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Visar resultat 1 - 5 av 54 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Pressen i provinsen : Från medborgerliga samtal till modern opinionsbildning 1750–1850

   Författare :Patrik Lundell; Broberg Gunnar; Dag Nordmark; Örebro universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; History of philosophy; Sweden; Östergötland; 19th century; 18th century; professionalization; politicisation; conservatism; liberalism; Enlightenment; provinces; public sphere; press history; history of concepts; history of ideas; Filosofins historia; idéhistoria; Press and communication sciences; Journalistik; media; kommunikation; Idé- och lärdomshistoria; History Of Sciences and Ideas; History of philosophy; Sweden; Östergötland; 19th century; 18th century; professionalization; politicisation; conservatism; liberalism; Enlightenment; provinces; public sphere; press history; history of concepts; history of ideas; Press and communication sciences; media; Filosofins historia; idéhistoria; Journalistik; kommunikation;

   Sammanfattning : Att vara kritisk till våra dagars medier är en självklarhet, medan 1800-talets presspionjärer däremot har fått behålla hjältestatusen. I "Pressen i provinsen" tecknas den moderna pressens genombrott dock som en utdragen och långtifrån entydig process. LÄS MER

3. 2. Theoretical Atomic Spectroscopy of Earthbound and Stellar Plasma

   Författare :Jon Grumer; Matematisk fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; atomstruktur; atomära processer; elektronkorrelation; plasmaspektroskopi; magnetfält; hyperfinstruktur; solkoronan; rymdväder; förekomst av grundämnen i stjärnor; datorsimuleringar; Zeemaneffekt; relativistiska effekter; atomic structure; atomic processes; computer simulation; electron correlation; relativistic atomic theory; plasma spectroscopy; Zeeman effect; magnetic fields; hyperfine structure; solar corona; space weather; stellar abundances; Fysicumarkivet A:2016:Grumer;

   Sammanfattning : Motivated by spectroscopic analysis of astrophysical and laboratory plasma, this thesis concerns the fundamental structure and spectral properties of atoms and their ions. The multiconfiguration Dirac-Hartree-Fock (MCDHF) method is used to predict the emission or absorption of radiation, by atomic systems in general, and of heavy and highly charged ions in particular. LÄS MER

4. 3. Physically Based Rendering of Synthetic Objects in Real Environments

   Författare :Joel Kronander; Jonas Unger; Anders Ynnerman; Greg Ward; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : This thesis presents methods for photorealistic rendering of virtual objects so that they can be seamlessly composited into images of the real world. To generate predictable and consistent results, we study physically based methods, which simulate how light propagates in a mathematical model of the augmented scene. LÄS MER

5. 4. Dynamics in Blue Emitting Metal Halide Perovskites for Light Emitting Diodes

   Författare :Max Karlsson; Feng Gao; Tze Chien Sum; Barry P. Rand; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Perovskites; Light-emitting diodes; Stability; Efficiency;

   Sammanfattning : Lighting comprises a large part of the global electricity consumption as of today, and the use of lighting in illumination and displays is only projected to grow. It is therefore imperative to meet this energy demand, not only by means of greener energy production, but also with materials that are both more efficient to fabricate as well as to use. LÄS MER

7. 5. Laboratory and stellar spectroscopy of the complex ions Fe+, Mo+, Th+ and U+

   Författare :Hampus Nilsson; Astronomi - Genomgår omorganisation; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; molybdenum; iron; thorium; uranium.; Atomic and molecular physics; Atom- och molekylärfysik; Astronomy; space research; cosmic chemistry; Astronomi; rymdvetenskap; kosmisk kemi; Condensed matter:electronic structure; electrical; spektroskopi; magnetisk resonans; supraledare; magnetiska och optiska ; egenskaper elektriska; Kondenserade materiens egenskaper:elektronstruktur; spectroscopy; relaxation; magnetic resonance; magnetic and optical properties; supraconductors; astrophysics; radiative lifetimes; oscillator strengths; term analysis; Fourier transform spectroscopy; branching fractions; Fysicumarkivet A:2002:Nilsson;

   Sammanfattning : The new generation of high resolution astronomical instruments such as the Hubble Space Telescope (HST) or the Very Large Telescope (VLT) has renewed the demand for accurate atomic parameters like wavelengths, oscillator strengths and line profiles accompanied by reliable uncertainty estimates. Fourier transform spectroscopy has proven to be a powerful tool when measuring these parameters. LÄS MER