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Development of a cost effective environment compliance technology for stripper brine wells. [Annual] report, January 1, 1993--December 31, 1993
The specific objective of the research is to demonstrate that the characteristics of wastewater from stripper oil wells and marginal gas wells are sufficiently similar to be treated under a standardized treatment methodology, that the environmental impacts of the discharge of treated brines from both stripper oil and marginal gas wells can be adequately regulated, and that the inclusion of marginal gas wells in the same category as stripper oil wells is appropriate, especially for wells operating in the Appalachian Basin. The work accomplished during 1992 for both the field-scale and the laboratory-scale treatment facilities focused on iron removal from the field and synthetic brines. The laboratory work also included single-element kinetics studies to determine the effect of one metal on another with respect to the rates of the various reactions. The laboratory process studies investigated such parameters as the sand bed thickness, the temperature of the system, the angle of the aeration unit, and the presence of the retention tank. All of these laboratory parametric studies provided insight into how each component of the treatment process contributes to the removal of iron from the synthetic brine. Similar studies have begun for investigating copper removal effectiveness. As for the field …
Date:
March 8, 1994
Creator:
Adewumi, M. A.; Watson, R. W.; Tian, S.; Heckman, S.; Safargar, S. & Drielinger, I.
Object Type:
Report
System:
The UNT Digital Library
{sup 17}O NMR Investigation of Oxidative Degradation in Polymers Under Gamma-Irradiation
The {gamma}-irradiated-oxidation of pentacontane (C{sub 50}H{sub 102}) and the polymer polyisoprene was investigated as a function of oxidation level using {sup 17}O nuclear magnetic resonance (NMR) spectroscopy. It is demonstrated that by using {sup 17}O labeled O{sub 2} gas during the {gamma}-irradiation process, details about the oxidative degradation mechanisms can be directly obtained from the analysis of the {sup 17}O NMR spectra. Production of carboxylic acids is the primary oxygen-containing functionality during the oxidation of pentacontane, while ethers and alcohols are the dominant oxidation product observed for polyisoprene. The formation of ester species during the oxidation process is very minor for both materials, with water also being produced in significant amounts during the radiolytic oxidation of polyisoprene. The ability to focus on the oxidative component of the degradation process using {sup 17}O NMR spectroscopy demonstrates the selectivity of this technique over more conventional approaches.
Date:
March 8, 2000
Creator:
Alam, Todd M.; Celina, Mathias C.; Assink, Roger A.; Clough, Roger Lee & Gillen, Kenneth T.
Object Type:
Article
System:
The UNT Digital Library
LLNL review of the 1994 accelerator production of tritium (APT) concept
LLNL was asked in September 1994 to review the accelerator production of tritium (APT) concept as it had evolved up to the fall of 1994. The purpose was not to compare it to other sources of tritium, but to identify possible technical flaws in the concept and to assess feasibility. The APT concept reviewed was based on a 1.0 GeV normal conducting proton linac operating CW at currents up to 200 mA with a target of tungsten and blanket of {sup 3}He and lead. The LLNL review group concurs with the conclusions of four previous reviews (1989 to 1994) that this concept can meet the tritium requirements of a reduced stockpile of approximately 3,500 {+-} 1,500 warheads. The authors believe that the predicted tritium production rate is based on sound nuclear and transport models and that the schedules for technology demonstrations, design, and construction are realistic. They conclude that the technical risk of the concept is low and can be managed within the risk reduction program. The risk reduction program should focus on risk to the schedule and on cost reduction.
Date:
March 8, 1995
Creator:
Alesso, H.P.; Barnard, J.J. & Booth, R.
Object Type:
Report
System:
The UNT Digital Library
Fire-Arm.
Patent for an improvement to adjusting rifle barrels and holding those adjustments in place. Includes illustrations.
Date:
March 8, 1887
Creator:
Alston, William F.
Object Type:
Patent
System:
The Portal to Texas History
Arm for Telegraph - Poles.
Patent for a new and useful arm for telegraph poles.
Date:
March 8, 1898
Creator:
Anderson, Lee
Object Type:
Patent
System:
The Portal to Texas History
The United States and Europe: Possible Options for U.S. Policy
None
Date:
March 8, 2005
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
In-Pile Slurry Loop Program
The in-plie slurry loop work is now being considered as a joint program between the PAR project and ORNL. It is proposed that PAR design, fabricate and test the in-pile loops and that ORNL operate the loops in-pile, dismantle the loops after irradiation and made the appropriate measurements to determine the radiation effects. This report gives the objects of the slurry in-pile program and outlines the facilities and operations required to execute ORNL's part of this program.
Date:
March 8, 1957
Creator:
Arehart, T. A.; Compere, E. L. (Edgar L.); Ferguson, D. E.; Korsmeyer, R. B. & McBride, J. P.
Object Type:
Report
System:
The UNT Digital Library
X-ray absorption study of the electronic structure of Mn-doped amorphous Si
The electronic structure of Mn in amorphous Si (a-Mn{sub x}Si{sub 1?x}) is studied by X-ray absorption spectroscopy at the Mn L{sub 3,2} edges for x = 0.005-0.18. Except the x = 0.005 sample, which shows a slight signature of Mn{sup 2+} atomic multiplets associated with a local Mn moment, all samples have broad and featureless L{sub 3,2} absorption peaks, corresponding to an itinerant state for all 3d electrons. The broad X-ray absorption spectra exclude the possibility of a localized 3d moment and explain the unexpectedly quenched Mn moment in this magnetically-doped amorphous semiconductor. Such a fully delocalized d state of Mn dopant in Si has not been previously suggested.
Date:
March 8, 2008
Creator:
Arenholz, Elke; Zeng, Li; Huegel, A.; Helgren, E.; Hellman, F.; Piamonteze, C. et al.
Object Type:
Article
System:
The UNT Digital Library
Status of the Yucca Mountain Project, License Application, and Repository Design Update
None
Date:
March 8, 2005
Creator:
Artur, W. John, III
Object Type:
Presentation
System:
The UNT Digital Library
Quantifying Stratospheric Ozone in the Upper Troposphere Using in situ Measurements of HCl
A chemical ionization mass spectrometry (CIMS) technique has been developed for precise in situ measurements of hydrochloric acid (HCl) from a high-altitude aircraft. In measurements at subtropical latitudes, minimum HCl values found in the upper troposphere (UT) are often near or below the 0.005-ppbv detection limit of the measurements, indicating that background HCl values are much lower than a global mean estimate. However, significant abundances of HCl were observed in many UT air parcels as a result of stratosphere-to-troposphere transport events. A method for diagnosing the amount of stratospheric ozone in these UT parcels was developed using the compact linear correlation of HCl with ozone found throughout the lower stratosphere (LS). Expanded use of this method will lead to improved quantification of cross-tropopause transport events and validation of global chemical transport models.
Date:
March 8, 2004
Creator:
Atherton, C. S.; Bergmann, D. J.; Marcy, T. P.; Fahey, D. W.; Gao, R. S.; Popp, P. J. et al.
Object Type:
Article
System:
The UNT Digital Library
Atmospheric Radiation Measurement Program Facilities Newsletter, February 2001.
Monthly newsletter discussing news and activities related to the Atmospheric Radiation Measurement Program, articles about weather and atmospheric phenomena, and other related topics.
Date:
March 8, 2001
Creator:
Atmospheric Radiation Measurement Program (U.S.)
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Numerical Solutions for Diffusion in a Sphere, Cylinder, and Plate
In calculating diffusion coefficients for gases diffusing from solids, the numerical solutions tabulated by Darken and Gurry, were found to lack the required precision, and the intervals between the arguments were too great to permit precise interpolations. Consequently the diffusion equation solutions of interest (diffusion from a sphere, cylinder, and plate, for the condition that the concentration of the diffusing species initially uniform) were re-evaluated. Computer programs for the three cases were written in FORTRAN for the IBM 7090. The solutions programmed are given in Crank. Values of the fractional completion were computed at approximately 0.01 increments, to the nearest 0.00001, and are tabulated in Table 1 to the nearest 0.0001. The table covers the fractional range from about 0.04 to 0.99. For smaller fractions satisfactory approximations are available. The table may be conveniently interpolated by plotting points about the region of interest and drawing a curve.
Date:
March 8, 1963
Creator:
Auskern, Allan
Object Type:
Report
System:
The UNT Digital Library
Calibration of a neutron log in partially saturated media IV: effects of sonde-wall gap
A gap between a neutron sonde and the wall of a borehole can have a significant effect on the observed count rate. This effect was determined experimentally to be linear with gaps as large as 2.5 cm. The count rate is given by N/sub N/ = K/sub 0/ + K/sub 1/g where K/sub 0/ is the count rate that would be observed at zero gap, and g is the gap. The parameters K/sub 0/ and K/sub 1/ are dependent on both water (ie. hydrogen) content and bulk density. In many situations failure to correct the count rate for this gap effect can result in a significant degradation in the accuracy of the water content calculated from the count rate. In a dry borehole, K/sub 1/ is small at zero formation water content, and increases with formation water content. In a water-filled borehole, K/sub 1/ is large at zero formation water content, and tends to decrease with increasing formation water content, becoming zero, as of course it must, if the formation is pure water. The absolute value of K/sub 1/ increases with increasing density. A representation was determined for K/sub 0/ and K/sub 1/ from experimental data. This representation can be …
Date:
March 8, 1984
Creator:
Axelrod, M. C. & Hearst, J. R.
Object Type:
Article
System:
The UNT Digital Library
Effect of Workbench Shielding on Nagasaki Factory Workers' Dose
None
Date:
March 8, 2001
Creator:
Azmy, Y.Y.
Object Type:
Report
System:
The UNT Digital Library
Improvements in bis(cyclopentadienyl)magnesium purity as determined with gas chromatography-mass spectroscopy
Bis(cyclopentadienyl)magnesium (MgCp2) is used commonly as a source for doping nitride materials with magnesium. Increased oxygen incorporation known to accompany the use of MgCp2 makes the purity of this precursor an important consideration in nitride CVD. Gas chromatography-mass spectroscopy (GCMS) methods have now been developed for the identification of volatile impurities in MgCp2. Diethylether, an oxygen containing organic compound (CH{sub 3}CH{sub 2}OCH{sub 2}CH{sub 3}), and additional organic impurities were found in the MgCp2 supplied by three manufacturers. Subsequent refinements in the synthetic processes by these companies have resulted in the availability of MgCp2 free of ether and other organic impurities as determined by GCMS.
Date:
March 8, 2000
Creator:
BARTRAM,MICHAEL E.
Object Type:
Article
System:
The UNT Digital Library
Development of a GaAs Monolithic Surface Acoustic Wave Integrated Circuit
An oscillator technology using surface acoustic wave delay lines integrated with GaAs MESFET electronics has been developed for GaAs-based integrated microsensor applications. The oscillator consists of a two-port SAW delay line in a feedback loop with a four-stage GaAs MESFET amplifier. Oscillators with frequencies of 470, 350, and 200 MHz have been designed and fabricated. These oscillators are also promising for other RF applications.
Date:
March 8, 1999
Creator:
Baca, A. G.; Casalnuovo, S. C.; Drummond, T. J.; Frye, G. C.; Heller, E. J.; Hietala, V. M. et al.
Object Type:
Article
System:
The UNT Digital Library
Installation of line replaceable units into the National Ignition Facility
In the National Ignition Facility (NIF), currently under design and construction at Lawrence Livermore National Laboratory (LLNL), 192 high-power laser beamlines incorporating over 8,000 large optics, are focused onto a target smaller than a dime. The actual laser path will be contained within the Laser Target Area Building (LTAB), but the smaller adjacent building, the Optics Assembly Building, is where the optic modules are assembled and aligned. After the optics are finished in the OAB they must be transported and installed into the LTAB. While this is done strict cleanliness and handling conditions must be maintained. To maximize the efficiency of this process the optics are assembled into Line Replaceable Units (LRUs), which typically consist of a mechanical housing, laser optics, utilities, actuators and kinematic mounts. In this paper the Optical Transport and Material Handling designs that will be used to deliver the LRUs into the NIF laser bays are presented. Five types of delivery systems have been developed to deliver the LRUs to their locations in the LTAB. They are top loading, bottom loading, side loading, switchyard loading and target area loading. The first three operate in the laser bay of the LTAB and are transported between the OAB …
Date:
March 8, 1999
Creator:
Bahowick, S; Mcmahon, D; Rowe, A; Tiszauer, D & Yakuma, S
Object Type:
Article
System:
The UNT Digital Library
Mosquito Netting Frame.
Patent for a new and improved mosquito netting frame. This design "consists of a mosquito-netting frame formed of two longitudinal rods removably fastened to uprights attached to the bedposts, and held by cords or wires passing from the outer ends of each of said longitudinal rods to the top of each upright. A transverse rod or bar is removably attached to the outer ends of said longitudinal bars or rods. . . . [The design] is simple in construction, light, durable, and convenient" (lines 9-18).
Date:
March 8, 1881
Creator:
Bailey, Alfred H.
Object Type:
Patent
System:
The Portal to Texas History
CDF Run I B physics results
The CDF Run I B physics program has been very successful, making numerous measurements over a wide variety of B physics topics. Measurements have included masses and lifetimes; discovery of the B{sub c}; B{sub s} {r_arrow} J/{psi}{phi} polarization; B{sup 0} {leftrightarrow} {bar B}{sup 0} mixing; sin (2{beta}); and rare decay limits. Recent results include a search for {Lambda}{sub b} {r_arrow} {Lambda}{gamma} and a study of B{sup 0} {r_arrow} J/{psi}K(*){sup 0} {pi}{sup +}{pi}{sup {minus}} decays. The tools and experience developed during Run I are quite valuable as CDF enters Run II.
Date:
March 8, 2001
Creator:
Bailey, S.
Object Type:
Article
System:
The UNT Digital Library
100-N Decontamination Facility Design Guide.
Space has been reserved near the southeast corner of the 100-N Area for the 122-N Decontamination Facility. Previous correspondence between Burns and Roe, Inc and General Electric bae discussed various facilities which might be needed in the building. The concepts of the decontamination processes are under active development by research groups at Hanford. At present, there are several workable processes known; each one has one or more fairly serious drawbacks.
Date:
March 8, 1960
Creator:
Bainard, W. D.
Object Type:
Report
System:
The UNT Digital Library
Governing Mechanism
Patent for a governing mechanism. This invention relates to governing a plurality of engines in unison. Illustration included.
Date:
March 8, 1904
Creator:
Ball, Philip De C. & Wakefield, Charles L.
Object Type:
Patent
System:
The Portal to Texas History
Abandoned Mine Land Fund Reauthorization: Selected Issues
This report provides a summary of the structure of the Abandon Mine Land (AML) program, distribution of funds, and discusses major proposals considered in the 108th Congress.
Date:
March 8, 2005
Creator:
Bamberger, Robert L.
Object Type:
Report
System:
The UNT Digital Library
Radial Excitations
In this contribution I discuss recent experimental developments in the Spectroscopy of higher-mass mesons, especially candidate radial excitations discussed at the WHS99 meeting in Frascati.
Date:
March 8, 1999
Creator:
Barnes, T.
Object Type:
Article
System:
The UNT Digital Library
Trolley Wire Finder
Patent for a trolley wire finder. This invention to improvements in trolley-wire finders, and more particularly to its attachment to trolley-poles and trolley-harps as a means of assistance in guiding the trolley wheel has been shifted from or slipped off said trolley-wire and is of advantage as a means of saving time." (8-16). Illustration included.
Date:
March 8, 1904
Creator:
Barnhusrt, William
Object Type:
Patent
System:
The Portal to Texas History