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The 2.6 Angstrom resolution structure of Rhodobacter capsulatus bacterioferritin with metal-free dinuclear site and heme iron in a crystallographic 'special position'
None
Date:
October 31, 2001
Creator:
Cobessi, D.; Huang, L.-S.; Ban, M.; Pon, N. G.; Daldal, F. & Berry, E. A.
Object Type:
Article
System:
The UNT Digital Library
[12th Armored Division Memorial]
Photograph of a memorial to the 12th Armored Division near the Dyess Air Base in Abilene, Texas. It reads: "Dedicated to the memory of all men of the 12th Armored Division in World War II. Camp Barkeley, 1943-44." There is a list of 12th Armored Division units and division actions in the middle of the memorial. The text under that reads: "Installed by members and friends of the 12th Armored Division Association. Memorial Committee: R. O. Collier, M. R. Drum, M. L. Glover, F. G. Hatt, Jr., J. J. King, B. Leftwich".
Date:
October 2001
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[12th Armored Division Memorial Museum Dedication]
Photograph of a large crowd of people sitting outside at the dedication service of the 12th Armored Division Memorial Museum in Abilene, Texas. Several men in blue Army uniforms are seated on a raised platform in the background.
Date:
October 6, 2001
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[12th Armored Division Quilt]
Photograph of a quilt with the insignia of the 12th Armored Division surrounded by the patches of its units, on display in the 12th Armored Division museum in Abilene, Texas.
Date:
October 2001
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[12th Armored Division Veterans]
Photograph of veterans holding flags while walking in a dedication parade for the 12th Armored Division Memorial Museum.
Date:
October 2001
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[12th Armored Division Veterans in Parade]
Photograph of a group of 12th Armored Division veterans in a truck at the dedication parade for the 12th Armored Division Memorial Museum in October 2001.
Date:
October 2001
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
15th Street News (Midwest City, Okla.), Vol. 31, No. 5, Ed. 1 Friday, October 5, 2001
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 5, 2001
Creator:
Baldwin, Alisha
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 31, No. 6, Ed. 1 Friday, October 12, 2001
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 12, 2001
Creator:
Baldwin, Alisha
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 31, No. 7, Ed. 1 Friday, October 26, 2001
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 26, 2001
Creator:
Baldwin, Alisha
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[17th Armored Infantry Battalion Display]
Photograph of display cases in the 17th Armored Infantry Battalion section of the 12th Armored Infantry Division in Abilene, Texas. There are pictures mounted on the wall in the background, a uniform in a case to the left, and equipment in a case to the right.
Date:
October 2001
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
2000 Census: Better Productivity Data Needed for Future Planning and Budgeting
A letter report issued by the General Accounting Office with an abstract that begins "Nonresponse follow-up was the most expensive and labor-intensive of all Census 2000 operations. The Census Bureau spent $1.2 billion and used more than 500,000 enumerators to obtain census information from 42 million nonresponding households in less than 10 weeks. Because of this colossal workload, even small variations in productivity had significant cost implications. Workload and enumerator productivity have historically been two of the largest drivers of census costs, and the Bureau developed its budget model for the 2000 Census using key assumptions about these two variables. Nationally, enumerators completed their nonresponse follow-up workload at a rate of 1.04 housing units per hour--slightly exceeding the Bureau's expected rate of 1.03 housing units per hour. Productivity varied for the four primary types of local census offices, ranging from 0.90 housing units per hour in inner-city and urban areas to 1.10 cases per hour in rural areas. In refining the data, the Bureau corrected what it considered to be the most significant discrepancy--a misclassification of some employees' time charges that overstated the number of hours worked by nonresponse follow-up enumerators and understated enumerator production rates."
Date:
October 4, 2001
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
2001 Oklahoma Music Hall of Fame Program
2001 Oklahoma Music Hall of Fame Program
Date:
October 19, 2001
Creator:
unknown
Object Type:
Pamphlet
System:
The Gateway to Oklahoma History
3DIVS: 3-Dimensional Immersive Virtual Sculpting
Virtual Environments (VEs) have the potential to revolutionize traditional product design by enabling the transition from conventional CAD to fully digital product development. The presented prototype system targets closing the ''digital gap'' as introduced by the need for physical models such as clay models or mockups in the traditional product design and evaluation cycle. We describe a design environment that provides an intuitive human-machine interface for the creation and manipulation of three-dimensional (3D) models in a semi-immersive design space, focusing on ease of use and increased productivity for both designer and CAD engineers.
Date:
October 3, 2001
Creator:
Kuester, F; Duchaineau, M A; Hamann, B; Joy, K I & Uva, A E
Object Type:
Article
System:
The UNT Digital Library
Acceptable Knowledge Summary Report for Mixed TRU Waste Streams: SR-W026-221F-HET-A through D
This document, along with referenced supporting documents provides a defensible and auditable record of acceptable knowledge for the heterogeneous debris mixed transuranic waste streams generated in the FB-Line after January 25, 1990 and before March 20, 1997.
Date:
October 2, 2001
Creator:
Lunsford, G.F.
Object Type:
Report
System:
The UNT Digital Library
Accuracy of the Quasistatic Method for Two-Dimensional Thermal Reactor Transients with Feedback
An important aspect in the design and safe operation of a nuclear reactor is the behavior of a reactor in a transient, or nonsteady state, condition. This study shows that the quasistatic method is capable of producing highly accurate results, relative to the direct finite-difference method, for two-dimensional thermal reactor transients with feedback.
Date:
October 23, 2001
Creator:
Dodds, H.L. Jr.
Object Type:
Article
System:
The UNT Digital Library
ACME - Algorithms for Contact in a Multiphysics Environment API Version 1.0
An effort is underway at Sandia National Laboratories to develop a library of algorithms to search for potential interactions between surfaces represented by analytic and discretized topological entities. This effort is also developing algorithms to determine forces due to these interactions for transient dynamics applications. This document describes the Application Programming Interface (API) for the ACME (Algorithms for Contact in a Multiphysics Environment) library.
Date:
October 1, 2001
Creator:
BROWN, KEVIN H.; SUMMERS, RANDALL M.; GLASS, MICHEAL W.; GULLERUD, ARNE S.; HEINSTEIN, MARTIN W. & JONES, REESE E.
Object Type:
Report
System:
The UNT Digital Library
ACTIVE MODE CALIBRATION OF THE COMBINED THERMAL EPITHERMAL NEUTRON (CTEN) SYSTEM
None
Date:
October 1, 2001
Creator:
Veilleux, J. M.
Object Type:
Article
System:
The UNT Digital Library
The Activities of the International Criticality Safety Benchmark Evaluation Project (ICSBEP)
The International Criticality Safety Benchmark Evaluation Project (ICSBEP) was initiated in 1992 by the United States Department of Energy. The ICSBEP became an official activity of the Organization for Economic Cooperation and Development (OECD) – Nuclear Energy Agency (NEA) in 1995. Representatives from the United States, United Kingdom, France, Japan, the Russian Federation, Hungary, Republic of Korea, Slovenia, Yugoslavia, Kazakhstan, Spain, and Israel are now participating. The purpose of the ICSBEP is to identify, evaluate, verify, and formally document a comprehensive and internationally peer-reviewed set of criticality safety benchmark data. The work of the ICSBEP is published as an OECD handbook entitled “International Handbook of Evaluated Criticality Safety Benchmark Experiments”. The 2001 Edition of the Handbook contains benchmark specifications for 2642 critical or subcritical configurations that are intended for use in validation efforts and for testing basic nuclear data.
Date:
October 1, 2001
Creator:
Briggs, Joseph Blair
Object Type:
Article
System:
The UNT Digital Library
[ACU Women in Dedication Parade]
Photograph of women from the Abilene Christian University on a float in the dedication parade for the 12th Armored Division Memorial Museum.
Date:
October 2001
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
Adaptive Sensor Optimization and Cognitive Image Processing Using Autonomous Optical Neuroprocessors
Measurement and signal intelligence demands has created new requirements for information management and interoperability as they affect surveillance and situational awareness. Integration of on-board autonomous learning and adaptive control structures within a remote sensing platform architecture would substantially improve the utility of intelligence collection by facilitating real-time optimization of measurement parameters for variable field conditions. A problem faced by conventional digital implementations of intelligent systems is the conflict between a distributed parallel structure on a sequential serial interface functionally degrading bandwidth and response time. In contrast, optically designed networks exhibit the massive parallelism and interconnect density needed to perform complex cognitive functions within a dynamic asynchronous environment. Recently, all-optical self-organizing neural networks exhibiting emergent collective behavior which mimic perception, recognition, association, and contemplative learning have been realized using photorefractive holography in combination with sensory systems for feature maps, threshold decomposition, image enhancement, and nonlinear matched filters. Such hybrid information processors depart from the classical computational paradigm based on analytic rules-based algorithms and instead utilize unsupervised generalization and perceptron-like exploratory or improvisational behaviors to evolve toward optimized solutions. These systems are robust to instrumental systematics or corrupting noise and can enrich knowledge structures by allowing competition between multiple hypotheses. This property …
Date:
October 1, 2001
Creator:
CAMERON, STEWART M.
Object Type:
Report
System:
The UNT Digital Library
The Adjoint Method for The Optimization of Brachytherapy and Radiotherapy Patient Treatment Planning Procedures Using Monte Carlo Calculations
The goal of this project is to investigate the use of the adjoint method, commonly used in the reactor physics community, for the optimization of radiation therapy patient treatment plans. Two different types of radiation therapy are being examined, interstitial brachytherapy and radiotherapy. In brachytherapy radioactive sources are surgically implanted within the diseased organ such as the prostate to treat the cancerous tissue. With radiotherapy, the x-ray source is usually located at a distance of about 1-metere from the patient and focused on the treatment area. For brachytherapy the optimization phase of the treatment plan consists of determining the optimal placement of the radioactive sources, which delivers the prescribed dose to the disease tissue while simultaneously sparing (reducing) the dose to sensitive tissue and organs. For external beam radiation therapy the optimization phase of the treatment plan consists of determining the optimal direction and intensity of beam, which provides complete coverage of the tumor region with the prescribed dose while simultaneously avoiding sensitive tissue areas. For both therapy methods, the optimal treatment plan is one in which the diseased tissue has been treated with the prescribed dose and dose to the sensitive tissue and organs has been kept to a …
Date:
October 30, 2001
Creator:
Henderson, D. L.; Yoo, S.; Kowalok, M.; Mackie, T. R. & Thomadsen, B. R.
Object Type:
Report
System:
The UNT Digital Library
Advanced Analysis Methods in High Energy Physics
During the coming decade, high energy physics experiments at the Fermilab Tevatron and around the globe will use very sophisticated equipment to record unprecedented amounts of data in the hope of making major discoveries that may unravel some of Nature's deepest mysteries. The discovery of the Higgs boson and signals of new physics may be around the corner. The use of advanced analysis techniques will be crucial in achieving these goals. The author discusses some of the novel methods of analysis that could prove to be particularly valuable for finding evidence of any new physics, for improving precision measurements and for exploring parameter spaces of theoretical models.
Date:
October 3, 2001
Creator:
Bhat, Pushpalatha C.
Object Type:
Article
System:
The UNT Digital Library
Advanced Computational Model for Three-Phase Slurry Reactors Progress Report: October 2001
In the second year of the project, the Eulerian-Lagrangian formulation for analyzing three-phase slurry flows in a bubble column is further developed. The approach uses an Eulerian analysis of liquid flows in the bubble column, and makes use of the Lagrangian trajectory analysis for the bubbles and particle motions. An experimental set for studying a two-dimensional bubble column is also developed. The operation of the bubble column is being tested and diagnostic methodology for quantitative measurements is being developed. An Eulerian computational model for the flow condition in the two-dimensional bubble column is also being developed. The liquid and bubble motions are being analyzed and the results are being compared with the experimental setup. Solid-fluid mixture flows in ducts and passages at different angle of orientations were analyzed. The model predictions were compared with the experimental data and good agreement was found. Gravity chute flows of solid-liquid mixtures is also being studied. Further progress was also made in developing a thermodynamically consistent model for multiphase slurry flows with and without chemical reaction in a state of turbulent motion. The balance laws are obtained and the constitutive laws are being developed. Progress was also made in measuring concentration and velocity of …
Date:
October 1, 2001
Creator:
Ahmadi, Goodarz
Object Type:
Report
System:
The UNT Digital Library
ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS
The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and safer alternatives to traditional flue gas conditioning with SO{sub 3} and ammonia. During this reporting quarter, progress was made in obtaining an industry partner for a long-term demonstration and in technology transfer activities. Engineering and equipment procurement activities related to the long-term demonstration were also completed.
Date:
October 1, 2001
Creator:
Baldrey, Kenneth E.
Object Type:
Report
System:
The UNT Digital Library