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- Jose Joao Almeida, Isabel Araujo, +4 authors Georgi Smirnov
- 2013 8th Iberian Conference on Information…
- 2013

In order to be robust and achieve multi-domain coverage, exercise generation systems usually work with answers of simple types (e.g. multiple-choice, Boolean, integer, or file comparison). In this paper we describe an exercise generation system Passarola, a simple, yet powerful, language that anyone with no computer science background, can use to develop… (More)

- N C S Vieira, J Borme, +5 authors P Alpuim
- Journal of physics. Condensed matter : an…
- 2016

Ten years have passed since the beginning of graphene research. In this period we have witnessed breakthroughs both in fundamental and applied research. However, the development of graphene devices for mass production has not yet reached the same level of progress. The architecture of graphene field-effect transistors (FET) has not significantly changed,… (More)

- Jose Joao Almeida, Isabel Araujo, +4 authors Georgi Smirnov
- 2013 8th Iberian Conference on Information…
- 2013

In this paper we concentrate on the field of mathematics education where the aim is to generate exercises going beyond those with answers of simple types (e.g. multiple-choice, Boolean, integer, or file comparison). We present three examples from introductory college mathematics and emphasize the key points that should be taken into account in order to… (More)

- Ricardo Costa, Stéphane Clain, Gaspar José Machado
- Computers & Mathematics with Applications
- 2014

- Ricardo Costa, Stéphane Clain, Gaspar José Machado
- ICCSA
- 2014

- Ricardo Costa, Gaspar José Machado, Stéphane Clain
- Applied Mathematics and Computer Science
- 2015

- Ricardo Costa, Stéphane Clain, Gaspar José Machado
- J. Comput. Physics
- 2017

We propose a new finite volume method to provide very high-order accuracy for the convection diffusion problem. The main tool is a polynomial reconstruction based on the mean-value to provide the best order. Numerical examples are proposed to show the method efficiency. Key–Words: Finite Volume, very high-order, convection-diffusion, polynomial… (More)

- Stéphane Clain, Gaspar José Machado
- Computers & Mathematics with Applications
- 2014

The time discretization of a very high-order finite volume method may give rise to new numerical difficulties resulting into accuracy degradations. Indeed, for the simple onedimensional unstationary convection-diffusion equation for instance, a conflicting situation between the source term time discretization and the boundary conditions may arise when using… (More)

- Diogo Lopes, Stéphane Clain, Rui M S Pereira, Gaspar J Machado, Georgi Smirnov, Igor Vasilevskiy
- International journal for numerical methods in…
- 2017

Breast reduction is one of the most common procedures in breast surgery. The aim of this work is to develop a computational model allowing one to forecast the final breast geometry according to the incision marking parameters. This model can be used in surgery simulators that provide preoperative planning and training, allowing the study of the origin of… (More)