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637 Matching Results
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100-NR-2 Apatite Treatability Test: Fall 2010 Tracer Infiltration Test (White Paper)
The primary objectives of the tracer infiltration test were to 1) determine whether field-scale hydraulic properties for the compacted roadbed materials and underlying Hanford fm. sediments comprising the zone of water table fluctuation beneath the site are consistent with estimates based laboratory-scale measurements on core samples and 2) characterize wetting front advancement and distribution of soil moisture achieved for the selected application rate. These primary objectives were met. The test successfully demonstrated that 1) the remaining 2 to 3 ft of compacted roadbed material below the infiltration gallery does not limit infiltration rates to levels that would be expected to eliminate near surface application as a viable amendment delivery approach and 2) the combined aqueous and geophysical monitoring approaches employed at this site, with some operational adjustments based on lessons learned, provides an effective means of assessing wetting front advancement and the distribution of soil moisture achieved for a given solution application. Reasonably good agreement between predicted and observed tracer and moisture front advancement rates was observed. During the first tracer infiltration test, which used a solution application rate of 0.7 cm/hr, tracer arrivals were observed at the water table (10 to 12 ft below the bottom of the infiltration …
Date:
April 14, 2011
Creator:
Vermeul, Vincent R.; Fritz, Brad G.; Fruchter, Jonathan S.; Greenwood, William J.; Johnson, Timothy C.; Horner, Jacob A. et al.
Object Type:
Report
System:
The UNT Digital Library
2010 Dry and 2009 - 2010 Wet Season Branchiopod Survey Report, Site 300
Lawrence Livermore National Laboratory (LLNL) requested that Condor Country Consulting, Inc. (CCCI) perform wet season surveys and manage the dry season sampling for listed branchiopods in two ponded locations within the Site 300 Experimental Test Site. Site 300 is located in Alameda and San Joaquin Counties, located between the Cities of Livermore and Tracy. The two pool locations have been identified for possible amphibian enhancement activities in support of the Compensation Plan for impacts tied to the Building 850 soil clean-up project. The Building 850 project design resulted in formal consultation with the U.S. Fish and Wildlife Service (USFWS) as an amendment (File 81420-2009-F-0235) to the site-wide Biological Opinion (BO) (File 1-1-02-F-0062) in the spring of 2009 and requires mitigation for the California tiger salamander (AMCA, Ambystoma californiense) and California red-legged frog (CRLF, Rana draytonii) habitat loss. Both pools contain breeding AMCA, but do not produce metamorphs due to limited hydroperiod. The pool to the southeast (Pool BC-FS-2) is the preferred site for amphibian enhancement activities, and the wetland to northwest (Pool OA-FS-1) is the alternate location for enhancement. However, prior to enhancement, LLNL has been directed by USFWS (BO Conservation Measure 17 iii) to 'conduct USFWS protocol-level branchiopod surveys …
Date:
March 14, 2011
Creator:
Dexter, W.
Object Type:
Report
System:
The UNT Digital Library
2011 River Corridor Closure Contractor Revegetation and Mitigation Monitoring Report
This report documents the status of revegetation projects and natural resources mitigation efforts conducted for remediated waste sites and other activities associated with the Comprehensive Environmental Response, Compensation, and Liability Act of 1980 cleanup of National Priorities List waste sites at Hanford. This report contains the vegetation monitoring data that was collected in the spring and summer of 2011 from the River Corridor Closure Contractor’s revegetation and mitigation areas on the Hanford Site.
Date:
November 14, 2011
Creator:
West, W. J.; Lucas, J. G. & Gano, K. A.
Object Type:
Report
System:
The UNT Digital Library
2D Optical Streaking for Ultra-Short Electron Beam Diagnostics
We propose a novel approach to measure short electron bunch profiles at micrometer level. Low energy electrons generated during beam-gas ionization are simultaneously modulated by the transverse electric field of a circularly-polarized laser, and then they are collected at a downstream screen where the angular modulation is converted to a circular shape. The longitudinal bunch profile is simply represented by the angular distribution of the electrons on the screen. We only need to know the laser wavelength for calibration and there is no phase synchronization problem. Meanwhile the required laser power is also relatively low in this setup. Some simulations examples and experimental consideration of this method are discussed. At Linac Coherent Light Source (LCLS), an S-band RF transverse deflector (TCAV) is used to measure the bunch length with a resolution 10 femtosecond (fs) rms. An X-band deflector (wavelength 2.6cm) is proposed recently to improve the resolution. However, at the low charge operation mode (20pC), the pulse length can be as short as fs. It is very challenging to measure femtosecond and sub-femtosecond level bunch length. One of the methods is switching from RF to {mu}m level wavelength laser to deflect the bunch. A powerful laser ({approx}10s GW) is required …
Date:
December 14, 2011
Creator:
Ding, Y.T.; Huang, Z. & Wang, L.
Object Type:
Article
System:
The UNT Digital Library
82nd Texas Legislature, Regular Session, House Concurrent Resolution 35
Concurrent resolution introduced by the Texas House of Representatives and Senate recognizing February 1, 2011, as Texas Tech University System Day.
Date:
February 14, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Concurrent Resolution 36
Concurrent resolution introduced by the Texas House of Representatives and Senate commemorating the 25th anniversary of the establishment of the Texas Silver-Haired Legislature.
Date:
February 14, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
82nd Texas Legislature, Regular Session, House Concurrent Resolution 41
Concurrent resolution introduced by the Texas House of Representatives and Senate recognizing January 31, 2011, as Bosque County Day at the State Capitol.
Date:
February 14, 2011
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
Abandoned Mines: Information on the Number of Hardrock Mines, Cost of Cleanup, and Value of Financial Assurances
Testimony issued by the Government Accountability Office with an abstract that begins "The General Mining Act of 1872 helped foster the development of the West by giving individuals exclusive rights to mine gold, silver, copper, and other hardrock minerals on federal land. However, miners often abandoned mines, leaving behind structures, safety hazards, and contaminated land and water. Four federal agencies--the Department of the Interior's Bureau of Land Management (BLM) and Office of Surface Mining Reclamation and Enforcement (OSM), the Department of Agriculture's Forest Service, and the Environmental Protection Agency (EPA)--fund the cleanup of some of these hardrock mine sites. From 2005 through 2009, GAO issued a number of reports and testimonies on various issues related to abandoned and current hardrock mining operations. This testimony summarizes some of the key findings of these reports and testimonies focusing on the (1) number of abandoned hardrock mines, (2) availability of information collected by federal agencies on general mining activities, (3) amount of funding spent by federal agencies on cleanup of abandoned mines, and (4) value of financial assurances for mining operations on federal land managed by BLM. In 2005, GAO recommended that BLM strengthen the management of its financial assurances, which BLM generally …
Date:
July 14, 2011
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Acetylcholine-Containing Neuroepithelial Cells in Fish Gills Support the Cholinergic Hypothesis of O2 Chemoreception
This paper discusses research on how acetylcholine-containing neuroepithelial cells in fish gills support the cholinergic hypothesis of O2 chemoreception.
Date:
April 14, 2011
Creator:
Wanner, Clinton & Burleson, Mark L.
Object Type:
Paper
System:
The UNT Digital Library
Acetylcholine-Containing Neuroepithelial Cells in Fish Gills Support the Cholinergic Hypothesis of O2 Chemoreception [Presentation]
Presentation for the 2011 University Scholars Day at the University of North Texas discussing research on acetylcholine-containing neuroepithelial cells in fish gills.
Date:
April 14, 2011
Creator:
Wanner, Clinton & Burleson, Mark L.
Object Type:
Presentation
System:
The UNT Digital Library
ACORN: Federal Funding and Monitoring [Reissued on June 17, 2011]
A letter report issued by the Government Accountability Office with an abstract that begins "The Association of Community Organizations for Reform Now (ACORN) was established in 1970 to advocate for low-income families. Allegations of voter registration fraud and videotapes of questionable behavior by ACORN employees raised concerns about ACORN, and Congress passed fiscal year 2010 laws prohibiting federal funds from being awarded to ACORN and ACORN related organizations. GAO was asked to report on these organizations, including (1) how much federal funding was awarded to them for fiscal years 2005 through 2009 and the purpose of the funding, (2) the extent to which federal agencies' monitoring of these awards detected issues identified by audits, (3) the nature and results of any federal investigations or prosecutions conducted of these organizations from fiscal years 2005 through 2009, and (4) how federal agencies implemented provisions prohibiting the award of funds. Among other things, GAO identified awards to ACORN or potentially related organizations by 31 federal agencies and audits of such awards; documentation of related investigations and cases; and actions to implement funding restrictions by the 27 agencies in our review subject to them."
Date:
June 14, 2011
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Advanced Electric Traction System Technology Development
As a subcontractor to General Motors (GM), Ames Laboratory provided the technical expertise and supplied experimental materials needed to assess the technology of high energy bonded permanent magnets that are injection or compression molded for use in the Advanced Electric Traction System motor. This support was a sustained (Phase 1: 6/07 to 3/08) engineering effort that builds on the research achievements of the primary FreedomCAR project at Ames Laboratory on development of high temperature magnet alloy particulate in both flake and spherical powder forms. Ames Lab also provide guidance and direction in selection of magnet materials and supported the fabrication of experimental magnet materials for development of injection molding and magnetization processes by Arnold Magnetics, another project partner. The work with Arnold Magnetics involved a close collaboration on particulate material design and processing to achieve enhanced particulate properties and magnetic performance in the resulting bonded magnets. The overall project direction was provided by GM Program Management and two design reviews were held at GM-ATC in Torrance, CA. Ames Lab utilized current expertise in magnet powder alloy design and processing, along with on-going research advances being achieved under the existing FreedomCAR Program project to help guide and direct work during Phase …
Date:
January 14, 2011
Creator:
Anderson, Iver
Object Type:
Report
System:
The UNT Digital Library
ADVANCED MIXING MODELS
The process of recovering and processing High Level Waste (HLW) the waste in storage tanks at the Savannah River Site (SRS) typically requires mixing the contents of the tank with one to four mixers (pumps) located within the tank. The typical criteria to establish a mixed condition in a tank are based on the number of pumps in operation and the time duration of operation. To ensure that a mixed condition is achieved, operating times are typically set conservatively long. This approach results in high operational costs because of the long mixing times and high maintenance and repair costs for the same reason. A significant reduction in both of these costs might be realized by reducing the required mixing time based on calculating a reliable indicator of mixing with a suitably validated computer code. The focus of the present work is to establish mixing criteria applicable to miscible fluids, with an ultimate goal of addressing waste processing in HLW tanks at SRS and quantifying the mixing time required to suspend sludge particles with the submersible jet pump. A single-phase computational fluid dynamics (CFD) approach was taken for the analysis of jet flow patterns with an emphasis on the velocity decay …
Date:
February 14, 2011
Creator:
Lee, S.; Dimenna, R. & Tamburello, D.
Object Type:
Report
System:
The UNT Digital Library
Aerosol Absorption and Scattering Measurements: Field Measuremnets and Laboratory Characterizations.
The objective of this report is to determine the overall impact of atmospheric aerosols on radioactive balance.
Date:
December 14, 2011
Creator:
Marley, Nancy A. & Gaffney, Jeffrey S.
Object Type:
Report
System:
The UNT Digital Library
Afghanistan Casualties: Military Forces and Civilians
Report collecting statistics from a variety of sources on casualties sustained during Operation Enduring Freedom (OEF), which began on October 7, 2001. OEF actions take place primarily in Afghanistan; however, OEF casualties also includes American casualties in Pakistan, Uzbekistan, Guantanamo Bay (Cuba), Djibouti, Eritrea, Ethiopia, Jordan, Kenya, Kyrgyzstan, the Philippines, Seychelles, Sudan, Tajikistan, Turkey, and Yemen.
Date:
January 14, 2011
Creator:
Chesser, Susan G.
Object Type:
Report
System:
The UNT Digital Library
Aging Well: The Impact of Service Learning on Elders
Poster presented at the 2013 University Scholars Day at the University of North Texas. This poster discusses research on the impact of service learning on elders. Innovative ways of enhancing the elderly's wellness have been introduced with research and services focusing on improving physical activity, nutrition, and increasing social interaction and involvement.
Date:
April 14, 2011
Creator:
Davis, Katelyn M. & Smith, Kenneth Scott, 1976-
Object Type:
Poster
System:
The UNT Digital Library
Agriculture and Related Agencies: FY2012 Appropriations
This report considers the Agriculture and Related Agencies appropriations bill. The report compares and contrasts the Senate and House versions of the bill in terms of budgeting.
Date:
December 14, 2011
Creator:
Monke, Jim
Object Type:
Report
System:
The UNT Digital Library
Agriculture in Pending U.S. Free Trade Agreements with Colombia, Panama, and South Korea
This report discusses pending U.S. free trade agreements (FTAs) with South Korea, Colombia, and Panama. The bills to implement these agreements will now be debated under trade promotion authority, or fast-track rules, designed to expedite congressional consideration. The report includes an overview of agricultural issues regarding FTAs and pending FTA partners, as well as a closer breakdown of the specific issues for each of the countries.
Date:
February 14, 2011
Creator:
Jurenas, Remy
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 135, No. 47, Ed. 1 Thursday, April 14, 2011
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
April 14, 2011
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 136, No. 8, Ed. 1 Thursday, July 14, 2011
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
July 14, 2011
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Allen American (Allen, Tex.), Vol. 41, No. 46, Ed. 1 Thursday, July 14, 2011
Weekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
July 14, 2011
Creator:
Mann, Rick
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 112, No. 3, Ed. 1 Thursday, April 14, 2011
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 14, 2011
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 46, Ed. 1 Tuesday, June 14, 2011
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 14, 2011
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 68, Ed. 1 Thursday, July 14, 2011
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 14, 2011
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History