antimicrobien activity"> antimicrobien activity</a>, <a href="https://publications.waset.org/abstracts/search?q=gel" title=" gel"> gel</a>, <a href="https://publications.waset.org/abstracts/search?q=viscoelastic%20behaviour" title=" viscoelastic behaviour"> viscoelastic behaviour</a> </p> <a href="https://publications.waset.org/abstracts/168525/rheological-characterization-of-gels-based-on-medicinal-plant-extracts-mixture-zingibar-officinale-and-cinnamomum-cassia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168525.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">89</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">14</span> Study of Landslide Behavior with Topographic Monitoring and Numerical Modeling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=ZerarkaHizia">ZerarkaHizia</a>, <a href="https://publications.waset.org/abstracts/search?q=Akchiche%20Mustapha"> Akchiche Mustapha</a>, <a href="https://publications.waset.org/abstracts/search?q=Prunier%20Florent"> Prunier Florent</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Landslide of Ain El Hammam (AEH) has been an old slip since 1969; it was reactivated after an intense rainfall period in 2008 where it presents a complex shape and affects broad areas. The schist of AEH is more or less altered; the alteration is facilitated by the fracturing of the rock in its upper part, the presence of flowing water as well as physical and chemical mechanisms of desegregation in joint of altered schist. The factors following these instabilities are mostly related to the geological formation, the hydro-climatic conditions and the topography of the region. The city of AEH is located on the top of a steep slope at 50 km from the city of TiziOuzou (Algeria). AEH’s topographic monitoring of unstable slope allows analyzing the structure and the different deformation mechanism and the gradual change in the geometry, the direction of change of slip. It also allows us to delimit the area affected by the movement. This work aims to study the behavior of AEH landslide with topographic monitoring and to validate the results with numerical modeling of the slip site, when the hydraulic factors are identified as the most important factors for the reactivation of this landslide. With the help of the numerical code PLAXIS 2D and PlaxFlow, the precipitations and the steady state flow are modeled. To identify the mechanism of deformation and to predict the spread of the AEH landslide numerically, we used the equivalent deviatory strain, and these results were visualized by MATLAB software. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=equivalent%20deviatory%20strain" title="equivalent deviatory strain">equivalent deviatory strain</a>, <a href="https://publications.waset.org/abstracts/search?q=landslide" title=" landslide"> landslide</a>, <a href="https://publications.waset.org/abstracts/search?q=numerical%20modeling" title=" numerical modeling"> numerical modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=topographic%20monitoring" title=" topographic monitoring"> topographic monitoring</a> </p> <a href="https://publications.waset.org/abstracts/60456/study-of-landslide-behavior-with-topographic-monitoring-and-numerical-modeling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60456.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">292</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">13</span> Modelling and Optimization of Geothermal Energy in the Gulf of Suez</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amira%20Abdelhafez">Amira Abdelhafez</a>, <a href="https://publications.waset.org/abstracts/search?q=Rufus%20Brunt"> Rufus Brunt</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Geothermal energy in Egypt represents a significant untapped renewable resource that can reduce reliance on conventional power generation. Exploiting these geothermal resources depends on depth, temperature range, and geological characteristics. The intracontinental rift setting of the Gulf of Suez (GoS)-Red Sea rift is a favourable tectonic setting for convection-dominated geothermal plays. The geothermal gradient across the GoS ranges from 24.9 to 86.66 °C/km, with a heat flow of 31-127.2 mW/m². Surface expressions of convective heat loss emerge along the gulf flanks as hot springs (e.g., Hammam Faraun) accompanying deeper geothermal resources. These thermal anomalies are driven mainly by the local tectonic configuration. Characterizing the structural framework of major faults and their control on reservoir properties and subsurface hydrothermal fluid circulation is vital for geothermal applications in the gulf. The geothermal play systems of the GoS depend on structural and lithological properties that contribute to heat storage and vertical transport. Potential geothermal reservoirs include the Nubia sandstones, which, due to their thickness, continuity, and contact with hot basement rocks at a mean depth of 3 km, create an extensive reservoir for geothermal fluids. To develop these geothermal resources for energy production, defining the permeability anisotropy of the reservoir due to faults and facies variation is a crucial step in our study, particularly the evaluation of influence on thermal breakthrough and production rates. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=geothermal" title="geothermal">geothermal</a>, <a href="https://publications.waset.org/abstracts/search?q=October%20field" title=" October field"> October field</a>, <a href="https://publications.waset.org/abstracts/search?q=site%20specific%20study" title=" site specific study"> site specific study</a>, <a href="https://publications.waset.org/abstracts/search?q=reservoir%20modelling" title=" reservoir modelling"> reservoir modelling</a> </p> <a href="https://publications.waset.org/abstracts/193828/modelling-and-optimization-of-geothermal-energy-in-the-gulf-of-suez" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/193828.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">11</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">12</span> Evaluating Surface Water Quality Using WQI, Trend Analysis, and Cluster Classification in Kebir Rhumel Basin, Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lazhar%20Belkhiri">Lazhar Belkhiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Ammar%20Tiri"> Ammar Tiri</a>, <a href="https://publications.waset.org/abstracts/search?q=Lotfi%20Mouni"> Lotfi Mouni</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Elhadj%20Lakouas"> Fatma Elhadj Lakouas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study evaluates the surface water quality in the Kebir Rhumel Basin by analyzing hydrochemical parameters. To assess spatial and temporal variations in water quality, we applied the Water Quality Index (WQI), Mann-Kendall (MK) trend analysis, and hierarchical cluster analysis (HCA). Monthly measurements of eleven hydrochemical parameters were collected across eight stations from January 2016 to December 2020. Calcium and sulfate emerged as the dominant cation and anion, respectively. WQI analysis indicated a high incidence of poor water quality at stations Ain Smara (AS), Beni Haroune (BH), Grarem (GR), and Sidi Khalifa (SK), where 89.5%, 90.6%, 78.2%, and 62.7% of samples, respectively, fell into this category. The MK trend analysis revealed a significant upward trend in WQI at Oued Boumerzoug (ON) and SK stations, signaling temporal deterioration in these areas. HCA grouped the dataset into three clusters, covering approximately 22%, 30%, and 48% of the months, respectively. Within these clusters, specific stations exhibited elevated WQI values: GR and ON in the first cluster, OB and SK in the second, and AS, BH, El Milia (EM), and Hammam Grouz (HG) in the third. Furthermore, approximately 38%, 41%, and 38% of samples in clusters one, two, and three, respectively, were classified as having poor water quality. These findings provide essential insights for policymakers in formulating strategies to restore and manage surface water quality in the region. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=surface%20water%20quality" title="surface water quality">surface water quality</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20quality%20index%20%28WQI%29" title=" water quality index (WQI)"> water quality index (WQI)</a>, <a href="https://publications.waset.org/abstracts/search?q=Mann-Kendall%20Trend%20Analysis" title=" Mann-Kendall Trend Analysis"> Mann-Kendall Trend Analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=hierarchical%20cluster%20analysis%20%28HCA%29" title=" hierarchical cluster analysis (HCA)"> hierarchical cluster analysis (HCA)</a>, <a href="https://publications.waset.org/abstracts/search?q=spatial-temporal%20distribution" title=" spatial-temporal distribution"> spatial-temporal distribution</a>, <a href="https://publications.waset.org/abstracts/search?q=Kebir%20Rhumel%20Basin" title=" Kebir Rhumel Basin"> Kebir Rhumel Basin</a> </p> <a href="https://publications.waset.org/abstracts/193200/evaluating-surface-water-quality-using-wqi-trend-analysis-and-cluster-classification-in-kebir-rhumel-basin-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/193200.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">16</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">11</span> Thermal Analysis and Experimental Procedure of Integrated Phase Change Material in a Storage Tank</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chargui%20Ridha">Chargui Ridha</a>, <a href="https://publications.waset.org/abstracts/search?q=Agrebi%20Sameh"> Agrebi Sameh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The integration of phase change materials (PCM) for the storage of thermal energy during the period of sunshine before being released during the night is a complement of free energy to improve the system formed by a solar collector, tank storage, and a heat exchanger. This paper is dedicated to the design of a thermal storage tank based on a PCM-based heat exchanger. The work is divided into two parts: an experimental part using paraffin as PCM was carried out within the Laboratory of Thermal Processes of Borj Cedria in order to improve the performance of the system formed by the coupling of a flat solar collector and a thermal storage tank and to subsequently determine the influence of PCM on the whole system. This phase is based on the measurement instrumentation, namely, a differential scanning calorimeter (DSC) and the thermal analyzer (hot disk: HOT DISK) in order to determine the physical properties of the paraffin (PCM), which has been chosen. The second phase involves the detailed design of the PCM heat exchanger, which is incorporated into a thermal storage tank and coupled with a solar air collector installed at the Research and Technology Centre of Energy (CRTEn). A numerical part based on the TRANSYS and Fluent software, as well as the finite volume method, was carried out for the storage reservoir systems in order to determine the temperature distribution in each chosen system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=phase%20change%20materials" title="phase change materials">phase change materials</a>, <a href="https://publications.waset.org/abstracts/search?q=storage%20tank" title=" storage tank"> storage tank</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20exchanger" title=" heat exchanger"> heat exchanger</a>, <a href="https://publications.waset.org/abstracts/search?q=flat%20plate%20collector" title=" flat plate collector"> flat plate collector</a> </p> <a href="https://publications.waset.org/abstracts/157898/thermal-analysis-and-experimental-procedure-of-integrated-phase-change-material-in-a-storage-tank" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157898.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">94</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=Ridha%20Hammam&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Ridha%20Hammam&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a 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