Browsing Electronic & Electrical Eng by Title
Now showing items 550-569 of 694
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Reversal time of the magnetization of single-domain ferromagnetic particles with mixed uniaxial and cubic anisotropy
(American Physical Society, 2009)The reversal time of the magnetization of single-domain ferromagnetic particles is estimated for mixed uniaxial and cubic anisotropy energies possessing nonparaboloidal saddles and well bottoms or either. The calculation ... -
Robust biometric person identification using automatic classifier fusion of speech, mouth, and face experts
(IEEE, 2007)Information about person identity is multimodal. Yet, most person-recognition systems limit themselves to only a single modality, such as facial appearance. With a view to exploiting the complementary nature of different ... -
Robust Global Motion Estimation From Mpeg Streamswith a Gradient Based Refinement
(IEEE, 2006)In this paper a new robust algorithm for global motion estimation from an MPEG stream is proposed. The approach is to use a hybrid of two previous global motion estimation algorithms in order to improve the accuracy and ... -
Robustness and prediction accuracy of machine learning for objective visual quality assessment
(2014)Machine Learning (ML) is a powerful tool to support the development of objective visual quality assessment metrics, serving as a substitute model for the perceptual mechanisms acting in visual quality appreciation. ... -
Rotation detection using the Curl equation
(IEEE, 2007) -
Rotational bias of an antiferroelectric liquid crystal studied by polarized Fourier transform infrared spectroscopy
(1999)Experimental studies of the absorbance vs polarization angle of the incident ir beam on a cell have been carried out for several absorbance bands in the SmA phase and in electrically induced ferroelectric states F(1) and ... -
Rotational Brownian motion and dielectric relaxation of polar molecules subjected to a constant bias field: Exact solution
(American Physical Society, 1994)The longitudinal and transverse components of the complex dielectric susceptibility tensor and dielectric correlation times are calculated exactly for a system of noninteracting polar molecules placed in a constant external ... -
Ruserford Back-scattering and Micro-Raman spectroscopy of composite a-C:Pt films grown by magnetron co-sputtering of graphite and Pt targets by photoelectrochemical etching of silicon
(2010)Raman spectra have been measured in the spectral range from 1000 to 1800 cm?1 on samples of amorphous carbon modified with platinum in amounts comparable with that of carbon. Also, Rutherford backscattering spectra have ... -
A sampling based approach to line scratch removal from motion picture frames
(IEEE, 1996)We address the problem of detecting, and subsequently removing, `line scratch' distortion in motion picture frames. A model for the lines' interaction with the image data is constructed. A sampling based algorithm based ... -
SDR for opportunistic use of UMTS licensed bands
(2006)The UMTS radio frequency spectrum is a highly expensive commodity. While the UMTS standards make very efficient use of the allocated bands there is however opportunity for further advancements. This paper focuses on ... -
Segmentation and inpainting for stereoscopic videos
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2015) -
Segmentation of textured images on three-dimensional lattices
(Trinity College (Dublin, Ireland). Department of Electronic & Electrical Engineering, 2003)The development of supervised segmentation algorithms for textured images existing on three-dimensional (3-D) lattices is the central theme of this thesis. The current state of the art in 3-D segmentation has been reviewed, ... -
Selecting appropriate hardware For software radio systems
(2002)Software radio is an emerging technology that offers great opportunities for the development of future wireless systems. Many different views exist on how to build both the software and hardware required by a software ... -
Self-assembled uniaxial and biaxial multilayer structures in chiral smectic liquid crystals frustrated between ferro- and antiferroelectricity
(2004)With a view to obtain a molecular model for the subphases produced by the frustration between ferro- and antiferroelectricity in chiral smectic liquid crystals, we report results on two compounds and observe (i) the staircase ... -
Self-assembly of biaxial ordering and molecular tilt angle of chiral smectic liquid crystals in hometropically aligned cells investigated using Fourier transform infrared spectroscopy
(American Physics Society, 2005)Temperature dependences of the infrared absorbance have been measured for the four chiral liquid crystal samples in the homeotropic cell configuration. It is shown that the values of the orientational order parameter S ... -
Semiclassical master equation in Wigner's phase space applied to the Brownian motion in a periodic potential
(2007)The quantum Brownian motion of a particle in a cosine periodic potential V x =?V0 cos x/x0 is treated using the master equation for the time evolution of the Wigner distribution function W x, p, t in phase space x, p ... -
Semiclassical treatment of a Brownian ratchet using the quantum Smoluchowski equation
(2009)Quantum effects in the noninertial Brownian motion of a particle in a one-dimensional ratchet potential are treated in the high temperature and weak bath-particle coupling limit by solving a quantum Smoluchowski equation ... -
The sense ensemble; An approach to music composition for deaf and hearing alike
(Trinity College Dublin. School of Engineering. Discipline of Electronic & Elect. Engineering, 2018)Effective music composition approaches for the deaf are investigated. After a review of existing methods for deaf musical engagement, the reasons for music being popularly regarded as an auditory-centred experience are ... -
Sequence of Four Orthogonal Smectic Phases in an Achiral Bent-Core Liquid Crystal: Evidence for the SmAP(alpha) Phase
(2011)The mesomorphic properties of an achiral bent-core liquid crystal derived from 4-cyanoresorcinol are studied by polarizing optical microscopy, x-ray diffraction, and second harmonic electro-optic response. It shows a novel ...
