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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 13 of 13 for “"Mechanical Abrasion"”.
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MECHANICAL ABRASION AND ELECTROPORATION IN THE TRANSFORMATION OF INTACT PLEUROTUS OSTREATUS HYPHÆ and NUTRIENT-DEPENDANT RESISTANCE TO HYGROMYCIN B
… by the cell wall, were abraded in an attempt to mechanically degrade the cell wall prior to electroporation. An electroporation field strength of 12,500 V/cm for 500 μs to 1.25 ms was found to be optimal based upon mortality effects. A 32 μm carborundum abrasive was initially evaluated but was …
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Evaluations of concrete overlays for bridge deck applications
… substrate surface preparation conditions: Mechanical abrasion and chemical etching.;The results show that FRC had the highest compressive and split tensile strengths, and MMC and MMC-FA had very low chloride permeability values, while LMC exhibited extremely high interface bond strength. …
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Mineral Scale Buildup on Lined Versus Traditional Polyethylene Pipe Materials Subjected to Mine Influenced Waters
… However, PE material is susceptible to abrasion. To combat this problem and offer a single pipe option for a variety of mining applications, Gerodur MPM Kunststoffverarbeitung GmbH and Co. KG.(Gerodur) has developed a novel liner for PE pipes. The liner is made of a rubber-like material …
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The Environmental Discrimination of Barrier Island Sediments, by the S.E.M
… are tentatively proposed:<br/><br/>(a) Mechanical abrasion.<br/>(b) Chemical solution/precipitation.<br/>(c) Secondary mechanical phase.<br/><br/>Discriminant analysis was unable to distinguish between the Five nearshore samples but was able to discriminate between the nearshore samples …
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Progress Toward Durable Icephobic Materials
… experience repeated icing or freeze-thaw cycles, mechanical abrasion, and particulate erosion. The present thesis explores methods of improving the durability of state-of-the-art icephobic materials in order to make them more suitable solutions to ‘the icing problem.’ Ice adhesion was measured …
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Comparative Morphology of Sensilla Styloconica on the Proboscis of North American Nymphalidae and Other Selected Taxa: Systematic and Ecological Considerations.
… adaptation for protection of sensory pegs from mechanical abrasion during feeding, or for anchoring the flexible proboscis tip to the surface. Correlation analysis revealed 9 out of 28 positive correlations in nectar feeders and 5 out of 28 in non-nectar feeders. Results of preliminary cladistic …
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Determination of creep, fatigue and ageing characteristics of non-metallic strength members in optical communication cables
… made in the light of current theories on the mechanical and chemical performance. Comparisons are made between the properties of jointed aramid yarn and virgin yarn material. A comparison of the tensile and creep performances of aramid in laboratory yarn tests and with fully manufactured …
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Manipulating Conjugation in electronic polymers and graphitic materials: chemosensors, precursor routes, and self-assembly
… and selectors, compression into a pellet, and mechanical abrasion between gold electrodes on paper. We demonstrate that sensing responses reflect halogen bonding trends, with some exceptions. The predominant signal transduction mechanism is likely attributed to swelling of the insulating …
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Micro-injection moulded microneedles for drug delivery.
… design were recommended. Plasma treatment and mechanical abrasion were employed to increase the surface energy of the moulded polymer surfaces with the aim of enhancing protein adsorption. Sample surface structures before and after treatment were studied using AFM and surface energies have been …
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Micro-injection moulded microneedles for drug delivery.
… design were recommended. Plasma treatment and mechanical abrasion were employed to increase the surface energy of the moulded polymer surfaces with the aim of enhancing protein adsorption. Sample surface structures before and after treatment were studied using AFM and surface energies have been …
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Development of an internally heated FC-CVD reactor for CNT synthesis
… surface of a CNT mat whilst inducing thermal and mechanical stresses. It was found that under thermal stress CNT mats could release CNT bundles, however, most of the released particulate matter was composed of soot. Mechanical abrasion of the CNT mats induced CNT bundle pull-out from the mat, …
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Wirelessly addressable chemiresistors : carbon nanotube-based chemical sensors and dosimeters
… with specific types of gases and vapors) by mechanical mixing and subsequent compression into a form similar to a conventional pencil "lead." The second step uses mechanical abrasion ("drawing") of these solid composites on the surface of paper to generate functional devices. The use of …