Search for dissertations about: "chlorophyll - algae"

Showing result 1 - 5 of 17 swedish dissertations containing the words chlorophyll - algae.

2. 1. Nutrient Stoichiometry in Benthic Food Webs – Interactions Between Algae, Herbivores and Fish

   Author : Antonia Liess; Peter Eklöv; Dag Hessen; Uppsala universitet; []
   Keywords : Ecology; ecologial stoichiometry; periphyton; grazer; benthos; trophic interactions; nutrient; algae; Ekologi;

   Abstract : The aim of this thesis was to identify general structuring mechanisms in benthic food webs within the framework of ecological stoichiometry theory. Ecological stoichiometry is defined as the balance of multiple chemical substances in ecological interactions and explicitly considers the combined dynamics of key elements such as carbon (C), nitrogen (N) and phosphorus (P). READ MORE

4. 2. Diagnostic Methods for Composite Insulators with Biological Growth

   Author : Andreas Dernfalk; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; algae; composite insulators; Hough transform; biological contamination; outdoor insulation; digital image analysis; laser-induced fluorescence LIF ; fungi; diagnostic methods;

   Abstract : Composite insulators have a number of advantages compared to conventional insulators, but the fact that they are more prone to aging is a major drawback. For instance, biological growths, like algae and fungi, have been found to colonize composite insulators, and possibly effecting the insulation performance. READ MORE

5. 3. Biological growth on rendered façades

   Author : Sanne Johansson; Avdelningen för Byggnadsmaterial; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; temperature; render; radiation; photosynthesis; moulds; mosses; mortar; moisture; lichens; Imaging-PAM; humidity; heat capacity; heat; ETICS; algae; biological growth; calorimetry; desiccation tolerance;

   Abstract : Biological organisms have an incredible ability to adapt to almost any environment and the humans activities on earth have created many new habitats for different kinds of organisms. For example can certain organisms grow on rocks and vertical cliffs, and when humans started building houses with mineral based façades, some organisms found that these were new habitats to live on. READ MORE

6. 4. Secondary chlorophyll a luminescence decay kinetics from green algae and higher plants : mechanisms and application

   Author : Lars-Göran Sundblad; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; luminescence; fluorescence; photosynthesis; far red; CO2 accumulation; S-states; QA; reverse coupling; qE; frost hardiness;

   Abstract : Barley protoplasts were shown to be a suitable experimental system for studies on the relative maximum during the decay of luminescence observed in most photosynthetic systems after excitation with far red light and in the presence of O2. The far red induced relative luminescencemaximum was shown to be a result of three coinciding events:*Randomization of the S-states of the water splitting system during illumination with far red light. READ MORE

7. 5. Bio-optics, satellite remote sensing and Baltic Sea ecosystems : Applications for monitoring and management

   Author : Therese Harvey; Susanne Kratzer; Jakob Walve; Petra Philipson; Stiig Markager; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bio-optics; Remote sensing; MERIS; Eutrophication; Baltic Sea; Monitoring; Management; WFD; MSFD; HELCOM; Chlorophyll-a; Secchi depth; Coloured Dissolved Organic Matter; Suspended Particulate Matter; Marine Ecology; marin ekologi;

   Abstract : Earth observation satellites cover large areas with frequent temporal repetition and provide us with new insight into ocean and coastal processes. Ocean colour measurements from satellite remote sensing are linked to the bio-optics, which refers to the light interactions with living organisms and dissolved and suspended constituents in the aquatic environment. READ MORE