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Vakaloudis</title> <meta name="description" content="Search results for: Alex Vakaloudis"> <meta name="keywords" content="Alex Vakaloudis"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Alex Vakaloudis"> <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> 123</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Alex Vakaloudis</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> Adherence Induced Formwork Removal in Small-Scale Pull-Off Tensile Tests</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nicolas%20Spitz">Nicolas Spitz</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicolas%20Coniglio"> Nicolas Coniglio</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20El%20Mansori"> Mohamed El Mansori</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Montagne"> Alex Montagne</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabeur%20Mezghani"> Sabeur Mezghani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Nowadays buildings' construction is performed by pouring concrete into molds referred to as formworks that are usually prefabricated metallic modules. Defects such as stripping may possibly form during the removal of the formwork if the interfacial bonding between the concrete and the formwork is high. A new pull-off tensile test was developed in our laboratory to simulate small-scale formwork removals. The concrete-to-formwork adherence force was measured on bare and coated formworks with different surface signatures. The used concrete was a mixture largely used on building sites and contains CEM I Portland cement and calcareous filler. The concrete surface appearance and the type of failures at the concrete-formwork interface have been investigated. The originality of this near-to-surface test was to compare the laboratory-measured adherence forces to the on-site observations. Based upon the small-scale laboratory test results, functional formwork specifications with low adherence to concrete was proposed in terms of superficial signature characteristics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=concrete-formwork%20adherence" title="concrete-formwork adherence">concrete-formwork adherence</a>, <a href="https://publications.waset.org/abstracts/search?q=interfacial%20bonding" title=" interfacial bonding"> interfacial bonding</a>, <a href="https://publications.waset.org/abstracts/search?q=skin%20formwork%20functionality" title=" skin formwork functionality"> skin formwork functionality</a>, <a href="https://publications.waset.org/abstracts/search?q=small-scale%20pull-off%20tensile%20test" title=" small-scale pull-off tensile test"> small-scale pull-off tensile test</a> </p> <a href="https://publications.waset.org/abstracts/81360/adherence-induced-formwork-removal-in-small-scale-pull-off-tensile-tests" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81360.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">246</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> A Linear Programming Approach to Assist Roster Construction Under a Salary Cap</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alex%20Contarino">Alex Contarino</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Professional sports leagues often have a “free agency” period, during which teams may sign players with expiring contracts.To promote parity, many leagues operate under a salary cap that limits the amount teams can spend on player’s salaries in a given year. Similarly, in fantasy sports leagues, salary cap drafts are a popular method for selecting players. In order to sign a free agent in either setting, teams must bid against one another to buy the player’s services while ensuring the sum of their player’s salaries is below the salary cap. This paper models the bidding process for a free agent as a constrained optimization problem that can be solved using linear programming. The objective is to determine the largest bid that a team should offer the player subject to the constraint that the value of signing the player must exceed the value of using the salary cap elsewhere. Iteratively solving this optimization problem for each available free agent provides teams with an effective framework for maximizing the talent on their rosters. The utility of this approach is demonstrated for team sport roster construction and fantasy sport drafts, using recent data sets from both settings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=linear%20programming" title="linear programming">linear programming</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=roster%20management" title=" roster management"> roster management</a>, <a href="https://publications.waset.org/abstracts/search?q=salary%20cap" title=" salary cap"> salary cap</a> </p> <a href="https://publications.waset.org/abstracts/155702/a-linear-programming-approach-to-assist-roster-construction-under-a-salary-cap" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/155702.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">111</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">91</span> Application and Assessment of Artificial Neural Networks for Biodiesel Iodine Value Prediction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Raquel%20M.%20De%20sousa">Raquel M. De sousa</a>, <a href="https://publications.waset.org/abstracts/search?q=Sofiane%20Labidi"> Sofiane Labidi</a>, <a href="https://publications.waset.org/abstracts/search?q=Allan%20Kardec%20D.%20Barros"> Allan Kardec D. Barros</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20O.%20Barradas%20Filho"> Alex O. Barradas Filho</a>, <a href="https://publications.waset.org/abstracts/search?q=Aldalea%20L.%20B.%20Marques"> Aldalea L. B. Marques</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Several parameters are established in order to measure biodiesel quality. One of them is the iodine value, which is an important parameter that measures the total unsaturation within a mixture of fatty acids. Limitation of unsaturated fatty acids is necessary since warming of a higher quantity of these ones ends in either formation of deposits inside the motor or damage of lubricant. Determination of iodine value by official procedure tends to be very laborious, with high costs and toxicity of the reagents, this study uses an artificial neural network (ANN) in order to predict the iodine value property as an alternative to these problems. The methodology of development of networks used 13 esters of fatty acids in the input with convergence algorithms of backpropagation type were optimized in order to get an architecture of prediction of iodine value. This study allowed us to demonstrate the neural networks’ ability to learn the correlation between biodiesel quality properties, in this case iodine value, and the molecular structures that make it up. The model developed in the study reached a correlation coefficient (R) of 0.99 for both network validation and network simulation, with Levenberg-Maquardt algorithm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=artificial%20neural%20networks" title="artificial neural networks">artificial neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=biodiesel" title=" biodiesel"> biodiesel</a>, <a href="https://publications.waset.org/abstracts/search?q=iodine%20value" title=" iodine value"> iodine value</a>, <a href="https://publications.waset.org/abstracts/search?q=prediction" title=" prediction"> prediction</a> </p> <a href="https://publications.waset.org/abstracts/25392/application-and-assessment-of-artificial-neural-networks-for-biodiesel-iodine-value-prediction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25392.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">606</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> A Process to Support Multidisciplinary Teams to Design Serious Games</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Naza%20Djafarova">Naza Djafarova</a>, <a href="https://publications.waset.org/abstracts/search?q=Tony%20Bates"> Tony Bates</a>, <a href="https://publications.waset.org/abstracts/search?q=Margaret%20Verkuyl"> Margaret Verkuyl</a>, <a href="https://publications.waset.org/abstracts/search?q=Leonora%20Zefi"> Leonora Zefi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozgur%20Turetken"> Ozgur Turetken</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Ferworn"> Alex Ferworn</a>, <a href="https://publications.waset.org/abstracts/search?q=Mastrilli%20Paula"> Mastrilli Paula</a>, <a href="https://publications.waset.org/abstracts/search?q=Daria%20Romaniuk"> Daria Romaniuk</a>, <a href="https://publications.waset.org/abstracts/search?q=Kosha%20Bramesfeld"> Kosha Bramesfeld</a>, <a href="https://publications.waset.org/abstracts/search?q=Anastasia%20Dimitriadou"> Anastasia Dimitriadou</a>, <a href="https://publications.waset.org/abstracts/search?q=Cheryl%20To"> Cheryl To</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Designing serious games for education is a challenging and resource-intensive effort. If a well-designed process that balances pedagogical principles with game mechanics is in place, it can help to simplify the design process of serious games and increase efficiency. Multidisciplinary teams involved in designing serious games can benefit tremendously from such a process in their endeavours to develop and implement these games at undergraduate and graduate levels. This paper presentation will outline research results on identified gaps within existing processes and frameworks and present an adapted process that emerged from the research. The research methodology was based on a survey, semi-structured interviews and workshops for testing the adapted process for game design. Based on the findings, the authors propose a simple process for the pre-production stage of serious game design that may help guide multidisciplinary teams in their work. This process was used to facilitate team brainstorming, and is currently being tested to assess if multidisciplinary teams find value in using it in their process of designing serious games. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=serious%20game-design" title="serious game-design">serious game-design</a>, <a href="https://publications.waset.org/abstracts/search?q=multidisciplinary%20team" title=" multidisciplinary team"> multidisciplinary team</a>, <a href="https://publications.waset.org/abstracts/search?q=game%20design%20framework" title=" game design framework"> game design framework</a>, <a href="https://publications.waset.org/abstracts/search?q=learning%20games" title=" learning games"> learning games</a>, <a href="https://publications.waset.org/abstracts/search?q=multidisciplinary%20game%20design%20process" title=" multidisciplinary game design process"> multidisciplinary game design process</a> </p> <a href="https://publications.waset.org/abstracts/89674/a-process-to-support-multidisciplinary-teams-to-design-serious-games" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/89674.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">429</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> Migration-Related Challenges during the Covid-19 Pandemic in South Africa. A Case of Alexandra Township</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Edwin%20Mwasakidzeni%20Mutyenyoka">Edwin Mwasakidzeni Mutyenyoka</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Without ignoring migration-related challenges in transit zones and places of origin, this inquiry focuses on arrived international immigrants’ exacerbated vulnerability during crises. The aim is to underline longstanding inequalities and demonstrate that crises merely amplify and exacerbate challenges that low-income migrants already face during ‘non-crises’ periods. Social protection, as an agenda for reducing vulnerability, poverty, and risk for low-income households, with regard to basic consumption and services, has been foregrounded in the post-apartheid development discourse in South Africa. Evidently, however, the state, through the South African Social Security Agency (SASSA), systemically excludes the majority of non-citizens from state-sponsored social assistance programs - often leaving them heavily dependent on sporadic non-state options and erosive coping mechanisms. In this paper, migration itself should not only be understood as a social protection strategy against poverty and risk but also as a source of vulnerability that often requires social protection. For quasi-ethnographic, it use one migrant destination, Alex Park Township, as a “contact zone” and space of negotiation during the pandemic. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=south-south%20migration" title="south-south migration">south-south migration</a>, <a href="https://publications.waset.org/abstracts/search?q=crises" title=" crises"> crises</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20protection" title=" social protection"> social protection</a>, <a href="https://publications.waset.org/abstracts/search?q=Covid-19%20pandemic" title=" Covid-19 pandemic"> Covid-19 pandemic</a> </p> <a href="https://publications.waset.org/abstracts/154364/migration-related-challenges-during-the-covid-19-pandemic-in-south-africa-a-case-of-alexandra-township" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154364.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">91</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> Meta-Learning for Hierarchical Classification and Applications in Bioinformatics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fabio%20Fabris">Fabio Fabris</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20A.%20Freitas"> Alex A. Freitas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Hierarchical classification is a special type of classification task where the class labels are organised into a hierarchy, with more generic class labels being ancestors of more specific ones. Meta-learning for classification-algorithm recommendation consists of recommending to the user a classification algorithm, from a pool of candidate algorithms, for a dataset, based on the past performance of the candidate algorithms in other datasets. Meta-learning is normally used in conventional, non-hierarchical classification. By contrast, this paper proposes a meta-learning approach for more challenging task of hierarchical classification, and evaluates it in a large number of bioinformatics datasets. Hierarchical classification is especially relevant for bioinformatics problems, as protein and gene functions tend to be organised into a hierarchy of class labels. This work proposes meta-learning approach for recommending the best hierarchical classification algorithm to a hierarchical classification dataset. This work’s contributions are: 1) proposing an algorithm for splitting hierarchical datasets into new datasets to increase the number of meta-instances, 2) proposing meta-features for hierarchical classification, and 3) interpreting decision-tree meta-models for hierarchical classification algorithm recommendation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=algorithm%20recommendation" title="algorithm recommendation">algorithm recommendation</a>, <a href="https://publications.waset.org/abstracts/search?q=meta-learning" title=" meta-learning"> meta-learning</a>, <a href="https://publications.waset.org/abstracts/search?q=bioinformatics" title=" bioinformatics"> bioinformatics</a>, <a href="https://publications.waset.org/abstracts/search?q=hierarchical%20classification" title=" hierarchical classification"> hierarchical classification</a> </p> <a href="https://publications.waset.org/abstracts/81005/meta-learning-for-hierarchical-classification-and-applications-in-bioinformatics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81005.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">314</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> Teaching Continuities in the Great Books Tradition and Contemporary Popular Culture</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alex%20Kizuk">Alex Kizuk</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper studies the trope or meme of the Siren in terms of what long-standing cultural continuities can be found in college classrooms today. Those who have raised children may remember reading from Hans Christian Anderson's 'The Little Mermaid' (1836), not to mention regaling them with colorful Disneyesque versions when they were younger. Though Anderson tempered the darker first ending of the story to give the little mermaid more agency in her salvation—a prognostic developed in Disney adaptations—nonetheless, the tale pivots on an image of a 'heavenly realm' that the mermaid may eventually come to know or comprehend as a beloved woman on dry land. Only after 300 years, however, may she hope to see that 'which lives forever' and 'rises through thin air, up to the shining stars. Just as [sea-people] rise through the water to see the lands on earth.' What students today can see in this example is a trope of the agonistic soul in a hard-won disembarkation at a harbour of knowledge--where the seeker after truth may come to know through persistence (300 years)—all that is good and true concerning human life. This paper discusses several such examples from the Great Books and popular culture to suggest that teaching in the world of the 21st century could do worse than accede to some such perennial seeking. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=the%20Great%20Books" title="the Great Books">the Great Books</a>, <a href="https://publications.waset.org/abstracts/search?q=tradition" title=" tradition"> tradition</a>, <a href="https://publications.waset.org/abstracts/search?q=popular%20culture" title=" popular culture"> popular culture</a>, <a href="https://publications.waset.org/abstracts/search?q=21st%20century%20directions%20in%20teaching" title=" 21st century directions in teaching"> 21st century directions in teaching</a> </p> <a href="https://publications.waset.org/abstracts/117373/teaching-continuities-in-the-great-books-tradition-and-contemporary-popular-culture" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/117373.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">157</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> In Search of Zero Beta Assets: Evidence from the Sukuk Market</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Andrea%20Paltrinieri">Andrea Paltrinieri</a>, <a href="https://publications.waset.org/abstracts/search?q=Alberto%20Dreassi"> Alberto Dreassi</a>, <a href="https://publications.waset.org/abstracts/search?q=Stefano%20Miani"> Stefano Miani</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Sclip"> Alex Sclip </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The financial crises caused a collapse in prices of most asset classes, raising the attention on alternative investments such as Sukuk, a smaller, fast growing but often misunderstood market. We study diversification benefits of Sukuk, their correlation with other asset classes and the effects of their inclusion in investment portfolios of institutional and retail investors, through a comprehensive comparison of their risk/return profiles during and after the financial crisis. We find a beneficial performance adjusted for the specific volatility together with a lower correlation especially during the financial crisis. The distribution of Sukuk returns is positively skewed and leptokurtic, with a risk/return profile similarly to high yield bonds. Overall, our results suggest that Sukuk present diversification opportunities, a significant volatility-adjusted performance and lower correlations especially during the financial crisis. Our findings are relevant for a number of institutional investors. Long term investors, such as life insurers would benefit from Sukuk’s protective features during financial crisis yet keeping return and growth opportunities, whereas banks would gain due to their role of placers, advisors, market makers or underwriters. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sukuk" title="sukuk">sukuk</a>, <a href="https://publications.waset.org/abstracts/search?q=zero%20beta%20asset" title=" zero beta asset"> zero beta asset</a>, <a href="https://publications.waset.org/abstracts/search?q=asset%20allocation" title=" asset allocation"> asset allocation</a>, <a href="https://publications.waset.org/abstracts/search?q=sukuk%20market" title=" sukuk market"> sukuk market</a> </p> <a href="https://publications.waset.org/abstracts/21247/in-search-of-zero-beta-assets-evidence-from-the-sukuk-market" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21247.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">477</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> Identification of the Interior Noise Sources of Rail Vehicles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hyo-In%20Koh">Hyo-In Koh</a>, <a href="https://publications.waset.org/abstracts/search?q=Anders%20Nordborg"> Anders Nordborg</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Sievi"> Alex Sievi</a>, <a href="https://publications.waset.org/abstracts/search?q=Chun-Kwon%20Park"> Chun-Kwon Park</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The noise source for the interior room of the high speed train is constituted by the rolling contact between the wheel and the rail, aerodynamic noise and structure-borne sound generated through the vibrations of bogie, connection points to the carbody. Air-borne sound is radiated through the panels and structures into the interior room of the trains. The high-speed lines are constructed with slab track systems and many tunnels. The interior noise level and the frequency characteristics vary according to types of the track structure and the infrastructure. In this paper the main sound sources and the transfer paths are studied to find out the contribution characteristics of the sources to the interior noise of a high-speed rail vehicle. For the identification of the acoustic power of each parts of the rolling noise sources a calculation model of wheel/rail noise is developed and used. For the analysis of the transmission of the sources to the interior noise noise and vibration are measured during the operation of the vehicle. According to operation speeds, the mainly contributed sources and the paths could be analyzed. Results of the calculations on the source generation and the results of the measurement with a high-speed train are shown and discussed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=rail%20vehicle" title="rail vehicle">rail vehicle</a>, <a href="https://publications.waset.org/abstracts/search?q=high-speed" title=" high-speed"> high-speed</a>, <a href="https://publications.waset.org/abstracts/search?q=interior%20noise" title=" interior noise"> interior noise</a>, <a href="https://publications.waset.org/abstracts/search?q=noise%20source" title=" noise source "> noise source </a> </p> <a href="https://publications.waset.org/abstracts/33534/identification-of-the-interior-noise-sources-of-rail-vehicles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33534.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">400</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> Estimation of Aquifer Parameters Using Vertical Electrical Sounding in Ochudo City, Abakaliki Urban Nigeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Moses.%20O.%20Eyankware">Moses. O. Eyankware</a>, <a href="https://publications.waset.org/abstracts/search?q=Benard%20I.%20Odoh"> Benard I. Odoh</a>, <a href="https://publications.waset.org/abstracts/search?q=Omoleomo%20O.%20Omo-Irabor"> Omoleomo O. Omo-Irabor</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20O.%20I.%20Selemo"> Alex O. I. Selemo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Knowledge of hydraulic conductivity and transmissivity is essential for the determination of natural water flow through an aquifer. These parameters are commonly estimated from the analysis of electrical conductivity, soil properties and fluid flow data. In order to achieve a faster and cost effective analysis of aquifer parameters in Ochudo City in Abakaliki, this study relied on non-invasive geophysical methods. As part of this approach, Vertical Electrical Sounding (VES) was conducted at 20 sites in the study area for the identification of the vertical variation in subsurface lithology and for the characterization of the groundwater system. The area variously consists of between five to seven geoelectric layers of different thicknesses. Depth to aquifer ranges from 9.94 m-134.0 m while the thickness of the identified aquifer varies between 8.43 m and 44.31 m. Based on the electrical conductivity values of water samples collected from two boreholes and two hand-dug wells within the study area, the hydraulic conductivity was determined to range from 0.10 to 0.433 m/day. The estimated thickness of the aquifer and calculated hydraulic conductivity were used to derive the aquifer transmissivity. The results indicate that this parameter ranges from 1.58-7.56 m²/day with a formation factor of between 0.31-3.6. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asu%20river%20group" title="Asu river group">Asu river group</a>, <a href="https://publications.waset.org/abstracts/search?q=transmissivity" title=" transmissivity"> transmissivity</a>, <a href="https://publications.waset.org/abstracts/search?q=hydraulic%20conductivity" title=" hydraulic conductivity"> hydraulic conductivity</a>, <a href="https://publications.waset.org/abstracts/search?q=abakaliki" title=" abakaliki"> abakaliki</a>, <a href="https://publications.waset.org/abstracts/search?q=vertical%20electrical%20sounding%20%28VES%29" title=" vertical electrical sounding (VES)"> vertical electrical sounding (VES)</a> </p> <a href="https://publications.waset.org/abstracts/35836/estimation-of-aquifer-parameters-using-vertical-electrical-sounding-in-ochudo-city-abakaliki-urban-nigeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35836.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">395</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> Capnography for Detection of Return of Spontaneous Circulation Pseudo-Pea</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yiyuan%20David%20Hu">Yiyuan David Hu</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Lindqwister"> Alex Lindqwister</a>, <a href="https://publications.waset.org/abstracts/search?q=Samuel%20B.%20Klein"> Samuel B. Klein</a>, <a href="https://publications.waset.org/abstracts/search?q=Karen%20Moodie"> Karen Moodie</a>, <a href="https://publications.waset.org/abstracts/search?q=Norman%20A.%20%20Paradis"> Norman A. Paradis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Pseudo-Pulseless Electrical Activity (p-PEA) is a lifeless form of profound cardiac shock characterized by measurable cardiac mechanical activity without clinically detectable pulses. Patients in pseudo-PEA carry different prognoses than those in true PEA and may require different therapies. End-tidal carbon dioxide (ET-CO2) is a reliable indicator of the return of spontaneous circulation (ROSC) in ventricular fibrillation and true-PEA but has not been studied p-PEA. Hypothesis: ET-CO2 can be used as an independent indicator of ROSC in p-PEA resuscitation. Methods: 30kg female swine (N = 14) under intravenous anesthesia were instrumented with aortic and right atrial micromanometer pressure. ECG and ET-CO2 were measured continuously. p-PEA was induced by ventilation with 6% oxygen in 94% nitrogen and was defined as a systolic Ao less than 40 mmHg. The statistical relationships between ET-CO2 and ROSC are reported. Results: ET-CO2 during resuscitation strongly correlated with ROSC (Figure 1). Mean ET-CO2 during p-PEA was 28.4 ± 8.4, while mean ET-CO2 in ROSC for 100% O2 cohort was 42.2 ± 12.6 (p < 0.0001), mean ET-CO2 in ROSC for 100% O2 + CPR was 33.0 ± 15.4 (p < 0.0001). Analysis of slope was limited to one minute of resuscitation data to capture local linearity; assessment began 10 seconds after resuscitation started to allow the ventilator to mix 100% O2. Pigs who would recover with 100% O2 had a slope of 0.023 ± 0.001, oxygen + CPR had a slope of 0.018 ± 0.002, and oxygen + CPR + epinephrine had a slope of 0.0050 ± 0.0009. Conclusions: During resuscitation from porcine hypoxic p-PEA, a rise in ET-CO2 is indicative of ROSC. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ET-CO2" title="ET-CO2">ET-CO2</a>, <a href="https://publications.waset.org/abstracts/search?q=resuscitation" title=" resuscitation"> resuscitation</a>, <a href="https://publications.waset.org/abstracts/search?q=capnography" title=" capnography"> capnography</a>, <a href="https://publications.waset.org/abstracts/search?q=pseudo-PEA" title=" pseudo-PEA"> pseudo-PEA</a> </p> <a href="https://publications.waset.org/abstracts/134316/capnography-for-detection-of-return-of-spontaneous-circulation-pseudo-pea" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134316.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">187</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> Device Modelling and Analysis of Eco-friendly Inverted Solar Cell Structure Using Valency Ordered Inorganic Double Perovskite Material</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sindhu%20S%20Nair">Sindhu S Nair</a>, <a href="https://publications.waset.org/abstracts/search?q=Atul%20Thakur"> Atul Thakur</a>, <a href="https://publications.waset.org/abstracts/search?q=Preeti%20Thakur"> Preeti Thakur</a>, <a href="https://publications.waset.org/abstracts/search?q=Trukhanov%20Alex"> Trukhanov Alex</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Perovskite-based absorbing materials that are organic, inorganic, or hybrid have gained interest as an appealing candidate for the development of solar cell devices. Lead-based perovskites are among the most promising materials, but their application is plagued with toxicity and stability concerns. Most of the perovskite solar cell consists of conventional (n-i-p) structure with organic or inorganic charge transport materials. The commercial application of such device is limited due to higher J-V hysteresis and the need for high temperature during fabrication. This numerical analysis primarily directs to investigate the performance of various inorganic lead-free valency ordered double perovskite absorber materials and to develop an inverted perovskite solar cell device structure. Simulation efforts using SCAPS-1D was carried out with various organic and inorganic charge transport materials with absorber layer materials, and their performance has been evaluated for various factors of thickness, absorber thickness, absorber defect density, and interface defect density to achieve the optimized structure. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=perovskite%20materials" title="perovskite materials">perovskite materials</a>, <a href="https://publications.waset.org/abstracts/search?q=solar%20cell" title=" solar cell"> solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=inverted%20solar%20cell" title=" inverted solar cell"> inverted solar cell</a>, <a href="https://publications.waset.org/abstracts/search?q=inorganic%20perovskite%20solar%20cell%20materials" title=" inorganic perovskite solar cell materials"> inorganic perovskite solar cell materials</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20efficiency" title=" cell efficiency"> cell efficiency</a> </p> <a href="https://publications.waset.org/abstracts/166962/device-modelling-and-analysis-of-eco-friendly-inverted-solar-cell-structure-using-valency-ordered-inorganic-double-perovskite-material" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166962.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">83</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> Performance Analysis of PAPR Reduction in OFDM Systems based on Partial Transmit Sequence (PTS) Technique</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alcardo%20Alex%20Barakabitze">Alcardo Alex Barakabitze</a>, <a href="https://publications.waset.org/abstracts/search?q=Tan%20Xiaoheng"> Tan Xiaoheng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Orthogonal Frequency Division Multiplexing (OFDM) is a special case of Multi-Carrier Modulation (MCM) technique which transmits a stream of data over a number of lower data rate subcarriers. OFDM splits the total transmission bandwidth into a number of orthogonal and non-overlapping subcarriers and transmit the collection of bits called symbols in parallel using these subcarriers. This paper explores the Peak to Average Power Reduction (PAPR) using the Partial Transmit Sequence technique. We provide the distribution analysis and the basics of OFDM signals and then show how the PAPR increases as the number of subcarriers increases. We provide the performance analysis of CCDF and PAPR expressed in decibels through MATLAB simulations. The simulation results show that, in PTS technique, the performance of PAPR reduction in OFDM systems improves significantly as the number of sub-blocks increases. However, by keeping the same number of sub-blocks variation, oversampling factor and the number of OFDM blocks’ iteration for generating the CCDF, the OFDM systems with 128 subcarriers have an improved performance in PAPR reduction compared to OFDM systems with 256, 512 or >512 subcarriers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=OFDM" title="OFDM">OFDM</a>, <a href="https://publications.waset.org/abstracts/search?q=peak%20to%20average%20power%20reduction%20%28PAPR%29" title=" peak to average power reduction (PAPR)"> peak to average power reduction (PAPR)</a>, <a href="https://publications.waset.org/abstracts/search?q=bit%20error%20rate%20%28BER%29" title=" bit error rate (BER)"> bit error rate (BER)</a>, <a href="https://publications.waset.org/abstracts/search?q=subcarriers" title=" subcarriers"> subcarriers</a>, <a href="https://publications.waset.org/abstracts/search?q=wireless%20communications" title=" wireless communications"> wireless communications</a> </p> <a href="https://publications.waset.org/abstracts/28576/performance-analysis-of-papr-reduction-in-ofdm-systems-based-on-partial-transmit-sequence-pts-technique" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28576.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">514</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> The Importance of Generating Electricity through Wind Farms in the Brazilian Electricity Matrix, from 2013 to 2020</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alex%20Sidarta%20Guglielmoni">Alex Sidarta Guglielmoni</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since the 1970s, sustainable development has become increasingly present on the international agenda. The present work has as general objective to analyze, discuss and bring answers to the following question, what is the importance of the generation of electric energy through the wind power plants in the Brazilian electricity matrix between 2013 and 2019? To answer this question, we analyzed the generation of renewable energy from wind farms and the consumption of electricity in Brazil during the period of January 2013 until December 2020. The specific objectives of this research are: to analyze the public data, to identify the total wind generation, to identify the total wind capacity generation, to identify the percentage participation of the generation and generation capacity of wind energy in the Brazilian electricity matrix. In order to develop this research, it was necessary a bibliographic search, collection of secondary data, tabulation of generation data, and electricity capacity by a comparative analysis between wind power and the Brazilian electricity matrix. As a result, it was possible to observe how important Brazil is for global sustainable development and how much this country can grow with this, in view of its capacity and potential for generating wind power since this percentage has grown in past few years. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wind%20power" title="wind power">wind power</a>, <a href="https://publications.waset.org/abstracts/search?q=Brazilian%20market" title=" Brazilian market"> Brazilian market</a>, <a href="https://publications.waset.org/abstracts/search?q=electricity%20matrix" title=" electricity matrix"> electricity matrix</a>, <a href="https://publications.waset.org/abstracts/search?q=generation%20capacity" title=" generation capacity"> generation capacity</a> </p> <a href="https://publications.waset.org/abstracts/128915/the-importance-of-generating-electricity-through-wind-farms-in-the-brazilian-electricity-matrix-from-2013-to-2020" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128915.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">126</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">79</span> Bioremediation as a Treatment of Aromatic Hydrocarbons in Wastewater</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hen%20Friman">Hen Friman</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Schechter"> Alex Schechter</a>, <a href="https://publications.waset.org/abstracts/search?q=Yeshayahu%20Nitzan"> Yeshayahu Nitzan</a>, <a href="https://publications.waset.org/abstracts/search?q=Rivka%20Cahan"> Rivka Cahan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The treatment of aromatic hydrocarbons in wastewater resulting from oil spills and chemical manufactories is becoming a key concern in many modern countries. Benzene, ethylbenzene, toluene and xylene (BETX) contaminate groundwater as well as soil. These compounds have an acute effect on human health and are known to be carcinogenic. Conventional removal of these toxic materials involves separation and burning of the wastes, however, the cost of chemical treatment is very high and energy consuming. Bioremediation methods for removal of toxic organic compounds constitute an attractive alternative to the conventional chemical or physical techniques. Bioremediation methods use microorganisms to reduce the concentration and toxicity of various chemical pollutants Toluene is biodegradable both aerobically and anaerobically, it can be growth inhibitory to microorganisms at elevated concentrations, even to those species that can use it as a substrate. In this research culture of Pseudomonas putida was grown in bath bio-reactor (BBR) with toluene 100 mg/l as a single carbon source under constant voltage of 125 mV, 250 mV and 500 mV. The culture grown in BBR reached to 0.8 OD660nm while the control culture that grown without external voltage reached only to 0.6 OD660nm. The residual toluene concentration after 147 h, in the BBR operated under external voltage (125 mV) was 22 % on average, while in the control BBR it was 81 % on average. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioremediation" title="bioremediation">bioremediation</a>, <a href="https://publications.waset.org/abstracts/search?q=aromatic%20hydrocarbons" title=" aromatic hydrocarbons"> aromatic hydrocarbons</a>, <a href="https://publications.waset.org/abstracts/search?q=BETX" title=" BETX"> BETX</a>, <a href="https://publications.waset.org/abstracts/search?q=toluene" title=" toluene"> toluene</a>, <a href="https://publications.waset.org/abstracts/search?q=pseudomonas%20putida" title=" pseudomonas putida"> pseudomonas putida</a> </p> <a href="https://publications.waset.org/abstracts/38419/bioremediation-as-a-treatment-of-aromatic-hydrocarbons-in-wastewater" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38419.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">316</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> Experimental Characterization of the Thermal Behavior of a Sawdust Mortar</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20Taouche-Kheloui">F. Taouche-Kheloui</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Fedaoui-Akmoussi"> O. Fedaoui-Akmoussi</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Ait%20tahar"> K. Ait tahar</a>, <a href="https://publications.waset.org/abstracts/search?q=Li.%20Alex"> Li. Alex</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Currently, the reduction of energy consumption, through the use of abundant and recyclable natural materials, for better thermal insulation represents an important area of research. To this end, the use of bio-sourced materials has been identified as one of the green sectors with a very high economic development potential for the future. Because of its role in reducing the consumption of fossil-based raw materials, it contributes significantly to the storage of atmospheric carbon, limits greenhouse gas emissions and creates new economic opportunities. This study constitutes a contribution to the elaboration and the experimental characterization of the thermal behavior of a sawdust-reduced mortar matrix. We have taken into account the influence of the size of the grain fibers of sawdust, hence the use of three different ranges and also different percentage in the different confections. The intended practical application consists of producing a light weight compound at a lower cost to ensure a better thermal and acoustic behavior compared to that existing in the field, in addition to the desired resistances. Improving energy performance, while reducing greenhouse gas emissions from the building sector, is amongst the objectives to be achieved. The results are very encouraging and highlight the value of the proposed design of organic-source mortar panels which have specific mechanical properties acceptable for their use, low densities, lower cost of manufacture and labor, and above all a positive impact on the environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mortar" title="mortar">mortar</a>, <a href="https://publications.waset.org/abstracts/search?q=sawdust%20waste" title=" sawdust waste"> sawdust waste</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal" title=" thermal"> thermal</a>, <a href="https://publications.waset.org/abstracts/search?q=experimental" title=" experimental"> experimental</a>, <a href="https://publications.waset.org/abstracts/search?q=analysis" title=" analysis"> analysis</a> </p> <a href="https://publications.waset.org/abstracts/105693/experimental-characterization-of-the-thermal-behavior-of-a-sawdust-mortar" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105693.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">84</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">77</span> Carbon-Nanodots Modified Glassy Carbon Electrode for the Electroanalysis of Selenium in Water</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Azeez%20O.%20Idris">Azeez O. Idris</a>, <a href="https://publications.waset.org/abstracts/search?q=Benjamin%20O.%20Orimolade"> Benjamin O. Orimolade</a>, <a href="https://publications.waset.org/abstracts/search?q=Potlako%20J.%20Mafa"> Potlako J. Mafa</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20T.%20Kuvarega"> Alex T. Kuvarega</a>, <a href="https://publications.waset.org/abstracts/search?q=Usisipho%20Feleni"> Usisipho Feleni</a>, <a href="https://publications.waset.org/abstracts/search?q=Bhekie%20B.%20Mamba"> Bhekie B. Mamba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We report a simple and cheaper method for the electrochemical detection of Se(IV) using carbon nanodots (CNDTs) prepared from oat. The carbon nanodots were synthesised by green and facile approach and characterised using scanning electron microscopy, high-resolution transmission electron microscopy, Fourier transform infrared spectroscopy, X-ray diffraction, and Raman spectroscopy. The CNDT was used to fabricate an electrochemical sensor for the quantification of Se(IV) in water. The modification of glassy carbon electrode (GCE) with carbon nanodots led to an increase in the electroactive surface area of the electrode, which enhances the redox current peak of [Fe(CN)₆]₃₋/₄‒ in comparison to the bare GCE. Using the square wave voltammetry, the detection limit and quantification limit of 0.05 and 0.167 ppb were obtained under the optimised parameters using deposition potential of -200 mV, 0.1 M HNO₃ electrolyte, electrodeposition time of 60 s, and pH 1. The results further revealed that the GCE-CNDT was not susceptible to many interfering cations except Cu(II) and Pb(II), and Fe(II). The sensor fabrication involves a one-step electrode modification and was used to detect Se(IV) in a real water sample, and the result obtained is in agreement with the inductively coupled plasma technique. Overall, the electrode offers a cheap, fast, and sensitive way of detecting selenium in environmental matrices. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20nanodots" title="carbon nanodots">carbon nanodots</a>, <a href="https://publications.waset.org/abstracts/search?q=square%20wave%20voltammetry" title=" square wave voltammetry"> square wave voltammetry</a>, <a href="https://publications.waset.org/abstracts/search?q=nanomaterials" title=" nanomaterials"> nanomaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=selenium" title=" selenium"> selenium</a>, <a href="https://publications.waset.org/abstracts/search?q=sensor" title=" sensor"> sensor</a> </p> <a href="https://publications.waset.org/abstracts/150663/carbon-nanodots-modified-glassy-carbon-electrode-for-the-electroanalysis-of-selenium-in-water" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/150663.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">91</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> Elite Rain: A Solution to the Problem of Destructive Processes in Iran and Other Countries</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khaled%20Ali%20Soltan">Khaled Ali Soltan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Iran can be considered a triangle that is affected by 3 forces: the government, the elite, and the people. Over the last 100 years, these three forces have been at odds with each other. This lack of coordination and sometimes antagonism among these three forces has led to lawlessness in Iran (both the government and the people have entered the cycle of lawlessness) and the spread of destructive processes in the country and the destruction of resources, both natural and human resources. The direct and negative impact of this issue on people's lives as well as the environment highlights the importance of this article. This article descriptively deals with the issue and suggests solutions and examines possible problems and obstacles. There seems to be a way to establish a connection’ closeness and coordination among these three forces and put them on the path of development. ELITE RAIN is a scientific-popular process that can create coordination and cooperation between these forces, prevent destructive processes in the country and put it on the path of sustainable development and a better life. This solution is a more advanced model of brainstorming technique introduced by Alex Osborn in 1953. Given that people have tried different types of protests to improve the status quo, such as the change of government in 1979 which led to the establishment of the theocracy, participating in elections that resulted in more frustration and corruption due to the lack of real parties, and sporadic street protests that resulted in nothing more than repression, it seems that this solution can be successful. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corruption" title="corruption">corruption</a>, <a href="https://publications.waset.org/abstracts/search?q=destruction%20of%20resources" title=" destruction of resources"> destruction of resources</a>, <a href="https://publications.waset.org/abstracts/search?q=elite%20rain" title=" elite rain"> elite rain</a>, <a href="https://publications.waset.org/abstracts/search?q=Iran" title=" Iran"> Iran</a>, <a href="https://publications.waset.org/abstracts/search?q=legal%20complaints" title=" legal complaints"> legal complaints</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title=" sustainable development"> sustainable development</a>, <a href="https://publications.waset.org/abstracts/search?q=the%20elite" title=" the elite"> the elite</a> </p> <a href="https://publications.waset.org/abstracts/148929/elite-rain-a-solution-to-the-problem-of-destructive-processes-in-iran-and-other-countries" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/148929.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">72</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> A Theoretical Framework for Conceptualizing Integration of Environmental Sustainability into Supplier Selection</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tonny%20Ograh">Tonny Ograh</a>, <a href="https://publications.waset.org/abstracts/search?q=Joshua%20Ayarkwa"> Joshua Ayarkwa</a>, <a href="https://publications.waset.org/abstracts/search?q=Dickson%20Osei-Asibey"> Dickson Osei-Asibey</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Acheampong"> Alex Acheampong</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Amoah"> Peter Amoah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Theories are used to improve the conceptualization of research ideas. These theories enhance valuable elucidations that help us to grasp the meaning of research findings. Nevertheless, the use of theories to promote studies in green supplier selection in procurement decisions has attracted little attention. With the emergence of sustainable procurement, public procurement practitioners in Ghana are yet to achieve relevant knowledge on green supplier selections due to insufficient knowledge and inadequate appropriate frameworks. The flagrancy of the consequences of public procurers’ failure to integrate environmental considerations into supplier selection explains the adoption of a multi-theory approach for comprehension of the dynamics of green integration into supplier selection. In this paper, the practicality of three theories for improving the understanding of the influential factors enhancing the integration of environmental sustainability into supplier selection was reviewed. The three theories are Resource-Based Theory, Human Capital Theory and Absorptive Capacity Theory. This review uncovered knowledge management, top management commitment, and environmental management capabilities as important elements needed for the integration of environmental sustainability into supplier selection in public procurement. The theoretical review yielded a framework that conceptualizes knowledge and capabilities of practitioners relevant to the incorporation of environmental sustainability into supplier selection in public procurement. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=environmental" title="environmental">environmental</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainability" title=" sustainability"> sustainability</a>, <a href="https://publications.waset.org/abstracts/search?q=supplier%20selection" title=" supplier selection"> supplier selection</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20procurement" title=" environmental procurement"> environmental procurement</a>, <a href="https://publications.waset.org/abstracts/search?q=sustainable%20procurement" title=" sustainable procurement"> sustainable procurement</a> </p> <a href="https://publications.waset.org/abstracts/141903/a-theoretical-framework-for-conceptualizing-integration-of-environmental-sustainability-into-supplier-selection" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141903.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">179</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> Socioeconomic Status and Mortality in Older People with Angina: A Population-Based Cohort Study in China</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Weiju%20Zhou">Weiju Zhou</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Hopkins"> Alex Hopkins</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruoling%20Chen"> Ruoling Chen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: China has increased the gap in income between richer and poorer over the past 40 years, and the number of deaths from people with angina has been rising. It is unclear whether socioeconomic status (SES) is associated with increased mortality in older people with angina. Methods: Data from a cohort study of 2,380 participants aged ≥ 65 years, who were randomly recruited from 5-province urban communities were examined in China. The cohort members were interviewed to record socio-demographic and risk factors and document doctor-diagnosed angina at baseline and were followed them up in 3-10 years, including monitoring vital status. Multivariate Cox regression models were employed to examine all-cause mortality in relation to low SES. Results: The cohort follow-up identified 373 deaths occurred; 41 deaths in 208 angina patients. Compared to participants without angina (n=2,172), patients with angina had increased mortality (multivariate adjusted hazard ratio (HR) was 1.41, 95% CI 1.01-1.97). Within angina patients, the risk of mortality increased with low satisfactory income (2.51, 1.08-5.85) and having financial problem (4.00, 1.07-15.00), but significantly with levels of education and occupation. In non-angina participants, none of these four SES indicators were associated with mortality. There was a significant interaction effect between angina and low satisfactory income on mortality. Conclusions: In China, having low income and financial problem increase mortality in older people with angina. Strategies to improve economic circumstances in older people could help reduce inequality in angina survival. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=angina" title="angina">angina</a>, <a href="https://publications.waset.org/abstracts/search?q=mortality" title=" mortality"> mortality</a>, <a href="https://publications.waset.org/abstracts/search?q=older%20people" title=" older people"> older people</a>, <a href="https://publications.waset.org/abstracts/search?q=socio-economic%20status" title=" socio-economic status"> socio-economic status</a> </p> <a href="https://publications.waset.org/abstracts/115542/socioeconomic-status-and-mortality-in-older-people-with-angina-a-population-based-cohort-study-in-china" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/115542.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">118</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> Uncertainty in Near-Term Global Surface Warming Linked to Pacific Trade Wind Variability</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Hadi%20Bordbar">M. Hadi Bordbar</a>, <a href="https://publications.waset.org/abstracts/search?q=Matthew%20England"> Matthew England</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Sen%20Gupta"> Alex Sen Gupta</a>, <a href="https://publications.waset.org/abstracts/search?q=Agus%20Santoso"> Agus Santoso</a>, <a href="https://publications.waset.org/abstracts/search?q=Andrea%20Taschetto"> Andrea Taschetto</a>, <a href="https://publications.waset.org/abstracts/search?q=Thomas%20Martin"> Thomas Martin</a>, <a href="https://publications.waset.org/abstracts/search?q=Wonsun%20Park"> Wonsun Park</a>, <a href="https://publications.waset.org/abstracts/search?q=Mojib%20Latif"> Mojib Latif</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Climate models generally simulate long-term reductions in the Pacific Walker Circulation with increasing atmospheric greenhouse gases. However, over two recent decades (1992-2011) there was a strong intensification of the Pacific Trade Winds that is linked with a slowdown in global surface warming. Using large ensembles of multiple climate models forced by increasing atmospheric greenhouse gas concentrations and starting from different ocean and/or atmospheric initial conditions, we reveal very diverse 20-year trends in the tropical Pacific climate associated with a considerable uncertainty in the globally averaged surface air temperature (SAT) in each model ensemble. This result suggests low confidence in our ability to accurately predict SAT trends over 20-year timescale only from external forcing. We show, however, that the uncertainty can be reduced when the initial oceanic state is adequately known and well represented in the model. Our analyses suggest that internal variability in the Pacific trade winds can mask the anthropogenic signal over a 20-year time frame, and drive transitions between periods of accelerated global warming and temporary slowdown periods. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=trade%20winds" title="trade winds">trade winds</a>, <a href="https://publications.waset.org/abstracts/search?q=walker%20circulation" title=" walker circulation"> walker circulation</a>, <a href="https://publications.waset.org/abstracts/search?q=hiatus%20in%20the%20global%20surface%20warming" title=" hiatus in the global surface warming"> hiatus in the global surface warming</a>, <a href="https://publications.waset.org/abstracts/search?q=internal%20climate%20variability" title=" internal climate variability"> internal climate variability</a> </p> <a href="https://publications.waset.org/abstracts/91567/uncertainty-in-near-term-global-surface-warming-linked-to-pacific-trade-wind-variability" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91567.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">268</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> Improving Access to Palliative Care for Heart Failure Patients in England Using a Health Systems Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alex%20Hughes">Alex Hughes</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Patients with advanced heart failure develop specific palliative care needs due to the progressive symptom burden and unpredictable disease trajectory. NICE guidance advises that palliative care should be provided to patients with both cancer and non-cancer conditions as and when required. However, there is some way to go before this guidance is consistently and effectively implemented nationwide in conditions such as heart failure. The Ambitions for Palliative and End of Life Care: A national framework for local action in England provides a set of foundations and ambitions which outline a vision for what high-quality palliative and end-of-life care look like in England. This poster aims to critically consider how to improve access to palliative care for heart failure patients in England by analysing the foundations taken from this framework to generate specific recommendations using Soft Systems Methodology (SSM). The eight foundations analysed are: ‘Personalised care planning’, ‘Shared records’, ‘Evidence and information’, ‘Involving, supporting and caring for those important to the dying Person’, ‘Education and training’, ‘24/7 access’, ‘Co-design’ and ‘Leadership.’ A number of specific recommendations have been generated which highlight a need to close the evidence-policy gap and implement policy with sufficient evidence. These recommendations, alongside the creation of an evidence-based national strategy for palliative care and heart failure, should improve access to palliative care for heart failure patients in England. Once implemented, it will be necessary to evaluate the effect of these proposals to understand if access to palliative care for heart failure patients actually improves. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=access" title="access">access</a>, <a href="https://publications.waset.org/abstracts/search?q=health%20systems" title=" health systems"> health systems</a>, <a href="https://publications.waset.org/abstracts/search?q=heart%20failure" title=" heart failure"> heart failure</a>, <a href="https://publications.waset.org/abstracts/search?q=palliative%20care" title=" palliative care"> palliative care</a> </p> <a href="https://publications.waset.org/abstracts/146017/improving-access-to-palliative-care-for-heart-failure-patients-in-england-using-a-health-systems-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/146017.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">128</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> Capnography in Hypoxic Pseudo-Pea May Correlate to the Amount of Required Intervention for Resuscitation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yiyuan%20David%20%20Hu">Yiyuan David Hu</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Lindqwister"> Alex Lindqwister</a>, <a href="https://publications.waset.org/abstracts/search?q=Samuel%20B.%20%20Klein"> Samuel B. Klein</a>, <a href="https://publications.waset.org/abstracts/search?q=Karen%20Moodie"> Karen Moodie</a>, <a href="https://publications.waset.org/abstracts/search?q=Norman%20A.%20%20Paradis"> Norman A. Paradis</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Pseudo-Pulseless Electrical Activity (p-PEA) is a lifeless form of profound cardiac shock characterized by measurable cardiac mechanical activity without clinically detectable pulses. Patients in pseudo-PEA carry different prognoses than those in true PEA and may require different therapies. End-tidal carbon dioxide (ET-CO2) has been studied in ventricular fibrillation and true PEA but in p-PEA. We utilized an hypoxic porcine model to characterize the performance of ET-CO2 in resuscitation from p-PEA. Hypothesis: Capnography correlates to the number of required interventions for resuscitation from p-PEA. Methods: Female swine (N = 14) under intravenous anesthesia were instrumented with aortic and right atrial micromanometer pressure. ECG and ET-CO2 were measured continuously. p-PEA was induced by ventilation with 6% oxygen in 94% nitrogen and was defined as a systolic aortic (Ao) pressure less than 40 mmHg. Pigs were grouped based on the interventions required to achieve ROSC: 100%O2, 100%O2 + CPR, 100%O2 + CPR + epinephrine. Results: End tidal CO2 reliably predicted O2 therapy vs CPR-based interventions needed for resuscitation (Figure 1). Pigs who would recover with 100%O2 only had a mean ET-CO2 slope of 0.039 ± 0.013 [ R2 = 0.68], those requiring oxygen + CPR had a slope of -0.15 ± 0.016 [R2 = 0.95], and those requiring oxygen + CPR + epinephrine had a slope of -0.12 ± 0.031 [R2 = 0.79]. Conclusions: In a porcine model of hypoxic p-PEA, measured ET-CO2 appears to be strongly correlated with the required interventions needed for ROSC. If confirmed clinically, these results indicate that ET-CO2 may be useful in guiding therapy in patients suffering p-PEA cardiac arrest. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pseudo-PEA" title="pseudo-PEA">pseudo-PEA</a>, <a href="https://publications.waset.org/abstracts/search?q=resuscitation" title=" resuscitation"> resuscitation</a>, <a href="https://publications.waset.org/abstracts/search?q=capnography" title=" capnography"> capnography</a>, <a href="https://publications.waset.org/abstracts/search?q=hypoxic%20pseudo-PEA" title=" hypoxic pseudo-PEA"> hypoxic pseudo-PEA</a> </p> <a href="https://publications.waset.org/abstracts/134315/capnography-in-hypoxic-pseudo-pea-may-correlate-to-the-amount-of-required-intervention-for-resuscitation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134315.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">194</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> An Innovative High Energy Density Power Pack for Portable and Off-Grid Power Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Idit%20Avrahami">Idit Avrahami</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Schechter"> Alex Schechter</a>, <a href="https://publications.waset.org/abstracts/search?q=Lev%20Zakhvatkin"> Lev Zakhvatkin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research focuses on developing a compact and light Hydrogen Generator (HG), coupled with fuel cells (FC) to provide a High-Energy-Density Power-Pack (HEDPP) solution, which is 10 times Li-Ion batteries. The HEDPP is designed for portable & off-grid power applications such as Drones, UAVs, stationary off-grid power sources, unmanned marine vehicles, and more. Hydrogen gas provided by this device is delivered in the safest way as a chemical powder at room temperature and ambient pressure is activated only when the power is on. Hydrogen generation is based on a stabilized chemical reaction of Sodium Borohydride (SBH) and water. The proposed solution enables a ‘No Storage’ Hydrogen-based Power Pack. Hydrogen is produced and consumed on-the-spot, during operation; therefore, there’s no need for high-pressure hydrogen tanks, which are large, heavy, and unsafe. In addition to its high energy density, ease of use, and safety, the presented power pack has a significant advantage of versatility and deployment in numerous applications and scales. This patented HG was demonstrated using several prototypes in our lab and was proved to be feasible and highly efficient for several applications. For example, in applications where water is available (such as marine vehicles, water and sewage infrastructure, and stationary applications), the Energy Density of the suggested power pack may reach 2700-3000 Wh/kg, which is again more than 10 times higher than conventional lithium-ion batteries. In other applications (e.g., UAV or small vehicles) the energy density may exceed 1000 Wh/kg. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hydrogen%20energy" title="hydrogen energy">hydrogen energy</a>, <a href="https://publications.waset.org/abstracts/search?q=sodium%20borohydride" title=" sodium borohydride"> sodium borohydride</a>, <a href="https://publications.waset.org/abstracts/search?q=fixed-wing%20UAV" title=" fixed-wing UAV"> fixed-wing UAV</a>, <a href="https://publications.waset.org/abstracts/search?q=energy%20pack" title=" energy pack"> energy pack</a> </p> <a href="https://publications.waset.org/abstracts/158504/an-innovative-high-energy-density-power-pack-for-portable-and-off-grid-power-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/158504.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">83</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> Propeller Performance Modeling through a Computational Fluid Dynamics Analysis Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Maxime%20Alex%20Junior%20Kuitche">Maxime Alex Junior Kuitche</a>, <a href="https://publications.waset.org/abstracts/search?q=Ruxandra%20Mihaela%20Botez"> Ruxandra Mihaela Botez</a>, <a href="https://publications.waset.org/abstracts/search?q=Jean-Chirstophe%20Maunand"> Jean-Chirstophe Maunand</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The evolution of aircraft is closely linked to the study and improvement of propulsion systems. Determining the propulsion performance is a real challenge in aircraft modeling and design. In addition to theoretical methodologies, experimental procedures are used to obtain a good estimation of the propulsion performances. For piston-propeller propulsion, the propeller needs several experimental tests which could be extremely demanding in terms of time and money. This paper presents a new procedure to estimate the performance of a propeller from a numerical approach using computational fluid dynamic analysis. The propeller was initially scanned, and then, its 3D model was represented using CATIA. A structured meshing and Shear Stress Transition k-ω turbulence model were applied to describe accurately the flow pattern around the propeller. Thus, the Partial Differential Equations were solved using ANSYS FLUENT software. The method was applied on the UAS-S45’s propeller designed and manufactured by Hydra Technologies in Mexico. An extensive investigation was performed for several flight conditions in terms of altitudes and airspeeds with the aim to determine thrust coefficients, power coefficients and efficiency of the propeller. The Computational Fluid Dynamics results were compared with experimental data acquired from wind tunnel tests performed at the LARCASE Price-Paidoussis wind tunnel. The results of this comparison have demonstrated that our approach was highly accurate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CFD%20analysis" title="CFD analysis">CFD analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=propeller%20performance" title=" propeller performance"> propeller performance</a>, <a href="https://publications.waset.org/abstracts/search?q=unmanned%20aerial%20system%20propeller" title=" unmanned aerial system propeller"> unmanned aerial system propeller</a>, <a href="https://publications.waset.org/abstracts/search?q=UAS-S45" title=" UAS-S45"> UAS-S45</a> </p> <a href="https://publications.waset.org/abstracts/87348/propeller-performance-modeling-through-a-computational-fluid-dynamics-analysis-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87348.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">353</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> Assessment of Environmental Impacts and Determination of Sustainability Level of BOOG Granite Mine Using a Mathematical Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gholamhassan%20Kakha">Gholamhassan Kakha</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohsen%20Jami"> Mohsen Jami</a>, <a href="https://publications.waset.org/abstracts/search?q=Daniel%20Alex%20Merino%20Natorce"> Daniel Alex Merino Natorce</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sustainable development refers to the creation of a balance between the development and the environment too; it consists of three key principles namely environment, society and economy. These three parameters are related to each other and the imbalance occurs in each will lead to the disparity of the other parts. Mining is one of the most important tools of the economic growth and social welfare in many countries. Meanwhile, assessment of the environmental impacts has directed to the attention of planners toward the natural environment of the areas surrounded by mines and allowing for monitoring and controlling of the current situation by the designers. In this look upon, a semi-quantitative model using a matrix method is presented for assessing the environmental impacts in the BOOG Granite Mine located in Sistan and Balouchestan, one of the provinces of Iran for determining the effective factors and environmental components. For accomplishing this purpose, the initial data are collected by the experts at the next stage; the effect of the factors affects each environmental component is determined by specifying the qualitative viewpoints. Based on the results, factors including air quality, ecology, human health and safety along with the environmental damages resulted from mining activities in that area. Finally, the results gained from the assessment of the environmental impact are used to evaluate the sustainability by using Philips mathematical model. The results show that the sustainability of this area is weak, so environmental preventive measures are recommended to reduce the environmental damages to its components. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sustainable%20development" title="sustainable development">sustainable development</a>, <a href="https://publications.waset.org/abstracts/search?q=environmental%20impacts%27%20assessment" title=" environmental impacts' assessment"> environmental impacts' assessment</a>, <a href="https://publications.waset.org/abstracts/search?q=BOOG%20granite" title=" BOOG granite"> BOOG granite</a>, <a href="https://publications.waset.org/abstracts/search?q=Philips%20mathematical%20model" title=" Philips mathematical model"> Philips mathematical model</a> </p> <a href="https://publications.waset.org/abstracts/92792/assessment-of-environmental-impacts-and-determination-of-sustainability-level-of-boog-granite-mine-using-a-mathematical-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/92792.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">197</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> Story of Alex: Sociology of Gender</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Karen%20V.%20Lee">Karen V. Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The significance of this study involves autoethnographic research about a music teacher learning about the socialization of gender issues in teaching. Mentorship involving intervention helps with the consequences influencing a transgendered music teacher. Basic storytelling methodology involves the qualitative method of research as a theoretical framework where the author provides a storied reflection about political issues surrounding teachers and the sociology of gender. Sub-themes involve counseling, adult education to ensure students and teachers receive social, emotional, physical, spiritual, and educational resources that evoke visceral, emotional responses from the audience. Major findings share how stories are helpful resources for others who struggle with the socialization of gender. It is hoped the research dramatizes an episodic yet incomplete story that highlights the circumstances surrounding the protagonist having his sex reassignment surgery during his undergraduate education degree. In conclusion, the research is a reflexive storied framework that embraces a positive outlook about a transgendered teacher during his masectomy. The sensory experience seeks verisimilitude by evoking lifelike and believable feelings from others. Thus, the scholarly importance of the sociology of gender and society provides transformative aspects that contributes to social change. Overall, the surgery surrounding the story about transgendered issues are not uncommon in society. Thus, continued education supports the moral mission to help teachers overcome and understand issues of gender that can socially impacts their professional lives as teachers. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sociology%20of%20gender" title="sociology of gender">sociology of gender</a>, <a href="https://publications.waset.org/abstracts/search?q=transgender" title=" transgender"> transgender</a>, <a href="https://publications.waset.org/abstracts/search?q=music%20teachers" title=" music teachers"> music teachers</a>, <a href="https://publications.waset.org/abstracts/search?q=story" title=" story"> story</a>, <a href="https://publications.waset.org/abstracts/search?q=autoethnography%20as%20research" title=" autoethnography as research"> autoethnography as research</a>, <a href="https://publications.waset.org/abstracts/search?q=ideology" title=" ideology"> ideology</a> </p> <a href="https://publications.waset.org/abstracts/46206/story-of-alex-sociology-of-gender" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/46206.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">304</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> A Picture is worth a Billion Bits: Real-Time Image Reconstruction from Dense Binary Pixels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tal%20Remez">Tal Remez</a>, <a href="https://publications.waset.org/abstracts/search?q=Or%20Litany"> Or Litany</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Bronstein"> Alex Bronstein</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The pursuit of smaller pixel sizes at ever increasing resolution in digital image sensors is mainly driven by the stringent price and form-factor requirements of sensors and optics in the cellular phone market. Recently, Eric Fossum proposed a novel concept of an image sensor with dense sub-diffraction limit one-bit pixels (jots), which can be considered a digital emulation of silver halide photographic film. This idea has been recently embodied as the EPFL Gigavision camera. A major bottleneck in the design of such sensors is the image reconstruction process, producing a continuous high dynamic range image from oversampled binary measurements. The extreme quantization of the Poisson statistics is incompatible with the assumptions of most standard image processing and enhancement frameworks. The recently proposed maximum-likelihood (ML) approach addresses this difficulty, but suffers from image artifacts and has impractically high computational complexity. In this work, we study a variant of a sensor with binary threshold pixels and propose a reconstruction algorithm combining an ML data fitting term with a sparse synthesis prior. We also show an efficient hardware-friendly real-time approximation of this inverse operator. Promising results are shown on synthetic data as well as on HDR data emulated using multiple exposures of a regular CMOS sensor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=binary%20pixels" title="binary pixels">binary pixels</a>, <a href="https://publications.waset.org/abstracts/search?q=maximum%20likelihood" title=" maximum likelihood"> maximum likelihood</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=sparse%20coding" title=" sparse coding"> sparse coding</a> </p> <a href="https://publications.waset.org/abstracts/38705/a-picture-is-worth-a-billion-bits-real-time-image-reconstruction-from-dense-binary-pixels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38705.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">201</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">65</span> The Role of Cognitive Impairment in Asthma Self-Management Behaviors and Outcomes in Older Adults</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Gali%20Moritz">Gali Moritz</a>, <a href="https://publications.waset.org/abstracts/search?q=Jacqueline%20H.%20Becker"> Jacqueline H. Becker</a>, <a href="https://publications.waset.org/abstracts/search?q=Jyoti%20V.%20Ankam"> Jyoti V. Ankam</a>, <a href="https://publications.waset.org/abstracts/search?q=Kimberly%20Arcoleo"> Kimberly Arcoleo</a>, <a href="https://publications.waset.org/abstracts/search?q=Matthew%20Wysocki"> Matthew Wysocki</a>, <a href="https://publications.waset.org/abstracts/search?q=Roee%20Holtzer"> Roee Holtzer</a>, <a href="https://publications.waset.org/abstracts/search?q=Juan%20Wisnivesky"> Juan Wisnivesky</a>, <a href="https://publications.waset.org/abstracts/search?q=Paula%20J.%20Busse"> Paula J. Busse</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20D.%20Federman"> Alex D. Federman</a>, <a href="https://publications.waset.org/abstracts/search?q=Sunit%20P.%20Jariwala"> Sunit P. Jariwala</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20M.%20Feldman"> Jonathan M. Feldman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: Cognitive impairment (CI), whose incidence is greater among ethnic/racial minorities, is a significant barrier to asthma self-management (SM) behaviors and outcomes in older adults. The aim of this study was to examine the relationships between CI, assessed using the Montreal Cognitive Assessment (MoCA), and asthma SM behaviors and outcomes in a sample of predominantly Black and Hispanic participants. Additionally, we evaluated whether using two different MoCA cutoff scores influenced the association between CI and study outcomes. Methods: Baseline cross-sectional data were extracted from a longitudinal study of older adults with asthma (N=165) age≥ 60 years and used for analysis. Cognition was assessed using the MoCA. Asthma control, asthma-related quality of life (QOL), inhaled corticosteroid (ICS) dosing, and ICS adherence were assessed using self-report. The inhaler technique was observed and rated. Results: Using established MoCA cutoff scores of 23 and 26 yielded 45% and 74% CI rates, respectively. CI, defined using the 23 cutoff score, was significantly associated with worse asthma control (p=.04) and worse ICS adherence (p=.01). With a cutoff score of 26, only asthma-related QOL was significantly associated with CI (p=.03). Race/ethnicity and education did not moderate the relationships between CI and asthma SM behaviors and outcomes. Conclusions: CI in older adults with asthma is associated with important clinical outcomes, but this relationship is influenced by the cutoff score used to define CI. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cognition" title="cognition">cognition</a>, <a href="https://publications.waset.org/abstracts/search?q=respiratory" title=" respiratory"> respiratory</a>, <a href="https://publications.waset.org/abstracts/search?q=elderly" title=" elderly"> elderly</a>, <a href="https://publications.waset.org/abstracts/search?q=testing" title=" testing"> testing</a>, <a href="https://publications.waset.org/abstracts/search?q=adherence" title=" adherence"> adherence</a>, <a href="https://publications.waset.org/abstracts/search?q=validity" title=" validity"> validity</a> </p> <a href="https://publications.waset.org/abstracts/163963/the-role-of-cognitive-impairment-in-asthma-self-management-behaviors-and-outcomes-in-older-adults" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163963.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">80</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> The Impact of Equine-Assisted Therapy on Occupational Engagement for Children with Intellectual and/or Developmental Disabilities: From the Perspectives of the Children and Their Caregivers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Morgan%20Dempsey">Morgan Dempsey</a>, <a href="https://publications.waset.org/abstracts/search?q=Sam%20Lewis"> Sam Lewis</a>, <a href="https://publications.waset.org/abstracts/search?q=Maggie%20Pierce"> Maggie Pierce</a>, <a href="https://publications.waset.org/abstracts/search?q=Alex%20Goodman"> Alex Goodman</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research investigates the impact of equine-assisted therapy programs on occupational engagement for children with intellectual and developmental disabilities. There is a general lack of evidence for equine-based services for this population, so this research aims to decrease gaps in the current literature. To gain comprehensive insight, data will be collected from both the child and their caregiver. This study takes a qualitative approach utilizing online surveys and in-person guided interviews. The participants are individuals ages 4-17 with a diagnosed intellectual or developmental disability who are currently participating in a PATH int. certified equine-assisted therapy program. Also, caregivers of individuals who meet this criterion are included. This study decreases gaps in the literature by providing comprehensive data regarding the impacts of these services on occupational engagement. The addressed domains are physical, behavioral, emotional, and social functioning, as well as overall activity engagement and impacts in everyday life. With a better understanding of how equine-assisted therapy affects relevant outcomes for children with disabilities, an increased number of occupational therapists can implement these uniquely effective services while adhering to standards of evidence-based practice. Ultimately, this research strives to contribute to generalizable data in occupational therapy by supporting the implementation of equine-assisted services for children with intellectual and/or developmental disabilities and their caregivers/families. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=occupational%20therapy" title="occupational therapy">occupational therapy</a>, <a href="https://publications.waset.org/abstracts/search?q=pediatric" title=" pediatric"> pediatric</a>, <a href="https://publications.waset.org/abstracts/search?q=rehabilitation" title=" rehabilitation"> rehabilitation</a>, <a href="https://publications.waset.org/abstracts/search?q=hippotherapy" title=" hippotherapy"> hippotherapy</a> </p> <a href="https://publications.waset.org/abstracts/187259/the-impact-of-equine-assisted-therapy-on-occupational-engagement-for-children-with-intellectual-andor-developmental-disabilities-from-the-perspectives-of-the-children-and-their-caregivers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/187259.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">36</span> </span> </div> </div> <ul class="pagination"> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Alex%20Vakaloudis&page=1" rel="prev">&lsaquo;</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Alex%20Vakaloudis&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" 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