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Office of Scientific & Technical Information Technical Reports
222
Congressional Research Service Reports
106
Texas Patents
68
Texas Attorney General Opinions
33
Technical Report Archive and Image Library
32
Government Accountability Office Reports
29
National Advisory Committee for Aeronautics Collection
22
Defense Base Closure and Realignment Commission
16
Texas Register
10
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1 MeV electron irradiation of solid Xe nanoclusters in Al : an in-situ HRTEM study.
Thin film samples of a simple embedded nanocluster system consisting of solid Xe precipitates in Al have been subjected to 1 MeV electron irradiation in a high-voltage electron microscope. High-resolution images have been recorded on videotape in order to monitor the changes to the system resulting from the passage of electrons through the film. Inspection of the video recordings (in some cases frame-by-frame) reveals that complex, rapid processes occur under the electron beam. These include, movement of small clusters, coalescence of neighboring clusters, shape changes, the apparent melting and resolidification of the Xe, and the creation and annealing of extended defects within the Xe lattice. A tentative interpretation of some of the observations is presented in terms of the electron-induced displacement processes at the surface of the clusters.
Date:
December 5, 1997
Creator:
Donnelly, S. E.; Furuya, K.; Song, M.; Birtcher, R. C. & Allen, C. W.
Object Type:
Article
System:
The UNT Digital Library
100 Areas technical activities report -- Engineering, October, 1949
This report covers work done by the Physical Chemistry Group and the Pile Engineering Groups. Subjects covered are as follows: corrosion laboratory testing details; pile borescopic inspections; slug deformation details; Van Stone flange corrosion details; corrosion rate at elevated temperature; added control ink facility; borescope equipment and repair; water recirculation cooling tests; pile expansion; carbon dioxide experiment; special graphite measurements; graphite core sample; vertical thimble temperature; beta experiment; x-ray diffraction studies; thermal annealing; empty process tube temperatures; oxidation of graphite; thermal annealing -- interferometer measurements.
Date:
December 5, 1949
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
216-Day report for Tank 241-C-111, cores 58 and 59
Three core samples from tank C-111, and a field blank, were received by the 222-S laboratories. Cores 58, 59, and the field blank were analyzed in accordance with plans. A hot cell blank was analyzed at the direction of the hot cell chemist. No sample results exceeded the notification limits. Core 60 was not analyzed.
Date:
December 5, 1994
Creator:
Rice, A.D.
Object Type:
Report
System:
The UNT Digital Library
14C/C measurements support Andreev's internode method to determine lichen growth rates in Cladina stygia (Fr.) Ahti
Growth rates and the ability to date an organism can greatly contribute to understanding its population biology and community dynamics. 1n 1954, Andreev proposed a method to date Cladina, a fruticose lichen, using total thallus length and number of internodes. No research, however, has demonstrated the reliability of this technique or compared its estimates to those derived by other means. In this study, we demonstrate the utility of {sup 14}C/C ratios to determine lichen age and growth rate in Cladina stygia (Fr.) Ahti collected from northwestern Alaska, USA. The average growth rate using {sup 14}C/C ratios was 6.5 mm {center_dot} yr{sup -1}, which was not significantly different from growth rates derived by Andreev's internode method (average = 6.2 mm {center_dot} yr{sup -1}); thus, suggesting the reliability of Andreev's simple field method for dating lichens. In addition, we found lichen growth rates appeared to differ with geographic location, yet did not seem related to ambient temperature and total precipitation.
Date:
December 5, 2007
Creator:
Holt, E. & Bench, G.
Object Type:
Article
System:
The UNT Digital Library
1995 NPTS Databook
Policymakers rely on transportation statistics, including data on personal travel behavior, to formulate strategic transportation policies and to improve the safety and efficiency of the U.S. transportation system. Data on personal travel trends are needed to examine the reliability, efficiency, capacity, and flexibility of the Nation's transportation system to meet current demands and accommodate future demands; to assess the feasibility and efficiency of alternative congestion-alleviating technologies (e.g., high-speed rail, magnetically levitated trains, intelligent vehicle and highway systems); to evaluate the merits of alternative transportation investment programs; and to assess the energy-use and air-quality impacts of various policies. To address these data needs, the Department of Transportation (DOT) initiated an effort in 1969 to collect detailed data on personal travel. The 1969 survey was the first Nationwide Personal Transportation Survey (NPTS). The survey was conducted again in 1977, 1983, 1990, and 1995. The 1995 survey was cosponsored by four DOT agencies: Federal Highway Administration (FHWA), Bureau of Transportation Statistics (BTS), Federal Transit Administration (FTA), and National Highway Traffic Safety Administration (NHTSA). The primary objective of the survey was to collect trip-based data on the nature and characteristics of personal travel. Commercial and institutional travel were not part of the survey.
Date:
December 5, 2001
Creator:
Hu, P. S.
Object Type:
Report
System:
The UNT Digital Library
Accelerator physics and technology limitations to ultimate energy and luminosity in very large hadron colliders
The following presents a study of the accelerator physics and technology limitations to ultimate energy and luminosity in very large hadron colliders (VLHCs). The main accelerator physics limitations to ultimate energy and luminosity in future energy frontier hadron colliders are synchrotron radiation (SR) power, proton-collision debris power in the interaction regions (IR), number of events-per-crossing, stored energy per beam and beam-stability [1]. Quantitative estimates of these limits were made and translated into scaling laws that could be inscribed into the particle energy versus machine size plane to delimit the boundaries for possible VLHCs. Eventually, accelerator simulations were performed to obtain the maximum achievable luminosities within these boundaries. Although this study aimed at investigating a general VLHC, it was unavoidable to refer in some instances to the recently studied, [2], 200 TeV center-of-mass energy VLHC stage-2 design (VLHC-2). A more thorough rendering of this work can be found in [3].
Date:
December 5, 2002
Creator:
al., P. Bauer et
Object Type:
Article
System:
The UNT Digital Library
Acceptance Test Procedure for New Pumping Instrumentation and Control Skid U
This Acceptance Test Procedure (ATP) provides for the inspection and testing of the new Pumping Instrumentation and Control (PIC) skid designed as ''U''. The ATP will be performed after the construction of the PIC skid in the fabrication shop.
Date:
December 5, 2000
Creator:
Koch, M. R.
Object Type:
Report
System:
The UNT Digital Library
Access to Government Information In the United States
The Constitution of the United States makes no specific allowance for any one of the co-equal branches to have access to information held by the others and contains no provision expressly establishing a procedure for, or a right of, public access to government information. Nonetheless, Congress has legislated various public access laws. These include two records access statutes — the Freedom of Information Act and the Privacy Act — and two meetings access statutes — the Federal Advisory Committee Act and the Government in the Sunshine Act. This report provides background on the issue of government transparency and examines relevant litigation.
Date:
December 5, 2007
Creator:
Relyea, Harold C. & Kolakowski, Michael W.
Object Type:
Report
System:
The UNT Digital Library
Acetylene-Gas-Generating Lamp.
Patent for a new and useful acetylene gas lamp, including instructions and illustrations.
Date:
December 5, 1899
Creator:
Eldridge, Hilliary
Object Type:
Patent
System:
The Portal to Texas History
Acetylene-Gas Generator.
Patent for a new and improved gas generator, including instructions and illustrations.
Date:
December 5, 1899
Creator:
Schaefer, Henry P.
Object Type:
Patent
System:
The Portal to Texas History
(Acid rain workshop)
The traveler presented a paper entitled Susceptibility of Asian Ecosystems to Soil-Mediated Acid Rain Damage'' at the Second Workshop on Acid Rain in Asia. The workshop was organized by the Asian Institute of Technology (Bangkok, Thailand), Argonne National Laboratory (Argonne, Illinois), and Resource Management Associates (Madison, Wisconsin) and was sponsored by the US Department of Energy, the United Nations Environment Program, the United Nations Economic and Social Commission for Asia and the Pacific, and the World Bank. Papers presented on the first day discussed how the experience gained with acid rain in North America and Europe might be applied to the Asian situation. Papers describing energy use projections, sulfur emissions, and effects of acid rain in several Asian countries were presented on the second day. The remaining time was allotted to discussion, planning, and writing plans for a future research program.
Date:
December 5, 1990
Creator:
Turner, R. S.
Object Type:
Report
System:
The UNT Digital Library
Actinide Spectroscopy Workshop
Actinide materials present an extreme scientific challenge to the materials research community. The complex electronic structures of actinide materials result in many unusual and unique properties that have yet to be fully understood. The difficulties in handling, preparing, and characterizing actinide materials has frequently precluded investigations and has the limited the detailed understanding of these relevant, complex materials. However, modern experiments with actinide materials have the potential to provide key, fundamental information about many long-standing issues concerning actinide materials. This workshop focused on the scientific and technical challenges posed by actinide materials and the potential that synchrotron radiation approaches available at the ALS can contribute to improving the fundamental understanding of actinides materials. Fundamental experimental approaches and results, as well as theoretical modeling and computational simulations, were part of the workshop program.
Date:
December 5, 2004
Creator:
Tobin, J.G. & Shuh, D.K.
Object Type:
Article
System:
The UNT Digital Library
Addendum 3 to CSAR 80-027, Use of calorimeter 109B for fissile material measurement
This modification to the Plutonium Finishing Plant (PFP) calorimeter system involves removing current calorimeter No. 3 from the water bath and replacing it with a calorimeter that can accommodate larger diameter items (an oversize can). The inside diameters of both the sample and the reference cells will be increased to 5.835 inches at the top opening and to 5.22 inches at the bottom, the 8 inch high measurement zone. This Addendum 3 to Criticality Safety Analysis Report 80-027 examines criticality safety during the use of the modified calorimeter (Calorimeter 109B) with enlarged cell tube diameters to assure that an adequate margin of subcriticality is maintained for all normal and contingency conditions.
Date:
December 5, 1994
Creator:
Chiao, T.
Object Type:
Report
System:
The UNT Digital Library
Adjustable Window-Shade
Patent for an adjustable window-shade that is more useful and can be "raised and lowered in its entirety" (lines 10-11) including instructions and illustration.
Date:
December 5, 1916
Creator:
Hayes, George Daniel
Object Type:
Patent
System:
The Portal to Texas History
Advanced process research and development to enhance metals and materials recycling.
Innovative, cost-effective technologies that have a positive life-cycle environmental impact and yield marketable products are needed to meet the challenges of the recycling industry. Four materials-recovery technologies that are being developed at Argonne National Laboratory in cooperation with industrial partners are described in this paper: (1) dezincing of galvanized steel scrap; (2) material recovery from auto-shredder residue; (3) high-value-plastics recovery from obsolete appliances; and (4) aluminum salt cake recycling. These technologies are expected to be applicable to the production of low-cost, high-quality raw materials from a wide range of waste streams.
Date:
December 5, 1997
Creator:
Daniels, E. J.
Object Type:
Article
System:
The UNT Digital Library
Aerodynamic and hydrodynamic characteristics of a deck-inlet multijet water-based-aircraft configuration designed for supersonic flight
From Introduction: "In the present investigation, lift, drag, and pitching moment were determined over a Mach number range 0.6 to 1.42. Smooth-water takeoff and landing stability and resistance were investigated. A brief check of the rough-water spray and behavior was also made."
Date:
December 5, 1956
Creator:
Bielat, Ralph P.; Coffee, Claude W., Jr. & Petynia, William W.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic levitation : an approach to microgravity.
Measurements of the thermophysical and structural properties of liquid materials at high temperature have undergone considerable development in the past few years. Following improvements in electromagnetic levitation, aerodynamic levitation associated with laser heating has shown promise for assessing properties of different molten materials (metals, oxides, and semiconductors), preserving sample purity over a wide range of temperatures and under different gas environments. The density, surface tension and viscosity are measured with a high-speed video camera and an image analysis system. Results on nickel and alumina show that small droplets can be considered in the first approximation to be under microgravity conditions. Using a non-invasive contactless technique recently developed to measure electrical conductivity, results have been extended to variety of materials ranging from liquid metals and liquid semiconductors to ionically conducting materials. The advantage of this technique is the feasibility of monitoring changes in transport occurring during phase transitions and in deeply undercooled states.
Date:
December 5, 2000
Creator:
Glorieux, B.; Saboungi, M.-L.; Millot, F.; Enderby, J. & Rifflet, J.-C.
Object Type:
Article
System:
The UNT Digital Library
Aerodynamic load distribution over a 45 degree swept wing having a spoiler-slot-deflector aileron and other spoiler ailerons for Mach numbers from 0.60 to 1.03
Report discussing an investigation of a 45 degree swept-back-wing-body combination with flap spoiler ailerons, deflector ailerons, and a spoiler-slot-deflector aileron. The pressures were measured from Mach numbers 0.60 to 1.03 and at various angles of attack.
Date:
December 5, 1957
Creator:
West, F. E., Jr.; Whitcomb, Charles F. & Schmeer, James W.
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Study of a Wing-Fuselage Combination Employing a Wing Swept Back 63 Degrees: Effects at Subsonic Speeds of a Constant-Chord Elevon on a Wing Cambered and Twisted for a Uniform Load at a Lift Coefficient of 0.25
Report presenting testing of a cambered and twisted wing with constant-chord elevons with a slender fuselage to determine the longitudinal and lateral control from the elevons for a range of Mach numbers. Results regarding lift, drag, pitching-moment, and rolling-moment characteristics for various elevon deflections are provided.
Date:
December 5, 1949
Creator:
Jones, J. Lloyd & Demele, Fred A.
Object Type:
Report
System:
The UNT Digital Library
Aeroplane
Patent for an aeroplane that will maintain its balance in the air automatically
Date:
December 5, 1911
Creator:
McManus, Augustus F. W.
Object Type:
Patent
System:
The Portal to Texas History
Air-Supplying Device For Diving Purposes.
Patent for a new and useful air supplying device for diving purposes, including instructions and illustrations.
Date:
December 5, 1899
Creator:
Hensley, Frank A.
Object Type:
Patent
System:
The Portal to Texas History
Alaskan Oil-Environment vs. Economy: A Compilation of Selected Writings
This report provides a compilation of writings from news media, professional magazines and journals, and government agencies regarding the environmental risks and considerations that must be taken regarding Alaskan oil drilling and transportation and the economic benefits of Alaskan oil drilling and transportation.
Date:
December 5, 1973
Creator:
Siehl, George H.
Object Type:
Report
System:
The UNT Digital Library
ALS user meeting features 10th anniversary celebration
The Advanced Light Source (ALS) saw first light on October 5, 1993, not quite to the day but close to 10 years before the 2003 ALS Users Association meeting, held October 6-8. Fittingly, the proceedings included retrospectives from two of the key players in the early history of the ALS, David Attwood and Jay Marx, and a display of photographs chronicling its construction and commissioning. Science highlights, highlights from young researchers, and posters constituted the meat of the program on Monday and Tuesday morning, while workshops took over Tuesday afternoon and all day Wednesday.
Date:
December 5, 2003
Creator:
Robinson, Art
Object Type:
Article
System:
The UNT Digital Library
Alternative Transportation Fuels and Vehicles: Energy, Environment, and Development Issues
This report reviews several issues relating to alternative fuels and vehicles, mainly to combat dependence on petroleum imports and reduce greenhouse gas emissions. The report discusses the advantages and drawbacks of various alternative fuels and vehicles, as well as related legislation.
Date:
December 5, 2000
Creator:
Yacobucci, Brent D.
Object Type:
Report
System:
The UNT Digital Library