6 Matching Results

Search Results

Results: 1 - 6
open access

Study of CP Violation in Dalitz-Plot Analyses of B-Meson Decays to Three Kaons

Description: The Standard Model (SM) explains CP violation in terms of the CKM matrix. The BABAR experiment was designed mainly to test the CKM model in B decays. B decays that proceed through b {yields} s loop diagrams, of which B {yields} KKK decays are an example, are sensitive to new physics effects that could lead to deviations from the CKM predictions for CP violation. We present studies of CP violation in the decays B{sup +} {yields} K{sup +}K{sup -}K{sup +}, B{sup +} {yields} K{sub S}{sup 0}K{sub S}… more
Date: February 15, 2012
Creator: Lindquist, Brian
Partner: UNT Libraries Government Documents Department
open access

Structural Diagnostics of CFRP Composite Aircraft Components by Ultrasonic Guided Waves and Built-In Piezoelectric Transducers

Description: To monitor in-flight damage and reduce life-cycle costs associated with CFRP composite aircraft, an autonomous built-in structural health monitoring (SHM) system is preferred over conventional maintenance routines and schedules. This thesis investigates the use of ultrasonic guided waves and piezoelectric transducers for the identification and localization of damage/defects occurring within critical components of CFRP composite aircraft wings, mainly the wing skin-to-spar joints. The guided wav… more
Date: February 15, 2007
Creator: Matt, Howard M.
Partner: UNT Libraries Government Documents Department
open access

An Experimental Investigation of the Structural Wave Scattering Due to Impedance Discontinuities on a Cylindrical Structure

Description: Experimental, numerical, and analytical work has shown that the response of a shell to a distributed force wave possesses unique characteristics which are dependent on the nature of structure attached to the shell. Specific characteristics which influence the response are the distribution of the discontinuities around the circumference (periodic/aperiodic), the impedance of the discontinuities relative to that of the shell, and the type of impedance (mass or stiffness). Traditional shell theory… more
Date: February 15, 2006
Creator: Glotzbecker, RJ
Partner: UNT Libraries Government Documents Department
open access

The Sorption/Desorption Behavior of Uranium in Transport Studies Using Yucca Mountain Alluvium

Description: Yucca Mountain, Nevada is the proposed site of a geologic repository for the disposal of spent nuclear fuel and high-level radioactive waste in the United States. In the event repository engineered barriers fail, the saturated alluvium located south of Yucca Mountain is expected to serve as a natural barrier to the migration of radionuclides to the accessible environment. The purpose of this study is to improve the characterization of uranium retardation in the saturated zone at Yucca Mountain … more
Date: February 15, 2006
Creator: Scism, C. D.
Partner: UNT Libraries Government Documents Department
open access

Large-eddy simulation of turbulent flow using the finite element method

Description: The equations of motion describing turbulent flows (in both the low and high Reynolds-number regimes) are well established. However, present day computers cannot meet the enormous computational requirement for numerically solving the governing equations for common engineering flows in the high Reynolds number turbulent regime. The characteristics that make turbulent, high Reynolds number flows difficult to simulate is the extreme range of time and space scales of motion. Most current engineerin… more
Date: February 15, 1995
Creator: McCallen, R. C.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen