Sökning: "path length distribution"

Visar resultat 21 - 24 av 24 avhandlingar innehållade orden path length distribution.

  1. 21. Numerical and Experimental Investigations of Design Parameters Defining Gas Turbine Nozzle Guide Vane Endwall Heat Transfer

    Författare :Frank G. Rubensdörffer; Torsten Fransson; Albin Bölcs; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbomachinery; secondary flow; endwall heat transfer; linear cascade test facility; CFD; RANS; V2F turbulence model; combustion chamber nozzle guide vane interface; heat shield; cavity; cooling air; Mechanical energy engineering; Mekanisk energiteknik;

    Sammanfattning : The primary requirements for a modern industrial gas turbine consist of a continuous trend of an increasing efficiency combined with very low emissions in a robust, cost-effective manner. To fulfil these tasks a high turbine inlet temperature together with advanced dry low NOX combustion chambers are employed. LÄS MER

  3. 22. Analysis, Detection, and Mitigation of Attacks in Cyber-physical Systems

    Författare :Hanxiao Liu; Lihua Xie; Karl H. Johansson; Daniel Quevedo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Security of cyber-physical systems; detection of cyber-attacks; POMDP; rollout approach; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Cyber-Physical Systems (CPS) offer close integration among computational elements, communication networks, and physical processes. Such systems play an increasingly important role in a large variety of fields, such as manufacturing, health care, environment, transportation, defence, and so on. LÄS MER

  4. 23. Migration of molecules in the brain : focus on the extracellular space and the cerebrospinal fluid

    Författare :Malin Höistad; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Volume transmission; rat; diffusion; striatum; dual-probe microdialysis; delivery; recovery; clearance; uptake; dopamine; metabolism; radiotracer; mannitol; cisterna magna; opioids; peptides; betaendorphin; mu-opioid receptors; mismatch; TH; DBH; immunohistochemistry; fear.;

    Sammanfattning : Three different molecules and three different experimental models were used to study the migration of molecules in the rat brain: a neurotransmitter- dopamine, an extracellular market- mannitol, and a neuropeptide beta-endorphin. Two models in vivo were used to study the diffusion and migration of molecules: dual-probe rnicrodialysis in the striatum, and direct intrastriatal microinjections followed by cerebrospinal fluid sampling from the cisterna magna. LÄS MER

  5. 24. Äldre personers sista tid i livet. Livskvalitet, vård, omsorg och närståendes situation

    Författare :Magdalena Andersson; Institutionen för hälsovetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Gerontologi; Palliative care; Public care; Experience; Quality of life; Next of kin; Qualitative research; Quantitative research; Gerontology; Frail elderly; End-of-life;

    Sammanfattning : The aim of this thesis was to investigate old people's care and quality of life during the last period of life, but also to investigate their own and next-of-kin's experience of this phase. The thesis is based on four studies using separate samples. LÄS MER