Now showing items 71-80 of 854
Role of numerical simulations in the semiconductor heterostructure technology using molecular beam epitaxy
(Elsevier, 1986)
The present and potential role of computer simulations in understanding the growth and fabrication of heterostructure interfaces grown by molecular beam epitaxy (MBE) is discussed. The important atomistic processes involved ...
The strong CP problem in orbifold compactifications and an SU(3)[circle times operator]SU(2)[circle times operator]U(1)n model
(Elsevier, 1988-06-30)
We point out that the anomalous U(1)'s arising frequently in nonstandard embeddings of orbifold compactification is the needed Peccei-Quinn symmetry which can be broken at the intermediate scale. We show this in an orbifold ...
Neutron-nuclei total cross sections at 27 GeV/c
(Elsevier, 1968-08-05)
The total cross sections for 27 GeV/c neutrons on eight heavy elements, Be through U, has been measured and found to obey the empirical relationship [sigma]T = 48A0.75mb.
Thermal conductivity of high- T c superconductors
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1990-12)
This paper reviews existing data on the thermal conductivity of high- T c superconductors. Included are discussions of pristine polycrystalline high- T c ceramics, single crystal specimens, and high- T c materials structurally ...
802GHz integrated horn antennas imaging array
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1991-05)
This short paper presents the pattern measurements at 802GHz of a single element in a 256-element integrated horn imaging array. The integrated-horn antenna consists of a dipole-antenna suspended on a 1μm dielectric membrane ...
Splitting of the phonon spectrum in 3 He- 4 He solutions
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1973-07)
The dynamic structure function for 4 He- 4 He density correlations S 44 ( k , ω) is calculated as a function of the wave vector k and frequency ω for a simple model of a 3 He- 4 He solution at various temperatures and small ...
On some new production processes for [approximate] 1012 eV muons
(Elsevier, 1968-10-28)
Callan and Glashow and Keuffel have proposed the existence of U and W particles respectively, to explain the lack of zenith angular dependence of cosmic ray muons in the experiment by the Utah group. Arguments are presented ...
Parity violation correlations in light muonic atoms
(Springer-Verlag, 1989-12)
The 2 S -1 S transition in light muonic atoms is very sensitive to parity violation correlations induced via neutral currents. Observables depending on these transitions such as the photon polarization and the angular ...
The ultrahigh-peak-power laser: present and future
(Springer-Verlag, 1997-08)
to 10 20 -W/cm 2 range. With some refinements and with superior energy storage materials, even higher peak power in the petawatt range should be possible from tabletop systems. In this paper we show the ultimate achievable ...
Correlation between (6Li, 8B) two-proton pickup and (d, 6Li) [epsilon]-particle pickup in the zirconium region
(Elsevier, 1980-05-19)
Spectra have been measured for the 94,98Mo(6Li, 8B)92,96Zr reactions at 90 MeV. Differences in transition strengths for the first excited 0+ states, first noted in some recent (d, 6Li) work, are quantitatively accounted ...