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Becerra</title> <meta name="description" content="Search results for: Lucero Becerra"> <meta name="keywords" content="Lucero Becerra"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler 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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="Lucero Becerra"> <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> 21</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Lucero Becerra</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">21</span> Hybridized Simulated Annealing with Chemical Reaction Optimization for Solving to Sequence Alignment Problem</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ernesto%20Linan">Ernesto Linan</a>, <a href="https://publications.waset.org/abstracts/search?q=Linda%20Cruz"> Linda Cruz</a>, <a href="https://publications.waset.org/abstracts/search?q=Lucero%20Becerra"> Lucero Becerra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, a new hybridized algorithm based on Chemical Reaction Optimization and Simulated Annealing is proposed to solve the alignment sequence Problem. The Chemical Reaction Optimization is a population-based meta-heuristic algorithm based on the principles of a chemical reaction. Simulated Annealing is applied to solve a large number of combinatorial optimization problems of general-purpose. In this paper, we propose hybridization between Chemical Reaction Optimization algorithm and Simulated Annealing in order to solve the Sequence Alignment Problem. An initial population of molecules is defined at beginning of the proposed algorithm, where each molecule represents a sequence alignment problem. In order to simulate inter-molecule collisions, the process of Chemical Reaction is placed inside the Metropolis Cycle at certain values of temperature. Inside this cycle, change of molecules is done due to collisions; some molecules are accepted by applying Boltzmann probability. The results with the hybrid scheme are better than the results obtained separately. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemical%20reaction%20optimization" title="chemical reaction optimization">chemical reaction optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=sequence%20alignment%20problem" title=" sequence alignment problem"> sequence alignment problem</a>, <a href="https://publications.waset.org/abstracts/search?q=simulated%20annealing%20algorithm" title=" simulated annealing algorithm"> simulated annealing algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=metaheuristics" title=" metaheuristics"> metaheuristics</a> </p> <a href="https://publications.waset.org/abstracts/136324/hybridized-simulated-annealing-with-chemical-reaction-optimization-for-solving-to-sequence-alignment-problem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/136324.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">211</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">20</span> Resilient Leadership: An Analysis for Challenges, Transformation and Improvement of Organizational Climate in Gastronomic Companies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Margarita%20Santi%20Becerra%20Santiago">Margarita Santi Becerra Santiago</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The following document addresses the descriptive analysis under the qualitative approach of resilient leadership that allows us to know the importance of the application of a new leadership model to face the new challenges within the gastronomic companies in Mexico. Likewise, to know the main factors that influence resilient leaders and companies to develop new skills to elaborate strategies that contribute to overcoming adversities and managing change. Adversities in a company always exist and challenge us to move and apply our knowledge to be competitive as well as to strengthen our work team through motivation to achieve efficiency and develop in a good organizational climate. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=challenges" title="challenges">challenges</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=leadership" title=" leadership"> leadership</a>, <a href="https://publications.waset.org/abstracts/search?q=resilience%20skills" title=" resilience skills"> resilience skills</a> </p> <a href="https://publications.waset.org/abstracts/169514/resilient-leadership-an-analysis-for-challenges-transformation-and-improvement-of-organizational-climate-in-gastronomic-companies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/169514.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">76</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">19</span> Mariculture Trials of the Philippine Blue Sponge Xestospongia sp.</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Clairecynth%20Yu">Clairecynth Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Geminne%20Manzano"> Geminne Manzano</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The mariculture potential of the Philippine blue sponge, Xestospongia sp. was assessed through the pilot sponge culture in the open-sea at two different biogeographic regions in the Philippines. Thirty explants were randomly allocated for the Puerto Galera, Oriental Mindoro culture setup and the other nine were transported to Lucero, Bolinao, Pangasinan. Two different sponge culture methods of the sponge explants- the lantern and the wall method, were employed to assess the production of the Renieramycin M. Both methods have shown to be effective in growing the sponge explants and that the Thin Layer Chromatography (TLC) results have shown that Renieramycin M is present on the sponges. The effect of partial harvesting in the growth and survival rates of the blue sponge in the Puerto Galera setup was also determined. Results showed that a higher growth rate was observed on the partially harvested explants on both culture methods as compared to the unharvested explants. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chemical%20ecology" title="chemical ecology">chemical ecology</a>, <a href="https://publications.waset.org/abstracts/search?q=porifera" title=" porifera"> porifera</a>, <a href="https://publications.waset.org/abstracts/search?q=sponge" title=" sponge"> sponge</a>, <a href="https://publications.waset.org/abstracts/search?q=Xestospongia%20sp." title=" Xestospongia sp."> Xestospongia sp.</a> </p> <a href="https://publications.waset.org/abstracts/53573/mariculture-trials-of-the-philippine-blue-sponge-xestospongia-sp" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/53573.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">273</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">18</span> Development of a Catalogs System for Augmented Reality Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=J.%20Ierache">J. Ierache</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20A.%20Mangiarua"> N. A. Mangiarua</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20A.%20Bevacqua"> S. A. Bevacqua</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20N.%20Verdicchio"> N. N. Verdicchio</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20E.%20Becerra"> M. E. Becerra</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20R.%20Sanz"> D. R. Sanz</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20E.%20Sena"> M. E. Sena</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20M.%20Ortiz"> F. M. Ortiz</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20D.%20Duarte"> N. D. Duarte</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Igarza"> S. Igarza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Augmented Reality is a technology that involves the overlay of virtual content, which is context or environment sensitive, on images of the physical world in real time. This paper presents the development of a catalog system that facilitates and allows the creation, publishing, management and exploitation of augmented multimedia contents and Augmented Reality applications, creating an own space for anyone that wants to provide information to real objects in order to edit and share it then online with others. These spaces would be built for different domains without the initial need of expert users. Its operation focuses on the context of Web 2.0 or Social Web, with its various applications, developing contents to enrich the real context in which human beings act permitting the evolution of catalog’s contents in an emerging way. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=augmented%20reality" title="augmented reality">augmented reality</a>, <a href="https://publications.waset.org/abstracts/search?q=catalog%20system" title=" catalog system"> catalog system</a>, <a href="https://publications.waset.org/abstracts/search?q=computer%20graphics" title=" computer graphics"> computer graphics</a>, <a href="https://publications.waset.org/abstracts/search?q=mobile%20application" title=" mobile application"> mobile application</a> </p> <a href="https://publications.waset.org/abstracts/20787/development-of-a-catalogs-system-for-augmented-reality-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/20787.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">352</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">17</span> The Supply Chain Management and Supply Chain Responsiveness in the Competitiveness of the Agrofood Sector: An Econometric Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alma%20Lucero%20Ortiz">Alma Lucero Ortiz</a>, <a href="https://publications.waset.org/abstracts/search?q=Mario%20G%C3%B3mez"> Mario Gómez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this article is to conduct a theoretical and empirical study in order to analyze how the Supply Chain Management (SCM) and Supply Chain Responsiveness (SCR) affects the competitive advantage of the agrofood sector in 2017, in particular, the exporting companies of berries in Mexico. This work is presented in two parts, as a first part is developed a theoretical analysis of the main studies to measure the variables subject to the study. Subsequently an empirical study is carried out through field work and to process the data a logical econometric model is performed to be able to evaluate the effect of the SCM and SCR on the competitive advantage in the companies exporting berries. The results suggest that the SCM has a positive effect on the competitive advantage of the companies under study, so it is necessary to implement greater practices oriented towards a suitable SCM for the companies to achieve a competitive performance. In the case of SCR, it was found that this variable does not have effect on competitive advantage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=competitive%20advantage" title="competitive advantage">competitive advantage</a>, <a href="https://publications.waset.org/abstracts/search?q=econometric%20model" title=" econometric model"> econometric model</a>, <a href="https://publications.waset.org/abstracts/search?q=supply%20chain%20management" title=" supply chain management"> supply chain management</a>, <a href="https://publications.waset.org/abstracts/search?q=supply%20chain%20responsiveness" title=" supply chain responsiveness"> supply chain responsiveness</a>, <a href="https://publications.waset.org/abstracts/search?q=sustained%20competitive%20advantage" title=" sustained competitive advantage"> sustained competitive advantage</a> </p> <a href="https://publications.waset.org/abstracts/81552/the-supply-chain-management-and-supply-chain-responsiveness-in-the-competitiveness-of-the-agrofood-sector-an-econometric-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81552.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">238</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">16</span> Development of Cross Curricular Competences in University Classrooms: Public Speaking</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20T.%20Becerra">M. T. Becerra</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20Mart%C3%ADn"> F. Martín</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Guti%C3%A9rrez"> P. Gutiérrez</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Cubo"> S. Cubo</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Iglesias"> E. Iglesias</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20A.%20S%C3%A1enz%20del%20Castillo"> A. A. Sáenz del Castillo</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Ca%C3%B1amero"> P. Cañamero</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The consolidation of the European Higher Education Area (EHEA) in universities has led to significant changes in student training. This paper, part of a Teaching Innovation Project, starts from new training requirements that are fit within Undergraduate Thesis Project, a subject that culminate student learning. Undergraduate Thesis Project is current assessment system that weigh the student acquired training in university education. Students should develop a range of cross curricular competences such as public presentation of ideas, problems and solutions both orally and writing in Undergraduate Thesis Project. Specifically, we intend with our innovation proposal to provide resources that enable university students from Teacher Degree in Education Faculty of University of Extremadura (Spain) to develop the cross curricular competence of public speaking. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=interaction" title="interaction">interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=public%20speaking" title=" public speaking"> public speaking</a>, <a href="https://publications.waset.org/abstracts/search?q=student" title=" student"> student</a>, <a href="https://publications.waset.org/abstracts/search?q=university" title=" university"> university</a> </p> <a href="https://publications.waset.org/abstracts/8668/development-of-cross-curricular-competences-in-university-classrooms-public-speaking" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8668.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">439</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">15</span> Electrokinetics and Stability of Solder Powders in Aqueous Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Terence%20Lucero%20F.%20Menor">Terence Lucero F. Menor</a>, <a href="https://publications.waset.org/abstracts/search?q=Manolo%20G.%20Mena"> Manolo G. Mena</a>, <a href="https://publications.waset.org/abstracts/search?q=Herman%20D.%20Mendoza"> Herman D. Mendoza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solder pastes are widely used in creating mechanical, thermal and electrical connection between electronic components. Continued miniaturization of consumer electronics drives manufacturers to achieve smaller, lighter, and faster electronic packages at low cost. This faces them to the difficult challenge of dispensing solder pastes in extremely precise and repeatable manner. The most common problem in solder paste dispensing is the clogging of dispensers which results from agglomeration and settling of solder powders leading to increase on the effective particle size and uneven distribution of particles in the mixture. In this work, microelectrophoresis was employed to investigate the effect of pH and KNO₃ concentration on the electrokinetic behavior and stability of SAC305, PbSn5Ag2.5 and Sn powders in aqueous media. Results revealed that the electrokinetic behavior of the three types of solder powders are similar, which was attributed to high SnO₂ content on the surface of the particles. Electrokinetic measurements showed that the zeta potentials of the solder powders are highly dependent on pH and KNO₃ concentration with isoelectric points ranging from 3.5 to 5.5. Results were verified using stability tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrokinetic%20behavior" title="electrokinetic behavior">electrokinetic behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=isoelectric%20point" title=" isoelectric point"> isoelectric point</a>, <a href="https://publications.waset.org/abstracts/search?q=solder%20powder" title=" solder powder"> solder powder</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20analysis" title=" surface analysis"> surface analysis</a> </p> <a href="https://publications.waset.org/abstracts/74846/electrokinetics-and-stability-of-solder-powders-in-aqueous-media" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/74846.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">230</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">14</span> Smart Polymeric Nanoparticles Loaded with Vincristine Sulfate for Applications in Breast Cancer Drug Delivery in MDA-MB 231 and MCF7 Cell Lines</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Reynaldo%20Esquivel">Reynaldo Esquivel</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Hernandez"> Pedro Hernandez</a>, <a href="https://publications.waset.org/abstracts/search?q=Aaron%20Martinez-Higareda"> Aaron Martinez-Higareda</a>, <a href="https://publications.waset.org/abstracts/search?q=Sergio%20Tena-Cano"> Sergio Tena-Cano</a>, <a href="https://publications.waset.org/abstracts/search?q=Enrique%20Alvarez-Ramos"> Enrique Alvarez-Ramos</a>, <a href="https://publications.waset.org/abstracts/search?q=Armando%20Lucero-Acuna"> Armando Lucero-Acuna </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Stimuli-responsive nanomaterials play an essential role in loading, transporting and well-distribution of anti-cancer compounds in the cellular surroundings. The outstanding properties as the Lower Critical Solution Temperature (LCST), hydrolytic cleavage and protonation/deprotonation cycle, govern the release and delivery mechanisms of payloads. In this contribution, we experimentally determine the load efficiency and release of antineoplastic Vincristine Sulfate into PNIPAM-Interpenetrated-Chitosan (PIntC) nanoparticles. Structural analysis was performed by Fourier Transform Infrared Spectroscopy (FT-IR) and Proton Nuclear Magnetic Resonance (1HNMR). ζ-Potential (ζ) and Hydrodynamic diameter (DH) measurements were monitored by Electrophoretic Mobility (EM) and Dynamic Light scattering (DLS) respectively. Mathematical analysis of the release pharmacokinetics reveals a three-phase model above LCST, while a monophasic of Vincristine release model was observed at 32 °C. Cytotoxic essays reveal a noticeable enhancement of Vincristine effectiveness at low drug concentration on HeLa cervix cancer and MDA-MB-231 breast cancer. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=nanoparticles" title="nanoparticles">nanoparticles</a>, <a href="https://publications.waset.org/abstracts/search?q=vincristine" title=" vincristine"> vincristine</a>, <a href="https://publications.waset.org/abstracts/search?q=drug%20delivery" title=" drug delivery"> drug delivery</a>, <a href="https://publications.waset.org/abstracts/search?q=PNIPAM" title=" PNIPAM"> PNIPAM</a> </p> <a href="https://publications.waset.org/abstracts/90050/smart-polymeric-nanoparticles-loaded-with-vincristine-sulfate-for-applications-in-breast-cancer-drug-delivery-in-mda-mb-231-and-mcf7-cell-lines" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90050.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">156</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">13</span> Forklift Allocation in Warehouse Operations with Restricted Halls</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mauricio%20Becerra%20Fern%C3%A1ndez">Mauricio Becerra Fernández</a>, <a href="https://publications.waset.org/abstracts/search?q=Olga%20Rosana%20Romero%20Quiroga"> Olga Rosana Romero Quiroga</a>, <a href="https://publications.waset.org/abstracts/search?q=Elsa%20Cristina%20Gonz%C3%A1lez%20La%20Rotta"> Elsa Cristina González La Rotta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The logistics facilities design and construction is one of the strategic decisions that critically affects the performance of the company, from the economic perspective and relationship with customers. The case study company is the Colombian logistic sector leader, with over 60 years of experience, with sales of about one hundred twenty million dollars at the end of 2014. The preliminary design for the warehouse layout and operation includes a customer that provides approximately 17% of the profits of the company, considering the possibility of moving two forklifts in the warehouse halls. Some changes were not consider in previous stages of design, operations required forklift with different characteristics, whose size, do not allow the circulation of more than a forklift at a time. Therefore, it is necessary to assess the impact of this restriction on the warehouse operation, so decision makers implement actions to achieve efficient operation. The problem is addressed by recognizing logistics processes, which develop in a warehouse, collection of processes information behavior, the simulation of the current situation using ProModel software, model validation, making adjustments required, experiments design, conclusions and recommendations for the company. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=design" title="design">design</a>, <a href="https://publications.waset.org/abstracts/search?q=discrete%20events%20simulation" title=" discrete events simulation"> discrete events simulation</a>, <a href="https://publications.waset.org/abstracts/search?q=forklift%20allocation" title=" forklift allocation"> forklift allocation</a>, <a href="https://publications.waset.org/abstracts/search?q=logistics%20facilities" title=" logistics facilities"> logistics facilities</a>, <a href="https://publications.waset.org/abstracts/search?q=warehouse" title=" warehouse"> warehouse</a> </p> <a href="https://publications.waset.org/abstracts/41694/forklift-allocation-in-warehouse-operations-with-restricted-halls" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41694.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">303</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">12</span> Endovascular Aneurysm Repair (Evar) with Endoanchors: For Tandem Aortic Abdominal Aneurysm (Aaa) with Hostile Neck & Proximal Penetrating Atherosclerotic Ulcer </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Von%20Jerick%20Tenorio">Von Jerick Tenorio</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonald%20Lucero"> Jonald Lucero</a>, <a href="https://publications.waset.org/abstracts/search?q=Marivic%20Vestal"> Marivic Vestal</a>, <a href="https://publications.waset.org/abstracts/search?q=Edwin%20Tiempo"> Edwin Tiempo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In patients with hostile aortic neck anatomy, the risks of proximal seal complications and stent migration remain with EVAR despite improved endograft technology. This case report discusses how the technical challenges of the hostile neck anatomy, proximal penetrating atherosclerotic ulcer (PAU) and tortuous femoral access were addressed. The CT aortogram of a 63-year-old hypertensive and diabetic man with recurring abdominal discomfort revealed a fusiform infra-renal aneurysm measuring 8.8 cm in length and 5.7 cm in diameter. The proximal landing zone only has a 3 mm healthy neck with a conicity of > 10% and a thrombus of 4 mm thick. Proximal to the aneurysm is a PAU with a circumferential mural thrombus. The right femoral artery is tortuous with > 90o angulation. A 20% oversized Endurant II endograft and Aptus Heli-FX EndoAnchors were deployed as prophylaxis for type I endoleaks and endograft migration consequent to the conical neck and proximal aneurysm extension consequent to the PAU. A stiff Backup Meier guide wire facilitated the deployment of the endograft. Coil embolization of the right internal iliac artery was performed as prophylaxis for type II endoleaks. EndoAnchors can be used as an adjunct to EVAR as prophylaxis for proximal seal complications and stent migration in patients with hostile aortic aneurysm neck anatomy and concomitant proximal PAU. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=endoAnchors" title="endoAnchors">endoAnchors</a>, <a href="https://publications.waset.org/abstracts/search?q=endoleaks" title=" endoleaks"> endoleaks</a>, <a href="https://publications.waset.org/abstracts/search?q=EVAR" title=" EVAR"> EVAR</a>, <a href="https://publications.waset.org/abstracts/search?q=hostile%20neck" title=" hostile neck"> hostile neck</a> </p> <a href="https://publications.waset.org/abstracts/138396/endovascular-aneurysm-repair-evar-with-endoanchors-for-tandem-aortic-abdominal-aneurysm-aaa-with-hostile-neck-proximal-penetrating-atherosclerotic-ulcer" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138396.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">205</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">11</span> [Keynote Talk]: Three Key Ideas to Undergraduate Thesis Project Tutoring</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20T.%20Becerra-Traver">M. T. Becerra-Traver</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Montanero"> M. Montanero</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Alejo"> R. Alejo</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Ant%C3%BAnez"> A. Antúnez</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Ca%C3%B1amero"> P. Cañamero</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20J.%20Fern%C3%A1ndez"> M. J. Fernández</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20G%C3%B3mez"> M. Gómez</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20L.%20Medialdea"> A. L. Medialdea</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20D.%20Mart%C3%ADnez"> J. D. Martínez</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Piquer-P%C3%ADriz"> A. M. Piquer-Píriz</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20J.%20Rabazo"> M. J. Rabazo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The introduction of new subjects at university level, brought about with the implementation of the European Higher Education Area (EHEA), has meant changes for students and lecturers that, in the case of the latter, have also revealed a need for further training. In our context, one of the main changes has been the introduction of Undergraduate Thesis Projects (UTPs) in the degrees taught in our faculty: Pre-Primary and Primary Education. The aim of this paper is to analyze UTPs and to provide some suggestions that can help both students and lecturers in the process. UTPs complete the university training cycle of the Degree Studies and entail the elaboration of a written piece of work, supervised by a professor and presented to a panel in order to ensure that students acquire the required competences of these Degrees to develop an autonomous, responsible and comprehensive activity. In addition, UTPs develop students’ abilities for oral presentations and to defend and argue their own ideas. One of the first difficulties in the supervision of UTPs is that most of the students do not know how to write an academic text. To solve this problem, we propose a three-phase model based on planning, textualization and review. The implementation of this model has enabled us to see a successful evolution in the correct development of the academic dissertations that students submit at the end their degrees. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=academic%20task" title="academic task">academic task</a>, <a href="https://publications.waset.org/abstracts/search?q=student" title=" student"> student</a>, <a href="https://publications.waset.org/abstracts/search?q=tutoring" title=" tutoring"> tutoring</a>, <a href="https://publications.waset.org/abstracts/search?q=university" title=" university"> university</a> </p> <a href="https://publications.waset.org/abstracts/69255/keynote-talk-three-key-ideas-to-undergraduate-thesis-project-tutoring" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69255.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">264</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">10</span> Design and Integration of a Renewable Energy Based Polygeneration System with Desalination for an Industrial Plant</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lucero%20Luciano">Lucero Luciano</a>, <a href="https://publications.waset.org/abstracts/search?q=Cesar%20Celis"> Cesar Celis</a>, <a href="https://publications.waset.org/abstracts/search?q=Jose%20Ramos"> Jose Ramos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polygeneration improves energy efﬁciency and reduce both energy consumption and pollutant emissions compared to conventional generation technologies. A polygeneration system is a variation of a cogeneration one, in which more than two outputs, i.e., heat, power, cooling, water, energy or fuels, are accounted for. In particular, polygeneration systems integrating solar energy and water desalination represent promising technologies for energy production and water supply. They are therefore interesting options for coastal regions with a high solar potential, such as those located in southern Peru and northern Chile. Notice that most of the Peruvian and Chilean mining industry operations intensive in electricity and water consumption are located in these particular regions. Accordingly, this work focus on the design and integration of a polygeneration system producing industrial heating, cooling, electrical power and water for an industrial plant. The design procedure followed in this work involves integer linear programming modeling (MILP), operational planning and dynamic operating conditions. The technical and economic feasibility of integrating renewable energy technologies (photovoltaic and solar thermal, PV+CPS), thermal energy store, power and thermal exchange, absorption chillers, cogeneration heat engines and desalination technologies is particularly assessed. The polygeneration system integration carried out seek to minimize the system total annual cost subject to CO2 emissions restrictions. Particular economic aspects accounted for include investment, maintenance and operating costs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=desalination" title="desalination">desalination</a>, <a href="https://publications.waset.org/abstracts/search?q=design%20and%20integration" title=" design and integration"> design and integration</a>, <a href="https://publications.waset.org/abstracts/search?q=polygeneration%20systems" title=" polygeneration systems"> polygeneration systems</a>, <a href="https://publications.waset.org/abstracts/search?q=renewable%20energy" title=" renewable energy"> renewable energy</a> </p> <a href="https://publications.waset.org/abstracts/102064/design-and-integration-of-a-renewable-energy-based-polygeneration-system-with-desalination-for-an-industrial-plant" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102064.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">125</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">9</span> The Development of E-Commerce in Mexico: An Econometric Analysis</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alma%20Lucero%20Ortiz">Alma Lucero Ortiz</a>, <a href="https://publications.waset.org/abstracts/search?q=Mario%20Gomez"> Mario Gomez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Technological advances contribute to the well-being of humanity by allowing man to perform in a more efficient way. Technology offers tangible advantages to countries with the adoption of information technologies, communication, and the Internet in all social and productive sectors. The Internet is a networking infrastructure that allows the communication of people throughout the world, exceeding the limits of time and space. Nowadays the internet has changed the way of doing business leading to a digital economy. In this way, e-commerce has emerged as a commercial transaction conducted over the Internet. For this inquiry e-commerce is seen as a source of economic growth for the country. Thereby, these research aims to answer the research question, which are the main variables that have affected the development of e-commerce in Mexico. The research includes a period of study from 1990 to 2017. This inquiry aims to get insight on how the independent variables influence the e-commerce development. The independent variables are information infrastructure construction, urbanization level, economic level, technology level, human capital level, educational level, standards of living, and price index. The results suggest that the independent variables have an impact on development of the e-commerce in Mexico. The present study is carried out in five parts. After the introduction, in the second part, a literature review about the main qualitative and quantitative studies to measure the variables subject to the study is presented. After, an empirical study is applied through time series data, and to process the data an econometric model is performed. In the fourth part, the analysis and discussion of results are presented, and finally, some conclusions are included. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=digital%20economy" title="digital economy">digital economy</a>, <a href="https://publications.waset.org/abstracts/search?q=e-commerce" title=" e-commerce"> e-commerce</a>, <a href="https://publications.waset.org/abstracts/search?q=econometric%20model" title=" econometric model"> econometric model</a>, <a href="https://publications.waset.org/abstracts/search?q=economic%20growth" title=" economic growth"> economic growth</a>, <a href="https://publications.waset.org/abstracts/search?q=internet" title=" internet"> internet</a> </p> <a href="https://publications.waset.org/abstracts/100825/the-development-of-e-commerce-in-mexico-an-econometric-analysis" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/100825.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">239</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> An Investigation of the Use of Visible Spectrophotometric Analysis of Lead in an Herbal Tea Supplement</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salve%20Alessandria%20Alcantara">Salve Alessandria Alcantara</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Armand%20E.%20Aquino"> John Armand E. Aquino</a>, <a href="https://publications.waset.org/abstracts/search?q=Ma.%20Veronica%20Aranda"> Ma. Veronica Aranda</a>, <a href="https://publications.waset.org/abstracts/search?q=Nikki%20Francine%20Balde"> Nikki Francine Balde</a>, <a href="https://publications.waset.org/abstracts/search?q=Angeli%20Therese%20F.%20Cruz"> Angeli Therese F. Cruz</a>, <a href="https://publications.waset.org/abstracts/search?q=Elise%20Danielle%20Garcia"> Elise Danielle Garcia</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonie%20Kyna%20Lim"> Antonie Kyna Lim</a>, <a href="https://publications.waset.org/abstracts/search?q=Divina%20Gracia%20Lucero"> Divina Gracia Lucero</a>, <a href="https://publications.waset.org/abstracts/search?q=Nikolai%20Thadeus%20Mappatao"> Nikolai Thadeus Mappatao</a>, <a href="https://publications.waset.org/abstracts/search?q=Maylan%20N.%20Ocat"> Maylan N. Ocat</a>, <a href="https://publications.waset.org/abstracts/search?q=Jamille%20Dyanne%20L.%20Pajarillo"> Jamille Dyanne L. Pajarillo</a>, <a href="https://publications.waset.org/abstracts/search?q=Jane%20Mierial%20A.%20Pesigan"> Jane Mierial A. Pesigan</a>, <a href="https://publications.waset.org/abstracts/search?q=Grace%20Kristin%20Viva"> Grace Kristin Viva</a>, <a href="https://publications.waset.org/abstracts/search?q=Jasmine%20Arielle%20C.%20Yap"> Jasmine Arielle C. Yap</a>, <a href="https://publications.waset.org/abstracts/search?q=Kathleen%20Michelle%20T.%20Yu"> Kathleen Michelle T. Yu</a>, <a href="https://publications.waset.org/abstracts/search?q=Joanna%20J.%20Orejola"> Joanna J. Orejola</a>, <a href="https://publications.waset.org/abstracts/search?q=Joanna%20V.%20Toralba"> Joanna V. Toralba </a> </p> <p class="card-text"><strong>Abstract:</strong></p> Lead is a neurotoxic metallic element that is slowly accumulated in bones and tissues especially if present in products taken in a regular basis such as herbal tea supplements. Although sensitive analytical instruments are already available, the USP limit test for lead is still widely used. However, because of its serious shortcomings, Lang Lang and his colleagues developed a spectrophotometric method for determination of lead in all types of samples. This method was the one adapted in this study. The actual procedure performed was divided into three parts: digestion, extraction and analysis. For digestion, HNO3 and CH3COOH were used. Afterwards, masking agents, 0.003% and 0.001% dithizone in CHCl3 were added and used for the extraction. For the analysis, standard addition method and colorimetry were performed. This was done in triplicates under two conditions. The 1st condition, using 25µg/mL of standard, resulted to very low absorbances with an r2 of 0.551. This led to the use of a higher concentration, 1mg/mL, for condition 2. Precipitation of lead cyanide was observed and the absorbance readings were relatively higher but between 0.15-0.25, resulting to a very low r2 of 0.429. LOQ and LOD were not computed due to the limitations of the Milton-Roy Spectrophotometer. The method performed has a shorter digestion time, and used less but more accessible reagents. However, the optimum ratio of dithizone-lead complex must be observed in order to obtain reliable results while exploring other concentration of standards. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=herbal%20tea%20supplement" title="herbal tea supplement">herbal tea supplement</a>, <a href="https://publications.waset.org/abstracts/search?q=lead-dithizone%20complex" title=" lead-dithizone complex"> lead-dithizone complex</a>, <a href="https://publications.waset.org/abstracts/search?q=standard%20addition" title=" standard addition"> standard addition</a>, <a href="https://publications.waset.org/abstracts/search?q=visible%20spectroscopy" title=" visible spectroscopy"> visible spectroscopy</a> </p> <a href="https://publications.waset.org/abstracts/10463/an-investigation-of-the-use-of-visible-spectrophotometric-analysis-of-lead-in-an-herbal-tea-supplement" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10463.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">387</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7</span> Thermal Performance of an Air-Water Heat Exchanger (AWHE) Operating in Groundwater and Hot-Humid Climate</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=C%C3%A9sar%20Ram%C3%ADrez-Dolores">César Ramírez-Dolores</a>, <a href="https://publications.waset.org/abstracts/search?q=Jorge%20Wong-Loya"> Jorge Wong-Loya</a>, <a href="https://publications.waset.org/abstracts/search?q=Jorge%20Andaverde"> Jorge Andaverde</a>, <a href="https://publications.waset.org/abstracts/search?q=Caleb%20Becerra"> Caleb Becerra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Low-depth geothermal energy can take advantage of the use of the subsoil as an air conditioning technique, being used as a passive system or coupled to an active cooling and/or heating system. This source of air conditioning is possible because at a depth less than 10 meters, the subsoil temperature is practically homogeneous and tends to be constant regardless of the climatic conditions on the surface. The effect of temperature fluctuations on the soil surface decreases as depth increases due to the thermal inertia of the soil, causing temperature stability; this effect presents several advantages in the context of sustainable energy use. In the present work, the thermal behavior of a horizontal Air-Water Heat Exchanger (AWHE) is evaluated, and the thermal effectiveness and temperature of the air at the outlet of the prototype immersed in groundwater is experimentally determined. The thermohydraulic aspects of the heat exchanger were evaluated using the Number of Transfer Units-Efficiency (NTU-ε) method under conditions of groundwater flow in a coastal region of sandy soil (southeastern Mexico) and air flow induced by a blower, the system was constructed of polyvinyl chloride (PVC) and sensors were placed in both the exchanger and the water to record temperature changes. The results of this study indicate that when the exchanger operates in groundwater, it shows high thermal gains allowing better heat transfer, therefore, it significantly reduces the air temperature at the outlet of the system, which increases the thermal effectiveness of the system in values > 80%, this passive technique is relevant for building cooling applications and could represent a significant development in terms of thermal comfort for hot locations in emerging economy countries. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=convection" title="convection">convection</a>, <a href="https://publications.waset.org/abstracts/search?q=earth" title=" earth"> earth</a>, <a href="https://publications.waset.org/abstracts/search?q=geothermal%20energy" title=" geothermal energy"> geothermal energy</a>, <a href="https://publications.waset.org/abstracts/search?q=thermal%20comfort" title=" thermal comfort"> thermal comfort</a> </p> <a href="https://publications.waset.org/abstracts/177739/thermal-performance-of-an-air-water-heat-exchanger-awhe-operating-in-groundwater-and-hot-humid-climate" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177739.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">73</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6</span> Optimization of an Electro-Submersible Pump for Crude Oil Extraction Processes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Deisy%20Becerra">Deisy Becerra</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicolas%20Rios"> Nicolas Rios</a>, <a href="https://publications.waset.org/abstracts/search?q=Miguel%20Asuaje"> Miguel Asuaje</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The Electrical Submersible Pump (ESP) is one of the most artificial lifting methods used in the last years, which consists of a serial arrangement of centrifugal pumps. One of the main concerns when handling crude oil is the formation of O/W or W/O (oil/water or water/oil) emulsions inside the pump, due to the shear rate imparted and the presence of high molecular weight substances that act as natural surfactants. Therefore, it is important to perform an analysis of the flow patterns inside the pump to increase the percentage of oil recovered using the centrifugal force and the difference in density between the oil and the water to generate the separation of liquid phases. For this study, a Computational Fluid Dynamic (CFD) model was developed on STAR-CCM+ software based on 3D geometry of a Franklin Electric 4400 4' four-stage ESP. In this case, the modification of the last stage was carried out to improve the centrifugal effect inside the pump, and a perforated double tube was designed with three different holes configurations disposed at the outlet section, through which the cut water flows. The arrangement of holes used has different geometrical configurations such as circles, rectangles, and irregular shapes determined as grating around the tube. The two-phase flow was modeled using an Eulerian approach with the Volume of Fluid (VOF) method, which predicts the distribution and movement of larger interfaces in immiscible phases. Different water-oil compositions were evaluated, such as 70-30% v/v, 80-20% v/v and 90-10% v/v, respectively. Finally, greater recovery of oil was obtained. For the several compositions evaluated, the volumetric oil fraction was greater than 0.55 at the pump outlet. Similarly, it is possible to show an inversely proportional relationship between the Water/Oil rate (WOR) and the volumetric flow. The volumetric fractions evaluated, the oil flow increased approximately between 41%-10% for circular perforations and 49%-19% for rectangular shaped perforations, regarding the inlet flow. Besides, the elimination of the pump diffuser in the last stage of the pump reduced the head by approximately 20%. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computational%20fluid%20dynamic" title="computational fluid dynamic">computational fluid dynamic</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=electrical%20submersible%20pump" title=" electrical submersible pump"> electrical submersible pump</a>, <a href="https://publications.waset.org/abstracts/search?q=ESP" title=" ESP"> ESP</a>, <a href="https://publications.waset.org/abstracts/search?q=two%20phase%20flow" title=" two phase flow"> two phase flow</a>, <a href="https://publications.waset.org/abstracts/search?q=volume%20of%20fluid" title=" volume of fluid"> volume of fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=VOF" title=" VOF"> VOF</a>, <a href="https://publications.waset.org/abstracts/search?q=water%2Foil%20rate" title=" water/oil rate"> water/oil rate</a>, <a href="https://publications.waset.org/abstracts/search?q=WOR" title=" WOR"> WOR</a> </p> <a href="https://publications.waset.org/abstracts/126003/optimization-of-an-electro-submersible-pump-for-crude-oil-extraction-processes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126003.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">158</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5</span> Method for Auto-Calibrate Projector and Color-Depth Systems for Spatial Augmented Reality Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=R.%20Estrada">R. Estrada</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Henriquez"> A. Henriquez</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Becerra"> R. Becerra</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Laguna"> C. Laguna</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Spatial Augmented Reality is a variation of Augmented Reality where the Head-Mounted Display is not required. This variation of Augmented Reality is useful in cases where the need for a Head-Mounted Display itself is a limitation. To achieve this, Spatial Augmented Reality techniques substitute the technological elements of Augmented Reality; the virtual world is projected onto a physical surface. To create an interactive spatial augmented experience, the application must be aware of the spatial relations that exist between its core elements. In this case, the core elements are referred to as a projection system and an input system, and the process to achieve this spatial awareness is called system calibration. The Spatial Augmented Reality system is considered calibrated if the projected virtual world scale is similar to the real-world scale, meaning that a virtual object will maintain its perceived dimensions when projected to the real world. Also, the input system is calibrated if the application knows the relative position of a point in the projection plane and the RGB-depth sensor origin point. Any kind of projection technology can be used, light-based projectors, close-range projectors, and screens, as long as it complies with the defined constraints; the method was tested on different configurations. The proposed procedure does not rely on a physical marker, minimizing the human intervention on the process. The tests are made using a Kinect V2 as an input sensor and several projection devices. In order to test the method, the constraints defined were applied to a variety of physical configurations; once the method was executed, some variables were obtained to measure the method performance. It was demonstrated that the method obtained can solve different arrangements, giving the user a wide range of setup possibilities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=color%20depth%20sensor" title="color depth sensor">color depth sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20computer%20interface" title=" human computer interface"> human computer interface</a>, <a href="https://publications.waset.org/abstracts/search?q=interactive%20surface" title=" interactive surface"> interactive surface</a>, <a href="https://publications.waset.org/abstracts/search?q=spatial%20augmented%20reality" title=" spatial augmented reality"> spatial augmented reality</a> </p> <a href="https://publications.waset.org/abstracts/127661/method-for-auto-calibrate-projector-and-color-depth-systems-for-spatial-augmented-reality-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/127661.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">124</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> CO2 Capture in Porous Silica Assisted by Lithium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lucero%20Gonzalez">Lucero Gonzalez</a>, <a href="https://publications.waset.org/abstracts/search?q=Salvador%20Alfaro"> Salvador Alfaro</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Carbon dioxide (CO2) and methane (CH4) are considered as the compounds with higher abundance among the greenhouse gases (CO2, NOx, SOx, CxHx, etc.), due to its higher concentration, this two gases have a greater impact in the environment pollution and provokes global warming. So, recovery, disposal and subsequent reuse, are of great interest, especially from the ecological and health perspective. By one hand, porous inorganic materials are good candidates to capture gases, because these type of materials are higher stability from the point view of thermal, chemical and mechanical under adsorption gas processes. By another hand, during the design and the synthetic preparation of the porous materials is possible add other intrinsic properties (physicochemical and structural) by adding chemical compounds as dopants or using structured directed agents or surfactants to improve the porous structure, the above features allow to have alternative materials for separation, capture and storage of greenhouse gases. In this work, ordered mesoporous materials base silica were prepared using Surfynol as surfactant. The surfactant micelles are commonly used as self-assembly templates for the development of new structure porous silica’s, adding a variety of textures and structures. By another hand, the Surfynol is a commercial surfactant, is non-ionic, for that is necessary determine its critical micelles concentration (cmc) by the pyrene I1/I3 ratio method, before to prepare silica particles. One time known the CMC, a precursor gel was prepared via sol-gel process at room temperature using TEOS as silica precursor, NH4OH as catalyst, Surfynol as template and H2O as solvent. Then, the gel precursor was treatment hydrothermally in a Teflon-lined stainless steel autoclave with a volume of 100 mL and kept at 100 ºC for 24 h under static conditions in a convection oven. After that, the porous silica particles obtained were impregnated with lithium to improve the CO2 adsorption capacity. Then the silica particles were characterized physicochemical, morphology and structurally, by XRD, FTIR, BET and SEM techniques. The thermal stability and the CO2 adsorption capacity was evaluated by thermogravimetric analysis (TGA). According the results, we found that the Surfynol is a good candidate to prepare silica particles with an ordered structure. Also the TGA analysis shown that the particles has a good thermal stability in the range of 250 °C and 800 °C. The best materials had, the capacity to adsorbing 70 and 90 mg per gram of silica particles and its CO2 adsorption capacity depends on the way to thermal pretreatment of the porous silica before of the adsorption experiments and of the concentration of surfactant used during the synthesis of silica particles. Acknowledgments: This work was supported by SIP-IPN through project SIP-20161862. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=CO2%20adsorption" title="CO2 adsorption">CO2 adsorption</a>, <a href="https://publications.waset.org/abstracts/search?q=lithium%20as%20dopant" title=" lithium as dopant"> lithium as dopant</a>, <a href="https://publications.waset.org/abstracts/search?q=porous%20silica" title=" porous silica"> porous silica</a>, <a href="https://publications.waset.org/abstracts/search?q=surfynol%20as%20surfactant" title=" surfynol as surfactant"> surfynol as surfactant</a>, <a href="https://publications.waset.org/abstracts/search?q=thermogravimetric%20analysis" title=" thermogravimetric analysis"> thermogravimetric analysis</a> </p> <a href="https://publications.waset.org/abstracts/58168/co2-capture-in-porous-silica-assisted-by-lithium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/58168.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">268</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> Cellular RNA-Binding Domains with Distant Homology in Viral Proteomes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=German%20Hernandez-Alonso">German Hernandez-Alonso</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Lazcano"> Antonio Lazcano</a>, <a href="https://publications.waset.org/abstracts/search?q=Arturo%20Becerra"> Arturo Becerra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Until today, viruses remain controversial and poorly understood; about their origin, this problem represents an enigma and one of the great challenges for the contemporary biology. Three main theories have tried to explain the origin of viruses: regressive evolution, escaped host gene, and pre-cellular origin. Under the perspective of the escaped host gene theory, it can be assumed a cellular origin of viral components, like protein RNA-binding domains. These universal distributed RNA-binding domains are related to the RNA metabolism processes, including transcription, processing, and modification of transcripts, translation, RNA degradation and its regulation. In the case of viruses, these domains are present in important viral proteins like helicases, nucleases, polymerases, capsid proteins or regulation factors. Therefore, they are implicated in the replicative cycle and parasitic processes of viruses. That is why it is possible to think that those domains present low levels of divergence due to selective pressures. For these reasons, the main goal for this project is to create a catalogue of the RNA-binding domains found in all the available viral proteomes, using bioinformatics tools in order to analyze its evolutionary process, and thus shed light on the general virus evolution. ProDom database was used to obtain larger than six thousand RNA-binding domain families that belong to the three cellular domains of life and some viral groups. From the sequences of these families, protein profiles were created using HMMER 3.1 tools in order to find distant homologous within greater than four thousand viral proteomes available in GenBank. Once accomplished the analysis, almost three thousand hits were obtained in the viral proteomes. The homologous sequences were found in proteomes of the principal Baltimore viral groups, showing interesting distribution patterns that can contribute to understand the evolution of viruses and their host-virus interactions. Presence of cellular RNA-binding domains within virus proteomes seem to be explained by closed interactions between viruses and their hosts. Recruitment of these domains is advantageous for the viral fitness, allowing viruses to be adapted to the host cellular environment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bioinformatics%20tools" title="bioinformatics tools">bioinformatics tools</a>, <a href="https://publications.waset.org/abstracts/search?q=distant%20homology" title=" distant homology"> distant homology</a>, <a href="https://publications.waset.org/abstracts/search?q=RNA-binding%20domains" title=" RNA-binding domains"> RNA-binding domains</a>, <a href="https://publications.waset.org/abstracts/search?q=viral%20evolution" title=" viral evolution"> viral evolution</a> </p> <a href="https://publications.waset.org/abstracts/85324/cellular-rna-binding-domains-with-distant-homology-in-viral-proteomes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85324.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">387</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Generative Behaviors and Psychological Well-Being in Mexican Elders</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ana%20L.%20Gonzalez-Celis">Ana L. Gonzalez-Celis</a>, <a href="https://publications.waset.org/abstracts/search?q=Edgardo%20Ruiz-Carrillo"> Edgardo Ruiz-Carrillo</a>, <a href="https://publications.waset.org/abstracts/search?q=Karina%20Reyes-Jarquin"> Karina Reyes-Jarquin</a>, <a href="https://publications.waset.org/abstracts/search?q=Margarita%20Chavez-Becerra"> Margarita Chavez-Becerra</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Since recent decades, the aging has been viewed from a more positive perspective, where is not only about losses and damage, but also about being on a stage where you can enjoy life and live with well-being and quality of life. The challenge to feel better is to find those resources that seniors have. For that reason, psychological well-being has shown interest in the study of the affect and life satisfaction (hedonic well-being), while from a more recent tradition, focus on the development of capabilities and the personal growth, considering both as the main indicators of the quality of life. A resource that can be used in the later age is generativity, which refers to the ability of older people to develop and grow through activities that contribute with the improvement of the context in which they live and participate. In this way the generative interest is understood as a favourable attitude that contribute to the common benefit while strengthening and enriching the social institutions, to ensure continuity between generations and social development. On the other hand, generative behavior, differentiating from generative interest, is the expression of that attitude reflected in activities that make a social contribution and a benefit for generations to come. Hence the purpose of the research was to test if there is an association between the generative behaviour type and the psychological well-being with their dimensions. For this reason 188 Mexican adults from 60 to 94 years old (M = 69.78), 67% women, 33% men, completed two instruments: The Ryff’s Well-Being Scales to measure psychological well-being with 39 items with two dimensions (Hedonic and Eudaimonic well-being), and the Loyola’s Generative Behaviors Scale, grouped in five categories: Knowledge transmitted to the next generation, things to be remember, creativity, be productive, contribution to the community, and responsibility of other people. In addition, the socio-demographic data sheet was tested, and self-reported health status. The results indicated that the psychological well-being and its dimensions were significantly associated with the presence of generative behavior, where the level of well-being was higher when the frequency of some generative behaviour excelled; finding that the behavior with greater psychological well-being (M = 81.04, SD = 8.18) was "things to be remembered"; while with greater hedonic well-being (M = 73.39, SD = 12.19) was the behavior "responsibility of other people"; and with greater Eudaimonic well-being (M = 84.61, SD = 6.63), was the behavior "things to be remembered”. The most important findings highlight the importance of generative behaviors in adulthood, finding empirical evidence that the generativity in the last stage of life is associated with well-being. However, by finding differences in the types of generative behaviors at the level of well-being, is proposed the idea that generativity is not situated as an isolated construct, but needs other contextualized and related constructs that can simultaneously operate at different levels, taking into account the relationship between the environment and the individual, encompassing both the social and psychological dimension. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=eudaimonic%20well-being" title="eudaimonic well-being">eudaimonic well-being</a>, <a href="https://publications.waset.org/abstracts/search?q=generativity" title=" generativity"> generativity</a>, <a href="https://publications.waset.org/abstracts/search?q=hedonic%20well-being" title=" hedonic well-being"> hedonic well-being</a>, <a href="https://publications.waset.org/abstracts/search?q=Mexican%20elders" title=" Mexican elders"> Mexican elders</a>, <a href="https://publications.waset.org/abstracts/search?q=psychological%20well-being" title=" psychological well-being"> psychological well-being</a> </p> <a href="https://publications.waset.org/abstracts/65012/generative-behaviors-and-psychological-well-being-in-mexican-elders" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/65012.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">273</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Experimental and Computational Fluid Dynamic Modeling of a Progressing Cavity Pump Handling Newtonian Fluids</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Deisy%20Becerra">Deisy Becerra</a>, <a href="https://publications.waset.org/abstracts/search?q=Edwar%20Perez"> Edwar Perez</a>, <a href="https://publications.waset.org/abstracts/search?q=Nicolas%20Rios"> Nicolas Rios</a>, <a href="https://publications.waset.org/abstracts/search?q=Miguel%20Asuaje"> Miguel Asuaje</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Progressing Cavity Pump (PCP) is a type of positive displacement pump that is being awarded greater importance as capable artificial lift equipment in the heavy oil field. The most commonly PCP used is driven single lobe pump that consists of a single external helical rotor turning eccentrically inside a double internal helical stator. This type of pump was analyzed by the experimental and Computational Fluid Dynamic (CFD) approach from the DCAB031 model located in a closed-loop arrangement. Experimental measurements were taken to determine the pressure rise and flow rate with a flow control valve installed at the outlet of the pump. The flowrate handled was measured by a FLOMEC-OM025 oval gear flowmeter. For each flowrate considered, the pump’s rotational speed and power input were controlled using an Invertek Optidrive E3 frequency driver. Once a steady-state operation was attained, pressure rise measurements were taken with a Sper Scientific wide range digital pressure meter. In this study, water and three Newtonian oils of different viscosities were tested at different rotational speeds. The CFD model implementation was developed on Star- CCM+ using an Overset Mesh that includes the relative motion between rotor and stator, which is one of the main contributions of the present work. The simulations are capable of providing detailed information about the pressure and velocity fields inside the device in laminar and unsteady regimens. The simulations have a good agreement with the experimental data due to Mean Squared Error (MSE) in under 21%, and the Grid Convergence Index (GCI) was calculated for the validation of the mesh, obtaining a value of 2.5%. In this case, three different rotational speeds were evaluated (200, 300, 400 rpm), and it is possible to show a directly proportional relationship between the rotational speed of the rotor and the flow rate calculated. The maximum production rates for the different speeds for water were 3.8 GPM, 4.3 GPM, and 6.1 GPM; also, for the oil tested were 1.8 GPM, 2.5 GPM, 3.8 GPM, respectively. Likewise, an inversely proportional relationship between the viscosity of the fluid and pump performance was observed, since the viscous oils showed the lowest pressure increase and the lowest volumetric flow pumped, with a degradation around of 30% of the pressure rise, between performance curves. Finally, the Productivity Index (PI) remained approximately constant for the different speeds evaluated; however, between fluids exist a diminution due to the viscosity. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=computational%20fluid%20dynamic" title="computational fluid dynamic">computational fluid dynamic</a>, <a href="https://publications.waset.org/abstracts/search?q=CFD" title=" CFD"> CFD</a>, <a href="https://publications.waset.org/abstracts/search?q=Newtonian%20fluids" title=" Newtonian fluids"> Newtonian fluids</a>, <a href="https://publications.waset.org/abstracts/search?q=overset%20mesh" title=" overset mesh"> overset mesh</a>, <a href="https://publications.waset.org/abstracts/search?q=PCP%20pressure%20rise" title=" PCP pressure rise"> PCP pressure rise</a> </p> <a href="https://publications.waset.org/abstracts/126006/experimental-and-computational-fluid-dynamic-modeling-of-a-progressing-cavity-pump-handling-newtonian-fluids" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/126006.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">128</span> </span> </div> </div> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational 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