Search for dissertations about: "opacity"

Showing result 11 - 15 of 35 swedish dissertations containing the word opacity.

  2. 11. The Advanced Spectral Leakage (ASL) scheme for simulations of merging neutron stars

    Author : Davide Gizzi; Stephan Rosswog; Evan O'Connor; Albino Perego; Carla Fröhlich; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; hydrodynamics; radiative transfer; neutrinos; stars: neutron; supernovae: general; Astronomy; astronomi;

    Abstract : The detection of a blue macronova following the event GW170817 has emphasized the role that neutrinos play in merging neutron stars. In particular, neutrinos are able to drive mass ejection, the so-called neutrino-driven winds, and change the neutron richness of the matter by absorption. READ MORE

  4. 12. Language Based Covert Channel Avoidance

    Author : Daniel Hedin; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Common protection mechanisms fail to provide end-to-end security; programs with legitimate access to secret information are not prevented from leaking this to the world by accident or malice. Protecting the access to information is not enough to solve this problem. We have to ensure that the program uses the information in a secure way. READ MORE

  5. 13. Guidance and Visualization for Brain Tumor Surgery

    Author : Filipe Miguel Maria Marreiros; Örjan Smedby; Sandro Rossitti; Karin Wårdel; Anders Ynnerman; Ole Jacob Elle; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Image guidance and visualization play an important role in modern surgery to help surgeons perform their surgical procedures. Here, the focus is on neurosurgery applications, in particular brain tumor surgery where a craniotomy (opening of the skull) is performed to access directly the brain region to be treated. READ MORE

  6. 14. Spectroscopic study of titanium monohydride and storage ring experiments

    Author : Mathias Danielsson; Ulf Sassenberg; Mats Larsson; Peder Royen; Olli Launila; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TiH; TiD; transition metal hydride; dissociative recombination; Chemical physics; Kemisk fysik; kemisk fysik; Chemical Physics;

    Abstract : This thesis describes two projects, spectroscopy of the astrophysically relevant molecule TiH and its isotopologue TiD, and the dissociative recombination (DR) reaction of astrophysically and atmospherically relevant molecules. Emphasis in the thesis is on the first project. READ MORE

  7. 15. Recovery and reuse of TiO2 and other pigments from paint waste

    Author : Mikael Karlsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Titanium dioxide; Paint Waste; Recovery; Pyrolysis;

    Abstract : Titanium dioxide (TiO2) has numerous applications in our society, most notably as a white pigment in products such as paint, paper and plastic. Since 2010 there has been a sharp increase in the demand for and price of TiO2. As a result new and innovative ways of TiO2 production are needed. READ MORE