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On the efficiency of an alternative codification for multiobjective service restoration in electric distribution networks
(2009-12-01)
This paper proposes an alternative codification to solve the service restoration in electric power distribution networks using a SPEA2 multiobjective evolutionary algorithm, assuming the minimization of both the load not ...
Filtro para ensaio de descargas parciais em transformadores de potência
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilTecnologia em Automação IndustrialUTFPR, 2017-12-15)
This work aims at the development and implementation of an active filter to limit the cutoff frequency for performing the measurement of partial discharges in power transformers in accordance with the requirements of ...
Use of slag/sugar cane bagasse ash (SCBA) blends in the production of alkali-activated materials
(2013-08-14)
Blast furnace slag (BFS)/sugar cane bagasse ash (SCBA) blends were assessed for the production of alkali-activated pastes and mortars. SCBA was collected from a lagoon in which wastes from a sugar cane industry were poured. ...
Use of slag/sugar cane bagasse ash (SCBA) blends in the production of alkali-activated materials
(2013-08-14)
Blast furnace slag (BFS)/sugar cane bagasse ash (SCBA) blends were assessed for the production of alkali-activated pastes and mortars. SCBA was collected from a lagoon in which wastes from a sugar cane industry were poured. ...
Avaliação da distorção harmônica em uma instituição de ensino utilizando o método design thinking
(Universidade Tecnológica Federal do ParanáCornelio ProcopioBrasilEngenharia ElétricaUTFPR, 2020-11-19)
By definition, harmonic is a periodic wave component that has an integer multiple frequency of the fundamental (usually 60Hz in Brazil). Harmonic distortions can cause severe equipment damage and endanger the lives of ...
Eels: Electric Snakes
(Revista Computación y Sistemas; Vol. 2 No. 2 y No. 3, 1998-12-15)
Abstract. This paper presents the incorporation ofa new internal force for active contours. This internal force is generated by an electric charge, distributed al/-over the active contour. Our extended contour model can ...
Solar cycle effects on the electric fields in the equatorial ionosphere
(American Geophysical Union, 1977-11-01)
The horizontal east‐west electric fields in the equatorial F region are estimated by using the vertical electron drift data over Jicamarca, Peru. The reversal of the electric field from west to east near the sunrise hours ...
Brain electrical activity discriminant analysis using Reproducing Kernel Hilbert spaces
(Pereira: Universidad Tecnológica de PereiraFacultad de IngenieríaDoctorado en Ingeniería, 2021)
Description of electric field-dependent dielectric permittivity in PMN ceramics
(2019-01-01)
The temperature dependences of the linear and nonlinear components of the dielectric permittivity of PMN ceramics were determined as a function of bias electric fields. The influence of the applied bias electrical field, ...