Browsing Electronic & Electrical Eng by Title
Now showing items 222-241 of 602
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Fabrication of one-dimensional photonic crystals by photoelectrochemical etching of silicon
(2010)The conditions of formation of deep periodic trenches by photoelectrochemical etching of n-Si (100) with linear seeds on the surface are analyzed. Criteria for the proper choice of the period of seed grooves and the etching ... -
Fabrication of ultra-shallow boron junctions using proximity rapid thermal diffusion
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2000)This work presents proximity rapid thermal diffusion (RTD) as a technique for fabricating shallow p-type junctions for LDD devices. Boron-doped spin-on dopant (SOD) is used as a dopant source in proximity RTD. Fourier ... -
Fabrication Technology of Heterojunctions in the Lattice of a 2D Photonic Crystal Based on Macroporous Silicon
(2011)Design and fabrication technology of a microcavity structure based on a double heterojunction in macroporous silicon is suggested. The fabrication process of a strip of a 2D photonic crystal constituted by a finite number ... -
Fairness and Efficiency Tradeoffs for User Cooperation in Distributed Wireless Networks
(2013)We propose a general framework to analyze incentives for user cooperation, and characterize the tradeoff between fairness and efficiency for cooperative networks. More specifically, we define the incentive region as a ... -
Fast high quality interpolation of missing data in image sequences using a controlled pasting scheme
(IEEE, 1999)An important topic in image restoration is interpolation of missing data in image sequences. Missing data is a result of dirt on film and of ageing processes where the film contents are replaced by data that bears little ... -
Fast Image Interpolation for Motion Estimation using Graphics Hardware,
(SPIE, 2004)Motion estimation and compensation is the key to high quality video coding. Block matching motion estimation is used in most video codecs, including MPEG-2, MPEG-4, H.263 and H.26L. Motion estimation is also a key component ... -
Fast probabilistic inference and GPU video processing
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2006) -
Fast removal of line scratches in old movies
(IEEE, 2004)In this paper a fast algorithm for removing line scratches in old movies is presented. It is strongly based on exploiting the defect visibility in the image. To this aim the Weber's law can be applied to coefficients of ... -
Feature-Assisted Sparse to Dense Motion Estimation using Geodesic Distances.
(IEEE, 2009)Large motion displacements in image sequences are still a problem for most motion estimation techniques. Progress in feature matching allows to establish robust correspondences between images for a sparse set of points. ... -
Feature-based object modelling for visual surveillance
(IEEE, 2008) -
Feature-Cut: Video Object Segmentation Through Local Feature Correspondences.
(IEEE Computer Society, 2009)Accurately segmenting objects in video is a difficult and time consuming process in modern post-production houses. Automatic systems may work for a small number of frames, but will typically fail over longer video shots. ... -
Ferrielectric liquid crystal subphase studied by polarized Fourier-transform infrared spectroscopy
(American Physical Society, 2000)IR dichroism and the structure of a homogeneously aligned cell of a chiral smectic antiferroelectric liquid crystal (R)-1-methylheptyl 4-(4?-dodecyloxybiphenyl-4-ylcarbonyloxy)-3-fluorobenzoate [with acronym (R)-12OF1M7] ... -
Field-induced periodic chiral pattern in the Nx phase of achiral bimesogens
(2012)Some hydrocarbon-linked mesogenic dimers are known to exhibit an additional nematic phase (Nx) in the temperature range below the conventional nematic (Nu) phase. One of the features of this phase is the presence of optical ... -
Field-induced phase transitions in an antiferroelectric liquid crystal using the pyroelectric effect.
(American Physical Society, 2000)The antiferroelectric liquid crystal (AFLC) under investigation possesses different helical polar phases. Measurements of pyroelectric response of these phases as a function of temperature and bias field have elucidated ... -
Field-induced transformations in the biaxial order of non-tilted phases in a bent-core smectic liquid crystal
(Institute of Physics, 2010)The structural and electro-optic investigations of an achiral bent-core molecule in SmAPA phase, in which the polar directors in the neighboring layers are arranged anti-ferroelectrically, show that it undergoes transformation ... -
Flexibility in ad hoc networks
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2005)This thesis represents a step forward in our understanding of what flexibility, adaptability and reconfigurability means at the network-layer of mobile, wireless, ad hoc networks. Mobile, wireless, ad hoc networks are ... -
Flexible architecture software radio OFDM transceiver system and frame synchronization analysis
(IEEE, 2003)Abstract-In this paper, we present findings relating to frame synchronization algorithms for software radio based OFDM systems in addition to an overview of the design and implementation of an (OFDM) Software Radio based ... -
Flexo-elastic and electro-optical studies of some novel liquid crystalline systems
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2014)This thesis presents the experimental investigation of the material properties of liquid crystalline systems composed of (i) bent-core molecules, (ii) bimesogens composed of rod-like molecules and (iii) dimesogens composed ... -
Flexoelectric polarization studies in bent-core nematic liquid crystals
(2015)The flexoelectric polarization ( P f ) of four bent-core nematic liquid crystals (LCs) has been measured using the pyroelectric effect. Hybrid aligned nematic cells are fabricated for measuring the pyroelectric response ... -
Form birefringence of oxidized porous silicon
(American Institute of Physics, 2006)A network of preferentially oriented pores is shown to induce anisotropy of linear and nonlinear optical properties of oxidized porous silicon (OPS) films. Although the x-ray diffraction indicates the presence of amorphous ...
