This paper addresses the modeling of certain rate-dependent mechanisms which contribute to hysteresis inherent to piezoelectric materials operating at low frequencies. While quasistatic models are suitable for initial material characterization in some applications, the reduction in coercive eld and polarization values which occur as frequencies increase must be accommodated to achieve the full ...

Hypergraph Operations, and Logi al Types A. Blumensath 1 Universität Darmstadt Fa hberei h Mathematik, AG 1 S hloÿgartenstraÿe 7 64289 Darmstadt Germany B. Cour elle LaBRI Bordeaux 1 University 351, Cours de la Libération 33405 Talen e edex Fran e Abstra t We study several algebras of graphs and hypergraphs and the orresponding notions of equational sets and re ognizable sets. We generalize and...

Objetivo: Profissionalismo, tema central na educação médica e no cuidado com os pacientes, envolve mais do que apenas conhecimento dos padrões de competência da profissão. Contudo, as formas ocultas ensino envolvem o risco não ser assimilado maneira consciente pelos discentes. Reconhecer a percepção aprendizagem formação pode proporcionar mudanças abordagem deste construto. Metodologia: Trata-s...

contact:Paul Feron phone: +61 (0) 2 4960 6022 email: [email protected] Introduction CSIRO has developed a post-combustion CO2 capture (PCC) R&D program consisting of two major components, a pilot plant programme and a laboratory research programme, which are operated in an integrated manner. The programme is almost exclusively focused on reactive liquid absorption liquids for the capture of C...

A workshop devoted to the mathematical foundations of Robustness, Abstractions and Computations as well as their applications will be held at the University of Pennsylvania, March 28, 2004. This workshop will act as a forum to both identify and disseminate the existing technologies and mathematical results to a wide range of Engineering and Mathematical disciplines, and to identify the future r...

The title compound, C(14)H(12)ClNO, is a Schiff base derived from the condensation of equimolar quanti-ties of 5-chloro-salicylaldehyde and 1-benzyl-amine. The mol-ecule has a trans configuration with respect to the imine C=N double bond. The N atom is involved in an intra-molecular O-H⋯N hydrogen bond.

Adaptive modulation exploits the time-variant channel capacity uctuation of fading channels using a range of di erent modem modes according to Equation 1 and Table1. This is achieved at the cost of some latency penalty, which is quanti ed in this treatise and mitigated by frequency hopping.

We consider an extension of the guarded fragment in which one can guard quanti ers using the transitive closure of some binary relations. The obtained logic captures the guarded fragment with transitive guards, and in fact extends its expressive power non-trivially, preserving the complexity: we prove that its satis ability problem is 2Exptime-