Browsing Electronic & Electrical Eng (Scholarly Publications) by Title
Now showing items 500-519 of 560
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Teamwork and Collaboration in Cognitive Wireless Networks
(IEEE Communications Society, 2007)This article looks at the principles and significant potential of teamwork in cognitive networks. These concepts represent a new evolutionary stage in the development of cognitive radio and cognitive networks, where wireless ... -
A Technique for Controlling the Proportion of Information in the Sonification of Complex Time Series Data
(2022)This paper presents a technique for controlling the proportion of information present in parameter mapping sonifications which use time-series data. It suggests treating parameter mapping sonification as the addition of a ... -
Telephony-based voice pathology assessment using automated speech analysis
(IEEE, 2006)A system for remotely detecting vocal fold pathologies using telephone-quality speech is presented. The system uses a linear classifier, processing measurements of pitch perturbation, amplitude perturbation and harmonic-to-noise ... -
Temperature-induced sign reversal of biaxiality observed by conoscopy in some ferroelectric Sm- C* liquid crystals
(2007)We have studied various ferroelectric liquid crystals to find the average molecular direction of the shortest axis in the perfectly unwound state by using tilted conoscopic measurements. We find that there exist two types ... -
Ten years of digital visual restoration systems
(2007)With the growth in marketability of all forms of visual media comes the need to exploit archive material more effectively, and a requirement to guarantee picture quality regardless of the originating medium. Some kind ... -
Testbed Federation: An Approach for Experimentation-driven Research in Cognitive Radios and Cognitive Networking
(2011)The sub-optimal exploitation of radio spectrum is widely accepted. Cognitive radio is a technol ogy that aims to address this issue and improve the overall efficiency of radio spectrum utiliza tion. However, this ... -
Theory of the intermediate tilted smectic phases and their helical rotation
(2006)A molecular-statistical theory for the entire sequence of the chiral tilted smectic phases is derived. Uniaxial and biaxial subphases were found to be stable in different temperature ranges depending on the molecular parameters. ... -
Thermal fluctuations of magnetic nanoparticles: fifty years after Brown
(2012)The reversal time, superparamagnetic relaxation time, of the magnetization of fine single domain ferromagnetic nanoparticles owing to thermal fluctuations plays a fundamental role in information storage, paleomagnetism, ... -
Thermally activated escape rate for a Brownian particle in a double-well potential for all values of the dissipation
(American Institute of Physics, 2006)The translational Brownian motion of a particle in a tilted washboard potential is considered. The dynamic structure factor and longest relaxation time are evaluated from the solution of the governing Langevin equation by ... -
Thermally activated escape rate for the Brownian motion of a fixed axis rotator in a double well potential for all values of the dissipation
(American Institute of Physics, 2004)The rotational Brownian motion of fixed axis rotators in a double well cosine potential was analyzed using the extension of the Kramers theory of the escape rate of a Brownian particle from a potential well to the entire ... -
Thermally activated escape rate for the Brownian motion of a fixed axis rotator in an asymmetrical double-well potential for all values of the dissipation
(American Institute of Physics, 2005)The Kramers theory of the escape rate of a Brownian particle from a potential well as extended by Mel'nikov and Meshkov, [J. Chem. Phys. 85, 1018 (1986)] is used to evaluate the relaxation times and the dynamic susceptibility ... -
Thermally activated escape rates of uniaxial spin systems with transverse field: uniaxial crossovers.
(American Physical Society, 2000)Classical escape rates of uniaxial spin systems are characterized by a prefactor differing from and much smaller than that of the particle problem, since the maximum of the spin energy is attained everywhere on the line ... -
Thermally activated relaxation time of a single domain ferromagnetic particle subjected to a uniform field at an oblique angle to the easy axis: Comparison with experimental observations
(American Physical Society, 1998)New asymptotes of the relaxation time of the magnetic moment of a single domain particle with a uniform magnetic field applied at an oblique angle to the easy axis (in excellent agreement with exact numerical results from ... -
Thermotropic Biaxial Nematic Phase in Liquid Crystalline Organo-Siloxane Tetrapodes
(2004)Infrared absorbance measurements have been carried out on two liquid crystalline organo-siloxane tetrapodes. Results unambiguously show the existence of a biaxial nematic phase below a uniaxial nematic phase. The three ... -
Threshold learning from samples drawn from the null hypothesis for the generalized likelihood ratio cusum test
(2005)Although optimality of sequential tests for the detection of a change in the parameter of a model has been widely discussed, the test parameter tuning is still an issue. In this communication, we propose a learning strategy ... -
Throughput-Efficient Dynamic Coalition Formation in Distributed Cognitive Radio Networks
(2010)We formulate the problem of distributed throughput-efficient sensing in cognitive radio (CR) networks as a dynamic coalition formation game based on a Markovian model. The proposed coalition formation enables the CRs to ... -
Tip-enhanced secondary emission of a semiconductor quantum dot
(American Institute of Physics, 2008)The interaction between interface plasmons within a doped substrate and quantum dot electrons or holes has been theoretically studied in double heterostructures based on covalent semiconductors. The interface plasmon modes, ... -
Towards a fluid spectrum market for exclusive usage rights
(IEEE, 2007)This paper focuses on highly fluid markets for trading exclusive spectrum usage-rights. The purpose of the paper is to underline the need for flexible usage-rights policies, as a core facilitator of such markets as well ... -
Towards a Hardware Realization of Time-Frequency Source Separation of Speech
(IEEE, 2005)This paper presents preliminary work on a hardware implementation of a source separation algorithm employing time-frequency masking methods. DUET (Degenerate Unmixing Estimation Technique) has previously been shown ...
