Now showing items 31-40 of 169
Full-wave electromagnetic and thermal modeling for the prediction of heat-dissipation-induced RF-MEMS switch failure
(IOP Publishing Ltd, 2006-01-01)
We propose an extended finite element-boundary integral method (EFE-BI) to model the electromagnetic (EM) behavior of RF-MEMS switches over a wide frequency range from UHF to terahertz. Our new method integrates EM with ...
Estimation of locations of bioelectric sources using an equivalent filter
(IOP Publishing Ltd, 1990-08-01)
The authors estimate the number and locations of bioelectric sources in a horizontally layered volume conductor. By modelling the extracellular medium as an equivalent filter, the location estimation problem becomes one ...
TOPICAL REVIEW: Microscopic theory of exciton coherent control and Rayleigh scattering in semiconductor quantum wells
(IOP Publishing Ltd, 2000-12-01)
We present a bosonic description of excitons created by means of resonant optical pumping in a quantum well in the presence of a weak disorder potential. The excitonic collective state is a Glauber coherent state, closely ...
Electron-hole superconductors
(Elsevier, 1990-09)
It is argued that a liquid of Ne electrons and Nh holes may show an instability against the formation of bound two-electron states of spin S = O for NeNh. The pairing relies on the attractive static interaction of the ...
Identifiability of flow distributions from link measurements with applications to computer networks
(IOP Publishing Ltd, 2007-10-01)
We study the problem of identifiability of distributions of flows on a graph from aggregate measurements collected on its edges. This is a canonical example of a statistical inverse problem motivated by recent developments ...
Theoretical studies of polarization dependent electro-optical modulation in lattice matched and strained multi-quantum well structures
(Elsevier, 1987)
We report on polarization dependent optical absorption for excitonic and interband transitions in lattice matched (GaAs/AlGaAs) and strained (biaxial tensile strain - GaAsP/AlGaAs; biaxial compressive strain - InGaAs/AlGaAs) ...
Scattering by small thin dielectric particles
(Springer-Verlag, 1985-12)
In the analysis of electromagnetic scattering by distributions of small dielectric particles an approximation to the scattered field can be obtained by representing the electrical interaction of the particles in terms of ...
A filtering approach to the two-dimensional volume conductor forward and inverse problems (biomedical application)
(IOP Publishing Ltd, 1991-04-01)
The two-dimensional layered volume conductor forward and inverse problems are solved by modelling the medium as an equivalent two-dimensional filter relating the source and measured potentials. This extends previous results ...
Concerning the emergence of tag-mediated lookahead in classifier systems
(Elsevier, 1990-06)
This paper, after a general introduction to the area, discusses the architecture and learning algorithms that permit automatic parallel, distributed lookahead to emerge in classifier systems. Simple additions to a "standard" ...
Transient analysis of the TRAPATT mode in avalanche diodes
(Elsevier, 1978-10)
The start-up transient behavior of the TRAPATT mode of oscillation in both n+pp+ and p+nn+ Si avalanche diodes is studied by computer simulation in the time domain through a device-circuit interaction program. The start-up ...