The effects of Naþ, Kþ, Caþþ and Mgþþ cations on the sol–gel transitions of high acyl (HA) gellan dispersions were investigated. Gelling temperatures of 1% HA gellan dispersions containing selected cations (monovalent cations, 10–200 mM; divalent cations, 2–80 mM) were determined using dynamic rheological analysis. Gelling temperatures increased with cation concentrations. Divalent cations exhi...

We specify the black box behavior of data ow components by characterizing the relation between the input and the output histories We distinguish between three main classes of such speci cations namely time independent speci cations weakly time dependent speci cations and strongly time dependent speci cations Data ow components are semantically modeled by sets of timed stream processing function...