Polymer Processors

Effect of platinum on Ceria supported Cu catalysts for PrOx process in fuel processors

The CO preferential oxidation (PrOx) is one of the critical steps in hydrogen production and purification for Polymer Electrolyte Membrane Fuel Cell (PEMFC). This reaction was investigated in the presence of excess hydrogen over Cu/CeO2, Pt/CeO2 and Cu-Pt/CeO2 catalysts. The ceria supports was prepared via precipitation method and Cu-Pt/CeO2 catalyst was synthesized by sequential impregnation o...

Simulating Synthetic Polymer Chains in Parallel

We have investigated algorithms that are particularly suited for the parallel MD simulations of synthetic polymers. These algorithms distribute the atoms of the polymer among the processors. Dynamic non{ bonded interactions, which are the diicult part of an MD simulation, are realised with the help of a special coarse{grained representation of the chain structure. We have devised and compared a...

Modeling and Performance Evaluation of Multi-Processors Organization with Shared Memories

This paper is primarily concerned with theoretical evaluation of the performance of multiprocessors system. A markovian waiting line model has been developed for various different multi-processors configurations, with shared memory. The system is analysed at the request level rather than job level.

The Effects of Word-Processors (CALL) on Iranian EFL University Students' Writing Achievements

Broadband Multi-service In-house Networks Using Mode Group Diversity Multiplexing

Multiple broadband services are carried independently in a highly multimode polymer optical fibre network by selectively launching and detecting several mode groups, while counteracting mode-mixing by adaptive electrical signal processing. With cheap integrated signal processors, mode group diversity multiplexing can offer the same functionality as wavelength multiplexing at lower costs. © 2002...