Powered by Deep Web Technologies
Note: This page contains sample records for the topic "deposits estimated rare" 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.


1

Hydrothermal transport and deposition of the rare earth elements by fluorine-bearing aqueous liquids  

E-Print Network (OSTI)

ARTICLE Hydrothermal transport and deposition of the rare earth elements by fluorine environmental concerns, have created a great demand for the rare earth elements (REE), and focused considerable Hydrothermal concentration of the rare earth elements (REE) to economic and potentially economic levels has

2

A Forward Look into Rare Earth Supply and Demand: A Role for Sedimentary Phosphate Deposits?  

Science Journals Connector (OSTI)

Abstract Rare earth elements, key to many high-technology applications, are regularly making headlines, even in general public newspapers. Will the word run short of rare earth elements and of the many applications that rest on their use? In support to French and European Union policy making, as well as in support to industrial clients, BRGM is monitoring rare earth markets from the supply and the demand sides, as well as for technological shifts that drive them. Not every rare earth element is effectively rare and there are well over 400 ongoing rare earth exploration projects worldwide. Nevertheless, some rare earth elements such as dysprosium, europium and terbium are rare, in high and fast growing demand; as they either are indispensable to the production of Fe-B-Nd (Dy) permanent magnets, the highest performance magnetic material currently being available at industrial scale, or to the production of phosphors essential to the production of fluorescent compact, energy saving, light bulbs and video displays. At the current 10% compound annual growth rate of the demand for these elements, the question arises of their the future availability. Among the many rare-earth bearing minerals apatite is of particular interest as a potential source of rare earth elements, as it is a widespread mineral, forming huge deposits such as the sedimentary and magmatic phosphate deposits. An overview of the potential of sedimentary phosphate deposits as an important source for future rare earth production is presented and discussed. In addition to knowledge about the distribution and concentration of individual rare earth elements in sedimentary phosphate deposits, it is also necessary to understand the partitioning of the individual elements between phosphogypsum and phosphoric acid in the fertilizer production process, as well as available technologies to recover and separate individual rare earth elements from these materials. This could pave the way to the generation of extra added-value for phosphate producers, and to the broadening of the international production base of rare earth elements in high demand by the global economy.

Patrice Christmann

2014-01-01T23:59:59.000Z

3

Portable X-ray fluorescence in the assessment of rare earth element-enriched sedimentary phosphate deposits  

Science Journals Connector (OSTI)

...fluorescence in the assessment of rare earth element-enriched sedimentary...considered as potential sources of rare earth elements (REEs) and...phosphate deposit|pulps|rare earth elements|recalibration...into effluents associated with phosphogypsum stockpiles and could pose a...

G.J. Simandl; R. Fajber; S. Paradis

4

Estimate of fine sediment deposit dynamics on a gravel bar using photography analysis  

E-Print Network (OSTI)

Estimate of fine sediment deposit dynamics on a gravel bar using photography analysis B. CAMENEN1 , M. JODEAU2 , and M. JABALLAH3 Abstract Three different methods to analyse fine sediment deposits the ground. These methods were used to estimate the surface of fine sediment deposits before and after

Paris-Sud XI, Université de

5

Estimated environmental radionuclide transfer and deposition into outdoor swimming pools  

Science Journals Connector (OSTI)

Abstract In 2011, a large radioactive discharge occurred at the Fukushima Daiichi nuclear power plant. This plant is located within a climatically temperate region where outdoor swimming pools are popular. Although it is relatively easy to decontaminate pools by refilling them with fresh water, it is difficult to maintain safe conditions given highly contaminated diurnal dust falls from the surrounding contaminated ground. Our objectives in this paper were to conduct daily radioactivity measurements, to determine the quantity of radioactive contaminants from the surrounding environment that invade outdoor pools, and to investigate the efficacy of traditional pool cleaners in removing radioactive contaminants. The depositions in the paper filterable particulates ranged from 0 to 62,5 Bq/m2/day, with the highest levels found in the southern Tohoku District containing Fukushima Prefecture and in the Kanto District containing Tokyo Metro. They were approximately correlated with the ground contamination. Traditional pool cleaners eliminated 99% of contaminants at the bottom of the pool, reducing the concentration to 41 Bq/m2 after cleaning. Authors recommended the deposition or the blown radionuclides into outdoor swimming pools must be considered into pool regulations when the environments exactly polluted with radionuclides.

Kazumi Tagami; Izumi Nagata; Keisuke Sueki

2014-01-01T23:59:59.000Z

6

Global In-Use Stocks of the Rare Earth Elements: A First Estimate  

Science Journals Connector (OSTI)

Since 1990, China has played a dominant role in REE mining production; other countries are almost completely dependent on imports from China with respect to rare earth resources. ... The stages within the system are linked to each other by flows, the system within a particular cycle is associated with other regions by imports and exports at each stage, and all of the rare earth elements are linked through a common processing stage. ... China has traditionally employed rare earths in applications such as metallurgical additives and alloys, petroleum refining, and glass and ceramics, but new applications in China have grown significantly since 2002. ...

Xiaoyue Du; T. E. Graedel

2011-03-25T23:59:59.000Z

7

The impact of trade costs on rare earth exports : a stochastic frontier estimation approach.  

SciTech Connect

The study develops a novel stochastic frontier modeling approach to the gravity equation for rare earth element (REE) trade between China and its trading partners between 2001 and 2009. The novelty lies in differentiating betweenbehind the border' trade costs by China and theimplicit beyond the border costs' of China's trading partners. Results indicate that the significance level of the independent variables change dramatically over the time period. While geographical distance matters for trade flows in both periods, the effect of income on trade flows is significantly attenuated, possibly capturing the negative effects of financial crises in the developed world. Second, the total export losses due tobehind the border' trade costs almost tripled over the time period. Finally, looking atimplicit beyond the border' trade costs, results show China gaining in some markets, although it is likely that some countries are substituting away from Chinese REE exports.

Sanyal, Prabuddha; Brady, Patrick Vane; Vugrin, Eric D.

2013-09-01T23:59:59.000Z

8

Estimation of atmospheric deposition in coastal Jalisco, western Mexico, using an epiphytic plant (Tillandsia recurvata L. Bromeliaceae)  

E-Print Network (OSTI)

Ttllandsia recurvata was used as a biomonitor to ographics. estimate the trace element atmospheric deposition in a tropical dry forest of the Pacific coast of Jalisco, in western Mexico. The plant samples were initially collected gem a population...

Sahagun Godinez, Eduardo

2012-06-07T23:59:59.000Z

9

Dry Deposition Velocity Estimation for the Savannah River Site: Part 1 – Parametric Analysis  

SciTech Connect

Values for the dry deposition velocity of airborne particles were estimated with the GENII Version 2.10 computer code for the Savannah River site using assumptions about surface roughness parameters and particle size and density. Use of the GENII code is recommended by the U.S. Department of Energy for this purpose. Meteorological conditions evaluated include atmospheric stability classes D, E, and F and wind speeds of 0.5, 1.0, 1.5, and 3.0 m/s. Local surface roughness values ranging from 0.03 to 2 meters were evaluated. Particles with mass mean diameters of 1, 5, and 10 microns and densities of 1, 3, and 5 g/cm3 were evaluated.

Napier, Bruce A.

2012-01-16T23:59:59.000Z

10

Estimation of aerial deposition and foliar uptake of xenobiotics: Assessment of current models  

SciTech Connect

This report reviews existing mathematical and/or computer simulation models that estimate xenobiotic deposition to and transport through (both curricular and stomatal) vegetative surfaces. The report evaluates the potential for coupling the best of those models to the existing Uptake, Translocation, Accumulation, and Biodegradation model to be used for future xenobiotic exposure assessments. Here xenobiotic compounds are defined as airborne contaminants, both organic and gaseous pollutants, that are introduced into the environment by man. Specifically this document provides a detailed review of the state-of-the-art models that addressed aerial deposition of particles and gases to foliage; foliar and cuticular transport, metabolism, and uptake of organic xenobiotics; and stomatal transport of gaseous and volatile organic xenobiotic pollutants. Where detailed information was available, parameters for each model are provided on a chemical by chemical as well as species by species basis. Sufficient detail is provided on each model to assess the potential for adapting or coupling the model to the existing UTAB plant exposure model. 126 refs., 6 figs., 10 tabs.

Link, S.O.; Fellows, R.J.; Cataldo, D.A.; Droppo, J.G.; Van Voris, P.

1987-10-01T23:59:59.000Z

11

Dry Deposition Velocity Estimation for the Savannah River Site: Part 2 -- Parametric and Site-Specific Analysis  

SciTech Connect

Values for the dry deposition velocity of airborne particles were estimated with the GENII Version 2.10.1 computer code for the Savannah River site using assumptions about surface roughness parameters and particle size and density. Use of the GENII code is recommended by the U.S. Department of Energy for this purpose. Meteorological conditions evaluated include atmospheric stability classes D, E, and F and wind speeds of 0.5, 1.0, 1.5, and 2.0 m/s. Local surface roughness values ranging from 0.03 to 2 meters were evaluated. Particles with mass mean diameters of 1, 5, and 10 microns and densities of 1, 3, 4, and 5 g/cm3 were evaluated. Site specific meteorology was used to predict deposition velocity for Savannah River conditions for a range of distances from 670 to 11,500 meters.

Napier, Bruce A.; Rishel, Jeremy P.; Cook, Kary M.

2013-09-12T23:59:59.000Z

12

ANEMOS: A computer code to estimate air concentrations and ground deposition rates for atmospheric nuclides emitted from multiple operating sources  

SciTech Connect

This code estimates concentrations in air and ground deposition rates for Atmospheric Nuclides Emitted from Multiple Operating Sources. ANEMOS is one component of an integrated Computerized Radiological Risk Investigation System (CRRIS) developed for the US Environmental Protection Agency (EPA) for use in performing radiological assessments and in developing radiation standards. The concentrations and deposition rates calculated by ANEMOS are used in subsequent portions of the CRRIS for estimating doses and risks to man. The calculations made in ANEMOS are based on the use of a straight-line Gaussian plume atmospheric dispersion model with both dry and wet deposition parameter options. The code will accommodate a ground-level or elevated point and area source or windblown source. Adjustments may be made during the calculations for surface roughness, building wake effects, terrain height, wind speed at the height of release, the variation in plume rise as a function of downwind distance, and the in-growth and decay of daughter products in the plume as it travels downwind. ANEMOS can also accommodate multiple particle sizes and clearance classes, and it may be used to calculate the dose from a finite plume of gamma-ray-emitting radionuclides passing overhead. The output of this code is presented for 16 sectors of a circular grid. ANEMOS can calculate both the sector-average concentrations and deposition rates at a given set of downwind distances in each sector and the average of these quantities over an area within each sector bounded by two successive downwind distances. ANEMOS is designed to be used primarily for continuous, long-term radionuclide releases. This report describes the models used in the code, their computer implementation, the uncertainty associated with their use, and the use of ANEMOS in conjunction with other codes in the CRRIS. A listing of the code is included in Appendix C.

Miller, C.W.; Sjoreen, A.L.; Begovich, C.L.; Hermann, O.W.

1986-11-01T23:59:59.000Z

13

Technique for the Estimation of Surface Temperatures from Embedded Temperature Sensing for Rapid, High Energy Surface Deposition  

SciTech Connect

Temperature histories on the surface of a body that has been subjected to a rapid, high-energy surface deposition process can be di#14;fficult to determine, especially if it is impossible to directly observe the surface or attach a temperature sensor to it. In this report, we explore two methods for estimating the temperature history of the surface through the use of a sensor embedded within the body very near to the surface. First, the maximum sensor temperature is directly correlated with the peak surface temperature. However, it is observed that the sensor data is both delayed in time and greatly attenuated in magnitude, making this approach unfeasible. Secondly, we propose an algorithm that involves fitting the solution to a one-dimensional instantaneous energy solution problem to both the sensor data and to the results of a one-dimensional CVFEM code. This algorithm is shown to be able to estimate the surface temperature {+-}~20#14;{degrees}C.

Watkins, Tyson R.; Schunk, Peter Randall; Roberts, Scott A.

2014-07-01T23:59:59.000Z

14

Analysis of forest environmental measurements to estimate parameters of microclimate and air-pollution deposition-velocity models  

SciTech Connect

A method is described for estimating flux densities and deposition of gaseous pollutants for a period of a year or more, using data collected for a period of a few days. The estimates are based on models which characterize the transfer of gases from the atmosphere to the vegetation as a series of resistances and then use linear statistical submodels based on experimental data to relate the resistances to the surrounding environment. The models are shown to fit the experimental data reasonably well. Annual values calculated for a young loblolly pine plantation were: evaporation 63.2 cm, carbon dioxide exchange 31.5 t/ha, and sulfur dioxide exchange 120 gm/ha. 17 references.

Murphy, Jr, C E; Lorenz, R

1983-01-01T23:59:59.000Z

15

Online estimation of wax deposition thickness in single-phase sub-sea pipelines based on acoustic chemometrics: A feasibility study  

Science Journals Connector (OSTI)

Wax deposition in sub-sea oil producing pipelines is a concern to the oil producing companies. The deposition of wax in pipelines can cause serious economic implications if not monitored and controlled. Several researchers have developed models and investigated the deposition of wax in crude oil pipelines. As of today, there is no off the shelf instrument available for reliable online estimation of the wax deposition thickness in sub-sea pipelines. Acoustic chemometrics was applied to investigate the potential for online estimation of wax deposition thickness in sub-sea pipelines. This feasibility study was carried out as a so called piggy back on experiments performed at Statoil research centre in Porsgrunn, Norway with real crude oil or waxy gas condensate. The first investigations focused on the repeatability of the acoustic chemometric technique followed by online prediction of the wax deposition thickness in a single-phase oil flow pipeline. A partial least squares regression model was calibrated and validated with a totally independent data set. The calibrated model had a root mean squared error of prediction of 0.28 mm with a final wax deposition thickness of 3.36 mm, a slope of 0.91 and R2 of 0.83 which were satisfactory results. The effect of varying oil flow rates on the wax deposition thickness was also investigated. The preliminary results showed the need for further investigations based on a robust experimental design and sample pre-processing. The general conclusion that can be drawn from this feasibility study was that the potential of adapting the acoustic chemometric technique for online estimation of the wax deposition thickness exist and must be further investigated.

Maths Halstensen; Benjamin Kaku Arvoh; Lene Amundsen; Rainer Hoffmann

2013-01-01T23:59:59.000Z

16

Thermally deposited Ag-doped CdS thin film transistors with high-k rare-earth oxide Nd2O3 as gate dielectric  

Science Journals Connector (OSTI)

The performance of thermally deposited CdS thin film transistors doped with Ag has been reported. Ag-doped CdS thin films have been prepared using chemical...2O3 has been used as gate insulator. The thin film tra...

P. Gogoi

2013-03-01T23:59:59.000Z

17

Rare Earth Tungsten Bronzes  

Science Journals Connector (OSTI)

Rare Earth Tungsten Bronzes ... Trivalent Rare Earth Ion Conduction in the Rare Earth Tungstates with the Sc2(WO4)3-Type Structure ... Trivalent Rare Earth Ion Conduction in the Rare Earth Tungstates with the Sc2(WO4)3-Type Structure ...

Werner Ostertag

1966-05-01T23:59:59.000Z

18

Perspectives on Deposition Velocity  

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

Deposition Deposition Velocity ... Going down the rabbit hole to explain that sinking feeling Brian DiNunno, Ph.D. Project Enhancement Corporation June 6 th , 2012 Discussion Framework  Development of the HSS Deposition Velocity Safety Bulletin  Broader discussion of appropriate conservatism within dispersion modeling and DOE-STD-3009 DOE-STD-3009 Dose Comparison "General discussion is provided for source term calculation and dose estimation, as well as prescriptive guidance for the latter. The intent is that calculations be based on reasonably conservative estimates of the various input parameters." - DOE-STD-3009, Appendix A.3 DOE-STD-3009 Dispersion

19

Rare muon processes  

SciTech Connect

The status of rare muon processes as tests of the standard model is reviewed with the emphasis on results that are expected from experiments in the near future.

Cooper, M.D.; The MEGA Collaboration

1993-05-01T23:59:59.000Z

20

Rare muon processes  

SciTech Connect

The status of rare muon processes as tests of the standard model is reviewed with the emphasis on results that are expected from experiments in the near future.

Cooper, M.D.

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Rare Earth Elements:  

Science Journals Connector (OSTI)

...Energy-efficient compact fluorescent lamps (CFLs) use phosphor...LEDs), and compact fluorescent lamps (CFLs) all utilize...conventional incandescent light bulbs with CFLs in numerous...rare earth industry and led to significant price...previous year. This led to significant price...

Gareth P. Hatch

22

Rare hadronic B decays  

E-Print Network (OSTI)

Rare hadronic B-meson decays allow us to study CP violation. The class of B decays final states containing two vector mesons provides a rich set of angular correlation observables to study. This article reviews some of the recent experimental results from the BaBar and Belle collaborations.

A. J. Bevan

2006-06-02T23:59:59.000Z

23

Bakken and other Devonian-Mississippian petroleum source rocks, northern Rocky Mtns.-Williston basin: Depositional and burial history and maturity estimations  

SciTech Connect

The three-member Devonian-Mississippian Bakken-Exshaw organic-rich shaly facies is widely distributed in the northern U.S. and southern Canadian Cordillera. Equivalent facies are also present as far south as Utah and Nevada. Paleogeographically, these rocks thin markedly or pinchout to the west approximately along the Devonian-Mississippian carbonate reef-mound belt of the Cordilleran shelf margin. Although these rocks reach maximum organic richness approximately at the Devonian-Carboniferous transition, similar but somewhat less organic-rich Bakken-like beds are also present in underlying Upper Devonian and overlying Lower Carboniferous carbonate depositional cycles. At least ten cycles are identified in the underlying Duperow and Jefferson Formations, characterized by basal organic-rich Bakken-like shale or shaly carbonate that grades upward into carbonate mound or reefal beds, overlain by evaporite or solution breccia. Cycles in the overlying Lodgepole and Mission Canyon Formations, as many as 10-12 in number, are similar except that the carbonates are composed of algal-oolith, crinoid, or mixed skeletal beds, and end-cycle evaporitic units are less prevalent in the lower cycles. These dark shaly beds are the most important source of hydrocarbon reserves in Montana and the Williston basin. Maximum net thickness of the Devonian-Mississippian organic-rich facies is in the Williston basin. However, variable thicknesses of these potential source rocks is present in parts of Montana as far west as the thrust belt. Burial history studies suggest that in some areas these rocks are probably thermally immature. However, in much of the area original burial depths are sufficient for them to reach the thermally mature stage, and therefore are of importance to further exploration efforts in the Devonian-Mississippian Madison-Duperow-Jefferson Formations.

Peterson, J.A. [Univ. of Montana, Missoula, MT (United States)

1996-06-01T23:59:59.000Z

24

Pseudocrystalline model of the magnetic anisotropy in amorphous rare-earth–transition-metal thin films  

Science Journals Connector (OSTI)

A pseudocrystalline model is proposed to explain the occurrence of perpendicular anisotropy in amorphous rare-earth–transition metal (R-T) thin films. It is based on the central hypothesis that during layer-by-layer growth small planar hexagonal units are formed defining on average a preferential axis perpendicular to the film plane. The units are similar in structure to relaxed crystalline ones and are estimated to typically comprise six rare-earth atoms. They are regarded as an idealized model of the short-range order and are consistent with the known nearest-neighbor R-T and T-T coordination numbers in the amorphous state. This model is able to explain the known experimental results concerning the influence of composition, substrate temperature, annealing, and bombardment effects during sputter deposition on the magnetic anisotropy of thin amorphous rare-earth–transition-metal films of the system (Nd, Tb, Dy) (Fe, Co), as well as the destruction of this anisotropy by additives.

D. Mergel; H. Heitmann; P. Hansen

1993-01-01T23:59:59.000Z

25

Ames Lab 101: Rare Earths  

ScienceCinema (OSTI)

"Mr. Rare Earth," Ames Laboratory scientist Karl Gschneidner Jr., explains the importance of rare-earth materials in many of the technologies we use today -- ranging from computers to hybrid cars to wind turbines. Gschneidner is a world renowned rare-earths expert at the U.S. Department of Energy's Ames Laboratory.

Gschneidner, Karl

2012-08-29T23:59:59.000Z

26

Rare-Earth Research Meeting  

Science Journals Connector (OSTI)

Rare-Earth Research Meeting ... The 27th Rare Earth Research Conference will take place at the Village at Squaw Valley in Olympic Valley, Calif.—the site of the 1960 Winter Olympic Games—on June 22–26, 2014. ... Rare-earth element research spans several disciplines and brings together chemists, engineers, physicists, and materials scientists. ...

SOPHIE ROVNER

2013-12-23T23:59:59.000Z

27

Deposition Process  

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

Pulsed Plasma Processing Pulsed Plasma Processing NEW: Downloadable: Invited Talk "Pulsed Metal Plasmas," presented at the 2006 AVS Meeting, San Francisco, California, November 15, 2006. (PDF, file size 8 MB). Plasma Sources for Window Coatings Deposition processes for low-emittance and solar control coatings can be improved through the use of advanced plasma technology developed at LBNL. A new type of constricted glow-discharge plasma source was selected for the 1997 R&D 100 Award. Invented by LBNL researchers Andre Anders, Mike Rubin, and Mike Dickinson, the source was designed to be compatible with industrial vacuum deposition equipment and practice. Construction is simple, rugged and inexpensive. It can operate indefinitely over a wide range of chamber pressure without any consumable parts such as filaments or grids. Several different gases including Argon, Oxygen and Nitrogen have been tested successfully.

28

Pulsed Laser Deposition | EMSL  

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

Pulsed Laser Deposition Pulsed Laser Deposition EMSL's pulsed laser deposition (PLD) system is designed for epitaxial growth of oxide, ceramic, or synthetic mineral thin films and...

29

The Colorado Rare Plant Technical Committee Rare Plant Symposium  

E-Print Network (OSTI)

The Colorado Rare Plant Technical Committee presents: 4th Annual Rare Plant Symposium Sponsored by: Colorado Native Plant Society University of Colorado Herbarium US Fish and Wildlife Service Colorado: G2G3/S2S3 Global distribution: Colorado (Larimer and Boulder counties). Possibly extending

30

High efficiency rare-earth emitter for thermophotovoltaic applications  

SciTech Connect

In this work, we propose a rare-earth-based ceramic thermal emitter design that can boost thermophotovoltaic (TPV) efficiencies significantly without cold-side filters at a temperature of 1573?K (1300?°C). The proposed emitter enhances a naturally occurring rare earth transition using quality-factor matching, with a quarter-wave stack as a highly reflective back mirror, while suppressing parasitic losses via exponential chirping of a multilayer reflector transmitting only at short wavelengths. This allows the emissivity to approach the blackbody limit for wavelengths overlapping with the absorption peak of the rare-earth material, while effectively reducing the losses associated with undesirable long-wavelength emission. We obtain TPV efficiencies of 34% using this layered design, which only requires modest index contrast, making it particularly amenable to fabrication via a wide variety of techniques, including sputtering, spin-coating, and plasma-enhanced chemical vapor deposition.

Sakr, E. S.; Zhou, Z.; Bermel, P., E-mail: pbermel@purdue.edu [Birck Nanotechnology Center, School of Electrical and Computer Engineering, Purdue University, 1205 W. State St., West Lafayette, Indiana 47907 (United States)

2014-09-15T23:59:59.000Z

31

Methods for predicting wax precipitation and deposition  

SciTech Connect

Removal of wax from wells and flowlines can account for significant additional operating costs. To evaluate these potential costs, the operating conditions that allow waxes to precipitate in the wellbore must be identified, and deposition rates must be estimated to determine the costs associated with removal of wax deposits. Presented in this paper are laboratory and analytic methods that can be used to estimate both the critical operating conditions and the deposition rates. The laboratory tests and analysis presented may be used to characterize any type of oil.

Weingarten, J.S.; Euchner, J.A.

1988-02-01T23:59:59.000Z

32

ENVIRONMENTAL MICROBIOLOGY The Impact of Simulated Sulfate Deposition  

E-Print Network (OSTI)

ENVIRONMENTAL MICROBIOLOGY The Impact of Simulated Sulfate Deposition on Peatland Testate Amoebae of microbial biomass in Sphagnum peatlands (Gilbert et al. [14] estimate 14% and Mitchell et al. [27] estimate

Gauci, Vincent

33

UK bridge to rare tongues  

E-Print Network (OSTI)

  THE TELEGRAPH - About Us - Advertise - Feedback - Contact Us     /div> 2 Front Page > Nation > Story UK bridge to rare tongues London, Dec. 12 (PTI): Cambridge University has launched a project to provide public access to languages...

Anon.

2010-12-13T23:59:59.000Z

34

PRESS RELEASE RARE FRUIT CONFERENCE  

E-Print Network (OSTI)

RELEASE RARE FRUIT CONFERENCE July 9 - 13, 2014 Sponsored by the Tropical Fruit & Vegetable Society of the Redland & the Fruit & Spice Park 24801 SW 187th Avenue, Homestead, Florida

Jawitz, James W.

35

A Rare Isolated Trapezoid Fracture  

E-Print Network (OSTI)

wrist in suggested scaphoid fracture. Acta Radiol. 1988;29:Rare isolated trapezoid fracture: a case report. Hand. 2008;suspect and diagnose this fracture. 2,8 REFERENCES 1. Papp

Afifi, Negean; Lu, Jenny J

2011-01-01T23:59:59.000Z

36

HYDROLOGY AND GEOMORPHOLOGY OF A RARE FLOOD, BLACKBURN FORK,  

E-Print Network (OSTI)

-prediction. � Discharge measurements based on boulder size appear to give more reasonable estimates of flood dischargeHYDROLOGY AND GEOMORPHOLOGY OF A RARE FLOOD, BLACKBURN FORK, PUTNAM-JACKSON COUNTIES 18 AUGUST 2010) #12;Source: NOAA 17-18 Aug 2010 #12;#12;FLOOD DAMAGE #12;#12;#12;#12;#12;#12;#12;#12;#12;4 bridges

Hart, Evan

37

Silicon Shovels for Rare-Earth Solutions  

Office of Science (SC) Website

the uses for rare-earths, but the mined and processed totals are falling short. Green energy technology needs rare earth materials for wind turbines, rechargeable...

38

Estimating Methods  

Directives, Delegations, and Requirements

Based on the project's scope, the purpose of the estimate, and the availability of estimating resources, the estimator can choose one or a combination of techniques when estimating an activity or project. Estimating methods, estimating indirect and direct costs, and other estimating considerations are discussed in this chapter.

1997-03-28T23:59:59.000Z

39

Sandy Depositional Systems  

Science Journals Connector (OSTI)

Why is the study of sandy depositional systems central to the understanding of sand and sandstone? From earliest times geologists have wanted to know where and under what conditions a sandstone was deposited—t...

F. J. Pettijohn; Paul Edwin Potter; Raymond Siever

1987-01-01T23:59:59.000Z

40

An Equilibrium Model of Rare Event Premia  

E-Print Network (OSTI)

In this paper, we study the asset pricing implication of imprecise knowledge about rare events. Modeling rare events as jumps in the aggregate endowment, we explicitly solve the equilibrium asset prices in a pure-exchange ...

Liu, Jun

2002-08-12T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Rare Iron Oxide in Ancient Chinese Pottery  

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

Rare Iron Oxide in Ancient Chinese Pottery Rare Iron Oxide in Ancient Chinese Pottery Print Friday, 26 September 2014 14:37 Jian ware (or Tenmoku) ceramic bowls, famous for their...

42

Pt nanoparticles modified by rare earth oxides: Electronic effect and influence to catalytic hydrogenation of 3-phenoxybenzaldehyde  

SciTech Connect

Graphical abstract: - Highlights: • The rare earths modified Pt/Al{sub 2}O{sub 3} were prepared by colloidal deposition method. • Modification of Pt by the rare earth enhanced catalytic hydrogenation activity. • The activity improvement is due to electron interaction between Pt and rare earth. • The hydrogenation mechanism of rare earth modified Pt catalyst was proposed. - Abstract: The rare earth elements (La, Ce, Nd, Sm, Pr, and Gd) modified Pt/Al{sub 2}O{sub 3} catalysts were prepared by the colloidal deposition and chemical reduction methods, respectively. Pt nanoparticles with average size 3 ± 0.5 nm were uniformly dispersed on the surface of Al{sub 2}O{sub 3} for the samples prepared by the colloidal deposition method, which exhibited higher activities in the hydrogenation of 3-phenoxybenzadehyde than the corresponding samples prepared by chemical reduction method. Moreover, except Gd, the catalysts modified by rare earth elements showed better catalytic performance than unmodified Pt/Al{sub 2}O{sub 3}. For Pt–Ce/Al{sub 2}O{sub 3} catalyst, when the weight percent of Pt and Ce was 0.5 and 0.25, respectively, the hydrogenation conversion of 3-phenoxybenzaldehyde was 97.3% after 6 h reaction. This activity improvement is due to the electronic interaction between Pt and rare earth elements, which was investigated by X-ray photoelectron spectroscopy.

Mou, Zhigang; Han, Ming; Li, Gang; Du, Yukou [College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 (China); Yang, Ping, E-mail: pyang@suda.edu.cn [College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123 (China); Zhang, Hailu [Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123 (China); Deng, Zongwu, E-mail: zwdeng2007@sinano.ac.cn [Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123 (China)

2013-11-15T23:59:59.000Z

43

Crystal Fields in Dilute Rare-Earth Metals Obtained from Magnetization Measurements on Dilute Rare-Earth Alloys  

Science Journals Connector (OSTI)

Crystal field parameters of Tb, Dy, and Er in Sc, Y, and Lu are summarized. These parameters are obtained from magnetization measurements on dilute single crystals, and successfully checked by a number of different methods. The crystal field parameters vary unpredictably with the rare-earth solute. B40, B60, and B66 are similar in Y and Lu. Crystal field parameters for the pure metals Tb, Dy, and Er are estimated from the crystal fields in Y and Lu.

P. Touborg and J. Høg

1974-09-23T23:59:59.000Z

44

The Colorado Rare Plant Technical Committee presents: Colorado Rare Plant Symposium  

E-Print Network (OSTI)

The Colorado Rare Plant Technical Committee presents: 5th Annual Colorado Rare Plant Symposium September 5, 2008 Montrose, Colorado Sponsored by: Colorado Rare Plant Technical CommitteeColorado Rare Plant Technical Committee Colorado Native Plant Society University of Colorado Herbarium US Fish

45

The Colorado Rare Plant Technical Committee presents: 2nd Annual Rare Plant  

E-Print Network (OSTI)

The Colorado Rare Plant Technical Committee presents: 2nd Annual Rare Plant Symposium Friday, September 16th, 2005 8am-noon: 2nd Annual Colorado Rare Plant Symposium (Discuss G1 species) 6:30-7:30pm with the Colorado Native Plant Society's Annual Meeting Sponsored by: #12;The Second Annual Colorado Rare Plant

46

direct_deposit_111609  

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

PROTECT YOUR BANKING INFORMATION: PROTECT YOUR BANKING INFORMATION: DO NOT complete this form until you are ready to submit it to the Payroll Department. DIRECT DEPOSIT REQUEST Directions: 1. Provide required information neatly, legibly; 2. If Checking Account Direct Deposit, include a voided check. a. DO NOT submit a deposit slip! 3. If Savings Account Direct Deposit, include a copy of savings card. 4. Sign this form; 5. Inter-office mail it to Craft Payroll at "P238." DIRECT DEPOSITION AUTHORIZATION I hereby authorize Los Alamos National Laboratory, hereinafter called The Laboratory, to initiate credit entries and, if necessary, debit entries and adjustments for any credit entries in error to my account listed on this form. If deposit is for:

47

Spores from Devonian Deposits  

Science Journals Connector (OSTI)

... IN a well-illustrated paper on "Spores from Devonian Deposits, Mimerdalen, Spitsbergen" (Norsk. Polarinstitutt Skrifter, No. 132, 1964), Jorunn Os Vigran deals with the dispersed ...

1965-06-05T23:59:59.000Z

48

EMSL - ion deposition  

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

deposition en Physical Properties of Ambient and Laboratory-Generated Secondary Organic Aerosol. http:www.emsl.pnl.govemslwebpublicationsphysical-properties-ambient-and-labora...

49

EMSL - Deposition and Microfabrication  

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

ion beam for nanolithography and deposition and manipulation of structures at the nano scale* Microfabrication suite for designing and etching complex patterns into varied...

50

Chapter 4 - Recycling Rare Metals  

Science Journals Connector (OSTI)

Abstract The industrial system now utilizes many more elements, especially rare metals, than was the case even a half century ago. Most are not mined for themselves but are obtained as by-products or “hitchhikers” of the more familiar industrial metals, such as iron, aluminum, copper, nickel, and zinc. This imposes a limit on the production of by-product metals. But in some cases, demand may increase much faster than new supply. This suggests a need for recycling. But the uses of these metals are often in products, such as cell phones, that are mass-produced but where the amount in each individual product is very small. Some uses are also inherently dissipative. This makes recycling very difficult in principle. It constitutes a serious challenge for the future economy. Prices will rise.

Robert U. Ayres; Gara Villalba Méndez; Laura Talens Peiró

2014-01-01T23:59:59.000Z

51

Rare Earth Metals and Alloys | Ames Laboratory  

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

Mpc » Rare Earth Metals and Alloys Mpc » Rare Earth Metals and Alloys Rare Earth Metals and Alloys Terbium (Tb) and Cerium (Ce) phosphors in your computer screen allow you to see GREEN. Europium (Eu) is the source of the RED light and BLUE emitted by our display. The Ames Laboratory has been actively involved in the preparation of very pure rare earth metals since the early 1940's when Dr. Frank H. Spedding and his group of pioneers developed the ion-exchange process, a technique that separates the "fraternal fifteen" plus yttrium and scandium. As a result of this and subsequent work, high-purity oxides are available from which high-purity rare earth metals can be prepared. In most cases, the rare earth oxides are first converted to their respective fluorides and are then reduced metallothermicaly on a kilogram

52

Solution deposition assembly  

DOE Patents (OSTI)

Methods and devices are provided for improved deposition systems. In one embodiment of the present invention, a deposition system is provided for use with a solution and a substrate. The system comprises of a solution deposition apparatus; at least one heating chamber, at least one assembly for holding a solution over the substrate; and a substrate curling apparatus for curling at least one edge of the substrate to define a zone capable of containing a volume of the solution over the substrate. In another embodiment of the present invention, a deposition system for use with a substrate, the system comprising a solution deposition apparatus; at heating chamber; and at least assembly for holding solution over the substrate to allow for a depth of at least about 0.5 microns to 10 mm.

Roussillon, Yann; Scholz, Jeremy H; Shelton, Addison; Green, Geoff T; Utthachoo, Piyaphant

2014-01-21T23:59:59.000Z

53

Improved method for preparing rare earth sesquichalcogenides  

DOE Patents (OSTI)

An improved method for the preparation of high purity rare earth sesquichalcogenides is described. The rare earth, as one or more pieces of the metal, is sealed under a vacuum with a stoichiometric amount of sulfur or selenium and a small amount of iodine into a quartz reaction vessel. The sealed vessel is then heated to above the vaporization temperature of the chalcogen and below the melting temperature of the rare earth metal and maintained until the product has been formed. The iodine is then vaporized off leaving a pure product. The rare earth sulfides and selenides thus formed are useful as semiconductors and as thermoelectric generators. 3 tables.

Takeshita, T.; Beaudry, B.J.; Gschneidner, K.A. Jr.

1982-04-14T23:59:59.000Z

54

Cost Estimator  

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

A successful candidate in this position will serve as a senior cost and schedule estimator who is responsible for preparing life-cycle cost and schedule estimates and analyses associated with the...

55

Rare is frequent and frequent is costly: rare diseases as a challenge for health care systems  

Science Journals Connector (OSTI)

Of 30,000 known diseases about 6,000–7,000 are defined as rare diseases, also commonly known as orphan diseases [1]. Within the European Union (EU), rare diseases are specified as indications with a prevalence of...

J.-Matthias Graf von der Schulenburg…

2014-10-01T23:59:59.000Z

56

Diversity of accessory minerals in rare-metal-rare earth pegmatites  

Science Journals Connector (OSTI)

About 150 accessory minerals have been identified in the rare-metal-rare earth pegmatites, including 36 OH-, F- and H2 O-bearing silicates, 27 volatile-free silicates, 31 complex oxides, and 17 carbonates. Most a...

B. M. Shmakin

2008-12-01T23:59:59.000Z

57

The Colorado Rare Plant Technical Committee presents  

E-Print Network (OSTI)

The Colorado Rare Plant Technical Committee presents: 3rd Annual Rare Plant Symposium Sponsored by: Colorado Native Plant Society University of Colorado Herbarium US Fish and Wildlife Service Colorado and Eastern Colorado (Las Animas, Weld, Kit Carson, Huerfano, Pueblo, Otero, Prowers, Fremont, and El Paso

58

Ames Lab 101: Rare-Earth Recycling  

SciTech Connect

Recycling keeps paper, plastics, and even jeans out of landfills. Could recycling rare-earth magnets do the same? Perhaps, if the recycling process can be improved. Scientists at the U.S. Department of Energy's Ames Laboratory are working to more effectively remove the neodymium, a rare earth, from the mix of other materials in a magnet.

Ryan Ott

2012-09-05T23:59:59.000Z

59

Stark spectroscopy on rare gas atoms  

E-Print Network (OSTI)

Stark spectroscopy on rare gas atoms PROEFSCHRIFT ter verkrijging van de graad van doctor aan de-DATA LIBRARY TECHNISCHE UNIVERSITEIT EINDHOVEN Jiang, Tao Stark spectroscopy on rare gas atoms / by Tao Jiang / gasontladingen Subject headings : plasma diagnostics / Stark effect / optogalvanic spectroscopy / atomic emission

Eindhoven, Technische Universiteit

60

Chemical Properties of the Rare Gases  

Science Journals Connector (OSTI)

... of argon of about 100 atm. I have already shown by an independent method1 that radon, too, forms a hydrate which is much more stable than those of other rare ... , forms a hydrate which is much more stable than those of other rare gases. Radon is easily held by crystals of sulphur dioxide hydrates, when they are formed from ...

B. A. NIKITIN

1937-10-09T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Multicanonical sampling of rare events in random matrices  

SciTech Connect

A method based on multicanonical Monte Carlo is applied to the calculation of large deviations in the largest eigenvalue of random matrices. The method is successfully tested with the Gaussian orthogonal ensemble, sparse random matrices, and matrices whose components are subject to uniform density. Specifically, the probability that all eigenvalues of a matrix are negative is estimated in these cases down to the values of {approx}10{sup -200}, a region where simple random sampling is ineffective. The method can be applied to any ensemble of matrices and used for sampling rare events characterized by any statistics.

Saito, Nen; Iba, Yukito; Hukushima, Koji [Graduate School of Science and Cybermedia Center, Osaka University, Toyonaka, Osaka 560-0043 (Japan); Institute of Statistical Mathematics, 10-3 Midorimachi, Tachikawa, Tokyo 190-8562 (Japan); Department of Basic Science, University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo 153-8902 (Japan)

2010-09-15T23:59:59.000Z

62

EMSL: Capabilities: Deposition and Microfabrication  

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

Deposition and Microfabrication Deposition and Microfabrication Additional Information Meet the Deposition and Microfabrication Experts Related EMSL User Projects Deposition and Microfabrication Tools are Applied to all Science Themes Deposition and Microfabrication brochure Designed to augment research important to a variety of disciplines, EMSL's Deposition and Microfabrication Capability tackles serious scientific challenges from a microscopic perspective. From deposition instruments that emphasize oxide films and interfaces to a state-of-the-art microfabrication suite, EMSL has equipment to tailor surfaces, as diverse as single-crystal thin films or nanostructures, or create the microenvironments needed for direct experimentation at micron scales. Users benefit from coupling deposition and microfabrication applications

63

Electrophoretic deposition of biomaterials  

Science Journals Connector (OSTI)

...Wilson 2003). The use of citric acid as a dispersant allowed the deposition of thin...poly(lactic-co-glycolic acid) (PLGA) nanoparticles embedded...stent for local drug delivery. Polyacrylic acid was used as surfactant because...

2010-01-01T23:59:59.000Z

64

Vacuum arc deposition devices  

SciTech Connect

The vacuum arc is a high-current, low-voltage electrical discharge which produces a plasma consisting of vaporized and ionized electrode material. In the most common cathodic arc deposition systems, the arc concentrates at minute cathode spots on the cathode surface and the plasma is emitted as a hypersonic jet, with some degree of contamination by molten droplets [known as macroparticles (MPs)] of the cathode material. In vacuum arc deposition systems, the location and motion of the cathode spots are confined to desired surfaces by an applied magnetic field and shields around undesired surfaces. Substrates are mounted on a holder so that they intercept some portion of the plasma jet. The substrate often provides for negative bias to control the energy of depositing ions and heating or cooling to control the substrate temperature. In some systems, a magnetic field is used to guide the plasma around an obstacle which blocks the MPs. These elements are integrated with a deposition chamber, cooling, vacuum gauges and pumps, and power supplies to produce a vacuum arc deposition system.

Boxman, R.L.; Zhitomirsky, V.N. [Electrical Discharge and Plasma Laboratory, Faculty of Engineering, Tel Aviv University, P.O. Box 39040, Tel Aviv 69978 (Israel)

2006-02-15T23:59:59.000Z

65

Instrument Series: Deposition and Microfabrication  

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

Deposition and Microfabrication Deposition and Microfabrication Sputter Deposition System Only available at EMSL, the Discovery ® Deposition System has been customized to be a fully automated multi-functional "hybrid" instrument with several modes for thin film processing, including multi-target sputtering, effusion cell deposition, electron beam deposition, and in-situ reflection high-energy electron diffraction (RHEED) materials characterization. Unlike most systems, the Discovery ® Deposition System's unique configuration offers operational flexibility, efficiency, and control, allowing a range of applications and materials to be processed simultaneously. Because it is software controlled, users can provide their own "recipes" and have a complete log of what happens throughout the

66

Probing QCD with Rare Charmless $B$ Decays  

SciTech Connect

Rare charmless hadronic B decays are a good testing ground for QCD. In this paper we describe a selection of new measurements made by the BABAR and BELLE collaborations.

Gradl, Wolfgang

2006-07-07T23:59:59.000Z

67

Ames Lab 101: Rare-Earth Magnets  

ScienceCinema (OSTI)

Senior Scientist, Bill McCallum, briefly discusses rare-earth magnets and their uses and how Ames Lab is research new ways to save money and energy using magnets.

McCallum, Bill

2012-08-29T23:59:59.000Z

68

Nuclear Astrophysics in Rare Isotope Facilities  

E-Print Network (OSTI)

Nuclear reactions in stars are difficult to measure directly in the laboratory at the small astrophysical energies. In recent years indirect methods with rare isotopes have been developed and applied to extract low-energy astrophysical cross sections.

C. A. Bertulani

2009-11-02T23:59:59.000Z

69

THE INTERACTION OF RARE GAS METASTABLE ATOMS  

E-Print Network (OSTI)

in the study of metastable atom reactions. > 1 it- Fig, laa raetastable rare gas atom, three quantities are necessaryOF iiARE GAS METASTABLF ATOMS Andrew Zun-Foh Wang M a t e r

Wang, A.Z.-F.

2011-01-01T23:59:59.000Z

70

Rare decays at the LHCb experiment  

E-Print Network (OSTI)

Rare decays of beauty and charm hadrons offer a rich playground to make precise tests of the Standard Model and look for New Physics at the level of quantum corrections. A review of recent LHCb results will be presented.

Luca Pescatore

2014-10-09T23:59:59.000Z

71

Cathodic Arc Plasma Deposition  

Office of Scientific and Technical Information (OSTI)

Cathodic Arc Plasma Deposition Cathodic Arc Plasma Deposition André Anders Lawrence Berkeley National Laboratory, University of California, 1 Cyclotron Road, Mailstop 53, Berkeley, California 94720 aanders@lbl.gov Abstract Cathodic arc plasma deposition is one of oldest coatings technologies. Over the last two decades it has become the technology of choice for hard, wear resistant coatings on cutting and forming tools, corrosion resistant and decorative coatings on door knobs, shower heads, jewelry, and many other substrates. The history, basic physics of cathodic arc operation, the infamous macroparticle problem and common filter solutions are reviewed. Cathodic arc plasmas stand out due to their high degree of ionization, with important consequences for film nucleation, growth, and efficient utilization of substrate bias. The

72

An Application of Sequence Stratigraphy in Modelling Oil Yield Distribution: The Stuart Oil Shale Deposit, Queensland, Australia.  

E-Print Network (OSTI)

??The Stuart Oil Shale Deposit is a major oil shale resource located near Gladstone on the central Queensland coast. It contains an estimated 3.0 billion… (more)

Pope, Graham John

2005-01-01T23:59:59.000Z

73

Rare Earth Phosphate Glass and Glass-Ceramic Proton Conductors  

E-Print Network (OSTI)

300-500°C. Doping rare earth phosphate glasses with Ce, andRare Earth Phosphate Glass and Glass-Ceramic Protonconductivity of alkaline-earth doped rare earth phosphate

De Jonghe, Lutgard C.

2010-01-01T23:59:59.000Z

74

RARE KAON DECAYS: IL BUONO, IL BRUTTO, IL CATTIVO.  

SciTech Connect

The author briefly reviews recent progress in rare kaon decays, where he takes ''rare'' to mean those with {Beta} < {Omicron}(10{sup -7}).

REDLINGER,G.

2004-06-07T23:59:59.000Z

75

Using Rare Gas Permeation to Probe Methanol Diffusion near the...  

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

Rare Gas Permeation to Probe Methanol Diffusion near the Glass Transition Temperature. Using Rare Gas Permeation to Probe Methanol Diffusion near the Glass Transition Temperature....

76

Photoconductivity of chemically deposited rare-earth-doped CdS films  

Science Journals Connector (OSTI)

Highly photosensitive films with photocurrent to dark current ratios of the order of 105 have been prepared by doping CdS with Nd and Pr. The conditions for...

S. Bhushan; Dipti Thakur

1992-03-01T23:59:59.000Z

77

DOE launches rare earth metals research hub  

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

ATL011113_hub ATL011113_hub 01/11/2013 DOE launches rare earth metals research hub Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Printer-friendly Europium, a rare earth element that has the same relative hardness of lead, is used to create fluorescent lightbulbs. With no proven substitutes, europium is considered critical to the clean energy economy. Photo courtesy of the Ames Laboratory. High Resolution Image The Department of Energy has launched a research hub that focuses on solutions to the domestic shortages of rare earth metals and other materials critical for U.S. energy security. Housed at Ames Laboratory in Iowa, Lawrence Livermore has been involved in establishing this Energy Innovation Hub since its conception more than two years ago. In 2010, on behalf of DOE, LLNL hosted the first U.S.-Japan

78

Rapporteur's Report - workshop on rare earth elements  

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

Trans-Atlantic Workshop on Rare Earth Elements and Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Materials for a Clean Energy Future Hosted by the MIT Energy Initiative, cambridge, Massachusetts december 3, 2010 Introduction The objective of the workshop was to exchange views and information on the material security challenges of rare earths and other elements critical for clean energy generation and use. This includes the description of current research topics around the supply chain and end uses, and to identify opportunities for Trans-Atlantic research cooperation. The workshop consisted of a series of brief presentations by researchers in the US and Europe, followed by a discussion of possible areas of collaboration proposed by the co-chairs. A list of the presentations and the agenda for the day is appended with this document.

79

A programme for electron-impact broadening parameter calculations of ionized rare-earth element lines  

E-Print Network (OSTI)

In order to provide atomic data needed for astrophysical investigations, a set of electron-impact broadening parameters for ionized rare-earth element lines should be calculated. We are going to calculate the electron-impact broadening parameters for more than 50 transitions of ionized rare-earth elements. Taking into account that the spectra of these elements are very complex, for calculation we can use the modified semiempirical approach - MSE or simplified MSE. Also, we can estimate these parameters on the basis of regularities and systematic trends.

L. C. Popovic; M. S. Dimitrijevic

1998-05-15T23:59:59.000Z

80

Hybrid Thin Film Deposition System | EMSL  

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

Hybrid Thin Film Deposition System Hybrid Thin Film Deposition System Only available at EMSL, the Discovery Deposition System has been customized to be a fully automated...

Note: This page contains sample records for the topic "deposits estimated rare" 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

Replacing the Rare Earth Intellectual Capital  

SciTech Connect

The rare earth crisis slowly evolved during a 10 to 15 year period beginning in the mid-1980s, when the Chinese began to export mixed rare earth concentrates. In the early 1990s, they started to move up the supply chain and began to export the individual rare earth oxides and metals. By the late 1990s the Chinese exported higher value products, such as magnets, phosphors, polishing compounds, catalysts; and in the 21st century they supplied finished products including electric motors, computers, batteries, liquid-crystal displays (LCDs), TVs and monitors, mobile phones, iPods and compact fluorescent lamp (CFL) light bulbs. As they moved to higher value products, the Chinese slowly drove the various industrial producers and commercial enterprises in the US, Europe and Japan out of business by manipulating the rare earth commodity prices. Because of this, the technically trained rare earth engineers and scientists who worked in areas from mining to separations, to processing to production, to manufacturing of semifinished and final products, were laid-off and moved to other fields or they retired. However, in the past year the Chinese have changed their philosophy of the 1970s and 1980s of forming a rare earth cartel to control the rare earth markets to one in which they will no longer supply the rest of the world (ROW) with their precious rare earths, but instead will use them internally to meet the growing demand as the Chinese standard of living increases. To this end, they have implemented and occasionally increased export restrictions and added an export tariff on many of the high demand rare earth elements. Now the ROW is quickly trying to start up rare earth mines, e.g. Molycorp Minerals in the US and Lynas Corp. in Australia, to cover this shortfall in the worldwide market, but it will take about five years for the supply to meet the demand, even as other mines in the ROW become productive. Unfortunately, today there is a serious lack of technically trained personnel to bring the entire rare earth industry, from mining to original equipment manufacturers (OEM), up to full speed in the next few years. Accompanying this decline in technical expertise, innovation and new products utilizing rare earth elements has slowed dramatically, and it may take a decade or more to recapture America's leading role in technological advancements of rare earth containing products. Before the disruption of the US rare earth industry, about 25,000 people were employed in all aspects of the industry from mining to OEM. Today, only about 1,500 people are employed in these fields. The ratio of non-technically trained persons to those with college degrees in the sciences or engineering varies from about 8 to 1 to about 4 to 1, depending on the particular area of the industry. Assuming an average of 6 to 1, the number of college degree scientists and engineers has decreased from about 4,000 to 250 employed today. In the magnetic industry the approximate numbers are: 6,000 total with 750 technically trained people in the 1980s to 500 totally employed today of which 75 have degrees. The paucity of scientists and engineers with experience and/or training in the various aspects of production and commercialization of the rare earths is a serious limitation to the ability of the US to satisfy its own needs for materials and technologies (1) to maintain our military strength and posture, (2) to assume leadership in critical energy technologies, and (3) to bring new consumer products to the marketplace. The lack of experts is of even greater national importance than the halting in the 1990s and the recent restart of the mining/benification/separation effort in the US; and thus governmental intervention and support for at least five to 10 years will be required to ameliorate this situation. To respond quickly, training programs should be established in conjunction with a national research center at an educational institution with a long tradition in multiple areas of rare earth and other critical elements research and technology. This center should

Gschneidner, Jr., Karl

2011-04-01T23:59:59.000Z

82

Search for rare and forbidden eta ' decays  

E-Print Network (OSTI)

We have searched for rare and forbidden decays of the eta' meson in hadronic events at the CLEO II detector. The search is conducted on 4.80 fb(-1) of e(+)e(-) collisions at 10.6 GeV center-of-mass energy at the Cornell Electron Storage Ring. We...

Ammar, Raymond G.; Baringer, Philip S.; Bean, Alice; Besson, David Zeke; Coppage, Don; Davis, Robin E. P.; Kotov, S.; Kravchenko, I.; Kwak, Nowhan; Zhou, X.

2000-01-01T23:59:59.000Z

83

Mikhail Avilov Facility for Rare Isotope Beams  

E-Print Network (OSTI)

Challenges Chemical Challenges Radiation Challenges Summary #12; World-leading heavy ion accelerator facility for rare isotope science · Nuclear Structure · Nuclear Astrophysics · Fundamental Interactions Target vacuum vessel M. Avilov, May 2014 5th HP Targetry Workshop, FNAL, Slide 4 Target Beam dump Beam

McDonald, Kirk

84

Chemical vapor deposition sciences  

SciTech Connect

Chemical vapor deposition (CVD) is a widely used method for depositing thin films of a variety of materials. Applications of CVD range from the fabrication of microelectronic devices to the deposition of protective coatings. New CVD processes are increasingly complex, with stringent requirements that make it more difficult to commercialize them in a timely fashion. However, a clear understanding of the fundamental science underlying a CVD process, as expressed through computer models, can substantially shorten the time required for reactor and process development. Research scientists at Sandia use a wide range of experimental and theoretical techniques for investigating the science of CVD. Experimental tools include optical probes for gas-phase and surface processes, a range of surface analytic techniques, molecular beam methods for gas/surface kinetics, flow visualization techniques and state-of-the-art crystal growth reactors. The theoretical strategy uses a structured approach to describe the coupled gas-phase and gas-surface chemistry, fluid dynamics, heat and mass transfer of a CVD process. The software used to describe chemical reaction mechanisms is easily adapted to codes that model a variety of reactor geometries. Carefully chosen experiments provide critical information on the chemical species, gas temperatures and flows that are necessary for model development and validation. This brochure provides basic information on Sandia`s capabilities in the physical and chemical sciences of CVD and related materials processing technologies. It contains a brief description of the major scientific and technical capabilities of the CVD staff and facilities, and a brief discussion of the approach that the staff uses to advance the scientific understanding of CVD processes.

NONE

1992-12-31T23:59:59.000Z

85

Atmospheric Pressure Deposition for Electrochromic Windows |...  

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

Atmospheric Pressure Deposition for Electrochromic Windows Atmospheric Pressure Deposition for Electrochromic Windows Emerging Technologies Project for the 2013 Building...

86

DOE Science Showcase - Rare Earth Metal Research from DOE Databases |  

Office of Scientific and Technical Information (OSTI)

Rare Earth Metal Research from DOE Databases Rare Earth Metal Research from DOE Databases Information Bridge Energy Citations Database Highlighted documents of Rare Earth Metal research in DOE databases Information Bridge - Corrosion-resistant metal surfaces DOE R&D Project Summaries - Structural and magnetic studies on heavy rare earth metals at high pressures using designer diamonds Energy Citations Database - Intermultiplet transitions in rare-earth metals DOE Green Energy - LaNi.sub.5 is-based metal hydride electrode in Ni-MH rechargeable cells Science.gov - H.R.4866 - Rare Earths Supply-Chain Technology and Resources Transformation Act of 2010 WorldWideScience.org - China produces most of the world's rare earth metals DOepatents - Recycling of rare earth metals from rare earth-transition metal alloy scrap by liquid metal extraction

87

7 - Estimation of Radiation Doses  

Science Journals Connector (OSTI)

Abstract Radiation doses to the Japanese population from inhalation of contaminated air, external irradiation, terrestrial and marine food contamination are estimated and compared with other sources of anthropogenic (global fallout, Chernobyl accident), natural (radionuclides in food, cosmic radiation) and medical applications (X-ray tests, CT-tests, etc.) of ionizing radiation. The estimated doses from inhalation, ingestion of terrestrial and marine food, and radiation exposure from radioactive clouds and deposited radionuclides were generally below the levels which could cause health damage of the Japanese population, as well as of the world population. The estimated total radiation doses to fish and shellfish in coastal waters during the largest radionuclide releases were by a factor of 10 lower than the baseline safe level postulated for the marine organisms, therefore no harmful effects are expected for the marine ecosystem as well.

Pavel P. Povinec; Katsumi Hirose; Michio Aoyama

2013-01-01T23:59:59.000Z

88

Rare K decays: Challenges and Perspectives  

E-Print Network (OSTI)

At this stage of the LHC program, the prospect for a new physics signal in the very rare K ---> pi nu nu bar decays may be dented, but remains well alive thanks to their intrinsic qualities. First, these decays are among the cleanest observables in the quark flavor sector. When combined with their terrible suppression in the Standard Model, they thus offer uniquely sensitive probes. Second, the LHC capabilities are not ideal for all kinds of new physics, even below the TeV scale. For example, rather elusive scenarios like natural-SUSY-like hierarchical spectrum, baryon number violation, or new very light but very weakly interacting particles may well induce deviations in rare K decays. Even though experimentalists should brace themselves for tiny deviations, these modes thus have a clear role to play in the LHC era.

Christopher Smith

2014-09-22T23:59:59.000Z

89

Concerning the Facility for Rare Isotope Beams  

ScienceCinema (OSTI)

James Symons, Nuclear Science Division Director at Lawrence Berkeley Lab, and Daniela Leitner, head of operations at Berkeley Lab's 88-Inch Cyclotron, discuss major contributions to the new Facility for Rare Isotope Beams (FRIB) at Michigan State University, including ion source, which will based on the VENUS source built for the 88-Inch Cyclotron, and the GRETA gamma-ray detector now under construction there.

Symons, James

2013-05-29T23:59:59.000Z

90

Spomenka Kobe, Jozef Stefan Institut, Rare Earth Magnets in Europe...  

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

Spomenka Kobe, Jozef Stefan Institut, Rare Earth Magnets in Europe Spomenka Kobe, Jozef Stefan Institut, Rare Earth Magnets in Europe SessionB4Kobe-JosefStefanInstitut.pdf...

91

The Materials Preparation Center - Making Rare Earth Metals - Part 3  

SciTech Connect

Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 3 of 4.

Riedemann, Trevor

2011-01-01T23:59:59.000Z

92

The Materials Preparation Center - Making Rare Earth Metals - Part 2  

SciTech Connect

Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 2 of 4.

Riedemann, Trevor

2011-01-01T23:59:59.000Z

93

The Materials Preparation Center - Making Rare Earth Metals - Part 1  

SciTech Connect

Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 1 of 4.

Riedemann, Trevor

2011-01-01T23:59:59.000Z

94

The Materials Preparation Center - Making Rare Earth Metals - Part 4  

SciTech Connect

Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 4 of 4.

Riedemann, Trevor

2011-01-01T23:59:59.000Z

95

The Materials Preparation Center - Making Rare Earth Metals - Part 3  

ScienceCinema (OSTI)

Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 3 of 4.

Riedemann, Trevor

2013-03-01T23:59:59.000Z

96

The Materials Preparation Center - Making Rare Earth Metals - Part 1  

ScienceCinema (OSTI)

Trevor Riedeman, manager of the MPC Rare Earth Materials Section, gives a presentation on the importance of rare earth metals and how they are made at Ames Laboratory. Part 1 of 4.

Riedemann, Trevor

2013-03-01T23:59:59.000Z

97

OCTOBER 1990 DEPOSITION AND REMOVAL  

E-Print Network (OSTI)

, shielding, resuspension, indoor deposition, the relative airborne con- centrations indoors and outdoors RESUSPENSION; PLANTS; RADIATION DOSE DISTRIBUTION; REMEDIAL ACTION; SHIELDING; SURFACE CONTAMINATION; URBAN effected by road traffic, and street cleaning the degree of resuspension, i.e. the return of deposited

98

Variable temperature semiconductor film deposition  

DOE Patents (OSTI)

A method of depositing a semiconductor material on a substrate is disclosed. The method sequentially comprises (a) providing the semiconductor material in a depositable state such as a vapor for deposition on the substrate; (b) depositing the semiconductor material on the substrate while heating the substrate to a first temperature sufficient to cause the semiconductor material to form a first film layer having a first grain size; (c) continually depositing the semiconductor material on the substrate while cooling the substrate to a second temperature sufficient to cause the semiconductor material to form a second film layer deposited on the first film layer and having a second grain size smaller than the first grain size; and (d) raising the substrate temperature, while either continuing or not continuing to deposit semiconductor material to form a third film layer, to thereby anneal the film layers into a single layer having favorable efficiency characteristics in photovoltaic applications. A preferred semiconductor material is cadmium telluride deposited on a glass/tin oxide substrate already having thereon a film layer of cadmium sulfide.

Li, X.; Sheldon, P.

1998-01-27T23:59:59.000Z

99

Magnetism of Chinese loess deposits  

Science Journals Connector (OSTI)

......April 1984 research-article Articles Magnetism of Chinese loess deposits Friedrich Heller...astr. Soc. (1984) 77, 125-141 Magnetism of Chinese loess deposits Friedrich Heller...considerable improvement of NRM cleaning. Often Magnetism of Chinese loess LOG R h ' M A H B......

Friedrich Heller; Liu Tungsheng

1984-04-01T23:59:59.000Z

100

RARE EARTH ELEMENT SENSITIVITY FACTORS IN CALCIC PLAGIOCLASE (ANORTHITE)  

E-Print Network (OSTI)

RARE EARTH ELEMENT SENSITIVITY FACTORS IN CALCIC PLAGIOCLASE (ANORTHITE) C. Floss and B. Jolliff Mc Brookings Drive, St. Louis, MO 63130 1. Introduction The rare earth elements (REE) are sensitive indicators concentrations for each sample are listed in Table 1 and are shown in Fig. 1. Table 1. Rare Earth Element Data

Note: This page contains sample records for the topic "deposits estimated rare" 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

Hydrothermal Deposition | Open Energy Information  

Open Energy Info (EERE)

Hydrothermal Deposition Hydrothermal Deposition Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Hydrothermal Deposition Dictionary.png Hydrothermal Deposition: No definition has been provided for this term. Add a Definition Quartz veins indicate ancient fluid flow, possibly the result of a hydrothermal system (reference: http://www.nvcc.edu/home/cbentley/dc_rocks/) Tufa mounds indicate the location of extinct hot springs. In this photo they show the ancient extent of the surface manifestations at Mono Lake, CA (reference: http://news.medill.northwestern.edu/climatechange/page.aspx?id=170704)(photo by Scott Stine) Hydrothermal water carries minerals as it travels through the crust. These minerals are often deposited as pressure decreases as the fluid approaches

102

Scintillation of rare earth doped fluoride nanoparticles  

SciTech Connect

The scintillation response of rare earth (RE) doped core/undoped (multi-)shell fluoride nanoparticles was investigated under x-ray and alpha particle irradiation. A significant enhancement of the scintillation response was observed with increasing shells due: (i) to the passivation of surface quenching defects together with the activation of the REs on the surface of the core nanoparticle after the growth of a shell, and (ii) to the increase of the volume of the nanoparticles. These results are expected to reflect a general aspect of the scintillation process in nanoparticles, and to impact radiation sensing technologies that make use of nanoparticles.

Jacobsohn, L. G.; McPherson, C. L.; Sprinkle, K. B.; Ballato, J. [Center for Optical Materials Science and Engineering Technologies (COMSET), and School of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29634 (United States); Yukihara, E. G. [Physics Department, Oklahoma State University, Stillwater, Oklahoma 74078-3072 (United States); DeVol, T. A. [Department of Environmental Engineering and Earth Sciences, Clemson University, Clemson, South Carolina 29634-0905 (United States)

2011-09-12T23:59:59.000Z

103

Rare b hadron decays at the LHC  

E-Print Network (OSTI)

With the completion of Run~I of the CERN Large Hadron Collider, particle physics has entered a new era. The production of unprecedented numbers of heavy-flavoured hadrons in high energy proton-proton collisions allows detailed studies of flavour-changing processes. The increasingly precise measurements allow to probe the Standard Model with a new level of accuracy. Rare $b$ hadron decays provide some of the most promising approaches for such tests, since there are several observables which can be cleanly interpreted from a theoretical viewpoint. In this article, the status and prospects in this field are reviewed, with a focus on precision measurements and null tests.

Blake, T; Hiller, G

2015-01-01T23:59:59.000Z

104

Final Report "Structure of Rare Isotopes"  

SciTech Connect

The Junior Investigator grant 'Structure of Rare Isotopes' (DE-FG02-07ER41529) supported research in low-energy nuclear theory from September 1, 2007 to August 31, 2010. It was the main goal of the proposed research to develop and optimize an occupation-number-based energy functional for the computation of nuclear masses, and this aim has been reached. Furthermore, progress was made in linking two and three-body forces from low-momentum interactions to pairing properties in nuclear density functionals, and in the description of deformed nuclei within an effective theory.

Papenbrock, Thomas

2012-05-09T23:59:59.000Z

105

Rare-Earth-Free Traction Motor: Rare Earth-Free Traction Motor for Electric Vehicle Applications  

SciTech Connect

REACT Project: Baldor will develop a new type of traction motor with the potential to efficiently power future generations of EVs. Unlike today’s large, bulky EV motors which use expensive, imported rare-earth-based magnets, Baldor’s motor could be light, compact, contain no rare earth materials, and have the potential to deliver more torque at a substantially lower cost. Key innovations in this project include the use of a unique motor design, incorporation of an improved cooling system, and the development of advanced materials manufacturing techniques. These innovations could significantly reduce the cost of an electric motor.

None

2012-01-01T23:59:59.000Z

106

Behaviour of zirconium, niobium, yttrium and the rare earth elements in the Thor Lake rare-metal  

E-Print Network (OSTI)

Behaviour of zirconium, niobium, yttrium and the rare earth elements in the Thor Lake rare and the heavy rare earth elements in the world. Much of the potentially economic mineralization was concentrated of Science Department of Earth and Planetary Sciences McGill University, Montreal, QC, Canada February 2010

107

TULSA UNIVERSITY PARAFFIN DEPOSITION PROJECTS  

SciTech Connect

As oil and gas production moves to deeper and colder water, subsea multiphase production systems become critical for economic feasibility. It will also become increasingly imperative to adequately identify the conditions for paraffin precipitation and predict paraffin deposition rates to optimize the design and operation of these multiphase production systems. Although several oil companies have paraffin deposition predictive capabilities for single-phase oil flow, these predictive capabilities are not suitable for the multiphase flow conditions encountered in most flowlines and wellbores. For deepwater applications in the Gulf of Mexico, it is likely that multiphase production streams consisting of crude oil, produced water and gas will be transported in a single multiphase pipeline to minimize capital cost and complexity at the mudline. Existing single-phase (crude oil) paraffin deposition predictive tools are clearly inadequate to accurately design these pipelines because they do not account for the second and third phases, namely, produced water and gas. The objective of this program is to utilize the current test facilities at The University of Tulsa, as well as member company expertise, to accomplish the following: enhance our understanding of paraffin deposition in single and two-phase (gas-oil) flows; conduct focused experiments to better understand various aspects of deposition physics; and, utilize knowledge gained from experimental modeling studies to enhance the computer programs developed in the previous JIP for predicting paraffin deposition in single and two-phase flow environments. These refined computer models will then be tested against field data from member company pipelines. The following deliverables are scheduled during the first three projects of the program: (1) Single-Phase Studies, with three different black oils, which will yield an enhanced computer code for predicting paraffin deposition in deepwater and surface pipelines. (2) Two-Phase Studies, with a focus on heat transfer and paraffin deposition at various pipe inclinations, which will be used to enhance the paraffin deposition code for gas-liquid flow in pipes. (3) Deposition Physics and Water Impact Studies, which will address the aging process, improve our ability to characterize paraffin deposits and enhance our understanding of the role water plays in paraffin deposition in deepwater pipelines. As in the previous two studies, knowledge gained in this suite of studies will be integrated into a state-of-the-art three-phase paraffin deposition computer program.

Michael Volk; Cem Sarica

2003-10-01T23:59:59.000Z

108

Note: Portable rare-earth element analyzer using pyroelectric crystal  

SciTech Connect

We report a portable rare-earth element analyzer with a palm-top size chamber including the electron source of a pyroelectric crystal and the sample stage utilizing cathodoluminescence (CL) phenomenon. The portable rare-earth element analyzer utilizing CL phenomenon is the smallest reported so far. The portable rare-earth element analyzer detected the rare-earth elements Dy, Tb, Er, and Sm of ppm order in zircon, which were not detected by scanning electron microscopy-energy dispersive X-ray spectroscopy analysis. We also performed an elemental mapping of rare-earth elements by capturing a CL image using CCD camera.

Imashuku, Susumu, E-mail: imashuku.susumu.2m@kyoto-u.ac.jp; Fuyuno, Naoto; Hanasaki, Kohei; Kawai, Jun [Department of Materials Science and Engineering, Kyoto University, Sakyo, Kyoto 606-8501 (Japan)] [Department of Materials Science and Engineering, Kyoto University, Sakyo, Kyoto 606-8501 (Japan)

2013-12-15T23:59:59.000Z

109

Age And Nature Of Deposits On The Submarine Flanks Of Piton De La Fournaise  

Open Energy Info (EERE)

Age And Nature Of Deposits On The Submarine Flanks Of Piton De La Fournaise Age And Nature Of Deposits On The Submarine Flanks Of Piton De La Fournaise (Reunion Island) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Age And Nature Of Deposits On The Submarine Flanks Of Piton De La Fournaise (Reunion Island) Details Activities (0) Areas (0) Regions (0) Abstract: Debris-avalanche deposits are by far the most extensive and voluminous formations in the submarine domain around Reunion Island. 21 sites sampled offshore of Piton de la Fournaise were studied. All the dredged rocks have a volcanic origin and often consist of blocks buried in a finer-grained matrix. Both massive and vesiculated samples were found, but only rare fragments of pillow lavas were encountered. All the lavas are basalts with variable amounts of olivine. A few plagioclase-bearing basalts

110

Part cost estimation at early design phase  

Science Journals Connector (OSTI)

Abstract Although 70% of part cost is determined during the early design stage, designers rarely accurately estimate the costs of their designs. Based on extensive literature review, in-depth industrial survey and close collaboration with multiple manufacturers, forty factors were identified as governing part cost and ranked according to cost impact. Based on parameter ranking and availability at the early stages of design, a cost estimator for designers is proposed. As the design progresses and more parameters become available, a more accurate cost model is derived and proposed to manufacturers. Results are analyzed and compared to actual manufacturing costing demonstrating good fit.

Gila Molcho; Asher Cristal; Moshe Shpitalni

2014-01-01T23:59:59.000Z

111

Other Hydrothermal Deposits | Open Energy Information  

Open Energy Info (EERE)

hydrothermal deposits dot the landscape at the Hverir Geothermal Area, Iceland. Photo by Darren Atkins User-specified field for unlisted hydrothermally deposited rock and...

112

Sol-Gel Deposited Electrochromic Coatings  

E-Print Network (OSTI)

Handbook of Inorganic Electrochromic Materials, Elsevier, .O R Y Sol-Gel Deposited Electrochromic Coatings Nilgun Ozer1600 Sol-Gel Deposited Electrochromic Coatings Nilgun Ozer

Ozer, N.

2010-01-01T23:59:59.000Z

113

Sandia National Laboratories: ion beam assisted deposition  

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

ion beam assisted deposition Sandia, Los Alamos, Superconducting Technologies Inc., & Superpower: Solution Deposition Planarization On March 20, 2013, in CINT, Facilities, Grid...

114

Linked Deposit Loan Program (Kentucky)  

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

The Linked Deposit Program provides loan financing for small businesses of up to $100,000 for up to 7 years. The State Investment Commission invests funds from the state's Abandoned Property Cash...

115

Success Story: Chrome Deposit Corporation  

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

This case study describes how Chrome Deposit Corporation was able to reduce plant-wide energy use, minimize its environmental impact, and improve energy management practices amidst ongoing growth.

116

Searches for very rare decays of kaons  

SciTech Connect

The physics motivation for searches for very rare kaon decays, either forbidden or suppressed within the Standard Model, is briefly discussed. Simple arguments conclude that such searches probe possible new forces at a 200 TeV mass scale or constitute a precision test of the electroweak model. The examples of such process are decays of K{sub L}{sup 0} {yields} {mu} {sup {+-}}e{sup -+}, K{sup +} {yields} {pi}{sup +} {mu}{sup +} e{sup -}, K{sub L}{sup 0} {yields} {mu}{sup +} {mu}{sup -}, and K{sup +} {yields} {pi} {yields} {pi}{sup +}{nu}{bar {nu}}. We present the current experimental status and describe the new efforts to reach sensitivities down to one part in 10{sup 12}. The discussion is focused on the experimental program at the Alternating Gradient Synchrotron at Brookhaven National Laboratory, where intense beams make such studies possible.

Lang, K. [Univ. of Texas, Austin, TX (United States)

1997-01-01T23:59:59.000Z

117

Asphalt deposition in miscible floods  

E-Print Network (OSTI)

. ACKNOWLEDGMENTS. . 22 23 8. REFERENCES. 24 9. APPENDIX. 26 LIST OF TABLES Table Page I II IV Properties of the Crude Oils Studied Average Core Properties for Different Tests Average Perrneabilities of Different Sections of Core Before and After... Displacement with Liquefied Petroleum Gas Percent Reduction in Permeability in Different Sections of Core Due to Asphalt Deposition Average Recoveries of Four Crude Oils and Increase in Swept Area due to Plugging by Asphalt Deposition 27 29 ABSTRACT...

Hasan, Syed Mir Ahmed

2012-06-07T23:59:59.000Z

118

Chemical enhancement of surface deposition  

DOE Patents (OSTI)

A method and apparatus for increasing the deposition of ions onto a surface, such as the adsorption of uranium ions on the detecting surface of a radionuclide detector. The method includes the step of exposing the surface to a complexing agent, such as a phosphate ion solution, which has an affinity for the dissolved species to be deposited on the surface. This provides, for example, enhanced sensitivity of the radionuclide detector.

Patch, Keith D. (Lexington, MA); Morgan, Dean T. (Sudbury, MA)

1997-07-29T23:59:59.000Z

119

Chemical enhancement of surface deposition  

DOE Patents (OSTI)

A method and apparatus are disclosed for increasing the deposition of ions onto a surface, such as the adsorption of uranium ions on the detecting surface of a radionuclide detector. The method includes the step of exposing the surface to a complexing agent, such as a phosphate ion solution, which has an affinity for the dissolved species to be deposited on the surface. This provides, for example, enhanced sensitivity of the radionuclide detector. 16 figs.

Patch, K.D.; Morgan, D.T.

1997-07-29T23:59:59.000Z

120

Vapor deposition of hardened niobium  

DOE Patents (OSTI)

A method of coating ceramic nuclear fuel particles containing a major amount of an actinide ceramic in which the particles are placed in a fluidized bed maintained at ca. 800.degree. to ca. 900.degree. C., and niobium pentachloride vapor and carbon tetrachloride vapor are led into the bed, whereby niobium metal is deposited on the particles and carbon is deposited interstitially within the niobium. Coating apparatus used in the method is also disclosed.

Blocher, Jr., John M. (Columbus, OH); Veigel, Neil D. (Columbus, OH); Landrigan, Richard B. (Columbus, OH)

1983-04-19T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Good Earths and Rare Earths | Department of Energy  

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

Good Earths and Rare Earths Good Earths and Rare Earths Good Earths and Rare Earths April 20, 2011 - 6:17pm Addthis Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science What does this mean for me? Rare earth elements -- dysprosium, neodymium, terbium, europium and yttrium -- are essential to a wide range of green energy technologies ranging from windmills to electric vehicles One of their primary uses is in permanent magnets, which amount to over a $4 billion global industry Ames Laboratory recently discovered a way to make these magnets cheaper and greener and signed a cooperative research and development agreement with Molycorp Inc. -- the Western hemisphere's only producer of rare-earth oxides. China holds about 36 percent of world's rare-earth reserves, (compared to 13 percent in the U.S.), but it currently produces 95 percent

122

Influence of double-electron transitions on the EXAFS L edges of rare-earth systems  

Science Journals Connector (OSTI)

This work presents an x-ray-absorption study at the L edges of several rare-earth compounds. In both L1-edge and L3-edge spectra, anomalous features are clearly detected in the EXAFS region and have been associated with the creation of 2s4d and 2p4d double-core hole states, respectively. Comparison of theoretical calculations with the experiments are carried out using the results of explicit computation of cross sections for the allowed mainline (L edge) and double-electron (LN4,5 edges) which identify the transitions expected to be observable. In addition, the excitation energies of all of these allowed transitions are given. The influence of multielectron transitions on the EXAFS data analysis is discussed for several rare-earth-based systems. An estimate of the error introduced by neglecting the presence of double-electron transitions on coordination numbers and bond distances is given, based on these experimental data.

Jesús Chaboy; Augusto Marcelli; Trevor A. Tyson

1994-05-01T23:59:59.000Z

123

POWDER METALLURGICAL PROCESSING OF MAGNETOSTRICTIVE MATERIALS BASED ON RARE EARTH-IRON INTERMETALLIC COMPOUNDS  

E-Print Network (OSTI)

R « any of several rare earth elements) was discovered. Toobserved for pure rare earth elements. This and the strong

Malekzadeh, Manoochehr

2011-01-01T23:59:59.000Z

124

Jefferson Lab Laser Twinkles in Rare Color | Jefferson Lab  

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

Laser Twinkles in Rare Color NEWPORT NEWS, VA, Dec. 21 - December is a time for twinkling lights, and scientists at the Department of Energy's Thomas Jefferson National Accelerator...

125

Rare earth element transport in the Yucca Mountain region.  

E-Print Network (OSTI)

??In sync with environmental pollution of solutes in nature, from source, process to consequence, geochemical processes (leaching and sorption) and hydraulic transportation of the rare… (more)

Zhang, Liqiong

2010-01-01T23:59:59.000Z

126

News about Rare Earths, New or Critical Materials, and Their...  

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

14, 2014 Could magnets in helmets reduce football concussions?, November 2014 The Rare-Earth Elements -- Vital to Modern Technologies and Lifestyles, November 2014 Energy Report:...

127

Potpourri of deposition and resuspension questions  

SciTech Connect

Twenty questions and answers are listed dealing with particulate deposition, resuspension, and precipitation scavenging.

Slinn, W.G.N.

1983-01-01T23:59:59.000Z

128

Lithologic characteristics, depositional environments and geometries of reservoir and nonreservoir facies in the Queen Formation (Guadalupian, Permian) of Moose and Virey Fields, Midland County, Texas  

E-Print Network (OSTI)

, mud and anhydrite, or 'chaotic halite'. Both bed types are commonly parted by thin laminae and lenses of mud and anhydrite. 20 The breccias are composed of rare massive assemblages of non-oriented gravel- to boulder-sized clastic and anhydrite.... The primary structures, which were formed during the deposition of the beds, consist of abundant laminated sandstone-mudstone couplets and common massive beds, and less often of rare cryptalgal laminae, deflation lags, ripple-drift cross-strata and current...

Aller, Gregory Shane

2012-06-07T23:59:59.000Z

129

Novel rare earth boron-rich solids  

SciTech Connect

A new series of boron-rich solids ReB{sub 22}C{sub 2}N (Re: Y, Ho, Er, Tm, Lu) was synthesized by traditional solid-state reaction. The crystal structure of the representative compound YB{sub 22}C{sub 2}N was solved by direct method from powder X-ray diffraction (XRD) data and transmission electron microscope (TEM) analysis. The unit cell of the new structure is rhombohedral with space group R-3m (No. 166), lattice constant a = b = 5.623(0) {angstrom} and c = 44.785(3) {angstrom} with six formula units in one unit cell. The atoms of boron in the solids, like most of the boron-rich solids, exist with icosahedral and octahedral clusters, and the whole crystal shows a layered structure. The interconnected nine layers of icosahedron and three layers of octahedron in a unit cell build the whole framework of the new phase and rare earth metal atoms reside in voids of the octahedron layers. The neighboring icosahedral layers link through C-B-C chains besides the direct bonding of B-B. Both experimental and structural analysis indicated that the nitrogen atoms in the new phase can be replaced with carbon.

Zhang, Fuxiang; Leithe-Jasper, Andreas; Xu, Jun; Mori, Takao; Matsui, Yoshio, Tanaka, Takaho; Okada, Shigeru

2001-06-01T23:59:59.000Z

130

TULSA UNIVERSITY PARAFFIN DEPOSITION PROJECTS  

SciTech Connect

As oil and gas production moves to deeper and colder water, subsea multiphase production systems become critical for economic feasibility. It will also become increasingly imperative to adequately identify the conditions for paraffin precipitation and predict paraffin deposition rates to optimize the design and operation of these multi-phase production systems. Although several oil companies have paraffin deposition predictive capabilities for single-phase oil flow, these predictive capabilities are not suitable for the multiphase flow conditions encountered in most flowlines and wellbores. For deepwater applications in the Gulf of Mexico, it is likely that multiphase production streams consisting of crude oil, produced water and gas will be transported in a single multiphase pipeline to minimize capital cost and complexity at the mudline. Existing single-phase (crude oil) paraffin deposition predictive tools are clearly inadequate to accurately design these pipelines, because they do not account for the second and third phases, namely, produced water and gas. The objective of this program is to utilize the current test facilities at The University of Tulsa, as well as member company expertise, to accomplish the following: enhance our understanding of paraffin deposition in single and two-phase (gas-oil) flows; conduct focused experiments to better understand various aspects of deposition physics; and, utilize knowledge gained from experimental modeling studies to enhance the computer programs developed in the previous JIP for predicting paraffin deposition in single and two-phase flow environments. These refined computer models will then be tested against field data from member company pipelines.

Cem Sarica; Michael Volk

2004-06-01T23:59:59.000Z

131

A simple method to estimate interwell autocorrelation  

SciTech Connect

The estimation of autocorrelation in the lateral or interwell direction is important when performing reservoir characterization studies using stochastic modeling. This paper presents a new method to estimate the interwell autocorrelation based on parameters, such as the vertical range and the variance, that can be estimated with commonly available data. We used synthetic fields that were generated from stochastic simulations to provide data to construct the estimation charts. These charts relate the ratio of areal to vertical variance and the autocorrelation range (expressed variously) in two directions. Three different semivariogram models were considered: spherical, exponential and truncated fractal. The overall procedure is demonstrated using field data. We find that the approach gives the most self-consistent results when it is applied to previously identified facies. Moreover, the autocorrelation trends follow the depositional pattern of the reservoir, which gives confidence in the validity of the approach.

Pizarro, J.O.S.; Lake, L.W. [Univ. of Texas, Austin, TX (United States)

1997-08-01T23:59:59.000Z

132

Allele age and a test for selection on rare alleles  

Science Journals Connector (OSTI)

...Charlesworth and P. H. Harvey Allele age and a test for selection on rare alleles Montgomery...recombination, leads to a statistical test of whether a rare allele has experienced natural selection. The test is based on finding whether there is too...

2000-01-01T23:59:59.000Z

133

Kinetic roughening during rare-gas homoepitaxy E. Nabighian,1  

E-Print Network (OSTI)

Kinetic roughening during rare-gas homoepitaxy E. Nabighian,1 M. C. Bartelt,2 and X. D. Zhu1,* 1 roughening, which accounts for deviations from layer- by-layer growth, is generally very sensitive substrates; see e.g., Ref. 3. A quantitative assessment of the way in which rare-gas multilayer films roughen

Zhu, Xiangdong

134

FARVAT: a family-based rare variant association test  

Science Journals Connector (OSTI)

......family-based rare variant association test Sungkyoung Choi 1 Sungyoung Lee 1 Sven...FAmily-based Rare Variant Association Test (FARVAT). FARVAT is based on the quasi-likelihood...working matrix, our method could be a burden test or a variance component test, and could......

Sungkyoung Choi; Sungyoung Lee; Sven Cichon; Markus M. Nöthen; Christoph Lange; Taesung Park; Sungho Won

2014-11-15T23:59:59.000Z

135

Behavior of Rare Earth Elements in Geothermal Systems- A New  

Open Energy Info (EERE)

Behavior of Rare Earth Elements in Geothermal Systems- A New Behavior of Rare Earth Elements in Geothermal Systems- A New Exploration/Exploitation Tool? Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Behavior of Rare Earth Elements in Geothermal Systems- A New Exploration/Exploitation Tool? Abstract N/A Author Department of Geology and Geological Engineering niversity of Idaho Published Publisher Not Provided, 2001 DOI Not Provided Check for DOI availability: http://crossref.org Online Internet link for Behavior of Rare Earth Elements in Geothermal Systems- A New Exploration/Exploitation Tool? Citation Department of Geology and Geological Engineering niversity of Idaho. 2001. Behavior of Rare Earth Elements in Geothermal Systems- A New Exploration/Exploitation Tool?. (!) : (!) . Retrieved from

136

DOE Announces RFI on Rare Earth Metals | Department of Energy  

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

RFI on Rare Earth Metals RFI on Rare Earth Metals DOE Announces RFI on Rare Earth Metals May 6, 2010 - 12:00am Addthis Washington, D.C. - The Department of Energy has released a Request for Information (RFI) soliciting information on rare earth metals and other materials used in the energy sector. The request is specifically focused on rare earth metals (e.g., lanthanum, cerium and neodymium) and several other metals including lithium and cobalt, but respondents are welcome to identify other materials of interest. These materials are important to the development and deployment of a variety of clean energy technologies, such as wind turbines, hybrid vehicles, solar panels and energy efficient light bulbs. In a March 17 speech, Assistant Secretary of Energy for Policy & International Affairs David Sandalow announced that DOE is developing its

137

DOE Announces RFI on Rare Earth Metals | Department of Energy  

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

RFI on Rare Earth Metals RFI on Rare Earth Metals DOE Announces RFI on Rare Earth Metals May 6, 2010 - 12:00am Addthis Washington, D.C. - The Department of Energy has released a Request for Information (RFI) soliciting information on rare earth metals and other materials used in the energy sector. The request is specifically focused on rare earth metals (e.g., lanthanum, cerium and neodymium) and several other metals including lithium and cobalt, but respondents are welcome to identify other materials of interest. These materials are important to the development and deployment of a variety of clean energy technologies, such as wind turbines, hybrid vehicles, solar panels and energy efficient light bulbs. In a March 17 speech, Assistant Secretary of Energy for Policy & International Affairs David Sandalow announced that DOE is developing its

138

Internal Dose Estimates from  

E-Print Network (OSTI)

Appendix F Internal Dose Estimates from NTS Fallout F-1 #12;Radiation Dose to the Population;TABLE OF CONTENTS Page F- Part I. Estimates of Dose...........................................................................................40 Comparison to dose estimates from global fallout

139

Vacuum vapor deposition gun assembly  

DOE Patents (OSTI)

A vapor deposition gun assembly includes a hollow body having a cylindrical outer surface and an end plate for holding an adjustable heat sink, a hot hollow cathode gun, two magnets for steering the plasma from the gun into a crucible on the heat sink, and a shutter for selectively covering and uncovering the crucible.

Zeren, Joseph D. (Boulder, CO)

1985-01-01T23:59:59.000Z

140

Interglacial Deposits at Bobbitshole, Ipswich  

Science Journals Connector (OSTI)

...Bobbitshole, Ipswich R. G. West The stratigraphy and palaeobotany...occupy a lake basin in a valley cut in the local plateau...Interglacial in north-west Europe, with which the...and clays deposited in a valley cut in boulder clay assigned...Bobbitshole, Ipswich West Richard Gilbert Author...

1957-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Method to inhibit deposit formation  

SciTech Connect

A process is described for inhibiting deposit formation on the contact surfaces of structures confining heated hydrocarbon fluid which exhibits substantial fouling. The process consists of introducing into the hydrocarbon fluid at least an inhibiting amount of thiophene-containing polycondensed aromatic/naphthenic compounds of number average molecular weight (M-bar n) from 200 to 1,000.

Dickakian, G.B.

1986-10-28T23:59:59.000Z

142

Scoping Inventory Calculations for the Rare Isotope Accelerator  

SciTech Connect

This document is a report on our activities in FY03 exploring nuclear safety and hazard analysis issues relevant to the Rare Isotope Accelerator (RIA). It is not clear whether DOE will classify the RIA as an accelerator facility subject to the accelerator-specific safety requirements of DOE Order 420.2A or as a nonreactor nuclear facility subject to the requirements of 10 CFR 830. The final outcome of this issue will have significant impact on the construction and operation of the facility and the quality assurance requirements for items or services that may affect nuclear safety. The resolution of this issue will be an important earlier decision for the RIA project team and will require early consultation with the appropriate DOE authorities. For nuclear facilities, facility hazard classification depends on the inventory of releasable radionuclides; therefore, some simplistic, scoping inventory calculations for some assumed targets and beams are done to estimate the hazard category of RIA if it is declared a nuclear facility. These calculations show that for the scenarios analyzed, RIA would produce sufficient quantities of radionuclides to be classified as a Category 3 nuclear facility. Over the lifetime of RIA operations, it may be possible to build up Category 2 quantities of {sup 227}Ac and {sup 228}Th. A storage building, separate from the driver, target, and experimental buildings, used to store and isolate accumulated targets and other hardware, can mitigate the potential impact on RIA. The more onerous requirements of Category 2 facilities would only be imposed on the storage facility and not on the rest of the RIA facilities. Some of the differences in a category 2 and category 3 facility are discussed in Appendix 1.

Ahle, L E; Boles, J L

2003-07-25T23:59:59.000Z

143

Precipitation scavenging, dry deposition, and resuspension. Volume 2: dry deposition and resuspension  

SciTech Connect

Papers are presented under the headings: dry deposition of gases, dry deposition of particles, wind erosion, plutonium deposition and resuspension, air-sea exchange, tropical and polar, global scale, and future studies.

Pruppacher, H.R.; Semanin, R.G.; Slinn, W.G.N.

1983-01-01T23:59:59.000Z

144

Vapor deposition of tantalum and tantalum compounds  

SciTech Connect

Tantalum, and many of its compounds, can be deposited as coatings with techniques ranging from pure, thermal chemical vapor deposition to pure physical vapor deposition. This review concentrates on chemical vapor deposition techniques. The paper takes a historical approach. The authors review classical, metal halide-based techniques and current techniques for tantalum chemical vapor deposition. The advantages and limitations of the techniques will be compared. The need for new lower temperature processes and hence new precursor chemicals will be examined and explained. In the last section, they add some speculation as to possible new, low-temperature precursors for tantalum chemical vapor deposition.

Trkula, M. [Los Alamos National Lab., NM (United States). Materials Science and Technology Div.

1996-04-01T23:59:59.000Z

145

Computational study of wax deposition in pipeline  

Science Journals Connector (OSTI)

Wax deposition in subsea pipelines is one of the flow assurance problems for oil and gas production. In contrast to many studies about single phase wax deposition gas-oil wax deposition studies are very limited. The wax deposition mechanism and model prediction are restricted by many factors such as hydrodynamic and thermal when multiphase flow is involved. Wax deposition modeling becomes complicated under multiphase flowing conditions. wax deposition is depended by the flow pattern. The stratified flow is one of the most common flow patterns in the actual subsea gas-oil flowing conditions. In this work numerical methods are used to study wax deposition in oil-gas stratified flow through a pipe. Based on the flow analysis about stratified flow the non-isothermal heat and mass transfer is calculated. The temperature profile of the oil and the concentration profile of wax in oil are obtained. The change of the oil-gas interface i.e. the liquid holdup throughout the pipe must be taken into the heat and mass balance. The valid wax deposition surface must be taken into the wax deposition modeling by establishing function of the liquid holdup and the wetted area by oil. The molecular diffusion is as the deposition mechanism. The increase of the wax fraction in the deposit as a function of time depends on the mass flux from the oil deposit interface into the gel and the growth of the deposit thickness depends on the difference between the mass flux from the bulk oil to the oil deposit interface and the mass flux from the interface into the deposit. In addition the growth of the wax deposit as a function of time along with the effect oil flow rate gas flow rate and the inlet temperature are discussed. The presence of gas significantly reduces the severity of wax deposition by altering the heat and mass transfer characteristics.

2013-01-01T23:59:59.000Z

146

Air and rain toxics deposition monitoring in Galveston Bay Texas  

SciTech Connect

In order to fulfill the mandates of the Great Waters Program and portions of the Clean Air Act Amendments of 1990, the Environmental Protection Agency (EPA) has initiated atmospheric monitoring research in important and representative water bodies, including coastal waters, for evidence of atmospheric deposition of pollutants. These pollutants include nutrients, trace metals, polynuclear aromatic hydrocarbons and PCBs. A site was established in Seabrook Texas on the western shore of Galveston Bay representative of southern, coastal water system. This study determines selected environmental pollutants of potential concern to Galveston Bay and other Gulf coastal waters. While information is currently being generated by other investigations in Galveston Bay, such as EPA EMAP, Galveston Bay National Estuary, NOAA Status and Trends and other programs on contaminants in sediments and organisms, little reliable data is available to assess atmospheric deposition. The importance of atmospheric deposition of contaminants to Galveston Bay, based on air and rain samples collected continuously from March 1995 to March 1996 will be presented and compared to the results from other Great Waters Program sites. These results are critical to the understanding of the relative importance of various contaminant inputs to Galveston Bay by estimating atmospheric depositional fluxes.

Wade, T.; Sweet, S.; Park, J.; Cifuentes, L.; Tindale, N.; Santschi, P.; Gill, G. [Texas A and M Univ., College Station, TX (United States). Coll. of Geosciences and Maritime Studies

1995-12-31T23:59:59.000Z

147

Air toxics deposition monitoring in Galveston Bay Texas  

SciTech Connect

In order to fulfill the mandates of the Great Waters Program and portions of the Clean Air Act Amendments of 1990, the Environmental Protection Agency (EPA) has initiated atmospheric monitoring research in important and representative water bodies, including coastal waters, for evidence of atmospheric deposition of pollutants. These pollutants include nutrients, trace metals, polynuclear aromatic hydrocarbons, PCBs and chlorinated pesticides. A site was established in Galveston Bay, Texas as a representative souther, coastal water system. This study determines selected environmental pollutants of potential concern to Galveston Bay and other Gulf coastal waters. While information is currently being generated by other investigations in Galveston Bay, such as EPA EMAP, Galveston Bay National Estuary, NOAA Status and Trends and other programs on contaminants in sediments and organisms, little reliable data is available to assess atmospheric deposition. This study is producing information on atmospheric deposition of pollutants to Galveston Bay, as well as on long range transport of pollutants to other water bodies. These research results are critical to the understanding of the relative importance of pollution inputs to Galveston Bay by estimating atmospheric depositional fluxes. The results from this Program will also be compared with the results from other Great Waters Program sites.

Wade, T.L.; Sweet, S.; Cifuentes, L.; Tindale, N.; Santschi, P.; Gill, G. [Texas A and M Univ., College Station, TX (United States)

1994-12-31T23:59:59.000Z

148

Cost Estimation Package  

Directives, Delegations, and Requirements

This chapter focuses on the components (or elements) of the cost estimation package and their documentation.

1997-03-28T23:59:59.000Z

149

Modeling deposit formation in diesel injector nozzle  

E-Print Network (OSTI)

Formation of deposit in the diesel injector nozzle affects the injection behavior and hinders performance. Under running condition, deposit precursors are washed away by the ensuing injection. However, during the cool down ...

Sudhiesh Kumar, Chintoo

2009-01-01T23:59:59.000Z

150

Resuspension of wall deposits in spray dryers  

Science Journals Connector (OSTI)

Wall deposition occurs in spray dryers when dried or partially dried particles contact and adhere to the walls during operation, thus reducing the yield of product collected. Wall deposits also present a product ...

M. J. Hanus; T. A. G. Langrish

2007-10-01T23:59:59.000Z

151

Chemical vapor deposition of functionalized isobenzofuran polymers  

E-Print Network (OSTI)

This thesis develops a platform for deposition of polymer thin films that can be further tailored by chemical surface modification. First, we explore chemical vapor deposition of functionalized isobenzofuran films using ...

Olsson, Ylva Kristina

2007-01-01T23:59:59.000Z

152

Essays on Banking Crises and Deposit Insurance  

E-Print Network (OSTI)

of the deposit insurance system while the second essay studies the impact of international illiquidity on domestic banking crises. The Recent Deposit Insurance Reform in the U.S. raised the coverage limit for certain types of deposits. In chapter II, I study...

Wang, Wen-Yao

2009-05-15T23:59:59.000Z

153

Accelerated electrospark deposition and the wear behavior of coatings  

Science Journals Connector (OSTI)

Electrospark deposition (ESD) is a coating process that ... such as pulse energy, pulse frequency, and deposition time are presented. Electrospark deposition coating by the new equipment on AISI...

P. -Z. Wang; G. -S. Pan; Y. Zhou; J. -X. Qu…

1997-12-01T23:59:59.000Z

154

Check Estimates and Independent Costs  

Directives, Delegations, and Requirements

Check estimates and independent cost estimates (ICEs) are tools that can be used to validate a cost estimate. Estimate validation entails an objective review of the estimate to ensure that estimate criteria and requirements have been met and well documented, defensible estimate has been developed. This chapter describes check estimates and their procedures and various types of independent cost estimates.

1997-03-28T23:59:59.000Z

155

Fact Sheet: Facility For Rare Isotope Beams (FRIB) Applicant Selection |  

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

Facility For Rare Isotope Beams (FRIB) Applicant Facility For Rare Isotope Beams (FRIB) Applicant Selection Fact Sheet: Facility For Rare Isotope Beams (FRIB) Applicant Selection December 11, 2008 - 8:51am Addthis Based on the analyses and recommendations over the last decade, the U.S. Department of Energy (DOE) Office of Science determined that the establishment of a Facility for Rare Isotope Beams (FRIB) is a high priority for the future of U.S. nuclear science research. This determination and supporting rationale are reflected in the DOE/ National Science Foundation Nuclear Science Advisory Committee's 2007 Long Range Plan and the 2003 DOE report, "Facilities for the Future of Science: A Twenty-Year Outlook." A Funding Opportunity Announcement (FOA) was used to solicit applications for the conceptual design and establishment of FRIB in order

156

Engineering of microorganisms towards recovery of rare metal ions  

Science Journals Connector (OSTI)

The bioadsorption of metal ions using microorganisms is an attractive technology for the recovery of rare metal ions as well as removal of toxic heavy metal ions from aqueous solution. In initial attempts, microo...

Kouichi Kuroda; Mitsuyoshi Ueda

2010-06-01T23:59:59.000Z

157

COLLOQUIUM: Facility for Rare Isotope Beams - Scientific Opportunities...  

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

2015, 4:00pm to 5:30pm Colloquia MBG Auditorium COLLOQUIUM: Facility for Rare Isotope Beams - Scientific Opportunities and Technical Challenges Dr. Georg Bollen Michigan State...

158

Behavior Of Rare Earth Element In Geothermal Systems, A New  

Open Energy Info (EERE)

Behavior Of Rare Earth Element In Geothermal Systems, A New Behavior Of Rare Earth Element In Geothermal Systems, A New Exploration-Exploitation Tool Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Report: Behavior Of Rare Earth Element In Geothermal Systems, A New Exploration-Exploitation Tool Details Activities (32) Areas (17) Regions (0) Abstract: The goal of this four-year project was to provide a database by which to judge the utility of the rare earth elements (REE) in the exploration for and exploitation of geothermal fields in the United States. Geothermal fluids from hot springs and wells have been sampled from a number of locations, including: (1) the North Island of New Zealand (1 set of samples); (2) the Cascades of Oregon; (3) the Harney, Alvord Desert and Owyhee geothermal areas of Oregon; (4) the Dixie Valley and Beowawe fields

159

Development of a shallow heavy-oil deposit in Missouri  

SciTech Connect

Shallow deposits of heavy-oil in western Missouri have become more attractive to exploit recently. Aside from problems of producing the low-gravity, viscous oil, part of the difficulty in successfully developing these deposits has been the geologic nature of the reservoir sandstone. Recognition of the origin of the reservoir sandstone in Eastburn field as a series of point bars in an upper deltaic, fluvial distributary environment has affected the selection of drilling locations, drilling and coring procedures, estimation of reserves, and location of producing facilities. Recognition of the uneven distribution of permeability, the intergranular type of porosity, and the presence of potentially troublesome clays and iron-bearing minerals in this sandstone influenced the methods selected for evaluation, completion, and stimulation of producing wells. This teamwork approach between geologists and engineers is important in maximizing the chances for success of technically difficult enhanced oil recovery projects.

Ebanks, J.W.J.; Weber, J.F.

1982-09-27T23:59:59.000Z

160

Estimate steam-turbine losses to justify maintenance funds  

SciTech Connect

A procedure to estimate steam-turbine losses is described. The estimates are based on analytical calculations and field inspections of turbines with known performance deterioration resulting from their environment, not their construction. They are, therefore, applicable to many types of steam turbines. Common causes of deterioration are the following: solid particle erosion, deposits, increased clearances, and peening or damage from foreign material. Performance losses due to these factors are analyzed. An example of application is given.

Not Available

1982-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Political connections, bank deposits, and formal deposit insurance: Evidence from an emerging economy  

E-Print Network (OSTI)

1 Political connections, bank deposits, and formal deposit insurance: Evidence from an emerging the impact of banks' political connections on their ability to collect deposits under two different deposit, regardless of their type (state-owned or private entities), politically connected banks are able to attract

Boyer, Edmond

162

Chemical vapor deposition of epitaxial silicon  

DOE Patents (OSTI)

A single chamber continuous chemical vapor deposition (CVD) reactor is described for depositing continuously on flat substrates, for example, epitaxial layers of semiconductor materials. The single chamber reactor is formed into three separate zones by baffles or tubes carrying chemical source material and a carrier gas in one gas stream and hydrogen gas in the other stream without interaction while the wafers are heated to deposition temperature. Diffusion of the two gas streams on heated wafers effects the epitaxial deposition in the intermediate zone and the wafers are cooled in the final zone by coolant gases. A CVD reactor for batch processing is also described embodying the deposition principles of the continuous reactor.

Berkman, Samuel (Florham Park, NJ)

1984-01-01T23:59:59.000Z

163

Particle deposition in granular media: Progress report  

SciTech Connect

This paper discusses topics on particle deposition in granular media. The six topics discussed are: experimental determination of initial collection efficiency in granular beds - an assessment of the effect of instrument sensitivity and the extent of particle bounce-off; deposition of polydispersed aerosols in granular media; in situ observation of aerosol deposition in a two-dimensional model filter; solid velocity in cross-flow granular moving bed; aerosol deposition in granular moving bed; and aerosol deposition in a magnetically stabilized fluidized bed. (LSP)

Tien, Chi

1987-01-01T23:59:59.000Z

164

E-Print Network 3.0 - astronomy-related rare books Sample Search...  

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

astronomy-related rare books Search Powered by Explorit Topic List Advanced Search Sample search results for: astronomy-related rare books Page: << < 1 2 3 4 5 > >> 1 Rare Books...

165

U.S. Rare Earth Magnet Patents Table © 11-10-2014 page...  

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

Rare Earth Magnet Patents Table 11-10-2014 page 1 Disclaimer: This U.S. Rare Earth Magnet Patents Table contains a sample of the rare- earth-magnet patents issued by the U.S....

166

Resonant Inelastic X-ray Scattering of Rare-Earth and Copper Systems  

E-Print Network (OSTI)

Introduction The rare earth elements have unique andun?lled f shell of rare earth elements gives them special4d, 4f shells for rare-earth elements. This suggests that

Kvashnina, Kristina

2007-01-01T23:59:59.000Z

167

Radiation Dose Estimates from  

E-Print Network (OSTI)

Summary: Radiation Dose Estimates from Hanford Radioactive Material Releases to the Air- tantly, what radiation dose people may have received. An independent Technical Steering Panel (TSP, additionalProjectworkcouldresultin revisions of these dose estimates. April 21, 1994 Companion

168

State Energy Production Estimates  

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

State Energy Production Estimates 1960 Through 2012 2012 Summary Tables Table P1. Energy Production Estimates in Physical Units, 2012 Alabama 19,455 215,710 9,525 0 Alaska 2,052...

169

DOE Workshop - Deposition Velocity Status  

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

Delivering DOE's Vision for the Delivering DOE's Vision for the East Tennessee Technology Park Mission Safely Delivering the Department of Energy's Vision for the East Tennessee Technology Park Mission DOE Workshop Deposition Velocity Status Mike Hitchler, Manager Nuclear Facility Safety June 5, 2012 Safely Delivering DOE's Vision for the East Tennessee Technology Park Mission Existing UCOR Analyses * UCOR facilities at East Tennessee Technology Park (ETTP) and Oak Ridge National Laboratory (ORNL) use various plume models depending on when they were developed and by whom. - Some use MACCS or MACCS2 for dispersion evaluation. (~5 locations) - LLLW uses ingestion modeling (multiple locations)

170

Metal deposition using seed layers  

DOE Patents (OSTI)

Methods of forming a conductive metal layers on substrates are disclosed which employ a seed layer to enhance bonding, especially to smooth, low-roughness or hydrophobic substrates. In one aspect of the invention, the seed layer can be formed by applying nanoparticles onto a surface of the substrate; and the metallization is achieved by electroplating an electrically conducting metal onto the seed layer, whereby the nanoparticles serve as nucleation sites for metal deposition. In another approach, the seed layer can be formed by a self-assembling linker material, such as a sulfur-containing silane material.

Feng, Hsein-Ping; Chen, Gang; Bo, Yu; Ren, Zhifeng; Chen, Shuo; Poudel, Bed

2013-11-12T23:59:59.000Z

171

Types of Cost Estimates  

Directives, Delegations, and Requirements

The chapter describes the estimates required on government-managed projects for both general construction and environmental management.

1997-03-28T23:59:59.000Z

172

External Dose Estimates from  

E-Print Network (OSTI)

Appendix G External Dose Estimates from Global Fallout G-1 #12;External Radiation Exposure-MQ-003539 March 15, 2000 G-2 #12;Abstract This report provides estimates of the external radiation-62. Estimates are given on a county by county basis for each month from 1953-1972. The average population dose

173

External Dose Estimates from  

E-Print Network (OSTI)

Appendix E External Dose Estimates from NTS Fallout E-1 #12;External Radiation Exposure. 1, 1999) E-2 #12;Abstract This report provides estimates of the external radiation exposure of this report to: "Prepare crude estimates of the doses from external irradiation received by the American

174

Direct Measurement of EGR Cooler Deposit Thermal Properties for Improved Understanding of Cooler Fouling  

SciTech Connect

Exhaust gas recirculation (EGR) cooler fouling has become a significant issue for compliance with NOX emissions standards. This paper reports results of a study of fundamental aspects of EGR cooler fouling. An apparatus and procedure were developed to allow surrogate EGR cooler tubes to be exposed to diesel engine exhaust under controlled conditions. The resulting fouled tubes were removed and analyzed. Volatile and non-volatile deposit mass was measured for each tube. Thermal diffusivity of the deposited soot cake was measured by milling a window into the tube and using the Xenon flash lamp method. The heat capacity of the deposit was measured at temperatures up to 430 C and was slightly higher than graphite, presumably due to the presence of hydrocarbons. These measurements were combined to allow calculation of the deposit thermal conductivity, which was determined to be 0.041 W/mK, only ~1.5 times that of air and much lower than the 304 stainless steel tube (14.7 W/mK). The main determinant of the deposit thermal conductivity is density, which was measured to be just 2% that of the density of the primary soot particles (or 98% porous). The deposit layer thermal resistance was calculated and compared with estimates of the thermal resistance calculated from gas temperature data during the experiment. The deposit properties were also used to further analyze the temperature data collected during the experiment.

Wang, Hsin [ORNL] [ORNL; Sluder, Scott [ORNL] [ORNL; Storey, John Morse [ORNL] [ORNL

2009-01-01T23:59:59.000Z

175

Fact Sheet: Facility for Rare Isotope Beams (FRIB) Applicant Selection |  

Office of Science (SC) Website

Fact Sheet: Fact Sheet: Facility for Rare Isotope Beams (FRIB) Applicant Selection News Featured Articles Science Headlines 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Presentations & Testimony News Archives Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 12.11.08 Fact Sheet: Facility for Rare Isotope Beams (FRIB) Applicant Selection Print Text Size: A A A Subscribe FeedbackShare Page Based on the analyses and recommendations over the last decade, the U.S. Department of Energy (DOE) Office of Science determined that the establishment of a Facility for Rare Isotope Beams (FRIB) is a high priority for the future of U.S. nuclear science research. This determination and supporting rationale are reflected in the DOE/ National

176

DOE - Office of Legacy Management -- International Rare Metals Refinery Inc  

Office of Legacy Management (LM)

Rare Metals Refinery Rare Metals Refinery Inc - NY 38 FUSRAP Considered Sites Site: International Rare Metals Refinery, Inc. (NY.38 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Canadian Radium and Uranium Corporation NY.38-1 Location: 69 Kisko Avenue , Mt. Kisko , New York NY.38-1 NY.38-3 Evaluation Year: 1987 NY.38-4 Site Operations: Manufactured and distributed radium and polonium products. NY.38-5 Site Disposition: Eliminated - No Authority - Site was a commercial operation not under the jurisdiction of DOE predecessor agencies NY.38-2 NY.38-4 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Radium, Plutonium NY.38-5 Radiological Survey(s): Yes NY.38-1 NY.38-5 Site Status: Eliminated from consideration under FUSRAP

177

Rare Isotopes in Cosmic Explosions and Accelerators on Earth  

ScienceCinema (OSTI)

Rare isotopes are nature?s stepping stones to produce the heavy elements, and they are produced in large quantities in stellar explosions. Despite their fleeting existence, they shape the composition of the universe and the observable features of stellar explosions. The challenge for nuclear science is to produce and study the very same rare isotopes so as to understand the origin of the elements and a range of astronomical observations. I will review the progress that has been made to date in astronomy and nuclear physics, and the prospects of finally addressing many of the outstanding issues with the future Facility for Rare Isotope Beams (FRIB), which DOE will build at Michigan State University.

Hendrik Schatz

2010-01-08T23:59:59.000Z

178

Modeling particle deposition on HVAC heat exchangers  

SciTech Connect

Fouling of fin-and-tube heat exchangers by particle deposition leads to diminished effectiveness in supplying ventilation and air conditioning. This paper explores mechanisms that cause particle deposition on heat exchanger surfaces. We present a model that accounts for impaction, diffusion, gravitational settling, and turbulence. Simulation results suggest that some submicron particles deposit in the heat exchanger core, but do not cause significant performance impacts. Particles between 1 and 10 {micro}m deposit with probabilities ranging from 1-20% with fin edge impaction representing the dominant mechanism. Particles larger than 10 {micro}m deposit by impaction on refrigerant tubes, gravitational settling on fin corrugations, and mechanisms associated with turbulent airflow. The model results agree reasonably well with experimental data, but the deposition of larger particles at high velocities is underpredicted. Geometric factors, such as discontinuities in the fins, are hypothesized to be responsible for the discrepancy.

Siegel, J.A.; Nazaroff, W.W.

2002-01-01T23:59:59.000Z

179

Red Fork sandstone of Oklahoma: depositional history and reservoir distribution  

SciTech Connect

The Middle Pennsylvanian Red Fork sandstone formed as a result of progradation across eastern Kansas and most of Oklahoma. The Red Fork is one of several transgressive-regressive sequences (cyclothems) developed within the Desmoinesian Cherokee Group. Sea level changes, together with varying subsidence, were dominant factors controlling the general stratigraphic (correlative) characteristics of the Red Fork interval. Progradation was episodic, with sand deposition in the more active part of the basin during lower sea level stands and valley-fill deposition in the more stable areas during sea level rises. A map of Red Fork sand trends reveals an alluvial-deltaic complex covering most of Oklahoma. The Red Fork consists primarily of alluvial-valley and plain (fluvial) bodies in the northernmost part of northeastern Oklahoma, alluvial-deltaic bodies in most of the remaining parts of the shelf area, and off-shelf submarine-fan and slope basinal-floor complexes within the deeper part of the Anadarko basin. Determination of reservoir trend and genesis requires integration of rock and log data. Logs need to be calibrated to cores in order to estimate depositional environments accurately and to make a reasonable assessment of diagenetic overprints. Much of the oil and gas has been trapped in stratigraphic traps, and a significant amount of oil is in channel sandstones with trends at high angles to the structural grain. In some areas, secondary clay, in particular chloritic clay, has resulted in microporosity, high water saturation, and correspondingly low resistivities in oil reserves.

Shelton, J.W.; Fritz, R.D.; Johnson, C.

1989-03-01T23:59:59.000Z

180

Process to remove rare earth from IFR electrolyte  

DOE Patents (OSTI)

The invention is a process for the removal of rare earths from molten chloride electrolyte salts used in the reprocessing of integrated fast reactor fuel (IFR). The process can be used either continuously during normal operation of the electrorefiner or as a batch process. The process consists of first separating the actinide values from the salt before purification by removal of the rare earths. After replacement of the actinides removed in the first step, the now-purified salt electrolyte has the same uranium and plutonium concentration and ratio as when the salt was removed from the electrorefiner.

Ackerman, J.P.; Johnson, T.R.

1992-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Rare earth-transition metal scrap treatment method  

DOE Patents (OSTI)

Rare earth-transition metal (e.g. iron) scrap (e.g. Nd-Fe-B scrap) is melted to reduce the levels of tramp oxygen and nitrogen impurities therein. The tramp impurities are reduced in the melt by virtue of the reaction of the tramp impurities and the rare earth to form dross on the melt. The purified melt is separated from the dross for reuse. The oxygen and nitrogen of the melt are reduced to levels acceptable for reuse of the treated alloy in the manufacture of end-use articles, such as permanent magnets. 3 figs.

Schmidt, F.A.; Peterson, D.T.; Wheelock, J.T.; Jones, L.L.; Lincoln, L.P.

1992-02-11T23:59:59.000Z

182

Process to remove rare earth from IFR electrolyte  

DOE Patents (OSTI)

The invention is a process for the removal of rare earths from molten chloride electrolyte salts used in the reprocessing of integrated fast reactor fuel (IFR). The process can be used either continuously during normal operation of the electrorefiner or as a batch process. The process consists of first separating the actinide values from the salt before purification by removal of the rare earths. After replacement of the actinides removed in the first step, the now-purified salt electrolyte has the same uranium and plutonium concentration and ratio as when the salt was removed from the electrorefiner. 1 fig.

Ackerman, J.P.; Johnson, T.R.

1994-08-09T23:59:59.000Z

183

Orderly Deposition of Uncontaminated Graphene - Energy Innovation...  

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

Orderly Deposition of Uncontaminated Graphene Lawrence Berkeley National Laboratory Contact LBL About This Technology Technology Marketing SummaryXiaogan Liang of Berkeley Lab has...

184

Paraffin deposition in offshore oil production.  

E-Print Network (OSTI)

??The extreme environmental conditions typically encountered in offshore oil operations lead to a number of problems. Cool deep sea temperatures promote particle formation and deposition… (more)

Elphingstone, Gerald Mason

2012-01-01T23:59:59.000Z

185

Predicting particle selection by deposit feeders  

Science Journals Connector (OSTI)

Jul 15, 1977 ... Abstract. A feeding model for a generalized, benthic deposit feeder is derived from a filter- ... study was supported by Energy and Research De-.

2000-01-08T23:59:59.000Z

186

Wet and dry deposition of Chernobyl releases  

Science Journals Connector (OSTI)

... (refs 16-18). An analysis of the available monitoring data indicates that the product wrf{ for deposition of 131I and 137Cs

M. J. Clark; F. B. Smith

1988-03-17T23:59:59.000Z

187

Recoil tritium reaction in rare gas-ethane solid mixtures at ultralow temperature  

SciTech Connect

Recoil T atom reactions have been studied in Ar (or Kr or Xe)-C/sub 2/H/sub 6/-D/sub 2/D/sub 6/ mixtures at 11-20 and 77 K. The relative yields of hydrogen (HT + DT) increase with a decrease of ethane concentration, while those of ethane (C/sub 2/H/sub 5/T + C/sub 2/D/sub 5/T) decrease complementarily. The results indicate that hydrogen is formed by both hot and thermal T atoms, while ethane is formed only by the hot T atoms. The thermal T atoms abstract hydrogen from ethane by quantum mechanical tunneling even at 11-20 K as well as 77 K. The H/D abstraction isotope effect for the thermal T atom reaction with C/sub 2/H/sub 6/ and C/sub 2/D/sub 6/ was measured at 0.2 mol % ethane in rare gas solid. The isotope effects in Ar are 1.0 at 77 K and 3.9 at 18 K, whereas those in Xe are 4.4 at 77 K and 1.0 at 20 K. The isotope effects in Kr are 1.9 at 77 K and 1.1 at 11 K. The average energy loss of hot T atoms in rare gas solid was estimated and compared with that in the gas phase.

Lee, K.P.; Ito, Y.; Fujitani, Y.; Miyazaki, T.; Fueki, K.; Aratono, Y.; Saeki, M.; Tachikawa, E.

1986-10-09T23:59:59.000Z

188

A depositional model for late Jurassic Reef Building in the East Texas Basin  

SciTech Connect

The authors propose a depositional setting for the Upper Jurassic reef facies occurring at the upper Cotton Valley Lime, (Gilmer) sequence boundary in the East Texas Basin. The development of uncommonly thick, microbially bound reefal buildups positioned near the western margin of the basin was controlled by sea-level variations and gravity faulting, suggested to be concurrent. Gas bearing reefs occur as isolated features along faulted margins and have been successfully located using 3-D seismic. Reefs of this type and age appear to be rare in their occurrence worldwide. Structurally generated circumstances facilitated margin bypass of terrigenous clastics shed from the north and west. Protection from clastic influx contributed to conditions required for development of the 400 feet of reefal buildup penetrated by the Marathon Oil Company Poth No. 1 during early 1993. Core from this well provides insight into character, composition, and depositional setting of reefs along the western flank of the East Texas Basin during Late Jurassic time.

Norwood, E.M. [Marathon Oil Co., Tyler, TX (United States); Brinton, L. [Marathon Oil Co., Littleton, CO (United States)

1996-12-31T23:59:59.000Z

189

A depositional model for late Jurassic Reef Building in the East Texas Basin  

SciTech Connect

The authors propose a depositional setting for the Upper Jurassic reef facies occurring at the upper Cotton Valley Lime, (Gilmer) sequence boundary in the East Texas Basin. The development of uncommonly thick, microbially bound reefal buildups positioned near the western margin of the basin was controlled by sea-level variations and gravity faulting, suggested to be concurrent. Gas bearing reefs occur as isolated features along faulted margins and have been successfully located using 3-D seismic. Reefs of this type and age appear to be rare in their occurrence worldwide. Structurally generated circumstances facilitated margin bypass of terrigenous clastics shed from the north and west. Protection from clastic influx contributed to conditions required for development of the 400 feet of reefal buildup penetrated by the Marathon Oil Company Poth No. 1 during early 1993. Core from this well provides insight into character, composition, and depositional setting of reefs along the western flank of the East Texas Basin during Late Jurassic time.

Norwood, E.M. (Marathon Oil Co., Tyler, TX (United States)); Brinton, L. (Marathon Oil Co., Littleton, CO (United States))

1996-01-01T23:59:59.000Z

190

Dynamic Effective-Field Scheme for Rare-Earth Systems  

Science Journals Connector (OSTI)

We demonstrate the importance of including the dynamical exchange-interaction term in the Hamiltonian of a rare-earth system. The probability distribution of the dynamic exchange field is derived in the molecular field approximation. The result is exemplified for the zero-field magnetization and crystal field spectroscopy of NdSb.

Albert Furrer and Heinz Heer

1973-11-26T23:59:59.000Z

191

Rare Isotope Beams for the 21st Century  

ScienceCinema (OSTI)

In a scientific keynote address on Friday, June 12 at Michigan State University (MSU) in East Lansing, James Symons, Director of Berkeley Labs Nuclear Science Division (NSD), discussed the exciting research prospects of the new Facility for Rare Isotope Beams (FRIB) to be built at MSUs National Superconducting Cyclotron Laboratory.

James Symons

2010-01-08T23:59:59.000Z

192

Molecular Photodynamics in Rare Gas Solids V. A. Apkarian*  

E-Print Network (OSTI)

Molecular Photodynamics in Rare Gas Solids V. A. Apkarian* Department of Chemistry, University Processes 1490 III. Sample Preparation and Morphology 1492 IV. Photon-Induced Dissociation 1493 V. Perfect I. Introduction A molecular level understanding of dynamics in condensed media is one of the current

Apkarian, V. Ara

193

Cathode-Luminescence of Rare Earths in Coal Ash  

Science Journals Connector (OSTI)

... Samples of a number of Indian coals (from Darjeeling, Assam, Raniganj, Jharia and Hyderabad) were incinerated in thin layers ... in an electric furnace at 400° C. The presence of rare earths in the ashes so obtained could not be detected by arc spectrographic analysis with a current of 10 ...

BIBHUTI MUKHERJEE

1949-03-12T23:59:59.000Z

194

Status of Rare Kaon Decay Experiments at BNL  

E-Print Network (OSTI)

Status of Rare Kaon Decay Experiments at BNL Toshio Numao TRIUMF June 9, at CAP2003 K #12;s d z;#12;#12;Improvements RS chamber Z resolution Energy resolution 2002 1998 #12;#12;L0- Previous search: 5.9 Ã? 10-7 KOPIO is waiting for us. #12;

195

Colloidal particle deposition in turbulent flow  

SciTech Connect

A theoretical analysis is presented which describes the initial deposition of monodispersed spherical colloidal particles from a steady fully developed turbulent flow onto conduit walls. When the net particle-conduit electrical interaction potential is attractive, particle deposition is shown to be often governed by turbulent hydrodynamics. When the net particle-conduit electrical interaction potential possess a repulsive maximum, particle deposition to first order is uniform and depends solely on electrical interaction effects. The developed theoretical model specialized to orifice deposition with the use of Harwell Flow3D turbulence modelling software qualitatively described the deposition of 0.5 {mu}m silica particles onto glass orifices from an aqueous suspension. The effect of the electrical double layer on the rate of colloidal particle deposition in laminar flow has been described by Spielman and Friedlander (1), Dahneke (2), Bowen et al. (3) and Bowen and Epstein (4). This article describes the extension of their work to colloidal particle deposition under steady fully developed turbulent flow conditions. This article also reports the results of orifice particle deposition experiments which were conducted to qualitatively investigate the developed theoretical model.

Morton, D.S.

1994-05-01T23:59:59.000Z

196

Constraining Mercury Oxidation Using Wet Deposition  

E-Print Network (OSTI)

Constraining Mercury Oxidation Using Wet Deposition Noelle E. Selin and Christopher D. Holmes mercury oxidation [Selin & Jacob, Atmos. Env. 2008] 30 60 90 120 150 30 60 90 120 150 30 60 90 120 150 30 Influences on Mercury Wet Deposition · Hg wet dep = f(precipitation, [Hg(II)+Hg(P)]) Correlation (r2) between

Selin, Noelle Eckley

197

Simulation of Coal Ash Particle Deposition Experiments  

Science Journals Connector (OSTI)

Simulation of Coal Ash Particle Deposition Experiments† ... Ichikawa et al.(7) measured deposition behavior for ash particles from ashing tests for a series of five coals, using a nominally 1 m tall × 60 mm diameter ash-heating tube that was fitted with a cooled, temperature-controlled particle impact probe oriented at a 30° angle to the atmospheric pressure air flow. ...

Weiguo Ai; John M. Kuhlman

2011-01-20T23:59:59.000Z

198

MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS  

E-Print Network (OSTI)

LBNL-49339 MODELING PARTICLE DEPOSITION ON HVAC HEAT EXCHANGERS J.A. Siegel1,3 * and W.W. Nazaroff2 Department of Energy under contract DE-AC03-76SF00098. #12;MODELING PARTICLE DEPOSITION ON HVAC HEAT, such as discontinuities in the fins, are hypothesized to be responsible for the discrepancy. INDEX TERMS HVAC, Fouling

199

Estimation of coalbed methane resources using a probabilistic scheme from geological data of coal basin in Mongolia  

Science Journals Connector (OSTI)

A general material balance equation of coal deposits was developed for gas and water by King (1993). The original gas in place for CBM can be estimated from the initial drilling core data or production data. The ...

Youngmin Kim; Budzaya Unurbayan; Jeonghwan Lee

2014-08-01T23:59:59.000Z

200

Introduction Estimation paramtrique (exemples)  

E-Print Network (OSTI)

Introduction Estimation paramétrique (exemples) FARMAN : Laboratoire SATIE Jean-Pierre Barbot J.P. Barbot Séminaires FARMAN (Traitement du Signal) - 1/36 #12;Introduction Estimation paramétrique (exemples de paramètres de synchronisation (VDSL 2) J.P. Barbot Séminaires FARMAN (Traitement du Signal) - 2

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


201

Internal Dose Estimates from  

E-Print Network (OSTI)

Appendix H Internal Dose Estimates from Global Fallout H-1 #12;Radiation Dose to the Population. 263-MQ-008090 September 30, 2000 H-2 #12;Radiation Dose to the Population of the Continental United Site Part I. Estimates of Dose Lynn R. Anspaugh Lynn R. Anspaugh, Consulting Salt Lake City, UT Report

202

Estimating Specialty Costs  

Directives, Delegations, and Requirements

Specialty costs are those nonstandard, unusual costs that are not typically estimated. Costs for research and development (R&D) projects involving new technologies, costs associated with future regulations, and specialty equipment costs are examples of specialty costs. This chapter discusses those factors that are significant contributors to project specialty costs and methods of estimating costs for specialty projects.

1997-03-28T23:59:59.000Z

203

Geology and recognition criteria for uranium deposits of the quartz-pebble conglomerate type. Final report  

SciTech Connect

This report is concerned with Precambrian uraniferous conglomerates. This class of deposit has been estimated to contain between approximately 16 and 35 percent of the global uranium reserve in two rather small areas, one in Canada, the other in South Africa. Similar conglomerates, which are often gold-bearing, are, however, rather widespread, being found in parts of most Precambrian shield areas. Data have been synthesized on the geologic habitat and character of this deposit type. The primary objective has been to provide the most relevant geologic observations in a structural fashion to allow resource studies and exploration to focus on the most prospective targets in the shortest possible time.

Button, A.; Adams, S.S.

1981-03-01T23:59:59.000Z

204

Nuclear data processing for energy release and deposition calculations in the MC21 Monte Carlo code  

SciTech Connect

With the recent emphasis in performing multiphysics calculations using Monte Carlo transport codes such as MC21, the need for accurate estimates of the energy deposition-and the subsequent heating - has increased. However, the availability and quality of data necessary to enable accurate neutron and photon energy deposition calculations can be an issue. A comprehensive method for handling the nuclear data required for energy deposition calculations in MC21 has been developed using the NDEX nuclear data processing system and leveraging the capabilities of NJOY. The method provides a collection of data to the MC21 Monte Carlo code supporting the computation of a wide variety of energy release and deposition tallies while also allowing calculations with different levels of fidelity to be performed. Detailed discussions on the usage of the various components of the energy release data are provided to demonstrate novel methods in borrowing photon production data, correcting for negative energy release quantities, and adjusting Q values when necessary to preserve energy balance. Since energy deposition within a reactor is a result of both neutron and photon interactions with materials, a discussion on the photon energy deposition data processing is also provided. (authors)

Trumbull, T. H. [Knolls Atomic Power Laboratory, PO Box 1072, Schenectady, NY 12301 (United States)

2013-07-01T23:59:59.000Z

205

Method for gas-metal arc deposition  

DOE Patents (OSTI)

Method and apparatus for gas-metal arc deposition of metal, metal alloys, and metal matrix composites. The apparatus contains an arc chamber for confining a D.C. electrical arc discharge, the arc chamber containing an outlet orifice in fluid communication with a deposition chamber having a deposition opening in alignment wiht the orifice for depositing metal droplets on a coatable substrate. Metal wire is passed continuously into the arc chamber in alignment with the orifice. Electric arcing between the metal wire anode and the orifice cathode produces droplets of molten metal from the wire which pass through the orifice and into the deposition chamber for coating a substrate exposed at the deposition opening. When producing metal matrix composites, a suspension of particulates in an inert gas enters the deposition chamber via a plurality of feed openings below and around the orifice so that reinforcing particulates join the metal droplets to produce a uniform mixture which then coats the exposed substrate with a uniform metal matrix composite.

Buhrmaster, Carol L. (Corning, NY); Clark, Denis E. (Idaho Falls, ID); Smartt, Herschel B. (Idaho Falls, ID)

1990-01-01T23:59:59.000Z

206

Method for gas-metal arc deposition  

DOE Patents (OSTI)

Method and apparatus for gas-metal arc deposition of metal, metal alloys, and metal matrix composites are disclosed. The apparatus contains an arc chamber for confining a D.C. electrical arc discharge, the arc chamber containing an outlet orifice in fluid communication with a deposition chamber having a deposition opening in alignment with the orifice for depositing metal droplets on a coatable substrate. Metal wire is passed continuously into the arc chamber in alignment with the orifice. Electric arcing between the metal wire anode and the orifice cathode produces droplets of molten metal from the wire which pass through the orifice and into the deposition chamber for coating a substrate exposed at the deposition opening. When producing metal matrix composites, a suspension of particulates in an inert gas enters the deposition chamber via a plurality of feed openings below and around the orifice so that reinforcing particulates join the metal droplets to produce a uniform mixture which then coats the exposed substrate with a uniform metal matrix composite. 1 fig.

Buhrmaster, C.L.; Clark, D.E.; Smartt, H.B.

1990-11-13T23:59:59.000Z

207

Apparatus for gas-metal arc deposition  

DOE Patents (OSTI)

Apparatus for gas-metal arc deposition of metal, metal alloys, and metal matrix composites. The apparatus contains an arc chamber for confining a D.C. electrical arc discharge, the arc chamber containing an outlet orifice in fluid communication with a deposition chamber having a deposition opening in alignment with the orifice for depositing metal droplets on a coatable substrate. Metal wire is passed continuously into the arc chamber in alignment with the orifice. Electric arcing between the metal wire anode and the orifice cathode produces droplets of molten metal from the wire which pass through the orifice and into the deposition chamber for coating a substrate exposed at the deposition opening. When producing metal matrix composites, a suspenion of particulates in an inert gas enters the deposition chamber via a plurality of feed openings below and around the orifice so that reinforcing particulates join the metal droplets to produce a uniform mixture which then coats the exposed substrate with a uniform metal matrix composite.

Buhrmaster, Carol L. (Corning, NY); Clark, Denis E. (Idaho Falls, ID); Smartt, Herschel B. (Idaho Falls, ID)

1991-01-01T23:59:59.000Z

208

Influence of mechanoactivation on rare earths leaching from phosphogypsum  

Science Journals Connector (OSTI)

The influence of mechanoactivation on the overall solubility of CaSO4 · 2H2O and of phosphogypsum in water and in diluted acids (10% HCl, 7% H2SO4) as well as on the leaching of rare earths from phosphogypsum have been studied. The mechanoactivation is performed in a centrifugal ball mill in air and in suspension with the acids mentioned above. Part of the experimental results are qualitatively explained considering the partial dehydration of the CaSO4 · 2H2O during the activation in air as well as considering the crystal structure disrupted by mechanoactivation. A dissolved fraction, considerably enriched in rare earths (compared to the initial phosphogypsum) is obtained as a result of H2SO4 treatment of the samples activated in water solution.

D. Todorovsky; A. Terziev; M. Milanova

1997-01-01T23:59:59.000Z

209

Magnetic Symmetry of Rare-Earth Orthochromites and Orthoferrites  

Science Journals Connector (OSTI)

A new magnetic symmetry of the rare-earth orthochromites and orthoferrites (RMO3) below the second Néel temperature due to the reordering of the rare-earth spins is proposed. It is shown that the magnetic symmetry group is lowered to the subgroup of index two, thereby keeping the unit cell invariant. The proposed symmetry is shown to be consistent with the previously observed spin configuration of RMO3 such as GdCrO3, DyFeO3, and DyCrO3, and would also be consistent with those of other RMO3. Although symmetry arguments and the calculation of the free energy show that two spin configurations are stable, in GdCrO3, a future measurement of the magnetoelectric tensor would determine which configuration GdCrO3 has. It is further predicted that the magnetoelectric effect should be observed in any RMO3 below the second Néel temperature.

Tsuyoshi Yamaguchi and Kunirô Tsushima

1973-12-01T23:59:59.000Z

210

New physics in CP asymmetries and rare B decays  

Science Journals Connector (OSTI)

We review and update the effects of physics beyond the standard model on CP asymmetries in B decays. These asymmetries can be significantly altered if there are important new-physics contributions to Bq0-Bq0¯ mixing. This same new physics will, therefore, also contribute to rare, flavor-changing B decays. Through a study of such decays, we show that it is possible to partially distinguish the different models of new physics.

Michael Gronau and David London

1997-03-01T23:59:59.000Z

211

Estimation of Groundwater Recharge at Pahute Mesa using the Chloride Mass-Balance Method  

SciTech Connect

Groundwater recharge on Pahute Mesa was estimated using the chloride mass-balance (CMB) method. This method relies on the conservative properties of chloride to trace its movement from the atmosphere as dry- and wet-deposition through the soil zone and ultimately to the saturated zone. Typically, the CMB method assumes no mixing of groundwater with different chloride concentrations; however, because groundwater is thought to flow into Pahute Mesa from valleys north of Pahute Mesa, groundwater flow rates (i.e., underflow) and chloride concentrations from Kawich Valley and Gold Flat were carefully considered. Precipitation was measured with bulk and tipping-bucket precipitation gauges installed for this study at six sites on Pahute Mesa. These data, along with historical precipitation amounts from gauges on Pahute Mesa and estimates from the PRISM model, were evaluated to estimate mean annual precipitation. Chloride deposition from the atmosphere was estimated by analyzing quarterly samples of wet- and dry-deposition for chloride in the bulk gauges and evaluating chloride wet-deposition amounts measured at other locations by the National Atmospheric Deposition Program. Mean chloride concentrations in groundwater were estimated using data from the UGTA Geochemistry Database, data from other reports, and data from samples collected from emplacement boreholes for this study. Calculations were conducted assuming both no underflow and underflow from Kawich Valley and Gold Flat. Model results estimate recharge to be 30 mm/yr with a standard deviation of 18 mm/yr on Pahute Mesa, for elevations >1800 m amsl. These estimates assume Pahute Mesa recharge mixes completely with underflow from Kawich Valley and Gold Flat. The model assumes that precipitation, chloride concentration in bulk deposition, underflow and its chloride concentration, have been constant over the length of time of recharge.

Cooper, Clay A [DRI] [DRI; Hershey, Ronald L [DRI] [DRI; Healey, John M [DRI] [DRI; Lyles, Brad F [DRI] [DRI

2013-07-01T23:59:59.000Z

212

State Emissions Estimates  

Gasoline and Diesel Fuel Update (EIA)

Estimates of state energy-related carbon dioxide emissions Estimates of state energy-related carbon dioxide emissions Because energy-related carbon dioxide (CO 2 ) constitutes over 80 percent of total emissions, the state energy-related CO 2 emission levels provide a good indicator of the relative contribution of individual states to total greenhouse gas emissions. The U.S. Energy Information Administration (EIA) emissions estimates at the state level for energy-related CO 2 are based on data contained in the State Energy Data System (SEDS). 1 The state-level emissions estimates are based on energy consumption data for the following fuel categories: three categories of coal (residential/commercial, industrial, and electric power sector); natural gas; and ten petroleum products including-- asphalt and road oil, aviation gasoline, distillate fuel, jet fuel, kerosene, liquefied petroleum gases

213

Cost Estimating Guide  

Directives, Delegations, and Requirements

This Guide provides uniform guidance and best practices that describe the methods and procedures that could be used in all programs and projects at DOE for preparing cost estimates. No cancellations.

2011-05-09T23:59:59.000Z

214

: Helmholtz machine estimation .  

E-Print Network (OSTI)

: Helmholtz machine density estimation . . : . . . (supervised learning) , (active learning) (query learning) [1, 3]. . (unsupervised learning), . , [5]. . Helmholtz machine , . Helmholtz machine : Helmholtz machine [2] . Helmholtz machine (generative network) (recognition network) . , , . Helmholtz machine (self

215

Selective deposition of silicon and silicon-germanium alloys by rapid thermal chemical vapor deposition  

SciTech Connect

Selective deposition of SiGe alloys by rapid thermal deposition has been studied using a commercially available Rapid Thermal Chemical Vapor Deposition (RTCVD) cluster tool. The precursors used in this work were dichlorosilane and germane diluted in either hydrogen or argon. An initial characterization was performed to find the appropriate temperature and GeH{sub 4} flow ranges to deposit epitaxial layers with low surface roughness. For layers with higher germanium concentration lower deposition temperatures are required to minimize surface roughness. The effects of the dilutant gas on the deposition were examined. An H{sub 2} dilutant affects the deposition by consuming chlorine released by the SiCl{sub 2}H{sub 2} and forming HCl. When Ar is used as the dilutant, more chlorine is available for other reactions that can result in etching of the silicon surface. Finally, the effects of pre-deposition treatment were determined. When compared to a wet HF dip, a gas/vapor phase HF/methanol native oxide removal treatment appears to increase the initiation time for the epitaxial deposition reaction. This is most likely due to increased fluorine termination of the surface. When a wet HF or HF/methanol native oxide removal is followed by a UV-Cl{sub 2} process, the deposition reaction initiation time is reduced. The UV-Cl{sub 2} process was also found to etch silicon through the native oxide.

Grant, J.M.; Ang, M.; Allen, L.R. [Sharp Microelectronics Technology, Inc., Camas, WA (United States)

1996-12-01T23:59:59.000Z

216

Physics and Outlook for Rare, All-neutral Eta Decays  

SciTech Connect

The $\\eta$ meson provides a laboratory to study isospin violation and search for new flavor-conserving sources of C and CP violation with a sensitivity approaching $10^{-6}$ of the isospin-conserving strong amplitude. Some of the most interesting rare $\\eta$ decays are the neutral modes, yet the effective loss of photons from the relatively common decay $\\eta \\rightarrow 3\\pi^0 \\rightarrow 6\\gamma$ (33$\\%$) has largely limited the sensitivity for decays producing 3-5$\\gamma$'s. Particularly important relevant branches include the highly suppressed $\\eta \\rightarrow \\pi^0 2\\gamma \\rightarrow 4\\gamma$, which provides a rare window on testing models of $O(p^6)$ contributions in ChPTh, and $\\eta \\rightarrow 3\\gamma$ and $\\eta \\rightarrow 2\\pi^0 \\gamma \\rightarrow 5\\gamma$ which provide direct constraints on C violation in flavor-conserving processes. The substitution of lead tungstate in the forward calorimeter of the GluEx setup in Jefferson Lab's new Hall D would allow dramatically improved measurements. The main niche of this facility, which we call the JLab Eta Factory (JEF), would be $\\eta$ decay neutral modes. However, this could likely be expanded to rare $\\eta'(958)$ decays for low energy QCD studies as well as $\\eta$ decays involving muons for new physics searches.

Mack, David J. [JLAB

2014-06-01T23:59:59.000Z

217

Deposition of Platinum Nanoparticles on Carbon Nanotubes by Supercriti...  

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

Deposition of Platinum Nanoparticles on Carbon Nanotubes by Supercritical Fluid Method. Deposition of Platinum Nanoparticles on Carbon Nanotubes by Supercritical Fluid Method....

218

Quaternary Borate Deposits As A Geothermal Exploration Tool In...  

Open Energy Info (EERE)

Borate Deposits As A Geothermal Exploration Tool In The Great Basin Abstract A close spatial relationship exists between Quaternary borate deposits and moderate to high...

219

Supercritical Fluid Immersion Deposition: A New Process for Selective...  

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

property of immersion deposition, enables the SFID technique to selectively deposit metal films in small features. SFID may also provide a new method to fabricate palladium...

220

The Process Fundamentals and Parameters of Electro-Spark Deposition.  

E-Print Network (OSTI)

??Electrospark Deposition (ESD) is a micro-bonding process that is capable of depositing wear and corrosion resistance coating to repair, to improve and to extend the… (more)

Tang, Siu Kei

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Resuspension and dry deposition research needs  

SciTech Connect

The author concludes that better predictive models are needed for the signifcant health, ecological, and economic impacts of resuspended particles and their subsequent dry deposition. Both chemical and radioactive aerosols are discussed. (PSB)

Sehmel, G.A.

1983-01-01T23:59:59.000Z

222

Linked Deposit Loan Program (West Virginia)  

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

The Linked Deposit Loan Program is targeted at small, private firms with 50 or fewer employees and gross annual revenues of $5 million or less comes. This loan offered through the West Virginia...

223

Small Business Linked Deposit Program (Oklahoma)  

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

The Small Business Linked Deposit Program provides below-market interest rates for qualified small businesses and certified industrial parks through local financing sources. Loans are for a two...

224

CALCIUM CARBONATE DEPOSITION IN GEOTHERMAL WELLBORES  

E-Print Network (OSTI)

geothermal energy exploration and development are most important. Geothermal resources in Costa Rica have of energy development in Costa Rica. The Miravalles geothermCALCIUM CARBONATE DEPOSITION IN GEOTHERMAL WELLBORES MIRAVALLES GEOTHERMAL FIELD COSTA RICA

Stanford University

225

Part I: Typology of Uranium Deposits  

Science Journals Connector (OSTI)

A variety of global and regional classification schemes for uranium deposits have been proposed in the past by a number of geoscientists including Heinrich (1958), Roubault (1958), Ruzicka (1971), Ziegler (197...

Franz J. Dahlkamp

2009-01-01T23:59:59.000Z

226

Dating Fan Deposits with Cosmogenic Nuclides  

Science Journals Connector (OSTI)

Boulders are preferable to smaller clasts in that ... time since deposition on the fan. Large boulders are produced through rapid large-scale mass ... to the fan in debris flows or other flood events. Although in...

Susan Ivy-Ochs; Miriam Dühnforth…

2013-01-01T23:59:59.000Z

227

Semiconductor assisted metal deposition for nanolithography applications  

DOE Patents (OSTI)

An article of manufacture and method of forming nanoparticle sized material components. A semiconductor oxide substrate includes nanoparticles of semiconductor oxide. A modifier is deposited onto the nanoparticles, and a source of metal ions are deposited in association with the semiconductor and the modifier, the modifier enabling electronic hole scavenging and chelation of the metal ions. The metal ions and modifier are illuminated to cause reduction of the metal ions to metal onto the semiconductor nanoparticles.

Rajh, Tijana (Naperville, IL); Meshkov, Natalia (Downers Grove, IL); Nedelijkovic, Jovan M. (Belgrade, YU); Skubal, Laura R. (West Brooklyn, IL); Tiede, David M. (Elmhurst, IL); Thurnauer, Marion (Downers Grove, IL)

2001-01-01T23:59:59.000Z

228

Semiconductor assisted metal deposition for nanolithography applications  

DOE Patents (OSTI)

An article of manufacture and method of forming nanoparticle sized material components. A semiconductor oxide substrate includes nanoparticles of semiconductor oxide. A modifier is deposited onto the nanoparticles, and a source of metal ions are deposited in association with the semiconductor and the modifier, the modifier enabling electronic hole scavenging and chelation of the metal ions. The metal ions and modifier are illuminated to cause reduction of the metal ions to metal onto the semiconductor nanoparticles.

Rajh, Tijana (Naperville, IL); Meshkov, Natalia (Downers Grove, IL); Nedelijkovic, Jovan M. (Belgrade, YU); Skubal, Laura R. (West Brooklyn, IL); Tiede, David M. (Elmhurst, IL); Thurnauer, Marion (Downers Grove, IL)

2002-01-01T23:59:59.000Z

229

Some methods of oil and gas reserve estimation in Azerbaijan  

SciTech Connect

This article deals with the scientific and practical problems related to estimating oil and gas reserves in terrigenous reservoirs of the Productive Series of middle Pliocene and in Upper Cretaceous volcanic and sedimentary rocks. The deposits in question are spread over onshore Azerbaijan and adjacent offshore areas in the Caspian Sea and are approximately 6.5 km deep. This article presents lithologic, stratigraphic, and petrophysical criteria used for selecting prospects for reserve estimation. Also presented are information on structure of rocks and estimation of their lithologic and physical properties. New methods for the interpretation and application of petrophysical and logging data, as well as statistical estimation of reserves, in complex volcaniclastic reservoir rocks, are also discussed.

Abasov, M.T.; Buryakovsky, L.A.; Kondrushkin, Y.M.; Dzhevanshir, R.D.; Bagarov, T.Y. [Azerbaijan Academy of Sciences, Baku (Azerbaijan); Chilingar, G.V. [Univ. of Southern California, Los Angeles, CA (United States). Dept. of Civil and Environmental Engineering

1997-08-01T23:59:59.000Z

230

Development of Diffusion barrier coatings and Deposition Technologies for Mitigating Fuel Cladding Chemical Interactions (FCCI)  

SciTech Connect

The goal of this project is to develop diffusion barrier coatings on the inner cladding surface to mitigate fuel-cladding chemical interaction (FCCI). FCCI occurs due to thermal and radiation enhanced inter-diffusion between the cladding and fuel materials, and can have the detrimental effects of reducing the effective cladding wall thickness and lowering the melting points of the fuel and cladding. The research is aimed at the Advanced Burner Reactor (ABR), a sodium-cooled fast reactor, in which higher burn-ups will exacerbate the FCCI problem. This project will study both diffusion barrier coating materials and deposition technologies. Researchers will investigate pure vanadium, zirconium, and titanium metals, along with their respective oxides, on substrates of HT-9, T91, and oxide dispersion-strengthened (ODS) steels; these materials are leading candidates for ABR fuel cladding. To test the efficacy of the coating materials, the research team will perform high-temperature diffusion couple studies using both a prototypic metallic uranium fuel and a surrogate�¢����the rare-earth element lanthanum. Ion irradiation experiments will test the stability of the coating and the coating-cladding interface. A critical technological challenge is the ability to deposit uniform coatings on the inner surface of cladding. The team will develop a promising non-line-of-sight approach that uses nanofluids . Recent research has shown the feasibility of this simple yet novel approach to deposit coatings on test flats and inside small sections of claddings. Two approaches will be investigated: 1) modified electrophoretic deposition (MEPD) and 2) boiling nanofluids. The coatings will be evaluated in the as-deposited condition and after sintering.

Sridharan, Kumar; Allen, Todd; Cole, James

2013-02-27T23:59:59.000Z

231

COLLISIONS OF HALOGEN (2P) AND RARE GAS (1S) ATOMS  

E-Print Network (OSTI)

involving 2p excited states of alkali atoms, with groundstate rare gas atoms (RG), though other systems have been2p ) AND RARE GAS (IS) ATOMS Christopher Hank Becker (Ph. D.

Becker, Christopher Hank

2011-01-01T23:59:59.000Z

232

DOE Seeks Your Novel Ideas for Recovery of Rare Earth Elements...  

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

Seeks Your Novel Ideas for Recovery of Rare Earth Elements from Coal and Coal Byproducts DOE Seeks Your Novel Ideas for Recovery of Rare Earth Elements from Coal and Coal...

233

Atmospheric distribution of polycyclic aromatic hydrocarbons and deposition to Galveston Bay, Texas, USA  

Science Journals Connector (OSTI)

Estimates of the atmospheric deposition to Galveston Bay of polycyclic aromatic hydrocarbons (PAHs) are made using precipitation and meteorological data that were collected continuously from 2 February 1995 to 6 August 1996 at Seabrook, TX, USA. Particulate and vapor phase \\{PAHs\\} in ambient air and particulate and dissolved phases in rain samples were collected and analyzed. More than 95% of atmospheric \\{PAHs\\} were in the vapor phase and about 73% of \\{PAHs\\} in the rain were in the dissolved phase. Phenanthrene and napthalene were the dominant compounds in air vapor and rain dissolved phases, respectively, while 5 and 6 ring PAH were predominant in the particulate phase of both air and rain samples. Total PAH concentrations ranged from 4 to 161 ng m?3 in air samples and from 50 to 312 ng l?1 in rain samples. Temporal variability in total PAH air concentrations were observed, with lower concentrations in the spring and fall (4–34 ng m ?3) compared to the summer and winter (37–161 ng m?3). \\{PAHs\\} in the air near Galveston Bay are derived from both combustion and petroleum vaporization. Gas exchange from the atmosphere to the surface water is estimated to be the major deposition process for \\{PAHs\\} (1211 ?g m? 2 yr? 1), relative to wet deposition (130 ?g m?2 yr? 1) and dry deposition (99 ?g m?2 yr? 1). Annual deposition of \\{PAHs\\} directly to Galveston Bay from the atmosphere is estimated as 2  t yr?1.

June-Soo Park; Terry L. Wade; Stephen Sweet

2001-01-01T23:59:59.000Z

234

Atmospheric dispersion and deposition of iodine-131 released from the Hanford Site  

SciTech Connect

Approximately 2.6x10{sup 4} TBq (700,000 curies) of iodine-131 were released to the air from reactor fuel processing plants on the Hanford Site in southcentral Washington State from December 1944 through December 1949. The Hanford Environmental Dose Reconstruction (HEDR) Project developed a suite of codes to estimate the doses that might have resulted from these releases. The Regional Atmospheric Transport Code for Hanford Emission Tracking (RATCHET) computer code is part of this suite. The RATCHET code implements a Lagrangian-trajectory, Gaussian-puff dispersion model that uses hourly meteorological and release rate data to estimate daily time-integrated air concentrations and surface contamination for use in dose estimates. In this model, iodine is treated as a mixture of three species (nominally, inorganic gases, organic gases, and particles). Model deposition parameters are functions of the mixture and meteorological conditions. A resistance model is used to calculate dry deposition velocities. Equilibrium between concentrations in the precipitation and the air near the ground is assumed in calculating wet deposition of gases, and irreversible washout of the particles is assumed. RATCHET explicitly treats the uncertainties in model parameters and meteorological conditions. Uncertainties in iodine-131 release rates and partitioning among the nominal species are treated by varying model input. The results of 100 model runs for December 1944 through December 1949 indicate that monthly average air concentrations and deposition have uncertainties ranging from a factor of two near the center of the time-integrated plume to more than an order of magnitude near the edge. These results indicate that -10% of the iodine-131 released to the atmosphere decayed during transit in the study area, -56% was deposited within the study area, and the remaining 34% was transported out of the study area while still in the air.

Ramsdell, J.V.; Simonen, C.A.; Burk, K.W.; Stage, S.A.

1994-06-01T23:59:59.000Z

235

Chemical vapor deposition of amorphous silicon films from disilane  

SciTech Connect

Amorphous silicon films for fabrication of solar cells have been deposited by thermal chemical vapor deposition (CVD) from disilane (Si/sub 2/H/sub 6/) using a tubular flow reactor. A mathematical description for the CVD reactor was developed and solved by a numerical procedure. The proposed chemical reaction network for the model is based on silylene (SiH/sub 2/) insertion in the gas phase and film growth from SiH/sub 2/ and silicon polymers (Si/sub n/N/sub 2n/, n approx. 10). Estimates of the rate constants have been obtained for trisilane decomposition, silicon polymer formation, and polymer dehydrogenation. The silane unimolecular decomposition rate constants were corrected for pressure effects. The model behavior is compared to the experimental results over the range of conditions: reactor temperature (360 to 485/sup 0/C), pressures (2 to 48 torr), and gas holding time (1 to 70 s). Within the above range of conditions, film growth rate varies from 0.01 to 30 A/s. Results indicate that silicon polymers are the main film precursors for gas holding times greater than 3 s. Film growth by silylene only becomes important at short holding times, large inert gas dilution, and positions near the beginning of the reactor hot zone.

Bogaert, R.J.

1986-01-01T23:59:59.000Z

236

Hydrocarbon and Deposit Morphology Effects on EGR Cooler Deposit Stability and Removal  

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

This paper reports on studies carried out at ORNL to examine the shear force required to remove particles from a well-developed EGR cooler deposit.

237

Crystal Fields and the Effective-Point-Charge Model in the Rare-Earth Pnictides  

Science Journals Connector (OSTI)

Neutron scattering and specific-heat studies of the crystal fields in the rare-earth monophosphides are reported. It is found that the fourth-order crystal-field parameters for the phosphides and for other rare-earth pnictides fall on a universal curve which is close to that predicted by an effective-point-charge model for the light rare earths but deviates markedly for the heavy rare earths.

R. J. Birgeneau; E. Bucher; J. P. Maita; L. Passell; K. C. Turberfield

1973-12-15T23:59:59.000Z

238

Rare earth elements activate endocytosis in plant cells Lihong Wanga,b,1  

E-Print Network (OSTI)

Rare earth elements activate endocytosis in plant cells Lihong Wanga,b,1 , Jigang Lic,d,1 , Qing (sent for review May 15, 2014) It has long been observed that rare earth elements (REEs) regulate, such as rare earth elements (REEs), have been observed for a long time to be beneficial to plant growth (1, 2

Deng, Xing-Wang

239

VISIBLE AND INFRARED RARE-EARTH ACTIVATED ELECTROLUMINESCENCE FROM ERBIUM DOPED GaN  

E-Print Network (OSTI)

. At the same time novel work is being conducted using rare earth elements as sources of light emission. Results. III-V semiconductors doped with rare-earth elements have also been used10VISIBLE AND INFRARED RARE-EARTH ACTIVATED ELECTROLUMINESCENCE FROM ERBIUM DOPED GaN M. Garter*, R

Steckl, Andrew J.

240

Rare earth elements in the sediments of Lake Baikal Lawrence M. Och a  

E-Print Network (OSTI)

Rare earth elements in the sediments of Lake Baikal Lawrence M. Och a , Beat Müller a, , Adrian Available online 3 April 2014 Editor: Carla M. Koretsky Keywords: Rare earth elements Cerium anomaly Lake to complex and cryptic redox cycles. The mobility of rare earth elements (REEs) is influenced

Wehrli, Bernhard

Note: This page contains sample records for the topic "deposits estimated rare" 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

Speciation of adsorbed yttrium and rare earth elements on oxide surfaces  

E-Print Network (OSTI)

Speciation of adsorbed yttrium and rare earth elements on oxide surfaces Wojciech Piasecki, Dimitri 10 June 2008 Abstract The distribution of yttrium and the rare earth elements (YREE) between natural investigate the applicability of the X-ray results to rare earth elements and to several oxides in addition

Sverjensky, Dimitri A.

242

Growth and characterization of rare-earth monosulfides for cold cathode applications  

E-Print Network (OSTI)

of chalco- genides of the rare-earth elements.4,5 The possibility was analyzed theoretically basedGrowth and characterization of rare-earth monosulfides for cold cathode applications Y. Modukuru, J phonons at 261 284 and 100 92 cm 1 with LaS NdS , respectively. These rare-earth monosulfides offer

Boolchand, Punit

243

Source and mobility of Rare Earth Elements in a sedimentary aquifer system: Aquitaine basin (Southern France)  

E-Print Network (OSTI)

Source and mobility of Rare Earth Elements in a sedimentary aquifer system: Aquitaine basin Geological Survey Service, Bordeaux, France, e.malcuit@brgm.fr The study of rare earth elements (REEs such as rivers and lakes and groundwaters. Rare earth elements) are of great interest because of their unique

Paris-Sud XI, Université de

244

Use of rare earth elements as external markers for mean retention time measurements in ruminants  

E-Print Network (OSTI)

Review Use of rare earth elements as external markers for mean retention time measurements -- The present review deals with the utilisation of rare earth (RE) elements as particulate markers for ruminant earth / retention time / feedstuff / methodology / ruminant Résumé -- Utilisation des terres rares comme

Paris-Sud XI, Université de

245

As China's Rare Earth R&D Becomes Ever More Rarefied, Others Tremble  

Science Journals Connector (OSTI)

...production and slap export tariffs on some rare...paper last month, China's Ministry of Industry...idea of prohibiting export of three scarcer rare earths...company in London. China has a “natural monopoly...complex hydrocarbons in petroleum refining. Military...which forced China to import processed rare earths...

Richard Stone

2009-09-11T23:59:59.000Z

246

Weekly Coal Production Estimation Methodology  

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

Weekly Coal Production Estimation Methodology Step 1 (Estimate total amount of weekly U.S. coal production) U.S. coal production for the current week is estimated using a ratio...

247

Depositional environment and reservoir morphology of Spraberry sandstones, Parks field, Midland County, Texas  

E-Print Network (OSTI)

of equivalent age on the shelf and shelf-margin are largely carbonates. Estimates of oil in place in the Spraberry sandstone range from 8 to 12 billion barrels. However, because of the low permeability and formation pressure associated with the formation..., only 5 percent of this oil has been produced to date. Stratigraphic and structural traps in Spraberry sandstones have been producing oil and gas since the late 1940's. Early field development was without regard to the depositional environment...

Yale, Mark William

2012-06-07T23:59:59.000Z

248

Depositional environment of the "stringer sand" member, Lower Tuscaloosa Formation (Cretaceous), Mallalieu field, Mississippi  

E-Print Network (OSTI)

day per well. The ultimate recoverable reserves are estimated to be 35, 000, 000 barrels (Mississippi Geological Society, 1957). As of December 31, 1966, the cumulative production for the field was 31, 600, 153 barrels of oil and 11, 047, 790, 000... from fine to medium grained. Some of the sandstones are carbonaceous and lignitic, and others contain limestone nodules and clay pellets. Rainwater (1962) suggests that the Dantzler is dominantly a continental deposit and changes southward...

Cook, Billy Charles

2012-06-07T23:59:59.000Z

249

REQUESTS FOR RETIREMENT ESTIMATE  

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

REQUEST FOR RETIREMENT ANNUITY ESTIMATE REQUEST FOR RETIREMENT ANNUITY ESTIMATE Instructions: Please read and answer the following questions thoroughly to include checking all applicable boxes. Unanswered questions may delay processing. Print and Fax back your request form to 202.586.6395 or drop request to GM-169. The request will be assigned to your servicing retirement specialist. They will confirm receipt of your request. SECTION A Request Submitted _____________________ ______________________ ________________________ _____________________ Name (last, first, middle) Last four SSN Date of Birth ___________________________ _________________________ __________________________ Organization Office Telephone Number Fax Number

250

Deposition of platinum catalyst by plasma sputtering for fuel cells: 3D simulation and experiments  

Science Journals Connector (OSTI)

Plasma sputtering is one of the most promising methods for reducing the amount of platinum catalyst in porous electrodes for low temperature fuel cells. Here, a simulation of the platinum deposition by radio frequency plasma sputtering has been developed and compared with experimental results to allow optimization of the deposition process. In the simulation, the transport of sputtered atoms through the argon plasma is obtained using a 3D Monte Carlo model called SPaTinG (Sputtered Particles Transport in Gas). The Yamamura formula provides the Pt sputtering yield on the target, and the initial energy distribution of sputtered atoms is given by the Thompson distribution. A 1D hybrid model is used to estimate the mean energy of argon ions impinging onto the platinum target. Experimentally, platinum is deposited on silicon in two plasma sputtering chambers with different geometries. The deposition rate is measured by Rutherford backscattering spectroscopy. The angular distribution of the Pt atoms ejected from the target surface and the condensation coefficient of the Pt atoms on silicon are calculated by adjusting the simulated and experimental deposition rates at 0.5?Pa. A good agreement between the simulation and the experiment is observed as a function of the target–substrate distance for the two system geometries at low pressure (0.5?Pa).

A Caillard; C Charles; R Boswell; A Meige; P Brault

2008-01-01T23:59:59.000Z

251

Sedimentary record of storm deposits from Hurricane Ike, Galveston and San Luis Islands, Texas  

Science Journals Connector (OSTI)

Prehistoric records of land-falling tropical cyclones further our understanding of the spatial and temporal variability of tropical cyclone activity and its relationship with global climatic changes. Here, we describe deposit stratigraphy and sedimentology resulting from overwash during Hurricane Ike, which made landfall on September 13th 2008, to provide a much needed modern analogue for paleo-hurricane deposits and evaluate the hurricane's influence on barrier stability. We compared the volume, grain size distribution, organic content and foraminiferal assemblages of washover deposits at three sites from Galveston and San Luis Islands, Texas that were up to 50 km west of Ike's landfall. Storm surge heights varied between 3.7 and 2.7 m with inland inundation extents of 330 to 113 m. At each of the study sites, Hurricane Ike eroded the shoreline and re-deposited a landward-thinning sand sheet between 0.02 and 0.28 m thick over short-grass prairie/salt-marsh soil. Shoreline erosion estimates suggest that only between 10 and 30% of eroded beach sediment is deposited on land as washover (net gain to barrier elevation), while the remainder is re-deposited subtidally or offshore, a potential net loss to the coastal sediment budget. The washover sediment was readily identifiable by abrupt changes in grain size, organic content, and buried in situ grasses. Foraminiferal assemblages within washover and short-grass prairie/salt-marsh sediments (when present) have similar assemblages, which are dominated by Ammonia spp. and Elphidium spp. These species are common to bay and nearshore environments of the Gulf of Mexico. Foraminiferal species Bolivina subaenariensis, Quinqueloculina seminulum and planktonic species are restricted to the washover deposits, which may suggest sediment provenance from inner shelf environments.

A.D. Hawkes; B.P. Horton

2012-01-01T23:59:59.000Z

252

Theory of Rayleigh waves on paramagnetic rare-earth systems  

Science Journals Connector (OSTI)

We present calculations of the velocity changes of Rayleigh waves in cubic, paramagnetic rare-earth systems due to magnetoelastic interactions. These interactions describe the coupling of the strain and rotational part of the deformation tensor to the incomplete 4f shell. They can be influenced by applying a magnetic field. An equation is obtained which generalizes that of Stoneley for cubic systems without magnetoelastic interactions. Special attention is paid to effects resulting from the rotational interactions. The theory is applied to CeAl2 for which experiments are available.

Robert Camley and Peter Fulde

1981-03-15T23:59:59.000Z

253

Search for New Physics in Rare Top Decays  

E-Print Network (OSTI)

Top physics provides a fertile ground for new-physics searches. At present, most top observables appear to be in good agreement with the respective Standard Model predictions. However, in the case of decay modes that are suppressed in the Standard Model, new-physics contributions of comparable magnitude may exist and yet go unnoticed because their impact on the total decay width is small. Hence it is interesting to probe rare top decays. This analysis focuses on the decay $t \\to b \\bar b c$. Useful observables are identified and prospects for measuring new-physics parameters are examined.

Pratishruti Saha

2014-11-27T23:59:59.000Z

254

Summary of the CKM 2014 working group on rare decays  

E-Print Network (OSTI)

Rare flavour changing neutral current decays of strange, charm and beauty hadrons have been instrumental in building up a picture of flavour in the Standard Model. Increasingly precise measurements of these decays allow to search for deviations from predictions of the Standard Model that would be associated to contributions from new particles that might arise in extensions of the Standard Model. In this summary, an overview of recent experimental results and theoretical predictions is given. The new physics sensitivity and prospects for the different observables is also addressed.

Blake, Thomas; Straub, David M

2015-01-01T23:59:59.000Z

255

Summary of the CKM 2014 working group on rare decays  

E-Print Network (OSTI)

Rare flavour changing neutral current decays of strange, charm and beauty hadrons have been instrumental in building up a picture of flavour in the Standard Model. Increasingly precise measurements of these decays allow to search for deviations from predictions of the Standard Model that would be associated to contributions from new particles that might arise in extensions of the Standard Model. In this summary, an overview of recent experimental results and theoretical predictions is given. The new physics sensitivity and prospects for the different observables is also addressed.

Thomas Blake; Akimasa Ishikawa; David M. Straub

2015-01-20T23:59:59.000Z

256

K Series X-Ray Wavelengths in Rare Earth Elements  

Science Journals Connector (OSTI)

The K-series x-rays in ten rare earth elements have been studied with a two-meter-radius bent-quartz-crystal spectrograph. The 3.7-Mev proton beam of the A-48 accelerator (UCRL, Livermore) was used to produce the atomic excitations. The wavelengths obtained for the K?1, K?2, K?3, and K?1 lines are compared with previous wavelength measurements. Two weaker transitions, K?5 and KOIIOIII, were also observed and the energies are compared with energies obtained from tables of known atomic energy levels.

E. L. Chupp, J. W. M. Du Mond, F. J. Gordon, R. C. Jopson, and Hans Mark

1958-11-15T23:59:59.000Z

257

Iron Isotope and Rare Earth Element Patterns of the Neoproterozoic Fulu Formation, South China: Implications for Late Proterozoic Ocean Chemistry  

E-Print Network (OSTI)

13 3.5. Rare Earth Element Analysis…………………………………………. ……15 4.21 b. 5.2. Rare Earth Element Patterns……………………………………………24 6.Piper, D. Z. (1974). Rare earth elements in the sedimentary

Goldbaum, Elizabeth

2014-01-01T23:59:59.000Z

258

Estimating SCR installation costs  

SciTech Connect

The EUCG surveyed 72 separate US installations of selective catalytic reduction (SCR) systems at coal-fired units totalling 41 GW of capacity to identify the systems' major cost drivers. The results, summarized in this article, provide excellent first-order estimates and guidance for utilities considering installing the downstream emissions-control technology. 4 figs., 1 tab.

Marano, M.; Sharp, G. [American Electric Power (United States)

2006-01-15T23:59:59.000Z

259

SPACE TECHNOLOGY Actual Estimate  

E-Print Network (OSTI)

SPACE TECHNOLOGY TECH-1 Actual Estimate Budget Authority (in $ millions) FY 2011 FY 2012 FY 2013 FY.7 247.0 Exploration Technology Development 144.6 189.9 202.0 215.5 215.7 214.5 216.5 Notional SPACE TECHNOLOGY OVERVIEW .............................. TECH- 2 SBIR AND STTR

260

Apparatus for laser assisted thin film deposition  

DOE Patents (OSTI)

A pulsed laser deposition apparatus uses fiber optics to deliver visible output beams. One or more optical fibers are coupled to one or more laser sources, and delivers visible output beams to a single chamber, to multiple targets in the chamber or to multiple chambers. The laser can run uninterrupted if one of the deposition chambers ceases to operate because other chambers can continue their laser deposition processes. The laser source can be positioned at a remote location relative to the deposition chamber. The use of fiber optics permits multi-plexing. A pulsed visible laser beam is directed at a generally non-perpendicular angle upon the target in the chamber, generating a plume of ions and energetic neutral species. A portion of the plume is deposited on a substrate as a thin film. A pulsed visible output beam with a high pulse repetition frequency is used. The high pulse repetition frequency is greater than 500 Hz, and more preferably, greater than about 1000 Hz. Diamond-like-carbon (DLC) is one of the thin films produced using the apparatus. 9 figs.

Warner, B.E.; McLean, W. II

1996-02-13T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Source-attribution for atmospheric mercury deposition: Where does the mercury in mercury deposition come from?  

E-Print Network (OSTI)

1 Source-attribution for atmospheric mercury deposition: Where does the mercury in mercury of the Mercury Working Group, Office of Air Quality, Indiana Department of Environmental Management (IDEM) April 21, 2005 #12;2 For mercury, how important is atmospheric deposition relative to other loading

262

Method for deposition of a conductor in integrated circuits  

DOE Patents (OSTI)

A method is described for fabricating integrated semiconductor circuits and, more particularly, for the selective deposition of a conductor onto a substrate employing a chemical vapor deposition process. By way of example, tungsten can be selectively deposited onto a silicon substrate. At the onset of loss of selectivity of deposition of tungsten onto the silicon substrate, the deposition process is interrupted and unwanted tungsten which has deposited on a mask layer with the silicon substrate can be removed employing a halogen etchant. Thereafter, a plurality of deposition/etch back cycles can be carried out to achieve a predetermined thickness of tungsten.

Creighton, J. Randall (Albuquerque, NM); Dominguez, Frank (Albuquerque, NM); Johnson, A. Wayne (Albuquerque, NM); Omstead, Thomas R. (Albuquerque, NM)

1997-01-01T23:59:59.000Z

263

ARM facility captures rare tornado data [EVS News]  

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

ARM facility captures rare tornado data ARM facility captures rare tornado data June 13, 2013 Every spring, tornadoes thunder across five states, from Kansas to Texas, and alerts are common. However, by Monday, May 20, it was clear that this time the alert had a different urgency to it. The turn of events leading up to the EF-5 tornado that wreaked havoc in Moore, Oklahoma, provided a unique opportunity for scientists to sample the environment preceding a severe weather event. Read more about how EVS scientist, Donna Holdridge, supported the ARM program in the full article. Raw data from the additional radiosonde launches preceding the severe weather events of May 20 in Oklahoma. The blue line identifies the temperature, which decreases with increasing altitude. The red line is the dew point, the temperature at which the air is 100% saturated with its water vapor content. Where the dew point approaches the actual temperature, the air is nearing 100% relative humidity near the ground-ideal conditions for tornado events.

264

Ab Initio Nuclear Structure and Reaction Calculations for Rare Isotopes  

SciTech Connect

We have developed a novel ab initio symmetry-adapted no-core shell model (SA-NCSM), which has opened the intermediate-mass region for ab initio investigations, thereby providing an opportunity for first-principle symmetry-guided applications to nuclear structure and reactions for nuclear isotopes from the lightest p-shell systems to intermediate-mass nuclei. This includes short-lived proton-rich nuclei on the path of X-ray burst nucleosynthesis and rare neutron-rich isotopes to be produced by the Facility for Rare Isotope Beams (FRIB). We have provided ab initio descriptions of high accuracy for low-lying (including collectivity-driven) states of isotopes of Li, He, Be, C, O, Ne, Mg, Al, and Si, and studied related strong- and weak-interaction driven reactions that are important, in astrophysics, for further understanding stellar evolution, X-ray bursts and triggering of s, p, and rp processes, and in applied physics, for electron and neutrino-nucleus scattering experiments as well as for fusion ignition at the National Ignition Facility (NIF).

Draayer, Jerry P [Louisiana State University

2014-09-28T23:59:59.000Z

265

Recent hybrid origin of three rare chinese turtles  

SciTech Connect

Three rare geoemydid turtles described from Chinese tradespecimens in the early 1990s, Ocadia glyphistoma, O. philippeni, andSacalia pseudocellata, are suspected to be hybrids because they are knownonly from their original descriptions and because they have morphologiesintermediate between other, better-known species. We cloned the allelesof a bi-parentally inherited nuclear intron from samples of these threespecies. The two aligned parental alleles of O. glyphistoma, O.philippeni, and S. pseudocellata have 5-11.5 times more heterozygouspositions than do 13 other geoemydid species. Phylogenetic analysis showsthat the two alleles from each turtle are strongly paraphyletic, butcorrectly match sequences of other species that were hypothesized frommorphology to be their parental species. We conclude that these rareturtles represent recent hybrids rather than valid species. Specifically,"O. glyphistoma" is a hybrid of Mauremys sinensis and M. cf. annamensis,"O. philippeni" is a hybrid of M. sinensis and Cuora trifasciata, and "S.pseudocellata" is a hybrid of C. trifasciata and S. quadriocellata.Conservation resources are better directed toward finding and protectingpopulations of other rare Southeast Asian turtles that do representdistinct evolutionary lineages.

Stuart, Bryan L.; Parham, James F.

2006-02-07T23:59:59.000Z

266

Diffusional methane fluxes within continental margin sediments and depositional constraints on formation factor estimates  

E-Print Network (OSTI)

subsurface life in deep-sea sediments. Science , 295 , 2067-consumption in anoxic marine sediments. Geology , 4 , 297-oxidation in methane-rich sediments overlying the Blake

Berg, Richard D.

2008-01-01T23:59:59.000Z

267

Role of gas phase reactions in subatmospheric chemical-vapor deposition ozone/TEOS processes for oxide deposition  

E-Print Network (OSTI)

-vapor deposition. Our results for oxide deposition show optimum process window around 200 Torr for producing films a po- tentially optimum process window in which film properties, deposition rates, film uniformity requires high quality dielectric films that can be deposited rapidly and conformally on high aspect ratio

Rubloff, Gary W.

268

Grant Helps Make U.S. Rare Earth Magnets More Common | Department of Energy  

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

Grant Helps Make U.S. Rare Earth Magnets More Common Grant Helps Make U.S. Rare Earth Magnets More Common Grant Helps Make U.S. Rare Earth Magnets More Common August 6, 2010 - 12:12pm Addthis With sintered rare earth magnets a $4 billion worldwide market, the U.S. could be a bigger producer of these magnets - which are not actually rare - and are used in hybrid vehicle motors and wind turbine generators. | Illustration Courtesy of of Electron Energy Corporation | With sintered rare earth magnets a $4 billion worldwide market, the U.S. could be a bigger producer of these magnets - which are not actually rare - and are used in hybrid vehicle motors and wind turbine generators. | Illustration Courtesy of of Electron Energy Corporation | Kevin Craft Electron Energy Corporation is one of a kind. According to Peter Dent, vice president of business development for the

269

Critical Materials and Rare Futures: Ames Laboratory Signs a New Agreement  

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

Critical Materials and Rare Futures: Ames Laboratory Signs a New Critical Materials and Rare Futures: Ames Laboratory Signs a New Agreement on Rare-Earth Research Critical Materials and Rare Futures: Ames Laboratory Signs a New Agreement on Rare-Earth Research June 15, 2011 - 7:07pm Addthis The plasma torch in the Retech plasma furnace is one tool used in Materials Preparation Center to create ultra-high purity metal alloy samples, particularly rare-earth metals, located at the Ames Lab. | Photo Courtesy of the Ames Lab Flickr The plasma torch in the Retech plasma furnace is one tool used in Materials Preparation Center to create ultra-high purity metal alloy samples, particularly rare-earth metals, located at the Ames Lab. | Photo Courtesy of the Ames Lab Flickr Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science

270

Grant Helps Make U.S. Rare Earth Magnets More Common | Department of Energy  

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

Grant Helps Make U.S. Rare Earth Magnets More Common Grant Helps Make U.S. Rare Earth Magnets More Common Grant Helps Make U.S. Rare Earth Magnets More Common August 6, 2010 - 12:12pm Addthis With sintered rare earth magnets a $4 billion worldwide market, the U.S. could be a bigger producer of these magnets - which are not actually rare - and are used in hybrid vehicle motors and wind turbine generators. | Illustration Courtesy of of Electron Energy Corporation | With sintered rare earth magnets a $4 billion worldwide market, the U.S. could be a bigger producer of these magnets - which are not actually rare - and are used in hybrid vehicle motors and wind turbine generators. | Illustration Courtesy of of Electron Energy Corporation | Kevin Craft Electron Energy Corporation is one of a kind. According to Peter Dent, vice president of business development for the

271

Ash & Pulverized Coal Deposition in Combustors & Gasifiers  

SciTech Connect

Further progress in achieving the objectives of the project was made in the period of January I to March 31, 1998. The direct numerical simulation of particle removal process in turbulent gas flows was completed. Variations of particle trajectories are studied. It is shown that the near wall vortices profoundly affect the particle removal process in turbulent boundary layer flows. Experimental data for transport and deposition of fibrous particles in the aerosol wind tunnel was obtained. The measured deposition velocity for irregular fibrous particles is compared with the empirical correlation and the available data for glass fibers and discussed. Additional progress on the sublayer model for evaluating the particle deposition and resuspension in turbulent flows was made.

Goodarz Ahmadi

1998-12-02T23:59:59.000Z

272

Ash & Pulverized Coal Deposition in Combustors & Gasifiers  

SciTech Connect

Further progress in achieving the objectives of the project was made in the period of October 1 to December 31, 1996. In particular, the sublayer model for evaluating the particle deposition in turbulent flows was extended to include the effect of particle rebound. A new more advance flow model for the near wall vortices is also used in these analysis. The computational model for simulating particle transport in turbulent flows was used to analyze the dispersion and deposition of particles in a recirculating flow region. The predictions of the particle resuspension model is compared with the experimental data. It is shown that when the effects of the near wall flow structure, as we as the surface roughness are included the model agrees with the available experimental data. Considerable progress was also made in the direct numerical simulation of particle removal process in turbulent gas flows. Experimental data for transport and deposition of glass fiber in the aerosol wind tunnel was also obtained.

Goodarz Ahmadi

1998-12-02T23:59:59.000Z

273

Glow discharge plasma deposition of thin films  

DOE Patents (OSTI)

A glow discharge plasma reactor for deposition of thin films from a reactive RF glow discharge is provided with a screen positioned between the walls of the chamber and the cathode to confine the glow discharge region to within the region defined by the screen and the cathode. A substrate for receiving deposition material from a reactive gas is positioned outside the screened region. The screen is electrically connected to the system ground to thereby serve as the anode of the system. The energy of the reactive gas species is reduced as they diffuse through the screen to the substrate. Reactive gas is conducted directly into the glow discharge region through a centrally positioned distribution head to reduce contamination effects otherwise caused by secondary reaction products and impurities deposited on the reactor walls.

Weakliem, Herbert A. (Pennington, NJ); Vossen, Jr., John L. (Bridgewater, NJ)

1984-05-29T23:59:59.000Z

274

Chemical vapor deposition of group IIIB metals  

DOE Patents (OSTI)

Coatings of Group IIIB metals and compounds thereof are formed by chemical vapor deposition, in which a heat decomposable organometallic compound of the formula given in the patent where M is a Group IIIB metal, such as lanthanum or yttrium and R is a lower alkyl or alkenyl radical containing from 2 to about 6 carbon atoms, with a heated substrate which is above the decomposition temperature of the organometallic compound. The pure metal is obtained when the compound of the formula 1 is the sole heat decomposable compound present and deposition is carried out under nonoxidizing conditions. Intermetallic compounds such as lanthanum telluride can be deposited from a lanthanum compound of formula 1 and a heat decomposable tellurium compound under nonoxidizing conditions.

Erbil, A.

1989-11-21T23:59:59.000Z

275

Use of Cost Estimating Relationships  

Directives, Delegations, and Requirements

Cost Estimating Relationships (CERs) are an important tool in an estimator's kit, and in many cases, they are the only tool. Thus, it is important to understand their limitations and characteristics. This chapter discusses considerations of which the estimator must be aware so the Cost Estimating Relationships can be properly used.

1997-03-28T23:59:59.000Z

276

Reinforcing flood–risk estimation  

Science Journals Connector (OSTI)

...publication of the Flood estimation handbook, studies of ood risk are now...especially for its neglect of the physics of catchment pro- cesses of...recommended in the Flood estimation handbook (Institute of Hydrology 1999...estimates. The Flood estimation handbook (Institute of Hydrology 1999...

2002-01-01T23:59:59.000Z

277

Atmospheric Pressure Deposition for Electrochromic Windows  

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

Atmospheric Pressure Deposition Atmospheric Pressure Deposition for Electrochromic Windows TDM - Karma Sawyer Robert C. Tenent National Renewable Energy Laboratory robert.tenent@nrel.gov 303-384-6775 4/4/2013 Insulating Glass Unit (IGU) Glass Transparent Conductor (TC) Active Electrode Counter Electrode Ion Conductor 2 | Building Technologies Office eere.energy.gov Purpose and Objectives * Expense - Current market price of $50-$100/ft 2 - Projections indicate under $20/ft 2 needed - A new production paradigm is required * Aesthetics - Architects hesitant to adopt "smurf glass"

278

Atmospheric Pressure Deposition for Electrochromic Windows  

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

Atmospheric Pressure Deposition Atmospheric Pressure Deposition for Electrochromic Windows TDM - Karma Sawyer Robert C. Tenent National Renewable Energy Laboratory robert.tenent@nrel.gov 303-384-6775 4/4/2013 Insulating Glass Unit (IGU) Glass Transparent Conductor (TC) Active Electrode Counter Electrode Ion Conductor 2 | Building Technologies Office eere.energy.gov Purpose and Objectives * Expense - Current market price of $50-$100/ft 2 - Projections indicate under $20/ft 2 needed - A new production paradigm is required * Aesthetics - Architects hesitant to adopt "smurf glass"

279

Treating paraffin deposits in producing oil wells  

SciTech Connect

Paraffin deposition has been a problem for operators in many areas since the beginning of petroleum production from wells. An extensive literature search on paraffin problems and methods of control has been carried out, and contact was made with companies which provide chemicals to aid in the treatment of paraffin problems. A discussion of the nature of paraffins and the mechanisms of this deposition is presented. The methods of prevention and treatment of paraffin problems are summarized. Suggested procedures for handling paraffin problems are provided. Suggestions for areas of further research testing are given.

Noll, L.

1992-01-01T23:59:59.000Z

280

Polymer-assisted deposition of films  

DOE Patents (OSTI)

A polymer assisted deposition process for deposition of metal nitride films and the like is presented. The process includes solutions of one or more metal precursor and soluble polymers having binding properties for the one or more metal precursor. After a coating operation, the resultant coating is heated at high temperatures under a suitable atmosphere to yield metal nitride films and the like. Such films can be conformal on a variety of substrates including non-planar substrates. In some instances, the films can be epitaxial in structure and can be of optical quality. The process can be organic solvent-free.

McCleskey,Thomas M. (Los Alamos, NM); Burrell,Anthony K. (Los Alamos, NM); Jia,Quanxi (Los Alamos, NM); Lin,Yuan (Chandler, AZ)

2012-02-28T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Nitrogen Deposition in the Southern High Plains  

E-Print Network (OSTI)

Nitrogen Deposition in the Southern High Plains Nitrogen is necessary for life on earth, but getting too much of it can be harmful. Recent research in delicate alpine watersheds of the western United States has suggested that the amount... Nitrogen Deposition in the Southern High Plains Conservation of mass: It?s not just a good idea, it?s the law Nitrogen, along with every other element in nature, obeys certain physical laws. The first of those laws, the law of conservation of mass...

Upadhyay, Jeetendra; Auvermann, Brent W.; Bush, K. Jack; Mukhtar, Saqib

2008-02-11T23:59:59.000Z

282

Los Alamos PC estimating system  

SciTech Connect

The Los Alamos Cost Estimating System (QUEST) is being converted to run on IBM personal computers. This very extensive estimating system is capable of supporting cost estimators from many different and varied fields. QUEST does not dictate any fixed method for estimating. QUEST supports many styles and levels of detail estimating. QUEST can be used with or without data bases. This system allows the estimator to provide reports based on levels of detail defined by combining work breakdown structures. QUEST provides a set of tools for doing any type of estimate without forcing the estimator to use any given method. The level of detail in the estimate can be mixed based on the amount of information known about different parts of the project. The system can support many different data bases simultaneously. Estimators can modify any cost in any data base.

Stutz, R.A.; Lemon, G.D.

1987-01-01T23:59:59.000Z

283

NPP Estimation for Grasslands  

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

NPP for Grasslands NPP for Grasslands Introduction The Oak Ridge DAAC Net Primary Production (NPP) Database includes field measurements from grassland study sites worldwide. The following brief review and discussion is intended to explain the complexity of NPP estimates derived from grassland measurements. There is no single answer to the question, "What is the productivity of the ecosystem at study site A?"; rather there may be range of estimates of NPP, depending upon what data were actually collected and how these data are processed. Although some of these methods for determining NPP for grasslands may be applicable to other vegetation types (e.g., semi-deserts, tundra, or some crops), methods for forests, in particular, are significantly different. Nevertheless, it should be possible to answer the question, "Is this modelled value of NPP reasonable for this ecosystem type at this location?"

284

Public to have rare opportunity to tour Neutron Science Center  

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

Rosenfest: celebrate Louis Rosen, tour LANSCE Rosenfest: celebrate Louis Rosen, tour LANSCE Public to have rare opportunity to tour Neutron Science Center Tour attendees can expect to see many facets of the LANSCE, including areas along the linear accelerator beam line, the control room area, and one or more experimental areas. May 10, 2011 Aerial View of Neutron Science Center Aerial View of Neutron Science Center Contact James Rickman Communicatons Office (505) 665-9203 Email LANL Rosenfest will celebrate life of LANSCE founder Louis Rosen and offer tour LOS ALAMOS, New Mexico, May 10, 2011-Members of the public will have an unusual opportunity to tour the Los Alamos Neutron Science Center from 1 to 5 p.m. on Friday, May 20, 2011, as part of Rosenfest, a celebration of LANSCE founder Louis Rosen and the remarkable facility he conceived. In

285

Microsoft Word - Rare Earth Update for RFI 110523final  

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

J. Thijssen, LLC P: 206 229 6882 J. Thijssen, LLC P: 206 229 6882 4910 163 rd Ave NE Redmond, WA 98052 e: jant@jthijssen.com Solid Oxide Fuel Cells and Critical Materials: A Review of Implications J. Thijssen, LLC Report Number: R102 06 04D1 Date: May 10, 2011 Prepared for: National Energy Technology Laboratory, In Sub-Contract to Leonardo Technologies, Inc. Contract Number: DE-FE0004002 (Subcontract: S013-JTH-PPM4002 MOD 00) 2 Summary The US DOE has identified a number of materials that are both used by clean energy technologies and are at risk of supply disruptions in the short term. Several of these materials, especially the rare earth elements (REEs) yttrium, cerium, and lanthanum were identified by DOE as critical (USDOE 2010) and are crucial to the function and performance of solid oxide

286

Microsoft Word - rare earth speech 3-18 6am  

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

REMARKS PREPARED FOR DELIVERY REMARKS PREPARED FOR DELIVERY TECHNOLOGY AND RARE EARTH METALS CONFERENCE 2010 KEYNOTE ADDRESS DAVID SANDALOW ASSISTANT SECRETARY FOR POLICY & INTERNATIONAL AFFAIRS U.S. DEPARTMENT OF ENERGY WASHINGTON, D.C. MARCH 17, 2010 [Acknowledgements.] 1. INTRODUCTION Thank you for the invitation to speak at this important conference. At energy conferences today, no topic is hotter than shale gas. The story is striking: recoverable reserves of shale gas have increased six-fold in the past few years, thanks to new drilling technologies. This increase has been transformational, with U.S. natural gas imports now predicted to drop steadily in the next decade and beyond, whereas just a few years ago imports were projected to climb for the foreseeable future. Large shale gas reserves are believed to exist

287

Shell model Monte Carlo investigation of rare earth nuclei  

Science Journals Connector (OSTI)

We utilize the shell model Monte Carlo method to study the structure of rare earth nuclei. This work demonstrates the first systematic full oscillator shell with intruder calculations in such heavy nuclei. Exact solutions of a pairing plus quadrupole Hamiltonian are compared with the static path approximation in several dysprosium isotopes from A=152 to 162, including the odd mass A=153. Some comparisons are also made with Hartree-Fock-Bogoliubov results from Baranger and Kumar. Basic properties of these nuclei at various temperatures and spin are explored. These include energy, deformation, moments of inertia, pairing channel strengths, band crossing, and evolution of shell model occupation numbers. Exact level densities are also calculated and, in the case of 162Dy, compared with experimental data.

J. A. White; S. E. Koonin; D. J. Dean

2000-02-14T23:59:59.000Z

288

Ab initio correlated calculations of rare-gas dimer quadrupoles  

SciTech Connect

This paper reports ab initio calculations of rare gas (RG=Kr, Ar, Ne, and He) dimer quadrupoles at the second order of Moeller-Plesset perturbation theory (MP2). The study reveals the crucial role of the dispersion contribution to the RG{sub 2} quadrupole in the neighborhood of the equilibrium dimer separation. The magnitude of the dispersion quadrupole is found to be much larger than that predicted by the approximate model of Hunt. As a result, the total MP2 quadrupole moment is significantly smaller than was assumed in virtually all previous related studies. An analytical model for the distance dependence of the RG{sub 2} quadrupole is proposed. The model is based on the effective-electron approach of Jansen, but replaces the original Gaussian approximation to the electron density in an RG atom by an exponential one. The role of the nonadditive contribution in RG{sub 3} quadrupoles is discussed.

Donchev, Alexander G. [Algodign, LLC, Bolshaya Sadovaya 8, Moscow 123001 (Russian Federation)

2007-10-15T23:59:59.000Z

289

New results in rare allowed muon and pion decays  

E-Print Network (OSTI)

Simple dynamics, few available decay channels, and highly controlled radiative and loop corrections, make pion and muon decays a sensitive means of exploring details of the underlying symmetries. We review the current status of the rare decays: pi+ -> e+ nu, pi+ -> e+ nu gamma, pi+ -> pi0 e+ nu, and mu+ -> e+ nu nu-bar gamma. For the latter we report new preliminary values for the branching ratio B(E_gamma >10 MeV, theta_(e-gamma) > 30deg) = 4.365 (9)_stat (42)_syst x 10^{-3}, and the decay parameter eta-bar = 0.006 (17)_stat (18)_syst, both in excellent agreement with standard model predictions. We review recent measurements, particularly by the PIBETA and PEN experiments, and near-term prospects for improvement. These and other similar precise low energy studies complement modern collider results materially.

D. Pocanic; E. Munyangabe; M. Bychkov; V. A. Baranov; W. Bertl; Yu. M. Bystritsky; E. Frlez; V. A. Kalinnikov; N. V. Khomutov; A. S. Korenchenko; S. M. Korenchenko; M. Korolija; T. Kozlowski; N. P. Kravchuk; N. A. Kuchinsky; M. C. Lehman; D. Mekterovic; D. Mzhavia; A. Palladino; P. Robmann; A. M. Rozhdestvensky; I. Supek; P. Truoel; Z. Tsamalaidze; A. van der Schaaf; B. Vandevender; E. P. Velicheva; V. P. Volnykh

2014-03-28T23:59:59.000Z

290

Advances in the electrospark deposition coating process  

Science Journals Connector (OSTI)

Electrospark deposition (ESD) is a pulsed?arc microwelding process using short?duration high?current electrical pulses to deposit an electrode material on a metallic substrate. It is one of the few methods available by which a fused metallurgically bonded coating can be applied with such a low total heat input that the bulk substrate material remains at or near ambient temperatures. The short duration of the electrical pulse allows an extremely rapid solidification of the deposited material and results in an exceptionally fine?grained homogeneous coating that approaches (and with some materials actually is) an amorphous structure. This structure is believed to contribute to the good tribological and corrosion performance observed for hardsurfacing materials used in the demanding environments of high temperatures liquid metals and neutron irradiation. A brief historical review of the process is provided followed by descriptions of the present state of the art and of the performance and applications of electrospark deposition coating in liquid–metal?cooled nuclear reactors.

Roger N. Johnson; G. L. Sheldon

1986-01-01T23:59:59.000Z

291

Electroless Nanoparticle Film Deposition Compatible with Photolithography,  

E-Print Network (OSTI)

Electroless Nanoparticle Film Deposition Compatible with Photolithography, Microcontact Printing; Revised Manuscript Received October 14, 2002 ABSTRACT Nanoparticles of Au, Pd, and Pt form spontaneously In this paper, we demonstrate that Au, Pd, and Pt nanoparticle films, produced through a spontaneous electroless

Porter Jr., Lon A.

292

CALCULATION OF ION ENERGY-DEPOSITION SPECTRA  

E-Print Network (OSTI)

CALCULATION OF ION ENERGY-DEPOSITION SPECTRA IN SILICON, LITHIUM-FLUORIDE, BORON, AND BORON CARBIDE by J.K. Shultis and D.S. McGregor Department of Mechanical and Nuclear Engineering Kansas State University Manhattan, Kansas 55606 published as Report 299 ENGINEERING EXPERIMENT STATION College

Shultis, J. Kenneth

293

Chemical vapor deposition of aluminum oxide  

DOE Patents (OSTI)

An aluminum oxide film is deposited on a heated substrate by CVD from one or more alkylaluminum alkoxide compounds having composition R.sub.n Al.sub.2 (OR').sub.6-n, wherein R and R' are alkyl groups and n is in the range of 1 to 5.

Gordon, Roy (Cambridge, MA); Kramer, Keith (Cleveland, OH); Liu, Xinye (Cambridge, MA)

2000-01-01T23:59:59.000Z

294

ADEPT. aerosol deposition in cylindrical pipes  

SciTech Connect

ADEPT calculates the deposition of aerosols in straight cylindrical pipes during turbulent air flow. Aerosol deposition is calculated in a time-dependent manner based on empirical correlations for turbulent flow in pipes. The calculated deposition during a single time interval is cumulative with that of previous time intervals and results in a decreasing inner diameter of the pipe. The calculated deposition is assumed uniform over the length of the pipe. The entering aerosol distribution is specified by the user in the form of a log-normal distribution of accumulated mass versus particle size and may be time dependent. Entering flow conditions are also specified by the user and may also be time dependent. For simplicity and generality, the geometry implicit in the program is that of a cylindrical pipe with no bends or fittings. The flow is turbulent and monodirectional; only one set of inlet conditions may be applied at a given time. The flow parameters are not calculated along the length of pipe; therefore, the dynamic behavior of the aerosol within the pipe as well as the effects of reentrainment cannot be determined explicitly. A typical problem requires 2 minutes of CPU time.

Fazekas, P.; Tewarson, S.C (Burns and Roe, Oradell, NJ (United States))

1985-01-01T23:59:59.000Z

295

ADEPT. Aerosol Deposition in Cylindrical Pipes  

SciTech Connect

ADEPT calculates the deposition of aerosols in straight cylindrical pipes during turbulent air flow. Aerosol deposition is calculated in a time-dependent manner based on empirical correlations for turbulent flow in pipes. The calculated deposition during a single time interval is cumulative with that of previous time intervals and results in a decreasing inner diameter of the pipe. The calculated deposition is assumed uniform over the length of the pipe. The entering aerosol distribution is specified by the user in the form of a log-normal distribution of accumulated mass versus particle size and may be time dependent. Entering flow conditions are also specified by the user and may also be time dependent. For simplicity and generality, the geometry implicit in the program is that of a cylindrical pipe with no bends or fittings. The flow is turbulent and monodirectional; only one set of inlet conditions may be applied at a given time. The flow parameters are not calculated along the length of pipe; therefore, the dynamic behavior of the aerosol within the pipe as well as the effects of reentrainment cannot be determined explicitly. A typical problem requires 2 minutes of CPU time.

Fazekas, P.; Tewarson, S.C [Burns and Roe, Oradell, NJ (United States)

1985-01-01T23:59:59.000Z

296

Resonant Inelastic X-ray Scattering of Rare-Earth and Copper Systems  

E-Print Network (OSTI)

100 nm Si 3 N 4 windows 100Å copper films were deposited inthick Si 3 N 4 window, the 100Å Fe film was deposited inis present in the film on the window membrane. Cu 2 O has

Kvashnina, Kristina

2007-01-01T23:59:59.000Z

297

Supercritical Fluid Immersion Deposition: A New Process for Selective Deposition of Metal Films on Silicon Substrates  

SciTech Connect

Supercritical CO2 is used as a new solvent for immersion deposition, a galvanic displacement process traditionally carried out in aqueous HF solutions containing metal ions, to selectively develop metal films on featured or non-featured silicon substrates. Components of supercritical fluid immersion deposition (SFID) solutions for fabricating Cu and Pd films on silicon substrates are described along with the corresponding experimental setup and procedure. Only silicon substrates exposed and reactive to SFID solutions can be coated. The highly pressurized and gas-like supercritical CO2, combined with the galvanic displacement property of immersion deposition, enables the SFID technique to selectively deposit metal films in small features. SFID may also provide a new method to fabricate palladium silicide in small features or to metallize porous silicon.

Ye, Xiangrong; Wai, Chien M.; Lin, Yuehe; Young, James S.; Engelhard, Mark H.

2005-01-01T23:59:59.000Z

298

Atmospheric deposition of organochlorine contaminants to Galveston Bay, Texas  

Science Journals Connector (OSTI)

Atmospheric monitoring of \\{PCBs\\} and chlorinated pesticides (e.g., HCHs, chlordanes, and DDTs) in Galveston Bay was conducted at Seabrook, Texas. Air and wet deposition samples were collected from 2 February 1995 and continued through 6 August 1996. Vapor total PCB (tPCB) concentrations in air ranged from 0.21 to 4.78 ng m?3 with a dominance of tri-chlorinated PCBs. Dissolved tPCBs in rain ranged from 0.08 to 3.34 ng l?1, with tetra-chlorinated \\{PCBs\\} predominating. The predominant isomers found in air and rain were ?- and ?-HCH, ?- and ?-chlordanes, 4,4?-DDT, and dieldrin. The concentrations of \\{PCBs\\} and pesticides in the air and rain revealed no clear seasonal trend. Elevated levels of \\{PCBs\\} in the air occurred when temperatures were high and wind came from urban and industrialized areas (S, SW, NW, and W of the site). Concentrations of \\{HCHs\\} were elevated in April, May, and October, perhaps due to local and/or regional applications of ?-HCH (lindane). Other pesticides showed no notable temporal variation. When winds originated from the Gulf of Mexico (southeasterly), lower concentrations of organochlorines were detected in the air. The direct deposition rate (wet+dry) of \\{PCBs\\} to Galveston Bay (6.40 ?g m?2 yr?1) was significantly higher than that of pesticides by a factor of 5–10. The net flux from gas exchange estimated for \\{PCBs\\} was from Galveston Bay water to the atmosphere (78 ?g m?2 yr?1). Gas exchange of \\{PCBs\\} from bay water to the atmosphere was the dominant flux.

June-Soo Park; Terry L Wade; Stephen Sweet

2001-01-01T23:59:59.000Z

299

Cobalt cluster-assembled thin films deposited by low energy cluster beam deposition: Structural and magnetic investigations of deposited layers  

SciTech Connect

Cobalt cluster-assembled thin films were deposited on amorphous-carbon-coated copper grids and on silicon substrates at room temperature by low energy cluster beam deposition. Characterizations using high-resolution transmission electronic microscopy and atomic force microscopy reveal randomly stacked agglomerates of 9-11 nm diameter, which are themselves composed of small 3.6 nm diameter fcc cobalt clusters. The films are ferromagnetic up to room temperature and above, which implies that the clusters are exchange coupled. The approach to saturation is analyzed within the random anisotropy model. The values of the exchange coefficient A and the anisotropy constant K then derived are discussed. The temperature dependence of the coercivity below 100 K is discussed in terms of thermal activation effects. All results indicate that the fundamental entity governing the magnetic behaviors is constituted by the 9-11 nm diameter agglomerates rather than by the clusters themselves.

Dumas-Bouchiat, F.; Nagaraja, H. S.; Rossignol, F.; Champeaux, C.; Trolliard, G.; Catherinot, A.; Givord, D. [Centre de Projet Films Minces et Microdispositifs pour Telecommunications, SPCTS, UMR CNRS 6638, 123 Avenue Albert Thomas, 87060 Limoges Cedex (France); SPCTS, UMR CNRS 6638, ENSCI, 47 Avenue Albert Thomas, 87065 Limoges Cedex (France); Centre de Projet Films Minces et Microdispositifs pour Telecommunications, SPCTS, UMR CNRS 6638, 123 Avenue Albert Thomas, 87060 Limoges Cedex (France); SPCTS, UMR CNRS 6638, 123 Avenue Albert Thomas, 87060 Limoges Cedex (France); Centre de Projet Films Minces et Microdispositifs pour Telecommunications, SPCTS, UMR CNRS 6638, 123 Avenue Albert Thomas, 87060 Limoges Cedex (France); Laboratoire Louis Neel, UPR CNRS 5051, BP 166, F-38042 Grenoble Cedex (France)

2006-09-15T23:59:59.000Z

300

Evaluation of the Gas Production Potential of Marine HydrateDeposits in the Ulleung Basin of the Korean East Sea  

SciTech Connect

Although significant hydrate deposits are known to exist in the Ulleung Basin of the Korean East Sea, their survey and evaluation as a possible energy resource has not yet been completed. However, it is possible to develop preliminary estimates of their production potential based on the limited data that are currently available. These include the elevation and thickness of the Hydrate-Bearing Layer (HBL), the water depth, and the water temperature at the sea floor. Based on this information, we developed estimates of the local geothermal gradient that bracket its true value. Reasonable estimates of the initial pressure distribution in the HBL can be obtained because it follows closely the hydrostatic. Other critical information needs include the hydrate saturation, and the intrinsic permeabilities of the system formations. These are treated as variables, and sensitivity analysis provides an estimate of their effect on production. Based on the geology of similar deposits, it is unlikely that Ulleung Basin accumulations belong to Class 1 (involving a HBL underlain by a mobile gas zone). If Class 4 (disperse, low saturation accumulations) deposits are involved, they are not likely to have production potential. The most likely scenarios include Class 2 (HBL underlain by a zone of mobile water) or Class 3 (involving only an HBL) accumulations. Assuming nearly impermeable confining boundaries, this numerical study indicates that large production rates (several MMSCFD) are attainable from both Class 2 and Class 3 deposits using conventional technology. The sensitivity analysis demonstrates the dependence of production on the well design, the production rate, the intrinsic permeability of the HBL, the initial pressure, temperature and hydrate saturation, as well as on the thickness of the water zone (Class 2). The study also demonstrates that the presence of confining boundaries is indispensable for the commercially viable production of gas from these deposits.

Moridis, George J.; Reagan, Matthew T.; Kim, Se-Joon; Seol,Yongkoo; Zhang, Keni

2007-11-16T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Rare-Earth Surface Alloying: A New Phase for GdAu2 M. J. Verstraete,1,2  

E-Print Network (OSTI)

refrigeration, are made pos- sible by an unusual group of elements: the rare earths (REs). The rare earthsRare-Earth Surface Alloying: A New Phase for GdAu2 M. Corso,1 M. J. Verstraete,1,2 F. Schiller,1 M. Gadolinium is a borderline rare earth, which is naturally ferromagnetic but can easily switch to different

302

Rare earth focused ion beam implantation utilizing Er and Pr liquid alloy ion sources  

E-Print Network (OSTI)

Pr,10,11 Eu,12 Dy,13 Er,13­15 and Tm16 doped GaN. Rare earth elements were added during growthRare earth focused ion beam implantation utilizing Er and Pr liquid alloy ion sources L. C. Chao, B write implantation. © 1999 American Vacuum Society. S0734-211X 99 08306-7 I. INTRODUCTION Rare earth

Steckl, Andrew J.

303

Parameter Estimation Through Ignorance  

E-Print Network (OSTI)

Dynamical modelling lies at the heart of our understanding of physical systems. Its role in science is deeper than mere operational forecasting, in that it allows us to evaluate the adequacy of the mathematical structure of our models. Despite the importance of model parameters, there is no general method of parameter estimation outside linear systems. A new relatively simple method of parameter estimation for nonlinear systems is presented, based on variations in the accuracy of probability forecasts. It is illustrated on the Logistic Map, the Henon Map and the 12-D Lorenz96 flow, and its ability to outperform linear least squares in these systems is explored at various noise levels and sampling rates. As expected, it is more effective when the forecast error distributions are non-Gaussian. The new method selects parameter values by minimizing a proper, local skill score for continuous probability forecasts as a function of the parameter values. This new approach is easier to implement in practice than alternative nonlinear methods based on the geometry of attractors or the ability of the model to shadow the observations. New direct measures of inadequacy in the model, the "Implied Ignorance" and the information deficit are introduced.

Hailiang Du; Leonard A. Smith

2012-06-06T23:59:59.000Z

304

Depositional framework and reservoir distribution of Red Fork sandstone in Oklahoma  

SciTech Connect

The Middle Pennsylvanian Red Fork sandstone formed as a result of southward progradation across most of Oklahoma. The Red Fork is one of several cyclothemic (transgressive-regressive) sequences developed within the Desmoinesian Cherokee Group. Sea level changes and stability of the depositional area were dominant factors in determining the general stratigraphic characteristics of the Red Fork interval. Progradation was episodic, with sand deposition in the distal, more subsident part of the basin during lower sea level stands, and valley-fill deposition in the more stable areas during sea level rises. Red Fork sandstone trends depict an alluvial-deltaic complex covering most of Oklahoma. The Red Fork consists primarily of alluvial-valley and plain (fluvial) bodies in the northern part of northeastern Oklahoma, alluvial-deltaic bodies in most of the remaining parts of the shelf area, and off-shelf submarine-fan and slope/basin-floor complexes within the deeper part of the Anadarko basin. Determination of reservoir trend and genesis requires integration of rock data and log data, with logs calibrated to cores for estimating depositional environments and assessing diagenetic overprints. Much of the oil and gas has been trapped in stratigraphic traps, some of which represent channelized sandstones with trends at high angles to the structural grain. Secondary chlorite, in particular, is associated locally with development of productive reservoirs showing microporosity, high water saturation, and correspondingly low resistivities.

Shelton, J.W.; Fritz, R.D.; Johnson, C. (Masera Corp., Tulsa, OK (USA))

1989-08-01T23:59:59.000Z

305

Selective mining of multiple-layer lignite deposits. A fuzzy approach  

Science Journals Connector (OSTI)

In this paper the development and the application of a fuzzy expert system for the evaluation of the exploitable reserves of multiple-layer lignite deposits, mined by continuous surface methods, is presented. The exploitable reserves are determined decisively by the structure of these deposits, as well as by the limitations of the used mining systems. In practice, thin layers of lignite and interbedded waste layers are grouped under specified assumptions regarding thickness and ash content, to form the exploitable blocks. Moreover, the decision for excavating such a block is made under subjective constraints of different importance, or by using uncertain data. Advances in fuzzy inference systems (FIS) have provided a new approach to the evaluation of multiple-layer lignite deposits. FIS have the ability to handle imprecise, incomplete or linguistically ambiguous information and incorporate them into decision-making processes. In the developed FIS (Mamdani type) new linguistic variables, related to working conditions, operators’ experience and production were involved. The FIS was used for the estimation of the exploitable reserves of the Southern Field lignite deposit, located in the area of Ptolemais (Greece).

Michael Galetakis; Anthoula Vasiliou

2010-01-01T23:59:59.000Z

306

The 5th Annual Colorado Rare Plant Symposium: G2 Plants of Colorado  

E-Print Network (OSTI)

1 The 5th Annual Colorado Rare Plant Symposium: G2 Plants of Colorado September 5, 2008 8 am - 4 pm they shouldn't collect because th

307

ORISE: Helping to Provide Rare Access to World-Class Computing...  

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

Supercomputing ORISE peer review services helping to advance, provide rare access to world-class computing resources The Oak Ridge Institute for Science Education (ORISE)...

308

Alternative High-Performance Motors with Non-Rare Earth Materials...  

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

Alternative High-Performance Motors with Non-Rare Earth Materials 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer...

309

Fabrication and evaluation of rare-earth-bearing fuel slugs for sodium-cooled fast reactors  

Science Journals Connector (OSTI)

Separation of rare-earth (RE) elements from minor actinides is difficult in pyroprocessing, especially for light REs (e.g....

Jong Hwan Kim; Hoon Song; Ki Hwan Kim…

2014-10-01T23:59:59.000Z

310

Aeolian depositional landforms of the south eastern Mojave Desert, California  

E-Print Network (OSTI)

Remote sensing and photo interpretation techniques are used to describe and map aeolian deposits found along two sediment transport corridors in the south eastern Mojave Desert. The first pathway and associated sand deposits extend eastward from...

Alvis, William Thomas

2000-01-01T23:59:59.000Z

311

Study of Paraffin Wax Deposition in Seasonally Pigged Pipelines  

Science Journals Connector (OSTI)

Waxy crude oil pipelines are pigged periodically to scrape the adhered wax deposit from the pipe wall and remove it from the pipeline. If wax deposition on the pipe wall is not ... severe and there is not much ch...

Wang Wenda; Huang Qiyu; Huang Jun; Pang Quan…

2014-03-01T23:59:59.000Z

312

All graphene electromechanical switch fabricated by chemical vapor deposition  

E-Print Network (OSTI)

We demonstrate an electromechanical switch comprising two polycrystalline graphene films; each deposited using ambient pressure chemical vapor deposition. The top film is pulled into electrical contact with the bottom film ...

Milaninia, Kaveh M.

313

Occurrence of Boron Phosphate in Fireside Deposit from an Economizer  

Science Journals Connector (OSTI)

... recently examined here. This deposit was one of several typical deposits from the fireside of economizers and boiler tubes of certain high-pressure boiler plants which were examined in 1942 and ... by the Central Electricity Board.

L. M. CLARK; J. HASLAM

1945-09-08T23:59:59.000Z

314

Surface acoustic wave dust deposition monitor  

DOE Patents (OSTI)

A system is disclosed for using the attenuation of surface acoustic waves to monitor real time dust deposition rates on surfaces. The system includes a signal generator, a tone-burst generator/amplifier connected to a transmitting transducer for converting electrical signals into acoustic waves. These waves are transmitted through a path defining means adjacent to a layer of dust and then, in turn, transmitted to a receiving transducer for changing the attenuated acoustic wave to electrical signals. The signals representing the attenuated acoustic waves may be amplified and used in a means for analyzing the output signals to produce an output indicative of the dust deposition rates and/or values of dust in the layer. 8 figs.

Fasching, G.E.; Smith, N.S. Jr.

1988-02-12T23:59:59.000Z

315

ON OIL SHALE MINING IN THE ESTONIA DEPOSIT  

E-Print Network (OSTI)

age) cut the Estonian oil shale-kukersite deposits. Two younger groups of structures are typical fault

K. Sokman; V. Kattai; R. Vaher; Y. J. Systra

316

Formation of amorphous metal alloys by chemical vapor deposition  

DOE Patents (OSTI)

Amorphous alloys are deposited by a process of thermal dissociation of mixtures of organometallic compounds and metalloid hydrides,e.g., transition metal carbonyl, such as nickel carbonyl and diborane. Various sizes and shapes of deposits can be achieved, including near-net-shape free standing articles, multilayer deposits, and the like. Manipulation or absence of a magnetic field affects the nature and the structure of the deposit. 1 fig.

Mullendore, A.W.

1988-03-18T23:59:59.000Z

317

Deposition of Contiguous Metal Adlayer on Transition Metal Nanostructu...  

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

and Abstract Primary Lab Date Application 20100099012 Application 20100099012 Electrocatalyst Synthesized by Depositing a Contiguous Metal Adlayer on Transition Metal...

318

Deposition of nanolayers by means of dense plasma focus  

Science Journals Connector (OSTI)

In our preliminary experiments, reported in this paper, dense plasma focus (DPF) device is used for deposition...

M. Chernyshova; I. Ivanova-Stanik; L. Karpi?ski…

2006-10-01T23:59:59.000Z

319

Electrostatic force assisted deposition of graphene  

DOE Patents (OSTI)

An embodiment of a method of depositing graphene includes bringing a stamp into contact with a substrate over a contact area. The stamp has at least a few layers of the graphene covering the contact area. An electric field is developed over the contact area. The stamp is removed from the vicinity of the substrate which leaves at least a layer of the graphene substantially covering the contact area.

Liang, Xiaogan (Berkeley, CA)

2011-11-15T23:59:59.000Z

320

Stationary phase deposition based on onium salts  

DOE Patents (OSTI)

Onium salt chemistry can be used to deposit very uniform thickness stationary phases on the wall of a gas chromatography column. In particular, the stationary phase can be bonded to non-silicon based columns, especially microfabricated metal columns. Non-silicon microfabricated columns may be manufactured and processed at a fraction of the cost of silicon-based columns. In addition, the method can be used to phase-coat conventional capillary columns or silicon-based microfabricated columns.

Wheeler, David R. (Albuquerque, NM); Lewis, Patrick R. (Albuquerque, NM); Dirk, Shawn M. (Albuquerque, NM); Trudell, Daniel E. (Albuquerque, NM)

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Chemical deposition methods using supercritical fluid solutions  

DOE Patents (OSTI)

A method for depositing a film of a desired material on a substrate comprises dissolving at least one reagent in a supercritical fluid comprising at least one solvent. Either the reagent is capable of reacting with or is a precursor of a compound capable of reacting with the solvent to form the desired product, or at least one additional reagent is included in the supercritical solution and is capable of reacting with or is a precursor of a compound capable of reacting with the first reagent or with a compound derived from the first reagent to form the desired material. The supercritical solution is expanded to produce a vapor or aerosol and a chemical reaction is induced in the vapor or aerosol so that a film of the desired material resulting from the chemical reaction is deposited on the substrate surface. In an alternate embodiment, the supercritical solution containing at least one reagent is expanded to produce a vapor or aerosol which is then mixed with a gas containing at least one additional reagent. A chemical reaction is induced in the resulting mixture so that a film of the desired material is deposited.

Sievers, Robert E. (Boulder, CO); Hansen, Brian N. (Boulder, CO)

1990-01-01T23:59:59.000Z

322

Ash & Pulverized Coal Deposition in Combustors & Gasifiers  

SciTech Connect

Further progress in achieving the objectives of the project was made in the period of October I to December 31, 1997. The direct numerical simulation of particle removal process in turbulent gas flows was continued. Variations of vorticity contours which are averaged over a short time duration are studied. It is shown that the near wall vortices profoundly affect the particle removal process in turbulent boundary layer flows. The sublayer model for evaluating the particle deposition in turbulent flows was extended to include the effect of particle rebound. A new more advance flow model for the near wall vortices is also used in these analysis. Sample particle trajectories are obtained and discussed. Experimental data for transport and deposition of fibrous particles in the aerosol wind tunnel was obtained. The measured deposition velocity is compared with the empirical correlation and the available data and discussed. Particle resuspension process in turbulent flows are studied. The model is compared with the experimental data. It is shown that when the effects of the near wall flow structure, as well as the surface roughness are included the model agrees with the available experimental data.

Goodarz Ahmadi

1998-12-02T23:59:59.000Z

323

Ash & Pulverized Coal Deposition in Combustors & Gasifiers  

SciTech Connect

Further progress in achieving the objectives of the project was made in the period of July 1 to September 30, 1997. The direct numerical simulation of particle removal process in turbulent gas flows was continued. Variations of vorticity contours which are averaged over a short time duration are studied. It is shown that the near wall vortices profoundly affect the particle removal process in turbulent boundary layer flows. The sublayer model for evaluating the particle deposition in turbulent flows was extended to include the effect of particle rebound. A new more advance flow model for the near wall vortices is also used in these analysis. Sample particle trajectories are obtained and discussed. Experimental data for transport and deposition of fibrous particles in the aerosol wind tunnel was obtained. The measured deposition velocity is compared with the empirical correlation and the available data and discussed. Particle resuspension process in turbulent flows are studied. The model is compared with the experimental data. It is shown that when the effects of the near wall flow structure, as well as the surface roughness are included the model agrees with the available experimental data.

Goodarz Ahmadi

1998-12-02T23:59:59.000Z

324

Vacuum-Deposited Planar Heterojunction Polymer Solar Cells  

Science Journals Connector (OSTI)

Vacuum-Deposited Planar Heterojunction Polymer Solar Cells ... Bilayer heterojunction solar cells were fabricated by sequential deposition of P3HT and C60 and the photovoltaic response measured. ... organic solar cells; conjugated polymers; poly(3-hexylthiophene); vacuum thermal deposition; thin films ...

Peter Kovacik; Giuseppe Sforazzini; Andrew G. Cook; Shawn M. Willis; Patrick S. Grant; Hazel E. Assender; Andrew A. R. Watt

2010-12-14T23:59:59.000Z

325

RISO-M-2438 Dry deposition and resuspension of  

E-Print Network (OSTI)

CO RISO-M-2438 2 S Dry deposition and resuspension of particulate matter in city environments N 1984 få #12;RIS�-M-2438 DRY DEPOSITION AND RESUSPENSION OF PARITUCLATE NATTER IN CITY ENVIRONMENTS N.O. Jensen Abstract. The report describes, mostly in qualitative terms, the deposition and resuspension

326

Model calculates was deposition for North Sea oils  

SciTech Connect

A model for calculation of wax formation and deposition in pipelines and process equipment has been developed along with a new method for wax-equilibrium calculations using input from TBP distillation cuts. Selected results from the wax formation and deposition model have been compared with laboratory data from wax equilibrium and deposition experiments, and there have been some field applications of the model.

Majeed, A.; Bringedal, B.; Overa, S. (Norsk Hydro, Stabekk (NO))

1990-06-18T23:59:59.000Z

327

Simple approaches for measuring dry atmospheric nitrogen deposition to watersheds  

E-Print Network (OSTI)

'' and spatial variations of gaseous dry N deposition (i.e., nitrogen dioxide (NO2) and ammonia (NH3)), thoughSimple approaches for measuring dry atmospheric nitrogen deposition to watersheds Heather E. Golden the effects of atmospheric nitrogen (N) deposition on surface water quality requires accurate accounts

Elliott, Emily M.

328

UNIVERSITY of CALIFORNIA ATOMIC LAYER DEPOSITION OF ALUMINUM OXIDE  

E-Print Network (OSTI)

UNIVERSITY of CALIFORNIA SANTA CRUZ ATOMIC LAYER DEPOSITION OF ALUMINUM OXIDE A thesis submitted deposition (ALD) of aluminum oxide on crystalline silicon and anodized aluminum substrates. A homemade ALD system is used with trimethylaluminum (TMA) and water as precursors to deposit uniform aluminum oxide

Belanger, David P.

329

Solvent extraction of rare-earth metals by carboxylic acids  

SciTech Connect

The solvent extraction of the trivalent lanthanides and yttrium from nitrate media by solutions of carboxylic acids in xylene has been studied. Commercially available carboxylic acids such as Versatic 10 and naphthenic acids were used, as well as model compounds of known structure, such as 2-ethylhexanoic and 3-cyclohexylpropanoic acids. In a few cases, extraction of the metals from sulphate and chloride solutions was also investigated. The dependence of the extraction properties of the carboxylic acids on the atomic number of the lanthanide shows a definite relationship to the steric bulk of the carboxylic acid molecule quantified by means of the steric parameter, E{sub s}{prime} of the substituent alkyl group. The stoichiometries of the extracted complexes for representative light (La), middle (Gd) and heavy (Lu) rare-earth metals were investigated by the slope-analysis technique for a sterically hindered acid (Versatic 10 acid; -E{prime}{sub s} = 3.83) and an acid with low steric hindrance (3-cyclohexylpropanoic acid; -E{prime}{sub s} = 0.28). 14 refs., 13 figs., 3 tabs.

Preez, A.C. du; Preston, J.S. [Mintek, Randburg (South Africa)

1992-04-01T23:59:59.000Z

330

Laser Spectroscopy of Short Lived Rare Earth Isotopes  

Science Journals Connector (OSTI)

The ISAC facility at TRIUMF is able to produce intense beams of mass?separated radioactive isotopes of the alkali and the rare earth elements with unprecedented intensities. This will allow our laser spectroscopy collaboration to extend the studies of exotic nuclei for these elements further away from the valley of stability into regions so far inaccessible at other facilities thus allowing a more stringent test of the descriptive and predictive power of global nuclear models. Our effort which involves groups and researchers from the U.S. (TAMU) Japan (JAERI) and Canada (TRIUMF McGill and Calgary Universities) is based on collinear laser spectroscopy in a fast beam. In this method atoms or ions are excited by laser light in collinear geometry. In this way measurements of the optical isotope shift yield the nuclear charge radii and measurements of the hyperfine structure the nuclear moments. The excitation can be done by cw?lasers or alternatively by pulsed lasers without a loss in sensitivity if bunched radioactive ion beams are available. In its basic version the resonances of the spectral lines are observed optically at right angles. However the sensitivity will be increased through modifications using particle or nuclear radiation detection. The progress and the plans of our collaboration will be described.

H. A. Schuessler; F. Buchinger; H. Iimura

2003-01-01T23:59:59.000Z

331

Evidence for the Rare Decay B+ to Ds+ pi0  

SciTech Connect

The authors have searched for the rare decay B{sup +} {yields} D{sub s}{sup +}{pi}{sup 0}. The analysis is based on a sample of 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring. They find 19.6 signal events, corresponding to a significance of 4.7 {sigma}. The extracted signal yield including statistical and systematic uncertainties is 20.1{sub -6.0-1.5}{sup +6.8+0.4}, and they measure {Beta}(B{sup +} {yields} D{sub s}{sup +}{pi}{sup 0}) = (1.5{sub -0.4}{sup +0.5} {+-} 0.1 {+-} 0.2) x 10{sup -5}, where the first uncertainty is statistical, the second is systematic, and the last is due to the uncertainty on the D{sub s}{sup +} decay and its daughter decay branching fractions.

Aubert, B.

2006-11-17T23:59:59.000Z

332

TiOx Films Deposited by Plasma Enhanced Chemical Vapour Deposition Method in Atmospheric Dielectric Barrier Discharge Plasma  

Science Journals Connector (OSTI)

The plasma enhanced chemical vapour deposition method applying atmospheric dielectric barrier discharge (ADBD) plasma was used for TiOx thin films deposition employing titanium (IV) isopropoxide and oxygen as rea...

Y. Klenko; J. Pichal

2012-12-01T23:59:59.000Z

333

High rate deposition of microcrystalline silicon films by high-pressure radio frequency plasma enhanced chemical vapor deposition (PECVD)  

Science Journals Connector (OSTI)

Hydrogenated microcrystalline silicon (?c-Si:H) thin films were prepared by high-pressure radio-frequency (13.56 MHz) plasma enhanced chemical vapor deposition (rf-PECVD) with a screened plasma. The deposition ra...

BingQing Zhou; MeiFang Zhu; FengZhen Liu…

2008-04-01T23:59:59.000Z

334

Effect of substrate temperature on the electrospark deposition, structure, and mechanical properties of coatings. II. Coating deposition features  

Science Journals Connector (OSTI)

The relationship between deposition temperature, coating inhomogeneity, and temperature of cathode spots is studied. It is shown that the spark deposition of coatings proceeds in the area of cathode spots; the...

V. D. Belik; R. V. Litvin; M. S. Kovalchenko

2012-05-01T23:59:59.000Z

335

Cost Estimating, Analysis, and Standardization  

Directives, Delegations, and Requirements

To establish policy and responsibilities for: (a) developing and reviewing project cost estimates; (b) preparing independent cost estimates and analysis; (c) standardizing cost estimating procedures; and (d) improving overall cost estimating and analytical techniques, cost data bases, cost and economic escalation models, and cost estimating systems. Cancels DOE O 5700.2B, dated 8-5-1983; DOE O 5700.8, dated 5-27-1981; and HQ 1130.1A, dated 12-30-1981. Canceled by DOE O 5700.2D, dated 6-12-1992

1984-11-02T23:59:59.000Z

336

Pore-scale analysis of permeability reduction resulting from colloid deposition  

SciTech Connect

High-energy, synchrotron-based x-ray difference micro-tomography (XDMT) was combined with lattice Boltzmann simulations to assess changes in pore-scale flow patterns and bulk permeability resulting from colloid deposition in a granular porous medium. The detailed structural information obtained from XDMT was used to define internal boundary conditions for simulations of pore fluid flow both with and without colloidal deposits. As colloids accumulated in the pore space, the mean tortuosity increased and the tortuosity distribution became multi-modal, indicating the development of macro-scale heterogeneity. These structural changes also produced large reductions in bulk permeability that were not captured by empirical or semi-empirical estimators based on the first-order geometric properties of the porous medium. This work demonstrates that coupling between fluid flow and particle transport produces heterogeneities at the sub-millimeter scale that greatly affect the hydrogeologic properties of natural porous media.

Chen, C.; Packman, A.I.; Gaillard, J.-F. (NWU)

2008-06-20T23:59:59.000Z

337

Depositional sequence analysis and sedimentologic modeling for improved prediction of Pennsylvanian reservoirs (Annex 1)  

SciTech Connect

Interdisciplinary studies of the Upper Pennsylvanian Lansing and Kansas City groups have been undertaken in order to improve the geologic characterization of petroleum reservoirs and to develop a quantitative understanding of the processes responsible for formation of associated depositional sequences. To this end, concepts and methods of sequence stratigraphy are being used to define and interpret the three-dimensional depositional framework of the Kansas City Group. The investigation includes characterization of reservoir rocks in oil fields in western Kansas, description of analog equivalents in near-surface and surface sites in southeastern Kansas, and construction of regional structural and stratigraphic framework to link the site specific studies. Geologic inverse and simulation models are being developed to integrate quantitative estimates of controls on sedimentation to produce reconstructions of reservoir-bearing strata in an attempt to enhance our ability to predict reservoir characteristics.

Watney, W.L.

1992-01-01T23:59:59.000Z

338

Petrological evolution of the Paleogene coal deposits of Jammu, Jammu and Kashmir, India  

Science Journals Connector (OSTI)

A detailed macro- and micro-petrological investigation of 8 coal seam profiles of Eocene age from the sub-Himalayan zone of Jammu was undertaken in order to characterize them petrographically and to focus on their evolution. The quantitative data suggest that these coals are vitrinite rich, with low concentrations of inertinite and rare occurrences of liptinite. According to microlithotype concentration these coals may be characterized as vitrinite rich, with minor amounts of clarite, vitrinertite and trimacerite. The dominant minerals are clays, siderite and pyrite (occurring mostly as disseminations, cavity filling and in framboidal state). These coals are vitric in type, low volatile bituminous in rank and ashy in grade. The petrographic character and the presence of teleutospores suggest that, similar to other Tertiary coal deposits in the world, the angiosperm flora contributed chiefly to the development of coal facies in the area. The maceral and microlithotype composition shows that these coals originated from the low forest and undisturbed (in situ) peat in foreland basins under limno-telmatic depositional conditions. The water was brackish with regular influxes of fresh water.

Mahendra P. Singh; G.P. Singh

1995-01-01T23:59:59.000Z

339

Acid Deposition: Unraveling a Regional Phenomenon  

Science Journals Connector (OSTI)

...since a substantial fraction of the material is...Estimates of the fraction of North American emissions...smoke from forest fires, and radionuclides from the fire at the Chemobyl nuclear...involving the intentional release of known quantities...

Stephen E. Schwartz

1989-02-10T23:59:59.000Z

340

A new pulsed laser deposition technique: Scanning multi-component pulsed laser deposition method  

SciTech Connect

The scanning multi-component pulsed laser deposition (PLD) method realizes uniform depositions of desired coatings by a modified pulsed laser deposition process, preferably with a femto-second laser-system. Multi-component coatings (single or multilayered) are thus deposited onto substrates via laser induced ablation of segmented targets. This is achieved via horizontal line-scanning of a focused laser beam over a uniformly moving target's surface. This process allows to deposit the desired composition of the coating simultaneously, starting from the different segments of the target and adjusting the scan line as a function of target geometry. The sequence and thickness of multilayers can easily be adjusted by target architecture and motion, enabling inter/intra layer concentration gradients and thus functional gradient coatings. This new, simple PLD method enables the achievement of uniform, large-area coatings. Case studies were performed with segmented targets containing aluminum, titanium, and niobium. Under the laser irradiation conditions applied, all three metals were uniformly ablated. The elemental composition within the rough coatings obtained was fixed by the scanned area to Ti-Al-Nb = 1:1:1. Crystalline aluminum, titanium, and niobium were found to coexist side by side at room temperature within the substrate, without alloy formation up to 600 deg. C.

Fischer, D.; Jansen, M. [Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart (Germany); Fuente, G. F. de la [Instituto de Ciencia de Materiales de Aragon (CSIC-Universidad de Zaragoza), Maria de Luna, 3, 50018 Zaragoza (Spain)

2012-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Deposition of biaxially textured yttria-stabilized zirconia by ion-beam-assisted deposition.  

SciTech Connect

Biaxially textured yttria (8 mol %)-stabilized zirconia (YSZ) thin films were deposited on randomly oriented Hastelloy C and Stainless Steel 304 at room temperature as a buffer layer for subsequent deposition of oriented YBa{sub 2}Cu{sub 3}O{sub x} films. The 0.16-1.3 {micro}m thick YSZ films were deposited by e-beam evaporation at rates of 1.2-3.2 {angstrom}/sec. Biaxially textured films were produced with an Ar/O{sub 2} ion beam directed at the substrate during film growth. X-ray diffraction was used to study in-plane and out-of-plane orientation as a function of ion-bombardment angle, film thickness, ion-to-atom flux ratio, and substrate material. In-plane and out-of-plane average-misorientation angles on these YSZ films that were deposited by ion-beam-assisted deposition were as low as 17 and 5.4{degree}, respectively, on as-received substrates.

Chudzik, M. P.

1998-09-17T23:59:59.000Z

342

The impact of vegetation on fractionation of rare earth elements (REE) during waterrock interaction  

E-Print Network (OSTI)

The impact of vegetation on fractionation of rare earth elements (REE) during water The fractionation of the rare earth elements (REE) in river water, as well as the immobilization of REE in the river earth elements (REE) principally originate from apatite dissolution during weathering. However, stream

Mailhes, Corinne

343

High-temperature desulfurization of gasifier effluents with rare earth and rare earth/transition metal oxides  

SciTech Connect

We have improved the application of mixed rare-earth oxides (REOs) as hot gas desulfurization adsorbents by impregnating them on stable high surface area supports and by the inclusion of certain transition metal oxides. We report comparative desulfurization experiments at high temperature (900 K) using a synthetic biomass gasifier effluent containing 0.1 vol % H{sub 2}S, along with H{sub 2}, CO{sub 2}, and water. More complex REO sorbents outperform the simpler CeO{sub 2}/La{sub 2}O{sub 3} mixtures, in some cases significantly. Supporting REOs on Al{sub 2}O{sub 3} (?20 wt % REO) or ZrO{sub 2} actually increased the sulfur capacities found after several cycles on a total weight basis. Another major increase in sulfur capacity took place when MnO{sub x} or FeO{sub x} is incorporated. Apparently most of the Mn or Fe is dispersed on or near the surface of the mixed REOs because the capacities with REOs greatly exceeded those of Al{sub 2}O{sub 3}-supported MnO{sub x} or FeO{sub x} alone at these conditions. In contrast, incorporating Cu has little effect on sulfur adsorption capacities. Both the REO and transition metal/REO adsorbents could be regenerated completely using air for at least five repetitive cycles.

Dooley, Kerry M.; Kalakota, Vikram; Adusumilli, Sumana

2011-01-01T23:59:59.000Z

344

Deposition and current conduction of mixed hexagonal and cubic phases of AlN/p-Si films prepared by vacuum arc discharge: Effect of deposition temperature  

Science Journals Connector (OSTI)

Abstract Cubic and hexagonal AlN films have been prepared by vacuum arc discharge technique at different deposition temperatures 100, 200 and 300 °C. The depositions were carried out from pure aluminum targets under nitrogen gas on p-type Si substrates, with Al forming the gate in a metal–insulator–semiconductor configuration. Preferential orientations (111) and (002) of the cubic and hexagonal phases have been affirmed by X-ray diffraction analysis. The Fourier transform infrared spectra revealed the manifestation of the two phases as well. The effect of deposition temperature on the crystalline quality and texture of the films has been also investigated and the grain size of which, has been evaluated as a function of temperature. The best crystalline quality i.e., largest grain size was found to be at 200 °C. The composition and stoichiometry of the films have been determined by the time-of-flight elastic recoil detection analysis (TOF-ERDA) and Rutherford backscattering techniques. The Al/N ratio was found to be around 1, while the O content was less than 1.8%. Scanning electron microscopy and TOF-ERDA measurements demonstrated films thickness of 260 nm. Current density versus electric field and capacitance–voltage (C–V) measurements were also investigated to reveal the field emission and conduction mechanism of the Al/AlN/p-Si devices. Schottky, Pool–Frenkel and Fowler–Nordheim conduction have been found to contribute to the electron transport, and the best emission properties were manifested at 200 °C with a highest current density 525 ?A/cm2 at a field 71 V/?m. From C–V curves, the density of traps has been estimated to be 18 × 109 cm? 2 eV? 1 indicating a good quality of the deposited films.

B. Abdallah; S. Al-Khawaja; A. Alkhawwam; I.M. Ismail

2014-01-01T23:59:59.000Z

345

Direct ion flux measurements at high-pressure-depletion conditions for microcrystalline silicon deposition  

SciTech Connect

The contribution of ions to the growth of microcrystalline silicon thin films has been investigated in the well-known high-pressure-depletion (HPD) regime by coupling thin-film analysis with plasma studies. The ion flux, measured by means of a capacitive probe, has been studied in two regimes, i.e., the amorphous-to-microcrystalline transition regime and a low-to-high power regime; the latter regime had been investigated to evaluate the impact of the plasma power on the ion flux in collisional plasmas. The ion flux was found not to change considerably under the conditions where the deposited material undergoes a transition from the amorphous to the microcrystalline silicon phase; for solar-grade material, an ion-to-Si deposition flux of ?0.30 has been determined. As an upper-estimation of the ion energy, a mean ion energy of ?19 eV has been measured under low-pressure conditions (<1 mbar) by means of a retarding field energy analyzer. Combining this upper-estimate with an ion per deposited Si atom ratio of ?0.30, it is concluded that less than 6 eV is available per deposited Si atom. The addition of a small amount of SiH{sub 4} to an H{sub 2} plasma resulted in an increase of the ion flux by about 30% for higher power values, whereas the electron density, deduced from optical emission spectroscopy analysis, decreased. The electron temperature, also deduced from optical emission spectroscopy analysis, reveals a slight decrease with power. Although the dominant ion in the HPD regime is SiH{sub 3}{sup +}, i.e., a change from H{sub 3}{sup +} in pure hydrogen HPD conditions, the measured larger ion loss can be explained by assuming steeper electron density profiles. These results, therefore, confirm the results reported so far: the ion-to-Si deposition flux is relatively large but has neither influence on the microcrystalline silicon film properties nor on the phase transition. Possible explanations are the reported high atomic hydrogen to deposition flux ratio, mitigating the detrimental effects of an excessive ion flux.

Bronneberg, A. C.; Kang, X.; Palmans, J.; Janssen, P. H. J.; Lorne, T. [Applied Physics Department, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven (Netherlands)] [Applied Physics Department, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven (Netherlands); Creatore, M. [Applied Physics Department, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven (Netherlands) [Applied Physics Department, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven (Netherlands); Solliance Solar Research, High Tech Campus 5, 5656AE Eindhoven (Netherlands); Sanden, M. C. M. van de [Applied Physics Department, Eindhoven University of Technology, P.O. Box 513, 5600MB Eindhoven (Netherlands); Dutch Institute for Fundamental Energy Research (DIFFER), P.O. Box 1207, 3430BE Nieuwegein (Netherlands)

2013-08-14T23:59:59.000Z

346

Watch a Rare Earth Elements Event Live This Morning | Department of Energy  

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

Watch a Rare Earth Elements Event Live This Morning Watch a Rare Earth Elements Event Live This Morning Watch a Rare Earth Elements Event Live This Morning December 15, 2010 - 9:20am Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs From 9:30am to noon ET today you can tune into a live discussion on "rare earth materials" that are critical to the production of clean energy technologies. Tune in here. The Department of Energy's Assistant Secretary for Policy and International Affairs David Sandalow will give the keynote, speaking to the role of rare earth metals and other materials in the clean energy economy. You can check back to the Energy Blog for more info later today. Ginny Simmons is a New Media Specialist and contractor to the Office of Public Affairs.

347

DOE Announces Second RFI on Rare Earth Metals | Department of Energy  

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

Second RFI on Rare Earth Metals Second RFI on Rare Earth Metals DOE Announces Second RFI on Rare Earth Metals March 22, 2011 - 12:00am Addthis Washington, D.C. - The Department of Energy today released a Request for Information (RFI) soliciting information from the public on rare earth metals and other materials used in the energy sector. Responses to this RFI will inform an update to DOE's Critical Materials Strategy (pdf - 5.7mb ), released December 15, 2010, that assessed the use of rare earth metals and other materials important to the development and deployment of a variety of clean energy technologies, such as wind turbines, hybrid vehicles, solar panels and energy efficient light bulbs. The updated strategy, expected later this year, will include additional analysis of rapidly-changing market conditions. It will analyze the use

348

Watch a Rare Earth Elements Event Live This Morning | Department of Energy  

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

Watch a Rare Earth Elements Event Live This Morning Watch a Rare Earth Elements Event Live This Morning Watch a Rare Earth Elements Event Live This Morning December 15, 2010 - 9:20am Addthis Ginny Simmons Ginny Simmons Former Managing Editor for Energy.gov, Office of Public Affairs From 9:30am to noon ET today you can tune into a live discussion on "rare earth materials" that are critical to the production of clean energy technologies. Tune in here. The Department of Energy's Assistant Secretary for Policy and International Affairs David Sandalow will give the keynote, speaking to the role of rare earth metals and other materials in the clean energy economy. You can check back to the Energy Blog for more info later today. Ginny Simmons is a New Media Specialist and contractor to the Office of Public Affairs.

349

Atmospheric deposition, resuspension and root uptake of plutonium in corn and other grain-producing agroecosystems near a nuclear fuel facility  

SciTech Connect

Plutonium released to the environment may contribute to dose to humans through inhalation or ingestion of contaminated foodstuffs. Plutonium contamination of agricultural plants may result from interception and retention of atmospheric deposition, resuspension of Pu-bearing soil particles to plant surfaces, and root uptake and translocation to grain. Plutonium on vegetation surfaces may be transferred to grain surfaces during mechanical harvesting. Data obtained from corn grown near the US Department of Energy`s H-Area nuclear fuel chemical separations facility on the Savannah River Site was used to estimated parameters of a simple model of Pu transport in agroecosystems. The parameter estimates for corn were compared to those previously obtained for wheat and soybeans. Despite some differences in parameter estimates among crops, the relative importances of atmospheric deposition, resuspension and root uptake were similar among crops. For even small deposition rates, the relative importances of processes for Pu contamination of corn grain should be: transfer of atmospheric deposition from vegetation surfaces to grain surfaces during combining > resuspension of soil to grain surfaces > root uptake. Approximately 3.9 {times} 10{sup {minus}5} of a year`s atmospheric deposition is transferred to grain. Approximately 6.2 {times} 10{sup {minus}9} of the Pu inventory in the soil is resuspended to corn grain, and a further 7.3 {times} 10{sup {minus}10} of the soil inventory is absorbed by roots and translocated to grains.

Pinder, J.E. III; McLeod, K.W.; Adriano, D.C. [Savannah River Ecology Lab., Aiken, SC (United States); Corey, J.C.; Boni, A.L. [Savannah River Lab., Aiken, SC (United States)

1989-12-31T23:59:59.000Z

350

Atmospheric deposition, resuspension, and root uptake of Pu in corn and other grain-producing agroecosystems near a nuclear fuel facility  

SciTech Connect

Plutonium released to the environment may contribute to dose to humans through inhalation or ingestion of contaminated foodstuffs. Plutonium contamination of agricultural plants may result from interception and retention of atmospheric deposition, resuspension of Pu-bearing soil particles to plant surfaces, and root uptake. Plutonium on vegetation surfaces may be transferred to grain surfaces during mechanical harvesting. Data obtained from corn grown near the U.S. Department of Energy's H-Area nuclear fuel chemical separations facility on the Savannah River Site were used to estimate parameters of a simple model of Pu transport in agroecosystems. The parameter estimates for corn were compared to those previously obtained for wheat and soybeans. Despite some differences in parameter estimates among crops, the relative importances of atmospheric deposition, resuspension, and root uptake were similar among crops. For even small deposition rates, the relative importances of processes for Pu contamination of corn grain should be: transfer of atmospheric deposition from vegetation surfaces to grain surfaces during combining greater than resuspension of soil to grain surfaces greater than root uptake. Approximately 3.9 X 10(-5) of a year's atmospheric deposition is transferred to grain. Approximately 6.2 X 10(-9) of the Pu inventory in the soil is resuspended to corn grain, and a further 7.3 X 10(-10) of the soil Pu inventory is absorbed and translocated to grains.

Pinder, J.E. III; McLeod, K.W.; Adriano, D.C.; Corey, J.C.; Boni, A.L. (Savannah River Ecology Laboratory, Aiken, SC (USA))

1990-12-01T23:59:59.000Z

351

Atmospheric deposition, resuspension and root uptake of plutonium in corn and other grain-producing agroecosystems near a nuclear fuel facility  

SciTech Connect

Plutonium released to the environment may contribute to dose to humans through inhalation or ingestion of contaminated foodstuffs. Plutonium contamination of agricultural plants may result from interception and retention of atmospheric deposition, resuspension of Pu-bearing soil particles to plant surfaces, and root uptake and translocation to grain. Plutonium on vegetation surfaces may be transferred to grain surfaces during mechanical harvesting. Data obtained from corn grown near the US Department of Energy's H-Area nuclear fuel chemical separations facility on the Savannah River Site was used to estimated parameters of a simple model of Pu transport in agroecosystems. The parameter estimates for corn were compared to those previously obtained for wheat and soybeans. Despite some differences in parameter estimates among crops, the relative importances of atmospheric deposition, resuspension and root uptake were similar among crops. For even small deposition rates, the relative importances of processes for Pu contamination of corn grain should be: transfer of atmospheric deposition from vegetation surfaces to grain surfaces during combining > resuspension of soil to grain surfaces > root uptake. Approximately 3.9 {times} 10{sup {minus}5} of a year's atmospheric deposition is transferred to grain. Approximately 6.2 {times} 10{sup {minus}9} of the Pu inventory in the soil is resuspended to corn grain, and a further 7.3 {times} 10{sup {minus}10} of the soil inventory is absorbed by roots and translocated to grains.

Pinder, J.E. III; McLeod, K.W.; Adriano, D.C. (Savannah River Ecology Lab., Aiken, SC (United States)); Corey, J.C.; Boni, A.L. (Savannah River Lab., Aiken, SC (United States))

1989-01-01T23:59:59.000Z

352

Molecular Layer Deposition on Carbon Nanotubes  

Science Journals Connector (OSTI)

They were fabricated by compressing a CNT aerogel produced as an output from a chemical vapor deposition furnace. ... The CNT3 specimens may be harder in general to coat due to their smaller diameter in comparison to the other materials. ... (1) Data tables for mechanical test results parallel and perpendicular to the CNT sheet orientation; (2) additional SEM and TEM images of coated CNT materials; (3) additional EDS spectra of MLD coatings on CNTs, and comparison to Al2O3 ALD coating on CNTs. ...

Joseph J. Brown; Robert A. Hall; Paul E. Kladitis; Steven M. George; Victor M. Bright

2013-08-13T23:59:59.000Z

353

The Role of Free-ranging Mammals in the Deposition of Escherichia coli into a Texas Floodplain  

E-Print Network (OSTI)

with data derived from my meta-analysis (i.e., fecal deposition rates). I was able to estimate the relative role of individual species (e.g., raccoons [Procyon lotor], white-tailed deer [Odocoileus virginianus], and feral hogs [Sus scrofa]). Finally, I... 3 Common Name Species Name White-tailed deer Odocoileus virginianus Virginia opossum Didelphis virginiana Striped skunk Mephitis mephitis Nine-banded armadillo Dasypus novemcinctus Raccoon...

Parker, Israel David

2011-10-21T23:59:59.000Z

354

Comparative studies of optical and elastic properties of ZrO{sub 2} thin films prepared under normal and oblique incidence deposition geometries  

SciTech Connect

Oblique angle deposited optical thin films have attracted recent researcher’s interest because of their attractive optical, micro-structural, mechanical properties and more importantly because of their great potential in achieving tunability in refractive index. These properties in turn make it important in case of designing different optical devices. In the present work, ZrO{sub 2} thin films have been deposited on fused silica substrate by electron beam evaporation technique in normal as well as oblique angle deposition configurations. Optical properties, especially refractive index of the films have been estimated by fitting the measured transmission spectra with suitable theoretical dispersion models. Atomic force microscopy has been employed to characterize morphological properties of samples. The elastic properties of both the films are estimated by Atomic Force Acoustic Microscopy, a new and highly sensitive technique for thin films.

Sarkar, P., E-mail: piyali.sarkar4@gmail.com; Tokas, R. B., E-mail: piyali.sarkar4@gmail.com; Jena, S., E-mail: piyali.sarkar4@gmail.com; Thakur, S., E-mail: piyali.sarkar4@gmail.com; Sahoo, N. K., E-mail: piyali.sarkar4@gmail.com [Atomic and Molecular Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085 (India)

2014-04-24T23:59:59.000Z

355

Anisotropic magnetic properties of light rare-earth diantimonides  

SciTech Connect

Results are presented of anisotropic temperature and field-dependent magnetization M(H,T) and resistivity {rho}(H,T) measurements on high quality single crystals of the light rare-earth diantimonides RSb{sub 2}, R=La-Nd, Sm. All of these, excepting LaSb{sub 2}, magnetically order at low temperatures, and for CeSb{sub 2} and NdSb{sub 2} several magnetically ordered phases were observed in low-field magnetization and zero-field resistivity measurements. For R=Ce-Sm strong anisotropies, associated with crystalline electric field (CEF) splitting of the R{sup 3+} ion, were found in M(T) measurements both below and above magnetic ordering temperatures. Furthermore, for R=Ce-Nd metamagnetic transitions were observed in M(H) and {rho}(H) for H{parallel}(ab) in the magnetically ordered state. In addition, above 15 kG de Haas{endash}van Alphen oscillations are observed for SmSb{sub 2} and Shubnikov{endash}de Haas quantum oscillations are observed above {approximately}120kG for NdSb{sub 2} and SmSb{sub 2}. The zero-field in-plane resistivity {rho}{sub ab} of all of the compounds is metallic (d{rho}/dT{gt}0), with residual resistance ratios ranging from 40 to 750. The c-axis resistivity is also metallic, but appears to be considerably larger than the in-plane value, consistent with the diantimonides being quasi-two-dimensional materials. The magnetoresistance of all members of the series is large, approximately linear in H at moderate fields, and is also dependent on the relative orientation of the applied magnetic fields to the crystallographic axes. The extreme case of SmSb{sub 2} has [{rho}(55kG){minus}{rho}(0)]/{rho}(0){gt}50000{percent} at T=2K and H{parallel}c. {copyright} {ital 1998} {ital The American Physical Society}

Budko, S.L.; Canfield, P.C. [Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States)] [Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011 (United States); Mielke, C.H.; Lacerda, A.H. [National High Magnetic Field Laboratory, Los Alamos Facility, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [National High Magnetic Field Laboratory, Los Alamos Facility, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

1998-06-01T23:59:59.000Z

356

Integration of a sludge deposition model into the ATHOS3 computer program and application to a sample U-tube steam generator  

SciTech Connect

This study pursues a approach to sludge deposition prediction, similar to that published by Keefer, et al.. Starting with the same basic model as Beal and Chen, Keefer, et al. made several simplifying assumptions so that a closed form solution to the equations describing deposition and reentrainment could be obtained. Using a similar approach, this study shows how the physics of the sludge model can be integrated directly into a steady-state thermal-hydraulic analysis computer program such as ATHOS3 to provide an estimate of the relative amounts of sludge expected to accumulate in various regions of a steam generator. This allows sludge deposition and reentrainment rates (i.e. rate coefficients) to be calculated at every node used to model the steam generator (which can be many thousands), so that sludge deposition patterns can readily be examined along with thermal-hydraulic parameters.

Keeton, L.W.; Keefer, R.H.; Clark, P.R.

1993-11-01T23:59:59.000Z

357

Estimation of lignite reserve in the Kalburcayiri field, Kangal basin, Sivas, Turkey  

Science Journals Connector (OSTI)

This paper addresses a case study on global estimation of lignite reserve in the Kalburcayiri field from the Sivas–Kangal basin, which is one of the most productive lignite basins in eastern Anatolia, Turkey. The two lignite seams, which were developed in a fresh-water lacustrine depositional environment during the Pliocene time, are currently being exploited in the Kalburcayiri open-cast mine for feed coal to a power plant with 300-MW capacity. Tonnage, thickness and quality parameters (ash yield, total sulphur content, and calorific value) of the lignite are variables considered in this study. The global estimates of these variables together with 95% confidence limits are obtained using the approximation principle of global estimation. A random stratified grid is fitted to available boreholes; the variograms for thickness and lignite quality parameters are estimated and modeled. The models are used in calculating estimation error variances that will later be used in constructing 95% confidence intervals for the true values.

A.Erhan Tercan; Ali Ihsan Karayigit

2001-01-01T23:59:59.000Z

358

The algorithm of drawing the contour lines of the surfaces that resulted from the intersection of a plane with a deposit or a deposit unit  

Science Journals Connector (OSTI)

In this paper we present an algorithm of drawing the contour lines of the surfaces that resulted from the intersection of a plane with a deposit or a deposit unit. Some of the general data and the thorough data relative to the knowledge of a deposit ... Keywords: contour line, deposit, deposit unit, model, section, surface

Nicolae Dobritoiu

2009-07-01T23:59:59.000Z

359

Risk assessment for the Waste Technologies Industries (WTI) hazardous waste incinerator facility (east Liverpool, Ohio). Volume 4. Atmospheric dispersion and deposition modeling of emissions. Draft report  

SciTech Connect

The report constitutes a comprehensive site-specific risk assessment for the WTI incineration facility located in East Liverpool, OH. Volume IV describes the air dispersion model used to estimate air concentrations and particle deposition, as well as the results of the modeling exercise.

NONE

1995-11-01T23:59:59.000Z

360

Ion bombardment in silane VHF deposition plasmas  

SciTech Connect

The measurement of mass resolved ion energy distributions at the grounded substrate in an RF glow discharge allows to determine the ion flux and the ion energy flux towards the surface of a growing hydrogenated amorphous silicon (a-Si:H) layer. This provides the means to study the influence of ions on the structural properties of a-Si:H. Here the authors focus on the {alpha}-{gamma}{prime} transition as occurs in silane-hydrogen plasmas at an RF frequency of 50 MHz and a substrate temperature of 250 C. The structural properties of the layers appear to depend on the kinetic energy of the arriving ions. This is supported by measurements of ion fluxes under other deposition conditions and by characterization of the corresponding layers. The influence of ions on the growth is discussed in terms of their flux, and the amount of delivered kinetic and potential energy to the growing film. The measurements suggest that a threshold energy of about 5 eV per deposited atom is needed for the construction of a dense amorphous silicon network.

Hamers, E.A.G.; Bezemer, J.; Meiling, H.; Van Sark, W.G.J.H.M.; Van Der Weg, W.F.

1997-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

On the dry deposition of submicron particles  

SciTech Connect

The air-surface exchange of particles can have a strong role in determining the amount, size, and chemical composition of particles in the troposphere. Here the authors consider only dry processes (deposition processes not directly aided by precipitation) and mostly address particles less than about 2 {micro}m in diameter (often referred to as submicron particles because most of such particles are less than 1 {micro}m in diameter). The processes that control the dry exchange of particulate material between the atmosphere and the surface of the Earth are numerous, highly varied, and sometimes poorly understood. As a result, determining which of the surface processes to parameterize or simulate in modeling the tropospheric mass budget of a particulate substance can be a significant challenge. Dry deposition, for example, can be controlled by a combination of Brownian diffusion, impaction, interception, and gravitational settling, depending on the size of the particles, the roughness of the surface on both micrometeorological and microscopic scales, the geometrical structure of vegetative canopies, and other surface characteristics such as wetness. Particles can be added to the lower atmosphere by resuspension from land surfaces and sea spray. The roles of rapid gas-to-particle conversion and growth or shrinkage of particles as a result of water condensation or evaporation in the lower few meters of the atmosphere can also have a significant impact on particle concentrations in the lower atmosphere. Here, a few micrometeorological observations and inferences on particle air-surface exchange are briefly addressed.

Wesely, M. L.

1999-10-08T23:59:59.000Z

362

Laser techniques for studying chemical vapor deposition  

SciTech Connect

Chemical vapor deposition (CVD) is widely used to produce thin films for microelectronics, protective coatings and other materials processing applications. Despite the large number of applications, however, little is known about the fundamental chemistry and physics of most CVD processes. CVD recipes have generally been determined empirically, but as process requirements become more stringent, a more basic understanding will be needed to improve reactor design and speed process optimization. In situ measurements of the reacting gas are important steps toward gaining such an understanding, both from the standpoint of characterizing the reactor and testing models of a CVD process. Our work, a coordinated program of experimental and theoretical research in the fundamental mechanisms of CVD, illustrates the application of laser techniques to the understanding of a CVD system. We have used a number of laser-based techniques to probe CVD systems and have compared our measurements with predictions from computer models, primarily for the silane CVD system. The silane CVD model solves the two-dimensional, steady-state boundary layer equations of fluid flow coupled to 26 elementary chemical reactions describing the thermal decomposition of silane and the subsequent reactions of intermediate species that result in the deposition of a silicon film.

Ho, P.; Breiland, W.G.; Coltrin, M.E.

1990-01-01T23:59:59.000Z

363

Carbon deposition in steam reforming and methanation  

SciTech Connect

The purpose of this review is to survey recent studies of carbon deposition on metals used as catalysts in steam reforming and methanation, emphasizing research where significant progress has been made. Where possible, an attempt is made to treat the fundamental nature of carbon formation and deactivation by carbon and the relationships between these two phenomena. Steam reforming and methanation are emphasized in this review because (1) deactivation of catalysts by carbon deposits is a serious concern in both processes, (2) much of the previous research with carbon formation on metals involved one or the other of these two reactions, and (3) there are interesting differences and similarities between these two reactions; for example, methanation is typically carried out at moderate reaction temperatures (200-450/sup 0/C) while steam reforming is typically carried out at significantly higher reaction temperatures (600-900/sup 0/C). Yet the two reactions are very closely related, since methane steam reforming is the reverse of methanation of CO. Moreover, there is evidence that some of the carbons formed in these two different processes are similar in their morphology.

Bartholomew, C.H.

1982-01-01T23:59:59.000Z

364

Trace element and REE composition of five samples of the Yucca Mountain calcite-silica deposits. Special report No. 8  

SciTech Connect

The attached materials document the results of part of a recent effort of geochemical sampling and analysis at Yucca Mountain and nearby regions. The efforts come as a result of interest in comprehensive analyses of rare earth elements (REE), lanthanum (La) through lutecium (Lu). Several additional, non-REE analyses were obtained as well. Commercially available REE analyses have proved to be insufficiently sensitive for geochemical purposes. Dr. Roman Schmitt at the Radiation Center at Oregon State University in Corvallis was sent five samples as a trial effort. The results are very encouraging. The purpose of compiling Dr. Schmitt`s report and the other materials is to inform the sponsor of his independent observations of these results and other information that sent to him. To provide a more complete appreciation of the utility of REE analyses a copy of Dave Vaniman`s recent article is included in which he notes that REE analyses from Yucca Mountain indicate the occurrence of two distinctly different REE patterns as do several other chemical parameters of the calcite-silica deposits. Our four samples with high equivalent CaCO{sub 3} were collected from sites we believe to be spring deposits. One sample, 24D, is from southern Crater Flat which is acknowledged by U.S.G.S. investigators to be a spring deposit. All four of these samples have REE patterns similar to those from the saturated zone reported by Vaniman.

Livingston, D.

1993-07-01T23:59:59.000Z

365

Atmospheric pressure plasma chemical vapor deposition system for high-rate deposition of functional materials  

Science Journals Connector (OSTI)

The atmospheric pressure plasmachemical vapor deposition(CVD) system has been developed to fabricate functional thin films at very high deposition rate. The atmospheric pressure plasma in which high-density radicals are created has been effectively used to depositthin films. Combination of the newly designed rotary electrode and the 150 MHz very high frequency power supply makes it possible not only to generate the high-density atmospheric pressure plasma but also to avoid ion bombardment against the film. By virtue of these noble characteristics of the system high quality films can be fabricated at an unprecedented high deposition rate. In order to demonstrate the effectiveness of the atmospheric pressure plasmaCVD system hydrogenated amorphous silicon (a- Si:H ) films were prepared in gas mixtures containing He H 2 and SiH 4 . The results showed that homogeneous a- Si:H films grew when substrates were heated at 200?°C. Extremely high deposition rate which was more than 100 times faster than that of the conventional low-pressure plasma CVD technique was realized.

Y. Mori; K. Yoshii; H. Kakiuchi; K. Yasutake

2000-01-01T23:59:59.000Z

366

Examples of Cost Estimation Packages  

Directives, Delegations, and Requirements

Estimates can be performed in a variety of ways. Some of these are for projects for an undefined scope, a conventional construction project, or where there is a level of effort required to complete the work. Examples of cost estimation packages for these types of projects are described in this appendix.

1997-03-28T23:59:59.000Z

367

5, 30473104, 2005 Estimates of  

E-Print Network (OSTI)

parametrisations, one relating convective preciptation (CP scheme) to lightning flash15 distributionsACPD 5, 3047­3104, 2005 Estimates of lightning NOx production K. F. Boersma et al. Title Page Discussions Estimates of lightning NOx production from GOME satellite observations K. F. Boersma, H. J. Eskes

Paris-Sud XI, Université de

368

Energy Expenditure Estimation DEMO Application  

E-Print Network (OSTI)

of accelerometry. An average smart phone contains an inertial sensor and today we hardly leave our home without itEnergy Expenditure Estimation DEMO Application Bozidara Cvetkovi´c1,2 , Simon Kozina1,2 , Bostjan://www.mps.si Abstract. The paper presents two prototypes for the estimation of hu- man energy expenditure during normal

LuÂ?trek, Mitja

369

Lognormal Size Distribution Theory for Deposition of Polydisperse Aerosol Particles  

SciTech Connect

The moments method of the lognormal size distribution theory was applied to the deposition equation of a radioactive aerosol within a liquid-metal fast breeder reactor for analysis of postulated accidents. The deposition coefficient of Crump and Seinfeld was utilized to represent the Brownian and turbulent diffusions and the gravitational sedimentation. The deposition equation was converted into a set of three ordinary differential equations. This approach takes the view point that the size distribution of an aerosol is represented by a time-dependent lognormal size distribution function during the deposition process. Numerical calculations have been performed, and the results were found to be in good agreement with the exact solution. The derived model for aerosol deposition is convenient to use in a numerical general dynamic equation solution routine based on the moments method, where nucleation, condensation, coagulation, and deposition need to be solved simultaneously.

Park, S.H.; Lee, K.W. [Kwangju Institute of Science and Technology (Korea, Republic of)

2000-07-15T23:59:59.000Z

370

The formation of a single-pulse electrospark deposition spot  

Science Journals Connector (OSTI)

The investigation of the formation mechanism of the rotating-type electrospark deposition (ESD) was presented, based on studying the single-pulse electrospark deposition spot. Four different substrate/electrode couples were selected to produce single-pulse deposition spots. The similar morphology of the spots and element migration tendency were detected. A heuristic physical model was established to interpret this deposition process. The concept of “gush and splash effect” was originally proposed and proved as the dominant factor in the formation mechanism of the single-pulse electrospark deposition spot. In addition, the rotation behavior of the electrode was identified to impact on the formation of the single-pulse deposition spot.

Jun Liu; Ruijun Wang; Yiyu Qian

2005-01-01T23:59:59.000Z

371

Nanostructure templating using low temperature atomic layer deposition  

DOE Patents (OSTI)

Methods are described for making nanostructures that are mechanically, chemically and thermally stable at desired elevated temperatures, from nanostructure templates having a stability temperature that is less than the desired elevated temperature. The methods comprise depositing by atomic layer deposition (ALD) structural layers that are stable at the desired elevated temperatures, onto a template employing a graded temperature deposition scheme. At least one structural layer is deposited at an initial temperature that is less than or equal to the stability temperature of the template, and subsequent depositions made at incrementally increased deposition temperatures until the desired elevated temperature stability is achieved. Nanostructure templates include three dimensional (3D) polymeric templates having features on the order of 100 nm fabricated by proximity field nanopatterning (PnP) methods.

Grubbs, Robert K. (Albuquerque, NM); Bogart, Gregory R. (Corrales, NM); Rogers, John A. (Champaign, IL)

2011-12-20T23:59:59.000Z

372

MESOI Version 2. 0: an interactive mesoscale Lagrangian puff dispersion model with deposition and decay  

SciTech Connect

MESOI Version 2.0 is an interactive Lagrangian puff model for estimating the transport, diffusion, deposition and decay of effluents released to the atmosphere. The model is capable of treating simultaneous releases from as many as four release points, which may be elevated or at ground-level. The puffs are advected by a horizontal wind field that is defined in three dimensions. The wind field may be adjusted for expected topographic effects. The concentration distribution within the puffs is initially assumed to be Gaussian in the horizontal and vertical. However, the vertical concentration distribution is modified by assuming reflection at the ground and the top of the atmospheric mixing layer. Material is deposited on the surface using a source depletion, dry deposition model and a washout coefficient model. The model also treats the decay of a primary effluent species and the ingrowth and decay of a single daughter species using a first order decay process. This report is divided into two parts. The first part discusses the theoretical and mathematical bases upon which MESOI Version 2.0 is based. The second part contains the MESOI computer code. The programs were written in the ANSI standard FORTRAN 77 and were developed on a VAX 11/780 computer. 43 references, 14 figures, 13 tables.

Ramsdell, J.V.; Athey, G.F.; Glantz, C.S.

1983-11-01T23:59:59.000Z

373

Deposition method for producing silicon carbide high-temperature semiconductors  

DOE Patents (OSTI)

An improved deposition method for producing silicon carbide high-temperature semiconductor material comprising placing a semiconductor substrate composed of silicon carbide in a fluidized bed silicon carbide deposition reactor, fluidizing the bed particles by hydrogen gas in a mildly bubbling mode through a gas distributor and heating the substrate at temperatures around 1200.degree.-1500.degree. C. thereby depositing a layer of silicon carbide on the semiconductor substrate.

Hsu, George C. (La Crescenta, CA); Rohatgi, Naresh K. (W. Corine, CA)

1987-01-01T23:59:59.000Z

374

Red-Green Emitting and Superparamagnetic Nanomarkers Containing Fe3O4 Functionalized with Calixarene and Rare Earth Complexes  

Science Journals Connector (OSTI)

Red-Green Emitting and Superparamagnetic Nanomarkers Containing Fe3O4 Functionalized with Calixarene and Rare Earth Complexes ... ? Nuclear

Latif U. Khan; Hermi F. Brito; Jorma Hölsä; Kleber R. Pirota; Diego Muraca; Maria C.F.C. Felinto; Ercules E.S. Teotonio; Oscar L. Malta

2014-12-05T23:59:59.000Z

375

EGR Cooler Fouling- Visualization of Deposition and Removal Mechanis  

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

Presents experimental data on exhaust gas recirculation(EGR) cooler fouling using new test apparatus that allows for in-situ observation of deposition and removal processes

376

Chemical vapor deposition of amorphous semiconductor films. Final subcontract report  

SciTech Connect

Chemical vapor deposition (CVD) from higher order silanes has been studied for fabricating amorphous hydrogenated silicon thin-film solar cells. Intrinsic and doped a-Si:H films were deposited in a reduced-pressure, tubular-flow reactor, using disilane feed-gas. Conditions for depositing intrinsic films at growth rates up to 10 A/s were identified. Electrical and optical properties, including dark conductivity, photoconductivity, activation energy, optical absorption, band-gap and sub-band-gap absorption properties of CVD intrinsic material were characterized. Parameter space for depositing intrinsic and doped films, suitable for device analysis, was identified.

Rocheleau, R.E.

1984-12-01T23:59:59.000Z

377

S-shaped magnetic macroparticle filter for cathodic arc deposition  

SciTech Connect

A new magnetic macroparticle filter design consisting of two 90{sup o} filters forming an S-shape is described. Transport properties of this S-filter are investigated using Langmuir and deposition probes. It is shown that filter efficiency is product of the efficiencies of two 90{sup o} filters and the deposition rate is still acceptably high to perform thin film deposition. Films of amorphous hard carbon have been deposited using a 90{sup o} filter and the S-filter, and macroparticle content of the films are compared.

Anders, S.; Anders, A.; Dickinson, M.R.; MacGill, R.A.; Brown, I.G.

1996-04-01T23:59:59.000Z

378

USE OF ATOMIC LAYER DEPOSITION OF FUNCTIONALIZATION OF NANOPOROUS BIOMATERIALS  

SciTech Connect

Due to its chemical stability, uniform pore size, and high pore density, nanoporous alumina is being investigated for use in biosensing, drug delivery, hemodialysis, and other medical applications. In recent work, we have examined the use of atomic layer deposition for coating the surfaces of nanoporous alumina membranes. Zinc oxide coatings were deposited on nanoporous alumina membranes using atomic layer deposition. The zinc oxide-coated nanoporous alumina membranes demonstrated antimicrobial activity against Escherichia coli and Staphylococcus aureus bacteria. These results suggest that atomic layer deposition is an attractive technique for modifying the surfaces of nanoporous alumina membranes and other nanostructured biomaterials.

Brigmon, R.; Narayan, R.; Adiga, S.; Pellin, M.; Curtiss, L.; Stafslien, S.; Chisholm, B.; Monteiro-Riviere, N.; Elam, J.

2010-02-08T23:59:59.000Z

379

How to make deposition of images a reality  

Science Journals Connector (OSTI)

An analysis is performed of the technical and financial challenges to be overcome if deposition of primary experimental data is to become routine.

Guss, J.M.

2014-09-30T23:59:59.000Z

380

Liquid Metal Heat Exchanger for Geologic Deposits - Energy Innovation...  

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

heating apparatus that efficiently heats subterranean geological deposits, such as oil shale, to extract hydrocarbons for energy needs. The apparatus provides more efficient...

Note: This page contains sample records for the topic "deposits estimated rare" 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

Calculating Deposit Formation in the Pipelining of Waxy Crude Oils  

Science Journals Connector (OSTI)

Wax deposition from a waxy crude oil is modelled in turbulent flow in a pipeline. Molecular diffusion in a thin boundary layer...

S. Correra; A. Fasano; L. Fusi; D. Merino-Garcia

2007-04-01T23:59:59.000Z

382

Deposition of dopant impurities and pulsed energy drive-in  

DOE Patents (OSTI)

A semiconductor doping process which enhances the dopant incorporation achievable using the Gas Immersion Laser Doping (GILD) technique. The enhanced doping is achieved by first depositing a thin layer of dopant atoms on a semiconductor surface followed by exposure to one or more pulses from either a laser or an ion-beam which melt a portion of the semiconductor to a desired depth, thus causing the dopant atoms to be incorporated into the molten region. After the molten region recrystallizes the dopant atoms are electrically active. The dopant atoms are deposited by plasma enhanced chemical vapor deposition (PECVD) or other known deposition techniques.

Wickboldt, Paul (Walnut Creek, CA); Carey, Paul G. (Mountain View, CA); Smith, Patrick M. (San Jose, CA); Ellingboe, Albert R. (Malahide, IE)

2008-01-01T23:59:59.000Z

383

Deposition of dopant impurities and pulsed energy drive-in  

DOE Patents (OSTI)

A semiconductor doping process which enhances the dopant incorporation achievable using the Gas Immersion Laser Doping (GILD) technique. The enhanced doping is achieved by first depositing a thin layer of dopant atoms on a semiconductor surface followed by exposure to one or more pulses from either a laser or an ion-beam which melt a portion of the semiconductor to a desired depth, thus causing the dopant atoms to be incorporated into the molten region. After the molten region recrystallizes the dopant atoms are electrically active. The dopant atoms are deposited by plasma enhanced chemical vapor deposition (PECVD) or other known deposition techniques.

Wickboldt, Paul (Walnut Creek, CA); Carey, Paul G. (Mountain View, CA); Smith, Patrick M. (San Ramon, CA); Ellingboe, Albert R. (Fremont, CA)

1999-01-01T23:59:59.000Z

384

System and Method for Sealing a Vapor Deposition Source - Energy...  

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

costs and minimizes system downtime for cleaning Applications and Industries Thin film solar Deposition of any thin film Patents and Patent Applications ID Number Title and...

385

Plasma parameters in electrospark deposition of silver coatings  

Science Journals Connector (OSTI)

Spectroscopic measurements and mathematical simulations are conducted to study the composition and parameters of spark discharge in depositing coatings with silver electrodes using an Élitron-22 generator. The...

V. D. Kurochkin; L. P. Kravchenko; L. O. Kryachko…

2008-11-01T23:59:59.000Z

386

Loan/deposit links at rural Texas banks  

E-Print Network (OSTI)

: Agricultural Economics LOAN/DEPOSIT LINKS AT RURAL TEXAS RANKS A Thesis by VERA SURTON PODOLECKI Approved as to style and content by: fCha' an of Comm' ee) . '/ (Head' of Dep rtment) (Member ) (Membe May 1977 441'726 ABSTRACT Loan/Deposit Links... in agri- cultural lending on deposit level which in turn influences bank pro- fitability. This paper is directed towards providing the rural banker with tangible evidence of the effect of lending on deposit levels over time, and providing a...

Podolecki, Vera Burton

2012-06-07T23:59:59.000Z

387

CFD Analysis of Particle Deposition During DPF Filtration Processes  

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

A 3-D DPF model is developed to predict thermo-physical properties during filtration processes and to quantitatively investigate particle deposition regarding its size and number distribution.

388

Hydrogen Absorption Induced Metal Deposition on Palladium and...  

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

Hydrogen Absorption Induced Metal Deposition on Palladium and Palladium-Alloy Particles Brookhaven National Laboratory Contact BNL About This Technology

High resolution...

389

Analysis Of Hot Springs And Associated Deposits In Yellowstone...  

Open Energy Info (EERE)

Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Abstract The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and...

390

7th Annual Colorado Rare Plant Symposium Conservation Efforts and Status Review of G1 Plants of Colorado  

E-Print Network (OSTI)

7th Annual Colorado Rare Plant Symposium Conservation Efforts and Status Review of G1 Plants of Colorado September 10, 2010; 9:00 am-4:00 pm UC Denver Auraria Campus Denver, Colorado Join members of the Colorado Rare Plant Technical Committee (RPTC) for the 7th Annual Colorado Rare Plant Symposium. The RPTC

391

Effect of microstructure, grain size, and rare earth doping on the electrorheological performance of nanosized particle materials  

E-Print Network (OSTI)

and grain sizes were prepared by doping TiO2 or ZrO2 with rare earth (RE) elements, and by changingEffect of microstructure, grain size, and rare earth doping on the electrorheological performance-Hua Zhang,c Shu-Mei Chen,d Rui-Li Huange and Song Gaoa a State Key Laboratory of Rare Earth Materials

Gao, Song

392

PII S0016-7037(02)00888-8 EXAFS study of rare-earth element coordination in calcite  

E-Print Network (OSTI)

PII S0016-7037(02)00888-8 EXAFS study of rare-earth element coordination in calcite E. J. ELZINGA,1-structure (EXAFS) spectroscopy is used to characterize the local coordination of selected rare-earth elements (Nd3 for the increased coordination for the larger rare-earth elements involves bidentate ligation from a CO3 group

Peale, Robert E.

393

Depositional environments of the Kodiak Shelf, Alaska  

E-Print Network (OSTI)

of these envfronments are created by the bathymetry of tfii s!iel f affec+ing the flow of the shelf waters. Sediment in the re!ighs is characterized by high asti and forami- rifera content, higi poros Ity and low bu', k densi ty. The fine-i;i a in natiif e i i' 'I... and clay. The f'ine-g; ain nature nf tive sed'me!&t of the surf'icfal deposits suogests that. they al e lovi ene!"gy ivii Gniilents, The negative ". opography shelters t'tie sediment in the d pressions from erosion. Iv ACKi'lOWLEDGMENTS The wr1ter...

Burbach, Stuart Peter

2012-06-07T23:59:59.000Z

394

Vacuum deposition and curing of liquid monomers  

DOE Patents (OSTI)

The present invention is the formation of solid polymer layers under vacuum. More specifically, the present invention is the use of standard polymer layer-making equipment that is generally used in an atmospheric environment in a vacuum, and degassing the monomer material prior to injection into the vacuum. Additional layers of polymer or metal may be vacuum deposited onto solid polymer layers. Formation of polymer layers under a vacuum improves material and surface characteristics, and subsequent quality of bonding to additional layers. Further advantages include use of less to no photoinitiator for curing, faster curing, fewer impurities in the polymer electrolyte, as well as improvement in material properties including no trapped gas resulting in greater density, and reduced monomer wetting angle that facilitates spreading of the monomer and provides a smoother finished surface.

Affinito, J.D.

1993-11-09T23:59:59.000Z

395

Microsoft Word - ARPA-E_RareEarth_Workshop_Overview_v6  

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

ARPA-E WORKSHOP ARPA-E WORKSHOP Rare Earth and Critical Materials December 6, 2010 in Arlington, VA Background ...................................................................................................................................................................................... 2 Breakout Sessions and Participant Preparation .............................................................................................................. 8 Agenda ................................................................................................................................................................................................ 9 Contact Information ................................................................................................................................................................... 10

396

Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Materials  

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

Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Materials for a Clean Energy Future Trans-Atlantic Workshop on Rare Earth Elements and Other Critical Materials for a Clean Energy Future December 3, 2010 Session A: Setting the Scene - Critical Materials for a Clean Energy Future Diana Bauer, Office of Policy and International Affairs, U.S. Department of Energy, Highlights of the DOE Critical Materials Strategy Antje Wittenberg, Directorate General for Enterprise and Industry, The EU Raw Materials Initiative and the Report of the Ad-hoc Group (tbc) Tom Lograsso, Ames Laboratory (Iowa State University), Future Directions in Rare Earth Research: Critical Materials for 21st Century Industry Derk Bol, Materials Innovation Institute M2i (Netherlands) M2i, Material

397

Development of the Polish wasteless technology of apatite phosphogypsum utilization with recovery of rare earths  

Science Journals Connector (OSTI)

The most promising source of rare earth elements in Poland is apatite phosphogypsum, a waste product obtained in the process of phosphoric acid production from Kola apatite. Depending on the technology used, as the hydration ratio of calcium sulphate is changed from hemihydrate to dihydrate, the content of rare earths varies from 0.6% to 0.3% Ln2O3 respectively. Technological flow charts for recovering the rare earths as a byproduct have been developed. The basic process used in the technology consists of three steps: apatite phosphogypsum leaching with dilute sulphuric acid solution; separation of rare earth concentrates from leaching sulphuric acid by preconcentration via evaporization, liquid-liquid extraction or precipitation method; anhydrite production from purified phosphogypsum by recrystallization in concentrated sulphuric acid solution.

A. Jarosi?ski; J. Kowalczyk; Cz. Mazanek

1993-01-01T23:59:59.000Z

398

New data on mineral forms of rare metals in phosphogypsum wastes  

Science Journals Connector (OSTI)

Phosphogypsum is an industrial waste of the processing ... . This is a valuable and promising technogenous rare-metal feedstock. The samples of fresh and old phosphogypsum were studied using precision physical te...

A. E. Samonov

2011-09-01T23:59:59.000Z

399

Extremal Dependence Indices: Improved Verification Measures for Deterministic Forecasts of Rare Binary Events  

Science Journals Connector (OSTI)

Verifying forecasts of rare events is challenging, in part because traditional performance measures degenerate to trivial values as events become rarer. The extreme dependency score was proposed recently as a nondegenerating measure for the ...

Christopher A. T. Ferro; David B. Stephenson

2011-10-01T23:59:59.000Z

400

Origin of enhanced magnetization in rare earth doped multiferroic bismuth ferrite  

SciTech Connect

We report structural and magnetic properties of rare earth doped Bi{sub 0.95}R{sub 0.05} FeO{sub 3} (R?=?Y, Ho, and Er) submicron particles. Rare earth doping enhances the magnetization and the magnetization shows an increasing trend with decreasing dopant ionic radii. In contrast to the x-ray diffraction pattern, we have seen a strong evidence for the presence of rare earth iron garnets R{sub 3}Fe{sub 5}O{sub 12} in magnetization measured as a function of temperature, in selected area electron diffraction, and in Raman measurements. Our results emphasised the role of secondary phases in the magnetic property of rare earth doped BiFeO{sub 3} compounds along with the structural distortion favoring spin canting by increase in Dzyaloshinskii-Moriya exchange energy.

Nayek, C.; Thirmal, Ch.; Murugavel, P., E-mail: muruga@iitm.ac.in [Department of Physics, Indian Institute of Technology Madras, Chennai 36 (India); Tamilselvan, A.; Balakumar, S. [National Centre for Nanoscience and Nanotechnology, University of Madras, Chennai 25 (India)

2014-02-21T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Structure of the rare archaeal biosphere and seasonal dynamics of active ecotypes in surface coastal waters  

Science Journals Connector (OSTI)

...Heidelberg JF Kirchman DL ( 2011 ) Activity of abundant and rare bacteria in a coastal ocean . Proc Natl Acad Sci USA 108 : 12776 – 12781 . 5 Lennon JT Jones SE ( 2011 ) Microbial seed banks: The ecological and evolutionary implications of dormancy...

Mylène Hugoni; Najwa Taib; Didier Debroas; Isabelle Domaizon; Isabelle Jouan Dufournel; Gisèle Bronner; Ian Salter; Hélène Agogué; Isabelle Mary; Pierre E. Galand

2013-01-01T23:59:59.000Z

402

Recycling Rare Earth Elements from Industrial Wastewater with Flowerlike Nano-Mg(OH)2  

Science Journals Connector (OSTI)

Recycling Rare Earth Elements from Industrial Wastewater with Flowerlike Nano-Mg(OH)2 ... The pilot-scale experiment indicated that the self-supported flowerlike nano-Mg(OH)2 had great potential to recycle REEs from industrial wastewater. ...

Chaoran Li; Zanyong Zhuang; Feng Huang; Zhicheng Wu; Yangping Hong; Zhang Lin

2013-09-13T23:59:59.000Z

403

Synthesis, Computations and Characterizations of Low Dimensional Rare-Earth Compounds  

E-Print Network (OSTI)

Reduced rare-earth (Ln, lanthanide elements) compounds with low-dimensional Ln-Ln-bonded structures are promising candidates for magnetic materials because Ln-Ln-bonded molecules and solids have delocalized 5d electrons that make strong magnetic...

Chen, Chun-Yu

2014-04-28T23:59:59.000Z

404

Tricking Iron into Acting like a Rare-earth Element | The Ames...  

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

Tricking Iron into Acting like a Rare-earth Element By slipping iron between two nitrogen atoms in a lithium matrix, researchers are able to trick iron into having magnetic...

405

Facility for Rare Isotope Beams: The Journey Has Begun on DOE's latest Scientific User Facility  

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

After many years of planning, ground was officially broken on the Facility for Rare Isotope Beams (FRIB) in a ceremony held at the construction site on Michigan State University’s campus.

406

Geochemistry of dissolved rare earth elements in the Equatorial Pacific Ocean  

Science Journals Connector (OSTI)

Seawater samples were collected from four locations in the Equatorial Pacific Ocean during the MR02-K06 cruise of the R/V Mirai...and analyzed for dissolved rare earth elements (REEs) using inductively coupled pl...

Zhong-Liang Wang; Masatoshi Yamada

2007-04-01T23:59:59.000Z

407

A Forecast of Composition of Coal Wastes and of their Directions of Utilization During Explorations in Coal Deposits in the Ussr  

Science Journals Connector (OSTI)

SUMMARY The production methods used In the USSR as well as the investigations of the composition, technological properties and wastes reserves from mining operations, coal preparation and coal utilization at the process of deposits surveying have been considered in the report. The principles and specifications, used for the evaluation of associated with coal materials, mineral components and rare elements, contained in solid fuels including the methods for investigation of the elements, hazardous for the environment, have been presented. The directions and specifications (norms) for the utilization of overburden sands and gravel, clays, carbonates and other rocks, coaly rocks of internal ripping material, coal preparation wastes, ashes and slags have been considered.

V.R. Kler; M. Ya. Shpirt

1987-01-01T23:59:59.000Z

408

Intracollisional Interference in the Spectrum of HD Mixed with Rare Gases  

Science Journals Connector (OSTI)

We present the first observation and interpretation of an interference effect in the infrared absorption spectrum of HD-rare-gas mixtures. This effect, due to constructive or destructive interference between allowed and collision-induced dipoles during a collision, is referred to as "intracollisional interference." Is is manifested by the appearance of a narrow line at the R1(1) position which increases with rare-gas density. This interference has relevance to the determination of HD abundance in planetary atmospheres.

J. D. Poll; R. H. Tipping; R. D. G. Prasad; S. Paddi Reddy

1976-02-02T23:59:59.000Z

409

Probabilistic accident consequence uncertainty analysis: Dispersion and deposition uncertainty assessment, main report  

SciTech Connect

The development of two new probabilistic accident consequence codes, MACCS and COSYMA, was completed in 1990. These codes estimate the risks presented by nuclear installations based on postulated frequencies and magnitudes of potential accidents. In 1991, the US Nuclear Regulatory Commission (NRC) and the Commission of the European Communities (CEC) began a joint uncertainty analysis of the two codes. The ultimate objective of the joint effort was to develop credible and traceable uncertainty distributions for the input variables of the codes. Expert elicitation was identified as the best technology available for developing a library of uncertainty distributions for the selected consequence parameters. The study was formulated jointly and was limited to the current code models and to physical quantities that could be measured in experiments. Experts developed their distributions independently. To validate the distributions generated for the wet deposition input variables, samples were taken from these distributions and propagated through the wet deposition code model. Resulting distributions closely replicated the aggregated elicited wet deposition distributions. To validate the distributions generated for the dispersion code input variables, samples from the distributions and propagated through the Gaussian plume model (GPM) implemented in the MACCS and COSYMA codes. Project teams from the NRC and CEC cooperated successfully to develop and implement a unified process for the elaboration of uncertainty distributions on consequence code input parameters. Formal expert judgment elicitation proved valuable for synthesizing the best available information. Distributions on measurable atmospheric dispersion and deposition parameters were successfully elicited from experts involved in the many phenomenological areas of consequence analysis. This volume is the first of a three-volume document describing the project.

Harper, F.T.; Young, M.L.; Miller, L.A. [Sandia National Labs., Albuquerque, NM (United States); Hora, S.C. [Univ. of Hawaii, Hilo, HI (United States); Lui, C.H. [Nuclear Regulatory Commission, Washington, DC (United States); Goossens, L.H.J.; Cooke, R.M. [Delft Univ. of Technology (Netherlands); Paesler-Sauer, J. [Research Center, Karlsruhe (Germany); Helton, J.C. [and others

1995-01-01T23:59:59.000Z

410

Reinforcing flood–risk estimation  

Science Journals Connector (OSTI)

...However, most ood-risk estimates support decisions...charac- ter. These are investment decisions, where the...current level of ood risk, making improvements...generated a national ood-risk map with a high political and societal impact...

2002-01-01T23:59:59.000Z

411

Estimation of resources and reserves  

E-Print Network (OSTI)

This report analyzes the economics of resource and reserve estimation. Current concern about energy problems has focused attention on how we measure available energy resources. One reads that we have an eight-year oil ...

Massachusetts Institute of Technology. Energy Laboratory.

1982-01-01T23:59:59.000Z

412

Synthesis and luminescence properties of rare earth activated phosphors for near UV-emitting LEDs for efficacious generation of white light  

E-Print Network (OSTI)

of R 2 SiO 5 (R = rare earth elements)?, Mater. Res. Bull.QE Quantum Efficiency RE Rare Earth Elements RGB Red, green,transition metal or rare earth elements. The standard

Han, Jinkyu

2013-01-01T23:59:59.000Z

413

Synthesis and characterization of visible emission from rare-earth doped aluminum nitride, gallium nitride and gallium aluminum nitride powders and thin films  

E-Print Network (OSTI)

74 (19) 2821 (1999). F. H. Spedding, Rare-earth Elements, inby the use of rare- earth elements as color emitters inpowders activated with rare-earth elements Eu 3+ , Tb 3+ ,

Tao, Jonathan Huai-Tse

2010-01-01T23:59:59.000Z

414

As-deposited low-strain LPCVD (low-pressure, chemical-vapor-deposition) polysilicon  

SciTech Connect

As-deposited polysilicon films with very low residual strain (lower than 5 x 10/sup -5/) are obtained by a low-pressure, chemical-vapor-deposition (LPCVD) process. Straight polysilicon bridges 300 ..mu..m long, 1.2 ..mu..m thick, and 2 to 20 ..mu..m wide, made using this process. No buckling has been observed in any of the nearly one thousand bridges of this type made in two separate process runs. In addition, no problems of sticking between the bridges and the substrate were encountered with these structures. The polysilicon films from which the beams were fabricated were deposited by pyrolyzing silane at 605/degree/C on a phosphosilicate-glass (PSG) layer (8 wt % P). The PSG layer serves as a sacrificial layer to be subsequently etched away to free the bridge. Our research is aimed at obtaining an understanding of these relationships through consideration of the role of interfacial stresses and the kinetics of initial crystalline nucleation. The technique for producing these low-strain films is significant, however, because no high-temperature annealing steps are required to produce them. 4 refs., 4 figs.

Fan, L.S.; Muller, R.S.

1988-08-01T23:59:59.000Z

415

Chapter 6 - Subsea Cost Estimation  

Science Journals Connector (OSTI)

Publisher Summary This chapter provides guidelines for cost estimation during a project feasibility study, where the accuracy range is between ± 30% for subsea field development projects. Subsea cost refers to the cost of the whole project, which generally includes the capital expenditures (CAPEX) and operation expenditures (OPEX) of the subsea field development. The feasibility studies are performed before execution of the project, which may include three phases as shown in the figure: prefield development; conceptual/feasibility study; and front-end engineering design (FEED). Cost estimations are made for several purposes, and the methods used for the estimations as well as the desired amount of accuracy will be different. The cost estimation classifications according to Association for the Advancement of Cost Engineering (AACE): level of project definition: expressed as percentage of complete definition; end usage: typical purpose of estimation; methodology: typical estimating method; expected accuracy range: typical ± range relative to best index of 1; and preparation effort: typical degree of effort relative to least cost index of 1.

Yong Bai; Qiang Bai

2010-01-01T23:59:59.000Z

416

Predicting interwell heterogeneity in fluvial-deltaic reservoirs: Outcrop observations and applications of progressive facies variation through a depositional cycle  

SciTech Connect

Nearly 11 billion barrels of mobile oil remain in known domestic fluvial-deltaic reservoirs despite their mature status. A large percentage of this strategic resource is in danger of permanent loss through premature abandonment. Detailed reservoir characterization studies that integrate advanced technologies in geology, geophysics, and engineering are needed to identify remaining resources that can be targeted by near-term recovery methods, resulting in increased production and the postponement of abandonment. The first and most critical step of advanced characterization studies is the identification of reservoir architecture. However, existing subsurface information, primarily well logs, provides insufficient lateral resolution to identify low-permeability boundaries that exist between wells and compartmentalize the reservoir. Methods to predict lateral variability in fluvial-deltaic reservoirs have been developed on the basis of outcrop studies and incorporate identification of depositional setting and position within a depositional cycle. The position of a reservoir within the framework of a depositional cycle is critical. Outcrop studies of the Cretaceous Ferron Sandstone of Utah have demonstrated that the architecture and internal heterogeneity of sandstones deposited within a given depositional setting (for example, delta front) vary greatly depending upon whether they were deposited in the early, progradational part of a cycle or the late, retrogradational part of a cycle. The application of techniques similar to those used by this study in other fluvial-deltaic reservoirs will help to estimate the amount and style of remaining potential in mature reservoirs through a quicklook evaluation, allowing operators to focus characterization efforts on reservoirs that have the greatest potential to yield additional resources.

Knox, P.R.; Barton, M.D. [Univ. of Texas, Austin, TX (United States)

1997-08-01T23:59:59.000Z

417

Radioactive Decay Energy Deposition in Supernovae and the Exponential/Quasi-Exponential Behavior of Late-Time Supernova Light Curves  

E-Print Network (OSTI)

The radioactive decay energy (RDE) deposition in supernovae from the decay chain Ni56-Co56-Fe56 usually directly powers the UV/optical/IR (UVOIR) bolometric luminosity of supernovae in their quasi-steady state phase until very late times. The result for this phase is exponential/quasi-exponential UVOIR bolometric light curves and often exponential/quasi-exponential broad band light curves. A presentation is given of a simple, approximate, analytic treatment of RDE deposition that provides a straightforward understanding of the exponential/quasi-exponential behavior of the UVOIR bolometric luminosity and a partial understanding of the exponential/quasi-exponential behavior of the broad band light curves. The treatment reduces to using a normalized deposition function N_{Ni}^{*}(t) as an analysis tool. The one free parameter of N_{Ni}^{*}(t) is a fiducial time t_{0} which governs time-varying gamma-ray optical depth behavior of a supernova. The N_{Ni}^{*}(t) function is used to analyze the preliminary UVOIR bolometric light curve of SN Ic 1998bw (the possible cause of gamma-ray burst GRB980425). The SN 1998bw t_{0} is found to be 134.42 days and a prediction is made for the evolution of the SN 1998bw RDE deposition curve and quasi-steady state UVOIR bolometric light curve out to day 1000 after the explosion. A very crude estimate of the SN 1998bw mass obtained from the light curve analysis is 4.26 M_{Sun}. As further examples of the simple analytic treatment, the RDE deposition and luminosity evolution of SN Ia 1992A and SN II 1987A have also been examined. The simple analytic treatment of RDE deposition has actually existed for 20 years at least without, apparently, being discussed at length. The main value of this paper is the explicit, detailed, general presentation of this analytic treatment.

David J. Jeffery

1999-07-01T23:59:59.000Z

418

Energy deposition by weakly interacting massive particles: a comprehensive study  

Science Journals Connector (OSTI)

......necessary to study the energy deposition in the surrounding...pair annihilates into muons; and (iii) a 200-GeV...cascade. The fractional energy depositions into the...pair annihilates into muons and gives as a result a hard energy spectrum in agreement......

C. Evoli; M. Valdés; A. Ferrara; N. Yoshida

2012-05-01T23:59:59.000Z

419

AIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER WATERSHED  

E-Print Network (OSTI)

) provides a summary of major scientific reports on air pollution and public health. The reports includeAIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER WATERSHED Annual Progress Report for FY 2005 through the US Department of Interior #12;PROGRESS REPORT: AIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER

District of Columbia, University of the

420

Prediction of ash deposition in pulverized coal combustion systems  

SciTech Connect

A predictive scheme based on CCSEM flyash data and Computational Fluid Dynamics (CFD) has been developed to study the slagging propensity of coals. The model has been applied to predict the deposition potential of three UK coals; Bentinck, Daw Mill and Silverdale, in a pilot scale single burner ash deposition test facility and an utility size multi-burner front wall-fired furnace. The project is part of a collaborative research program sponsored by the UK Department of Trade and Industry and involved various industrial organizations and universities. The objective of the project is to understand the fundamental aspects of slagging in pulverized coal-fired combustion systems. This paper is a sequel to the poster paper entitled: The Prediction of Ash Deposition in a Coal Fired Axi-symmetric Furnace, presented in the last Engineering Foundation Conference. The present model predicts the relative slagging propensity of the three coals correctly. The predicted deposition patterns are also consistent with the observations. The results from the model indicate a preferential deposition of iron during the initial stage of ash deposition. The average compositions of the deposits become closer to that of the bulk ash when the accumulation of ash deposits is taken into account.

Lee, F.C.C.; Riley, G.S. [National Power PLC, Swindon (United Kingdom); Lockwood, F.C. [Imperial Coll. of Science, Technology and Medicine, London (United Kingdom). Dept. of Mechanical Engineering

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "deposits estimated rare" 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

Ash Deposition Behavior of Upgraded Brown Coal and Bituminous Coal  

Science Journals Connector (OSTI)

Ash Deposition Behavior of Upgraded Brown Coal and Bituminous Coal ... Ash with a low melting point causes slagging and fouling problems in pulverized coal combustion boilers. ... The ash composition in coal and operational conditions in boilers such as heat load greatly affect the ash deposition behavior. ...

Katsuya Akiyama; Haeyang Pak; Toshiya Tada; Yasuaki Ueki; Ryo Yoshiie; Ichiro Naruse

2010-07-22T23:59:59.000Z

422

Gas Phase Electrodeposition: A Programmable Multimaterial Deposition Method for  

E-Print Network (OSTI)

plasma induced synthesis,11 and arc discharge12,13 can produce nanoparticles and nanow- ires of various-phase deposition process produces charged tungsten, and platinum and uses externally electrodeposition, arc discharge, atmospheric pressure gas phase deposition, nanoparticle nanostructured electrodes

Jacobs, Heiko O.

423

Sputter deposition for multi-component thin films  

DOE Patents (OSTI)

Ion beam sputter-induced deposition using a single ion beam and a multicomponent target is capable of reproducibly producing thin films of arbitrary composition, including those which are close to stoichiometry. Using a quartz crystal deposition monitor and a computer controlled, well-focused ion beam, this sputter-deposition approach is capable of producing metal oxide superconductors and semiconductors of the superlattice type such as GaAs-AlGaAs as well as layered metal/oxide/semiconductor/superconductor structures. By programming the dwell time for each target according to the known sputtering yield and desired layer thickness for each material, it is possible to deposit composite films from a well-controlled sub-monolayer up to thicknesses determined only by the available deposition time. In one embodiment, an ion beam is sequentially directed via a set of X-Y electrostatic deflection plates onto three or more different element or compound targets which are constituents of the desired film. In another embodiment, the ion beam is directed through an aperture in the deposition plate and is displaced under computer control to provide a high degree of control over the deposited layer. In yet another embodiment, a single fixed ion beam is directed onto a plurality of sputter targets in a sequential manner where the targets are each moved in alignment with the beam under computer control in forming a multilayer thin film. This controlled sputter-deposition approach may also be used with laser and electron beams.

Krauss, Alan R. (Plainfield, IL); Auciello, Orlando (Cary, NC)

1990-01-01T23:59:59.000Z

424

Sputter deposition for multi-component thin films  

DOE Patents (OSTI)

Ion beam sputter-induced deposition using a single ion beam and a multicomponent target is capable of reproducibly producing thin films of arbitrary composition, including those which are close to stoichiometry. Using a quartz crystal deposition monitor and a computer controlled, well-focused ion beam, this sputter-deposition approach is capable of producing metal oxide superconductors and semiconductors of the superlattice type such as GaAs-AlGaAs as well as layered metal/oxide/semiconductor/superconductor structures. By programming the dwell time for each target according to the known sputtering yield and desired layer thickness for each material, it is possible to deposit composite films from a well-controlled sub-monolayer up to thicknesses determined only by the available deposition time. In one embodiment, an ion beam is sequentially directed via a set of X-Y electrostatic deflection plates onto three or more different element or compound targets which are constituents of the desired film. In another embodiment, the ion beam is directed through an aperture in the deposition plate and is displaced under computer control to provide a high degree of control over the deposited layer. In yet another embodiment, a single fixed ion beam is directed onto a plurality of sputter targets in a sequential manner where the targets are each moved in alignment with the beam under computer control in forming a multilayer thin film. This controlled sputter-deposition approach may also be used with laser and electron beams. 10 figs.

Krauss, A.R.; Auciello, O.

1990-05-08T23:59:59.000Z

425

QuestionQuestion How does nitrogen deposition affect roadside  

E-Print Network (OSTI)

al. 2004. Concentrations of ammonia and nitrogen dioxide at roadside verges, and their contributionQuestionQuestion How does nitrogen deposition affect roadside plant community composition? 1. Is there a gradient of nitrogen deposition to freeway verges from traffic exhaust? 2. Are there other sources of N

Hall, Sharon J.

426

Tropospheric Reactive Nitrogen Speciation, Deposition, and Chemistry at Harvard Forest  

E-Print Network (OSTI)

and absolute contributions of nitric acid (HNO3) and NOx (nitric oxide (NO) + nitrogen dioxide (NO2)) to totalTropospheric Reactive Nitrogen Speciation, Deposition, and Chemistry at Harvard Forest A thesis. Steven C. Wofsy Cassandra Volpe Horii Tropospheric Reactive Nitrogen Speciation, Deposition

427

Electroplating method for producing ultralow-mass fissionable deposits  

DOE Patents (OSTI)

A method for producing ultralow-mass fissionable deposits for nuclear reactor dosimetry is described, including the steps of holding a radioactive parent until the radioactive parent reaches secular equilibrium with a daughter isotope, chemically separating the daughter from the parent, electroplating the daughter on a suitable substrate, and holding the electroplated daughter until the daughter decays to the fissionable deposit.

Ruddy, Francis H. (Monroeville, PA)

1989-01-01T23:59:59.000Z

428

Plasma-Therm Workshop: Fundamentals of Plasma Processing (Etching & Deposition)  

E-Print Network (OSTI)

Plasma-Therm Workshop: Fundamentals of Plasma Processing (Etching & Deposition) Nanofabrication The workshop will focus on the fundamentals of plasma etching and deposition. Lectures will include an introduction to vacuum technology, the basics of plasma and plasma reactors and an overview of mechanisms

Martin, Jan M.L.

429

Hydrothermal Activity and Travertine Deposits in Valles Caldera Paul Withers  

E-Print Network (OSTI)

Hydrothermal Activity and Travertine Deposits in Valles Caldera Paul Withers Valles Caldera for the Valles Caldera hydrothermal system [fig]. Some fluids escape in acid springs and mud pits (Sulphur mineral deposits as they cool, specifically travertine. Travertine is a freshwater, calcium carbonate

Withers, Paul

430

Constraining oceanic dust deposition using surface ocean dissolved Al  

E-Print Network (OSTI)

Constraining oceanic dust deposition using surface ocean dissolved Al Qin Han,1 J. Keith Moore,1; accepted 7 December 2007; published 12 April 2008. [1] We use measurements of ocean surface dissolved Al (DEAD) model to constrain dust deposition to the oceans. Our Al database contains all available

Zender, Charles

431

A Geostatistical Study of the Uranium Deposit at Kvanefjeld,  

E-Print Network (OSTI)

with the geology. It is also shown that, although anisotropy exists, the uranium variation has a secondRisa-R-468 A Geostatistical Study of the Uranium Deposit at Kvanefjeld, The Ilimaussaq Intrusion A GEOSTATISTICAL STUDY OF THE URANIUM DEPOSIT AT KVANEFJELD, THE ILIMAUSSAQ INTRUSION, SOUTH GREENLAND Flemming

432

External Surveillance of Geothermal Scale Deposits Employing Iridium-192  

Open Energy Info (EERE)

External Surveillance of Geothermal Scale Deposits Employing Iridium-192 External Surveillance of Geothermal Scale Deposits Employing Iridium-192 Radiography Jump to: navigation, search OpenEI Reference LibraryAdd to library Journal Article: External Surveillance of Geothermal Scale Deposits Employing Iridium-192 Radiography Abstract Iridium-192 radiography has been successfully tested as a technique for externally monitoring geothermal scale deposits in piping at the Brawley, CA geothermal field. This technique is applied to piping that handles flowing brine to provide in situ scale deposition observations without the disadvantage of dismantling piping for visual scale inspection. Exposure times and film orientations have been optimized to yield excellent agreement between radiographically detected scale thicknesses and actual

433

Nitrogen Deposition onto the United States and Western Europe  

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

ORNL DAAC Data Set Change Information ORNL DAAC Data Set Change Information Data Set: Nitrogen Deposition onto the United States and Western Europe Effective Date of Revision: May 2, 2005 Data Set Citation: Holland, E. A., B. H. Braswell, J. M. Sulzman, and J. -F. Lamarque. 2005. Nitrogen Deposition onto the United States and Western Europe. Data set. Available on-line [http://www.daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. Revision Summary: The investigator advised us that data in two of the deposition files were a factor of 100 too large and the order of the records was reversed from the description in the documentation. NADP_wet_deposition_no3_0.5x0.5_grid_annual.txt NADP_wet_deposition_nh4_0.5x0.5_grid_annual.txt Data File Changes:

434

Method of and apparatus for determining deposition-point temperature  

DOE Patents (OSTI)

Acoustic-wave sensor apparatus and method for analyzing a normally liquid petroleum-based composition for monitoring deposition-point temperature. The apparatus includes at least one acoustic-wave device such as SAW, QCM, FPM, TSM or APM type devices in contact with the petroleum-based composition for sensing or detecting the surface temperature at which deposition occurs and/or rate of deposition as a function of temperature by sensing an accompanying change in frequency, phase shift, damping voltage or damping current of an electrical oscillator to a known calibrated condition. The acoustic wave device is actively cooled to monitor the deposition of constituents such as paraffins by determining the point at which solids from the liquid composition begin to form on the acoustic wave device. The acoustic wave device can be heated to melt or boil off the deposits to reset the monitor and the process can be repeated.

Mansure, Arthur J. (Albuquerque, NM); Spates, James J. (Albuquerque, NM); Martin, Stephen J. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

435

Method of and apparatus for determining deposition-point temperature  

DOE Patents (OSTI)

Acoustic-wave sensor apparatus and method are disclosed for analyzing a normally liquid petroleum-based composition for monitoring deposition-point temperature. The apparatus includes at least one acoustic-wave device such as SAW, QCM, FPM, TSM or APM type devices in contact with the petroleum-based composition for sensing or detecting the surface temperature at which deposition occurs and/or rate of deposition as a function of temperature by sensing an accompanying change in frequency, phase shift, damping voltage or damping current of an electrical oscillator to a known calibrated condition. The acoustic wave device is actively cooled to monitor the deposition of constituents such as paraffins by determining the point at which solids from the liquid composition begin to form on the acoustic wave device. The acoustic wave device can be heated to melt or boil off the deposits to reset the monitor and the process can be repeated. 5 figs.

Mansure, A.J.; Spates, J.J.; Martin, S.J.

1998-10-27T23:59:59.000Z

436

Chemical vapor deposition of boron-doped hydrogenated amorphous silicon  

SciTech Connect

Deposition conditions and film properties for a variety of boron-doped hydrogenated amorphous silicon films and silicon-carbon films produced by chemical vapor deposition (CVD) are discussed. Deposition gases include monosilane, disilane, trisilane, and acetylene. Two types of optically wide band-gap p layers are obtained. One of these window p layers (without carbon) has been extensively tested in photovoltaic devices. Remarkably, this p layer can be deposited between about 200 to 300 /sup 0/C. A typical open circuit voltage in an all CVD p-i-n device is 0.70--0.72 V, and in a hybrid device where the i and n layers are deposited by glow discharge, 0.8--0.83 V.

Ellis F.B. Jr.; Delahoy, A.E.

1985-07-15T23:59:59.000Z

437

A macroscopic model for focused?ion?beam?induced deposition  

Science Journals Connector (OSTI)

A time?dependent model for focused?ion?beam?induced deposition is presented which explicitly takes the scanning strategy of the beam during deposition into account. The model differentiates between the contribution of the beam center and that of the beam wings and contains all major experimental variables such as current density focus size scan speed and frame time. The deposition rate has been measured for tungsten as a function of the major experimental variables. The model has been fitted to these data and is found to describe the various dependences very well. By use of the model inclusive of the parameters obtained from the fit we can predict optimum deposition conditions. Furthermore the model clarifies effects observed during deposition on the structuredsurface of an integrated circuit such as redeposition of sputtered material and poor step coverage due to an impeded gas flow.

M. H. F. Overwijk; F. C. van den Heuvel

1993-01-01T23:59:59.000Z

438

Studies of wax deposition in the Trans Alaska pipeline  

SciTech Connect

The crude oil being pumped into the Trans Alaska pipeline experiences considerable cooling during its 800-mile (1,287 km) journey from Prudhoe Bay to Valdez. The conditions during the initial flow period were favorable especially for the deposition of the waxy constituents of the crude on the pipeline wall. As time passed and the crude oil flow rate increased, segments of the pipeline warmed up to temperatures greater than that at which wax deposition occurs. This study investigated mechanisms of wax deposition and determined the expected nature and thickness of deposits in the pipeline as a function of time and distance. Results indicate that deposition during start-up is a consequence of 3 separate mechanisms which transport both dissolved and precipitated waxy residue laterally. 31 references.

Burger, E.D.; Perkins, T.K.; Striegler, J.H.

1980-03-01T23:59:59.000Z

439

Influences of deposition and crystallization kinetics on the properties of silicon films deposited by low-pressure chemical vapour deposition from silane and disilane  

Science Journals Connector (OSTI)

The paper deals with the properties of silicon films obtained by low-pressure chemical vapour deposition (LPCVD). Two gaseous sources characterized by different deposition temperatures, i.e. disilane Si2H6 (420–520 °C) and silane SiH4 (520–750 °C), was studied in order to understand the influences of deposition and crystallization kinetics on silicon film properties. Thus, the deposition of amorphous, semi-crystallized and polycrystalline silicon films was related to “volume random” and “surface columnar” crystallization phenomena, highlighting a linear relationship between the refractive index and the polysilicon volume fraction and, showing complex residual stress dependency with process conditions. Finally, by introducing the ratio Vd/Vc between the deposition and crystallization rates as a major parameter, different deposition behaviours and related semi-empirical relationships were defined in order to characterize fully the various properties of LPCVD silicon films (microstructure, polysilicon volume fraction, refractive index and residual stress) according to the chosen gaseous source, silane or disilane.

Pierre Temple-Boyer; B. Rousset; E. Scheid

2010-01-01T23:59:59.000Z

440

Alluvial-fan deposits of Eldorado and Piute Valleys Alluvial-fan deposits are mapped as allostratigraphic units  

E-Print Network (OSTI)

that may be subject to intermittent flooding from active channels. Young alluvial-fan depositsMFan-piedmont and interfluvial wash terrace remnants; pebble-cobble to boulder gravel; small pebble sand where dominated by grus-cobble to boulder gravel. Deposits are poorly sorted; generally matrix supported; poorly to moderately stratified

Tingley, Joseph V.

Note: This page contains sample records for the topic "deposits estimated rare" 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

Estimated Cost Description Determination Date:  

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

and posted 2/10/2011 and posted 2/10/2011 *Title, Location Estimated Cost Description Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain $50,000 FONSI: uncertain Determination Date: uncertain Transmittal to State: uncertain EA Approval: uncertain FONSI: uncertain Total Estimated Cost $70,000 Attachment: Memo, Moody to Marcinowski, III, SUBJECT: NEPA 2011 APS for DOE-SRS, Dated: Annual NEPA Planning Summary Environmental Assessments (EAs) Expected to be Initiated in the Next 12 Months Department of Energy (DOE) Savannah River Site (SRS) Jan-11 Estimated Schedule (**NEPA Milestones) South Carolina Department of Health and Environmental Control (SCDHEC) issued a National Pollutant Discharge Elimination System (NPDES) Industrial Stormwater General Permit (IGP) # SCR000000 November 12, with an effective date of January

442

2 - Products Using Vacuum Deposited Coatings  

Science Journals Connector (OSTI)

Publisher Summary Most of the vacuum coating done is thin metal coating for packaging applications covering many aspects of packaging. The metal coatings can be bright and highly reflective providing more advertising impact than metallic inks, which are duller. The metalized polymer webs can be used directly by heat sealing, laminated to other webs, or have the metallic layer transferred onto other surfaces by a stamping process. These and other variations make the aluminized film very versatile as a packaging material. The more important feature of the metal coating is that it provides a barrier performance against oxygen, water, and light. The barrier performance of the metal thin film depends on the thickness of the coating and the cleanliness of the coating. The use of lacquers or transparent colored inks enables metalized papers to be overprinted and used to make more reflective printed products than can be achieved by metallic inks. Many of these applications of metalized paper are purely esthetic. Holograms are bright, usually reflective, patterns or images that are used as decorative packaging and/or as security devices. Where holograms are used for packaging, they can be in the form of a small area integrated into the pack design or as a patterned background to the whole pack. This chapter provides examples of a large variety of products that make use of vacuum deposited coatings onto flexible substrates. Some of these may not be obvious to the users. The products range from flexible packaging, capacitors, pyrotechnics, flake fillers for paints and inks, holographic devices, transparent conducting coatings, thin film batteries, electronic circuits through to the current high market growth products such as displays, photovoltaics (solar cells), and high barrier coatings.

Charles A. Bishop

2011-01-01T23:59:59.000Z

443

Estimate sequence methods: extensions and approximations  

E-Print Network (OSTI)

Aug 11, 2009 ... Estimate sequence methods: extensions and approximations ... or both, and draw some guidelines on the design of further estimate sequence ...

Michel Baes

2009-08-11T23:59:59.000Z

444

BPA Metering Services Editing and Estimating Procedures  

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

Editing and Estimating Interval Data 1. Introduction This section defines the meter interval data editing and estimation techniques performed by BPA's Metering Services...

445

ORISE: Radiation Dose Estimates and Other Compendia  

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

downloaded free from the Adobe website. Early Internal and External Dose Magnitude Estimation (PDF) This article addresses methods that can be used to rapidly estimate internal...

446

Mississippi Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Mississippi Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

447

California Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) California Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2 Year-3...

448

Pennsylvania Crude Oil + Lease Condensate Estimated Production...  

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

Estimated Production from Reserves (Million Barrels) Pennsylvania Crude Oil + Lease Condensate Estimated Production from Reserves (Million Barrels) Decade Year-0 Year-1 Year-2...

449

Estimating Waste Inventory and Waste Tank Characterization |...  

Office of Environmental Management (EM)

Estimating Waste Inventory and Waste Tank Characterization Estimating Waste Inventory and Waste Tank Characterization Summary Notes from 28 May 2008 Generic Technical Issue...

450

GAO Cost Estimating and Assessment Guide Twelve Steps of a High-Quality Cost Estimating Process  

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

GAO Cost Estimating and Assessment Guide GAO Cost Estimating and Assessment Guide Twelve Steps of a High-Quality Cost Estimating Process Step Description Associated task 1 Define estimate's purpose Determine estimate's purpose, required level of detail, and overall scope; Determine who will receive the estimate 2 Develop estimating plan Determine the cost estimating team and develop its master schedule; Determine who will do the independent cost estimate; Outline the cost estimating approach; Develop the estimate timeline 3 Define program characteristics In a technical baseline description document, identify the program's

451

10 Questions for a Materials Scientist: Mr. Rare Earth -- Dr. Karl A.  

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

Materials Scientist: Mr. Rare Earth -- Dr. Karl Materials Scientist: Mr. Rare Earth -- Dr. Karl A. Gschneidner, Jr. 10 Questions for a Materials Scientist: Mr. Rare Earth -- Dr. Karl A. Gschneidner, Jr. April 3, 2013 - 12:59pm Addthis Dr. Karl Gschneidner is holding a neodymium-iron-boron magnet produced using a new, greener process. The process that Dr. Gschneidner helped develop doesn’t produce the environmentally unfriendly byproducts that result from traditional manufacturing methods. | Photo courtesy of Ames Laboratory. Dr. Karl Gschneidner is holding a neodymium-iron-boron magnet produced using a new, greener process. The process that Dr. Gschneidner helped develop doesn't produce the environmentally unfriendly byproducts that result from traditional manufacturing methods. | Photo courtesy of Ames

452

Ames Laboratory to Lead New Research Effort to Address Shortages in Rare  

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

Laboratory to Lead New Research Effort to Address Shortages in Laboratory to Lead New Research Effort to Address Shortages in Rare Earth and Other Critical Materials Ames Laboratory to Lead New Research Effort to Address Shortages in Rare Earth and Other Critical Materials January 9, 2013 - 12:13pm Addthis NEWS MEDIA CONTACT (202) 586-4940 WASHINGTON - The U.S. Department of Energy announced today that a team led by Ames Laboratory in Ames, Iowa, has been selected for an award of up to $120 million over five years to establish an Energy Innovation Hub that will develop solutions to the domestic shortages of rare earth metals and other materials critical for U.S. energy security. The new research center, which will be named the Critical Materials Institute (CMI), will bring together leading researchers from academia, four Department of Energy

453

High Pressure Phase Transformations in Heavy Rare Earth Metals and Connections to Actinide Crystal Structures  

SciTech Connect

High-pressure studies have been performed on heavy rare earth metals Terbium (Tb) to 155 GPa and Holmium (Ho) to 134 GPa in a diamond anvil cell at room temperature. The following crystal structure sequence was observed in both metals hcp {yields} Sm-type {yields} dhcp {yields} distorted fcc (hR-24) {yields} monoclinic (C2/m) with increasing pressure. The last transformation to a low symmetry monoclinic phase is accompanied by a volume collapse of 5 % for Tb at 51 GPa and a volume collapse of 3 % for Ho at 103 GPa. This volume collapse under high pressure is reminiscent of f-shell delocalization in light rare earth metal Cerium (Ce), Praseodymium (Pr), and heavy actinide metals Americium (Am) and Curium (Cm). The orthorhombic Pnma phase that has been reported in Am and Cm after f-shell delocalization is not observed in heavy rare earth metals under high pressures. (authors)

Vohra, Yogesh K.; Sangala, Bagvanth Reddy; Stemshorn, Andrew K. [Physics, University of Alabama at Birmingham (UAB), 310 Campbell Hall, 1300 University Boulevard, Birmingham, AL, 35294-1170 (United States); Hope, Kevin M. [Biology, Chemistry, and Mathematics, University of Montevallo, Harman Hall, Station 6480, Montevallo, AL, 35115 (United States)

2008-07-01T23:59:59.000Z

454

The effect of rare earth elements on the texture and formability of asymmetrically rolled magnesium sheet  

SciTech Connect

The lack of formability is a serious issue when considering magnesium alloys for various applications. Standard symmetric rolling introduces a strong basal texture that decreases the formability; however, asymmetric rolling has been put forward as a possible route to produce sheet with weaker texture and greater ductility. It has also been shown in recent work that weaker textures can be produced through the addition of rare earth elements to magnesium alloys. Therefore, this study has been carried out to investigate the effect of rare earth additions on the texture changes during asymmetric rolling. Two alloys have been used, AZ31B and ZEK100. The effect that the rare earth additions have on the texture of asymmetrically rolled sheet and the subsequent changes in formability will be discussed.

Alderman, Dr. Martyn [Magnesium Elektron North America; Cavin, Odis Burl [ORNL; Davis, Dr. Bruce [Magnesium Elektron North America; Muralidharan, Govindarajan [ORNL; Muth, Thomas R [ORNL; Peter, William H [ORNL; Randman, David [Magnesium Elektron North America; Watkins, Thomas R [ORNL

2011-01-01T23:59:59.000Z

455

Method of forming magnetostrictive rods from rare earth-iron alloys  

DOE Patents (OSTI)

Rods of magnetostrictive alloys of iron with rare earth elements are formed by flowing a body of rare earth-iron alloy in a crucible enclosed in a chamber maintained under an inert gas atmosphere, forcing such molten rare-earth-iron alloy into a hollow mold tube of refractory material positioned with its lower end portion within the molten body by means of a pressure differential between the chamber and mold tube and maintaining a portion of the molten alloy in the crucible extending to a level above the lower end of the mold tube so that solid particles of higher melting impurities present in the alloy collect at the surface of the molten body and remain within the crucible as the rod is formed in the mold tube. 5 figs.

McMasters, O.D.

1986-09-02T23:59:59.000Z

456

Reduced order prediction of rare events in unidirectional nonlinear water waves  

E-Print Network (OSTI)

We consider the problem of short-term prediction of rare, extreme water waves in unidirectional fields, a critical topic for ocean structures and naval operations. One possible mechanism for the occurrence of such rare, unusually-intense waves is nonlinear wave focusing. Recent results have demonstrated that random localizations of energy, induced by the dispersive mixing of different harmonics, can grow significantly due to localized nonlinear focusing. Here we show how the interplay between i) statistical properties captured through linear information such as the waves power spectrum and ii) nonlinear dynamical properties of focusing localized wave groups defines a critical length scale associated with the formation of extreme events. The energy that is locally concentrated over this length scale acts as the "trigger" of nonlinear focusing for wave groups and the formation of subsequent rare events. We use this property to develop inexpensive, short-term predictors of large water waves. Specifically, we sho...

Cousins, Will

2015-01-01T23:59:59.000Z

457

Method for depositing high-quality microcrystalline semiconductor materials  

DOE Patents (OSTI)

A process for the plasma deposition of a layer of a microcrystalline semiconductor material is carried out by energizing a process gas which includes a precursor of the semiconductor material and a diluent with electromagnetic energy so as to create a plasma therefrom. The plasma deposits a layer of the microcrystalline semiconductor material onto the substrate. The concentration of the diluent in the process gas is varied as a function of the thickness of the layer of microcrystalline semiconductor material which has been deposited. Also disclosed is the use of the process for the preparation of an N-I-P type photovoltaic device.

Guha, Subhendu (Bloomfield Hills, MI); Yang, Chi C. (Troy, MI); Yan, Baojie (Rochester Hills, MI)

2011-03-08T23:59:59.000Z

458

Nopal I uranium deposit: A study of radionuclide migration  

SciTech Connect

This summary reports on activities of naturally-occurring radionuclides for the Nopal I uranium deposit located in the Pena Blanca Uranium District, Chihuahua, Mexico. Activities were determined using gamma-ray spectroscopy. In addition, data reduction procedures and sample preparation (for Rn retention) will be discussed here. Nopal I uranium deposit has been identified as one of the most promising sites for analogue studies to the proposed high-level nuclear waste repository at Yucca Mountain, Nevada. The objective of this research is to study the potential for radionuclide migration by testing whether any portion of the deposit is in secular equilibrium.

Wong, V.; Anthony, E.; Goodell, P. [Univ. of Texas, El Paso, TX (United States)

1996-12-01T23:59:59.000Z

459

Initiated chemical vapor deposition of polymeric thin films : mechanism and applications  

E-Print Network (OSTI)

Initiated chemical vapor deposition (iCVD) is a novel technique for depositing polymeric thin films. It is able to deposit thin films of application-specific polymers in one step without using any solvents. Its uniqueness ...

Chan, Kelvin, Ph. D. Massachusetts Institute of Technology

2005-01-01T23:59:59.000Z

460

STRUCTURAL CONTROL AND ANISOTROPY OF MINERALIZATION THE CHUQUICAMATA PORPHYRY COPPER DEPOSIT,  

E-Print Network (OSTI)

STRUCTURAL CONTROL AND ANISOTROPY OF MINERALIZATION WITHIN THE CHUQUICAMATA PORPHYRY COPPER DEPOSIT CONTROL AND ANISOTROPY OF MINERALIZATION WITHIN THE CHUQUICAMATA PORPHYRY COPPER DEPOSIT, NORTHERN CHILE the Chuquicamata Porphyry Copper Deposit, northern Chile DEPARTMENT OR SCHOOL: Department of Earth Sciences DEGREE

Beaumont, Christopher

Note: This page contains sample records for the topic "deposits estimated rare" 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

Cost Estimates for New Molecules  

Science Journals Connector (OSTI)

Cost Estimates for New Molecules ... Once this has been carried out, the projected cost/kilogram for the new drug substance (if only raw material costs and no manufacturing/overhead/labour costs are considered) may well come down by a factor of 10 or even 100, and this is often more acceptable to management trying to make strategic decisions about potential profitability. ...

Trevor Laird

2005-02-22T23:59:59.000Z

462

Characterization Of State Estimation Biases  

Science Journals Connector (OSTI)

The control and operation of an electric power system is based on the ability to determine the state of the system in real time. State estimation (SE) has been introduced in the 1960s to achieve this objective. The initial implementation was based on ...

A. P. Sakis Meliopoulos; George K. Stefopoulos

2006-01-01T23:59:59.000Z

463

Trades Estimate Guide September, 2013  

E-Print Network (OSTI)

labor hours are provided using "industry standard" hours. Each trade has an hourly recharge rate. Here are a few examples of why our shops estimates may be considered high. HVAC & SHEET METAL · In the HVAC area. This work can include: required engineering and design, new HVAC equipment to accommodate design

Rose, Michael R.

464

ERROR ESTIMATIONS FOR INDIRECT MEASUREMENTS  

E-Print Network (OSTI)

Chapter 1 ERROR ESTIMATIONS FOR INDIRECT MEASUREMENTS: RANDOMIZED VS. DETERMINISTIC ALGORITHMS difficult or even impossible to directly measure the quantity in which we are interested: e.g., we cannot directly measure a distance to a distant galaxy or the amount of oil in a given well. Since we cannot

Kreinovich, Vladik

465

2012 Proved Reserves Estimation Methodology  

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

-366 11,933 Estimated 818 124 759 0 0 19 0 0 236 1,693 1,658 Imputation for nonresponse Unit and item nonresponse on the EIA-23 is imputed for using the same ratio function that is...

466

HYPERPARAMETER ESTIMATION FOR EMISSION COMPUTED  

E-Print Network (OSTI)

HYPERPARAMETER ESTIMATION FOR EMISSION COMPUTED TOMOGRAPHY DATA A. López (a) , R. Molina (b) (a limited due to several factors. These factors include the need of greater computational time than to the projection data to obtain two-dimensional slices or cross sections (images) of activity distribution. #12

Granada, Universidad de

467

Separation of rare gases and chiral molecules by selective binding in porous organic cages  

SciTech Connect

Abstract: The rare gases krypton, xenon, and radon pose both an economic opportunity and a potential environmental hazard. Xenon is used in commercial lighting, medical imaging, and anesthesia, and can sell for $5,000 per kilogram. Radon, by contrast, Is naturally radioactive and the second largest cause of lung cancer, and radioactive xenon, 133Xe, was a major pollutant released In the Fukushima Daiichi Nuclear Power Plant disaster. We describe an organic cage molecule that can capture xenon and radon with unprecedented selectivity, suggesting new technologies for environmental monitoring, removal of pollutants, or the recovery of rare, valuable elements from air.

Chen, Linjiang; Reiss, Paul S.; Chong, Samantha Y.; Holden, Daniel; Jelfs, Kim E.; Hasell, Tom; Little, Marc A.; Kewley, Adam; Briggs, Michael E.; Stephenson, Andrew; Thomas, K. M.; Armstrong, Jayne A.; Bell, Jon; Busto, Jose; Noel, Raymond; Liu, Jian; Strachan, Denis M.; Thallapally, Praveen K.; Cooper, Andrew I.

2014-10-31T23:59:59.000Z

468

Screening-level approach for estimating contaminant export from tributaries  

SciTech Connect

The in-place pollutant export model (IPX) is a screening-level model for estimating contaminant export from tributaries with contaminated sediments to receiving waterbodies. IPX is a modified version of the USEPA`s WASP4 modeling framework. IPX synthesizes sediment transport processes for sediment aging, decreased sediment resuspendability with increasing age, and resuspension of freshly deposited sediments as a function of water velocity, into an expanded WASP4 contaminant transport and fate chassis while retaining the computational flexibility of the original framework. These process descriptions are needed to accurately simulate contaminant transport and substantially improve the framework for application to tributary systems subject to significant deposition and resuspension events. The potential for applying IPX is broad; water quality impairments attributable to contaminated sediments are widespread due to discharges from industry, agriculture, and mining and ore processing. IPX has been successfully applied to the upper and lower Fox River in Wisconsin, and the Buffalo and Oswego Rivers in New York, all impaired by contaminated sediments.

Velleux, M. [Wisconsin Dept. of Natural Resources, Madison, WI (United States); Gailani, J. [Army Corps of Engineers, Vicksburg, MS (United States); Endicott, D. [EPA Large Lakes Research Station, Grosse Ile, MI (United States)

1996-06-01T23:59:59.000Z

469

Blower upkeep, energy savings estimated at $20,000/yr  

SciTech Connect

Vinyl chloride gas must be removed from operating vessels in a polymerization process at Occidental Chemical, Addis, LA. If left intact, the gases can polymerize and form deposits. Considered for this function were reciprocating and liquid ring type compressors. They were rejected, however, because of anticipated high valve maintenance and energy consumption. Since high reliability and leak-free performance are essential, two double-mechanical-sealed, positive displacement blowers were installed with water injection in 1980. The blowers are designed for those special applications where gas leak tightness is required or where continuous, high-pressure or vacuum, single-stage or two-stage is needed. The lobe-type blowers were selected by Occidental because they were considered to be best suited for the low-pressure differential operation. All internal surfaces are specially cleaned to reduce contamination and may be operated with non-hydrocarbon lubricants. A back-up seal on the drive shaft provides protection against leakage of process gas to the atmosphere. Maintenance and energy savings are estimated at $20,000/yr. The blowers were used with the water injection technique because previous experience vinyl chloride monomer indicated that there were major deposits inside the compressors and ring units. The blowers have provided contaminant-free (oil-free) monomer, and the water injection has prevented the polymerization material from sticking to the surfaces of the blowers. This has ensured practically trouble-free operation, and has greatly reduced maintenance and operation downtime, significantly reducing cost.

Diehl, R.; Powers, J.

1987-05-01T23:59:59.000Z

470

E-Print Network 3.0 - adjusted deposit insurance Sample Search...  

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

such as checking, savings, trust and money market deposit accounts, as well... as certificates of deposit (CDs) and IRAs. Bank accounts generally are insured by the FDIC up...

471

E-Print Network 3.0 - acid-mediated callose deposition Sample...  

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

-associated molecular patterns (flg22 and elf18), including callose deposition, lignin deposition, pigment accumulation... ., 1998; Soylu et al., 2005). Some bacterial and...

472

E-Print Network 3.0 - analysis atmospheric deposition Sample...  

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

3 Chapter 2: Sources and Deposition of Trace Metals 2.1 Main Sources of Atmospheric Pollution...7 Summary: and dry deposition analysis...

473

E-Print Network 3.0 - atomic vapor deposited Sample Search Results  

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

Articles Surfactant-Catalyzed Chemical Vapor Deposition of Copper Thin Films Eui Seong Hwang... and demonstrated for deposition of copper thin films from ... Source:...

474

On-line inspection and thermal properties comparison for laser deposition process .  

E-Print Network (OSTI)

??"This thesis is focused on comparing the laser deposition cladding with intended design model and comparing the effect of laser deposition process on thermal properties… (more)

Yang, Yu, 1973-

2007-01-01T23:59:59.000Z

475

The Time of Sands: Quartz-rich Sand Deposits as a Renewable Resource  

E-Print Network (OSTI)

sand production is from unconsolidated units, but the St.and Midwestern U.S. , unconsolidated sand deposits aresand is produced from unconsolidated deposits or hard,

Shaffer, Nelson R.

2006-01-01T23:59:59.000Z

476

Characterisation of a Pleistocene debris-avalanche deposit in the Tenteniguada Basin, Gran Canaria Island, Spain  

Science Journals Connector (OSTI)

We studied a large debris-avalanche deposit of Pleistocene age in the Tenteniguada Basin, Gran Canaria Island, Spain. This deposit, which is...

Alejandro Lomoschitz; Javier Hervás; Jorge Yepes; Joaquín Meco

2008-05-01T23:59:59.000Z

477

Analysis Of Hot Springs And Associated Deposits In Yellowstone National  

Open Energy Info (EERE)

Hot Springs And Associated Deposits In Yellowstone National Hot Springs And Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Analysis Of Hot Springs And Associated Deposits In Yellowstone National Park Using Aster And Aviris Remote Sensing Details Activities (6) Areas (1) Regions (0) Abstract: The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and the Airborne Visible/IR Image Spectrometer (AVIRIS) data were used to characterize hot spring deposits in the Lower, Midway, and Upper Geyser Basins of Yellowstone National Park from the visible/near infrared (VNIR) to thermal infrared (TIR) wavelengths. Field observations of these basins provided the critical ground-truth for comparison with the

478

Y-12 Site Experience with Deposition Velocity Issues  

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

Site Experience with Site Experience with Deposition Velocity Issues Douglas Clark Analyst B&W Technical Services Y-12 May 9, 2012 Y-12 Site Experience with Deposition Velocity Issues Y-12 Specific Issues Y-12 Site Experience with Deposition Velocity Issues Windspeed - Calm Wind Conditions at Y-12 Site Y-12 Site Experience with Deposition Velocity Issues Windspeed - Stability Class Determinations * NRC RG 1.23 ΔT-only method * EPA-454/R-99-005 solar- radiation-delta-temperature (SRDT) method * Hybrid SR - DT method * wind direction standard deviation [sigma-theta (σ θ )] * elevation angle standard deviation [sigma-phi (σ φ )] * vertical wind speed standard deviation [sigma-omega (σ ω )], * wind-speed ratio method (u R ) * All evaluated using data from west

479

Remote Detection Of Quaternary Borate Deposits With Aster Satellite Imagery  

Open Energy Info (EERE)

Of Quaternary Borate Deposits With Aster Satellite Imagery Of Quaternary Borate Deposits With Aster Satellite Imagery As A Geothermal Exploration Tool Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Remote Detection Of Quaternary Borate Deposits With Aster Satellite Imagery As A Geothermal Exploration Tool Details Activities (2) Areas (2) Regions (0) Abstract: Unavailable Author(s): C. Kratt, M. Coolbaugh, Wendy Calvin Published: GRC, 2006 Document Number: Unavailable DOI: Unavailable Multispectral Imaging At Rhodes Marsh Area (Kratt, Et Al., 2006) Multispectral Imaging At Teels Marsh Area (Kratt, Et Al., 2006) Rhodes Marsh Geothermal Area Teels Marsh Geothermal Area Retrieved from "http://en.openei.org/w/index.php?title=Remote_Detection_Of_Quaternary_Borate_Deposits_With_Aster_Satellite_Imagery_As_A_Geothermal_Exploration_Tool&oldid=389959

480

Geology and Mineral Deposits of Churchill County, Nevada | Open Energy  

Open Energy Info (EERE)

Geology and Mineral Deposits of Churchill County, Nevada Geology and Mineral Deposits of Churchill County, Nevada Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Geology and Mineral Deposits of Churchill County, Nevada Abstract Churchill County, in west-central Nevada, is an area of varied topography and geology that has had a rather small total mineral production. The western part of the county is dominated by the broad low valley of the Carson Sink, which is underlain by deposits of Lake Lahontan. The bordering mountain ranges to the west and south are of low relief and underlain largely by Tertiary volcanic and sedimentary units. Pre-Tertiary rocks are extensively exposed east of the Carson Sink in the Stillwater Range, Clan Alpine Mountains, Augusta Mountains, and New Pass Mountains. The eastern

Note: This page contains sample records for the topic "deposits estimated rare" 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

Geology of the Florida Canyon gold deposit, Pershing County,...  

Open Energy Info (EERE)

Nevada, in: Gold and Silver Deposits of Western Nevada Authors Hastings, J.S., Burkhart, T.H., and Richardson and R.E. Published Geological Society of Nevada 1993 fall field trip...

482

Laser-Based Deposition Technique: Patterning Nanoparticles into Microstructures  

E-Print Network (OSTI)

Laser-Based Deposition Technique: Patterning Nanoparticles into Microstructures Edward M. Nadgorny Jaroslaw Drelich Michigan Technological University, Houghton, Michigan, U.S.A. INTRODUCTION The laser- tions of unlike materials, and unconventional substrates. The technique makes use of laser

Drelich, Jaroslaw W.

483

Modeling of Particle Deposition in Cleanroom Environments: Current Status  

Science Journals Connector (OSTI)

Recently many models have been presented to describe particle deposition in cleanroom environments. The models can be classified according to the scale of flow — cleanroom scale, equipment scale, or product scale...

Jay R. Turner

1990-01-01T23:59:59.000Z

484

Atmospheric Mercury Deposition during the Last 270 Years: A  

E-Print Network (OSTI)

Atmospheric Mercury Deposition during the Last 270 Years: A Glacial Ice Core Record of Natural, and U.S. Geological Survey, Wisconsin District Mercury Research Laboratory, Middleton, Wisconsin 53562 Mercury (Hg) contamination of aquatic ecosystems and subsequent methylmercury bioaccumulation

485

Glow discharge deposition at high rates using disilane  

SciTech Connect

The research program reported makes use of the fact that amorphous silicon films can be grown faster from disilane in a glow discharge than from the traditional silane. The goal is to find a method to grow films at a high rate and with sufficiently high quality to be used in an efficient solar cell. It must also be demonstrated that the appropriate device structure can be successfully fabricated under conditions which give high deposition rates. High quality intrinsic films have been deposited at 20 A/s. Efficiency of 5.6% on steel substrates and 5.3% on glass substrates were achieved using disilane i-layers deposited at 15 A/s in a basic structure, without wide-gap doped layers or light trapping. Wide gap p-layers were deposited using disilane. Results were compared with those obtained at Vactronic using high power discharges of silane-hydrogen mixtures. (LEW)

Rajeswaran, G.; Corderman, R.R.; Kampas, F.J.; Vanier, P.E.

1985-01-01T23:59:59.000Z

486

Quantifying channelized submarine depositional systems from bed to basin scale  

E-Print Network (OSTI)

The challenges of directly observing active turbidity currents necessitates the consideration of preserved deposits for deciphering the behavior of these systems. In this thesis, I take advantage 3-D subsurface seismic ...

Lyons, William J., 1965-

2004-01-01T23:59:59.000Z

487

Precipitation scavenging, dry deposition, and resuspension. Volume 2. Proceedings  

SciTech Connect

Volume 2 of these proceedings contains papers on dry deposition and resuspension of airborne pollutants. Items within the scope of EDB have been entered separately into the data base. (ACR)

Pruppacher, H.R.; Semonin, R.G.; Slinn, W.G.N.

1983-01-01T23:59:59.000Z

488

Initiated chemical vapor deposition of functional polyacrylic thin films  

E-Print Network (OSTI)

Initiated chemical vapor deposition (iCVD) was explored as a novel method for synthesis of functional polyacrylic thin films. The process introduces a peroxide initiator, which can be decomposed at low temperatures (<200?C) ...

Mao, Yu, 1975-

2005-01-01T23:59:59.000Z

489

Electrostatic particle trap for ion beam sputter deposition  

DOE Patents (OSTI)

A method and apparatus for the interception and trapping of or reflection of charged particulate matter generated in ion beam sputter deposition. The apparatus involves an electrostatic particle trap which generates electrostatic fields in the vicinity of the substrate on which target material is being deposited. The electrostatic particle trap consists of an array of electrode surfaces, each maintained at an electrostatic potential, and with their surfaces parallel or perpendicular to the surface of the substrate. The method involves interception and trapping of or reflection of charged particles achieved by generating electrostatic fields in the vicinity of the substrate, and configuring the fields to force the charged particulate material away from the substrate. The electrostatic charged particle trap enables prevention of charged particles from being deposited on the substrate thereby enabling the deposition of extremely low defect density films, such as required for reflective masks of an extreme ultraviolet lithography (EUVL) system.

Vernon, Stephen P. (Pleasanton, CA); Burkhart, Scott C. (Livermore, CA)

2002-01-01T23:59:59.000Z

490

Critical loads of acid deposition on Scottish soils  

Science Journals Connector (OSTI)

The impact of acid deposition, attributable to sulphur and nitrogen pollutants, on the soils of Scotland has been analysed using a critical loads approach. The critical load of a soil (as an indicator of ecolo...

Simon J. Langan; M. J. Wilson

1994-05-01T23:59:59.000Z

491

Wet and Dry Pollutant Deposition to the Mixed Conifer Forest  

Science Journals Connector (OSTI)

The Mediterranean climate in southern California regulates wet and dry deposition characteristics in the San Bernardino Mountains (SBM). Long dry periods in combination with the large air pollution emissions f...

A. Bytnerowicz; M. E. Fenn; P. R. Miller…

1999-01-01T23:59:59.000Z

492

Asphaltene Deposition in Carbonate Rocks: Experimental Investigation and Numerical Simulation  

Science Journals Connector (OSTI)

Asphaltene Deposition in Carbonate Rocks: Experimental Investigation and Numerical Simulation ... Interfacial tension (IFT) as one of the main properties for efficient CO2 flooding planning in oil reservoirs depends strongly on pressure, temperature, and composition of the reservoir fluids. ...

Shahin Kord; Rohaldin Miri; Shahab Ayatollahi; Mehdi Escrochi

2012-06-20T23:59:59.000Z

493

Fabrication of solid oxide fuel cell by electrochemical vapor deposition  

DOE Patents (OSTI)

In a high temperature solid oxide fuel cell (SOFC), the deposition of an impervious high density thin layer of electrically conductive interconnector material, such as magnesium doped lanthanum chromite, and of an electrolyte material, such as yttria stabilized zirconia, onto a porous support/air electrode substrate surface is carried out at high temperatures (approximately 1100.degree.-1300.degree. C.) by a process of electrochemical vapor deposition. In this process, the mixed chlorides of the specific metals involved react in the gaseous state with water vapor resulting in the deposit of an impervious thin oxide layer on the support tube/air electrode substrate of between 20-50 microns in thickness. An internal heater, such as a heat pipe, is placed within the support tube/air electrode substrate and induces a uniform temperature profile therein so as to afford precise and uniform oxide deposition kinetics in an arrangement which is particularly adapted for large scale, commercial fabrication of SOFCs.

Brian, Riley (Willimantic, CT); Szreders, Bernard E. (Oakdale, CT)

1989-01-01T23:59:59.000Z

494

Mass-Selected Ion Deposition System - Electrospray Source | EMSL  

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

molecules originating in the ion source from impacting the surface, an ultrahigh vacuum (UHV) chamber for ion deposition by soft landing, and a vacuum-lock system for introducing...

495

Growth, microstructure and electrical properties of sputter-deposited...  

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

Growth, microstructure and electrical properties of sputter-deposited hafnium oxide (HfO2) thin films grown using HfO2 ceramic Growth, microstructure and electrical properties of...

496

Chapter 8: Modelling Sediment Records of Atmospherically Deposited Contaminants  

E-Print Network (OSTI)

73 Chapter 8: Modelling Sediment Records of Atmospherically Deposited Contaminants 8.1. Catchment the Water Column...............................................79 8.3 Water Column to Bottom Sediment Transfer......................................80 #12;Chapter 8: Modelling Sediment Records... 74 8

Short, Daniel

497

High density Ru nanocrystal deposition for nonvolatile memory applications  

E-Print Network (OSTI)

High density Ru nanocrystal deposition for nonvolatile memory applications Damon B. Farmer School density optimizes the charge storing capability of the floating layer, while a high degree of size

498

Enabling integration of vapor-deposited polymer thin films  

E-Print Network (OSTI)

Initiated Chemical Vapor Deposition (iCVD) is a versatile, one-step process for synthesizing conformal and functional polymer thin films on a variety of substrates. This thesis emphasizes the development of tools to further ...

Petruczok, Christy D. (Christy Danielle)

2014-01-01T23:59:59.000Z

499

Computational Fluid Dynamics Study of Aerosol Transport and Deposition Mechanisms  

E-Print Network (OSTI)

In this work, various aerosol particle transport and deposition mechanisms were studied through the computational fluid dynamics (CFD) modeling, including inertial impaction, gravitational effect, lift force, interception, and turbophoresis, within...

Tang, Yingjie

2012-07-16T23:59:59.000Z

500

Direct Deposit When Message Passing meets Shared Thomas M. Stricker  

E-Print Network (OSTI)

Direct Deposit ­ When Message Passing meets Shared Memory Thomas M. Stricker May 19, 2000 CMU-CS-96 Copyright c by Thomas M. Stricker Supported in part by the Defense Advanced Research Projects Agency