Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 71 for “"simulation modelling"”.
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Simulation modelling of spatial problems
The thesis presents a simulation modelling strategy for spatial problems which uses a data structure based on spatial relationships. Using this network based approach, two domain specific data-driven models are developed in which the movement of people is modelled as a quasi-continuous process. The …
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Wind farm simulation modelling and control
… been developed which offers sufficiently fast simulation for iterative controller design task, and contains a suitable wind-field model that provides a suitable representation of the wind-field and wake propagation through the wind farm. The wind farm controller design with the objectives of …
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Simulation modelling: Problem understanding in healthcare management
… in the first place. This research looks at how modelling techniques may help healthcare stakeholders to understand their system and increase their level of intercommunication (in the case of multiple stakeholders) with minimum dependency on data. Two main aspects are considered in this research: …
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Adaptive Simulation Modelling Using The Digital Twin Paradigm
… the model and using them for the predictive simulation. So, the accuracy of the predictions is very much dependent upon the input data describing the properties of the materials and/or the environmental conditions the structure experiences. For the structure(s) with non-uniform and complex …
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Agent-based Crowd Simulation Modelling for a Gaming Environment
Crowd simulation study has become a favorite subject in the computer graphics community in the past three decades. It usually is a sub-function within many applications such as video games, films, and public security. This thesis proposes an independent crowd simulation model that is capable of …
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Hybrid Simulation Modelling to Support the Development of Recycling Infrastructures
… sorting and recycling. The model utilises hybrid simulation modelling due to the accuracy and flexibility that the method provides. The model was developed using an agent-based architecture which includes three submodels to describe the process, logistics, and communication. With this …
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A novel approach to upscaling reservoir simulation modelling for polymer processes
… specifically tailored for polymer flooding simulations, integrating both black oil and compositional simulation frameworks. A four-stage upscaling workflow was formulated: (1) single-phase upscaling; (2) relative permeability upscaling; (3) tuning of a sigmoidal polymer viscosity multiplier …
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Applications of Quantitative Methods in Environmental Economics: Econometrics, Simulation Modelling and Experiments
… estimator more commonly used for duration modelling in the medical sciences but find that uncertainty alone cannot explain away common elicitation anomalies. In Part II we employ simulation modelling and experimental techniques to investigate payment for ecosystem services (PES) schemes …
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The development of a hybrid simulation modelling approach based on agents and discrete-event modelling
… out on the research hypothesis –agent-based simulation is better than traditional discrete-event modelling. To test this assertion, a comparison of these two modelling approaches is made by way of a case study. The scenario, a global repair operation of a fleet of civil jet engines, is a real …
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Simulation modelling of QoS enhancements in IEEE, 802. 11 networks and the effects of channel modelling
In this work the impact of the channel effects in modelling EDCA and DCF protocols of the IEEE 802.11 Medium Access Control (MAC) protocol on overall network performance is investigated.
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Growth and simulation modelling studies of rock-lobster (Jasus lalandii) and mussel (Aulacomya ater) populations and their interactions
… constant recruitment requires finetuning. Only simulations of the Cape Peninsula fishing ground produced valid results using the lobster-mussel model with a stock-recruitment relationship. Based on the results of the most reliable models, three main conclusions about rock-lobster harvesting …
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An investigation into the reduction of road safety risk in Cape Town through the use of microscopic simulation modelling : a vehicle-pedestrian and infrastructure interaction assessment
The record of road traffic fatalities in South Africa at around 15,000 per year has continued unabated over the last decade and has led to South African cities consistently featuring at the top of the list of worst known locations for road fatalities around the world. Worryingly, these statistics …
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The Influence of Braking System Component Design Parameters on Pedal Force and Displacement Characteristics. Simulation of a passenger car brake system, focusing on the prediction of brake pedal force and displacement based on the system components and their design characteristics.
… components through experimental study and simulation modelling. The prediction of brake pedal ‘feel’ in brake system simulation has been achieved using the simulation modelling package AMESim. Each individual brake system component was modelled individually before combining them into the …
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SimLean: a reference framework for embedding simulation in lean projects
… to develop a reference framework about embedding simulation in lean projects. By embedding simulation method in lean projects, deficiencies of static lean tools such as their inability to assess the effects of variation, to validate effects of proposed changes before implementation, to identify …
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Enhanced modelling of transport decarbonisation and policy pathways for Ireland
… harm. Many countries are using energy system modelling tools to develop strategies and policy measures to deliver timely and effective reductions of harmful greenhouse gas emissions across all energy-related sectors. Ireland, with ambitious legally binding carbon budgets, and decarbonisation …
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Genetic constraints on the evolution of sexual size dimorphism
… artificial selection experiment and multivariate simulation modelling to study some basic questions concerning the evolution of sexual size dimorphism (SSD). Fecundity selection is often suggested as the main causal factor underlying the prevalence of female-biased SSD, but this assumption has not …
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Impact of human disturbance on coastal birds: population consequences derived from behavioural responses
… study system and taking a joint fieldwork and simulation modelling approach. Fieldwork was centred on Poole Harbour; an estuary and wetland of international importance located on the south coast of the UK. Disturbance experiments and observations showed that bird responses to disturbance are …
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Design of environmental performance measurement systems for agriculture
… and control using a two- phased crop production simulation modelling approach. The simulation results provide significant implications for the cotton industry (and agriculture more broadly) with the potential to save hundreds of gigalitres of water and increase profitability by tens of millions …
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