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 8796 for “"estimates"”.
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Improving Electromagnetic Bias Estimates
… and Jason-1 satellite sea surface height (SSH) estimates. Due to incomplete understanding of the physical processes which cause the bias, current operational models are based on empirical relationships between the bias wind speed and significant wave height. These models reduce RMS estimation …
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Quantitative estimates of prothrombin components
Thesis (M.S.)--Michigan State University. Dept. of Pathology, 1969
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Kindergarten children's estimates of numerosity
… size increased. Less than half gave acceptable estimates (within 25% of the actual value) for quantities greater than 10. Measures of mathematical skills revealed that kindergarten children had a well developed number sense for quantities up to about 10 but beyond that their concepts of …
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Action Simulations in Acquisition Cost Estimates
… costs. In such cases, consumers must rely on estimates of acquisition costs in making their choices. The current work examines the influence of mental simulations of product acquisition on estimates of acquisition costs. We suggest that simulations of product acquisition lead estimates to …
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Heat kernel estimates on glued spaces
In this thesis, we prove heat kernel estimates in two main contexts: (1) manifolds with ends with mixed Dirichlet and Neumann boundary condition and (2) infinite (countable) graphs satisfying certain properties, which we call book-like graphs. In both of these settings, we start with ''sufficiently …
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Estimates on Oscillatory Singular Integral Operators
<p>Included with every oscillatory singular integral operator is a phase function and a kernel, both essential to the operator’s behavior over any function space. Studies on such operators are rooted in the deep theories developed by Fourier, Calder´on, Zygmund, and Stein. In this work we show …
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Dispersive Estimates for the Schrodinger Equation
Finally in Chapter 3 we consider a problem involving the non-linear Schrodinger equation. In particular, we consider the following equation that arises in fiber optic communication systems, iut+dtu xx+u2u=0. We can reduce this to a non-linear, non-local eigenvalue equation that describes the …
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Synthetic State Estimates of Work Disability
Made available in DSpace on 2014-12-11T18:00:13Z (GMT). No. of bitstreams: 1 7511737.pdf: 9919225 bytes, checksum: 1bcfd9a3dee1517fda3e665dc08d5cc0 (MD5) Previous issue date: 1974
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Dispersive estimates for the Schrödinger equation
Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2010-06-30T12:54:50Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Green_William.pdf: 999536 bytes, checksum: 87eb33f24c92fd62a4874b5db34bf8da (MD5)
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Smoothing estimates for non commutative spaces
… proves the existence of abstract Strichartz estimates on $\rx_{\ta}$ for operators that satisfies ultracontractivity and energy estimate. And we show the abstract Strichartz estimates are applicable to the Schr\""{o}dinger equation problem on quantum Euclidean spaces $\rx_{\ta}^n$."
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Improving estimates of structural seismic motion
… addition, the author proposes an algorithm that estimates and proposes instrumentation schemes of buildings. The proposed instrumentation schemes take into consideration all three dimensions. The algorithm is described by a flow chart and mathematical equations and is implemented in MATLAB. To …
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Aiding human operators with state estimates
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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Randomized estimates in power spectral analysis
… by the economy and ease with which it produces estimates. This will be especially true when the need is for quick pilot estimates of spectra to be used in preliminary studies, as guidance for future research.
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Mesoscale temperature estimates for Western Virginia
… estimating the temperatures and comparing these estimates with the actual temperature values, using a paired t-test. A 2-sided t-test was used to compare the actual temperatures with the estimates calculated with Anderson's (1981) models and to compare Anderson's estimates with the estimates …
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Robust Parameter Inversion Using Stochastic Estimates
… two different remedies based on stochastic estimates of the objective function. In the first manuscript, we focus on maximizing the efficiency of using stochastic estimates by replacing our objective function with a surrogate objective function computed from a reduced order model (ROM). We …
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Weighted estimates for dyadic operators with complexity
We extend the definitions of dyadic paraproduct, dual dyadic paraproduct and $t$-Haar multipliers to dyadic operators that depend on the complexity $(m,n)$, for $m$ and $n$ positive integers. We will use the ideas developed by Nazarov and Volberg in \\cite{NV} to prove that the weighted …
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Bias Reduction of Estimates By Bootstrap Method
In general it is desirable to have unbiased estimators for parameters of a probability distribution function. However, there are several estimators which are not unbiased. In this thesis, we show by direct computation that the bias of the bootstrap estimate of μ⁴ can be reduced, where μ is the mean …
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Towards Improved Estimates of Upper Ocean Energetics
<p>The energy exchanged between the atmosphere and the ocean is an important parameter in understanding the Earth’s climate. One way of quantifying this energy exchange is through the use of “wind work,” or the work done on the ocean by the wind. Since wind work is calculated according to the …
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