Now showing items 51-70 of 8484

• #### A comparison of discrimination for speech and nonspeech and implications for theories of speech perception ﻿

(1988)
The present paper reviewed the literature supporting and contradicting three theories of categorical perception in speech; the specialized speech processor theory, the cue duration theory, and the acoustic percept theory. ...
• #### A comparison of finite difference stencils on two forms of the acoustic wave equation ﻿

(2000)
In practice, two forms of the acoustic wave equation, the velocity-stress and pressure forms, are used to simulate seismic experiments. These equations in their discrete forms lead to two families of finite difference ...
• #### A COMPARISON OF HOLISTIC TO DECOMPOSED RATING OF POSITION ANALYSIS QUESTIONNAIRE WORK DIMENSIONS ﻿

(1987)
Several methods for improving the job analysis process were examined using the Position Analysis Questionnaire (PAQ). Holistic ratings of PAQ dimensions for four jobs were obtained from 63 non-experts, nine graduate students ...
• #### A comparison of linear scaling replacements for diagonalization in electronic structure calculations ﻿

(2001)
Even when using parametrized semiempirical methods, quantum chemical calculations on molecules containing more than a few hundred atoms become prohibitively expensive due to O (N3) time and memory costs where N is the ...
• #### A comparison of multivariate data analysis techniques as applied to the identification of electrons and tau leptons ﻿

(2001)
This thesis compares the performance of Probability Density Estimation and Neural Networks as applied to the identification of tau leptons and electrons at the DO detector for Run II. The theory behind each method of ...
• #### A comparison of some Eocene and modern sediments by coarse fraction analysis ﻿

(1959)
Examination of an ancient sedimentary basin can provide only an incomplete geologic picture, because it reveals merely the anatomy of a dead body. Physiology must be learned on a living organism, and likewise the geologist ...
• #### A comparison of the magnetospheric specification model, the Garrett model and satellite data for the geosynchronous electron fluxes ﻿

(1991)
The Magnetospheric Specification Model (MSM) calculates electron and ion fluxes that may endanger spacecraft. This thesis is to evaluate the electron flux levels specified by the MSM by comparison with the Garrett model ...
• #### A comparison of the magnetospheric specification model, the Hardy et al. model, and satellite observations for precipitating auroral electron energy fluxes ﻿

(1992)
A semi-quantitative comparison has been made of the observed and calculated precipitating electron energy fluxes for the April 1988 magnetic storm. Electron energy fluxes were calculated by the Rice Magnetospheric Specification ...
• #### A comparison of three methods used to determine functionally important protein residues ﻿

(2003)
A new method for determining functionally important protein residues is analyzed and compared with two previously existing methods. This thesis presents the analysis of several different protein sequences and shows how the ...

(1974)
• #### A compilation and study of twentieth-century double bass solos from the orchestral literature ﻿

(2001)
The purpose of this document is to identify in the twentieth-century orchestral literature, noteworthy solos written for the double bass. Each solo is examined from a variety of viewpoints, including: its musical context ...

(1966)
• #### A comprehensive ab initio study of gallium and arsenic containing molecules ﻿

(1992)
Theoretical calculations for the ground states of arsine (AsH$\sb3$), trimethylgallium (TMG) (Ga(CH$\sb3$)$\sb3$), the arsine$\cdot$TMG adduct, gallane (GaH$\sb3$), the gallane$\cdot$arsine adduct, small Ga$\sb{x}$As$\sb{y}$ ...
• #### A comprehensive approach to spatial and spatiotemporal dependence modeling ﻿

(2000)
One of the most difficult tasks of modeling spatial and spatiotemporal random fields is that of deriving an accurate representation of the dependence structure. In practice, the researcher is faced with selecting the best ...
• #### A comprehensive study of urban gaseous and particulate air pollution in Houston, Texas: Source apportionment and the emissions inventory assessment ﻿

(2006)
Ground-level ozone is of a growing concern in many areas of the United States. Ozone is a significant health concern, particularly for people with asthma and other respiratory diseases. Ozone is rarely emitted directly ...
• #### A Compressive Phase-Locked Loop ﻿

(2011)
We develop a new method for tracking narrowband signals acquired through compressive sensing, called the compressive sensing phase-locked loop (CS-PLL). The CS-PLL enables one to track oscillating signals in very large ...
• #### A Computational Analysis of Novel Non-circular Nozzles ﻿

(2014-04-24)
This thesis presents a computational analysis for determining the flow properties of novel non-circular nozzles. In last few decades, non-circular nozzles have been investigated intensively due to their remarkably superior ...
• #### A computational analysis on an initial application of a Hemiwedge based sub-surface safety valve for use in ultra-deepwater oil wells and extreme high pressure, high temperature environments ﻿

(2010)
This study proposes and validates computationally the effectiveness of a novel, hemiwedge model for a sub-surface safety valve (SSSV). With the growing needs in the oil industry and new finds of ultra-deepwater reservoirs ...
• #### A computational investigation of solar energetic particle trajectories in model magnetospheres ﻿

(1999)
This work studies the dynamic behavior of solar energetic particles (SEPs, defined as protons and electrons with energies of 1 MeV to 1 GeV) by simulating their motion in model electromagnetic fields. Because of the hazards ...
• #### A computational method for constructing Sylvester-style sparse resultants ﻿

(2005)
We present a computational approach for constructing Sylvester style resultants for sparse systems of bivariate polynomial equations. Necessary and sufficient conditions are derived which guarantee that a multiplying set ...