Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 296 for “"annihilation"”.
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On self-annihilation: bending the borrowed light
… the mundane. The struggle against personal self-annihilation, and the striving to bridge the ideal and the actual, is the main, recurrent thematic element that characterizes this work.
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Education and Annihilation: The Morrill Act at War.
North Carolina State University Theses History.
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Dark Matter Annihilation and the Observed Positron Excess
… detection, in which products of dark matter annihilations such as neutrinos, gamma rays, and antimatter are detected. Recent results from two indirect detection experiments, PAMELA and Fermi, show a flux of positrons above the expected background signal; this positron excess may point toward …
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A new beamline for positron annihilation lifetime spectroscopy
… silica, where lifetimes associated with o-Ps annihilation in 0{u2082} filled voids were observed. By combining the PALS measurements with TEM images, the residual 0{u2082} pressure inside the voids after isochronal annealing was estimated and compared with expected values from Monte-Carlo …
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A new beamline for positron annihilation lifetime spectroscopy
… silica, where lifetimes associated with o-Ps annihilation in 0{u2082} filled voids were observed. By combining the PALS measurements with TEM images, the residual 0{u2082} pressure inside the voids after isochronal annealing was estimated and compared with expected values from Monte-Carlo …
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The annihilation graphs of commutator posets and lattices
We propose a new, widely generalized context for the study of the zero-divisor/ annihilating-ideal graphs, where the vertices of graphs are not elements/ideals of a commutative ring, but elements of an abstract ordered set (imitating the lattice of ideals), equipped with a binary operation …
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Annihilation And Accumulation: Postcolonial Literatures On Genocide And Capital
<p>The emergence of South-South relations in politics and economics refracts strangely through the literature produced in these postcolonial regions. Two primary worldviews emerge in these texts. The first focuses on the continued presence of imperial powers in the South and their culpability in …
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Pair production of W bosons in electron positron annihilation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1998.
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Electroweak measurements using heavy quarks identified in e⁺⁻ annihilation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1998.
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Electromagnetic extraction and annihilation of antiprotons for spacecraft propulsion
… efficient than traditional proton-antiproton annihilation or "beam-core" engines, and vastly more efficient than conventional chemical and electric propulsion systems. Baseline architectures for various missions are presented.
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Asymmetric Positron Annihilation in Chiral Tartrate and Tartaric Acid Crystals
Positron annihilation lifetime spectroscopy (PALS) has been used to study the interactions of positrons with chiral tartaric acids and tartrates. Differences in lifetimes of and its intensity I2 were compared between large crystals grown from the D- and L- enantiomers of sodium ammonium tartrate …
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Hadron production in electron-positron annihilation below the bottom-threshold
Contains fulltext : mmubn000001_028489322.pdf (Publisher’s version ) (Open Access)
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Positron Annihilation at the Chiral Center of Optically-Active Compounds
Made available in DSpace on 2014-12-13T20:10:19Z (GMT). No. of bitstreams: 1 7804165.pdf: 3642069 bytes, checksum: e2e50000bb7c99214fabe1543b5c4c0e (MD5) Previous issue date: 1977
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