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Perry Daily Journal (Perry, Okla.), Vol. 118, No. 239, Ed. 1 Tuesday, December 14, 2010
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 14, 2010
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 266, Ed. 1 Tuesday, December 14, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 14, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oral History Interview with James Keeffe, December 14, 2010
The National Museum of the Pacific War presents an oral interview with James Keeffe. Keeffe joined the Army Air Forces as an aviation cadet in July 1942. He describes his flight training and the planes he flew. Keeffe was then sent to England to become a co-pilot on a B-24. He discusses in detail how he was forced to bail out on his fourth mission over Germany. Keeffe managed to elude capture with the help of the Dutch underground for over four months. He was eventually captured by German counter-intelligence and sent to Stalag Luft III. Keeffe describes how he and his fellow POWs were forced to evacuate due to the Soviet advance and his eventual release and repatriation. He left the service after the war, but soon returned and retired from the Air Force in 1966.
Date:
December 14, 2010
Creator:
Keeffe, James
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with James Keeffe, December 14, 2010
The National Museum of the Pacific War presents an oral interview with James Keeffe. Keeffe joined the Army Air Forces as an aviation cadet in July 1942. He describes his flight training and the planes he flew. Keeffe was then sent to England to become a co-pilot on a B-24. He discusses in detail how he was forced to bail out on his fourth mission over Germany. Keeffe managed to elude capture with the help of the Dutch underground for over four months. He was eventually captured by German counter-intelligence and sent to Stalag Luft III. Keeffe describes how he and his fellow POWs were forced to evacuate due to the Soviet advance and his eventual release and repatriation. He left the service after the war, but soon returned and retired from the Air Force in 1966.
Date:
December 14, 2010
Creator:
Keeffe, James
Object Type:
Text
System:
The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, December 14, 2010
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 14, 2010
Creator:
Wray, Kelly
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Swisher County News (Tulia, Tex.), Vol. 2, No. 48, Ed. 1 Tuesday, December 14, 2010
Weekly newspaper from Tulia, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 14, 2010
Creator:
Hooten, Patsy
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 90, No. 248, Ed. 1 Tuesday, December 14, 2010
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 14, 2010
Creator:
Halter Gray, Janie
Object Type:
Newspaper
System:
The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 96, No. 65, Ed. 1 Tuesday, December 14, 2010
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 14, 2010
Creator:
Harmon, C. L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Rains County Leader (Emory, Tex.), Vol. 124, No. 27, Ed. 1 Tuesday, December 14, 2010
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
December 14, 2010
Creator:
Hill, Earl Clyde, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
A Review of Treasury's Foreclosure Prevention Programs
December report of the U.S. Congressional Oversight Panel describing their activities and findings regarding the U.S. Treasury's foreclosure prevention effort, the Home Affordable Modification Program (HAMP). The report includes sections on the current performance of HAMP and suggestions on improvements for the future.
Date:
December 14, 2010
Creator:
United States. Congressional Oversight Panel.
Object Type:
Report
System:
The UNT Digital Library
Symmetry-breaking dynamical pattern and localization observed in the high-temperature vibrational spectrum of NaI
None
Date:
December 14, 2010
Creator:
Manley, M E; Abernathy, D L; Agladze, N I & Sievers, A J
Object Type:
Article
System:
The UNT Digital Library
SALTSTONE 3QCY10 TCLP RESULTS
The Saltstone Production Facility (SPF) receives waste from Tank 50H for treatment. In the third quarter of the 2010 calendar year (3QCY10), Tank 50H accepted transfers of approximately 76 kgal from the Effluent Treatment Project (ETP), approximately 7 kgal from Tank 710 - the HCanyon General Purpose Evaporator, approximately 57 kgal from the H-Canyon Super Kukla campaign, approximately 58 kgal from the Modular Caustic Side Solvent Extraction Unit (MCU) Decontaminated Salt Solution Hold Tank (DSS-HT), and approximately 6 kgal from other sources. The Saltstone Grout Sampling plan provides the South Carolina Department of Health and Environmental Control (SCDHEC) with the chemical and physical characterization strategy for the salt solution which is to be disposed of in the Z-Area Solid Waste Landfill (ISWLF). During operation, samples were collected from Tank 50H and grout samples prepared to determine the non-hazardous nature of the grout to meet the requirements of the South Carolina Hazardous Waste Management Regulations (SCHWMR) R.61-79.261.24(b) and R.61-79.268.48(a). Savannah River National Laboratory (SRNL) was asked to prepare saltstone from samples of Tank 50H obtained July 1, 2010 during 3QCY10 to determine the non-hazardous nature of the grout. The samples were cured and shipped to Babcock & Wilcox Technical Services Group-Radioisotope …
Date:
December 14, 2010
Creator:
Reigel, M.
Object Type:
Report
System:
The UNT Digital Library
Coherent Radiation Effects in the LCLS Undulator
For X-ray Free-Electron Lasers such as LCLS and TESLA FEL, a change in the electron energy while amplifying the FEL radiation can shift the resonance condition out of the bandwidth of the FEL. The largest sources of energy loss is the emission of incoherent undulator radiation. Because the loss per electron depends only on the undulator parameters and the beam energy, which are fixed for a given resonant wavelength, the average energy loss can be compensated for by a fixed taper of the undulator. Coherent radiation has a strong enhancement proportional to the number of electrons in the bunch for frequencies comparable to or longer than the bunch dimension. If the emitted coherent energy becomes comparable to that of the incoherent emission, it has to be included in the taper as well. However, the coherent loss depends on the bunch charge and the applied compression scheme and a change of these parameters would require a change of the taper. This imposes a limitation on the practical operation of Free-Electron Lasers, where the taper can only be adjusted manually. In this presentation we analyze the coherent emission of undulator radiation and transition undulator radiation for LCLS, and estimate whether the resulting …
Date:
December 14, 2010
Creator:
Reiche, S.; /UCLA & Huang, Z.
Object Type:
Article
System:
The UNT Digital Library
Hohlraum Target Alignment from X-ray Detector Images using Starburst Design Patterns
National Ignition Facility (NIF) is a high-energy laser facility comprised of 192 laser beams focused with enough power and precision on a hydrogen-filled spherical, cryogenic target to initiate a fusion reaction. The target container, or hohlraum, must be accurately aligned to an x-ray imaging system to allow careful monitoring of the frozen fuel layer in the target. To achieve alignment, x-ray images are acquired through starburst-shaped windows cut into opposite sides of the hohlraum. When the hohlraum is in alignment, the starburst pattern pairs match nearly exactly and allow a clear view of the ice layer formation on the edge of the target capsule. During the alignment process, x-ray image analysis is applied to determine the direction and magnitude of adjustment required. X-ray detector and source are moved in concert during the alignment process. The automated pointing alignment system described here is both accurate and efficient. In this paper, we describe the control and associated image processing that enables automation of the starburst pointing alignment.
Date:
December 14, 2010
Creator:
Leach, R. R.; Conder, A.; Edwards, O.; Kroll, J.; Kozioziemski, B.; Mapoles, E. et al.
Object Type:
Article
System:
The UNT Digital Library
Generation of Coherent X-Ray Radiation Through Modulation Compression
In this letter, we propose a scheme to generate tunable coherent X-ray radiation for future light source applications. This scheme uses an energy chirped electron beam, a laser modulators, a laser chirper and two bunch compressors to generate a prebunched kilo-Ampere current electron beam from a few tens Ampere electron beam out of a linac. The initial modulation energy wavelength can be compressed by a factor of 1 + h{sub b}R{sub 56}{sup a} phase space, where h{sub b} is the energy bunch length chirp introduced by the laser chirper, R{sub 56}{sup a} is the momentum compaction factor of the first bunch compressor. As an illustration, we present an example to generate more than 400 MW, 170 atto-seconds pulse, 1 nm coherent X-ray radiation using a 60 Ampere electron beam out. of the linac and 200 nm laser seed. Both the final wavelength and the radiation pulse length in the proposed scheme are tunable by adjusting the compression factor and the laser parameters.
Date:
December 14, 2010
Creator:
Qiang, Ji & Wu, Juhao
Object Type:
Article
System:
The UNT Digital Library
Regional-Scale Climate Change: Observations and Model Simulations
This collaborative proposal addressed key issues in understanding the Earth’s climate system, as highlighted by the U.S. Climate Science Program. The research focused on documenting past climatic changes and on assessing future climatic changes based on suites of global and regional climate models. Geographically, our emphasis was on the mountainous regions of the world, with a particular focus on the Neotropics of Central America and the Hawaiian Islands. Mountain regions are zones where large variations in ecosystems occur due to the strong climate zonation forced by the topography. These areas are particularly susceptible to changes in critical ecological thresholds, and we conducted studies of changes in phonological indicators based on various climatic thresholds.
Date:
December 14, 2010
Creator:
Bradley, Raymond S. & Diaz, Henry F.
Object Type:
Text
System:
The UNT Digital Library
SCALING SOLID RESUSPENSION AND SORPTION FOR THE SMALL COLUMN ION EXCHANGE PROCESSING TANK
The Small Column Ion Exchange (SCIX) process is being developed to remove cesium, strontium, and actinides from Savannah River Site (SRS) Liquid Waste using an existing 1.3 million gallon waste tank (i.e., Tank 41H) to house the process. Savannah River National Laboratory (SRNL) is conducting pilot-scale mixing tests to determine the pump requirements for suspending and resuspending Monosodium Titanate (MST), Crystalline Silicotitanate (CST), and simulated sludge. In addition, SRNL will also be conducting pilot-scale tests to determine the mixing requirements for the strontium and actinide sorption. As part of this task, the results from the pilot-scale tests must be scaled up to a full-scale waste tank. This document describes the scaling approach. The pilot-scale tank is a 1/10.85 linear scale model of Tank 41H. The tank diameter, tank liquid level, pump nozzle diameter, pump elevation, and cooling coil diameter are all 1/10.85 of their dimensions in Tank 41H. The pump locations correspond to the proposed locations in Tank 41H by the SCIX Program (Risers B5 and B2 for two pump configurations and Risers B5, B3, and B1 for three pump configurations). MST additions are through Riser E1, the proposed MST addition riser in Tank 41H. To determine the approach to …
Date:
December 14, 2010
Creator:
Poirier, M. & Qureshi, Z.
Object Type:
Report
System:
The UNT Digital Library
Multi-Center Electronic Structure Calculations for Plasma Equation of State
We report on an approach for computing electronic structure utilizing solid-state multi-center scattering techniques, but generalized to finite temperatures to model plasmas. This approach has the advantage of handling mixtures at a fundamental level without the imposition of ad hoc continuum lowering models, and incorporates bonding and charge exchange, as well as multi-center effects in the calculation of the continuum density of states.
Date:
December 14, 2010
Creator:
Wilson, B. G.; Johnson, D. D. & Alam, A.
Object Type:
Article
System:
The UNT Digital Library
EXPERIMENTAL RESULTS FOR THE ISOTOPIC EXCHANGE OF A 1600 LITER TITANIUM HYDRIDE STORAGE VESSEL
Titanium is used as a low pressure tritium storage material. The absorption/desorption rates and temperature rise during air passivation have been reported previously for a 4400 gram prototype titanium hydride storage vessel (HSV). A desorption limit of roughly 0.25 Q/M was obtained when heating to 700 C which represents a significant residual tritium process vessel inventory. To prepare an HSV for disposal, batchwise isotopic exchange has been proposed to reduce the tritium content to acceptable levels. A prototype HSV was loaded with deuterium and exchanged with protium to determine the effectiveness of a batch-wise isotopic exchange process. A total of seven exchange cycles were performed. Gas samples were taken nominally at the beginning, middle, and end of each desorption cycle. Sample analyses showed the isotopic exchange process does not follow the standard dilution model commonly reported. Samples taken at the start of the desorption process were lower in deuterium (the gas to be removed) than those taken later in the desorption cycle. The results are explained in terms of incomplete mixing of the exchange gas in the low pressure hydride.
Date:
December 14, 2010
Creator:
Klein, J.
Object Type:
Article
System:
The UNT Digital Library
Beam Conditioning for Free Electron Lasers:Consequences and Methods
The consequences of beam conditioning in four example cases [VISA, a soft x-ray free-electron laser (FEL), LCLS, and a 'Greenfield' FEL] are examined. It is shown that in emittance limited cases, proper conditioning reduces sensitivity to the transverse emittance and, furthermore, allows for stronger focusing in the undulator. Simulations show higher saturation power, with gain lengths reduced by a factor of 2 or more. The beam dynamics in a general conditioning system are studied, with 'matching conditions' derived for achieving conditioning without growth in the effective emittance. Various conditioning lattices are considered, and expressions derived for the amount of conditioning provided in each case when the matching conditions are satisfied. These results show that there is no fundamental obstacle to producing beam conditioning, and that the problem can be reduced to one of proper lattice design. Nevertheless, beam conditioning will not be easy to implement in practice.
Date:
December 14, 2010
Creator:
Wolski, A.; Penn, G.; Sessler, A.; Wurtele, J. & /LBL, Berkeley /UC, Berkeley, Astron. Dept.
Object Type:
Article
System:
The UNT Digital Library
A NEW PROCESS DEVELOPED FOR SEPARATION OF LIGNIN FROM AMMONIUM HYDROXIDE PRETREATMENT SOLUTIONS
A method is described for separating lignin from liquid solutions resulting from the pretreatment of lignocellulosic materials such as switchgrass with ammonium hydroxide. The method involves a sequence of steps including acidification, evaporation, and precipitation or centrifugation that are performed under defined conditions, and results in a relatively pure, solid lignin product. The method is tested on ammonium hydroxide solutions containing lignin extracted from switchgrass. Experimental results show that the method is capable of recovering between 66-95% of dissolved lignin as a precipitated solid. Cost estimates of pilot-scale and industrial-scale expressions of the process indicate that breakeven lignin prices of $2.36/kg and $0.78/kg, respectively, may be obtainable with this recovery method.
Date:
December 14, 2010
Creator:
Sherman, S.; Gorensek, M. & Milliken, C.
Object Type:
Article
System:
The UNT Digital Library
DOE Webinar - Residential Geothermal Heat Pump Retrofits
This presentation was given December 14, 2010, as part of DOE's Webinar series. The presentation discusses geothermal heat pump retrofits, technology options, and an overview of geothermal energy and geothermal heat pumps.
Date:
December 14, 2010
Creator:
Anderson, E. R.
Object Type:
Presentation
System:
The UNT Digital Library
A Masked Photocathode in Photoinjector
In this paper, we propose a masked photocathode inside the photoinjector for generating high brightness election beam. Instead of mounting the photocathode onto an electrode, an electrode with small hole is used as a mask to shield the photocathode from the accelerating vacuum chamber. Using such a masked photocathode will make the replacement of photocathode material easy by rotating the photocathode behind the electrode into the hole. Furthermore, this helps reduce the dark current or secondary electron emission from the photocathode material. The masked photocathode also provides transverse cut-off to a Gaussian laser beam that reduces electron beam emittance growth from nonlinear space-charge effects.
Date:
December 14, 2010
Creator:
Qiang, Ji
Object Type:
Article
System:
The UNT Digital Library
The Emergency Alert System (EAS) and All-Hazard Warnings
This report discusses the mainstays of the U.S. capacity to issue warnings: the Emergency Alert System (EAS), which relies primarily on broadcasting media, the NOAA Weather Radio All-Hazards Network.
Date:
December 14, 2010
Creator:
Moore, Linda K.
Object Type:
Report
System:
The UNT Digital Library