Now showing items 31-40 of 255
Double-slot antennas on extended hemispherical and elliptical quartz dielectric lenses
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1993-10)
In this paper, the theoretical far-field patterns and Gaussianbeam coupling efficiencies are investigated for a double-slot antenna placed on quartz hemispherical lenses with varying extension lengths. The radiation patterns ...
Bounding the tau neutrino magnetic moment from single photon searches at LEP
(Elsevier, 1994-08-04)
We show that single photon searches at LEP constrain the tau neutrino magnetic moment to be less than . This bound is competitive with low energy ([radical sign]s [reverse similar, equals] 30 GeV) single photon searches.
Local and band approaches to actinide systems
(Elsevier, 1991-05-01)
We investigate two models of interest in the context of actinide and rare earth systems. We extend previous work on the Anderson model for two magnetic configurations and obtain the singlet quasiparticle energy to next ...
Implications of for supersymmetry searches and model-building
(Elsevier, 1994-10-27)
Assuming that the actual values of Mt at FNAL and of at LEP are within their current 1[sigma] reported ranges, we present a No-Lose Theorem for superpartner searches at LEP II and an upgraded Tevatron. We impose only two ...
A fast algorithm for Chebyshev, Fourier, and sinc interpolation onto an irregular grid
(Elsevier, 1992-12)
A Chebyshev or Fourier series may be evaluated on the standard collocation grid by the fast Fourier transform (FFT). Unfortunately, the FFT does not apply when one needs to sum a spectral series at N points which are spaced ...
A front-tracking method for viscous, incompressible, multi-fluid flows
(Elsevier, 1992-05)
A method to simulate unsteady multi-fluid flows in which a sharp interface or a front separates incompressible fluids of different density and viscosity is described. The flow field is discretized by a conservative finite ...
Bimolecular reaction A + B --> 0 at steady state on fractals: Anomalous rate law and reactant self-organization
(Elsevier, 1990-10-01)
This paper is a theoretical investigation of the diffusion limited reaction A + B --> 0 at steady state and on fractal structures. We propose an extension of a scheme previously applied to Euclidean spaces, using the ...
Asymptotic analysis of the shock wave ignition of dust particles
(Elsevier, 1990-09)
The critical energy required to initiate dust detonations in tubes of finite diameter depends on the structure of the reaction zone, and especially upon the length of the induction zone, which, in turn, is determined by ...
Weak disorder expansions for the Anderson Model on a one dimensional strip at the center of the band
(Springer-Verlag, 1992-10)
We study the asymptotic behavior of the averaged diagonal matrix elements of the Greens kernel for the Anderson Model on a one-dimensional strip and for a set of special energies close to the center of the band.
A portable positron accumulator for antihydrogen formation
(Baltzer Science Publishers, Baarn/Kluwer Academic Publishers; J.C. Baltzer AG, Science Publishers ; Springer Science+Business Media, 1993-12)
A pulsed source of positrons has been developed which may be useful for antihydrogen ( ) formation because it is portable when compared to accelerator-based sources. This positron accumulator uses a Penning-style trap to ...