Sökning: "Nichols"

Visar resultat 6 - 9 av 9 avhandlingar innehållade ordet Nichols.

  1. 6. Feed-forward Control and Dynamic Modelling in Temperature Control of Buildings

    Författare :Mohsen Soleimani-Mohseni; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; building models; state space models; feedback; thermostats; transfer function models; intelligent buildings; ON-OFF controllers; Feed-forward; PIL controllers;

    Sammanfattning : This thesis is mainly about the investigations of different control strategies (and in particular feed-forward) in order to improve indoor climate and/or save energy in buildings. One part of the thesis deals with different ways to obtain dynamic models for climate systems in buildings. LÄS MER

  3. 7. Vissa visioner : tendenser i svensk biografdistribuerad fiktionsfilm 1967-1972

    Författare :Cecilia Mörner; Olle Sjögren; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Cinema Studies; filmvetenskap;

    Sammanfattning : This dissertation focuses on Swedish films from 1967 and 1972; an epoch that is marked by a critical view on society. My purpose is to examine how the social criticism was manifested and communicated to the contemporary audience. LÄS MER

  4. 8. Modelling and control of a line-commutated HVDC transmission system interacting with a VSC STATCOM

    Författare :Paulo Fischer de Toledo; Hans-Peter Nee; Gustaf Ohlsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Keywords : HVDC transmission; LCC – Line-commutated Current-source Converter; STATCOM; VSC – Voltage Source Converter; Space-Vector complex vector ; transfer-function; frequency-domain analysis; Electrical engineering; electronics and photonics; Elektroteknik; elektronik och fotonik;

    Sammanfattning : The interaction of an HVDC converter with the connected power system is of complex nature. An accurate model of the converter is required to study these interactions. The use of analytical small-signal converter models provides useful insight and understanding of the interaction of the HVDC system and the connected system components. LÄS MER

  5. 9. Osteoporosis, balance and nutrition in elderly women in primary care

    Författare :Hans Lundin; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Objective: Some people get skeletal fractures as a result of a trauma which wouldn’t cause a fracture in a healthy individual. These fractures are sometimes referred to as “fragility fractures”. Common sites for fragility fractures are the spine, hip, upper arm, shoulder, distal forearm and pelvis. LÄS MER