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 17 of 17 for “"degradation characteristics"”.
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Chemical and Degradation Characteristics of Soil Microbial Biomass
… recalcitrant. Bio-refractory proteins surviving degradation were subsequently identified as membrane proteins and enzymes using in-gel tryptic digestion, matrix assisted laser desorption ionization-time of flight-mass spectrometry (MALDI-TOF-MS) and/or electrospray ionization-time of flight-mass …
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Peripheral nerve regeneration through collagen devices with different in vivo degradation characteristics
… improve the quality of regeneration. The optimal characteristics for the tube have yet to be identified, and a collagen device that can be manipulated and optimized to improve functional peripheral nerve recovery is needed. The overall goal of this thesis was to fabricate and characterize a new …
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Digital Watermarking Based Image and Video Quality Evaluation
… which estimates signal quality by assessing the degradation of the embedded watermark. Since the watermark contains a small amount of information compared to the cover signal, performing accurate signal quality evaluation is a challenging task. Meanwhile, the watermarking process causes signal …
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Chemical and physical aspects of wear processes in polymers
… mild steel and oxides present on mild steel. The degradation characteristics of P. V. C. and C1d P. V. C. have been correlated in terms of current mechano-chemical comminution theory and the process causing the wear of P. V. C., C1d P. V. C., P. T. F. E. and P. C. T. F. E. described in relation to …
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Physical and Electrical Properties of Hot -Carrier Degradation of Silicon *Mos Transistors Processed in Deuterium and Hydrogen
… classical concept and theory suggest that the degradation of MOS transistors is caused by interface trap generation resulting from ""hot-carrier injection."" New experiments for the deuterium isotope effect for hot-hole and hot-electron injection have been performed to probe the mechanism for …
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Biogeochemical Alteration of Particulate Pyrogenic Organic Carbon (pyC)
… (<em>py</em>C) to abiotic and biotic means of degradation has led to increased interest in the role of <em>py</em>C as a potential carbon sink, as well as a strategy for sequestering atmospheric CO2 to mitigate excess carbon emissions. Though much research pertaining to the fundamental …
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The Advancements on the Interface of Statistical Computing, Survival Analysis, and Degradation Analysis
In survival analysis and degradation analysis, analyzing complex data often requires advanced computing methods to carry out model estimation and inference. Motivated by computational challenges in survival analysis and a specific dataset in degradation analysis, this dissertation focuses on the …
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Development of an ocular drug release system for cattle
… calves, (2) an in vitro test to determine the degradation characteristics of the device, (3) an in vitro study to obtain the drug release profiles of the insert, and (4) a study to compare the use of rings and a field treatment method using infected cattle;The device remained in the eyes an …
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Synthesis and Characterization of Injectable Star-shaped Poly(Lactide-co-Glycolide-co-Acrylate) Macromers
… the ability to tailor mechanical properties and degradation kinetics based on various applications. Among these synthetic polymers, poly(lactide-co-glycolide) (PLGA) copolymers have been popularly used either as temporary scaffolds for cell transplantation to regenerate tissues or as drug …
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Sorption and degradation of pesticides in biopurification systems
… into the organic matter and enhances their biodegradation. In order to optimize the efficiency of these systems, the fate of pesticides and the contribution of degradation and retention process needs to be well characterized. In the present work, the intention was to unravel sorption and …
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Microfluidic platforms for the investigation of fuel cell catalysts and electrodes
… interplay of electrochemical, transport, and degradation processes that govern the performance and durability of novel fuel cell components, particularly catalysts and electrodes, within operating fuel cells is critical to designing robust, inexpensive configurations that are required for …
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DYNAMIC SURFACES FOR URINARY CATHETERS: THE EFFECT OF POLY (GLYCEROL SEBACATE CITRATE) COMPOSITION ON DEGRADATION, ENCRUSTATION RESISTANCE AND BACTERIAL RESPONSE
… The effects of citric acid concentration on the degradation characteristics, mechanical behaviour, hydrophilicity and encrustation resistance of bulk samples were investigated and the feasibility of coating a silicone catheter material with PGSC using oxygen plasma treatment was assessed. The …
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Pathways of intracellular protein degradation in cultured muscle cells
… contributions of lysosomal and non-lysosomal degradation pathways functioning under varying nutritional states and for different classes of intracellular proteins. Proteolysis in cultured bovine aortic smooth muscle cells was measured as the percentage of ³H-phenylalanine released per hour …
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Carbon dioxide capture by chemical absorption : a solvent comparison study
… to facilitate the computation of mass transfer characteristics of the system for sizing calculations. For each solvent system, many parametric simulations were performed to identify the effect on energy consumption in the system. The overall energy consumption in the CO₂ capture and compression …
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Investigation of the Role of Amide I to Amide II Ratio and Alpha Helix to Beta Sheet Ratio of Faba Bean Seeds in the Determination of Microbial Protein Synthesis and Animal Performance and Metabolism in Ruminant Livestock Systems.
… have been associated with nutrient quality and degradation characteristics. To our knowledge, the effects of steam pressure toasting (SPT) duration on spectral features of Faba bean seeds (FBS) have not been previously evaluated, and the influence of amide I to amide II ratio, and α-helix to …
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Alternating current electroluminescent properties of zinc sulfide powders
… ACEL technology, i.e. it’s short life time and degradation characteristics, defining a mathematical model of its emission degradation is a step towards understanding part of the mechanism of the ACEL process. Due to the various number of parameters involved in the phenomenon of …
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Evaluation of perennial ryegrass cultivars for dairy production under different pasture management
… 1), nutritive value (experiments 1 and 2), rumen degradation (experiment 3), dietary preference (experiment 4) and milk production (experiment 5). Pasture management included growing perennial ryegrass cultivars with and without white clover (Trifolium repens L.) (experiments 1, 2, 3 and 4) and …