1 This material is based upon work supported in part by Bellcore, and by the Interstate Electronic Corporation. Abstract There are growing opportunities for the wireless industry to deploy products in unlicensed spectrum, where no licensing is required and devices share spectrum. Unlicensed spectrum offers several benefits, but there are serious challenges to overcome before these benefits can ...

The quantum de Haas-van Alphen (dHvA) and Shubnikov-de Haas oscillations measured in graphite were decomposed by pass-band filtering onto contributions from three different groups of carriers. Generalizing the theory of dHvA oscillations for 2D carriers with an arbitrary spectrum and by detecting the oscillation frequencies using a method of two-dimensional phase-frequency analysis which we dev...

benzyl chloride and tin powder were used to prepare dibenzyltin dichloride according to a literatureprocedure. in this study, ir spectroscopy, homo-lumo energy gap, nbo analysis, polarizability,some geometrical parameters, natural charge and electrical potential of atoms, global hardness,electronic chemical potential, global electrophilicity index, and molar volume of dibenzyltindichloride were...

Electronic government employs electronic services to facilitate interaction with citizens and enterprises and deliver a rich and high quality spectrum of services. Development of electronic services can be greatly assisted, both in terms of development cost and roll-out time, by exploiting the reusability inherent in them. Reusability may be promoted by identifying reusable objects in the conte...

Polarization spectroscopy of photochemically produced spectral holes has been used to obtain the line-narrowed spectrum of the first electronic transition of meso-tetraphenylporphin (TPP) in a PMMA matrix at 10 IL The spectral holes have been burned through irradiation with a pulsed dye laser into the spectral region of several vibronic transitions with overlapping inhomogeneous bands. The corr...

Molecular Dynamics simulations using a surface-hopping method for transitions between different electronic states are employed to study the dynamics following photoexcitation of the Ba(Ar)125 cluster. The results are used to interpret spectroscopic experiments on large, size-distributed Ba(Ar)n clusters. The dynamics of the coupled electronic-nuclear motions in the cluster involves transitions ...

The 351.1 nm photoelectron spectrum of 1-pyrazolide anion has been measured. The 1-pyrazolide ion is produced by hydroxide (HO(-)) deprotonation of pyrazole in a flowing afterglow ion source. The electron affinity (EA) of the 1-pyrazolyl radical has been determined to be 2.938 +/- 0.005 eV. The angular dependence of the photoelectrons indicates near-degeneracy of low-lying states of 1-pyrazolyl...