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Note: This page contains sample records for the topic "location concentration nitrate" from the National Library of EnergyBeta (NLEBeta).
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1

Application of municipal sludge (biosolids) for agricultural purposes and groundwater nitrate concentrations  

SciTech Connect

One of the more popular means of handling sewage sludge from municipalities is its application to agricultural lands. A variety of crops are grown with the expectation that plants will utilize the nitrogen. However, a complex scenario allows some of the nitrate to move below root depth and eventually to the water table at depths of up to 30 ft. The City of Raleigh, NC injects sewage sludge ( residuals'', biosolids'') into soils derived largely from the Rolesville Granite in an area of typical rolling Piedmont topography. A 1975 background study of part of the site demonstrated differences in groundwater quality between areas farmed over a period of years and areas dominated by second-growth pine and harwood forests. Groundwater quality data collected semiannually between 1982 and 1988 show gradual buildup of nitrate in some fields; in others groundwater quality apparently remains unaffected by nitrate from the sludge. Monitoring well placement may play a role in these differences. Minimum time from the sludge application to an increase in groundwater nitrate is from 9 to 12 months. An ongoing study of a 12-acre field which lay fallow for a number of years prior to sludge application in 1990 demonstrates that some nitrate does move downward fairly rapidly, its movement being recorded in both the saprolite and groundwater. Comparison of nitrate content of groundwater from monitoring wells at a nearby dairy farm shows that normal agricultural practices may also increase the nitrate content of the shallow groundwater.

Welby, C.W. (North Carolina State Univ., Raleigh, NC (United States). Dept. of Marine, Earth and Atmospheric Sciences)

1993-03-01T23:59:59.000Z

2

Effect of nanoparticle dispersion on specific heat capacity of a binary nitrate salt eutectic for concentrated solar power applications  

Science Journals Connector (OSTI)

In this study we investigate nanoparticle dispersions in a molten binary nitrate salt eutectic. It has been recently reported that nanoparticle dispersions in molten salt mixtures can significantly enhance the specific heat capacity of the salt mixtures. These molten salt mixtures can be used as heat transfer fluid (HTF)/thermal energy storage (TES) in a concentrated solar power (CSP) plant and enhancing their specific heat capacity can significantly reduce the cost of electricity produced by CSP. However, the mechanism for the enhanced specific heat capacity is still under investigation and has not been clearly explained. In this paper, we investigate the effect of nanoparticle size on the specific heat capacity of nanoparticle/molten salt eutectic mixture. Four different sizes of nanoparticles (5 nm, 10 nm, 30 nm, and 60 nm) were dispersed in a molten nitrate salt eutectic at 1% concentration by weight. The molten nitrate salt eutectic consisted of sodium nitrate (NaNO3) and potassium nitrate (KNO3) at compositions of 60% and 40% by weight. A modulated differential scanning calorimeter (MDSC) was employed to measure the specific heat capacity of the pure molten salt eutectic and the nanomaterials (pure molten salt eutectic mixed with nanoparticles). The specific heat capacity of the nanomaterials was enhanced with increase of nanoparticle size. The observed enhancement was found to be 8% for 5 nm, 12% for 10 nm, 19% for 30 nm and 27% for the 60 nm. Material characterization analyses were carried out to investigate microstructural change of the nanomaterials. It was observed that special nanostructures were formed by molten salt mixtures in the nanomaterial samples and the amount of observed nanostructures was increased with the measured specific heat capacity. This indicates that nanostructures formed in the nanomaterials may be responsible for the enhanced specific heat capacity of the nanomaterials.

Bharath Dudda; Donghyun Shin

2013-01-01T23:59:59.000Z

3

Locating Nearby Sources of Air Pollution by Nonparametric Regression of Atmospheric Concentrations on Wind Direction  

E-Print Network (OSTI)

Locating Nearby Sources of Air Pollution by Nonparametric Regression of Atmospheric Concentrations. #12;1 Locating Nearby Sources of Air Pollution by Nonparametric Regression of Atmospheric. * Corresponding author. Submitted to Atmospheric Environment July, 2001. Abstract The relationship

Washington at Seattle, University of

4

Effects of elevated CO2 concentration on growth and water usage of tomato seedlings under different ammonium/nitrate ratios  

Science Journals Connector (OSTI)

Increasing atmospheric CO2 concentration is generally expected to enhance photosynthesis and growth of agricultural C3 vegetable crops, and therefore results in an increase in crop yield. However, little is known about the combined effect of elevated CO2 and N species on plant growth and development. Two growth-chamber experiments were conducted to determine the effects of NH4+/NO3? ratio and elevated CO2 concentration on the physiological development and water use of tomato seedlings. Tomato was grown for 45 d in containers with nutrient solutions varying in NH4+/NO3? ratios and CO2 concentrations in growth chambers. Results showed that plant height, stem thickness, total dry weight, dry weight of the leaves, stems and roots, G value (total plant dry weight/seedling days), chlorophyll content, photosynthetic rate, leaf-level and whole plant-level water use efficiency and cumulative water consumption of tomato seedlings were increased with increasing proportion of NO3? in nutrient solutions in the elevated CO2 treatment. Plant biomass, plant height, stem thickness and photosynthetic rate were 67%, 22%, 24% and 55% higher at elevated CO2 concentration than at ambient CO2 concentration, depending on the values of NH4+/NO3? ratio. These results indicated that elevating CO2 concentration did not mitigate the adverse effects of 100% NH4+-N (in nutrient solution) on the tomato seedlings. At both CO2 levels, NH4+/NO3? ratios of nutrient solutions strongly influenced almost every measure of plant performance, and nitrate-fed plants attained a greater biomass production, as compared to ammonium-fed plants. These phenomena seem to be related to the coordinated regulation of photosynthetic rate and cumulative water consumption of tomato seedlings.

Juan LI; Jian-min ZHOU; Zeng-qiang DUAN

2007-01-01T23:59:59.000Z

5

The influence of dose-rest cycles on the nitrate concentration of deep percolate below septic fields  

E-Print Network (OSTI)

(1970), however, observed that the introduction of oxygen into an otherwise anaerobic system containing adsorbed ammonium caused the formation of nitrates in the presence of nitrifying bacteria. Bouwer (1970) stated that sewage contains a large... quantity of nitrogen, most of which is in the ammonium form. Gillham and Webber (1969) showed that barnyards, which contained livestock manure, could be leached by rainwater and contribute up to 90% of the nitrates found in the aquifer below the yard...

Allison, John Bryan

1976-01-01T23:59:59.000Z

6

Transmission Benefits of Co-Locating Concentrating Solar Power and Wind  

SciTech Connect

In some areas of the U.S. transmission constraints are a limiting factor in deploying new wind and concentrating solar power (CSP) plants. Texas is an example of one such location, where the best wind and solar resources are in the western part of the state, while major demand centers are in the east. The low capacity factor of wind is a compounding factor, increasing the relative cost of new transmission per unit of energy actually delivered. A possible method of increasing the utilization of new transmission is to co-locate both wind and concentrating solar power with thermal energy storage. In this work we examine the benefits and limits of using the dispatachability of thermal storage to increase the capacity factor of new transmission developed to access high quality solar and wind resources in remote locations.

Sioshansi, R.; Denholm, P.

2012-03-01T23:59:59.000Z

7

The effect of penetration factor, deposition, and environmental factors on the indoor concentration of PM2.5 sulfate, nitrate, and carbon  

SciTech Connect

Indoor exposure to particles of outdoor origin constitutes an important exposure pathway. We conducted an intensive set of indoor particle measurements in an unoccupied house under differing operating conditions. Real-time measurements were conducted both indoors and outdoors, including PM2.5 nitrate, sulfate, and carbon. Because the time-scale of the fluctuations in outdoor particle concentrations and meteorological conditions are often similar to the time constant for building air exchange, a steady state concentration may never be reached. The time-series experimental data were used to determine the effect of changes in air exchange rate and indoor/outdoor temperature and relative humidity differences on indoor particle concentrations. A multivariate regression was performed to investigate the difference between measured indoor concentrations and results from a simple time-dependent physical model. Environmental conditions had a significant effect on indoor concentrations of all three PM2.5 species, but did not explain all of the model variation.

Thatcher, T.L.; Lunden, M.M.; Sextro, R.G.; Hering, S.; Brown, N.J.

2002-04-15T23:59:59.000Z

8

Thermochemical nitrate destruction  

DOE Patents (OSTI)

A method is disclosed for denitrification of nitrates and nitrates present in aqueous waste streams. The method comprises the steps of (1) identifying the concentration nitrates and nitrites present in a waste stream, (2) causing formate to be present in the waste stream, (3) heating the mixture to a predetermined reaction temperature from about 200.degree. C. to about 600.degree. C., and (4) holding the mixture and accumulating products at heated and pressurized conditions for a residence time, thereby resulting in nitrogen and carbon dioxide gas, and hydroxides, and reducing the level of nitrates and nitrites to below drinking water standards.

Cox, John L. (Richland, WA); Hallen, Richard T. (Richland, WA); Lilga, Michael A. (Richland, WA)

1992-01-01T23:59:59.000Z

9

Nitrate reduction  

DOE Patents (OSTI)

Nitrates are reduced to nitrogen gas by contacting the nitrates with a metal to reduce the nitrates to nitrites which are then contacted with an amide to produce nitrogen and carbon dioxide or acid anions which can be released to the atmosphere. Minor amounts of metal catalysts can be useful in the reduction of the nitrates to nitrites. Metal salts which are formed can be treated electrochemically to recover the metals.

Dziewinski, Jacek J. (Los Alamos, NM); Marczak, Stanislaw (Los Alamos, NM)

2000-01-01T23:59:59.000Z

10

Thermochemical nitrate destruction  

DOE Patents (OSTI)

A method is disclosed for denitrification of nitrates and nitrites present in aqueous waste streams. The method comprises the steps of (1) identifying the concentration nitrates and nitrites present in a waste stream, (2) causing formate to be present in the waste stream, (3) heating the mixture to a predetermined reaction temperature from about 200 C to about 600 C, and (4) holding the mixture and accumulating products at heated and pressurized conditions for a residence time, thereby resulting in nitrogen and carbon dioxide gas, and hydroxides, and reducing the level of nitrates and nitrites to below drinking water standards.

Cox, J.L.; Hallen, R.T.; Lilga, M.A.

1992-06-02T23:59:59.000Z

11

Purification of alkali metal nitrates  

DOE Patents (OSTI)

A process is disclosed for removing heavy metal contaminants from impure alkali metal nitrates containing them. The process comprises mixing the impure nitrates with sufficient water to form a concentrated aqueous solution of the impure nitrates, adjusting the pH of the resulting solution to within the range of between about 2 and about 7, adding sufficient reducing agent to react with heavy metal contaminants within said solution, adjusting the pH of the solution containing reducing agent to effect precipitation of heavy metal impurities and separating the solid impurities from the resulting purified aqueous solution of alkali metal nitrates. The resulting purified solution of alkali metal nitrates may be heated to evaporate water therefrom to produce purified molten alkali metal nitrate suitable for use as a heat transfer medium. If desired, the purified molten form may be granulated and cooled to form discrete solid particles of alkali metal nitrates.

Fiorucci, Louis C. (Hamden, CT); Gregory, Kevin M. (Woodridge, IL)

1985-05-14T23:59:59.000Z

12

California GAMA Special Study: An isotopic and dissolved gas investigation of nitrate source and transport to a public supply well in California's Central Valley  

SciTech Connect

This study investigates nitrate contamination of a deep municipal drinking water production well in Ripon, CA to demonstrate the utility of natural groundwater tracers in constraining the sources and transport of nitrate to deep aquifers in the Central Valley. The goal of the study was to investigate the origin (source) of elevated nitrate and the potential for the deep aquifer to attenuate anthropogenic nitrate. The site is ideal for such an investigation. The production well is screened from 165-325 feet below ground surface and a number of nearby shallow and deep monitoring wells were available for sampling. Furthermore, potential sources of nitrate contamination to the well had been identified, including a fertilizer supply plant located approximately 1000 feet to the east and local almond groves. A variety of natural isotopic and dissolved gas tracers including {sup 3}H-{sup 3}He groundwater age and the isotopic composition of nitrate are applied to identify nitrate sources and to characterize nitrate transport. An advanced method for sampling production wells is employed to help identify contaminant contributions from specific screen intervals. Nitrate transport: Groundwater nitrate at this field site is not being actively denitrified. Groundwater parameters indicate oxic conditions, the dissolved gas data shows no evidence for excess nitrogen as the result of denitrification, and nitrate-N and -O isotope compositions do not display patterns typical of denitrification. Contaminant nitrate source: The ambient nitrate concentration in shallow groundwater at the Ripon site ({approx}12 mg/L as nitrate) is typical of shallow groundwaters affected by recharge from agricultural and urban areas. Nitrate concentrations in Ripon City Well 12 (50-58 mg/L as nitrate) are significantly higher than these ambient concentrations, indicating an additional source of anthropogenic nitrate is affecting groundwater in the capture zone of this municipal drinking water well. This study provides two new pieces of evidence that the Ripon Farm Services Plant is the source of elevated nitrate in Ripon City Well 12. (1) Chemical mass balance calculations using nitrate concentration, nitrate isotopic composition, and initial tritium activity all indicate that that the source water for elevated nitrate to Ripon City Well 12 is a very small component of the water produced by City Well 12 and thus must have extremely high nitrate concentration. The high source water nitrate concentration ({approx}1500 mg/L as nitrate) required by these mass balance calculations precludes common sources of nitrate such as irrigated agriculture, dairy wastewater, and septic discharge. Shallow groundwater under the Ripon Farm Services RFS plant does contain extremely high concentrations of nitrate (>1700 mg/L as nitrate). (2) Nitrogen and oxygen isotope compositions of nitrate indicate that the additional anthropogenic nitrate source to Ripon City Well 12 is significantly enriched in {delta}{sup 18}O-NO{sub 3}, an isotopic signature consistent with synthetic nitrate fertilizer, and not with human or animal wastewater discharge (i.e. dairy operations, septic system discharge, or municipal wastewater discharge), or with organic fertilizer. Monitoring wells on and near the RFS plant also have high {delta}{sup 18}O-NO{sub 3}, and the plant has handled and stored synthetic nitrate fertilizer that will have this isotopic signature. The results described here highlight the complexity of attributing nitrate found in long screened, high capacity wells to specific sources. In this case, the presence of a very high concentration source near the well site combined with sampling using multiple isotopic tracer techniques and specialized depth-specific techniques allowed fingerprinting of the source in the mixed-age samples drawn from the production well.

Singleton, M J; Moran, J E; Esser, B K; Roberts, S K; Hillegonds, D J

2010-04-14T23:59:59.000Z

13

Concentration of remote-handled, transuranic, sodium nitrate-based sludge using agitated thin-film evaporators  

SciTech Connect

The Waste Handling and Packaging Plant (WHPP) is being designed at Oak Ridge National Laboratory (ORNL) to prepared transuranic waste for final disposal. Once operational, this facility will process, package, and certify remote-handled transuranic waste for ultimate shipment and disposal at the Waste Isolation Pilot Plant (WIPP) in Carlsbad, New Mexico. One of the wastes that will be handled at WHIPP is the transuranic sludge currently stored at ORNL in eight 50,000-gal underground tanks. The use of an Agitated Thin-Film Evaporator (ATFE) for concentration of this waste is being investigated. Tests have shown that the ATFE can be used to produce a thick slurry, a powder, or a fused salt. A computer model developed at the Savannah River Plant (SRP) to simulate the operation of ATFE's on their waste is being modified for use on the ORNL transuranic sludge. This paper summarizes the results of the test with the ATFEs to date, discusses the changes in the SRP model necessary to use this model with the ORNL waste, and compares the results of the model with the actual data taken from the operation of ATFEs at vendors' test facilities. 8 refs., 1 fig., 3 tabs.

Walker, J.F. Jr.; Youngblood, E.L.; Berry, J.B. (Oak Ridge National Lab., TN (USA)); Pen, Ben-Li (Institute of Nuclear Energy Research, Lung-Tan (Taiwan))

1991-01-01T23:59:59.000Z

14

Ammonium Concentrations in Produced Waters from a Mesothermic Oil Field Subjected to Nitrate Injection Decrease through Formation of Denitrifying Biomass and Anammox Activity  

Science Journals Connector (OSTI)

...sulfate- and nitrate-reducing bacteria from an oil field in Argentina. Appl. Environ. Microbiol. 74: 4324-4335. 12 Haveman...injection, p. 370-388. In J. D. Wall et al. (ed.), Bioenergy. ASM Press, Washington, DC. 39 Voordouw, G., A. A...

Sabrina L. Cornish Shartau; Marcy Yurkiw; Shiping Lin; Aleksandr A. Grigoryan; Adewale Lambo; Hyung-Soo Park; Bart P. Lomans; Erwin van der Biezen; Mike S. M. Jetten; Gerrit Voordouw

2010-06-18T23:59:59.000Z

15

Locating interfaces in vertically-layered materials and determining concentrations in mixed materials utilizing acoustic-impedance measurements. [Patent application  

DOE Patents (OSTI)

Measurement of the relative and actual value of acoustic characteristic impedances of an unknown substance, location of the interfaces of vertically-layered materials, and the determination of the concentration of a first material mixed in a second material are presented. A highly damped ultrasonic pulse is transmitted into one side of a reference plate, such as a tank wall, where the other side of the reference plate is in physical contact with the medium to be measured. The amplitude of a return signal, which is the reflection of the transmitted pulse from the interface between the other side of the reference plate and the medium, is measured. The amplitude value indicates the acoustic characteristic impedance of the substance relative to that of the reference plate or relative to that of other tested materials. Discontinuities in amplitude with repeated measurements for various heights indicate the location of interfaces in vertically-layered materials. Standardization techniques permit the relative acoustic characteristic impedance of a substance to be converted to an actual value. Calibration techniques for mixtures permit the amplitude to be converted to the concentration of a first material mixed in a second material.

Not Available

1981-06-10T23:59:59.000Z

16

Locating interfaces in vertically-layered materials and determining concentrations in mixed materials utilizing acoustic impedance measurements  

DOE Patents (OSTI)

Measurement of the relative and actual value of acoustic characteristic impedances of an unknown substance, location of the interfaces of vertically-layered materials, and the determination of the concentration of a first material mixed in a second material are disclosed. A highly damped ultrasonic pulse is transmitted into one side of a reference plate, such as a tank wall, where the other side of the reference plate is in physical contact with the medium to be measured. The amplitude of a return signal, which is the reflection of the transmitted pulse from the interface between the other side of the reference plate and the medium, is measured. The amplitude value indicates the acoustic characteristic impedance of the substance relative to that of the reference plate or relative to that of other tested materials. Discontinuities in amplitude with repeated measurements for various heights indicate the location of interfaces in vertically-layered materials. Standardization techniques permit the relative acoustic characteristic impedance of a substance to be converted to an actual value. Calibration techniques for mixtures permit the amplitude to be converted to the concentration of a first material mixed in a second material. 6 figs.

Langlois, G.N.

1983-09-13T23:59:59.000Z

17

Locating interfaces in vertically-layered materials and determining concentrations in mixed materials utilizing acoustic impedance measurements  

DOE Patents (OSTI)

Measurement of the relative and actual value of acoustic characteristic impedances of an unknown substance, location of the interfaces of vertically-layered materials, and the determination of the concentration of a first material mixed in a second material. A highly damped ultrasonic pulse is transmitted into one side of a reference plate, such as a tank wall, where the other side of the reference plate is in physical contact with the medium to be measured. The amplitude of a return signal, which is the reflection of the transmitted pulse from the interface between the other side of the reference plate and the medium, is measured. The amplitude value indicates the acoustic characteristic impedance of the substance relative to that of the reference plate or relative to that of other tested materials. Discontinuities in amplitude with repeated measurements for various heights indicate the location of interfaces in vertically-layered materials. Standardization techniques permit the relative acoustic characteristic impedance of a substance to be converted to an actual value. Calibration techniques for mixtures permit the amplitude to be converted to the concentration of a first material mixed in a second material.

Langlois, Gary N. (Richland, WA)

1983-09-13T23:59:59.000Z

18

Scandium nitrate-nitric acid-water-tributyl phosphate system. III. IR spectra of scandium extracts from concentrated nitric acid solutions  

SciTech Connect

Equilibrium organic phases in extraction systems consisting of tributyl phosphate (TBP) (neat or 1 M in CCl{sub 4}) and 8-12 M nitric acid containing scandium or scandium-free have been studied by IR spectroscopy. Extracted complex contains 3, 4, or 5 nitric acid molecules per Sc atom in the case of extraction from 8.3, 10.9, and 12.2 M HNO{sub 3}, respectively, and corresponds to the formula Sc(NO{sub 3}){sub 3}{center_dot}mHNO{sub 3}{center_dot}3TBP. Nitric acid molecules are incorporated into extracted complex via H-bond between oxygen atom of coordinated nitrate ion and acid proton.

Nikitina, G.P.; Egorova, V.P.; Listopadov, A.A. [Khlopin Radium Institute, St. Petersburg (Russian Federation)] [and others

1995-03-01T23:59:59.000Z

19

Nitrate removal from drinking water -- Review  

SciTech Connect

Nitrate concentrations in surface water and especially in ground water have increased in Canada, the US, Europe, and other areas of the world. This trend has raised concern because nitrates cause methemoglobiinemia in infants. Several treatment processes including ion exchange, biological denitrification, chemical denitrification, reverse osmosis, electrodialysis, and catalytic denitrification can remove nitrates from water with varying degrees of efficiency, cost, and ease of operation. Available technical data, experience, and economics indicate that ion exchange and biological denitrification are more acceptable for nitrate removal than reverse osmosis. Ion exchange is more viable for ground water while biological denitrification is the preferred alternative for surface water. This paper reviews the developments in the field of nitrate removal processes.

Kapoor, A.; Viraraghavan, T. [Univ. of Regina, Saskatchewan (Canada)

1997-04-01T23:59:59.000Z

20

A nitrate sink in estuaries?  

Science Journals Connector (OSTI)

and d15N and d18O of nitrate along the salinity gradient in the estuary of the river Elbe, one of the largest German rivers discharging into the North Sea. Nitrate ...

2008-06-04T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Application of a modified denitrifying bacteria method for analyzing groundwater and vadose zone pore water nitrate at the Hanford Site, WA, USA.  

E-Print Network (OSTI)

the Hanford Site, WA, USA. Woods, Katharine N. ; Singleton,reside at DOE sites across the USA. Nitrate concentrations >

Woods, Katharine N.; Singleton, Michael J.; Conrad, Mark

2003-01-01T23:59:59.000Z

22

NITRATE DESTRUCTION LITERATURE SURVEY AND EVALUATION CRITERIA  

SciTech Connect

This report satisfies the initial phase of Task WP-2.3.4 Alternative Sodium Recovery Technology, Subtask 1; Develop Near-Tank Nitrate/Nitrite Destruction Technology. Some of the more common anions in carbon steel waste tanks at SRS and Hanford Site are nitrate which is corrosive, and nitrite and hydroxide which are corrosion inhibitors. At present it is necessary to periodically add large quantities of 50 wt% caustic to waste tanks. There are three primary reasons for this addition. First, when the contents of salt tanks are dissolved, sodium hydroxide preferentially dissolves and is removed. During the dissolution process the concentration of free hydroxide in the tank liquid can decrease from 9 M to less than 0.2 M. As a result, roughly half way through the dissolution process large quantities of sodium hydroxide must be added to the tank to comply with requirements for corrosion control. Second, hydroxide is continuously consumed by reaction with carbon dioxide which occurs naturally in purge air used to prevent buildup of hydrogen gas inside the tanks. The hydrogen is generated by radiolysis of water. Third, increasing the concentration of hydroxide increases solubility of some aluminum compounds, which is desirable in processing waste. A process that converts nitrate and nitrite to hydroxide would reduce certain costs. (1) Less caustic would be purchased. (2) Some of the aluminum solid compounds in the waste tanks would become more soluble so less mass of solids would be sent to High Level Vitrification and therefore it would be not be necessary to make as much expensive high level vitrified product. (3) Less mass of sodium would be fed to Saltstone at SRS or Low Level Vitrification at Hanford Site so it would not be necessary to make as much low level product. (4) At SRS less nitrite and nitrate would be sent to Defense Waste Processing Facility (DWPF) so less formic acid would be consumed there and less hydrogen gas would be generated. This task involves literature survey of technologies to perform the nitrate to hydroxide conversion, selection of the most promising technologies, preparation of a flowsheet and design of a system. The most promising technologies are electrochemical reduction of nitrates and chemical reduction with hydrogen or ammonia. The primary reviewed technologies are listed and they aredescribed in more detail later in the report: (1) Electrochemical destruction; (2) Chemical reduction with agents such as ammonia, hydrazine or hydrogen; (3) Hydrothermal reduction process; and (4) Calcination. Only three of the technologies on the list have been demonstrated to generate usable amounts of caustic; electrochemical reduction and chemical reduction with ammonia, hydrazine or hydrogen and hydrothermal reduction. Chemical reduction with an organic reactant such as formic acid generates carbon dioxide which reacts with caustic and is thus counterproductive. Treatment of nitrate with aluminum or other active metals generates a solid product. High temperature calcination has the potential to generate sodium oxide which may be hydrated to sodium hydroxide, but this is unproven. The following criteria were developed to evaluate the most suitable option. The numbers in brackets after the criteria are relative weighting factors to account for importance: (1) Personnel exposure to radiation for installation, routine operation and maintenance; (2) Non-radioactive safety issues; (3) Whether the technology generates caustic and how many moles of caustic are generated per mole of nitrate plus nitrite decomposed; (4) Whether the technology can handle nitrate and nitrite at the concentrations encountered in waste; (5) Maturity of technology; (6) Estimated annual cost of operation (labor, depreciation, materials, utilities); (7) Capital cost; (8) Selectivity to nitrogen as decomposition product (other products are flammable and/or toxic); (9) Impact of introduced species; (10) Selectivity for destruction of nitrate vs. nitrite; and (11) Cost of deactivation and demolition. Each technology was given a score from one

Steimke, J.

2011-02-01T23:59:59.000Z

23

Detonation of Ammonium Nitrate Fertilizer  

Science Journals Connector (OSTI)

Detonation of Ammonium Nitrate Fertilizer ... charge of the fertilizer enclosed in ¼-inch Shelby seamless tubing, 3 inches in diameter and 20 inches in length, detonated with extreme violence. ...

1947-07-28T23:59:59.000Z

24

Thorium Nitrate Stockpile--From Here to Eternity  

SciTech Connect

The Defense National Stockpile Center (DNSC), a field level activity of the Defense Logistics Agency (DLA) has stewardship of a stockpile of thorium nitrate that has been in storage for decades. The stockpile is made up of approximately 3.2 million kg (7 million lb) of thorium nitrate crystals (hydrate form) stored at two depot locations in the United States. DNSC sought technical assistance from Oak Ridge National Laboratory (ORNL) to define and quantify the management options for the thorium nitrate stockpile. This paper describes methodologies and results comprising the work in Phase 1 and Phase 2. The results allow the DNSC to structure and schedule needed tasks to ensure continued safe long-term storage and/or phased disposal of the stockpile.

Hermes, W. H.; Hylton, T. D.; Mattus, C.H.; Storch, S. N.; Singley, P.S.; Terry. J. W.; Pecullan, M.; Reilly, F. K.

2003-02-26T23:59:59.000Z

25

A Novel Chemical Nitrate Destruction Process  

SciTech Connect

Nitrates represent one of the most significant pollutant discharged to the Baltic Sea by the Sliiamae hydrometallurgical plant. This article contains a brief overview of the existing nitrate destruction technologies followed by the description of a new process developed by the authors. The new chemical process for nitrate destruction is cost effective and simple to operate. It converts the nitrate to nitrogen gas which goes to the atmosphere.

Dziewinski, J.; Marczak, S.

1999-03-01T23:59:59.000Z

26

Using Regional Data and Building Leakage to Assess Indoor Concentrations of  

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

Using Regional Data and Building Leakage to Assess Indoor Concentrations of Using Regional Data and Building Leakage to Assess Indoor Concentrations of Particles of Outdoor Origin Title Using Regional Data and Building Leakage to Assess Indoor Concentrations of Particles of Outdoor Origin Publication Type Journal Article Year of Publication 2007 Authors Hering, Susanne V., Melissa M. Lunden, Marc L. Fischer, Thomas W. Kirchstetter, Tracy L. Thatcher, and Nancy J. Brown Journal Aerosol Science and Technology Volume 41 Pagination 639-654 Abstract Time-resolved fine particle concentrations of nitrate, sulfate, and black carbon were examined to assess the appropriateness of using regional data and calculated air exchange rates to model indoor concentrations of particles from outdoor sources. The data set includes simultaneous, sub-hourly aerosol composition measurements at three locations: a regional monitoring site in Fresno, California, inside of an unoccupied residence in Clovis, California, located 6 km northeast of the regional site, and immediately outside of this same residence. Indoor concentrations of PM2.5 nitrate, sulfate, and black carbon were modeled using varying sets of inputs to determine the influence of three factors on model accuracy: the constraints of the simplified indoor-outdoor model, measured versus modeled air exchange rates, and local versus regional outdoor measurements.

27

Life Cycle Assessment of a Parabolic Trough Concentrating Solar Power Plant and Impacts of Key Design Alternatives: Preprint  

SciTech Connect

Climate change and water scarcity are important issues for today's power sector. To inform capacity expansion decisions, hybrid life cycle assessment is used to evaluate a reference design of a parabolic trough concentrating solar power (CSP) facility located in Daggett, California, along four sustainability metrics: life cycle greenhouse gas (GHG) emissions, water consumption, cumulative energy demand (CED), and energy payback time (EPBT). This wet-cooled, 103 MW plant utilizes mined nitrate salts in its two-tank, thermal energy storage (TES) system. Design alternatives of dry-cooling, a thermocline TES, and synthetically-derived nitrate salt are evaluated. During its life cycle, the reference CSP plant is estimated to emit 26 g CO2eq per kWh, consume 4.7 L/kWh of water, and demand 0.40 MJeq/kWh of energy, resulting in an EPBT of approximately 1 year. The dry-cooled alternative is estimated to reduce life cycle water consumption by 77% but increase life cycle GHG emissions and CED by 8%. Synthetic nitrate salts may increase life cycle GHG emissions by 52% compared to mined. Switching from two-tank to thermocline TES configuration reduces life cycle GHG emissions, most significantly for plants using synthetically-derived nitrate salts. CSP can significantly reduce GHG emissions compared to fossil-fueled generation; however, dry-cooling may be required in many locations to minimize water consumption.

Heath, G. A.; Burkhardt, J. J.; Turchi, C. S.

2011-09-01T23:59:59.000Z

28

Role of methyl nitrate in plasma exhaust treatment  

SciTech Connect

There is growing interest in the use of a nonthermal plasma combined with a catalyst for NO{sub x} removal from diesel engine exhaust streams. Such exhaust streams contain excess oxygen (typically 6--10%), low concentrations of hydrocarbons (typically 100--1,000 ppm), and significant concentrations of water (typically 5--12%). Conversion of NO{sub x} to environmentally acceptable compounds, without requiring a scrubber or an added reductant, is the desired end result. In their research the authors observe the formation of substantial amounts of methyl nitrate (CH{sub 3}ONO{sub 2}) in the plasma-catalyst system. CH{sub 3}ONO{sub 2} was prepared and added to the gas blend on test equipment simulating a diesel exhaust gas. A dielectric barrier plasma discharge was followed by a zeolite-based catalyst. Methyl nitrate introduced upstream of the plasma discharge is largely unreacted upon passing through the plasma. CH{sub 3}ONO{sub 2} arriving at the catalyst is converted to methanol and NO{sub 2}. While methyl nitrate was shown to be formed in this system, it is not a significant intermediate in the mechanism of conversion of NO{sub x} to nitrogen.

Hoard, J.W.; Wallington, T.J.; Ball, J.C.; Hurley, M.D.; Wodzisz, K.; Balmer, M.L.

1999-10-01T23:59:59.000Z

29

Nitrates and Prussic Acid in Forages  

E-Print Network (OSTI)

When nitrates and prussic acid accumulate in forage, the feed may not be safe for livestock consumption. Learn the symptoms of nitrate and prussic acid poisoning and which plants are most likely to pose a risk to livestock. Also learn sampling...

Provin, Tony; Pitt, John L.

2003-01-06T23:59:59.000Z

30

Interaction of watershed scale and pollutant transport pathways on pollutant concentrations in rivers  

SciTech Connect

Extensive studies of pollutant concentrations during both storm runoff events and non-storm periods have been underway in Ohio tributaries to lake Erie since 1974. More than 60,000 samples have been collected using automatic samplers located at US Geological Survey stream gauging stations. Drainage areas at the collection stations range from 11 km{sup 2} to 16,400 km{sup 2}. Samples have been analyzed for suspended sediments, various particulate pollutants attached to suspended sediments, current generation herbicides, nitrates, and chlorides. In general, for pollutants derived from nonpoint sources, peak concentrations decrease as watershed size increases. However, the duration of exposures to intermediate concentrations increases with increasing watershed size. these effects are most evident for suspended solids and associated particulate contaminants. For pollutants derived primarily from surface runoff but not attached to suspended sediments, the effects of watershed size on peak concentrations are evident, but not as pronounced as for suspended sediments. For compounds such as nitrates, which enter streams largely through interflow or tile drainage, scale effects are least evident. These scale effects are most likely attributable to dilution accompanying storm water routing through drainage networks. Longitudinal dispersion may also affect concentration patterns. These scale effects systematically affect exposure patterns in different positions in drainage networks and must be considered in designing sampling programs to assess impacts of nonpoint pollution on contaminant concentration patterns and loadings.

Baker, D.; Richards, R.P.; Kramer, J.W. [Heidelberg Coll., Tiffin, OH (United States). Water Quality Lab.

1995-12-31T23:59:59.000Z

31

Reactions Between Water Soluble Organic Acids and Nitrates in...  

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

Between Water Soluble Organic Acids and Nitrates in Atmospheric Aerosols: Recycling of Nitric Acid and Formation of Reactions Between Water Soluble Organic Acids and Nitrates in...

32

Report seeks solutions for nitrate in drinking water  

E-Print Network (OSTI)

Nitrate in California’s Drinking Water report http://Clark Report seeks solutions for nitrate in drinking waternitrate contamination of drinking water in high-risk areas

Editors, By

2012-01-01T23:59:59.000Z

33

Nitrate Enhanced Microbial Cr(VI) Reduction-Final Report  

SciTech Connect

A major challenge for the bioremediation of radionuclides (i.e., uranium, technetium) and metals (i.e., Cr(VI), Hg) is the co-occurrence of nitrate as it can inhibit metal transformation. Denitrification (nitrate reduction to dinitrogen gas) is considered the most important ecological process. For many metal and metalloid reducing bacteria, however, ammonia is the end product through respiratory nitrate reduction (RNRA). The focus of this work was to determine how RNRA impacts Cr(VI) transformation. The goal was to elucidate the specific mechanism(s) that limits Cr(VI) reduction in the presence of nitrate and to use this information to develop strategies that enhance Cr(VI) reduction (and thus detoxification). Our central hypothesis is that nitrate impacts the biotransformation of metals and metalloids in three ways 1) as a competitive alternative electron acceptor (inhibiting transformation), 2) as a co-metabolite (i.e., concomitant reduction, stimulating transformation), and 3) as an inducer of specific proteins and pathways involved in oxidation/reduction reactions (stimulating transformation). We have identified three model organisms, Geobacter metallireducens (mechanism 1), Sulfurospirillum barnesii, (mechasism 2), and Desulfovibrio desulfuricans (mechanisms 3). Our specific aims were to 1) investigate the role of Cr(VI) concentration on the kinetics of both growth and reduction of nitrate, nitrite, and Cr(VI) in these three organisms; 2) develop a profile of bacterial enzymes involved in nitrate transformation (e.g., oxidoreductases) using a proteomic approach; 3) investigate the function of periplasmic nitrite reductase (Nrf) as a chromate reductase; and 4) develop a strategy to maximize microbial chromium reduction in the presence of nitrate. We found that growth on nitrate by G. metallireducens was inhibited by Cr(VI). Over 240 proteins were identified by LC/MS-MS. Redox active proteins, outer membrane heavy metal efflux proteins, and chemotaxis sensory proteins (Gmet_2478 and Gmet_1641) were up-regulated with exposure to Cr(VI). A nine-heme cytochrome C was purified that could reduce nitrite and could be oxidized by Cr(VI). For D. desulfuricans, we found that confirmed that Cr(VI) induced a prolonged lag period when Cr(VI) was reduced. Over three hundred proteins were unequivocally identified by LC/MS-MS and a significant number of down-regulated proteins for which the levels were changed >2 fold compared to control. Sulfite reductase levels were similar, however, nitrate and nitrite reductase were down-regulated. The supernatant of spent cultures was found to contain a filterable, heat stable compound that rapidly reduced Cr(VI). In addition, desulfoviridin was purified from nitrate grown cells and shown to have nitrite reductase activity that was inhibited by Cr(VI). For S. barnesii, periplasmic nitrate reductase (Nap), nitrite reductase (Nrf), and the metalloid reductase (Rar) were purified and characterized. The supernatant of spent cultures was also found to contain a filterable, heat stable compound that rapidly reduced Cr(VI) but that Rar also reduced Cr(VI). Our results from specific aims 1 through 3 indicate that for G. metallireducens, Cr(VI) inhibits nitrate respiration as it oxidizes cytochromes involved in nitrate respiration. Iron reduction is apparently not affected and the inhibitory affects of Cr(VI) may be attenuated by the addition of sufficient Fe(III) to generate Fe(II) that abiotically reduces the chromium. For S. barnesii, although the enzyme assays indicate that the components of the respiratory pathway for nitrate (e.g. Nap and Nrf) are inhibited by chromate, the organism has a mechanism to prevent this from actually occurring. Our current hypothesis is that the non-specific metalloid reductase (Rar) is providing resistance by reducing the Cr(VI). The strategy here would be to enhance its growth and metabolism in the natural setting. Lactate is a suitable electron donor for S. barnesii but other donors are possible. Although the version of the Phylochip used for monitoring the microb

John F. Stolz

2011-06-15T23:59:59.000Z

34

Thermal decomposition of nitrated tributyl phosphate  

SciTech Connect

Tri-n-butyl phosphate (TBP), nitric acid and water mixtures are subject to thermal decomposition. The gaseous and liquid decomposition product yields are highly path dependent. Higher temperatures accelerate decomposition rates, but may result in lower extent of reaction than comparable low temperature cases. Actual extent of reaction, and gaseous by-products generation, are affected by the presence of Zr(IV), condensate reflux back into the reaction vessel, the water/HNO{sub 3} and the HNO{sub 3}/TBP molar ratios, and whether the decomposition occurs at isobaric or constant volume conditions. Higher gaseous production results from condensate reflux, lower H{sub 2}O/HNO{sub 3} ratios, and with excess HNO{sub 3} and water present as a second liquid phase. Principal gaseous products include N{sub 2}, CO, CO{sub 2}, NO and N{sub 2}O. Measurable concentrations of NO{sub 2} were not observed, although gas coloration indicative of NO{sub 2} were obsessed during the beginning of decomposition measurements. Principal liquid products are dibutyl phosphoric acid and butyl nitrate. Air sparging of TBP solutions (e.g., thru transfers using air lift pumps) may increase the hazards of TBP decomposition reactions by lowering the H{sub 2}O/HNO{sub 3} molar ratios. Runaway reactions were not observed under the conditions of this study. Possible reaction mechanisms and pathways are discussed.

Hou, Y.; Barefield, E.K.; Tedder, D.W.; Abdel-Khalik, S.I. [Georgia Institute of Technology, Atlanta, GA (United States)

1995-12-31T23:59:59.000Z

35

Synthesis of a new energetic nitrate ester  

SciTech Connect

Nitrate esters have been known as useful energetic materials since the discovery of nitroglycerin by Ascanio Sobrero in 1846. The development of methods to increase the safety and utility of nitroglycerin by Alfred Nobel led to the revolutionary improvement in the utility of nitroglycerin in explosive applications in the form of dynamite. Since then, many nitrate esters have been prepared and incorporated into military applications such as double-based propellants, detonators and as energetic plasticizers. Nitrate esters have also been shown to have vasodilatory effects in humans and thus have been studied and used for treatments of ailments such as angina. The mechanism of the biological response towards nitrate esters has been elucidated recently. Interestingly, many of the nitrate esters used for military purposes are liquids (ethylene glycol dinitrate, propylene glycol dinitrate, etc). Pentaerythritol tetranitrate (PETN) is one of the only solid nitrate esters, besides nitrocellulose, that is used in any application. Unfortunately, PETN melting point is above 100 {sup o}C, and thus must be pressed as a solid for detonator applications. A more practical material would be a melt-castable explosive, for potential simplification of manufacturing processes. Herein we describe the synthesis of a new energetic nitrate ester (1) that is a solid at ambient temperatures, has a melting point of 85-86 {sup o}C and has the highest density of any known nitrate ester composed only of carbon, hydrogen, nitrogen and oxygen. We also describe the chemical, thermal and sensitivity properties of 1 as well as some preliminary explosive performance data.

Chavez, David E [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

36

SPATIAL COMPARISONS Considerable variation was observed in the concentrations of  

E-Print Network (OSTI)

: South Bay), and Golden Gate (BC20: Reference Site) stations (Table 2). No signifi- cant trends were trends showed a significant decrease in dissolved nitrate concentrations at the Dumbarton Bridge (BA30

37

Analysis of Enriched Uranyl Nitrate in Nested Annular Tank Array  

SciTech Connect

Two series of experiments were performed at the Rocky Flats Critical Mass Laboratory during the 1980s using highly enriched (93%) uranyl nitrate solution in annular tanks. [1, 2] Tanks were of typical sizes found in nuclear production plants. Experiments looked at tanks of varying radii in a co-located set of nested tanks, a 1 by 2 array, and a 1 by 3 array. The co-located set of tanks had been analyzed previously [3] as a benchmark for inclusion within the International Handbook of Evaluated Criticality Safety Benchmark Experiments. [4] The current study represents the benchmark analysis of the 1 by 3 array of a series of nested annular tanks. Of the seventeen configurations performed in this set of experiments, twelve were evaluated and nine were judged as acceptable benchmarks.

John D. Bess; James D. Cleaver

2009-06-01T23:59:59.000Z

38

Alkyl nitrate (C 1 -C 3 ) depth profiles in the tropical Pacific Ocean  

E-Print Network (OSTI)

concentrations with a [ iPr]/[Et] ratio of 0.1±0.0. Noat all depths with an [iPr]/[Et] ratio of 0.2 ± 0.0. Thiswith ethyl nitrate with an [iPr]/[Et] ratio of 0.2 ± 0.0.

Dahl, E. E; Yvon-Lewis, S. A; Saltzman, E. S

2007-01-01T23:59:59.000Z

39

Perchlorate and nitrate in situ bioremediation of ground water  

SciTech Connect

Nitrate and perchlorate are growing worldwide problems as mobile anionic groundwater contaminants. Biological rduction of nitrate and perchlorate in groundwater is under development as a technology to address these problems.

Strietelmeier, E. A. (Elizabeth A.); Nuttall, H. Eric; Hatzinger, Paul; Goltz, Mark

2002-01-01T23:59:59.000Z

40

Denitration of High Nitrate Salts Using Reductants  

SciTech Connect

This report describes work conducted by Pacific Northwest National Laboratory (PNNL), in conjunction with Idaho National Engineering and Environmental Laboratory (INEEL), to remove nitrates in simulated low-activity waste (LAW). The major objective of this work was to provide data for identifying and demonstrating a technically viable and cost-effective approach to condition LAW for immobilization (grout).

HD Smith; EO Jones; AJ Schmidt; AH Zacher; MD Brown; MR Elmore; SR Gano

1999-05-03T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

3, 59195976, 2003 The nitrate aerosol  

E-Print Network (OSTI)

ACPD 3, 5919­5976, 2003 The nitrate aerosol field over Europe M. Schaap et al. Title Page Abstract of Utrecht, Institute of Marine and Atmospheric Science, PO Box 80005, 3508 TA, Utrecht, The Netherlands 2, The Netherlands 3 Netherlands Energy Research Foundation (ECN), PO Box 1, 1755 LE Petten, The Netherlands 4 Joint

Paris-Sud XI, Université de

42

Quantifying uncertainty in nitrate pollution from land application of sewage sludge  

SciTech Connect

Uncertainty associated with nitrate-nitrogen pollution of ground water from sludge applications was investigated. Three alternative planning models were proposed. The models estimate annual loads and concentrations of nitrate-nitrogen in percolation. Published data from four field studies that included aerobic and anaerobic sludge and surface- and soil-incorporated applications were used for model testing. Point and stochastic validation procedures were used. The models were generally conservative. For three data sets average relative errors were approximately +/- 25% for all three models. The fourth data set had average relative errors of 100-500%. Wilcoxon Signed Rank test results (at ..cap alpha.. = 5%) suggested point-model predictions and observations were drawn from similar distributions. Stochastic validation tests also suggested that observations were samples from distributions of predictions. The models were tested as uncalibrated approximations of nitrate percolation. All three appear sufficiently accurate for planning application systems. A planning procedure was developed which utilizes analytically approximated probability distributions of nitrate loads and concentrations. Distributions are specified with analytical moment expressions and a normal distribution function limited to be non-negative.

Mummert, M.C.

1987-01-01T23:59:59.000Z

43

Molten nitrate salt technology development status report  

SciTech Connect

Recognizing thermal energy storage as potentially critical to the successful commercialization of solar thermal power systems, the Department of Energy (DOE) has established a comprehensive and aggressive thermal energy storage technology development program. Of the fluids proposed for heat transfer and energy storage molten nitrate salts offer significant economic advantages. The nitrate salt of most interest is a binary mixture of NaNO/sub 3/ and KNO/sub 3/. Although nitrate/nitrite mixtures have been used for decades as heat transfer and heat treatment fluids the use has been at temperatures of about 450/sup 0/C and lower. In solar thermal power systems the salts will experience a temperature range of 350 to 600/sup 0/C. Because central receiver applications place more rigorous demands and higher temperatures on nitrate salts a comprehensive experimental program has been developed to examine what effects, if any, the new demands and temperatures have on the salts. The experiments include corrosion testing, environmental cracking of containment materials, and determinations of physical properties and decomposition mechanisms. This report details the work done at Sandia National Laboratories in each area listed. In addition, summaries of the experimental programs at Oak Ridge National Laboratory, the University of New York, EIC Laboratories, Inc., and the Norwegian Institute of Technology on molten nitrate salts are given. Also discussed is how the experimental programs will influence the near-term central receiver programs such as utility repowering/industrial retrofit and cogeneration. The report is designed to provide easy access to the latest information and data on molten NaNO/sub 3//KNO/sub 3/ for the designers and engineers of future central receiver projects.

Carling, R.W.; Kramer, C.M.; Bradshaw, R.W.; Nissen, D.A.; Goods, S.H.; Mar, R.W.; Munford, J.W.; Karnowsky, M.M.; Biefeld, R.N.; Norem, N.J.

1981-03-01T23:59:59.000Z

44

Extraction of nitric acid, uranyl nitrate, and bismuth nitrate from aqueous nitric acid solutions with CMPO  

SciTech Connect

DOE sponsored development of the transuranium extraction (TRUEX) process for removing actinides from radioactive wastes. The solvent is a mixture of CMPO and TBP. Since the extraction characteristics of CMPO are not as well understood as those of TBP, the extraction of nitric acid, uranyl nitrate, and bismuth nitrate with CMPO (dissolved in n-dodecane) were studied. Results indicate that CMPO extracts nitric acid with a 1:1 stoichiometry; equilibrium constant is 2. 660{plus_minus}0.092 at 25 C, and extraction enthalpy is -5. 46{plus_minus}0.46 kcal/mol. Slope analysis indicates that uranyl nitrate extracts with a mixed equilibria of 1:1 and 2:1 stoichiometries in nearly equal proportion. Equil. constant of the 2: 1 extraction was 1.213 {times} 10{sup 6}{plus_minus}3.56 {times} 10{sup 4} at 25 C; reaction enthalpy was -9.610{plus_minus}0.594 kcal/mol. Nitration complexation constant is 8.412{plus_minus}0.579, with an enthalpy of -10.72{plus_minus}1.87 kcal/mol. Bismuth nitrate also extracts with a mixed equilibria of (perhaps) 1:1 and 2:1 stoichiometries. A 2:1 extraction equilibrium and a nitrate complexation adequately model the data. Kinetics and enthalpies were also measured.

Spencer, B.B.

1995-08-01T23:59:59.000Z

45

Studies on the reverse osmosis treatment of uranyl nitrate solution  

SciTech Connect

The aqueous effluent generated in uranium processing, particularly in the nuclear fuel fabrication step, contains mainly uranium nitrate. This requires treatment before discharge into the environment to meet stringent standards. This paper presents the performance of cellulose acetate membranes with regard to rejection of uranium under reverse osmotic conditions for feed concentrations up to 200 mg/l of uranium, which corresponds to the levels normally prevalent in the effluents. The use of additives like the disodium salt of ethylenediaminetetraacetic acid and sodium sulfate for the improvement of reverse osmosis performance of the above membranes was also investigated. In the light of the experimental results, the suitability of reverse osmosis for the decontamination of uranium effluents is discussed.

Prabhakar, S.; Panicker, S.T.; Misra, B.M.; Ramani, P.S. (Bhabha Atomic Research Centre, Bombay (India))

1992-03-01T23:59:59.000Z

46

A Tof-SIMS analysis of the effect of lead nitrate on rare earth flotation  

Science Journals Connector (OSTI)

Abstract The influence of lead nitrate on rare earth flotation in the presence of hydroxamates as collectors has been investigated by a combination of micro-flotation tests and time of flight secondary ion mass spectrometry (ToF-SIMS) surface chemical analysis. Micro-flotation tests identified a link between lead nitrate dose and an improved grade of REE minerals for concentrates. The testing also identified differences in the flotation behaviour of light rare earth (LREEs, La or Ce bearing minerals) and Y and Zr bearing minerals. TOF-SIMS analyses evaluated the variability in surface components on undifferentiated REE grains from the concentrates and tails samples in response to the varied lead nitrate dosing in micro-flotation tests. The surface analyses showed that both the REE grains and gangue phases reporting to the concentrate have higher relative surface proportions of both Pb and collectors as compared to those reporting to the tails. It is noted that the lead does not appear to be associated with an increase in collector adsorption, so the grade of REE can go up is not by selective adsorption of collectors. The significantly higher intensity of Pb species identified on the surface of the concentrate would suggest that lead addition can actually reverse the surface charge making it efficient for collectors to adsorb onto surfaces that they could not easily close to. It is also possible PbOH+ potentially acting as a point activator.

Liuyin Xia; Brian Hart; Brandon Loshusan

2015-01-01T23:59:59.000Z

47

Density of Gadolinium Nitrate Solutions for the High Flux Isotope Reactor  

SciTech Connect

In late 1992, the High Flux Isotope Reactor (HFIR) was planning to switch the solution contained in the poison injection tank from cadmium nitrate to gadolinium nitrate. The poison injection system is an emergency system used to shut down the reactor by adding a neutron poison to the cooling water. This system must be able to supply a minimum of 69 pounds of gadolinium to the reactor coolant system in order to guarantee that the reactor would become subcritical. A graph of the density of gadolinium nitrate solutions over a concentration range of 5 to 30 wt% and a temperature range of 15 to 40{sup o}C was prepared. Routine density measurements of the solution in the poison injection tank are made by HFIR personnel, and an adaptation of the original graph is used to determine the gadolinium nitrate concentration. In late 2008, HFIR personnel decided that the heat tracing that was present on the piping for the poison injection system could be removed without any danger of freezing the solution; however, the gadolinium nitrate solution might get as cold as 5{sup o}C. This was outside the range of the current density-concentration correlation, so the range needed to be expanded. This report supplies a new density-concentration correlation that covers the extended temperature range. The correlation is given in new units, which greatly simplifies the calculation that is required to determine the pounds of gadolinium in the tank solution. The procedure for calculating the amount of gadolinium in the HFIR poison injection system is as follows: (1) Calculate the usable volume in the system; (2) Measure the density of the solution; (3) Calculate the gadolinium concentration using the following equation: Gd(lb/ft{sup 3}) = measured density (g/mL) x 34.681 - 34.785; (4) Calculate the amount of gadolinium in the system using the following equation: Amount of Gd(lb) = Gd concentration (lb/ft{sup 3}) x usable volume (ft{sup 3}). The equation in step 3 is exact for a temperature of 5{sup o}C, and overestimates the gadolinium concentration at all higher temperatures. This guarantees that the calculation is conservative, in that the actual concentration will be at least as high as that calculated. If an additional safety factor is desired, it is recommended that an administrative control limit be set that is higher than the required minimum amount of gadolinium.

Taylor, Paul Allen [ORNL; Lee, Denise L [ORNL

2009-05-01T23:59:59.000Z

48

Herbicide and nitrate distribution in central Iowa rainfall  

SciTech Connect

Herbicides are detected in rainfall; however, these are a small fraction of the total applied. This study was designed to evaluate monthly and annual variation in atrazine (6-chloro-N-ethyl-N{prime}-(1-methylethyl)-1,3,5-triazine-2,4-diamine), alachlor (2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide), metolachlor (2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide), and NO{sub 3}-N concentrations in rainfall over Walnut Creek watershed south of Ames, IA. The study began in 1991 and continued through 1994. Within the watershed, two wet/dry precipitation samplers were positioned 4 km apart. Detections varied during the year with >90% of the herbicide detections occurring in April through early July. Concentrations varied among events from nondetectable amounts to concentrations of 154 {mu}g L{sup {minus}1}, which occurred when atrazine was applied during an extremely humid day immediately followed by rainfall of <10 mm that washed spray drift from the atmosphere. This was a local scale phenomenon, because the other collector had a more typical concentration of 1.7 {mu}g L{sup {minus}1} with an 8-mm rainfall. VAriation between the two collectors suggests that local scale meteorological processes affect herbicide movement. Yearly atrazine deposition totals were >100 {mu}g m{sup {minus}2} representing <0.1% of the amount applied. Nitrate-N concentrations in precipitation were uniformly distributed throughout the year and without annual variation in the concentrations. Deposition rates of NO{sub 3}-N were about 1.2 g m{sup {minus}2}. Annual loading onto the watershed was about 25% of the amount applied from all forms of N fertilizers. Movement and rates of deposition provide an understanding of the processes and magnitude of the impact of agriculture on the environment. 7 refs., 5 figs., 3 tabs.

Hatfield, J.L.; Prueger, J.H.; Pfeiffer, R.L. [National Soil Tilth Lab., Ames, IA (United States); Wesley, C.K. [Princeton Univ., NJ (United States)

1996-03-01T23:59:59.000Z

49

Analysis of wet deposition at an urban location  

SciTech Connect

Wet deposition data collected at the Detroit Edison urban site provided a clear chemical profile at this location for the period studied. Correlations of major anions with acidity indicate that decreases in pH are associated with increases in sulfates and nitrates. However, other components not measured may have a bearing on pH reductions. The differences between two locations 70 km apart were quite small on the average. Strong local source influences at the urban location were not evident in the limited data set available for study. Wind direction can help determine the ultimate origins of pollutants.

Foltman, R.A.

1985-01-01T23:59:59.000Z

50

Library Locations Locations other than Main Library  

E-Print Network (OSTI)

Library Locations Locations other than Main Library Example: Feminist Studies HQ1410 .U54 2009 University of California, Santa Barbara Library www.library.ucsb.edu Updated 3-2014 A - B.......................................6 Central M - N..................................................Arts Library (Music Building) P

51

STANDARD OPERATING PROCEDURE Location(s): ___________________________________________________  

E-Print Network (OSTI)

of as hazardous waste. 8. Decontamination: Specific instructions: For light contamination of small areas or items12.1 STANDARD OPERATING PROCEDURE for PHENOL Location(s): ___________________________________________________ Chemical(s): Phenol Specific Hazards: May be fatal if inhaled. Harmful if absorbed through skin. Harmful

Pawlowski, Wojtek

52

Corrosion of Iron Stainless Steels in Molten Nitrate Salt  

Science Journals Connector (OSTI)

Abstract Energy storage for concentrating solar power (CSP) is a major area of research that seeks to lower the levelized cost of electricity within the aggressive SunShot goals of 6¢/kW-hrth[1–3]. One viable approach is sensible thermal energy storage (TES), which currently utilizes molten nitrate binary salt, stored at 575 °C in the hot tank of a two tank system [4,5]. Increasing the temperature limit within the hot tank requires a detailed understanding of materials corrosion behavior, in addition to salt thermal stability properties. High temperature nickel based alloys are the logical choice for strength and corrosion resistance as elevated temperatures will increase corrosion kinetics, however, the cost of nickel based alloys are nearly four times more expensive than iron based steels [6]. For this reason iron based stainless steels, specifically 321SS and 347SS (nominally Fe-17Cr-9Ni), were chosen for investigation at several temperatures in nitrate salt. 316SS, an elementally similar alloy, was susceptible to stress corrosion cracking while tested at Solar Two [4]. It was suggested that alloys with stabilizing additions of niobium (347SS) or titanium (321SS) would mitigate this deleterious behavior. Flat coupon samples were immersed in binary nitrate salts at temperatures of 400, 500, 600, and 680 °C, with air sparging on all tests. Samples were nominally removed at intervals of 500, 1000, 2000, and 3000 hours to acquire data on time varying weight gain information while simultaneously employing metallography to identify corrosion mechanisms occurring within the melt. Corrosion rates varied dramatically with temperature according to an Arrhenius-type behavior. 347SS and 321SS had very little oxidation for 400 and 500 °C, indicative of a protective corrosion scale and low corrosion kinetics. Data at 600 °C showed that 321SS tended toward linear oxidation behavior based on oxide spallation which was observed on the samples upon removal. Corrosion products at 500 °C had phases of iron oxide, with obvious chromium depletion as observed in energy dispersive spectroscopy (EDS) scans. 600 °C corrosion layers were primarily iron oxide with obvious phases of sodium ferrite on the outer surface. 680 °C marked an excessive rate of corrosion with metal loss in both alloys.

Alan Kruizenga; David Gill

2014-01-01T23:59:59.000Z

53

Concentrating Information  

E-Print Network (OSTI)

We introduce the concentrated information of tripartite quantum states. For three parties Alice, Bob and Charlie, it is defined as the maximal mutual information achievable between Alice and Charlie via local operations and classical communication performed by Charlie and Bob. The gap between classical and quantum concentrated information is shown to be an operational figure of merit for a state merging protocol involving shared mixed states and no distributed entanglement. We derive upper and lower bounds on the concentrated information, and obtain a closed expression for arbitrary pure tripartite states in the asymptotic setting. In this situation, one-way classical communication is shown to be sufficient for optimal information concentration.

Alexander Streltsov; Soojoon Lee; Gerardo Adesso

2014-10-23T23:59:59.000Z

54

Model validation and uncertainty analysis -- An example using a nitrate percolation model  

SciTech Connect

Model validation and uncertainty analysis are demonstrated using a model previously developed for estimating nitrate-nitrogen (nitrate) concentrations in percolation water from land application of sewage sludge. The objectives are to demonstrate alternate validation techniques and to analyze uncertainty associated with model use following validation. Field data from three published sludge application studies and two separate methods are used for the validation. The first method, point validation, is accomplished by inserting mean values into the model to make point predictions. Model accuracy is then assessed by calculating coefficient of determination (r{sup 2}), relative error and standard error. Statistical accuracy is tested using the Wilcoxon Signed Rank Test. The second method, statistical validation, uses Monte Carlo simulation to obtain distributions of model predictions. The hypothesis that field data represent reasonable samples from the distribution of model predictions is tested by checking whether observed values are within a range bounded by the 5 and 95% quantities of the distribution. Both validation methods demonstrate that the land application model generally overestimates nitrate concentrations. Monte Carlo simulation is used to identify which model input parameters are the largest contributors to the uncertainty in model predictions.

Mummert, M.C. [R.E. Wright Environmental, Inc., Middletown, PA (United States)

1996-12-31T23:59:59.000Z

55

RADIOACTIVE HIGH LEVEL WASTE TANK PITTING PREDICTIONS: AN INVESTIGATION INTO CRITICAL SOLUTION CONCENTRATIONS  

SciTech Connect

A series of cyclic potentiodynamic polarization tests was performed on samples of ASTM A537 carbon steel in support of a probability-based approach to evaluate the effect of chloride and sulfate on corrosion the steel?s susceptibility to pitting corrosion. Testing solutions were chosen to systemically evaluate the influence of the secondary aggressive species, chloride, and sulfate, in the nitrate based, high-level wastes. The results suggest that evaluating the combined effect of all aggressive species, nitrate, chloride, and sulfate, provides a consistent response for determining corrosion susceptibility. The results of this work emphasize the importance for not only nitrate concentration limits, but also chloride and sulfate concentration limits.

Hoffman, E.

2012-11-08T23:59:59.000Z

56

Nitrate-Cancrinite Precipitation on Quartz Sand in Simulated Hanford  

E-Print Network (OSTI)

Nitrate-Cancrinite Precipitation on Quartz Sand in Simulated Hanford Tank Solutions B A R R Y R . B minerals at the U.S. Department of Energy's Hanford site in Washington. Nitrate-cancrinite began's (DOE) Hanford Site in southeast Washington since the late 1950s (1). To predict the fate

Illinois at Chicago, University of

57

Phytoplankton biomass and residual nitrate in the pelagic ecosystem  

Science Journals Connector (OSTI)

...research-article Research Article Phytoplankton biomass and residual nitrate in the pelagic ecosystem...are linked to changes in the chlorophyll biomass. The model can be treated analytically...Mathematical bounds are found for the autotrophic biomass and the residual nitrate in terms of the...

2003-01-01T23:59:59.000Z

58

CU(II): catalyzed hydrazine reduction of ferric nitrate  

SciTech Connect

A method is described for producing ferrous nitrate solutions by the cupric ion-catalyzed reduction of ferric nitrate with hydrazine. The reaction is complete in about 1.5 hours at 40/sup 0/C. Hydrazoic acid is also produced in substantial quantities as a reaction byproduct.

Karraker, D.G.

1981-11-01T23:59:59.000Z

59

Evaluation of nitrate and nitrite destruction/separation technologies  

SciTech Connect

This report describes and evaluates four types of nitrate and nitrite destruction and separation technologies that could be used to treat the aqueous, alkaline, nitrate-bearing mixed waste that is generated by the In-Tank Precipitation (ITP) process at the Savannah River Site (SRS). The technologies considered in this report include thermal, hydrothermal, chemical, and electrochemical technologies.

Hobbs, D.T.

1997-08-29T23:59:59.000Z

60

Thermal Decomposition of Nitrated Tributyl Phosphate  

SciTech Connect

Contact between tributyl phosphate and aqueous solutions of nitric acid and/or heavy metal nitrate salts at elevated temperatures can lead to exothermic reactions of explosive violence. Even though such operations have been routinely performed safely for decades as an intrinsic part of the Purex separation processes, several so-called ``red oil`` explosions are known to have occurred in the United States, Canada, and the former Soviet Union. The most recent red oil explosion occurred at the Tomsk-7 separations facility in Siberia, in April 1993. That explosion destroyed part of the unreinforced masonry walls of the canyon-type building in which the process was housed, and allowed the release of a significant quantity of radioactive material.

Paddleford, D.F. [Westinghouse Savannah River Company, Aiken, SC (United States); Hou, Y.; Barefield, E.K.; Tedder, D.W.; Abdel-Khalik, S.I. [Georgia Institute of Technology, GA (United States)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Thermal decomposition of nitrated tributyl phosphate  

SciTech Connect

Extended contact between heated mixtures of tri-n-butyl phosphate (TBP) and aqueous solutions of nitric acid and/or heavy metal nitrate salts at elevated temperatures can lead to exothermic reactions of explosive violence. Most solvent extraction operations are conducted at ambient conditions without heating TBP and have been performed safely for decades, but several explosions involving TBP have occurred in the US, Canada, and the former Soviet Union. This investigation was undertaken to characterize the products of thermal decomposition of both single- and two-phase mixtures of TBP, nitric acid, and water under a variety of conditions. The data indicate that the extent of reaction and the rate of gaseous product formation are affected by the presence of Zr{sup 4+}, distillation compared with reflux conditions, temperature, water/HNO{sub 3} and HNO{sub 3}/TBP ratios, and whether the decomposition occurs under constant pressure or constant volume conditions. Higher reaction temperatures accelerate the rate of decomposition, but the extent of decomposition, as measured by the quantity of gaseous products, was greater at lower temperatures when the decomposition was performed under distillation conditions. Higher gas production occurs under reflux conditions, lower H{sub 2}O/HNO{sub 3} ratios, and when a separate water-HNO{sub 3} phase is initially present. The major gaseous products include N{sub 2}, CO, CO{sub 2}, NO, and N{sub 2}O. Measurable amounts of NO{sub 2} were not present in the final product mixture, although an orange color suggesting the presence of NO{sub 2} was observed in the early stages of decomposition. The major liquid products were dibutyl phosphoric acid, butyl nitrate, and water. Small amounts of C{sub 1}-C{sub 4} carboxylic acids were also present. Because of the small sample sizes that were employed and the isothermal conditions of the decomposition, runaway reactions were not observed. Some possible reaction pathways are considered.

Hou, Y.; Barefield, E.K.; Tedder, D.W.; Abdel-Khalik, S.I. [Georgia Inst. of Technology, Atlanta, GA (United States)

1996-03-01T23:59:59.000Z

62

On the Chemla effect in molten alkali nitrates  

Science Journals Connector (OSTI)

The Chemla effect concerns the strong composition dependence of the internal ionic mobilities of cations in mixtures of two molten salts with a common anion in which the mobility of the large cation can be higher than the small one at low concentrations of the latter. Molecular dynamics simulations of molten ( Li Cs)NO 3 ( Li K)NO 3 ( Li Na)NO 3 ( Na Cs)NO 3 each at two different compositions at a given temperature and also pure LiNO 3 and pure KNO 3 have been performed with the aim of reproducing the Chemla effect. The key role played by anion polarization on the Chemla effect in molten alkali nitrates is demonstrated by comparing the calculated mobilities using nonpolarizable and polarizable models. Polarization effects were included in the simulations by using a previously proposed fluctuating charge model (FCM) for the NO 3 ? anion. It is shown that a single potential model for a ( M 1 M 2 ) NO 3 mixture gives the correct composition dependence of the M 1 and the M 2 mobilities provided that polarization effects are included in the model. The FCM is thus transferable between different systems but not its nonpolarizable counterpart. Structure and dynamics of the simulated systems are discussed in light of proposed models for the Chemla effect.

Mauro C. C. Ribeiro

2002-01-01T23:59:59.000Z

63

ARM - Instrument Location Table  

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

govInstrumentsLocation Table govInstrumentsLocation Table Instruments Location Table Contacts Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument Locations Site abbreviations explained in the key. Instrument Name Abbreviation NSA SGP TWP AMF C1 C2 EF BF CF EF IF C1 C2 C3 EF IF Aerosol Chemical Speciation Monitor ACSM Atmospheric Emitted Radiance Interferometer AERI Aethalometer AETH Ameriflux Measurement Component AMC Aerosol Observing System AOS Meteorological Measurements associated with the Aerosol Observing System AOSMET Broadband Radiometer Station BRS

64

Reversible micromachining locator  

DOE Patents (OSTI)

This invention provides a device which includes a locator, a kinematic mount positioned on a conventional tooling machine, a part carrier disposed on the locator and a retainer ring. The locator has disposed therein a plurality of steel balls, placed in an equidistant position circumferentially around the locator. The kinematic mount includes a plurality of magnets which are in registry with the steel balls on the locator. In operation, a blank part to be machined is placed between a surface of a locator and the retainer ring (fitting within the part carrier). When the locator (with a blank part to be machined) is coupled to the kinematic mount, the part is thus exposed for the desired machining process. Because the locator is removably attachable to the kinematic mount, it can easily be removed from the mount, reversed, and reinserted onto the mount for additional machining. Further, the locator can likewise be removed from the mount and placed onto another tooling machine having a properly aligned kinematic mount. Because of the unique design and use of magnetic forces of the present invention, positioning errors of less than 0.25 micrometer for each machining process can be achieved. 7 figs.

Salzer, L.J.; Foreman, L.R.

1999-08-31T23:59:59.000Z

65

Evaluation of Background Concentrations of Contaminants in an Unusual Desert Arroyo Near a Uranium Mill Tailings Disposal Cell - 12260  

SciTech Connect

The U.S. Department of Energy (DOE) Office of Legacy Management (LM) manages 27 sites that have groundwater containing uranium concentrations above background levels. The distal portions of the plumes merge into background groundwater that can have 50 ?g/L or more uranium. Distinguishing background from site-related uranium is often problematic, but it is critical to determining if remediation is warranted, establishing appropriate remediation goals, and evaluating disposal cell performance. In particular, groundwater at disposal cells located on the upper Cretaceous Mancos Shale may have relatively high background concentrations of uranium. Elevated concentrations of nitrate, selenium, and sulfate accompany the uranium. LM used geologic analogs and uranium isotopic signatures to distinguish background groundwater from groundwater contaminated by a former uranium processing site. The same suite of contaminants is present in groundwater near former uranium processing sites and in groundwater seeps emanating from the Mancos Shale over a broad area. The concentrations of these contaminants in Many Devils Wash, located near LM's Shiprock disposal cell, are similar to those in samples collected from many Mancos seeps, including two analog sites that are 8 to 11 km from the disposal cell. Samples collected from Many Devils Wash and the analog sites have high AR values (about 2.0)-in contrast, groundwater samples collected near the tailings disposal cell have AR values near 1.0. These chemical signatures raise questions about the origin of the contamination seeping into Many Devils Wash. (authors)

Bush, Richard P. [U.S. Department of Energy Office of Legacy Management (United States); Morrison, Stan J. [S.M. Stoller Corporation (United States)

2012-07-01T23:59:59.000Z

66

Groundwater nitrates in the Seymour Aquifer: problem or resource?  

E-Print Network (OSTI)

24 tx H2O Fall 2012 Story by Alejandra Arreola-Triana In the Rolling Plains of Texas, the Seymour Aquifer is the major source of water for Haskell, Jones and Knox counties. #31;e water from the Seymour Aquifer, however, contains nitrate levels... are working on ways to manage the nitrate levels in this aquifer. Tracking the source Nitrates in groundwater can come from runo#27;, fertilizer use, leaks from septic tanks, sewage and erosion of natural deposits, according to the U.S. Environmental...

Arreola-Triana, Alejandra

2012-01-01T23:59:59.000Z

67

Photovoltaic solar concentrator  

DOE Patents (OSTI)

A photovoltaic solar concentrator is disclosed with one or more transverse-junction solar cells (also termed point contact solar cells) and a lens located above each solar cell to concentrate sunlight onto the solar cell to generate electricity. Piezoelectric actuators tilt or translate each lens to track the sun using a feedback-control circuit which senses the electricity generated by one or more of the solar cells. The piezoelectric actuators can be coupled through a displacement-multiplier linkage to provide an increased range of movement of each lens. Each lens in the solar concentrator can be supported on a frame (also termed a tilt plate) having three legs, with the movement of the legs being controlled by the piezoelectric actuators.

Nielson, Gregory N.; Okandan, Murat; Resnick, Paul J.; Cruz-Campa, Jose Luis

2012-12-11T23:59:59.000Z

68

Weapon Systems Using Samine, Melanj and Isopropyl Nitrate  

Science Journals Connector (OSTI)

This paper describes the uses and properties of three chemicals stored in Azerbaijan: melanj, samine, and isopropyl nitrate. These three chemicals have historically been used in the manufacturing of liquid bal...

Vugar Gafarov

2005-01-01T23:59:59.000Z

69

Project Profile: Advanced Nitrate Salt Central Receiver Power Plant  

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

Abengoa, under the Baseload CSP FOA, will demonstrate a 100-megawatt electrical (MWe) central receiver plant using nitrate salt as the receiver coolant, thermal storage medium, and heat transport fluid in the steam generator.

70

NITRATE REMOVAL BY CALCINED HYDROTALCITE-TYPE COMPOUNDS  

Science Journals Connector (OSTI)

...contaminant in drinking water (which is primarily...levels in contaminated waters. Reverse osmosis, ion exchange, and electrodialysis are considered the best...nitrate-contaminated water (Canter, 1997; Haugen...solid interface. Treatment processes, such as...

María M. Socías-Viciana; María D. Ureña-Amate; Emilio González-Pradas; María J. García-Cortés; Cristina López-Teruel

71

Entrance Maze Locations  

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

Entrance Maze Locations Entrance Maze Locations for the Storage Ring Tunnel Martin Knott LS-83 2/17/87 The Purpose of this note is to document the locations and decision rationale of the entrance mazes for the APS storage ring. There are a total of seven entrance mazes, four on the infield side and three on the operating floor side of the ring. Three of the infield mazes are associated with infield buildings, one in the Extraction Building and one each in the two RF Buildings. These three were located to provide convenient passage between the technical buildings and the storage ring components associated with those buildings. The Extraction Building maze allows passage between the positron beam transfer area and the storage ring two sectors upstream of the injection

72

Reading Room Locations  

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

FOIA Offices and Reading Rooms FOIA Offices and Reading Rooms FOIA Office Locations Our FOIA Officers are located at various sites throughout the DOE complex, each with responsibility for records located at or under the jurisdiction of the site. We recommend that you send your request directly to that specific site. This will shorten the processing time. However, if you do not know which location has responsive records, you may either call the Headquarters FOIA office at (202) 586-5955 to determine the appropriate office, or mail the request to the Headquarters FOIA office. Other records are publicly available in the facilities listed below: Headquarters U.S. Department of Energy FOIA/Privacy Act Group 1000 Independence Avenue, SW Washington, D.C. 20585 Phone: 202-586-5955 Fax: 202-586-0575

73

Location linked information  

E-Print Network (OSTI)

This work builds an infrastructure called Location Linked Information that offers a means to associate digital information with public, physical places. This connection creates a hybrid virtual/physical space, called glean ...

Mankins, Matthew William David, 1975-

2003-01-01T23:59:59.000Z

74

International land rig locator  

SciTech Connect

Mechanical specifications, ratings, locations, and status are listed for each of the 5,000 contract rotary drilling rigs operated by the more than 700 independent drilling contractors throughout the Free World.

Not Available

1984-03-01T23:59:59.000Z

75

International land rig locator  

SciTech Connect

Mechanical specifications, ratings, locations, and status are listed for each of the 5,000 contract rotary drilling rigs operated by more than 700 independent drilling contractors throughout the Free World.

Not Available

1983-09-01T23:59:59.000Z

76

a r r i o r BUILDING# NAME LOCATION BUILDING# NAME LOCATION OTHER BUILDINGS LOCATION SORORITIES LOCATION  

E-Print Network (OSTI)

Admissions Parking Palmer Lake B l a c k W a r r i o r R i v e r BUILDING# NAME LOCATION BUILDING# NAME LOCATION OTHER BUILDINGS LOCATION SORORITIES LOCATION 7046 70127012 1155 10331033 1150 1039 1038

Carver, Jeffrey C.

77

location | OpenEI  

Open Energy Info (EERE)

location location Dataset Summary Description No description given. Source Oak Ridge National Laboratory Date Released November 30th, 2009 (5 years ago) Date Updated Unknown Keywords biodiesel ethanol location production capacity transportation Data application/zip icon Biorefineries.zip (zip, 7 MiB) Quality Metrics Level of Review Some Review Comment Temporal and Spatial Coverage Frequency Time Period License License Other or unspecified, see optional comment below Comment Rate this dataset Usefulness of the metadata Average vote Your vote Usefulness of the dataset Average vote Your vote Ease of access Average vote Your vote Overall rating Average vote Your vote Comments Login or register to post comments If you rate this dataset, your published comment will include your rating.

78

Pine Tree Growth Locations  

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

Pine Tree Growth Locations Pine Tree Growth Locations Name: Amielee Location: N/A Country: N/A Date: N/A Question: Why do pine trees not grow south of the equator? Replies: Dear Amielee, The natural distribution of the pines is the northern hemisphere: http://phylogeny.arizona.edu/tree/eukaryotes/green_plants/embryophytes/conif ers/pinaceae/pinus/pinus.html However, pines have become introduced into the southern hemisphere through cultivation: http://www.woodweb.com/~treetalk/Radiata_Pine/wowhome.html Sincerely, Anthony R. Brach, Ph.D. Hi Amielee Some pine trees do live south of the equator but we (I live in Australia) do not have the huge forests of native conifers that you have in the northern hemisphere. Even in the northern hemisphere conifers are only found in two forest types: 1. Tiaga

79

University Location Project Description  

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

Location Project Description Location Project Description Boise State University Boise, Idaho Boise State University has undertaken a study of the structural setting and geothermal potential at Neal Hot Springs that will integrate geology, geochemistry, and geophysics to analyze the site on the western Snake River plain. Boise State will determine if Neal Hot Springs sustains the necessary rock dilation and conduit pathways for hydrothermal fluid flow and successful geothermal development. The result will be new data acquisition, including a deep geophysical survey and fault surface data. Colorado School of Mines Golden, Colorado Colorado School of Mines will conduct an investigation near Homedale, Idaho, an area that straddles volcanic rock and unconsolidated sediments.

80

Impact of earthen waste storage on nitrate concentration of surface water  

Science Journals Connector (OSTI)

One of the major sources of nitrogen is animal waste stored in earthen waste storage or unlined storage ponds. Quantifying seepage and mass transport of ... is the first critical step in estimating the long-term ...

Tasuku Kato; Motoko Shimura

2007-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Computer Lab Information Location  

E-Print Network (OSTI)

M340 Computer Lab Information · Location: The computer labs accessible to you are Weber 205 it is recommended that you save your files on a floppy when you are finished. · There is another directory, g:\\m340 to the saved files you have to add the directory to the Matlab path. To do this type addpath g:\\m340

Dangelmayr, Gerhard

82

Benchmark Evaluation of Plutonium Nitrate Solution Arrays  

SciTech Connect

In October and November of 1981 thirteen approach-to-critical experiments were performed on a remote split table machine (RSTM) in the Critical Mass Laboratory of Pacific Northwest Laboratory (PNL) in Richland, Washington, using planar arrays of polyethylene bottles filled with plutonium (Pu) nitrate solution. Arrays of up to sixteen bottles were used to measure the critical number of bottles and critical array spacing with a tight fitting Plexiglas{reg_sign} reflector on all sides of the arrays except the top. Some experiments used Plexiglas shells fitted around each bottles to determine the effect of moderation on criticality. Each bottle contained approximately 2.4 L of Pu(NO3)4 solution with a Pu content of 105 g Pu/L and a free acid molarity H+ of 5.1. The plutonium was of low 240Pu (2.9 wt.%) content. These experiments were performed to fill a gap in experimental data regarding criticality limits for storing and handling arrays of Pu solution in reprocessing facilities. Of the thirteen approach-to-critical experiments eleven resulted in extrapolations to critical configurations. Four of the approaches were extrapolated to the critical number of bottles; these were not evaluated further due to the large uncertainty associated with the modeling of a fraction of a bottle. The remaining seven approaches were extrapolated to critical array spacing of 3-4 and 4-4 arrays; these seven critical configurations were evaluation for inclusion as acceptable benchmark experiments in the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbook. Detailed and simple models of these configurations were created and the associated bias of these simplifications was determined to range from 0.00116 and 0.00162 {+-} 0.00006 ?keff. Monte Carlo analysis of all models was completed using MCNP5 with ENDF/BVII.0 neutron cross section libraries. A thorough uncertainty analysis of all critical, geometric, and material parameters was performed using parameter perturbation methods. It was found that uncertainty in the impurities in the polyethylene bottles, reflector position, bottle outer diameter, and critical array spacing had the largest effect. The total uncertainty ranged from 0.00651 to 0.00920 ?keff. Evaluation methods and results will be presented and discussed in greater detail in the full paper.

M. A. Marshall; J. D. Bess

2011-09-01T23:59:59.000Z

83

Evaluation of a solar intermittent refrigeration system for ice production operating with ammonia/lithium nitrate  

SciTech Connect

A novel solar intermittent refrigeration system for ice production developed in the Centro de Investigacion en Energia of the Universidad Nacional Autonoma de Mexico is presented. The system operates with the ammonia/lithium nitrate mixture. The system developed has a nominal capacity of 8 kg of ice/day. It consists of a cylindrical parabolic collector acting as generator-absorber. Evaporator temperatures as low as -11 C were obtained for several hours with solar coefficients of performance up to 0.08. It was found that the coefficient of performance increases with the increment of solar radiation and the solution concentration. A dependency of the coefficient of performance was not founded against the cooling water temperature. Also it was found that the maximum operating pressure increases meanwhile the generation temperature decreases with an increase of the solution concentration. (author)

Rivera, W.; Moreno-Quintanar, G.; Best, R. [Centro de Investigacion en Energia, Universidad Nacional Autonoma de Mexico, A.P. 34, 62580 Temixco, Mor. (Mexico); Rivera, C.O.; Martinez, F. [Facultad de Ingenieria Campus Coatzacoalcos, Universidad Veracruzana, Av. Universidad Km 7.5, 96530 Coatzacoalcos, Ver. (Mexico)

2011-01-15T23:59:59.000Z

84

LUMINESCENCE SPECTRA OF THE URANYL ION IN TWO GEOMETRICALLY SIMILAR COORDINATION ENVIRONMENTS: URANYL NITRATE HEXAHYDRATE AND DI-u-AQUO-BIS (DIOXODINITRA-TOURANIUM(VI) DI-IMIDAZOLE  

E-Print Network (OSTI)

coordination sphere of uranyl nitrate hexahydrate (UNH). U-Coordination Environments: Uranyl Nitrate Hexahydrate andin the crystal hosts of uranyl nitrate hexahydrate (UNH) and

Brittain, Harry G.

2013-01-01T23:59:59.000Z

85

Thermophysical Properties of Sodium Nitrate and Sodium Chloride  

Office of Scientific and Technical Information (OSTI)

Thermophysical Properties of Sodium Nitrate and Sodium Chloride Thermophysical Properties of Sodium Nitrate and Sodium Chloride Solutions and Their Effects on Fluid Flow in Unsaturated Media Tianfu Xu and Karsten Pruess Earth Sciences Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA 94720 ABSTRACT. Understanding movement of saline sodium nitrate (NaNO 3 ) waste solutions is important for assessing the contaminant migration near leaking waste storage tanks in the unsaturated zone at the Hanford site (Washington, USA). The purpose of this study is to contribute a basic understanding of effects of the thermophysical behavior of NaNO 3 solutions on fluid flow in unsaturated media. We first present mathematical expressions for the dependence of density, viscosity, solubility and vapor pressure of

86

STRUCTURE OF PENTAKIS (UREA) DIOXOURANIUM(VI)NITRATE LUO2 (OC (NH2)2)5 (NO3) 2  

E-Print Network (OSTI)

an aqueous solution of uranyl nitrate and urea which wasALL f(O,O.t» URANYL UREA NITRATE FOB AND FCA ARE THEFACTORS CO~TINUE& FOf URANYL UREA NITRATE l F[) B PAGE . ,

Zalkin, Allan

2011-01-01T23:59:59.000Z

87

Clean Cities: Coalition Locations  

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

Locations Locations Clean Cities coalitions are primarily located in major metropolitan areas throughout the United States. Select the dots on the map for information about individual coalitions. See also the list of coalitions by designation date. United States map showing Clean Cities Coalition locations. Philadelphia State of Delaware Capitol Clean Cities of Connecticut Connecticut Southwestern Area New Haven Norwich Red River Valley (Grand Forks, Winnipeg, Manitoba, Canada) Silicon Valley (San Jose) East Bay (Oakland) San Francisco Sacramento Granite State State of Vermont Northeast Ohio Clean Transportation (Cleveland) Detroit Clean Communities of Western New York (Buffalo) Central New York (Syracuse) Capital District (Albany) Empire Clean Cities State of Maryland Washington DC Metropolitan South Shore Western Riverside County Southern California Association of Governments (SCAG) Atlanta Alabama Denver Philadelphia State of Delaware Las Vegas Washington DC Metropolitan Massachusetts Clean Cities Lone Star Clean Fuels Alliance (Austin) Southeast Florida Chicago Land of Enchantment Wisconsin-Southeast Area Southern Colorado Clean Cities Coalition Long Beach Antelope Valley Utah Clean Cities State of Maryland Kentucky Clean Cities Partnership Coalition Rogue Valley State of West Virginia San Joaquin Valley San Francisco Columbia-Willamette St. Louis Central New York (Syracuse) Dallas/Ft. Worth Honolulu Central Arkansas Pittsburgh Southern California Association of Governments (SCAG) Los Angeles Coachella Valley Region Northern Colorado Central Oklahoma (Oklahoma City) Virginia Clean Cities Coalition San Diego Regional Clean Cities Coalition Greater Long Island Maine Clean Communities Tulsa Valley of the Sun (Phoenix) Western Riverside County New Jersey Genesee Region (Rochester) Western Washington Clean Cities (Seattle) Ocean State Connecticut Connecticut2 Kansas City Regional Coalition Greater Indiana Clean Cities Coalition Capital District (Albany) Tucson Central Florida Clean Cities Coalition Alamo Area (San Antonio) Greater Baton Rouge Clean Cities Coalition Triangle (Raleigh, Durham, Chapel Hill) Twin Cities Clean Fuels Ohio Yellowstone-Teton Clean Energy Coalition Greater Lansing Palmetto State Houston-Galveston Middle Tennessee East Tennessee Clean Fuels Coalition Centralina Clean Fuels Coalition State of Iowa Treasure Valley Central Coast Southeast Louisiana Clean Fuels Partnership Land of Sky Coalition

88

Clean Cities: Coalition Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Locations Locations Clean Cities coalitions are primarily located in major metropolitan areas throughout the United States. Select the dots on the map for information about individual coalitions. See also the list of coalitions by designation date. United States map showing Clean Cities Coalition locations. Philadelphia State of Delaware Capitol Clean Cities of Connecticut Connecticut Southwestern Area New Haven Norwich Red River Valley (Grand Forks, Winnipeg, Manitoba, Canada) Silicon Valley (San Jose) East Bay (Oakland) San Francisco Sacramento Granite State State of Vermont Northeast Ohio Clean Transportation (Cleveland) Detroit Clean Communities of Western New York (Buffalo) Central New York (Syracuse) Capital District (Albany) Empire Clean Cities State of Maryland Washington DC Metropolitan South Shore Western Riverside County Southern California Association of Governments (SCAG) Atlanta Alabama Denver Philadelphia State of Delaware Las Vegas Washington DC Metropolitan Massachusetts Clean Cities Lone Star Clean Fuels Alliance (Austin) Southeast Florida Chicago Land of Enchantment Wisconsin-Southeast Area Southern Colorado Clean Cities Coalition Long Beach Antelope Valley Utah Clean Cities State of Maryland Kentucky Clean Cities Partnership Coalition Rogue Valley State of West Virginia San Joaquin Valley San Francisco Columbia-Willamette St. Louis Central New York (Syracuse) Dallas/Ft. Worth Honolulu Central Arkansas Pittsburgh Southern California Association of Governments (SCAG) Los Angeles Coachella Valley Region Northern Colorado Central Oklahoma (Oklahoma City) Virginia Clean Cities Coalition San Diego Regional Clean Cities Coalition Greater Long Island Maine Clean Communities Tulsa Valley of the Sun (Phoenix) Western Riverside County New Jersey Genesee Region (Rochester) Western Washington Clean Cities (Seattle) Ocean State Connecticut Connecticut2 Kansas City Regional Coalition Greater Indiana Clean Cities Coalition Capital District (Albany) Tucson Central Florida Clean Cities Coalition Alamo Area (San Antonio) Greater Baton Rouge Clean Cities Coalition Triangle (Raleigh, Durham, Chapel Hill) Twin Cities Clean Fuels Ohio Yellowstone-Teton Clean Energy Coalition Greater Lansing Palmetto State Houston-Galveston Middle Tennessee East Tennessee Clean Fuels Coalition Centralina Clean Fuels Coalition State of Iowa Treasure Valley Central Coast Southeast Louisiana Clean Fuels Partnership Land of Sky Coalition

89

E-Print Network 3.0 - aluminium nitrates Sample Search Results  

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

common co.contaminant with uranium. Nitrate inhib- ited U... Mexico. Once nitrate was depleted, both U(VI) and Fe(lIl) were Ireduced concurrently. When ... Source: Lovley, Derek -...

90

THE SYSTEM THORIUM NITRATE-WATER-NITRIC ACID AT 25 AND THE HYDRATES...  

Office of Scientific and Technical Information (OSTI)

SYSTEM THORIUM NITRATE-WATER-NITRIC ACID AT 25 AND THE HYDRATES OF THORIUM NITRATE Re-direct Destination: Temp Data Fields Ferraro, J.R.; Katzin, L.I. Temp Data Storage 3: Argonne...

91

Extraction of U(VI) with N,N?-dimethyl-N,N?-dioctylmalonamide from nitrate media  

Science Journals Connector (OSTI)

The extraction of uranyl nitrate with the novel extractant N,N?-dimethyl-N,N?-dioctylmalonamide (DMDOMA) from aqueous sodium nitrate (and nitric acid) was investigated. The extraction mechanism was established an...

Yu Cui; Yufen Hu; Yanju Zhang; Shaohong Yin…

2010-03-01T23:59:59.000Z

92

Nitrate occurrence and attenuation in the major aquifers of England and Wales  

Science Journals Connector (OSTI)

...Examination of the delta15N composition of infiltrating nitrate relative...L., Zech, W., The composition of dissolved organic matter...Migration and attenuation of agrochemical pollutants: insights from...The nitrogen isotope composition of groundwater nitrates from...

M.O. Rivett; J.W.N. Smith; S.R. Buss; P. Morgan

93

E-Print Network 3.0 - ammonium nitrate-fuel oil Sample Search...  

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

nitrate-fuel oil Search Powered by Explorit Topic List Advanced Search Sample search results for: ammonium nitrate-fuel oil Page: << < 1 2 3 4 5 > >> 1 ORNL 2010-G01068jcn UT-B ID...

94

Utilization of Common Automotive Three-Way NO{sub x} Reduction Catalyst for Managing Off- Gas from Thermal Treatment of High-Nitrate Waste - 13094  

SciTech Connect

Studsvik's Thermal Organic Reduction (THOR) steam reforming process has been tested and proven to effectively treat radioactive and hazardous wastes streams with high nitrate contents to produce dry, stable mineral products, while providing high conversion (>98%) of nitrates and nitrites directly to nitrogen gas. However, increased NO{sub x} reduction may be desired for some waste streams under certain regulatory frameworks. In order to enhance the NO{sub x} reduction performance of the THOR process, a common Three-Way catalytic NO{sub x} reduction unit was installed in the process gas piping of a recently completed Engineering Scale Technology Demonstration (ESTD). The catalytic DeNO{sub x} unit was located downstream of the main THOR process vessel, and it was designed to catalyze the reduction of residual NO{sub x} to nitrogen gas via the oxidation of the hydrogen, carbon monoxide, and volatile organic compounds that are inherent to the THOR process gas. There was no need for auxiliary injection of a reducing gas, such as ammonia. The unit consisted of four monolith type catalyst sections positioned in series with a gas mixing section located between each catalyst section. The process gas was monitored for NO{sub x} concentration upstream and downstream of the catalytic DeNO{sub x} unit. Conversion efficiencies ranged from 91% to 97% across the catalytic unit, depending on the composition of the inlet gas. Higher concentrations of hydrogen and carbon monoxide in the THOR process gas increased the NO{sub x} reduction capability of the catalytic DeNO{sub x} unit. The NO{sub x} destruction performance of THOR process in combination with the Three-Way catalytic unit resulted in overall system NO{sub x} reduction efficiencies of greater than 99.9% with an average NO{sub x} reduction efficiency of 99.94% for the entire demonstration program. This allowed the NO{sub x} concentration in the ESTD exhaust gas to be maintained at less than 40 parts per million (ppm), dry basis with an average concentration of approximately 17 ppm, dry basis. There were no signs of catalyst deactivation throughout the 6 day demonstration program, even under the high steam (>50%) content and chemically reducing conditions inherent to the THOR process. Utilization of the common Three-Way automotive catalyst may prove to be a cost effective method for improving NO{sub x} emissions from thermal treatment processes that utilize similar processing conditions. This paper will discuss the details of the implementation and performance of the Three-Way catalytic DeNO{sub x} unit at the THOR ESTD, as well as a discussion of future work to determine the long-term durability of the catalyst in the THOR process. (authors)

Foster, Adam L.; Ki Song, P.E. [Studsvik, Inc. 5605 Glenridge Drive Suite 705, Atlanta, GA 30342 (United States)] [Studsvik, Inc. 5605 Glenridge Drive Suite 705, Atlanta, GA 30342 (United States)

2013-07-01T23:59:59.000Z

95

Waste Isolation Pilot Plant Nitrate Salt Bearing Waste Container  

E-Print Network (OSTI)

HEPA filtration. On April 11, 2014, in anticipation of investigation of the source of a radiological on the possibility that a container of inadequately remediated nitrate salt bearing waste had caused the release and is the most Page 1 of 17 #12;likely source of the release. Further investigation is underway to determine

Napp, Nils

96

Test Cell Location  

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

Mazda 3 i-Stop Mazda 3 i-Stop Test Cell Location APRF- 4WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional- Start Stop Vehicle Dynamometer Input Document Date 11/20/2012 Advanced Powertrain Research Facility Test weight [lb] 3250 Vehicle Dynamometer Input Document Date 11/20/2012 Revision Number 1 Advanced Powertrain Research Facility Test weight [lb] Target A [lb] 3250 31.2 Target B [lb/mph] Target C [lb/mph^2] 0.462 0.014 Test Fuel Information - Vehicle equipped with with i-Stop package - Manual Transmission - All tests completed in ECO mode - EPA shift schedule modified based on vehicle shift light activity Revision Number 1 Notes: Fuel type EPA Tier II EEE Gasoline Test Fuel Information - Vehicle equipped with with i-Stop package

97

Locations Everyone: Lights, Camera, Action!  

Science Journals Connector (OSTI)

Locations Everyone: Lights, Camera, Action! ... Harvard Institute of Proteomics Harvard Medical School ...

Robert F. Murphy; Joshua LaBaer

2008-12-05T23:59:59.000Z

98

Aqueous uranium(IV) concentrations controlled by calcium uranyl vanadate precipitates  

E-Print Network (OSTI)

oxidizing conditions. Uranyl nitrate hexahydrate (Spectrumto contain 300 ?M uranyl nitrate (hexahydrate), 300 ?M

Tokunaga, T.K.

2014-01-01T23:59:59.000Z

99

Test Cell Location  

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

Chrysler 300 Chrysler 300 Test Cell Location 2WD Vehicle Setup Information Downloadable Dynamometer Database (D 3 )- Test Summary Sheet Vehicle Architecture Conventional Vehicle Dynamometer Input Document Date 8/7/2013 Advanced Powertrain Research Facility Test weight [lb] Target A [lb] 4250 38.61 Target B [lb/mph] Target C [lb/mph^2] 0.8894 0.01105 3.6L VVT Port-injected V-6 8 speed Transmission Revision Number 3 Notes: Test Fuel Information 3.6L VVT Port-injected V-6 8 speed Transmission Fuel type Tier II EEE HF437 3.6L VVT Port-injected V-6 8 speed Transmission Fuel density [g/ml] Fuel Net HV [BTU/lbm] 0.743 18490 T e s t I D [ # ] C y c l e C o l d s t a r t ( C S t ) H o t s t a r t [ H S t ] D a t e T e s t C e l l T e m p [ C ] T e s t C e l l R H [ % ] T e s t C e l l B a r o [ i n / H g ] V e h i c l e c o o l i n g f a n s p e e d : S p e e d M a t c h [ S M ] o r c o n s t a n t s p e e d [ C S ] S

100

Soil temperature is an important regulatory control on dissolved organic carbon supply and uptake of soil solution nitrate  

Science Journals Connector (OSTI)

Abstract The role of abiotic processes on dissolved organic matter (DOM) production is often underappreciated. However, abiotic processes appear to be especially important in subsoils where, with increasing depth, microbial activity declines and soil organic matter (SOM) becomes a progressively more important contributor to DOM. Within three soil depths (20, 40, and 60 cm) in a temperate forest, soil temperature was positively associated with dissolved organic carbon (DOC) concentration (R2 = 0.23–0.77) and the DOM humification index (R2 = 0.35–0.72) for soil solutions in slow and fast flowpaths. With increasing soil temperature from 5 to 24 °C, average DOC concentrations increased by 86% at 20 cm, 12% at 40 cm and 12% at 60 cm soil depths. Our data suggest that DOM supply, especially in subsoils, is temperature dependent. We attribute this to the influence of temperature on DOM replenishment through direct processes such as SOM dissolution, diffusion and exchange reactions as well as indirect processes such as rhizodeposition and exoenzyme activity. In contrast, negative relationships (R2 = 0.71–0.88) between temperature and nitrate concentrations in subsoil suggested that the temperature-dependent supply of DOM drives microbial processes such as dissimilatory and assimilatory nitrate consumption.

Ehsan R. Toosi; John P. Schmidt; Michael J. Castellano

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the  

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

Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the Southwest Pacific during Austral Autumn, 1990: Results from NOAA/PMEL CGC-90 Cruise. Total Carbon Dioxide, Hydrographic, and Nitrate Measurements in the Southwest Pacific during Austral Autumn, 1990: Results from NOAA/PMEL CGC-90 Cruise. NDP-052 (1995) data Download the Data and ASCII Documentation files of NDP-052 PDF Download a PDF of NDP-052 image Contributed by Marilyn F. Lamb and Richard A. Feely Pacific Marine Environmental Laboratory Seattle, Washington and Lloyd Moore and Donald K. Atwood Atlantic Oceanographic and Meteorological Laboratory Miami, Florida Prepared by Alexander Kozyr* Carbon Dioxide Information Analysis Center Oak Ridge National Laboratory Oak Ridge, Tennessee, U.S.A. *Energy, Environment, and Resources Center The University of Tennessee Knoxville, Tennessee Environmental Sciences Division Publication No. 4420 Date Published: September 1995

102

Infrared absorption coefficients of gaseous chlorine nitrate at 296 K  

SciTech Connect

Chlorine nitrate (ClONO{sub 2}) is a temporary reservoir species which couples the ClO{sub x} and NO{sub x} catalytic cycles responsible for ozone depletion in the stratosphere. The identification and quantitative estimation of ClONO{sub 2} in the stratosphere has been achieved using its characteristic absorptions around 1,292 cm{sup {minus}1}. Peak and integrated absorption coefficients of the {nu}{sub 1}, {nu}{sub 2}, {nu}{sub 3} and {nu}{sub 4} fundamental bands of chlorine nitrate were measured at resolutions of 0.13 cm{sup {minus}1} for both pure and pressure-broadened samples at 296 K. The results are compared to previous literature data.

Tuazon, E.C. (Univ. of California, Riverside (USA)); Wallington, T.J. (Ford Motor Co., Dearborn, MI (USA))

1989-04-01T23:59:59.000Z

103

Concentrating Solar Power Forum Concentrating Photovoltaics (Presentation)  

SciTech Connect

This presentation's summaries: a convenient truth, comparison of three concentrator technologies, value of high efficiency, and status of industry.

Kurtz, S.

2008-05-06T23:59:59.000Z

104

Guide to the Library Locations  

E-Print Network (OSTI)

Guide to the Libraries #12;Library Locations W.E.B. DU BOIS LIBRARY www.library.umass.edu 154 Hicks Way (413) 545-0150, (413) 545-2622 The Du Bois Library is the primary location for resources machine, and a fax machine. Quiet study space is located on Floors 2 and 3 and throughout the upper floors

Massachusetts at Amherst, University of

105

Spring loaded locator pin assembly  

DOE Patents (OSTI)

This invention deals with spring loaded locator pins. Locator pins are sometimes referred to as captured pins. This is a mechanism which locks two items together with the pin that is spring loaded so that it drops into a locator hole on the work piece.

Groll, Todd A. (Idaho Falls, ID); White, James P. (Pocatelo, ID)

1998-01-01T23:59:59.000Z

106

Spring loaded locator pin assembly  

DOE Patents (OSTI)

This invention deals with spring loaded locator pins. Locator pins are sometimes referred to as captured pins. This is a mechanism which locks two items together with the pin that is spring loaded so that it drops into a locator hole on the work piece. 5 figs.

Groll, T.A.; White, J.P.

1998-03-03T23:59:59.000Z

107

Mobile Alternative Fueling Station Locator  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Alternative Fueling Station Locator Alternative Fueling Station Locator Fuel Type Biodiesel (B20 and above) Compressed Natural Gas Electric Ethanol (E85) Hydrogen Liquefied Natural Gas (LNG) Liquefied Petroleum Gas (Propane) Location Enter a city, postal code, or address Include private stations Not all stations are open to the public. Choose this option to also search private fueling stations. Search Caution: The AFDC recommends that users verify that stations are open, available to the public, and have the fuel prior to making a trip to that location. Some stations in our database have addresses that could not be located by the Station Locator application. This may result in the station appearing in the center of the zip code area instead of the actual location. If you're having difficulty, please contact the technical response team at

108

Solar Concentration in Space  

Science Journals Connector (OSTI)

Solar concentrators go space. Lens and mirror-based solar concentrators have recently begun to boost photovoltaic power supplies for satellites in space. In 1998, the first mission carrying solar concentrators...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

109

Postmortem Memantine Concentrations  

Science Journals Connector (OSTI)

......case-report Case Report Postmortem Memantine Concentrations Nichole Bynum * Justin...Postmortem fluid and tissue concentrations of memantine (Namenda), a drug recently approved...in a suspicious death. In addition, memantine concentrations considered to be incidental......

Nichole Bynum; Justin Poklis; Diana Garside; Ruth Winecker

2007-05-01T23:59:59.000Z

110

SunShot Initiative: Concentrating Solar Power  

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

Power Power SunShot CSP Team Learn more about the SunShot concentrating solar power program staff by visiting the team's profile pages. Argonne National Laboratory Argonne National Laboratory High-Efficiency Thermal Energy Storage System for CSP University of California Los Angeles University of California Los Angeles High Operating Temperature Liquid Metal Heat Transfer Fluids Jet Propulsion Laborator Jet Propulsion Laboratory Low-Cost, Lightweight Solar Concentrators Abengoa Solar Abengoa Solar Advanced Nitrate Salt Central Receiver Power Plant HiTek Services HiTek Services Low-Cost Heliostat Development The Department of Energy (DOE) supports research and development of concentrating solar power (CSP) technologies as a unique path to achieve SunShot Initiative cost targets with systems that can supply solar power on demand through the use of thermal storage. CSP technologies use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. Thermal energy can then be used to produce electricity via a turbine or heat engine driving a generator.

111

LOCATION: Johnson County Sheriff's Office  

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

LOCATION: Johnson County Sheriff's Office Criminalistics Laboratory 11890 Sunset Drive Olathe, Kansas 66061 DATE: JULY 15TH - JULY 18TH, 2013 TUITION: MAFS MEMBERS: 550 Non-MAFS...

112

Aniline-induced nitrosative stress in rat spleen: Proteomic identification of nitrated proteins  

SciTech Connect

Aniline exposure is associated with toxicity to the spleen which is characterized by splenomegaly, hyperplasia, fibrosis, and a variety of sarcomas on chronic exposure in rats. However, mechanisms by which aniline elicits splenotoxic responses are not well understood. Earlier we have shown that aniline exposure leads to increased nitration of proteins in the spleen. However, nitrated proteins remain to be characterized. Therefore, in the current study using proteomic approaches, we focused on characterizing the nitrated proteins in the spleen of aniline-exposed rats. Aniline exposure led to increased tyrosine nitration of proteins, as determined by 2D Western blotting with anti-3-nitrotyrosine specific antibody, compared to the controls. The analyzed nitrated proteins were found in the molecular weight range of 27.7 to 123.6 kDa. A total of 37 nitrated proteins were identified in aniline-treated and control spleens. Among them, 25 were found only in aniline-treated rats, 11 were present in both aniline-treated and control rats, while one was found in controls only. The nitrated proteins identified mainly represent skeletal proteins, chaperones, ferric iron transporter, enzymes, nucleic acids binding protein, and signaling and protein synthesis pathways. Furthermore, aniline exposure led to significantly increased iNOS mRNA and protein expression in the spleen, suggesting its role in increased reactive nitrogen species formation and contribution to increased nitrated proteins. The identified nitrated proteins provide a global map to further investigate alterations in their structural and functional properties, which will lead to a better understanding of the role of protein nitration in aniline-mediated splenic toxicity. - Highlights: > Proteomic approaches are used to identify nitrated proteins in the spleen. > Twenty five nitrated proteins were found only in the spleen of aniline-treated rats. > Aniline exposure led to increased iNOS mRNA and protein expression in the spleen. > Results support the role of nitrosative stress in splenic toxicity of aniline.

Fan Xiuzhen; Wang Jianling [Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555 (United States); Soman, Kizhake V. [Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555 (United States); Ansari, G.A.S. [Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555 (United States); Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555 (United States); Khan, M. Firoze, E-mail: mfkhan@utmb.edu [Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555 (United States)

2011-08-15T23:59:59.000Z

113

Free amino acids, nitrate, and nitrate reductase in nitrogen fixation by soybean nodules  

E-Print Network (OSTI)

(flowering stage, pod development). Plants grown under greenhouse or growth chamber conditions received special nutrient solutions. Specimen con- tainers, 1. 0 liter "pots" with lids (LAB-TER Products, Naperville, Illinois), were arranged in a stacked... measured in the following tissues: Tissue NO Concentration mNols/F. WT. leaves st. erne roo'ts nodules 2. 3 ? 8. 5 4. 3 ? 18. 7 1. 9 ? 42. 3 5. 9 ? 19. 5 Both NO and the enzyme activity could be detected in all tissues; however, only nodules...

Madtes, Paul Clayton

2012-06-07T23:59:59.000Z

114

E-Print Network 3.0 - aqueous magnesium nitrate Sample Search...  

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

in aqueous-phase atmospheric aerosols from... , a fundamental understanding of nitrate ions at the ... Source: Allen, Heather C.- Department of Chemistry, Ohio State University...

115

E-Print Network 3.0 - aqueous nitrate flowsheet Sample Search...  

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

in aqueous-phase atmospheric aerosols from... , a fundamental understanding of nitrate ions at the ... Source: Allen, Heather C.- Department of Chemistry, Ohio State University...

116

E-Print Network 3.0 - ammonium nitrate aerosols Sample Search...  

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

ON MINERAL DUSTS: CRYSTALLINE OR AQUEOUS? Summary: 02138, USA Keywords: Phase transition; Atmospheric Aerosols; Ammonium sulfate; Ammonium nitrate... that of ammonium...

117

E-Print Network 3.0 - aqueous nitrate solutions Sample Search...  

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

Biology and Medicine 23 Evaluation for Biological Reduction of Nitrate and Perchlorate in Brine Water Using Summary: in high salt solution. One culture was capable of reducing up...

118

E-Print Network 3.0 - ammonium nitrates Sample Search Results  

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

an electron acceptor... production, but when either ... Source: Collection: Renewable Energy ; Energy Storage, Conversion and Utilization 10 Nitrate accumulation Ammonium nitrogen...

119

E-Print Network 3.0 - alkaline nitrate solutions Sample Search...  

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

2010 www.atmos-chem-phys.net1039992010 Summary: . The model in- cludes explicit transport of size-resolved mineral dust and its alkalinity, nitrate... in terms of...

120

E-Print Network 3.0 - anaerobic nitrate-dependent oxidation Sample...  

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

of the experiment... nitrate- dependent Fe(II) ... Source: Roden, Eric E. - Department of Geology and Geophysics, University of Wisconsin at Madison Collection: Environmental...

Note: This page contains sample records for the topic "location concentration nitrate" 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

Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Concentrating solar power Concentrating solar power (Redirected from Concentrating Solar Power) Jump to: navigation, search Concentrating Solar Power Basics (The following text is derived from NREL's concentrating solar power information page.)[1] Concentrating solar power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for electricity. CSP plants produce power by first using mirrors to focus sunlight to heat a working fluid. Ultimately, this high-temperature fluid is used to spin a turbine or power an engine that drives a generator. And the final product is electricity. Smaller CSP systems can be located directly where the power is needed. Larger, utility-scale CSP applications provide hundreds of megawatts of electricity for the power grid. Both linear concentrator and power tower

122

Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Concentrating solar power Concentrating solar power (Redirected from - Concentrating Solar Power) Jump to: navigation, search Concentrating Solar Power Basics (The following text is derived from NREL's concentrating solar power information page.)[1] Concentrating solar power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for electricity. CSP plants produce power by first using mirrors to focus sunlight to heat a working fluid. Ultimately, this high-temperature fluid is used to spin a turbine or power an engine that drives a generator. And the final product is electricity. Smaller CSP systems can be located directly where the power is needed. Larger, utility-scale CSP applications provide hundreds of megawatts of electricity for the power grid. Both linear concentrator and power tower

123

Highly Enriched Uranyl Nitrate in Annular Tanks with Concrete Reflection: 1 x 3 Line Array of Nested Pairs of Tanks  

SciTech Connect

A series of seven experiments were performed at the Rocky Flats Critical Mass Laboratory beginning in August, 1980 (References 1 and 2). Highly enriched uranyl nitrate solution was introduced into a 1-3 linear array of nested stainless steel annular tanks. The tanks were inside a concrete enclosure, with various moderator and absorber materials placed inside and/or between the tanks. These moderators and absorbers included boron-free concrete, borated concrete, borated plaster, and cadmium. Two configurations included placing bottles of highly enriched uranyl nitrate between tanks externally. Another experiment involved nested hemispheres of highly enriched uranium placed between tanks externally. These three configurations are not evaluated in this report. The experiments evaluated here are part of a series of experiments, one set of which is evaluated in HEU-SOL-THERM-033. The experiments in this and HEU-SOL-THERM-033 were performed similarly. They took place in the same room and used the same tanks, some of the same moderators and absorbers, some of the same reflector panels, and uranyl nitrate solution from the same location. There are probably additional similarities that existed that are not identified here. Thus, many of the descriptions in this report are either the same or similar to those in the HEU-SOL-THERM-033 report. Seventeen configurations (sixteen of which were critical) were performed during seven experiments; six of those experiments are evaluated here with thirteen configurations. Two configurations were identical, except for solution height, and were conducted to test repeatability. The solution heights were averaged and the two were evaluated as one configuration, which gives a total of twelve evaluated configurations. One of the seventeen configurations was subcritical. Of the twelve critical configurations evaluated, nine were judged as acceptable as benchmarks.

James Cleaver; John D. Bess; Nathan Devine; Fitz Trumble

2009-09-01T23:59:59.000Z

124

Mobile Alternative Fueling Station Locator  

SciTech Connect

The Department of Energy's Alternative Fueling Station Locator is available on-the-go via cell phones, BlackBerrys, or other personal handheld devices. The mobile locator allows users to find the five closest biodiesel, electricity, E85, hydrogen, natural gas, and propane fueling sites using Google technology.

Not Available

2009-04-01T23:59:59.000Z

125

FLUIDIZED BED STEAM REFORMING MINERALIZATION FOR HIGH ORGANIC AND NITRATE WASTE STREAMS FOR THE GLOBAL NUCLEAR ENERGY PARTNERSHIP  

SciTech Connect

Waste streams that may be generated by the Global Nuclear Energy Partnership (GNEP) Advanced Energy Initiative may contain significant quantities of organics (0-53 wt%) and/or nitrates (0-56 wt%). Decomposition of high nitrate streams requires reducing conditions, e.g. organic additives such as sugar or coal, to reduce the NO{sub x} in the off-gas to N{sub 2} to meet the Clean Air Act (CAA) standards during processing. Thus, organics will be present during waste form stabilization regardless of which GNEP processes are chosen, e.g. organics in the feed or organics for nitrate destruction. High organic containing wastes cannot be stabilized with the existing HLW Best Developed Available Technology (BDAT) which is HLW vitrification (HLVIT) unless the organics are removed by preprocessing. Alternative waste stabilization processes such as Fluidized Bed Steam Reforming (FBSR) operate at moderate temperatures (650-750 C) compared to vitrification (1150-1300 C). FBSR converts organics to CAA compliant gases, creates no secondary liquid waste streams, and creates a stable mineral waste form that is as durable as glass. For application to the high Cs-137 and Sr-90 containing GNEP waste streams a single phase mineralized Cs-mica phase was made by co-reacting illite clay and GNEP simulated waste. The Cs-mica accommodates up to 30% wt% Cs{sub 2}O and all the GNEP waste species, Ba, Sr, Rb including the Cs-137 transmutation to Ba-137. For reference, the cesium mineral pollucite (CsAlSi{sub 2}O{sub 6}), currently being studied for GNEP applications, can only be fabricated at {ge} 1000 C. Pollucite mineralization creates secondary aqueous waste streams and NO{sub x}. Pollucite is not tolerant of high concentrations of Ba, Sr or Rb and forces the divalent species into different mineral host phases. The pollucite can accommodate up to 33% wt% Cs{sub 2}O.

Jantzen, C; Michael Williams, M

2008-01-11T23:59:59.000Z

126

Location-aware active signage  

E-Print Network (OSTI)

Three-dimensional route maps, which depict a path from one location to another, can be powerful tools for visualizing and communicating directions. This thesis presents a client-server architecture for generating and ...

Nichols, Patrick James, 1981-

2004-01-01T23:59:59.000Z

127

Correction to ``Nitrate and colloid transport through coarse Hanford sediments under steady state,  

E-Print Network (OSTI)

Correction to ``Nitrate and colloid transport through coarse Hanford sediments under steady state), Correction to ``Nitrate and colloid transport through coarse Hanford sediments under steady state, variably and colloid transport through coarse Hanford sediments under steady state, variably saturated flow'' by Kelly

Flury, Markus

128

Dietary inorganic nitrate reverses features of metabolic syndrome in endothelial nitric oxide synthase-deficient mice  

Science Journals Connector (OSTI)

...mitochondria to affect oxygen consumption, substrate oxidation, and generation...that dietary nitrate fuels a nitrate-nitrite-NO...libitum. Water and food consumption were determined...microreaction purge vessel coupled with a condenser...integrated with the purge vessel and the outlet of the...

Mattias Carlström; Filip J. Larsen; Thomas Nyström; Michael Hezel; Sara Borniquel; Eddie Weitzberg; Jon O. Lundberg

2010-01-01T23:59:59.000Z

129

J. Phycol. 38, 971982 (2002) FIELD ASSAYS FOR MEASURING NITRATE REDUCTASE ACTIVITY IN ENTEROMORPHA SP.  

E-Print Network (OSTI)

and subsequent storage at 80 C preserved NR activity and allowed for later laboratory use of the optimized.; nitrate reductase; macroalgae; Mobile Bay; Ulva sp. Abbreviation: ASW, artificial seawater; FSW, filtered seawater; NR, nitrate reductase Macroalgal production is frequently limited by the availability

Sherman, Tim

130

Nitrate-responsive miR393/AFB3 regulatory module controls root system architecture in  

E-Print Network (OSTI)

environmental conditions is the modulation of root system architecture (RSA) in response to nitrate supplyNitrate-responsive miR393/AFB3 regulatory module controls root system architecture in ArabidopsisR393/AFB3 is a unique N- responsive module that controls root system architecture in response

Green, Pamela

131

Stainless steel corrosion by molten nitrates : analysis and lessons learned.  

SciTech Connect

A secondary containment vessel, made of stainless 316, failed due to severe nitrate salt corrosion. Corrosion was in the form of pitting was observed during high temperature, chemical stability experiments. Optical microscopy, scanning electron microscopy and energy dispersive spectroscopy were all used to diagnose the cause of the failure. Failure was caused by potassium oxide that crept into the gap between the primary vessel (alumina) and the stainless steel vessel. Molten nitrate solar salt (89% KNO{sub 3}, 11% NaNO{sub 3} by weight) was used during chemical stability experiments, with an oxygen cover gas, at a salt temperature of 350-700 C. Nitrate salt was primarily contained in an alumina vessel; however salt crept into the gap between the alumina and 316 stainless steel. Corrosion occurred over a period of approximately 2000 hours, with the end result of full wall penetration through the stainless steel vessel; see Figures 1 and 2 for images of the corrosion damage to the vessel. Wall thickness was 0.0625 inches, which, based on previous data, should have been adequate to avoid corrosion-induced failure while in direct contact with salt temperature at 677 C (0.081-inch/year). Salt temperatures exceeding 650 C lasted for approximately 14 days. However, previous corrosion data was performed with air as the cover gas. High temperature combined with an oxygen cover gas obviously drove corrosion rates to a much higher value. Corrosion resulted in the form of uniform pitting. Based on SEM and EDS data, pits contained primarily potassium oxide and potassium chromate, reinforcing the link between oxides and severe corrosion. In addition to the pitting corrosion, a large blister formed on the side wall, which was mainly composed of potassium, chromium and oxygen. All data indicated that corrosion initiated internally and moved outward. There was no evidence of intergranular corrosion nor were there any indication of fast pathways along grain boundaries. Much of the pitting occurred near welds; however this was the hottest region in the chamber. Pitting was observed up to two inches above the weld, indicating independence from weld effects.

Kruizenga, Alan Michael

2011-09-01T23:59:59.000Z

132

Photovoltaic concentrator initiative: Concentrator cell development  

SciTech Connect

This project involves the development of a large-area, low-cost, high-efficiency concentrator solar cell for use in the Entech 22-sun linear-focus Fresnel lens concentrator system. The buried contact solar cell developed at the University of New South Wales was selected for this project. Both Entech and the University of New South Wales are subcontractors. This annual report presents the program efforts from November 1990 through December 1991, including the design of the cell, development of a baseline cell process, and presentation of the results of preliminary cell processing. Important results include a cell designed for operation in a real concentrator system and substitution of mechanical grooving for the previously utilized laser scribing.

Wohlgemuth, J.H.; Narayanan, S. [Solarex Corp., Frederick, MD (US)

1993-05-01T23:59:59.000Z

133

Methane, Nonmethane Hydrocarbons, Alkyl Nitrates, and Chlorinated Carbon  

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

Atmospheric Trace Gases in Whole-Air Samples Atmospheric Trace Gases in Whole-Air Samples Methane, Nonmethane Hydrocarbons, Alkyl Nitrates, and Chlorinated Carbon Compounds including 3 Chlorofluorocarbons (CFC-11, CFC-12, and CFC-113) in Whole-air Samples graphics Graphics data Data Investigator Donald Blake Department of Chemistry, University of California Irvine, California, 92697 USA Period of Record April 1979 - December 2012 Methods Whole-air samples are collected in conditioned, evacuated, 2-L stainless steel canisters; each canister is filled to ambient pressure over a period of about 1 minute (approximately 20 seconds to 2 minutes). These canisters are returned to the University of California at Irvine for chromatographic analysis. Analysis for methane includes gas chromatography with flame ionization, as

134

Role of Nitrate in Conditioning Aquifer Sediments for Technetium Bioreduction  

Science Journals Connector (OSTI)

Earth System Science Institute, School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, U.K., Williamson Research Centre for Molecular Environmental Science, School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, Manchester, M13 9PL, U.K., and Centre for Radiochemistry Research, The University of Manchester, Manchester, M13 9PL, U.K. ... These results have implications for Tc-cycling in contaminated environments where nitrate has been considered undesirable, but where it may enhance Fe(III)-reduction via a novel pH “conditioning” step. ... Wilkins, M. J.; Livens, F. R.; Vaughan, D. J.; Beadle, I.; Lloyd, J. R. The influence of microbial redox cycling on radionuclide mobility in the subsurface at a low-level radioactive waste storage site Geobiology 2007, 5, 293– 301 ...

Gareth T. W. Law; Andrea Geissler; Christopher Boothman; Ian T. Burke; Francis R. Livens; Jonathan R. Lloyd; Katherine Morris

2009-11-10T23:59:59.000Z

135

FUMIGATION, GROSS NITROGEN TRANSFORMATIONS, N-15, NITRATE, RATES, SOIL  

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

FUMIGATION, GROSS NITROGEN TRANSFORMATIONS, N-15, FUMIGATION, GROSS NITROGEN TRANSFORMATIONS, N-15, NITRATE, RATES, SOIL 1909 Pushnik, J.C., R.S. Demaree, J.L.J. Houpis, W.B. Flory, S.M. Bauer, and P.D. Anderson. 1995. The effect of elevated carbon dioxide on a Sierra-Nevadan dominant species: Pinus ponderosa. Journal of Biogeography 22(2-3):249-254. The impact of increasing atmospheric CO2 has not been fully evaluated on western coniferous forest species. Two year old seedlings of Pinus ponderosa were grown in environmentally controlled chambers under increased CO2 conditions (525 mu L L(-1) and 700 mu L L(-1)) for 6 months. These trees exhibited morphological, physiological and biochemical alterations when compared to our controls (350 mu L L(- 1)). Analysis of whole plant biomass distribution has shown no

136

SunShot Initiative: Baseload Concentrating Solar Power Generation  

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

Concentrating Solar Power Generation Concentrating Solar Power Generation In 2010, DOE issued the Baseload Concentrating Solar Power (CSP) Generation funding opportunity announcement (FOA). The following projects were selected under this competitive solicitation: Abengoa: Advanced Nitrate Salt Central Receiver Power Plant eSolar: Modular and Scalable Baseload Molten Salt Plant Conceptual Design and Feasibility General Atomics: Baseload CSP Generation Integrated with Sulfur-Based Thermochemical Heat Storage HiTek: Low-Cost Heliostat Development Infinia: Innovative Phase Change Thermal Energy Storage Solution for Baseload Power PPG: Next-Generation Low-Cost Reflector Rocketdyne: Solar Power Tower Improvements with the Potential to Reduce Costs SENER: High-Efficiency Thermal Storage System for Solar Plants

137

[Task 1.] Biodenitrification of low nitrate solar pond waters using sequencing batch reactors. [Task 2.] Solidification/stabilization of high strength and biodenitrified heavy metal sludges with a Portland cement/flyash system  

SciTech Connect

Process wastewater and sludges were accumulated on site in solar evaporation ponds during operations at the Department of Energy's Rocky Flats Plant (DOE/RF). Because of the extensive use of nitric acid in the processing of actinide metals, the process wastewater has high concentrations of nitrate. Solar pond waters at DOE/RF contain 300-60,000 mg NO{sub 3}{sup {minus}}/L. Additionally, the pond waters contain varying concentrations of many other aqueous constituents, including heavy metals, alkali salts, carbonates, and low level radioactivity. Solids, both from chemical precipitation and soil material deposition, are also present. Options for ultimate disposal of the pond waters are currently being evaluated and include stabilization and solidification (S/S) by cementation. Removal of nitrates can enhance a wastes amenability to S/S, or can be a unit operation in another treatment scheme. Nitrate removal is also a concern for other sources of pollution at DOE/RF, including contaminated groundwater collected by interceptor trench systems. Finally, nitrate pollution is a problem at many other DOE facilities where actinide metals were processed. The primary objective of this investigation was to optimize biological denitrification of solar pond waters with nitrate concentrations of 300--2,100 mg NO{sub 3}{sup {minus}}/L to below the drinking water standard of 45 mg NO{sub 3}{sup {minus}}/L (10 mg N/L). The effect of pH upon process stability and denitrification rate was determined. In addition, the effect Cr(VI) on denitrification and fate of Cr(VI) in the presence of denitrifying bacteria was evaluated.

Figueroa, L.; Cook, N.E.; Siegrist, R.L.; Mosher, J.; Terry, S.; Canonico, S.

1995-09-22T23:59:59.000Z

138

Selective and quantitative nitrate electroreduction to ammonium using a porous copper electrode in an electrochemical flow cell  

E-Print Network (OSTI)

,version1-10Jul2014 #12;3 1. Introduction Nitrate ions (NO3 - ) contamination of ground and surface water and physiochemical methods are used for nitrate removal from contaminated water but show drastic limits are costly [10] and produce secondary brine wastes, because the nitrate are only separated but not destroyed

Paris-Sud XI, Université de

139

Critical Parameters of Complex Geometries of Intersecting Cylinders Containing Uranyl Nitrate Solution  

SciTech Connect

About three dozen previously unreported critical configurations are presented for very complex geometries filled with high concentration enriched uranyl nitrate solution. These geometries resemble a tall, thin Central Column (or trunk of a ''tree'') having long, thin arms (or ''branches'') extending up to four directions off the column. Arms are equally spaced from one another in vertical planes, and that spacing ranges from arms in contact to quite wide spacings. Both the Central Column and the many different arms are critically safe by themselves with each, alone, is filled with fissile solution; but, in combination, criticality occurs due to the interactions between arms and the column. Such neutronic interactions formed the principal focus of this study. While these results are fresh to the nuclear criticality safety industry and to those seeking novel experiments against which to validate computer codes, the experiments, themselves, are not recent. Over 100 experiments were performed at the Rocky Flats Critical Mass Laboratory between September, 1967, and February of the following year.

J. B. Briggs (INEEL POC); R. E. Rothe

1999-06-14T23:59:59.000Z

140

Location logistics of industrial facilities  

E-Print Network (OSTI)

is not growing rapidly or 1s very small, they may not carry a staff from wh1ch the necessary people for a 25 s1te selection team can be drawn. Also, quite possibly, a company may not be involved in the site selection process for expansion. Instead, they may... location and site selection. This data was gathered through library research, atten- dance of various industr1al development conferences, sol1citation of mater1als from individuals currently involved with industrial facil1ties location, and various...

Hammack, William Eugene

2012-06-07T23:59:59.000Z

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


141

Major DOE Biofuels Project Locations  

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

Biofuels Project Locations Biofuels Project Locations BlueFire Ethanol Biochemical Municipal Solid Waste (Mecca, CA) Poet Biochemical Corn Cob/Corn Fiber (Emmetsburg, IA) Lignol Biochemical Woody Biomass- Ag Residues (Grand Junction, CO) ICM Biochemical Switchgrass, Forage Sorghum, Stover (St. Joseph, MO) Abengoa Biochemica Agricultural Residue (Hugoton, KS) DOE Joint Bioenergy Institute (Berkeley, CA) DOE Great Lakes Bioenergy Research Center (Madison, WI) DOE Bioenergy Science Center (Oak Ridge, TN) NewPage Thermochemical Woody Biomass - Mill Residues (Wisconsin Rapids, WI) Range Fuels Thermochemical Woody Waste (Soperton, GA) DSM Innovation Center Biochemical Various (Parsippany, NJ) Novozymes Biochemical Various (Davis, CA) Genencor Biochemical Various (Palo Alto, CA) Verenium Corp Biochemical Various (San Diego, CA)

142

In-situ remediation of nitrate-contaminated ground water by electrokinetics/iron wall processes  

Science Journals Connector (OSTI)

The feasibility of using electrokinetics coupled with a zero valent iron (Fe0) treatment wall to abiotically remediate nitrate-contaminated soils was investigated. Upon completion of each test run, the contaminated soil specimen was sliced into five parts and analyzed for nitrate-nitrogen, ammonia-nitrogen and nitrite-nitrogen. Nitrogen mass balance was used to determine the major transformation products. In control experiments where only electrokinetics was used at various constant voltages, 25 to 37% of the nitrate-nitrogen was transformed. The amount of nitrate-nitrogen transformed improved when a Fe0 wall (20 g or about 8–10% by weight) was placed near the anode. For test runs at various constant voltages, the amount of nitrate-nitrogen transformed ranged from 54 to 87%. By switching to constant currents, the amount of nitrate-nitrogen — transformed was about 84 to 88%. The major transformation products were ammonia-nitrogen and nitrogen gases. Nitrite-nitrogen was less than 1% in all experimental runs. Two localized pH conditions exist in the system, a low pH region near the anode and a high pH region near the cathode. Placing of an iron wall near the anode increases the pH in that area as time increases. Movement of the acid front did not flush across the cathode. This research has demonstrated that the electrokinetics/iron wall process can be used to remediate nitrate-contaminated groundwater.

Chin F. Chew; Tian C. Zhang

1998-01-01T23:59:59.000Z

143

Building Address Locations -Assumes entire  

E-Print Network (OSTI)

Housman Building 80 E. Concord St R BU School of Medicine, Instructional Building 80 E. Concord St L BU JBuilding Address Locations - Assumes entire building unless noted Designation Submit through* 560, 4 BU Crosstown Center 801 Massachusetts Ave Floor 1, 2 BMC BCD Building 800 Harrison Avenue BCD BMC

Guenther, Frank

144

Conversion and Blending Facility highly enriched uranium to low enriched uranium as uranyl nitrate hexahydrate. Revision 1  

SciTech Connect

This Conversion and Blending Facility (CBF) will have two missions: (1) convert HEU materials to pure HEU uranyl nitrate (UNH) and (2) blend pure HEU UNH with depleted and natural UNH to produce HEU UNH crystals. The primary emphasis of this blending operation will be to destroy the weapons capability of large, surplus stockpiles of HEU. The blended LEU product can only be made weapons capable again by the uranium enrichment process. To the extent practical, the chemical and isotopic concentrations of blended LEU product will be held within the specifications required for LWR fuel. Such blended LEU product will be offered to the United States Enrichment Corporation (USEC) to be sold as feed material to the commercial nuclear industry. Otherwise, blended LEU Will be produced as a waste suitable for storage or disposal.

NONE

1995-07-05T23:59:59.000Z

145

Assimilation of surface data in a one-dimensional physical-biogeochemical model of the surface ocean: 2. Adjusting a simple trophic model to chlorophyll, temperature, nitrate, and pCO{sub 2} data  

SciTech Connect

This paper builds on a previous work which produced a constrained physical-biogeochemical model of the carbon cycle in the surface ocean. Three issues are addressed: (1) the results of chlorophyll assimilation using a simpler trophic model, (2) adjustment of parameters using the simpler model and data other than surface chlorophyll concentrations, and (3) consistency of the main carbon fluxes derived by the simplified model with values from the more complex model. A one-dimensional vertical model coupling the physics of the ocean mixed layer and a description of biogeochemical processes with a simple trophic model was used to address these issues. Chlorophyll concentration, nitrate concentration, and temperature were used to constrain the model. The surface chlorophyll information was shown to be sufficient to constrain primary production within the photic layer. The simultaneous assimilation of chlorophyll, nitrate, and temperature resulted in a significant improvement of model simulation for the data used. Of the nine biological and physical parameters which resulted in significant variations of the simulated chlorophyll concentration, seven linear combinations of the mode parameters were constrained. The model fit was an improvement on independent surface chlorophyll and nitrate data. This work indicates that a relatively simple biological model is sufficient to describe carbon fluxes. Assimilation of satellite or climatological data coulc be used to adjust the parameters of the model for three-dimensional models. It also suggests that the main carbon fluxes driving the carbon cycle within surface waters could be derived regionally from surface information. 38 refs., 16 figs., 7 tabs.

Prunet, P.; Minster, J.F.; Echevin, V. [Laboratoire CNES-CNRS, Toulouse (France)] [and others] [Laboratoire CNES-CNRS, Toulouse (France); and others

1996-03-01T23:59:59.000Z

146

Scattering Solar Thermal Concentrators  

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

is a rendering of a scattering solar concentrator. Light collected by a cylindrical Fresnel lens is focused within a curved glass "guide" sheet, where it is redirected into...

147

Sandia National Laboratories: Molten Nitrate Salt Initial Flow...  

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

David Gill, ddgill@sandia.gov, (505)-844-1524. Tagged with: Concentrating Solar Power * CSP * Molten Salt * molten salt test loop * National Solar Thermal Test Facility * NSTTF *...

148

station locations | OpenEI  

Open Energy Info (EERE)

00 00 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142288500 Varnish cache server station locations Dataset Summary Description Alternative fueling stations are located throughout the United States and their availability continues to grow. The Alternative Fuels Data Center (AFDC) maintains a website where you can find alternative fuels stations near you or on a route, obtain counts of alternative fuels stations by state, Source Alternative Fuels Data Center Date Released December 13th, 2010 (4 years ago) Date Updated December 13th, 2010 (4 years ago) Keywords alt fuel alternative fuels alternative fuels stations biodiesel CNG compressed natural gas E85 Electricity ethanol

149

Concentration in Green Design  

E-Print Network (OSTI)

, energy, infrastructure or transport. Participants in this specialization area work closely with the GreenConcentration in Green Design Research and Education Opportunities Carnegie Mellon University Civil and Environmental Engineering www.ce.cmu.edu M.S. Concentration Green Design - Course Only Track As an extension

Shewchuk, Jonathan

150

NREL: Concentrating Solar Power Research Home Page  

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

A collage of Concentrating Solar Power photographs. The first photo shows a dish-engine solar system. The second is of a SAIC Stirling dish collector. And the third photo shows a SkyTrough solar concentrator located on a mesa top. A collage of Concentrating Solar Power photographs. The first photo shows a dish-engine solar system. The second is of a SAIC Stirling dish collector. And the third photo shows a SkyTrough solar concentrator located on a mesa top. NREL collaborates with industry to further the research and development (R&D) of concentrating solar power (CSP) plant and solar thermal technologies. NREL's projects in concentrating solar power focus on components R&D and systems analysis related to power tower and parabolic trough technologies: Collectors Receivers Power block Thermal energy storage Analysis. In addition, NREL has received funding through the following competitively awarded projects: 10-megawatt supercritical carbon dioxide (s-CO2) turbine test Near-blackbody, enclosed-particle receiver integrated with a

151

Bedding and Within-Pen Location Effects on Feedlot Pen Runoff Quality Using a Rainfall Simulator  

E-Print Network (OSTI)

and 1999. Bedding had a significant (P # 0.05) effect on NH4­N concentration and load in 1999, SO4 load in 1998, SO4 concentration and load in 1999, and total coliforms in both years; where these three reactive phosphorus (DRP), total P, and NH4­N concentrations and loads at the bedding pack location in wood

Selinger, Brent

152

Modeling of the simultaneous extraction of nitric acid and uranyl nitrate with tri-n-butyl phosphate. Application to extraction operation  

SciTech Connect

A mathematical model developed for the equilibrium HNO{sub 3}-UO{sub 2}(NO{sub 3}){sub 2}-tri-n-butyl phosphate (TBP)-diluent is the basis of the computation of distribution isotherms. The isotherms are used to study the influence of TBP concentration on two chosen operation parameters, distribution coefficients and number of theoretical stages, for the selected flow sheets. It is established that an increase in TBP concentration leads to a decrease in the number of theoretical stages for the extraction flow sheets but to their increase for the striping flow sheets. Given diagrams can be used to determine the efficiency of extraction processes. Agreement with available literature calculations on the number of theoretical stages supports the use of the model in the computation of distribution isotherms, of the system quoted above, in a wide range of nitric acid, uranyl nitrate, and TBP concentrations.

Comor, J.J.; Tolic, A.S.; Kopecni, M.M.; Petkovic, D.M. [Vinca Inst. of Nuclear Sciences, Belgrade (Yugoslavia). Chemical Dynamics Lab.] [Vinca Inst. of Nuclear Sciences, Belgrade (Yugoslavia). Chemical Dynamics Lab.

1999-01-01T23:59:59.000Z

153

Development of electrochemical denitrification from waste water containing ammonium nitrate  

SciTech Connect

The authors developed processes to dentrify waste water containing ammonium nitrate discharged from the nuclear fuel manufacturing works and to recover nitric acid and ammonia. For denitrification they applied the operating method and the conditions of operation to make 0.4mM or less from NH{sub 4}NO{sub 3} waste water of 1.5 M by 3 stages of electrodialysis cells. To recover nitric acid and ammonium water, they separated HNO{sub 3} solution of 6 M and NH{sub 4}OH solution with one unit of electrolysis cell, then absorbed NH{sub 3} gas from NH{sub 4}OH solution with water and applied the condition of operation to recover 8 M NH{sub 4}OH solution. The authors demonstrated that treatment and recovery can be carried out stably with actual waste water with a system through the combination of previously mentioned electrodialysis cells, electrolysis cells and an ammonia gas absorber. At present they are planning a plant where NH{sub 4}NO{sub 3} waste water of 4,500 mol can be treated per day.

Sawa, Toshio; Hirose, Yasuo; Ishii, Yoshinori; Takatsudo, Atsushi; Wakasugi, Kazuhico; Hayashi, Hiroshi

1995-12-31T23:59:59.000Z

154

Hugoniot and Shock Initiation Studies of Isopropyl Nitrate  

Science Journals Connector (OSTI)

Isopropyl nitrate (IPN) is a liquid explosive of rather low energy. We have measured the sound speed and used it in the universal liquid Hugoniot to produce an estimated Hugoniot for this material. Gas?gun?driven multiple?magnetic?gauge measurements were made to measure a Hugoniot state at 6 GPa; it was in good agreement with the prediction. Two similar experiments were conducted at higher pressure inputs to study the shock?to?detonation transition in IPN; the high inputs required for initiation necessitated the use of a two?stage gun. One experiment with an input of 9.0 GPa into the IPN produced a run to detonation of about 3 mm and the in?situ particle velocity profiles showed the expected homogeneous initiation behavior of a growing wave behind the shock front that overtakes the front and decays to a steady detonation. The reactive wave in the shocked IPN appears to have achieved a steady superdetonation in both of the initiation experiments. This is the first time a steady superdetonation has been measured with in?situ gauges.

S. A. Sheffield; L. L. Davis; M. R. Baer; Ray Engelke; R. R. Alcon; A. M. Renlund

2002-01-01T23:59:59.000Z

155

Hugoniot and shock initiation studies of isopropyl nitrate  

SciTech Connect

Isopropyl nitrate (IPN) is a liquid explosive of rather low energy. We have measured the sound speed and used it in the universal liquid Hugoniot to produce an estimated Hugoniot for this material. Gas-gun-driven, multiple-magnetic-gauge measurements were made to measure a Hugoniot state at 6 GPa; it was in good agreement with the prediction. Two similar experiments were conducted at higher pressure inputs to study the shock-to-detonation transition in IPN; the high inputs required for initiation necessitated the use of a two-stage gun. One experiment with an input of 9.0 GPa into the IPN produced a run to detonation of about 3 mm and the in-situ particle velocity profiles showed the expected homogeneous initiation behavior of a growing wave behind the shock front that overtakes the front and decays to a steady detonation. The reactive wave in the shocked IPN appears to have achieved a steady superdetonation in both of the initiation experiments. This is the first time a steady superdetonation has been measured with in-situ gauges.

Sheffield, S. A. (Stephen A.); Davis, L. L. (Lloyd L.); Baer, M. R. (Mel R.); Engelke, R. P. (Raymond P.); Alcon, R. R. (Robert R.); Renlund, Anita Mariana

2001-01-01T23:59:59.000Z

156

SunShot Initiative: Advanced Nitrate Salt Central Receiver Power Plant  

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

Advanced Nitrate Salt Central Receiver Power Plant Advanced Nitrate Salt Central Receiver Power Plant Abengoa logo Photo of two lit towers surrounded by much smaller blue flat plates that are mounted on the ground. Commercial central receiver plant designs Abengoa, under the Baseload CSP FOA, will demonstrate a 100-megawatt electrical (MWe) central receiver plant using nitrate salt as the receiver coolant, thermal storage medium, and heat transport fluid in the steam generator. Approach The plan is to operate the plant at full load for 6,400 hours each year using only solar energy. Abengoa is working to create a team of suppliers capable of deploying a commercially ready nitrate salt central receiver technology that can be competitive in the current power marketplace. Innovation Abengoa is developing a new molten-salt power tower technology with a surround heliostat field. Key components include:

157

A Conceptual Nitrate Transport Model and Its Application at Different Scales  

Science Journals Connector (OSTI)

Liu et al. [12...] reported the calibration of a diffuse nitrate model (the DNMT model) at White Cart Water Catchment against the observed water quality...K 0 (the hydraulic conductivity at grou...

Shuming Liu; Peter Tucker; Martin Mansell

2010-08-01T23:59:59.000Z

158

Spring-neap modulation of internal tide mixing and vertical nitrate ...  

Science Journals Connector (OSTI)

Sep 1, 2007 ... Measurements of the intra-tidal and spring–neap variation in the vertical flux of nitrate into ... ultimately dissipates the energy of the internal tide.

2007-08-13T23:59:59.000Z

159

Ethylene oxidation by lithium nitrate in the presence of palladium acetate in acetic acid  

Science Journals Connector (OSTI)

Data are reported on variations of the gas phase volume and product accumulation in ethylene oxidation by lithium nitrate in acetic acid solutions, catalyzed by palladium acetate. An assumption is made on the rou...

N. I. Kuznetsova; A. F. Danilyuk…

160

Water purification of nitrates by low-pressure reverse osmosis method  

Science Journals Connector (OSTI)

The paper has investigated possibilities and basic regularities of water purification of nitrates by low pressure reverse osmosis. The negative influence of chlorides and sulfates ... made on expediency of using ...

V. V. Goncharuk; V. O. Osipenko…

2013-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Sodium-Copper Exchange on Wyoming Montmorillonite in Chloride, Perchlorate, Nitrate, and Sulfate Solutions  

E-Print Network (OSTI)

Sodium-Copper Exchange on Wyoming Montmorillonite in Chloride, Perchlorate, Nitrate, and Sulfate. The copper exchange capacity (CuEC) and Na-Cu exchange reactions on Wyoming montmo- rillonite were studied

Sparks, Donald L.

162

Application of Artificially Immobilized Microorganisms to Nitrate Removal from Drinking Water  

E-Print Network (OSTI)

to Nitrate Removal from Drinking Water By Sean X. Liu andFor biological treatment of drinking water, several crucialalginate gel beads to drinking water treatment has proved to

Liu, Sean X; Hermanowicz, Slawomir W

1997-01-01T23:59:59.000Z

163

Scattering Solar Thermal Concentrators  

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

"This fact sheet describes a scattering solar thermal concentrators project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D award program. The team, led by the Pennsylvania State University, is working to demonstrate a new, scattering-based approach to concentrating sunlight that aims to improve the overall performance and reliability of the collector field. The research team aims to show that scattering solar thermal collectors are capable of achieving optical performance equal to state-of-the-art parabolic trough systems, but with the added benefits of immunity to wind-load tracking error, more efficient land use, and utilization of stationary receivers."

164

Concentrating photovoltaic solar panel  

DOE Patents (OSTI)

The present invention relates to photovoltaic power systems, photovoltaic concentrator modules, and related methods. In particular, the present invention features concentrator modules having interior points of attachment for an articulating mechanism and/or an articulating mechanism that has a unique arrangement of chassis members so as to isolate bending, etc. from being transferred among the chassis members. The present invention also features adjustable solar panel mounting features and/or mounting features with two or more degrees of freedom. The present invention also features a mechanical fastener for secondary optics in a concentrator module.

Cashion, Steven A; Bowser, Michael R; Farrelly, Mark B; Hines, Braden E; Holmes, Howard C; Johnson, Jr., Richard L; Russell, Richard J; Turk, Michael F

2014-04-15T23:59:59.000Z

165

A survey of computational location privacy  

Science Journals Connector (OSTI)

This is a literature survey of computational location privacy, meaning computation-based privacy mechanisms that treat location data as geometric information. This definition includes privacy-preserving algorithms like anonymity and obfuscation as well ... Keywords: Context, Location, Privacy

John Krumm

2009-08-01T23:59:59.000Z

166

Location and Hours | ornl.gov  

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

Location and Hours Location The ORNL Research Library is located off the central corridor of Bldg. 4500N on the main ORNL campus. Hours The library is open 24 hours, seven days a...

167

Concentration Distributions during Pulse Jet Mixing  

SciTech Connect

Obtaining real-time, in situ slurry concentration measurements during unsteady mixing can provide increased understanding into mixer performance. During recent tests an ultrasonic attenuation sensor was inserted into a mixing vessel to measure the slurry concentration during unsteady mixing in real time during pulse jet mixer operation. These pulse jet mixing tests to suspend noncohesive solids in Newtonian liquid were conducted at three geometric scales. To understand the solids suspension process and resulting solids distribution, the concentration of solids in the cloud was measured at various elevations and radial positions during the pulse jet mixer cycle. In the largest scale vessel, concentration profiles were measured at three radial locations: r = 0, 0.5 and 0.9 R where R is the vessel radius. These radial concentration data are being analyzed to provide a model for predicting concentration as a function of elevation. This paper describes pulse jet mixer operation, provides a description of the concentration probe, and presents transient concentration data obtained at three radial positions: in the vessel center (O R), midway between the center and the wall (0.5 R) and near the vessel wall (0.9 R) through out the pulse to provide insight into pulse jet mixer performance.

Bamberger, Judith A.; Meyer, Perry A.

2010-08-05T23:59:59.000Z

168

Vacuum State/Refiner/Location  

U.S. Energy Information Administration (EIA) Indexed Site

Vacuum Vacuum State/Refiner/Location Barrels per Atmospheric Crude Oil Distillation Capacity Barrels per Operating Idle Operating Idle Downstream Charge Capacity Thermal Cracking Delayed Fluid Coking Visbreaking Other/Gas Calendar Day Stream Day Distillation Coking Oil Table 3. Capacity of Operable Petroleum Refineries by State as of January 1, 2013 (Barrels per Stream Day, Except Where Noted) ......................................................... Alabama 120,100 0 130,000 0 48,000 32,000 0 0 0 Goodway Refining LLC 4,100 0 5,000 0 0 0 0 0 0 ....................................................................................................................................................................................................

169

Optimization of Stationary Concentrators  

Science Journals Connector (OSTI)

In this chapter, the main characteristics of stationary nonimaging solar concentrators are optimized in respect of the latitude of their installation and the direct fraction of solar radiation incident on the ...

Dr. Ralf Leutz; Dr. Akio Suzuki

2001-01-01T23:59:59.000Z

170

Concentrator silicon cell research  

SciTech Connect

This project continued the developments of high-efficiency silicon concentrator solar cells with the goal of achieving a cell efficiency in the 26 to 27 percent range at a concentration level of 150 suns of greater. The target efficiency was achieved with the new PERL (passivated emitter, rear locally diffused) cell structure, but only at low concentration levels around 20 suns. The PERL structure combines oxide passivation of both top and rear surfaces of the cells with small area contact to heavily doped regions on the top and rear surfaces. Efficiency in the 22 to 23 percent range was also demonstrated for large-area concentrator cells fabricated with the buried contact solar cell processing sequence, either when combined with prismatic covers or with other innovative approaches to reduce top contact shadowing. 19 refs.

Green, M.A.; Wenham, S.R.; Zhang, F.; Zhao, J.; Wang, A. [New South Wales Univ., Kensington (Australia). Solar Photovoltaic Lab.

1992-04-01T23:59:59.000Z

171

Concentrated Thermoelectric Power  

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

and night using no moving parts at both the utility and distributed scale. Concentrating Solar Power MASSACHUSETTS INSTITUTE OF TECHNOLOGY PROGRAM: SunShot CSP R&D 2012 TOPIC:...

172

Mobile Truck Stop Electrification Site Locator  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Mobile Truck Stop Electrification Site Locator Location Enter a city, postal code, or address Search Caution: The AFDC recommends that users verify that sites are open prior to...

173

Energy Department Launches Alternative Fueling Station Locator...  

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

Launches Alternative Fueling Station Locator App Energy Department Launches Alternative Fueling Station Locator App November 7, 2013 - 11:16am Addthis As part of the Obama...

174

Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Concentrating Solar Power Basics (The following text is derived from NREL's concentrating solar power information page.)[1] Concentrating solar power (CSP) offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for electricity. CSP plants produce power by first using mirrors to focus sunlight to heat a working fluid. Ultimately, this high-temperature fluid is used to spin a turbine or power an engine that drives a generator. And the final product is electricity. Smaller CSP systems can be located directly where the power is needed. Larger, utility-scale CSP applications provide hundreds of megawatts of electricity for the power grid. Both linear concentrator and power tower systems can be easily integrated with thermal storage, helping to generate

175

Joined concentric tubes  

DOE Patents (OSTI)

Tubular objects having two or more concentric layers that have different properties are joined to one another during their manufacture primarily by compressive and friction forces generated by shrinkage during sintering and possibly mechanical interlocking. It is not necessary for the concentric tubes to display adhesive-, chemical- or sinter-bonding to each other in order to achieve a strong bond. This facilitates joining of dissimilar materials, such as ceramics and metals.

DeJonghe, Lutgard; Jacobson, Craig; Tucker, Michael; Visco, Steven

2013-01-01T23:59:59.000Z

176

Major DOE Biofuels Project Locations  

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

Biofuels Biofuels Project Locations Pacific Ethanol (Boardman, OR) BlueFire Ethanol (Corona, CA) POET (Emmetsburg, IA) Lignol Innovations (Commerce City, CO) ICM (St. Joseph, MO) Abengoa (Hugoton, KS) DOE Joint Bioenergy Institute (Berkeley, CA) DOE Great Lakes Bioenergy Research Center (Madison, WI) DOE Bioenergy Science Center (Oak Ridge, TN) NewPage (Wisconsin Rapids, WI) Range Fuels (Soperton, GA) DSM Innovation Center (Parsippany, NJ) Novozymes (Davis, CA) Genencor (Palo Alto, CA) Verenium Corp (San Diego, CA) Dupont (Wilmington, DE) Mascoma (Lebanon, NH) Cargill Inc (Minneapolis, MN) Regional Partnerships South Dakota State University, Brookings, SD Cornell University, Ithaca, NY University of Tennessee, Knoxville, TN Oklahoma State University, Stillwater, OK Oregon State University, Corvallis, OR

177

ARM - Measurement - Aerosol concentration  

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

concentration concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol concentration A measure of the amount of aerosol particles (e.g. number, mass, volume) per unit volume of air. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments AOS : Aerosol Observing System CSPHOT : Cimel Sunphotometer CPC : Condensation Particle Counter IAP : In-situ Aerosol Profiles (Cessna Aerosol Flights) TDMA : Tandem Differential Mobility Analyzer

178

Impaired mitochondrial respiration and protein nitration in the rat hippocampus after acute inhalation of combustion smoke  

SciTech Connect

Survivors of massive inhalation of combustion smoke endure critical injuries, including lasting neurological complications. We have previously reported that acute inhalation of combustion smoke disrupts the nitric oxide homeostasis in the rat brain. In this study, we extend our findings and report that a 30-minute exposure of awake rats to ambient wood combustion smoke induces protein nitration in the rat hippocampus and that mitochondrial proteins are a sensitive nitration target in this setting. Mitochondria are central to energy metabolism and cellular signaling and are critical to proper cell function. Here, analyses of the mitochondrial proteome showed elevated protein nitration in the course of a 24-hour recovery following exposure to smoke. Mass spectrometry identification of several significantly nitrated mitochondrial proteins revealed diverse functions and involvement in central aspects of mitochondrial physiology. The nitrated proteins include the ubiquitous mitochondrial creatine kinase, F1-ATP synthase {alpha} subunit, dihydrolipoamide dehydrogenase (E3), succinate dehydrogenase Fp subunit, and voltage-dependent anion channel (VDAC1) protein. Furthermore, acute exposure to combustion smoke significantly compromised the respiratory capacity of hippocampal mitochondria. Importantly, elevated protein nitration and reduced mitochondrial respiration in the hippocampus persisted beyond the time required for restoration of normal oxygen and carboxyhemoglobin blood levels after the cessation of exposure to smoke. Thus, the time frame for intensification of the various smoke-induced effects differs between blood and brain tissues. Taken together, our findings suggest that nitration of essential mitochondrial proteins may contribute to the reduction in mitochondrial respiratory capacity and underlie, in part, the brain pathophysiology after acute inhalation of combustion smoke.

Lee, Heung M.; Reed, Jason; Greeley, George H. [Department of Surgery, University of Texas Medical Branch (United States); Englander, Ella W. [Department of Surgery, University of Texas Medical Branch (United States); Shriners Hospitals for Children, Galveston, TX (United States)], E-mail: elenglan@utmb.edu

2009-03-01T23:59:59.000Z

179

Uranyl nitrate-exposed rat alveolar macrophages cell death: Influence of superoxide anion and TNF ? mediators  

SciTech Connect

Uranium compounds are widely used in the nuclear fuel cycle, military and many other diverse industrial processes. Health risks associated with uranium exposure include nephrotoxicity, cancer, respiratory, and immune disorders. Macrophages present in body tissues are the main cell type involved in the internalization of uranium particles. To better understand the pathological effects associated with depleted uranium (DU) inhalation, we examined the metabolic activity, phagocytosis, genotoxicity and inflammation on DU-exposed rat alveolar macrophages (12.5–200 ?M). Stability and dissolution of DU could differ depending on the dissolvent and in turn alter its biological action. We dissolved DU in sodium bicarbonate (NaHCO{sub 3} 100 mM) and in what we consider a more physiological vehicle resembling human internal media: sodium chloride (NaCl 0.9%). We demonstrate that uranyl nitrate in NaCl solubilizes, enters the cell, and elicits its cytotoxic effect similarly to when it is diluted in NaHCO{sub 3}. We show that irrespective of the dissolvent employed, uranyl nitrate impairs cell metabolism, and at low doses induces both phagocytosis and generation of superoxide anion (O{sub 2}{sup ?}). At high doses it provokes the secretion of TNF? and through all the range of doses tested, apoptosis. We herein suggest that at DU low doses O{sub 2}{sup ?} may act as the principal mediator of DNA damage while at higher doses the signaling pathway mediated by O{sub 2}{sup ?} may be blocked, prevailing damage to DNA by the TNF? route. The study of macrophage functions after uranyl nitrate treatment could provide insights into the pathophysiology of uranium?related diseases. -- Highlights: ? Uranyl nitrate effect on cultured macrophages is linked to the doses and independent of its solubility. ? At low doses uranyl nitrate induces generation of superoxide anion. ? At high doses uranyl nitrate provokes secretion of TNF?. ? Uranyl nitrate induces apoptosis through all the range of doses tested.

Orona, N.S. [School of Science and Technology, National University of General Martín, Avda Gral Paz 5445 (1650) San Martín, Buenos Aires (Argentina)] [School of Science and Technology, National University of General Martín, Avda Gral Paz 5445 (1650) San Martín, Buenos Aires (Argentina); Tasat, D.R., E-mail: deborah.tasat@unsam.edu.ar [School of Science and Technology, National University of General Martín, Avda Gral Paz 5445 (1650) San Martín, Buenos Aires (Argentina); School of Dentistry, University of Buenos Aires, M. T. de Alvear 2142 (1122), Buenos Aires (Argentina)

2012-06-15T23:59:59.000Z

180

The Marketing Concentration  

E-Print Network (OSTI)

The Marketing Concentration The Manning School of Business www.uml.edu/management Who We Are, management, management information systems, marketing and supply chain and operations management we provide education possible." -- Andy Hwang Marketing Major "I chose UMass Lowell because of its high level

Massachusetts at Lowell, University of

Note: This page contains sample records for the topic "location concentration nitrate" 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

Field descriptions for a developing laminar tube flow with and without a concentrically located spherical obstacle  

E-Print Network (OSTI)

By Br" r Br" By (6) B'w 1 Bw Bgw Bn . Bw . Bw += ?. += ? . = Re (u ?. + w=) BrB r" Br By2 By r Br By (7) The nonlinear equations (6) and (7) are second order in the nondimensional radial and axial velocity, respectively, and require eight boundary... Approved as to style and content by: (C airman f Commit tee) (Co-Chairman of Committee) A Q' (Head of Dep rtment) P -, qg/, . 7 (Member) (M er) /7 Z~t j&dgc- December 1972 ABSTRACT Field Descriptions for a Developing Laminar Tube Flow...

Mikkelsen, Clark Douglas

2012-06-07T23:59:59.000Z

182

Crystal chemistry of new thorium nitrates and chromates  

SciTech Connect

The structures and infrared spectra of six novel thorium compounds are reported. Th(NO{sub 3}){sub 2}(OH){sub 2}(H{sub 2}O){sub 2} (1) crystallizes in space group C2/c, a=14.050(1), b=8.992(7), c=5.954(5) Å, ?=101.014(2)°. K{sub 2}Th(NO{sub 3}){sub 6} (2), P-3, a=13.606(1), c=6.641(6) Å. (C{sub 12}H{sub 28}N){sub 2}Th(NO{sub 3}){sub 6} (3), P21/c, a=14.643(4), b=15.772(5), c=22.316(5) Å, ?=131.01(1)°. KTh(NO{sub 3}){sub 5}(H{sub 2}O){sub 2} (4), P21/c, a=10.070(8), b=12.731(9), c=13.231(8) Å, ?=128.647(4)°. Th(CrO{sub 4}){sub 2}(H{sub 2}O){sub 2} (5), P21/n, a=12.731(1), b=9.469(8), c=12.972(1) Å, ?=91.793(2)°. K{sub 2}Th{sub 3}(CrO{sub 4}){sub 7}(H{sub 2}O){sub 10} (6), Ama2, a=19.302(8), b=15.580(6), c=11.318(6) Å. The coordination polyhedra about Th in these structures are diverse. Th is coordinated by 9 O atoms in 5 and 6, seven of which are from monodentate (CrO{sub 4}) tetrahedra and two are (H{sub 2}O). The Th in compound 1 is coordinated by ten O atoms, four of which are O atoms of two bidentate (NO{sub 3}) triangles and six of which are (OH) and (H{sub 2}O). In compounds 2, 3 and 4 the Th is coordinate by 12 O atoms. In 2 and 3 there are six bidentate (NO{sub 3}) triangles, and in 4 ten of the O atoms are part of five bidentate (NO{sub 3}) triangles and the others are (H{sub 2}O) groups. The structural units of these compounds consist of a chain of thorium and nitrate polyhedra (1), isolated thorium hexanitrate clusters (2, 3), an isolated thorium pentanitrate dihydrate cluster (4), and a sheet (6) and framework (5) of thorium and chromate polyhedra. These structures illustrate the complexity inherent in the crystal chemistry of Th.

Sigmon, Ginger E.; Burns, Peter C

2010-01-01T23:59:59.000Z

183

Factors affecting the discharge lifetime of lithium-molten nitrate thermal battery cells using soluble cathode materials  

Science Journals Connector (OSTI)

The use of soluble cathode materials in molten nitrate electrolyte thermal battery cells presents several problems related to cathode...? rich separator layer.

G. E. McManis; A. N. Fletcher; M. H. Miles

1986-09-01T23:59:59.000Z

184

Standard test method for determination of bromine and chlorine in UF6 and uranyl nitrate by X-Ray fluorescence (XRF) spectroscopy  

E-Print Network (OSTI)

1.1 This method covers the determination of bromine (Br) and chlorine (Cl) in uranium hexafluoride (UF6) and uranyl nitrate solution. The method as written covers the determination of bromine in UF6 over the concentration range of 0.2 to 8 ?g/g, uranium basis. The chlorine in UF6 can be determined over the range of 4 to 160 ?g/g, uranium basis. Higher concentrations may be covered by appropriate dilutions. The detection limit for Br is 0.2 ?g/g uranium basis and for Cl is 4 ?g/g uranium basis. 1.2 This standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

American Society for Testing and Materials. Philadelphia

2001-01-01T23:59:59.000Z

185

Nordhaus–Gaddum bounds for locating domination  

Science Journals Connector (OSTI)

Abstract A dominating set S of graph G is called metric-locating–dominating if it is also locating, that is, if every vertex v is uniquely determined by its vector of distances to the vertices in S . If moreover, every vertex v not in S is also uniquely determined by the set of neighbors of v belonging to S , then it is said to be locating–dominating. Locating, metric-locating–dominating and locating–dominating sets of minimum cardinality are called ? -codes, ? -codes and ? -codes, respectively. A Nordhaus–Gaddum bound is a tight lower or upper bound on the sum or product of a parameter of a graph G and its complement G ¯ . In this paper, we present some Nordhaus–Gaddum bounds for the location number ? , the metric-location–domination number ? and the location–domination number ? . Moreover, in each case, the graph family attaining the corresponding bound is fully characterized.

C. Hernando; M. Mora; I.M. Pelayo

2014-01-01T23:59:59.000Z

186

Derived Concentration Technical Standard  

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

196-2011 196-2011 April 2011 DOE STANDARD DERIVED CONCENTRATION TECHNICAL STANDARD U.S. Department of Energy AREA ENVR Washington, D.C. 20585 Not Measurement Sensitive This document is available on the Department of Energy Technical Standards Program Web Site at http://www.hss.doe.gov/nuclearsafety/ns/techstds/standard/standard.html DOE-STD-1196-2011 ACKNOWLEDGEMENTS This Derived Concentration Technical Standard was a collaborative effort sponsored by the DOE Office of Environmental Policy and Assistance, with support from Department subject matter experts (SMEs) in the field of radiation protection. This standard, which complements DOE Order (O) 458.1, Radiation Protection of the Public and the Environment, was developed taking

187

Concentrating Energy by Measurement  

E-Print Network (OSTI)

In a recent article [A. Kurcz et al., Phys. Rev. A 81, 063821 (2010)] we predicted an energy concentrating mechanism in composite quantum systems. Its result is a non-zero stationary state photon emission rate even in the absence of external driving. Here we discuss the possible origin of the predicted effect. We attribute it to the presence of a non-trivial interaction between different system components and to repeated environment-induced photon measurements.

Almut Beige; Antonio Capolupo; Andreas Kurcz; Emilio Del Giudice; Giuseppe Vitiello

2010-12-29T23:59:59.000Z

188

Low time resolution analysis of polar ice cores cannot detect impulsive nitrate events  

E-Print Network (OSTI)

Ice cores are archives of climate change and possibly large solar proton events (SPEs). Wolff et al. (2012) used a single event, a nitrate peak in the GISP2-H core, which McCracken et al. (2001a) time associated with the poorly quantified 1859 Carrington event, to discredit SPE-produced, impulsive nitrate deposition in polar ice. This is not the ideal test case. We critique the Wolff et al. analysis and demonstrate that the data they used cannot detect impulsive nitrate events because of resolution limitations. We suggest re-examination of the top of the Greenland ice sheet at key intervals over the last two millennia with attention to fine resolution and replicate sampling of multiple species. This will allow further insight into polar depositional processes on a sub-seasonal scale, including atmospheric sources, transport mechanisms to the ice sheet, post-depositional interactions, and a potential SPE association.

Smart, D F; Melott, A L; Laird, C M

2015-01-01T23:59:59.000Z

189

An agent-based retail location model on a supply chain Arthur Huangand David Levinson  

E-Print Network (OSTI)

An agent-based retail location model on a supply chain network Arthur Huangand David Levinson of suppliers, retailers, and, consumers. Krugman (1996) argued that urban concentration involved a tension an agent-based model of retailers' location choice in a market of homogeneous products. In this game

Levinson, David M.

190

LOCATION OF THUNDERSTORMS BY RADIO METHODS  

Science Journals Connector (OSTI)

... systems are well known, and the exact location can be determined when the line or substation is afterwards inspected. Thus power supply system statistics provide reliable evidence of the location ...

1943-03-06T23:59:59.000Z

191

The reactivity of cesium nickel ferrocyanide towards nitrate and nitrite salts  

SciTech Connect

Beginning in late 1988, the Pacific Northwest Laboratory (PNL) began an experimental program at the request of Westinghouse Hanford Company (WHC) to investigate the effects of temperature on the oxidation reaction between synthetic nickel cesium ferrocyanide (FeCN) and nitrates and nitrites representative of materials present in some of the Hanford single-shell tanks (SSTs). After completing a preliminary series of experiments in 1988, the program was expanded to include five tasks to evaluate the effect of selected compositional and operational parameters on the reaction and explosion temperatures of FeCN and nitrate and/or nitrite mixtures. 10 refs., 4 figs., 6 tabs.

Burger, L.L.; Scheele, R.D.

1991-09-01T23:59:59.000Z

192

Concentrating Solar Power Tower System Basics | Department of Energy  

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

Concentrating Solar Power Tower System Basics Concentrating Solar Power Tower System Basics Concentrating Solar Power Tower System Basics August 20, 2013 - 5:06pm Addthis In power tower concentrating solar power systems, numerous large, flat, sun-tracking mirrors, known as heliostats, focus sunlight onto a receiver at the top of a tall tower. A heat-transfer fluid heated in the receiver is used to generate steam, which, in turn, is used in a conventional turbine generator to produce electricity. Some power towers use water/steam as the heat-transfer fluid. Other advanced designs are experimenting with molten nitrate salt because of its superior heat-transfer and energy-storage capabilities. Individual commercial plants can be sized to produce up to 200 megawatts of electricity. Illustration of a power tower power plant. Sunlight is shown reflecting off a series of heliostats surrounding the tower and onto the receiver at the top of the tower. The hot heat-transfer fluid exiting from the receiver flows down the tower, into a feedwater reheater, and then into a turbine, which generates electricity that is fed into the power grid. The cool heat-transfer fluid exiting the turbine flows into a steam condenser to be cooled and sent back up the tower to the receiver.

193

Analysis of the AirTouch automatic vehicle location system's ability to locate moving vehicles  

E-Print Network (OSTI)

Automatic vehicle location systems are becoming more prevalent in diverse transportation applications. Their ability to locate vehicles can assist in locating emergency and public transit vehicles for better real-time dispatching as well...

Henry, Tracy Lynn

2012-06-07T23:59:59.000Z

194

Alkyl nitrate (C1-C3) depth profiles in the tropical Pacific Ocean E. E. Dahl,1,2  

E-Print Network (OSTI)

and distribution of tropo- spheric ozone. Atmospheric alkyl nitrates are normally associated with polluted air free radical processes initiated by radioactive decay or cosmic rays, enzymatically mediated reactions expedition in the equatorial Pacific, an equatorial maximum in atmospheric ethyl and isopropyl nitrate

Saltzman, Eric

195

NITRATE UTILIZATION BY PHYTOPLANKTON IN LAKE SUPERIOR IS IMPAIRED BY LOW NUTRIENT (P, Fe) AVAILABILITY AND SEASONAL LIGHT LIMITATION--  

E-Print Network (OSTI)

NITRATE UTILIZATION BY PHYTOPLANKTON IN LAKE SUPERIOR IS IMPAIRED BY LOW NUTRIENT (P, Fe utilization in this oligotrophic system. Clean sampling methods were used to collect water from Lake Superior during spring and summer 2004, and nitrate utilization was measured by monitoring bioreporter

Sterner, Robert W.

196

Change in Bacterial Community Structure during In Situ Biostimulation of Subsurface Sediment Cocontaminated with Uranium and Nitrate  

Science Journals Connector (OSTI)

...403-410. 2 American Public Health Association. 1969...604-609. American Public Health Association, Washington...Geobacter species to remove uranium from the groundwater...nitrate, Fe(III), and uranium were extensively reduced...while nitrate was largely depleted. A large diversity of...

Nadia N. North; Sherry L. Dollhopf; Lainie Petrie; Jonathan D. Istok; David L. Balkwill; Joel E. Kostka

2004-08-01T23:59:59.000Z

197

Structural Changes of Bimetallic PdX/Cu (1-X) Nanocatalysts Developed for Nitrate Reduction of Drinking Water  

E-Print Network (OSTI)

of Drinking Water Huiping Xu1,2 , Ray Twesten3 , Kathryn Guy4 , John Shapley4 , Charles Werth5 , Anatoly alternative for nitrate removal in drinking water [1]. Fundamental understanding how the atomic arrangement for the purification of drinking water. INTRODUCTION Presently nitrate in drinking water is either not removed

Frenkel, Anatoly

198

EFFECT OF CHLORIDE AND SULFATE CONCENTRATION ON PROBABLITY BASED CORROSION CONTROL FOR LIQUID WASTE TANKS- PART IV  

SciTech Connect

A series of cyclic potentiodynamic polarization tests was performed on samples of A537 carbon steel in support of a probability-based approach to evaluate the effect of chloride and sulfate on corrosion susceptibility. Testing solutions were chosen to build off previous experimental results from FY07, FY08, FY09 and FY10 to systemically evaluate the influence of the secondary aggressive species, chloride, and sulfate. The FY11 results suggest that evaluating the combined effect of all aggressive species, nitrate, chloride, and sulfate, provides a consistent response for determining corrosion susceptibility. The results of this work emphasize the importance for not only nitrate concentration limits, but also chloride and sulfate concentration limits as well.

Hoffman, E.

2012-08-23T23:59:59.000Z

199

Optical oxygen concentration monitor  

DOE Patents (OSTI)

A system for measuring and monitoring the concentration of oxygen uses as a light source an argon discharge lamp, which inherently emits light with a spectral line that is close to one of oxygen`s A-band absorption lines. In a preferred embodiment, the argon line is split into sets of components of shorter and longer wavelengths by a magnetic field of approximately 2,000 Gauss that is parallel to the light propagation from the lamp. The longer wavelength components are centered on an absorption line of oxygen and thus readily absorbed, and the shorter wavelength components are moved away from that line and minimally absorbed. A polarization modulator alternately selects the set of the longer wavelength, or upshifted, components or the set of the shorter wavelength, or downshifted, components and passes the selected set to an environment of interest. After transmission over a path through that environment, the transmitted optical flux of the argon line varies as a result of the differential absorption. The system then determines the concentration of oxygen in the environment based on the changes in the transmitted optical flux between the two sets of components. In alternative embodiments modulation is achieved by selectively reversing the polarity of the magnetic field or by selectively supplying the magnetic field to either the emitting plasma of the lamp or the environment of interest. 4 figs.

Kebabian, P.

1997-07-22T23:59:59.000Z

200

Optical oxygen concentration monitor  

DOE Patents (OSTI)

A system for measuring and monitoring the concentration of oxygen uses as a light source an argon discharge lamp, which inherently emits light with a spectral line that is close to one of oxygen's A-band absorption lines. In a preferred embodiment, the argon line is split into sets of components of shorter and longer wavelengths by a magnetic field of approximately 2000 Gauss that is parallel to the light propagation from the lamp. The longer wavelength components are centered on an absorption line of oxygen and thus readily absorbed, and the shorter wavelength components are moved away from that line and minimally absorbed. A polarization modulator alternately selects the set of the longer wavelength, or upshifted, components or the set of the shorter wavelength, or downshifted, components and passes the selected set to an environment of interest. After transmission over a path through that environment, the transmitted optical flux of the argon line varies as a result of the differential absorption. The system then determines the concentration of oxygen in the environment based on the changes in the transmitted optical flux between the two sets of components. In alternative embodiments modulation is achieved by selectively reversing the polarity of the magnetic field or by selectively supplying the magnetic field to either the emitting plasma of the lamp or the environment of interest.

Kebabian, Paul (Acton, MA)

1997-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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
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201

Alternative Fueling Station Locator | Open Energy Information  

Open Energy Info (EERE)

Alternative Fueling Station Locator Alternative Fueling Station Locator Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Alternative Fueling Station Locator Agency/Company /Organization: United States Department of Energy Partner: National Renewable Energy Laboratory Sector: Energy Focus Area: Fuels & Efficiency, Transportation Phase: Evaluate Options, Prepare a Plan Topics: Datasets Resource Type: Online calculator User Interface: Website Website: www.afdc.energy.gov/afdc/locator/stations/ Web Application Link: www.afdc.energy.gov/afdc/locator/stations/ Cost: Free OpenEI Keyword(s): Featured References: National Renewable Energy Laboratory Advanced Vehicles and Fuels Research: Data and Resources[1] Logo: Alternative Fueling Station Locator The alternative fuel station locator uses an address based search to find

202

Concentrating Solar Power Services CSP Services | Open Energy Information  

Open Energy Info (EERE)

Concentrating Solar Power Services CSP Services Concentrating Solar Power Services CSP Services Jump to: navigation, search Name Concentrating Solar Power Services (CSP Services) Place Cologne, Germany Zip D-51143 Sector Solar Product A spin-out of the DLR Institute of Technical Thermodynamics, providing consulting, due diligence and component testing for Solar Thermal Electricity Generation (STEG). References Concentrating Solar Power Services (CSP Services)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Concentrating Solar Power Services (CSP Services) is a company located in Cologne, Germany . References ↑ "Concentrating Solar Power Services (CSP Services)" Retrieved from "http://en.openei.org/w/index.php?title=Concentrating_Solar_Power_Services_CSP_Services&oldid=343830

203

Comparison of Fresnel concentrators for building integrated photovoltaics  

Science Journals Connector (OSTI)

To develop concentrating photovoltaic systems for building integration applications, two optical devices are proposed. The concentrators are based in stationary linear Fresnel lenses and secondary CPC. The moving focal area is ten times smaller than the Fresnel lens aperture. Concentrator characteristics are studied in detail: shadowing effect, placement of the focal area and optical concentration efficiency. The main contribution of this paper is the three-dimensional optical analysis of the non-imaging concentrating systems. In terms of solar radiation, photovoltaic moving modules placed in the focal area of stationary concentrators are compared with simply fixed photovoltaic modules. In favourable weather locations, the beam radiation incident on the concentrating modules would be a large percentage, more than 50%, of the global radiation received by the fixed photovoltaic devices.

Daniel Chemisana; Manuel Ibáñez; Jerome Barrau

2009-01-01T23:59:59.000Z

204

Application of a modified denitrifying bacteria method for analyzing groundwater and vadose zone pore water nitrate at the Hanford Site, WA, USA.  

E-Print Network (OSTI)

zone pore water nitrate at the Hanford Site, WA, USA. Woods,and Conrad, Mark The Hanford Site in southern WashingtonL have been reported for Hanford groundwaters, where nitrate

Woods, Katharine N.; Singleton, Michael J.; Conrad, Mark

2003-01-01T23:59:59.000Z

205

Major DOE Biofuels Project Locations | Department of Energy  

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

Major DOE Biofuels Project Locations Major DOE Biofuels Project Locations Major DOE Biofuels Project Locations More Documents & Publications Major DOE Biofuels Project Locations...

206

Inhibition of Protein Tyrosine Phosphatase by the Antitumor Agent Gallium Nitrate  

Science Journals Connector (OSTI)

...Gallium is known to bind to the iron transport protein transferrin...NSC 166828. gallium, tris(acetylacetonate). The gallium nitrate:transferrin...the binding of gallium to the iron transport protein transferrin...and incorporation into the iron storage protein ferritin...

Margareta M. Berggren; Leigh Ann Burns; Robert T. Abraham; and Garth Powis

1993-04-15T23:59:59.000Z

207

Nitrate and colloid transport through coarse Hanford sediments under steady state, variably saturated flow  

E-Print Network (OSTI)

Nitrate and colloid transport through coarse Hanford sediments under steady state, variably] At the U.S. Department of Energy's Hanford Reservation, colloid-facilitated transport is a potential of colloids through Hanford sediments under steady state, unsaturated flow conditions. We isolated colloids

Flury, Markus

208

Applicability of Anaerobic Nitrate-Dependent Fe(II) Oxidation to Microbial Enhanced Oil Recovery (MEOR)  

Science Journals Connector (OSTI)

Furthermore, both of the substrates of the NDFO organisms [Fe(II) and nitrate] and the various end products of the metabolism [Fe(III), nitrite, nitric oxide, and nitrous oxide] all have known anti-souring and sulfide-scouring activities. ... A glass wool pad was placed on the bottom of the bead beds to prevent beads from falling into the inlet tubing. ...

Hongbo Zhu; Han K. Carlson; John D. Coates

2013-06-25T23:59:59.000Z

209

Bacterially mediated removal of phosphorus and cycling of nitrate and sulfate in the waste stream  

E-Print Network (OSTI)

with an increase in ammonia showing there had to be an additional P removal process at the same timeBacterially mediated removal of phosphorus and cycling of nitrate and sulfate in the waste stream sludge Phosphorus removal Denitrification Apatite formation Sulfur cycling a b s t r a c t Simultaneous

Benning, Liane G.

210

Gas/particle partitioning of total alkyl nitrates observed with TD-LIF in Bakersfield  

E-Print Network (OSTI)

total AN (gas + aerosol) and ANaer show that on average 21% of ANs are in the condensed phaseGas/particle partitioning of total alkyl nitrates observed with TD-LIF in Bakersfield A. W. Rollins samples. These measurements show that ANs are a ubiquitous component of the OA with the ­ONO2 subunit

Cohen, Ronald C.

211

Carbon 14 Production From Ammonium Nitrate Solution in the Chain-reacting Pile  

Science Journals Connector (OSTI)

...expected, there is also dissolved in the solution a small residual amount of C1402 which can be recovered easily by 0M14 AC PILC FIG. 1. C14 factory using circulating solution of ammonium nitrate. that most of the C14 would be evolved from such a solution...

L. D. NORRIS; ARTHUR H. SNELL

1947-03-07T23:59:59.000Z

212

High-Resolution In Situ Analysis of Nitrate and Phosphate in the Oligotrophic Ocean  

Science Journals Connector (OSTI)

High-Resolution In Situ Analysis of Nitrate and Phosphate in the Oligotrophic Ocean ... Upon power up, the instrument will sequentially execute all commands in the current method until termination by lack of further commands or power interruption. ... The SEAS instrument was connected to a CTD and a PAR sensor, powered on deck, and lowered to 30 m depth. ...

Lori R. Adornato; Eric A. Kaltenbacher; Danielle R. Greenhow; Robert H. Byrne

2007-05-04T23:59:59.000Z

213

Acetate Production from Oil under Sulfate-Reducing Conditions in Bioreactors Injected with Sulfate and Nitrate  

Science Journals Connector (OSTI)

...sulfate- and nitrate- reducing bacteria from an oil field in Argentina. Appl. Environ. Microbiol. 74 :4324-4335. 34. Callbeck...6908-6917. 41. Gieg, LM , KE Duncan and JM Suflita. 2008. Bioenergy production via microbial conversion of residual oil to natural...

Cameron M. Callbeck; Akhil Agrawal; Gerrit Voordouw

2013-06-14T23:59:59.000Z

214

The structure of the complex formed by tetrahethylamalondiamide and lanthanum(III) nitrate  

Science Journals Connector (OSTI)

The structure of the complex LaL2(NO3)3 [L = (C2H5)2NCOCH2CON(C2H5)2] has been investigated. It has been shown that the lanthanum is 10 coordinate with two bidentate L ligands and three bidentate nitrate groups.

Paul Byers; Michael G.B. Drew; Michael J. Hudson; Neil S. Isaacs; Charles Madic

1994-01-01T23:59:59.000Z

215

Linear concentrating solar collector  

SciTech Connect

The present invention relates to a segment of a linear concentrating solar collector which includes two plates distanced from each other and extending parallel to each other; a member connects the plates to each other and holes are bored in each of the plates in a parallel manner along a parabolic curve. A member passes through the holes each holding a small strip made of a reflecting material all strips together forming a parabolic surface. The invention relates also to a collector comprising at least two of each segments and an absorber extending along the focus line of the entire collector. The collector is advantageously provided with horizontal and/or vertical members which ascertains that the collector can follow the position of the sun.

Aharon, N. B.

1985-08-06T23:59:59.000Z

216

Concentrating Solar Power  

Science Journals Connector (OSTI)

Concentrating Solar Power (CSP) has the potential to contribute significantly to the generation of electricity by renewable energy resources in the U.S.. Thermal storage can extend the duty cycle of CSP beyond daytime hours to early evening where the value of electricity is often the highest. The potential solar resource for the southwest U.S. is identified along with the need to add power lines to bring the power to consumers. CSP plants in the U.S. and abroad are described. The CSP cost of electricity at the busbar is discussed. With current incentives CSP is approaching competiveness with conventional gas?fired systems during peak?demand hours when the price of electricity is the highest. It is projected that a mature CSP industry of over 4 GWe will be able to reduce the energy cost by about 50% and that U.S. capacity could be 120 GW by 2050.

Mark Mehos

2008-01-01T23:59:59.000Z

217

Our Locations | National Nuclear Security Administration  

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

Locations | National Nuclear Security Administration Locations | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Our Locations Home > About Us > Our Locations Our Locations The NNSA's nuclear security enterprise spans eight sites, including three national laboratories, with more than six decades of cutting-edge nuclear security experience. That history and technical expertise enables NNSA to

218

Our Locations | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Locations | National Nuclear Security Administration Locations | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Our Locations Home > About Us > Our Locations Our Locations The NNSA's nuclear security enterprise spans eight sites, including three national laboratories, with more than six decades of cutting-edge nuclear security experience. That history and technical expertise enables NNSA to

219

Locating-total domination in graphs  

Science Journals Connector (OSTI)

In this paper, we continue the study of locating-total domination in graphs. A set S of vertices in a graph G is a total dominating set in G if every vertex of G is adjacent to a vertex in S . We consider total dominating sets S which have the additional property that distinct vertices in V ( G ) ? S are totally dominated by distinct subsets of the total dominating set. Such a set S is called a locating-total dominating set in G , and the locating-total domination number of G is the minimum cardinality of a locating-total dominating set in G . We obtain new lower and upper bounds on the locating-total domination number of a graph. Interpolation results are established, and the locating-total domination number in special families of graphs, including cubic graphs and grid graphs, is investigated.

Michael A. Henning; Nader Jafari Rad

2012-01-01T23:59:59.000Z

220

Community Detection from Location-Tagged Networks  

E-Print Network (OSTI)

Many real world systems or web services can be represented as a network such as social networks and transportation networks. In the past decade, many algorithms have been developed to detect the communities in a network using connections between nodes. However in many real world networks, the locations of nodes have great influence on the community structure. For example, in a social network, more connections are established between geographically proximate users. The impact of locations on community has not been fully investigated by the research literature. In this paper, we propose a community detection method which takes locations of nodes into consideration. The goal is to detect communities with both geographic proximity and network closeness. We analyze the distribution of the distances between connected and unconnected nodes to measure the influence of location on the network structure on two real location-tagged social networks. We propose a method to determine if a location-based community detection...

Liu, Zhi

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Helicopter magnetic survey conducted to locate wells  

SciTech Connect

A helicopter magnetic survey was conducted in August 2007 over 15.6 sq mi at the Naval Petroleum Reserve No. 3’s (NPR-3) Teapot Dome Field near Casper, Wyoming. The survey’s purpose was to accurately locate wells drilled there during more than 90 years of continuous oilfield operation. The survey was conducted at low altitude and with closely spaced flight lines to improve the detection of wells with weak magnetic response and to increase the resolution of closely spaced wells. The survey was in preparation for a planned CO2 flood for EOR, which requires a complete well inventory with accurate locations for all existing wells. The magnetic survey was intended to locate wells missing from the well database and to provide accurate locations for all wells. The ability of the helicopter magnetic survey to accurately locate wells was accomplished by comparing airborne well picks with well locations from an intense ground search of a small test area.

Veloski, G.A.; Hammack, R.W.; Stamp, V. (Rocky Mountain Oilfield Testing Center); Hall, R. (Rocky Mountain Oilfield Testing Center); Colina, K. (Rocky Mountain Oilfield Testing Center)

2008-07-01T23:59:59.000Z

222

Desalination using electrodialysis as a function of voltage and salt concentration  

Science Journals Connector (OSTI)

Electrodialysis is a process that competes with reverse osmosis for desalination and the removal of specific inorganic contaminants. Desalination experiments were carried out on aqueous solutions containing 5 and 10 g/L NaCl to determine the optimum operating conditions of an electrodialysis (ED) system. Further desalination of aqueous solutions containing 1, 5, 10, 20, 25 and 35 g/L NaCl at an optimum applied voltage of 12 V was conducted to determine the influence of initial salt concentration on the desalination process. The possibility of removing fluoride and nitrate from a groundwater containing about 4.3 g/L NaCl, as well as 2.8 and 31.3 mg/L of fluoride and nitrate respectively, as a function of applied voltage was also investigated. A laboratory electrodialysis stack containing seven cation-exchange membranes and six anion-exchange membranes of 56 cm2 effective area was used. From these studies it is demonstrated that electrodialysis is an effective method for the removal of fluoride and nitrate from brackish groundwater and that real groundwater showed a slower desalination behaviour. Fouling of the membranes was observed.

Laura J. Banasiak; Thomas W. Kruttschnitt; Andrea I. Schäfer

2007-01-01T23:59:59.000Z

223

Optical measurement of drug concentrations in tissue  

SciTech Connect

This is the final report of a one-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The aim of this project was to develop noninvasive fiber-optic methods for measuring drug concentrations in tissue. Such a system would make possible the study of chemotherapy drug kinetics at specific, targeted locations in the body after the drug is administered. The major result of this project is the development of techniques for measuring changes in absorption of a medium with unknown scattering properties. The developed method was verified by testing on several media with scattering properties in the range typically found for tissue.

Mourant, J.R.; Bigio, I.J.; Jack, D.A.; Johnson, T.M.; Miller, H.D. [Los Alamos National Lab., NM (United States). Chemical Sciences and Technology Div.

1997-10-01T23:59:59.000Z

224

Acoustic concentration of particles in fluid flow  

SciTech Connect

An apparatus for acoustic concentration of particles in a fluid flow includes a substantially acoustically transparent membrane and a vibration generator that define a fluid flow path therebetween. The fluid flow path is in fluid communication with a fluid source and a fluid outlet and the vibration generator is disposed adjacent the fluid flow path and is capable of producing an acoustic field in the fluid flow path. The acoustic field produces at least one pressure minima in the fluid flow path at a predetermined location within the fluid flow path and forces predetermined particles in the fluid flow path to the at least one pressure minima.

Ward, Michael D. (Los Alamos, NM); Kaduchak, Gregory (Los Alamos, NM)

2010-11-23T23:59:59.000Z

225

Location-dependent communications using quantum entanglement  

SciTech Connect

The ability to unconditionally verify the location of a communication receiver would lead to a wide range of new security paradigms. However, it is known that unconditional location verification in classical communication systems is impossible. In this work we show how unconditional location verification can be achieved with the use of quantum communication channels. Our verification remains unconditional irrespective of the number of receivers, computational capacity, or any other physical resource held by an adversary. Quantum location verification represents an application of quantum entanglement that delivers a feat not possible in the classical-only channel. It gives us the ability to deliver real-time communications viable only at specified geographical coordinates.

Malaney, Robert A. [School of Electrical Engineering and Telecommunications, University of New South Wales, New South Wales 2052 (Australia)

2010-04-15T23:59:59.000Z

226

Implementing Rational Surface Locations Measured From Thomson...  

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

Rational Surface Locations Measured From Thomson Scattering Into MSTfit by Curtis A. Johnson Senior Thesis (Physics) at the University of Wisconsin-Madison 2014 i Abstract...

227

Stochastic p-Robust Location Problems  

E-Print Network (OSTI)

We present p-robust models based on two classical facility location problems, ... University, Department of Industrial Engineering and Management Sciences, ...

2004-08-03T23:59:59.000Z

228

Regenerator Location Problem in Flexible Optical Networks  

E-Print Network (OSTI)

Nov 22, 2014 ... Abstract: In this study we introduce the regenerator location problem in flexible optical networks (RLP-FON). With a given traffic demand, ...

BARIS YILDIZ

2014-11-22T23:59:59.000Z

229

Procurement Information by Location | Department of Energy  

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

Procurement Information by Location Procurement Information by Location Procurement Information by Location As part of our Small Business Opportunity Tool, we are offering information about historical procurement by location. Find historical procurement data by state - check out the list of states below, and click on the state's name to learn more about their current programs and past procurement needs. Click on the state to learn more about our current procurement activity: California Colorado District of Columbia Georgia Idaho Illinois Iowa Louisana Maryland Missouri Nevada New Jersey New Mexico New York Ohio Oklahoma Oregon Pennsylvania South Carolina Tennessee Texas Virginia West Virginia Washington Wyoming

230

Optimization Online - Public Facility Location Using Dispersion ...  

E-Print Network (OSTI)

Jan 27, 2013 ... Our results show close collaboration with the p-median solution when decision makers restrict location to demand points, and use parameter ...

Rajan Batta

2013-01-27T23:59:59.000Z

231

Photovoltaic solar concentrator module  

SciTech Connect

This invention consists of a planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation which includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor.

Chiang, C.J.

1991-05-16T23:59:59.000Z

232

Definition: Phasor Data Concentrator (PDC) | Open Energy Information  

Open Energy Info (EERE)

Phasor Data Concentrator (PDC) Phasor Data Concentrator (PDC) Jump to: navigation, search Dictionary.png Phasor Data Concentrator (PDC) Receives and time-synchronizes phasor data from multiple phasor measurement units (PMUs) to produce a real-time, time-aligned output data stream. A PDC can exchange phasor data with PDCs at other locations. Through use of multiple PDCs, multiple layers of concentration can be implemented within an individual synchrophasor data system.[1] Related Terms smart grid References ↑ https://www.smartgrid.gov/category/technology/phasor_data_concentrator_pdc [[C LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ategory: Smart Grid Definitions|Template:BASEPAGENAME]] Retrieved from "http://en.openei.org/w/index.php?title=Definition:Phasor_Data_Concentrator_(PDC)&oldid=493108"

233

Microfluidic ultrasonic particle separators with engineered node locations and geometries  

DOE Patents (OSTI)

An ultrasonic microfluidic system includes a separation channel for conveying a sample fluid containing small particles and large particles, flowing substantially parallel, adjacent to a recovery fluid, with which it is in contact. An acoustic transducer produces an ultrasound standing wave, that generates a pressure field having at least one node of minimum pressure amplitude. An acoustic extension structure is located proximate to said separation channel for positioning said acoustic node off center in said acoustic area and concentrating the large particles in said recovery fluid stream.

Rose, Klint A; Fisher, Karl A; Wajda, Douglas A; Mariella, Jr., Raymond P; Bailey, Christoppher; Dehlinger, Dietrich; Shusteff, Maxim; Jung, Byoungsok; Ness, Kevin D

2014-05-20T23:59:59.000Z

234

RECYCLING PROGRAM TYPE LOCATION ALLOWED NOT ALLOWED  

E-Print Network (OSTI)

RECYCLING PROGRAM TYPE LOCATION ALLOWED NOT ALLOWED Batteries, toner, ink cartridges & cell phones and recycling is an important part of that effort. Below is a guide to on-campus recycling at RSMAS: Visit http://www.rsmas.miami.edu/msgso/ for map of recycling bin locations. NOTE: This is not an exhaustive list. If unauthorized items are found

Miami, University of

235

ENGINEERING DEPARTMENTS, DEGREES AND CONCENTRATIONS  

E-Print Network (OSTI)

ENGINEERING, CHEMISTRY AND SCIENCE (TECS) Biological Engineering (BE) Biomedical Engineering (BME) ChemicalENGINEERING DEPARTMENTS, DEGREES AND CONCENTRATIONS DEPARTMENT DEGREE CONCENTRATION (optional) BIOLOGICAL AND AGRICULTURAL ENGINEERING (BAE) BIOMEDICAL ENGINEERING (BME) CHEMICAL AND BIOMOLECULAR

236

1,4818 pour le nitrate d'uranyle). Les diffrents m-langes prsentaient sensiblement la mme densit.  

E-Print Network (OSTI)

434 1,4818 pour le nitrate d'uranyle). Les différents mé- langes présentaient sensiblement la mème pour des solutions de nitrate d'uranyle dont la densité a été reliée au moyen de chlorure ferrique nitrate d'uranyle sans chlorure fer- rique. En résumé, la mesure précise de l'activité des so- lutions de

Paris-Sud XI, Université de

237

Property:UtilityLocation | Open Energy Information  

Open Energy Info (EERE)

UtilityLocation UtilityLocation Jump to: navigation, search Property Name UtilityLocation Property Type Boolean Description Indicates this is the "mailing" location of the Utility. Usually is Yes if the information from EIA Form 861 File1_a is on the page. Pages using the property "UtilityLocation" Showing 25 pages using this property. (previous 25) (next 25) 3 3 Phases Energy Services + true + 4 4-County Electric Power Assn + true + A A & N Electric Coop (Virginia) + true + AEP Generating Company + true + AEP Texas Central Company + true + AEP Texas North Company + true + AES Eastern Energy LP + true + AGC Division of APG Inc + true + AP Holdings LLC + true + APN Starfirst, L.P. + true + APNA Energy + true + Accent Energy Holdings, LLC + true +

238

Property:Event/Location | Open Energy Information  

Open Energy Info (EERE)

Location Location Jump to: navigation, search Property Name Event/Location Property Type String Description The location in which an event will occur. Examples: 'Golden, Colorado' or 'Prestigious Hotel: 11 Rue Leroy, Paris, France'. Pages using the property "Event/Location" Showing 25 pages using this property. (previous 25) (next 25) 1 11th Annual Workshop on Greenhouse Gas Emission Trading + Paris, France + 11th Annual Workshop on Greenhouse Gas Emission Trading Day 2 + Paris, France + 15th International Business Forum: Low Carbon High Growth - Business Models for a Changing Climate + Pretoria, South Africa + 18th Africa Partnership Forum + Paris, France + 2 2012 Bonn Climate Change Conference + Bonn, Germany + 7 7th Asia Clean Energy Forum + Manila, Philippines +

239

NREL: Concentrating Solar Power Research - Southwest Concentrating Solar  

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

Southwest Concentrating Solar Power 1000-MW Initiative Southwest Concentrating Solar Power 1000-MW Initiative Photos of various concentrating solar power systems. NREL, working through SunLab, supports the U.S. Department of Energy's goal to install 1,000 megawatts (MW) of new concentrating solar power systems in the southwestern United States by 2010. This level of deployment, combined with research and development to reduce technology component costs, could help reduce concentrating solar power electricity costs to $0.07/kilowatt-hour. At this cost, concentrating solar power can compete effectively in the Southwest's energy markets. To achieve the Initiative's goal, the U.S. Department of Energy is partnering with the Western Governors' Association to encourage concentrating solar power installations in Arizona, California, Colorado,

240

Linear Concentrator System Basics for Concentrating Solar Power |  

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

Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power Linear Concentrator System Basics for Concentrating Solar Power August 20, 2013 - 4:45pm Addthis Photo of numerous parallel rows of parabolic trough collectors tracking the sun. Cooling towers and other generator equipment are in the midst of the troughs, and two water tanks are in the background. The Solar Electric Generating Station IV power plant in California consists of many parallel rows of parabolic trough collectors that track the sun. The cooling towers can be seen with the water plume rising into the air, and white water tanks are in the background. Credit: Sandia National Laboratory / PIX 14955 Linear concentrating solar power (CSP) collectors capture the sun's energy with large mirrors that reflect and focus the sunlight onto a linear

Note: This page contains sample records for the topic "location concentration nitrate" 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

SEDIMENT CONCENTRATION BELOW FREE OVERFALL  

E-Print Network (OSTI)

SEDIMENT CONCENTRATION BELOW FREE OVERFALL By O. R. Stein,~Associate Member, ASCE, and P. Y. Julien and sediment concentration, which may affect downstream morphology and water quality as well as the structure is to determine relationships between time, scour depth, scour-hole volume, and sediment concentration generated

Julien, Pierre Y.

242

Potential of Concentrating Solar Power in Canada  

Science Journals Connector (OSTI)

Abstract In this paper, results of an analysis to assess the potential of concentrating solar thermal power applications in Canada are presented. First, a direct normal solar resource (DNI) resource map for Canada is introduced. This map indicates the locations where the DNI is the highest in Canada and is derived from the most recent Perez's SUNY satellite-based solar resource model Version number 3. Second, the methodology and results of a GIS analysis to identify the locations of the most suitable lands for concentrating solar thermal power (CSP) applications in Canada are discussed. The total areas of the CSP-suitable lands are presented in a tabulated and a map formats for each of the Canadian provinces where there is a maximum DNI solar resource. Third and finally, results of a technical economical analysis for two CSP system designs are discussed. The two CSP systems considered include parabolic trough with synthetic oil heat transfer fluid with and without storage, molten salt power tower with and without storage.

R. Djebbar; D. Belanger; D. Boutin; E. Weterings; M. Poirier

2014-01-01T23:59:59.000Z

243

Molten Salt-Carbon Nanotube Thermal Energy Storage for Concentrating Solar Power Systems  

Office of Scientific and Technical Information (OSTI)

Molten Salt-Carbon Nanotube Thermal Energy Storage for Concentrating Solar Power Systems Molten Salt-Carbon Nanotube Thermal Energy Storage for Concentrating Solar Power Systems Final Report March 31, 2012 Michael Schuller, Frank Little, Darren Malik, Matt Betts, Qian Shao, Jun Luo, Wan Zhong, Sandhya Shankar, Ashwin Padmanaban The Space Engineering Research Center Texas Engineering Experiment Station Texas A&M University Abstract We demonstrated that adding nanoparticles to a molten salt would increase its utility as a thermal energy storage medium for a concentrating solar power system. Specifically, we demonstrated that we could increase the specific heat of nitrate and carbonate salts containing 1% or less of alumina nanoparticles. We fabricated the composite materials using both evaporative and air drying methods. We tested several thermophysical properties of the composite materials,

244

Summary of aluminum nitrate tests at the F/H-ETF  

SciTech Connect

Biofouling of the Norton ceramic filters in the F/H Effluent Treatment Facility (ETF) has been minimized by bacterial control strategies on the influent streams. However, enough bacteria still exists in the routine influent to impact the filter performance. One method of remediating biofouling in routine influent, initially observed in laboratory tests on simulant solutions, involves addition of aluminum nitrate to the influent wastewater. Tests on actual feed at the ETF using aluminum nitrate showed significantly improved performance, with increases in filter permeability of up to four-fold compared to the baseline case. These improvements were only realized after modifications to the pH adjustment system were completed which minimized upsets in the pH of the feed solutions.

McCabe, D.J.; Wiggins, A.W.

1992-01-01T23:59:59.000Z

245

Summary of aluminum nitrate tests at the F/H-ETF  

SciTech Connect

Biofouling of the Norton ceramic filters in the F/H Effluent Treatment Facility (ETF) has been minimized by bacterial control strategies on the influent streams. However, enough bacteria still exists in the routine influent to impact the filter performance. One method of remediating biofouling in routine influent, initially observed in laboratory tests on simulant solutions, involves addition of aluminum nitrate to the influent wastewater. Tests on actual feed at the ETF using aluminum nitrate showed significantly improved performance, with increases in filter permeability of up to four-fold compared to the baseline case. These improvements were only realized after modifications to the pH adjustment system were completed which minimized upsets in the pH of the feed solutions.

McCabe, D.J.; Wiggins, A.W.

1992-05-01T23:59:59.000Z

246

SINGLE-SHELL TANKS LEAK INTEGRITY ELEMENTS/SX FARM LEAK CAUSES AND LOCATIONS - 12127  

SciTech Connect

Washington River Protection Solutions, LLC (WRPS) developed an enhanced single-shell tank (SST) integrity project in 2009. An expert panel on SST integrity was created to provide recommendations supporting the development of the project. One primary recommendation was to expand the leak assessment reports (substitute report or LD-1) to include leak causes and locations. The recommendation has been included in the M-045-9IF Hanford Federal Facility Agreement and Consent Order (Tri-Party Agreement) as one of four targets relating to SST leak integrity. The 241-SX Farm (SX Farm) tanks with leak losses were addressed on an individual tank basis as part of LD-1. Currently, 8 out of 23 SSTs that have been reported to having a liner leak are located in SX Farm. This percentage was the highest compared to other tank farms which is why SX Farm was analyzed first. The SX Farm is comprised of fifteen SSTs built 1953-1954. The tanks are arranged in rows of three tanks each, forming a cascade. Each of the SX Farm tanks has a nominal I-million-gal storage capacity. Of the fifteen tanks in SX Farm, an assessment reported leak losses for the following tanks: 241-SX-107, 241-SX-108, 241-SX-109, 241-SX-111, 241-SX-112, 241-SX-113, 241-SX-114 and 241-SX-115. The method used to identify leak location consisted of reviewing in-tank and ex-tank leak detection information. This provided the basic data identifying where and when the first leaks were detected. In-tank leak detection consisted of liquid level measurement that can be augmented with photographs which can provide an indication of the vertical leak location on the sidewall. Ex-tank leak detection for the leaking tanks consisted of soil radiation data from laterals and drywells near the tank. The in-tank and ex-tank leak detection can provide an indication of the possible leak location radially around and under the tank. Potential leak causes were determined using in-tank and ex-tank information that is not directly related to leak detection. In-tank parameters can include temperature of the supernatant and sludge, types of waste, and chemical determination by either transfer or sample analysis. Ex-tank information can be assembled from many sources including design media, construction conditions, technical specifications, and other sources. Five conditions may have contributed to SX Farm tank liner failure including: tank design, thermal shock, chemistry-corrosion, liner behavior (bulging), and construction temperature. Tank design did not apparently change from tank to tank for the SX Farm tanks; however, there could be many unknown variables present in the quality of materials and quality of construction. Several significant SX Farm tank design changes occurred from previous successful tank farm designs. Tank construction occurred in winter under cold conditions which could have affected the ductile to brittle transition temperature of the tanks. The SX Farm tanks received high temperature boiling waste from REDOX which challenged the tank design with rapid heat up and high temperatures. All eight of the leaking SX Farm tanks had relatively high rate of temperature rise. Supernatant removal with subsequent nitrate leaching was conducted in all but three of the eight leaking tanks prior to leaks being detected. It is possible that no one characteristic of the SX Farm tanks could in isolation from the others have resulted in failure. However, the application of so many stressors - heat up rate, high temperature, loss of corrosion protection, and tank design - working jointly or serially resulted in their failure. Thermal shock coupled with the tank design, construction conditions, and nitrate leaching seem to be the overriding factors that can lead to tank liner failure. The distinction between leaking and sound SX Farm tanks seems to center on the waste types, thermal conditions, and nitrate leaching.

VENETZ TJ; WASHENFELDER D; JOHNSON J; GIRARDOT C

2012-01-25T23:59:59.000Z

247

Capacity Value of Concentrating Solar Power Plants  

SciTech Connect

This study estimates the capacity value of a concentrating solar power (CSP) plant at a variety of locations within the western United States. This is done by optimizing the operation of the CSP plant and by using the effective load carrying capability (ELCC) metric, which is a standard reliability-based capacity value estimation technique. Although the ELCC metric is the most accurate estimation technique, we show that a simpler capacity-factor-based approximation method can closely estimate the ELCC value. Without storage, the capacity value of CSP plants varies widely depending on the year and solar multiple. The average capacity value of plants evaluated ranged from 45%?90% with a solar multiple range of 1.0-1.5. When introducing thermal energy storage (TES), the capacity value of the CSP plant is more difficult to estimate since one must account for energy in storage. We apply a capacity-factor-based technique under two different market settings: an energy-only market and an energy and capacity market. Our results show that adding TES to a CSP plant can increase its capacity value significantly at all of the locations. Adding a single hour of TES significantly increases the capacity value above the no-TES case, and with four hours of storage or more, the average capacity value at all locations exceeds 90%.

Madaeni, S. H.; Sioshansi, R.; Denholm, P.

2011-06-01T23:59:59.000Z

248

Separation, Concentration, and Immobilization of Technetium and Iodine from Alkaline Supernate Waste  

SciTech Connect

Development of remediation technologies for the characterization, retrieval, treatment, concentration, and final disposal of radioactive and chemical tank waste stored within the Department of Energy (DOE) complex represents an enormous scientific and technological challenge. A combined total of over 90 million gallons of high-level waste (HLW) and low-level waste (LLW) are stored in 335 underground storage tanks at four different DOE sites. Roughly 98% of this waste is highly alkaline in nature and contains high concentrations of nitrate and nitrite salts along with lesser concentrations of other salts. The primary waste forms are sludge, saltcake, and liquid supernatant with the bulk of the radioactivity contained in the sludge, making it the largest source of HLW. The saltcake (liquid waste with most of the water removed) and liquid supernatant consist mainly of sodium nitrate and sodium hydroxide salts. The main radioactive constituent in the alkaline supernatant is cesium-137, but strontium-90, technetium-99, and transuranic nuclides are also present in varying concentrations. Reduction of the radioactivity below Nuclear Regulatory Commission (NRC) limits would allow the bulk of the waste to be disposed of as LLW. Because of the long half-life of technetium-99 (2.1 x 10 5 y) and the mobility of the pertechnetate ion (TcO 4 - ) in the environment, it is expected that technetium will have to be removed from the Hanford wastes prior to disposal as LLW. Also, for some of the wastes, some level of technetium removal will be required to meet LLW criteria for radioactive content. Therefore, DOE has identified a need to develop technologies for the separation and concentration of technetium-99 from LLW streams. Eichrom has responded to this DOE-identified need by demonstrating a complete flowsheet for the separation, concentration, and immobilization of technetium (and iodine) from alkaline supernatant waste.

James Harvey; Michael Gula

1998-12-07T23:59:59.000Z

249

Using Multiple Chemical Indicators to Assess Sources of Nitrate and Age of Groundwater in a Karstic Spring Basin  

Science Journals Connector (OSTI)

...important implications regarding sources of nitrate and other agrochemical contaminants in the spring basin. Conversely, spring-water...Lexington, KY, 151 p. Deines, P., 1980, The carbon isotope composition of reduced organic carbon: In Fritz, P. and Fontes, J...

Brian Katz; Rick Copeland; Tom Greenhalgh; Ron Ceryak; Warren Zwanka

250

Aqueous nitrate waste treatment: Technology comparison, cost/benefit, and market analysis  

SciTech Connect

The purpose of this analysis is to provide information necessary for the Department of Energy (DOE) to evaluate the practical utility of the Nitrate to Ammonia and Ceramic or Glass (NAC/NAG/NAX) process, which is under development in the Oak Ridge National Laboratory. The NAC/NACx/NAX process can convert aqueous radioactive nitrate-laden waste to a glass, ceramic, or grout solid waste form. The tasks include, but are not limited to, the following: Identify current commercial technologies to meet hazardous and radiological waste disposal requirements. The technologies may be thermal or non-thermal but must be all inclusive (i.e., must convert a radionuclide-containing nitrate waste with a pH around 12 to a stable form that can be disposed at permitted facilities); evaluate and compare DOE-sponsored vitrification, grouting, and minimum additive waste stabilization projects for life-cycle costs; compare the technologies above with respect to material costs, capital equipment costs, operating costs, and operating efficiencies. For the NAC/NAG/NAX process, assume aluminum reactant is government furnished and ammonia gas may be marketed; compare the identified technologies with respect to frequency of use within DOE for environmental management applications with appropriate rationale for use; Assess the potential size of the DOE market for the NAC/NAG/NAX process; assess and off-gas issues; and compare with international technologies, including life-cycle estimates.

Not Available

1994-01-01T23:59:59.000Z

251

Effect of Phosphate, Fluoride, and Nitrate on Gibbsite Dissolution Rate and Solubility  

SciTech Connect

Laboratory tests have been completed with simulated tank waste samples to investigate the effects of phosphate, fluoride, and nitrate on the dissolution rate and equilibrium solubility of gibbsite in sodium hydroxide solution at 22 and 40{degrees}C. Results are compared to relevant literature data and to computer model predictions. The presence of sodium nitrate (3 M) caused a reduction in the rate of gibbsite dissolution in NaOH, but a modest increase in the equilibrium solubility of aluminum. The increase in solubility was not as large, though, as the increase predicted by the computer model. The presence of phosphate, either as sodium phosphate or sodium fluoride phosphate, had a negligible effect on the rate of gibbsite dissolution, but caused a slight increase in aluminum solubility. The magnitude of the increased solubility, relative to the increase caused by sodium nitrate, suggests that the increase is due to ionic strength (or water activity) effects, rather than being associated with the specific ion involved. The computer model predicted that phosphate would cause a slight decrease in aluminum solubility, suggesting some Al-PO4 interaction. No evidence was found of such an interaction.

Herting, Daniel L. [Washington River Protection Solutions LLC (United States)

2014-01-29T23:59:59.000Z

252

A Path to High-Concentration Luminescent Solar Concentrators  

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

and Impact LSCs enable non-tracking concentration of both direct sunlight and diffuse light onto high- efficiency solar cells, and our work predicts unprecendented levels of...

253

Export.gov - Export.gov - Locations  

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

Locations Locations Print | E-mail Page Locations 800.872.8723 Domestic Offices International Offices Locations 800.872.8723 Call: 800.872.8723 (1-800-USA-TRAD(E)) Email: tic@trade.gov between 8:30 AM and 6 PM EST to receive immediate answers to your exporting questions on: Tariff and Tax Information Country-specific General Export Information Region-specific Export Information (Middle East, China, Latin America, EU, etc.) International Documentation, Regulations and Standards Logistics and Finance (HS/Schedule B numbers, Freight Forwarders, partners) Free Trade Agreements (qualifying products for FTA benefits, Certificates of origin.) Trade Data Export-related information offered by federal, state and local entities Export-related information related to other USG agencies Note for Importers: Please contact U.S. Customs at 877.227.5511

254

Addressing endogeneity in residential location models  

E-Print Network (OSTI)

Some empirical residential location choice models have reported dwelling-unit price estimated parameters that are small, not statistically significant, or even positive. This would imply that households are non-sensitive ...

Guevara-Cue, Cristián Angelo

2005-01-01T23:59:59.000Z

255

Location privacy in mobile computing environments  

Science Journals Connector (OSTI)

In general, privacy can be viewed as the right to be left alone when desired (solitude), the right to remain anonymous (anonymity), and the right to confidentiality (secrecy of information). More specifically, location privacy is “the ability to ...

John P. Baugh; Jinhua Guo

2006-09-01T23:59:59.000Z

256

Data semantics in location-based services  

Science Journals Connector (OSTI)

As location-based applications become part of our everyday life, ranging from traffic prediction systems to services over mobile phones providing us with information about our surroundings, the call for more semantics and accurate services is emerging. ...

Nectaria Tryfona; Dieter Pfoser

2005-01-01T23:59:59.000Z

257

Russian Locations | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Locations | National Nuclear Security Administration Locations | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Russian Locations Home > About Us > Our Programs > Defense Programs > Future Science & Technology Programs > Office of Advanced Simulation and Computing and Institutional R&D Programs > Russia Tri-Lab S&T Collaborations > Travel

258

Alternative Fueling Station Locator | Department of Energy  

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

Alternative Fueling Station Locator Alternative Fueling Station Locator Alternative Fueling Station Locator Find Stations Plan a Route Location: Go Start: End: Go Fuel: All Fuels Biodiesel (B20 and above) Compressed Natural Gas Electric Ethanol (E85) Hydrogen Liquefied Natural Gas (LNG) Liquefied Petroleum Gas (Propane) more search options close × More Search Options Include private stations Include planned stations Owner All Private Federal State Local Utility Payment All American Express Discover MasterCard VISA Cash Checks CFN Clean Energy Fuel Man Gas Card PHH Services Voyager WEX Electric charger types Include level 1 Include level 2 Include DC fast Include legacy chargers Limit results to within 5 miles Limit results to within 5 miles 12,782 alternative fuel stations in the United States Excluding private stations

259

Location-Aware Instant Search Ruicheng Zhong  

E-Print Network (OSTI)

to find a gas station nearby, she can issue a keyword query "gas station" to a LBS system, which returns the relevant gas stations by considering the user's location and keywords. Traditional spatial keyword search

Li, Guoliang

260

Nitrate movement in soils and nitrogen uptake efficiency as affected by nitrogen source, time of application, and a nitrification inhibitor  

E-Print Network (OSTI)

NITRATE MOVEMENT IN SOILS AND NITROGEN UPTAKE EFFICIENCY AS AFFECTED BY NITROGEN SOURCEs TINE OF APPLICATIONs AIJD A NITRIFICATION INHIBITOR A Thesis by KENNETH PHAIJON BANKS Submitted to the Graduate College of Texas A&N University..., Norwood silt loam (Typic Udifluvent) and Houston Black clay (Udic Pellustert) to determine the amount of N03-N leaching from various N fertilizer sources. Nitrate N movement, as affected by time of application, was determined for (NHq)2 Sop, urea...

Banks, Kenneth Phanon

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Agricultural Chemical Movement through a Field-Size Watershed in Iowa:? Surface Hydrology and Nitrate Losses in Discharge  

Science Journals Connector (OSTI)

Agricultural Chemical Movement through a Field-Size Watershed in Iowa:? Surface Hydrology and Nitrate Losses in Discharge ... In this paper, we illustrate another aspect of the “water quality profile” conceptual model (4) for assessing impacts of farming systems using an analysis of the surface hydrology and nitrate distribution in surface runoff, headcut seepage, and basin drainage from a high relief landscape. ... Surface runoff resulting from snowmelt occurs whenever solar-radiated heat penetrates the snow and heats the soil surface beneath it. ...

Thomas R. Steinheimer; Kenwood D. Scoggin; Larry A. Kramer

1998-02-28T23:59:59.000Z

262

Locating and identifying codes in circulant networks  

Science Journals Connector (OSTI)

A set S of vertices of a graph G is a dominating set of G if every vertex u of G is either in S or it has a neighbour in S. In other words, S is dominating if the sets S@?N[u] where u@?V(G) and N[u] denotes the closed neighbourhood of u in G, are all ... Keywords: Circulant network, Domination, Identifying code, Locating code, Locating-dominating set

M. Ghebleh; L. Niepel

2013-09-01T23:59:59.000Z

263

Personal Digital Assistant PDA ----Location Based  

E-Print Network (OSTI)

, xur],[ ybl, yur ]) k k=100 K k k- AminAmin kLk k Amax TmaxTmax kAminLocation Anonymization ConstraintsAmax TmaxLocation Service Quality Constraints 3.3 3.3.1 id, loc, query id loc (x,y)query GPS / l- l- k- l- k l- l l- l- m-invariant 2 29 #12;[22] A B C D E F R1 R2 R3 6 Outlier 6

264

Assessment of the 296-S-21 Stack Sampling Probe Location  

SciTech Connect

Tests were performed to assess the suitability of the location of the air sampling probe on the 296-S-21 stack according to the criteria of ANSI N13.1-1999, Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities. Pacific Northwest National Laboratory conducted most tests on a 3.67:1 scale model of the stack. CH2MHill also performed some limited confirmatory tests on the actual stack. The tests assessed the capability of the air-monitoring probe to extract a sample representative of the effluent stream. The tests were conducted for the practical combinations of operating fans and addressed: (1) Angular Flow--The purpose is to determine whether the velocity vector is aligned with the sampling nozzle. The average yaw angle relative to the nozzle axis should not be more than 20. The measured values ranged from 5 to 11 degrees on the scale model and 10 to 12 degrees on the actual stack. (2) Uniform Air Velocity--The gas momentum across the stack cross section where the sample is extracted should be well mixed or uniform. The uniformity is expressed as the variability of the measurements about the mean, the coefficient of variance (COV). The lower the COV value, the more uniform the velocity. The acceptance criterion is that the COV of the air velocity must be ?20% across the center two-thirds of the area of the stack. At the location simulating the sampling probe, the measured values ranged form 4 to 11%, which are within the criterion. To confirm the validity of the scale model results, air velocity uniformity measurements were made both on the actual stack and on the scale model at the test ports 1.5 stack diameters upstream of the sampling probe. The results ranged from 6 to 8% COV on the actual stack and 10 to 13% COV on the scale model. The average difference for the eight runs was 4.8% COV, which is within the validation criterion. The fact that the scale model results were slightly higher than the actual stack suggests that the other test results on the scale model are conservative relative to the actual stack. (3) Uniform Concentration of Tracer Gases--A uniform contaminant concentration in the sampling plane enables the extraction of samples that represent the true concentration. This was first tested using a tracer gas to represent gaseous effluents. The fan is a good mixer, so injecting the tracer downstream of the fans provides worst-case results. The acceptance criteria are that (1) the COV of the measured tracer gas concentration is ?20% across the center two-thirds of the sampling plane and (2) at no point in the sampling plane does the concentration vary from the mean by >30%. The results on the scale model at the point simulating the sampling probe ranged from 0.3 to 6 %COV, and the maximum single point deviation from the mean was -10%. (4) Uniform Concentration of Tracer Particles--Uniformity in contaminant concentration at the sampling probe was further demonstrated using tracer particles large enough to exhibit inertial effects. Particles of 10-?m aerodynamic diameter were used. The acceptance criterion is that the COV of particle concentration is ?20% across the center two-thirds of the sampling plane. The scale model results ranged form 2 to 9%. Based on these tests, the location of the air sampling probe on the 296-S-21 stack meets the requirements of the ANSI/HPS N13.1-1999 standard.

Glissmeyer, John A.

2006-09-08T23:59:59.000Z

265

The Value of Flexibility in Robust Location-Transportation Problem  

E-Print Network (OSTI)

production and distribution of products can be delayed until actual orders are ... such as hub locations, supplier locations, air freight hub locations, railway station

2014-11-24T23:59:59.000Z

266

MOLECULAR APPROACHES FOR IN SITU IDENTIFCIATION OF NITRATE UTILIZATION BY MARINE BACTERIA AND PHYTOPLANKTON  

SciTech Connect

Traditionally, the importance of inorganic nitrogen (N) for the nutrition and growth of marine phytoplankton has been recognized, while inorganic N utilization by bacteria has received less attention. Likewise, organic N has been thought to be important for heterotrophic organisms but not for phytoplankton. However, accumulating evidence suggests that bacteria compete with phytoplankton for nitrate (NO3-) and other N species. The consequences of this competition may have a profound effect on the flux of N, and therefore carbon (C), in ocean margins. Because it has been difficult to differentiate between N uptake by heterotrophic bacterioplankton versus autotrophic phytoplankton, the processes that control N utilization, and the consequences of these competitive interactions, have traditionally been difficult to study. Significant bacterial utilization of DIN may have a profound effect on the flux of N and C in the water column because sinks for dissolved N that do not incorporate inorganic C represent mechanisms that reduce the atmospheric CO2 drawdown via the ?biological pump? and limit the flux of POC from the euphotic zone. This project was active over the period of 1998-2007 with support from the DOE Biotechnology Investigations ? Ocean Margins Program (BI-OMP). Over this period we developed a tool kit of molecular methods (PCR, RT-PCR, Q-PCR, QRT-PCR, and TRFLP) and combined isotope mass spectrometry and flow-cytometric approaches that allow selective isolation, characterization, and study of the diversity and genetic expression (mRNA) of the structural gene responsible for the assimilation of NO3- by heterotrophic bacteria (nasA). As a result of these studies we discovered that bacteria capable of assimilating NO3- are ubiquitous in marine waters, that the nasA gene is expressed in these environments, that heterotrophic bacteria can account for a significant fraction of total DIN uptake in different ocean margin systems, that the expression of nasA is differentially regulated in genetically distinct NO3- assimilating bacteria, and that the best predictors of nasA gene expression are either NO3- concentration or NO3- uptake rates. These studies provide convincing evidence of the importance of bacterial utilization of NO3-, insight into controlling processes, and provide a rich dataset that are being used to develop linked C and N modeling components necessary to evaluate the significance of bacterial DIN utilization to global C cycling. Furthermore, as a result of BI-OMP funding we made exciting strides towards institutionalizing a research and education based collaboration between the Skidaway Institute of Oceanography (SkIO) and Savannah State University (SSU), an historically black university within the University System of Georgia with undergraduate and now graduate programs in marine science. The BI-OMP program, in addition to supporting undergraduate (24) graduate (10) and postdoctoral (2) students, contributed to the development of a new graduate program in Marine Sciences at SSU that remains an important legacy of this project. The long-term goals of these collaborations are to increase the capacity for marine biotechnology research and to increase representation of minorities in marine, environmental and biotechnological sciences.

Frischer, Marc E. [Skidaway Institute of Oceanography; Verity, Peter G.; Gilligan, Mathew R.; Bronk, Deborah A.; Zehr, Jonathan P.; Booth, Melissa G.

2013-09-12T23:59:59.000Z

267

Cylindrical Acoustic Levitator/Concentrator  

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

Cylindrical Acoustic Levitator/Concentrator Cylindrical Acoustic Levitator/Concentrator Cylindrical Acoustic Levitator/Concentrator A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. Available for thumbnail of Feynman Center (505) 665-9090 Email Cylindrical Acoustic Levitator/Concentrator A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. It is constructed from a commercially available, hollow cylindrical piezoelectric crystal which has been modified to tune the resonance frequency of the breathing mode resonance of the crystal to that

268

PARKS, RECREATION & TOURISM Concentration in  

E-Print Network (OSTI)

PARKS, RECREATION & TOURISM Concentration in Conservation Law Enforcement School Experience in Parks, Recreation, and Tourism 1 Semester 5 Semester 6 SFR 434/534 - Recreation Site Planning

Thomas, Andrew

269

Sandia National Laboratories: concentrating photovoltaic  

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

Energy Efficiency On March 29, 2013, in Concentrating Solar Power, Energy, Partnership, Photovoltaic, Renewable Energy, Research & Capabilities, Solar, Systems Engineering MODE...

270

Concentrated solar power on demand .  

E-Print Network (OSTI)

??This thesis describes a new concentrating solar power central receiver system with integral thermal storage. Hillside mounted heliostats direct sunlight into a volumetric absorption molten… (more)

Codd, Daniel Shawn

2011-01-01T23:59:59.000Z

271

Scaled Tests and Modeling of Effluent Stack Sampling Location Mixing  

SciTech Connect

The Pacific Northwest National Laboratory researchers used a computational fluid dynamics (CFD) computer code to evaluate the mixing at a sampling system location of a research and development facility. The facility requires continuous sampling for radioactive air emissions. Researchers sought to determine whether the location would meet the criteria for uniform air velocity and contaminant concentration as prescribed in the American National Standard Institute (ANSI) standard, Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities. Standard ANSI/HPS N13.1-1999 requires that the sampling location be well-mixed and stipulates specific tests (e.g., velocity, gas, and aerosol uniformity and cyclonic flow angle) to verify the extent of mixing.. The exhaust system for the Radiochemical Processing Laboratory was modeled with a CFD code to better understand the flow and contaminant mixing and to predict mixing test results. The CFD results were compared to actual measurements made at a scale-model stack and to the limited data set for the full-scale facility stack. Results indicated that the CFD code provides reasonably conservative predictions for velocity, gas, and aerosol uniformity. Cyclonic flow predicted by the code is less than that measured by the required methods. In expanding from small to full scale, the CFD predictions for full-scale measurements show similar trends as in the scale model and no unusual effects. This work indicates that a CFD code can be a cost-effective aid in design or retrofit of a facility’s stack sampling location that will be required to meet Standard ANSI/HPS N13.1-1999.

Recknagle, Kurtis P.; Yokuda, Satoru T.; Ballinger, Marcel Y.; Barnett, J. M.

2009-02-01T23:59:59.000Z

272

Declaration of Concentration in Nanotechnology  

E-Print Network (OSTI)

Declaration of Concentration in Nanotechnology Return completed form to ENG Undergraduate Records:____________________________ Instructions: ENG students declaring a Concentration in Nanotechnology should complete this form, obtain REQUIRED COURSES (Choose 1) 1. ENG EC 481­ Fundamentals of Nanomaterials and Nanotechnology 4.0 ELECTIVES

Goldberg, Bennett

273

Project Approval Form Concentration in  

E-Print Network (OSTI)

Project Approval Form Concentration in Nanotechnology Return completed form to ENG Undergraduate Plan to complete the project as a requirement for the concentration in Nanotechnology. Depending upon project, you will need to submit a written summary of your work, signed (approved) by your project

Goldberg, Bennett

274

Process for concentrated biomass saccharification  

DOE Patents (OSTI)

Processes for saccharification of pretreated biomass to obtain high concentrations of fermentable sugars are provided. Specifically, a process was developed that uses a fed batch approach with particle size reduction to provide a high dry weight of biomass content enzymatic saccharification reaction, which produces a high sugars concentration hydrolysate, using a low cost reactor system.

Hennessey, Susan M. (Avondale, PA); Seapan, Mayis (Landenberg, PA); Elander, Richard T. (Evergreen, CO); Tucker, Melvin P. (Lakewood, CO)

2010-10-05T23:59:59.000Z

275

Alternative Fueling Station Locations | OpenEI  

Open Energy Info (EERE)

Alternative Fueling Station Locations Alternative Fueling Station Locations Dataset Summary Description Alternative fueling stations are located throughout the United States and their availability continues to grow. The Alternative Fuels Data Center (AFDC) maintains a website where you can find alternative fuels stations near you or on a route, obtain counts of alternative fuels stations by state, view U.S. maps, and more. Access up-to-date fuel station data here: http://www.afdc.energy.gov/afdc/data_download The dataset available for download here provides a "snapshot" of the alternative fueling station information for: compressed natural gas (CNG), E85 (85% ethanol, 15% gasoline), propane/liquefied petroleum gas (LPG), biodiesel, electricity, hydrogen, and liquefied natural gas

276

Open neighborhood locating–dominating in trees  

Science Journals Connector (OSTI)

For a graph G that models a facility or a multiprocessor network, detection devices can be placed at the vertices so as to identify the location of an intruder such as a thief or saboteur or a faulty processor. Open neighborhood locating–dominating sets are of interest when the intruder/fault at a vertex precludes its detection at that location. The parameter OLD ( G ) denotes the minimum cardinality of a vertex set S ? V ( G ) such that for each vertex v in V ( G ) its open neighborhood N ( v ) has a unique non-empty intersection with S . For a tree T n of order n we have ? n / 2 ? + 1 ? OLD ( T n ) ? n ? 1 . We characterize the trees that achieve these extremal values.

Suk J. Seo; Peter J. Slater

2011-01-01T23:59:59.000Z

277

The pipeline and valve location problem  

Science Journals Connector (OSTI)

This paper, proposes an exact algorithm for the problem of locating a pipeline between two points of a network, as well as a set of safety valves which help control the damage caused by possible spills along the pipeline. A labelling approach is developed to determine simultaneously the optimal pipeline and valve locations, with the objective of optimising an impact measure that depends on the average number of accidents and their cost. Computational experiments on grid and random instances are presented in order to evaluate the algorithm's performance and to compare its results to the solutions provided by sequential approaches. [Received 11 May 2010; Revised 10 October 2010; Accepted 21 November 2010

Gilbert Laporte; Marta M.B. Pascoal

2012-01-01T23:59:59.000Z

278

Driver expectancy in locating automotive controls  

E-Print Network (OSTI)

to determine if any of these factors had any effect on the distributions of control locations. In the final phase of the study McGrath measured response time and errors in locating controls in two cars, one was a 1973 Toyota and the other a 1973 Buick..., Chrysler, and Dodge. Also included were the following far eastern car makes: Toyota, Honda, Mazda, Hyundai, Isuzu, Nissan, and Geo. The automobiles were divided into six groups: 14 1. Foreign-make, small, mid-size, and sports cars. 2. Foreign...

Francis, Dawn Suzette

1990-01-01T23:59:59.000Z

279

CONCENTRATES  

Science Journals Connector (OSTI)

Tertiary oil recovery shows promise with a new nonthermal process developed by Marathon Oil Co., Findlay, Ohio. ... Marathon says tests in its old southeastern Illinois oil field (only 60 to 65% depleted) show that the scheme can recover a high proportion of the remaining petroleum. ... The company ran two oil-well test patterns, injecting emulsion in the center well and drawing up fluid in surrounding wells. ...

1966-09-19T23:59:59.000Z

280

CONCENTRATES  

Science Journals Connector (OSTI)

A possible new gamma ray source in the constellation Scorpius will be sought by Dr. Robert C. Haymes, Rice University, using a gamma ray telescope mounted on a balloon launched in Argentina. ... Radiation analysis should tell whether the rays come from an exploding star, high energy particles, or anti-matter. ...

1969-10-20T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

CONCENTRATES  

Science Journals Connector (OSTI)

Cadarache, France, was selected last week to be the site for the International Thermonuclear Experimental Reactor (ITER) project. ... ITER's goal is to demonstrate a self-sustaining fusion reaction in a power-plant-like environment that could lead to commercial nuclear fusion power plants by the turn of the century, said Raymond L. Orbach, head of the Department of Energy's Office of Science. ...

2005-07-04T23:59:59.000Z

282

CONCENTRATES  

Science Journals Connector (OSTI)

EVONIK PULLS BACK IPO, INVESTS IN R&DEvonik Industries has once again shelved an initial public offering (IPO) of stock. In April, RAG Foundation, which owns about 75% of the firm, said that it was considering an IPO within the next 15 months and that ...

2011-10-03T23:59:59.000Z

283

CONCENTRATES  

Science Journals Connector (OSTI)

SHIN-ETSU MAKES FIRST MAJOR CHINA INVESTMENT ... Although China is a major market for Shin-Etsu, Japan’s most profitable chemical maker, the company has until now refrained from making large investments there because it perceived the political risk to be too great. ... Citing rising global demand from tire makers, Lanxess says it will invest about $25 million to raise butyl and halobutyl rubber capacity at its site in Zwijndrecht, Belgium. ...

2010-07-05T23:59:59.000Z

284

CONCENTRATES  

Science Journals Connector (OSTI)

The student-designed homes were required to provide enough electricity to meet all home energy needs as well as enough to charge up an electric car. ...

2002-10-14T23:59:59.000Z

285

CONCENTRATES  

Science Journals Connector (OSTI)

The Department of Energy last week denied $2 billion in loan guarantees sought by the global energy company USEC to continue construction of its partially complete centrifuge-based uranium enrichment facility in Piketon, Ohio, which would create low-enrichment uranium (LEU) fuel for nuclear power plants. ... DOE did, however, offer USEC some $45 million in grants for further research. ... Currently, USEC produces about half the nation’s LEU reactor fuel primarily by down-blending Russian bomb-grade uranium, along with using an older, noncentrifuge-based enrichment technology. ...

2009-08-03T23:59:59.000Z

286

CONCENTRATES  

Science Journals Connector (OSTI)

CSB SLAMS XCEL ENERGY FOR DEADLY ACCIDENT ... A flash fire that killed five workers in a deep underground tunnel nearly three years ago was caused by safety failures of Xcel Energy and contractor RPI Coating, says a report by the Chemical Safety & Hazard Investigation Board (CSB), released on Aug. 25. ... CSB’s report blamed Xcel and RPI for failing to train workers and to take adequate precautions when handling MEK. ...

2010-08-30T23:59:59.000Z

287

CONCENTRATES  

Science Journals Connector (OSTI)

GAO faults NRC for oversight of nuclear plant security plansThe Nuclear Regulatory Commission (NRC) is relying too heavily on nuclear power plant owners to verify the adequacy of their terrorism security plans, says a recent report by the Government ...

2004-09-20T23:59:59.000Z

288

CONCENTRATES  

Science Journals Connector (OSTI)

Worldwide, chemical industry products reduced emissions of greenhouse gases far more than the emissions generated in making these products, according to a study by McKinsey & Co. ... Next came compact fluorescent lighting, fertilizers, and lightweight composite materials. ...

2009-07-13T23:59:59.000Z

289

CONCENTRATES  

Science Journals Connector (OSTI)

A team led by Amy E. Landis of the University of Pittsburgh evaluated a dozen polymers: seven derived from petroleum, four from biomass feedstocks, and one in part from both sources. ...

2010-10-04T23:59:59.000Z

290

CONCENTRATES  

Science Journals Connector (OSTI)

DOE announces cleanups, fines, new safety plans ... DOE also announced $124,000 in fines against contractors operating at the Hanford Site in Washington, the Rocky Flats Site in Colorado, and the Idaho National Engineering & Environmental Laboratory for endangering workers through exposure to radioactive contamination.? ...

2000-06-05T23:59:59.000Z

291

CONCENTRATES  

Science Journals Connector (OSTI)

COURT BACKS LILLY IN PATENT CASEA federal appeals court has ruled in favor of Eli Lilly & Co. in a patent dispute with Ariad Pharmaceuticals. The U.S. Court of Appeals for the Federal Circuit found that Lilly did not violate a patent held by Ariad ...

2010-03-29T23:59:59.000Z

292

CONCENTRATES  

Science Journals Connector (OSTI)

TECHNOLOGY ... A thermocouple developed by North American Rockwell for the Apollo lunar landing program will be manufactured and marketed by William Wahl Corp., Santa Monica, Calif. ... Potential uses include making refractory metals and development of gas turbine engines, a company spokesman says. ...

1969-10-13T23:59:59.000Z

293

CONCENTRATES  

Science Journals Connector (OSTI)

For instance, Los Alamos National Laboratory officials believe that using plutonium in NIF and achieving repeatable thermonuclear ignition is critical to NIF's value in weapons work, yet NIF has not been approved for plutonium use and its ability to achieve nuclear ignition is uncertain, the report says. ...

2001-06-11T23:59:59.000Z

294

The gas-phase bis-uranyl nitrate complex [(UO2)2(NO3)5]-: infrared spectrum and structure  

SciTech Connect

The infrared spectrum of the bis-uranyl nitrate complex [(UO2)2(NO3)5]- was measured in the gas phase using multiple photon dissociation (IRMPD). Intense absorptions corresponding to the nitrate symmetric and asymmetric vibrations, and the uranyl asymmetric vibration were observed. The nitrate v3 vibrations indicate the presence of nitrate in a bridging configuration bound to both uranyl cations, and probably two distinct pendant nitrates in the complex. The coordination environment of the nitrate ligands and the uranyl cations were compared to those in the mono-uranyl complex. Overall, the uranyl cation is more loosely coordinated in the bis-uranyl complex [(UO2)2(NO3)5]- compared to the mono-complex [UO2(NO3)3]-, as indicated by a higher O-U-O asymmetric stretching (v3) frequency. However, the pendant nitrate ligands are more strongly bound in the bis-complex than they are in the mono-uranyl complex, as indicated by the v3 frequencies of the pendant nitrate, which are split into nitrosyl and O-N-O vibrations as a result of bidentate coordination. These phenomena are consistent with lower electron density donation per uranyl by the nitrate bridging two uranyl centers compared to that of a pendant nitrate in the mono-uranyl complex. The lowest energy structure predicted by density functional theory (B3LYP functional) calculations was one in which the two uranyl molecules bridged by a single nitrate coordinated in a bis-bidentate fashion. Each uranyl molecule was coordinated by two pendant nitrate ligands. The corresponding vibrational spectrum was in excellent agreement with the IRMPD measurement, confirming the structural assignment.

Groenewold, G. S.; van Stipdonk, Michael J.; Oomens, Jos; De Jong, Wibe A.; McIIwain, Michael E.

2011-12-01T23:59:59.000Z

295

The gas-phase bis-uranyl nitrate complex [(UO2)(2)(NO3)(5)](-): infrared spectrum and structure  

SciTech Connect

The infrared spectrum of the bis-uranyl nitrate complex [(UO{sub 2}){sub 2}(NO{sub 3}){sub 5}]{sup -} was measured in the gas phase using multiple photon dissociation (IRMPD). Intense absorptions corresponding to the nitrate symmetric and asymmetric vibrations, and the uranyl asymmetric vibration were observed. The nitrate nu3 vibrations indicate the presence of nitrate in a bridging configuration bound to both uranyl cations, and probably two distinct pendant nitrates in the complex. The coordination environment of the nitrate ligands and the uranyl cations were compared to those in the mono-uranyl complex. Overall, the uranyl cation is more loosely coordinated in the bis-uranyl complex [(UO{sub 2}){sub 2}(NO{sub 3}){sub 5}]{sup -} compared to the mono-complex [UO{sub 2}(NO{sub 3}){sub 3}]{sup -}, as indicated by a higher O-U-O asymmetric stretching (nu3) frequency. However, the pendant nitrate ligands are more strongly bound in the bis-complex than they are in the mono-uranyl complex, as indicated by the {nu}{sub 3} frequencies of the pendant nitrate, which are split into nitrosyl and O-N-O vibrations as a result of bidentate coordination. These phenomena are consistent with lower electron density donation per uranyl by the nitrate bridging two uranyl centers compared to that of a pendant nitrate in the mono-uranyl complex. The structure was calculated using density functional theory (B3LYP functional), which produced a structure in which the two uranyl molecules bridged by a single nitrate coordinated in a bis-bidentate fashion. Each uranyl molecule was coordinated by two pendant nitrate ligands. The corresponding vibrational spectrum was in excellent agreement with the IRMPD measurement, confirming the structural assignment.

Gary S. Groenewold; Michael J. van Stipdonk; Jos Oomens; Wibe de Jong; Michael E. McIlwain

2011-12-01T23:59:59.000Z

296

Rack Locations (24) Hatch and Berthing  

E-Print Network (OSTI)

Rack Locations (24) Hatch and Berthing Mechanism Endcone Airflow and Plumbing Crossover Corner requirements of 24 equipment racks. Approximately half of these are for accommodation and control of ISS ) Width 4.3 m diameter (14 ft) Mass 14,515 kg (32,000 lb) 24,023 kg (52,962 lb) with all racks

297

Transportation Networks and Location A Geometric Approach  

E-Print Network (OSTI)

Transportation Networks and Location A Geometric Approach Belén Palop1,2 1Departamento de March 2009 Florida State University #12;Belén Palop, UVa, SUNY Outline Transportation Network Model;Transportation Network Model Belén Palop, UVa, SUNY Outline Transportation Network Model Network placement

Palop del Río, Belén

298

Forecasting the Locational Dynamics of Transnational Terrorism  

E-Print Network (OSTI)

Forecasting the Locational Dynamics of Transnational Terrorism: A Network Analytic Approach Bruce A-0406 Fax: (919) 962-0432 Email: skyler@unc.edu Abstract--Efforts to combat and prevent transnational terror of terrorism. We construct the network of transnational terrorist attacks, in which source (sender) and target

Massachusetts at Amherst, University of

299

Recycling Bin Guide Locations and prices  

E-Print Network (OSTI)

Recycling Bin Guide Locations and prices Metal Bins Deskside Bins with Side Saddle Rubbermaid Bins.58 for auxiliaries. And Non-Public Areas Public Offices Non-Public Recyclables Recyclables RecyclablesTrash Trash Trash #12;New Recycling Bin Guidelines Frequently Asked Questions (as of December 2008) · Why

Kirschner, Denise

300

Location management and Moving Objects Databases  

E-Print Network (OSTI)

wolfson@cs.uic.edu #12;2 Location based services Examples: Where closest gas station? How do I get there;13 Applications-- Summary · Geographic resource discovery-- e.g. "Closest gas station" · Digital Battlefield/trigger examples: · During the past year, how many times was bus#5 late by more than 10 minutes at station 20

Wolfson, Ouri E.

Note: This page contains sample records for the topic "location concentration nitrate" 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

Therapy: location-aware assessment and tasks  

Science Journals Connector (OSTI)

In this paper, we present a system that allows therapists to assess and engage patients' in activities triggered by specific stressing contexts. The system is composed by: 1) a web application that the therapist uses to specify the activities and its ... Keywords: location based services, physiological recording, therapy

Luís Carriço; Marco de Sá; Luís Duarte; Tiago Antunes

2012-03-01T23:59:59.000Z

302

Safe handling of TBP and nitrates in the nuclear process industry  

SciTech Connect

A laboratory and literature study was made of the reactions of tri-n-butyl phosphate (TBP) with nitric acid and nitrates. Its goal was to establish safe conditions for solvent extraction processes involving these chemicals. The damaging explosions at the Tomsk-7 PUREX plant in Russia graphically illustrated the potential hazard involved in such operations. The study has involved a review of prior and contemporary experiments, and new experiments to answer particular questions about these reactions. TBP extracts nitric acid and some metal nitrates from aqueous solutions. The resulting liquid contains both oxidant and reductant, and can react exothermically if heated sufficiently. Safe handling of these potentially reactive materials involves not only limiting the heat generated by the chemical reaction, but also providing adequate heat removal and venting. Specifically, the following recommendations are made to ensure safety: (1) tanks in which TBP-nitrate complexes are or may be present should be adequately vented to avoid pressurization. Data are supplied as a basis for adequacy; (2) chemically degraded TBP, or TBP that has sat a long time in the presence of acids or radiation, should be purified before use in solvent extraction; (3) evaporators in which TBP might be introduced should be operated at a controlled temperature, and their TBP content should be limited; (4) evaporator bottoms that may contain TBP should be cooled under conditions that ensure heat removal. Finally, process design should consider the potential for such reactions, and operators should be made aware of this potential, so that it is considered during training and process operation.

Hyder, M.L.

1994-07-01T23:59:59.000Z

303

Measurements of thoron progeny concentration using apotential alpha-energy monitor in Japan  

SciTech Connect

It is reported that thoron concentration in Japanese dwellings may be higher than in other dwellings. Therefore, in order to assess the risk for indoor thoron progeny, the portable potential alpha-energy monitor has been developed. The monitor detects alpha-particles from the {sup 212}Po collected on the filter using a piece of cellulose nitrate film. The detection efficiency of the alpha-particles has been estimated by Monte Carlo calculation. From the results of measurements, the mean indoor thoron progeny concentration in the dwellings was 1.5 Bq m{sup -3} (EC{sub Tn}), and ranged from 0.04 to 8.2 Bq m{sup -3}. The effects of three typical interior walls (soil-based plaster, concrete, and modern materials) on the thoron progeny supply were considered. The mean annual effective dose equivalent was 0.45 mSv. 13 refs., 5 figs., 1 tab.

Yamasaki, T. [Chubu Electric Power Company, Inc., Nagoya (Japan); Iida, T. [Nagoya Univ. (Japan)

1995-06-01T23:59:59.000Z

304

In-Situ Silver Acetylide Silver Nitrate Explosive Deposition Measurements Using X-Ray Fluorescence.  

SciTech Connect

The Light Initiated High Explosive facility utilized a spray deposited coating of silver acetylide - silver nitrate explosive to impart a mechanical shock into targets of interest. A diagnostic was required to measure the explosive deposition in - situ. An X - ray fluorescence spectrometer was deployed at the facility. A measurement methodology was developed to measure the explosive quantity with sufficient accuracy. Through the use of a tin reference material under the silver based explosive, a field calibration relationship has been developed with a standard deviation of 3.2 % . The effect of the inserted tin material into the experiment configuration has been explored.

Covert, Timothy T.

2014-09-01T23:59:59.000Z

305

Neutron scattering study of two-magnon states in the quantum magnet copper nitrate  

Science Journals Connector (OSTI)

We report measurements of the two-magnon states in a dimerized antiferromagnetic chain material, copper nitrate [Cu(NO3)2?2.5D2O]. Using inelastic neutron scattering we have measured the one- and two-magnon excitation spectra in a large single crystal. The data are in excellent agreement with a perturbative expansion of the alternating Heisenberg Hamiltonian from the strongly dimerized limit. The expansion predicts a two-magnon bound state for q?(2n+1)?d which is consistent with the neutron scattering data.

D. A. Tennant; C. Broholm; D. H. Reich; S. E. Nagler; G. E. Granroth; T. Barnes; K. Damle; G. Xu; Y. Chen; B. C. Sales

2003-02-27T23:59:59.000Z

306

Instrument Development and Measurements of the Atmospheric Pollutants Sulfur Dioxide, Nitrate Radical, and Nitrous Acid by Cavity Ring-down Spectroscopy and Cavity Enhanced Absorption Spectroscopy  

E-Print Network (OSTI)

A. , A method of nitrogen dioxide and sulphur dioxidedetermination of nitrogen dioxide and sulfur dioxide in theDOAS) have measured nitrogen dioxide (NO 2 ), nitrate

Medina, David Salvador

2011-01-01T23:59:59.000Z

307

Standard test method for isotopic abundance analysis of uranium hexa?uoride and uranyl nitrate solutions by multi-collector, inductively coupled plasma-mass spectrometry  

E-Print Network (OSTI)

Standard test method for isotopic abundance analysis of uranium hexa?uoride and uranyl nitrate solutions by multi-collector, inductively coupled plasma-mass spectrometry

American Society for Testing and Materials. Philadelphia

2008-01-01T23:59:59.000Z

308

Environmental Modelling & Software 15 (2000) 161167 www.elsevier.com/locate/envsoft  

E-Print Network (OSTI)

Environmental Modelling & Software 15 (2000) 161­167 www.elsevier.com/locate/envsoft A fuzzy model "contaminated", defined over the set of 70 sampling sites. The higher the concentration, the higher the degree contaminated sites. The proposed fuzzy model is easy to implement and the results are directly interpretable

Kuncheva, Ludmila I.

309

ARM - Measurement - Organic Carbon Concentration  

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

govMeasurementsOrganic Carbon Concentration govMeasurementsOrganic Carbon Concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Organic Carbon Concentration The concentration of carbon bound in organic compounds. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments ACSM : Aerosol Chemical Speciation Monitor Field Campaign Instruments AEROSCARBON : Aerosol Carbon Analyzer AEROSMASSSPEC : Aerosol Mass Spectrometer Datastreams AOS : Aerosol Observing System Datastreams

310

Concentration oscillations and efficiency: glycolysis  

Science Journals Connector (OSTI)

...partitioning of the total free energy decrease, we postulate...Concentration Oscillations and Efficiency: Glycolysis Abstract...the point of view of efficiency offree energy conversion. It is suggested...the adenosine phosphate pool: the PFK reaction at...

PH Richter; J Ross

1981-02-13T23:59:59.000Z

311

Reversible concentric ring microfluidic interconnects  

E-Print Network (OSTI)

A reversible, Chip-to-Chip microfluidic interconnect was designed for use in high temperature, high pressure applications such as chemical microreactor systems. The interconnect uses two sets of concentric, interlocking ...

Thompson, Mary Kathryn, 1980-

2004-01-01T23:59:59.000Z

312

Concentrated Thermoelectric Power | Department of Energy  

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

Concentrated Thermoelectric Power This fact sheet describes a concentrated solar hydroelectric power project awarded under the DOE's 2012 SunShot Concentrating Solar Power R&D...

313

Standard test method for isotopic analysis of hydrolyzed uranium hexafluoride and uranyl nitrate solutions by thermal ionization mass spectrometry  

E-Print Network (OSTI)

1.1 This method applies to the determination of isotopic composition in hydrolyzed nuclear grade uranium hexafluoride. It covers isotopic abundance of 235U between 0.1 and 5.0 % mass fraction, abundance of 234U between 0.0055 and 0.05 % mass fraction, and abundance of 236U between 0.0003 and 0.5 % mass fraction. This test method may be applicable to other isotopic abundance providing that corresponding standards are available. 1.2 This test method can apply to uranyl nitrate solutions. This can be achieved either by transforming the uranyl nitrate solution to a uranyl fluoride solution prior to the deposition on the filaments or directly by depositing the uranyl nitrate solution on the filaments. In the latter case, a calibration with uranyl nitrate standards must be performed. 1.3 This test method can also apply to other nuclear grade matrices (for example, uranium oxides) by providing a chemical transformation to uranyl fluoride or uranyl nitrate solution. 1.4 This standard does not purport to address al...

American Society for Testing and Materials. Philadelphia

2005-01-01T23:59:59.000Z

314

Modeling study of deposition locations in the 291-Z plenum  

SciTech Connect

The TEMPEST (Trent and Eyler 1991) and PART5 computer codes were used to predict the probable locations of particle deposition in the suction-side plenum of the 291-Z building in the 200 Area of the Hanford Site, the exhaust fan building for the 234-5Z, 236-Z, and 232-Z buildings in the 200 Area of the Hanford Site. The Tempest code provided velocity fields for the airflow through the plenum. These velocity fields were then used with TEMPEST to provide modeling of near-floor particle concentrations without particle sticking (100% resuspension). The same velocity fields were also used with PART5 to provide modeling of particle deposition with sticking (0% resuspension). Some of the parameters whose importance was tested were particle size, point of injection and exhaust fan configuration.

Mahoney, L.A.; Glissmeyer, J.A.

1994-06-01T23:59:59.000Z

315

Solidification/Stabilization of High Nitrate and Biodenitrified Heavy Metal Sludges with a Portland Cement/Flyash System  

SciTech Connect

Pond 207C at Rocky Flats Environmental Technology Site (RFETS) contains process wastewaters characterized by high levels of nitrates and other salts, heavy metal contamination, and low level alpha activity. The purpose of this research was to investigate the feasibility of treating a high-nitrate waste, contaminated with heavy metals, with a coupled dewateriug and S/S process, as well as to investigate the effects of biodenitrification pretreatment on the S/S process. Pond 207C residuals served as the target waste. A bench-scale treatability study was conducted to demonstrate an S/S process that would minimize final product volume without a significant decrease in contaminant stabilization or loss of desirable physical characteristics. The process formulation recommended as a result a previous S/S treatability study conducted on Pond 207C residuals was used as the baseline formulation for this research. Because the actual waste was unavailable due to difficulties associated with radioactive waste handling and storage, a surrogate waste, of known composition and representative of Pond 207C residuals, was used throughout this research. The contaminants of regulatory concern added to the surrogate were cadmium, chromium, nickel, and silver. Product volume reduction was achieved by dewatering the waste prior to S/S treatment. The surrogate was dewatered by evaporation at 60 to 80 C to total solids contents from 43% to 78% by weight, and treated with Portland cement and fly ash. Two cement to flyash ratios were tested, 2:1 and 1:2, by weight. Contaminant leachability testing was conducted with a 0.5 water to pozzolan (the cement/flyash mixture) ratio and both cement to flyash ratios. Each product was tested for unconfined compressive strength (UCS) and for contaminant leachability by the Toxicity Characteristics Leaching Procedure (TCLP). At the highest solids content achieved by dewatering, 78% solids by weight, the predicted final waste form volume f or Pond 207C residuals after S/S processing was reduced by over 60 A when compared to the baseline process. All tested process formulations produced final waste forms with an average UCS of 100 psi or greater. Percent fixation of Chrome (VI) increased at higher solids contents. Fixation of nickel varied from over 87% to 69%, and cadmium fixation was greater than 99% at every solids content tested. Silver TCLP extract concentrations were below detection limits in all cases except for one anomalous measurement. Final product volume reduction was not achieved with coupled dewatering and S/S processing after biodenitrification pretreatment. The waste slurry became too viscous to mix with reagents after dewatering to approximately 55% solids. Fixation of contaminant constituents and final product UCSs were similar to the results of S/S processing without biodenitrification. Due to the lack of volume reduction, biodenitrification was not successful as a pretreatment for S/S processing under the test conditions of this research.

Canonico, J.S.

1995-07-26T23:59:59.000Z

316

NREL: Concentrating Solar Power Research - Concentrating Solar Power  

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

Concentrating Solar Power Resource Maps Concentrating Solar Power Resource Maps These direct-normal solar radiation maps-filtered by solar resource and land availability-identify the most economically suitable lands available for deploying of large-scale concentrating solar power plants in the southwestern United States. Each of the following seven states, as well as the southwestern U.S. region, has two maps: the left and right maps represent analyses excluding land with slopes >1% and >3%, respectively. Lower-resolution jpg versions are available below; much higher-resolution pdf files, suitable for plotting large-scale posters, can be requested. You can also access an unfiltered direct-normal solar radiation map of the southwestern United States. Download Adobe Reader. Southwestern U.S.

317

Design and development of a high-concentration photovoltaic concentrator  

SciTech Connect

The design and development of a high concentration photovoltaic concentrator module is discussed. The design concept described herein incorporates a curved groove domed Fresnel lens, a high concentration etched multiple vertical junction (EMVJ) solar cell and a passively cooled direct-bonded copper cell mount all packaged in a plastic module. Two seven inch diameter 1200x domed Fresnel lenses were fabricated using single point diamond turning technology. Testing at both GE and Sandia confirmed optical transmission efficiencies of over 83%. Samples of the latest available EMVJ cells were mounted and installed, with a domed Fresnel lens, into a prototype module. Subsequent testing demonstrated net lens-cell efficiencies of 10 to 13%. As a result of this program, salient conclusions have been formulated as to this technology.

Hodge, R C

1982-04-01T23:59:59.000Z

318

Solar concentration/destruction of pesticide rinsewater  

SciTech Connect

To address a growing national problem with generation of wastes and by-products, TVA has been involved for several years with developing and commercializing environmentally responsible practices for eliminating, minimizing, or utilizing various wastes/by-products. In many cases, reducing waste generation is impractical, but the wastes/by-products can be converted into other environmentally sound products. In some instances, conversion to safe, value-added agricultural products is the best or only practical alternative. TVA is currently involved with a diversity of projects converting wastes/by-products into safe, economical, and agriculturally beneficial products. Environmental improvement projects have involved poultry litter, cellulosic wastes, used battery acid, ammonium sulfate fines, lead smelting effluents, deep-welled sulfuric acid/ammonium bisulfate solutions, wood ash, waste magnesium ammonium sulfate slurry from recording tape production, and ammunition plant waste sodium nitrate/ammonium nitrate streams.

Salladay, D.G.; Ash, D.H.; Sullivan, J.M.; Grinstead, J.H. Jr.; Hemmen, J.E.

1992-09-01T23:59:59.000Z

319

Sandia National Laboratories: Locations: Livermore, California: Visiting  

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

California California Livermore, California administration building Our location and hours of operation Sandia/California is located at 7011 East Avenue in Livermore, Calif., a suburban community about 45 miles east of San Francisco. Positioned at the eastern edge of the San Francisco Bay Area, Sandia is within easy commuting distance of many affordable housing communities in San Joaquin County and the Central Valley. The official hours of operation at Sandia/California are from 7:30 a.m. to 4 p.m. PST, Monday through Friday. General inquiries can be made by calling (925) 294-3000. See our contacts page for additional information. Getting here All three major airports in the San Francisco Bay Area provide access to Sandia/California. Oakland International Airport is the closest airport to

320

On -locating–dominating sets in paths  

Science Journals Connector (OSTI)

Assume that G = ( V , E ) is a simple undirected graph, and C is a nonempty subset of V . For every v ? V , we define I r ( v ) = { u ? C ? d G ( u , v ) ? r } , where d G ( u , v ) denotes the number of edges on any shortest path between u and v . If the sets I r ( v ) for v ? C are pairwise different, and none of them is the empty set, we say that C is an r -locating–dominating set in G . It is shown that the smallest 2-locating–dominating set in a path with n vertices has cardinality ? ( n + 1 ) / 3 ? , which coincides with the lower bound proved earlier by Bertrand, Charon, Hudry and Lobstein. Moreover, we give a general upper bound which improves a result of Bertrand, Charon, Hudry and Lobstein.

Iiro Honkala

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Automated Fault Location In Smart Distribution Systems  

E-Print Network (OSTI)

measured at the power substation during a single phase to ground fault clearance [17] .............................................. 111 Figure 26 Analyzed signal using wavelet transform from phase B current during a fault [17..., but are not limited to, substation and feeder relay, intelligent controllers for capacitor bank switches or reclosers, Automatic Meter Reading (AMR) systems installed at the customer sites, power quality meters installed at strategic locations in the system, low...

Lotfifard, Saeed

2012-10-19T23:59:59.000Z

322

Truckstop Electrification Locator | Open Energy Information  

Open Energy Info (EERE)

Truckstop Electrification Locator Truckstop Electrification Locator Jump to: navigation, search Tool Summary Name: Truckstop Electrification Locator Agency/Company /Organization: United States Department of Energy Phase: "Evaluate Options and Determine Feasibility" is not in the list of possible values (Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan, Get Feedback, Develop Finance and Implement Projects, Create Early Successes, Evaluate Effectiveness and Revise as Needed) for this property., "Perpare a Plan" is not in the list of possible values (Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan, Get Feedback, Develop Finance and Implement Projects, Create Early Successes, Evaluate Effectiveness and Revise as Needed) for this property., "Implement the Plan" is not in the list of possible values (Bring the Right People Together, Create a Vision, Determine Baseline, Evaluate Options, Develop Goals, Prepare a Plan, Get Feedback, Develop Finance and Implement Projects, Create Early Successes, Evaluate Effectiveness and Revise as Needed) for this property.

323

Locating and identifying codes in circulant networks  

Science Journals Connector (OSTI)

Abstract A set S of vertices of a graph G is a dominating set of G if every vertex u of G is either in S or it has a neighbour in  S . In other words, S is dominating if the sets S ? N [ u ] where u ? V ( G ) and N [ u ] denotes the closed neighbourhood of u in G , are all nonempty. A set S ? V ( G ) is called a locating code in G , if the sets S ? N [ u ] where u ? V ( G ) ? S are all nonempty and distinct. A set S ? V ( G ) is called an identifying code in G , if the sets S ? N [ u ] where u ? V ( G ) are all nonempty and distinct. We study locating and identifying codes in the circulant networks  C n ( 1 , 3 ) . For an integer n ? 7 , the graph C n ( 1 , 3 ) has vertex set Z n and edges x y where x , y ? Z n and | x ? y | ? { 1 , 3 } . We prove that a smallest locating code in C n ( 1 , 3 ) has size ? n / 3 ? + c , where c ? { 0 , 1 } , and a smallest identifying code in C n ( 1 , 3 ) has size ? 4 n / 11 ? + c ? , where c ? ? { 0 , 1 } .

M. Ghebleh; L. Niepel

2013-01-01T23:59:59.000Z

324

Treatment of nitrate-rich water in a baffled membrane bioreactor (BMBR) employing waste derived materials  

Science Journals Connector (OSTI)

Abstract Nitrate removal in submerged membrane bioreactors (MBRs) is limited as intensive aeration (for maintaining adequate dissolved oxygen levels and for membrane scouring) deters the formation of anoxic zones essential for biological denitrification. The present study employs baffled membrane bioreactor (BMBR) to overcome this constraint. Treatment of nitrate rich water (synthetic and real groundwater) was investigated. Sludge separation was achieved using ceramic membrane filters prepared from waste sugarcane bagasse ash. A complex external carbon source (leachate from anaerobic digestion of food waste) was used to maintain an appropriate C/N ratio. Over 90% COD and 95% NO3–N reduction was obtained. The bagasse ash filters produced a clear permeate, free of suspended solids. Sludge aggregates were observed in the reactor and were linked to the high extracellular polymeric substances (EPS) content. Lower sludge volume index (40 mL/g compared to 150 mL/g for seed sludge), higher settling velocity (47 m/h compared to 10 m/h for seed sludge) and sludge aggregates (0.7 mm aggregates compared to <0.2 mm for seed sludge) was observed. The results demonstrate the potential of waste-derived materials viz. food waste leachate and bagasse ash filters in water treatment.

Subhankar Basu; Saurabh K. Singh; Prahlad K. Tewari; Vidya S. Batra; Malini Balakrishnan

2014-01-01T23:59:59.000Z

325

LITERATURE SURVEY FOR GROUNDWATER TREATMENT OPTIONS FOR NITRATE IODINE-129 AND URANIUM 200-ZP-1 OPERABLE UNIT HANFORD SITE  

SciTech Connect

This literature review presents treatment options for nitrate, iodine-129, and uranium, which are present in groundwater at the 200-ZP-I Groundwater Operable Unit (OU) within the 200 West Area of the Hanford Site. The objective of this review is to determine available methods to treat or sequester these contaminants in place (i.e., in situ) or to pump-and-treat the groundwater aboveground (i.e., ex situ). This review has been conducted with emphasis on commercially available or field-tested technologies, but theoretical studies have, in some cases, been considered when no published field data exist. The initial scope of this literature review included only nitrate and iodine-I 29, but it was later expanded to include uranium. The focus of the literature review was weighted toward researching methods for treatment of nitrate and iodine-129 over uranium because of the relatively greater impact of those compounds identified at the 200-ZP-I OU.

BYRNES ME

2008-06-05T23:59:59.000Z

326

Reuse, Treatment, and Discharge of the Concentrate of Pressure-Driven Membrane Processes  

Science Journals Connector (OSTI)

The concentration factor (CF, the ratio of the concentration of a component i in concentrate and feed) can be calculated from the mass balance for component i: and thus where Q is the volumetric flow (L/h) and C is the concentra tion (mg/L); the subscripts r, f, p, and i refer to the concentrate (or retentate), the feed, the permeate, and the component used, respectively. ... In 48% of the installations, the concentrate was discharged in surface water; in 23%, the concentrate was treated in a wastewater treatment plant; in 13%, the concentrate was reused on the land for, for example, irrigation; in 10%, the concentrate was discharged to groundwater by deep injection; and in the remaining 6%, the concentrate was discharged to evaporation ponds. ... Advantages of using vapor compression distn. in combination with reverse osmosis plants for treating reject brine for inland locations as compared to lined evapn. ...

Bart Van der Bruggen; Liesbeth Lejon; Carlo Vandecasteele

2003-08-02T23:59:59.000Z

327

ARM - Measurement - Trace gas concentration  

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

govMeasurementsTrace gas concentration govMeasurementsTrace gas concentration ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Trace gas concentration The amount per unit volume of trace gases other than carbon dioxide, ozone and water vapor, typically measured in conjunction with in situ aerosol measurements, e.g. carbon monoxide, nitrogen oxides, sulfur dioxide. Categories Atmospheric Carbon, Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments CO : Carbon Monoxide Mixing Ratio System

328

Energy 101: Concentrating Solar Power  

SciTech Connect

From towers to dishes to linear mirrors to troughs, concentrating solar power (CSP) technologies reflect and collect solar heat to generate electricity. A single CSP plant can generate enough power for about 90,000 homes. This video explains what CSP is, how it works, and how systems like parabolic troughs produce renewable power. For more information on the Office of Energy Efficiency and Renewable Energy's CSP research, see the Solar Energy Technology Program's Concentrating Solar Power Web page at http://www1.eere.energy.gov/solar/csp_program.html.

None

2010-01-01T23:59:59.000Z

329

Energy 101: Concentrating Solar Power  

ScienceCinema (OSTI)

From towers to dishes to linear mirrors to troughs, concentrating solar power (CSP) technologies reflect and collect solar heat to generate electricity. A single CSP plant can generate enough power for about 90,000 homes. This video explains what CSP is, how it works, and how systems like parabolic troughs produce renewable power. For more information on the Office of Energy Efficiency and Renewable Energy's CSP research, see the Solar Energy Technology Program's Concentrating Solar Power Web page at http://www1.eere.energy.gov/solar/csp_program.html.

None

2013-05-29T23:59:59.000Z

330

Emission Controls Versus Meteorological Conditions in Determining Aerosol Concentrations in Beijing during the 2008 Olympic Games  

SciTech Connect

A series of emission control measures were undertaken in Beijing and the adjacent provinces in China during the 2008 Beijing Olympic Games on August 8th-24th, 2008. This provides a unique opportunity for investigating the effectiveness of emission controls on air pollution in Beijing. We conducted a series of numerical experiments over East Asia for the period of July to September 2008 using a coupled meteorology-chemistry model (WRF-Chem). Model can generally reproduce the observed variation of aerosol concentrations. Consistent with observations, modeled concentrations of aerosol species (sulfate, nitrate, ammonium, black carbon, organic carbon, total particulate matter) in Beijing were decreased by 30-50% during the Olympic period compared to the other periods in July and August in 2008 and the same period in 2007. Model results indicate that emission controls were effective in reducing the aerosol concentrations by comparing simulations with and without emission controls. However, our analysis suggests that meteorological conditions (e.g., wind direction and precipitation) are at least as important as emission controls in producing the low aerosol concentrations appearing during the Olympic period. Transport from the regions surrounding Beijing determines the temporal variation of aerosol concentrations in Beijing. Based on the budget analysis, we suggest that emission control strategy should focus on the regional scale instead of the local scale to improve the air quality over Beijing.

Gao, Yi; Liu, Xiaohong; Zhao, Chun; Zhang, Meigen

2011-12-12T23:59:59.000Z

331

Al-PILLARED MONTMORILLONITE OBTAINED IN CONCENTRATED MEDIA. EFFECT OF THE ANIONS (NITRATE, SULFATE AND CHLORIDE) ASSOCIATED WITH THE Al SPECIES  

Science Journals Connector (OSTI)

...Orleans, France 2 CRT Plasma-Laser, Rue dIssoudun...were obtained at 94 MHz on a BRUKER spectrometer...min1 in an argon atmosphere. RESULTS Characterization...thankful to the CRT Plasma Laser (Orleans...spectroscopy at 104.2 MHz. Journal of Magnetic...cnrs-orleans.fr CRT Plasma-Laser France 626...

Amina Aouad; Alain Pineau; Denise Tchoubar; Faïza Bergaya

332

Al-PILLARED MONTMORILLONITE OBTAINED IN CONCENTRATED MEDIA. EFFECT OF THE ANIONS (NITRATE, SULFATE AND CHLORIDE) ASSOCIATED WITH THE Al SPECIES  

Science Journals Connector (OSTI)

...France 2 CRT Plasma-Laser...different large aqueous aluminum...BET surface area is 29 m2...obtained at 94 MHz on a BRUKER...an argon atmosphere. RESULTS...organized and larger layer stackings...surface area (S BET...to the CRT Plasma Laser (Orleans...at 104.2 MHz. Journal...2006) Large aqueous aluminium...Surface Area and Porosity...

Amina Aouad; Alain Pineau; Denise Tchoubar; Faïza Bergaya

333

Water Structure at the Air-Aqueous Interface of Divalent Cation and Nitrate Solutions Man Xu, Rick Spinney, and Heather C. Allen*  

E-Print Network (OSTI)

Water Structure at the Air-Aqueous Interface of Divalent Cation and Nitrate Solutions Man Xu, Rick, Columbus, Ohio 43210 ReceiVed: July 24, 2008; ReVised Manuscript ReceiVed: December 4, 2008 The water surface structure of aqueous magnesium, calcium, and strontium nitrate solutions with six to seven water

334

Positron Scanner for Locating Brain Tumors  

DOE R&D Accomplishments (OSTI)

A system is described that makes use of positron emitting isotopes for locating brain tumors. This system inherently provides more information about the distribution of radioactivity in the head in less time than existing scanners which use one or two detectors. A stationary circular array of 32 scintillation detectors scans a horizontal layer of the head from many directions simultaneously. The data, consisting of the number of counts in all possible coincidence pairs, are coded and stored in the memory of a Two-Dimensional Pulse-Height Analyzer. A unique method of displaying and interpreting the data is described that enables rapid approximate analysis of complex source distribution patterns. (auth)

Rankowitz, S.; Robertson, J. S.; Higinbotham, W. A.; Rosenblum, M. J.

1962-03-00T23:59:59.000Z

335

ACCELERATED IMPROVEMENT A CONCENTRATED APPROACH  

E-Print Network (OSTI)

ACCELERATED IMPROVEMENT A CONCENTRATED APPROACH FOR CONTINUOUS IMPROVEMENT #12;Accelerated.quality.wisc.edu O F F I C E O F Q U A L I T Y I M P R O V E M E N T Accelerated Improvement This guide to improving resources. You will find helpful information needed to conduct an Accelerated Improvement project

Shapiro, Vadim

336

Physics and Astronomy Geophysics Concentration  

E-Print Network (OSTI)

Physics and Astronomy Geophysics Concentration Strongly recommended courses Credits Term Dept. to Geophysics 3 PHY 3230 Thermal Physics 3 CHE 1101 Introductory Chemistry - I 3 CHE 1110 Introductory Chemistry Laboratory - I 1 GLY 1101 Intro. to Physical Geology 4 GLY 2250 Evolution of the Earth 4 GLY 4705 Adv

Thaxton, Christopher S.

337

Alternative Fuels Data Center: Hydrogen Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Hydrogen Hydrogen Printable Version Share this resource Send a link to Alternative Fuels Data Center: Hydrogen Fueling Station Locations to someone by E-mail Share Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Hydrogen Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Hydrogen Fueling Station Locations on AddThis.com... More in this section... Hydrogen Basics Benefits & Considerations Stations Locations

338

Alternative Fuels Data Center: Propane Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Propane Propane Printable Version Share this resource Send a link to Alternative Fuels Data Center: Propane Fueling Station Locations to someone by E-mail Share Alternative Fuels Data Center: Propane Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Propane Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Propane Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Propane Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Propane Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Propane Fueling Station Locations on AddThis.com... More in this section... Propane Basics Benefits & Considerations Stations Locations Infrastructure Development

339

Major DOE Biofuels Project Locations | Department of Energy  

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

Major DOE Biofuels Project Locations More Documents & Publications Major DOE Biofuels Project Locations Slide 1 The Current State of Technology for Cellulosic Ethanol...

340

Alternative Fuels Data Center: Alternative Fueling Station Locator  

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

Locate Stations Printable Version Share this resource Send a link to Alternative Fuels Data Center: Alternative Fueling Station Locator to someone by E-mail Share Alternative Fuels...

Note: This page contains sample records for the topic "location concentration nitrate" 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

PARSII - New Reports and Reports With New Reporting Folder Location...  

Energy Savers (EERE)

- New Reports and Reports With New Reporting Folder Location More Documents & Publications PARSII - New Reports and Reports With New Reporting Folder Location Slide 1 Slide 1...

342

Alternative Fuels Data Center: Electric Vehicle Charging Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Electric Vehicle Electric Vehicle Charging Station Locations to someone by E-mail Share Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Facebook Tweet about Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Twitter Bookmark Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Google Bookmark Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Delicious Rank Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on Digg Find More places to share Alternative Fuels Data Center: Electric Vehicle Charging Station Locations on AddThis.com... More in this section... Electricity Basics Benefits & Considerations Stations Locations Infrastructure Development

343

Tracking the Sources of Nitrate in Groundwater Using Coupled Nitrogen and Boron Isotopes:? A Synthesis  

Science Journals Connector (OSTI)

Studied were carried out in three different hydrogeological contexts in Francefractured bedrock (Arguenon, Brittany), deep alluvial groundwater (Pia, Pyrenees), and subsurface alluvial groundwater (Ile du Chambon, Allier)in order to determine whether, regardless of the hydrogeological context, the combined use of nitrogen and boron would allow both the identification of pollution sources and the semiquantification of their respective contributions to the observed NO3 levels in groundwater. ... For isotope measurements, the groundwater samples were collected in either 10-L jerry cans (for nitrogen isotopes determination) or 1-L bottles (for boron isotopes). ... The stable isotopes of the conservative element boron, 11B and 10B, have been employed as co-migrating isotopic tracers to trace potential sources of nitrate obsd. in groundwater pumped from a large capacity 0.167 m3/s irrigation well in the Avra Valley of southeastern Arizona. ...

David Widory; Emmanuelle Petelet-Giraud; Philippe Négrel; Bernard Ladouche

2004-12-04T23:59:59.000Z

344

Microstructural Characterization of Colloid-Derived Bimetallic Pd-Cu Nanocatalysts Supported on -Al2O3 for Nitrate Reduction  

E-Print Network (OSTI)

and Center of Advanced Materials for the Purification of Water with Systems, University of Illinois at Urbana of Advanced Materials for Purification of Water with Systems, University of Illinois at Urbana to develop heterogeneous catalysts as a viable water purification method. The rates of nitrate and nitrite

Frenkel, Anatoly

345

Draft Genome Sequence for Microbacterium laevaniformans Strain OR221, a Bacterium Tolerant to Metals, Nitrate, and Low pH  

SciTech Connect

Microbacterium laevaniformans strain OR221 was isolated from subsurface sediments obtained from the Field Research Center (FRC) in Oak Ridge, TN. It was characterized as a bacterium tolerant to heavy metals such as uranium, nickel, cobalt, cadmium, as well as nitrate and low pH. We present its draft genome sequence.

Brown, Steven D [ORNL; Palumbo, Anthony Vito [ORNL; Panikov, Nikolai [ORNL; Ariyawansa, Thilini [Northeastern University; Klingeman, Dawn Marie [ORNL; Johnson, Courtney M [ORNL; Land, Miriam L [ORNL; Utturkar, Sagar M [ORNL; Epstein, Slava [Northeastern University

2012-01-01T23:59:59.000Z

346

Spatial and diurnal variability in reactive nitrogen oxide chemistry as reflected in the isotopic composition of atmospheric nitrate  

E-Print Network (OSTI)

exchange between gas-phase precursors and variability in reactive nitrogen sources. These findings product of NOx in the atmosphere. Due to its exceptionally high solubility in water, nitrate is rapidly deSpatial and diurnal variability in reactive nitrogen oxide chemistry as reflected in the isotopic

347

Size effect of hematite and corundum inclusions on the efflorescence relative humidities of aqueous ammonium nitrate particles  

E-Print Network (OSTI)

and Structure: Aerosols and particles (0345, 4801); 0345 Atmospheric Composition and Structure: Pollution ammonium nitrate particles Jeong-Ho Han Department of Environmental Chemistry, Atmospheric Science Division by the saturation of the aqueous solution with respect to the solid. INDEX TERMS: 0305 Atmospheric Composition

348

Design and Study of Portable Solar Dish Concentrator  

E-Print Network (OSTI)

Abstract ? The fixed focus concentrator are successfully used for medium temperature application in different parts of the world. There are few procedures reported in literatures for test and evaluating solar concentrator performance which are base on sensible heating of few working fluids. One of limitation of these procedures is requirement of precise operation condition during test. In this research the design and fabrication of solar dish concentration with diameters (1.6) meters for water heating application and solar steam was achieved.The dish was fabricated using metal of galvanized steel, and its interior surface is covered by a reflecting layer with reflectivity up to (76 %), and equipped with a receiver (boiler) located in the focal position. The dish equipped with tracking system and measurement of the temperature and solar power.Water temperature increased up to 80 C o, and the system efficiency increased by30 % at midnoon time.

Fareed M. Mohamed; Auatf. S. Jassim; Yaseen H. Mahmood; Mohamad A. K. Ahmed

349

Globally Averaged Atmospheric CFC-11 Concentrations: Monthly and Annual  

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

Chlorofluorocarbons » Chlorofluorocarbons » Atmospheric CFC-11 Concentrations Globally Averaged Atmospheric CFC-11 Concentrations: Monthly and Annual Data for the Period 1975-1992 DOI: 10.3334/CDIAC/atg.db1010 data Data (DB1010) Investigator M. A. K. Khalil and R. A. Rasmussen Description This data set presents globally averaged atmospheric concentrations of chlorofluorocarbon 11, known also as CFC-11 or F-11 (chemical name: trichlorofluoromethane; formula: CCl3F). The monthly global average data are derived from flask air samples collected at eight sites in six locations over the period August 1980-July 1992. The sites are Barrow (Alaska), Cape Meares (Oregon), Cape Kumukahi and Mauna Loa (Hawaii), Cape Matatula (American Samoa), Cape Grim (Tasmania), Palmer Station, and the

350

Safe conditions for contacting nitric acid or nitrates with tri-n-butyl phosphate (TBP)  

SciTech Connect

In response to a request from DOE-SR, the current state of knowledge of the reactions between TBP and aqueous nitrate solutions is critically reviewed, and recommendations are made for the safe operation of SRS separations equipment in which this combination of chemicals may be present. The existing limits for evaporation are validated. Guidelines are presented for cases in which general limits do not apply. The rate of reaction between nitric acid and TBP appears to be controlled by the rate of TBP hydrolysis. The hydrolysis reaction produces dibutyl phosphate and n-butanol. The hydrolysis rate is a strong function of temperature, and becomes very fast at temperatures in the range 130{degrees} to 150{degrees}C. The resulting n-butanol is volatile at high temperatures, boiling at 117.5{degrees}C, but is also subject to exothermic oxidation by nitric acid or nitrates. If oxidation occurs before the n-butanol evaporates, the heat of oxidation may exceed local cooling by convection. The resulting heating will further accelerate the reaction, leading to an energetic runaway and possibly (in confined systems) an explosion. Extensive experiments and practice have shown that in a well-mixed and well-vented aqueous system such as an evaporator, at moderate acidities and temperatures below 130{degrees}C, the heat of reaction is adequately removed by vaporization of steam. In general, the heating will be so slow that natural processes provide adequate cooling at temperatures below 80{degrees}C. Above this temperature, care should be taken to ensure that adequate cooling is available for the amount of TBP that may be present. Experiments suggest that in well-ventilated systems n-butanol evaporation and convective cooling are sufficient to control the reaction at temperatures up to 120{degrees}C.

Hyder, M.L

1994-01-01T23:59:59.000Z

351

Thermal characterisation of an innovative quaternary molten nitrate mixture for energy storage in CSP plants  

Science Journals Connector (OSTI)

Abstract Enhancements to energy storage systems developed for solar thermoelectric technologies can yield considerable increases in efficiency for this type of renewable energy. Important improvements include the design of innovative storage fluids, such as molten salts possessing low melting points and high thermal stabilities. This research examines the design of an innovative quaternary molten nitrate mixture, with the goal of improving the solar salt used currently as an energy storage fluid in CSP plants. This quaternary salt, which contains different weight percentages of NaNO3, KNO3, LiNO3 and Ca(NO3)2, exhibits better physical and chemical properties than the binary solar salt (60% NaNO3+40% KNO3) currently used. The melting points, heat capacities and thermal stability of the quaternary mixtures were studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). In addition to DSC and TGA tests, viscosity and electrical conductivity measurements were carried out for the quaternary mixtures at different temperatures. The new salt was designed by taking into consideration the risk of solid species formation at high temperatures when calcium nitrate is present (which requires that the wt% does not exceed 20%) and the costs of LiNO3. These boundaries set the maximum wt% of LiNO3 to values below 15%. Finally it was determined that the proposed quaternary mixture, when used as a heat transfer fluid (HTF) in parabolic trough solar power plants, is able to expand plants? operating range to temperatures between 132 and 580 °C.

A.G. Fernández; S. Ushak; H. Galleguillos; F.J. Pérez

2015-01-01T23:59:59.000Z

352

Cylindrical acoustic levitator/concentrator  

DOE Patents (OSTI)

A low-power, inexpensive acoustic apparatus for levitation and/or concentration of aerosols and small liquid/solid samples having particulates up to several millimeters in diameter in air or other fluids is described. It is constructed from a commercially available, hollow cylindrical piezoelectric crystal which has been modified to tune the resonance frequency of the breathing mode resonance of the crystal to that of the interior cavity of the cylinder. When the resonance frequency of the interior cylindrical cavity is matched to the breathing mode resonance of the cylindrical piezoelectric transducer, the acoustic efficiency for establishing a standing wave pattern in the cavity is high. The cylinder does not require accurate alignment of a resonant cavity. Water droplets having diameters greater than 1 mm have been levitated against the force of gravity using; less than 1 W of input electrical power. Concentration of aerosol particles in air is also demonstrated.

Kaduchak, Gregory (Los Alamos, NM); Sinha, Dipen N. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

353

Development of concentrator solar cells  

SciTech Connect

A limited pilot production run on PESC silicon solar cells for use at high concentrations (200 to 400 suns) is summarized. The front contact design of the cells was modified for operation without prismatic covers. The original objective of the contract was to systematically complete a process consolidation phase, in which all the, process improvements developed during the contract would be combined in a pilot production run. This pilot run was going to provide, a basis for estimating cell costs when produced at high throughput. Because of DOE funding limitations, the Photovoltaic Concentrator Initiative is on hold, and Applied Solar`s contract was operated at a low level of effort for most of 1993. The results obtained from the reduced scope pilot run showed the effects of discontinuous process optimization and characterization. However, the run provided valuable insight into the technical areas that can be optimized to achieve the original goals of the contract.

Not Available

1994-08-01T23:59:59.000Z

354

Concentration polarization in gas permeation  

SciTech Connect

It was verified that the selectivity of very thin (1 {mu}m thick) PDMS (polydimethylsiloxane) composite membranes for gaseous binary mixtures, like nitrogen and a hydrocarbon (HC), is as much as five times smaller than for the same mixture using a thick membrane (15 {mu}m-thick). This phenomenon is due to the build-up of the less permeable gas on the retentate side over the membrane and is known as the concentration polarization effect. In this paper we present a model for the gas concentration polarization effect based in the film theory and compare with the experimental results for the nitrogen-pentane separation using a PDMS membrane. 8 refs., 6 figs.

Mendes, A.M.M. [Univ. of Porto (Portugal); Alpers, A.; Peinemann, K.V.; Ohlrogge, K. [GKSS-Research Centre, Geesthacht (Germany)

1996-12-31T23:59:59.000Z

355

Title, Location, Document Number Estimated Cost Description  

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

Moody to Lev, SUBJECT: NEPA 2012 APS for DOE-SRS, Dated: JAN 25 2012 Moody to Lev, SUBJECT: NEPA 2012 APS for DOE-SRS, Dated: JAN 25 2012 Title, Location, Document Number Estimated Cost Description EA Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain FONSI: uncertain EA Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain FONSI: uncertain Total Estimated Cost $65,000 Annual NEPA Planning Summary NEPA Reviews of Proposals to Implement Enterprise SRS Initiatives unknown The Savannah River Site Strategic Plan for 2011 - 2015 describes 12 initiatives that Enterprise SRS will pursue by applying SRS's management core competencies in nuclear materials. Implementation of new missions resulting from this effort will likely require NEPA review. However, until firm proposals are developed

356

Photovoltaic concentrator module improvements study  

SciTech Connect

This report presents results of a project to design and fabricate an improved photovoltaic concentrator module. Using previous work as a baseline, this study conducted analyses and testing to select major module components and design features. The lens parquet and concentrator solar cell were selected from the highest performing, available components. A single 185X point-focus module was fabricated by the project team and tested at Sandia. Major module characteristics include a 6 by 4 compression-molded acrylic lens parquet (0.737 m{sup 2} area), twenty-four 0.2 ohms-cm, FZ, p-Si solar cells (1.56 cm{sup 2} area) soldered to ceramic substrates and copper heat spreaders, and an aluminized steel housing with corrugated bottom. This project marked the first attempt to use prismatic covers on solar cells in a high-concentration, point-focus application. Cells with 15 percent metallization were obtained, but problems with the fabrication and placement of prismatic covers on these cells lead to the decision not to use covers in the prototype module. Cell assembly fabrication, module fabrication, and module optical design activities are presented here. Test results are also presented for bare cells, cell assemblies, and module. At operating conditions of 981 watts/m{sup 2} DNI and an estimated cell temperature of 65{degrees}C, the module demonstrated an efficiency of 13.9 percent prior to stressed environmental exposure. 12 refs., 56 figs., 7 tabs.

Levy, S.L.; Kerschen, K.A. (Black and Veatch, Kansas City, MO (United States)); Hutchison, G. (Solar Kinetics, Inc., Dallas, TX (United States)); Nowlan, M.J. (Spire Corp., Bedford, MA (United States))

1991-08-01T23:59:59.000Z

357

Instrument Grant Location CCSR 21XX Location CCSR 12XX Location SIM-1 BD FACSCalibur flow cytometer-2 laser/4 color Grant S-348A none none none  

E-Print Network (OSTI)

Instrument Grant Location CCSR 21XX Location CCSR 12XX Location SIM-1 BD FACSCalibur flow cytometer-2 laser/4 color Grant S-348A none none none BD FACScan flow cytometer 1 laser/3 color none CCSR 2121 none none Beckman Spectrophotometer(3) Grant S-348 CCSR 2122 CCSR 1210 none Chemilluminescence and Gel

Kay, Mark A.

358

Locating a Recycling Center: The General Density Case Jannett Highfill  

E-Print Network (OSTI)

Locating a Recycling Center: The General Density Case Jannett Highfill Department of Economics) 677-3374. #12;2 Locating a Recycling Center: The General Density Case Abstract: The present paper considers a municipality that has a landfill (fixed in location) and plans to optimally locate a "recycling

Mou, Libin

359

Categorical Exclusion Determinations: Other Location | Department of Energy  

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

Other Location Other Location Categorical Exclusion Determinations: Other Location Location Categorical Exclusion Determinations issued for actions in other locations. DOCUMENTS AVAILABLE FOR DOWNLOAD September 28, 2011 CX-006938: Categorical Exclusion Determination Developing Lithium-Ion Cells for Electric Vehicle Batteries CX(s) Applied: B3.6 Date: 09/28/2011 Location(s): Daejeon, South Korea, Other Location Office(s): Energy Efficiency and Renewable Energy, Savannah River Operations Office September 28, 2011 CX-006922: Categorical Exclusion Determination Amerigon Waste Heat Recovery Program for Passenger Vehicles CX(s) Applied: A9, B3.6 Date: 09/28/2011 Location(s): Germany, California, Indiana, Michigan Office(s): Energy Efficiency and Renewable Energy, Savannah River Operations Office

360

Alternative Fuels Data Center: Biodiesel Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Station Locations to someone by E-mail Station Locations to someone by E-mail Share Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Biodiesel Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Biodiesel Fueling Station Locations on AddThis.com... More in this section... Biodiesel Basics Benefits & Considerations Stations Locations Infrastructure Development Vehicles Laws & Incentives Biodiesel Fueling Station Locations Find biodiesel (B20 and above) fueling stations near an address or ZIP code

Note: This page contains sample records for the topic "location concentration nitrate" 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

Location theory and the location of industry along an interstate highway  

E-Print Network (OSTI)

identified in theory will provide a basis for the "empirical" model or system of classification to be used in tabulating the response to the survey. Of particular interest is the theoretical development of the ms]or forces in plant location; i. e, , cost... identified in theory will provide a basis for the "empirical" model or system of classification to be used in tabulating the response to the survey. Of particular interest is the theoretical development of the ms]or forces in plant location; i. e, , cost...

Miller, James Patterson

2012-06-07T23:59:59.000Z

362

Experiential Component Approval Form Concentration in Nanotechnology  

E-Print Network (OSTI)

Experiential Component Approval Form Concentration in Nanotechnology Return completed form to ENG Plan to complete the experiential component as a requirement for the concentration in Nanotechnology to complete the experiential component for the Nanotechnology Concentration by: Research Experience in Lab

Goldberg, Bennett

363

A microfabricated dielectrophoretic micro-organism concentrator  

E-Print Network (OSTI)

This project focuses on the development of a micro-organism concentrator. Pathogen detection, particularly MEMS based detection, is often limited by sample concentration. The proposed concentrator will interface with a ...

Muller, Rikky, 1980-

2004-01-01T23:59:59.000Z

364

Atmospheric Mercury Concentrations Near Salmon Falls Creek Reservoir - Phase 1  

SciTech Connect

Elemental and reactive gaseous mercury (EGM/RGM) were measured in ambient air concentrations over a two-week period in July/August 2005 near Salmon Falls Creek Reservoir, a popular fishery located 50 km southwest of Twin Falls, Idaho. A fish consumption advisory for mercury was posted at the reservoir in 2002 by the Idaho Department of Health and Welfare. The air measurements were part of a multi-media (water, sediment, precipitation, air) study initiated by the Idaho Department of Environmental Quality and the U.S. Environmental Protection Agency (EPA) Region 10 to identify potential sources of mercury contamination to the reservoir. The sampling site is located about 150 km northeast of large gold mining operations in Nevada, which are known to emit large amounts of mercury to the atmosphere (est. 2,200 kg/y from EPA 2003 Toxic Release Inventory). The work was co-funded by the Idaho National Laboratory’s Community Assistance Program and has a secondary objective to better understand mercury inputs to the environment near the INL, which lies approximately 230 km to the northeast. Sampling results showed that both EGM and RGM concentrations were significantly elevated (~ 30 – 70%, P<0.05) compared to known regional background concentrations. Elevated short-term RGM concentrations (the primary form that deposits) were likely due to atmospheric oxidation of high EGM concentrations, which suggests that EGM loading from upwind sources could increase Hg deposition in the area. Back-trajectory analyses indicated that elevated EGM and RGM occurred when air parcels came out of north-central and northeastern Nevada. One EGM peak occurred when the air parcels came out of northwestern Utah. Background concentrations occurred when the air was from upwind locations in Idaho (both northwest and northeast). Based on 2003 EPA Toxic Release Inventory data, it is likely that most of the observed peaks were from Nevada gold mine sources. Emissions from known large natural mercury sources in that area cannot account for the observed EGM peaks due to their diffuse source geometry and the large (170 km) transport distance involved. The EGM peak originating from northwestern Utah air may be from three known mercury sources west of Salt Lake City (Kennecott, US Magnesium, Clean Harbors Aragonite) and/or the 1600 MW coal-fired Intermountain Power plant near Delta. However, the relative importance of these short-term peaks for long-term watershed mercury loading (critical factor affecting fish concentrations) is not known, and there is a need to better quantify the annual frequency and magnitude of these different inputs over a longer period of time.

M. L. Abbott

2005-10-01T23:59:59.000Z

365

Sandia National Laboratories: multiscale concentrated solar power  

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

concentrated solar power Solar Energy Research Institute for India and the United States Kick-Off On November 27, 2012, in Concentrating Solar Power, Energy, National Solar Thermal...

366

Sandia National Laboratories: Concentrating Solar Power  

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

Concentrating Solar Power Solar Energy On February 3, 2011, in Solar Programs Photovoltaics Concentrating Solar Power Sunshine to Petrol Solar Publications Recent Solar Highlights...

367

Arontis Solar Concentrator AB | Open Energy Information  

Open Energy Info (EERE)

Harnosand, Sweden Zip: SE-871 31 Product: Developer of a medium-concentrating, one axis sun tracking PV system that also produces hot water. References: Arontis Solar Concentrator...

368

Sandia National Laboratories: Concentrating Solar Power  

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

Concentrating Solar Power (CSP) On April 13, 2011, in CSP R&D at Sandia Testing Facilities Software & Tools Resources Contacts News Concentrating Solar Power ANNOUNCEMENT: Sandia's...

369

Infrasound source location An automated method to estimate the location of infrasound sources  

E-Print Network (OSTI)

Waterstaat Delft University of Technology (DUT) Department of Earth Observation and Space Systems Acoustic Meteorologisch Instituut (KNMI) and three additional arrays located in Germany and France. The estimated source for a spherical earth. Extensive filtering is applied to clean the data from as much noise and signals from local

Evers, Läslo G.

370

Location Based Security for Smart Grid Applications  

Science Journals Connector (OSTI)

Abstract Smart Grid (SG) promises efficient, sustainable, green and reliable electrical delivery by combining the existing electrical distribution network assets with modern information and communications technologies (ICT) in order to transfer information and energy in both directions. Introduction of these intelligent devices will help the grid monitor, protect, and automatically optimise the operation of interconnected elements, in addition to interaction between energy suppliers and consumers. However, this exposes the future grid to new security challenges and risks. In this paper, a framework for protecting Smart Grid applications using geographic location of the devices connected to it is proposed. With this framework, each device on the grid adds an extra layer of security. The proposed scheme is not application or device specific which means it can be implemented on any communication node on the grid. The scheme uses an algebraic code based cryptosystems known as GPT (Gabidulin -Paramonov-Trejtakov), which provides a very strong protection while utilising the smallest key size as compared to other cryptosystems based on algebraic codes. As with other code based cryptosystems, the proposed security framework protects grid information against cyber threats as well as against channel impairments in the form of error protection codes.

Eraj Khan; Bamidele Adebisi; Bahram Honary

2013-01-01T23:59:59.000Z

371

SAPLE: Sandia Advanced Personnel Locator Engine.  

SciTech Connect

We present the Sandia Advanced Personnel Locator Engine (SAPLE) web application, a directory search application for use by Sandia National Laboratories personnel. SAPLE's purpose is to return Sandia personnel 'results' as a function of user search queries, with its mission to make it easier and faster to find people at Sandia. To accomplish this, SAPLE breaks from more traditional directory application approaches by aiming to return the correct set of results while placing minimal constraints on the user's query. Two key features form the core of SAPLE: advanced search query interpretation and inexact string matching. SAPLE's query interpretation permits the user to perform compound queries when typing into a single search field; where able, SAPLE infers the type of field that the user intends to search on based on the value of the search term. SAPLE's inexact string matching feature yields a high-quality ranking of personnel search results even when there are no exact matches to the user's query. This paper explores these two key features, describing in detail the architecture and operation of SAPLE. Finally, an extensive analysis on logged search query data taken from an 11-week sample period is presented.

Procopio, Michael J.

2010-04-01T23:59:59.000Z

372

Homodyne impulse radar hidden object locator  

DOE Patents (OSTI)

An electromagnetic detector is designed to locate an object hidden behind a separator or a cavity within a solid object. The detector includes a PRF generator for generating 2 MHz pulses, a homodyne oscillator for generating a 2 kHz square wave, and for modulating the pulses from the PRF generator. A transmit antenna transmits the modulated pulses through the separator, and a receive antenna receives the signals reflected off the object. The receiver path of the detector includes a sample and hold circuit, an AC coupled amplifier which filters out DC bias level shifts in the sample and hold circuit, and a rectifier circuit connected to the homodyne oscillator and to the AC coupled amplifier, for synchronously rectifying the modulated pulses transmitted over the transmit antenna. The homodyne oscillator modulates the signal from the PRF generator with a continuous wave (CW) signal, and the AC coupled amplifier operates with a passband centered on that CW signal. The present detector can be used in several applications, including the detection of metallic and non-metallic objects, such as pipes, studs, joists, nails, rebars, conduits and electrical wiring, behind wood wall, ceiling, plywood, particle board, dense hardwood, masonry and cement structure. The detector is portable, light weight, simple to use, inexpensive, and has a low power emission which facilitates the compliance with Part 15 of the FCC rules.

McEwan, Thomas E. (Livermore, CA)

1996-01-01T23:59:59.000Z

373

SunShot Initiative: Concentrating Solar Power  

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

Concentrating Solar Power to Concentrating Solar Power to someone by E-mail Share SunShot Initiative: Concentrating Solar Power on Facebook Tweet about SunShot Initiative: Concentrating Solar Power on Twitter Bookmark SunShot Initiative: Concentrating Solar Power on Google Bookmark SunShot Initiative: Concentrating Solar Power on Delicious Rank SunShot Initiative: Concentrating Solar Power on Digg Find More places to share SunShot Initiative: Concentrating Solar Power on AddThis.com... Concentrating Solar Power Systems Components Competitive Awards Staff Photovoltaics Systems Integration Balance of Systems Concentrating Solar Power SunShot CSP Team Learn more about the SunShot concentrating solar power program staff by visiting the team's profile pages. Argonne National Laboratory Argonne National Laboratory

374

Alternative Fuels Data Center: Ethanol Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Fueling Fueling Station Locations to someone by E-mail Share Alternative Fuels Data Center: Ethanol Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Ethanol Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Ethanol Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Ethanol Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Ethanol Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Ethanol Fueling Station Locations on AddThis.com... More in this section... Ethanol Basics Benefits & Considerations Stations Locations Infrastructure Development Vehicles Laws & Incentives Ethanol Fueling Station Locations Find ethanol (E85) fueling stations near an address or ZIP code or along a

375

Categorical Exclusion Determinations: Other Location | Department of Energy  

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

Other Location Other Location Categorical Exclusion Determinations: Other Location Location Categorical Exclusion Determinations issued for actions in other locations. DOCUMENTS AVAILABLE FOR DOWNLOAD September 24, 2013 CX-010914: Categorical Exclusion Determination Pilot Testing of a Highly Efficient Pre-Combustion Sorbent-Based Carbon Capture System (SUMMARY Categorical Exclusion (CX)) CX(s) Applied: A9, A11, B3.6 Date: 09/24/2013 Location(s): Multiple States, China, Canada Offices(s): National Energy Technology Laboratory August 21, 2013 CX-010781: Categorical Exclusion Determination A Geomechanical Model for Gas Shales Based on Integration of Stress CX(s) Applied: A9, A11, B3.6 Date: 08/21/2013 Location(s): Pennsylvania Offices(s): National Energy Technology Laboratory August 16, 2013

376

Alternative Fueling Station Locator - Mobile | Open Energy Information  

Open Energy Info (EERE)

Fueling Station Locator - Mobile Fueling Station Locator - Mobile Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Alternative Fueling Station Locator - Mobile Agency/Company /Organization: United States Department of Energy Partner: National Renewable Energy Laboratory Sector: Energy Focus Area: Transportation Phase: Evaluate Options, Prepare a Plan Resource Type: Online calculator User Interface: Mobile Device Website: www.afdc.energy.gov/afdc/locator/m/stations/ Web Application Link: www.afdc.energy.gov/afdc/locator/m/stations/ Cost: Free References: National Renewable Energy Laboratory Advanced Vehicles and Fuels Research: Data and Resources[1] Logo: Alternative Fueling Station Locator - Mobile Find fueling stations for your alternative fuel vehicle on-the-go with the

377

Nitrate regulation of Fe reduction and transport by Fe-limited ...  

Science Journals Connector (OSTI)

ganic Fe concentration was estimated for illuminated media. (Sunda and Huntsman 1995) ...... in this regard (Raven and Smith 1976). Cells that metabolize. NO3.

2000-06-05T23:59:59.000Z

378

Concentrating Solar Power: Technology Overview  

SciTech Connect

Concentrating Solar Power (CSP) has the potential to contribute significantly to the generation of electricity by renewable energy resources in the U.S.. Thermal storage can extend the duty cycle of CSP beyond daytime hours to early evening where the value of electricity is often the highest. The potential solar resource for the southwest U.S. is identified, along with the need to add power lines to bring the power to consumers. CSP plants in the U.S. and abroad are described. The CSP cost of electricity at the busbar is discussed. With current incentives, CSP is approaching competiveness with conventional gas-fired systems during peak-demand hours when the price of electricity is the highest. It is projected that a mature CSP industry of over 4 GWe will be able to reduce the energy cost by about 50%, and that U.S. capacity could be 120 GW by 2050.

Mehos, M.

2008-01-01T23:59:59.000Z

379

The Rheology of Concentrated Suspensions  

SciTech Connect

Research program on the rheological properties of flowing suspensions. The primary purpose of the research supported by this grant was to study the flow characteristics of concentrated suspensions of non-colloidal solid particles and thereby construct a comprehensive and robust theoretical framework for modeling such systems quantitatively. At first glance, this seemed like a modest goal, not difficult to achieve, given that such suspensions were viewed simply as Newtonian fluids with an effective viscosity equal to the product of the viscosity of the suspending fluid times a function of the particle volume fraction. But thanks to the research findings of the Principal Investigator and of his Associates, made possible by the steady and continuous support which the PI received from the DOE Office of Basic Energy Sciences, the subject is now seen to be more complicated and therefore much more interesting in that concentrated suspensions have been shown to exhibit fascinating and unique rheological properties of their own that have no counterpart in flowing Newtonian or even non-Newtonian (polymeric) fluids. In fact, it is generally acknowledged that, as the result of these investigations for which the PI received the 2001 National Medal of Science, our understanding of how suspensions behave under flow is far more detailed and comprehensive than was the case even as recently as a decade ago. Thus, given that the flow of suspensions plays a crucial role in many diverse physical processes, our work has had a major and lasting impact in a subject having both fundamental as well as practical importance.

Andreas Acrivos

2004-09-07T23:59:59.000Z

380

Locations of Smart Grid Demonstration and Large-Scale Energy...  

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

Locations of Smart Grid Demonstration and Large-Scale Energy Storage Projects Locations of Smart Grid Demonstration and Large-Scale Energy Storage Projects Map of the United States...

Note: This page contains sample records for the topic "location concentration nitrate" 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

Property:News/PrimaryLocation | Open Energy Information  

Open Energy Info (EERE)

PrimaryLocation Jump to: navigation, search This is a property of type Page. Retrieved from "http:en.openei.orgwindex.php?titleProperty:NewsPrimaryLocation&oldid285888"...

382

File:VallesLocationMap.pdf | Open Energy Information  

Open Energy Info (EERE)

VallesLocationMap.pdf Jump to: navigation, search File File history File usage Metadata File:VallesLocationMap.pdf Size of this preview: 800 479 pixels. Full resolution (934...

383

On the Anonymity of Home/Work Location Pairs  

E-Print Network (OSTI)

On the Anonymity of Home/Work Location Pairs Philippe Golle and Kurt Partridge Palo Alto Research population is 1, 21 and 34,980, for locations known at the granularity of a census block, census track

Golle, Philippe

384

A Privacy Conscious Bluetooth Infrastructure for Location Aware Computing  

E-Print Network (OSTI)

We present a low cost and easily deployed infrastructure for location aware computing that is built using standard Bluetooth® technologies and personal computers. Mobile devices are able to determine their location to ...

Huang, Albert

385

Energy Department Announces Student Teams, New Location for Solar...  

Energy Savers (EERE)

New Location for Solar Decathlon 2013 Energy Department Announces Student Teams, New Location for Solar Decathlon 2013 January 26, 2012 - 10:56am Addthis WASHINGTON, DC - At an...

386

Relative Location of Seismic Events Using Surface Waves  

Science Journals Connector (OSTI)

......The BOXCAR explosion at the Nevada Test Site was located with surface waves...activity in the Pahute Mesa area, Nevada Test Site, December 8, 1968-June 30...The BOXCAR explosion at the Nevada Test Site was located with surfacewavesusingboth......

David von Seggern

1972-04-01T23:59:59.000Z

387

Simulation of detonation of ammonium nitrate fuel oil mixture confined by aluminum: edge angles for DSD  

SciTech Connect

Non-ideal high explosives are typically porous, low-density materials with a low detonation velocity (3--5 km/s) and long detonation reaction zone ({approx} cms). As a result, the interaction of a non-ideal high explosive with an inert confiner can be markedly different than for a conventional high explosive. Issues arise, for example, with light stiff confiners where the confiner can drive the high explosive (HE) through a Prandtl-Meyer fan at the HE/confiner interface rather than the HE driving the confiner. For a non-ideal high explosive confined by a high sound speed inert such that the detonation velocity is lower than the inert sound speed, the flow is subsonic and thus shockless in the confiner. In such cases, the standard detonation shock dynamics methodology, which requires a positive edge-angle be specified at the HE/confiner interface in order that the detonation shape be divergent, cannot be directly utilized. In order to study how detonation shock dynamics can be utilized in such cases, numerical simulations of the detonation of ammonium nitrate-fuel oil (ANFO) confined by aluminum 6061 are conducted.

Short, Mark [Los Alamos National Laboratory; Quirk, James J [Los Alamos National Laboratory; Kiyanda, Charles B [Los Alamos National Laboratory; Jackson, Scott I [Los Alamos National Laboratory; Briggs, Matthew E [Los Alamos National Laboratory; Shinas, Micheal A [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

388

Combined uranous nitrate production consisting of undivided electrolytic cell and divided electrolytic cell (Electrolysis ? Electrolytic cell)  

SciTech Connect

The electrochemical reduction of uranyl nitrate is a green, mild way to make uranous ions. Undivided electrolyzers whose maintenance is less but their conversion ratio and current efficiency are low, have been chosen. However, at the beginning of undivided electrolysis, high current efficiency can also be maintained. Divided electrolyzers' conversion ratio and current efficiency is much higher because the re-oxidation of uranous on anode is avoided, but their maintenance costs are more, because in radioactive environment the membrane has to be changed after several operations. In this paper, a combined method of uranous production is proposed which consists of 2 stages: undivided electrolysis (early stage) and divided electrolysis (late stage) to benefit from the advantages of both electrolysis modes. The performance of the combined method was tested. The results show that in combined mode, after 200 min long electrolysis (80 min undivided electrolysis and 120 min divided electrolysis), U(IV) yield can achieve 92.3% (500 ml feed, U 199 g/l, 72 cm{sup 2} cathode, 120 mA/cm{sup 2}). Compared with divided mode, about 1/3 working time in divided electrolyzer is reduced to achieve the same U(IV) yield. If 120 min long undivided electrolysis was taken, more than 1/2 working time can be reduced in divided electrolyzer, which means that about half of the maintenance cost can also be reduced. (authors)

Yuan, Zhongwei; Yan, Taihong; Zheng, Weifang; Li, Xiaodong; Yang, Hui; Xian, Liang [China Institute of Atomic Energy, P.O.Box 275-26, Beijing 102413 (China)

2013-07-01T23:59:59.000Z

389

Staining of in vivo subsurface degradation in dental composites with silver nitrate  

SciTech Connect

A previously reported technique for staining areas of degradation in dental composite restorations was evaluated in 51 removed restorations. The staining reagent was silver nitrate, which penetrated the degraded subsurface as ionic silver and was subsequently developed into colored deposits of metallic silver. Several artefacts were recognized that resulted in an apparent image of subsurface stain. Most importantly, the presence of a layer of adsorbed silver on the edge of the specimen exaggerated the extent of staining. In order for the true depth of stain to be determined, thin sections of the materials should first be examined with a stereomicroscope to distinguish any contribution from adsorbed silver on the specimen edge. With this regimen, no stain was present in 41% of the restorations, and in a further 30%, the depth of stain was less than 50 microns. In two composites, the depth of stain was greater than 900 microns, and in a number of specimens, localized stain was found in association with attrition scars. Energy-dispersive x-ray analysis indicated that the amount of silver present in the degraded layers was very small. Overall, the results indicated that the staining technique is useful in the study of composite degradation.

Mair, L.H. (Univ. of Liverpool (England))

1991-03-01T23:59:59.000Z

390

Phase equilibrium conditions for simulated landfill gas hydrate formation in aqueous solutions of tetrabutylammonium nitrate  

Science Journals Connector (OSTI)

Abstract Hydrate phase equilibrium conditions for the simulated landfill gas (LFG) of methane and carbon dioxide (50 mol% methane, 50 mol% carbon dioxide) were investigated with the pressure range of (1.90 to 13.83) MPa and temperature range of (280.0 to 288.3) K at (0.050, 0.170, 0.340, and 0.394) mass fraction (w) of tetrabutylammonium nitrate (TBANO3). The phase boundary between liquid–vapor–hydrate (L–V–H) phases and liquid–vapor (L–V) phases was determined by employing an isochoric pressure-search method. The phase equilibrium data measured showed that TBANO3 appeared a remarkable promotion effect at w TBANO 3  = 0.394, corresponding to TBANO3 · 26H2O, but inhibition effect at w TBANO 3  = (0.050, or 0.170) on the semiclathrate hydrate formation. In addition, the application of TBANO3 at 0.340 mass fraction, corresponding to TBANO3 · 32H2O, displayed promotion effect at lower pressures (below 6.38 MPa) and inhibition effect at higher pressures (above 6.38 MPa).

Ling-Li Shi; De-Qing Liang; Dong-Liang Li

2014-01-01T23:59:59.000Z

391

The Effect of Time and Rate of Application of Nitrate of Soda on the Yield of Cotton.  

E-Print Network (OSTI)

TEXAS AGRICULTURAL EXPERIHENT STATIDJ A. R. CONNER, DIRECTOR COLLEGE STATION, BRAZOS COUNTY. TEXAS BULLETIN NO. 490 MARCH, 1934 .--' --7 , The Effect of Time and Rate of Application of Nitrate of Soda on the Yield of Cotton - AGRICULTURAL... .................................................................... Effect of Fertilizers on Shedding 17 ...................... Earliness .......... 18 . Summary and Conclusions 19 BULLETIN NO. 490 MARCH, 1934 EFFECT OF TIME AND RATE OF APPLICATION IJITRATE OF SODA ON THE YIELD OF COTTON The main object...

Reynolds, E. B. (Elbert Brunner); Langley, B. C. (Bryon Caldwell); Johnson, P. R. (Paul Rufus)

1934-01-01T23:59:59.000Z

392

Linking specific heterotrophic bacterial populations to bioreduction of uranium and nitrate using stable isotope probing in contaminated subsurface sediments  

SciTech Connect

Shifts in terminal electron-accepting processes during biostimulation of uranium-contaminated sediments were linked to the composition of stimulated microbial populations using DNA-based stable isotope probing. Nitrate reduction preceded U(VI) and Fe(III) reduction in [{sup 13}C]ethanol-amended microcosms. The predominant, active denitrifying microbial groups were identified as members of the Betaproteobacteria, whereas Actinobacteria dominated under metal-reducing conditions.

Akob, Denise M. [Florida State University; Kerkhof, Lee [Rutgers University; Kusel, Kirsten [Friedrich Schiller University Jena, Jena Germany; Watson, David B [ORNL; Palumbo, Anthony Vito [ORNL; Kostka, Joel [Florida State University

2011-01-01T23:59:59.000Z

393

Enhanced Growth of Acidovorax sp. Strain 2AN during Nitrate-Dependent Fe(II) Oxidation in Batch and Continuous-Flow Systems  

Science Journals Connector (OSTI)

...Fig. 3b). Acetate was depleted at day 2 and was replenished...Multiple influences of nitrate on uranium solubility during bioremediation of uranium-contaminated subsurface...18th ed. American Public Health Association, Washington...

Anirban Chakraborty; Eric E. Roden; Jürgen Schieber; Flynn Picardal

2011-10-14T23:59:59.000Z

394

On locating–dominating sets in infinite grids  

Science Journals Connector (OSTI)

Determining a malfunctioning component in a processor network gives the motivation for locating–dominating sets. It is shown that the smallest possible density of a locating–dominating set in the king grid equals 1/5 and in the hexagonal mesh 1/3. Moreover, we discuss a natural modification of locating–dominating sets.

Iiro Honkala; Tero Laihonen

2006-01-01T23:59:59.000Z

395

Improved approximation algorithms for a capacitated facility location problem  

E-Print Network (OSTI)

that ordinary randomized rounding rarely generates a feasible solution to the associated set covering problemImproved approximation algorithms for a capacitated facility location problem Fabi'an A. Chudak. There is a set of demand locations that require service from facilities; there is a set of locations at which

Keinan, Alon

396

Location-based Sponsored Search Advertising George Trimponias1  

E-Print Network (OSTI)

Location-based Sponsored Search Advertising George Trimponias1 , Ilaria Bartolini2 , Dimitris unprecedented opportunities for location-based advertising. In this work, we provide models and investigate the market for location-based sponsored search, where advertisers pay the search engine to be displayed

Papadias, Dimitris

397

Electrochemical reductions of Hg(II), ruthenium-nitrosyl complex, chromate, and nitrate in a strong alkaline solution  

SciTech Connect

The electrochemistry of low-level nuclear wastes, the reductions of Hg(II), [RuNO(NO{sub 2}){sub 4}OH]{sup 2{minus}}, CrO{sub 4}{sup 2{minus}}, and NO{sub 3}{sup {minus}} in 1.33 M NaOH solution have been studied primarily at nickel electrodes for electrocatalytic advantages. Hg(II) was reduced to Hg metal [equilibrium potential of 0.099 V vs NHE (normal hydrogen electrode)]. The ruthenium-nitrosyl complex, [RuNO(NO{sub 2}){sub 4}OH]{sup 2{minus}}, was reduced to Ru metal (half-wave potential of {minus}0.38 V vs NHE). Chromate was reduced to chromic hydroxide (equilibrium potential of {minus}0.24 V vs NHE). Nitrate reduction has two different regions of Tafel behavior from which reduction mechanisms are proposed. The exchange current densities for the nitrate reduction at Ni, Pb, Fe, and graphite were measured and the competition of the nitrate reduction with the hydrogen evolution investigated.

Bockris, J.O`M.; Kim, J. [Texas A and M Univ., College Station, TX (United States)

1996-12-01T23:59:59.000Z

398

Concentrator Photovoltaic System Basics | Department of Energy  

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

Concentrator Photovoltaic System Basics Concentrator Photovoltaic System Basics Concentrator Photovoltaic System Basics August 20, 2013 - 4:12pm Addthis Concentrator photovoltaic (PV) systems use less solar cell material than other PV systems. PV cells are the most expensive components of a PV system, on a per-area basis. A concentrator makes use of relatively inexpensive materials such as plastic lenses and metal housings to capture the solar energy shining on a fairly large area and focus that energy onto a smaller area-the solar cell. One measure of the effectiveness of this approach is the concentration ratio-in other words, how much concentration the cell is receiving. Concentrator PV systems have several advantages over flat-plate systems. First, concentrator systems reduce the size or number of cells needed and

399

Production of fullerenes using concentrated solar flux  

DOE Patents (OSTI)

A method of producing soot containing high amounts of fullerenes comprising: providing a primary concentrator capable of impingement of a concentrated beam of sunlight onto a carbon source to cause vaporization of carbon and subsequent formation of fullerenes, or providing a solar furnace having a primary concentrator with a focal point that concentrates a solar beam of sunlight; providing a reflective secondary concentrator having an entrance aperture and an exit aperture at the focal point of the solar furnace; providing a carbon source at the exit aperture of the secondary concentrator; supplying an inert gas over the carbon source to keep the secondary concentrator free from vaporized carbon; and impinging a concentrated beam of sunlight from the secondary concentrator on the carbon source to vaporize the carbon source into a soot containing high amounts of fullerenes.

Fields, Clark L. (Greeley, CO); Pitts, John Roland (Lakewood, CO); King, David E. (Lakewood, CO); Hale, Mary Jane (Golden, CO); Bingham, Carl E. (Denver, CO); Lewandowski, Allan A. (Evergreen, CO)

2000-01-01T23:59:59.000Z

400

Potential of Concentrated Solar Power (CSP) in Zimbabwe  

Science Journals Connector (OSTI)

Abstract This study seeks to assess the potential of utilizing Concentrated Solar Power for electricity generation in Zimbabwe. Data from 26 meteorological stations which are widely distributed around the country was used to map the distribution of solar radiation. Geographic information systems were employed to locate sites with potential for installing concentrating solar power plants. Areas with good potential were identified by using the following assessment factors: direct normal irradiance (DNI), proximity to transmission lines and water bodies, flatness of the area and the vulnerability of vegetation and wild life. After considering all the assessment factors, a total area of 250 000 km2 was found to be suitable. If only 10% of the suitable land area is used and the technology with the least efficiency (8–10%) is adopted, about 71.4 GW can be generated. The projected power generation is about thirty times the current power demand of the country.

S. Ziuku; L. Seyitini; B. Mapurisa; D. Chikodzi; Koen van Kuijk

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Planar photovoltaic solar concentrator module  

DOE Patents (OSTI)

A planar photovoltaic concentrator module for producing an electrical signal from incident solar radiation includes an electrically insulating housing having a front wall, an opposing back wall and a hollow interior. A solar cell having electrical terminals is positioned within the interior of the housing. A planar conductor is connected with a terminal of the solar cell of the same polarity. A lens forming the front wall of the housing is operable to direct solar radiation incident to the lens into the interior of the housing. A refractive optical element in contact with the solar cell and facing the lens receives the solar radiation directed into the interior of the housing by the lens and directs the solar radiation to the solar cell to cause the solar cell to generate an electrical signal. An electrically conductive planar member is positioned in the housing to rest on the housing back wall in supporting relation with the solar cell terminal of opposite polarity. The planar member is operable to dissipate heat radiated by the solar cell as the solar cell generates an electrical signal and further forms a solar cell conductor connected with the solar cell terminal to permit the electrical signal generated by the solar cell to be measured between the planar member and the conductor. 5 figs.

Chiang, C.J.

1992-12-01T23:59:59.000Z

402

Site Location of Development Act (Maine) | Department of Energy  

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

Location of Development Act (Maine) Location of Development Act (Maine) Site Location of Development Act (Maine) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Maine Program Type Siting and Permitting Provider Department of Environmental Protection The Site Location of Development Act regulates the locations chosen for

403

Building Technologies Office: DOE Challenge Home Partner Locator  

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

Building Technologies Office Search Building Technologies Office Search Search Help Building Technologies Office HOME ABOUT EMERGING TECHNOLOGIES RESIDENTIAL BUILDINGS COMMERCIAL BUILDINGS APPLIANCE & EQUIPMENT STANDARDS BUILDING ENERGY CODES EERE » Building Technologies Office » Residential Buildings Share this resource Send a link to Building Technologies Office: DOE Challenge Home Partner Locator to someone by E-mail Share Building Technologies Office: DOE Challenge Home Partner Locator on Facebook Tweet about Building Technologies Office: DOE Challenge Home Partner Locator on Twitter Bookmark Building Technologies Office: DOE Challenge Home Partner Locator on Google Bookmark Building Technologies Office: DOE Challenge Home Partner Locator on Delicious Rank Building Technologies Office: DOE Challenge Home Partner

404

Alternative Fuels Data Center: Natural Gas Fueling Station Locations  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

Natural Gas Natural Gas Printable Version Share this resource Send a link to Alternative Fuels Data Center: Natural Gas Fueling Station Locations to someone by E-mail Share Alternative Fuels Data Center: Natural Gas Fueling Station Locations on Facebook Tweet about Alternative Fuels Data Center: Natural Gas Fueling Station Locations on Twitter Bookmark Alternative Fuels Data Center: Natural Gas Fueling Station Locations on Google Bookmark Alternative Fuels Data Center: Natural Gas Fueling Station Locations on Delicious Rank Alternative Fuels Data Center: Natural Gas Fueling Station Locations on Digg Find More places to share Alternative Fuels Data Center: Natural Gas Fueling Station Locations on AddThis.com... More in this section... Natural Gas Basics Benefits & Considerations

405

Optics for Concentration on PV Cells  

Science Journals Connector (OSTI)

Modern PhotoVoltaic cells and technologies for Concentrating PhotoVoltaics require high level of solar light concentration. The paper proposes different collectors for the exploitation of solar light using CPV sy...

P. Sansoni; D. Fontani; F. Francini…

2009-01-01T23:59:59.000Z

406

Photovoltaic concentrator using a holographic optical element  

Science Journals Connector (OSTI)

A photovoltaic concentrator is proposed that uses equatorial tracking (the rotation axis of a concentrator points to the North Star), so that the change of the sun’s altitude angle is...

Zhang, Y W; Ih, C S; Yan, H F; Chang, M J

1988-01-01T23:59:59.000Z

407

Ethylene Glycol Poisoning and Lactate Concentrations  

Science Journals Connector (OSTI)

......2009 letter Letter to the Editor Ethylene Glycol Poisoning and Lactate Concentrations...Wilrijkstraat 10, B-2650 Edegem, Belgium Ethylene glycol poisoning and lactate concentrations...Comment Letter | 107-21-1 Ethylene Glycol 50-21-5 Lactic Acid......

Philippe G. Jorens

2009-09-01T23:59:59.000Z

408

Concentration in Mathematics (2014-2015)  

E-Print Network (OSTI)

Concentration in Mathematics (2014-2015) What Can You Do With Math? Concentration in mathematics is an excellent preparation for a career in either pure or applied mathematics, in academia or in industry on mathematical methods, a math concentration can provide an invaluable background for many different careers

Wolfe, Patrick J.

409

Non-imaging optics in photovoltaic concentration  

Science Journals Connector (OSTI)

It is suggested that solar energy could become a more economical power source through the use of techniques which concentrate the maximum amount of light onto photovoltaic cells. Limits of concentration are discussed and the design of practical 3D concentrations is considered

A. Luque

1986-01-01T23:59:59.000Z

410

Concentration of Atmospheric Radon and Wind Direction  

Science Journals Connector (OSTI)

... in Lisbon, near the sea, is therefore excellent to test any probable relationship between radon concentration and wind directions since only half the possible wind directions are continental ones, ... since only half the possible wind directions are continental ones, therefore corresponding probably to higher radon concentrations. In order to study any correlation, the concentration of ...

F. BARREIRA

1961-06-17T23:59:59.000Z

411

Description of Rhodanobacter denitrificans sp. nov., isolated from nitrate-rich zones of a contaminated aquifer  

SciTech Connect

Bacterial strains 2APBS1T and 116-2 were isolated from the subsurface of a nuclear legacy waste site where sediments are co-contaminated with large amounts of acidity, nitrate, metal radionuclides and other heavy metals. A combination of physiological and genetic assays indicated that these strains represent the first members of the Rhodanobacter genus shown to be capable of complete denitrification. Cells of strain 2APBS1T and 116-2 were Gram negative, non-spore-forming, rods, 3-5 micro;m long and 0.25-0.5 m in diameter. The isolates were facultative anaerobes, and had temperature and pH optima for growth at 30 C and pH 6.5, respectively, and could tolerate up to 2.0 % NaCl, though growth improved in its absence. Strains 2APBS1T and 116-2 contained fatty acid profiles and 100 % Q-8 ubiquinone, that are characteristic features of the genus Rhodanobacter. Although strains 2APBS1T and 116-2 share high SSU rRNA gene sequence similarity to R. thiooxydans (>99%), DNA-DNA hybridization values were substantially below the 70% threshold used to designate novel species. Thus, based on genotypic, phylogenetic, chemotaxonomic and physiological differences, strains 2APBS1T and 116-2 are considered to represent a novel species of the genus Rhodanobacter, for which the name Rhodanobacter denitrificans sp. nov is proposed. The type strain is 2APBS1T (=DSM 23569T =JCM 17641T). Strain 116-2 (=DSM 24678 = JCM 17642) is a reference strain.

Prakash, Om [Florida State University; Green, Stefan [Florida State University; Jasrotia, Puja [Florida State University; Overholt, Will [Florida State University; Canion, Andy [Florida State University; Watson, David B [ORNL; Brooks, Scott C [ORNL; Kostka, Joel [Florida State University

2011-01-01T23:59:59.000Z

412

Description of Rhodanobacter denitrificans sp. nov., isolated from nitrate-rich zones of a contaminated aquifer  

SciTech Connect

Bacterial strains 2APBS1T and 116-2 were isolated from the subsurface of a nuclear legacy waste site where sediments are co-contaminated with large amounts of acidity, nitrate, metal radionuclides and other heavy metals. A combination of physiological and genetic assays indicated that these strains represent the first members of the Rhodanobacter genus shown to be capable of complete denitrification. Cells of strain 2APBS1T and 116-2 were Gram negative, non-spore-forming, rods, 3-5 micro;m long and 0.25-0.5 m in diameter. The isolates were facultative anaerobes, and had temperature and pH optima for growth at 30 C and pH 6.5, respectively, and could tolerate up to 2.0 % NaCl, though growth improved in its absence. Strains 2APBS1T and 116-2 contained fatty acid profiles and 100 % Q-8 ubiquinone, that are characteristic features of the genus Rhodanobacter. Although strains 2APBS1T and 116-2 share high SSU rRNA gene sequence similarity to R. thiooxydans (>99%), DNA-DNA hybridization values were substantially below the 70% threshold used to designate novel species. Thus, based on genotypic, phylogenetic, chemotaxonomic and physiological differences, strains 2APBS1T and 116-2 are considered to represent a novel species of the genus Rhodanobacter, for which the name Rhodanobacter denitrificans sp. nov is proposed. The type strain is 2APBS1T (=DSM 23569T =JCM 17641T). Strain 116-2 (=DSM 24678 = JCM 17642) is a reference strain.

Prakash, Om [Florida State University, Tallahassee; Green, Stefan [Florida State University, Tallahassee; Jasrotia, Puja [Florida State University, Tallahassee; Overholt, Will [Florida State University, Tallahassee; Canion, Andy [Florida State University, Tallahassee; Watson, David B [ORNL; Brooks, Scott C [ORNL; Kostka, [Georgia Institute of Technology, Atlanta

2012-01-01T23:59:59.000Z

413

Nanofluidic Concentration Device for Biomolecules Utilizing Ion Concentration Polarization: Theory, Fabrication, and Applications  

E-Print Network (OSTI)

Recently, a new type of electrokinetic concentration devices has been developed in a microfluidic chip format, which allows efficient trapping and concentration of biomolecules by utilizing ion concentration polarization ...

Kim, Sung Jae

414

Alternative Fueling Station Locator App Provides Info at Your Fingertips |  

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

Alternative Fueling Station Locator App Provides Info at Your Alternative Fueling Station Locator App Provides Info at Your Fingertips Alternative Fueling Station Locator App Provides Info at Your Fingertips November 15, 2013 - 10:12am Addthis The Alternative Fueling Station Locator iPhone app helps you find fueling stations that offer electricity, natural gas, biodiesel, E85, propane, or hydrogen. | Energy Department The Alternative Fueling Station Locator iPhone app helps you find fueling stations that offer electricity, natural gas, biodiesel, E85, propane, or hydrogen. | Energy Department Shannon Brescher Shea Communications Manager, Clean Cities Program Smartphone users are familiar with the prompt, "Would you like this site to use your current location?" If you're looking for somewhere to fuel your

415

Establish Building Locations for Greenhouse Gas Mitigation | Department of  

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

Establish Building Locations for Greenhouse Gas Mitigation Establish Building Locations for Greenhouse Gas Mitigation Establish Building Locations for Greenhouse Gas Mitigation October 7, 2013 - 10:53am Addthis YOU ARE HERE Step 2 After estimating greenhouse gas (GHG) emissions by building type, building location is an important consideration in evaluating the relevance of energy-saving strategies due to variations in heating and cooling needs, and the GHG reduction potential due to variability of emissions factors across regions of the grid. If site-level energy use estimates are available for each of the program's key building types, the program can identify building locations with the greatest emission reduction potential by using the benchmarking approach. Locations with the worst energy performance relative to the benchmark are

416

Alternative Fueling Station Locator App Provides Info at Your Fingertips |  

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

Alternative Fueling Station Locator App Provides Info at Your Alternative Fueling Station Locator App Provides Info at Your Fingertips Alternative Fueling Station Locator App Provides Info at Your Fingertips November 15, 2013 - 10:12am Addthis The Alternative Fueling Station Locator iPhone app helps you find fueling stations that offer electricity, natural gas, biodiesel, E85, propane, or hydrogen. | Energy Department The Alternative Fueling Station Locator iPhone app helps you find fueling stations that offer electricity, natural gas, biodiesel, E85, propane, or hydrogen. | Energy Department Shannon Brescher Shea Communications Manager, Clean Cities Program Smartphone users are familiar with the prompt, "Would you like this site to use your current location?" If you're looking for somewhere to fuel your

417

Metamaterial anisotropic flux concentrators and magnetic arrays  

E-Print Network (OSTI)

A metamaterial magnetic flux concentrator is investigated in detail in combination with a Halbach cylinder of infinite length. A general analytical solution to the field is determined and the magnetic figure of merit is determined for a Halbach cylinder with a flux concentrator. It is shown that an ideal flux concentrator will not change the figure of merit of a given magnet design, while the non-ideal will always lower it. The geometric parameters producing maximum figure of merit, i.e. the most efficient devices, are determined. The force and torque between two concentric Halbach cylinders with flux concentrators is determined and the maximum torque is found. Finally, the effect of non-ideal flux concentrators and the practical use of flux concentrators, as well as demagnetization issues, is discussed.

Bjørk, R; Bahl, C R H

2014-01-01T23:59:59.000Z

418

Automated detection and location of indications in eddy current signals  

DOE Patents (OSTI)

A computer implemented information extraction process that locates and identifies eddy current signal features in digital point-ordered signals, signals representing data from inspection of test materials, by enhancing the signal features relative to signal noise, detecting features of the signals, verifying the location of the signal features that can be known in advance, and outputting information about the identity and location of all detected signal features.

Brudnoy, David M. (Albany, NY); Oppenlander, Jane E. (Burnt Hills, NY); Levy, Arthur J. (Schenectady, NY)

2000-01-01T23:59:59.000Z

419

Determining Optimal Locations for New Wind Energy Development in Iowa.  

E-Print Network (OSTI)

??The purpose of this research is to generate the most accurate model possible for predicting locations most suitable for new wind energy development using a… (more)

Mann, David

2011-01-01T23:59:59.000Z

420

GIS and Location Theory Based Bioenergy Systems Planning.  

E-Print Network (OSTI)

??This research is concerned with bioenergy systems planning and optimization modelling in the context of locating biomass power plants and allocating available biomass feedstock to… (more)

Dong, Jingyuan

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Policy-aware sender anonymity in Location-based services  

E-Print Network (OSTI)

from attackers who (via hacking or subpoenas) gain access toagainst attackers who, via hacking or subpoenas, gain accessthe location database D 1 (via hacking or subpoena) and is “

Vyas, Avinash

2011-01-01T23:59:59.000Z

422

Colorado CRS 29-20-108, Location, Construction, or Improvement...  

Open Energy Info (EERE)

Location, Construction, or Improvement of Major Electrical or Natural Gas Facilities Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document-...

423

Research Site Locations for Current EERE Postdoctoral Awards...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

More Documents & Publications Research Site Locations for Current and Former EERE Postdoctoral Awards EERE: VTO - Red Leaf PNG Image EERE: VTO - Hybrid Bus PNG Image...

424

Open Location-Oriented Services for the Web  

E-Print Network (OSTI)

point of a Service Oriented Architecture (SOA). Technically,the Web Service Oriented Architecture (SOA) ArchitecturalLocation-Oriented Services for the Web architecture based on

Wilde, Erik

2008-01-01T23:59:59.000Z

425

The Value of Flexibility in Robust Location-Transportation Problem  

E-Print Network (OSTI)

Nov 25, 2014 ... Abstract: Facility location decisions play a critical role in transportation planning. In fact, it has recently become essential to study how such ...

Amir Ardestani-Jaafari

2014-11-25T23:59:59.000Z

426

Lower Bounding Procedures for the Single Allocation Hub Location ...  

E-Print Network (OSTI)

[9] O'Kelly, M. E., A quadratic integer program for the location of interacting hub facilities, European Journal of Operational Research 32 (1987), pp. 393–404.

2014-11-30T23:59:59.000Z

427

Nanotechnology enterprise in the United States: structure and location.  

E-Print Network (OSTI)

??This thesis investigates the structure and location of the nanotechnology enterprise in the United States. Nanotechnology merits focus because of the high degree of innovative… (more)

Bhaskarabhatla, Ajay Sivaram

2006-01-01T23:59:59.000Z

428

p-facility Huff location problem on networks ?  

E-Print Network (OSTI)

sidering the location of two competing facilities on a linear market. ... This perturbs how the market is shared, since the new facilities will ..... Transactions in.

2014-10-30T23:59:59.000Z

429

Reliability Models for Facility Location: The Expected Failure Cost ...  

E-Print Network (OSTI)

Reliability Models for Facility Location: The Expected Failure Cost Case. Lawrence V. Snyder (larry.snyder ***at*** lehigh.edu) Mark S. Daskin (m-daskin *

Lawrence V. Snyder

430

Alternative Fueling Station Locator App Provides Info at Your...  

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

Fueling Station Locator website. It provides information on more than 15,000 public and private alternative fueling stations throughout the United States. The app lists where...

431

Optimization Online - THE MULTI–FACILITY LOCATION PROBLEM ...  

E-Print Network (OSTI)

Abstract: A generalized Weiszfeld method is proposed for the multi–facility location ... Category 1: Applications -- OR and Management Sciences (Other ).

Cem Iyigun

432

Wind Turbine Manufacturers in the U. S.: Locations and Local...  

Wind Powering America (EERE)

Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Wind Turbine Manufacturers in the U.S.: Locations and Local Impacts WINDPOWER 2010 Conference...

433

Announcement of Change in Public Meeting Location for the Northern...  

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

Announcement of Change in Public Meeting Location for the Northern Pass Transmission Line Project Published in the Federal Register Announcement of Change in Public Meeting...

434

Fault Location and Incipient Fault Detection in Distribution Cables.  

E-Print Network (OSTI)

??A set of fault location algorithms for underground medium voltage cables, two incipient fault detection schemes for distribution cables and a state estimation method for… (more)

Xu, Zhihan

2011-01-01T23:59:59.000Z

435

Property:EIA/861/NercLocation | Open Energy Information  

Open Energy Info (EERE)

NercLocation NercLocation Jump to: navigation, search This is a property of type String. Description: Nerc Location NERC Location: The North American Electric Reliability Corporation (NERC) region where the utility has its primary business operations (service territory), electrical generation, transmission, and distribution equipment, and its administrative headquarters. Some utilities have business operations and service areas in more than one NERC region. Power marketers, because they generally have only office equipment, can have business operations in any NERC region. FRCC = Florida Reliability Coordinating Council; MRO = Midwest Reliability Organization; NPCC = Northeast Power Coordinating Council; RFC = Reliability First Corporation (formerly MAAC, MAIN and ECAR); SERC = SERC Reliability Corporation; SPP =

436

Locating Climate Insecurity: Where Are the Most Vulnerable Places...  

Open Energy Info (EERE)

Insecurity: Where Are the Most Vulnerable Places in Africa? Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Locating Climate Insecurity: Where Are the Most Vulnerable...

437

An Aggressive Reduction Scheme for the Simple Plant Location ...  

E-Print Network (OSTI)

We used routines from the Callable Library of IBM CPLEX version. 12.1 to solve ..... [23] M. Sun (2006) Solving the uncapacitated facility location problem using.

2011-11-26T23:59:59.000Z

438

CHARACTERIZING THE INFLUENCE OF ANTHROPOGENIC EMISSIONS AND TRANSPORT VARIABILITY ON SULFATE AEROSOL CONCENTRATIONS AT MAUNA  

E-Print Network (OSTI)

CONCENTRATIONS AT MAUNA LOA OBSERVATORY Sulfate aerosol in the atmosphere has substantial impacts on human health confirmed that anthropogenic pollutants from Asian sources can be transported long distances with important implications for future air quality and global climate change. Located in the remote Pacific Ocean (19.54°N

Pierce, Jeffrey

439

Location of Freight Consolidation Centres Serving the City and Its Surroundings  

Science Journals Connector (OSTI)

This paper investigates small road haulier's spatial location and road network accessibility in relation to proposed freight consolidation centres (FCCs). For many decades, the overall load factor in freight vehicles has decreased; smaller volumes of goods have been transported over longer distances. To counteract this, a well-planned localisation of \\{FCCs\\} has been suggested as a measure to improve transport efficiency. Based on 3,024 road hauliers, road haulier associations, freight forwarders, and delivery firms/couriers located in the Western part of Sweden, the analysis show a high concentration of small road hauliers towards the largest city, its immediate surroundings, and towards existing facilities of large freight forwarders and road haulier associations. Furthermore, the accessibility analysis shows that a very large majority of the small road hauliers as well as large forwarders and haulier associations are reached within a short time distance from the proposed FCCs, indicating the potential to establish \\{FCCs\\} serving small road hauliers. While it is not possible to conclude that the ‘proposed’ \\{FCCs\\} are optimally located, the paper provides a basis to further investigate the most appropriate locations of \\{FCCs\\} serving the city and its surroundings, and whether and under what conditions FCC establishments are viable.

Jerry Olsson; Johan Woxenius

2012-01-01T23:59:59.000Z

440

Scale formation at various locations in a geothermal operation due to injection of imported waters  

SciTech Connect

The injection of waters that are not native to a geothermal formation generates various physical and chemical problems. The major chemical problem resulting from such injections is the formation of sulfate scales (particularly CaSO4, BaSO4 and SrSO4) at various locations starting from the injection well through the production well to the surface facilities of any geothermal operation. One of the ways to prevent this type of scale formation is by reducing the sulfate concentration of the injection waters. The effect of sulfate deionization on scale formation at various locations of the geothermal operations is studied. Some experimental results on the CaSO4 scale formation in porous media upon heating an injection water with and without addition of scale inhibitors are also given.

Vetter, O.J.; Kandarpa, V.

1982-06-22T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Sensitivity of forced air distribution system efficiency to climate, duct location, air leakage and insulation  

E-Print Network (OSTI)

Location, Air Leakage and Insulation Iain S. Walker Energy4 Duct Insulation, Location and Leakageinsulation

Walker, Iain

2001-01-01T23:59:59.000Z

442

Concentration of HCB in Callinectes sapidus from the Calcasieu Estuary, Louisiana  

SciTech Connect

Blue crabs (Callinectes sapidus) were collected from several areas in the estuary, and edible tissues were analyzed for the organic compound hexachlorobenzene (HCB). Hexachlorobenzene was established as an indicator of industrial chemical contamination by the Louisiana Department of Health and Hospitals (LDHH). This organization used the FDA interim guideline concentration of 0.5 ppm HCB in fatty tissue of beef to develop an emergency action level of 0.060 ppm for edible seafood. In this study, an average HCB tissue concentration of 40 ppb was found in the Calcasieu Estuary. There was no significant difference in concentrations between sampling locations. However, the range in HCB concentrations varied among samples, with some analyses yielding tissue concentrations greater than the emergency action level of 60 ppb.

Murray, H.E.; Murphy, C.N.; Gaston, G.R. (McNeese State Univ., Lake Charles, LA (United States))

1992-01-01T23:59:59.000Z

443

Siemens Concentrated Solar Power Ltd previously Solel Solar Systems | Open  

Open Energy Info (EERE)

Siemens Concentrated Solar Power Ltd previously Solel Solar Systems Siemens Concentrated Solar Power Ltd previously Solel Solar Systems Jump to: navigation, search Name Siemens Concentrated Solar Power Ltd (previously Solel Solar Systems) Place Beit-Shemesh, Israel Zip 99107 Sector Solar Product Israel-based subsidiary manufacturing solar thermal electricity generation (STEG) components for power plants, also develops some of its own STEG projects. Coordinates 31.75°, 35° 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":31.75,"lon":35,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

444

Concentrating Solar Power Basics | Department of Energy  

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

Basics Basics Concentrating Solar Power Basics August 20, 2013 - 4:38pm Addthis Text Version This solar concentrator has a fixed-focus faceted dish with a concentration of about 250 suns. This system can be used for large fields connected to the utility grid, hydrogen generation, or water pumping. Credit: Science Applications International Corporation / PIX 13464 Concentrating solar power (CSP) technologies use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. This thermal energy can then be used to produce electricity via a steam turbine or heat engine that drives a generator. Concentrating solar power offers a utility-scale, firm, dispatchable renewable energy option that can help meet our nation's demand for

445

On locating-dominating sets in infinite grids  

Science Journals Connector (OSTI)

Determining a malfunctioning component in a processor network gives the motivation for locating-dominating sets. It is shown that the smallest possible density of a locating-dominating set in the king grid equals 1/5 and in the hexagonal mesh 1/3. Moreover, ...

Iiro Honkala; Tero Laihonen

2006-02-01T23:59:59.000Z

446

WORKING PAPER N 2009 -11 Regulatory policy and the location  

E-Print Network (OSTI)

Pamina Koenig Megan MacGarvie JEL Codes: F23, I18 Keywords: Pharmaceutical industry, location choices: pharmaceutical industry, location choices, price regulations, discrete choice model This paper was prepared plants. The pharmaceutical industry is one example of this type of industry. The pharmaceutical industry

Paris-Sud XI, Université de

447

Inferring human mobility patterns from taxicab location traces  

Science Journals Connector (OSTI)

Taxicabs equipped with real-time location sensing devices are increasingly becoming popular. Such location traces are a rich source of information and can be used for congestion pricing, taxicab placement, and improved city planning. An important problem ... Keywords: hidden markov models, human mobility patterns, taxi cab occupancy, trajectory analysis

Raghu Ganti; Mudhakar Srivatsa; Anand Ranganathan; Jiawei Han

2013-09-01T23:59:59.000Z

448

The Functional Neuroanatomy of Thematic Role and Locative Relational Knowledge  

E-Print Network (OSTI)

The Functional Neuroanatomy of Thematic Role and Locative Relational Knowledge Denise H. Wu1 neuroscience have focused on conceptual knowledge of concrete objects. By contrast, relational concepts have been largely ignored. We examined thematic role and locative knowledge in 14 left- hemisphere

Chatterjee, Anjan

449

Multiple Aphid Resistance from Alien Sources and its Chromosomal Location  

E-Print Network (OSTI)

Multiple Aphid Resistance from Alien Sources and its Chromosomal Location in Bread Wheat Leonardo A Alien Sources and Its Chromosomal Location in Bread Wheat Abstract Wheat (Triticum aestivum) is a very of this thesis were to: 1) identify novel sources of resistance to multiple aphid species in a wheat-alien

450

LOCATION OF BANKING AUTOMATIC TELLER MACHINES BASED ON CONVOLUTION  

E-Print Network (OSTI)

optimal location of gas stations, health care units, warehouses, police stations, and power plants, supermarkets, gas stations, and other high-traffic shopping areas are prime locations for ATM sites facilities", such as gas stations and automated teller machines [9]. Generally, customers do not regard

Aldajani, Mansour A.

451

A MODELING APPROACH FOR LOCATING LOGISTICS PLATFORMS FOR FAST PARCEL  

E-Print Network (OSTI)

1 29 A MODELING APPROACH FOR LOCATING LOGISTICS PLATFORMS FOR FAST PARCEL DELIVERY IN URBAN AREAS for optimizing, in a sustainable way (i.e. economical, eco-friendly and societal), the location of logistics has a logistics platform right in its centre (ARENC: 41362 m2 of warehouses and offices

Paris-Sud XI, Université de

452

Predicting Debris-Slide Locations in Northwestern California1  

E-Print Network (OSTI)

Predicting Debris-Slide Locations in Northwestern California1 Mark E. Reid,2 Stephen D. Ellen,3 tested four topographic models for predicting locations of debris-slide sources: 1) slope; 2) proximity to stream; 3) SHALSTAB with "standard" parameters; and 4) debris-slide-prone landforms, which delineates

Standiford, Richard B.

453

Quest for Personal Control over Mobile Location Privacy Pradeep Khosla  

E-Print Network (OSTI)

live and work, offering the promise of bringing us close to the holy grail of information technology to be utilized. Many efforts have been made to get it available, as one of the key services in the ubiquitous the architecture, there is a centralized location server, where a mobile user can register and submit her location

Wu, Dapeng Oliver

454

RESIDENTIAL LOCATION CHOICE AND TRAVEL BEHAVIOR: IMPLICATIONS FOR AIR QUALITY  

E-Print Network (OSTI)

RESIDENTIAL LOCATION CHOICE AND TRAVEL BEHAVIOR: IMPLICATIONS FOR AIR QUALITY UC Davis-Caltrans Air Avenue Davis, CA 95616 Prepared for The California Department of Transportation Mike Brady, Air Quality control measure. #12;RESIDENTIAL LOCATION CHOICE AND TRAVEL BEHAVIOR: IMPLICATIONS FOR AIR QUALITY

Levinson, David M.

455

Locating-total domination in claw-free cubic graphs  

Science Journals Connector (OSTI)

In this paper, we continue the study of locating-total domination in graphs. A set S of vertices of a graph G is a total dominating set of G if every vertex of G is adjacent to a vertex in S . We consider total dominating sets S which have the additional property that distinct vertices in V ( G ) ? S are totally dominated by distinct subsets of the total dominating set. Such a set S is called a locating-total dominating set in G , and the locating-total domination number of G is the minimum cardinality of a locating-total dominating set in G . A claw-free graph is a graph that does not contain K 1 , 3 as an induced subgraph. We show that the locating-total domination number of a claw-free cubic graph is at most one-half its order and we characterize the graphs achieving this bound.

Michael A. Henning; Christian Löwenstein

2012-01-01T23:59:59.000Z

456

Property:Geothermal/LocationOfProject | Open Energy Information  

Open Energy Info (EERE)

LocationOfProject LocationOfProject Jump to: navigation, search Property Name Geothermal/LocationOfProject Property Type Page Description Location of Project Pages using the property "Geothermal/LocationOfProject" Showing 25 pages using this property. (previous 25) (next 25) A A 3D-3C Reflection Seismic Survey and Data Integration to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchill Co., NV Geothermal Project + Soda Lake, Nevada + A Demonstration System for Capturing Geothermal Energy from Mine Waters beneath Butte, MT Geothermal Project + Butte, Montana + A Geothermal District-Heating System and Alternative Energy Research Park on the NM Tech Campus Geothermal Project + Socorro, New Mexico +

457

Sandia National Laboratories: Concentrating Solar Power: Efficiently...  

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

Equilibrium Mechanisms for Engineering New Thermochemical Storage Sandia Researchers Win CSP:ELEMENTS Funding Award On June 4, 2014, in Advanced Materials Laboratory, Concentrating...

458

Concentrating Solar Power | Department of Energy  

Office of Environmental Management (EM)

technologies use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. Thermal energy can then be used to produce...

459

Sandia National Laboratories: Concentrating Solar Power  

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

InstituteSandia Photovoltaic Systems Symposium On April 15, 2014, in Concentrating Solar Power, Distribution Grid Integration, Energy, Facilities, Grid Integration, News,...

460

Sandia National Laboratories: Concentrating Solar Power  

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

Sandia and EMCORE: Solar Photovoltaics, Fiber Optics, MODE, and Energy Efficiency On March 29, 2013, in Concentrating Solar Power, Energy, Partnership, Photovoltaic, Renewable...

Note: This page contains sample records for the topic "location concentration nitrate" 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

TOPCAT Solar Cell Alignment & Energy Concentration Technology...  

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

Thermal Solar Thermal Find More Like This Return to Search TOPCAT Solar Cell Alignment & Energy Concentration Technology Sandia National Laboratories Contact SNL About This...

462

Sandia National Laboratories: Concentrating Solar Power  

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

Center in Vermont Achieves Milestone Installation On September 23, 2014, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

463

Concentrating Solar Power Resources and Technologies  

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

This page provides a brief overview of concentrating solar power (CSP) technologies supplemented by specific information to apply CSP within the Federal sector.

464

Concentrating Solar Power: Energy from Mirrors  

SciTech Connect

This fact sheet explains how concentrating solar power technology works and the three types of systems in development today: trough, dish, and central receiver.

Poole, L.

2001-02-27T23:59:59.000Z

465

Concentrating Solar Power (Revised) (Fact Sheet)  

SciTech Connect

The fact sheet summarizes the goals and activities of the DOE Solar Energy Technologies Program efforts within its concentrating solar power subprogram.

Not Available

2010-11-01T23:59:59.000Z

466

Technological value of coal concentrates for coking  

Science Journals Connector (OSTI)

Options are outlined for calculating the technological value of coal and coal concentrates in the context of contractual obligations and the quality of the coke produced.

E. N. Stepanov; G. V. Larin; A. E. Stepanova; I. V. Semiokhina

2010-02-01T23:59:59.000Z

467

Sandia National Laboratories: Concentrating Solar Power  

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

Solar Power Technical Management Position On July 12, 2012, in Concentrating Solar Power, Energy, Facilities, Job Listing, National Solar Thermal Test Facility, News,...

468

Sandia National Laboratories: Concentrating Solar Power  

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

Salt Initial Flow Testing is a Tremendous Success On November 2, 2012, in Concentrating Solar Power, News, Renewable Energy, Solar The Molten Salt Test Loop (MSTL ) system at...

469

Sandia National Laboratories: Concentrating Solar Power  

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

Sandia Workers Received Entrepreneurial Spirit Awards On April 3, 2013, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, News &...

470

Sandia National Laboratories: Concentrating Solar Power  

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

Safety and Health Go Green Initiative On December 19, 2012, in Concentrating Solar Power, Energy, Events, Facilities, National Solar Thermal Test Facility, News, News...

471

Sandia National Laboratories: Concentrating Solar Power  

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

in Concentrating Solar Power, Customers & Partners, Energy, News, Partnership, Renewable Energy, Solar Areva Solar is collaborating with Sandia National Laboratories on a new...

472

Project Profile: Concentrated Solar Thermoelectric Power | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Solar Thermoelectric Power Project Profile: Concentrated Solar Thermoelectric Power MIT logo The Rohsenow-Kendall Heat Transfer Lab at Massachusetts Institute of...

473

A solar concentrating photovoltaic/thermal collector .  

E-Print Network (OSTI)

??This thesis discusses aspects of a novel solar concentrating photovoltaic / thermal (PV/T) collector that has been designed to produce both electricity and hot water.… (more)

Coventry, Joseph S

2008-01-01T23:59:59.000Z

474

Change in Contaminant Concentration in Fraser  

E-Print Network (OSTI)

during this period: dioxins, furans, polycyclic aromatic hydrocarbons (PAHs), chlorophenolics, resin to the peak in suspended sediment concentration during the freshet sampling period, iv) dioxins

475

Sandia National Laboratories: Concentrating Solar Power  

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

NASA's Solar Tower Test of the 1-Meter Aeroshell On August 23, 2012, in Concentrating Solar Power, Energy, Facilities, National Solar Thermal Test Facility, News, Partnership,...

476

Sandia National Laboratories: Concentrating Solar Power Systems  

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

Power Systems Air Force Research Laboratory Testing On November 2, 2012, in Concentrating Solar Power, Facilities, National Solar Thermal Test Facility, News, News & Events,...

477

Sandia National Laboratories: Concentrating Solar Power  

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

and Transportation R&D Activities View all EC Publications Related Topics Concentrating Solar Power CSP EFRC Energy Energy Efficiency Energy Security Infrastructure...

478

Microtracking and Self-Adaptive Solar Concentration  

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

This presentation was delivered at the SunShot Concentrating Solar Power (CSP) Program Review 2013, held April 23–25, 2013 near Phoenix, Arizona.

479

Laboratory performance testing of an extruded bitumen containing a surrogate, sodium nitrate-based, low-level aqueous waste  

SciTech Connect

Laboratory results of a comprehensive, regulatory performance test program, utilizing an extruded bitumen and a surrogate, sodium nitrate-based waste, have been compiled at the Oak Ridge National Laboratory (ORNL). Using a 53 millimeter, Werner and Pfleiderer extruder, operated by personnel of WasteChem Corporation of Paramus, New Jersey, laboratory-scale, molded samples of type three, air blown bitumen were prepared for laboratory performance testing. A surrogate, low-level, mixed liquid waste, formulated to represent an actual on-site waste at ORNL, containing about 30 wt % sodium nitrate, in addition to eight heavy metals, cold cesium and strontium was utilized. Samples tested contained three levels of waste loading: that is, forty, fifty and sixty wt % salt. Performance test results include the ninety day ANS 16.1 leach test, with leach indices reported for all cations and anions, in addition to the EP Toxicity test, at all levels of waste loading. Additionally, test results presented also include the unconfined compressive strength and surface morphology utilizing scanning electron microscopy. Data presented include correlations between waste form loading and test results, in addition to their relationship to regulatory performance requirements.

Mattus, A.J.; Kaczmarsky, M.M.

1986-12-15T23:59:59.000Z

480

Standard test method for gamma energy emission from fission products in uranium hexafluoride and uranyl nitrate solution  

E-Print Network (OSTI)

1.1 This test method covers the measurement of gamma energy emitted from fission products in uranium hexafluoride (UF6) and uranyl nitrate solution. It is intended to provide a method for demonstrating compliance with UF6 specifications C 787 and C 996 and uranyl nitrate specification C 788. 1.2 The lower limit of detection is 5000 MeV Bq/kg (MeV/kg per second) of uranium and is the square root of the sum of the squares of the individual reporting limits of the nuclides to be measured. The limit of detection was determined on a pure, aged natural uranium (ANU) solution. The value is dependent upon detector efficiency and background. 1.3 The nuclides to be measured are106Ru/ 106Rh, 103Ru,137Cs, 144Ce, 144Pr, 141Ce, 95Zr, 95Nb, and 125Sb. Other gamma energy-emitting fission nuclides present in the spectrum at detectable levels should be identified and quantified as required by the data quality objectives. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its us...

American Society for Testing and Materials. Philadelphia

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "location concentration nitrate" 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

Water sorption behaviour of highly swelling (carboxy methylcellulose-g-polyacrylamide) hydrogels and release of potassium nitrate as agrochemical  

Science Journals Connector (OSTI)

Novel types of highly swelling hydrogels have been prepared by grafting crosslinked polyacrylamide chains onto carboxymethylcellulose (CMC) via a free radical polymerization method. The hydrogels were characterized by IR spectral analysis and by evaluating various network parameters such as average molecular weight between crosslinks (Mc), crosslink density (q) and the number of elastically effective chains (Vc). The hydrogels showed enormous swelling in aqueous medium and displayed swelling characteristics which were highly dependent on the chemical composition of the hydrogel and pH and ionic strength of the medium in which the hydrogel was immersed. The kinetics of water uptake and the water transport mechanism were studied as a function of the composition of the hydrogel and the pH of the medium. The hydrogels were also loaded with potassium nitrate as a model agrochemical and their potential for controlled release of potassium nitrate was judged by measuring conductivity. Various kinetic parameters such as the diffusion coefficient and swelling exponents were also calculated.

A.K Bajpai; Anjali Giri

2003-01-01T23:59:59.000Z

482

Solar refractive secondary concentrator technology overview  

Science Journals Connector (OSTI)

Refractive secondary concentrators coupled with advanced primary concentrators can efficiently convert solar energy to heat for a wide variety of space applications including power generation thermal propulsion and furnaces. These applications typically require very high temperatures (as high as 2000 K) and high concentration ratios (10 000 to 1). To enable concentration systems that meet these requirements the NASA Glenn Research Center is developing the refractive secondary concentrator which uses refraction and total internal reflection to concentrate and direct solar energy. Presented is an overview of the refractive secondary concentrator technology development effort including a description of benefits past accomplishments and future plans. Highlighted is a recent proof-of-concept test of a prototype sapphire refractive secondary concentrator performed in a solar vacuum environment that demonstrated throughput efficiency of 87%. It is anticipated that the application of an optical coating to the inlet surface of the refractive secondary to reduce the reflection losses at this surface can improve the throughput efficiency to 93%. Plans to conduct additional solar thermal vacuum tests to demonstrate high temperatures and high throughput power are also presented (up to 2000 K and 5 kW).

Wayne A. Wong

2001-01-01T23:59:59.000Z

483

MANAGEMENT INFORMATION SYSTEMS (MIS) CONCENTRATION FOR UNDERGRADUATES  

E-Print Network (OSTI)

MANAGEMENT INFORMATION SYSTEMS (MIS) CONCENTRATION FOR UNDERGRADUATES The management information systems concentration, like a major, focuses on the use of information technology for value creation creation. Link to Rensselaer 2012-2013 Catalog Required Courses MGMT 4240 Systems Analysis & Design MGMT

Salama, Khaled

484

Requirements for a Concentration in Energy Technologies  

E-Print Network (OSTI)

Technologies ­ 4 cr ENG EC 417 ­ Electric Energy Systems: Adapting to Renewable Resources ­ 4 cr Additional* - Methods of Environmental Policy ­ 4 cr ENG ME 533 ­ Energy Conversion ­ 4 cr ENG EC/ME/SE 543Requirements for a Concentration in Energy Technologies The concentration in Energy Technologies

485

Highly concentrated foam formulation for blast mitigation  

DOE Patents (OSTI)

A highly concentrated foam formulation for blast suppression and dispersion mitigation for use in responding to a terrorism incident involving a radiological dispersion device. The foam formulation is more concentrated and more stable than the current blast suppression foam (AFC-380), which reduces the logistics burden on the user.

Tucker, Mark D. (Albuquerque, NM); Gao, Huizhen (Albuquerque, NM)

2010-12-14T23:59:59.000Z

486

Definition: Concentrating solar power | Open Energy Information  

Open Energy Info (EERE)

Dictionary.png Dictionary.png Concentrating solar power Technologies that use mirrors to reflect and concentrate sunlight onto receivers that collect solar energy and convert it to heat. This thermal energy can then be used to produce electricity via a steam turbine or heat engine that drives a generator.[1][2] View on Wikipedia Wikipedia Definition . ]] File:El-v-01 ubt. jpeg Sustainable energy Renewable energy Anaerobic digestion Hydroelectricity · Geothermal Microgeneration · Solar Tidal · Wave · Wind Energy conservation Cogeneration · Energy efficiency Geothermal heat pump Green building · Passive Solar Sustainable transport Plug-in hybrids · Electric vehicles File:Terra- edge blur. png Environment Portal v · d · e Concentrated solar power (also called concentrating solar power, concentrated solar thermal, and CSP) systems use

487

Renewable Energy Co-Location of Distribution Facilities (Virginia) |  

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

Co-Location of Distribution Facilities (Virginia) Co-Location of Distribution Facilities (Virginia) Renewable Energy Co-Location of Distribution Facilities (Virginia) < Back Eligibility Commercial Construction Developer Fuel Distributor Industrial Installer/Contractor Investor-Owned Utility Local Government Municipal/Public Utility Rural Electric Cooperative Systems Integrator Tribal Government Utility Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Virginia Program Type Siting and Permitting Provider Virginia State Corporation Commission This legislation applies to distribution facilities, which include poles and wires, cables, pipelines, or other underground conduits by which a renewable generator is able to (i) supply electricity generated at its

488

Rules Establishing Minimum Standards Relating to Location, Design,  

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

Rules Establishing Minimum Standards Relating to Location, Design, Rules Establishing Minimum Standards Relating to Location, Design, Construction, and Maintenance of Onsite Wastewater Treatment Systems (Rhode Island) Rules Establishing Minimum Standards Relating to Location, Design, Construction, and Maintenance of Onsite Wastewater Treatment Systems (Rhode Island) < Back Eligibility Agricultural Commercial Construction Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Low-Income Residential Multi-Family Residential Municipal/Public Utility Nonprofit Residential Retail Supplier Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Transportation Tribal Government Utility Program Info State Rhode Island Program Type Environmental Regulations

489

Degradation of perchloroethylene and nitrate by high-activity modified green rusts  

E-Print Network (OSTI)

-F(Pt) was characterized using a batch reactor system. The reaction kinetics of PCE degradation by GR-F(Cu) and GR-F(Pt) was strongly dependent on pH over the range of pH 7.5-11, with the fastest rate at pH 11. Increasing concentrations of Cu(II) over the range of 0 to 5 m...

Choi, Jeong Yun

2006-10-30T23:59:59.000Z

490

Metals in albatross feathers from Midway Atoll: Influence of species, age, and nest location  

SciTech Connect

In this paper the authors examine the concentrations of metals (heavy metals, mercury, lead, cadmium, chromium, manganese, tin; and metalloids, arsenic and selenium), in the down and contour (body) feathers of half-grown young albatrosses, and contour feathers of one of their parents. They collected feathers from Laysan Diomedea immutabilis and black-footed Diomedea nigripes albatrosses from Midway Atoll in the central Pacific Ocean. The authors test the null hypotheses that there is no difference in metal levels as a function of species, age, feather type, and location on the island. Using linear regression they found significant models accounting for the variation in the concentrations of mercury, lead, cadmium, selenium, chromium, and manganese (but not arsenic or tin) as a function of feather type (all metals), collection location (all metals but lead), species (selenium only), and interactions between these factors. Most metals (except mercury, arsenic, and tin) were significantly higher in down than in the contour feathers of either chicks or adults. Comparing the two species, black-footed albatross chicks had higher levels of most elements (except arsenic) in their feathers and/or down. Black-footed adults had significantly higher levels of mercury and selenium. They also collected down and feathers from Laysan albatross chicks whose nests were close to buildings, including buildings with flaking lead paint and those that had been lead-abated.

Burger, J.; Gochfeld, M.

2000-03-01T23:59:59.000Z

491

NREL: Concentrating Solar Power Research - Become Part of SOLRMAP  

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

Become Part of SOLRMAP Become Part of SOLRMAP The National Renewable Energy Laboratory (NREL) is inviting additional participation in SOLRMAP-the Solar Resource and Meteorological Assessment Project. In late 2008, we established this effort through a pilot project with a limited number of participants. The 2009 deadline for participation has passed, but we may expand the program in the future. SOLRMAP establishes high-quality solar measurements at targeted locations to enable deployment of concentrating solar thermal projects in the United States. The measurements also provide NREL with critical data for model development and other research that advances techniques in solar resource assessment. At the present time, NREL does not have funding to support SOLRMAP for photovoltaic projects.

492

Tracking heat flux sensors for concentrating solar applications  

DOE Patents (OSTI)

Innovative tracking heat flux sensors located at or near the solar collector's focus for centering the concentrated image on a receiver assembly. With flux sensors mounted near a receiver's aperture, the flux gradient near the focus of a dish or trough collector can be used to precisely position the focused solar flux on the receiver. The heat flux sensors comprise two closely-coupled thermocouple junctions with opposing electrical polarity that are separated by a thermal resistor. This arrangement creates an electrical signal proportional to heat flux intensity, and largely independent of temperature. The sensors are thermally grounded to allow a temperature difference to develop across the thermal resistor, and are cooled by a heat sink to maintain an acceptable operating temperature.

Andraka, Charles E; Diver, Jr., Richard B

2013-06-11T23:59:59.000Z

493

Energy Department Launches Alternative Fueling Station Locator App |  

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

Launches Alternative Fueling Station Locator App Launches Alternative Fueling Station Locator App Energy Department Launches Alternative Fueling Station Locator App November 7, 2013 - 11:16am Addthis As part of the Obama Administration's commitment to expand access to data and give consumers more transportation options that save money at the pump, the Energy Department today launched a new mobile app to help drivers find stations that provide alternative fuel for vehicles. Developed by the National Renewable Energy Laboratory with support from the Energy Department, the Alternative Fueling Station Locator app provides information on more than 15,000 stations across the country. Users can search for stations that offer electricity, biodiesel (B20), natural gas (compressed and liquefied), ethanol (E85), hydrogen, and propane. After the

494

Energy Department Launches Alternative Fueling Station Locator App |  

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

Energy Department Launches Alternative Fueling Station Locator App Energy Department Launches Alternative Fueling Station Locator App Energy Department Launches Alternative Fueling Station Locator App November 7, 2013 - 11:16am Addthis As part of the Obama Administration's commitment to expand access to data and give consumers more transportation options that save money at the pump, the Energy Department today launched a new mobile app to help drivers find stations that provide alternative fuel for vehicles. Developed by the National Renewable Energy Laboratory with support from the Energy Department, the Alternative Fueling Station Locator app provides information on more than 15,000 stations across the country. Users can search for stations that offer electricity, biodiesel (B20), natural gas (compressed and liquefied), ethanol (E85), hydrogen, and propane. After the

495

Persistent Uniform Resource Locators (PURLs) | Scientific and Technical  

Office of Scientific and Technical Information (OSTI)

Persistent Uniform Resource Locators (PURLs) Persistent Uniform Resource Locators (PURLs) Print page Print page Email page Email page PURLs (Persistent Uniform Resource Locators) are Web addresses that act as permanent identifiers in the face of a dynamic and changing Web infrastructure. Instead of resolving directly to Web resources, PURLs describe an intermediate location that allows the underlying Web addresses of resources to change over time without negatively affecting systems that depend on them. This capability provides continuity of references to network resources that may migrate from machine to machine for various reasons. Operation PURLs look just like URLs because they are valid URLs. A PURL has three parts: the protocol used to access the PURL resolver, the resolver IP address or domain, and a user-assigned name.

496

Stakeholder Engagement and Outreach: School Wind Project Locations  

Wind Powering America (EERE)

School Wind Project Locations School Wind Project Locations This map shows the location of installed and planned school wind energy projects in the United States. Find school wind projects for K-12, community colleges, universities, and more. You can also learn how to use the Google Map and how to add your school wind project to the map. For more information and data from the schools, see the OpenEI website. Text Version School Wind Project Locations , Northern Alberta Institute of Technology Alaska, Alaska Wind-Diesel Wind Application Center (University of Alaska) Alaska, Begich Middle School Alaska, Kodiak High School Alaska, Mt. Edgecumbe High School Alaska, Northwestern Alaska Career and Technical Center Alaska, Sherrod Elementary School Alaska, U.S. Coast Guard - Juneau Alaska, University of Alaska Anchorage - Mat-Su College

497

Energy Department Announces Student Teams, New Location for Solar Decathlon  

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

Announces Student Teams, New Location for Solar Announces Student Teams, New Location for Solar Decathlon 2013 Energy Department Announces Student Teams, New Location for Solar Decathlon 2013 January 26, 2012 - 10:56am Addthis WASHINGTON, DC - At an event today in Albuquerque, New Mexico, U.S. Department of Energy Secretary Steven Chu announced the 20 collegiate teams selected to compete in the U.S. Department of Energy Solar Decathlon 2013 and unveiled the competition's location, the Orange County Great Park in Irvine, California. The 20 teams from colleges and universities across the United States and from around the world will now begin a two-year process to build solar-powered, highly energy-efficient homes that combine affordability, consumer appeal and design excellence. Throughout the two-year process, the teams will design, construct and test their homes

498

Optimization of Storage Location Assignment for Fixed Rack Systems  

Science Journals Connector (OSTI)

A multi-objective mathematical model and an improved Genetic Algorithm (GA) are formulated for storage location assignment of the fixed rack system. According to the assignment rules, ... efficiency and to keep t...

Qinghong Wu; Ying Zhang; Zongmin Ma

2010-01-01T23:59:59.000Z

499

Microsoft Word - postdoc-career-fair-locations-maps.docx  

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

Los A lamos N ational L aboratory Postdoc C areer F air 2 014 Location of Events (Maps with driving instructions) Tuesday, S ept. 9 th Otowi B uilding, 3 rd F loor LANL, T A---03,...

500

New approach to the fault location problem using synchronized sampling  

E-Print Network (OSTI)

This thesis presents a new approach to solving the problem of fault location on a transmission line using synchronized data from both ends of the line. The synchronized phase voltage and current samples taken during the fault transient are used...

Mrkic, Jasna

2012-06-07T23:59:59.000Z