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Ozkan</title> <meta name="description" content="Search results for: Hilal Ozkan"> <meta name="keywords" content="Hilal Ozkan"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" data-toggle="collapse" data-target="#navbarMenu" aria-controls="navbarMenu" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="w-100"> <div class="d-none d-lg-flex flex-row-reverse"> <form method="get" action="https://waset.org/search" class="form-inline my-2 my-lg-0"> <input class="form-control mr-sm-2" type="search" placeholder="Search Conferences" value="Hilal Ozkan" name="q" aria-label="Search"> <button class="btn btn-light my-2 my-sm-0" type="submit"><i class="fas fa-search"></i></button> </form> </div> <div class="collapse navbar-collapse mt-1" id="navbarMenu"> <ul class="navbar-nav ml-auto align-items-center" id="mainNavMenu"> <li class="nav-item"> <a class="nav-link" href="https://waset.org/conferences" title="Conferences in 2024/2025/2026">Conferences</a> </li> <li class="nav-item"> <a class="nav-link" href="https://waset.org/disciplines" title="Disciplines">Disciplines</a> </li> <li 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Hilal Ozkan"> <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> 65</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Hilal Ozkan</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">65</span> Analysis of Criteria for Determining the Location of Hilal Observation in the Tropical Regions: Study of Hilal Observation Location in Bengkulu City</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Badrun%20Taman">Badrun Taman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to review the use of the Bengkulu Provincial Government Mess as the location of rukyatul hilal because its determination has not been carried out scientifically. There are three things that will be analyzed, namely geographical-astronomical conditions, the suitability of the location with ideal criteria, and the determination of the location of rukyatul hilal in accordance with regional conditions based on the results of the study. The research method used is qualitative with an astronomical geographical approach. The results showed that the factor that strengthened the disturbance from the weather aspect was the western sky horizon in the form of the Indian Ocean sea level. The potential for geographical disturbances on this horizon is high sea waves, relatively high sea breezes, and more seawater vapor due to sea surface temperatures and high air humidity. This study found new criteria for determining the location of the observation crescent. The criteria is the western horizon is not sea level (especially the Indian Ocean). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=criteria" title="criteria">criteria</a>, <a href="https://publications.waset.org/abstracts/search?q=location" title=" location"> location</a>, <a href="https://publications.waset.org/abstracts/search?q=Rukyatul%20Hilal" title=" Rukyatul Hilal"> Rukyatul Hilal</a>, <a href="https://publications.waset.org/abstracts/search?q=tropics" title=" tropics"> tropics</a>, <a href="https://publications.waset.org/abstracts/search?q=Indian%20ocean" title=" Indian ocean"> Indian ocean</a> </p> <a href="https://publications.waset.org/abstracts/154295/analysis-of-criteria-for-determining-the-location-of-hilal-observation-in-the-tropical-regions-study-of-hilal-observation-location-in-bengkulu-city" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154295.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">64</span> Effects of Different Calcination Temperature on the Geopolymerization of Fly Ash</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nurcan%20Tugrul">Nurcan Tugrul</a>, <a href="https://publications.waset.org/abstracts/search?q=Funda%20Demir"> Funda Demir</a>, <a href="https://publications.waset.org/abstracts/search?q=Hilal%20Ozkan"> Hilal Ozkan</a>, <a href="https://publications.waset.org/abstracts/search?q=Nur%20Olgun"> Nur Olgun</a>, <a href="https://publications.waset.org/abstracts/search?q=Emek%20Derun"> Emek Derun</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Geopolymers are aluminosilicate-containing materials. The raw materials of the geopolymerization can be natural material such as kaolinite, metakaolin (calcined kaolinite), clay, diatomite, rock powder or can also be industrial by-products such as fly ash, silica fume, blast furnace slag, rice-husk ash, mine tailing, red mud, waste slag, etc. Reactivity of raw materials in geopolymer production is very important for achieving high reaction grade. Fly ash used in geopolymer production has been calcined to obtain tetrahedral SiO₂ and Al₂O₃ structures. In this study, fly ash calcined at different temperatures (700, 800 and 900 °C), and Al₂O₃ addition (Al₂O₃ at min (0%) and max (100%)) were used to produce geopolymers. HCl dissolution method was applied to determine the geopolymerization percentage of samples and Fourier Transform Infrared (FTIR) Spectroscopy was used to find out the optimum calcination temperature for geopolymerization. According to obtained results, the highest geopolymerization percentage (0% alumina added geopolymer equal to 35.789%; 100% alumina added geopolymer equal to 40.546%) was obtained in samples using fly ash calcined at 800 °C. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=geopolymer" title="geopolymer">geopolymer</a>, <a href="https://publications.waset.org/abstracts/search?q=fly%20ash" title=" fly ash"> fly ash</a>, <a href="https://publications.waset.org/abstracts/search?q=Al%E2%82%82O%E2%82%83%20addition" title=" Al₂O₃ addition"> Al₂O₃ addition</a>, <a href="https://publications.waset.org/abstracts/search?q=calcination" title=" calcination"> calcination</a> </p> <a href="https://publications.waset.org/abstracts/103096/effects-of-different-calcination-temperature-on-the-geopolymerization-of-fly-ash" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/103096.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">63</span> Liquid Biopsy Based Microbial Biomarker in Coronary Artery Disease Diagnosis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eyup%20Ozkan">Eyup Ozkan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozkan%20U.%20Nalbantoglu"> Ozkan U. Nalbantoglu</a>, <a href="https://publications.waset.org/abstracts/search?q=Aycan%20Gundogdu"> Aycan Gundogdu</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehmet%20Hora"> Mehmet Hora</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Emre%20Onuk"> A. Emre Onuk</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The human microbiome has been associated with cardiological conditions and this relationship is becoming to be defined beyond the gastrointestinal track. In this study, we investigate the alteration in circulatory microbiota in the context of Coronary Artery Disease (CAD). We received circulatory blood samples from suspected CAD patients and maintain 16S ribosomal RNA sequencing to identify each patient’s microbiome. It was found that Corynebacterium and Methanobacteria genera show statistically significant differences between healthy and CAD patients. The overall biodiversities between the groups were observed to be different revealed by machine learning classification models. We also achieve and demonstrate the performance of a diagnostic method using circulatory blood microbiome-based estimation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coronary%20artery%20disease" title="coronary artery disease">coronary artery disease</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20microbiome" title=" blood microbiome"> blood microbiome</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title=" machine learning"> machine learning</a>, <a href="https://publications.waset.org/abstracts/search?q=angiography" title=" angiography"> angiography</a>, <a href="https://publications.waset.org/abstracts/search?q=next-generation%20sequencing" title=" next-generation sequencing"> next-generation sequencing</a> </p> <a href="https://publications.waset.org/abstracts/144219/liquid-biopsy-based-microbial-biomarker-in-coronary-artery-disease-diagnosis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144219.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">157</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">62</span> Mathematical Modelling of Ultrasound Pre-Treatment in Microwave Dried Strawberry (Fragaria L.) Slices</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hilal%20Uslu">Hilal Uslu</a>, <a href="https://publications.waset.org/abstracts/search?q=Salih%20Eroglu"> Salih Eroglu</a>, <a href="https://publications.waset.org/abstracts/search?q=Betul%20Ozkan"> Betul Ozkan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozcan%20Bulantekin"> Ozcan Bulantekin</a>, <a href="https://publications.waset.org/abstracts/search?q=Alper%20Kuscu"> Alper Kuscu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the strawberry (Fragaria L.) fruits, which were pretreated with ultrasound (US), were worked on in the microwave by using 90W power. Then mathematical modelling was applied to dried fruits by using different experimental thin layer models. The sliced fruits were subjected to ultrasound treatment at a frequency of 40 kHz for 10, 20, and 30 minutes, in an ultrasonic water bath, with a ratio of 1:4 to fruit/water. They are then dried in the microwave (90W). The drying process continued until the product moisture was below 10%. By analyzing the moisture change of the products at a certain time, eight different thin-layer drying models, (Newton, page, modified page, Midilli, Henderson and Pabis, logarithmic, two-term, Wang and Singh) were tested for verification of experimental data. MATLAB R2015a statistical program was used for the modelling, and the best suitable model was determined with R²adj (coefficient of determination of compatibility), and root mean square error (RMSE) values. According to analysis, the drying model that best describes the drying behavior for both drying conditions was determined as the Midilli model by high R²adj and low RMSE values. Control, 10, 20, and 30 min US for groups R²adj and RMSE values was established as respectively; 0,9997- 0,005298; 0,9998- 0,004735; 0,9995- 0,007031; 0,9917-0,02773. In addition, effective diffusion coefficients were calculated for each group and were determined as 3,80x 10⁻⁸, 3,71 x 10⁻⁸, 3,26 x10⁻⁸ ve 3,5 x 10⁻⁸ m/s, respectively. <p class="card-text"><strong>Keywords:</strong> <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=microwave%20drying" title=" microwave drying"> microwave drying</a>, <a href="https://publications.waset.org/abstracts/search?q=strawberry" title=" strawberry"> strawberry</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasound" title=" ultrasound"> ultrasound</a> </p> <a href="https://publications.waset.org/abstracts/122549/mathematical-modelling-of-ultrasound-pre-treatment-in-microwave-dried-strawberry-fragaria-l-slices" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/122549.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">153</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">61</span> Towards the Unification of Hijri Calendar: A Study in the Application of Hilal Visibility Criteria According to the Agreement of Four Religious Ministers in Southeast Asia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdul%20Mufid">Abdul Mufid</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to integrate hadith, astronomy, and sociology studies in studying the accelerated implementation of the unification of the Hijri calendar through a multidisciplinary approach. The Hijri calendar is compiled based on the astronomical phenomena of regular movements of the earth, moon, and sun. Meanwhile, for the implementation of worship, the Hijri calendar must refer to the provisions of Islamic law or fiqh. To set the Hijri calendar, agreement on the criteria for the visibility of the new moon (first crescent), date limits, and absolute authority is required. Agreement on visibility criteria requires a valid basis for astronomical studies. Agreement on territorial boundaries is necessary because our earth is round, and the new moon cannot be observed simultaneously. And the agreement of the authorities is also needed to resolve unavoidable differences, especially differences in the appearance of the new moon and differences in schools of thought. The research is based on astronomical data, the experiences of Indonesia and Islamic countries regarding the Hijri calendar, in-depth and focused interviews with various sources, as well as a review of hadith literature. The results of the study show that the implementation of the unification of the Hijri calendar through the three approaches above can be carried out and can be accelerated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calendar%20unification" title="calendar unification">calendar unification</a>, <a href="https://publications.waset.org/abstracts/search?q=new%20moon%20%28hilal%29%20visibility" title=" new moon (hilal) visibility"> new moon (hilal) visibility</a>, <a href="https://publications.waset.org/abstracts/search?q=multidisciplinary%20approach" title=" multidisciplinary approach"> multidisciplinary approach</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20unity%20of%20the%20Muslims" title=" the unity of the Muslims"> the unity of the Muslims</a> </p> <a href="https://publications.waset.org/abstracts/160044/towards-the-unification-of-hijri-calendar-a-study-in-the-application-of-hilal-visibility-criteria-according-to-the-agreement-of-four-religious-ministers-in-southeast-asia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/160044.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">88</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">60</span> Effect of Proteoliposome Concentration on Salt Rejection Rate of Polysulfone Membrane Prepared by Incorporation of Escherichia coli and Halomonas elongata Aquaporins </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aysenur%20Ozturk">Aysenur Ozturk</a>, <a href="https://publications.waset.org/abstracts/search?q=Aysen%20Yildiz"> Aysen Yildiz</a>, <a href="https://publications.waset.org/abstracts/search?q=Hilal%20Yilmaz"> Hilal Yilmaz</a>, <a href="https://publications.waset.org/abstracts/search?q=Pinar%20Ergenekon"> Pinar Ergenekon</a>, <a href="https://publications.waset.org/abstracts/search?q=Melek%20Ozkan"> Melek Ozkan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Water scarcity is one of the most important environmental problems of the World today. Desalination process is regarded as a promising solution to solve drinking water problem of the countries facing with water shortages. Reverse osmosis membranes are widely used for desalination processes. Nano structured biomimetic membrane production is one of the most challenging research subject for improving water filtration efficiency of the membranes and for reducing the cost of desalination processes. There are several researches in the literature on the development of novel biomimetic nanofiltration membranes by incorporation of aquaporin Z molecules. Aquaporins are cell membrane proteins that allow the passage of water molecules and reject all other dissolved solutes. They are present in cell membranes of most of the living organisms and provide high water passage capacity. In this study, GST (Glutathione S-transferas) tagged E. coli aquaporinZ and H. elongate aquaporin proteins, which were previously cloned and characterized, were purified from E. coli BL21 cells and used for fabrication of modified Polysulphone Membrane (PS). Aquaporins were incorporated on the surface of the membrane by using 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) phospolipids as carrier liposomes. Aquaporin containing proteoliposomes were immobilized on the surface of the membrane with m-phenylene-diamine (MPD) and trimesoyl chloride (TMC) rejection layer. Water flux, salt rejection and glucose rejection performances of the thin film composite membranes were tested by using Dead-End Reactor Cell. In this study, effect of proteoliposome concentration, and filtration pressure on water flux and salt rejection rate of membranes were investigated. Type of aquaporin used for membrane fabrication, flux and pressure applied for filtration were found to be important parameters affecting rejection rates. Results suggested that optimization of concentration of aquaporin carriers (proteoliposomes) on the membrane surface is necessary for fabrication of effective composite membranes used for different purposes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aquaporins" title="aquaporins">aquaporins</a>, <a href="https://publications.waset.org/abstracts/search?q=biomimmetic%20membranes" title=" biomimmetic membranes"> biomimmetic membranes</a>, <a href="https://publications.waset.org/abstracts/search?q=desalination" title=" desalination"> desalination</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20treatment" title=" water treatment"> water treatment</a> </p> <a href="https://publications.waset.org/abstracts/87255/effect-of-proteoliposome-concentration-on-salt-rejection-rate-of-polysulfone-membrane-prepared-by-incorporation-of-escherichia-coli-and-halomonas-elongata-aquaporins" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87255.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">198</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">59</span> Dry Modifications of PCL/Chitosan/PCL Tissue Scaffolds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ozan%20Ozkan">Ozan Ozkan</a>, <a href="https://publications.waset.org/abstracts/search?q=Hilal%20Turkoglu%20Sasmazel"> Hilal Turkoglu Sasmazel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Natural polymers are widely used in tissue engineering applications, because of their biocompatibility, biodegradability and solubility in the physiological medium. On the other hand, synthetic polymers are also widely utilized in tissue engineering applications, because they carry no risk of infectious diseases and do not cause immune system reaction. However, the disadvantages of both polymer types block their individual usages as tissue scaffolds efficiently. Therefore, the idea of usage of natural and synthetic polymers together as a single 3D hybrid scaffold which has the advantages of both and the disadvantages of none has been entered to the literature. On the other hand, even though these hybrid structures support the cell adhesion and/or proliferation, various surface modification techniques applied to the surfaces of them to create topographical changes on the surfaces and to obtain reactive functional groups required for the immobilization of biomolecules, especially on the surfaces of synthetic polymers in order to improve cell adhesion and proliferation. In a study presented here, to improve the surface functionality and topography of the layer by layer electrospun 3D poly-epsilon-caprolactone/chitosan/poly-epsilon-caprolactone hybrid tissue scaffolds by using atmospheric pressure plasma method, thus to improve cell adhesion and proliferation of these tissue scaffolds were aimed. The formation/creation of the functional hydroxyl and amine groups and topographical changes on the surfaces of scaffolds were realized by using two different atmospheric pressure plasma systems (nozzle type and dielectric barrier discharge (DBD) type) carried out under different gas medium (air, Ar+O2, Ar+N2). The plasma modification time and distance for the nozzle type plasma system as well as the plasma modification time and the gas flow rate for DBD type plasma system were optimized with monitoring the changes in surface hydrophilicity by using contact angle measurements. The topographical and chemical characterizations of these modified biomaterials’ surfaces were carried out with SEM and ESCA, respectively. The results showed that the atmospheric pressure plasma modifications carried out with both nozzle type plasma and DBD plasma caused topographical and functionality changes on the surfaces of the layer by layer electrospun tissue scaffolds. However, the shelf life studies indicated that the hydrophilicity introduced to the surfaces was mainly because of the functionality changes. Therefore, according to the optimized results, samples treated with nozzle type air plasma modification applied for 9 minutes from a distance of 17 cm and Ar+O2 DBD plasma modification applied for 1 minute under 70 cm3/min O2 flow rate were found to have the highest hydrophilicity compared to pristine samples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biomaterial" title="biomaterial">biomaterial</a>, <a href="https://publications.waset.org/abstracts/search?q=chitosan" title=" chitosan"> chitosan</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid" title=" hybrid"> hybrid</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma" title=" plasma"> plasma</a> </p> <a href="https://publications.waset.org/abstracts/10533/dry-modifications-of-pclchitosanpcl-tissue-scaffolds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10533.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">276</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">58</span> Heterogeneous Catalytic Ozonation of Diethyl Phthalate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chedly%20Tizaoui">Chedly Tizaoui</a>, <a href="https://publications.waset.org/abstracts/search?q=Hussain%20Mohammed"> Hussain Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=Lobna%20Mansouri"> Lobna Mansouri</a>, <a href="https://publications.waset.org/abstracts/search?q=Nidal%20Hilal"> Nidal Hilal</a>, <a href="https://publications.waset.org/abstracts/search?q=Latifa%20Bousselmi"> Latifa Bousselmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The degradation of diethyl phthalate (DEP) was studied using heterogeneous catalytic ozonation. Activated carbon was used as a catalyst. The degradation of DEP with ozone alone was slow while catalytic ozonation increased degradation rates. Second-order reaction kinetics was used to describe the experimental data, and the corresponding rate constant values were 1.19 and 3.94 M-1.s-1 for ozone and ozone/activated carbon respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ozone" title="ozone">ozone</a>, <a href="https://publications.waset.org/abstracts/search?q=heterogeneous%20catalytic%20ozonation" title=" heterogeneous catalytic ozonation"> heterogeneous catalytic ozonation</a>, <a href="https://publications.waset.org/abstracts/search?q=diethyl%20phthalate" title=" diethyl phthalate"> diethyl phthalate</a>, <a href="https://publications.waset.org/abstracts/search?q=endocrine%20disrupting%20chemicals" title=" endocrine disrupting chemicals"> endocrine disrupting chemicals</a> </p> <a href="https://publications.waset.org/abstracts/67074/heterogeneous-catalytic-ozonation-of-diethyl-phthalate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/67074.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">347</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">57</span> Fibroblast Compatibility of Core-Shell Coaxially Electrospun Hybrid Poly(ε-Caprolactone)/Chitosan Scaffolds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hilal%20Turkoglu%20Sasmazel">Hilal Turkoglu Sasmazel</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozan%20Ozkan"> Ozan Ozkan</a>, <a href="https://publications.waset.org/abstracts/search?q=Seda%20Surucu"> Seda Surucu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Tissue engineering is the field of treating defects caused by injuries, trauma or acute/chronic diseases by using artificial scaffolds that mimic the extracellular matrix (ECM), the natural biological support for the tissues and cells within the body. The main aspects of a successful artificial scaffold are (i) large surface area in order to provide multiple anchorage points for cells to attach, (ii) suitable porosity in order to achieve 3 dimensional growth of the cells within the scaffold as well as proper transport of nutrition, biosignals and waste and (iii) physical, chemical and biological compatibility of the material in order to obtain viability throughout the healing process. By hybrid scaffolds where two or more different materials were combined with advanced fabrication techniques into complex structures, it is possible to combine the advantages of individual materials into one single structure while eliminating the disadvantages of each. Adding this to the complex structure provided by advanced fabrication techniques enables obtaining the desired aspects of a successful artificial tissue scaffold. In this study, fibroblast compatibility of poly(ε-caprolactone) (PCL)/chitosan core-shell electrospun hybrid scaffolds with proper mechanical, chemical and physical properties successfully developed in our previous study was investigated. Standard 7-day cell culture was carried out with L929 fibroblast cell line. The viability of the cells cultured with the scaffolds was monitored with 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) viability assay for every 48 h starting with 24 h after the initial seeding. In this assay, blank commercial tissue culture polystyrene (TCPS) Petri dishes, single electrospun PCL and single electrospun chitosan mats were used as control in order to compare and contrast the performance of the hybrid scaffolds. The adhesion, proliferation, spread and growth of the cells on/within the scaffolds were observed visually on the 3rd and the 7th days of the culture period with confocal laser scanning microscopy (CSLM) and scanning electron microscopy (SEM). The viability assay showed that the hybrid scaffolds caused no toxicity for fibroblast cells and provided a steady increase in cell viability, effectively doubling the cell density for every 48 h for the course of 7 days, as compared to TCPS, single electrospun PCL or chitosan mats. The cell viability on the hybrid scaffold was ~2 fold better compared to TCPS because of its 3D ECM-like structure compared to 2D flat surface of commercially cell compatible TCPS, and the performance was ~2 fold and ~10 fold better compared to single PCL and single chitosan mats, respectively, even though both fabricated similarly with electrospinning as non-woven fibrous structures, because single PCL and chitosan mats were either too hydrophobic or too hydrophilic to maintain cell attachment points. The viability results were verified with visual images obtained with CSLM and SEM, in which cells found to achieve characteristic spindle-like fibroblast shape and spread on the surface as well within the pores successfully at high densities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chitosan" title="chitosan">chitosan</a>, <a href="https://publications.waset.org/abstracts/search?q=core-shell" title=" core-shell"> core-shell</a>, <a href="https://publications.waset.org/abstracts/search?q=fibroblast" title=" fibroblast"> fibroblast</a>, <a href="https://publications.waset.org/abstracts/search?q=electrospinning" title=" electrospinning"> electrospinning</a>, <a href="https://publications.waset.org/abstracts/search?q=PCL" title=" PCL"> PCL</a> </p> <a href="https://publications.waset.org/abstracts/95861/fibroblast-compatibility-of-core-shell-coaxially-electrospun-hybrid-polye-caprolactonechitosan-scaffolds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/95861.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">176</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">56</span> Photocatalytic Glucose Electrooxidation Applications of Titanium Dioxide Supported CD and CdTe Catalysts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hilal%20%20Kivrak">Hilal Kivrak</a>, <a href="https://publications.waset.org/abstracts/search?q=Aykut%20%C3%87a%C4%9FLar"> Aykut ÇağLar</a>, <a href="https://publications.waset.org/abstracts/search?q=Nahit%20Akta%C5%9F"> Nahit Aktaş</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Osman%20Solak"> Ali Osman Solak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> At present, Cd/TiO₂ and CdTe/TiO₂ catalysts are prepared via sodium borohydride (NaBH4) reduction method. These catalysts are characterized by fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). These Cd/TiO₂ and CdTe/TiO₂ are employed as catalysts for the photocatalytic oxidation of glucose. Cyclic voltammetry (CV), chronoamperometry (CA), and electrochemical impedance spectroscopy (EIS) measurements are used to investigate their glucose electrooxidation activities of catalysts at long and under UV illumination (ʎ=354 nm). CdTe/TiO₂ catalyst is showed the best photocatalytic glucose electrooxidation activity compared to Cd/TiO₂ catalyst. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cadmium" title="cadmium">cadmium</a>, <a href="https://publications.waset.org/abstracts/search?q=NaBH4%20reduction%20method" title=" NaBH4 reduction method"> NaBH4 reduction method</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalytic%20glucose%20electrooxidation" title=" photocatalytic glucose electrooxidation"> photocatalytic glucose electrooxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=Tellerium" title=" Tellerium"> Tellerium</a>, <a href="https://publications.waset.org/abstracts/search?q=TiO2" title=" TiO2"> TiO2</a> </p> <a href="https://publications.waset.org/abstracts/124317/photocatalytic-glucose-electrooxidation-applications-of-titanium-dioxide-supported-cd-and-cdte-catalysts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/124317.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">276</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">55</span> Iterative White Balance Adjustment Process in Production Line</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Onur%20Onder">Onur Onder</a>, <a href="https://publications.waset.org/abstracts/search?q=Celal%20Tanuca"> Celal Tanuca</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahir%20Ozil"> Mahir Ozil</a>, <a href="https://publications.waset.org/abstracts/search?q=Halil%20Sen"> Halil Sen</a>, <a href="https://publications.waset.org/abstracts/search?q=Alk%C4%B1m%20Ozkan"> Alkım Ozkan</a>, <a href="https://publications.waset.org/abstracts/search?q=Engin%20Ceylan"> Engin Ceylan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ali%20Istek"> Ali Istek</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozgur%20Saglam"> Ozgur Saglam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> White balance adjustment of LCD TVs is an important procedure which has a direct influence on quality perception. Existing methods adjust RGB gain and offset values in different white levels during production. This paper suggests an iterative method in which the gamma is pre-adjusted during the design stage, and only 80% white is adjusted during production by modifying only RGB gain values (offset values are not modified). This method reduces the white balance adjustment time, contributing to the total efficiency of the production. Experiment shows that the adjustment results are well within requirements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=color%20temperature" title="color temperature">color temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=LCD%20panel%20deviation" title=" LCD panel deviation"> LCD panel deviation</a>, <a href="https://publications.waset.org/abstracts/search?q=LCD%20TV%20manufacturing" title=" LCD TV manufacturing"> LCD TV manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=white%20balance" title=" white balance"> white balance</a> </p> <a href="https://publications.waset.org/abstracts/143486/iterative-white-balance-adjustment-process-in-production-line" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143486.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">218</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">54</span> A Generalization of the Secret Sharing Scheme Codes Over Certain Ring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20%C3%96zbek">Ibrahim Özbek</a>, <a href="https://publications.waset.org/abstracts/search?q=Erdo%C4%9Fan%20Mehmet%20%C3%96zkan"> Erdoğan Mehmet Özkan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, we generalize (k,n) threshold secret sharing scheme on the study Ozbek and Siap to the codes over the ring Fq+ αFq. In this way, it is mentioned that the method obtained in that article can also be used on codes over rings, and new advantages to be obtained. The method of securely sharing the key in cryptography, which Shamir first systematized and Massey carried over to codes, became usable for all error-correcting codes. The firewall of this scheme is based on the hardness of the syndrome decoding problem. Also, an open study area is left for those working for other rings and code classes. All codes that correct errors with this method have been the working area of this method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=secret%20sharing%20scheme" title="secret sharing scheme">secret sharing scheme</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20codes" title=" linear codes"> linear codes</a>, <a href="https://publications.waset.org/abstracts/search?q=algebra" title=" algebra"> algebra</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20rings" title=" finite rings"> finite rings</a> </p> <a href="https://publications.waset.org/abstracts/164183/a-generalization-of-the-secret-sharing-scheme-codes-over-certain-ring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164183.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">75</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">53</span> Representation of “Gezi Parkı Actions” in Media and Resistance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sibel%20%C3%96zkan">Sibel Özkan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to set forth the perception of young people in Turkey about “Gezi Parkı Actions” which has been represented by different views on social and traditional media. In-depth interview method was carried out with all of the participants who consisted of high school students. All interviews has been conducted in areas where the actions take place and the numbers of participants who are using and not using social media were equal. There are minor differences between young people who are using and not using social media. Participants who are not using social media had an opinion only about saving nature aspect of Gezi Parkı Actions. On the other hand, people who are using social media had another reasons such as freedom of expression, respect to the lifestyles etc. to join Gezi Parkı Actions. It was found that young people do not completely trust traditional media anymore. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gezi%20Park%C4%B1" title="Gezi Parkı">Gezi Parkı</a>, <a href="https://publications.waset.org/abstracts/search?q=resistance" title=" resistance"> resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20media" title=" social media"> social media</a>, <a href="https://publications.waset.org/abstracts/search?q=hegemony" title=" hegemony"> hegemony</a> </p> <a href="https://publications.waset.org/abstracts/12809/representation-of-gezi-parki-actions-in-media-and-resistance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/12809.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">437</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">52</span> Strategic Communication in Turkish Independence War</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=%C3%96zkan%20%C3%96zgen%C3%A7">Özkan Özgenç</a>, <a href="https://publications.waset.org/abstracts/search?q=Serdar%20Hacisaliho%C4%9Flu"> Serdar Hacisalihoğlu</a>, <a href="https://publications.waset.org/abstracts/search?q=Murat%20Yanik"> Murat Yanik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> History has shown that quantitative and qualitative supremacy in terms of military and economic power has been inadequate to reach the desired results. In addition, public support has been a crucial requirement for the success of the any struggle. As a leader seeking ways for the independence of the country, Ataturk comprehended that the only solution was possible with the help of public will and determination. Ataturk needed an impeccable communication strategy to combine efforts by establishing a united notion and action; to convince the world and Turkish nation of the legitimacy and sacredness of Independence struggle; and to show the resolution and determination of Turkish nation against the invaders. To emancipate the Turkish nation, Ataturk shaped the nation's emotions, ideas, and behaviors by using the most appropriate tools at the best time and place since the start of Independence War in May 19, 1919. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Atat%C3%BCrk" title="Atatürk">Atatürk</a>, <a href="https://publications.waset.org/abstracts/search?q=Turkish%20independence%20struggle" title=" Turkish independence struggle"> Turkish independence struggle</a>, <a href="https://publications.waset.org/abstracts/search?q=strategic%20communication" title=" strategic communication"> strategic communication</a>, <a href="https://publications.waset.org/abstracts/search?q=independence%20war" title=" independence war"> independence war</a> </p> <a href="https://publications.waset.org/abstracts/30877/strategic-communication-in-turkish-independence-war" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30877.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">293</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">51</span> Factors Related to Teachers’ Analysis of Classroom Assessments</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hussain%20A.%20Alkharusi">Hussain A. Alkharusi</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20S.%20Aldhafri"> Said S. Aldhafri</a>, <a href="https://publications.waset.org/abstracts/search?q=Hilal%20Z.%20Alnabhani"> Hilal Z. Alnabhani</a>, <a href="https://publications.waset.org/abstracts/search?q=Muna%20Alkalbani"> Muna Alkalbani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Analysing classroom assessments is one of the responsibilities of the teacher. It aims improving teacher’s instruction and assessment as well as student learning. The present study investigated factors that might explain variation in teachers’ practices regarding analysis of classroom assessments. The factors considered in the investigation included gender, in-service assessment training, teaching load, teaching experience, knowledge in assessment, attitude towards quantitative aspects of assessment, and self-perceived competence in analysing assessments. Participants were 246 in-service teachers in Oman. Results of a stepwise multiple linear regression analysis revealed that self-perceived competence was the only significant factor explaining the variance in teachers’ analysis of assessments. Implications for research and practice are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=analysis%20of%20assessment" title="analysis of assessment">analysis of assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=classroom%20assessment" title=" classroom assessment"> classroom assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=in-service%20teachers" title=" in-service teachers"> in-service teachers</a>, <a href="https://publications.waset.org/abstracts/search?q=self-competence" title=" self-competence"> self-competence</a> </p> <a href="https://publications.waset.org/abstracts/4950/factors-related-to-teachers-analysis-of-classroom-assessments" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4950.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">333</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">50</span> Analysis of Cooperative Hybrid ARQ with Adaptive Modulation and Coding on a Correlated Fading Channel Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Ozkan">Ibrahim Ozkan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, a cross-layer design which combines adaptive modulation and coding (AMC) and hybrid automatic repeat request (HARQ) techniques for a cooperative wireless network is investigated analytically. Previous analyses of such systems in the literature are confined to the case where the fading channel is independent at each retransmission, which can be unrealistic unless the channel is varying very fast. On the other hand, temporal channel correlation can have a significant impact on the performance of HARQ systems. In this study, utilizing a Markov channel model which accounts for the temporal correlation, the performance of non-cooperative and cooperative networks are investigated in terms of packet loss rate and throughput metrics for Chase combining HARQ strategy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cooperative%20network" title="cooperative network">cooperative network</a>, <a href="https://publications.waset.org/abstracts/search?q=adaptive%20modulation%20and%20coding" title=" adaptive modulation and coding"> adaptive modulation and coding</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20ARQ" title=" hybrid ARQ"> hybrid ARQ</a>, <a href="https://publications.waset.org/abstracts/search?q=correlated%20fading" title=" correlated fading"> correlated fading</a> </p> <a href="https://publications.waset.org/abstracts/108916/analysis-of-cooperative-hybrid-arq-with-adaptive-modulation-and-coding-on-a-correlated-fading-channel-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108916.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">144</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">49</span> Presence of an Epibiont Epistylis sp. (Protozoa, Ciliophora) on Some Zooplankton </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hilal%20Bulut">Hilal Bulut</a>, <a href="https://publications.waset.org/abstracts/search?q=Serap%20Saler"> Serap Saler</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Protozoan ciliate epibionts infestation on zooplankton in Cip Dam Lake were studied seasonally, between spring 2014-winter 2015 The ciliates peritrich Epibiont Epistylis sp. (Protozoa, Ciliophora) was found as colony form on some individuals of different zooplanktonic groups, especially rotifers and copepods. Totally 23 zooplankton species (19 species from Rotifera, 3 species from Cladocera and 1 species from Copepoda in Cip Dam Lake were investigated. Rotifers were the most important zooplanktonic group (82.7 % of total) and the taxa observed with epibionts were Keratella, Polyarthra, and Brachionus. The highest densities of infected zooplankton was observed in winter (14265 ind.m-3), the lowest densities of infected zooplankton was found in summer (3056 ind.m-). Rotifers were most infected groups with 75% in this study. Epistylis sp. was found on three species of rotifers and one copepod species. Infestation of Epistylis sp. has been registered for the first time in Cip Dam Lake. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=copepoda" title="copepoda">copepoda</a>, <a href="https://publications.waset.org/abstracts/search?q=epibiosis" title=" epibiosis"> epibiosis</a>, <a href="https://publications.waset.org/abstracts/search?q=peritrich" title=" peritrich"> peritrich</a>, <a href="https://publications.waset.org/abstracts/search?q=rotifera" title=" rotifera"> rotifera</a> </p> <a href="https://publications.waset.org/abstracts/52116/presence-of-an-epibiont-epistylis-sp-protozoa-ciliophora-on-some-zooplankton" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52116.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">253</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">48</span> The Role of Social Media in Activating Youth Participation in the Community</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raya%20Hamed%20Hilal%20Al%20Maamari">Raya Hamed Hilal Al Maamari</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Gulf societies have been undergoing radical changes due to the technology transfer. It altered the humanities attitudes, especially, youth habits as they have become an addicted to using social media. This study aimed to find out the ratio of social media in guiding youth to participate with government’s institutions in decision-making and developing their societies. The study considered a descriptive study, social survey method was used on a sample of 100 young from different gulf countries, using an electronic questionnaire, as well as, some interviews with famous leaders of youth groups. Finally, the researcher suggested some effective ways activate youth efforts using social media in an effective manner to plan for the development policy in the community. The findings illustrated that social media plays a vital role in encouraging youth to participate enthusiastically in providing services. Noticeably, social media contains large numbers of youth. Therefore, the influences will be widely and feasible. Moreover, the study indicated the fact that most of the youth teamwork started in social media. Then, it has been growing in the real society. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=community" title="community">community</a>, <a href="https://publications.waset.org/abstracts/search?q=participation" title=" participation"> participation</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20media" title=" social media"> social media</a>, <a href="https://publications.waset.org/abstracts/search?q=youth" title=" youth"> youth</a> </p> <a href="https://publications.waset.org/abstracts/65215/the-role-of-social-media-in-activating-youth-participation-in-the-community" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65215.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">375</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">47</span> Resilience and Renewal: Sustainable Tourism Development in Post-Earthquake Marrakech-El Haouz</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Oumayma%20Hilal">Oumayma Hilal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The devastating earthquake in Marrakech-El Haouz in September 2023 underscores the critical need for sustainable tourism practices. This study proposes innovative approaches to territory tourism, prioritizing resilient and sustainable development to aid recovery and empower local communities. Using a mixed-methods approach, the research evaluates post-earthquake tourism impacts, gathers local perspectives, and benchmarks global models for disaster recovery through tourism. The paper aims to offer practical, community-centric tourism initiatives, integrated with strategic communication strategies, to enhance socio-economic welfare and ensure long-term resilience. The findings are expected to contribute significantly to sustainable tourism literature in post-disaster contexts and provide actionable strategies for the revitalization of the Marrakech-El Haouz region. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sustainable%20tourism" title="sustainable tourism">sustainable tourism</a>, <a href="https://publications.waset.org/abstracts/search?q=community%20development" title=" community development"> community development</a>, <a href="https://publications.waset.org/abstracts/search?q=Marrakech%20El%20Haouz" title=" Marrakech El Haouz"> Marrakech El Haouz</a>, <a href="https://publications.waset.org/abstracts/search?q=communication%20strategies" title=" communication strategies"> communication strategies</a>, <a href="https://publications.waset.org/abstracts/search?q=territory%20tourism" title=" territory tourism"> territory tourism</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20tourism" title=" sustainable tourism"> sustainable tourism</a>, <a href="https://publications.waset.org/abstracts/search?q=community%20development" title=" community development"> community development</a> </p> <a href="https://publications.waset.org/abstracts/180838/resilience-and-renewal-sustainable-tourism-development-in-post-earthquake-marrakech-el-haouz" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/180838.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">55</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">46</span> An Explorative Research on the Cook and Stewards Employment: Turkish Flagged Ship's Perspective</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mehmet%20Yahsi">Mehmet Yahsi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozkan%20Ugurlu"> Ozkan Ugurlu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cabin department among the stewards and cooks on ships, has an important place in terms of a sufficient and qualified nutrition of seafarers. From this perspective, ships must be employed with a sufficient number of cabin department. In this study, in order to research on the Turkish-flagged ships cook and stewards employment; Our national manning regulation compared with international regulations. The data used in this study were collected via visiting of the ships. 3000 gross tonnage and above engaged in international voyages 181 Turkish-flagged ship’s crew lists were compared with Minimum Safety Manning Certificates. According to the findings; employment rates, %95,6 cook, and %50,8 steward. According to the results of the study; Turkish-flagged ships, although it is not obliged to cook and steward, were employed on ships. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=manning" title="manning">manning</a>, <a href="https://publications.waset.org/abstracts/search?q=cabin%20department" title=" cabin department"> cabin department</a>, <a href="https://publications.waset.org/abstracts/search?q=minimum%20safety%20manning%20certificate" title=" minimum safety manning certificate"> minimum safety manning certificate</a>, <a href="https://publications.waset.org/abstracts/search?q=Turkish%20flag" title=" Turkish flag"> Turkish flag</a> </p> <a href="https://publications.waset.org/abstracts/62714/an-explorative-research-on-the-cook-and-stewards-employment-turkish-flagged-ships-perspective" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62714.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">397</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">45</span> Estimation of Chronic Kidney Disease Using Artificial Neural Network</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ilker%20Ali%20Ozkan">Ilker Ali Ozkan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, an artificial neural network model has been developed to estimate chronic kidney failure which is a common disease. The patients’ age, their blood and biochemical values, and 24 input data which consists of various chronic diseases are used for the estimation process. The input data have been subjected to preprocessing because they contain both missing values and nominal values. 147 patient data which was obtained from the preprocessing have been divided into as 70% training and 30% testing data. As a result of the study, artificial neural network model with 25 neurons in the hidden layer has been found as the model with the lowest error value. Chronic kidney failure disease has been able to be estimated accurately at the rate of 99.3% using this artificial neural network model. The developed artificial neural network has been found successful for the estimation of chronic kidney failure disease using clinical data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=estimation" title="estimation">estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20neural%20network" title=" artificial neural network"> artificial neural network</a>, <a href="https://publications.waset.org/abstracts/search?q=chronic%20kidney%20failure%20disease" title=" chronic kidney failure disease"> chronic kidney failure disease</a>, <a href="https://publications.waset.org/abstracts/search?q=disease%20diagnosis" title=" disease diagnosis"> disease diagnosis</a> </p> <a href="https://publications.waset.org/abstracts/38766/estimation-of-chronic-kidney-disease-using-artificial-neural-network" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38766.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">447</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">44</span> Characterization of Poly(Hydroxyethyl Methacrylate-Glycidyl Methacrylate)-Imino Diacetic Acid Membrane to Adsorbing Leather Dye</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmet%20Aslan">Ahmet Aslan</a>, <a href="https://publications.waset.org/abstracts/search?q=Safiye%20Meric%20Acikel"> Safiye Meric Acikel</a>, <a href="https://publications.waset.org/abstracts/search?q=Raziye%20Hilal%20Senay"> Raziye Hilal Senay</a>, <a href="https://publications.waset.org/abstracts/search?q=Sinan%20Akgol"> Sinan Akgol</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Different chemical substances and too much water are used during leather production. Therefore, the waste water load of the leather industry is harmful to the environment. One of the pollution sources is the production of leather coloring process is a further need to focus on the removal of dye waste waters subject. These water-soluble dyes have a small organic molecular size. Besides the environmental hazards, these dyes cannot be underestimated, they also have harmful effects on human health. In this study, poly(hydroxyethyl methacrylate-glycidyl methacrylate) p(HEMA-GMA) hydrogel membranes were synthesized by UV polymerization method. The hydrogel synthesized is modified with imino diacetic acid (IDA) and then chelated with Cr (III) ions. The chelating capacity of the membranes was determined according to the time, pH and concentration parameters. Dynamic swelling test, elemental analysis, ninhydrin analysis and adsorption, desorption and reusability performances of membranes were also determined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=adsorption" title="adsorption">adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=dye" title=" dye"> dye</a>, <a href="https://publications.waset.org/abstracts/search?q=leather" title=" leather"> leather</a>, <a href="https://publications.waset.org/abstracts/search?q=p%28HEMA-GMA%29-IDA" title=" p(HEMA-GMA)-IDA"> p(HEMA-GMA)-IDA</a> </p> <a href="https://publications.waset.org/abstracts/80973/characterization-of-polyhydroxyethyl-methacrylate-glycidyl-methacrylate-imino-diacetic-acid-membrane-to-adsorbing-leather-dye" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80973.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">181</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> Efficient Hydrogen Separation through Pd-Pt Membrane</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lawan%20Muhammad%20Adam">Lawan Muhammad Adam</a>, <a href="https://publications.waset.org/abstracts/search?q=Abduljabar%20Hilal%20Alsayoud"> Abduljabar Hilal Alsayoud</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most promising techniques to produce pure hydrogen is through a palladium-based membrane (Pd-membrane). Density functional theory (DFT) is employed in this work to examine how the physical and chemical adsorption properties of hydrogen on the surface of Pd-Pt can be mutated in the presence of contaminating gases, CH₄, CO, and CO₂. The main target is to survey the energy topology related to hydrogen adsorption while adjusting the stages of freedom in both the structure and composition. The adsorption sites, crystal plane of the slab, and relative orientation of the adsorbed molecules on its surface, as well as various arrangements of adsorbed species, have been considered in this study. The dependency of hydrogen adsorption on surface coverage is studied. The study demonstrated the physical adsorption energies of the molecules on the surface concerning the different coverages of hydrogen atoms. The most stable combinations of the adsorption sites (Top, Hollow, and Bridge) with various orientations of gaseous molecules on the Pd-Pt surface were identified according to their calculated energies. When the binding of contaminating gaseous species to the Pd-Pt surface and their impact on the physical adsorption energies of the H₂ are examined, it is observed that the most poisonous gas relative to all other gases modifies the energetics of the adsorption process of hydrogen on the surface. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=DFT" title="DFT">DFT</a>, <a href="https://publications.waset.org/abstracts/search?q=Pd-Pt-membrane" title=" Pd-Pt-membrane"> Pd-Pt-membrane</a>, <a href="https://publications.waset.org/abstracts/search?q=H%E2%82%82" title=" H₂"> H₂</a>, <a href="https://publications.waset.org/abstracts/search?q=CO" title=" CO"> CO</a>, <a href="https://publications.waset.org/abstracts/search?q=CO%E2%82%82" title=" CO₂"> CO₂</a> </p> <a href="https://publications.waset.org/abstracts/178203/efficient-hydrogen-separation-through-pd-pt-membrane" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178203.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">73</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">42</span> An Explorative Research on the Electric and Electronic Officers Employment: Turkish Flagged Ship's Perspective</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mehmet%20Yahsi">Mehmet Yahsi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozkan%20Ugurlu"> Ozkan Ugurlu</a>, <a href="https://publications.waset.org/abstracts/search?q=Ercan%20Yuksekyildiz"> Ercan Yuksekyildiz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Assistant department among the electric and electronic officers on ships, has an important place for the maintenance of electric and electronic devices. From this perspective, ships must be employed with a sufficient number of assistant department. In this study, in order to research on the Turkish-flagged ships electric and electronic officers employment; Our national manning regulation compared with international regulations. The data used in this study were collected via visiting of the ships. 3000 gross tonnage and above engaged in international voyages 181 Turkish-flagged ship’s crew lists were compared with Minimum Safety Manning Certificates. According to the findings; employment rate, %54 electric and electronic officers. According to the results of the study; Turkish-flagged ships, although it is not obliged to electric and electronic officers, were employed on ships. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=manning" title="manning">manning</a>, <a href="https://publications.waset.org/abstracts/search?q=electric%20officer" title=" electric officer"> electric officer</a>, <a href="https://publications.waset.org/abstracts/search?q=electronic%20officer" title=" electronic officer"> electronic officer</a>, <a href="https://publications.waset.org/abstracts/search?q=minimum%20safety%20manning%20certificate" title=" minimum safety manning certificate"> minimum safety manning certificate</a> </p> <a href="https://publications.waset.org/abstracts/62717/an-explorative-research-on-the-electric-and-electronic-officers-employment-turkish-flagged-ships-perspective" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62717.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">435</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">41</span> A New PWM Command for Cascaded H-Bridge Multilevel Increasing the Quality and Reducing Harmonics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Youssef%20Babkrani">Youssef Babkrani</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Hiyani"> S. Hiyani</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Naddami"> A. Naddami</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Choukri"> K. Choukri</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Hilal"> M. Hilal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Power Quality has been a problem ever since electrical power was invented and in recent years, it has become the main interest of researchers who are still concerned about finding ways to reduce its negative influence on electrical devices. In this paper we aim to improve the power quality output for H- bridge multilevel inverter used with solar Photovoltaic (PV) panels, we propose a new switching technique that uses a pulse width modulation method (PWM) aiming to reduce the harmonics. This new method introduces a sinusoidal wave compared with modified trapezoidal carriers used to generate the pulses. This new trapezoid carrier waveform is being implemented with different sinusoidal PWM dispositions such as phase disposition (PWM PD), phase opposition disposition (PWM POD), and (PWM APOD) alternative phase opposition disposition and compared with the conventional ones. Using Matlab Simulink R2014a the line voltage and total harmonic distortions (THD) simulated and the quality are increased in spite of variations of DC introduced. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carrier%20waveform" title="carrier waveform">carrier waveform</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20disposition%20%28PD%29" title=" phase disposition (PD)"> phase disposition (PD)</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20opposition%20disposition%20%28POD%29" title=" phase opposition disposition (POD)"> phase opposition disposition (POD)</a>, <a href="https://publications.waset.org/abstracts/search?q=alternative%20phase%20opposition%20disposition%20%28APOD%29" title=" alternative phase opposition disposition (APOD)"> alternative phase opposition disposition (APOD)</a>, <a href="https://publications.waset.org/abstracts/search?q=total%20harmonics%20distortion%20%28THD%29" title=" total harmonics distortion (THD)"> total harmonics distortion (THD)</a> </p> <a href="https://publications.waset.org/abstracts/66203/a-new-pwm-command-for-cascaded-h-bridge-multilevel-increasing-the-quality-and-reducing-harmonics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66203.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">283</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">40</span> Flow Control around Bluff Bodies by Attached Permeable Plates</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gokturk%20Memduh%20Ozkan">Gokturk Memduh Ozkan</a>, <a href="https://publications.waset.org/abstracts/search?q=Huseyin%20Akilli"> Huseyin Akilli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of present study is to control the unsteady flow structure downstream of a circular cylinder by use of attached permeable plates. Particle image velocimetry (PIV) technique and dye visualization experiments were performed in deep water and the flow characteristics were evaluated by means of time-averaged streamlines, Reynolds Shear Stress and Turbulent Kinetic Energy concentrations. The permeable plate was made of a chrome-nickel screen having a porosity value of β=0.6 and it was attached on the cylinder surface along its midspan. Five different angles were given to the plate (θ=0°, 15°, 30°, 45°, 60°) with respect to the centerline of the cylinder in order to examine its effect on the flow control. It was shown that the permeable plate is effective on elongating the vortex formation length and reducing the fluctuations in the wake region. Compared to the plain cylinder, the reductions in the values of maximum Reynolds shear stress and Turbulent Kinetic Energy were evaluated as 72.5% and 66%, respectively for the plate angles of θ=45° and 60° which were also found to be suggested for applications concerning the vortex shedding and consequent Vortex-Induced Vibrations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bluff%20body" title="bluff body">bluff body</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20control" title=" flow control"> flow control</a>, <a href="https://publications.waset.org/abstracts/search?q=permeable%20plate" title=" permeable plate"> permeable plate</a>, <a href="https://publications.waset.org/abstracts/search?q=PIV" title=" PIV"> PIV</a>, <a href="https://publications.waset.org/abstracts/search?q=VIV" title=" VIV"> VIV</a>, <a href="https://publications.waset.org/abstracts/search?q=vortex%20shedding" title=" vortex shedding"> vortex shedding</a> </p> <a href="https://publications.waset.org/abstracts/9062/flow-control-around-bluff-bodies-by-attached-permeable-plates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9062.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">360</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> Effect of Ultrasonic Treatment on the Suspension Stability, Zeta Potential and Contact Angle of Celestite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kiraz%20Esmeli">Kiraz Esmeli</a>, <a href="https://publications.waset.org/abstracts/search?q=Alper%20Ozkan"> Alper Ozkan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, firstly, the effect of ultrasonic treatment on the stability of celestite suspension was investigated. In this context, the variations of the suspension stability with ultrasonic power, treatment time, immersion depth of ultrasonic probe, and treatment regime (batch and continuous) were determined. The experimental results showed that the suspension stability and zeta potential of celestite decreased with ultrasonic treatment. Also, the treatment time, immersion depth of probe, and treatment regime affected the stability of celestite suspension. Secondly, the effect of pre-treatment of the suspension with the ultrasonic process on the shear flocculation of celestite using sodium dodecyl sulfate (SDS) was studied and the variations of the flocculation, zeta potential, and contact angle of the mineral with SDS concentration were presented. It was found that the ultrasonic pre-treatment slightly improved the shear flocculation of celestite particles in accordance with the increase in the contact angles. In addition, the ultrasonic process again relatively reduced the magnitude of the negative potential of celestite particles in the presence of SDS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=celestite" title="celestite">celestite</a>, <a href="https://publications.waset.org/abstracts/search?q=contact%20angle" title=" contact angle"> contact angle</a>, <a href="https://publications.waset.org/abstracts/search?q=suspension%20stability" title=" suspension stability"> suspension stability</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasonic%20treatment" title=" ultrasonic treatment"> ultrasonic treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=zeta%20potential" title=" zeta potential"> zeta potential</a> </p> <a href="https://publications.waset.org/abstracts/89475/effect-of-ultrasonic-treatment-on-the-suspension-stability-zeta-potential-and-contact-angle-of-celestite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89475.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">226</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> Effect of Particle Size on Sintering Characteristics of Injection Molded 316L Powder</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20%C3%96zkan%20G%C3%BClsoy">H. Özkan Gülsoy</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonyraj%20Arockiasamy"> Antonyraj Arockiasamy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The application of powder injection molding technology for the fabrication of metallic and non-metallic components is of growing interest as the process considerably saves time and cost. Utilizing this fabrication method, full dense components are being prepared in various sizes. In this work, our effort is focused to study the densification behavior of the parts made using different size 316L stainless steel powders. The metal powders were admixed with an adequate amount of polymeric compounds and molded as standard tensile bars. Solvent and thermal debinding was carried out followed by sintering in ultra pure hydrogen atmosphere based on the differential scanning calorimetry (DSC) cycle. Mechanical property evaluation and microstructural characterization of the sintered specimens was performed using universal Instron tensile testing machine, Vicker’s microhardness tester, optical (OM) and scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction were used. The results are compared and analyzed to predict the strength and weakness of the test conditions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=powder%20injection%20molding" title="powder injection molding">powder injection molding</a>, <a href="https://publications.waset.org/abstracts/search?q=sintering" title=" sintering"> sintering</a>, <a href="https://publications.waset.org/abstracts/search?q=particle%20size" title=" particle size"> particle size</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steels" title=" stainless steels"> stainless steels</a> </p> <a href="https://publications.waset.org/abstracts/35017/effect-of-particle-size-on-sintering-characteristics-of-injection-molded-316l-powder" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35017.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">37</span> Assessment of the Tectonic Effects on Soil Radon Activity along the Margin of the Arabian Plate Boundary in Northwestern Syria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Al-Hilal">Mohamed Al-Hilal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main purpose of the present study is to assess the role of active tectonics in influencing the emanation level of soil radon across two tectonically active structures of the Northern Dead Sea Fault (NDSF) in northwestern Syria: namely, the Qastoon and Al-Harif fault segments. The radon measurements were basically directed by the results drawn from earlier studies of archaeoseismic and paleoseismic investigation in Al-Harif, besides integrated geophysical and morphotectonic survey at the Qastoon site. In view of that, a total of 80 soil gas radon points were measured in this work with a sampling depth of 75 cm, using the AlphaGUARD PQ 2000Pro radon detector. The background range of normal radon emission from local soil was determined in area located away from the influence of the tectonic disturbances. The obtained radon data were statistically analyzed, and the mean values have been standardized in terms of probability of magnitude, which enhances the comparison process and so facilitating the separation of normal radon variations from other anomalous or geotectonic related values. The overall results revealed remarkable occurrences of fault-associated radon anomalies with maximum peak values of ~6 to 7 times above the background, trending in accordance with the predicted traces of the fault ruptures at the Qastoon and Al-Harif, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=soil%20gas%20radon" title="soil gas radon">soil gas radon</a>, <a href="https://publications.waset.org/abstracts/search?q=active%20tectonic%20structure" title=" active tectonic structure"> active tectonic structure</a>, <a href="https://publications.waset.org/abstracts/search?q=northern%20dead%20sea%20fault" title=" northern dead sea fault"> northern dead sea fault</a>, <a href="https://publications.waset.org/abstracts/search?q=western%20Syria" title=" western Syria"> western Syria</a> </p> <a href="https://publications.waset.org/abstracts/140434/assessment-of-the-tectonic-effects-on-soil-radon-activity-along-the-margin-of-the-arabian-plate-boundary-in-northwestern-syria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140434.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">175</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">36</span> Performance of Shariah-Based Investment: Evidence from Pakistani Listed Firms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohsin%20Sadaqat">Mohsin Sadaqat</a>, <a href="https://publications.waset.org/abstracts/search?q=Hilal%20Anwar%20Butt"> Hilal Anwar Butt</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Following the stock selection guidelines provided by the Sharia Board (SB), we segregate the firms listed at Pakistan Stock Exchange (PSX) into Sharia Compliant (SC) and Non-Sharia Compliant (NSC) stocks. Subsequently, we form portfolios within each group based on market capitalization and volatility. The purpose is to analyze and compare the performance of these two groups as the SC stocks have lesser diversification opportunities due to SB restrictions. Using data ranging from January 2004 until June 2016, our results indicate that in most of the cases the risk-adjusted returns (alphas) for the returns differential between SC and NCS firms are positive. In addition, the SC firms in comparison to their counterparts in PSX provides excess returns that are hedged against the market, size, and value-based systematic risks factors. Overall, these results reconcile with one prevailing notion that the SC stocks that have lower financial leverage and higher investment in real assets are lesser exposed to market-based risks. Further, the SC firms that are more capitalized and less volatile, perform better than lower capitalized and higher volatile SC and NSC firms. To sum up our results, we do not find any substantial evidence for opportunity loss due to limited diversification opportunities in case of SC firms. To optimally utilize scarce resources, investors should consider SC firms as a candidate in portfolio construction. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diversification" title="diversification">diversification</a>, <a href="https://publications.waset.org/abstracts/search?q=performance" title=" performance"> performance</a>, <a href="https://publications.waset.org/abstracts/search?q=sharia%20compliant%20stocks" title=" sharia compliant stocks"> sharia compliant stocks</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20adjusted%20returns" title=" risk adjusted returns"> risk adjusted returns</a> </p> <a href="https://publications.waset.org/abstracts/85535/performance-of-shariah-based-investment-evidence-from-pakistani-listed-firms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85535.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span 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