The Makey Makey Inclusive Tangible Interface and its Educational Perspectives

Traditional human-computer interaction using a keyboard and mouse attached to a computer has been modified with the emergence of technologies that incorporate resources into clothing, furniture and everyday objects. These technologies open up new opportunities for designers to create innovative forms of interaction based on gestures, body movements or physical manipulation of real objects. One such innovation is the tangible interface, which allows computer users to interact with digital systems through the manipulation of physical objects. The Makey Makey interface, for example, is a printed circuit with a microcontroller that allows everyday objects to be used as computer keys. This paper presents a literature review of reported experiences with Makey Makey, the objective being to explore new educational and inclusive perspectives. For that, the main researches related to Makey Makey from 2012. The methodology used is characterized by the Goal-Question-Metric (GQM) protocol and included 14 articles in total. The results showed that the circuit can be used in several contexts, with important reports from the medical field with patients with cerebral palsy from the perspective of inclusion and motivational activities with the elderly. In addition, it was possible to verify that the contexts are varied, including entertainment, fun, games and a multitude of possibilities in the pedagogical area, especially if we consider their insertion in Early Childhood Education, integrating music and stimulating inventiveness.Ministerio de Ciencia, Innovación y Universidades PID2019-105455GB-C31Junta de Andalucía P20_0064

Measurement of the aperture area: an edge enhancement algorithms comparison

5 f. : il.The Dimensional Metrology Laboratory of Brazilian National Institute of Metrology, Standardization and Industrial Quality (Inmetro) is developing a system for measuring the area of circular apertures used in radiometric and photometric measurements. The system is based on the visualization of the area of the aperture with a microscope and the definition of the coordinates of the edges on the captured image. Once this coordinates are obtained, the area of the aperture is calculated using an average radius. In this context it is important to choose an efficient edge enhancement algorithm. This work presents a comparison between different algorithms for edge enhancement applied in the measurement of aperture area. We also discusses the related uncertainty concerning the measurement system, evaluating these diverse algorithms

Calibration of circular aperture area using vision probe at inmetro

Circular aperture areas are standards of high importance for the realization of photometric and radiometric measurements, where the accuracy of these measures is related to the accuracy of the circular aperture area calibrations. In order to attend the requirement for traceability was developed in Brazilian metrology institute, a methodology for circular aperture area measurement as requirements from the radiometric and photometric measurements. In the developed methodology apertures are measured by non-contact measurement through images of the aperture edges captured by a camera. These images are processed using computer vision techniques and then the values of the circular aperture area are determined

Calibration of circular aperture area using vision probe at inmetro

Circular aperture areas are standards of high importance for the realization of photometric and radiometric measurements, where the accuracy of these measures is related to the accuracy of the circular aperture area calibrations. In order to attend the requirement for traceability was developed in Brazilian metrology institute, a methodology for circular aperture area measurement as requirements from the radiometric and photometric measurements. In the developed methodology apertures are measured by non-contact measurement through images of the aperture edges captured by a camera. These images are processed using computer vision techniques and then the values of the circular aperture area are determined

Commercial aircraft trajectory optimization to reduce flight costs and pollution: metaheuristic algorithms

Aircraft require significant quantities of fuel in order to generate the power required to sustain a flight. Burning this fuel causes the release of polluting particles to the atmosphere and constitutes a direct cost attributed to fuel consumption. The optimization of various aircraft operations in different flight phases such as cruise and descent, as well as terminal area movements, have been identified as a way to reduce fuel requirements, thus reducing pollution. The goal of this chapter is to briefly explain and apply different metaheuristic optimization algorithms to improve the cruise flight phase cost in terms of fuel burn. Another goal is to present an overview of the most popular commercial aircraft models. The algorithms implemented for different optimization strategies are genetic algorithms, the artificial bee colony, and the ant colony algorithm. The fuel burn aircraft model used here is in the form of a Performance Database. A methodology to create this model using a Level D aircraft research flight simulator is briefly explained. Weather plays an important role in flight optimization, and so this work explains a method for incorporating open source weather. The results obtained for the optimization algorithms show that every optimization algorithm was able to reduce the flight consumption, thereby reducing the pollution emissions and contributing to airlines’ profit margins