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Esmen</title> <meta name="description" content="Search results for: Osman Esmen"> <meta name="keywords" content="Osman Esmen"> <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="Osman Esmen" 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="Osman Esmen"> <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> 131</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Osman Esmen</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">131</span> The Role of Strategic Flexibility for Achieving Sustainable Competition Advantage and Its Effect on Business Performance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kemalettin%20Eryesil">Kemalettin Eryesil</a>, <a href="https://publications.waset.org/abstracts/search?q=Osman%20Esmen"> Osman Esmen</a>, <a href="https://publications.waset.org/abstracts/search?q=Aykut%20Beduk"> Aykut Beduk</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, it has been studied to determine the relationship between business performance and strategic flexibility, which is defined to be the strategic choice that provides the ability of rapidly responding the changes of the dynamic environment of the companies, for having competitive advantages. In this context a field study has been conducted over 56 companies, which are active in informatics and electronics sectors in TEKNOKENT. As a result of the study it has been determined that; strategic flexibility has an effect on business performance and there is a positive and statistically significant relationship between strategic flexibility and business performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sustainable%20competition%20advantage" title="sustainable competition advantage">sustainable competition advantage</a>, <a href="https://publications.waset.org/abstracts/search?q=strategic%20flexibility" title=" strategic flexibility"> strategic flexibility</a>, <a href="https://publications.waset.org/abstracts/search?q=firm%20performance" title=" firm performance"> firm performance</a>, <a href="https://publications.waset.org/abstracts/search?q=TEKNOKENT" title=" TEKNOKENT"> TEKNOKENT</a> </p> <a href="https://publications.waset.org/abstracts/37908/the-role-of-strategic-flexibility-for-achieving-sustainable-competition-advantage-and-its-effect-on-business-performance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37908.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">382</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">130</span> The Effect of Organizational Commitment and Burn out on Organizational Cynicism: A Field Study in the Healthcare Industry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aykut%20Bed%C3%BCk">Aykut Bedük</a>, <a href="https://publications.waset.org/abstracts/search?q=Kemalettin%20Erye%C5%9Fil"> Kemalettin Eryeşil</a>, <a href="https://publications.waset.org/abstracts/search?q=Osman%20E%C5%9Fmen"> Osman Eşmen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this study is to examine the relationship between organizational commitment which is defined as a strong belief in and acceptance of the organization’s goals and values, and burnout syndrome and organizational cynicism. Accordingly, a field research based on survey method was conducted on the employees of a health institution operating in the province of Konya. The findings of the research show that there is a positive statistically significant relationship between organizational cynicism and burnout while there is a negative statistically significant relationship between organizational commitment and burnout. Furthermore, it has been also realized that there is a negative and statistically significant relationship between organizational commitment and organizational cynicism. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=burnout" title="burnout">burnout</a>, <a href="https://publications.waset.org/abstracts/search?q=organizational%20commitment" title=" organizational commitment"> organizational commitment</a>, <a href="https://publications.waset.org/abstracts/search?q=organizational%20cynicism" title=" organizational cynicism"> organizational cynicism</a>, <a href="https://publications.waset.org/abstracts/search?q=healthcare%20management" title=" healthcare management"> healthcare management</a> </p> <a href="https://publications.waset.org/abstracts/38078/the-effect-of-organizational-commitment-and-burn-out-on-organizational-cynicism-a-field-study-in-the-healthcare-industry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38078.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">277</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">129</span> Eco-Entrepreneurship: Practice Examples both in the World and Turkey</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=O.%20Esmen">O. Esmen</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Beduk"> A. Beduk</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Eryesil"> K. Eryesil</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Karacelebi"> F. Karacelebi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Entrepreneurship is crucial for the economy of countries in development of economy, creating new jobs and increasing employment; therefore improving welfare and a modern point of view in the society. In the development of a country encouragement of entrepreneurship and entrepreneurial qualities also play a paramount role. The increase in the world population results in more production, which brings excessive use of resources and inevitably shortage of them. In addition to this; development in technology, mismanagement in production and deficiency of waste system cause negative effects on the environmental ecological balance. Nowadays, with the societies getting awareness of environment while buying products and services, they prefer companies which are careful about environment. And as a result of this, ecoentrepreneurship gains importance. In this study; ecoentrepreneurship, which we think will gain more importance in the world and Turkey, is presented with the examples from the world and Turkey. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ecoentrepreneurship" title="ecoentrepreneurship">ecoentrepreneurship</a>, <a href="https://publications.waset.org/abstracts/search?q=entrepreneurship" title=" entrepreneurship"> entrepreneurship</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20awareness" title=" environmental awareness"> environmental awareness</a>, <a href="https://publications.waset.org/abstracts/search?q=development%20of%20economy" title=" development of economy"> development of economy</a> </p> <a href="https://publications.waset.org/abstracts/37905/eco-entrepreneurship-practice-examples-both-in-the-world-and-turkey" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37905.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">261</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">128</span> A Research to Determine the Impact of Mobbing on Organizational Commitment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20Bed%C3%BCk">A. Bedük</a>, <a href="https://publications.waset.org/abstracts/search?q=k.%20Erye%C5%9Fil"> k. Eryeşil</a>, <a href="https://publications.waset.org/abstracts/search?q=o.%20E%C5%9Fmen"> o. Eşmen</a>, <a href="https://publications.waset.org/abstracts/search?q=m.%20Onacak"> m. Onacak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The mobbing is a process that is consisting of negative behaviors such as, systematically and continuously insulting, offending against personal dignity, preventing access to necessary information and disseminating rumors against employee by one or more than one individuals in a work environment through which disturbing the employee physically, psychologically and socially to cause to quit his/her job. This research is aiming to explore the results of mobbing (psychological violence) on employees’ organizational commitment in workplaces. Mobbing takes many forms and is often used to force an employee to leave the work environment. Two different types of scales have been reviewed and revised for use in the research. The Heinz Leymann scale is the first measure, which was developed to define causes and effects, in addition to characteristic behaviors of mobbing. The second scale was developed by Allen and Mayer and indicates levels of organizational commitment. In this research, a questionnaire were applied to 50 employees in a special glass factory in Konya to search mobbing itself and indicate the effects of mobbing to organizational commitments. One of the important findings of this research is that there was no relation between mobbing and general organizational commitment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mobbing" title="mobbing">mobbing</a>, <a href="https://publications.waset.org/abstracts/search?q=organizational%20commitment" title=" organizational commitment"> organizational commitment</a>, <a href="https://publications.waset.org/abstracts/search?q=affective%20commitment" title=" affective commitment"> affective commitment</a>, <a href="https://publications.waset.org/abstracts/search?q=normative%20commitment" title=" normative commitment"> normative commitment</a>, <a href="https://publications.waset.org/abstracts/search?q=continuance%20commitment" title=" continuance commitment"> continuance commitment</a> </p> <a href="https://publications.waset.org/abstracts/37909/a-research-to-determine-the-impact-of-mobbing-on-organizational-commitment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37909.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">227</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">127</span> Two Degree of Freedom Spherical Mechanism Design for Exact Sun Tracking</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osman%20Acar">Osman Acar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sun tracking systems are the systems following the sun ray by a right angle or by predetermined certain angle. In this study, we used theoretical trajectory of sun for latitude of central Anatolia in Turkey. A two degree of freedom spherical mechanism was designed to have a large workspace able to follow the sun's theoretical motion by the right angle during the whole year. An inverse kinematic analysis was generated to find the positions of mechanism links for the predicted trajectory. Force and torque analysis were shown for the first day of the year. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sun%20tracking" title="sun tracking">sun tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=theoretical%20sun%20trajectory" title=" theoretical sun trajectory"> theoretical sun trajectory</a>, <a href="https://publications.waset.org/abstracts/search?q=spherical%20mechanism" title=" spherical mechanism"> spherical mechanism</a>, <a href="https://publications.waset.org/abstracts/search?q=inverse%20kinematic%20analysis" title=" inverse kinematic analysis"> inverse kinematic analysis</a> </p> <a href="https://publications.waset.org/abstracts/37062/two-degree-of-freedom-spherical-mechanism-design-for-exact-sun-tracking" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37062.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">419</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">126</span> Catalytic Combustion of Methane over Co/Mo and Co/Mn Catalysts at Low Temperature</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20I.%20Osman">Ahmed I. Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Jehad%20K.%20Abu-Dahrieh"> Jehad K. Abu-Dahrieh</a>, <a href="https://publications.waset.org/abstracts/search?q=Jillian%20M.%20Thompson"> Jillian M. Thompson</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20W.%20Rooney"> David W. Rooney</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Natural gas (the main constituent is Methane 95%) is considered as an alternative to petroleum for the production of synthetics fuels. Nowadays, methane combustion at low temperature has received much attention however; it is the most difficult hydrocarbon to be combusted. Co/Mo and (4:1 wt/wt) catalysts were prepared from a range of different precursors and used for the low temperature total methane oxidation (TMO). The catalysts were characterized by, XRD, BET and H2-TPR and tested under reaction temperatures of 250-400 °C with a GHSV= 36,000 mL g-1 h-1. It was found that the combustion temperature was dependent on the type of the precursor, and that those containing chloride led to catalysts with lower activity. The optimum catalyst was Co/Mo (4:1wt/wt) where greater than 20% methane conversion was observed at 250 °C. This catalyst showed a high degree of stability for TMO, showing no deactivation during 50 hours of time on stream. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=methane%20low%20temperature%20total%20oxidation" title="methane low temperature total oxidation">methane low temperature total oxidation</a>, <a href="https://publications.waset.org/abstracts/search?q=oxygen%20carrier" title=" oxygen carrier"> oxygen carrier</a>, <a href="https://publications.waset.org/abstracts/search?q=Co%2FMo" title=" Co/Mo"> Co/Mo</a>, <a href="https://publications.waset.org/abstracts/search?q=Co%2FMn" title=" Co/Mn"> Co/Mn</a> </p> <a href="https://publications.waset.org/abstracts/23021/catalytic-combustion-of-methane-over-como-and-comn-catalysts-at-low-temperature" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23021.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">544</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">125</span> Experimental Study on Drying Parameters of Freeze Drying Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Osman%20Sui%C3%A7mez">Ali Osman Suiçmez</a>, <a href="https://publications.waset.org/abstracts/search?q=Emrah%20Deniz"> Emrah Deniz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, control experiments were made on a freeze drying system of which were built a prototype. In experiments, apple slices in different geometrical shapes were dried and drying curves were gained. Then, the shapes which were the fastest for drying were determined. Twenty samples for each apple shapes were put in the prototype and dried. After the experiments, the humidity ratio of the samples and water activity values of the samples have been obtained. Obtained results show that the prototype is working and by comparing the results the shape which dried fastest was determined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=freeze%20drying" title="freeze drying">freeze drying</a>, <a href="https://publications.waset.org/abstracts/search?q=vacuum" title=" vacuum"> vacuum</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20consumption" title=" energy consumption"> energy consumption</a>, <a href="https://publications.waset.org/abstracts/search?q=drying%20process" title=" drying process"> drying process</a>, <a href="https://publications.waset.org/abstracts/search?q=apple" title=" apple"> apple</a> </p> <a href="https://publications.waset.org/abstracts/61882/experimental-study-on-drying-parameters-of-freeze-drying-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61882.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">279</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">124</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">123</span> The Experiences of Secondary School Students in History Lessons in Distance and Formal Education</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osman%20Okumu%C5%9F">Osman Okumuş</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The pandemic has significantly affected every aspect of life. Especially in recenttimes, as a result of this effect, we have come closer to technology. Distance education has taken the place of formal education rather than supporting formal education. Thiscreatednewexperiencesforbothteachersandstudents. This research focused on revealing the experiences of the same students in distance and formal education, especially in history lessons. In the study, which was designed as a case study, 20 students were interviewed through a semi-structured interview form prepared by the researcher. The results show that both learning environments provide students with important experiences. However, despite the fact that the students developed their digital competencies and experienced different learning environments, they focused on formal education in the name of socialization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=history%20lessons" title="history lessons">history lessons</a>, <a href="https://publications.waset.org/abstracts/search?q=distance%20education" title=" distance education"> distance education</a>, <a href="https://publications.waset.org/abstracts/search?q=pandemic." title=" pandemic."> pandemic.</a>, <a href="https://publications.waset.org/abstracts/search?q=formal%20education" title=" formal education"> formal education</a> </p> <a href="https://publications.waset.org/abstracts/156204/the-experiences-of-secondary-school-students-in-history-lessons-in-distance-and-formal-education" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156204.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">100</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">122</span> Characterization of Graphene Oxide Coated Gold Electrodes for Bioimpedance Measurements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fatma%20G%C3%BClden%20%C5%9Ei%CC%87m%C5%9Fek">Fatma Gülden Şi̇mşek</a>, <a href="https://publications.waset.org/abstracts/search?q=Osman%20Meli%CC%87h%20Can"> Osman Meli̇h Can</a>, <a href="https://publications.waset.org/abstracts/search?q=Mehmet%20Yumak"> Mehmet Yumak</a>, <a href="https://publications.waset.org/abstracts/search?q=Bora%20Gari%CC%87pcan"> Bora Gari̇pcan</a>, <a href="https://publications.waset.org/abstracts/search?q=Yekta%20%C3%9Clgen"> Yekta Ülgen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the impedance spectroscopy is used as a detection tool in order to characterize surface coating with graphene oxide. Gold electrodes are produced by standard lithography procedures and then coated with graphene oxide using self-assembly method. The impedance of redox solution through bare gold electrodes and graphene oxide coated gold electrodes is measured in the low and high frequency range. The graphene oxide coating reduces the impedance value of the gold electrode and this reduction is distinguishable in the low-frequency range. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioimpedance" title="bioimpedance">bioimpedance</a>, <a href="https://publications.waset.org/abstracts/search?q=electrode%20characterization" title=" electrode characterization"> electrode characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=graphene%20oxide" title=" graphene oxide"> graphene oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=gold%20electrodes" title=" gold electrodes"> gold electrodes</a>, <a href="https://publications.waset.org/abstracts/search?q=impedance%20spectroscopy" title=" impedance spectroscopy"> impedance spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/47355/characterization-of-graphene-oxide-coated-gold-electrodes-for-bioimpedance-measurements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47355.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">541</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">121</span> Cutting Tools in Finishing Operations for CNC Rapid Manufacturing Processes: Experimental Studies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20N.%20Osman%20Zahid">M. N. Osman Zahid</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Case"> K. Case</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Watts"> D. Watts</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper reports an advanced approach in the application of CNC machining for rapid manufacturing processes (CNC-RM). The aim of this study is to improve the quality of machined parts by introducing different cutting tools during finishing operations. As the cutting is performed in different directions, the surfaces presented on part can be classified into several categories. Therefore, suitable cutting tools are assigned to machine particular surfaces and to improve the quality. Experimental studies have been carried out by fabricating several parts based on the suggested approach. The results provide further support for implementing this approach in rapid machining processes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CNC%20machining" title="CNC machining">CNC machining</a>, <a href="https://publications.waset.org/abstracts/search?q=end%20mill%20tool" title=" end mill tool"> end mill tool</a>, <a href="https://publications.waset.org/abstracts/search?q=finishing%20operation" title=" finishing operation"> finishing operation</a>, <a href="https://publications.waset.org/abstracts/search?q=rapid%20manufacturing" title=" rapid manufacturing"> rapid manufacturing</a> </p> <a href="https://publications.waset.org/abstracts/10148/cutting-tools-in-finishing-operations-for-cnc-rapid-manufacturing-processes-experimental-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10148.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">346</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">120</span> Enhancing Human Security Through Conmprehensive Counter-terrorism Measures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alhaji%20Khuzaima%20Mohammed%20Osman">Alhaji Khuzaima Mohammed Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Zaeem%20Sheikh%20Abdul%20Wadudi%20Haruna"> Zaeem Sheikh Abdul Wadudi Haruna</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article aims to explore the crucial link between counter-terrorism efforts and the preservation of human security. As acts of terrorism continue to pose significant threats to societies worldwide, it is imperative to develop effective strategies that mitigate risks while safeguarding the rights and well-being of individuals. This paper discusses key aspects of counter-terrorism and human security, emphasizing the need for a comprehensive approach that integrates intelligence, prevention, response, and resilience-building measures. By highlighting successful case studies and lessons learned, this article provides valuable insights for policymakers, law enforcement agencies, and practitioners in their quest to address terrorism and foster human security. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20security" title="human security">human security</a>, <a href="https://publications.waset.org/abstracts/search?q=risk%20mitigation" title=" risk mitigation"> risk mitigation</a>, <a href="https://publications.waset.org/abstracts/search?q=terrorist%20activities" title=" terrorist activities"> terrorist activities</a>, <a href="https://publications.waset.org/abstracts/search?q=civil%20liberties" title=" civil liberties"> civil liberties</a> </p> <a href="https://publications.waset.org/abstracts/171362/enhancing-human-security-through-conmprehensive-counter-terrorism-measures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171362.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">119</span> Electromyography Activity of the Lower Limb Muscles during Prostration and Squat Exercise</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20K.%20Mohd%20Safee">M. K. Mohd Safee</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20A.%20B.%20Wan%20Abas"> W. A. B. Wan Abas</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Ibrahim"> F. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Abu%20Osman"> N. A. Abu Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Abdul%20Malik"> N. A. Abdul Malik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the activity of the rectus femoris (RF) and biceps femoris (BF) in healthy subjects during salat (prostration) and specific exercise (squat exercise) using electromyography (EMG). A group of undergraduates aged between 19 to 25 years voluntarily participated in this study. The myoelectric activity of the muscles were recorded and analyzed. The finding indicated that there were contractions of the muscles during the salat and exercise with almost same EMG’s level. From the result, Wilcoxon’s Rank Sum test showed significant difference between prostration and squat exercise (p < 0.05) but the differences was very small; RF (8.63% MVC) and BF (11.43% MVC). Therefore, salat may be useful in strengthening exercise and also in rehabilitation programs for lower limb activities. This pilot study conducted initial research into the bio mechanical responses of human muscles in various positions of salat. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electromyography" title="electromyography">electromyography</a>, <a href="https://publications.waset.org/abstracts/search?q=exercise" title=" exercise"> exercise</a>, <a href="https://publications.waset.org/abstracts/search?q=muscle" title=" muscle"> muscle</a>, <a href="https://publications.waset.org/abstracts/search?q=salat" title=" salat"> salat</a> </p> <a href="https://publications.waset.org/abstracts/21007/electromyography-activity-of-the-lower-limb-muscles-during-prostration-and-squat-exercise" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21007.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">711</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">118</span> Review of Literature: Using Technology to Help Language Learners at Improving Their Language Skills</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eyup%20Bayram%20Guzel">Eyup Bayram Guzel</a>, <a href="https://publications.waset.org/abstracts/search?q=Osman%20Tunc"> Osman Tunc</a> </p> <p class="card-text"><strong>Abstract:</strong></p> People have been fairly interested in what technology offers to them around a scope of human necessities and it has become a part of human life. In this study, experimental studies were reviewed for the purpose of how technology helps language learners improve their phonemic awareness, reading comprehension and vocabulary development skills. As a conclusion, experimental studies demonstrated that students showed significant improvements up to 70% in phonological awareness, while they demonstrated up to 76% of improvements in reading comprehension and up to 77% in vocabulary development. The use of computer-assisted technologies and its positive outcomes were encouraged to be used more widely in order to meet the diverse needs of students. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=technology" title="technology">technology</a>, <a href="https://publications.waset.org/abstracts/search?q=phonemic%20awareness" title=" phonemic awareness"> phonemic awareness</a>, <a href="https://publications.waset.org/abstracts/search?q=reading%20comprehension" title=" reading comprehension"> reading comprehension</a>, <a href="https://publications.waset.org/abstracts/search?q=vocabulary%20development" title=" vocabulary development"> vocabulary development</a> </p> <a href="https://publications.waset.org/abstracts/37148/review-of-literature-using-technology-to-help-language-learners-at-improving-their-language-skills" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37148.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">298</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">117</span> Electromyography Activity of the Rectus Femoris and Biceps Femoris Muscles during Prostration and Squat Exercise</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20K.%20Mohd%20Safee">M. K. Mohd Safee</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20A.%20B.%20Wan%20Abas"> W. A. B. Wan Abas</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Ibrahim"> F. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Abu%20Osman"> N. A. Abu Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A%20Abdul%20Malik"> N. A Abdul Malik</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the activity of the rectus femoris (RF) and biceps femoris (BF) in healthy subjects during salat (prostration) and specific exercise (squat exercise) using electromyography (EMG). A group of undergraduates aged between 19 to 25 years voluntarily participated in this study. The myoelectric activity of the muscles were recorded and analyzed. The finding indicated that there were contractions of the muscles during the salat and exercise with almost same EMG’s level. From the result, Wilcoxon’s Rank Sum test showed significant difference between prostration and squat exercise (p<0.05) but the differences was very small; RF (8.63%MVC) and BF (11.43%MVC). Therefore, salat may be useful in strengthening exercise and also in rehabilitation programs for lower limb activities. This pilot study conducted initial research into the biomechanical responses of human muscles in various positions of salat. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electromyography" title="electromyography">electromyography</a>, <a href="https://publications.waset.org/abstracts/search?q=exercise" title=" exercise"> exercise</a>, <a href="https://publications.waset.org/abstracts/search?q=muscle" title=" muscle"> muscle</a>, <a href="https://publications.waset.org/abstracts/search?q=salat" title=" salat"> salat</a> </p> <a href="https://publications.waset.org/abstracts/20982/electromyography-activity-of-the-rectus-femoris-and-biceps-femoris-muscles-during-prostration-and-squat-exercise" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20982.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">719</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">116</span> Effectiveness of Adopting Software Quality Frameworks in Software Organizations: A Qualitative Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sarah%20K.%20Amer">Sarah K. Amer</a>, <a href="https://publications.waset.org/abstracts/search?q=Nagwa%20Badr"> Nagwa Badr</a>, <a href="https://publications.waset.org/abstracts/search?q=Osman%20Ibrahim"> Osman Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Hamad"> Ahmed Hamad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper surveys the effectiveness of software process quality assurance frameworks, with some focus on Capability Maturity Model Integration (CMMI) - a framework that has become widely adopted in software organizations. The importance of quality improvement in software development, and the differences in the outcomes of quality framework implementation between Middle Eastern and North African (MENA-region) countries and non-MENA-region countries are discussed. The greatest challenges met in the MENA region are identified, with particular focus on Egypt and its rising software development industry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=software%20quality" title="software quality">software quality</a>, <a href="https://publications.waset.org/abstracts/search?q=software%20process%20improvement" title=" software process improvement"> software process improvement</a>, <a href="https://publications.waset.org/abstracts/search?q=software%20development%20methodologies" title=" software development methodologies"> software development methodologies</a>, <a href="https://publications.waset.org/abstracts/search?q=capability%20maturity%20model%20integration" title=" capability maturity model integration"> capability maturity model integration</a> </p> <a href="https://publications.waset.org/abstracts/54810/effectiveness-of-adopting-software-quality-frameworks-in-software-organizations-a-qualitative-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54810.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">354</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">115</span> Flowing Online Vehicle GPS Data Clustering Using a New Parallel K-Means Algorithm</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Orhun%20Vural">Orhun Vural</a>, <a href="https://publications.waset.org/abstracts/search?q=Oguz%20%20Bayat"> Oguz Bayat</a>, <a href="https://publications.waset.org/abstracts/search?q=Rustu%20Akay"> Rustu Akay</a>, <a href="https://publications.waset.org/abstracts/search?q=Osman%20N.%20Ucan"> Osman N. Ucan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study presents a new parallel approach clustering of GPS data. Evaluation has been made by comparing execution time of various clustering algorithms on GPS data. This paper aims to propose a parallel based on neighborhood K-means algorithm to make it faster. The proposed parallelization approach assumes that each GPS data represents a vehicle and to communicate between vehicles close to each other after vehicles are clustered. This parallelization approach has been examined on different sized continuously changing GPS data and compared with serial K-means algorithm and other serial clustering algorithms. The results demonstrated that proposed parallel K-means algorithm has been shown to work much faster than other clustering algorithms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=parallel%20k-means%20algorithm" title="parallel k-means algorithm">parallel k-means algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=parallel%20clustering" title=" parallel clustering"> parallel clustering</a>, <a href="https://publications.waset.org/abstracts/search?q=clustering%20algorithms" title=" clustering algorithms"> clustering algorithms</a>, <a href="https://publications.waset.org/abstracts/search?q=clustering%20on%20flowing%20data" title=" clustering on flowing data"> clustering on flowing data</a> </p> <a href="https://publications.waset.org/abstracts/86622/flowing-online-vehicle-gps-data-clustering-using-a-new-parallel-k-means-algorithm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86622.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">221</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">114</span> The Impact of COVID-19 Pandemic on Educators in South Africa: Self-Efficacy and Anxiety</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mostert%20Jacques">Mostert Jacques</a>, <a href="https://publications.waset.org/abstracts/search?q=Gulseven%20Osman"> Gulseven Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Williams%20Courtney"> Williams Courtney</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Covid-19 pandemic caused unparalleled disruption in the lives of the majority of the world. This included school closures and introduction of Online Learning. In this article we investigated the impact of distance learning on the self-efficacy and anxiety levels experienced by educators in South Africa. We surveyed 60 respondents from Independent Schools using a Likert Scale rating of 0 to 4. The results suggested that despite experiencing moderate anxiety, educators showed a sense of high self-efficacy during distance learning. This was specifically true for those with underlying health concerns. There was no significant difference between how the different genders experienced anxiety and self-efficacy. Further research into the impact on learners’ anxiety levels during distance learning will provide policymakers and educators with a better understanding of how the use of technology is influencing the effectiveness of teaching, learning, and assessment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=COVID-19" title="COVID-19">COVID-19</a>, <a href="https://publications.waset.org/abstracts/search?q=education" title=" education"> education</a>, <a href="https://publications.waset.org/abstracts/search?q=self-efficacy" title=" self-efficacy"> self-efficacy</a>, <a href="https://publications.waset.org/abstracts/search?q=anxiety" title=" anxiety"> anxiety</a> </p> <a href="https://publications.waset.org/abstracts/141300/the-impact-of-covid-19-pandemic-on-educators-in-south-africa-self-efficacy-and-anxiety" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141300.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">205</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">113</span> Impact of Egypt’s Energy Demand on Oil and Gas Power Systems Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Moustafa%20Osman%20Mohamed"> Moustafa Osman Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper will explore the influence of energy sector in Arab Republic of Egypt which has shared its responsibilities of many environmental challenges as the second largest economy in the Middle East (after Iran). Air and water pollution, desertification, inadequate disposal of solid waste and damage to coral reefs are serious problems that influence environmental management in Egypt. The intensive reliance of high population density and strong industrial growth are wearing Egypt's resources, and the rapidly-growing population has forced Egypt to breakdown agricultural land to residential and relevant use of commercial ingestion. The depletion effects of natural resources impose the government to apply innovation techniques in emission control and focus on sustainability. The cogeneration will be presented to control thermal losses and increase efficiency of energy power system. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cogeneration" title="cogeneration">cogeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20management" title=" environmental management"> environmental management</a>, <a href="https://publications.waset.org/abstracts/search?q=power%20electricity" title=" power electricity"> power electricity</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20indicators" title=" energy indicators"> energy indicators</a> </p> <a href="https://publications.waset.org/abstracts/53116/impact-of-egypts-energy-demand-on-oil-and-gas-power-systems-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53116.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">274</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">112</span> Effect of Nano-CaCO₃ Addition on the Nano-Mechanical Properties of Cement Paste</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muzeyyen%20Balcikanli">Muzeyyen Balcikanli</a>, <a href="https://publications.waset.org/abstracts/search?q=Selma%20Ozaslan"> Selma Ozaslan</a>, <a href="https://publications.waset.org/abstracts/search?q=Osman%20Sahin"> Osman Sahin</a>, <a href="https://publications.waset.org/abstracts/search?q=Burak%20Uzal"> Burak Uzal</a>, <a href="https://publications.waset.org/abstracts/search?q=Erdogan%20Ozbay"> Erdogan Ozbay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study, the effect of nano-CaCO3 replacement with cement on the nano-mechanical properties of cement paste was investigated. Hydrophobic and hydrophilic characteristics Two types of nano CaCO3 were replaced with Portland cement at 0, 0.5 and 1%. Water to (cement+nano-CaCO3) ratio was kept constant at 0.5 for all mixtures. 36 indentations were applied on each cement paste, and the values of nano-hardness and elastic modulus of cement pastes were determined from the indentation depth-load graphs. Then, by getting the average of them, nano-hardness and elastic modulus were identified for each mixture. Test results illustrate that replacement of hydrophilic n-CaCO3 with cement lead to a significant increase in nano-mechanical properties, however, replacement of hydrophobic n-CaCO3 with cement worsened the nano-mechanical properties considerably. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanoindenter" title="nanoindenter">nanoindenter</a>, <a href="https://publications.waset.org/abstracts/search?q=CaCO3" title=" CaCO3"> CaCO3</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-hardness" title=" nano-hardness"> nano-hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=nano-mechanical%20properties" title=" nano-mechanical properties"> nano-mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/54618/effect-of-nano-caco3-addition-on-the-nano-mechanical-properties-of-cement-paste" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/54618.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">287</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">111</span> Design of Soil Replacement under Axial Centric Load Isolated Footing by Limit State Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emad%20A.%20M.%20Osman">Emad A. M. Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20M.%20Abu-Bakr"> Ahmed M. Abu-Bakr</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Compacted granular fill under shallow foundation is one of the oldest, cheapest, and easiest techniques to improve the soil characteristics to increase the bearing capacity and decrease settlement under footing. There are three main factors affecting the design of soil replacement to gain these advantages. These factors are the type of replaced soil, characteristics, and thickness. The first two factors can be easily determined by laboratory and field control. This paper emphasizes on how to determine the thickness accurately for footing under centric axial load by limit state design method. The advantages of the method are the way of determining the thickness (independent of experience) and it takes into account the replaced and original or underneath soil characteristics and reaches the goals of replaced soils economically. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design%20of%20soil%20replacement" title="design of soil replacement">design of soil replacement</a>, <a href="https://publications.waset.org/abstracts/search?q=LSD%20method" title=" LSD method"> LSD method</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20replacement" title=" soil replacement"> soil replacement</a>, <a href="https://publications.waset.org/abstracts/search?q=soil%20improvement" title=" soil improvement"> soil improvement</a> </p> <a href="https://publications.waset.org/abstracts/37928/design-of-soil-replacement-under-axial-centric-load-isolated-footing-by-limit-state-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37928.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">351</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">110</span> Flame Dynamics in Small Scale Channels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Mahmoud%20Osman%20Ahmed">Mohammed Mahmoud Osman Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Akram%20Mohammad"> Akram Mohammad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Flame dynamics in heated quartz glass channels of various aspect ratios (2,5,10,15) were experimentally investigated. A premixed Propane-air mixture was used for the reported experiments. Regarding micro-combustion, flame quenching is considered to be the most crucial problem to overcome first. Experiments were carried out on four channels with different aspect ratios. The results show that at a very low equivalence ratio ϕ=0.4, there is no flame inside the channels. The FREI condition (Flame with repetitive extinction and ignition) was overcome by increasing velocity and by making the channels more in contact with the external heater. The flame tested inside the channels at different locations for V=0.3 m/s or higher below V=0.65 m/s. The effects of equivalence ratio and flow velocity on the characteristics of combustion in the channels were examined. Different ways of flame propagation were observed in the current investigations based on how they appear as planar, concave and convex flames. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flame%20stabilization" title="flame stabilization">flame stabilization</a>, <a href="https://publications.waset.org/abstracts/search?q=combustion" title=" combustion"> combustion</a>, <a href="https://publications.waset.org/abstracts/search?q=flame%20dynamics" title=" flame dynamics"> flame dynamics</a>, <a href="https://publications.waset.org/abstracts/search?q=small-scale%20channels" title=" small-scale channels"> small-scale channels</a>, <a href="https://publications.waset.org/abstracts/search?q=external%20heater" title=" external heater"> external heater</a> </p> <a href="https://publications.waset.org/abstracts/166106/flame-dynamics-in-small-scale-channels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166106.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">228</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">109</span> The Effect of Low Voltage Direct Current Applications on the Growth of Microalgae Chlorella Vulgaris</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osman%20K%C3%B6k">Osman Kök</a>, <a href="https://publications.waset.org/abstracts/search?q=I%CC%87lhami%CC%87%20T%C3%BCz%C3%BCn"> İlhami̇ Tüzün</a>, <a href="https://publications.waset.org/abstracts/search?q=Ya%C5%9Far%20Alu%C3%A7"> Yaşar Aluç</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was conducted to explore the effect of direct current (DC) applications on the growth of microalgae Chlorella vulgaris KKU71, isolated from highly saline freshwater. Experiments were implemented based upon the cross-combinations of both the intensity and duration of electric applications, generating a full factorial design of 10V, 20V, 30V, and 5s, 30s, 60s, respectively. Growth parameters of cultures were monitored on Optical Density (OD), Cell Count (CC), Chlorophyll-a, b (Chl-a, b), and Total Carotenoids (TCar). All DC-assisted treatments stimulated the growth and thus led to higher values of growth parameters such as OD, CC, Chl-a, and TCar. Monotonically increasing with the intensity and duration of DC applications, wet and dry biomass yields of the harvested algae reached their highest level at 30V-60s in all sets of treatments. In addition, this increase between DC applications was listed as C(control)<10V<20V<30V and C<5s<30s<60s. As a result, direct current applications increased the biomass. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chlorella%20Vulgaris" title="Chlorella Vulgaris">Chlorella Vulgaris</a>, <a href="https://publications.waset.org/abstracts/search?q=direct%20current" title=" direct current"> direct current</a>, <a href="https://publications.waset.org/abstracts/search?q=growth" title=" growth"> growth</a>, <a href="https://publications.waset.org/abstracts/search?q=biomass" title=" biomass"> biomass</a> </p> <a href="https://publications.waset.org/abstracts/149389/the-effect-of-low-voltage-direct-current-applications-on-the-growth-of-microalgae-chlorella-vulgaris" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/149389.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">138</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">108</span> Revisited: Financial Literacy and How University Students Fare</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zaiton%20Osman">Zaiton Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Phang%20Ing"> Phang Ing</a>, <a href="https://publications.waset.org/abstracts/search?q=Azaze%20Azizi%20Abd%20Adis"> Azaze Azizi Abd Adis</a>, <a href="https://publications.waset.org/abstracts/search?q=Izyanti%20Awg%20Razli"> Izyanti Awg Razli</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Rizwan%20Abd%20Majid"> Mohd Rizwan Abd Majid</a>, <a href="https://publications.waset.org/abstracts/search?q=Rosle%20Mohidin"> Rosle Mohidin </a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study is conducted to investigate the level of financial literacy among students taking Financial Management and Banking in Universiti Malaysia Sabah, Malaysia. Students are asked to answer basic financial literacy questions in their first class before study commence and the similar questions were given in their final week of study (after 14 weeks of study duration). The comparison on their level of financial literacy will be examined. This study is expected to yields the following findings; firstly, comparison of the level of financial literacy 'before and after' courses in finance being introduced can be revealed. Secondly, it will provide suggestion on improving the standard of teaching and learning in financial management and banking courses and lastly it will help in identifying financial courses that are important in improving the level of financial literacy among students in Malaysia. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=financial%20literacy" title="financial literacy">financial literacy</a>, <a href="https://publications.waset.org/abstracts/search?q=university%20students" title=" university students"> university students</a>, <a href="https://publications.waset.org/abstracts/search?q=personal%20financial%20planning" title=" personal financial planning"> personal financial planning</a>, <a href="https://publications.waset.org/abstracts/search?q=business%20and%20management%20engineering" title=" business and management engineering"> business and management engineering</a> </p> <a href="https://publications.waset.org/abstracts/23443/revisited-financial-literacy-and-how-university-students-fare" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23443.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">723</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">107</span> Investigation of the Effect of Grid Size on External Store Separation Trajectory Using CFD</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alaa%20A.%20Osman">Alaa A. Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Amgad%20M.%20Bayoumy%20Aly"> Amgad M. Bayoumy Aly</a>, <a href="https://publications.waset.org/abstracts/search?q=Ismail%20El%20baialy"> Ismail El baialy</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20E.%20Abdellatif"> Osama E. Abdellatif</a>, <a href="https://publications.waset.org/abstracts/search?q=Essam%20E.%20Khallil"> Essam E. Khallil</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a numerical simulation of a finned store separating from a wing-pylon configuration has been studied and validated. A dynamic unstructured tetrahedral mesh approach is accomplished by using three grid sizes to numerically solving the discretized three dimensional, inviscid and compressible Navier-stokes equations. The method used for computations of separation of an external store assuming quasi-steady flow condition. Computations of quasi-steady flow have been directly coupled to a six degree-of-freedom (6DOF) rigid-body motion code to generate store trajectories. The pressure coefficients at four different angular cuts and time histories of various trajectory parameters during the store separation are compared for every grid size with published experimental data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFD%20modelling" title="CFD modelling">CFD modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=transonic%20store%20separation" title=" transonic store separation"> transonic store separation</a>, <a href="https://publications.waset.org/abstracts/search?q=quasi-steady%20flow" title=" quasi-steady flow"> quasi-steady flow</a>, <a href="https://publications.waset.org/abstracts/search?q=moving-body%20trajectories" title=" moving-body trajectories"> moving-body trajectories</a> </p> <a href="https://publications.waset.org/abstracts/20045/investigation-of-the-effect-of-grid-size-on-external-store-separation-trajectory-using-cfd" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20045.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">390</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">106</span> Characterization and Properties of Novel Flame Retardants Based on s-Triazine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sameh%20M.%20Osman">Sameh M. Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=El-Refaie%20Kenawy"> El-Refaie Kenawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Zeid%20A.%20Al-Othman"> Zeid A. Al-Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20H.%20El-Newehy"> Mohamed H. El-Newehy</a>, <a href="https://publications.waset.org/abstracts/search?q=El-Saied%20A.%20Aly"> El-Saied A. Aly</a>, <a href="https://publications.waset.org/abstracts/search?q=Sherine%20N.%20Khattab"> Sherine N. Khattab</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayman%20El-Faham"> Ayman El-Faham</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, there has been a huge interest in using cyanuric chloride in a wide range of functional group transformations, as Cyanuric chloride has temperature-dependent differential reactivity for displacement of chlorides with various nucleophiles In the present work, some copolymers based on s-triazine Unit were prepared by microwave-assisted synthesis. For comparison study, the copolymers were synthesized by the conventional method. Synthesized Copolymers were characterized by MP, IR, TGA, DSC and GPC. The result indicated that copolymers are thermally stable and in good in composition and yield. Further studies that involve the test for selected removal of transition elements such as Cu (II), Zn (II) and Mn (II). Moreover, the effects of the polymeric triazine derivatives containing different functional groups which expected to have a good thermal stability and char formation ability on thermal degradation and flame retardancy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flame%20retardants" title="flame retardants">flame retardants</a>, <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals" title=" heavy metals"> heavy metals</a>, <a href="https://publications.waset.org/abstracts/search?q=microwave-assisted%20synthesis" title=" microwave-assisted synthesis"> microwave-assisted synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=s-triazine" title=" s-triazine"> s-triazine</a> </p> <a href="https://publications.waset.org/abstracts/38293/characterization-and-properties-of-novel-flame-retardants-based-on-s-triazine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38293.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">362</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">105</span> Determination of Weathering at Kilistra Ancient City by Using Non-Destructive Techniques, Central Anatolia, Turkey</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=%C4%B0smail%20%C4%B0nce">İsmail İnce</a>, <a href="https://publications.waset.org/abstracts/search?q=Osman%20G%C3%BCnaydin"> Osman Günaydin</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20%C3%96zer"> Fatma Özer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Stones used in the construction of historical structures are exposed to various direct or indirect atmospheric effects depending on climatic conditions. Building stones deteriorate partially or fully as a result of this exposure. The historic structures are important symbols of any cultural heritage. Therefore, it is important to protect and restore these historical structures. The aim of this study is to determine the weathering conditions at the Kilistra ancient city. It is located in the southwest of the Konya city, Central Anatolia, and was built by carving into pyroclastic rocks during the Byzantine Era. For this purpose, the petrographic and mechanical properties of the pyroclastic rocks were determined. In the assessment of weathering of structures in the ancient city, in-situ non-destructive testing (i.e., Schmidt hardness rebound value, relative humidity measurement) methods were applied. <p class="card-text"><strong>Keywords:</strong> <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=Kilistra%20ancient%20city" title=" Kilistra ancient city"> Kilistra ancient city</a>, <a href="https://publications.waset.org/abstracts/search?q=non-destructive%20techniques" title=" non-destructive techniques"> non-destructive techniques</a>, <a href="https://publications.waset.org/abstracts/search?q=weathering" title=" weathering"> weathering</a> </p> <a href="https://publications.waset.org/abstracts/63339/determination-of-weathering-at-kilistra-ancient-city-by-using-non-destructive-techniques-central-anatolia-turkey" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/63339.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">359</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">104</span> Microwave Assisted Synthesis and Metal Complexes of Some Copolymers Based on Itaconic Acid</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20H.%20El-Newehy">Mohamed H. El-Newehy</a>, <a href="https://publications.waset.org/abstracts/search?q=Sameh%20M.%20Osman"> Sameh M. Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Moamen%20S.%20Refat"> Moamen S. Refat</a>, <a href="https://publications.waset.org/abstracts/search?q=Salem%20S.%20Al-Deyab"> Salem S. Al-Deyab</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayman%20El-Faham"> Ayman El-Faham</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The two copolymers itaconic acid-methyl methacrylate and itaconic acid-acrylamide have been prepared in different ratio by radical copolymerization in the presence of azobisisobutyronitrile (AIBN) as initiator and using 2-butanone as reaction medium using microwave irradiation. The microwave technique is safe, fast, and gives high yield of the products with high purity in an optimum time, comparing to the traditional conventional heating. All the prepared copolymers were characterized by FT-IR, thermal analysis and elemental microanalysis. The itaconic acid-based copolymers showed a good sensitivity in alkaline media for scavenging Cu (II) and Pb (II). The chelation behavior of both Cu (II) and Pb (II) complexes were checked using FT-IR, thermogravimetric analysis (TGA), and differential scanning calorimetery (DSC). The infrared data are in a good agreement with the coordination through carboxylate-to-metal, in which the copolymers acting as a bidentate ligand. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=microwave%20synthesis" title="microwave synthesis">microwave synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=itaconic%20acid" title=" itaconic acid"> itaconic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=copolymerization" title=" copolymerization"> copolymerization</a>, <a href="https://publications.waset.org/abstracts/search?q=scavenging" title=" scavenging"> scavenging</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20stability" title=" thermal stability"> thermal stability</a> </p> <a href="https://publications.waset.org/abstracts/16998/microwave-assisted-synthesis-and-metal-complexes-of-some-copolymers-based-on-itaconic-acid" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16998.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">458</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">103</span> The Relationship between Brand Recall and Brand Attitude in Advergame</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azaze-Azizi%20Abdul%20Adis">Azaze-Azizi Abdul Adis</a>, <a href="https://publications.waset.org/abstracts/search?q=Hyung%20Jun%20Kim"> Hyung Jun Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Rizwan%20Abdul%20Majid"> Mohamad Rizwan Abdul Majid</a>, <a href="https://publications.waset.org/abstracts/search?q=Zaiton%20Osman"> Zaiton Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Izyanti%20Awang%20Razli"> Izyanti Awang Razli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The increase of online advertising, specifically advergame has become a popular method of strengthening consumer brand recognition by inserting attractive characters and enhancing entertainment value. There have been several remarkable studies on spokes-characters in advertising effectiveness. However, few studies have examined the link between character presence and consumers' brand recall and attitude in advergame. Moreover, how the entertainment value of an advergame influences brand recall and brand attitude and the mediating role of brand recall in influencing character presence and entertainment on brand attitude are still lacking in the advergaming literature. An online survey was conducted with 366 Malaysian gamers. Using structural equation modeling, the results showed that character presence had no influence but entertainment value had a positive influence on brand recall and brand attitude. This study confirmed the role of brand recall as a mediator of the effect of between entertainment and brand attitude in advergame. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=character%20presence" title="character presence">character presence</a>, <a href="https://publications.waset.org/abstracts/search?q=entertainment" title=" entertainment"> entertainment</a>, <a href="https://publications.waset.org/abstracts/search?q=brand%20recall" title=" brand recall"> brand recall</a>, <a href="https://publications.waset.org/abstracts/search?q=brand%20attitude" title=" brand attitude"> brand attitude</a>, <a href="https://publications.waset.org/abstracts/search?q=advergame" title=" advergame"> advergame</a> </p> <a href="https://publications.waset.org/abstracts/20513/the-relationship-between-brand-recall-and-brand-attitude-in-advergame" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20513.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">536</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">102</span> Production of Renewable and Clean Bio-Fuel (DME) from Biomethanol over Copper Modified Alumina Catalyst</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20I.%20Osman">Ahmed I. Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Jehad%20K.%20Abu-Dahrieh"> Jehad K. Abu-Dahrieh</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20W.%20Rooney"> David W. Rooney</a>, <a href="https://publications.waset.org/abstracts/search?q=Jillian%20Thompson"> Jillian Thompson</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effect of loading of copper on the catalytic performance of different alumina support during the dehydration of methanol to dimethyl ether (DME) was performed in a fixed bed reactor. There are two levels of loading; low loading (1, 2, 4 and 6% Cu wt/wt) and high loading (10 and 15% Cu wt/wt) on both AC350 (alumina catalyst calcined at 350) and AC550 (alumina catalyst calcined at 550), to study the effect of loading and the effect of the support during methanol dehydration to DME (MTD). The catalysts were characterized by TGA, XRD, BET, TPD-NH3, TEM and DRIFT-Pyridine. Under reaction conditions where the temperature ranged from 180-300˚C with a WHSV= 12.1 h-1 it was found that all the catalysts calcined at 550˚C showed higher activity than those calcined at 350˚C. In this study, the optimum catalyst was 6% Cu/AC550. This catalyst showed a high degree of stability, had one half activity of the pure catalyst (AC550) and double the activity of the optimum catalyst calcined at 350˚C (6% Cu/AC350). So, we recommended 6% Cu/AC550 for the production of DME from methanol. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bio-fuel" title="bio-fuel">bio-fuel</a>, <a href="https://publications.waset.org/abstracts/search?q=nano%20composite%20catalyst" title=" nano composite catalyst"> nano composite catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=DME" title=" DME"> DME</a>, <a href="https://publications.waset.org/abstracts/search?q=Cu-Al2O3" title=" Cu-Al2O3"> Cu-Al2O3</a> </p> <a href="https://publications.waset.org/abstracts/3494/production-of-renewable-and-clean-bio-fuel-dme-from-biomethanol-over-copper-modified-alumina-catalyst" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3494.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">297</span> 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