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1.
  • Hallgren, Mikael, et al. (författare)
  • The tubed mega frame - An innovative structural system for tall buildings
  • 2015
  • Ingår i: Concrete - Innovation and Design. - : Technical University of Denmark. ; , s. 473-474, s. 473-474
  • Konferensbidrag (refereegranskat)abstract
    • The Tubed Mega Frame is a new structure concept for high-rise buildings which is developed by Tyréns in Sweden. The Tubed Mega Frame consists of large hollow vertical shafts, mega columns, and perimeter walls. In a series of in-depth structural studies, the global response of the system as well as the detailed design of the mega columns and the perimeter walls have been investigated. The studies have been performed on an 800 m high prototype building. Parallel to these studies, the feasibility of the construction process has been the objective in another investigation. The chosen structural material for the Tubed Mega Frame is reinforced high-strength concrete. The conclusions from the studies show that the Tubed Mega Frame is a potentially feasible structural system with high-efficiency for high-rise buildings.
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2.
  • Beck, R., et al. (författare)
  • GPSDTN : Predictive velocity-enabled delay-tolerant networks for arctic research and sustainability
  • 2007
  • Ingår i: Second International Conference on Internet Monitoring and Protection (ICIMP 2007). - Los Alamitos, Calif : IEEE Computer Society Press. - 9780769529110
  • Konferensbidrag (refereegranskat)abstract
    • A Delay-Tolerant Network (DTN) is a necessity for communication nodes that may need to wait for long periods to form networks. The IETF Delay Tolerant Network Research Group is developing protocols to enable such networks for a broad variety of Earth and interplanetary applications. The Arctic would benefit from a predictive velocity-enabled version of DTN that would facilitate communications between sparse, ephemeral, often mobile and extremely power-limited nodes. We propose to augment DTN with power-aware, buffer-aware location- and time-based predictive routing for ad-hoc meshes to create networks that are inherently location and time (velocity) aware at the network level to support climate research, emergency services and rural education in the Arctic. On Earth, the primary source of location and universal time information for networks is the Global Positioning System (GPS). We refer to this Arctic velocity-enabled Delay-Tolerant Network protocol as "GPSDTN" accordingly. This paper describes our requirements analysis and general implementation strategy for GPSDTN to support Arctic research and sustainability efforts
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  • Resultat 1-2 av 2

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