Now showing items 1-10 of 15199
Efficiency analysis of an isolated high voltage gain converter operating in resonant and non-resonant mode
This paper presents an efficiency investigation of an isolated high step-up ratio dc-dc converter aimed to be used for energy processing from low-voltage high-current energy sources, like batteries, photovoltaic modules ...
High finite-sample efficiency and robustness based on distance-constrained maximum likelihood
(Elsevier Science, 2015-03)
Good robust estimators can be tuned to combine a high breakdown point and a specified asymptotic efficiency at a central model. This happens in regression with MM- and -estimators among others. However, the finite-sample ...
Efficiency Measurements in Induction Motors: Comparison of Standards
(Institute Of Electrical And Electronics Engineers, 2015-08)
Recently, given the need to reduce the emission of greenhouse effect gases and limiting the steady increase in energy demand, were have proposed new standards of efficiency levels of electric motors. From them have been ...
Design of a Comb Generator for High Capacity Coherent-WDM Systems
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCPISCATAWAY, 2012)
This paper presents a theoretical model developed for estimating the power, the optical signal to noise ratio and the number of generated carriers in a comb generator, having as a reference the minimum optical signal do ...
Investment recovery period in electric motor of higher efficiency in pumping for irrigation
(Associação Brasileira de Engenharia Agrícola (SBEA), 2013-04-01)
Neste trabalho, ajustou-se um modelo matemático para quantificar o efeito do rendimento do motor elétrico sobre os custos de um sistema de bombeamento para irrigação na estrutura tarifária de energia elétrica convencional ...
Mixed-gas inductively coupled plasma atomic emission spectrometry using a direct injection high efficiency nebulizer
(Analytical and Bionalytical Chemistry, 2017)
Utilizing Primary Energy Savings And Exergy Destruction To Compare Centralized Thermal Plants And Cogeneration/trigeneration Systems
(Pergamon-Elsevier Science LTDOxford, 2017)
Efficient very-high-gravity fermentation of sugarcane molasses by industrial yeast strains
In this study industrial strains were inoculated, in successive cycles, at high cell density into a sugarcane-based juice containing normal (22%, w/v) and very high sucrose (30%, w/v) levels and supplemented with peptone ...