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Computational modeling for efficient long distance ore transport using pipelines
(Elsevier, 2014)
The term efficiency in hydraulic transport system design and operation has several possible interpretations.
Whether it may stand for energy consumption, it may also aim to the minimization of the water
or the carbon ...
Methodology for calculating critical values of relevance measures in variable selection methods in data envelopment analysis
(Elsevier, 2021)
The selection of input and output variables is a key step in evaluating the relative efficiency of decision- making units (DMUs) in data envelopment analysis (DEA). In this paper, we present a methodology based on Monte ...
Higher education efficiency frontier analysis: A review of variables to consider
(Czech University of Life Sciences, 2020-09-30)
The measurement of efficiency in higher education has gained a growing interest in recent years, especially due to the expansion of the university system. This paper provides a review of the literature on efficiency in ...
Performance and efficiency in Colombia's power distribution system: Effects of the 1994 reform
We assess evolution in performance, efficiency and productivity of Colombia's power distribution utilities before and after the 1994 regulatory reform that introduced electricity market activities for the power sector in ...
Measuring efficiency in the Chilean wine industry: a robust DEA approach
(2021)
The Chilean wine industry has been quite innovative in terms of winemaking and trading. Yet, to survive in this competitive industry, wine managers should be aware of the relevance of monitoring their performance. In this ...
Response of bermudagrass to enhanced-efficiency fertilizers, application strategies and release under tropical conditions
(2020-01-01)
Nitrogen fertilization is an important input for crop yield; however, it can result in detrimental environmental effects due to low use efficiency of regular N sources. This study evaluated the effects of N fertilizers and ...
Integrated single-stage converters with Tri-state modulation suitable for photovoltaic systems
(2011-12-28)
The aim of this work is to present two topological simplified converters named Tri-state Boost and Tri-state Buck-Boost integrated single-phase inverters. An important operation capability can be achieved for these converters ...
Integrated single-stage converters with Tri-state modulation suitable for photovoltaic systems
(2011-12-28)
The aim of this work is to present two topological simplified converters named Tri-state Boost and Tri-state Buck-Boost integrated single-phase inverters. An important operation capability can be achieved for these converters ...
Eficiência produtiva na agropecuária dos municípios do Rio Grande do Sul
(Universidade Federal de Santa MariaBRAdministraçãoUFSMPrograma de Pós-Graduação em Administração, 2014-03-28)
The objective of this study was to evaluate the efficiency of agricultural production in the municipalities of Rio Grande do Sul and identify their determinants in 2006. Thus, the method of data envelopment analysis (DEA) ...
Determinação da eficiência ambiental relativa no setor de aviação comercial : uma abordagem DEA
(Universidade do Vale do Rio dos Sinos, 2012-03-30)
The Environmental initiatives in the aero transportation have been the topic of international debates. The maximum efficiency of the natural resources have to be achieved, and at the same time, there must have ...