Results 41 to 50 of about 3,884,812 (138)

Design of a Logistics Nonlinear System for a Complex, Multiechelon, Supply Chain Network with Uncertain Demands

open access: yesComplexity, 2018
Industrial systems, such as logistics and supply chain networks, are complex systems because they comprise a big number of interconnected actors and significant nonlinear and stochastic features.
Aaron Guerrero Campanur   +4 more
doaj   +1 more source

Cutting plane methods for general integer programming [PDF]

open access: yes, 1993
Integer programming (IP) problems are difficult to solve due to the integer restrictions imposed on them. A technique for solving these problems is the cutting plane method.
Mitra, G, Hamid, FA, Darby-Dowman, K
core   +4 more sources

A Survey on Mixed-Integer Programming Techniques in Bilevel Optimization

open access: yesEURO Journal on Computational Optimization, 2021
Bilevel optimization is a field of mathematical programming in which some variables are constrained to be the solution of another optimization problem. As a consequence, bilevel optimization is able to model hierarchical decision processes.
Thomas Kleinert   +3 more
doaj   +1 more source

Restoration model for unbalanced distribution networks considering renewable sources uncertainties

open access: yesEnergy Reports, 2023
Extreme events cause blackouts, resulting in the distribution network being unable to obtain power from the upstream transmission system. In this situation, local distributed resources can be fully utilized to improve system resilience.
Tao Zhang   +6 more
doaj   +1 more source

Joint Allocation on Communication and Computing Resources for Fog Radio Access Networks

open access: yesIEEE Access, 2020
To improve the user experience, an increasing number of mobile applications offload their computing tasks to servers with powerful computing capabilities. The fog radio access network (F-RAN) incorporates the concept of “fog computing” into
Yingteng Ma   +4 more
doaj   +1 more source

Operational Optimization of Steam Turbine Systems for Time Series in Hourly Resolution: A Systematic Comparison of Linear, Quadratic and Nonlinear Approaches

open access: yesEnergies
Computer-aided modeling and mathematical optimization of energy systems are essential for improving operational efficiency and achieving emission reductions, particularly for steam turbine systems with part-load-dependent efficiency characteristics ...
Louisa Zaubitzer   +2 more
doaj   +1 more source

Time-Optimal Attitude Scheduling of a Spacecraft Equipped with Reaction Wheels

open access: yesInternational Journal of Aerospace Engineering, 2018
The time-optimal control problem of a spacecraft equipped with reaction wheels has been studied, in which the spacecraft is constrained to sequentially assume a set of attitudes, whose order is not specified.
Alberto Olivares, Ernesto Staffetti
doaj   +1 more source

Plantwide optimization of monoclonal antibody manufacturing platforms via mixed integer nonlinear programming [PDF]

open access: yesRoyal Society Open Science
Design variables of upstream and downstream process units play a significant role in the performance of monoclonal antibody (mAb) production platforms.
Wil Jones, Dimitrios I. Gerogiorgis
doaj   +1 more source

A generic multi‐period optimal power flow framework for combating operational constraints via residential flexibility resources

open access: yesIET Generation, Transmission & Distribution, 2021
In low voltage networks, the majority of distributed energy resources are customer owned. As such, it is harder for the distribution system operator to control its system and maintain acceptable operating conditions.
Iason I. Avramidis   +2 more
doaj   +1 more source

Global optimality conditions for mixed integer nonlinear programming problems

open access: yes四川大学学报. 自然科学版, 2017
In recent years, the application of mixed integer nonlinear programming problem has been extremely active and very extensive. In this paper, some necessary conditions for a given global minimizer applied to mixed integer nonlinear programming problem ...
QUAN Jing, LI Guo-Quan
doaj  

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