Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

2002

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 571 - 600 of 64463

Full-Text Articles in Entire DC Network

Integration Of Zero-Valent Metals And Chemical Oxidation For The Destruction Of 2,4,6-Trinitrotoluene Within Aqueous Matrices, Rafael Hernandez Dec 2002

Integration Of Zero-Valent Metals And Chemical Oxidation For The Destruction Of 2,4,6-Trinitrotoluene Within Aqueous Matrices, Rafael Hernandez

Theses and Dissertations

The Department of Defense (DoD) has numerous sites that contain groundwater contaminated with 2,4,6-trinitrotoluene (TNT). The currently applied technologies for treating TNT contaminated waters are carbon adsorption and chemical oxidation. Carbon adsorption is a non-destructive technology, which could create future liability issues and is inefficient at relatively low TNT concentrations. On the other hand, application of chemical oxidation for the treatment of TNT contaminated water generates trinitrobenzene (TNB), a by-product of the incomplete oxidation of TNT. TNB is regulated as strictly as TNT. Additionally, over 70% of the reactor required treatment time for meeting target levels is due solely for …


Scheduling For Proportional Differentiated Services On The Internet, Manimaran Selvaraj Dec 2002

Scheduling For Proportional Differentiated Services On The Internet, Manimaran Selvaraj

Theses and Dissertations

Proportional Differentiated Services can be provisioned in terms of bandwidth, delay, or packet loss. Several studies contributed schedulers and packet droppers that achieved proportional bandwidth, delay, or loss differentiation. However, all these schemes differentiated in terms of only one of the three metrics. A simple, unified, scalable, and robust scheme to simultaneously control all three metrics was felt important. By controlling just delay and packet loss, proportional differentiation can be achieved in terms of all three metrics. A robust adaptive scheduler for proportional delay differentiation services is presented. Proportional services are further policed by a class based packet dropper. The …


Self-Smoothing Functional Estimation, Bronson Thomas Yake Dec 2002

Self-Smoothing Functional Estimation, Bronson Thomas Yake

Theses and Dissertations

Analysis of measured data is often required when there is no deep understanding of the mathematics that accurately describes the process being measured. Additionally, realistic estimation of the derivative of measured data is often useful. Current techniques of accomplishing this type of data analysis are labor intensive, prone to significant error, and highly dependent on the expertise of the engineer performing the analysis. The ?Self-Smoothing Functional Estimation? (SSFE) algorithm was developed to automate the analysis of measured data and to provide a reliable basis for the extraction of derivative information. In addition to the mathematical development of the SSFE algorithm, …


Short Term Observations Of In Vitro Biocorrosion Of Two Commonly Used Implant Alloys, Hsin-Yi Lin Dec 2002

Short Term Observations Of In Vitro Biocorrosion Of Two Commonly Used Implant Alloys, Hsin-Yi Lin

Theses and Dissertations

Orthopedic metal implant materials may mediate a variety of adverse tissue reactions by releasing ions through corrosion. Adverse tissue reactions include inflammation, fibrosis and hypersensitivity. All of these reactions eventually lead to implant failure. The goal of this study was to provide a better understanding of the cellular-material interaction at the metal surface. The hypotheses were that 1. the attachment of cells and their released reactive inflammatory compounds (e.g. hydrogen peroxide H2O2, superoxide O2. and nitric oxide NO.) on the surfaces alter the alloys? corrosion and surface properties and 2. the changes in corrosion and chemical properties of the surfaces …


Small Signal Stability Of An Unregulated Power System, Vikas Singhvi Dec 2002

Small Signal Stability Of An Unregulated Power System, Vikas Singhvi

Theses and Dissertations

Rotor angle stability is the ability of the interconnected synchronous machines of a power system to remain in synchronism. This stability problem is concerned with the behavior of one or more synchronous machine after they have been perturbed. These perturbations can be small or large depending upon the type of disturbances considered. The work presented in this thesis is focused on the power system behavior when subjected to small disturbances. The ?small signal? disturbances are considered sufficiently small for the linearization of system equations to be permissible for the purpose of the analysis. The first step in the small signal …


Relationships Between Reflectance And Soil Physical And Chemical Properties, Abdulrahman Mohammed Alrajehy Dec 2002

Relationships Between Reflectance And Soil Physical And Chemical Properties, Abdulrahman Mohammed Alrajehy

Theses and Dissertations

Soil chemical and physical properties are important to farm productivity, and they vary within fields, so farmers are interested in managing inputs like fertilizer according to local soil conditions within fields. Thus, they must have knowledge of soil conditions of interest, which have historically been measured at a few locations with tedious soil sampling and laboratory analyses. Advantageous to farmers would be a measurement method that provided more geographically detailed information at similar or lower cost. Remote and ground-based optical sensing are possibilities for gathering detailed soil information rapidly and inexpensively. This study considers the possibility of optically measuring soil …


Two And Three-Dimensional Finite Element Analysis Of Plasticity-Induced Fatigue Crack Closure: A Comprehensive Parametric Study, Kiran N. Solanki Dec 2002

Two And Three-Dimensional Finite Element Analysis Of Plasticity-Induced Fatigue Crack Closure: A Comprehensive Parametric Study, Kiran N. Solanki

Theses and Dissertations

Finite element analyses are frequently used to model growing fatigue cracks and the associated plasticity-induced crack closure. Two-dimensional, elastic-perfectly plastic finite element analyses of middle-crack tension (M(T)), bend (SEB), and compact tension (C(T)) geometries were conducted to study fatigue crack closure and to calculate the crack opening values under plane-strain and plane-stress conditions. The loading was selected to give the same maximum stress intensity factor in both geometries, and thus similar initial forward plastic zone sizes. Mesh refinement studies were performed on all geometries with various element types. For the C(T) geometry, negligible crack opening loads under plane-strain conditions were …


Upgrading And Qualification Of A Turbulent Heat Transfer Test Facility, Olumide Folorunso Odetola Dec 2002

Upgrading And Qualification Of A Turbulent Heat Transfer Test Facility, Olumide Folorunso Odetola

Theses and Dissertations

The Turbulent Heat Transfer Test Facility (THTTF) has been refurbished and the data acquisition system upgraded. The THTTF is now controlled by a LabView 4.1 program which replaces the old program in BASIC. Heat transfer data acquired using this new program is presented as Stanton number distributions. The new data set is compared to previously reported data obtained with this facility and other wellepted published data. This project has successfully qualified the THTTF for zero-pressure gradient, isothermal wall temperature, incompressible boundary-layer flow over smooth flat plates without transpiration. The THTTF is now set to accommodate modifications which will facilitate heat …


Volute And Diffuser Performance Analysis For High Turning Turbine System, Runsong Xu Dec 2002

Volute And Diffuser Performance Analysis For High Turning Turbine System, Runsong Xu

Theses and Dissertations

Test results from a rocket turbine test model, called the Oxidizer Technology Turbine Rig (OTTR), are discussed in this paper. The turbine was designed to support the development of advanced turbines for future liquid rocket engines. It is a highly loaded single stage liquid oxygen pump drive turbine which uses inlet and exit volutes to provide optimum performance in a compact configuration. The system design creates high pressure and temperature gradients as well as high Mach number flow. These factors make it especially difficult to accurately measure the flowfield. Test issues such as probe calibration; probe interference, rake blockage, and …


Surface Mesh Generation Using Curvature-Based Refinement, Bhaskar Sinha Dec 2002

Surface Mesh Generation Using Curvature-Based Refinement, Bhaskar Sinha

Theses and Dissertations

Surface mesh generation is a critical component of the mesh generation process. The objective of the described effort was to determine if a combination of constrained Delaunay triangulation (for triangles), advancing front method (for quadrilaterals), curvature-based refinement, smoothing, and reconnection is a viable approach for discretizing a NURBS patch holding the boundary nodes fixed. The approach is significant when coupled with recently developed geometry specification that explicitly identifies common edges. This thesis describes the various techniques used to achieve the above objectives. Application of this approach to several representative geometries demonstrates that it is an effective alternative to traditional approaches.


Meeting Minutes, Wku University Senate Dec 2002

Meeting Minutes, Wku University Senate

Faculty Senate

Meeting to discuss COSFL meeting, deans and directors council, health insurance, curriculum committee, general education courses, enrollment and sustainable growth strategy.


Minutes Staff Senate Meeting, December 12, 2002, University Of Arkansas, Fayetteville. Staff Senate Dec 2002

Minutes Staff Senate Meeting, December 12, 2002, University Of Arkansas, Fayetteville. Staff Senate

Staff Senate Meeting Minutes

No abstract provided.


The Communicator, December 12, 2002, Bronx Community College Dec 2002

The Communicator, December 12, 2002, Bronx Community College

The Communicator

The Communicator newspaper published in December 12, 2002.


Arbiter, December 12, Students Of Boise State University Dec 2002

Arbiter, December 12, Students Of Boise State University

Student Newspapers

No abstract provided.


The Minutes Of The Marshall University Board Of Governors Meeting, December 12, 2002, Marshall University Board Of Governors Dec 2002

The Minutes Of The Marshall University Board Of Governors Meeting, December 12, 2002, Marshall University Board Of Governors

Board of Governors Minutes

No abstract provided.


Assessment Of Student Learning Minutes 12/12/2002, Assessment Of Student Learning Committee Dec 2002

Assessment Of Student Learning Minutes 12/12/2002, Assessment Of Student Learning Committee

Assessment of Student Learning Minutes (Inactive)

No abstract provided.


The Express: December 12, 2002, Taylor University Fort Wayne Dec 2002

The Express: December 12, 2002, Taylor University Fort Wayne

2002-2003 (Volume 7)

Romania trip added to J-term — Dr. Hensley, Kregel sign multi-book contract — TWO sponsors local service project — A glimpse of Quarks and Quasars — From the streets to the Lord — Merry Christmas — Hobbits, Romulans & J. Lo, Oh My! — TUFW’s melting pot of holiday traditions — Lady Falcons have learned to fly — Sophomore takes lead in men’s basketball — The Top Ten


Policy On The Protection Of Human Subjects, University Of Rhode Island Faculty Senate Dec 2002

Policy On The Protection Of Human Subjects, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.


Curricular Report No. 2002-2003-4 From The Graduate Council To The Faculty Senate, University Of Rhode Island Faculty Senate Dec 2002

Curricular Report No. 2002-2003-4 From The Graduate Council To The Faculty Senate, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.


The Four Hundred Eighth Report Of The Curricular Affairs Committee, University Of Rhode Island Faculty Senate Dec 2002

The Four Hundred Eighth Report Of The Curricular Affairs Committee, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.


Deafdigest: Deaf Sports News December 12, 2002, Barry Strassler Dec 2002

Deafdigest: Deaf Sports News December 12, 2002, Barry Strassler

DeafDigest Sports 2002

No abstract provided.


Uri World Wide Web Policy, University Of Rhode Island Faculty Senate Dec 2002

Uri World Wide Web Policy, University Of Rhode Island Faculty Senate

Faculty Senate Bills

No abstract provided.


The Chanticleer, 2002-12-12, Coastal Carolina University Dec 2002

The Chanticleer, 2002-12-12, Coastal Carolina University

The Chanticleer Student Newspaper

The editorially independent student produced weekly newspaper of Coastal Carolina University.


December 12, 2002, Lumpkin College Of Business And Applied Sciences Dec 2002

December 12, 2002, Lumpkin College Of Business And Applied Sciences

Curriculum Committee

No abstract provided.


College Senate Minutes December 12, 2002, Bronx Community College Senate Dec 2002

College Senate Minutes December 12, 2002, Bronx Community College Senate

BCC Governance Archives

Minutes for the meeting of the College Senate on December 12, 2002.


Clara Loy, Flute, Music Department Dec 2002

Clara Loy, Flute, Music Department

Senior and Graduate Recitals

This senior recital from December 12, 2002 features Clara Loy (flute) with Susan Teicher (piano).


The Minutes Of The Marshall University Faculty Senate Meeting, December 12, 2002, Marshall University Faculty Senate Dec 2002

The Minutes Of The Marshall University Faculty Senate Meeting, December 12, 2002, Marshall University Faculty Senate

Faculty Senate Minutes

No abstract provided.


12/12/2002 Obituary Records, Hawaii Obituaries Dec 2002

12/12/2002 Obituary Records, Hawaii Obituaries

Obituaries

List of Obituaries for individuals who passed away on 12/12/2002. Scroll down to see the names and obituary description.


Faculty Senate Agenda 2002.12.12, Longwood University Dec 2002

Faculty Senate Agenda 2002.12.12, Longwood University

Meeting Agendas and Minutes

No abstract provided.


Faculty Senate Minutes 2002.12.12, Longwood University Dec 2002

Faculty Senate Minutes 2002.12.12, Longwood University

Meeting Agendas and Minutes

No abstract provided.