Computer simulation
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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 8 4 Download
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This purpose of this work was to investigate the patient radiation doses and image quality of a Philips/Agfa computed radiographic (CR) system and a Philips indirect-capture digital radiographic (DR) system in a paediatric setting. A CDRAD digital radiographic contrast-detail phantom was used to assess radiographic image quality. Perspex slabs of three different thicknesses (6, 11 and 16 cm) were used to simulate paediatric patients of three arbitrary ages.
159p runthenight05 01-03-2023 8 3 Download
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Optimum Flight Trajectories for Terrain Collision AvoidanceThe objective of this research is to introduce a new methodology that computes optimal escape trajectories within a three dimensional digital terrain. It has been established that conducting a pull up manoeuvre may not always be the best option for a pilot to salvage the aircraft in the case of an imminent collision. To prove this further, several simulations were conducted which shows that performing a lateral turn can produce safer trajectories in comparison to a vertical pull up.
155p runthenight07 01-03-2023 6 2 Download
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The main objective of this research is to optimize the design of the Tunnel kiln for efficient fuel usage. To achieve that, the temperature distribution from the simulation needs be matched with the desired Tunnel kiln curve found in industry. This objective can be achieved by CFD simulation where temperature, velocity and emission distributions inside the Tunnel kiln can be obtained. Generated temperature distribution can be matched with the industrial curve and by interpreting the curve, efficient design can be suggested.
115p runthenight07 01-03-2023 8 2 Download
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This thesis proposes and implements a new and novel solution on simulators and real devices to solve the mobility problem in a VPN. The new solution adds mobility support to existing L2TP/IPsec (Layer 2 Tunneling Protocol/IP Security) tunnels. The new solution tunnels Layer 2 packets between VPN clients and a VPN server without using Mobile IP, without incurring tunnel-re-establishment at handoff, without losing packets during handoff, achieves better security than current mobility solutions for VPN, and supports fast handoff in IPv4 networks.
123p runthenight07 01-03-2023 3 2 Download
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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 6 2 Download
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The thesis is organised as follows: Chapter 1 comprises the literature review of protein structure, amyloid fibrils and of the effect of nanomaterials on protein aggregation. Chapter 2 reviews the computational methods used to perform simulations and analysis. Chapter 3 comprises my published article on benchmarking forcefields and sampling methods for disordered proteins using amylin as a case study. Chapter 4 comprises my published article on the effect of oxidation on the properties of graphene oxide flakes in solution.
56p runthenight04 02-02-2023 11 3 Download
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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
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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 6 3 Download
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: Fluid vents in the Sea of Marmara were discovered and investigated by several studies. In this paper, a numerical model is created for the first time to determine the possible transport mechanism behind those fluid emissions at the seafloor. The finite volume method is used for numerical simulations by implementing a commercial finite volume code, ANSYS-Fluent. The thermal and physical rock properties used in our models are taken from previous studies.
11p tanmocphong 29-01-2022 7 1 Download
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Research and improve scheduling admission control mechanism to enhance QoS based on incoming burst rate prediction at core node to improve scheduling efficiency for low QoS bursts but still ensure a level of service quality for high QoS bursts. The effectiveness of the scheduling admission control mechanism was valued through simulation and mathematical analysis.
26p gaocaolon12 18-06-2021 23 3 Download
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Software-defined networking (SDN) represents a new structure of computer network that simplifies and improves network management by splitting the control plane and data plane. Since SDN is regarded as a new research issue, the application of SDN in practice faces some barriers. Most network devices such as routers and switches that implement SDN functionalities are expensive. An alternative solution in SDN research and experiments is to use network emulators. By using Mininet, an open source network emulator, this study simulates SDN implementations in different environments.
13p nguaconbaynhay10 19-02-2021 25 1 Download
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The structural calculations such as band structure, density of states and optical properties were carried out under the framework of the Density Functional Theory (DFT). A theoretical analysis by computer simulation is expected to clarify the doping effects in detail and compare well with experimental results.
7p tamynhan9 02-12-2020 12 1 Download
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Using the non-force method we simulate diffusion on a disordered chain consisting of 2000 sites for a wide range of temperature. Three types of disordered chains, site, saddle and site-saddle system are considered. The influence of site and saddle disorders and Arrhenius behavior is also investigated and discussed in this work.
9p tamynhan8 04-11-2020 4 2 Download
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This study investigates the adsorption mechanism of 2-butanone (ethyl methyl ketone) on the surface of graphene by using Density Functionals Theory (DFT). A 2-butanone molecule was chosen as a selected example of main volatile organic compounds (VOCs) in exhaled breath.
9p tamynhan6 14-09-2020 12 1 Download
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In this work, we investigated the adsorption mechanism of acetone and toluene on the surface of silicene by the quantum simulation method. The images of the potential energy surfaces for different positions of the adsorbate on the silicene surface were explored by Computational DFTbased Nanoscope tool for determination of the most stable configurations and diffusion possibilities.
8p tamynhan6 14-09-2020 21 2 Download
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The first part of the study was intended to select the best turbine ventilator design to test its performance while in the second part, simulation study was conducted on the selected design in comparison with the benchmarks (currently market-available turbine ventilators).
11p lucastanguyen 01-06-2020 19 2 Download
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The current work attempts to provide an idea of the drop ejection behaviour based on the computation of energies required for droplet formation and splat formation.
13p lucastanguyen 01-06-2020 27 2 Download
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The limitation of land in urban area leads to the existence of land slowly omitted and changed to be functioned room. The additional room itself will be reducing thermal comfort in the house.
13p lucastanguyen 01-06-2020 10 2 Download
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In this study, behaviors of gas inside the extraction chromatography column were investigated through experiments and Computation Fluid Dynamics (CFD) simulation. N2 gas once accumulated as bubbles in the packed bed was hardly discharged by the flow of mobile phase.
8p christabelhuynh 31-05-2020 8 0 Download