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Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

LEACHING OF TITANIUM FROM MONOSODIUM TITANATE AND MODIFIED MST  

SciTech Connect (OSTI)

Analysis of a fouled coalescer and pre-filters from Actinide Removal Process/Modular Caustic Side Solvent Extraction Unit (ARP/MCU) operations showed evidence of Ti containing solids. Based on these results a series of tests were planned to examine the extent of Ti leaching from monosodium titanate (MST) and modified monosodium titanate (mMST) in various solutions. The solutions tested included a series of salt solutions with varying free hydroxide concentrations, two sodium hydroxide concentrations, 9 wt % and 15 wt %, nitric and oxalic acid solutions. Overall, the amount of Ti leached from the MST and mMST was much greater in the acid solutions compared to the sodium hydroxide or salt solutions, which is consistent with the expected trend. The leaching data also showed that increasing hydroxide concentration, whether pure NaOH solution used for filter cleaning in ARP or the waste salt solution, increased the amount of Ti leached from both the MST and mMST. For the respective nominal contact times with the MST solids - for filter cleaning or the normal filter operation, the dissolved Ti concentrations are comparable suggesting either cause may contribute to the increased Ti fouling on the MCU coalescers. Tests showed that Ti containing solids could be precipitated from solution after the addition of scrub acid and a decrease in temperature similar to expected in MCU operations. FTIR analysis of these solids showed some similarity to the solids observed on the fouled coalescer and pre-filters. Although only a cursory study, this information suggests that the practice of increasing free hydroxide in feed solutions to MCU as a mitigation to aluminosilicate formation may be offset by the impact of formation of Ti solids in the overall process. Additional consideration of this finding from MCU and SWPF operation is warranted.

Taylor-Pashow, K.; Fondeur, F.; Fink, S.

2012-08-01T23:59:59.000Z

2

RADIUM AND THORIUM SORPTION BY MONOSODIUM TITANATE (MST) AND MODIFIED MST (mMST)  

SciTech Connect (OSTI)

A series of tests were planned to examine the removal of Ra and Th by monosodium titanate (MST) and modified monosodium titanate (mMST). Simulated waste solutions were prepared containing Ra and Th, along with Sr, Np, Pu, and U. Following simulant preparation the simulants were filtered through 0.45-m filters. Analysis of the simulants indicated no Th in the filtered solution. This is due to the very low solubility of Th in alkaline solutions. Based on the reported detection limits for {sup 228}Th by gamma analyses, the solubility of Th in the simulant solutions is < 3.0E-10 g/L or < 1.3E-12 M. Therefore, data could not be obtained regarding the removal of Th by MST and mMST; however, testing proceeded to examine the removal of Ra. Sorption testing indicated that Ra, like Sr, is very rapidly removed from solution by both MST and mMST. The Ra concentration in solution fell below the method detection limit (MDL) within 30 minutes of contact with MST, and within 2 hours of contact with mMST, when tested at 25 C using a 5.6 M Na simulant. Additional testing examined the effects of ionic strength and temperature on the MST and mMST performance. Results from these tests showed that the majority of samples still reached a Ra concentration below the MDL, indicating excellent removal. For the highest ionic strength solution (6.6 M Na), there did appear to be a slight decrease in the Ra removal by mMST, as indicated by a larger number of samples just above the MDL. The effect of temperature on {sup 226}Ra removal is indeterminate for either MST or mMST in the temperature range (25-60 C) and concentrations studied since the final soluble concentration of Ra remained at or below the detection limits for all tests. Desorption testing was also performed using decontaminated salt solution (DSS) diluted to sodium concentrations of 2 M and 0.5 M, to represent the intermediate and final stages of washing. Results from these tests indicated no desorption of any sorbents, with the exception of Pu from mMST, which desorbed slightly (0.02%). Rather, the testing showed additional sorption of sorbates, likely due to the higher sorbent concentrations in these tests compared to the concentrations used for loading (i.e. 13 g/L vs. 0.4 g/L). SRNL recommends additional testing to confirm the low solubility of Th in a range of simulants representing SRS HLW. We also recommend additional sorption testing with simulants containing a higher concentration of {sup 226}Ra, to allow for the determination of actual DF values, rather than the minimum DF values reported here.

Taylor-Pashow, K.; Hobbs, D.

2012-02-15T23:59:59.000Z

3

Rheology Of MonoSodium Titanate (MST) And Modified Mst (mMST) Mixtures Relevant To The Salt Waste Processing Facility  

SciTech Connect (OSTI)

The Savannah River National Laboratory performed measurements of the rheology of suspensions and settled layers of treated material applicable to the Savannah River Site Salt Waste Processing Facility. Suspended solids mixtures included monosodium titanate (MST) or modified MST (mMST) at various solid concentrations and soluble ion concentrations with and without the inclusion of kaolin clay or simulated sludge. Layers of settled solids were MST/sludge or mMST/sludge mixtures, either with or without sorbed strontium, over a range of initial solids concentrations, soluble ion concentrations, and settling times.

Koopman, D. C.; Martino, C. J.; Shehee, T. C.; Poirier, M. R.

2013-07-31T23:59:59.000Z

4

Analysis of Harrell Monosodium Titanate Lot #46000824120  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot #46000824120 qualification and the 16 verification samples failed to meet the specification for weight percent solids. All of the pails sampled and tested contained less than 15 wt % MST solids.

Taylor-Pashow, K. M.L.

2013-01-23T23:59:59.000Z

5

Analysis of Harrell Monosodium Titanate Lot #46000908120  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot #46000908120 qualification and the 16 verification samples failed to meet the specification for weight percent solids. All of the pails sampled and tested contained less than 15 wt % MST solids.

Taylor-Pashow, K. M.L.

2013-01-23T23:59:59.000Z

6

ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #052511  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot No.052511 qualification and 14 verification samples met all the requirements in the specification indicating the material is acceptable for use in the process.

Taylor-Pashow, K.

2011-08-22T23:59:59.000Z

7

ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #46000524120  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot No.46000524120 qualification and the 14 verification samples met each of the selected specification requirements that were tested and, consequently, the material is acceptable for use in the ARP process.

Taylor-Pashow, K.

2012-08-29T23:59:59.000Z

8

ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #071311  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot No.071311 qualification and 12 verification samples met all the requirements in the specification indicating the material is acceptable for use in the process.

Taylor-Pashow, K.

2011-10-04T23:59:59.000Z

9

ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #46000619120  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot #46000619120 qualification and the 13 verification samples met each of the selected specification requirements that were tested and, consequently, the material is acceptable for use in the ARP process.

Taylor-Pashow, K.

2012-09-06T23:59:59.000Z

10

ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #120111  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot No.120111 qualification and the first 12 verification samples met all the requirements in the specification indicating the material is acceptable for use in the process. Analyses of Pail 125 verification sample fails the criteria for solids content and has measurably lower pH, density, and total bottle weight. The verification sample for Pail 125 was retested for weight percent solids after checking that all of the solids had been suspended. The sample again failed to meet acceptance criteria. SRNL recommends accepting Pails 1 through 120. Pails 121 through 125 should be rejected and returned to the vendor.

Shehee, T.

2012-02-21T23:59:59.000Z

11

ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #03031  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot 030311 qualification and 9 verification samples met all the requirements in the specification indicating the material is acceptable for use in the process. Harrell Industries is under contract with Savannah River Remediation to provide MST for use in the Actinide Removal Process (ARP). A 500-mL qualification sample for Lot 030311 was sent to the Savannah River National Laboratory (SRNL) to confirm the material meets the requirements specified in the purchase specification. The vendor is also obligated to send verification samples from {approx}10% or more of the pails of MST product for each lot (distributed roughly evenly through the entire lot of pails). For the verification of this lot, Harrell Industries sent 9 samples, one each from pails 1, 5, 15, 20, 25, 30, 40, 45, and 55 of 59 total pails.

Taylor-Pashow, K.

2011-05-16T23:59:59.000Z

12

Final Report on Phase III Testing of Monosodium Titanate Adsorption Kinetics  

SciTech Connect (OSTI)

This study consisted of a statistically designed set of tests to determine the extent and rate of adsorption of strontium, plutonium, uranium, and neptunium as a function of temperature, monosodium titanate (MST) concentration, and concentrations of sodium, strontium, plutonium, uranium, and neptunium.

Hobbs, D.T.

1999-09-29T23:59:59.000Z

13

Resuspension and Settling of Monosodium Titanate and Sludge in Supernate Simulate for the Savannah River Site  

SciTech Connect (OSTI)

The Savannah River Site (SRS) is testing several methods for their effectiveness in removing the major radionuclides from the supernate solutions that are stored in the high-level waste tanks at the site. One option is to mix the tank contents (sludge and supernate), in situ, with monosodium titanate (MST) powder to remove 90Sr and transuranics. The sludge and MST would be allowed to settle, and thet reated supernate would then be decanted. The sludge and MST would need to be resuspended later so that the solids could be pumped to the Defense Waste Processing Facility for vitrification. Small-scale tests evaluated the effect of various storage conditions on the rheological properties of the sludge/MST slurry. Laboratory-scale and pilot-scale tests were conducted to determine the mixing requirements for resuspending slurries of sludge simulant and MST, following settleing periods of various lengths.`

Taylor, P.A.; Mattus, C.H.

1999-10-01T23:59:59.000Z

14

ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #s 46000606120, 46000722120, AND 46000808120  

SciTech Connect (OSTI)

Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot #s 46000706120, 46000722120, and 460008081120 qualification and verification samples met each of the selected specification requirements that were tested with the exception of a few pails being marginally below the lower weight percent solids limit. These deviations from the specifications are viewed as negligible since the corresponding density of the slurries indicates no appreciable shortage of MST solids. Therefore, SRNL recommends acceptance and use of these pails.

Taylor-Pashow, K.

2012-10-08T23:59:59.000Z

15

TAILORING INORGANIC SORBENTS FOR SRS STRONTIUM AND ACTINIDE SEPARATIONS: OPTIMIZED MONOSODIUM TITANATE PHASE II FINAL REPORT  

SciTech Connect (OSTI)

This document provides a final report of Phase II testing activities for the development of a modified monosodium titanate (MST) that exhibits improved strontium and actinide removal characteristics compared to the baseline MST material. The activities included determining the key synthesis conditions for preparation of the modified MST, preparation of the modified MST at a larger scale by a commercial vendor, demonstration of the strontium and actinide removal characteristics with actual tank waste supernate and measurement of filtration characteristics. Key findings and conclusions include the following. Testing evaluated three synthetic methods and eleven process parameters for the optimum synthesis conditions for the preparation on an improved form of MST. We selected the post synthesis method (Method 3) for continued development based on overall sorbate removal performance. We successfully prepared three batches of the modified MST using Method 3 procedure at a 25-gram scale. The laboratory prepared modified MST exhibited increased sorption kinetics with simulated and actual waste solutions and similar filtration characteristics to the baseline MST. Characterization of the modified MST indicated that the post synthesis treatment did not significantly alter the particle size distribution, but did significantly increase the surface area and porosity compared to the original MST. Testing indicated that the modified MST exhibits reduced affinity for uranium compared to the baseline MST, reducing risk of fissile loading. Shelf-life testing indicated no change in strontium and actinide performance removal after storing the modified MST for 12-months at ambient laboratory temperature. The material releases oxygen during the synthesis and continues to offgas after the synthesis at a rapidly diminishing rate until below a measurable rate after 4 months. Optima Chemical Group LLC prepared a 15-kilogram batch of the modified MST using the post synthesis procedure (Method 3). Performance testing with simulated and actual waste solutions indicated that the material performs as well as or better than batches of modified MST prepared at the laboratory-scale. Particle size data of the vendor-prepared modified MST indicates a broader distribution centered at a larger particle size and microscopy shows more irregular particle morphology compared to the baseline MST and laboratory prepared modified MST. Stirred-cell (i.e., dead-end) filter testing revealed similar filtration rates relative to the baseline MST for both the laboratory and vendor-prepared modified MST materials. Crossflow filtration testing indicated that with MST-only slurries, the baseline MST produced between 30-100% higher flux than the vendor-prepared modified MST at lower solids loadings and comparable flux at higher solids loadings. With sludge-MST slurries, the modified MST produced 1.5-2.2 times higher flux than the baseline MST at all solids loadings. Based on these findings we conclude that the modified MST represents a much improved sorbent for the separation of strontium and actinides from alkaline waste solutions and recommend continued development of the material as a replacement for the baseline MST for waste treatment facilities at the Savannah River Site.

Hobbs, D; Thomas Peters, T; Michael Poirier, M; Mark Barnes, M; Major Thompson, M; Samuel Fink, S

2007-06-29T23:59:59.000Z

16

STRONTIUM AND ACTINIDE SEPARATIONS FROM HIGH LEVEL NUCLEAR WASTE SOLUTIONS USING MONOSODIUM TITANATE 1. SIMULANT TESTING  

SciTech Connect (OSTI)

High-level nuclear waste produced from fuel reprocessing operations at the Savannah River Site (SRS) requires pretreatment to remove {sup 137}Cs, {sup 90}Sr and alpha-emitting radionuclides (i.e., actinides) prior to disposal. Separation processes planned at SRS include caustic side solvent extraction, for {sup 137}Cs removal, and ion exchange/sorption of {sup 90}Sr and alpha-emitting radionuclides with an inorganic material, monosodium titanate (MST). The predominant alpha-emitting radionuclides in the highly alkaline waste solutions include plutonium isotopes {sup 238}Pu, {sup 239}Pu and {sup 240}Pu. This paper provides a summary of data acquired to measure the performance of MST to remove strontium and actinides from simulated waste solutions. These tests evaluated the influence of ionic strength, temperature, solution composition and the oxidation state of plutonium.

HOBBS, D. T.; BARNES, M. J.; PULMANO, R. L.; MARSHALL, K. M.; EDWARDS, T. B.; BRONIKOWSKI, M. G.; FINK, S. D.

2005-04-14T23:59:59.000Z

17

REVIEW OF EXPERIMENTAL STUDIES INVESTIGATING THE RATE OF STRONTIUM AND ACTINIDE ADSORPTION BY MONOSODIUM TITANATE  

SciTech Connect (OSTI)

A number of laboratory studies have been conducted to determine the influence of mixing and mixing intensity, solution ionic strength, initial sorbate concentrations, temperature, and monosodium titanate (MST) concentration on the rates of sorbate removal by MST in high-level nuclear waste solutions. Of these parameters, initial sorbate concentrations, ionic strength, and MST concentration have the greater impact on sorbate removal rates. The lack of a significant influence of mixing and mixing intensity on sorbate removal rates indicates that bulk solution transport is not the rate controlling step in the removal of strontium and actinides over the range of conditions and laboratory-scales investigated. However, bulk solution transport may be a significant parameter upon use of MST in a 1.3 million-gallon waste tank such as that planned for the Small Column Ion Exchange (SCIX) program. Thus, Savannah River National Laboratory (SRNL) recommends completing the experiments in progress to determine if mixing intensity influences sorption rates under conditions appropriate for this program. Adsorption models have been developed from these experimental studies that allow prediction of strontium (Sr), plutonium (Pu), neptunium (Np) and uranium (U) concentrations as a function of contact time with MST. Fairly good agreement has been observed between the predicted and measured sorbate concentrations in the laboratory-scale experiments.

Hobbs, D.

2010-10-01T23:59:59.000Z

18

PILOT SCALE TESTING OF MONOSODIUM TITANATE MIXING FOR THE SRS SMALL COLUMN ION EXCHANGE PROCESS - 11224  

SciTech Connect (OSTI)

The Small Column Ion Exchange (SCIX) process is being developed to remove cesium, strontium, and select actinides from Savannah River Site (SRS) Liquid Waste using an existing 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 monosodium titanate (MST), crystalline silicotitanate (CST), and simulated sludge. The purpose of this pilot scale testing is to determine the requirements for the pumps to suspend the MST particles so that they can contact the strontium and actinides in the liquid and be removed from the tank. The pilot-scale tank is a 1/10.85 linear scaled model of SRS 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). The conclusions from this work follow: (i) Neither two standard slurry pumps nor two quad volute slurry pumps will provide sufficient power to initially suspend MST in an SRS waste tank. (ii) Two Submersible Mixer Pumps (SMPs) will provide sufficient power to initially suspend MST in an SRS waste tank. However, the testing shows the required pump discharge velocity is close to the maximum discharge velocity of the pump (within 12%). (iii) Three SMPs will provide sufficient power to initially suspend MST in an SRS waste tank. The testing shows the required pump discharge velocity is 66% of the maximum discharge velocity of the pump. (iv) Three SMPs are needed to resuspend MST that has settled in a waste tank at nominal 45 C for four weeks. The testing shows the required pump discharge velocity is 77% of the maximum discharge velocity of the pump. Two SMPs are not sufficient to resuspend MST that settled under these conditions.

Poirier, M.; Restivo, M.; Williams, M.; Herman, D.; Steeper, T.

2011-01-25T23:59:59.000Z

19

THE HYDROTHERMAL REACTIONS OF MONOSODIUM TITANATE, CRYSTALLINE SILICOTITANATE AND SLUDGE IN THE MODULAR SALT PROCESS: A LITERATURE SURVEY  

SciTech Connect (OSTI)

The use of crystalline silicotitanate (CST) is proposed for an at-tank process to treat High Level Waste at the Savannah River Site. The proposed configuration includes deployment of ion exchange columns suspended in the risers of existing tanks to process salt waste without building a new facility. The CST is available in an engineered form, designated as IE-911-CW, from UOP. Prior data indicates CST has a proclivity to agglomerate from deposits of silica rich compounds present in the alkaline waste solutions. This report documents the prior literature and provides guidance for the design and operations that include CST to mitigate that risk. The proposed operation will also add monosodium titanate (MST) to the supernate of the tank prior to the ion exchange operation to remove strontium and select alpha-emitting actinides. The cesium loaded CST is ground and then passed forward to the sludge washing tank as feed to the Defense Waste Processing Facility (DWPF). Similarly, the MST will be transferred to the sludge washing tank. Sludge processing includes the potential to leach aluminum from the solids at elevated temperature (e.g., 65 C) using concentrated (3M) sodium hydroxide solutions. Prior literature indicates that both CST and MST will agglomerate and form higher yield stress slurries with exposure to elevated temperatures. This report assessed that data and provides guidance on minimizing the impact of CST and MST on sludge transfer and aluminum leaching sludge.

Fondeur, F.; Pennebaker, F.; Fink, S.

2010-11-11T23:59:59.000Z

20

FATE OF FISSILE MATERIAL BOUND TO MONOSODIUM TITANATE DURING COOPER CATALYZED PEROXIDE OXIDATION OF TANK 48H WASTE  

SciTech Connect (OSTI)

At the Savannah River Site (SRS), Tank 48H currently holds approximately 240,000 gallons of slurry which contains potassium and cesium tetraphenylborate (TPB). A copper catalyzed peroxide oxidation (CCPO) reaction is currently being examined as a method for destroying the TPB present in Tank 48H. Part of the development of that process includes an examination of the fate of the Tank 48H fissile material which is adsorbed onto monosodium titanate (MST) particles. This report details results from experiments designed to examine the potential degradation of MST during CCPO processing and the subsequent fate of the adsorbed fissile material. Experiments were conducted to simulate the CCPO process on MST solids loaded with sorbates in a simplified Tank 48H simulant. Loaded MST solids were placed into the Tank 48H simplified simulant without TPB, and the experiments were then carried through acid addition (pH adjustment to 11), peroxide addition, holding at temperature (50 C) for one week, and finally NaOH addition to bring the free hydroxide concentration to a target concentration of 1 M. Testing was conducted without TPB to show the maximum possible impact on MST since the competing oxidation of TPB with peroxide was absent. In addition, the Cu catalyst was also omitted, which will maximize the interaction of H{sub 2}O{sub 2} with the MST; however, the results may be non-conservative assuming the Cu-peroxide active intermediate is more reactive than the peroxide radical itself. The study found that both U and Pu desorb from the MST when the peroxide addition begins, although to different extents. Virtually all of the U goes into solution at the beginning of the peroxide addition, whereas Pu reaches a maximum of {approx}34% leached during the peroxide addition. Ti from the MST was also found to come into solution during the peroxide addition. Therefore, Ti is present with the fissile in solution. After the peroxide addition is complete, the Pu and Ti are found to precipitate from solution, while the U remains in solution throughout the remaining processes, including pH adjustment to 1 M free hydroxide. The Ti is likely forming a peroxotitanate material, which can then resorb the leached Pu from solution, but has a low affinity for U. Since Pu was not detected in the SEMEDS studies, it cannot be conclusively determined in what form the Pu returns to the solids; however, the Pu likely resorbed onto the peroxotitanate material. Based on the results of this experiment, Savannah River National Laboratory (SRNL) recommends the following experiments to further examine the fate of fissile material in CCPO processing of Tank 48H: (1) Repeat with full simulant matrix (organic and Cu catalyst present along with simulated radioactive sludge); and (2) Repeat of the above test after selection of final conditions (i.e., pH, temperature) if they differ from conditions tested.

Taylor-Pashow, K.

2012-08-09T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Microsoft Word - eMST report - for signature.docx  

Office of Scientific and Technical Information (OSTI)

as a 15 wt % suspension in water containing 0.10-0.15 M NaOH and 100-150 mg L -1 NaNO 2 . 2 Modified monosodium titanate (mMST) used in these studies was prepared by the...

22

PEROXOTITANATE- AND MONOSODIUM METAL-TITANATE COMPOUNDS AS INHIBITORS OF BACTERIAL GROWTH  

SciTech Connect (OSTI)

Sodium titanates are ion-exchange materials that effectively bind a variety of metal ions over a wide pH range. Sodium titanates alone have no known adverse biological effects but metal-exchanged titanates (or metal titanates) can deliver metal ions to mammalian cells to alter cell processes in vitro. In this work, we test a hypothesis that metal-titanate compounds inhibit bacterial growth; demonstration of this principle is one prerequisite to developing metal-based, titanate-delivered antibacterial agents. Focusing initially on oral diseases, we exposed five species of oral bacteria to titanates for 24 h, with or without loading of Au(III), Pd(II), Pt(II), and Pt(IV), and measuring bacterial growth in planktonic assays through increases in optical density. In each experiment, bacterial growth was compared with control cultures of titanates or bacteria alone. We observed no suppression of bacterial growth by the sodium titanates alone, but significant (p < 0.05, two-sided t-tests) suppression was observed with metal-titanate compounds, particularly Au(III)-titanates, but with other metal titanates as well. Growth inhibition ranged from 15 to 100% depending on the metal ion and bacterial species involved. Furthermore, in specific cases, the titanates inhibited bacterial growth 5- to 375-fold versus metal ions alone, suggesting that titanates enhanced metal-bacteria interactions. This work supports further development of metal titanates as a novel class of antibacterials.

Hobbs, D.

2011-01-19T23:59:59.000Z

23

Hydrogen peroxide modified sodium titanates with improved sorption capabilities  

DOE Patents [OSTI]

The sorption capabilities (e.g., kinetics, selectivity, capacity) of the baseline monosodium titanate (MST) sorbent material currently being used to sequester Sr-90 and alpha-emitting radioisotopes at the Savannah River Site are significantly improved when treated with hydrogen peroxide; either during the original synthesis of MST, or, as a post-treatment step after the MST has been synthesized. It is expected that these peroxide-modified MST sorbent materials will have significantly improved sorption capabilities for non-radioactive cations found in industrial processes and waste streams.

Nyman, May D. (Albuquerque, NM); Hobbs, David T. (North Augusta, SC)

2009-02-24T23:59:59.000Z

24

Sample results from the integrated salt disposition program macrobatch 6 tank 21H qualifications MST solids sample  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) performed experiments on qualification material for use in the Integrated Salt Disposition Program (ISDP) Batch 6 processing. As part of this qualification work, SRNL performed an Actinide Removal Process (ARP) test. From this test, the residual monosodium titanate (MST) was analyzed for radionuclide uptake. The results of these analyses are reported and are within historical precedent.

Peters, T. B.

2013-02-26T23:59:59.000Z

25

STRONTIUM AND ACTINIDE SORPTION BY MST AND MMST UNDER CONDITIONS REVELANT TO THE SMALL COLUMN ION-EXCHANGE PROCESS  

SciTech Connect (OSTI)

A series of tests were performed to examine the kinetics of Sr and actinide removal by monosodium titanate (MST) and modified monosodium titanate (mMST) under mixing conditions similar to what will be provided in the Small Column Ion Exchange (SCIX) Program. Similar removal kinetics were seen for two different mixing energies, indicating that under these conditions bulk solution transport is not the rate limiting step for Sr and actinide removal. Sr removal was found to be rapid for both MST and mMST, reaching steady-state conditions within six hours. In contrast, at least six weeks is necessary to reach steady-state conditions for Pu with MST. For mMST, steady-state conditions for Pu were achieved within two weeks. The actual contact time required for the SCIX process will depend on starting sorbate concentrations as well as the requirements for the decontaminated salt solution. During testing leaks occurred in both the MST and mMST tests and evidence of potential desorption was observed. The desorption likely occurred as a result of the change in solids to liquid phase ratio that occurred due to the loss of solution. Based on these results, Savannah River National Laboratory (SRNL) recommended additional testing to further study the effect of changing phase ratios on desorption. This testing is currently in progress and results will be documented in a separate report.

Taylor-Pashow, K.; Hobbs, D.; Poirier, M.

2011-05-06T23:59:59.000Z

26

Interim salt disposition program macrobatch 6 tank 21H qualification monosodium titanate and cesium mass transfer tests  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) performed experiments on qualification material for use in the Interim Salt Disposition Program (ISDP) Batch 6 processing. This qualification material was a set of six samples from Tank 21H in October 2012. This sample was used as a real waste demonstration of the Actinide Removal Process (ARP) and the Extraction-Scrub-Strip (ESS) tests process. The Tank 21H sample was contacted with a reduced amount (0.2 g/L) of MST and characterized for strontium and actinide removal at 0 and 8 hour time intervals in this salt batch. {sup 237}Np and {sup 243}Am were both observed to be below detection limits in the source material, and so these results are not reported in this report. The plutonium and uranium samples had decontamination factor (DF) values that were on par or slightly better than we expected from Batch 5. The strontium DF values are slightly lower than expected but still in an acceptable range. The Extraction, Scrub, and Strip (ESS) testing demonstrated cesium removal, stripping and scrubbing within the acceptable range. Overall, the testing indicated that cesium removal is comparable to prior batches at MCU.

Washington, A. L. II; Peters, T. B.; Fink, S. D.

2013-02-25T23:59:59.000Z

27

DEVELOPMENT OF PROTOTYPE TITANATE ION EXCHANGE LOADED MEMBRANES FOR STRONTIUM, CESIUM AND ACTINIDE DECONTAMINATION FROM AQUEOUS MEDIA  

SciTech Connect (OSTI)

We have successfully incorporated high surface area particles of titanate ion exchange materials (monosodium titanate and crystalline silicotitanate) with acceptable particle size distribution into porous and inert support membrane fibrils consisting of polytetrafluoroethylene (Teflon{reg_sign}), polyethylene and cellulose materials. The resulting membrane sheets, under laboratory conditions, were used to evaluate the removal of surrogate radioactive materials for cesium-137 and strontium-90 from high caustic nuclear waste simulants. These membrane supports met the nominal requirement for nonchemical interaction with the embedded ion exchange materials and were porous enough to allow sufficient liquid flow. Some of this 47-mm size stamped out prototype titanium impregnated ion exchange membrane discs was found to remove more than 96% of dissolved cesium-133 and strontium-88 from a caustic nuclear waste salt simulants. Since in traditional ion exchange based column technology monosodium titanate (MST) is known to have great affinity for the sorbing of other actinides like plutonium, neptunium and even uranium, we expect that the MST-based membranes developed here, although not directly evaluated for uptake of these three actinides because of costs associated with working with actinides which do not have 'true' experimental surrogates, would also show significant affinity for these actinides in aqueous media. It was also observed that crystalline silicotitanate impregnated polytetrafluoroethylene or polyethylene membranes became less selective and sorbed both cesium and strontium from the caustic aqueous salt simulants.

Oji, L; Keisha Martin, K; David Hobbs, D

2008-05-30T23:59:59.000Z

28

INVESTIGATING SUSPENSION OF MST, CST, AND SIMULATED SLUDGE SLURRIES IN A PILOT-SCALE WASTE TANK  

SciTech Connect (OSTI)

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 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. The purpose of this pilot scale testing is for the pumps to resuspend the MST, CST, and simulated sludge particles so that they can be removed from the tank, and to suspend the MST so it can contact strontium and actinides. The pilot-scale tank is a 1/10.85 linear scaled 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, B3, and B1). Previous testing showed that three Submersible Mixer Pumps (SMPs) will provide sufficient power to initially suspend MST in an SRS waste tank, and to resuspend MST that has settled in a waste tank at nominal 45 C for four weeks. The conclusions from this analysis are: (1) Three SMPs will be able to resuspend more than 99.9% of the MST and CST that has settled for four weeks at nominal 45 C. The testing shows the required pump discharge velocity is 84% of the maximum discharge velocity of the pump. (2) Three SMPs will be able to resuspend more than 99.9% of the MST, CST, and simulated sludge that has settled for four weeks at nominal 45 C. The testing shows the required pump discharge velocity is 82% of the maximum discharge velocity of the pump. (3) A contact time of 6-12 hours is needed for strontium sorption by MST in a jet mixed tank with cooling coils, which is consistent with bench-scale testing and actinide removal process (ARP) operation.

Poirier, M.; Qureshi, Z.; Restivo, M.; Steeper, T.; Williams, M.

2011-05-24T23:59:59.000Z

29

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

SciTech Connect (OSTI)

Experimental results for the selective removal of strontium and cesium from simulated waste solutions with monosodium titanate (MST) and crystalline silicotitanate (CST) laden filter cartridges are presented. In these proof-of-principle tests, effective uptake of both Sr-85 and Cs-137 were observed using ion-exchangers in this filter cartridge configuration. At low salt simulant conditions, the instantaneous decontamination factor (D{sub F}) for Sr-85 with MST impregnated filter membrane cartridges measured 26, representing 96% Sr-85 removal efficiency. On the other hand, the Sr-85 instantaneous D{sub F} with co-sintered active MST cartridges measured 40 or 98% Sr-85 removal efficiency. Strontium-85 removal with the MST impregnated membrane cartridges and CST impregnated membrane cartridges, placed in series arrangement, produced an instantaneous decontamination factor of 41 compared to an instantaneous decontamination factor of 368 for strontium-85 with co-sintered active MST cartridges and co-sintered active CST cartridges placed in series. Overall, polyethylene co-sintered active titanates cartridges performed as well as titanate impregnated filter membrane cartridges in the uptake of strontium. At low ionic strength conditions, there was a significant uptake of Cs-137 with co-sintered CST cartridges. Tests results with CST impregnated membrane cartridges for Cs-137 decontamination are currently being re-evaluated. Based on these preliminary findings we conclude that incorporating MST and CST sorbents into membranes represent a promising method for the semi-continuous removal of radioisotopes of strontium and cesium from nuclear waste solutions.

Oji, L.; Martin, K.; Hobbs, D.

2011-11-10T23:59:59.000Z

30

Sample Results From The Interim Salt Disposition Program Macrobatch 7 Tank 21H Qualification MST Solids Sample  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) performed experiments on qualification material for use in the Interim Salt Disposition Program (ISDP) Batch 7 processing. The Marcrobatch 7 material was received with visible fine particulate solids, atypical for these samples. The as received material was allowed to settle for a period greater than 24 hours. The supernatant was then decanted and utilized as our clarified feed material. As part of this qualification work, SRNL performed an Actinide Removal Process (ARP) test using the clarified feed material. From this test, the residual monosodium titanate (MST) was analyzed for radionuclide uptake after filtration from H-Tank Farm (HTF) feed salt solution. The results of these analyses are reported and are within historical precedent.

Washington, A. L. II; Peters, T. B.

2013-09-19T23:59:59.000Z

31

PILOT-SCALE TESTING OF THE SUSPENSION OF MST, CST, AND SIMULATED SLUDGE SLURRIES IN A SLUDGE TANK  

SciTech Connect (OSTI)

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 waste tank (i.e., Tank 41H) to house the process. Following strontium, actinide, and cesium removal, the concentrated solids will be transported to a sludge tank (i.e., monosodium titanate (MST)/sludge solids to Tank 42H or Tank 51H and crystalline silicotitanate (CST) to Tank 40H) for eventual transfer to the Defense Waste Processing Facility (DWPF). Savannah River National Laboratory (SRNL) is conducting pilot-scale mixing tests to determine the pump requirements for mixing MST, CST, and simulated sludge. The purpose of this pilot scale testing is to determine the pump requirements for mixing MST and CST with sludge in a sludge tank and to determine whether segregation of particles occurs during settling. Tank 40H and Tank 51H have four Quad Volute pumps; Tank 42H has four standard pumps. The pilot-scale tank is a 1/10.85 linear scaled model of Tank 40H. 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 40H. The pump locations correspond to the current locations in Tank 40H (Risers B2, H, B6, and G). The pumps are pilot-scale Quad Volute pumps. Additional settling tests were conducted in a 30 foot tall, 4 inch inner diameter clear column to investigate segregation of MST, CST, and simulated sludge particles during settling.

Poirier, M.; Qureshi, Z.; Restivo, M.; Steeper, T.; Williams, M.; Herman, D.

2011-08-02T23:59:59.000Z

32

U.S. Department of Energy Categorical Exclusion ...  

Broader source: Energy.gov (indexed) [DOE]

River Site AikenAikenSouth Carolina Samples of varying mixtures of simulated sludge, monosodium titanate (MST), crystallized silicotitanate (CST, ground or unground), and...

33

CX-009625: Categorical Exclusion Determination | Department of...  

Broader source: Energy.gov (indexed) [DOE]

Offices(s): Savannah River Operations Office Samples of varying mixtures of simulated sludge, monosodium titanate (MST), crystallized silicotitanate (CST, ground or unground), and...

34

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

SciTech Connect (OSTI)

This report describes experimental results for the selective removal of strontium and cesium from simulated waste solutions using monosodium titanate (MST) and crystalline silicotitanate (CST)-laden filter cartridges. Four types of ion exchange cartridge media (CST and MST designed by both 3M and POROX{reg_sign}) were evaluated. In these proof-of-principle tests effective uptake of both Sr-85 and Cs-137 was observed. However, the experiments were not performed long enough to determine the saturation levels or breakthrough curve for each filter cartridge. POREX{reg_sign} MST cartridges, which by design were based on co-sintering of the active titanates with polyethylene particles, seem to perform as well as the 3M-designed MST cartridges (impregnated filter membrane design) in the uptake of strontium. At low salt simulant conditions (0.29 M Na{sup +}), the instantaneous decontamination factor (D{sub F}) for Sr-85 with the 3M-design MST cartridge measured 26, representing the removal of 96% of the Sr-85. On the other hand, the Sr-85 instantaneous D{sub F} with the POREX{reg_sign} design MST cartridge measured 40 or 98% removal of the Sr-85. Strontium removal with the 3M-design MST and CST cartridges placed in series filter arrangement produced an instantaneous decontamination factor of 41 or 97.6% removal compared to an instantaneous decontamination factor of 368 or 99.7% removal of the strontium with the POREX{reg_sign} MST and CST cartridge design placed in series. At high salt simulant conditions (5.6 M Na{sup +}), strontium removal with 3M-designed MST cartridge only and with 3M-designed MST and CST cartridges operated in a series configuration were identical. The instantaneous decontamination factor and the strontium removal efficiency, under the above configuration, averaged 8.6 and 88%, respectively. There were no POREX{reg_sign} cartridge experiments using the higher ionic strength simulant solution. At low salt simulant conditions, the uptake of Cs-137 with POREX{reg_sign} CST cartridge out performed the 3M-designed CST cartridges. The POREX{reg_sign} CST cartridge, with a Cs-137 instantaneous decontamination factor of 55 and a Cs-137 removal efficiency of 98% does meet the Cs-137 decontamination goals in the low salt simulant liquor. The Cs-137 removal with 3M-designed CST cartridge produced a decontamination factor of 2 or 49% removal efficiency. The Cs-137 performance graph for the 3M-designed CST cartridge showed an early cessation in the uptake of cesium-137. This behavior was not observed with the POREX{reg_sign} CST cartridges. No Cs-137 uptake tests were performed with the POREX{reg_sign} CST cartridges at high salt simulant conditions. The 3M-designed CST cartridges, with an instantaneous Cs-137 decontamination factor of less than 3 and a Cs-137 removal efficiency of less than 50% failed to meet the Cs-137 decontamination goals in both the low and high salt simulant liquors. This poor performance in the uptake of Cs-137 by the 3M CST cartridges may be attributed to fabrication flaws for the 3M-designed CST cartridges. The reduced number of CST membrane wraps per cartridge during the cartridge design phase, from 3-whole wraps to about 1.5, may have contributed to Cs-137 laden simulant channeling/by-pass which led to the poor performance in terms of Cs-137 sorption characteristics for the 3M designed CST cartridges. The grinding of CST ion exchange materials, to reduce the particle size distribution and thus enhance their easy incorporation into the filter membranes and the co-sintering of MST with polyethylene particles, did not adversely affect the sorption kinetics of both CST and MST in the uptake of Cs-137 and Sr-85, respectively. In general, the POREX{reg_sign} based cartridges showed more resistance to simulant flow through the filter cartridges as evidenced by higher pressure differences across the cartridges. Based on these findings they conclude that incorporating MST and CST sorbents into filter membranes represent a promising method for the semi-continuous removal of radioisotopes of strontium a

Oji, L.; Martin, K.; Hobbs, D.

2011-05-26T23:59:59.000Z

35

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

SciTech Connect (OSTI)

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 membrane cartridges measured 26, representing 96% strontium-85 removal efficiency. On the other hand, the strontium-85 instantaneous decontamination factor with co-sintered active monosodium titanate cartridges measured 40 or 98% Sr-85 removal efficiency. Strontium-85 removal with the monosodium titanate impregnated membrane cartridges and crystalline silicotitanate impregnated membrane cartridges, placed in series arrangement, produced an instantaneous decontamination factor of 41 compared to an instantaneous decontamination factor of 368 for strontium-85 with co-sintered active monosodium titanate cartridges and co-sintered active crystalline silicotitanate cartridges placed in series. Overall, polyethylene co-sintered active titanates cartridges performed as well as titanate impregnated filter membrane cartridges in the uptake of strontium. At low ionic strength conditions, there was a significant uptake of cesium-137 with co-sintered crystalline silicotitanate cartridges. Tests results with crystalline silicotitanate impregnated membrane cartridges for cesium-137 decontamination are currently being re-evaluated. Based on these preliminary findings we conclude that incorporating monosodium titanate and crystalline silicotitanate sorbents into membranes represent a promising method for the semicontinuous removal of radioisotopes of strontium and cesium from nuclear waste solutions.

Oji, L.; Martin, K.; Hobbs, D.

2012-01-03T23:59:59.000Z

36

CX-009101: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Monosodium Titanate (MST) Rheology CX(s) Applied: B3.6 Date: 08/30/2012 Location(s): South Carolina Offices(s): Savannah River Operations Office

37

Physics Topics - MST - UW Plasma Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Physics Topics UW Madison Madison Symmetric Torus Physics Topics MST HomeGraduate Student InformationLinksTourControl and Auxiliary SystemsPhysics TopicsDeviceResearch MissionMST...

38

Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

diffusion in Lead Zirconate Titanate and Barium Titanate. Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate. Abstract: Hydrogen is a potential clean-burning,...

39

Materials Science & Technology, MST: Los Alamos National Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

e-News Experimental Physical Sciences Vistas MaRIE: Matter-Radiation Interactions in Extremes MST Division Home CONTACTS MST Division Leader David F. Teter Bio MST Deputy Division...

40

LANL: Mechanical testing and modeling in MST  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

etc.). As the effects of processing are to critical to accurate prediction of its mechanical behavior, MST hosts a range of metallographic and characterization tools. Specific...

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Los Alamos Lab: MST: Materials Research Highlights  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Materials Research Highlights Materials Research Highlights Advances in fuel cells (pdf) R. Borup (MPA-11) Innovative materials physics and applications (pdf) Metallic nanolayered composites exhibit ultra-high strength and ductility (pdf) N.A. Mara (MST-6); D. Bhattacharyya (MPA-CINT); P. Dickerson (MST-6); J.K. Baldwin (MPA-CINT); R.G. Hoagland (MST-8); A. Misra (MPA-CINT) Frontiers in thermoacoustic refrigeration and mixture separation (pdf) S. Backhaus (MPA-10); D. Geller (AET-3); B. Ward (AET-6); G. Swift (MPA-10) Submicron resolution ferromagnetic resonance microscopy using scanned probe MRFM (pdf) E. Nazaretski and R. Movshovich (MPA-10) Nanowire technologies for radiation detection applications (pdf) G. Brown (MST-8); T. Picraux (MPA-CINT); M. Hoffbauer (C-ADI) Development of improved radiation detector materials (pdf)

42

Los Alamos Lab: MST: Focus on Facilities  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Focus on Facilities Focus on Facilities Mechanical testing and modeling in MST The mission of the Materials Science and Technology Division includes the development of constitutive deformation and failure models for the metals, polymers, ceramics, and composites of interest to Department of Energy, Department of Defense, and industrially-sponsored programs. More about mechanical testing and modeling in MST (pdf). Sensors and Electrochemical Devices Group The Sensors and Electrochemical Devices Group (MPA-11), within the Materials Physics and Applications Division at Los Alamos National Laboratory, conducts basic and applied research on electronic and ionic conducting materials, including the development of novel materials characterization approaches. More about the Sensors and Electrochemical Devices Group (pdf).

43

The TITAN reversed-field-pinch fusion reactor study  

SciTech Connect (OSTI)

This report discusses the following topics: overview of titan-2 design; titan-2 fusion-power-core engineering; titan-2 divertor engineering; titan-2 tritium systems; titan-2 safety design and radioactive-waste disposal; and titan-2 maintenance procedures.

Not Available

1990-01-01T23:59:59.000Z

44

Titan Recreation-Titan Bowl and Billiards Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Titan Bowl and Billiards Student Engagement Report FY 2009-2010 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational facilities, equipment and programs for a variety activities which contribute to individual

de Lijser, Peter

45

Titan Recreation-Titan Bowl and Billiards Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Titan Bowl and Billiards Student Engagement Report FY 2008-2009 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational facilities, equipment and programs for a variety activities which contribute to individual

de Lijser, Peter

46

Titan Recreation-Titan Bowl and Billiards Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Titan Bowl and Billiards Student Engagement Report FY 2010-2011 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational facilities, equipment and programs for a variety activities which contribute to individual

de Lijser, Peter

47

Titan Recreation-Titan Bowl and Billiards Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Titan Bowl and Billiards Student Engagement Report FY 2012-2013 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational facilities, equipment and programs for a variety of activities which contribute to individual

de Lijser, Peter

48

LANL: MST e-News April 2012  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MST e-News-Newsletter of the Materials Science and Technology Division MST e-News-Newsletter of the Materials Science and Technology Division April 2012 I N S I D E 2 From mark's Desk 3 In sItu monItorIng oF DynamIc phenomena DurIng solIDIFIcatIon 4 comparIson oF In sItu 3D ImageD Foams In compressIon wIth moDelIng 5 John carpenter to receIve tms young leaDer proFessIonal Development awarD scIentIFIc Journal publIshes specIal Issue In honor oF carlos tomé 6 three sprIng meetIngs on raDIatIon eFFects The world-record highest non- destructive magnetic field achieved last month at the National High Magnetic Field Laboratory-Pulsed Field Facility will be just one technical achievement featured during the 2012 Materials Capability Review.

49

Monosodium glutamate induced testicular lesions in rats (histological study)  

Science Journals Connector (OSTI)

AbstractObjective Monosodium glutamate (MSG) commonly consumed as a flavor enhancer and food additive in most soup, salad, and processed meat. The present study was designed to investigate the effect of MSG on testes of young male Wistar rats (n = 30). Materials and methods They were randomly assigned into One control group C (n = 10) received distilled water and two treatment groups A and B (n = 10) were given oral daily doses of MSG 30 and 60 g/kg body weight respectively for 2 months. Results The body weight of rats was significantly increased and mainly histological alterations which included of hyaline material in the lumina of the seminiferous tubules and interstitial tissues and exfoliation of spermatocytes and spermatids in treated group. Many cells of the different types of spermatogenesis appeared necrotic with pyknotic nuclei. Dilated congested blood vessels and vacuolar degeneration were also been observed in the cells of seminiferous tubules in the treated group B. Conclusions MSG may have some deleterious effects on the testes of Wistar rats and by extension may contribute to the causes of male infertility. Thus, it is important to reconsider the usage of MSG as a flavor enhancer.

Aisha D. Alalwani

2014-01-01T23:59:59.000Z

50

Filtration of Sludge and Sodium Nonatitanate Solutions  

SciTech Connect (OSTI)

The proposed facility designs for the ion exchange and solvent extraction flowsheets under development to treat high level waste at the Savannah River Site use crossflow filtration to remove entrained sludge and monosodium titanate (MST). Bench-scale and pilot-scale testing performed with simulated feed streams showed much lower filtration rates than desired for the process. This report documents an investigation of the impact on filtration of using Honeywell sodium nonatitanate (ST), rather than MST, for strontium and actinide removal.

Poirier, M.R.

2000-10-16T23:59:59.000Z

51

PHOTOCATALYTIC AND PHOTOELECTROCHEMICAL HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS  

E-Print Network [OSTI]

HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS F.HYDROGEN PRODUCTION ON STRONTIUM TITANATE SINGLE CRYSTALS

Wagner, F.T.

2012-01-01T23:59:59.000Z

52

Control and Auxiliary Systems - MST - UW Plasma Physics  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

difference in optimal phase may be due to the boron nitride antenna cover. FIGURE 3. Diagram of the upgrade to the poloidal electric field circuit used for PPCD on MST. The...

53

Port hole perturbations to the magnetic field in MST  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

095002 (17pp) doi:10.10880741-3335529095002 Port hole perturbations to the magnetic field in MST P J Fimognari 1 , A F Almagri 1 , J K Anderson 1 , D R Demers 2 , J S Sarff 1 ,...

54

Global confinement and discrete dynamo activity in the MST reversed...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

confinement and discrete dynamo activity in the MST reversed-field pinch* S. Hokin,+ A. Almagri, S. Assadi, J. Beckstead, G. Chartas, N. Cracker, M. Cudzinovic, D. Den Hat-tog, FL...

55

Propane on Titan  

E-Print Network [OSTI]

We present the first observations of propane (C$_3$H$_8$) on Titan that unambiguously resolve propane features from other numerous stratospheric emissions. This is accomplished using a $R=\\lambda/\\delta\\lambda\\approx10^5$ spectrometer (TEXES) to observe propane's $\

H. G. Roe; T. K. Greathouse; M. J. Richter; J. H. Lacy

2003-09-23T23:59:59.000Z

56

Monosodium Glutamate but not Linoleic Acid Differentially Activates Gustatory Neurons in the Rat Geniculate Ganglion  

E-Print Network [OSTI]

Monosodium Glutamate but not Linoleic Acid Differentially Activates Gustatory Neurons in the Rat) from gustatory neurons in the rat geniculate ganglion and none to free fatty acids. Accordingly, we recorded single-cell responses from geniculate ganglion gustatory neurons in anesthetized male rats to MSG

Hull, Elaine

57

Wasserstoff in Titan und Titanlegierungen  

Science Journals Connector (OSTI)

Wegen der sehr geringen Löslichkeit des Wasserstoffs bei Raumtemperatur als Einlagerungselement in Titan und seinen Legierungen führen Wasserstoffgehalte zu einer Hydridausscheidung oder zumindest zu einer Ansamm...

Dr. rer. nat. Ulrich Zwicker

1974-01-01T23:59:59.000Z

58

Crystalline titanate catalyst supports  

DOE Patents [OSTI]

A series of new crystalline titanates (CT) are shown to have considerable potential as catalyst supports. For Pd supported catalyst, the catalytic activity for pyrene hydrogenation was substantially different depending on the type of CT, and one was substantially more active than Pd on hydrous titanium oxide (HTO). For 1-hexene hydrogenation the activities of the new CTs were approximately the same as for the hydrous metal oxide supports.

Anthony, R.G.; Dosch, R.G.

1993-01-05T23:59:59.000Z

59

Molecular Science and Technology (MST) Program The Taiwan International Graduate Program (TIGP), Academia Sinica  

E-Print Network [OSTI]

Molecular Science and Technology (MST) Program The Taiwan International Graduate Program (TIGP Science and Technology (MST) graduate program: (1) Chemical dynamics and molecular spectroscopy, and transient species, and covers mechanisms involved in photodissociation, reactive scattering, energy transfer

60

Assessment of performing an MST strike in Tank 21H  

SciTech Connect (OSTI)

Previous Savannah River National Laboratory (SRNL) tank mixing studies performed for the Small Column Ion Exchange (SCIX) project have shown that 3 Submersible Mixer Pumps (SMPs) installed in Tank 41 are sufficient to support actinide removal by MST sorption as well as subsequent resuspension and removal of settled solids. Savannah River Remediation (SRR) is pursuing MST addition into Tank 21 as part of the Large Tank Strike (LTS) project. The preliminary scope for LTS involves the use of three standard slurry pumps (installed in N, SE, and SW risers) in a Type IV tank. Due to the differences in tank size, internal interferences, and pump design, a separate mixing evaluation is required to determine if the proposed configuration will allow for MST suspension and strontium and actinide sorption. The author performed the analysis by reviewing drawings for Tank 21 [W231023] and determining the required cleaning radius or zone of influence for the pumps. This requirement was compared with previous pilot-scale MST suspension data collected for SCIX that determined the cleaning radius, or zone of influence, as a function of pump operating parameters. The author also reviewed a previous Tank 50 mixing analysis that examined the ability of standard slurry pumps to suspend sludge particles. Based on a review of the pilot-scale SCIX mixing tests and Tank 50 pump operating experience, three standard slurry pumps should be able to suspend sludge and MST to effectively sorb strontium and actinides onto the MST. Using the SCIX data requires an assumption about the impact of cooling coils on slurry pump mixing. The basis for this assumption is described in this report. Using the Tank 50 operating experience shows three standard slurry pumps should be able to suspend solids if the shear strength of the settled solids is less than 160 Pa. Because Tank 21 does not contain cooling coils, the shear strength could be larger.

Poirier, Michael R.

2014-09-29T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer layers  

E-Print Network [OSTI]

Enhanced dielectric properties from barium strontium titanate films with strontium titanate buffer in their PE state. One of the leading material candidates for tunable materials is barium strontium titanate

Alpay, S. Pamir

62

Plasma Interactions in Titan's Ionosphere  

E-Print Network [OSTI]

.5 Schematic of the ionosphere of Titan with the magnetosphere of Saturn originally presented by Waite et al. [2004]. The diagram shows how the Saturnian magnetic field lines are bent around Titan due to the interaction with the ionosphere of Titan... radial field line was too low by several hundred K because heat from the upper atmosphere is readily conducted to lower altitudes where the cooling rate is large. No comparisons or temperatures were provided below 1200 km. The post-Cassini global MHD...

Richard, Matthew

2013-05-31T23:59:59.000Z

63

Polymers and Coatings:Materials Science & Technology, MST-7: Los Alamos  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Polymers and Coatings (MST-7) Polymers and Coatings (MST-7) Home About Us MST Related Links Research Highlights Focus on Facilities MST e-News Experimental Physical Sciences Vistas MaRIE: Matter-Radiation Interactions in Extremes MST Division Home CONTACTS Polymers and Coatings Group Leader, Ross E. Muenchausen Deputy Group Leader Dominic S. Peterson Point of Contact, Group Office 505-667-6887 foam voids Foam Void Image Using X-ray Micro Tomography About MST Polymers and Coatings (MST-7) Our mission is to provide World-class design, fabrication, assembly, characterization, and field support for the wide range of targets in support of national science programs that include energy, nuclear weapons, conventional defense, industrial collaborations, nonproliferation, and the environment; Outstanding polymer science and engineering solutions in support of

64

Los Alamos: MST-MTM: EML: Electron Microscopy Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electron Microscopy Laboratory, MST-6 Electron Microscopy Laboratory, MST-6 MST-6 Home Home In the MSL FEI Tecnai F30 Analytical TEM/STEM JEOL 6300FXV High Resolution SEM JEOL 3000F High Resolution Transmission Electron Microscope Philips XL30 F Scanning Electron Microscope & Orientation Imaging System Phillips CM30 Transmission Electron Microscope In the Sigma Building JEOL 840 EPMA with Wavelength Dispersive Spectroscopy FEI Strata DB235 FIB/SEM FEI XL30 Environmental Scanning Electron Microscope & Orientation Imaging System CONTACTS Bob Field 665.3938 Pat Dickerson 665.3036 Rob Dickerson 667.6337 Rod McCabe 606.1649 The Electron Microscopy Laboratory's Capabilities The Electron Microscopy Laboratory's Capabilities The Electron Microscopy Laboratory (EML) is part of MST-6, the Materials Technology - Metallurgy Group within the Materials Science and Technology Division at Los Alamos National Laboratory. It is a facility dedicated to the characterization of materials primarily through imaging, chemical, and crystallographic analyses of material microstructures with several electron and ion beam instruments. Accessory characterization techniques and equipment include energy dispersive x-ray analysis (EDS), wavelength dispersive x-ray analysis (WDS), electron backscatter diffraction (EBSD) and orientation imaging microscopy (OIM), and electron energy loss spectroscopy (EELS).

65

Proceedings of MST10, 13-20 May 2003, Piura, Peru 1 RETRIEVAL OF ATMOSPHERIC STATIC STABILITY FROM MST  

E-Print Network [OSTI]

MST RADAR RETURN SIGNAL POWER David A Hooper½ ¾ , Johan Arvelius½ and Kerstin Stebel½ ¿ ½ Swedish Institute of Space Physics, Box 812, 981 28, Kiruna, SWEDEN ¾ now at Rutherford Appleton Laboratory, Chilton phenomena including fronts, gravity waves and turbulence. Moreover, the variations of ¾ as a function

Kirkwood, Sheila

66

MST1 activation by curcumin mediates JNK activation, Foxo3a nuclear translocation and apoptosis in melanoma cells  

SciTech Connect (OSTI)

Highlights: •Curcumin activates MST1 in melanoma cells. •MST1 mediates curcumin-induced apoptosis of melanoma cells. •ROS production is involved in curcumin-induced MST1 activation. •MST1 mediates curcumin-induced JNK activation in melanoma cells. •MST1 mediates curcumin-induced Foxo3a nuclear translocation and Bim expression. -- Abstract: Different groups including ours have shown that curcumin induces melanoma cell apoptosis, here we focused the role of mammalian Sterile 20-like kinase 1 (MST1) in it. We observed that curcumin activated MST1-dependent apoptosis in cultured melanoma cells. MST1 silencing by RNA interference (RNAi) suppressed curcumin-induced cell apoptosis, while MST1 over-expressing increased curcumin sensitivity. Meanwhile, curcumin induced reactive oxygen species (ROS) production in melanoma cells, and the ROS scavenger, N-acetyl-cysteine (NAC), almost blocked MST1 activation to suggest that ROS might be required for MST1 activation by curcumin. c-Jun N-terminal protein kinase (JNK) activation by curcumin was dependent on MST1, since MST1 inhibition by RNAi or NAC largely inhibited curcumin-induced JNK activation. Further, curcumin induced Foxo3 nuclear translocation and Bim-1 (Foxo3 target gene) expression in melanoma cells, such an effect by curcumin was inhibited by MST1 RNAi. In conclusion, we suggested that MST1 activation by curcumin mediates JNK activation, Foxo3a nuclear translocation and apoptosis in melanoma cells.

Yu, Teng, E-mail: tengyu33@yahoo.com [Department of Dermatology, Shandong Ji-ning No. 1 People’s Hospital, Shandong Province 272011 (China)] [Department of Dermatology, Shandong Ji-ning No. 1 People’s Hospital, Shandong Province 272011 (China); Ji, Jiang [Department of Dermatology, The Second Hospital Affiliated of Soochow University, SuZhou, Jiangsu Province 215000 (China)] [Department of Dermatology, The Second Hospital Affiliated of Soochow University, SuZhou, Jiangsu Province 215000 (China); Guo, Yong-li [Department of Oncology, Shandong Ji-ning No. 1 People’s Hospital, Shandong Province 272011 (China)] [Department of Oncology, Shandong Ji-ning No. 1 People’s Hospital, Shandong Province 272011 (China)

2013-11-08T23:59:59.000Z

67

REVIEW OF ACTINIDE AND STRONTIUM LOADING DATA FOR MST AND MMST  

SciTech Connect (OSTI)

SRNL reviewed the relevant data from MST and mMST fissile loading studies to determine if further studies were required. With respect to MST, SRNL found that the published results adequately bound the expected conditions that Small Column Ion Exchange (SCIX) process will operate under. The lack of strontium data does not represent an issue as strontium is not relevant to criticality. There is no threat to criticality safety from the lack of strontium loading data. However, SRNL proposes a single test with MST to ensure that future SCIX operations are conservatively bounded and strontium maximum loading is understood. With respect to attempts to maximally load mMST, SRNL's knowledge on actinide and strontium loading is limited to uranium behavior. mMST has a very weak affinity for uranium, and even extended contact time at high uranium concentration shows minimal loading onto mMST. This leaves questions about the ability to load plutonium, neptunium and strontium. SRNL proposes to perform two tests with mMST to ensure that questions on plutonium, neptunium, and strontium sorption are answered, as well as ensuring that future mMST operations are conservatively bounded.

Peters, T.; Hobbs, D.; Fink, S.

2010-10-20T23:59:59.000Z

68

 

Broader source: Energy.gov (indexed) [DOE]

Sample mixtures of simulated sludge, monosodium titanate (MST), crystallized silicotitanate (CST, ground or unground), and simulated salt solution will Sample mixtures of simulated sludge, monosodium titanate (MST), crystallized silicotitanate (CST, ground or unground), and simulated salt solution will be prepared in varying ratios and treated to temperatures of up to 60°C for varying settling times. Samples will be brought to temperature through the use of water baths and ovens currently resident in 735-11A, Lab 134. Temperature treatment times will range from 1 week to 2 years. 8 samples will be irradiated (by Co-60 in SRNL Gamma Irradiation Facility) after mixing and prior to sample temperature treatment. Samples will be verified as clean prior to release for temperature treatment.After treatment, particle size distribution of the material will be analyzed; physical properties including bulk density

69

Is there life on ... Titan?  

Science Journals Connector (OSTI)

......seasonal modulations of solar insolation as a function...subsurface ocean, to the organic-rich surface environment...study of the likely organic chemical processes...demonstrated the production of tholins (complex...recognized that the organic chemistry in Titan's...using a diamond anvil cell. This extends the......

Lucy H Norman

2011-02-01T23:59:59.000Z

70

Finland HF and Esrange MST radar observations of polar mesosphere summer echoes  

E-Print Network [OSTI]

Finland HF and Esrange MST radar observations of polar mesosphere summer echoes Tadahiko Ogawa1 (200x) xx:1­8 Finland HF and Esrange MST radar observations of polar mesosphere summer echoes Tadahiko in Finland are presented. The echoes were detected at four frequencies of 9, 11, 13 and 15 MHz at slant

Kirkwood, Sheila

71

Titan Recreation-Intramural Sports Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Intramural Sports Student Engagement Report FY 2012-2013 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational fitness and overall wellness. Titan Recreation also provides opportunities for cooperative and competitive

de Lijser, Peter

72

Titan Recreation-Open Recreation Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Open Recreation Student Engagement Report FY 2010-2011 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational and overall wellness. Titan Recreation also provides opportunities for cooperative and competitive play

de Lijser, Peter

73

Titan Recreation-Open Recreation Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Open Recreation Student Engagement Report FY 2011-2012 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational and overall wellness. Titan Recreation also provides opportunities for cooperative and competitive play

de Lijser, Peter

74

Titan Recreation-Group Fitness Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Group Fitness Student Engagement Report FY 2010-2011 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational and overall wellness. Titan Recreation also provides opportunities for cooperative and competitive play

de Lijser, Peter

75

Titan Recreation-Intramural Sports Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Intramural Sports Student Engagement Report FY 2010-2011 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational and overall wellness. Titan Recreation also provides opportunities for cooperative and competitive play

de Lijser, Peter

76

Titan Recreation-Intramural Sports Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Intramural Sports Student Engagement Report FY 2011-2012 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational fitness and overall wellness. Titan Recreation also provides opportunities for cooperative and competitive

de Lijser, Peter

77

Titan Recreation-Open Recreation Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Open Recreation Student Engagement Report FY 2012-2013 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational and overall wellness. Titan Recreation also provides opportunities for cooperative and competitive play

de Lijser, Peter

78

Titan Recreation-Group Fitness Student Engagement Report  

E-Print Network [OSTI]

Titan Recreation-Group Fitness Student Engagement Report FY 2012-2013 Purpose Statement Titan Recreation strives to enhance participant experiences at CSUF through providing quality recreational fitness and overall wellness. Titan Recreation also provides opportunities for cooperative and competitive

de Lijser, Peter

79

Silico-titanates and their methods of making and using  

DOE Patents [OSTI]

Noval silico-titanates and the methods of making and using the said titanates are disclosed. Nb-doped silico-titanates are particularly useful for selectively removing cesuim from radioactive wastes.

Anthony, Rayford G. (College Station, TX); Dosch, Robert G. (late of Albuquerque, NM); Philip, C. V. (College Station, TX)

2002-01-01T23:59:59.000Z

80

Response of Strontium Titanate to Ion and Electron Irradiation...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Strontium Titanate to Ion and Electron Irradiation. Response of Strontium Titanate to Ion and Electron Irradiation. Abstract: Response of strontium titanate (SrTiO3) to ion and...

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Materials Science in Radiation and Dynamics Extremes:MST-8:LANL:Los Alamos  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in Radiation and Dynamics Extremes (MST-8) in Radiation and Dynamics Extremes (MST-8) Home About Us MST Related Links Research Highlights Focus on Facilities MST e-News Experimental Physical Sciences Vistas MaRIE: Matter-Radiation Interactions in Extremes MST Division Home CONTACTS Group Leader, Anna Zurek Deputy Group Leader Ellen Cerreta Point of Contact Group Office 505-665-4735 He bubbles foming at a Cu twist grain boundary He bubbles forming at a Cu twist grain boundary Evaluating and predicting structure/property relationships Predict structure/property relationships of structural (metals, alloys, actinides, binders, energetic, and specialty) materials from atomistic to continuum length scales; Use computational materials modeling to inform and complement the measurements listed above;

82

LANL: Facility Focus, MST-6 Materials Surface Science Investigations Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

07-018 Spring 2007 07-018 Spring 2007 T he MST-6 Materials Surface Science Investigations Laboratory is home to a one-of-a-kind integrated instrument for surface science and materials research, allowing scientists at Los Alamos National Laboratory the unique opportunity to perform coordinated research using ultra-high vacuum surface measurements, in situ reactions, and materials synthesis tools. Housed in the Materials Science Laboratory, the surface science instrument features an ultra-clean integrated system for surface analysis and in situ surface modification, thin film deposition, and surface gas reactions. This integrated system is used for analytical surface science; materials electronic

83

Flipping the switch on magnetism in strontium titanate  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Flipping the switch on magnetism in strontium titanate Flipping the switch on magnetism in strontium titanate Researchers have found a way to magnetize this material using light,...

84

Titan Platform | Open Energy Information  

Open Energy Info (EERE)

Platform Platform Jump to: navigation, search Name Titan Platform Facility Titan Platform Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Developer Offshore Wind Power Systems of Texas Location Gulf of Mexico TX Coordinates 27.912°, -96.833° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":27.912,"lon":-96.833,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

85

Dynamics of Titan's thermosphere H. Rishbetha, b,  

E-Print Network [OSTI]

; 5. vertical wind shears are limited by molecular vis- cosity, so that wind speeds are almost height; accepted 23 June 1999 Abstract We estimate the wind speeds in Titan's thermosphere by considering. Assuming a day± night temperature dierence of 20 K, we ®nd that Titan's thermospheric wind speed

Yelle, Roger V.

86

Thermodynamics of Nanoscale Calcium and Strontium Titanate Perovskites  

E-Print Network [OSTI]

Energetics of Magnesium, Strontium, and Barium DopedNanoscale Calcium and Strontium Titanate Perovskites Sulata

Sahu, Sulata Kumari

2013-01-01T23:59:59.000Z

87

Strontium Titanate DC Electric Field Switchable and Tunable Bulk Acoustic Wave Solidly Mounted Resonator  

E-Print Network [OSTI]

Strontium Titanate DC Electric Field Switchable and Tunable Bulk Acoustic Wave Solidly Mounted Abstract - A voltage switchable/tunable strontium titanate solidly mounted BAW resonator was implemented films, piezoelectric resonators. I. INTRODUCTION Strontium titanate (STO) and barium strontium titanate

York, Robert A.

88

Microsoft Word - Nano-sized Ion Exchange Particles.docx  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Reducing Ion Exchange Particles to Nano-Size Shows Big Potential Reducing Ion Exchange Particles to Nano-Size Shows Big Potential AIKEN, S.C. (January 30, 2012) - Sometimes bigger isn't better. Researchers at the U.S. Department of Energy's Savannah River National Laboratory have successfully shown that they can replace useful little particles of monosodium titanate (MST) with even tinier nano-sized particles, making them even more useful for a variety of applications. MST is an ion exchange material used to decontaminate radioactive and industrial wastewater solutions, and has been shown to be an effective way to deliver metals into living cells for some types of medical treatment. Typically, MST, and a modified form known as mMST developed by SRNL and Sandia National Laboratories, are in the form of fine powders, spherically-shaped particles about 1 to 10 microns in diameter

89

System studies of rf current drive for MST  

SciTech Connect (OSTI)

Two rf schemes are being studied on the MST reversed field pinch for their potential in current profile control experiments. MHD modeling has shown that a substantial externally-driven off axis parallel current can improve stability of the dominant core tearing modes. A radially localized axisymmetric population of fast electrons has been observed by SXR emission during LH injection (100kW at 800MHz), and is consistent with CQL3D modeling which predicts a small driven current. Computational work suggests that doubling the input power will statistically improve the LH-induced SXR signal to background ratio, and that about 2MW of injected power (an order of magnitude increase) will drive enough current for stabilization of tearing modes. Additionally, a 1 MW 5.5 GHz electron Bernstein wave (EBW) experiment is under construction, which utilizes a very simple and compact antenna compatible with the demands of the RFP. EBW allows access to electron cyclotron heating and current drive in the overdense plasma. Coupling of the external electromagnetic wave to the EBW has been demonstrated, and initial tests at {approx}100kW power have produced a small, localized xray flux consistent with rf heating and high diffusivity of fast electrons. Computational work is currently underway to answer the very important questions of how much power is required, and what level of electron diffusivity is tolerable, to generate a consequential amount of EBW current.

Anderson, J. K.; Burke, D. R.; Forest, C. B.; Goetz, J. A.; Hendries, E. R.; Seltzman, A. H.; Thomas, M. A. [Department of Physics, University of Wisconsin, Madison, WI (United States); Diem, S. [Oak Ridge National Laboratory, Oak Ridge TN (United States); Harvey, R. W. [CompX, Del Mar, CA (United States); Kaufman, M. C. [Department of Physics, University of Wisconsin, Madison, WI (United States); Oak Ridge National Laboratory, Oak Ridge, TN (United States)

2011-12-23T23:59:59.000Z

90

Morphology of fluvial networks on Titan: Evidence for structural control  

E-Print Network [OSTI]

Although Titan’s surface shows clear evidence of erosional modification, such as fluvial incision, evidence for tectonism has been less apparent. On Earth, fluvial networks with strongly preferred orientations are often ...

Burr, Devon M.

91

 

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

We will perform a monosodium titanate (MST) strike on a tank sample (Tank 21H - RCRA material). Samples will be removed for analysis. The MST We will perform a monosodium titanate (MST) strike on a tank sample (Tank 21H - RCRA material). Samples will be removed for analysis. The MST will then be filtered off and the filtrate used in an Extraction-Scrub-Strip (ESS) test. This involves contacting the tank samples with an organic solvent designed to selectively remove the cesium. Samples will be removed for analysis. Residual material will be sent to the High Activity Drain (HAD) (tank samples) or sent out through Solid Waste (organic) after being sorbed on drying agent. Actinide Removal Process and Extraction-Scrub-Strip testing for Macrobatch 4 Savannah River Site Aiken South Carolina TC-A-2010-00224, Rev.0 Jan 24, 2011 Andrew R. Grainger Digitally signed by Andrew R. Grainger DN: cn=Andrew R. Grainger, o=DOE-SR, ou=EQMD,

92

 

Broader source: Energy.gov (indexed) [DOE]

We will perform a monosodium titanate (MST) strike on a tank sample (Tank 21H - RCRA material). Samples will be removed for analysis. The MST We will perform a monosodium titanate (MST) strike on a tank sample (Tank 21H - RCRA material). Samples will be removed for analysis. The MST will then be filtered off and the filtrate used in an Extraction-Scrub-Strip (ESS) test. This involves contacting the tank samples with an organic solvent designed to selectively remove the cesium. Samples will be removed for analysis. Residual material will be sent to the High Activity Drain (HAD) (tank samples) or sent out through Solid Waste (organic) after being sorbed on drying agent. Actinide Removal Process and Extraction-Scrub-Strip testing for Macrobatch 4 Savannah River Site Aiken South Carolina TC-A-2010-00224, Rev.0 Jan 24, 2011 Andrew R. Grainger Digitally signed by Andrew R. Grainger DN: cn=Andrew R. Grainger, o=DOE-SR, ou=EQMD,

93

A modified LandauDevonshire thermodynamic potential for strontium titanate  

E-Print Network [OSTI]

A modified Landau­Devonshire thermodynamic potential for strontium titanate G. Sheng, Y. L. Li, J Landau­Devonshire thermodynamic potential for strontium titanate G. Sheng,1,a Y. L. Li,2 J. X. Zhang,1,b of the Landau energy coefficients and report a modified thermodynamic potential for bulk strontium titanate

Chen, Long-Qing

94

NORTHWESTERN UNIVERSITY Reconstructions on Strontium Titanate (110) Surfaces  

E-Print Network [OSTI]

NORTHWESTERN UNIVERSITY Reconstructions on Strontium Titanate (110) Surfaces at Various Annealing August 2011 #12;1 Abstract Reconstructions on Strontium Titanate (110) Surfaces at Various Annealing Conditions Alicia Loon Strontium titanate (SrTiO3) is a perovskite complex metal oxide used in many different

Shull, Kenneth R.

95

This is the title of the presentation on three lines if you need it  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Modified Monosodium Titanate Modified Monosodium Titanate Project #SR081301 - Improved Strontium and Actinide Separations David T. Hobbs Senior Advisory Scientist May 20, 2009 Office of Waste Processing Technical Exchange SRNL-STI-2009-00325 2 Presentation Outline Background Summary of Phase II findings FY08 Phase III findings FY09 Phase III findings Current/Future Activities Acknowledgements 3 Background MST is baseline material for Sr/actinide removal from SRS HLW solutions Actinide Removal Process (ARP) Salt Waste Processing Facility (SWPF) Adsorption kinetics and capacity can adversely impact pretreatment throughput and downstream operations Technical need to develop adsorbent with increased adsorption kinetics and capacities for Sr & Pu 4 Background Discovered improved sorption kinetics and capacity of

96

Titan Energy Systems Ltd | Open Energy Information  

Open Energy Info (EERE)

Titan Energy Systems Ltd Titan Energy Systems Ltd Jump to: navigation, search Name Titan Energy Systems Ltd Place Secunderabad, Andhra Pradesh, India Zip 500015 Sector Solar Product One of the leading Indian manufacturers and exporters of Solar Photovolatic modules. Coordinates 17.46071°, 78.49298° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":17.46071,"lon":78.49298,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

97

Titan interaction with the supersonic solar wind  

E-Print Network [OSTI]

After 9 years in the Saturn system, the Cassini spacecraft finally observed Titan in the supersonic solar wind. These unique observations reveal that Titan interaction with the solar wind is in many ways similar to un-magnetized planets Mars and Venus in spite of the differences in the properties of the solar plasma in the outer solar system. In particular, Cassini detected a collisionless, supercritical bow shock and a well-defined induced magnetosphere filled with mass-loaded interplanetary magnetic field lines, which drape around Titan ionosphere. Although the flyby altitude may not allow the detection of an ionopause, Cassini reports enhancements of plasma density compatible with plasma clouds or streamers in the flanks of its induced magnetosphere or due to an expansion of the induced magnetosphere. Because of the upstream conditions, these observations are also relevant for unmagnetized bodies in the outer solar system such as Pluto, where kinetic processes are expected to dominate.

Bertucci, C; Kurth, W S; Hospodarsky, G; Mitchell, D; Sergis, N; Edberg, N J T; Dougherty, M K

2014-01-01T23:59:59.000Z

98

Titan Electric Corporation | Open Energy Information  

Open Energy Info (EERE)

Electric Corporation Electric Corporation Jump to: navigation, search Logo: Titan Electric Corporation Name Titan Electric Corporation Address 58 Pulaski Street Place Peabody, Massachusetts Zip 01960 Sector Wind energy Product Design and installation of small-scale renewable energy systems Website http://www.titan-electric.com/ Coordinates 42.5423281°, -70.9221996° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.5423281,"lon":-70.9221996,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

99

An Exponential Improvement on the MST Heuristic for Minimum Energy Broadcasting  

E-Print Network [OSTI]

in energy saving. A naturally arising issue in ad hoc wireless networks is that of supporting communicationAn Exponential Improvement on the MST Heuristic for Minimum Energy Broadcasting in Ad Hoc Wireless Abstract. In this paper we present a new approximation algorithm for the Minimum Energy Broadcast Routing

Caragiannis, Ioannis

100

Synthesis of Single-Crystalline Perovskite Nanorods Composed of Barium Titanate and Strontium Titanate  

E-Print Network [OSTI]

Synthesis of Single-Crystalline Perovskite Nanorods Composed of Barium Titanate and Strontium (BaTi[OCH(CH3)2]6) and strontium titanium isopropoxide (SrTi[OCH(CH3)2]6), were prepared following

Heller, Eric

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Sputtering and heating of Titan's upper atmosphere  

Science Journals Connector (OSTI)

...Although, the plasma energy deposition...viable, but the plasma heating is inadequate...be true: another non-thermal process must be active...composition of the ambient plasma near Titan's orbit...used to test the atmospheric loss rate. Prior...

2009-01-01T23:59:59.000Z

102

U.S. Department of Energy Categorical Exclusion Determination Form  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Determining Distribution Coefficients by Surface-enhanced Raman Spectroscopy (SERS) Determining Distribution Coefficients by Surface-enhanced Raman Spectroscopy (SERS) Savannah River Site Aiken/Aiken/South Carolina The activity includes reducing gold(III) on Monosodium Titanate (MST) and coating MST on gold nanoparticles. The finished material is evaluated for its sorption capacity for 90Sr and 154Eu (gamma emitter). The loaded gold-MST composite is then evaluated for enhanced Raman scattering under wet conditions using a class 3B laser. B3.6 - Small-scale research and development, laboratory operations, and pilot projects Andrew R. Grainger Digitally signed by Andrew R. Grainger DN: cn=Andrew R. Grainger, o=DOE-SR, ou=EQMD, email=drew.grainger@srs.gov, c=US Date: 2013.05.15 15:49:15 -04'00' 05/14/2013 Submit by E-mail TC-A-2013-0059

103

U.S. Department of Energy Categorical Exclusion Determination Form  

Broader source: Energy.gov (indexed) [DOE]

Determining Distribution Coefficients by Surface-enhanced Raman Spectroscopy (SERS) Determining Distribution Coefficients by Surface-enhanced Raman Spectroscopy (SERS) Savannah River Site Aiken/Aiken/South Carolina The activity includes reducing gold(III) on Monosodium Titanate (MST) and coating MST on gold nanoparticles. The finished material is evaluated for its sorption capacity for 90Sr and 154Eu (gamma emitter). The loaded gold-MST composite is then evaluated for enhanced Raman scattering under wet conditions using a class 3B laser. B3.6 - Small-scale research and development, laboratory operations, and pilot projects Andrew R. Grainger Digitally signed by Andrew R. Grainger DN: cn=Andrew R. Grainger, o=DOE-SR, ou=EQMD, email=drew.grainger@srs.gov, c=US Date: 2013.05.15 15:49:15 -04'00' 05/14/2013 Submit by E-mail TC-A-2013-0059

104

Structural basis of the heterodimerization of the MST and RASSF SARAH domains in the Hippo signalling pathway  

Science Journals Connector (OSTI)

The heterodimeric structure of the MST1 and RASSF5 SARAH domains is presented. A comparison of homodimeric and heterodimeric interactions provides a structural basis for the preferential association of the SARAH heterodimer.

Hwang, E.

2014-06-29T23:59:59.000Z

105

A green synthesis of a layered titanate, potassium lithium titanate; lower temperature solid-state reaction and improved materials performance  

SciTech Connect (OSTI)

A layered titanate, potassium lithium titanate, with the size range from 0.1 to 30 µm was prepared to show the effects of the particle size on the materials performance. The potassium lithium titanate was prepared by solid-state reaction as reported previously, where the reaction temperature was varied. The reported temperature for the titanate preparation was higher than 800 °C, though 600 °C is good enough to obtain single-phase potassium lithium titanate. The lower temperature synthesis is cost effective and the product exhibit better performance as photocatalysts due to surface reactivity. - Graphical abstract: Finite particle of a layered titanate, potassium lithium titanate, was prepared by solid-state reaction at lower temperature to show modified materials performance. Display Omitted - Highlights: • Potassium lithium titanate was prepared by solid-state reaction. • Lower temperature reaction resulted in smaller sized particles of titanate. • 600 °C was good enough to obtain single phased potassium lithium titanate. • The product exhibited better performance as photocatalyst.

Ogawa, Makoto, E-mail: waseda.ogawa@gmail.com [Graduate School of Creative Science and Engineering, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo 169-8050 (Japan); Department of Earth Sciences, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo 169-8050 (Japan); Morita, Masashi, E-mail: m-masashi@y.akane.waseda.jp [Graduate School of Creative Science and Engineering, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo 169-8050 (Japan); Igarashi, Shota, E-mail: uxei_yoshi_yoshi@yahoo.co.jp [Graduate School of Creative Science and Engineering, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo 169-8050 (Japan); Sato, Soh, E-mail: rookie_so_sleepy@yahoo.co.jp [Graduate School of Creative Science and Engineering, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo 169-8050 (Japan)

2013-10-15T23:59:59.000Z

106

Tracking Phaselock Loop Characteristics with a VCO Using a Barium Strontium Titanate (BST)  

E-Print Network [OSTI]

Tracking Phaselock Loop Characteristics with a VCO Using a Barium Strontium Titanate (BST) Thin Strontium Titanate (BST) varactors utilized in a VCO demonstrate unique tuning characteristics compared

107

Very Stable Electron Field Emission From Strontium Titanate CoatedCarb...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Very Stable Electron Field Emission From Strontium Titanate CoatedCarbon Nanotube Matrices With Low Emission Thresholds. Very Stable Electron Field Emission From Strontium Titanate...

108

E-Print Network 3.0 - attrition-resistant zinc titanate Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

, M. Mendilloa a Center for Space... ; accepted 23 June 1999 Abstract We estimate the wind speeds in Titan's thermosphere by considering... , but in Titan's thermosphere they...

109

Photoluminescence dynamics in strontium titanate A. Rubano,1  

E-Print Network [OSTI]

Photoluminescence dynamics in strontium titanate A. Rubano,1 F. Ciccullo,1 D. Paparo,2 F. Miletto dynamics of electron-hole pairs of pure and n-doped strontium titanate (STO) bulk samples after an intense is attempted. PACS numbers: 78.55.-m, 71.35.Ee, 73.50.Gr, 78.47.+p I. INTRODUCTION Strontium titanate, SrTiO3

Marrucci, Lorenzo

110

Radiation Damage in Titanate Ceramics Used for Plutonium Immobilization  

SciTech Connect (OSTI)

Results from radiation damage experiments are discussed with respect to the immobilization of Pu declared excess to the weapons programs. The ceramics are titanate-based.

Strachan, Denis M.; Scheele, Randall D.; Kozelisky, Anne E.; Sell, Richard L.; Schaef, Herbert T.; O'Hara, Matthew J.; Brown, Christopher F.; Buchmiller, William C.

2002-05-01T23:59:59.000Z

111

Titan Energy Systems Enfinity JV | Open Energy Information  

Open Energy Info (EERE)

Place: Andhra Pradesh, India Sector: Solar Product: India-based joint venture to develop solar PV projects. References: Titan Energy Systems & Enfinity JV1 This article is a...

112

Titan propels GE wind turbine research into new territory | ornl...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Titan propels GE wind turbine research into new territory January 17, 2014 The amount of global electricity supplied by wind, the world's fastest growing energy source, is expected...

113

Electron temperature of Titan's sunlit ionosphere M. Galand,1  

E-Print Network [OSTI]

Electron temperature of Titan's sunlit ionosphere M. Galand,1 R. V. Yelle,2 A. J. Coates,3 H spacecraft and assess the ionization and electron heating sources in Titan's sunlit ionosphere. We compare CAPS electron spectra with spectra produced by an electron transport model based on the INMS neutral

Yelle, Roger V.

114

34 McCormick / spring Lead mechanical engineer, Titan Aerospace  

E-Print Network [OSTI]

and solar panels. Anyway, I learned about the job through a solar car listserv. I contacted him and becameCormick: What does Titan Aerospace do? Cornew: Titan Aerospace is a startup that designs and builds solar-powered unmanned aerial vehicles, or drones. Our long-term goal is to build solar-powered UAVs that could stay

Chen, Wei

115

Titan's Inventory of Organic Surface Materials Ralph D. Lorenz1,*  

E-Print Network [OSTI]

1 Titan's Inventory of Organic Surface Materials Ralph D. Lorenz1,* , Karl L. Mitchell2 , Randolph observations now permit an initial assessment of the inventory of two classes, presumed to be organic, of Titan observed, of which dozens are each estimated to contain more hydrocarbon liquid than the entire known oil

Paris-Sud XI, Université de

116

Multiferroic Domain Dynamics in Strained Strontium Titanate A. Vasudevarao,1  

E-Print Network [OSTI]

Multiferroic Domain Dynamics in Strained Strontium Titanate A. Vasudevarao,1 A. Kumar,1 L. Tian,1 J (Received 19 June 2006; published 21 December 2006) Multiferroicity can be induced in strontium titanate to the ferroelectric mm2 phase, followed by a transition to a ferroelastic-ferroelectric mm2 phase in a strontium

Gopalan, Venkatraman

117

Microsoft Word - PS-MST-LATHE-2012-05-22.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

61.doc 1 (03/2012) 61.doc 1 (03/2012) BROOKHAVEN NATIONAL LABORATORY MACHINE SHOP SAFE WORK PRACTICES EVALUATION FORM Dept./Div.: PS______ Machine: PhoSci MSJPM Lathe (PS-MST-LATHE) Machine Shop Supervisor's Name(s): Employee Name: _________________________________ Life Number: Competencies Date Completed Evaluated By (Initials) Comments 1. State BNL policy for use of eye protection in machine shops. 2. Identify main disconnect for tool and explain the requirement for access to it. 3. Identify all machine controls and explain their functions. 4. Identify all machine guards and describe their functions. 5. Explain the process when defects are found. 6. Describe the proper methods for supporting oversized

118

Microsoft Word - PS-MST-BELTSANDER-2012-05-21.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

21.doc 1 (03/2012) 21.doc 1 (03/2012) BROOKHAVEN NATIONAL LABORATORY MACHINE SHOP SAFE WORK PRACTICES EVALUATION FORM Dept./Div.: PS______ Machine: PhoSci MSJPM Belt/Disc Sander (PS-MST-BELTSANDER) Machine Shop Supervisor's Name(s): Employee Name: _________________________________ Life Number: Competencies Date Completed Evaluated By (Initials) Comments 1. State BNL policy for use of eye protection in machine shops. 2. Identify main disconnect for tool, and explain the requirement for access to it. 3. Identify all controls and describe their functions. 4. Identify all machine guards and describe their functions. 5. State the proper clearance between the belt/disc and the tool rest.

119

Microsoft Word - PS-MST-DRILL-PRESS-2012-05-21.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

51.doc 1 (03/2012) 51.doc 1 (03/2012) BROOKHAVEN NATIONAL LABORATORY MACHINE SHOP SAFE WORK PRACTICES EVALUATION FORM Dept./Div.: PS______ Machine: PhoSci MSJPM Drill Press (PS-MST-DRILLPRESS) Machine Shop Supervisor's Name(s): Employee Name: _________________________________ Life Number: Competencies Date Completed Evaluated By (Initials) Comments 1. State BNL policy for use of eye protection in machine shops. 2. Identify main disconnect for tool and explain the requirement for access to it. 3. Identify all controls and describe their functions. 4. Identify all machine guards and describe their functions. 5. Explain the process when defects are found.

120

Microsoft Word - PS-MST-MILLING-2012-05-22.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

71.doc 1 (03/2012) 71.doc 1 (03/2012) BROOKHAVEN NATIONAL LABORATORY MACHINE SHOP SAFE WORK PRACTICES EVALUATION FORM Dept./Div.: PS______ Machine: PhoSci MSJPM Milling Machine (PS-MST-MILLING) Machine Shop Supervisor's Name(s): Employee Name: _________________________________ Life Number: Competencies Date Completed Evaluated By (Initials) Comments 1. State BNL policy for use of eye protection in machine shops. 2. Identify main disconnect for tool and explain the requirement for access to it. 3. Identify all controls and describe their functions. 4. Identify all machine guards and describe their functions. 5. Explain the process when defects are found. 6. Demonstrate safe work practices while performing

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Titan I Wind Farm | Open Energy Information  

Open Energy Info (EERE)

I Wind Farm I Wind Farm Jump to: navigation, search Name Titan I Wind Farm Facility Titan I Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner BP Alternative Energy/Clipper Developer BP Alternative Energy/Clipper Energy Purchaser Northwestern Energy Location South of Ree Heights SD Coordinates 44.480053°, -99.209476° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.480053,"lon":-99.209476,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

122

Lightning activity on Titan: can Cassini detect it?  

Science Journals Connector (OSTI)

Although no lightning discharges were observed during the Voyager 1 flyby of Titan, this lack of evidence does not rule out the existence of lightning phenomena which could be detected by the Radio and Plasma Wave Science (RPWS) instrument on board of the Cassini spacecraft. The existence of lightning or other electromagnetic discharges has been suggested to explain the formation of hydrocarbons and nitriles in the context of Titan's complex organic chemistry. Although thunderclouds may be a rare phenomenon in Titan's lower atmosphere, recent investigations show that such clouds may cause temporary maximum electrical fields in the order of 2×106 V m?1 sufficient to initiate 20 km long Earth-like cloud-to-ground type 2 lightning strokes. Since such clouds are likely to be correlated with strong convection near the subsolar point, we expect possible lightning flashes to occur only on the dayside. Recent telescopic infrared observations have detected localized, high, short-lived clouds on Titan. We have calculated the flash characteristics, frequency spectrum, maximum spectral energy and the electromagnetic energy radiated into the troposphere by using a wave guide model of lightning currents for Titan's lightning strokes. Our study indicates that cloud-to-ground lightning strokes on Titan would be comparable with so-called type 2 lightning strokes on Earth. Their total radiated energy to the far field could be about 130 kJ and their maximum energy at a frequency of about 4 kHz. In order to estimate the capability of the Cassini/RPWS instrument to detect lightning discharges during several close Titan flybys, we distinguish the atmospheric regions, where the propagation of electromagnetic waves is unperturbed or where it is impossible. We found that the Cassini/RPWS instrument should be able to detect electromagnetic signals generated from a representative cloud-to-ground lightning stroke in Titan's lower atmosphere in a frequency range above 500 kHz or 1 \\{MHz\\} up to 200 Titan radii away. We suggest that for the search of lightning signals the RPWS high-frequency receiver HF2 with its H2-1E or H2-1E/F receiver modes and low integration times ?t of 10 or 20 ms should be chosen. Since the lightning flash rate might be low (<1 flash per hour) it is important to have long observation times. An analysis of all Cassini trajectories of Titan close flybys shows that the spacecraft would have the opportunity to observe Titan's dayside within 100 Titan radii during nearly all flybys. This time should be long enough, even if the lightning flash rate is low.

H. Lammer; T. Tokano; G. Fischer; W. Stumptner; G.J. Molina-Cuberos; K. Schwingenschuh; H.O. Rucker

2001-01-01T23:59:59.000Z

123

Cloud activity on Titan between July 2004 and December 2007: S. Rodriguez et al. Global circulation as the main source of cloud activity on Titan2  

E-Print Network [OSTI]

that Titan's equator-to-pole thermal contrast is34 overestimated in the models and that Titan's atmosphere Mapping Spectrometer18 (VIMS) onboard Cassini provides a unique oppor-38 tunity to regularly in VIMS images (cf. Fig. 1) and applied it to 10,000 images of Titan. These41 images encompass several

124

MHK Technologies/Titan Platform | Open Energy Information  

Open Energy Info (EERE)

Titan Platform Titan Platform < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Titan Platform.jpg Technology Profile Primary Organization Grays Harbor Ocean Energy Company LLC Project(s) where this technology is utilized *MHK Projects/Grays Harbor Ocean Energy and Coastal Protection Technology Resource Click here Wave Technology Type Click here Point Absorber Technology Readiness Level Click here TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering Technology Description The Titan platform eliminates the need for specialized offshore construction and crane ships The platform along with the wind turbine and wave energy converters are assembled on shore with the platform legs raised The platform and devices are towed to the site and the legs are then lowered to the seafloor and the platform is jacked up on the legs

125

What Cassini-Huygens has revealed about Titan  

Science Journals Connector (OSTI)

......gave information on the atmospheric properties, but also...with the presence of water ice on Titan's surface...Radioisotope Thermoelectric Generators (RTGs). The instruments...tiger-stripes and the water atmosphere generated...photochemistry and atmospheric circulation. The interaction......

Athena Coustenis

2007-04-01T23:59:59.000Z

126

Direct printing of lead zirconate titanate thin films  

E-Print Network [OSTI]

Thus far, use of lead zirconate titanate (PZT) in MEMS has been limited due to the lack of process compatibility with existing MEMS manufacturing techniques. Direct printing of thin films eliminates the need for photolithographic ...

Bathurst, Stephen, 1980-

2008-01-01T23:59:59.000Z

127

Nano- sized strontium titanate metal oxide semiconductor oxygen gas sensors.  

E-Print Network [OSTI]

??The project focuses on strontium titanate (SrTiO3> material, a very important material for oxygen sensors. The advantages of the material are low cost and stability… (more)

Hu, Ying.

2008-01-01T23:59:59.000Z

128

MST 1: Proceedings of a conference on the integration of mathematics, science and technology in precollege education  

SciTech Connect (OSTI)

Example MST activities examined here show: (1) an inquiry-driven learning stimulus, involving (2) the synthesis of concepts in math, science and technology, through (3) the application of the scientific method and engineering problem solving/test protocols, and provoking (4) a stimulus for further exploration. A semi-exploratory learning approach offered background aimed at enabling participants to take meaningful courses of investigation; this approach must be balanced by maintaining contact with framework content standards. On the whole, the philosophy underlying the MST learning approach--as envisioned in the draft NYS Framework, and embodied in the example activities--is strongly endorsed. This endorsement is broad-based: those represented include teachers of mathematics, science, and technology, and school district administrators--in roughly equal numbers. Discussion centers not on whether the MST approach should be pursued, but on what is involved in doing it. Teams of conference participants were given time to plan or extend MST initiatives in their own districts. Outlines of the initiatives proposed by ten of the teams are disseminated herein.

Swyler, K. [ed.

1995-11-01T23:59:59.000Z

129

CX-005110: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

110: Categorical Exclusion Determination 110: Categorical Exclusion Determination CX-005110: Categorical Exclusion Determination Actinide Removal Process and Extraction-Scrub-Strip Testing for Macrobatch 4 CX(s) Applied: B3.6 Date: 01/24/2011 Location(s): Aiken, South Carolina Office(s): Savannah River Operations Office We will perform a monosodium titanate (MST) strike on a tank sample (Tank 21H). Samples will be removed for analysis. The MST will then be filtered off and the filtrate used in an Extraction-Scrub-Strip (ESS) test. This involves contacting the tank samples with an organic solvent designed to selectively remove the cesium. Samples will be removed for analysis. Residual material will be sent to the High Activity Drain (HAD) (tank samples) or sent out through Solid Waste (organic) after being sorbed on

130

Far plasma wake of Titan from the RPWS observations: A case study  

E-Print Network [OSTI]

onboard the Cassini spacecraft during one Titan flyby on December 26, 2005. The Langmuir Probe the wake of Titan on December 26, 2005 (flyby T9), and gave us the possibility to investigate the structure

Gurnett, Donald A.

131

Strain engineered barium strontium titanate for tunable thin film resonators H. Khassaf,1  

E-Print Network [OSTI]

Strain engineered barium strontium titanate for tunable thin film resonators H. Khassaf,1 N of epitaxial (001) barium strontium titanate (BST) films are computed as functions of composition, misfit

Alpay, S. Pamir

132

Pyroelectric properties of barium strontium titanate films: Effect of thermal M. W. Cole,2  

E-Print Network [OSTI]

Pyroelectric properties of barium strontium titanate films: Effect of thermal stresses J. Zhang,1 M pyroelectric properties of 001 -textured polycrystalline barium strontium titanate BaxSr1-xTiO3, BST films

Alpay, S. Pamir

133

Dielectric tunability of ,,110... oriented barium strontium titanate epitaxial films on ,,100... orthorhombic substrates  

E-Print Network [OSTI]

Dielectric tunability of ,,110... oriented barium strontium titanate epitaxial films on ,,100 materials such as barium strontium titanate Ba1-xSrxTiO3 BST have emerged as leading candidates

Alpay, S. Pamir

134

Dielectric and pyroelectric properties of barium strontium titanate films on orthorhombic substrates with ,,110.../ /,,100... epitaxy  

E-Print Network [OSTI]

Dielectric and pyroelectric properties of barium strontium titanate films on orthorhombic: 10.1063/1.2729474 I. INTRODUCTION Thin films of barium strontium titanate BaxSr1-xTiO3, BST

Alpay, S. Pamir

135

Untangling the Chemical Evolution of Titan's Atmosphere and Surface -- From Homogeneous to Heterogeneous Chemistry  

E-Print Network [OSTI]

CH 3 CCH), propane (C 3 H 8 ), diacetylene (C 4 H 2 ), andorganic solids (ethane, propane) with ionizing radiation insolid ices of ethane and propane – two of Titan’s abundant

Kaiser, Ralf I.

2010-01-01T23:59:59.000Z

136

Electrocaloric properties of epitaxial strontium titanate films I. B. Misirlioglu,2  

E-Print Network [OSTI]

Electrocaloric properties of epitaxial strontium titanate films J. Zhang,1 I. B. Misirlioglu,2 S. P; published online 1 June 2012) The electrocaloric (EC) response of strontium titanate thin films is computed

Alpay, S. Pamir

137

The equilibrium crystal shape of strontium titanate and its relationship to the grain boundary plane distribution  

E-Print Network [OSTI]

1 The equilibrium crystal shape of strontium titanate and its relationship to the grain crystal shape (ECS) of a model system, strontium titanate, is compared with the grain boundary plane distribution (GBPD) as a function of temperature. Strontium titanate has a pronounced surface energy anisotropy

Rohrer, Gregory S.

138

The effect of stress on the dielectric properties of barium strontium titanate thin films  

E-Print Network [OSTI]

The effect of stress on the dielectric properties of barium strontium titanate thin films T. M Barium strontium titanate thin films are being developed as capacitors in dynamic random access memories to their large permittivities, barium strontium titan- ate BST bulk ceramics have long been used to make high

Suo, Zhigang

139

Dielectric nonlinearity and stochastic effects in strontium titanate Alp T. Findikoglua)  

E-Print Network [OSTI]

Dielectric nonlinearity and stochastic effects in strontium titanate Alp T. Findikoglua) Materials-film superconducting YBa2Cu3O7 electrodes. The substrate is strontium titanate, whose nonlinear dielectric properties American Institute of Physics. DOI: 10.1063/1.1477278 Nonlinear dielectrics such as strontium titanate STO

Lythe, Grant

140

Impact of thermal strain on the dielectric constant of sputtered barium strontium titanate thin films  

E-Print Network [OSTI]

Impact of thermal strain on the dielectric constant of sputtered barium strontium titanate thin, California 93106 Received 6 November 2001; accepted for publication 10 January 2002 Barium strontium titanate: magnesium oxide, strontium titanate, sapphire, silicon, and vycor glass. These substrates were chosen

York, Robert A.

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

High tunability barium strontium titanate thin films for rf circuit applications  

E-Print Network [OSTI]

High tunability barium strontium titanate thin films for rf circuit applications N. K. Pervez,a) P) Large variations in the permittivity of rf magnetron sputtered thin-film barium strontium titanate have/cm. © 2004 American Institute of Physics. [DOI: 10.1063/1.1818724] Barium strontium titanate (BST) is a solid

York, Robert A.

142

Microwave dielectric properties of graded barium strontium titanate films M. W. Cole,1,a  

E-Print Network [OSTI]

Microwave dielectric properties of graded barium strontium titanate films M. W. Cole,1,a C. V strontium titanate BaxSr1-xTiO3 or BST multilayers 5 mol % MgO doped and undoped were prepared via metallo, delay lines, filters, and phase shifters for steerable antennas.1­3 Barium strontium titanate BaxSr1-x

Alpay, S. Pamir

143

The equilibrium crystal shape of strontium titanate and its relationship to the grain boundary plane distribution  

E-Print Network [OSTI]

The equilibrium crystal shape of strontium titanate and its relationship to the grain boundary system, strontium titanate, is compared with the grain boundary plane dis- tribution (GBPD) as a function of temperature. Strontium titanate has a pronounced surface energy anisotropy and a grain growth anomaly

Rohrer, Gregory S.

144

Dielectric tunability of graded barium strontium titanate multilayers: Effect of thermal strains  

E-Print Network [OSTI]

Dielectric tunability of graded barium strontium titanate multilayers: Effect of thermal strains M TEC of a multilayered barium strontium titanate Ba1-ySryTiO3 BST ferroelectric heterostructure such as barium strontium titanate Ba1-ySryTiO3 BST have emerged as leading candidates for such applications due

Alpay, S. Pamir

145

Discrete Barium Strontium Titanate (BST) Thin-Film Interdigital Varactors on Alumina: Design, Fabrication, Characterization, and  

E-Print Network [OSTI]

Discrete Barium Strontium Titanate (BST) Thin-Film Interdigital Varactors on Alumina: Design, Raleigh, NC-27695-7914, USA. Email:jayeshnath@ieee.org Abstract -- Discrete Barium Strontium Titanate (BST, capacitors, BST, ferroelectric, thin-film, barium strontium titanate, bandpass filter, IP3, ACPR, temperature

146

Optimization of the tunability of barium strontium titanate films via epitaxial stresses  

E-Print Network [OSTI]

Optimization of the tunability of barium strontium titanate films via epitaxial stresses Z.-G. Ban The tunability of epitaxial barium strontium titanate films is analyzed theoretically using a phenomenological.1063/1.1524310 I. INTRODUCTION Thin films of barium strontium titanate (BaxSr1 xTiO3, BST have long been recognized

Alpay, S. Pamir

147

Determination of the Impact of Glycolate on ARP and MCU Operations  

SciTech Connect (OSTI)

Savannah River Remediation (SRR) is evaluating an alternate flowsheet for the Defense Waste Processing Facility (DWPF) using glycolic acid as a reductant. An important aspect of the development of the glycolic acid flowsheet is determining if glycolate has any detrimental downstream impacts. Testing was performed to determine if there is any impact to the strontium and actinide sorption by monosodium titanate (MST) and modified monosodium titanate (mMST) or if there is an impact to the cesium removal, phase separation, or coalescer performance at the Modular Caustic-Side Solvent Extraction Processing Unit (MCU). Sorption testing was performed using both MST and modified MST (mMST) in the presence of 5000 and 10,000 ppm (mass basis) glycolate. 10,000 ppm is the estimated bounding concentration expected in the DWPF recycle stream based on DWPF melter flammable gas model results. The presence of glycolate was found to slow the removal of Sr and Pu by MST, while increasing the removal rate of Np. Results indicate that the impact is a kinetic effect, and the overall capacity of the material is not affected. There was no measurable effect on U removal at either glycolate concentration. The slower removal rates for Sr and Pu at 5000 and 10,000 ppm glycolate could result in lower DF values for these sorbates in ARP based on the current (12 hours) and proposed (8 hours) contact times. For the highest glycolate concentration used in this study, the percentage of Sr removed at 6 hours of contact decreased by 1% and the percentage of Pu removed decreased by nearly 7%. The impact may prove insignificant if the concentration of glycolate that is returned to the tank farm is well below the concentrations tested in this study. The presence of glycolate also decreased the removal rates for all three sorbates (Sr, Pu, and Np) by mMST. Similar to MST, the results for mMST indicate that the impact is a kinetic effect, and the overall capacity of the material is not affected. The presence of glycolate did not change the lack of affinity of mMST for U. Pre-contacting the MST or mMST with glycolate did not have a significant effect on the performance of the materials when compared to tests having the same concentration of glycolate present in the simulant. These findings suggest that the glycolate is likely influencing removal by sorbate complexation and not by depositing onto or forming a film on the surface of the MST solids. Since the DF values are salt batch dependent, it is not possible to a priori quantify the impacts of glycolate on future processing campaigns. However, we recommend that the impacts of glycolate be evaluated during each salt batch qualification when a final processing concentration is defined, and recommendations can then be made on how to mitigate negative impacts, if needed. Impacts to the performance of the MST or mMST could be mitigated by increasing contact time or increasing sorbent concentrations. Testing was performed to determine if there is an impact to the cesium removal at Modular Caustic-Side Solvent Extraction Processing Unit (MCU). An Extraction-Scrub-Strip (ESS) test routine was used to simulate cesium removal at the MCU. For this, SRNL performed three ESS tests, using the same basic aqueous waste simulant and solvent. For one test, SRNL added 5000 ppm (mass basis) of glycolate and added 10,000 ppm of glycolate to a second test. A control test contained no glycolate. The results of all three tests were virtually identical for all the extraction, scrub and strip tests.

Taylor-Pashow, K. M.L.; Peters, T. B.; Fondeur, F. F.; Shehee, T. C.; Washington, A. L.

2012-12-13T23:59:59.000Z

148

Titan's Prolific Propane: The Cassini CIRS Perspective  

E-Print Network [OSTI]

In this paper we select large spectral averages of data from the Cassini Composite Infrared Spectrometer (CIRS) obtained in limb-viewing mode at low latitudes (30S--30N), greatly increasing the path length and hence signal-to-noise ratio for optically thin trace species such as propane. By modeling and subtracting the emissions of other gas species, we demonstrate that at least six infrared bands of propane are detected by CIRS, including two not previously identified in Titan spectra. Using a new line list for the range 1300-1400cm -1, along with an existing GEISA list, we retrieve propane abundances from two bands at 748 and 1376 cm-1. At 748 cm-1 we retrieve 4.2 +/- 0.5 x 10(-7) (1-sigma error) at 2 mbar, in good agreement with previous studies, although lack of hotbands in the present spectral atlas remains a problem. We also determine 5.7 +/- 0.8 x 10(-7) at 2 mbar from the 1376 cm-1 band - a value that is probably affected by systematic errors including continuum gradients due to haze and also an imperf...

Nixon, C A; Flaud, J -M; Bezard, B; Teanby, N A; Irwin, P G J; Ansty, T M; Coustenis, A; Vinatier, S; Flasar, F M; 10.1016/j.pss.2009.06.021

2009-01-01T23:59:59.000Z

149

Titan's New Build Attracts Magnetic Systems Research Impossible Until Now  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Titan's New Build Attracts Magnetic Systems Research Impossible Until Now Titan's New Build Attracts Magnetic Systems Research Impossible Until Now November 01, 2013 Researchers using Titan are studying the behavior of magnetic systems by simulating nickel atoms as they reach their Curie temperature-the threshold between order (right) and disorder (left) when atoms spin into random magnetic directions of fluctuating magnetic strengths, causing the material to lose its magnetism. As simple as magnets seemed during school science lessons (opposites attract, likes repel), improving the performance of magnetic materials and creating new alloys is so complicated Markus Eisenbach, computational scientist at Oak Ridge National Laboratory, has been waiting for a computer that can perform as many as twenty quadrillion calculations per second to

150

Northern Virginia Technology Council Titans' Breakfast | Department of  

Broader source: Energy.gov (indexed) [DOE]

Northern Virginia Technology Council Titans' Breakfast Northern Virginia Technology Council Titans' Breakfast Northern Virginia Technology Council Titans' Breakfast September 25, 2008 - 3:43pm Addthis Remarks as Prepared for Secretary Bodman Thank you, Gary. It is good to be here with all of you this morning to talk about America's energy future. You certainly don't need reminding that our world is confronting a rapidly growing demand for energy, rising prices, and an urgent need to produce and use energy more cleanly and efficiently in ways that do not harm our shared environment - or our security. And these demand pressures, though already acute, will only increase with time. The International Energy Agency estimates that the world's primary energy needs will grow by more than 50 percent by 2030. Our challenge, as the President has made clear, is to develop and deploy

151

Thermodynamic restrictions on mechanosynthesis of strontium titanate  

SciTech Connect (OSTI)

Chemical potential phase stability diagrams were calculated from relevant thermodynamic properties and used to predict the thermodynamic driving force under prospective conditions of room temperature mechanosynthesis. One analysed the dependence of chemical potential diagrams on temperature and partial pressure of evolving gases such as oxygen or carbon dioxide, as expected on using strontium peroxide or strontium carbonate as precursor reactants for the alkali earth component. Thermodynamic calculations were also obtained for changes in titania precursor reactants, including thermodynamic predictions for reactivity of strontium carbonate with amorphous titania. Experimental evidence showed that strontium titanate can be obtained by mechanosynthesis of strontium carbonate+anatase mixtures, due to previous amorphization under high energy milling. Ability to perform mechanosynthesis with less energetic milling depends on the suitable choice of alternative precursor reactants, which meet the thermodynamic requirements without previous amorphization; this was demonstrated by mechanosynthesis from anatase+strontium peroxide mixtures. - Graphical abstract: X-Ray diffractograms of the starting TiO{sub 2} (anatase)+SrCO{sub 3} mixture and after mechanical activation at 650 rpm, for 1, 2, and 7 h. Different symbols are used to identify reflections ascribed to anatase (diamonds), SrCO{sub 3} (squares) and SrTiO{sub 3} (triangles). Highlights: Black-Right-Pointing-Pointer Prediction of thermodynamic driving force for room temperature mechanosynthesis. Black-Right-Pointing-Pointer Dependence of chemical potential diagrams on temperature and partial pressure. Black-Right-Pointing-Pointer Thermodynamic calculations for changes in titania precursor. Black-Right-Pointing-Pointer Experimental support for thermodynamic predictions.

Monteiro, J.F. [Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro (Portugal); Ferreira, A.A.L. [Instituto Politecnico de Viana do Castelo, 4900-347 Viana do Castelo (Portugal); Antunes, I. [Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro (Portugal); Fagg, D.P., E-mail: duncan@ua.pt [Centro de Tecnologia Mecanica e Automacao, Departamento de Engenharia Mecanica, Universidade de Aveiro, 3810-193 Aveiro (Portugal); Frade, J.R. [Department of Ceramics and Glass Engineering, CICECO, University of Aveiro, 3810-193 Aveiro (Portugal)

2012-01-15T23:59:59.000Z

152

Density fluctuation measurements by far-forward collective scattering in the MST reversed-field pinch  

SciTech Connect (OSTI)

The multichannel polarimeter-interferometer system on the MST reversed-field pinch can be utilized to measure far-forward collective scattering from electron density fluctuations. The collective scattering system has 11 viewing chords with {approx}8 cm spacing. The source is a 432 {mu}m (694 GHz) far infrared laser and the scattered power is measured using a heterodyne detection scheme. Collective scattering provides a line-integrated measurement of fluctuations within the divergence of the probe beam covering wavenumber range: k{sub Up-Tack} < 1.3 cm{sup -1}, corresponding k{sub Up-Tack }{rho}{sub s} < 1.3 ({rho}{sub s} is the ion-sound Larmor radius), the region of primary interest for turbulent fluctuation-induced transport. The perpendicular wavenumber consists of toroidal, poloidal, and radial contributions, which vary with chord position. Coherent modes associated with tearing instabilities and neutral-beam driven fast particles are observed along with broadband turbulence at frequencies up to 500 kHz. Changes in frequency are consistent with a Doppler shift due to parallel plasma flow.

Ding, W. X.; Lin, L.; Brower, D. L. [Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095 (United States); Duff, J. R.; Sarff, J. S. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)

2012-10-15T23:59:59.000Z

153

Preliminary assessment of a small robotic rover for Titan exploration  

Science Journals Connector (OSTI)

Titan is a very interesting target in deep space exploration. With its solid surface on which a rover can easily travel and its methane lakes which can be sailed it is the ideal target for a deep space mission which includes a mobile platform. In the present paper the general layout of a rover for a mission to Titan is studied, dealing with the mobility, power generation and trajectory control issues. A four-wheels configuration with slip steering was chosen; to compare this solution with the more conventional strategy based on steering wheels, simulations were performed on some trajectories computed through the well known ‘potential’ method, using both slip steering and conventional steering control, for different vehicle speeds. The comparison between the simulated trajectories allows to state the adequateness of the proposed approach. The results here obtained apply not only to a future mission to Titan, but also to other missions designed for the exploration of the satellites of the outer planets having a size comparable with that of Titan and the largest Kuiper belt objects like Pluto and 136472 Makemake.

Giancarlo Genta; Alessandro Genta

2011-01-01T23:59:59.000Z

154

LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE  

SciTech Connect (OSTI)

In this paper, we analyze the strong unidentified emission near 3.28 {mu}m in Titan's upper daytime atmosphere recently discovered by Dinelli et al. We have studied it by using the NASA Ames PAH IR Spectroscopic Database. The polycyclic aromatic hydrocarbons (PAHs), after absorbing UV solar radiation, are able to emit strongly near 3.3 {mu}m. By using current models for the redistribution of the absorbed UV energy, we have explained the observed spectral feature and have derived the vertical distribution of PAH abundances in Titan's upper atmosphere. PAHs have been found to be present in large concentrations, about (2-3) Multiplication-Sign 10{sup 4} particles cm{sup -3}. The identified PAHs have 9-96 carbons, with a concentration-weighted average of 34 carbons. The mean mass is {approx}430 u; the mean area is about 0.53 nm{sup 2}; they are formed by 10-11 rings on average, and about one-third of them contain nitrogen atoms. Recently, benzene together with light aromatic species as well as small concentrations of heavy positive and negative ions have been detected in Titan's upper atmosphere. We suggest that the large concentrations of PAHs found here are the neutral counterpart of those positive and negative ions, which hence supports the theory that the origin of Titan main haze layer is located in the upper atmosphere.

Lopez-Puertas, M.; Funke, B.; Garcia-Comas, M. [Instituto de Astrofisica de Andalucia (CSIC), E-18080 Granada (Spain); Dinelli, B. M. [ISAC-CNR, I-40129 Bologna (Italy); Adriani, A.; D'Aversa, E. [IAPS-INAF, I-00133 Rome (Italy); Moriconi, M. L. [ISAC-CNR, I-00133 Rome (Italy); Boersma, C.; Allamandola, L. J., E-mail: puertas@iaa.es [NASA Ames Research Center, Moffett Field, CA 94035-1000 (United States)

2013-06-20T23:59:59.000Z

155

Storms, polar deposits and the methane cycle in Titan's atmosphere  

Science Journals Connector (OSTI)

...2004GL021415 . Lorenz, R.D , 2006The sand seas on Titan: Cassini RADAR...Stevenson1985Thermodynamics of clathrate hydrate at low and high pressures with...constituent, methane, exists as a gas, liquid and solid, and cycles...constituent, methane, exists as a gas, liquid and solid, and cycles...

2009-01-01T23:59:59.000Z

156

Planetary and Space Science 54 (2006) 11771187 Titan's methane cycle  

E-Print Network [OSTI]

Abstract Methane is key to sustaining Titan's thick nitrogen atmosphere. However, methane is destroyed and the pressure induced opacity in the infrared, particularly by CH4­N2 and H2­N2 collisions in the troposphere), whose reaction with carbon grains or carbon dioxide in the crustal pores produces methane gas

Atreya, Sushil

157

Storms, polar deposits and the methane cycle in Titan's atmosphere  

Science Journals Connector (OSTI)

...systems indicate the production of virga, with...daily averaged solar insolation (Brown...mid-troposphere convection cell evident from the...Sun lowers the solar heating two orders...methane and the production of haze causes...2008Titan's inventory of organic surface materials...application to the outer solar system. Astrophys...

2009-01-01T23:59:59.000Z

158

Visually Navigating the RMS Titanic with SLAM Information Filters  

E-Print Network [OSTI]

demonstrate automatic visually-augmented navigation processing of a sequence of 866 images of the RMS Titanic. These include hydrothermal vent sites, cold seep sites, shipwrecks of archaeological significance, coral reefs as a representation of the data that serves as input to our algorithm. It is the result of semi-automatic processing

Eustice, Ryan

159

--No Title--  

Broader source: Energy.gov (indexed) [DOE]

simulated SRS salt solution, nitric acid, oxalic acid, sodium hydroxide, simulated SRS sludge, monosodium titanate, and crystalline silicotitanate. Filter Testing with Static Test...

160

How to Turn a Jaguar into a Titan | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

How to Turn a Jaguar into a Titan How to Turn a Jaguar into a Titan How to Turn a Jaguar into a Titan November 27, 2012 - 3:02pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What powers Titan? 299,008 processor cores 710 terabytes of memory 8.2 MW power usage How to Turn a Jaguar into a Titan It takes more than the side mural to turn the fastest supercomputer dedicated to Open Science into the fastest computer in the world. The same room and cabinets that held supercomputer Jaguar, now holds Titan. Storified by Energy Department · Tue, Nov 27 2012 12:07:29 How did Oak Ridge National Labs turn this world-class supercomputer into an even faster, more efficient supercomputer? Wikimedia It took a little more than changing the sticker. Wikimedia

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161

SRNL - News Room  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Reducing Ion Exchange Particles to Nano-Size Shows Big Potential Reducing Ion Exchange Particles to Nano-Size Shows Big Potential ( PDF button Download printer-friendly, PDF version) AIKEN, S.C. (January 30, 2012) - Sometimes bigger isn't better. Researchers at the U.S. Department of Energy's Savannah River National Laboratory have successfully shown that they can replace useful little particles of monosodium titanate (MST) with even tinier nano-sized particles, making them even more useful for a variety of applications. MST is an ion exchange material used to decontaminate radioactive and industrial wastewater solutions, and has been shown to be an effective way to deliver metals into living cells for some types of medical treatment. Typically, MST, and a modified form known as mMST developed by SRNL and Sandia National Laboratories, are in the form of fine powders, spherically-shaped particles about 1 to 10 microns in diameter (a micron is one-millionth of a meter).

162

Titan Imagery with Keck AO during and after Probe Entry  

SciTech Connect (OSTI)

We present adaptive optics data from the 10-m W.M. Keck telescope that were taken during the time the Huygens probe descended through Titan's atmosphere, and on the days following touch-down. The spatial resolution of the images is typically {approx}0.04-inch, or {approx}240 km on Titan (60 km/pixel). No probe entry signal was detected at levels exceeding 0.8 {micro}Jy (3-{sigma}) per pixel (0.01-inch), which although within the range of predicted flux levels, cannot constrain any models. We present data on Titan's surface, troposphere and stratosphere during the days following probe entry, when the solar phase angle varied from 0.05{sup o} up to 0.8{sup o}, with the Sun in the West. Contrary to expectation, the data often showed the East side to be brightest. Adding data obtained with Keck and Gemini over the past few years reveals that the East-West asymmetry can be explained by a combination of the solar phase angle effect together with a general preponderance of haze on Titan's East or morning hemisphere. The troposphere was characterized by quiescent weather; only a few small clouds were present near the south pole, at typical altitudes of 30-40 km. While stratospheric haze was prominent over the northern hemisphere, tropospheric haze dominated the south, from the S. pole up to latitudes of {approx} -45{sup o}. An intriguing observation is that obtained at 1.22 {micro}m, which revealed haze in the form of a collar at -60{sup o}, in contrast to the polar haze cap as usually seen. A comparison of narrow band JHK images of Titan's surface with that obtained by Cassini ISS shows a striking resemblance in small-scale features. After a decent attempt to remove the atmosphere from the images, the surface contrast between dark and bright areas may be larger at 2 {micro}m than at 1.6 and 1.3 {micro}m. If true, this could imply that the dark areas on Titan's surface are covered by a coarser grained frost than the bright areas, and/or that there are more absorbers, such as NH{sub 3}/NH{sub 4}SH frost, in these dark areas.

de Pater, I; Adamkovics, M; Bouchez, A H; Brown, M E; Gibbard, S G; Marchis, F; Roe, H G; Schaller, E L; Young, E

2006-02-03T23:59:59.000Z

163

Radiation Damage Effects in Candidate Titanates for Pu Disposition: Pyrochlore  

SciTech Connect (OSTI)

Laboratory experiments on titanate ceramics were performed to verify whether certain assumptions are valid regarding the swelling, chemical durability, and microcracking that might occur as 239Pu decays. Titanate ceramics are the material of choice for the immobilization of surplus weapons-grade Pu. The short-lived isotope, 238Pu, was incorporated into the ceramic formulation to accelerate the effects of radiation induced damage. We report on the effects of this damage on the density (volumetric swelling <6%), crystal structure of pyrochlore-bearing specimens (amorphous after about 2?1018 ?/g), and dissolution (no change from fully the crystalline specimen). Even though the specimens became amorphous during the tests, there was no evidence for microcracking in the photomicrographs from the scanning electron microscope. Thus, although pyrochlore is susceptible to radiation-induced damage, the material remains chemically and physically viable as a material for immobilizing surplus weapons-grade Pu.

Strachan, Denis M.; Scheele, Randall D.; Buck, Edgar C.; Icenhower, Jonathan P.; Kozelisky, Anne E.; Sell, Rachel L.; Elovich, Robert J.; Buchmiller, William C.

2005-10-15T23:59:59.000Z

164

Safety evaluation of RTG launches aboard Titan IV launch vehicles  

SciTech Connect (OSTI)

The analytical tool used to evaluate accidents aboard a Titan IV launch vehicle involving a Radioisotope Thermoelectric Generator (RTG) is discussed. The Launch Accident Scenario Evaluation Program-Titan IV version (LASEP-T) uses a Monte Carlo approach to determine the response of an RTG to various threatening environments. The threatening environments arise from a complex interplay of probabilistic and deterministic processes, and are therefore parameterized by a set of random variables with probability distributions. The assessment of the RTG response to a given environment is based on both empirical data and theoretical modeling. Imbedding detailed, complex response models into the LASEP-T calculation was not practical. Simpler response models have been constructed to capture both the inherent variability due to the phenomenology of the accident scenario along with the uncertainty of predicting response behavior. The treatment of variability and uncertainty as it pertains to the launch accident evaluation of RTG response will be discussed.

Rosko, Robert J.; Loughin, Stephen [Lockheed Martin Missiles and Space P.O. Box 8555 Philadelphia, Pennsylvania 19101 (United States)

1997-01-10T23:59:59.000Z

165

Method for removing metal ions from solution with titanate sorbents  

DOE Patents [OSTI]

A method for removing metal ions from solution comprises the steps of providing titanate particles by spray-drying a solution or slurry comprising sorbent titanates having a particle size up to 20 micrometers, optionally in the presence of polymer free of cellulose functionality as binder, said sorbent being active towards heavy metals from Periodic Table (CAS version) Groups IA, IIA, IB, IIB, IIIB, and VIII, to provide monodisperse, substantially spherical particles in a yield of at least 70 percent of theoretical yield and having a particle size distribution in the range of 1 to 500 micrometers. The particles can be used free flowing in columns or beds, or entrapped in a nonwoven, fibrous web or matrix or a cast porous membrane, to selectively remove metal ions from aqueous or organic liquid.

Lundquist, Susan H. (White Bear Township, MN); White, Lloyd R. (Minneapolis, MN)

1999-01-01T23:59:59.000Z

166

China Titans Energy Technology Group Co Ltd | Open Energy Information  

Open Energy Info (EERE)

Titans Energy Technology Group Co Ltd Titans Energy Technology Group Co Ltd Jump to: navigation, search Name China Titans Energy Technology Group Co Ltd Place Zhuhai, Guangdong Province, China Sector Solar, Vehicles, Wind energy Product China-based power electronics company that manufacturers and supplies power grid montioring and management products, charging equipment for electric vehicles and wind and solar power generation control products. Coordinates 22.277°, 113.556808° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":22.277,"lon":113.556808,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

167

SEASONAL DISAPPEARANCE OF FAR-INFRARED HAZE IN TITAN'S STRATOSPHERE  

SciTech Connect (OSTI)

A far-infrared emission band attributed to volatile or refractory haze in Titan's stratosphere has been decreasing in intensity since Cassini's arrival in 2004. The 220 cm{sup -1} feature, first seen by the Voyager Infrared Interferometer Spectrometer, has only been found in Titan's winter polar region. The emission peaks at about 140 km altitude near the winter stratospheric temperature minimum. Observations recorded over the period 2004-2012 by the Composite Infrared Spectrometer on Cassini show a decrease in the intensity of this feature by about a factor of four. Possible seasonal causes of this decline are an increase in photolytic destruction of source chemicals at high altitude, a lessening of condensation as solar heating increased, or a weakening of downwelling of vapors. As of early 2012, the 220 cm{sup -1} haze has not yet been detected in the south. The haze composition is unknown, but its decrease is similar to that of HC{sub 3}N gas in Titan's polar stratosphere, pointing to a nitrile origin.

Jennings, Donald E.; Anderson, C. M.; Flasar, F. M.; Cottini, V. [Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Samuelson, R. E.; Nixon, C. A.; Kunde, V. G.; Achterberg, R. K. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); De Kok, R. [SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht (Netherlands); Coustenis, A.; Vinatier, S. [LESIA, Observatoire de Paris-Meudon, 92195 Meudon Cedex (France); Calcutt, S. B., E-mail: donald.e.jennings@nasa.gov [Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU (United Kingdom)

2012-07-20T23:59:59.000Z

168

Persistent Photoconductivity in Strontium Titanate Marianne C. Tarun, Farida A. Selim, and Matthew D. McCluskey*  

E-Print Network [OSTI]

Persistent Photoconductivity in Strontium Titanate Marianne C. Tarun, Farida A. Selim, and Matthew was observed in strontium titanate (SrTiO3) single crystals. When exposed to sub-bandgap light (2.9 e, and colossal magnetoresistance [1]. Strontium titanate (SrTiO3), in particular, is the subject of intense

McCluskey, Matthew

169

Plasma environment in the wake of Titan from hybrid simulation: A case study  

E-Print Network [OSTI]

Plasma environment in the wake of Titan from hybrid simulation: A case study R. Modolo,1 G. M] On 26 December 2005, the Cassini spacecraft flew through Titan's plasma wake and revealed a complex position of the wake. Two distinct plasma regions are identified with a significant difference

Gurnett, Donald A.

170

Ambient ion distributions in Saturns magnetosphere near Titan during a non-Voyager type interaction  

E-Print Network [OSTI]

V and 2.9 keV. Both species had a thermal speed of 200 km/s. The flow speed of the am- bient plasma with TitanÃ?s atmosphere and ionosphere rather than a strong intrinsic magnetic field. This observed plasmaAmbient ion distributions in SaturnÃ?s magnetosphere near Titan during a non-Voyager type

California at Berkeley, University of

171

Palaeoflood-generating mechanisms on Earth, Mars, and Titan Devon M. Burr  

E-Print Network [OSTI]

glaciation (e.g. the catastrophic release of water from glacial lakes), which requires an atmospheric cyclePalaeoflood-generating mechanisms on Earth, Mars, and Titan Devon M. Burr a Earth and Planetary flow has been observed on Earth and Mars and hypothesized for Titan. The mechanisms for generating

Perfect, Ed

172

Simulation and Cryogenic Experiments of Natural Convection for the Titan Montgolfiere  

E-Print Network [OSTI]

Simulation and Cryogenic Experiments of Natural Convection for the Titan Montgolfiere Yuri Feldman for prediction of the buoyancy of single- and double- walled balloons in a cryogenic environment such as Titan at cryogenic conditions. The predicted buoyancy and temperature fields compare favorably with experiments

Dabiri, John O.

173

The measurement and interpretation of electrostatic potential profiles across grain boundaries in strontium titanate  

E-Print Network [OSTI]

in strontium titanate S J P Longworth 1,2 , K M Knowles 1,3 and R E Dunin-Borkowski 1 1 Department of Materials-doped polycrystalline strontium titanate samples are summarised. An assessment is made of whether the measured

Dunin-Borkowski, Rafal E.

174

Optimization of High Tunability Barium Strontium Titanate Thin Films Grown by RF Magnetron  

E-Print Network [OSTI]

Optimization of High Tunability Barium Strontium Titanate Thin Films Grown by RF Magnetron Abstract-- Barium strontium titanate is a solid solution perovskite with a field-dependent permittivity.7 MV/cm. I. INTRODUCTION In recent years there has been much interest in thin-film barium strontium

York, Robert A.

175

Titan Student Union "Visioning Day" Activity (March 18, 2011) Student Engagement Report  

E-Print Network [OSTI]

Titan Student Union ­ "Visioning Day" Activity (March 18, 2011) Student Engagement Report FY 2010-2011 Purpose Statement The Titan Student Union and Student Recreation Center, collectively a unit of the Associated Students, CSUF, Inc., together serve as the primary gathering place and recreational facility

de Lijser, Peter

176

Near-infrared spectral mapping of Titan's mountains and channels Jason W. Barnes,1,2  

E-Print Network [OSTI]

Near-infrared spectral mapping of Titan's mountains and channels Jason W. Barnes,1,2 Jani Radebaugh bright spectral units based on our findings. Citation: Barnes, J. W., et al. (2007), Near-infrared ranges on Titan using data from Cassini's Visual and Infrared Mapping Spectrometer (VIMS) obtained during

Perfect, Ed

177

On the Approximation Ratio of the MST-based Heuristic for the Energy-Efficient Broadcast Problem in Static Ad-Hoc Radio Networks  

E-Print Network [OSTI]

are located (see [28, 32]). Energy conservation is a critical issue in an ad-hoc wire- less networkOn the Approximation Ratio of the MST-based Heuristic for the Energy-Efficient Broadcast Problem@dia.unisa.it Abstract We present a technique to evaluate the approximation ra- tio on random instances of the Minimum

Bermond, Jean-Claude

178

Titan | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Facilities » Oak Ridge Facilities » Oak Ridge Leadership Computing Facility (OLCF) » Titan Advanced Scientific Computing Research (ASCR) ASCR Home About Research Facilities Accessing ASCR Supercomputers Oak Ridge Leadership Computing Facility (OLCF) Argonne Leadership Computing Facility (ALCF) National Energy Research Scientific Computing Center (NERSC) Energy Sciences Network (ESnet) Research & Evaluation Prototypes (REP) Innovative & Novel Computational Impact on Theory and Experiment (INCITE) ASCR Leadership Computing Challenge (ALCC) Science Highlights Benefits of ASCR Funding Opportunities Advanced Scientific Computing Advisory Committee (ASCAC) News & Resources Contact Information Advanced Scientific Computing Research U.S. Department of Energy SC-21/Germantown Building

179

Strain engineered barium strontium titanate for tunable thin film resonators  

SciTech Connect (OSTI)

Piezoelectric properties of epitaxial (001) barium strontium titanate (BST) films are computed as functions of composition, misfit strain, and temperature using a non-linear thermodynamic model. Results show that through adjusting in-plane strains, a highly adaptive rhombohedral ferroelectric phase can be stabilized at room temperature with outstanding piezoelectric response exceeding those of lead based piezoceramics. Furthermore, by adjusting the composition and the in-plane misfit, an electrically tunable piezoelectric response can be obtained in the paraelectric state. These findings indicate that strain engineered BST films can be utilized in the development of electrically tunable and switchable surface and bulk acoustic wave resonators.

Khassaf, H.; Khakpash, N. [Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269 (United States); Sun, F. [Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States); Sbrockey, N. M.; Tompa, G. S. [Structured Materials Industries, Inc., Piscataway, New Jersey 08854 (United States); Kalkur, T. S. [Department of Electrical and Computer Engineering, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States); Alpay, S. P., E-mail: p.alpay@ims.uconn.edu [Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269 (United States); Department of Physics, University of Connecticut, Storrs, Connecticut 06269 (United States)

2014-05-19T23:59:59.000Z

180

Concept options for the aerial survey of Titan  

Science Journals Connector (OSTI)

Various aerial platforms intended for long endurance survey of the Titan surface are presented. A few novel concepts are introduced, including a heated methane balloon and a balloon with a tethered wind turbine. All the concept options are predicted to have lower scientific payload fractions than the Huygens probe. It is concluded that the selection of the best aerial platform option depends on more accurate mass estimates and a clear decision on whether, or not, in situ surface composition measurements are required in conjunction with aerial remote sensing.

G.E. Dorrington

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Dielectric behavior of barium modified strontium bismuth titanate ceramic  

SciTech Connect (OSTI)

Barium Modified Strontium Bismuth Titanate(SBT) ceramic with general formula Sr1?xBaxBi4Ti4O15 is prepared by solid state reaction route. The structural analysis of the ceramics was done by X-ray diffraction technique. The X-ray patterns show that all the compositions are of single phase with orthorhombic structure. The temperature dependent dielectric behavior shows that the transition temperature decreases with Ba content but the maximum dielectric constant increases. The decreases of the transition with increase in Ba{sup 2+} ion, may be due to the decrease of orthorhombicity by the incorporation of Ba{sup 2+} ion in SBT lattice.

Nayak, P., E-mail: priyambada.pce@gmail.com [Department of Physics, National Institute of Technology, Rourkela, Odisha-769008 (India); Badapanda, T. [Department of Physics, C.V. Raman College of Engineering, Bhubaneswar, Odisha-752054 (India); Anwar, S.; Panigrahi, S. [Colloids and Materials Chemistry, Institute of Minerals and Materials Technology, Bhubaneswar, Odisha-751013 (India)

2014-04-24T23:59:59.000Z

182

Sensitivity Increases for the TITAN Decay Spectroscopy Program  

E-Print Network [OSTI]

The TITAN facility at TRIUMF has recently initiated a program of performing decay spectroscopy measurements in an electron-beam ion-trap (EBIT). The unique environment of the EBIT provides backing-free storage of the radioactive ions, while guiding charged decay particles from the trap centre via the strong magnetic field. This measurement technique is able to provide a significant increase in detection sensitivity for photons which result from radioactive decay. A brief overview of this device is presented, along with methods of improving the signal-to-background ratio for photon detection by reducing Compton scattered events, and eliminating vibrational noise.

Leach, K G; Grossheim, A; Andreoiu, C; Dilling, J; Frekers, D; Good, M; Seeraji, S

2014-01-01T23:59:59.000Z

183

Sensitivity Increases for the TITAN Decay Spectroscopy Program  

E-Print Network [OSTI]

The TITAN facility at TRIUMF has recently initiated a program of performing decay spectroscopy measurements in an electron-beam ion-trap (EBIT). The unique environment of the EBIT provides backing-free storage of the radioactive ions, while guiding charged decay particles from the trap centre via the strong magnetic field. This measurement technique is able to provide a significant increase in detection sensitivity for photons which result from radioactive decay. A brief overview of this device is presented, along with methods of improving the signal-to-background ratio for photon detection by reducing Compton scattered events, and eliminating vibrational noise.

K. G. Leach; A. Lennarz; A. Grossheim; C. Andreoiu; J. Dilling; D. Frekers; M. Good; S. Seeraji

2014-10-30T23:59:59.000Z

184

Untangling the Chemical Evolution of Titan's Atmosphere and Surface -- From Homogeneous to Heterogeneous Chemistry  

SciTech Connect (OSTI)

The arrival of the Cassini-Huygens probe at Saturn's moon Titan - the only Solar System body besides Earth and Venus with a solid surface and a thick atmosphere with a pressure of 1.4 atm at surface level - in 2004 opened up a new chapter in the history of Solar System exploration. The mission revealed Titan as a world with striking Earth-like landscapes involving hydrocarbon lakes and seas as well as sand dunes and lava-like features interspersed with craters and icy mountains of hitherto unknown chemical composition. The discovery of a dynamic atmosphere and active weather system illustrates further the similarities between Titan and Earth. The aerosol-based haze layers, which give Titan its orange-brownish color, are not only Titan's most prominent optically visible features, but also play a crucial role in determining Titan's thermal structure and chemistry. These smog-like haze layers are thought to be very similar to those that were present in Earth's atmosphere before life developed more than 3.8 billion years ago, absorbing the destructive ultraviolet radiation from the Sun, thus acting as 'prebiotic ozone' to preserve astrobiologically important molecules on Titan. Compared to Earth, Titan's low surface temperature of 94 K and the absence of liquid water preclude the evolution of biological chemistry as we know it. Exactly because of these low temperatures, Titan provides us with a unique prebiotic 'atmospheric laboratory' yielding vital clues - at the frozen stage - on the likely chemical composition of the atmosphere of the primitive Earth. However, the underlying chemical processes, which initiate the haze formation from simple molecules, have been not understood well to date.

Kaiser, Ralf I.; Maksyutenko, Pavlo; Ennis, Courtney; Zhang, Fangtong; Gu, Xibin; Krishtal, Sergey P.; Mebel, Alexander M.; Kostko, Oleg; Ahmed, Musahid

2010-03-16T23:59:59.000Z

185

AN ESTIMATE OF THE CHEMICAL COMPOSITION OF TITAN's LAKES  

SciTech Connect (OSTI)

Hundreds of radar-dark patches interpreted as lakes have been discovered in the north and south polar regions of Titan. We have estimated the composition of these lakes by using the direct abundance measurements from the Gas Chromatograph Mass Spectrometer aboard the Huygens probe and recent photochemical models based on the vertical temperature profile derived by the Huygens Atmospheric Structure Instrument. Thermodynamic equilibrium is assumed between the atmosphere and the lakes, which are also considered nonideal solutions. We find that the main constituents of the lakes are ethane (C{sub 2}H{sub 6}) (approx76%-79%), propane (C{sub 3}H{sub 8}) (approx7%-8%), methane (CH{sub 4}) (approx5%-10%), hydrogen cyanide (HCN) (approx2%-3%), butene (C{sub 4}H{sub 8}) (approx1%), butane (C{sub 4}H{sub 10}) (approx1%), and acetylene (C{sub 2}H{sub 2}) (approx1%). The calculated composition of lakes is then substantially different from what has been expected from models elaborated prior to the exploration of Titan by the Cassini-Huygens spacecraft.

Cordier, Daniel [Ecole Nationale Superieure de Chimie de Rennes, CNRS, UMR 6226, Avenue du General Leclerc, CS 50837, 35708 Rennes Cedex 7 (France); Mousis, Olivier; Lunine, Jonathan I.; Lavvas, Panayotis [Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ (United States); Vuitton, Veronique, E-mail: daniel.cordier@ensc-rennes.f [Universite Joseph Fourier, Laboratoire de Planetologie de Grenoble, CNRS/INSU (France)

2009-12-20T23:59:59.000Z

186

Microsoft PowerPoint - Campbell-1.ppt  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ARP Startup and Operations Summary ARP Startup and Operations Summary Seth Campbell ARP/MCU Process Engineer Washington Savannah River Co. May 20, 2009 Waste Management Technical Exchange LWO-LWE-2009-00132 2 ARP Startup and Operations Summary Agenda Mission Process Overview Equipment Testing Startup Processing Results Issues & Resolution Examples Enhancement Summary 3 ARP Startup and Operations Summary ARP Mission Process dissolved salt solution for disposal - Receive salt solution from SRS Tanks (≤ 1.1 Ci/gal) - Remove soluble Sr and Pu via Monosodium Titanate - Filter to remove sludge & MST solids Provide operational experience for SWPF - Equipment reliability - Process chemistry - Lessons learned 4 ARP Startup and Operations Summary Process Overview Receive waste from underground storage tank

187

Page not found | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

51 - 9860 of 28,560 results. 51 - 9860 of 28,560 results. Download CX-005506: Categorical Exclusion Determination New Polymer Synthesis CX(s) Applied: B3.6 Date: 02/14/2011 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office http://energy.gov/nepa/downloads/cx-005506-categorical-exclusion-determination Download CX-007012: Categorical Exclusion Determination Monosodium Titanate (MST) Rheology CX(s) Applied: B3.6 Date: 09/09/2011 Location(s): Aiken, South Carolina Office(s): Environmental Management, National Energy Technology Laboratory http://energy.gov/nepa/downloads/cx-007012-categorical-exclusion-determination Download CX-007014: Categorical Exclusion Determination A Permeable Active Amendment Concrete (PAAC) for Contaminant Remediation

188

Page not found | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

31 - 27540 of 28,904 results. 31 - 27540 of 28,904 results. Download CX-009088: Categorical Exclusion Determination Curecanti-Crystal 115 Kilovolt Transmission Line Routine Maintenance of Existing Access Roads and Right-of-Ways CX(s) Applied: B1.3 Date: 08/07/2012 Location(s): Colorado Offices(s): Western Area Power Administration-Rocky Mountain Region http://energy.gov/nepa/downloads/cx-009088-categorical-exclusion-determination Download CX-009093: Categorical Exclusion Determination Knolls Laboratory Q14 Sprinkler System Upgrade Project CX(s) Applied: B1.15, B2.2 Date: 08/03/2012 Location(s): New York Offices(s): Naval Nuclear Propulsion Program http://energy.gov/nepa/downloads/cx-009093-categorical-exclusion-determination Download CX-009101: Categorical Exclusion Determination Monosodium Titanate (MST) Rheology

189

CX-002880: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

0: Categorical Exclusion Determination 0: Categorical Exclusion Determination CX-002880: Categorical Exclusion Determination Preparation, Irradiation, and Temperature-Time Settling Treatment of Rheology Samples CX(s) Applied: B3.6 Date: 06/09/2010 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office Sample mixtures of simulated sludge, monosodium titanate (MST), crystallized silicotitanate (CST, grounded or ungrounded), and simulated salt solution will be prepared in varying ratios and treated to temperatures of up to 60 degrees Celsius for varying settling times. After treatment, particle size distribution of the material will be analyzed; physical properties including bulk density and pH will be measured. The Analytical Development group will analyze particle size distribution of the

190

TESTING OF A FULL-SCALE ROTARY MICROFILTER FOR THE ENHANCED PROCESS FOR RADIONUCLIDES REMOVAL  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) researchers are investigating and developing a rotary microfilter for solid-liquid separation applications in the Department of Energy (DOE) complex. One application involves use in the Enhanced Processes for Radionuclide Removal (EPRR) at the Savannah River Site (SRS). To assess this application, the authors performed rotary filter testing with a full-scale, 25-disk unit manufactured by SpinTek Filtration with 0.5 micron filter media manufactured by Pall Corporation. The filter includes proprietary enhancements by SRNL. The most recent enhancement is replacement of the filter's main shaft seal with a John Crane Type 28LD gas-cooled seal. The feed material was SRS Tank 8F simulated sludge blended with monosodium titanate (MST). Testing examined total insoluble solids concentrations of 0.06 wt % (126 hours of testing) and 5 wt % (82 hours of testing). The following are conclusions from this testing.

Herman, D; David Stefanko, D; Michael Poirier, M; Samuel Fink, S

2009-01-01T23:59:59.000Z

191

PROCESSING ALTERNATIVES FOR DESTRUCTION OF TETRAPHENYLBORATE  

SciTech Connect (OSTI)

Two processes were chosen in the 1980's at the Savannah River Site (SRS) to decontaminate the soluble High Level Waste (HLW). The In Tank Precipitation (ITP) process (1,2) was developed at SRS for the removal of radioactive cesium and actinides from the soluble HLW. Sodium tetraphenylborate was added to the waste to precipitate cesium and monosodium titanate (MST) was added to adsorb actinides, primarily uranium and plutonium. Two products of this process were a low activity waste stream and a concentrated organic stream containing cesium tetraphenylborate and actinides adsorbed on monosodium titanate (MST). A copper catalyzed acid hydrolysis process was built to process (3, 4) the Tank 48H cesium tetraphenylborate waste in the SRS's Defense Waste Processing Facility (DWPF). Operation of the DWPF would have resulted in the production of benzene for incineration in SRS's Consolidated Incineration Facility. This process was abandoned together with the ITP process in 1998 due to high benzene in ITP caused by decomposition of excess sodium tetraphenylborate. Processing in ITP resulted in the production of approximately 1.0 million liters of HLW. SRS has chosen a solvent extraction process combined with adsorption of the actinides to decontaminate the soluble HLW stream (5). However, the waste in Tank 48H is incompatible with existing waste processing facilities. As a result, a processing facility is needed to disposition the HLW in Tank 48H. This paper will describe the process for searching for processing options by SRS task teams for the disposition of the waste in Tank 48H. In addition, attempts to develop a caustic hydrolysis process for in tank destruction of tetraphenylborate will be presented. Lastly, the development of both a caustic and acidic copper catalyzed peroxide oxidation process will be discussed.

Lambert, D; Thomas Peters, T; Samuel Fink, S

2007-02-27T23:59:59.000Z

192

Dielectric and electromechanical properties of barium and zirconium co-doped sodium bismuth titanate  

E-Print Network [OSTI]

Compositional exploration was conducted within the alkaline bismuth titanate system by doping on the A- and B- sites with Ba?² and Zr??, respectively. Results on the phase, dielectric and electromechanical properties of ...

Sheets, Sossity A. (Sossity Amber), 1973-

2000-01-01T23:59:59.000Z

193

TRAMS: A new dynamic cloud model for Titan's methane clouds Erika L. Barth1  

E-Print Network [OSTI]

's atmosphere. In initial model tests over a two-dimensional domain, a warm bubble or random temperature accelerate upwards. Griffith et al. [2000] looked into the stability of Titan's atmosphere and found an LCL

Rafkin, Scot C. R.

194

Optimizing Science Return from Titan Aerial Explorers Ralph D. Lorenz1  

E-Print Network [OSTI]

to settle into the interior forming a rocky core: Titan's surface should be mostly of light materials ­ ice geomorphologies like hydroblemes, tidal flats and cliffs. This same photolysis yields a ubiquitous organic haze

Lorenz, Ralph D.

195

Radiation Damage Effects in Candidate Titanates for Pu Disposition: Zirconolite  

SciTech Connect (OSTI)

Specimens of titanate ceramics containing approximately 10 mass% 238Pu were tested to determine the long-term effects of radiation-induced damage from the ? decay of 239Pu that would have been disposed of in the nuclear-waste repository at Yucca Mountain. These tests provided information on the changes in bulk properties such as dimensions, densities, and chemical durability. Although these materials become amorphous at low doses, the specimens remained physically strong. Even after the radiation-induced swelling saturated, the specimens remained physically intact with no evidence for microcracking. Thus, in combination with results reported previously on similar materials, the material remains a physically viable material for the disposition of surplus weapons-grade Pu.

Strachan, Denis M.; Scheele, Randall D.; Buck, Edgar C.; Kozelisky, Anne E.; Sell, Rachel L.; Elovich, Robert J.; Buchmiller, William C.

2008-01-15T23:59:59.000Z

196

Radiation Damange Effects in Candidate Titanates for Plutonium Disposition: Pyrochlore.  

SciTech Connect (OSTI)

Laboratory experiments were conducted to verify certain assumptions as to the swelling, chemical durability, and microcracking that might occur in a waste-form ceramic as 239Pu decays. To study to effects of 239Pu decay, 238Pu, a short-lived isotope, was incorporated into a pyrochlore-rich baseline titanate – one that is formulated for pyrochlore as the dominant phase. The self-irradiation with 238Pu provided information on damage to the crystal structures of the phases in the ceramic as well as changes in dimensions, densities, and chemical durability. Overall, the pyrochlore baseline material appears to be a viable material for the immobilization of weapons-ready Pu. The physical and chemical properties of this material are not adversely affected by the material becoming amorphous from radiation-induced damage.

Strachan, Denis M.; Scheele, Randall D.; Buck, Edgar C.; Kozelisky, Anne E.; Sell, Rachel L.; Elovich, Robert J.; Buchmiller, William C.

2005-10-15T23:59:59.000Z

197

XANES study of Fe-implanted strontium titanate  

SciTech Connect (OSTI)

Properties of strontium titanate SrTiO{sub 3} (STO) depend to a great extent on the substitutional dopants and defects of crystal structure. The ion beam implantation method was used for doping STO (001) crystals with Fe at different doses. Implanted samples were then annealed at 350°C in oxygen to induce recrystallization and remove oxygen vacancies produced during ion implantation process. The effect of Fe doping and post-implantation annealing was studied by X-ray Absorption Near Edge Spectroscopy (XANES) method and Superconducting Quantum Interference Device (SQUID). XANES allowed to monitor the change in structure of STO crystals and in the local environment of Fe following the implantation and annealing steps. SQUID measurements revealed correlation between magnetic moment and Fe implantation dose. Ferromagnetic hysteresis was observed on selected Fe-implanted STO at 5 K. The observed magnetic properties can be correlated with the several Fe oxide phases in addition to the presence of O/Ti vacancies.

Lobacheva, O.; Goncharova, L. V.; Chavarha, M.; Sham, T. K. [Department of Physics and Astronomy, and Department of Chemistry, University of Western Ontario, London, ON N6A 5B7 (Canada)

2014-03-31T23:59:59.000Z

198

JOURNAL DE PHYSIQUE Colloque C2, suppl&ment au no 4, Tome 33, Avril 1972, page C2-135 THE LATTICE DYNAMICS OF STRONTIUM TITANATE  

E-Print Network [OSTI]

DYNAMICS OF STRONTIUM TITANATE W. G. STIRLING and R. A. COWLEY Department of Physics, Edinburgh University vibration dans le titanate de Strontium, les frkquences de plusieurs modes normaux se propageant dans les and eigenvectors of the normal modes of vibration in Strontium Titanate, the fre- quencies of several normal modes

Boyer, Edmond

199

SOLAR OCCULTATION BY TITAN MEASURED BY CASSINI/UVIS  

SciTech Connect (OSTI)

We present the first published analysis of a solar occultation by Titan's atmosphere measured by the Ultraviolet Imaging Spectrograph on board Cassini. The data were measured during flyby T53 in 2009 April and correspond to latitudes between 21 Degree-Sign and 28 Degree-Sign south. The analysis utilizes the absorption of two solar emission lines (584 A and 630 A) in the ionization continuum of the N{sub 2} absorption cross section and solar emission lines around 1085 A where absorption is due to CH{sub 4}. The measured transmission at these wavelengths provides a direct estimate of the N{sub 2} and CH{sub 4} column densities along the line of sight from the spacecraft to the Sun, which we inverted to obtain the number densities. The high signal-to-noise ratio of the data allowed us to retrieve density profiles in the altitude range 1120-1400 km for nitrogen and 850-1300 km for methane. We find an N{sub 2} scale height of {approx}76 km and a temperature of {approx}153 K. Our results are in general agreement with those from previous work, although there are some differences. Particularly, our profiles agree, considering uncertainties, with the density profiles derived from the Voyager 1 Ultraviolet Spectrograph data, and with in situ measurements by the Ion Neutral Mass Spectrometer with revised calibration.

Capalbo, Fernando J.; Benilan, Yves [Laboratoire Interuniversitaire des Systemes Atmospheriques (LISA), UMR 7583 du CNRS, Universites Paris Est Creteil (UPEC) and Paris Diderot - UPD, 61 avenue du General de Gaulle, 94010 Creteil Cedex (France); Yelle, Roger V.; Koskinen, Tommi T.; Sandel, Bill R. [Lunar and Planetary Laboratory, University of Arizona, 1629 E. University Blvd., Tucson, AZ 85721 (United States); Holsclaw, Gregory M.; McClintock, William E., E-mail: fernando.capalbo@lisa.u-pec.fr [Laboratory for Atmospheric and Space Physics, University of Colorado, 3665 Discovery Drive, Boulder, CO 80303 (United States)

2013-04-01T23:59:59.000Z

200

The TITAN in-trap decay spectroscopy facility at TRIUMF  

E-Print Network [OSTI]

This article presents an upgraded in-trap decay spectroscopy apparatus which has been developed and constructed for use with TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). This device consists of an open-access electron-beam ion-trap (EBIT), which is surrounded radially by seven low-energy planar Si(Li) detectors. The environment of the EBIT allows for the detection of low-energy photons by providing backing-free storage of the radioactive ions, while guiding charged decay particles away from the trap centre via the strong (up to 6 T) magnetic field. In addition to excellent ion confinement and storage, the EBIT also provides a venue for performing decay spectroscopy on highly-charged radioactive ions. Recent technical advancements have been able to provide a significant increase in sensitivity for low-energy photon detection, towards the goal of measuring weak electron-capture branching ratios of the intermediate nuclei in the two-neutrino double beta ($2\

K. G. Leach; A. Grossheim; A. Lennarz; T. Brunner; J. R. Crespo López-Urrutia; A. T. Gallant; M. Good; R. Klawitter; A. A. Kwiatkowski; T. Ma; T. D. Macdonald; S. Seeraji; M. C. Simon; C. Andreoiu; J. Dilling; D. Frekers

2014-05-28T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Radiation Damage Effects in Candidate Titanates for Pu Disposition: Zirconolite  

SciTech Connect (OSTI)

This is the second of two papers on the results of radiation-induced damage accumulation in titanate ceramics that potentially could be used for weapons grade plutonium disposition. In the first paper we discussed the results from pyrochlore (betafite) based ceramics. In this paper, we discuss the effects of radiation-induced damage on the density and crystal structure of a nominally phase-pure zirconolite and two other zirconolite-bearing ceramics from the alpha decay of 238Pu. Macro (bulk) and micro (X-ray diffraction) swelling were found to be temperature independent, whereas the density determined with He gas pycnometry was temperature dependent. It took approximately 740 days (2.6?1018 ?/g) for the specimens to become X-ray amorphous—longer for the swelling to saturate. Unlike what we observed for the pyrochlore-based ceramics, we did not observe any phase changes associated with storage temperature and damage ingrowth. The forward dissolution rate at a pH value of 2 for material containing essentially all zirconolite is 1.7(4)?10-3 g/(m2?d). Very little pH dependence was observed for zirconolite specimens and, like we observed for the pyrochlore-bearing ceramics in this study, there was no dependence on the amount of radiation-induced damage. As with the pyrochlore, these materials did not become substantially friable with increasing radiation-induced damage. Even after the radiation-induced swelling saturated, the specimens remained physically intact with no evidence for microcracking. Thus, the material remains physically a viable material for the disposition of surplus weapons-grade Pu.

Strachan, Denis M.; Scheele, Randall D.; Buck, Edgar C.; Kozelisky, Anne E.; Sell, Rachel L.; Elovich, Robert J.; Buchmiller, William C.

2008-01-15T23:59:59.000Z

202

RHEOLOGY OF SETTLED SOLIDS IN THE SMALL COLUMN ION EXCHANGE PROCESS  

SciTech Connect (OSTI)

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 waste tank (i.e., Tank 41H) to house the process. This process adds monosodium titanate (MST) to a waste tank containing salt solution (and entrained sludge solids). While the process is operating, the solid particles will begin to settle at temperatures up to 45 C. Previous testing has shown that sludge-MST slurries that sit for extended periods (i.e., 1-61 days) at elevated temperatures (i.e., 23-80 C) can develop large shear strengths which could make them difficult to resuspend and remove from the tank. The authors are conducting rheological testing of mixtures containing various concentrations of sludge, MST, and crystalline silicotitanate (CST, ground and unground) that have been aged at different times (i.e., 0 to 13 weeks) and isothermally heated to 30, 45, or 60 C. Additional tests are being conducted that will allow the solid particles to settle at 45 C for 6, 12, and 24 months. The objectives of this task are to determine the impact of settling time and temperature on the shear strength, yield stress, and consistency of the slurries and to determine the impact of radiation on slurry rheology. The testing will determine the relative impact of these parameters rather than predict the shear strength, yield stress, and consistency as a function of feed and operating conditions. This document describes the rheology of slurries containing MST and simulated sludge that sat at elevated temperatures (i.e., up to 60 C) for up to 13 weeks. Rheology of CST-containing slurries, as well as results of the long term settling (6, 12, and 24 months) and irradiation tests (10 and 100 MRad), will be reported later. The conclusions from this analysis follow: (1) MST only slurries that sat at elevated temperatures had larger shear strength, yield stress, and consistency than MST plus sludge slurries that settled at elevated temperatures. (2) The addition of sludge to an MST slurry reduces the shear strength, yield stress, and consistency. (3) The impact of settling time and temperature on slurry rheology is inconclusive at this time. The authors are collecting additional data to attempt to determine the impact of settling time and temperature on slurry shear strength, yield stress, and consistency.

Poirier, M.; Ferguson, C.; Koopman, D.

2011-01-27T23:59:59.000Z

203

DETERMINATION OF THE IMPACT OF GLYCOLATE ON ARP AND MCU OPERATIONS  

SciTech Connect (OSTI)

Savannah River Remediation (SRR) is evaluating an alternate flowsheet for the Defense Waste Processing Facility (DWPF) using glycolic acid as a reductant. An important aspect of the development of the glycolic acid flowsheet is determining if glycolate has any detrimental downstream impacts. Testing was performed to determine if there is any impact to the strontium and actinide sorption by monosodium titanate (MST) and modified monosodium titanate (mMST) or if there is an impact to the cesium removal at the Modular Caustic-Side Solvent Extraction Processing Unit (MCU). Sorption testing was performed using both MST and modified MST (mMST) in the presence of 5,000 and 10,000 ppm (mass basis) glycolate. 10,000 ppm is the estimated bounding concentration expected in the DWPF recycle stream based on DWPF melter flammable gas model results. The presence of glycolate was found to slow the removal of Sr and Pu by MST, while increasing the removal rate of Np. Results indicate that the impact is a kinetic effect, and the overall capacity of the material is not affected. There was no measurable effect on U removal at either glycolate concentration. The slower removal rates for Sr and Pu at 5,000 and 10,000 ppm glycolate could result in lower DF values for these sorbates in ARP based on the current (12 hours) and proposed (8 hours) contact times. For the highest glycolate concentration used in this study, the percentage of Sr removed at 6 hours of contact decreased by 1% and the percentage of Pu removed decreased by nearly 7%. The impact may prove insignificant if the concentration of glycolate that is returned to the tank farm is well below the concentrations tested in this study. The presence of glycolate also decreased the removal rates for all three sorbates (Sr, Pu, and Np) by mMST. Similarly to MST, the results for mMST indicate that the impact is a kinetic effect, and the overall capacity of the material is not affected. The presence of glycolate did not change the lack of affinity of mMST for U. Pre-contacting the MST or mMST with glycolate did not have a significant effect on the performance of the materials when compared to tests having the same concentration of glycolate present in the simulant. These findings suggest that the glycolate is likely influencing removal by sorbate complexation and not by depositing onto or forming a film on the surface of the MST solids. Since the DF values are salt batch dependent, it is not possible to a priori quantify the impacts of glycolate on future processing campaigns. However, we recommend that the impacts of glycolate be evaluated during each salt batch qualification when a final processing concentration is defined, and recommendations can then be made on how to mitigate negative impacts, if needed. Impacts to the performance of the MST or mMST could be mitigated by increasing contact time or increasing sorbent concentrations. In addition to the MST and mMST testing, testing was performed to determine if there is an impact to the cesium removal at Modular Caustic-Side Solvent Extraction Processing Unit (MCU). An Extraction-Scrub-Strip (ESS) test routine was used to simulate cesium removal at the MCU. For this, SRNL performed three ESS tests, using the same basic aqueous waste simulant and solvent. For one test, SRNL added 5,000 ppm (mass basis) of glycolate and added 10,000 ppm of glycolate to a second test. A control test contained no glycolate. The results of all three tests were virtually identical for all the extraction, scrub and strip tests. (A single data point in the 5,000 ppm test is physically impossible and SRNL is currently resolving this obvious error.) At this time, SRNL concludes that the presence of up to 10,000 ppm of glycolate does not affect cesium removal by the current solvent system used in the MCU. Although not tested, the impact of glycolate for the Next Generation Solvent - that replaces BOBCalixC6 with MaxCalix - is expected to be very similar to that for the baseline solvent. Testing is needed to confirm. Additional testing is recommended to both further

Taylor-Pashow, K.; Peters, T.; Shehee, T.

2012-06-04T23:59:59.000Z

204

Photo of the Week: Cold as Ice - Using Titan to Build More Efficient Wind  

Broader source: Energy.gov (indexed) [DOE]

Cold as Ice - Using Titan to Build More Cold as Ice - Using Titan to Build More Efficient Wind Turbines Photo of the Week: Cold as Ice - Using Titan to Build More Efficient Wind Turbines January 10, 2014 - 2:53pm Addthis Wind energy is one of the world's fast-growing energy sources -- and many of the regions that could benefit from wind energy happen to be in cold climates. Since 2005, scientists at GE Global Research have been researching, developing and testing materials in freezing conditions. By developing more efficient materials for wind turbines, researchers can increase turbine efficiency and reduce potential downtime for wind turbines in cold climates. The teams use Oak Ridge National Laboratory's Titan, the world's most powerful supercomputer, to simulate hundreds of water droplets as they freeze, with each droplet containing one million molecules. By simulating and studying how water freezes on a molecular level, scientists are gaining an understanding of how ice forms, which will help them design better, more efficient materials for these colder climates. Pictured here is an illustration of a single water droplet, filled with molecules freezing in slow motion. Learn more about their research here. | Photo/visualization courtesy of M. Matheson, Oak Ridge National Laboratory.

205

INVARIANT MANIFOLDS, DISCRETE MECHANICS, AND TRAJECTORY DESIGN FOR A MISSION TO TITAN  

E-Print Network [OSTI]

denser than that of any other moon in the solar system, Saturn's largest moon Titan is a treasure trove Systems, California Institute of Technology, MC 107-81, Pasadena, California 91125, USA. E-mail: egawlik@caltech.edu. Control and Dynamical Systems, California Institute of Technology, MC 107-81, Pasadena, California 91125

Marsden, Jerrold

206

In situ reduction and oxidation of nickel from solid oxide fuel cells in a Titan ETEM  

E-Print Network [OSTI]

In situ reduction and oxidation of nickel from solid oxide fuel cells in a Titan ETEM A. Faes1. C. Singhal, K. Kendall, High Temperature Solid Oxide Fuel Cell - Fundamentals, Design, Denmark antonin.faes@epfl.ch Keywords: In situ ETEM, nickel oxide, reduction, RedOx, SOFC Solid Oxide Fuel

Dunin-Borkowski, Rafal E.

207

Dielectric properties of MgO-doped compositionally graded multilayer barium strontium titanate films  

E-Print Network [OSTI]

Dielectric properties of MgO-doped compositionally graded multilayer barium strontium titanate shifters and filters operat- ing in the microwave regime.1­4 Ferroelectrics FEs such as barium strontium in monolithic BST films especially with low strontium content, although the addition of MgO causes a reduction

Alpay, S. Pamir

208

Cassini/VIMS hyperspectral observations of the HUYGENS landing site on Titan  

E-Print Network [OSTI]

Titan is one of the primary scientific objectives of the NASA ESA ASI Cassini Huygens mission. Scattering by haze particles in Titan's atmosphere and numerous methane absorptions dramatically veil Titan's surface in the visible range, though it can be studied more easily in some narrow infrared windows. The Visual and Infrared Mapping Spectrometer (VIMS) instrument onboard the Cassini spacecraft successfully imaged its surface in the atmospheric windows, taking hyperspectral images in the range 0.4 5.2 ?m. On 26 October (TA flyby) and 13 December 2004 (TB flyby), the Cassini Huygens mission flew over Titan at an altitude lower than 1200 km at closest approach. We report here on the analysis of VIMS images of the Huygens landing site acquired at TA and TB, with a spatial resolution ranging from 16 to14.4 km/pixel. The pure atmospheric backscattering component is corrected by using both an empirical method and a first-order theoretical model. Both approaches provide consistent results. After the removal of scat...

Rodríguez, S; Sotin, C; Clénet, H; Clark, R N; Buratti, B; Brown, R H; Mccord, T B; Nicholson, P D; Baines, K H; 10.1016/J.PSS.2006.06.016

2009-01-01T23:59:59.000Z

209

CASSINI VIMS AND ALTIMETER JOINT STUDY OF TITAN SURFACE. S. Rodriguez1 , M. Crapeau2  

E-Print Network [OSTI]

CASSINI VIMS AND ALTIMETER JOINT STUDY OF TITAN SURFACE. S. Rodriguez1 , M. Crapeau2 , S. Le.H. Baines4 and the VIMS and RADAR science teams,1 Laboratoire AIM, Centre d'étude de Saclay, DAPNIA of an unclouded low atmos- phere [2,3]. Onboard the Cassini spacecraft, the VIMS (Visual and Infrared Mapping

Paris-Sud XI, Université de

210

Convective plumes and the scarcity of Titan's clouds Ralph D. Lorenz,1  

E-Print Network [OSTI]

-to-pole Hadley cell indicated for Titan by GCMs [e.g., Tokano et al., 1999] is in all probability a purely statistical flow, like the Hadley circulation of the Earth. The Hadley circulation is a statistical flow branch of the Hadley circulation, the air is subsiding and only in a few plumes is there upward motion

Lorenz, Ralph D.

211

Impact of aerosols present in Titan's atmosphere on the CASSINI radar experiment  

E-Print Network [OSTI]

of interest for Titan: liquid methane, liquid mixture of methane-ethane, water ice and light hydrocarbon ices. This chemistry results in the production of a great diversity of hydrocarbons and nitriles in the stratosphere-visible-NIR wavelengths. It is also possible that lighter hydrocarbons or nitriles diffuse downwards and condense

Boyer, Edmond

212

MST: Organizations: Organic Materials  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Adhesive Bonding Adhesive Bonding Composites Encapsulation Materials Characterization Mechanical Testing Molding, Thermoforming, & Compounding Organizations Organic Materials Composite-to-metal adhesive bond Experimental/analytical study of composit-to-metal adhesive bond. The Organic Materials department in the Advanced Manufacturing and Processing Laboratory provides innovative prototype fabrication, full service small lot production, materials technology, processing expertise, and a broad range of organic material characterization and mechanical testing techniques. We encapsulate, we join and bond, we foam, we analyze and image, we build composite structures. We strive to make you, our customers, successful! We partner with you to find the right combination of materials, processing, and fixturing that will result in the highest value

213

New Titan Supercomputer Named Fastest in the World | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

11:04am 11:04am Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - U.S. Secretary of Energy Steven Chu today announced that Titan, a new supercomputer located at the Energy Department's Oak Ridge National Laboratory in Oak Ridge, Tennessee, has been named the world's most powerful according to the TOP500 list of the world's fastest supercomputers. Ten times more powerful than its predecessor, the Jaguar system, Titan will provide unprecedented power to accelerate scientific discoveries using technologies first developed for video game systems like Xbox 360 and PlayStation 3. The Department now has five systems out of the fastest 20 in the world, with Sequoia at Lawrence Livermore National Laboratory in Livermore, California, in second place; Mira at Argonne National Laboratory in

214

New Titan Supercomputer Named Fastest in the World | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

4:37pm 4:37pm Addthis Oak Ridge National Laboratory is home to Titan, the world’s most powerful supercomputer for open science with a theoretical peak performance exceeding 20 petaflops (quadrillion calculations per second). That kind of computational capability—almost unimaginable—is on par with each of the world’s 7 billion people being able to carry out 3 million calculations per second. Oak Ridge National Laboratory is home to Titan, the world's most powerful supercomputer for open science with a theoretical peak performance exceeding 20 petaflops (quadrillion calculations per second). That kind of computational capability-almost unimaginable-is on par with each of the world's 7 billion people being able to carry out 3 million calculations

215

Thermal tunability in terahertz metamaterials fabricated on strontium titanate single crystal substrates  

E-Print Network [OSTI]

We report an experimental demonstration of thermal tuning of resonance frequency in a planar terahertz metamaterial consisting of a gold split-ring resonator array fabricated on a bulk single crystal strontium titanate (SrTiO3) substrate. Cooling the metamaterial starting from 409 K down to 150 K causes about 50% shift in resonance frequency as compare to its room temperature resonance, and there is very little variation in resonance strength. The resonance shift is due to the temperature-dependent refractive index (or the dielectric constant) of the strontium titanate. The experiment opens up avenues for designing tunable terahertz devices by exploiting the temperature sensitive characteristic of high dielectric constant substrates and complex metal oxide materials.

Singh, Ranjan; Jia, Q X; Taylor, Antoinette J; Chen, Hou-Tong

2011-01-01T23:59:59.000Z

216

I/O Router Placement and Fine-Grained Routing on Titan to Support Spider II  

SciTech Connect (OSTI)

The Oak Ridge Leadership Computing Facility (OLCF) introduced the concept of Fine-Grained Routing in 2008 to improve I/O performance between the Jaguar supercomputer and Spider, OLCF s center-wide Lustre file system. Fine-grained routing organizes I/O paths to minimize congestion. Jaguar has since been upgraded to Titan, providing more than a ten-fold improvement in peak performance. To support the center s increased computational capacity and I/O demand, the Spider file system has been replaced with Spider II. Building on the lessons learned from Spider, an improved method for placing LNET routers was developed and implemented for Spider II. The fine-grained routing scripts and configuration have been updated to provide additional optimizations and better match the system setup. This paper presents a brief history of fine-grained routing at OLCF, an introduction to the architectures of Titan and Spider II, methods for placing routers in Titan, and details about the fine-grained routing configuration.

Ezell, Matthew A [ORNL] [ORNL; Dillow, David [None] [None; Oral, H Sarp [ORNL] [ORNL; Wang, Feiyi [ORNL] [ORNL; Tiwari, Devesh [ORNL] [ORNL; Maxwell, Don E [ORNL] [ORNL; Leverman, Dustin B [ORNL] [ORNL; Hill, Jason J [ORNL] [ORNL

2014-01-01T23:59:59.000Z

217

Infrared spectroscopic, x-ray, and nanoscale characterization of strontium titanate thin films  

SciTech Connect (OSTI)

Attenuated total reflectance (ATR) measurements were performed using Fourier transform infrared (FTIR) spectroscopy in the ATR mode with a thallium iodobromide (KRS-5) crystal to measure the frequencies of the v{sub 3} and v{sub 4} phonon absorption bands in thin Sr titanate films deposited on single-crystal Y-Ba Cu oxide (YBCO), La aluminate, Mg oxide, and Sr titanate substrates. The KRS-5 crystal enabled FTIR-ATR measurements at frequencies above 400 cm{sup -1}. Atomic force microscopy (AFM) and x-ray diffraction (XRD) measurements were also made to further characterize the films. The measurements were repeated on single-crystal specimens of Sr titanate and the substrates for comparison. Softening in the frequency of the v{sub 4} transverse optical phonon in the lattice-mismatched films below the established value of 544 cm{sup -1} is indicative of the highly textured, polycrystalline ceramic nature of the films and is consistent with the XRD and AFM results.

Webb, J.D.; Moutinho, H.R.; Kazmerski, L.L. [National Renewable Energy Lab., Golden, CO (United States); Mueller, C.H.; Rivkin, T.V.; Treece, R.E. [Superconducting Core Technologies, Inc., Golden, CO (United States); Dalberth, M.; Rogers, C.T. [Colorado Univ., Boulder, CO (United States). Dept. of Physics

1996-06-01T23:59:59.000Z

218

Facile synthesis of mesoporous lithium titanate spheres for high rate lithium-ion batteries  

Science Journals Connector (OSTI)

Lithium titanate is synthesized from titanium isopropoxide and lithium acetate solution under hydrothermal environment and calcinations. Introducing acidized carbon black during synthesis can produce mesoporous Li4Ti5O12. The crystalline structure and morphological observation of the as-synthesized mesoporous Li4Ti5O12 are characterized by X-ray diffraction (XRD) and scanning electron microscopy, respectively. The mesoporous structure can be directly observed through BEI images of the cross-section sample. Besides, N2 adsorption/desorption isotherm also displays a hysteresis loop, implying the beneficial evidence of mesoporous structure. The pore size distribution of mesoporous lithium titanate evaluated by BJH model is narrow, and the average size of voids is around 4 nm. It is demonstrated that the electrochemical performance is significantly improved by the mesoporous structure. The mesoporous lithium titanate exhibits a stable capacity of 140 mAhg?1 at 0.5 C. Besides, the reversible capacity at 30 C remains over half of that at 0.5 C. The superior C-rate performance is associated with the mesoporous structure, facilitating lithium transportation ability during cycling.

Yu-Sheng Lin; Jenq-Gong Duh

2011-01-01T23:59:59.000Z

219

ACTINIDE REMOVAL PROCESS SAMPLE ANALYSIS, CHEMICAL MODELING, AND FILTRATION EVALUATION  

SciTech Connect (OSTI)

Filtration within the Actinide Removal Process (ARP) currently limits the throughput in interim salt processing at the Savannah River Site. In this process, batches of salt solution with Monosodium Titanate (MST) sorbent are concentrated by crossflow filtration. The filtrate is subsequently processed to remove cesium in the Modular Caustic Side Solvent Extraction Unit (MCU) followed by disposal in saltstone grout. The concentrated MST slurry is washed and sent to the Defense Waste Processing Facility (DWPF) for vitrification. During recent ARP processing, there has been a degradation of filter performance manifested as the inability to maintain high filtrate flux throughout a multi-batch cycle. The objectives of this effort were to characterize the feed streams, to determine if solids (in addition to MST) are precipitating and causing the degraded performance of the filters, and to assess the particle size and rheological data to address potential filtration impacts. Equilibrium modelling with OLI Analyzer{sup TM} and OLI ESP{sup TM} was performed to determine chemical components at risk of precipitation and to simulate the ARP process. The performance of ARP filtration was evaluated to review potential causes of the observed filter behavior. Task activities for this study included extensive physical and chemical analysis of samples from the Late Wash Pump Tank (LWPT) and the Late Wash Hold Tank (LWHT) within ARP as well as samples of the tank farm feed from Tank 49H. The samples from the LWPT and LWHT were obtained from several stages of processing of Salt Batch 6D, Cycle 6, Batch 16.

Martino, C.; Herman, D.; Pike, J.; Peters, T.

2014-06-05T23:59:59.000Z

220

SCALING SOLID RESUSPENSION AND SORPTION FOR THE SMALL COLUMN ION EXCHANGE PROCESSING TANK  

SciTech Connect (OSTI)

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 scaling the results from the pilot-scale tank to Tank 41H, the authors took the following approach. They reviewed the technical literature for methods to scale mixing with jets and suspension of solid particles with jets, and the technical literature on mass transfer from a liquid to a solid particle to develop approaches to scaling the test data. SRNL assembled a team of internal experts to review the scaling approach and to identify alternative approaches that should be considered.

Poirier, M.; Qureshi, Z.

2010-12-14T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Titan at the time of the Cassini spacecraft first flyby: a prediction for its origin, bulk chemical composition and internal physical structure  

E-Print Network [OSTI]

I report the results of a new set of calculations for the gravitational contraction of the proto-solar cloud to quantify the idea that Titan may be a captured moon of Saturn (Prentice 1981, 1984). It is proposed that Titan initially condensed as a secondary embryo in the same proto-solar gas ring from which the central solid core and gaseous envelope of Saturn were acquired. At the orbit of Saturn, the bulk chemical constituents of the condensate are rock (mass fraction 0.494), water ice (0.474), and graphite (0.032). The mean density is 1523 kg/m^3. Structural models for a frozen Titan yield a mean density of 2095 kg/m^3 (chemically homogeneous case) and 1904 kg/m^3 (fully differentiated 2-zone case). The agreement to one percent of the latter value with the observed mean density suggests that Titan is indeed a fully differentiated satellite. The value of C/MR^2 for this model is 0.316. It is predicted that Titan has no internal ocean or induced magnetic field but it may possess a small native dipole field of magnitude 2 x 10^11 Tesla m^3 due to thermoremanent magnetization fed by the ancient magnetic field of Saturn. Capture of Titan was achieved by gas drag at the edge of the proto-Saturnian envelope at a time when that cloud had a radius close to the present orbital size of Titan. Collisional drag was also probably an important agent in securing the capture of Titan. Perhaps Hyperion is the shattered remnant of a pre-existing native moon of Saturn that was destroyed on the arrival of Titan. Titan should thus have much the same appearance as Triton, being nearly smooth, crater-free and streaked with elemental carbon (Prentice 2004a).

A. J. R. Prentice

2006-02-23T23:59:59.000Z

222

Fluidizable zinc titanate materials with high chemical reactivity and attrition resistance  

DOE Patents [OSTI]

Highly durable and chemically reactive zinc titanate materials are prepared in a particle size range of 50 to 400 .mu.m suitable for a fluidized-bed reactor for removing reduced sulfur species in a gaseous form by granulating a mixture of fine zinc oxide and titanium oxide with inorganic and organic binders and by optional additions of small amounts of activators such as CoO and MoO.sub.3 ; and then indurating it at 800.degree. to 900.degree. C. for a time sufficient to produce attrition-resistant granules.

Gupta, Raghubir P. (Durham, NC); Gangwal, Santosh K. (Durham, NC); Jain, Suresh C. (Morgantown, WV)

1993-01-01T23:59:59.000Z

223

Impact of vacancy clusters on characteristic resistance change of nonstoichiometric strontium titanate nano-film  

SciTech Connect (OSTI)

In practical applications to bipolar resistance switching (BRS) memory devices with enhanced performance and high-scalability, oxide materials are commonly fabricated to highly nonstoichiometric and nanometer scale films. In this study, we fabricated ultrathin strontium titanate film, which shows two types of BRS behavior. By using micro-beam X-ray photoemission spectroscopy, the changes of core-level spectra depending on the resistance states are spatially resolved. Experimental and calculated results demonstrated that the fundamental switching mechanism in the two types of BRS is originated from the migration of anion and cation vacancies and the formation of insulating vacancy clusters near vicinity of the interface.

Su Kim, Yong, E-mail: ysukim@phya.snu.ac.kr; Jee Yoon, Moon; Hee Sohn, Chang; Buhm Lee, Shin; Lee, Daesu; Chul Jeon, Byung; Keun Yoo, Hyang; Won Noh, Tae [CFI-CES, IBS and Department of Physics and Astronomy, Seoul National University, Seoul 151-747 (Korea, Republic of); Kim, Jiyeon; Yu, Jaejun [CSCMR, Department of Physics and Astronomy, Seoul National University, Seoul 151-747 (Korea, Republic of); Bostwick, Aaron; Rotenberg, Eli [Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Don Bu, Sang [Department of Physics, Chonbuk National University, Jeonju 561-756 (Korea, Republic of); Simon Mun, Bongjin [Department of Physics and Photon Science, School of Physics and Chemistry, Ertl Center for Electrochemistry and Catalyst, Gwangju Institute of Science and Technology, Gwangju 500-712 (Korea, Republic of)

2014-01-06T23:59:59.000Z

224

Very Stable Electron Field Emission From Strontium Titanate Coated Carbon Nanotube Matrices With Low Emission Thresholds  

SciTech Connect (OSTI)

PMMA-STO-CNT matrices were created by opened-tip vertically-aligned multiwalled carbon nanotubes (VA-MWCNTs) with conformal coating of strontium titanate and Poly(methyl methacrylate). Emission threshold of 0.8 V/?m was demonstrated, about five-fold lower than that of the as-grown VAMWCNTs. Theoretical simulation and modeling suggest that PMMA-STO-CNT matrices have suppressed screening effects and Coulombs’ repulsion forces between electrons in adjacent CNTs, leading to low emission threshold, high emission density, and prolong emission stability. These findings are important for practical application of VA-MWCNTs in field emission devices.

Pandey, Archana; Prasad, Abhishek; Moscatello, Jason; Engelhard, Mark H.; Wang, Chong M.; Yap, Yoke K.

2013-01-22T23:59:59.000Z

225

A TRANSMISSION SPECTRUM OF TITAN'S NORTH POLAR ATMOSPHERE FROM A SPECULAR REFLECTION OF THE SUN  

SciTech Connect (OSTI)

Cassini/VIMS T85 observations of a solar specular reflection off of Kivu Lacus (87.°4N 241.°1E) provide an empirical transmission spectrum of Titan's atmosphere. Because this observation was acquired from short range (33,000 km), its intensity makes it visible within the 2.0, 2.7, and 2.8 ?m atmospheric windows in addition to the 5 ?m window where all previous specular reflections have been seen. The resulting measurement of the total one-way normal atmospheric optical depth (corresponding to haze scattering plus haze and gas absorption) provides strong empirical constraints on radiative transfer models. Using those models, we find that the total haze column abundance in our observation is 20% higher than the Huygens equatorial value. Ours is the first measurement in the 2-5 ?m wavelength range that probes all the way to the surface in Titan's arctic, where the vast majority of surface liquids are located. The specular technique complements other probes of atmospheric properties such as solar occultations and the direct measurements from Huygens. In breaking the degeneracy between surface and atmospheric absorptions, our measured optical depths will help to drive future calculations of deconvolved surface albedo spectra.

Barnes, Jason W. [Department of Physics, University of Idaho, Moscow, ID 83844-0903 (United States); Clark, Roger N. [United States Geological Survey, Denver, CO 80225 (United States); Sotin, Christophe; Buratti, Bonnie J. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, CA 91109 (United States); Ádámkovics, Máté [Department of Astronomy, University of California Berkeley, Berkeley, CA 94720-3411 (United States); Appéré, Thomas; Rodriguez, Sebastien [Laboratoire AIM, Université Paris Diderot, Paris 7/CNRS/CEA-Saclay, DSM-IRFU/SAp, F-91191 Gif sur Yvette (France); Soderblom, Jason M. [Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139-4307 (United States); Brown, Robert H. [Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721 (United States); Baines, Kevin H. [Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI, 53706 (United States); Le Mouélic, Stéphane [Laboratoire de Planétologie et Géodynamique, Université de Nantes, F-44322 Nantes (France); Nicholson, Philip D., E-mail: jwbarnes@uidaho.edu [Department of Astronomy, Cornell University, Ithaca, NY 14853 (United States)

2013-11-10T23:59:59.000Z

226

Titan's past and future: 3D modeling of a pure nitrogen atmosphere and geological implications  

E-Print Network [OSTI]

Several clues indicate that Titan's atmosphere has been depleted in methane during some period of its history, possibly as recently as 0.5-1 billion years ago. It could also happen in the future. Under these conditions, the atmosphere becomes only composed of nitrogen with a range of temperature and pressure allowing liquid or solid nitrogen to condense. Here, we explore these exotic climates throughout Titan's history with a 3D Global Climate Model (GCM) including the nitrogen cycle and the radiative effect of nitrogen clouds. We show that for the last billion years, only small polar nitrogen lakes should have formed. Yet, before 1 Ga, a significant part of the atmosphere could have condensed, forming deep nitrogen polar seas, which could have flowed and flooded the equatorial regions. Alternatively, nitrogen could be frozen on the surface like on Triton, but this would require an initial surface albedo higher than 0.65 at 4 Ga. Such a state could be stable even today if nitrogen ice albedo is higher than th...

Charnay, Benjamin; Tobie, Gabriel; Sotin, Christophe; Wordsworth, Robin

2014-01-01T23:59:59.000Z

227

Interactions between Lead–Zirconate Titanate, Polyacrylic Acid, and Polyvinyl Butyral in Ethanol and Their Influence on Electrophoretic Deposition Behavior  

Science Journals Connector (OSTI)

Interactions between Lead–Zirconate Titanate, Polyacrylic Acid, and Polyvinyl Butyral in Ethanol and Their Influence on Electrophoretic Deposition Behavior ... Anionic polyelectrolytes, such as a poly(acrylic acid) (PAA), are widely used as the dispersants of ceramic powder in aqueous media. ...

Danjela Kuscer; Tina Bakari?; Bojan Kozlev?ar; Marija Kosec

2012-10-01T23:59:59.000Z

228

FIRST STEP IN THEORETICAL APPROACH IN STUDY OF MARS AND TITAN ATMOSPHERES WITH AN INDUCTIVELY COUPLED PLASMA TORCH  

E-Print Network [OSTI]

with several ESA test cases. One concerns the ICP torch at atmospheric pressure. The plasma can be consideredFIRST STEP IN THEORETICAL APPROACH IN STUDY OF MARS AND TITAN ATMOSPHERES WITH AN INDUCTIVELY COUPLED PLASMA TORCH André P.(1) , Clain S. (2) , Dudeck M.(3) , Izrar B.(4) , Rochette D.(1) , Touzani R

229

AlGaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors using barium strontium titanate  

E-Print Network [OSTI]

AlGaN/GaN metal-oxide-semiconductor heterostructure field-effect transistors using barium strontium-effect transistors have been formed by incorporating barium strontium titanate (BST) deposited by rf magnetron in increased leakage. Due to its large dielectric constant, barium strontium ti- tanate [Ba1-xSrxTiO3, (BST

York, Robert A.

230

The role of thermally-induced internal stresses on the tunability of textured barium strontium titanate films  

E-Print Network [OSTI]

The role of thermally-induced internal stresses on the tunability of textured barium strontium) The tunability of highly textured thin films of barium strontium titanate (Ba0.5Sr0.5TiO3, BST) is analyzed

Alpay, S. Pamir

231

Mapping and interpretation of Sinlap crater on Titan using Cassini VIMS and Stphane Le Moulic1,2  

E-Print Network [OSTI]

1 Mapping and interpretation of Sinlap crater on Titan using Cassini VIMS and RADAR data Stéphane- Huygens mission. Among these, Sinlap is the only one that has been observed both by the RADAR and VIMS in VIMS false color composites of band ratios in the Sinlap area, suggesting compositional heterogeneities

Paris-Sud XI, Université de

232

Infrared absorption of hydrogen-related defects in strontium titanate M. C. Tarun and M. D. McCluskeya)  

E-Print Network [OSTI]

in perovskite oxides, an important issue in fuel cells.16 In as- grown SrTiO3, isolated hydrogen forms a bondInfrared absorption of hydrogen-related defects in strontium titanate M. C. Tarun and M. D. Mc 2011) Hydrogen has a significant impact on the structural and electronic properties of metals

McCluskey, Matthew

233

Hypervelocity Impact Effect of Molecules from Enceladus’ Plume and Titan’s Upper Atmosphere on NASA’s Cassini Spectrometer from Reactive Dynamics Simulation  

Science Journals Connector (OSTI)

The NASA/ESA Cassini probe of Saturn analyzed the molecular composition of plumes emanating from one of its moons, Enceladus, and the upper atmosphere of another, Titan. However, interpretation of this data is complicated by the hypervelocity (HV) flybys of up to ?18??km/sec that cause substantial molecular fragmentation. To interpret this data we use quantum mechanical based reactive force fields to simulate the HV impact of various molecular species and ice clathrates on oxidized titanium surfaces mimicking those in Cassini’s neutral and ion mass spectrometer (INMS). The predicted velocity dependent fragmentation patterns and composition mixing ratios agree with INMS data providing the means for identifying the molecules in the plume. We used our simulations to predict the surface damage from the HV impacts on the INMS interior walls, which we suggest acts as a titanium sublimation pump that could alter the instrument’s readings. These results show how the theory can identify chemical events from hypervelocity impacts in space plumes and atmospheres, providing in turn clues to the internal structure of the corresponding sources (e.g., Enceladus). This may be valuable in steering modifications in future missions.

Andres Jaramillo-Botero, Qi An, Mu-Jeng Cheng, William A. Goddard, III, Luther W. Beegle, and Robert Hodyss

2012-11-21T23:59:59.000Z

234

Titan Propels GE Wind Turbine Research into New Territory | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Features Features 2014 2013 2012 2011 2010 News Home | ORNL | News | Features | 2013 SHARE Titan Propels GE Wind Turbine Research into New Territory Simulations of freezing water can help engineers design better blades GE simulated hundreds of water droplets, each including one million molecules. Simulations accelerated at least 200 times over pre-GPU estimates permitting GE to study the nucleation of individual ice molecules.Vizualization by M. Matheson (ORNL) GE simulated hundreds of water droplets, each including one million molecules. Simulations accelerated at least 200 times over pre-GPU estimates permitting GE to study the nucleation of individual ice molecules.Vizualization by M. Matheson (ORNL) (hi-res image) The amount of global electricity supplied by wind, the world's fastest

235

Role of Amorphous Boundary Layer in Enhancing Ionic Conductivity of Lithium–lanthanum–titanate Electrolyte  

SciTech Connect (OSTI)

The low ionic conductivity is a bottleneck of the inorganic solid state electrolyte used for lithium ion battery. In ceramic electrolytes, grain boundary usually dominates the total conductivity. In order to improve the grain boundary effect, an amorphous silica layer is introduced into grain boundary of ceramic electrolytes based on lithium-lanthanum-titanate, as evidenced by electron microscopy. The results showed that the total ionic conductivity could be to be enhanced over 1 x 10{sup -4} S/cm at room temperature. The reasons can be attributed to removing the anisotropy of outer-shell of grains, supplement of lithium ions in various sites in grain boundary and close bindings among grains by the amorphous boundary layer among grains.

Mei, A.; Wang, X.; Lana, J.-L.; Fenga, Y.-C.; Genga, H.-X.; Lina, Y.-H.; Nana, C.-W.

2010-03-01T23:59:59.000Z

236

Blocking effect of crystal–glass interface in lanthanum doped barium strontium titanate glass–ceramics  

SciTech Connect (OSTI)

Graphical abstract: The blocking effect of the crystal–glass interface on the carrier transport behavior in the lanthanum doped barium strontium titanate glass–ceramics: preparation and characterization. - Highlights: • La{sub 2}O{sub 3} addition promotes the crystallization of the major crystalline phase. • The Z? and M? peaks exist a significant mismatch for 0.5 mol% La{sub 2}O{sub 3} addition. • The Z? and M? peaks separate obviously for 1.0 mol% La{sub 2}O{sub 3} addition. • Crystallite impedance decreases while crystal–glass interface impedance increases. • La{sub 2}O{sub 3} addition increases blocking factor of the crystal–glass interface. - Abstract: The microstructures and dielectric properties in La{sub 2}O{sub 3}-doped barium strontium titanate glass–ceramics have been investigated by scanning electron microscopy (SEM) and impedance spectroscopy. SEM analysis indicated that La{sub 2}O{sub 3} additive decreases the average crystallite size. Impedance spectroscopy revealed that the positions of Z? and M? peaks are close for undoped samples. When La{sub 2}O{sub 3} concentration is 0.5 mol%, the Z? and M? peaks show a significant mismatch. Furthermore, these peaks separate obviously for 1.0 mol% La{sub 2}O{sub 3} addition. With increasing La{sub 2}O{sub 3} concentration, the contribution of the crystallite impedance becomes smaller, while the contribution of the crystal–glass interface impedance becomes larger. More interestingly, it was found that La{sub 2}O{sub 3} additive increases blocking factor of the crystal–glass interface in the temperature range of 250–450 °C. This may be attributed to a decrease of activation energy of the crystallite and an increase of the crystal–glass interface area.

Wang, Xiangrong [Beijing Fine Ceramics Laboratory, State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China); Zhang, Yong, E-mail: yzhang@tsinghua.edu.cn [Beijing Fine Ceramics Laboratory, State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China); Baturin, Ivan [Ferroelectric Laboratory, Institute of Natural Science, Ural Federal University, Ekaterinburg 620000 (Russian Federation); Liang, Tongxiang [Beijing Fine Ceramics Laboratory, State Key Laboratory of New Ceramics and Fine Processing, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084 (China)

2013-10-15T23:59:59.000Z

237

CLOUD AND HAZE IN THE WINTER POLAR REGION OF TITAN OBSERVED WITH VISUAL AND INFRARED MAPPING SPECTROMETER ON BOARD CASSINI  

SciTech Connect (OSTI)

A large cloud in the north polar region of Titan was first observed by the Visual and Infrared Mapping Spectrometer (VIMS) in 2005 and then in 2006. This cloud, confined beyond the latitude 62 Degree-Sign N, is surrounded by a mixture of aerosol and mist probably lying in the low stratosphere and troposphere. Subsequent images of this region of Titan show a gradual vanishing of this cloud which was reported previously. In this paper, we characterize the physical properties of this cloud, haze, and mist as well as their time evolutions. We note several details on the images such as a secondary cloud above the main cloud and latitudes beyond 70 Degree-Sign N. We also show that the cloud disappearance leaves the polar region poorly loaded in aerosols, yielding an annular zone of aerosols between 50 Degree-Sign N and 65 Degree-Sign N. Our analysis suggests that this structure observed by VIMS in the near-IR is an annular structure observed by ISS on board Voyager one Titan year ago in 1980.

Rannou, P. [GSMA, UMR CNRS 7331, Universite de Reims Champagne-Ardenne (France); Le Mouelic, S. [LPGN, UMR CNRS 6112, Universite de Nantes (France); Sotin, C. [JPL, California Institute of Technology, PA (United States); Brown, R. H., E-mail: pascal.rannou@univ-reims.fr [LPL, University of Arizona, Tucson, AZ (United States)

2012-03-20T23:59:59.000Z

238

Los Alamos: MST: MST-6: EML: Electron Microscopy Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Strata DB235 FIB/SEM (Focused Ion Beam/High Reolution Scanning Electron Microscope) Strata DB235 FIB/SEM (Focused Ion Beam/High Reolution Scanning Electron Microscope) FEI Strata DB235 FIB/SEM (Focused Ion Beam/High Reolution Scanning Electron Microscope) This is a versatile field emission scanning electron microscope integrated with a focused ion beam column that is used for sophisticated SEM and TEM sample preparation, micromachining, and ultrahigh resolution SEM imaging. The microscope is also equipped for x-ray microanalysis and crystallographic orientation imaging. Microscope consists of a Hexalens SFEG electron beam column, and a Magnum ion beam column with a gallium liquid metal ion source. Imaging with both secondary electrons and ions. Digital image acquisition. Small, stable, high brightness Schottky based field emission electron source provides 1.5 nm resolution at 30 kV. Three electron beam lens modes - normal imaging, high resolution imaging, and EDS imaging.

239

 

Broader source: Energy.gov (indexed) [DOE]

The Modular Salt Processing (MSP) Project seeks to deploy equipment to remove the Cs, Sr, and select actinides from the high level waste salt The Modular Salt Processing (MSP) Project seeks to deploy equipment to remove the Cs, Sr, and select actinides from the high level waste salt solutions using existing waste tanks for shielding. This process will be tested in Engineering Development Laboratory (EDL) using non-radioactive simulants. EDL will use 1200 gallons of Simplified SRS Salt Solution purchased from formulator and 60 gallons of Sludge Batch 6 (non-RCRA), 50 gallons from supplier and up to 10 gallons by EDL, to simulate the waste tank solution. In addition, monosodium titanate solution (MST) will be used to sorb Sr and crystalline silicotitanate (CST) will be used to remove Cs. A series of tests will be performed in EDL to determine the type of pump system, number of pumps, and size of pumps needed to mix the contents of an approximate one tenth scale clear tank to be located in EDL. Studies will also

240

 

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Modular Salt Processing (MSP) Project seeks to deploy equipment to remove the Cs, Sr, and select actinides from the high level waste salt The Modular Salt Processing (MSP) Project seeks to deploy equipment to remove the Cs, Sr, and select actinides from the high level waste salt solutions using existing waste tanks for shielding. This process will be tested in Engineering Development Laboratory (EDL) using non-radioactive simulants. EDL will use 1200 gallons of Simplified SRS Salt Solution purchased from formulator and 60 gallons of Sludge Batch 6 (non-RCRA), 50 gallons from supplier and up to 10 gallons by EDL, to simulate the waste tank solution. In addition, monosodium titanate solution (MST) will be used to sorb Sr and crystalline silicotitanate (CST) will be used to remove Cs. A series of tests will be performed in EDL to determine the type of pump system, number of pumps, and size of pumps needed to mix the contents of an approximate one tenth scale clear tank to be located in EDL. Studies will also

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
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241

SAMPLE RESULTS FROM THE INTEGRATED SALT DISPOSITION PROGRAM MACROBATCH 4 TANK 21H QUALIFICATION SAMPLES  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) analyzed samples from Tank 21H to qualify them for use in the Integrated Salt Disposition Program (ISDP) Batch 4 processing. All sample results agree with expectations based on prior analyses where available. No issues with the projected Salt Batch 4 strategy are identified. This revision includes additional data points that were not available in the original issue of the document, such as additional plutonium results, the results of the monosodium titanate (MST) sorption test and the extraction, scrub strip (ESS) test. This report covers the revision to the Tank 21H qualification sample results for Macrobatch (Salt Batch) 4 of the Integrated Salt Disposition Program (ISDP). A previous document covers initial characterization which includes results for a number of non-radiological analytes. These results were used to perform aluminum solubility modeling to determine the hydroxide needs for Salt Batch 4 to prevent the precipitation of solids. Sodium hydroxide was then added to Tank 21 and additional samples were pulled for the analyses discussed in this report. This work was specified by Task Technical Request and by Task Technical and Quality Assurance Plan (TTQAP).

Peters, T.; Fink, S.

2011-06-22T23:59:59.000Z

242

MST: Organizations: Precision Meso Manufacturing  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Precision Meso Manufacturing Precision Meso Manufacturing Many engineers and product realization teams at Sandia National Laboratories are currently engaged in efforts to create revolutionary national security products that feature unprecedented functionality in ever-smaller, more portable configurations. In the course of development, the Sandia technology community has realized the need for manufacturing capabilities that expand upon what traditional microfabrication provides. The term “meso,” derived from the Greek mesos, meaning “intermediate” or “in the middle,” describes operations on a length scale that typically ranges from hundreds of micrometers to one centimeter. Meso Manufacturing involves a suite of innovative fabrication and metrology tools that compliment each other to make these products a reality. The Meso

243

Programmable Power Supply for MST...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

voltage of no more than 450 V. A commercial MOSFET gate driver with Undervoltage Lockout controls the shorting MOSFETS; when power to the gate board is removed, the...

244

In-trap decay spectroscopy with the TITAN facility at TRIUMF  

E-Print Network [OSTI]

A novel in-trap decay spectroscopy facility has been developed and constructed for use with TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). This apparatus consists of an open-access spectroscopy ion-trap, which is surrounded radially with up to seven low-energy planar Si(Li) detectors. The ion-trap environment allows for the detection of low-energy photons by providing backing-free storage of the radioactive ions, while guiding decay particles from the trap center via the strong (up to 6 T) magnetic field. Excellent ion confinement is also facilitated by the use of an intense electron beam which provides storage times of minutes or more without ion loss. These advantages, along with careful monitoring and control, provide a significant increase in sensitivity for the detection of X-rays from the electron-capture process. The design, development, and commissioning of this apparatus are presented and the future of the device and experimental technique are discussed.

Leach, K G; Lennarz, A; Brunner, T; Gallant, A T; Good, M; Klawitter, R; Kwiatkowski, A A; Ma, T; Macdonald, T D; Seeraji, S; Simon, M C; Andreoiu, C; Dilling, J; Frekers, D

2014-01-01T23:59:59.000Z

245

In-trap decay spectroscopy with the TITAN facility at TRIUMF  

E-Print Network [OSTI]

A novel in-trap decay spectroscopy facility has been developed and constructed for use with TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN). This apparatus consists of an open-access spectroscopy ion-trap, which is surrounded radially with up to seven low-energy planar Si(Li) detectors. The ion-trap environment allows for the detection of low-energy photons by providing backing-free storage of the radioactive ions, while guiding decay particles from the trap center via the strong (up to 6 T) magnetic field. Excellent ion confinement is also facilitated by the use of an intense electron beam which provides storage times of minutes or more without ion loss. These advantages, along with careful monitoring and control, provide a significant increase in sensitivity for the detection of X-rays from the electron-capture process. The design, development, and commissioning of this apparatus are presented and the future of the device and experimental technique are discussed.

K. G. Leach; A. Grossheim; A. Lennarz; T. Brunner; J. R. Crespo López-Urrutia; A. T. Gallant; M. Good; R. Klawitter; A. A. Kwiatkowski; T. Ma; T. D. Macdonald; S. Seeraji; M. C. Simon; C. Andreoiu; J. Dilling; D. Frekers

2014-05-28T23:59:59.000Z

246

Pyroelectric response of lead zirconate titanate thin films on silicon: Effect of thermal stresses  

SciTech Connect (OSTI)

Ferroelectric lead zirconate titanate [Pb(Zr{sub x}Ti{sub 1-x}O){sub 3}, (PZT x:1-x)] has received considerable interest for applications related to uncooled infrared devices due to its large pyroelectric figures of merit near room temperature, and the fact that such devices are inherently ac coupled, allowing for simplified image post processing. For ferroelectric films made by industry-standard deposition techniques, stresses develop in the PZT layer upon cooling from the processing/growth temperature due to thermal mismatch between the film and the substrate. In this study, we use a non-linear thermodynamic model to investigate the pyroelectric properties of polycrystalline PZT thin films for five different compositions (PZT 40:60, PZT 30:70, PZT 20:80, PZT 10:90, PZT 0:100) on silicon as a function of processing temperature (25–800?°C). It is shown that the in-plane thermal stresses in PZT thin films alter the out-of-plane polarization and the ferroelectric phase transformation temperature, with profound effect on the pyroelectric properties. PZT 30:70 is found to have the largest pyroelectric coefficient (0.042??C cm{sup ?2}?°C{sup ?1}, comparable to bulk values) at a growth temperature of 550?°C; typical to what is currently used for many deposition processes. Our results indicate that it is possible to optimize the pyroelectric response of PZT thin films by adjusting the Ti composition and the processing temperature, thereby, enabling the tailoring of material properties for optimization relative to a specific deposition process.

Kesim, M. T.; Zhang, J.; Alpay, S. P. [Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269 (United States); Trolier-McKinstry, S. [Department of Materials Science and Engineering and Materials Research Institute, Pennsylvania State University, Pennsylvania 16802 (United States); Mantese, J. V. [United Technologies Research Center, East Hartford, Connecticut 06118 (United States); Whatmore, R. W. [Tyndall National Institute, Lee Maltings, Dyke Parade, Cork City, County Cork (Ireland)

2013-11-28T23:59:59.000Z

247

A statistical model approximation for perovskite solid-solutions: a Raman study of lead-zirconate- titanate single crystal  

SciTech Connect (OSTI)

Lead titanate (PbTiO3) is a classical example of a ferroelectric perovskite oxide illustrating a displacive phase transition accompanied by a softening of a symmetry-breaking mode. The underlying assumption justifying the soft-mode theory is that the crystal is macroscopically sufficiently uniform so that a meaningful free energy function can be formed. In contrast to PbTiO3, experimental studies show that the phase transition behaviour of lead-zirconate-titanate solid solution (PZT) is far more subtle. Most of the studies on the PZT system have been dedicated to ceramic or powder samples, in which case an unambiguous soft-mode study is not possible, as modes with different symmetries appear together. Our Raman scattering study on titanium-rich PZT single crystal shows that the phase transitions in PZT cannot be described by a simple soft-mode theory. In strong contrast to PbTiO3, splitting of transverse E-symmetry modes reveals that there are different locally-ordered regions. The role of crystal defects, random distribution of Ti and Zr at the B- cation site and Pb ions shifted away from their ideal positions, dictates the phase transition mechanism. A statistical model explaining the observed peak splitting and phase transformation to a complex state with spatially varying local order in the vicinity of the morphotropic phase boundary is given.

Frantti, Johannes [Aalto University, Finland; Fujioka, Y [Aalto University, Finland; Puretzky, Alexander A [ORNL; Xie, Y [Simon Fraser University, Canada; Glazer, A [Clarendon Laboratory, Department of Physics, University of Oxford

2013-01-01T23:59:59.000Z

248

Self-irradiation damage of a curium-doped titanate ceramic containing sodium-rich high level nuclear waste  

SciTech Connect (OSTI)

This paper reports on the polyphase titanate ceramic containing sodium-rich simulated high-level nuclear waste doped with 0.69 wt% of {sup 244}Cm to accelerate long-term self-irradiation due to {alpha} decays. {alpha} autoradiography showed that {alpha} emissions were almost uniformly distributed throughout the curium-doped samples on a {gt} 20{mu}m scale although micropore surfaces and titanium oxide agglomerates were free of {alpha} emitting nuclides. The phase assemblage of the curium-doped titanate ceramic included freudenbergite and loveringite in addition to the more abundant oxide phases: hollandite, perovskite, and zirconolite. Accumulation of {alpha} decays was accompanied by a gradual decrease in density. The increment of density was {minus}1% after an equivalent age of 5000 yr. Leach tests showed a slight rend toward higher total release of curium with equivalent age. The release of soluble nonradioactive elements (e.g., Na, Cs, Sr, and Ca) in the oldest specimens (equivalent age, 2000 yr) varied from specimen to specimen but, on average, were higher than specimens that had suffered a lower radiation dose.

Miyazaki, T. (Second Dept. of Nuclear Business, Ibaraki Center, Chiyoda Maintenance Ltd., Asahi, Kashima, Ibaraki 314-14 (JP)); White, T.J. (Electron Microscope Centre, Univ. of Queensland, St. Lucia, Brisbane 4067 (AU)); Mitamura, H.; Matsumoto, S.; Nukaga, K.; Togashi, Y.; Sagawa, T.; Tashiro, S. (Dept. of Environmental Safety Research, Japan Atomic Energy Research Inst., Tokai, Naka, Ibaraki 319-11 (JP)); Levins, D.M. (Environmental Science Program, Australian Nuclear Science and Technology Organisation, Lucas Heights Research Lab., Lucas Heights, New South Wales (AU)); Kikuchi, A. (Dept. of Reactor Fuel Examination, Japan Atomic Energy Research Inst., Tokai, Naka, Ibaraki 319-11 (JP))

1990-11-01T23:59:59.000Z

249

Elastic ice shells of synchronous moons: Implications for cracks on Europa and non-synchronous rotation of Titan  

E-Print Network [OSTI]

A number of synchronous moons are thought to harbor water oceans beneath their outer ice shells. A subsurface ocean frictionally decouples the shell from the interior. This decoupling has led to proposals that a weak tidal or atmospheric torque might cause the shell to rotate differentially with respect to the synchronously rotating interior. Applications along these lines have been made to Europa and Titan. As a result of centrifugal and tidal forces, the oceans of Europa and Titan have ellipsoidal figures whose long axes point toward the parent planet. Any rotation of the shell away from its equilibrium position induces strains thereby increasing its elastic energy. Thus the shell is coupled to the ocean by an elastic torque. Regarding Europa, it is shown that the tidal torque is far too weak to produce stresses that could fracture the ice shell, thus refuting an idea that has been widely advocated. An alternative formation mechanism for large cracks is proposed. Two years of Cassini RADAR observations of T...

Goldreich, Peter M

2009-01-01T23:59:59.000Z

250

Directions to Titan Field COMING TO NEWARK FROM THE WEST-RT. 161 -Take Rt. 16-East to the Country Club Drive  

E-Print Network [OSTI]

is approximately ¼ mile down Sharon Valley on the right. COMING INTO NEWARK ON INTERSTATE-70 FROM THE WEST - From IDirections to Titan Field COMING TO NEWARK FROM THE WEST- RT. 161 - Take Rt. 16-East to the Country at Sharon Valley Road, turn right. The field is approximately ¼ mile down Sharon Valley on the right. COMING

251

Crossed Molecular Beams Study on the Formation of Vinylacetylene in Titan's Atmosphere Fangtong Zhang, Yong Seol Kim, and Ralf I. Kaiser*  

E-Print Network [OSTI]

), was investigated at a collision energy of 20.6 ( 0.4 kJ mol-1 utilizing the crossed-beams technique. Combined such as Titan's atmosphere via the neutral-neutral reaction of ethynyl radicals with ubiquitous ethylene and their role in the build-

Kaiser, Ralf I.

252

Geomorphological significance of Ontario Lacus on Titan: Integrated interpretation of Cassini VIMS, ISS and RADAR data and comparison with the Etosha Pan (Namibia)  

E-Print Network [OSTI]

Geomorphological significance of Ontario Lacus on Titan: Integrated interpretation of Cassini VIMS (ISS) in 2004 and 2005, Visual and Infrared Mapping Spectrometer (VIMS) in 2007 and 2009 and RADAR of Ontario Lacus, based on a joint analysis of ISS, VIMS and RADAR SAR datasets, along with the T49

Brest, Université de

253

Synthesis and Characterization of Single-Crystalline Alkali Titanate Cheng-Yan Xu,, Qi Zhang, Han Zhang,| Liang Zhen, Jie Tang,, and Lu-Chang Qin*,,|  

E-Print Network [OSTI]

a challenge, except for the template method. Recently, sodium titanate nanowires were produced by hydrothermal13 and K2Ti8O17 nanowires have also been successfully prepared by a hydrothermal reaction between Ti. The processing parameters are almost the same, except that the reaction temperature was set at 800 °C, as has

Qin, Lu-Chang

254

RHEOLOGY OF SETTLED SOLIDS IN THE SMALL COLUMN ION EXCHANGE PROCESS  

SciTech Connect (OSTI)

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 waste tank as process housing. This method includes the addition of monosodium titanate (MST) to a waste tank containing salt solution and entrained sludge solids, followed by tank mixing and filtration. The filtrate is then processed through in-tank ion exchange columns containing crystalline silicotitanate (CST) media. While the process is operating, it is known that solid particles begin to settle in the tank and temperatures may reach beyond 45 C. Previous testing has shown that sludge-MST slurries that sit for extended periods at elevated temperatures can develop large shear strengths, making them difficult to resuspend and remove from the tank. The authors conducted rheological testing of mixtures containing various concentrations of sludge simulant, MST, and CST (three preparations) that were aged at different times (i.e., 0 to 13 weeks) and isothermally maintained to 30, 45, or 60 C. Two types of grinding methodologies were employed to prepare CST for this testing, herein called Savannah River National Laboratory (SRNL) and Vitreous State Laboratory (VSL) ground materials. Unground CST particles were also tested. A small number of samples were irradiated prior to 4 week settling and 60 C temperature treatment, with exposures ranging from 0 to 100 MRad. Additional tests are also being conducted that will allow the solid particles to settle at 45 C for 6, 12, and 24 months. The objectives of this task are to determine the impact of feed composition, settling time, and temperature on the shear strength, yield stress, and consistency of the slurries and to determine the impact of radiation on slurry rheology. The testing will determine the relative impact of these parameters rather than predict the shear strength, yield stress, and consistency as a function of feed and operating conditions. This document describes the rheology of slurries containing MST, CST, and simulated sludge that sat at indicated temperatures for up to 13 weeks. A previous SRNL report described preliminary rheology data of slurries containing MST and sludge. Preliminary results of the irradiation tests are also presented in this report, though additional data are still being collected. Rheology of the long term settling samples (6, 12, and 24 months) and additional irradiation test results will be reported at a later date. Conclusions from this analysis are as follows: (1) Slurries containing MST and unground CST have the largest shear strength. Due to the high shear strengths measured in slurries containing unground CST, evaluations of specific tank contents and mixing capability should be performed prior to any addition of this material into a waste tank. Experimentally determined shear strengths indicate mixing could be problematic in mixtures containing unground CST. (2) Increasing the ground CST fraction in the slurry increases the slurry shear strength, yield stress, and consistency. (3) Increasing the sludge fraction in the slurry decreases the slurry shear strength, yield stress, and consistency. (4) Slurries containing VSL ground CST have larger shear strength, yield stress, and consistency than slurries containing SRNL ground CST. (5) The effects of settling time and temperature on slurry shear strength are slurry dependent. (6) No effects of settling time and temperature on slurry yield stress or consistency were observed. (7) Radiation up to 100 MRad does not appear to affect properties of shear strength, yield stress, or consistency of process feeds.

Ferguson, C.; Prior, M.; Koopman, D.; Edwards, T.

2011-06-20T23:59:59.000Z

255

An attrition-resistant zinc titanate sorbent for sulfur. Final technical report, September 1, 1992--August 31, 1993  

SciTech Connect (OSTI)

In the continuing search for good sorbent materials to remove sulfur for hot, coal-derived gases, zinc titanate sorbents have shown great promise. The objective of this project was to extend the work of prior investigators by developing improvements in the compressive strength and, therefore, the cycle life of these sorbents while maintaining good chemical reactivity. Fifteen formulations were prepared and evaluated. The best properties were obtained by blending relatively course (two micron) ZnO and TiO{sub 2} powders to obtain a composition of 50%Zn{sub 2}TiO{sub 4}-50%TiO{sub 2}. When sintered at 1000{degrees}C, it had a compressive strength of 28 MPa or 147 N/mm, which is four times higher than values obtained by prior investigators. It also performed well in thermogravimetric analysis measurements of reactivity, both in screening tests and in simulated coal gas.

Swisher, J.H. [Southern Illinois Univ., Carbondale, IL (United States). Dept. of Mechanical Engineering and Energy Processes

1993-12-31T23:59:59.000Z

256

Cation-Induced Collapse of Low-Molecular-Weight Polyacrylic Acid in the Dispersion of Barium Titanate  

Science Journals Connector (OSTI)

Observations on the steric layers formed by the adsorption of low-molecular-weight polyacrylic acid (PAA) were taken using the colloidal probe method in an atomic force microscope. The effects of divalent barium ions and of monovalent potassium ions at varying concentrations were observed on the repulsive interaction profiles. High ionic concentrations screened double-layer forces to small distances, whereby the acting forces were reduced to steric interactions. De Gennes scaling theory was used to model the effect of electrolyte on an aqueous barium titanate system, which was stabilized with PAA. The brush model was found to represent the force curves better than the mushroom model. The collapse of PAA layers with increasing salt approximated a grafted polymer brush in monovalent electrolyte, but the addition of barium ions caused markedly less steric collapse. It is suggested that the formation of a Ba2+–PAA complex in the adsorbed layer increases its compressibility parameter.

Nelson S. Bell; Jürgen Sindel; F. Aldinger; Wolfgang M. Sigmund

2002-01-01T23:59:59.000Z

257

Modeling of irradiation-induced amorphization in a titanate ceramic. [(CaPuTi/sub 2/O/sub 7/)  

SciTech Connect (OSTI)

Calculations have been carried out to model the alpha decay-induced conversion of a titanate ceramic (CaPuTi/sub 2/O/sub 7/) from the crystalline state to an amorphous condition. Experimental results have shown that the disordered state varies with irradiation temperature and extent of redamage, and so special consideration is given to those factors. Results of these calculations are applied to the analysis of dimensional changes during irradiation at various temperatures and release of stored energy on recovery to the crystalline state. Modeling results appear to show that it is possible to convert to the amorphous state under irradiation by two different processes. Modeling is also employed to extend experimental results on swelling from the present data base to a high damage rate characteristic of ion implantation and the low rates typical of nuclear waste storage and self-damage of natural mineral analogues. 15 refs., 5 figs.; 1 tab.

Coghlan, W.A.; Clinard, F.W. Jr.

1987-01-01T23:59:59.000Z

258

[alpha]-Decay damage effects in curium-doped titanate ceramic containing sodium-free high-level nuclear waste  

SciTech Connect (OSTI)

A polyphase titanate ceramic incorporating sodium-free simulated high-level nuclear waste was doped with 0.91 wt% of [sup 224]Cm to accelerate the effects of long-term self-irradiation arising from [alpha] decays. The ceramic included three main constituent minerals: hollandite, perovskite, and zirconolite, with some minor phases. Although hollandite showed the broadening of its X-ray diffraction lines and small lattice parameter changes during damage in growth, the unit cell was substantially unaltered. Perovskite and zirconolite, which are the primary hosts of curium, showed 2.7% and 2.6% expansions, respectively, of their unit cell volumes after a dose of 12 [times] 10[sup 17] [alpha] decays[center dot]g[sup [minus]1]. Volume swelling due to damage in growth caused an exponential (almost linear) decrease in density, which reached 1.7% after a dose of 12.4 [times] 10[sup 17] [alpha] decays[center dot]g[sup [minus]1]. Leach tests on samples that had incurred doses of 2.0 [times] 10[sup 17] and 4.5 [times] 10[sup 17] [alpha] decays[center dot]g[sup [minus]1] showed that the rates of dissolution of cesium and barium were similar to analogous leach rates from the equivalent cold ceramic, while strontium and calcium leach rates were 2--15 times higher. Although the cerium, molybdenum, strontium, and calcium leach rates in the present material were similar to those in the curium-doped sodium-bearing titanate ceramic reported previously, the cesium leach rate was 3--8 times lower.

Mitamura, Hisayoshi; Matsumoto, Seiichiro; Tsuboi, Takashi; Hashimoto, Masaaki; Togashi, Yoshihiro; Kanazawa, Hiroyuki (Japan Atomic Energy Research Inst., Ibaraki (Japan)); Stewart, M.W.A.; Vance, E.R.; Hart, K.P.; Ball, C.J. (Australian Nuclear Science and Technology Organization, Lucas Heights, New South Wales (Australia). Lucas Heights Research Labs.); White, T.J.

1994-09-01T23:59:59.000Z

259

VIMS images of the Huygens landing site on Titan: S. Rodriguez et al. Cassini/VIMS hyperspectral observations of the HUYGENS  

E-Print Network [OSTI]

VIMS images of the Huygens landing site on Titan: S. Rodriguez et al. 1 Cassini/VIMS hyperspectral.N. Clark2 , B. Buratti3 , R.H. Brown4 , T.B. McCord5 , P.D. Nicholson6 , K.H. Baines3 and the VIMS science Number of Table(s): 1 Number of figure(s): 11 Running Head: VIMS images of the Huygens probe landing site

Paris-Sud XI, Université de

260

On the State of Water Ice on Saturn's Moon Titan and Implications to Icy Bodies in the Outer Solar System  

E-Print Network [OSTI]

The crystalline state of water ice in the Solar System depends on the temperature history of the ice and the influence of energetic particles to which it has been exposed. We measured the infrared absorption spectra of amorphous and crystalline water ice in the 10-50 K and 10-140 K temperature range, respectively, and conducted a systematic experimental study to investigate the amorphization of crystalline water ice via ionizing radiation irradiation at doses of up to 160 \\pm 30 eV per molecule. We found that crystalline water ice can be converted only partially to amorphous ice by electron irradiation. The experiments showed that a fraction of the 1.65 \\mum band, which is characteristic for crystalline water ice, survived the irradiation, to a degree that strongly depends on the temperature. Quantitative kinetic fits of the temporal evolution of the 1.65 \\mum band clearly demonstrate that there is a balance between thermal recrystallization and irradiation-induced amorphization, with thermal recrystallizaton dominant at higher temperatures. Our experiments show the amorphization at 40K was incomplete, in contradiction to Mastrapa and Brown's conclusion (Icarus 2006, 183, 207.). At 50 K, the recrystallization due to thermal effects is strong, and most of the crystalline ice survived. Temperatures of most icy objects in the Solar System, including Jovian satellites, Saturnian satellites (including Titan), and Kuiper Belt Objects, are equal to or above 50 K; this explains why water ice detected on those objects is mostly crystalline.

Weijun Zheng; David Jewitt; Ralf I. Kaiser

2008-01-18T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Symmetries and multiferroic properties of novel room-temperature magnetoelectrics: Lead iron tantalate – lead zirconate titanate (PFT/PZT)  

Science Journals Connector (OSTI)

Mixing 60-70% lead zirconate titanate with 40-30% lead iron tantalate produces a single-phase low-loss room-temperature multiferroic with magnetoelectric coupling: (PbZr0.53Ti0.47O3) (1-x)- (PbFe0.5Ta0.5O3)x. The present study combines x-ray scattering magnetic and polarization hysteresis in both phases plus a second-order dielectric divergence (to epsilon = 6000 at 475 K for 0.4 PFT; to 4000 at 520 K for 0.3 PFT) for an unambiguous assignment as a C2v-C4v (Pmm2-P4mm) transition. The material exhibits square saturated magnetic hysteresis loops with 0.1 emu/g at 295 K and saturation polarization Pr = 25 ?C/cm2 which actually increases (to 40 ?C/cm2) in the high-T tetragonal phase representing an exciting new room temperature oxide multiferroic to compete with BiFeO3. Additional transitions at high temperatures (cubic at T>1300 K) and low temperatures (rhombohedral or monoclinic at T<250 K) are found. These are the lowest-loss room-temperature multiferroics known which is a great advantage for magnetoelectric devices.

Dilsom A. Sanchez; N. Ortega; Ashok Kumar; R. Roque-Malherbe; R. Polanco; J. F. Scott; Ram S. Katiyar

2011-01-01T23:59:59.000Z

262

IMPACT OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION MELT RATE STUDIES  

SciTech Connect (OSTI)

This study was undertaken to evaluate the potential impacts of the Small Column Ion Exchange (SCIX) streams - particularly the addition of Monosodium Titanate (MST) and Crystalline Silicotitanate (CST) - on the melt rate of simulated feed for the Defense Waste Processing Facility (DWPF). Additional MST was added to account for contributions from the Salt Waste Processing Facility (SWPF). The Savannah River National Laboratory (SRNL) Melt Rate Furnace (MRF) was used to evaluate four melter feed compositions: two with simulated SCIX and SWPF material and two without. The Slurry-fed Melt Rate Furnace (SMRF) was then used to compare two different feeds: one with and one without bounding concentrations of simulated SCIX and SWPF material. Analyses of the melter feed materials confirmed that they met their targeted compositions. Four feeds were tested in triplicate in the MRF. The linear melt rates were determined by using X-ray computed tomography to measure the height of the glass formed along the bottom of the beakers. The addition of the SCIX and SWPF material reduced the average measured melt rate by about 10% in MRF testing, although there was significant scatter in the data. Two feeds were tested in the SMRF. It was noted that the ground CST alone (ground CST with liquid in a bucket) was extremely difficult to resuspend during preparation of the feed with material from SCIX and SWPF. This feed was also more difficult to pump than the material without MST and CST due to settling occurring in the melter feed line, although the yield stress of both feeds was high relative to the DWPF design basis. Steady state feeding conditions were maintained for about five hours for each feed. There was a reduction in the feed and pour rates of approximately 15% when CST and MST were added to the feed, although there was significant scatter in the data. Analysis of samples collected from the SMRF pour stream showed that the composition of the glass changed as expected when MST and CST were added to the feed. These reductions in melt rate are consistent with previous studies that showed a negative impact of increased TiO{sub 2} concentrations on the rate of melting. The impact of agitating the melt pool via bubbling was not studied as part of this work, but may be of interest for further testing. It is recommended that additional melt rate testing be performed should a potential reduction in melt rate of 10-15% be considered an issue of concern, or should the anticipated composition of the glass with the addition of material from salt waste processing be modified significantly from the current projections, either due to changes in sludge batch preparation or changes in the composition or volume of SCIX and SWPF material.

Fox, K.; Miller, D.; Koopman, D.

2011-04-26T23:59:59.000Z

263

Enhanced durability of high-temperature desulfurization sorbents for moving-bed applications. Option 2 Program: Development and testing of zinc titanate sorbents  

SciTech Connect (OSTI)

One of the most advantageous configurations of the integrated gasification combined cycle (IGCC) power system is coupling it with a hot gas cleanup for the more efficient production of electric power in an environmentally acceptable manner. In conventional gasification cleanup systems, closely heat exchangers are necessary to cool down the fuel gases for cleaning, sometimes as low as 200--300{degree}F, and to reheat the gases prior to injection into the turbine. The result is significant losses in efficiency for the overall power cycle. High-temperature coal gas cleanup in the IGCC system can be operated near 1000{degree}F or higher, i.e., at conditions compatible with the gasifier and turbine components, resulting is a more efficient overall system. GE is developing a moving-bed, high-temperature desulfurization system for IGCC power systems in which mixed-metal oxides are currently being used as desulfurization sorbents. The objective of this contract is to identify and test fabrication methods and sorbent chemical compositions that enhance the long-term chemical reactivity and mechanical durability of zinc ferrite and other novel sorbents for moving-bed, high-temperature desulfurization of coal-derived gases. Zinc ferrite was studied under the base program of this contract. In the next phase of this program novel sorbents, particularly zinc titanate-based sorbents, are being studied under the remaining optional programs. This topical report summarizes only the work performed under the Option 2 program. In the course of carrying out the program, more than 25 zinc titanate formulations have been prepared and characterized to identify formulations exhibiting enhanced properties over the baseline zinc titanate formulation selected by the US Department of Energy.

Ayala, R.E.

1993-04-01T23:59:59.000Z

264

MST: Organizations: Manufacturing Processes & Services  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Manufacturing Processing Manufacturing Processing Manufacturing Process, Science, and Technology Mark Smith Mark Smith, Senior Manager Manufacturing Process Science and Technology conducts research and development on advanced manufacturing process and materials technologies. It provides manufacturing process development, technical consulting, and technology transfer to support Sandia product realization needs. This organization also provides prototype fabrication and specialized production services, as required, to support Sandia missions. Departments Dianna Blair Mike Kelly Alex Roesler Paul C. McKey Thin Film, Vacuum, and Packaging Organic Materials Ceramics and Glass Meso Mfg. and System Development Dianna Blair, Manager Mike Kelly, Manager Alex Roesler, Manager Paul C. McKey,

265

Low leakage Ru-strontium titanate-Ru metal-insulator-metal capacitors for sub-20?nm technology node in dynamic random access memory  

SciTech Connect (OSTI)

Improved metal-insulator-metal capacitor (MIMCAP) stacks with strontium titanate (STO) as dielectric sandwiched between Ru as top and bottom electrode are shown. The Ru/STO/Ru stack demonstrates clearly its potential to reach sub-20?nm technology nodes for dynamic random access memory. Downscaling of the equivalent oxide thickness, leakage current density (J{sub g}) of the MIMCAPs, and physical thickness of the STO have been realized by control of the Sr/Ti ratio and grain size using a heterogeneous TiO{sub 2}/STO based nanolaminate stack deposition and a two-step crystallization anneal. Replacement of TiN with Ru as both top and bottom electrodes reduces the amount of electrically active defects and is essential to achieve a low leakage current in the MIM capacitor.

Popovici, M., E-mail: Mihaela.Ioana.Popovici@imec.be; Swerts, J.; Redolfi, A.; Kaczer, B.; Aoulaiche, M.; Radu, I.; Clima, S.; Everaert, J.-L.; Van Elshocht, S.; Jurczak, M. [Imec, Leuven 3001 (Belgium)

2014-02-24T23:59:59.000Z

266

CHARACTERIZATION REPORT FOR STRONTIUM TITANATE IN SWSA 7 AND ADJACENT PARCELS IN SUPPORT OF THE NATIONAL PRIORITIES LIST SITE BOUNDARY DEFINITION PROGRAM OAK RIDGE, TENNESSEE  

SciTech Connect (OSTI)

The U.S. Department of Energy (DOE) Oak Ridge Office requested support from the Oak Ridge Institute for Science and Education (ORISE) contract to delineate the extent of strontium titanate (SrTiO3) contamination in and around Solid Waste Storage Area (SWSA) 7 as part of the Oak Ridge National Priorities List Site boundary definition program. The study area is presented in Fig. 1.1 relative to the Oak Ridge Reservation (ORR). The investigation was executed according to Sampling and Analysis Plan/Quality Assurance Project Plan (SAP/QAPP) (DOE 2011) to supplement previous investigations noted below and to determine what areas, if any, have been adversely impacted by site operations.

David A. King

2011-10-10T23:59:59.000Z

267

Screening Evaluation of Sodium Nonatitanate for Strontium and Actinide Removal from Alkaline Salt Solution  

SciTech Connect (OSTI)

This report describes results from screening tests evaluating strontium and actinide removal characteristics of a sodium titanate material developed by Clearfield and coworkers at Texas A and M University and offered commercially by Honeywell. Sodium nonatitanate may exhibit improved actinide removal kinetics and filtration characteristics compared to MST and thus merit testing.

Hobbs, D.T.

2001-02-13T23:59:59.000Z

268

Development of a straightness measurement and compensation system with multiple right-angle reflectors and a lead zirconate titanate-based compensation stage  

SciTech Connect (OSTI)

This paper presents a real-time straightness measurement and compensation system with an optical straightness measurement system and a single-axis flexure-hinge type lead zirconate titanate (PZT)-based compensation stage. The optical straightness measurement system consists of a He-Ne laser, a quadrant photodiode detector, and five right-angle reflectors. Multiple laser beam reflections between the right-angle reflectors increase the sensitivity of the straightness measurement by a factor of 6. The right-angle reflectors can be moved by the flexure-hinge type PZT-based compensation stage that is actuated by a PZT actuator to ensure that the laser beam is always projected onto the center of the quadrant detector. These two systems are integrated and fixed on a scanning stage. The resolution of the straightness measurement system is 0.1 {mu}m. Using the real-time straightness compensation system, the straightness error of the scanning stage is fed back to the control system. The compensated straightness error of the scanning stage system was reduced from 6.5 {mu}m to less than 1 {mu}m.

Liu, Chien-Hung; Chen, Jui-Hung [Institute of Electro-Optical and Materials Science, National Formosa University, Huwei, Yunlin 632, Taiwan (China); Teng, Yun-Feng [Department of Mechanical Engineering, National Chung-Cheng University, Chiayi 621, Taiwan (China)

2009-11-15T23:59:59.000Z

269

Citrate gel synthesis of aluminum-doped lithium lanthanum titanate solid electrolyte for application in organic-type lithium–oxygen batteries  

Science Journals Connector (OSTI)

Abstract Aluminium doped lithium lanthanum titanate (A-LLTO) powders with various excess Li2O content are synthesized using a simple citrate gel method. The obtained A-LLTO powders show an agglomerated form, composed of nano-sized particles of 20–50 nm. The morphology and conductivity of the A-LLTO ceramics are largely affected by the content of excess Li2O. The highest total ionic conductivity of 3.17 × 10?4 S cm?1 is achieved for the A-LLTO sample containing 20% excess Li2O, exhibiting a vacancy content of 6%, and a total activation energy of 0.358 eV. The A-LLTO can act as a membrane to protect lithium metal from oxygen and other contaminants diffused through the oxygen electrode part. The Li–O2 cell employing the A-LLTO solid electrolyte shows a good cycle life of longer than 100 discharge-charge cycles, under the constant capacity mode of 300 mAh g?1.

Hang T.T. Le; Ramchandra S. Kalubarme; Duc Tung Ngo; Seong-Yong Jang; Kyu-Nam Jung; Kyoung-Hee Shin; Chan- Jin Park

2015-01-01T23:59:59.000Z

270

Physics and technology in the ion-cyclotron range of frequency on Tore Supra and TITAN test facility: implication for ITER  

SciTech Connect (OSTI)

To support the design of an ITER ion-cyclotron range of frequency heating (ICRH) system and to mitigate risks of operation in ITER, CEA has initiated an ambitious Research & Development program accompanied by experiments on Tore Supra or test-bed facility together with a significant modelling effort. The paper summarizes the recent results in the following areas: Comprehensive characterization (experiments and modelling) of a new Faraday screen concept tested on the Tore Supra antenna. A new model is developed for calculating the ICRH sheath rectification at the antenna vicinity. The model is applied to calculate the local heat flux on Tore Supra and ITER ICRH antennas. Full-wave modelling of ITER ICRH heating and current drive scenarios with the EVE code. With 20 MW of power, a current of 400 kA could be driven on axis in the DT scenario. Comparison between DT and DT(3He) scenario is given for heating and current drive efficiencies. First operation of CW test-bed facility, TITAN, designed for ITER ICRH components testing and could host up to a quarter of an ITER antenna. R&D of high permittivity materials to improve load of test facilities to better simulate ITER plasma antenna loading conditions.

Litaudon, X [CEA, France; Bernard, J. M. [CEA, IRFM, France; Colas, L. [CEA, France; Dumont, R. J. [CEA Cadarache, St. Paul lex Durance, France; Argouarch, A. [CEA Cadarache, St. Paul lex Durance, France; Bottollier-Curtet, H. [CEA, IRFM, France; Bremond, S. [CEA, IRFM, France; Champeaux, S. [CEA, IRFM, France; Corre, Y. [CEA Cadarache, St. Paul lex Durance, France; Dumortier, P. [ERM-KMS, Association EURATOM-Belgian State, Brussels, Belgium; Firdaouss, M. [CEA, IRFM, France; Guilhem, D. [CEA, IRFM, France; Gunn, J. P. [CEA, IRFM, France; Gouard, Ph. [CEA, DAM, DIF, Arpajon cedex, France; Hoang, G T [CEA, IRFM, France; Jacquot, Jonathan [CEA, IRFM, France; Klepper, C Christopher [ORNL; Kubic, M. [CEA, IRFM, France; Kyrytsya, V. [ERM-KMS, Association EURATOM-Belgian State, Brussels, Belgium; Lombard, G. [CEA, IRFM, France; Milanesio, D. [Politecnico di Torino; Messiaen, A. [ERM-KMS, Association EURATOM-Belgian State, Brussels, Belgium; Mollard, P. [CEA, IRFM, France; Meyer, O. [CEA Cadarache, St. Paul lex Durance, France; Zarzoso, D. [CEA, IRFM, France

2013-01-01T23:59:59.000Z

271

Optical amplification in disordered electrooptic Tm{sup 3+} and Ho{sup 3+} codoped lanthanum-modified lead zirconate titanate ceramics and study of spectroscopy and communication between cations  

SciTech Connect (OSTI)

Rare earth doped electro-optic (EO) ceramics of lanthanum-modified lead zirconate titanate (PLZT) are promising in building multifunctional optical devices, by taking advantage of both EO effect and optical activity. In this work, the combination of the measured spectra of absorption and photoluminescence, the fluorescent decay, the calculated Judd-Ofelt parameters, and measured single pass gain in Tm{sup 3+}, Ho{sup 3+} codoped PLZT ceramics have marked them out as promising gain media in building electrically controllable lasers/optical amplifiers and other multifunctional devices. Optical energy storage was also observed in the optical amplification dynamics.

Zhao, Hua; Zhang, Kun; Xu, Long; Sun, Fankui; Zhang, Jingwen, E-mail: jingwenz@gmail.com [Department of Physics, Harbin Institute of Technology, Harbin 150001 (China); Chen, Xuesheng [Department of Physics and Astronomy, Wheaton College, Norton Massachusetts 02766 (United States); Li, Kewen K. [Boston Applied Technologies, Inc., Woburn, Massachusetts 01801 (United States)

2014-02-21T23:59:59.000Z

272

Characterization Of Supernate Samples From High Level Waste Tanks 13H, 30H, 37H, 39H, 45F, 46F and 49H  

SciTech Connect (OSTI)

This document presents work conducted in support of technical needs expressed, in part, by the Engineering, Procurement, and Construction Contractor for the Salt Waste Processing Facility (SWPF). The Department of Energy (DOE) requested that Savannah River National Laboratory (SRNL) analyze and characterize supernate waste from seven selected High Level Waste (HLW) tanks to allow: classification of feed to be sent to the SWPF; verification that SWPF processes will be able to meet Saltstone Waste Acceptance Criteria (WAC); and updating of the Waste Characterization System (WCS) database. This document provides characterization data of samples obtained from Tanks 13H, 30H, 37H, 39H, 45F, 46F, and 49H and discusses results. Characterization of the waste tank samples involved several treatments and analysis at various stages of sample processing. These analytical stages included as-received liquid, post-dilution to 6.44 M sodium (target), post-acid digestion, post-filtration (at 3 filtration pore sizes), and after cesium removal using ammonium molybdophosphate (AMP). All tanks will require cesium removal as well as treatment with Monosodium Titanate (MST) for {sup 90}Sr (Strontium) decontamination. A small filtration effect for 90Sr was observed for six of the seven tank wastes. No filtration effects were observed for Pu (Plutonium), Np (Neptunium), U (Uranium), or Tc (Technetium); {sup 137}Cs (Cesium) concentration is ~E+09 pCi/mL for all the tank wastes. Tank 37H is significantly higher in {sup 90}Sr than the other six tanks. {sup 237}Np in the F-area tanks (45F and 46F) are at least 1 order of magnitude less than the H-Area tank wastes. The data indicate a constant ratio of {sup 99}Tc to Cs in the seven tank wastes. This indicates the Tc remains largely soluble in Savannah River Site (SRS) waste and partitions similarly with Cs. {sup 241}Am (Americium) concentration was low in the seven tank wastes. The majority of data were detection limit values, the largest being < 1.0E+04 pCi/mL. Measured values for Pu and U were generally well below solubility model predictions.

Stallings, M. E.; Barnes, M. J.; Peters, T. B.; Diprete, D. P.; Hobbs, D. T.; Fink, S. D.

2005-06-15T23:59:59.000Z

273

ANALYSES OF HTF-48-12-20/24 (FEBRUARY, 2012) AND ARCHIVED HTF-E-05-021 TANK 48H SLURRY SAMPLES  

SciTech Connect (OSTI)

Personnel characterized a Savannah River National Laboratory (SRNL) archived sample of Tank 48H slurry (HTF-E-05-021) in addition to the composite of samples HTF-48-12-20 and HTF-48-12-24, which were both retrieved in February 2012. The combined February 2012 sample is referred to as HTF-48-12-20/24 in this report. The results from these analyses are compared with Tank 48H samples analyzed in 2003, 2004, and 2005. This work supports the effort to demonstrate copper-catalyzed peroxide oxidation (CCPO) of organic content in this material. The principal findings with respect to the chemical and physical characteristics of the most recent sample are: (1) The measured potassium tetraphenylborate (KTPB) solid concentration is 1.76 wt %; (2) Titanium was in line with 2004 and 2005 slurry measurements at 897 mg/L, it represents 0.1535 {+-} 0.0012 wt % monosodium titanate (MST); (3) The measured insoluble solids content was 1.467 wt %; (4) The free hydroxide concentration in the Tank 48H filtrate sample (1.02 {+-} 0.02 M) is close to the Tank 48H limit (1.0 M); (5) Carbonate reported by total inorganic carbon (TIC, 1.39 {+-} 0.03 M) is more than double the concentrations measured in past (2003-2005) samples; (6) The soluble potassium content (measured at 286 {+-} 23 mg/L) in the filtrate is in line with all past measurements; and (7) The measured {sup 137}Cs concentration is 7.81E + 08 {+-} 3.9E + 07 dpm/mL of slurry (1.33 {+-} 5% Ci/gallon or 3.18E + 05 {+-} 5% curies of {sup 137}Cs in the tank) in the slurry which is in agreement with the 2005 report of 3.14E + 05 {+-} 1.5% curies of {sup 137}Cs in the tank. The filtrate {sup 137}Cs concentration is 2.57E + 07 {+-} 2.6E + 05 dpm/mL. This result is consistent with previous results. Significant analytical data are summarized in Table 1.

Nash, C.; Peters, T.

2012-08-02T23:59:59.000Z

274

Los Alamos: MST-MTM: EML: Electron Microscopy Laboratory  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3000F High Resolution Transmission Electron Microscope 3000F High Resolution Transmission Electron Microscope JEOL 3000F High Resolution Transmission Electron Microscope This is a high-resolution TEM equipped with an electron energy-loss spectrometer and a CCD camera for digital image acquisition. This microscope is used primarily for imaging the atomic structure of defects and interfaces in materials. Field emission electron source. Coherent source with an energy spread of 0.8 eV. Operation at accelerating voltages of up to 300 kV. +/- 10° of eucentric specimen tilt. Point to point resolution of 0.17 nm; 0.10 nm resolution can be extracted by computer processing. Gatan Multiscan CCD Camera for digital image acquisition. Automated microscope alignment: defocus calibration/adjustment, astigmatism correction and beam-tilt correction (automatic coma-free alignment).

275

Nuclear Materials Science:Materials Science Technology:MST-16...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and actinide fundamental science. Alison Costello One for the team by Diana Del Mauro Alison Costello Surface Science and Corrosion team staff member Alison Costello and...

276

Microsoft Word - eMST report - for signature.docx  

Office of Scientific and Technical Information (OSTI)

by combining all radiochemical separations into a single unit operation within waste tanks. Combined radiochemical separations can be achieved using a combined ion-exchange and...

277

CS 105: Grad. Algorithms Winter 2005 MST VERIFICATION  

E-Print Network [OSTI]

Ancestors (LCA's). COMPUTE LCA'S: for each {u, v} # E - T : compute l = LCA(u, v) and put {u, v@cs.dartmouth.edu 2 LCA and Disjoint Set Union Maintain n elements under two operations. UNION(A, B, C) : C # A # B. LCA Algorithm : Given a rooted tree T , a set P of pairs of {u, v} # V and |P | = m Goal: Find LCA

Chakrabarti, Amit

278

Topics: Discovering the lower limit to magnetic transport - MST...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

RFP plasmas has long been thought to result from parallel losses on stochastic magnetic field lines that wander from the core to the edge. The low safety factor in the RFP permits...

279

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION KT07-SERIES GLASS COMPOSITIONS  

SciTech Connect (OSTI)

This report is the third in a series of studies of the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. MST from the Salt Waste Processing Facility is also considered in the study. The KT07-series glasses were selected to evaluate any potential impacts of noble metals on their properties and performance. The glasses characterized thus far for the SCIX study have not included noble metals since they are not typically tracked in sludge batch composition projections. However, noble metals can act as nucleation sites in glass melts, leading to enhanced crystallization. This crystallization can potentially influence the properties and performance of the glass, such as chemical durability, viscosity, and liquidus temperature. The noble metals Ag, Pd, Rh, and Ru were added to the KT07-series glasses in concentrations based on recent measurements of Sludge Batch 6, which was considered to contain a high concentration of noble metals. The KT04-series glasses were used as the baseline compositions. After fabrication, the glasses were characterized to determine their homogeneity, chemical composition, durability, and viscosity. Liquidus temperature measurements are also underway but were not complete at the time of this report. The liquidus temperature results for the KT07-series glasses, along with several of the earlier glasses in the SCIX study, will be documented separately. All of the KT07-series glasses, both quenched and slowly cooled, were found to be amorphous by X-ray diffraction. Chemical composition measurements showed that all of the glasses met their targeted compositions. The Product Consistency Test (PCT) results showed that all of the glasses had chemical durabilities that were far better than that of the Environmental Assessment benchmark glass. The measured PCT responses were well predicted by the current DWPF Product Composition Control System (PCCS) durability models. The measured viscosity values for each KT07-series glass were acceptable for DWPF processing and were well predicted by the current PCCS model. Overall, the results show that the inclusion of relatively high concentrations of noble metals (in terms of expected values for a DWPF sludge batch) had no significant impact on the properties and performance of these glass compositions. There were no significant differences in the measured properties when compared to those of the KT04-series glasses, which did not contain noble metals. Liquidus temperature measurements are still underway and there may be an impact of the noble metals on those measurements. However, no adverse effects were noted in terms of crystallization after slow cooling. At the completion of these studies, all of the data generated will be reviewed with regard to the applicability of the DWPF PCCS models and recommendations will be made as to whether the validation ranges of the current models can be extended, or whether some or all of the models need to be refit to allow for the incorporation of the SCIX streams. As changes are made to the projected sludge compositions and the volume of the SCIX material, additional evaluations should be performed.

Fox, K.; Edwards, T.

2011-01-12T23:59:59.000Z

280

Turbulence May Sink Titanic Reactor  

Science Journals Connector (OSTI)

...and Kotschenreuther (IFS); Hammett (PPPL) ITER's power output, like any tokamak's, will...the Princeton Plasma Physics Laboratory (PPPL) and Francis Perkins, who is now the...eddies and limit their growth, and by PPPL's Michael Beer. It all meshes together...

James Glanz

1996-12-06T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Titan Beyond Cassini—Huygens  

Science Journals Connector (OSTI)

The NASA Flagship study (Leary et al. 2007; Lorenz et al. 2008; Lockwood et al. 2008...) considered a variety of mission architectures but quickly converged to a triple-platform mission (of orbiter, lander and ba...

Michele K. Dougherty; Athena Coustenis; Ralph D. Lorenz

2010-01-01T23:59:59.000Z

282

Titanic complexity pleases planet scientists  

Science Journals Connector (OSTI)

... team have named Circus Maximus. The crater has been considerably eroded over time, with roughened edges, and various hills and channels scarring its centre. ...

Jo Marchant

2005-02-21T23:59:59.000Z

283

The dynamics of Titan's troposphere  

Science Journals Connector (OSTI)

...poleward of the latitude of maximum solar heating in order to ensure the...controlled by a balance between the solar heating and greenhouse effect...surface, and the small heat capacity of solid surface allows the...few K almost in phase with the solar forcing (Tokano 2005). This...

2009-01-01T23:59:59.000Z

284

CHARACTERIZATION OF A PRECIPITATE REACTOR FEED TANK (PRFT) SAMPLE FROM THE DEFENSE WASTE PROCESSING FACILITY (DWPF)  

SciTech Connect (OSTI)

A sample of from the Defense Waste Processing Facility (DWPF) Precipitate Reactor Feed Tank (PRFT) was pulled and sent to the Savannah River National Laboratory (SRNL) in June of 2013. The PRFT in DWPF receives Actinide Removal Process (ARP)/ Monosodium Titanate (MST) material from the 512-S Facility via the 511-S Facility. This 2.2 L sample was to be used in small-scale DWPF chemical process cell testing in the Shielded Cells Facility of SRNL. A 1L sub-sample portion was characterized to determine the physical properties such as weight percent solids, density, particle size distribution and crystalline phase identification. Further chemical analysis of the PRFT filtrate and dissolved slurry included metals and anions as well as carbon and base analysis. This technical report describes the characterization and analysis of the PRFT sample from DWPF. At SRNL, the 2.2 L PRFT sample was composited from eleven separate samples received from DWPF. The visible solids were observed to be relatively quick settling which allowed for the rinsing of the original shipping vials with PRFT supernate on the same day as compositing. Most analyses were performed in triplicate except for particle size distribution (PSD), X-ray diffraction (XRD), Scanning Electron Microscopy (SEM) and thermogravimetric analysis (TGA). PRFT slurry samples were dissolved using a mixed HNO3/HF acid for subsequent Inductively Coupled Plasma Atomic Emission Spectroscopy (ICPAES) and Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) analyses performed by SRNL Analytical Development (AD). Per the task request for this work, analysis of the PRFT slurry and filtrate for metals, anions, carbon and base were primarily performed to support the planned chemical process cell testing and to provide additional component concentrations in addition to the limited data available from DWPF. Analysis of the insoluble solids portion of the PRFT slurry was aimed at detailed characterization of these solids (TGA, PSD, XRD and SEM) in support of the Salt IPT chemistry team. The overall conclusions from analyses performed in this study are that the PRFT slurry consists of 0.61 Wt.% insoluble MST solids suspended in a 0.77 M [Na+] caustic solution containing various anions such as nitrate, nitrite, sulfate, carbonate and oxalate. The corresponding measured sulfur level in the PRFT slurry, a critical element for determining how much of the PRFT slurry gets blended into the SRAT, is 0.437 Wt.% TS. The PRFT slurry does not contain insoluble oxalates nor significant quantities of high activity sludge solids. The lack of sludge solids has been alluded to by the Salt IPT chemistry team in citing that the mixing pump has been removed from Tank 49H, the feed tank to ARP-MCU, thus allowing the sludge solids to settle out. ? The PRFT aqueous slurry from DWPF was found to contain 5.96 Wt.% total dried solids. Of these total dried solids, relatively low levels of insoluble solids (0.61 Wt.%) were measured. The densities of both the filtrate and slurry were 1.05 g/mL. ? Particle size distribution of the PRFT solids in filtered caustic simulant and XRD analysis of washed/dried PRFT solids indicate that the PRFT slurry contains a bimodal distribution of particles in the range of 1 and 6 ?m and that the particles contain sodium titanium oxide hydroxide Na2Ti2O4(OH)2 crystalline material as determined by XRD. These data are in excellent agreement with similar data obtained from laboratory sampling of vendor supplied MST. Scanning Electron Microscopy (SEM) combined with Energy Dispersive X-ray Spectroscopy (EDS) analysis of washed/dried PRFT solids shows the particles to be like previous MST analyses consisting of irregular shaped micron-sized solids consisting primarily of Na and Ti. ? Thermogravimetric analysis of the washed and unwashed PRFT solids shows that the washed solids are very similar to MST solids. The TGA mass loss signal for the unwashed solids shows similar features to TGA performed on cellulose nitrate filter paper indicating significant presence of the deteriorated filter

Crawford, C.; Bannochie, C.

2014-05-12T23:59:59.000Z

285

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION: KT08, KT09, AND KT10-SERIES GLASS COMPOSITIONS  

SciTech Connect (OSTI)

This report is the fourth in a series of studies of the impacts of the addition of Crystalline Silicotitanate (CST) and Monosodium Titanate (MST) from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) glass waste form and the applicability of the DWPF process control models. MST from the Salt Waste Processing Facility (SWPF) is also considered in the study. The KT08-series of glasses was designed to evaluate any impacts of the inclusion of uranium and thorium in glasses containing the SCIX components. The KT09-series of glasses was designed to study the effect of increasing Al{sub 2}O{sub 3} and K{sub 2}O concentrations on the propensity for crystallization of titanium containing phases in high TiO{sub 2} concentration glasses. Earlier work on the KT05-series glasses recommended that the impact of these two components be studied further. Increased Al{sub 2}O{sub 3} concentrations have been shown to improve the properties and performance of high waste loading glasses, and K{sub 2}O has been reported to improve the retention of TiO{sub 2} in silicate glasses. The KT10-series of compositions was designed to evaluate any impacts of the SCIX components at concentrations 50% higher than currently projected.a The glasses were fabricated in the laboratory and characterized to identify crystallization, to verify chemical compositions, to measure viscosity, and to measure durability. Liquidus temperature measurements for the KT10-series glasses are underway and will be reported separately. All but one of the KT08-series glasses were found to be amorphous by X-ray diffraction (XRD). One of the slowly cooled glasses contained a small amount of trevorite, which had no practical impact on the durability of the glass and is typically found in DWPF-type glasses. The measured Product Consistency Test (PCT) responses for the KT08-series glasses are well predicted by the DWPF models. The viscosities of the KT08-series glasses were generally well predicted by the DWPF model. No unexpected issues were encountered when uranium and thorium were added to the glasses with SCIX components. Increased Al{sub 2}O{sub 3} concentrations were not successful in preventing the formation of iron titanate crystals in the KT09-series glasses. Increased K{sub 2}O concentrations were successful in hindering the formation of iron titanates in some of the glasses after the canister centerline cooled (CCC) heat treatment. However, this result did not apply to all of the CCC versions of the glasses, indicating a compositional dependence of this effect. In addition, high concentrations of K{sub 2}O have been shown to hinder the ability of the DWPF durability and viscosity models to predict the performance of these glasses. The usefulness of increased K{sub 2}O concentrations in preventing the formation of iron titanates may therefore be limited. Further characterization was not performed for the KT09-series glasses since the type of crystallization formed was the characteristic of interest for these compositions. All of the KT10-series glasses were XRD amorphous, regardless of heat treatment. Chemical composition measurements showed that the glasses met the targeted concentrations for each oxide. In general, the measured PCT responses of the KT10-series glasses were well predicted by the DWPF models. The measured, normalized release values for silicon for some of the glasses fell above the 95% confidence interval for the predicted values; however, the PCT responses for these glasses remain considerably lower than that of the benchmark Environmental Assessment (EA) glass. The viscosities of the KT10-series glasses were generally well predicted by the DWPF model. The next step in this study will be to compile all of the data developed and further compare the measured properties and performance with those predicted by the current DWPF Product Composition Control System (PCCS) models. Recommendations will then be made as to which models, if any, may need to be modified in order to accommodate the material from SCIX into DWPF

Fox, K.; Edwards, T.

2011-04-26T23:59:59.000Z

286

E-Print Network 3.0 - acid monosodium salt Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Medicine 4 Browne, CB, Research Proposal, March 2009 Activation of the Inflammasome in Gout Summary: is an auto-inflammatory arthritis that can be triggered by the sedimentation...

287

Results Of Routine Strip Effluent Hold Tank And Decontaminated Salt Solution Hold Tank Samples From Modular Caustic-Side Solvent Extraction Unit During Macrobatch 5 Operations  

SciTech Connect (OSTI)

Strip Effluent Hold Tank (SEHT) and Decontaminated Salt Solution Hold Tank (DSSHT) samples from several of the ''microbatches'' of Integrated Salt Disposition Project (ISDP) Salt Batch (''Macrobatch'') 5 have been analyzed for {sup 238}Pu, {sup 90}Sr, {sup 137}Cs, and by Inductively Coupled Plasma Emission Spectroscopy (ICPES). The results indicate good decontamination performance within process design expectations. While the data set is sparse, the results of this set and the previous set of results for Macrobatch 4 samples indicate generally consistent operations. The DSSHT samples show continued presence of titanium, likely from leaching of the monosodium titanate in the Actinide Removal process (ARP).

Peters, T. B.; Fondeur, F. F.

2013-04-30T23:59:59.000Z

288

PAPER STUDY EVALUATIONS OF THE INTRODUCTION OF SMALL COLUMN ION EXCHANGE WASTE STREAMS TO THE DEFENSE WASTE PROCESSING FACILITY  

SciTech Connect (OSTI)

The objective of this paper study is to provide guidance on the impact of Monosodium Titanate (MST) and Crystalline Silicotitanate (CST) streams from the Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) flowsheet and glass waste form. A series of waste processing scenarios was evaluated, including projected compositions of Sludge Batches 8 through 17 (SB8 through SB17), MST additions, CST additions to Tank 40 or to a sludge batch preparation tank (Tank 42 or Tank 51, referred to generically as Tank 51 in this report), streams from the Salt Waste Processing Facility (SWPF), and two canister production rates. A wide array of potential glass frit compositions was used to support this assessment. The sludge and frit combinations were evaluated using the predictive models in the current DWPF Product Composition Control System (PCCS). The results were evaluated based on the number of frit compositions available for a particular sludge composition scenario. A large number of candidate frit compositions (e.g., several dozen to several hundred) is typically a good indicator of a sludge composition for which there is flexibility in forming an acceptable waste glass and meeting canister production rate commitments. The MST and CST streams will significantly increase the concentrations of certain components in glass, such as Nb{sub 2}O{sub 5}, TiO{sub 2}, and ZrO{sub 2}, to levels much higher than have been previously processed at DWPF. Therefore, several important assumptions, described in detail in the report, had to be made in performing the evaluations. The results of the paper studies, which must be applied carefully given the assumptions made concerning the impact of higher Ti, Zr, and Nb concentrations on model validity, provided several observations: (1) There was difficulty in identifying a reasonable number of candidate frits (and in some cases an inability to identify any candidate frits) when a waste loading of 40% is targeted for Sludge Batches 8, 16, and 17, regardless of the addition of SCIX or SWPF streams. This indicates that the blending strategy for these sludge batches should be reevaluated by Savannah River Remediation (SRR). (2) In general, candidate frits were available to accommodate CST additions to either Tank 40 or Tank 51. A larger number of candidate frits were typically available for the sludge batches when CST is added to Tank 51 rather than Tank 40, meaning that more compositional flexibility would be available for frit selection and DWPF operation. Note however that for SB8 and SB17, no candidate frits were available to accommodate CST going to Tank 40 with and without SWPF streams. The addition of SWPF streams generally improves the number of candidate frits available for processing of a given sludge batch. (3) The change in production rate from 40 Sludge Receipt and Adjustment Tank (SRAT) batches per year (i.e., the current production rate) to 75 SRAT batches per year, without SWPF streams included, had varied results in terms of the number of candidate frits available for processing of a given sludge batch. Therefore, this variable is not of much concern in terms of incorporating the SCIX streams. Note that the evaluation at 75 SRAT batches per year (approximately equivalent to 325 canisters per year) is more conservative in terms of the impact of SCIX streams as compared to a production rate of 400 canisters per year. Overall, the outcome of this paper study shows no major issues with the ability to identify an acceptable glass processing window when CST from the SCIX process is transferred to either Tank 40 or Tank 51. The assumptions used and the model limitations identified in this report must be addressed through further experimental studies, which are currently being performed. As changes occur to the planned additions of MST and CST, or to the sludge batch preparation strategy, additional evaluations will be performed to determine the potential impacts. As stated above, the issues with Sludge Batches 8, 16, and 17 should be further evaluated by SRR. A

Fox, K.; Edwards, T.; Stone, M.; Koopman, D.

2010-06-29T23:59:59.000Z

289

TASK TECHNICAL AND QUALITY ASSURANCE PLAN FOR OUT-OF-TANK DESTRUCTION OF TETRAPHENYLBORATE VIA WET AIR OXIDATION TECHNOLOGY: PHASE I - BENCH SCALE TESTS  

SciTech Connect (OSTI)

Tank 48H return to service is critical to the processing of high level waste (HLW) at Savannah River Site (SRS). Liquid Waste Disposition (LWD) management has the goal of returning Tank 48H to routine service by January 2010 or as soon as practical. Tank 48H currently holds legacy material containing organic tetraphenylborate (TPB) compounds from the operation of the In-Tank Precipitation process. This material is not compatible with the waste treatment facilities at SRS and must be removed or undergo treatment to destroy the organic compounds before the tank can be returned to Tank Farm service. Tank 48H currently contains {approx}240,000 gallons of alkaline slurry with about 2 wt % potassium and cesium tetraphenylborate (KTPB and CsTPB). The main radioactive component in Tank 48H is {sup 137}Cs. The waste also contains {approx}0.15 wt % Monosodium Titanate (MST) which has adsorbed {sup 90}Sr, U, and Pu isotopes. A System Engineering Evaluation of technologies/ideas for the treatment of TPB identified Wet Air Oxidation (WAO) as a leading alternative technology to the baseline aggregation approach. Over 75 technologies/ideas were evaluated overall. Forty-one technologies/ideas passed the initial screening evaluation. The 41 technologies/ideas were then combined to 16 complete solutions for the disposition of TPB and evaluated in detail. Wet Air Oxidation (WAO) is an aqueous phase process in which soluble or suspended waste components are oxidized using molecular oxygen contained in air. The process operates at elevated temperatures and pressures ranging from 150 to 320 C and 7 to 210 atmospheres, respectively. The products of the reaction are CO{sub 2}, H{sub 2}O, and low molecular weight oxygenated organics (e.g. acetate, oxalate). The basic flow scheme for a typical WAO system is as follows. The waste solution or slurry is pumped through a high-pressure feed pump. An air stream containing sufficient oxygen to meet the oxygen requirements of the waste stream is injected into the pressurized waste stream, and the air/liquid mixture is preheated to the required reactor inlet temperature. The reactor provides sufficient retention time to allow the oxidation to approach the desired level of organic decomposition. Typical reaction time is about 30-120 minutes. Heat exchangers are routinely employed to recover energy contained in the reactor effluent to preheat the waste feed/air entering the reactor. Auxiliary energy, usually steam, is necessary for startup and can provide trim heat if required. Since the oxidation reactions are exothermic, sufficient energy may be released in the reactor to allow the WAO system to operate without any additional heat input. After cooling, the oxidized reactor effluent passes through a pressure control valve where the pressure is reduced. A separator downstream of the pressure control valve allows the depressurized and cooled vapor to separate from the liquid. Typical industrial WAO applications have a feed flow rate of 1 to 220 gallons per minute (gpm) per train, with a chemical oxygen demand (COD) from 10,000 to 150,000 mg/L (higher CODs with dilution). Note that catalysts, such as homogeneous copper and iron, their heterogeneous counterparts, or precious metals can be used to enhance the effectiveness (i.e., to lower temperature, pressure, and residence time as well as increase oxidation efficiencies) of the WAO reaction if deemed necessary.

Adu-Wusu, K

2006-03-31T23:59:59.000Z

290

Synthesis and characterization of new cystalline titanates  

E-Print Network [OSTI]

present only when tetrapentyl ammonium bromide was used. Greater relative intensities of the peaks at 1490 cm-I and 1640 crn I were obtained when tetrabutyl ammonium bromide was used in the synthesis instead of tetrapropyl ammonium bromide. Exothermic...

Nge, Renita

1994-01-01T23:59:59.000Z

291

Composition and chemistry of Titan's stratosphere  

Science Journals Connector (OSTI)

...the mass of organic haze, an...absorption of solar radiation...balance between production and loss...the Hadley cell (Crespin...the ethane production rate from...mid-latitudes. A solar occultation...evidence for production of organic aerosols...

2009-01-01T23:59:59.000Z

292

Sputtering and heating of Titan's upper atmosphere  

Science Journals Connector (OSTI)

...2008JA013352 ) Strobel, D.F Aeronomic systems on planets, moons, and comets. In Comparative aeronomy in the Solar System M Mendillo, A Nagy, and H WaiteGeophysical...Shinagawa, and S Machida2004Global hybrid model of the solar wind interaction with the Venus ionosphere...

2009-01-01T23:59:59.000Z

293

Interaction of Titan's ionosphere with Saturn's magnetosphere  

Science Journals Connector (OSTI)

...the effects of both solar and magnetospheric...results from their hybrid model in comparison...effects compared with solar effects varies as...Earth's polar wind). It has also been...only Moon in the Solar System with a significant...

2009-01-01T23:59:59.000Z

294

The dynamics behind Titan's methane clouds  

Science Journals Connector (OSTI)

...Nature 420 : 795 – 797 . 4 Roe HG de Pater I Macintosh BA Gibbard...Icarus 157 : 254 – 258 . 5 Roe HG Bouchez AH Trujillo CA Schaller...E Barbara J Beurle K Brahic A Burns JA Charnoz S Cooper N Dawson DD Del...Science 310 : 474 – 477 . 8 Roe HG Brown ME Schaller EL Bouchez...

Jonathan L. Mitchell; Raymond T. Pierrehumbert; Dargan M. W. Frierson; Rodrigo Caballero

2006-01-01T23:59:59.000Z

295

Cytospin preparations are superior to common smears in the detection of monosodium urate crystals in low-cellular synovial fluids  

Science Journals Connector (OSTI)

In cases of gout with a low synovial fluid (SF) ... ,000/?l) SF samples of patients with gout. We determined the number of MSU crystals ... samples of 17 patients with MSU-crystal-proven gout and compared the two...

Christoph Robier; Mariana Stettin; Franz Quehenberger…

2014-12-01T23:59:59.000Z

296

Nondetection of Titan lightning radio emissions with Cassini/RPWS after 35 close Titan flybys  

E-Print Network [OSTI]

Hz [Schwingenschuh et al., 2007]. Additionally, a Schumann- like resonance was seen at 36 Hz, but its unusually high

Gurnett, Donald A.

297

LALP-07-018 Spring 2007 he MST-6 Materials Surface Science Investigations  

E-Print Network [OSTI]

Technology Division Facility Focus Collection of emitted photoelectrons along principal directions of an a-uranium(001 controlled water exposure indi- cates the clean conversion of Li2 O to LiOH and provides re- action kinetics

298

Microsoft Word - JMatyas_The Effects of Glass Doping _MST'13...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

EFFECTS OF GLASS DOPING, TEMPERATURE AND TIME ON THE MORPHOLOGY, COMPOSITION, AND IRON REDOX OF SPINEL CRYSTALS J. Maty 1 , J. E. Amonette 1 , R. K. Kukkadapu 1 , D. Schreiber...

299

Applications of k-Local MST for Topology Control and Broadcasting in  

E-Print Network [OSTI]

the local broadcast communication model. Test results are corroborated in the simulation study. We study way. More specifically, it is enough for our protocols when each node knows the distance to each of the sender. Otherwise, they communicate through multihop wireless links by using intermediate nodes to relay

Wang, Yu

300

Applications of k-Local MST for Topology Control and Broadcasting in Wireless Ad Hoc  

E-Print Network [OSTI]

the local broadcast communication model. Test results are corroborated in the simulation study. We study some other way. More specifically, it is enough for our protocols when each node knows the distance intermediate nodes to relay the messages. Consequently, each node in the wireless ad hoc network also acts

Li, Xiang-Yang

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Adaptive Beamforming Technique for Accurate Vertical Wind Measurements with Multichannel MST Radar  

E-Print Network [OSTI]

Center, Tachikawa, Japan TAKUJI NAKAMURA National Institute of Polar Research, Tokyo, Japan TORU SATO Research, Tachikawa, Tokyo 1908518, Japan. E-mail: knish@ieee.org DECEMBER 2012 N I S H I M U R A E T A L

Sato, Toru

302

CX-005766: Categorical Exclusion Determination | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

6: Categorical Exclusion Determination 6: Categorical Exclusion Determination CX-005766: Categorical Exclusion Determination Filter Testing with Static Test Cell CX(s) Applied: B3.6 Date: 04/20/2011 Location(s): Aiken, South Carolina Office(s): Environmental Management, Savannah River Operations Office Researchers plan to use the static test cell to conduct filter tests with a variety of filter media. The feed for the tests will consist of water, simulated Savannah River Site (SRS) salt solution, nitric acid, oxalic acid, sodium hydroxide, simulated SRS sludge, monosodium titanate, and crystalline silicotitanate. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005766.pdf More Documents & Publications CX-002994: Categorical Exclusion Determination CX-005870: Categorical Exclusion Determination CX-002992

303

9--Titan Invitational Newark, OH Result Pool A Pool B  

E-Print Network [OSTI]

University Ashland, OH 1:00 W 3-0 20-- Ohio University Lancaster © Lancaster, OH 6:00 W 3-0 23-- Lorain County Community College Lorain, OH 1:00 W 3-0 25-- Wayne College © Newark, OH 6:00 W 3-0 27-- Denison, OH 1:00 W 3-0 15-- Lorain County Community College Newark, OH 1:00 W 3-0 17-- Ohio University

304

Composition of Titan's ionosphere T. E. Cravens,1  

E-Print Network [OSTI]

the magnetosphere into the atmosphere of electrons with energies ranging from 25 eV up to about 2 keV is taking place. The absence of ionospheric composition measurements has been a major obstacle to understanding hydrocarbon and nitrile species [Waite et al., 2005a]. Solar radiation and energetic plasma from Saturn

Yelle, Roger V.

305

Titan's exosphere and its interaction with Saturn's magnetosphere  

Science Journals Connector (OSTI)

...entering certain atmospheric regions, as...and reveals the non-thermal character of their...2002Magnetospheric and plasma science with Cassini-Huygens...1963Planetary corona and atmospheric evaporation...Ray1997Photochemical sources of non-thermal neutrals for the...

2009-01-01T23:59:59.000Z

306

What Cassini-Huygens has revealed about Titan  

Science Journals Connector (OSTI)

......of the methane signal after landing, which suggests that the surface...Saturn, the meteorites or comets. Carbon monoxide (CO) was...setting a record for the furthest landing of a man-made machine ever...with surface conditions at the landing site found to be: 93.65......

Athena Coustenis

2007-04-01T23:59:59.000Z

307

Outer solar system, Europa, Titan and the possibility of life  

Science Journals Connector (OSTI)

......a captured asteroid or dead comet. Voyager images showed that...pixel. In the event of a soft landing (whether on an ocean or land...delivered by the impact of icy comets or asteroids (Owen and Bar-Nun...bodies (Chyba and Sagan 1992). Comets are mainly water, with carbon......

Julian A Hiscox

2000-10-01T23:59:59.000Z

308

Titan Simulates Earthquake Physics Necessary for Safer Building...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

haven't had a really big rupture since the city of Los Angeles existed," said Thomas Jordan, Southern California Earthquake Center (SCEC) director. Scientists predict this is...

309

Ion Tracks and Microstructures in Barium Titanate Irradiated...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

form around the amorphous core does not appear, probably due to a reversible phase transition as confirmed by an in-situ XRD study. Modeling and simulation are also attempted to...

310

On the Phase Transition of Barium Titanate Crystal  

Science Journals Connector (OSTI)

......On the Phase Transition of Barium...ment of Ti ions Y2" in the...correspond to the transition points from a tetragonal phase to cubic and orthorhombic phases respectively...shift of Ti IOns due to the...This transition point -4......

Wataru Kinase

1959-11-01T23:59:59.000Z

311

The search for Titan lightning radio emissions G. Fischer1  

E-Print Network [OSTI]

was caused by lightning exciting a Schumann resonance in the ionospheric cavity. In a further investigation instability mechanism. Morente et al. [2008] claimed the extraction of six Schumann resonances in agreement

Gurnett, Donald A.

312

The origin of Titan's atmosphere: some recent advances  

Science Journals Connector (OSTI)

...instead of O2. This mixture of gases resembles the putative composition...coma of the Oort cloud comet Hale-Bopp, CO and CO2 were, respectively...the 1 per cent methane in Hale-Bopp's coma would provide far more of this gas than is necessary to account...

2009-01-01T23:59:59.000Z

313

Solvable problems - Titan expands the realm of the possible ...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

do with a thousand-fold increase in computing power, ORNL computational scientist Jim Hack recalls, they all had the same need: the ability to create more detailed simulations....

314

DUAL ORIGIN OF AEROSOLS IN TITAN'S DETACHED HAZE LAYER  

SciTech Connect (OSTI)

We have analyzed scattered light profiles from the Cassini Imaging Science Subsystem, taken at the limb and at several large phase angles. We also used results from an occultation observed by Ultraviolet Imaging Spectrograph in the ultraviolet. We found that particles responsible for the scattering in the detached haze have an effective radius around 0.15 {mu}m and the aerosol size distribution follows a power law (exponent about -4.5). We discuss these results along with microphysical constraints and thermal equilibrium of the detached haze, and we conclude that only a strong interaction with atmospheric dynamics can explain such a structure.

Cours, T.; Burgalat, J.; Rannou, P. [Groupe de Spectrometrie Moleculaire et Atmospherique (GSMA), CNRS UMR-6089, Universite de Reims Champagne-Ardenne, 51687 Reims Cedex 2 (France); Rodriguez, S.; Brahic, A. [Laboratoire AIM, Universite Paris 7, CNRS UMR-7158, CEA-Saclay/DSM/IRFU/SAp, 91191 Gif/Yvette (France); West, R. A., E-mail: thibaud.cours@univ-reims.fr [Jet Propulsion Laboratory M/S 169-237, Pasadena, CA 91109 (United States)

2011-11-10T23:59:59.000Z

315

Evolution of Titan and implications for its hydrocarbon cycle  

Science Journals Connector (OSTI)

...TK), in which gas molecules have very low solubility, and so potentially very large amounts of gas compounds, notably...ammonia has a high solubility in water, so that most of...then converted into nitrogen. Most of the methane...

2009-01-01T23:59:59.000Z

316

Torque magnetometry of an amorphous-alumina/strontium-titanate interface  

E-Print Network [OSTI]

We report torque magnetometry measurements of an oxide heterostructure consisting of an amorphous Al[subscript 2]O[subscript 3] thin film grown on a crystalline SrTiO[subscript 3] substrate (a-AO/STO) by atomic layer ...

Lee, S. W.

317

Hierarchical Structure-Ferroelectricity Relationships of Barium Titanate Particles  

E-Print Network [OSTI]

approaching the same scale in the process of miniaturization. The identification of the most influential, have been well-studied in a bulk BaTiO3 crystal. Correspondingly, the cooperative effect scale in the process of miniatur- ization. The identification of the most influential struc- ture among

Aksay, Ilhan A.

318

Seasonal variations in Titan's atmospheric composition: observations and  

E-Print Network [OSTI]

(VIMS) 0.5-5 µm [Haze, CH4] 7-1000 µm [T, Composition, Haze] 0.4-1 µm [Haze] Cassini has 3 main pole to equator in stratosphere Contours = Zonal Wind (m/s) = photochemical lifetime White regions

Kaiser, Ralf I.

319

Radiation damage effects in candidate titanates for Pu disposition: Zirconolite  

Science Journals Connector (OSTI)

Results from studies of radiation-induced damage from the alpha decay of 238Pu on the density and crystal structure of a nominally phase-pure zirconolite and two other zirconolite-bearing ceramics are discussed. Macro and micro swelling were found to be temperature independent, whereas the density determined with He gas pycnometry was temperature dependent. Approximately 2.6 × 1018 ?/g were needed to render the specimens X-ray amorphous– more to saturate the swelling. Unlike pyrochlore-based ceramics, we did not observe any phase changes associated with storage temperature and damage ingrowth. The forward dissolution rate at a pH value of 2 for material containing essentially all zirconolite is 1.7(4) × 10?3 g/(m2 d) with very little pH dependence and no dependence on the amount of radiation-induced damage. Even after the radiation-induced swelling saturated, the specimens remained physically intact with no evidence for microcracking. Thus, the material remains physically a viable material for the disposition of surplus weapons-grade Pu.

D.M. Strachan; R.D. Scheele; E.C. Buck; A.E. Kozelisky; R.L. Sell; R.J. Elovich; W.C. Buchmiller

2008-01-01T23:59:59.000Z

320

Shock: South Korea wins Battle of nuclear titans  

SciTech Connect (OSTI)

A South Korean consortium won the contract to build and operate four nuclear power plants in Abu Dhabi valued at $20.4 billion. The deal was significant since it is the first major nuclear contract of its kind awarded in the rapidly growing Persian Gulf region, and signals the rise of Korea as an exporter of nuclear know-how.

NONE

2010-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Synthesis and electrochemical characterisation of electrospun lithium titanate ultrafine fibres  

Science Journals Connector (OSTI)

Lithium acetate dihydrate (>99.0 %, Sigma-Aldrich ... %, Sigma-Aldrich) were used for the synthesis of Li4Ti5O12. PVP (Aldrich, M w = 3.6 × 105) was used as the base polymer for the electrospinn...

C. P. Sandhya; Bibin John; C. Gouri

2013-09-01T23:59:59.000Z

322

Metasomatic mineral titanate complexing in the upper mantle  

Science Journals Connector (OSTI)

... S.E.H. et al5 illustrated (their Fig. 16) an assemblage of chromian spinel cores rimmed by lindsleyite and this assemblage prompted a more detailed study of ... cores rimmed by lindsleyite and this assemblage prompted a more detailed study of spinel-forming reactions during metasomatism. Samples examined were collected from the waste dumps (Bultfontein Floors ...

Stephen E. Haggerty; A. J. Erlank; Ian E. Grey

1986-02-27T23:59:59.000Z

323

A modified method for barium titanate nanoparticles synthesis  

SciTech Connect (OSTI)

Graphical abstract: TEM micrograph of BaTiO{sub 3} powders synthesized at 800 Degree-Sign C for 1 h and SAED pattern (inset) of BaTiO{sub 3} powders. In this research, a modified, cost efficient and quick sol-gel procedure was used for preparation of BaTiO{sub 3} nanoparticles. Highlights: Black-Right-Pointing-Pointer A modified process was used for preparation. Black-Right-Pointing-Pointer The modified process led to preparation of finer BaTiO{sub 3} nanoparticles in shorter period of time and lower temperature contrary to previous researches. Black-Right-Pointing-Pointer The proposed procedure seems to be more preferable for mass production. -- Abstract: In this research, a modified, cost effective sol-gel procedure applied to synthesize BaTiO{sub 3} nanoparticles. XRD and electron microscopy (SEM and TEM) applied for microstructural characterization of powders. The obtained results showed that the type of precursors, their ratio and the hydrolysis conditions had a great effect on time, temperature and therefore the costs of the synthesis process. By selection, utilization of optimized precursor's type, hydrolysis conditions, fine cubic BaTiO{sub 3} nanoparticles were synthesized at low temperature and in short time span (1 h calcination at 800 Degree-Sign C). The proposed procedure seems to be more preferable for mass production. The result indicated that the polymorphic transformation to tetragonal (ferroelectric characteristic) occurred at 900 Degree-Sign C, which might be an indication of being nanosized.

Ashiri, R., E-mail: ro_ashiri@iaud.ac.ir [Department of Materials Science and Engineering, Dezful Branch, Islamic Azad University, P.O. Box 313, Dezful (Iran, Islamic Republic of); Nemati, Ali [Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Tehran (Iran, Islamic Republic of)] [Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Tehran (Iran, Islamic Republic of); Sasani Ghamsari, M. [Solid State Lasers Research Group, Laser and Optics Research School, NSTRI, P.O. Box 11365-8486, Tehran (Iran, Islamic Republic of)] [Solid State Lasers Research Group, Laser and Optics Research School, NSTRI, P.O. Box 11365-8486, Tehran (Iran, Islamic Republic of); Sanjabi, S. [Nanomaterials Group, Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of)] [Nanomaterials Group, Department of Materials Engineering, Tarbiat Modares University, P.O. Box 14115-143, Tehran (Iran, Islamic Republic of); Aalipour, M. [Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Tehran (Iran, Islamic Republic of)] [Department of Materials Science and Engineering, Sharif University of Technology, P.O. Box 11365-9466, Tehran (Iran, Islamic Republic of)

2011-12-15T23:59:59.000Z

324

Dielectric Properties of Strontium Titanate at Low Temperature  

Science Journals Connector (OSTI)

The dielectric properties of annealed single crystals of SrTiO3 have been measured over the temperature range from 5 to 300 °K. At temperatures below 50 °K, electric double hysteresis loops are observed and associated changes in weak-field permittivity under dc bias have been measured. It is shown that a phenomenological analysis based on the simple Kittel function accounts satisfactorily for many aspects of the dielectric behavior of SrTiO3 crystals.

M. A. Saifi and L. E. Cross

1970-08-01T23:59:59.000Z

325

Laboratory Scoping Tests Of Decontamination Of Hanford Waste Treatment Plant Low Activity Waste Off-Gas Condensate Simulant  

SciTech Connect (OSTI)

The Hanford Waste Treatment and Immobilization Plant (WTP) Low Activity Waste (LAW) vitrification facility will generate an aqueous condensate recycle stream (LAW Off-Gas Condensate) from the off-gas system. The baseline plan for disposition of this stream is to send it to the WTP Pretreatment Facility, where it will be blended with LAW, concentrated by evaporation and recycled to the LAW vitrification facility again. Alternate disposition of this stream would eliminate recycling of problematic components, and would enable de-coupled operation of the LAW melter and the Pretreatment Facilities. Eliminating this stream from recycling within WTP would also decrease the LAW vitrification mission duration and quantity of glass waste. This LAW Off-Gas Condensate stream contains components that are volatile at melter temperatures and are problematic for the glass waste form. Because this stream recycles within WTP, these components accumulate in the Condensate stream, exacerbating their impact on the number of LAW glass containers that must be produced. Approximately 32% of the sodium in Supplemental LAW comes from glass formers used to make the extra glass to dilute the halides to acceptable concentrations in the LAW glass, and diverting the stream reduces the halides in the recycled Condensate and is a key outcome of this work. Additionally, under possible scenarios where the LAW vitrification facility commences operation prior to the WTP Pretreatment facility, identifying a disposition path becomes vitally important. This task seeks to examine the potential treatment of this stream to remove radionuclides and subsequently disposition the decontaminated stream elsewhere, such as the Effluent Treatment Facility (ETF), for example. The treatment process envisioned is very similar to that used for the Actinide Removal Process (ARP) that has been operating for years at the Savannah River Site (SRS), and focuses on using mature radionuclide removal technologies that are also compatible with longterm tank storage and immobilization methods. For this new application, testing is needed to demonstrate acceptable treatment sorbents and precipitating agents and measure decontamination factors for additional radionuclides in this unique waste stream. The origin of this LAW Off-Gas Condensate stream will be the liquids from the Submerged Bed Scrubber (SBS) and the Wet Electrostatic Precipitator (WESP) from the LAW melter off-gas system. The stream is expected to be a dilute salt solution with near neutral pH, and will likely contain some insoluble solids from melter carryover. The soluble components are expected to be mostly sodium and ammonium salts of nitrate, chloride, and fluoride. This stream has not been generated yet and will not be available until the WTP begins operation, but a simulant has been produced based on models, calculations, and comparison with pilot-scale tests. One of the radionuclides that is volatile and expected to be in high concentration in this LAW Off-Gas Condensate stream is Technetium-99 ({sup 99}Tc). Technetium will not be removed from the aqueous waste in the Hanford WTP, and will primarily end up immobilized in the LAW glass by repeated recycle of the off-gas condensate into the LAW melter. Other radionuclides that are also expected to be in appreciable concentration in the LAW Off-Gas Condensate are {sup 129}I, {sup 90}Sr, {sup 137}Cs, and {sup 241}Am. This report discusses results of preliminary radionuclide decontamination testing of the simulant. Testing examined use of Monosodium Titanate (MST) to remove {sup 90}Sr and actinides, inorganic reducing agents for {sup 99}Tc, and zeolites for {sup 137}Cs. Test results indicate that excellent removal of {sup 99}Tc was achieved using Sn(II)Cl{sub 2} as a reductant, coupled with sorption onto hydroxyapatite, even in the presence of air and at room temperature. This process was very effective at neutral pH, with a Decontamination Factor (DF) >577 in two hours. It was less effective at alkaline pH. Conversely, removal of the cesium was more effective at alka

Taylor-Pashow, Kathryn M.; Nash, Charles A.; Crawford, Charles L.; McCabe, Daniel J.; Wilmarth, William R.

2014-01-21T23:59:59.000Z

326

SAMPLE RESULTS FROM THE INTEGRATED SALT DISPOSITION PROGRAM MACROBATCH 5 TANK 21H QUALIFICATION MST, ESS AND PODD SAMPLES  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) performed experiments on qualification material for use in the Integrated Salt Disposition Program (ISDP) Batch 5 processing. This qualification material was a composite created from recent samples from Tank 21H and archived samples from Tank 49H to match the projected blend from these two tanks. Additionally, samples of the composite were used in the Actinide Removal Process (ARP) and extraction-scrub-strip (ESS) tests. ARP and ESS test results met expectations. A sample from Tank 21H was also analyzed for the Performance Objectives Demonstration Document (PODD) requirements. SRNL was able to meet all of the requirements, including the desired detection limits for all the PODD analytes. This report details the results of the Actinide Removal Process (ARP), Extraction-Scrub-Strip (ESS) and Performance Objectives Demonstration Document (PODD) samples of Macrobatch (Salt Batch) 5 of the Integrated Salt Disposition Program (ISDP).

Peters, T.; Fink, S.

2012-04-24T23:59:59.000Z

327

Time-resolved ion energy distribution measurements using an advanced neutral particle analyzer on the MST reversed-field pinch  

SciTech Connect (OSTI)

An advanced neutral particle analyzer (ANPA) capable of simultaneously measuring hydrogen and deuterium ions of energies up to 45 keV has recently been developed for use on the Madison Symmetric Torus. The charge-to-mass separation allows for separate analysis of bulk deuterium ions and hydrogen ions injected with a 1 MW, 25 keV neutral beam. Orientation of the ANPA allows sampling of different regions of ion velocity space; a radial viewport favors collection of ions with high v{sub Up-Tack }/ Double-Vertical-Line v Double-Vertical-Line while a recently installed tangential viewport favors ions with high v{sub Double-Vertical-Line Double-Vertical-Line }/ Double-Vertical-Line v Double-Vertical-Line , such as those from the core-localized fast ion population created by the neutral beam. Signals are observed in the ANPA's highest energy channels during periodic magnetic reconnection events, which are drivers of anisotropic, non-Maxwellian ion energization in the reversed-field pinch. ANPA signal strength is dependent on the background neutral density, which also increases during magnetic reconnection events, so careful analysis must be performed to identify the true change in the ion distribution. A Monte Carlo neutral particle tracing code (NENE) is used to reconstruct neutral density profiles based on D{sub {alpha}} line emission, which is measured using a 16-chord filtered photodiode array.

Eilerman, S.; Anderson, J. K.; Reusch, J. A. [University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Liu, D. [University of California-Irvine, Irvine, California 92697 (United States); Fiksel, G. [University of Rochester, Rochester, New York 14623 (United States); Polosatkin, S.; Belykh, V. [Budker Institute of Nuclear Physics SB RAS, Novosibirsk (Russian Federation)

2012-10-15T23:59:59.000Z

328

Momentum  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

complimentary copy. Redistribution subject to AIP license or copyright, see http:php.aip.orgphpcopyright.jsp experiment MST. Preliminary MST measurements also show...

329

CoverSheet  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

instrument contacts at the Advanced Photon Source. Darrin Byler (MST-8) and Pallas Papin (Metallurgy, MST-6) made the samples. The Laboratory Directed Research and...

330

Results Of Routine Strip Effluent Hold Tank, Decontaminated Salt Solution Hold Tank, And Caustic Wash Tank Samples From Modular Caustic-Side Solvent Extraction Unit During Macrobatch 4 Operations  

SciTech Connect (OSTI)

Strip Effluent Hold Tank (SEHT), Decontaminated Salt Solution Hold Tank (DSSHT), and Caustic Wash Tank (CWT) samples from several of the ?microbatches? of Integrated Salt Disposition Project (ISDP) Salt Batch (?Macrobatch?) 4 have been analyzed for {sup 238}Pu, {sup 90}Sr, {sup 137}Cs, and by inductively-coupled plasma emission spectroscopy (ICPES). Furthermore, samples from the CWT have been analyzed by a variety of methods to investigate a decline in the decontamination factor (DF) of the cesium observed at MCU. The results indicate good decontamination performance within process design expectations. While the data set is sparse, the results of this set and the previous set of results for Macrobatch 3 samples indicate generally consistent operations. There is no indication of a disruption in plutonium and strontium removal. The average cesium DF and concentration factor (CF) for samples obtained from Macrobatch 4 are slightly lower than for Macrobatch 3, but still well within operating parameters. The DSSHT samples show continued presence of titanium, likely from leaching of the monosodium titanate in Actinide Removal Process (ARP).

Peters, T. B.; Fink, S. D.

2012-10-25T23:59:59.000Z

331

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, The Role of Ion-Neutral Collisions in Titan's1  

E-Print Network [OSTI]

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, The Role of Ion-Neutral Collisions and Engineering Division, Southwest Research Institute, San Antonio, Texas, USA. 2 Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia, USA. D R A F T July 31, 2013, 10:02am D R A F

Johnson, Robert E.

332

A Guidebook for Low-Carbon Development at the Local Level  

E-Print Network [OSTI]

Coal mining (production) Cement Iron-making Steel-making Electricity Pulp & paper Alcohol Monosodium glutamate Electrolytic aluminum Citric acid Coking

Zhou, Nan

2012-01-01T23:59:59.000Z

333

Barium Titanate Nanoparticles as Exogenous Contrast Agents in Second Harmonic Optical Coherence Tomography  

E-Print Network [OSTI]

fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Brian Applegate Committee Members, Kristen Maitland Jim Ji Head of Department, Gerard Cote May 2013 Major Subject: Biomedical Engineering...-OCT without producing inferior reflector artifacts. 38 REFERENCES Applegate, Brian. (2004). Polarization-resolved Second-harmonic-generation Optical Coherence Tomography in Collagen. Optics Letters, 29(19), 2252-2254. H?usler G., Lindner M. W...

Pearson, Jeremy T

2013-05-06T23:59:59.000Z

334

Epitaxial growth of lead zirconium titanate thin films on Ag buffered Si substrates using rf sputtering  

E-Print Network [OSTI]

substrates such as SrTiO3, MgO, and LaAlO3 using different deposition methods sputtering, pubed laser with good dif- fusion barrier properties and epitaxy with Si need to be used. In this work, we investigated grown epitaxially on HF-etched Si 001 with cube-on-cube orientation relationship, though the lattice

Laughlin, David E.

335

AVIATR—Aerial Vehicle for In-situ and Airborne Titan Reconnaissance  

Science Journals Connector (OSTI)

The supply of 238Pu (plutonium-238) is critical for our ability to explore the outer solar system, and also a potentially limiting resource. The radioactive decay of plutonium-238 provides the heat that powers RT...

Jason W. Barnes; Lawrence Lemke; Rick Foch; Christopher P. McKay…

2012-03-01T23:59:59.000Z

336

NOVEMBER Results 3/4--Titan Tip-off Classic Tip-off Results  

E-Print Network [OSTI]

-39 16-- ORC State Tournament @ Newark, OH Results Winner 1:00 Ohio State Mansfield vs. Newark Campus 95-55 Chillicothe 17-- ORC State Tournament @ Newark, OH Results Winner 1:00 Ohio Univeristy Zanesvilel vs. Newark University Chillicothe 80-71 Clermont 23-- ORC State Finals @ Chillicothe, OH Results Winner 1:00 Ohio

337

Numerical and Experimental Modeling of Natural Convection for a Cryogenic Prototype of a Titan  

E-Print Network [OSTI]

in Sutherland's law D = diameter g = gravitation acceleration h = convection coefficient k = thermal

Colonius, Tim

338

Titanate and titania nanostructures and nanostructure assemblies, and methods of making same  

DOE Patents [OSTI]

The invention relates to nanomaterials and assemblies including, a micrometer-scale spherical aggregate comprising: a plurality of one-dimensional nanostructures comprising titanium and oxygen, wherein the one-dimensional nanostructures radiate from a hollow central core thereby forming a spherical aggregate.

Wong, Stanislaus S; Mao, Yuanbing

2013-05-14T23:59:59.000Z

339

The sound of Titan a role for acoustics in space exploration  

E-Print Network [OSTI]

's Venera missions to Venus). in early 2005 will undertake a 2.5 hour parachute descent However, were is generated the features associated with the terrestrial water cycle: seas, by environmental processes breakdown of ammonia (NH3) deposited from comets, producing N2 and hydrogen (which is sufficiently light

Sóbester, András

340

A tunable metamaterial dependent on electric field at terahertz with barium strontium titanate thin film  

SciTech Connect (OSTI)

A tunable metamaterial with resonance frequency at terahertz (THz) was developed. Electromagnetic response of the metamaterial was characterized with THz time domain spectrometer at various direct current electric fields. The resonance frequency increased monotonously with increasing electric field. The finite difference time domain method was used to simulate the transmission spectra of the metamaterial at THz frequencies. By comparing the simulated resonance frequency with the experimental curve, dielectric property of the Ba{sub 0.6}Sr{sub 0.4}TiO{sub 3} (BST60) thin film at THz, over 0–33?kV/cm, was evaluated.

Bian, Yanlong; Zhai, Jiwei, E-mail: apzhai@tongji.edu.cn [Function Materials Research Laboratory, Tongji University, Shanghai 200092 (China); Wu, Chao; Li, Hongqiang [Department of Physics Science and Engineering, Tongji University, Shanghai 200092 (China)

2014-01-27T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Searching Room Temperature Ferromagnetism in Wide Gap Semiconductors Fe-doped Strontium Titanate and Zinc Oxide  

E-Print Network [OSTI]

Scientic findings in the very beginning of the millennium are taking us a step further in the new paradigm of technology: spintronics. Upgrading charge-based electronics with the additional degree of freedom of the carriers spin-state, spintronics opens a path to the birth of a new generation of devices with the potential advantages of non-volatility and higher processing speed, integration densities and power efficiency. A decisive step towards this new age lies on the attribution of magnetic properties to semiconductors, the building block of today's electronics, that is, the realization of ferromagnetic semiconductors (FS) with critical temperatures above room temperature. Unfruitful search for intrinsic RT FS lead to the concept of Dilute(d) Magnetic Semiconductors (DMS): ordinary semiconductor materials where 3 d transition metals randomly substitute a few percent of the matrix cations and, by some long-range mechanism, order ferromagnetically. The times are of intense research activity and the last few ...

Pereira, LMC; Wahl, U

342

Strain effect on coercive field of epitaxial barium titanate thin films S. Choudhury,1,a  

E-Print Network [OSTI]

reduced to zero and coercive field electric field re- quired to reduce the net polarization to zero . From of magnitude higher compared to a thin film under zero substrate strain.11 However, some reports show

Chen, Long-Qing

343

Correlation between number of ferroelectric variants and coercive field of lead ziconate titanate single crystals  

E-Print Network [OSTI]

Understanding the magnitude of coercive fields, the external electric field that results in zero net field is defined as the magnitude of an external electric field, which results in zero net polarization. Theoretically, the coercive field calculated from a phenomenological thermodynamic theory assuming a perfect

Chen, Long-Qing

344

Precipitation-induced surface brightenings seen on Titan by Cassini VIMS and ISS  

E-Print Network [OSTI]

Abstract Observations from Cassini VIMS and ISS show localized but extensive surface brightenings in the wake of the 2010 September cloudburst. Four separate areas, all at similar latitude, show similar changes: Yalaing ...

Barnes, Jason W

345

Global mapping and characterization of Titan's dune fields with Cassini: Correlation between RADAR and VIMS observations  

E-Print Network [OSTI]

and VIMS observations S. Rodriguez a, , A. Garcia a , A. Lucas a , T. Appéré a , A. Le Gall b , E. Reffet the Cassini RADAR and VIMS (Visual and Infrared Mapping Spectrometer) images ­ the latter being empirically. Furthermore, the strong correlation between RADAR-mapped dunes and the VIMS ``dark brown'' unit (72%) allows

Narteau, Clément

346

Electrical bistability in a composite of polymer and barium titanate nanoparticles  

Science Journals Connector (OSTI)

...2337252 ) Reed, M. A. , J. Chen, A. M. Rawlett, D. W. Price, and J. M. Tour 2001 Molecular random access memory cell...2006 Electronic memory effects in a sexithiophene-poly(ethylene oxide) block copolymer doped with NaCl. Combined diode and...

2009-01-01T23:59:59.000Z

347

Effect of Microwave Frequency on Hydrothermal Synthesis of Nanocrystalline Tetragonal Barium Titanate  

E-Print Network [OSTI]

Effect of Microwave Frequency on Hydrothermal Synthesis of Nanocrystalline Tetragonal Barium) with particle sizes ranging from 30 to 100 nm were synthesized via microwave-hydrothermal routes at various, but increased gradually with extended aging time in variable frequency (3-5.5 GHz to 1 s) processing

Dutta, Prabir K.

348

Barium Titanate Nanoparticles in Block Copolymer Tu Lee,*,, Nan Yao, Hiroaki Imai,, and Ilhan A. Aksay,  

E-Print Network [OSTI]

is not compromised. Nanometer-sized cubic BaTiO3 particles are commonly crystallized by hydrothermal processing from)6) on the hydroxylated polybutadiene matrix, and (3) hydrothermal reduction of the organometallic complexes in an NH3/H2O °C. Lilley and Wusirika processed monosized powders of cubic BaTiO3 by dispersing TiO2 powders

Aksay, Ilhan A.

349

A kinetic model for ion exchange between cesium and sodium using silico-titanates  

E-Print Network [OSTI]

over this entire range of pH. This unique characteristic makes the TAMS material desirable. Two other available organic ion exchangers (carboxylic acid based resin and resorcinol formaldehyde resin) show some capability for cesium removal; however... et al. (1947) used this method successfully to predict their data with the phenol-formaldehyde resinous exchanger, Amberlite IR-1. Similarly, Nachod and Wood (1944) and Turse and Rieman (1961) found their data fitted quite well on both zeolites...

Nguyen, Luan Thanh

1994-01-01T23:59:59.000Z

350

Planetary and Space Science 55 (2007) 18451876 Huygens' entry and descent through Titan's atmosphere--Methodology  

E-Print Network [OSTI]

, Austria c Department of Electrical and Computer Engineering, University of Idaho, Moscow, ID 83844-1023, USA d ESA Research and Scientific Support Department, ESTEC, 2200 AG Noordwijk, The Netherlands e the scientific payload. This paper presents the methodology and discuss the results of the reconstruction effort

Atkinson, David H.

351

Bifunctional Rhodium Cocatalysts for Photocatalytic Steam Reforming of Methane over Alkaline Titanate  

Science Journals Connector (OSTI)

Biomethane is one of the possible hydrogen sources. ... (2-9) The PSRM using biomethane can be considered as a sustainable technology for conversion of solar energy into the storable chemical potential of hydrogen. ...

Katsuya Shimura; Hiromasa Kawai; Tomoko Yoshida; Hisao Yoshida

2012-09-06T23:59:59.000Z

352

THE HUYGENS DOPPLER WIND EXPERIMENT Titan Winds Derived from Probe Radio Frequency Measurements  

E-Print Network [OSTI]

Doppler calibrations conducted with simulated Huygens signals uplinked from ground (Probe Relay Tests to the longer free-space propagation distance. Specific secondary science objectives of DWE include measurements

353

Accelerated testing of a lanthanum-modified lead zirconate titanate capacitor.  

E-Print Network [OSTI]

??This literature begins by introducing the history of reliability and safety engineering. From here, a statistical foundation is laid with an emphasis on the distribution… (more)

Smith, Cartel

2011-01-01T23:59:59.000Z

354

Sample Results From The Interim Salt Disposition Program Macrobatch 7 Tank 21H Qualification Samples  

SciTech Connect (OSTI)

Savannah River National Laboratory (SRNL) analyzed samples from Tank 21H in support of qualification of Macrobatch (Salt Batch) 7 for the Interim Salt Disposition Program (ISDP). An ARP and several ESS tests were also performed. This document reports characterization data on the samples of Tank 21H as well as simulated performance of ARP/MCU. No issues with the projected Salt Batch 7 strategy are identified, other than the presence of visible quantities of dark colored solids. A demonstration of the monosodium titanate (0.2 g/L) removal of strontium and actinides provided acceptable 4 hour average decontamination factors for Pu and Sr of 3.22 and 18.4, respectively. The Four ESS tests also showed acceptable behavior with distribution ratios (D(Cs)) values of 15.96, 57.1, 58.6, and 65.6 for the MCU, cold blend, hot blend, and Next Generation Solvent (NGS), respectively. The predicted value for the MCU solvent was 13.2. Currently, there are no models that would allow a prediction of extraction behavior for the other three solvents. SRNL recommends that a model for predicting extraction behavior for cesium removal for the blended solvent and NGS be developed. While no outstanding issues were noted, the presence of solids in the samples should be investigated in future work. It is possible that the solids may represent a potential reservoir of material (such as potassium) that could have an impact on MCU performance if they were to dissolve back into the feed solution. This salt batch is intended to be the first batch to be processed through MCU entirely using the new NGS-MCU solvent.

Peters, T. B.; Washington, A. L. II

2013-08-08T23:59:59.000Z

355

INL Portal Support  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Planned Monthly Maintenance The INL Portal may temporarily be down between 6:00 PM MST and 10:00 PM MST on the third Thursday of each month for server maintenance....

356

Top 500 List Recognizes Fastest Supercomputers | Department of...  

Energy Savers [EERE]

List Recognizes Fastest Supercomputers June 30, 2014 - 5:25pm Addthis Titan 1 of 4 Titan Oak Ridge National Laboratory's Titan has a theoretical peak performance of more than 27...

357

E-Print Network 3.0 - alexis mission recovery Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Monica Buelna Mother of Alexis Buelna Liberal Studies Major Nanette Clippinger... Titan Parents Hotline: (657) 278-2958 E-mail: titanparents@fullerton.edu Titan Parents...

358

The UC Davis Emerging Lithium Battery Test Project  

E-Print Network [OSTI]

lithium titanate oxide in the negative electrode indicate cycle life in excesslithium titanate oxide in the negative electrode indicate cycle life in excess

Burke, Andy; Miller, Marshall

2009-01-01T23:59:59.000Z

359

CSUF Clubs & Organizations!!! What can the Titan Pride Center do for you? The Titan Pride Center wants to help get the word out about CSUF clubs and organizations! Check out all of the ways we can help your group!  

E-Print Network [OSTI]

wants to help get the word out about CSUF clubs and organizations! Check out all of the ways we can help of your promotional materials. We will have a table ready for you and even help promote with you! Puzzle

de Lijser, Peter

360

http://www.sgvtribune.com/environment-and-nature/20140212/officials-urge-californians-to-prepare-for-climate-change Page 1 of 3 Mar 03, 2014 05:21:56PM MST  

E-Print Network [OSTI]

to hydroelectric energy to weather forecasting. The ongoing statewide drought may be a precursor of things to come Climate Risks," said Ann Chan, deputy secretary for climate and energy at the California Natural Resources change. Residents of Venice, Wilmington and San Pedro are among the most vulnerable because

Rohs, Remo

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Electrically and magnetically tunable phase shifters based on a barium strontium titanate-yttrium iron garnet layered structure  

E-Print Network [OSTI]

to rapidly change the dielectric constant of a ferroelectric material under the application of a dc electric, by incorporating a ferrite material into a device, one gains the ability to change both the dielectric constant, a phase shifter will have changing characteris- tic impedance as it changes its phase. In this work, we em

362

Ion Tracks and Microstructures in Barium Titanate Irradiated with Swift Heavy Ions: A Combined Experimental and Computational Study  

SciTech Connect (OSTI)

Tetragonally structured BaTiO3 single crystals were irradiated using 635 MeV 238U+ ions to fluences of 1E7, 5E10 and 1.4E12 ions/cm2 at room temperature. Subsequent sample characterizations were performed using ion channeling, x-ray diffraction (XRD), helium ion microscopy, and transmission electron microscopy. The results show that there are lattice relaxation and recovery of pre-existing defects in the irradiated samples. Various structures representing different regimes of electronic and nuclear interactions along the ion track are observed. The track on the surface has an amorphous core of up to ~10 nm in diameter, surrounded by a strained lattice structure. The core size is roughly proportional to the square root of the electronic stopping power. Satellite-like defects around the core are also present. The ring of cubic phase expected to form around the amorphous core does not appear, probably due to a reversible phase transition as confirmed by an in-situ XRD study. Modeling and simulation are also attempted to interpret the data and gain physical insights. We have developed a partial charge model for cubic BaTiO3 that reproduces its lattice constants, elastic constants, and melting temperature. Using the interatomic potential, we have performed molecular dynamics simulations of the irradiation damage in BaTiO3. The results show that an amorphous track of ~1.2 nm in radius forms under thermal energy deposition at dE(T)/dx = 5 keV/nm. At 20 keV/nm, the radius increases to ~4.5 nm with an order of magnitude increase in the number of defects. The simulation also reveals details of the bonding environments and shows that the amorphous zones produced at different dE(T)/dx values have different densities. The combined experimental and computational data suggest that there is a significant interfacial recrystallization of the as-created amorphous cores during the cooling-down stage of thermal spikes.

Jiang, Weilin; Devanathan, Ramaswami; Sundgren, Christina J.; Ishimaru, Manabu; Sato, Kazuhisa; Varga, Tamas; Manandhar, Sandeep; Benyagoub, Abdenacer

2013-12-11T23:59:59.000Z

363

Visible-Light Photochemical Activity of Heterostructured Core-Shell Materials Composed of Selected Ternary Titanates and Ferrites  

E-Print Network [OSTI]

-24 For example, CdS,25 Cu2O,26 BiOI,22 ZnFe2O4,27 and CuInS2,28 were combined with TiO2 for visible °C shows the highest reaction rate. Fe-doped TiO2, which absorbs visible light, did not show enhanced active under visible light, such as metal and nonmetal doping,3,8-12 dye sensitization,13

Rohrer, Gregory S.

364

On the State of Water Ice on Saturn's Moon Titan and Implications to Icy Bodies in the Outer Solar System  

E-Print Network [OSTI]

experimental study to investigate the amorphization of crystalline water ice via ionizing radiation irradiation water ice in the 10-50 K and 10-140 K temperature ranges, respectively, and conducted a systematic at doses of up to 160 ( 30 eV per molecule. We found that crystalline water ice can be converted only

Jewitt, David C.

365

Planetary and Space Science 54 (2006) 15521562 On the discovery of CO nighttime emissions on Titan by Cassini/VIMS  

E-Print Network [OSTI]

by Cassini/VIMS: Derived stratospheric abundances and geological implications Kevin H. Bainesa,�, Pierre of Cassini/VIMS. Earth, Moon, and Planets, 96, 119­147]. in Cassini/ VIMS spectral imagery. We identify

Atreya, Sushil

366

Temperature dependence of the generalized vibrational density of states of sodium bismuth titanate in the ferroelectric phase  

E-Print Network [OSTI]

incoherent neutron scattering at temperatures from 50 to 300 K. Experimental time-of-¯ight spectra were of the NBT lattice dynamics by inelastic neutron scattering and to compare the obtained results with the data.G. Lushnikov). #12;inelastic incoherent neutron scattering and compar

367

New gout test: enhanced ex vivo cytokine production from PBMCS in common gout patients and a gout patient with Kearns-Sayre syndrome  

Science Journals Connector (OSTI)

Monosodium urate (MSU) monohydrate crystals synergize with various toll-like receptor (TLR) ligands to induce interleukin-(IL)-1? production. Data are shown from a young male with mitochondriopathy in Kearns-Sayr...

Tim L. Jansen; Dianne Berendsen; Tania O. Crisan…

2014-09-01T23:59:59.000Z

368

The effect of resveratrol on the recurrent attacks of gouty arthritis  

Science Journals Connector (OSTI)

Gouty arthritis is characterized by inflammation induced by monosodium urate (MSU) crystal deposition, which is resulted by an increase of serum urate concentration. The management of gout, especially the recurre...

Haiyan Chen; Shucong Zheng; Yuankai Wang; Huiqing Zhu; Qiong Liu…

2014-12-01T23:59:59.000Z

369

Life extension program for the modular caustic side solvent extraction unit at Savannah River Site  

SciTech Connect (OSTI)

Caustic Side Solvent Extraction (CSSX) is currently used at the U.S. Department of Energy (DOE) Savannah River Site (SRS) for removal of cesium from the high-level salt-wastes stored in underground tanks. At SRS, the CSSX process is deployed in the Modular CSSX Unit (MCU). The CSSX technology utilizes a multi-component organic solvent and annular centrifugal contactors to extract cesium from alkaline salt waste. Coalescers and decanters process the Decontaminated Salt Solution (DSS) and Strip Effluent (SE) streams to allow recovery and reuse of the organic solvent and to limit the quantity of solvent transferred to the downstream facilities. MCU is operated in series with the Actinide Removal Process (ARP) which removes strontium and actinides from salt waste utilizing monosodium titanate. ARP and MCU were developed and implemented as interim salt processing until future processing technology, the CSSX-based Salt Waste Processing Facility (SWPF), is operational. SWPF is slated to come on-line in October 2014. The three year design life of the ARP/MCU process, however, was reached in April 2011. Nevertheless, most of the individual process components are capable of operating longer. An evaluation determined ARP/MCU can operate until 2015 before major equipment failure is expected. The three year design life of the ARP/MCU Life Extension (ARP/MCU LE) program will bridge the gap between current ARP/MCU operations and the start of SWPF operation. The ARP/MCU LE program introduces no new technologies. As a portion of this program, a Next Generation Solvent (NGS) and corresponding flowsheet are being developed to provide a major performance enhancement at MCU. This paper discusses all the modifications performed in the facility to support the ARP/MCU Life Extension. It will also discuss the next generation chemistry, including NGS and new stripping chemistry, which will increase cesium removal efficiency in MCU. Possible implementation of the NGS chemistry in MCU accomplishes two objectives. MCU serves as a demonstration facility for improved flowsheet deployment at SWPF; operating with NGS and boric acid validates improved cesium removal performance and increased throughput as well as confirms Defense Waste Processing Facility (DWPF) ability to vitrify waste streams containing boron. NGS implementation at MCU also aids the ARP/MCU LE operation, mitigating the impacts of delays and sustaining operations until other technology is able to come on-line.

Samadi-Dezfouli, Azadeh

2012-11-14T23:59:59.000Z

370

Strategic Plan FY14-FY18  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and divisions in more detail. . . . MST develops integrated solutions for operational efficiency and effectiveness. Figure 4. Sandia's organizational functions 22 S a n d i a N...

371

Non-axisymmetric Flows  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

exploited to achieve high performance plas- mas in MST. The advancement of the RFP as a thermonuclear fusion reactor hinges on a complete and fundamental understanding of the...

372

Fellows  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

January 30, 2014 Steven Conradson of Materials Science in Radiation and Dynamics Extremes (MST-8) and Bryan Henson of Physical Chemistry and Applied Spectroscopy (C-PCS) are...

373

Bound states of tunneling electrons in molecular chains M. A. Kozhushner,1 V. S. Posvyanskii,1 and I. I. Oleynik2  

E-Print Network [OSTI]

-state energy spectrum of the negative molecular ion, i.e., the system consisting of one electron plus a neutral scattering theory MST . The subbarrier scattering operators, the fundamental building blocks of MST that the energy spectrum of the bound states of the tunneling electron in a linear chain of three

Oleynik, Ivan

374

Microsoft PowerPoint - 12-06 Poirier SRNL-MS-2010-00236.ppt  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MST Mixing and Kinetics Studies in Support of MST Mixing and Kinetics Studies in Support of SCIX Deployment at SRS Michael Poirier, Zafar Qureshi, Michael Williams, Tim Steeper, and Michael Restivo E&CPT Research Programs, SRNL November 18, 2010 SRNL-MS-2010-00236 Print Close 2 Introduction * SRR developing SCIX process to remove cesium, strontium, and select actinides from SRS Liquid Waste * Process uses existing waste tank (i.e., Tank 41H) Adds MST to waste tank to chemically sorb strontium and select actinides Removes MST and entrained sludge with in-riser rotary microfilter Removes cesium from RMF filtrate with CST ion-exchange column * RMF returns concentrated solids (i.e., MST and entrained sludge) to waste tank * Loaded CST ground to reduce its size and transferred into a waste tank (e.g., Tank 40H, 41H or 51H)

375

Pyroelectric response mechanism of barium strontium titanate ceramics in dielectric bolometer mode: The underlying essence of the enhancing effect of direct current bias field  

SciTech Connect (OSTI)

Pyroelectric response mechanism of Ba{sub 0.70}Sr{sub 0.30}TiO{sub 3} ceramics under dielectric bolometer (DB) mode was investigated by dielectric and pyroelectric properties measurement. The variations of total, intrinsic, and induced pyroelectric coefficients (p{sub tot}, p{sub int}, p{sub ind}) with temperatures and bias fields were analyzed. p{sub int} plays the dominant role to p{sub tot} through most of the temperature range and p{sub ind} will be slightly higher than p{sub int} above T{sub 0}. The essence of the enhancing effect of DC bias field on pyroelectric coefficient can be attributed to the high value of p{sub int}. This mechanism is useful for the pyroelectric materials (DB mode) applications.

Mao, Chaoliang; Cao, Sheng; Yan, Shiguang; Yao, Chunhua; Cao, Fei; Wang, Genshui; Dong, Xianlin [Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Changning, Shanghai 200050 (China)] [Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Changning, Shanghai 200050 (China); Hu, Xu; Yang, Chunli [Kunming Institute of Physics, Kunming 650223 (China)] [Kunming Institute of Physics, Kunming 650223 (China)

2013-06-17T23:59:59.000Z

376

Materials Research Lab -Cooperative International Science and Engineering Internships http://www.mrl.ucsb.edu/mrl/outreach/educational/CISEI/interns_08winter/interns_08winter.html[5/10/12 10:34:13 AM  

E-Print Network [OSTI]

Strontium Titanate Ivana Sabaj Chemistry / Chemical Engineering, University of Chile, Santiago Daniel homepage Site Map // Webmail // Site Privacy Notification Guidelines // National Science Foundation // UCSB: MRL Optical Transmission Study of Reduced Strontium Titanate The interpretation of the transport

Bigelow, Stephen

377

The Political Economy of Risk: Piper Alpha and the British Offshore Oil Industry  

Science Journals Connector (OSTI)

In his article The Titanic Disaster: An Enduring Example of Money Management vs Risk Management, Roy Brander comes to a bold conclusion: the Titanic did not sink because of a number of technical flaws and human e...

Matthias Beck; Charles Woolfson

2000-01-01T23:59:59.000Z

378

--No Title--  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Titan is also a green powerhouse Not only is Oak Ridge National Laboratory's Titan the world's fastest supercomputer, it is also ranked third in energy efficiency. Not only is Oak...

379

2012 ORNL Press Releases | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for uses from engine combustion to consumer electronics. Titan is also a green powerhouse Titan is also a green powerhouse November 14, 2012 - OAK RIDGE, Tenn., Nov. 14, 2012...

380

Synthesis of high tetragonality nanoparticle BaTiO3  

Science Journals Connector (OSTI)

New preparation methods for barium titanate powders that can be used for more compact/superior multilayer ceramic capacitors, embedded capacitors, and high capacitance plastic composite materials in microelectronics are described. The methods involve ... Keywords: Barium titanate, Dielectrics, Nanoparticles, Tetragonality

Burtrand I. Lee; X. Wang; S. Joon Kwon; H. Maie; R. Kota; J. H. Hwang; J. G. Park; M. Hu

2006-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

CX-012303: Categorical Exclusion Determination | Department of...  

Broader source: Energy.gov (indexed) [DOE]

Exclusion Determination CX-012303: Categorical Exclusion Determination Post Combustion Carbon Capture Using Polyethylenimine (PEI) Functionalized Titanate Nanotubes CX(s)...

382

Diode laser measurement of H?O, CO?, and temperature in gas turbine exhaust through the application of wavelength modulation spectroscopy  

E-Print Network [OSTI]

Solar Turbines Incorporated, 14 MWe Titan 130 stationary gas turbinesgas turbine operating data was collected every hour by Solar’

Leon, Marco E.

2007-01-01T23:59:59.000Z

383

Icarus 181 (2006) 235242 www.elsevier.com/locate/icarus  

E-Print Network [OSTI]

involved water. A volatile cycle on Titan likely involves hydrocarbons. At Titan's surface temperature (94 of these calculations for organic and water ice sediment movement by liquid methane flow under Titan gravity. For comparative purposes, plots for movement of quartz sediment by water on Earth and basalt sediment by water

Perfect, Ed

384

Drug Therapy: The Management of Gout  

Science Journals Connector (OSTI)

Gout is a clinical syndrome resulting from the deposition of urate (monosodium urate monohydrate) crystals. The crystals may be deposited in a joint, leading to an acute inflammatory response, or in soft tissues, such as cartilage, causing no inflammation. Most cases of gout are characterized by the... Gout is a clinical syndrome resulting from the deposition of urate (monosodium urate monohydrate) crystals. The crystals may be deposited in a joint, leading to an acute inflammatory response, or in soft tissues, such as cartilage, causing no ...

Emmerson B.T.

1996-02-15T23:59:59.000Z

385

CRUCIBLE TESTING OF TANK 48H RADIOACTIVEWASTE SAMPLE USING FLUIDIZED BED STEAMREFORMING TECHNOLOGY FOR ORGANICDESTRUCTION  

SciTech Connect (OSTI)

The purpose of crucible scale testing with actual radioactive Tank 48H material was to duplicate the test results that had been previously performed on simulant Tank 48H material. The earlier crucible scale testing using simulants was successful in demonstrating that bench scale crucible tests produce results that are indicative of actual Fluidized Bed Steam Reforming (FBSR) pilot scale tests. Thus, comparison of the results using radioactive Tank 48H feed to those reported earlier with simulants would then provide proof that the radioactive tank waste behaves in a similar manner to the simulant. Demonstration of similar behavior for the actual radioactive Tank 48H slurry to the simulant is important as a preliminary or preparation step for the more complex bench-scale steam reformer unit that is planned for radioactive application in the Savannah River National Laboratory (SRNL) Shielded Cells Facility (SCF) later in 2008. The goals of this crucible-scale testing were to show 99% destruction of tetraphenylborate and to demonstrate that the final solid product produced is sodium carbonate. Testing protocol was repeated using the specifications of earlier simulant crucible scale testing, that is sealed high purity alumina crucibles containing a pre-carbonated and evaporated Tank 48H material. Sealing of the crucibles was accomplished by using an inorganic 'nepheline' sealant. The sealed crucibles were heat-treated at 650 C under constant argon flow to inert the system. Final product REDOX measurements were performed to establish the REDuction/OXidation (REDOX) state of known amounts of added iron species in the final product. These REDOX measurements confirm the processing conditions (pyrolysis occurring at low oxygen fugacity) of the sealed crucible environment which is the environment actually achieved in the fluidized bed steam reformer process. Solid product dissolution in water was used to measure soluble cations and anions, and to investigate insoluble fractions of the product solids. Radioanalytical measurements were performed on the Tank 48H feed material and on the dissolved products in order to estimate retention of Cs-137 in the process. All aspects of prior crucible scale testing with simulant Tank 48H slurry were demonstrated to be repeatable with the actual radioactive feed. Tetraphenylborate destruction was shown to be >99% and the final solid product is sodium carbonate crystalline material. Less than 10 wt% of the final solid products are insoluble components comprised of Fe/Ni/Cr/Mn containing sludge components and Ti from monosodium titanate present in Tank 48H. REDOX measurements on the radioactive solid products indicate a reducing atmosphere with extremely low oxygen fugacity--evidence that the sealed crucible tests performed in the presence of a reductant (sugar) under constant argon purge were successful in duplicating the pyrolysis reactions occurring with the Tank 48H feed. Soluble anion measurements confirm that using sugar as reductant at 1X stoichiometry was successful in destroying nitrate/nitrite in the Tank 48H feed. Radioanalytical measurements indicate that {approx}75% of the starting Cs-137 is retained in the solid product. No attempts were made to analyze/measure other potential Cs-137 in the process, i.e., as possible volatile components on the inner surface of the alumina crucible/lid or as offgas escaping the sealed crucible. The collective results from these crucible scale tests on radioactive material are in good agreement with simulant testing. Crucible scale processing has been shown to duplicate the complex reactions of an actual fluidized bed steam reformer. Thus this current testing should provide a high degree of confidence that upcoming bench-scale steam reforming with radioactive Tank 48H slurry will be successful in tetraphenylborate destruction and production of sodium carbonate product.

Crawford, C

2008-07-31T23:59:59.000Z

386

CRUCIBLE TESTING OF TANK 48 RADIOACTIVE WASTE SAMPLE USING FBSR TECHNOLOGY FOR ORGANIC DESTRUCTION  

SciTech Connect (OSTI)

The purpose of crucible scale testing with actual radioactive Tank 48H material was to duplicate the test results that had been previously performed on simulant Tank 48H material. The earlier crucible scale testing using simulants was successful in demonstrating that bench scale crucible tests produce results that are indicative of actual Fluidized Bed Steam Reforming (FBSR) pilot scale tests. Thus, comparison of the results using radioactive Tank 48H feed to those reported earlier with simulants would then provide proof that the radioactive tank waste behaves in a similar manner to the simulant. Demonstration of similar behavior for the actual radioactive Tank 48H slurry to the simulant is important as a preliminary or preparation step for the more complex bench-scale steam reformer unit that is planned for radioactive application in the Savannah River National Laboratory (SRNL) Shielded Cells Facility (SCF) later in 2008. The goals of this crucible-scale testing were to show 99% destruction of tetraphenylborate and to demonstrate that the final solid product produced is sodium carbonate. Testing protocol was repeated using the specifications of earlier simulant crucible scale testing, that is sealed high purity alumina crucibles containing a pre-carbonated and evaporated Tank 48H material. Sealing of the crucibles was accomplished by using an inorganic 'nepheline' sealant. The sealed crucibles were heat-treated at 650 C under constant argon flow to inert the system. Final product REDOX measurements were performed to establish the REDuction/OXidation (REDOX) state of known amounts of added iron species in the final product. These REDOX measurements confirm the processing conditions (pyrolysis occurring at low oxygen fugacity) of the sealed crucible environment which is the environment actually achieved in the fluidized bed steam reformer process. Solid product dissolution in water was used to measure soluble cations and anions, and to investigate insoluble fractions of the product solids. Radioanalytical measurements were performed on the Tank 48H feed material and on the dissolved products in order to estimate retention of Cs-137 in the process. All aspects of prior crucible scale testing with simulant Tank 48H slurry were demonstrated to be repeatable with the actual radioactive feed. Tetraphenylborate destruction was shown to be >99% and the final solid product is sodium carbonate crystalline material. Less than 10 wt% of the final solid products are insoluble components comprised of Fe/Ni/Cr/Mn containing sludge components and Ti from monosodium titanate present in Tank 48H. REDOX measurements on the radioactive solid products indicate a reducing atmosphere with extremely low oxygen fugacity--evidence that the sealed crucible tests performed in the presence of a reductant (sugar) under constant argon purge were successful in duplicating the pyrolysis reactions occurring with the Tank 48H feed. Soluble anion measurements confirm that using sugar as reductant at 1X stoichiometry was successful in destroying nitrate/nitrite in the Tank 48H feed. Radioanalytical measurements indicate that {approx}75% of the starting Cs-137 is retained in the solid product. No attempts were made to analyze/measure other potential Cs-137 in the process, i.e., as possible volatile components on the inner surface of the alumina crucible/lid or as offgas escaping the sealed crucible. The collective results from these crucible scale tests on radioactive material are in good agreement with simulant testing. Crucible scale processing has been shown to duplicate the complex reactions of an actual fluidized bed steam reformer. Thus this current testing should provide a high degree of confidence that upcoming bench-scale steam reforming with radioactive Tank 48H slurry will be successful in tetraphenylborate destruction and production of sodium carbonate product.

Hammond, C; William Pepper, W

2008-09-19T23:59:59.000Z

387

Tophaceous Gout  

Science Journals Connector (OSTI)

Figure 1. Figure 1. Deforming gouty arthritis is evident in a 39-year-old woman who has had anorexia nervosa since the age of 15. Attacks of acute arthritis began at the age of 23; crystals of monosodium urate monohydrate were found in the joints during those ...

Wuthrich D.A.; Lebowitz A.L.

1995-03-09T23:59:59.000Z

388

Gout-associated uric acid crystals activate the NALP3 inflammasome  

Science Journals Connector (OSTI)

... Development of the acute and chronic inflammatory responses known as gout and pseudogout are associated with the deposition of monosodium urate (MSU) or calcium pyrophosphate ... joints and periarticular tissues. Although MSU crystals were first identified as the aetiological agent of gout in the eighteenth century and more recently as a ‘danger signal’ released from dying ...

Fabio Martinon; Virginie Pétrilli; Annick Mayor; Aubry Tardivel; Jürg Tschopp

2006-01-11T23:59:59.000Z

389

Los Alamos Lab: MPA: Materials Research Highlights  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Materials Research Highlights Materials Research Highlights Advances in fuel cells (pdf) R. Borup (MPA-11) Innovative materials physics and applications (pdf) Metallic nanolayered composites exhibit ultra-high strength and ductility (pdf) N.A. Mara (MST-6); D. Bhattacharyya (MPA-CINT); P. Dickerson (MST-6); J.K. Baldwin (MPA-CINT); R.G. Hoagland (MST-8); A. Misra (MPA-CINT) Frontiers in thermoacoustic refrigeration and mixture separation (pdf) S. Backhaus (MPA-10); D. Geller (AET-3); B. Ward (AET-6); G. Swift (MPA-10) Submicron resolution ferromagnetic resonance microscopy using scanned probe MRFM (pdf) E. Nazaretski and R. Movshovich (MPA-10) Nanowire technologies for radiation detection applications (pdf) G. Brown (MST-8); T. Picraux (MPA-CINT); M. Hoffbauer (C-ADI) Development of improved radiation detector materials (pdf)

390

RFP S. T. A. Kumar, D. J. Den Hartog...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Classical confinement and outward convection of impurity ions in the MST RFP S. T. A. Kumar, D. J. Den Hartog, V. V. Mirnov, K. J. Caspary, R. M. Magee et al. Citation: Phys....

391

Staying on Track for a Career in R&D|GE Global Researh  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

year I had a wonderful opportunity to give an invited talk at MS&T 2013 in Montreal, Quebec, Canada on staying on track in a career as a female scientist in an R&D environment....

392

Coalitional Choices and Strategic Challenges: The Landless Movement in Brazil, 1970–2005  

E-Print Network [OSTI]

Socio-Religious Origins of Brazil’s Landless Rural WorkersOrdinary Revolution: Brazil’s Landless Workers’ Movement. ”2000. “Breaking New Ground: Brazil’s MST. ” NACLA Report on

Sinek, Wendy M.

2007-01-01T23:59:59.000Z

393

Indian Water 2015 | Department of Energy  

Energy Savers [EERE]

Indian Water 2015 Indian Water 2015 February 15, 2015 7:00AM to 12:00PM MST Albuquerque, New Mexico Indian Water is a call to help plan a national water summit. This strategic...

394

L’importanza del manoscritto T III S 16 per la storia della letteratura cotanese  

E-Print Network [OSTI]

liturgia avestica (A. Hinze). Mauro M AGGI (Università didella letteratura cotanese 1 Mauro Maggi l cotanese (anticoeffet- Li tt erae Caelestes Mauro Maggi ti, benché il ms.T

Maggi, Mauro

2005-01-01T23:59:59.000Z

395

A Sparse Grid based Spectral Stochastic Collocation Method for Variations-Aware Capacitance Extraction of Interconnects under Nanometer  

E-Print Network [OSTI]

, Sparse Grid combined with a MST (Mini- mum Spanning Tree) representation is proposed to reduce the numberA Sparse Grid based Spectral Stochastic Collocation Method for Variations-Aware Capacitance

Cai, Wei

396

2-15-14_Event Release-1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Possible Radiological Event at WIPP CARLSBAD, N.M., February 15, 2014, 2:49 PM (MST) - Operations personnel are responding to a possible radiological event at the U.S. Department...

397

A UMI Dissertation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

with sawtooth crashes, and it can be triggered more controllably with neutral beam or radio frequency (RF) heating 18,24. In the MST, periods of enhanced confinement without...

398

Multiscale Statistical Methods and the Angular Distribution of Gamma-Ray Bursts  

Science Journals Connector (OSTI)

The spherical variants of multiscale methods - Voronoi tesselation (VT), minimalspanning tree (MST), and multifractal(MFR) analysis - are used to study the angular distributions of three subgroups of gamma-ray bursts

Roland Vavrek; Lajos G. Balázs; Attila Mészáros…

2001-01-01T23:59:59.000Z

399

Microsoft Word - IAEA_06_Mirnov1.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

in self-organized high temperature plasmas such as the reversed field pinch (RFP) and spheromak. In the Madison Symmetric Torus (MST) RFP experiments, they are observed in the form...

400

Building America Webinar: Central Multifamily Water Heating Systems...  

Energy Savers [EERE]

Building America Webinar: Central Multifamily Water Heating Systems Building America Webinar: Central Multifamily Water Heating Systems January 21, 2015 11:00AM to 12:30PM MST...

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Simultaneous  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Simultaneous density and magnetic field fluctuation measurements by far-infrared interferometry and polarimetry in MST a... T. F. Yates, W. X. Ding, T. A. Carter, and D. L. Brower...

402

Money & More: MATIC Tribal Resource Forum for Arizona Tribes...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

4:30PM MST Hosted by the Multi-Agency Tribal Infrastructure Collaborative (MATIC), this free Multi-Agency Resource Forum will share funding, technical assistance, training, and...

403

Universit at Konstanz Entwurf und Analyse von Algorithmen Lehrstuhl f ur Praktische Informatik WS 2000/2001  

E-Print Network [OSTI]

Gewichts. (b) Gilt die Umkehrung von (a)? (c) Zeigen oder widerlegen Sie: Wenn in einem Graph G mit reellen oglichst klein ist. Zeigen Sie, da#25; dieses Problem durch das Bestimmen eines MST in G gel ost werden

Brandes, Ulrik

404

Materials Science & Engineering  

E-Print Network [OSTI]

and Forensics team in the Polymers and Coatings Group, MST-7. He graduated from the University of Toledo, aerogels, carbon fiber composites, damaged materials, and low density materials examining defects

405

J. K. Anderson, A. F. Almagri, ...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the MST) and boasts a high full energy component of around 86%. The beam fuel is mainly hydro- gen with a small fraction (3%-5%) of deuterium for moni- toring fast ion content...

406

Center for Materials at Irradiation and Mechanical Extremes:...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Steve Valone IMage of Steve Valone Contact Information MST-8, MS G755 Los Alamos National Laboratory 505-667-2067 Bio Steve Valone received his Ph.D. in theoretical chemistry from...

407

WINDExchange: Wind Events  

Wind Powering America (EERE)

Sun, 15 Feb 2015 00:00:00 MST 2015 Iowa Wind Power Conference and Iowa Wind Energy Association Midwest Regional Energy Job Fair http:www.iowawindenergy.org...

408

E-Print Network 3.0 - acute zonal occult Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

alter the shape of isopotential surfaces, and occultations have produced zonal wind estimates on several... Spatially Resolved Observations of an Upcoming Titan ......

409

CY15 Proposal Template  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

address Telephone number Tentative Research Team: Names and affiliations Requested Laser Platform and Experiment Time (default is 4 weeks): Titan, Janus or COMET Special Requests:...

410

Computing and Computational Sciences Directorate - News  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

02262014 Titan supercomputer propels GE wind turbine research into new territory Windpower Engineering and Development 02262014 OpenCore seeks to help businesses make best...

411

Instruments/Capabilities  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Capabilities FEI Titan Extreme Schottky-field emission gun (X-FEG) CEOS dodecapole probe (STEM) aberration corrector GIF Quantum with dual EELS and fast spectrum imaging...

412

OSTI, US Dept of Energy, Office of Scientific and Technical Informatio...  

Office of Scientific and Technical Information (OSTI)

computing, Jaguar, ORNL, SciTech Connect, Titan Read more... Observing Gamma-ray Bursts in Distant Galaxies by Kathy Chambers 21 Nov, 2013 in Science Communications...

413

Russia-China MIlitary Arms Trade.  

E-Print Network [OSTI]

??To observers who are not indifferent toward Russia, the trend of Russiaâs foreign policy clearly is disquieting, if not alarming. The titanic efforts made by… (more)

Vitaly, Vasilev

2008-01-01T23:59:59.000Z

414

NETL F 451.1/1-1, Categorical Exclusion Designation Form  

Broader source: Energy.gov (indexed) [DOE]

Post Combustion Carbon Capture Using Polyethylenimine (PEI) Functionalized Titanate Nanotubes The overall objective of the proposed work is to develop a novel nanomaterial to...

415

Energy Efficiency Improvement and Cost Saving Oportunities for the Concrete Industry  

E-Print Network [OSTI]

of energy management: energy audits/assessments, energyto Titan America, energy audits conducted in concrete plantsmanagement programs Energy audit Energy teams Employee

Kermeli, Katerina

2013-01-01T23:59:59.000Z

416

SIAG/OPT Views-and-News pdfsubject - Optimization Online  

E-Print Network [OSTI]

these simulation tools in order to systematize and automate decisions ..... the Optimization of Chemical Processes Described by. Large Sparse ...... http://titan.

2003-04-22T23:59:59.000Z

417

Scott Chambers | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Recent Highlights Bringing oxides into the visible realm Scientists are studying strontium titanate to turn sunlight into fuel through solar hydrolysis, splitting water into...

418

Mark Bowden | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Recent Highlights Bringing oxides into the visible realm Scientists are studying strontium titanate to turn sunlight into fuel through solar hydrolysis, splitting water into...

419

March  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Scholarship. - 33114 Los Alamos postdoctoral fellow William Rice holds a crystal of strontium titanate up to the light. This crystal, previously thought to be nonmagnetic, turns...

420

How to overcome the oxide barrier | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

oxide semiconductor Atomistic diagram for crystalline chromium metal (light blue) on strontium titanate(top), an equation that describes the transport process (middle), and an...

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

JOURNAL DE PHYSIQUE Co//oqueC2, suppiement au n O 3, Tome 40, mars 1979, page C2-367  

E-Print Network [OSTI]

, France R6sum6.- Sept chalcog6nures lamellaires de fer et de titane, non stoechiom6triques, ont 6t6 6tu

Paris-Sud XI, Université de

422

Iron-based Superconductor Simulations Spin Out New Possibilities...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Iron-based Superconductor Simulations Spin Out New Possibilities on Titan Rutgers team develops computational model for predicting superconductivity The 15 boxes in this image show...

423

Resources for Researchers | ORNL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

User Facilities Library Events and Conferences Science & Discovery Organization Lab-directed R&D Careers Visit ORNL Contact Us Solvable problems Titan expands the realm of the...

424

1  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Flipping the switch on magnetism in strontium titanate March 27, 2014 Semiconductor material can be magnetized with light, suggesting new technology opportunities LOS ALAMOS, N.M.,...

425

Additive Manufacturing: Technology and Applications  

Energy Savers [EERE]

name Neutron scattering: SNS and HFIR * World's most intense pulsed neutron beams * World's highest flux reactor-based neutron source Leadership-class computing: Titan...

426

Multiferroic and magnetoelectric materials  

Science Journals Connector (OSTI)

... F. Nature of ferroelectricity in KNO3. Phys. Rev. 154, 493–505 (1967)Saifi, M. A. & Cross, L. E. Dielectric properties of strontium titanate at ...

W. Eerenstein; N. D. Mathur; J. F. Scott

2006-08-17T23:59:59.000Z

427

Two-dimensional normal-state quantum oscillations in a superconducting heterostructure  

Science Journals Connector (OSTI)

... GaAs at T = 300?K. Solid State Commun. 63, 591–594 (1987)Saifi, M. A. & Cross, L. E. Dielectric properties of strontium titanate at ...

Y. Kozuka; M. Kim; C. Bell; B. G. Kim; Y. Hikita; H. Y. Hwang

2009-11-26T23:59:59.000Z

428

Sandia National Laboratories: Careers: Internships: Technical...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

TITANS: Center for Analysis Systems and Applications Photo of CASA interns CASA mentors preview a sophisticated data analysis software tool. When offered Year-round and summer Who...

429

E-Print Network 3.0 - adsorbing uranium compounds Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

compound, davidite-brannerite-absite type of uranium titanates and the euxenite... Uranium geology and mining Ranger 1 ... Source: Uppsala Universitet, Department of...

430

Chapter Eleven - Urate Crystal Deposition Disease and Gout—New Therapies for an Old Problem  

Science Journals Connector (OSTI)

Abstract Gout is a chronic, inflammatory arthritic condition resulting from monosodium urate crystal deposition in joints and tissues, which develop because of high levels of serum uric acid. Gout treatment includes short-term approaches for acute gout attacks (gout flares) and long-term approaches for treating hyperuricemia. Acute gout therapy focuses on rapid inhibition of pain and inflammation resulting from the inflammatory response to monosodium urate crystal deposition. Most commonly prescribed acute gout therapies in the United States are NSAIDs, colchicine, and corticosteroids. Optimal treatment of gout also includes approaches to address chronically high uric acid levels. Therapeutic approaches to address gout-associated hyperuricemia include inhibiting production of uric acid using xanthine oxidase inhibitors, degrading uric acid with recombinant uricase, and increasing uric acid excretion using older uricosuric agents and newer selective uric acid reabsorption inhibitors. The recent surge of research in this area brings with it the potential for new targets and therapeutic combinations.

Jean-Luc Girardet; Jeffrey N. Miner

2014-01-01T23:59:59.000Z

431

DEFINITION OF A NEW LEVEL ONE TEST CASE MEASUREMENTS OF EQUILIBRIUM RADIATION FROM AN INDUCTIVELY  

E-Print Network [OSTI]

at atmospheric pressure, is used to create N2-CH4 Titan-like plasma (98%N2 - 2%CH4). The operating frequency and power are 64 MHz and 3 kW respectively. This kind of apparatus allows obtaining plasma in chemical case 1 proposes a spectroscopic study of plasma formed with a Titan-like atmosphere gas mixture, which

Paris-Sud XI, Université de

432

PLANETARY SURFACES & INTERIORS 2013 A MINI-SYMPOSIUM AT THE UNIVERSITY OF COLORADO, DEPARTMENT OF GEOLOGICAL SCIENCES  

E-Print Network [OSTI]

-Impact Evolution of Pluto and Charon Bryan Holler Huygens 2: Follow-up study on future Titan landings Jacob Bruns Influence of asteroid and comet impacts on atmospheric abundances at Venus, Earth, and Mars Caitlin Heath Titan Landings Jacob Bruns and Daniel Everding Enceladus mass-loss estimate from crater SFD analysis

Mojzsis, Stephen J.

433

Please read the information on the bottom of this form before you fill it out in its entirety. Return all materials to the Marketing Office, TSU-7, or email to Katie at kmeyers@fullerton.edu. Submit at least 15 business days before you want your message t  

E-Print Network [OSTI]

. Return all materials to the Marketing Office, TSU-7, or email to Katie at kmeyers@fullerton.edu. Submit, CSUF, Inc. Marketing Office, located in the lower level of the Titan Student Union, Room 7. All on this form to the ASI Marketing Office located in the lower level of the Titan Student Union, Room 7. 1

de Lijser, Peter

434

Women @ Energy: Hai Ah Nam | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Hai Ah Nam Hai Ah Nam Women @ Energy: Hai Ah Nam April 1, 2013 - 11:04am Addthis Hai Ah Nam being interviewed on how the Titan supercomputer will benefit research in low-energy nuclear physics. The full video can be seen at https://www.olcf.ornl.gov/titan/. Hai Ah Nam being interviewed on how the Titan supercomputer will benefit research in low-energy nuclear physics. The full video can be seen at https://www.olcf.ornl.gov/titan/. Check out other profiles in the Women @ Energy series and share your favorites on Pinterest. Dr. Hai Ah Nam is a computational nuclear physicist working at the Oak Ridge Leadership Computing Facility at Oak Ridge National Laboratory (ORNL) since 2008. Hai Ah's research focuses on using cutting-edge high performance computing systems like Titan, the world's fastest

435

Hydrothermal synthesis of nanocubes of sillenite type compounds for photovoltaic applications and solar energy conversion of carbon dioxide to fuels  

DOE Patents [OSTI]

The present invention relates to formation of nanocubes of sillenite type compounds, such as bismuth titanate, i.e., Bi.sub.12TiO.sub.20, nanocubes, via a hydrothermal synthesis process, with the resulting compound(s) having multifunctional properties such as being useful in solar energy conversion, environmental remediation, and/or energy storage, for example. In one embodiment, a hydrothermal method is disclosed that transforms nanoparticles of TiO.sub.2 to bismuth titanate, i.e., Bi.sub.12TiO.sub.20, nanocubes, optionally loaded with palladium nanoparticles. The method includes reacting titanium dioxide nanotubes with a bismuth salt in an acidic bath at a temperature sufficient and for a time sufficient to form bismuth titanate crystals, which are subsequently annealed to form bismuth titanate nanocubes. After annealing, the bismuth titanate nanocubes may be optionally loaded with nano-sized metal particles, e.g., nanosized palladium particles.

Subramanian, Vaidyanathan; Murugesan, Sankaran

2014-04-29T23:59:59.000Z

436

O:\ELECTRIC\ORDERS\EA-223.PDF  

Broader source: Energy.gov (indexed) [DOE]

CMS Marketing, Services and Trading Company CMS Marketing, Services and Trading Company Order No. EA-223 I. BACKGROUND Exports of electricity from the United States to a foreign country are regulated and require authorization under section 202(e) of the Federal Power Act (FPA) (16 U.S.C. §824a(e)). On May 12, 2000, CMS Marketing, Services and Trading Company (CMS MS&T) applied to the Office of Fossil Energy (FE) of the Department of Energy (DOE) for authorization to transmit electric energy to Canada as a power marketer. CMS MS&T, a Michigan corporation, is a wholly owned subsidiary of CMS Enterprises Company which is in turn a wholly owned subsidiary of CMS Energy Corporation. CMS MS&T is a power marketer that does not own or control any electric generation, transmission, or distribution facilities, nor does it have any franchised electric service

437

Accelerated Molecular Dynamics Methods  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Dynamics Methods Dynamics Methods for Infrequent Events Arthur F. Voter Theoretical Division Los Alamos National Laboratory Los Alamos, New Mexico U.S. Department of Energy Theory Focus Session on Hydrogen Storage Materials Crystal City, VA May 18, 2006 Los Alamos Acknowledgments Blas P. Uberuaga (LANL, MST-8) Francesco Montalenti (U. Milano-Bicocca) Graeme Henkelman (U. Texas at Austin) Timothy C. Germann (LANL, X-7) James A. Sprague (NRL) Mads Sorensen (Novo Nordisk A/S, Copenhagen) Sriram Swaminarayan (LANL, MST-8) Steve Stuart (Clemson) David Sholl (Carnegie Mellon) John Hamilton (Sandia) Wolfgang Windl (Ohio State) Roger Smith (U. Loughborough) Robin Grimes (Imperial College) Kurt Sickafus (LANL, MST-8) Jacques Amar (U. Toledo) DOE Office of Basic Energy Sciences Motorola Intel Los Alamos Outline

438

Los Alamos Lab: MPA: Focus on Facilities  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Focus on Facilities Focus on Facilities Mechanical testing and modeling in MST The mission of the Materials Science and Technology Division includes the development of constitutive deformation and failure models for the metals, polymers, ceramics, and composites of interest to Department of Energy, Department of Defense, and industrially-sponsored programs. More about mechanical testing and modeling in MST (pdf). Sensors and Electrochemical Devices Group The Sensors and Electrochemical Devices Group (MPA-11), within the Materials Physics and Applications Division at Los Alamos National Laboratory, conducts basic and applied research on electronic and ionic conducting materials, including the development of novel materials characterization approaches. More about the Sensors and Electrochemical Devices Group (pdf).

439

Sandia National Laboratories: Careers: Internships & Co-ops: Technical  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technical Institute Programs Technical Institute Programs Internships & Co-ops Technical Institute Programs Computer Science Research Institute Enabling Predictive Simulation Research Institute Energy Surety Incubator Interns for Security, Arms Control, and Force Protection Engineering National Security Engineering Institute Physical Sciences Institute Sandia Institute for Modeling and Simulation Science of Extreme Environments Research Institute TITANS: Center for Analysis Systems and Applications TITANS: Center for Cyber Defenders TITANS: Monitoring Systems and Technology Intern Center How to Apply Intern Benefits Intern FAQs Fellowships Postdoctoral Positions Campus Recruiting Careers Technical Institute Programs Scientist working with lab equipment Critical skills of critical importance

440

Events | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

About Us » News & Blog » Events About Us » News & Blog » Events Events Upcoming events in Indian Country. Renewable Energy Market Update Webinar January 29, 2014 11:00AM MST Alaska Forum on the Environment February 3, 2014 8:00AM AKST to February 7, 2014 5:00PM AKST Alaska Village Initiatives Rural Small Business Conference February 11, 2014 8:00AM AKST to February 13, 2014 5:00PM AKST Law Seminars International Conference: Tribal Energy Development in the Great Lakes February 20, 2014 8:00AM CST to February 21, 2014 5:00PM CST Strategic Energy Planning Webinar February 26, 2014 11:00AM MST Sustaining the Reservation: Creating Tribal Economies February 27, 2014 8:00AM MST to February 28, 2014 5:00PM MST 2014 NCAI Executive Council Winter Session March 11, 2014 8:00AM EDT to March 13, 2014 5:00PM EDT

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Perceiving electrical stimulation of identified human visual areas  

Science Journals Connector (OSTI)

...the spatial RF of the electrode. Color scale shows the rms power of the LFP at each spatial field location (no color means...Erb M, Grodd W (2002) Object-selective responses in the human motion area MT/MST. Nat Neurosci 5:17 ZZQQhy18. Murphey et al...

Dona K. Murphey; John H. R. Maunsell; Michael S. Beauchamp; Daniel Yoshor

2009-01-01T23:59:59.000Z

442

Materials Corrosion and Mitigation Strategies for APT, Weapons Neutron Research Facility Experiments  

E-Print Network [OSTI]

Materials Corrosion and Mitigation Strategies for APT, Weapons Neutron Research Facility Experiments: The Effects of 800 MeV Proton Irradiation on the Corrosion of Tungsten, Tantalum, Stainless Steel, and Gold R. Scott Lillard, Darryl P. Butt Materials Corrosion & Environmental Effects Laboratory MST-6

443

The Corrosion of Materials in Spallation Neutron Sources R. Scott Lillard, Darryl P. Butt  

E-Print Network [OSTI]

1 The Corrosion of Materials in Spallation Neutron Sources R. Scott Lillard, Darryl P. Butt Materials Corrosion and Environmental Effects Lab Materials Science and Technology Division, MST-6 Los current efforts to measure the real-time corrosion rates of Alloy 718 (718) during 800 MeV proton

444

Materials Corrosion and Mitigation Strategies for APT, End of FY '97 Report  

E-Print Network [OSTI]

Materials Corrosion and Mitigation Strategies for APT, End of FY '97 Report: I. Inconel 718 In-Beam Corrosion Rates from the '97 A6 Irradiation R. Scott Lillard, Donald L. Pile, Darryl P. Butt Materials Corrosion & Environmental Effects Lab MST-6, Metallurgy Group Los Alamos National Laboratory, Los Alamos NM

445

Materials Corrosion and Mitigation Strategies for APT, End of FY '97 Report  

E-Print Network [OSTI]

Materials Corrosion and Mitigation Strategies for APT, End of FY '97 Report: II. Out-of-Beam Corrosion Rates and Water Analysis from the '97 A6 Irradiation R. Scott Lillard, Donald L. Pile, Darryl P. Butt Materials Corrosion & Environmental Effects Lab MST-6, Metallurgy Group Los Alamos National

446

Materials Corrosion and Mitigation Strategies for APT: End of Year Report, FY '96  

E-Print Network [OSTI]

Materials Corrosion and Mitigation Strategies for APT: End of Year Report, FY '96 R. Scott Lillard, Darryl P. Butt Materials Corrosion and Environmental Effects Laboratory MST-6, Metallurgy Los Alamos accomplishment in FY '96 was the design and fabrication of the corrosion probes to be used "In Beam" during

447

Adaptive architectures for peak power management  

E-Print Network [OSTI]

iq fq ialu falu ldst ic dc ipr fpr g721d mesa-texgen epiciq fq ialu falu ldst ic dc ipr fpr perim big mst treeaddNas iq fq ialu falu ldst ic dc ipr fpr mg.big ft.big sp.big

Kontorinis, Vasileios

2013-01-01T23:59:59.000Z

448

Physics and Astronomy The Wiess School of Natural Sciences  

E-Print Network [OSTI]

257 Physics and Astronomy The Wiess School of Natural Sciences Degrees Offered: BA, BS, MST, MS, PhD The Department of Physics and Astronomy offers undergraduate and graduate programs for a wide range of interests. The bachelor of arts degrees in physics and astronomy are suitable for students who wish to obtain a broad

Richards-Kortum, Rebecca

449

Physics and Astronomy The Wiess School of Natural Sciences  

E-Print Network [OSTI]

Physics and Astronomy The Wiess School of Natural Sciences Degrees Offered: BA, BS, MST, MS, PhD The Department of Physics and Astronomy offers undergraduate and graduate programs for a wide range of interests. The bachelor of arts degrees in physics and astronomy are suitable for students who wish to obtain a broad

Richards-Kortum, Rebecca

450

Physics and Astronomy The Wiess School of Natural Sciences  

E-Print Network [OSTI]

1 Physics and Astronomy The Wiess School of Natural Sciences Degrees Offered: BA, BS, MST, MS, PhD The Department of Physics and Astronomy offers undergraduate and graduate programs for a wide range of interests. The bachelor of arts degrees in physics and astronomy are suitable for students who wish to obtain a broad

Richards-Kortum, Rebecca

451

Physics and Astronomy The Wiess School of Natural Sciences  

E-Print Network [OSTI]

246 Physics and Astronomy The Wiess School of Natural Sciences Degrees Offered: BA, BS, MST, MS, PhD The Department of Physics and Astronomy offers undergraduate and graduate programs for a wide range of interests. The bachelor of arts degrees in physics and astronomy are suitable for students who wish to obtain a broad

Richards-Kortum, Rebecca

452

Physics and Astronomy The Wiess School of Natural Sciences  

E-Print Network [OSTI]

234 Physics and Astronomy The Wiess School of Natural Sciences Degrees Offered: BA, BS, MST, MS, PhD The Department of Physics andAstronomy offers undergraduate and graduate pro- grams for a wide range of interests.The bachelor of arts degrees in physics and in astronomy are suitable for students who wish to obtain a broad

Richards-Kortum, Rebecca

453

Physics and Astronomy The Wiess School of Natural Sciences  

E-Print Network [OSTI]

228 Physics and Astronomy The Wiess School of Natural Sciences Degrees Offered: BA, BS, MST, MS, PhD The Department of Physics andAstronomy offers undergraduate and graduate pro- grams for a wide range of interests.The bachelor of arts degrees in physics and in astronomy are suitable for students who wish to obtain a broad

Richards-Kortum, Rebecca

454

Generation of new points for training set and feature-level fusion in multimodal biometric identification  

Science Journals Connector (OSTI)

Multimodal biometrics has gained interest in the recent past due to its improved recognition rate over unibiometric and unimodal systems. Fusion at feature level is considered here for the purpose of recognition. The biometrics considered for fusion ... Keywords: Convex combination, Feature reduction, MST, Nearest neighbor rule, Principal components, Training set

Dhiman Karmakar; C. A. Murthy

2014-02-01T23:59:59.000Z

455

Advanced Materials Characterization Laboratory User Faculty Authorization Form  

E-Print Network [OSTI]

-341-4393 Hitachi S-4700 B-18D McNutt Dr. Clarissa Wisner cvierret@mst.edu 573-341-4393 Helios Nanolab 600 B-18A Mc blanks that are marked with a * Notes concerning usage of the instrument - if you have a problem, please

Missouri-Rolla, University of

456

Improved High Maximum Stable Throughput FCFS Tree Algorithms with Interference Cancellation  

E-Print Network [OSTI]

Middelheimlaan 1 B-2020 Antwerp, Belgium ABSTRACT Tree algorithms form a well researched class of collision res-detection mechanisms). In point-to- multipoint access networks, such as DVB-RCS satellite net- works and hybrid, Mikhailov and Vvedenskaya [12]. These algorithms were the first to have a provable MST above zero. Afterward

457

untitled  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Magnetic-Fluctuation-Induced Particle Transport and Plasma Flow in the MST Reversed-Field Pinch W. X. Ding, 1,2 D. L. Brower, 1,2 D. Craig, 2,3 B. H. Deng, 1 S. C. Prager, 2,4...

458

NH 4-H Youth Group Enrollment Form Name of Program  

E-Print Network [OSTI]

Yes No Farm Rural Town 10K-50K Suburb City 50K+ Hispanic Non-Hispanic White White Black Black American - ATV's (NSE1) Other Science /Technology (MST1) Woodworking (MWW1) Wind Power (MWP1) GPS (MGP1) Electricity/Energy (MEL1) Computers (MCS1) Bicycle Safety (MBS1) Aerospace & Rocketry (MAR1) Science

New Hampshire, University of

459

Office of Small and Disadvantaged Business Utilization Events...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

November 2014 < prev next > Sun Mon Tue Wed Thu Fri Sat 26 27 28 29 30 31 1 2 3 4 5 6 7 8 USDA Rural Small Business Connection Event 8:30AM to 4:00PM MST 2014 National Small...

460

Annales Geophysicae (2003) 21: 10471055 c European Geosciences Union 2003 Geophysicae  

E-Print Network [OSTI]

Kiruna, Sweden Received: 12 April 2002 ­ Revised: 16 August 2002 ­ Accepted: 1 October 2002 Abstract with elevation angles of 20­60. Echo power ( 16 dB), Doppler velocity (between ­30 and + 30 m s-1) and spectral gravity waves. When the HF radar detected the echoes, a vertical incidence MST radar, located at Esrange

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Microsoft Word - 14th_rf_conf.doc  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lower Hybrid Antenna for Current Drive Experiments on MST J.A. Goetz, M.A. Thomas, C.B. Forest, S.C. Prager, E. Uchimoto a) , F.W. Baity b) , and R.I. Pinsker c) Department of...

462

Annales Geophysicae, 23, 11471156, 2005 SRef-ID: 1432-0576/ag/2005-23-1147  

E-Print Network [OSTI]

Union 2005 Annales Geophysicae Turbulent energy dissipation rates observed by Doppler MST Radar radar at Andøya/Northern Norway. This radar was operated in the Doppler beam steering mode the background wind field. The real-time data analysis of the Doppler radar backscattering provided the launch

Paris-Sud XI, Université de

463

Supercomputers: Extreme Computing at the National Labs | Department of  

Broader source: Energy.gov (indexed) [DOE]

Supercomputers: Extreme Computing at the National Labs Supercomputers: Extreme Computing at the National Labs Supercomputers: Extreme Computing at the National Labs September 4, 2013 - 1:08pm Addthis Titan 1 of 5 Titan Oak Ridge National Laboratory's Titan has a theoretical peak performance of more than 20 petaflops, or more than 20 quadrillion calculations per second. This will enable researchers across the scientific arena, from materials to climate change to astrophysics, to acquire unparalleled accuracy in their simulations and achieve research breakthroughs more rapidly than ever before. Titan is currently the second fastest supercomputer in the world. Image: Courtesy of Oak Ridge National Laboratory. Sequoia 2 of 5 Sequoia Sequoia is a 20 petaflop, that is 20 quadrillion floating point operations per second, IBM BlueGene/Q system at Lawrence Livermore National

464

The Five Fastest Supercomputers at the National Labs | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

The Five Fastest Supercomputers at the National Labs The Five Fastest Supercomputers at the National Labs The Five Fastest Supercomputers at the National Labs Addthis Titan 1 of 5 Titan Oak Ridge National Laboratory's Titan has a theoretical peak performance of more than 20 petaflops, or more than 20 quadrillion calculations per second. This will enable researchers across the scientific arena, from materials to climate change to astrophysics, to acquire unparalleled accuracy in their simulations and achieve research breakthroughs more rapidly than ever before. Titan is currently the second fastest supercomputer in the world. Image: Courtesy of Oak Ridge National Laboratory. Sequoia 2 of 5 Sequoia Sequoia is a 20 petaflop, that is 20 quadrillion floating point operations per second, IBM BlueGene/Q system at Lawrence Livermore National

465

The Astrophysical Journal Supplement Series, 181:543547, 2009 April doi:10.1088/0067-0049/181/2/543 C 2009. The American Astronomical Society. All rights reserved. Printed in the U.S.A.  

E-Print Network [OSTI]

TITAN Y. S. Kim and R. I. Kaiser Department of Chemistry, University of Hawaii at Manoa, Honolulu, HI heating allows monitoring of the sublimation profile of the vinylacetylene sample in the range of 101

Kaiser, Ralf I.

466

The Bleeding 'Edge' of Fusion Research | Princeton Plasma Physics...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Plasma Physics Laboratory's (PPPL's) C.S. Chang increased the performance of its fusion XGC1 code fourfold on Titan using its GPUs and CPUs, compared to its previous...

467

Jupiter Laser Facility  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Jupiter Laser Facility The commissioning of the Titan Petawatt-Class laser to LLNL's Jupiter Laser Facility (JLF) has provided a unique platform for the use of petawatt (PW)-class...

468

E-Print Network 3.0 - active drop counting Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Sample search results for: active drop counting Page: << < 1 2 3 4 5 > >> 1 Titan Recreation-Group Fitness Student Engagement Report Summary: hours of Drop In Fitness classes...

469

COPYRIGHT NOTICE: is published by Princeton University Press and copyrighted, 2001, by Princeton  

E-Print Network [OSTI]

enables a worldwide public to share this vicarious cosmic exploration. Pictures of a comet crashing the sur- face of Mars and even fly over it; they will land on Titan, Sat- urn's giant moon; and samples

Landweber, Laura

470

Nano-and Microtechnology Development for Advanced Scientific Measurements throughout  

E-Print Network [OSTI]

to a successful mission. Micro- and nanotechnology can play a significant role in upcoming landed missions to Mars, Europa, Titan, and icy bodies, such as comets and asteroids, not only to make current capabilities more

Fisher, Frank

471

NEWS:  

Science Journals Connector (OSTI)

......floating in a lake on Titan, and the Comet Hopper, monitoring comet evolution through multiple landings. One of the three should fly in 2016...to examine the chemical composition of a comet; Whipple: Reaching into the Outer Solar......

Space Shorts

2011-06-01T23:59:59.000Z

472

Recap: Advancing Scientific Innovation at the National Labs ...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Lab Fri, Mar 07 2014 18:19:31 OLCF Industry User Named Person to Watch in High-Performance Computing for 2014 http:t.copXTjgsn0XJ Titan Industry @ORNL @GEResearch - OLCF ...

473

Chemical and Charge Imbalance Induced by Radionuclide Decay: Effects on Waste Form Structure  

SciTech Connect (OSTI)

This is a milestone document covering the activities to validate theoretical calculations with experimental data for the effect of the decay of 90Sr to 90Zr on materials properties. This was done for a surragate waste form strontium titanate.

Van Ginhoven, Renee M.; Jaffe, John E.; Jiang, Weilin; Strachan, Denis M.

2011-04-01T23:59:59.000Z

474

Use of titanium-based materials as bactericides  

DOE Patents [OSTI]

Compositions containing metal ions bound into a titanate are described which have demonstrated an ability to suppress bacterial growth of a number of organisms associated with periodontal disease and caries.

Hobbs, David T; Elvington, Mark C; Wataha, John; Chung, Whasun O; Rutherford, R. Bruce; Chan, Daniel C

2013-10-01T23:59:59.000Z

475

Senate Forum, 24(1), Fall 2008 13 Bicycles on Campus  

E-Print Network [OSTI]

sustainable campus. Despite coverage in the Daily Titan and several announcements on campus portals of pedestrians being injured by bicycles or other forms of non-motorized transportation, including skateboards

de Lijser, Peter

476

Argonne scientists pioneer strategy for creating new materials...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

know when designing new materials." In experimenting with a class of oxides known as strontium titanates, the research team found that when they layered titanium on top of two...

477

Superlattice Structure and Precipitates in O+ and Zr+ Ion Coimplanted...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Zr+ Ion Coimplanted SrTiO3: a Model Waste Form for 90Sr. Abstract: We investigate strontium titanate as a model waste form for 90Sr. Implantation with O+ and Zr+ ions, followed...

478

Irradiation behavior of SrTiO3 at temperatures close to the critical...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for amorphization. Abstract: Damage accumulation on both the Sr and Ti sublattices in strontium titanate (SrTiO3) has been investigated under 1.0 MeV Au+ irradiation at 360 and 400...

479

CX-007964: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

Titanates for Optimized Performance in Separations Science, Innovative Medical Applications and Photochemistry CX(s) Applied: B3.6 Date: 02/08/2012 Location(s): South Carolina Offices(s): Savannah River Operations Office

480

Contested Material Interface Shows Mixing | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

previously thought Is the interface of insulating lanthanum aluminate (LaAlO3) and strontium titanate (SrTiO3) abrupt or intermixed? This question is answered in studies using...

Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Bringing oxides into the visible realm | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

visible realm Bringing oxides into the visible realm Reducing the optical band gap of strontium titanate thin films This is a model of the growth process showing one lanthanum and...

482

SMART CAMERAS FOR REMOTE SCIENCE SURVEY David R. Thompson (1)  

E-Print Network [OSTI]

abundances of life-related elements. However, during operations these instruments are universally constrained for life in the outer Solar System. A Titan balloon, Europa submarine, or an Enceladus lander will likely climates, extinct life, and potential habitats. This

Schaffer, Steven

483

SMART CAMERAS FOR REMOTE SCIENCE SURVEY David R. Thompson (1)  

E-Print Network [OSTI]

abundances of life-related elements. However, during operations these instruments are universally constrained for life in the outer Solar System. A Titan balloon, Europa submarine, or an Enceladus lander would likely climates, extinct life, and potential habitats. Th

484

2008 Nature Publishing Group REVIEW ARTICLE  

E-Print Network [OSTI]

atmosphere. With a surface temperature of 93.7 K at the equator, Titan's water is almost completely frozen for a stratospheric cloud of ethane has been seen in Cassini Visual and Infrared Mapping Spectrometer (VIMS) data

Atreya, Sushil

485

Improving the dielectric and piezoelectric properties of screen-printed Low temperature PZT/polymer composite  

E-Print Network [OSTI]

materials, ceramics, polymers and composites. Ceramic piezoelectric materials (e.g. lead zirconate titanate of piezoelectric ceramic powders and a polymer matrix. The polymer used can itself be piezoelectric [3 of ceramic loadings in the composite (e.g.

486

News & Blog | Department of Energy  

Energy Savers [EERE]

Tomorrow's Wind Energy Leaders Titan Top 500 Recognizes Fastest Supercomputers 3D Printing in 30 Seconds Year 3 Finish Line Event EcoCAR 2 races to the finish line An...

487

Open Archive Toulouse Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and  

E-Print Network [OSTI]

Durand Fine powders of BaTiO3 are synthesized by hydrothermal processing at 250 °C for 7 h. Two different- zation process. Keywords barium titanate, dielectric properties, hydrothermal synthesis, ceramic, thick

Paris-Sud XI, Université de

488

amateur football association: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

obtained with webcams may even permit Titans disk to be resolved. We additionally report some observations made with amateur equipment mounted on the 1.64m Gerard P. Kuiper...

489

National Center for Computational Sciences | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the world's fastest in November 2012. Titan is unique among its peers due to its hybrid architecture-a combination of GPUs, traditionally used in video games, and the more...

490

MagLab - Pioneers in Electricity and Magnetism: Enrico Fermi  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Enrico Fermi (1901-1954) Enrico Fermi Enrico Fermi was a titan of twentieth-century physics. Adept in both theory and experiment, the Italian-born American outlined the statistical...

491

Batteries: Overview of Battery Cathodes  

E-Print Network [OSTI]

and Titanates as High-Energy Cathode Materials for Li-IonI, Amine K (2009) High Energy Cathode Material for Long-LifeA New Cathode Material for Batteries of High Energy Density.

Doeff, Marca M

2011-01-01T23:59:59.000Z

492

Touring the Saturnian System  

Science Journals Connector (OSTI)

The Cassini mission to Saturn employs a Saturn orbiter and a Titan probe to conduct an intensive investigation of the Saturnian system. The orbiter flies a series of orbits, incorporating flybys of the Saturni...

Aron A. Wolf

493

Touring the Saturnian System  

Science Journals Connector (OSTI)

The Cassini mission to Saturn employs a Saturn orbiter and a Titan probe to conduct an intensive investigation of the Saturnian system. The orbiter flies a series of orbits, incorporating flybys of the Saturni...

Aron A. Wolf

2003-01-01T23:59:59.000Z

494

A&G Volume 54 Issue 2, Full Issue  

Science Journals Connector (OSTI)

......Alternatively, another mission proposal was the Aerial Vehicle for In Situ and Airborne Titan Reconnaissance (AVIATR...Oren et al. 2002) could make up a more sig- nificant ecological component of hypersaline environments than previously thought......

A&G Volume 54 Issue 2; Full Issue

2013-04-01T23:59:59.000Z

495

Sandia National Laboratories: Careers: Internships: Technical...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

TITANS: Center for Cyber Defenders Photo of CCD interns CCD interns use a custom power meter to measure the amount of energy consumed by their computers and monitors. When offered...

496

High-Power Electrochemical Storage Devices and Plug-in Hybrid...  

Broader source: Energy.gov (indexed) [DOE]

EV) 3 CPI-LG Chem Mixed Mn-Oxide Cathodes (High Power) 4 JCS (Johnson Controls - Saft) Mixed Metal-Oxide Cathodes (High Power) 5 EnerDel Li-Titanate Anodes (High Power) PHEV...

497

Dual-band beam scanning reflectarrays and novel wideband and polarization diversified planar antennas  

E-Print Network [OSTI]

to an array with the same aperture size. In view of the good features of the microstrip reflectarray including flat surface, low-profile, easy fabrication and installation during the space missions, the Jet Propulsion Laboratory (JPL) proposed the concept... of the Earth and other planets in the solar system. Recently, in order to obtain more accurate information of global rainfall, cloud density and surface topography of the Titan, JPL/NASA proposed the Titan Cloud Precipitation Radar and Altimeter (TCPRA...

Hsu, Shih-Hsun

2009-05-15T23:59:59.000Z

498

Febuxostat Compared with Allopurinol in Patients with Hyperuricemia and Gout  

Science Journals Connector (OSTI)

...reflects supersaturation of the extracellular fluid with urate and predisposes affected persons to gout. The clinical manifestations of gout (acute gouty arthritis, gouty arthropathy, chronic tophaceous gout, uric acid urolithiasis, and gouty nephropathy) result from deposition of monosodium urate or uric... In this randomized trial of patients with elevated uric acid levels and gout, febuxostat, a new nonpurine selective inhibitor of xanthine oxidase, was compared with allopurinol. The incidence of gout flares was similar in patients treated with allopurinol and febuxostat. Both doses of febuxostat (80 and 120 mg) were more effective than 300 mg of allopurinol in lowering uric acid levels.

Becker M.A.; Schumacher H.R.; Wortmann R.L.

2005-12-08T23:59:59.000Z

499

The Inflammasome — A Linebacker of Innate Defense  

Science Journals Connector (OSTI)

...than 200 years that the deposition of such crystals causes joint inflammation in patients with gout, but how it does so was unclear. These researchers showed that both monosodium urate (the crystal in gout) and calcium pyrophosphate dehydrate (the crystal in pseudogout) are detected by the cryopyrin... The cryopyrin gene, previously shown to be mutated in patients with periodic-fever syndrome, is critical in the innate immune response to some bacterial infections and to the inflammation that occurs after exposure to the crystalline material found in the joints of people with gout and pseudogout.

Drenth J.P.H.; van der Meer J.W.M.

2006-08-17T23:59:59.000Z

500

Legal Landscape of Tribal Renewable Energy Development Conference |  

Broader source: Energy.gov (indexed) [DOE]

Legal Landscape of Tribal Renewable Energy Development Conference Legal Landscape of Tribal Renewable Energy Development Conference Legal Landscape of Tribal Renewable Energy Development Conference November 21, 2013 8:30AM MST to November 22, 2013 4:30PM MST Tempe, Arizona The Office of Indian Energy and the Indian Legal Program (ILP) at the Sandra Day O'Connor College of Law at Arizona State University are co-hosting a two-day conference on the legal issues and considerations for developing renewable energy projects in Indian Country. Attendees will learn about: Federal Indian laws and regulations on leasing and right-of-ways, including the HEARTH Act and Tribal Energy Resource Agreements National Environmental Policy Act and National Historic Preservation Act State jurisdiction and taxation Transmission, including the power marketing authorities and legal