Light trapping effect in silicon wafers with anodically etched surfaces

Received: 10 May 1996/Accepted: 19 November 1996     

Silicone glue based solid phase microextraction fiber for amino acid determination

A solid phase microextraction fiber based on high temperature silicone glue coated on a stainless steel wire is presented for use in the extraction of amino acid derivatives. Amino acids were derivatizad using ethyl chloroformate. Effects of the extraction and desorption parameters including extraction and desorption time, desorption temperature and ionic strength on the extraction/desorption efficiency have been studied and quality parameters of the method were measured. A possibility to apply the proposed method for the identification of proteinaceous binders was demonstrated.     

Generalized (f,U s,u t , λ s t )-structures

iauliai Pedagogical Institute, P. Viinskio str. 25, 5419 iauliai, Lithuania. Translated from Lietuvos Matematikos Rinkinys, Vol. 33, No. 2, pp. 135–141, April–June, 1993.     

On the Gerber-Shiu discounted penalty function for subexponential claims

We obtain the asymptotics of the Gerber-Shiu discounted penalty function in the classical Lundberg model. We cosider claims from a class of subexponential distributions and find the asymptotics as the initial surplus x tends to infinity. The main term of the discounted penalty function ψ(x, δ) has different expressions in the cases where the interest rate δ > 0 and where δ = 0. Published in Lietuvos Matematikos Rinkinys, Vol. 46, No. 4, pp. 598–605, October–December, 2006.     

Density Functional Calculation of the Photoelectron Emission Spectra of BiSCl Crystal and Molecular Clusters

The photoelectron emission spectra of BiSCl crystal and molecular clusters have been calculated by the Density Functional Theory (DFT) method. Molecular clusters consists from 2 to 20 molecules in one double chain along z(c) axis. Total and partial density of states of BiSCl crystal and clusters have been weighted with atomic photoemission emission cross-section. The molecular clusters have been investigated including all normal modes of vibration. Theoretical results of BiSCl crystal and molecular clusters have been compared with experimental X-ray photoelectron emission spectra (XPS) of BiSI crystal.