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Energy Recovery Linac: 5 Cell 704 MHz SRF Cavity
N/A
Date:
January 1, 2010
Creator:
A., Burrill
System:
The UNT Digital Library
Energy Recovery Linac: SRF Electron Gun
N/A
Date:
January 1, 2010
Creator:
A., Burrill
System:
The UNT Digital Library
Energy Recovery Linac: Magnetic Measurement of the ERL Magnets
N/A
Date:
January 1, 2010
Creator:
A., Jain
System:
The UNT Digital Library
MELT RATE ENHANCEMENT FOR HIGH ALUMINUM HLW (HIGH LEVEL WASTE) GLASS FORMULATION FINAL REPORT 08R1360-1
This report describes the development and testing of new glass formulations for high aluminum waste streams that achieve high waste loadings while maintaining high processing rates. The testing was based on the compositions of Hanford High Level Waste (HLW) with limiting concentrations of aluminum specified by the Office of River Protection (ORP). The testing identified glass formulations that optimize waste loading and waste processing rate while meeting all processing and product quality requirements. The work included preparation and characterization of crucible melts and small scale melt rate screening tests. The results were used to select compositions for subsequent testing in a DuraMelter 100 (DM100) system. These tests were used to determine processing rates for the selected formulations as well as to examine the effects of increased glass processing temperature, and the form of aluminum in the waste simulant. Finally, one of the formulations was selected for large-scale confirmatory testing on the HLW Pilot Melter (DM1200), which is a one third scale prototype of the Hanford Tank Waste Treatment and Immobilization Plant (WTP) HLW melter and off-gas treatment system. This work builds on previous work performed at the Vitreous State Laboratory (VSL) for Department of Energy (DOE) to increase waste loading …
Date:
January 4, 2010
Creator:
AA, KRUGER; KS, MATLACK; W, KOT; IL, PEGG; I, JOSEPH; T, BARDAKCI et al.
System:
The UNT Digital Library
Final Report-Confirmatory Survey Results for the ABB Combustion Engineering Site, Windsor, Connecticut; Revision 1 (DCN 5158-SR-02-1) (Docket No. 030-03754; RFTA No. 12-003)
The objectives of the confirmatory activities were to provide independent contractor field data reviews and to generate independent radiological data for use by the NRC in evaluating the adequacy and accuracy of the contractor�s procedures and FSS results. ORAU reviewed ABB CE�s decommissioning plan, final status survey plan, and the applicable soil DCGLs, which were developed based on an NRC-approved radiation dose assessment. The surveys included gamma surface scans, gamma direct measurements, and soil sampling.
Date:
January 28, 2013
Creator:
ADAMS, WADE C
System:
The UNT Digital Library
Impact of Large Scale Energy Efficiency Programs On Consumer Tariffs and Utility Finances in India
Large-scale EE programs would modestly increase tariffs but reduce consumers' electricity bills significantly. However, the primary benefit of EE programs is a significant reduction in power shortages, which might make these programs politically acceptable even if tariffs increase. To increase political support, utilities could pursue programs that would result in minimal tariff increases. This can be achieved in four ways: (a) focus only on low-cost programs (such as replacing electric water heaters with gas water heaters); (b) sell power conserved through the EE program to the market at a price higher than the cost of peak power purchase; (c) focus on programs where a partial utility subsidy of incremental capital cost might work and (d) increase the number of participant consumers by offering a basket of EE programs to fit all consumer subcategories and tariff tiers. Large scale EE programs can result in consistently negative cash flows and significantly erode the utility's overall profitability. In case the utility is facing shortages, the cash flow is very sensitive to the marginal tariff of the unmet demand. This will have an important bearing on the choice of EE programs in Indian states where low-paying rural and agricultural consumers form the majority of …
Date:
January 20, 2011
Creator:
Abhyankar, Nikit & Phadke, Amol
System:
The UNT Digital Library
Fundamental Studies of Recombinant Hydrogenases
This research addressed the long term goals of understanding the assembly and organization of hydrogenase enzymes, of reducing them in size and complexity, of determining structure/function relationships, including energy conservation via charge separation across membranes, and in screening for novel H2 catalysts. A key overall goal of the proposed research was to define and characterize minimal hydrogenases that are produced in high yields and are oxygen-resistant. Remarkably, in spite of decades of research carried out on hydrogenases, it is not possible to readily manipulate or design the enzyme using molecular biology approaches since a recombinant form produced in a suitable host is not available. Such resources are essential if we are to understand what constitutes a “minimal” hydrogenase and design such catalysts with certain properties, such as resistance to oxygen, extreme stability and specificity for a given electron donor. The model system for our studies is Pyrococcus furiosus, a hyperthermophile that grows optimally at 100°C, which contains three different nickel-iron [NiFe-] containing hydrogenases. Hydrogenases I and II are cytoplasmic while the other, MBH, is an integral membrane protein that functions to both evolve H2 and pump protons. Three important breakthroughs were made during the funding period with P. furiosus soluble …
Date:
January 25, 2014
Creator:
Adams, Michael W
System:
The UNT Digital Library
LETTER REPORT. INDEPENDENT CONFIRMATORY SURVEY RESULTS OF SOILS ASSOCIATED WITH THE ARGYLE STREET SEWER LINE AT THE UNITED NUCLEAR CORPORATION NAVAL PRODUCTS SITE, NEW HAVEN, CONNECTICUT
Oak Ridge Institute for Science and Education (ORISE) personnel visited the United Nuclear Corporation (UNC) Naval Products site on three separate occasions during the months of October and November 2011. The purpose of these visits was to conduct confirmatory surveys of soils associated with the Argyle Street sewer line that was being removed. Soil samples were collected from six different, judgmentally determined locations in the Argyle Street sewer trench. In addition to the six soil samples collected by ORISE, four replicate soil samples were collected by Cabrera Services, Inc. (CSI) for analysis by the ORISE laboratory. Replicate samples S0010 and S0011 were final status survey (FSS) bias samples; S0012 was an FSS systematic sample; and S0015 was a waste characterization sample. Six soil samples were also collected for background determination. Uranium-235 and uranium-238 concentrations were determined via gamma spectroscopy; the spectra were also reviewed for other identifiable photopeaks. Radionuclide concentrations for these soil samples are provided. In addition to the replicate samples and the samples collected by ORISE, CSI submitted three soil samples for inter-laboratory comparison analyses. One sample was from the background reference area, one was from waste characterization efforts (material inside the sewer line), and one was a …
Date:
January 24, 2012
Creator:
Adams, Wade C.
System:
The UNT Digital Library
Laboratory Evaporation Testing Of Hanford Waste Treatment Plant Low Activity Waste Off-Gas Condensate Simulant
The Hanford Waste Treatment and Immobilization Plant (WTP) Low Activity Waste (LAW) vitrification facility will generate an aqueous condensate recycle stream, LAW Off-Gas Condensate, from the off-gas system. The baseline plan for disposition of this stream is to send it to the WTP Pretreatment Facility, where it will be blended with LAW, concentrated by evaporation and recycled to the LAW vitrification facility again. Alternate disposition of this stream would eliminate recycling of problematic components, and would enable de-coupled operation of the LAW melter and the Pretreatment Facilities. Eliminating this stream from recycling within WTP would also decrease the LAW vitrification mission duration and quantity of canistered glass waste forms. This LAW Off-Gas Condensate stream contains components that are volatile at melter temperatures and are problematic for the glass waste form. Because this stream recycles within WTP, these components accumulate in the Condensate stream, exacerbating their impact on the number of LAW glass containers that must be produced. Approximately 32% of the sodium in Supplemental LAW comes from glass formers used to make the extra glass to dilute the halides to be within acceptable concentration ranges in the LAW glass. Diverting the stream reduces the halides in the recycled Condensate and …
Date:
January 27, 2014
Creator:
Adamson, Duane J.; Nash, Charles A.; McCabe, Daniel J.; Crawford, Charles L. & Wilmarth, William R.
System:
The UNT Digital Library
Lebanon: Background and U.S. Relations
This report provides an overview of Lebanese politics, recent events in Lebanon, and current issues in U.S.-Lebanon relations.
Date:
January 19, 2011
Creator:
Addis, Casey L.
System:
The UNT Digital Library
U.S. Security Assistance to Lebanon
This report discusses key issues facing U.S. policy makers and members of Congress when considering U.S. security assistance in the context of U.S. policy toward Lebanon. These key issues include assessing the effectiveness of U.S. assistance programs, assessing overall U.S. policy toward Lebanon, and managing relations with other external actors.
Date:
January 19, 2011
Creator:
Addis, Casey L.
System:
The UNT Digital Library
Hezbollah: Background and Issues for Congress
Report that discusses Lebanon's Hezbollah, a Shiite Islamist militia, political party, social welfare organization, and U. S. State Department-designated terrorist organization. The report also discusses recent Hezbollah-related conflicts, Hezbollah's relationship with other Lebanese political parties, and U. S. policy regarding Hezbollah.
Date:
January 3, 2011
Creator:
Addis, Casey L. & Blanchard, Christopher M.
System:
The UNT Digital Library
Iran: Regional Perspectives and U.S. Policy
This report provides a description of Iran's neighbors' policies and interests, options for Congressional consideration, and an analysis of potential regional implications.
Date:
January 13, 2010
Creator:
Addis, Casey L.; Blanchard, Christopher M.; Katzman, Kenneth; Migdalovitz, Carol; Nichol, Jim; Sharp, Jeremy M. et al.
System:
The UNT Digital Library
The Middle East: Selected Key Issues and Options for the 112th Congress
This report provides an overview of key issues, relating to the Middle East including the war in Afghanistan, terrorism, foreign assistance, democracy promotion, a summary of past congressional action on these issues, and options for congressional consideration during the 112th Congress.
Date:
January 3, 2011
Creator:
Addis, Casey L.; Blanchard, Christopher M.; Katzman, Kenneth; Sharp, Jeremy M. & Zanotti, Jim
System:
The UNT Digital Library
Southwestern Regional Partnership For Carbon Sequestration (Phase 2) Pump Canyon CO2- ECBM/Sequestration Demonstration, San Juan Basin, New Mexico
Within the Southwest Regional Partnership on Carbon Sequestration (SWP), three demonstrations of geologic CO{sub 2} sequestration are being performed -- one in an oilfield (the SACROC Unit in the Permian basin of west Texas), one in a deep, unmineable coalbed (the Pump Canyon site in the San Juan basin of northern New Mexico), and one in a deep, saline reservoir (underlying the Aneth oilfield in the Paradox basin of southeast Utah). The Pump Canyon CO{sub 2}-enhanced coalbed methane (CO{sub 2}/ECBM) sequestration demonstration project plans to demonstrate the effectiveness of CO{sub 2} sequestration in deep, unmineable coal seams via a small-scale geologic sequestration project. The site is located in San Juan County, northern New Mexico, just within the limits of the high-permeability fairway of prolific coalbed methane production. The study area for the SWP project consists of 31 coalbed methane production wells located in a nine section area. CO{sub 2} was injected continuously for a year and different monitoring, verification and accounting (MVA) techniques were implemented to track the CO{sub 2} movement inside and outside the reservoir. Some of the MVA methods include continuous measurement of injection volumes, pressures and temperatures within the injection well, coalbed methane production rates, pressures and …
Date:
January 31, 2010
Creator:
Advanced Resources International
System:
The UNT Digital Library
Purdue Solar Energy Utilization Laboratory
The objective of this project is to establish and set-up a laboratory that will facilitate research and development of new low-cost and high-efficiency solar energy utilization technologies at Purdue University. The outcome will help spur the creation of solar energy start-up companies and eventually a solar energy industry in Indiana that can help fulfill the growing national demand for solar energy.
Date:
January 21, 2014
Creator:
Agrawal, Rakesh
System:
The UNT Digital Library
Development of a Portable Muon Witness System
Since understanding and quantifying cosmic ray induced radioactive backgrounds in copper and germanium are important to the MAJORANA DEMONSTRATOR, methods are needed for monitoring the levels of such backgrounds produced in materials being transported and processed for the experiment. This report focuses on work conducted at Pacific Northwest National Laboratory to develop a muon witness system as a one way of monitoring induced activities. The operational goal of this apparatus is to characterize cosmic ray exposure of materials. The cosmic ray flux at the Earth’s surface is composed of several types of particles, including neutrons, muons, gamma rays and protons. These particles induce nuclear reactions, generating isotopes that contribute to the radiological background. Underground, the main mechanism of activation is by muon produced spallation neutrons since the hadron component of cosmic rays is removed at depths greater than a few tens of meters. This is a sub-dominant contributor above ground, but muons become predominant in underground experiments. For low-background experiments cosmogenic production of certain isotopes, such as 68Ge and 60Co, must be accounted for in the background budgets. Muons act as minimum ionizing particles, depositing a fixed amount of energy per unit length in a material, and have a very …
Date:
January 1, 2011
Creator:
Aguayo Navarrete, Estanislao; Kouzes, Richard T. & Orrell, John L.
System:
The UNT Digital Library
Fate and Effects of Barium and Radium-Rich Fluid Emissions of Hydrocarbon Seeps on the Benthic Habitats of the Gulf of Mexico Offshore Louisiana
An analysis of how barium and radium-laced fluid seeps affect the climate and habitats of the Gulf of Mexico offshore Louisiana.
Date:
January 2011
Creator:
Aharon, Paul; Gent, Dan Van; Fu, Baoshun & Scott, L. Max
System:
The UNT Digital Library
Globalization, Worker Insecurity, and Policy Approaches
This report discusses the trends driving global economic integration, sources of worker insecurity and policy approaches. There appears to be a range of views on the merits of each of these policy approaches and the extent to which they can be designed and implemented in a way that would reduce worker insecurity without undermining the benefits of globalization.
Date:
January 20, 2010
Creator:
Ahearn, Raymond J.
System:
The UNT Digital Library
International Trade and Finance: Key Policy Issues for the 112th Congress
Report concerning a variety of issues faced by the 112th Congress. Topics include trade negotiations with South Korea, Panama, Colombia, and China, export controls and sanctions, and international financial institutions.
Date:
January 21, 2011
Creator:
Ahearn, Raymond J.
System:
The UNT Digital Library
International Trade and Finance: Key Policy Issues for the 112th Congress
This report highlights major international trade and finance issues Congress may address this year.
Date:
January 7, 2011
Creator:
Ahearn, Raymond J.
System:
The UNT Digital Library
International Trade and Finance: Key Policy Issues for the 112th Congress
The 112th Congress, in both its legislative and oversight capacities, faces numerous international trade and finance issues. In addition to the broader congressional oversight of the economic and political context of the current U.S. participation in the global economy, this report highlights major international trade and finance issues Congress may address this year and next.
Date:
January 11, 2011
Creator:
Ahearn, Raymond J.
System:
The UNT Digital Library
International Trade and Finance: Key Policy Issues for the 112th Congress
This report examines the trade relations between the United States, the European Union, and China.
Date:
January 7, 2011
Creator:
Ahearn, Raymond J.
System:
The UNT Digital Library
Trade Primer: Qs and As on Trade Concepts, Performance, and Policy
The 112th Congress has a full legislative and oversight agenda on international trade. The agenda may include considering legislation to implement pending free trade agreements with Panama, South Korea, and Colombia, enhanced enforcement of U.S. trade agreements, as well as oversight of the World Trade Organization's Doha Round and trade relations with China. This report provides information and context for many of these topics. The report is divided into four sections in a question-and-answer format: trade concepts, U.S. trade performance, formulation of U.S. trade policy, and trade and investment issues.
Date:
January 5, 2011
Creator:
Ahearn, Raymond J.
System:
The UNT Digital Library