Search for dissertations about: "vacuum"

Showing result 1 - 5 of 414 swedish dissertations containing the word vacuum.

  1. 1. Vacuum insulation in buildings Means to prolong service life

    University dissertation from Stockholm : KTH

    Author : Thomas I. Thorsell; KTH.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vacuum insulation; thermal bridge; serpentine edge; coated film; TECHNOLOGY Civil engineering and architecture Building engineering; TEKNIKVETENSKAP Samhällsbyggnadsteknik och arkitektur Byggnadsteknik;

    Abstract : Vacuum insulation panels, VIPs, constitute a new insulation material, 6 to 8 times better than traditional insulation materials, which utilizes the positive influence vacuum has on the thermal properties of certain materials. A VIP is a composite with a flat core enclosed by an envelope preventing the core to fill with gas. READ MORE

  2. 2. Parametric interactions with signals and the vacuum

    University dissertation from Stockholm : KTH

    Author : Michael Roger Andre Simoen; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; vacuum; circuit-QED; interferometer; SQUID; dynamical Casimir effect; multimode resonator; pumpistor; mode conversion; superconducting circuits; parametric amplification;

    Abstract : In this thesis I present different experiments on superconducting circuits exploring parametric interactions with external signals and the vacuum in the microwave regime. These parametric processes are the result of the periodic modulation of a property of a system which results in different interactions. READ MORE

  3. 3. Birth by vacuum extraction

    University dissertation from Stockholm : Karolinska Institutet, Dept of Women's and Children's Health

    Author : Mia Ahlberg; Karolinska Institutet.; Karolinska Institutet.; [2015]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Background: In Sweden, vacuum extraction (VE) is used in almost every tenth woman to facilitate vaginal birth. VE is an important obstetric instrument that is used when shortening of the second stage of labor is necessary. VE has been associated with increased neonatal morbidity such as extracranial and cranial injuries. READ MORE

  4. 4. QED and collective effects in vacuum and plasmas

    University dissertation from Umeå : Umeå universitet. Institutionen för fysik

    Author : Joakim Lundin; Umeå universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; QED; quantum electrodynamics; quantum plasmas; quantum vacuum; NATURAL SCIENCES Physics Geocosmophysics and plasma physics Plasma physics; NATURVETENSKAP Fysik Geokosmofysik och plasmafysik Plasmafysik; fysik; Physics;

    Abstract : The theory of quantum electrodynamics (QED) was born out of an attempt to merge Einsteins theory of special relativity and quantum mechanics. Einsteins energy/mass equivalence together with Heisenberg's uncertainty principle allows for particle pairs to be spontaneously created and annihilated in vacuum. READ MORE

  5. 5. Vacuum infusion of polymer composites

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Magnus Andersson; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Abstract : The current trend towards an increased use of vacuum infusion for manufacturing of high performance fibre reinforced polymer composites has stressed the necessity of an advanced modelling of the process. Until recent years development in this area has mainly been based on trial and error and the behaviour of the method is therefore not fully understood. READ MORE