Search for dissertations about: "molecules"

Showing result 11 - 15 of 3503 swedish dissertations containing the word molecules.

  2. 11. Internal rotation in molecules : a nuclear magnetic resonance relaxation study

    Author : Anders Ericsson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In order to study the internal rotation of methyl-type groups in molecules, the carbon-13 nuclear magnetic resonance (NMR) spin-lattice relaxation times (T1) and nuclear Overhauser enhancement factors (n) are measured for some terpenes (borneol, camphor, isopinocampheol and α-pinene), for octafluorotoluene and for 1-methylnaphtalene. In addition, deuterium NMR T1 data are presented for 1-methylnaphtalene-d10. READ MORE

  4. 12. Shining Light on Molecules : Electron Transfer Processes in Model Systems for Solar Energy Conversion Investigated by Transient Absorption Spectroscopy

    Author : Jens Föhlinger; Leif Hammarström; Davidsson Jan; Benjamin Dietzek; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; photophysics; photoinduced electron transfer; transient absorption spectroscopy; laser spectroscopy; solar energy conversion; p-type DSSCs; Charge separation; recombination; mesoporous NiO;

    Abstract : In the recent years, solar energy conversion has attracted a huge research interest due to the potential application for limiting the greenhouse effect. In many solar cells and solar fuel cells, understanding of charge transfer (CT) and recombination is important for future improvement of the overall efficiency. READ MORE

  5. 13. GENOME2QUNOME : Interfacing Molecules with Nanomaterials

    Author : Pritam Kumar Panda; Rajeev Ahuja; Yogendra Kumar Mishra; Helder Almeida Santos; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Electronic transport; Contact electrification; Nanomaterials; Zinc Oxide; Tetrapods; 2D-materials; Density functional theory; Non-equilibrium Green s function; Molecular docking; Molecular dynamics simulation; Materialvetenskap; Materials Science; Theoretical Physics; Teoretisk fysik; Physics with specialization in Biophysics; Fysik med inriktning mot biofysik;

    Abstract : The advent of technological furtherance in the biomedical sector and the renaissance of interdisciplinary science enable us to comprehend human lifestyle, and diseases at molecular and nanoscale levels. Lacking a shared theoretical foundation and terminological lexicon between various scientific domains might impede efforts to incorporate biological principles into nanoscience. READ MORE

  6. 14. Synchrotron radiation studies of gas phase molecules : from hydrogen to DNA sugars

    Author : Gemma Vall-llosera; Elisabeth Rachlew; Stacey Sorensen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; KTH thesis; synchrotron radiation; gas phase; bio molecules; Atomic and molecular physics; Atom- och molekylfysik;

    Abstract : This thesis summarises experimental results on the molecular spectroscopy of gas phase molecules excited by synchrotron radiation in the VUV and soft X-ray regions. We have used three different detection techniques, photon induced fluorescence spectroscopy, photoionisation mass spectroscopy and near edge X-ray absorption fine structure spectroscopy to study molecular deuterium, hydrogen sulphide, ammonia, methanol, pyridine, pyridazine, pyrimidine, pyrazine, s-triazine, and 2-deoxy-D-ribose, the last one also known as the DNA sugar. READ MORE

  7. 15. Interstellar molecules in the Magellanic clouds

    Author : Arto Heikkilä; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; abundances; interstellar medium: molecules; galaxies: interstellar medium; magellanic clouds; abundances;

    Abstract : .... READ MORE