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High Frequency Harmonic Distortions Measured In A Brazilian Solar Farm
(IEEENew York, 2016)
Electrical modelling and power quality analysis of three-phase induction furnace
(2014-01-01)
The induction furnaces are loads having high power and nonlinear characteristic. The power consumption depends on the stage of melting metal in its interior and can cause serious problems on the electric power distribution ...
Formação continuada em botânica para professores da rede pública na cidade de Miracatu, SP
(Universidade Estadual Paulista (Unesp), 2015-09-23)
Continued formation about plant morphology for teachers of the public school system with theory and practice classes is necessary to improve the teaching of botany and quality of education.
Simplified stress and simplified silhouette coefficient to a faster quality evaluation of multidimensional projection techniques and feature spaces
(2015-09-18)
Several multidimensional projection techniques have been proposed in literature over the last years. The quality of those techniques can be evaluated based on the dimensionality reduction or the clusters quality. The first ...
Robust control applied to power flow control in single-phase inverter with LCL filter, using droop control and D-stability
(2012-12-01)
This paper proposes a new methodology to control the power flow between a distributed generator (DG) and the electrical power distribution grid. It is used the droop voltage control to manage the active and reactive power. ...
A novel high frequency ac voltage regulator with active power factor correction
(2003-01-01)
This paper describes a novel high frequency ac voltage-regulator using a single ended primary inductance converter as power stage, and active power factor correction through the use of variable hysteresis control technique. ...
Inversor CS Boost monofásico em aplicações com fontes renováveis
(2010-12-01)
This paper presents a new methodology for the operation and control of a single-phase current-source (CS) Boost Inverter, considering that the conventional current-source inverter (CSI) has a right-half-plane (RHP) zero ...
Phytochrome and light influence on germination and vigor of ocimum gratissimum L. (Lamiaceae) seeds under high irradiance conditions
(2002-02-27)
Ocimum gratissimum seed germination (% germination and vigor) has been found as phytochrome dependent, having a typical High Irradiant Response (HIR). Seven treatments were tested: daylight (DL), red (R), far-red (FR), ...
Strategic high quality quartz supply for fusion into silica glass
(Cairns, Austrália, 2012-07-10)
An extensive i n loc o survey o f main quartz producing regions in an extensive in loco survey of main quartz producing regions in Brazil integrated with physicochemical characterization studies of quartz lascas and their ...
Bridgeless interleaved boost PFC converter with variable duty cycle control
(2011-12-28)
This paper proposes a bridgeless boost interleaved PFC (power factor correction) converter with variable duty cycle control. The application of bridgeless technique causes reduction of conduction losses, while the interleaving ...