Sökning: "Jonas A. Sellberg"

Hittade 5 avhandlingar innehållade orden Jonas A. Sellberg.

1. 1. X-ray scattering and spectroscopy of supercooled water and ice

   Författare :Jonas A. Sellberg; Anders Nilsson; Lars G. M. Pettersson; Thomas Loerting; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; supercooled water; ice; x-ray scattering; x-ray spectroscopy; free-electron laser; kemisk fysik; Chemical Physics;

   Sammanfattning : This thesis presents experimental studies of water and ice at near-atmospheric pressures using intense x-rays only accessible at synchrotrons and free-electron lasers. In particular, it focuses on the deeply supercooled, metastable state and its implications on ice nucleation. LÄS MER

3. 2. Biological Laboratory X-Ray Microscopy

   Författare :Mikael Kördel; Hans Hertz; Ulrich Vogt; Jonas A. Sellberg; Rajmund Mokso; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; x-ray microscopy; laboratory x-ray microscopy; water window; biological; cell imaging; virus; Biological and Biomedical Physics; Biologisk och biomedicinsk fysik; Optik och fotonik; Optics and Photonics;

   Sammanfattning : Soft x-ray microscopy in the water window (? ≈ 2.3 − 4.3 nm) is a powerful technique for high-resolution biological imaging. The strong natural contrast between carbon-based structures and water allows visualization of hydrated and unstained samples, while providing enough transmission through up to ∼ 10 μm of organic matter. LÄS MER

4. 3. Optical and x-ray studies of ice growth in water

   Författare :Niloofar Esmaeildoost; Jonas Sellberg; Hans Hertz; Thomas Hansen; KTH; []
   Nyckelord :Physics; Fysik;

   Sammanfattning : The key purpose of this thesis is to study the structure of metastable water and its transformation into ice upon deep supercooling using x-ray scattering as well as optical microscopy. In all experiments, micrometer-sized water droplets were evaporatively cooled in vacuum and probed either by x-rays or optical illumination. LÄS MER

5. 4. Den sjunde världsdelen : Västgötar och Västergötland 1646-1771. En identitetshistoria

   Författare :Benny Jacobsson; Erland Sellberg; Bo Lindberg; Jonas Nordin; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; regional identity; national identity; concept of identity; patria; nation; encomium; topography; dissertation; student nation; Västergötland; Uppsala; Åbo; Skara; Jacob Chronander; Algot Scarin; Sven Wilskman; Johan Falck; Sven Hof; Paul Ricoeur; History of science and ideas; Idé- o lärdomshistoria; idéhistoria; History of Ideas;

   Sammanfattning : This thesis considers regional identity in early-modern Sweden, taking its case from the province (landskap) of Västergötland 1646–1771. The aim is to investigate verbal expressions of regional identity. LÄS MER

7. 5. Ödets teater : Ödesföreställningar i Sverige vid 1700-talets början

   Författare :Andreas Hellerstedt; Erland Sellberg; Jonas Nordin; Otfried Czaika; Stockholms universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; Försynen; Ödet; Lyckan; Providentia; Fatum; Fortuna; Ödesföreställningar; idéhistoria; 1700-talet; Stora nordiska kriget; History of science and ideas; Idé- o lärdomshistoria; idéhistoria; History of Ideas;

   Sammanfattning : The purpose of this dissertation is to study the function of the conceptions of Fate in political contexts as well as in views on society, in early 18th century Sweden. The investigation is centered on three main concepts, namely Providence (lat. providentia), Fate (lat. fatum) and Fortune (lat. LÄS MER