Browsing by Subject "Materials science"

Now showing items 1-5 of 5

    • Conference Object  

      A broadband balun using metamaterial phase-shifting lines 

      Antoniades, Marcos A.; Eleftheriades, G. V. (2005)
      A 3-port device that converts a single-ended input to a differential output over a large bandwidth is presented. The balun comprises a Wilkinson divider, followed by a +90° negative-refractive-index (NRI) metamaterial (MM) ...
    • Article  

      An investigation of printed Franklin antennas at X-band using artificial (metamaterial) phase-shifting lines 

      Wang, P. P.; Antoniades, Marcos A.; Eleftheriades, G. V. (2008)
      Non-radiating artificial phase-shifting lines are constructed using conventional positive-refractive-index (PRI) transmission lines (TL) and the recently developed negative-refractive-index (NRI) transmission lines. The ...
    • Article  

      Recent advances in spintronics. Half-metal ferromagnets: Their role in spintronics 

      Gardelis, S.; Androulakis, J.; Migiakis, P.; Giapintzakis, John (2004)
      A review of recent advances in spintronics is presented. We report the structural, magnetic, electrical and thermal properties of the ferromagnetic half-Heusler alloy NiMnSb grown by arcmelting. The bulk material is used ...
    • Conference Object  

      Rheology of semisolid suspensions 

      Alexandrou, Andreas N.; Burgos, G. R.; Entov, V. M. (Affiliation: Semisolid Processing Laboratory, Metal Processing Institute, WPI, Worcester, MA 01609, United StatesAffiliation: Polytech. University of Puerto Rico, Mechanical Engineering Department, San Juan 00918, Puerto RicoAffiliation: Institute for Problems in Mechanics, Russian Academy of Science, pr. Vemadskogo, 101, 117526 Moscow, Russian FederationCorrespondence Address: Alexandrou, A.N.Semisolid Processing Laboratory, Metal Processing Institute, WPI, Worcester, MA 01609, United States, 2000)
      The effective use of the semisolid process presumes a good theoretical framework to describe it. The understanding of semisolid behavior should be based upon a combination of basic and empirical knowledge in versatile ...
    • Article  

      Viscoplastic flow development in a channel with slip along one wall 

      Panaseti, Pandelitsa; Georgiou, Georgios C. (2017)
      The flow development of a Herschel–Bulkley fluid in a horizontal channel is considered assuming that slip occurs only on the upper wall due to slip heterogeneities. Hence, the velocity profile is allowed to be asymmetric ...