Search for dissertations about: "clamping levels"

Showing result 1 - 5 of 17 swedish dissertations containing the words clamping levels.

  2. 1. Molecular Quadratic Response Properties with Inclusion of Relativity

    Author : Johan Henriksson; Patrick Norman; Juha Vaara; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; relativistic quantum chemistry; molecular physics; clamping levels; four-component Hartree-Fock theory; Kohn-Sham density functional theory; response theory; nonlinear optics; second-harmonic generation; two-photon absorption; excited state properties; optical power limiting; Computational physics; Beräkningsfysik;

    Abstract : This thesis concerns quadratic response properties and their application to properties in Jablonski diagrams such as resonant two-photon absorption and excited state absorption. Our main interest lies in optical power limiting applications, and in this context, molecules containing heavy metal atoms prove superior. READ MORE

  4. 2. Light Control using Organometallic Chromophores

    Author : Johan Henriksson; Patrick Norman; Olav Vahtras; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; organometallic chromophores; two-photon absorption; excited state absorption; excited state dipole moment; four-component formalism; clamping levels; spin-transition; Computational physics; Beräkningsfysik;

    Abstract : The interaction between light and organometallic chromophores has been investigated theoretically in a strive for fast optical filters. The main emphasis is on two-photon absorption and excited state absorption as illustrated in the Jablonski diagram. We stress the need for relativistic calculations and have developed methods to address this issue. READ MORE

  5. 3. Carotid Artery Stenosis : Surgical Aspects

    Author : Björn Kragsterman; Håkan Pärsson; David Bergqvist; Thomas Mätzsch; Uppsala universitet; []
    Keywords : Surgery; carotid endarterectomy; carotid artery stenosis; carotid clamping; cerebral ischaemia; Kirurgi;

    Abstract : Randomised controlled trials (RCT) have demonstrated a net benefit of carotid endarterectomy (CEA) in stroke prevention for patients with severe carotid artery stenosis as compared to best medical treatment. Results in routine clinical practice must not be inferior to those in the RCTs. READ MORE

  6. 4. Development of characterisation methods for the components of the polymer electrolyte fuel cell

    Author : Jari Ihonen; KTH; []
    Keywords : polymer electrolyte membrane fuel cell; contacct resistance; clamping pressure; stainless steel; membrane degradation;

    Abstract : In this work characterisation methods and fuel cell hardwarewere developed for studying the components of the polymerelectrolyte fuel cell (PEFC). Humidifiers and other componentswere tested in order to develop reproducible and reliableexperimental techniques. A set-up for testing larger cells andstacks was developed. READ MORE

  7. 5. The sites and mechanisms of postoperative insulin resistance

    Author : Jonas Nygren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Surgery; Insulin resistance; Glucosemetabolism; Glucose clamping technique; Gastric emptying; Immobilization; Preoperative fasting; ICF-I; Hospital stay; Stableisotopes ISBN 9;

    Abstract : In Sweden with nine million inhabitants, 450,000 operations (outpatients excluded) are performed every year resulting in 2,250,000 treatment days in hospital. Surgical operations are part of the treatment for 44% of all patients admitted to hospital care occupying 24% of all hospital beds. READ MORE