Now showing items 81-90 of 1507
The effective potential and the renormalisation group
(Elsevier, 1993-04-26)
We discuss renormalisation-group improvement of the effective potential both in general and in the context of O(N) scalar [phi]4 and the Standard Model. In the latter case we find that absolute stability of the electroweak ...
Porous silicon as a sacrificial material
(IOP Publishing Ltd, 1996-12-01)
Porous silicon is emerging in micromachining technology as an excellent material for use as a sacrificial layer. This is largely due to the ease of fabrication and freedom of design it allows. The rate of pore formation ...
LETTER TO THE EDITOR: Exact critical exponent for the shortest-path scaling function in percolation
(IOP Publishing Ltd, 1999-10-29)
It is shown that the critical exponent g1 related to pair-connectiveness and shortest-path (or chemical distance) scaling, recently studied by Porto et al, Dokholyan et al and Grassberger, can be found exactly in two ...
The peak in the thermal conductivity of Cu-O superconductors: Electronic or phononic origin?
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1994-04)
The thermal conductivity К of hole-doped Cu-O plane high- T c perovskites exhibits a dramatic increase below T c which results in a pronounced peak near T c /2. The origin of this peak was initially thought to arise from ...
An evaluation of phase change microcapsules for use in enhanced heat transfer fluids
(Elsevier, 1991)
The results of an experimental study to evaluate the properties of microencapsulated phase change materials have been presented. Two phase change materials, n-eicosane and stearic acid, have been used in the study. The ...
A novel phase focusing mechanism in multipactor discharge
(The American Institute of Physics, 1996-05)
In spite of the mutual repulsion among the space charges, a new phase‐focusing mechanism is discovered whereby the leading edge of the multipactor discharge in an rf circuit grows at the expense of the trailing edge. This ...
The Stability and Response of a Flexible Rod in a Quick Return Mechanism: Large Crank Case
(Elsevier, 1993-09)
The response and stability of a flexible rod, rigid crank quick return mechanism is investigated without a small crank restriction. A Galerkin's approach was found to be too computationally intensive, due to the moving ...
Low energy kinetic threshold in the growth of cubic boron nitride films
(The American Institute of Physics, 1994-04-04)
We report the growth of cubic boron nitride (cBN) films by magnetron sputtering on Si (100) substrates. The films are grown in the presence of negative substrate bias voltages and a nitrogen plasma produced by an electron ...
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 ...
Rotational spectrum and structure of the OCS–(CO2)2OCS–(CO2)2 trimer
(The American Institute of Physics, 1998-10-01)
The rotational spectra of nine isotopes of the mixed trimer, OCS–(CO2)2,OCS–(CO2)2, have been assigned using pulsed nozzle FTMW spectroscopy techniques. The structure resembles a distorted triangular cylinder. It can be ...