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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) 18 O-tracer investigations on interface diffusion in Y 2 O 3 /YSZ multilayer systems

Steinmüller, Sven Ole, Aydin, Halit, Rein, Alexander, Korte, Carsten January 2010 (has links)
No description available.
12

Slow Li exchange in a Li 3 N single crystal measured by 6,7 Li NMR selective quadrupole satellite inversion

Kuhn, Alexander, Heitjans, Paul January 2010 (has links)
No description available.
13

Novel high free volume polymer, addition polytrimethylsilylnorbornene: diffusion or solubility controlled permeation

Yampolskii, Yuri, Starannikova, Lyudmila, Belov, Nikolay, Galizia, Michele, De Angelis, Maria Grazia, Sarti, Giulio Cesare January 2009 (has links)
No description available.
14

NMR diffusion measurements of complex systems

Stait-Gardner, Tim, Willis, Scott A., Yadav, Nirbhay N., Zheng,, Gang, Price, William S. January 2009 (has links)
The pulsed gradient spin-echo nuclear magnetic resonance experiment is a powerful tool for studying the constitution and structure of complex systems (e.g., polydisperse systems and porous media). In applications to polydisperse systems, it is important to consider the effects of obstruction, exchange, entanglement, and diffusional averaging processes whereas in applications to porous samples, reliable structural information can only be extracted from the time-dependence of the apparent diffusion coefficient when the deleterious effects of spatially and/or temporally inhomogeneous background (magnetic field) gradients can be suppressed. These issues are considered in this review.
15

Dynamic of defects in an iron monolayer on W (110)

Partyka-Jankowska, Ewa, Sepiol, Bogdan, Gröstlinger, Fritz, Vogl, Gero, Korecki, Józef, Ślęzak, Tomasz, Zając, Marcin, Chumakov, Aleksandr January 2009 (has links)
No description available.
16

Investigations of static and dynamic heterogeneities in ultra-thin liquid films via scaled squared displacements of single molecule diffusion

Bauer, Michael, Heidernätsch, Mario, Täuber, Daniela, Schuster, Jörg, Borczyskowski, Christian von, Radons, Günter January 2009 (has links)
No description available.
17

Diffusion in hierarchical pore systems

Naumov, Sergej, Valiullin, Rustem, Kärger, Jörg, Smarsly, Bernd January 2009 (has links)
No description available.
18

Migration mechanism in defect metal hydrides containing superabundant vacancies

Sugimoto, Hidehiko, Fukai, Yuh January 2009 (has links)
No description available.
19

Molecular dynamics of ionic liquids confined in solid silica matrix for lithium batteries

Petit, Dominique, Korb, Jean-Pierre, Levitz, Pierre, LeBideau, Jean, Brevet, D. January 2009 (has links)
We present the first results of the magnetic field dependence of the longitudinal nuclear magnetic relaxation of anion-cation pair of ionic liquids (Li+-ionogels) confined within a silica-like mesoporous matrices designed for lithium batteries. These results are in favour of a very-correlated dynamical motion of the anion-cation pair within the solid and disordered silica matrix.
20

Chemical resolution in T 2 - T 1 correlations

Mitchell, Jonathan, Chandrasekera, Thusara C., Fordham, Edmund J., Crawshaw, John, Staniland, John, Johns, Mike L., Gladden, Lynn F. January 2009 (has links)
Oil and water fractions have been identified in fluid saturated carbonate rock cores using a novel T2-T1-d pulse sequence. The inclusion of the chemical shift dimension d allows T2-T1 plots to be generated independently for the oil and water. The T2-T1-d pulse sequence utilises a “double-shot” T1 measurement that provides free induction decays (FIDs) as a function of both relaxation times for suitably broad line samples. The T2-T1-d data set is acquired in the same experimental time as a conventional T1-T2 measurement (without chemical resolution) of equivalent data density. Here we demonstrate that different behaviour can be observed between the oil and water fractions in water wet and preferentially oil wet cores, and that saturation states can be determined. This technique could provide a quantitative NMR measure of wettability.

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