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Office of Scientific & Technical Information Technical Reports
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154
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60
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36
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6
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Evaluation of Roof Bolting Requirements Based on In-Mine Bolter Drilling Progress Report
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Air-quality-model update
The Livermore Regional Air Quality Model (LIRAQ) has been updated and improved. This report describes the changes that have been made in chemistry, species treatment, and boundary conditions. The results of smog chamber simulations that were used to verify the chemistry as well as simulations of the entire air quality model for two prototype days in the Bay Area are reported. The results for the prototype day simulations are preliminary due to the need for improvement in meteorology fields, but they show the dependence and sensitivity of high hour ozone to changes in selected boundary and initial conditions.
Date:
January 15, 1982
Creator:
Penner, J.E. & Walton, J.J.
Object Type:
Report
System:
The UNT Digital Library
Alloy evaluation for fossil fuel process plants (liquefaction). Quarterly report, October 1, 1977--December 31, 1977
Base properties have been determined for A387-74A-Gr. 22-Cl. 2 steel at various temperatures in inert environments. Tests have been completed to monitor the actual stress level as a function of exposure time in tensile samples loaded in pre-compressed rings. Samples were exposed under various stress levels at 900/sup 0/F to determine the amount of creep during the 168 hour exposures. Results of all exposure tests (including samples under load during exposure with and without creep, in inert gas) revealed that no degradation of ambient temperature mechanical properties occurred.
Date:
January 15, 1978
Creator:
Woods, C. M. & Scott, T. E.
Object Type:
Report
System:
The UNT Digital Library
Alloys for 1000 degree C service in the Next Generation Nuclear Plant NERI 05-0191
The objective of the proposed research is to define strategies for the improvement of alloys for structural components, such as the intermediate heat exchanger and primary-to-secondary piping, for service at 1000 degree C in the He environment of the NGNP. Specifically, we will investigate the oxidation/carburization behavior and microstructure stability and how these processes affect creep. While generating this data, the project will also develop a fundamental understanding of how impurities in the He environment affect these degradation processes and how this understanding can be used to develop more useful life prediction methodologies.
Date:
January 15, 2009
Creator:
Was, Gary S.; Jones, J.W. & Pollock, T.
Object Type:
Report
System:
The UNT Digital Library
Alternative HEPA Filter Full-Scale Single Element Testing
Conventional disposable glass-fiber high efficiency particulate air (HEPA) filters are used throughout the Department of Energy complex in various process systems. Alternative filter media is being addressed that would have a long life on the HLW tanks.
Date:
January 15, 2003
Creator:
Adamson, D. J.
Object Type:
Report
System:
The UNT Digital Library
Altitude Free-Jet Investigation of Dynamics of a 28-Inch-Diameter Ram-Jet Engine
From Introduction: "The feasibility of closed-loop control of ram-jet-engine thrust is demonstrated in references 1 and 2. The dynamic behavior of a 28-inch-diameter ram-jet engine designed to operate in Mach number range of 2.35 to 2.70 is evaluated herein."
Date:
January 15, 1957
Creator:
Wentworth, Carl B.; Dunbar, William R. & Crowl, Robert J.
Object Type:
Report
System:
The UNT Digital Library
The Americans with Disabilities Act: Toyota Motor Manufacturing v. Williams
The Supreme Court, in Toyota Motor Manufacturing v. Williams, held that to be an individual with a disability under the Americans with Disabilities Act (ADA) an individual must have substantial limitations on abilities that are central to daily life,rather than only to those abilities used in the workplace. In an unanimous opinion written by Justice O’Connor, the Court interpreted the definition of individual with disability narrowly to exclude individuals who are limited only in the performance of manual tasks associated with their job. This report will briefly discuss Williams and its implications for the ADA.
Date:
January 15, 2002
Creator:
Jones, Nancy L.
Object Type:
Report
System:
The UNT Digital Library
AmiGO: online access to ontology and annotation data
AmiGO is a web application that allows users to query, browse, and visualize ontologies and related gene product annotation (association) data. AmiGO can be used online at the Gene Ontology (GO) website to access the data provided by the GO Consortium; it can also be downloaded and installed to browse local ontologies and annotations. AmiGO is free open source software developed and maintained by the GO Consortium.
Date:
January 15, 2009
Creator:
Carbon, Seth; Ireland, Amelia; Mungall, Christopher J.; Shu, ShengQiang; Marshall, Brad & Lewis, Suzanna
Object Type:
Article
System:
The UNT Digital Library
Analysis of spherical geometry finite element transport solutions in the thick diffusion limit
An asymptotic analysis if performed on a family of discontinuous finite element methods (DFEMs) for spherical geometry transport. It is found that transport methods of this type transition into discrete versions of the spherical geometry diffusion equation in the thick diffusion limit with boundary conditions that may, in general, be inaccurate. A linear DFEM method has been designed such that its asymptotic diffusion boundary conditions are accurate. In a related development, the asymptotic diffusion equation is used to accelerate the transport calculation and the iterative scheme is fully described. The results of the analysis are confirmed by numerical testing of the specific case of linear elements. 5 refs., 2 figs., 1 tab.
Date:
January 15, 1991
Creator:
Palmer, T.S. (Michigan Univ., Ann Arbor, MI (USA). Dept. of Nuclear Engineering) & Adams, M.L. (Lawrence Livermore National Lab., CA (USA))
Object Type:
Article
System:
The UNT Digital Library
Analysis of the flux and polarization spectra of the type Ia supernova SN 2001el: Exploring the geometry of the high-velocity Ejecta
SN 2001el is the first normal Type Ia supernova to show a strong, intrinsic polarization signal. In addition, during the epochs prior to maximum light, the CaII IR triplet absorption is seen distinctly and separately at both normal photospheric velocities and at very high velocities. The unusual, high-velocity triplet absorption is highly polarized, with a different polarization angle than the rest of the spectrum. The unique observation allows us to construct a relatively detailed picture of the layered geometrical structure of the supernova ejecta: in our interpretation, the ejecta layers near the photosphere (v approximately 10,000 km/s) obey a near axial symmetry, while a detached, high-velocity structure (v approximately 18,000-25,000 $ km/s) of CaII line opacity deviates from the photospheric axisymmetry. By partially obscuring the underlying photosphere, the high-velocity structure causes a more incomplete cancellation of the polarization of the photospheric light, and so gives rise to the polarization peak of the high-velocity IR triplet feature. In an effort to constrain the ejecta geometry, we develop a technique for calculating 3-D synthetic polarization spectra and use it to generate polarization profiles for several parameterized configurations. In particular, we examine the case where the inner ejecta layers are ellipsoidal and the …
Date:
January 15, 2003
Creator:
Kasen, Daniel; Nugent, Peter; Wang, Lifan; Howell, D. A.; Wheeler, J. Craig; Hoeflich, Peter et al.
Object Type:
Article
System:
The UNT Digital Library
Analysis of variation of piston temperature with piston dimensions and undercrown cooling
From Summary: "A theoretical analysis is presented that permits estimation of the changes in piston-temperature distribution induced by variations in the crown thickness, the ring-groove-pad thickness, and the undercrown surface heat-transfer coefficient. The analysis consists of the calculation of operating temperatures at various points in the piston body on the basis of the experimentally determined surface heat-transfer coefficients and boundary-region temperatures, as well as arbitrarily selected surface coefficients."
Date:
January 15, 1948
Creator:
Sanders, J. C. & Schramm, W. B.
Object Type:
Report
System:
The UNT Digital Library
Analytic Expressions for the Angular Resolution of Compton Gamma-ray Detectors
This paper describes the derivation of analytic expressions for the angular resolution of reconstructing gamma rays detected via Compton interactions. We consider two types of gamma-ray detectors: Compton-ring and electron-tracking devices. In Compton-ring devices, the direction of the scattered electron is not resolved, only the total energy (electron and scattered photon) and the scattered photon direction are measured. The measured quantities define a cone about the axis of the scattered photon direction. The initial photon direction lies along this cone. Thus for single events there is a ring-like ambiguity in the photon direction. By combining multiple events, the intersection of the reconstructed rings will resolve the initial direction of the photon source. In this paper, we derive the resolution of the cone angle for individual rings. Electron-tracking type devices resolve the electron path. Although the scattered electron subsequently undergoes multiple-Coulomb scattering, it is possible to measure the initial electron direction with sufficiently high tracking resolution. By measuring the direction and energy of the electron and the direction of the scattered photon, the initial photon direction can be uniquely determined. The challenge for this type of detector is achieving the high tracking resolution. In Section 2 we derive the well-known Compton …
Date:
January 15, 2004
Creator:
Wright, D M
Object Type:
Report
System:
The UNT Digital Library
Analytical procedures for the plutonium Metal Fabrication Process
A report describing a the results of a fluorimetric and volumetric method for the determination of fluoride. This method was developed for the determination of ionizable fluorine in gases in the range of 1-500ppm. This method was chosen because the determination depends on the generation of a color rather than the bleaching effect or on a change of color.
Date:
January 15, 1951
Creator:
Kendall, L. F.
Object Type:
Report
System:
The UNT Digital Library
ANL Critical Assembly Covariance Matrix Generation
This report discusses the generation of a covariance matrix for selected critical assemblies that were carried out by Argonne National Laboratory (ANL) using four critical facilities - all of which are now decommissioned.
Date:
January 15, 2014
Creator:
McKnight, R. D. & Grimm, K. N. (Nuclear Engineering Division)
Object Type:
Report
System:
The UNT Digital Library
Annual Progress Report on Nuclear Chemistry Research, February 1, 1979--January 31, 1980. [Univ. Of Chicago, 11/1/77--1/1/79]
The prinicpal effort during this contract period was directed toward preparing for on-line radiochemical experiments at LAMPF directed toward studying rare processes such as (..pi../sup -/, ..pi../sup +/), (n, ..delta../sup + +/) and (..mu../sup -/, e/sup +/) in /sup 88/Sr. Chemical scavenging techniques to remove interfering products were shown to be effective without significantly affecting the sensitivity of the detection system. Sensitivities of less than 0.1 ..mu..b for the first two processes appear achievable. Detailed statistical analysis of last years' experiments is leading to new limits, about an order of magnitude lower than already reported, on the formation of polyneutrons, reinforcing the conclusion that such species are not particle stable. 100/sup -/GeV ..pi../sup -/ studies of copper spallation are revealing no dramatic differences between spallation with pions and that with protons. Essentially, this report consists of a collection of abstract-like summaries.
Date:
January 15, 1979
Creator:
Turkevich, A.
Object Type:
Report
System:
The UNT Digital Library
Antisense oligodeoxynucleotide inhibition as a potent diagnostic tool for gene function in plant biology
Antisense oligodeoxynucleotide (ODN) inhibition emerges as an effective means for probing gene function in plant cells. Employing this method we have established the importance of the SUSIBA2 transcription factor for regulation of starch synthesis in barley endosperm, and arrived at a model for the role of the SUSIBAs in sugar signaling and source-sink commutation during cereal endosperm development. In this addendum we provide additional data demonstrating the suitability of the antisense ODN technology in studies on starch branching enzyme activities in barley leaves. We also comment on the mechanism for ODN uptake in plant cells. Antisense ODNs are short (12-25 nt-long) stretches of single-stranded ODNs that hybridize to the cognate mRNA in a sequence-specific manner, thereby inhibiting gene expression. They are naturally occurring in both prokaryotes and eukaryotes where they partake in gene regulation and defense against viral infection. The mechanisms for antisense ODN inhibition are not fully understood but it is generally considered that the ODN either sterically interferes with translation or promotes transcript degradation by RNase H activation. The earliest indication of the usefulness of antisense ODN technology for the purposes of molecular biology and medical therapy was the demonstration in 1978 that synthetic ODNs complementary to Raos …
Date:
January 15, 2008
Creator:
Jansson, Christer; Sun, Chuanxin; Ghebramedhin, Haile; Hoglund, Anna-Stina & Jansson, Christer
Object Type:
Article
System:
The UNT Digital Library
Application of Integrated Reservoir Management and Reservoir Characterization to Optimize Infill Drilling.
A total of 18 wells, 14 producers and 4 injection wells, were drilled and completed during the Field Demonstration portion of the project. These 18 wells are all currently in service, with the producing wells going on-line between May and September 1996, and the injection wells going into service between August and December 1996. Current Unit production is approximately 3,100 BOPD, of which approximately 800 BOPD is being contributed from the 14 Project 10-acre producing wells (Figure 1). A revision in the Statement of Work was approved to allow for the drilling of additional 10-acre infill wells or injection well conversions as budget constraints allow.
Date:
January 15, 1998
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Application of Reservoir Characterization and Advanced Technology to Improve Recovery and Economics in a Lower Quality Shallow Shelf San Andres Reservoir. Quarterly Progress Report: October 1--December 31, 2001
The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs. Therefore, the majority of Budget Period 1 was devoted to reservoir characterization. Technologies being demonstrated include: (1) Advanced petrophysics; (2) Three-dimensional (3-D) seismic; (3) Crosswell bore tomography; (4) Advanced reservoir simulation; (5) Carbon dioxide (CO{sub 2}) stimulation treatments; (6) Hydraulic fracturing design and monitoring; (7) Mobility control agents.
Date:
January 15, 2003
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Applications of power spectral analysis methods to maneuver loads obtained on jet fighter airplanes during service operations
Report presenting power spectral densities of normal load factor obtained for two service operational training flights of a Republic F-84G airplane and three service operational training flights of a North American F-86A airplane in order to indicate the load-factor frequency content and possible uses of power spectral methods in analyzing maneuver load data. Results regarding the spectra of the two different planes, an analytical representation of maneuver load spectrum, and probability distributions are provided.
Date:
January 15, 1957
Creator:
Mayer, John P. & Hamer, Harold A.
Object Type:
Report
System:
The UNT Digital Library
Appropriations and Fund Transfers in the Patient Protection and Affordable Care Act (ACA)
This report provides information about the mandatory appropriations and fund transfers in patient protection and ACA.
Date:
January 15, 2013
Creator:
Redhead, C. Stephen
Object Type:
Report
System:
The UNT Digital Library
Appropriations for FY2002: Transportation and Related Agencies
Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the Subcommittees on Transportation of the House and Senate Committees on Appropriations.
Date:
January 15, 2002
Creator:
Kirk, Robert S. & Peterman, David Randall
Object Type:
Report
System:
The UNT Digital Library
Appropriations for FY2003: Labor, Health and Human Services, and Education
Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress considers each year. It is designed to supplement the information provided by the House and Senate Labor, Health and Human Services, and Education Appropriations Subcommittees.
Date:
January 15, 2003
Creator:
Irwin, Paul M.
Object Type:
Report
System:
The UNT Digital Library
Aqueous and gaseous nitrogen losses induced by fertilizer application
In recent years concern has grown over the contribution of nitrogen (N) fertilizer use to nitrate (NO{sub 3}{sup -}) water pollution and nitrous oxide (N{sub 2}O), nitric oxide (NO), and ammonia (NH{sub 3}) atmospheric pollution. Characterizing soil N effluxes is essential in developing a strategy to mitigate N leaching and emissions to the atmosphere. In this paper, a previously described and tested mechanistic N cycle model (TOUGHREACT-N) was successfully tested against additional observations of soil pH and N{sub 2}O emissions after fertilization and irrigation, and before plant emergence. We used TOUGHREACT-N to explain the significantly different N gas emissions and nitrate leaching rates resulting from the different N fertilizer types, application methods, and soil properties. The N{sub 2}O emissions from NH{sub 4}{sup +}-N fertilizer were higher than from urea and NO{sub 3}{sup -}-N fertilizers in coarse-textured soils. This difference increased with decreases in fertilization application rate and increases in soil buffering capacity. In contrast to methods used to estimate global terrestrial gas emissions, we found strongly non-linear N{sub 2}O emissions as a function of fertilizer application rate and soil calcite content. Speciation of predicted gas N flux into N{sub 2}O and N{sub 2} depended on pH, fertilizer form, and soil …
Date:
January 15, 2009
Creator:
Gu, C.; Maggi, F.; Riley, W. J.; Hornberger, G. M.; Xu, T.; Oldenburg, C. M. et al.
Object Type:
Article
System:
The UNT Digital Library
ARTI/MCRL Project Report products of motor burnout (Second quarter report)
The OSP (Operating Safety Procedure) required for performance of electrical arc testing of CFC replacement fluids was renewed. Electrical breakdown tests at one (1) atmosphere pressure have been performed for R-22, R-134a, and R-125/R-143a (50:50 blend; AZ-50), and breakdown products identified. No differences in HCFC breakdown products are seen in the presence or absence of lubricant oils. The design of the high pressure-high temperature test stand has been finalized, and construction initiated during this quarter. Three motor stators and rotors were received from Tecumseh Products Company for use in motor burnout tests. A test plan for the motor breakdown tests is in preparation.
Date:
January 15, 1995
Creator:
Hawley-Fedder, R.
Object Type:
Report
System:
The UNT Digital Library
ARTI refrigerant database
The Refrigerant Database is an information system on alternative refrigerants, associated lubricants, and their use in air conditioning and refrigeration. it consolidates and facilitates.access to property, compatibility, environmental, safety, application and other information. It provides corresponding information on older refrigerants, to assist manufacturers and those using alternative refrigerants, to make comparisons and determine differences. The underlying purpose is to accelerate phase out of chemical compounds of environmental concern.
Date:
January 15, 1996
Creator:
Calm, J.M.
Object Type:
Report
System:
The UNT Digital Library