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Carvalho da Silva</title> <meta name="description" content="Search results for: Zenaide Carvalho da Silva"> <meta name="keywords" content="Zenaide Carvalho da Silva"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button 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action="https://publications.waset.org/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="Zenaide Carvalho da Silva"> <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> 127</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Zenaide Carvalho da Silva</h1> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">127</span> Learning Object Interface Adapted to the Learner's Learning Style</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Zenaide%20Carvalho%20da%20Silva">Zenaide Carvalho da Silva</a>, <a href="https://publications.waset.org/search?q=Leandro%20Rodrigues%20Ferreira"> Leandro Rodrigues Ferreira</a>, <a href="https://publications.waset.org/search?q=Andrey%20Ricardo%20Pimentel"> Andrey Ricardo Pimentel</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Learning styles (LS) refer to the ways and forms that the student prefers to learn in the teaching and learning process. Each student has their own way of receiving and processing information throughout the learning process. Therefore, knowing their LS is important to better understand their individual learning preferences, and also, understand why the use of some teaching methods and techniques give better results with some students, while others it does not. We believe that knowledge of these styles enables the possibility of making propositions for teaching; thus, reorganizing teaching methods and techniques in order to allow learning that is adapted to the individual needs of the student. Adapting learning would be possible through the creation of online educational resources adapted to the style of the student. In this context, this article presents the structure of a learning object interface adaptation based on the LS. The structure created should enable the creation of the adapted learning object according to the student's LS and contributes to the increase of student’s motivation in the use of a learning object as an educational resource.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Adaptation" title="Adaptation">Adaptation</a>, <a href="https://publications.waset.org/search?q=interface" title=" interface"> interface</a>, <a href="https://publications.waset.org/search?q=learning%20object" title=" learning object"> learning object</a>, <a href="https://publications.waset.org/search?q=learning%20style." title=" learning style. "> learning style. </a> </p> <a href="https://publications.waset.org/10007979/learning-object-interface-adapted-to-the-learners-learning-style" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10007979/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10007979/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10007979/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10007979/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10007979/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10007979/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10007979/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10007979/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10007979/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10007979/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10007979.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">986</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">126</span> Learning Objects Content Presentation Adaptation Model Considering Students' Learning Styles</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Zenaide%20Carvalho%20da%20Silva">Zenaide Carvalho da Silva</a>, <a href="https://publications.waset.org/search?q=Andrey%20Ricardo%20Pimentel"> Andrey Ricardo Pimentel</a>, <a href="https://publications.waset.org/search?q=Leandro%20Rodrigues%20Ferreira"> Leandro Rodrigues Ferreira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Learning styles (LSs) correspond to the individual preferences of a person regarding the modes and forms in which he/she prefers to learn throughout the teaching/learning process. The content presentation of learning objects (LOs) using knowledge about the students’ LSs offers them digital educational resources tailored to their individual learning preferences. In this context, the most relevant characteristics of the LSs along with the most appropriate forms of LOs' content presentation were mapped and associated. Such was performed in order to define the composition of an adaptive model of LO's content presentation considering the LSs, which was called Adaptation of Content Presentation of Learning Objects Considering Learning Styles (ACPLOLS). LO prototypes were created with interfaces that were adapted to students' LSs. These prototypes were based on a model created for validation of the approaches that were used, which were established through experiments with the students. The results of subjective measures of students' emotional responses demonstrated that the ACPLOLS has reached the desired results in relation to the adequacy of the LOs interface, in accordance with the Felder-Silverman LSs Model.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Adaptation" title="Adaptation">Adaptation</a>, <a href="https://publications.waset.org/search?q=interface" title=" interface"> interface</a>, <a href="https://publications.waset.org/search?q=learning%20styles" title=" learning styles"> learning styles</a>, <a href="https://publications.waset.org/search?q=learning%20objects" title=" learning objects"> learning objects</a>, <a href="https://publications.waset.org/search?q=students." title=" students."> students.</a> </p> <a href="https://publications.waset.org/10012193/learning-objects-content-presentation-adaptation-model-considering-students-learning-styles" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10012193/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10012193/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10012193/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10012193/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10012193/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10012193/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10012193/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10012193/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10012193/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10012193/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10012193.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">536</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">125</span> Improved Neutron Leakage Treatment on Nodal Expansion Method for PWR Reactors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Antonio%20Carlos%20Marques%20Alvim">Antonio Carlos Marques Alvim</a>, <a href="https://publications.waset.org/search?q=Fernando%20Carvalho%20da%20Silva"> Fernando Carvalho da Silva</a>, <a href="https://publications.waset.org/search?q=Aquilino%20Senra%20Martinez"> Aquilino Senra Martinez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> For a quick and accurate calculation of spatial neutron distribution in nuclear power reactors 3D nodal codes are usually used aiming at solving the neutron diffusion equation for a given reactor core geometry and material composition. These codes use a second order polynomial to represent the transverse leakage term. In this work, a nodal method based on the well known nodal expansion method (NEM), developed at COPPE, making use of this polynomial expansion was modified to treat the transverse leakage term for the external surfaces of peripheral reflector nodes. The proposed method was implemented into a computational system which, besides solving the diffusion equation, also solves the burnup equations governing the gradual changes in material compositions of the core due to fuel depletion. Results confirm the effectiveness of this modified treatment of peripheral nodes for practical purposes in PWR reactors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Transverse%20leakage" title="Transverse leakage">Transverse leakage</a>, <a href="https://publications.waset.org/search?q=nodal%20expansion%20method" title=" nodal expansion method"> nodal expansion method</a>, <a href="https://publications.waset.org/search?q=power%0Adensity" title=" power density"> power density</a>, <a href="https://publications.waset.org/search?q=PWR%20reactors" title=" PWR reactors"> PWR reactors</a> </p> <a href="https://publications.waset.org/12424/improved-neutron-leakage-treatment-on-nodal-expansion-method-for-pwr-reactors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/12424/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/12424/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/12424/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/12424/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/12424/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/12424/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/12424/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/12424/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/12424/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/12424/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/12424.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">2040</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">124</span> Social Marketing and Nonprofit Organizations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Marconi%20Freitas-da-Costa">Marconi Freitas-da-Costa</a>, <a href="https://publications.waset.org/search?q=Watsan%20C.%20Silva"> Watsan C. Silva</a>, <a href="https://publications.waset.org/search?q=Tha%C3%ADs%20S.%20Paula"> Thaís S. Paula</a>, <a href="https://publications.waset.org/search?q=D%C3%A9bora%20O.%20Silva"> Débora O. Silva</a>, <a href="https://publications.waset.org/search?q=Maria%20G.%20Vieira"> Maria G. Vieira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Today the social marketing was constituted as a tool of significant value in what he refers to the promotion of changes of behaviors, attitudes end practices. With the objective of analyzing the benefits that the social marketing can bring for the organizations that use it the research was of the exploratory and descriptive. In the present study the comparative method was used, through a qualitative approach, to analyze the activities developed by three institutions: the Recovery Center Rosa de Saron, the House of Recovery for addicts and Teen Challenge Institute Children's Cancer of the Wasteland (ICIA), kindred of pointing out the benefits of the social marketing in organizations that don-t seek the profit. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Social%20marketing" title="Social marketing">Social marketing</a>, <a href="https://publications.waset.org/search?q=organizations%20of%20the%20third%20section" title=" organizations of the third section"> organizations of the third section</a>, <a href="https://publications.waset.org/search?q=social%20changes" title=" social changes"> social changes</a> </p> <a href="https://publications.waset.org/6105/social-marketing-and-nonprofit-organizations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/6105/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/6105/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/6105/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/6105/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/6105/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/6105/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/6105/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/6105/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/6105/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/6105/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/6105.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">2265</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">123</span> Development and Validation of the Response to Stressful Situations Scale in the General Population</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=C.%20Barreto%20Carvalho">C. Barreto Carvalho</a>, <a href="https://publications.waset.org/search?q=C.%20da%20Motta"> C. da Motta</a>, <a href="https://publications.waset.org/search?q=M.%20Sousa"> M. Sousa</a>, <a href="https://publications.waset.org/search?q=J.%20Cabral"> J. Cabral</a>, <a href="https://publications.waset.org/search?q=A.%20L.%20Carvalho"> A. L. Carvalho</a>, <a href="https://publications.waset.org/search?q=E.%20B.%20Peixoto"> E. B. Peixoto</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the current study was to develop and validate a Response to Stressful Situations Scale (RSSS) for the Portuguese population. This scale assesses the degree of stress experienced in scenarios that can constitute positive, negative and more neutral stressors, and also describes the physiological, emotional and behavioral reactions to those events according to their intensity. These scenarios include typical stressor scenarios relevant to patients with schizophrenia, which are currently absent from most scales, assessing specific risks that these stressors may bring on subjects, which may prove useful in non-clinical and clinical populations (i.e. Patients with mood or anxiety disorders, schizophrenia). Results from Principal Components Analysis and Confirmatory Factor Analysis of two adult samples from general population allowed to confirm a three-factor model with good fit indices: χ2 (144)= 370.211, p = 0.000; GFI = 0.928; CFI = 0.927; TLI = 0.914, RMSEA = 0.055, P(rmsea ≤0.005) = .096; PCFI = .781. Further data analysis of the scale revealed that RSSS is an adequate assessment tool of stress response in adults to be used in further research and clinical settings, with good psychometric characteristics, adequate divergent and convergent validity, good temporal stability and high internal consistency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Assessment" title="Assessment">Assessment</a>, <a href="https://publications.waset.org/search?q=stress%20events" title=" stress events"> stress events</a>, <a href="https://publications.waset.org/search?q=stress%20response" title=" stress response"> stress response</a>, <a href="https://publications.waset.org/search?q=stress%0D%0Avulnerability." title=" stress vulnerability."> stress vulnerability.</a> </p> <a href="https://publications.waset.org/10001542/development-and-validation-of-the-response-to-stressful-situations-scale-in-the-general-population" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10001542/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10001542/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10001542/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10001542/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10001542/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10001542/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10001542/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10001542/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10001542/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10001542/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10001542.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">2124</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">122</span> Human Resources Management Practices in Hospitality Companies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Dora%20Martins">Dora Martins</a>, <a href="https://publications.waset.org/search?q=Susana%20Silva"> Susana Silva</a>, <a href="https://publications.waset.org/search?q=C%C3%A2ndida%20Silva"> Cândida Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Human Resources Management (HRM) has been recognized by academics and practitioners as an important element in organizations. Therefore, this paper explores the best practices of HRM and seeks to understand the level of participation in the development of these practices by human resources managers in the hospitality industry and compare it with other industries. Thus, the study compared the HRM practices of companies in the hospitality sector with HRM practices of companies in other sectors, and identifies the main differences between their HRM practices. The results show that the most frequent HRM practices in all companies, independently of its sector of activity, are hiring and training. When comparing hospitality sector with other sectors of activity, some differences were noticed, namely in the adoption of the practices of communication and information sharing, and of recruitment and selection. According to these results, the paper discusses the major theoretical and practical implications. Suggestions for future research are also presented.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Human%20resources%20management%20practices" title="Human resources management practices">Human resources management practices</a>, <a href="https://publications.waset.org/search?q=human%20resources%20manager" title=" human resources manager"> human resources manager</a>, <a href="https://publications.waset.org/search?q=hospitality%20companies" title=" hospitality companies"> hospitality companies</a>, <a href="https://publications.waset.org/search?q=Portuguese%20companies" title=" Portuguese companies"> Portuguese companies</a>, <a href="https://publications.waset.org/search?q=exploratory%20study." title=" exploratory study. "> exploratory study. </a> </p> <a href="https://publications.waset.org/10008093/human-resources-management-practices-in-hospitality-companies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10008093/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10008093/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10008093/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10008093/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10008093/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10008093/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10008093/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10008093/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10008093/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10008093/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10008093.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">3444</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">121</span> Jatropha curcas L. Oil Selectivity in Froth Flotation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Andr%C3%A9%20C.%20Silva">André C. Silva</a>, <a href="https://publications.waset.org/search?q=Izabela%20L.%20A.%20Moraes"> Izabela L. A. Moraes</a>, <a href="https://publications.waset.org/search?q=Elenice%20M.%20S.%20Silva"> Elenice M. S. Silva</a>, <a href="https://publications.waset.org/search?q=Carlos%20M.%20Silva%20Filho"> Carlos M. Silva Filho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>In Brazil, most soils are acidic and low in essential nutrients required for the growth and development of plants, making fertilizers essential for agriculture. As the biggest producer of soy in the world and a major producer of coffee, sugar cane and citrus fruits, Brazil is a large consumer of phosphate. Brazilian’s phosphate ores are predominantly from igneous rocks showing a complex mineralogy, associated with carbonites and oxides, typically iron, silicon and barium. The adopted industrial concentration circuit for this type of ore is a mix between magnetic separation (both low and high field) to remove the magnetic fraction and a froth flotation circuit composed by a reverse flotation of apatite (barite’s flotation) followed by direct flotation circuit (rougher, cleaner and scavenger circuit). Since the 70’s fatty acids obtained from vegetable oils are widely used as lower-cost collectors in apatite froth flotation. This is a very effective approach to the apatite family of minerals, being that this type of collector is both selective and efficient (high recovery). This paper presents <em>Jatropha curcas</em> <em>L.</em> oil (JCO) as a renewable and sustainable source of fatty acids with high selectivity in froth flotation of apatite. JCO is considerably rich in fatty acids such as linoleic, oleic and palmitic acid. The experimental campaign involved 216 tests using a modified Hallimond tube and two different minerals (apatite and quartz). In order to be used as a collector, the oil was saponified. The results found were compared with the synthetic collector, Fotigam 5806 produced by Clariant, which is composed mainly by soy oil. JCO showed the highest selectivity for apatite flotation with cold saponification at pH 8 and concentration of 2.5 mg/L. In this case, the mineral recovery was around 95%.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Froth%20flotation" title="Froth flotation">Froth flotation</a>, <a href="https://publications.waset.org/search?q=Jatropha%20curcas%20L." title=" Jatropha curcas L."> Jatropha curcas L.</a>, <a href="https://publications.waset.org/search?q=microflotation" title=" microflotation"> microflotation</a>, <a href="https://publications.waset.org/search?q=selectivity." title=" selectivity."> selectivity.</a> </p> <a href="https://publications.waset.org/10005532/jatropha-curcas-l-oil-selectivity-in-froth-flotation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10005532/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10005532/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10005532/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10005532/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10005532/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10005532/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10005532/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10005532/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10005532/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10005532/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10005532.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">1144</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">120</span> Using the Keystrokes Dynamic for Systems of Personal Security</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Gl%C3%A1ucya%20C.%20Boechat">Gláucya C. Boechat</a>, <a href="https://publications.waset.org/search?q=Jeneffer%20C.%20Ferreira"> Jeneffer C. Ferreira</a>, <a href="https://publications.waset.org/search?q=Edson%20C.%20B.%20Carvalho"> Edson C. B. Carvalho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a boarding on biometric authentication through the Keystrokes Dynamics that it intends to identify a person from its habitual rhythm to type in conventional keyboard. Seven done experiments: verifying amount of prototypes, threshold, features and the variation of the choice of the times of the features vector. The results show that the use of the Keystroke Dynamics is simple and efficient for personal authentication, getting optimum resulted using 90% of the features with 4.44% FRR and 0% FAR. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Biometrics%20techniques" title="Biometrics techniques">Biometrics techniques</a>, <a href="https://publications.waset.org/search?q=Keystroke%20Dynamics" title=" Keystroke Dynamics"> Keystroke Dynamics</a>, <a href="https://publications.waset.org/search?q=patternrecognition." title=" patternrecognition."> patternrecognition.</a> </p> <a href="https://publications.waset.org/4018/using-the-keystrokes-dynamic-for-systems-of-personal-security" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/4018/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/4018/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/4018/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/4018/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/4018/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/4018/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/4018/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/4018/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/4018/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/4018/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/4018.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">1741</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">119</span> Advantages of Vibration in the GMAW Process for Improving the Quality and Mechanical Properties</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=C.%20A.%20C.%20Castro">C. A. C. Castro</a>, <a href="https://publications.waset.org/search?q=D.%20C.%20Urashima"> D. C. Urashima</a>, <a href="https://publications.waset.org/search?q=E.%20P.%20Silva"> E. P. Silva</a>, <a href="https://publications.waset.org/search?q=P.%20M.%20L.Silva"> P. M. L.Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since 1920, the industry has almost completely changed the rivets production techniques for the manufacture of permanent welding join production of structures and manufacture of other products. The welding arc is the process more widely used in industries. This is accomplished by the heat of an electric arc which melts the base metal while the molten metal droplets are transferred through the arc to the welding pool, protected from the atmosphere by a gas curtain. The GMAW (Gas metal arc welding) process is influenced by variables such as: current, polarity, welding speed, electrode: extension, position, moving direction; type of joint, welder's ability, among others. It is remarkable that the knowledge and control of these variables are essential for obtaining satisfactory quality welds, knowing that are interconnected so that changes in one of them requiring changes in one or more of the other to produce the desired results. The optimum values are affected by the type of base metal, the electrode composition, the welding position and the quality requirements. Thus, this paper proposes a new methodology, adding the variable vibration through a mechanism developed for GMAW welding, in order to improve the mechanical and metallurgical properties which does not affect the ability of the welder and enables repeatability of the welds made. For confirmation metallographic analysis and mechanical tests were made. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=HAZ" title="HAZ">HAZ</a>, <a href="https://publications.waset.org/search?q=GMAW" title=" GMAW"> GMAW</a>, <a href="https://publications.waset.org/search?q=vibration" title=" vibration"> vibration</a>, <a href="https://publications.waset.org/search?q=welding." title=" welding."> welding.</a> </p> <a href="https://publications.waset.org/10001970/advantages-of-vibration-in-the-gmaw-process-for-improving-the-quality-and-mechanical-properties" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10001970/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10001970/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10001970/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10001970/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10001970/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10001970/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10001970/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10001970/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10001970/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10001970/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10001970.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">1808</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">118</span> Limestone Briquette Production and Characterization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Andr%C3%A9%20C.%20Silva">André C. Silva</a>, <a href="https://publications.waset.org/search?q=Mariana%20R.%20Barros"> Mariana R. Barros</a>, <a href="https://publications.waset.org/search?q=Elenice%20M.%20S.%20Silva"> Elenice M. S. Silva</a>, <a href="https://publications.waset.org/search?q=Douglas.%20Y.%20Marinho"> Douglas. Y. Marinho</a>, <a href="https://publications.waset.org/search?q=Diego%20F.%20Lopes"> Diego F. Lopes</a>, <a href="https://publications.waset.org/search?q=D%C3%A9bora%20N.%20Sousa"> Débora N. Sousa</a>, <a href="https://publications.waset.org/search?q=Raphael%20S.%20Tom%C3%A1z"> Raphael S. Tomáz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Modern agriculture requires productivity, efficiency and quality. Therefore, there is need for agricultural limestone implementation that provides adequate amounts of calcium and magnesium carbonates in order to correct soil acidity. During the limestone process, fine particles (with average size under 400#) are generated. These particles do not have economic value in agricultural and metallurgical sectors due their size. When limestone is used for agriculture purposes, these fine particles can be easily transported by wind generated air pollution. Therefore, briquetting, a mineral processing technique, was used to mitigate this problem resulting in an agglomerated product suitable for agriculture use. Briquetting uses compressive pressure to agglomerate fine particles. It can be aided by agglutination agents, allowing adjustments in shape, size and mechanical parameters of the mass. Briquettes can generate extra profits for mineral industry, presenting as a distinct product for agriculture, and can reduce the environmental liabilities of the fine particles storage or disposition. The produced limestone briquettes were subjected to shatter and water action resistance tests. The results show that after six minutes completely submerged in water, the briquettes where fully diluted, a highly favorable result considering its use for soil acidity correction.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Agglomeration" title="Agglomeration">Agglomeration</a>, <a href="https://publications.waset.org/search?q=briquetting" title=" briquetting"> briquetting</a>, <a href="https://publications.waset.org/search?q=limestone" title=" limestone"> limestone</a>, <a href="https://publications.waset.org/search?q=agriculture." title=" agriculture."> agriculture.</a> </p> <a href="https://publications.waset.org/10005761/limestone-briquette-production-and-characterization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10005761/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10005761/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10005761/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10005761/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10005761/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10005761/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10005761/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10005761/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10005761/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10005761/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10005761.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">1599</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">117</span> Comparative Analysis of Two Modeling Approaches for Optimizing Plate Heat Exchangers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=F%C3%A1bio%20A.%20S.%20Mota">Fábio A. S. Mota</a>, <a href="https://publications.waset.org/search?q=Mauro%20A.%20S.%20S.%20Ravagnani"> Mauro A. S. S. Ravagnani</a>, <a href="https://publications.waset.org/search?q=E.%20P.%20Carvalho"> E. P. Carvalho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>In the present paper the design of plate heat exchangers is formulated as an optimization problem considering two mathematical modelling. The number of plates is the objective function to be minimized, considering implicitly some parameters configuration. Screening is the optimization method used to solve the problem. Thermal and hydraulic constraints are verified, not viable solutions are discarded and the method searches for the convergence to the optimum, case it exists. A case study is presented to test the applicability of the developed algorithm. Results show coherency with the literature.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Plate%20heat%20exchanger" title="Plate heat exchanger">Plate heat exchanger</a>, <a href="https://publications.waset.org/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/search?q=modeling" title=" modeling"> modeling</a>, <a href="https://publications.waset.org/search?q=simulation." title=" simulation."> simulation.</a> </p> <a href="https://publications.waset.org/10002329/comparative-analysis-of-two-modeling-approaches-for-optimizing-plate-heat-exchangers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10002329/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10002329/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10002329/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10002329/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10002329/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10002329/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10002329/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10002329/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10002329/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10002329/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10002329.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">1961</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">116</span> Agile Index: Automotive Supply Chain</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Susana%20G.%20Azevedo">Susana G. Azevedo</a>, <a href="https://publications.waset.org/search?q=Helena%20Carvalho"> Helena Carvalho</a>, <a href="https://publications.waset.org/search?q=V.%20Cruz%20%E2%80%93Machado"> V. Cruz –Machado</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The supply chains (SCs) have to appeal to new management paradigms to improve their ability to respond rapidly and cost effectively to unpredictable changes in markets and increasing levels of environmental turbulence, both in terms of volume and variety. In this highly demanded context, the Agile paradigm provides the capabilities to SC quickly adapt to changes in the market requirements. The purpose of this paper is to suggest an Agile Index to assess the agility of the automotive companies and corresponding SCs. The proposed integrated assessment model incorporates Agile practices weighted according to their importance to the automotive SC competitiveness and obtained from the Delphi technique.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Agile" title="Agile">Agile</a>, <a href="https://publications.waset.org/search?q=Supply%20chain%20management" title=" Supply chain management"> Supply chain management</a>, <a href="https://publications.waset.org/search?q=Index" title=" Index"> Index</a>, <a href="https://publications.waset.org/search?q=Delphitechnique." title=" Delphitechnique."> Delphitechnique.</a> </p> <a href="https://publications.waset.org/11847/agile-index-automotive-supply-chain" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/11847/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/11847/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/11847/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/11847/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/11847/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/11847/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/11847/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/11847/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/11847/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/11847/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/11847.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">1740</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">115</span> Optimal Consume of NaOH in Starches Gelatinization for Froth Flotation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Andr%C3%A9%20C.%20Silva">André C. Silva</a>, <a href="https://publications.waset.org/search?q=D%C3%A9bora%20N.%20Sousa"> Débora N. Sousa</a>, <a href="https://publications.waset.org/search?q=Elenice%20M.%20S.%20Silva"> Elenice M. S. Silva</a>, <a href="https://publications.waset.org/search?q=Thales%20P.%20Fontes"> Thales P. Fontes</a>, <a href="https://publications.waset.org/search?q=Raphael%20S.%20Tomaz"> Raphael S. Tomaz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Starches are widely used as depressant in froth flotation operations in Brazil due to their efficiency, increasing the selectivity in the inverse flotation of quartz depressing iron ore. Starches market have been growing and improving in recent years, leading to better products attending the requirements of the mineral industry. The major source of starch used for iron ore is corn starch, which needs to be gelatinized with sodium hydroxide (NaOH) prior to use. This stage has a direct impact on industrials costs, once the lowest consumption of NaOH in gelatinization provides better control of the pH in the froth flotation and reduces the amount of electrolytes present in the pulp. In order to evaluate the gelatinization degree of different starches and flour were subjected to the addiction of NaOH and temperature variation experiments. Samples of starch (corn, cassava, HIPIX 100, HIPIX 101 and HIPIX 102 commercialized by Ingredion) and flour (cassava and potato) were tested. The starch samples were characterized through Scanning Electronic Microscopy and the amylose content were determined through spectrometry, swelling and solubility tests. The gelatinization was carried out through titration with NaOH, keeping the solution temperature constant at 40 <sup>o</sup>C. At the end of the tests, the optimal amount of NaOH consumed to gelatinize the starch or flour from different botanical sources was established and a correlation between the content of amylopectin in the starch and the starch/NaOH ratio needed for its gelatinization.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Froth%20flotation" title="Froth flotation">Froth flotation</a>, <a href="https://publications.waset.org/search?q=gelatinization" title=" gelatinization"> gelatinization</a>, <a href="https://publications.waset.org/search?q=sodium%20hydroxide" title=" sodium hydroxide"> sodium hydroxide</a>, <a href="https://publications.waset.org/search?q=starches%20and%20flours." title=" starches and flours. "> starches and flours. </a> </p> <a href="https://publications.waset.org/10005681/optimal-consume-of-naoh-in-starches-gelatinization-for-froth-flotation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10005681/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10005681/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10005681/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10005681/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10005681/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10005681/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10005681/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10005681/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10005681/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10005681/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10005681.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">1929</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">114</span> Hydrochemical Contamination Profiling and Spatial-Temporal Mapping with the Support of Multivariate and Cluster Statistical Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=S.%20Barbosa">S. Barbosa</a>, <a href="https://publications.waset.org/search?q=M.%20Pinto"> M. Pinto</a>, <a href="https://publications.waset.org/search?q=J.%20A.%20Almeida"> J. A. Almeida</a>, <a href="https://publications.waset.org/search?q=E.%20Carvalho"> E. Carvalho</a>, <a href="https://publications.waset.org/search?q=C.%20Diamantino"> C. Diamantino</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The aim of this work was to test a methodology able to generate spatial-temporal maps that can synthesize simultaneously the trends of distinct hydrochemical indicators in an old radium-uranium tailings dam deposit. Multidimensionality reduction derived from principal component analysis and subsequent data aggregation derived from clustering analysis allow to identify distinct hydrochemical behavioral profiles and generate synthetic evolutionary hydrochemical maps.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Contamination%20plume%20migration" title="Contamination plume migration">Contamination plume migration</a>, <a href="https://publications.waset.org/search?q=K-means%20of%20PCA%20scores" title=" K-means of PCA scores"> K-means of PCA scores</a>, <a href="https://publications.waset.org/search?q=groundwater%20and%20mine%20water%20monitoring" title=" groundwater and mine water monitoring"> groundwater and mine water monitoring</a>, <a href="https://publications.waset.org/search?q=spatial-temporal%20hydrochemical%20trends." title=" spatial-temporal hydrochemical trends."> spatial-temporal hydrochemical trends.</a> </p> <a href="https://publications.waset.org/10012200/hydrochemical-contamination-profiling-and-spatial-temporal-mapping-with-the-support-of-multivariate-and-cluster-statistical-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10012200/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10012200/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10012200/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10012200/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10012200/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10012200/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10012200/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10012200/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10012200/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10012200/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10012200.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">627</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">113</span> Adsorption of Paracetamol Using Activated Carbon of Dende and Babassu Coconut Mesocarp</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=R.%20C.%20Ferreira">R. C. Ferreira</a>, <a href="https://publications.waset.org/search?q=H.%20H.%20C.%20De%20Lima"> H. H. C. De Lima</a>, <a href="https://publications.waset.org/search?q=A.%20A.%20C%C3%A2ndido"> A. A. Cândido</a>, <a href="https://publications.waset.org/search?q=O.%20M.%20Couto%20Junior"> O. M. Couto Junior</a>, <a href="https://publications.waset.org/search?q=P.%20A.%20Arroyo"> P. A. Arroyo</a>, <a href="https://publications.waset.org/search?q=K.%20Q%20De%20Carvalho"> K. Q De Carvalho</a>, <a href="https://publications.waset.org/search?q=G.%20F.%20Gauze"> G. F. Gauze</a>, <a href="https://publications.waset.org/search?q=M.%20A.%20S.%20D.%20Barros"> M. A. S. D. Barros</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Removal of the widespread used drug paracetamol from water was investigated using activated carbon originated from dende coconut mesocarp and babassu coconut mesocarp. Kinetic and equilibrium data were obtained at different values of pH. Both activated carbons showed high efficiency when pH ≤ pHPZC as the carbonil group of paracetamol molecule are adsorbed due to positively charged carbon surface. Microporosity also played an important role in such process. Pseudo-second order model was better adjusted to the kinetic results. Equilibrium data may be represented by Langmuir equation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Adsorption" title="Adsorption">Adsorption</a>, <a href="https://publications.waset.org/search?q=activated%20carbon" title=" activated carbon"> activated carbon</a>, <a href="https://publications.waset.org/search?q=babassu" title=" babassu"> babassu</a>, <a href="https://publications.waset.org/search?q=dende." title=" dende."> dende.</a> </p> <a href="https://publications.waset.org/10001579/adsorption-of-paracetamol-using-activated-carbon-of-dende-and-babassu-coconut-mesocarp" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10001579/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10001579/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10001579/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10001579/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10001579/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10001579/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10001579/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10001579/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10001579/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10001579/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10001579.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">3198</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">112</span> Solutions for Comfort and Safety on Vibrations Resulting from the Action of the Wind on the Building in the Form of Portico with Four Floors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=G.%20B.%20M.%20Carvalho">G. B. M. Carvalho</a>, <a href="https://publications.waset.org/search?q=V.%20A.%20C.%20Vale"> V. A. C. Vale</a>, <a href="https://publications.waset.org/search?q=E.%20T.%20L.%20C%C3%B6uras%20Ford"> E. T. L. Cöuras Ford</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>With the aim of increasing the levels of comfort and security structures, the study of dynamic loads on buildings has been one of the focuses in the area of control engineering, civil engineering and architecture. Thus, this work presents a study based on simulation of the dynamics of buildings in the form of portico subjected to wind action, besides presenting an action of passive control, using for this the dynamics of the structure, consequently representing a system appropriated on environmental issues. These control systems are named the dynamic vibration absorbers.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Dynamic%20vibration%20absorber" title="Dynamic vibration absorber">Dynamic vibration absorber</a>, <a href="https://publications.waset.org/search?q=structure" title=" structure"> structure</a>, <a href="https://publications.waset.org/search?q=comfort" title=" comfort"> comfort</a>, <a href="https://publications.waset.org/search?q=safety" title=" safety"> safety</a>, <a href="https://publications.waset.org/search?q=wind%20behavior" title=" wind behavior"> wind behavior</a>, <a href="https://publications.waset.org/search?q=structure." title=" structure."> structure.</a> </p> <a href="https://publications.waset.org/10007710/solutions-for-comfort-and-safety-on-vibrations-resulting-from-the-action-of-the-wind-on-the-building-in-the-form-of-portico-with-four-floors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10007710/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10007710/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10007710/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10007710/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10007710/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10007710/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10007710/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10007710/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10007710/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10007710/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10007710.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">769</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">111</span> Analysis of Supply Chain Risk Management Strategies: Case Study of Supply Chain Disruptions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Marcelo%20Dias%20Carvalho">Marcelo Dias Carvalho</a>, <a href="https://publications.waset.org/search?q=Leticia%20Ishikawa"> Leticia Ishikawa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Supply Chain Risk Management refers to a set of strategies used by companies to avoid supply chain disruption caused by damage at production facilities, natural disasters, capacity issues, inventory problems, incorrect forecasts, and delays. Many companies use the techniques of the Toyota Production System, which in a way goes against a better management of supply chain risks. This paper studies key events in some multinationals to analyze the trade-off between the best supply chain risk management techniques and management policies designed to create lean enterprises. The result of a good balance of these actions is the reduction of losses, increased customer trust in the company and better preparedness to face the general risks of a supply chain. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Supply%20chain%20disruptions" title="Supply chain disruptions">Supply chain disruptions</a>, <a href="https://publications.waset.org/search?q=supply%20chain%20management" title=" supply chain management"> supply chain management</a>, <a href="https://publications.waset.org/search?q=supply%20chain%20resilience" title=" supply chain resilience"> supply chain resilience</a>, <a href="https://publications.waset.org/search?q=just-in-time%20production" title=" just-in-time production"> just-in-time production</a>, <a href="https://publications.waset.org/search?q=lean%20manufacturing." title=" lean manufacturing."> lean manufacturing.</a> </p> <a href="https://publications.waset.org/10005472/analysis-of-supply-chain-risk-management-strategies-case-study-of-supply-chain-disruptions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10005472/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10005472/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10005472/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10005472/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10005472/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10005472/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10005472/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10005472/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10005472/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10005472/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10005472.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">3526</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">110</span> The role of pH on Cr(VI) Reduction and Removal by Arthrobacter Viscosus</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=B.%20Silva">B. Silva</a>, <a href="https://publications.waset.org/search?q=H.%20Figueiredo"> H. Figueiredo</a>, <a href="https://publications.waset.org/search?q=I.%20C.%20Neves"> I. C. Neves</a>, <a href="https://publications.waset.org/search?q=T.%20Tavares"> T. Tavares</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Arthrobacter viscosus biomass was used for Cr(VI) biosorption. The effect of pH on Cr(VI) reduction and removal from aqueous solution was studied in the range of 1-4. The Cr(VI) removal involves both redox reaction and adsorption of metal ions on biomass surface. The removal rate of Cr(VI) was enhanced by very acid conditions, while higher solution pH values favored the removal of total chromium. The best removal efficiency and uptake were reached at pH 4, 72.5 % and 12.6 mgCr/gbiomass, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Biosorption" title="Biosorption">Biosorption</a>, <a href="https://publications.waset.org/search?q=chromium" title=" chromium"> chromium</a>, <a href="https://publications.waset.org/search?q=pH" title=" pH"> pH</a>, <a href="https://publications.waset.org/search?q=reduction." title=" reduction."> reduction.</a> </p> <a href="https://publications.waset.org/4530/the-role-of-ph-on-crvi-reduction-and-removal-by-arthrobacter-viscosus" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/4530/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/4530/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/4530/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/4530/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/4530/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/4530/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/4530/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/4530/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/4530/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/4530/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/4530.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">1682</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">109</span> Prototype of an Interactive Toy from Lego Robotics Kits for Children with Autism</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Ricardo%20A.%20Martins">Ricardo A. Martins</a>, <a href="https://publications.waset.org/search?q=Matheus%20S.%20da%20Silva"> Matheus S. da Silva</a>, <a href="https://publications.waset.org/search?q=Gabriel%20H.%20F.%20Iarossi"> Gabriel H. F. Iarossi</a>, <a href="https://publications.waset.org/search?q=Helen%20C.%20M.%20Senefonte"> Helen C. M. Senefonte</a>, <a href="https://publications.waset.org/search?q=Cinthyan%20R.%20S.%20C.%20de%20Barbosa"> Cinthyan R. S. C. de Barbosa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper is the development of a concept of the man/robot interaction. More accurately in developing of an autistic child that have more troubles with interaction, here offers an efficient solution, even though simple; however, less studied for this public. This concept is based on code applied thought out the Lego NXT kit, built for the interpretation of the robot, thereby can create this interaction in a constructive way for children suffering with Autism. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Lego%20NXT" title="Lego NXT">Lego NXT</a>, <a href="https://publications.waset.org/search?q=autism" title=" autism"> autism</a>, <a href="https://publications.waset.org/search?q=ANN%20%28Artificial%20Neural%20Network%29" title=" ANN (Artificial Neural Network)"> ANN (Artificial Neural Network)</a>, <a href="https://publications.waset.org/search?q=Backpropagation." title=" Backpropagation."> Backpropagation.</a> </p> <a href="https://publications.waset.org/10006231/prototype-of-an-interactive-toy-from-lego-robotics-kits-for-children-with-autism" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10006231/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10006231/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10006231/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10006231/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10006231/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10006231/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10006231/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10006231/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10006231/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10006231/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10006231.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">882</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">108</span> Analysis of Program PRIME at Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Iracema%20Machado%20de%20Arag%C3%A3o%20Gomes">Iracema Machado de Aragão Gomes</a>, <a href="https://publications.waset.org/search?q=%C3%8Dkaro%20Daniel%20Carvalho%20Barreto"> Íkaro Daniel Carvalho Barreto</a>, <a href="https://publications.waset.org/search?q=Suzana%20Leit%C3%A3o%20Russo"> Suzana Leitão Russo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Policies that support entrepreneurship are keys to the generation of new business. In Brazil, seed capital, installation of technology parks, programs and zero interest financing, economic subsidy as Program First Innovative Company (PRIME) are examples of incentive policies. For the implementation of PRIME, in particular the Brazilian Innovation Agency (FINEP) decentralized operationalization so that business incubators could select innovative projects. This paper analyzes the program PRIME Business Incubator Center of the State of Sergipe (CISE) after calculating the mean and standard deviation of the grades obtained by companies in the factors of innovation, market potential, financial return economic, market strategy and staff and application of the Mann-Whitney test. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Entrepreneurship" title="Entrepreneurship">Entrepreneurship</a>, <a href="https://publications.waset.org/search?q=innovation" title=" innovation"> innovation</a>, <a href="https://publications.waset.org/search?q=technology%20parks" title=" technology parks"> technology parks</a>, <a href="https://publications.waset.org/search?q=business%20incubators." title=" business incubators."> business incubators.</a> </p> <a href="https://publications.waset.org/6477/analysis-of-program-prime-at-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/6477/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/6477/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/6477/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/6477/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/6477/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/6477/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/6477/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/6477/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/6477/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/6477/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/6477.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">1895</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">107</span> Effects of a Nectandra Membranacea Extract on Labeling of Blood Constituents with Technetium-99m and on the Morphology of Red Blood Cells</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Silvana%20R.F.%20Moreno">Silvana R.F. Moreno</a>, <a href="https://publications.waset.org/search?q=Jorge%20J.%20Carvalho"> Jorge J. Carvalho</a>, <a href="https://publications.waset.org/search?q=Ana%20L.%20Nascimento"> Ana L. Nascimento</a>, <a href="https://publications.waset.org/search?q=Mario%20Pereira"> Mario Pereira</a>, <a href="https://publications.waset.org/search?q=Luiz%20Q.%20A.%20Caldas"> Luiz Q. A. Caldas</a>, <a href="https://publications.waset.org/search?q=M%C3%A1rio%20Bernardo-Filho">Mário Bernardo-Filho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The aim of this in vitro study was to evaluate the possible interference of a Nectandra membranacea extract (i) on the labeling of blood cells (BC), (ii) on the labeling process of BC and plasma (P) proteins with technetium-99m (Tc-99m) and (iii) on the morphology of red blood cells (RBC). Blood samples were incubated with a Nectandra membranacea crude extract, stannous chloride, Tc- 99m (sodium pertechnetate) was added, and soluble (SF) and insoluble (IF) fractions were isolated. Morphometry studies were performed with blood samples incubated with Nectandra membranacea extract. The results show that the Nectandra membranacea extract does not promote significant alteration of the labeling of BC, IF-P and IF-BC. The Nectandra membranacea extract was able to alter the erythrocyte membrane morphology, but these morphological changes were not capable to interfere on the labeling of blood constituents with Tc-99m.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=in%20vitro%20study" title="in vitro study">in vitro study</a>, <a href="https://publications.waset.org/search?q=Nectandra%20membranacea" title=" Nectandra membranacea"> Nectandra membranacea</a>, <a href="https://publications.waset.org/search?q=red%20bloodcell" title=" red bloodcell"> red bloodcell</a>, <a href="https://publications.waset.org/search?q=technetium-99m" title=" technetium-99m"> technetium-99m</a> </p> <a href="https://publications.waset.org/7103/effects-of-a-nectandra-membranacea-extract-on-labeling-of-blood-constituents-with-technetium-99m-and-on-the-morphology-of-red-blood-cells" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/7103/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/7103/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/7103/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/7103/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/7103/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/7103/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/7103/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/7103/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/7103/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/7103/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/7103.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">1659</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">106</span> New Findings on the User’s Preferences about Data Visualization of Online Reviews</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Elizabeth%20Sim%C3%A3o%20Carvalho">Elizabeth Simão Carvalho</a>, <a href="https://publications.waset.org/search?q=Marcirio%20Silveira%20Chaves"> Marcirio Silveira Chaves</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>The information visualization is still a knowledge field that lacks from a solid theory to support it and there is a myriad of existing methodologies and taxonomies that can be combined and adopted as guidelines. In this context, it is necessary to pre-evaluate as much as possible all the assumptions that are considered for its design and development. We present an exploratory study (n = 123) to detect the graphical preferences of travelers using accommodation portals of Web 2.0 (e.g. tripadvisor.com). We took into account some of the most relevant ground rules applied in the field to map visually data and design end-user interaction. Moreover, the evaluation process was completely data visualization oriented. We found out that people tend to refuse more advanced types of visualization and that a hybrid combination between radial graphs and stacked bars should be explored. In sum, this paper introduces new findings about the visual model and the cognitive response of users of accommodation booking websites.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Information%20visualization" title="Information visualization">Information visualization</a>, <a href="https://publications.waset.org/search?q=Data%20visualization" title=" Data visualization"> Data visualization</a>, <a href="https://publications.waset.org/search?q=Visualization%20evaluation" title=" Visualization evaluation"> Visualization evaluation</a>, <a href="https://publications.waset.org/search?q=Online%20reviews" title=" Online reviews"> Online reviews</a>, <a href="https://publications.waset.org/search?q=Booking%20portal" title=" Booking portal"> Booking portal</a>, <a href="https://publications.waset.org/search?q=Hotel%20booking." title=" Hotel booking."> Hotel booking.</a> </p> <a href="https://publications.waset.org/17360/new-findings-on-the-users-preferences-about-data-visualization-of-online-reviews" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/17360/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/17360/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/17360/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/17360/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/17360/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/17360/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/17360/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/17360/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/17360/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/17360/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/17360.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">1720</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">105</span> Characterization and Development of Anthropomorphic Phantoms Liver for Use in Nuclear Medicine</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Ferreira%20F.%20C.%20L.">Ferreira F. C. L.</a>, <a href="https://publications.waset.org/search?q=Souza%20D.%20N."> Souza D. N.</a>, <a href="https://publications.waset.org/search?q=Rodrigues%20T.%20M.%20A."> Rodrigues T. M. A.</a>, <a href="https://publications.waset.org/search?q=Cunha%20C.%20J."> Cunha C. J.</a>, <a href="https://publications.waset.org/search?q=Dullius%20M.%20A."> Dullius M. A.</a>, <a href="https://publications.waset.org/search?q=Andrade%20J.%20E."> Andrade J. E.</a>, <a href="https://publications.waset.org/search?q=Sousa%0D%0AA.%20H."> Sousa A. H.</a>, <a href="https://publications.waset.org/search?q=Vieira%20J.%20P.%20C."> Vieira J. P. C.</a>, <a href="https://publications.waset.org/search?q=Carvalho%20J%C3%BAnior%20A.%20B."> Carvalho Júnior A. B.</a>, <a href="https://publications.waset.org/search?q=Santos%20L.%20P.%20B."> Santos L. P. B.</a>, <a href="https://publications.waset.org/search?q=Passos%20R.%20O."> Passos R. O.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective this study was to characterize and develop anthropomorphic liver phantoms in tomography hepatic procedures for quality control and improvement professionals in nuclear medicine. For the conformation of the anthropomorphic phantom was used in plaster and acrylic. We constructed three phantoms representing processes with liver cirrhosis. The phantoms were filled with 99mTc diluted with water to obtain the scintigraphic images. Tomography images were analyzed anterior and posterior phantom representing a body with a greater degree cirrhotic. It was noted that the phantoms allow the acquisition of images similar to real liver with cirrhosis. Simulations of hemangiomas may contribute to continued professional education of nuclear medicine, on the question of image acquisition, allowing of the study parameters such of the matrix, energy window and count statistics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Nuclear%20medicine" title="Nuclear medicine">Nuclear medicine</a>, <a href="https://publications.waset.org/search?q=liver%20phantom" title=" liver phantom"> liver phantom</a>, <a href="https://publications.waset.org/search?q=control%20quality" title=" control quality"> control quality</a> </p> <a href="https://publications.waset.org/14142/characterization-and-development-of-anthropomorphic-phantoms-liver-for-use-in-nuclear-medicine" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/14142/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/14142/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/14142/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/14142/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/14142/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/14142/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/14142/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/14142/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/14142/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/14142/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/14142.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">1678</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">104</span> Fatigue Life Prediction on Steel Beam Bridges under Variable Amplitude Loading</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=M.%20F.%20V.%20Montezuma">M. F. V. Montezuma</a>, <a href="https://publications.waset.org/search?q=E.%20P.%20Deus"> E. P. Deus</a>, <a href="https://publications.waset.org/search?q=M.%20C.%20Carvalho"> M. C. Carvalho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Steel bridges are normally subjected to random loads with different traffic frequencies. They are structures with dynamic behavior and are subject to fatigue failure process, where the nucleation of a crack, growth and failure can occur. After locating and determining the size of an existing fault, it is important to predict the crack propagation and the convenient time for repair. Therefore, fracture mechanics and fatigue concepts are essential to the right approach to the problem. To study the fatigue crack growth, a computational code was developed by using the root mean square (RMS) and the cycle-by-cycle models. One observes the variable amplitude loading influence on the life structural prediction. Different loads histories and initial crack length were considered as input variables. Thus, it was evaluated the dispersion of results of the expected structural life choosing different initial parameters.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Fatigue%20crack%20propagation" title="Fatigue crack propagation">Fatigue crack propagation</a>, <a href="https://publications.waset.org/search?q=life%20prediction" title=" life prediction"> life prediction</a>, <a href="https://publications.waset.org/search?q=variable%20loadings" title=" variable loadings"> variable loadings</a>, <a href="https://publications.waset.org/search?q=steel%20bridges." title=" steel bridges."> steel bridges.</a> </p> <a href="https://publications.waset.org/10012194/fatigue-life-prediction-on-steel-beam-bridges-under-variable-amplitude-loading" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10012194/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10012194/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10012194/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10012194/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10012194/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10012194/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10012194/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10012194/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10012194/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10012194/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10012194.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">529</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">103</span> Independent Spanning Trees on Systems-on-chip Hypercubes Routing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Eduardo%20Sant%27Ana%20da%20Silva">Eduardo Sant'Ana da Silva</a>, <a href="https://publications.waset.org/search?q=Andre%20Luiz%20Pires%20Guedes"> Andre Luiz Pires Guedes</a>, <a href="https://publications.waset.org/search?q=Eduardo%20Todt"> Eduardo Todt</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Independent spanning trees (ISTs) provide a number of advantages in data broadcasting. One can cite the use in fault tolerance network protocols for distributed computing and bandwidth. However, the problem of constructing multiple ISTs is considered hard for arbitrary graphs. In this paper we present an efficient algorithm to construct ISTs on hypercubes that requires minimum resources to be performed.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Hypercube" title="Hypercube">Hypercube</a>, <a href="https://publications.waset.org/search?q=Independent%20Spanning%20Trees" title=" Independent Spanning Trees"> Independent Spanning Trees</a>, <a href="https://publications.waset.org/search?q=Networks%0D%0AOn%20Chip" title=" Networks On Chip"> Networks On Chip</a>, <a href="https://publications.waset.org/search?q=Systems%20On%20Chip." title=" Systems On Chip."> Systems On Chip.</a> </p> <a href="https://publications.waset.org/11659/independent-spanning-trees-on-systems-on-chip-hypercubes-routing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/11659/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/11659/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/11659/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/11659/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/11659/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/11659/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/11659/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/11659/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/11659/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/11659/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/11659.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">1888</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">102</span> Fatigue Failure Analysis in AISI 304 Stainless Wind Turbine Shafts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=M.%20F.%20V.%20Montezuma">M. F. V. Montezuma</a>, <a href="https://publications.waset.org/search?q=E.%20P.%20Deus"> E. P. Deus</a>, <a href="https://publications.waset.org/search?q=M.%20C.%20Carvalho"> M. C. Carvalho</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>Wind turbines are equipment of great importance for generating clean energy in countries and regions with abundant winds. However, complex loadings fluctuations to which they are subject can cause premature failure of these equipment due to the material fatigue process. This work evaluates fatigue failures in small AISI 304 stainless steel turbine shafts. Fractographic analysis techniques, chemical analyzes using energy dispersive spectrometry (EDS), and hardness tests were used to verify the origin of the failures, characterize the properties of the components and the material. The nucleation of cracks on the shafts' surface was observed due to a combined effect of variable stresses, geometric stress concentrating details, and surface wear, leading to the crack's propagation until the catastrophic failure. Beach marks were identified in the macrographic examination, characterizing the probable failure due to fatigue. The sensitization phenomenon was also observed.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Fatigue" title="Fatigue">Fatigue</a>, <a href="https://publications.waset.org/search?q=sensitization%20phenomenon" title=" sensitization phenomenon"> sensitization phenomenon</a>, <a href="https://publications.waset.org/search?q=stainless%20steel%20shafts" title=" stainless steel shafts"> stainless steel shafts</a>, <a href="https://publications.waset.org/search?q=wind%20turbine%20failure." title=" wind turbine failure."> wind turbine failure.</a> </p> <a href="https://publications.waset.org/10012138/fatigue-failure-analysis-in-aisi-304-stainless-wind-turbine-shafts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10012138/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10012138/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10012138/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10012138/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10012138/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10012138/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10012138/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10012138/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10012138/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10012138/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10012138.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">711</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">101</span> Risk of Occupational Exposure to Cytotoxic Drugs: The Role of Handling Procedures of Hospital Workers</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=J.%20Silva">J. Silva</a>, <a href="https://publications.waset.org/search?q=P.%20Arezes"> P. Arezes</a>, <a href="https://publications.waset.org/search?q=R.%20Schierl"> R. Schierl</a>, <a href="https://publications.waset.org/search?q=N.%20Costa"> N. Costa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> <p>In order to study environmental contamination by cytostatic drugs in Portugal hospitals, sampling campaigns were conducted in three hospitals in 2015 (112 samples). Platinum containing drugs and fluorouracil were chosen because both were administered in high amounts. The detection limit was 0.01 pg/cm² for platinum and 0.1 pg/cm² for fluorouracil. The results show that spills occur mainly on the patient`s chair, while the most referenced occurrence is due to an inadequately closed wrapper. Day hospitals facilities were detected as having the largest number of contaminated samples and with higher levels of contamination.</p> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Antineoplastic" title="Antineoplastic">Antineoplastic</a>, <a href="https://publications.waset.org/search?q=drugs" title=" drugs"> drugs</a>, <a href="https://publications.waset.org/search?q=exposure" title=" exposure"> exposure</a>, <a href="https://publications.waset.org/search?q=surface." title=" surface."> surface.</a> </p> <a href="https://publications.waset.org/10008002/risk-of-occupational-exposure-to-cytotoxic-drugs-the-role-of-handling-procedures-of-hospital-workers" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10008002/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10008002/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10008002/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10008002/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10008002/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10008002/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10008002/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10008002/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10008002/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10008002/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10008002.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">1054</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">100</span> The Importance of 3D Mesh Generation for Large Eddy Simulation of Gas – Solid Turbulent Flows in a Fluidized Beds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=G.%20Gonz%C3%A1lez-Silva">G. González-Silva</a>, <a href="https://publications.waset.org/search?q=E.%20M.%20Matos"> E. M. Matos</a>, <a href="https://publications.waset.org/search?q=W.%20P.%20Martignoni"> W. P. Martignoni</a>, <a href="https://publications.waset.org/search?q=M.%20Mori"> M. Mori</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this work is to show a procedure for mesh generation in a fluidized bed using large eddy simulations (LES) of a filtered two-fluid model. The experimental data were obtained by [1] in a laboratory fluidized bed. Results show that it is possible to use mesh with less cells as compared to RANS turbulence model with granular kinetic theory flow (KTGF). Also, the numerical results validate the experimental data near wall of the bed, which cannot be predicted by RANS.model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=LES" title="LES">LES</a>, <a href="https://publications.waset.org/search?q=Mesh" title=" Mesh"> Mesh</a>, <a href="https://publications.waset.org/search?q=Gas-Solid" title=" Gas-Solid"> Gas-Solid</a>, <a href="https://publications.waset.org/search?q=Fluidized%20bed" title=" Fluidized bed"> Fluidized bed</a> </p> <a href="https://publications.waset.org/3348/the-importance-of-3d-mesh-generation-for-large-eddy-simulation-of-gas-solid-turbulent-flows-in-a-fluidized-beds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/3348/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/3348/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/3348/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/3348/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/3348/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/3348/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/3348/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/3348/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/3348/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/3348/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/3348.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">2124</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">99</span> Characterization of an Extrapolation Chamber for Dosimetry of Low Energy X-Ray Beams </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Fernanda%20M.%20Bastos">Fernanda M. Bastos</a>, <a href="https://publications.waset.org/search?q=Te%C3%B3genes%20A.%20da%20Silva"> Teógenes A. da Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Extrapolation chambers were designed to be used as primary standard dosimeter for measuring absorbed dose in a medium in beta radiation and low energy x-rays. The International Organization for Standardization established series of reference x-radiation for calibrating and determining the energy dependence of dosimeters that are to be reproduced in metrology laboratories. Standardization of the low energy x-ray beams with tube potential lower than 30 kV may be affected by the instrument used for dosimetry. In this work, parameters of a 23392 model PTW extrapolation chamber were determined aiming its use in low energy x-ray beams as a reference instrument. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Extrapolation%20chamber" title="Extrapolation chamber">Extrapolation chamber</a>, <a href="https://publications.waset.org/search?q=low%20energy%20x-rays" title=" low energy x-rays"> low energy x-rays</a>, <a href="https://publications.waset.org/search?q=standardization" title=" standardization"> standardization</a>, <a href="https://publications.waset.org/search?q=x-ray%20dosimetry." title=" x-ray dosimetry."> x-ray dosimetry.</a> </p> <a href="https://publications.waset.org/10005648/characterization-of-an-extrapolation-chamber-for-dosimetry-of-low-energy-x-ray-beams" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/10005648/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/10005648/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a href="https://publications.waset.org/10005648/chicago" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Chicago</a> <a href="https://publications.waset.org/10005648/endnote" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">EndNote</a> <a href="https://publications.waset.org/10005648/harvard" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">Harvard</a> <a href="https://publications.waset.org/10005648/json" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">JSON</a> <a href="https://publications.waset.org/10005648/mla" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">MLA</a> <a href="https://publications.waset.org/10005648/ris" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">RIS</a> <a href="https://publications.waset.org/10005648/xml" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">XML</a> <a href="https://publications.waset.org/10005648/iso690" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">ISO 690</a> <a href="https://publications.waset.org/10005648.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">1460</span> </span> </div> </div> <div class="card publication-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">98</span> Adaptation of Iterative Methods to Solve Fuzzy Mathematical Programming Problems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/search?q=Ricardo%20C.%20Silva">Ricardo C. Silva</a>, <a href="https://publications.waset.org/search?q=Luiza%20A.%20P.%20Cantao"> Luiza A. P. Cantao</a>, <a href="https://publications.waset.org/search?q=Akebo%20Yamakami"> Akebo Yamakami</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Based on the fuzzy set theory this work develops two adaptations of iterative methods that solve mathematical programming problems with uncertainties in the objective function and in the set of constraints. The first one uses the approach proposed by Zimmermann to fuzzy linear programming problems as a basis and the second one obtains cut levels and later maximizes the membership function of fuzzy decision making using the bound search method. We outline similarities between the two iterative methods studied. Selected examples from the literature are presented to validate the efficiency of the methods addressed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/search?q=Fuzzy%20Theory" title="Fuzzy Theory">Fuzzy Theory</a>, <a href="https://publications.waset.org/search?q=Nonlinear%20Optimization" title=" Nonlinear Optimization"> Nonlinear Optimization</a>, <a href="https://publications.waset.org/search?q=Fuzzy%20Mathematics%20Programming." title=" Fuzzy Mathematics Programming."> Fuzzy Mathematics Programming.</a> </p> <a href="https://publications.waset.org/6547/adaptation-of-iterative-methods-to-solve-fuzzy-mathematical-programming-problems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/6547/apa" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">APA</a> <a href="https://publications.waset.org/6547/bibtex" target="_blank" rel="nofollow" class="btn btn-primary btn-sm">BibTeX</a> <a 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