24 Matching Results

Search Results

Results: 1 - 24
open access

An Advanced Fracture Characterization and Well Path Navigation System for Effective Re-Development and Enhancement of Ultimate Recovery From the Complex Monterey Reservoir of South Ellwood Field, Offshore California, Quarterly Report: January - March 2004

Description: Venoco Inc, intends to re-develop the Monterey Formation, a Class III basin reservoir, at South Ellwood Field, Offshore Santa Barbara, California. Well productivity in this field varies significantly. Cumulative Monterey production for individual wells has ranged from 260 STB to 8,700,000 STB. Productivity is primarily affected by how well the well path connects with the local fracture system and the degree of aquifer support. Cumulative oil recovery to date is a small percentage of the origina… more
Date: April 29, 2004
Creator: Horner, Steve
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Lost Foam Casting Technology - Phase V

Description: Previous research, conducted under DOE Contracts DE-FC07-89ID12869, DE-FC07-93ID12230 and DE-FC07-95ID113358 made significant advances in understanding the Lost Foam Casting (LFC) Process and clearly identified areas where additional developments were needed to improve the process and make it more functional in industrial environments. The current project focused on eight tasks listed as follows: Task 1--Computational Model for the Process and Data Base to Support the Model; Task 2--Casting Dim… more
Date: April 29, 2004
Creator: Sun, Wanliang; Littleton, Harry E. & Bates, Charles E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Application of NMR Methods to Identify Detection Reagents for Use in the Development of Robust Nanosensors

Description: Nuclear Magnetic Resonance (NMR) spectroscopy is a powerful technique for studying bi-molecular interactions at the atomic scale. Our NMR lab is involved in the identification of small molecules, or ligands that bind to target protein receptors, such as tetanus (TeNT) and botulinum (BoNT) neurotoxins, anthrax proteins and HLA-DR10 receptors on non-Hodgkin's lymphoma cancer cells. Once low affinity binders are identified, they can be linked together to produce multidentate synthetic high affinit… more
Date: April 29, 2004
Creator: Cosman, M; Krishnan, V V & Balhorn, R
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

An Assessment of Future Demands for and Benefits of Public Transit Srevices in Tennessee

Description: This report documents results from a study carried out by Oak Ridge National Laboratory and the University of Tennessee at Knoxville for the Office of Public Transportation, Tennessee Department of Transportation. The study team was tasked with developing a process and a supporting methodology for estimating the benefits accruing to the State from the operation of state supported public transit services. The team was also tasked with developing forecasts of the future demands for these State su… more
Date: April 29, 2004
Creator: Southworth, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characterization of Uranium Solids Precipitated with Aluminosilicates

Description: At the Savannah River Site (SRS), the High-Level Waste (HLW) Tank Farms store and process high-level liquid radioactive wastes from the Canyons and recycle water from the Defense Waste Processing Facility. The waste is concentrated using evaporators to minimize the volume of space required for HLW storage. Recently, the 2H Evaporator was shutdown due to the crystallization of sodium aluminosilicate (NAS) solids (such as cancrinite and sodalite) that contained close to 10 weight percent of eleme… more
Date: April 29, 2004
Creator: Duff, M. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The Coalition Provisional Authority (CPA): Origin, Characteristics, and Institutional Authorities

Description: The Coalition Provisional Authority (CPA or “the authority”) was established approximately one month after United States and coalition forces took control of Baghdad in Iraq on April 9, 2003.1 The authority’s mission was “to restore conditions of security and stability, to create conditions in which the Iraqi people can freely determine their own political future, (including by advancing efforts to restore and establish national and local institutions for representative governance) and facilita… more
Date: April 29, 2004
Creator: Halchin, L. Elaine
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Economic Development Options and Constraints in Remote Rural Counties: A Case Study of the Great Plains Region

Description: This report discusses socioeconomic characteristics and trends of 242 remote rural counties in seven states of the Great Plains region stretching from Texas to the Dakotas. Appendices provide individual county level data on socioeconomic trends in population, education, employment, and income for the 242 remote counties.
Date: April 29, 2004
Creator: Cowan, Tadlock
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Effect of Growth Interruption on Surface Recombination Velocity in GaInAsSb/AlGaAsSb Heterostructures Grown by Organometallic Vapor Phase Epitaxy

Description: The effects of growth interruption on the quality of GaInAsSb/AlGaAsSb heterostructures grown by organometallic vapor phase epitaxy are reported. In-situ reflectance monitoring and ex-situ characterization by high-resolution x-ray diffraction, 4K photoluminescence (PL), and time-resolved PL indicate that GaInAsSb is extremely sensitive to growth interruption time as well as the ambient atmosphere during interruption. By optimizing the interruption sequence, surface recombination velocity as low… more
Date: April 29, 2004
Creator: Wang, C. A.; Shiau, D. A.; Donetsky, D.; Anikeev, S.; Belenky, G. & Luryi, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental and Theoretical Studies of Nucleation in Supercooled Liquid Silicon. Final Program Report

Description: The original objectives of the present program consisted of two specific nucleation-related research activities; (1) to provide a set of experimental data that will enable the quantitative examination of classical nucleation theory, and (2) to describe the phenomenon of nucleation by developing general expressions of nucleation that include both the thermal and athermal components and that correctly consider and incorporate the transient effects that arise from the nonstationary cluster distrib… more
Date: April 29, 2004
Creator: Im, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Flavor violation in warped extra dimensions and CP Asymmetries in B decays

Description: We show that CP asymmetries in b {yields} s hadronic decays are potentially affected by the presence of massive color-octet particles strongly coupled to the third generation quarks. Theories with warped extra dimensions provide natural candidates in the Kaluza-Klein excitations of gluons in scenarios where flavor-breaking by bulk fermion masses results in the localization of fermion wave-functions. Topcolor models, in which a new gauge interaction leads to top-condensation and a large top mass… more
Date: April 29, 2004
Creator: Burdman, Gustavo
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Gas Turbine Reheat Using In-Situ Combustion

Description: Siemens Westinghouse Power Corporation (SWPC) is developing in-situ reheat (fuel injection via airfoil injection) as a means for increasing cycle efficiency and power output, with possibly reduced emissions. This report discusses engineering cycle evaluations on various reheat approaches, using GateCycle and ChemCad software simulations of typical F-class and G-class engines, modified for alternative reheat cycles. The conclusion that vane 1 reheat offers the most advantageous design agrees wit… more
Date: April 29, 2004
Creator: Newby, R. A.; Bachovchin, D. M. & Lippert, T. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Grain Refinement of Permanent Mold Cast Copper Base Alloys

Description: Grain refinement behavior of copper alloys cast in permanent molds was investigated. This is one of the least studied subjects in copper alloy castings. Grain refinement is not widely practiced for leaded copper alloys cast in sand molds. Aluminum bronzes and high strength yellow brasses, cast in sand and permanent molds, were usually fine grained due to the presence of more than 2% iron. Grain refinement of the most common permanent mold casting alloys, leaded yellow brass and its lead-free re… more
Date: April 29, 2004
Creator: Sadayappan, M.; Thomson, J. P.; Elboujdaini, M.; Ping Gu, G. & Sahoo, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Heat Treatment Procedure Qualification for Steel Castings

Description: Heat treatment practices used by steel foundries have been carefully studied as part of comprehensive heat treatment procedure qualification development trials. These studies highlight the relationships between critical heat treatment process control parameters and heat treatment success. Foundry heat treatment trials to develop heat treatment procedure qualifications have shed light on the relationship between heat treatment theory and current practices. Furnace load time-temperature profiles … more
Date: April 29, 2004
Creator: Charles, Mariol; Deskevich, Nicholas; Varkey, Vipin; Voigt, Robert & Wollenburg, Angela
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

High Resolution Transmission Grating Spectrometer for Edge Toroidal Rotation Measurements of Tokamak Plasmas

Description: We present a high throughput (f/3) visible (3500 - 7000 Angstrom) Doppler spectrometer for toroidal rotation velocity measurements of the Alcator C-Mod tokamak plasma. The spectrometer has a temporal response of 1 ms and a rotation velocity sensitivity of {approx}10{sup 5} cm/s. This diagnostic will have a tangential view and map out the plasma rotation at several locations along the outer half of the minor radius (r/a > 0.5). The plasma rotation will be determined from the Doppler shifted w… more
Date: April 29, 2004
Creator: Graf, A.; May, M.; Beiersdorfer, P.; Magee, E.; Lawrence, M.; Terry, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Improved Scheme for Modeling Mass Transfer between Fracture and Matrix Continua with Particle Tracking Method

Description: The dual-continuum random-walk particle tracking approach is an attractive simulation method for simulating transport in a fractured porous medium. In order to be truly successful for such a model, however, the key issue is to properly simulate the mass transfer between the fracture and matrix continua. In a recent paper, Pan and Bodvarsson (2002) proposed an improved scheme for simulating fracture-matrix mass transfer, by introducing the concept of activity range into the calculation of fractu… more
Date: April 29, 2004
Creator: Pan, L.; Seol, Y. & Bodvarsson, G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Independent Counsel: Breakdown of Expenditures for David M. Barrett

Description: Correspondence issued by the General Accounting Office with an abstract that begins "In a letter dated April 15, 2004, the Ranking Minority Member, House Committee on Government Reform, requested a monthly breakdown of all expenditures from October 2002 through September 2003 by Independent Counsel David M. Barrett. Under 28 U.S.C 596(c)(1) and (2) (2000), independent counsels are required to report on their expenditures from the permanent, indefinite appropriation established to fund independe… more
Date: April 29, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Older Americans Act Nutrition Program

Description: This report discusses the elderly nutrition program of the Older Americans Act which provides grants to state agencies on aging to support congregate and home-delivered meals to persons 60 years and older. Funding and statistics of assistance are also addressed.
Date: April 29, 2004
Creator: O'Shaughnessy, Carol
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optical Coatings for Thermophotovoltaic Spectral Control

Description: The efficiency of thermophotovoltaic (TPV) energy conversion is dependent on efficient spectral control. An edge pass filter (short pass) in series with a highly doped, epitaxially grown layer has achieved the highest performance of TPV spectral control. Front surface, tandem filters have achieved the highest spectral efficiency and represent the best prospect for even higher spectral efficiency for TPV energy conversion systems. Specifically, improvements in the physical vapor deposition proce… more
Date: April 29, 2004
Creator: Fourspring, P. M.; DePoy, D. M.; Rahmlow, T. D., Jr.; Lazo-Wasem, J. E. & Gratrix, E. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ParaDiS on BlueGene/L: scalable line dynamics

Description: We describe an innovative highly parallel application program, ParaDiS, which computes the plastic strength of materials by tracing the evolution of dislocation lines over time. We discuss the issues of scaling the code to tens of thousands of processors, and present early scaling results of the code run on a prototype of the BlueGene/L supercomputer being developed by IBM in partnership with the US DOE's ASC program.
Date: April 29, 2004
Creator: Bulatov, V.; Cai, W.; Fier, J.; Hiratani, M.; Pierce, T.; Tang, M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Potential-well distortion in barrier Rf

Description: Head-tail asymmetry has been observed in the longitudinal beam profiles in the Fermilab Recycler Ring where protons or antiprotons are stored in rf barrier buckets. The asymmetry is caused by the distortion of the rf potential well in the presence of resistive impedance. Gaussian energy distribution can fit the observed asymmetric beam profile but not without discrepancy. It can also fit the measured energy distribution. On the other hand, generalized elliptic distribution gives a better fit to… more
Date: April 29, 2004
Creator: Ng, King
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reserve Forces: Observations on Recent National Guard Use in Overseas and Homeland Missions and Future Challenges

Description: Testimony issued by the General Accounting Office with an abstract that begins "As a result of the September 11, 2001, terrorist attacks and launch of the Global War on Terrorism, the National Guard has experienced the largest activation of its forces since World War II. The Guard consists of 350,000 Army Guard soldiers and 107,000 Air Guard members. With its unique dual status, it performs state missions under the governor and federal missions at home and overseas under the President. Since Se… more
Date: April 29, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Science and Technology Review June 2004

Description: This months issue has the following articles: (1) ''A New Era in Plutonium Research''--Commentary by William H. Goldstein. (2) ''Shocking Plutonium to Reveal Its Secrets''--Livermore scientists are using a new gas gun located at the Nevada Test Site for shocking plutonium to extreme pressures and temperatures. (3) ''Strategic Supercomputing Comes of Age''--As supercomputing settles into the terascale regime, simulations reveal pertinent insights about the physics of stockpile stewardship. (4) '… more
Date: April 29, 2004
Creator: Henson, V E
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Studies of laser-driven radiative blast waves

Description: We have performed two sets of experiments looking at laser-driven radiating blast waves. In one set of experiments the effect of a drive laser's passage through a background gas on the hydrodynamical evolution of blast waves was examined. It was found that the laser's passage heats a channel in the gas, creating a region where a portion of the blast wave front had an increased velocity, leading to the formation of a bump-like protrusion on the blast wave. The second set of experiments involved … more
Date: April 29, 2004
Creator: Edwards, M J; Hansen, J; Edens, A; Ditmire, T; Adams, R; Rambo, P et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

U.S. International Broadcasting: Challenges Facing the Broadcasting Board of Governors

Description: Testimony issued by the General Accounting Office with an abstract that begins "The terrorist attacks of September 11, 2001, were a dramatic reminder of the importance of cultivating a better understanding of the United States and its policies with overseas audiences. U.S. public diplomacy activities include the efforts of the Broadcasting Board of Governors, which oversees all nonmilitary U.S. international broadcasting by the Voice of America (VOA) and several other broadcast entities. Such b… more
Date: April 29, 2004
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
Back to Top of Screen