The interdiffusion effects on the band alignment of the GeSi dots embedded in Si matrix were studied by temperatureand excitation-power-dependent photoluminescence measurements. A different power-dependent behavior of the photoluminescence for the as-grown and the annealed samples was observed. It was suggested that the band alignments of the dots changed from type II to type I after annealing ...

CORDIC based cascade orthogonal IIR digital filters have sharp transition band and exhibit low sensitivity in both pass band and stop band which are suitable for VLSI implementations. However, the achievable sample rate of these filters is limited due to the presence of feedback loops. To overcome the speed limitation and achieve high-speed/lowpower implementations, a novel algorithm transforma...

Experimental measurements of acoustic transmission through a solid-solid two-dimensional binary-composite medium constituted of a triangular array of parallel circular steel cylinders in an epoxy matrix are reported. Attention is restricted to propagation of elastic waves perpendicular to the cylinders. Measured transmitted spectra demonstrate the existence of absolute stop bands, i.e., band ga...

n the current intermedíate band solar cells made with InAs quantum dots (QDs) in GaAs, the ransitions by absorption of photons between the intermedíate band and the conduction band for llumination normal to the cell surface is very weak or, more often, undetectable. We model the QD as a jarallelepiped potential well and calcúlate the envelope function of the electrón wavefunctions. By jbtaining...

This paper presents an algebraic approach to construct M-band orthonormal wavelet bases with perfect reconstruction. We first derive the system of constraint equations of M-band filter banks, and then an algebraic solution based on matrix decomposition is developed. The structure of the solutions is presented, and practical construction procedures are given. By using this algebraic approach, so...

Using polyclonal antibodies raised against a rat liver nuclear envelope protein, lamin protein A, the nuclear matrix proteins of a Walker 256 rat mammary carcinoma wild-type (WS) and a selected cell line with acquired resistance to nitrogen mustards (WR) were found to possess antigenic determinants which were recognized by the antibodies. In one-dimensional immunoblotting analysis, the nuclear ...

The 12A00 2 XA 0 1 electronic transition of the B3 molecule with origin band at 5990 cm 1 has been observed in a 6 K neon matrix. A vibrational progression in the spectrum corresponds to the excitation of the m1ða1Þ vibrational mode in the 1 A 00 2 state with a frequency of 1092 cm . The band system was detected after laser ablation of a boron rod and the origin band also after mass-selected de...

A variableband relaxation algorithm for solving large linear systems is developed as an alternative to Gaues-Jacobi relaxation. This algorithm seeks to improve the reliability of Gauss-Jacobi relaxation by extracting a variable-sized band from the matrix and solving that band directly. This leads to a relaxation algorithm with provably better convergence p rop erties. Furthermore, this algorith...

It is shown how to decorrelate the (prewhitened) power spectrum measured from a galaxy survey into a set of high resolution uncorrelated band-powers. The treatment includes nonlinearity, but not redshift distortions. Amongst the infinitely many possible decorrelation matrices, the square root of the Fisher matrix, or a scaled version thereof, offers a particularly good choice, in the sense that...

Experimental and theoretical studies of HXeI and HXeH molecules in Ar, Kr, and Xe matrices are presented. HXeI exhibits the H-Xe stretching bands at 1238.0 and 1239.0 cm(-1) in Ar and Kr matrices, respectively, that are blue-shifted from the HXeI band observed in a Xe matrix (1193 cm(-1)) by 45 and 46 cm(-1). These shifts are larger than those observed previously for HXeCl (27 and 16 cm(-1)) an...