In this paper we obtain a new parameterization of all FIR paraunitary two-channel filter banks. Unlike other approaches which make use of a lattice structure or a cascade algorithm, we show that our technique provides a direct explicit expression of all FIR orthogonal filters, with no need of iteration procedures. Thus, in order to design a L-tap 2-channel paraunitary filterbank, it suffices to...

background: cigarette butts have been shown to release numerous kinds of chemicals such as heavy metals in water and may be a continual source of aquatic environments contamination after discarding. the objective of the present study was to determine the concentration of cd and pb in cigarette filters of different iranian and non-iranian brands in smoked and non-smoked samples. methods: ten dif...

Three novel adaptive multichannel L-filters based on marginal data ordering are proposed. They rely on well-known algorithms for the unconstrained minimization of the Mean Squared Error (MSE), namely, the Least Mean Squares (LMS), the normalized LMS (NLMS) and the LMS-Newton (LMSN) algorithm. Performance comparisons in color image filtering have been made both in RGB and U∗V ∗W ∗ color spaces. ...

ing object-interactions using composition-filters. In R. Guer-raoui, O. Nierstrasz, and M. Riveill, Eds., Object-based Distributed Pro-cessing, Springer-Verlag, 1993. 3. Aksit, M., Bosch, J., Sterren, W., and Bergmans, L. Real-time specifi-cation inheritance anomalies and real-time filters. In Proceedings ofECOOP ‘94, Springer Verlag, 1994.4. Aksit, M. and Bergmans, L. Guide...

Introduction In the underlying study we evaluated different single-use filtration systems for cell separation and harvest clarification in 1,000 L scale. A screening of different depth filters was carried out with various single-use filters from Pall, Cuno (3M), Millipore and Sartorius Stedim. In total, we included 85 depth filtrations in the screening. Out of that, two single-use filtration sy...

Background: Cigarette butts have been shown to release numerous kinds of chemicals such as heavy metals in water and may be a continual source of aquatic environments contamination after discarding. The objective of the present study was to determine the concentration of Cd and Pb in cigarette filters of different Iranian and non-Iranian brands in smoked and non-smoked samples. Methods: Ten d...

The present study investigated the coupling effect of biodegradation and media filtration in treating hydrocarbon contaminated water. The study recorded reductions in total petroleum hydrocarbon, total dissolved solids, turbidity and microbial load. The study was essentially a simulated pump and treat process that involved the pumping of hydrocarbon contaminated water for treatment in a locally...

Convolutive source separation is often done in two stages: 1) estimation of the mixing filters and 2) estimation of the sources. Traditional approaches suffer from the ambiguities of arbitrary permutations and scaling in each frequency bin of the estimated filters and/or the sources, and they are usually corrected by taking into account some special properties of the filters/sources. This paper...

This paper discusses two new designs of reconfigurable perfectly-matched bandstop filter which is based on L-shape and ring resonator. The perfectly-matched bandstop filters can be reconfigured between allpass and bandstop response using PIN diodes as switching elements. The operating center frequency of these filters is at 1 GHz. The discussions of the conceptual perfectly-matched bandstop fil...