Sökning: "SINK"

Visar resultat 11 - 15 av 219 avhandlingar innehållade ordet SINK.

1. 11. Sink or source? : uncertainties in large scale model predictions of forest soil organic carbon dynamics

   Författare :Carina Ortiz; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : Soil organic carbon (SOC) is the largest terrestrial carbon pool and small changes in this pool may affect the global carbon balance, especially atmospheric concentration of CO2. Within the context of climate policy, the quantification of these changes is important, as pool changes may affect a country's national greenhouse gas budget. LÄS MER

3. 12. Investigation and modification of NADH re-oxidation in Saccharomyces cerevisiae under micro- and anaerobic conditions

   Författare :Roeland Costenoble; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NADH couplen reduction; mannitol-1-phosphate dehydrogenase; glycerol metabolism; alternative redox sink; redox regulation; yeast; oxygen limitation; delta-gpd double null mutant; glycerol-3-phosphate dehydrogenase;

   Sammanfattning : .... LÄS MER

4. 13. Effects of Habitat Quality on Behavioural Decisions and Population Dynamics in the Siberian Jay

   Författare :Magdalena Nystrand; Jan Ekman; Erik Matthysen; Uppsala universitet; []
   Nyckelord :Biology; Perisoreus infaustus; relatedness; delayed dispersal; predation risk; foraging; trade-off; demography; source-sink dynamics; forest structure; Biologi;

   Sammanfattning : The dynamics of natural populations may be influenced by a variety of factors, ranging from feeding interference and territoriality to the risk of predation and climatic effects. The relative influence of these factors may be contingent upon the quality of the habitat in which individuals reside. LÄS MER

5. 14. Butterfly Diversity and Dispersal in Fragmented Grasslands

   Författare :Erik Öckinger; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Naturvetenskap; Djurekologi; Animal ecology; Ekologi; Ecology; Lepidoptera; Landscape ecology; Insects; Species richness; Fragmentation; Mobility; Natural science; Source-sink dynamics; Metapopulations;

   Sammanfattning : During the last decades, the distribution and abundance of many European species of birds, plants and insects in agricultural landscapes have declined due to agricultural intensification. To be able to mitigate these declines, it is essential to know the relative importance on local and regional ecological processes on population persistence and patterns of species richness. LÄS MER

7. 15. Efficient Coding Techniques for Networks & Channels with Transmission Errors

   Författare :Ming Xiao; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Channels with Errors; Low-Density Generation-Matrix Codes; Sink Bit Error Probability; Continuous Phase Modulation; Maximum-Likelihood Decoding; Cross-Layer Design; Network Coding; Ring Convolutional Codes; Adaptive Codes.; Deterministic Rateless Codes;

   Sammanfattning : This thesis consists of two parts, both of whichinvestigate coding techniques for information transmission throughchannels in the presence of errors. Part I discusses topics ofnetwork coding and rateless codes. Part~II considers channel codesfor continuous phase modulation. These two parts are clearlydifferent, but they are also related. LÄS MER