In this paper, was developed the project of an audio amplifier of 5.1 channels in order to use as a home theater. The amplifiers are all constructed in printed circuit boards, using audio transistors. Initially, was ...

With the emergence of global positioning systems (GPS), several applications could be designed based on location services, logistics chains, games, agriculture, business, security, among other applications. In this way, ...

Robotics is an attractive and motivating tool for students of any level. Using robots in education can help to arouse students’ interest in many subjects. This work presents the development and implementation of an educational ...

This work demonstrates the potential for application of negative curvature hollow core fibers (HC-NCF) as efficient sensors to monitor three gases simultaneously, methane (CH4), carbon monoxide (CO) and nitrogen monoxide ...

The search for alternative sources of energy is a recurring theme in research due to the growth of world energy demand. The development of energy harvesting techniques and devices is required. This work focused on studying ...

In the commercial sphere, attempts at fraud and counterfeiting have caused several problems for manufacturers and the consumer market. In view of this scenario, in order to promote greater reliability and security in ...

Extension projects are a great gateway to the development of science and engineering in the university environment. The Baja SAE project is no different, as it allows different fields of engineering to be put to the test ...

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This final paper consists of the elaboration of a proposal for the construction of a musical instrument, whose basic structure is similar to the Hammond organ added to some proposals for technological innovation. The Hammond ...

This work presents a simplified mathematical model for solving the reactive optimal power flow problem with continuous and discrete control variables. The distributed slack bus modeling was used in the tested electrical ...