Sökning: "herzberg"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet herzberg.

  1. 1. Writing with an Attitude : Appraisal and student texts in the school subject of Swedish

    Författare :Jenny W. Folkeryd; Caroline Liberg; Åke Viberg; Fröydis Herzberg; Uppsala universitet; []
    Nyckelord :Linguistics; text linguistics; reader text relationship; systemic linguistics; appraisal theory; literacy education; written language; applied linguistics; Lingvistik; Linguistics; lingvistik;

    Sammanfattning : Learning in school is in many respects done through language. However, it has been shown that the language of school assignments is seldom explicitly discussed in school. Writing tasks are furthermore assigned without clear guidelines for how certain lexical choices make one text more powerful than another. LÄS MER

  3. 2. Theoretical Studies on Electronic and Vibrationally Resolved Multi-Photon Absorption and Dichroism

    Författare :Na Lin; Yi Luo; Marcel Nooijen; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Multi-photon absorption and dichroism; Vibronically resolved spectroscopy; Quantum chemistry; Kvantkemi;

    Sammanfattning : This thesis presents time-dependent density functional theory studies on electronic and vibronically resolved linear and nonlinear optical absorption and dichroism spectra of organic molecules. Special attention has been paid to the influence of solvent environment and molecular vibrations on one-, two- and three-photon absorption and one- and two-photon circular dichroism. LÄS MER

  4. 3. Spectroscopic and kinetic studies of atmospheric oxygen emissions

    Författare :Jacek Stegman; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The terrestrial night sky spectrum Is dominated by emission features related to oxygen photochemistry. Photodissociation of molecular oxygen, the second most abundant atmospheric constituent Is the most efficient channel for converting solar electromagnetic radiation into chemical energy. LÄS MER

  5. 4. Photophysical Properties of Organic and Organometallic molecules

    Författare :Oscar Rubio Pons; KTH; []
    Nyckelord :molecule; two-photon absorption; singlet-triplet. spin-orbit; CASSCF; emission; phosphorescence; DFT; B3LYP;

    Sammanfattning : Highly correlated quantum chemical methods have been appliedto study the photophysical properties of substituted benzenes.With the inclusion of spin-orbit coupling, the phosphorescencesof these molecules have been calculated usingMulti-CongurationalSelf- Consistent Field (MCSCF) quadraticresponse theory. LÄS MER

  7. 5. Theoretical Study of Vibronic Spectra of Molecule Systems Generated by Photo- and Electronic Excitations

    Författare :Ce Song; Yi Luo; Ying Zhang; KTH; []
    Nyckelord :Bioteknologi; Biotechnology;

    Sammanfattning : Spectra represent fingerprints of molecules, which contain unique information about their properties. Through analyzing the spectral data, one can reveal the molecules' energy level alignments, identify their species and geometric structures, and explore relevant chemical processes and microscopic mechanisms. LÄS MER