2011
Autores
Escudeiro, N; Escudeiroa, P; Sahm, S; Roth, H;
Publicação
Multinational Undergraduate Team Work: Excellence in International Capstone Projects
Abstract
The original plan to setup a permanent MUTW course unit in partners' curricula was devised in two phases. The first phase, a pilot project running for two years, was funded by the EU under the frame of an Eramus Multilateral Curriculum Development project, with the goal of designing, testing and deploying the MUTW concept. In parallel the sustainability of MUTW beyond EU funds should also be assured. The outcomes achieved in this pilot phase laid the groundwork for the second phase that aims at offering a permanent MUTW course unit in partner institutions. In this chapter we review the main outcomes of the pilot phase that led the way to set this innovative paradigm in higher education.
2011
Autores
Silva, AS; Salazar, AJ; Borges, CM; Correia, MV;
Publicação
Biomedical Engineering Systems and Technologies - 4th International Joint Conference, BIOSTEC 2011, Rome, Italy, January 26-29, 2011, Revised Selected Papers
Abstract
BIOSWIM (Body Interface System based on Wearable Integration Monitoring) is a joint multidisciplinary effort involving a number of Portuguese R&D teams. It seeks a pervasive monitoring solution for physiological and biomechanical signals from a swimmer under normal training conditions, both in and out of the water. A wearable inertial monitoring unit (WIMU) was developed in order to serve as the biomechanical data processing unit of the system. The preliminary version of the WIMU has a commercially available microcontroller and transceiver set, as well as a tri-axial accelerometer and a bi-axial gyroscope serving as sensors. Testing in and out of the water has provided promising data and contributed to design modifications. These also took into account input from athletes, trainers, and physicians. Future work includes the integration of the WIMU within the complete BIOSWIM swimsuit system, complemented by truly integrated EMG and ECG textile sensors and a chemical monitoring unit. © Springer-Verlag Berlin Heidelberg 2013.
2011
Autores
Goncalves, H; Corte Real, L; Goncalves, JA;
Publicação
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
Abstract
Automatic image registration (AIR) is still a present challenge for the remote sensing community. Although a wide variety of AIR methods have been proposed in the last few years, there are several drawbacks which avoid their common use in practice. The recently proposed scale invariant feature transform (SIFT) approach has already revealed to be a powerful tool for the obtention of tie points in general image processing tasks, but it has a limited performance when directly applied to remote sensing images. In this paper, a new AIR method is proposed, based on the combination of image segmentation and SIFT, complemented by a robust procedure of outlier removal. This combination allows for an accurate obtention of tie points for a pair of remote sensing images, being a powerful scheme for AIR. Both synthetic and real data have been considered in this work for the evaluation of the proposed methodology, comprising medium and high spatial resolution images, and single-band, multispectral, and hyperspectral images. A set of measures which allow for an objective evaluation of the geometric correction process quality has been used. The proposed methodology allows for a fully automatic registration of pairs of remote sensing images, leading to a subpixel accuracy for the whole considered data set. Furthermore, it is able to account for differences in spectral content, rotation, scale, translation, different viewpoint, and change in illumination.
2011
Autores
Keko, H; Da Rosa, MA; Sumaili, J; Miranda, V;
Publicação
2011 8th International Conference on the European Energy Market, EEM 11
Abstract
The inevitable wind power forecast errors result in differences between forecasted and observed wind power. To mitigate their economic impact, combining the wind power with pumped hydro energy storage may be used. In order to deliver a joint operational strategy for a wind power plant combined with storage, one requires reliable wind power forecasts. The forecasts commonly only consist of a single-value forecast (point forecast) for each look-ahead time. However, additional representative information concerning the forecast uncertainty may be required. In this paper, the influence of uncertainty representation daily operation for a wind power plant combined with pumped hydro storage is discussed. The paper illustrates how uncertainty representations such as Gaussian uncorrelated errors may also not be satisfactory. Based on a case study with a wind power plant combined with pumped hydro storage, organized for illustrative purposes, the paper demonstrates the need to have uncertainty representation including cross-period dependencies, in order to define a correct operation policy. © 2011 IEEE.
2011
Autores
Peito, F; Pereira, G; Leitao, A; Dias, L;
Publicação
EUROPEAN SIMULATION AND MODELLING CONFERENCE 2011
Abstract
This paper is concerned with the use of simulation as a decision support tool in maintenance systems, specifically in MFS (Maintenance Float Systems). For this purpose and due to its high complexity, in this paper the authors propose a flexible way to develop typical MFS models, for any number of machines in the workstation, spare machines and maintenance crews. Arena simulation language is used to understand a specific MFS, create the corresponding MFS model and analyze most common performance measures.
2011
Autores
Escudeiro, N; Escudeiro, P; Van Assche, K;
Publicação
Multinational Undergraduate Team Work: Excellence in International Capstone Projects
Abstract
One of the core aspects of a MUTW-like course unit is the students' project. To begin with, it should be some realistic product with a real interest to some group or community so that students feel they are really contributing with their work to some major goal. Additional care is required to assure that the system can be organized in a set of packages that are consistent with the workloads required from each of the team members. It should be taken into account that MUTW-like courses demand for a high effort on team management and this should also be accounted for when measuring workload. Another core issue is not to provide a full specification to students. The specification provided to students should have some unspecified issues to force and promote discussion and communication, thus contributing to the development of soft skills in students. In this chapter we present the main aspects related to the students' project that we have used in both editions of MUTW that ran during the pilot period, including a detailed description of the project specification that has been provided to students.
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