Digital Commons Network^™

Signal Modeling With Non-Uniform Time Sampling Of Features For Automatic Speech Recognition, Montri Karnjanadecha

Electrical & Computer Engineering Theses & Dissertations

This dissertation presents an investigation of non-uniform time sampling methods for spectral/temporal feature extraction in speech. Frame-based features were computed based on an encoding of the global spectral shape using a Discrete Cosine Transform. In most current “standard” methods, trajectory (dynamic) features are determined from frame-based parameters using a fixed time sampling, i.e., fixed block length and fixed block spacing. In this research, new methods are proposed and investigated in which block length and/or block spacing are variable. The idea was initially tested with HMM-based isolated word recognition, and a significant performance improvement resulted when a variable block length and …

An Improved Statcom Model For Power Flow Analysis, Zhiping Yang, Chen Shen, Lingli Zhang, Mariesa Crow

Electrical and Computer Engineering Faculty Research & Creative Works

The StatCom is traditionally modeled for power flow analysis as a PV or PQ bus depending on its primary application. The active power is either set to zero (neglecting the StatCom losses) or calculated iteratively. The StatCom voltage and reactive power compensation are usually related through the magnetics of the StatCom. This traditional power flow model of the StatCom neglects the impact of the high-frequency effects and the switching characteristics of the power electronics on the active power losses and the reactive power injection (absorption). In this paper, the authors propose a new StatCom model appropriate for power flow analysis …

Conservation Conundrum, Robert L. Brownell Jr., Barbara E. Curry, Peter Daszak, Andrew A. Cunningham, Alex D. Hyatt

United States Department of Commerce: Staff Publications

P. Daszak, A. A. Cunningham, and A. D. Hyatt present a convincing argument in their Review "Emerging infectious diseases of wildlife-threats to biodiversity and human health" (Science's Compass, 21 Jan., p. 443) that emerging infectious diseases (EIDs) pose a risk to wildlife, and they suggest that EIDs most often result from a change in the ecology of the pathogen or the host (or both). A situation they did not mention is that in some cases, the protection of threatened species can increase the risk of an EID outbreak by allowing a close association between wildlife and domestic animals where one …

Soundings 2000-06-30 (V.13 No.13), N/A N/A

Soundings

No abstract provided.

Volume 37, Number 40: June 30, 2000, University Of North Dakota

University Letter Archive

No abstract provided.

Digestibility, Nitrogen Excretion, And Mean Retention Time By North American Porcupines (Erethizon Dorsatum) Consuming Natural Forages, Laura A. Felicetti, Lisa A. Shipley, Gary W. Witmer, Charles T. Robbins

United States Department of Agriculture Wildlife Services: Staff Publications

North American porcupines (Erethizon dorsatum) subsist predominantly on low-protein, high-fiber, high-tannin diets. Therefore, we measured the porcupine's ability to digest dry matter, fiber, and protein by conducting digestion trials on eight natural forages and one pelleted ration varying in concentration of fiber, nitrogen, and tannins. On these diets, dry matter intake ranged from 5 to 234 g/kg ^0.75/d and dry matter digestibility ranged from 62% to 96%. Porcupines digested highly lignified fiber better than many large hindgut fermenters and ruminants. The porcupine's ability to digest fiber may be explained, in part, by their lengthy mean retention time …

Money Demand, Financial Distress, And Exchange-Rate Uncertainty In Indonesia, Paul D. Mc Nelis

Bulletin of Monetary Economics and Banking

This paper examines the demand for currency and quasi-money in Indonesia with linear and neural network models. The goal is to predict better the recent financial distress, reflected by the flight into currency and decline of quasi-money.The results show that neural network approaches, much more than linear models, are capable of accurate out-of-sample predictions for both monetary aggregates. However, for the very turbulent period of November and December of 1997, even the neural network models show large out-of-sample forecast errors. When a proxy for exchange-rate uncertainty supplements the network models, the out-of-sample currency demand becomes quite accurate, even for the …

Annual Report Of The University, 1999-2000, Volumes 1-4, University Of New Mexico

UNM Annual Reports

The Robert O. Anderson School and Graduate School of Management at The University of New Mexico Period of Report: July 1, 1999 to June 30, 2000 Submitted by Howard L. Smith, Dean The Anderson Schools of Management is divided into four distinct divisions- the Department of Accounting; the Department of Finance, International and Technology Management; the Department of Marketing, Information and Decision Sciences; and the Department of Organizational Studies. This structure provides an opportunity for The Anderson Schools to develop four distinct areas of excellence, proven by results reported here. I. Significant Developments During the Academic Year The Anderson Schools …

Changes In Electron-Phonon Coupling Across A Bulk Phase Transition In Copolymer Films Of Vinylidene Fluoride (70%) With Trifluoroethylene (30%), C. N. Borca, Shireen Adenwalla, Jaewu Choi, Lee Robertson, H. You, V. M. Fridkin, S. P. Palto, N. Petukhova, Stephen Ducharme, Peter A. Dowben

Peter Dowben Publications

We present evidence for a change in electron - phonon coupling across a bulk phase transition. Below the lattice stiffening transition at around 160 K, there is a change in the diffracted peak width observed by neutron and X-ray scattering techniques. Also, the electronic band structure of the copolymer is shifting in binding energy below 160 K, decreasing the density of states near the Fermi level. The value of the effective Debye temperature above the transition temperature is approximately 50 K, while below 160 K, the value of the Debye parameter is 245 K. We postulate that the coupling between …

Western News, June 29, 2000, Western Michigan University

Western News (1972-2018)

Story highlights: Board OK.s naming Bud Bender vice president for development, Board approves 3.8% tuition and fee increase, BOT approves appointments of Miller director; top administrators.

The Effects Of A Pen Pal Program On Attitude Toward Letter Writing In Fourth Grade Students, Lisa Fisher

Theses and Dissertations

This study was conducted with a group of fourth grade elementary school students in a rural area of southern New Jersey to determine whether engaging in a pen pal program would affect their attitudes toward letter writing, as determined by the scores on a writing questionnaire. The sample was a group of 50 students, consisting of 28 boys and 22 girls, of which 14 percent were black and 86 percent were white. The experimental group exchanged letters with pen pals for a period of eight weeks, while the control group did not. Language instruction for both groups remained the same. …

Bit Allocation Considering Mean Absolute Error For Image Compression, Hemen Goswami, Samuel Peter Kozaitis

Electrical Engineering and Computer Science Faculty Publications

In lossy image compression schemes, often some distortion measure is minimized to arrive at a desired target bit rate. The distortion measure that has been most studied is the mean-squared-error (MSE). However, perceptual quality often does not agree with the notion of minimization of mean square error1 . Since MSE can not guarantee the optimality of perceptual quality, others error measures have been investigated. Others have found strong mathematical and practical perspective to choose a different error measure other than MSE, especially for image compression2. In Ref. 2 it is argued that the mean absolute error (MAE) measure is a …

Wavelet-Based Image Compression Using Randomized Quantization, Samuel Peter Kozaitis, Hemen Goswami

Electrical Engineering and Computer Science Faculty Publications

We applied dithered quantization to image compression using a wavelet transform, scalar quantization method. The results indicate that dithered quantization could change the noise characteristics ofthe reconstructed image.

The Effects Of Performance Based Activities On The Achievement Of The Theme Assessment For Beginning Sounds In Kindergarten, Renee Kruse

Theses and Dissertations

The purpose of this study was to determine if students who receive performance based activities would perform better on activities that required the identification of beginning sounds than those who were taught using traditional teaching methods.

The sample in this study consisted of 89 students from a public kindergarten in southern New Jersey. The experimental group consisted of 45 students who received the sorting performance based activities. The control group consisted of 44 students who were exposed to more worksheets and verbal identification of beginning sounds than performance based activities.

A pretest and posttest was used to determine if sorting …

A Study Of The Relationship Between Self-Esteem, Academic Achievement, And Popularity On Fourth And Fifth Grade Students, Carolyn M. Arata

Theses and Dissertations

The purpose of this study is to find two relationships. The first relationship is between academic achievement and self-esteem and the second relationship is between self-esteem and popularity among fourth and fifth grade students.

The population used for the purpose of this study was a multiage classroom consisting of both fourth and fifth grades. The classroom was located in southern New Jersey. The population consisted of both male and female students. The students were given a questionnaire to measure personality and the Nonsexist Personal Attribute Inventory for Children which measured self-esteem. Academic achievement was measured by averaging grades, from mathematics, …

Illinois Wesleyan Student To Experience England At Oxford In 2000-01 School Year, Kate Weber

News and Events (Discontinued Series)

No abstract provided.

Tanis, Elliot A Oral History Interview: Retired Faculty And Administrators Of Hope College, Melissa Labarge

Retired Faculty and Administrators of Hope College

No abstract provided.

June 27, 2000 Faculty Senate Minutes, University Of South Carolina

Faculty Senate

No abstract provided.

Essentials Of K-Essence, Christian Armendariz-Picon, V. Mukhanov, Paul J. Steinhardt

Physics - All Scholarship

We recently introduced the concept of "k-essence" as a dynamical solution for explaining naturally why the universe has entered an epoch of accelerated expansion at a late stage of its evolution. The solution avoids fine-tuning of parameters and anthropic arguments. Instead, k-essence is based on the idea of a dynamical attractor solution which causes it to act as a cosmological constant only at the onset of matter-domination. Consequently, k-essence overtakes the matter density and induces cosmic acceleration at about the present epoch. In this paper, we present the basic theory of k-essence and dynamical attractors based on evolving scalar fields …

Grand Valley Forum, Volume 024, Number 41, June 26, 2000, Grand Valley State University

1999-2000, Volume 24

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.

Um Leads Consortium On Military Personnel, George Kehoe

University of Mississippi News

UNIVERSITY, Miss. -- The strong U.S. economy with its tight labor market is making it hard for the U.S. military to fill the ranks with highly qualified personnel. Assigned to tackle this problem is The University of Mississippi School of Business Administration, named the lead research unit in a three-university consortium funded by the Office of Naval Research (ONR).

A Study Of The Relationship Between Reading Attitude And Gender In Fourth Grade Children, Crisalinda C. Byro

Theses and Dissertations

The purpose of this study was to determine the relationship between reading attitude and gender, to compare reading attitudes between boys and girls on academic and recreational reading, and to attempt to show the difference in reading attitudes between boys and girls in the fourth grade. The seventy-nine (79) subjects who participated in this study were taken from the total population of the three fourth grade classes in a public elementary school in a suburban area in southern New Jersey. The Elementary Reading Attitude Survey (ERAS; McKenna & Kear, 1990) was used to assess reading attitudes. Mean reading attitude scores …

Deafdigest Gold: Vol. 4, No. 47 June 25, 2000, Barry Strassler

DeafDigest Gold 2000

No abstract provided.

Um Students Have Fewer Resources, Higher Ideals, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Board Of Trustees Minutes, June 23, 2000, Eastern Washington University

Board of Trustees Minutes

No abstract provided.

Solvability Of A Parabolic Boundary Value Problem With Internal Jump Condition, Kurt M. Bryan, Lester Caudill

Mathematical Sciences Technical Reports (MSTR)

We examine a model for the propagation of heat through a one-dimensional object with an interior ''flaw". The flaw is modeled as a nonlinear relationship between the flux and temperature jump at an interior point of the object. Under realistic hypotheses, the resulting nonlinear initial boundary value problem is shown to have a unique and suitably smooth solution.

On The Green Vol. 30 No. 18 June 21, 2000, Gallaudet University

1991-2000

On the Green is an internal publication of Gallaudet College, which later became Gallaudet University. It notified employees of updates around the campus and in the broader community, including new construction and the establishment of new academic programs. Running until 2010, it was supplanted by various forms of online mass communications across multiple audiences.

June 21, 2000 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.

The George-Anne, Georgia Southern University

The George-Anne

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The Primordial Helium Abundance: Toward Understanding And Removing The Cosmic Scatter In The Dy/Dz Relation, D. R. Ballantyne, Gary J. Ferland, P. G. Martin

Physics and Astronomy Faculty Publications

We present results from photoionization models of low-metallicity H II regions. These nebulae form the basis for measuring the primordial helium abundance. Our models show that the helium ionization correction factor (ICF) can be nonnegligible for nebulae excited by stars with effective temperatures larger than 40,000 K. Furthermore, we find that when the effective temperature rises to above 45,000 K, the ICF can be significantly negative. This result is independent of the choice of stellar atmosphere. However, if an H II region has an [O III] λ5007/[O I] λ6300 ratio greater than 300, then our models show that, regardless of …