Sökning: "Liquids"

Visar resultat 16 - 20 av 318 avhandlingar innehållade ordet Liquids.

  1. 16. Exploring new protic ionic liquids: From synthesis to fundamental properties

    Författare :Eduardo Maurina Morais; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; thermal analysis; acidity; transport properties; DFT; Protic ionic liquids;

    Sammanfattning : The ionic liquid community frequently leverages the selling point that more than a million new ionic liquids could conceivably be created. Nonetheless, the number of commercially available compounds is orders of magnitude lower. LÄS MER

  3. 17. Grouting of Hard Rock with Gelling Liquids, Field and Laboratory Studies of Silica sol

    Författare :Johan Funehag; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; aperture; penetration length; gelling liquids; field study; silica sol; colloidal silica; Grouting; propagation; hydraulic test; sand column; rheology; transmissivity;

    Sammanfattning : Recent grouting projects in Sweden have concentrated on the grout itself. The only grout normally used in Sweden is a cement-based one. During the past 10 years, the acceptable flow of water into tunnels has been significantly reduced. The current requirements mean that an average fracture aperture of around 0. LÄS MER

  4. 18. Orthoborate Ionic Liquids for Lubricated Interfaces

    Författare :Mamoun Taher; Robin D. Rogers; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chemistry of Interfaces; Gränsytors kemi;

    Sammanfattning : The lifespan and efficiency of various types of machinery is often limited by the performance of its lubricated interfaces, which are formed by two interacting surfaces and a lubricant that separates the surfaces to decrease friction and wear. There is a constant quest for more efficient lubricants capable of lubricating non-ferrous surfaces. LÄS MER

  5. 19. Structural Dynamics of Glass-Forming Liquids

    Författare :Dennis Engberg; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Neutron and light scattering experiments on glass-forming liquids, an oxide network, a polymeric system and a polymeric electrolyte, were performed. The network glass-former B2O3 was investigated from 60 - 1300 K. The experimental results were interpreted using mode coupling theory and the soft potential model. LÄS MER

  7. 20. Local Structure of Hydrogen-Bonded Liquids

    Författare :Matteo Cavalleri; Lars G.M. Pettersson; John Tse; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hydrogen-bond; water; ice; density functional theory; DFT; core-level spectroscopies; x-ray absorption; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : Ordinary yet unique, water is the substance on which life is based. Water seems, at first sight, to be a very simple molecule, consisting of two hydrogen atoms attached to one oxygen. LÄS MER