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64
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571 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
A Survey of Foreign Indebtedness to the United States
This report is about a Survey of Foreign Indebtedness to the United States
Date:
April 21, 1976
Creator:
Ahearn, Raymond
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
[CarbBank and the Complex Carbohydrate Structure Database. Annual Report 1994]
A brief status report and forthcoming changes to the CarbBank, a carbohydrate database, is provided.
Date:
April 21, 1994
Creator:
Albersheim, Peter & Doubet, S.
Object Type:
Report
System:
The UNT Digital Library
Flight Tests to Determine the Drag of Fin-Stabilized Parabolic Bodies at Transonic and Supersonic Speeds
Report presenting testing on parabolic bodies of revolution of two fineness ratios in the transonic and supersonic range. One had a body fineness ratio of 7.87 and one had a ratio of 12 and were tested under different Mach number ranges. Experimental results and drag estimates of various portions of the body are provided.
Date:
April 21, 1948
Creator:
Alexander, Sidney R.; Chauvin, Leo T. & Rumsey, Charles B.
Object Type:
Report
System:
The UNT Digital Library
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
Charged Particle Emission Following Bombardment of Nickel With 220 MeV Pi+
None
Date:
April 21, 1975
Creator:
Amann, J. F.; Barnes, P. D.; Doss, M. & Dytman, S. A.
Object Type:
Article
System:
The UNT Digital Library
Silo
Patent for a silo composed of sections that can be arranged to modify the capacity as needed, including illustrations.
Date:
April 21, 1914
Creator:
Ames, James W.
Object Type:
Patent
System:
The Portal to Texas History
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
Mail Bag Catchers and Deliverer
Patent for a mail bag catcher and deliverer. This invention is designed for the retrieval and delivery of mailbags by passing trains. Illustration included.
Date:
April 21, 1908
Creator:
Anderson, John
Object Type:
Patent
System:
The Portal to Texas History
The mean evolution and variability of the Asian summer monsoon: comparison of ECMWF and NCEP/NCAR reanalyses
The behavior of the Asian Summer Monsoon is compared using the European Centre for Medium Range Weather Forecasts Reanalysis (ERA) and the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis (Kalnay et al. 1996). The goals of this paper are to identify common features between the reanalyses, to assess their robustness for model validation, and especially to use reanalyses to develop their understanding of the mean evolution of the Asian Summer Monsoon and the characteristics of its interannual and intraseasonal variability (Annamalai et al. 1999).
Date:
April 21, 1999
Creator:
Annamalai, H.; Hodges, K.; Slingo, J. M. & Sperber, K. R.
Object Type:
Article
System:
The UNT Digital Library
The relationship between intraseasonal and interannual variability during the asian summer monsoon
The purpose of this paper is to investigate intraseasonal (30-70 days) and higher frequency (5-30 days) variability and its relationship to interannual variability. Various modelling studies have suggested a link between intraseasonal and interannual variability of the Asian summer monsoon. This relationship has been mainly based upon the similar spatial structures of the dominant EOF patterns of the monsoon circulation on intraseasonal and interannual time scales from simulations with simple models and atmospheric general circulation models. Here we investigate these relationships using 40 years of NCEP/NCAR Reanalysis. Motivation for this study is embodied in the suggestions of Charney and Shukla (1981) that boundary forcing (e.g., sea surface temperature) may predispose the monsoon system towards a dry or wet state, and the result of Palmer (1994), using the Lorenz (1963) model, that the probability of being in one regime of phase space or another is no longer equally probable in the presence of external forcing. To investigate the influence of the boundary forcing, the probability distribution functions (PDF�s) of the principal components are given.
Date:
April 21, 1999
Creator:
Annamalai, H; Slingo, J M & Sperber, K R
Object Type:
Article
System:
The UNT Digital Library
Demonstration Integrated Knowledge-Based System for Estimating Human Error Probabilities
Human Reliability Analysis (HRA) is currently comprised of at least 40 different methods that are used to analyze, predict, and evaluate human performance in probabilistic terms. Systematic HRAs allow analysts to examine human-machine relationships, identify error-likely situations, and provide estimates of relative frequencies for human errors on critical tasks, highlighting the most beneficial areas for system improvements. Unfortunately, each of HRA's methods has a different philosophical approach, thereby producing estimates of human error probabilities (HEPs) that area better or worse match to the error likely situation of interest. Poor selection of methodology, or the improper application of techniques can produce invalid HEP estimates, where that erroneous estimation of potential human failure could have potentially severe consequences in terms of the estimated occurrence of injury, death, and/or property damage.
Date:
April 21, 1999
Creator:
Auflick, Jack L.
Object Type:
Article
System:
The UNT Digital Library
Results of W-87/Mk21 Deployment Separation Shock Tests
This report summarizes results of the W-87/Mk21 Deployment Separation Shock Tests conducted at the Survivability and Vulnerability Integration Center (SVIC) Hill Air Force Base in Ogden, Utah, from 10/5/98 to 10/8/98. Specific details regarding the test plan and procedures can be found in the Master Test Plan listed in the references. Test Objectives: (1) Evaluate the performance of a set of servo accelerometers during and post Re-entry Vehicle (RV) separation events. These ultra-sensitive accelerometers ({mu}g) needed operate during and after the separation shock events and these tests would serve as confirmation of proper functioning. These sensors were later flown on FrU-15, a development flight unit supporting the Instrumented High Fidelity Joint Test Assembly Program, as part of an experimental Inertial Measurement Unit (IMU) measure RV dynamics during RV mechanical separation and spin-up. (2) Measure separation shock response at the IMU accelerometer locations. (3) Measure separation shock response at locations on the warhead and RV common to locations used on MMIII separation tests conducted at LMMS Valley Forge for data comparison.
Date:
April 21, 1999
Creator:
Avalle, C. A.
Object Type:
Report
System:
The UNT Digital Library
Physics basis for an axicell design for the end plugs of MFTF-B
The primary motivation for conversion of MFTF-B to an axicell configuration lies in its engineering promise as a reactor geometry based on circular high-magnetic-field coils. In comparing this configuration to the previous A-cell geometry, we find a number of differences that might significantly affect the physics performance. The purpose of the present document is to examine those features and to assess their impact on the performance of the axicell, as compared to the A-cell configuration, for MFTF-B. In so doing, we address only those issues thought to be affected by the change in geometry and refer to the original report Physics Basis for MFTF-B, for discussion of those issues thought not to be affected. In Sec. 1, we summarize these physics issues. In Sec. 2, we describe operating scenarios in the new configuration. In the Appendices, we discuss those physics issues that require more detailed treatment.
Date:
April 21, 1982
Creator:
Baldwin, D.E. & Logan, B.G. (eds.)
Object Type:
Report
System:
The UNT Digital Library
Window Screen Holder.
Patent for a new and improved window-screen holder. This design "consists in the combination, with a window-frame and a window-screen held in the same, of wires secured on the casing of the frame and having bends near their upper ends, and of hook-eyes held on the sides of the screen-frame and surrounding the wires. The invention also consists in a plate pivoted to the under side of the bottom rail of the screen-frame for covering a recess formed in the under edge and inner side of the said rail or piece" (lines 13-23).
Date:
April 21, 1885
Creator:
Barlow, Henry C.
Object Type:
Patent
System:
The Portal to Texas 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
Cotton-Chopper
Patent for a cotton chopper. Illustrations included.
Date:
April 21, 1908
Creator:
Barnett, James Samuel
Object Type:
Patent
System:
The Portal to Texas History
Evaluation of Direct Reading Attachment for Emission Spectrograph
None
Date:
April 21, 1966
Creator:
Barton, H. N. & Vejvoda, E.
Object Type:
Report
System:
The UNT Digital Library
Hydrocarbon-Burner
Patent for a hydrocarbon burner.
Date:
April 21, 1903
Creator:
Bateman, Talbot O.
Object Type:
Patent
System:
The Portal to Texas History
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
Post-Protector
Patent for Post Protector. This patent is about providing a better means to protect earth embedded structure from moisture and other corrosion materials so that life of earthed structure increases
Date:
April 21, 1903
Creator:
Beazley, John
Object Type:
Patent
System:
The Portal to Texas History
Food Safety on the Farm: Federal Programs and Selected Proposals
This report discusses comprehensive food safety bills that are progressing in the 111th Congress and could affect farmers and ranchers. Interest in on-farm practices was renewed after more than 1,300 persons in 43 states, the District of Columbia, and Canada were found to be infected with the same unusual strain of bacteria (Salmonella Saintpaul) in April-July 2008.
Date:
April 21, 2010
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library