Browsing by Author "Alves, Gustavo R."
Now showing 1 - 10 of 349
Results Per Page
Sort Options
- 21st Century Challenges in Engineering and Technological learningPublication . Viegas, Clara; Marques, Arcelina; Alves, Gustavo R.The success of 21st century engineers1 depends on demanding challenges, involving a large scope of scientific and social competences. College education must help students to develop those competences in collaborative environments and better address these needs. Developing students’ knowledge and skills in contextualized engineering environments, practicing teamwork, leadership, decision-making, experimental work and critical thinking are some of the important aspects addressed in this track.
- Academic effectiveness of VISIR remote lab in analog electronicsPublication . Garcia-Zúbia, Javier; Henandez-Jayo, Unai; Gustavsson, Ingvar; Alves, Gustavo R.The effectiveness of VISIR is compared to other experimentation activities under the point of view presented by the professor Soysal in 2000. Advantages and limitations are discussed in terms of equipment availability, infrastructure cost, and contribution to various elements of experimental learning.
- Acerca de la eficacia de VISIR como recurso en temas de electrónica circuital en ArgentinaPublication . Marchisio, Susana; Lerro, Federico; Merendino, Claudio; Plano, Miguel; Concari, Sonia B.; Arguedas, Carlos; García-Zubía, Javier; Hernández-Jayo, Unai; Alves, Gustavo R.“Virtual Instruments System in Reality” (VISIR) es una plataforma laboratorio de acceso remoto desarrollada en el Departamento de Ingeniería Electrónica del Instituto de Tecnología de Blekinge (BTH), Suecia. VISIR ha sido empleada y evaluada en varios países e instituciones en el mundo, reportándose en la bibliografía que la misma facilita el logro de resultados de aprendizaje en temas de electrónica analógica. El primer uso intensivo de VISIR por estudiantes en la Facultad de Ciencias Exactas, Ingeniería y Agrimensura (FCEIA), Universidad Nacional de Rosario (UNR) data de 2016. Dicha experiencia se llevó a cabo en la forma de caso de estudio en una asignatura de Ingeniería Electrónica (IE) que constituye el primer acercamiento a la electrónica de dispositivos y circuitos. El empleo de VISIR en el contexto curricular se propuso en forma complementaria al laboratorio tradicional, para la realización de una actividad de integración cuya solución requería del cálculo matemático y de la experimentación remota. Finalizada la experiencia se recabaron datos cuantitativos y cualitativos con el objetivo de evaluar la misma. En este trabajo se informan resultados que focalizan en la valoración por estudiantes y docentes de la eficacia de VISIR como recurso de aprendizaje en temas introductorios de la electrónica circuital.
- Acquisition of higher-order experimental skills through remote and virtual laboratoriesPublication . Restivo, Maria Teresa; Alves, Gustavo R.Remote laboratories are physical spaces with real apparatus and real instruments connected to the Internet. They allow both students and teachers to remotely conduct real experiments through a simple web browser.
- Active learning of DC circuits: spreading the use of the VISIR remote lab in ArgentinaPublication . Evangelista, Ignacio; Cadierno, Matías; Farina, Juan; Roldán, Gabriel; García-Zubía, Javier; Hernández, Unai; Alves, Gustavo R.; Pozzo, María I.; Dobboletta, Elsa; Marchisio, Susana; Concari, Sonia; Nilsson, KristianThe VISIR+ Project was launched in 2015 with the objective of spreading the use of the VISIR remote laboratory in Latin America, promoting an enquiry-based approach to teaching and learning on electric and electronic circuits. Within the scope of this project, several didactical implementations were achieved both in Argentina and in Brazil. This article describes the latest implementation of VISIR in a pre-university technical school in Argentina (associated partner of the VISIR+ team) in three Physics courses with students having different background knowledge and interests. A set of activities comprising simulations, remote and hands-on experiments were designed in order to engage students in the learning process. The implementation was assessed in terms of the learning objectives and outcomes. Results showed that VISIR is an effective tool to promote active learning. Moreover, this experience seems highly valuable to encourage the dissemination of VISIR in Argentina
- Active Replication: Towards a Truly SRAM-based FPGA On-Line Concurrent TestingPublication . Gericota, Manuel G.; Alves, Gustavo R.; Silva, Miguel L.; Ferreira, J. M. MartinsThe reusing of the same hardware resources to implement speed-critical algorithms, without interrupting system operation, is one of the main reasons for the increasing use of reconfigurable computing platforms, employing complex SRAM-based FPGAs. However, new semiconductor manufacturing technologies increase the probability of lifetime operation failures, requiring new on-line testing / fault-tolerance methods able to improve the dependability of the systems where they are included. The Active Replication technique presented in this paper consists of a set of procedures that enables the implementation of a truly non-intrusive structural on-line concurrent testing approach, detecting and avoiding permanent faults and correcting errors due to transient faults. In relation to a previous technique proposed by the authors as part of the DRAFT FPGA concurrent test methodology, the Active Replication technique extends the range of circuits that can be replicated, by introducing a novel method with very low silicon overhead.
- Adaptação de Laboratórios Remotos a Cenários de Ensino: Casos de Estudo com VISIR e RemotElectLabPublication . Fidalgo, André V.; Alves, Gustavo R.; Marques, Maria A.; Viegas, Maria C.; Costa-Lobo, Maria C.; Hernández-Jayo, Unai; García-Zubía, Javier; Gustavsson, Ingvar; Alves, Gustavo; Fidalgo, André; Marques, Maria Arcelina; Viegas, Clara; Costa Lobo, Cristina; Garcia-Zubia, JavierOs laboratórios remotos são uma ferramenta tecnológica e pedagógica com uso crescente em todos os níveis de educação, e sua utilização generalizada é uma parte importante do seu próprio aperfeiçoamento e evolução. Este artigo descreve vários problemas encontrados em aulas laboratoriais, em cursos de ensino superior, na utilização de laboratórios remotos baseados em sistemas PXI, utilizando o sistema VISIR ou uma solução alternativa. São identificados e explicados três problemas que foram relatados por professores que deram apoio aos estudantes na utilização dos laboratórios remotos. O primeiro problema prende-se com a necessidade de permitir aos alunos selecionar a localização específica onde um amperímetro deve ser inserido nos circuitos elétricos, mesmo que incorreta, replicando as dificuldades do mundo real. O segundo é causado por falhas de sincronismo quando são necessárias várias medições em intervalos curtos, como no ciclo de descarga de um condensador. E o último problema é provocado pelo uso de um multímetro em modo DC na leitura de grandezas em CA, um procedimento que colide com as definições do equipamento. Todos os cenários são apresentados e discutidos, incluindo a solução encontrada para cada caso. A conclusão que se retira do trabalho descrito é que a área de laboratórios remotos é um campo em expansão, onde a sua utilização prática permite o aperfeiçoamento e a evolução das soluções disponíveis, exigindo uma cooperação e partilha de informação entre todos os intervenientes, i.e. investigadores, professores e alunos.
- Adapting remote labs to learning scenarios: case studies using VISIR and RemotElectLabPublication . Fidalgo, André Vaz; Alves, Gustavo R.; Marques, Maria A.; Viegas, C.; Costa-Lobo, Cristina; Henandez-Jayo, Unai; Garcia-Zúbia, Javier; Gustavsson, IngvarRemote laboratories are an emergent technological and pedagogical tool at all education levels, and their widespread use is an important part of their own improvement and evolution. This paper describes several issues encountered on laboratorial classes, on higher education courses, when using remote laboratories based on PXI systems, either using the VISIR system or an alternate in-house solution. Three main issues are presented and explained, all reported by teachers, that gave support to students' use of remote laboratories. The first issue deals with the need to allow students to select the actual place where an ammeter is to be inserted on electric circuits, even incorrectly, therefore emulating real-world difficulties. The second one deals with problems with timing when several measurements are required at short intervals, as in the discharge cycle of a capacitor. In addition, the last issue deals with the use of a multimeter in dc mode when reading ac values, a use that collides with the lab settings. All scenarios are presented and discussed, including the solution found for each case. The conclusion derived from the described work is that the remote laboratories area is an expanding field, where practical use leads to improvement and evolution of the available solutions, requiring a strict cooperation and information-sharing between all actors, i.e., developers, teachers, and students.
- Addressing software impact in the design of remote laboratoriesPublication . Garcia-Zúbia, Javier; Orduña, Pablo; Lopez-de-Ipina, D.; Alves, Gustavo R.Remote Laboratories or WebLabs constitute a first-order didactic resource in engineering faculties. However, in many cases, they lack a proper software design, both in the client and server side, which degrades their quality and academic usefulness. This paper presents the main characteristics of a Remote Laboratory, analyzes the software technologies to implement the client and server sides in a WebLab, and correlates these technologies with the characteristics to facilitate the selection of a technology to implement a WebLab. The results obtained suggest the adoption of a Service Oriented Laboratory Architecture-based approach for the design of future Remote Laboratories so that client-agnostic Remote Laboratories and Remote Laboratory composition are enabled. The experience with the real Remote Laboratory, WebLab-Deusto, is also presented.
- Adjusting Higher Education Competences to Companies Professional NeedsPublication . Alves, Joaquim; Lima, Natércia; Alves, Gustavo R.; García-Peñalvo, Francisco J.This work reports the incorporation result of a Work Integrated Learning (WIL) Program in the two- years master’s degree in Instrumentation and Metrology Engineering (MEIM) held at the School of Engineering, Polytechnic of Porto (ISEP). The procedure developed to find internships in industrial companies and institutions, which have needs for engineers in the areas of instrumentation and metrology is displayed. The authors also present the information on the situation of students that, by the end of the first academic year, could get enrolled in the curricular unit Dissertation/Project/ Professional Training (opting either for a professional internship in a company or by a research project conducted in ISEP laboratories). In order to understand the benefits and impact of a WIL program, from a student perspective, students were asked to answer a questionnaire. Lastly, the results achieved during the study period are presented, including the student reported outcomes (from the questionnaire), as well as the informal feedback from students and companies’ supervisors. The good results achieved, regarding the development of theoretical-practical competencies as well as generic or soft skills, during the master’s, were also confirmed by the fact that students are hired by the companies to continue their work after the end of professional training.