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9
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273
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210
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15
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Degree Department
Country
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Year
Month
Day
Department of Energy: Office of Environmental Management's and Defense Programs' Fiscal Year 2000 Budget Request
Correspondence issued by the General Accounting Office with an abstract that begins "GAO updated its previous report on the Department of Energy's (DOE) fiscal year (FY) 2000 budget request, focusing on: (1) selected projects and activities by the Office of Environmental Management in which part or all of the FY 2000 budget request or budget authority from previous years is not needed; and (2) GAO's analysis of Environmental Management's and Defense Programs' carryover funds from prior years to determine if funds are available that could be used to reduce DOE's FY 2000 budget request."
Date:
July 30, 1999
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Development Studies for a Novel Wet Oxidation Process
DETOX is a catalyzed wet oxidation process that destroys organic materials in an acidic water solution of iron at 373 to 473 K. The solution can be used repeatedly to destroy great amounts of organic materials. Since the process is conducted in a contained vessel, air emissions from the process can be well controlled. The solution is also capable of dissolving and concentrating many heavy and radioactive metals for eventual stabilization and disposal. The Phase III effort for this project is fabrication, assembly, and installation of the DETOX demonstration unit, preparation of documentation and training to meet site requirements for operation, followed by system run-in and shakedown testing of the unit prior to demonstration testing. The Title III design was completed and the unit was fabricated according to standards set forth by OSHA, EPA, the American Petroleum Institute (i.e., chemical and petroleum industry standards), and the ASME B-313 Piping Code requirements as agreed to in preliminary design meetings with primary stakeholders. The unit was assembled in three modules and two trailers and then shipped to the TNX facility at the Savannah River Site in September and october of 1996. On-going site integration tasks were address while delays in installation arose …
Date:
September 30, 1999
Creator:
Research, Delphi
Object Type:
Report
System:
The UNT Digital Library
Calculation of drift seepage for alternative emplacementdesigns
The calculations presented in this report are performed to obtain seepage rates into drift and boreholes for two alternative designs of drift and waste emplacement at Yucca Mountain. The two designs are defined according to the Scope of Work 14012021M1, activity 399621, drafted October 6, 1998, and further refined in a conference telephone call on October 13, 1998, between Mark Balady, Jim Blink, Rob Howard and Chin-Fu Tsang. The 2 designs considered are: (1) Design A--Horizontal boreholes 1.0 m in diameter on both sides of the drift, with each borehole 8 m long and inclined to the drift axis by 30 degrees. The pillar between boreholes, measured parallel to the drift axis, is 3.3 m. In the current calculations, a simplified model of an isolated horizontal borehole 8 m long will be simulated. The horizontal borehole will be located in a heterogeneous fracture continuum representing the repository layer. Three different realizations will be taken from the heterogeneous field, representing three different locations in the rock. Seepage for each realization is calculated as a function of the percolation flux. Design B--Vertical boreholes, 1.0 m in diameter and 8.0 m deep, drilled from the bottom of an excavated 8.0 m diameter drift. …
Date:
July 30, 1999
Creator:
Li, Guomin; Tsang, Chin-Fu & Birkholzer, Jens
Object Type:
Report
System:
The UNT Digital Library
AXIAL SOURCE PROFILE EFFECT ON WASTE PACKAGE TRANSPORTER SHIELDING
The purpose of this scoping calculation is to support preliminary design of the Waste Package (WP) transporter radiation shield configuration. Spent Nuclear Fuel (SNF) is highly radioactive and site personnel must be protected during the period that the WPs are emplaced. Personnel protection is accomplished via a heavily shielded WP transporter that moves the waste from the surface to the emplacement drift. All previous WP transporter shielding calculations have assumed a Design Basis Fuel (DBF) in which the fuel burnup is uniform (e.g. Ref. 7.3, Ref. 7.4, and Ref. 7.12). In reality, SNF burnup varies significantly from one end of the fuel assembly to the other. Since source strengths are dependent upon fuel burnup, a model which varies the fuel burnup along the assembly axis will produce a more accurate depiction of the radiation field surrounding the WP transporter. The objective of this calculation is to determine the need for using the actual axial profile, as opposed to the uniform burnup assumption, in the WP transporter shield design. The scope of the calculation is as follows: (1) Determine the impact of axial source term variation on WP transporter contact dose rates. (2) Determine appropriate shielding modifications to account for expected …
Date:
June 30, 1999
Creator:
Nielsen, A.
Object Type:
Report
System:
The UNT Digital Library
Delaware Basin Monitoring Annual Report
The Delaware Basin Drilling Surveillance Program (DBDSP) is designed to monitor drilling activities in the vicinity of the Waste Isolation Pilot Plant (WIPP). This program is based on Environmental Protection Agency (EPA) requirements. The EPA environmental standards for the management and disposal of transuranic (TRU) radioactive waste are codified in 40 CFR Part 191 (EPA 1993). Subparts B and C of the standard address the disposal of radioactive waste. The standard requires the Department of Energy (DOE) to demonstrate the expected performance of the disposal system using a probabilistic risk assessment or performance assessment (PA). This PA must show that the expected repository performance will not release radioactive material above limits set by the EPA's standard. This assessment must include the consideration of inadvertent drilling into the repository at some future time.
Date:
September 30, 1999
Creator:
Services, Washington Regulatory and Environmental
Object Type:
Report
System:
The UNT Digital Library
Mannford Eagle (Mannford, Okla.), Vol. 18, No. 18, Ed. 1 Wednesday, June 30, 1999
Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 30, 1999
Creator:
Retherford, Bill R.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mannford Star (Mannford, Okla.), Vol. 5, No. 43, Ed. 1 Wednesday, June 30, 1999
Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 30, 1999
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Cherokeean/Herald (Rusk, Tex.), Vol. 150, No. 32, Ed. 1 Thursday, September 30, 1999
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
September 30, 1999
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
Cherokeean/Herald (Rusk, Tex.), Vol. 150, No. 45, Ed. 1 Thursday, December 30, 1999
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
December 30, 1999
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
[Día de los Muertos Exhibition]
Photograph of the Día de los Muertos exhibition held at the Mexic-Arte Museum in Austin, Texas on October 30th, 1999. Patrons mill around the exhibit. Many wear costumes and masks. Several carry beverages. Colorful platforms on the left are decorated with yellow and orange garlands. Black and white paintings are hung on one wall; colorful paintings are hung on the farthest wall, which is green.
Date:
October 30, 1999
Creator:
Mexic-Arte Museum (Austin, Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[Herlinda Zamora and Unnamed Person]
Photograph of the Día de los Muertos exhibition held at the Mexic-Arte Museum in Austin, Texas on October 30th, 1999. An unnamed woman stands on the left wearing a yellow mask, red ribbons in her hair, a black blouse, and long red skirt. Herlinda Zamora, right, wears blue high waisted trousers with white embroidery, a coordinating jacket, and white blouse. Colorful paintings are hung on a green wall behind them, most of which feature women. One painting features a cactus. Flowers, fruits, and candles decorate teal platforms on the floor.
Date:
October 30, 1999
Creator:
Mexic-Arte Museum (Austin, Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[Día de los Muertos Parade]
Photograph of the Día de los Muertos parade held by the Mexic-Arte Museum in Austin, Texas. The parade occurred in downtown Austin on October 30th, 1999. Several children in the foreground wear masks and face makeup. Individuals hold up poles from which large paper mache puppets are balanced. One puppet, left, is a brown bird. The other puppet, right, is a skeleton wearing a red hat and blue vest.
Date:
October 30, 1999
Creator:
Mexic-Arte Museum (Austin, Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
[Terry Tannert and Students]
Photograph of Terry Tannert and students at Un Michoacano Universal, a retrospective by Adolfo Mexiac held at the Mexic-Arte Museum in Austin, Texas. Tannert, center, holds an exhibition guide for the camera. She wears a dark floral blouse, black trousers, and glasses. The students mill around the exhibit. Most wear jeans and tennis shoes. Several look at the camera. Black and white paintings are hung on the walls of the exhibit.
Date:
October 30, 1999
Creator:
Mexic-Arte Museum (Austin, Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
Texas Attorney General Opinion: JC-164
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John Cornyn, regarding a legal question submitted for clarification: Whether the Railroad Commission’s regulatory definition of “unacceptable unsafe location” is inconsistent with the Texas Aggregate Quarry and Pit Act, chapter 133 of the Natural Resources Code, to the extent the rule includes any pit within 200 feet of a roadway edge, and related questions (RQ-0072-JC)
Date:
December 30, 1999
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: JC-101
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John Cornyn, regarding a legal question submitted for clarification: Constitutionality of an 1891 special law that purported to disincorporate the City of San Elizario.
Date:
August 30, 1999
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Slovenia: Country Background Report
This report provides background information on Slovenia who seeks membership in the European Union and NATO and is considered to be among the top candidates currently aspiring to join each organizations.
Date:
November 30, 1999
Creator:
Kim, Julie
Object Type:
Report
System:
The UNT Digital Library
Development of Nanoscale Ceramics for Advanced Power Applications
Bulk structures of unstabilized ZrO{sub 2-x}, with x in the range of 0 {<=} x {<=} 0.44, at ambient pressure have been found to exist in three different structures. (monoclinic, tetragonal and cubic.). At ambient temperature and elevated pressures above 3.5 GPa, unstabilized zirconia at these same compositions is found as a fourth phase, the orthorhombic phase. Work done in this project has demonstrated that nanoscale zirconia particles containing the orthorhombic phase in addition to amorphous material can be produced through solgel methods. Extensive characterization of this material including recent high temperature x-ray diffraction work has indicated that the structure of the synthesized zirconia appears to be linked to the oxygen vacancy population in the material, and that water appears to be a critical factor in determining the type of material formed during synthesis. These results suggest that surface energy alone is not the controlling factor in determining crystal phase.
Date:
September 30, 1999
Creator:
Leffler, Miriam & Helble, Joseph
Object Type:
Report
System:
The UNT Digital Library
Fiber Tracking Cylinder Nesting
The fiber tracker consists of 8 concentric carbon fiber cylinders of varying diameters, from 399mm to 1032.2mm and two different lengths. 1.66 and 2.52 meters. Each completed cylinder is covered over the entire o.d. with scintillating fiber ribbons with a connector on each ribbon. These ribbons are axial (parallel to the beam line) at one end and stereo (at 3 deg. to the beam line) at the other. The ribbon connectors have dowel pins which are used to match with the connectors on the wave guide ribbons. These dowel pins are also used during the nesting operation, locating and positioning measurements. The nesting operation is the insertion of one cylinder into another, aligning them with one another and fastening them together into a homogeneous assembly. For ease of assembly. the nesting operation is accomplished working from largest diameter to smallest. Although the completed assembly of all 8 cylinders glued and bolted together is very stiff. individual cylinders are relatively flexible. Therefore. during this operation, No.8 must be supported in a manner which maintains its integrity and yet allows the insertion of No.7. This is accomplished by essentially building a set of dummy end plates which replicate a No.9 cylinder. These …
Date:
March 30, 1999
Creator:
Stredde, H.
Object Type:
Report
System:
The UNT Digital Library
325 Facility Special Case Waste Disposition Alternatives Analysis
This report addresses the disposition strategy relating to special-case waste (SCW) managed by the Pacific Northwest National Laboratory (PNNL) on the Hanford Site. All of PNNL’s SCW currently resides in the 325 Facility of Hanford’s 300 Area. This facility is operated for the U.S. Department of Energy, Richland Operations Office (RL), by PNNL. Due to the high activity levels of the waste and difficulties in characterizing, classifying, and packaging it to meet the Hanford Site Solid Waste Acceptance Criteria (DOE 1998a), the materials were listed as SCW under the Hanford Facility Agreement and Consent Order (Ecology et.al.). The Hanford Facility Agreement and Consent Order is also known as the Tri-Party Agreement.
Date:
August 30, 1999
Creator:
Mccoy, Michael W.
Object Type:
Report
System:
The UNT Digital Library
Enhancement of Equilibrium Shift in Dehydrogenation Reactions Using a Novel Membrane Reactor Semi-Annual Report: October 1998-February 1999
Using electroless deposition of palladium thin-films on a microporous ceramic substrate, we developed a hydrogen-selective palladium-ceramic composite membrane. The new membrane has significantly higher permeability and selectivity for hydrogen than many of the commercially available dense-metallic membrane. The hydrogen permeability of the new membrane increases with increasing temperature. These properties make it an ideal candidate for use in membrane reactors to study dehydrogenation reactions by equilibrium shift. To investigate the usefulness of the new membrane in membrane reactor-separator configuration, a model for studying dehydrogenation of cyclohexane by equilibrium in a membrane reactor is developed. Radial diffusion is considered to account for the concentration gradient in the radial direction due to permeation through the membrane. The model is investigated with and without the reaction. In the non-reaction case, a mixture of argon, benzene, cyclohexane, and hydrogen is used in the reaction side and argon is used in the separation side. In the case of dehydrogenation reaction, the feed stream to the reaction side contained hydrogen and argon while in the separation side argon is used as sweep gas. Equilibrium conversion for dehydrogenation of cyclohexane is 18.7%. Present study shows that 100% conversion can be achieved by equilibrium shift using Pd-Ceramic membrane …
Date:
April 30, 1999
Creator:
Ilias, Shamsuddin & King, Franklin G.
Object Type:
Report
System:
The UNT Digital Library
Second Generation Advanced Reburning for High Efficiency NOx Control
This project is designed to develop a family of novel NO{sub x} control technologies, called Second Generation Advanced Reburning which has the potential to achieve 90+ NO{sub x} control in coal fired boilers at a significantly lower cost than Selective Catalytic Reduction. The seventh reporting period in Phase II (April 1-June 30, 1999) included experimental activities and combined chemistry-mixing modeling on advanced gas reburning. The goal of combustion tests was to determine the efficiency of advanced reburning using coal as the reburning fuel. Tests were conducted in Boiler Simulator Facility (BSF). Several coals were tested. The modeling effort was focused on the description of N-agent injection along with overfire air. Modeling identified process parameters that can be used to optimize the AR-Lean process.
Date:
June 30, 1999
Creator:
Zamansky, Vladimir M.; Maly, Peter M. & Lissianski, Vitali V.
Object Type:
Report
System:
The UNT Digital Library
A Characterization and Evaluation of Coal Liquefaction Process Streams. Results of Inspection Tests on Nine Coal-Derived Distillation Cuts in the Jet Fuel Boiling Range
This report describes the assessment of the physical and chemical properties of the jet fuel (180-300 C) distillation fraction of nine direct coal liquefaction products and compares those properties to the corresponding specifications for aviation turbine fuels. These crude coal liquids were compared with finished fuel specifications specifically to learn what the refining requirements for these crudes will be to make them into finished fuels. The properties of the jet fuel fractions were shown in this work to require extensive hydrotreating to meet Jet A-1 specifications. However, these materials have a number of desirable qualities as feedstocks for the production of high energy-density jet fuels.
Date:
December 30, 1999
Creator:
Brandes, S. D. & Winschel, R. A.
Object Type:
Report
System:
The UNT Digital Library
Engineering Development of Coal-Fired High-Performance Power Systems Progress Report: July-September 1999
None
Date:
September 30, 1999
Creator:
Tsuo, York
Object Type:
Report
System:
The UNT Digital Library
Full Scale Regenerable HEPA Filter System Design
None
Date:
October 30, 1999
Creator:
Ramons, Gil
Object Type:
Report
System:
The UNT Digital Library