Simulation of models

In line with that research trend, this paper proposes a hybrid algorithm combining particle swarm optimization with the simulated annealing technique (PSO-SA) to optimize the length of intervals to improve forecasting accuracies.

19p vimurdoch 18-09-2023 12 4   Download

In this thesis, a numerical model with detailed reaction mechanism which is tailored for studying the behaviour of combustion of natural gas has been introduced and validated with available experimental data. The numerical model attempts to comprehensively simulate the physical conditions (temperature and pressure), equivalent ratio, and fuel dilution and strain rate effect in the laminar flames.

158p runthenight05 01-03-2023 16 3   Download

In this thesis, the rolling contact wear of 52100 bearing steel and Over-aged Magnesia-Partially-Stabilised Zirconia (OA-Mg-PSZ) ceramic are examined using a newly developed rolling contact wear test rig. The new wear test rig simulates the system geometry of an un-lubricated hybrid (ceramic and steel) ball bearing. The new wear test rig is versatile in that it allows low cost samples to be utilised resulting in a larger number of samples that can be tested.

165p runthenight05 01-03-2023 8 3   Download

This thesis deals with the finite element simulation of spot welded joint in crash analysis. Spot welding is a very common joining process in the automotive industry. It is cost effective and it provides a very fast production rate of automotive body components. Despite this advantage, spot welds are very susceptible to various types of loading conditions. Therefore they are prone to failure, if not designed properly, during their service life time. Therefore it is very important to understand the behaviour of spot welds and their failure characteristics.

243p runthenight05 01-03-2023 9 4   Download

The purpose of the thesis is described as follows: To develop an independent simulation model for IEEE 803.2az Energy Efficient Ethernet Standards with Active and Idle modes of operations; To design and simulate a traffic source generator with exponentially distributed inter-arrival periods, and forecast the duration of the next idle periods, based in the distribution of packet arrivals; To extend the simulation of Dynamic power management in Access networks with the inclusion of prioritized traffic, which changes the duration of low power modes;…

141p runthenight07 01-03-2023 9 3   Download

The objective of this research was to determine the role of neural feedback and muscle mechanics in the generation of physiological tremor oscillation. This research developed a neuromuscular model to simulate the individual and resulting oscillatory mechanisms of tremor. The oscillations found in EMG signal were also analysed empirically from EMG data from 54 subjects using Hilbert Transform and rectification to obtain the envelope of the signal. The time between rhythmical waveform patterns in the EMG signal, TC was found to be 78ms.

117p runthenight07 01-03-2023 6 3   Download

The main focus of this thesis is on the application of a model predictive control (MPC) method to devise an ABS for a BBW vehicle. Unlike the traditional ABS control algorithms which are based on a trial and error method, the MPC based ABS algorithm aims to utilizes the behaviour of the model to optimize the wheel slip dynamics subject to system constraints. Performance of the proposed wheel slip controller is validated through Software-in-the-Loop (SiL) and Hardware-inthe-Loop (HiL) simulation.

136p runthenight07 01-03-2023 9 3   Download

The primary goal of this research is accomplishing the BUUAS that can realize functions in the mission profile. In order to achieve this, the project starts with developing elemental aspects of the BUUAS. The configuration and propulsion system are two basic elements that the BUUAS must have to realize successfully operation. Besides, the necessary transition process between water and air must be investigated and carried by a conceived system.

187p runthenight04 02-02-2023 5 2   Download

In this Masters thesis computational modelling techniques were employed to investigate iron-free apo-Lactoferrin (apo-Lf) structural conformation changes in the presence of variant temperature and pH. These conditions represent the environment most milk protein goes through in food processing and the production of food products.

162p runthenight04 02-02-2023 8 3   Download

This research investigates integrated drive topologies for Switched Reluctance Motors (SRMs). During the research project, three new power electronic topologies are proposed and simulated via extensive simulations in finite element modelling software (Maxwell) and MATLAB/Simulink.

120p runthenight04 02-02-2023 9 3   Download

This research demonstrates how housing demand can be modelled by using a System Dynamics approach. This modelling concept has been set up, using the root causes which generate housing demand. Causal factors which influence housing demand are collated, and mapped. A model simulating housing demand was developed. Keys to this are demographic, social and economic factors. This model is presented with a view to pursuing new approaches for housing demand modelling.

344p runthenight04 02-02-2023 8 4   Download

Modelling the diffusion of mobile commerce in a country is a difficult task due to the non-linear, complex and uncertain nature of its operating environment. Conventional analytical techniques are of limited use in this context, and a System Dynamics approach is more appropriate to model such a complex system.

295p runthenight04 02-02-2023 8 3   Download

The thesis is structured as follows: In Chapter 1, the scientific literature is summarized within the scope of this study. Chapter 2 provides a comprehensive overview of the principles of the applied computational approaches in this study. Chapter 3 identifies the important residues of the LsIA/α7 nAChR complex that affect the interactions between the toxin and the membrane protein due to C-terminal carboxylation of LsIA. The effects of C-terminal modification of LsIA on interactions with α3β2 nAChR, involved in cardiovascular diseases, were also investigated in Chapter 4.

234p runthenight04 02-02-2023 11 3   Download

The current research is undertaken by performing Computational Fluid Dynamics (CFD) simulations for a 2D aerofoil fitted with a shock control bump at a transonic flow condition. Reynolds-Averaged Navier-Stokes equation coupled with turbulence models is adopted to solve the flowfield. The bump has a conventional geometric feature which consists of a ramp, a crest and a tail, and it has eight variants for which the designed parameters are reasonably specified according to the compressible aerodynamics theory.

84p runthenight04 02-02-2023 7 3   Download

The simulation results demonstrate the possibilistic particle forward-backward smoothing performs well and improves bearings-only tracking performance. Furthermore, possiblistic smoothing also demonstrates better performance than probabilistic smoothing in model-mismatched case.

78p gaocaolon12 13-06-2021 18 4   Download

The main theme of the dissertation: The dissertation targets the basic research on the physical models and new structures; calculating and simulating the bistable devices using 1D, 2D PhC structures. The effects of the PhC configuration and structural parameters on the optical characteristics and working performance of bistable devices will be investigated.

28p extraenglish 24-05-2021 22 4   Download

Objectives: Research on the scientific basis to a construct numerical model to simulate the flow and sediment transport on watershed. Application of the built numerical model in some small and medium watersheds.

28p dolphintaletale 23-04-2021 37 6   Download

Although the research direction on NSFD schemes for differential equations have achieved a lot ofresults shown by both quantity and quality of existing research works, real-world situations have always posednew complex problems in both qualitative study and numerical simulation aspects. On the other hand, there aremany differential models that have been established completely in the qualitative aspect but their correspondingdynamically consistent discrete models have not yet been proposed and studied

26p capheviahe29 17-03-2021 26 4   Download

The thesis focuses on studying MA operating in the frequency region of 2-18 GHz in 2 main approaches: Asymmetric and isotropic MA with multi-peak; broadening the absorption range by integrating conductive polymer; the content of the thesis is based on a consistent combination of theoretical models and simulation software.

16p capheviahe27 23-02-2021 8 3   Download

The dissertation targets the basic research on the physical models and new structures; calculating and simulating the bistable devices using 1D, 2D PhC structures. The effects of the PhC configuration and structural parameters on the optical characteristics and working performance of bistable devices will be investigated.

28p capheviahe27 23-02-2021 13 3   Download