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1999 accomplishments report. Clean energy for the 21st century [USDOE Federal Energy Management Program]
None
Date:
February 1, 2000
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Acceptance Test Report for the Modular Automation System (MAS) Manufactured by Honeywell Inc.
This document details the performance of the acceptance test of the Honeywell MAS Control System for equipment to be installed in gloveboxes HA-20MB and HA-211 at a later date. Equipment that was anticipated included 6 stabilization furnaces, only three and their associated equipment were installed.
Date:
February 1, 2000
Creator:
Anderson, D. L.
Object Type:
Report
System:
The UNT Digital Library
ADVANCED DIRECT LIQUEFACTION CONCEPTS FOR PETC GENERIC UNITS
The results of Laboratory and Bench-Scale experiments and supporting technical and economic assessments conducted under DOE Contract No. DE-AC22-91PC91040 is reported for the period July 1, 1998 to September 30, 1998. This contract is with the University of kentucky Research Foundation, which supports work with the University of Kentucky Center for Applied Energy Researc, CONSOL, Inc., LDP Associates, and Hydrocarbon Technologies, Inc. This work involves the introduction into the basic two-stage liquefaction process several novel concepts, which include dispersed lower-cost catalysts, coal cleaning by oil agglomeration, and distillate hydrotreating and dewaxing. This project has been modified to include an investigation into the production of value added materials from coal using liquefaction based technologies.
Date:
February 1, 2000
Creator:
Berkovich, Adam J.
Object Type:
Report
System:
The UNT Digital Library
ADVANCED DIRECT LIQUEFACTION CONCEPTS FOR PETC GENERIC UNITS
The results of Laboratory and Bench-Scale experiments and supporting technical and economic assessments conducted under DOE Contract No. DE-AC22-91PC91040 is reported for the period July 1, 1998 to September 30, 1998. This contract is with the University of kentucky Research Foundation, which supports work with the University of Kentucky Center for Applied Energy Researc, CONSOL, Inc., LDP Associates, and Hydrocarbon Technologies, Inc. This work involves the introduction into the basic two-stage liquefaction process several novel concepts, which include dispersed lower-cost catalysts, coal cleaning by oil agglomeration, and distillate hydrotreating and dewaxing. This project has been modified to include an investigation into the production of value added materials from coal using liquefaction based technologies.
Date:
February 1, 2000
Creator:
Berkovich, Adam J.
Object Type:
Report
System:
The UNT Digital Library
ADVANCED DIRECT LIQUEFACTION CONCEPTS FOR PETC GENERIC UNITS
The results of Laboratory and Bench-Scale experiments and supporting technical and economic assessments conducted under DOE Contract No. DE-AC22-91PC91040 is reported for the period July 1, 1998 to September 30, 1998. This contract is with the University of kentucky Research Foundation, which supports work with the University of Kentucky Center for Applied Energy Researc, CONSOL, Inc., LDP Associates, and Hydrocarbon Technologies, Inc. This work involves the introduction into the basic two-stage liquefaction process several novel concepts, which include dispersed lower-cost catalysts, coal cleaning by oil agglomeration, and distillate hydrotreating and dewaxing. This project has been modified to include an investigation into the production of value added materials from coal using liquefaction based technologies.
Date:
February 1, 2000
Creator:
Berkovich, Adam J.
Object Type:
Report
System:
The UNT Digital Library
ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT ANNUAL REPORT TO THE U.S. DEPARTMENT OF ENERGY OCTOBER 1, 1998 THROUGH SEPTEMBER 30, 1999
OAK-B135 The General Atomics (GA) Advanced Fusion Technology program seeks to advance the knowledge base needed for next-generation fusion experiments, and ultimately for an economical and environmentally attractive fusion energy source. To achieve this objective, they carry out fusion systems design studies to evaluate the technologies and materials needed for next-step experiments and power plants, and they conduct research to develop basic and applied knowledge about these materials and technologies. GA's Advanced Fusion Technology program derives from, and draws on, the physics and engineering expertise built up by many years of experience in designing, building, and operating plasma physics experiments. The technology development activities take full advantage of the current DIII-D program and facility. The following sections summarize GA's FY99 work done in the areas of Fusion Power Plant Design Studies (Section 2), Advanced Liquid Plasma Facing Surfaces (Section 3), Advanced Power Extraction Study (Section 4), Next Step Fusion Design (Section 5), Plasma Interactive Materials (Section 6), Radiation Testing of Magnetic Coil (Section 7), Vanadium Component Demo (Section 8), RF Technology (Section 9) and Inertial Fusion Energy Target Supply System (Section 10). The work in these areas continues to address many of the issues that must be resolved for the …
Date:
February 1, 2000
Creator:
STAFF, PROJECT
Object Type:
Report
System:
The UNT Digital Library
Advanced microcharacterization of nickel-base superalloys
The purpose of this project was to characterize the microstructural and microchemical effects of a process revision on HAYNES{reg{underscore}sign} 242{trademark}, a polycrystalline Ni-base superalloy used principally for high temperature applications, such as seal and containment rings in gas turbine engines. The process revision from the current one-step heat treating cycle to a two-step heat treatment would result in savings of energy and ultimately cost to the consumer. However, the proposed process revision could give rise to unforeseen microstructural modifications, such as a change in the size distribution of the ordered particles responsible for alloy strength or the formation of additional phases, which could affect alloy properties and hence performance. Advanced microcharacterization methods that allow images of the microstructure to be acquired at length scales from one micrometer down to the atomic level were used to reveal the effect of the process revision on alloy microstructure. Energy filtered imaging was used to characterize the size distribution and morphology of ordered precipitates and other phases, as well as the partitioning behavior of major elements (Ni, Mo, Cr) among these phases. The compositions of individual ordered particles, including fine-scale compositional variations at precipitate-matrix interfaces, and solute segregation behavior at grain boundaries were characterized …
Date:
February 1, 2000
Creator:
Anderson, I. M.; Miller, M. K.; Pike, L. M. & Klarstrom, D. L.
Object Type:
Report
System:
The UNT Digital Library
Advanced process analysis for petroleum refining
This is a fact sheet on an advanced computer analysis system for petroleum refining written for the NICE3 Program.
Date:
February 1, 2000
Creator:
National Renewable Energy Laboratory (U.S.)
Object Type:
Book
System:
The UNT Digital Library
Adverse Drug Events: Substantial Problem but Magnitude Uncertain
Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed its report on adverse drug events (ADE), focusing on the: (1) different types and causes of ADEs; (2) evidence on the overall incidence and cost of ADEs in the United States; and (3) measures that have been proposed to reduce the number and severity of ADEs."
Date:
February 1, 2000
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Agile dry etching of compound semiconductors for science-based manufacturing using in-situ process control
In-situ optical diagnostics and ion beam diagnostics for plasma-etch and reactive-ion-beam etch (RIBE) tools have been developed and implemented on etch tools in the Compound Semiconductor Research Laboratory (CSRL). The optical diagnostics provide real-time end-point detection during plasma etching of complex thin-film layered structures that require precision etching to stop on a particular layer in the structure. The Monoetch real-time display and analysis program developed with this LDRD displays raw and filtered reflectance signals that enable an etch system operator to stop an etch at the desired depth within the desired layer. The ion beam diagnostics developed with this LDRD will permit routine analysis of critical ion-beam profile characteristics that determine etch uniformity and reproducibility on the RIBE tool.
Date:
February 1, 2000
Creator:
Ashby, Carol I.; Vawter, Gregory A.; Breiland, William G.; Bruskas, Larry A.; Woodworth, Joseph R. & Hebner, Gregory A.
Object Type:
Report
System:
The UNT Digital Library
Algorithm-dependent fault tolerance for distributed computing
Large-scale distributed systems assembled from commodity parts, like CPlant, have become common tools in the distributed computing world. Because of their size and diversity of parts, these systems are prone to failures. Applications that are being run on these systems have not been equipped to efficiently deal with failures, nor is there vendor support for fault tolerance. Thus, when a failure occurs, the application crashes. While most programmers make use of checkpoints to allow for restarting of their applications, this is cumbersome and incurs substantial overhead. In many cases, there are more efficient and more elegant ways in which to address failures. The goal of this project is to develop a software architecture for the detection of and recovery from faults in a cluster computing environment. The detection phase relies on the latest techniques developed in the fault tolerance community. Recovery is being addressed in an application-dependent manner, thus allowing the programmer to take advantage of algorithmic characteristics to reduce the overhead of fault tolerance. This architecture will allow large-scale applications to be more robust in high-performance computing environments that are comprised of clusters of commodity computers such as CPlant and SMP clusters.
Date:
February 1, 2000
Creator:
Hough, P. D.; Goldsby, M. e. & Walsh, E. J.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 100, No. 271, Ed. 1 Tuesday, February 1, 2000
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 1, 2000
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Ammonia Solubility in High Concentration Salt Solutions
Solubility data for ammonia in water and various dilute solutions are abundant in the literature. However, there is a noticeable lack of ammonia solubility data for high salt, basic solutions of various mixtures of salts including those found in many of the Hanford Washington underground waste tanks. As a result, models based on solubility data for dilute salt solutions have been used to extrapolate to high salt solutions. These significant extrapolations need to be checked against actual laboratory data. Some indirect vapor measurements have been made. A more direct approach is to determine the ratio of solubility of ammonia in water to its solubility in high salt solutions. In various experiments, pairs of solutions, one of which is water and the other a high salt solution, are allowed to come to equilibrium with a common ammonia vapor pressure. The ratio of concentrations of ammonia in the two solutions is equal to the ratio of the respective ammonia solubilities (Henry's Law constants) at a given temperature. This information can then be used to refine the models that predict vapor space compositions of ammonia. Ammonia at Hanford is of concern because of its toxicity in the environment and its contribution to the …
Date:
February 1, 2000
Creator:
HEDENGREN, D.C.
Object Type:
Article
System:
The UNT Digital Library
Annual Radiological Environmental Monitoring Program Report for the Three Mile Island, Unit 2, Independent Spent Fuel Storage Installation
This report presents the results of the 1999 Radiological Environmental Monitoring Program conducted in accordance with 10 CFR 72.44 for the Three Mile Island, Unit 2, Independent Spent Fuel Storage Installation. A description of the facility and the monitoring program is provided. The results of monitoring the two predominant radiation exposure pathways, potential airborne radioactivity releases and direct radiation exposure, indicate facility operation has not contributed to any increase in the estimated maximum potential dose commitment to the general public.
Date:
February 1, 2000
Creator:
Hall, G. G.
Object Type:
Report
System:
The UNT Digital Library
Annual report to Congress: Department of Energy activities relating to the Defense Nuclear Facilities Safety Board, Calendar Year 1999
This is the tenth Annual Report to the Congress describing Department of Energy activities in response to formal recommendations and other interactions with the Defense Nuclear Facilities Safety Board (Board). The Board, an independent executive-branch agency established in 1988, provides advice and recommendations to the Secretary of Energy regarding public health and safety issues at the Department's defense nuclear facilities. The Board also reviews and evaluates the content and implementation of health and safety standards, as well as other requirements, relating to the design, construction, operation, and decommissioning of the Department's defense nuclear facilities. During 1999, Departmental activities resulted in the closure of nine Board recommendations. In addition, the Department has completed all implementation plan milestones associated with three Board recommendations. One new Board recommendation was received and accepted by the Department in 1999, and a new implementation plan is being developed to address this recommendation. The Department has also made significant progress with a number of broad-based initiatives to improve safety. These include expanded implementation of integrated safety management at field sites, opening of a repository for long-term storage of transuranic wastes, and continued progress on stabilizing excess nuclear materials to achieve significant risk reduction.
Date:
February 1, 2000
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
APPROXIMATION ALGORITHMS FOR CLUSTERING TO MINIMIZE THE SUM OF DIAMETERS
We consider the problem of partitioning the nodes of a complete edge weighted graph into {kappa} clusters so as to minimize the sum of the diameters of the clusters. Since the problem is NP-complete, our focus is on the development of good approximation algorithms. When edge weights satisfy the triangle inequality, we present the first approximation algorithm for the problem. The approximation algorithm yields a solution that has no more than 10k clusters such the total diameter of these clusters is within a factor O(log (n/{kappa})) of the optimal value fork clusters, where n is the number of nodes in the complete graph. For any fixed {kappa}, we present an approximation algorithm that produces {kappa} clusters whose total diameter is at most twice the optimal value. When the distances are not required to satisfy the triangle inequality, we show that, unless P = NP, for any {rho} {ge} 1, there is no polynomial time approximation algorithm that can provide a performance guarantee of {rho} even when the number of clusters is fixed at 3. Other results obtained include a polynomial time algorithm for the problem when the underlying graph is a tree with edge weights.
Date:
February 1, 2000
Creator:
Kopp, S.; Mortveit, H.S. & Reidys, S.M.
Object Type:
Article
System:
The UNT Digital Library
Attributes and templates from active measurements with {sup 252}Cf
Active neutron interrogation is useful for the detection of shielded HEU and could also be used for Pu. In an active technique, fissile material is stimulated by an external neutron source to produce fission with the emanation of neutrons and gamma rays. The time distribution of particles leaving the fissile material is measured with respect to the source emission in a variety of ways. A variety of accelerator and radioactive sources can be used. Active interrogation of nuclear weapons/components can be used in two ways: template matching or attribute estimation. Template matching compares radiation signatures with known reference signatures and for treaty applications has the problem of authentication of the reference signatures along with storage and retrieval of templates. Attribute estimation determines, for example, the fissile mass from various features of the radiation signatures and does not require storage of radiation signatures but does require calibration, which can be repeated as necessary. A nuclear materials identification system (NMIS) has been in use at the Oak Ridge Y-12 Plant for verification of weapons components being received and in storage by template matching and has been used with calibrations for attribute (fissile mass) estimation for HEU metal. NMIS employs a {sup 252}Cf …
Date:
February 1, 2000
Creator:
Mihalczo, J.T. & Mattingly, J.K.
Object Type:
Report
System:
The UNT Digital Library
B and D semileptonic decays to light mesons
None
Date:
February 1, 2000
Creator:
Ryan, S. M.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 80, Ed. 1 Tuesday, February 1, 2000
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 1, 2000
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Benchmark of SCALE (SAS2H) isotopic predictions of depletion analyses for San Onofre PWR MOX fuel
The isotopic composition of mixed-oxide (MOX) fuel, fabricated with both uranium and plutonium, after discharge from reactors is of significant interest to the Fissile Materials Disposition Program. The validation of the SCALE (SAS2H) depletion code for use in the prediction of isotopic compositions of MOX fuel, similar to previous validation studies on uranium-only fueled reactors, has corresponding significance. The EEI-Westinghouse Plutonium Recycle Demonstration Program examined the use of MOX fuel in the San Onofre PWR, Unit 1, during cycles 2 and 3. Isotopic analyses of the MOX spent fuel were conducted on 13 actinides and {sup 148}Nd by either mass or alpha spectrometry. Six fuel pellet samples were taken from four different fuel pins of an irradiated MOX assembly. The measured actinide inventories from those samples has been used to benchmark SAS2H for MOX fuel applications. The average percentage differences in the code results compared with the measurement were {minus}0.9% for {sup 235}U and 5.2% for {sup 239}Pu. The differences for most of the isotopes were significantly larger than in the cases for uranium-only fueled reactors. In general, comparisons of code results with alpha spectrometer data had extreme differences, although the differences in the calculations compared with mass spectrometer analyses …
Date:
February 1, 2000
Creator:
Hermann, O.W.
Object Type:
Report
System:
The UNT Digital Library
Bioinformatics in the information age
There is a well-known story about the blind man examining the elephant: the part of the elephant examined determines his perception of the whole beast. Perhaps bioinformatics--the shotgun marriage between biology and mathematics, computer science, and engineering--is like an elephant that occupies a large chair in the scientific living room. Given the demand for and shortage of researchers with the computer skills to handle large volumes of biological data, where exactly does the bioinformatics elephant sit? There are probably many biologists who feel that a major product of this bioinformatics elephant is large piles of waste material. If you have tried to plow through Web sites and software packages in search of a specific tool for analyzing and collating large amounts of research data, you may well feel the same way. But there has been progress with major initiatives to develop more computing power, educate biologists about computers, increase funding, and set standards. For our purposes, bioinformatics is not simply a biologically inclined rehash of information theory (1) nor is it a hodgepodge of computer science techniques for building, updating, and accessing biological data. Rather bioinformatics incorporates both of these capabilities into a broad interdisciplinary science that involves both conceptual …
Date:
February 1, 2000
Creator:
Spengler, Sylvia J.
Object Type:
Article
System:
The UNT Digital Library
Blenddown Monitoring System for HEU transparency
The High Enriched Uranium (HEU) Purchase Agreement between the US and the Russian Federation (RF) provides for the monitoring of the blending of highly enriched uranium (500 metric tons) with low enrichment blend stock uranium (LEU) to produce commercial reactor-grade material for use in US reactors. A Blend Down Monitoring System (BDMS) has been developed by the US Department of Energy (DOE) to provide unattended monitoring of the HEU blending operations at the Russian facilities. It is configured to monitor the mass flow rate developed by the Oak Ridge National Laboratory (ORNL) and {sup 235}U isotopic enrichment developed by Los Alamos National Laboratory (LANL) of gaseous UF{sub 6} in three separate flow streams at a blending tee.
Date:
February 1, 2000
Creator:
Mihalczo, J. T.
Object Type:
Report
System:
The UNT Digital Library
The Boerne Star (Boerne, Tex.), Vol. 95, No. 9, Ed. 1 Tuesday, February 1, 2000
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
February 1, 2000
Creator:
Keasling, Edna & Fierro, Jennifer
Object Type:
Newspaper
System:
The Portal to Texas History
Brady Herald (Brady, Tex.), Vol. 57, No. 12, Ed. 1 Tuesday, February 1, 2000
Weekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
February 1, 2000
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History