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Träfflista för sökning "(WFRF:(Ruiz R L)) srt2:(2005-2009) srt2:(2005)"

Sökning: (WFRF:(Ruiz R L)) srt2:(2005-2009) > (2005)

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1.
  • Martinez-Perez, M L, et al. (författare)
  • Measurement and modelling of residual stresses in straightened commercial eutectoid steel rods
  • 2005
  • Ingår i: Acta Materialia. - : Elsevier BV. - 1359-6454 .- 1873-2453. ; 53:16, s. 4415-4425
  • Tidskriftsartikel (refereegranskat)abstract
    • Neutron strain scanning measurements on a eutectoid steel rod that has been subjected to standard industrial coiling and straightening operations are presented. Strains were determined non-destructively using two different diffractometers, one at a steady-state neutron source and the other at a pulsed spallation neutron source, with measurements made in both the ferrite and cementite components of the pearlitic microstructure. The residual stress state is explained in terms of a simplified analytical model for a two-phase material, which takes into account the successive loading operations contributing to residual stress. The results show that residual stresses generated by bending–straightening operations are significant and are likely to play an important role in the mechanical properties of the final wires.
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3.
  • Kassler, Andreas, et al. (författare)
  • Supporting Multicast in Ad-Hoc networks in a Hotspot Context
  • 2005
  • Konferensbidrag (refereegranskat)abstract
    • This paper discusses the usage of Ad-Hoc technologies as hotspot extension mechanisms. We propose a hybrid network where 802.16 links are used for providing high-bandwidth access, and local distribution is performed by Ad-Hoc network nodes (based on 802.11 technologies), thus covering arbitrary areas around the 802.16 stations, which might be connected to the Internet. We evaluate the performance of the system and its efficiency in providing QoS in multicast connections. For providing multicasting services, we propose two extensions of the ODMRP and MAODV routing algorithms by augmenting them with a zone routing behavior, thus producing two new hybrid multicast routing algorithms, named ZODMRP and ZMAODV. The simulation results show that ZODMRP provides the highest packet delivery ratio and lowest delay without introducing large overhead, being then able to provide predictable QoS for packet delivery in multicast sessions
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