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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> 138</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Nazaliza Othman</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">108</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">381</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">107</span> Enhanced Thermal, Mechanical and Morphological Properties of CNT/HDPE Nanocomposite Using MMT as Secondary Filler</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20E.%20Ali%20Mohsin">M. E. Ali Mohsin</a>, <a href="https://publications.waset.org/abstracts/search?q=Agus%20Arsad"> Agus Arsad</a>, <a href="https://publications.waset.org/abstracts/search?q=Othman%20Y.%20Alothman"> Othman Y. Alothman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study explains the influence of secondary filler on the dispersion of carbon nanotube (CNT) reinforced high density polyethylene (HDPE) nanocomposites (CNT/HDPE). In order to understand the mixed-fillers system, Montmorillonite (MMT) was added to CNT/HDPE nanocomposites. It was followed by investigating their effect on the thermal, mechanical and morphological properties of the aforesaid nanocomposite. Incorporation of 3 wt% each of MMT into CNT/HDPE nanocomposite resulted to the increased values for the tensile and flexural strength, as compared to the pure HDPE matrix. The thermal analysis result showed improved thermal stability of the formulated nanocomposites. Transmission electron microscopy (TEM) images revealed that larger aggregates of CNTs were disappeared upon addition of these two components leading to the enhancement of thermo-mechanical properties for such composites. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=secondary%20filler" title="secondary filler">secondary filler</a>, <a href="https://publications.waset.org/abstracts/search?q=montmorillonite" title=" montmorillonite"> montmorillonite</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20nanotube" title=" carbon nanotube"> carbon nanotube</a>, <a href="https://publications.waset.org/abstracts/search?q=nanocomposite" title=" nanocomposite"> nanocomposite</a> </p> <a href="https://publications.waset.org/abstracts/4150/enhanced-thermal-mechanical-and-morphological-properties-of-cnthdpe-nanocomposite-using-mmt-as-secondary-filler" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4150.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">370</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">106</span> Modification of Newton Method in Two Point Block Backward Differentiation Formulas</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khairil%20I.%20Othman">Khairil I. Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Nur%20N.%20Kamal"> Nur N. Kamal</a>, <a href="https://publications.waset.org/abstracts/search?q=Zarina%20B.%20Ibrahim"> Zarina B. Ibrahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present modified Newton method as a new strategy for improving the efficiency of Two Point Block Backward Differentiation Formulas (BBDF) when solving stiff systems of ordinary differential equations (ODEs). These methods are constructed to produce two approximate solutions simultaneously at each iteration The detailed implementation of the predictor corrector BBDF with PE(CE)2 with modified Newton are discussed. The proposed modification of BBDF is validated through numerical results on some standard problems found in the literature and comparisons are made with the existing Block Backward Differentiation Formula. Numerical results show the advantage of using the new strategy for solving stiff ODEs in improving the accuracy of the solution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=newton%20method" title="newton method">newton method</a>, <a href="https://publications.waset.org/abstracts/search?q=two%20point" title=" two point"> two point</a>, <a href="https://publications.waset.org/abstracts/search?q=block" title=" block"> block</a>, <a href="https://publications.waset.org/abstracts/search?q=accuracy" title=" accuracy"> accuracy</a> </p> <a href="https://publications.waset.org/abstracts/47730/modification-of-newton-method-in-two-point-block-backward-differentiation-formulas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47730.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">362</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">105</span> Thermal Properties of Chitosan-Filled Empty Fruit Bunches Filter Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aziatul%20Niza%20Sadikin">Aziatul Niza Sadikin</a>, <a href="https://publications.waset.org/abstracts/search?q=Norasikin%20Othman"> Norasikin Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Ghazali%20Mohd%20Nawawi"> Mohd Ghazali Mohd Nawawi</a>, <a href="https://publications.waset.org/abstracts/search?q=Umi%20Aisah%20Asli"> Umi Aisah Asli</a>, <a href="https://publications.waset.org/abstracts/search?q=Roshafima%20Rasit%20Ali"> Roshafima Rasit Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafiziana%20Md%20Kasmani"> Rafiziana Md Kasmani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Non-woven fibrous filter media from empty fruit bunches were fabricated by using chitosan as a binder. Chitosan powder was dissolved in a 1 wt% aqueous acetic acid and 1 wt% to 4 wt% of chitosan solutions was prepared. Chitosan-filled empty fruit bunches filter media have been prepared via wet-layup method. Thermogravimetric analysis (TGA) was performed to study various thermal properties of the fibrous filter media. It was found that the fibrous filter media have undergone several decomposition stages over a range of temperatures as revealed by TGA thermo-grams, where the temperature for 10% weight loss for chitosan-filled EFB filter media and binder-less filter media was at 150oC and 300oC, Respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=empty%20fruit%20bunches" title="empty fruit bunches">empty fruit bunches</a>, <a href="https://publications.waset.org/abstracts/search?q=chitosan" title=" chitosan"> chitosan</a>, <a href="https://publications.waset.org/abstracts/search?q=filter%20media" title=" filter media"> filter media</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20property" title=" thermal property"> thermal property</a> </p> <a href="https://publications.waset.org/abstracts/3285/thermal-properties-of-chitosan-filled-empty-fruit-bunches-filter-media" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/3285.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">459</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">104</span> Experiencing Negative Thoughts? Write It, Crumple It and Throw It</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yasmin%20Othman%20Mydin">Yasmin Othman Mydin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> When one experiences problems, this may lead to negative thoughts. These thoughts may occur repetitively. The present study investigates the effectiveness of cognitive and behavioural techniques to reduce negative thoughts. 20 undergraduate university students participated as the sample in these experimental therapy sessions. Ten students received the intervention while the other ten students were in control group. 15 items Perseverative Thinking Questionnaire was administered before and after the intervention to test the effectiveness of the techniques. The behavioural techniques applied were such as, write down the negative thoughts, crumple it and throw it away. While the cognitive technique was to imagine that the thoughts are being taken out of the mind while throwing it away. Paired samples t-test analysis revealed that there were significant reductions (t=4.245,df=9, p .003) in the negative thoughts in the group that received the intervention compared to the control group. This indicates that these techniques are effective to reduce the repetitive negative thoughts. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=behaviour%20and%20cognitive%20intervention" title="behaviour and cognitive intervention">behaviour and cognitive intervention</a>, <a href="https://publications.waset.org/abstracts/search?q=negative%20thoughts" title=" negative thoughts"> negative thoughts</a>, <a href="https://publications.waset.org/abstracts/search?q=writing" title=" writing"> writing</a>, <a href="https://publications.waset.org/abstracts/search?q=psychology" title=" psychology"> psychology</a> </p> <a href="https://publications.waset.org/abstracts/24285/experiencing-negative-thoughts-write-it-crumple-it-and-throw-it" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24285.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">380</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">103</span> Characterization and Properties of Novel Flame Retardants Based on s-Triazine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sameh%20M.%20Osman">Sameh M. Osman</a>, <a href="https://publications.waset.org/abstracts/search?q=El-Refaie%20Kenawy"> El-Refaie Kenawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Zeid%20A.%20Al-Othman"> Zeid A. Al-Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20H.%20El-Newehy"> Mohamed H. El-Newehy</a>, <a href="https://publications.waset.org/abstracts/search?q=El-Saied%20A.%20Aly"> El-Saied A. Aly</a>, <a href="https://publications.waset.org/abstracts/search?q=Sherine%20N.%20Khattab"> Sherine N. Khattab</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayman%20El-Faham"> Ayman El-Faham</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Recently, there has been a huge interest in using cyanuric chloride in a wide range of functional group transformations, as Cyanuric chloride has temperature-dependent differential reactivity for displacement of chlorides with various nucleophiles In the present work, some copolymers based on s-triazine Unit were prepared by microwave-assisted synthesis. For comparison study, the copolymers were synthesized by the conventional method. Synthesized Copolymers were characterized by MP, IR, TGA, DSC and GPC. The result indicated that copolymers are thermally stable and in good in composition and yield. Further studies that involve the test for selected removal of transition elements such as Cu (II), Zn (II) and Mn (II). Moreover, the effects of the polymeric triazine derivatives containing different functional groups which expected to have a good thermal stability and char formation ability on thermal degradation and flame retardancy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flame%20retardants" title="flame retardants">flame retardants</a>, <a href="https://publications.waset.org/abstracts/search?q=heavy%20metals" title=" heavy metals"> heavy metals</a>, <a href="https://publications.waset.org/abstracts/search?q=microwave-assisted%20synthesis" title=" microwave-assisted synthesis"> microwave-assisted synthesis</a>, <a href="https://publications.waset.org/abstracts/search?q=s-triazine" title=" s-triazine"> s-triazine</a> </p> <a href="https://publications.waset.org/abstracts/38293/characterization-and-properties-of-novel-flame-retardants-based-on-s-triazine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38293.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">364</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">102</span> Effectiveness of Earthing System in Vertical Configurations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=S.%20Yunus">S. Yunus</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Suratman"> A. Suratman</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Mohamad%20Nor"> N. Mohamad Nor</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Othman"> M. Othman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the measurement and simulation results by Finite Element Method (FEM) for earth resistance (R<sub>DC</sub>) for interconnected vertical ground rod configurations. The soil resistivity was measured using the Wenner four-pin Method, and R<sub>DC </sub>was measured using the Fall of Potential (FOP) method, as outlined in the standard. Genetic Algorithm (GA) is employed to interpret the soil resistivity to that of a 2-layer soil model. The same soil resistivity data that were obtained by Wenner four-pin method were used in FEM for simulation. This paper compares the results of R<sub>DC</sub> obtained by FEM simulation with the real measurement at field site. A good agreement was seen for R<sub>DC </sub>obtained by measurements and FEM. This shows that FEM is a reliable software to be used for design of earthing systems. It is also found that the parallel rod system has a better performance compared to a similar setup using a grid layout. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=earthing%20system" title="earthing system">earthing system</a>, <a href="https://publications.waset.org/abstracts/search?q=earth%20electrodes" title=" earth electrodes"> earth electrodes</a>, <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20method" title=" finite element method"> finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=genetic%20algorithm" title=" genetic algorithm"> genetic algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=earth%20resistances" title=" earth resistances"> earth resistances</a> </p> <a href="https://publications.waset.org/abstracts/128846/effectiveness-of-earthing-system-in-vertical-configurations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128846.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">112</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">101</span> Its about Cortana, Microsoft’s Virtual Assistant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aya%20Idriss">Aya Idriss</a>, <a href="https://publications.waset.org/abstracts/search?q=Esraa%20Othman"> Esraa Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Lujain%20Malak"> Lujain Malak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Artificial intelligence is the emulation of human intelligence processes by machines, particularly computer systems that act logically. Some of the specific applications of AI include natural language processing, speech recognition, and machine vision. Cortana is a virtual assistant and she’s an example of an AI Application. Microsoft made it possible for this app to be accessed not only on laptops and PCs but can be downloaded on mobile phones and used as a virtual assistant which was a huge success. Cortana can offer a lot apart from the basic orders such as setting alarms and marking the calendar. Its capabilities spread past that, for example, it provides us with listening to music and podcasts on the go, managing my to-do list and emails, connecting with my contacts hands-free by simply just telling the virtual assistant to call somebody, gives me instant answers and so on. A questionnaire was sent online to numerous friends and family members to perform the study, which is critical in evaluating Cortana's recognition capacity and the majority of the answers were in favor of Cortana’s capabilities. The results of the questionnaire assisted us in determining the level of Cortana's skills. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20intelligence" title="artificial intelligence">artificial intelligence</a>, <a href="https://publications.waset.org/abstracts/search?q=Cortana" title=" Cortana"> Cortana</a>, <a href="https://publications.waset.org/abstracts/search?q=AI" title=" AI"> AI</a>, <a href="https://publications.waset.org/abstracts/search?q=abstract" title=" abstract"> abstract</a> </p> <a href="https://publications.waset.org/abstracts/145049/its-about-cortana-microsofts-virtual-assistant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/145049.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">184</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">100</span> The Impact of Environmental Dynamism on Strategic Outsourcing Success</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Ghozali%20Hassan">Mohamad Ghozali Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdul%20Aziz%20Othman"> Abdul Aziz Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Azril%20Ismail"> Mohd Azril Ismail</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Adapting quickly to environmental dynamism is essential for an organization to develop outsourcing strategic and management in order to sustain competitive advantage. This research used the Partial Least Squares Structural Equation Modeling (PLS-SEM) tool to investigate the factors of environmental dynamism impact on the strategic outsourcing success among electrical and electronic manufacturing industries in outsourcing management. Statistical results confirm that the inclusion of customer demand, technological change, and competition level as a new combination concept of environmental dynamism, has positive effects on outsourcing success. Additionally, this research demonstrates the acceptability of PLS-SEM as a statistical analysis to furnish a better understanding of environmental dynamism in outsourcing management in Malaysia. A practical finding contributes to academics and practitioners in the field of outsourcing management. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environmental%20dynamism" title="environmental dynamism">environmental dynamism</a>, <a href="https://publications.waset.org/abstracts/search?q=customer%20demand" title=" customer demand"> customer demand</a>, <a href="https://publications.waset.org/abstracts/search?q=technological%20change" title=" technological change"> technological change</a>, <a href="https://publications.waset.org/abstracts/search?q=competition%20level" title=" competition level"> competition level</a>, <a href="https://publications.waset.org/abstracts/search?q=outsourcing%20success" title=" outsourcing success "> outsourcing success </a> </p> <a href="https://publications.waset.org/abstracts/24014/the-impact-of-environmental-dynamism-on-strategic-outsourcing-success" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24014.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">505</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">99</span> Cytochrome B Diversity and Phylogeny of Egyptian Sheep Breeds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Othman%20E.%20Othman">Othman E. Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Agn%C3%A9s%20Germot"> Agnés Germot</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Petit"> Daniel Petit</a>, <a href="https://publications.waset.org/abstracts/search?q=Abderrahman%20Maftah"> Abderrahman Maftah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Threats to the biodiversity are increasing due to the loss of genetic diversity within the species utilized in agriculture. Due to the progressive substitution of the less productive, locally adapted and native breeds by highly productive breeds, the number of threatened breeds is increased. In these conditions, it is more strategically important than ever to preserve as much the farm animal diversity as possible, to ensure a prompt and proper response to the needs of future generations. Mitochondrial (mtDNA) sequencing has been used to explain the origins of many modern domestic livestock species. Studies based on sequencing of sheep mitochondrial DNA showed that there are five maternal lineages in the world for domestic sheep breeds; A, B, C, D and E. Because of the eastern location of Egypt in the Mediterranean basin and the presence of fat-tailed sheep breeds- character quite common in Turkey and Syria- where genotypes that seem quite primitive, the phylogenetic studies of Egyptian sheep breeds become particularly attractive. We aimed in this work to clarify the genetic affinities, biodiversity and phylogeny of five Egyptian sheep breeds using cytochrome B sequencing. Blood samples were collected from 63 animals belonging to the five tested breeds; Barki, Rahmani, Ossimi, Saidi and Sohagi. The total DNA was extracted and the specific primer allowed the conventional PCR amplification of the cytochrome B region of mtDNA (approximately 1272 bp). PCR amplified products were purified and sequenced. The alignment of Sixty-three samples was done using BioEdit software. DnaSP 5.00 software was used to identify the sequence variation and polymorphic sites in the aligned sequences. The result showed that the presence of 34 polymorphic sites leading to the formation of 18 haplotypes. The haplotype diversity in five tested breeds ranged from 0.676 in Rahmani breed to 0.894 in Sohagi breed. The genetic distances (D) and the average number of pairwise differences (Dxy) between breeds were estimated. The lowest distance was observed between Rahmani and Saidi (D: 1.674 and Dxy: 0.00150) while the highest distance was observed between Ossimi and Sohagi (D: 5.233 and Dxy: 0.00475). Neighbour-joining (Phylogeny) tree was constructed using Mega 5.0 software. The sequences of the 63 analyzed samples were aligned with references sequences of different haplogroups. The phylogeny result showed the presence of three haplogroups (HapA, HapB and HapC) in the 63 examined samples. The other two haplogroups described in literature (HapD and HapE) were not found. The result showed that 50 out of 63 tested animals cluster with haplogroup B (79.37%) whereas 7 tested animals cluster with haplogroup A (11.11%) and 6 animals cluster with haplogroup C (9.52%). In conclusion, the phylogenetic reconstructions showed that the majority of Egyptian sheep breeds belonging to haplogroup B which is the dominant haplogroup in Eastern Mediterranean countries like Syria and Turkey. Some individuals are belonging to haplogroups A and C, suggesting that the crosses were done with other breeds for characteristic selection for growth and wool quality. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cytochrome%20B" title="cytochrome B">cytochrome B</a>, <a href="https://publications.waset.org/abstracts/search?q=diversity" title=" diversity"> diversity</a>, <a href="https://publications.waset.org/abstracts/search?q=phylogheny" title=" phylogheny"> phylogheny</a>, <a href="https://publications.waset.org/abstracts/search?q=Egyptian%20sheep%20breeds" title=" Egyptian sheep breeds"> Egyptian sheep breeds</a> </p> <a href="https://publications.waset.org/abstracts/45865/cytochrome-b-diversity-and-phylogeny-of-egyptian-sheep-breeds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45865.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">379</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">98</span> Development of ELF Passive Shielding Application Using Magnetic Aqueous Substrate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=W.%20N.%20L.%20Mahadi">W. N. L. Mahadi</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20N.%20Syed%20Zin"> S. N. Syed Zin</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20A.%20R.%20Othman"> W. A. R. Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Mohd%20Rasyid"> N. A. Mohd Rasyid</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Jusoh"> N. Jusoh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Public concerns on Extremely Low Frequency (ELF) Electromagnetic Field (EMF) exposure have been elongated since the last few decades. Electrical substations and high tension rooms (HT room) in commercial buildings were among the contributing factors emanating ELF magnetic fields. This paper discussed various shielding methods conventionally used in mitigating the ELF exposure. Nevertheless, the standard methods were found to be impractical and incapable of meeting currents shielding demands. In response to that, remarkable researches were conducted in effort to invent novel methods which is more convenient and efficient such as magnetic aqueous shielding or paint, textiles and papers shielding. A mitigation method using magnetic aqueous substrate in shielding application was proposed in this paper for further investigation. using Manganese Zinc Ferrite (Mn0.4Zn0.6Fe2O4). The magnetic field and flux distribution inside the aqueous magnetic material are evaluated to optimize shielding against ELF-EMF exposure, as to mitigate its exposure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ELF%20shielding" title="ELF shielding">ELF shielding</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20aqueous%20substrate" title=" magnetic aqueous substrate"> magnetic aqueous substrate</a>, <a href="https://publications.waset.org/abstracts/search?q=shielding%20effectiveness" title=" shielding effectiveness"> shielding effectiveness</a>, <a href="https://publications.waset.org/abstracts/search?q=passive%20shielding" title=" passive shielding"> passive shielding</a>, <a href="https://publications.waset.org/abstracts/search?q=magnetic%20material" title=" magnetic material"> magnetic material</a> </p> <a href="https://publications.waset.org/abstracts/17277/development-of-elf-passive-shielding-application-using-magnetic-aqueous-substrate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17277.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">538</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">97</span> Optimization of Electrical Discharge Machining Parameters in Machining AISI D3 Tool Steel by Grey Relational Analysis </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Othman%20Mohamed%20Altheni">Othman Mohamed Altheni</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdurrahman%20Abusaada"> Abdurrahman Abusaada</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study presents optimization of multiple performance characteristics [material removal rate (MRR), surface roughness (Ra), and overcut (OC)] of hardened AISI D3 tool steel in electrical discharge machining (EDM) using Taguchi method and Grey relational analysis. Machining process parameters selected were pulsed current Ip, pulse-on time Ton, pulse-off time Toff and gap voltage Vg. Based on ANOVA, pulse current is found to be the most significant factor affecting EDM process. Optimized process parameters are simultaneously leading to a higher MRR, lower Ra, and lower OC are then verified through a confirmation experiment. Validation experiment shows an improved MRR, Ra and OC when Taguchi method and grey relational analysis were used <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=edm%20parameters" title="edm parameters">edm parameters</a>, <a href="https://publications.waset.org/abstracts/search?q=grey%20relational%20analysis" title=" grey relational analysis"> grey relational analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=Taguchi%20method" title=" Taguchi method"> Taguchi method</a>, <a href="https://publications.waset.org/abstracts/search?q=ANOVA" title=" ANOVA"> ANOVA</a> </p> <a href="https://publications.waset.org/abstracts/52166/optimization-of-electrical-discharge-machining-parameters-in-machining-aisi-d3-tool-steel-by-grey-relational-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/52166.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">299</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">96</span> Design and Facile Synthesis of New Amino Acid Derivatives with Anti-Tumor and Antimicrobial Activities</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hoda%20Sabry%20Othman">Hoda Sabry Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Randa%20Helmy%20Swellem"> Randa Helmy Swellem</a>, <a href="https://publications.waset.org/abstracts/search?q=Galal%20Abd%20El-Moein%20Nawwar"> Galal Abd El-Moein Nawwar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> N-cyanoacetyl glycine is a reactive polyfunctional precursor for synthesis of new difficult accessible compounds including pyridones, thiazolopyridine and others. The key step of this protocol is the formation of different ylidines which underwent Michael addition with carbon nucleophiles affording various heterocyclic compounds. Selected compounds underwent pharmacological evaluation, in vitro against two cell lines; breast cell line (MCF-7),and liver cell line(HEPG2). Compounds 14, 15a and 16 showed IC50 values 8.93, 8.18 and 8.03 (µ/ml) respectively for breast cell line (MCF-7), while the standard drug (Tamoxifen) revealed IC50 8.31. With respect to the liver cell line (HEPG2), compounds 14 and 15a revealed IC50 18.4 and 13.6(µ/ml) respectively while the IC50 of the standard drug(5-Flurouracil) is 25(µ/ml). The antimicrobial activity was also screened and revealed that oxime 7 and ylidine 9f showed a broad-spectrum activity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=antitumor" title="antitumor">antitumor</a>, <a href="https://publications.waset.org/abstracts/search?q=cyanoacetyl%20glycine" title=" cyanoacetyl glycine"> cyanoacetyl glycine</a>, <a href="https://publications.waset.org/abstracts/search?q=heterocycles" title=" heterocycles"> heterocycles</a>, <a href="https://publications.waset.org/abstracts/search?q=pyridones" title=" pyridones"> pyridones</a> </p> <a href="https://publications.waset.org/abstracts/41735/design-and-facile-synthesis-of-new-amino-acid-derivatives-with-anti-tumor-and-antimicrobial-activities" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41735.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">341</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">95</span> Parental Discourse on Childhood Vaccination Programme: A Case Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tengku%20Farah%20Petri%20Tengku%20Mahmood">Tengku Farah Petri Tengku Mahmood</a>, <a href="https://publications.waset.org/abstracts/search?q=Shameem%20Rafik-Galea"> Shameem Rafik-Galea</a>, <a href="https://publications.waset.org/abstracts/search?q=Zalina%20Mohd%20Kasim"> Zalina Mohd Kasim</a>, <a href="https://publications.waset.org/abstracts/search?q=Norlijah%20Othman"> Norlijah Othman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Childhood vaccination programme is mandatory in Malaysia. However, the decision to vaccinate or not vaccinate children is still left to the parents. Presently, there are parents who are opting out of vaccination claiming that it causes autism and other chronic disorders despite inconclusive evidence. There appears to be a dangerous trend among some Malaysian parents to not vaccinate their children and to not participate in the childhood vaccination programme. This study presents preliminary findings of parental discourse on childhood vaccination programme through the perspective of the Integrated Threat Theory. An in-depth interview was carried out to investigate a parent’s concern of the effects of childhood vaccination on children. A thematic discourse analysis was used to analyse the transcribed data. The emerging themes based on the analysis and their relevance to our understanding of a parent’s concerns of the effects of childhood vaccination on children are discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=case%20study" title="case study">case study</a>, <a href="https://publications.waset.org/abstracts/search?q=parental%20discourse" title=" parental discourse"> parental discourse</a>, <a href="https://publications.waset.org/abstracts/search?q=thematic%20discourse%20analysis" title=" thematic discourse analysis"> thematic discourse analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=childhood%20vaccination" title=" childhood vaccination"> childhood vaccination</a> </p> <a href="https://publications.waset.org/abstracts/64051/parental-discourse-on-childhood-vaccination-programme-a-case-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/64051.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">94</span> Opportunities of Diversification Strategy Investment among the Top Ten Cryptocurrencies in Crypto Industry</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Surayyo%20Shaamirova">Surayyo Shaamirova</a>, <a href="https://publications.waset.org/abstracts/search?q=Anwar%20Hasan%20Abdullah%20Othman"> Anwar Hasan Abdullah Othman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study investigates the co-integration association between the top 10 cryptocurrencies, namely Bitcoin, Ethereum, Ripple, Bitcoin Cash, EOS, Cardano, Litecoin, Stellar, IOTA, and NEO. The study applies Johansen Juselius co-integration test to examine the long-run co-integration and utilize the Engle and Granger casualty test to examine the short-run relationship. The findings of the study show that there is a strong co-integration relationship among the cryptocurrencies; however, in the short run, there is no causal relationship among the crypto currencies. These results, therefore, suggest that there are portfolio diversification opportunities in the cryptocurrencies industry when it comes to long run investment decisions, on the other hand, the cryptocurrencies industry shows the characteristics of efficiency in the short-run. This is an indication of a non-speculation investment in the cryptocurrencies industry in the short term investment. <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=Johansen-Juselius%20co-integration%20test" title=" Johansen-Juselius co-integration test"> Johansen-Juselius co-integration test</a>, <a href="https://publications.waset.org/abstracts/search?q=Engle%20and%20Granger%20casualty%20test" title=" Engle and Granger casualty test"> Engle and Granger casualty test</a>, <a href="https://publications.waset.org/abstracts/search?q=portfolio%20diversification" title=" portfolio diversification"> portfolio diversification</a> </p> <a href="https://publications.waset.org/abstracts/120364/opportunities-of-diversification-strategy-investment-among-the-top-ten-cryptocurrencies-in-crypto-industry" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120364.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">145</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">93</span> Evaluation of Transfer Capability Considering Uncertainties of System Operating Condition and System Cascading Collapse</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nur%20Ashida%20Salim">Nur Ashida Salim</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Murtadha%20Othman"> Muhammad Murtadha Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Ismail%20Musirin"> Ismail Musirin</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Salleh%20Serwan"> Mohd Salleh Serwan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Over the past few decades, the power system industry in many developing and developed countries has gone through a restructuring process of the industry where they are moving towards a deregulated power industry. This situation will lead to competition among the generation and distribution companies to achieve a certain objective which is to provide quality and efficient production of electric energy, which will reduce the price of electricity. Therefore it is important to obtain an accurate value of the Available Transfer Capability (ATC) and Transmission Reliability Margin (TRM) in order to ensure the effective power transfer between areas during the occurrence of uncertainties in the system. In this paper, the TRM and ATC is determined by taking into consideration the uncertainties of the system operating condition and system cascading collapse by applying the bootstrap technique. A case study of the IEEE RTS-79 is employed to verify the robustness of the technique proposed in the determination of TRM and ATC. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=available%20transfer%20capability" title="available transfer capability">available transfer capability</a>, <a href="https://publications.waset.org/abstracts/search?q=bootstrap%20technique" title=" bootstrap technique"> bootstrap technique</a>, <a href="https://publications.waset.org/abstracts/search?q=cascading%20collapse" title=" cascading collapse"> cascading collapse</a>, <a href="https://publications.waset.org/abstracts/search?q=transmission%20reliability%20margin" title=" transmission reliability margin"> transmission reliability margin</a> </p> <a href="https://publications.waset.org/abstracts/4347/evaluation-of-transfer-capability-considering-uncertainties-of-system-operating-condition-and-system-cascading-collapse" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4347.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">413</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> Iris Detection on RGB Image for Controlling Side Mirror</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Norzalina%20Othman">Norzalina Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Nurul%20Na%E2%80%99imy%20Wan"> Nurul Na’imy Wan</a>, <a href="https://publications.waset.org/abstracts/search?q=Azliza%20Mohd%20Rusli"> Azliza Mohd Rusli</a>, <a href="https://publications.waset.org/abstracts/search?q=Wan%20Noor%20Syahirah%20Meor%20Idris"> Wan Noor Syahirah Meor Idris</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Iris detection is a process where the position of the eyes is extracted from the face images. It is a current method used for many applications such as for security purpose and drowsiness detection. This paper proposes the use of eyes detection in controlling side mirror of motor vehicles. The eyes detection method aims to make driver easy to adjust the side mirrors automatically. The system will determine the midpoint coordinate of eyes detection on RGB (color) image and the input signal from y-coordinate will send it to controller in order to rotate the angle of side mirror on vehicle. The eye position was cropped and the coordinate of midpoint was successfully detected from the circle of iris detection using Viola Jones detection and circular Hough transform methods on RGB image. The coordinate of midpoint from the experiment are tested using controller to determine the angle of rotation on the side mirrors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=iris%20detection" title="iris detection">iris detection</a>, <a href="https://publications.waset.org/abstracts/search?q=midpoint%20coordinates" title=" midpoint coordinates"> midpoint coordinates</a>, <a href="https://publications.waset.org/abstracts/search?q=RGB%20images" title=" RGB images"> RGB images</a>, <a href="https://publications.waset.org/abstracts/search?q=side%20mirror" title=" side mirror"> side mirror</a> </p> <a href="https://publications.waset.org/abstracts/8133/iris-detection-on-rgb-image-for-controlling-side-mirror" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8133.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">430</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> The Doctor-Patient Interaction Experience Hierarchy Using Rasch Measurement Model Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wan%20Nur%27ashiqin%20Wan%20Mohamad">Wan Nur'ashiqin Wan Mohamad</a>, <a href="https://publications.waset.org/abstracts/search?q=Zarina%20Othman"> Zarina Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Azman%20Abas"> Mohd Azman Abas</a>, <a href="https://publications.waset.org/abstracts/search?q=Azizah%20Ya%27acob"> Azizah Ya'acob</a>, <a href="https://publications.waset.org/abstracts/search?q=Rozmel%20Abdul%20Latiff"> Rozmel Abdul Latiff</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Effective doctor-patient interaction is vital to both doctor and patient relationship. It is the cornerstone of good practice and an integral quality of a healthcare institution. This paper presented the hierarchy of the communication elements in doctor-patient interaction during medical consultations in a medical centre in Malaysia. This study adapted The Picker Patient Experience Questionnaire (2002) to obtain the information from patients. The questionnaire survey was responded by 100 patients between the ages of 20 and 50. Data collected were analysed using Rasch Measurement Model to yield the hierarchy of the communication elements in doctor-patient interaction. The findings showed that the three highest ranking on the doctor-patient interaction were doctor’s treatment, important information delivery and patient satisfaction of doctor’s responses. The results are valuable in developing the framework for communication ethics of doctors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=communication%20elements" title="communication elements">communication elements</a>, <a href="https://publications.waset.org/abstracts/search?q=doctor-patient%20interaction" title=" doctor-patient interaction"> doctor-patient interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=hierarchy" title=" hierarchy"> hierarchy</a>, <a href="https://publications.waset.org/abstracts/search?q=Rasch%20measurement%20model" title=" Rasch measurement model"> Rasch measurement model</a> </p> <a href="https://publications.waset.org/abstracts/98199/the-doctor-patient-interaction-experience-hierarchy-using-rasch-measurement-model-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/98199.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">169</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> Optimization of Machining Parameters in AlSi/10%AlN Metal Matrix Composite Material by TiN Coating Insert</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nurul%20Na%27imy%20Wan">Nurul Na'imy Wan</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Sazali%20Said"> Mohamad Sazali Said</a>, <a href="https://publications.waset.org/abstracts/search?q=Jaharah%20Ab.%20Ghani"> Jaharah Ab. Ghani</a>, <a href="https://publications.waset.org/abstracts/search?q=Rusli%20Othman"> Rusli Othman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents the surface roughness of the aluminium silicon alloy (AlSi) matrix composite which has been reinforced with aluminium nitride (AlN). Experiments were conducted at various cutting speeds, feed rates, and depths of cut, according to a standard orthogonal array L27 of Taguchi method using TiN coating tool of insert. The signal-to-noise (S/N) ratio and analysis of variance are applied to study the characteristic performance of cutting speeds, feed rates and depths of cut in measuring the surface roughness during the milling operation. The surface roughness was observed using Mitutoyo Formtracer CS-500 and analyzed using the Taguchi method. From the Taguchi analysis, it was found that cutting speed of 230 m/min, feed rate of 0.4 mm/tooth, depth of cut of 0.3 mm were the optimum machining parameters using TiN coating insert. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AlSi%2FAlN%20metal%20matrix%20composite%20%28MMC%29" title="AlSi/AlN metal matrix composite (MMC)">AlSi/AlN metal matrix composite (MMC)</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20roughness" title=" surface roughness"> surface roughness</a>, <a href="https://publications.waset.org/abstracts/search?q=Taguchi%20method" title=" Taguchi method"> Taguchi method</a>, <a href="https://publications.waset.org/abstracts/search?q=machining%20parameters" title=" machining parameters"> machining parameters</a> </p> <a href="https://publications.waset.org/abstracts/7183/optimization-of-machining-parameters-in-alsi10aln-metal-matrix-composite-material-by-tin-coating-insert" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/7183.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">89</span> Understanding the Performance and Loss Mechanisms in Ag Alloy CZTS Solar Cells: Photocurrent Generation, Charge Separation, and Carrier Transport</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kang%20Jian%20Xian">Kang Jian Xian</a>, <a href="https://publications.waset.org/abstracts/search?q=Huda%20Abdullah"> Huda Abdullah</a>, <a href="https://publications.waset.org/abstracts/search?q=Md.%20Akhtaruzzaman"> Md. Akhtaruzzaman</a>, <a href="https://publications.waset.org/abstracts/search?q=Iskandar%20Yahya"> Iskandar Yahya</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Hafiz%20Dzarfan%20Othman"> Mohd Hafiz Dzarfan Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Brian%20Yulianto"> Brian Yulianto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The CZTS absorber layer doped with a silver (Ag) is one of the candidates that suggest improving the efficiency of thin films. Silver element functions to reduce antisite defects, increase grain size and create the plasmonic effect. In this work, an experimental study has been done to investigate the electrical and physical properties of CZTS, ACZTS, and AZTS. Ag replaces the Cu in (Cu1-xAgx)2ZnSnS4 (ACZTS) is up to x ≤1. ACZTS thin-films solar cells have been deposited by sol–the gel spin coating method. There are a total of 19 samples done with 11 significant percentages (0%, 10%, 20%… 100%) to show the whole phenomena of efficiency rate and nine specific percentages to find out the best concentration rate for Ag-doped. The obtained results can be helpful for better understanding ACZTS layers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CZTS" title="CZTS">CZTS</a>, <a href="https://publications.waset.org/abstracts/search?q=ACZTS" title=" ACZTS"> ACZTS</a>, <a href="https://publications.waset.org/abstracts/search?q=AZTS" title=" AZTS"> AZTS</a>, <a href="https://publications.waset.org/abstracts/search?q=silver" title=" silver"> silver</a>, <a href="https://publications.waset.org/abstracts/search?q=antisite" title=" antisite"> antisite</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=thin-film%20solar%20cell" title=" thin-film solar cell"> thin-film solar cell</a> </p> <a href="https://publications.waset.org/abstracts/161098/understanding-the-performance-and-loss-mechanisms-in-ag-alloy-czts-solar-cells-photocurrent-generation-charge-separation-and-carrier-transport" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161098.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">102</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">88</span> Learning Styles Difference in Difficulties of Generating Idea</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20H.%20Yee">M. H. Yee</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Md%20Yunos"> J. Md Yunos</a>, <a href="https://publications.waset.org/abstracts/search?q=W.%20Othman"> W. Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Hassan"> R. Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20K.%20Tee"> T. K. Tee</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20M.%20Mohamad"> M. M. Mohamad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The generation of an idea that goes through several phases is affected by individual factors, interests, preferences and motivation. The purpose of this research was to analyze the difference in difficulties of generating ideas according to individual learning styles. A total of 375 technical students from four technical universities in Malaysia were randomly selected as samples. The Kolb Learning Styles Inventory and a set of developed questionnaires were used in this research. The results showed that the most dominant learning style is among technical students is Doer. A total of 319 (85.1%) technical students faced difficulties in solving individual assignments. Most of the problem faced by technical students is the difficulty of generating ideas for solving individual assignments. There was no significant difference in difficulties of generating ideas according to students’ learning styles. Therefore, students need to learn higher order thinking skills enabling students to generate ideas and consequently complete assignments. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=difference" title="difference">difference</a>, <a href="https://publications.waset.org/abstracts/search?q=difficulties" title=" difficulties"> difficulties</a>, <a href="https://publications.waset.org/abstracts/search?q=generating%20idea" title=" generating idea"> generating idea</a>, <a href="https://publications.waset.org/abstracts/search?q=learning%20styles" title=" learning styles"> learning styles</a>, <a href="https://publications.waset.org/abstracts/search?q=Kolb%20Learning%20Styles%20Inventory" title=" Kolb Learning Styles Inventory"> Kolb Learning Styles Inventory</a> </p> <a href="https://publications.waset.org/abstracts/4296/learning-styles-difference-in-difficulties-of-generating-idea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/4296.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">452</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> Removal of Phenol from Aqueous Solutions by Ferrite Catalysts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bayan%20Alqasem">Bayan Alqasem</a>, <a href="https://publications.waset.org/abstracts/search?q=Israa%20Othman"> Israa Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Abu%20Haija"> Mohammad Abu Haija</a>, <a href="https://publications.waset.org/abstracts/search?q=Fawzi%20Banat"> Fawzi Banat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The large-scale production of wastewater containing highly toxic pollutants made it necessary to find efficient water treatment technologies. Phenolic compounds, which are known to be persistent and hazardous, are highly presented in wastewater. In this study, different ferrite catalysts CrFe₂O₄, CuFe₂O₄, MgFe₂O₄, MnFe₂O₄, NiFe₂O₄, and ZnFe₂O₄ were employed to study the catalytic degradation of phenol aqueous solutions. The catalysts were prepared via sol-gel and co-precipitation methods. All of the prepared catalysts were characterized using infrared spectroscopy (IR), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The ferrites catalytic activities were tested towards phenol degradation using high-performance liquid chromatography (HPLC). The photocatalytic properties of the ferrites were also investigated. The experimental results suggested that CuFe₂O₄ is an effective catalyst for the removal of phenol from wastewater. Additionally, different CuFe₂O₄composites were also prepared either by varying the metal ratios or incorporating chemically reduced graphene oxide in the ferrite cluster. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=phenol%20degradation" title="phenol degradation">phenol degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=ferrite%20catalysts" title=" ferrite catalysts"> ferrite catalysts</a>, <a href="https://publications.waset.org/abstracts/search?q=ferrite%20composites" title=" ferrite composites"> ferrite composites</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalysis" title=" photocatalysis"> photocatalysis</a> </p> <a href="https://publications.waset.org/abstracts/89080/removal-of-phenol-from-aqueous-solutions-by-ferrite-catalysts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89080.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">220</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> Development of Variable Order Block Multistep Method for Solving Ordinary Differential Equations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Suleiman">Mohamed Suleiman</a>, <a href="https://publications.waset.org/abstracts/search?q=Zarina%20Bibi%20Ibrahim"> Zarina Bibi Ibrahim</a>, <a href="https://publications.waset.org/abstracts/search?q=Nor%20Ain%20Azeany"> Nor Ain Azeany</a>, <a href="https://publications.waset.org/abstracts/search?q=Khairil%20Iskandar%20Othman"> Khairil Iskandar Othman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a class of variable order fully implicit multistep Block Backward Differentiation Formulas (VOBBDF) using uniform step size for the numerical solution of stiff ordinary differential equations (ODEs) is developed. The code will combine three multistep block methods of order four, five and six. The order selection is based on approximation of the local errors with specific tolerance. These methods are constructed to produce two approximate solutions simultaneously at each iteration in order to further increase the efficiency. The proposed VOBBDF is validated through numerical results on some standard problems found in the literature and comparisons are made with single order Block Backward Differentiation Formula (BBDF). Numerical results shows the advantage of using VOBBDF for solving ODEs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=block%20backward%20differentiation%20formulas" title="block backward differentiation formulas">block backward differentiation formulas</a>, <a href="https://publications.waset.org/abstracts/search?q=uniform%20step%20size" title=" uniform step size"> uniform step size</a>, <a href="https://publications.waset.org/abstracts/search?q=ordinary%20differential%20equations" title=" ordinary differential equations"> ordinary differential equations</a> </p> <a href="https://publications.waset.org/abstracts/16451/development-of-variable-order-block-multistep-method-for-solving-ordinary-differential-equations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16451.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">452</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> Coastal Hydraulic Modelling to Ascertain Stability of Rubble Mound Breakwater</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Safari%20Mat%20Desa">Safari Mat Desa</a>, <a href="https://publications.waset.org/abstracts/search?q=Othman%20A.%20Karim"> Othman A. Karim</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohd%20Kamarulhuda%20Samion"> Mohd Kamarulhuda Samion</a>, <a href="https://publications.waset.org/abstracts/search?q=Saiful%20Bahri%20Hamzah"> Saiful Bahri Hamzah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Rubble mound breakwater was one of the most popular designs in Malaysia, constructed at the river mouth to dissipate the incoming wave energy from the seaward. Geometrically characteristics in trapezoid, crest width, and bottom width will determine the hypotonus stability, whilst structural height was designed for wave overtopping consideration. Physical hydraulic modelling in two-dimensional facilities was instigated in the flume to test the stability as well as the overtopping rate complied with the method of similarity, namely kinematic, dynamic, and geometric. Scaling effects of wave characteristics were carried out in order to acquire significant interaction of wave height, wave period, and water depth. Results showed two-dimensional physical modelling has proven reliable capability to ascertain breakwater stability significantly. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=breakwater" title="breakwater">breakwater</a>, <a href="https://publications.waset.org/abstracts/search?q=geometrical%20characteristic" title=" geometrical characteristic"> geometrical characteristic</a>, <a href="https://publications.waset.org/abstracts/search?q=wave%20overtopping" title=" wave overtopping"> wave overtopping</a>, <a href="https://publications.waset.org/abstracts/search?q=physical%20hydraulic%20modelling" title=" physical hydraulic modelling"> physical hydraulic modelling</a>, <a href="https://publications.waset.org/abstracts/search?q=method%20of%20similarity" title=" method of similarity"> method of similarity</a>, <a href="https://publications.waset.org/abstracts/search?q=wave%20characteristic" title=" wave characteristic"> wave characteristic</a> </p> <a href="https://publications.waset.org/abstracts/167225/coastal-hydraulic-modelling-to-ascertain-stability-of-rubble-mound-breakwater" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167225.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">123</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> Characteristics of the Poor in Malaysia: Evidence from E-Kasih Database an Explanatory Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zunaidah%20Ab%20Hasan">Zunaidah Ab Hasan</a>, <a href="https://publications.waset.org/abstracts/search?q=Azhana%20Othman"> Azhana Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Abd%20Halim%20Mohd%20Noor"> Abd Halim Mohd Noor</a>, <a href="https://publications.waset.org/abstracts/search?q=Nor%20Shahrina%20Mohd%20Rafien"> Nor Shahrina Mohd Rafien</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study highlights some of the factors of the poor in Malaysia by household and individual level. The discussion covers the demographic, economic and social aspects. The data is derived from the National Databank of Poverty Malaysia (eKasih) for the year of 2013. The explanatory analysis is used to analyse factor of poverty in Malaysia specifically in Malacca. The evidence confirms that male are prone to be poor. For the ethnic, majority of the poor are Malays. The number of dependency and unskilled head of household also contributes to the factors to be poor. Despite that health and physical condition condition does not affect the household head is likely to be poor. Outcome of this study hope to provide guideline that would beneficial to various stakeholders such as zakat institutions, policy makers, welfare department and other agencies related. This will lead to better standard of living as envisioned in the fourth National Key Result Areas (NKRAs). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=factors%20of%20poverty" title="factors of poverty">factors of poverty</a>, <a href="https://publications.waset.org/abstracts/search?q=eKasih" title=" eKasih"> eKasih</a>, <a href="https://publications.waset.org/abstracts/search?q=explanatory%20analysis" title=" explanatory analysis"> explanatory analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=welfare%20department" title=" welfare department "> welfare department </a> </p> <a href="https://publications.waset.org/abstracts/11739/characteristics-of-the-poor-in-malaysia-evidence-from-e-kasih-database-an-explanatory-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11739.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">379</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> Optimal Load Control Strategy in the Presence of Stochastically Dependent Renewable Energy Sources</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahmoud%20M.%20Othman">Mahmoud M. Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Almoataz%20Y.%20Abdelaziz"> Almoataz Y. Abdelaziz</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasser%20G.%20Hegazy"> Yasser G. Hegazy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a load control strategy based on modification of the Big Bang Big Crunch optimization method. The proposed strategy aims to determine the optimal load to be controlled and the corresponding time of control in order to minimize the energy purchased from substation. The presented strategy helps the distribution network operator to rely on the renewable energy sources in supplying the system demand. The renewable energy sources used in the presented study are modeled using the diagonal band Copula method and sequential Monte Carlo method in order to accurately consider the multivariate stochastic dependence between wind power, photovoltaic power and the system demand. The proposed algorithms are implemented in MATLAB environment and tested on the IEEE 37-node feeder. Several case studies are done and the subsequent discussions show the effectiveness of the proposed algorithm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=big%20bang%20big%20crunch" title="big bang big crunch">big bang big crunch</a>, <a href="https://publications.waset.org/abstracts/search?q=distributed%20generation" title=" distributed generation"> distributed generation</a>, <a href="https://publications.waset.org/abstracts/search?q=load%20control" title=" load control"> load control</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=planning" title=" planning"> planning</a> </p> <a href="https://publications.waset.org/abstracts/44666/optimal-load-control-strategy-in-the-presence-of-stochastically-dependent-renewable-energy-sources" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/44666.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">352</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> Performance of Modified Wedge Anchorage System for Pre-Stressed FRP Bars</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Othman%20S.%20Alsheraida">Othman S. Alsheraida</a>, <a href="https://publications.waset.org/abstracts/search?q=Sherif%20El-Gamal"> Sherif El-Gamal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fiber Reinforced Polymers (FRP) is a composite material with exceptional properties that are capable of replacing conventional steel reinforcement in reinforced and pre-stressed concrete structures. However, the main obstacle for their wide use in the pre-stressed concrete application is the anchorage system. Due to the weakness of FRP in the transverse direction, the pre-stressing capacity of FRP bars is limited. This paper investigates the modification of the conventional wedge anchorage system to be used for stressing of FRP bars in pre-stressed applications. Epoxy adhesive material with glass FRP (GFRP) bars and conventional steel wedge were used in this paper. The GFRP bars are encased with epoxy at the anchor zone and the wedge system was used in the pull-out test. The results showed a loading capacity of 47.6 kN which is 69% of the bar ultimate capacity. Additionally, nylon wedge was made with the same dimensions of the steel wedge and tested for GFRP bars without epoxy layer. The nylon wedge showed a loading capacity of 19.7 kN which is only 28.5% of the ultimate bar capacity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anchorage" title="anchorage">anchorage</a>, <a href="https://publications.waset.org/abstracts/search?q=concrete" title=" concrete"> concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=epoxy" title=" epoxy"> epoxy</a>, <a href="https://publications.waset.org/abstracts/search?q=frp" title=" frp"> frp</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-stressed" title=" pre-stressed"> pre-stressed</a> </p> <a href="https://publications.waset.org/abstracts/31388/performance-of-modified-wedge-anchorage-system-for-pre-stressed-frp-bars" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31388.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">301</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> Assessing Secondary School Curricula in the light of Developing Quality of Life Standards of High School Students</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Othman%20Ali%20Alghtani">Othman Ali Alghtani</a>, <a href="https://publications.waset.org/abstracts/search?q=Yahya%20Abdul-Ekhalq%20Ali"> Yahya Abdul-Ekhalq Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdullah%20Abdul-Ekhalq%20Ali"> Abdullah Abdul-Ekhalq Ali</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Al%20Sadiq%20Abdul%20Majeed"> Ahmed Al Sadiq Abdul Majeed</a>, <a href="https://publications.waset.org/abstracts/search?q=Najwa%20Attian%20Al-Mohammadi"> Najwa Attian Al-Mohammadi</a>, <a href="https://publications.waset.org/abstracts/search?q=Obead%20Mozel%20Alharbi"> Obead Mozel Alharbi</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabri%20Mohamed%20Ismail"> Sabri Mohamed Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=Omar%20Ibrahim%20Asiri"> Omar Ibrahim Asiri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study assessed the curricula of secondary schools given requirements to enhance the quality of life of students. The components of quality of life were described to build a list of standards and indicators. A questionnaire assessing the dimensions of mental (cognitive and emotional), physical, digital, and social health, and environmental awareness was prepared. A descriptive-analytical approach was used on a sample of 258 teachers and educational supervisors in Tabuk. The results indicated shortcomings in the secondary school curricula regarding developing standards and indicators of components of quality of life. Results also indicated that secondary school curricula incorporated few practices to improve student’s quality of life. No significant differences were found regarding the core subject, job, gender, and years of experience. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=assessing%20curricula" title="assessing curricula">assessing curricula</a>, <a href="https://publications.waset.org/abstracts/search?q=teacher%20practices" title=" teacher practices"> teacher practices</a>, <a href="https://publications.waset.org/abstracts/search?q=quality%20of%20life" title=" quality of life"> quality of life</a>, <a href="https://publications.waset.org/abstracts/search?q=teaching%20practices" title=" teaching practices"> teaching practices</a> </p> <a href="https://publications.waset.org/abstracts/160284/assessing-secondary-school-curricula-in-the-light-of-developing-quality-of-life-standards-of-high-school-students" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/160284.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">274</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">80</span> Fast High Voltage Solid State Switch Using Insulated Gate Bipolar Transistor for Discharge-Pumped Lasers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nur%20Syarafina%20Binti%20Othman">Nur Syarafina Binti Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Tsubasa%20Jindo"> Tsubasa Jindo</a>, <a href="https://publications.waset.org/abstracts/search?q=Makato%20Yamada"> Makato Yamada</a>, <a href="https://publications.waset.org/abstracts/search?q=Miho%20Tsuyama"> Miho Tsuyama</a>, <a href="https://publications.waset.org/abstracts/search?q=Hitoshi%20Nakano"> Hitoshi Nakano</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A novel method to produce a fast high voltage solid states switch using Insulated Gate Bipolar Transistors (IGBTs) is presented for discharge-pumped gas lasers. The IGBTs are connected in series to achieve a high voltage rating. An avalanche transistor is used as the gate driver. The fast pulse generated by the avalanche transistor quickly charges the large input capacitance of the IGBT, resulting in a switch out of a fast high-voltage pulse. The switching characteristic of fast-high voltage solid state switch has been estimated in the multi-stage series-connected IGBT with the applied voltage of several tens of kV. Electrical circuit diagram and the mythology of fast-high voltage solid state switch as well as experimental results obtained are presented. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high%20voltage" title="high voltage">high voltage</a>, <a href="https://publications.waset.org/abstracts/search?q=IGBT" title=" IGBT"> IGBT</a>, <a href="https://publications.waset.org/abstracts/search?q=solid%20state%20switch" title=" solid state switch"> solid state switch</a>, <a href="https://publications.waset.org/abstracts/search?q=bipolar%20transistor" title=" bipolar transistor"> bipolar transistor</a> </p> <a href="https://publications.waset.org/abstracts/13067/fast-high-voltage-solid-state-switch-using-insulated-gate-bipolar-transistor-for-discharge-pumped-lasers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13067.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">555</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> Comparative Catalytic Activity of Some Ferrites for Phenol Degradation in Aqueous Solutions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bayan%20Alqassem">Bayan Alqassem</a>, <a href="https://publications.waset.org/abstracts/search?q=Israa%20A.%20Othman"> Israa A. Othman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Abu%20Haija"> Mohammed Abu Haija</a>, <a href="https://publications.waset.org/abstracts/search?q=Fawzi%20%20Banat"> Fawzi Banat</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The treatment of wastewater from highly toxic pollutants is one of the most challenging issues for humanity. In this study, the advanced oxidation process (AOP) was employed to study the catalytic degradation of phenol using different ferrite catalysts which are CoFe₂O₄, CrFe₂O₄, CuFe₂O₄, MgFe₂O₄, MnFe₂O₄, NiFe₂O₄ and ZnFe₂O₄. The ferrite catalysts were prepared via sol-gel and co-precipitation methods. Different ferrite composites were also prepared either by varying the metal ratios or incorporating chemically reduced graphene oxide in the ferrite cluster. The effect of phosphoric acid treatment on the copper ferrite activity. All of the prepared catalysts were characterized using infrared spectroscopy (IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). The ferrites catalytic activities were tested towards phenol degradation using high performance liquid chromatography (HPLC). The experimental results showed that ferrites prepared through sol-gel route were more active than those of the co-precipitation method towards phenol degradation. In both cases, CuFe₂O₄ exhibited the highest degradation of phenol compared to the other ferrites. The photocatalytic properties of the ferrites were also investigated. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ferrite%20catalyst" title="ferrite catalyst">ferrite catalyst</a>, <a href="https://publications.waset.org/abstracts/search?q=ferrite%20composites" title=" ferrite composites"> ferrite composites</a>, <a href="https://publications.waset.org/abstracts/search?q=phenol%20degradation" title=" phenol degradation"> phenol degradation</a>, <a href="https://publications.waset.org/abstracts/search?q=photocatalysis" title=" photocatalysis"> photocatalysis</a> </p> <a href="https://publications.waset.org/abstracts/89207/comparative-catalytic-activity-of-some-ferrites-for-phenol-degradation-in-aqueous-solutions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89207.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">226</span> </span> </div> </div> <ul class="pagination"> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Nazaliza%20Othman&page=1" rel="prev">&lsaquo;</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Nazaliza%20Othman&page=1">1</a></li> <li class="page-item active"><span class="page-link">2</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Nazaliza%20Othman&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Nazaliza%20Othman&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Nazaliza%20Othman&page=5">5</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Nazaliza%20Othman&page=3" 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