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Effects of inlet icing on performance of axial-flow turbojet engine in natural icing conditions

Description: A flight investigation in natural icing conditions was conducted to determine the effect of inlet ice formations on the performance of axial-flow turbojet engines. The results are presented for icing conditions ranging from a liquid-water content of 0.1 to 0.9 gram per cubic meter and water-droplet size from 10 to 27 microns at ambient-air temperature from 13 to 26 degrees F. The data show time histories of jet thrust, air flow, tail-pipe temperature, compressor efficiency, and icing parameters… more
Date: May 25, 1950
Creator: Acker, Loren W. & Kleinknecht, Kenneth S.
Partner: UNT Libraries Government Documents Department
open access

B physics: evidence for the exclusive decay b^+/-_c -> j/psi pi^+ and measurement of the mass of the b^+/-_c meson

Description: We report the first evidence of a fully reconstructed decay mode of the B{sub c}{sup {+-}} meson in the channel B{sub c}{sup {+-}} {yields} J/{psi}{sup {+-}}, with J/{psi} {yields} {mu}{sup +}{mu}{sup -}. The analysis is based on an integrated luminosity of 360 pb{sup -1} in p{bar p} collisions collected by the Collider Detector at Fermilab. We observe 18.9 {+-} 5.7 signal events on a background of 10.0 {+-} 1.4 events and the fit to the J/{psi}{pi}{sup {+-}} mass spectrum yields a B{sub c}{sup… more
Date: May 25, 2005
Creator: Acosta, D.
Partner: UNT Libraries Government Documents Department
open access

Verification Survey of the Building 315 Zero Power Reactor-6 Facility, Argonne National Laboratory-East, Argonne, Illinois

Description: Oak Ridge Institute for Science and Education (ORISE) conducted independent verification radiological survey activities at Argonne National Laboratory’s Building 315, Zero Power Reactor-6 facility in Argonne, Illinois. Independent verification survey activities included document and data reviews, alpha plus beta and gamma surface scans, alpha and beta surface activity measurements, and instrumentation comparisons. An interim letter report and a draft report, documenting the verification survey … more
Date: May 25, 2007
Creator: Adams, W. C.
Partner: UNT Libraries Government Documents Department
open access

Army Gas-Cooled Reactor Systems Program Monthly Progress Report: April 1959

Description: Abstract: This monthly progress report covers the activities of the Army Gas-Cooled Reactor System Program for April 1959. The program includes a water-moderated heterogeneous reactor (Gas-Cooled Reactor Experiment I), a graphite-moderated homogeneous reactor (Gas-Cooled Reactor Experiment II), a mobile gas-cooled reactor (ML-1), and the coordination of the Gas Turbine Test Facility. [It reports] the progress of each project, the associated tests and data evaluation, the applicable design crit… more
Date: May 25, 1959
Creator: Aerojet-General Corporation
Partner: UNT Libraries Government Documents Department
open access

Using Cool Roofs to Reduce Energy Use, Greenhouse Gas Emissions, and Urban Heat-island Effects: Findings from an India Experiment

Description: Cool roofs, cool pavements, and urban vegetation reduce energy use in buildings, lower local air pollutant concentrations, and decrease greenhouse gas emissions from urban areas. This report summarizes the results of a detailed monitoring project in India and related simulations of meteorology and air quality in three developing countries. The field results quantified direct energy savings from installation of cool roofs on individual commercial buildings. The measured annual energy savings pot… more
Date: May 25, 2011
Creator: Akbari, Hashem; Xu, Tengfang; Taha, Haider; Wray, Craig; Sathaye, Jayant; Garg, Vishal et al.
Partner: UNT Libraries Government Documents Department
open access

Radiation dose measurements of the insertion devices using radiachromic film dosimeters.

Description: The Advanced Photon Source (APS) uses Nd-Fe-B permanent magnets in the insertion devices to produce x-rays for scientific research [1,2]. Earlier investigations have exhibited varying degrees of demagnetization of these magnets [3] due to irradiation from electron beams [4,5,6], {sup 60}Co {gamma}-rays [5], and high-energy neutrons [7,8]. Radiation-induced demagnetization has been observed in the APS insertion devices [9] and was first measured in December of 2001. Partial demagnetization has a… more
Date: May 25, 2004
Creator: Alderman, J.; Semones, E. & Job, P. K.
Partner: UNT Libraries Government Documents Department
open access

Brief Review of Heat Transfer Problems Encountered in the Production of Magnetic Fields

Description: The design of internally cooled electrical coils for the production of high intensity magnetic fields presents many new aspects and combinations of the familiar modes of heat transfer. However, the customary methodology appears to be sufficient for preliminary analysis and understanding of those problems. This methodology comprises the derivation of a qualitative, approximate equation expressing the relative performance of the various parts of a system, followed by an examination of this equati… more
Date: May 25, 1959
Creator: Alexander, L G
Partner: UNT Libraries Government Documents Department
open access

Brief Review of Heat Transfer Problems Encountered in the Production of Magnetic Fields

Description: The design of internally cooled electrical coils for the production of high frequency intensity magnetic fields presents many new aspects and combinations of the familiar modes of heat transfer. However, the customary methodology appears to be sufficient for preliminary analysis and understanding of those problems. This methodology comprises the derivation of a qualitative, approximate equation expressing the relative performance of the various parts of a system, followed by an examination of … more
Date: May 25, 1959
Creator: Alexander, L. G.
Partner: UNT Libraries Government Documents Department
open access

Experimental Static Aerodynamic Forces and Moments at Low Speed on a Missile Model During Simulated Launching From the 25-Percent-Semispan and Wing-Tip Location of a 45 Degree Sweptback Wing-Fuselage Combination

Description: Report presenting an investigation at low speed in the 300 mph tunnel to determine the static aerodynamic forces and moments on a missile model during simulated launching from 25-percent-semispan and wing-tip locations of a wing-fuselage combination. Results regarding the differences in location and effects induced by the fuselage are provided.
Date: May 25, 1955
Creator: Alford, William J., Jr.; Silvers, H. Norman & King, Thomas J., Jr.
Partner: UNT Libraries Government Documents Department
open access

Studies of hadron-electron separators for the ZEUS barrel calorimeter

Description: Two possible upgrades, a shower maximum detector and a presampler, designed to improve the low energy electron/hadron separation capabilities of the ZEUS barrel calorimeter are described and test-beam results are reported. The presampler can also be used to correct for energy loss of particles traversing the dead material in front of the calorimeter.
Date: May 25, 1995
Creator: Ambats, I.; Bortz, D. & Connolly, A.
Partner: UNT Libraries Government Documents Department
open access

Secret Sessions of the House and Senate

Description: This report discusses the “Secret,” or “closed,” sessions of the House and Senate that exclude the press and the public.
Date: May 25, 2007
Creator: Amer, Mildred
Partner: UNT Libraries Government Documents Department
open access

Women in the United States Congress: 1917-2007

Description: This report identifies the names, committee assignments, dates of service, and (for Representatives) districts of the 242 women who have served in Congress.
Date: May 25, 2007
Creator: Amer, Mildred L.
Partner: UNT Libraries Government Documents Department
open access

Gene expression profiles of Nitrosomonas europaea, an obligate chemolitotroph

Description: Nitrosomonas europaea is an aerobic lithoautotrophic bacterium that uses ammonia (NH3) as its energy source. As a nitrifier, it is an important participant in the nitrogen cycle, which can also influence the carbon cycle. The focus of this work was to explore the genetic structure and mechanisms underlying the lithoautotrophic growth style of N. europaea. Whole genome gene expression: The gene expression profile of cells in exponential growth and during starvation was analyzed using microarrays… more
Date: May 25, 2005
Creator: Arp, Daniel J.
Partner: UNT Libraries Government Documents Department
open access

Coal Bed Methane Primer

Description: During the second half of the 1990's Coal Bed Methane (CBM) production increased dramatically nationwide to represent a significant new source of income and natural gas for many independent and established producers. Matching these soaring production rates during this period was a heightened public awareness of environmental concerns. These concerns left unexplained and under-addressed have created a significant growth in public involvement generating literally thousands of unfocused project co… more
Date: May 25, 2005
Creator: Arthur, Dan; Langhus, Bruce & Seekins, Jon
Partner: UNT Libraries Government Documents Department
open access

The Market Structure of the Health Insurance Industry

Description: This report discusses whether or not the current health insurance market structure hinders the U.S. health system's ability to reach the policy goals of expanding health insurance coverage and containing health care costs. It also describes the forces that have shaped the health insurance industry, including its historical evolution, characteristics of health care and health insurance, determinants of supply and demand for health insurance, and the nature of competition among health insurers.
Date: May 25, 2010
Creator: Austin, D. Andrew & Hungerford, Thomas L.
Partner: UNT Libraries Government Documents Department
open access

The DOE Subsurface Microbial Culture Collection at Florida State University. Final Technical Report, January 16, 1996--February 15, 1997

Description: This report describes the research that supports the Subsurface Science Program by maintaining a culture collection of microorganisms isolated from deep terrestrial subsurface environments (the Subsurface Microbial Culture Collection, or SMCC). The general distribution of cultures and data was identified as an important function of the SMCC. The accomplishments related to this function of the culture collection are described.
Date: May 25, 1998
Creator: Balkwill, D. L.
Partner: UNT Libraries Government Documents Department
open access

Preferential recycling/rejection in CFBC/FBC systems using triboelectrostatic separation

Description: Circulating Fluidized Bed Combustion (CFBC) and Fluidized Bed Combustion (FBC) with recirculation are widely used technologies in the US for power generation. They have the advantage of fuel flexibility, and low NO{sub x} and SO{sub x} emissions. Typically, as partially combusted fuel is circulated in the system, only a split stream of this circulating stream is rejected, with remainder recycled to the combustor. As a consequence, there is unburned carbon and partially used, valuable, calcium h… more
Date: May 25, 2000
Creator: Ban, Heng & Stencel, J.M.
Partner: UNT Libraries Government Documents Department
open access

Preferential recycling/rejection in CFBC/FBC systems using triboelectrostatic separation

Description: Circulating Fluidized Bed Combustion (CFBC) and Fluidized Bed Combustion (FBC) with recirculation are widely used technologies in the US for power generation. They have the advantage of fuel flexibility, and low NO{sub x} and SO{sub x} emissions. Typically, as partially combusted fuel is circulated in the system, only a split stream of this circulating stream is rejected, with remainder recycled to the combustor. As a consequence, there is unburned carbon and partially used, valuable, calcium h… more
Date: May 25, 2000
Creator: Ban, Heng & Stencel, J.M.
Partner: UNT Libraries Government Documents Department
open access

Preferential recycling/rejection in CFBC/FBC systems using triboelectrostatic separation

Description: Circulating Fluidized Bed Combustion (CFBC) and Fluidized Bed Combustion (FBC) with recirculation are widely used technologies in the US for power generation. They have the advantage of fuel flexibility, and low NO{sub x} and SO{sub x} emissions. Typically, as partially combusted fuel is circulated in the system, only a split stream of this circulating stream is rejected, with remainder recycled to the combustor. As a consequence, there is unburned carbon and partially used, valuable, calcium h… more
Date: May 25, 2000
Creator: Ban, Heng & Stencel, J.M.
Partner: UNT Libraries Government Documents Department
open access

Data Quality Objectives Supporting Radiological Air Emissions Monitoring for the PNNL Site

Description: This document of Data Quality Objectives (DQOs) was prepared based on the U.S. Environmental Protection Agency (EPA) Guidance on Systematic Planning Using the Data Quality Objectives Process, EPA, QA/G4, 2/2006 (EPA 2006) as well as several other published DQOs. Pacific Northwest National Laboratory (PNNL) is in the process of developing a radiological air monitoring program for the PNNL Site that is distinct from that of the nearby Hanford Site. Radiological emissions at the PNNL Site result f… more
Date: May 25, 2010
Creator: Barnett, J. M.; Meier, Kirsten M.; Snyder, Sandra F.; Fritz, Brad G.; Poston, Ted M. & Rhoads, Kathleen
Partner: UNT Libraries Government Documents Department
open access

The 25-Inch Liquid Hydrogen Bubble Chamber

Description: No Description Available.
Date: May 25, 1964
Creator: Barrera, F.; Byrns, R. A.; Eckman, G. J.; Hernandez, H. P.; Norgren, D. U.; Shand, A. J. et al.
Partner: UNT Libraries Government Documents Department
open access

Final Progress Report: Direct Experiments on the Ocean Disposal of Fossil Fuel CO2.

Description: OAK-B135 This report summarizes activities and results of investigations of the potential environmental consequences of direct injection of carbon dioxide into the deep-sea as a carbon sequestration method. Results of field experiments using small scale in situ releases of liquid CO2 are described in detail. The major conclusions of these experiments are that mortality rates of deep sea biota will vary depending on the concentrations of CO2 in deep ocean waters that result from a carbon sequest… more
Date: May 25, 2004
Creator: Barry, James P. & Brewer, Peter G.
Partner: UNT Libraries Government Documents Department
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