Encontrados 30 documentos, a visualizar página 1 de 3
ClimaWin : an intelligent window for optimal ventilation and minimum thermal loss
Pinto, Sandro; Castro, Tiago; Brito, Nuno; Gomes, Tiago M.; Tavares, Adriano; Mendes, José A.; Cabral, JorgeIn this paper the ClimaWin concept is introduced. The ClimaWin project's main goals are to improve both indoor air quality and the energy efficiency of new and refurbished buildings, through the use of novel green smart windows. Generally, in order to improve windows' energy efficiency better insulation materials are used in windows frames and glasses. However, this approach leads to a severe deterioration of i...
Exploiting Template Metaprogramming to customize an object-oriented operating s...
Pinto, Sandro; Castro, Tiago; Mendes, José A.; Lopes, Sérgio; Ekpanyapong, M.; Tavares, AdrianoNowadays, the growing complexity of embedded systems demands for configurability, variability and reuse. Conditional compilation and object-orientation are two of the most applied approaches in the management of system variability. While the former increases the code management complexity, the latter leverages the needed modularity and adaptability to simplify the development of reusable and customizable softwa...
Experiments with embedded system design at UMinho and AIT
Tavares, Adriano; Ekpanyapong, M.; Cabral, Jorge; Cardoso, Paulo Francisco da Silva; Mendes, Jos?? A.; Monteiro, Jo??o L.Nowadays, embedded systems are central to modern life, mainly due to the scienti???c and technological advances of the last decades that started a new reality in which the embedded systems market has been growing steadily, along with a monthly or even weekly emergence of new products with di???erent applications across several domains. This embedded system ubiquity was the drive for the following questio...
Effects of ethanolic extract of leaves of Lafoensia pacari A. St.-Hil., Lythrac...
Guimarães,Heloisa Alves; Nascimento,Marcus Vinícius M.; Tavares,Adriano; Galdino,Pablinny Moreira; Paula,José Realino de; Costa,Elson AlvesLafoensia pacari A. St.-Hil., Lythraceae, popularly known as pacari, is a Cerrado's native specimen; the stem bark extract is used in folk for pain and inflammation, also showing sedating activity. This study aimed to evaluate the analgesic and anti inflammatory activities of ethanol extract from pacari leaves (EEPL). These activities were verified in mice. The previous treatment with EEPL 1.0 g/kg showed antin...
Smoking in elderly in Brazilian homes for the aged.
Carvalho, Anderson A; Gomes, Lucy; Tavares, Adriano BuenoTo know the prevalence of elderly individuals (more than 60 years old), who are regular smokers, interned in Homes for the Aged in Distrito Federal.13 Homes for the Aged were studied in Distrito Federal. The identification of the smokers was made through the information given by the local nursing staff, added to the researcher observation and the confirmation provided by the elderly individuals themselves. They...
Detection of small bowel tumors in endoscopic capsule images by modeling non-ga...
Barbosa, Daniel; Ramos, Jaime; Tavares, Adriano; Lima, C. S.This paper presents an approach to the automatic detection of small bowel tumors by processing endoscopic capsule images. The most significant texture information is selected by using wavelet processing and captured in the image domain from an appropriate synthesized image. Co-occurrence matrices are used to derive texture descriptors by modeling second order statistics of color image levels. These descriptors ...
Non-stationary biosignal modelling
Lima, C. S.; Tavares, Adriano; Correia, J. H.; Cardoso, Manuel J.; Barbosa, DanielSignals of biomedical nature are in the most cases characterized by short, impulse-like events that represent transitions between different phases of a biological cycle. As an example hearth sounds are essentially events that represent transitions between the different hemodynamic phases of the cardiac cycle. Classical techniques in general analyze the signal over long periods thus they are not adequate to mode...
WinCE-based embedded system for control of an industrial screw machine
Moreira, António H. J.; Fonseca, Jaime C.; Tavares, AdrianoDocumento submetido para revisão pelos pares. [A publicar em IEEE IECON 2009 Proceedings] ; Nowadays, industrial systems frequently require the control of some industrial process and monitoring of relevant data about the process, using a friendly visual environment. Normally, is used a PLC (Programmable Logical Controller) to control the process and assure that the timing requirements (deadlines) are satisfied...
Aspect-oriented fault tolerance for real-time embedded systems
Afonso, Francisco; Silva, Carlos A.; Brito, Nuno; Montenegro, Sérgio; Tavares, AdrianoReal-time embedded systems for safety-critical applications have to introduce fault tolerance mechanisms in order to cope with hardware and software errors. Fault tolerance is usually applied by means of redundancy and diversity. Redundant hardware implies the establishment of a distributed system executing a set of fault tolerance strategies by software, and may also employ some form of diversity, by using dif...
Application-level fault tolerance in real-time embedded systems
Afonso, Francisco; Silva, Carlos A.; Tavares, Adriano; Montenegro, SérgioCritical real-time embedded systems need to make use of fault tolerance techniques to cope with operation time errors, either in hardware or software. Fault tolerance is usually applied by means of redundancy and diversity. Redundant hardware implies the establishment of a distributed system executing a set of fault tolerance strategies by software, and may also employ some form of diversity, by using different...
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