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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.
441

Solutions of two matrix models for the DIII generator ensemble

Roussel, Harold January 1992 (has links)
No description available.
442

Analog and mixed-signal test methods using on-chip embedded test cores

Hafed, Mohamed M. January 2002 (has links)
No description available.
443

Numerical studies of conductance fluctuations in disordered metals

Houari, Ahmed January 1990 (has links)
No description available.
444

Electrical wavelength tuning in single and multi-wavelength, mode-locked semiconductor fiber ring lasers

Cao, Hong, 1974- January 2004 (has links)
No description available.
445

Modified fermi-eyges electron scattering in tissue equivalent media

Blais, Noël January 1990 (has links)
No description available.
446

Investigation and improvement of a Z-pinch plasma X-ray source

Badaye, Massoud January 1992 (has links)
No description available.
447

Spin-Polarized Scanning Tunneling Microscopy Studies of Topological Magnetism

Repicky, Jacob John 12 August 2022 (has links)
No description available.
448

Mineral Magnetism of Environmental Reference Materials: Iron Oxyhydroxide Nanoparticles

Gonzalez Lucena, Fedora January 2010 (has links)
Iron oxyhydroxides are ubiquitous in surface environments, playing a key role in many biogeochemical processes. Their characterization is made challenging by their nanophase nature. Magnetometry serves as a sensitive non-destructive characterization technique that can elucidate intrinsic physical properties, taking advantage of the superparamagnetic behaviour that nanoparticles may exhibit. In this work, synthetic analogues of common iron oxyhydroxide minerals (ferrihydrite, goethite, lepidocrocite, schwertmannite and akaganéite) are characterized using DC and AC magnetometry (cryogenic, room temperature), along with complementary analyses from Mössbauer spectroscopy (cryogenic, room temperature), powder X-ray diffraction and scanning electron microscopy. It was found that all of the iron oxyhydroxide mineral nanoparticles, including lepidocrocite, schwertmannite and akaganéite were superparamagnetic and therefore magnetically ordered at room temperature. Previous estimates of Néel temperatures for these three minerals are relatively low and are understood as misinterpreted magnetic blocking temperatures. This has important implications in environmental geoscience due to this mineral group’s potential as magnetic remanence carriers. Analysis of the data enabled the extraction of the intrinsic physical parameters of the nanoparticles, including magnetic sizes. The study also showed the possible effect on these parameters of crystal-chemical variations, due to elemental structural incorporation, providing a nanoscale mineralogical characterization of these iron oxyhydroxides. The analysis of the intrinsic parameters showed that all of the iron oxyhydroxide mineral nanoparticles considered here have a common magnetic moment formation mechanism associated with a random spatial distribution of iv uncompensated magnetic spins, and with different degrees of structural disorder and compositional stoichiometry variability, which give rise to relatively large intrinsic magnetization values. The elucidation of the magnetic nanostructure also contributes to the study of the surface region of the nanoparticles, which affects the particles’ reactivity in the environment.
449

Structural and magnetotransport properties of nickelcobalt multilayers

Freitag, James M. (James Mac) January 1996 (has links)
No description available.
450

USING ELECTRON BEAM LITHOGRAPHY TO MAKE ELECTRODES FOR SINGLE MOLECULE ELECTRONICTS

Smith, Neil Ronald 05 August 2005 (has links)
No description available.

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