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Hosny</title> <meta name="description" content="Search results for: Rasha Hosny"> <meta name="keywords" content="Rasha Hosny"> <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="Rasha Hosny" 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="Rasha Hosny"> <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> 70</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Rasha Hosny</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">70</span> Evaluation of Water-Soluble Ionic Liquids Based on Quaternized Hyperbranched Polyamidoamine and Amino Acids for Chemical Enhanced Oil Recovery</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Hosny">Rasha Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Zahran"> Ahmed Zahran</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20Ramzi"> Mahmoud Ramzi</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Mahmoud%20Abdelhafiz"> Fatma Mahmoud Abdelhafiz</a>, <a href="https://publications.waset.org/abstracts/search?q=Ammona%20S.%20Mohamed"> Ammona S. Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20Fathy%20Mubarak"> Mahmoud Fathy Mubarak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ionic liquids' ability to be tuned and stability under challenging environmental conditions are their significant features in enhanced oil recovery. In this study, two amino acid ionic liquids (AAILs) were prepared from quaternized hyperbranched polyamidoamine PAMAM (G0.5 C12) and amino acids (Cysteine and Lysine). The chemical structures of the prepared AAILs were verified by using FTIR and 1H-NMR spectra. These AAILs were tested for solubility, thermal stability, and surface activity in the presence of Egyptian medium crude oils under different PVT parameters after being diluted in several brine solutions of various salt compositions at 10% (w/w) salinity. The measurements reveal that the produced AAILs have good solubility and thermal stability. The effect of different concentrations of AAILs (0.1-5%) and salinity (20000-70000 ppm) on Interfacial tension (IFT) were studied. To test the efficacy of (AAILs) for a CEOR, numerous flooding experiments were carried out in samples of sandstone rock. Rock wettability is important for sandstone rocks, so conduct wettability alteration by contact angle (CA) of (30-55) and IFT of (7-13). The additional oil recovery was largely influenced by ionic liquid concentration, which may be changed by dilution with the formation and injected brines. This research has demonstrated that EOR techniques led to a recovery wt. (22-45%). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=amino%20acid%20ionic%20liquids" title="amino acid ionic liquids">amino acid ionic liquids</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20activity" title=" surface activity"> surface activity</a>, <a href="https://publications.waset.org/abstracts/search?q=critical%20micelle%20concentration" title=" critical micelle concentration"> critical micelle concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=interfacial%20tension" title=" interfacial tension"> interfacial tension</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=chemical%20enhanced%20oil%20recovery" title=" chemical enhanced oil recovery"> chemical enhanced oil recovery</a>, <a href="https://publications.waset.org/abstracts/search?q=wettability" title=" wettability"> wettability</a> </p> <a href="https://publications.waset.org/abstracts/157261/evaluation-of-water-soluble-ionic-liquids-based-on-quaternized-hyperbranched-polyamidoamine-and-amino-acids-for-chemical-enhanced-oil-recovery" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157261.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">111</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">69</span> The Works of Ibrahim Eissa: A Controversy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Malak%20Khaled%20Hosny">Malak Khaled Hosny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper inspects Ibrahim Eissa, a famous Egyptian writer and TV persona, and his literary and film works. Having faced threats of persecution and assassination, Eissa is a controversial figure in Egyptian media, and his works always pose a trigger of outrage and conversation. His book The Preacher, his movie The Guest, and his TV show Faten Amal Harby all led to some controversy unfolding in Egyptian society, and all led to conversations erupting in Egyptian households and on social media platforms. Through a close reading of his written work and an analytic watch of his work on-screen, the paper delves into the details of the intentions behind and the repercussions of Ibrahim Eissa's work. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=censorship" title="censorship">censorship</a>, <a href="https://publications.waset.org/abstracts/search?q=film" title=" film"> film</a>, <a href="https://publications.waset.org/abstracts/search?q=literature" title=" literature"> literature</a>, <a href="https://publications.waset.org/abstracts/search?q=religion" title=" religion"> religion</a> </p> <a href="https://publications.waset.org/abstracts/175686/the-works-of-ibrahim-eissa-a-controversy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/175686.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">106</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">68</span> The Importance of Cultural Adaptation of B2C E-Services Design in Germany</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Alhendawi">Rasha Alhendawi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research will give the introductory ideas for cultural adaption of B2C E-Service design in Germany. By the intense competition of E-Service development, many companies have realized the importance of understanding the emotional and cultural characteristics of their customers. Ignoring customers’ needs and requirements throughout the E-Service design can lead to faults, mistakes, and gaps. The term of E-Service usability now is changed not only to develop high quality E-Services, but also to be extended to include customer satisfaction and provide for them to feel local. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=human%20computer%20interaction%20%28HCI%29" title="human computer interaction (HCI)">human computer interaction (HCI)</a>, <a href="https://publications.waset.org/abstracts/search?q=usability" title=" usability"> usability</a>, <a href="https://publications.waset.org/abstracts/search?q=cultural%20usability" title=" cultural usability"> cultural usability</a>, <a href="https://publications.waset.org/abstracts/search?q=E-Services" title=" E-Services"> E-Services</a>, <a href="https://publications.waset.org/abstracts/search?q=business-to-consumer%20%28B2C%29" title=" business-to-consumer (B2C)"> business-to-consumer (B2C)</a>, <a href="https://publications.waset.org/abstracts/search?q=e-services" title=" e-services"> e-services</a> </p> <a href="https://publications.waset.org/abstracts/36756/the-importance-of-cultural-adaptation-of-b2c-e-services-design-in-germany" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36756.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">67</span> An Ontology for Semantic Enrichment of RFID Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Haitham%20S.%20Hamza">Haitham S. Hamza</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Maher"> Mohamed Maher</a>, <a href="https://publications.waset.org/abstracts/search?q=Shourok%20Alaa"> Shourok Alaa</a>, <a href="https://publications.waset.org/abstracts/search?q=Aya%20Khattab"> Aya Khattab</a>, <a href="https://publications.waset.org/abstracts/search?q=Hadeal%20Ismail"> Hadeal Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=Kamilia%20Hosny"> Kamilia Hosny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Radio Frequency Identification (RFID) has become a key technology in the margining concept of Internet of Things (IoT). Naturally, business applications would require the deployment of various RFID systems that are developed by different vendors and use various data formats. This heterogeneity poses a real challenge in developing large-scale IoT systems with RFID as integration is becoming very complex and challenging. Semantic integration is a key approach to deal with this challenge. To do so, ontology for RFID systems need to be developed in order to annotated semantically RFID systems, and hence, facilitate their integration. Accordingly, in this paper, we propose ontology for RFID systems. The proposed ontology can be used to semantically enrich RFID systems, and hence, improve their usage and reasoning. The usage of the proposed ontology is explained through a simple scenario in the health care domain. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=RFID" title="RFID">RFID</a>, <a href="https://publications.waset.org/abstracts/search?q=semantic%20technology" title=" semantic technology"> semantic technology</a>, <a href="https://publications.waset.org/abstracts/search?q=ontology" title=" ontology"> ontology</a>, <a href="https://publications.waset.org/abstracts/search?q=sparql%20query%20language" title=" sparql query language"> sparql query language</a>, <a href="https://publications.waset.org/abstracts/search?q=heterogeneity" title=" heterogeneity"> heterogeneity</a> </p> <a href="https://publications.waset.org/abstracts/39376/an-ontology-for-semantic-enrichment-of-rfid-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/39376.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">471</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">66</span> Crime against Women behind Closed Doors in Indian Society</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Kumari%20Panda">Rasha Kumari Panda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The crime against women in closed door is an important burning issue in day to day life. Domestic violence has become daily part of women’s life. It affects the millions of the women throughout the India as it violates their human rights. Crime against women behind closed door is a manifestation of historically unequal power relations between men and women, discrimination against women moreover, when the world is approaching towards modernization, worse the condition of women and girls in our society. This paper examines how the rights of women are being violated and suggests the remedial measures to empower women. Powerlessness of women is the root cause of violence has been specifically addressed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=domestic%20violence" title="domestic violence">domestic violence</a>, <a href="https://publications.waset.org/abstracts/search?q=cruelty" title=" cruelty"> cruelty</a>, <a href="https://publications.waset.org/abstracts/search?q=dowry" title=" dowry"> dowry</a>, <a href="https://publications.waset.org/abstracts/search?q=statutes" title=" statutes"> statutes</a> </p> <a href="https://publications.waset.org/abstracts/86592/crime-against-women-behind-closed-doors-in-indian-society" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/86592.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">345</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">65</span> Promoters' Perspectives on the Impact of Development Projects: Do They Suffer from Any Forms of Social Injustice?</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ola%20Hosny">Ola Hosny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper illustrates promoters’ role in any development project and factors affecting their performance. The paper starts by giving an overview of the Egyptian context and the born of non-formal education. This is then followed by answers to the following questions; who are promoters, why build promoters’ skills, do promoters suffer from any forms of social injustice, what is meant by leadership’s skills, why build promoters’ leadership skills in specific, and finally what is the desired final destination. Given the fact that promoters are the actual implementers on ground of any project, this paper pinpoints the extent to which promoters' capacities should be developed to institutionalize projects' values into the community, transfer knowledge, and be able to act as pillars of change to sustain the maximum achievements from any intervention, illustrating the role of education for sustainable development. The paper wraps-up by a conclusion that reflects the main findings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=social%20justice" title="social justice">social justice</a>, <a href="https://publications.waset.org/abstracts/search?q=women%27s%20empowerment" title=" women's empowerment"> women's empowerment</a>, <a href="https://publications.waset.org/abstracts/search?q=gender%20equity" title=" gender equity"> gender equity</a>, <a href="https://publications.waset.org/abstracts/search?q=young%20rural%20women" title=" young rural women"> young rural women</a>, <a href="https://publications.waset.org/abstracts/search?q=promoters" title=" promoters"> promoters</a> </p> <a href="https://publications.waset.org/abstracts/36161/promoters-perspectives-on-the-impact-of-development-projects-do-they-suffer-from-any-forms-of-social-injustice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36161.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">355</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> Developing Medium Term Maintenance Plan For Road Networks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Helen%20S.%20Ghali">Helen S. Ghali</a>, <a href="https://publications.waset.org/abstracts/search?q=Haidy%20S.%20Ghali"> Haidy S. Ghali</a>, <a href="https://publications.waset.org/abstracts/search?q=Salma%20Ibrahim"> Salma Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Ossama%20Hosny"> Ossama Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Hatem%20S.%20Elbehairy"> Hatem S. Elbehairy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Infrastructure systems are essential assets in any community; accordingly, authorities aim to maximize its life span while minimizing the life cycle cost. This requires studying the asset conditions throughout its operation and forming a cost-efficient maintenance strategy plan. The objective of this study is to develop a highway management system that provides medium-term maintenance plans with the minimum life cycle cost subject to budget constraints. The model is applied to data collected for the highway network in India with the aim to output a 5-year maintenance plan strategy from 2019 till 2023. The main element considered is the surface coarse, either rigid or flexible pavement. The model outputs a 5-year maintenance plan for each segment given the budget constraint while maximizing the new pavement condition rating and minimizing its life cycle cost. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=infrastructure" title="infrastructure">infrastructure</a>, <a href="https://publications.waset.org/abstracts/search?q=asset%20management" title=" asset management"> asset management</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=maintenance%20plan" title=" maintenance plan"> maintenance plan</a> </p> <a href="https://publications.waset.org/abstracts/135846/developing-medium-term-maintenance-plan-for-road-networks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/135846.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">63</span> Exploring Cybersecurity and Phishing Attacks within Healthcare Institutions in Saudi Arabia: A Narrative Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ebtesam%20Shadadi">Ebtesam Shadadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Ibrahim"> Rasha Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Essam%20Ghadafi"> Essam Ghadafi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Phishing poses a significant threat as a cybercrime by tricking end users into revealing their confidential and sensitive information. Attackers often manipulate victims to achieve their malicious goals. The increasing prevalence of Phishing has led to extensive research on this issue, including studies focusing on phishing attempts in healthcare institutions in the Kingdom of Saudi Arabia. This paper explores the importance of analyzing phishing attacks, specifically focusing on those targeting the healthcare industry. The study delves into the tactics, obstacles, and remedies associated with these attacks, all while considering the implications for Saudi Vision 2030. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=phishing" title="phishing">phishing</a>, <a href="https://publications.waset.org/abstracts/search?q=cybersecurity" title=" cybersecurity"> cybersecurity</a>, <a href="https://publications.waset.org/abstracts/search?q=cyber%20threat" title=" cyber threat"> cyber threat</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20engineering" title=" social engineering"> social engineering</a>, <a href="https://publications.waset.org/abstracts/search?q=vision%202030" title=" vision 2030"> vision 2030</a> </p> <a href="https://publications.waset.org/abstracts/186544/exploring-cybersecurity-and-phishing-attacks-within-healthcare-institutions-in-saudi-arabia-a-narrative-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186544.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">61</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> Nutritional Quality of Partially Processed Chicken Meat Products from Egyptian and Saudi Arabia Markets</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20Meawad%20Ahmad">Ali Meawad Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Hosny%20A.%20Abdelrahman"> Hosny A. Abdelrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Chicken meat is a good source of protein of high biological value which contains most of essential amino-acids with high proportion of unsaturated fatty acids and low cholesterol level. Besides, it contain many vitamins as well as minerals which are important for the human body. Therefore, a total of 150 frozen chicken meat product samples, 800g each within their shelf-life, were randomly collected from commercial markets from Egypt (75 samples) and Saudi Arabian (75 samples) for chemical evaluation. The mean values of fat% in the examined samples of Egyptian and Saudi markets were 16.0% and 4.6% for chicken burger; 15.0% and 11% for nuggets and 11% and 11% for strips respectively. The mean values of moisture % in the examined samples of Egyptian and Saudi markets were 67.0% and 81% for chicken burger; 66.0% and 78% for nuggets and 71.0% and 72% for strips respectively. The mean values of protein % in the examined samples of Egyptian and Saudi markets were 15% and 17% for chicken burger; 16% and 16% for nuggets and 16% and 17% for strips respectively. The obtained results were compared with the Egyptian slandered and suggestions for improving the chemical quality of chicken products were given. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chicken%20meat" title="chicken meat">chicken meat</a>, <a href="https://publications.waset.org/abstracts/search?q=nutrition" title=" nutrition"> nutrition</a>, <a href="https://publications.waset.org/abstracts/search?q=Egypt" title=" Egypt"> Egypt</a>, <a href="https://publications.waset.org/abstracts/search?q=markets" title=" markets"> markets</a> </p> <a href="https://publications.waset.org/abstracts/40108/nutritional-quality-of-partially-processed-chicken-meat-products-from-egyptian-and-saudi-arabia-markets" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/40108.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">567</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> Kinematic Behavior of Geogrid Reinforcements during Earthquakes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Hosny%20Abdel-Rahman">Ahmed Hosny Abdel-Rahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Abdel-Moneim"> Mohamed Abdel-Moneim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Reinforced earth structures are generally subjected to cyclic loading generated from earthquakes. This paper presents a summary of the results and analyses of a testing program carried out in a large-scale multi-function geosynthetic testing apparatus that accommodates soil samples up to 1.0 m3. This apparatus performs different shear and pullout tests under both static and cyclic loading. The testing program was carried out to investigate the controlling factors affecting soil/geogrid interaction under cyclic loading. The extensibility of the geogrids, the applied normal stresses, the characteristics of the cyclic loading (frequency, and amplitude), and initial static load within the geogrid sheet were considered in the testing program. Based on the findings of the testing program, the effect of these parameters on the pullout resistance of geogrids, as well as the displacement mobility under cyclic loading were evaluated. Conclusions and recommendations for the design of reinforced earth walls under cyclic loading are presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=geogrid" title="geogrid">geogrid</a>, <a href="https://publications.waset.org/abstracts/search?q=soil" title=" soil"> soil</a>, <a href="https://publications.waset.org/abstracts/search?q=interface" title=" interface"> interface</a>, <a href="https://publications.waset.org/abstracts/search?q=cyclic%20loading" title=" cyclic loading"> cyclic loading</a>, <a href="https://publications.waset.org/abstracts/search?q=pullout" title=" pullout"> pullout</a>, <a href="https://publications.waset.org/abstracts/search?q=large%20scale%20testing" title=" large scale testing"> large scale testing</a> </p> <a href="https://publications.waset.org/abstracts/30799/kinematic-behavior-of-geogrid-reinforcements-during-earthquakes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30799.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">622</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> The Usage of Nitrogen Gas and Alum for Sludge Dewatering</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mamdouh%20Yousef%20Saleh">Mamdouh Yousef Saleh</a>, <a href="https://publications.waset.org/abstracts/search?q=Medhat%20Hosny%20El-Zahar"> Medhat Hosny El-Zahar</a>, <a href="https://publications.waset.org/abstracts/search?q=Shymaa%20El-Dosoky"> Shymaa El-Dosoky</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In most cases, the associated processing cost of dewatering sludge increase with the solid particles concentration. All experiments in this study were conducted on biological sludge type. All experiments help to reduce the greenhouse gases in addition, the technology used was faster in time and less in cost compared to other methods. First, the bubbling pressure was used to dissolve N₂ gas into the sludge, second alum was added to accelerate the process of coagulation of the sludge particles and facilitate their flotation, and third nitrogen gas was used to help floating the sludge particles and reduce the processing time because of the nitrogen gas from the inert gases. The conclusions of this experiment were as follows: first, the best conditions were obtained when the bubbling pressure was 0.6 bar. Second, the best alum dose was determined to help the sludge agglomerate and float. During the experiment, the best alum dose was 80 mg/L. It increased concentration of the sludge by 7-8 times. Third, the economic dose of nitrogen gas was 60 mg/L with separation efficiency of 85%. The sludge concentration was about 8-9 times. That happened due to the gas released tiny bubbles which adhere to the suspended matter causing them to float to the surface of the water where it could be then removed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nitrogen%20gas" title="nitrogen gas">nitrogen gas</a>, <a href="https://publications.waset.org/abstracts/search?q=biological%20treatment" title=" biological treatment"> biological treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=alum" title=" alum"> alum</a>, <a href="https://publications.waset.org/abstracts/search?q=dewatering%20sludge" title=" dewatering sludge"> dewatering sludge</a>, <a href="https://publications.waset.org/abstracts/search?q=greenhouse%20gases" title=" greenhouse gases"> greenhouse gases</a> </p> <a href="https://publications.waset.org/abstracts/104794/the-usage-of-nitrogen-gas-and-alum-for-sludge-dewatering" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104794.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">217</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> 3D Modelling of Fluid Flow in Tunnel Kilns</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jaber%20H.%20Almutairi">Jaber H. Almutairi</a>, <a href="https://publications.waset.org/abstracts/search?q=Hosny%20Z.%20Abou-Ziyan"> Hosny Z. Abou-Ziyan</a>, <a href="https://publications.waset.org/abstracts/search?q=Issa%20F.%20Almesri"> Issa F. Almesri</a>, <a href="https://publications.waset.org/abstracts/search?q=Mosab%20A.%20Alrahmani"> Mosab A. Alrahmani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work investigates the behavior of fluid flow inside tunnel kilns using 3D-CFD (Computational Fluid Dynamics) simulations. The CFD simulations are carried out with the FLUENT software and validated against experimental results on fluid flow and heat transfer in tunnel kilns. A grid dependency study is conducted in the current work to improve the accuracy of the results. Three turbulence models k–ω, standard k–ε, and RNG k–ε are tested where k–ω model gives the best results in comparison with the experiment. The numerical results reveal an intriguing phenomenon where a long flow separation zone behind the setting is observed under different geometric and operation conditions. It was found that the uniformity of flow distribution can be substantially improved by rearranging the geometrical parameters of brick setting relative to kiln/setting. This improvement of flow distribution plays a critical role to enhance the quality and quantity of the production. It can be concluded that a better design and operation of tunnel kilns in terms of productivity and energy consumption can be obtained by taking into consideration the flow uniformity inside the tunnel kilns using CFD modelling. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tunnel%20kilns" title="tunnel kilns">tunnel kilns</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20separation" title=" flow separation"> flow separation</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20uniformity" title=" flow uniformity"> flow uniformity</a>, <a href="https://publications.waset.org/abstracts/search?q=computational%20fluid%20dynamics" title=" computational fluid dynamics"> computational fluid dynamics</a> </p> <a href="https://publications.waset.org/abstracts/62902/3d-modelling-of-fluid-flow-in-tunnel-kilns" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/62902.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">329</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> Effect of Different Local Anesthetic Agents on Physiological Parameters and Vital Signs during Extraction in Children</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20F.%20Sharaf">Rasha F. Sharaf</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Administration of local anesthesia for a child is considered a painful procedure, which affects his vital signs, physiological parameters, and his further attitude in the dental clinic. During the extraction of mandibular molars, the nerve block technique is the most commonly used for the administration of local anesthesia; however, this technique requires deep penetration of the needle, which causes pain and discomfort for the child. Therefore, the inferior alveolar nerve block technique can be substituted with an infiltration technique which is not painful if a potent anesthetic solutions will be used. In the current study, the effect of Articaine 4% will be compared to Mepivacaine 2%, and their influence on the vital signs of the child, as well as their ability to control pain during extraction, will be assessed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anesthesia" title="anesthesia">anesthesia</a>, <a href="https://publications.waset.org/abstracts/search?q=articaine" title=" articaine"> articaine</a>, <a href="https://publications.waset.org/abstracts/search?q=pain%20control" title=" pain control"> pain control</a>, <a href="https://publications.waset.org/abstracts/search?q=extraction" title=" extraction"> extraction</a> </p> <a href="https://publications.waset.org/abstracts/158270/effect-of-different-local-anesthetic-agents-on-physiological-parameters-and-vital-signs-during-extraction-in-children" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158270.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">122</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> Study of Some Aromatic Thiourea Derivatives as Lube Oil Antioxidant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20S.%20Kamal">Rasha S. Kamal</a>, <a href="https://publications.waset.org/abstracts/search?q=Nehal%20S.%20Ahmed"> Nehal S. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Amal%20M.%20Nassar"> Amal M. Nassar</a>, <a href="https://publications.waset.org/abstracts/search?q=Nour%20E.%20A.%20Abd%20El-Sattar"> Nour E. A. Abd El-Sattar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the present work, some lube oil antioxidants based on ester of some aromatic thiourea derivative were prepared by two steps: the first step is the reaction of succinyl chloride with ammonium thiocyanate in addition to anthranilic acid as three component system to prepare thiourea derivative (A); the second step is esterification of compound (A) by different alcohol (decyl C₁₀, tetradecyl C₁₄, and octadecyl C₁₈) alcohol. The structures of the prepared compounds were confirmed by infra-red spectroscopy, nuclear magnetic resonance, elemental analysis and determination of the molecular weights. All the prepared compounds were soluble in lube oil. The efficiency of the prepared compounds as antioxidants lube oil additives was investigated and it was found that these prepared compounds give good result as lube oil antioxidant. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20lube%20oil" title="antioxidant lube oil">antioxidant lube oil</a>, <a href="https://publications.waset.org/abstracts/search?q=three%20component%20system" title=" three component system"> three component system</a>, <a href="https://publications.waset.org/abstracts/search?q=aromatic%20thiourea%20derivatives" title=" aromatic thiourea derivatives"> aromatic thiourea derivatives</a>, <a href="https://publications.waset.org/abstracts/search?q=esterification" title=" esterification"> esterification</a> </p> <a href="https://publications.waset.org/abstracts/79922/study-of-some-aromatic-thiourea-derivatives-as-lube-oil-antioxidant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79922.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">242</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> Study the Efficiency of Some Homopolymers as Lube Oil Additives</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amal%20M.%20Nassar">Amal M. Nassar</a>, <a href="https://publications.waset.org/abstracts/search?q=Nehal%20S.%20Ahmed"> Nehal S. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasha%20S.%20Kamal"> Rasha S. Kamal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Some lube oil additives improve the base oil performance such as viscosity index improvers and pour point depressants which are the most important type of additives. In the present work, some homopolymeric additives were prepared by esterification of acrylic acid with different alcohols (1-dodecyl, 1-hexadecyl, and 1-octadecyl )and then homopolymerization of the prepared esters with different ratio of benzoyl peroxide catalyst (0.25%& 0.5 % and 1%). Structure of the prepared esters was confirmed by Infra-Red Spectroscopy. The molecular weights of the prepared homopolymers were determined by using Gel Permeation Chromatograph. The efficiency of the prepared homopolymers as viscosity index improvers and pour point depressants for lube oil was the investigation. It was found that all the prepared homopolymers are effective as viscosity index improvers and pour point depressants. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lube%20oil%20additives" title="lube oil additives">lube oil additives</a>, <a href="https://publications.waset.org/abstracts/search?q=homopolymerization" title=" homopolymerization"> homopolymerization</a>, <a href="https://publications.waset.org/abstracts/search?q=viscosity%20index%20improver" title=" viscosity index improver"> viscosity index improver</a>, <a href="https://publications.waset.org/abstracts/search?q=pour%20point%20depressant" title=" pour point depressant"> pour point depressant</a> </p> <a href="https://publications.waset.org/abstracts/90608/study-the-efficiency-of-some-homopolymers-as-lube-oil-additives" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90608.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">232</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> A New Approach to Image Stitching of Radiographic Images</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Somaya%20Adwan">Somaya Adwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Majed"> Rasha Majed</a>, <a href="https://publications.waset.org/abstracts/search?q=Lamya%27a%20Majed"> Lamya'a Majed</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamzah%20Arof"> Hamzah Arof</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In order to produce images with whole body parts, X-ray of different portions of the body parts is assembled using image stitching methods. A new method for image stitching that exploits mutually feature based method and direct based method to identify and merge pairs of X-ray medical images is presented in this paper. The performance of the proposed method based on this hybrid approach is investigated in this paper. The ability of the proposed method to stitch and merge the overlapping pairs of images is demonstrated. Our proposed method display comparable if not superior performance to other feature based methods that are mentioned in the literature on the standard databases. These results are promising and demonstrate the potential of the proposed method for further development to tackle more advanced stitching problems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=image%20stitching" title="image stitching">image stitching</a>, <a href="https://publications.waset.org/abstracts/search?q=direct%20based%20method" title=" direct based method"> direct based method</a>, <a href="https://publications.waset.org/abstracts/search?q=panoramic%20image" title=" panoramic image"> panoramic image</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray" title=" X-ray"> X-ray</a> </p> <a href="https://publications.waset.org/abstracts/17610/a-new-approach-to-image-stitching-of-radiographic-images" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17610.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">54</span> Investigating the Impact of Solar Radiation on Electricity Meters’ Accuracy Using A Modified Climatic Chamber</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hala%20M.%20Abdel%20Mageed">Hala M. Abdel Mageed</a>, <a href="https://publications.waset.org/abstracts/search?q=Eman%20M.%20Hosny"> Eman M. Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20S.%20Nada"> Adel S. Nada</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solar radiation test is one of the essential tests performed on electricity meters that is carried out using solar simulators. In this work, the (MKF-240) climatic chamber has been modified to act as a solar simulator at the Egyptian national institute of standard, NIS. Quartz Tungsten Halogen (QTH) lamps and an Aluminum plate are added to the climatic chamber to realize the solar test conditions. Many experimental trials have been performed to reach the optimum number of lamps needed to fulfil the test requirements and to adjust the best uniform test area. The proposed solar simulator design is capable to produce irradiance up to 1066 W/m2. Its output radiation is controlled by changing the number of illuminated lamps as well as changing the distance between lamps and tested electricity meter. The uniformity of radiation within the simulator has been recognized to be 91.5 % at maximum irradiance. Three samples of electricity meters have been tested under different irradiances, temperatures, and electric loads. The electricity meters’ accuracies have been recorded and analyzedfor eachsample. Moreover, measurement uncertainty contribution has been considered in all tests to get precision value. There were noticeable changes in the accuracies of the electricity meters while exposed to solar radiation, although there were no noticeable distortions of their insulationsand outer surfaces. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solar%20radiation" title="solar radiation">solar radiation</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20simulator" title=" solar simulator"> solar simulator</a>, <a href="https://publications.waset.org/abstracts/search?q=climatic%20chamber" title=" climatic chamber"> climatic chamber</a>, <a href="https://publications.waset.org/abstracts/search?q=halogen%20lamp" title=" halogen lamp"> halogen lamp</a>, <a href="https://publications.waset.org/abstracts/search?q=electricity%20meter" title=" electricity meter"> electricity meter</a> </p> <a href="https://publications.waset.org/abstracts/152458/investigating-the-impact-of-solar-radiation-on-electricity-meters-accuracy-using-a-modified-climatic-chamber" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152458.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">126</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> BeamGA Median: A Hybrid Heuristic Search Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ghada%20Badr">Ghada Badr</a>, <a href="https://publications.waset.org/abstracts/search?q=Manar%20Hosny"> Manar Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Nuha%20Bintayyash"> Nuha Bintayyash</a>, <a href="https://publications.waset.org/abstracts/search?q=Eman%20Albilali"> Eman Albilali</a>, <a href="https://publications.waset.org/abstracts/search?q=Souad%20Larabi%20Marie-Sainte"> Souad Larabi Marie-Sainte</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The median problem is significantly applied to derive the most reasonable rearrangement phylogenetic tree for many species. More specifically, the problem is concerned with finding a permutation that minimizes the sum of distances between itself and a set of three signed permutations. Genomes with equal number of genes but different order can be represented as permutations. In this paper, an algorithm, namely BeamGA median, is proposed that combines a heuristic search approach (local beam) as an initialization step to generate a number of solutions, and then a Genetic Algorithm (GA) is applied in order to refine the solutions, aiming to achieve a better median with the smallest possible reversal distance from the three original permutations. In this approach, any genome rearrangement distance can be applied. In this paper, we use the reversal distance. To the best of our knowledge, the proposed approach was not applied before for solving the median problem. Our approach considers true biological evolution scenario by applying the concept of common intervals during the GA optimization process. This allows us to imitate a true biological behavior and enhance genetic approach time convergence. We were able to handle permutations with a large number of genes, within an acceptable time performance and with same or better accuracy as compared to existing algorithms. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=median%20problem" title="median problem">median problem</a>, <a href="https://publications.waset.org/abstracts/search?q=phylogenetic%20tree" title=" phylogenetic tree"> phylogenetic tree</a>, <a href="https://publications.waset.org/abstracts/search?q=permutation" title=" permutation"> permutation</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title=" genetic algorithm"> genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=beam%20search" title=" beam search"> beam search</a>, <a href="https://publications.waset.org/abstracts/search?q=genome%20rearrangement%20distance" title=" genome rearrangement distance"> genome rearrangement distance</a> </p> <a href="https://publications.waset.org/abstracts/73026/beamga-median-a-hybrid-heuristic-search-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73026.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">265</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> Resident-Aware Green Home</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahlam%20Elkilani">Ahlam Elkilani</a>, <a href="https://publications.waset.org/abstracts/search?q=Bayan%20Elsheikh%20Ali"> Bayan Elsheikh Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Abu%20Romman"> Rasha Abu Romman</a>, <a href="https://publications.waset.org/abstracts/search?q=Amjed%20Al-mousa"> Amjed Al-mousa</a>, <a href="https://publications.waset.org/abstracts/search?q=Belal%20Sababha"> Belal Sababha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The amount of energy the world uses doubles every 20 years. Green homes play an important role in reducing the residential energy demand. This paper presents a platform that is intended to learn the behavior of home residents and build a profile about their habits and actions. The proposed resident aware home controller intervenes in the operation of home appliances in order to save energy without compromising the convenience of the residents. The presented platform can be used to simulate the actions and movements happening inside a home. The paper includes several optimization techniques that are meant to save energy in the home. In addition, several test scenarios are presented that show how the controller works. Moreover, this paper shows the computed actual savings when each of the presented techniques is implemented in a typical home. The test scenarios have validated that the techniques developed are capable of effectively saving energy at homes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=green%20home" title="green home">green home</a>, <a href="https://publications.waset.org/abstracts/search?q=resident%20aware" title=" resident aware"> resident aware</a>, <a href="https://publications.waset.org/abstracts/search?q=resident%20profile" title=" resident profile"> resident profile</a>, <a href="https://publications.waset.org/abstracts/search?q=activity%20learning" title=" activity learning"> activity learning</a>, <a href="https://publications.waset.org/abstracts/search?q=machine%20learning" title=" machine learning"> machine learning</a> </p> <a href="https://publications.waset.org/abstracts/10045/resident-aware-green-home" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10045.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">389</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 Influencing Site Overhead Cost of Construction Projects in Egypt: A Comparative Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aya%20Effat">Aya Effat</a>, <a href="https://publications.waset.org/abstracts/search?q=Ossama%20A.%20Hosny"> Ossama A. Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Elkhayam%20M.%20Dorra"> Elkhayam M. Dorra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Estimating costs is a crucial step in construction management and should be completed at the beginning of every project to establish the project's budget. The precision of the cost estimate plays a significant role in the success of construction projects as it allows project managers to effectively manage the project's costs. Site overhead costs constitute a significant portion of construction project budgets, necessitating accurate prediction and management. These costs are influenced by a multitude of factors, requiring a thorough examination and analysis to understand their relative importance and impact. Thus, the main aim of this research is to enhance the contractor’s ability to predict and manage site overheads by identifying and analyzing the main factors influencing the site overheads costs in the Egyptian construction industry. Through a comprehensive literature review, key factors were first identified and subsequently validated using a thorough comparative analysis of data from 55 real-life construction projects. Through this comparative analysis, the relationship between each factor and site overheads percentage as well as each site overheads subcategory and each project construction phase was identified and examined. Furthermore, correlation analysis was done to check for multicollinearity and identify factors with the highest impact. The findings of this research offer valuable insights into the key drivers of site overhead costs in the Egyptian construction industry. By understanding these factors, construction professionals can make informed decisions regarding the estimation and management of site overhead costs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=comparative%20analysis" title="comparative analysis">comparative analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=cost%20estimation" title=" cost estimation"> cost estimation</a>, <a href="https://publications.waset.org/abstracts/search?q=construction%20management" title=" construction management"> construction management</a>, <a href="https://publications.waset.org/abstracts/search?q=site%20overheads" title=" site overheads"> site overheads</a> </p> <a href="https://publications.waset.org/abstracts/192563/factors-influencing-site-overhead-cost-of-construction-projects-in-egypt-a-comparative-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/192563.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">17</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> Flexural Strengthening of Steel Beams Using Fiber Reinforced Polymers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sally%20Hosny">Sally Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Mona%20G.%20Ibrahim"> Mona G. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20K.%20Hassan"> N. K. Hassan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fiber reinforced polymers (FRP) is one of the most environmentally method for strengthening and retrofitting steel structure buildings. The behaviour of flexural strengthened steel I-beams using FRP was investigated. The finite element (FE) models were developed using ANSYS® as verification cases to simulate the experimental behaviour of using FRP strips to flexure strengthen steel I-beam. Two experimental studies were selected for verification; first examined the effect of different thicknesses and modulus of elasticity while the second studied the effect of applying different carbon fiber reinforced polymers (CFRP) bond lengths. The proposed FE models were in good agreement with the experimental results in terms of failure modes, load bearing capacities and strain distribution on CFRP strips. The verified FE models can be utilized to conduct a parametric study where various widths (40, 50, 60, 70 and 80 mm), thickness (1.2, 2 and 4 mm) and lengths (1500, 1700 and 1800 mm) of CFRP were analyzed. The results presented clearly revealed that the load bearing capacity was significantly increased (+7%) when the width and thickness were increased. However, load bearing capacity was slightly affected using longer CFRP strips. Moreover, applying another glass fiber reinforced polymers (GFRP) of 1500 mm in length, 50 mm in width and thicknesses of 1.2, 2 and 4 mm were investigated. Load bearing capacity of strengthened I-beams using GFRP is less than CFRP by average 8%. Statistical analysis has been conducted using Minitab®. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=FRP" title="FRP">FRP</a>, <a href="https://publications.waset.org/abstracts/search?q=strengthened%20steel%20I-beams" title=" strengthened steel I-beams"> strengthened steel I-beams</a>, <a href="https://publications.waset.org/abstracts/search?q=flexural" title=" flexural"> flexural</a>, <a href="https://publications.waset.org/abstracts/search?q=FEM" title=" FEM"> FEM</a>, <a href="https://publications.waset.org/abstracts/search?q=ANSYS" title=" ANSYS"> ANSYS</a> </p> <a href="https://publications.waset.org/abstracts/90119/flexural-strengthening-of-steel-beams-using-fiber-reinforced-polymers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90119.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">49</span> Moho Undulations beneath South of Egypt, Using the Seismic Waves Generated by Tele Earthquakes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Hosny">Ahmed Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Haroon%20Elshaikh"> Haroon Elshaikh</a>, <a href="https://publications.waset.org/abstracts/search?q=Gaber%20Hassib"> Gaber Hassib</a>, <a href="https://publications.waset.org/abstracts/search?q=Yassin%20Ali"> Yassin Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Moho discontinuity undulations beneath the southern part of Egypt have been defined using the seismic waves generated by tele earthquakes. These earthquakes have been recorded by the Aswan seismic network, which consists of 10 seismic stations established around the lake of Nasser. An additional seismic station was located towards the east of the Lake of Nasser by about ~ 150 km. Receiver functions and H-k stacking methods were used for obtaining the depths of Moho discontinuity and the Vp/Vs ratios beneath each seismic station. Our results revealed that, the depths of Moho discontinuity beneath the stations located around the Lake of Nasser range from 36 to 39 km, with an average value of 37.5 km. These results are consistent with the previous works done on the same area. The obtained Vp/Vs ratios for the crust of this area were ranged from 1.73 to 1.86, with an average value of 1.79. While beneath the station located towards the east, the Moho discontinuity was detected at a shallowest depth of 27 km and the Vp/Vs ratio was 1.82. The difference in the Moho depths beneath the stations located around the Lake of Nasser and the station located to the east revealed the boundary position between the Saharan Metacraton to the west and the Nubian-Arabian Shield to the east. This structural boundary delineates the position of the old collision of the Oceanic crust of the Nubian-Arabian Shield to the east with the Continental crust of the Saharan Metacraton to the west. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Moho%20undulations" title="Moho undulations">Moho undulations</a>, <a href="https://publications.waset.org/abstracts/search?q=south%20of%20Egypt" title=" south of Egypt"> south of Egypt</a>, <a href="https://publications.waset.org/abstracts/search?q=seismic%20waves" title=" seismic waves"> seismic waves</a>, <a href="https://publications.waset.org/abstracts/search?q=earthquakes" title=" earthquakes"> earthquakes</a> </p> <a href="https://publications.waset.org/abstracts/36076/moho-undulations-beneath-south-of-egypt-using-the-seismic-waves-generated-by-tele-earthquakes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36076.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">512</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> Naturally Occurring Abietic Acid for Liquid Crystalline Epoxy Curing Agents</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20A.Ibrahim%20El-Ghazawy">Rasha A.Ibrahim El-Ghazawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashraf%20M.%20El-Saeed"> Ashraf M. El-Saeed</a>, <a href="https://publications.waset.org/abstracts/search?q=Heusin%20El-Shafey"> Heusin El-Shafey</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Abdel-Raheim"> M. Abdel-Raheim</a>, <a href="https://publications.waset.org/abstracts/search?q=Maher%20A.%20El-Sockary"> Maher A. El-Sockary</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Two thermotropic liquid crystalline curing agents based on abietic acid with different mesogens (LCC1 and LCC2) were synthesized for producing thermally stable liquid crystal networks suitable for high performance epoxy coatings. Differential scanning calorimetry (DSC) and polarized optical microscope (POM) was used to identify the liquid crystal phase transformation temperatures and texture, respectively. POM micro graphs for both LCCs revealing cholesteric texture. A multifunctional epoxy resin with two abietic acid moieties was also synthesized. Dynamic mechanical (DMA) and thermogravimetric (TGA) analyses show that the fully bio-based cured epoxies by either LCCs possess high glass transition temperature (Tg), high modulus (G`) and improved thermal stability. The chemical structure of the synthesized LCCs and epoxy resin was investigated through FTIR and 1HNMR spectroscopic techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=abietic%20acid" title="abietic acid">abietic acid</a>, <a href="https://publications.waset.org/abstracts/search?q=dynamic%20mechanical%20analysis" title=" dynamic mechanical analysis"> dynamic mechanical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=epoxy%20resin" title=" epoxy resin"> epoxy resin</a>, <a href="https://publications.waset.org/abstracts/search?q=liquid%20crystal" title=" liquid crystal"> liquid crystal</a>, <a href="https://publications.waset.org/abstracts/search?q=thermo%20gravimetric%20analysis" title=" thermo gravimetric analysis "> thermo gravimetric analysis </a> </p> <a href="https://publications.waset.org/abstracts/33613/naturally-occurring-abietic-acid-for-liquid-crystalline-epoxy-curing-agents" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33613.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">363</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> A Study of User Awareness and Attitudes Towards Civil-ID Authentication in Oman’s Electronic Services</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raya%20Al%20Khayari">Raya Al Khayari</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Al%20Jassim"> Rasha Al Jassim</a>, <a href="https://publications.waset.org/abstracts/search?q=Muna%20Al%20Balushi"> Muna Al Balushi</a>, <a href="https://publications.waset.org/abstracts/search?q=Fatma%20Al%20Moqbali"> Fatma Al Moqbali</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20El%20Hajjar"> Said El Hajjar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study utilizes linear regression analysis to investigate the correlation between user account passwords and the probability of civil ID exposure, offering statistical insights into civil ID security. The study employs multiple linear regression (MLR) analysis to further investigate the elements that influence consumers’ views of civil ID security. This aims to increase awareness and improve preventive measures. The results obtained from the MLR analysis provide a thorough comprehension and can guide specific educational and awareness campaigns aimed at promoting improved security procedures. In summary, the study’s results offer significant insights for improving existing security measures and developing more efficient tactics to reduce risks related to civil ID security in Oman. By identifying key factors that impact consumers’ perceptions, organizations can tailor their strategies to address vulnerabilities effectively. Additionally, the findings can inform policymakers on potential regulatory changes to enhance civil ID security in the country. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=civil-id%20disclosure" title="civil-id disclosure">civil-id disclosure</a>, <a href="https://publications.waset.org/abstracts/search?q=awareness" title=" awareness"> awareness</a>, <a href="https://publications.waset.org/abstracts/search?q=linear%20regression" title=" linear regression"> linear regression</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20regression" title=" multiple regression"> multiple regression</a> </p> <a href="https://publications.waset.org/abstracts/185886/a-study-of-user-awareness-and-attitudes-towards-civil-id-authentication-in-omans-electronic-services" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185886.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">57</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> Conspiracy Theory in Discussions of the Coronavirus Pandemic in the Gulf Region</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Salameh">Rasha Salameh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In light of the tense relationship between Saudi Arabia and Iran, this research paper sheds some light on Al-Arabiya’s reporting of Coronavirus in the Gulf. Particularly because most of the cases, in the beginning, were coming from Iran, some programs of this Saudi channel embraced a conspiracy theory. Hate speech has been used in talking about the topic and discussing it. The results of these discussions will be detailed in this paper in percentages with regard to the research sample, which includes five programs on Al-Arabiya channel: ‘DNA’, ‘Marraya’ (Mirrors), ‘Panorama’, ‘Tafaolcom’ (Your Interaction) and the ‘Diplomatic Street’, in the period between January 19, that is, the date of the first case in Iran, and April 10, 2020. The research shows the use of a conspiracy theory in the programs, in addition to some professional violations. The surveyed sample also shows that the matter receded due to the Arab Gulf states' preoccupation with the successively increasing cases that have appeared there since the start of the pandemic. The results indicate that hate speech was present in the sample at a rate of 98.1% and that most of the programs that dealt with the Iranian issue under the Corona pandemic on Al Arabiya used the conspiracy theory at a rate of 75.5%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Al-Arabiya" title="Al-Arabiya">Al-Arabiya</a>, <a href="https://publications.waset.org/abstracts/search?q=Iran" title=" Iran"> Iran</a>, <a href="https://publications.waset.org/abstracts/search?q=Corona" title=" Corona"> Corona</a>, <a href="https://publications.waset.org/abstracts/search?q=hate%20speech" title=" hate speech"> hate speech</a>, <a href="https://publications.waset.org/abstracts/search?q=conspiracy%20theory" title=" conspiracy theory"> conspiracy theory</a>, <a href="https://publications.waset.org/abstracts/search?q=politicization%20of%20the%20pandemic" title=" politicization of the pandemic"> politicization of the pandemic</a> </p> <a href="https://publications.waset.org/abstracts/136292/conspiracy-theory-in-discussions-of-the-coronavirus-pandemic-in-the-gulf-region" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/136292.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">136</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> Effect of Eddy Irrigant Activation on Cleanliness of the Root Canal Wall during Pulpectomy of Primary Teeth </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Sharaf">Rasha Sharaf</a>, <a href="https://publications.waset.org/abstracts/search?q=Nehal%20Sharaf"> Nehal Sharaf</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Pulpectomy of primary teeth aims to remove the necrotic pulp tissue from the infected root canal and clean the root canal walls from any remnant of pulp tissue. Different irrigant activation systems have been recently used, and one of these devices is the Eddy which helps in removal of smear layer and improves the intimate contact between the filling material and the root canal wall. Aim: To evaluate the efficacy of Eddy in cleanliness of the root canal during pulpectomy of primary teeth. Materials and methods: 45 freshly extracted primary anterior teeth were divided into 3 equal groups, in the 1st group sodium hypochlorite only was used during pulpectomy, in the 2nd group irrigation using sodium hypochlorite with file agitation was performed and in the 3rd group sodium hypochlorite was used with Eddy for irrigant activation. All samples were sectioned longitudinally and scanned using scanning electron microscope to evaluate the cleanliness of the root canals. Results: It was found that Eddy showed high efficacy in removal of smear layer during pulpectomy of primary teeth. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eddy" title="Eddy">Eddy</a>, <a href="https://publications.waset.org/abstracts/search?q=irrigant%20activation" title=" irrigant activation"> irrigant activation</a>, <a href="https://publications.waset.org/abstracts/search?q=irrigation" title=" irrigation"> irrigation</a>, <a href="https://publications.waset.org/abstracts/search?q=pulpectomy" title=" pulpectomy"> pulpectomy</a> </p> <a href="https://publications.waset.org/abstracts/131150/effect-of-eddy-irrigant-activation-on-cleanliness-of-the-root-canal-wall-during-pulpectomy-of-primary-teeth" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/131150.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">152</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> Phenotypical and Genotypical Assessment Techniques for Identification of Some Contagious Mastitis Pathogens</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ayman%20El%20Behiry">Ayman El Behiry</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Nabil%20Zahran"> Rasha Nabil Zahran</a>, <a href="https://publications.waset.org/abstracts/search?q=Reda%20Tarabees"> Reda Tarabees</a>, <a href="https://publications.waset.org/abstracts/search?q=Eman%20Marzouk"> Eman Marzouk</a>, <a href="https://publications.waset.org/abstracts/search?q=Musaad%20Al-Dubaib"> Musaad Al-Dubaib</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mastitis is one of the most economic disease affecting dairy cows worldwide. Its classic diagnosis using bacterial culture and biochemical findings is a difficult and prolonged method. In this research, using of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) permitted identification of different microorganisms with high accuracy and rapidity (only 24 hours for microbial growth and analysis). During the application of MALDI-TOF MS, one hundred twenty strains of Staphylococcus and Streptococcus species isolated from milk of cows affected by clinical and subclinical mastitis were identified, and the results were compared with those obtained by traditional methods as API and VITEK 2 Systems. 37 of totality 39 strains (~95%) of Staphylococcus aureus (S. aureus) were exactly detected by MALDI TOF MS and then confirmed by a nuc-based PCR technique, whereas accurate identification was observed in 100% (50 isolates) of the coagulase negative staphylococci (CNS) and Streptococcus agalactiae (31 isolates). In brief, our results demonstrated that MALDI-TOF MS is a fast and truthful technique which has the capability to replace conventional identification of several bacterial strains usually isolated in clinical laboratories of microbiology. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=identification" title="identification">identification</a>, <a href="https://publications.waset.org/abstracts/search?q=mastitis%20pathogens" title=" mastitis pathogens"> mastitis pathogens</a>, <a href="https://publications.waset.org/abstracts/search?q=mass%20spectral" title=" mass spectral"> mass spectral</a>, <a href="https://publications.waset.org/abstracts/search?q=phenotypical" title=" phenotypical"> phenotypical</a> </p> <a href="https://publications.waset.org/abstracts/8669/phenotypical-and-genotypical-assessment-techniques-for-identification-of-some-contagious-mastitis-pathogens" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8669.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">332</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> Blended Learning and English Language Teaching: Instructors' Perceptions and Aspirations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20Alshaye">Rasha Alshaye</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Blended learning has become an innovative model that combines face-to-face with e-learning approaches. The Saudi Electronic University (SEU) has adopted blended learning as a flexible approach that provides instructors and learners with a motivating learning environment to stimulate the teaching and learning process. This study investigates the perceptions of English language instructors, teaching the four English language skills at Saudi Electronic University. Four main domains were examined in this study; challenges that the instructors encounter while implementing the blended learning approach, enhancing student-instructor interaction, flexibility in teaching, and the lack of technical skills. Furthermore, the study identifies and represents the instructors’ aspirations and plans to utilize this approach in enhancing the teaching and learning experience. Main findings indicate that instructors at Saudi Electronic University experience some challenges while teaching the four language skills. However, they find the blended learning approach motivating and flexible for them and their students. This study offers some important understandings into how instructors are applying the blended learning approach and how this process can be enriched. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=blended%20learning" title="blended learning">blended learning</a>, <a href="https://publications.waset.org/abstracts/search?q=English%20language%20skills" title=" English language skills"> English language skills</a>, <a href="https://publications.waset.org/abstracts/search?q=English%20teaching" title=" English teaching"> English teaching</a>, <a href="https://publications.waset.org/abstracts/search?q=instructors%27%20perceptions" title=" instructors' perceptions"> instructors' perceptions</a> </p> <a href="https://publications.waset.org/abstracts/115948/blended-learning-and-english-language-teaching-instructors-perceptions-and-aspirations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115948.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">139</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> Assessment of Green Dendritic Hyperbranched Nanocomposites Viscosity Index Improvers in One Pot Step</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rasha%20S.%20Kamal">Rasha S. Kamal</a>, <a href="https://publications.waset.org/abstracts/search?q=Reham%20I.%20El-Shazly"> Reham I. El-Shazly</a>, <a href="https://publications.waset.org/abstracts/search?q=Reem%20K.%20Farag"> Reem K. Farag</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Green nano-branched structural compounds were synthesized by adding 1% by weight of clay nanoparticle to different moles ratios of either dodecyl acrylate or triethylenetetramine using a simple one-pot method. The synthesized nano polymers were provided with different terminations. In order to confirm the chemical structure of the produced nanocomposites, FTIR and 1HNMR spectroscopy were performed. Additionally, Dynamic Light Scattering (DLS) analysis was used to assess the size and dispersion of the produced branching nano polymers. Using a Gel-permeation chromatograph, the molecular weights of the produced modified green nano hyperbranched polymer with various terminations were determined. the prepared nano samples with different molar feed ratios dodecyl acrylate: triethylenetetramine (DDA: TETA) was designed as An, Bn, Cn, Dn and En. Moreover, the synthesized compounds are expressed as viscosity index improvers (VII); The VI rises when prepared additive concentrations in the solution improve, as does the VI as prepared hyperbranched polymers' triethylenetetramine content rises, and the most effective VI is (E). All of the synthesized green hyperbranched nanocomposites have Newtonian rheological behavior as their rheological behavior. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=green%20hyperbranched%20polymer" title="green hyperbranched polymer">green hyperbranched polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=DLS" title=" DLS"> DLS</a>, <a href="https://publications.waset.org/abstracts/search?q=viscosity%20index%20improver" title=" viscosity index improver"> viscosity index improver</a>, <a href="https://publications.waset.org/abstracts/search?q=Michael%20addition" title=" Michael addition"> Michael addition</a>, <a href="https://publications.waset.org/abstracts/search?q=nano%20clay" title=" nano clay"> nano clay</a> </p> <a href="https://publications.waset.org/abstracts/163224/assessment-of-green-dendritic-hyperbranched-nanocomposites-viscosity-index-improvers-in-one-pot-step" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163224.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">122</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> Produced Water Treatment Using Novel Solid Scale Inhibitors Based on Silver Tungstate Loaded Kit-6: Static and Modeling Evaluation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Hosny">R. Hosny</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20F.%20Mubarak"> Mahmoud F. Mubarak</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20M.%20Salem"> Heba M. Salem</a>, <a href="https://publications.waset.org/abstracts/search?q=Asmaa%20A.%20Abdelrahman"> Asmaa A. Abdelrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Oilfield scaling is a major problem in the oil and gas industry. Scale issues cost the industry millions of dollars in damage and lost production every year. One of the main causes of global production decline is scale. In this study, solid scale inhibitors based on silver tungstate loaded KIT-6 were synthesized and evaluated in both static and scale inhibition modeling. The silver tungstate loaded KIT-6 catalysts were synthesized via a simple impregnated method using 3D mesoporous KIT-6 as support. The synthesized materials were characterized using wide and low XRD, N2 adsorption–desorption analysis, TGA analysis, and FTIR, SEM, and XPS analysis. The scale inhibition efficiency of the synthesized materials was evaluated using a static scale inhibition test. The results of this study demonstrate the potential application of silver tungstate-loaded KIT-6 solid scale inhibitors for the oil and gas industry. The results of this study will contribute to the development of new and innovative solid scale inhibitors based on silver tungstate-loaded KIT-6. The inhibition efficiency of the scale inhibitor increases, and calcite scale inhibitor decreases with increasing pH (2 to8), it proposes that the scale inhibitor was more effective under alkaline conditions. An inhibition efficiency of 99% on calcium carbonate can be achieved at the optimal dosage of 7.5 ppm at 55oC, indicating that the scale inhibitor exhibits a relatively good inhibition performance on calcium carbonate. The use of these materials can potentially lead to more efficient and cost-effective solutions for scaling inhibition in various industrial processes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=produced%20water%20treatment" title="produced water treatment">produced water treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20scale%20inhibitors" title=" solid scale inhibitors"> solid scale inhibitors</a>, <a href="https://publications.waset.org/abstracts/search?q=calcite" title=" calcite"> calcite</a>, <a href="https://publications.waset.org/abstracts/search?q=silver%20tungestate" title=" silver tungestate"> silver tungestate</a>, <a href="https://publications.waset.org/abstracts/search?q=3%20D%20mesoporous%20KIT-6" title=" 3 D mesoporous KIT-6"> 3 D mesoporous KIT-6</a>, <a href="https://publications.waset.org/abstracts/search?q=oilfield%20scales" title=" oilfield scales"> oilfield scales</a>, <a href="https://publications.waset.org/abstracts/search?q=adsorption" title=" adsorption"> adsorption</a> </p> <a href="https://publications.waset.org/abstracts/171177/produced-water-treatment-using-novel-solid-scale-inhibitors-based-on-silver-tungstate-loaded-kit-6-static-and-modeling-evaluation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171177.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> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Rasha%20Hosny&page=2">2</a></li> <li class="page-item"><a class="page-link" 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