Integer Variables
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. The electric boat charging problem
Abstract Paper aims This paper studies a new optimization problem called the Electric Boat Charging Problem (EBCP), which is based on the application of electric mobility in a river transport operation problem. Originality This work pioneers the studies of the electric mobility on the river operations, by proposing the EBCP. This problem includes real feat
Prod.. Publicado em: 23/09/2019
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2. Spatial Forest Planning for Optimized Harvest Scheduling
ABSTRACT The aim of this study was to develop a mathematical model for the spatial forest planning of harvest activity scheduling. Thirty-eight (38) blocks were formed from stands aged 13 to 17 years considering a total area limit set to 350 hectares. The model was built in Excel ® spreadsheet and solved by CPLEX® optimization software using the Branch an
Floresta Ambient.. Publicado em: 07/02/2019
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3. Evolutionary Design of Engineering Constructions
Abstract The basic information required to utilize one of possible computation tools/algorithms (mainly the evolution strategy) to solve a wide class of real practical engineering optimization problems is presented and discussed in the present paper. The effectiveness of the considered method is demonstrated by the possibility of the use of different form o
Lat. Am. j. solids struct.. Publicado em: 04/06/2018
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4. Classical and stochastic mine planning techniques, state of the art and trends
Abstract Determination of the best possible ultimate pit for an open pit mine is a fundamental subject that has undergone a highly evolutionary process, reviewed in this study, since the correct choice carries substantial economic impact for the industry. The correct choice can be very beneficial for project analysis, whereas an incorrect choice has the pote
REM, Int. Eng. J.. Publicado em: 2018-04
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5. A multiobjective metaheuristic approach for the integrated vehicle and crew scheduling
AbstractThe integrated vehicle and crew scheduling problem is a hard Combinatorial Optimization problem widely studied over the years. Taking into consideration the range of variables related to the planning process of vehicles and drivers, there are several practical characteristics of the problem that are not reflected in the solutions generated computatio
J. Transp. Lit.. Publicado em: 2016-06
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6. OPTIMIZATION WITH LINEAR COMPLEMENTARITY CONSTRAINTS
A Mathematical Program with Linear Complementarity Constraints (MPLCC) is an optimization problem where a continuously differentiable function is minimized on a set defined by linear constraints and complementarity conditions on pairs of complementary variables. This problem finds many applications in several areas of science, engineering and economics and i
Pesqui. Oper.. Publicado em: 2014-12
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7. Small Solid Propellant Launch Vehicle Mixed Design Optimization Approach
ABSTRACT: For a small country with limited research budget and lack of advanced space technology, it is imperative to find new approaches for the development of low-cost launch vehicles (LV), which is, among all possibilities, an interesting option for rapid access to space, focused on integration of acquired components complemented with indigenously develop
J. Aerosp. Technol. Manag.. Publicado em: 2014-09
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8. Global optimization of capacity expansion and flow assignment in multicommodity networks
This paper describes an exact algorithm to solve a nonlinear mixed-integer programming model due to capacity expansion and flow assignment in multicommodity networks. The model combines continuous multicommodity flow variables associated with nonlinear congestion costs and discrete decision variables associated with the arc expansion costs. After establishin
Pesqui. Oper.. Publicado em: 16/07/2013
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9. Application of mixed-integer linear programming in a car seats assembling process
In this paper, a decision problem involving a car parts manufacturing company is modeled in order to prepare the company for an increase in demand. Mixed-integer linear programming was used with the following decision variables: creating a second shift, purchasing additional equipment, determining the required work force, and other alternatives involving new
Pesquisa Operacional. Publicado em: 2011-12
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10. Algorithms for nonlinear programming problems with integer and continuous variables. / Algoritmos para problemas de programação não-linear com variáveis inteiras e contínuas.
Muitos problemas de otimização envolvem tanto variáveis inteiras quanto contínuas e podem ser modelados como problemas de programação não-linear inteira mista. Problemas dessa natureza aparecem com freqüência em engenharia química e incluem, por exemplo, síntese de processos, projeto de colunas de destilação, síntese de rede de trocadores de ca
Publicado em: 2009
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11. Conditions of p-adic Solubility of Pars of Diagonal Forms and Some Special Cases. / Condições de solubilidade p-ádica de pares de formas diagonais e alguns casos especiais
This text is above solvability in systems of two forms additive over p-adics fields: with of degree k and variables n >4k at lesat p >3k4; with of degree an k odd integer at least n >6k+1 variables; and with of degree 5 and p >101 for n 31 variables, and for all p with n 36 variables, with the possible exceptions of p = 5 and p = 11.
Publicado em: 2009
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12. Conditions of p-adic Solubility of Pars of Diagonal Forms and Some Special Cases. / Condições de solubilidade p-ádica de pares de formas diagonais e alguns casos especiais
This text is above solvability in systems of two forms additive over p-adics fields: with of degree k and variables n >4k at lesat p >3k4; with of degree an k odd integer at least n >6k+1 variables; and with of degree 5 and p >101 for n 31 variables, and for all p with n 36 variables, with the possible exceptions of p = 5 and p = 11.
Publicado em: 2009