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- A sustainable approach to let students do more real experiments with electrical and electronic circuitsPublication . Alves, Gustavo R.; Pester, Andreas; Kulesza, Wlodek; Silva, Juarez Bento; Pavani, Ana; Pozzo, María Isabel; Marchisio, Susana; Fernandez, Ruben; Oliveira, Vanderli; Schlichting, Luis C. M.; Felgueiras, Carlos; Viegas, Clara; Fidalgo, André; Marques, Maria Arcelina; Costa, Ricardo; Lima, Natércia; Castro, Manuel; García-Zubía, JavierThe present paper focus on the use of remote laboratories in higher education from a sustainability viewpoint. The particular case of engineering education, and, within it, the more specific subject of experiments with electrical and electronic circuits is presented first, to then discuss the benefits of using remote labs, while considering the three dimensions of sustainable development, i.e.: economic practice, environmental protection, and social integration. The paper debates how remote labs address each dimension.
- How Remote Labs Impact on Course Outcomes: Various Practices Using VISIRPublication . Marques, Maria A.; Viegas, Maria Clara; Costa-Lobo, Maria Cristina; Fidalgo, André Vaz; Alves, Gustavo R.; Rocha, Joao S.; Gustavsson, IngvarAs technology is increasingly being seen as a fa- cilitator to learning, open remote laboratories are increasingly available and in widespread use around the world. They provide some advantages over traditional hands-on labs or simulations. This paper presents the results of integrating the open remote laboratory VISIR into several courses, in various contexts and using various methodologies. These integrations, all related to higher education engineering, were designed by teachers with different perspectives to achieve a range of learning outcomes. The degree to which these VISIR-related outcomes were accomplished is discussed. The results reect the levels of student engagement and learning and of teacher involvement. From the analysis, a connection between these two aspects was traced, although only related to the user proles. VISIR is shown to be always of benet for more motivated students, but this benet can be maximized under particular conditions and characteristics.
- OCD-FI, On-Chip Debugging and Fault Injection for validating microprocessor based dependable systemsPublication . Fidalgo, André Vaz; Alves, Gustavo R.; Ferreira, José M.This paper proposes a set of modifications to the on-chip debugging infrastructures present in many actual microprocessor cores, with the objective of supporting the validation and verification steps of fault-tolerant mechanisms through fault injection campaigns. A synthesisable microprocessor core for programmable components was used as a target system an. a debugging infrastructure compliant with the NEXUS 5001 proposed standard for on- chip debugging was implemented on this target. To improve the process of real-time memory fault injection, an upgraded infrastructure designated as On-Chip Debugging and Fault Injection (OCD-FI) was developed. The complete system was analysed in terms of area overhead and fault injection capabilities and performance. All elements were designed as synthesizable VHDL modules and evaluated in simulation.
- Students' perception about using VISIRPublication . Lima, Natércia; Viegas, Clara; Alves, Gustavo R.; Marques, Maria Arcelina; Fidalgo, AndréRemote Labs allows students a complementary way to learn. While working upon their experimental skills, they can practice their autonomy. VISIR is one of the remote labs more used in the field of Electricity and Electronics. This study was conducted in three countries and 14 educational institutions and gathered 952 students' opinions while using VISIR along with other experimental resources. Its goal was to perceive students' opinion about VISIR. Several advantages and disadvantages were identified, regardless the focus of the course or students' level of usage. Positively: “the potential of the equipment”, “access from anywhere/anytime” and “better/more complete understanding”; Negatively: “operating issues”, “problems in understanding” and “poor interface/old fashionable/too simple”.
- Ethernet Communication Platform for synthesized devices in Xilinx FPGAPublication . Souza, Rodrigo Neri de; Muniz, Daiana Nascimento; Fidalgo, André VazThis article presents and describes the implementation of an Ethernet communication platform for devices synthesized into Xilinx FPGAs. This platform provides a way to control programmable logic devices, as well as data communication using a standard network. The proposed solution is very complete and provides common services and protocols of TCP/IP stack, in order to provide maximum flexibility. The platform modularity allows its use by most devices that can be synthesized into a FGPA, providing they adhere to the required implementation directives (FIFO communication). Presently the proposed platform is being used for the implementation of a remotely accessible, and IEEE1149.1 compatible, digital tester. The design is based on a traditional embedded system (software and hardware) also synthesized into the FPGA. The embedded system hardware is based on a MicroBlaze microprocessor (softcore) and implemented using XPS. It runs the Petalinux embedded operating system and custom developed applications.
- Using Remote Lab for Enhancing E-Learning on FPAAsPublication . Felgueiras, Carlos; Areias, Dinis; Fidalgo, André Vaz; Petry, Clovis; Alves, Gustavo R.Analog and digital electronic subjects are part of the electronic engineer degree but its taught is not easy because they are founded in opposite methodologies. The electronic design in the digital field is centered in the use of microprocessor and FPGA based circuits using high level programing/configuring languages. The counterpart analog design is traditionally based in the use of elementary com- ponents associated with macroblocks such operational am- plifiers in order to built-up the wanted mission circuit. Some few components, as the FPAA, are analogically configurable in a similar manner already used with the FPGA. However the use of this kind of components is not straightforward once is necessary acquire some concepts not taught in the traditionally analog electronic classes. The current work present an innovative remote lab to sup- port teaching of the FPAAs.
- Analog electronic teaching – a new approach for bipolar transistorsPublication . Felgueiras, Carlos; Santos, Catarina; Alves, Gustavo R.; Fidalgo, André; Pertry, Clovis; Schlichting, Luisa) This work was based in a single individual sample; b) Learning Support Means (LSM) received poor acceptance; c) Other Alternative Support Means are under development; d) For these, a broader test sample was used; e) Preliminary results from this test are encouraging to further pursue this work
- EOLES coursePublication . Gericota, Manuel G.; Fidalgo, André Vaz; Barataud, Denis; Andrieu, Guillaume; Craemer, Renaat De; Cristea, Mihai; Benachenhou, Abdelhalim; Ankrim, Mohammed; Bouchlaghem, Karim; Ferreira, PauloThe EOLES course is the main result of an innovative and groundbreaking TEMPUS project, focused in Engineering Education. It covers all the problematic areas of Engineering Education, trying of find a suitable compromise in satisfying all the methods of evaluating engineering degrees. EOLES is an international cooperative project, with an emphasis not only on one of the facets of engineering education, but trying to involve all of them. This paper describes the course’s preparation and accreditation, its structure (motivated by pedagogical constraints), the E-learning framework, and the virtual and remote laboratories and their integration in the course. Some data related to the current first edition of the course are provided, namely the number of applicants and their countries of origin. While limited to a 3rd year in a Bachelor’s Degree, for now, it is expected to be extended to a full course in a near future. The EOLES course is the result of an international effort involving experts from different engineering and education areas, in order to provide a better global Engineering Education.
- E-Engineering for Middle East and North Africa (MENA): Why and HowPublication . Ferreira, Paulo; Gericota, Manuel; Fidalgo, AndréThe potential for development of the Middle East and North Africa region has as one of it's obstacles the lack of a suitable engineering workforce. The Higher Education Institutions of the area have e-Engineering (online Engineering Education using Remote Laboratories) a tool to increase the number and quality of graduated Engineers. The e-Lives project aims to disseminate e-Engineering (good practices) in the region, and has documents and knowledge that can help all interested in this task.
- A comprehensive VISIR bibliographical referencePublication . Silva, Mariana Miguel; Fidalgo, André; Marques, Maria Arcelina; Alves, Gustavo R.; Salah, Razwan M.; Jacob, Frederico L.VISIR (Virtual Instrument Systems in Reality) is a remote laboratory environment in use in research and academic institutions since 2001. This paper presents a comprehensive VISIR bibliographical reference, including a performance analysis, which reviews the publication data and the citation indexes, and a science mapping, that presents the cognitive structure. The procedure to retrieve, aggregate, process, and analyze data is based on documented sources and is also presented in the article, including some comments on specific issues faced while applying the proposed methodology. The paper characterizes the publication evolution over time, the most prolific authors and their networks, the main research topics, the most frequent sources, and the most cited documents. The available results show a mature and evolving collaborative network and an expansion trend that allows predicting that VISIR is not only the source of many academic and applied research publications, but also a popular and continuously developing remote laboratory and the basis of a very active community.