Browsing Electronic & Electrical Eng by Title
Now showing items 1-20 of 546
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3-dimensional solder paste inspection using Structured Light techniques
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2002)Re-modelling of three-dimensional solder paste constructed from optical profilometry has gathered ever-increasing attention in different inspection and process control sectors of the electronics Printed Circuit Board ... -
A quasi three dimensional numerical model for terrain propagation
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2002)Numerical modeling techniques provide a powerful tool for the optimization of modern land mobile radio communications systems. Mathematically, propagation over terrain constitutes a three-dimensional vector field problem ... -
Active speaker localisation and tracking using audio and video
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2010) -
Ad hoc key management
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2006)This dissertation analyses the problem of providing Key Management Infrastructure (KMI) in an ad hoc network. A novel solution is proposed designed and implemented that facilitates both types of KMI that are deployed in ... -
Ad hoc Networking, Markov Random Fields, and Decision Making
(2006)Our central proposition is that by articulating decision making in an ad hoc network using a Markov random field (MRF) maximum a posteriori (MAP) approach, a viable decision- making framework can be designed. This ... -
Adaptation in a Channel Access Game with Private Monitoring
(2013)Under the opportunistic spectrum access paradigm, the shared pool of spectrum bands that the multiple autonomous cognitive radios (CRs) need to compete for is not necessarily homogeneous. The non-homogeneity in channels ... -
Adaptation of Reputation Management Systems to Dynamic Network Conditions in Ad Hoc Networks
(2010)Reputation management systems have been proposed as a cooperation enforcement solution in ad hoc networks. Typically, the functions of reputation management (evaluation, detection, and reaction) are carried out homogeneously ... -
Adaptive noncontact gesture-based system for augmentative communication
(IEEE, 1999)An adaptive noncontact gesture-based system for augmentative communication is described. The system detects movement of any anatomical site through the analysis of reflected speckle. This movement is converted into ... -
Advanced video debanding
(ACM, 2014)High efficiency video coding has made it possible to stream video over bandwidth constrained communication networks. Depending on bit rate requirements, a video encoder sacrifices some image de- tails which can then ... -
Algorithmic level low-power VLSI design applied to RGB to HSI conversion
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2001)The growing demand for portable applications such as cellular phones, portable digital assistants (PDAs) and notebooks has resulted in a requirement for integrated circuits (ICs) which consume less power while delivering ... -
Alignment instability caused by anchoring of the in-plane directors to the rubbing direction in the V-shaped switching
(2000)In order to investigate the molecular alignment in the smectic liquid crystals showing the V-shaped switching behavior, two types of the liquid crystal cells, a sandwiched cell and an open cell, were prepared. ... -
Alignment of liquid crystal E7 in composite photonic crystals based on single crystal silicon
(SPIE, 2005)The orientation of nematic liquid crystal (LC) E7 on the surface of (111) silicon wafers and in the channels of grooved silicon structure has been investigated. Grooved Si is a periodical structure obtained by wet anisotropic ... -
An indoor resource optimisation for TDMA incorporating a convex space building configuration and accurate ray-tracing
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2004)The contents of this work are designed for planning wireless telecommunication systems in indoor environments with application intended for time division multiple access (TDMA) systems. The term resource optimisation ... -
An Analysis of Competition among Autonomous Devices in Multichannel Cognitive Radio Networks
(2012)We investigate an autonomous opportunistic spec- trum access (OSA) strategy for a multichannel cognitive radio (CR) network, where two or more autonomous CRs sense the channels sequentially in some sensing order to find ... -
Analysis of Strain and Intermixing in a Single Layer Ge/Si dots using polarized Raman Spectroscopy
(2006)The built-in strain and composition of as-grown and Si-capped single layers of Ge?Si dots grown at various temperatures (460?800 ?C) are studied by a comparative analysis of the Ge-Ge and Si-Ge modes in the polarized Raman ... -
Anisotropic rotational diffusion and transient nonlinear responses of rigid polar macromolecules in a strong external electric field
(American Institute of Physics, 2007)Nonlinear transient responses of polar polarizable particles (macromolecules) diluted in a nonpolar solvent to a sudden change in magnitude of a strong external dc field are evaluated using the anisotropic noninertial ... -
Anomalous dependence of response time on the electric field in an electroclinic liquid crystal with large induced tilt and polarization
(2009)We investigate the response time of an electroclinic liquid crystal with large induced tilt and polarization (de Vries smectic A*). The response time is found to increase with the increase in electric field up to a threshold ... -
Anomalous dielectric relaxation in an N-fold cosine potential
(American Physical Society, 2003)The fractional Klein-Kramers (Fokker-Planck) equation describing the fractal time dynamics of an assembly of fixed axis dipoles rotating in an N-fold cosine potential representing the internal field due to neighboring ... -
Anomalous nonlinear dielectric and Kerr effect relaxation steady state responses in superimposed ac and dc electric fields
(American Institute of Physics, 2007)It is shown how the rotational diffusion model of polar molecules (which may be described in microscopic fashion as the diffusion limit of a discrete time random walk on the surface of the unit sphere) may be extended to ...
