Thesis (M.S.)--Oregon State University, 1970. / Typescript (photocopy). Includes bibliographical references (leaves 37-38).

No description available.

No description available.

No description available.

No description available.

This study gives the details about several experiments done in Eugene Mallove Laboratory for New Energy Research. Three experiments are presented and discussed in detail with different type of microscopes and mass spectrometry techniques. Also inspired by work done by Rolison and O'Grady [1], the other part of this study presents the variation of isotopic abundance after experiments on palladium cathode immersed in a heavy water electrolyte. This original inspiring paper has been published through proceedings of the first edition of International Conference on Cold Fusion held in Washington D.C. in 1989. In other words, both works provides similar evidence of an isotopic variation before and after low energy nuclear experiments. By measuring the variation in isotopic concentration, before and after electrolysis, these measurements provide insight for how the low energy nuclear phenomenon occurs. Scanning electron microscopes are used in the first part to provide high resolution, high magnification images of the electrodes. They show the morphology the topology of the cathode after experiment. An energy dispersive mass spectrometer is used to provide elemental composition of the cathode and provide a second independent measurement of elemental composition of the cathode. The presented isotopic measurements are made with a secondary ion mass spectrometer. [1]: D. Rolison & W. O'Grady - Mass/Charge Anomalies in Pd after electrochemical loading with deuterium - Section 10 in Proceedings: EPRI-NSF Workshop on Anomalous Effects in Deuterided Metals - (October 16-18, 1989) Washington, D.C.

Made available in DSpace on 2014-10-09T12:30:50Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:12Z (GMT). No. of bitstreams: 1 01357.pdf: 2383742 bytes, checksum: 5f65e1beb1963320b7c1bf02e46f66a6 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

Made available in DSpace on 2014-10-09T12:30:50Z (GMT). No. of bitstreams: 0 / Made available in DSpace on 2014-10-09T14:01:12Z (GMT). No. of bitstreams: 1 01357.pdf: 2383742 bytes, checksum: 5f65e1beb1963320b7c1bf02e46f66a6 (MD5) / Dissertacao (Mestrado) / IPEN/D / Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

Thesis advisor: Daniel A. Kirschner / The myelin sheath of the central nervous system contains a network of interlamellar tight junctions known as the radial component. Ablation of claudin-11, a tight junction protein, results in the absence of the radial component and compromises the passive electrical properties of the myelin sheath. Although tight junctions are known to regulate paracellular diffusion, this barrier function has not been directly demonstrated for the radial component, and some evidence suggests that the radial component may also, or instead, mediate adhesion between myelin membranes. To investigate the physical properties of claudin-11 tight junctions, we first compared fresh, unfixed Claudin 11-null and control nerves using X-ray diffraction. In Claudin 11-null tissue, we detected no changes in myelin structure, stability, or membrane interactions, which argues against the notion that myelin tight junctions exhibit significant adhesive properties. To examine myelin permeability in the absence of the radial component, we measured the kinetics of osmotic compaction and recovery in knockout and control myelin. We found that myelin lacking claudin-11 responded more rapidly to osmotic stress, indicating an increase in permeability to water and small osmolytes. To further test this hypothesis, we explored the possibility of measuring the diffusion of water through myelin using neutron diffraction, a technique that had been pioneered in myelin decades ago but was largely unused because of previous limitations in neutron technology. After establishing that present-day neutron instruments were capable of measuring diffusion in myelin, we applied this technique to samples from mice lacking claudin-11. Consistent with our X-ray diffraction studies, we found that H2O-D2O exchange was more rapid in Claudin 11-null mice compared to controls. Thus, our data indicate that the radial component serves primarily as a diffusion barrier and elucidate the mechanism by which tight junctions govern myelin function. / Thesis (PhD) — Boston College, 2016. / Submitted to: Boston College. Graduate School of Arts and Sciences. / Discipline: Biology.

This report describes computer studies which were done to determine the effect on burnup of modifying the heavy water reflector in a 600 MWe CANDU-PHW reactor. It is shown that the burnup penalty increases rapidly as the reflector thickness is reduced. The burnup penalty is significantly lower for mixed reflectors in which some of the heavy water in the outer region of the reflector is replaced by graphite, an organic liquid, or light water, while maintaining the original reflector thickness. / Thesis / Master of Engineering (MEngr)