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 19 of 19 for “"phase methods"”.
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Hilbert phase methods for glottal activity detection
… pi discontinuities found in the wrapped Hilbert phase of the bandpass-filtered analytic DEGG signal provide accurate candidate locations of glottal closure instances (GCIs). Pruning these GCI candidates with an automatically determined amplitude threshold, found by iteratively removing from the …
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Novel Switchable Stationary Phase Methods For Supercritical Fluid Chromatography
… system employing a modified water stationary phase was investigated for the analysis of organic bases. The method uses a stainless steel capillary column coated with water containing NH4OH, which was also used to hydrate the system. In this way, the pH of the water stationary phase can be …
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Short-term and Long-term Exposure to Air pollution and Stroke risk
… and can partly be overcome by employing two-phase methods. The general idea with such methods is to incorporate study subjects with partly missing data into the analysis. The main aims in this work were to investigate if air pollution increase stroke risk in Scania (Sweden), where pollution …
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Contribución al estudio teórico de la influencia del disolvente sobre transiciones electrónicas y estados excitados en disolución empleando el método ASEP/MD
… photochemical properties of systems in condesed phase. Methods to calculate free energy differences related with electronic transitions and crossing points between potential energy surfaces in condensed phase were developed.
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Solid Phase Synthesis of M-Phenylene Ethynylene Oligomer Heterosequences
… a tedious process. To address this, two methods for the solid-phase synthesis of mPE oligomers (including heterosequences) have been developed. The first strategy employs a silyl-acetylene linker attached to ArgoGel(TM) solid support, and uses palladium-catalyzed cross-coupling reactions …
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Synthesis and cation binding properties of bis-bridged calix[6]arenes
… were studied in solid, solution, and gas phase. Methods of testing include: NMR titrations, liquid-liquid extractions, x-ray crystallography, and electrospray ionization-MS. A dialkylated calix[6]arene was used as the principle starting material which predisposed the four remaining …
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Modelling and Measurements on a Condensing Counter-Flow Heat Exchanger
… integration over the desuperheating, mixed phase and subcooled regions for the R12 working fluid, the water always being in the liquid phase. Methods of estimating the inlet and exit fluid conditions from the available experimental data have been developed for application to the model. …
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The utility of a real-time PCR to detect Leptospira in a routine diagnostic setting
… of specific antibodies present in the immune phase of the disease. The serological methods are hindered by the inability to distinguish past from current infection and utility limited to only the immune phase of the disease. Due to lack of sensitivity and specificity in serological methods, …
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A study on the effect of HIV infection on the duration of the stabilization phase of children with severe acute malnutrition at the University Teaching Hospital, department of paediatrics and child health, Lusaka, Zambia
… Infection on the Duration of the Stabilization Phase in Children with Severe Acute Malnutrition at the University Teaching Hospital, Lusaka, Zambia. Background: Severe Acute Malnutrition (SAM) is a major cause of under 5 mortality in developing countries. The prevalence of HIV infection in …
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A study on the effect of HIV infection on the duration of the stabilization phase of children with severe acute malnutrition at the University Teaching Hospital, department of paediatrics and child health, Lusaka, Zambia
… Infection on the Duration of the Stabilization Phase in Children with Severe Acute Malnutrition at the University Teaching Hospital, Lusaka, Zambia. Background: Severe Acute Malnutrition (SAM) is a major cause of under 5 mortality in developing countries. The prevalence of HIV infection in …
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Controlled Attachment of Nanoparticles to Layered Oxides
… were prepared. Both aqueous method and two-phase method were applied to prepare gold NPs onto oxide nanosheets, nanoscrolls and other nanocrystals.</p> <p>The combination of H<sub>4</sub>Nb<sub>6</sub>O<sub>17</sub> nanoscrolls and cobalt NPs generate a novel method to fabricate nanopeapod …
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The growth and characterisation of supported metal catalysts prepared by novel chemical vapour deposition methods
… part was also dedicated to compare liquid phasemethods with thermal and combustion chemical vapour depositionwith focus on the liquid phase methods in general and depositionprecipitation in particular. The effects of variant reaction conditions,like pH of precipitation, effects of support, …
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Analysis in Fractional Calculus and Asymptotics Related to Zeta Functions
… between the integration by parts and stationary phase methods. One chapter below solves this problem for a particular integral which arises in the analysis of zeta functions.
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Economic evaluation of models of prevention of mother-to-child transmission of HIV intervention for large scale implementation
… mother-infant pairs in the vulnerable postpartum phase. Methods The aim was to establish economic evidence for scaling-up approaches and models of care for PMTCT particularly during the postpartum period in Southern Africa. The economic data were collected during three studies, Safe Generations …
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JOINING OF CERAMIC COMPOSITES AND ADVANCED CERAMICS
… using various active fillers, transient eutectic phase methods such as nano-infiltration and transient eutectic-phase (NITE), laser joining, selected area chemical vapor deposition , glass-ceramic joining , solid state displacement reactions, preceramic polymer routes, reaction forming, brazing. …
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STUDY OF COVALENT AND NON COVALENT INTERACTIONS OF BIOPOLYMER BY MASS SPECTROMETRY
ESI-MS screening methods directly detect ligand-target non covalent complexes in the gas phase and allow inference of affinity (and specificity) of the ligand-target interaction in solution [1, 2]. The identity of different complexes can be directly assessed as the mass of each molecule works as …
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Design, Synthesis and Pharmacological Characterization of Novel Calcitonin Gene-Related Peptide Receptor Antagonists
… antagonists were synthesized using rapid solid phase methods employing in situ neutralization, purified by reversed phase-high performance liquid chromatography, characterized by amino acid analysis and electrospray ionization mass spectrometry and pharmacologically characterized using the mouse …
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Development and Implementation of Theoretical Methods for the Calculation of EPR Parameters in Periodic Simulations
… of EPR parameters was feasible only in gasphase simulations, in which the molecule under examination is surrounded by vacuum. However, many interesting applications which would potentially benefit from a theoretical EPR study are found in the solid phase, in which the spin centers are fully …