Navegação Ciências Exatas e da Terra por Assunto "Diffusion"

Resultados 1-3 de 3

    • Cooperation in diffusive spatial games 

      Vainstein, Mendeli Henning; Silva, Ana Tereza Costa; Arenzon, Jeferson Jacob (2007) [Artigo de periódico]
      Random diffusion is shown to be an important mechanism on fostering cooperative behavior among simple agents (memoryless, unconditional cooperators or defectors) living on a spatially structured environment. In particular, ...

    • Evidence of thin helium envelopes in PG 1159 stars 

      Althaus, Leandro Gabriel; Córsico, Alejandro Hugo; Bertolami, Marcelo Miguel Miller; García-Berro, Enrique; Kepler, Souza Oliveira (2008) [Artigo de periódico]
      We present evidence that PG 1159 stars could harbor He-rich envelopes substantially thinner than those predicted by current evolutionary models with current estimates of mass loss, which may be attributable to an extensive ...

    • Solar wind strahl broadening by self-generated plasma waves 

      Pavan, Joel; Figueroa Viñas, Adolfo; Yoon, Peter H.; Ziebell, Luiz Fernando; Gaelzer, Rudi (2013) [Artigo de periódico]
      This Letter reports on the results of numerical simulations which may provide a possible explanation for the strahl broadening during quiet solar conditions. The relevant processes involved in the broadening are due to ...