Sökning: "Mixed stands"

Visar resultat 16 - 20 av 31 avhandlingar innehållade orden Mixed stands.

  1. 16. Versatile Association Behavior in Mixtures of Oppositely Charged Amphiphiles : From DNA-Like Assembly of Supramolecular Helices to Coacervation in Chiral Surfactant Systems

    Författare :Guanqun Du; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bile salts; Block copolymers; Oppositely charged polymer-surfactant systems; Co-assembly; BS sequestrants; Gemini surfactants; Supramolecular helices; Hexagonal packing; Chirality; Thermoresponsive behavior; Scattering; Tomography; Calorimetry;

    Sammanfattning : As biological surfactants, bile salts (BSs), play important roles in biological processes, i.e., food digestion, but also in BS-related diseases, as well as in applications. LÄS MER

  3. 17. Grazing in Macroalgae Communities of the Baltic Sea

    Författare :Roland Engkvist; Hans Kautsky; Högskolan i Kalmar; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Akvatisk ekologi; Aquatic Ecology;

    Sammanfattning : Fucus vesiculosus and Fucus serratus are the only large, structuring perennial brown macroalgae in the low salinity waters of the Swedish coast of the Baltic Proper. Since the 1970s there are reports of declining Fucus vesiculosus stands from several locations around the Baltic Proper, but also indications of recoveries e.g. LÄS MER

  4. 18. Leaf Area Index of Scandinavian Forests Methods Using in situ and Remotely Sensed Data

    Författare :Helena Eriksson; Institutionen för naturgeografi och ekosystemvetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Geologi; fysisk geografi; Physical geography; geomorphology; Geology; physical geography; leaf aggregation; specific leaf area SLA .; Växtekologi; Plant ecology; Leaf area index LAI ; canopy reflectance models; spectral vegetation indices; remote sensing; pedology; cartography; climatology; Fysisk geografi; geomorfologi; marklära; kartografi; klimatologi;

    Sammanfattning : This thesis deals with methods of obtaining the leaf area index (LAI) from remotely sensed satellite data. Initially, in situ estimation methods were investigated, since the accuracy of the remotely sensed estimates is dependent on the quality of these estimates. LÄS MER

  5. 19. Images from unmanned aircraft systems for surveying aquatic and riparian vegetation

    Författare :Eva Husson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Aquatic and riparian vegetation in lakes, streams, and wetlands has important ecological and regulatory functions and should be monitored to detect ecosystem changes. Field surveys are often tedious and in countries with numerous lakes and streams a nationwide assessment is difficult to achieve. LÄS MER

  7. 20. The Activity Diamond - Modeling an Enhanced Accessibility

    Författare :Per-Olof Hedvall; Bodil Jönsson; Victor Kaptelinin; Certec - Rehabiliteringsteknik och Design; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Activity Diamond; Cultural-historical Activity Theory; Disability; Epiaccessibility; Accessibility; Lived Accessibility; Design; ICF; Social model; Activity Diamond; Cultural-historical Activity Theory; Disability; Epiaccessibility; Accessibility; Lived Accessibility; Design; ICF; Social model;

    Sammanfattning : The purpose of the research presented in this thesis is to enhance the field of accessibility to include a multitude of perspectives. Based on cultural-historical activity theory (CHAT), it analyzes how human, artifactual and natural factors impact an individual’s possibilities to act in concrete situations that are part of a systemic whole. LÄS MER