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Daliberto Frugoli</title> <meta name="description" content="Search results for: Alexandre Daliberto Frugoli"> <meta name="keywords" content="Alexandre Daliberto Frugoli"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Alexandre Daliberto Frugoli"> <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> 73</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Alexandre Daliberto Frugoli</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">73</span> A Low Cost Education Proposal Using Strain Gauges and Arduino to Develop a Balance</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thais%20Cavalheri%20Santos">Thais Cavalheri Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Jose%20Gabriel%20Ferreira"> Pedro Jose Gabriel Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Daliberto%20Frugoli"> Alexandre Daliberto Frugoli</a>, <a href="https://publications.waset.org/abstracts/search?q=Lucio%20Leonardo"> Lucio Leonardo</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Americo%20Frugoli"> Pedro Americo Frugoli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a low cost education proposal to be used in engineering courses. The engineering education in universities of a developing country that is in need of an increasing number of engineers carried out with quality and affordably, pose a difficult problem to solve. In Brazil, the political and economic scenario requires academic managers able to reduce costs without compromising the quality of education. Within this context, the elaboration of a physics principles teaching method with the construction of an electronic balance is proposed. First, a method to develop and construct a load cell through which the students can understand the physical principle of strain gauges and bridge circuit will be proposed. The load cell structure was made with aluminum 6351T6, in dimensions of 80 mm x 13 mm x 13 mm and for its instrumentation, a complete Wheatstone Bridge was assembled with strain gauges of 350 ohms. Additionally, the process involves the use of a software tool to document the prototypes (design circuits), the conditioning of the signal, a microcontroller, C language programming as well as the development of the prototype. The project also intends to use an open-source I/O board (Arduino Microcontroller). To design the circuit, the Fritizing software will be used and, to program the controller, an open-source software named IDE®. A load cell was chosen because strain gauges have accuracy and their use has several applications in the industry. A prototype was developed for this study, and it confirmed the affordability of this educational idea. Furthermore, the goal of this proposal is to motivate the students to understand the several possible applications in high technology of the use of load cells and microcontroller. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Arduino" title="Arduino">Arduino</a>, <a href="https://publications.waset.org/abstracts/search?q=load%20cell" title=" load cell"> load cell</a>, <a href="https://publications.waset.org/abstracts/search?q=low-cost%20education" title=" low-cost education"> low-cost education</a>, <a href="https://publications.waset.org/abstracts/search?q=strain%20gauge" title=" strain gauge"> strain gauge</a> </p> <a href="https://publications.waset.org/abstracts/51943/a-low-cost-education-proposal-using-strain-gauges-and-arduino-to-develop-a-balance" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51943.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">72</span> Enhancing Engineering Students Educational Experience: Studying Hydrostatic Pumps Association System in Fluid Mechanics Laboratories</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Daliberto%20Frugoli">Alexandre Daliberto Frugoli</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Jose%20Gabriel%20Ferreira"> Pedro Jose Gabriel Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Americo%20Frugoli"> Pedro Americo Frugoli</a>, <a href="https://publications.waset.org/abstracts/search?q=Lucio%20Leonardo"> Lucio Leonardo</a>, <a href="https://publications.waset.org/abstracts/search?q=Thais%20Cavalheri%20Santos"> Thais Cavalheri Santos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Laboratory classes in Engineering courses are essential for students to be able to integrate theory with practical reality, by handling equipment and observing experiments. In the researches of physical phenomena, students can learn about the complexities of science. Over the past years, universities in developing countries have been reducing the course load of engineering courses, in accordance with cutting cost agendas. Quality education is the object of study for researchers and requires educators and educational administrators able to demonstrate that the institutions are able to provide great learning opportunities at reasonable costs. Didactic test benches are indispensable equipment in educational activities related to turbo hydraulic pumps and pumping facilities study, which have a high cost and require long class time due to measurements and equipment adjustment time. In order to overcome the aforementioned obstacles, aligned with the professional objectives of an engineer, GruPEFE - UNIP (Research Group in Physics Education for Engineering - Universidade Paulista) has developed a multi-purpose stand for the discipline of fluid mechanics which allows the study of velocity and flow meters, loads losses and pump association. In this work, results obtained by the association in series and in parallel of hydraulic pumps will be presented and discussed, mainly analyzing the repeatability of experimental procedures and their agreement with the theory. For the association in series two identical pumps were used, consisting of the connection of the discharge of a pump to the suction of the next one, allowing the fluid to receive the power of all machines in the association. The characteristic curve of the set is obtained from the curves of each of the pumps, by adding the heads corresponding to the same flow rates. The same pumps were associated in parallel. In this association, the discharge piping is common to the two machines together. The characteristic curve of the set was obtained by adding to each value of H (head height), the flow rates of each pump. For the tests, the input and output pressure of each pump were measured. For each set there were three sets of measurements, varying the flow rate in range from 6.0 to 8.5 m 3 / h. For the two associations, the results showed an excellent repeatability with variations of less than 10% between sets of measurements and also a good agreement with the theory. This variation agrees with the instrumental uncertainty. Thus, the results validate the use of the fluids bench designed for didactic purposes. As a future work, a digital acquisition system is being developed, using differential sensors of extremely low pressures (2 to 2000 Pa approximately) for the microcontroller Arduino. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=engineering%20education" title="engineering education">engineering education</a>, <a href="https://publications.waset.org/abstracts/search?q=fluid%20mechanics" title=" fluid mechanics"> fluid mechanics</a>, <a href="https://publications.waset.org/abstracts/search?q=hydrostatic%20pumps%20association" title=" hydrostatic pumps association"> hydrostatic pumps association</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-purpose%20stand" title=" multi-purpose stand"> multi-purpose stand</a> </p> <a href="https://publications.waset.org/abstracts/51945/enhancing-engineering-students-educational-experience-studying-hydrostatic-pumps-association-system-in-fluid-mechanics-laboratories" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51945.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">220</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">71</span> Affordable Aerodynamic Balance for Instrumentation in a Wind Tunnel Using Arduino</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Ferreira">Pedro Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Frugoli"> Alexandre Frugoli</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Frugoli"> Pedro Frugoli</a>, <a href="https://publications.waset.org/abstracts/search?q=Lucio%20Leonardo"> Lucio Leonardo</a>, <a href="https://publications.waset.org/abstracts/search?q=Thais%20Cavalheri"> Thais Cavalheri</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The teaching of fluid mechanics in engineering courses is, in general, a source of great difficulties for learning. The possibility of the use of experiments with didactic wind tunnels can facilitate the education of future professionals. The objective of this proposal is the development of a low-cost aerodynamic balance to be used in a didactic wind tunnel. The set is comprised of an Arduino microcontroller, programmed by an open source software, linked to load cells built by students from another project. The didactic wind tunnel is 5,0m long and the test area is 90,0 cm x 90,0 cm x 150,0 cm. The Weq® electric motor, model W-22 of 9,2 HP, moves a fan with nine blades, each blade 32,0 cm long. The Weq® frequency inverter, model WEGCFW 08 (Vector Inverter) is responsible for wind speed control and also for the motor inversion of the rotational direction. A flat-convex profile prototype of airfoil was tested by measuring the drag and lift forces for certain attack angles; the air flux conditions remained constant, monitored by a Pitot tube connected to a EXTECH® Instruments digital pressure differential manometer Model HD755. The results indicate a good agreement with the theory. The choice of all of the components of this proposal resulted in a low-cost product providing a high level of specific knowledge of mechanics of fluids, which may be a good alternative to teaching in countries with scarce educational resources. The system also allows the expansion to measure other parameters like fluid velocity, temperature, pressure as well as the possibility of automation of other functions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aerodynamic%20balance" title="aerodynamic balance">aerodynamic balance</a>, <a href="https://publications.waset.org/abstracts/search?q=wind%20tunnel" title=" wind tunnel"> wind tunnel</a>, <a href="https://publications.waset.org/abstracts/search?q=strain%20gauge" title=" strain gauge"> strain gauge</a>, <a href="https://publications.waset.org/abstracts/search?q=load%20cell" title=" load cell"> load cell</a>, <a href="https://publications.waset.org/abstracts/search?q=Arduino" title=" Arduino"> Arduino</a>, <a href="https://publications.waset.org/abstracts/search?q=low-cost%20education" title=" low-cost education"> low-cost education</a> </p> <a href="https://publications.waset.org/abstracts/51909/affordable-aerodynamic-balance-for-instrumentation-in-a-wind-tunnel-using-arduino" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51909.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">444</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">70</span> A Model for Operating Rooms Scheduling</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jose%20Francisco%20Ferreira%20Ribeiro">Jose Francisco Ferreira Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Bevilacqua%20Leoneti"> Alexandre Bevilacqua Leoneti</a>, <a href="https://publications.waset.org/abstracts/search?q=Andre%20Lucirton%20Costa"> Andre Lucirton Costa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents a mathematical model in binary variables 0/1 to make the assignment of surgical procedures to the operating rooms in a hospital. The proposed mathematical model is based on the generalized assignment problem, which maximizes the sum of preferences for the use of the operating rooms by doctors, respecting the time available in each room. The corresponding program was written in Visual Basic of Microsoft Excel, and tested to schedule surgeries at St. Lydia Hospital in Ribeirao Preto, Brazil. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=generalized%20assignment%20problem" title="generalized assignment problem">generalized assignment problem</a>, <a href="https://publications.waset.org/abstracts/search?q=logistics" title=" logistics"> logistics</a>, <a href="https://publications.waset.org/abstracts/search?q=optimization" title=" optimization"> optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=scheduling" title=" scheduling"> scheduling</a> </p> <a href="https://publications.waset.org/abstracts/70814/a-model-for-operating-rooms-scheduling" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/70814.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">292</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">69</span> A Quadcopter Stability Analysis: A Case Study Using Simulation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=C.%20S.%20Bianca%20Sabrina">C. S. Bianca Sabrina</a>, <a href="https://publications.waset.org/abstracts/search?q=N.%20Egidio%20Raimundo"> N. Egidio Raimundo</a>, <a href="https://publications.waset.org/abstracts/search?q=L.%20Alexandre%20Baratella"> L. Alexandre Baratella</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20H.%20Jo%C3%A3o%20Paulo"> C. H. João Paulo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper aims to present a study, with the theoretical concepts and applications of the Quadcopter, using the MATLAB simulator. In order to use this tool, the study of the stability of the drone through a Proportional - Integral - Derivative (PID) controller will be presented. After the stability study, some tests are done on the simulator and its results will be presented. From the mathematical model, it is possible to find the Newton-Euler angles, so that it is possible to stabilize the quadcopter in a certain position in the air, starting from the ground. In order to understand the impact of the controllers gain values on the stabilization of the Euler-Newton angles, three conditions will be tested with different controller gain values. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=controllers" title="controllers">controllers</a>, <a href="https://publications.waset.org/abstracts/search?q=drones" title=" drones"> drones</a>, <a href="https://publications.waset.org/abstracts/search?q=quadcopter" title=" quadcopter"> quadcopter</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a> </p> <a href="https://publications.waset.org/abstracts/129262/a-quadcopter-stability-analysis-a-case-study-using-simulation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/129262.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">199</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">68</span> Envisioning Process in Medium Enterprises: An Exploratory Study of Cambodian Living Arts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20B%C3%A9dard">Alexandre Bédard</a>, <a href="https://publications.waset.org/abstracts/search?q=Caroline%20Coulombe"> Caroline Coulombe</a>, <a href="https://publications.waset.org/abstracts/search?q=Jonathan%20Harvey"> Jonathan Harvey</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Envisioning process (EP) in medium enterprises is treated equally in very small enterprises. Building on the concept of social construction, this study aims to explore how envisioning is constructed in a medium enterprise in which stakeholders are involved and how it is influenced. We use a unique case method based on qualitative data collected through 11 interviews representing various members of the organization. Through the discussion of the findings, we were able to confirm the social construction of the EP and to identify three main stakeholders responsible for the construction of the vision, mainly political and social powers, actors of the organization, and financial providers. Moreover, EP is influenced by external factors; in this case, the history of the organization and the value and importance of the art and the culture for Cambodians. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=envisioning%20process" title="envisioning process">envisioning process</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20constructivism" title=" social constructivism"> social constructivism</a>, <a href="https://publications.waset.org/abstracts/search?q=medium%20enterprise" title=" medium enterprise"> medium enterprise</a>, <a href="https://publications.waset.org/abstracts/search?q=legitimacy" title=" legitimacy"> legitimacy</a> </p> <a href="https://publications.waset.org/abstracts/161871/envisioning-process-in-medium-enterprises-an-exploratory-study-of-cambodian-living-arts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/161871.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">119</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">67</span> Protein Tertiary Structure Prediction by a Multiobjective Optimization and Neural Network Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Barbosa%20de%20Almeida">Alexandre Barbosa de Almeida</a>, <a href="https://publications.waset.org/abstracts/search?q=Telma%20Woerle%20de%20Lima%20Soares"> Telma Woerle de Lima Soares</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Protein structure prediction is a challenging task in the bioinformatics field. The biological function of all proteins majorly relies on the shape of their three-dimensional conformational structure, but less than 1% of all known proteins in the world have their structure solved. This work proposes a deep learning model to address this problem, attempting to predict some aspects of the protein conformations. Throughout a process of multiobjective dominance, a recurrent neural network was trained to abstract the particular bias of each individual multiobjective algorithm, generating a heuristic that could be useful to predict some of the relevant aspects of the three-dimensional conformation process formation, known as protein folding. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ab%20initio%20heuristic%20modeling" title="Ab initio heuristic modeling">Ab initio heuristic modeling</a>, <a href="https://publications.waset.org/abstracts/search?q=multiobjective%20optimization" title=" multiobjective optimization"> multiobjective optimization</a>, <a href="https://publications.waset.org/abstracts/search?q=protein%20structure%20prediction" title=" protein structure prediction"> protein structure prediction</a>, <a href="https://publications.waset.org/abstracts/search?q=recurrent%20neural%20network" title=" recurrent neural network"> recurrent neural network</a> </p> <a href="https://publications.waset.org/abstracts/141565/protein-tertiary-structure-prediction-by-a-multiobjective-optimization-and-neural-network-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/141565.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">66</span> Memetic Algorithm for Solving the One-To-One Shortest Path Problem</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Omar%20Dib">Omar Dib</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Caminada"> Alexandre Caminada</a>, <a href="https://publications.waset.org/abstracts/search?q=Marie-Ange%20Manier"> Marie-Ange Manier</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The purpose of this study is to introduce a novel approach to solve the one-to-one shortest path problem. A directed connected graph is assumed in which all edges’ weights are positive. Our method is based on a memetic algorithm in which we combine a genetic algorithm (GA) and a variable neighborhood search method (VNS). We compare our approximate method with two exact algorithms Dijkstra and Integer Programming (IP). We made experimentations using random generated, complete and real graph instances. In most case studies, numerical results show that our method outperforms exact methods with 5% average gap to the optimality. Our algorithm’s average speed is 20-times faster than Dijkstra and more than 1000-times compared to IP. The details of the experimental results are also discussed and presented in the paper. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=shortest%20path%20problem" title="shortest path problem">shortest path problem</a>, <a href="https://publications.waset.org/abstracts/search?q=Dijkstra%E2%80%99s%20algorithm" title=" Dijkstra’s algorithm"> Dijkstra’s algorithm</a>, <a href="https://publications.waset.org/abstracts/search?q=integer%20programming" title=" integer programming"> integer programming</a>, <a href="https://publications.waset.org/abstracts/search?q=memetic%20algorithm" title=" memetic algorithm"> memetic algorithm</a> </p> <a href="https://publications.waset.org/abstracts/25629/memetic-algorithm-for-solving-the-one-to-one-shortest-path-problem" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/25629.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">466</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">65</span> Magnetic Fluctuations in the Terrestrial Magnetosheath</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Gurchumelia">Alexandre Gurchumelia</a>, <a href="https://publications.waset.org/abstracts/search?q=Luca%20Sorriso-Valvo"> Luca Sorriso-Valvo</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20Burgess"> David Burgess</a>, <a href="https://publications.waset.org/abstracts/search?q=Khatuna%20Elbakidze"> Khatuna Elbakidze</a>, <a href="https://publications.waset.org/abstracts/search?q=Oleg%20Kharshiladze"> Oleg Kharshiladze</a>, <a href="https://publications.waset.org/abstracts/search?q=Diana%20Kvaratskhelia"> Diana Kvaratskhelia</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The terrestrial magnetosheath is a highly turbulent medium, with a high level of magnetic1field fluctuations throughout a broad range of scales. These often include an inertial range where a2magnetohydrodynamic turbulent cascade is observed. The multifractal properties of the turbulent3cascade, strictly related to intermittency, are observed here during the transition from quasi-parallel to4quasi-perpendicular magnetic field with respect to the bow-shock normal. The different multifractal5behavior in the two regions is analyzed. A standard coarse-graining technique has been used6to evaluate the generalized dimensions and the corresponding multifractal spectrumf(α). A7p-model fit provided a quantitative measure of multifractality and intermittency, to be compared with8standard indicators: the width of the multifractal spectrum, the peak of the kurtosis, and its scaling9exponent. Results show a clear transition and sharp differences in the intermittency properties for the two regions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnetos%20heath" title="magnetos heath">magnetos heath</a>, <a href="https://publications.waset.org/abstracts/search?q=turbulence" title=" turbulence"> turbulence</a>, <a href="https://publications.waset.org/abstracts/search?q=multifractal" title=" multifractal"> multifractal</a>, <a href="https://publications.waset.org/abstracts/search?q=instabilities" title=" instabilities"> instabilities</a> </p> <a href="https://publications.waset.org/abstracts/143455/magnetic-fluctuations-in-the-terrestrial-magnetosheath" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143455.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">181</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">64</span> Psychosocial Processes and Strategies behind Islamic Deradicalisation: A Scoping Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Carvalho%20M.%20Catia">Carvalho M. Catia</a>, <a href="https://publications.waset.org/abstracts/search?q=Pinto%20R.%20Isabel"> Pinto R. Isabel</a>, <a href="https://publications.waset.org/abstracts/search?q=Azevedo%20F.%20Luis"> Azevedo F. Luis</a>, <a href="https://publications.waset.org/abstracts/search?q=Guerreiro"> Guerreiro</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20Alexandre"> T. Alexandre</a>, <a href="https://publications.waset.org/abstracts/search?q=Barbosa%20R.%20Mariana"> Barbosa R. Mariana</a>, <a href="https://publications.waset.org/abstracts/search?q=Pinto%20S.%20Marta"> Pinto S. Marta</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the loss of territory, foreign terrorist fighters who have joined Islamic State are returning to their home countries. In order to counter this threat to international security, it is important to implement deradicalisation programmes, through strategies and processes that can reverse radicalisation. The objectives of this scoping review - which is underway - are to provide a comprehensive overview of the programmes being implemented, its main characteristics, the main motives and processes leading to deradicalisation, and to identify the key findings and the existing gaps in the literature. The methodology to be implemented in this scoping review follows the guidelines proposed by Arksey and O’Malley and by The Joanna Briggs Institute. The main results will be the development of a synthesis map of the deradicalisation programmes existing in the world, its main features, and recommendations to policy-makers and professionals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=deradicalisation%20strategies" title="deradicalisation strategies">deradicalisation strategies</a>, <a href="https://publications.waset.org/abstracts/search?q=psychosocial%20processes" title=" psychosocial processes"> psychosocial processes</a>, <a href="https://publications.waset.org/abstracts/search?q=radicalisation" title=" radicalisation"> radicalisation</a>, <a href="https://publications.waset.org/abstracts/search?q=terrorism" title=" terrorism"> terrorism</a> </p> <a href="https://publications.waset.org/abstracts/85410/psychosocial-processes-and-strategies-behind-islamic-deradicalisation-a-scoping-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/85410.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">389</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">63</span> Generating 3D Anisotropic Centroidal Voronoi Tessellations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Marin">Alexandre Marin</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandra%20Bac"> Alexandra Bac</a>, <a href="https://publications.waset.org/abstracts/search?q=Laurent%20Astart"> Laurent Astart</a> </p> <p class="card-text"><strong>Abstract:</strong></p> New numerical methods for PDE resolution (such as Finite Volumes (FV) or Virtual Elements Method (VEM)) open new needs in terms of meshing of domains of interest, and in particular, polyhedral meshes have many advantages. One way to build such meshes consists of constructing Restricted Voronoi Diagrams (RVDs) whose boundaries respect the domain of interest. By minimizing a function defined for RVDs, the shapes of cells can be controlled, e.g., elongated according to user-defined directions or adjusted to comply with given aspect ratios (anisotropy) and density variations. In this paper, our contribution is threefold: First, we introduce a new gradient formula for the Voronoi tessellation energy under a continuous anisotropy field. Second, we describe a meshing algorithm based on the optimisation of this function that we validate against state-of-the-art approaches. Finally, we propose a hierarchical approach to speed up our meshing algorithm. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=anisotropic%20Voronoi%20diagrams" title="anisotropic Voronoi diagrams">anisotropic Voronoi diagrams</a>, <a href="https://publications.waset.org/abstracts/search?q=meshes%20for%20numerical%20simulations" title=" meshes for numerical simulations"> meshes for numerical simulations</a>, <a href="https://publications.waset.org/abstracts/search?q=optimisation" title=" optimisation"> optimisation</a>, <a href="https://publications.waset.org/abstracts/search?q=volumic%20polyhedral%20meshing" title=" volumic polyhedral meshing"> volumic polyhedral meshing</a> </p> <a href="https://publications.waset.org/abstracts/172242/generating-3d-anisotropic-centroidal-voronoi-tessellations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172242.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">115</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">62</span> Fast Short-Term Electrical Load Forecasting under High Meteorological Variability with a Multiple Equation Time Series Approach</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Charline%20David">Charline David</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Blondin%20Mass%C3%A9"> Alexandre Blondin Massé</a>, <a href="https://publications.waset.org/abstracts/search?q=Arnaud%20Zinflou"> Arnaud Zinflou</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In 2016, Clements, Hurn, and Li proposed a multiple equation time series approach for the short-term load forecasting, reporting an average mean absolute percentage error (MAPE) of 1.36% on an 11-years dataset for the Queensland region in Australia. We present an adaptation of their model to the electrical power load consumption for the whole Quebec province in Canada. More precisely, we take into account two additional meteorological variables — cloudiness and wind speed — on top of temperature, as well as the use of multiple meteorological measurements taken at different locations on the territory. We also consider other minor improvements. Our final model shows an average MAPE score of 1:79% over an 8-years dataset. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=short-term%20load%20forecasting" title="short-term load forecasting">short-term load forecasting</a>, <a href="https://publications.waset.org/abstracts/search?q=special%20days" title=" special days"> special days</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20series" title=" time series"> time series</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20equations" title=" multiple equations"> multiple equations</a>, <a href="https://publications.waset.org/abstracts/search?q=parallelization" title=" parallelization"> parallelization</a>, <a href="https://publications.waset.org/abstracts/search?q=clustering" title=" clustering"> clustering</a> </p> <a href="https://publications.waset.org/abstracts/153451/fast-short-term-electrical-load-forecasting-under-high-meteorological-variability-with-a-multiple-equation-time-series-approach" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153451.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">103</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">61</span> Patient-Specific Modeling Algorithm for Medical Data Based on AUC</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Guilherme%20Ribeiro">Guilherme Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Oliveira"> Alexandre Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Ferreira"> Antonio Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Shyam%20Visweswaran"> Shyam Visweswaran</a>, <a href="https://publications.waset.org/abstracts/search?q=Gregory%20Cooper"> Gregory Cooper</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Patient-specific models are instance-based learning algorithms that take advantage of the particular features of the patient case at hand to predict an outcome. We introduce two patient-specific algorithms based on decision tree paradigm that use AUC as a metric to select an attribute. We apply the patient specific algorithms to predict outcomes in several datasets, including medical datasets. Compared to the patient-specific decision path (PSDP) entropy-based and CART methods, the AUC-based patient-specific decision path models performed equivalently on area under the ROC curve (AUC). Our results provide support for patient-specific methods being a promising approach for making clinical predictions. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=approach%20instance-based" title="approach instance-based">approach instance-based</a>, <a href="https://publications.waset.org/abstracts/search?q=area%20under%20the%20ROC%20curve" title=" area under the ROC curve"> area under the ROC curve</a>, <a href="https://publications.waset.org/abstracts/search?q=patient-specific%20decision%20path" title=" patient-specific decision path"> patient-specific decision path</a>, <a href="https://publications.waset.org/abstracts/search?q=clinical%20predictions" title=" clinical predictions"> clinical predictions</a> </p> <a href="https://publications.waset.org/abstracts/35519/patient-specific-modeling-algorithm-for-medical-data-based-on-auc" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35519.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">479</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">60</span> Institutional Capacity and Corruption: Evidence from Brazil </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dalson%20Figueiredo">Dalson Figueiredo</a>, <a href="https://publications.waset.org/abstracts/search?q=Enivaldo%20Rocha"> Enivaldo Rocha</a>, <a href="https://publications.waset.org/abstracts/search?q=Ranulfo%20Paranhos"> Ranulfo Paranhos</a>, <a href="https://publications.waset.org/abstracts/search?q=Jos%C3%A9%20Alexandre"> José Alexandre</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper analyzes the effects of institutional capacity on corruption. Methodologically, the research design combines both descriptive and multivariate statistics to examine two original datasets based on secondary data. In particular, we employ a principal component model to estimate an indicator of institutional capacity for both state audit institutions and subnational judiciary courts. Then, we estimate the effect of institutional capacity on two dependent variables: (1) incidence of administrative irregularities and (2) time elapsed to judge corruption cases. The preliminary results using ordinary least squares, negative binomial and Tobit models suggest the same conclusions: higher the institutional audit capacity, higher is the probability of detecting a corruption case. On the other hand, higher the institutional capacity of state judiciary, the lower is the time to judge corruption cases. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=institutional%20capacity" title="institutional capacity">institutional capacity</a>, <a href="https://publications.waset.org/abstracts/search?q=corruption" title=" corruption"> corruption</a>, <a href="https://publications.waset.org/abstracts/search?q=state%20level%20institutions" title=" state level institutions"> state level institutions</a>, <a href="https://publications.waset.org/abstracts/search?q=evidence%20from%20Brazil" title=" evidence from Brazil "> evidence from Brazil </a> </p> <a href="https://publications.waset.org/abstracts/15940/institutional-capacity-and-corruption-evidence-from-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/15940.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">372</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">59</span> Selective Solvent Extraction of Calcium and Magnesium from Concentrate Nickel Solutions Using Mixtures of Cyanex 272 and D2EHPA</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20S.%20Guimar%C3%A3es">Alexandre S. Guimarães</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcelo%20B.%20Mansur"> Marcelo B. Mansur</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The performance of organophosphorus extractants Cyanex 272 and D2EHPA on the purification of concentrate nickel sulfate solutions was evaluated. Batch scale tests were carried out at pH range of 2 to 7 using a laboratory solution simulating concentrate nickel liquors as those typically obtained when sulfate intermediates from nickel laterite are re-leached and treated for the selective removal of cobalt, zinc, manganese and copper with Cyanex 272 ([Ca] = 0.57 g/L, [Mg] = 3.2 g/L, and [Ni] = 88 g/L). The increase on the concentration of D2EHPA favored the calcium extraction. The extraction of magnesium is dependent on the pH and of ratio of extractants D2EHPA and Cyanex 272 in the organic phase. The composition of the investigated organic phase did not affect nickel extraction. The number of stages is dependent on the magnesium extraction. The most favorable operating condition to selectively remove calcium and magnesium was determined. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=solvent%20extraction" title="solvent extraction">solvent extraction</a>, <a href="https://publications.waset.org/abstracts/search?q=organophosphorus%20extractants" title=" organophosphorus extractants"> organophosphorus extractants</a>, <a href="https://publications.waset.org/abstracts/search?q=alkaline%20earth%20metals" title=" alkaline earth metals"> alkaline earth metals</a>, <a href="https://publications.waset.org/abstracts/search?q=nickel" title=" nickel"> nickel</a> </p> <a href="https://publications.waset.org/abstracts/41602/selective-solvent-extraction-of-calcium-and-magnesium-from-concentrate-nickel-solutions-using-mixtures-of-cyanex-272-and-d2ehpa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/41602.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">524</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">58</span> Analysis of the Volatile Organic Compounds of Tillandsia Flowers by HS-SPME/GC-MS</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Gonzalez">Alexandre Gonzalez</a>, <a href="https://publications.waset.org/abstracts/search?q=Zohra%20Benfodda"> Zohra Benfodda</a>, <a href="https://publications.waset.org/abstracts/search?q=David%20B%C3%A9nim%C3%A9lis"> David Bénimélis</a>, <a href="https://publications.waset.org/abstracts/search?q=Jean-Xavier%20Fontaine"> Jean-Xavier Fontaine</a>, <a href="https://publications.waset.org/abstracts/search?q=Roland%20Molini%C3%A9"> Roland Molinié</a>, <a href="https://publications.waset.org/abstracts/search?q=Patrick%20Meffre"> Patrick Meffre</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Volatile organic compounds (VOCs) emitted by flowers play an important role in plant ecology. However, the Tillandsia genus has been scarcely studied according to the VOCs emitted by flowers. Tillandsia are epiphytic flowering plants belonging to the Bromeliaceae family. The VOCs composition of twelve unscented and two faint-scented Tillandsia species was studied. The headspace solid phase microextraction coupled with gas chromatography combined with mass spectrometry method was used to explore the chemical diversity of the VOCs. This study allowed the identification of 65 VOCs among the fourteen species, and between six to twenty-five compounds were identified in each of the species. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tillandsia" title="tillandsia">tillandsia</a>, <a href="https://publications.waset.org/abstracts/search?q=headspace%20solid%20phase%20microextraction%20%28HS-SPME%29" title=" headspace solid phase microextraction (HS-SPME)"> headspace solid phase microextraction (HS-SPME)</a>, <a href="https://publications.waset.org/abstracts/search?q=gas%20chromatography-mass%20spectrometry%20%28GC-MS%29" title=" gas chromatography-mass spectrometry (GC-MS)"> gas chromatography-mass spectrometry (GC-MS)</a>, <a href="https://publications.waset.org/abstracts/search?q=scentless%20flowers" title=" scentless flowers"> scentless flowers</a>, <a href="https://publications.waset.org/abstracts/search?q=volatile%20organic%20compounds%20%28VOCs%29" title=" volatile organic compounds (VOCs)"> volatile organic compounds (VOCs)</a>, <a href="https://publications.waset.org/abstracts/search?q=PCA%20analysis" title=" PCA analysis"> PCA analysis</a>, <a href="https://publications.waset.org/abstracts/search?q=heatmap" title=" heatmap"> heatmap</a> </p> <a href="https://publications.waset.org/abstracts/152016/analysis-of-the-volatile-organic-compounds-of-tillandsia-flowers-by-hs-spmegc-ms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/152016.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">57</span> Mesotrione and Tembotrione Applied Alone or in Tank-Mix with Atrazine on Weed Control in Elephant Grass</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20M.%20Brighenti">Alexandre M. Brighenti</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The experiment was carried out in Valença, Rio de Janeiro State, Brazil, to evaluate the selectivity and weed control of carotenoid biosynthesis inhibiting herbicides applied alone or in combination with atrazine in elephant grass crop. The treatments were as follows: mesotrione (0.072 and 0.144 kg ha<sup>-1</sup> + 0.5% v/v mineral oil - Assist®), tembotrione (0.075 and 0.100 kg ha<sup>-1</sup> + 0.5% v/v mineral oil - Aureo®), atrazine + mesotrione (1.25 + 0.072 kg ha<sup>-1</sup> + 0.5% v/v mineral oil - Assist®), atrazine + tembotrione (1.25 + 0.100 kg ha<sup>-1</sup> + 0.5% v/v mineral oil - Aureo®), atrazine + mesotrione (1.25 + 0.072 kg ha<sup>-1</sup>), atrazine + tembotrione (1.25 + 0.100 kg ha<sup>-1</sup>) and two controls (hoed and unhoed check). Two application rates of mesotrione with the addition of mineral oil or the tank mixture of atrazine plus mesotrione, with or without the addition of mineral oil, did not provide injuries capable to reduce elephant grass forage yield. Tembotrione was phytotoxic to elephant grass when applied with mineral oil. Atrazine and tembotrione in a tank-mix, with or without mineral oil, were also phytotoxic to elephant grass. All treatments provided satisfactory weed control. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=forage" title="forage">forage</a>, <a href="https://publications.waset.org/abstracts/search?q=Napier%20grass" title=" Napier grass"> Napier grass</a>, <a href="https://publications.waset.org/abstracts/search?q=pasture" title=" pasture"> pasture</a>, <a href="https://publications.waset.org/abstracts/search?q=Pennisetum%20purpureum" title=" Pennisetum purpureum"> Pennisetum purpureum</a>, <a href="https://publications.waset.org/abstracts/search?q=weeds" title=" weeds"> weeds</a> </p> <a href="https://publications.waset.org/abstracts/79651/mesotrione-and-tembotrione-applied-alone-or-in-tank-mix-with-atrazine-on-weed-control-in-elephant-grass" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/79651.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">283</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">56</span> Modeling of Crack Propagation Path in Concrete with Coarse Trapezoidal Aggregates by Boundary Element Method</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Chong%20Wang">Chong Wang</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Urbano%20Hoffmann"> Alexandre Urbano Hoffmann</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Interaction between a crack and a trapezoidal aggregate in a single edge notched concrete beam is simulated using boundary element method with an automatic crack extension program. The stress intensity factors of the growing crack are obtained from the J-integral. Three crack extension paths: deflecting around the particulate, growing along the interface and penetrating into the particulate are achieved in terms of the mismatch state of mechanical characteristics of matrix and the particulate. The toughening is also given by the ratio of stress intensity factors. The results reveal that as stress shielding occurs, toughening is obtained when the crack is approaching to a stiff and strong aggregate weakly bonded to a relatively soft matrix. The present work intends to help for the design of aggregate reinforced concretes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aggregate%20concrete" title="aggregate concrete">aggregate concrete</a>, <a href="https://publications.waset.org/abstracts/search?q=boundary%20element%20method" title=" boundary element method"> boundary element method</a>, <a href="https://publications.waset.org/abstracts/search?q=two-phase%20composite" title=" two-phase composite"> two-phase composite</a>, <a href="https://publications.waset.org/abstracts/search?q=crack%20extension%20path" title=" crack extension path"> crack extension path</a>, <a href="https://publications.waset.org/abstracts/search?q=crack%2Fparticulate%20interaction" title=" crack/particulate interaction"> crack/particulate interaction</a> </p> <a href="https://publications.waset.org/abstracts/28453/modeling-of-crack-propagation-path-in-concrete-with-coarse-trapezoidal-aggregates-by-boundary-element-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28453.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">426</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">55</span> Chemical and Mechanical Characterization of Composites Reinforced with Coconut Fiber in the Polymeric Matrix of Recycled PVC</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luiz%20C.%20G.%20Pennafort%20Jr.">Luiz C. G. Pennafort Jr.</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20de%20S.%20Rios"> Alexandre de S. Rios</a>, <a href="https://publications.waset.org/abstracts/search?q=Enio%20P.%20de%20Deus"> Enio P. de Deus</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In the search for materials that replace conventional polymers in order to preserve natural resources, combined with the need to minimize the problems arising from environmental pollution generated by plastic waste, comes the recycled materials biodegradable, especially the composites reinforced with natural fibers. However, such materials exhibit properties little known, requiring studies of manufacturing methods and characterization of these composites. This article shows informations about preparation and characterization of a composite produced by extrusion, which consists of recycled PVC derived from the recycling of materials discarded, added of the micronized coconut fiber. The recycled PVC with 5% of micronized fiber were characterized by X-ray diffraction, thermogravimetric, differential scanning calorimetry, mechanical analysis and optical microscopy. The use of fiber in the composite caused a decrease in its specific weight, due to the lower specific weight of fibers and the appearance of porosity, in addition to the decrease of mechanical properties. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=recycled%20PVC" title="recycled PVC">recycled PVC</a>, <a href="https://publications.waset.org/abstracts/search?q=coconut%20fiber" title=" coconut fiber"> coconut fiber</a>, <a href="https://publications.waset.org/abstracts/search?q=characterization" title=" characterization"> characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=composites" title=" composites"> composites</a> </p> <a href="https://publications.waset.org/abstracts/27634/chemical-and-mechanical-characterization-of-composites-reinforced-with-coconut-fiber-in-the-polymeric-matrix-of-recycled-pvc" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/27634.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">468</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">54</span> Hairy Beggarticks (Bidens pilosa L. - Asteraceae) Control in Sunflower Fields Using Pre-Emergence Herbicides</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20M.%20Brighenti">Alexandre M. Brighenti</a> </p> <p class="card-text"><strong>Abstract:</strong></p> One of the most damaging species in sunflower crops in Brazil is the hairy beggarticks (<em>Bidens pilosa </em>L.). The large number of seeds, the various vegetative cycles during the year, the staggered germination and the scarcity of selective and effective herbicides to control this weed in sunflower are some of attributes that hinder the effectiveness in controlling hairy beggarticks populations. The experiment was carried out with the objectives of evaluating the control of hairy beggarticks plants in sunflower crops, and to assess sunflower tolerance to residual herbicides. The treatments were as follows: <em>S</em>-metolachlor (1,200 and 2,400 g ai ha<sup>-1</sup>), flumioxazin (60 and 120 g ai ha<sup>-1</sup>), sulfentrazone (150 and 300 g ai ha<sup>-1</sup>) and two controls (weedy and weed-free check). Phytotoxicity on sunflower plants, percentage of control and density of hairy beggarticks plants, sunflower stand and plant height, head diameter, oil content and sunflower yield were evaluated. The herbicides flumioxazin and sulfentrazone were the most efficient in hairy beggarticks control. <em>S</em>-metolachlor provided acceptable control levels. S-metolachlor (1,200 g ha<sup>-1</sup>), flumioxazin (60 g ha<sup>-1</sup>) and sulfentrazone (150 g ha<sup>-1</sup>) were the most selective doses for sunflower crop. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flumioxazin" title="flumioxazin">flumioxazin</a>, <a href="https://publications.waset.org/abstracts/search?q=Helianthus%20annuus" title=" Helianthus annuus"> Helianthus annuus</a>, <a href="https://publications.waset.org/abstracts/search?q=S-metolachlor" title=" S-metolachlor"> S-metolachlor</a>, <a href="https://publications.waset.org/abstracts/search?q=sulfentrazone" title=" sulfentrazone"> sulfentrazone</a>, <a href="https://publications.waset.org/abstracts/search?q=weeds" title=" weeds"> weeds</a> </p> <a href="https://publications.waset.org/abstracts/82631/hairy-beggarticks-bidens-pilosa-l-asteraceae-control-in-sunflower-fields-using-pre-emergence-herbicides" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/82631.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">360</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">53</span> Integrated Target Tracking and Control for Automated Car-Following of Truck Platforms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fadwa%20Alaskar">Fadwa Alaskar</a>, <a href="https://publications.waset.org/abstracts/search?q=Fang-Chieh%20Chou"> Fang-Chieh Chou</a>, <a href="https://publications.waset.org/abstracts/search?q=Carlos%20Flores"> Carlos Flores</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiao-Yun%20Lu"> Xiao-Yun Lu</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20M.%20Bayen"> Alexandre M. Bayen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This article proposes a perception model for enhancing the accuracy and stability of car-following control of a longitudinally automated truck. We applied a fusion-based tracking algorithm on measurements of a single preceding vehicle needed for car-following control. This algorithm fuses two types of data, radar and LiDAR data, to obtain more accurate and robust longitudinal perception of the subject vehicle in various weather conditions. The filter’s resulting signals are fed to the gap control algorithm at every tracking loop composed by a high-level gap control and lower acceleration tracking system. Several highway tests have been performed with two trucks. The tests show accurate and fast tracking of the target, which impacts on the gap control loop positively. The experiments also show the fulfilment of control design requirements, such as fast speed variations tracking and robust time gap following. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=object%20tracking" title="object tracking">object tracking</a>, <a href="https://publications.waset.org/abstracts/search?q=perception" title=" perception"> perception</a>, <a href="https://publications.waset.org/abstracts/search?q=sensor%20fusion" title=" sensor fusion"> sensor fusion</a>, <a href="https://publications.waset.org/abstracts/search?q=adaptive%20cruise%20control" title=" adaptive cruise control"> adaptive cruise control</a>, <a href="https://publications.waset.org/abstracts/search?q=cooperative%20adaptive%20cruise%20control" title=" cooperative adaptive cruise control"> cooperative adaptive cruise control</a> </p> <a href="https://publications.waset.org/abstracts/140234/integrated-target-tracking-and-control-for-automated-car-following-of-truck-platforms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/140234.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">229</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">52</span> Comparison of Classical Computer Vision vs. Convolutional Neural Networks Approaches for Weed Mapping in Aerial Images</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Paulo%20Cesar%20Pereira%20Junior">Paulo Cesar Pereira Junior</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Monteiro"> Alexandre Monteiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafael%20da%20Luz%20Ribeiro"> Rafael da Luz Ribeiro</a>, <a href="https://publications.waset.org/abstracts/search?q=Antonio%20Carlos%20Sobieranski"> Antonio Carlos Sobieranski</a>, <a href="https://publications.waset.org/abstracts/search?q=Aldo%20von%20Wangenheim"> Aldo von Wangenheim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper, we present a comparison between convolutional neural networks and classical computer vision approaches, for the specific precision agriculture problem of weed mapping on sugarcane fields aerial images. A systematic literature review was conducted to find which computer vision methods are being used on this specific problem. The most cited methods were implemented, as well as four models of convolutional neural networks. All implemented approaches were tested using the same dataset, and their results were quantitatively and qualitatively analyzed. The obtained results were compared to a human expert made ground truth for validation. The results indicate that the convolutional neural networks present better precision and generalize better than the classical models. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=convolutional%20neural%20networks" title="convolutional neural networks">convolutional neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20learning" title=" deep learning"> deep learning</a>, <a href="https://publications.waset.org/abstracts/search?q=digital%20image%20processing" title=" digital image processing"> digital image processing</a>, <a href="https://publications.waset.org/abstracts/search?q=precision%20agriculture" title=" precision agriculture"> precision agriculture</a>, <a href="https://publications.waset.org/abstracts/search?q=semantic%20segmentation" title=" semantic segmentation"> semantic segmentation</a>, <a href="https://publications.waset.org/abstracts/search?q=unmanned%20aerial%20vehicles" title=" unmanned aerial vehicles"> unmanned aerial vehicles</a> </p> <a href="https://publications.waset.org/abstracts/112982/comparison-of-classical-computer-vision-vs-convolutional-neural-networks-approaches-for-weed-mapping-in-aerial-images" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/112982.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">260</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">51</span> Shock and Particle Velocity Determination from Microwave Interrogation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Benoit%20Rougier">Benoit Rougier</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Lefrancois"> Alexandre Lefrancois</a>, <a href="https://publications.waset.org/abstracts/search?q=Herve%20Aubert"> Herve Aubert</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Microwave interrogation in the range 10-100 GHz is identified as an advanced technique to investigate simultaneously shock and particle velocity measurements. However, it requires the understanding of electromagnetic wave propagation in a multi-layered moving media. The existing models limit their approach to wave guides or evaluate the velocities with a fitting method, restricting therefore the domain of validity and the precision of the results. Moreover, few data of permittivity on high explosives at these frequencies under dynamic compression have been reported. In this paper, shock and particle velocities are computed concurrently for steady and unsteady shocks for various inert and reactive materials, via a propagation model based on Doppler shifts and signal amplitude. Refractive index of the material under compression is also calculated. From experimental data processing, it is demonstrated that Hugoniot curve can be evaluated. The comparison with published results proves the accuracy of the proposed method. This microwave interrogation technique seems promising for shock and detonation waves studies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electromagnetic%20propagation" title="electromagnetic propagation">electromagnetic propagation</a>, <a href="https://publications.waset.org/abstracts/search?q=experimental%20setup" title=" experimental setup"> experimental setup</a>, <a href="https://publications.waset.org/abstracts/search?q=Hugoniot%20measurement" title=" Hugoniot measurement"> Hugoniot measurement</a>, <a href="https://publications.waset.org/abstracts/search?q=shock%20propagation" title=" shock propagation"> shock propagation</a> </p> <a href="https://publications.waset.org/abstracts/72540/shock-and-particle-velocity-determination-from-microwave-interrogation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/72540.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">213</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">50</span> Restraint and Seclusion: Individual and Environmental Characteristics of the Educators Super Users</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Caroline%20A.%20Mathieu">Caroline A. Mathieu</a>, <a href="https://publications.waset.org/abstracts/search?q=Steve%20Geoffrion"> Steve Geoffrion</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Dumais"> Alexandre Dumais</a>, <a href="https://publications.waset.org/abstracts/search?q=Denis%20Lafortune"> Denis Lafortune</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In Quebec, troubled youths stay in a rehabilitation Center (RC), and educators in RC’S are particularly at risk of exposure to workplace violence. In order to manage youth violence and protect youth safety or their own, educators can resort to restraint and seclusion (R&S) strategies. To our best knowledge, in the literature, no study was found on the topic of R&S super users either in psychiatry or in a rehabilitation center. The objective of this study is to explore the differences between R&S super users and normal users among educators in terms of individual and environmental characteristics, over an eight weeks period. The 278 participants were volunteers recruited from 36 units that foster around 8 to 12 youths per unit, in a suburb of Montreal; Quebec, Canada. The results indicate that among the variables that were studied, only fear of violence and past exposure to violence at work characterized the R&S super users. These results suggest that exposure to violence in the workplace might increase the anticipation and fear of violence from a youth; this is concordant with the results indicating that these variables are the ones separating normal users from super users. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=seclusion%20and%20restraint" title="seclusion and restraint">seclusion and restraint</a>, <a href="https://publications.waset.org/abstracts/search?q=violence" title=" violence"> violence</a>, <a href="https://publications.waset.org/abstracts/search?q=youth" title=" youth"> youth</a>, <a href="https://publications.waset.org/abstracts/search?q=educators" title=" educators"> educators</a> </p> <a href="https://publications.waset.org/abstracts/113251/restraint-and-seclusion-individual-and-environmental-characteristics-of-the-educators-super-users" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/113251.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">193</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">49</span> Enhancing Human Mobility Exoskeleton Comfort Using Admittance Controller</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Rabaseda">Alexandre Rabaseda</a>, <a href="https://publications.waset.org/abstracts/search?q=Emelie%20Seguin"> Emelie Seguin</a>, <a href="https://publications.waset.org/abstracts/search?q=Marc%20Doumit"> Marc Doumit</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Human mobility exoskeletons have been in development for several years and are becoming increasingly efficient. Unfortunately, user comfort was not always a priority design criterion throughout their development. To further improve this technology, exoskeletons should operate and deliver assistance without causing discomfort to the user. For this, improvements are necessary from an ergonomic point of view. The device’s control method is important when endeavoring to enhance user comfort. Exoskeleton or rehabilitation device controllers use methods of control called interaction controls (admittance and impedance controls). This paper proposes an extended version of an admittance controller to enhance user comfort. The control method used consists of adding an inner loop that is controlled by a proportional-integral-derivative (PID) controller. This allows the interaction force to be kept as close as possible to the desired force trajectory. The force-tracking admittance controller modifies the actuation force of the system in order to follow both the desired motion trajectory and the desired relative force between the user and the exoskeleton. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mobility%20assistive%20device" title="mobility assistive device">mobility assistive device</a>, <a href="https://publications.waset.org/abstracts/search?q=exoskeleton" title=" exoskeleton"> exoskeleton</a>, <a href="https://publications.waset.org/abstracts/search?q=force-tracking%20admittance%20controller" title=" force-tracking admittance controller"> force-tracking admittance controller</a>, <a href="https://publications.waset.org/abstracts/search?q=user%20comfort" title=" user comfort"> user comfort</a> </p> <a href="https://publications.waset.org/abstracts/133918/enhancing-human-mobility-exoskeleton-comfort-using-admittance-controller" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/133918.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">48</span> Controller Design and Experimental Evaluation of a Motorized Assistance for a Patient Transfer Floor Lift</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Donatien%20Callon">Donatien Callon</a>, <a href="https://publications.waset.org/abstracts/search?q=Ian%20Lalonde"> Ian Lalonde</a>, <a href="https://publications.waset.org/abstracts/search?q=Mathieu%20Nadeau"> Mathieu Nadeau</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Girard"> Alexandre Girard</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Patient transfer is a challenging, critical task because it exposes caregivers to injury risks. Available transfer devices, like floor lifts, lead to improvements but are far from perfect. They do not eliminate the caregivers’ risk of musculoskeletal disorders, and they can be burdensome to use due to their poor maneuverability. This paper presents a new motorized floor lift with a single central motorized wheel connected to an instrumented handle. Admittance controllers are designed to 1) improve the device maneuverability, 2) reduce the required caregiver effort, and 3) ensure the security and comfort of patients. Two controller designs, one with a linear admittance law and a non-linear admittance law with variable damping, were developed and implemented on a prototype. Tests were performed on seven participants to evaluate the performance of the assistance system and the controllers. The experimental results show that 1) the motorized assistance with the variable damping controller improves maneuverability by 28%, 2) reduces the amount of effort required to push the lift by 66%, and 3) provides the same level of patient comfort compared to a standard unassisted floor lift. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=floor%20lift" title="floor lift">floor lift</a>, <a href="https://publications.waset.org/abstracts/search?q=human%20robot%20interaction" title=" human robot interaction"> human robot interaction</a>, <a href="https://publications.waset.org/abstracts/search?q=admittance%20controller" title=" admittance controller"> admittance controller</a>, <a href="https://publications.waset.org/abstracts/search?q=variable%20admittance" title=" variable admittance"> variable admittance</a> </p> <a href="https://publications.waset.org/abstracts/176308/controller-design-and-experimental-evaluation-of-a-motorized-assistance-for-a-patient-transfer-floor-lift" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/176308.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">111</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">47</span> Corrosion Behavior of Different Electroplated Systems Coated With Physical Vapor Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jorge%20Santos">Jorge Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20V.%20Gir%C3%A3o"> Ana V. Girão</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20J.%20Oliveira"> F. J. Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20C.%20Bastos"> Alexandre C. Bastos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Protective or decorative coatings containing hexavalent chromium compounds are still used on metal and plastic parts. These hexavalent chromium compounds represent a risk to living beings and the environment, and, for this reason, there is a great need to investigate alternatives. Physical Vapor Deposition (PVD) is an environmentally friendly process that allows the deposition of wear and corrosion resistant thin films with excellent optical properties. However, PVD thin films are porous and if deposited onto low corrosion resistant substrates, lead to a degradation risk. The corrosion behavior of chromium-free electroplated coating systems finished with magnetron sputtered PVD thin films was investigated in this work. The electroplated systems consisted of distinct nickel layers deposited on top of a copper interlayer on acrylonitrile butadiene styrene (ABS) plates. Electrochemical and corrosion evaluation was conducted by electrochemical impedance spectroscopy and polarization curves on the different electroplated coating systems, with and without PVD thin film on top. The results show that the corrosion resistance is lower for the electroplated coating systems finished with PVD thin film for extended exposure periods when compared to those without the PVD overlay. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PVD" title="PVD">PVD</a>, <a href="https://publications.waset.org/abstracts/search?q=electroplating" title=" electroplating"> electroplating</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=thin%20film" title=" thin film"> thin film</a> </p> <a href="https://publications.waset.org/abstracts/153146/corrosion-behavior-of-different-electroplated-systems-coated-with-physical-vapor-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153146.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">147</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">46</span> Antarctica, Global Change and Deaf Education in Brazil</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Luiz%20Antonio%20Da%20Costa%20Rodrigues">Luiz Antonio Da Costa Rodrigues</a>, <a href="https://publications.waset.org/abstracts/search?q=Mara%20Aparecida%20De%20Castilho%20Lopes"> Mara Aparecida De Castilho Lopes</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Santos%20Alencar"> Alexandre Santos Alencar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Teaching of science must transcend simple transmission of fundamental concepts and allow scientific literacy, as a process for understanding the human being as an integral part of a complex and interdependent whole. In this context, approaching the theme ‘Antarctica’ in deaf education is an important advance for teaching, considering that that continent has direct interactions with the climatic and environmental system of the planet. Therefore, textbooks can be important tools to enable the Deaf Community to access the discussion about the natural environment. A specific script was used to analyze textbooks adopted by schools in the Rio de Janeiro Metropolitan Region. Results show that none of the 14 analyzed books have a specific chapter on the theme, some presents images of the continent without reference to their environmental importance, and the complementary texts present in the analyzed material do not address the theme either. It is concluded that the study on Antarctica and global changes in elementary education is still incipient and the material used by most Brazilian public schools does not contemplate that subject in an accessible way for the deaf person. This fact represents the distance between deaf students and their environment, denoting the need for actions to promote that and other neglected themes in Science teaching. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Antarctica" title="Antarctica">Antarctica</a>, <a href="https://publications.waset.org/abstracts/search?q=deaf%20education" title=" deaf education"> deaf education</a>, <a href="https://publications.waset.org/abstracts/search?q=science%20teaching" title=" science teaching"> science teaching</a>, <a href="https://publications.waset.org/abstracts/search?q=textbook" title=" textbook"> textbook</a> </p> <a href="https://publications.waset.org/abstracts/81264/antarctica-global-change-and-deaf-education-in-brazil" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/81264.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">281</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">45</span> Molecular Evidence for Three Species of Giraffa</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alice%20Petzold">Alice Petzold</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20Hassanin"> Alexandre Hassanin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The number of giraffe species has been in focus of interest since the exploration of sub-Saharan Africa by European naturalists during the 18th and 19th centuries, as previous taxonomists, like Geoffroy Saint-Hilaire, Richard Owen or William Edward de Winton, recognized two or three species of Giraffa. For the last decades, giraffes were commonly considered as a single species subdivided into nine subspecies. In this study, we have re-examined available nuclear and mitochondrial data. Our genetic admixture analyses of seven introns support three species: G. camelopardalis (i.e., northern giraffes including reticulated giraffes), G. giraffa (southern giraffe) and G. tippelskirchi (Masai giraffe). However, the nuclear alignments show small variation and our phylogenetic analyses provide high support only for the monophyly of G. camelopardalis. Comparisons with the mitochondrial tree revealed a robust conflict for the position and monophyly of G. giraffa and G. tippelskirchi, which is explained firstly by a mitochondrial introgression from Masai giraffe to southeastern giraffe, and secondly, by gene flow mediated by male dispersal between southern populations (subspecies angolensis and giraffa). We conclude that current data gives only moderate support for three giraffe species and point out that additional nuclear data need to be studied to revise giraffe taxonomy. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=autosomal%20markers" title="autosomal markers">autosomal markers</a>, <a href="https://publications.waset.org/abstracts/search?q=Giraffidae" title=" Giraffidae"> Giraffidae</a>, <a href="https://publications.waset.org/abstracts/search?q=mitochondrial%20introgression" title=" mitochondrial introgression"> mitochondrial introgression</a>, <a href="https://publications.waset.org/abstracts/search?q=taxonomy" title=" taxonomy"> taxonomy</a> </p> <a href="https://publications.waset.org/abstracts/91406/molecular-evidence-for-three-species-of-giraffa" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/91406.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">204</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">44</span> Analysis of in Vitro Biocompatibility Studies of Silicate-Based Bioceramic Cements: A Scoping Review</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Olphiara%20Rodolpheza%20Alexandre">Olphiara Rodolpheza Alexandre</a>, <a href="https://publications.waset.org/abstracts/search?q=Carla%20David"> Carla David</a>, <a href="https://publications.waset.org/abstracts/search?q=Rafael%20Guerra%20Lund"> Rafael Guerra Lund</a>, <a href="https://publications.waset.org/abstracts/search?q=Nadia%20Ferreira"> Nadia Ferreira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Due to the increasing demand for biomaterials in the dental field, especially in endodontics, calcium silicate-based cements (CSCs) have gained prominence because of their biocompatibility and tissue regeneration capabilities. Originating from Mineral Trioxide Aggregate (MTA), the first bioceramic in endodontics derived from Portland cement, these materials are becoming increasingly prevalent in the market. For any drug released to the market, pharmacovigilance must ensure the absence of adverse health effects on consumers through rigorous toxicological testing. Although these materials have undergone in vitro and in vivo testing, such tests have typically been conducted over a limited period. Some effects may only become apparent after several years, and these studies are generally carried out on a non-specific population. However, the variety of calcium silicate-based products, including cement and sealers, raises questions about their toxicity, particularly considering potential long-term effects not addressed in existing studies. While the scientific literature includes comparative studies on the toxicity of these materials, the consistency of their conclusions is often controversial. Therefore, this project aims to map the scientific evidence from in vitro biocompatibility studies, including those investigating the toxicity of calcium silicate-based bioceramics. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=toxicity" title="toxicity">toxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=toxicity%20test" title=" toxicity test"> toxicity test</a>, <a href="https://publications.waset.org/abstracts/search?q=bioceramics" title=" bioceramics"> bioceramics</a>, <a href="https://publications.waset.org/abstracts/search?q=calcium%20silicate" title=" calcium silicate"> calcium silicate</a>, <a href="https://publications.waset.org/abstracts/search?q=genotoxicity" title=" genotoxicity"> genotoxicity</a> </p> <a href="https://publications.waset.org/abstracts/189472/analysis-of-in-vitro-biocompatibility-studies-of-silicate-based-bioceramic-cements-a-scoping-review" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/189472.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">30</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Alexandre%20Daliberto%20Frugoli&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Alexandre%20Daliberto%20Frugoli&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=Alexandre%20Daliberto%20Frugoli&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div 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