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Abdelrahman</title> <meta name="description" content="Search results for: Doaa Abdelrahman"> <meta name="keywords" content="Doaa Abdelrahman"> <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 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action="https://publications.waset.org/abstracts/search"> <div 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="Doaa Abdelrahman"> <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> 72</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Doaa Abdelrahman</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">72</span> Bitcoin, Blockchain and Smart Contract: Attacks and Mitigations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Rasslan">Mohamed Rasslan</a>, <a href="https://publications.waset.org/abstracts/search?q=Doaa%20Abdelrahman"> Doaa Abdelrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20M.%20Nasreldin"> Mahmoud M. Nasreldin</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghada%20Farouk"> Ghada Farouk</a>, <a href="https://publications.waset.org/abstracts/search?q=Heba%20K.%20Aslan"> Heba K. Aslan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Blockchain is a distributed database that endorses transparency while bitcoin is a decentralized cryptocurrency (electronic cash) that endorses anonymity and is powered by blockchain technology. Smart contracts are programs that are stored on a blockchain. Smart contracts are executed when predetermined conditions are fulfilled. Smart contracts automate the agreement execution in order to make sure that all participants immediate-synchronism of the outcome-certainty, without any intermediary's involvement or time loss. Currently, the Bitcoin market worth billions of dollars. Bitcoin could be transferred from one purchaser to another without the need for an intermediary bank. Network nodes through cryptography verify bitcoin transactions, which are registered in a public-book called “blockchain”. Bitcoin could be replaced by other coins, merchandise, and services. Rapid growing of the bitcoin market-value, encourages its counterparts to make use of its weaknesses and exploit vulnerabilities for profit. Moreover, it motivates scientists to define known vulnerabilities, offer countermeasures, and predict future threats. In his paper, we study blockchain technology and bitcoin from the attacker’s point of view. Furthermore, mitigations for the attacks are suggested, and contemporary security solutions are discussed. Finally, research methods that achieve strict security and privacy protocol are elaborated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cryptocurrencies" title="Cryptocurrencies">Cryptocurrencies</a>, <a href="https://publications.waset.org/abstracts/search?q=Blockchain" title=" Blockchain"> Blockchain</a>, <a href="https://publications.waset.org/abstracts/search?q=Bitcoin" title=" Bitcoin"> Bitcoin</a>, <a href="https://publications.waset.org/abstracts/search?q=Smart%20Contracts" title=" Smart Contracts"> Smart Contracts</a>, <a href="https://publications.waset.org/abstracts/search?q=Peer-to-Peer%20Network" title=" Peer-to-Peer Network"> Peer-to-Peer Network</a>, <a href="https://publications.waset.org/abstracts/search?q=Security%20Issues" title=" Security Issues"> Security Issues</a>, <a href="https://publications.waset.org/abstracts/search?q=Privacy%20Techniques" title=" Privacy Techniques"> Privacy Techniques</a> </p> <a href="https://publications.waset.org/abstracts/164642/bitcoin-blockchain-and-smart-contract-attacks-and-mitigations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164642.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">82</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">71</span> 3D Scanning Documentation and X-Ray Radiography Examination for Ancient Egyptian Canopic Jar</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Mohamed%20Abdelrahman">Abdelrahman Mohamed Abdelrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Canopic jars are one of the vessels of funerary nature used by the ancient Egyptian in mummification process that were used to save the viscera of the mummified body after being extracted from the body and treated. Canopic jars are made of several types of materials like Limestone, Alabaster, and Pottery. The studied canopic jar dates back to Late period, located in the Grand Egyptian Museum (GEM), Giza, Egypt. This jar carved from limestone with carved hieroglyphic inscriptions, and it filled and closed by mortar from inside. Some aspects of damage appeared in the jar, such as dust, dirts, classification, wide crack, weakness of limestone. In this study, we used documentation and investigation modern techniques to document and examine the jar. 3D scanning and X-ray Radiography imaging used in applied study. X-ray imaging showed that the mortar was placed at a time when the jar contained probably viscera where the mortar appeared that not reach up to the base of the inner jar. Through the three-dimensional photography, the jar was documented, and we have 3D model of the jar, and now we have the ability through the computer to see any part of the jar in all its details. After that, conservation procedures have been applied with high accuracy to conserve the jar, including mechanical, wet, and chemical cleaning, filling wide crack in the body of the jar using mortar consisting of calcium carbonate powder mixing with primal E330 S, and consolidation, so the limestone became strong after using paraloid B72 2% concentrate as a consolidate material. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=vessel" title="vessel">vessel</a>, <a href="https://publications.waset.org/abstracts/search?q=limestone" title=" limestone"> limestone</a>, <a href="https://publications.waset.org/abstracts/search?q=canopic%20jar" title=" canopic jar"> canopic jar</a>, <a href="https://publications.waset.org/abstracts/search?q=mortar" title=" mortar"> mortar</a>, <a href="https://publications.waset.org/abstracts/search?q=3D%20scanning" title=" 3D scanning"> 3D scanning</a>, <a href="https://publications.waset.org/abstracts/search?q=X-ray%20radiography" title=" X-ray radiography"> X-ray radiography</a> </p> <a href="https://publications.waset.org/abstracts/164624/3d-scanning-documentation-and-x-ray-radiography-examination-for-ancient-egyptian-canopic-jar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164624.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">77</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">70</span> Prognostic Implication of Nras Gene Mutations in Egyptian Adult Acute Myeloid Leukemia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20M.%20Elghannam">Doaa M. Elghannam</a>, <a href="https://publications.waset.org/abstracts/search?q=Nashwa%20Khayrat%20Abousamra"> Nashwa Khayrat Abousamra</a>, <a href="https://publications.waset.org/abstracts/search?q=Doaa%20A.%20Shahin"> Doaa A. Shahin</a>, <a href="https://publications.waset.org/abstracts/search?q=Enas%20F.%20Goda"> Enas F. Goda</a>, <a href="https://publications.waset.org/abstracts/search?q=Hanan%20Azzam"> Hanan Azzam</a>, <a href="https://publications.waset.org/abstracts/search?q=Emad%20Azmy"> Emad Azmy</a>, <a href="https://publications.waset.org/abstracts/search?q=Manal%20Salah%20El-Din"> Manal Salah El-Din</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: The pathogenesis of acute myeloid leukemia (AML) involves the cooperation of mutations promoting proliferation/survival and those impairing differentiation. Point mutations of the NRAS gene are the most frequent somatic mutations causing aberrant signal-transduction in acute myeloid leukemia (AML). Aim: The present work was conducted to study the frequency and prognostic significance of NRAS gene mutations (NRASmut) in de novo Egyptian adult AML. Material and methods: Bone marrow specimens from 150 patients with de novo acute myeloid leukemia and controls were analyzed by genomic PCR-SSCP at codons 12, 13 (exon 1), and 61 (exon 2) for NRAS mutations. Results: NRAS gene mutations was found in 19/150 (12.7%) AML cases, represented more frequently in the FAB subtype M4eo (P = 0.028), and at codon 12, 13 (14of 19; 73.7%). Patients with NRASmut had a significant lower peripheral marrow blasts (P = 0.004, P=0.03) and non significant improved clinical outcome than patients without the mutation. Complete remission rate was (63.2% vs 56.5%; p=0.46), resistant disease (15.8% vs 23.6%; p=0.51), three years overall survival (44% vs 42%; P = 0.85) and disease free survival (42.1% vs 38.9%, P = 0.74). Multivariate analysis showed that age was the strongest unfavorable factor for overall survival (relative risk [RR], 1.9; P = .002), followed by cytogenetics (P = .004). FAB types, NRAS mutation, and leukocytosis were less important. Conclusions: NRAS gene mutation frequency and spectrum differ between biologically distinct subtypes of AML but do not significantly influence prognosis and clinical outcome. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=NRAS%20Gene" title="NRAS Gene">NRAS Gene</a>, <a href="https://publications.waset.org/abstracts/search?q=egyptian%20adult" title=" egyptian adult"> egyptian adult</a>, <a href="https://publications.waset.org/abstracts/search?q=acute%20myeloid%20leukemia" title=" acute myeloid leukemia"> acute myeloid leukemia</a>, <a href="https://publications.waset.org/abstracts/search?q=cytogenetics" title=" cytogenetics"> cytogenetics</a> </p> <a href="https://publications.waset.org/abstracts/154231/prognostic-implication-of-nras-gene-mutations-in-egyptian-adult-acute-myeloid-leukemia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154231.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">98</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> Routine pus Swabs for Uncomplicated Abscesses – Do They Alter Our Management Plan?</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Abdelrahman">Abdelrahman Abdelrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Lawrence%20Nip"> Lawrence Nip</a>, <a href="https://publications.waset.org/abstracts/search?q=Seun%20Ikotun"> Seun Ikotun</a>, <a href="https://publications.waset.org/abstracts/search?q=Iman%20Satar"> Iman Satar</a>, <a href="https://publications.waset.org/abstracts/search?q=Anur%20Miah"> Anur Miah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Incision and drainage of an abscess is a common procedure performed by the general surgeon. Pus swabs are often obtained routinely for MC&S.Our study aimed to investigate whether swabs taken at our local institution had any impact on the overall management plan for uncomplicated abscesses. Methods: We retrospectively assessed all patients presenting to University Hospital Lewisham with an abscess between October 2020 – April 2021. Exclusion criteria were recurrent abscesses, patients admitted with sepsis, known inflammatory bowel disease, immunocompromised, and those managed non-operatively. Results: We identified 131 patients who met the inclusion criteria. Two thirds were performed in theatre under general anaesthetic and the other one third under local. 63% of patients had a pus swab collected. Of these, 96% were not followed up by the requesting doctor, and there was no further patient contact. In the other 4%, the organisms cultured were flagged as atypical such as MRSA. In these cases, microbiology advice was that if the patient was clinically well and adequate drainage was achieved, then no furtherantibiotics were required. All patients were discharged before any microbiology results had come back with no subsequent change in the management plan. Average cost of pus swab = £10.10 – potentially cost saving of £1656.4 annually. Conclusion: Our study reveals that the majority of pus swabs taken from uncomplicated abscessesare not followed up by requesting doctor with no impact on the overall management plan. We, therefore, do not recommend the routine use of pus swabs for uncomplicated abscesses. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pus%20swabs" title="pus swabs">pus swabs</a>, <a href="https://publications.waset.org/abstracts/search?q=uncomplated%20abscess" title=" uncomplated abscess"> uncomplated abscess</a>, <a href="https://publications.waset.org/abstracts/search?q=Pus%20MCS" title=" Pus MCS"> Pus MCS</a>, <a href="https://publications.waset.org/abstracts/search?q=follow%20up%20of%20uncomplicated%20abscess" title=" follow up of uncomplicated abscess"> follow up of uncomplicated abscess</a> </p> <a href="https://publications.waset.org/abstracts/144561/routine-pus-swabs-for-uncomplicated-abscesses-do-they-alter-our-management-plan" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/144561.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">177</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 Canaanite Trade Network between the Shores of the Mediterranean Sea</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20El-Shereef">Doaa El-Shereef</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Canaanite civilization was one of the early great civilizations of the Near East, they influenced and been influenced from the civilizations of the ancient world especially the Egyptian and Mesopotamia civilizations. The development of the Canaanite trade started from the Chalcolithic Age to the Iron Age through the oldest trade route in the Middle East. This paper will focus on defining the Canaanites and from where did they come from and the meaning of the term Canaan and how the Ancient Manuscripts define the borders of the land of Canaan and this essay will describe the Canaanite trade route and their exported goods such as cedar wood, and pottery. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=archaeology" title="archaeology">archaeology</a>, <a href="https://publications.waset.org/abstracts/search?q=bronze%20age" title=" bronze age"> bronze age</a>, <a href="https://publications.waset.org/abstracts/search?q=Canaanite" title=" Canaanite"> Canaanite</a>, <a href="https://publications.waset.org/abstracts/search?q=colonies" title=" colonies"> colonies</a>, <a href="https://publications.waset.org/abstracts/search?q=Massilia" title=" Massilia"> Massilia</a>, <a href="https://publications.waset.org/abstracts/search?q=pottery" title=" pottery"> pottery</a>, <a href="https://publications.waset.org/abstracts/search?q=shipwreck" title=" shipwreck"> shipwreck</a>, <a href="https://publications.waset.org/abstracts/search?q=vineyards" title=" vineyards"> vineyards</a> </p> <a href="https://publications.waset.org/abstracts/132607/the-canaanite-trade-network-between-the-shores-of-the-mediterranean-sea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/132607.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">201</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> Design of a Rectifier with Enhanced Efficiency and a High-gain Antenna for Integrated and Compact-size Rectenna Circuit</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rawaa%20Maher">Rawaa Maher</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Allam"> Ahmed Allam</a>, <a href="https://publications.waset.org/abstracts/search?q=Haruichi%20Kanaya"> Haruichi Kanaya</a>, <a href="https://publications.waset.org/abstracts/search?q=Adel%20B.%20Abdelrahman"> Adel B. Abdelrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a compact, high-efficiency integrated rectenna is presented to operate in the 2.45 GHz band. A comparison between two rectifier topologies is performed to verify the benefits of removing the matching network from the rectifier. A rectifier high conversion efficiency of 74.1% is achieved. To complete the rectenna system, a novel omnidirectional antenna with high gain (3.72 dB) and compact size (25 mm * 29 mm) is designed and fabricated. The same antenna is used with a reflector for raising the gain to nearly 8.3 dB. The simulation and measurement results of the antenna are in good agreement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=internet%20of%20things" title="internet of things">internet of things</a>, <a href="https://publications.waset.org/abstracts/search?q=integrated%20rectenna" title=" integrated rectenna"> integrated rectenna</a>, <a href="https://publications.waset.org/abstracts/search?q=rectenna" title=" rectenna"> rectenna</a>, <a href="https://publications.waset.org/abstracts/search?q=RF%20energy%20harvesting" title=" RF energy harvesting"> RF energy harvesting</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20sensor%20networks%28WSN%29" title=" wireless sensor networks(WSN)"> wireless sensor networks(WSN)</a> </p> <a href="https://publications.waset.org/abstracts/146075/design-of-a-rectifier-with-enhanced-efficiency-and-a-high-gain-antenna-for-integrated-and-compact-size-rectenna-circuit" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146075.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">182</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> Vehicle to Vehicle Communication: Collision Avoidance Scenarios</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Emad">Ahmed Emad</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Salah"> Ahmed Salah</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Magdy"> Abdelrahman Magdy</a>, <a href="https://publications.waset.org/abstracts/search?q=Omar%20Rashid"> Omar Rashid</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Adel"> Mohammed Adel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research paper discusses vehicle-to-vehicle technology as an important application of linear algebra. This communication technology represents an efficient and promising application to help to ensure the safety of the drivers by warning them when a crash possibility is close. The major link that combines our topic with linear algebra is the Laplacian matrix. Some main definitions used in the V2V were illustrated, such as VANET and its characteristics. The V2V technology could be applied in different applications with different traffic scenarios and various ways to warn car drivers. These scenarios were simulated programs such as MATLAB and Python to test how the V2V system would respond to the different scenarios and warn the car drivers exposed to the threat of collisions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=V2V%20communication" title="V2V communication">V2V communication</a>, <a href="https://publications.waset.org/abstracts/search?q=vehicle%20to%20vehicle%20scenarios" title=" vehicle to vehicle scenarios"> vehicle to vehicle scenarios</a>, <a href="https://publications.waset.org/abstracts/search?q=VANET" title=" VANET"> VANET</a>, <a href="https://publications.waset.org/abstracts/search?q=FCW" title=" FCW"> FCW</a>, <a href="https://publications.waset.org/abstracts/search?q=EEBL" title=" EEBL"> EEBL</a>, <a href="https://publications.waset.org/abstracts/search?q=IMA" title=" IMA"> IMA</a>, <a href="https://publications.waset.org/abstracts/search?q=Laplacian%20matrix" title=" Laplacian matrix"> Laplacian matrix</a> </p> <a href="https://publications.waset.org/abstracts/156914/vehicle-to-vehicle-communication-collision-avoidance-scenarios" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156914.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">163</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> Study of Rheological, Physic-Mechanical and Morphological Properties of Nitrile Butadiene Rubber Loaded with Organo-Bentonite</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20S.%20Mahmoud">Doaa S. Mahmoud</a>, <a href="https://publications.waset.org/abstracts/search?q=Nivin%20M.%20Ahmed"> Nivin M. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Salwa%20H.%20El-Sabbagh"> Salwa H. El-Sabbagh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The rheometric characteristics and physicomechanical properties of bentonite / acrylonitrile-butadiene rubber (NBR) were investigated. The influences of adding bentonite (Bt) and / or modified bentonite (organo-Bt) to the rubber were observed. Scanning electron microscopy (SEM) showed that the rubber chains may be confined within the interparticle space and the Bt particles presented a physical dispersion in NBR matrix. Bentonite (Bt) was modified with tetra butyl phosphonium bromide (TBP) in order to produce organo-Bt. The modification was carried out at 0.5, 1 and 2 cation exchange capacity (CEC) of bentonite. Results showed that the maximum torque of organo-Bt / NBR composite increases at high bentonite loading. The scorch time (tS2) and cure time (tC90) of the organo-Bt / NBR composites decreased simultaneously relative to those of the neat NBR. The prepared composite exhibited significant improvement in mechanical compared with that of neat NBR. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acrylonitrile-butadiene%20rubber" title="acrylonitrile-butadiene rubber">acrylonitrile-butadiene rubber</a>, <a href="https://publications.waset.org/abstracts/search?q=bentonite" title=" bentonite"> bentonite</a>, <a href="https://publications.waset.org/abstracts/search?q=composites" title=" composites"> composites</a>, <a href="https://publications.waset.org/abstracts/search?q=physico-mechanical%20properties" title=" physico-mechanical properties"> physico-mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/71828/study-of-rheological-physic-mechanical-and-morphological-properties-of-nitrile-butadiene-rubber-loaded-with-organo-bentonite" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/71828.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">264</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> Three-Dimensional Numerical Investigation for Reinforced Concrete Slabs with Opening </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Elsehsah">Abdelrahman Elsehsah</a>, <a href="https://publications.waset.org/abstracts/search?q=Hany%20Madkour"> Hany Madkour</a>, <a href="https://publications.waset.org/abstracts/search?q=Khalid%20Farah"> Khalid Farah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article presents a 3-D modified non-linear elastic model in the strain space. The Helmholtz free energy function is introduced with the existence of a dissipation potential surface in the space of thermodynamic conjugate forces. The constitutive equation and the damage evolution were derived as well. The modified damage has been examined to model the nonlinear behavior of reinforced concrete (RC) slabs with an opening. A parametric study with RC was carried out to investigate the impact of different factors on the behavior of RC slabs. These factors are the opening area, the opening shape, the place of opening, and the thickness of the slabs. And the numerical results have been compared with the experimental data from literature. Finally, the model showed its ability to be applied to the structural analysis of RC slabs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=damage%20mechanics" title="damage mechanics">damage mechanics</a>, <a href="https://publications.waset.org/abstracts/search?q=3-D%20numerical%20analysis" title=" 3-D numerical analysis"> 3-D numerical analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=RC" title=" RC"> RC</a>, <a href="https://publications.waset.org/abstracts/search?q=slab%20with%20opening" title=" slab with opening"> slab with opening</a> </p> <a href="https://publications.waset.org/abstracts/97463/three-dimensional-numerical-investigation-for-reinforced-concrete-slabs-with-opening" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/97463.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">174</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> Computational Models for Accurate Estimation of Joint Forces</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Elnour%20Abdelrahman%20Eltayeb">Ibrahim Elnour Abdelrahman Eltayeb</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Computational modelling is a method used to investigate joint forces during a movement. It can get high accuracy in the joint forces via subject-specific models. However, the construction of subject-specific models remains time-consuming and expensive. The purpose of this paper was to identify what alterations we can make to generic computational models to get a better estimation of the joint forces. It appraised the impact of these alterations on the accuracy of the estimated joint forces. It found different strategies of alterations: joint model, muscle model, and an optimisation problem. All these alterations affected joint contact force accuracy, so showing the potential for improving the model predictions without involving costly and time-consuming medical images. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=joint%20force" title="joint force">joint force</a>, <a href="https://publications.waset.org/abstracts/search?q=joint%20model" title=" joint model"> joint model</a>, <a href="https://publications.waset.org/abstracts/search?q=optimisation%20problem" title=" optimisation problem"> optimisation problem</a>, <a href="https://publications.waset.org/abstracts/search?q=validation" title=" validation"> validation</a> </p> <a href="https://publications.waset.org/abstracts/158393/computational-models-for-accurate-estimation-of-joint-forces" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158393.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">170</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> Survey on Malware Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20Wael">Doaa Wael</a>, <a href="https://publications.waset.org/abstracts/search?q=Naswa%20Abdelbaky"> Naswa Abdelbaky</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Malware is malicious software that is built to cause destructive actions and damage information systems and networks. Malware infections increase rapidly, and types of malware have become more sophisticated, which makes the malware detection process more difficult. On the other side, the Internet of Things IoT technology is vulnerable to malware attacks. These IoT devices are always connected to the internet and lack security. This makes them easy for hackers to access. These malware attacks are becoming the go-to attack for hackers. Thus, in order to deal with this challenge, new malware detection techniques are needed. Currently, building a blockchain solution that allows IoT devices to download any file from the internet and to verify/approve whether it is malicious or not is the need of the hour. In recent years, blockchain technology has stood as a solution to everything due to its features like decentralization, persistence, and anonymity. Moreover, using blockchain technology overcomes some difficulties in malware detection and improves the malware detection ratio over-than the techniques that do not utilize blockchain technology. In this paper, we study malware detection models which are based on blockchain technology. Furthermore, we elaborate on the effect of blockchain technology in malware detection, especially in the android environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=malware%20analysis" title="malware analysis">malware analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=blockchain" title=" blockchain"> blockchain</a>, <a href="https://publications.waset.org/abstracts/search?q=malware%20attacks" title=" malware attacks"> malware attacks</a>, <a href="https://publications.waset.org/abstracts/search?q=malware%20detection%20approaches" title=" malware detection approaches"> malware detection approaches</a> </p> <a href="https://publications.waset.org/abstracts/164823/survey-on-malware-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164823.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">87</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> Study of Pottery And Glazed Canopic Vessels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Mohamed">Abdelrahman Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The ancient Egyptians used canopic vessels in embalming operations in order to preserve the guts of the mummified corpse. Canopic vessels were made of many materials, including pottery and glazed pottery. In this research, we study a pottery canopic vessel and a glazed pottery vessel. An analysis to find out the compounds and elements of the materials from which the container is made and the colors, and also to make some analysis for the organic materials present inside it, such as the Fourier Transform Infrared Spectroscopy analysis and the Gas chromatograph mass spectrometers analysis of the organic residue. Through the study and analysis, it was proved that some of the materials present in the pot were coniferous oil and animal fats. In the other pot, the analysis showed the presence of some plant resins (mastic) inside rolls of linen. Restoration operations were carried out, such as mechanical cleaning, strengthening, and completing the reinforcement of the pots. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=canopic%20jar" title="canopic jar">canopic jar</a>, <a href="https://publications.waset.org/abstracts/search?q=embalming" title=" embalming"> embalming</a>, <a href="https://publications.waset.org/abstracts/search?q=FTIR" title=" FTIR"> FTIR</a>, <a href="https://publications.waset.org/abstracts/search?q=GCMS" title=" GCMS"> GCMS</a>, <a href="https://publications.waset.org/abstracts/search?q=linen." title=" linen."> linen.</a> </p> <a href="https://publications.waset.org/abstracts/164726/study-of-pottery-and-glazed-canopic-vessels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/164726.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">84</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> EEG-Based Screening Tool for School Student’s Brain Disorders Using Machine Learning Algorithms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20A.%20Ramzy">Abdelrahman A. Ramzy</a>, <a href="https://publications.waset.org/abstracts/search?q=Bassel%20S.%20Abdallah"> Bassel S. Abdallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20E.%20Bahgat"> Mohamed E. Bahgat</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarah%20M.%20Abdelkader"> Sarah M. Abdelkader</a>, <a href="https://publications.waset.org/abstracts/search?q=Sherif%20H.%20ElGohary"> Sherif H. ElGohary</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Attention-Deficit/Hyperactivity Disorder (ADHD), epilepsy, and autism affect millions of children worldwide, many of which are undiagnosed despite the fact that all of these disorders are detectable in early childhood. Late diagnosis can cause severe problems due to the late treatment and to the misconceptions and lack of awareness as a whole towards these disorders. Moreover, electroencephalography (EEG) has played a vital role in the assessment of neural function in children. Therefore, quantitative EEG measurement will be utilized as a tool for use in the evaluation of patients who may have ADHD, epilepsy, and autism. We propose a screening tool that uses EEG signals and machine learning algorithms to detect these disorders at an early age in an automated manner. The proposed classifiers used with epilepsy as a step taken for the work done so far, provided an accuracy of approximately 97% using SVM, Naïve Bayes and Decision tree, while 98% using KNN, which gives hope for the work yet to be conducted. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ADHD" title="ADHD">ADHD</a>, <a href="https://publications.waset.org/abstracts/search?q=autism" title=" autism"> autism</a>, <a href="https://publications.waset.org/abstracts/search?q=epilepsy" title=" epilepsy"> epilepsy</a>, <a href="https://publications.waset.org/abstracts/search?q=EEG" title=" EEG"> EEG</a>, <a href="https://publications.waset.org/abstracts/search?q=SVM" title=" SVM"> SVM</a> </p> <a href="https://publications.waset.org/abstracts/108018/eeg-based-screening-tool-for-school-students-brain-disorders-using-machine-learning-algorithms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108018.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">190</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> Impact of Health Sector Economic Reforms in Underdeveloped Countries</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Haga%20Abdelrahman%20Elimam">Haga Abdelrahman Elimam</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the connotation, and some of the realistic implications, of the economic reform of health sector in under developed countries. The paper investigates the issues that economic reforms have to address, and the policy targets they are considered to accomplish. The work argues that the development of economic reform is not connected only with understanding the priorities and refining them, furthermore with reformation and restructuring the organizations through which health policies are employed. Considering various organizational values, that are likely to be regular to all economic reform programs, a regulatory approach to institutional reform is unsuitable. The paper further investigates the selection of economic reform that may as well influence via technical suggestions and analysis, but the verdict to continue, and the consequent success of execution, eventually depends on the progressive political sustainability. The paper concludes by giving examples of institutional reforms from various underdeveloped countries and includes recommendation of the responsibility and control of donor organizations. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=economic%20reform" title="economic reform">economic reform</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20sector" title=" health sector"> health sector</a>, <a href="https://publications.waset.org/abstracts/search?q=underdeveloped%20countries" title=" underdeveloped countries"> underdeveloped countries</a>, <a href="https://publications.waset.org/abstracts/search?q=technical%20suggestions" title=" technical suggestions"> technical suggestions</a> </p> <a href="https://publications.waset.org/abstracts/27909/impact-of-health-sector-economic-reforms-in-underdeveloped-countries" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27909.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">423</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> The Effect of the Thermal Temperature and Injected Current on Laser Diode 808 nm Output Power</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hassan%20H.%20Abuelhassan">Hassan H. Abuelhassan</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Ali%20Badawi"> M. Ali Badawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20A.%20Elbadawi"> Abdelrahman A. Elbadawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Adam%20A.%20Elbashir"> Adam A. Elbashir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the effect of the injected current and temperature into the output power of the laser diode module operating at 808nm were applied, studied and discussed. Low power diode laser was employed as a source. The experimental results were demonstrated and then the output power of laser diode module operating at 808nm was clearly changed by the thermal temperature and injected current. The output power increases by the increasing the injected current and temperature. We also showed that the increasing of the injected current results rising in heat, which also, results into decreasing of the laser diode output power during the highest temperature as well. The best ranges of characteristics made by diode module operating at 808nm were carefully handled and determined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=laser%20diode" title="laser diode">laser diode</a>, <a href="https://publications.waset.org/abstracts/search?q=light%20amplification" title=" light amplification"> light amplification</a>, <a href="https://publications.waset.org/abstracts/search?q=injected%20current" title=" injected current"> injected current</a>, <a href="https://publications.waset.org/abstracts/search?q=output%20power" title=" output power"> output power</a> </p> <a href="https://publications.waset.org/abstracts/49324/the-effect-of-the-thermal-temperature-and-injected-current-on-laser-diode-808-nm-output-power" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49324.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">386</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> The Public Policy of Energy Subsidies Reform in Egypt</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20Nounou">Doaa Nounou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research examines the public policy energy subsidies reform efforts in Egypt since 2014. Egypt’s widely used energy subsidies have been controversial since they were first introduced, as they inadequately target the poorest part of the population. Also, their effect on economic development and democratic transition became very challenging in recent years. This research argues that although subsidy reform is a highly politicalized issue in democratizing countries, there are still a number of pragmatic public policies that can be applied to make the subsidy system function more efficiently and at the same time decrease inequality which could facilitate a more orderly and peaceful transition to democracy. Therefore, this research attempts to study the role of the executive branch in reforming the subsidy programmes to support the poor and bring about structural changes to achieve social justice and economic growth. This research also attempts to analyze the role of the military and civil society in reforming the subsidy system. Moreover, it attempts to discuss the role of the state media in social mobilization to rationalize consumption and its contribution to subsidies reform. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=subsidies" title="subsidies">subsidies</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20policy" title=" public policy"> public policy</a>, <a href="https://publications.waset.org/abstracts/search?q=political%20economy" title=" political economy"> political economy</a>, <a href="https://publications.waset.org/abstracts/search?q=democratization" title=" democratization"> democratization</a>, <a href="https://publications.waset.org/abstracts/search?q=equality" title=" equality"> equality</a> </p> <a href="https://publications.waset.org/abstracts/68662/the-public-policy-of-energy-subsidies-reform-in-egypt" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68662.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">219</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> Enhancing the Dyeability and Performance of Recycled Polyethylene Terephthalate with Hyperbranched Polyester</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Haroon%20Abdelrahman%20Mohamed%20Saeed">Haroon Abdelrahman Mohamed Saeed</a>, <a href="https://publications.waset.org/abstracts/search?q=Hongjun%20Yang"> Hongjun Yang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aims to examine the impact of hyperbranched polyester (AA-Ph) on the dyeability and color fastness of recycled poly (ethylene terephthalate) (RPET) fabric. AA-Ph was synthesized through single-step melt polycondensation of adipic acid (AA) and phloroglucinol (Ph) and then incorporated into RPET before spinning. The addition of AA-Ph significantly improves the dye uptake of recycled PET when dyed with disperse dye blue 56 due to the introduction of polar groups and aromatic rings. The blends RPET-3 and RPET-5 show strong abrasion resistance, dyeability, and washing fastness. Furthermore, these blends exhibit high moisture absorbance owing to the polar groups and aromatic structures, as demonstrated by exhaustion tests, which enhance perspiration absorption for added comfort in apparel. Overall, RPET-3 and RPET-5 blends are well-suited for various textile applications, especially in garment manufacturing. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=recycled%20poly%20%28ethylene%20terephthalate%29" title="recycled poly (ethylene terephthalate)">recycled poly (ethylene terephthalate)</a>, <a href="https://publications.waset.org/abstracts/search?q=hyperbranched%20polyester" title=" hyperbranched polyester"> hyperbranched polyester</a>, <a href="https://publications.waset.org/abstracts/search?q=dyeability" title=" dyeability"> dyeability</a>, <a href="https://publications.waset.org/abstracts/search?q=dye%20blue" title=" dye blue"> dye blue</a> </p> <a href="https://publications.waset.org/abstracts/194927/enhancing-the-dyeability-and-performance-of-recycled-polyethylene-terephthalate-with-hyperbranched-polyester" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/194927.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">4</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> Knowledge Management Strategies as a Tool to Change the Organizational Culture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20Abbas%20Zaher">Doaa Abbas Zaher</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For the past two decades demand for knowledge has been increasing. Management of society’s knowledge has far reaching effects to economic growth through increased capacity to complete viable activities. Organizations use information technology to effect organizational change. This is a challenge for the less developed nations whose capacity to integrate knowledge in core functions is limited. This creates organizational problems as there is global competition amongst organizations. Cross-cultural perceptions influence difference knowledge Management. This study provides a cross-cultural analysis on the influence in knowledge culture in Japan and Saudi Arabia to effect change in organizations. Since different countries adopt different knowledge management strategies, this dictates the state of organizational development through enriched organizational culture. The research uses a mixed approach design to collect data from primary and secondary sources. Primary source will use the questionnaires while secondary sources uses case analysis from books, articles, reports, and journals. The study will take a period of three years to come up with a complete paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=knowledge%20management" title="knowledge management">knowledge management</a>, <a href="https://publications.waset.org/abstracts/search?q=organizational%20culture" title=" organizational culture"> organizational culture</a>, <a href="https://publications.waset.org/abstracts/search?q=information" title=" information"> information</a>, <a href="https://publications.waset.org/abstracts/search?q=society%20knowledge" title=" society knowledge"> society knowledge</a> </p> <a href="https://publications.waset.org/abstracts/2734/knowledge-management-strategies-as-a-tool-to-change-the-organizational-culture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2734.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">358</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> Nitrogen-Doped Ultrananocrystalline Diamond/Hydrogenated Amorphous Carbon Composite Films Prepared by Coaxial Arc Plasma Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Zkria">Abdelrahman Zkria</a>, <a href="https://publications.waset.org/abstracts/search?q=Tsuyoshi%20Yoshitake"> Tsuyoshi Yoshitake</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Diamond is one of the most interesting semiconducting carbon materials owing to its unique physical and chemical properties, yet its application in electronic devices is limited due to the difﬁculty of realizing n-type conduction by nitrogen doping. In contrast Ultrananocrystalline diamond with diamond grains of about 3–5 nm in diameter have attracted much attention for device-oriented applications because they may enable the realization of n-type doping with nitrogen. In this study, nitrogen-doped Ultra-Nanocrystalline diamond films were prepared by coaxial arc plasma deposition (CAPD) method, the nitrogen content was estimated by X-ray photoemission spectroscopy (XPS). The electrical conductivity increased with increasing nitrogen contents. Heterojunction diodes with p-type Si were fabricated and evaluated based on current–voltage (I–V) and capacitance–voltage (C–V) characteristics measured in dark at room temperature. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=heterojunction%20diodes" title="heterojunction diodes">heterojunction diodes</a>, <a href="https://publications.waset.org/abstracts/search?q=hopping%20conduction%20mechanism" title=" hopping conduction mechanism"> hopping conduction mechanism</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrogen-doping" title=" nitrogen-doping"> nitrogen-doping</a>, <a href="https://publications.waset.org/abstracts/search?q=ultra-nanocrystalline%20diamond" title=" ultra-nanocrystalline diamond"> ultra-nanocrystalline diamond</a> </p> <a href="https://publications.waset.org/abstracts/44205/nitrogen-doped-ultrananocrystalline-diamondhydrogenated-amorphous-carbon-composite-films-prepared-by-coaxial-arc-plasma-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44205.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">303</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> Evaluation of the Role of Circulating Long Non-Coding RNA H19 as a Promising Biomarker in Plasma of Patients with Gastric Cancer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20Hashad">Doaa Hashad</a>, <a href="https://publications.waset.org/abstracts/search?q=Amany%20Elbanna"> Amany Elbanna</a>, <a href="https://publications.waset.org/abstracts/search?q=Abeer%20Ibrahim"> Abeer Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Gihan%20Khedr"> Gihan Khedr</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: H19 is one of the long non coding RNAs (LncRNA) that is related to the progression of many diseases including cancers. This work was carried out to study the level of the long non-coding RNA; H119, in plasma of patients with gastric cancer (GC) and to assess its significance in their clinical management. Methods: A total of sixty-two participants were enrolled in the present study. The first group included thirty-two GC patients, while the second group was formed of thirty age and sex matched healthy volunteers serving as a control group. Plasma samples were used to assess H19 gene expression using real time quantitative PCR technique. Results: H19 expression was up-regulated in GC patients with positive correlation to TNM cancer stages. Conclusions: Up-regulation of H19 is closely associated with gastric cancer and correlates well with tumor staging. Convenient, efficient quantification of H19 in plasma using real time PCR technique implements its role as a potential noninvasive prognostic biomarker in gastric cancer, that predicts patient’s outcome and most importantly as a novel target in gastric cancer treatment with better performance achieved on using both CEA and H19 simultaneously. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biomarker" title="biomarker">biomarker</a>, <a href="https://publications.waset.org/abstracts/search?q=gastric" title=" gastric"> gastric</a>, <a href="https://publications.waset.org/abstracts/search?q=cancer" title=" cancer"> cancer</a>, <a href="https://publications.waset.org/abstracts/search?q=LncRNA" title=" LncRNA"> LncRNA</a> </p> <a href="https://publications.waset.org/abstracts/45826/evaluation-of-the-role-of-circulating-long-non-coding-rna-h19-as-a-promising-biomarker-in-plasma-of-patients-with-gastric-cancer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45826.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">318</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> Theory about the Gebel El-Arak Knife: Egyptian Knife with Canaanite Relief</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20El-Shereef">Doaa El-Shereef</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper will focus on proving a theory that it is an Egyptian knife with Canaanite relief and will discuss the nature of the Gebel el-Arak Knife and the civilization to which it belongs and the relationship of the Canaanite deity with Mount Abydos in Egypt, and the influence between the ancient Egyptian religion and the Canaanite religion and their effect on each other. Finally, the paper will discuss in full detail the engraving of the two faces of the knife handle and analyze the register on the front face, which is the scene of the two lions engraved, and between them, an old man symbolized as the deity in the middle and compared it with other drawings similar in the Egyptian civilization. The paper will also discuss the registers on the back face, which are the engravings of a battle, soldiers, uniforms, and boats, and how the back face describes a water battle between three Egyptian boats and two foreign ships. In addition, it will prove that those foreign ships were not Mesopotamian ships because, in the period to which the knife of Gebel Al-Arak belongs, between 3300-3100 BC, there were no battles or trade exchanges between Egypt and Mesopotamia on sea routes. However, there was already a strong land and sea trade between Canaan and Egypt during Chalcolithic Age (4500-3500 BC), as described in many primary sources. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Canaan" title="Canaan">Canaan</a>, <a href="https://publications.waset.org/abstracts/search?q=Egypt" title=" Egypt"> Egypt</a>, <a href="https://publications.waset.org/abstracts/search?q=Gebel%20el-Arak%20Knife" title=" Gebel el-Arak Knife"> Gebel el-Arak Knife</a>, <a href="https://publications.waset.org/abstracts/search?q=Louvre" title=" Louvre"> Louvre</a> </p> <a href="https://publications.waset.org/abstracts/140037/theory-about-the-gebel-el-arak-knife-egyptian-knife-with-canaanite-relief" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140037.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">172</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> 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">50</span> Reliability of Diffusion Tensor Imaging in Differentiation of Salivary Gland Tumors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sally%20Salah%20El%20Menshawy">Sally Salah El Menshawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghada%20M.%20Ahmed%20GabAllah"> Ghada M. Ahmed GabAllah</a>, <a href="https://publications.waset.org/abstracts/search?q=Doaa%20Khedr%20M.%20Khedr"> Doaa Khedr M. Khedr</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Our study aims to detect the diagnostic role of DTI in the differentiation of salivary glands benign and malignant lesions. Results: Our study included 50 patients (25males and 25 females) divided into 4 groups (benign lesions n=20, malignant tumors n=13, post-operative changes n=10 and normal n=7). 28 patients were with parotid gland lesions, 4 patients were with submandibular gland lesions and only 1 case with sublingual gland affection. The mean fractional anisotropy (FA) and apparent diffusion coefficient (ADC) of malignant salivary gland tumors (n = 13) (0.380±0.082 and 0.877±0.234× 10⁻³ mm² s⁻¹) were significantly different (P<0.001) than that of benign tumors (n = 20) (0.147±0.03 and 1.47±0.605 × 10⁻³ mm² s⁻¹), respectively. The mean FA and ADC of post-operative changes (n = 10) were (0.211±0.069 and 1.63±0.20× 10⁻³ mm² s⁻¹) while that of normal glands (n =7) was (0.251±0.034and 1.54±0.29× 10⁻³ mm² s⁻¹), respectively. Using ADC to differentiate malignant lesions from benign lesions has an (AUC) of 0.810, with an accuracy of 69.7%. ADC used to differentiate malignant lesions from post-operative changes has (AUC) of 1.0, and an accuracy of 95.7%. FA used to discriminate malignant from benign lesions has (AUC) of 1.0, and an accuracy of 93.9%. FA used to differentiate malignant from post-operative changes has (AUC) of 0.923, and an accuracy of 95.7%. Combined FA and ADC used to differentiate malignant from benign lesions has (AUC) of 1.0, and an accuracy of 100%. Combined FA and ADC used to differentiate malignant from post-operative changes has (AUC) of 1.0, and an accuracy of 100%. Conclusion: Combined FA and ADC can differentiate malignant tumors from benign salivary gland lesions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diffusion%20tensor%20imaging" title="diffusion tensor imaging">diffusion tensor imaging</a>, <a href="https://publications.waset.org/abstracts/search?q=MRI" title=" MRI"> MRI</a>, <a href="https://publications.waset.org/abstracts/search?q=salivary%20gland" title=" salivary gland"> salivary gland</a>, <a href="https://publications.waset.org/abstracts/search?q=tumors" title=" tumors"> tumors</a> </p> <a href="https://publications.waset.org/abstracts/154784/reliability-of-diffusion-tensor-imaging-in-differentiation-of-salivary-gland-tumors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154784.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">109</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> Rejuvenate: Face and Body Retouching Using Image Inpainting</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hossam%20Abdelrahman">Hossam Abdelrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Sama%20Rostom"> Sama Rostom</a>, <a href="https://publications.waset.org/abstracts/search?q=Reem%20Yassein"> Reem Yassein</a>, <a href="https://publications.waset.org/abstracts/search?q=Yara%20Mohamed"> Yara Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Salma%20Salah"> Salma Salah</a>, <a href="https://publications.waset.org/abstracts/search?q=Nour%20Awny"> Nour Awny</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In today’s environment, people are becoming increasingly interested in their appearance. However, they are afraid of their unknown appearance after a plastic surgery or treatment. Accidents, burns and genetic problems such as bowing of body parts of people have a negative impact on their mental health with their appearance and this makes them feel uncomfortable and underestimated. The approach presents a revolutionary deep learning-based image inpainting method that analyses the various picture structures and corrects damaged images. In this study, A model is proposed based on the in-painting of medical images with Stable Diffusion Inpainting method. Reconstructing missing and damaged sections of an image is known as image inpainting is a key progress facilitated by deep neural networks. The system uses the input of the user of an image to indicate a problem, the system will then modify the image and output the fixed image, facilitating for the patient to see the final result. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=generative%20adversarial%20network" title="generative adversarial network">generative adversarial network</a>, <a href="https://publications.waset.org/abstracts/search?q=large%20mask%20inpainting" title=" large mask inpainting"> large mask inpainting</a>, <a href="https://publications.waset.org/abstracts/search?q=stable%20diffusion%20inpainting" title=" stable diffusion inpainting"> stable diffusion inpainting</a>, <a href="https://publications.waset.org/abstracts/search?q=plastic%20surgery" title=" plastic surgery"> plastic surgery</a> </p> <a href="https://publications.waset.org/abstracts/171208/rejuvenate-face-and-body-retouching-using-image-inpainting" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/171208.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">74</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> Advanced Digital Manufacturing: Case Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Abdelazim">Abdelrahman Abdelazim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Most industries are looking for technologies that are easy to use, efficient and fast to accomplish. To implement these, factories tend to use advanced systems that could alter complicity to simplicity and rudimentary to advancement. Cloud Manufacturing is a new movement that aims to mirror and integrate cloud computing into manufacturing. Amongst cloud manufacturing various advantages are decreasing the human involvements and increasing the dependency on automated machines, which in turns decreases human errors and increases efficiency. A reliable and extraordinary performance processes with minimum errors are highly desired factors of today’s manufacturers. At the glance it seems to be the best alternative, however, the implementation of a cloud system can be very challenging. This work investigates cloud manufacturing in details, it outlines its advantages and disadvantages by converting a local factory in Kuwait to a cloud-ready system. Initially the flow of the factory’s manufacturing process has been analyzed identifying the bottlenecks and illustrating how cloud manufacturing can eliminate them. Following this an automation process has been analyzed and implemented. A comparison between the process before and after the adaptation has been carried out showing the effects on the cost, the output and the efficiency of the process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cloud%20manufacturing" title="cloud manufacturing">cloud manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=automation" title=" automation"> automation</a>, <a href="https://publications.waset.org/abstracts/search?q=Kuwait%20industrial%20sector" title=" Kuwait industrial sector"> Kuwait industrial sector</a>, <a href="https://publications.waset.org/abstracts/search?q=advanced%20digital%20manufacturing" title=" advanced digital manufacturing"> advanced digital manufacturing</a> </p> <a href="https://publications.waset.org/abstracts/16143/advanced-digital-manufacturing-case-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16143.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">771</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> Level of Behavioral Development for Hepatitis C Virus Cases Versus Their Contacts: Does Infection Make a Difference and What Is Beyond?</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ammal%20M.%20Metwally">Ammal M. Metwally</a>, <a href="https://publications.waset.org/abstracts/search?q=Lobna%20A.%20ElEtreby"> Lobna A. ElEtreby</a>, <a href="https://publications.waset.org/abstracts/search?q=Rehan%20M.%20Saleh"> Rehan M. Saleh</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghada%20Abdrabou"> Ghada Abdrabou</a>, <a href="https://publications.waset.org/abstracts/search?q=Somia%20I.%20Salama"> Somia I. Salama</a>, <a href="https://publications.waset.org/abstracts/search?q=Amira%20Orabi"> Amira Orabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Abdelrahman"> Mohamed Abdelrahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hepatitis C virus infection is a public health threat in Egypt. To control infection, efforts should be spent to encourage healthy behavior. This study aimed to assess the level of behavioral development in order to create a positive environment for the adoption of the recommended behaviors. The study was conducted over one year from Jan. 2011 till Jan. 2012. Knowledge, attitude and behavior of 540 HCV patients and 102 of their contacts were assessed and the level of behavioral development was determined. The study revealed that the majority of patients and contacts knew that HCV infection is dangerous with perceived concern for early diagnosis and treatment. More than 75% knew the correct modes of transmission. The assessment showed positive attitudes towards the recommended practices with the intention to adopt those practices. Strategies to create opportunities to continue the recommended behaviors should be adopted together with the reinforcement of social support. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hepatitis%20C%20virus" title="hepatitis C virus">hepatitis C virus</a>, <a href="https://publications.waset.org/abstracts/search?q=level%20of%20behavioral%20development" title=" level of behavioral development"> level of behavioral development</a>, <a href="https://publications.waset.org/abstracts/search?q=recommended%20behaviors" title=" recommended behaviors"> recommended behaviors</a> </p> <a href="https://publications.waset.org/abstracts/2281/level-of-behavioral-development-for-hepatitis-c-virus-cases-versus-their-contacts-does-infection-make-a-difference-and-what-is-beyond" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2281.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">397</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">46</span> The Current Status of Integrating Information and Communication Technology in Teaching at Sultan Qaboos University</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abdelrahman">Ahmed Abdelrahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abdelraheem"> Ahmed Abdelraheem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> There are many essential factors affecting the integration of information and communication technology (ICT) into teaching and learning, including technology infrastructure, institutional support, professional development, and faculty members’ beliefs regarding ICT integration. The present research project investigated the current status of integrating ICT into teaching and learning at Sultan Qaboos University (SQU). A sample of 220 faculty members from six different colleges and four administrators from the Center of Educational Technology (CET) and the Center for Information Systems (CIS) at SQU in Oman were chosen, and quantitative, qualitative design using a semi-structured questionnaire, interviews and checklists were employed. The findings show that SQU had a high availability of ICT infrastructure in terms of hardware, software, and support services, as well as adequate computer labs for educational purposes. However, the results also indicated that, although SQU provided a series of professional development workshops related to using ICT in teaching, few faculty members were interested. Furthermore, the finding indicated that the degree of ICT integration into teaching at SQU was at a medium level. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=information%20and%20communication%20technology" title="information and communication technology">information and communication technology</a>, <a href="https://publications.waset.org/abstracts/search?q=integration" title=" integration"> integration</a>, <a href="https://publications.waset.org/abstracts/search?q=professional%20development" title=" professional development"> professional development</a>, <a href="https://publications.waset.org/abstracts/search?q=teaching" title=" teaching"> teaching</a> </p> <a href="https://publications.waset.org/abstracts/117012/the-current-status-of-integrating-information-and-communication-technology-in-teaching-at-sultan-qaboos-university" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/117012.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">165</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">45</span> Optimization and Feasibility Analysis of a PV/Wind/ Battery Hybrid Energy Conversion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Doaa%20M.%20Atia">Doaa M. Atia</a>, <a href="https://publications.waset.org/abstracts/search?q=Faten%20H.%20Fahmy"> Faten H. Fahmy</a>, <a href="https://publications.waset.org/abstracts/search?q=Ninet%20M.%20A.%20El-Rahman"> Ninet M. A. El-Rahman</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassan%20T.%20Dorra"> Hassan T. Dorra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, the optimum design for renewable energy system powered an aquaculture pond was determined. Hybrid Optimization Model for Electric Renewable (HOMER) software program, which is developed by U.S National Renewable Energy Laboratory (NREL), is used for analyzing the feasibility of the stand-alone and hybrid system in this study. HOMER program determines whether renewable energy resources satisfy hourly electric demand or not. The program calculates energy balance for every 8760 hours in a year to simulate operation of the system. This optimization compares the demand for the electrical energy for each hour of the year with the energy supplied by the system for that hour and calculates the relevant energy flow for each component in the model. The essential principle is to minimize the total system cost while HOMER ensures control of the system. Moreover the feasibility analysis of the energy system is also studied. Wind speed, solar irradiance, interest rate and capacity shortage are the parameters which are taken into consideration. The simulation results indicate that the hybrid system is the best choice in this study, yielding lower net present cost. Thus, it provides higher system performance than PV or wind stand-alone systems. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wind%20stand-alone%20system" title="wind stand-alone system">wind stand-alone system</a>, <a href="https://publications.waset.org/abstracts/search?q=photovoltaic%20stand-alone%20system" title=" photovoltaic stand-alone system"> photovoltaic stand-alone system</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20system" title=" hybrid system"> hybrid system</a>, <a href="https://publications.waset.org/abstracts/search?q=optimum%20system%20sizing" title=" optimum system sizing"> optimum system sizing</a>, <a href="https://publications.waset.org/abstracts/search?q=feasibility" title=" feasibility"> feasibility</a>, <a href="https://publications.waset.org/abstracts/search?q=cost%20analysis" title=" cost analysis"> cost analysis</a> </p> <a href="https://publications.waset.org/abstracts/3912/optimization-and-feasibility-analysis-of-a-pvwind-battery-hybrid-energy-conversion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3912.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">340</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> Prediction of the Mechanical Power in Wind Turbine Powered Car Using Velocity Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdelrahman%20Alghazali">Abdelrahman Alghazali</a>, <a href="https://publications.waset.org/abstracts/search?q=Youssef%20Kassem"> Youssef Kassem</a>, <a href="https://publications.waset.org/abstracts/search?q=H%C3%BCseyin%20%C3%87amur"> Hüseyin Çamur</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozan%20Erenay"> Ozan Erenay</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Savonius is a drag type vertical axis wind turbine. Savonius wind turbines have a low cut-in speed and can operate at low wind speed. This makes it suitable for electricity or mechanical generation in low-power applications such as individual domestic installations. Therefore, the primary purpose of this work was to investigate the relationship between the type of Savonius rotor and the torque and mechanical power generated. And it was to illustrate how the type of rotor might play an important role in the prediction of mechanical power of wind turbine powered car. The main purpose of this paper is to predict and investigate the aerodynamic effects by means of velocity analysis on the performance of a wind turbine powered car by converting the wind energy into mechanical energy to overcome load that rotates the main shaft. The predicted results based on theoretical analysis were compared with experimental results obtained from literature. The percentage of error between the two was approximately around 20%. Prediction of the torque was done at a wind speed of 4 m/s, and an angular velocity of 130 RPM according to meteorological statistics in Northern Cyprus. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mechanical%20power" title="mechanical power">mechanical power</a>, <a href="https://publications.waset.org/abstracts/search?q=torque" title=" torque"> torque</a>, <a href="https://publications.waset.org/abstracts/search?q=Savonius%20rotor" title=" Savonius rotor"> Savonius rotor</a>, <a href="https://publications.waset.org/abstracts/search?q=wind%20car" title=" wind car"> wind car</a> </p> <a href="https://publications.waset.org/abstracts/73215/prediction-of-the-mechanical-power-in-wind-turbine-powered-car-using-velocity-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73215.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">337</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">43</span> QTAIM View of Metal-Metal Bonding in Trinuclear Mixed-Metal Bridged Ligand Clusters Containing Ruthenium and Osmium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Ezzat%20Al-Kirbasee">Nadia Ezzat Al-Kirbasee</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahlam%20Hussein%20Hassan"> Ahlam Hussein Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Shatha%20Raheem%20Helal%20Alhimidi"> Shatha Raheem Helal Alhimidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Doaa%20Ezzat%20Al-Kirbasee"> Doaa Ezzat Al-Kirbasee</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhsen%20Abood%20Muhsen%20Al-Ibadi"> Muhsen Abood Muhsen Al-Ibadi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Through DFT/QTAIM calculations, we have provided new insights into the nature of the M-M, M-H, M-O, and M-C bonds of the (Cp*Ru)n(Cp*Os)3−n(μ3-O)2(μ-H)(Cp* = η5-C5Me5, n= 3,2,1,0). The topological analysis of the electron density reveals important details of the chemical bonding interactions in the clusters. Calculations confirm the absence of bond critical points (BCP) and the corresponding bond paths (BP) between Ru-Ru, Ru-Os, and Os-Os. The position of bridging hydrides and Oxo atoms coordinated to Ru-Ru, Ru-Os, and Os-Os determines the distribution of the electron densities and which strongly affects the formation of the bonds between these transition metal atoms. On the other hand, the results confirm that the four clusters contain a 6c–12e and 4c–2e bonding interaction delocalized over M3(μ-H)(μ-O)2 and M3(μ-H), respectively, as revealed by the non-negligible delocalization indexes calculations. The small values for electron density ρ(b) above zero, together with the small values, again above zero, for laplacian ∇2ρ(b) and the small negative values for total energy density H(b) are shown by the Ru-H, Os-H, Ru-O, and Os-O bonds in the four clusters are typical of open shell interactions. Also, the topological data for the bonds between Ru and Os atoms with the C atoms of the pentamethylcyclopentadienyl (Cp*) ring ligands are basically similar and show properties very consistent with open shell interactions in the QTAIM classification. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=metal-metal%20and%20metal-ligand%20interactions" title="metal-metal and metal-ligand interactions">metal-metal and metal-ligand interactions</a>, <a href="https://publications.waset.org/abstracts/search?q=organometallic%20complexes" title=" organometallic complexes"> organometallic complexes</a>, <a href="https://publications.waset.org/abstracts/search?q=topological%20analysis" title=" topological analysis"> topological analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=DFT%20and%20QTAIM%20analyses" title=" DFT and QTAIM analyses"> DFT and QTAIM analyses</a> </p> <a href="https://publications.waset.org/abstracts/145093/qtaim-view-of-metal-metal-bonding-in-trinuclear-mixed-metal-bridged-ligand-clusters-containing-ruthenium-and-osmium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145093.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">93</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=Doaa%20Abdelrahman&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Doaa%20Abdelrahman&page=3">3</a></li> <li class="page-item"><a class="page-link" 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