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Study of recycling printed circuit boards: alternative methods to attach components in printed circuit boards
(Universidad Nacional de Colombia Sede Medellín, 2014-08-26)
Printed circuit boards (PCB), which form the basis of the electronics industry, generate wastes that are difficult to dispose of and recycle due to the diversity of their materials and components and their difficult ...
Plotter de baixo custo para prototipação de placas de circuito impresso
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Eletrônica, 2013-05-10)
The industrial outsourced printed circuit boards production are economically viable for expressive ordering quantities. In the stage of boards layout development and validation, in which few amounts are produced, alternative ...
Use of a dynamic absorber in the case of a vibrating printed circuit board of complicated boundary shape
(Academic Press Ltd-elsevier Science Ltd, 2000-02)
An experimental investigation was carried out to examine the feasibility of using a dynamic absorber when a printed circuit board (PCB) of complicated boundary shape operates under resonance conditions. The dynamic response ...
Bioextraction of copper from printed circuit boards: influence of initial concentration of ferrous iron
(TMSSan Antonio, Texas, 2013)
Printed circuit boards are found in all electric and electronic equipment and are particulary problematic to recycle because of the heterogeneous mix of organic material, metals, and fiberglass. Additionally, printed ...
A Multiprobe Heat Pulse Sensor for Soil Moisture Measurement Based on PCB Technology
(Ieee-inst Electrical Electronics Engineers Inc, 2019-02-01)
Heat dissipation sensors operate based on the temperature dependence of the transient heat conduction within the soil, which is a function of the soil characteristics and its water content. After a heat pulse with controlled ...