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 87 for “"vitreous"”.
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A study of vitreous-bonded abrasive materials.
… and workpiece composition on the performance of vitreous-bonded alumina grinding wheels. The effect of bond composition considered in this work can equally be applied to grinding wheels which use silicon carbide (carborundum) as the abrasive medium. The bonds considered in this study are …
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The wetting of alumina by vitreous abrasive wheel bonds
Thesis: M.S., Massachusetts Institute of Technology, Department of Metallurgy, 1959
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Designing an instrument for cutting and removing vitreous membranes from human eyes.
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1974
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TLM models of deformation and their application to vitreous china ware during firing
… the viscoelastic deformation of a range of vitreous china testpieces during the firing process. The model constitutes a novel application of the transmission line modelling technique to viscoelastic deformation. The applicability of the model to the sanitary ware industry is addressed.
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The effect of neutron irradiation on the density of low-energy excitations in vitreous silica
… velocity have been made on a single piece of vitreous silica. These measurements were repeated after fast neutron irradiation of the material. It was found that the irradiation produced changes of the same relative magnitude in the low-temperature excess specific heat C , the thermal …
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Deoxidation studies : The interaction of vitreous silica with molten aluminium and systems of aluminium, manganese, iron and silicon.
… for the reaction between liquid aluminium and vitreous silica to be calculated as a function of temperature. These determinations show that the aluminium reduction of the silica is almost entirely controlled and maintained by the transport of the metallic species through the porous matrix of a …
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The Transformation of Human Retinal Pigment Epithelial Cells
… retina, gain access and proliferate in the vitreous during PVR. RPE cells in the vitreous undergo epithelial-mesenchymal transformation (EMT) and participate in the formation of contractile epiretinal membrane.</p> <p>In vitro, human RPE cells in the presence of vitreous undergo a similar …
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The Tumor Microenvironment Regulates Retinoblastoma Cell Survival
… continuing challenges in the management of Rb. Vitreous seeds constitute the greatest challenge in treatment of Rb. The unique location of these seeds within the vitreous makes them difficult to treat. Viable seeds showed reduced proliferative capacity and metabolism. making the majority …
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The Distribution of opiates, cocaine and their metabolites in skeletal muscle tissue and vitreous humour as an aid to post-mortem toxicological interpretation.
… and that lack esterase activity, e.g. muscle and vitreous humour (VH), have the potential to provide more reliable post-mortem toxicological specimens. In the absence of a blood sample the toxicologist may have to rely on such tissues yet few studies have been undertaken to examine the …
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Studio del comportamento meccanico di smalti porcellanati per substrati metallici
… metallic components based on a special ceramic-vitreous matrix in which specific additives are randomly dispersed. The ceramic-vitreous matrix is made by a mixture of various raw materials and elements and in particular it is based on boron-silicate glass added with metal oxides(1) of titanium, …
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The development and validation of an ABL835 FLEX Blood Gas Analyser method for the quantitation of glucose, lactate, and electrolytes in post-mortem vitreous humour
… status of an individual at the time of death. Vitreous humour (VH) has an anatomically isolated location within the body, making it less prone to the effects of putrefaction and autolysis after death. As such, VH has frequently been described as the specimen of choice in biochemical forensic …
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On Complications to Cataract Surgery
… – and to analyze inflammatory mediators in the vitreous of phakic (no previous cataract surgery) and pseudophakic (previous cataract surgery with IOL) eyes. Methods: Paper I is a multicenter case-control study evaluating the incidence and outcome of RD in eyes experiencing a perioperative …
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Carrier transport in undoped and doped films of amorphous arsenic triselenide
… by the introduction of impurities.<br/><br/>In vitreous films of arsenic triselenide, both the dark d.c. conductivity and hole drift mobility have been studied as a function of temperature and applied electric field. Measurements of the d.c. conductivity have been extended to lower temperatures …
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Biomaterials for protection and repair of the central nervous system
… glycol) sols were evaluated as potential vitreous substitutes. Finally, a business plan outlines the strategy towards clinical trials for a hydrogel vitreous substitute.
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