The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Current mobile revolution is leading to an increase of wearable health devices development and consequently a growth in ambulatory monitoring area. These systems can be applied in ambulatory diseases management and diagnosis, personal health monitoring or sports performance enhancement, providing physiological and body-area ambiance data during daily normal activities. Nowadays several devices in...
Agile Software Development (ASD) is a movement that emerged in the late 1990's and since then has been increasingly adopted by organizations. They are successful in projects characterized by rapid changes, small teams and small cycles. Implementing the same agile philosophy but with an increase of complexity, i.e., large-scale agile (LSA) development, are sometimes criticized of not being as effective...
In the medical field, the segmentation of organs and structures in the patient's body is a very important task to assist the study of morphological and pathological changes of organs. Normally, specialists perform manual segmentation, however it is time consuming, error-prone and observer-dependent. Here the experience of the expertise influences the quality of the ultimate results. This work aims...
During Urban Search and Rescue (USaR) operations in collapsed buildings, once the entrapped victims are located the extrication starts. The latter is always time consuming whilst in most cases medical monitoring and support of the victim is needed. Monitoring vital signs of victim is quite important but due to the particular post-collapse conditions of the building (fires, gas leaks, tremors/instability),...
In the end of a requirements elicitation phase, it is expectable that all information can be properly perceived by the implementation teams. In our work, we faced the problem of dealing with a large set of requirements that need to be implemented by different teams, to ensure on-time delivery. The teams are physically separated and with different working cultures and skills. The system requirements...
One of the greatest challenges of a Distribution System Operator (DSO) is to ensure continuous improvement in the quality of service, while improving efficiency and decreasing operational costs. EDP Distribuição (EDP Group), Portugal is the Low, Medium and High Voltage Distribution System Operator in the country, with more than 6 million customers, over 400 HV/MV Substation and 60 thousand MV/LV Substations,...
An overview of the multiscale/multiframe (MS/MF) 3D reconstruction scheme for Positron Emission Tomograph is presented. Nowadays, in clinical applications the image is reconstructed using a single scale or grid, i.e., the dimensions of the reconstructed volume or the projection space binning do not change during the reconstruction process. MS/MF introduces the concept of time frame to the multiscale...
For a Carrier Ethernet or MPLS-TP service provider the determination of a multipoint-to-multipoint (mp2mp) virtual connection must be done in an efficient way in order to maximise network performance. This problem can be formulated as a Steiner tree problem which is a very complex combinatorial problem, being NP-complete. In general, any transport network ideal management system should seek to balance...
The Vital Jacket® (VJ) is a wearable vital signs monitoring system that joins textiles with microelectronics. After several years of development within the university lab, it has been licensed to a start-up company. Its evolutions have focused on cardiology and sports and scaled down from a jacket to a single T-shirt. The VJ manufacturing process has recently been certified to comply with the standards...
In this work we will show that the blind source separation problem can be addressed using a linear algebra approach. Making use of the definition of congruent pencils and matrix block operations the problem is completely characterized. We also show that it is possible to have an on-line implementation of the method.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.