نتایج جستجو برای: optimisation

تعداد نتایج: 20717  

Journal: :IJCSE 2014
Debora Clever Jens Lang Dirk Schröder

We present a model hierarchy multilevel optimisation approach to solve an optimal boundary control problem in glass manufacturing. The process is modelled by radiative heat transfer and formulated as an optimal control problem restricted by partial differential algebraic equations (PDAE) and additional control constraints. We consider a sequence of model approximations given by spacetime depend...

2011
M. J. Alexander J. T. Allison P. Y. Papalambros

Effective powertrain design for the emerging electric vehicle market is a complex, multidisciplinary problem. As such, engineers may often use formal decomposition-based optimisation strategies to partition the problem into more manageable subproblems and then integrate their solutions to obtain an optimal system design. Sometimes, these strategies yield decision variables that consist of highl...

Journal: :Comput. J. 2014
Jesús Cerquides Alessandro Farinelli Pedro Meseguer Sarvapali D. Ramchurn

Research on optimisation in multi-agent systems has contributed with a wealth of techniques to solve many of the challenges arising in a wide range of multiagent application domains. Multi-agent optimisation focuses on casting multiagent system problems into optimisation problems whose solving could possibly involve the active participation of the agents in a multi-agent system. Research on mul...

2015
Kornel Warwas Krzysztof Augustynek

The paper presents an application of neural networks to control braking torques on wheels of an articulated vehicle in an untripped rollover manoeuvre. The numerical model of the articulated vehicle and dynamic optimisation were used to calculate appropriate braking torques for each wheel in order to restore stability. The optimisation problem requires the equations of motion to be integrated a...

پایان نامه :وزارت بهداشت، درمان و آموزش پزشکی - دانشگاه علوم پزشکی و خدمات بهداشتی درمانی استان فارس - دانشکده دندانپزشکی 1382

چکیده ندارد.

2007
Rawan Ghnemat Cyrille Bertelle Gérard H.E. Duchamp Philippe Lebon

The development of distributed computations and complex systems modelling [11] leads to the creation of innovative algorithms based on interacting virtual entities, specifically for optimisation purposes within complex phenomena. Particule Swarm Optimisation (PSO) and Ant Colony Optimisation (ACO) are two of these algorithms. We propose in this paper a method called Community Swarm Optimisation...

Journal: :IET Communications 2011
Anis Naanaa Safya Belghith

In this study, the authors propose a method to minimise the multi-user interference (MUI) caused by multiple access (MA) in a time hopping ultra-wide-band (TH-UWB) system with line-of-sight (LOS) multi-path channel in a residential environment IEEE 802.15.4a channel model. The authors considered both synchronous and asynchronous cases. The problem is formulated as a combinatorial optimisation p...

2006
Irene Moser Tim Hendtlass

Solving dynamic combinatorial problems poses a particular challenge to optimisation algorithms. Optimising a problem that does not notify the solver when a change has been made is very difficult for most well-known algorithms. Extremal Optimisation is a recent addition to the group of biologically inspired optimisation algorithms. Due to its extremely simple functionality, it is likely that the...

2011
Andrew Lewis Sanaz Mostaghim

Problems for which many objective functions are to be simultaneously optimised are widely encountered in science and industry. These multiobjective problems have also been the subject of intensive investigation and development recently for metaheuristic search algorithms such as ant colony optimisation, particle swarm optimisation and extremal optimisation. In this chapter, a unifying framework...

Journal: :Int. J. Systems Science 2009
Masri Ayob Graham Kendall

This article surveys research on the single surface mount device (SMD) placement machine optimisation problem. We classify the optimisation problem into five sub-problems: feeder setup, component placement sequencing, nozzle optimisation, component retrieval plan and motion control; and analyse issues relevant to each of these. One of the aims of this article is to provide guidance to other res...

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