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 5598 for “"coefficient"”.
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Osmotic reflection coefficient
… the reduction is given by the osmotic reflection coefficient [sigma]o,. This work was motivated by understanding the mechanistic aspects of osmotic flow through such membranes, in order to predict [sigma]o. One of the main goals of the research was to develop computational models to predict …
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Relationships between sludge specific resistance, coefficient of compressibility, blinding coefficient and vacuum filter yield
… with decreasing mean particle size. The blinding coefficient (B) was used to show the influence of mean particle size on filter cloth blinding. Blinding was shown to occur only for mean diameters less than 40u. The use of the blinding coefficient also allowed the prediction of maximum and minimum …
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Seebeck coefficient in organic semiconductors
… applied temperature differential is the Seebeck coefficient, a transport coefficient that complements measurements of electrical and thermal conductivity. The physical interpretation of the Seebeck coefficient is the entropy per charge carrier divided by its charge and is hence a direct …
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Coefficient Properties of Random Variable Sequences
Made available in DSpace on 2014-12-11T18:23:44Z (GMT). No. of bitstreams: 1 7206861.pdf: 1413825 bytes, checksum: 5f089b1f66cae1920db239b9b7fd8c0d (MD5) Previous issue date: 1971
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Evaluation of the sludge blinding coefficient
The sludge blinding coefficient, β, was evaluated in this experimental study, to determine if β could be used as a useful characterization parameter for sludge filterability. Fresh activated sludge, activated sludge aged at room temperature, primary sludge, alum sludge, and a calcium carbonate …
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Quantile Regression in a Varying Coefficient Model
… estimation of conditional quantiles in a varying-coefficient model. Quantile functions are estimated by polynomial splines and computed via linear programming. A stepwise model selection algorithm is adopted for knot selection. We show that the spline estimators attain the optimal rate of global …
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The coefficient of earth pressure at rest
An investigation of the coefficient of earth pressure at rest has been conducted with the objective of developing a better understanding about the behavior of this coefficient with consolidation, aging, overconsolidation, densification, and preshearing.
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The Green's function for the diffusion coefficient
The scattering diffusion coefficient between two points can theoretically be extracted from a random distribution of sources. An improved ability to measure the diffusion coefficient of the Earth's crust would simplify the process of characterizing the fracture network for applications in …
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Generating Random Graphs with Tunable Clustering Coefficient
… real-world networks exhibit a high clustering coefficient— the probability that two neighbors of a node are also neighbors of each other. We propose four algorithms CONF-1, CONF-2, THROW-1, and THROW-2 which are based on the configuration model and that take triangle degree sequence …
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Time-Varying Coefficient Models for Recurrent Events
I have developed time-varying coefficient models for recurrent event data to evaluate the temporal profiles for recurrence rate and covariate effects. There are three major parts in this dissertation. The first two parts propose a mixed Poisson process model with gamma frailties for single type …
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The determination of a water film coefficient and a condensing steam film coefficient for a single tube heat exchanger
… of this thesis was to determine water film coefficients and condensing steam film coefficients for a single tube heat exchanger. A shell and tube apparatus was constructed and these coefficients were determined by Wilsons graphical method. Test runs were made at various pressures and water …
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Coefficient recovery in parabolic initial boundary value problems
… problem of identifying spatially dependent coefficients in linear, parabolic, partial differential equations with specified initial and boundary conditions. We primarily explore the recovery of the diffusivity coefficient in the heat equation using a very limited amount of data on a portion …
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A penalized estimation procedure for varying coefficient models
Varying coefficient models are widely used for analyzing longitudinal data. Various methods for estimating coefficient functions have been developed over the years. We revisit the problem under the theme of functional sparsity. The problem of sparsity, including global sparsity and local sparsity, …
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Existence of Coefficient Fields in Quasi-Local Rings
… study of local algebra many results concerning coefficient fields in local rings have been discovered. The concept of a local ring was first introduced by Krull, who defined a local ring as a commutative ring R in which every ideal has a finite basis and in which the set M of all non-units is an …
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Using system dynamics to explore gini coefficient parametrics
… highlighted the direct causal influence of Gini coefficient on residential electricity consumption, by using equations as opposed to correlations. Results show that for a GDP growth rate of 2, by year 2035, a Gini coefficient of 0.5 is linked to a 3.14 increase in residential electricity demand …
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Some properties of the sample coefficient of variation
… this dissertation some properties of the sample coefficient of variation are investigated and the results are summarized below. The exact frequency function of the S.C.V., whose parent distribution is assumed to be normal, is derived. The probability of negative values of the S.C.V. is discussed …
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Coefficient d'absorption d'un système Peierls avec un gap fluctuatif
Nous présentons dans ce mémoire, le calcul du coefficient d'absorption d'un composé de type Peierls en régime fluctuatif. Nous utilisons une méthode perturbative compatible avec la théorie du groupe de renormalisation à la Kadanoff-Wilson. Il s'agit de reformuler la formule de Kubo pour la …
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Semiparametric Varying Coefficient Models for Matched Case-Crossover Studies
… one is a semiparametric spatial-temporal varying coefficient model for a small number of locations. The second method is a semiparametric spatial-temporal varying coefficient model, and is appropriate when the number of locations among the subjects is medium to large. We demonstrate the accuracy …
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