Sökning: "disturbance dynamics"

Visar resultat 11 - 15 av 87 avhandlingar innehållade orden disturbance dynamics.

  1. 11. Linear and non-linear dynamics of non-autonomous flows

    Författare :J. Simon Kern; Dan S. Henningson; Ardeshir Hanifi; Peter J. Schmid; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Time-dependent flows; linear stability; non-linear dynamics; Floquet analysis; optimally time-dependent modes; Teknisk mekanik; Engineering Mechanics;

    Sammanfattning : Fluid flows subject to time-dependent external forces or boundary conditions are ubiquitous in biology and technical applications. Whether one considers birds flying by flapping their wings or the gust response of wind turbines, the flow is non-autonomous. LÄS MER

  3. 12. Assessment of cerebrospinal fluid system dynamics : novel infusion protocol, mathematical modelling and parameter estimation for hydrocephalus investigations

    Författare :Kennet Andersson; Anders Eklund; Karin Wårdell; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Medicinsk teknik; hydrocefalus; infusionstest; utflödeskonduktans; systemidentifiering; Medical technology; Medicinsk teknik;

    Sammanfattning : Patients with idiopathic normal pressure hydrocephalus (INPH) have a disturbance in the cerebrospinal fluid (CSF) system. The treatment is neurosurgical – a shunt is placed in the CSF system. The infusion test is used to assess CSF system dynamics and to aid in the selection of patients that will benefit from shunt surgery. LÄS MER

  4. 13. Academic librarianship in flux : The dynamics of negotiating professional jurisdiction

    Författare :Pieta Eklund; Elena Maceviciute; Nasrine Olson; Högskolan i Borås; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; academic librarianship; librarians; profession; occupation jurisdiction; Abbott; negotiations; Universitetsbibliotekarier; bibliotekarier; professioner; yrke; jurisdiktioner; Abbott; förhandlingar; Library and Information Science; Biblioteks- och informationsvetenskap;

    Sammanfattning : This study aims to better understand the dynamics of negotiating professional jurisdiction within research from the perspective of academic librarians who develop library services for researchers. This qualitative case study consists of 24 semi-structured interviews, 32 recorded non-participant observations, and seven official university library documents collected at one Swedish university library with three division libraries during 2016. LÄS MER

  5. 14. Macroalgal community dynamics on coral reefs : Implications for management

    Författare :Erik Mörk; Nils Kautsky; Magnus Nyström; Tim R. McClanahan; Stein Fredriksen; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Macroalgae; Coral Reefs; Herbivory; Nutrients; Ecosystem change; Fish; Sea Urchins; East Africa; marin ekotoxikologi; Marine Ecotoxicology;

    Sammanfattning : Although rather inconspicuous on healthy coral reefs, macroalgae form the basis of coral food webs. Today, macroalgae are generally increasing and many reefs undergo transitions from coral to macroalgal dominance resulting from e.g. enhanced nutrient loading or increased fishing. LÄS MER

  7. 15. Sex in Murky Waters : Anthropogenic Disturbance of Sexual Selection in Pipefish

    Författare :Josefin Sundin; Anders Berglund; Gunilla Rosenqvist; Bob Wong; Uppsala universitet; []
    Nyckelord :Mating system; Mate choice; Courtship; Eutrophication; Turbidity; Hypoxia; Ocean acidification; Syngnathidae; Biologi med inriktning mot zooekologi; Biology with specialization in Animal Ecology;

    Sammanfattning : Animals experience variation in their environment because of natural changes. However, due to anthropogenic disturbance, the speed and severity of these changes have recently increased. This thesis investigates how reproductive behaviours may be affected by human induced environmental change. LÄS MER