Sökning: "Bond"

Visar resultat 41 - 45 av 969 avhandlingar innehållade ordet Bond.

  1. 41. Characterising Halogen Bonding in a Cooperative Model System

    Författare :Stefan Peintner; Mate Erdelyi; Anja Sandström; Uppsala universitet; []
    Nyckelord :Halogen Bond; NMR; peptide; conformation; RDC; Chemistry with specialization in Organic Chemistry; Kemi med inriktning mot organisk kemi;

    Sammanfattning : Non-covalent interactions are the main driving factor for secondary structure formation of biomacromolecules and are of enormous importance for the direction of molecular recognition events, for example those of importance for drug discovery. Profound understanding of these interactions is of vital importance to achieve high affinity and selectivity of a ligand to a chosen target. LÄS MER

  3. 42. Structural behaviour of shotcrete in hard rock tunnels

    Författare :Andreas Sjölander; Anders Ansell; Richard Malm; Fredrik Johansson; Eivind Grøv; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shotcrete; structural behaviour; material models; rock support; bond strength; fibre-reinforcement; Concrete Structures; Betongbyggnad;

    Sammanfattning : Tunnels in hard and jointed rock are normally excavated in an arch shape to enable the rock mass to support its weight. Since the beginning of the 1980's, fibre reinforced shotcrete (FRS) in combination with rock bolts have been the dominating support method for hard rock tunnels. LÄS MER

  4. 43. Ionization Influence on the Dynamics of Simple Organic Molecules

    Författare :Tomoko Akiyama; Carl Caleman; Oscar Grånäs; Olle Björneholm; Maria Hahlin; Uppsala universitet; []
    Nyckelord :Small organic molecule; Density functional theory; bond integrity; Symmetric structure;

    Sammanfattning : This licentiate thesis is devoted to the investigation of how bonding in simple organic molecules are affected by X-ray beam irradiation. The investigation targets molecules with three carbons as their main-chain structure. The stability of the bonds under ionization are simulated using the SIESTA package. LÄS MER

  5. 44. An Infrared Study of Intermolecular Interactions in Gaseous Hydrogen Bonded Molecular Complexes

    Författare :René Wugt Larsen; Lunds universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; intermolecular potential energy surface; Physical chemistry; Fysikalisk kemi; synchrotron radiation; infrared absorption spectroscopy; intermolecular vibration; molecular complex; Intermolecular interactions; hydrogen bond;

    Sammanfattning : Intermolecular interactions are responsible for the deviations of gases from ideality, determine the three- dimensional structure and folding dynamics of biological molecules, and the binding of molecules to surfaces as in heterogeneous catalysis. The hydrogen bond is the most important intermolecular interaction. LÄS MER

  7. 45. Folding and Structure of Azurin - The Influence of a Metal

    Författare :Johan Leckner; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; azurin; metal cofactor; disulfide bond; protein folding; solution structure; protein stability; paramagnetic NMR;

    Sammanfattning : The structural role of the metal in the protein azurin from Pseudomonas aeruginosa has been a long standing question. Azurin belongs to the cupredoxin family and is a 128 residue beta-barrel protein of greek-key topology. LÄS MER