Browsing School of Engineering by Title
Now showing items 2916-2935 of 2952
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Watermarking digital images for copyright protection
(IEE, 1996)A watermark is an invisible mark placed on an image that is designed to identify both the source of an image as well as its intended recipient. The authors present an overview of watermarking techniques and demonstrate a ... -
Watermarking digital images for copyright protection
(IEE, 1995)A watermark is all invisible mark placed on an image that can only be detected when the image is compared with the original. This mark is designed to identify both the source of a document as well as its intended recipient. ... -
Wavelet‐based individual blade pitch control for vibration control of wind turbine blades
(2019)This paper proposes a novel individual blade pitch control strategy with the objective of reducing blade vibration. A wavelet linear quadratic regulator (LQR) control algorithm, which is an advanced modification of the ... -
A wavelet-based Bayesian framework for 3D object segmentation in microscopy
(2012)In confocal microscopy, target objects are labeled with fluorescent markers in the living specimen, and usually appear with irregular brightness in the observed images. Also, due to the existence of out-of-focus objects ... -
Wavelet-Based Evolutionary Response of Multi-Span Structures Including Wave-Passage and Site-Response Effects
(American Society of Civil Engineers. This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers.”, 2013) -
Wavelet-Bayesian hierarchical stochastic model for short-term traffic flow at noncritical junctions
(2008)In ITS (Intelligent Transportation System) equipped urban transportation systems noncritical junctions are often ignored in short-term traffic condition prediction algorithms as the traffic data collection systems in ... -
Wear of grinding wheels - software for their selection
(2004)An existing model of the grinding process has been upgraded to predict grinding wheel wear as G ratios. It has been successfully benchmarked against experimental results for several combinations of coolant wheel and ... -
Weathering and consolidation trials on sandstones used in Irish Monuments.
(LNEC, Laboratorio Nacional de Engenharia Civil, Lisbon, 2008)The objective of this study was to assess the efficiency of consolidant treatments in improving the durability of Irish sandstones, particularly sandstones used in national monuments at Cashel, Clonfert and Clonmacnoise. ... -
What causes energy and transport poverty in Ireland? Analysing demographic, economic, and social dynamics and policy implications
(2022)Energy and transport poverty have been postulated as conditions linked by overlapping causal factors such as structural economic inequality or housing stock and affecting overlapping demographics such as family size or ... -
What we can't learn from nature
(2011)When attempting to design bio-inspired materials and structures, it is important to remember that Nature employs some strategies for optimising the use of load-bearing materials which we, as engineers, cannot replicate. A ... -
Whispering gallery mode emission from photonic microtubes
(IEEE, 2006)We have found cylindrical glass microtubes can be formed by vacuum assisted filtration using a micro-channel glass matrix followed by thermal treatment of the material. The microtubes are strongly luminescent and exhibit ... -
Whispering-gallery modes in photonic tubes
(Society of Photo-optical Instrumentation Engineers (SPIE), 2007)A new method has been developed to fabricate microtube resonators with strong whispering-gallery-mode emission and quality factors up to 3000. -
Whitespace Networks Relying on Dynamic Control Channels
(2013)The emergence of whitespace networks, and whitespace communications in general, provides an opportunity to, at least partially, meet the ever-growing demand for mobile data communication. Most of the whitespace network ... -
"Who said that?" Applying the Situation Awareness Global Assessment Technique to Social Telepresence
(2023)As with all remotely-controlled robots, successful teleoperation of social and telepresence robots relies greatly on operator situation awareness, however existing situation awareness measurements, most being originally ... -
Whole-Body Magnetic Resonance Imaging Enables Assessing Spatial Accuracy and Precision of Skeletal Joint Locations Inferred from Motion Capture Systems
(2015)Motion capture systems can be used to infer skeletal joints from three-dimensional surface information for various human poses. However, to-date it remains unclear how well the estimated joint coordinates coincide with ... -
Whole-body sodium-mri at 3 T using an asymmetric birdcage resonator and short echo time sequence: first images of a male volunteer
(2012)Sodium magnetic resonance imaging (²³Na MRI) is a non-invasive technique which allows spatial resolution of the tissue sodium concentration (TSC) in the human body. TSC measurements could potentially serve to monitor early ... -
Wide Range Performance Measurement and Low-Fidelity Modelling of Turbocharger Turbines for Optimising Powertrain Efficiency
(Trinity College Dublin. School of Engineering. Discipline of Mechanical & Manuf. Eng, 2024)Turbochargers have been widely used for many years and have made remarkable contributions in reducing the vehicle emissions by reducing the engine size while maintaining the same power output. They are also needed in designs ... -
Wide-band dielectric spectroscopy of small-molecule glass-forming liquids and insulating thin films
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2005)This thesis describes the application of broadband dielectric spectroscopy in the frequency range 1 mHz - 1.8 GHz to two main topics; (i) the glass transition and relaxation features of supercooled liquids and glasses, ...