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Office of Scientific & Technical Information Technical Reports
232
Congressional Research Service Reports
135
Texas Patents
48
Government Accountability Office Reports
44
Texas Attorney General Opinions
36
Technical Report Archive and Image Library
28
National Advisory Committee for Aeronautics Collection
19
Texas Laws and Resolutions Archive
18
Texas Register
10
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NEUTRON TISSUE DOSE AT LARGE DISTANCES FROM AN ELEVATED UNSHIELDED REACTOR
The neutron tissue dose at large distances from a fission source was studied by using a water-filled phantom and four different detectors: a BF/sub 3/ counter, a polyethylenelined ethylene-filled proportional counter, indium foils, and nuclear emulsions. The source of fission neutrons was the ORNL Health Physics Research Reactor which was attached to a hoist which was in turn installed on a 1530-foot tower. The reactor could be operated at any elevation from 27 to 1500 ft. The phantom studies were made at horizontal distances from 250 to 1500 yards from the tower. Dose contributions from recoil protons H/sup 1/ (n, gamma )D/sup 2/ and N/sup 14/(n,p)C/sup 1 reactions are considered. (auth)
Date:
March 11, 1963
Creator:
Aceto, H. Jr.; Pick, M.A. & Stephens, L.D.
Object Type:
Report
System:
The UNT Digital Library
Oxides of nitrogen exposures accompanying pickling operations 313 Building - 300 Area
None
Date:
March 11, 1949
Creator:
Adley, F. E.
Object Type:
Report
System:
The UNT Digital Library
Non-Adiabatic Effects on Combustion Front Propagation in Porous Media: Multiplicity of Steady States
The sustained propagation of combustion fronts in porous media is a necessary condition for the success of an in situ combustion project for oil recovery. Compared to other recovery methods, in situ combustion involves the added complexity of exothermic reactions and temperature-dependent chemical kinetics. In the presence of heat losses, the possibility of ignition and extinction (quenching) exists. In this report, we address the properties of combustion fronts propagating at a constant velocity in the presence of heat losses.
Date:
March 11, 2002
Creator:
Akkutlu, I. Yucel & Yortsos, Yanis C.
Object Type:
Report
System:
The UNT Digital Library
Challenges in biotechnology at LLNL: from genes to proteins
This effort has undertaken the task of developing a link between the genomics, DNA repair and structural biology efforts within the Biology and Biotechnology Research Program at LLNL. Through the advent of the I.M.A.G.E. (Integrated Molecular Analysis of Genomes and their Expression) Consortium, a world-wide effort to catalog the largest public collection of genes, accepted and maintained within BBRP, it is now possible to systematically express the protein complement of these to further elucidate novel gene function and structure. The work has ensued in four phases, outlined as follows: (1) Gene and System selection; (2) Protein expression and purification; (3) Structural analysis; and (4) biological integration. Proteins to be expressed have been those of high programmatic interest. This includes, in particular, proteins involved in the maintenance of genome integrity, particularly those involved in the repair of DNA damage, including ERCC1, ERCC4, XRCC2, XRCC3, XRCC9, HEX1, APN1, p53, RAD51B, RAD51C, and RAD51. Full-length cDNA cognates of selected genes were isolated, and cloned into baculovirus-based expression vectors. The baculoviral expression system for protein over-expression is now well-established in the Albala laboratory. Procedures have been successfully optimized for full-length cDNA clining into expression vectors for protein expression from recombinant constructs. This includes the …
Date:
March 11, 1999
Creator:
Albala, J S
Object Type:
Report
System:
The UNT Digital Library
Vehicle-Wheel.
Patent for improving a tire by providing new form of tread-holding device and using a resilient metal band encircling the tire.
Date:
March 11, 1919
Creator:
Allan, William N.
Object Type:
Patent
System:
The Portal to Texas History
Thickener (Sewage Type).
Patent for sewage thickener that relies on sewage solids to sink to the bottom of the sewer and fall into the thickener, in which the thickener will press the solid sewage into a pulp. The pulp will be pressed at a predetermined density, and then the pressed pulp will float to the top of the sewage to be removed. The separation of liquid and solid sewage was predicted to prevent overflow.
Date:
March 11, 1920
Creator:
Allen, Charles
Object Type:
Patent
System:
The Portal to Texas History
Bridle Bit.
Patent for a new and improved bridle bit. This design "consist[s] of curb-plates provided with the mouth-bar and having the upper ends provided with slots and the lower ends formed with longitudinal slots, and the cheek-plates loosely fitted to the outer ends of the mouth-bar and having their opposite ends formed with openings for the attachment of the head-stall and reins" (lines 72-79).
Date:
March 11, 1890
Creator:
Allen, John Hudson
Object Type:
Patent
System:
The Portal to Texas History
Status report to USNDC
None
Date:
March 11, 1975
Creator:
Anderson, J. D. & Browne, J. C.
Object Type:
Report
System:
The UNT Digital Library
The Strategic Petroleum Reserve and Refined Product Reserves: Authorization and Drawdown Policy
This report discusses the Strategic Petroleum Reserve (SPR) in the Energy Policy and Consevation Act, which was authorized to help prevent a repetition of the economic dislocation caused by the 1973-1974 Arab oil embargo. The Government Accountability Office recently observed that the proportion of crude oil grades in the SPR has been growing less compatible with the heavier grades of crude oil that U.S. refineries have been upgrading to handle. This finding has raised questions about the SPR's effectiveness during a long-term oil disruption involving heavy oil.
Date:
March 11, 2011
Creator:
Andrews, Anthony & Pirog, Robert
Object Type:
Report
System:
The UNT Digital Library
Composition of the Earth's Inner Core from High-pressure Sound Velocity Measurements in Fe-Ni-Si alloys
None
Date:
March 11, 2010
Creator:
Antonangeli, D.; Siebert, J.; Badro, J.; Farber, D. L.; Fiquet, G.; Morard, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Northern Ireland: The Peace Process
This report provides background information regarding political violence and the peace process in Northern Ireland. It includes further information about the devolved government and recurrent crises (1999-2002, 2003-2007 and 2008-2010), implementation of police reforms, recent events and ongoing challenges, relevant U.S. policy, and recent legislation.
Date:
March 11, 2015
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
Proton Irradiation Effects in Oxide-Confined Vertical Cavity Surface Emitting Laser (VCSEL) Diodes
Recent space experience has shown that the use of commercial optocouplers can be problematic in spacecraft, such as TOPEX/Poseidon, that must operate in significant radiation environments. Radiation--induced failures of these devices have been observed in space and have been further documented at similar radiation doses in the laboratory. The ubiquitous use of optocouplers in spacecraft systems for a variety of applications, such as electrical isolation, switching and power transfer, is indicative of the need for optocouplers that can withstand the space radiation environment. In addition, the distributed nature of their use implies that it is not particularly desirable to shield optocouplers for use in radiation environments. Thus, it will be important for the space community to have access to radiation hardened/tolerant optocouplers. For many microelectronic and photonic devices, it is difficult to achieve radiation hardness without sacrificing performance. However, in the case of optocouplers, one should be able to achieve both superior radiation hardness and performance for such characteristics as switching speed, current transfer ratio (CTR), minimum power usage and array power transfer, if standard light emitting diodes (LEDs), such as those in the commercial optocouplers mentioned above, are avoided, and VCSELs are employed as the emitter portion of the …
Date:
March 11, 1999
Creator:
Armendariz, M. G.; Barnes, C. E.; Choquette, K. D.; Guertin, S.; Hash, G. L.; Schwank, J. R. et al.
Object Type:
Article
System:
The UNT Digital Library
A review of the kinetic statistical strength model
This is a review of the Kinetic-Statistical Strength (KSS) model described in the report ``Models of Material Strength, Fracture and Failure`` by V. Kuropatenko and V. Bychenkov. The models for metals subjected to high strain rates (explosions) are focussed on. Model implementation appears possible in a hydrocode. Applying the model to the shock response of metals will require a data source for the Weibull parameter {alpha}{sub u}, short of measuing the strength of specimens of various sizes. Model validation will require more detail on the experiments successfully calculated by SPRUT. Evaluation of the KSS model is needed against other existing rate-dependent models for metals such as the Steinberg-Lund or MTS model on other shock experiments.
Date:
March 11, 1996
Creator:
Attia, A. V.
Object Type:
Report
System:
The UNT Digital Library
Search for CP Violation in Neutral D Meson Cabibbo-suppressedThree-body Decays
Using 385 fb{sup -1} of e{sup +}e{sup -} collision data collected at center-of-mass energies around 10.6 GeV, we search for time-integrated CP violation in the Cabibbo-suppressed decays D{sup 0}/{bar D}{sup 0} {yields} {pi}{sup -}{pi}{sup +}{pi}{sup 0} and D{sup 0}/{bar D}{sup 0} {yields} K{sup -}K{sup +}{pi}{sup 0} with both model-independent and model-dependent methods. Measurements of the asymmetries in amplitudes of flavor states and CP eigenstates provide constraints on theories beyond the Standard Model, some of which predict CP violation in amplitudes at the 1% level or higher. We find no evidence of CP violation and hence no conflict with the Standard Model.
Date:
March 11, 2008
Creator:
Aubert, B.
Object Type:
Article
System:
The UNT Digital Library
Rates, Polarizations, and Asymmetries in Charmless Vector-Vector B Decays
With a sample of approximately 89 million B{bar B} pairs collected with the BABAR detector, they measure branching fractions, determine the degree of longitudinal polarization, and search for direct CP violation in the decays B{sup 0} {yields} {phi}K*{sup 0} and B{sup +} {yields} {phi}K*{sup +}. They perform a search for other charmless vector-vector B decays involving {rho} and K*(892) resonances and observe the decays B{sup +} {yields} {rho}{sup 0} K*{sup +} and B{sup +} {yields} {rho}{sup 0}{rho}{sup +}. The branching fractions are measured to be {Beta}({phi}K*{sup 0}) = (11.1{sub -1.2}{sup +1.3} {+-} 1.1) x 10{sup -6}, {Beta}({phi}K*{sup +}) = (12.1{sub -1.9}{sup +2.1} {+-} 1.5) x 10{sup -6}, {Beta}({rho}{sup 0} K*{sup +}) = (7.7{sub -2.0}{sup +2.1} {+-} 1.4) x 10{sup -6}, and {Beta}({rho}{sup 0}{rho}{sup +}) = (9.9{sub -2.5}{sup +2.6} {+-} 2.5) x 10{sup -6}. The longitudinal polarization fractions are measured to be {Lambda}{sub L}/{Lambda}({phi}K*{sup 0}) = 0.65 {+-} 0.07 {+-} 0.04 and {Lambda}{sub L}/{Lambda}({phi}K*{sup +}) = 0.46 {+-} 0.12 {+-} 0.05. They measure the charge asymmetries: {Alpha}{sub CP}({phi}K*{sup 0}) = +0.04 {+-} 0.12 {+-} 0.02 and {Alpha}{sub CP}({phi}K*{sup +}) = +0.16 {+-} 0.17 {+-} 0.04.
Date:
March 11, 2003
Creator:
Aubert, B.; Barate, R.; Boutigny, D.; Gaillard, J.-M.; Hicheur, A.; Karyotakis, Y. et al.
Object Type:
Article
System:
The UNT Digital Library
Environmental monitoring at the Lawrence Livermore National Laboratory. 1981 annual report
This report gives methods and results of the 1981 radiation monitoring program at LLL for both radioactive and non-radioactive contamination from gaseous and liquid effluents. Off-site monitoring includes various radionuclides but especially tritium in the ecosystems. (PSB)
Date:
March 11, 1982
Creator:
Auyong, M.; Griggs, K.S. & Buddemeier, R.W.
Object Type:
Report
System:
The UNT Digital Library
Parameter identification in groundwater flow: a feasibility study
A set of first-order differential state equations is developed from taking finite differences of the partial differential equation that describes groundwater flow during a pump-drawdown test. The number of states in the model is a direct function of the number of discrete spatial segments used in the approximate model. This number of states is studied to determine a reasonably low-order model that preserves the accuracy of resulting simulations when compared with an available analytical solution. The resulting reduced-order model is then used in an extended Kalman filter for combined state and parameter estimation. This report summarizes work done in a recent pilot study to demonstrate the feasibility of these techniques in groundwater research and points the way toward other approaches to this problem area now under study.
Date:
March 11, 1980
Creator:
Azevedo, S. G.; Doerr, T. A.; Candy, J. V. & Pimentel, K. D.
Object Type:
Report
System:
The UNT Digital Library
POTENTIAL FOR HYDROGEN BUILDUP IN HANFORD SEALED AIR FILLED NUCLEAR STORAGE VESSELS
None
Date:
March 11, 2008
Creator:
BE, HEY
Object Type:
Report
System:
The UNT Digital Library
Solution to Monthly Problem #11418
None
Date:
March 11, 2009
Creator:
Bailey, David H. & Borwein, J. M.
Object Type:
Report
System:
The UNT Digital Library
Vitalinks
The objectives of the VITALINKS tabletop exercise are to: Raise awareness of infrastructure interdependency issues; Identify and focus on the most important vulnerabilities and restoration priorities resulting from infrastructure disruptions; Examine the resources (people and equipment) required to sustain systems under emergency conditions; Identify and highlight roles, responsibilities, and authorities (including trans-border issues); and Continue to foster a more effective interface among public and private sector service providers and public officials in developing and implementing critical infrastructure protection, mitigation, response, and recovery options.
Date:
March 11, 2002
Creator:
Baldwin, T. B.
Object Type:
Article
System:
The UNT Digital Library
Technical assessment of BY-1 12 liquid observation well (LOW) anomalous readings
This document contains a technical assessment of the cause and disposition of Interstitial Liquid Level(ILL) readings taken in February 1997 on Hanford waste tank 241-BY-112 that were below specified limits. Some readings were determined to be spurious while other readings were below the limit because of normal data scatter. The data assessment did discover that a new ILL had formed below the currently established baseline because of the normal drainage of the interstitial liquid over time. A new baseline and limit will be established. Because the new ILL appears to be stable and consistent with post saltwell pumping behavior, and because there is no other evidence to the contrary, the tank is judged not to be leaking.
Date:
March 11, 1997
Creator:
Barnes, D. A. & Reed, R. W.
Object Type:
Report
System:
The UNT Digital Library
Light duty utility arm startup plan
This Startup Plan encompasses activities necessary to perform startup and operation of the LDUA in Facility Group 3 tanks and complete turnover to CPO. The activities discussed in this plan will occur prior to, and following the US Department Energy, Richland Operations Office Operational Readiness Review. This startup plan does not authorize or direct any specific field activities or authorize a change of configuration. As such, this startup plan need not be Unresolved Safety Question (USQ) screened.
Date:
March 11, 1998
Creator:
Barnes, G. A.
Object Type:
Report
System:
The UNT Digital Library
Operations and maintenance manual for the LDUA supervisory control and data acquisition system (LDUA System 4200) and control network (LDUA System 4400)
This document defines the requirements applicable to the operation, maintenance and storage of the Supervisory Control and Data Acquisition System (SCADAS) and Control Network in support of the Light Duty Utility Arm (LDUA) operations.
Date:
March 11, 1998
Creator:
Barnes, G. A.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation of Wing Inlets for a Four-Engine Airplane
Report presenting an investigation in the propeller-research tunnel to develop wing-leading-edge inlets for locations between the inboard and outboard nacelles on each wing of a four-engine airplane. Testing was performed on the basic wing and original inlet as well as NACA-developed inlets for two versions of the airplane.
Date:
March 11, 1947
Creator:
Bartlett, Walter A., Jr. & Goral, Edwin B.
Object Type:
Report
System:
The UNT Digital Library