In this paper the influence of the channel estimation error on the performance of the closed loop Tx diversity algorithms for WCDMA is studied for high number of Tx antennas. The analysed algorithms are recently proposed generalised closed loop Tx diversity, allantenna Tx diversity and one-antenna selection Tx diversity. It was shown that generalised closed loop Tx diversity algorithm is more r...

Model study of multiphase DMS oxidation with a focus on halogens R. von Glasow and P. J. Crutzen Center for Atmospheric Sciences, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, 92093-0221, USA Atmospheric Chemistry Division, Max-Planck-Institut für Chemie, PO Box 3060, 55020 Mainz, Germany Received: 26 October 2003 – Accepted: 12 December 2003 – Publishe...

A method is described for the determination of bromides in biological samples using neutron activation analysis. The specificity of this method eliminates sources of interference from other halogens and contamination of analytical agents with extraneous bromide. In duplicate samples of blood, at varying concentrations of potassium bromide, the mean difference was 4.5% ±1.95 and the mean of the ...

Thyroidectomy (TX) is no longer the preferred choice for the therapy of hyperthyroid Graves' disease but is an alternative in patients who are noncompliant with or have reactions to antithyroid drugs, have moderate to severe ophthalmopathy, have large goiters, or who refuse (131)I therapy and/or long-term antithyroid drug therapy. Seventeen clinically and biochemically severely thyrotoxic patie...

Aryldiazo substituents were used in nucleophilic aromatic substitution reactions of halogens. The Ph-N=N- group activates ortho fluorine atoms toward alkylthiolation under mild conditions. In contrast, the Me(2)N-C(6)H(4)-N=N- group has virtually no activation effect in nucleophilic aromatic substitution, and serves as a "neutral" mask for the amino group. The Ph-N=N- group was efficiently intr...

The parallel performance of the NWChem version 1.2 parallel direct-SCF code has been characterized on ve massively parallel supercomputers (IBM SP, Kendall Square KSR-2, Cray T3D and T3E, and Intel Touchstone Delta) using single-point energy calculations on seven molecules of varying size (up to 389 atoms) and composition ((rst-row atoms, halogens, and transition metals). We compare the perform...

Organic medicinal agents are compounds (molecules) composed of individual atoms linked via chemical bonds. The primary elements of OMAs are carbon (C) and hydrogen (H). Other elements found in lesser abundance in OMA structures include nitrogen (N), oxygen (O), sulfur (S), phosphorous (P) and halogens (F, Cl, Br, I). Examples of the contributions of these atoms in various drug molecules are sho...