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A passive system is one that cannot produce energy, a property that naturally poses constraints on the system. A system on convolution form is fully described by its transfer function, and the class of Herglotz functions, holomorphic functions mapping the open upper half plane to the closed upper half plane, is closely related to the transfer functions of passive systems. Following a well-known re
We present extensive density-functional theory (DFT) based calculations of the clean Rh(111) surface and of CO/Rh(111) overlayer systems. We study both ground-state structural properties and core-level shifts from differences in total energies at different coverages and adsorption sites. Most results are obtained using using norm-conserving or ultrasoft pseudopotentials. The overall reliability of
Procedures for sample clean-up and concentration in Capillary Zone Electrophoresis (CZE) have been developed for determination of drugs in biosample s. An on-capillary concentration technique based on enhanced field strengths, the double stacking procedure is introduced. This procedure allows for concentrationg all cations in the sample several hundred times essentially without loss of separation
