• Finite element modeling of porous solid propellants 

      Xu, F.; Sofronis, P.; Aravas, N.; Namazifard, A.; Fiedler, R. (2005)
      The effect of porosity on the constitutive response of a linearly viscoelastic solid that obeys a constitutive law of the standard differential form is investigated under small strain deformation conditions. It is demonstrated ...
    • Layered multicast rate control based on lagrangian relaxation and dynamic programming 

      Kar, K.; Tassiulas, L. (2004)
      In this paper, we address the rate control problem for layered multicast traffic, with the objective of solving a generalized throughput/fairness objective. Our approach is based on a combination of lagrangian relaxation ...
    • Plasma diffusion and relaxation in a magnetic field 

      Kourakis, I.; Grecos, A. (2003)
      A Fokker-Planck-type kinetic equation modeling a test-particle weakly interacting with an electrostatic plasma, in the presence of a magnetic field B, is analytically solved. Explicit expressions are obtained for variable ...