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 28 for “"Fitting results"”.
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Ensemble and single molecules fluorescence studies of polymers
… an additional independent Gaussian component and fitting results from single PFO spectrum. While emission spectrum of single PFO molecule shows a good fitting result to the model, the other two bulk PFO films display needs to introduce an additional term for better fit. This additional independent …
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Modeling of gallium nitride molecular beam epitaxy growth
… model parameters which are unknown were found by fitting results from simulation to experimental values. (Abstract shortened by UMI.).
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Understanding the origin of the recovery of superconductivity in halogenated YBCO single crystal : atomic structure study
… (non-iodinated) YBCO single crystals. Our XAFS results at the Br K (brominated) and I L_3 -edges (iodinated) reveal that bromine and iodine do not enter the perfect YBCO lattice. However, the XAFS fitting results at the Br K and I L_3-edges reveal that Br and I do occupy the Cu(l) sites of the …
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Detecting episodes of star formation using Bayesian model selection.
… of the input parameter distributions before fitting results and Bayes factors for multiple scenarios of nested models. In addition, we investigate the role that prior specification has in the derivation of physical parameters. These results are then compared to Bayes factors calculated using …
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Drifting -Dipole Noise Model of Nanometer MOSFETs for Radio Frequency Integrated Circuit Design
… as well as for integrated circuits. Excellent fitting results are achieved for the measured noise parameters of single 120-nm MOSFETs. For circuit validation, two high-performance low-noise amplifiers (LNA) have been demonstrated. The 3.1--10.6 GHz Ultra Wideband LNA shows very low noise …
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Porcine rotavirus adsorption to 24 salad vegetables and sanitization by free chlorine
… surfaces. Partial least square model fitting results suggest that alkanes, ketones, fatty acids, alcohols, contact angle and surface roughness together can explain 60% of the variation in viral adsorption. The results suggest that various fresh produce surface properties need to be …
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Pluto's atmosphere from the May 22, 2011 stellar occultation
… paper reports the observations and atmospheric fitting results from the May 22, 2011 stellar occultation by Pluto. Of the nine sites across the United States that attempted to observe the event, three obtained light curves at the predicted midtime without being clouded out. Simultaneous fitting …
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A combined EMR and DFT study of radiation-induced defects in sucrose and glucose 1-phosphate
… dosimetry. Next to the actual research results, which will be discussed below, the dissertation contains several, quite extensive chapters of a more general nature. The research strategy employed mainly comprises electron-magnetic-resonance (EMR) measurements (EPR, ENDOR, HYSCORE, …) and …
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An Assessment of in-Service Stress Relaxation of a Work-Hardened Aluminum-Magnesium Alloy
… and the method to analyze the experimental results is also discussed. Several constitutive models are applied to fit the experimental results, such as the mechanical threshold stress (MTS) model, Hart's model and a modified Hart's model. The fitting results show that only the Modified Hart's …
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A Class of Mixture of Experts Models for General Insurance Ratemaking and Reserving
… expert function. Apart from showing excellent fitting results, we can interpret the fitted model in an insurance perspective and visualize the relationship between policyholders' information and their risk level. We further demonstrate how the fitted model may be useful for insurance …
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Drifting-dipole noise model of nanometer MOSFETs for radio frequency integrated circuit design
… as well as for integrated circuits. Excellent fitting results are achieved for the measured noise parameters of single 120-nm MOSFETs. For circuit validation, two high-performance low-noise amplifiers (LNA) have been demonstrated. The 3.110.6 GHz Ultra Wideband LNA shows very low noise figures …
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Thermal rheological analysis of cure process of epoxy prepreg
… between 110 and 220 oC, at 10 oC intervals. The results show that the complete cure reaction could be achieved at oC. The isothermal cure process was simulated with the four-parameter autocatalytic model. Except in the late stage of cure reaction, the model agrees well with the experimental data, …
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Integrated Experimental Characterization of the Lower Huron Shale in the Central Appalachian Basin
… in this study. According to the experimental results, matrix permeability is relatively high for a shale gas formation, suggesting great production potential of shale gas resources in this region. Additionally, four shale samples with varying thermal maturity were characterized by the …
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Characterization of short-pulse laser-produced fast electrons by 3D hybrid particle-in-cell modeling of angularly resolved bremsstrahlung
… by varying all three electron parameters. Fitting results based on chi-squared analyses show good agreements for both target types when the electron slope temperature of 0.8 MeV, the divergence angle of 70 degrees, and the electron beam energy of 1.3 J are used. Furthermore, the effects of …
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Ultra-Narrow Laser Linewidth Measurement
… using the LC-RDSHI method. The non-linear curve fitting of Voigt lineshape to separate Lorentzian and Gaussian components was investigated. Voigt curve fitting results give us a clear view on laser frequency noises and laser linewidth nature. It is also shown that for a ultra-narrow linewidth …
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SuperDARN Data Simulation, Processing, Access, and Use in Analysis of Mid-latitude Convection
… algorithm for nonlinear curve fitting (LMFIT). FITACF is found to have problems when processing data with high (> 1~km/s) Doppler velocity, and is outperformed by both FITEX2 and LMFIT. LMFIT is found to produce slightly better fitting results than FITEX2, and is thus my …
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Investigation into the partitioning of Lindane between air and dust in indoor environments
… (k1 and k2 respectively) were determined by fitting results from the dynamic adsorption tests to an existing two compartment model described in chapter 2, using the statistical analysis software SPSS (vs16). These dynamic tests were carried out for two size fractions (<20µm and >45µm<63µm) …
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A modulated renewal Hawkes process and its application to modelling extreme mid-price drops on cryptocurrencies
… on cryptocurrencies. We also compared the model fitting results with several simpler models, such as the nonstationary Hawkes process and the renewal Hawkes process. On most of the cryptocurrency data sets considered in this work, the modulated renewal Hawkes process was found to provide the best …
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Coronary flow mechanics: an anatomically based mathematical model of coronary blood flow coupled to cardiac contraction
… of resistance and compliance with pressure by fitting results from published anatomical data. The venous network is assumed to parallel the generated arterial model. The calculated blood flow through the network model demonstrates physiological pressure drops, flow rates and a regional …
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Weighing the Milky Way While Exploring Dynamical Disequilibrium
… distribution in phase spaces. Such simultaneous fittings not only measured the gravitational potential and decomposed them into baryonic and dark contributions, they also made it convenient for residual analysis in arbitrary spaces. Taking this advantage, we adopted the theory of phase mixing …
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