Let Q : R-R be even, nonnegative and continuous, Q0 be continuous, Q040 in ð0;NÞ; and let Q00 be continuous in ð0;NÞ: Furthermore, Q satisfies further conditions. We consider a certain generalized Freud-type weight W 2 rQðxÞ 1⁄4 jxj 2r expð 2QðxÞÞ: In previous paper (J. Approx. Theory 121 (2003) 13) we studied the properties of orthonormal polynomials fPnðW 2 rQ; xÞg N n1⁄40 with the generalize...

Acknowledgements Firstly, I would like to thank my supervisor, Dr David R. Kohel whose many helpful comments and patient guidance made this thesis possible. Secondly, I would like to thank David Gruenwald for volunteering his time to proofread this thesis. Almost all of his recommendations were taken on board. This thesis is the better for it. To a less extent, my thanks go to the IT school of ...

The following paper describes a case of increasing the overload capability of a 70 MVA power transformer up to 100 MVA. The realization of this project was done in close collaboration between the utility and the manufacturer. Primarily, EDF R&D performed thermohydraulic calculations that confirm the feasibility of this project. Secondly, the manufacturer confirms the ability of the transformer ...

This paper presents a new simple scheme for theft-protected proprietary certificate problem by introducing a mobile phone as an additional requirement for the proprietor and this scheme is analyzed to be more secured than the one presented by M. Jakobsson, et al. Secondly we present the proprietary certification process using Elliptic Curve Discrete Log Problem (ECDLP) instead of Discrete Log P...

Human development, in combination with technology, yields economic growth which, in turn, is necessary to generate further advances in human development. This paper focuses on the first channel above and finds the relationship significant. Secondly, the paper tries to investigate what affects technology change, as represented by TFP. We examine the influence of openness, FDI, patents and R&D in...

The aim of the investigation is to validate the potential of SAS crystallization process to resolve racemic ibuprofen. The resolution is performed via diastereomic salt formation and subsequent salt precipitation in a supercritical CO2 environment. Firstly, the operating conditions, using (S)-α-methylbenzylamine as resolving agent, were optimized. Secondly, the measurement of the binary phase d...

This article is an attempt to promote R&D methodology that is actionoriented in order to improve the development of tele-learning environments and software artefacts fully adapted to learning activities. First we start by presenting an overview of the two main phases of action-oriented research, stressing the importance of control methods. Secondly, we describe difficulties in applying these me...

Formal concept analysis (FCA) is a valid tool for data mining and knowledge discovery, which identifies concept lattices from binary relations. Given a nonempty finite set A of binary attributes, one obtains a maximal binary relation R based on a relation schema S(A). Firstly, we analyze concepts in R and the concept lattice L(R), and there are some important results as follows: for any two con...

The problem of indexing multidimensional objects is considered. First, a classification of existing methods is given along with a discussion of the major issues involved in multidimensional data indexing. Second, a variation to Guttman’s R-trees (R+-trees) that avoids overlapping rectangles in intermediate nodes of the tree is introduced. Algorithms for searching, updating, initial packing and ...