Sökning: "torbjörn a"

Visar resultat 1 - 5 av 448 avhandlingar innehållade orden torbjörn a.

1. 1. Design and analysis of a novel low loss homopolar electrodynamic bearing

   Författare :Torbjörn A. Lembke; Chandur Sadarangani; Hannes Bleuler; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; Homopolar bearing; Electrodynamic bearing; Induction bearing; Elektroteknik; Electrical engineering; Elektroteknik;

   Sammanfattning : A novel homopolar electrodynamic bearing, together with a suitable permanent magnet drive, have been developed for high-speed applications where low losses and high reliability are essential and exclude the use of ball bearings, and yet where active magnetic bearings offer a too complex system solution. Considered applications are small turbomolecular vacuum pumps, and maintenance free flywheels for energy storage in remote telecom and satellite systems. LÄS MER

3. 2. Induction bearings

   Författare :Torbjörn A. Lembke; KTH; []
   Nyckelord :;

   Sammanfattning : A self stabilizing homopolar induction bearing withintegrated touch down bearings has been developed forhigh-speed applications like flywheels, small gas turbines andcompact vacuum cleaners.Stability is achieved without any control electronics thanksto stabilizing eddy currents induced by permanent magnets. LÄS MER

4. 3. Ekonomisk styrning för förändring : en studie av ekonomiska styrinitiativ i hälso- och sjukvården

   Författare :Tomas Blomquist; Johann Packendorff; Rolf A. Lundin; Anders Söderholm; Lars Lindkvist; Torbjörn Stjernberg; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Management accounting and control; organisational change; management control initiatives; health care; organising processes; projectification; space; time; actor categories;

   Sammanfattning : Since the end of the 1980’s  Swedish county council managers has been preoccupied with planning and implementing organisational change in order to alleviate the financial problems and to create more efficient production systems. Many of these efforts to change have implied changing the systems for management accounting and control, changes that have been inspired both by market-oriented ideologies and by the governance principles of large corporations in the private sector. LÄS MER

5. 4. Colonised Coasts : Aquaculture and Emergy Flows in the World System: Cases from Sri Lanka and the Philippines

   Författare :Daniel A. Bergquist; Lennart Strömquist; Clas Lindberg; Torbjörn Rydberg; Aida Aragao-Lagergren; Örjan Sjöberg; Uppsala universitet; []
   Nyckelord :Social and economic geography; Aquaculture; Capitalism; Socio-economic effects; Environmental effects; Benefit distribution; Sustainability; Sustainability assessment; Fairness; Development; Interdisciplinary; Transdisciplinary research; Geography; Emergy; World System Theory; General Systems Theory; Sustainable development; Sri Lanka; Philippines; Kulturgeografi;

   Sammanfattning : This thesis conceives aquaculture as a transfer of resources within and between different parts of the world system. It is argued that due to inappropriate human-nature interactions, resources tend to flow from the South to the North, as a process of coastal colonisation. LÄS MER

7. 5. Subjective well-being in old age and its association with biochemical and genetic biomarkers and with physical activity

   Författare :Lovisa A. Olsson; Torbjörn Nilsson; Jan Karlsson; Pär Wändell; Örebro universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Subjective well-being; Physical activity; Biomarker; Cystatin C; COMT; Cognition; Old age; Geriatrik; Geriatrics;

   Sammanfattning : .... LÄS MER