Navegação Ciências Exatas e da Terra por Assunto "Moléculas"

Resultados 1-4 de 4

    • Band strength factors with asymptotic expansion for Morse-Pekeris oscillators 

      Gallas, Jason Alfredo Carlson; Grieneisen, Hans Peter Henrik; Chakraborty, Bijoy P. (1978) [Artigo de periódico]
      Band strength factors have been calculated by asymptotic expansion technique for N+2 (B 2 Σ+u–X 2 Σ+g) and N2(C 3πu–B 3πg) and the rotational dependences have been studied for J up to 100. A comparison between the band ...

    • Calculation of rotational constants by asymptotic expasion 

      Chakraborty, Bijoy P.; Grieneisen, Hans Peter Henrik; Francke Sandoval, Ricardo Eugenio; Gallas, Jason Alfredo Carlson (1979) [Artigo de periódico]
      An equation has been derived for the calculation of rotational constants, Bv, using an asymptotic expansion for Morse oscillators. Bv values calculated by the new equation have been compared with those calculated numerically ...

    • Experimental test of curvature-driven dynamics in the phase ordering of a two dimensional liquid crystal 

      Sicilia, Alberto; Arenzon, Jeferson Jacob; Dierking, Ingo; Bray, Alan J.; Cugliandolo, Leticia F.; Martínez Perdiguero, Josu; Alonso, Ibon; Pintre, Inmaculada C. (2008) [Artigo de periódico]
      We study electric field driven deracemization in an achiral liquid crystal through the formation and coarsening of chiral domains. It is proposed that deracemization in this system is a curvature-driven process. We test ...

    • Pressure induced water insertion in the defect pyrochlore nh/sub 4/nbwo/sub 6/ 

      Perottoni, Claudio Antonio; Jornada, Joao Alziro Herz da (1997) [Artigo de periódico]
      A sudden and reversible increase of about 5% in the unit cell volume of ammonium tungstoniobate at pressures around 2.5 GPa was observed with pressure transmitting media containing water. This behavior was attributed to ...