Now showing items 12443-12462 of 12736

• #### Using forward genetics to identify novel Arabidopsis thaliana peroxisomal mutants ﻿

(2016-04-21)
Peroxisomes are single-membrane-bound organelles responsible for key metabolic reactions needed for the development of many eukaryotes. Peroxisomes lack DNA and must import nuclear-encoded proteins from the cytosol. Genetic ...
• #### Using gas-producing enzymes to enable bacterial reporting within environmental matrices ﻿

(2018-03-30)
Microbes drive processes in the Earth system far exceeding their physical scale, mediating significant fluxes in biogeochemical cycles. Microbial behavior also affects soil development, water quality, and crop yields. The ...
• #### Using glueing diagrams to find boundary curves of incompressible surfaces in a hyperbolic knot space ﻿

(1984)
We calculate some boundary curves of incompressible surfaces in some knot spaces. This method is based on a theorem of Marc Culler and Peter Shaien, and we make use of some calculations done by William Menasco.
• #### Using Motion-Based Metrics to Objectively Classify Surgeon Skill and Assess Performance with Augmented Feedback ﻿

(2016-04-25)
Objective evaluation of surgical skill based on assessment of tool movements made by the surgeon is a rapidly developing area of research. Motion-based performance metrics are computed from data recorded in real-time during ...
• #### Using Multiple Imputation, Survival Analysis, And Propensity Score Analysis In Cancer Data With Missingness ﻿

(2015-12-01)
In this thesis multiple imputation, survival analysis, and propensity score analysis are combined in order to answer questions about treatment efficacy in cancer data with missingness. While each of these fields have been ...
• #### Using Nanomaterials to Solve Environmental Problems: Advancing the Science and Engineering of Photocatalysis ﻿

(2014-04-07)
Photocatalysis is a process by which materials can transfer light energy into chemical energy in the form of reactive oxygen species (ROS), which can then oxidize chemical and biological contaminants in water. Whereas ...
• #### Using problem topology in parallelization ﻿

(1995)
Problem topology is the key to efficient parallelization support for partially regular applications. Specifically, problem topology provides the information necessary for automatic data distribution and regular application ...
• #### Using Real-Time Smoothness Metrics to Deliver Haptic Performance Cues for a Dexterous Task ﻿

(2018-04-17)
Surgeons representing a number of domains, including endovascular surgery, have expressed a desire for objective performance measures and feedback mechanisms as a means to improve training and assessment of skill. Metrics ...
• #### Using reinforcement learning to control advanced life support systems ﻿

(2005)
This thesis deals with the application of reinforcement learning techniques to the control of a closed life support system simulator, such as could be used on a long duration space mission. We apply reinforcement learning ...
• #### Using routing information to improve MAC performance in multi-hop wireless networks ﻿

(2008)
As wireless communication technology becomes increasingly available, multi-hop wireless networks such as wireless sensor networks and wireless mesh networks are receiving substantial attention from both academic and ...
• #### Using Self-Organizing Maps to discover functional relationships of brain areas from fMRI images ﻿

(2014-04-23)
This thesis combines a Conscious Self-Organizing Map (SOM) with an interactive clustering method to analyze functional Magnetic Resonance Imaging (fMRI) data to produce improved brain maps compared to maps produced at The ...
• #### Using simulation to assess prediction performance change with simulated annealing on probability arrays ﻿

(2005)
Experimental results suggest that significant improvements in forecast performance can be obtained by applying the simulated annealing on probability arrays (SAPA) algorithm to grouped event probability forecasts. Such ...
• #### Utilization of Asphaltenes as Inexpensive and Abundant Precursors of Novel Carbon-Based Nanomaterials ﻿

(2019-08-07)
Asphaltene deposition causes many difficulties and imposes challenging flow assurance problems for the oil industry throughout the globe. Asphaltenes are the heaviest and most polarizable fraction of crude oil. They have ...
• #### Utilizing parallel optimization in computational fluid dynamics ﻿

(1998)
General problems of interest in computational fluid dynamics are investigated by means of optimization. Specifically, in the first part of the dissertation, a method of optimal incremental function approximation is developed ...
• #### Vacuum Bloch-Siegert Shift in Landau Polaritons with Ultrahigh Cooperativity ﻿

(2018-02-02)
A two-level system resonantly interacting with an ac magnetic or electric field constitutes the physical basis of diverse phenomena and technologies, including nuclear magnetic resonance, stimulated emission, amplification, ...
• #### Validation of Rice Parallel Processing Testbed applications ﻿

(1989)
The Rice Parallel Processing Testbed (RPPT) is a collection of software tools for simulating the interaction of parallel programs and parallel architectures. The testbed uses a novel technique called execution-driven ...
• #### Validation of the Rice Parallel Processing Testbed using sorting algorithms (Rice University, Texas) ﻿

(1989)
The Rice Parallel Processing Testbed (RPPT) is software package for simulating the execution of parallel computers. The RPPT employs execution driven simulation to perform simulation efficiently. In this thesis, the ...

(1942)
• #### Value-driven redundancy elimination ﻿

(1996)
Value-driven redundancy elimination is a combination of value numbering and code motion. Value numbering is an optimization that assigns numbers to values in such a way that two values are assigned the same number if the ...
• #### Van der Waals interactions in density functional theory ﻿

(1998)
Various density functional methods have been tested for the van der Waals interactions of the rare gas dimers He$\rm\sb2,\ Ne\sb2$ and Ar$\sb2$ as model compounds. Detailed analysis proved that all tested and commonly used ...