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421 Matching Results
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Electric Utility Regulatory Reform: Issues for the 109th Congress
This report discusses regulation issues affecting electricity today. Comprehensive electricity legislation may involve several components: Public Utility Holding Company Act (PUHCA) reform, PURPA's requirement that utilities purchase power from qualifying facilities (QFs), and reliability.
Date:
April 21, 2005
Creator:
Abel, Amy
Object Type:
Report
System:
The UNT Digital Library
Separation of Carbon Dioxide from Flue Gas Using Ion Pumping
We are developing a new way of separating carbon dioxide from flue gas based on ionic pumping of carbonate ions dissolved in water. Instead of relying on large temperature or pressure changes to remove carbon dioxide from solvent used to absorb it from flue gas, the ion pump increases the concentration of dissolved carbonate ion in solution. This increases the overlying vapor pressure of carbon dioxide gas, which can be removed from the downstream side of the ion pump as a nearly pure gas. This novel approach to increasing the concentration of the extracted gas permits new approaches to treating flue gas. The slightly basic water used as the extraction medium is impervious to trace acid gases that destroy existing solvents, and no pre-separation is necessary. The simple, robust nature of the process lends itself to small separation plants. Although the energy cost of the ion pump is significant, we anticipate that it will be compete favorably with the current 35% energy penalty of chemical stripping systems in use at power plants. There is the distinct possibility that this simple method could be significantly more efficient than existing processes.
Date:
April 21, 2006
Creator:
Aines, R.; Bourcier, W. L. & Johnson, M. R.
Object Type:
Article
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 15, Ed. 1 Thursday, April 21, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
April 21, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Waste Package Related Impacts of Plutonium Disposition Waste Form Geologic Repository
This report provides a comprehensive summary of the waste package (WP) related impacts of the Plutonium Disposition waste forms that are being developed and evaluated by the Office of Fissile Materials Disposition of the DOE. These waste forms are of two distinct types. One type is mixed oxide spent nuclear fuel (MOX SNF), which would be received from one or more commercial nuclear reactors using MOX fuel prepared from surplus weapons plutonium. The other type is plutonium immobilized in ceramic disks, which would be embedded in HLW glass in the standard HLW glass disposal canister. The ceramic disks would occupy approximately 12% of the HLW canister volume, while most of the remaining 88% of the volume would be occupied by HLW glass. The studies reported here have been ongoing for five years, and much of the work has been presented in one of four previous annual reports. This is the first of the reports to be subject to requirements of the Office of Civilian Radioactive Waste Management Quality Assurance Requirements (DOE 1998a and CRWMS M&O 1999p). This compliance is necessary in order that the results presented here be applicable to the major upcoming OCRWM project statutory and licensing documents: the …
Date:
April 21, 2000
Creator:
Alsaed, A. A.
Object Type:
Report
System:
The UNT Digital Library
Charm Spectroscopy at BaBar
In this note we present results on charmed hadron decays recently obtained from data recorded with the BABAR detector at the Stanford Linear Accelerator Center (SLAC) PEP-II B-Factory.
Date:
April 21, 2006
Creator:
Altenburg, D. & U., /Dortmund
Object Type:
Article
System:
The UNT Digital Library
Fluorine for Hydrogen Exchange in the Hydrofluorobenzene Derivatives C6HxF(6-x), where x = 2, 3, 4 and 5 by Monomeric [1,2,4-(Me3C)3C5H2]2CeH; The Solid State Isomerization of [1,2,4-(Me3C)3C5H2]2Ce(2,3,4,5-C6HF4) to [1,2,4-(Me3C)3C5H2]2Ce(2,3,4,6-C6HF4)
The reaction between monomeric bis(1,2,4-tri-t-butylcyclopentadienyl)cerium hydride, Cp'2CeH, and several hydrofluorobenzene derivatives is described. The aryl derivatives that are the primary products, Cp'2Ce(C6H5-xFx) where x = 1,2,3,4, are thermally stable enough to be isolated in only two cases, since all of them decompose at different rates to Cp'2CeF and a fluorobenzyne; the latter is trapped by either solvent when C6D6 is used or by a Cp'H ring when C6D12 is the solvent. The trapped products are identified by GCMS analysis after hydrolysis. The aryl derivatives are generated cleanly by reaction of the metallacycle, Cp'((Me3C)2C5H2C(Me2)CH2)Ce, with a hydrofluorobenzene and the resulting arylcerium products, in each case, are identified by their 1H and 19F NMR spectra at 20oC. The stereochemical principle that evolves from these studies is that the thermodynamic isomer is the one in which the CeC bond is flanked by two ortho-CF bonds. This orientation is suggested to arise from the negative charge that is localized on the ipso-carbon atom due to Co(delta+)-Fo(delta-) polarization. The preferred regioisomer is determined by thermodynamic rather than kinetic effects; this is illustrated by the quantitative, irreversible solid-state conversion at 25oC over two months of Cp'2Ce(2,3,4,5-C6HF4) to Cp'2Ce(2,3,4,6-C6HF4), an isomerization that involves a CeC(ipso) for C(ortho)F …
Date:
April 21, 2008
Creator:
Andersen, Richard; Werkema, Evan L. & Andersen, Richard A.
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 106, No. 18, Ed. 1 Wednesday, April 21, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 21, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 18, Ed. 1 Thursday, April 21, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 21, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
HIF VNL Progress Report to DOE, April 22, 2005
We have made progress in learning to use the code Hydra to do detailed modeling of targets for Accelerator Driven High Energy Density Physics. Hydra is a state-of-the-art 3D, radiative transfer hydrodynamics modeling code developed at LLNL. In particular, we have carried out two-dimensional simulations of a 23 MeV, 1 mm radius Neon beam striking a 48 micron thick Aluminum foil at 10% solid density, and observed the heating of the foil by the beam. The Bragg peak was chosen to fall near the center of the foil, and as expected, rarefaction waves propagated symmetrically inward (at a speed of order the sound speed), as the heated material flowed outward and cooled. Foams allow relatively high temperatures to be attained over longer timescales, and the foils behaved, at least qualitatively, as predicted by previous analysis. Design of a number of configurations, ion species, and material compositions will be carried out using this code. Further, calculations by our collaborators at Tech-X corporation have compared results from the SRIM code (a code for understanding detailed energy deposition and scattering of ions in a cold solid) with cold dEdX curves published by Northcliffe and Schilling in 1970. The latter publication was used for …
Date:
April 21, 2005
Creator:
Barnard, J
Object Type:
Report
System:
The UNT Digital Library
[Norval Pohl shakes hands with Moot Court team]
Photograph of UNT President Norval Pohl shaking hands with members of the Moot Court team as part of the 2006 Honors Day ceremony. Pohl can be seen on the left side of the photograph, facing a row of students to the right. He is shaking hands with a young woman and appears to be speaking.
Date:
April 21, 2006
Creator:
Baugh, Brian
Object Type:
Photograph
System:
The UNT Digital Library
[Norval Pohl speaks at 2006 Honors Day celebration]
Photograph of UNT President Norval Pohl speaking at the Honors Day celebration in 2006. Pohl can be seen standing behind a podium on the left side of the photograph, facing to the right of the camera. He is gesturing with his right hand. A floral bouquet is visible next to the podium in the bottom right corner of the photograph.
Date:
April 21, 2006
Creator:
Baugh, Brian
Object Type:
Photograph
System:
The UNT Digital Library
[UNT faculty member speaks at 2006 Honors Day celebration]
Photograph of a member of the UNT faculty speaking at the Honors Day celebration in 2006. The man can be seen standing behind a podium on the left side of the photograph, looking down. Celia Williamson, Deputy Provost and Dean of Undergraduate Studies at UNT, is sitting among students and other faculty members in the background. They are all wearing caps and gowns.
Date:
April 21, 2006
Creator:
Baugh, Brian
Object Type:
Photograph
System:
The UNT Digital Library
[UNT faculty member stands with flag at 2006 Honors Day celebration]
Photograph of a member of the UNT faculty standing with a flag during the Honors Day celebration in 2006. The man can be seen in the center of the photograph, facing to the right of the camera and holding the flagpole with both hands. He is wearing a faculty cap and gown.
Date:
April 21, 2006
Creator:
Baugh, Brian
Object Type:
Photograph
System:
The UNT Digital Library
[UNT faculty stands at 2006 Honors Day event]
Photograph of members of the UNT faculty standing on stage during the 2006 Honors Day ceremony. Individuals can be seen in caps and gowns, facing to the right of the camera. President Norval Pohl (front left) and Gloria Cox (front, 4th from left), Associate Professor of Political Science, can be identified among the group.
Date:
April 21, 2006
Creator:
Baugh, Brian
Object Type:
Photograph
System:
The UNT Digital Library
The Foreign Intelligence Surveillance Act: An Overview of the Statutory Framework and Recent Judicial Decisions
This report will examine the detailed statutory structure provided by FISA and related provisions of E.O. 12333. In addition, it will discuss the decisions of the U.S. Foreign Intelligence Surveillance Court and the U.S. Foreign Intelligence Surveillance Court of Review
Date:
April 21, 2005
Creator:
Bazan, Elizabeth B.
Object Type:
Report
System:
The UNT Digital Library
The Grandview Tribune (Grandview, Tex.), Vol. 111, No. 33, Ed. 1 Friday, April 21, 2006
Weekly newspaper from Grandview, Texas that includes local, state, and national news along with advertising.
Date:
April 21, 2006
Creator:
Beck-Adams, Candie
Object Type:
Newspaper
System:
The Portal to Texas History
Mad Cow Disease: Agricultural Issues for Congress
This report discusses the bovine spongiform encephalopathy (BSE) also know as mad cow disease, which is a degenerative, fatal disease affecting the nervous system in cattle. Worldwide, BSE has been found in 187,000 animals, 183,000 of them in Great Britain, where it was first detected in 1986.
Date:
April 21, 2005
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
Meat and Poultry Inspection: Background and Selected Issues
This report provides background information on the safety food programs, statutory authorities, systems basics (i.e. coverage, plant sanitation, slaughter inscpection, processing inspection, pathogen testing etc). The report discusses microbiological contamination and Hazard Analysis and Critical Control Point (HACCP).
Date:
April 21, 2008
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
Canister Handling Facility Description Document
The purpose of this facility description document (FDD) is to establish requirements and associated bases that drive the design of the Canister Handling Facility (CHF), which will allow the design effort to proceed to license application. This FDD will be revised at strategic points as the design matures. This FDD identifies the requirements and describes the facility design, as it currently exists, with emphasis on attributes of the design provided to meet the requirements. This FDD is an engineering tool for design control; accordingly, the primary audience and users are design engineers. This FDD is part of an iterative design process. It leads the design process with regard to the flowdown of upper tier requirements onto the facility. Knowledge of these requirements is essential in performing the design process. The FDD follows the design with regard to the description of the facility. The description provided in this FDD reflects the current results of the design process.
Date:
April 21, 2005
Creator:
Beesley, J. F.
Object Type:
Report
System:
The UNT Digital Library
Gasoline Prices: New Legislation and Proposals
This report discusses policy options for Congress regarding gas prices. The high price of gasoline was an important consideration during the debate on major energy legislation, which ended August 8 as the President signed the Energy Policy Act of 2005, H.R. 6 (P.L. 109-58). However, prices continued to surge, spiking at the end of August when Hurricane Katrina shut down refining operations in the Gulf of Mexico. The continuing crisis renewed attention to some issues that were dropped or compromised in the debate over P.L. 109-58. A large number of factors combined to put pressure on gasoline prices, including increased world demand for crude oil and U.S. refinery capacity inadequate to supply gasoline to a recovering national economy. The war and continued violence in Iraq added uncertainty and a threat of supply disruption that added pressure particularly to the commodity futures markets.
Date:
April 21, 2006
Creator:
Behrens, Carl E. & Glover, Carol
Object Type:
Report
System:
The UNT Digital Library
Calculation of Mass Transfer Coefficients in a Crystal Growth Chamber through Heat Transfer Measurements
The growth rate of a crystal in a supersaturated solution is limited by both reaction kinetics and the local concentration of solute. If the local mass transfer coefficient is too low, concentration of solute at the crystal-solution interface will drop below saturation, leading to a defect in the growing crystal. Here, mass transfer coefficients are calculated for a rotating crystal growing in a supersaturated solution of potassium diphosphate (KDP) in water. Since mass transfer is difficult to measure directly, the heat transfer coefficient of a scale model crystal in water is measured using temperature-sensitive paint (TSP). To the authors' knowledge this is the first use of TSP to measure temperatures in water. The corresponding mass transfer coefficient is then calculated using the Chilton- Colburn analogy. Measurements were made for three crystal sizes at two running conditions each. Running conditions include periodic reversals of rotation direction. Heat transfer coefficients were found to vary significantly both across the crystal faces and over the course of a rotation cycle, but not from one face to another. Mean heat transfer coefficients increased with both crystal size and rotation rate. Computed mass transfer coefficients were broadly in line with expectations from the full-scale crystal growth …
Date:
April 21, 2005
Creator:
Bell, J H & Hand, L A
Object Type:
Report
System:
The UNT Digital Library
Peer-to-peer I/O (P2PIO) protocol specification Version 0.6
Today's distributed systems require simple and powerful resource discovery queries in a dynamic environment consisting of a large number of resources spanning many autonomous administrative domains. The distributed search problem is hard due to the variety of query types, the number of resources and their autonomous, partitioned and dynamic nature. We propose a generalized resource discovery framework that is built around an application level messaging protocol called Peer-to-Peer I/O (P2PIO). P2PIO addresses a number of scalability problems in a general way. It provides flexible and uniform transport-independent resource discovery mechanisms to reduce both the client and network burden in multi-hop P2P systems.
Date:
April 21, 2004
Creator:
Berket, Karlo; Essiari, Abdelilah; Gunter, Dan & Hoschek, Wolfgang
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Narcotics and U.S. Policy
This report provides current statistical information, profiles the Afghanistan narcotics trade's participants, explores linkages between narcotics, insecurity, and corruption, and reviews U.S. and international policy responses since late 2001. The report also considers ongoing policy debates regarding the counternarcotics role of coalition military forces, poppy eradication, alternative livelihoods, and funding issues for Congress.
Date:
April 21, 2009
Creator:
Blanchard, Christopher M.
Object Type:
Report
System:
The UNT Digital Library
Tactical Aircraft Modernization: Issues for Congress
None
Date:
April 21, 2005
Creator:
Bolkcom, Christopher
Object Type:
Report
System:
The UNT Digital Library