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Desenvolvimento de uma ferramenta computacional para dimensionamento de sistemas de elevação artificial por Gas Lift Contínuo
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia de Petróleo, 2016-11-25)
This work describes and presents a computational tool that aims to realize the design of artificial lift systems by the Continuous-Flow Gas Lift method. The continuous injection of gas into the production tubing, through ...
Lovász–Schrijver SDP-operator, near-perfect graphs and near-bipartite graphs
(Springer, 2017-03)
We study the Lovász–Schrijver lift-and-project operator (LS +) based on the cone of symmetric, positive semidefinite matrices, applied to the fractional stable set polytope of graphs. The problem of obtaining a combinatorial ...
Estudo e especificação de um sistema de instrumentação para unidades de elevação de petróleo utilizando tecnologia sem fio
(Universidade Federal do Rio Grande do NorteBRUFRNPrograma de Pós-Graduação em Engenharia ElétricaAutomação e Sistemas; Engenharia de Computação; Telecomunicações, 2006-11-27)
Wireless sensor networks are reality nowadays. The growing necessity of connectivity between existing industrial plant equipments pushes the research and development
of several technologies. The IEEE 802.15.4 LR-WPAN comes ...
Optimization Methods Based on Decision Diagrams for Constraint Programming, AI Planning, and Mathematical Programming
(2021)
Decision diagrams (DDs) are graphical structures that can be used to solve discrete optimization problems by representing the set of feasible solutions as paths in a graph. This graphical encoding of the feasibility set ...
Guía metodológica para la modernización de equipos de izaje por parte de Konecranes S.A.S.
(Universidad Santo TomásMaestría Dirección y Gestión de ProyectosFacultad de Ingeniería de Telecomunicaciones, 2022-05-05)
This work was carried out in order to address the problem identified at Konecranes S.A.S. regarding the shortcomings in some components associated with the planning and development of lifting equipment modernization projects. ...
Modelo computacional 2.5D de un sistema de alta sustentación
(Universidad de los AndesIngeniería MecánicaFacultad de IngenieríaDepartamento de Ingeniería Mecánica, 2023-06-27)
Uno de los campos de estudio de la mecánica de fluidos computacional conocido en sus siglas en inglés como CFD (Computational Fluid Dynamics) son las configuraciones de alta sustentación en aviones. El cuarto taller propuesto ...
Semidefinite and linear programming integrality gaps for scheduling identical machines
(Springer Verlag, 2018)
Sherali and Adams (SIAM J Discrete Math 3:411–430, 1990) and Lovász and Schrijver (SIAM J Optim 1:166–190, 1991) developed systematic procedures to construct the hierarchies of relaxations known as lift-and-project methods. ...