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Distortional buckling of simple lipped channel in bending results of the experimental analysis versus direct strength methods
(2006-12-01)
Cold-formed steel members are subject to failure caused by buckling, normally under loads smaller than those corresponding to partial or total yielding of the cross section. The buckling of members in bending can be ...
Resistive Shaping of Interconnected Low-Voltage Microgrids Operating Under Distorted Voltages
(2021-01-01)
Beyond the impacting presence of non-linear loads, low-voltage microgrids also experience low energy efficiency and resonance phenomena when operating interconnected to a distribution grid that suffers from distorted ...
Políticas educacionais e distorção idade/série: contextos e desafios da Região Sul
(Universidade do Vale do Rio dos Sinos, 2021-02-26)
This thesis deals with the educational policies on the distortion age / grade in the Basic Education, considering the context and challenges of the Brazilian Southern Region States, from 1996 to 2018. Specifically, the ...
Políticas educacionais e distorção idade/série: contextos e desafios da Região Sul
(Universidade do Vale do Rio dos Sinos, 2021-02-26)
This thesis deals with the educational policies on the distortion age / grade in the Basic Education, considering the context and challenges of the Brazilian Southern Region States, from 1996 to 2018. Specifically, the ...
Tracking futsal players with a wide-angle lens camera: accuracy analysis of the radial distortion correction based on an improved Hough transform algorithm
(Taylor & Francis Ltd, 2017-01-01)
The aim of this study was to assess the applicability and reliability of a single wide-angle lens GoPro r camera for tracking and kinematics analysis of futsal players. An official game of a Brazilian professional team in ...
Fault Ride-Through Enhancement of DFIG-Based Wind Generation considering Unbalanced and Distorted Conditions
(Institute of Electrical and Electronics Engineers, 2012-09)
A control strategy is proposed to enhance the operation, under network disturbances, of a wind turbine driven doubly fed induction generator (DFIG). The scheme allows us to overcome low voltages, imbalances, and harmonic ...
A novel single-phase ZCS-PWM high power factor boost rectifier
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Receiver Cancellation Technique for Nonlinear Power Amplifier Distortion in SDMA-OFDM Systems
(Institute of Electrical and Electronics Engineers, 2007-09)
Space-division multiple access (SDMA) and orthogonal frequency-division multiplexing (OFDM) can be combined to design a robust communications system with increased spectral efficiency and system capacity. This combination ...
Double-differential cross sections for ionization of H2O by fast bare O ions: Comparison with continuum-distorted-wave eikonal-initial-state calculations in prior and post forms
(American Physical Society, 2013-05)
O vapor in a static gas condition which allowed us to deduce the absolute value of the cross sections. The single-differential cross sections (SDCS) and the total cross sections have also been obtained. The DDCS as well ...
Emergence of ferromagnetism and Jahn-Teller distortion in LaMn1−xCrxO3 (x < 0.15)
(American Physical Society, 2013-06-10)
The emergence of a ferromagnetic component in LaMnO3 with low Cr-for-Mn substitution has been studied by x-ray absorption spectroscopy and x-ray magnetic circular dichroism at the Mn and Cr K edges. The local magnetic ...