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Volume 38 - Issue 10 - Friday, December 13, 2002, Rose Thorn Staff

The Rose Thorn Archive

The Rose Thorn, Rose-Hulman's independent student newspaper.

12/13/2002 Obituary Records, Hawaii Obituaries

Obituaries

List of Obituaries for individuals who passed away on 12/13/2002. Scroll down to see the names and obituary description.

"The Crescent" Student Newspaper, December 13, 2002, George Fox University Archives

"The Crescent" Student Newspaper

Student Newspaper of George Fox University.

We Are…Marshall, December 13, 2002, Office Of Marshall University Communications

We Are ... Marshall: the Newsletter for Marshall University 1999-2023

No abstract provided.

Reporter - December 13th 2002, Rit Reporter Staff

University Publications

No abstract provided.

As U.S. Prepares For Possible War With Iraq, Army Moves Toward Adopting Udri Technology To Transport Blood, University Of Dayton

News Releases

News release announces that the U.S. Army plans to use a technology developed by the University of Dayton Research Institute in a new refrigerator designed to store blood and move it through battlefields.

Wmu Board Of Trustees Regular Meeting December 13, 2002, Wmu Board Of Trustees

WMU Board of Trustees Meetings

Minutes of the WMU Board of Trustees meeting include appendices:

• Remarks by the Chair
• Remarks by the President
• Acceptance of the Agenda
• Approval of the Minutes of the September 20, 2002 Meeting
• Resignation of President
• Appointment of Interim President
• Recommendation re Honorary Degree (Floyd)
• Resolution re Presidential Search Process
• Board Dates for 2003
• Revised Board Bylaws
• Academic and Student Affairs Committee Recommendations
• Budget and Finance Committee Recommendations
• Public Comments

Interview Of Bernard Norwood Conducted By Alfred Reifman On December 13, 2002, Institute Of International Economic Law, Georgetown University Law Center

The Oral History Project of the World Trading System

No abstract provided.

University Of Central Florida Commencement, December 13 & 14, 2002, University Of Central Florida

Commencement Programs

No abstract provided.

Fall Commencement Ceremony, University Of North Florida

Commencement Printed Materials

Program for the Fall Commencement ceremonies held at UNF Arena.

Volume 40, Number 16: December 13, 2002, University Of North Dakota

University Letter Archive

No abstract provided.

Washington University Record, December 13, 2002

Washington University Record

No abstract provided.

Application Of Generalized Grids To Turbomachinery Cfd Simulations, Rajkeshar Singh

Theses and Dissertations

A generalized grid based technique was developed for handling the relative motion of grids in CFD simulations involving rotating machineries. In the present method, the relative motion between the grid blocks is handled by splitting the cellaces at the interface and updating the grid data structure appropriately. The resulting grid will have cells and cellaces with an arbitrary number of nodes and which are stored in a cellace based data structure. The current methodology is developed for cells with any number of nodes. However, the present work supports only tetrahedral elements at the interface of the rotating grid-blocks at the …

Stony Brook Press, V. 24, N. 07, Stony Brook University. Stony Brook Press.

Stony Brook Press

v. 24, n. 07, v.:ill. ; 38 cm (original analog pub.)

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

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 …

Sic Etch Development In A Lam Tcp 9400se Ii System, Janna Rea Bonds

Theses and Dissertations

SiC etch development has been performed in a Lam TCP 9400SE II system (a system meant for polysilicon etching and modified for SiC etching). SiC etching has never been reported in this particular system. Various parameters (carrier material, pressure, gas additives, gas flow, and electrode power) were examined and their effects determined on etch rate and resulting surface morphology. An efficient carrier material (graphite), operating pressure (25 mTorr), and gas flow rate (30 sccm) for obtaining peak etch rates were determined for this system. Peak etch rates of 1254 Å/min. in CHF3:O2, 4314 Å/min. in SF6:O2, and 1255 Å/min. in …

Error Estimation And Grid Adaptation For Functional Outputs Using Discrete-Adjoint Sensitivity Analysis, Ravishankar Balasubramanian

Theses and Dissertations

Within the design process, computational fluid dynamics is typically used to compute specific quantities that assess the performance of the apparatus under investigation. These quantities are usually integral output functions such as force and moment coefficients. However, to accurately model the configuration, the geometric features and the resulting physical phenomena must be adequately resolved. Due to limited computational resources a compromise must be made between the fidelity of the solution obtained and the available resources. This creates a degree of uncertainty about the error in the computed output functions. To this end, the current study attempts to address this problem …

Adsorption Of Organic Pollutants Onto Natural Adsorbents, Arun Subramani

Theses and Dissertations

In this research, the adsorptive capacities of kenaf, peat moss, hay, and peanut hulls were evaluated for the removal of TNT and 2,4-DCP from aqueous solutions. Adsorbent loading capacities determined by batch studies were verified by continuous column experiments. It was found that the adsorption capacity of the candidate adsorbents were significantly lower than granular activated carbon (GAC). The impact of surface modification techniques, such as surface oxidation, were evaluated to study the effect on adsorption capacity. At lower equilibrium concentrations of the adsorbate (less than 10 ppb), surface oxidation by ozone showed an increase in the adsorption capacity. The …

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 …

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.

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 …

Code Verification Using The Method Of Manufactured Solutions, Vasanth Kumar Murali

Theses and Dissertations

Implementations of numerical simulations for solving systems of partial differential equations are often not verified and are falsely assumed to work correctly. As a result, the implementations are prone to coding errors that could degrade the accuracy of the solution. In order to ensure that a code is written correctly, rigorous verification of all parts of the code is necessary. Code verification is the task of ascertaining whether a numerical algorithm is solving the governing equations of the problem correctly. If an exact solution existed for the governing equations then verification would be easier but these solutions are rare because …

Efficient Reliability Estimation Approach For Analysis And Optimization Of Composite Structures, Mukti Nath Singh

Theses and Dissertations

The efficient evaluation of reliability index is of considerable importance in the assessment of component reliability and reliability-based structural optimization. In this thesis, the structural reliabiltiy analysis is performed using the random sampling techniques such as traditional Monte Carlo simulation and the analytical techniques such as first-order reliability method. The feasibility of Gauss quadrature points as means of target sampling of design space and generating accurate first- and second-order response surface models of failure functions is examined. Parametric uncertainty is considered by probabilistic modeling of design parameters. Various alternative approaches for estimation of component reliability index are examined with application …

Best Effort Mpi/Rt As An Alternative To Mpi: Design And Performance Comparison, Raghavendra Angadi

Theses and Dissertations

The Real-Time Message Passing Interface (MPI/RT) is an emerging real-time communications middleware standard for distributed real-time applications. The Message Passing Interface (MPI) is the de facto standard for high performance parallel application development. In this thesis, we describe how MPI/RT with best effort quality of service can be used as an alternative for MPI. Mercury Computer Systems' RACE embedded parallel computer is used as the platform for comparison of design and performance of these two standards. The main advantages MPI/RT has over MPI are its explicit support for communication channels and its emphasis on early binding. Design and implementation of …

Condensation Heat Transfer In Horizontal Micro-Fin Tubes, Chea-Chun Kung

Theses and Dissertations

Three existing condensation heat transfer models are validated using 544 experimental data points for pure refrigerants and refrigerant mixtures. The Cavallini et al. (1999) model predicts well with the pure-refrigerant data sets. However, the Cavallini et al. (1999) model fails to predict the refrigerant-mixture data sets. The Yu and Koyama (1998) model, which is applicable for the pure refrigerants only, fails to predict most of the R22 data sets. The Kedzierski and Goncalves (1999) model, which is applicable for both pure refrigerants and refrigerant mixtures, yields relatively high mean absolute deviations for most of the pure-refrigerant data sets. The Kedzierski …

Development Of Application Program For Harmonic Analysis, Sunitha Uppalapati

Theses and Dissertations

Increased power quality problems due to intensive usage of power electronic devices resulted in development of software applications to perform quick harmonic analysis. However, the present harmonic analysis applications have special software or computer locks requirements and occupy huge memory and cost high. An application program (using Microsoft Visual C++) that is simple yet accurate in calculations; with no special software or high memory requirements is developed in this thesis work. The program uses the automatic acceptance criteria (AAC) and the harmonic penetration techniques in calculating the system voltages. Several userriendly features and tools that aid in better understanding of …

Dimensionality Reduction Of Hyperspectral Signatures For Optimized Detection Of Invasive Species, Abhinav Mathur

Theses and Dissertations

The aim of this thesis is to investigate the use of hyperspectral reflectance signals for the discrimination of cogongrass (Imperata cylindrica) from other subtly different vegetation species. Receiver operating characteristics (ROC) curves are used to determine which spectral bands should be considered as candidate features. Multivariate statistical analysis is then applied to the candidate features to determine the optimum subset of spectral bands. Linear discriminant analysis (LDA) is used to compute the optimum linear combination of the selected subset to be used as a feature for classification. Similarly, for comparison purposes, ROC analysis, multivariate statistical analysis, and LDA are utilized …

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 …

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 …