Collection
United States Census Map Collection
882
Office of Scientific & Technical Information Technical Reports
114
Congressional Research Service Reports
64
Government Accountability Office Reports
15
Federal Register
8
Texas Attorney General Opinions
3
CyberCemetery Extracted Publications
2
Texas Register
2
Texas State Publications
2
CyberCemetery
1
Country
Year
Month
Day
Language
1,093 Matching Results
Results open in a new window/tab.
Data Quality Objectives for Selecting Waste Samples for the Bench Steam Reformer Test
This document describes the data quality objectives to select archived samples located at the 222-S Laboratory for Fluid Bed Steam Reformer testing. The type, quantity and quality of the data required to select the samples for Fluid Bed Steam Reformer testing are discusses.
Date:
August 10, 2010
Creator:
Dl, Banning
Object Type:
Report
System:
The UNT Digital Library
Muon Fluence Measurements for Homeland Security Applications
This report focuses on work conducted at Pacific Northwest National Laboratory to better characterize aspects of backgrounds in RPMs deployed for homeland security purposes. Two polyvinyl toluene scintillators were utilized with supporting NIM electronics to measure the muon coincidence rate. Muon spallation is one mechanism by which background neutrons are produced. The measurements performed concentrated on a broad investigation of the dependence of the muon flux on a) variations in solid angle subtended by the detector; b) the detector inclination with the horizontal; c) depth underground; and d) diurnal effects. These tests were conducted inside at Building 318/133, outdoors at Building 331G, and underground at Building 3425 at Pacific Northwest National Laboratory.
Date:
August 10, 2010
Creator:
Ankney, Austin S.; Berguson, Timothy J.; Borgardt, James D. & Kouzes, Richard T.
Object Type:
Report
System:
The UNT Digital Library
Radioactive Effluents from Nuclear Power Plants Annual Report: 2007
This report describes radioactive effluents from commercial nuclear power plants (NPPs) in the United States. This information was reported by the licensees for radioactive discharges that occurred in 2007. The report provides information relevant to the potential impact of NPPs on the environment and on public health.
Date:
December 10, 2010
Creator:
U.S. Nuclear Regulatory Commission. Office of Nuclear Reactor Regulation.
Object Type:
Report
System:
The UNT Digital Library
LCLS Gun Solenoid Design Considerations
The LCLS photocathode rf gun requires a solenoid immediately downstream for proper emittance compensation. Such a gun and solenoid have been operational at the SSRL Gun Test Facility (GTF) for over eight years. Based on magnetic measurements and operational experience with the GTF gun solenoid multiple modifications are suggested for the LCLS gun solenoid. The modifications include adding dipole and quadrupole correctors inside the solenoid, increasing the bore to accommodate the correctors, decreasing the mirror plate thickness to allow the solenoid to move closer to the cathode, cutouts in the mirror plate to allow greater optical clearance with grazing incidence cathode illumination, utilizing pancake coil mirror images to compensate the first and second integrals of the transverse fields and incorporating a bipolar power supply to allow for proper magnet standardization and quick polarity changes. This paper describes all these modifications plus the magnetic measurements and operational experience leading to the suggested modifications.
Date:
December 10, 2010
Creator:
Schmerge, John
Object Type:
Report
System:
The UNT Digital Library
EM-31 ALTERNATIVE AND ENHANCED CHEMICAL CLEANING PROGRAM FOR SLUDGE HEEL REMOVAL - 11220
Mixtures of oxalic acid with nitric acid have been shown to be superior to oxalic acid alone for the dissolution of iron-rich High Level Waste sludge heels. Optimized conditions resulting in minimal oxalate usage and stoichiometric iron dissolution (based on added oxalate ion) have been determined for hematite (a primary sludge iron phase) in oxalic/nitric acid mixtures. The acid mixtures performed better than expected based on the solubility of hematite in the individual acids through a synergistic effect in which the preferred 1:1 Fe:oxalate complex is formed. This allows for the minimization of oxalate additions to the waste stream. Carbon steel corrosion rates were measured in oxalic/nitric acid mixtures to evaluate the impacts of chemical cleaning with these solutions on waste tank integrity. Manageable corrosion rates were observed in the concentration ranges of interest for an acid contact timescale of 1 month. Kinetics tests involving hematite and gibbsite (a primary sludge aluminum phase) have confirmed that {ge}90% solids dissolution occurs within 3 weeks. Based on these results, the chemical cleaning conditions recommended to promote minimal oxalate usage and manageable corrosion include: 0.5 wt. % oxalic acid/0.175 M nitric acid mixture, 50 C, 2-3 week contact time with agitation.
Date:
December 10, 2010
Creator:
King, W.; Hay, M.; Wiersma, B. & Pennebaker, F.
Object Type:
Article
System:
The UNT Digital Library
Extreme Ultraviolet Laser-based Table-top Aerial Image Metrology of Lithographic Masks
We report the first at-wavelength line edge roughness measurements of patterned EUV lithography masks realized using a table-top aerial imaging system based on a table-top {lambda}=13.2 laser.
Date:
February 10, 2010
Creator:
Brizuela, F.; Carbajo, S.; Sakdinawat, A.; Wang, Y.; Alessi, D.; Martz, D. et al.
Object Type:
Article
System:
The UNT Digital Library
R&D ERL: G5 test and commissioning plan
Gun-to-5-cell cavity (G5) setup (Fig 1-2) can be considered as the first stage of the final BNL ERL design. The goal of the G5 setup is to test critical ERL components with the beam and characterize the beam produced by the gun. Also, this test will be used to assess effectiveness of the zigzag merger, which will be installed later in the ERL setup. The major components under the test will include the SRF gun, the five-cell SRF cavity, vacuum components, parts of the control and diagnostic systems. G5 is designed to measure the following beam parameters: (1) projected bunch emittance (?) and Twiss parameters ({alpha}, {beta}); (2) slice emittance; (3) bunch length; and (4) longitudinal and transverse halo.
Date:
February 10, 2010
Creator:
Kayran, D. & Pozdeyev, E.
Object Type:
Report
System:
The UNT Digital Library
Ice Formation in Gas-Diffusion Layers
Under sub-freezing conditions, ice forms in the gas-diffusion layer (GDL) of a proton exchange membrane fuel cell (PEMFC) drastically reducing cell performance. Although a number of strategies exist to prevent ice formation, there is little fundamental understanding of the mechanisms of freezing within PEMFC components. Differential scanning calorimetry (DSC) is used to elucidate the effects of hydrophobicity (Teflon® loading) and water saturation on the rate of ice formation within three commercial GDLs. We find that as the Teflon® loading increases, the crystallization temperature decreases due to a change in internal ice/substrate contact angle, as well as the attainable level of water saturation. Classical nucleation theory predicts the correct trend in freezing temperature with Teflon® loading.
Date:
July 10, 2010
Creator:
Dursch, Thomas; Radke, Clayton J. & Weber, Adam Z.
Object Type:
Article
System:
The UNT Digital Library
Closure Report (CR) for Corrective Action Unit (CAU) 91: Area 3 U-3fi Injection Well with Errata Sheet and Certification, Revision 0
The closure report for CAU 91 has no Use Restriction Form or drawing/map included in the document to describe the use restricted area, however, Section 3.3.3 states that the site will be fenced and signage placed indicating the area as a Resource Conservation and Recovery Act (RCRA) Unit. The drawing that was placed in the FFACO indicating the use restricted area lists the coordinates for the RCRA Unit in Nevada State Plan Coordinates - North American Datum of 1983. In the ensuing years the reporting of coordinates has been standardized so that all coordinates are reported in the same manner, which is: NAD 27 UTM Zone 11 N, meters. This Errata Sheet updates the coordinate reporting to the currently accepted method and includes an aerial photo showing the RCRA Unit with the coordinates listed showing the use restricted area.
Date:
August 10, 2010
Creator:
Services, Navarro Nevada Environmental
Object Type:
Report
System:
The UNT Digital Library
P.L. 94-171 County Block Map (2010 Census): Reeves County, Inset B01
Inset map for Reeves County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:3,008.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Galveston County, Block 19
Parent map for Galveston County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:9,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Shelby County, Block 7
Parent map for Shelby County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:20,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Montgomery County, Block 44
Parent map for Montgomery County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:12,500.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Lee County, Block 8
Parent map for Lee County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:18,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Leon County, Block 5
Parent map for Leon County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:21,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Fannin County, Inset G01
Inset map for Fannin County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:1,692.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Shelby County, Block 2
Parent map for Shelby County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:20,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Hidalgo County, Block 22
Parent map for Hidalgo County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:9,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Grayson County, Block 23
Parent map for Grayson County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:15,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Galveston County, Block 49
Parent map for Galveston County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:9,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Matagorda County, Inset J03
Inset map for Matagorda County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:3,000.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Shelby County, Inset E01
Inset map for Shelby County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:2,330.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Fannin County, Inset F01
Inset map for Fannin County, Texas showing detail within a census block for which the U.S. Census Bureau collected data. The plotted map scale is 1:1,332.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History
P.L. 94-171 County Block Map (2010 Census): Montgomery County, Block 8
Parent map for Montgomery County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:12,500.
Date:
December 10, 2010
Creator:
United States. Bureau of the Census.
Object Type:
Map
System:
The Portal to Texas History