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The inclusion of triphenyl bismuth (TPB) as an alternative radiopacifier in bone cements with good tensile properties was reported. Using Servohydraulic Testing Machine in accordance with ISO 5833 standard using cylindrical specimens where the ratio of the length to the diameter is 2:1, the compression testing was performed. It was observed that the addition of TPB does not degrade the flexural or

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This paper analyzes frequency-hopping (FH) and time-hopping (TH) as multiple access format for ultrawideband communications. We apply the concept of "fourthegy", recently introduced by Subramanian and Hajek, to both TH and FH. We find that the design rules are different for FCC-compliant systems (where the power spectral density is limited) than for conventional systems (where the energy per bit i

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This paper describes a novel framework for managing connections to mobile hosts in the Internet. The framework, SLM, integrates the notions of quality of service management and mobility management and forms a base for overall session management. We compare SLM with the currently most widely adopted mobility management framework, Mobile IP, and show how some of Mobile IP's deficiencies are overcome

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A model describing the oxygen dynamics in an E. coli fed-batch cultivation is presented. In a linearised version the parameters are estimated and validated with good results. The model is used to discuss the guidelines for feed controller tuning derived in Åkesson 2001.