Sökning: "Stable stratification"

Visar resultat 11 - 15 av 49 avhandlingar innehållade orden Stable stratification.

  1. 11. Hydrodynamics of very shallow lakes - A study in Lake Krankesjön, Sweden

    Författare :Charlotta Borell Lövstedt; Avdelningen för Teknisk vattenresurslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; alternative stable states; field measurements; reed; resuspension; wave damping; waves; differential heating; vegetation; convective currents;

    Sammanfattning : Shallow lakes have great ecological and recreational values. They are also largely affected by humans, mainly through eutrophication, and great efforts are therefore being put into the understanding of these ecosystems. The knowledge is however not complete, and more research is needed to manage these lakes in a sustainable way. LÄS MER

  3. 12. Turbulence modelling applied to the atmospheric boundary layer

    Författare :Werner Lazeroms; Arne Johansson; Geert Brethouwer; Evgeni Fedorovich; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; turbulence; RANS models; explicit algebraic Reynolds-stress models; buoyancy; stable stratification; thermal convection; atmospheric boundary layer;

    Sammanfattning : Turbulent flows affected by buoyancy lie at the basis of many applications, both within engineering and the atmospheric sciences. A prominent example of such an application is the atmospheric boundary layer, the lowest layer of the atmosphere, in which many physical processes are heavily influenced by both stably stratified and convective turbulent transport. LÄS MER

  4. 13. Infections in patients with haematological malignancies

    Författare :Honar Cherif; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Haematological malignancies; febrile neutropenia; bacteraemia; Candida; oral antibiotic; risk stratification; FUO; cefepime; splenectomy; pneumococcal vaccine;

    Sammanfattning : Infectious complications are an important cause of morbidity and mortality in patients with hematological diseases, especially during chemotherapy induced neutropenia. This study was undertaken with the ultimate goal to improve the clinical management of infections in patients with hematological diseases. LÄS MER

  5. 14. Diabetes mellitus in patients with coronary artery disease : cardiovascular risk assessment and impact of available treatments

    Författare :Matteo Anselmino; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Coronary artery disease; diabetes; acute coronary syndromes; guidelines; prevention; evidence-based medications; revascularisation; insulin; oral glucose lowering drugs; risk stratification; artificial neural network;

    Sammanfattning : A majority of patients with coronary artery disease have abnormal glucose regulation and as many as 30% overt diabetes mellitus. Despite considerable improvements in the management of cardiovascular diseases, patients with diabetes have not benefited to the same extent as those without this disease. LÄS MER

  7. 15. Mean Wind and Turbulence Conditions in the Boundary Layer above Forests

    Författare :Johan Arnqvist; Hans Bergström; Anna Rutgersson; Stefan Söderberg; Søren Larsen; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Wind power; Forest; Turbulence; Waves; Spectra; Wind model; Atmospheric stability; Vindkraft; Skog; Turbulens; Vågor; Spektra; Modell; Atmosfärisk stabilitet;

    Sammanfattning : As wind turbines have grown, new installation areas become possible. Placing wind turbines in forested landscapes introduce uncertainties to the wind resource estimation. LÄS MER