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Reconfiguration of Radial Distribution Systems: An Efficient Mathematical Model
(2021-07-01)
For a few decades, researchers try to reach a better solution by proposing new models or methods for distribution system reconfiguration (DSR) problem. This paper presents an efficient model for reconfiguration of radial ...
Flocculation model applied to adjust operating conditions as flow changes
(2017-01-01)
Higher flows in the flocculation stage of water and wastewater treatment systems can be dealt with by adapting the operating conditions. This study investigates the changes required to maintain the flocculation efficiency. ...
Consistency between light-front quantization and covariantization for zero modes
(2005-06-21)
In the light-cone gauge choice for Abelian and non-Abelian gauge fields, the vector boson propagator carries in it an additional spurious or unphysical pole intrinsic to the choice requiring a careful mathematical treatment. ...
A NEW MATHEMATICAL MODEL FOR THE CUTTING STOCK/LEFTOVER PROBLEM
(Sociedade Brasileira de Pesquisa Operacional, 2015-12-01)
ABSTRACT This paper addresses the cutting stock/leftover problem (CSLP), which differs from the ordinary cutting stock problem (CSP) by retaining stock leftovers that can be cut in the future to meet new demands. Therefore, ...
Online distance mathematics education in Brazil: research, practice and policy
(2010)
In this article, we address online distance mathematics education research and practice in Brazil, which are relative newcomers to the educational scene. We present the national context of education in Brazil, highlighting ...
Movimentos de Teorizações em Educação Matemática
(2016-08-01)
In this essay, we show a discussion about a process of theorization in Mathematics Education. In the first part, by means of an interview textualization, we elaborated a theorization movement about mathematical preparation ...
Comparison of non-linear models for describing growth of Guzerat beef cattle females
(Empresa Brasil Pesq Agropec, 2000-09-01)
Data on growth and reproduction of 573 females Guzerat beef cattle born between 1961 and 1985, at Fazenda Canoas, located in the county of Curvelo, MG, Brazil, were used to obtain a growth pattern for the breed, through ...
A review of mathematical optimization models applied to the sugarcane supply chain
(2021-01-01)
Sugarcane is a product of great economic relevance and, as well as its use for the production of different types of sugar, it is also a renewable source for the production of bio-fuels, other bio-products, and electricity. ...
Mathematical models and a heuristic method for the multiperiod one-dimensional cutting stock problem
(2016-03-01)
The multiperiod cutting stock problem arises in the production planning and programming of many industries that have the cutting process as an important stage. Ordered items are required in different periods of a finite ...