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The presence of fungi on contact electrical stimulation electrodes and ultrasound transducers in physiotherapy clinics
(Elsevier B.V., 2011-12-01)
Objectives To evaluate the presence of fungi on contact electrodes and ultrasound transducers from physiotherapy clinics.Design Quantitative study conducted at the Laboratory of Microbiology and Immunology, Faculty of ...
Development of a piezoelectric transducer coupling system for structural health monitoring applications
(2019-10-01)
Piezoelectric transducers have been widely used in structural health monitoring (SHM) frameworks. Recently, preliminary applications of these devices have emerged in the field of ultrasonic waves based on transmitter/receiver ...
Geração de imagens por ultrassom utilizando as técnicas sparse arrays e plane wave
(Universidade Tecnológica Federal do ParanáCuritibaBrasilPrograma de Pós-Graduação em Engenharia Elétrica e Informática IndustrialUTFPR, 2018-12-13)
Nowadays, the major difficulties to improve the quality of the images using the ultrasonic techniques are related to the high number of shots used for transducer excitation, large quantities of storage data and the necessary ...
Experimental Apparatus for Roll-Wave Measurements and Comparison with a 1D Mathematical Model
(Asce-amer Soc Civil Engineers, 2017-11-01)
An experimental approach to examine the instabilities present on free surfaces of non-Newtonian fluid flow occurring in inclined channels is presented. When these flows occur in favorable conditions of inclination and ...
Mapeador de obstáculos tridimensionais por sensor ultrassônico
(Universidade Tecnológica Federal do ParanáToledoBrasilEngenharia EletrônicaUTFPR, 2019-12-06)
In this course completion work a prototype of a system to recognize three-dimensional obstacles through ultrasonic sensor was developed. The system must output signals through an ultrasound sensor that, upon return after ...
Avaliação da distribuição da densidade em MDF a partir da técnica da onda de ultra-som
(2007-06-01)
The goal of this research was to determine the density distribution in medium density fiberboard (MDF), manufactured with polyurethane derived from castor oil using, ultrasonic wave technique. The equipment used in this ...
Avaliação da distribuição da densidade em MDF a partir da técnica da onda de ultra-som
(2007-06-01)
The goal of this research was to determine the density distribution in medium density fiberboard (MDF), manufactured with polyurethane derived from castor oil using, ultrasonic wave technique. The equipment used in this ...