Browsing Civil Structural & Environ Eng by Title
Now showing items 888-907 of 1358
-
Online Aleatory Uncertainty Quantification for Probabilistic Time Series Models
(2023)Engineering problems rely on probabilistic models for decision making tasks. One such approach are the state-space models used for time series forecasting which involve unknown parameters for not only modelling physical ... -
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 transport pricing for Dublin
(PTRC, 1995) -
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 ... -
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 ... -
Origin and technology of the Georgian brick at Fade Mansion, Dublin, built c. 1728
(2021)This paper studies the provenance and firing technol- ogy of the Fade Mansion brick. The microstructure was studied with scanning electron microscopy (SEM), mineral associations and transformation were ... -
Origin of films on monumental stone
(Earthscan, 2006)This paper investigates the origin of superficial films on different rock types from rural and urban locations in Spain and Ireland, focusing mainly on oxalate films. There is little agreement on the origin of oxalate films ... -
Output-only Finite Element Model Updating for Post-Earthquake Monitoring
(2023)After any seismic event, it is critical to rapidly assess the damage condition of bridges. This process could be facilitated using digital technologies to eliminate the barriers of manual inspections. The post-event response ... -
An overview of the University College Dublin hollow cylinder apparatus
(2001)Most sedimentary soils are inherently ansiotropic. Their response to loading will depend on the directions of the principal stresses. In most geotechnical problems the principal stresses gradually rotate during loading. ... -
An Overview of the University College Dublin Hollow Cylinder Apparatus
(2001)This presentation is divided into two sections. First, an example showing the influence of the principal stresses on the strength and deformation characteristics of a soil is discussed. Secondly, an overview of a unique ...