Browsing by Title
Now showing items 6245-6264 of 9115
On joint reconstruction of spin density, R2* decay and off-resonance frequency maps through a single-shot or multi-shot acquisition in magnetic resonance imaging
(2015-07-28)
Joint reconstruction of $R_2^*$ and off-resonance frequency maps is very important in many MR applications. For example, $R_2^*$ quantification can be applied to BOLD functional MRI, iron deposition measurement, and early ...
On Multiantenna Spectrum Sensing and Energy-Aware Resource Allocation in Cognitive Radio Networks
(2013-05-06)
This dissertation covers two main parts: 1) low complexity cyclostationarity based spectrum sensing in cognitive radio, and 2) energy efficient resource allocation in cognitive radio networks. Cognitive radio allows ...
On O-Basis Groups and Generalizations
(2007-08-15)
A class of finite groups which we call o-basis groups is generalized and explored. One
reason for interest in these groups lies with the concept's origins. The notion of o-basis
group arose from the study of the existence, ...
On optimal pooling of renewable energy sources through risk-averse portfolio optimization methods
(2022-02-17)
This dissertation investigates approaches to achieve optimal pooling of renewable energy sources through risk-averse portfolio optimization methods. The first chapter aims at evaluating the potential for an approach targeted ...
On Planar Embeddings of the Knaster V Lambda-Continuum
(2020-07-21)
A\v nusi\'c, Bruin, and \v Cin\v c have asked in \cite{Anusic2} which hereditarily decomposable chainable continua (HDCC) have uncountably many mutually inequivalent planar embeddings. It was noted, as per the embedding ...
On Secure Media Streaming with Path Diversity in MANETs
(2007-08-15)
To provide reliable and secure media streaming is quite challenging in the
environment of Mobile Ad Hoc Networks (MANETs) in which wireless signals are
exposed in air and the quality of media streaming is degraded by ...
On the Adversarial Robustness of Machine Learning Models on Multi-Graph Scenarios
(2023-07-27)
In this work, we study the the task of graph matching under several scenarios in an adversarial context.
Despite achieving remarkable performance, deep learning based graph matching still suffers from harassment caused
by ...
On the Classification of Intermediate Range Missiles During Launch
(2020-05-13)
This thesis explores the comparisons and contrasts of different statistical method approaches to a missile system classification which is sufficiently rapid to be suitable for use during engagement. It is meant to extend ...
On the Conjugacy Theorems of Cartan and Borel Subalgebras
(2010-04-09)
We study the conjugacy theorems of Cartan subalgebras and Borel
subalgebras of general Lie algebras. We present a history of the problem, along with two proofs of the theorems which stay completely within the realm of ...
On the Countable Dense Homogeneity of Euclidean Spaces
(2015-04-20)
A countable dense homogeneous space, in a general sense, is a topological space in which any two countable dense subsets of the space are "dispersed" the same way. In this thesis, we will show that some very well-known ...
On the derivation algebras of parabolic Lie algebras with applications to zero product determined algebras
(2014-07-11)
This dissertation builds upon and extends previous work completed by the author and his advisor in [5].
A Lie algebra g is said to be zero product determined if for each bilinear map φ: g × g → V that satisfies φ(x, y) = ...
On the Design, Synthesis, and Radiation Effect Prevention of a 6U Deep Space CubeSat
(2020-11-24)
The Alabama Space Grant Consortium initiated a workforce development program across seven universities to build a 6U CubeSat with an astrophysics payload. The science mission, an investigation on the efficacy of augmented ...
On the development of a Neural Radiance Field technique for tomographic reconstruction applied to flow diagnostics
(2024-04-25)
In this work, a novel neural implicit representation tomography algorithm based on Neural Radiance Fields is developed and demonstrated for 3D flow diagnostics. Neural Radiance Fields (NeRF) originate from the computer ...
On the Development of a Volumetric Velocimetry Technique using Multiple Plenoptic Cameras
(2018-08-29)
Plenoptic PIV was recently introduced as a viable three-dimensional, three-component velocimetry technique based on light field cameras. One of the main benefits of this technique is its single camera configuration allowing ...
On the existence of even and k-divisible-matchings
(2008-05-15)
The concept of an an even matching was first introduced by Billington and Hoffman.
They were used to find gregarious 4-cycle decompositions of $K_{8t(a),b}$ with a and b odd.
Their paper contains even matchings of type ...
On the Growth of Polynomials and Entire Functions of Exponential Type
(2004-12-15)
Concerning the growth of a polynomial and its derivative, the following inequalities
are well known as Bernstein Inequalities.
max(|z|=R) |p(z)| <= max(|z|=1) |p(z)|R^n, for R >= 1, (1)
max(|z|=1) |p0(z)| <= max(|z|=1) ...
On the Independence Number of Some Hypergraph
(2018-07-10)
For integers 1 =< m < n and a prime p (we require 2 =< m when p = 2), a subset
I(p^n; p^m) ={0,...,p^n-1} is described which contains no pm-term cyclic arithmetic progression
modulo p^n, and which is maximal among subsets ...
On the influence of landscape-scale factors on stream ecosystems and macroinvertebrate assemblages in the southeastern USA: an examination of alternative statistical methods and case studies.
(2015-07-23)
The influence of land cover on stream ecosystems has increasingly been the focus of
research in a variety of fields, including ecology, hydrology, and engineering. Human-altered
land cover can increase overland storm ...
On The Lattice Boltzmann Method: Implementation and Applications
(2008-12-15)
We studied the development and different types of the Lattice Boltzmann method. We gave several implementations. Then we presented two moving boundary treatments for the Lattice Boltzmann method, the second one is new. We ...
On the Machine Illusion
(2019-10-14)
In this work, we empirically study an emerging problem in the machine learning community, i.e., the adversarial samples. Specifically, we focus on the discussion within the realm of neural networks. The existence of ...