Collection
Office of Scientific & Technical Information Technical Reports
1,068
Congressional Research Service Reports
122
Government Accountability Office Reports
108
Texas Patents
58
Technical Report Archive and Image Library
46
Texas Attorney General Opinions
36
Texas State Publications
24
TRAIL Microcard Collection
23
National Advisory Committee for Aeronautics Collection
17
Texas Register
10
8 More
Serial/Series Title
Atomic Energy Commission Reports
14
NACA Research Memorandums
14
Texas Register
10
Texas Motor Vehicle Traffic Accident Summaries
8
Oak Ridge National Laboratory Reports
6
CF (Series)
5
CRS Issue Briefs
4
MUSC Environmental Biosciences Progress Report
4
113th Congress
3
NACA Technical Reports
3
80 More
Country
Decade
Month
Day
Language
1,478 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,478
next
E-1 CAM Revision 4
this report is a descriptive journey of the E-1 CAM Revision 4
Date:
April 30, 1970
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
2-D and 3-D Elastic Modeling with Shared Seismic Models
Several elastic models, both 2-D and 3-D, are being built for use in calculating synthetic elastic seismic data. The models will be made available to the research community, along with the synthetic data that are being calculated from them. These shared models have been proposed or contributed by participants in a collaborative industry, national laboratory, and university research project. The purpose of the modeling is to provide synthetic data to better understand elastic wave propagation and the effects of structural and stratigraphic complexities. The 2-D models are easier to design and change and synthetic calculations can be run relatively quickly in them. It will be possible to alter their layer properties and calculate time-lapse data sets from them. Field data will be available to accompany many of the 2-D models. 3-D models are more realistic, but more difficult to design and change. They also require considerably more computing resources to calculate synthetic data from them. A new 3-D model is being designed, and will be used for computing synthetic elastic data.
Date:
April 30, 2002
Creator:
House, L.; Marfurt, K. J.; Larsen, S. & Martin, G. S.
Object Type:
Article
System:
The UNT Digital Library
3-D elastic wave scattering by a layer containing vertical periodic fractures
None
Date:
April 30, 2002
Creator:
Nakagawa, Seiji; Nihei, Kurt T.; Myer, Larry R. & Majer, Ernest L.
Object Type:
Article
System:
The UNT Digital Library
A 5-cm dipole for the SSC-DE-1
A 5cm SSC superconducting dipole that develops 6.6 tesla at 5790 A is proposed. The two layer magnet has 12% more transfer function than the present design as a result of using thin collars and close in'' iron. The thin collars provide precise positioning of the coils; they also provide minimum prestress (perhaps 2000 psi) as aid for magnet assembly. A welded skin around the iron provides the final prestress and shapes and the coil geometry. A prestressed aluminum bar placed between the vertically split iron yokes provides precise control of the gap between yokes halves and is designed to allow gap to close tightly during cooldown so that there is no decrease of prestress. In order to reduce the effect of iron saturation on the field multipoles the iron ID has been optimized to an elliptical shape. The coil inner layer is a 30 strand cable with 1.3:1 cu/sc. The outer layer is a 36 strand cable wit 1.8:1 cu/sc. At the operating field of 6.6 tesla the current density in the copper is 666 A/mm{sup 2} and 760 A/mm{sup 2} in the inner and outer layers respectively. The magnet short sample performance is limited by the inner layer. …
Date:
April 30, 1990
Creator:
Caspi, S.
Object Type:
Report
System:
The UNT Digital Library
A-6 pyrofoil wrapper strain capability prerequisite proof tests (EML-93)
Proof test on the NRX-A6 reactor-grade foil with images.
Date:
April 30, 1975
Creator:
Hengstenberg, T.F.
Object Type:
Report
System:
The UNT Digital Library
200-UP-2 operable unit radiological surveys
This report summarizes and documents the results of the radiological surveys conducted from August 17 through December 16, 1993 over a partial area of the 200-UP-2 Operable Unit, 200-W Area, Hanford Site, Richland, Washington. In addition, this report explains the survey methodology of the Mobile Surface Contamination Monitor 11 (MSCM-II) and the Ultra Sonic Ranging And Data System (USRADS). The radiological survey of the 200-UP-2 Operable Unit was conducted by the Site Investigative Surveys/Environmental Restoration Health Physics Organization of the Westinghouse Hanford Company. The survey methodology for the majority of area was based on utilization of the MSCM-II or the USRADS for automated recording of the gross beta/gamma radiation levels at or near six (6) inches from the surface soil.
Date:
April 30, 1994
Creator:
Wendling, M. A.
Object Type:
Report
System:
The UNT Digital Library
234-5 bank tank circulation studies
In the Plutonium Reclamation Facility a critically-safe geometry of the processing vessels, combined with economical utilization of building space, has resulted in manifolded, vertical tanks for blending, receiving, holding, etc. The pumps attached to the bottom-outlet manifolds of the tanks are of a canned motor type. The extremely short life of these pumps (considerably below that expected even in severe abrasive and corrosive service) prompted a series of studies using glass tanks containing process solutions which, except for the associated radioactivity, duplicate plant process streams. Circulation, blending, and reaction characteristics of simulated process streams in glass duplicates of the 234-5 Bank Tanks TK-17, TK-27, and TK-37 revealed circulation patterns that result in intermittent cavitation within the canned motor transfer pumps. This cavitation, combined with the unavoidable corrosion and abrasion, rapidly destroys the pumps. The circulation patterns, under varying liquid levels as encountered in plant operation, cause single and dual phase transfer of the organic aqueous solutions to process colunans at different times, which results in flooding and erratic extraction efficencies. Reduction of cavitation and elimination of mixed phase transfer has been demonstrated by means of parallel controllable orifices in the external circulation lines. Elimination of cavitation and uniformity of mixing …
Date:
April 30, 1974
Creator:
Dunn, J.
Object Type:
Report
System:
The UNT Digital Library
The 2009 H1N1 "Swine Flu" Outbreak: An Overview
This report provides an introduction to the situation regarding the potential of a global human influenza pandemic caused by the new H1N1 flu strain. It includes a brief chronology of events; a discussion of key actions taken and authorities invoked by the WHO and the U.S. government; and information about key U.S. government pandemic flu planning documents.
Date:
April 30, 2009
Creator:
Lister, Sarah A. & Redhead, C. S.
Object Type:
Report
System:
The UNT Digital Library
2010 Census: Cooperation with Enumerators Is Critical to a Successful Headcount
Testimony issued by the Government Accountability Office with an abstract that begins "On May 1, 2010, the U.S. Census Bureau (Bureau) will launch its massive follow-up effort with the roughly 48 million households that did not mail back their census forms (130 million forms were delivered). As part of this nonresponse follow-up effort, over 600,000 enumerators will fan out across the country, personally contacting nonresponding housing units as many as six times in an effort to ensure everyone is counted. As requested, GAO's testimony in Los Angeles (L.A.) focuses on the importance of census participation, paying particular attention to (1) the Bureau's preparedness for nonresponse follow-up in terms of workload and staffing levels, (2) why it will be critical for Angelenos and others across the country to cooperate with enumerators during nonresponse follow-up, and (3) key steps the Bureau needs to take moving forward to ensure nonresponse follow-up is timely and accurate. The testimony is based on previously issued and ongoing GAO work."
Date:
April 30, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
2011 Annual Health Physics Report for the HEU transparency Program
During the 2008 calendar year, Lawrence Livermore National Laboratory (LLNL) provided health physics support for the Highly Enriched Uranium (HEU) Transparency Program for external and internal radiation protection. They also provided technical expertise related to BDMS radioactive sources and Russian radiation safety regulatory compliance. For the calendar year 2008, there were 158 person-trips that required dose monitoring of the U.S. monitors. Of the 158 person-trips, 148 person-trips were SMVs and 10 person-trips were Transparency Monitoring Office (TMO) trips. There were 6 monitoring visits by TMO monitors to facilities other than UEIE and 8 to UEIE itself. There were three monitoring visits (source changes) that were back-to-back with a total of 24 monitors. LLNL's Hazard Control Department laboratories provided the dosimetry services for the HEU Transparency monitors. In 2008, the HEU Transparency activities in Russia were conducted in a radiologically safe manner for the HEU Transparency monitors in accordance with the expectations of the HEU Transparency staff, NNSA and DOE. The HEU Transparency now has thirteen years of successful experience in developing and providing health and safety support in meeting its technical objectives.
Date:
April 30, 2012
Creator:
Radev, R.
Object Type:
Report
System:
The UNT Digital Library
2012 Computation Annual Report
None
Date:
April 30, 2013
Creator:
Crawford, D. L.
Object Type:
Report
System:
The UNT Digital Library
Ab initio study of optical absorption spectra of semiconductors and conjugated polymers
The effects of electron-hole interaction on the optical properties of a variety of materials have been calculated using an ab initio method based on solving the Bethe-Salpeter equation. Results on selected semiconductors, insulators, and semiconducting polymers are presented. In the cases of alpha-quartz (SiO2) and poly-phenylene-vinylene, resonant excitonic states qualitatively alter the absorption spectra.
Date:
April 30, 2000
Creator:
Tiago, M.L.; Chang, Eric K.; Rohlfing, Michael & Louie, Steven G.
Object Type:
Article
System:
The UNT Digital Library
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:
April 30, 2004
Creator:
Bamberger, Robert L.
Object Type:
Report
System:
The UNT Digital Library
The Ability of the United States Federal Radiological Monitoring and Assessment Center to Collect and Disseminate Environmental Measurements during Radiological Emergencies
The Federal Radiological Monitoring and Assessment Center (FRMAC) is the United States’ response organization for radiological emergencies. The FRMAC is structured as an operations center and employs the combined resources of several federal agencies to respond to any disaster resulting in the release of radioactivity. The mission of the FRMAC is to support state and local authorities in the gathering of environmental data using an array of survey equipment ranging from alpha probes, beta/gamma probes, and high-purity germanium (HPGe) spectroscopy to the gathering of physical samples. Once collected, the data are projected on maps to assist public officials make protective action decisions. In addition to the accumulation of data, it is the legal obligation of the FRMAC to keep archival records of all data points and their actions. During an event, it is conceivable that hundreds to thousands of sample points will be recorded over a relatively short time. It is in the interest of the federal government and public that the information collected be put to the best use as fast as possible. Toward this end, the Remote Sensing Laboratory, working under the direction of the United States Department of Energy’s National Nuclear Security Administration, is investigating the use …
Date:
April 30, 2007
Creator:
Essex, Craig Marianno and James
Object Type:
Article
System:
The UNT Digital Library
Abortion: Public opinion
This report gives details aboutpublic opinions on abortion.
Date:
April 30, 1981
Creator:
Crocker, Royce
Object Type:
Report
System:
The UNT Digital Library
Aboveground Oil Storage Tanks: More Complete Facility Data Could Improve Implementation of EPA's Spill Prevention Program
A letter report issued by the Government Accountability Office with an abstract that begins "Oil leaks from aboveground tanks have contaminated soil and water, threatening human health and wildlife. To prevent damage from oil spills, the Environmental Protection Agency (EPA) issued the Spill Prevention, Control, and Countermeasure (SPCC) rule in 1973. EPA's 10 regions inspect oil storage facilities to ensure compliance with the rule. EPA estimates that about 571,000 facilities are subject to this rule. Some states also regulate oil storage tanks. GAO determined (1) how EPA regions implement the SPCC program, (2) the data EPA has to implement and evaluate the program, and (3) whether some states' tank programs suggest ways for EPA to improve its program. GAO surveyed all 10 EPA regions and interviewed officials in EPA and six states selected on the basis of experts' recommendations, among other criteria."
Date:
April 30, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Absolute calibration of neutron detectors in the 10-30 MeV range
None
Date:
April 30, 1975
Creator:
Cookson, J. A.; Hussian, M.; Uttley, C. A.; Fowler, J. L. & Schwartz, R. B.
Object Type:
Article
System:
The UNT Digital Library
Absolute length measurement at high pressure
A length-measurement systcm is described that can make absolute length- change measurements of a meter-long specimen within a pressure vessel (to pressures of 8 kbar) with a fractional error of 3 x 10/sup -8/ even when changes in length of 4 cm occur. Possible uses of such a system for measuring the volume thermal expansivity (at pressure) and the isothermal bulk modulus (at pressure) are described. Moreover, it is noted that, when this system is combined with an ultrasonic velocity measurement system, the adiabatic bulk modulus (at pressure) and Gruneisen parameter as a function of pressure can be directly determined and the absolute pressure itself can be measured. (auth)
Date:
April 30, 1974
Creator:
Lincoln, P. C. & Ruoff, A. L.
Object Type:
Report
System:
The UNT Digital Library
Acceptability of risk from radiation: Application to human space flight
This one of NASA`s sponsored activities of the NCRP. In 1983, NASA asked NCRP to examine radiation risks in space and to make recommendations about career radiation limits for astronauts (with cancer considered as the principal risk). In conjunction with that effort, NCRP was asked to convene this symposium; objective is to examine the technical, strategic, and philosophical issues pertaining to acceptable risk and radiation in space. Nine papers are included together with panel discussions and a summary. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.
Date:
April 30, 1997
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
ACCU Core Sampling/Storage Device for VOC Analysis
The Accu Core sampler system consists of alternating cylindrical clear acrylic sections and one-inch cylindrical stainless steel sections arranged in clear shrink wrap. The set of alternating acrylic and stainless steel sections in the shrink wrap are designed to fit in a Geoprobe dual-tube penetrometer for collection of continuous soil cores. The clear acrylic sections can have 1/2-inch access holes for easy soil headspace screening without violating the integrity of the adjacent stainless steel sections. The Accu Core sampler system can be used to store a soil sample collected in the stainless steel section by capping the ends of the section so it becomes a sample storage container. The sampler system can also be used to collect a subsurface soil sample in one of the sections that can be directly extruded from the section into a container for storage during shipment to the laboratory. In addition, the soil in a sampler section can be quickly sub-sampled using a coring tool and extruded into a storage container so the integrity of the soil is not disrupted and the potential for VOC loss during sub-sampling is greatly reduced. A field validation study was conducted to evaluate the performance of the Accu Core …
Date:
April 30, 2007
Creator:
Sorini, Susan S.; Schabron, John F. & Sanderson, Mark M.
Object Type:
Report
System:
The UNT Digital Library
Acoustic Energy: An Innovative Technology for Stimulating Oil Wells
The objective of this investigation was to demonstrate the effectiveness of sonication in reducing the viscosity of heavy crude oils. Sonication is the use of acoustic or sound energy to produce physical and/or chemical changes in materials, usually fluids. The goal of the first project phase was to demonstrate a proof of concept for the project objective. Batch tests of three commercially available, single-weight oils (30-, 90-, and 120-wt) were performed in the laboratory. Several observations and conclusions were made from this series of experiments. These include the following: (1) In general, the lower the acoustic frequency, the greater the efficiency in reducing the viscosity of the oils; (2) Sonication treatment of the three oils resulted in reductions in viscosity that ranged from a low of 31% to a high of 75%; and (3) The results of the first phase of the project successfully demonstrated that sonication could reduce the viscosity of oils of differing viscosity. The goal of the second project phase was to demonstrate the ability of sonication to reduce the viscosity of three crude oils ranging from a light crude to a heavy crude. The experiments also were designed to examine the benefits of two proprietary chemical …
Date:
April 30, 2006
Creator:
Edgar, Dorland E.; Peters, Robert W.; Johnson, Donald O.; Paulsen, P. David & Roberts, Wayne
Object Type:
Report
System:
The UNT Digital Library
Acoustical Imaging and Mechanical Properties of Soft Rock and Marine Sediments Progress Report: January-March 2002
Three major goals were accomplished during this phase. First, a study was completed of the effects of stress-induced changes in anisotropic elastic moduli in sandstone. Second, a new method for measuring the anisotropic poroelastic moduli from acoustic data was developed. Third, a series of triaxial experiments were conducted on unconsolidated sands to identify pressure/stress conditions where liquefaction occurs under high confining pressures. Stress-induced changes in anisotropic Young's moduli and shear moduli were observed during deformational pathway experiments. A new method was made for the acquisition of compressional and shear wave velocities along a series of 3-dimensional raypaths through a core sample as it is subjected to deformation. Three different deformational pathway experiments were conducted. During the hydrostatic deformation experiment, little or no anisotropy was observed in either the Young's moduli or shear moduli. Significant deformational anisotropies were observed in both moduli during the uniaxial strain test and the triaxial compression experiment but each had a different nature. During the triaxial experiment the axial and lateral Young's moduli and shear moduli continued to diverge as load was applied. During the uniaxial strain experiment the anisotropy was ''locked in'' early in the loading phase but then remained steady as both the confining …
Date:
April 30, 2002
Creator:
Scott Thurman E., Jr.; Abousleiman, Younane & Zaman, Musharraf
Object Type:
Report
System:
The UNT Digital Library
Adapting Wireless Technology to Lighting Control and Environmental Sensing
Although advanced lighting control systems offer significant energy savings, the high cost of retrofitting buildings with advanced lighting control systems is a barrier to adoption of this energy-saving technology. Wireless technology, however, offers a solution to mounting installation costs since it requires no additional wiring to implement. To demonstrate the feasibility of such a system, a prototype wirelessly-controlled advanced lighting system was designed and built. The system includes the following components: a wirelessly-controllable analog circuit module (ACM), a wirelessly-controllable electronic dimmable ballast, a T8 3-lamp fixture, an environmental multi-sensor, a current transducer, and control software. The ACM, dimmable ballast, multi-sensor, and current transducer were all integrated with SmartMesh{trademark} wireless mesh networking nodes, called motes, enabling wireless communication, sensor monitoring, and actuator control. Each mote-enabled device has a reliable communication path to the SmartMesh Manager, a single board computer that controls network functions and connects the wireless network to a PC running lighting control software. The ACM is capable of locally driving one or more standard 0-10 Volt electronic dimmable ballasts through relay control and a 0-10 Volt controllable output, in addition to 0-24 Volt and 0-10 Volt inputs. The mote-integrated electronic dimmable ballast is designed to drive a standard 3-lamp …
Date:
April 30, 2006
Creator:
Teasdale, Dana; Rubinstein, Francis; Watson, David S. & Purdy, Steve
Object Type:
Report
System:
The UNT Digital Library
Additional Posthearing Questions Related to Proposed Department of Homeland Security (DHS) Human Capital Regulations
Correspondence issued by the General Accounting Office with an abstract that begins "On February 25, 2004, Congress heard testimony at a hearing entitled "The Key to Homeland Security: The New Human Resources System." This report responds to additional questions posed by Senator Akaka and Senator Lautenberg."
Date:
April 30, 2004
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library