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Fact Sheet: The Social Security Retirement Age

Description: two important ages may affect a worker's plans to claim Social Security retired-worker benefits. Workers may claim full Social Security benefits at the full retirement age, which is rising gradually to age 67 for workers who were born in 1960 and later. Retired workers may claim benefits as early as age 62, which is known as the early eligibility age. Social Security benefits are reduced, however, for every month that retired worker benefits are claimed before the full retirement age.
Date: January 3, 2012
Creator: Shelton, Alison M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Workshops on Science Enabled by a Coherent, CW, Synchrotron X-ray Source, June 2011

Description: In June of 2011 we held six two-day workshops called "XDL-2011: Science at the Hard X-ray Diffraction Limit". The six workshops covered (1) Diffraction-based imaging techniques, (2) Biomolecular structure from non-crystalline materials, (3) Ultra-fast science, (4) High-pressure science, (5) Materials research with nano-beams and (6) X-ray photon correlation spectroscopy (XPCS), In each workshop, invited speaker from around the world presented examples of novel experiments that require a CW, dif… more
Date: January 3, 2012
Creator: Brock, Joel
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Microstructural Characterization of Nodular Ductile Iron

Description: The objective of this study is to quantify the graphite particle phase in nodular ductile iron (NDI). This study provides the basis for initializing microstructure in direct numerical simulations, as part of developing microstructure-fracture response models. The work presented here is a subset of a PhD dissertation on spall fracture in NDI. NDI is an ideal material for studying the influence of microstructure on ductile fracture because it contains a readily identifiable second-phase particle … more
Date: January 3, 2012
Creator: Springer, H. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Report, Validation of Novel Planar Cell Design for MW-Scale SOFC Power Systems

Description: This report describes the work completed by NexTech Materials, Ltd. during a three-year project to validate an electrolyte-supported planar solid oxide fuel cell design, termed the FlexCell, for coal-based, megawatt-scale power generation systems. This project was focused on the fabrication and testing of electrolyte-supported FlexCells with yttria-stabilized zirconia (YSZ) as the electrolyte material. YSZ based FlexCells were made with sizes ranging from 100 to 500 cm2. Single-cell testing was… more
Date: January 3, 2012
Creator: Swartz, Dr Scott L.; Thrun, Dr Lora B.; Arkenberg, Mr Gene B. & Chenault, Ms Kellie M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SELECTIVE REMOVAL OF STRONTIUM AND CESIUM FROM SIMULATED WASTE SOLUTION WITH TITANATE ION-EXCHANGERS IN A FILTER CARTRIDGE CONFIGURATIONS-12092

Description: Experimental results for the selective removal of strontium and cesium from simulated waste solutions with monosodium titanate and crystalline silicotitanate laden filter cartridges are presented. In these proof-of-principle tests, effective uptake of both strontium-85 and cesium-137 were observed using ion-exchangers in this filter cartridge configuration. At low salt simulant conditions, the instantaneous decontamination factor for strontium-85 with monosodium titanate impregnated filter memb… more
Date: January 3, 2012
Creator: Oji, L.; Martin, K. & Hobbs, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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TANK 18-F AND 19-F TANK FILL GROUT SCALE UP TEST SUMMARY

Description: High-level waste (HLW) tanks 18-F and 19-F have been isolated from FTF facilities. To complete operational closure the tanks will be filled with grout for the purpose of: (1) physically stabilizing the tanks, (2) limiting/eliminating vertical pathways to residual waste, (3) entombing waste removal equipment, (4) discouraging future intrusion, and (5) providing an alkaline, chemical reducing environment within the closure boundary to control speciation and solubility of select radionuclides. Thi… more
Date: January 3, 2012
Creator: Stefanko, D. & Langton, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PASSIVE DETECTION OF VEHICLE LOADING

Description: The Digital Imaging and Remote Sensing Laboratory (DIRS) at the Rochester Institute of Technology, along with the Savannah River National Laboratory is investigating passive methods to quantify vehicle loading. The research described in this paper investigates multiple vehicle indicators including brake temperature, tire temperature, engine temperature, acceleration and deceleration rates, engine acoustics, suspension response, tire deformation and vibrational response. Our investigation into t… more
Date: January 3, 2012
Creator: Garrett, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Final Scientific/Technical Report: Breakthrough Design and Implementation of Many-Body Theories for Electron Correlation

Description: This report discusses the following highlights of the project: (1) grid-based Hartree-Fock equation solver; (2) explicitly correlated coupled-cluster and perturbation methods; (3) anharmonic vibrational frequencies and vibrationally averaged NMR and structural parameters of FHF; (4) anharmonic vibrational frequencies and vibrationally averaged structures of hydrocarbon combustion species; (5) anharmonic vibrational analysis of the guanine-cytosine base pair; (6) the nature of the Born-Oppenheim… more
Date: January 3, 2012
Creator: Hirata, So
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mechanical Characterization of Nodular Ductile Iron

Description: The objective of this study is to characterize the strength and fracture response of nodular ductile iron (NDI) and its underlying ferritic matrix phase. Quasistatic and split Hopkinson pressure bar (SHPB) compression tests were performed on NDI and a model material for the NDI matrix phase (Fe-Si alloy). Smooth and notch round bar (NRB) samples were loaded in tension until fracture to determine strain-at-failure with varying stress triaxiality. Multiple tests were performed on each small and l… more
Date: January 3, 2012
Creator: Springer, H K
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oxygen isotope fractionation in the vacuum ultraviolet photodissociation of carbon monoxide: Wavelength, pressure and temperature dependency.

Description: Several absorption bands exist in the VUV region of Carbon monoxide (CO). Emission spectra indicate that these bands are all predissociative. An experimental investigation of CO photodissociation by vacuum ultraviolet photons (90 to 108 nm; ~13 to 11 eV) from the Advanced Light Source Synchrotron and direct measurement of the associated oxygen isotopic composition of the products are presented here. A wavelength dependency of the oxygen isotopic composition in the photodissociation product was … more
Date: January 3, 2012
Creator: Chakraborty, Subrata; Davis, Ryan; Ahmed, Musahid; Jackson, Teresa L. & Thiemens, Mark H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DEMONSTRATION OF MIXING AND TRANSFERRING SETTLING COHESIVE SLURRY SIMULANTS IN THE AY-102 TANK

Description: In support of Hanford's feed delivery of high level waste (HLW) to the Waste Treatment and Immobilization Plant (WTP), pilot-scale testing and demonstrations with simulants containing cohesive particles were performed as a joint collaboration between Savannah River National Laboratory (SRNL) and the Pacific Northwest National Laboratory (PNNL) staff. The objective of the demonstrations was to determine the impact that cohesive particle interactions in the simulants, and the resulting non-Newton… more
Date: January 3, 2012
Creator: Adamson, D. & Gauglitz, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Study of the Role of Terrestrial Processes in the Carbon Cycle Based on Measurements of the Abundance and Isotopic Composition of Atmospheric CO2

Description: The main objective of this project was to continue research to develop carbon cycle relationships related to the land biosphere based on remote measurements of atmospheric CO2 concentration and its isotopic ratios 13C/12C, 18O/16O, and 14C/12C. The project continued time-series observations of atmospheric carbon dioxide and isotopic composition begun by Charles D. Keeling at remote sites, including Mauna Loa, the South Pole, and eight other sites. Using models of varying complexity, the concent… more
Date: January 3, 2012
Creator: Piper, Stephen C. & Keeling, Ralph F.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Hydrogen Education Curriculum Path at Michigan Technological University

Description: The objective of this project was four-fold. First, we developed new courses in alternative energy and hydrogen laboratory and update existing courses in fuel cells. Secondly, we developed hydrogen technology degree programs. Thirdly, we developed hydrogen technology related course material for core courses in chemical engineering, mechanical engineering, and electrical engineering. Finally, we developed fuel cell subject material to supplement the Felder & Rousseau and the Geankoplis chemical … more
Date: January 3, 2012
Creator: Keith, Jason; Crowl, Daniel; Caspary, David; Naber, Jeff; Allen, Jeff; Mukerjee, Abhijit et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

WIND TURBINE DRIVETRAIN TEST FACILITY DATA ACQUISITION SYSTEM

Description: The Wind Turbine Drivetrain Test Facility (WTDTF) is a state-of-the-art industrial facility used for testing wind turbine drivetrains and generators. Large power output wind turbines are primarily installed for off-shore wind power generation. The facility includes two test bays: one to accommodate turbine nacelles up to 7.5 MW and one for nacelles up to 15 MW. For each test bay, an independent data acquisition system (DAS) records signals from various sensors required for turbine testing. Thes… more
Date: January 3, 2012
Creator: Mcintosh, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Final Report: Computer Simulation of Osmosis and Reverse Osmosis in Structured Membranes

Description: Molecular simulation methods were developed as part of this project to increase our fundamental understanding of membrane based separation systems. Our simulations clarified for example that steric (size) effects had a significant impact on the desalination membranes. Previously it was thought the separation was entirely driven by coulombic force (attractive/repulsive forces at the membrane surfaces). Steric effects played an important role, because salt ions in brackish water are never present… more
Date: January 3, 2012
Creator: Murad, Sohail
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

PHYLOGENOMICS - GUIDED VALIDATION OF FUNCTION FOR CONSERVED UNKNOWN GENES

Description: Identifying functions for all gene products in all sequenced organisms is a central challenge of the post-genomic era. However, at least 30-50% of the proteins encoded by any given genome are of unknown function, or wrongly or vaguely annotated. Many of these 'unknown' proteins are common to prokaryotes and plants. We accordingly set out to predict and experimentally test the functions of such proteins. Our approach to functional prediction is integrative, coupling the extensive post-genomic re… more
Date: January 3, 2012
Creator: V, DE CRECY-LAGARD & D, HANSON A
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

RAPID DETERMINATION OF RA-226 IN ENVIRONMENTAL SAMPLES

Description: A new rapid method for the determination of {sup 226}Ra in environmental samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used for emergency response or routine sample analyses. The need for rapid analyses in the event of a Radiological Dispersive Device or Improvised Nuclear Device event is well-known. In addition, the recent accident at Fukushima Nuclear Power Plant in March, 2011 reinforces the need to have rapid analyses for radionuclides … more
Date: January 3, 2012
Creator: Maxwell, S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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