Partner
UNT Libraries Government Documents Department
892
Oklahoma Historical Society
804
Sterling Municipal Library
31
National Museum of the Pacific War/Admiral Nimitz Foundation
30
UNT Libraries Special Collections
24
Texas Lutheran University
23
Alvin Community College
14
UNT Libraries
12
Nellie Pederson Civic Library
9
FM Buck Richards Library
9
55 More
Collection
Jim Argo Collection
687
Office of Scientific & Technical Information Technical Reports
499
Texas Digital Newspaper Program
243
Congressional Research Service Reports
229
Tocker Foundation Grant
149
Oklahoma Digital Newspaper Program
126
Government Accountability Office Reports
102
Texas State Publications
35
The Baytown Sun
31
National Museum of the Pacific War Oral History Collection
30
94 More
Country
States
Year
Month
Language
Results:
1 - 24 of
2,061
next
A 3-D Vortex Code for Parachute Flow Predictions: VIPAR Version 1.0
This report describes a 3-D fluid mechanics code for predicting flow past bluff bodies whose surfaces can be assumed to be made up of shell elements that are simply connected. Version 1.0 of the VIPAR code (Vortex Inflation PARachute code) is described herein. This version contains several first order algorithms that we are in the process of replacing with higher order ones. These enhancements will appear in the next version of VIPAR. The present code contains a motion generator that can be used to produce a large class of rigid body motions. The present code has also been fully coupled to a structural dynamics code in which the geometry undergoes large time dependent deformations. Initial surface geometry is generated from triangular shell elements using a code such as Patran and is written into an ExodusII database file for subsequent input into VIPAR. Surface and wake variable information is output into two ExodusII files that can be post processed and viewed using software such as EnSight{trademark}.
Date:
July 1, 2002
Creator:
Strickland, James H.; Homicz, Gregory F.; Porter, Vicki L. & Gossler, Albert A.
Object Type:
Report
System:
The UNT Digital Library
24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES
This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for clamping the sensor once it is emplaced in the borehole. If the sensors (geophones) are not adequately coupled to the surrounding rock mass, the resulting data will be of very poor quality. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.
Date:
July 1, 2002
Creator:
Westman, Erik C.
Object Type:
Report
System:
The UNT Digital Library
24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES
This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the development of simple, robust, MSHA-acceptable clamping unit. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.
Date:
July 1, 2002
Creator:
Westman, Erik C.
Object Type:
Report
System:
The UNT Digital Library
24-CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES
This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method for orienting the sensor once it is emplaced in the borehole. If the sensors (geophones) do not have the same orientation, the data will be essentially worthless. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.
Date:
July 1, 2002
Creator:
Westman, Erik C.
Object Type:
Report
System:
The UNT Digital Library
24 CHANNEL GEOPHONE ARRAY FOR HORIZONTAL OR VERTICAL BOREHOLES
This report describes the technical progress on a project to design and construct a multi-channel geophone array that improves tomographic imaging capabilities in both surface and underground mines. Especially important in the design of the array is sensor placement. One issue related to sensor placement is addressed in this report: the method of emplacing the array in a long, horizontal borehole. Improved imaging capabilities will produce energy, environmental, and economic benefits by increasing exploration accuracy and reducing operating costs.
Date:
July 1, 2002
Creator:
Westman, Erik C.
Object Type:
Report
System:
The UNT Digital Library
2000 Census: Refinements to Full Count Review Program Could Improve Future Data Quality
A letter report issued by the General Accounting Office with an abstract that begins "To ensure the completeness and accuracy of the 2000 census data, Bureau of the Census analysts were to identify, investigate, and document suspected data discrepancies or issues to clear census data files and products for subsequent processing or public release. They were to determine whether and how to correct the data by weighing quality improvements against time and budget constraints. Because the bureau lacked sufficient staff to conduct a full count review on its own, it contracted out some of the work to members of the Federal-State Cooperative Program for Population Estimates (FSCPE). FSCPE documented 1,402 data issues, 29 percent of the 4,809 issues identified by both FSCPE and bureau analysts during the full count review. Of the 4,809 issues, 1,599 dealt with "group quarters," where counts for prisons, nursing homes, dormitories, and other group living facilities differed from what analysts expected. Of the 1,599 group quarters issues, FSCPE identified 567. Discrepancies relating to housing unit counts, population data, and demographic characteristics accounted for 1,150 issues, 375 of which were identified by FSCPE. Overall, of the 4,809 issues identified during review, 4,267 were not subjected to …
Date:
July 3, 2002
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
The 2002 Farm Bill: Overview and Status
The Federal Agriculture Improvement and Reform, or FAIR, Act of 1996 (commonly known as the "farm bill"), which was due to expire in 2002, is expected to be extended for another six years when President Bush signs the bill into law. This report discusses the provisions of the new "farm bill," including the federal spending involved.
Date:
July 3, 2002
Creator:
Becker, Geoffrey S. & Womach, Jasper
Object Type:
Report
System:
The UNT Digital Library
2002 SNL ASCI Applications Software Engineering Assessment Report
This document describes the 2002 SNL Accelerated Strategic Computing Initiative (ASCI) Applications Software Quality Engineering (SQE) Assessment and the assessment results. The primary purpose of the assessment was to establish the current state of software engineering practices within the SNL ASCI Applications Program.
Date:
July 1, 2002
Creator:
WILLIAMSON, CHARLES MICHAEL; OGDEN, HARVEY C. & BYLE, KATHLEEN A.
Object Type:
Report
System:
The UNT Digital Library
2002 Update of the 155mm Lightweight Howitzer
Correspondence issued by the General Accounting Office with an abstract that begins "This report describes the schedule, cost, and technical status of the 155mm Lightweight Howitzer program. The Army-Marine Corps Lightweight Howitzer Joint Program Office directs this program's development, with a British company as the prime contractor. Since GAO's April 2000 report (See GAO-01-603R), all key milestones have slipped because a 2-year low-rate initial production phase has been added to provide production representative howitzers for operational testing. Correspondingly, the full-rate production decision has slipped from September 2002 to October 2004. Since April 2001, total program cost estimates have increased from $1,209.0 million to $1,365.2 million, principally as the result of the large number of design modifications resulting from developmental testing and restructuring the program to add a low-rate initial production phase. In addition, the costs for the towed artillery digitization increased by $51 million. Technical problems--such as the durability of the optical fire control, bore sight retention, and accuracy--have been addressed through design changes. However, some of these changes have not yet been tested, and the Marine Corps Operational Test and Evaluation Activity has yet to review test data that the program office believes shows the howitzer has met accuracy …
Date:
July 24, 2002
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Abortion: Legislative Response
The primary purpose of this issue brief is to focus on the current legislative action in the 107th Congress with respect to abortion; however, understanding that legislation requires a review of the U. S. Supreme Court’s leading decisions concerning a woman’s right to choose whether to terminate her pregnancy. For a detailed discussion of the case law, see CRS Report 95-724, Abortion Law Development: A Brief Overview.
Date:
July 19, 2002
Creator:
Lewis, Karen J.; Shimabukuro, Jon O. & Ely, Dana
Object Type:
Report
System:
The UNT Digital Library
Acoustic Wave Equations for a Linear Viscous Fluid and An Ideal Fluid
The mathematical description of acoustic wave propagation within a time- and space-varying, and moving, linear viscous fluid is formulated as a system of coupled linear equations. This system is rigorously developed from fundamental principles of continuum mechanics (conservation of mass, balance of linear and angular momentum, balance of entropy) and various constitutive relations (for stress, entropy production, and entropy conduction) by linearizing all expressions with respect to the small-amplitude acoustic wavefield variables. A significant simplification arises if the fluid medium is neither viscous nor heat conducting (i.e., an ideal fluid). In this case the mathematical system can be reduced to a set of five, coupled, first-order partial differential equations. Coefficients in the systems depend on various mechanical and thermodynamic properties of the ambient medium that supports acoustic wave propagation. These material properties cannot all be arbitrarily specified, but must satisfy another system of nonlinear expressions characterizing the dynamic behavior of the background medium. Dramatic simplifications in both systems occur if the ambient medium is simultaneously adiabatic and stationary.
Date:
July 1, 2002
Creator:
ALDRIDGE, DAVID F.
Object Type:
Report
System:
The UNT Digital Library
Acquisition Workforce: Agencies Need to Better Define and Track the Training of Their Employees
A letter report issued by the General Accounting Office with an abstract that begins "GAO's continuing reviews of the acquisition workforce, focusing on the Department of Defense (DOD); the Departments of the Army, Navy, and Air Force; the Departments of Veterans Affairs, Energy, and Health and Human Services; the General Services Administration; and the National Aeronautics and Space Administration, indicate that some of the government's largest procurement operations are not run efficiently. GAO found that requirements are not clearly defined, prices and alternatives are not fully considered, or contracts are not adequately overseen. The ongoing technological revolution requires a workforce with new knowledge, skills, and abilities, and the nature of acquisition is changing from routine simple buys toward more complex acquisitions and new business practices. DOD has adopted multidisciplinary and multifunctional definitions of their acquisition workforce, but the civilian agencies have not. DOD and the civilian agencies reviewed have developed specific training requirements for their acquisition workforce and mechanisms to track the training of acquisition personnel. All of the agencies reviewed said they had sufficient funding to provide current required core training for their acquisition workforce, but some expressed concerns about funding training for future requirements and career development, particularly …
Date:
July 29, 2002
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Acronyms, Initialisms, and Abbreviations
This document contains an updated list of common acronyms, initialisms, and abbreviations used at Sandia. It will be published in an electronic format only. It can be retrieved from HTTPS://wfsprod01.sandia.gov/groups/srn-uscitizens/documents/document/wfs048643.pdf.
Date:
July 1, 2002
Creator:
JOHNSON, DEBRA M.
Object Type:
Report
System:
The UNT Digital Library
Activities of Human Gene Nomenclature Committee
The objective of this project, shared between NIH and DOE, has been and remains to enable the medical genetics communities to use common names for genes that are discovered by different gene hunting groups, in different species. This effort provides consistent gene nomenclature and approved gene symbols to the community at large. This contributes to a uniform and consistent understanding of genomes, particularly the human as well as functional genomics based on comparisons between homologous genes in related species (human and mice).
Date:
July 16, 2002
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Adding the infrastructure class hierarchy to the EXHORT framework for object-oriented deployment simulations.
One of the objectives of the U.S. Department of Defense is to standardize all classes used in object-oriented deployment simulations by developing a standard class attribute representation and behavior for all deployment simulations that rely on an underlying class representation. The EXtensive Hierarchy and Object Representation for Transportation Simulations (EXHORT) is a class framework composed of two hierarchies that together constitute a standard and consistent class attribute representation and behavior that could be used directly by a large set of deployment simulations. The first hierarchy, the Transportation Class Hierarchy (TCH), was submitted to the Army Modeling and Simulation Office's (AMSO) Army Standards Repository in 1999 and presented at the Fall Simulation Interoperability Workshop in the same year. The second hierarchy, the Infrastructure Class Hierarchy (ICH), describes the encapsulation of the rest of the defense transportation system and is the primary focus of this paper. The entire EXHORT framework lets deployment simulations use the same set of underlying class data, ensures transparent exchanges, reduces the effort needed to integrate simulations, and permits a detailed analysis of the defense transportation system.
Date:
July 19, 2002
Creator:
Burke, J. F.; Van Groningen, C.; Bragen, M. & Macal, C. M.
Object Type:
Article
System:
The UNT Digital Library
An adjustable thickness Li/Be target for fragmentation of 3-kW heavy ion beams.
As a first step towards developing liquid lithium target technology for a future high-power nuclear physics fragmentation facility, an adjustable thickness Li/Be hybrid target is being constructed for use at the NSCL. This target will use beryllium windows with flowing lithium. The lithium serves as a part of the target as well as the coolant. Up to 1 kW of beam power is dissipated in the target and is carried away by the recirculating liquid lithium loop. It is designed for high power beams in the mass range from oxygen to calcium. Tapered beryllium windows combined with a uniform thickness lithium channel gives an overall target thickness ranging from 0.7 g/cm{sup 2} to 3 g/cm{sup 2}, which is adjusted by moving the target vertically. The target system design is complete and is described in this paper.
Date:
July 19, 2002
Creator:
Nolen, J. A.; Reed, C. B.; Hassanein, A.; Novick, V. J.; Plotkin, P.; Specht, J. R. et al.
Object Type:
Article
System:
The UNT Digital Library
Advanced Cuttings Transport Study Quarterly Technical Report: April-June 2002
This is the fourth quarterly progress report for Year-3 of the ACTS Project. It includes a review of progress made in: (1) Flow Loop construction and development and (2) research tasks during the period of time between April 1, 2002 and June 30, 2002. This report presents a review of progress on the following specific tasks: (a) Design and development of an Advanced Cuttings Transport Facility (Task 3: Addition of a Cuttings Injection/Separation System), (b) Research project (Task 6): ''Study of Cuttings Transport with Foam Under LPAT Conditions (Joint Project with TUDRP)''; (c) Research project (Task 9b): ''Study of Foam Flow Behavior Under EPET Conditions''; (d) Research project (Task 10): ''Study of Cuttings Transport with Aerated Mud Under Elevated Pressure and Temperature Conditions''; (e) Research on three instrumentation tasks to measure: Cuttings concentration and distribution in a flowing slurry (Task 11), Foam texture while transporting cuttings. (Task 12), and Viscosity of Foam under EPET (Task 9b); (f) Development of a Safety program for the ACTS Flow Loop. Progress on a comprehensive safety review of all flow-loop components and operational procedures. (Task 1S); (g) Activities towards technology transfer and developing contacts with Petroleum and service company members, and increasing the number …
Date:
July 30, 2002
Creator:
Reed, Troy; Miska, Stefan; Takach, Nicholas; Ashenayi, Kaveh; Pickell, Mark; Volk, Len et al.
Object Type:
Report
System:
The UNT Digital Library
ADVANCED DIAGNOSTIC TECHNIQUES FOR THREE-PHASE SLURRY BUBBLE COLUMN REACTORS(SBCR)
This report summarizes the accomplishment made during the third year of this cooperative research effort between Washington University, Ohio State University and Air Products and Chemicals. Data processing of the performed Computer Automated Radioactive Particle Tracking (CARPT) experiments in 6 inch column using air-water-glass beads (150 {micro}m) system has been completed. Experimental investigation of time averaged three phases distribution in air-Therminol LT-glass beads (150 {micro}m) system in 6 inch column has been executed. Data processing and analysis of all the performed Computed Tomography (CT) experiments have been completed, using the newly proposed CT/Overall gas holdup methodology. The hydrodynamics of air-Norpar 15-glass beads (150 {micro}m) have been investigated in 2 inch slurry bubble column using Dynamic Gas Disengagement (DGD), Pressure Drop fluctuations, and Fiber Optic Probe. To improve the design and scale-up of bubble column reactors, a correlation for overall gas holdup has been proposed based on Artificial Neural Network and Dimensional Analysis.
Date:
July 25, 2002
Creator:
Al-Dahhan, M.H.; Fan, L.S. & Dudukovic, M.P.
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, performance testing of flue gas conditioning was completed at the PacifiCorp Jim Bridger Power Plant. The product tested, ADA-43, was a combination resistivity modifier with cohesivity polymers. The product was effective as a flue gas conditioner. However, ongoing problems with in-duct deposition resulting from the flue gas conditioning were not entirely resolved. Primarily these problems were the result of difficulties encountered with retrofit of an existing spray humidification system. Eventually it proved necessary to replace all of the original injection lances and to manually bypass the PLC-based air/liquid feed control. This yielded substantial improvement in spray atomization and system reliability. However, the plant opted not to install a permanent system. …
Date:
July 1, 2002
Creator:
Baldrey, Kenneth E.
Object Type:
Report
System:
The UNT Digital Library
Advanced Gas Turbine Systems Research Program Quarterly Report
The quarterly activities of the Advanced Gas Turbine Systems Research (AGTSR) program are described in this quarterly report. As this program administers research, we have included all program activity herein within the past quarter as dated. More specific research progress reports are provided weekly at the request of the AGTSR COR and are being sent to NETL As for the administration of this program, items worthy of note are presented in extended bullet format following the appropriate heading.
Date:
July 1, 2002
Creator:
Golan, Lawrence P.
Object Type:
Report
System:
The UNT Digital Library
ADVANCED GASIFICATION-BASED FUEL CONVERSION AND ELECTRIC ENERGY PRODUCTION SYSTEM
Boise Cascade Corporation and the Gas Technology Institute (GTI) are cooperating to develop, demonstrate and place in continuous operation an advanced biomass gasification-based power generation system suitable for near-term commercial deployment in the Forest Products Industry. The system will be used in conjunction with, rather than in place of, existing wood waste fired boilers and flue gas cleanup systems. The novel system will include three advanced technological components based on GTI's RENUGAS{reg_sign} and three-stage stoker combustion technologies, and a gas turbine-based power generation concept developed in DOE's High Performance Power System (HIPPS) program. The system has, as its objective, to avoid the major hurdles of high-pressure gasification, i.e., high-pressure fuel feeding and ash removal, and hot gas cleaning that are typical for conventional IGCC power generation. It aims to also minimize capital intensity and technology risks. The system is intended to meet the immediate needs of the forest products industry for highly efficient and environmentally friendly electricity and steam generation systems utilizing existing wood waste as fuel resources.
Date:
July 1, 2002
Creator:
Rabovitser, Joseph & Bryan, Bruce
Object Type:
Report
System:
The UNT Digital Library
Advanced High Resolution Seismic Imaging, Material Properties Estimation and Full Wavefield for the Shallow Subsurface
Develop and test advanced near vertical to wide-angle seismic methods for structural imaging and material properties estimation of the shallow subsurface for environmental characterization efforts.
Date:
July 23, 2002
Creator:
Levander, A.; Zelt, C. A. & Symes, W. W.
Object Type:
Report
System:
The UNT Digital Library
Advanced Hydrogen Transport Membranes for Vision 21 Fossil Fuel Plants
Eltron Research Inc. and their team members are developing an environmentally benign, inexpensive, and efficient method for separating hydrogen from gas mixtures produced during industrial processes, such as coal gasification. This project was motivated by the National Energy Technology Laboratory (NETL) Vision 21 initiative which seeks to economically eliminate environmental concerns associated with the use of fossil fuels. This objective is being pursued using dense membranes based in part on Eltron-patented ceramic materials with a demonstrated ability for proton and electron conduction. The technical goals are being addressed by modifying single-phase and composite membrane composition and microstructure to maximize proton and electron conductivity without loss of material stability. Ultimately, these materials must enable hydrogen separation at practical rates under ambient and high-pressure conditions, without deactivation in the presence of feedstream components such as carbon dioxide, water, and sulfur. During this quarter, new cermet compositions were tested that demonstrated similar performance to previous materials. A 0.5-mm thick membrane achieved at H{sub 2} transport rate of 0.2 mL/min/cm{sup 2} at 950 C, which corresponded to an ambipolar conductivity of 3 x 10{sup -3} S/cm. Although these results were equivalent to those for other cermet compositions, this new composition might be useful if …
Date:
July 30, 2002
Creator:
Roark, Shane E.; Sammells, Anthony F.; Mackay, Richard A.; Pitzman, Lyrik Y.; Zirbel, Thomas A.; Barton, Thomas F. et al.
Object Type:
Report
System:
The UNT Digital Library
Advanced Light Source Compendium of User Abstracts 2001
None
Date:
July 1, 2002
Creator:
Tamura, Lori S.
Object Type:
Report
System:
The UNT Digital Library