In this chapter, three semantics-based schema conversion methods are presented: 1) CPI converts an XML schema to a relational schema while preserving semantic constraints of the original XML schema, 2) NeT derives a nested structured XML schema from a flat relational schema by repeatedly applying the nest operator so that the resulting XML schema becomes hierarchical, and 3) CoT takes a relatio...

We propose an algorithm for the conversion of grammars from an arbitrary FB-LTAG grammar into a strongly equivalent HPSG-style grammar. Our algorithm converts LTAG elementary trees into HPSG feature structures by encoding the tree structures in stacks. A set of pre-determined rules manipulate the stack to emulate substitution and adjunction. We have used our algorithm to obtain HPSG-style gramm...

We analyse the atomic state obtained by photo-dissociation of a molecular Bose-Einsteincondensate. This process is equivalent to down-conversion in quantum optics where it is responsible for squeezing of the field amplitudes. Monte Carlo simulations derived from the Positive P description of the system, and approximate equations for second moments of the atomic field operators are introduced to...

Abstrac t-We present a time-to-digital converter with a virtual time coding line created as an equivalent of two independent time coding lines operating simultaneously. Proposed solution allows to overcome the technology limitation in achievable resolution and improve the precision of conversion. The new coding line used in the interpolating time counter designed in an FPGA CMOS device provides...

Twenty two preterm infants were prospectively evaluated to assess the need for dose adjustment when converting enteral and parenteral routes of methylxanthine administration. Serum theophylline concentrations remained unchanged in 18 infants after conversion from intravenous aminophylline to theophylline by mouth with dose reduction, as is currently recommended. Intravenous aminophylline and th...

The automatic conversion of Fortran 77 to C can be accomplished using f2c, but the generated code is difficult to read and maintain, and needs to be linked with various non-standard run-time libraries which provide input/output and mathematical routines. This paper describes tools that have been developed at NAG Ltd to automatically replace non-standard run-time f2c input/output functions with ...

A scattered context grammar, G, erases nonterminals in a k-limited way, where k≥ 1, if in every sentential form of any derivation, between every two symbols from which G derives non-empty strings, there occur no more than k nonterminals from which G derives empty words. This paper demonstrates that any scattered context grammar that erases nonterminals in this way can be converted to an equival...

We demonstrate a photon-counting optical time-domain reflectometry with 42.19 dB dynamic range using an ultra-low noise up-conversion single photon detector. By employing the long-wave pump technique and a volume Bragg grating, we achieve a noise equivalent power of -139.7 dBm/√Hz for our detector. We perform the OTDR experiments using a fiber of length approximate 217 km, and show that our sys...