Sökning: "gas-phase reactions"

Visar resultat 1 - 5 av 79 avhandlingar innehållade orden gas-phase reactions.

  1. 1. Gas-Phase Protein Structure Under the Computational Microscope : Hydration, Titration, and Temperature

    Författare :Erik Marklund; David van der Spoel; Albert Heck; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular dynamics; gas phase; proteins; micelles; proton transfer; Grothuss mechanism; kinetics; Physics; Fysik; Physics with specialization in Biophysics; Fysik med inriktning mot biofysik;

    Sammanfattning : Although the native environment of the vast majority of proteins is a complex aqueous solution, like the interior of a cell, many analysis methods for assessing chemical and physical properties of biomolecules require the sample to be aerosolized; that is, transferred to the gas-phase. An important example is electrospray-ionization mass spectrometry, which can provide a wide range of information about e. LÄS MER

  3. 2. Quantitative Spectroscopy of Gas Phase Reactions at Elevated Temperatures

    Författare :Joachim Walewski; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fluiddynamik; Gaser; plasma; Maskinteknik; vibration and acoustic engineering; vacuum technology; hydraulics; vibrationer; vakuumteknik; statistical inference; Mechanical engineering; polarisation spectroscopy; diamond CVD; quantitative spectroscopy; hydraulik; gas phase kinetics; plasmas; fluid dynamics; Gases; Fysik; akustik; Physics; Fysicumarkivet A:2001:Walewski;

    Sammanfattning : Gas phase reactions at elevated temperatures are versatile tools for material manufacturing and energy conversion. They are of great commercial interest, but they often entail hazardous impacts on the environment. There is consequently a pronounced need for the further develpment of processes utilising these types of reactions. LÄS MER

  4. 3. Laser diagnostics and modeling of the coupling between heterogeneous catalytic and gas-phase oxidation of hydrogen

    Författare :Michael Försth; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; stagnation flow; hydroxyl; planar LIF; surface reactions; gas-phase chemistry; Chemkin; platinum; catalysis; OH; ignition conditions;

    Sammanfattning : .... LÄS MER

  5. 4. Collision- and photon-induced dynamics of complex molecular ions in the gas phase

    Författare :Linda Giacomozzi; Henning Zettergren; Jason Greenwood; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PAHs; Porphyrins; Adenine; Flavins; Biomolecules; Collisions; Experiments; Reactions; Non-Statistical Fragmentation; Molecular Dynamics; Photon-Induced Fragmentation; Luminescence; Photoisomerization; Proton Transfer; fysik; Physics;

    Sammanfattning : In this thesis, I report experiments probing collision- and photon-induced molecular dynamics in the gas phase. Excited molecules formed in such interactions may relax by emitting electrons or photons, isomerization or fragmentation. LÄS MER

  7. 5. Interactions of chiral ions and molecules in gas phase : Towards an understanding of chiral recognition mechanism

    Författare :Oleksii Rebrov; Mats Larsson; Richard Thomas; Vitali Zhaunerchyk; Anne Zehnacker-Rentien; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fysik; Physics;

    Sammanfattning : This thesis comprises the research related to interactions of enantiopure amino acids with chiral and achiral molecules in gas phase. The investigation of the mechanism responsible for chiral discrimination is of the special interest in this work. LÄS MER