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75
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26
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An Analysis of the NEXAFS Spectra of a molecular crystal: alpha-Glycine
The nitrogen K-edge Near Edge X-ray Absorption Fine Structure (NEXAFS) spectrum of alpha-crystalline glycine has been calculated for temperatures ranging from 0 K to 450 K. Significant temperature dependent spectral changes are predicted. The calculated room temperature spectrum is in good agreement with experiment. At high temperatures, molecular motions strongly influence the spectrum, as any unique spectrum from an individual instantaneous configuration does not resemble the experimental result or the average calculated spectrum; complex coupled motions in this prototypical molecular crystal underlie the observed spectral changes.
Date:
June 18, 2010
Creator:
Schwartz, Craig P.; Saykally, Richard J. & Prendergast, David
Object Type:
Article
System:
The UNT Digital Library
Analytical Data Report for Sediment Samples Collected From 200 BP 5 OU, C5860 (299-E29-545) K-Well
This is an analytical data report for sediments received fro BP 5 K Well. This report is prepared for CHPRC
Date:
June 18, 2010
Creator:
Lindberg, Michael J.
Object Type:
Report
System:
The UNT Digital Library
Analytical Data Report for Sediment Samples Collected From 200 BP 5 OU, C7514 (299-E28-30) L-Well
This an analytical data report for samples received from BP-5 L Well. This report is being prepared for CHPRC.
Date:
June 18, 2010
Creator:
Lindberg, Michael J.
Object Type:
Report
System:
The UNT Digital Library
Analytical Data Report for Sediment Samples Collected From 200 BP 5 OU, C7515 (299-E24-25) M-Well
This is an analytical data report for sediments received from BP 5 M Well for geochemical studies. Data will be reported to CH2M HILL Plateau Remediation Company (CHPRC).
Date:
June 18, 2010
Creator:
Lindberg, Michael J.
Object Type:
Report
System:
The UNT Digital Library
"And Now It's Time for Jazz": Willis Conover and the Voice of America
Presentation for the 2010 International Association of Music Libraries (IAML) Annual Conference. This presentation discusses jazz producer and broadcaster Willis Conover and the Voice of America.
Date:
June 29, 2010
Creator:
Justice, Andrew
Object Type:
Presentation
System:
The UNT Digital Library
Animal Waste and Water Quality: EPA’s Response to the Waterkeeper Alliance Court Decision on Regulation of CAFOs
This report is categorized into three categories: (I) The 2003 Rule, (II) The waterkeeper Alliance Decision and EPA's Response and (III) Response to the 2008 Revised Rule.
Date:
June 15, 2010
Creator:
Copeland, Claudia
Object Type:
Report
System:
The UNT Digital Library
Annealing a Follow-up Program: Improvement of the Dark Energy Figure of Merit for Optical Galaxy Cluster Surveys
The precision of cosmological parameters derived from galaxy cluster surveys is limited by uncertainty in relating observable signals to cluster mass. We demonstrate that a small mass-calibration follow-up program can significantly reduce this uncertainty and improve parameter constraints, particularly when the follow-up targets are judiciously chosen. To this end, we apply a simulated annealing algorithm to maximize the dark energy information at fixed observational cost, and find that optimal follow-up strategies can reduce the observational cost required to achieve a specified precision by up to an order of magnitude. Considering clusters selected from optical imaging in the Dark Energy Survey, we find that approximately 200 low-redshift X-ray clusters or massive Sunyaev-Zel'dovich clusters can improve the dark energy figure of merit by 50%, provided that the follow-up mass measurements involve no systematic error. In practice, the actual improvement depends on (1) the uncertainty in the systematic error in follow-up mass measurements, which needs to be controlled at the 5% level to avoid severe degradation of the results; and (2) the scatter in the optical richness-mass distribution, which needs to be made as tight as possible to improve the efficacy of follow-up observations.
Date:
June 2, 2010
Creator:
Wu, Hao-Yi; Rozo, Eduardo & Wechsler, Risa H.
Object Type:
Article
System:
The UNT Digital Library
Annual Radioactive Waste Tank Inspection Program 2009
Aqueous radioactive wastes from Savannah River Site (SRS) separations and vitrification processes are contained in large underground carbon steel tanks. Inspections made during 2009 to evaluate these vessels and other waste handling facilities along with evaluations based on data from previous inspections are the subject of this report. The 2009 inspection program revealed that the structural integrity and waste confinement capability of the Savannah River Site waste tanks were maintained. All inspections scheduled per LWO-LWE-2008-00423, HLW Tank Farm Inspection Plan for 2009, were completed. All Ultrasonic measurements (UT) performed in 2009 met the requirements of C-ESG-00006, In-Service Inspection Program for High Level Waste Tanks, Rev. 1, and WSRC-TR-2002-00061, Rev.4. UT inspections were performed on Tank 29 and the findings are documented in SRNL-STI-2009-00559, Tank Inspection NDE Results for Fiscal Year 2009, Waste Tank 29. Post chemical cleaning UT measurements were made in Tank 6 and the results are documented in SRNL-STI-2009-00560, Tank Inspection NDE Results Tank 6, Including Summary of Waste Removal Support Activities in Tanks 5 and 6. A total of 6669 photographs were made and 1276 visual and video inspections were performed during 2009. Twenty-Two new leaksites were identified in 2009. The locations of these leaksites are documented …
Date:
June 21, 2010
Creator:
West, B. & Waltz, R.
Object Type:
Report
System:
The UNT Digital Library
Application of Absorption Spectroscopy to Actinide Process Analysis and Monitoring
The characteristic strong colors of aqueous actinide solutions form the basis of analytical techniques for actinides based on absorption spectroscopy. Colorimetric measurements of samples from processing activities have been used for at least half a century. This seemingly mature technology has been recently revitalized by developments in chemometric data analysis. Where reliable measurements could formerly only be obtained under well-defined conditions, modern methods are robust with respect to variations in acidity, concentration of complexants and spectral interferents, and temperature. This paper describes two examples of the use of process absorption spectroscopy for Pu analysis at the Savannah River Site, in Aiken, SC. In one example, custom optical filters allow accurate colorimetric measurements of Pu in a stream with rapid nitric acid variation. The second example demonstrates simultaneous measurement of Pu and U by chemometric treatment of absorption spectra. The paper concludes with a description of the use of these analyzers to supplement existing technologies in nuclear materials monitoring in processing, reprocessing, and storage facilities.
Date:
June 3, 2010
Creator:
Lascola, R. & Sharma, V.
Object Type:
Article
System:
The UNT Digital Library
Application of Adaptive Beamforming to Signal Observations at the Mt. Meron Array, Israel
None
Date:
June 7, 2010
Creator:
Harris, D B
Object Type:
Report
System:
The UNT Digital Library
Application of solution techniques to rapid growth of organic crystals
None
Date:
June 29, 2010
Creator:
Zaitseva, N.; Carman, L.; Glenn, A.; Newby, J.; Faust, M.; Hamel, S. et al.
Object Type:
Article
System:
The UNT Digital Library
Appropriations and Fund Transfers in the Patient Protection and Affordable Care Act (PPACA)
This report provides information about the mandatory appropriations and fund transfers in patient protection and ACA.
Date:
June 28, 2010
Creator:
Redhead, C. Stephen
Object Type:
Report
System:
The UNT Digital Library
Approximate gauge symemtry of composite vector bosons
It can be shown in a solvable field theory model that the couplings of the composite vector mesons made of a fermion pair approach the gauge couplings in the limit of strong binding. Although this phenomenon may appear accidental and special to the vector bosons made of a fermion pair, we extend it to the case of bosons being constituents and find that the same phenomenon occurs in more an intriguing way. The functional formalism not only facilitates computation but also provides us with a better insight into the generating mechanism of approximate gauge symmetry, in particular, how the strong binding and global current conservation conspire to generate such an approximate symmetry. Remarks are made on its possible relevance or irrelevance to electroweak and higher symmetries.
Date:
June 1, 2010
Creator:
Suzuki, Mahiko
Object Type:
Article
System:
The UNT Digital Library
The April 2010 Coup in Kyrgyzstan and its Aftermath: Context and Implications for U.S. Interests
This report discusses the most recent developments after the coup in Kyrgyzstan and its aftermath.
Date:
June 15, 2010
Creator:
Nichol, Jim
Object Type:
Report
System:
The UNT Digital Library
Archer County News (Archer City, Tex.), No. 22, Ed. 1 Thursday, June 3, 2010
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
June 3, 2010
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Archer County News (Archer City, Tex.), No. 23, Ed. 1 Thursday, June 10, 2010
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
June 10, 2010
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Archer County News (Archer City, Tex.), No. 24, Ed. 1 Thursday, June 17, 2010
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
June 17, 2010
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Archer County News (Archer City, Tex.), No. 25, Ed. 1 Thursday, June 24, 2010
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
June 24, 2010
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Argentina's Defaulted Sovereign Debt: Dealing with the "Holdouts"
This report reviews Argentina's financial crisis, the bond exchanges of 2005 and 2010, ongoing litigation, prospects for a final solution, related U.S. legislation, and broader policy issues. These include lessons on the effectiveness and cost of Argentina's default strategy, the ability to force sovereigns to meet their debt obligations, and ways to avoid future defaults like Argentina's.
Date:
June 17, 2010
Creator:
Hornbeck, J. F.
Object Type:
Report
System:
The UNT Digital Library
ARM Climate Research Facility Monthly Instrument Report May 2010
The purpose of this report is to provide a concise but comprehensive overview of Atmospheric Radiation Measurement Climate Research Facility instrumentation status. The report is divided into the following five sections: (1) new instrumentation in the process of being acquired and deployed, (2) field campaigns, (3) existing instrumentation and progress on improvements or upgrades, (4) proposed future instrumentation, and (5) Small Business Innovation Research instrument development.
Date:
June 21, 2010
Creator:
Voyles, J. W.
Object Type:
Report
System:
The UNT Digital Library
ARM User Survey Report
The objective of this survey was to obtain user feedback to, among other things, determine how to organize the exponentially growing data within the Atmospheric Radiation Measurement (ARM) Climate Research Facility, and identify users’ preferred data analysis system. The survey findings appear to have met this objective, having received approximately 300 responses that give insight into the type of work users perform, usage of the data, percentage of data analysis users might perform on an ARM-hosted computing resource, downloading volume level where users begin having reservations, opinion about usage if given more powerful computing resources (including ability to manipulate data), types of tools that would be most beneficial to them, preferred programming language and data analysis system, level of importance for certain types of capabilities, and finally, level of interest in participating in a code-sharing community.
Date:
June 22, 2010
Creator:
Roeder, L. R.
Object Type:
Report
System:
The UNT Digital Library
Armenia, Azerbaijan, and Georgia: Political Developments and Implications for U.S. Interests
This report discusses the history and political background of Armenia, Azerbaijan, and Georgia since breaking away from the former Soviet Union at the end of 1991. It looks at key issues for the 112th Congress including economies, energy, regional politics, local crime, and terrorism.
Date:
June 30, 2010
Creator:
Nichol, Jim
Object Type:
Report
System:
The UNT Digital Library
Army Working Capital Fund: Army Faces Challenges in Managing Working Capital Fund Cash Balance during Wartime Environment
A letter report issued by the Government Accountability Office with an abstract that begins "The Army Working Capital Fund (AWCF) collected over $16 billion for goods and services provided to customers in fiscal year 2009. Cash generated from sales is used by AWCF to cover its expenses such as paying employees. In light of the Army's changing role in the Middle East, GAO was asked to determine whether (1) AWCF's monthly cash balances fell within the Department of Defense's (DOD) cash requirements for fiscal years 2000 through 2009, (2) the cash transfers resulted in AWCF's monthly cash balances falling below the minimum amount required by DOD, and (3) the AWCF's projected monthly cash balances are expected to fall below DOD's minimum cash requirement for fiscal years 2010 and 2011 and actions the Army can take to manage those balances. To address these objectives, GAO (1) reviewed relevant DOD guidance, (2) obtained and analyzed AWCF budget and accounting reports containing cash information, and (3) interviewed DOD and Army officials."
Date:
June 22, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Army's M-4 Carbine: Background and Issues for Congress
This report discusses the M-4 carbine, which is the Army's primary individual combat weapon for infantry units. While there have been concerns raised by some about the M-4's reliability and lethality, some studies suggest that the M-4 is performing well and is viewed favorably by users. The Army is undertaking both the M4 Carbine Improvement Program and the Individual Carbine Competition, the former to identify ways to improve the current weapon, and the latter to conduct an open competition among small arms manufacturers for a follow-on weapon. An integrated product team comprising representatives from the Infantry Center; the Armament, Research, Development, and Engineering Center; the Program Executive Office Soldier; and each of the armed services will assess proposed improvements to the M4. The proposal for the industry-wide competition is currently before the Joint Requirements Oversight Council, and with the anticipated approval, solicitation for industry submissions could begin this fall. It is expected, however, that a selection for a follow-on weapon will not occur before FY2013, and that fielding of a new weapon would take an additional three to four years.
Date:
June 8, 2010
Creator:
Feickert, Andrew
Object Type:
Report
System:
The UNT Digital Library