Sökning: "Collapse"

Visar resultat 16 - 20 av 333 avhandlingar innehållade ordet Collapse.

1. 16. Voltage collapse in power systems : the influence of generator current limiters, on-load tap changers and load dynamics

   Författare :Stefan Johansson; Fredrik Sjögren; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; voltage collapse; field current limiter; current-voltage trajectory; armature current limiter; load dunamics; voltage instability;

   Sammanfattning : .... LÄS MER

3. 17. Many-body Problems in the Theory of Stellar Collapse and Neutron Stars

   Författare :Emma Olsson; Bengt Gustafsson; Christopher Pethick; Bengt Friman; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Astronomy; neutron stars; core-collapse supernovae; response functions; Fermi liquids; nuclear matter; neutrino interactions; Astronomi; Astronomy and astrophysics; Astronomi och astrofysik;

   Sammanfattning : When modelling the collapse of massive stars leading to supernova explosions and the cooling of neutron stars, understanding the microphysical processes, such as the interaction of neutrinos within a dense medium are of vital importance. The interaction of neutrinos with nucleons (neutrons and protons) is altered by the presence of the medium, compared to the same process with free nucleons. LÄS MER

4. 18. Late time emission from core-collapse supernovae

   Författare :Cecilia Kozma; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Stjärnor;

   Sammanfattning : .... LÄS MER

5. 19. Observations of young core collapse supernova remnants

   Författare :Anestis Tziamtzis; Lundqvist Peter; Sergey Zharikov; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; supernova remnants; Crab; SN 1987A; Astronomy; Astronomi; Astronomy; astronomi;

   Sammanfattning : Studies of young remnants offer an opportunity to test theoretical models of stellar evolution, explosion models and nucleosynthesis, as well as our understanding of the compact objects in the centre of the exploded stars.The first part of the thesis involves observations of the Crab nebula. LÄS MER

7. 20. Extending the observational reach of core-collapse supernovae for IceCube using high-energy neutrinos

   Författare :Nora Valtonen-Mattila; Erin O'Sullivan; Timothy Linden; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Neutrino physics; Neutrino astrophysics; Supernovae; Core-collapse supernovae; Particle astrophysics; Fysik; Physics;

   Sammanfattning : Neutrino telescopes such as IceCube monitor for low-energy neutrinos O(10 MeV) produced in nuclear processes during core-collapse in supernovae. The detection horizon to the neutrino burst is 50 kpc, the distance to the Magellanic Clouds. LÄS MER