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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 ...
Efficient very-high-gravity fermentation of sugarcane molasses by industrial yeast strains
(2016-06-01)
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 ...
Utilizing Primary Energy Savings And Exergy Destruction To Compare Centralized Thermal Plants And Cogeneration/trigeneration Systems
(Pergamon-Elsevier Science LTDOxford, 2017)
A study of the effect of high inlet solids loading on a cyclone separator pressure drop and collection efficiency
(Elsevier Science SaLausanneSuíça, 2000)
High Nd3+→Yb3+ energy transfer efficiency in tungsten-tellurite glass: A promising converter for solar cells
(2017-05-01)
This work reports on the energy transfer efficiency for Nd3+/Yb3+ co-doped tellurite glasses (80TO2-20WO3, in mol%,). The correlation between Yb3+ ion concentration and the downconversion mechanism was investigated using ...
Barriers to the adoption of energy-efficient technologies in the building sector: A survey of Brazil
(2021-12-01)
The building sector is responsible for 51% of the electricity consumed in Brazil, and about 10% of the total greenhouse gas emissions. These numbers continue to grow, despite significant efforts made by the government to ...
Compressive strength of high-strength concrete masonry grouted prisms
(Elsevier B.V., 2019-03-30)
An experimental program was devised to assess the influence of the compressive strength of the grout on the compressive strength of masonry constructed with high-strength concrete masonry units. Three different compressive ...