Sökning: "IR Spectroscopy"

Visar resultat 1 - 5 av 134 avhandlingar innehållade orden IR Spectroscopy.

  1. 1. XUV Laser Studies of Rydberg-Valence States in N2 and H+H- Heavy Rydberg States

    Författare :Maria Ofelia Vieitez Hornos; Lars-Erik Berg; G. C. Groenenboom; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; spectroscopy; extreme utlraviolet; laser; diatomic molecules; laser-induced brakdown spectoscopy; Chemical physics; Kemisk fysik;

    Sammanfattning : .... LÄS MER

  2. 2. Infrared spectroscopy : a tool for protein characterization

    Författare :Chenge Li; Andreas Barth; Silvia Maria Doglia; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; biokemi; Biochemistry;

    Sammanfattning : Infrared (IR) spectroscopy, which belongs to vibrational spectroscopy, detects the vibrations of molecules, for example, proteins. The absorption of the peptide group gives rise to 9 characteristic bands in the infrared region, named A, B, I-VII, with a decreasing energy or wavenumber (cm-1). LÄS MER

  3. 3. Spectral Analysis of Neutron Capture Elements in the Laboratory and Stars

    Författare :Martin Lundqvist; Astronomi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; cosmic chemistry; Astronomy; space research; Atom- och molekylärfysik; Atomic and molecular physics; Astronomi; Sm; Hf; Os; Ir; Neutron capture processes; rymdvetenskap; kosmisk kemi; cool stars; Spectroscopy; atomic data;

    Sammanfattning : The pedigree of the elements heavier than iron is a vital question in the history and evolution of our galaxy. The elements up to and including those of the iron group are produced mainly through fusion processes within stars, giving the stars their energy. LÄS MER

  4. 4. Dynamic FT-IR spectroscopy applied to studies on wood polymers

    Författare :Margaretha Åkerholm; KTH; []
    Nyckelord :Cellulose; Cooperation; Dynamic test; Glucomannan; Holocellulose; Spectroscopy; Kraft pulp; Mechanical properties; Orinettion; Picea Abies; Polarised light; Sulfite pulp; Xylan;

    Sammanfattning : .... LÄS MER

  5. 5. Time-Frequency Analysis in Attosecond Spectroscopy

    Författare :Marcus Isinger; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Attosecond; Spectroscopy; Time-Frequency; High-order harmonic generation; Rabitt; Interferometry;

    Sammanfattning : This thesis deals with ultrafast dynamics of electronic processes in rare gas atoms. The processes we explore include photoemission, where we time the emission of electrons moving away from the atomic core following ionization by a photon; and auto-ionization, where the atom spontaneously releases an electron wave-packet following photo-excitation. LÄS MER