A Network and Repository for Online Laboratory based on Ontology

Our propose is to build a network of virtual laboratories and also use it as a global repository of online laboratory’s and experiences. This set of virtual and online laboratories can be “stored” in an “virtual closet”, and also the system will allow us to build new experiences and online laboratories, and store them is this “virtual closet”. With the drawing of this new standard we pretend define methods for storing and retrieving learning objects for remote laboratories. The objective of this standard is also define methods for linking learning objects to design and implement smart learning environments for remote online laboratories. The objects defined by this standard are, for example, interfaces for devices connected to user computers over computers networks and the devices themselves. They are also learning scenarios or collaboration tools for communications necessary to conduct an activity of practical online laboratory work, they will allow to design and implement mechanisms that make smart learning environment formed by the ad hoc aggregation of learning objects taking always into account the pedagogical context for their use. This will allow to easy design and implement the pedagogically driven remote laboratory environment and experiments as also is learning environments. The experiences and laboratories are build using the parts and separate components that we have in a separate “virtual closet” with parts, components, and already build experiences. To build this complex network we need to find a system that supports effectively this structure. This probably will be a enormous database of v-labs and independent elements, where will be possible sometimes to “recycle” some of the elements. For this structure we propose an Ontology because it allows to “re-use” the same element several times in many experiences, and provide a very detailed description of each kind of element through is classes and sub-classes.Com o apoio RAADRI

A neural network model of magnetic hysteresis for computational magnetics

A neural network to implement a hysteresis model for a magnetic material within a finite element program is described. It is shown that such a system can match the results produced by a Preisach model but the time overhead can be considerably reduced thus making feasible the solution of large problems involving hysteretic materials

Modeling Magnetic Materials using Artificial Neural Networks

The accurate and effective modeling of magnetic materials is critical to the prediction of the performance of electromagnetic devices. The paper discusses the use of artificial neural networks as a uniform method for modeling the behavior of magnetic materials both isotropic and anisotropic, and with and without hysteresis

Towards owl ontologies from relational databases: An HTML-form driven approach

The use of ontologies and ontology languages like OWL has attracted much attention, mainly in the Semantic Web research field. In this paper we focus on the problem of automating the generation of domain ontologies, at least partially, by applying reverse engineering technique. We present the complete details of the process of semi-automatically creating an OWL ontology that corresponds to the content of a relational database based on the analysis of its related HTML-forms. The main reason for this construction is to make the relational database information that is available on the Web machine-processable and reduce the time consuming task of ontology creation. Copyright © 2007 by the International Society for Computers and Their Applications (ISCA)

Standardization Layers for Remote Laboratories as Services and Open Educational Resources

Deliveringeducationandeducationalresourceshasevolvedfromclass- centered settings towards distributed, cloud-based models. This is mainly the con- sequence of publicly available educational resources such as documents, videos, and web applications. At the same time, emerging technologies in information and communication are enabling the development and deployment of remote lab- oratories on the Web. Today, these freely and openly available educational inter- active media are known as Open Education Resources (OERs). Learning manage- ment systems, MOOC platforms, and educational social media platforms provide a medium for teachers to create their teaching activities around OERs in a struc- tured way. To enjoy an effective and productive learning experience, it is neces- sary for the educational resources to be fully integrated in the hosting platform. While most platforms have a ready-to-embed infrastructure for certain types of OERs, they are not ready to host remote laboratories in an integrated fashion. In this paper, we define the necessary integration layers for remote labs in on- line learning environments. The work is validated by two implementations with different target platforms

Putting labs online with web services

Web services provide a way to offer remote control of scattered scientific instruments, enabling online labs that students can use from anywhere, at any time

Mobile laboratories as an alternative to conventional remote laboratories

Remote laboratories have been playing an important role on the improvement of flexibility and the extent of practical activities in teaching and learning activities in engineering and technology. However, the current remote laboratories model does not consider dynamic scenarios including collaboration, peer-to-peer labs and mobile labs. This paper presents a set of tools for creating collaborative online mobile laboratories that allow students to develop their own labs and share them with classmates and teachers. The approach used is compatible with the machine and network configurations that the target user has in schools and at home, and provides the retrieval of information for learning evaluation.info:eu-repo/semantics/publishedVersio

Formation, coopération et assistance technique à distance médiatisées

Les écoles d’ingénieurs ne doivent ménager aucun effort afin de s’impliquer activement dans le développement et l’intégration des technologies novatrices de formation. Ce concept fédérateur représente la symbiose de l’Enseignement Assisté par Ordinateur (EAO), de la Conception Assistée par Ordinateur (CAO) et de la Formation à Distance (FAD). La mise en oeuvre des outils hypermédia interactifs et l’application des stratégies pédagogiques appropriées telles que l’apprentissage constructiviste guidé par la simulation et l’exploration permettent d’atteindre des objectifs mesurables du point de vue de l’amélioration du processus d’apprentissage

Mesures électroniques et télémanipulations sur les réseaux informatiques pour la formation, l'apprentissage et le télétravail collaboratif

Les séances de travaux pratiques sont indéniablement complémentaires à tout enseignement théorique, et ce dans de nombreux domaines. En poursuivant notre promotion de l'utilisation de l'ordinateur et les réseaux informatiques comme supports pour la formation et l'apprentissage [1] à [5], nous allons présenter comment développer des environnements virtuels de télé-expérimentation dans lesquels des apprenants pourront, seuls ou en équipes délocalisées à travers les réseaux de télécommunications, effectuer des expériences en temps réel sur des dispositifs physiques réels ou virtuels. Les formateurs, quant à eux, pourraient conduire la mise en œuvre de séances interactives d'instruction de travaux pratiques à l'aide des scénarios appropriés. Cette manière de travailler est appelée à se généraliser dans un avenir très proche. Nous allons montrer concrètement comment il est possible, à l'aide de moyens de télécommunications appropriés, d’un système de gestion convenable ainsi que d’un certain nombre d’interfaces de logiciels et de matériels, pour des utilisateurs géographiquement dispersés, d’accéder à des ressources disponibles dans plusieurs sites distants. Les acteurs pourraient donc miser sur l’accessibilité des ressources matérielles et humaines distribuées pour réaliser, en collaboration, des expérimentations autrement irréalisables dans un contexte local. Les dimensions technologiques et pédagogiques du concept émergeant des laboratoires virtuels pour l'enseignement des sciences et de la technologie seront présentés. Nous allons également partager nos résultats récents d'expérimentations de télémétrie et de télécommande effectuées au Centre de recherche LICEF de la Télé-université du Québec sur des réseaux locaux et les réseaux Internet

The implementation of generalised models of magnetic materials using artificial neural networks

This thesis proposes a framework for using an artificial neural network (ANN) as a uniform and universal method for modelling the behaviour of both isotropic and anisotropic materials, exhibiting hysteresis or not. It addresses the complex task of coupling a given material representation with a true analysis system, i.e. one based on finite element analysis. We have demonstrated this approach through numerical examples and experimental results that we have commented and discussed. […]Nous proposons dans cette thèse, l'utilisation de réseaux de neurones artificiels pour modéliser d'une manière uniforme et universelle des matinaux magnétiques hystérétiques ou non hystérétiques et tenant compte de leurs comportements isotropiques ou non isotropiques. Nous avons également effectué la tâche complexe de créer une interface numérique qui permet de coupler tout model de matériaux magnétiques à un système d'analyse. Il s'agit dans ce cas précis de programmes d'analyse bases sur les éléments finis en électromagnétisme. Nous avons expérimentalement montre la faisabilité de notre approche en traitant des exemples numériques et les résultats obtenus ont été analyses et commentes. […