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 1092 for “"Purity"”.
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Weak Purity for Gorenstein Rings
In the language of local algebra, the classical purity of branch locus theorem states that a module finite ring extension of local normal domains $B\to A$ which is unramified in codimension one, with B a regular local ring, is unramified (and in this setting, etale). When the ring B is merely …
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Hydrogenation of High Purity Gallium-Arsenide and Liquid Phase Epitaxy Growth of High Purity Indium-Gallium-Arsenide
… concentration of donors and acceptors in high purity n- and p-type GaAs before and after hydrogenation has been investigated by photo-thermal ionization spectroscopy, low temperature photoluminescence, capacitance-voltage and Hall-effect measurements. The concentration of deep levels in these …
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Hydrogen purity assessment using laser absorption Spectroscopy
Hydrogen purity assessment is a critical concern in energy applications, especially in fields involving hydrogen injection into natural gas pipelines and fuel cell research. This study addresses the limitations of current hydrogen measurement techniques by developing a novel hydrogen spectrometer …
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Fatigue-enhanced creep of high-purity aluminum
Includes bibliographical references.
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Quenching Lattice Vacancies in High Purity Gold
Made available in DSpace on 2015-05-12T17:11:56Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0013506.PDF: 1382647 bytes, checksum: e9775c647293e2abd31e787eb97a6ca9 (MD5) Previous issue date: 1955
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Impulse electrical breakdown of high-purity water
… conducted on the electrical breakdown of high-purity water and water mixtures. The electrical regime of interest has been carefully defined and documented to consist of electrical impulses with approximately microsecond rise time and fall time greater than 65 microseconds, on approximately …
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Development of a liquid argon purity monitoring system
… by reducing the signal-to-noise ratios. A purity monitor is a device that is often used alongside LArTPCs to monitor the LAr purity. It extracts electrons from a photo-cathode via the photoelectric effect and drifts them through LAr to an anode using an electric field. When traversing the …
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Preparation of high purity doped oxides for fundamental studies
Yttria-stabilized zirconia (YSZ) is an important ceramic and is critical in electrochemical applications. Small amounts of transition metal dopants are shown to influence mechanical and electronic properties of YSZ. In this work, a novel method was used to synthesize 0.01, 0.1, 0.5, and 1.0 mol % …
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Inventing purity in the Atlantic sugar world, 1860-1930
This dissertation illuminates how expert labor makes a complex natural substance into a uniform global commodity. Drawing on both published sources and extensive archival research in the continental United States, in Scotland, and in Puerto Rico, it provides new insight into the workings of the …
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Crystallization of organic compounds: studies on crystal morphology and purity
Contains fulltext : mmubn000001_170794601.pdf (Publisher’s version ) (Open Access)
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The Synthesis, Absolute Configuration, and Enantiomeric Purity of Chiral Allenes
Made available in DSpace on 2014-12-13T20:10:29Z (GMT). No. of bitstreams: 1 7913390.pdf: 3033849 bytes, checksum: f43e3c5a0245f56c4d996c38d99c6981 (MD5) Previous issue date: 1978
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Successive Contrast Involving Luminance and Purity Alterations of the Ganzfeld
Made available in DSpace on 2014-12-03T23:51:26Z (GMT). No. of bitstreams: 1 6303357.pdf: 2534323 bytes, checksum: d6666173eab9d925ba6dae63de91ca6e (MD5) Previous issue date: 1962
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Large-Scale Characterization of Quantum Emitters in High-Purity Diamond
Solid state quantum memories, such as color centers in diamond, are a leading platform for the distribution of quantum information. Quantum repeaters will require many qubit registers at every quantum network node, each with long-lived spin states and high-quality single photon emissions. Here, we …
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Twist: Sound Reasoning for Purity and Entanglement in Quantum Programs
… programming patterns. In this work, I formalize purity as a central tool for automating reasoning about entanglement in quantum programs. A pure expression is one whose evaluation is unaffected by the measurement outcomes of qubits that it does not own, implying freedom from entanglement with any …
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Characterisation of imperfections in single crystals of high purity synthetic quartz
… this thesis is a study of imperfections in high purity, low dislocation content synthetic quartz single crystals which are grown on a commercial scale by the General Electric Company. Hydrogen and metal ion impurities in quartz were studied using low temperature transmission Fourier Transform …
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A study of the supercooling behavior of high purity liquid bismuth
<p>"This investigation involves a study of the supercooling behavior of pure bismuth as affected by the melting atmosphere, the amount of superheat, and the intentional addition of metallic and non-metallic foreign materials to the melt. It was found that the amount of oxide on the melt surface is …
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Conscience, Guilt and the Struggle for Purity of Heart in Kierkegaard
For Kierkegaard, “purity of heart” means to will only one thing- the good. He calls the pull towards the good “conscience”. At some point, any person may be forced to come to terms with their conscience when it disrupts their life through restlessness, anxiety or through one of its other …
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