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Abdelgadir El-Bushra</title> <meta name="description" content="Search results for: Osama Abdelgadir El-Bushra"> <meta name="keywords" content="Osama Abdelgadir El-Bushra"> <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 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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="Osama Abdelgadir El-Bushra"> <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> 93</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Osama Abdelgadir El-Bushra</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">93</span> Description of Geotechnical Properties of Jabal Omar</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Abdel%20Gadir%20Malik">Ibrahim Abdel Gadir Malik</a>, <a href="https://publications.waset.org/abstracts/search?q=Dafalla%20Siddig%20Dafalla"> Dafalla Siddig Dafalla</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20Abdelgadir%20El-Bushra"> Osama Abdelgadir El-Bushra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Geological and engineering characteristics of intact rock and the discontinuity surfaces was used to describe and classify rock mass into zones based on mechanical and physical properties. Many conditions terms that affect the rock mas; such as Rock strength, Rock Quality Designation (RQD) value, joint spacing, and condition of joint, water condition with block size, joint roughness, separation, joint hardness, friction angle and weathering were used to classify the rock mass into: Good quality (class II) (RMR values range between 75% and 56%), Good to fair quality (class II to III) (RMR values range between 70% and 55%), Fair quality (class III) (RMR values range between 60% and 50%) and Fair to poor quality (Class III to IV) (RMR values, range between (50% and 35%). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rock%20strength" title="rock strength">rock strength</a>, <a href="https://publications.waset.org/abstracts/search?q=RQD" title=" RQD"> RQD</a>, <a href="https://publications.waset.org/abstracts/search?q=joints" title=" joints"> joints</a>, <a href="https://publications.waset.org/abstracts/search?q=weathering" title=" weathering"> weathering</a> </p> <a href="https://publications.waset.org/abstracts/46804/description-of-geotechnical-properties-of-jabal-omar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46804.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">416</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">92</span> Presuppositions and Implicatures in Four Selected Speeches of Osama Bin Laden's Legitimisation of 'Jihad'</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sawsan%20Al-Saaidi">Sawsan Al-Saaidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghayth%20K.%20Shaker%20Al-Shaibani"> Ghayth K. Shaker Al-Shaibani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates certain linguistics properties of four selected speeches by Al-Qaeda’s former leader Osama bin Laden who legitimated the use of jihad by Muslims in various countries when he was alive. The researchers adopt van Dijk’s (2009; 1998) Socio-Cognitive approach and Ideological Square theory respectively. Socio-Cognitive approach revolves around various cognitive, socio-political, and discursive aspects that can be found in political discourse as in Osama bin Laden’s one. The political discourse can be defined in terms of textual properties and contextual models. Pertaining to the ideological square, it refers to positive self-presentation and negative other-presentation which help to enhance the textual and contextual analyses. Therefore, among the most significant properties in Osama bin Laden’s discourse are the use of presuppositions and implicatures which are based on background knowledge and contextual models as well. Thus, the paper concludes that Osama bin Laden used a number of manipulative strategies which augmented and embellished the use of ‘jihad’ in order to develop a more effective discourse for his audience. In addition, the findings have revealed that bin Laden used different implicit and embedded interpretations of different topics which have been accepted as taken-for-granted truths for him to legitimate Jihad against his enemies. There are many presuppositions in the speeches analysed that result in particular common-sense assumptions and a world-view about the selected speeches. More importantly, the assumptions in the analysed speeches help consolidate the ideological analysis in terms of in-group and out-group members. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Al-Qaeda" title="Al-Qaeda">Al-Qaeda</a>, <a href="https://publications.waset.org/abstracts/search?q=cognition" title=" cognition"> cognition</a>, <a href="https://publications.waset.org/abstracts/search?q=critical%20discourse%20analysis" title=" critical discourse analysis"> critical discourse analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20Bin%20Laden" title=" Osama Bin Laden"> Osama Bin Laden</a>, <a href="https://publications.waset.org/abstracts/search?q=jihad" title=" jihad"> jihad</a>, <a href="https://publications.waset.org/abstracts/search?q=implicature" title=" implicature"> implicature</a>, <a href="https://publications.waset.org/abstracts/search?q=legitimisation" title=" legitimisation"> legitimisation</a>, <a href="https://publications.waset.org/abstracts/search?q=presupposition" title=" presupposition"> presupposition</a>, <a href="https://publications.waset.org/abstracts/search?q=political%20discourse" title=" political discourse"> political discourse</a> </p> <a href="https://publications.waset.org/abstracts/85958/presuppositions-and-implicatures-in-four-selected-speeches-of-osama-bin-ladens-legitimisation-of-jihad" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85958.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">239</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">91</span> A Review of the Major Factors of Cost Overrun in Construction Projects</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Abdelgadir">Hassan Abdelgadir</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cost overruns have harmed the economies and reputations of several construction companies around the world. Many project management systems have been developed to keep track of a project's budget. However, due to several cost overrun difficulties in the construction industry, cost management is still deemed inadequate. As a result, the goal of this term paper is to identify and group prospective construction project cost overrun reasons based on their origin groups.Basically, all potential cost overrun elements were rigorously checked through 1iterature analysis before being divided into seven (7) groups of originating components, including project, contract, client, contractor, consultant, labor, and external. Each potential factor was completely defined with examples. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=construction%20projects" title="construction projects">construction projects</a>, <a href="https://publications.waset.org/abstracts/search?q=cost%20overruns" title=" cost overruns"> cost overruns</a>, <a href="https://publications.waset.org/abstracts/search?q=construction%20company" title=" construction company"> construction company</a>, <a href="https://publications.waset.org/abstracts/search?q=factors%20effect%20costoverruns" title=" factors effect costoverruns"> factors effect costoverruns</a> </p> <a href="https://publications.waset.org/abstracts/173461/a-review-of-the-major-factors-of-cost-overrun-in-construction-projects" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173461.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">75</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">90</span> Sudanese Dietitian’s Role in the Provision of Parenteral Nutrition: The Past, Present, and Future</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reem%20Osama%20Yousif%20Ali">Reem Osama Yousif Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20Yousif%20Ali%20Al%20Gibali"> Osama Yousif Ali Al Gibali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Balanced nutrition is undeniably essential for maintaining health, body functions, and integrity of cell metabolism; however, some sick patients cannot tolerate oral or enteral feeding to meet their nutritional needs, so partial or total parenteral nutrition (PN) may be the most suitable alternative route in such situations. Dietitians are fundamental personnel among the medical team to ensure the proper provision of PN service, which was introduced in Sudan in the 1980s. Objective: The study aimed to recognize the dietitians' awareness of parenteral nutrition and their role in providing this service in Sudan – Khartoum State. Methodology: Formulated questionnaire forms composed of twelve questions were distributed to the dietitians working in four tertiary level hospitals. Results: The majority (75%) of the responded dietitians had reasonable knowledge about the importance of PN, its advantages, and its indications. Sixty percent of them were mindful of the PN side effects. Most of the dietitians were aware of the different assessment measurements and PN calculations and were exposed in their clinical practice to patients who were in need of PN, but only a few of them (about 30%) had the actual chance to participate in the formulation and application of PN therapy. The unavailability of the multidisciplinary team, lack of the required equipment and financial support, and associated complications were basic obstacles to the provision of long-term PN service in Khartoum state hospitals. Conclusion: Although dietitians in Khartoum state hospitals have good information about PN definition, indications, accesses, and assessment measures, they do not have enough knowledge and clinical exposure that make them confident to provide the PN service. Establishing a few models of parenteral nutrition units in tertiary hospitals will be of great help, as well as providing the dietitian's training in the area of parenteral nutrition. Further study can explore more requirements to run this service. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nutrition%20support" title="nutrition support">nutrition support</a>, <a href="https://publications.waset.org/abstracts/search?q=dietitian" title=" dietitian"> dietitian</a>, <a href="https://publications.waset.org/abstracts/search?q=Sudan" title=" Sudan"> Sudan</a>, <a href="https://publications.waset.org/abstracts/search?q=parenteral%20nutrition" title=" parenteral nutrition"> parenteral nutrition</a>, <a href="https://publications.waset.org/abstracts/search?q=nutrition%20support%20team" title=" nutrition support team"> nutrition support team</a> </p> <a href="https://publications.waset.org/abstracts/156729/sudanese-dietitians-role-in-the-provision-of-parenteral-nutrition-the-past-present-and-future" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/156729.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">105</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">89</span> Portrayal of Pak-US Relations in Perspective of Bin Laden Killing by the Leading American and British Newspapers: A Content Analysis of the Guardian, the Telegraph, Washington Post and the New York Times</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Shahzad%20Ali">Shahzad Ali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article expounds the coverage of Pak-US relations in the context of Osama Bin Laden killing in four selected leading newspapers of UK and the US viz The Telegraph, The Guardian, The New York Times and The Washington Post during the specific time period of three months, i.e., April-June, 2011. The study is scrutinized on the basis of Operation Neptune Spear. The research study is theoretically linked with the propaganda model of Herman and Chomsky and the Shoemaker and Reeve‘s theory of content effect, specifically the impact of foreign policy as a driving instrument influencing the nature and treatment of the coverage of Pak-US relations. The relations between Pakistan and USA are of great importance in the context of Bin Laden. The Pak-US relations were less aggravated and hostile in pre OBL period but post OBL period worsened these relations. It is also interesting to mention that the policies of these newspapers were dependent on the foreign policy of their countries. It was explored that the news coverage was found favorable as and when the relations Pakistan and the US or UK were cordial and smooth. And it turned into negative and unfavorable when the relations were in strain and deteriorating and endorsed various studies that the Western mainstream media tried to be more nationalistic in projecting official stance while covering foreign coverage instead of adhering to universal cannon of journalism, i.e., objectivity, fairness, and neutrality, etc. Overall 219 news items of these four selected newspapers regarding Pak-US relations in the context of pre and post OBL’s killing operation were undertaken for analysis. The ratio of negative slants was found higher as compared to the positive and neutral slants. Besides, the ratio of news items with unfavorable frames was found higher in post OBL operation in comparison of pre-era of the coverage related to Pak-US relations in the leading British and American newspapers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Bin%20Laden" title="Osama Bin Laden">Osama Bin Laden</a>, <a href="https://publications.waset.org/abstracts/search?q=Pakistan" title=" Pakistan"> Pakistan</a>, <a href="https://publications.waset.org/abstracts/search?q=USA" title=" USA"> USA</a>, <a href="https://publications.waset.org/abstracts/search?q=UK" title=" UK"> UK</a>, <a href="https://publications.waset.org/abstracts/search?q=relations" title=" relations"> relations</a>, <a href="https://publications.waset.org/abstracts/search?q=Guardian" title=" Guardian"> Guardian</a>, <a href="https://publications.waset.org/abstracts/search?q=Washington%20Post" title=" Washington Post"> Washington Post</a>, <a href="https://publications.waset.org/abstracts/search?q=Telegraph" title=" Telegraph"> Telegraph</a>, <a href="https://publications.waset.org/abstracts/search?q=New%20York%20Times" title=" New York Times"> New York Times</a>, <a href="https://publications.waset.org/abstracts/search?q=Operation%20Neptune%20Spear" title=" Operation Neptune Spear"> Operation Neptune Spear</a> </p> <a href="https://publications.waset.org/abstracts/104962/portrayal-of-pak-us-relations-in-perspective-of-bin-laden-killing-by-the-leading-american-and-british-newspapers-a-content-analysis-of-the-guardian-the-telegraph-washington-post-and-the-new-york-times" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104962.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">171</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">88</span> Human Rights Violations and the Inability of International Law to Solve Them</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amin%20Osama%20Amin%20Mohamed%20Elbaramawy">Amin Osama Amin Mohamed Elbaramawy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the last period of time, about ten years ago, wars caused violations of human rights in many places, and despite international condemnations, they did not stop, and the truth is that international law was unable to stop them. The global wars and conflicts that the world has been witnessing for more than ten years have caused the displacement of millions of people in all parts of the earth, causing a violation of the human rights of those people. Despite international condemnations of these conflicts, these conflicts have not stopped and have not been resolved until now. Therefore, I call for international law and international courts to be more effective and not just in words, taking into account the speed in this due to the increase in those wars and conflicts every day and new violations every day. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=war" title="war">war</a>, <a href="https://publications.waset.org/abstracts/search?q=freedom" title=" freedom"> freedom</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20rights" title=" human rights"> human rights</a>, <a href="https://publications.waset.org/abstracts/search?q=international%20law" title=" international law"> international law</a> </p> <a href="https://publications.waset.org/abstracts/162028/human-rights-violations-and-the-inability-of-international-law-to-solve-them" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/162028.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">95</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">87</span> Studies of Carbohydrate, Antioxidant, Nutrient and Genomic DNA Characterization of Fresh Olive Treated with Alkaline and Acidic Solvent: An Innovation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20B.%20M.%20S.%20Hossain">A. B. M. S. Hossain</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Abdelgadir"> A. Abdelgadir</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Ibrahim"> N. A. Ibrahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fresh ripen olive cannot be consumed immediately after harvest due to the excessive bitterness having polyphenol as antioxidant. Industrial processing needs to be edible the fruit. The laboratory processing technique has been used to make it edible by using acid (vinegar, 5% acetic acid) and alkaline solvent (NaOH). Based on the treatment and consequence, innovative data have been found in this regard. The experiment was conducted to investigate biochemical content, nutritional and DNA characterization of olive fruit treated with alkaline (Sodium chloride anhydrous) and acidic solvent (5% acetic acid, vinegar). The treatments were used as control (no water), water control, 10% sodium chloride anhydrous (NaOH), vinegar (5% acetic acid), vinegar + NaOH and vinegar + NaOH + hot water treatment. Our results showed that inverted sugar and glucose content were higher in the vinegar and NaOH treated olive than in other treatments. Fructose content was the highest in vinegar + NaOH treated fruit. Nutrient contents NO3 K, Ca and Na were found higher in the treated fruit than the control fruit. Moreover, maximum K content was observed in the case of all treatments compared to the other nutrient content. The highest acidic (lower pH) condition (sour) was found in treated fruit. DNA yield was found higher in water control than acid and alkaline treated olives. DNA band was wider in the olive treated water control compared to the NaOH, vinegar, vinegar + NaOH and vinegar + NaOH + Hot water treatment. Finally, results suggest that vinegar + NaOH treated olive fruit was the best for fresh olive homemade processing after harvesting for edible purpose. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=olive" title="olive">olive</a>, <a href="https://publications.waset.org/abstracts/search?q=vinegar" title=" vinegar"> vinegar</a>, <a href="https://publications.waset.org/abstracts/search?q=sugars" title=" sugars"> sugars</a>, <a href="https://publications.waset.org/abstracts/search?q=DNA%20band" title=" DNA band"> DNA band</a>, <a href="https://publications.waset.org/abstracts/search?q=bioprocess%20biotechnology" title=" bioprocess biotechnology"> bioprocess biotechnology</a> </p> <a href="https://publications.waset.org/abstracts/70745/studies-of-carbohydrate-antioxidant-nutrient-and-genomic-dna-characterization-of-fresh-olive-treated-with-alkaline-and-acidic-solvent-an-innovation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70745.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">185</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">86</span> Sensitivity Assessment of Spectral Salinity Indices over Desert Sabkha of Western UAE</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Rubab%20Ammad">Rubab Ammad</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelgadir%20Abuelgasim"> Abdelgadir Abuelgasim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> UAE typically lies in one of the aridest regions of the world and is thus home to geologic features common to such climatic conditions including vast open deserts, sand dunes, saline soils, inland Sabkha and coastal Sabkha. Sabkha are characteristic salt flats formed in arid environment due to deposition and precipitation of salt and silt over sand surface because of low laying water table and rates of evaporation exceeding rates of precipitation. The study area, which comprises of western UAE, is heavily concentrated with inland Sabkha. Remote sensing is conventionally used to study the soil salinity of agriculturally degraded lands but not so broadly for Sabkha. The focus of this study was to identify these highly saline Sabkha areas on remotely sensed data, using salinity indices. The existing salinity indices in the literature have been designed for agricultural soils and they have not frequently used the spectral response of short-wave infra-red (SWIR1 and SWIR2) parts of electromagnetic spectrum. Using Landsat 8 OLI data and field ground truthing, this study formulated indices utilizing NIR-SWIR parts of spectrum and compared the results with existing salinity indices. Most indices depict reasonably good relationship between salinity and spectral index up until a certain value of salinity after which the reflectance reaches a saturation point. This saturation point varies with index. However, the study findings suggest a role of incorporating near infra-red and short-wave infra-red in salinity index with a potential of showing a positive relationship between salinity and reflectance up to a higher salinity value, compared to rest. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sabkha" title="Sabkha">Sabkha</a>, <a href="https://publications.waset.org/abstracts/search?q=salinity%20index" title=" salinity index"> salinity index</a>, <a href="https://publications.waset.org/abstracts/search?q=saline%20soils" title=" saline soils"> saline soils</a>, <a href="https://publications.waset.org/abstracts/search?q=Landsat%208" title=" Landsat 8"> Landsat 8</a>, <a href="https://publications.waset.org/abstracts/search?q=SWIR1" title=" SWIR1"> SWIR1</a>, <a href="https://publications.waset.org/abstracts/search?q=SWIR2" title=" SWIR2"> SWIR2</a>, <a href="https://publications.waset.org/abstracts/search?q=UAE%20desert" title=" UAE desert"> UAE desert</a> </p> <a href="https://publications.waset.org/abstracts/77468/sensitivity-assessment-of-spectral-salinity-indices-over-desert-sabkha-of-western-uae" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77468.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">214</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">85</span> Protective Effects of Ethanolic Purslane Extracts on Doxorubicin-Induced Hepatotoxicity in Albino Rats</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20M.%20Ahmed">Osama M. Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Walaa%20G.%20Hozayen"> Walaa G. Hozayen</a>, <a href="https://publications.waset.org/abstracts/search?q=Haidy%20Tamer%20Abo%20Sree"> Haidy Tamer Abo Sree</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effect of doxorubicin (4 mg/kg b.w.week) without or with oral administration of ethanolic purslane (Portulaca oleracea) shoot (leaves and stems) extract (50 mg/kg b.w.day) or ethanolic purslane seeds extract (50 mg/kg b.w.day) co-treatments for 6 weeks was evaluated in adult male rats. There was an increase in serum levels of ALT, AST, ALP, GGT and total bilirubin. In addition, hepatic glutathine, glutathione transferase, peroxidase, SOD, CAT activities were decreased while lipid peroxidation in the liver was increased. Co-administration of ethanolic purslane and seed extracts successfully improved the adverse changes in the liver functions with an increase in antioxidants activities and reduction of lipid peroxidation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antioxidants" title="antioxidants">antioxidants</a>, <a href="https://publications.waset.org/abstracts/search?q=doxorubicin" title=" doxorubicin"> doxorubicin</a>, <a href="https://publications.waset.org/abstracts/search?q=hepatotoxicity" title=" hepatotoxicity"> hepatotoxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=purslane" title=" purslane"> purslane</a> </p> <a href="https://publications.waset.org/abstracts/30941/protective-effects-of-ethanolic-purslane-extracts-on-doxorubicin-induced-hepatotoxicity-in-albino-rats" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30941.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">418</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">84</span> Effects of Asphalt Modification with Nanomaterials on Fresh and Stored Bitumen</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20W.%20Oda">Ahmed W. Oda</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20El-Desouky"> Ahmed El-Desouky</a>, <a href="https://publications.waset.org/abstracts/search?q=Hassan%20Mahdy"> Hassan Mahdy</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20M.%20Moussa"> Osama M. Moussa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nanomaterials have many applications in the field of asphalt paving. Two locally produced nanomaterials were used in the asphalt binder modification. The nanomaterials used are Nanosilica (NS), and Nanoclay (NC). The virgin asphalt binder was characterized by the conventional tests. The bitumen was modified by 3%, 5% and 7% of NS and NC. The penetration index(PI), and the retaining penetration (RP) was calculated based on the results of the penetration and the softening point tests. The results show that the RP becomes 95.35% at 5%NS modified bitumen and reaches 97.56% when bitumen is modified with 3% NC. The results show significant improvement in the bitumen stiffness when modified by the two types of nanomaterials, either fresh or aged (stored). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bitumen" title="bitumen">bitumen</a>, <a href="https://publications.waset.org/abstracts/search?q=modified%20bitumen" title=" modified bitumen"> modified bitumen</a>, <a href="https://publications.waset.org/abstracts/search?q=aged" title=" aged"> aged</a>, <a href="https://publications.waset.org/abstracts/search?q=stored" title="stored">stored</a>, <a href="https://publications.waset.org/abstracts/search?q=nanomaterials" title=" nanomaterials"> nanomaterials</a> </p> <a href="https://publications.waset.org/abstracts/146856/effects-of-asphalt-modification-with-nanomaterials-on-fresh-and-stored-bitumen" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146856.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">193</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">83</span> Non-Destructive Visual-Statistical Approach to Detect Leaks in Water Mains</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alaa%20Al%20Hawari">Alaa Al Hawari</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Khader"> Mohammad Khader</a>, <a href="https://publications.waset.org/abstracts/search?q=Tarek%20Zayed"> Tarek Zayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20Moselhi"> Osama Moselhi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, an effective non-destructive, non-invasive approach for leak detection was proposed. The process relies on analyzing thermal images collected by an IR viewer device that captures thermo-grams. In this study a statistical analysis of the collected thermal images of the ground surface along the expected leak location followed by a visual inspection of the thermo-grams was performed in order to locate the leak. In order to verify the applicability of the proposed approach the predicted leak location from the developed approach was compared with the real leak location. The results showed that the expected leak location was successfully identified with an accuracy of more than 95%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=thermography" title="thermography">thermography</a>, <a href="https://publications.waset.org/abstracts/search?q=leakage" title=" leakage"> leakage</a>, <a href="https://publications.waset.org/abstracts/search?q=water%20pipelines" title=" water pipelines"> water pipelines</a>, <a href="https://publications.waset.org/abstracts/search?q=thermograms" title=" thermograms"> thermograms</a> </p> <a href="https://publications.waset.org/abstracts/26442/non-destructive-visual-statistical-approach-to-detect-leaks-in-water-mains" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26442.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">82</span> Bi-Lateral Comparison between NIS-Egypt and NMISA-South Africa for the Calibration of an Optical Time Domain Reflectometer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Terra">Osama Terra</a>, <a href="https://publications.waset.org/abstracts/search?q=Mariesa%20Nel"> Mariesa Nel</a>, <a href="https://publications.waset.org/abstracts/search?q=Hatem%20Hussein"> Hatem Hussein</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Calibration of Optical Time Domain Reflectometer (OTDR) has a crucial role for the accurate determination of fault locations and the accurate calculation of loss budget of long-haul optical fibre links during installation and repair. A comparison has been made between the Egyptian National Institute for Standards (NIS-Egypt) and the National Metrology institute of South Africa (NMISA-South Africa) for the calibration of an OTDR. The distance and the attenuation scales of a transfer OTDR have been calibrated by both institutes using their standards according to the standard IEC 61746-1 (2009). The results of this comparison have been compiled in this report. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=OTDR%20calibration" title="OTDR calibration">OTDR calibration</a>, <a href="https://publications.waset.org/abstracts/search?q=recirculating%20loop" title=" recirculating loop"> recirculating loop</a>, <a href="https://publications.waset.org/abstracts/search?q=concatenated%20method" title=" concatenated method"> concatenated method</a>, <a href="https://publications.waset.org/abstracts/search?q=standard%20fiber" title=" standard fiber"> standard fiber</a> </p> <a href="https://publications.waset.org/abstracts/56991/bi-lateral-comparison-between-nis-egypt-and-nmisa-south-africa-for-the-calibration-of-an-optical-time-domain-reflectometer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56991.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">448</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">81</span> Finite Element and Experimental Investigation of Ductile Crack Growth of Surface Cracks</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20A.%20Terfas">Osama A. Terfas</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelhakim%20A.%20Hameda"> Abdelhakim A. Hameda</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdusalam%20A.%20Alktiwi"> Abdusalam A. Alktiwi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An investigation on ductile crack growth of shallow semi-elliptical surface cracks with a/w=0.2, a/c=0.33 under bending was carried out, where a is the crack depth, w is the plate thickness and c is the crack length at surface. Finite element analysis and experiments were modelling and the crack growth model were verified with experimental data. The results showed that the initial crack shape was no longer maintained as the crack developed under ductile tearing. The maximum growth at the deepest point at early stages was stopped when the crack depth reached half thickness and growth occurred beneath surface. Excellent agreement in the crack shape patterns was observed between the experiments and the crack growth model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=crack%20growth" title="crack growth">crack growth</a>, <a href="https://publications.waset.org/abstracts/search?q=ductile%20tearing" title=" ductile tearing"> ductile tearing</a>, <a href="https://publications.waset.org/abstracts/search?q=mean%20stress" title=" mean stress"> mean stress</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20cracks" title=" surface cracks "> surface cracks </a> </p> <a href="https://publications.waset.org/abstracts/19645/finite-element-and-experimental-investigation-of-ductile-crack-growth-of-surface-cracks" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19645.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">488</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">80</span> Bi-Lateral Comparison between NIS-Egypt and NMISA-South Africa for the Calibration of an Optical Spectrum Analyzer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Terra">Osama Terra</a>, <a href="https://publications.waset.org/abstracts/search?q=Hatem%20Hussein"> Hatem Hussein</a>, <a href="https://publications.waset.org/abstracts/search?q=Adriaan%20Van%20Brakel"> Adriaan Van Brakel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dense wavelength division multiplexing (DWDM) technology requires tight specification and therefore measurement of wavelength accuracy and stability of the telecommunication lasers. Thus, calibration of the used Optical Spectrum Analyzers (OSAs) that are used to measure wavelength is of a great importance. Proficiency testing must be performed on such measuring activity to insure the accuracy of the measurement results. In this paper, a new comparison scheme is introduced to test the performance of such calibrations. This comparison scheme is implemented between NIS-Egypt and NMISA-South Africa for the calibration of the wavelength scale of an OSA. Both institutes employ reference gas cell to calibrate OSA according to the standard IEC/ BS EN 62129 (2006). The result of this comparison is compiled in this paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=OSA%20calibration" title="OSA calibration">OSA calibration</a>, <a href="https://publications.waset.org/abstracts/search?q=HCN%20gas%20cell" title=" HCN gas cell"> HCN gas cell</a>, <a href="https://publications.waset.org/abstracts/search?q=DWDM%20technology" title=" DWDM technology"> DWDM technology</a>, <a href="https://publications.waset.org/abstracts/search?q=wavelength%20measurement" title=" wavelength measurement"> wavelength measurement</a> </p> <a href="https://publications.waset.org/abstracts/77979/bi-lateral-comparison-between-nis-egypt-and-nmisa-south-africa-for-the-calibration-of-an-optical-spectrum-analyzer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/77979.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">79</span> Experimental and Numerical Investigation of Flow Control Using a Novel Active Slat </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Basman%20Elhadidi">Basman Elhadidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Islam%20Elqatary"> Islam Elqatary</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20Saaid"> Osama Saaid</a>, <a href="https://publications.waset.org/abstracts/search?q=Hesham%20Othman"> Hesham Othman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An active slat is developed to increase the lift and delay the separation for a DU96-W180 airfoil. The active slat is a fixed slat that can be closed, fully opened or intermittently opened by a rotating vane depending on the need. Experimental results show that the active slat has reduced the mean pressure and increased the mean velocity on the suction side of the airfoil for all positive angles of attack, indicating an increase of lift. The experimental data and numerical simulations also show that the direction of actuator vane rotation can influence the mixing of the flow streams on the suction side and hence influence the aerodynamic performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=active%20slat" title="active slat">active slat</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20control" title=" flow control"> flow control</a>, <a href="https://publications.waset.org/abstracts/search?q=experimental%20investigation" title="experimental investigation">experimental investigation</a>, <a href="https://publications.waset.org/abstracts/search?q=aerodynamic%20performance" title=" aerodynamic performance"> aerodynamic performance</a> </p> <a href="https://publications.waset.org/abstracts/13733/experimental-and-numerical-investigation-of-flow-control-using-a-novel-active-slat" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13733.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">78</span> Geochemistry of Silt Size Fraction of the Beach Sands Along the Coast Between Al Kuwifia and Tolmeita, NE Libya</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Basem%20A.%20El%20Werfallia">Basem A. El Werfallia</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20R.%20Shaltamiab"> Osama R. Shaltamiab</a>, <a href="https://publications.waset.org/abstracts/search?q=Ragab%20M.%20Al%20Alwanyc"> Ragab M. Al Alwanyc</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work aims to characterize the geochemistry of the beach sands along the Mediterranean Coast from Al Kuwifia to Tolmeita, NE Libya. The major oxides CaO and MgO are the main constituents of the carbonate minerals; calcite and aragonite. SiO2 is mainly in the form of quartz. Sometimes a high quotient of SiO2 together with the oxides; Al2O3, K2O and partly of Na2O, TiO2 and Fe2O3 are essentially allocated within the structure of the feldspars. Part of Na2O and the content of Cl belong mainly to halite. Part of Fe2O3 and TiO2 may be accommodated as iron oxyhydroxides. Part of CaO and the content of SO3 are allotted within the gypsum structure. Ba, Sr, Th, U and REE are basicallycontrolled by the carbonate fraction, while Cu, Zn, V and Cr are strongly correlated with Al2O3. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=geochemistry" title="geochemistry">geochemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=major%20oxides" title=" major oxides"> major oxides</a>, <a href="https://publications.waset.org/abstracts/search?q=Al%20Kuwifia" title=" Al Kuwifia"> Al Kuwifia</a>, <a href="https://publications.waset.org/abstracts/search?q=Tolmeita" title=" Tolmeita"> Tolmeita</a> </p> <a href="https://publications.waset.org/abstracts/176776/geochemistry-of-silt-size-fraction-of-the-beach-sands-along-the-coast-between-al-kuwifia-and-tolmeita-ne-libya" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176776.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">94</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">77</span> Geochemistry of Silt Size Fraction of the Beach Sands Along the Coast Between Al Kuwifia and Tolmeita, NE Libya</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Basem%20A.%20El%20Werfalli">Basem A. El Werfalli</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20R.%20Shaltamiab"> Osama R. Shaltamiab</a>, <a href="https://publications.waset.org/abstracts/search?q=Ragab%20M.%20Al%20Alwany"> Ragab M. Al Alwany</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work aims to characterize the geochemistry of the beach sands along the Mediterranean Coast from Al Kuwifia to Tolmeita, NE Libya. The major oxides CaO and MgO are the main constituents of the carbonate minerals; calcite and aragonite. SiO₂ is mainly in the form of quartz. Sometimes a high quotient of SiO₂ together with the oxides; Al₂O₃, K₂O and partly of Na₂O, TiO₂ and Fe₂O₃ are essentially allocated within the structure of the feldspars. Part of Na₂O and the content of Cl belong mainly to halite. Part of Fe₂O₃ and TiO₂ may be accommodated as iron oxyhydroxides. Part of CaO and the content of SO₃ are allotted within the gypsum structure. Ba, Sr, Th, U and REE are basically controlled by the carbonate fraction, while Cu, Zn, V and Cr are strongly correlated with Al₂O₃. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=geochemistry" title="geochemistry">geochemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=major%20oxides" title=" major oxides"> major oxides</a>, <a href="https://publications.waset.org/abstracts/search?q=Al%20Kuwifia" title=" Al Kuwifia"> Al Kuwifia</a>, <a href="https://publications.waset.org/abstracts/search?q=Tolmeita" title=" Tolmeita"> Tolmeita</a> </p> <a href="https://publications.waset.org/abstracts/146565/geochemistry-of-silt-size-fraction-of-the-beach-sands-along-the-coast-between-al-kuwifia-and-tolmeita-ne-libya" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146565.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">138</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">76</span> Experimental and Numerical Investigation of Flow Control Using a Novel Active Slat</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Basman%20Elhadidi">Basman Elhadidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Islam%20Elqatary"> Islam Elqatary</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20Mohamady"> Osama Mohamady</a>, <a href="https://publications.waset.org/abstracts/search?q=Hesham%20Othman"> Hesham Othman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An active slat is developed to increase the lift and delay the separation for a DU96-W180 airfoil. The active slat is a fixed slat that can be closed, fully opened or intermittently opened by a rotating vane depending on the need. Experimental results show that the active slat has reduced the mean pressure and increased the mean velocity on the suction side of the airfoil for all positive angles of attack, indicating an increase of lift. The experimental data and numerical simulations also show that the direction of actuator vane rotation can influence the mixing of the flow streams on the suction side and hence influence the aerodynamic performance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=active%20slat" title="active slat">active slat</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20control" title=" flow control"> flow control</a>, <a href="https://publications.waset.org/abstracts/search?q=DU96-W180%20airfoil" title=" DU96-W180 airfoil"> DU96-W180 airfoil</a>, <a href="https://publications.waset.org/abstracts/search?q=flow%20streams" title=" flow streams"> flow streams</a> </p> <a href="https://publications.waset.org/abstracts/20582/experimental-and-numerical-investigation-of-flow-control-using-a-novel-active-slat" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20582.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">378</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">75</span> The Best Methods of Motivating and Encouraging the Students to Study: A Case Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20I.%20Syam">Mahmoud I. Syam</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20K.%20El-Hafy"> Osama K. El-Hafy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With lack of student motivation, there will be a little or no real learning in the class and this directly effects student achievement and test scores. Some students are naturally motivated to learn, but many students are not motivated, they do care little about learning and need their instructors to motivate them. Thus, motivating students is part of the instructor’s job. It’s a tough task to motivate students and make them have more attention and enthusiasm. As a part of this research, a questionnaire has been distributed among a sample of 155 students out of 1502 students from Foundation Program at Qatar University. The questionnaire helped us to determine some methods to motivate the students and encourage them to study such as variety of teaching activities, encouraging students to participate during the lectures, creating intense competition between the students, using instructional technology, not using grades as a threat and respecting the students and treating them in a good manner. Accordingly, some hypotheses are tested and some recommendations are presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=learning" title="learning">learning</a>, <a href="https://publications.waset.org/abstracts/search?q=motivating" title=" motivating"> motivating</a>, <a href="https://publications.waset.org/abstracts/search?q=student" title=" student"> student</a>, <a href="https://publications.waset.org/abstracts/search?q=teacher" title=" teacher"> teacher</a>, <a href="https://publications.waset.org/abstracts/search?q=testing%20hypotheses" title=" testing hypotheses"> testing hypotheses</a> </p> <a href="https://publications.waset.org/abstracts/28690/the-best-methods-of-motivating-and-encouraging-the-students-to-study-a-case-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28690.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">473</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">74</span> Rule Insertion Technique for Dynamic Cell Structure Neural Network </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Elsarrar">Osama Elsarrar</a>, <a href="https://publications.waset.org/abstracts/search?q=Marjorie%20Darrah"> Marjorie Darrah</a>, <a href="https://publications.waset.org/abstracts/search?q=Richard%20Devin"> Richard Devin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper discusses the idea of capturing an expert’s knowledge in the form of human understandable rules and then inserting these rules into a dynamic cell structure (DCS) neural network. The DCS is a form of self-organizing map that can be used for many purposes, including classification and prediction. This particular neural network is considered to be a topology preserving network that starts with no pre-structure, but assumes a structure once trained. The DCS has been used in mission and safety-critical applications, including adaptive flight control and health-monitoring in aerial vehicles. The approach is to insert expert knowledge into the DCS before training. Rules are translated into a pre-structure and then training data are presented. This idea has been demonstrated using the well-known Iris data set and it has been shown that inserting the pre-structure results in better accuracy with the same training. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=neural%20network" title="neural network">neural network</a>, <a href="https://publications.waset.org/abstracts/search?q=self-organizing%20map" title=" self-organizing map"> self-organizing map</a>, <a href="https://publications.waset.org/abstracts/search?q=rule%20extraction" title=" rule extraction"> rule extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=rule%20insertion" title=" rule insertion"> rule insertion</a> </p> <a href="https://publications.waset.org/abstracts/116302/rule-insertion-technique-for-dynamic-cell-structure-neural-network" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/116302.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">73</span> Isolation and Molecular Identification of Two Fungal Strains Capable of Degrading hydrocarbon Contaminants on Saudi Arabian Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amr%20A.%20EL%20Hanafy">Amr A. EL Hanafy</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasir%20Anwar"> Yasir Anwar</a>, <a href="https://publications.waset.org/abstracts/search?q=Saleh%20A.%20Mohamed"> Saleh A. Mohamed</a>, <a href="https://publications.waset.org/abstracts/search?q=Saleh%20Mohamed%20Saleh%20Al-Garni"> Saleh Mohamed Saleh Al-Garni</a>, <a href="https://publications.waset.org/abstracts/search?q=Jamal%20S.%20M.%20Sabir"> Jamal S. M. Sabir </a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20A.%20H.%20Abu%20Zinadah"> Osama A. H. Abu Zinadah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Morsi%20Ahmed"> Mohamed Morsi Ahmed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the vicinity of the red sea about 15 fungi species were isolated from oil contaminated sites. On the basis of aptitude to degrade the crude oil and DCPIP assay, two fungal isolates were selected amongst 15 oil degrading strains. Analysis of ITS-1, ITS-2 and amplicon pyrosequencing studies of fungal diversity revealed that these strains belong to Penicillium and Aspergillus species. Two strains that proved to be the most efficient in degrading crude oil was Aspergillus niger (54 %) and Penicillium commune (48 %) Subsequent to two weeks of cultivation in BHS medium the degradation rate were recorded by using spectrophotometer and GC-MS. Hence, it is cleared that these fungal strains has the capability of degradation and can be utilized for cleaning the Saudi Arabian environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fungal%20%20strains" title="fungal strains">fungal strains</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrocarbon%20contaminants" title=" hydrocarbon contaminants"> hydrocarbon contaminants</a>, <a href="https://publications.waset.org/abstracts/search?q=molecular%20identification" title=" molecular identification"> molecular identification</a>, <a href="https://publications.waset.org/abstracts/search?q=biodegradation" title=" biodegradation"> biodegradation</a>, <a href="https://publications.waset.org/abstracts/search?q=GC-MS" title=" GC-MS"> GC-MS</a> </p> <a href="https://publications.waset.org/abstracts/36036/isolation-and-molecular-identification-of-two-fungal-strains-capable-of-degrading-hydrocarbon-contaminants-on-saudi-arabian-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/36036.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">522</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">72</span> Attenuation Scale Calibration of an Optical Time Domain Reflectometer</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Terra">Osama Terra</a>, <a href="https://publications.waset.org/abstracts/search?q=Hatem%20Hussein"> Hatem Hussein</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Calibration of Optical Time Domain Reflectometer (OTDR) is crucial for the accurate determination of loss budget for long optical fiber links. In this paper, the calibration of the attenuation scale of an OTDR using two different techniques is discussed and implemented. The first technique is the external modulation method (EM). A setup is proposed to calibrate an OTDR over a dynamic range of around 15 dB based on the EM method. Afterwards, the OTDR is calibrated using two standard reference fibers (SRF). Both SRF are calibrated using cut-back technique; one of them is calibrated at our home institute (the National Institute of Standards – NIS) while the other at the National Physical Laboratory (NPL) of the United Kingdom to confirm our results. In addition, the parameters contributing the calibration uncertainty are thoroughly investigated. Although the EM method has several advantages over the SRF method, the uncertainties in the SRF method is found to surpass that of the EM method. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=optical%20time%20domain%20reflectometer" title="optical time domain reflectometer">optical time domain reflectometer</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20attenuation%20measurement" title=" fiber attenuation measurement"> fiber attenuation measurement</a>, <a href="https://publications.waset.org/abstracts/search?q=OTDR%20calibration" title=" OTDR calibration"> OTDR calibration</a>, <a href="https://publications.waset.org/abstracts/search?q=external%20source%20method" title=" external source method"> external source method</a> </p> <a href="https://publications.waset.org/abstracts/56989/attenuation-scale-calibration-of-an-optical-time-domain-reflectometer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56989.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">465</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> Hit-Or-Miss Transform as a Tool for Similar Shape Detection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Mohamed%20Elrajubi">Osama Mohamed Elrajubi</a>, <a href="https://publications.waset.org/abstracts/search?q=Idris%20El-Feghi"> Idris El-Feghi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Abu%20Baker%20Saghayer"> Mohamed Abu Baker Saghayer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper describes an identification of specific shapes within binary images using the morphological Hit-or-Miss Transform (HMT). Hit-or-Miss transform is a general binary morphological operation that can be used in searching of particular patterns of foreground and background pixels in an image. It is actually a basic operation of binary morphology since almost all other binary morphological operators are derived from it. The input of this method is a binary image and a structuring element (a template which will be searched in a binary image) while the output is another binary image. In this paper a modification of Hit-or-Miss transform has been proposed. The accuracy of algorithm is adjusted according to the similarity of the template and the sought template. The implementation of this method has been done by C language. The algorithm has been tested on several images and the results have shown that this new method can be used for similar shape detection. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hit-or-miss%20operator%20transform" title="hit-or-miss operator transform">hit-or-miss operator transform</a>, <a href="https://publications.waset.org/abstracts/search?q=HMT" title=" HMT"> HMT</a>, <a href="https://publications.waset.org/abstracts/search?q=binary%20morphological%20operation" title=" binary morphological operation"> binary morphological operation</a>, <a href="https://publications.waset.org/abstracts/search?q=shape%20detection" title=" shape detection"> shape detection</a>, <a href="https://publications.waset.org/abstracts/search?q=binary%20images%20processing" title=" binary images processing"> binary images processing</a> </p> <a href="https://publications.waset.org/abstracts/11881/hit-or-miss-transform-as-a-tool-for-similar-shape-detection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11881.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">70</span> Dy³+/Eu³+ Co-Activated Gadolinium Aluminate Borate Phosphor: Enhanced Luminescence and Color Output Tuning</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Madkhali">Osama Madkhali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> GdAl₃(BO₃)₄ phosphors, incorporating Dy³+ and Dy³+/Eu³+ activators, were successfully synthesized via the gel combustion method. Powder X-ray diffraction (XRD) was utilized to ascertain phase purity and assess the impact of dopant concentration on the crystallographic structure. Photoluminescence (PL) measurements revealed that luminescence properties' intensity and lifetime varied with Dy³+ and Eu³+ ion concentrations. The relationship between luminescence intensity and doping concentration was explored in the context of the energy transfer process between Eu³+ and Dy³+ ions. An increase in Eu³+ co-doping concentrations resulted in a decrease in luminescence lifetime. Energy transfer efficiency was significantly enhanced from 26% to 84% with Eu³+ co-doping, as evidenced by decay curve analysis. These findings position GdAl₃(BO₃)4: Dy³+, Eu³+ phosphors as promising candidates for LED applications in solid-state lighting and displays. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=GdAl%E2%82%83%28BO%E2%82%83%29%E2%82%84%20phosphors" title="GdAl₃(BO₃)₄ phosphors">GdAl₃(BO₃)₄ phosphors</a>, <a href="https://publications.waset.org/abstracts/search?q=Dy%C2%B3%2B%2FEu%C2%B3%2B%20co-doping" title=" Dy³+/Eu³+ co-doping"> Dy³+/Eu³+ co-doping</a>, <a href="https://publications.waset.org/abstracts/search?q=photoluminescence%20%28PL%29%20measurements" title=" photoluminescence (PL) measurements"> photoluminescence (PL) measurements</a>, <a href="https://publications.waset.org/abstracts/search?q=luminescence%20properties" title=" luminescence properties"> luminescence properties</a>, <a href="https://publications.waset.org/abstracts/search?q=LED%20applications" title=" LED applications"> LED applications</a>, <a href="https://publications.waset.org/abstracts/search?q=solid-state%20lighting" title=" solid-state lighting"> solid-state lighting</a> </p> <a href="https://publications.waset.org/abstracts/181481/dy3eu3-co-activated-gadolinium-aluminate-borate-phosphor-enhanced-luminescence-and-color-output-tuning" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/181481.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">56</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> Investigation of the Effect of Grid Size on External Store Separation Trajectory Using CFD</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alaa%20A.%20Osman">Alaa A. Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=Amgad%20M.%20Bayoumy%20Aly"> Amgad M. Bayoumy Aly</a>, <a href="https://publications.waset.org/abstracts/search?q=Ismail%20El%20baialy"> Ismail El baialy</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20E.%20Abdellatif"> Osama E. Abdellatif</a>, <a href="https://publications.waset.org/abstracts/search?q=Essam%20E.%20Khallil"> Essam E. Khallil</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a numerical simulation of a finned store separating from a wing-pylon configuration has been studied and validated. A dynamic unstructured tetrahedral mesh approach is accomplished by using three grid sizes to numerically solving the discretized three dimensional, inviscid and compressible Navier-stokes equations. The method used for computations of separation of an external store assuming quasi-steady flow condition. Computations of quasi-steady flow have been directly coupled to a six degree-of-freedom (6DOF) rigid-body motion code to generate store trajectories. The pressure coefficients at four different angular cuts and time histories of various trajectory parameters during the store separation are compared for every grid size with published experimental data. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFD%20modelling" title="CFD modelling">CFD modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=transonic%20store%20separation" title=" transonic store separation"> transonic store separation</a>, <a href="https://publications.waset.org/abstracts/search?q=quasi-steady%20flow" title=" quasi-steady flow"> quasi-steady flow</a>, <a href="https://publications.waset.org/abstracts/search?q=moving-body%20trajectories" title=" moving-body trajectories"> moving-body trajectories</a> </p> <a href="https://publications.waset.org/abstracts/20045/investigation-of-the-effect-of-grid-size-on-external-store-separation-trajectory-using-cfd" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20045.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">390</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">68</span> MIMO UWB Antenna for Exploring Body Centric Communication</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Aziz">Osama Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Hamza%20Ahmad"> Hamza Ahmad</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhibur%20Rahman"> Muhibur Rahman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The performance of wireless communication systems has been suggested to be improved by UWB MIMO antenna systems. However, creating a successful UWB MIMO antenna is a difficult undertaking that calls for resolving a number of design issues, including radiation efficiency, size, and frequency range. This study's primary objective is to create a novel, highly effective, small-sized, ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna and investigate its potential applications in body-centric communication. Two radiating elements, shared ground plane, circular stubs, and t-shaped isolation elements are used to achieve the MIMO antenna. Outstanding multiplexing efficiency, significant peak gain across the entire UWB frequency spectrum, extremely low mutual coupling (S21=-16 dB), high diversity gain (DG>9), and low envelop correlation are achieved. The proposed antenna will be one of the promising candidates for body centric communication. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=UWB%20communication" title="UWB communication">UWB communication</a>, <a href="https://publications.waset.org/abstracts/search?q=UWB%20MIMO%20antennas" title=" UWB MIMO antennas"> UWB MIMO antennas</a>, <a href="https://publications.waset.org/abstracts/search?q=body-centric%20communication" title=" body-centric communication"> body-centric communication</a>, <a href="https://publications.waset.org/abstracts/search?q=diversity%20gain" title=" diversity gain"> diversity gain</a> </p> <a href="https://publications.waset.org/abstracts/179022/mimo-uwb-antenna-for-exploring-body-centric-communication" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/179022.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">75</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">67</span> Sustainable Land Use Policy and Monitoring Urban Land Expansion in Kabul: A Case Study of Rapid Urbanization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Osama%20Hidayat">Osama Hidayat</a>, <a href="https://publications.waset.org/abstracts/search?q=Yoshitaka%20Kajiat"> Yoshitaka Kajiat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Kabul is a city that is highly representative of Afghanistan’s rapid urbanization process. As the city rapidly expands, there are enormous challenges to the sustainable use of land resources. This paper evaluates land use change and urban spatial expansion, from 1950 to 2016, in Kabul the capital of Afghanistan, using satellite images, field observation, and socio-economic data. The discussion covers the reduction in rural-to-urban land conversion, the delineation of urban growth boundaries, arable land reclamation and the establishment of farmland protection areas, urban upgrading, and the investigation and prosecution of illegal construction. This paper considers the aspects of urbanization and land management systems in Afghanistan. Efficient frames are outlined in Kabul for the following elements: governmental self-restraint and policy modification. The paper concludes that Kabul’s sustainable land use practices can provide a reference for other cities in Afghanistan. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=urban%20land%20expansion" title="urban land expansion">urban land expansion</a>, <a href="https://publications.waset.org/abstracts/search?q=urbanization" title=" urbanization"> urbanization</a>, <a href="https://publications.waset.org/abstracts/search?q=land%20use%20policy" title=" land use policy"> land use policy</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title=" sustainable development"> sustainable development</a> </p> <a href="https://publications.waset.org/abstracts/105777/sustainable-land-use-policy-and-monitoring-urban-land-expansion-in-kabul-a-case-study-of-rapid-urbanization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105777.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">66</span> Alternate Dispute Resolution: Expeditious Justice </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Uzma%20Fakhar">Uzma Fakhar</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20Fakhar"> Osama Fakhar</a>, <a href="https://publications.waset.org/abstracts/search?q=Aamir%20Shafiq%20Ch"> Aamir Shafiq Ch </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Methods of alternate dispute resolution (ADR) like conciliation, arbitration, mediation are the supplement to ensure inexpensive and expeditious justice in a country. Justice delayed has not only created chaos, but an element of rebellious behavior towards judiciary is being floated among people. Complexity of traditional judicial system and its diversity has created an overall coherence. Admittedly, In Pakistan the traditional judicial system has failed to achieve its goals which resulted in the backlog of cases pending in courts, resultantly even the critics of alternate dispute resolution agree to restore the spirit of expeditious justice by reforming the old Panchayat system. The Government is keen to enact certain laws and make amendments to facilitate the resolution of a dispute through a simple and faster ADR framework instead of a lengthy and exhausting complex trial in order to create proliferation and faith in alternate dispute resolution. This research highlights the value of ADR in a country like Pakistan for revival of the confidence of the people upon the judicial process and a useful judicial tool to reduce the pressure on the judiciary. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alternate%20dispute%20resolution" title="alternate dispute resolution">alternate dispute resolution</a>, <a href="https://publications.waset.org/abstracts/search?q=development%20of%20law" title=" development of law"> development of law</a>, <a href="https://publications.waset.org/abstracts/search?q=expeditious%20justice" title=" expeditious justice"> expeditious justice</a>, <a href="https://publications.waset.org/abstracts/search?q=Pakistan" title=" Pakistan"> Pakistan</a> </p> <a href="https://publications.waset.org/abstracts/80534/alternate-dispute-resolution-expeditious-justice" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80534.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">222</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> Improved Small-Signal Characteristics of Infrared 850 nm Top-Emitting Vertical-Cavity Lasers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20Al-Omari">Ahmad Al-Omari</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20Khreis"> Osama Khreis</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmad%20M.%20K.%20Dagamseh"> Ahmad M. K. Dagamseh</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdullah%20Ababneh"> Abdullah Ababneh</a>, <a href="https://publications.waset.org/abstracts/search?q=Kevin%20Lear"> Kevin Lear</a> </p> <p class="card-text"><strong>Abstract:</strong></p> High-speed infrared vertical-cavity surface-emitting laser diodes (VCSELs) with Cu-plated heat sinks were fabricated and tested. VCSELs with 10 mm aperture diameter and 4 mm of electroplated copper demonstrated a -3dB modulation bandwidth (<em>f</em><sub>-3dB</sub>) of 14 GHz and a resonance frequency (<em>f</em><sub>R</sub>) of 9.5 GHz at a bias current density (<em>J<sub>bias</sub></em>) of only 4.3 kA/cm<sup>2</sup>, which corresponds to an improved <em>f</em><sub>-3dB</sub><sup>2</sup>/<em>J<sub>bias</sub></em> ratio of 44 GHz<sup>2</sup>/kA/cm<sup>2</sup>. At higher and lower bias current densities, the <em>f</em><sub>-3dB</sub><sup>2</sup>/<em> J<sub>bias</sub></em> ratio decreased to about 30 GHz<sup>2</sup>/kA/cm<sup>2</sup> and 18 GHz<sup>2</sup>/kA/cm<sup>2</sup>, respectively. Examination of the analogue modulation response demonstrated that the presented VCSELs displayed a steady <em>f</em><sub>-3dB</sub>/<em> f</em><sub>R</sub> ratio of 1.41±10% over the whole range of the bias current (1.3<em>I</em><sub>th</sub> to 6.2<em>I</em><sub>th</sub>). The devices also demonstrated a maximum modulation bandwidth (<em>f</em><sub>-3dB max</sub>) of more than 16 GHz at a bias current less than the industrial bias current standard for reliability by 25%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=current%20density" title="current density">current density</a>, <a href="https://publications.waset.org/abstracts/search?q=high-speed%20VCSELs" title=" high-speed VCSELs"> high-speed VCSELs</a>, <a href="https://publications.waset.org/abstracts/search?q=modulation%20bandwidth" title=" modulation bandwidth"> modulation bandwidth</a>, <a href="https://publications.waset.org/abstracts/search?q=small-signal%20characteristics" title=" small-signal characteristics"> small-signal characteristics</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20impedance" title=" thermal impedance"> thermal impedance</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical-cavity%20surface-emitting%20lasers" title=" vertical-cavity surface-emitting lasers"> vertical-cavity surface-emitting lasers</a> </p> <a href="https://publications.waset.org/abstracts/78212/improved-small-signal-characteristics-of-infrared-850-nm-top-emitting-vertical-cavity-lasers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78212.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">570</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> Air Flow Characteristics and Pressure Distributions for Staggered Wing Shaped Tubes Bundle</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sayed%20A.%20Elsayed">Sayed A. Elsayed</a>, <a href="https://publications.waset.org/abstracts/search?q=Emad%20Z.%20Ibrahim"> Emad Z. Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Osama%20M.%20Mesalhy"> Osama M. Mesalhy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Abdelatief"> Mohamed A. Abdelatief</a> </p> <p class="card-text"><strong>Abstract:</strong></p> An experimental and numerical study has been conducted to clarify fluid flow characteristics and pressure drop distributions of a cross-flow heat exchanger employing staggered wing-shaped tubes at different angels of attack. The water-side Rew and the air-side Rea were at 5 x 102 and at from 1.8 x 103 to 9.7 x 103, respectively. Three cases of the tubes arrangements with various angles of attack, row angles of attack and 90° cone angles were employed at the considered Rea range. Correlation of pressure drop coefficient Pdc in terms of Rea, design parameters for the studied cases were presented. The flow pattern around the staggered wing-shaped tubes bundle were predicted by using commercial CFD FLUENT 6.3.26 software package. Results indicated that the values of Pdc were increased by increasing the angle of attack from 0° to 45°, while the opposite was true for angles of attack from 135° to 180°. Comparisons between the experimental and numerical results of the present study and those, previously, obtained for similar available studies showed good agreements. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wing-shaped%20tubes" title="wing-shaped tubes">wing-shaped tubes</a>, <a href="https://publications.waset.org/abstracts/search?q=cross-flow%20cooling" title=" cross-flow cooling"> cross-flow cooling</a>, <a href="https://publications.waset.org/abstracts/search?q=staggered%20arrangement" title=" staggered arrangement"> staggered arrangement</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a> </p> <a href="https://publications.waset.org/abstracts/16278/air-flow-characteristics-and-pressure-distributions-for-staggered-wing-shaped-tubes-bundle" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16278.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">376</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=Osama%20Abdelgadir%20El-Bushra&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Osama%20Abdelgadir%20El-Bushra&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Osama%20Abdelgadir%20El-Bushra&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Osama%20Abdelgadir%20El-Bushra&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" 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