Sökning: " residence time"

Hittade 2 avhandlingar innehållade ordet  residence time.

1. 1. Function and dynamics of woody debris in boreal forest streams

   Författare :Niklas Dahlström; Umeå universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; Boreal forest; CPOM; CWD; forest management; geomorphology; LWD; riparian forest; retention; residence time; streams; Sweden; woody debris; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

   Sammanfattning : The work in this thesis deals with (1) the effects of woody debris on stream channel morphology and retention of organic material, and (2) the dynamics of woody debris and its relation to riparian forest history and composition. The studied stream reaches are situated in mature, productive forests in the boreal zone of Sweden. LÄS MER

3. 2. Effects of high sugar concentrations in production scale bioreactor : a scale-down study of s. cervisiae

   Författare :Stefan George; KTH; []
   Nyckelord :;

   Sammanfattning : Substrate concentration gradients exist in large-scalebioreactors, due to a combination of insufficient mass transferand mixing, and microbial activities. Zones with high substrateconcentration may arise close to a feed point. It is largelyunknown to what extent these gradients influence themicroorganisms and what the microbial response might be. LÄS MER