Manuel J. C. S. Reis

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In this paper we present a new segmentation method for the multidimensional multiscale parser (MMP) algorithm. In previous works we have shown that, for text and compound images, MMP has better compression efficiency than state-of-the-art transform-based encoders like JPEG2000 and H.264/AVC; however, it is still inferior to them for smooth images. In this(More)
The main aim of this paper is to analyze the behavior of the three-phase squirrel cage induction motor under different voltage fluctuation levels. To achieve this goal several simulations were performed using the EMTP/ATP tool. Here we present how mechanical torque, speed and efficiency parameters varied with different levels of voltage fluctuation and(More)
Purpose – The purpose of this paper is to summarise the authors’ experience in furthering the educative use of Information Technology and the internet in the primary schools of northeast Portugal. The main goal of the Programme “Internet in Schools” is the development of Information Technology in Portuguese schools. It focuses on the use of the technology,(More)
This paper reviews instrumented hip joint replacements, instrumented femoral replacements and instrumented femoral fracture stabilizers. Examination of the evolution of such implants was carried out, including the detailed analysis of 16 architectures, designed by 8 research teams and implanted in 32 patients. Their power supply, measurement, communication,(More)
The ability of the Arduino platform to enhance student interest and performance in science, technology, engineering, and mathematics (STEM) courses, while fostering skills that are important prerequisites for future IT careers, has been proven more than once in the past years. But can the future be crafted without the past? We believe that many past(More)
This paper discusses signal and image reconstruction in connection with undergraduate electrical engineering education. It briefly reviews some of the basic signal and image reconstruction techniques, and presents two Java applets that have been found useful in the context. The applets have easy-to-use, friendly interfaces, and can be used as tools to teach(More)