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Catalyst dispersion and activity under conditions of temperature-staged liquefaction

Description: The general objectives of this research are (1) to investigate the use of highly dispersed catalysts for the pretreatment of coal by mild hydrogenation, (2) to identify the active forms of the catalysts under reaction conditions and (3) to clarify the mechanisms of catalysis. The ultimate objective is to ascertain if mild catalytic hydrogenation resulting in very limited or no coal solubilization is an advantageous pretreatment for the transformation of coal into transportable fuels. The experi… more
Date: February 1, 1992
Creator: Davis, A.; Schobert, H.H.; Mitchell, G.D. & Artok, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Improved Tubulars for Better Economics in Deep Gas Well Drilling using Microwave Technology

Description: The main objective of the entire research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. Based on the results of the Phase I and insurmountable difficulties faced in the extrusion and de-waxing processes, the approach of achieving the goals of … more
Date: July 31, 2007
Creator: Agrawal, Dinesh; Gigl, Paul; Hunt, Mark & Dennis, Mahlon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of a CO2 Sequestration Module by Integrating Mineral Activation and Aqueous Carbonation

Description: Mineral carbonation is a promising concept for permanent CO{sub 2} sequestration due to the vast natural abundance of the raw materials and the permanent storage of CO{sub 2} in solid form as carbonates. The sequestration of CO{sub 2} through the employment of magnesium silicates--olivine and serpentine--is beyond the proof of concept stage. For the work done in this project, serpentine was chosen as the feedstock mineral due to its abundance and availability. Although the reactivity of olivine… more
Date: August 14, 2006
Creator: Alexander, George; Aksoy, Parvana; Andresen, John; Maroto-Valer, Mercedes & Schobert, Harold
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Utilization of Technology-Enhanced Delphi Techniques

Description: This article discusses the Delphi consensus-building technique. Also discussed are the Delphi Technique's history, the process, and some advantages and disadvantages found in the literature. Finally, this article examines a technology-enhanced version of the process.
Date: 2002
Creator: Andrews, Charles G. & Allen, Jeff M.
Item Type: Refine your search to only Article
Partner: UNT College of Information
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Final Report: A Transport Phenomena Based Approach to Probe Evolution of Weld Macro and Microstructures and A Smart Bi-directional Model of Fusion Welding

Description: In recent years, applications of numerical heat transfer and fluid flow models of fusion welding have resulted in improved understanding of both the welding processes and welded materials. They have been used to accurately calculate thermal cycles and fusion zone geometry in many cases. Here we report the following three major advancements from this project. First, we show how microstructures, grain size distribution and topology of welds of several important engineering alloys can be computed … more
Date: December 11, 2009
Creator: DebRoy, Dr. Tarasankar
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Controlled Synthesis of Metastable Oxides Utilizing Epitaxy and Epitaxial Stabilization

Description: The research enabled by this DOE grant led to 13 publications in leading refereed journals including Physical Review Letters and Applied Physics Letters as well as feature articles in the Journal of the American Ceramic Society and Physik Journal (the German equivalent of Physics Today distributed to all members of the German Physical Society) on the controlled synthesis of metastable oxides utilizing epitaxy and epitaxial stabilization. In total our results fill over 100 pages of archived jour… more
Date: October 30, 2009
Creator: Schlom, Dr. Darrell G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gas Storage Technology Consortium

Description: Gas storage is a critical element in the natural gas industry. Producers, transmission and distribution companies, marketers, and end users all benefit directly from the load balancing function of storage. The unbundling process has fundamentally changed the way storage is used and valued. As an unbundled service, the value of storage is being recovered at rates that reflect its value. Moreover, the marketplace has differentiated between various types of storage services, and has increasingly r… more
Date: May 10, 2006
Creator: Morrison, Joel L. & Elder, Sharon L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fissile and Non-Fissile Material Detection Using Nuclear Acoustic Resonance Signatures

Description: The objective of this project is to develop anovel technique for remote, non-destructive, non-radiation-based detection of materials of interest to Nonproliferation Programs. We propse the development of a detection system based on magnetic resonance principles (NAR), which would work where radiation detection is not possible. The approach would be non-intrusive, penetrating, applicable to many materials of interest for Nonproliferation, and be able to identify the nuclear samples under investi… more
Date: November 25, 2008
Creator: Tittmann, Bernhard R.; Lenahan, P.M.; Spears, David & Williams, Rhys
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Intelligent Monitoring System With High Temperature Distributed Fiberoptic Sensor For Power Plant Combustion Processes

Description: The objective of the proposed work is to develop an intelligent distributed fiber optical sensor system for real-time monitoring of high temperature in a boiler furnace in power plants. Of particular interest is the estimation of spatial and temporal distributions of high temperatures within a boiler furnace, which will be essential in assessing and controlling the mechanisms that form and remove pollutants at the source, such as NOx. The basic approach in developing the proposed sensor system … more
Date: December 26, 2005
Creator: Lee, Kwang Y.; Yin, Stuart S. & Boheman, Andre
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gas Storage Technology Consortium

Description: Gas storage is a critical element in the natural gas industry. Producers, transmission & distribution companies, marketers, and end users all benefit directly from the load balancing function of storage. The unbundling process has fundamentally changed the way storage is used and valued. As an unbundled service, the value of storage is being recovered at rates that reflect its value. Moreover, the marketplace has differentiated between various types of storage services, and has increasingly rew… more
Date: July 6, 2006
Creator: Morrison, Joel L. & Elder, Sharon L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells

Description: The Pennsylvania State University, under contract to the U.S. Department of Energy (DOE), National Energy Technology Laboratory (NETL) established a national industry-driven Stripper Well Consortium (SWC) that is focused on improving the production performance of domestic petroleum and/or natural gas stripper wells. The consortium creates a partnership with the U.S. petroleum and natural gas industries and trade associations, state funding agencies, academia, and the National Energy Technology … more
Date: May 1, 2006
Creator: Morrison, Joel L. & Elder, Sharon L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Refinery Integration of By-Products from Coal-Derived Jet Fuels

Description: The final report summarizes the accomplishments toward project goals during length of the project. The goal of this project was to integrate coal into a refinery in order to produce coal-based jet fuel, with the major goal to examine the products other than jet fuel. These products are in the gasoline, diesel and fuel oil range and result from coal-based jet fuel production from an Air Force funded program. The main goal of Task 1 was the production of coal-based jet fuel and other products tha… more
Date: March 31, 2008
Creator: Clifford, Caroline; Boehman, Andre; Song, Chunshan; Miller, Bruce & Mitchell, Gareth
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Project Final Report Regional Forest-ABL Coupling: Influence on CO2 and Climate

Description: Ecosystem CO{sub 2} exchange and atmospheric boundary layer (ABL) mixing are correlated diurnally and seasonally. Tracer transport models predict that these covariance signals produce a meridional gradient of annual mean CO{sub 2} concentration in the marine boundary layer that is half as strong as the signal produced by fossil fuel emissions. This rectifier effect has been predicted by many inversion models. However, observations to constrain the strength of the rectifier effect in nature are … more
Date: April 2, 2003
Creator: Davis, Kenneth J. & Yi, Chuixiang
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Refinery Integration of By-Products from Coal-Derived Jet Fuels Semi-Annual Progress Report: September 2005 - March 2006

Description: This report summarizes the accomplishments toward project goals during the first six months of the third year of the project to assess the properties and performance of coal based products. These products are in the gasoline, diesel and fuel oil range and result from coal based jet fuel production from an Air Force funded program. Specific areas of progress include generation of coal based material that has been fractionated into the desired refinery cuts, acquisition and installation of a rese… more
Date: May 17, 2006
Creator: Clifford, Caroline E. Burgess; Boehman, Andre; Song, Chunshan; Miller, Bruce & Mitchell, Gareth
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

The Center for Environmental Kinetics Analysis: an NSF- and DOE-funded Environmental Molecular Science Institute (EMSI) at Penn State

Description: Physicochemical and microbiological processes taking place at environmental interfaces influence natural processes as well as the transport and fate of environmental contaminants, the remediation of toxic chemicals, and the sequestration of anthropogenic CO2. A team of scientists and engineers has been assembled to develop and apply new experimental and computational techniques to expand our knowledge of environmental kinetics. We are also training a cohort of talented and diverse students to w… more
Date: April 19, 2007
Creator: Brantley, S. L.; Burgos, William D.; Dempsey, Brian A.; Heaney, Peter J.; Kubicki, James D.; Lichtner, Peter C. et al.
Item Type: Refine your search to only Poster
Partner: UNT Libraries Government Documents Department
open access

Final Technical Report on Scaling Models of the Internal Variability of Clouds DoE Grant No. DE-FG02-04ER63773

Description: The purpose of this proposal is to gain a better understanding of the space-time correlations of atmospheric fluctuations in clouds through application of methods from statistical physics to high resolution, continuous data sets of cloud observations available at the Department of Energy Atmospheric Radiation Measurement Program archive. In this report we present the accomplishments achieved during the four year period. Starting with the most recent one, we report on two break-throughs in our r… more
Date: April 24, 2008
Creator: Ivanova, Kristinka
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Capillary-Pumped Passive Reactor Concept for Space Nuclear Power

Description: To develop the passively-cooled space reactor concept using the capillary-induced lithium flow, since molten lithium possesses a very favorable surface tension characteristic. In space where the gravitational field is minimal, the gravity-assisted natural convection cooling is not effective nor an option for reactor heat removal, the capillary induced cooling becomes an attractive means of providing reactor cooling.
Date: May 30, 2008
Creator: Lin, Dr. Thomas F.; Hughes, Dr. Thomas G. & Miller, Christopher G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Search for narrow structure in proton-antiproton annihilation cross sections from 1900 to 1960 MeV

Description: The anti pp annihilation cross section has been measured with good resolution (approx.2 MeV rms) in the mass range 1900-1960 MeV. No narrow structures are seen, the 90% confidence level upper limit being 8-12 mb-MeV for the integrated area of a resonance in this mass range. However, we do not rule out a very narrow bump-dip structure seen in an earlier experiment in the 1935-1941 MeV mass interval. The data also do not support the existence of a broad structure previously reported at 1937 MeV.
Date: January 1, 1985
Creator: Lowenstein, D. I.; Pealsee, D. C.; Miller, R. J.; Lewis, R. A.; Oh, B. Y.; Smith, G. A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Tritium Breeding in a Fusion--Fission Hybrid Breeder Reactor

Description: In order to construct a D-T fusion-fission hybrid breeder reactor there must be some guarantee that tritium will be available to fuel the fusion reaction. This can be achieved by breeding tritium in the blanket of the reactor. A variety of blanket configurations have been studied with the intent of arriving at a blanket design capable of attaining sizeable values of power and fissile fuel production, and simultaneously assure self-sufficiency in tritium production for the reactor, i.e., a T-bre… more
Date: May 23, 1978
Creator: McCowan, John R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Photovoltaic mechanisms in polycrystalline thin film silicon solar cells. Eighth month technical summary report, July 31, 1979-March 31, 1980

Description: The objective of this program is to understand fundamental aspects of grain boundary influences on photocurrent collection and opposing current transport in polycrystalline silicon cells. Results of the program are expected to aid in optimizing thin film polycrystalline silicon solar cells. Three major tasks are addressed in this program, which includes a subcontract to the Pennsylvania State University (Penn State). These are: modeling, measurement technique development, and characterization a… more
Date: July 11, 1980
Creator: Temofonte, T. A.; Szedon, J. R.; Dickey, H. C.; Fonash, S. J.; Ashok, S. & Lester, P. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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