Browsing Electronic & Electrical Eng (Scholarly Publications) by Title
Now showing items 458-477 of 571
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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 ... -
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 ... -
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 ... -
Short-range correlations seen in the nematic phase of bent-core liquid crystals by dielectric and electro-optic studies
(2011)Three bent-core nematic liquid crystals having the same core but with different terminal groups, short (C4) and long (C7,C9) tails, are investigated by dielectric and electro-optic contrast spectroscopic techniques. C4 ... -
Sign reversal in the dielectric anisotropy as functions of temperature and frequency in the nematic phase of a bent-core mesogen
(2010)The sign reversal in the dielectricanisotropy(???????) from positive to negative is observed for 4-cyanoresorcinol bisbenzoate system with temperature and frequency in the nematic phase of a bent-core system as the temperature ... -
Signal to Noise Loops i++: Noise Water Air
(2018)Signal to Noise Loops i++ is a live performance for the PerformIOT system. This system involves the application of techniques and concepts from the field of data-driven music to achieve a balanced co-ordination between ... -
Silicon photonic crystal filter with ultrawide passband characteristics
(2011)We report on what is believed to be the first example of an ultrawide, bandpass filter, based on a high-contrast multicomponent one-dimensional Si photonic crystal (PC). The effect of the disappearance of a limited number ... -
Skin aware stylization of video portraits
(IEEE, 2009)This paper presents a new non-photorealistic/stroke-based rendering (NPR/SBR) framework for the stylization of videos featuring head shots of people, such as home videos, movies, and camera mobile phone clips. Spatiotemporal ... -
Small Dual-Band 3D Beamforming MIMO Antenna
(IEEE, 2023)This work proposes a small dual-band (2.4 GHz and 4.89 GHz bands) 3D beamforming Multiple-Input Multiple-Output (MIMO) antenna for emerging size-constrained Internet of Things (IoT) applications. The performance is realized ... -
Small planar monopole covers multiband BRANs
(2000)The use of a single antenna which can cover a wide range of frequencies is a desirable feature for future wireless communications systems. The emerging self-organising and ad-hoc networks require more than an octave ... -
Smoluchowski equation approach for quantum Brownian motion in a tilted periodic potential
(American Institute of Physics, 2008)Quantum corrections to the noninertial Brownian motion of a particle in a one-dimensional tilted cosine periodic potential are treated in the high-temperature and weak bath-particle coupling limit by solving a quantum ... -
The social fashioning of emerging communications infrastructures
(2004)This paper looks at the changing dynamics of the networked experience as new communications infrastructures emerge to support a network body whose disembodied presence is grounded in the necessity of the material. Unlike ... -
Solitary wave propagation in antiferroelectric liquid crystal cells and the quadrupolar term in the interlayer interaction
(American Physics Society, 2007)Planar antiferroelectric liquid crystal (AFLC) cells exhibit propagating solitary waves. By measuring the retardation and the apparent tilt angle, we find that the conventional model for the solitary wave propagation in ... -
Solitary wave propagation in surface stabilized ferroelectric liquid crystal cells
(2008)Solitary wave propagation in surface stabilized ferroelectric liquid crystal cells controlled by surface anchoring of the alignment layers is investigated for different conditions of alignment on the two opposite surfaces. ...
