States

Vadose Zone Hydrogeology Data Package for the 2004 Composite Analysis (open access)

Vadose Zone Hydrogeology Data Package for the 2004 Composite Analysis

This document describes the geologic framework, the physical, hydrologic, and contaminant transport properties of the geologic materials, and deep drainage (i.e. recharge) estimates. Much of the data and interpreted information were extracted from existing documents and databases.
Date: August 12, 2004
Creator: Last, George V.; Freeman, Eugene J.; Cantrell, Kirk J.; Fayer, Michael J.; Gee, Glendon W.; Nichols, William E. et al.
Object Type: Report
System: The UNT Digital Library
NASA HSRP Emissions Scenarios Committee meeting, June 7, 1993 (open access)

NASA HSRP Emissions Scenarios Committee meeting, June 7, 1993

This primary purpose of this plan is to establish a process to ensure data integrity in the process of assembling aircraft emission scenario data sets from component data developed and provided by various sources. A component data set is one for a particular aircraft use (i.e. scheduled airline). A scenario data set is an ensemble set for a particular time. A secondary purpose is to help identify possible discrepancies or inconsistencies in the component data sets developed elsewhere or in the scenario data sets. This plan covers activities involved in assembling aircraft emission scenario data sets and by the component data set producers in supplying information to support evaluation of the component data sets. It does not cover work by the data producers to validate their work in developing the component data sets or to establish the fundamental soundness of the component data sets.
Date: August 12, 1993
Creator: Wuebbles, D. J. & Seals, R. M.
Object Type: Report
System: The UNT Digital Library
Novel QCD Phenomenology (open access)

Novel QCD Phenomenology

I review a number of topics where conventional wisdom in hadron physics has been challenged. For example, hadrons can be produced at large transverse momentum directly within a hard higher-twist QCD subprocess, rather than from jet fragmentation. Such 'direct' processes can explain the deviations from perturbative QCD predictions in measurements of inclusive hadron cross sections at fixed x{sub T} = 2p{sub T}/{radical}s, as well as the 'baryon anomaly', the anomalously large proton-to-pion ratio seen in high centrality heavy ion collisions. Initial-state and final-state interactions of the struck quark, the soft-gluon rescattering associated with its Wilson line, lead to Bjorken-scaling single-spin asymmetries, diffractive deep inelastic scattering, the breakdown of the Lam-Tung relation in Drell-Yan reactions, as well as nuclear shadowing and antishadowing. The Gribov-Glauber theory predicts that antishadowing of nuclear structure functions is not universal, but instead depends on the flavor quantum numbers of each quark and antiquark, thus explaining the anomalous nuclear dependence measured in deep-inelastic neutrino scattering. Since shadowing and antishadowing arise from the physics of leading-twist diffractive deep inelastic scattering, one cannot attribute such phenomena to the structure of the nucleus itself. It is thus important to distinguish 'static' structure functions, the probability distributions computed from the square …
Date: August 12, 2011
Creator: Brodsky, Stanley J. & /SLAC /Southern Denmark U., CP3-Origins
Object Type: Article
System: The UNT Digital Library
Chemical Technology Division, Unit Operations Section Monthly Progress Report for January 1958 (open access)

Chemical Technology Division, Unit Operations Section Monthly Progress Report for January 1958

Absolute calibration of neutron yields from a polonium nitrate- fluorocarbon interface gave 8 neutrons/min, sq cm, mc/ml. In two Fluorox fluidized bed reactor runs UF/sub 6/ recoveries of 47 and 70% theoretical were attained. Washing and descaling operations for Loop P-1 have been completed. Preliminary studies of ThO/sub 2/ classification by hydroclones showed that particles as small as 0.5 micron could be classified. Continuous, self- sustaining operation of the Darex dissolver, stripper, and reflux condenser was maintained during a 48-hr period. Uranium losses to the sublimate were less than 0.1% in a 24 hr Zircex run. A 32 hr dissolution run was completed in which a fuel element fabricated of Zircaloy-3 was dissolved in a NaF-ZrF/sub 4/ fused salt. (auth)
Date: August 12, 1958
Creator: Bresee, J. C.; Haas, P. A.; Watson, C. D. & Whatley, M. E.
Object Type: Report
System: The UNT Digital Library
EQUILIBRIUM CALCULATION IN THE SYSTEM: URANYL NITRATE, NITRIC ACID, WATER, TBP, AND KEROSENE DILUENT USING THE ORACLE DIGITAL COMPUTER (open access)

EQUILIBRIUM CALCULATION IN THE SYSTEM: URANYL NITRATE, NITRIC ACID, WATER, TBP, AND KEROSENE DILUENT USING THE ORACLE DIGITAL COMPUTER

A set of equations was written which allowed the calculation of equilibrium concentrations in the solvent phase of nitric acid and uranyl nitrate, given the initial TBP concentration in the solvent and the aqueous phase concentrations of acid and uranium. An ORACLE subroutine was written based on these equations which will calculate a set of equilibrium values in about 35 milliseconds. The subroutine was incorporated into a short program to calculate equilibrium points. A set of calculated points are presented in graphical form for 5, up to 7 M and uranyl nitrate concentrations up to 0.6 M in the aqueous phase. Since these calculations were based on limited data, it is the purpose of this memo to invite comment on their accuracy. The equations were reworked from a Russian paper by A. M. Rozen and L. P. Khorkhorina, using emperical polynomial fits for some poorly defined parameters, and were based principally on data from J. W. Codding. This project was undertaken to provide a subroutine to calculate equilibria in a general purpose ORACLE program to calculate the performance of multi-stage compound extraction cascades with more than one significant solute. (auth)
Date: August 12, 1959
Creator: Jury, S. H. & Whatley, M. E.
Object Type: Report
System: The UNT Digital Library
The First Galaxies: Chemical Enrichment, Mixing, and Star Formation (open access)

The First Galaxies: Chemical Enrichment, Mixing, and Star Formation

None
Date: August 12, 2011
Creator: Greif, Thomas H.; /Garching, Max Planck Inst. Plasmaphys.; Glover, Simon C.O.; U., /Heidelberg; Bromm, Volker; /Texas U., Astron. Dept. et al.
Object Type: Article
System: The UNT Digital Library
Direct Imaging of the Coexistence of Ferromagnetism and Superconductivity at the LaA1O3/SrTiO3 Interface (open access)

Direct Imaging of the Coexistence of Ferromagnetism and Superconductivity at the LaA1O3/SrTiO3 Interface

LaAlO{sub 3} and SrTiO{sub 3} are insulating, nonmagnetic oxides, yet the interface between them exhibits a two-dimensional electron system with high electron mobility, superconductivity at low temperatures, and electric-field-tuned metal-insulator and superconductor-insulator phase transitions. Bulk magnetization and magnetoresistance measurements also suggest some form of magnetism depending on preparation conditions and suggest a tendency towards nanoscale electronic phase separation. Here we use local imaging of the magnetization and magnetic susceptibility to directly observe a landscape of ferromagnetism, paramagnetism, and superconductivity. We find submicron patches of ferromagnetism in a uniform background of paramagnetism, with a nonuniform, weak diamagnetic superconducting susceptibility at low temperature. These results demonstrate the existence of nanoscale phase separation as suggested by theoretical predictions based on nearly degenerate interface subbands associated with the Ti orbitals. The magnitude and temperature dependence of the paramagnetic response suggests that the vast majority of the electrons at the interface are localized, and do not contribute to transport measurements. In addition to the implications for magnetism, the existence of a 2D superconductor at an interface with highly broken inversion symmetry and a ferromagnetic landscape in the background suggests the potential for exotic superconducting phenomena.
Date: August 12, 2011
Creator: Bert, Julie
Object Type: Article
System: The UNT Digital Library
Preliminary Theoretical and Flight Investigation of the Lateral Oscillation of the X-1 Airplane (open access)

Preliminary Theoretical and Flight Investigation of the Lateral Oscillation of the X-1 Airplane

Report presenting the results of flight tests showing lateral oscillation in the Bell X-1 and calculations created to determine the effects of changes in several mass and aerodynamic parameters on the lateral oscillations. Calculations indicate that lateral stability should be improved by a more positive inclination of the principal axis of inertia or a reduction of the value of yawing moment of inertia.
Date: August 12, 1949
Creator: Drake, Hubert M. & Wall, Helen L.
Object Type: Report
System: The UNT Digital Library
SEISMIC EVALUATION OF HYDROCARBON SATURATION IN DEEP-WATER RESERVOIRS (open access)

SEISMIC EVALUATION OF HYDROCARBON SATURATION IN DEEP-WATER RESERVOIRS

We are now entering the final stages of our ''Seismic Evaluation of Hydrocarbon Saturation in Deep-Water Reservoirs'' project (Grant/Cooperative Agreement DE-FC26-02NT15342). We have now developed several techniques to help distinguish economic hydrocarbon deposits from false ''Fizz'' gas signatures. These methods include using the proper in situ rock and fluid properties, evaluating interference effects on data, and doing better constrained inversions for saturations. We are testing these techniques now on seismic data from several locations in the Gulf of Mexico. In addition, we are examining the use of seismic attenuation as indicated by frequency shifts below potential reservoirs. During this quarter we have: Began our evaluation of our latest data set over the Neptune Field; Developed software for computing composite reflection coefficients; Designed and implemented stochastic turbidite reservoir models; Produced software & work flow to improve frequency-dependent AVO analysis; Developed improved AVO analysis for data with low signal-to-noise ratio; and Examined feasibility of detecting fizz gas using frequency attenuation. Our focus on technology transfer continues, both by generating numerous presentations for the upcoming SEG annual meeting, and by beginning our planning for our next DHI minisymposium next spring.
Date: August 12, 2005
Creator: Batzle, Michael; Han, D-h; Gibson, R. & James, Huw
Object Type: Report
System: The UNT Digital Library
Three memoranda of law discussing possible legal and policy constraints on BRAC Commission action regarding certain base closure and realignment recommendations (open access)

Three memoranda of law discussing possible legal and policy constraints on BRAC Commission action regarding certain base closure and realignment recommendations

Executive Correspondence - The following three memoranda of law discuss possible legal and policy constraints on BRAC Commission action regarding certain base closure and realignment recommendations. The memoranda are not products of deliberation by the Commissioners and accordingly do not necessarily represent their views, or those of the Commission.
Date: August 12, 2005
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Texas Register, Volume 11, Number 60, Pages 3566-3607, August 12, 1986 (open access)

Texas Register, Volume 11, Number 60, Pages 3566-3607, August 12, 1986

A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date: August 12, 1986
Creator: Texas. Secretary of State.
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Federal Register, Volume 76, Number 156, August 12, 2011, Pages 50111-50402 (open access)

Federal Register, Volume 76, Number 156, August 12, 2011, Pages 50111-50402

Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date: August 12, 2011
Creator: United States. Office of the Federal Register.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library