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Now showing items 641-650 of 1263
Adaptive Power Control for Single and Multiuser Opportunistic Systems
(2010-07-14)
In this dissertation, adaptive power control for single and multiuser opportunistic
systems is investigated. First, a new adaptive power-controlled diversity combining
scheme for single user systems is proposed, upon which ...
Tradeoff between Investments in Infrastructure and Forecasting when Facing Natural Disaster Risk
(2010-07-14)
Hurricane Katrina of 2005 was responsible for at least 81 billion dollars of property damage. In planning for such emergencies, society must decide whether to invest in the ability to evacuate more speedily or in improved ...
The Effects of Elite Decision Making
(2010-07-14)
Decision making is a central concept in the study of both politics and
organizations. Although much research has examined how individuals make decisions,
there has been substantially less work on the consequences of these ...
Experimental Study of Gas Turbine Blade Film Cooling and Heat Transfer
(2010-10-12)
Modern gas turbine engines require higher turbine-entry gas temperature to improve their
thermal efficiency and thereby their performance. A major accompanying concern is the heat-up
of the turbine components which are ...
PARTIALLY AVERAGED NAVIER-STOKES METHOD FOR TURBULENCE CLOSURES: CHARACTERIZATION OF FLUCTUATIONS AND EXTENSION TO WALL BOUNDED FLOWS
(2010-07-14)
The work presented in this dissertation concerns continued development, validation and verification of the partially averaged Navier-Stokes (PANS) method - a variable resolution closure model for turbulence. Linear eddy ...
Probabilistic Analysis of the Compressibility of Soils
(2010-07-14)
Geotechnical engineers are always faced with uncertainties and spatial variations in
material parameters. In this work, we propose to develop a framework able to account
for different types of uncertainties in a formal and ...
Magnetic Imaging of Micrometer and Nanometer-size Magnetic Structures and Their Flux-Pinning Effects on Superconducting Thin Films
(2010-07-14)
In this work the interactions between neighboring superconducting thin film
and ferromagnetic structures, i.e. superconductor-ferromagnet hybrid systems, were
studied. A type-II superconducting thin film (Pb82Bi12), was ...
Normalizers of Finite von Neumann Algebras
(2010-10-12)
For an inclusion N \subseteq M of finite von Neumann algebras, we study the group of normalizers
N_M(B) = {u: uBu^* = B}
and the von Neumann algebra it generates. In the first part of the dissertation, we focus on the ...
Upper Estimates for Banach Spaces
(2010-10-12)
We study the relationship of dominance for
sequences and trees in Banach spaces. In the context of sequences,
we prove that domination of weakly null sequences is a uniform
property. More precisely, if $(v_i)$ is a ...
Interracial Marriage in the U.S. in 2006
(2010-07-14)
Rates of black-white intermarriage in the United States have increased over the last sixty years, yet they remain at levels below other types of interracial/interethnic unions. Prior research has centered largely on ...