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ACTINIDE-SPECIFIC INTERFACIAL CHEMISTRY OF MONOLAYER COATED MESOPOROUS CERAMICS (open access)

ACTINIDE-SPECIFIC INTERFACIAL CHEMISTRY OF MONOLAYER COATED MESOPOROUS CERAMICS

The objective of this program was to design, synthesize, and evaluate high-efficiency, high-capacity sorbent materials capable of selectively sequestering actinides and other radionuclides from complex aqueous mixtures. One of the central goals of this project was to understand the fundamental interfacial science required to develop novel mesoporous materials coated with organized monolayers of rationally designed ligands, custom-tailored for binding specific actinide cations. This capability addresses waste management by separation of actinides, a central concern of high-level waste (HLW) management at several DOE sites.
Date: September 30, 2001
Creator: Fryxell, Glen E.
Object Type: Report
System: The UNT Digital Library
ADVANCED HYBRID PARTICULATE COLLECTOR - PILOT-SCALE TESTING (open access)

ADVANCED HYBRID PARTICULATE COLLECTOR - PILOT-SCALE TESTING

A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed at the Energy and Environmental Research Center (EERC) with U.S. Department of Energy (DOE) funding. In addition to DOE and the EERC, the project team includes W.L. Gore and Associates, Inc., Allied Environmental Technologies, Inc., and the Big Stone power station. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a unique approach to develop a compact but highly efficient system. Filtration and electrostatics are employed in the same housing, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emissions with conventional ESPs, and solves the problem of reentrainment and re-collection of dust in conventional baghouses. The objective of the AHPC is to provide >99.99% particulate collection efficiency for particle sizes from 0.01 to 50 {micro}m and be applicable for use with all U.S. coals at a lower cost than existing technologies. In previous field tests with the AHPC, some minor bag damage was observed that appeared to be caused by electrical effects. Extensive …
Date: September 30, 2001
Creator: Zhuang, Ye; Miller, Stanley J.; Collings, Michael E. & Olderbak, Michelle R.
Object Type: Report
System: The UNT Digital Library
ALTERNATIVE FUELS AND CHEMICALS FROM SYNTHESIS GAS (open access)

ALTERNATIVE FUELS AND CHEMICALS FROM SYNTHESIS GAS

The overall objectives of this program are to investigate potential technologies for the conversion of synthesis gas to oxygenated and hydrocarbon fuels and industrial chemicals, and to demonstrate the most promising technologies at DOE's LaPorte, Texas, Slurry Phase Alternative Fuels Development Unit (AFDU). The program will involve a continuation of the work performed under the Alternative Fuels from Coal-Derived Synthesis Gas Program and will draw upon information and technologies generated in parallel current and future DOE-funded contracts.
Date: September 30, 2001
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 102, No. 181, Ed. 1 Sunday, September 30, 2001 (open access)

Altus Times (Altus, Okla.), Vol. 102, No. 181, Ed. 1 Sunday, September 30, 2001

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: September 30, 2001
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Alvin Sun-Advertiser (Alvin, Tex.), Vol. 110, No. 79, Ed. 1 Sunday, September 30, 2001 (open access)

Alvin Sun-Advertiser (Alvin, Tex.), Vol. 110, No. 79, Ed. 1 Sunday, September 30, 2001

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: September 30, 2001
Creator: Schwind, Jim & Holton, Kathleen
Object Type: Newspaper
System: The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 79, No. 308, Ed. 1 Sunday, September 30, 2001 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 79, No. 308, Ed. 1 Sunday, September 30, 2001

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: September 30, 2001
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History

[Blonde man speaking into a corded microphone on a stage: Lone Star Ride 2001 event photo]

Photograph of a blonde man with his right arm extended out of frame while he speaks into a corded microphone. He appears on a stage with a sound system speaker mounted behind him. A man in a red, white, and black jacket stands in the background facing to the right.
Date: September 30, 2001
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[A brunette women pieing a man with short blonde hair in the face: Lone Star Ride 2001 event photo]

Photograph of a brunette woman in a white shirt and jeans holding a pie to the side of the face of a man in a black shirt and dark jeans. Whip cream chucks fall to the ground and get on the fingers of the man getting pied. Directly to right is a grey trash can fitted with a clear trash bag. Hung behind the pair is a large painted circular pie.
Date: September 30, 2001
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library
Carbon Dioxide Sequestration in Geologic Coal Formations (open access)

Carbon Dioxide Sequestration in Geologic Coal Formations

BP Corporation North America, Inc. (BP) currently operates a nitrogen enhanced recovery project for coal bed methane at the Tiffany Field in the San Juan Basin, Colorado. The project is the largest and most significant of its kind wherein gas is injected into a coal seam to recover methane by competitive adsorption and stripping. The Idaho National Engineering and Environmental Laboratory (INEEL) and BP both recognize that this process also holds significant promise for the sequestration of carbon dioxide, a greenhouse gas, while economically enhancing the recovery of methane from coal. BP proposes to conduct a CO2 injection pilot at the tiffany Field to assess CO2 sequestration potential in coal. For its part the INEEL will analyze information from this pilot with the intent to define the Co2 sequestration capacity of coal and its ultimate role in ameliorating the adverse effects of global warming on the nation and the world.
Date: September 30, 2001
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Chemical Fixation of CO2 in Coal Combustion Products and Recycling through Biosystems (open access)

Chemical Fixation of CO2 in Coal Combustion Products and Recycling through Biosystems

This Annual Technical Progress Report presents the principle results in enhanced growth of algae using coal combustion products as a catalyst to increase bicarbonate levels in solution. A co-current reactor is present that increases the gas phase to bicarbonate transfer rate by a factor of five to nine. The bicarbonate concentration at a given pH is approximately double that obtained using a control column of similar construction. Algae growth experiments were performed under laboratory conditions to obtain baseline production rates and to perfect experimental methods. The final product of this initial phase in algae production is presented.
Date: September 30, 2001
Creator: Copeland, C. Henry; Pier, Paul; Whitehead, Samantha & Behel, David
Object Type: Report
System: The UNT Digital Library

[Close up portrait of Janie Bush with pie covering the edges of her face: Lone Star Ride 2001 event photo]

Photograph of event manager and ride queen Janie Bush smiling at the pie-throwing fundraising event at Round-Up Saloon in Dallas. Janie appears in a white t-shirt covered in whipped cream and chocolate sauce that also is caught in the edges of her hair and on her chin.
Date: September 30, 2001
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library

[Close up portrait of Janie Bush with pie covering the edges of her face: Lone Star Ride 2001 event photo, 2]

Photograph of event manager and ride queen Janie Bush smiling at the pie-throwing fundraising event at Round-Up Saloon in Dallas. Janie appears in a white t-shirt covered in whipped cream and chocolate sauce that also is caught in the edges of her hair and on her chin.
Date: September 30, 2001
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library
CO2 SELECTIVE CERAMIC MEMBRANE FOR WATER-GAS SHIFT REACTION WITH CONCOMITANT RECOVERY OF CO2 (open access)

CO2 SELECTIVE CERAMIC MEMBRANE FOR WATER-GAS SHIFT REACTION WITH CONCOMITANT RECOVERY OF CO2

During Year I this project has been focused on these two topic areas: (i) understanding comprehensively the CO{sub 2} affinity vs temperature, reversibility of CO{sub 2} affinity, and the role of water in order to select an optimum hydrotalcite composition for membrane preparation, and (ii) developing a membrane synthesis protocol for depositing the hydrotalcite material into a commercially available ceramic membrane from us. This annual report documents the progress we have made in these areas. In summary, the Year I study has demonstrated the technical feasibility of preparing a hydrotalcite. The proposed membrane synthesis protocol will be refined and optimized in Year II. In addition, surface analysis techniques employing FTIR and DRIFTS have been developed. These techniques have been applied to a hydrotalcite model compound to demonstrate our ability to screen hydrotalcite materials in terms of its composition and % of cation substitution. These techniques will be utilized in Year II to formulate an optimized hydrotalcite candidate for preparing a membrane with maximized CO{sub 2} transport at the proposed process condition.
Date: September 30, 2001
Creator: Liu, Paul K.T.
Object Type: Report
System: The UNT Digital Library
COAL PARTICLE FLOW PATTERNS FOR O2 ENRICHED, LOW NOx BURNERS (open access)

COAL PARTICLE FLOW PATTERNS FOR O2 ENRICHED, LOW NOx BURNERS

Over the past year, the hot flow studies have focused on the validation of a novel 2M near-flame combustion furnace. The 2M furnace was specifically designed to investigate burner aerodynamics and flame stability phenomena. Key accomplishments include completion of coal & oxygen mass balance calculations and derivation of emission conversion equations, upgrade of furnace equipment and flame safety systems, shakedown testing and partial completion of a parametric flame stability study. These activities are described in detail below along with a description of the 2M furnace and support systems.
Date: September 30, 2001
Creator: Sinclair, Jennifer L.
Object Type: Report
System: The UNT Digital Library
COFIRING BIOMASS WITH LIGNITE COAL (open access)

COFIRING BIOMASS WITH LIGNITE COAL

As of September 28, 2001, all the major project tasks have been completed. A presentation was given to the North Dakota State Penitentiary (NDSP) and the North Dakota Division of Community Services (DCS). In general, the feasibility study has resulted in the following conclusions: (1) Municipal wood resources are sufficient to support cofiring at the NDSP. (2) Steps have been taken to address all potential fuel-handling issues with the feed system design, and the design is cost-effective. (3) Fireside issues of cofiring municipal wood with coal are not of significant concern. In general, the addition of wood will improve the baseline performance of lignite coal. (4) The energy production strategy must include cogeneration using steam turbines. (5) Environmental permitting issues are small and do not affect economics. (6) The base-case economic scenario provides for a 15-year payback of a 20-year municipal bond and does not include the broader community benefits that can be realized.
Date: September 30, 2001
Creator: Schmidt, Darren D.
Object Type: Report
System: The UNT Digital Library
Compressed bitmap indices for efficient query processing (open access)

Compressed bitmap indices for efficient query processing

Many database applications make extensive use of bitmap indexing schemes. In this paper, we study how to improve the efficiencies of these indexing schemes by proposing new compression schemes for the bitmaps. Most compression schemes are designed primarily to achieve good compression. During query processing they can be orders of magnitude slower than their uncompressed counterparts. The new schemes are designed to bridge this performance gap by reducing compression effectiveness and improving operation speed. In a number of tests on both synthetic data and real application data, we found that the new schemes significantly outperform the well-known compression schemes while using only modestly more space. For example, compared to the Byte-aligned Bitmap Code, the new schemes are 12 times faster and it uses only 50 percent more space. The new schemes use much less space(<30 percent) than the uncompressed scheme and are faster in a majority of the test cases.
Date: September 30, 2001
Creator: Wu, Kesheng; Otoo, Ekow & Shoshani, Arie
Object Type: Report
System: The UNT Digital Library
Containment canister for capturing hazardous waste debris during piping modifications (open access)

Containment canister for capturing hazardous waste debris during piping modifications

The present invention relates to a containment canister for capturing hazardous waste debris during modifications to gloveboxes, or other radiological or biochemical hoods (generally termed gloveboxes therein), that require drilling and welding operations. Examples of such modifications include penetrations for pipe, thermowells, etc. In particular, the present invention relates to an improved containment canister that eliminates the need for costly containment huts and additional man power while at the same time reducing the risk of radiation exposure or other biohazard exposure to workers during glovebox modifications. The present invention also provides an improved hole saw which enables a driller to remove metal shavings and replace the hole saw if there is tooth wear present on the hole saw prior to actually penetrating a glovebox during modifications.
Date: September 30, 2001
Creator: Dozier, Stanley B.
Object Type: Patent
System: The UNT Digital Library
Development of Low-Cost Manufacturing Processes for Planar, Multilayer Solid Oxide Fuel Cell Elements (open access)

Development of Low-Cost Manufacturing Processes for Planar, Multilayer Solid Oxide Fuel Cell Elements

This report summarizes the results of Phase II of this program, 'Low-Cost Manufacturing Of Multilayer Ceramic Fuel Cells'. The objective of the program is to develop advanced ceramic manufacturing technologies for making planar solid oxide fuel cell (SOFC) components that are more economical and reliable for a variety of applications. Phase II development work focused on three distinct manufacturing approaches (or tracks) for planar solid oxide fuel cell elements. Two development tracks, led by NexTech Materials and Oak Ridge National Laboratory, involved co-sintering of planar SOFC elements of cathode-supported and anode-supported variations. A third development track, led by the University of Missouri-Rolla, focused on a revolutionary approach for reducing operating temperature of SOFCs by using spin-coating to deposit ultra-thin, nano-crystalline YSZ electrolyte films. The work in Phase II was supported by characterization work at Ohio State University. The primary technical accomplishments within each of the three development tracks are summarized. Track 1--NexTech's targeted manufacturing process for planar SOFC elements involves tape casting of porous electrode substrates, colloidal-spray deposition of YSZ electrolyte films, co-sintering of bi-layer elements, and screen printing of opposite electrode coatings. The bulk of NexTech's work focused on making cathode-supported elements, although the processes developed at NexTech also …
Date: September 30, 2001
Creator: Swartz, Scott; Seabaugh, Matthew; Dawson, William; Armstrong, Tim; Anderson, Harlan & Lannutti, John
Object Type: Report
System: The UNT Digital Library
Direct Energy Conversion Fission Reactor Progress Report: June-September 2001 (open access)

Direct Energy Conversion Fission Reactor Progress Report: June-September 2001

OAK-B135 DIRECT ENERGY CONVERSION FISSION REACTOR FOR THE PERIOD JUNE 1, 2001 THROUGH SEPTEMBER 30, 2001
Date: September 30, 2001
Creator: Brown, L. C.
Object Type: Report
System: The UNT Digital Library
Direct Production of Silicones From Sand (open access)

Direct Production of Silicones From Sand

Silicon, in the form of silica and silicates, is the second most abundant element in the earth's crust. However the synthesis of silicones (scheme 1) and almost all organosilicon chemistry is only accessible through elemental silicon. Silicon dioxide (sand or quartz) is converted to chemical-grade elemental silicon in an energy intensive reduction process, a result of the exceptional thermodynamic stability of silica. Then, the silicon is reacted with methyl chloride to give a mixture of methylchlorosilanes catalyzed by cooper containing a variety of tract metals such as tin, zinc etc. The so-called direct process was first discovered at GE in 1940. The methylchlorosilanes are distilled to purify and separate the major reaction components, the most important of which is dimethyldichlorosilane. Polymerization of dimethyldichlorosilane by controlled hydrolysis results in the formation of silicone polymers. Worldwide, the silicones industry produces about 1.3 billion pounds of the basic silicon polymer, polydimethylsiloxane.
Date: September 30, 2001
Creator: Lewis, Larry N. & Lemmon, F.J. Schattenmann: J.P.
Object Type: Report
System: The UNT Digital Library
Enhanced Oil Recovery with Downhole Vibrations Stimulation in Osage County, Oklahoma (open access)

Enhanced Oil Recovery with Downhole Vibrations Stimulation in Osage County, Oklahoma

This Technical Quarterly Report is for the reporting period July 1, 2001 to September 30, 2001. The report provides details of the work done on the project entitled ''Enhanced Oil Recovery with Downhole Vibration Stimulation in Osage County Oklahoma''. The project is divided into nine separate tasks. Several of the tasks are being worked on simultaneously, while other tasks are dependent on earlier tasks being completed. The vibration stimulation well is permitted as Well 111-W-27, section 8 T26N R6E Osage County Oklahoma. It was spud July 28, 2001 with Goober Drilling Rig No. 3. The well was drilled to 3090-feet cored, logged, cased and cemented. The Rig No.3 moved off August 6, 2001. Phillips Petroleum Co. has begun analyzing the cores recovered from the test well. Standard porosity, permeability and saturation measurements will be conducted. They will then begin the sonic stimulation core tests Calumet Oil Company, the operator of the NBU, has begun to collect both production and injection wells information to establish a baseline for the project in the pilot field test area. Green Country Submersible Pump Company, a subsidiary of Calumet Oil Company, will provide both the surface equipment and downhole tools to allow the Downhole Vibration …
Date: September 30, 2001
Creator: Brett, J. Ford & Westermark, Robert V.
Object Type: Report
System: The UNT Digital Library

[Event speaker dressed in a long black coat and cowboy hat: Lone Star Ride 2001 event photo]

Photograph of Scott Lloyd on the microphone speaking from the dance floor of Round-Up Saloon in Dallas. He appears wearing a black cowboy hat paired with black jeans, shirt, and a long dress coat with a red and blue ribbon pinned to the right shoulder.
Date: September 30, 2001
Creator: unknown
Object Type: Photograph
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, September 30, 2001 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, September 30, 2001

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: September 30, 2001
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Feasibility of Large-Scale Ocean CO2 Sequestration (open access)

Feasibility of Large-Scale Ocean CO2 Sequestration

Direct ocean injection of CO{sub 2} is one of several approaches under consideration to sequester carbon dioxide in order to stabilize atmospheric CO{sub 2} near 550 ppm (2X preindustrial CO{sub 2} levels). Without significant efforts to stabilize greenhouse gas emissions, the Earth is expected to experience extreme climate warming consequences associated with the projected high ({approx}3-4X preindustrial) atmospheric CO{sub 2} levels in the next 100 to 200 years. Research funded by DOE-Office of Fossil Energy under this award is based on the development of novel experimental methods by MBARI to deploy small quantities (5-45 l) of liquid CO{sub 2} in the deep-sea for the purposes of investigating the fundamental science underlying the concepts of ocean CO{sub 2} sequestration. This project is linked closely with studies funded by the Office of Science and the Monterey Bay Aquarium Research Institute (MBARI). The objectives of studies in marine chemistry funded by the Office of Fossil Energy and MBARI are to: (1) Determine the long term fate of CO{sub 2} hydrate in the deep-sea, (2) Investigate the geochemical changes in marine sediments and pore waters associated with CO{sub 2} disposal, and (3) Investigate the transfer of CO{sub 2} from the hydrate phase to the …
Date: September 30, 2001
Creator: Brewer, Peter & Barry, James
Object Type: Report
System: The UNT Digital Library