Collection
Office of Scientific & Technical Information Technical Reports
242
Congressional Research Service Reports
149
Texas Attorney General Opinions
48
Texas Patents
43
Government Accountability Office Reports
33
Technical Report Archive and Image Library
30
National Advisory Committee for Aeronautics Collection
22
Texas State Publications
17
Texas Laws and Resolutions Archive
14
Texas Register
7
7 More
Serial/Series Title
NACA Research Memorandums
19
83rd Legislature of Texas
10
CRS Issue Briefs
10
Senate Bills
7
Texas Register
7
110th Congress
6
San Antonio Board of Adjustment Monthly Report
6
San Antonio Board of Review for Historic Districts and Landmarks Monthly Report
6
San Antonio Monthly Permit Report
6
San Antonio Monthly Reports
6
41 More
Decade
Month
Day
Language
588 Matching Results
Results open in a new window/tab.
Aerodynamic characteristics with fixed and free transition of a modified delta wing in combination with fuselage at high subsonic speeds
From Introduction: "An investigation of the high-speed aerodynamic characteristics of a modified delta wing in combination with a fuselage was conducted in the Langley high-speed 7- by 10-foot tunnel. The model was tested on the sting support system through a Mach number range of 0.40 to 0.90 with both free and fixed transition. Because of the nature of the transition effect, the results seemed to be of the general interest and are presented in the present paper."
Date:
May 2, 1950
Creator:
Polhamus, Edward C. & King, Thomas J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Current Issues and U.S. Policy
The United States and its allies are helping Afghanistan emerging from more than 22 years of warfare, although substantial risk to Afghan stability remains. Before the U.S. military campaign against the orthodox Islamist Taliban movement began on October 7, 2001, Afghanistan had been mired in conflict since the Soviet invasion of Afghanistan in 1979. The defeat of the Taliban has enabled the United States and its coalition partners to send forces throughout Afghanistan to search for Taliban and Al Qaeda fighters and leaders that remain at large, including Osama bin Laden. As the war against remaining Al Qaeda and Taliban elements winds down, the United States is shifting its military focus toward stabilizing the interim government, including training a new Afghan national army, and supporting the international security force (ISAF) that is helping the new government provide security.
Date:
May 2, 2003
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
Afghanistan: Soviet Invasion and U.S. Response
The Soviet invasion of Afghanistan has raised a number of serious issues and choices for the United States. The train of events seem likely to have an important influence on overall American foreign policy in the 1980s. Reassessment of Soviet motives and of U.S. roles in the world are already in progress. Emerging American attitudes, in turn, will shape more specific policy decisions on several issues, which this issue brief discusses.
Date:
May 2, 1980
Creator:
Library of Congress. Foreign Affairs and National Defense Division.
Object Type:
Report
System:
The UNT Digital Library
Africa: U.S. Foreign Assistance Issues
This report discusses the issue of U.S. economic assistance to sub-Saharan Africa, highlighting the importance of continued assistance in light of U.S. national security and also various U.S.-led efforts to promote reform amongst African citizens themselves. U.S. assistance finds its way to Africa through a variety of channels, including the USAID-administered DA program, food aid programs, and indirect aid provided through international financial institutions and the United Nations.
Date:
May 2, 2001
Creator:
Copson, Raymond W.
Object Type:
Report
System:
The UNT Digital Library
Agricultural Disaster Assistance
This report discusses the ongoing major USDA disaster programs designed to help crop producers recover from the financial effects of natural disasters — federal crop insurance, noninsured assistance program (NAP) payments, and emergency disaster loans.
Date:
May 2, 2007
Creator:
Chite, Ralph M.
Object Type:
Report
System:
The UNT Digital Library
AIDS in Africa
Sub-Saharan Africa has been far more severely affected by AIDS than any other part of the world. The United Nations reports that 29.4 million adults and children are infected with the HIV virus in the region, which has about 10% of the world's population but more than 70% of the worldwide total of infected people. This report discusses this issue in detail, including the cause of the African AIDS epidemic, the social and economic consequences, response and treatment, and U.S. policy.
Date:
May 2, 2003
Creator:
Copson, Raymond W.
Object Type:
Report
System:
The UNT Digital Library
Air-Pipe Coupling.
Patent for an improved air-pipe coupling that is airtight and watertight and has a flexible union for railroad cars.
Date:
May 2, 1893
Creator:
Thomas, James Bryant
Object Type:
Patent
System:
The Portal to Texas History
Alternative Fuels and Advanced Technology Vehicles: Issues in Congress
Key components of federal policies to reduce fuel consumption include the promotion of alternatives to petroleum fuels and the promotion of more efficient vehicles. This report provides an overview of current issues surrounding alternative fuels and advanced technology vehicles — issues discussed in further detail in other CRS reports referred to in each section.
Date:
May 2, 2007
Creator:
Yacobucci, Brent D.
Object Type:
Report
System:
The UNT Digital Library
Altitude-wind-tunnel investigation of AN-F-58 fuel in experimental version of J47 turbojet engine
An altitude-wind-tunnel investigation of the performance of AN-F-58 and AN-F-32 fuels in an experimental turbojet engine was conducted over a range of simulated altitudes and flight Mach numbers. Combustion efficiencies obtained with AN-F-58 and AN-F-32 fuels were approximately equal. The minimum-speed altitude operational limit was essentially the same with either AN-F-58 or AN-F-32 fuel. Starting characteristics of the two fuels were approximately the same at low wind milling speeds. Visual observation showed no apparent differences in the carbon-deposition rates of AN-F-58 and AN-F-32 fuels.
Date:
May 2, 1949
Creator:
Meyer, Carl L.
Object Type:
Report
System:
The UNT Digital Library
Amtrak: Budget and Reauthorization
This report is on Amtrak: Budget and Reauthorization.
Date:
May 2, 2006
Creator:
Frittelli, John & Peterman, David Randall
Object Type:
Report
System:
The UNT Digital Library
Analysis of Shock-Void Experiment
The authors compare CALE simulations with recent experimental results of a laser-induced shock traversing a spherical under-dense region (''void''). In this report the experimental results are described, as well as several numerical attempts at explaining the observed radiographs. The conclusion is that the numerical simulations at this time cannot satisfactorily explain the experiment. The simulations also indicate that the introduction of air gaps between the under-dense sphere and the surrounding foam can greatly change the behavior of the shocked sphere. Thus fabrication details may play an important role in the detailed evolution of this experiment. Regardless of the simulations, analysis of the observed time sequence indicates that reproducibility of this experiment may be a factor. To settle this issue, further experiments of this kind will be required.
Date:
May 2, 2003
Creator:
Woods, D T; Robey, H & Stry, P
Object Type:
Report
System:
The UNT Digital Library
An analysis of the tritium content in fish from Upper Three Runs Creek
In November of 1988 the F/H-area effluent treatment facility (ETF) began releasing treated waste water to Upper Three Runs Creek. Previous to that time, there has been minimal discharge of plant waste water to this tributary of the Savannah River. The ETF is designed to remove the toxic and radioactive waste materials from the effluent stream and to meet the discharge limits of the South Carolina Department of Health and Environmental Control (SCDHEC). The only radioactive nuclide not removed by the process is tritium. Tritium, an isotope of hydrogen, is chemically associated with the water molecules in the waste stream and can not be economically removed at this time. The objective of this study was to determine the relationship between the concentration of tritium in the stream water and the concentration of tritium in the fish. Fish collections were made at two locations. The most upstream location was 50 meters downstream from the SRS Road C bridge. This is immediately downstream of the effluent discharge pipe from the ETF. The other location was at the bridge of SRS Road A (SC Highway 125). The water is removed from the fish by freeze drying under vacuum. This study suggests that, on …
Date:
May 2, 1991
Creator:
Murphy, C. E. Jr.
Object Type:
Report
System:
The UNT Digital Library
An analysis of the tritium content in fish from Upper Three Runs Creek
In November of 1988 the F/H-area effluent treatment facility (ETF) began releasing treated waste water to Upper Three Runs Creek. Previous to that time, there has been minimal discharge of plant waste water to this tributary of the Savannah River. The ETF is designed to remove the toxic and radioactive waste materials from the effluent stream and to meet the discharge limits of the South Carolina Department of Health and Environmental Control (SCDHEC). The only radioactive nuclide not removed by the process is tritium. Tritium, an isotope of hydrogen, is chemically associated with the water molecules in the waste stream and can not be economically removed at this time. The objective of this study was to determine the relationship between the concentration of tritium in the stream water and the concentration of tritium in the fish. Fish collections were made at two locations. The most upstream location was 50 meters downstream from the SRS Road C bridge. This is immediately downstream of the effluent discharge pipe from the ETF. The other location was at the bridge of SRS Road A (SC Highway 125). The water is removed from the fish by freeze drying under vacuum. This study suggests that, on …
Date:
May 2, 1991
Creator:
Murphy, C. E. Jr.
Object Type:
Report
System:
The UNT Digital Library
Angular Distributions in the Decays B to K*l+l-
The authors use a sample of 384 million B{bar B} events collected with the BABAR detector at the PEP-II e{sup +}e{sup -} collider to study angular distributions in the rare decays B {yields} K*{ell}{sup +}{ell}{sup -}, where {ell}{sup +}{ell}{sup -} is either e{sup +}e{sup -} or {mu}{sup +}{mu}{sup -}. For low dilepton invariant masses, m{sub {ell}{ell}} < 2.5 GeV/c{sup 2}, they measure a lepton forward-backward asymmetry {Alpha}{sub FB} = 0.24{sub -0.23}{sup +0.18} {+-} 0.05 and K* longitudinal polarization F{sub L} = 0.35 {+-} 0.16 {+-} 0.04. For m{sub {ell}{ell}} > 3.2 GeV/c{sup 2}, they measure {Alpha}{sub FB} = 0.76{sub -0.32}{sup +0.52} {+-} 0.07 and F{sub L} = 0.71{sub -0.22}{sup 0.20} {+-} 0.04.
Date:
May 2, 2008
Creator:
Collaboration, The BABAR & Aubert, B.
Object Type:
Article
System:
The UNT Digital Library
Annual Report of the Boy Scouts of America: 1923
Annual report submitted by the Boy Scouts of America to Congress describing highlights from 1923, activities, finance, foreign relations, organizational leadership, and other information about scouting programs.
Date:
May 2, 1924
Creator:
Boy Scouts of America
Object Type:
Report
System:
The Portal to Texas History
Application of alternating current impedance to fuel cell modeling
AC impedance has provided a useful diagnostic tool in the Los Alamos polymer electrolyte fuel cell (PEFC) program. The author reviews the techniques he has used in ac impedance modeling. These techniques include equation implementation, model simplification and verification, least squares fitting, application of two-dimensional Laplace equation solvers handling complex interfacial boundary conditions, and interpretation of impedance features. The separate features of the complete electrode model are explained by analytic examples.
Date:
May 2, 1999
Creator:
Springer, Thomas E.
Object Type:
Article
System:
The UNT Digital Library
Applying Agile Methods to Weapon/Weapon-Related Software
This white paper provides information and guidance to the Department of Energy (DOE) sites on Agile software development methods and the impact of their application on weapon/weapon-related software development. The purpose of this white paper is to provide an overview of Agile methods, examine the accepted interpretations/uses/practices of these methodologies, and discuss the applicability of Agile methods with respect to Nuclear Weapons Complex (NWC) Technical Business Practices (TBPs). It also provides recommendations on the application of Agile methods to the development of weapon/weapon-related software.
Date:
May 2, 2007
Creator:
Adams, Dennis; Armendariz, Maria; Blackledge, Mike; Campbell, Frank; Cloninger, Mack; Cox, Larry et al.
Object Type:
Report
System:
The UNT Digital Library
Apprehensions of Unauthorized Migrants along the Southwest Border: Fact Sheet
This report discusses the number of illegal alien apprehensions between southern ports of entry (POE) in the United States, which has generally declined.
Date:
May 2, 2014
Creator:
Seghetti, Lisa & Durak, Daniel
Object Type:
Report
System:
The UNT Digital Library
An Approximate Method for Estimating the Incompressible Laminar Boundary-Layer Characteristics on a Flat Plate in Slipping Flow
Memorandum presenting an approximate method for the estimation of the properties of the incompressible laminar boundary layer on a flat plate in the slip-flow region using Karman's momentum method. At equivalent stations, the total thickness and the skin friction of a slipping boundary layer are less than that of the normal boundary layer at the same Reynolds number.
Date:
May 2, 1949
Creator:
Donaldson, Coleman duP.
Object Type:
Report
System:
The UNT Digital Library
Armenia-Azerbaijan Conflict
This report presents an overview of the Armenia-Azerbaijan conflict. This is a clash between the principles of territorial integrity and self-determination that is occurring in the Caucasus, creating the longest inter-ethnic dispute in the former Soviet Union. The report includes the background and analysis of history, warfare and peace process in the region. The report discusses the Armenian and Azerbaijani perspective, the role and views of others (Iran, Turkey, Russia), as well as the U.S. policy regarding the conflict.
Date:
May 2, 2003
Creator:
Migdalovitz, Carol
Object Type:
Report
System:
The UNT Digital Library
Arms Control and Nonproliferation: A Catalog of Treaties and Agreements
This report provides an overview of many of the key arms control and nonproliferation agreements and endeavors of the past 40 years. It is divided into three sections. The first describes arms control efforts between the United States and the states of the former Soviet Union, covering both formal, bilateral treaties, and the cooperative threat reduction process. The second section describes multilateral nuclear nonproliferation efforts, covering both formal treaties and less formal accommodations that have been initiated in recent years. The final section reviews treaties and agreements that address chemical, biological, and conventional weapons.
Date:
May 2, 2011
Creator:
Woolf, Amy F.; Nikitin, Mary Beth & Kerr, Paul K.
Object Type:
Report
System:
The UNT Digital Library
Assessment of fire hazards in buildings housing fusion energy experiments
A number of materials in and within the proximity of buildings housing fusion energy experiments (FEE) were analyzed for their potential fire hazard. The materials used in this study were mostly: electrical and thermal insulations. The fire hazard of these materials was assessed in terms of their ease of ignition, heat release rate, generation of smoke, and the effect of thermal environment on the combustion behavior. Several fire protection measures for buildings housing the (FEE) projects are analyzed and as a result of this study are found to be adequate for the near term.
Date:
May 2, 1978
Creator:
Alvares, N. & Lipska, A.
Object Type:
Article
System:
The UNT Digital Library
Atomic resolution mapping of the excited-state electronic structure of Cu2O with time-resolved x-ray absorption spectroscopy
We have used time-resolved soft x-ray spectroscopy to investigate the electronic structure of optically excited cuprous oxide at the O K-edge and the Cu L3-edge. The 400 nm optical excitation shifts the Cu and O absorptions to lower energy, but does not change the integrated x-ray absorption significantly for either edge. The constant integrated x-ray absorption cross-section indicates that the conduction-band and valence-band edges have very similar Cu 3d and O 2p orbital contributions. The 2.1 eV optical band gap of Cu2O significantly exceeds the one eV shift in the Cu L3- and O K-edges absorption edges induced by optical excitation, demonstrating the importance of core-hole excitonic effects and valence electron screening in the x-ray absorption process.
Date:
May 2, 2010
Creator:
Hillyard, P. W.; Kuchibhatla, S. V. N. T.; Glover, T. E.; Hertlein, M. P.; Huse, Nils; Nachimuthu, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Attachment for Carbureters.
Patent for improvement in attachments for carbureters that uses a hydro-carbon engine to induce a vertical whirl.
Date:
May 2, 1916
Creator:
Loose, Robert D.
Object Type:
Patent
System:
The Portal to Texas History