<span style="mso-bidi-language:HI">Studies on effect of topology on pulp and paper characteristics of <i><span style="mso-bidi-language:HI">Eucalyptus camaldulenosis</span></i> </span>

332-340The seedlings of Eucalyptus camaldulenosis of same genotype were grown at different geographical locations having distinct pre- and post-monsoon ground water levels. It is observed that as the ground water level recedes, balloon like structures known as tyloses develop, which affect the plant anatomy, physico-chemical and pulp and paper making characteristics of E. camaldulenosis. The aging of E. camaldulenosis has marked adverse impact on morphological, physico-chemical composition, pulping and black liquor characteristics along with mechanical strength properties of paper. </span

Two competing species in super-diffusive dynamical regimes

The dynamics of two competing species within the framework of the generalized Lotka-Volterra equations, in the presence of multiplicative α-stable Lévy noise sources and a random time dependent interaction parameter, is studied. The species dynamics is characterized by two different dynamical regimes, exclusion of one species and coexistence of both, depending on the values of the interaction parameter, which obeys a Langevin equation with a periodically fluctuating bistable potential and an additive α-stable Lévy noise. The stochastic resonance phenomenon is analyzed for noise sources asymmetrically distributed. Finally, the effects of statistical dependence between multiplicative noise and additive noise on the dynamics of the two species are studied. Copyright EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2010