When block modulation codes are concatenated with an error-correction code (ECC) in the standard way, the use of long block lengths results in error-propagation. This paper analyzes the performance of modiied con-catenation, which involves reversing the order of modulation and ECC. This modiied scheme reduces error propagation, provides greater exibil-ity in the choice of parameters, and facili...

In this paper we suggest a new data structure for location management in mobile networks. The data structure is based on the tree location database structure. We suggest replacing the root and some of the higher levels of the tree with another structure that balances the average load of search requests. For this modi cation we use a set-ary butter y network, which is a generalization of the wel...

Poly(methylene blue) modi®ed electrodes have been prepared by potential cycling from aqueous electrolyte solution containing methylene blue on glassy carbon substrates. They have been used successfully for the determination of haemoglobin via its electrooxidation at ®xed potential using the batch injection analysis technique in which whole blood samples diluted with phosphate or acetate buffer ...

An important class of robotic applications potentially involves multiple, cooperating robots: security or military surveillance, rescue, mining, etc. One of the main challenges in this area is e ective cooperative control: how does one determine and orchestrate individual robot behaviors which result in a desired group behavior? Cognitive (planning) approaches allow for explicit coordination be...

In this paper, we describe an interactive procedure algorithm for convex multiobjective programming based upon the Tchebyche method, Wierzbicki's reference point approach, and the procedure of Michalowski and Szapiro. At each iteration, the decision maker (DM) has the option of expressing his or her objective-function aspirations in the form of a reference criterion vector. Also, the DM has the...

We propose a Modi ed Fourier Descriptor and a new dis tance measure for describing and comparing closed planar curves Our method accounts for spatial discretization of shapes an issue seldom mentioned much less addressed in the literature The motivating application is shape matching in the Multimedia Analysis and Retrieval System MARS our content based image retrieval system The application req...

In a seminal paper Nagar (1959) obtained …rst and second moment approximations for the k-class of estimators in a general static simultaneous equation model under the assumption that the structural disturbances were i.i.d and normally distributed.Later Mikhail (1972) obtained a higher-order bias approximation for 2SLS under the same assumptions as Nagar while Iglesias and Phillips (2010) obtain...

We degenerate the finite gap solutions of the KdV equation from the general formulation in terms of abelian functions when the gaps tends to points, to recover solutions of KdV equations given a few years ago in terms of wronskians called solitons or positons. For this we establish a link between Fredholm determinants and Wronskians.

Assume that the meaning of module A is modi ed by module B. If the modi cation can be detected by inspecting module A, then we say that the modi cation is invasive. Non-invasive modi cation makes it possible to reuse code which is \almost right" for a given purpose, even if we cannot change it. How much of a problem is it, if points of variability in source code must be marked explicitly? This ...

Modi cation of speech is a subject of major interest today, with numerous applications including text to speech synthesis. The basic mechanisms behind this process often consist of pitch-scale and time-scale modi cations of speech. While giving generally good results, it remains in most of the cases that the same speaker can be associated with the original signal and its modi ed version, which ...