The geometries and energies of small silicon clusters have been investigated in a systematic manner by means of accurate ab initio calculations.
The chemical reactions of small silicon cluster ions with many different reagent molecules in the gas phase have been studied recently by several groups.
It has long been the stated aim of the Bell System to make it easily and economically possible for any telephone customer in the United States to reach any other telephone in the world.
The experimental situation with regard to the properties of the EL2 defect is now so rich that there is no microscopic model of EL2 which is not in conflict with one or more experiments, at least,
We comment on two theories of the homogeneous linewidths of optically active impurities in glasses.
The recent development of the scanning tunneling microscope (STM) with its unique capability of directly imaging surface structure, with atomic resolution, promises to revolutionize the conceptual
A methodology for designing digital circuits is described for systems using free-space optics as an interconnection medium.
The optical properties of microstructured photonic waveguides are governed, in the scalar approximation, by a Schroedinger equation with a high contrast and oscillatory potential.
An adjustable equalizer was developed to compensate for the changes of attenuation in carrier transmission lines.
The reflectometer measures standing waves, reflection coefficient and power transfer on coaxial lines operating up to 1 000 Mc/s.
