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Big Thicket Plant Ecology: an Introduction

Access: Use of this item is restricted to the UNT Community
Originally published in 1979, Geraldine Ellis Watson’s Big Thicket Plant Ecology is now back in print. This updated edition explores the plant biology, ecology, geology, and environmental regions of the Big Thicket National Preserve. After decades of research on the Big Thicket, Watson concluded that the Big Thicket was unique for its biological diversity, due mainly to interactions of geology and climate. A visitor in the Big Thicket could look in four different directions from one spot and view scenes typical of the Appalachians, the Florida Everglades, a southwestern desert, or the pine barrens of the Carolinas. Watson covers the ecological and geological history of the Big Thicket and introduces its plant life, from longleaf pines and tupelo swamps to savannah wetlands and hardwood flats. “This is the work on the plant biology of the Big Thicket.”—Pete A.Y. Gunter, author of The Big Thicket
Date: October 15, 2006
Creator: Watson, Geraldine Ellis
Object Type: Book
System: The UNT Digital Library
PERC 2 High-End Computer System Performance: Scalable Science and Engineering (open access)

PERC 2 High-End Computer System Performance: Scalable Science and Engineering

During two years of SciDAC PERC-2, our activities had centered largely on development of new performance analysis techniques to enable efficient use on systems containing thousands or tens of thousands of processors. In addition, we continued our application engagement efforts and utilized our tools to study the performance of various SciDAC applications on a variety of HPC platforms.
Date: October 15, 2006
Creator: Reed, Daniel
Object Type: Report
System: The UNT Digital Library
Simple Models and Methods for Estimating the UltrasonicReflectivity of Spot Welds (open access)

Simple Models and Methods for Estimating the UltrasonicReflectivity of Spot Welds

This paper describes models and methods for estimating theacoustic reflectivity of the welded interfaces between spot-welded sheetsfrom normal-incidence pulse-echo ultrasound signals. The simple geometryof the problem allows an abstraction that does not resort to complex waveequations. Instead, a reflectivity model predicts the timing andamplitude of the echoes arriving at the probe. This reflectivity model isnested in a signal processing model; recovering reflectivity firstrequires deconvolution to recover discrete impulses from the probesignal, then processing these with the reflectivity model. Reflectivitymaps of spot welds generated with this model show promise for predictingweld quality.
Date: October 15, 2006
Creator: Davis, William B.
Object Type: Article
System: The UNT Digital Library
Evaluation and Characterization of Magnets and Capacitors (open access)

Evaluation and Characterization of Magnets and Capacitors

Advanced vehicle, fuel cell, hybrid electric vehicle (HEV), and plug in hybrid research and development is conducted by the U.S. Department of Energy (DOE) through its FreedomCAR and Vehicle Technologies (FCVT) program. The mission of this program is to develop more energy efficient and environmentally safe highway transportation technologies. Program activities include research, development, testing, technology validation, and technology transfer. These activities are done at the system and component levels. This report will discuss component level testing of prototype capacitors and magnets. As capacitor and magnet technologies mature, it is important to ascertain the limitations of these new technologies by subjecting the components to standardized tests to evaluate their capabilities. Test results will assist in the determination of their ability to provide improvements in power electronics and motor designs to meet the FCVT goals.
Date: October 15, 2006
Creator: Seiber, L. E.; Cunningham, J. P.; Golik, S. S. & Armstrong, G.
Object Type: Report
System: The UNT Digital Library
SBIR Phase II Final Report for Scalable Grid Technologies for Visualization Services (open access)

SBIR Phase II Final Report for Scalable Grid Technologies for Visualization Services

This project developed software tools for the automation of grid computing. In particular, the project focused in visualization and imaging tools (VTK, ParaView and ITK); i.e., we developed tools to automatically create Grid services from C++ programs implemented using the open-source VTK visualization and ITK segmentation and registration systems. This approach helps non-Grid experts to create applications using tools with which they are familiar, ultimately producing Grid services for visualization and image analysis by invocation of an automatic process.
Date: October 15, 2006
Creator: Barre, Sebastien & Schroeder, Will
Object Type: Report
System: The UNT Digital Library
Seminole Sentinel (Seminole, Tex.), Vol. 98, No. 2, Ed. 1 Sunday, October 15, 2006 (open access)

Seminole Sentinel (Seminole, Tex.), Vol. 98, No. 2, Ed. 1 Sunday, October 15, 2006

Semiweekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date: October 15, 2006
Creator: Wright, Dustin
Object Type: Newspaper
System: The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 124, No. 83, Ed. 1 Sunday, October 15, 2006 (open access)

Polk County Enterprise (Livingston, Tex.), Vol. 124, No. 83, Ed. 1 Sunday, October 15, 2006

Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date: October 15, 2006
Creator: White, Barbara
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 85, No. 324, Ed. 1 Sunday, October 15, 2006 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 85, No. 324, Ed. 1 Sunday, October 15, 2006

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: October 15, 2006
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 108, No. 169, Ed. 1 Sunday, October 15, 2006 (open access)

Altus Times (Altus, Okla.), Vol. 108, No. 169, Ed. 1 Sunday, October 15, 2006

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: October 15, 2006
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, October 15, 2006 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, October 15, 2006

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: October 15, 2006
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 91, No. 343, Ed. 1 Sunday, October 15, 2006 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 91, No. 343, Ed. 1 Sunday, October 15, 2006

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: October 15, 2006
Creator: Mattox, Jami
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Panola Watchman (Carthage, Tex.), Vol. 133, No. [81], Ed. 1 Sunday, October 15, 2006 (open access)

The Panola Watchman (Carthage, Tex.), Vol. 133, No. [81], Ed. 1 Sunday, October 15, 2006

Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date: October 15, 2006
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
[E-Mail from Arlen Miller to Michael Bailey and Mavis May, October 15, 2006] (open access)

[E-Mail from Arlen Miller to Michael Bailey and Mavis May, October 15, 2006]

E-Mail from Arlen Miller to Michael Bailey and Mavis May, October 15, 2006. The email is in regards to donated equipment that could be loaned out to volunteering cyclists.
Date: October 15, 2006
Creator: Miller, Arlen
Object Type: Letter
System: The UNT Digital Library