Sökning: "Range Search"
Visar resultat 21 - 25 av 207 avhandlingar innehållade orden Range Search.
21. In Search of Security After the Collapse of the Soviet Union : Foreign Policy Change in Denmark, Finland and Sweden, 1988-1993
Sammanfattning : The aim of this study is to explain the evolution of foreign policy in Denmark, Finland and Sweden with regard to Western security cooperation between 1988 and 1993. The study sets out to test two theoretical perspectives on the security cooperation policies of these three small states. LÄS MER
22. Search for Neutrinos from Gamma-ray Bursts using the IceCube Neutrino Observatory
Sammanfattning : Gamma ray bursts (GRBs) are short bursts of high energy γ-radiation and are among some of the most energetic phenomena in the universe. GRBs have three distinct emission phases: the prompt phase with high-energy γ-rays, the precursor phase which is the time interval before the prompt phase and is reported to have an additional smaller burst for some GRBs, and the afterglow phase which is the time interval after the prompt phase with observations for electromagnetic radiation across a large wavelength range reported for many GRBs. LÄS MER
23. A Search for Dark Matter Lines with H.E.S.S. II
Sammanfattning : Most of the matter in the universe, ~80% is thought to be dark matter- particles that have small or no interactions with standard model particles. Dark matter is an integral part of the current understanding of cosmology, and leaves signs in the movements of stars and galaxies, as well as the Cosmic Microwave Background. LÄS MER
24. Dark Matter in the Galactic Halo : A Search Using Neutrino Induced Cascades in the DeepCore Extension of IceCube
Sammanfattning : A search for Weakly Interacting Massive Particles (WIMPs) annihilating in the dark matter halo of the Milky Way was performed, using data from the IceCube Neutrino Observatory and its low-energy extension DeepCore. The data were collected during one year between 2011 to 2012 corresponding to 329.1 days of detector livetime. LÄS MER
25. Exploring the Universe Using Neutrinos : A Search for Point Sources in the Southern Hemisphere Using the IceCube Neutrino Observatory
Sammanfattning : Neutrinos are the ideal cosmic messengers, and can be used to explore the most powerful accelerators in the Universe, in particular the mechanisms for producing and accelerating cosmic rays to incredible energies. By studying clustering of neutrino candidate events in the IceCube detector we can discover sites of hadronic acceleration. LÄS MER
