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 60 for “"Non-catalytic"”.
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Modelling Non-Catalytic Gas-Solid Reactions
… a general reaction and diffusion model for non-catalytic reactions between gases and porous solids, particularly those relevant to the clean use of fossil fuels. Here, the internal pore structure of the solid was characterised by observing the kinetics in a regime limited only by intrinsic …
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The non-catalytic polymerization of ethylene dissolved in naphthalene
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1935.
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Molecular Genetic Analysis of Non-Catalytic Pol IV and V Subunits
… II, and Pol II, IV and V still utilize multiple non-catalytic subunits encoded by the same genes. Genetic analysis of non-catalytic subunits that are highly similar reveals that these subunits are not necessarily redundant. For instance, NRPB9b but not its 97% similar paralog, NRPB9a is required …
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Catalytic and non-catalytic mechanisms involved in Glutathione S-transferase Pi mediated cytoprotection
… functions of GSTP1 which are independent of its catalytic activity. Initial in vivo studies have identified that targeting a Tyr7Phe substitution in the murine Gstp1 gene results in a GSTP1 protein which is devoid of catalytic activity. When challenged with a toxic dose of acetaminophen, these …
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Properties of the non-catalytic nucleotide site of the Ca²⁺-ATPase of sarcoplasmic reticulum
… of evidence have indicated the existence of both catalytic and regulatory nucleotide binding sites on the same polypeptide species. The present study concentrates on the interaction of the ATP analogue, 2'-3'-0-(2,4,6-trinitrocyclohexadienylidine) adenosine 5'-triphosphate, (TNP-ATP), with sites …
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Specific Binding Affinity of the Non-Catalytic Domain of Eukaryotic Like Type IB Topoisomerase of vaccinia Virus
… The C-terminal domain (CTD) alone contains the catalytic activity and specificity. Deletion of the N-terminal domain results in a greatly reduced rate of relaxation and rapid dissociation. Biochemical data suggests that the N-terminal domain (NTD) is important for pre-cleavage binding and …
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Removal of nitrogen containing hydrocarbons from wastewater by catalytic and non-catalytic hydrothermal oxidation, in sub- and supercritical conditions
… experiments (wet air oxidation (WAO) and catalytic wet air oxidation(CWAO)), were conducted in a batch reactor and supercritical water oxidation (SCWO) experiments were conducted in a tubular reactor. The key operating parameters investigated were temperature, pressure, initial organic …
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Towards understanding substrate recruitment by PP1 holophosphatases
… enzyme functions as a holoenzyme, with a core catalytic subunit (PP1c) bound to one or two non-catalytic subunits. These non-catalytic subunits have various proposed functions including inhibiting PP1c, aiding PP1 biogenesis, providing substrate specificity, and localising PP1c. Over 200 …
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Comparison of conventional and catalytic in-situ combustion processes for oil recovery
… achievable by thermal cracking is performed by catalytic processing in the reservoir.in this study, four series of laboratory in-situ combustion experiments were performed ton test the concept of its use to catalytic ally upgrade a medium- heavy Clair oil (19.8 deg API), using a low pressure …
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Measurements on supersonic plasma flow in a diverging channel
… the flow is partially ionized, the effect of catalytic and non-catalytic wall materials on nozzle performance is also investigated.
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Analysis of hydrodynamic phenomena in a fluidized bed for thermochemical hydrogen production
… gas are numerically investigated using a new non-catalytic gas-solid reaction model, proposed in the literature but here updated for the purposes of the present study. The results are illustrated considering two cases of kinetics for the consumption of particles: Volumetric Model and Shrinking …
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Functional Evolution of Solute-Binding Proteins
… enzyme cyclohexadienyl dehydratase (CDT) from a non-catalytic ancestor that belonged to the SBP superfamily. The evolution of binding specificity in the AABP family was explored by reconstruction and functional characterisation of ancestral AABPs that predated the divergence of modern AABP …
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Functional Evolution of Solute-Binding Proteins
… enzyme cyclohexadienyl dehydratase (CDT) from a non-catalytic ancestor that belonged to the SBP superfamily. The evolution of binding specificity in the AABP family was explored by reconstruction and functional characterisation of ancestral AABPs that predated the divergence of modern AABP …
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Chemical Looping for Selective Oxidations
… work on a method for analysing periodic non-catalytic gas-solid reactions, of which chemical looping selective oxidations are a subset. The oxygen chemical potential of Ca2Fe2O5 was exploited to improve the efficiency of the steam-iron process to produce hydrogen. The ability of reduced …
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Amine and Catalyst Stability Studies in the Catalyst-Aided CO2 Capture Process
… by 23% for BEA and 20% for AMP. The effect of catalytic degradation on performance was evaluated by comparing the CO2 cyclic capacities of the catalytic and non-catalytic runs on the f irst and last days of the experiment . The results showed that the cyclic capacity of the catalytic run was …
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Dissection of spatiotemporal intracellular signaling using engineered chemical and genetic tools
… that transmit cellular signals through their catalytic and non-catalytic activities. Although dysregulation of kinases is often implicated in human diseases, studying individual kinases is difficult due to their conserved catalytic domain. By combining genetics with small molecule probe …
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Catalytic Production of Furfural by the Subcritical Hydrothermal Gasification of Flax Straw
… a solid acid catalyst. This study focused on the catalytic subcritical hydrothermal gasification of flax straw. The study was performed using a 600 mL autoclave batch reactor using flax straw with a fixed weight (10 g) in all the experimental runs. Three types of solid acid catalysts were explored …
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Modeling Solvent Extraction of Lignin from Hardwoods
… in the bulk solvent phase. Once applied, catalytic agents affect only the chemistry in bulk solvent phase, inhibiting recombination and intrachain condensation but also accelerating chain-end scission. These rate processes are implemented in population balances to simulate conversion …
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Development and characterization of an impedance-based carbon sensor for the detection of catalyst coking in steam-methane and dry-methane reforming systems
… sensor comprises of a Wheatstone bridge with two catalytic, non-percolating cermet resistive elements printed using an inkjet printer. As carbon begins to grow on the catalytic surface, the electrical conductivity of the catalytic material increases, which results in a change in the continuously …
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