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Note: This page contains sample records for the topic "monosodium titanate mst" from the National Library of EnergyBeta (NLEBeta).
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1

LEACHING OF TITANIUM FROM MONOSODIUM TITANATE AND MODIFIED MST  

Science Conference Proceedings (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

TESTING AND CHARACTERIZATION OF ENGINEERED FORMS OF MONOSODIUM TITANATE (MST)  

Science Conference Proceedings (OSTI)

Engineered forms of MST and mMST were prepared at ORNL using an internal gelation process. Samples of these two materials were characterized at SRNL to examine particle size and morphology, peroxide content, tapped densities, and Na, Ti, and C content. Batch contact tests were also performed to examine the performance of the materials. The {sup E}mMST material was found to contain less than 10% of the peroxide found in a freshly prepared batch of mMST. This was also evidenced in batch contact testing with both simulated and actual waste, where little difference in performance was seen between the two engineered materials, {sup E}MST and {sup E}mMST. Based on these results, attempts were made to increase the peroxide content of the materials by post-treatment with hydrogen peroxide. The peroxide treatment resulted in a slight ({approx}10%) increase in peroxide content; however, the peroxide:Ti molar ratio was still much lower ({approx}0.1 X) than what is seen in a freshly prepared batch of mMST. Testing with simulated waste showed the performance of the peroxide treated materials was improved. Batch contact tests were also performed with an earlier (2003) prepared lot of {sup E}MST to examine the effect of ionic strength on the performance of the material. In general the results showed a decrease in removal performance with increasing ionic strength, which is consistent with previous testing with MST. A Sr loading isotherm was also determined, and the {sup E}MST material was found to reach a Sr loading as high as 13.2 wt % after 100 days of contact at a phase ratio of 20000 mL/g. At the typical MST phase ratio of 2500 mL/g (0.4 g/L), a Sr loading of 2.64 wt % was reached after 506 hours of contact. Samples of {sup E}MST and the post-peroxide treated {sup E}mMST were also tested in a column configuration using simulated waste solution. The breakthrough curves along with analysis of the sorbent beds at the conclusion of the experiments showed that the peroxide treated {sup E}mMST has a higher Sr and Np capacity, but that both materials have similar Pu capacities. The {sup E}MST removed a larger percentage of U than the peroxide treated {sup E}mMST, which is consistent with previous testing which showed that mMST has little affinity for U under these conditions.

Taylor-Pashow, K.; Nash, C.; Hobbs, D.

2012-05-14T23:59:59.000Z

3

URANIUM AND PLUTONIUM LOADING ONTO MONOSODIUM TITANATE MST IN TANK 50H  

SciTech Connect

A possible disposition pathway for the residue from the abandoned In-Tank Precipitation (ITP) sends the material from Tank 48H in increments to Saltstone via aggregation in Tank 50H. After entering Tank 50H, the amount of fissile material sorbed on MST may increase as a result of contacting waste solutions with dissolved uranium and plutonium. SRNL recommends that nuclear criticality safety evaluations use uranium and plutonium loadings onto MST of 14.0 {+-} 1.04 weight percent (wt %) for uranium and 2.79 {+-} 0.197 wt % for plutonium given the assumed streams defined in this report. These values derive from recently measured for conditions relevant to the Actinide Removal Process (ARP) and serve as conservative upper bounds for uranium and plutonium loadings during the proposed transfers of MST from Tank 48H into Tank 50H.

Hobbs, D

2006-08-31T23:59:59.000Z

4

ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #46000619120  

SciTech Connect

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

5

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

SciTech Connect

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

6

TAILORING INORGANIC SORBENTS FOR SRS STRONTIUM AND ACTINIDE SEPARATIONS: MODIFIED MONOSODIUM TITANATE PHASE III FINAL REPORT  

DOE Green Energy (OSTI)

This document provides a final report of Phase III testing activities for the development of modified monosodium titanate (mMST), which exhibits improved strontium and actinide removal characteristics compared to the baseline MST material. The activities included characterization of the crystalline phases present at varying temperatures, solids settling characteristics, quantification of the peroxide content; evaluation of the post-synthesis gas release under different conditions; the extent of desorption of {sup 85}Sr, Np, and Pu under washing conditions; and the effects of age and radiation on the performance of the mMST. Key findings and conclusions include the following. The peroxide content of several mMST samples was determined using iodometric titration. The peroxide content was found to decrease with age or upon extended exposure to elevated temperature. A loss of peroxide was also measured after exposure of the material to an alkaline salt solution similar in composition to the simulated waste solution. To determine if the loss of peroxide with age affects the performance of the material, Sr and actinide removal tests were conducted with samples of varying age. The oldest sample (4 years and 8 months) did show lower Sr and Pu removal performance. When compared to the youngest sample tested (1 month), the oldest sample retained only 15% of the DF for Pu. Previous testing with this sample indicated no decrease in Pu removal performance up to an age of 30 months. No loss in Np removal performance was observed for any of the aged samples, and no uptake of uranium occurred at the typical sorbent loading of 0.2 g/L. Additional testing with a uranium only simulant and higher mMST loading (3.0 g/L) indicated a 10% increase of uranium uptake for a sample aged 3 years and 8 months when compared to the results of the same sample measured at an age of 1 year and 5 months. Performance testing with both baseline-MST and mMST that had been irradiated in a gamma source to a total dose of 3.95 x 10{sup 6} R, indicated little to no affect on the performance of the material to remove Sr and actinides. Previous testing established that mMST releases oxygen gas during the synthesis, and continues to off-gas during storage post synthesis. The post-synthesis gas release rate was measured under several conditions, including varying the pH of the wash water and at elevated temperature (49 C, typical of bounding summertime storage without air conditioning). Results indicated that a high pH (basic) wash reduced the initial gas release rate, but after 2 days the release rates from all different pH washed samples were not statistically different. The gas release rate at 49 C, a temperature at which the material may be exposed to during shipping and storage, was consistently about 2.5 times higher than the rate at room temperature. All gas release results indicated that vented containers would be necessary for shipping and storage of large quantities of material. Suspension of sorbate-loaded solids into diluted solutions representing intermediate and final stages of washing for 24-hours revealed no evidence of desorption of Sr, Pu or Np from the mMST solids. Based on the results of the Phase III testing as well as that from earlier studies (Phases I and II), SRNL researchers recommend adopting the use of the mMST material for the removal of strontium and actinides from the SRS HLW supernatant liquids in the Actinide Removal Process and Salt Waste Processing Facility. Given the decrease in Sr and Pu removal performance for the mMST having an age of 4 years and 8 months, we recommend that mMST be used within 30 months of production. Furthermore we recommend that DOE provide funding to conduct pilot-scale testing of the mixing and settling characteristics of the mMST and impact, if any, on the generation of hydrogen during processing in the Defense Waste Processing Facility (DWPF).

Taylor-Pashow, K.; Hobbs, D.

2010-09-01T23:59:59.000Z

7

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

SciTech Connect

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

8

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

Science Conference Proceedings (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

9

DESORPTION OF SORBATES FROM MST, MMST, AND CST UNDER VARIOUS CONDITIONS  

Science Conference Proceedings (OSTI)

The Small Column Ion Exchange (SCIX) Program (formerly referred to as the Modular Salt Processing (MSP) Project) seeks to deploy equipment to remove the {sup 134,137}Cs, {sup 90}Sr, and alpha-emitting radionuclides (principally {sup 238,239,240}Pu and {sup 237}Np) from the high level waste salt solutions. The equipment is installed within a high level waste tank to take advantage of the shielding provided by the waste tank. The process will involve adding monosodium titanate (MST) to the waste tank (i.e., Tank 41H) to sorb the Sr and select actinides, removing the MST and entrained sludge with in-riser rotary microfilters, and subsequently using ion-exchange columns containing crystalline silicotitanate (CST) to remove the Cs. After being loaded with Cs, the CST will be ground to reduce the particle size and then transferred into another waste tank (e.g., Tank 40H). The MST and sludge solids stream will be transported to a sludge batch preparation tank (i.e., Tank 42H or Tank 51H) once the SCIX batch is processed. Both streams, MST/solids and CST, will ultimately be transported into and vitrified inside the Defense Waste Processing Facility (DWPF). A series of experiments were performed to examine desorption from monosodium titanate (MST), modified monosodium titanate (mMST), and crystalline silicotitanate (CST) under various conditions. The first two experiments examined desorption from MST and CST under two different sludge treatment processes, aluminum dissolution and sludge washing. Desorption of all sorbates was observed to varying degrees under the aluminum dissolution conditions. The extent of desorption ranged from < 3% to about 50% after 4 weeks, with Pu exhibiting the lowest desorption. At the end of the experiment, the temperature was reduced from 65 C to 25 C and the tests monitored for an additional two weeks. After reducing the temperature, partial resorption of the sorbates was observed with both MST and CST. Under the sludge washing conditions, no desorption of sorbates was observed with MST; however, some additional sorption did occur. For CST, a small amount of Cs leached from the material during the first day of testing, but no further leaching was observed over the remaining test period. The final test was designed to examine the possibility of desorption from both MST and mMST upon increasing the solid to liquid phase ratio. The results of these tests indicated some desorption of Pu from MST within the first two weeks after changing the phase ratio, then resorption of some of the leached Pu over the remaining 4 weeks of the experiment. No desorption of any sorbates was observed for mMST under these conditions.

Taylor-Pashow, K.; Hobbs, D.

2011-06-10T23:59:59.000Z

10

SAMPLE RESULTS FROM THE INTERIM SALT DISPOSITION PROGRAM MACROBATCH 7 TANK 21H QUALIFICATION MST SOLIDS SAMPLE  

Science Conference Proceedings (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.; Peters, T.

2013-09-19T23:59:59.000Z

11

LANL: Mechanical testing and modeling in MST  

NLE Websites -- All DOE Office Websites (Extended Search)

MST For information on mechanical testing in MST Division contact: Mark Bourke, bourke@lanl.gov Materials Science and Technology Division Facility Focus Materials Science and...

12

INCORPORATION OF MONO SODIUM TITANATE AND CRYSTALLINE SILICOTITANATE FEEDS IN HIGH LEVEL NUCLEAR WASTE GLASS  

Science Conference Proceedings (OSTI)

Four series of glass compositions were selected, fabricated, and characterized as part of a study to determine 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. All of the glasses studied were considerably more durable than the benchmark Environmental Assessment (EA) glass. The measured Product Consistency Test (PCT) responses were compared with the predicted values from the current DWPF durability model. One of the KT01-series and two of the KT03-series glasses had measured PCT responses that were outside the lower bound of the durability model. All of the KT04 glasses had durabilities that were predictable regardless of heat treatment or compositional view. In general, the measured viscosity values of the KT01, KT03, and KT04-series glasses are well predicted by the current DWPF viscosity model. The results of liquidus temperature (T{sub L}) measurements for the KT01-series glasses were mixed with regard to the predictability of the T{sub L} for each glass. All of the measured T{sub L} values were higher than the model predicted values, although most fell within the 95% confidence intervals. Overall, the results of this study show a reasonable ability to incorporate the anticipated SCIX streams into DWPF-type glass compositions with TiO{sub 2} concentrations of 4-5 wt % in glass.

Fox, K.; Johnson, F.; Edwards, T.

2010-11-23T23:59:59.000Z

13

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

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Materials Science (MST-16) Home About Us MST Related Links Research Highlights Focus on Facilities MST e-News Experimental Physical Sciences Vistas MaRIE: Matter-Radiation...

14

Los Alamos Lab: MST: Materials Research Highlights  

NLE Websites -- All DOE Office Websites (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)

15

CX-007012: Categorical Exclusion Determination  

Energy.gov (U.S. Department of Energy (DOE))

Monosodium Titanate (MST) RheologyCX(s) Applied: B3.6Date: 09/09/2011Location(s): Aiken, South CarolinaOffice(s): Environmental Management, National Energy Technology Laboratory

16

CX-009101: Categorical Exclusion Determination  

Energy.gov (U.S. Department of Energy (DOE))

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

17

Microsoft PowerPoint - 4-04 Hobbs.ppt  

NLE Websites -- All DOE Office Websites (Extended Search)

Flowsheet Close Print 3 Actinide Removal Process 90 Sr and alpha-emitting radionuclides (Pu, Np, U, Am) removed by ion exchange with monosodium titanate (MST) - NaHTi 2 O 5...

18

Los Alamos Lab: MST: Focus on Facilities  

NLE Websites -- All DOE Office Websites (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).

19

Materials Science & Technology, MST: Los Alamos National Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Investigations Laboratory Mechanical testing and modeling in MST Sigma Complex Los Alamos National Laboratory's Materials Science and Technology Division provides...

20

ORNL debuts Titan supercomputer  

E-Print Network (OSTI)

SCIENCE ORNL debuts Titan supercomputer ORNL has completed the installation of Titan and the opportunity for more advanced climate projections." Titan will be open to select projects while ORNL and Cray of Contents ORNL debuts Titan supercomputer. . . . . . . . . . . .1 Betty Matthews loves to travel

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

LANL: MST e-News April 2012  

NLE Websites -- All DOE Office Websites (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.

22

Glossary Term - Titans  

NLE Websites -- All DOE Office Websites (Extended Search)

Thor Previous Term (Thor) Glossary Main Index Next Term (Tritium) Tritium Titans In Greek mythology, the Titans are the offspring of Earth and Sky and ruled before being overthrown...

23

MST Mixing and Kinetics Studies in Support of SCIX Deployment ...  

Prevent tank closure problem ... mound. 14 Pump Parameters Needed to Initially Suspend MST Pump 2 Standard 2 Quad Volute 2 SMP U 0 D pilot-scale Did not suspend 1.56 ...

24

Optimization of Lithium Titanate Electrodes  

NLE Websites -- All DOE Office Websites (Extended Search)

Optimization of Lithium Titanate Electrodes Title Optimization of Lithium Titanate Electrodes Publication Type Journal Article Year of Publication 2006 Authors Christensen, John,...

25

FLSmidth Titan Teaming Profile  

NLE Websites -- All DOE Office Websites (Extended Search)

efficiency, processes, mechanical operation and controls for the crushing and vertical coal mill systems at the Titan Florida Cement - Pennsuco Plant. Project Summary FLS provided...

26

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), Academia Sinica Research Topics The following research fields constitute the spectrum of the Molecular Science and Technology (MST) graduate program: (1)Chemical dynamics and molecular spectroscopy: This topic

27

The TITAN reversed-field-pinch fusion reactor study  

SciTech Connect

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

28

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

NLE Websites -- All DOE Office Websites (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).

29

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

NLE Websites -- All DOE Office Websites (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

30

ms&t'11 plenary session features u.s. national science foundation ...  

Science Conference Proceedings (OSTI)

08/30 - MS&T'11 PLENARY SESSION FEATURES U.S. NATIONAL SCIENCE ... Dr. Wadsworth's presentation, “Responding to Increasing, Energy, ...

31

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

32

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

NLE Websites -- All DOE Office Websites (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

33

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

NLE Websites -- All DOE Office Websites (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;

34

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, Rayford G. (Bryan, TX); Dosch, Robert G. (Albuquerque, NM)

1993-01-01T23:59:59.000Z

35

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.

1991-12-31T23:59:59.000Z

36

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

37

Metal Detectives: New Book Details Titanic Investigation  

Science Conference Proceedings (OSTI)

Metal Detectives: New Book Details Titanic Investigation. For Immediate Release: April 15, 2008. ...

2012-10-02T23:59:59.000Z

38

Anomalous Wind Circulation Observed during 1997/98 El Niño Using Indian MST Radar  

Science Conference Proceedings (OSTI)

Unique facility of measuring vertical winds using Indian mesosphere–stratosphere–troposphere (MST) radar along with horizontal winds enables the study of the atmospheric circulation over Gadanki, India. Several important features are noted while ...

V. V. M. Jagannadha Rao; A. Narendra Babu; S. Vijaya Bhaskara Rao; D. Narayana Rao

2007-01-01T23:59:59.000Z

39

The TITAN reversed-field-pinch fusion reactor study  

SciTech Connect

This report discusses research on the titan-1 fusion power core. The major topics covered are: titan-1 fusion-power-core engineering; titan-1 divertor engineering; titan-1 tritium systems; titan-1 safety design and radioactive-waste disposal; and titan-1 maintenance procedures.

Not Available

1990-01-01T23:59:59.000Z

40

DECONTAMINATION FACTORS AND FILTRATION FLUX IMPACT TO ARP AT REDUCED MST CONCENTRATION  

SciTech Connect

Tank Farm and Closure Engineering is evaluating changes to the Actinide Removal Process facility operations to decrease the MST concentration from 0.4 g/L to 0.2 g/L and the contact time from 12 hours to between 6 and 8 hours. For this evaluation, SRNL reviewed previous datasets investigating the performance of MST at 0.2 g/L in salt solutions ranging from 4.5 to 7.5 M in sodium concentration. In general, reducing the MST concentration from 0.4 to 0.2 g/L and increasing the ionic strength from 4.5 to 7.5 M in sodium concentration will decrease the measured decontamination factors for plutonium, neptunium, uranium and strontium. The decontamination factors as well as single standard deviation values for each sorbate are reported. These values are applicable within the sorbate and sodium concentrations used in the experimental measurements. Decreasing the MST concentration in the ARP from 0.4 g/L to 0.2 g/L will produce an increase in the filter flux, and could lead to longer operating times between filter cleaning. The increase in flux is a function of a number of operating parameters, and is difficult to quantify. However, it is estimated that the reduction in MST could result in a reduction of filtration time of up to 20%.

Hobbs, D.

2012-06-27T23:59:59.000Z

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.


41

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

42

 

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

43

Optimizing the Performance of Lithium Titanate Spinal Paired...  

NLE Websites -- All DOE Office Websites (Extended Search)

Optimizing the Performance of Lithium Titanate Spinal Paired with Activated Carbon or Iron Phosphate Title Optimizing the Performance of Lithium Titanate Spinal Paired with...

44

FLSmidth Inc. and Titan Florida Cement Teaming Profile | ENERGY...  

NLE Websites -- All DOE Office Websites (Extended Search)

Inc. and Titan Florida Cement Teaming Profile cover page of document FLSmidth reduces energy at processing facilities saving Titan Florida Cement 55,000 annually. FLSmidth...

45

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

NLE Websites -- All DOE Office Websites (Extended Search)

Solvable problems Titan expands the realm of the possible Jim Pearce - May 03, 2013 Supercomputers like Jaguar and Titan allow researchers to simulate complex processes such as the...

46

Mean Vertical Velocities Measured by Indian MST Radar and Comparison with Indirectly Computed Values  

Science Conference Proceedings (OSTI)

Mean vertical velocities and their variations observed with Indian mesosphere–stratosphere–troposphere (MST) radar located at Gadanki (13.5°N, 79.2°E), a tropical station in India, are presented. In this study, a comparison has been made between ...

V. V. M. Jagannadha Rao; D. Narayana Rao; M. Venkat Ratnam; K. Mohan; S. Vijaya Bhaskar Rao

2003-04-01T23:59:59.000Z

47

A Study on Optimum Tilt Angle for Wind Estimation Using Indian MST Radar  

Science Conference Proceedings (OSTI)

The effect of tilt angle on horizontal wind estimation is studied using Indian mesosphere–stratosphere–troposphere (MST) radar located at Gadanki (13.45°N, 79.18°E). It operates in Doppler beam swinging (DBS) mode with a beamwidth of 3°. ...

V. K. Anandan; I. Srinivasa Rao; P. Narasimha Reddy

2008-09-01T23:59:59.000Z

48

Linux Helps Bring Titanic to Life  

Science Conference Proceedings (OSTI)

First article in a two part series on using Linux for visual effects in ”Titanic”. This article will focus on the technical aspects of the project

Darryl Strauss; Wook

1998-02-01T23:59:59.000Z

49

Mean winds observed with Indian MST radar over tropical mesosphere and comparison with various techniques  

E-Print Network (OSTI)

Abstract. Temporal variation of mean winds between the 65 to 85 km height region from the data collected over the course of approximately four years (1995–99), using the Indian MST radar located at Gadanki (13.5 ? N, 79.2 ? E), India is presented in this paper. Mesospheric mean winds and their seasonal variation in the horizontal and vertical components are presented in detail. Westward flows during each of the equinoxes and eastward flows during the solstices are observed in the zonal component. The features of the semiannual oscillation (SAO) and the quasi-biennial oscillation (QBO) in the zonal component are noted. In the meridional component, contours reveal a northward motion during the winter and a southward motion during the summer. Large inter-annual variability is found in the vertical component with magnitudes of the order of ±2 ms ?1. The MST observed winds are also compared with the winds observed by the MF radar located at Tirunelveli (8.7 ? N, 77.8 ? E), India, the High Resolution Doppler Imager (HRDI) onboard the Upper Atmospheric Research Satellite (UARS), and with the CIRA-86 model. A very good agreement is found between both the ground-based instruments (MST radar and MF radar) in the zonal component and there are few discrepancies in the meridional component. UARS/HRDI observed winds usually have larger magnitudes than the ground-based mean winds. Comparison of the MST derived winds with the CIRA-86 model in the zonal component shows that during the spring equinox and the summer, the winds agree fairly well, but there are a lot of discrepancies in the other seasons and the observed winds with the MST radar are less in magnitude, though the direction is same. The strengths and limitations in estimating reliable mesospheric mean winds using

M. Venkat Ratnam; D. Narayana Rao; T. Narayana Rao; S. Thulasiraman; J. B. Nee; S. Gurubaran; R. Rajaram

2000-01-01T23:59:59.000Z

50

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":""}]}

51

Hydrogen diffusion in Lead Zirconate Titanate and Barium Titanate  

SciTech Connect

Hydrogen is a potential clean-burning, next-generation fuel for vehicle and stationary power. Unfortunately, hydrogen is also well known to have serious materials compatibility issues in metals, polymers, and ceramics. Piezoelectric actuator materials proposed for low-cost, high efficiency high-pressure hydrogen internal combustion engines (HICE) are known to degrade rapidly in hydrogen. This limits their potential use and poses challenges for HICE. Hydrogen-induced degradation of piezoelectrics is also an issue for low-pressure hydrogen passivation in ferroelectric random access memory. Currently, there is a lack of data in the literature on hydrogen species diffusion in piezoelectrics in the temperature range appropriate for the HICE as charged via a gaseous route. We present 1HNMR quantification of the local hydrogen species diffusion within lead zirconate titanate and barium titanate on samples charged by exposure to high-pressure gaseous hydrogen ?32?MPa. Results are discussed in context of theoretically predicted interstitial hydrogen lattice sites and aqueous charging experiments from existing literature.

Alvine, Kyle J.; Vijayakumar, M.; Bowden, Mark E.; Schemer-Kohrn, Alan L.; Pitman, Stan G.

2012-08-28T23:59:59.000Z

52

Microsoft Word - Nano-sized Ion Exchange Particles.docx  

NLE Websites -- All DOE Office Websites (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

53

Titan Gets Computational Company | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Titan Gets Computational Company Jennifer Brouner - November 01, 2013 Eos, a Cray XC30 system has 744 nodes divided among four cabinets, is one of the OLCF's newest computing...

54

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

NLE Websites -- All DOE Office Websites (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.

55

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

NLE Websites -- All DOE Office Websites (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

56

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

NLE Websites -- All DOE Office Websites (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

57

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

NLE Websites -- All DOE Office Websites (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.

58

Structure and Properties of Piezoelectric Sodium Bismuth Titanate ...  

Science Conference Proceedings (OSTI)

Presentation Title, Structure and Properties of Piezoelectric Sodium Bismuth Titanate ... Nanostructures and Their Potential for Mechanical Energy Scavenging.

59

 

NLE Websites -- All DOE Office Websites (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,

60

 

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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,

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

Synthesis and characterization of new cystalline titanates  

E-Print Network (OSTI)

The determination of the effect of swelling and pillaring of hydrous crystalline titanates, labeled as the Types 3, 4 and 5, and hydrous crystalline silicon titanates, labeled as TAM-7 and 8, on their physical and catalytic properties was the main objective of this research. The synthesis of these layered materials had been reported previously by Anthony and Dosch (1 990) and Anthony et al. (I 992). Prior to scaling the synthesis from 3 grams to 100 grams batches for characterization purposes, the effect of the synthesis conditions was also studied by varying the reaction temperature and time. These titanates were found to be very sensitive to the synthesis conditions. Catalysts were characterized by atomic adsorption, X-Ray diffraction, sorption measurements, thermal gravimetric analysis and differential thermal analysis. By swelling and pillaring, the interlayer distance was increased up to 2.6 nm prior to calcination at 500 'C. Although pillaring the titanates, by employing n-alkylanline and inorganic compounds, did improve the catalytic activity and the stability of the titanates. the structures changed substantially when calcined at 500 'C for 24 hours.

Nge, Renita

1994-01-01T23:59:59.000Z

62

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":""}]}

63

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":""}]}

64

TITAN'S TRANSPORT-DRIVEN METHANE CYCLE  

SciTech Connect

The mechanisms behind the occurrence of large cloud outbursts and precipitation on Titan have been disputed. A global- and annual-mean estimate of surface fluxes indicated only 1% of the insolation, or {approx}0.04 W m{sup -2}, is exchanged as sensible and/or latent fluxes. Since these fluxes are responsible for driving atmospheric convection, it has been argued that moist convection should be quite rare and precipitation even rarer, even if evaporation globally dominates the surface-atmosphere energy exchange. In contrast, climate simulations indicate substantial cloud formation and/or precipitation. We argue that the top-of-atmosphere (TOA) radiative imbalance is diagnostic of horizontal heat transport by Titan's atmosphere, and thus constrains the strength of the methane cycle. Simple calculations show the TOA radiative imbalance is {approx}0.5-1 W m{sup -2} in Titan's equatorial region, which implies 2-3 MW of latitudinal heat transport by the atmosphere. Our simulation of Titan's climate suggests this transport may occur primarily as latent heat, with net evaporation at the equator and net accumulation at higher latitudes. Thus, the methane cycle could be 10-20 times previous estimates. Opposing seasonal transport at solstices, compensation by sensible heat transport, and focusing of precipitation by large-scale dynamics could further enhance the local, instantaneous strength of Titan's methane cycle by a factor of several. A limited supply of surface liquids in regions of large surface radiative imbalance may throttle the methane cycle, and if so, we predict more frequent large storms over the lakes district during Titan's northern summer.

Mitchell, Jonathan L. [Department of Earth and Space Sciences, Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA 90095 (United States)

2012-09-10T23:59:59.000Z

65

The Summer Wind Field Between 80 and 93 km Observed by the MST Radar at Poker Flat, Alaska (65°N)  

Science Conference Proceedings (OSTI)

Results of an analysis of the summertime wind field between 80–93 km over Poker Flat, Alaska are presented. The data were obtained using the large, but as yet incomplete, MST radar at Poker Flat, and cover the periods 17 June–13 July 1979, and 22 ...

D. A. Carter; B. B. Balsley

1982-12-01T23:59:59.000Z

66

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

NLE Websites -- All DOE Office Websites (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

67

U.S. Department of Energy Categorical Exclusion Determination Form  

NLE Websites -- All DOE Office Websites (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

68

U.S. Department of Energy Categorical Exclusion Determination Form  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

69

Titan's Obliquity as evidence for a subsurface ocean?  

E-Print Network (OSTI)

On the basis of gravity and radar observations with the Cassini spacecraft, the moment of inertia of Titan and the orientation of Titan's rotation axis have been estimated in recent studies. According to the observed orientation, Titan is close to the Cassini state. However, the observed obliquity is inconsistent with the estimate of the moment of inertia for an entirely solid Titan occupying the Cassini state. We propose a new Cassini state model for Titan in which we assume the presence of a liquid water ocean beneath an ice shell and consider the gravitational and pressure torques arising between the different layers of the satellite. With the new model, we find a closer agreement between the moment of inertia and the rotation state than for the solid case, strengthening the possibility that Titan has a subsurface ocean.

Baland, Rose-Marie; Yseboodt, Marie; Karatekin, Ozgur

2011-01-01T23:59:59.000Z

70

Dielectric Enhancement of Barium Titanate-based Nano-complex ...  

Science Conference Proceedings (OSTI)

Presentation Title, Dielectric Enhancement of Barium Titanate-based Nano- complex Ceramics with Heteroepitaxial Interfaces. Author(s), Satoshi Wada, Hideto ...

71

Titan Energy Systems Enfinity JV | Open Energy Information  

Open Energy Info (EERE)

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

72

Battery Electrode Materials Based on Layered Sodium Titanates  

Berkeley Lab researcher Marca Doeff and colleagues have developed a new electrode material based on a layered sodium titanate compound that can be ...

73

Barium Titanate-based Nanoceramics Prepared by Chemical ...  

Science Conference Proceedings (OSTI)

Presentation Title, Barium Titanate-based Nanoceramics Prepared by Chemical Coating Method for Application to Next Generation MLCC. Author(s), Xiaohui ...

74

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

NLE Websites -- All DOE Office Websites (Extended Search)

(ALCC) award, GE is using the hybrid CPUGPU Cray XK7 Titan supercomputer managed by the Oak Ridge Leadership Computing Facility (OLCF) at Oak Ridge National Laboratory to...

75

Titan Gets A Little Help | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Magazine ORNL Reporter DOE Pulse Media Contacts Media Mentions RSS Feeds News Home | ORNL | News | Media Mentions SHARE Titan Gets A Little Help November 19, 2013 With the...

76

Power Efficiency and Performance with ORNL's Cray XK7 Titan  

Science Conference Proceedings (OSTI)

This presentation provides some insights into ORNL's Cray XK7 Titan system and its power efficiency and performance. Keywords: Energy Efficiency, Power Profile

Jim Rogers

2012-11-01T23:59:59.000Z

77

Interior structure models and tidal Love numbers of Titan  

E-Print Network (OSTI)

of a differentiated Titan with an internal ammonia-water ocean and chondritic radiogenic heat production: Solid Surface Planets: Physical properties of materials; 6280 Planetology: Solar System Objects

Lorenz, Ralph D.

78

Scalable k-means statistics with Titan.  

SciTech Connect

This report summarizes existing statistical engines in VTK/Titan and presents both the serial and parallel k-means statistics engines. It is a sequel to [PT08], [BPRT09], and [PT09] which studied the parallel descriptive, correlative, multi-correlative, principal component analysis, and contingency engines. The ease of use of the new parallel k-means engine is illustrated by the means of C++ code snippets and algorithm verification is provided. This report justifies the design of the statistics engines with parallel scalability in mind, and provides scalability and speed-up analysis results for the k-means engine.

Thompson, David C.; Bennett, Janine C.; Pebay, Philippe Pierre

2009-11-01T23:59:59.000Z

79

Gelcasting of aluminum titanate. Final report  

SciTech Connect

This Cooperative Research and Development Agreement (CRADA) was undertaken to assess the applicability of the gelcasting process for forming automotive exhaust port liner green bodies using Golden Technologies` proprietary aluminum titanate powder composition. A gelcasting process, specifically tailored to Golden Technologies` powder, was developed and used successfully to form green bodies for property evaluation. Using appropriate milling and firing conditions, it was found that the gelcast material had properties which compared favorably with Golden Technologies` baseline material. Tubular gelcast samples simulating exhaust port liners were prepared and shipped to Golden Technologies for final process evaluation.

Nunn, S.D.; Stephan, J.E.

1997-08-01T23:59:59.000Z

80

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":""}]}

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

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

82

The TITAN reversed-field-pinch fusion reactor study  

SciTech Connect

This paper on titan plasma engineering contains papers on the following topics: reversed-field pinch as a fusion reactor; parametric systems studies; magnetics; burning-plasma simulations; plasma transient operations; current drive; and physics issues for compact RFP reactors.

Not Available

1990-01-01T23:59:59.000Z

83

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

84

Performance of Kepler GTX Titan GPUs and Xeon Phi System  

E-Print Network (OSTI)

NVIDIA's new architecture, Kepler improves GPU's performance significantly with the new streaming multiprocessor SMX. Along with the performance, NVIDIA has also introduced many new technologies such as direct parallelism, hyper-Q and GPU Direct with RDMA. Apart from other usual GPUs, NVIDIA also released another Kepler 'GeForce' GPU named GTX Titan. GeForce GTX Titan is not only good for gaming but also good for high performance computing with CUDA. Nevertheless, it is remarkably cheaper than Kepler Tesla GPUs. We investigate the performance of GTX Titan and find out how to optimize a CUDA code appropriately for it. Meanwhile, Intel has launched its new many integrated core (MIC) system, Xeon Phi. A Xeon Phi coprocessor could provide similar performance with NVIDIA Kepler GPUs theoretically but, in reality, it turns out that its performance is significantly inferior to GTX Titan.

Hwancheol Jeong; Weonjong Lee; Jeonghwan Pak; Kwang-jong Choi; Sang-Hyun Park; Jun-sik Yoo; Joo Hwan Kim; Joungjin Lee; Young Woo Lee

2013-11-04T23:59:59.000Z

85

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

86

The TITAN Reversed-Field Pinch fusion reactor study  

Science Conference Proceedings (OSTI)

The TITAN Reversed-Field Pinch (RFP) fusion reactor study is a multi-institutional research effort to determine the technical feasibility and key developmental issues of an RFP fusion reactor, especially at high power density, and to determine the potential economics, operations, safety, and environmental features of high-mass-power-density fusion systems. The TITAN conceptual designs are DT burning, 1000 MWe power reactors based on the RFP confinement concept. The designs are compact, have a high neutron wall loading of 18 MW/m{sup 2} and a mass power density of 700 kWe/tonne. The inherent characteristics of the RFP confinement concept make fusion reactors with such a high mass power density possible. Two different detailed designs have emerged: the TITAN-I lithium-vanadium design, incorporating the integrated-blanket-coil concept; and the TITAN-II aqueous loop-in-pool design with ferritic steel structure. This report contains a collection of 16 papers on the results of the TITAN study which were presented at the International Symposium on Fusion Nuclear Technology. This collection describes the TITAN research effort, and specifically the TITAN-I and TITAN-II designs, summarizing the major results, the key technical issues, and the central conclusions and recommendations. Overall, the basic conclusions are that high-mass power-density fusion reactors appear to be technically feasible even with neutron wall loadings up to 20 MW/m{sup 2}; that single-piece maintenance of the FPC is possible and advantageous; that the economics of the reactor is enhanced by its compactness; and the safety and environmental features need not to be sacrificed in high-power-density designs. The fact that two design approaches have emerged, and others may also be possible, in some sense indicates the robustness of the general findings.

Not Available

1988-03-01T23:59:59.000Z

87

A Brief Climatology of Vertical Wind Variability in the Troposphere and Stratosphere as Seen by the Poker Flat, Alaska, MST Radar  

Science Conference Proceedings (OSTI)

A statistical analysis of vertical air motion has been performed for data taken in the 3-20 km altitude range by the Poker Flat MST radar during the period September 1979-January 1982. The variability of vertical velocities is analyzed as a ...

G. D. Nastrom; K. S. Gage

1984-03-01T23:59:59.000Z

88

DWPF FLOWSHEET STUDIES WITH SIMULANT TO DETERMINE THE IMPACT OF NEXT GENERATION SOLVENT ON THE CPC PROCESS AND GLASS FORMULATION  

SciTech Connect

As a part of the Actinide Removal Process (ARP)/Modular Caustic Side Solvent Extraction Unit (MCU) Life Extension Project, a next generation solvent (NGS), a new strip acid, and modified monosodium titanate (mMST) will be deployed. The NGS is comprised of four components: 0.050 M MaxCalix (extractant), 0.50 M Cs-7SB (modifier), 0.003 M guanidine-LIX-79, with the balance ({approx}74 wt%) being Isopar{reg_sign} L. The strip acid will be changed from dilute nitric acid to dilute boric acid (0.01 M). Because of these changes, experimental testing with the next generation solvent and mMST was required to determine the impact of these changes in 512-S and Defense Waste Processing Facility (DWPF) operations, as well as Chemical Process Cell (CPC), glass formulation activities, and melter operations. Because of these changes, experimental testing with the next generation solvent and mMST is required to determine the impact of these changes. A Technical Task Request (TTR) was issued to support the assessments of the impact of the next generation solvent and mMST on the downstream DWPF flowsheet unit. The TTR identified five tasks to be investigated: (1) CPC Flowsheet Demonstration for NGS; (2) Solvent Stability for DWPF CPC Conditions; (3) Glass Formulation Studies; (4) Boron Volatility and Melt Rate; and (5) CPC Flowsheet Demonstration for mMST.

Newell, J.; Peeler, D.; Edwards, T.; Hay, M.; Stone, M.

2011-06-29T23:59:59.000Z

89

CX-005110: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

90

IDENTIFICATION AND CHARACTERIZATION OF THE SOLIDS FOUND IN EXTRACTION CONTACTOR SEP-401 IN JUNE 2012  

Science Conference Proceedings (OSTI)

The Modular Caustic-Side Solvent Extraction Unit (MCU) recently conducted an outage that included maintenance on the centrifugal contactors. Operations personnel observed solids or deposits in two contactors and attempted to collect samples for analyses by Savannah River National Laboratory (SRNL). The residues found in Extraction Contactor SEP-401 are a mixture of amorphous silica, aluminosilicate, titanium, and debris from low alloy steel. The solids contain low concentrations of plutonium and strontium. These isotopes are associated with the titanium that came from the monosodium titanate (MST) added in the Actinide Removal Process (ARP) most likely as leached Ti from the MST that precipitated subsequently in MCU. An attempt was also made to obtain samples from the contents of Wash Contactor SEP-702. However, sampling provide ineffective.

Fondeur, F.; Fink, S.

2012-12-10T23:59:59.000Z

91

JOM Article on The Titanic: Did a Metallurgical Failure Cause a ...  

Science Conference Proceedings (OSTI)

R. Ormond, "Titanic and Underwater Archaeology: The National Maritime Museum View," The IXth International Congress of Maritime Museums: Proceedings ...

92

Determination of the Impact of Glycolate on ARP and MCU Operations  

Science Conference Proceedings (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

93

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

94

Northern Virginia Technology Council Titans' Breakfast | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

95

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

NLE Websites -- All DOE Office Websites (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

96

Thermodynamic restrictions on mechanosynthesis of strontium titanate  

SciTech Connect

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

97

Task completion report for investigating why output signal-variable values differ from their output component-parameter values in test problem MST2  

SciTech Connect

Signal-variable values and their component-parameter values differ in an end-of-timestep edit to the TRCOUT and TRCGRF files because signal variables have beginning-of-timestep values, and component parameters have end-of-timestep values. Oscillatory divergence in the MST2 standard test problem after 9000 s occurs because of TRAC-P`s numerical evaluation at a 1000 material Courant number. The magnitude of that divergence has diminished by a factor of 3.5 from Version 5.3.01 to 5.4.15 and by a factor of 25 from Version 5.4.15 to 5.4.28. That divergence can be eliminated by evaluating MST2 with a maximum material Courant number of 500.

Steinke, R.G.

1997-09-10T23:59:59.000Z

98

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

99

SRNL - News Room  

NLE Websites -- All DOE Office Websites (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).

100

Preprint typeset using L ATEX style emulateapj v. 7/15/03 PROPANE ON TITAN  

E-Print Network (OSTI)

We present the first observations of propane (C3H8) on Titan that unambiguously resolve propane features from other numerous stratospheric emissions. This is accomplished using a R = ?/?? ? 10 5 spectrometer (TEXES) to observe propane’s ?26 rotation-vibration band near 748 cm ?1. We find a best-fit fractional abundance of propane in Titan’s stratosphere of (6.2 ± 1.2) × 10 ?7 in the altitude range to which we are sensitive (90-250 km or 13-0.24 mbar). Subject headings: planets and satellites: Titan, infrared: solar system, molecular data

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

2003-01-01T23:59:59.000Z

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.


101

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

102

Preparation of silica or alumina pillared crystalline titanates  

Science Conference Proceedings (OSTI)

Layered crystalline titanates (CT) [Anthony and Dosch, US Patent 5 177 045 (1993)] are pillared with tetraethyl orthosilicate, 3-aminopropyltrimethoxysilane, and aluminum acetylacetonate to prepare porous and high surface area supports for sulfided NiMo catalyst. Tetra-ethyl orthosilicate or aluminum acetylacetonate intercalated CT are prepared by stepwise intercalation. First, the basal distance is increased by n-alkylammonium ions prior to intercalation with inorganic compounds. However, an aqueous solution of 3-aminopropyltrimethoxysilane could directly pillar CT without first swelling the titanate with n-alkylamine. The catalytic activities for hydrogenation of pyrene of sulfided NiMo supported silica or alumina pillared CT were higher than those of commercial catalysts (Shell324 and Amocat1C). The silicon and aluminum contents of the pillared CT, used as supports, have a considerable effect on the catalytic activities and physical properties of the supports.

Udomsak, S.; Nge, R.; Dufner, D.C.; Anthony, R.G. [Texas A and M Univ., College Station, TX (United States); Lott, S.E. [Sandia National Labs., Albuquerque, NM (United States)

1994-05-01T23:59:59.000Z

103

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":""}]}

104

Sequestration of ethane in the cryovolcanic subsurface of Titan  

E-Print Network (OSTI)

Saturn's largest satellite, Titan, has a thick atmosphere dominated by nitrogen and methane. The dense orange-brown smog hiding the satellite's surface is produced by photochemical reactions of methane, nitrogen and their dissociation products with solar ultraviolet, which lead primarily to the formation of ethane and heavier hydrocarbons. In the years prior to the exploration of Titan's surface by the Cassini-Huygens spacecraft, the production and condensation of ethane was expected to have formed a satellite-wide ocean one kilometer in depth, assuming that it was generated over the Solar system's lifetime. However, Cassini-Huygens observations failed to find any evidence of such an ocean. Here we describe the main cause of the ethane deficiency on Titan: cryovolcanic lavas regularly cover its surface, leading to the percolation of the liquid hydrocarbons through this porous material and its accumulation in subsurface layers built up during successive methane outgassing events. The liquid stored in the pores may, combined with the ice layers, form a stable ethane-rich clathrate reservoir, potentially isolated from the surface. Even with a low open porosity of 10% for the subsurface layers, a cryovolcanic icy crust less than 2300 m thick is required to bury all the liquid hydrocarbons generated over the Solar system's lifetime.

Olivier Mousis; Bernard Schmitt

2008-02-07T23:59:59.000Z

105

Midterm Summary of Japan-US Fusion Cooperation Program TITAN  

SciTech Connect

Japan-US cooperation program TITAN (Tritium, Irradiation and Thermofluid for America and Nippon) started in April 2007 as 6-year project. This is the summary report at the midterm of the project. Historical overview of the Japan-US cooperation programs and direction of the TITAN project in its second half are presented in addition to the technical highlights. Blankets are component systems whose principal functions are extraction of heat and tritium. Thus it is crucial to clarify the potentiality for controlling heat and tritium flow throughout the first wall, blanket and out-of-vessel recovery systems. The TITAN project continues the JUPITER-II activity but extends its scope including the first wall and the recovery systems with the title of 'Tritium and thermofluid control for magnetic and inertial confinement systems'. The objective of the program is to clarify the mechanisms of tritium and heat transfer throughout the first-wall, the blanket and the heat/tritium recovery systems under specific conditions to fusion such as irradiation, high heat flux, circulation and high magnetic fields. Based on integrated models, the breeding, transfer, inventory of tritium and heat extraction properties will be evaluated for some representative liquid breeder blankets and the necessary database will be obtained for focused research in the future.

Muroga, Takeo [National Institute for Fusion Science, Toki, Japan; Sze, Dai-Kai [University of California, San Diego; Sokolov, Mikhail [ORNL; Katoh, Yutai [ORNL; Stoller, Roger E [ORNL

2011-01-01T23:59:59.000Z

106

MST: Organizations: Organic Materials  

NLE Websites -- All DOE Office Websites (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

107

MST: Organizations: Manufacturing Processing  

NLE Websites -- All DOE Office Websites (Extended Search)

and mechanical liaison group works with inside shops and over 2000 outside suppliers. Welding, Fabrication, & Assembly Onsite or remote welding, assembly and repair Precision...

108

MS&T'14  

Science Conference Proceedings (OSTI)

Energy Storage IV: Materials, Systems and Applications Symposium · Failure Analysis and ... Green Technologies for Materials Manufacturing and Processing VI.

109

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

110

ISOTOPIC RATIOS IN TITAN's METHANE: MEASUREMENTS AND MODELING  

SciTech Connect

The existence of methane in Titan's atmosphere ({approx}6% level at the surface) presents a unique enigma, as photochemical models predict that the current inventory will be entirely depleted by photochemistry in a timescale of {approx}20 Myr. In this paper, we examine the clues available from isotopic ratios ({sup 12}C/{sup 13}C and D/H) in Titan's methane as to the past atmosphere history of this species. We first analyze recent infrared spectra of CH{sub 4} collected by the Cassini Composite Infrared Spectrometer, measuring simultaneously for the first time the abundances of all three detected minor isotopologues: {sup 13}CH{sub 4}, {sup 12}CH{sub 3}D, and {sup 13}CH{sub 3}D. From these we compute estimates of {sup 12}C/{sup 13}C = 86.5 {+-} 8.2 and D/H = (1.59 {+-} 0.33) Multiplication-Sign 10{sup -4}, in agreement with recent results from the Huygens GCMS and Cassini INMS instruments. We also use the transition state theory to estimate the fractionation that occurs in carbon and hydrogen during a critical reaction that plays a key role in the chemical depletion of Titan's methane: CH{sub 4} + C{sub 2}H {yields} CH{sub 3} + C{sub 2}H{sub 2}. Using these new measurements and predictions we proceed to model the time evolution of {sup 12}C/{sup 13}C and D/H in Titan's methane under several prototypical replenishment scenarios. In our Model 1 (no resupply of CH{sub 4}), we find that the present-day {sup 12}C/{sup 13}C implies that the CH{sub 4} entered the atmosphere 60-1600 Myr ago if methane is depleted by chemistry and photolysis alone, but much more recently-most likely less than 10 Myr ago-if hydrodynamic escape is also occurring. On the other hand, if methane has been continuously supplied at the replenishment rate then the isotopic ratios provide no constraints, and likewise for the case where atmospheric methane is increasing. We conclude by discussing how these findings may be combined with other evidence to constrain the overall history of the atmospheric methane.

Nixon, C. A.; Achterberg, R. K. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); Temelso, B. [Dean's Office, College of Arts and Sciences, Department of Chemistry, Bucknell University, Lewisburg, PA 17837 (United States); Vinatier, S.; Bezard, B.; Coustenis, A. [LESIA, Observatoire de Paris, CNRS, 5 Place Jules Janssen, 92195 Meudon Cedex (France); Teanby, N. A. [School of Earth Sciences, University of Bristol, Wills Memorial Building, Queen's Road, Bristol BS8 1RJ (United Kingdom); Mandt, K. E. [Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78228 (United States); Sherrill, C. D. [School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, GA 30332-0400 (United States); Irwin, P. G. J. [Atmospheric, Oceanic and Planetary Physics, University of Oxford, Clarendon Laboratory, Parks Road, Oxford OX1 3PU (United Kingdom); Jennings, D. E.; Romani, P. N.; Flasar, F. M. [Planetary Systems Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2012-04-20T23:59:59.000Z

111

AN ESTIMATE OF THE CHEMICAL COMPOSITION OF TITAN's LAKES  

SciTech Connect

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

112

Photolytically generated aerosols in the mesosphere and thermosphere of Titan  

E-Print Network (OSTI)

Analysis of the Cassini Ultraviolet Imaging Spectrometer (UVIS) stellar and solar occultations at Titan to date include 12 species: N$_{2}$ (nitrogen), CH$_{4}$ (methane), C$_{2}$H$_{2}$ (acetylene), C$_{2}$H$_{4}$ (ethylene), C$_{2}$H$_{6}$ (ethane), C$_{4}$H$_{2}$ (diacetylene), C$_{6}$H$_{6}$ (benzene), C$_{6}$N$_{2}$ (dicyanodiacetylene), C$_{2}$N$_{2}$ (cyanogen), HCN (hydrogen cyanide), HC$_{3}$N (cyanoacetylene), and aerosols distinguished by a structureless continuum extinction (absorption plus scattering) of photons in the EUV. The introduction of aerosol particles, retaining the same refractive index properties as tholin with radius $\\sim$125 \\AA and using Mie theory, provides a satisfactory fit to the spectra. The derived vertical profile of aerosol density shows distinct structure, implying a reactive generation process reaching altitudes more than 1000 km above the surface. A photochemical model presented here provides a reference basis for examining the chemical and physical processes leading to the distinctive atmospheric opacity at Titan. We find that dicyanodiacetylene is condensable at $\\sim$650 km, where the atmospheric temperature minimum is located. This species is the simplest molecule identified to be condensable. Observations are needed to confirm the existence and production rates of dicyanodiacetylene.

Mao-Chang Liang; Yuk L. Yung; Donald E. Shemansky

2007-05-01T23:59:59.000Z

113

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

114

Evaluation of a heated-air airship for the environment of Titan  

E-Print Network (OSTI)

Future exploration of Saturn's moon Titan can be carried out by airships, which have the capability to study the atmosphere as well as the capability to land and study the surface at multiple locations. Several lighter-than-air ...

Heller, Richard, S.M. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

115

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

116

CX-002880: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

117

Microsoft PowerPoint - Campbell-1.ppt  

NLE Websites -- All DOE Office Websites (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

118

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

119

The effect of adding crystalline silicotitanate on the durability, liquidus, and viscosity of simulated high-level waste glasses at Savannah River Site  

SciTech Connect

This report provides a summary of the results obtained for a limited variability study for glasses containing Crystalline Silicotitanate (CST), Monosodium Titanate (MST), and either simulated Purex or HM sludge. Twenty-two glasses containing Purex sludge and three glasses containing HM sludge were fabricated and tested. The fabricated glasses were tested for durability using the 7-day Product Consistency Test (PCT) and characterized by measuring the viscosity at 1,150 C and by determining an approximate, bounding liquidus temperature. The current models used by Defense Waste Processing Facility (DWPF) for predicting durability, viscosity, and liquidus temperature were applied to all 25 glasses. The goal of this work was to identify any major problems from a glass perspective, within the scope of this effort, which could potentially preclude the use of CST at DWPF.

Harbour, J.R.

2000-01-26T23:59:59.000Z

120

Formation of titanate nanostructures under different NaOH concentration and their application in wastewater treatment  

SciTech Connect

The effects of the concentration of NaOH on the formation and transformation of various titanate nanostructures were studied. With increasing NaOH concentration, three different formation mechanisms were proposed. Nanotubes can only be obtained under moderate NaOH conditions, and should transform into nanowires with prolonged hydrothermal treatment, and their formation rate is accelerated by increasing NaOH concentration. Low concentration of NaOH results in the direct formation of nanowires, while extra high concentration of NaOH leads to the formation of amorphous nanoparticles. Adsorption and photocatalysis studies show that titanate nanowires and nanotubes might be potential adsorbents for the removal of both heavy metal ions and dyes and photocatalysts for the removal of dyes from wastewater. -- Graphical abstract: The morphologies of the titanates depend deeply on the concentration of NaOH. With increasing NaOH concentration, three different formation mechanisms were proposed. The application of these titanate nanostructures in the wastewater treatment was studied. Display Omitted Research highlights: {yields} Effect of NaOH concentration on the structures of various titanates was reported. {yields} Three different formation mechanisms were presented with increasing NaOH concentration. {yields} Various titanates were used as adsorbents/photocatalysts in wastewater treatment.

Huang Jiquan [Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 (China); Graduate school of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, 100049 (China); Cao Yongge, E-mail: caoyongge@fjirsm.ac.c [Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 (China); Deng Zhonghua; Tong Hao [Key Lab of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002 (China)

2011-03-15T23:59:59.000Z

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.


121

Barium titanate nanocomposite capacitor FY09 year end report.  

DOE Green Energy (OSTI)

This late start RTBF project started the development of barium titanate (BTO)/glass nanocomposite capacitors for future and emerging energy storage applications. The long term goal of this work is to decrease the size, weight, and cost of ceramic capacitors while increasing their reliability. Ceramic-based nanocomposites have the potential to yield materials with enhanced permittivity, breakdown strength (BDS), and reduced strain, which can increase the energy density of capacitors and increase their shot life. Composites of BTO in glass will limit grain growth during device fabrication (preserving nanoparticle grain size and enhanced properties), resulting in devices with improved density, permittivity, BDS, and shot life. BTO will eliminate the issues associated with Pb toxicity and volatility as well as the variation in energy storage vs. temperature of PZT based devices. During the last six months of FY09 this work focused on developing syntheses for BTO nanoparticles and firing profiles for sintering BTO/glass composite capacitors.

Stevens, Tyler E.; DiAntonio, Christopher Brian; Yang, Pin; Chavez, Tom P.; Winter, Michael R.; Monson, Todd C.; Roesler, Alexander William; Fellows, Benjamin D.

2009-11-01T23:59:59.000Z

122

Review of ARAC's involvement in the Titan II missile accident  

SciTech Connect

The Atmospheric Release Advisory Capability (ARAC) response to the Titan II accident near Damascus, Arkansas on 19 September 1980 entailed 12 personnel for periods ranging from 2 to 12 hours. The first call was a NEST Standby alert at 0415L (PCT), followed by a request for dispersal calculations at 0615L, personnel callout at 0630L, crude estimates of plausible source term scenarios at 0845-0900L, first model calculations at 1130L and final model calculations at 1500L. While several new firsts were recorded for ARAC, demonstrating expanded capabilities for NEST-type responses, time lines were very long, essential information was very scant to non-existent, and useful communication of final calculations to the accident site impossible. A detailed chronology is found in Appendix A and a list of acronyms and abbreviations is contained in Appendix B.

Sullivan, T.J.

1980-10-01T23:59:59.000Z

123

On the chemical composition of Titan's dry lakebed evaporites  

E-Print Network (OSTI)

Titan, the main satellite of Saturn, has an active cycle of methane in its troposphere. Among other evidence for a mechanism of evaporation at work on the ground, dry lakebeds have been discovered. Recent Cassini infrared observations of these empty lakes have revealed a surface composition poor in water ice compared to that of the surrounding terrains --- suggesting the existence of organic evaporites deposits. The chemical composition of these possible evaporites is unknown. In this paper, we study evaporite composition using a model that treats both organic solids dissolution and solvent evaporation. Our results suggest the possibility of large abundances of butane and acetylene in the lake evaporites. However, due to uncertainties of the employed theory, these determinations have to be confirmed by laboratory experiments.

Cordier, Daniel; Ferreira, Abel

2013-01-01T23:59:59.000Z

124

Nanoscale Strontium Titanate Photocatalysts for Overall Water Splitting  

SciTech Connect

SrTiO3 (STO) is a large band gap (3.2 eV) semiconductor that catalyzes the overall water splitting reaction under UV light irradiation in the presence of a NiO cocatalyst. As we show here, the reactivity persists in nanoscale particles of the material, although the process is less effective at the nanoscale. To reach these conclusions, Bulk STO, 30 ± 5 nm STO, and 6.5 ± 1 nm STO were synthesized by three different methods, their crystal structures verified with XRD and their morphology observed with HRTEM before and after NiO deposition. In connection with NiO, all samples split water into stoichiometric mixtures of H2 and O2, but the activity is decreasing from 28 ?mol H2 g–1 h–1 (bulk STO), to 19.4 ?mol H2 g–1 h–1 (30 nm STO), and 3.0 ?mol H2 g–1 h–1 (6.5 nm STO). The reasons for this decrease are an increase of the water oxidation overpotential for the smaller particles and reduced light absorption due to a quantum size effect. Overall, these findings establish the first nanoscale titanate photocatalyst for overall water splitting.

Townsend, Troy K.; Browning, Nigel D.; Osterloh, Frank

2012-08-28T23:59:59.000Z

125

The TITAN Reversed-Field Pinch Reactor: Design-point determination and parametric studies  

SciTech Connect

The multi-institutional TITAN study has examined the physics, technology, safety, and economics issues associated with the operation of a Reversed-Field Pinch (RFP) magnetic fusion reactor at high power density. A comprehensive system and trade study have been conducted as an integral and ongoing part of the reactor assessment. Attractive design points emerging from these parametric studies are subjected to more detailed analysis and design integration, the results of which are used to refine the parametric systems model. The design points and tradeoffs for two TITAN/RFP reactor embodiments are discussed. 14 refs.

Miller, R.L.

1987-01-01T23:59:59.000Z

126

RHEOLOGY OF SETTLED SOLIDS IN THE SMALL COLUMN ION EXCHANGE PROCESS  

SciTech Connect

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

127

DETERMINATION OF THE IMPACT OF GLYCOLATE ON ARP AND MCU OPERATIONS  

Science Conference Proceedings (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

128

DETERMINATION OF THE IMPACT OF GLYCOLATE ON ARP AND MCU OPERATIONS  

SciTech Connect

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

129

RADIAL TRANSPORT EFFECTS ON ECCD IN THE TCV AND DIII-D TOKAMAKS AND ON OHMIC DISCHARGES IN THE MST RFP  

Science Conference Proceedings (OSTI)

The comprehensive CQL3D Fokker-Planck/Quasilinear simulation code has been benchmarked against experiment over a wide range of electron cyclotron conditions in the DIII-D tokamak (C.C. Petty et al., 14th Topical Conf. on RF Power in Plasmas, 2002). The same code, in disagreement with experiment, gives 560 kA of ECCD for a well documented, completely ECCD-driven, 100 kA TCV shot [O. Sauter et al, PRL, 2000]. Recent work (R.W. Harvey et al, Phys. Rev. Lett., 2002) has resolved the differences as due to radial transport at a level closely consistent with ITER scaling. Transport does not substantially affect DIII-D ECCD, but at similar ECH power has an overwhelming effect on the much smaller TCV. The transport is consistent with electrostatic-type diffusion (D{sub {rho}{rho}} constant in velocity-space) and not with a magnetic-type diffusion (D{sub {rho}{rho}} {proportional_to} |v{parallel}|). Fokker-Planck simulation of Ohmic reversed field pinch (RFP) discharges in the MST device reveals transport velocity dependence stronger than |v{parallel}| will give agreement with current and soft X-ray spectra in standard discharges, but in the higher confinement, current profile controlled PPCD discharges, transport is again electrostatic-like. This is consistent with the object of PPCD, which is to replace magnetic turbulence driven current with auxiliary CD to improve transport. The tokamak and high-confinement RFP results mutually reinforce the constant-in-velocity-space ''electrostatic-type turbulence'' conclusion. The steady-state energy and toroidal current are governed by the same radial transport equation.

HARVEY, R.W.; SAUTER, O.; PRATER, R.; NIKKOLA, P.; O'CONNELL, R.; FOREST, C.B.

2002-07-01T23:59:59.000Z

130

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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.

131

One-pot, high-yield synthesis of titanate nanotube bundles decorated by Pd (Au) clusters for stable electrooxidation of methanol  

Science Conference Proceedings (OSTI)

Titanate nanotube bundles assembled by several simple nanotubes were synthesized through a simple reaction between TiO{sub 2} crystallites and highly concentrated NaOH in the presence of Au or Pd sols. Due to the unique scrolling growth mechanism of titanate nanotubes (TNTs), Au or Pd clusters were encapsulated in situ by TNTs, and titanate/Au and titanate/Pd nanotube bundles were formed. In comparison with carbon nanotubes (CNTs) or active carbon that was widely used as carriers to support metal clusters, TNTs bundles can immobilize the metal clusters tightly and overcome the shortcoming of exfoliation of metal clusters from the carriers. The as-prepared titanate/metal hybrids possess mesoporosity and high surface area. The electrochemical oxidation of methanol demonstrates that titanate/Pd hybrids exhibit high electrocatalytic activity and excellent stability, and hence they should be ideal catalyst candidates in direct methanol fuel cells (DMFCs). - Graphical abstract: Titanate/Au and titanate/Pd nanotube bundles have been fabricated by taking advantage of the unique scrolling growth mechanism of titanate tubes. The titanate/Pd hybrids show stable catalytic effects toward the electrooxidation of methanol.

Xue Xiudong [Key Lab of Organic Synthesis of Jiangsu Province and Department of Chemistry, Soochow University, Suzhou, Jiangsu 215123 (China); Gu Li [College of Biology and Chemical Engineering, Jiaxing University, Jiaxing, Zhejiang 314001 (China); Cao Xuebo, E-mail: xbcao@suda.edu.c [Key Lab of Organic Synthesis of Jiangsu Province and Department of Chemistry, Soochow University, Suzhou, Jiangsu 215123 (China); Song Yingying; Zhu Lianwen; Chen Peng [Key Lab of Organic Synthesis of Jiangsu Province and Department of Chemistry, Soochow University, Suzhou, Jiangsu 215123 (China)

2009-10-15T23:59:59.000Z

132

TITAN'S BULK COMPOSITION CONSTRAINED BY CASSINI-HUYGENS: IMPLICATION FOR INTERNAL OUTGASSING  

SciTech Connect

In the present report, by using a series of data gathered by the Cassini-Huygens mission, we constrain the bulk content of Titan's interior for various gas species (CH{sub 4}, CO{sub 2}, CO, NH{sub 3}, H{sub 2}S, Ar, Ne, Xe), and we show that most of the gas compounds (except H{sub 2}S and Xe) initially incorporated within Titan are likely stored dissolved in the subsurface water ocean. CO{sub 2} is likely to be the most abundant gas species (up to 3% of Titan's total mass), while ammonia should not exceed 1.5 wt%. We predict that only a moderate fraction of CH{sub 4}, CO{sub 2}, and CO should be incorporated in the crust in the form of clathrate hydrates. By contrast, most of the H{sub 2}S and Xe should be incorporated at the base of the subsurface ocean, in the form of heavy clathrate hydrates within the high-pressure ice layer. Moreover, we show that the rocky phase of Titan, assuming a composition similar to CI carbonaceous chondrites, is a likely source for the noble gas isotopes ({sup 40}Ar, {sup 36}Ar, {sup 22}Ne) that have been detected in the atmosphere. A chondritic core may also potentially contribute to the methane inventory. Our calculations show that a moderate outgassing of methane containing traces of neon and argon from the subsurface ocean would be sufficient to explain the abundance estimated by the Gas Chromatograph Mass Spectrometer. The extraction process, implying partial clathration in the ice layers and exsolvation from the water ocean, may explain why the {sup 22}Ne/{sup 36}Ar ratio in Titan's atmosphere appears higher than the ratio in carbonaceous chondrites.

Tobie, G. [Universite de Nantes, LPGNantes, UMR 6112, F-44322 Nantes (France); Gautier, D. [LESIA, Observatoire de Paris, F-92195 Meudon Cedex (France); Hersant, F. [Universite Bordeaux, LAB, UMR 5804, F-33270, Floirac (France)

2012-06-20T23:59:59.000Z

133

Analysis of light curves from the 2003 Nov 14 occultation by Titan of TYC 1343-1855-1  

E-Print Network (OSTI)

We observed a stellar occultation by Titan on 2003 November 14 from La Palma Observatory using ULTRACAM with three Sloan filters: u', g', and i' (358, 487, and 758 nm, respectively). The occultation probed latitudes 2°S ...

Zalucha, Angela M. (Angela Marie)

2007-01-01T23:59:59.000Z

134

TITAN code development for application to a PWR steam line break accident : final report 1983-1984  

E-Print Network (OSTI)

Modification of the TITAN computer code which enables it to be applied to a PWR steam line break accident has been accomplished. The code now has the capability of simulating an asymmetric inlet coolant temperature transient ...

Tsai, Chon-Kwo

1984-01-01T23:59:59.000Z

135

IMPACT OF URANIUM AND THORIUM ON HIGH TIO2 CONCENTRATION NUCLEAR WASTE GLASSES  

Science Conference Proceedings (OSTI)

This study focused on the potential 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. All but one of the study glasses were found to be amorphous by X-ray diffraction (XRD). One of the slowly cooled glasses contained a small amount of trevorite, which is typically found in DWPF-type glasses and had no practical impact on the durability of the glass. The measured Product Consistency Test (PCT) responses for the study glasses and the viscosities of the glasses were well predicted by the current DWPF models. No unexpected issues were encountered when uranium and thorium were added to the glasses with SCIX components.

Fox, K.; Edwards, T.

2012-01-11T23:59:59.000Z

136

EVALUATION OF ALTERNATIVE FILTER MEDIA FOR THE ROTARY MICROFILTER, PHASE 2  

SciTech Connect

Testing was conducted at the Savannah River National Laboratory (SRNL) to investigate filter membrane performance in an effort to increase rotary microfilter (RMF) throughput. Membranes were tested in the SpinTek Filtration, Inc. Static Test Cell (STC), which permitted quick and easy testing of several different membranes. Testing consisted of 100 hours tests with two different slurry feeds, based on recommendations from the phase 1 testing. One feed contained Monosodium Titanate (MST) solids in a simulated salt solution. The other feed contained simulated sludge batch 6 (SB6) solids in a simulated salt solution. Five membranes were tested, one each from filter manufactures Pall and Porvair and three from the Oak Ridge National Laboratory (ORNL). The membrane from Pall is the current membrane used on the latest generation RMF. The Porvair membrane performed well in previous STC tests as well as one of the ORNL membranes. The other two membranes from ORNL were recently developed and not available for the previous STC test. The results indicate that the Porvair filter performed best with the MST slurry and the ORNL SVB6-1B filter performed best with the SB6 slurry. Difficulty was encountered with the ORNL filters due to their dimensional thickness, which was greater than the recommended filter thickness for the STC. The STC equipment was modified to complete the testing of the ORNL filters.

Fowley, M.

2012-07-31T23:59:59.000Z

137

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

NLE Websites -- All DOE Office Websites (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.

138

David Teter, MST Deputy Division Leader, MST: Los Alamos National...  

NLE Websites -- All DOE Office Websites (Extended Search)

storage, hydrogen-induced phase changes, solid-state phase transformations, and aging phenomena of weapons materials. In 2002, Dr. Teter began developing his leadership...

139

MST: Organizations: Bio: Mike Kelly  

NLE Websites -- All DOE Office Websites (Extended Search)

Paul C. McKey Paul McKey Paul is the manager of the Meso Manufacturing & Systems Development organization at Sandia National Laboratories. His organization, and his sister...

140

MST: Organizations: Bio: Mike Kelly  

NLE Websites -- All DOE Office Websites (Extended Search)

Mike Kelly Mike is the manager of the Organic Materials Department in the Manufacturing Science and Technology Center at Sandia National Laboratories. This department provides...

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141

MST: Organizations: Precision Meso Manufacturing  

NLE Websites -- All DOE Office Websites (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

142

MST: Organizations: Manufacturing Processes & Services  

NLE Websites -- All DOE Office Websites (Extended Search)

and mechanical liaison group works with inside shops and over 2000 outside suppliers. Welding, Fabrication, & Assembly Onsite or remote welding, assembly and repair Precision...

143

MST: Organizations: Bio: Alex Rosler  

NLE Websites -- All DOE Office Websites (Extended Search)

Alex Roesler Alex Roesler Alex is the manager of the Ceramic and Glass organization at Sandia National Laboratories. His organization provides expertise in a variety of materials...

144

MST: Organizations: Ceramic and Glass  

NLE Websites -- All DOE Office Websites (Extended Search)

formation and machining, to complete component fabrication and testing. Our Mission Our ceramic, glass, and glass-ceramic products meet customer needs in defense, energy,...

145

Workshops: MS&T '04  

Science Conference Proceedings (OSTI)

Sep 26, 2004 ... Office of Legislative and Public Affairs National Science Foundation Ms. Hanson has worked in the media and public affairs business for more ...

146

MST: Organizations: Bio: Dianna Blair  

NLE Websites -- All DOE Office Websites (Extended Search)

Machining Services Electronic Fabrication Manufacturing Process Science & Technology Thin Film, Vacuum, & Packaging Organic Materials Ceramic & Glass Meso Manufacturing &...

147

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

148

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

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

149

Global circulation as the main source of cloud activity on Titan  

E-Print Network (OSTI)

Clouds on Titan result from the condensation of methane and ethane and, as on other planets, are primarily structured by circulation of the atmosphere. At present, cloud activity mainly occurs in the southern (summer) hemisphere, arising near the pole and at mid-latitudes from cumulus updrafts triggered by surface heating and/or local methane sources, and at the north (winter) pole, resulting from the subsidence and condensation of ethane-rich air into the colder troposphere. General circulation models predict that this distribution should change with the seasons on a 15-year timescale, and that clouds should develop under certain circumstances at temperate latitudes (~40\\degree) in the winter hemisphere. The models, however, have hitherto been poorly constrained and their long-term predictions have not yet been observationally verified. Here we report that the global spatial cloud coverage on Titan is in general agreement with the models, confirming that cloud activity is mainly controlled by the global circ...

Rodriguez, Sébastien; Rannou, Pascal; Tobie, Gabriel; Baines, Kevin H; Barnes, Jason W; Griffith, Caitlin A; Hirtzig, Mathieu; Pitman, Karly M; Sotin, Christophe; Brown, Robert H; Buratti, Bonnie J; Clark, Roger N; Nicholson, Phil D; 10.1038/NATURE08014

2009-01-01T23:59:59.000Z

150

Composite solid oxide fuel cell anode based on ceria and strontium titanate  

DOE Patents (OSTI)

An anode and method of making the same wherein the anode consists of two separate phases, one consisting of a doped strontium titanate phase and one consisting of a doped cerium oxide phase. The strontium titanate phase consists of Sr.sub.1-xM.sub.xTiO.sub.3-.delta., where M is either yttrium (Y), scandium (Sc), or lanthanum (La), where "x" may vary typically from about 0.01 to about 0.5, and where .delta. is indicative of some degree of oxygen non-stoichiometry. A small quantity of cerium may also substitute for titanium in the strontium titanate lattice. The cerium oxide consists of N.sub.yCe.sub.1-yO.sub.2-.delta., where N is either niobium (Nb), vanadium (V), antimony (Sb) or tantalum (Ta) and where "y" may vary typically from about 0.001 to about 0.1 and wherein the ratio of Ti in said first phase to the sum of Ce and N in the second phase is between about 0.2 to about 0.75. Small quantities of strontium, yttrium, and/or lanthanum may additionally substitute into the cerium oxide lattice. The combination of these two phases results in better performance than either phase used separately as an anode for solid oxide fuel cell or other electrochemical device.

Marina, Olga A. (Richland, WA); Pederson, Larry R. (Richland, WA)

2008-12-23T23:59:59.000Z

151

A spherical Monte-Carlo model of aerosols: Validation and first applications to Mars and Titan  

E-Print Network (OSTI)

The atmospheres of Mars and Titan are loaded with aerosols that impact remote sensing observations of their surface. Here we present the algorithm and the first applications of a radiative transfer model in spherical geometry designed for planetary data analysis. We first describe a fast Monte-Carlo code that takes advantage of symmetries and geometric redundancies. We then apply this model to observations of the surface of Mars and Titan at the terminator as acquired by OMEGA/Mars Express and VIMS/Cassini. These observations are used to probe the vertical distribution of aerosols down to the surface. On Mars, we find the scale height of dust particles to vary between 6 km and 12 km depending on season. Temporal variations in the vertical size distribution of aerosols are also highlighted. On Titan, an aerosols scale height of 80 \\pm 10 km is inferred, and the total optical depth is found to decrease with wavelength as a power-law with an exponent of -2.0 \\pm 0.4 from a value of 2.3 \\pm 0.5 at 1.08 {\\mu}m. On...

Vincendon, Mathieu; 10.1016/j.icarus.2009.12.018

2011-01-01T23:59:59.000Z

152

THE ROLE OF METHANOL IN THE CRYSTALLIZATION OF TITAN'S PRIMORDIAL OCEAN  

SciTech Connect

A key parameter that controls the crystallization of primordial oceans in large icy moons is the presence of anti-freeze compounds, which may have maintained primordial oceans over the age of the solar system. Here we investigate the influence of methanol, a possible anti-freeze candidate, on the crystallization of Titan's primordial ocean. Using a thermodynamic model of the solar nebula and assuming a plausible composition of its initial gas phase, we first calculate the condensation sequence of ices in Saturn's feeding zone, and show that in Titan's building blocks methanol can have a mass fraction of {approx}4 wt% relative to water, i.e., methanol can be up to four times more abundant than ammonia. We then combine available data on the phase diagram of the water-methanol system and scaling laws derived from thermal convection to estimate the influence of methanol on the dynamics of the outer ice I shell and on the heat transfer through this layer. For a fraction of methanol consistent with the building blocks composition we determined, the vigor of convection in the ice I shell is strongly reduced. The effect of 5 wt% methanol is equivalent to that of 3 wt% ammonia. Thus, if methanol is present in the primordial ocean of Titan, the crystallization may stop, and a sub-surface ocean may be maintained between the ice I and high-pressure ice layers. A preliminary estimate indicates that the presence of 4 wt% methanol and 1 wt% ammonia may result in an ocean of thickness at least 90 km.

Deschamps, Frederic [Institute of Geophysics, Swiss Federal Institute of Technology Zurich, 8092 Zurich (Switzerland); Mousis, Olivier [Universite de Franche-Comte, Institut UTINAM, CNRS/INSU, UMR 6213, 25030 Besancon Cedex (France); Sanchez-Valle, Carmen [Institute of Geochemistry and Petrology, Swiss Federal Institute of Technology Zurich, 8092 Zurich (Switzerland); Lunine, Jonathan I., E-mail: frederic.deschamps@erdw.ethz.c [Dipartimento di Fisica, Universita degli Studi di Roma 'Tor Vergata', Rome (Italy)

2010-12-01T23:59:59.000Z

153

ULTRASONIC MEASUREMENT OF POLARIZATION SWITCHING PROCESSES IN BARIUM- TITANATE SINGLE CRYSTAL  

SciTech Connect

A prevlously developed nondestructive piezoelectric method for studying the state of polarization of ferroelectric crystals is applied to study polarization switching in barium titanate single crystals. Three polarization processes are proposed. The first and second processes were designated nucleation and growth by Merz. The third process cannot be measured by conventional pulse methods, and hss a very slow polarizing velocity. Thls indicates the existence of layers which lie between the surface layer and inner layer. Switching time results ars considered in the light of the above experiments. (auth)

Husimi, K.; Kataoka, K.

1958-08-01T23:59:59.000Z

154

Study of the structure of ferroelectric domain walls in barium titanate ceramics  

Science Conference Proceedings (OSTI)

Structure of 90{degree} ferroelectric domain boundaries in barium titanate ceramics has been studied by means of Transmission Electron Microscopy and High Resolution TEM. Tilts of specific fringes across domain walls are measured on HREM images and Selected Area Diffraction Patterns. They are in a good agreement with the twin model admitted for these domain boundaries. A computerized method has been developed to give access to quantitative information about atomic displacements across these ferroelectric domain walls. The so calculated displacement field is then compared with Landau-Ginzburg based theoretical predictions.

Normand, L.; Thorel, A. [Centre des Materiaux, Evry cedex (France) ; Kilaas, R. [Lawrence Berkeley Lab., CA (United States); Montardi, Y. [Rhone-Poulenc, CRA, Aubervilliers (France)

1995-02-01T23:59:59.000Z

155

TITAN's Digital RFQ Ion Beam Cooler and Buncher, Operation and Performance  

E-Print Network (OSTI)

We present a description of the Radio Frequency Quadrupole (RFQ) ion trap built as part of the TITAN facility. It consists of a gas-filled, segmented, linear Paul trap and is the first stage of the TITAN setup with the purpose of cooling and bunching radioactive ion beams delivered from ISAC-TRIUMF. This is the first such device to be driven digitally, i.e., using a high voltage ($V_{pp} = \\rm{400 \\, V}$), wide bandwidth ($0.2 < f < 1.2 \\, \\rm{MHz}$) square-wave as compared to the typical sinusoidal wave form. Results from the commissioning of the device as well as systematic studies with stable and radioactive ions are presented including efficiency measurements with stable $^{133}$Cs and radioactive $^{124, 126}$Cs. A novel and unique mode of operation of this device is also demonstrated where the cooled ion bunches are extracted in reverse mode, i.e., in the same direction as previously injected.

T. Brunner; M. J. Smith; M. Brodeur; S. Ettenauer; A. T. Gallant; V. V. Simon; A. Chaudhuri A. Lapierre; E. Mané; R. Ringle; M. C. Simon; J. A. Vaz; P. Delheij; M. Good; M. R. Pearson; J. Dilling

2011-07-12T23:59:59.000Z

156

Sulfidation and reduction of zinc titanate and zinc oxide sorbents for injection in gasifier exit ducts  

DOE Green Energy (OSTI)

The sulfidation reaction kinetics of fine particles of zinc titanate and zinc oxide with H{sub 2}S were studied in order to test the potential of the sorbent injection hot-gas desulfurization process. Fine sorbent particles with diameter between 0.3 and 60 {mu}m were sulfided with H{sub 2}S and/or reduced with H{sub 2} in a laminar flow reactor over the temperature range of 500-900{degrees}C. Sulfidation/reduction conversion was compared for different particle sizes and sorbents with various porosities and atomic ratios of Zn and Ti. In reduction of ZnO with H{sub 2} and without H{sub 2}S, significant amount of Zn was formed and vaporized, while the presence of H{sub 2}S suppressed elemental Zn formation. This suggests that H{sub 2}S may suppress the surface reduction of ZnO and/or gaseous Zn may react with H{sub 2}S homogeneously and form fine particles of ZnS. Formation and vaporization of elemental Zn from zinc titanate sorbents was slower than from zinc oxide with and without H{sub 2}S.

Ishikawa, K. [Tufts Univ., Medford, MA (United States). Dept. of Chemical Engineering]|[Kawasaki Heavy Industries Ltd., Akashi, Hyogo (Japan). Technical Inst.; Krueger, C.; Flytzani-Stephanopoulos, M. [Tufts Univ., Medford, MA (United States). Dept. of Chemical Engineering; Jl, W.; Higgins, R.J.; Bishop, B.A.; Goldsmith, R.L. [CeraMem Corp., Waltham, MA (United States)

1995-12-31T23:59:59.000Z

157

EXAFS and XANES analysis of plutonium and cerium edges from titanate ceramics for fissile materials disposal.  

Science Conference Proceedings (OSTI)

We report x-ray absorption near edge structure (XANES) and extended x-ray absorption fine structure (EXAFS) spectra from the plutonium L{sub III} edge and XANES from the cerium L{sub II} edge in prototype titanate ceramic hosts. The titanate ceramics studied are based upon the hafnium-pyrochlore and zirconolite mineral structures and will serve as an immobilization host for surplus fissile materials, containing as much as 10 weight % fissile plutonium and 20 weight % (natural or depleted) uranium. Three ceramic formulations were studied: one employed cerium as a ''surrogate'' element, replacing both plutonium and uranium in the ceramic matrix, another formulation contained plutonium in a ''baseline'' ceramic formulation, and a third contained plutonium in a formulation representing a high-impurity plutonium stream. The cerium XANES from the surrogate ceramic clearly indicates a mixed III-IV oxidation state for the cerium. In contrast, XANES analysis of the two plutonium-bearing ceramics shows that the plutonium is present almost entirely as Pu(IV) and occupies the calcium site in the zirconolite and pyrochlore phases. The plutonium EXAFS real-space structure shows a strong second-shell peak, clearly distinct from that of PuO{sub 2}, with remarkably little difference in the plutonium crystal chemistry indicated between the baseline and high-impurity formulations.

Fortner, J. A.; Kropf, A. J.; Bakel, A. J.; Hash, M. C.; Aase, S. B.; Buck, E. C.; Chamerlain, D. B.

1999-11-16T23:59:59.000Z

158

Facile fabrication of sodium Titanate nanostructures using metatitanic acid (TiO2 ? H2O) and its adsorption property  

Science Conference Proceedings (OSTI)

Fluffy sodium titanate nanostructures have been fabricated by a simple hydrothermal method with metatitanic acid as precursor. The obtained nanostructures exhibit as the aggregation of nanosheets, and the surface area of the nanostructure is about 110.59m2/g. ...

Gang Li; Lide Zhang; Ming Fang

2012-01-01T23:59:59.000Z

159

Final Report: Deconvolution of Adaptive Optics Images of Titan, Neptune, and Uranus  

SciTech Connect

This project involved images of Titan, Neptune, and Uranus obtained using the 10-meter W.M. Keck II Telescope and its adaptive optics system. An adaptive optics system corrects for turbulence in the Earth's atmosphere by sampling the wavefront and applying a correction based on the distortion measured for a known source within the same isoplanatic patch as the science target (for example, a point source such as a star). Adaptive optics can achieve a 10-fold increase in resolution over that obtained by images without adaptive optics (for example, Saturn's largest moon Titan is unresolved without adaptive optics but at least 10 resolution elements can be obtained across the disk in Keck adaptive optics images). The adaptive optics correction for atmospheric turbulence is not perfect; a point source is converted to a diffraction-limited core surrounded by a ''halo''. This halo is roughly the size and shape of the uncorrected point spread function one would observe without adaptive optics. In order to enhance the sharpness of the Keck images it is necessary to apply a deconvolution algorithm to the data. Many such deconvolution algorithms exist such as maximum likelihood and maximum entropy. These algorithms suffer to various degrees from noise amplification and creation of artifacts near sharp edges (''ringing''). In order to deconvolve the Keck images I have applied an algorithm specifically developed for observations of planetary bodies, the myopic deconvolution algorithm MISTRAL (''Myopic Iterative STep-preserving Restoration ALgorithm'') (Conan et al. 1998, 2000). MISTRAL was developed by ONERA (Office National d'Etudes et de Recherches Aerospatiales) and has been extensively tested on simulated and real AO observations, including observations of Titan (Coustenis et al.2001), Io (Marchis et al.2002, 2001), and asteroids (Hestroffer et al.2001, Rosenberg et al.2001, Makhoul et al.2001). Compared to more classical methods, MISTRAL avoids noise amplification and ringing artifacts, and better restores the initial photometry (Conan et al.1998). MISTRAL uses a stochastic approach to finding the best image reconstruction, using information about the object and the PSF. The general conclusions from this deconvolution effort is that MISTRAL does an excellent job of enhancing the sharpness of the data and preserving the photometry. The continued use of this algorithm for deconvolution of adaptive optics data is strongly suggested.

Gibbard, S; Marchis, F

2002-12-20T23:59:59.000Z

160

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

NLE Websites -- All DOE Office Websites (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

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.


161

Pressure-temperature phase diagram for a tin modified lead zirconate titanate ceramic.  

Science Conference Proceedings (OSTI)

Structural phase transformations between ferroelectric (FE), antiferroelectric (AFE), and paraelectric (FE) phases are frequently observed in the zirconia-rich phase region on the lead zirconate-titanate (PZT) phase diagram. Since the free energy difference among these phases is small, phase transformation can be easily induced by temperature, pressure and electric field. These induced transformation characteristics have been used for many practical applications. This study focuses on a hydrostatic pressure induced FE-to-AFE phase transformation in a tin modified PZT ceramic (PSZT). The relative phase stability between FE and AFE phases is determined by the dielectric permittivity measurement as a function of temperature from -60 C to 125 C. A pressure-temperature phase diagram for the PSZT system will be presented.

Grubbs, Robert K.; DiAntonio, Christopher Brian; Yang, Pin; Roesler, Alexander William; Montgomery, Stephen Tedford; Moore, Roger Howard

2010-06-01T23:59:59.000Z

162

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

DOE Green Energy (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

163

Characterization of thick lead zirconate titanate films fabricated using a new sol gel based process  

Science Conference Proceedings (OSTI)

Lead zirconate titanate (PZT) films 60 {mu}m in thickness have been fabricated using a new sol gel based process. PZT powders are dispersed in a sol gel matrix to form a 0{endash}3 ceramic/ceramic composite. The dielectric properties of these films have been studied as a function of powder concentration, frequency, and temperature. The characteristic Curie point is observed at 420{degree}C. The ferroelectric behavior measured in terms of the remanant polarization (P{sub r}=35 {mu}C/cm{sup 2}) and coercive field (E{sub c}=20 kV/cm) was an improvement over values quoted for thin PZT films but lower than that of bulk ceramic. The piezoelectric properties d{sub 33} (325 pC/N) and d{sub 31} ({minus}80 pC/N) were comparable with those of the bulk ceramic. {copyright} {ital 1997 American Institute of Physics.}

Barrow, D.A. [Datec Coating Corporation, Stirling Hall, 99 University Avenue, Kingston, Ontario K7L 3N6 (Canada); Petroff, T.E. [Datec Coating Corporation, Stirling Hall, 99 University Avenue, Kingston, Ontario K7L 3N6 (Canada)]|[Department of Chemistry, Queen`s University, Kingston, Ontario KL7 3NG (Canada); Tandon, R.P. [National Physical Laboratory, New Delhi (India); Sayer, M. [Department of Physics, Queen`s University, Kingston, Ontario K7L 3N6 (Canada)

1997-01-01T23:59:59.000Z

164

Substrate Clamping Effects on Irreversible Domain Wall Dynamics in Lead Zirconate Titanate Thin Films  

Science Conference Proceedings (OSTI)

The role of long-range strain interactions on domain wall dynamics is explored through macroscopic and local measurements of nonlinear behavior in mechanically clamped and released polycrystalline lead zirconate-titanate (PZT) films. Released films show a dramatic change in the global dielectric nonlinearity and its frequency dependence as a function of mechanical clamping. Furthermore, we observe a transition from strong clustering of the nonlinear response for the clamped case to almost uniform nonlinearity for the released film. This behavior is ascribed to increased mobility of domain walls. These results suggest the dominant role of collective strain interactions mediated by the local and global mechanical boundary conditions on the domain wall dynamics. The work presented in this Letter demonstrates that measurements on clamped films may considerably underestimate the piezoelectric coefficients and coupling constants of released structures used in microelectromechanical systems, energy harvesting systems, and microrobots.

Griggio, Flavio [ORNL; Jesse, Stephen [ORNL; Kumar, Amit [ORNL; Ovchinnikov, Oleg S [ORNL; Kim, H. [Pennsylvania State University, University Park, PA; Jackson, T. N. [Pennsylvania State University, University Park, PA; Damjanovic, Dragan [ORNL; Kalinin, Sergei V [ORNL; Trolier-Mckinstry, Susan E [ORNL

2012-01-01T23:59:59.000Z

165

SCIX IMPACT ON DWPF CPC  

Science Conference Proceedings (OSTI)

A program was conducted to systematically evaluate potential impacts of the proposed Small Column Ion Exchange (SCIX) process on the Defense Waste Processing Facility (DWPF) Chemical Processing Cell (CPC). The program involved a series of interrelated tasks. Past studies of the impact of crystalline silicotitanate (CST) and monosodium titanate (MST) on DWPF were reviewed. Paper studies and material balance calculations were used to establish reasonable bounding levels of CST and MST in sludge. Following the paper studies, Sludge Batch 10 (SB10) simulant was modified to have both bounding and intermediate levels of MST and ground CST. The SCIX flow sheet includes grinding of the CST which is larger than DWPF frit when not ground. Nominal ground CST was not yet available, therefore a similar CST ground previously in Savannah River National Laboratory (SRNL) was used. It was believed that this CST was over ground and that it would bound the impact of nominal CST on sludge slurry properties. Lab-scale simulations of the DWPF CPC were conducted using SB10 simulants with no, intermediate, and bounding levels of CST and MST. Tests included both the Sludge Receipt and Adjustment Tank (SRAT) and Slurry Mix Evaporator (SME) cycles. Simulations were performed at high and low acid stoichiometry. A demonstration of the extended CPC flowsheet was made that included streams from the site interim salt processing operations. A simulation using irradiated CST and MST was also completed. An extensive set of rheological measurements was made to search for potential adverse consequences of CST and MST and slurry rheology in the CPC. The SCIX CPC impact program was conducted in parallel with a program to evaluate the impact of SCIX on the final DWPF glass waste form and on the DWPF melter throughput. The studies must be considered together when evaluating the full impact of SCIX on DWPF. Due to the fact that the alternant flowsheet for DWPF has not been selected, this study did not consider the impact of proposed future alternative DWPF CPC flowsheets. The impact of the SCIX streams on DWPF processing using the selected flowsheet need to be considered as part of the technical baseline studies for coupled processing with the selected flowsheet. In addition, the downstream impact of aluminum dissolution on waste containing CST and MST has not yet been evaluated. The current baseline would not subject CST to the aluminum dissolution process and technical concerns with performing the dissolution with CST have been expressed. Should this option become feasible, the downstream impact should be considered. The main area of concern for DWPF from aluminum dissolution is an impact on rheology. The SCIX project is planning for SRNL to complete MST, CST, and sludge rheology testing to evaluate any expected changes. The impact of ground CST transport and flush water on the DWPF CPC feed tank (and potential need for decanting) has not been defined or studied.

Koopman, D.

2011-07-14T23:59:59.000Z

166

LABORATORY STUDIES ON THE IRRADIATION OF SOLID ETHANE ANALOG ICES AND IMPLICATIONS TO TITAN'S CHEMISTRY  

SciTech Connect

Pure ethane ices (C{sub 2}H{sub 6}) were irradiated at 10, 30, and 50 K under contamination-free, ultrahigh vacuum conditions with energetic electrons generated in the track of galactic cosmic-ray (GCR) particles to simulate the interaction of GCRs with ethane ices in the outer solar system. The chemical processing of the samples was monitored by a Fourier transform infrared spectrometer and a quadrupole mass spectrometer during the irradiation phase and subsequent warm-up phases on line and in situ in order to extract qualitative (products) and quantitative (rate constants and yields) information on the newly synthesized molecules. Six hydrocarbons, methane (CH{sub 4}), acetylene (C{sub 2}H{sub 2}), ethylene (C{sub 2}H{sub 4}), and the ethyl radical (C{sub 2}H{sub 5}), together with n-butane (C{sub 4}H{sub 10}) and butene (C{sub 4}H{sub 8}), were found to form at the radiation dose reaching 1.4 eV per molecule. The column densities of these species were quantified in the irradiated ices at each temperature, permitting us to elucidate the temperature and phase-dependent production rates of individual molecules. A kinetic reaction scheme was developed to fit column densities of those species produced during irradiation of amorphous/crystalline ethane held at 10, 30, or 50 K. In general, the yield of the newly formed molecules dropped consistently for all species as the temperature was raised from 10 K to 50 K. Second, the yield in the amorphous samples was found to be systematically higher than in the crystalline samples at constant temperature. A closer look at the branching ratios indicates that ethane decomposes predominantly to ethylene and molecular hydrogen, which may compete with the formation of n-butane inside the ethane matrix. Among the higher molecular products, n-butane dominates. Of particular relevance to the atmosphere of Saturn's moon Titan is the radiation-induced methane production from ethane-an alternative source of replenishing methane into the atmosphere. Finally, we discuss to what extent the n-butane could be the source of ''higher organics'' on Titan's surface thus resembling a crucial sink of condensed ethane molecules.

Kim, Y. S.; Bennett, C. J.; Chen, L-H; Kaiser, R. I. [Department of Chemistry, University of Hawaii at Manoa, Honolulu, HI 96822 (United States); O'Brien, K. [Department of Physics and Astronomy, Northern Arizona University, Flagstaff, AZ 86011 (United States)

2010-03-10T23:59:59.000Z

167

 

NLE Websites -- All DOE Office Websites (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

168

IMPACT OF THE SMALL COLUMN ION EXCHANGE PROCESS ON THE DEFENSE WASTE PROCESSING FACILITY - 12112  

SciTech Connect

The Savannah River Site (SRS) is investigating the deployment of a parallel technology to the Salt Waste Processing Facility (SWPF, presently under construction) to accelerate high activity salt waste processing. The proposed technology combines large waste tank strikes of monosodium titanate (MST) to sorb strontium and actinides with two ion exchange columns packed with crystalline silicotitanate (CST) resin to sorb cesium. The new process was designated Small Column Ion Exchange (SCIX), since the ion exchange columns were sized to fit within a waste storage tank riser. Loaded resins are to be combined with high activity sludge waste and fed to the Defense Waste Processing Facility (DWPF) for incorporation into the current glass waste form. Decontaminated salt solution produced by SCIX will be fed to the SRS Saltstone Facility for on-site immobilization as a grout waste form. Determining the potential impact of SCIX resins on DWPF processing was the basis for this study. Accelerated salt waste treatment is projected to produce a significant savings in the overall life cycle cost of waste treatment at SRS.

Koopman, D.; Lambert, D.; Fox, K.; Stone, M.

2011-11-07T23:59:59.000Z

169

 

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

170

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

Science Conference Proceedings (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

171

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION: KT01, KT02, KT03, AND KT04-SERIES GLASS COMPOSITIONS  

SciTech Connect

Four series of glass compositions were selected, fabricated, and characterized as part of a study to determine 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. The KT01 and KT02-series of glasses were chosen to allow for the identification of the influence of the concentrations of major components of the glass on the retention of TiO{sub 2}. The KT03 series of glasses was chosen to allow for the identification of these influences when higher Nb{sub 2}O{sub 5} and ZrO{sub 2} concentrations are included along with TiO2. The KT04 series of glasses was chosen to investigate the properties and performance of glasses based on the best available projections of actual compositions to be processed at the DWPF (i.e., future sludge batches including the SCIX streams).

Fox, K.; Edwards, T.

2010-11-01T23:59:59.000Z

172

Neutron irradiation effects on domain wall mobility and reversibility in lead zirconate titanate thin films  

SciTech Connect

The effects of neutron-induced damage on the ferroelectric properties of thin film lead zirconate titanate (PZT) were investigated. Two sets of PbZr{sub 0.52}Ti{sub 0.48}O{sub 3} films of varying initial quality were irradiated in a research nuclear reactor up to a maximum 1 MeV equivalent neutron fluence of (5.16 {+-} 0.03) Multiplication-Sign 10{sup 15} cm{sup -2}. Changes in domain wall mobility and reversibility were characterized by polarization-electric field measurements, Rayleigh analysis, and analysis of first order reversal curves (FORC). With increasing fluence, extrinsic contributions to the small-signal permittivity diminished. Additionally, redistribution of irreversible hysterons towards higher coercive fields was observed accompanied by the formation of a secondary hysteron peak following exposure to high fluence levels. The changes are attributed to the radiation-induced formation of defect dipoles and other charged defects, which serve as effective domain wall pinning sites. Differences in damage accumulation rates with initial film quality were observed between the film sets suggesting a dominance of pre-irradiation microstructure on changes in macroscopic switching behavior.

Graham, Joseph T. [Nuclear Engineering Teaching Laboratory, University of Texas at Austin, Austin, Texas 78758 (United States); Electronic, Optic and Nano Materials Department, Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); Brennecka, Geoff L.; Ihlefeld, Jon F. [Electronic, Optic and Nano Materials Department, Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); Ferreira, Paulo [Materials Science and Engineering Program, University of Texas at Austin, Austin, Texas 78751 (United States); Small, Leo [Electronic, Optic and Nano Materials Department, Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); Duquette, David [Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180 (United States); Apblett, Christopher [Advanced Power Sources R and D Department, Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States); Landsberger, Sheldon [Nuclear Engineering Teaching Laboratory, University of Texas at Austin, Austin, Texas 78758 (United States)

2013-03-28T23:59:59.000Z

173

Polaron Absorption for Photovoltaic Energy Conversion in a Manganite-titanate pn Heterojunction  

Science Conference Proceedings (OSTI)

The relation among structure, electric transport, and photovoltaic effect is investigated for a pn heterojunction with strong correlation interactions. A perovskite interface is chosen as a model system consisting of the p-doped strongly correlated manganite Pr{sub 0.64}Ca{sub 0.36}MnO{sub 3} (PCMO) and the n-doped titanate SrTi{sub 1-y}Nb{sub y}O{sub 3} (y = 0.002 and 0.01). High-resolution electron microscopy and spectroscopy reveal a nearly dislocation-free, epitaxial interface and give insight into the local atomic and electronic structure. The presence of a photovoltaic effect under visible light at room temperature suggests the existence of mobile excited polarons within the band-gap-free PCMO absorber. The temperature-dependent rectifying current-voltage characteristics prove to be mainly determined by the presence of an interfacial energy spike in the conduction band and are affected by the colossal electroresistance effect. From the comparison of photocurrents and spatiotemporal distributions of photogenerated carriers (deduced from optical absorption spectroscopy), we discuss the range of the excited polaron diffusion length.

Saucke G.; Zhu Y.; Norpoth, J.; Jooss, C.; Su, D.

2012-04-20T23:59:59.000Z

174

Convergent-beam electron diffraction studies of domains in Rhombohedral phase of lead zirconate titanate ceramics  

SciTech Connect

Lead zirconate titanate Pb(Zr{sub x}Ti{sub 1-x})O{sub 3} (PZT) ceramics are ferroelectrics formed as solid solutions between PbTiO{sub 3} and PbZrO{sub 3}. Among the different phases in the ferroelectric state, the primary ones are the Ti{sup +} rich tetragonal (T) phase and the Zr{sup +4} rich rhombohedral (R) phase and the phase boundary between them (x {approx} 0.53). A net polarization for the piezoelectric activity is obtained under an applied field whereby the polarization vectors of individual grains reorient and this process is called poling. The boundary composition is of great technological importance owing to the high piezo eletric activity. It is suggested, that the excellent piezo electric property is due to the coexistence of both the T and R phases which favours easy poling. Domain types in the R phase of PZT ceramic have been identified using the CBED method. However, the fringe contrast at the domain boundaries indicate that the domain walls are inclined. The orientation relation of domain walls is being studied by conventional microscopy contrast and diffraction techniques. 4 refs., 4 figs.

Dass, M.L.A.; Thomas, G.

1987-07-01T23:59:59.000Z

175

Biaxial Flexural Strength of Poled Lead Zirconate Titanate under High Electric Field with Extended Field Range  

Science Conference Proceedings (OSTI)

In the present work, as-received poled lead zirconate titanate, or PZT 5A, was examined using ball-on-ring (BoR) mechanical testing coupled with an electric field. Electric fields in the range of 4Ec (Ec, coercive field) with controlled loading paths were applied, and mechanical tests at a substantial number of characteristic electric field levels were conducted. Commercial electronic liquid FC-40 was used to prevent the setup from dielectric breakdown under a high electric field. Weibull strength distribution was used to interpret the mechanical strength data. The data showed that the strength levels of the PZT-5A tested under OC (open circuit) in air and in FC-40 were almost the same. It was further revealed that , for the studied cases, the effect of loading history on the biaxial flexural strength of the PZT was significant in -Ec, but not in OC or zero field as well as 4Ec . An asymmetry V curve was observed for the characteristic strength-electric field graph, and the bottom of V curve was located near the negative coercive field. Microscopy analysis showed that surface-located volume-distributed flaws were the strength limiter and responsible for the failure of the tested PZT under electromechanical loadings.

Zhang, Kewei [ORNL; Zeng, Fan W [ORNL; Wang, Hong [ORNL; Lin, Hua-Tay [ORNL

2013-01-01T23:59:59.000Z

176

The 2003 Nov 14 occultation by Titan of TYC 1343-1865-1. II. Analysis of light curves  

E-Print Network (OSTI)

We observed a stellar occultation by Titan on 2003 November 14 from La Palma Observatory using ULTRACAM with three Sloan filters: u', g', and i' (358, 487, and 758 nm, respectively). The occultation probed latitudes 2 degrees S and 1 degrees N during immersion and emersion, respectively. A prominent central flash was present in only the i' filter, indicating wavelength-dependent atmospheric extinction. We inverted the light curves to obtain six lower-limit temperature profiles between 335 and 485 km (0.04 and 0.003 mb) altitude. The i' profiles agreed with the temperature measured by the Huygens Atmospheric Structure Instrument [Fulchignoni, M. et al., 2005. Nature 438, 785-791] above 415 km (0.01 mb). The profiles obtained from different wavelength filters systematically diverge as altitude decreases, which implies significant extinction in the light curves. Applying an extinction model [Elliot, J.L., Young, L.A., 1992. Astron. J. 103, 991-1015] gave the altitudes of line of sight optical depth equal to unity: 396 +/- 7 km and 401 +/- 20 km (u' immersion and emersion); 354 +/- 7 km and 387 +/- 7 km (g' immersion and emersion); and 336 +/- 5 km and 318 +/- 4 km (i' immersion and emersion). Further analysis showed that the optical depth follows a power law in wavelength with index 1.3 +/- 0.2. We present a new method for determining temperature from scintillation spikes in the occulting body's atmosphere. Temperatures derived with this method are equal to or warmer than those measured by the Huygens Atmospheric Structure Instrument. Using the highly structured, three-peaked central flash, we confirmed the shape of Titan's middle atmosphere using a model originally derived for a previous Titan occultation [Hubbard, W.B. et al., 1993. Astron. Astrophys. 269, 541-563].

A. Zalucha; A. Fitzsimmons; J. L. Elliot; J. Thomas-Osip; H. B. Hammel; V. S. Dhillon; T. R. Marsh; F. W. Taylor; P. G. J. Irwin

2007-12-05T23:59:59.000Z

177

MST: Organizations: Manufacturing Processes & Services  

NLE Websites -- All DOE Office Websites (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,

178

Technical Program: MS&T '03 - TMS  

Science Conference Proceedings (OSTI)

Nov 9, 2003... processing and properties, and a few chapters in the ASM Handbook, Vol. ... His research projects at PNNL have been both fundamental and ...

179

Exhibitor List: MS&T '03  

Science Conference Proceedings (OSTI)

Hyatt Regency Chicago, East Tower Exhibit Level. Hours. Sunday, November 9: 12:00PM – 6:00PM Monday, November 10: 9:30AM – 5:30PM Tuesday ...

180

Submitting Abstracts: MS&T '03 - TMS  

Science Conference Proceedings (OSTI)

All material is available in portable document format (.pdf), which is viewable and printable using the free ADOBE ACROBAT READER. Earlier versions of ...

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

MS&T '05 Technical Program  

Science Conference Proceedings (OSTI)

Program Organizers: B. Lynn Ferguson, Deformation Control. Technology, Inc. .... Session Chairs: Julie Schoenung, University of California, Davis;. Jean-Daniel ...

182

Special Events: MS&T '04  

Science Conference Proceedings (OSTI)

Materials Science & Technology 2004 ... Where Technology Meets the Future ... entitled: “The Changing Nuclear Landscape: New Threats, Different Challenges”

183

MS&T'12 Poster Session  

Science Conference Proceedings (OSTI)

Mar 15, 2012 ... G2: Synthesis and Characterization of Plasma Polymerized Thin Films Deposited From Benzene and Hexamethyldisiloxane Using (PECVD) ...

184

MS&T'13 Poster Session  

Science Conference Proceedings (OSTI)

Mar 15, 2013 ... Synthesis and Characterization of Plasma Polymerized Thin Films Deposited from Benzene and Hexamethyldisiloxane Using (PECVD) Method.

185

MS&T '04 Tour Information - TMS  

Science Conference Proceedings (OSTI)

A Ride on the Wild Side Date: Monday, September 27, 2004. Time: 8:00am-12: 00pm. Cost: $55.00. Located just twenty minutes from downtown New Orleans, ...

186

MST: Organizations: Thin Film, Vacuum, and Packaging  

NLE Websites -- All DOE Office Websites (Extended Search)

Processes & Services Electronic Fabrication Manufacturing Process Science & Technology Thin Film, Vacuum, & Packaging Organic Materials Ceramic & Glass Meso Manufacturing &...

187

Technical Program: MS&T '03 - TMS  

Science Conference Proceedings (OSTI)

CONTROL OF MELT-RELATED DEFECTS IN HIGH TEMPERATURE ALLOYS ... will solicit contributed papers on novel new instrumentation and techniques, ...

188

Technical Program: MS&T '04  

Science Conference Proceedings (OSTI)

... micro-manipulation technologies, and mechanical testing instrumentation provide ... Papers to be presented include mechanisms, detection, and control of  ...

189

Synthesis and Electric Field-Manipulation of High Aspect Ratio Barium Titanate  

E-Print Network (OSTI)

The objective of this thesis is to develop high dielectric constant nanoparticle dispersion for switchable aircraft antenna systems. Two steps were designed to achieve the objective. First, obtain high dielectric, high aspect ratio nanoparticles and disperse them in dielectric oil medium. Second, manipulate the particle-oil dispersion using an external alternating current (AC) electric field to increase the effective dielectric constant. In order to obtain high dielectric dispersions, different sizes and shapes of titanium dioxide (TiO2) and barium titanate (BaTiO3) nanoparticles were purchased and measured. However, after a number of experiments detailed in the thesis, it was found that none of the commercially available nanoparticles could satisfy our requirements for a minimum effective dielectric constant. Thus, to achieve the goals above, we synthesized high aspect ratio BaTiO3 nanowires with BaC2O4 and TiO2 powders as precursors using a molten salt method. The as-synthesized BaTiO3 nanowires were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS) mapping. The nanowires have a diameter ranging from 100 nm to 300 nm, and their lengths range from 1.5 micrometers to 5 micrometers. Mechanical stirring and bath sonication were used to obtain even colloidal dispersions. Different concentrations of BaTiO3 nanoparticles well dispersed in the oil medium were successfully manipulated using AC electric field. To monitor the change in microstructure of BaTiO3 nanoparticles, optical microscopy was used to observe the alignment of particles in the sample under the applied electric field. Various parameters including the magnitude, frequency, and duration of the electric field, and the concentration of BaTiO3 nanoparticles were investigated to achieve the optimal alignment of nanoparticles. The experimental results were validated by theoretical analysis using Maxwell-Garnett mixing rule. It was demonstrated that the effective dielectric constant of the colloidal dispersions would increase with the increase of the magnitude, frequency and duration of applied electric field. Synthesized BaTiO3 nanowire-based dispersions exhibit significant enhancement of the effective dielectric constant compared to other colloidal materials. The effective dielectric constant of 5 wt percent BaTiO3-oil dispersions could reach up to 10 when aligned at 1000 V/mm electric field at 1 kHz frequency for 1 hour.

Li, Junjia

2011-05-01T23:59:59.000Z

190

RHEOLOGY OF SETTLED SOLIDS IN THE SMALL COLUMN ION EXCHANGE PROCESS  

SciTech Connect

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

191

Grain growth kinetics and electrical properties of lanthanum modified lead zirconate titanate (9/65/35) based ferroelectric ceramics  

Science Conference Proceedings (OSTI)

The influence of the microstructural characteristics on the dielectric and electrical properties has been investigated for Nd{sup 3+} doped lanthanum modified lead zirconate titanate ferroelectric ceramics, obtained by the conventional solid-state reaction method, by taking into account different sintering conditions. The grain growth mechanism has been investigated and a cubic-type grain growth law was observed for samples with grain size varying from 1.00 up to 2.35 {mu}m. The porosity and grain size dependences of the phase transition parameters, such as the maximum dielectric permittivity and its corresponding temperature ({epsilon}{sub m} and T{sub m}, respectively) were also investigated. The ac conductivity analyses followed the universal Jonscher law. The behavior of the frequency exponent (s) was analyzed through the correlated barrier hopping model. Both ac and dc conductivity results have been correlated with the observed microstructural features.

Roca, R. Alvarez; Guerrero, F. [Departamento de Fisica, Grupo de Ceramicas Ferroeletricas, UFSCar, Rod. Washington Luis, Km 235, CEP 13565-905 Sao Carlos, Sao Paulo (Brazil); Departamento de Fisica, Facultad de Ciencias Naturales, Universidad de Oriente, 90500 Santiago de Cuba (Cuba); Botero, E. R.; Garcia, D.; Eiras, J. A. [Departamento de Fisica, Grupo de Ceramicas Ferroeletricas, UFSCar, Rod. Washington Luis, Km 235, CEP 13565-905 Sao Carlos, Sao Paulo (Brazil); Guerra, J. D. S. [Grupo de Ferroeletricos e Materiais Multifuncionais, Instituto de Fisica, Universidade Federal de Uberlandia, 38400-902 Uberlandia, Minas Gerais (Brazil)

2009-01-01T23:59:59.000Z

192

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

SciTech Connect

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

193

The 2003 Nov 14 occultation by Titan of TYC 1343-1865-1. II. Analysis of light curves  

E-Print Network (OSTI)

We observed a stellar occultation by Titan on 2003 November 14 from La Palma Observatory using ULTRACAM with three Sloan filters: u', g', and i' (358, 487, and 758 nm, respectively). The occultation probed latitudes 2 degrees S and 1 degrees N during immersion and emersion, respectively. A prominent central flash was present in only the i' filter, indicating wavelength-dependent atmospheric extinction. We inverted the light curves to obtain six lower-limit temperature profiles between 335 and 485 km (0.04 and 0.003 mb) altitude. The i' profiles agreed with the temperature measured by the Huygens Atmospheric Structure Instrument [Fulchignoni, M. et al., 2005. Nature 438, 785-791] above 415 km (0.01 mb). The profiles obtained from different wavelength filters systematically diverge as altitude decreases, which implies significant extinction in the light curves. Applying an extinction model [Elliot, J.L., Young, L.A., 1992. Astron. J. 103, 991-1015] gave the altitudes of line of sight optical depth equal to unit...

Zalucha, A; Elliot, J L; Thomas-Osip, J; Hammel, H B; Dhillon, V S; Marsh, T R; Taylor, F W; Irwin, P G J

2007-01-01T23:59:59.000Z

194

Fatigue and failure responses of lead zirconate titanate multilayer actuator under unipolar high-field electric cycling  

Science Conference Proceedings (OSTI)

Lead zirconate titanate (PZT) multilayer actuators with an interdigital electrode design were studied under high electric fields (3 and 6 kV/mm) in a unipolar cycling mode. A 100 Hz sine wave was used in cycling. Five specimens tested under 6 kV/mm failed from 3.8 10^5 to 7 10^5 cycles, whereas three other specimens tested under 3 kV/mm were found to be still functional after 10^8 cycles. Variations in piezoelectric and dielectric responses of the tested specimens were observed during the fatigue test, depending on the measuring and cycling conditions. Selected fatigued and damaged actuators were characterized using an impedance analyzer or small signal measurement. A scanning acoustic microscope also was employed as a nondestructive tool to detect the presence of defects. Failed plates were subsequently sectioned, and the extensive cracks and porous regions were observed to be across the PZT layers. The results from this study have demonstrated that the high-field cycling can accelerate the fatigue of PZT stacks as long as the partial discharge is controlled. The small signal measurement can also be integrated into the large signal measurement to characterize the fatigue response of PZT stacks in a more comprehensive basis. The former can further serve as an experimental method to monitor the behavior of PZT stacks.

Zeng, Fan W [ORNL; Wang, Hong [ORNL; Lin, Hua-Tay [ORNL

2013-01-01T23:59:59.000Z

195

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

SciTech Connect

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

196

ROTARY FILTER FINES TESTING FOR SMALL COLUMN ION EXCHANGE  

SciTech Connect

SRNL was requested to quantify the amount of 'fines passage' through the 0.5 micron membranes currently used for the rotary microfilter (RMF). Testing was also completed to determine if there is any additional benefit to utilizing a 0.1 micron filter to reduce the amount of fines that could pass through the filter. Quantifying of the amount of fines that passed through the two sets of membranes that were tested was accomplished by analyzing the filtrate by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) for titanium. Even with preparations to isolate the titanium, all samples returned results of less than the instrument's detection limit of 0.184 mg/L. Test results show that the 0.5 micron filters produced a significantly higher flux while showing a negligible difference in filtrate clarity measured by turbidity. The first targeted deployment of the RMF is with the Small Column Ion Exchange (SCIX) at the Savannah River Site (SRS). SCIX uses crystalline silicotitanate (CST) to sorb cesium to decontaminate a clarified salt solution. The passage of fine particles through the filter membranes in sufficient quantities has the potential to impact the downstream facilities. To determine the amount of fines passage, a contract was established with SpinTek Filtration to operate a 3-disk pilot scale unit with prototypic filter disk and various feeds and two different filter disk membranes. SpinTek evaluated a set of the baseline 0.5 micron filter disks as well as a set of 0.1 micron filter disks to determine the amount of fine particles that would pass the membrane and to determine the flux each set produced. The membrane on both disk sets is manufactured by the Pall Corporation (PMM 050). Each set of disks was run with three feed combinations: prototypically ground CST, CST plus monosodium titanate (MST), and CST, MST, plus Sludge Batch 6 (SB6) simulant. Throughout the testing, samples of the filtrate were collected, measured for turbidity, and sent back to SRNL for analysis to quantify the amount of fines that passed through the membrane. It should be noted that even though ground CST was tested, it will be transferred to the Defense Waste Processing Facility (DWPF) feed tank and is not expected to require filtration.

Herman, D.

2011-08-03T23:59:59.000Z

197

Small Column Ion Exchange Design and Safety Strategy  

SciTech Connect

Small Column Ion Exchange (SCIX) is a transformational technology originally developed by the Department of Energy (DOE) Environmental Management (EM-30) office and is now being deployed at the Savannah River Site (SRS) to significantly increase overall salt processing capacity and accelerate the Liquid Waste System life-cycle. The process combines strontium and actinide removal using Monosodium Titanate (MST), Rotary Microfiltration, and cesium removal using Crystalline Silicotitanate (CST, specifically UOP IONSIV{reg_sign}IE-911 ion exchanger) to create a low level waste stream to be disposed in grout and a high level waste stream to be vitrified. The process also includes preparation of the streams for disposal, e.g., grinding of the loaded CST material. These waste processing components are technically mature and flowsheet integration studies are being performed including glass formulations studies, application specific thermal modeling, and mixing studies. The deployment program includes design and fabrication of the Rotary Microfilter (RMF) assembly, ion-exchange columns (IXCs), and grinder module, utilizing an integrated system safety design approach. The design concept is to install the process inside an existing waste tank, Tank 41H. The process consists of a feed pump with a set of four RMFs, two IXCs, a media grinder, three Submersible Mixer Pumps (SMPs), and all supporting infrastructure including media receipt and preparation facilities. The design addresses MST mixing to achieve the required strontium and actinide removal and to prevent future retrieval problems. CST achieves very high cesium loadings (up to 1,100 curies per gallon (Ci/gal) bed volume). The design addresses the hazards associated with this material including heat management (in column and in-tank), as detailed in the thermal modeling. The CST must be size reduced for compatibility with downstream processes. The design addresses material transport into and out of the grinder and includes provisions for equipment maintenance including remote handling. The design includes a robust set of nuclear safety controls compliant with DOE Standard (STD)-1189, Integration of Safety into the Design Process. The controls cover explosions, spills, boiling, aerosolization, and criticality. Natural Phenomena Hazards (NPH) including seismic event, tornado/high wind, and wildland fire are considered. In addition, the SCIX process equipment was evaluated for impact to existing facility safety equipment including the waste tank itself. SCIX is an innovative program which leverages DOE's technology development capabilities to provide a basis for a successful field deployment.

Huff, T.; Rios-Armstrong, M.; Edwards, R.; Herman, D.

2011-02-07T23:59:59.000Z

198

Epitaxial strontium titanate films grown by atomic layer deposition on SrTiO{sub 3}-buffered Si(001) substrates  

SciTech Connect

Epitaxial strontium titanate (STO) films have been grown by atomic layer deposition (ALD) on Si(001) substrates with a thin STO buffer layer grown by molecular beam epitaxy (MBE). Four unit cells of STO grown by MBE serve as the surface template for ALD growth. The STO films grown by ALD are crystalline as-deposited with minimal, if any, amorphous SiO{sub x} layer at the STO-Si interface. The growth of STO was achieved using bis(triisopropylcyclopentadienyl)-strontium, titanium tetraisopropoxide, and water as the coreactants at a substrate temperature of 250 Degree-Sign C. In situ x-ray photoelectron spectroscopy (XPS) analysis revealed that the ALD process did not induce additional Si-O bonding at the STO-Si interface. Postdeposition XPS analysis also revealed sporadic carbon incorporation in the as-deposited films. However, annealing at a temperature of 250 Degree-Sign C for 30 min in moderate to high vacuum (10{sup -6}-10{sup -9} Torr) removed the carbon species. Higher annealing temperatures (>275 Degree-Sign C) gave rise to a small increase in Si-O bonding, as indicated by XPS, but no reduced Ti species were observed. X-ray diffraction revealed that the as-deposited STO films were c-axis oriented and fully crystalline. A rocking curve around the STO(002) reflection gave a full width at half maximum of 0.30 Degree-Sign {+-} 0.06 Degree-Sign for film thicknesses ranging from 5 to 25 nm. Cross-sectional transmission electron microscopy revealed that the STO films were continuous with conformal growth to the substrate and smooth interfaces between the ALD- and MBE-grown STO. Overall, the results indicate that thick, crystalline STO can be grown on Si(001) substrates by ALD with minimal formation of an amorphous SiO{sub x} layer using a four-unit-cell STO buffer layer grown by MBE to serve as the surface template.

McDaniel, Martin D.; Posadas, Agham; Ngo, Thong Q.; Dhamdhere, Ajit; Smith, David J.; Demkov, Alexander A.; Ekerdt, John G. [Department of Chemical Engineering, University of Texas at Austin, 1 University Station C0400, Austin, Texas 78712 (United States); Department of Physics, University of Texas at Austin, 1 University Station C1600, Austin, Texas 78712 (United States); Department of Chemical Engineering, University of Texas at Austin, 1 University Station C0400, Austin, Texas 78712 (United States); Department of Physics, Arizona State University, Tempe, Arizona 85287-1504 (United States); Department of Physics, University of Texas at Austin, 1 University Station C1600, Austin, Texas 78712 (United States); Department of Chemical Engineering, University of Texas at Austin, 1 University Station C0400, Austin, Texas 78712 (United States)

2013-01-15T23:59:59.000Z

199

DEMONSTRATION OF THE DWPF FLOWSHEET IN THE SRNL SHIELDED CELLS USING ARP PRODUCT SIMULANT AND SB4 TANK 40 SLUDGE SLURRY  

DOE Green Energy (OSTI)

The radioactive startup of two new SRS processing facilities, the Actinide Removal Process (ARP) and the Modular Caustic-Side-Solvent-Extraction Unit (MCU) will add two new waste streams to the Defense Waste Processing Facility (DWPF). The ARP will remove actinides from the 5.6 M salt solution resulting in a sludge-like product that is roughly half monosodium titanate (MST) insoluble solids and half sludge insoluble solids. The ARP product will be added to the Sludge Receipt and Adjustment Tank (SRAT) at boiling and dewatered prior to pulling a SRAT receipt sample. The cesium rich MCU stream will be added to the SRAT at boiling after both formic and nitric acid have been added and the SRAT contents concentrated to the appropriate endpoint. A concern was raised by an external hydrogen review panel that the actinide loaded MST could act as a catalyst for hydrogen generation (Mar 15, 2007 report, Recommendation 9). Hydrogen generation, and it's potential to form a flammable mixture in the off-gas, under SRAT and Slurry Mix Evaporator (SME) processing conditions has been a concern since the discovery that noble metals catalyze the decomposition of formic acid. Radiolysis of water also generates hydrogen, but the radiolysis rate is orders of magnitude lower than the noble metal catalyzed generation. As a result of the concern raised by the external hydrogen review panel, hydrogen generation was a prime consideration in this experiment. Testing was designed to determine whether the presence of the irradiated ARP simulant containing MST caused uncontrolled or unexpected hydrogen production during experiments simulating the DWPF Chemical Process Cell (CPC) due to activation of titanium. A Shielded Cells experiment, SC-5, was completed using SB4 sludge from Tank 405 combined with an ARP product produced from simulants by SRNL researchers. The blend of sludge and MST was designed to be prototypic of planned DWPF SRAT and SME cycles. As glass quality was not an objective in this experiment, no vitrification of the SME product was completed. The results from this experiment were compared to the results from experiment SC-1, a similar experiment with SB4 sludge without added ARP product. This report documents: (1) The preparation and subsequent composition of the ARP product. (2) The preparation and subsequent compositional characterization of the SRAT Receipt sample. Additional details will be presented concerning the noble metal concentration of the ARP product and the SRAT receipt sample. Also, calculations related to the amount of formic and nitric acid added during SRAT processing will be presented as excess formic acid will lead to additional hydrogen generation. (3) Highlights from processing during the SRAT cycle and SME cycle (CPC processing). Hydrogen generation will be discussed since this was the prime objective for this experiment. (4) A comparison of CPC processing between SC-1 (without ARP simulant) and SC-5. This work was controlled by a Task Technical and Quality Assurance Plan (TTQAP)6, and analyses were guided by an Analytical Sample Support Matrix (ASSM)7. This Research and Development (R&D) was completed to support operation of DWPF.

Lambert, D; John Pareizs, J; Bradley Pickenheim, B; Cj Bannochie, C; Michael Stone, M; Damon Click, D; Erich Hansen, E; Kim Crapse, K; David Hobbs, D

2008-05-14T23:59:59.000Z

200

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  

Science Conference Proceedings (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

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

THE {sup 12}C/{sup 13}C RATIO ON TITAN FROM CASSINI INMS MEASUREMENTS AND IMPLICATIONS FOR THE EVOLUTION OF METHANE  

SciTech Connect

We have re-evaluated the Cassini Ion Neutral Mass Spectrometer (INMS) {sup 12}C/{sup 13}C ratios in the upper atmosphere of Titan based on new calibration sensitivities and an improved model for the NH{sub 3} background in the {sup 13}CH{sub 4} mass channel. The INMS measurements extrapolated to the surface give a {sup 12}C/{sup 13}C in CH{sub 4} of 88.5 {+-} 1.4. We compare the results to a revised ratio of 91.1 {+-} 1.4 provided by the Huygens Gas Chromatograph Mass Spectrometer and 86.5 {+-} 7.9 provided by the Cassini Infrared Spectrometer and determine implications of the revised ratios for the evolution of methane in Titan's atmosphere. Because the measured {sup 12}C/{sup 13}C is within the probable range of primordial values, we can only determine an upper boundary for the length of time since methane began outgassing from the interior, assuming that outgassing of methane (e.g., cryovolcanic activity) has been continuous ever since. We find that three factors play a crucial role in this timescale: (1) the escape rate of methane, (2) the difference between the current and initial ratios and the rate of methane, and (3) production or resupply due to cryovolcanic activity. We estimate an upper limit for the outgassing timescale of 470 Myr. This duration can be extended to 940 Myr if production rates are large enough to counteract the fractionation due to escape and photochemistry. There is no lower limit to the timescale because the current ratios are within the range of possible primordial values.

Mandt, Kathleen E.; Waite, J. Hunter; Teolis, Benjamin; Magee, Brian A.; Bell, Jared [Space Science and Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78228 (United States); Westlake, Joseph H. [Applied Physics Laboratory, Johns Hopkins University, Laurel, MD (United States); Nixon, Conor A. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); Mousis, Olivier [Institut UTINAM, Universite de Franche-Comte, CNRS/INSU, UMR 6213, Observatoire des Sciences de l'Univers de Besancon (France); Lunine, Jonathan I. [Department of Astronomy, Cornell University, Ithaca, NY (United States)

2012-04-20T23:59:59.000Z

202

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

NLE Websites -- All DOE Office Websites (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).

203

MST eNews: Los Alamos National Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

materials From David's Desk Researchers demonstrate hot-pressing of LiTaO3 ferroelectic ceramic with high density New explorations in the effect of temperature on grain boundary...

204

Materials Science & Technology 2005 (MS&T'05)  

Science Conference Proceedings (OSTI)

Sep 25, 2005... Materials and Life Management Issues; Materials for the Hydrogen Economy; Modeling and Simulation of Titanium Technology: Theory and ...

205

MS&T'11 Poster Session: Processing and Product Manufacturing ...  

Science Conference Proceedings (OSTI)

Oct 18, 2011 ... With the increasing cost of natural gas, power-generating turbines are looking ..... take place (main phase is TiAl with layer depth 10-15 mcm).

206

MS&T 03 Final Program.p65  

Science Conference Proceedings (OSTI)

Nov 11, 2003 ... Engrg., 2014 Bainer Hall, Davis, CA 95616 USA. The current waste ...... USA; Dan Backman, GE-Aircraft Engines, Lynn, MA 01910-0001.

207

MS&T'11 Poster Session: Nanotechnology Program Organizers ...  

Science Conference Proceedings (OSTI)

Oct 18, 2011 ... NC prepared by thermal hydrolysis method was used to put adlayers of .... loading conditions results from runaway shear banding propagation.

208

MS&T '04 Volume 2: Continuous Casting Fundamentals, Engineered  

Science Conference Proceedings (OSTI)

Continuous Casting Fundamentals I – Initial Solidification and Interfacial .... Continuous Casting Fundamentals II – Mold Fluid Flow and Water Spray Cooling.

209

MS&T'11 Poster Session: Materials Performance Program ...  

Science Conference Proceedings (OSTI)

Oct 18, 2011... S.M.H. Mirbagheri2; R. Tafteh2; 1Case Western Reserve University; .... 180 Study of the Quality of Calcined Petroleum Coke and Its ... The normal tension specimens were tested using a high rate hydraulic testing machine.

210

MS&T'11 Poster Session: Fundamentals and Characterization ...  

Science Conference Proceedings (OSTI)

Oct 18, 2011 ... Program Organizers: Chris Wood, TMS Tuesday 11:00 ..... Powders were compacted and pellets were prepared using conventional sintering.

211

MS&T'11 Poster Session: Electronic and Magnetic Materials ...  

Science Conference Proceedings (OSTI)

Oct 18, 2011... as solid state transformers, memories, sensors, and spintronic devices. .... grain distribution and relaxing stress of copper foil, which was very ...

212

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

SciTech Connect

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

213

OPERATIONS REVIEW OF THE SAVANNAH RIVER SITE INTEGRATED SALT DISPOSITION PROCESS - 11327  

SciTech Connect

The Savannah River Site (SRS) is removing liquid radioactive waste from its Tank Farm. To treat waste streams that are low in Cs-137, Sr-90, and actinides, SRS developed the Actinide Removal Process and implemented the Modular Caustic Side Solvent Extraction (CSSX) Unit (MCU). The Actinide Removal Process contacts salt solution with monosodium titanate to sorb strontium and select actinides. After monosodium titanate contact, the resulting slurry is filtered to remove the monosodium titanate (and sorbed strontium and actinides) and entrained sludge. The filtrate is transferred to the MCU for further treatment to remove cesium. The solid particulates removed by the filter are concentrated to {approx} 5 wt %, washed to reduce the sodium concentration, and transferred to the Defense Waste Processing Facility for vitrification. The CSSX process extracts the cesium from the radioactive waste using a customized solvent to produce a Decontaminated Salt Solution (DSS), and strips and concentrates the cesium from the solvent with dilute nitric acid. The DSS is incorporated in grout while the strip acid solution is transferred to the Defense Waste Processing Facility for vitrification. The facilities began radiological processing in April 2008 and started processing of the third campaign ('MarcoBatch 3') of waste in June 2010. Campaigns to date have processed {approx}1.2 million gallons of dissolved saltcake. Savannah River National Laboratory (SRNL) personnel performed tests using actual radioactive samples for each waste batch prior to processing. Testing included monosodium titanate sorption of strontium and actinides followed by CSSX batch contact tests to verify expected cesium mass transfer. This paper describes the tests conducted and compares results from facility operations. The results include strontium, plutonium, and cesium removal, cesium concentration, and organic entrainment and recovery data. Additionally, the poster describes lessons learned during operation of the facility.

Peters, T.; Poirier, M.; Fondeur, F.; Fink, S.; Brown, S.; Geeting, M.

2011-02-07T23:59:59.000Z

214

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

Science Conference Proceedings (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

215

JET MIXING ANALYSIS FOR SRS HIGH-LEVEL WASTE RECOVERY  

Science Conference Proceedings (OSTI)

The process of recovering the waste in storage tanks at the Savannah River Site (SRS) typically requires mixing the contents of the tank to ensure uniformity of the discharge stream. Mixing is accomplished with one to four slurry pumps located within the tank liquid. The slurry pump may be fixed in position or they may rotate depending on the specific mixing requirements. The high-level waste in Tank 48 contains insoluble solids in the form of potassium tetraphenyl borate compounds (KTPB), monosodium titanate (MST), and sludge. Tank 48 is equipped with 4 slurry pumps, which are intended to suspend the insoluble solids prior to transfer of the waste to the Fluidized Bed Steam Reformer (FBSR) process. The FBSR process is being designed for a normal feed of 3.05 wt% insoluble solids. A chemical characterization study has shown the insoluble solids concentration is approximately 3.05 wt% when well-mixed. The project is requesting a Computational Fluid Dynamics (CFD) mixing study from SRNL to determine the solids behavior with 2, 3, and 4 slurry pumps in operation and an estimate of the insoluble solids concentration at the suction of the transfer pump to the FBSR process. The impact of cooling coils is not considered in the current work. The work consists of two principal objectives by taking a CFD approach: (1) To estimate insoluble solids concentration transferred from Tank 48 to the Waste Feed Tank in the FBSR process and (2) To assess the impact of different combinations of four slurry pumps on insoluble solids suspension and mixing in Tank 48. For this work, several different combinations of a maximum of four pumps are considered to determine the resulting flow patterns and local flow velocities which are thought to be associated with sludge particle mixing. Two different elevations of pump nozzles are used for an assessment of the flow patterns on the tank mixing. Pump design and operating parameters used for the analysis are summarized in Table 1. The baseline pump orientations are chosen by the previous work [Lee et. al, 2008] and the initial engineering judgement for the conservative flow estimate since the modeling results for the other pump orientations are compared with the baseline results. As shown in Table 1, the present study assumes that each slurry pump has 900 gpm flowrate for the tank mixing analysis, although the Standard Operating Procedure for Tank 48 currently limits the actual pump speed and flowrate to a value less than 900 gpm for a 29 inch liquid level. Table 2 shows material properties and weight distributions for the solids to be modeled for the mixing analysis in Tank 48.

Lee, S.

2011-07-05T23:59:59.000Z

216

IMPACTS OF SMALL COLUMN ION EXCHANGE STREAMS ON DWPF GLASS FORMULATION: KT05- AND KT06-SERIES GLASS COMPOSITIONS  

SciTech Connect

This report is the second 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. The KT05-series glasses were selected, fabricated, and characterized to further study glass compositions where iron titanate crystals had been previously found to form. The intent was to better understand the mechanisms and compositions that favored the formation of crystals containing titanium. Formation of these crystalline phases was confirmed. Increased Na{sub 2}O concentrations had little if any impact on reducing the propensity for the formation of the iron titanate crystalline phases. Other physical properties of these glasses were not measured since the intent was to focus on crystallization. Additional studies are suggested to investigate the potential impacts of Al{sub 2}O{sub 3} and K{sub 2}O on crystallization in glasses with high TiO{sub 2} concentrations. The KT06-series glasses were selected, fabricated, and characterized to further study glass compositions that, while broader than the current projections for DWPF feeds with SCIX material, are potential candidates for future processing (i.e., the compositions are acceptable for processing by the Product Composition Control System (PCCS) with the exception of the current TiO{sub 2} concentration constraint). The chemical compositions of these glasses matched well with the target values. The chemical durabilities of all the glasses were acceptable relative to the Environmental Assessment (EA) benchmark. Minor crystallization was identified in some of the slowly cooled glasses, although this crystallization did not impact chemical durability. Several of the KT06-series compositions had durability values that, while acceptable, were not accurately predicted by the current durability models. It was shown that for these high TiO{sub 2} concentration glasses, relatively high Fe{sub 2}O{sub 3} concentrations combined with relatively high Al{sub 2}O{sub 3} concentrations led to durabilities that were unpredictable. Several of the KT06-series glasses also had measured viscosity values that were not well predicted by the current model. A statistical partitioning routine showed that the measured viscosities became unpredictable by the current model when the Fe{sub 2}O{sub 3} concentration in the glasses was less than about 8.2 wt % at the elevated TiO{sub 2} concentrations. The current durability and viscosity models will have to be further evaluated should compositions in these regions become necessary for DWPF processing. Overall, the results presented for the KT06-series glasses show that TiO{sub 2} from the SCIX streams can be incorporated into DWPF-type glasses at concentrations of 6 wt % (in glass) without any detrimental impacts on crystallization or chemical durability that are of practical importance. The measured values for chemical durability and viscosity were acceptable for processing; however, not all of the values were predictable by the current PCCS models. Since the compositions selected for the KT06-series glasses were outside the current projections for DWPF processing with the SCIX streams (in terms of waste components other than TiO{sub 2}), these results help identify compositional regions that, if necessary for processing, would require modifications to the current models. Additional experiments are currently underway. Once completed, all of the measured data will be reviewed and compared to model predictions to better determine whether the validation range of the DWPF process control models can be confidently extended, or whether refitting of the models will be necessary.

Fox, K.; Edwards, T.

2011-01-03T23:59:59.000Z

217

(IV) Oxide and Barium Titanate  

Science Conference Proceedings (OSTI)

In a first investigation of its kind, a commercially available additive manufacturing platform has been applied to “print” metal oxide gas sensors. The M-Lab from ...

218

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

Science Conference Proceedings (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

219

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

Science Conference Proceedings (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

220

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

SciTech Connect

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

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

Improved Strontium and Actinide Separations  

Effect of aging on mMST performance 15 wt% mMST suspension in water Dried mMST powder mMST dissolved Scanning electron micrograph of mMST in sulfuric ...

222

Opening MS&T'12 Plenary Focuses on Materials and Manufacturing ...  

Science Conference Proceedings (OSTI)

Aug 23, 2012... successful technology implementation, Smith will present examples highlighting efforts in sustainability, composite materials, and lighting.

223

Estimation of the Turbulent Fraction in the Free Atmosphere from MST Radar Measurements  

Science Conference Proceedings (OSTI)

Small-scale turbulence in the free atmosphere is known to be intermittent in space and time. The turbulence fraction of the atmosphere is a key parameter in order to evaluate the transport properties of small-scale motions and to interpret clear-...

Richard Wilson; Francis Dalaudier; Francois Bertin

2005-09-01T23:59:59.000Z

224

2011 Summer Lecture Series Organized by MPA and MST Divisions and LANL Institutes  

E-Print Network (OSTI)

: Plutonium Nonproliferation Fri. July 8 NHMFL Chuck Mielke: National High Magnetic Field Tour Mon. July 11

225

Classical confinement and outward convection of impurity ions in the MST RFP  

Science Conference Proceedings (OSTI)

Impurity ion dynamics measured with simultaneously high spatial and temporal resolution reveal classical ion transport in the reversed-field pinch. The boron, carbon, oxygen, and aluminum impurity ion density profiles are obtained in the Madison Symmetric Torus [R. N. Dexter et al., Fusion Technol. 19, 131 (1991)] using a fast, active charge-exchange-recombination-spectroscopy diagnostic. Measurements are made during improved-confinement plasmas obtained using inductive control of tearing instability to mitigate stochastic transport. At the onset of the transition to improved confinement, the impurity ion density profile becomes hollow, with a slow decay in the core region concurrent with an increase in the outer region, implying an outward convection of impurities. Impurity transport from Coulomb collisions in the reversed-field pinch is classical for all collisionality regimes, and analysis shows that the observed hollow profile and outward convection can be explained by the classical temperature screening mechanism. The profile agrees well with classical expectations. Experiments performed with impurity pellet injection provide further evidence for classical impurity ion confinement.

Kumar, S. T. A.; Den Hartog, D. J.; Mirnov, V. V.; Eilerman, S.; Nornberg, M.; Reusch, J. A.; Sarff, J. S. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Caspary, K. J.; Chapman, B. E.; Parke, E. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Magee, R. M. [Department of Physics, West Virginia University, Morgantown, WV 26506 (United States); Brower, D. L.; Ding, W. X.; Lin, L. [Department of Physics and Astronomy, University of California, Los Angeles, California 90095 (United States); Craig, D. [Physics Department, Wheaton College, Wheaton, Illinois 60187 (United States); Fiksel, G. [Center for Magnetic Self-Organization in Laboratory and Astrophysical Plasmas, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Laboratory for Laser Energetics, University of Rochester, Rochester, New York (United States)

2012-05-15T23:59:59.000Z

226

MS&T'11 Poster Session: Ceramic and Glass Materials Program ...  

Science Conference Proceedings (OSTI)

Oct 18, 2011 ... Program Organizers: Chris Wood, TMS Tuesday ..... Ceramic pellets were prepared using hydraulic press (2 ton) and sintered at 1500ºC/4 hrs.

227

The “real” approximation factor of the MST heuristic for the minimum energy broadcasting  

Science Conference Proceedings (OSTI)

This paper deals with one of the most studied problems in the last few years in the field of wireless communication in ad-hoc networks. The problem consists of reducing the total energy consumption of wireless radio stations distributed over a given ... Keywords: Ad-hoc networks, broadcast, energy saving, spanning tree

Michele Flammini; Alfredo Navarra; Stephane Perennes

2007-02-01T23:59:59.000Z

228

THERMAL MODELING ANALYSIS OF CST MEDIA IN THE SMALL COLUMN ION EXCHANGE PROJECT  

SciTech Connect

Models have been developed to simulate the thermal characteristics of Crystalline Silicotitanate (CST) ion exchange media fully loaded with radioactive cesium in a column configuration and distributed within a waste storage tank. This work was conducted to support the Small Column Ion Exchange (SCIX) program which is focused on processing dissolved, high-sodium salt waste for the removal of specific radionuclides (including Cs-137, Sr-90, and actinides) within a High Level Waste (HLW) storage tank at the Savannah River Site. The SCIX design includes CST columns inserted and supported in the tank top risers for cesium removal. Temperature distributions and maximum temperatures across the column were calculated with a focus on process upset conditions. A two-dimensional computational modeling approach for the in-column ion-exchange domain was taken to include conservative, bounding estimates for key parameters such that the results would provide the maximum centerline temperatures achievable under the design configurations using a feed composition known to promote high cesium loading on CST. One salt processing scenario includes the transport of the loaded (and possibly ground) CST media to the treatment tank floor. Therefore, additional thermal modeling calculations were conducted using a three-dimensional approach to evaluate temperature distributions for the entire in-tank domain including distribution of the spent CST media either as a mound or a flat layer on the tank floor. These calculations included mixtures of CST with HLW sludge or loaded Monosodium Titanate (MST) media used for strontium/actinide sorption. The current full-scale design for the CST column includes one central cooling pipe and four outer cooling tubes. Most calculations assumed that the fluid within the column was stagnant (i.e. no buoyancy-induced flow) for a conservative estimate. A primary objective of these calculations was to estimate temperature distributions across packed CST beds immersed in waste supernate or filled with dry air under various accident scenarios. Accident scenarios evaluated included loss of salt solution flow through the bed (a primary heat transfer mechanism), inadvertent column drainage, and loss of active cooling in the column. The calculation results showed that for a wet CST column with active cooling through one central and four outer tubes and 35 C ambient external air, the peak temperature for the fully-loaded column is about 63 C under the loss of fluid flow accident, which is well below the supernate boiling point. The peak temperature for the naturally-cooled (no active, engineered cooling) wet column is 156 C under fully-loaded conditions, exceeding the 130 C boiling point. Under these conditions, supernate boiling would maintain the column temperature near 130 C until all supernate was vaporized. Without active engineered cooling and assuming a dry column suspended in unventilated air at 35 C, the fully-loaded column is expected to rise to a maximum of about 258 C due to the combined loss-of coolant and column drainage accidents. The modeling results demonstrate that the baseline design using one central and four outer cooling tubes provides a highly efficient cooling mechanism for reducing the maximum column temperature. Results for the in-tank modeling calculations clearly indicate that when realistic heat transfer boundary conditions are imposed on the bottom surface of the tank wall, as much as 450 gallons of ground CST (a volume equivalent to two ion exchange processing cycles) in an ideal hemispherical shape (the most conservative geometry) can be placed in the tank without exceeding the 100 C wall temperature limit. Furthermore, in the case of an evenly-distributed flat layer, the tank wall reaches the temperature limit after the ground CST material reaches a height of approximately 8 inches.

Lee, S.

2010-11-01T23:59:59.000Z

229

Dielectric Constant of Hydrothermal Barium Titanate Powders  

Science Conference Proceedings (OSTI)

Opacified, Reinforced Aerogel for Thermal Insulation of Thermoelectric Generators and Other Advanced Energy Systems · Oxide Ceramic Materials for ...

230

Humidity response characteristics of barium titanate  

SciTech Connect

Humidity response characteristics of BaTiO[sub 3] doped with lanthanum were examined using complex impedance measurements. A sample with relative density of 71% showed a nearly log-linear increase of conductivity with humidity at 118 Hz. The average capacitance of bulk changed little with humidity; however, the resistance showed a gradual decrease. The equivalent circuit explaining such an observation was presented.

Hwang, Tae Jin; Choi, Gyeong Man (Pohang Inst. of Science and Tech., Pohang (Korea, Republic of). Dept. of Materials Science and Engineering)

1993-03-01T23:59:59.000Z

231

Graph algorithms in the titan toolkit.  

Science Conference Proceedings (OSTI)

Graph algorithms are a key component in a wide variety of intelligence analysis activities. The Graph-Based Informatics for Non-Proliferation and Counter-Terrorism project addresses the critical need of making these graph algorithms accessible to Sandia analysts in a manner that is both intuitive and effective. Specifically we describe the design and implementation of an open source toolkit for doing graph analysis, informatics, and visualization that provides Sandia with novel analysis capability for non-proliferation and counter-terrorism.

McLendon, William Clarence, III; Wylie, Brian Neil

2009-10-01T23:59:59.000Z

232

Titan Logix Corp: Rugged Level Monitoring  

emergency shut down if the loading capacity is exceeded. The TD80 tracks volume accurately in a mobile tanker to 1/5th of an inch, particularly

233

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

Science Conference Proceedings (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

234

CX-005766: Categorical Exclusion Determination | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

235

Raman study of lead zirconate titanate under uniaxial stress  

SciTech Connect

The authors used micro-Raman spectroscopy to monitor the ferroelectric (FE) to antiferroelectric (AFE) phase transition in PZT ceramic bars during the application of uniaxial stress. They designed and constructed a simple loading device, which can apply sufficient uniaxial force to transform reasonably large ceramic bars while being small enough to fit on the mechanical stage of the microscope used for Raman analysis. Raman spectra of individual grains in ceramic PZT bars were obtained as the stress on the bar was increased in increments. At the same time gauges attached to the PZT bar recorded axial and lateral strains induced by the applied stress. The Raman spectra were used to calculate an FE coordinate, which is related to the fraction of FE phase present. The authors present data showing changes in the FE coordinates of individual PZT grains and correlate these changes to stress-strain data, which plot the macroscopic evolution of the FE-to-AFE transformation. Their data indicates that the FE-to-AFE transformation does not occur simultaneously for all PZT grains but that grains react individually to local conditions.

TALLANT, DAVID R.; SIMPSON, REGINA L.; GRAZIER, J. MARK; ZEUCH, DAVID H.; OLSON, WALTER R.; TUTTLE, BRUCE A.

2000-04-01T23:59:59.000Z

236

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

NLE Websites -- All DOE Office Websites (Extended Search)

as northern Europe and Canada, or at high altitudes, like mountainous areas of the US and China, these regions simply don't adopt wind power-despite powerful gusts of renewable...

237

Cuprate-titanate superconductor and method for making  

DOE Patents (OSTI)

A new copper oxide superconductor of the formula Ln{sub 1{minus}x}M{sub x}Sr{sub 2}Cu{sub 3{minus}y}Ti{sub y}O{sub 7+{delta}} is disclosed, and exhibits a {Tc} of 60 K with deviations from linear metallic behavior as high as 130 K. 2 Figs.

Toreki, R.; Poeppelmeier, K.; Dabrowski, B.

1995-05-23T23:59:59.000Z

238

Synthesis and Size Control of Tetragonal Barium Titanate ...  

Science Conference Proceedings (OSTI)

Environmental Assessment of Li-CNT Battery Production ... The Production of High-Quality Magnesite Ore Concentrate With Permroll Type Magnetic Separator.

239

The Chemical Origin and Evolution of Titan's Volatiles  

E-Print Network (OSTI)

's farmland Coal-to-liquids (Fischer-Tropsch) 500 litres/t 2.5 Mt coal/yr 5.5 Mt coal/yr (2.5 Mt transport + 3 Mt electricity) or 40 years supply Forest biomass (Fischer-Tropsch) 210 litres/t 5.8Mt biomass 145

Kaiser, Ralf I.

240

High performance radiation transport simulations: preparing for Titan  

Science Conference Proceedings (OSTI)

In this paper we describe the Denovo code system. Denovo solves the six-dimensional, steady-state, linear Boltzmann transport equation, of central importance to nuclear technology applications such as reactor core analysis (neutronics), radiation shielding, ...

C. Baker; G. Davidson; T. M. Evans; S. Hamilton; J. Jarrell; W. Joubert

2012-11-01T23:59:59.000Z

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.


241

Sodium Bismuth Titanate Ceramics Prepared by Magnetic Field and ...  

Science Conference Proceedings (OSTI)

... Ferroelectrics with Giant Electrocaloric Effect for Dielectric Refrigeration ... Processes during Sintering: Establishing a Tool Kit for Materials Design in PZT.

242

High performance radiation transport simulations: Preparing for TITAN  

Science Conference Proceedings (OSTI)

In this paper we describe the Denovo code system. Denovo solves the six-dimensional, steady-state, linear Boltzmann transport equation, of central importance to nuclear technology applications such as reactor core analysis (neutronics), radiation shielding, ...

C. Baker, G. Davidson, T. M. Evans, S. Hamilton, J. Jarrell, W. Joubert

2012-11-01T23:59:59.000Z

243

Low Temperature Fired Ca-Cu Titanate Multilayers  

Science Conference Proceedings (OSTI)

Energy Harvesting Utilized Resonance Phenomena of Piezoelectric Unimorph · Estimating Flexoelectric Properties of Piezoelectric Crystals: Utilization of a ...

244

Lead zirconate titanate nanotubes processed via soft template infiltration .  

E-Print Network (OSTI)

??Nanoscale ferroelectric materials have numerous possible applications such as actively tunable photonic crystals, terahertz emitters, ultrasound transducers, and energy harvesters. One of most technologically relevant… (more)

Bernal, Ashley Lynn

2011-01-01T23:59:59.000Z

245

Adsorbents of Titanate Nanofibers and Nanotubes for the Removal ...  

Science Conference Proceedings (OSTI)

Radioactive Demonstrations of Fluidized Bed Steam Reforming (FBSR) with Hanford Low Activity Wastes · Radionuclide Behavior and Geochemistry in Boom  ...

246

Exposure to, perceptions and levels of mental skills among tertiary institution field hockey players / Maryke Eloff.  

E-Print Network (OSTI)

??The importance of mental skills training (MST) is emphasized by previous/available research findings which show that by combining MST with physical training it enhances players’… (more)

Eloff, Maryke

2010-01-01T23:59:59.000Z

247

Successful Demolition of Historic Cape Canaveral Air Force Station Launch Facilities: Managing the Process to Maximize Recycle Value to Fund Demolition  

SciTech Connect

This paper will present the history of the Atlas 36 and Titan 40 Space Launch Complexes (SLC), the facility assessment process, demolition planning, recycle methodology, and actual facility demolition that resulted in a 40% reduction in baseline cost. These two SLC launched hundreds of payloads into space from Cape Canaveral Air Force Station (AFS), Florida. The Atlas-Centaur family of rockets could lift small- to medium-size satellites designed for communications, weather, or military use, placing them with near pinpoint accuracy into their intended orbits. The larger Titan family was relied upon for heavier lifting needs, including launching military satellites as well as interplanetary probes. But despite their efficiency and cost-effectiveness, the Titan rockets, as well as earlier generation Atlas models, were retired in 2005. Concerns about potential environmental health hazards from PCBs and lead-based paint chipping off the facilities also contributed to the Air Force's decision in 2005 to dismantle and demolish the Atlas and Titan missile-launching systems. Lockheed Martin secured the complex following the final launch, removed equipment and turned over the site to the Air Force for decommissioning and demolition (D and D). AMEC was retained by the Air Force to perform demolition planning and facility D and D in 2004. AMEC began with a review of historical information, interviews with past operations personnel, and 100% facility assessment of over 100 structures. There where numerous support buildings that due to their age contained asbestos containing material (ACM), PCB-impacted material, and universal material that had to be identified and removed prior to demolition. Environmental testing had revealed that the 36B mobile support tower (MST) exceeded the TSCA standard for polychlorinated biphenyls (PCB) paint (<50 ppm), as did the high bay sections of the Titan Vertical Integration Building (VIB). Thus, while most of the steel structures could be completely recycled, about one-third of 36B MST and the affected areas of the VIB were to be consigned to an on-site regulated waste landfill. In all, it is estimated that approximately 10,000,000 kg (11,000 tons) of PCB-coated steel will be land-filled and 23,000,000 kg (25,000 tons) will be recycled. The recycling of the steel and other materials made it possible to do additional demolition by using these funds. Therefore, finding ways to maximize the recycle value of materials became a key factor in the pre-demolition characterization and implementation strategy. This paper will present the following: - Critical elements in demolition planning working at an active launch facility; - Characterization and strategy to maximize steel recycle; - Waste disposition strategy to maximize recycle/reuse and minimize disposal; - Recycle options available at DOD installations that allow for addition funds for demolition; - Innovation in demolition methodologies for large structures - explosive demolition and large-scale dismantlement; - H and S aspects of explosive demolition and large scale dismantlement. In conclusion: The Cape Canaveral AFS Demolition Program has been a great success due to the integration of multiple operations and contractors working together to determine the most cost-effective demolition methods. It is estimated that by extensive pre-planning and working with CCAFS representatives, as well as maximizing the recycle credits of various material, primarily steel, that the government will be able to complete what was base-lined to be a $30 M demolition program for < $20 M. Other factors included a competitive subcontractor environment where they were encouraged with incentives to maximize recycle/reuse of material and creative demolition solutions. Also, by overlapping multiple demolition tasks at multiple facilities allowed for a reduction in field oversight. (authors)

Jones, A.; Hambro, L. [AMEC Earth and Environmental, Inc., Cocoa, FL (United States); Hooper, K. [U.S. Air Force 45th Space Wing, Patrick AFB, Florida (United States)

2008-07-01T23:59:59.000Z

248

Please turn over and complete the remainder of the form. Camp Titan of Associated Students, CSUF, Inc. Titan Student Union Room 269  

E-Print Network (OSTI)

_________________ ___ ____________ _________________ ___ ____________ _________________ ___ ____________ _________________ ___ ____________ _________________ ___ ____________ _________________ ___ ____________ Total monthly income from all sources AFDC Number MediCal Number Foster Care Case Number Referral Agency

de Lijser, Peter

249

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  

Science Conference Proceedings (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

250

Evaluation of Alternative Filter Media for the Rotary Microfilter  

SciTech Connect

The Savannah River Site is currently developing and testing several processes to treat high level radioactive liquid waste. Each of these processes has a solid-liquid separation process that limits its throughput. Savannah River National Laboratory researchers identified and tested the rotary microfilter as a technology to increase solid-liquid separation throughput. The authors believe the rotary microfilter throughput can be improved by using a better filter membrane. Previous testing showed that asymmetric filters composed of a ceramic membrane on top of a stainless steel support produced higher filter flux than 100% stainless steel symmetric filters in crossflow filter tests. Savannah River National Laboratory and Oak Ridge National Laboratory are working together to develop asymmetric ceramic ? stainless steel composite filters and asymmetric 100% stainless steel filters to improve the throughput of the rotary microfilter. The Oak Ridge National Laboratory Inorganic Membrane Group fabricated samples of alternative filter membranes. In addition, Savannah River National Laboratory obtained samples of filter membranes from Pall, Porvair, and SpinTek. They tested these samples in a static test cell with feed slurries containing monosodium titanate and simulated sludge.

Poirier, M. R.; Herman, D. T.; Bhave, R.

2011-11-09T23:59:59.000Z

251

Efficient and Scalable Retrieval Techniques for Global File Properties  

E-Print Network (OSTI)

and Oak Ridge Leadership Computing Facility. Titan Web Page, 2011. http://www.olcf.ornl.gov/titan/. [25] C

Miller, Barton P.

252

The Uintah Framework: A Unified Heterogeneous Task Scheduling and Runtime System  

E-Print Network (OSTI)

Computing Facility, "Titan Web Page," 2011, http://www.olcf.ornl.gov/titan/. [15] J. Vetter, R. Glassbrook

Utah, University of

253

Radiation Modeling Using the Uintah Heterogeneous CPU/GPU Runtime System  

E-Print Network (OSTI)

and Oak Ridge Leadership Computing Facility. Titan Web Page, 2011. http://www.olcf.ornl.gov/titan/. [25] C

Utah, University of

254

Nyx: A Massively Parallel AMR Code for Computational Ann S. Almgren1  

E-Print Network (OSTI)

Computing Facility, "Titan Web Page," 2011, http://www.olcf.ornl.gov/titan/. [15] J. Vetter, R. Glassbrook

Bell, John B.

256

Theory and Applications of the Minimum Spanning Tree Rank Histogram  

Science Conference Proceedings (OSTI)

A minimum spanning tree (MST) rank histogram (RH) is a multidimensional ensemble reliability verification tool. The construction of debiased, decorrelated, and covariance-homogenized MST RHs is described. Experiments using Euclidean L2, variance, ...

Daniel Gombos; James A. Hansen; Jun Du; Jeff McQueen

2007-04-01T23:59:59.000Z

257

Basis for Section 3116 Determination for Salt Waste Disposal...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

concentrate the insoluble solids and the MST solids loaded with Sr and actinides, if MST treatment of the waste was performed. The cross-flow filtration process will yield a...

258

The Minimum Spanning Tree Histogram as a Verification Tool for Multidimensional Ensemble Forecasts  

Science Conference Proceedings (OSTI)

The minimum spanning tree (MST) histogram is a multivariate extension of the ideas behind the conventional scalar rank histogram. It tabulates the frequencies, over n forecast occasions, of the rank of the MST length for each ensemble, within the ...

D. S. Wilks

2004-06-01T23:59:59.000Z

259

TITAN: Thunderstorm Identification, Tracking, Analysis, and Nowcasting—A Radar-based Methodology  

Science Conference Proceedings (OSTI)

A methodology is presented for the real-time automated identification, tracking, and short-term forecasting of thunderstorms based on volume-scan weather radar data. The emphasis is on the concepts upon which the methodology is based. A “storm” ...

Michael Dixon; Gerry Wiener

1993-12-01T23:59:59.000Z

260

3D Convective Storm Identification, Tracking, and Forecasting—An Enhanced TITAN Algorithm  

Science Conference Proceedings (OSTI)

Storm identification, tracking, and forecasting make up an essential part of weather radar and severe weather surveillance operations. Existing nowcasting algorithms using radar data can be generally classified into two categories: centroid and ...

Lei Han; Shengxue Fu; Lifeng Zhao; Yongguang Zheng; Hongqing Wang; Yinjing Lin

2009-04-01T23:59:59.000Z

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.


261

Magnetic Co-doping of Niobium-doped Strontium Titanate Thin ...  

Science Conference Proceedings (OSTI)

Lighting Enhancement of GaN LEDs by Applying p-Type Ni(P):SnO2 TCO on p- GaN Epitaxial Layer · Localized Temperature Stability in Multilayer LTCC.

262

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

263

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

E-Print Network (OSTI)

Full Journal Title:Journal of Chemical Physics, 2009, 130,FIELD Full Journal Title:Chemical Physics Letters, 2002,Journal Title:Journal of Chemical Physics, 1983, 78, 688. D.

Kaiser, Ralf I.

2010-01-01T23:59:59.000Z

264

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

265

Kinetics of the Direct Causticizing Reaction between Black Liquor and Titanates During Low Temperature Gasification.  

E-Print Network (OSTI)

??Gasification of kraft black liquor increases the amount of Na2CO3, which needs to be converted into NaOH in the lune cycle because one mole of… (more)

Chen, Xiaowen

2005-01-01T23:59:59.000Z

266

Between heaven and Earth: the exploration of Titan Tobias C. Owen,a  

E-Print Network (OSTI)

that the produced cellulosic ethanol is assumed to have relatively lower costs than Fischer-Tropsch, but that Fisher-Tropsch, such as oil use in transportation. The paper also discusses the role of cellulosic ethanol and Fischer-Tropsch from biomass; cellulosic ethanol and Fischer-Tropsch. Ethanol is produced from lignocellulose through

267

Between heaven and Earth: the exploration of Titan Tobias C. Owen,a  

E-Print Network (OSTI)

. Available data: technical data presented by Cai et al. (1995); (k) Fisher-Tropsch (FT) synthesis: the FT Fischer­Tropsch GC glycerol carbonate i process index ISBL installed cost of equipments inside battery loadings effects on the activity and selectivity of carbon nanotubes supported cobalt catalyst in Fischer­Tropsch

Atreya, Sushil

268

S&TR | January/February 2007: Titan Leads the Way in Laser-Matter...  

NLE Websites -- All DOE Office Websites (Extended Search)

and Andrew Mackinnon of the NIF Programs Directorate are studying the optimization of electron and proton transport for fast ignition. The Department of Energy Office of Science's...

269

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

E-Print Network (OSTI)

and irradiated propane ice gas phase sublimation profiles.to crystalline phase ethane ices. 111 Having discussed theethane ice converts to an amorphous phase over the

Kaiser, Ralf I.

2010-01-01T23:59:59.000Z

270

The Iceberg and the Titanic: Electoral Defeat, Policy Moods, and Party Change  

E-Print Network (OSTI)

Multiple factors can be offered to explain the Labour victory and Conservative defeat in the 2001 British general election. Here we pursue one of the most interesting explanations offered by a modified Downsian model of ...

Lovenduski, Joni

2003-01-01T23:59:59.000Z

271

Study of NB5+ Substitution on Barium Titanate by Rietveld Method  

Science Conference Proceedings (OSTI)

Synthesis and Characterization of Plasma Polymerized Thin Films Deposited from Benzene and Hexamethyldisiloxane Using (PECVD) Method · Synthesis and ...

272

Residual stress relief due to fatigue in tetragonal lead zirconate titanate ceramics  

SciTech Connect

High energy synchrotron XRD was employed to determine the lattice strain {epsilon}{l_brace}111{r_brace}and diffraction peak intensity ratio R{l_brace}200{r_brace}in tetragonal PZT ceramics, both in the virgin poled state and after a bipolar fatigue experiment. It was shown that the occurrence of microstructural damage during fatigue was accompanied by a reduction in the gradient of the {epsilon}{l_brace}111{r_brace}-cos{sup 2} {psi} plot, indicating a reduction in the level of residual stress due to poling. In contrast, the fraction of oriented 90 Degree-Sign ferroelectric domains, quantified in terms of R{l_brace}200{r_brace}, was not affected significantly by fatigue. The change in residual stress due to fatigue is interpreted in terms of a change in the average elastic stiffness of the polycrystalline matrix due to the presence of inter-granular microcracks.

Hall, D. A.; Mori, T. [School of Materials, University of Manchester, Grosvenor St., Manchester M1 7HS (United Kingdom); Comyn, T. P. [Institute for Materials Research, Woodhouse Lane, University of Leeds, LS2 9JT (United Kingdom); Ringgaard, E. [Meggitt Sensing Systems, Hejreskovvej 18A, 3490 Kvistgaard (Denmark); Wright, J. P. [ESRF, 6 Rue Jules Horowitz, BP-220, 38043 Grenoble Cedex (France)

2013-07-14T23:59:59.000Z

273

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

E-Print Network (OSTI)

induced formation of n-butane. Although absorption bandsthe fundamental modes of the n-butane species in the presentspectra indicates that n-butane was not formed under the

Kaiser, Ralf I.

2010-01-01T23:59:59.000Z

274

Solvothermal synthesis of designed nonstoichiometric strontium titanate for efficient visible-light photocatalysis  

SciTech Connect

SrTiO{sub 3} powders with various Sr/Ti atomic ratios were synthesized by microwave-assisted solvothermal reactions of SrCl{sub 2} and Ti(OC{sub 3}H{sub 7}){sub 4} in KOH aqueous solutions. The nanoparticles of perovskite type SrTiO{sub 3} structure with the particle size of 30-40 nm were synthesized. The photocatalytic activity was determined by deNO{sub x} ability using light emitting diode lamps of various wavelengths such as 627 nm (red), 530 nm (green), 445 nm (blue), and 390 nm (UV). The photocatalytic activity significantly changed depending on the Sr/Ti atomic ratio, i.e., the strontium rich sample (Sr/Ti atomic ratio>1) showed excellent visible light responsive photocatalytic activity for the oxidative destruction of NO.

Sulaeman, Uyi; Yin, Shu; Sato, Tsugio [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577 (Japan)

2010-09-06T23:59:59.000Z

275

Measurements of isotope effects in the photoionization of N2 and implications for Titan's atmosphere  

E-Print Network (OSTI)

= 1.00±0.02. Using the solar spectrum shown in Figure 2c forFor comparison, the solar spectrum from Woods et al. (1998)

Croteau, Philip

2011-01-01T23:59:59.000Z

276

Nonaqueous solution synthesis process for preparing oxide powders of lead zirconate titanate and related materials  

DOE Patents (OSTI)

A process is disclosed for producing powders of perovskite-type compounds which comprises mixing a metal alkoxide solution with a lead acetate solution to form a homogeneous, clear metal solution, adding an oxalic acid/n-propanol solution to this metal solution to form an easily filterable, free-flowing precursor powder and then calcining this powder. This process provides fine perovskite-phase powders with ferroelectric properties which are particularly useful in a variety of electronic applications. 4 figs.

Voigt, J.A.; Sipola, D.L.; Tuttle, B.A.; Anderson, M.T.

1999-06-01T23:59:59.000Z

277

Catalytic reforming and hydrocracking of organic compounds employing promoted zinc titanate as the catalytic agent  

Science Conference Proceedings (OSTI)

The catalytic reforming of a feedstock which contains at least one reformable organic compound or the hydrocracking of a feedstock which contains at least one hydrocrackable organic compound is carried out in the presence of a catalyst composition comprising zinc, titanium and rhenium.

Drehman, L.E.; Farha, F.E.

1981-04-21T23:59:59.000Z

278

Catalytic reforming and hydrocracking of organic compounds employing zinc titanate as the catalytic agent  

Science Conference Proceedings (OSTI)

The catalytic reforming of a feedstock which contains at least one reformable organic compound or the hydrocracking of a feedstock which contains at least one hydrocrackable organic compound is carried out in the presence of a catalyst composition comprising zinc and titanium.

Drehman, L.E.; Farha, F.E.; Walker, D.W.

1981-04-21T23:59:59.000Z

279

Effect of Sulfur and Hydrocarbon Fuels on Titanate/Ceria SOFC Anodes  

DOE Green Energy (OSTI)

The purpose of the project is to develop low-cost, high-performance anodes that offer low polarization resistance as well as improved tolerance for nonidealities in anode environment such as redox cycles, sulfur and other poisons, and hydrocarbons.

Marina, O.A.; Pedersen, L.R.; Stevenson, J.W.

2005-01-27T23:59:59.000Z

280

Laser Applications in Materials Processing - Programmaster.org  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2010. Symposium, Laser Applications in Materials Processing. Sponsorship, MS&T ...

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

Laser Applications in Materials Technology (II)  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2011. Symposium, Laser Applications in Materials Technology (II). Sponsorship, MS&T  ...

282

Advanced Developments in Electron Microscopy  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2011. Symposium, Advanced Developments in Electron Microscopy. Sponsorship, MS&T ...

283

Electron Backscatter Diffraction  

Science Conference Proceedings (OSTI)

Oct 19, 2011 ... Recent Advances in Structural Characterization of Materials: Electron Backscatter Diffraction Sponsored by: MS&T Organization Program ...

284

Nanothermites: Unconventional Nanomaterials with High Energy ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, MS&T'13 Poster Session. Presentation Title, Nanothermites: Unconventional ...

285

Energy Conversion/Fuel Cells  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2011. Symposium, Energy Conversion/Fuel Cells. Sponsorship, MS&T Organization.

286

utr b ca nco d at U.S. ACo0r 42140. A ..d  

E-Print Network (OSTI)

. Rev. Lett. (2001) 1999 Scott Backhaus MST-10 A Thermoacoustic-Stirling Heat Engine Nature (1999) #12;

Oak Ridge National Laboratory

287

Alternative Energy Sources for Reducing Dependence on Fossil Fuels  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, MS&T'10 Plenary Session. Presentation Title, Plenary Panelist: Alternative ...

288

Materials in Turbine Engine Environments - Programmaster.org  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, MS&T'13 Plenary. Presentation Title, Materials in Turbine Engine ...

289

Experimental investigations of photochemically-generated organic aerosols and applications to early Earth and Mars  

E-Print Network (OSTI)

in Titan’s atmospheric aerosols from in situ pyrolysis andformation rates of organic aerosols through time-resolved inExperiments of Titan Aerosol Analogues in Preparation for

Chu, Emily Faye

2013-01-01T23:59:59.000Z

290

Glossary Term - Tritium  

NLE Websites -- All DOE Office Websites (Extended Search)

Titans Previous Term (Titans) Glossary Main Index Next Term (Uranus) Uranus Tritium Discovered in 1934, tritium is an unstable isotope of the element hydrogen. An atom of tritium...

291

446 IEEE TRANSACTIONSONULTRASONICS.FERROELECTRICS,ANDFREQUEKCYCONTROL, VOL. 3X. NO. S. SEPTEMBER 1991 Characterization of Lead Zirconate Titanate Ceramics  

E-Print Network (OSTI)

that heating andmechanicalagitation in the lappingprocedure re- sulted in some depoling of the samples

Roth, David B.

292

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

E-Print Network (OSTI)

-valent iron. Fischer-Tropsch (F-T) synthesis of hydrocarbons from CO and H2 in the presence of metals- plicated as the form of carbon primarily responsible. A mechanism analogous to the Fischer-Tropsch in iron/water systems, which suggested a possible connection to Fischer-Tropsch synthesis of hydrocarbons

Atreya, Sushil

293

TITAN : an advanced three dimensional coupled neutronicthermal-hydraulics code for light water nuclear reactor core analysis  

E-Print Network (OSTI)

The accurate analysis of nuclear reactor transients frequently requires that neutronics, thermal-hydraulics and feedback be included. A number of coupled neutronics/thermal-hydraulics codes have been developed for this ...

Griggs, D. P.

1984-01-01T23:59:59.000Z

294

Materials Science & Technology 2003  

Science Conference Proceedings (OSTI)

MS&T '03 integrates and expands upon two seminal fall events: the ISS MECHANICAL WORKING AND STEEL PROCESSING CONFERENCE and the TMS ...

295

The Engineering Accreditation Process - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 17, 2011 ... Sponsored by: MS&T Organization ... In this session, ABET HQ staff will address ABET's recent initiatives to proactively support innovation in ...

296

Nanotube Reinforced Metal Matrix Composites II  

Science Conference Proceedings (OSTI)

Symposium, Nanotube Reinforced Metal Matrix Composites II. Sponsorship, MS&T Organization. Organizer(s), Indrajit Charit, University of Idaho Sudipta Seal  ...

297

Welding Technologies and Applications  

Science Conference Proceedings (OSTI)

Oct 20, 2011 ... Joining of Advanced and Specialty Materials (JASM XIII): Welding Technologies and Applications Sponsored by: MS&T Organization Program ...

298

Nano- and Atomic-Scale Fracture - Programmaster.org  

Science Conference Proceedings (OSTI)

Mar 29, 2011 ... About this Symposium. Meeting, Materials Science & Technology 2011. Symposium, Nano- and Atomic-Scale Fracture. Sponsorship, MS&T ...

299

TMS and Springer Launch New and Innovative Open Access Journal  

Science Conference Proceedings (OSTI)

Oct 16, 2011... 2011 Conference & Exhibition (MS&T'11) in Columbus, Ohio, The journal will begin publishing in early 2012. Under the Open Access model, ...

300

District Heating with Renewable Energy Webinar | Department of...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Heating with Renewable Energy Webinar November 20, 2012 1:00PM MST Webinar This no cost Community Renewable Energy Success Stories webinar on "District Heating with...

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

b. ABET PROGRAM EVALUATORS 1. Criteria for Evaluator: The ...  

Science Conference Proceedings (OSTI)

A response will be provided to the person raising the concern through the ... MS&T, and Material Research Society meetings according to the demand, and ...

302

Biofuels: The End of the Beginning  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2010. Symposium, MS&T'10 Plenary Session. Presentation Title, Biofuels: The End of the ...

303

C10: Synthesis and Characterization of Polyvinylidene Fluoride  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, MS&T'12 Poster Session. Presentation Title, C10: Synthesis and ...

304

Exploring How Municipal Utilities Fund Solar Energy Projects...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exploring How Municipal Utilities Fund Solar Energy Projects Webinar Exploring How Municipal Utilities Fund Solar Energy Projects Webinar February 19, 2013 1:00PM MST Webinar This...

305

Materials Science and Technology Division - Physical Sciences...  

NLE Websites -- All DOE Office Websites (Extended Search)

| Features Archive PSD Directorate MST Division Mechanical Properties and Mechanics Group The Mechanical Properties and Mechanics Group (MP&M) conducts applied research...

306

D3: Heap Acid Leaching of Uranium Ore-Application of Fractional ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, MS&T'12 Poster Session. Presentation Title, D3: Heap Acid Leaching of ...

307

Ion Irradiation Effects  

Science Conference Proceedings (OSTI)

Oct 17, 2011 ... Materials Science Challenges for Nuclear Applications: Ion Irradiation Effects Sponsored by: MS&T Organization Program Organizers: Ram ...

308

Laser Materials Processing - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 17, 2011 ... Laser Applications in Materials Technology (II): Laser Materials Processing Sponsored by: MS&T Organization Program Organizers: Stephen ...

309

Materials for Transportation Applications: Selected Proceedings ...  

Science Conference Proceedings (OSTI)

Oct 15, 2006 ... A collection of papers from MS&T'06 held in Cincinnati, OH, October 15-19, 2006, covering topics related to Materials for Transportation ...

310

Materials for Transportation Applications: Selected Proceedings ...  

Science Conference Proceedings (OSTI)

Sep 16, 2007 ... A collection of papers from MS&T'07 held in Detroit, MI, September 16-20, 2007, covering topics related to Materials for Transportation ...

311

Electron Beam Melting (EBM)  

Science Conference Proceedings (OSTI)

Oct 18, 2011 ... Additive Manufacturing of Metals: Electron Beam Melting (EBM) I Sponsored by: MS&T Organization Program Organizers: Ian D. Harris, EWI; ...

312

Electron Beam Melting (EBM) II  

Science Conference Proceedings (OSTI)

Oct 19, 2011 ... Additive Manufacturing of Metals: Electron Beam Melting (EBM) II Sponsored by: MS&T Organization Program Organizers: Ian D. Harris, EWI; ...

313

E39: Metallurgical Examination of Impulsively Loaded Vessels  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2012. Symposium, MS&T'12 Poster Session. Presentation Title, E39: Metallurgical Examination of ...

314

Study of Buried InAs Quantum Dots by Ballistic Electron Emission ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2013. Symposium, MS&T'13 Poster Session. Presentation Title, Study of Buried InAs Quantum ...

315

Lattice Truss Structures - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 20, 2011 ... Periodic Cellular Materials: Current Status and Recent Progress: Lattice Truss Structures Sponsored by: MS&T Organization Program ...

316

SOFCs  

Science Conference Proceedings (OSTI)

Oct 18, 2010 ... Clean Energy: Fuel Cells, Batteries, Renewables - Materials, Processing, and Manufacturing: SOFC I Sponsored by: MS&T Organization

317

Fatigue and Microstructure: A Symposium on Recent Advances  

Science Conference Proceedings (OSTI)

Symposium, Fatigue and Microstructure: A Symposium on Recent Advances. Sponsorship, MS&T Organization. Organizer(s), Amit Shyam, Oak Ridge National  ...

318

Publications Portal  

Science Conference Proceedings (OSTI)

... MS&T2006 symposia (October 15-19, 2006; Duke Energy Center, Cincinnati ... Hynes Convention Center and the Sheration Boston Hotel, starting the ...

2012-09-17T23:59:59.000Z

319

Pb-Free Solders and Next Generation Interconnects  

Science Conference Proceedings (OSTI)

About this Symposium. Meeting, Materials Science & Technology 2011. Symposium, Pb-Free Solders and Next Generation Interconnects. Sponsorship, MS&T ...

320

TMSe-News: The monthly newsletter of TMS  

Science Conference Proceedings (OSTI)

Seoul, Korea October 26 - November 2, 2013. Materials Science & Technology 2013 Conference and Exhibition (MS&T'13) Montreal, Quebec, Canada October  ...

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

Cast Irons - Programmaster.org  

Science Conference Proceedings (OSTI)

Oct 20, 2011 ... Processing, Microstructure and Properties of Cast Irons and Cast and Forged Specialty Steels: Cast Irons Sponsored by: MS&T Organization

322

Renewable Energy Market Update | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

MST Attendees will learn about the latest developments of the five types of renewable energy technologies (biomass, geothermal, low-head hydro, solar, and wind). Attendees will...

323

In Situ Stabilization of Trace Metals in a Copper-Contaminated Soil using P-Spiked Linz-Donawitz Slag  

E-Print Network (OSTI)

(phosphogypsum, desulfogypsum and titan-gypsum for example). Though, some other are still studied, especially

Paris-Sud XI, Université de

324

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

NLE Websites -- All DOE Office Websites (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)

325

LIFE EXTENSION PROGRAM FOR THE MODULAR CAUSTIC SIDE SOLVENT EXTRACTION UNIT AT SAVANNAH RIVER SITE  

Science Conference Proceedings (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, A.

2012-11-14T23:59:59.000Z

326

Design, optimization, and selectivity of inorganic ion-exchangers for radioactive waste remediation  

E-Print Network (OSTI)

The processes of development of nuclear weapons resulted in accumulation of thousands of curies of high-level radioactive waste. Liquid waste produced in the US has been stored in carbon steel tanks in highly alkaline (1-3 M NaOH, 6 M sodium salts) media for fifty years and leakage has occurred. One of the approaches to the solution of the problem of radioactive waste is to adsorb the nuclides on highly selective ion-exchange material, solidify in a glass matrix and dispose in a geological formation. The use of the ion-exchange technology is limited by the time of the sorbent-solution contact required to reduce the activity of the streams to acceptable levels. Inorganic ion-exchangers are promising materials due to their high radiation stability, extreme selectivity, and compatibility with the glass matrix. The contact time can be reduced by improving selectivities, kinetics, and capacities of the materials towards the target ions. This can be accomplished in part through understanding of the origin of ion-exchange selectivity. Crystalline zeotypes with minerals sitinakite (ideal formula Na2Ti2O3SiO4??2H2O) and pharmacosiderite (HM3(TO)4(GeO4)x(SiO4)3-x M = Cs+, Na+, K+, T=Nb5+, Ge4+, Ti4+) structures are excellent candidates for selectivity studies because of their ion-exchange properties tunable by alterations of synthetic procedures, and isomorphous framework substitution. The Nb-substitution in titanium sites reduces the framework charge, whereas Ge substitution decreases the unit cell size if in titanium sites and increases if it in silicon sites. The compounds were hydrothermally synthesized in Ti/Si, Ti/Nb/Si, Ti/Ge/Si forms and characterized by structural and ion-exchange studies. The 25% Nb substitution in titanosilicate sitinakite resulted in enhanced selectivity for cesium and additional bond formation of cesium within the channel. The selectivity for cesium in germanium substituted pharmacosiderite also was correlated with the coordination environment within the channel. In the advanced stages of this study semi-crystalline (sodium nonatitanate) and amorphous (monosodium titanate) materials also were considered because of their remarkable strontium selectivity. In situ X-ray diffraction techniques revealed that the sodium nonatitanate precedes the formation of the TS phase in hydrothermal synthesis. This knowledge allowed us to design and synthesize material for combined cesium and strontium removal.

Medvedev, Dmitry Gennadievich

2004-08-01T23:59:59.000Z

327

BIRTH WAILS AND DEATH THROES of celestial titans--such as the black holes (spheres) colliding in this supercomputer simulation--rumble through the  

E-Print Network (OSTI)

engine noise from jets passing over- head can work its way in," Raab says. Down in the control room, we in 1984, no one has doubted that only a Her- culean feat of engineering would make it work. That is one to his eyes, on a mound near the center of the LIGO Hanford Observatory. He runs his gaze northward down

Millis, Andrew

328

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)

triple-axis (r crystal spectrometers at the N. R. U. reactor of LL A. E. C. L., Chalk River, Canada of the crystal dynamics. The temperature dependence exhibited by certain modes could be obtained with only small centre zation vectors were compatible with the crystal orien- and at the zone boundary. The former

Paris-Sud XI, Université de

329

Design, Analysis, and Characterization of Lead Magnesium Niobate - Lead Titanate (PMN-PT) Single Crystal Energy Harvesters for Rotorcraft Wireless Sensor Applications.  

E-Print Network (OSTI)

??The aerospace industry is quickly becoming extremely interested in structural healthmonitoring (SHM) and condition based maintenance (CBM). The current passive approach foraircraft maintenance and damage… (more)

Wozniak, Michael

2013-01-01T23:59:59.000Z

330

Li4Ti5O12 as an anode material for Li ion batteries in situ XRD and XPS studies.  

E-Print Network (OSTI)

?? This thesis examines parts of the kinetics and performance in Li-battery cells using lithium titanate anodes and lithium manganese oxide cathodes. Lithium titanate (Li4Ti5O12)… (more)

Nordh, Tim

2013-01-01T23:59:59.000Z

331

Glossary Term - Thor  

NLE Websites -- All DOE Office Websites (Extended Search)

Tantalus Previous Term (Tantalus) Glossary Main Index Next Term (Titans) Titans Thor In Norse mythology, Thor is the god of thunder and the son of Odin and Earth. Thor possesses a...

332

OLCF | Oak Ridge Leadership Computing Facility | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

of new phenomena with ramifications for how we live our lives. Machines like Titan and activities like the Titan project will be the vehicles that allow us to explore...

333

Stabilization of Graphene-Polyaniline Based Nanocomposite ...  

Science Conference Proceedings (OSTI)

Presentation Title, Stabilization of Graphene-Polyaniline Based Nanocomposite Electrodes Using Barium Strontium Titanate for Supercapacitor Application.

334

Story Line: La Berg Ancien Chapter One  

E-Print Network (OSTI)

, did happen. Can't sink the fucking Titanic, did sink her, wham, straight down, broken in half like

Boyce, C. Kevin

335

Exploring Power Behaviors and Trade-offs of In-situ Data Marc Gamell,  

E-Print Network (OSTI)

analytics pipeline, running on the Titan system at ORNL; (2) a power model based on system power and data

Pakin, Scott

336

Dielectric, Piezoelectric, and Ferroelectric Devices  

Science Conference Proceedings (OSTI)

Table 12   Dielectric constants at 25 °C (75 °F)...κ Teflon 2.1 Silica glass 3.8 Polyvinylidene fluoride 8.4 Alumina 10 Magnesium oxide 20 Barium tetratitanate 40 Titanium dioxide 100 Calcium titanate 160 Strontium titanate 320 Barium titanate 1000â??5000 Barium zirconium titanate 20,000 Lead magnesium niobate 20,000...

337

EVER TO EXCEL Boston College  

E-Print Network (OSTI)

. For a very few icy moons (Titan, Triton, Enceladus), the emission of gas associated with cryovolcanic.g. Pappalardo et al. 1999; Fagents 2003), Titan (Sotin et al. 2005; Lopes et al. 2007; Radebaugh et al. 2007. On Titan, the measurements performed by the Huygens mass spectrometer (Niemann et al. 2005) provide

Huang, Jianyu

338

Space Sci Rev (2010) 153: 375410 DOI 10.1007/s11214-010-9641-3  

E-Print Network (OSTI)

. For a very few icy moons (Titan, Triton, Enceladus), the emission of gas associated with cryovolcanic.g. Pappalardo et al. 1999; Fagents 2003), Titan (Sotin et al. 2005; Lopes et al. 2007; Radebaugh et al. 2007. On Titan, the measurements performed by the Huygens mass spectrometer (Niemann et al. 2005) provide

Nimmo, Francis

339

Catalytic skeletal isomerization  

Science Conference Proceedings (OSTI)

The catalytic reforming of a feedstock which contains a derivative of cyclopentane or which contains organic compounds which are convertible to a derivative of cyclopentane is carried out in the presence of a hydrogrel of zinc titanate and a suitable acidic material. Also, the attrition resistance of zinc titanate is improved by incorporating the zinc titanate into a hydrogel structure.

Aldag, A.W.

1984-05-01T23:59:59.000Z

340

Los Alamos Lab: MPA: Materials Research Highlights  

NLE Websites -- All DOE Office Websites (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)

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

Event:Enhancing Capacity for Low Emission Development Strategies...  

Open Energy Info (EERE)

Enhancing Capacity for Low Emission Development Strategies (EC-LEDS): Distributed Generation: 1:00pm-2:00pm MST on 20121220 A webinar on distributed generation, presented...

342

Renewable Energy Market Update Webinar | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Renewable Energy Market Update Webinar Renewable Energy Market Update Webinar January 29, 2014 11:00AM MST Attendees will learn about the latest developments of the five types of...

343

Other Nonferrous  

Science Conference Proceedings (OSTI)

Materials for Oil and Gas Transport by Russell Kane, $79.00 ($79.00), $79.00. Available at wiley.com, Materials Science & Technology 2003 (MS&T'03)

344

Assessing the Thermal Stability of Bulk Metallic Glasses for Nuclear ...  

Science Conference Proceedings (OSTI)

Sep 16, 2007 ... Presented as part of the symposium on Iron-Based Amorphous Metals held at MS&T'07 in Detroit, Michigan, September 16–20, 2007.

345

ShaRE Staff  

NLE Websites -- All DOE Office Websites (Extended Search)

Our Staff The ShaRE User Facility is directly associated with The Microscopy Group in the Materials Science & Technology (MST) Division at ORNL. ShaRE staff are also members of The...

346

Characteristics of Vertical Velocity Cores in Different Convective Systems Observed over Gadanki, India  

Science Conference Proceedings (OSTI)

The Indian mesosphere–stratosphere–troposphere (MST) radar measurements during the passage of 60 convective systems are used to study the vertical air velocity (w) characteristics of tropical convection. The up- and downdraft cores and various ...

K. N. Uma; T. Narayana Rao

2009-03-01T23:59:59.000Z

347

Differences in Draft Core Statistics from the Wet to Dry Spell over Gadanki, India (13.5°N, 79.2°E)  

Science Conference Proceedings (OSTI)

The Indian mesosphere–stratosphere–troposphere (MST) radar observations during the passage of 37 convective systems are utilized to investigate the characteristics of vertical air velocity w in different convection categories (shallow, deep, and ...

T. Narayana Rao; K. N. Uma; T. Mohan Satyanarayana; D. Narayana Rao

2009-12-01T23:59:59.000Z

348

ADMINISTRATIVE AND POLICY MANUAL FOR THE MINERALS ...  

Science Conference Proceedings (OSTI)

plaque triple-matted in a wood frame with glass. Winners of this ...... Annual Meeting, MS&T, the ACerS Daytona Beach Meeting and Material Research Society.

349

MT@TMS  

Science Conference Proceedings (OSTI)

Materials for Nuclear Power ... Posted on: 10/04/2011 ... scientific workforce and accelerating the transition from research to new products, processes and services, ... MS&T 2011 is organized as a partnership the American Ceramic Society, the ...

350

Energy Management in the Materials Industry: Registration - TMS  

Science Conference Proceedings (OSTI)

Energy Management in the Materials Industry A Short Course Planned in Conjunction with MS&T'13. Sunday, October 27, 2013 • 8:00 a.m. to 12:00 p.m.

351

Energy Management in the Materials Industry: Housing - TMS  

Science Conference Proceedings (OSTI)

Energy Management in the Materials Industry A Short Course Planned in Conjunction with MS&T'13. Sunday, October 27, 2013 • 8:00 a.m. to 12:00 p.m.

352

Statistics of Mechanics or Statistical modeling of plastic ...  

Science Conference Proceedings (OSTI)

... yielding at small length scales JR Morris,1,2 H. Bei,1 EP George,1,2 GM Pharr2,1 1 MS&T Division, Oak Ridge National Lab, Oak Ridge, TN 2 Dept. ...

2012-10-04T23:59:59.000Z

353

NREL: About NREL - National Wind Technology Center - Visitor...  

NLE Websites -- All DOE Office Websites (Extended Search)

CO weather as of: 700 PM MST SAT JAN 18 2014 Clear 41F (5C) Clear Details & Forecast Transportation There is no public transportation to the National Wind Technology...

354

NREL: About NREL - Golden - Local Information  

NLE Websites -- All DOE Office Websites (Extended Search)

CO weather as of: 700 PM MST SAT JAN 18 2014 Clear 41F (5C) Clear Details & Forecast Transportation NREL is accessible via bus on the RTD route 20 from Aurora and Denver....

355

INSTITUTE OF PHYSICS PUBLISHING MEASUREMENT SCIENCE AND TECHNOLOGY Meas. Sci. Technol. 13 (2002) 8491 PII: S0957-0233(02)28495-7  

E-Print Network (OSTI)

.iop.org/MST/13/84 Abstract An inexpensive and portable pulsed light emitting diode (LED) source with variable availableintheformofindiumgalliumnitridebasedcompound semiconductors [5] used to fabricate laser diodes and light emitting diodes (LEDs). The dc output

Strathclyde, University of

356

Conduction cooling for an LSI package: a one-dimensional approach  

Science Conference Proceedings (OSTI)

The introduction of LSI packaging has significantly increased the number of circuits per silicon chip, and at the same time has greatly increased their heat flux density. In comparison to earlier MST (monolithic systems technology) products, the heat ...

R. C. Chu; U. P. Hwang; R. E. Simons

1982-01-01T23:59:59.000Z

357

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

358

Validation of Winds Measured by MU Radar with GPS Radiosondes during the MUTSI Campaign  

Science Conference Proceedings (OSTI)

For many years, mesosphere–stratosphere–troposphere (MST) radar techniques have been used for studying the structure and dynamics of the lower and middle atmosphere. In particular, these instruments are unique tools for continuously monitoring ...

H. Luce; S. Fukao; M. Yamamoto; C. Sidi; F. Dalaudier

2001-06-01T23:59:59.000Z

359

Materials Science & Technology 2003 CALENDAR OF EVENTS - TMS  

Science Conference Proceedings (OSTI)

Nov 9, 2003 ... 12:00 pm-6:00 pm East Tower, Purple Level. Exhibit Hall. MS&T '03 Exhibition. Exhibit Hours. 12:00 pm-6:00 pm East Tower, Purple Level.

360

On the Vertical Distribution of Mean Vertical Velocities in the Convective Regions during the Wet and Dry Spells of the Monsoon over Gadanki  

Science Conference Proceedings (OSTI)

The Indian Mesosphere–Stratosphere–Troposphere (MST) radar observations of vertical distribution of mean vertical velocities w in convective regions during the wet and dry spells of the Indian summer monsoon over a tropical station at Gadanki, ...

K. N. Uma; K. Kishore Kumar; Siddarth Shankar Das; T. N. Rao; T. M. Satyanarayana

2012-02-01T23:59:59.000Z

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.


361

CRUCIBLE TESTING OF TANK 48 RADIOACTIVE WASTE SAMPLE USING FBSR TECHNOLOGY FOR ORGANIC DESTRUCTION  

SciTech Connect

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

362

CRUCIBLE TESTING OF TANK 48H RADIOACTIVEWASTE SAMPLE USING FLUIDIZED BED STEAMREFORMING TECHNOLOGY FOR ORGANICDESTRUCTION  

SciTech Connect

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

363

Electrode materials and lithium battery systems  

DOE Patents (OSTI)

A material comprising a lithium titanate comprising a plurality of primary particles and secondary particles, wherein the average primary particle size is about 1 nm to about 500 nm and the average secondary particle size is about 1 .mu.m to about 4 .mu.m. In some embodiments the lithium titanate is carbon-coated. Also provided are methods of preparing lithium titanates, and devices using such materials.

Amine, Khalil (Downers Grove, IL); Belharouak, Ilias (Westmont, IL); Liu, Jun (Naperville, IL)

2011-06-28T23:59:59.000Z

364

Synthesis and Electrical Analysis of Nano-crystalline Barium ...  

Science Conference Proceedings (OSTI)

Presentation Title, Synthesis and Electrical Analysis of Nano-crystalline Barium Titanate Nanocomposites for use in High-Energy Density Applications. Author(s)

365

Characterization and Chemical Bonding Structure of Fluorocarbon ...  

Science Conference Proceedings (OSTI)

Energy Landscape in Frustrated Systems: Cation Hopping and Relaxation in ... Low Temperature Co-fired Ca-Cu Titanate Multilayers for Integration into LTCC ...

366

ABSTRACT: Ion-Induced Damage Accumulation and Electron-Beam ...  

Science Conference Proceedings (OSTI)

Jun 27, 2007... Ion-Induced Damage Accumulation and Electron-Beam-Enhanced ... damage accumulation in strontium titanate from 1.0 MeV Au irradiation

367

Ceramic Composition for Immobilization of Actinides  

DOE Patents (OSTI)

Disclosed is a ceramic composition for the immobilization of actinides, particularly uranium and plutonium. The ceramic is a titanate material comprising pyrochlore, brannerite and rutile.

Ebbinghaus, Bartley B.; Van Konynenburg, Richard A.; Vance, Eric R.; Stewart, Martin W.; Jostsons, Adam; Allender, Jeffrey S.; Rankin, David Thomas

1999-06-22T23:59:59.000Z

368

JOM Subject Index - TMS  

Science Conference Proceedings (OSTI)

Sep 1, 2004 ... Case studies include TWA Flight 800, Chernobyl, Challenger, and the Titanic. Dover Books: To me, nothing says quality earth-science reading ...

369

Glossary Term - Prometheus  

NLE Websites -- All DOE Office Websites (Extended Search)

Positron Previous Term (Positron) Glossary Main Index Next Term (Proton) Proton Prometheus In Greek mythology, Promethus was the son of the Titan Iapetus. He fought with Zeus...

370

208 Processing of Nano-sized Al  

Science Conference Proceedings (OSTI)

044 Properties of Iron Phosphate Glasses Containing Simulated Hanford LAW · 045 Reoxidation Effects of Reduced Y-Doped Barium Titanate Ceramics for ...

371

203 Nanoscale Synthesis and Photocatalytic Properties of Three ...  

Science Conference Proceedings (OSTI)

044 Properties of Iron Phosphate Glasses Containing Simulated Hanford LAW · 045 Reoxidation Effects of Reduced Y-Doped Barium Titanate Ceramics for ...

372

--No Title--  

NLE Websites -- All DOE Office Websites (Extended Search)

http:www.ornl.govinfopressreleasesgetpressrelease.cfm?ReleaseNumbermr20121114-00 Titan reached a speed of 17.59 petaflops on the Linpack benchmark test - the...

373

Your title  

Science Conference Proceedings (OSTI)

... Oak Ridge Leadership Computing Facility. ... Titan is the next generation Leadership Computing resource to be deployed at the OLCF in 2012 - 2013 ...

2012-06-25T23:59:59.000Z

374

REQUEST BY GOLDEN TECHNOLOGIES, COMPANY, INC., FOR AN ADVANCE...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

handling equipment, and electronic parts for automobiles. Also, an aluminum titanate heat exchanger for industrial applications has been developed. Therefore, GTC's experience...

375

Solar-assisted hydrogen generation by photoelectrocatalysis. Annual report mar 80-feb 81  

SciTech Connect

Improved photoanodes were developed by surface modification of oxide semiconductor electrodes. Semiconductors evaluated were iron oxide, strontium titanate, and titanium dioxide.

Ang, P.G.P.; Richardson, P.F.; Yen, P.H.; Tiller, A.J.; Rossignuolo, A.A.

1982-03-01T23:59:59.000Z

376

Peering into Cells One GPU at a Time | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

sustained performance of 20,000 trillion calculations per second, or 20 petaflops, on the Titan supercomputer at Oak Ridge National Laboratory (ORNL). The achievement makes the...

377

Instruments/Capabilities  

NLE Websites -- All DOE Office Websites (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...

378

Atomic-Level Structure and Composition - Programmaster.org  

Science Conference Proceedings (OSTI)

Feb 15, 2010... Width by Atom Probe Tomography: Michael Miller1; Ai Serizawa1; 1ORNL ... a monochromated and aberration corrected TEM (Titan 80-300 ...

379

TEMPLATE FOR EES DIRECTORATE QUARTERLY HIGHLIGHTS  

NLE Websites -- All DOE Office Websites (Extended Search)

limiting the practical application of dual-fuel operation. This project will utilize Titan to perform massively parallel computational fluid dynamic (CFD) engine simulations...

380

Name of Project Pi(s)/Institution(s)  

NLE Websites -- All DOE Office Websites (Extended Search)

HPC Usage (see slide notes) * Machines currently using Hopper, Jagarpf, Tianhe-1A, Titan, Edison * Hours used in 2012 (list different facilities) Hopper: 20M; Jaguarpf: 5M...

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

CESM Tutorial NCAR Earth System Laboratory  

E-Print Network (OSTI)

" today on the following machines · bluefire ­ NCAR IBM AIX · jaguarpf (titan) ­ ORNL Cray XT6 · hopper

382

--No Title--  

NLE Websites -- All DOE Office Websites (Extended Search)

even though the system draws only modestly more power than a CPU-only system. "With Titan, ORNL provides an exponential increase in scientific computing power toward...

383

Materials - Improving panel performance | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

that can capture the sun's rays more efficiently and maximize power production. Using Titan to simulate the formation of active layers that transform solar energy into...

384

SLAC National Accelerator Laboratory - X-ray Laser Brings Gold...  

NLE Websites -- All DOE Office Websites (Extended Search)

a variety of chemical reactions, and nanocrystals of barium titanate, which multiply energy storage capacity in electronics. "Little bits of optimization of catalysts can go...

385

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

386

Technology Commercialization and Partnerships | BSA 08-05 ...  

Synthesis requires a relatively simple two-step process. In the first step, ... In the second step, high applied heat dehydrates the titanate nanorods, ...

387

Integrated Technology of Decoupling BST Thin Film Capacitors  

Science Conference Proceedings (OSTI)

Jun 16, 2007 ... The integration technology of decoupling capacitors, which contain multi-layered Cu wiring and Barium Strontium Titanate (BST) thin film ...

388

PLZT Nano-Precursors for High Energy Density Applications  

To improve the manufacturing and performance of ceramic materials Sandia National Laboratories has developed a method for synthesizing lanthanum-doped lead zirconate titanate (PLZT) nanoparticle precursors.

389

099 Sol-Gel Processing of Single Phase BiFeO3 Ceramics  

Science Conference Proceedings (OSTI)

044 Properties of Iron Phosphate Glasses Containing Simulated Hanford LAW · 045 Reoxidation Effects of Reduced Y-Doped Barium Titanate Ceramics for ...

390

Cyber Security Awareness Training in the Age of Mobile ...  

Science Conference Proceedings (OSTI)

... Page 24. Property of Titan Info Security Group, LLC ? Instead of clicking on links in email, go to the site like Facebook, LinkedIn, etc. ...

2013-03-28T23:59:59.000Z

391

(PZT) and BNT-BT Induced by  

Science Conference Proceedings (OSTI)

Abstract Scope, Cyclic electric loading on Lead Zirconate Titanate (PZT) leads fatigue of the material and .... Tool Failure Criteria while Drilling Titanium Alloys.

392

Uniaxial Compression Experiments on Lead Zirconate Titanate 95/5-2Nb Ceramic: Evidence for an Orientation-Dependent, ''Maximum Compressive Stress'' Criterion for Onset of the Ferroelectric - Antiferroelectric Polymorphic Transformation  

Science Conference Proceedings (OSTI)

Some time ago we presented evidence that, under nonhydrostatic loading, the F{sub R1} {r_arrow} A{sub O} polymorphic transformation of unpoled PZT 95/5-2Nb (PNZT) ceramic began when the maximum compressive stress equaled the hydro-static pressure at which the transformation otherwise took place. Recently we showed that this simple criterion did not apply to nonhydrostatically compressed, poled ceramic. However, unpoled ceramic is isotropic, whereas poled ceramic has a preferred crystallographic orientation and is mechanically anisotropic. If we further assume that the transformation depends not only on the magnitude of the compressive stress, but also its orientation relative to some feature(s) of PNZT's crystallography, then these disparate results can be qualitatively resolved. It has long been known that this transformation can be triggered in uniaxial compression. Our modified hypothesis makes two predictions for transformation of unpoled polycrystals under uniaxial stress: (i) the transformation should begin when the maximum compressive stress, {sigma}{sub 1}, equals the hydrostatic pressure for transformation, and (ii) a steadily increasing axial stress should be required to drive the transformation.

Zeuch, D.H.; Montgomery, S.T.; Holcomb, D.J.

1999-07-26T23:59:59.000Z

393

O:\ELECTRIC\ORDERS\EA-223.PDF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

394

Accelerated Molecular Dynamics Methods  

NLE Websites -- All DOE Office Websites (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

395

Statistical properties of information flow in financial time series  

E-Print Network (OSTI)

In this study, we tested possible factors that influence the information flow in the stock market. The time dependency, market factors, and market status were assessed using the Korean and US stock market data. We determined that all tested factors were significantly related to the information flow between stocks. Additionally, we have employed an original network consisting of stocks and networks by the minimal spanning tree (MST) method, in order to find a alternative method by which we could effectively investigate the characteristics of information flow between stocks. The empirical evidences gathered using $N-1$ links by the MST method did not differ when $N(N-1)/2$ whole links by the original network were used. These results indicate that links selected via the MST method may be reflective of meaningful characteristics of information flow between stocks in the market.

Eom, Cheoljun; Jung, Woo-Sung

2008-01-01T23:59:59.000Z

396

Los Alamos Lab: MPA: Focus on Facilities  

NLE Websites -- All DOE Office Websites (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).

397

Fusion Engineering and Design 23 (1993) 201-217 201 North-Holland  

E-Print Network (OSTI)

Fusion Engineering and Design 23 (1993) 201-217 201 North-Holland Materials selection criteria and performance analysis for the TITAN-II reversed-field-pinch fusion power core Shahram Sharafat a, Nasr M, Clement P.C. Wong b and the TITAN Team * " Institute of Plasma and Fusion Research, Unieersity

Ghoniem, Nasr M.

398

Low temperature aqueous desulfurization of coal  

DOE Patents (OSTI)

This invention describes a chemical process for desulfurizing coal, especially adaptable to the treatment of coal-water slurries, at temperatures as low as ambient, comprising treating the coal with aqueous titanous chloride whereby hydrogen sulfide is liberated and the desulfurized coal is separated with the conversion of titanous chloride to titanium oxides.

Slegeir, William A. (Hampton Bays, NY); Healy, Francis E. (Massapequa, NY); Sapienza, Richard S. (Shoreham, NY)

1985-01-01T23:59:59.000Z

399

Maximum Entropy Production in Climate Theory  

Science Conference Proceedings (OSTI)

R. D. Lorenz et al. claim that recent data on Mars and Titan show that planetary atmospheres are in unconstrained states of maximum entropy production (MEP). Their model as it applies to Venus, Earth, Mars, and Titan is reexamined, and it is ...

Richard Goody

2007-07-01T23:59:59.000Z

400

PHYS 178 2008 Week 6, Part 1 Great Red Spot and Galilean Moons  

E-Print Network (OSTI)

to the image taken through the clear filter; (ii) superimposing the two resulting images. Thus featuresCallisto's surface. NASA/JPL/DLR #12;Mimas Enceladus Tethys Dione Rhea Titan Hyperion Iapetus Phoebe Saturn's moons The Saturnian satellites (left to right in mosaic: Mimas, Enceladus, Tethys, Dione, Rhea, Titan, Hyperion

Wardle, Mark

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

EVER TO EXCEL Boston College  

E-Print Network (OSTI)

to the image taken through the clear filter; (ii) superimposing the two resulting images. Thus featuresCallisto's surface. NASA/JPL/DLR #12;Mimas Enceladus Tethys Dione Rhea Titan Hyperion Iapetus Phoebe Saturn's moons The Saturnian satellites (left to right in mosaic: Mimas, Enceladus, Tethys, Dione, Rhea, Titan, Hyperion

Huang, Jianyu

402

Adapting Irregular Computations to Large CPU-GPU Clusters in the MADNESS Framework  

E-Print Network (OSTI)

. Harrison Oak Ridge National Laboratory Oak Ridge, TN rjharrison@ornl.gov Abstract--Graphics Processing-node partition on the Titan supercomputer. For this hybrid CPU-GPU implementation, we observe up to a 2BLAS-based kernel. I. INTRODUCTION Titan, at Oak Ridge National Laboratory, will likely be the largest supercomputer

Cooperman, Gene

403

S. Felix Wu Computer Science Department  

E-Print Network (OSTI)

is it? · Social Relationship ­ Facebook'sTitan project! 12/16/10 DSL/FAITH @ ORNL 11 #12;12/16/10 DSL/FAITH @ ORNL 1 #12;Still Ongoing Research... · Research Objectives · Design and System · Issues and Status ­ And, if I have time, I will share with you my humble opinions about Facebook's Titan project! 12

California at Davis, University of

404

Matthew R. Norman Scientific Computing Group  

E-Print Network (OSTI)

-present, Porting the Community Atmosphere Model - Spectral Element (CAM-SE) to ORNL's Titan Supercomputer National Laboratory PO BOX 2008 MS6016 Oak Ridge, TN 37831, USA normanmr@ornl.gov (865) 576-1757 Education-scale atmospheric simu- lation code, to run on Oak Ridge Leadership Computing Facility's (OLCF's) Titan super

405

Low temperature aqueous desulfurization of coal  

DOE Patents (OSTI)

This invention describes a chemical process for desulfurizing coal, especially adaptable to the treatment of coal-water slurries, at temperatures as low as ambient, comprising treating the coal with aqueous titanous chloride whereby hydrogen sulfide is liberated and the desulfurized coal is separated with the conversion of titanous chloride to titanium oxides.

Slegeir, W.A.; Healy, F.E.; Sapienza, R.S.

1985-04-18T23:59:59.000Z

406

Removal of plutonium and americium from alkaline waste solutions  

DOE Patents (OSTI)

High salt content, alkaline waste solutions containing plutonium and americium are contacted with a sodium titanate compound to effect removal of the plutonium and americium from the alkaline waste solution onto the sodium titanate and provide an effluent having a radiation level of less than 10 nCi per gram alpha emitters.

Schulz, Wallace W. (Richland, WA)

1979-01-01T23:59:59.000Z

407

Women @ Energy: Hai Ah Nam | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

408

Events | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

409

The quadratic minimum spanning tree problem: A lower bounding procedure and an efficient search algorithm  

Science Conference Proceedings (OSTI)

In this paper we consider the quadratic minimum spanning tree problem (QMSTP) which is known to be NP-hard. Given a complete graph, the QMSTP consists of finding a minimum spanning tree (MST) where interaction costs between pairs of edges are prescribed. ... Keywords: Lagrangian relaxation, Local search, Quadratic minimum spanning tree problem

Temel Öncan; Abraham P. Punnen

2010-10-01T23:59:59.000Z

410

Office of the Registrar 103 Parker Hall 300 West 13 Street Rolla, MO 65409-0930  

E-Print Network (OSTI)

in underground mines; health effects and control strategies; DPM regulations for both coal and non-coal://registrar.mst.edu An equal opportunity institution 2 EC 2067, Mining Engineering 401, Truck Haulage Engineering and Haul, design, implement and supervise truck haulage in surface mines. It will include haul road design

Ragsdell, Kenneth M.

411

Mean Winds and Momentum Fluxes over Jicamarca, Peru, during June and August 1987  

Science Conference Proceedings (OSTI)

Data from the mesosphere-stratosphere-troposphere (MST) radar at Jicamarca, Peru, together with other available data, are used to diagnose the mean structure of winds and gravity-wave momentum fluxes from the surface to 90 km during two ten-day ...

Matthew H. Hitchman; Kenneth W. Bywaters; David C. Fritts; Lawrence Coy; Erhan Kudeki; Fahri Surucu

1992-12-01T23:59:59.000Z

412

Assemblies of Nanoparticles as 3D Scaffolds for New Materials: from Mechanically Strong Polymer Crosslinked Aerogels  

E-Print Network (OSTI)

Crosslinked Aerogels to Porous Metals and Ceramics Nicholas Leventis Department of Chemistry, Missouri S of nanoparticles known as aerogels come at a high cost: fragility. A recent breakthrough at MS&T is the development of X-aerogels where skeletal inorganic nanoparticles (e.g., silica and >30 other metal oxides

Yamilov, Alexey

413

A faster distributed protocol for constructing a minimum spanning tree  

Science Conference Proceedings (OSTI)

This paper studies the problem of constructing a minimum-weight spanning tree (MST) in a distributed network. This is one of the most important problems in the area of distributed computing. There is a long line of gradually improving protocols ...

Michael Elkin

2004-01-01T23:59:59.000Z

414

Cortical dynamics of navigation and steering in natural scenes: Motion-based object segmentation, heading, and obstacle avoidance  

Science Conference Proceedings (OSTI)

Visually guided navigation through a cluttered natural scene is a challenging problem that animals and humans accomplish with ease. The ViSTARS neural model proposes how primates use motion information to segment objects and determine heading for purposes ... Keywords: MST, MT, Motion segmentation, Navigation, Object tracking, Optic flow, Steering

N. Andrew Browning; Stephen Grossberg; Ennio Mingolla

2009-12-01T23:59:59.000Z

415

Self-stabilizing multicast protocols for ad hoc networks  

Science Conference Proceedings (OSTI)

We propose two distributed algorithms to maintain respectively the minimum weight spanning tree (MST) based multi-cast tree and the shortest path (SPST) multi-cast tree in a given ad hoc network for a given multi-cast group; our algorithms are fault ... Keywords: convergence, distributed system, fault tolerance, multi-cast protocol, self-stabilizing protocol, system graph

Sandeep K. S. Gupta; Pradip K. Srimani

2003-01-01T23:59:59.000Z

416

The Path to Fusion Energy for Concepts Currently at the Concept Exploration Level  

E-Print Network (OSTI)

needed? Advanced diagnostics Theory and simulation Support from base program, technology program BPX Non-nuclear phenomena. [FESAC Report on Alternate Concepts] · Innovation ­­ search for a better fusion reactor ­­ Upgrade path from CE-level MST · NCSX ­­ Built on theory and a strong international data base but no CE

417

Center for Science Education 2011 -2012  

E-Print Network (OSTI)

Center for Science Education Handbook 2011 - 2012 #12;2 Contents Center for Science Education Background page 3 CSE Programs page 5 Masters of Science in Teaching Program (MST) Oregon Teacher Scholars Program (OTSP) Robert Noyce Teacher Scholars Program Intel Northwest Science Expo (NWSE) People page 10

418

CCMR Educational Programs Title: Should We Count the Beans...one at a time?  

E-Print Network (OSTI)

, probability, and trigonometry. · Standard 4 ­ Science: Students will understand and apply scientific concepts ­ Interdisciplinary Problem Solving: Students will apply the knowledge and thinking skills of mathematics, science.supp/sampling bowl.html · Resources on New York Learning Standards http://www.emsc.nysed.gov/ciai/mst/math.html #12

Cohen, Itai

419

Federal Technical Capability Panel Conference Call Schedule  

NLE Websites -- All DOE Office Websites (Extended Search)

Capability Panel Conference Call Schedule CY 2013 Time: 11:00 an -12:00pm (EST) * 10:00-11:00 am (CST) * 9:00-10:00 am (MST) * 8:00-9:00am (PST) Date Call-In Number June 19, 2013...

420

Sandia National Laboratories: Careers: Internships & Co-ops: Technical  

NLE Websites -- All DOE Office Websites (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

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

The Five Fastest Supercomputers at the National Labs | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

422

Memory-intensive benchmarks: IRAM vs. cache-based machines  

E-Print Network (OSTI)

the Stressmarks of the DIS Benchmark Project, v 1.0, TitanB. R. Gaeke, “GUPS Benchmark Manual,” Univ. of California,be indispensable to re-run our benchmarks on the real VIRAM

2001-01-01T23:59:59.000Z

423

Chemical and Charge Imbalance Induced by Radionuclide Decay: Effects on Waste Form Structure  

SciTech Connect

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

424

Sandia National Laboratories: Careers: Internships: Technical...  

NLE Websites -- All DOE Office Websites (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...

425

Supercomputers: Extreme Computing at the National Labs | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

426

Nanocomposites for Magnetic and Dielectric Applications  

Science Conference Proceedings (OSTI)

Mar 14, 2012 ... A modified Stöber method is introduced to synthesize Fe@SiO2 ... as barium titanate and montmorillonite clays can increase the permittivity of the polymer ... GaP nanoparticles were prepared using mild aqueous or colloidal ...

427

Modeling and Characterization of Microstructures in Parts Made by ...  

Science Conference Proceedings (OSTI)

... (SAMP) with overall transformation kinetic models for wide range of materials, ... Analysis of Tin (IV) Oxide and Barium Titanate (IV) Fabricated by 3D Printing on ... Electron Beam Melting of High Niobium Titanium Aluminide Intermetallics: ...

428

--No Title--  

NLE Websites -- All DOE Office Websites (Extended Search)

2 SHARE Media Contact: Fred Strohl Communications 865.574.4165 Energy efficient video game technology in Titan supercomputer Listen to the audio OAK RIDGE, Tenn., Dec. 27, 2012 -...

429

TOP500 Sublist for November 2001  

E-Print Network (OSTI)

the self-made CPlant at Sandia National Labs and the TitanCenter NERSC/LBNL Sandia National Laboratories LawrenceOak Ridge National Laboratory Sandia National Laboratories

Strohmaier, Erich; Meuer, Hans W.; Dongarra, Jack J.; Simon, Horst D.

2001-01-01T23:59:59.000Z

430

Advanced methods development for LWR trsansient analysis, final report : 1981-1982  

E-Print Network (OSTI)

The initial development of TITAN, a three-dimensional coupled neutronics/thermal-hydraulics code for LWR safety analysis, has been completed. The transient neutronics code QUANDRY has been joined to the two-fluid ...

Griggs, D. P.

1982-01-01T23:59:59.000Z

431

Abrupt Transition to Strong Superrotation Driven by Equatorial Wave Resonance in an Idealized GCM  

Science Conference Proceedings (OSTI)

Persistent superrotation is seen in the atmospheres of other terrestrial bodies (Venus, Titan) but not in that of present Earth, which is distinguished by equatorial easterlies. Nevertheless, superrotation has appeared in numerical simulations of ...

Nathan P. Arnold; Eli Tziperman; Brian Farrell

2012-02-01T23:59:59.000Z

432

--No Title--  

NLE Websites -- All DOE Office Websites (Extended Search)

at such a large scale, ranked as the fastest supercomputer in the world in the November 2012 list published at http:www.top500.org. Titan, a Cray XK7 supercomputer (Nasdaq:...

433

Applied Science  

NLE Websites -- All DOE Office Websites (Extended Search)

Nuclear Science EXAFS and XANES of plutonium and uranium edges from titanate ceramics for fissile materials disposition J.A. Fortner, A.J. Kropf, R.J. Finch, M.C. Hash, S.B. Aase,...

434

Media Mentions | ornl.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

from sustainable energy technologies to the environmental consequences of energy use. Titan Gets A Little Help November 19, 2013 - With the announcement of the 42nd TOP500 list...

435

Building Energy Model Calibration using EnergyPlus, Machine Learning, and SupercomputingAutotune  

E-Print Network (OSTI)

through use of advanced database engine technologies Supercomputing and Big-data · ORNL's Jaguar/Titan tuning vs. "Autotune" ORNL's Jaguar and UT's Nautilus supercomputers Public access to simulation data

Parker, Lynne E.

436

Laser Fusion Energy The High Average Power  

E-Print Network (OSTI)

Government labs, 9 Universities, 13 Industries Government Labs 1. NRL 2. LLNL 3. SNL 4. LANL 5. ORNL 6. PPPL. UNC Industry 1. General Atomics 2. Titan/PSD 3. Schafer Corp 4. SAIC 5. Commonwealth Technology 6

437

This project used CUDA and the C programming language to write a program that generates a statistical summary of  

E-Print Network (OSTI)

@pstcc.edu, Pellissippi State Community College, Knoxville, TN 37932 2 {sanyalj, newjr} @ornl.gov, Oak Ridge NationalPlus simulations on the Titan supercomputer. These simulations running parallely on multiple nodes, having 16

Wang, Xiaorui "Ray"

438

ORNL Workshop on Plasma-Surface Interactions for Fusion Oak Ridge, Tennessee, March 2123, 2005.  

E-Print Network (OSTI)

1 ORNL Workshop on Plasma-Surface Interactions for Fusion Oak Ridge, Tennessee, March 21­23, 2005-Huygens mission to Titan #12;5 Risk Assessment: 1. What is the potential impact of the problem? 2. How well

Princeton Plasma Physics Laboratory

439

Meteoritics & Planetary Science 41, Nr 2, 247262 (2006) Abstract available online at http://meteoritics.org  

E-Print Network (OSTI)

­6036, USA *Corresponding author. E-mail: maddenme@ornl.gov (Received 10 June 2005; revision accepted 22) and the Cassini spacecraft is currently investigating the role of volatiles on Titan and Saturn's other moons

Bodnar, Robert J.

440

Supercomputer Assisted Generation of Machine Learning Agents Jibonananda Sanyal, Joshua New, and Richard Edwards  

E-Print Network (OSTI)

of Building Energy Models {sanyalj, newjr}@ornl.gov, redwar15@utk.edu The Autotune methodology Supercomputing lifetimes of the known universe on Titan! o 14 parameter full combinatorial subset of most important ones o

Wang, Xiaorui "Ray"

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

Resources for Researchers | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

Events and Conferences Science & Discovery Organization Lab-directed R&D Careers Visit ORNL Contact Us Solvable problems Titan expands the realm of the possible | More news Home...

442

Brandon Cook NSF CI TraCS Fellow  

E-Print Network (OSTI)

such as TITAN at ORNL contain an order of magnitude more CPU cores (~300,000) and also include GPUs. Codes Materials Sciences Division Oak Ridge National Laboratory (410)310-0026 bln@ornl.gov Publications Lynchburg

Pennycook, Steve

443

Data 2012 Awards  

NLE Websites -- All DOE Office Websites (Extended Search)

system (we have an early science project on Mira), and later on with data from JaguarTitan at ORNL. We will "seed" the project with current simulation results from our "Coyote...

444

This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Security, LLC, Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.  

E-Print Network (OSTI)

with 1 LLNL researcher at ORNL o Virtual Laboratory for Technology (including Materials Research) · HEDLP Facility short pulse Titan Laser Joe Kwan, 33rd FPA Annual Meeting #12;`Snowflake Divertor' NSTX and DIII

445

INCITE grants awarded to 59 computational research projects ...  

NLE Websites -- All DOE Office Websites (Extended Search)

GeneQ system with 49,152 compute nodes and a power-efficient architecture. The OLCF's Titan supercomputer is a 27-petaflops Cray XK7 hybrid system employing both CPUs and...

446

Lawrence Livermore researchers awarded a billion supercomputer...  

NLE Websites -- All DOE Office Websites (Extended Search)

-- Mira, an IBM Blue GeneQ system located at Argonne National Laboratory (ANL), and Titan, a Cray XK7 system located at Oak Ridge National Laboratory (ORNL). Open to...

447

Process for making whiskers, fibers and flakes of transition metal compounds  

DOE Patents (OSTI)

A process for making titanium and chromium nitrides of known morphology by reacting potassium titanate and chromium oxide in the gas phase with NH.sub.3. The products exhibit the same morphology as the starting material.

Bamberger, Carlos E. (Oak Ridge, TN)

1992-01-01T23:59:59.000Z

448

Ink jet printing of PZT thin films for MEMS  

E-Print Network (OSTI)

Of the readily available piezoelectric engineering materials perovskite phase lead zirconate titanate (PZT) has the strongest mechanical to electrical coupling. PZT based devices have the potential to have the highest ...

Bathurst, Stephen, 1980-

2012-01-01T23:59:59.000Z

449

Self-powered wireless sensor system using MEMS piezoelectric micro power generator (PMPG)  

E-Print Network (OSTI)

A thin-film lead zirconate titanate, Pb(Zr,Ti)03, MEMS Piezoelectric Micro Power Generator (PMPG) has been integrated with a commercial wireless sensor node (Telos), to demonstrate a self-powered RF temperature sensor ...

Xia, YuXin, M.B.A. Sloan School of Management.

2006-01-01T23:59:59.000Z

450

Publications Portal  

Science Conference Proceedings (OSTI)

... Hui Chen, Albert Henins Abstract: Photon spectra in the energy range 60 keV to 1 MeV were recorded from targets irradiated by the LLNL Titan and ...

2012-09-17T23:59:59.000Z

451

Interplay between intrinsic defects, doping, and free carrier concentration in SrTiO[subscript 3] thin films  

E-Print Network (OSTI)

Using both computational and experimental analysis, we demonstrate a rich point-defect phase diagram in doped strontium titanate as a function of thermodynamic variables such as oxygen partial pressure and electronic ...

Ertekin, Elif

452

The on-line charge breeding program at TRIUMF's Ion Trap For Atomic and Nuclear Science for precision mass measurements  

Science Conference Proceedings (OSTI)

TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) constitutes the only high precision mass measurement setup coupled to a rare isotope facility capable of increasing the charge state of short-lived nuclides prior to the actual mass determination in a Penning trap. Recent developments around TITAN's charge breeder, the electron beam ion trap, form the basis for several successful experiments on radioactive isotopes with half-lives as low as 65 ms and in charge states as high as 22+.

Simon, M. C.; Eberhardt, B.; Jang, F.; Luichtl, M.; Robertson, D.; Chaudhuri, A.; Delheij, P.; Grossheim, A.; Kwiatkowski, A. A.; Mane, E.; Pearson, M. R.; Schultz, B. E. [TRIUMF, Vancouver, British Columbia V6T 2A3 (Canada); Bale, J. C. [TRIUMF, Vancouver, British Columbia V6T 2A3 (Canada); Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada); Chowdhury, U. [TRIUMF, Vancouver, British Columbia V6T 2A3 (Canada); Department of Physics and Astronomy, University of Manitoba, Winnipeg, Manitoba R3T 2N2 (Canada); Ettenauer, S.; Gallant, A. T.; Dilling, J. [TRIUMF, Vancouver, British Columbia V6T 2A3 (Canada); Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada); Lennarz, A. [TRIUMF, Vancouver, British Columbia V6T 2A3 (Canada); Institut fuer Kernphysik, Westfaelische Wilhelms-Universitaet, D-48149 Muenster (Germany); Ma, T.; Andreoiu, C. [Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6 (Canada); and others

2012-02-15T23:59:59.000Z

453

Renewable Energy Projects in Indian Country | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Renewable Energy Projects in Indian Country Renewable Energy Projects in Indian Country Renewable Energy Projects in Indian Country May 21, 2012 7:45AM MST to May 22, 2012 12:30PM MST Scottsdale, Arizona At the fifth annual Renewable Energy Projects in Indian Country Conference, tribal leaders and professionals will discuss the significant opportunities for energy development in Indian Country, as well as the barriers that tribes must overcome to bring energy projects to fruition. Discussions will include increasing access to private capital, feasibility studies, and how tribes can create sustainable and environmentally responsible economies for the future generations of Indian Country. DOE Office of Indian Energy Director Tracey LeBeau will give the keynote at the conference entitled: "The Next Generation of Indian Energy and

454

Wind Powering America: Webinar Podcasts  

Wind Powering America (EERE)

podcasts_webinar.asp A series of podcasts_webinar.asp A series of Webinars about current wind energy issues. en-us julie.jones@nrel.gov (Julie Jones) http://www.windpoweringamerica.gov/images/wpa_logo_sm.jpg Wind Powering America: Webinar Podcasts http://www.windpoweringamerica.gov/podcasts_webinar.asp Stakeholder Engagement and Outreach Webinar: Jobs and Economic Development Impacts of Offshore Wind http://www.windpoweringamerica.gov/filter_detail.asp?itemid=4004 http://www.windpoweringamerica.gov/filter_detail.asp?itemid=4004 Sun, 1 Dec 2013 00:00:00 MST Small Wind Standards and Policy Update: A WPA Webinar http://www.windpoweringamerica.gov/filter_detail.asp?itemid=3976 http://www.windpoweringamerica.gov/filter_detail.asp?itemid=3976 Fri, 20 Sep 2013 00:00:00 MST 2012 Market Report on U.S. Wind Technologies in

455

OpenEI maintenance March 8-9, 2013 | OpenEI Community  

Open Energy Info (EERE)

OpenEI maintenance March 8-9, 2013 OpenEI maintenance March 8-9, 2013 Home > Groups > Utility Rate Rmckeel's picture Submitted by Rmckeel(297) Contributor 8 March, 2013 - 14:23 developer Maintenance OpenEI We would like to inform the OpenEI community that OpenEI will be undergoing a significant software upgrade during a maintenance window this weekend. We will be upgrading the wiki and semantic mediawiki portions of OpenEI, which means /datasets, /apps, /lod, /sparql and /community will continue to function normally. Additionally, web services that rely on Ask queries (utility rate database API) may have some downtime as we transition. OpenEI will begin maintenance at 5pm MST Friday, March 8th, 2013. This means that the /wiki URLs will go into read-only mode and editing pages will not be possible. Maintenance is expected to end by 5pm MST Saturday,

456

Exploring How Municipal Utilities Fund Solar Energy Projects Webinar |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exploring How Municipal Utilities Fund Solar Energy Projects Exploring How Municipal Utilities Fund Solar Energy Projects Webinar Exploring How Municipal Utilities Fund Solar Energy Projects Webinar February 19, 2013 1:00PM MST Webinar This free webinar presented by the DOE Office of Energy Efficiency and Renewable Energy will take place on February 19, 2013, from 1-2:15 p.m. MST. It will provide information on Concord Light, the municipal electric utility serving Concord, Massachusetts, and their solar photovoltaic (PV) rebate program. Austin Energy will also discuss their innovative "Residential Solar Rate," which replaced net energy metering based on a value of solar analysis. Funding Solar PV Rebates with Utility Cost Savings Concord Light provides rebates to customers who install rooftop or ground-mounted solar systems on their property. The utility funds these

457

Event:Enhancing Capacity for Low Emission Development Strategies (EC-LEDS):  

Open Energy Info (EERE)

Emission Development Strategies (EC-LEDS): Emission Development Strategies (EC-LEDS): Distributed Generation Jump to: navigation, search Calendar.png Enhancing Capacity for Low Emission Development Strategies (EC-LEDS): Distributed Generation: 1:00pm-2:00pm MST on 2012/12/20 A webinar on distributed generation, presented by the National Renewable Energy Laboratory, with funding from the U.S. Agency for International Development. This webinar will cover the basics of distributed generation, with an emphasis on renewable generation technologies and their benefits. Two case studies from the Philippines and India will be presented. Event Details Name Enhancing Capacity for Low Emission Development Strategies (EC-LEDS): Distributed Generation Date 2012/12/20 Time 1:00pm-2:00pm MST Tags LEDS, Training, CLEAN

458

Legal Landscape of Tribal Renewable Energy Development Conference |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

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

459

 

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Transmission electron microscopy (TEM) will be used to analyze particulate from inside two ~18" lengths of process piping from the Tritium Extraction Transmission electron microscopy (TEM) will be used to analyze particulate from inside two ~18" lengths of process piping from the Tritium Extraction Facility (TEF). Radiological survey results indicate the piping contains small amounts of Zn-65 (gamma emitter similar in energy to Co-60) and Cd -109 (gamma emitter) and less than 1 Ci total tritium. Maximum total dose at 1 cm is approximately 20 mrem/hr. TEM sample preparation will be performed by Materials Science and Technology (MS&T) personnel in MS&T facilities in C-wing, Building 773-A. The Analytical Development Section (ADS) will also be performing gamma scans on the as-received package and mass spectroscopy and gamma scans on smears taken from the pipe interiors in B-

460

 

NLE Websites -- All DOE Office Websites (Extended Search)

Transmission electron microscopy (TEM) will be used to analyze particulate from inside two ~18" lengths of process piping from the Tritium Extraction Transmission electron microscopy (TEM) will be used to analyze particulate from inside two ~18" lengths of process piping from the Tritium Extraction Facility (TEF). Radiological survey results indicate the piping contains small amounts of Zn-65 (gamma emitter similar in energy to Co-60) and Cd - 109 (gamma emitter) and less than 1 Ci total tritium. Maximum total dose at 1 cm is approximately 20 mrem/hr. TEM sample preparation will be performed by Materials Science and Technology (MS&T) personnel in MS&T facilities in C-wing, Building 773-A. The Analytical Development Section (ADS) will also be performing gamma scans on the as-received package and mass spectroscopy and gamma scans on smears taken from the pipe interiors in B-wing, Building 773-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.


461

Wind Powering America: Wind Events  

Wind Powering America (EERE)

calendar.asp Lists upcoming wind calendar.asp Lists upcoming wind power-related events. en-us julie.jones@nrel.gov (Julie Jones) http://www.windpoweringamerica.gov/images/wpa_logo_sm.jpg Wind Powering America: Wind Events http://www.windpoweringamerica.gov/calendar.asp Pennsylvania Wind for Schools Educator Workshop https://www.regonline.com/builder/site/Default.aspx?EventID=1352684 http://www.windpoweringamerica.gov/filter_detail.asp?itemid=4068 Wed, 4 Dec 2013 00:00:00 MST 2014 Joint Action Workshop http://www.windpoweringamerica.gov/filter_detail.asp?itemid=3996 http://www.windpoweringamerica.gov/filter_detail.asp?itemid=3996 Mon, 21 Oct 2013 00:00:00 MST AWEA Wind Project Operations and Maintenance and Safety Seminar http://www.windpoweringamerica.gov/filter_detail.asp?itemid=4009 http://www.windpoweringamerica.gov/filter_detail.asp?itemid=4009 Mon, 21

462

Improved spectral analysis for the motional Stark effect diagnostic  

Science Conference Proceedings (OSTI)

The magnetic pitch angle and the magnitude from reversed field pinch plasmas in the Madison symmetric torus (MST) have been routinely obtained from fully resolved motional Stark effect (MSE) spectrum analyses. Recently, the spectrum fit procedure has been improved by initializing and constraining the fit parameters based on the MSE model in the atomic data and analysis structure. A collisional-radiative model with level populations nlm-resolved up to n= 4 and a simple Born approximation for ion-impact cross sections is used for this analysis. Measurement uncertainty is quantified by making MSE measurements with multiple views of a single spatial location, ranging 5%-15% for typical MST operation conditions. A multi-view fit improves the goodness of fit of MSE spectral features and background.

Ko, J. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); National Fusion Research Institute, Daejeon 305-806 (Korea, Republic of); Klabacha, J. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States)

2012-10-15T23:59:59.000Z

463

Few body impulse and fixed scatterer approximations for high energy scattering  

E-Print Network (OSTI)

The elastic scattering differential cross section is calculated for proton scattering from $^6$He at 717 MeV, using single scattering terms of the multiple scattering expansion of the total transition amplitude (MST). We analyse the effects of different scattering frameworks, specifically the Factorized Impulse Approximation (FIA) and the Fixed Scatterer (adiabatic) Approximation (FSA) and the uncertainties associated with the use different structure models.

R. Crespo; A. M. Moro; I. J. Thompson

2006-03-02T23:59:59.000Z

464

Liquid butane filled load for a liner driven Pegasus experiment.  

SciTech Connect

A hydrogen rich, low density liquid, contained within the internal volume of a cylindrical liner, was requested of the Polymers and Coatings Group (MST-7) of the Los Alamos Materials Science Division for one of the last liner driven experiments conducted on the Los Alamos Pegasus facility. The experiment (Fig.1) was a continuation of the Raleigh-Taylor hydrodynamics series of experiments and associated liners that have been described previously.

Salazar, M. A. (Mike A.); Armijo, E. V. (Elfino V.); Anderson, W. E. (Wallace E.); Atchison, W. L. (Walter L.); Bartos, J. J. (Jacob J.); Garcia, F. (Fermin); Randolph, B. (Blaine); Sheppard, M. G. (Maurice G.); Stokes, J. L. (John L.)

2001-01-01T23:59:59.000Z

465

NUMERICAL ANALYSIS OF FLOW FIELDS GENERATED BY ACCELERATING FLAMES  

E-Print Network (OSTI)

NCLPPTH.NCLUMA. ~CLUPA=CL NC CF ~~TCL PT~,NC C~RCT TPJ,PSI,81 $tC3*UPC(I,9',+AT*CTOX*tCl$OPC(1,7ItC2$OPC( l,e,.c~.OCLPPTH=OST eET SCCS5VE C~TCL ~T~S(MST eE > ~. TO ~vE AODTLN

Kurylo, J.

2011-01-01T23:59:59.000Z

466

LIQUID BUTANE FILLED LOAD FOR A LINER DRIVEN PEGASUS EXPERIMENT  

DOE Green Energy (OSTI)

A hydrogen rich, low density liquid, contained within the internal volume of a cylindrical liner, was requested of the Polymers and Coatings Group (MST-7) of the Los Alamos Materials Science Division for one of the last liner driven experiments conducted on the Los Alamos Pegasus facility. The experiment was a continuation of the Raleigh-Taylor hydrodynamics series of experiments and associated liners that have been described previously [1,2].

M.A. SALAZAR; W. ANDERSON; ET AL

2001-06-01T23:59:59.000Z

467

Nonlinear tearing mode interactions and mode locking in reversed field pinches  

SciTech Connect

The nonlinear interaction of a set of tearing instabilities and plasma flow is studied in a cylindrical plasma. An analytic theory of mode locking is developed which includes the effects of the localized electromagnetic torques, plasma inertia and cross-field viscosity. The calculation is specialized for the case of mode locking on the Madison Symmetric Torus (MST) reversed field pinch. In MST plasmas, a set of m = 1 tearing instabilities become phase locked and form a toroidally localized, rotating magnetic disturbance. An evolution equation for the phase velocity of this magnetic disturbance is derived which accounts for two types of electromagnetic torques. The external torques describe the interaction of the tearing modes with static magnetic perturbations located outside the plasma region. The interior torques describe the nonlinear interaction of three tearing modes which satisfy a wave number resonance condition. For conditions typical of MST, the internal torques dominate the external torques, which suggest the nonlinear interaction of tearing instabilities play a prominent role in the momentum degradation and mode locking.

Hegna, C.C.

1996-06-01T23:59:59.000Z

468

A fast spectroscopic diagnostic for the measurement of plasma impurity ion dynamics  

SciTech Connect

A high-resolution spectrometer has been developed and used to measure simultaneously impurity ion temperature and flow velocities in high temperature plasmas with 10 {mu}s temporal resolution (limited by digitization rate). This device is actually a duo-spectrometer: measurements from two different chordal views of the plasma can be made simultaneously via two separate quartz input fiber optic bundles coupled to the entrance slits which are tilted to compensate for line curvature. The dispersed spectra on the exit plane of the duo-spectrometer are coupled via quartz fiber optics to two arrays of 16 photomultiplier tubes each. Measurement made by recording the Doppler broadened and shifted 227.091 nm emission from the CV impurity ions in the MST reversed-field pinch (RFP) plasma have achieved precisions of <6 eV for temperatures of 150 Ev and <0.7 km/s for flow velocities of 6 km/s. Representative results from the MsT RFP indicate that the toroidal flow velocity drops and ion temperature increases during saw tooth events in MST.

Den Hartog, D.J.; Fonck, R.J.

1994-04-01T23:59:59.000Z

469

Thermochemical cyclic system for decomposing H.sub.2 O and/or CO.sub.2 by means of cerium-titanium-sodium-oxygen compounds  

DOE Patents (OSTI)

A thermochemical closed cyclic process for the decomposition of water and/or carbon dioxide to hydrogen and/or carbon monoxide begins with the reaction of ceric oxide (CeO.sub.2), titanium dioxide (TiO.sub.2) and sodium titanate (Na.sub.2 TiO.sub.3) to form sodium cerous titanate (NaCeTi.sub.2 O.sub.6) and oxygen. Sodium cerous titanate (NaCeTi.sub.2 O.sub.6) reacted with sodium carbonate (Na.sub.2 CO.sub.3) in the presence of steam, produces hydrogen. The same reaction, in the absence of steam, produces carbon monoxide. The products, ceric oxide and sodium titanate, obtained in either case, are treated with carbon dioxide and water to produce ceric oxide, titanium dioxide, sodium titanate, and sodium bicarbonate. After dissolving sodium bicarbonate from the mixture in water, the remaining insoluble compounds are used as starting materials for a subsequent cycle. The sodium bicarbonate can be converted to sodium carbonate by heating and returned to the cycle.

Bamberger, Carlos E. (Oak Ridge, TN)

1982-01-01T23:59:59.000Z

470

Thermochemical cyclic system for decomposing H/sub 2/O and/or CO/sub 2/ by means of cerium-titanium-sodium-oxygen compounds  

DOE Patents (OSTI)

A thermochemical closed cyclic process for the decomposition of water and/or carbon dioxide to hydrogen and/or carbon monoxide begins with the reaction of ceric oxide (CeO/sub 2/), titanium dioxide (TiO/sub 2/) and sodium titanate (Na/sub 2/TiO/sub 3/) to form sodium cerous titanate (NaCeTi/sub 2/O/sub 6/) and oxygen. Sodium cerous titanate (NaCeTi/sub 2/O/sub 6/) reacted with sodium carbonate (Na/sub 2/CO/sub 3/) in the presence of steam, produces hydrogen. The same reaction, in the absence of steam, produces carbon monoxide. The products, ceric oxide and sodium titanate, obtained in either case, are treated with carbon dioxide and water to produce ceric oxide, titanium dioxide, sodium titanate, and sodium bicarbonate. After dissolving sodium bicarbonate from the mixture in water, the remaining insoluble compounds are used as starting materials for a subsequent cycle. The sodium bicarbonate can be converted to sodium carbonate by heating and returned to the cycle.

Bamberger, C.E.

1980-04-24T23:59:59.000Z

471

 

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

In this project we propose to synthesize nanosize titanate-based materials that can be optimized for chemical/radiochemical separations, innovative In this project we propose to synthesize nanosize titanate-based materials that can be optimized for chemical/radiochemical separations, innovative medical applications and photochemical-based applications. This project will significantly extend recent work by research team members at SRNL as well as those at Sandia National Laboratories (SNL), the University of Washington (UW), and the Oak Ridge National Laboratory (ORNL). Collectively, our previous work has shown that titanate materials are remarkably effective ion exchange materials for (1) the separation of strontium and actinides from strongly alkaline waste solutions, (2) the separation of a wide variety of metal ions from neutral and weakly acidic solutions, and (3) the delivery of

472

 

NLE Websites -- All DOE Office Websites (Extended Search)

Morgan McCorkle Morgan McCorkle Communications 865.574.7308 ORNL Debuts Titan Supercomputer 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 per

473

Discovery of oxygen in atmosphere could mean life for Saturn's moon Dione  

NLE Websites -- All DOE Office Websites (Extended Search)

Discovery of oxygen in atmosphere could mean life for Saturn's Discovery of oxygen in atmosphere could mean life for Saturn's moon Dione Discovery of oxygen in atmosphere could mean life for Saturn's moon Dione Discovery could mean ingredients for life are abundant on icy space bodies. March 5, 2012 Curiosity rover bears three LANL technologies Inside Titan: This artist's concept shows a possible scenario for the internal structure of Titan, as suggested by data from NASA's Cassini spacecraft. Scientists have been trying to determine what is under Titan's organic-rich atmosphere and icy crust. Data from the radio science experiment make the strongest case yet for a global subsurface ocean, sitting above a subsurface layer of high-pressure ice and a water-infused silicate core. Image credit: A. Tavani Get Expertise

474

Modified cermet fuel electrodes for solid oxide electrochemical cells  

DOE Patents (OSTI)

An exterior porous electrode (10), bonded to a solid oxygen ion conducting electrolyte (13) which is in contact with an interior electrode (14), contains coarse metal particles (12) of nickel and/or cobalt, having diameters from 3 micrometers to 35 micrometers, where the coarse particles are coated with a separate, porous, multiphase layer (17) containing fine metal particles of nickel and/or cobalt (18), having diameters from 0.05 micrometers to 1.75 micrometers and conductive oxide (19) selected from cerium oxide, doped cerium oxide, strontium titanate, doped strontium titanate and mixtures thereof.

Ruka, Roswell J. (Churchill Boro, PA); Spengler, Charles J. (Murrysville, PA)

1991-01-01T23:59:59.000Z

475

High Pressure Hydrogen Materials Compatibility of Piezoelectric Films  

DOE Green Energy (OSTI)

Abstract: Hydrogen is being considered as a next-generation clean burning fuel. However, hydrogen has well known materials issues, including blistering and embrittlement in metals. Piezoelectric materials are used as actuators in hydrogen fuel technology. We present studies of materials compatibility of piezoelectric films in a high pressure hydrogen environment. Absorption of high pressure hydrogen was studied with Elastic Recoil Detection Analysis (ERDA) and Rutherford Back Scattering (RBS) in lead zirconate titanate (PZT) and barium titanate (BTO) thin films. Hydrogen surface degradation in the form of blistering and Pb mixing was also observed.

Alvine, Kyle J.; Shutthanandan, V.; Bennett, Wendy D.; Bonham, Charles C.; Skorski, Daniel C.; Pitman, Stan G.; Dahl, Michael E.; Henager, Charles H.

2010-12-02T23:59:59.000Z

476

Chapter 11. Community analysis-based methods  

Science Conference Proceedings (OSTI)

Microbial communities are each a composite of populations whose presence and relative abundance in water or other environmental samples are a direct manifestation of environmental conditions, including the introduction of microbe-rich fecal material and factors promoting persistence of the microbes therein. As shown by culture-independent methods, different animal-host fecal microbial communities appear distinctive, suggesting that their community profiles can be used to differentiate fecal samples and to potentially reveal the presence of host fecal material in environmental waters. Cross-comparisons of microbial communities from different hosts also reveal relative abundances of genetic groups that can be used to distinguish sources. In increasing order of their information richness, several community analysis methods hold promise for MST applications: phospholipid fatty acid (PLFA) analysis, denaturing gradient gel electrophoresis (DGGE), terminal restriction fragment length polymorphism (TRFLP), cloning/sequencing, and PhyloChip. Specific case studies involving TRFLP and PhyloChip approaches demonstrate the ability of community-based analyses of contaminated waters to confirm a diagnosis of water quality based on host-specific marker(s). The success of community-based MST for comprehensively confirming fecal sources relies extensively upon using appropriate multivariate statistical approaches. While community-based MST is still under evaluation and development as a primary diagnostic tool, results presented herein demonstrate its promise. Coupled with its inherently comprehensive ability to capture an unprecedented amount of microbiological data that is relevant to water quality, the tools for microbial community analysis are increasingly accessible, and community-based approaches have unparalleled potential for translation into rapid, perhaps real-time, monitoring platforms.

Cao, Y.; Wu, C.H.; Andersen, G.L.; Holden, P.A.

2010-05-01T23:59:59.000Z

477

Advances in Materials Science for Environmental and Energy Technologies II  

SciTech Connect

The Materials Science and Technology 2012 Conference and Exhibition (MS&T'12) was held October 7-11, 2012, in Pittsburgh, Pennsylvania. One of the major themes of the conference was Environmental and Energy Issues. Papers from five of the symposia held under that theme are invluded in this volume. These symposia included Materials Issues in Nuclear Waste Management for the 21st Century; Green Technologies for Materials Manufacturing and Processing IV; Energy Storage: Materials, Systems and Applications; Energy Conversion-Photovoltaic, Concentraing Solar Power and Thermoelectric; and Materials Development for Nuclear Applications and Extreme Environments.

Matyas, Dr Josef [Pacific Northwest National Laboratory (PNNL); Ohji, Tatsuki [Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Tec; Liu, Xingbo [West Virginia University, Morgantown; Paranthaman, Mariappan Parans [ORNL; Devanathan, Ram [Pacific Northwest National Laboratory (PNNL); Fox, Kevin [Savannah River National Laboratory (SRNL); Singh, Mrityunjay [NASA-Glenn Research Center, Cleveland; Wong-ng, Winnie [National Institute of Standards and Technology (NIST), Gaithersburg, MD

2013-01-01T23:59:59.000Z

478

Manufacturing Science and Technology: Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

Machining Machining PDF format (236 kb) MS&T's machining group consists of two departments: Manufacturing Processing, and Manufacturing Processes and Services. The two departments team to build, procure, and assemble unique prototype and production hardware with diverse quality requirements. The in-house capability can manufacture hardware ranging from microscopic to proportions measured in feet and tons. The group's outside contacts and resources are almost boundless. This team's expertise includes: precision machining, welding, fabrication and assembly, aircraft quality sheet metal construction, and explosives machining and assembly. The department can manage a variety of activities: design modifications, in-house fabrication, outside shop selection and surveillance and manufacturing records management.

479

Manufacturing Science and Technology: Technologies  

NLE Websites -- All DOE Office Websites (Extended Search)

SEM micrograph of carbon film SEM micrograph of carbon film SEM micrograph of carbon film (marker = 50 microns) Materials Characterization PDF format (139 kb) MS&T provides a broad range of techniques to characterize organic materials. These techniques assist you in understanding and improving the materials and processes used (e.g., encapsulation, adhesion, composites). Capabilities: Thermal Analysis - Determine glass transition temperature (Tg), heat capacity (Cp), heat of cure, curing reaction kinetics, glassy and rubbery modulus, coefficient of thermal expansion, volatile and organic content, and decomposition temperatures Rheological Testing - Characterize the rheological properties of liquids, melts and solids Work of Adhesion - Measure work of adhesion between polymeric

480

Welding Metallurgy and Processing Issues for Joining of Power Sources  

Science Conference Proceedings (OSTI)

Weldability issues with the pertinent alloys have been reviewed and preliminary results of our work on Haynes 25 have been presented. Further results on the mechanical properties and metallography on the EB welds are imminent. Hot-ductility experiments will commence within a few weeks. Aging studies on the effects of heat treatment using the Gleeble are also planned. MST-6 has extensive background in the welding metallurgy of the pertinent alloys. We also have considerable experience with the various welding processes to be used.

Lienert, Thomas J. [Los Alamos National Laboratory; Reardon, Patrick T. [Los Alamos National Laboratory

2012-08-14T23:59:59.000Z

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.


481

Hanford Radiological Protection Support Services Annual Report for 1998  

SciTech Connect

During calendar year (CY) 1998, the Pacific Northwest National Laboratory (PNNL) performed its customary radiological protection support services in support of the U.S. Department of Energy (DOE) Richland Operations OffIce (RL) and the Hanford contractors. These services included: 1) external dosimetry, 2) internal dosimetry, 3) in vivo measurements, 4) radiological records, 5) instrument calibra- tion and evaluation, and 6) calibration of radiation sources traceable to the National Institute of Standards and Technology (MST). The services were provided under a number of projects as summarized here.

DE Bihl; JA MacLellan; ML Johnson; RK Piper; TP Lynch

1999-05-14T23:59:59.000Z

482

Appl. Phys. 18, 271 274 (1979) 9 bySpringer-Verlag1979  

E-Print Network (OSTI)

in thermally depoled La-doped lead zirconate titanate (PLZT) ceramics of composition 8/65/35 and 9/65/35 has on temperature-dependent optical second-harmonic generation (SHG) in ther- mally depoled samples, mainly performed at room temperature, by incomplete ther- mal depoling of the sample and by internal strain. 1

Osnabrück, Universität

483

ing the distribution of those galaxies, the way they clump and spread out, scientists  

E-Print Network (OSTI)

illuminated realms as small as a single molecule and as large as a gamma ray burst. of the Year Agony ex- plosions in the universe: titanic blasts of en- ergy called gamma ray bursts (GRBs). Most notably of black holes and other phenomena in the gamma ray region of the spectrum. And the Wilkinson Microwave

Yildiz, Ahmet

484

Fusion Engineering and Design 23 (1993) 99-113 99 North-Holland  

E-Print Network (OSTI)

Fusion Engineering and Design 23 (1993) 99-113 99 North-Holland Materials analysis of the TITAN-I reversed-field-pinch fusion power core Shahram Sharafat a, Nasr M. Ghoniem a, Patrick I.H. Cooke a,l Rodger Institute of Plasma and Fusion Research, University of California, Los Angeles, CA 90024-1597, USA h General

Ghoniem, Nasr M.

485

Fusion Engineering and Design 23 (1993) 173-200 173 North-Holland  

E-Print Network (OSTI)

Fusion Engineering and Design 23 (1993) 173-200 173 North-Holland The TITAN-II reversed-field-pinch fusion-power-core design Clement P.C. Wong a, Steven P. Grotz h, Farrokh Najmabadi b, James P. Blanchard 'j and Dai-Kai Sze e " General Atomics, San Diego, CA 92186, USA b Institute of Plasma and Fusion

Ghoniem, Nasr M.

486

Fusion Engineering and Design 23 (1993) 81-98 81 North-Holland  

E-Print Network (OSTI)

Fusion Engineering and Design 23 (1993) 81-98 81 North-Holland The TITAN-I Reversed-Field-Pinch fusion-power-core design Farrokh Najmabadi 3, Clement P.C. Wong b, Steven P. Grotz a, Kenneth R. Schultz Steiner d, Dai-Kai Sze e, William P. Duggan d,6 and George O. Orient ~.7 " Institute of Plasma and Fusion

Ghoniem, Nasr M.

487

Fusion Engineering and Design 23 (1993) 69-80 69 North-Holland  

E-Print Network (OSTI)

Fusion Engineering and Design 23 (1993) 69-80 69 North-Holland Introduction and synopsis of the TITAN reversed-field-pinch fusion-reactor study Farrokh Najmabadi a, Robert W. Conn a, Robert A and Fusion Research, Unit'ersity of California, Los Angeles, CA 90024-1597, USA b Los Alamos National

Ghoniem, Nasr M.

488

TEXT UPDATED: 2/15/2012 ADEPT PROJECT  

E-Print Network (OSTI)

Ram, rajeev.ram@hq.doe.gov Project Contact: Gerhard Welsch, gerhard.e.welsch@gmail.com Partner Organization: Titanium Power Technologies LLC PROJECT TITLE: High-Power Titanate Capacitors for Power Electronics ORGANIZATION: Case Western Reserve University (Case Western) LOCATION: Cleveland, OH PROGRAM

Rollins, Andrew M.

489

Sea Fog Research in the United Kingdom and United States: A Historical Essay Including Outlook  

Science Conference Proceedings (OSTI)

A historical review of research on sea fog is presented. The period of interest is essentially the twentieth century, beginning with the celebrated work of G. I. Taylor in the aftermath of the Titanic tragedy. It has been argued that relative ...

J. M. Lewis; D. Kora?in; K. T. Redmond

2004-03-01T23:59:59.000Z

490

Gordon L. Bourns Chairman of the Board and C.E.O.  

E-Print Network (OSTI)

Fuelcell Energy fuel cell, a 65kW Capstone microturbine, two 14 MW Solar Titan turbines with SCR and SCONOx successfully engineered to reduce emissions, off-road equipment (diesel engines of 25 horsepower or greater an accuracy of VOC, NOx , and CO concentrations of 0.1 ppmv and exhaust flow rate within +5 percent. A 300kW

Lyubomirsky, Ilya

491

Process for Making a Ceramic Composition for Immobilization of Actinides  

DOE Patents (OSTI)

Disclosed is a process for making a ceramic composition for the immobilization of actinides, particularly uranium and plutonium. The ceramic is a titanate material comprising pyrochlore, brannerite and rutile. The process comprises oxidizing the actinides, milling the oxides to a powder, blending them with ceramic precursors, cold pressing the blend and sintering the pressed material.

Ebbinghaus, Bartley B.; Van Konynenburg, Richard A.; Vance, Eric R.; Stewart, Martin W.; Walls, Philip A.; Brummond, William Allen; Armantrout, Guy A.; Curtis, Paul G.; Hobson, Beverly F.; Farmer, Joseph; Herman, Connie Cicero; Herman, David Thomas

1999-06-22T23:59:59.000Z

492

Measurements of Cloud Nuclei in the Effluents from Launches of Liquid- and Solid-Fueled Rockets  

Science Conference Proceedings (OSTI)

Airborne measurements of cloud nuclei [cloud condensation nuclei (CCN) and ice nuclei (IN)] were made in the stabilized ground clouds resulting from the launches of a liquid-fueled ATLAS/Centaur rocket and a solid-fueled TITAN III rocket. ...

Edward E. Hindman; Lawrence F. Radke; Mark W. Eltgroth

1982-09-01T23:59:59.000Z

493

PERSISTENT SURVEILLANCE FOR PIPELINE PROTECTION AND THREAT INTERDICTION  

E-Print Network (OSTI)

investment in lab facilities (Omega-EP, Z/PW,NIF and smaller facilities (Titan, Trident Upgrade relevant conditions FIREX-1 ZR and Petawatt NIF/ARC Omega-EP #12;FI benefits from international R&D effortsChallenge is to be ready -- an ignition/gain experiment in 2012 on NIF requires successful sub ignition on Omega EP

494

(Ba,Sr)TiO3 dielectrics for future stacked- capacitor DRAM  

Science Conference Proceedings (OSTI)

Thin films of barium-strontium titanate (Ba,Sr)TiO3 (BSTO) have been investigated for use as a capacitor dielectric for future generations of dynamic random-access memory (DRAM). This paper describes progress made in the preparation of BSTO ...

D. E. Kotecki; J. D. Baniecki; H. Shen; R. B. Laibowitz; K. L. Saenger; J. J. Lian; T. M. Shaw; S. D. Athavale; C. Cabral; P. R. Duncombe; M. Gutsche; G. Kunkel; Y.-J. Park; Y.-Y. Wang; R. Wise

1999-05-01T23:59:59.000Z

495

Method for aqueous radioactive waste treatment  

DOE Patents (OSTI)

Plutonium, strontium, and cesium found in aqueous waste solutions resulting from nuclear fuel processing are removed by contacting the waste solutions with synthetic zeolite incorporating up to about 5 wt % titanium as sodium titanate in an ion exchange system. More than 99.9% of the plutonium, strontium, and cesium are removed from the waste solutions. 3 figures.

Bray, L.A.; Burger, L.L.

1994-03-29T23:59:59.000Z

496

Precipitation-adsorption process for the decontamination of nuclear waste supernates  

DOE Patents (OSTI)

High-level nuclear waste supernate is decontaminated of cesium by precipitation of the cesium and potassium with sodium tetraphenyl boron. Simultaneously, strontium-90 is removed from the waste supernate sorption of insoluble sodium titanate. The waste solution is then filtered to separate the solution decontaminated of cesium and strontium.

Lee, L.M.; Kilpatrick, L.L.

1982-05-19T23:59:59.000Z

497

Enviropower hot gas desulfurization pilot  

SciTech Connect

The objectives of the project are to develop and demonstrate (1) hydrogen sulfide removal using regenerable zinc titanate sorbent in pressurized fluidized bed reactors, (2) recovery of the elemental sulfur from the tail-gas of the sorbent regenerator and (3) hot gas particulate removal system using ceramic candle filters. Results are presented on pilot plant design and testing and modeling efforts.

Ghazanfari, R.; Feher, G.; Konttinen, J.; Ghazanfari, R.; Lehtovaara, A.; Mojtahedi, W.

1994-11-01T23:59:59.000Z

498

Bridging the analytical gap between distributed cognition and actor network theory using a tool for information trajectory analysis  

Science Conference Proceedings (OSTI)

Motivation -- Distributed Cognition (DCog) and Actor-Network Theory (ANT) are two related perspectives which can be adopted when studying the relationship between humans and artefacts in collaborative environments. Although these perspectives ... Keywords: TITAN, actor-network theory, distributed cognition, information trajectories, research tool

Stuart Moran; Keiichi Nakata; Satoru Inoue

2012-08-01T23:59:59.000Z

499

Aerosols and Trace Gases in the Effluents Produced by the Launch of Large Liquid- and Solid-Fueled Rockets  

Science Conference Proceedings (OSTI)

Airborne measurements over periods of several hours were made in the effluents that collected in the boundary layer in the form of “ground clouds” when an Atlas/Centaur and Titan III rocket were launched at night-time from Cape Canaveral, ...

Lawrence F. Radke; Peter V. Hobbs; Dean A. Hegg

1982-09-01T23:59:59.000Z

500

Physical and chemical properties of dust produced in a N{sub 2}-CH{sub 4} RF plasma discharge  

Science Conference Proceedings (OSTI)

Titan's atmospheric chemistry is simulated using a Capacitively Coupled Plasma discharge produced in a N{sub 2}-CH{sub 4} mixture. The produced solid particles are analysed ex-situ. Chemical properties are deduced from: elemental composition, FTIR and LTQ-Orbitrap mass spectrometer. Optical properties are deduced from reflectivity in visible and IR range.

Ouni, F.; Alcouffe, G.; Szopa, C.; Carrasco, N.; Cernogora, G. [Universite de Versailles St Quentin, Service d'Aeronomie, BP 3-91371 Verrieres le Buisson (France); Adande, G.; Thissen, R.; Quirico, E.; Brissaud, O. [LPG-BP 5338041 Grenoble Cedex 9 (France); Schmitz-Afonso, I.; Laprevote, O. [ICSN-CNRS Avenue de la Terrasse, 91198 Gif sur Yvette (France)

2008-09-07T23:59:59.000Z