Sökning: "carrier recovery"

Visar resultat 16 - 20 av 38 avhandlingar innehållade orden carrier recovery.

  1. 16. Modelling and Simulation of the Fifth-Generation District Heating and Cooling

    Författare :Marwan Abugabbara; Avdelningen för Installations- och klimatiseringslära; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Waste heat recovery; Heat pumps; 5GDHC; Modelica; Ethical risk analyses;

    Sammanfattning : District heating and cooling are efficient systems for distributing heat and cold in urban areas. They are a key solution for planning future urban energy-efficient systems due to their high potential for integrating renewable energy sources. LÄS MER

  3. 17. Dynamic avalanche in Si and 4H-SiC power diodes

    Författare :Martin Domeij; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Sammanfattning : Semiconductor power modules for the control of high currentsand high voltages have important applications in motor drives,traction and power transmission. Dynamic avalanche is of atechnological interest since it may limit the safe operatingarea for bipolar switching devices and for power diodes, whichare important integral parts of a power module. LÄS MER

  4. 18. Wet magnetic concentration for weakly magnetic mineral fines and ultrafines

    Författare :Wang Yanmin; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mineralteknik; Mineral Processing;

    Sammanfattning : The first objective of the thesis was to reveal the characteristic magnetic behaviour of natural weakly magnetic minerals (such as hematite and chromite), and the size limits of the particles recoverable by the existing modem high intensity and high gradient magnetic separators. The second objective was to enhance the particle aggregation andlor the magnetic response for wet magnetic concentration of the ultrafines which escaped from the separators. LÄS MER

  5. 19. Pain induced by propofol - clinical studies on drug composition and adminstration

    Författare :Elisabeth Liljeroth; Malmö Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; intravenous; Medicin människa och djur ; Medicine human and vertebrates ; pain; propofol; injection;

    Sammanfattning : Over the last 25 years a number of new anaesthetic drugs have been introduced on the market to allow for better patient satisfaction and faster recovery after anaesthesia and sedation. Propofol (2,6-di-isopropylphenol), one of our most common iv anaesthetics, is associated with pleasant sleep and rapid recovery with little postoperative nausea. LÄS MER

  7. 20. Distribution of antiviral nucleoside analogues into brain and skin

    Författare :Natalia Borg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : The aim of this thesis was to study physiological and physico-chemical factors influencing the pharmacokinetics and distribution over the blood-brain barrier of antiviral nucleoside analogues in the rat, and to study the distribution to the human skin in vivo of an anti-herpetic nucleoside analogue. Microdialysis was used to sample the free (unbound) extracellular concentration of the nucleoside analogues from the brain tissue, muscle and blood in the rat and from the dermis of healthy human volunteers. LÄS MER