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.
Results
Showing 1 to 20 of 464 for “"Gibbs"”.
-
An Adaptive Approach to Gibbs’ Phenomenon
<p>Gibbs’ Phenomenon, an unusual behavior of functions with sharp jumps, is encountered while applying the Fourier Transform on them. The resulting reconstructions have high frequency oscillations near the jumps making the reconstructions far from being accurate. To get rid of the unwanted …
-
ESTIMATION ON GIBBS ENTROPY FOR AN ENSEMBLE
… project implements a program to estimate the Gibbs Entropy for an ensemble of parallel executions. The goal is to develop tools for studying the non-deterministic feature of parallel code based on execution entropy and use these developed tools for current and future research.</p>
-
The effect of Gibbs adsorption on Marangoni Instability
… shows that adsorption of the solute in the Gibbs layer, at the gas-liquid interface, has a strong ability to retard convective instability. Theories which ignore Gibbs adsorption predict the onset of convection at Marangoni numbers as much as ten thousand times higher than the values found …
-
Algorithms for Gibbs states of quantum many-body systems
… to the parent Hamiltonian of marginals of the Gibbs state. The criterion is known to hold in 1D and in limited high temperature settings, but also provides a framework for more general results. In addition, we supplement this convex relaxation with a rounding procedure constructing globally …
-
Texture modeling--temperature effects on Markov/Gibbs random fields
Thesis: Sc. D., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 1991
-
Bayesian estimation of Thurstonian ranking models based on the Gibbs sampler
… of Thurstonian ranking models based on Gibbs sampling methods. Monte Carlo studies demonstrate that the Gibbs sampler is applicable to ranking problems with a large number of objects. To improve the efficiency of the Gibbs sampler for estimating constrained and unconstrained Thurstonian …
-
Modeling spatial patterns of mixed-species Appalachian forests with Gibbs point processes
… from forest tree stem locations. Stochastic Gibbs point processes were explored as models that could simulate short-range clustering arising from reproduction of trees by stump sprouting, and intermediate-range inhibition of trees that may result from competition for light and growing space. …
-
A Gibbs sampling approach to maximum a posteriori time delay and amplitude estimations
… efficient, however, is not a trivial task. A Gibbs Sampling Monte Carlo technique is proposed to recover these arrivals and their features. The method is tested on synthetic data as well as data from the Haro Straight experiment for the estimation of the number of arrivals, the amplitude and …
-
Calculating thermochemical equilibrium for multiphysics simulations of nuclear materials : development of yellowjacket gibbs energy minimiser
Nuclear fuels and structural materials are highly complex systems that are remarkably challenging to understand and model. Material behaviours are influenced by multiple physical phenomena such as mechanics, chemistry, heat and mass transport, etc. Moreover, lower scale phenomena inform and drive …
-
Convergence of Gibbs measures and the behavior of shrinking tubular neighborhoods of fractals and algebraic sets
… process that motivates our definition of a Gibbs measure, which is a certain probability measure on Euclidean space. In this paper we examine a sequence of Gibbs measures characterized by the distance function. In Chapter 2 we conclude that the sequence of measures converge to a Hausdorff …
-
Finding the Man, Husband, Physician & Father: Creating the Role of Doc Gibbs in Thornton Wilder's Our Town
… process as an actor in creating the role of Doc Gibbs in Our Town by Thornton Wilder. This includes research, rehearsal journal, character analysis and evaluation of my performance. Our Town was produced by the University of New Orleans Department of Film, Theatre and Communication Arts in New …
-
Three officially commissioned women war artists of the Second World War : Ethel Gabain, Evelyn Gibbs and Evelyn Dunbar
… of the work of Ethel Gabain (1883-1950), Evelyn Gibbs (1905-1991) and Evelyn Dunbar (1906-1960). All three were commissioned as war artists during the Second World War by the War Artists Advisory Committee and are probably best known today for the work they performed as war artists, indeed, the …
-
Probabilistic inference via sum-product algorithms on binary pairwise Gibbs random fields with applications to multiple fault diagnosis
… inference problems on binary pairwise Gibbs random fields (BPW-GRFs), which belong to a class of Markov random fields with applications to a large variety of systems, including computer vision, statistical mechanics, modeling of neural functions, and others. In particular, we study the …
-
Predicting the Distribution Coefficient of Solvent Extraction of Rare Earth Elements Based on the Gibbs Free Energy and Thermodynamic Theory for Equilibrium Constant
… deviation in log D vs. pH plot is the standard Gibbs free energy that gradual changes with its atomic number. The proposed model can be utilized to calculate the separation factor of the lanthanides and yttrium. A model was presented to determine any lanthanide extraction efficiency with the aid …
-
Improving the Quality of Student Learning
… phenomenographic interviewing (Beaty, Morgan and Gibbs, 1997), depth interviewing (Gibbs and Durbridge, 1976a), psychometric development of inventories (Gibbs and Simpson, 2004a), use of existing inventories (Gibbs, 1982), use of evaluation questionnaires (Coffey and Gibbs, 2001), analysis of …
-
Modeling and simulation of multi-component condensed phase combustion at the meso-scale
… i) a continuum formulation that is based on Gibbs free energy called the Gibbs formulation, ii) a well-posed equation of state (EOS) for condensed-phase materials, iii) reaction rate calibration based on reactive molecular dynamics (RMD) simulation results, and iv) a choice of a diffusion …
-
GPU-accelerated Inference for Discrete Probabilistic Programs
… in JAX that supports variable elimination and Gibbs sampling, and (2) a modeling DSL with a compiler that lowers programs to the factor graph IR. Our system enables significant performance optimizations through static analysis of the factor graph structure. Variable elimination is optimized by …
-
A Comparison of Bayesian Estimation Techniques in a Multidimensional Two-Parameter Partial Credit Item Response Model
… Markov Chain Monte Carlo (MCMC) algorithms: Gibbs Sampler and Hamiltonian Monte Carlo-No-U-Turn-Sampler (HMC-NUTS) for M2PPC models' parameter estimation. It compared the estimation accuracy and computing speed in different combinations of situations, including prior choices, test lengths, …
Page 1 of 24