Assessing the Feasibility of Renewable Energy Development and Energy Efficiency Deployment on Tribal Lands (open access)

Assessing the Feasibility of Renewable Energy Development and Energy Efficiency Deployment on Tribal Lands

The Keweenaw Bay Indian Community (KBIC) is committed to preserving our natural environment and reducing the amount of fossil fuels consumed while developing "green" business manufacturing jobs on tribal lands. The Tribe's Comprehensive Strategic Plan seeks to diversify the Tribal Economy through the creation of alternative energy businesses, such as wind, solar and bio-mass facilities while protecting the waters of Lake Superior, tribal inland lakes and streams. In addition, the Community desired to utilize clean/green energy resources to promote the self-sufficiency of the Tribal Nation. The objective of the study is to preserve our environment and maintain our cultural goals of using the resources of the land wisely. To reduce our consumption of fossil fuels, mercury and carbon dioxide emissions, which harm our water and land; we have decided to evaluate the opportunities of utilizing wind power. Preliminary projections show that we may eliminate pollution from our land in a cost effective manner. This study will evaluate wind capacity and our current energy consumption while projecting the feasibility of converting to wind power for operations at our major facilities. This project will study the feasibility of wind power at two locations for the purpose of reducing the Tribe's reliance upon …
Date: December 17, 2012
Creator: Nominelli, Gregg R.
Object Type: Report
System: The UNT Digital Library
S-Band Sheet Beam Klystron Research and Development at SLAC (open access)

S-Band Sheet Beam Klystron Research and Development at SLAC

None
Date: December 17, 2012
Creator: Jensen, Aaron; Fazio, Michael V.; Haase, Andrew; Jongewaard, Erik N.; Martin, David W.; Neilson, Jeffrey et al.
Object Type: Article
System: The UNT Digital Library
CORROSION ISSUES ASSOCIATED WITH AUSTENITIC STAINLESS STEEL COMPONENTS USED IN NUCLEAR MATERIALS EXTRACTION AND SEPARATION PROCESSES (open access)

CORROSION ISSUES ASSOCIATED WITH AUSTENITIC STAINLESS STEEL COMPONENTS USED IN NUCLEAR MATERIALS EXTRACTION AND SEPARATION PROCESSES

This paper illustrated the magnitude of the systems, structures and components used at the Savannah River Site for nuclear materials extraction and separation processes. Corrosion issues, including stress corrosion cracking, pitting, crevice corrosion and other corrosion induced degradation processes are discussed and corrosion mitigation strategies such as a chloride exclusion program and corrosion release testing are also discussed.
Date: December 17, 2012
Creator: Mickalonis, J.; Louthan, M. & Sindelar, R.
Object Type: Article
System: The UNT Digital Library
Determination Of Reportable Radionuclides For DWPF Sludge Batch 7B (Macrobatch 9) (open access)

Determination Of Reportable Radionuclides For DWPF Sludge Batch 7B (Macrobatch 9)

The DWPF is receiving radioactive sludge slurry from HLW Tank 40. The radioactive sludge slurry in Tank 40 is a blend of the heel from Sludge Batch 7a (SB7a) and Sludge Batch 7b (SB7b) that was transferred to Tank 40 from Tank 51. The blend of sludge in Tank 40 is also referred to as Macrobatch 9 (MB9). This report develops the list of reportable radionuclides and associated activities as a function of time. Twenty-seven radionuclides have been identified as reportable for DWPF SB7b. Each of these radionuclides has a half-life greater than ten years and contributes more than 0.01% of the radioactivity on a Curie basis at some point from production through the 1100 year period between 2015 and 3115. For SB7b, all of the radionuclides in the Design Basis glass are reportable except for three radionuclides: Pd-107, Cs-135, and Th-230. At no time during the 1100- year period between 2015 and 3115 did any of these three radionuclides contribute to more than 0.01% of the radioactivity on a Curie basis. The radionuclide measurements made for SB7b are the most extensive conducted to date. Some method development/refinement occurred during the conduct of these measurements, leading to lower detection limits …
Date: December 17, 2012
Creator: Crawford, C. L. & Diprete, D. P.
Object Type: Report
System: The UNT Digital Library
Ecosystem-Atmosphere Exchange of Carbon, Water and Energy over a Mixed Deciduous Forest in the Midwest (open access)

Ecosystem-Atmosphere Exchange of Carbon, Water and Energy over a Mixed Deciduous Forest in the Midwest

During the project period we continued to conduct long-term (multi-year) measurements, analysis, and modeling of energy and mass exchange in and over a deciduous forest in the Midwestern United States, to enhance the understanding of soil-vegetation-atmosphere exchange of carbon. At the time when this report was prepared, results from nine years of measurements (1998 - 2006) of above canopy CO2 and energy fluxes at the AmeriFlux site in the Morgan-Monroe State Forest, Indiana, USA (see Table 1), were available on the Fluxnet database, and the hourly CO2 fluxes for 2007 are presented here (see Figure 1). The annual sequestration of atmospheric carbon by the forest is determined to be between 240 and 420 g C m-2 a-1 for the first ten years. These estimates are based on eddy covariance measurements above the forest, with a gap-filling scheme based on soil temperature and photosynthetically active radiation. Data gaps result from missing data or measurements that were rejected in qua)lity control (e.g., during calm nights). Complementary measurements of ecological variables (i.e. inventory method), provided an alternative method to quantify net carbon uptake by the forest, partition carbon allocation in each ecosystem components, and reduce uncertainty on annual net ecosystem productivity (NEP). Biometric …
Date: December 17, 2012
Creator: Dragoni, Danilo; Schmid, Hans Peter; Grimmond, C.S.B.; Randolph, J. C. & White, J. R.
Object Type: Report
System: The UNT Digital Library
Increase Jc by Improving the Array of Nb3Sn strands for Fusion Application (open access)

Increase Jc by Improving the Array of Nb3Sn strands for Fusion Application

During Phase I, our efforts were focusing on improving the array of subelement in the tube type strands by hardening the Sn core and the subelement matrix to effectively increase the Jc of the strands. Below is a summary of the results. 1) We were unsuccessful in improving the array using a Cu-Sn matrix approach. 2) We slightly improved the array using Sn with 1.5at%Ti doped core, and a 217-subelement restacked strand was made and drawn down without any breakage. 3) We greatly improved the array using the Glidcop Al-15 to replace the pure Cu sheath in the subelement, and a 217-subelement restacked strand was made and drawn down. Both strands have very good drawability and the array showed good improvement. 4) We also improved the array using improved wire drawing techniques using Hyper Tech’s new caterpillar wire drawing machines to enable straight wire drawing for the entire wire drawing process. 5) The 919-subelement restack strand shows its non-Cu Jc over 2100 A/mm2 at 12 T/4.2 K and AC loss of 508 mJ/cm3.
Date: December 17, 2012
Creator: Peng, Dr. Xuan
Object Type: Report
System: The UNT Digital Library
Increasing the Jc of Tube-Type Nb3Sn Strands (open access)

Increasing the Jc of Tube-Type Nb3Sn Strands

In this Phase I, we successfully made strands with better Cu/Sn ratio to reduce the coarse Nb3Sn grain region, thereby providing the potential of increasing the non-Cu Jc in the Phase II and scaling up to 2” billets with 331 subelements. In order to improve the strand’s high field properties, we successfully doped low amount of Ti in the subelements and made a 217-subelement wire which has been drawn down to 0.7 mm without any breakage. This strand gave subelement size of 35 µm. We will scale up the Ti-doped billet to 271-subelement in 1.5” billet in this proposed Phase II. The hexagonal shaped subelements with round Nb-Sn have been developed for a 61-subelement restack. Thus the results indicated that for 217-subelement restack in a 2” billet we have the potential to draw down this type of construction without problems while maintaining a good array to react more Nb to get higher non-Cu Jc in the Phase II.
Date: December 17, 2012
Creator: Peng, Dr. Xuan
Object Type: Report
System: The UNT Digital Library
Integrated Genome-Based Studies of Shewanella Ecophysiology (open access)

Integrated Genome-Based Studies of Shewanella Ecophysiology

Integration of bioinformatics and experimental techniques was applied to mapping and characterization of the key components (pathways, enzymes, transporters, regulators) of the core metabolic machinery in Shewanella oneidensis and related species with main focus was on metabolic and regulatory pathways involved in utilization of various carbon and energy sources. Among the main accomplishments reflected in ten joint publications with other participants of Shewanella Federation are: (i) A systems-level reconstruction of carbohydrate utilization pathways in the genus of Shewanella (19 species). This analysis yielded reconstruction of 18 sugar utilization pathways including 10 novel pathway variants and prediction of > 60 novel protein families of enzymes, transporters and regulators involved in these pathways. Selected functional predictions were verified by focused biochemical and genetic experiments. Observed growth phenotypes were consistent with bioinformatic predictions providing strong validation of the technology and (ii) Global genomic reconstruction of transcriptional regulons in 16 Shewanella genomes. The inferred regulatory network includes 82 transcription factors, 8 riboswitches and 6 translational attenuators. Of those, 45 regulons were inferred directly from the genome context analysis, whereas others were propagated from previously characterized regulons in other species. Selected regulatory predictions were experimentally tested. Integration of this analysis with microarray data revealed overall …
Date: December 17, 2012
Creator: Andrei L. Osterman, Ph.D.
Object Type: Report
System: The UNT Digital Library
Reduce Nb3Sn Strand Deformation when Fabricating High Jc Rutherford Cables (open access)

Reduce Nb3Sn Strand Deformation when Fabricating High Jc Rutherford Cables

During Phase I, our efforts were to reduce subelements deformation when fabricating Nb3Sn Rutherford cables. Our first focus is on 217-sublement tube type strand. We successfully made a few billets in ¾” OD tube with different Cu spacing between subelements, and supplied the strands to Fermi Lab for cabling. Through the rolling test characterization, these types of strands did not have enough bonding between subelements to withstand the deformation. We saw copper cracking between subelements in the deformed strands. We scaled up the billet from ¾” OD to 1.5” OD, and made two billets. This greatly improves the bonding. There is no copper cracking in the deformed strands when we scaled up the diameter of the billets. Fermi Lab successfully made cables using one of this improved strands. In their cables, no Cu cracking and no filament bridging occurred. We also successfully made a couple of billets with hex OD and round ID subelements for 61-subelement restack. Due to the lack of bonding, we could not judge its cabling property properly. But we know through this experiment, we could keep the Nb round, once we select the proper Cu spacing.
Date: December 17, 2012
Creator: Peng, Dr. Xuan
Object Type: Report
System: The UNT Digital Library
Stepping on Computer Floor Stringer Leads to Ankle Fracture (open access)

Stepping on Computer Floor Stringer Leads to Ankle Fracture

None
Date: December 17, 2012
Creator: Horning, J A
Object Type: Report
System: The UNT Digital Library
Transition metal complexes of oxazolinylboranes and cyclopentadienyl-bis(oxazolinyl)borates: Catalysts for asymmetric olefin hydroamination and acceptorless alcohol decarbonylation (open access)

Transition metal complexes of oxazolinylboranes and cyclopentadienyl-bis(oxazolinyl)borates: Catalysts for asymmetric olefin hydroamination and acceptorless alcohol decarbonylation

The research presented and discussed in this dissertation involves the synthesis of transition metal complexes of oxazolinylboranes and cyclopentadienyl-bis(oxazolinyl)borates, and their application in catalytic enantioselective olefin hydroamination and acceptorless alcohol decarbonylation. Neutral oxazolinylboranes are excellent synthetic intermediates for preparing new borate ligands and also developing organometallic complexes. Achiral and optically active bis(oxazolinyl)phenylboranes are synthesized by reaction of 2-lithio-2-oxazolide and 0.50 equiv of dichlorophenylborane. These bis(oxazolinyl)phenylboranes are oligomeric species in solid state resulting from the coordination of an oxazoline to the boron center of another borane monomer. The treatment of chiral bis(oxazolinyl)phenylboranes with sodium cyclopentadienide provide optically active cyclopentadienyl-bis(oxazolinyl)borates H[PhB(C{sub 5}H{sub 5})(Ox{sup R}){sub 2}] [Ox{sup R} = Ox{sup 4S-iPr,Me2}, Ox{sup 4R-iPr,Me2}, Ox{sup 4S-tBu]}. These optically active proligands react with an equivalent of M(NMe{sub 2}){sub 4} (M = Ti, Zr, Hf) to afford corresponding cyclopentadienyl-bis(oxazolinyl)borato group 4 complexes {PhB(C{sub 5}H{sub 4})(Ox{sup R}){sub 2}}M(NMe{sub 2}){sub 2} in high yields. These group 4 compounds catalyze cyclization of aminoalkenes at room temperature or below, providing pyrrolidine, piperidine, and azepane with enantiomeric excesses up to 99%. Our mechanistic investigations suggest a non-insertive mechanism involving concerted C−N/C−H bond formation in the turnover limiting step of the catalytic cycle. Among cyclopentadienyl-bis(oxazolinyl)borato group 4 catalysts, the zirconium complex {PhB(C{sub …
Date: December 17, 2012
Creator: Manna, Kuntal
Object Type: Thesis or Dissertation
System: The UNT Digital Library
"Development and Neutronic Validation of pelletized Cold and Very Cold Moderators for Pulsed Neutron Sources" Phase II Final report (open access)

"Development and Neutronic Validation of pelletized Cold and Very Cold Moderators for Pulsed Neutron Sources" Phase II Final report

Intense beams of cold neutrons are produced at several DOE facilities and are used by researchers to study the microscopic structure of materials. Energetic neutrons are produced by a high energy proton beam impacting a target. The fast neutrons are converted to the desired cold neutrons passing through a cryogenic moderator vessel, presently filled with dense cold hydrogen gas. Moderators made from solid methane have demonstrated superior performance to the hydrogen moderators but cannot be implemented on high power sources such as the SNS due to the difficulty of removing heat from the solid blocks of methane. Cryogenic Applications F, Inc has developed the methane pellet formation and transport technologies needed to produce a hydrogen cooled solid methane pellet moderator, potentially capable of being used in a high power spallation neutron facility. Such a methane pellet moderator could double the brightness of the neutron beam. Prior to this work a methane pellet moderator had not been produced or studied. The Indiana University LENS facility is a small pulsed neutron source used in part to study and develop cold neutron moderators. In this project cold neutrons were produced in a solid methane pellet moderator and analyzed with the LENS facility diagnostics. …
Date: November 17, 2012
Creator: Foster, Christopher & Baxter, David V
Object Type: Report
System: The UNT Digital Library
Aftershock Analysis for SPE2 (open access)

Aftershock Analysis for SPE2

None
Date: October 17, 2012
Creator: Sweeney, J. J. & Harben, P.
Object Type: Report
System: The UNT Digital Library
ANNOTATED BIBLIOGRAPHY OF BERYLLIUM (open access)

ANNOTATED BIBLIOGRAPHY OF BERYLLIUM

None
Date: October 17, 2012
Creator: de Pruneda, J H
Object Type: Report
System: The UNT Digital Library
Correlation of UV damage threshold with post-annealing in CVD-grown SiO2 overlayers on etched fused silica substrates (open access)

Correlation of UV damage threshold with post-annealing in CVD-grown SiO2 overlayers on etched fused silica substrates

None
Date: October 17, 2012
Creator: Matthews, M.; Shen, N.; Elhadj, S.; Miller, P.; Nelson, A.; Laurence, T. et al.
Object Type: Article
System: The UNT Digital Library
More Than Meets the Eye: Clandestine Funding, Cutting-Edge Technology and China's Cyber Research & Development Program (open access)

More Than Meets the Eye: Clandestine Funding, Cutting-Edge Technology and China's Cyber Research & Development Program

None
Date: October 17, 2012
Creator: Conklin, C & Bahney, B W
Object Type: Report
System: The UNT Digital Library
SRNL RADIONUCLIDE FIELD LYSIMETER EXPERIMENT: BASELINE CONSTRUCTION AND IMPLEMENTATION (open access)

SRNL RADIONUCLIDE FIELD LYSIMETER EXPERIMENT: BASELINE CONSTRUCTION AND IMPLEMENTATION

The purpose of this document is to compile information regarding experimental design, facility design, construction, radionuclide source preparation, and path forward for the ten year Savannah River National Laboratory (SRNL) Radionuclide Field Lysimeter Experiment at the Savannah River Site (SRS). This is a collaborative effort by researchers at SRNL and Clemson University. The scientific objectives of this study are to: Study long-term radionuclide transport under conditions more representative of vadose zone conditions than laboratory experiments; Provide more realistic quantification of radionuclide transport and geochemistry in the vadose zone, providing better information pertinent to radioactive waste storage solutions than presently exists; Reduce uncertainty and improve justification for geochemical models such as those used in performance assessments and composite analyses.
Date: October 17, 2012
Creator: Roberts, K.; Kaplan, D.; Bagwell, L.; Powell, B.; Almond, P.; Emerson, H. et al.
Object Type: Report
System: The UNT Digital Library
Acceleration and transportation of multiple ion species at EBIS-based preinjector (open access)

Acceleration and transportation of multiple ion species at EBIS-based preinjector

N/A
Date: September 17, 2012
Creator: Raparia, D.
Object Type: Article
System: The UNT Digital Library
Analysis of the Formation Enthalpy Dataset (open access)

Analysis of the Formation Enthalpy Dataset

None
Date: September 17, 2012
Creator: Kamath, C
Object Type: Report
System: The UNT Digital Library
Calculation of spin resonance harmonics in an accelerator with snakes (open access)

Calculation of spin resonance harmonics in an accelerator with snakes

N/A
Date: September 17, 2012
Creator: Ptitsyn, V. & Khalil, N.
Object Type: Article
System: The UNT Digital Library
Design Specification for Beam Containment System Ion Chamber Gas Systems (open access)

Design Specification for Beam Containment System Ion Chamber Gas Systems

None
Date: September 17, 2012
Creator: Mao, Stan; Bennett, Brian; Field, Clive; Gioumousis, Andrew; Jobe, Keith; Miller, Paul et al.
Object Type: Report
System: The UNT Digital Library
Evaluation of Recent Trailer Contamination and Supersack Integrity Issues (open access)

Evaluation of Recent Trailer Contamination and Supersack Integrity Issues

During the period from fiscal year (FY) 2009 to FY 2011, there were a total of 21 incidents involving radioactively contaminated shipment trailers and 9 contaminated waste packages received at the Nevada National Security Site (NNSS) Area 5 Radioactive Waste Management Site (RWMS). During this time period, the EnergySolutions (ES) Clive, Utah, disposal facility had a total of 18 similar incidents involving trailer and package contamination issues. As a result of the increased occurrence of such incidents, DOE Environmental Management Headquarters (EM/HQ) Waste Management organization (EM-30) requested that the Energy Facility Contractors’ Group (EFCOG) Waste Management Working Group (WMWG) conduct a detailed review of these incidents and report back to EM-30 regarding the results of this review, including providing any recommendations formulated as a result of the evaluation of current site practices involving handling and management of radioactive material and waste shipments.
Date: September 17, 2012
Creator: Gordon, S.
Object Type: Report
System: The UNT Digital Library
Ground Vibration Measurements at LHC Point 4 (open access)

Ground Vibration Measurements at LHC Point 4

Ground vibration was measured at Large Hadron Collider (LHC) Point 4 during the winter shutdown in February 2012. This report contains the results, including power and coherence spectra. We plan to collect and analyze vibration data from representative collider halls to inform specifications for future linear colliders, such as ILC and CLIC. We are especially interested in vibration correlations between final focus lens locations.
Date: September 17, 2012
Creator: Bertsche, Kirk & Gaddi, Andrea
Object Type: Report
System: The UNT Digital Library
Lessons Learned from PNNL Support to Army Corp of Engineers Munitions Sites (open access)

Lessons Learned from PNNL Support to Army Corp of Engineers Munitions Sites

Lessons Learned from PNNL Support to Army Corp of Engineers Munitions Sites
Date: September 17, 2012
Creator: Pulsipher, Brent A.; Hathaway, John E.; Wilson, John E. & Newburn, Lisa LN
Object Type: Report
System: The UNT Digital Library