Browsing School of Engineering by Title
Now showing items 2008-2027 of 2975
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Optical spectra of two-dimensional photonic crystal bars based on macroporous Si
(2011)Two-dimensional (2D) photonic crystal (PC) bars with 6 and 21 periods were fabricated by simultaneous photoelectrochemical etching of macropores and trenches in a pre-patterned silicon wafer. The structures had square ... -
Optical Study of Platinum-Modified Amorphous Carbon
(Fizika i Tekhnika Poluprovodnikov, 2009)Films of amorphous carbon a-C and a platinum-modified amorphous carbon composite a-C-Pt, produced by magnetron sputtering in a wide range of thicknesses and modifying platinum concentrations in the optimal mode for the ... -
Optimal Control Algorithms for Wave Energy Conversion
(Trinity College Dublin. School of Engineering. Disc of Civil Structural & Environmental Eng, 2022)The aim of this thesis is to design control strategies with the objective of power maximization for point absorber (PA) type of wave energy converter (WEC) devices, considering non-linearities and physical limitations ... -
Optimal exploitation of sparsely localised traffic data for modelling traffic flow in road networks
(2023)Traffic flow data are generally collected using induction loops. Therefore, to capture traffic dynamics along road sections, a very fine mesh of induction loops is required. However, due to their higher cost of installation ... -
Optimal mechanical performance prediction of a sediment-based geopolymer road sub-layer
(2023)One of the major obstacles for the implementation of dredged sediment in the manufacture of concrete is its variable mineralogical properties. However, its use in the manufacture of geopolymer binder as proven to be an ... -
Optimal Real-Time Predictive Control for Maximising the Power-Take-Off Efficiency of the WaveRAM Wave Energy Converter
(Trinity College Dublin. School of Engineering. Disc of Civil Structural & Environmental Eng, 2018)The aim of this thesis is to develop a control strategy for optimising the power-take-off (PTO) efficiency of the newly developed WaveRAM (WRAM) wave energy converter. The three main research streams established to satisfy ... -
Optimal risk-based design of a RC frame under column loss scenario
(2023)Structural systems may be subject to abnormal loads with small probability of occurrence but great intensity, which may lead to local damage, and even loss of loadbearing elements. In this context, it is important to design ... -
Optimal Schemes for Motion Estimation on Colour Image Sequences
(IEEE Computer Society Press, 1997)This paper describes a method for incorporating the chrominance information when estimating the motion in a colour image sequence. It is based on a maximum likelihood formulation of the motion estimation problem which ... -
Optimal transport pricing for Dublin
(PTRC, 1995) -
Optimisation and 3D Printing of Paediatric Stents
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2023)Aortic coarctation is a congenital heart defect that occurs 3 per 10,000 live births with a life expectancy of 35 years if left untreated. Stenting is a common treatment method, but devices are not specifically designed ... -
Optimisation of inspection planning for structures
(Trinity College (Dublin, Ireland). Department of Civil, Structural and Environmental Engineering, 2009)The main aim of this thesis was the development of a maintenance management methodology which incorporates two aspects of a structural inspection, i.e. (i) detection of a defect and (ii) sizing of a defect. Markov transition ... -
Optimisation of monopiles supporting offshore wind turbines through advanced numerical modelling of cyclic loading
(Trinity College Dublin. School of Engineering. Disc of Civil Structural & Environmental Eng, 2024)The European Union (EU) has established ambitious renewable energy targets in order to de-carbonise the energy sector. In Ireland, it is estimated that 2.3GW of offshore wind capacity will be installed by 2030 at an estimated ... -
Optimisation of process parameters and tooling during friction stir welding of AA2024-T3
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2011)Friction stir welding (FSW) was invented and experimentally proven at The Welding Institute (TWI) in 1991. The process involves the joining of two metal pieces without melting by joining their molecules together. The tool ... -
Optimisation of the Low-Frequency Response of a Multi-Stage Bioelectric Amplifier for Electrocardiogram Recording
(Matec Web of Conferences, 2016) -
Optimised real-time rendering of auditory events in immersive virtual environments
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2014)This project looks at the problem of the capture or synthesis of acoustic events in reverberant spaces and their subsequent plausible reproduction in a virtual version of the original space, otherwise known as a Virtual ... -
Optimising shared electric mobility hubs: Insights from performance analysis and factors influencing riding demand
(2023)In order to decarbonise the transport networks, systemic change is needed. One manifestation of this transformation is shared electric mobility, seeking to curtail car usage and ownership. This current case study aims to ... -
Optimization and Photostability Studies of Luminescent Organic Dyes for Solar Devices
(2018)The overall efficiency of a solar cell is limited due to high energy photons within the UV region not being used efficiently. Luminescent Down-Shifting (LDS) layers are used to convert the high energy photons to a lower ... -
Optimizing Crack Repair Policies using Value of Information Analysis considering Imperfect Inspection of Pipelines
(2023)This study presents an approach for optimizing policies on crack repair, which may take place after pipeline inspection, depending on the possible failure risk (i.e., the severity of crack) and the repair cost. The approach ... -
Optimizing the Bridge Maintenance Schedule of Transportation Networks under Uncertainty: A Simheuristic Approach Considering Reliability
(2023)In this work, we consider optimal maintenance scheduling policies of bridges in transportation networks. The network is composed of a set of urban centers, connecting roads, and corresponding bridges. Bridges, as one of ... -
Optimizing the use of on-street car parking system as a passive control of air pollution exposure in street canyons by large eddy simulation
(2011)An investigation was carried out to establish the effectiveness of parked cars in urban street canyons as passive controls on pedestrian pollutant exposure. A numerical model of a generic street canyon was developed using ...