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Note: This page contains sample records for the topic "monazite sand ce" 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

Records of the evolution of the Himalayan orogen from in situ ThPb ion microprobe dating of monazite: Eastern Nepal and western Garhwal  

E-Print Network [OSTI]

of monazite: Eastern Nepal and western Garhwal E.J. Catlosa,*, T.M. Harrisona , C.E. Manningb , M. Groveb , S-Chandra Campus, Tribhuvan University, Kathmandu, Nepal d Department of Geology, Kansas State University In situ Th±Pb monazite ages from rocks collected along two transects (the Dudh Kosi-Everest, eastern Nepal

Harrison, Mark

2

SAND REPORT SAND2002-xxxx  

E-Print Network [OSTI]

SAND REPORT SAND2002-xxxx Unlimited Release August 2002 Discrete Optimization Models for Protein by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

Istrail, Sorin

3

SLOW SAND FILTRATIONSLOW SAND FILTRATION  

E-Print Network [OSTI]

Control valve Effluent flow control structure #12;Characteristic Features of aCharacteristic Features effective size(dSmall effective size(d1010)) and largeand large uniformity coefficient (duniformity coefficient (d6060/d/d1010) of sand) of sand No filter media fluidizationNo filter media fluidization Relative

4

Tar sand  

SciTech Connect (OSTI)

Research on tar sand is briefly discussed. The research program supported by the US Department of Energy (DOE) includes a variety of surface extraction schemes. The University of Utah has process development units (PDU) employing fluidized bed, hot, water-assisted, and fluidized-bed/heat-pipe, coupled combustor technology. Considerable process variable test data have been gathered on these systems: (1) a rotary kiln unit has been built recently; (2) solvent extraction processing is being examined; and (3) an advanced hydrogenation upgrading scheme (hydropyrolysis) has been developed. The University of Arkansas, in collaboration with Diversified Petroleum, Inc., has been working on a fatty acid, solvent extraction process. Oleic acid is the solvent/surfactant. Solvent is recovered by adjusting processing fluid concentrations to separate without expensive operations. Western Research Institute has a PDU-scale scheme called the Recycle Oil Pyrolysis and Extraction (ROPE) process, which combines solvent (hot recycle bitumen) and pyrolytic extraction. 14 refs., 19 figs.

McLendon, T.R.; Bartke, T.C.

1990-01-01T23:59:59.000Z

5

SAND REPORT SAND2001-3515  

E-Print Network [OSTI]

SAND REPORT SAND2001-3515 Unlimited Release Printed April 2002 DAKOTA, A Multilevel Parallel Object by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

Hart, William E.

6

SAND REPORT SAND2001-3796  

E-Print Network [OSTI]

SAND REPORT SAND2001-3796 Unlimited Release Printed April 2002 DAKOTA, A Multilevel Parallel Object by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

Hart, William E.

7

SAND REPORT SAND2004-2871  

E-Print Network [OSTI]

SAND REPORT SAND2004-2871 Unlimited Release August 19, 2004 A Mathematical Framework for Multiscale Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

Bochev, Pavel

8

SAND REPORT SAND2003-0112  

E-Print Network [OSTI]

SAND REPORT SAND2003-0112 Unlimited Release Printed January 2003 Cold War Context Statement Sandia of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

Fuerschbach, Phillip

9

SAND REPORT SAND2003-3410  

E-Print Network [OSTI]

SAND REPORT SAND2003-3410 Unlimited Release Printed September 2003 Chemiresistor Microsensors for In-Situ Monitoring of Volatile Organic Compounds: Final LDRD Report Clifford K. Ho, Lucas K. Mc Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination

Ho, Cliff

10

SAND REPORT SAND2001-3514  

E-Print Network [OSTI]

SAND REPORT SAND2001-3514 Unlimited Release Printed April 2002 DAKOTA, A Multilevel Parallel Object by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

Hart, William E.

11

SAND REPORT SAND2003-2927  

E-Print Network [OSTI]

SAND REPORT SAND2003-2927 Unlimited Release Printed August 2003 An Overview of Trilinos Michael Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

Kolda, Tamara G.

12

SAND REPORT SAND2004-1777  

E-Print Network [OSTI]

SAND REPORT SAND2004-1777 Unlimited Release Printed May 2004 Globalization techniques for Newton by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

Walker, Homer F.

13

SAND REPORT SAND2003-0799  

E-Print Network [OSTI]

SAND REPORT SAND2003-0799 Unlimited Release Printed March 2003 Field Demonstrations Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. #12;2 Issued by Sandia National Laboratories, operated for the United States Department of Energy

Ho, Cliff

14

SAND REPORT SAND2005-7937  

E-Print Network [OSTI]

SAND REPORT SAND2005-7937 Unlimited Release Printed January 2006 Agent-Based Control of Distributed for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. Approved

15

Soil damping constants related to common soil properties in sands and clays  

E-Print Network [OSTI]

for the Granular Materials Tested 83 V ITA 88 Vii LIST OP TABLES Table. Results of Tests on Ottawa Sand Page 22 Result. s of Tests on Arkansas Sand 23 Results of Tests on Victoria Sand 24 VI VII Error Resulting from Approximations Study of Void Ratio... Sand Nohr's Circle Diagram for Victoria Sand 65 82 N0TATION The following symbols are used in this study: CE 35 EA 62 EA 60 EA 55 EA 50 fps a viscous damping constant, Eall pit sandy clay at an approximate moisture content of 35 percent...

Gibson, Gary Clive

1968-01-01T23:59:59.000Z

16

Oil Sands Feedstocks  

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

NCUT National Centre for Upgrading Technology 'a Canada-Alberta alliance for bitumen and heavy oil research' Oil Sands Feedstocks C Fairbridge, Z Ring, Y Briker, D Hager National...

17

Elemental compositions and monazite age patterns of core sediments in the Changjiang Delta: Implications for sediment provenance  

E-Print Network [OSTI]

parameters of rare earth elements (cerium and europium anomalies) and elemental ratios Cr/Th, Nb/Co and Th rights reserved. Keywords: Changjiang; geochemistry; monazite; Tibetan Plateau; Quaternary 1 budget of the global ocean [1­8]. Furthermore, the basin mor- phology and regional fluvial patterns

Yang, Shouye

18

SAND932591 Unlimited Release  

E-Print Network [OSTI]

SAND93­2591 Unlimited Release First Printed October 1992 Revised October 29, 1993 Revised June 22. This new algorithm is called SHA­1. In this report we describe a portable and efficient implementation information used in their construction. \\Lambda This work was performed under U.S. Department of Energy

McCurley, Kevin

19

Sand Simulation Abhinav Golas  

E-Print Network [OSTI]

(Wikipedia) Size variation from 1m to icebergs Food grains, sand, coal etc. Powders ­ can be suspended in gas May 6, 2009 5 #12;What are Granular materials? Can exist similar to various forms of matter Gas/Liquid ­ powders can be carried by velocity fields Sandstorms Liquid/Solid ­ similar to liquids embedded

Lin, Ming C.

20

CONTRACTOR REPORT SAND927005  

E-Print Network [OSTI]

CONTRACTOR REPORT SAND927005 Unlimited Release UC261 Fatigue of Fiberglass Wind Turbine Blade WIND TURBINE BLADE MATERIALS J.F. Mandell, R.M. Reed, D.D. Samborsky Montana State University Bozeman in wind turbine blades has been explored. Coupon testing was carried out under constant amplitude tensile

Note: This page contains sample records for the topic "monazite sand ce" 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

Sand2005-6808  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: CrystalFG36-08GO18149SpeedingRenewable Energy Agricultural SAND2005-6808

22

SAND92-7293  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStories »SubmitterJ.Running onRyanReactionsSAND2-7293

23

WASTEWATER TREATMENT OVER SAND COLUMNS  

E-Print Network [OSTI]

93/0096 WASTEWATER TREATMENT OVER SAND COLUMNS TREATMENT YIELDS, LOCALISATION OF THE BIOMASS Domestic wastewater treatment by infiltration-percolation is a process that becomming common in France, a greater depth for desinfection purposes. KEYWORDS Wastewater treatment, Infiltration-percolation. Sand

Paris-Sud XI, Université de

24

Records of the evolution of the Himalayan orogen from in situ Th-Pb ion microprobe dating of monazite: Eastern Nepal and western Garhwal  

E-Print Network [OSTI]

of monazite: Eastern Nepal and western Garhwal E.J. Catlos,1 * T. Mark Harrison,1 Craig E. Manning,2 Marty-1567, USA 3 Department of Geology, Tri-Chandra Campus, Tribhuvan University, Kathmandu, Nepal 4 Department rocks collected along two transects (the Dudh Kosi-Everest, eastern Nepal and the Bhagirathi River

Harrison, Mark

25

* Phys 222 may be substituted for Chem 178/178L ** CE 460 may be substituted for CE 333 or CE 334  

E-Print Network [OSTI]

(Structural Analysis I) 3 CE 372 (Engr Hydro & Hydraulics) 3 CE 360 (Geotechnical Engineering) 3 CE 382 (Engr Hydro & Hydraulics) 3 CE 355 (Transportation Engr) 3 CE 382 (Design of Concretes) 3 CE 326 Design) 3 Numerical Analysis Elective 3 CE 485 (CE Design I) 2 Micro 201 (General Microbiology) 3 Engr

Lin, Zhiqun

26

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

27

Onsite Wastewater Treatment Systems: Sand Filters  

E-Print Network [OSTI]

Sand filters are beds of granular material, or sand, drained from underneath so that pretreated wastewater can be treated, collected and distributed to a land application system. This publication explains the treatment, design, operation...

Lesikar, Bruce J.

2008-10-23T23:59:59.000Z

28

Compression and Creep of Venice Lagoon Sands  

E-Print Network [OSTI]

A laboratory test program was conducted to evaluate the one-dimensional (1D) compression and creep properties of intact sand (and silty-sand) samples from a deep borehole at the Malamocco Inlet to the Venice Lagoon. The ...

Sanzeni, Alex

29

Canadian Oil Sands: Canada An Emerging Energy  

E-Print Network [OSTI]

of the oil sands over the next 25 years. The use of the term "reserves" in the global context is really, royalty and regulatory regimes and the accuracy of the estimates of Canadian Oil Sands' reserves volumes1 Canadian Oil Sands: Canada ­ An Emerging Energy Superpower 0 University of Alberta February 8

Boisvert, Jeff

30

Treating tar sands formations with karsted zones  

DOE Patents [OSTI]

Methods for treating a tar sands formation are described herein. The tar sands formation may have one or more karsted zones. Methods may include providing heat from one or more heaters to one or more karsted zones of the tar sands formation to mobilize fluids in the formation. At least some of the mobilized fluids may be produced from the formation.

Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

2010-03-09T23:59:59.000Z

31

Testing sand used in hydraulic fracturing operations  

SciTech Connect (OSTI)

Recommended practices for testing sand used in hydraulic fracturing operations are outlined as developed by the Task Group on Evaluation of Hydraulic Fracturing Sand under the API Subcommittee on Evaluation of Well Completion Materials. The tests recommended were developed to improve the quality of frac sand delivered to the well site, and are for use in evaluating certain physical properties of sand used in hydraulic fracturing operations. The tests suggested enable users to compare physical characteristics of various sands and to select materials most useful for such applications. Parameters to be tested include turbidity, clay and soft particle content, crush resistance, and mineralogic analysis.

Not Available

1983-03-01T23:59:59.000Z

32

SAND REPORT SAND2002-0546 Unlimited Release  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStories »SubmitterJ.Running onRyanReactionsSAND REPORT

33

SAND2006-4506 P  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStories »SubmitterJ.Running onRyanReactionsSAND REPORT506P

34

SAND2006-6448 P  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStories »SubmitterJ.Running onRyanReactionsSAND

35

Liquefaction characteristics of a fine sand  

E-Print Network [OSTI]

LIQUEFACTION CHARACTERISTICS OF A FINE SAND A Thesis by DONALD TIMOTHY BRANDON Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1974 Major Subject...: Civil Engineering LIQUEFACTION CHARACTERISTICS OF A FINE SAND A Thesis by DONALD TIMOTHY BRANDON Approved as to style and content by: airman o Commi ee) ead of Depar ent) (Member) ( ber) ABSTRACT LIQUEFACTION CEARACTERISTICS OF A FINE SAND...

Brandon, Donald Timothy

2012-06-07T23:59:59.000Z

36

Update: Proposed CE Curriculum & Program  

E-Print Network [OSTI]

Update: Proposed CE Curriculum & Program Bruce Jacob, End of Summer 2008 #12;What's all this, then, students, graduates · Held constituents' meeting over winter · Group vote this curriculum Barua has agreed to develop and teach the course ENEE 3xx (Digital systems) -- new course Bruce Jacob

Jacob, Bruce

37

College of Engineering CE Civil Engineering  

E-Print Network [OSTI]

College of Engineering CE Civil Engineering KEY: # = new course * = course changed = course.Lecture,twohours;laboratory,fourhoursperweek.Prereqorcoreq:MA113orconsentofinstructor. CE 120 INTRODUCTION TO CIVIL ENGINEERING. (1) An introduction to the civil engineering profession and the use of computer hardware and software in CE systems analysis and design

MacAdam, Keith

38

technology offer SandTES -High Temperature Sand Thermal Energy Storage  

E-Print Network [OSTI]

technology offer SandTES - High Temperature Sand Thermal Energy Storage key words: High Temperature Energy Storage | Fluidized Bed | Sand | The invention consists of a fluidized bed with internal heat together with Dr. Eisl of ENRAG GmbH. Background Thermal energy storage (TES) systems are essential

Szmolyan, Peter

39

Canadian Oil Sands: Canada's Energy Advantage  

E-Print Network [OSTI]

crude oil production, global energy demand, the estimated reserves and resources at Syncrude, views that the world will need oil for decades to come, the expectations regarding oil sands productive capacityCanadian Oil Sands: Canada's Energy Advantage 0 #12;Forward looking information 1 In the interest

Boisvert, Jeff

40

SANDIA REPORT SAND2006-7744  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-7744 Unlimited Release Printed December 2006 Supersedes SAND2006-2161 Dated of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

Kolda, Tamara G.

Note: This page contains sample records for the topic "monazite sand ce" 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

SANDIA REPORT SAND2000-2094  

E-Print Network [OSTI]

SANDIA REPORT SAND2000-2094 Unlimited Release Printed August 2000 Application of the Smart, for the United States Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; distribution is unlimited. #12;August 2000 i SAND2000-2094 Unlimited Release Printed August 2000 Application

42

SANDIA REPORT SAND99-2758  

E-Print Network [OSTI]

SANDIA REPORT SAND99-2758 Unlimited Release Printed November 1999 Modeling Decomposition Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further dissemination unlimited. #12;Inside front cover (disclaimer goes here) 2 #12;SAND99-2758 Unlimited Release Printed

43

SANDIA REPORT SAND2014-17401  

E-Print Network [OSTI]

SANDIA REPORT SAND2014-17401 Unlimited Release Printed September 2014 Wave Energy Converter (WEC States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work://www.ntis.gov/help/ordermethods.asp?loc=7-4-0#online #12;3 SAND2014-17401 Unlimited Release Printed September 2014 Wave Energy Converter

44

Hydraulic conductivity of shaly sands  

SciTech Connect (OSTI)

The effects of clays on the hydraulic conductivity of a sandstone are analyzed by considering a simple clay coating structure for the sand grains. In the model, silicate insulating nuclei are uniformly surrounded by charged clay particles. The total charge on the clays is compensated by a counterion density Q{sub v}. Assuming a capillary flow regime inside this granular model a Kozeny-Carman type equation has been derived, expressing its intrinsic permeability k in terms of a porosity-tortuosity factor {phi}{sup (m{minus}0.5)} and of the parameter Q{sub v}. The power-law derived expression shows that k decreases with the amount of clay, not only because a high Q{sub v} implies a narrowing of the pore channels, but also because it modifies the hydraulic tortuosity of the medium. This new equation has been statistically tested with extensive petrophysical laboratory data for different types of shaly sandstones.

Lima, O.A.L. de [PPPG/Federal Univ. of Bahia, Salvador Bahia (Brazil)

1994-12-31T23:59:59.000Z

45

Shock response of dry sand.  

SciTech Connect (OSTI)

The dynamic compaction of sand was investigated experimentally and computationally to stresses of 1.8 GPa. Experiments have been performed in the powder's partial compaction regime at impact velocities of approximately 0.25, 0.5, and 0.75 km/s. The experiments utilized multiple velocity interferometry probes on the rear surface of a stepped target for an accurate measurement of shock velocity, and an impedance matching technique was used to deduce the shock Hugoniot state. Wave profiles were further examined for estimates of reshock states. Experimental results were used to fit parameters to the P-Lambda model for porous materials. For simple 1-D simulations, the P-Lambda model seems to capture some of the physics behind the compaction process very well, typically predicting the Hugoniot state to within 3%.

Reinhart, William Dodd; Thornhill, Tom Finley, III (,; ); Chhabildas, Lalit C.. (..); Vogler, Tracy John; Brown, Justin L.

2007-08-01T23:59:59.000Z

46

Skin friction for steel piles in sand  

E-Print Network [OSTI]

SkiN FRICTION FOR STEZL PIIZS IN SAND A Theeia by I. H. Sulaiman Submittei io the graduate College of t, he Texan AAB Univen-ity in Ixantial fulfil. ment of bhe zequiremenbu for the degree of NASTZR 0F SCISNCZ May 196'7 bsrjor Subject...: Civil Engineering SKIN FRICTION FOR STEEL PILES IN SAND A Thesis by I. H. Sulaiman Approved as to style and content by: Chairman of C mmittee Head of Department Memb Member 111 Skin Friction For Steel Piles in Sand (May 1967) Ibr shim Hikmat...

Sulaiman, Ibrahim Hikmat

2012-06-07T23:59:59.000Z

47

CE Geothermal | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBoston Areais3: Crystalline Rock - Basement JumpGeneral: CDOT Name: CE

48

International Refrigeration: Order (2012-CE-1510) | Department...  

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

Refrigeration: Order (2012-CE-1510) July 20, 2012 DOE ordered International Refrigeration Products to pay an 8,000 civil penalty after finding International Refrigeration had...

49

Treating tar sands formations with dolomite  

DOE Patents [OSTI]

Methods for treating a tar sands formation are described herein. The tar sands formation may include dolomite and hydrocarbons. Methods may include providing heat at less than the decomposition temperature of dolomite from one or more heaters to at least a portion of the formation. At least some of the hydrocarbon fluids are mobilized in the formation. At least some of the hydrocarbon fluids may be produced from the formation.

Vinegar, Harold J.; Karanikas, John Michael

2010-06-08T23:59:59.000Z

50

Table 1. Connection of Criterion 8 CE Outcomes to CE Courses (required, design elective, advanced elective)  

E-Print Network [OSTI]

treatment Biological wastewater treatment (d) Proficiency in Water Resources Engineering CE 3305 CE 3354 CE systems Design of advance water treatment systems Design of biological wastewater treatment systems (g ENVE 4391 ENVE 4399 Water, wastewater, air, solid waste Physical and chemical treatment Advanced water

Gelfond, Michael

51

Thermoelectric Couple Demonstration of (In, Ce)-based Skutterudite...  

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

Couple Demonstration of (In, Ce)-based Skutterudite Materials for Automotive Energy Recovery Thermoelectric Couple Demonstration of (In, Ce)-based Skutterudite Materials for...

52

Lumiram Electric: Order (2010-CE-1014) | Department of Energy  

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

Lumiram Electric: Order (2010-CE-1014) Lumiram Electric: Order (2010-CE-1014) November 23, 2010 DOE issued an Order and entered into a Compromise Agreement with Lumiram Electric...

53

Creating fluid injectivity in tar sands formations  

DOE Patents [OSTI]

Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons including mobilized hydrocarbons are produced from the portion.

Stegemeier, George Leo; Beer, Gary Lee; Zhang, Etuan

2012-06-05T23:59:59.000Z

54

Creating fluid injectivity in tar sands formations  

DOE Patents [OSTI]

Methods for treating a tar sands formation are described herein. Methods for treating a tar sands may include heating a portion of a hydrocarbon layer in the formation from one or more heaters located in the portion. The heat may be controlled to increase the permeability of at least part of the portion to create an injection zone in the portion with an average permeability sufficient to allow injection of a fluid through the injection zone. A drive fluid and/or an oxidizing fluid may be provided into the injection zone. At least some hydrocarbons are produced from the portion.

Stegemeier, George Leo; Beer, Gary Lee; Zhang, Etuan

2010-06-08T23:59:59.000Z

55

ADVISER ROOM # EMAIL ADDRESS Adams 221 COBH (eda@ce.montana.edu)  

E-Print Network [OSTI]

, Michael L. Adams Senior CE Betcher, Jacob M. Lewandowski Freshman CE Bigelow, Adam J. (F 11) Larsson Sophomore CE Deen, Michael Perkins Junior CE Devoe, Colleen L. (1st deg Arch) Larsson Sophomore CE #12;DeWitt

Dyer, Bill

56

Sand Mountain Electric Cooperative- Residential Heat Pump Loan Program  

Broader source: Energy.gov [DOE]

The Sand Mountain Electric Cooperative offers a heat pump loan program to eligible residential members. To qualify, members must have had power with Sand Mountain Electric Cooperative for at least...

57

Laboratory investigations of effective flow behavior in unsaturated heterogeneous sands  

E-Print Network [OSTI]

Laboratory investigations of effective flow behavior in unsaturated heterogeneous sands D, Lyngby Abstract. Two-dimensional unsaturated flow and transport through heterogeneous sand was investigated under controlled laboratory conditions. The unsaturated hydraulic conductivity of five homogeneous

Wildenschild, Dorthe

58

athabasca tar sands: Topics by E-print Network  

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

tar sands resources are estimated at 60 to 80 unknown authors 2 Request received (from Norway, regarding e-mail titled "Grandparents Oppose Tar Sands"): Thanks. I have seen them in...

59

Solvent extraction of southern US tar sands  

SciTech Connect (OSTI)

The socioeconomic aspects of the tar sands recovery were investigated by Diversified Petroleum Recovery, Inc. Mineral Resources Institute at the University of Alabama conducted characterization and beneficiation studies on Alabama tar sands. Two sources in the state were identified, namely, Black Wax Hill and Spring Creek. Samples were obtained, beneficiated, then shared with the University of Arkansas. The University of Arkansas conducted research in three areas, namely, solvation and characterization of the tar sands phase equilibria as well as the design and operation of a bench-scale batch model. In the solvation studies, the results indicate that grinding the tar sands too fine results in downstream processing problems. Also, preliminary indications are that the beneficiation step may not be necessary in the solvation of the bitumen. The phase equilibria of the heptane/brine/isopropyl alcohol/XTOL{trademark} system is very complex. The salt concentration of the brine is significant in the partitioning of the isopropanol and heptane. Equilibrium data for some of the various combinations of chemical constituents have been obtained. Also included are appendices: statistical data on highways; petrography; Dean-Starke technique; FTIR and NMR spectra; FORTRAN computer program for GC; simulation of flash behavior for IPA/brine/fatty acid/N-C{sub 7} mixture; and previous progress reports. 32 figs., 28 tabs.

Not Available

1989-05-01T23:59:59.000Z

60

SANDIA REPORT SAND2003-8550  

E-Print Network [OSTI]

SANDIA REPORT SAND2003-8550 Unlimited Release Printed October 2003 Stationarity Results Company, for the United States Department of Energy's National Nuclear Security Administration under by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation

Kolda, Tamara G.

Note: This page contains sample records for the topic "monazite sand ce" 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

SANDIA REPORT SAND 2009-0805  

E-Print Network [OSTI]

SANDIA REPORT SAND 2009-0805 Unlimited Release Printed February 2009 Mathematical Challenges of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

Kolda, Tamara G.

62

SANDIA REPORT SAND2007-0905  

E-Print Network [OSTI]

SANDIA REPORT SAND2007-0905 Unlimited Release Printed February, 2007 Blended Atomistic Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04

Bochev, Pavel

63

SANDIA REPORT SAND2014-17474  

E-Print Network [OSTI]

SANDIA REPORT SAND2014-17474 Unlimited Release Printed September 2014 Investigation of Wave Energy for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved

64

SANDIA REPORT SAND2006-5315  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-5315 Unlimited Release Printed August 2006 A generating set direct search, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

Lewis, Robert Michael

65

SANDIA REPORT SAND2007-6422  

E-Print Network [OSTI]

SANDIA REPORT SAND2007-6422 Printed October 2007 Resolving the Sign Ambiguity in the Singular Value States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work Martin Company, for the United States Department of Energy's National Nuclear Security Administration

Kolda, Tamara G.

66

SANDIA REPORT SAND2011-3622  

E-Print Network [OSTI]

SANDIA REPORT SAND2011-3622 Unlimited Release Printed May 2011 Solar Thermochemical Hydrogen of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear

67

SANDIA REPORT SAND2007-3257  

E-Print Network [OSTI]

SANDIA REPORT SAND2007-3257 Unlimited Release Printed May 2007 Nonlinearly-Constrained Optimization for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

68

SANDIA REPORT SAND2006-5315  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-5315 ct search ian algorithm for combination of nstraints . M. Lewis, and V,for the United States Departmentof Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL;Issued by Sandia National Laboratories, operated for the United States Department of Energy by Sandia

Kolda, Tamara G.

69

SANDIA REPORT SAND2009-0857  

E-Print Network [OSTI]

SANDIA REPORT SAND2009-0857 Unlimited Release Printed February 2009 An Optimization Approach for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

70

SANDIA REPORT SAND2011-3119  

E-Print Network [OSTI]

SANDIA REPORT SAND2011-3119 Unlimited Release Printed May 2011 Proton Exchange Membrane Fuel Cells Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

71

SANDIA REPORT SAND2009-6670  

E-Print Network [OSTI]

SANDIA REPORT SAND2009-6670 Unlimited Release Printed October 2009 Generalized Bad of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

Kolda, Tamara G.

72

SANDIA REPORT SAND2013-0501  

E-Print Network [OSTI]

SANDIA REPORT SAND2013-0501 Unlimited Release Printed February 2013 Vessel Cold-Ironing Using of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National

73

SANDIA REPORT SAND2007-2706  

E-Print Network [OSTI]

SANDIA REPORT SAND2007-2706 Unlimited Release Printed May 2007 Cross-Language Information Retrieval States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

Kolda, Tamara G.

74

SANDIA REPORT SAND2005-6864  

E-Print Network [OSTI]

SANDIA REPORT SAND2005-6864 Unlimited Release Printed November 2005 Robust Large-scale Parallel for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

75

SANDIA REPORT SAND2007-6702  

E-Print Network [OSTI]

SANDIA REPORT SAND2007-6702 Unlimited Release Printed November 2007 Tensor Decompositions Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

Kolda, Tamara G.

76

SANDIA REPORT SAND2008-6553  

E-Print Network [OSTI]

SANDIA REPORT SAND2008-6553 Unlimited Release Printed October 2008 Asynchronous parallel hybrid States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

Kolda, Tamara G.

77

SANDIA REPORT SAND2006-4466  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-4466 Unlimited Release Printed July 2006 The Effect of Boundary Conditions Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04

Howle, Victoria E.

78

SANDIA REPORT SAND2014-16800  

E-Print Network [OSTI]

SANDIA REPORT SAND2014-16800 Unlimited Release Printed August 2014 A Comparison of Platform Options States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy

79

SANDIA REPORT SAND2014-16840  

E-Print Network [OSTI]

SANDIA REPORT SAND2014-16840 Unlimited Release Printed August 2014 Investigation of Wave Energy for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved

80

SANDIA REPORT SAND2004-8055  

E-Print Network [OSTI]

SANDIA REPORT SAND2004-8055 Unlimited Release Printed February 2004 Revisiting Asynchronous of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

Kolda, Tamara G.

Note: This page contains sample records for the topic "monazite sand ce" 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

SANDIA REPORT SAND2006-7592  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-7592 2006 Efficient MATLAB computations with sparse and factored tensorsWaUonunder A #12;Issued by Sandia National Laboratories, operated for the United StatesDepartment of Energy by Sandia Corporation. NOTICE:This report was prepared as an accountof work sponsoredby an agency

Kolda, Tamara G.

82

SANDIA REPORT SAND2006-2161  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-2161 Unlimited Release Printed June 2006 Temporal Analysis of Social for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

83

SANDIA REPORT SAND2006-4055  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-4055 Unlimited Release Printed October 2006 DAKOTA, A Multilevel Parallel Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04

Kolda, Tamara G.

84

SANDIA REPORT SAND2004-3487  

E-Print Network [OSTI]

SANDIA REPORT SAND2004-3487 Unlimited Release Printed July 2004 A Preliminary Report Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL

Kolda, Tamara G.

85

SANDIA REPORT SAND2011-1877  

E-Print Network [OSTI]

SANDIA REPORT SAND2011-1877 Unlimited Release Printed March 2011 Making Tensor Factorizations Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

Kolda, Tamara G.

86

SANDIA REPORT SAND99-2953  

E-Print Network [OSTI]

SANDIA REPORT SAND99-2953 Unlimited Release Printed November 1999 a Shaped-Charge Parallel by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract laboratories #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

87

SANDIA REPORT SAND2008-5844  

E-Print Network [OSTI]

SANDIA REPORT SAND2008-5844 Unlimited Release Printed September 2008 Concurrent Optimization for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

88

SANDIA REPORT SAND2009-4494  

E-Print Network [OSTI]

SANDIA REPORT SAND2009-4494 Unlimited Release Printed July 2009 Algebraic Connectivity and Graph of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

89

SANDIA REPORT SAND2004-6391  

E-Print Network [OSTI]

SANDIA REPORT SAND2004-6391 Unlimited Release Printed December 2004 APPSPACK 4.0: Asynchronous for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

90

SANDIA REPORT SAND2011-4130  

E-Print Network [OSTI]

SANDIA REPORT SAND2011-4130 Unlimited Release DAKOTA JAGUAR 2.1 User's Manual Brian M. Adams Ethan, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved

91

SANDIA REPORT SAND2014-17460  

E-Print Network [OSTI]

SANDIA REPORT SAND2014-17460 Unlimited Release Printed September 2014 Wave Energy Converter Effects for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. Approved for public

92

SANDIA REPORT SAND2004-6574  

E-Print Network [OSTI]

SANDIA REPORT SAND2004-6574 Unlimited Release Printed January 4, 2005 Sensitivity Technologies Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04

Wilcox, Lucas C.

93

SANDIA REPORT SAND 2011-3446  

E-Print Network [OSTI]

SANDIA REPORT SAND 2011- 3446 Unlimited Release Printed October 2011 Phoenix: Complex Adaptive for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. Approved for public

94

SANDIA REPORT SAND2003-8516  

E-Print Network [OSTI]

SANDIA REPORT SAND2003-8516 Unlimited Release Printed September 2003 Optimizing and Empirical Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL

Kolda, Tamara G.

95

SANDIA REPORT SAND2004-4596  

E-Print Network [OSTI]

SANDIA REPORT SAND2004-4596 Unlimited Release Printed September 2004 Sensors for Environmental Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL

Ho, Cliff

96

SANDIA REPORT SAND2006-6286  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-6286 Unlimited Release Printed October 2006 Solution-Verified Reliability, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

97

SANDIA REPORT SAND2006-4621  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-4621 Unlimited Release Printed August 2006 Asynchronous parallel generating Company, for the United States Department of Energy's National Nuclear Security Administration under by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation

Kolda, Tamara G.

98

SANDIA REPORT SAND2005-0336  

E-Print Network [OSTI]

SANDIA REPORT SAND2005-0336 Unlimited Release Printed Month/Year FY04 Field Evaluations of an In Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL

Ho, Cliff

99

SANDIA REPORT SAND2001-0643  

E-Print Network [OSTI]

SANDIA REPORT SAND2001-0643 Unlimited Release Printed March 2001 Review of Chemical Sensors for In of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored, for the United States Department of Energy under Contract DE-AC04-94AL85000. Approved for public release; further

Ho, Cliff

100

SANDIA REPORT SAND98-2668  

E-Print Network [OSTI]

SANDIA REPORT SAND98-2668 Unlimited Release Reprinted December 1998 G. Richard Eisler, Paul S 94550 for the United States Department of Energy under Contract DE-AC04-94AL85000 Approved for public for the United States Department of Energy by Sandia Cor- poration, a Lockheed Martin Company. NOTICE

Note: This page contains sample records for the topic "monazite sand ce" 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

SANDIA REPORT SAND2009-5805  

E-Print Network [OSTI]

SANDIA REPORT SAND2009-5805 Unlimited Release Printed September 2009 Efficient Algorithms for Mixed of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

102

SANDIA REPORT SAND2010-1422  

E-Print Network [OSTI]

SANDIA REPORT SAND2010-1422 Unlimited Release Printed March 2010 Poblano v1.0: A Matlab Toolbox States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

Kolda, Tamara G.

103

SAND93-2591 Unlimited Release  

E-Print Network [OSTI]

was performed under U.S. Department of Energy contract number DE-AC04-76DP00789. This report has been revisedSAND93-2591 Unlimited Release First Printed October 1992 Revised October 29, 1993 Revised June 22. In this report we describe a portable and efficient implementation of SHA-1 in the C language. Performance

McCurley, Kevin

104

SANDIA REPORT SAND2007-1423  

E-Print Network [OSTI]

SANDIA REPORT SAND2007-1423 Unlimited Release Printed March 2007 A Multi-Scale Q1/P0 Approach for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94AL85000. Approved

Shashkov, Mikhail

105

SANDIA REPORT SAND2006-2079  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-2079 Unclassified Unlimited Release Printed April 2006 Multilinear algebra for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

106

SANDIA REPORT SAND2014-16610  

E-Print Network [OSTI]

SANDIA REPORT SAND2014-16610 Unlimited Release Printed August 2014 Installing the Anasazi Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE

Lehoucq, Rich

107

SANDIA REPORT SAND2013-0339  

E-Print Network [OSTI]

SANDIA REPORT SAND2013-0339 Unlimited Release Printed February 28, 2013 Proceedings States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy

108

SANDIA REPORT SAND2006-2161  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-2161 Unlimited Release Printed April 2006 Temporal Analysis of Social for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

109

CONTRACTOR REPORT SAND98-I617  

E-Print Network [OSTI]

CONTRACTOR REPORT SAND98-I617 Unlimited Release Tech Area 11:A History Rebecca UIlrich Ktech Corporation, a Lockheed Martin Company, for the United States Department of Energy under Contract DE-AC04-94AL laboratories #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

Fuerschbach, Phillip

110

SANDIA REPORT SAND2004-5187  

E-Print Network [OSTI]

SANDIA REPORT SAND2004-5187 Unlimited Release Printed October 2004 MATLAB Tensor Classes for Fast of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

Kolda, Tamara G.

111

SANDIA REPORT SAND2006-6135  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-6135 Unlimited Release Printed November 2006 Extension /ith Corre Hypercube National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by an agency of the United States Government. Neither

112

SANDIA REPORT SAND2006-7592  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-7592 Unlimited Release Printed December 2006 Efficient MATLAB computations of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

Kolda, Tamara G.

113

SANDIA REPORT SAND2014-17400  

E-Print Network [OSTI]

SANDIA REPORT SAND2014-17400 Unlimited Release Printed September 2014 Investigation of Wave Energy Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL

114

SANDIA REPORT SAND99-1941  

E-Print Network [OSTI]

SANDIA REPORT SAND99-1941 Unlimited Release 828, ,-.-,,LS :xico 87185 and Livermore, California for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account, for the United States Department of Energy under Contract DE-AC04-94AL85000. Approved for public release: further

Fuerschbach, Phillip

115

SANDIA REPORT SAND2008-6109  

E-Print Network [OSTI]

SANDIA REPORT SAND2008-6109 Unlimited Release Printed September 2008 Proceedings of the 2008 Sandia for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account Department of Energy's National Nuclear Security Administration under Contract DE-AC04-94-AL85000. Approved

Kolda, Tamara G.

116

SANDIA REPORT SAND2005-4548  

E-Print Network [OSTI]

SANDIA REPORT SAND2005-4548 Unlimited Release Printed July 2005 Higher-Order Web Link Analysis States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

Kolda, Tamara G.

117

SANDIA REPORT SAND2007-2761  

E-Print Network [OSTI]

SANDIA REPORT SAND2007-2761 Unlimited Release Printed May 2007 A Taxonomy and Comparison of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National

Howle, Victoria E.

118

SANDIA REPORT SAND2006-2081  

E-Print Network [OSTI]

SANDIA REPORT SAND2006-2081 Unclassified Unlimited Release Printed April 2006 Multilinear operators Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security. #12;Issued by Sandia National Laboratories, operated for the United States Department of Energy

Kolda, Tamara G.

119

SANDIA REPORT SAND2009-6764  

E-Print Network [OSTI]

SANDIA REPORT SAND2009-6764 Unlimited Release Printed October 2009 Scalable Tensor Factorizations States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy

Kolda, Tamara G.

120

CONTRACTOR REPORT SAND97-3002  

E-Print Network [OSTI]

presents a detailed analysis of the results from fatigue studies of wind turbine blade composite materials are evident in the range of materials currently used in many blades. A preliminary evaluation of knockdownsCONTRACTOR REPORT SAND97-3002 Unlimited Distribution UC-1210 DOE/MSU COMPOSITE MATERIAL FATIGUE

Note: This page contains sample records for the topic "monazite sand ce" 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

SANDIA REPORT SAND2013-2789  

E-Print Network [OSTI]

SANDIA REPORT SAND2013-2789 Printed April 2013 New Wholesale Power Market Design Using Linked Forward Markets A Study for the DOE Energy Storage Systems Program Leigh S. Tesfatsion, C´esar A. Silva Release Printed April 2013 New Wholesale Power Market Design Using Linked Forward Markets A Study

Tesfatsion, Leigh

122

Well completion process for formations with unconsolidated sands  

DOE Patents [OSTI]

A method for consolidating sand around a well, involving injecting hot water or steam through well casing perforations in to create a cement-like area around the perforation of sufficient rigidity to prevent sand from flowing into and obstructing the well. The cement area has several wormholes that provide fluid passageways between the well and the formation, while still inhibiting sand inflow.

Davies, David K. (Kingwood, TX); Mondragon, III, Julius J. (Redondo Beach, CA); Hara, Philip Scott (Monterey Park, CA)

2003-04-29T23:59:59.000Z

123

Three dimensional fabric evolution of sheared sand  

SciTech Connect (OSTI)

Granular particles undergo translation and rolling when they are sheared. This paper presents a three-dimensional (3D) experimental assessment of fabric evolution of sheared sand at the particle level. F-75 Ottawa sand specimen was tested under an axisymmetric triaxial loading condition. It measured 9.5 mm in diameter and 20 mm in height. The quantitative evaluation was conducted by analyzing 3D high-resolution x-ray synchrotron micro-tomography images of the specimen at eight axial strain levels. The analyses included visualization of particle translation and rotation, and quantification of fabric orientation as shearing continued. Representative individual particles were successfully tracked and visualized to assess the mode of interaction between them. This paper discusses fabric evolution and compares the evolution of particles within and outside the shear band as shearing continues. Changes in particle orientation distributions are presented using fabric histograms and fabric tensor.

Hasan, Alsidqi; Alshibli, Khalid (UWA)

2012-10-24T23:59:59.000Z

124

Guide to preparing SAND reports. Revised  

SciTech Connect (OSTI)

This guide contains basic information needed to produce a SAND report. Its guidelines reflect DOE regulation and Sandia policy. The guide includes basic writing instructions in an annotated sample report; guidance for organization, format, and layout of reports produced by line organizations; and information about conference papers, journal articles, and brochures. The appendixes contain sections on Sandia`s preferred usage, equations, references, copyrights and permissions, and publishing terms.

Locke, T.K. [ed.

1996-04-01T23:59:59.000Z

125

Solvent extraction of Southern US tar sands  

SciTech Connect (OSTI)

The Department of Chemical Engineering at the University of Arkansas, in association with Diversified Petroleum Recovery, Inc. (DPR) of Little Rock, Arkansas, has been developing a solvent extraction process for the recovery of bitumen from tar sands for the past five years. The unique feature of the process is that the bitumen is recovered from the solvent by contacting with a co-solvent, which causes the bitumen to precipitate. The overall purpose of this project is to study both the technical and economic feasibility of applying this technology for recovery of bitumen from tar sands by (1) investigating the socioeconmic factors which affect (a) plant siting and (b) the market value of recovered bitumen; (2) operating a process demonstration unit at the rate of 1 lb/hr recovered bitumen while producing clean sand and recyclable solvents; and (3) determine the economic conditions which will make a bitumen recovery project economical. DPR has analyzed the historical trends of domestic production, consumption, discoveries and reserves of crude oil. They have started an investigation of the volatility in the price of crude oil and of gasoline prices and of the differential between gasoline and crude oil. DPR continues to analyze the geographical movement and demand for asphalt products. Utah does not appear economically attractive as a site for a bitumen from tar sands asphalt plant. Oklahoma sites are now being studied. This report also contains the quarterly progress report from a University of Nevada study to determine bitumen composition, oxygen uptake rates, and viscosities of Alabama and Utah bitumens. Both reports have been indexed separately for inclusion on the data base.

Penney, W.R.

1990-01-01T23:59:59.000Z

126

EA-1581: Sand Hills Wind Project, Wyoming  

Broader source: Energy.gov [DOE]

The Bureau of Land Management, with DOEs Western Area Power Administration as a cooperating agency, was preparing this EA to evaluate the environmental impacts of a proposal to construct, operate, and maintain the Sand Hills Wind Energy Facility on private and federal lands in Albany County, Wyoming. If the proposed action had been implemented, Western would have interconnected the proposed facility to an existing transmission line. This project has been canceled.

127

Comparison of CeBr3 with LaBr3:Ce, LaCl3:Ce, and NaI:Tl Detectors  

SciTech Connect (OSTI)

Energy resolution and detection efficiency were compared between two sizes of cerium bromide (CeBr3) scintillators, three sizes of lanthanum bromide (LaBr3:Ce) scintillators, three sizes of sodium iodide (NaI:Tl) scintillators, and a lanthanum chloride (LaCl3:Ce) scintillator. Comparisons are made of key parameters such as energy resolution, detection efficiency, linearity, and self-activity of CeBr3, LaBr3:Ce, LaCl3:Ce, and NaI:Tl scintillator detectors. The scintillator detectors are tested by comparing the peak separation and identification in the energy range up to 3.0 MeV using 133Ba, 152Eu, and naturally occurring radioactive materials [1]. The study has shown that CeBr3 scintillator detectors provided by Saint-Gobain offer better resolution than NaI:Tl scintillator detectors. CeBr3 detectors could resolve some closely spaced peaks from 133Ba and 152Eu, which NaI:Tl could not. LaBr3:Ce has slightly better resolution, and a slightly higher efficiency than CeBr3. In this work, self-activity of each of these four detector types was measured by operating the detectors themselves. A comparison of the intrinsic activity for all of the detectors in this study is demonstrated. For CeBr3, the self-activity present may be reduced, or even eliminated in the future, through improved processes for growing the material. It will be discussed if, and under what conditions, CeBr3 may be better than LaBr3:Ce and LaCl3:Ce for detection of certain special nuclear material ?-rays [2]. An overall advantage of CeBr3 detectors over lanthanum halide and NaI:Tl detectors will be discussed.

,

2010-09-01T23:59:59.000Z

128

Policy Analysis of the Canadian Oil Sands Experience  

SciTech Connect (OSTI)

For those who support U.S. oil sands development, the Canadian oil sands industry is often identified as a model the U.S. might emulate, yielding financial and energy security benefits. For opponents of domestic oil sands development, the Canadian oil sands experience illustrates the risks that opponents of development believe should deter domestic policymakers from incenting U.S. oil sands development. This report does not seek to evaluate the particular underpinnings of either side of this policy argument, but rather attempts to delve into the question of whether the Canadian experience has relevance as a foundational model for U.S. oil sands development. More specifically, this report seeks to assess whether and how the Canadian oil sands experience might be predictive or instructive in the context of fashioning a framework for a U.S. oil sands industry. In evaluating the implications of these underpinnings for a prospective U.S. oil sands industry, this report concentrates on prospective development of the oil sands deposits found in Utah.

None, None

2013-09-01T23:59:59.000Z

129

CIVIL ENGINEERING PREREQUISITE SUMMARY Note: BSCE candidate means that you have been admitted to upper division. CE enrolled means you are listed  

E-Print Network [OSTI]

3316 Transportation Engineering BSCE cand. CE 3426 Soil Mechanics CE 2425, CE 2017, BSCE cand. CE 4096 & Engineering Drawing CE 2017 CE 3016 Surveying Math 1297 CE 3025 Environmental Engineering Chem 1151 or 1153 and 1154, CE 3221, BSCE cand. CE 3026 Project Management None CE 3027 Infrastructure Materials CE 2017

Levinson, David M.

130

American Power: Order (2010-CE-0911) | Department of Energy  

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

Power: Order (2010-CE-0911) American Power: Order (2010-CE-0911) October 5, 2010 DOE issued an Order and entered into a Compromise Agreement with American Power Solutions, Inc....

131

rtino is prof of Cyber Ce  

E-Print Network [OSTI]

Program Technolo Worksho Bertino is Compute systems Compute to secure rtino is prof of Cyber Ce internatio Database Indexing Intelligen Services the Very on the e Security& on Web, Program VLDB, A Data Eng distributed fessor of Co enter and R nce and Se mputer Scien EC laborator maden) in S ers Universi arch

Holland, Jeffrey

132

CeBiTec Symposium Molecular Biotechnology  

E-Print Network [OSTI]

F), Bielefeld University April 3 ­ 4, 2014 PROGRAMME Thursday, April 3rd, 2014 11:00 Registration / Snacks 12:00 Opening remarks Volker F. Wendisch, Bielefeld University, Germany Welcome addresses Martin Egelhaaf (Vice.N. (University of Paderborn) Introduction to the CeBiTec Thomas Noll, Bielefeld University, Germany Session I

Moeller, Ralf

133

CE 473/573 Groundwater Course information  

E-Print Network [OSTI]

. Groundwater modeling 4.1. Introduction to finite-difference models 4.2. Models of groundwater flow 4.3. ModelsCE 473/573 Groundwater Fall 2011 Course information Instructor: Prof. Chris Rehmann rehmann of water and contaminants in groundwater systems to solve problems of groundwater resource evaluation

Rehmann, Chris

134

CE 473/573 Groundwater Course information  

E-Print Network [OSTI]

-reactive and reactive contaminants 4. Groundwater modeling 4.1. Introduction to finite-difference models 4.2. Models of groundwater flow 4.3. Models of contaminant transport 4.4. Available models #12;Recommended textbooks FetterCE 473/573 Groundwater Fall 2009 Course information Instructor: Prof. Chris Rehmann rehmann

Rehmann, Chris

135

The potential use of tar sand bitumen as paving asphalt  

SciTech Connect (OSTI)

The properties of several tar sand asphalts prepared in past studies by several different investigators were compared with each other and with the properties of petroleum asphalts. These results were reviewed and discussed with regard to the potential use of tar sand bitumen in pavement applications. The data show that tar sand bitumen has good potential for use in highway pavements that meet today's performance specifications. No deficiencies in the tar sand asphalts were found that would be expected to seriously affect performance. On the other hand, the data indicate that some tar sand asphalts may have superior aging characteristics, being relatively resistant to oxidative age hardening compared with typical petroleum asphalts. Asphalt-aggregate mixtures prepared using two tar sand asphalts also showed acceptable strength properties and excellent resistance to moisture-induced damage.

Petersen, J.C.

1987-01-01T23:59:59.000Z

136

Oil shale, tar sands, and related materials  

SciTech Connect (OSTI)

This sixteen-chapter book focuses on the many problems and the new methodology associated with the commercialization of the oil shale and tar sand industry. Topics discussed include: an overview of the Department of Energy's oil shale R, D, and D program; computer simulation of explosive fracture of oil shale; fracturing of oil shale by treatment with liquid sulfur dioxide; chemistry of shale oil cracking; hydrogen sulfide evolution from Colorado oil shale; a possible mechanism of alkene/alkane production in oil shale retorting; oil shale retorting kinetics; kinetics of oil shale char gasification; a comparison of asphaltenes from naturally occurring shale bitumen and retorted shale oils: the influence of temperature on asphaltene structure; beneficiation of Green River oil shale by density methods; beneficiation of Green River oil shale pelletization; shell pellet heat exchange retorting: the SPHER energy-efficient process for retorting oil shale; retorted oil shale disposal research; an investigation into the potential economics of large-scale shale oil production; commercial scale refining of Paraho crude shale oil into military specification fuels; relation between fuel properties and chemical composition; chemical characterization/physical properties of US Navy shale-II fuels; relation between fuel properties and chemical composition: stability of oil shale-derived jet fuel; pyrolysis of shale oil residual fractions; synfuel stability: degradation mechanisms and actual findings; the chemistry of shale oil and its refined products; the reactivity of Cold Lake asphaltenes; influence of thermal processing on the properties of Cold Lake asphaltenes: the effect of distillation; thermal recovery of oil from tar sands by an energy-efficient process; and hydropyrolysis: the potential for primary upgrading of tar sand bitumen.

Stauffer, H.C.

1981-01-01T23:59:59.000Z

137

Heating tar sands formations to visbreaking temperatures  

DOE Patents [OSTI]

Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat may be controlled so that at least a majority of the section reaches an average temperature of between 200.degree. C. and 240.degree. C., which results in visbreaking of at least some hydrocarbons in the section. At least some visbroken hydrocarbon fluids may be produced from the formation.

Karanikas, John Michael (Houston, TX); Colmenares, Tulio Rafael (Houston, TX); Zhang, Etuan (Houston, TX); Marino, Marian (Houston, TX); Roes, Augustinus Wilhelmus Maria (Houston, TX); Ryan, Robert Charles (Houston, TX); Beer, Gary Lee (Houston, TX); Dombrowski, Robert James (Houston, TX); Jaiswal, Namit (Houston, TX)

2009-12-22T23:59:59.000Z

138

Heating tar sands formations while controlling pressure  

DOE Patents [OSTI]

Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. A pressure in the majority of the section may be maintained below a fracture pressure of the formation. The pressure in the majority of the section may be reduced to a selected pressure after the average temperature reaches a temperature that is above 240.degree. C. and is at or below pyrolysis temperatures of hydrocarbons in the section. At least some hydrocarbon fluids may be produced from the formation.

Stegemeier, George Leo (Houston, TX) [Houston, TX; Beer, Gary Lee (Houston, TX) [Houston, TX; Zhang, Etuan (Houston, TX) [Houston, TX

2010-01-12T23:59:59.000Z

139

Oil Sands Feedstocks | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion | Department ofT ib l L d F SSales LLC OrderEfficiencyOceanOctober0 -EnergySands

140

The new small-angle diffractometer SAND at IPNS  

SciTech Connect (OSTI)

A new small-angle neutron diffractometer SAND is undergoing commissioning at IPNS pulsed source. This paper provides details of the design and expected performance of this instrument.

Crawford, R.K.; Thiyagarajan, P.; Epperson, J.E.; Trouw, F.; Kleb, R.; Wozniak, D.; Leach, D.

1995-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

alberta oil sands: Topics by E-print Network  

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

of maintenance example of strain softening material in the context of an underfoot environment for large mobile mining Joseph, Tim Grain 40 The effect of sand grain size...

142

alberta oil sand: Topics by E-print Network  

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

of maintenance example of strain softening material in the context of an underfoot environment for large mobile mining Joseph, Tim Grain 40 The effect of sand grain size...

143

SPRING 2013 CEE COURSES: v7 rev: 11/08/12 TRANSPORTATION PLANNING as CE 4410 & CE 6410  

E-Print Network [OSTI]

options for urban transport. After a student registers for CE 4410 or CE WATER MARKETS with Brian Richter and Professor Culver as CE 6500 The utility. This project course will enable us to identify what works best, and how to avoid

Acton, Scott

144

Anchoring Sites for Initial Au Nucleation on CeO2{111}: O Vacancy versus Ce Vacancy Changjun Zhang,  

E-Print Network [OSTI]

Anchoring Sites for Initial Au Nucleation on CeO2{111}: O Vacancy versus Ce Vacancy Changjun Zhang is a matter of debate. Both oxygen and cerium vacancies have been suggested as the anchoring sites initio thermodynamics approaches to investigate the formation of various vacancies at a CeO2{111} surface

Alavi, Ali

145

TESTING OF TMR SAND MANTIS FINAL REPORT  

SciTech Connect (OSTI)

Screening tests of Sand Mantis candidate materials selected for erosion resistance have been completed. The results of this testing identified that over a relatively short period of operation (<1 hour), measurable erosion will occur in each of the candidate zoom tube materials given equal operating exposure. Additionally, this testing has shown that erosion of the rubber discharge hose directly downstream of the vehicle could be expected to limit the service life of the discharge hose. On the basis of these test results, SRNL recommends the following; {lg_bullet} redesign of critical system components (e.g., zoom tube, discharge hose) should be conducted to improve system characteristics relative to erosion and capitalize on the results of this testing, {lg_bullet} continued efforts to deploy the Sand Mantis should include testing to better define and optimize operating parameters, and gain an understanding of system dynamics, {lg_bullet} discontinue wear testing with the selected materials pending redesign of critical system components (1st recommendation) and inclusion of other candidate materials. The final selection of additional candidate materials should be made following design changes, but might include a Stellite alloy or zirconia.

Krementz, D; William Daugherty, W

2007-06-12T23:59:59.000Z

146

Process for upgrading tar sand bitumen  

SciTech Connect (OSTI)

A process is described for upgrading a charge of a tar sand bitumen concentrate containing mineral matter including fine particles which comprises contacting the charge in a riser in the presence of a low boiling organic solvent diluent with finely divided attrition-resistant particles of a hot fluidizable substantially catalytically inert solid which is substantially chemically inert to a solution of mineral acid. The contact of the charge with the particles is at high temperature and short contact time to vaporize the high hydrogen containing components of the bitumen, the period of time being less than that which induces substantial thermal cracking of the charge, at the end of the time separating the vaporizing product from the fluidizable particles. The fluidizable particles now bear a deposit of both combustible solid, adherent particles of fine particles of mineral matter and metals. The particles of inert solid are passed with deposit of combustibles and fine particles of mineral matter to a regenerator to oxidize the combustible portion of the deposits, removing at least a portion of deposit of mineral matter and metals by removing the inert solid from the regenerator and contacting removed inert solid with a hot mineral acid, and recirculating fluidizable solid depleted at least in part of deposited mineral matter to contact with incoming charge of tar sand bitumen concentrate and diluent.

Bartholic, D.B.; Reagan, W.J.

1989-04-04T23:59:59.000Z

147

Solvent extraction of bitumen from tar sands  

SciTech Connect (OSTI)

This paper reports on the measurement of mass transfer rates for the extraction of bitumen from tar sands using organic solvents. The experiment was carried out in an agitated vessel using a six-blade turbine mixer on a laboratory scale. To facilitate the determination of absolute mass transfer coefficients, tar sands were specially prepared in the form of spherical particles so that mass transfer area can be computed. The variables investigated in the study included: (1) solvent type (kerosene, toluene, benzene), (2) stirrer speed, 25 rpm to 1000 rpm, and (3) particle diameter, 0.4 cm to 1.2 cm. The results indicated that solvency power varied markedly with the various solvents used and that high aromatic content promoted rapid dissolution when compared with paraffinic solvents. The mass transfer rates increased with increasing stirrer speed in accordance with the relationship: k {alpha} N{sup 0.56} where k is the mass transfer coefficient and N the stirrer speed. Increasing particle diameter also resulted in decreased mass transfer rates. The results were satisfactorily correlated in terms of a Frossling type equation, Sh {alpha} Re{sub p}{sup a}Sc{sup b}.

Hoon, A.Y.; Thomas, S. [Univ. of West Indies, St. Augustine (Trinidad and Tobago)

1995-12-31T23:59:59.000Z

148

Microstructural characterization of a Canadian oil sand  

E-Print Network [OSTI]

The microstructure of oil sand samples extracted at a depth of 75 m from the estuarine Middle McMurray formation (Alberta, Canada) has been investigated by using high resolution 3D X-Ray microtomography ($\\mu$CT) and Cryo Scanning Electron Microscopy (CryoSEM). $\\mu$CT images evidenced some dense areas composed of highly angular grains surrounded by fluids that are separated by larger pores full of gas. 3D Image analysis provided in dense areas porosity values compatible with in-situ log data and macroscopic laboratory determinations, showing that they are representative of intact states. $\\mu$CT hence provided some information on the morphology of the cracks and disturbance created by gas expansion. The CryoSEM technique, in which the sample is freeze fractured within the SEM chamber prior to observation, provided pictures in which the (frozen) bitumen clearly appears between the sand grains. No evidence of the existence of a thin connate water layer between grains and the bitumen, frequently mentioned in th...

Dinh, Hong Doan; Nauroy, Jean-Franois; Tang, Anh-Minh; Souhail, Youssef; 10.1139/T2012-072

2013-01-01T23:59:59.000Z

149

Household scale slow sand filtration in the Dominican Republic  

E-Print Network [OSTI]

Slow sand filtration is a method of water treatment that has been used for hundreds of years. In the past two decades, there has been resurgence in interest in slow sand filtration, particularly as a low-cost, household-scale ...

Donison, Kori S. (Kori Shay), 1981-

2004-01-01T23:59:59.000Z

150

BENEFICIAL UTILIZATION OF USED FOUNDRY SANDS AS CONSTRUCTION MATERIALS  

E-Print Network [OSTI]

and state environmental agencies began to pay increasing attention to industrial pollution, safety and wasteBENEFICIAL UTILIZATION OF USED FOUNDRY SANDS AS CONSTRUCTION MATERIALS By Tarun R. Naik Director - 6696 Fax: (414) 229 - 6958 #12;-2- Beneficial Utilization of Used Foundry Sands as Construction

Wisconsin-Milwaukee, University of

151

Completion methods in thick, multilayered tight gas sands  

E-Print Network [OSTI]

Tight gas sands, coal-bed methane, and gas shales are commonly called unconventional reservoirs. Tight gas sands (TGS) are often described as formations with an expected average permeability of 0.1mD or less. Gas production rates from TGS reservoirs...

Ogueri, Obinna Stavely

2008-10-10T23:59:59.000Z

152

ALUMINOSILICATE-COATED SILICA SAND FOR REACTIVE TRANSPORT EXPERIMENTS  

E-Print Network [OSTI]

ALUMINOSILICATE-COATED SILICA SAND FOR REACTIVE TRANSPORT EXPERIMENTS By JORGE ANTONIO JEREZ transport experiments; Dr. Barbara Williams and Jason Shira from University of Idaho for providing access-COATED SILICA SAND FOR REACTIVE TRANSPORT EXPERIMENTS Abstract by Jorge Antonio Jerez Briones, Ph.D. Washington

Flury, Markus

153

Tight gas sands study breaks down drilling and completion costs  

SciTech Connect (OSTI)

Given the high cost to drill and complete tight gas sand wells, advances in drilling and completion technology that result in even modest cost savings to the producer have the potential to generate tremendous savings for the natural gas industry. The Gas Research Institute sponsored a study to evaluate drilling and completion costs in selected tight gas sands. The objective of the study was to identify major expenditures associated with tight gas sand development and determine their relative significance. A substantial sample of well cost data was collected for the study. Individual well cost data were collected from nearly 300 wells in three major tight gas sand formations: the Cotton Valley sand in East Texas, the Frontier sand in Wyoming, and the Wilcox sand in South Texas. The data were collected and organized by cost category for each formation. After the information was input into a data base, a simple statistical analysis was performed. The statistical analysis identified data discrepancies that were then resolved, and it helped allow conclusions to be drawn regarding drilling and completion costs in these tight sand formations. Results are presented.

Brunsman, B. (Gas Research Inst., Chicago, IL (United States)); Saunders, B. (S.A. Holditch Associates Inc., College Station, TX (United States))

1994-06-06T23:59:59.000Z

154

www.nasa.gov WHITE SANDS MISSILE RANGE ACCESS CAPABILITIES  

E-Print Network [OSTI]

and missile launch, tracking, and recovery · Nuclear effects testing · High-speed sled track · Directed energy weapons testing · Climatic and dynamic environments testing · Atmospheric research · Electronicwww.nasa.gov WHITE SANDS MISSILE RANGE ACCESS CAPABILITIES SUMMARY White Sands Test Facility (WSTF

155

University of Minnesota UMore Park Sand and Gravel Resources  

E-Print Network [OSTI]

University of Minnesota UMore Park Sand and Gravel Resources Final Environmental Impact Statement Executive Summary The University of Minnesota has prepared a Final Environmental Impact Statement (EIS;University of Minnesota - UMore Park Sand and Gravel Resources Project Final EIS ­ October, 2010 Page i

Netoff, Theoden

156

The extraction of bitumen from western tar sands  

SciTech Connect (OSTI)

Topics discussed include: characterization of bitumen impregnated sandstone, water based tar sand separation technology, electrophoretic characterization of bitumen and fine mineral particles, bitumen and tar sand slurry viscosity, the hot water digestion-flotation process, electric field use on breaking water-in-oil emulsions, upgrading of bitumens and bitumen-derived liquids, solvent extraction.

Oblad, A.G.; Bunger, J.W.; Deo, M.D.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1990-07-01T23:59:59.000Z

157

The extraction of bitumen from western tar sands. Annual report  

SciTech Connect (OSTI)

Topics discussed include: characterization of bitumen impregnated sandstone, water based tar sand separation technology, electrophoretic characterization of bitumen and fine mineral particles, bitumen and tar sand slurry viscosity, the hot water digestion-flotation process, electric field use on breaking water-in-oil emulsions, upgrading of bitumens and bitumen-derived liquids, solvent extraction.

Oblad, A.G.; Bunger, J.W.; Deo, M.D.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1990-07-01T23:59:59.000Z

158

Method and apparatus for hydrocarbon recovery from tar sands  

DOE Patents [OSTI]

A method and apparatus for utilizing tar sands having a broad range of bitumen content is disclosed. More particularly, tar sands are pyrolyzed in a cyclone retort with high temperature gases recycled from the cyclone retort to produce oil and hydrocarbon products. The spent tar sands are then burned at 2000/degree/F in a burner to remove residual char and produce a solid waste that is easily disposable. The process and apparatus have the advantages of being able to utilize tar sands having a broad range of bitumen content and the advantage of producing product gases that are free from combustion gases and thereby have a higher heating value. Another important advantage is rapid pyrolysis of the tar sands in the cyclone so as to effectively utilize smaller sized reactor vessels for reducing capitol and operating costs. 1 fig., 1 tab.

Westhoff, J.D.; Harak, A.E.

1988-05-04T23:59:59.000Z

159

Heats of dissolution of tar sand bitumen in various solvents  

SciTech Connect (OSTI)

The dissolution of tar sand bitumen from a tar sand matrix was examined using three solvents: (1) dichloromethane, a polar-polarizable solvent; (2) toluene, a nonpolar-polarizable solvent; and (3) hexane, a nonpolar-nonpolarizable solvent. The dichloromethane had the highest dissolution energy, followed by toluene, with hexane having the lowest dissolution energy. These data were combined with heat of dissolution of recovered bitumen and heat of wetting of spent sand to calculate the bonding energy between bitumen and the mineral matrix. The interfacial bonding energy between tar sand bitumen and the mineral matrix was found to be in the region of 0 to 0.09 cal/g of bitumen, which is very small. This conclusion may find application in recovery of energy or bitumen from bitumen-wet tar sand deposits. 9 refs., 2 tabs.

Ensley, E.K.; Scott, M.

1988-05-01T23:59:59.000Z

160

Acoustic sand detector for fluid flowstreams  

DOE Patents [OSTI]

The particle volume and particle mass production rate of particulate solids entrained in fluid flowstreams such as formation sand or fracture proppant entrained in oil and gas production flowstreams is determined by a system having a metal probe interposed in a flow conduit for transmitting acoustic emissions created by particles impacting the probe to a sensor and signal processing circuit which produces discrete signals related to the impact of each of the particles striking the probe. The volume or mass flow rate of particulates is determined from making an initial particle size distribution and particle energy distribution and comparing the initial energy distribution and/or the initial size distribution with values related to the impact energies of a predetermined number of recorded impacts. The comparison is also used to recalibrate the system to compensate for changes in flow velocity.

Beattie, Alan G. (Corrales, NM); Bohon, W. Mark (Frisco, TX)

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

CeCap LLP | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis aCallahanWindSyracuse, NY JumpKS"Cayucos,CeCap LLP

162

Recovery of bitumen from oil sand by steam with chemicals  

SciTech Connect (OSTI)

Recently, oil sand bitumen has become the center of attention as a possible oil energy substitute for the future. Until now, the development of oil sand has been performed by surface miing and conventional steam injection, these methods are limited in respect to resource recovery. A more effective method needs to be developed utilizing in situ recovery. In this study, a new attempt is made for the purpose of enhancing the recovery of bitumen from oil sand by adopting the method of injecting high pressure steam and chemicals such as solvents, surfactants, and others.

Yamazaki, T.

1988-01-01T23:59:59.000Z

163

CIVIL ENGINEERING Prerequisite Summary Note: BSCE candidate means that you have been admitted to upper division. CE enrolled means you are listed with  

E-Print Network [OSTI]

, Math 3280 (conc), BSCE cand. CE 3316 Transportation Engineering BSCE cand. CE 3426 Soil Mechanics CE & Engineering Drawing CE 2017, BSCE cand. CE 3016 Surveying Math 1297, BSCE cand. CE 3025 Environmental Engineering Chem 1151 or 1153 and 1154, CE 3221, BSCE cand. CE 3026 Project Management BSCE cand. CE 3027

Levinson, David M.

164

Process for upgrading tar sand bitumen  

SciTech Connect (OSTI)

A process is described for upgrading a charge of a tar sand bitumen concentrate containing metal impurities, colloidal calcium-containing clay and water. It consists of contacting the charge in a riser contacting zone in the presence of a low boiling organic solvent with hot fluidizable attrition-resistant substantially catalytically-inert microspheres, which are 20 to 150 microns in diameter and are composed of previously calcined kaolin clay. The contact takes place at high temperature and short contact time, which permits vaporization of the high hydrogen containing components of the bitumen. The period of time is less than that which induces substantial thermal cracking of the charge. At the end of the time the vaporized produce is separated from the microspheres of calcined kaolin clay, the microspheres of calcined kaolin clay now bearing a deposit of combustible solid, metal impurities and adherent particles of colloidal calcium-containing clay originally contained in the bitumen concentrate, immediately reducing the temperature of the vaporized product to minimize thermal cracking and recovering the product for further refining to produce one or more premium products.

Bartholic, D.B.; Reagan, W.J.

1989-02-14T23:59:59.000Z

165

An evaluation of the potential end uses of a Utah tar sand bitumen. [Tar sand distillate  

SciTech Connect (OSTI)

To date the commercial application of tar sand deposits in the United States has been limited to their use as paving materials for county roads, parking lots, and driveways because the material, as obtained from the quarries, does not meet federal highway specifications. The bitumen in these deposits has also been the subject of upgrading and refining studies to produce transportation fuels, but the results have not been encouraging from an economic standpoint. The conversion of tar sand bitumen to transportation fuels cannot compete with crude oil refining. The purposes of this study were two-fold. The first was to produce vacuum distillation residues and determine if their properties met ASTM asphalt specifications. The second was to determine if the distillates could serve as potential feedstocks for the production of aviation turbine fuels. The bitumen used for this study was the oil produced during an in situ steamflood project at the Northwest Asphalt Ridge (Utah) tar sand deposit. Two distillation residues were produced, one at +316/sup 0/C and one at +399/sup 0/C. However, only the lower boiling residue met ASTM specifications, in this case as an AC-30 asphalt. The original oil sample met specifications as an AC-5 asphalt. These residue samples showed some unique properties in the area of aging; however, these properties need to be investigated further to determine the implications. It was also suggested that the low aging indexes and high flow properties of the asphalts may be beneficial for pavements that require good low-temperature performance. Two distillate samples were produced, one at IBP-316/sup 0/C and one at IBP-399/sup 0/C. The chemical and physical properties of these samples were determined, and it was concluded that both samples appear to be potential feedstocks for the production of aviation turbine fuels. However, hydrogenation studies need to be conducted and the properties of the finished fuels determined to verify the prediction. 14 refs., 12 tabs.

Thomas, K.P.; Harnsberger, P.M.; Guffey, F.D.

1986-09-01T23:59:59.000Z

166

Aging effects on oil-contaminated Kuwaiti sand  

SciTech Connect (OSTI)

Large quantities of oil-contaminated sands resulted from the destruction of oil wells and the formation of oil lakes in Kuwait at the end of the Gulf Wa/r. A laboratory testing program was carried out to determine the geotechnical properties of this material and the effect of aging on their properties. Tests included direct shear, triaxial, and consolidation tests on clean and contaminated sand at the same relative density. The influence of aging was examined by testing uncontaminated sand after aging for one, three, and six months in natural environmental conditions. The results indicated increased strength and stiffness due to aging and a reduction of the oil content due to evaporation of volatile compounds. The factors that influence the depth of oil penetration in compacted sand columns were also examined including the type of oil, relative density, and the amount of fines.

Al-Sanad, H.A.; Ismael, N.F. [Kuwait Univ., Safat (Kuwait). Dept. of Civil Engineering

1997-03-01T23:59:59.000Z

167

A Typology of Foredune Textures: Sand Patches and Climate Controls  

E-Print Network [OSTI]

Foredunes are formed and developed in association with vegetation. A bare sand area has been viewed as a measure of dune mobility or activity and researched in association with climate controls: particularly wind power, annual mean precipitation...

Ryu, Wansang

2012-12-10T23:59:59.000Z

168

Mineral Dissolution and Secondary Precipitation on Quartz Sand...  

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

Sand in Simulated Hanford Tank Solutions Affecting Subsurface Porosity."Journal of Hydrology 472-473:159-168. doi:10.1016j.jhydrol.2012.09.021 Authors: G Wang W Um...

169

The potential use of tar sand bitumen as paving asphalt  

SciTech Connect (OSTI)

In this paper several research reports describing the preparation of potential paving asphalts from tar sand bitumen are reviewed and the results of the studies compared. The tar sand asphalts described in the studies were prepared from 1) hot water-recovered bitumen from deposits near San Luis Obispo, California (Edna deposits), and deposits near Vernal and Sunnyside, Utah; and 2) bitumen recovered from the Northwest Asphalt Ridge deposits near Vernal, Utah, by both in situ steamflood and in situ combustion recovery processes. Important properties of the tar sand asphalts compare favorably with those of specification petroleum asphalts. Laboratory data suggest that some tar sand asphalts may have superior aging characteristics and produce more water-resistant paving mixtures than typical petroleum asphalts.

Petersen, J.C.

1988-01-01T23:59:59.000Z

170

asian sand dust: Topics by E-print Network  

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

that trigger dust storms, and the lifting of dust by dust devils and other small-scale vortices. We also discuss the physics of wind-blown sand and dune formation on Venus...

171

Unconsolidated oil sands: Vertical Single Well SAGD optimization.  

E-Print Network [OSTI]

??Several recovery processes have been proposed for heavy oil and oil sands de-pending on the reservoir and fluid properties, among which steam-assisted gravity drainage (SAGD) (more)

Jamali, Ali

2014-01-01T23:59:59.000Z

172

Creating and maintaining a gas cap in tar sands formations  

DOE Patents [OSTI]

Methods for treating a tar sands formation are disclosed herein. Methods for treating a tar sands formation may include providing heat to at least part of a hydrocarbon layer in the formation from one or more heaters located in the formation. Pressure may be allowed to increase in an upper portion of the formation to provide a gas cap in the upper portion. At least some hydrocarbons are produced from a lower portion of the formation.

Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX); Dinkoruk, Deniz Sumnu (Houston, TX); Wellington, Scott Lee (Bellaire, TX)

2010-03-16T23:59:59.000Z

173

First quarter technical progress report for Thermally Modified Sand  

SciTech Connect (OSTI)

This report documents progress on a project to demonstrate suitability of Thermally Modified Sand (TMS) for large scale use by demonstrating its performance on icy roadways maintained by the State of Alaska Department of Transportation. This report deals primarily with the startup of the project and includes initial observations of the effectiveness of the use of the TMS versus the typical salt/sand combination.

Gilfilian, R.E.

1994-02-28T23:59:59.000Z

174

The effect of temperature on relative permeability of unconsolidated sand  

E-Print Network [OSTI]

THE EFFECT OF TEMPERATURE ON RELATIVE PERMEABILITY OF UNCONSOLIDATED SAND A Thesis By SIMON YSRAEL Submitted to the Graduate College of the Texas A%M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE.... Summary of Water Flood at 150 F VII. Summary of Water Flood at 293 F 48 49 50 ABSTRACT The purpose of this work was to investigate the effect of temperature on relative permeability of unconsolidated sand. The present work was performed...

Ysrael, Simon

2012-06-07T23:59:59.000Z

175

Donoghue et al.1 MODEL FOR IDENTIFYING AND CHARACTERIZING OFFSHORE SAND  

E-Print Network [OSTI]

Donoghue et al.1 MODEL FOR IDENTIFYING AND CHARACTERIZING OFFSHORE SAND SOURCES USING of offshore sand bodies. Such sand bodies might be suitable as borrow sand for renourishment projects, an interpretation of the regional patterns in offshore sediment characteristics, and a knowledge of the regional sea

Donoghue, Joseph

176

Paper No. PLSMI POST-LIQUEFACTION STATE OF SAND, STRESS CORROSION  

E-Print Network [OSTI]

Paper No. PLSMI POST-LIQUEFACTION STATE OF SAND, STRESS CORROSION CRACKING, AND RELAXATION in the process of stress corrosion cracking of the micro-morphological features on the surface of the sand grains: Dynamic compaction of sand, Sand liquefaction, Stress corrosion cracking, Static fatigue INTRODUCTION

Michalowski, Radoslaw L.

177

The extraction of bitumen from western tar sands. Annual report, July 1990--July 1991  

SciTech Connect (OSTI)

Contents of this report include the following: executive summary; characterization of the native bitumen from the Whiterocks oil sand deposit; influence of carboxylic acid content on bitumen viscosity; water based oil sand separation technology; extraction of bitumen from western oil sands by an energy-efficient thermal method; large- diameter fluidized bed reactor studies; rotary kiln pyrolysis of oil sand; catalytic upgrading of bitumen and bitumen derived liquids; ebullieted bed hydrotreating and hydrocracking; super critical fluid extraction; bitumen upgrading; 232 references; Appendix A--Whiterocks tar sand deposit bibliography; Appendix B--Asphalt Ridge tar sand deposit bibliography; and Appendix C--University of Utah tar sands bibliography.

Oblad, A.G.; Bunger, J.W.; Deo, M.D.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1992-04-01T23:59:59.000Z

178

Universitt Bielefeld Centrum fr Biotechnologie -CeBiTec  

E-Print Network [OSTI]

for the development of algal biotechnology Center for Interdisciplinary Research (ZiF), Bielefeld University, Germany September 21 ­ 24, 2014 The Center for Biotechnology (CeBiTec) of Bielefeld University cordially invites you include The 2014 International CeBiTec Research Conference aims to give a complete overview

Moeller, Ralf

179

Variation in grain shape and surface textures of fine guartz sands in the South Texas Eolian Sand Sheet  

E-Print Network [OSTI]

action on sand grains. Samples were taken from 4 transects subnormal to the prevailing wind direction at approximately 20 mile intervals. Two quartz-grain shape types were recognized in the fine sand fraction: one consisted of predominately angular... grains and the second of rounded grains. The samples containing high proportions of angular grains were located in the upwind transect, nearest to the source, and the relative roundness progressively increased in each of the 3 successive downwind...

Sims, Donald Ralph

1984-01-01T23:59:59.000Z

180

Petrological comparison of some tertiary and quaternary sands from Brazos and adjourning counties, Texas  

E-Print Network [OSTI]

//ipyramids of quartz in the Catahoula sands differ- / / entiates them from P ~ternary sands. The Claiborne sands contain much , , ' / muscovite. Volcarj g glass is common in the Jackson sends. / Angular-s+' gular roundness ratios vary for both Tertiary... and / / / Quaternary sar g. Occasional angular-subangular ratio va1ues in excess / / of 2. 00 are saracteristic of the Quaternary sands. / / Glaua' gite is more common in Tertiary than in Quaternary sands. / / / Add' Lional petrological studies of the clay...

Elsik, William Clinton

1960-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

The extraction of bitumen from western tar sands  

SciTech Connect (OSTI)

This report represents the work done during the year of May 8, 1987 to June 9, 1988. This year was the first year of a five-year program. The overall objective of the latter is to advance the technologies for recovering bitumen from the tar sands by thermal and water assisted extraction means and upgrading of bitumen to synthetic crude, and conversion of bitumens to specialty products such as asphalt and resins to levels where realistic evaluations of technical and commercial potential can be made. Additionally, it is desired to have the data at a level which is adequate for design of pilot plants of appropriate size deemed necessary for commercial scale-up of the various processes being studied. The main areas for studies covered in this report are modelling and optimization of the hydropyrolysis process for upgrading bitumens, bitumen recovery by pyrolysis of the circle Cliffs tar sands in a fluid bed, pyrolysis of Whiterocks tar sand in a rotary kiln, modelling of the combustor in the coupled fluidized bed with interbed heat transfer using heat pipes, development of superior diluents for use in the water extraction of Utah's tar sands, and fractionation and characterization of the bitumens from Asphalt Ridge and Sunnyside tar sands. 169 refs., 60 figs., 31 tars.

Oblad, A.G.; Bunger, J.W.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1989-05-01T23:59:59.000Z

182

Synthesis and structure of nanocrystalline mixed CeYb silicates  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: New method of synthesis of nanocrystalline mixed lanthanide silicates is proposed. Formation of A-type (Ce{sub 1?y}Yb{sub y}){sub 2}Si{sub 2}O{sub 7} in well dispersed Ce{sub 1?x}Yb{sub x}O{sub 2?(x/2)}SiO{sub 2} system. Formation of Yb{sub y}Ce{sub 9.33?y}(SiO{sub 4}){sub 6}O{sub 2} in agglomerated Ce{sub 1?x}Yb{sub x}O{sub 2?(x/2)}SiO{sub 2} system. - Abstract: This work presents results of studies on synthesis and structure of mixed, nanocrystalline CeYb silicates. Using TEM, XRD and FTIR we showed that heat treatment of nanocrystalline Ce{sub 1?x}Yb{sub x}O{sub 2?(x/2)} (x = 0.3, 0.5) mixed oxide supported on amorphous silica in reducing atmosphere, results in formation of CeYb mixed silicates. Dispersion of the oxide on the silica surface and thus a local lanthanide/Si atomic ratio determines the stoichiometry of the silicate. Oxide crystallites uniformly dispersed on the silica surface transformed into A-(Ce{sub 1?y}Yb{sub y}){sub 2}Si{sub 2}O{sub 7} disilicate, while the agglomerated nanoparticles converted into Yb{sub y}Ce{sub 9.33?y}(SiO{sub 4}){sub 6}O{sub 2} oxyapatite silicate as an intermediate phase.

Ma?ecka, Ma?gorzata A., E-mail: M.Malecka@int.pan.wroc.pl; K?pi?ski, Leszek

2013-07-15T23:59:59.000Z

183

Geotechnical properties of oil-contaminated Kuwaiti sand  

SciTech Connect (OSTI)

Large quantities of oil-contaminated sands resulted from exploded oil wells, burning oil fires, the destruction of oil storage tanks, and the formation of oil lakes in Kuwait at the end of the Gulf War. An extensive laboratory testing program was carried out to determine the geotechnical characteristics of this material. Testing included basic properties, compaction and permeability tests, and triaxial and consolidation tests on clean and contaminated sand at the same relative density. Contaminated specimens were prepared by mixing the sand with oil in the amount of 6% by weight or less to match field conditions. The influence of the type of oil, and relative density was also investigated by direct shear tests. The results indicated a small reduction in strength and permeability and an increase in compressibility due to contamination. The preferred method of disposal of this material is to use it as a stabilizing material for other projects such as road construction.

Al-Sanad, H.A.; Eid, W.K.; Ismael, N.F. [Kuwait Univ., Safat (Kuwait). Dept. of Civil Engineering] [Kuwait Univ., Safat (Kuwait). Dept. of Civil Engineering

1995-05-01T23:59:59.000Z

184

Investigation of guided waves propagation in pipe buried in sand  

SciTech Connect (OSTI)

The inspection of pipelines by guided wave testing is a well-established method for the detection of corrosion defects in pipelines, and is currently used routinely in a variety of industries, e.g. petrochemical and energy. When the method is applied to pipes buried in soil, test ranges tend to be significantly compromised because of attenuation of the waves caused by energy radiating into the soil. Moreover, the variability of soil conditions dictates different attenuation characteristics, which in-turn results in different, unpredictable, test ranges. We investigate experimentally the propagation and attenuation characteristics of guided waves in pipes buried in fine sand using a well characterized full scale experimental apparatus. The apparatus consists of an 8 inch-diameter, 5.6-meters long steel pipe embedded over 3 meters of its length in a rectangular container filled with fine sand, and an air-bladder for the application of overburden pressure. Longitudinal and torsional guided waves are excited in the pipe and recorded using a transducer ring (Guided Ultrasonics Ltd). Acoustic properties of the sand are measured independently in-situ and used to make model predictions of wave behavior in the buried pipe. We present the methodology and the systematic measurements of the guided waves under a range of conditions, including loose and compacted sand. It is found that the application of overburden pressure modifies the compaction of the sand and increases the attenuation, and that the measurement of the acoustic properties of sand allows model prediction of the attenuation of guided waves in buried pipes with a high level of confidence.

Leinov, Eli; Cawley, Peter; Lowe, Michael J.S. [NDE Group, Department of Mechanical Engineering, Imperial College London, London SW7 2AZ (United Kingdom)

2014-02-18T23:59:59.000Z

185

Characterization of the L-1 sand using well logs and amplitude attribute analysis  

E-Print Network [OSTI]

surround it. M here the L-1 sand is brine filled, its top produces a peak and its base produces a trough. Amplitude increases as a function of sand thickness and may be used to predict 1. . -1 sand (where brine filled) thicknesses. A gas filled sand... produces a strong polarity reversal and an oil filled sand produces a dim spot or ivcak polarity reversal. Once picks were made on all lines and crosslines included within the study area, amplitudes for the top of the L-1 sand were extracted and a L-1...

Ratliff, Thomas Lee

2012-06-07T23:59:59.000Z

186

Behavior of a full scale tieback wall in sand  

E-Print Network [OSTI]

BEHAVIOR OP A PULL SCALE TIEBACK WALL IN SAND A Thesis by MOONKYUNG CHUNG Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1991 Major... Subject: Civil Engineering BEHAUIOR OF A FULL SCALE TIEBACR WALL IN SAND A Thesis MOONKYUNG CHUNG Approved as to style and content by ean-Louis Briaud hair of Committee) Derek V. Morris (Member) Christo her C. Mathewson (Member) Jam T. P. ao...

Chung, Moonkyung

1991-01-01T23:59:59.000Z

187

Completion methods in thick, multilayered tight gas sands  

E-Print Network [OSTI]

sands have been proposed in the petroleum literature. Kuuskraa, V.A. and Haas, M.R. proposed that ?tight gas is merely an arbitrary delineation of a natural geologic continuity in the permeability of a reservoir rock. The dominant characteristic...-situ permeability as low as 0.001 mD?6. 10 Misra, R. proposed that ?tight gas sands are reservoirs that have low permeability (< 0.1 mD) and which cannot be produced at economic flow rates or do not produce economic volumes without the assistance from...

Ogueri, Obinna Stavely

2009-05-15T23:59:59.000Z

188

Case study of a multiple sand waterflood, Hewitt Unit, OK  

SciTech Connect (OSTI)

Twenty-two sands in the Hewitt field have been flooded simultaneously by Exxon Co. U.S.A.'s Hewitt Unit, and a case history of the operations is detailed. A multiple sand waterflood project requires special optimization methods to improve oil recovery. Injection and production surveillance programs and optimization methods used are highlighted. These include injection wellbore design, injection distribution, production stimulation, polymer augmented injection, and infill drilling. Successful application of these techniques has increased ultimate recovery from this waterflood operation. 3 refs.

Ruble, D.B.

1982-03-01T23:59:59.000Z

189

Ferromagnetism in chemically synthesized CeO2 nanoparticles by...  

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

by Ni doping. Ferromagnetism in chemically synthesized CeO2 nanoparticles by Ni doping. Abstract: This work reports the discovery of room-temperature ferromagnetism in 5 - 9 nm...

190

Ca2+-Doped CeBr3 Scintillating Materials  

SciTech Connect (OSTI)

Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide, their commercial availability and application are limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. This investigation employed aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was used as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were studied using the density functional theory within the generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

Guss, Paul [NSTec; Foster, Michael E. [SNL; Wong, Bryan M. [SNL; Doty, F. Patrick [SNL; Shah, Kanai [RMD; Squillante, Michael R. [RMD; Shirwadkar, Urmila [RMD; Hawrami, Rastgo [RMD; Tower, Josh [RMD; Yuan, Ding [NSTec

2014-01-01T23:59:59.000Z

191

Effects of CeO2 Support Facets on VOx/CeO2 Catalysts in Oxidative...  

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

The higher activity for VOxCeO2(110) might be related to the more abundant oxygen vacancies present on the (110) facets, evidenced from Raman spectroscopic measurements....

192

Air Quality Impact Study for UMore Park Sand and Gravel Resources  

E-Print Network [OSTI]

Air Quality Impact Study for UMore Park Sand and Gravel Resources University of Minnesota Rosemount Elliott Hendrickson Inc. Air Quality Impact Study for UMore Park Sand and Gravel Resources UOFMN 103496 ...........................................................................3 2.8 Air Emissions

Netoff, Theoden

193

Solvent and water/surfactant process for removal of bitumen from tar sands contaminated with clay  

SciTech Connect (OSTI)

This patent describes a process for removing bitumen from a tar sand contaminated with clay. It comprises: obtaining a tar sand consisting of bitumen and clay mixed with sand; introducing the tar sand into a stripper vessel; dissolving the bitumen with a solvent, the solvent also removing the clay from the sand into a liquid medium formed with the solvent and bitumen; removing the liquid medium from the sand; and washing the sand with water to which a nonionic surface active agent has been added to remove residual bitumen from the sand, the surfactive agent comprising a linear alcohol having carbon atoms within the range on the order of about eight to fifteen carbon atoms and ethoxylate units on the carbon atoms within the range on the order of about two to eight ethoxylate units, the surfactant being present in the water in an effective amount less than about 0.5 percent by volume.

Guymon, E.P.

1990-11-06T23:59:59.000Z

194

Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands...  

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

Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels 2003 DEER Conference...

195

In situ recovery of oil from Utah tar sand: a summary of tar sand research at the Laramie Energy Technology Center  

SciTech Connect (OSTI)

This report describes work done by the United States Department of Energy's Laramie Energy Technology Center from 1971 through 1982 to develop technology for future recovery of oil from US tar sands. Work was concentrated on major US tar sand deposits that are found in Utah. Major objectives of the program were as follows: determine the feasibility of in situ recovery methods applied to tar sand deposits; and establish a system for classifying tar sand deposits relative to those characteristics that would affect the design and operation of various in situ recovery processes. Contents of this report include: (1) characterization of Utah tar sand; (2) laboratory extraction studies relative to Utah tar sand in situ methods; (3) geological site evaluation; (4) environmental assessments and water availability; (5) reverse combustion field experiment, TS-1C; (6) a reverse combustion followed by forward combustion field experiment, TS-2C; (7) tar sand permeability enhancement studies; (8) two-well steam injection experiment; (9) in situ steam-flood experiment, TS-1S; (10) design of a tar sand field experiment for air-stream co-injection, TS-4; (11) wastewater treatment and oil analyses; (12) economic evaluation of an in situ tar sand recovery process; and (13) appendix I (extraction studies involving Utah tar sands, surface methods). 70 figs., 68 tabs.

Marchant, L.C.; Westhoff, J.D.

1985-10-01T23:59:59.000Z

196

Solvent extraction process for recovering bitumen from tar sand  

SciTech Connect (OSTI)

This patent describes a process for recovering bitumen from tar sand which comprises: (a) preparing a mixture containing divided tar sand and an organic solvent the ratio of the solvent to the bitumen in the tar sand is at least 2 parts solvent to 1 part bitumen form a bitument/solvent phase with a viscosity low enough to facilitate the physical separation of a significant portion of the bitumen/solvent phase from the mineral matrix of the tar sand; (b) separating by physical means at least a portion of the bitumen/solvent phase from the mineral matrix; (c) mixing the separated mineral matrix of step (b) with additional solvent in a washing stage to recover bitumen remaining with the mineral matrix; (d) introducing the recovered solvent/bitumen mixture from wash step (c) back into step (a); (e) recovering organic solvent from the mineral matrix of step (c) using an aqueous/organic solvent froth flotation phase separation where the majority of the mineral matrix remains with the aqueous phase; (f) recycling the solvent recovered from the phase separation of step (e) back to the washing step of (c); (g) separating bitumen from the bitumen/solvent phase of step (b); and (h) returning solvent collected from step (g) back to step (a).

Hsieh, C.R.; Clifford, R.K.

1987-06-30T23:59:59.000Z

197

SANDIA REPORT SAND95-8224 " UC-406  

E-Print Network [OSTI]

SANDIA REPORT SAND95-8224 " UC-406 Unlimited Release k Printed April 1995 Optimal Control of a CVD of Energy by Sandia Corporation. NOTICE This report was prepared as an account of work sponsored or subcontractors. This report has been reproduced from the best available copy. Available to DOE and DOE

198

Tree Harvest in an Experimental Sand Ecosystem: Plant Effects on  

E-Print Network [OSTI]

to determine how trees affect the behavior of these nutrients in soil water, both during growth and afterTree Harvest in an Experimental Sand Ecosystem: Plant Effects on Nutrient Dynamics and Solute Sciences/US Department of Agriculture, Washington State University, Pullman, Washington 99164, USA; 4 USDA

Vermont, University of

199

University of Minnesota UMore Park Sand and Gravel Resources  

E-Print Network [OSTI]

aggregate mines adjacent to and near the UMore Mining Area. An Environmental Impact Statement (EIS;UMore Park Sand and Gravel Resources Project ­ Final Scoping Decision Document University of Minnesota and Gravel Resources Project ­ Final Scoping Decision Document University of Minnesota, May 2009 Page 2

Netoff, Theoden

200

University of Minnesota UMore Park Sand and Gravel Resources  

E-Print Network [OSTI]

University of Minnesota UMore Park Sand and Gravel Resources Final Environmental Impact Statement has prepared a Final Environmental Impact Statement (EIS) for the establishment of new aggregate mines and Gravel Resources Project Final EIS ­ October, 2010 Page i Executive Summary The University of Minnesota

Netoff, Theoden

Note: This page contains sample records for the topic "monazite sand ce" 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

PUBLIC OPEN HOUSE Sand and Gravel Resources at UMore Park  

E-Print Network [OSTI]

PUBLIC OPEN HOUSE Sand and Gravel Resources at UMore Park Environmental Impact Statement (EIS Impact Statement (EIS)? A legal, full disclosure document that identifies the anticipated environmental) Process Thursday, November 6, 2008 Rosemount Community Center Rosemount, MN #12;What is an Environmental

Netoff, Theoden

202

Numerical and analytical modeling of sanding onset prediction  

E-Print Network [OSTI]

results vary with the selection of one or another rock strength criterion. In this work, we present four commonly used rock strength criteria in sanding onset prediction and wellbore stability studies: Mohr-Coulomb, Hoek-Brown, Drucker-Prager, and Modified...

Yi, Xianjie

2004-09-30T23:59:59.000Z

203

Nitrate-Cancrinite Precipitation on Quartz Sand in Simulated Hanford  

E-Print Network [OSTI]

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

Illinois at Chicago, University of

204

SANDIA REPORT SAND95-8223 q UC-404  

E-Print Network [OSTI]

by coupling the OPT++ optimization library to the TAC02D finite element heat transfer code. The optimizationSANDIA REPORT SAND95-8223 q UC-404 Unlimited Release Printed April 1995 , . Optimal Heat Transfer UC-404 Optimal Heat Transfer Design of Chemical Vapor Deposition Reactors Christopher D. Moen

205

SAND962331 Distribution Unlimited Release Category UC405  

E-Print Network [OSTI]

This manual describes the use of MPSalsa, an unstructured finite element (FE) code for solving chemically, heat transfer, mass transfer, and detailed reactions. In addition, considerable effort has been madeSAND96­2331 Distribution Unlimited Release Category UC­405 Printed September 1996 MPSalsa A FINITE

Devine, Karen

206

Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets  

E-Print Network [OSTI]

Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets David Jon by raindrop impacts. We use high-speed imaging of drop impacts on dry sand to describe the drop (2007), Rain splash of dry sand revealed by high-speed imaging and sticky paper splash targets, J

207

Adapted by Joshua Johnson November 12, 2013 Sand Tank (1st  

E-Print Network [OSTI]

Adapted by Joshua Johnson November 12, 2013 Sand Tank (1st Grade) Lesson Plan Science Standards: Sand Tank provided by the CSM Integrated Groundwater Modeling Center Food coloring Aquifer activity and/or the Sand Tank Curriculum Guide. Lecture: 1. So you live in a city, where do you get your clean

208

The extraction of bitumen from western oil sands. Final report, July 1989--September 1993  

SciTech Connect (OSTI)

Research and development of surface extraction and upgrading processes of western tar sands are described. Research areas included modified hot water, fluidized bed, and rotary kiln pyrolysis of tar sands for extraction of bitumen. Bitumen upgrading included solvent extraction of bitumen, and catalytic hydrotreating of bitumen. Characterization of Utah tar sand deposits is also included.

Oblad, A.G.; Bunger, J.W.; Dahlstrom, D.A.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1994-03-01T23:59:59.000Z

209

The extraction of bitumen from western oil sands. Quarterly report, April--June 1993  

SciTech Connect (OSTI)

Accomplishments are briefly described for the following tasks: environmental impact statement; coupled fluidized bed bitumen recovery and coked sand combustion; water-based recovery of bitumen; rotary kiln process for recovery of bitumen and combustion of coke sand; recovery of bitumen from oil sands using fluidized bed reactors and combustion of spent sands in transport reactors; recovery of bitumen from oil sand and upgrading of bitumen by solvent extraction; catalytic and thermal upgrading of bitumens and bitumen-derived liquids; evaluation of Utah`s major oil sand deposits for the production of asphalt, high energy jet fuels and other specialty products; development of mathematical models for bitumen recovery and processing; completion of the cost examination study of the pilot plant restoration; development studies of equipment for three-product gravity separation of bitumen and sand; determine thickener requirements; and environmental studies of the North Salt Lake pilot plant rehabilitation and eventual operation and those environmental problems associated with eventual commercial products.

Oblad, A.G.; Bunger, J.W.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1993-07-01T23:59:59.000Z

210

Homoleptic Ce(III) and Ce(IV) Nitroxide Complexes: Significant Stabilization of the 4+ Oxidation State  

SciTech Connect (OSTI)

Electrochemical experiments performed on the complex Ce-IV[2-((BuNO)-Bu-t)py](4), where [2-((BuNO)-Bu-t)py](-) = N-tert-butyl-N-2-pyridylnitroxide, indicate a 2.51 V stabilization of the 4+ oxidation state of Ce compared to [(Bu4N)-Bu-n](2)[Ce(NO3)(6)] in acetonitrile and a 2.95 V stabilization compared to the standard potential for the ion under aqueous conditions. Density functional theory calculations suggest that this preference for the higher oxidation state is a result of the tetrakis(nitroxide) ligand framework at the Ce cation, which allows for effective electron donation into, and partial covalent overlap with, vacant 4f orbitals with delta symmetry. The results speak to the behavior of CeO2 and related solid solutions in oxygen uptake and transport applications, in particular an inherent local character of bonding that stabilizes the 4+ oxidation state. The results indicate a cerium(IV) complex that has been stabilized to an unprecedented degree through tuning of its ligand-field environment.

Bogart, Justin A.; Lewis, Andrew J.; Medling, Scott A.; Piro, Nicholas A.; Carroll, Patrick J.; Booth, Corwin H.; Schelter, Eric J.

2014-06-25T23:59:59.000Z

211

Shredded tires and rubber-sand as lightweight backfill  

SciTech Connect (OSTI)

The growing interest in utilizing waste materials in civil engineering applications has opened the possibility of constructing reinforced soil structures with unconventional backfills. Scrap tires are a high-profile waste material for which several uses have been studied, including the use of shredded tires as backfill. A triaxial testing program was conducted to investigate the stress-strain relationship and strength of tire chips and a mixture of sand and tire chips. The test results and additional information from the literature were used in the numerical modeling of wall backfills, both unreinforced and reinforced with geosynthetics. The numerical modeling results suggest tire shreds, particularly when mixed with sand, may be effectively used as a backfill.

Lee, J.H.; Salgado, R.; Lovell, C.W. [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering] [Purdue Univ., West Lafayette, IN (United States). School of Civil Engineering; Bernal, A. [GeoHidra, Caracas (Venezuela)] [GeoHidra, Caracas (Venezuela)

1999-02-01T23:59:59.000Z

212

Tight sands gain as U.S. gas source  

SciTech Connect (OSTI)

This report, the last of a four part series assessing unconventional gas development in the US, examines the state of the tight gas sands industry following the 1992 expiration of the qualification period for the Sec. 29 Nonconventional Fuels Tax Credit. Because tight gas sands were the most mature of the unconventional gas sources and received only a modest tax credit, one would not expect much change when the tax credit qualification period ended, and post-1992 drilling and production data confirm this. What the overall statistics do not show, and thus the main substance of this article, is how rediscovered tight gas plays and the evolution in tight gas exploration and extraction technology have shifted the outlook for tight gas drilling and its economics from a low productivity, marginally economic resource to a low cost source of gas supply.

Kuuskraa, V.A.; Hoak, T.E.; Kuuskraa, J.A. [Advanced Resources International Inc., Arlington, VA (United States); Hansen, J. [Gas Research Inst., Chicago, IL (United States)

1996-03-18T23:59:59.000Z

213

Simultaneous upgrading of tar sand bitumen and coal by corefining  

SciTech Connect (OSTI)

A continuous process is described for simultaneously corefining a mixture of comminuted coal and tar sand bitumen to form a liquid refinery feed stock, having improved hydrocarbon content and viscosity and reduced organo-metallic and metal components, which process comprises: (a) combining bitumen substantially separated from tar sands with comminuted raw coal at a coal to liquid weight ratio of from about 1:2 to about 1 to 50 to form a slurry mixture; (b) subjecting the slurry mixture resulting from step (a) to hydrocracking conditions in the absence of added catalyst to produce off-gases and a mixture of co-refined bitumen and coal liquid and coal ash residues; and (c) recovering the corefined improve coal-bitumen liquid as a refinery feedstock.

Hsich, C.R.; Donaldson, W.I.

1988-08-16T23:59:59.000Z

214

EA-1978: Sand Creek Winds, McCone County, Montana  

Broader source: Energy.gov [DOE]

Western Area Power Administration (Western) is preparing an EA to analyze the potential environmental impacts of the proposed Sand Creek Winds Project, a 75-MW wind farm between the towns of Circle and Wolf Point in McCone County, Montana. The proposed wind farm would interconnect to Westerns existing Wolf Point to Circle 115-kV transmission line approximately 18 miles north of Wolf Point.

215

Estimation of initial reservoir pressure in tight gas sands  

E-Print Network [OSTI]

Major Subject: Petroleum Engineering ESTIMATION OF INITIAL RESERVOIR PRESSURE IN TIGHT GAS SANDS A Thesis by SUSAN ANN LEACH Approved as to style and content by: R. A. Norse (Chairman of Comaittee) A. Wattenbarger (Nember) R. R. Berg (Membe... of the Department of Petroleum Engineering, for his interest and faith during the author's graduate studies. Dr. R. A. Wattenbarger and Dr. R. R. Berg for serving as members of the author's Advisory Committee. TABLE OF CONTENTS ABSTRACT ACKNOWLEDGEMENTS...

Leach, Susan Ann

1984-01-01T23:59:59.000Z

216

SAND 2009-0463P DAKOTA 101DAKOTA 101  

E-Print Network [OSTI]

SAND 2009-0463P DAKOTA 101DAKOTA 101 C lib tiCalibration http://www.cs.sandia.gov/dakota Learning: osborne1 analytic test problem, with i = 1,...,33: i ii dxsdxsdxsxrxrxf 1 )( 2 )()( 2 )()( 2 (more coming soon) 4 #12;Example Data Set (osborne1)Example Data Set (osborne1) 1 2 1 1.2 0.8 0 4 0

217

Luminescence Enhancement of CdTe Nanostructures in LaF3:Ce/CdTe...  

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

Enhancement of CdTe Nanostructures in LaF3:CeCdTe Nanocomposites. Luminescence Enhancement of CdTe Nanostructures in LaF3:CeCdTe Nanocomposites. Abstract: Radiation detection...

218

The suburban villa (munya) and court culture in Umayyad Cordoba (756-976 CE)  

E-Print Network [OSTI]

As the capital of the Umayyad dynasty (r. 756 CE-1031 CE), the city of Cordoba developed into one of the most renowned urban centers of the western Mediterranean. The Great Mosque of Cordoba is the outstanding testament ...

Anderson, Glaire D

2005-01-01T23:59:59.000Z

219

CE 467 / 567 HIGHWAY SAFETY AND OPERATIONS Fall 2006 Course Syllabus  

E-Print Network [OSTI]

1 CE 467 / 567 HIGHWAY SAFETY AND OPERATIONS Fall 2006 Course Syllabus Catalog This course of class) #12;2 CE 467 / 567 HIGHWAY SAFETY AND OPERATIONS Fall 2006 Course Syllabus Course Outline: What

Hickman, Mark

220

E-Print Network 3.0 - allanita-ce vinculadas al Sample Search...  

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

allanita-ce vinculadas al Search Powered by Explorit Topic List Advanced Search Sample search results for: allanita-ce vinculadas al Page: << < 1 2 3 4 5 > >> 1 Elena Garrigs Mic,...

Note: This page contains sample records for the topic "monazite sand ce" 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

CE FLNG, LLC - FE DKT. NO. 12-123-LNG - ORDER 3193 | Department...  

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

CE FLNG, LLC - FE DKT. NO. 12-123-LNG - ORDER 3193 CE FLNG, LLC - FE DKT. NO. 12-123-LNG - ORDER 3193 No reports submitted for this docket. More Documents & Publications...

222

Proactive Design of n-Type (In, Ce) Filled Skutterudites Enabling...  

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

Design of n-Type (In, Ce) Filled Skutterudites Enabling High-Temperature Waste Heat Recovery Proactive Design of n-Type (In, Ce) Filled Skutterudites Enabling High-Temperature...

223

The extraction of bitumen from western oil sands: Volume 2. Final report  

SciTech Connect (OSTI)

The program is composed of 20 projects, of which 17 are laboratory bench or laboratory pilot scale processes or computer process simulations that are performed in existing facilities on the University of Utah campus in north-east Salt Lake City. These tasks are: (1) coupled fluidized-bed bitumen recovery and coked sand combustion; (2) water-based recovery of bitumen; (3) oil sand pyrolysis in a continuous rotary kiln reactor; (4) oil sand pyrolysis in a large diameter fluidized bed reactor; (5) oil sand pyrolysis in a small diameter fluidized bed reactor; (6) combustion of spent sand in a transport reactor; (7) recovery and upgrading of oil sand bitumen using solvent extraction methods; (8) fixed-bed hydrotreating of Uinta Basin bitumens and bitumen-derived hydrocarbon liquids; (9) ebullieted bed hydrotreating of bitumen and bitumen derived liquids; (10) bitumen upgrading by hydropyrolysis; (11) evaluation of Utah`s major oil sand deposits for the production of asphalt, high-energy jet fuels and other specialty products; (12) characterization of the bitumens and reservoir rocks from the Uinta Basin oil sand deposits; (13) bitumen upgrading pilot plant recommendations; (14) liquid-solid separation and fine tailings thickening; (15) in-situ production of heavy oil from Uinta Basin oil sand deposits; (16) oil sand research and development group analytical facility; and (17) process economics. This volume contains reports on nine of these projects, references, and a bibliography. 351 refs., 192 figs., 65 tabs.

Oblad, A.G.; Dahlstrom, D.A.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1997-11-26T23:59:59.000Z

224

Assessment of the KE Basin Sand Filter Inventory In Support of Hazard Categorization  

SciTech Connect (OSTI)

In 1978, the water cleaning system for the KE Basin was upgraded by adding a sand filter and ion exchange columns. Basin water containing finely divided solids is collected by three surface skimmers and pumped to the sand filter. Filtrate from the sand filter is further treated in the ion exchange modules. The suspended solids accumulate in the sand until the pressure drop across the filter reaches established operating limits, at which time the sand filter is backwashed. The backwash is collected in the NLOP, where the solids are allowed to settle as sludge. Figure 2-1 shows a basic piping and instrumentation diagram depicting the relationship among the basin skimmers, sand filter, and NLOP. During the course of deactivation and decommissioning (D&D) of the K-Basins, the sand filter and its media will need to be dispositioned. The isotopic distribution of the sludge in the sand filter has been estimated in KE Basin Sand Filter Monolith DQO (KBC-24705). This document estimates the sand filter contribution to the KE hazard categorization using the data from the DQO.

Ross, Steven B.; Young, Jonathan

2005-09-28T23:59:59.000Z

225

The extraction of bitumen from western oil sands: Volume 1. Final report  

SciTech Connect (OSTI)

The program is composed of 20 projects, of which 17 are laboratory bench or laboratory pilot scale processes or computer process simulations that are performed in existing facilities on the University of Utah campus in north-east Salt Lake City. These tasks are: (1) coupled fluidized-bed bitumen recovery and coked sand combustion; (2) water-based recovery of bitumen; (3) oil sand pyrolysis in a continuous rotary kiln reactor; (4) oil sand pyrolysis in a large diameter fluidized bed reactor; (5) oil sand pyrolysis in a small diameter fluidized bed reactor; (6) combustion of spent sand in a transport reactor; (7) recovery and upgrading of oil sand bitumen using solvent extraction methods; (8) fixed-bed hydrotreating of Uinta Basin bitumens and bitumen-derived hydrocarbon liquids; (9) ebullieted bed hydrotreating of bitumen and bitumen derived liquids; (10) bitumen upgrading by hydropyrolysis; (11) evaluation of Utah`s major oil sand deposits for the production of asphalt, high-energy jet fuels and other specialty products; (12) characterization of the bitumens and reservoir rocks from the Uinta Basin oil sand deposits; (13) bitumen upgrading pilot plant recommendations; (14) liquid-solid separation and fine tailings thickening; (15) in-situ production of heavy oil from Uinta Basin oil sand deposits; (16) oil sand research and development group analytical facility; and (17) process economics. This volume contains an executive summary and reports for five of these projects. 137 figs., 49 tabs.

Oblad, A.G.; Dahlstrom, D.A.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1997-11-26T23:59:59.000Z

226

Magnetic structures and interplay between rare-earth Ce and Fe magnetism in single-crystal CeFeAsO  

SciTech Connect (OSTI)

Neutron and synchrotron resonant x-ray magnetic scattering (RXMS) complemented by heat capacity and resistivity measurements reveal the evolution of the magnetic structures of Fe and Ce sublattices in a CeFeAsO single crystal. The RXMS of magnetic reflections at the Ce LII edge shows a magnetic transition that is specific to the Ce antiferromagnetic long-range ordering at TCe? 4 K with short-range Ce ordering above TCe, whereas neutron diffraction measurements of a few magnetic reflections indicate a transition at T?? 12 K with an unusual order parameter. Detailed order-parameter measurements on several magnetic reflections by neutrons show a weak anomaly at 4 K that we associate with the Ce ordering. The successive transitions at TCe and T? can also be clearly identified by two anomalies in heat capacity and resistivity measurements. The higher transition temperature at T?? 12 K is mainly ascribed to Fe spin reorientation transition, below which Fe spins rotate uniformly and gradually in the ab plane. The Fe spin reorientation transition and short-range Ce ordering above TCe reflect the strong Fe-Ce couplings prior to long-range ordering of the Ce. The evolution of the intricate magnetic structures in CeFeAsO going through T? and TCe is proposed.

Zhang, Qiang [Ames Laboratory; Tian, Wei [Ames Laboratory; Li, Haifeng [Ames Laboratory; Kim, Jong-Woo [Argonne Naitonal Laboratory; Yan, Jiaqiang [Ames Laboratory; McCallum, Robert William [Ames Laboratory; Lograsso, Thomas A. [Ames Laboratory; Zarestky, Jerel L. [Ames Laboratory; Budko, Sergey L. [Ames Laboratory; McQueeney, Robert J. [Ames Laboratory; Vaknin, David [Ames Laboratory

2013-11-27T23:59:59.000Z

227

ue Ce ec o o es o a Energy Efficiency &  

E-Print Network [OSTI]

phenomena improving MEA and stack performance · Optimize fuel cells and systems for early marketue Ce ec o o es o a Energy Efficiency & Renewable Energy Fuel Cell Bus Workshop Overview and Purppose Dimitrios Papageorgopoulos Fuel Cell Technologgies Proggram DOE and DOT Joint Fuel Cell Bus

228

University of Saskatchewan College of Arts & sCienCe  

E-Print Network [OSTI]

University of Saskatchewan College of Arts & sCienCe Annual report 2009/2010 #12;Contents The Dean thought....The strong work ethic of the youth of Saskatchewan, who are then exposed to high- minded Simard, BA'69, LLB'70 Minister of Health, Government of Saskatchewan (1991­1995) #12;The dean's message I

Patterson, William P.

229

2014 Course Description Solid Waste Engineering -CE 477  

E-Print Network [OSTI]

2014 Course Description Solid Waste Engineering - CE 477 Engineering Principles of Solid Waste on course web site http://people.engr.ncsu.edu/barlaz/ Solid Waste Technology & Management by Christensen et al (eBook available through NCSU libraries) Solid waste management must be addressed by virtually

Barlaz, Morton A.

230

CE 469 / 569 TRAVEL DEMAND MODELING Spring 2006 Course Syllabus  

E-Print Network [OSTI]

of travel demand data, and should apply these methods to estimating and to forecasting travel demand these to practical modeling scenarios. The student should also use existing computer tools to forecast travel demand1 CE 469 / 569 TRAVEL DEMAND MODELING Spring 2006 Course Syllabus Catalog Detailed investigation

Hickman, Mark

231

Seven-quasiparticle bands in {sup 139}Ce  

SciTech Connect (OSTI)

The high spin states in the {sup 139}Ce nucleus have been studied by in-beam {gamma}-spectroscopic techniques using the reaction {sup 130}Te({sup 12}C,3n){sup 139}Ce at E{sub beam}=65 MeV. A gamma detector array, consisting of five Compton-suppressed Clover detectors was used for coincidence measurements. 15 new levels have been proposed and 28 new {gamma} transitions have been assigned to {sup 139}Ce on the basis of {gamma}{gamma} coincidence data. The level scheme of {sup 139}Ce has been extended above the known 70 ns (19/2){sup -} isomer up to {approx}6.1 MeV in excitation energy and (35/2)({Dirac_h}/2{pi}) in spin. The spin-parity assignments for most of the newly proposed levels have been made using the deduced Directional Correlation from Oriented states of nuclei (DCO ratio) and the Polarization Directional Correlation from Oriented states (PDCO ratio) for the de-exciting transitions. The observed level structure has been compared with a large basis shell model calculation and also with the predictions from cranked Nilsson-Strutinsky (CNS) calculations. A general consistency has been observed between these two different theoretical approaches.

Chanda, Somen; Bhattacharjee, Tumpa; Bhattacharyya, Sarmishtha; Mukherjee, Anjali; Basu, Swapan Kumar; Ragnarsson, I.; Bhowmik, R. K.; Muralithar, S.; Singh, R. P.; Ghugre, S. S.; Pramanik, U. Datta [Variable Energy Cyclotron Centre, Kolkata 700064 (India); Division of Mathematical Physics, Lund Institute of Technology, Lund University, P. O. Box 118, S-22100 Lund (Sweden); Inter University Accelerator Centre, New Delhi 110067 (India); University Grants Commission and Department of Atomic Energy Consortium for Scientific Research, Kolkata 700098 (India); Saha Institute of Nuclear Physics, Kolkata 700064 (India)

2009-05-15T23:59:59.000Z

232

CE 4990 -Construction Scheduling Week 1: Steel Frame Project  

E-Print Network [OSTI]

CE 4990 - Construction Scheduling Week 1: Steel Frame Project Fall 2011 January 13, 2012 Introduction You are a construction manager for a project to build a steel frame for an office building1 of 964 pre-fabricated structural steel members will be used in the construction. The standard bay size

Mukherjee, Amlan

233

Thermodynamic and Structural Features of Aqueous Ce(III)  

SciTech Connect (OSTI)

With a single f-electron, Ce(III) is the simplest test case for benchmarking the thermodynamic and structural properties of hydrated Ln(III) against varying density functionals and reaction field models, in addition to determining the importance of multiconfigurational character in their wave functions. Here, the electronic structure of Ce(H2O)x(H2O)y3+ (x = 8, 9; y = 0, 12-14) has been examined using DFT and CASSCF calculations. The latter confirmed that the wave function of octa- and nona-aqua Ce(III) is well-described by a single configuration. Benchmarking was performed for density functionals, reaction field cavity types, and solvation reactions against the experimental free energy of hydration, ?Ghyd(Ce3+). The UA0, UAKS, Pauling, and UFF polarized continuum model cavities displayed different performance, depending on whether one or two hydration shells were examined, and as a function of the size of the metal basis set. These results were essentially independent of the density functional employed. Using these benchmarks, the free energy for water exchange between CN = 8 and CN = 9, for which no experimental data are available, was estimated to be approximately -4 kcal/mol.

Adriana Dinescu; Aurora E. Clark

2008-10-01T23:59:59.000Z

234

Thermodynamic and Structural Features of Aqueous Ce(III)  

SciTech Connect (OSTI)

With a single f-electron, Ce(III) is the simplest test case for benchmarking the thermodynamic and structural properties of hydrated Ln(III) against varying density functionals and reaction field models, in addition to determining the importance of multiconfigurational character in their wave functions. Here, the electronic structure of Ce(H?O)x(H?O)y 3+ (x =8, 9; y= 0, 12-14) has been examined using DFT and CASSCF calculations. The latter confirmed that the wave function of octa- and nona-aqua Ce(III) is well-described by a single configuration. Benchmarking was performed for density functionals, reaction field cavity types, and solvation reactions against the experimental free energy of hydration, ?Ghyd(Ce3+). The UA0, UAKS, Pauling, and UFF polarized continuum model cavities displayed different performance, depending on whether one or two hydration shells were examined, and as a function of the size of the metal basis set. These results were essentially independent of the density functional employed. Using these benchmarks, the free energy for water exchange between CN = 8 and CN = 9, for which no experimental data are available, was estimated to be approximately -4 kcal/mol.

Dinescu, Adriana; Clark, Aurora E.

2008-10-10T23:59:59.000Z

235

CO Oxidation mechanism on CeO2-supported Au nanoclusters  

SciTech Connect (OSTI)

To reveal the richer chemistry of CO oxidation by CeO2 supported Au Nanoclusters(NCs)/Nanoparticles, we design Au13 and Au12 supported on a flat and a stepped-CeO2 model (Au/CeO2) and study various kinds of CO oxidation mechanisms at the Au-CeO2 interface and the Au NC as well.

Kim H. Y.; Henkelman, G.

2013-09-08T23:59:59.000Z

236

In this Issue International CeBiTec Research Conference on Algal Biotechnology  

E-Print Network [OSTI]

Biotechnology From September 21 to 24, 2014, the CeBiTec organized the 4th International CeBiTec Research production. In this respect, the 4th International CeBiTec Research Conference 2014 aimed to give a completeBiTec ­ Quarterly www.cebitec.uni-bielefeld.de #12;2 | 4 CeBiTec ­ Quarterly | Autumn 2014 International

Moeller, Ralf

237

Neutron scattering of CeNi at the SNS-ORNL: A preliminary report  

SciTech Connect (OSTI)

This is a preliminary report of a neutron scattering experiment used to investigate 4f electron behavior in Ce.

Mirmelstein, A. [Russian Federal Nuclear Center VNIITF, Snezhinsk, Russia; Podlesnyak, Andrey A [ORNL; Kolesnikov, Alexander I [ORNL; Saporov, B. [Oak Ridge National Laboratory (ORNL); Sefat, A.S. [Oak Ridge National Laboratory (ORNL); Tobin, J. G. [Lawrence Livermore National Laboratory (LLNL)

2014-01-01T23:59:59.000Z

238

DAO O ce Note 1998-05 Version 1 Dated 12/06/1999 O ce Note Series on  

E-Print Network [OSTI]

Assimilation Siegfried Schubert, Editor Documentation of the Physical-Space Statistical Analysis System (PSAS and sources, as well as the use of the multivariate formulation. An on-line version of this document can be obtained from the DAO. Robert M. Atlas, Acting Head Data Assimilation O ce Goddard Space Flight Center

239

Renewable Energy Opportunities at White Sands Missile Range, New Mexico  

SciTech Connect (OSTI)

The document provides an overview of renewable resource potential at White Sands Missile Range (WSMR) based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations. The effort was funded by the U.S. Army Installation Management Command (IMCOM) as follow-on to the 2005 DoD Renewable Energy Assessment. This effort focuses on grid-connected generation of electricity from renewable energy sources and also ground source heat pumps (GSHPs) for heating and cooling buildings, as directed by IMCOM.

Chvala, William D.; Solana, Amy E.; States, Jennifer C.; Warwick, William M.; Weimar, Mark R.; Dixon, Douglas R.

2008-09-01T23:59:59.000Z

240

Production from multiple zones of a tar sands formation  

DOE Patents [OSTI]

A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat is allowed to transfer from the heaters to at least a portion of the formation. Fluids are produced from the formation through at least one production well that is located in at least two zones in the formation. The first zone has an initial permeability of at least 1 darcy. The second zone has an initial of at most 0.1 darcy. The two zones are separated by a substantially impermeable barrier.

Karanikas, John Michael; Vinegar, Harold J

2013-02-26T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

A study of the stress-strain response of sand  

E-Print Network [OSTI]

. Chen (1948) found a linear fit of log (col - u3) vs. log si for "the major portion of the stress-strain curve" using a vacuum triaxial test on a clean sand. The fit displayed two sharp departures from linearity, one near 0, 01K strain and one near... results qualitat1vely by adjusting observed stress-strain curves to correct for seating error. 29 20 18 16 3 m=~ 1 m =? 2 1 m =? 4 m=0 14 12 I Vl 10 (After O'Brien) K2 = 40, 000 1, 000 0. 01 0. 02 0. 03 0. 04 0. 05 Figure 16. Family...

Bigham, Robert Eric

2012-06-07T23:59:59.000Z

242

Systems and methods for producing hydrocarbons from tar sands formations  

DOE Patents [OSTI]

A system for treating a tar sands formation is disclosed. A plurality of heaters are located in the formation. The heaters include at least partially horizontal heating sections at least partially in a hydrocarbon layer of the formation. The heating sections are at least partially arranged in a pattern in the hydrocarbon layer. The heaters are configured to provide heat to the hydrocarbon layer. The provided heat creates a plurality of drainage paths for mobilized fluids. At least two of the drainage paths converge. A production well is located to collect and produce mobilized fluids from at least one of the converged drainage paths in the hydrocarbon layer.

Li, Ruijian (Katy, TX); Karanikas, John Michael (Houston, TX)

2009-07-21T23:59:59.000Z

243

User`s manual for SNL-SAND-II code  

SciTech Connect (OSTI)

Sandia National Laboratories, in the process of characterizing the neutron environments at its reactor facilities, has developed an enhanced version of W. McElroy`s original SAND-II code. The enhanced input, output, and plotting interfaces make the code much easier to use. The basic physics and operation of the code remain unchanged. Important code enhancements include the interfaces to the latest ENDF/B-VI and IRDF-90 dosimetry-quality cross sections and the ability to use silicon displacement-sensitive devices as dosimetry sensors.

Griffin, P.J.; Kelly, J.G. [Sandia National Labs., Albuquerque, NM (United States); VanDenburg, J.W. [Science and Engineering Associates, Inc., Albuquerque, NM (United States)

1994-04-01T23:59:59.000Z

244

Sandia National Laboratories: SAND 2011-5054W  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest RegionatSearch WelcomeScienceProgramsSAND 2011-5054W Copy of News /

245

SAND97-8490 UC-404 Unlimited Release  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared0 ResourceAwards SAGE Awards A National8250 UnlimitedSAND97-8490

246

SANDIA REPORT SAND2007-1199P Unlimited Release  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStoriesSANDIA REPORT SAND 2011-3958 Unlimited1199P

247

SANDIA REPORT SAND2007-4352P Unlimited Release  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStoriesSANDIA REPORT SAND 2011-3958 Unlimited1199P352P

248

SANDIA REPORT SAND2007-4407P Unlimited Release  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStoriesSANDIA REPORT SAND 2011-3958 Unlimited1199P352P407P

249

SANDIA REPORT SAND2013-9875 Unlimited Release  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassive Solar HomePromisingStoriesSANDIA REPORT SAND 2011-3958

250

Investigation of the thermal conductivity of unconsolidated sand packs containing oil, water, and gas  

E-Print Network [OSTI]

INVESTIGATION OF THE THERNAL CONDUCTIVITY OF UNCONSOLIDATED SAND PACKS CONTAINING OIL, WATER, AND GAS A Thesis David E. Gore Submitted to the Graduate School of the Agricultural and Nechanical College oi' Texas in Partial fulfillment.... EXPERIMENTAL EQUIPMENT AND PROCEDURE All tests were performed on unconsolidated sand packs containing either one, two, or three saturating fluids, Phys- ical properties of the sand and saturating fluids are shown in Tables I and II in the Appendix...

Gore, David Eugene

2012-06-07T23:59:59.000Z

251

The effect of temperature on a variable permeability, two-stage sand consolidation technique  

E-Print Network [OSTI]

consolidation processes. In 1961, Hower con- ducted large scale sand consolidation tests to determine the reasons of successes and failures for chemical sand consolidation efforts. He con- cluded that most failures were due to i mproper completion procedures... of Petroleum Technolo (December 1977) 1664, 1672. 2. Brooks, F. A. , Muecke, T. W. , Ri ckey, W. P. , Kerver, J. K. : "Externally Catalyzed Epoxy for Sand Control, " Journal of Petroleum Technology (June 1974) 589-594. 3. Hower, W. F. : "Large Scale...

Barger, Blane Rene

1985-01-01T23:59:59.000Z

252

Plant geography of coastal sand dune vegetation of the Tamaulipan Biotic Province  

E-Print Network [OSTI]

, with 140-160 cm mean annual rainfall and dark heavy mineral sand, 4) eastern Veracruz, Tabasco, and western Campeche, with 170-260 cm mean annual rainfall and tan quartz sand, 5) Laguna de Terminos, and the remaining three sectors for the Peninsula... in Veracruz or in Tabasco and Campeche, and 7) species common to the Caribbean and the Mexican Gulf Coast. Moreno-Casasola (1988) found these patterns of distribution mainly correlated with: first, variation in sand dune composition (light...

Baro de Jones, Deborah Maria

1992-01-01T23:59:59.000Z

253

GJI gji_4751 Dispatch: August 12, 2010 CE: VBF Journal MSP No. No. of pages: 14 PE: JM  

E-Print Network [OSTI]

is very broad. The extended model is applied to the case of unconsolidated sands partially saturated

254

E-Print Network 3.0 - asphaltic sand Sample Search Results  

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

from Concrete and Asphalt Plants... is proposing to operate the sand and gravel mining operation. Mineral ... Source: Netoff, Theoden - Department of Biomedical Engineering,...

255

The extraction of bitumen from western oil sands. Quarterly report, July--September, 1993  

SciTech Connect (OSTI)

This report cites task number followed by a brief statement of each task and the action taken this quarter. The tasks are: NEPA environmental information statement; coupled fluidized-bed bitumen recovery and coked sand combustion; water-based recovery of bitumen; rotary kiln process for recovery of bitumen and combustion of coke sand; recovery of bitumen from oil sands using fluidized bed reactors and combustion of spent sands in transport reactors; recovery of bitumen from oil sand and upgrading of bitumen by solvent extraction; catalytic and thermal upgrading of bitumens and bitumen-derived liquids; evaluation of Utah`s major oil sand deposits for the production of asphalt, high energy jet fuels, and other specialty products; development of mathematical models for bitumen recovery and processing; completion of the cost estimation study of the pilot plant restoration; development studies of equipment for three-product gravity separation of bitumen and sand; development studies of disposal of sand by conveying or pumping of high solids concentration sand-water slurries; and environmental studies of the North Salt Lake pilot plant rehabilitation and eventual operation and those environmental problems associated with eventual commercial products.

Oblad, A.G.; Bunger, J.W.; Dahlstrom, D.A.; Deo, M.D.; Fletcher, J.V.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1993-11-01T23:59:59.000Z

256

Determining sand-body geometries for waterflood reservoirs: Examples from Oklahoma  

SciTech Connect (OSTI)

Waterflood projects require an accurate knowledge of reservoir geometry and well-to-well continuity. However, sandstones with thin, multiple-pay zones can be extremely difficult to correlate with confidence. Two case studies of Pennsylvanian sandstones in Oklahoma illustrate how a model for the depositional history of such reservoirs can be an effective tool for determining reservoir continuity. In contrast, correlation criteria such as similar wireline log signatures and relative sand-body thicknesses are not reliable in many situations. In Southwest Logan field (Beaver County), 5 to 15-ft thick reservoir sands formed as shallow marine sand ridges. Their dimensions were approximated from height-to-width ratios of modern sand ridges. Then the reservoir sands were mapped using wireline logs and core data. Individual reservoir sands were approximately 1-2 km wide and stacked en echelon vertically. Thus, a line-drive waterflood pattern oriented parallel to the axes of the ridges is recommended. Tatums field (Carter County) consists of 5 to 50-ft thick sandstones deposited in various deltaic environments. Distributary channel sands have good continuity downdip, but are narrow and lenticular across depositional strike. Crevasse splay and other bay-fill sands were deposited marginal to the channels and are extremely discontinuous. This depositional model can be used to improve flood patterns for these sands, leading to improved sweep efficiency. In both examples, for effective mapping, the depositional facies models have been used to register reservoir quality and wireline log signatures.

Kreisa, R.D.; Pinero, E. (Mobil Research and Development Corp., Dallas, TX (USA))

1987-02-01T23:59:59.000Z

257

Non-Incineration Treatment to Reduce Benzene and VOC Emissions from Green Sand Molding Systems  

SciTech Connect (OSTI)

Final report describing laboratory, pilot scale and production scale evaluation of advanced oxidation systems for emissions and cost reduction in metal casting green sand systems.

Fred S. Cannon; Robert C. Voigt

2002-06-28T23:59:59.000Z

258

E-Print Network 3.0 - aeolian sand transport Sample Search Results  

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

transport pathways There are three main aeolian pathways... Wash, forming small coppice dunes. Contemporary sand transport within aeolian pathways is thus linked... and Utah...

259

Solvent extraction of oil shale or tar sands  

SciTech Connect (OSTI)

Oil shales or tar sands are extracted under non-thermally destructive conditions with a solvent liquid containing a compound having the general formula: R(N)-M(=O)(-R1)-N(-R2)-R3 where M is a carbon, sulfur or phosphorus atom, R/sup 2/ and R/sup 3/ are each a hydrogen atom or a lowe alkyl group, R and R/sup 1/ are each a lower alkyl group, another -N(-R2)-R3 group, a monocyclic arom group, or R/sup 1/ can be another -N(-R3)-M(=O)(-R1)-R(N) group or R/sup 1/ and R/sup 2/ together can represent the atoms necessary to close a heterocyclic ring, and n=1 where M=phosphorus and is otherwise 0, to substantially remove the non-fixed carbon content of the oil shale or tar sands, leaving a solid residue of fixed carbon, ash minerals, and non-extractable matter.

Stiller, A.H.; Hammack, R.W.; Sears, J.T.

1983-08-02T23:59:59.000Z

260

Potential turbine fuels from western Kentucky tar sand bitumen  

SciTech Connect (OSTI)

The declining quality of petroleum is a particular problem for aviation turbine fuels. Since these fuels are required to meet stringent corrosion, thermal stability and purity specification, very little in the way of contaminants or heteroatoms can be tolerated. However, heavier and more sour crude supplied result in lower straight-run turbine fuel yields, higher sulfur contents, and higher aromatic contents. While all turbine fuels were originally prepared from high quality stocks by distillation, many commercial and military fuels now require hydrotreatment to meet specifications. The work described in this program extrapolates these present trends to very heavy feedstocks. Tar sands bitumen and heavy crude oils are low API gravity, high viscosity hydrocarbonaceous materials commonly exhibiting high levels of heteroatomic species, high metals content and high levels of asphaltenes, plus water and solids not readily separated by conventional technology without dilution. Tar sands bitumen is highly cyclic with many polycyclic rings and naphthenic constituents. Sulfur is primarily in thiophenic structures, with nitrogen included in the ring structure. Asphaltenes are in high proportion, with a large amount of sulfur, nitrogen and metallic inclusions. Each of these characteristics represent specific concerns to refiners.

Moore, H.F.; Johnson, C.A.; Sutton, W.A.; Benslay, R.M. (Ashland Petroleum Co., KY (USA))

1987-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

www.ce.udel.edu/speakers ENVIRONMENTAL ENGINEERING  

E-Print Network [OSTI]

strategies" Dr. Angelia Seyfferth Assistant Professor Department of Plant and soil science UNIversITy Of DelAWAre MAR 08 "Tradeoffs in Water Quality Management: risk, economics and equity" Dr. Michael Kavanaugh-831-2442 "sustainable stormwater research" Dr. Robert G. Traver Director vIllANOvA CeNTer fOr The ADvANCeMeNT Of sUsTAINAbIlITy

Kirby, James T.

262

Approved Module Information for CE1102, 2014/5 Module Title/Name: Organic Chemistry for Engineers Module Code: CE1102  

E-Print Network [OSTI]

Approved Module Information for CE1102, 2014/5 Module Title/Name: Organic Chemistry for Engineers Module Code: CE1102 School: Engineering and Applied Science Module Type: Standard Module New Module chemistry. Part 2: Introduction to Laboratory Skills To enable the student to develop good practical skills

Neirotti, Juan Pablo

263

The Influence of Topology on Hydraulic Conductivity in a Sand-and-Gravel Aquifer  

E-Print Network [OSTI]

The Influence of Topology on Hydraulic Conductivity in a Sand-and-Gravel Aquifer by Roger H. Morin1 and tracer testing was conducted in a single well that penetrated a sand-and-gravel aquifer at the U such as pore geometry and connectivity, and grain size and packing configuration in regulating fluid flow

264

Artificial Sand Pictures -A Complex Systems Simulation Brad Pearce and Ken Hawick  

E-Print Network [OSTI]

Artificial Sand Pictures - A Complex Systems Simulation Brad Pearce and Ken Hawick Computer Science and layering in materials science. We con- struct a lattice-based simulation of a sand picture based around scheme is used to update pairs of neighboring cells using a Boltzmann like energy controlled probability

Hawick, Ken

265

Pour-point depression of crude oils by addition of tar sand bitumen  

SciTech Connect (OSTI)

A process is described for reducing the pour point of a crude oil which comprises adding a pour-point depressant selected from the group consisting of a raw tar sands bitumen and hydrotreated tar sands bitumen to form a blend possessing a relatively lower pour point.

Soderberg, D.J.

1988-03-01T23:59:59.000Z

266

Production of bitumen-derived hydrocarbon liquids from Utah's tar sands: Final report  

SciTech Connect (OSTI)

In previous work done on Utah's tar sands, it had been shown that the fluidized-bed pyrolysis of the sands to produce a bitumen-derived hydrocarbon liquid was feasible. The research and development work conducted in the small-scale equipment utilized as feed a number of samples from the various tar sand deposits of Utah elsewhere. The results from these studies in yields and quality of products and the operating experience gained strongly suggested that larger scale operation was in order to advance this technology. Accordingly, funding was obtained from the State of Utah through Mineral Leasing Funds administered by the College of Mines and Earth Sciences of the University of Utah to design and build a 4-1/2 inch diameter fluidized-bed pilot plant reactor with the necessary feeding and recovery equipment. This report covers the calibration and testing studies carried out on this equipment. The tests conducted with the Circle Cliffs tar sand ore gave good results. The equipment was found to operate as expected with this lean tar sand (less than 5% bitumen saturation). The hydrocarbon liquid yield with the Circle Cliffs tar sand was found to be greater in the pilot plant than it was in the small unit at comparable conditions. Following this work, the program called for an extensive run to be carried out on tar sands obtained from a large representative tar sand deposit to produce barrel quantities of liquid product. 10 refs., 45 figs., 11 tabs.

Oblad, A.G.; Hanson, F.V.

1988-07-01T23:59:59.000Z

267

Liquid phase oxidation kinetics of oil sands bitumen: Models for in situ combustion numerical simulators  

SciTech Connect (OSTI)

Multiresponse kinetic models are established for the low-temperature oxidation (LTO) reaction of Athabasca oil sands bitumen. The models provide adequate description of the overall rate of oxygen consumption and of the reactions of the liquid phase bitumen components. The LTO models are suitable for use in the in situ combustion numerical simulators of oil sands.

Adegbesan, K.O.; Donnelly, J.K.; Moore, R.G.; Bennion, D.W.

1986-08-01T23:59:59.000Z

268

Guide to Preparing SAND Reports and other communication products : quick reference guide.  

SciTech Connect (OSTI)

This Quick Reference Guide supplements the more complete Guide to Preparing SAND Reports and Other Communication Products. It provides limited guidance on how to prepare SAND Reports at Sandia National Laboratories. Users are directed to the in-depth guide for explanations of processes.

Not Available

2009-10-01T23:59:59.000Z

269

Effects of wastewater from an oil-sand-refining operation on survival, hematology, gill histology,  

E-Print Network [OSTI]

Effects of wastewater from an oil-sand-refining operation on survival, hematology, gill histology the effects of various types of wastewater produced in oil-sand-refining on the survival, hematology, gill. In con- trast, all fish did not survive a 28-day period in any of the wastewaters tested and, in some

Farrell, Anthony P.

270

Atmospheric Environment 36 (2002) 503509 Trend of acid rain and neutralization by yellow sand  

E-Print Network [OSTI]

Atmospheric Environment 36 (2002) 503­509 Trend of acid rain and neutralization by yellow sand 2001; accepted 11 April 2001 Abstract Acid rain and its neutralization by yellow sand in East Asia were was obtained. Firstly, the trend of the acid rain in East Asia due to the rapid increase of Chinese pollutants

271

Subcritical Creep Compaction of Quartz Sand at Diagenetic Conditions: Effects of Water and Grain Size  

E-Print Network [OSTI]

1 Subcritical Creep Compaction of Quartz Sand at Diagenetic Conditions: Effects of Water and Grain growth. Creep rates are explained by subcritical crack growth, as governed by water-silicate reactions through subcritical cracking and grain rearrangement of medium- grained, porous, wet quartz sands can

Chester, Frederick M.

272

NITROGEN REMOVAL FOR ON-SITE SEWAGE DISPOSAL: A RECIRCULATING SAND FILTER/ROCK TANK DESIGN  

E-Print Network [OSTI]

NITROGEN REMOVAL FOR ON-SITE SEWAGE DISPOSAL: A RECIRCULATING SAND FILTER/ROCK TANK DESIGN, C. G. McKiel ABSTRACT: The nitrogen removal abilities of recirculating sand filter/rock tank (RSF) systems and conventional septic tank/soil absorption trench systems were compared in a field laboratory

Gold, Art

273

Marine Geology 126(1995) 249-269 Longshore sand waves at Southampton Beach, New York  

E-Print Network [OSTI]

as early as 1939, few measurements of longshore sand waves have been made, and their dynamic behavior. The model shows wave refraction to be an important mechanism contributing to the longevity of longshore sand waves, acting to retard the otherwise expected diffusion. Model calculations of the migration

US Army Corps of Engineers

274

Investigation of in-situ low-temperature oxidation as a viable sand consolidation technique  

E-Print Network [OSTI]

of the most serious problems encountered in the petro- leum industry. Without proper measures to control development phase of a major project to develop a novel sand control technique that could overcome the technical and economic limitations associated with existing methods of sand control. The novel technique

Abu-Khamsin, Sidqi

275

Fractal dimension based sand ripple suppression for mine hunting with sidescan sonar  

E-Print Network [OSTI]

mine hunting. Manual inspection of such data can be a time consuming task that requires significant1 Fractal dimension based sand ripple suppression for mine hunting with sidescan sonar J. D. B. Nelson and N. G. Kingsbury Abstract--Sand ripples present a difficult challenge to current mine hunting

Nelson, James

276

Strongly correlated electron behavior : superconductivity and non-Fermi liquid behavior in Ce?-xRxColn?  

E-Print Network [OSTI]

T ( ) c T ( c ab La Ce Pr Nd PmSm Eu Gd Tb Dy Ho Er Tm YbSm x Ce La Tb La Ce Pr Nd PmSm Eu Gd Tb Dy Ho Er Tm Yb (b)g -1) J(J+1) Ce (a) La Ce Pr Nd PmSm Eu Gd Tb Dy Ho Er Tm Yb

Gonzales, Eileen

2009-01-01T23:59:59.000Z

277

Tight Oklahoma gas sands remain an attractive play  

SciTech Connect (OSTI)

The Cherokee tight gas sands of Oklahoma remain an attractive play because of improvements in drilling and completion practices and actions by the Oklahoma Corporation Commission (OCC) that allow separate allowables for new wells. The expired federal tax credits for tight gas wells have not been the only reason for increased activity. Since decontrol of most regulated gas pricing and since 1986, the number of wells drilled and gas production per well have been increasing in the cherokee area while overall drilling in Oklahoma has decreased. These conclusions are based on wells as categorized by permit date and not by the spud, completion, or first production date. A few wells outside but adjacent to the Cherokee area may have been included, although, their impact on the conclusions is considered nominal. The paper discusses the tight gas credit, proration units, the concept of separate allowables, costs, completion efficiency, and the economic outlook for this area.

Cartwright, G.L. [Marathon Oil Co., Oklahoma City, OK (United States)

1995-04-24T23:59:59.000Z

278

Characterization of various bitumen samples from tar sands  

SciTech Connect (OSTI)

The authors have investigated twenty three bitumen samples obtained using different separation methods such as: ultracentrifugation, Dean-Stark extraction, solvent extraction employing vigorous agitation, hot water separation and the Solvent Extraction Spherical Agglomeration technique. These samples were extracted from oil sand feedstocks of different grades, Suncor sludge pond tailings and mineral agglomerates obtained form the Solvent Extraction Spherical Agglomeration process. All of the bitumen samples were examined on a comparative basis using various analytical techniques. These included: fractionation into asphaltenes and maltenes: elemental analyses; molecular weight determination using vapour pressure osmometry and gel permeation chromatography, infrared, proton and /sup 13/C nuclear magnetic resonance spectroscopy. Proton /sup 13/C n.m.r. spectroscopic data were used to determine the distribution of various types of hydrogens and carbons in the samples. These data were also used to derive various molecular parameters in order to investigate average molecular structures of different bitumen samples and some of their asphaltene fractions.

Majid, A.; Bornais, J.; Hutchison, R.A. (National Research Council of Canada, Ottawa, ON (Canada). Div. of Chemistry)

1989-01-01T23:59:59.000Z

279

Hydroconversion of heavy oils. [Residue of tar sand bitumen distillation  

SciTech Connect (OSTI)

A method is described for hydroconversion of feedstocks consisting essentially of at least one heavy hydrocarbon oil selected from the group consisting of residue of petroleum oil distillation and the residue of tar sand bitumen distillation to enhance the recovery of 350/sup 0/-650/sup 0/F boiling product fraction. The method comprises treating such feed stock with hydrogen at superatmospheric pressure and in the presence of finely divided active hydrogenation catalyst in consecutive reaction stages. An initial reaction stage is carried out at a temperature in the range of 780/sup 0/-825/sup 0/F, and a subsequent reaction stage is directly carried out after the initial reaction stage at a higher temperature in the range of 800/sup 0/F-860/sup 0/F, the temperature of the subsequent reaction stage being at least 20/sup 0/F higher than that of the initial reaction stage.

Garg, D.

1986-08-19T23:59:59.000Z

280

Characterization of various bitumen samples from tar sands  

SciTech Connect (OSTI)

Bitumen is a complex mixture of a large of number of organic molecules. The composition of bitumen and the nature of their various individual components has been the subject of considerable research during the past two decades. Various modes of extraction of bitumen from oil sands such as heat, extreme mechanical force, chemical agents and solvents could significantly affect some properties of bitumen. Variations in the composition of the oil sands feed stock could also affect the properties of the extracted bitumen. However, the most commonly used analytical techniques such as elemental analyses, density and viscosity cannot detect small compositional differences in the various samples of bitumen. With developments in instrumentation and techniques the structural characterization of complex petroleum fractions employing high resolution proton and 13/sub C/ nuclear magnetic resonance (NMR) spectroscopy is becoming more popular. The parameters describe structural features, such as the fraction of carbon that is aromatic, the number and length of alkyl substituents in an average molecule, the percentage of aromatic carbons that are substituted and the number of aromatic rings per molecule. Given sufficient data these parameters can provide useful characterization of a hydrocarbon mixture. In the authors' laboratories, the authors have collected a number of bitumen samples obtained from different feedstocks employing a variety of extraction techniques. It was of interest to investigate any differences between these samples from different sources. This paper reports a detailed investigation of average structural parameters by the combined use of elemental analyses, molecular weight determinations and proton and 13/sub C/NMR spectroscopy. A total of twenty three butimen samples have been studied.

Majid, A.; Bornais, J.; Hutchison, R.A.

1988-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

Miocene sand distribution of the South Marsh Island and the Vermillion area, offshore Louisiana, Gulf of Mexico  

E-Print Network [OSTI]

This study investigates the Miocene sand distribution of offihore central Louisiana, Gulf of Mexico. Investigating the distribution of this sand, which plays an important role as a reservoir for oil and gas, contributes to petroleum exploration...

Kim, Jingoo

1997-01-01T23:59:59.000Z

282

International Association for Energy Economics ? | 37 Canadian Oil Sands: Current Projects and Plans, and Long-term Prospects  

E-Print Network [OSTI]

Oil sands reserves are found in several locations around the world, including Venezuela, USA, and the Russian Federation. The largest oil sands operations are in the province of Alberta, Canada (Ordorica-

Yuliya Pidlisna

283

Subcritical compaction and yielding of granular quartz sand Stephen L. Karner*, Frederick M. Chester, Andreas K. Kronenberg, Judith S. Chester  

E-Print Network [OSTI]

Subcritical compaction and yielding of granular quartz sand Stephen L. Karner*, Frederick M October 2003 Abstract Cylindrical samples of water-saturated, initially loose, St. Peter quartz sand were

Chester, Frederick M.

284

Alberta bound : the interface between Alberta's environmental policies and the environmental management of three Albertan oil sands companies  

E-Print Network [OSTI]

The Athabasca Oil Sands, located in northeastern Alberta, Canada, were for many years anomalous. Two oil sands operators developed their extraction techniques for 30 years, refining their technology before production became ...

Lemphers, Nathan C

2009-01-01T23:59:59.000Z

285

Polymer treatments for D Sand water injection wells: Sooner D Sand Unit Weld County, Colorado. Final report, April 1997  

SciTech Connect (OSTI)

Polymer-gel treatments in injection wells were evaluated for improving sweep efficiency in the D Sandstone reservoir at the Sooner Unit, Weld County, Colorado. Polymer treatments of injection wells at the Sooner Unit were expected to improve ultimate recovery by 1.0 percent of original-oil-in-place of 70,000 bbl of oil. The Sooner D Sand Unit was a demonstration project under the US Department of Energy Class I Oil Program from which extensive reservoir data and characterization were obtained. Thus, successful application of polymer-gel treatments at the Sooner Unit would be a good case-history example for other operators of waterfloods in Cretaceous sandstone reservoirs in the Denver Basin.

Cannon, T.J.

1998-10-01T23:59:59.000Z

286

Whirlpool: Order (2014-CE-21010) | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf TheViolations | Department of Energyis EIA? Andof4-CE-21010)

287

LG: Proposed Penalty (2015-CE-14022) | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensionalthe10 DOEWashington, DCKickoffLDV5-CE-14022) LG: Proposed Penalty

288

Sunpentown: Order (2012-CE-1505) | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of Energy Strain Rate4 RecoveryJulyEvaluationOffi ce U.S. DepartmentOrder

289

Preliminary studies on the recovery of bitumen from Nigerian tar sands: I. Beneficiation and solvent extraction  

SciTech Connect (OSTI)

Solvent extraction of bitumen from Nigerian tar sands using toluene has been investigated. Pulverization of the tar sands followed by agglomeration in a mechanical shaker resulted in spherical agglomerates having higher bitumen contents than the mined tar sand. The extent of beneficiation was 4% and 19% for the high grade and low grade sands, respectively. Temperature, agitation, and tar sand/solvent (S/L) ratios were found to be significant variables affecting the dissolution of bitumen from the sand. S/L ratio has the greatest effect on extraction efficiency. The rate of bitumen extraction, expressed as extractability eta* showed great dependence on agitation. About 16- and 15-fold increases in extractability were obtained for S/L ratios of 1/20 and 1/5 respectively for a 2.8 fold increase in agitation. At the initial stages of extraction, asphaltene content of the bitumen extracted at 50/sup 0/C was less than that in the bitumen extracted at 25/sup 0/C. This finding could have significant implications for the overall economics of upgrading processes. A high extraction efficiency of about 99% was obtained with stagewise extraction at high tar sand/solvent ratios.

Ademodi, B.; Oshinowo, T.; Sanni, S.A.; Dawodu, O.F.

1987-01-01T23:59:59.000Z

290

Ethanol Steam Reforming on Co/CeO2: The Effect of ZnO Promoter  

SciTech Connect (OSTI)

A series of ZnO promoted Co/CeO2 catalysts were synthesized and characterized using XRD, TEM, H2-TPR, CO chemisorption, O2-TPO, IR-Py, and CO2-TPD. The effects of ZnO on the catalytic performances of Co/CeO2 were studied in ethanol steam reforming. It was found that the addition of ZnO facilitated the oxidation of Co0 via enhanced oxygen mobility of the CeO2 support which decreased the activity of Co/CeO2 in CC bond cleavage of ethanol. 3 wt% ZnO promoted Co/CeO2 exhibited minimum CO and CH4 selectivity and maximum CO2 selectivity. This resulted from the combined effects of the following factors with increasing ZnO loading: (1) enhanced oxygen mobility of CeO2 facilitated the oxidation of CHx and CO to form CO2; (2) increased ZnO coverage on CeO2 surface reduced the interaction between CHx/CO and Co/CeO2; and (3) suppressed CO adsorption on Co0 reduced CO oxidation rate to form CO2. In addition, the addition of ZnO also modified the surface acidity and basicity of CeO2, which consequently affected the C2C4 product distributions.

Davidson, Stephen; Sun, Junming; Wang, Yong

2013-12-02T23:59:59.000Z

291

CeBr3 as a High-Resolution Gamma-Ray Detector  

SciTech Connect (OSTI)

Lanthanum halide (LaBr3:Ce) scintillators have been well-documented as high-resolution gamma-ray detectors that are operated at room temperature. These scintillators have better resolution (<3% at 662 keV) relative to sodium iodide (NaI(Tl)) scintillators (7% at 662 keV), but the naturally occurring radioactive isotope 138La causes self-activity in the crystal that occludes portions of the gamma-ray spectrum. This selfactivity limits the use of LaBr3:Ce in high-sensitivity applications. Cerium, the dopant in the LaBr3:Ce matrix possesses useful scintillation properties, and its selfactivity is on the order of 3750 times less than La; however, Ce has not been fully characterized as the chief component in a scintillation detector. This work investigated Ce as the key scintillation matrix component in a scintillation detector with the hypothesis that CeBr3 promises energy resolution comparable or superior to LaBr3:Ce. The researchers involved with this work believe that CeBr3 may be the answer to obtaining high-temperature, high-resolution spectra with greater sensitivity than LaBr3:Ce.

Michael Reed, Paul Guss, Christopher Contreras

2008-11-13T23:59:59.000Z

292

Capillary electrophoresis-fluorescence line narrowing system (CE-FLNS) for on-line structural characterization  

DOE Patents [OSTI]

Capillary electrophoresis (CE) is interfaced with low temperature fluorescence line-narrowing (FLN) spectroscopy for on-line structural characterization of separated molecular analytes. 21 figs.

Jankowiak, R.J.; Small, G.J.; Shields, P.A.

1999-04-27T23:59:59.000Z

293

The application of triaxial compression tests to the design of sand-asphalt paving mixtures  

E-Print Network [OSTI]

' this fact, the f1ne yecxk was chosen as the aggregate to be used in all sand. -asphalt miztures tested 1n this pro/oct. It must be emphasise4. , that no sand sample, Lxas tested, mox ~ than ) " x i x . . y . * once during ths analpsis of the sands... shearing strength increases as the amount of mineral filler increases, thu ~ confirming the theory that the increase 1n surface area of the aggregate caused by the addition of dust must be taken ~ care of by an increase 1n the amount of bitumen used...

Ritter, Leo J

2012-06-07T23:59:59.000Z

294

The Complex Core Level Spectra of CeO2: An Analysis in Terms of Atomic and Charge Transfer Effects  

SciTech Connect (OSTI)

We present a rigorous parameter-free theoretical treatment of the Ce 4s and 5s photoelectron spectra of CeO2. In the currently accepted model the satellite structure in the photoelectron spectra is explained in terms of a mixed valence (Ce 4f0 O 2p6, Ce 4f1 O 2p5, and Ce 4f2 O 2p4) con?guration. We show that charge transfer (CT) into Ce 5d as well as con?gurations involving intra-atomic movement of charge must be considered in addition and compute their contributions to the spectra.

Bagus, Paul S.; Nelin, Constance J.; Ilton, Eugene S.; Baron, Martin; Abbott, Heather; Primorac, Elena; Kuhlenbeck, Helmut; Shaikhutdinov, Shamil; Freund, Hans-Joachim

2010-03-05T23:59:59.000Z

295

Guide to preparing SAND reports and other communication products.  

SciTech Connect (OSTI)

This guide describes the R&A process, Common Look and Feel requirements, and preparation and publishing procedures for communication products at Sandia National Laboratories. Samples of forms and examples of published communications products are provided. This guide takes advantage of the wealth of material now available on the Web as a resource. Therefore, it is best viewed as an electronic document. If some of the illustrations are too small to view comfortably, you can enlarge them on the screen as needed. The format of this document is considerably different than that usually expected of a SAND Report. It was selected to permit the large number of illustrations and examples to be placed closer to the text that references them. In the case of forms, covers, and other items that are included as examples, a link to the Web is provided so that you can access the items and download them for use. This guide details the processes for producing a variety of communication products at Sandia National Laboratories. Figure I-1 shows the general publication development process. Because extensive supplemental material is available from Sandia on the internal web or from external sources (Table I-1), the guide has been shortened to make it easy to find information that you need.

Not Available

2011-09-01T23:59:59.000Z

296

Western Gas Sands Project. Status report, April-June 1982  

SciTech Connect (OSTI)

The progress during April, May and June 1982, of government-sponsored projects to increase gas production from low permeability gas sands of the Western United States, is summarized in this edition of the WGSP Quarterly Status Report. In an effort to eliminate wellbore storage during the testing of tight reservoirs and substantially reduce time and cost of testing, CER Corporation is investigating downhole shut-off to develop a shut-off tool. During the quarter, the University of Oklahoma completed the two-dimensional lenticular well simulator model and submitted a final report. At Lawrence Livermore National Laboratories, work is complete on the 2-D crack model and work has begun on developing a pseudo 3-D crack model. Preparations have begun at Los Alamos National Laboratory to test the 6-in. permanent magnet pre-prototype tool in the American Petroleum Institute test pit at the University of Houston. At Sandia National Laboratories, an analytical version of the Surface Electrical Potential (SEP) mathematical model has been completed. The data provided by DOE Well Test Facility's drill stem test (DST) of MWX-1 indicated wellbore storage was predominant during the buildup period of the test and essentially masks the pressure transient normally used in the DST analysis. For the Multi-Well Experiment program, cased hole logging, directional surveys and two geophysical surveys were accomplished this quarter. 38 figures.

Not Available

1983-01-01T23:59:59.000Z

297

Hydrotreating the native bitumen from the Whiterocks tar sand deposit  

SciTech Connect (OSTI)

The bitumen from the Whiterocks oil sand deposit in the Uinta Basin of eastern Utah was hydrotreated in a fixed-bed reactor to determine the extent of upgrading as a function of process operating variables. The process variables investigated included reactor pressure (11.2--16.7 MPa); reactor temperature (641--712 K) and liquid hourly space velocity (0.19--0.77 h{sup {minus}1}). The hydrogen/oil ratio, 890 m{sup 3} m{sup {minus}3} was fixed in all experiments. A sulphided Ni-Mo on alumina hydrodenitrogenation catalyst was used in these studies. The deactivation of the catalyst, 0.2 {degree}C/day, was monitored by thedecline in the API gravity of the total liquid product with time on-stream at a standard set of conditions. The effect of temperature, WHSV, and pressure on denitrogenation, desulphurization, and metals removalwere studied and apparent kinetic parameters determined. The effect of process variables on residue conversion and Conradson carbon residue reduction were also investigated.

Longstaff, D.C.; Deo, M.D.; Hanson, F.V.

1993-03-01T23:59:59.000Z

298

Characterization and potential utilization of Whiterocks (Utah) tar sand bitumen  

SciTech Connect (OSTI)

This paper reports on the native Whiterocks (Utah) tar sand bitumen that was separated into several boiling range fractions for detailed analysis and characterization. The lighter fraction (477-617 K) was evaluated for use as a transportation fuel and the residues ({gt}617 K and {gt}728 K) were evaluated for use as road asphalts. The 617 K plus residue from the Whiterocks bitumen can be classified as a viscosity grade AC-10 asphalt whereas the 728 K plus residue failed to meet asphalt specifications. Apart from the asphalt specification tests, several sophisticated techniques were used to characterize these fractions. The detailed structure of the low molecular weight portions of Whiterocks bitumen (477-617 K and 617-728 K) was determined by combined GC-MS. Several physical properties were also measured to evaluate the potential of the 477-617 K fraction as a high density/energy aviation turbine fuel. This lower molecular weight fraction of the bitumen contained predominantly naphthenic hydrocarbons and lesser concentrations of aromatic hydrocarbons. This was confirmed by the FTIR spectra and by the GC-MS analyses. As a result, the 477-617 K fraction appeared to be an excellent candidate as a feedstock for the production of high density, aviation turbine fuels following mild hydrotreating.

Tsai, C.H.; Deo, M.D.; Hanson, F.V.; Oblad, A.G. (Lab. of Coal Science, Synthetic Fuels and Catalysis, Dept. of Fuels Engineering, Univ. of Utah, Salt Lake City, UT (US))

1991-01-01T23:59:59.000Z

299

Catalyst poisoning during tar-sands bitumen upgrading  

SciTech Connect (OSTI)

A number of hydrotreating catalysts are used in commercial heavy oil upgrading facilities. One of these, a CoO/MoO{sub 3}/Al{sub 2}O{sub 3} catalyst has been evaluated in a pilot plant CSTR for Tar-Sands Bitumen upgrading. Following its use in a test of 200 hours duration, the catalyst was removed, de-oiled, regenerated by air-calcination to remove the coke, and then re-tested. Samples of the coked, fresh and regenerated catalyst were each examined using surface analytical techniques. ESCA and SIMS analysis of the coked and regenerated catalyst samples show, as expected, significant contamination of the catalyst with Ni and V. In addition, the SIMS analysis clearly reveals that the edges of the catalyst pellets are rich in Ca, Mg and Fe while the Ni, V and coke are evenly distributed. Regeneration of the catalyst by calcination removes the carbonaceous material but appears not to change the distribution of the metal contaminants. Retesting of the regenerated catalyst shows a performance similar to that of the fresh catalyst. These data serve to support the view that catalyst deactivation during early use is not due to the skin of Ca and Mg on the pellets but rather via the poisoning of active sites by carbonaceous species.

Carruthers, J.D.; Brinen, J.S.; Komar, D.A.; Greenhouse, S. [CYTEC Industries, Stamford, CT (United States)

1994-12-31T23:59:59.000Z

300

Hydrotreating the native bitumen from the Whiterocks tar sand deposit  

SciTech Connect (OSTI)

The bitumen from the Whiterocks oil sand deposit in the Uinta Basin of eastern Utah was hydrotreated in a fixed-bed reactor to determine the extent of upgrading as a function of process operating variables. The process variables investigated included reactor pressure (11.2--16.7 MPa); reactor temperature (641--712 K) and liquid hourly space velocity (0.19--0.77 h[sup [minus]1]). The hydrogen/oil ratio, 890 m[sup 3] m[sup [minus]3] was fixed in all experiments. A sulphided Ni-Mo on alumina hydrodenitrogenation catalyst was used in these studies. The deactivation of the catalyst, 0.2 [degree]C/day, was monitored by thedecline in the API gravity of the total liquid product with time on-stream at a standard set of conditions. The effect of temperature, WHSV, and pressure on denitrogenation, desulphurization, and metals removalwere studied and apparent kinetic parameters determined. The effect of process variables on residue conversion and Conradson carbon residue reduction were also investigated.

Longstaff, D.C.; Deo, M.D.; Hanson, F.V.

1993-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

CAVITY LIKE COMPLETIONS IN WEAK SANDS PREFERRED UPSTREAM MANAGEMENT PRACTICES  

SciTech Connect (OSTI)

The technology referred to as Cavity Like Completions (CLC) offers a new technique to complete wells in friable and unconsolidated sands. A successfully designed CLC provides significant increases in well PI (performance index) at lower costs than alternative completion techniques. CLC technology is being developed and documented by a partnership of major oil and gas companies through a GPRI (Global Petroleum Research Institute) joint venture. Through the DOE-funded PUMP program, the experiences of the members of the joint venture will be described for other oil and gas producing companies. To date six examples of CLC completions have been investigated by the JV. The project was performed to introduce a new type of completion (or recompletion) technique to the industry that, in many cases, offers a more cost effective method to produce oil and gas from friable reservoirs. The project's scope of work included: (1) Further develop theory, laboratory and field data into a unified model to predict performance of cavity completion; (2) Perform at least one well test for cavity completion (well provided by one of the sponsor companies); (3) Provide summary of geo-mechanical models for PI increase; and (4) Develop guidelines to evaluate success of potential cavity completion. The project tracks the experiences of a joint industry consortium (GPRI No. 17) over a three year period and compiles results of the activities of this group.

Ian Palmer; John McLennan

2004-04-30T23:59:59.000Z

302

Interaction of carbon monoxide with oxygen in the adsorbed layer on Pd, Ce, Pd-Ce catalysts supported on /gamma/-Al/sub 2/O/sub 3/  

SciTech Connect (OSTI)

The adsorption of CO and the interaction of CO/sub ads/ with O/sub 2/ on Pd, Ce, and Pd-Ce//gamma/-Al/sub 2/O/sub 3/ (0.5 wt. % Pd, 2.0 wt. % Ce) has been studied using the methods of IR spectroscopy and differential scanning calorimetry. The identity of the adsorbed CO complexes, the temperature ranges over which they desorb, and their reactivity with O/sub 2/ have been established. The interaction of bridging and carbonate - carboxylate CO complexes and carbon (disproportionation and dissociation products) with O/sub 2/ on Pd and Pd-Ce catalysts is preceded by the coadsorption of oxygen and the evolution of heat. During the oxidation of CO, autooscillation, heat evolution, and the concentration of oxygen in the flow are observed.

Savel'eva, G.A.; Sass, A.S.; Speranskaya, G.V.; Tenchev, K.K.; Petrov, L.A.; Vozdvizhenskii, V.F.; Galeev, T.K.; Popova, N.M.

1989-01-01T23:59:59.000Z

303

Characterization Report on Sand, Slag, and Crucible Residues and on Fluoride Residues  

SciTech Connect (OSTI)

This paper reports on the chemical characterization of the sand, slag, and crucible (SS and C) residues and the fluoride residues that may be shipped from the Rocky Flats Environmental Technology Site (RFETS) to Savannah River Site (SRS).

Murray, A.M.

1999-02-10T23:59:59.000Z

304

Integration of High Temperature Gas-cooled Reactor Technology with Oil Sands Processes  

SciTech Connect (OSTI)

This paper summarizes an evaluation of siting an HTGR plant in a remote area supplying steam, electricity and high temperature gas for recovery and upgrading of unconventional crude oil from oil sands. The area selected for this evaluation is the Alberta Canada oil sands. This is a very fertile and active area for bitumen recovery and upgrading with significant quantities piped to refineries in Canada and the U.S Additionally data on the energy consumption and other factors that are required to complete the evaluation of HTGR application is readily available in the public domain. There is also interest by the Alberta oil sands producers (OSP) in identifying alternative energy sources for their operations. It should be noted, however, that the results of this evaluation could be applied to any similar oil sands area.

L.E. Demick

2011-10-01T23:59:59.000Z

305

In Situ Groundwater Arsenic Removal Using Iron Oxide-Coated Sand  

E-Print Network [OSTI]

the sand filter suggest that both reversible adsorption and irreversible precipitation are responsible for removing arsenic from the water. Unlike conventional excavate-and-fill permeable reactive barriers, the treatment capacity of our in situ created...

Yu, Hongxu

2010-10-12T23:59:59.000Z

306

Developing a tight gas sand advisor for completion and stimulation in tight gas reservoirs worldwide  

E-Print Network [OSTI]

and experience about completion and stimulation technologies used in TGS reservoirs. We developed the principal design and two modules of a computer program called Tight Gas Sand Advisor (TGS Advisor), which can be used to assist engineers in making decisions...

Bogatchev, Kirill Y.

2009-05-15T23:59:59.000Z

307

Spatiotemporal model for the progression of sand blowouts Hezi Yizhaq1  

E-Print Network [OSTI]

, Noam Levin2 and Haim Tsoar3 1 Solar energy and Environmental Physics, BIDR, Ben-Gurion University in Australia. Introduction. ­ Sand dunes cover a vast area of Earth land surface. Their formation and dynamics

Ashkenazy, Yossi "Yosef"

308

Ultrasonic reactor for the recovery of bitumen from tar sand: Final report  

SciTech Connect (OSTI)

A bench scale ultrasonic reactor was designed for testing to determine its feasiblity for enhancing the dissolution and extraction of bitumen from Utah tar sands using both solvent and water as a liquid medium for dissolution and extraction and to compare the results. The ultrasonic reactor did not significantly enhance dissolution of bitumen into the sovlent. Ultrasonic energy did appear to enhance intraparticle diffusion in consolidated tar sand. The rate of disengagement of the bitumen from the sand in hot water extraction was slightly enhanced and a continuous flow unit may show promise for the recovery of bitumen from tar sands. Assuming that high recovery efficiency can be obtained, the energy requirements for the ultrasonic reactor did not appear to be prohibitive. 5 figs., 3 tabs.

Bunger, J.W.; Miller, J.D.; Johnson, S.A.

1987-07-28T23:59:59.000Z

309

Study of the Behavior of a Commercial Scale Inhibitor on Silica Sand  

E-Print Network [OSTI]

squeeze lifetimes in order to minimize the number of treatments, thus reducing the cost. The objective of this thesis is to study the adsorption of the commercial scale inhibitor SI onto silica sand. By investigating this intrinsic phenomenon, an optimized...

Vaca Bustamante, Victor

2010-12-14T23:59:59.000Z

310

Bionomics of phlebotomine sand flies (Diptera: Psychodidae) in the province of Al-Baha, Saudi Arabia  

E-Print Network [OSTI]

The bionomics of phlebotomine sand flies (Diptera: Psychodidae) were studied for two successive years (January 1996-December 1997) at 12 collecting stations representing six sectors of the province of Al-Baha, Saudi Arabia. The predominant species...

Doha, Said Abdallah; Samy, Abdallah Mohammed

2010-11-01T23:59:59.000Z

311

Stratigraphic Heterogeneity of a Holocene Ooid Tidal Sand Shoal: Lily Bank, Bahamas  

E-Print Network [OSTI]

A central challenge in sedimentary geology is understanding three-dimensional architectural variability, and how it might be predicted. Ooid sand shoals, present in the stratigraphic record from Archean to recent, represent an economically important...

Sparks, Andrew

2011-08-31T23:59:59.000Z

312

The evaluation of waterfrac technology in low-permeability gas sands in the East Texas basin  

E-Print Network [OSTI]

The petroleum engineering literature clearly shows that large proppant volumes and concentrations are required to effectively stimulate low-permeability gas sands. To pump large proppant concentrations, one must use a viscous fluid. However, many...

Tschirhart, Nicholas Ray

2005-11-01T23:59:59.000Z

313

Stress Corrosion Cracking and Delayed Increase in Penetration Resistance after Dynamic Compaction of Sand  

E-Print Network [OSTI]

Stress Corrosion Cracking and Delayed Increase in Penetration Resistance after Dynamic Compaction on the process of stress corrosion cracking of the micro-morphological features on the surface of the sand grains

Michalowski, Radoslaw L.

314

Technologies, markets and challenges for development of the Canadian Oil Sands industry  

E-Print Network [OSTI]

This paper provides an overview of the current status of development of the Canadian oil sands industry, and considers possible paths of further development. We outline the key technology alternatives, critical resource ...

Lacombe, Romain H.

2007-01-01T23:59:59.000Z

315

Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands...  

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

Research Council Canada Ottawa, Ontario, Canada Emissions from Heavy-Duty Diesel Engine with EGR using Oil Sands Derived Fuels W. Stuart Neill 9 th DEER Conference, Newport, Rhode...

316

CO Oxidation at the Interface of Au Nanoclusters and the Stepped-CeO2(111) Surface  

SciTech Connect (OSTI)

To reveal the richer chemistry of CO oxidation by CeO2 supported Au Nanoclusters NCs)/Nanoparticles, we design a Au12 supported on a stepped-CeO2 model (Au/CeO2-step) and study various kinds of CO oxidation mechanisms at the interface of the Au/CeO2-step: oxygen spillover from the CeO2 to the Au NCs;2 CO oxidation by the O2 bound to the Au-Ce3+ interface;3 and CO oxidation by the Mars-van Krevelen (M-vK) mechanism.4 DFT+U calculations show that lattice oxygen at the CeO2 step edge oxidizes CO bound to Au NCs by the M-vK mechanism. CO2 desorption determines the rate of CO oxidation and the vacancy formation energy (Evac) is a reactivity descriptor for CO oxidation. The maximum Evac that insures spontaneous CO2 production is higher for the Au/CeO2-step than the Au/CeO2-surface suggesting that the CeO2-step is a better supporting material than the CeO2-surface for CO oxidation by the Au/CeO2. Our results also suggest that for CO oxidation by Au NCs supported on nano- or meso-structured CeO2, which is the case of industrial catalysts, the M-vK mechanism accounts for a large portion of the total activity.

Kim H. Y.; Henkelman, G.

2013-01-14T23:59:59.000Z

317

Atomistic Study of Doped BaCeO3: Dopant Site-Selectivity and Cation Nonstoichiometry  

E-Print Network [OSTI]

of Technology, Pasadena, California 91125, and Materials Chemistry Group, Chemistry DiVision, Uni, the trivalent dopants are assumed to occupy the Ce4+ -site, which introduces oxygen vacancies partitioning over both Ba and Ce sites. Such partitioning reduces the concentration of oxygen vacancies, which

Haile, Sossina M.

318

Investigation of sand consolidation using steam for the Tar Zone, Wilmington field, California  

E-Print Network [OSTI]

during the steamflood project. Assuming that the residual liquid phase and the vapor phase partition in the wellbore and enter separate sand zones in a reservoir, the results suggest that permeability reduction in sands contacted by residual liquid... good engineer. I also wish to thank Dr. Renald N. Guillemette, research scientist at the Department of Geology and Geophysics for all his help and innovative suggestions during the analysis made in the electron microprobe laboratory. This project...

Nilsen, Knut Arild

1999-01-01T23:59:59.000Z

319

Effect of sediment concentration on artificial well recharge in a fine sand aquifer  

E-Print Network [OSTI]

EFFECT OF SEDIMENT CONCENTRATION ON ARTIFICIAL WELL RECHARGE IN A FINE SAND AQUIFER A Thesis By MD. ATAUR RAHMAN Submitted to the Graduate College of the Texas ASM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE May 1968 Major Subject: Agricultural Engineering EFFECT OF SEDIMENT CONCENTRATION ON ARTIFICIAL WELL RECHARGE IN A FINE SAND AqUIFER A Thesis By MD. ATAUR RAHMAN Approved as to style and content by: (Chairman of ommitt ) ( a o...

Rahman, Mohammed Ataur

1968-01-01T23:59:59.000Z

320

Developing a tight gas sand advisor for completion and stimulation in tight gas reservoirs worldwide  

E-Print Network [OSTI]

DEVELOPING A TIGHT GAS SAND ADVISOR FOR COMPLETION AND STIMULATION IN TIGHT GAS RESERVOIRS WORLDWIDE A Thesis by KIRILL BOGATCHEV Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 2007 Major Subject: Petroleum Engineering DEVELOPING A TIGHT GAS SAND ADVISOR FOR COMPLETION AND STIMULATION IN TIGHT GAS RESERVOIRS WORLDWIDE A Thesis by KIRILL...

Bogatchev, Kirill Y

2008-10-10T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

An investigation of the behavior of radioactivated surfactants in linear, unconsolidated sand systems  

E-Print Network [OSTI]

AN INVESTIGATION OF THE BEHAVIOR OF RADIOACTIVATED SURFACTANTS IN LINEAR, UNCONSOLIDATED SAND SYSTEMS A Thesis RAMON T. RIVERO Submitted to the Graduate College of the Texas A k M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE January 1964 Ma )or Sub]ect: Petroleum Engineering AN INVESTIGATION OF THE BEHAVIOR OF RADIOACTIVATFD SURFACTANTS IN LINEAR, UNCONSOLIDATED SAND SYSTEMS A Thesis by RAMON T ~ RIVERO Approved as to style and content by...

Rivero, Ramon T

2012-06-07T23:59:59.000Z

322

Experimental investigation of sand consolidation using high-temperature alkaline solution  

E-Print Network [OSTI]

EXPERIMENTAL INVESTIGATION OF SAND CONSOLIDATION USING HIGH-TEMPERATURE ALKALINE SOLUTION A Thesis by FIDEL ENRIQUE MORENO Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE December 2000 Malor Subject: Petroleum Engmeering EXPERIMENTAL INVESTIGATION OF SAND CONSOLIDATION USING HIGH- TEMPERATURE ALKALINE SOLUTION A Thesis by FIDEL ENRIQUE MORENO ROMERO Submitted to the Office of Graduate...

Moreno Romero, Fidel Enrique

2000-01-01T23:59:59.000Z

323

Origin and distribution of sand types, northeastern U.S. Atlantic continental shelf  

E-Print Network [OSTI]

. 28 Map of the northeastern U. S. Atlantic continental margin showing locations of samples used in this study. 31 Plot of relative entropy values for harmonics 2 through 24 for samples from the northeastern U. S. Atlantic continental shelf. 36... Shape frequency distributions for harmonics 2, 19, 21, and 23 of the three grain shape types. . . . . . . . . . . . . . . . 37 SEM photographs of Type 1 fine quartz sands (coastal plain-derived). SEM photographs of Type 2 fine quartz sands (glacial...

Leschak, Pamela

1985-01-01T23:59:59.000Z

324

The effect of variable permeability on a two stage sand consolidation technique  

E-Print Network [OSTI]

that was mixed with the resin to reduce viscosity. This develop- ment. reduced the risk of fracturing the formation due to excessive pump pressures from injecting a high viscosity fluid. Hower9 determined that the main reasons for consolida- tion failure..., W. L. : "A New Low-Viscosity, Epoxy Sand-Consolidation Process, " Journal of Petroleum Technolo (December 1978) 1805- 1812. Hower, W. F. and Brown, W: "Large Scale Laboratory Investi- gation of Sand Consolidation Techniques, " Journal...

Tobola, David Philip

1985-01-01T23:59:59.000Z

325

Paleontological overview of oil shale and tar sands areas in Colorado, Utah, and Wyoming.  

SciTech Connect (OSTI)

In August 2005, the U.S. Congress enacted the Energy Policy Act of 2005, Public Law 109-58. In Section 369 of this Act, also known as the ''Oil Shale, Tar Sands, and Other Strategic Unconventional Fuels Act of 2005,'' Congress declared that oil shale and tar sands (and other unconventional fuels) are strategically important domestic energy resources that should be developed to reduce the nation's growing dependence on oil from politically and economically unstable foreign sources. In addition, Congress declared that both research- and commercial-scale development of oil shale and tar sands should (1) be conducted in an environmentally sound manner using management practices that will minimize potential impacts, (2) occur with an emphasis on sustainability, and (3) benefit the United States while taking into account concerns of the affected states and communities. To support this declaration of policy, Congress directed the Secretary of the Interior to undertake a series of steps, several of which are directly related to the development of a commercial leasing program for oil shale and tar sands. One of these steps was the completion of a programmatic environmental impact statement (PEIS) to analyze the impacts of a commercial leasing program for oil shale and tar sands resources on public lands, with an emphasis on the most geologically prospective lands in Colorado, Utah, and Wyoming. For oil shale, the scope of the PEIS analysis includes public lands within the Green River, Washakie, Uinta, and Piceance Creek Basins. For tar sands, the scope includes Special Tar Sand Areas (STSAs) located in Utah. This paleontological resources overview report was prepared in support of the Oil Shale and Tar Sands Resource Management Plan Amendments to Address Land Use Allocations in Colorado, Utah, and Wyoming and PEIS, and it is intended to be used by Bureau of Land Management (BLM) regional paleontologists and field office staff to support future projectspecific analyses. Additional information about the PEIS can be found at http://ostseis.anl.gov.

Murphey, P. C.; Daitch, D.; Environmental Science Division

2009-02-11T23:59:59.000Z

326

Stability of nickel-coated sand as gravel-pack material for thermal wells  

SciTech Connect (OSTI)

Laboratory flow tests have been carried out to study the stability of various nickel-coated sands under aqueous steam temperature and pH conditions that may exist in thermal recovery operations. Other gravel-pack materials tested include Ottawa sand, sintered bauxite, cement clinker, zirconium oxide, and nickel pellets. A comparison was made between the performances of these materials after exposure to identical thermal and hydrolytic conditions. Test results indicate that nickel-coated sands are highly resistant to dissolution at temperatures as high as 300/sup 0/C (570/sup 0/F) and to solution pH's from 4.75 to 11. Weight losses measured after a 72-hour period were less than 1%. In contrast, weight losses from sintered bauxite, zirconium oxide, and Ottawa sand dissolution tests were 30 to 70 times higher under the same conditions. Cement clinker losses were in the intermediate range under alkaline conditions. API standard crushing and acid-solubility tests for proppants also were performed on nickel-coated sands. These results were favorable in that they exceeded the recommended standards. This study of nickel-coated sand stability and mechanical strength has demonstrated its high potential for application as either a gravel-pack material or proppant in thermal recovery operations.

Sacuta, A.; Nguyen, D.M.; Kissel, G.A. (Alberta Research Council (CA))

1988-11-01T23:59:59.000Z

327

Ternary ceramic alloys of Zr-Ce-Hf oxides  

DOE Patents [OSTI]

A ternary ceramic alloy is described which produces toughening of zirconia and zirconia composites through the stress transformation from tetragonal phase to monoclinic phase. This alloy, having the general formula Ce[sub x]Hf[sub y]Zr[sub 1[minus]x[minus]y]O[sub 2], is produced through the addition of appropriate amounts of ceria and hafnia to the zirconia. Typically, improved toughness is achieved with about 5 to about 15 mol % ceria and up to about 40 mol % hafnia. The preparation of alloys of these compositions are given together with data as to the densities, tetragonal phase content, hardness and fracture toughness. The alloys are useful in preparing zirconia bodies as well as reinforcing ceramic composites. 1 fig.

Becher, P.F.; Funkenbusch, E.F.

1990-11-20T23:59:59.000Z

328

Ternary ceramic alloys of ZR-CE-HF oxides  

DOE Patents [OSTI]

A ternary ceramic alloy which produces toughening of zirconia and zirconia composites through the stress transformation from tetragonal phase to monoclinic phase. This alloy, having the general formula Ce.sub.x Hf.sub.y Zn.sub.1-x-y O.sub.2, is produced through the addition of appropriate amounts of ceria and hafnia to the zirconia. Typically, improved toughness is achieved with about 5 to about 15 mol % ceria and up to about 40 mol % hafnia. The preparation of alloys of these compositions are given together with data as to the densities, tetragonal phase content, hardness and fracture toughness. The alloys are useful in preparing zirconia bodies as well as reinforcing ceramic composites.

Becher, Paul F. (Oak Ridge, TN); Funkenbusch, Eric F. (White Bear Lake, MN)

1990-01-01T23:59:59.000Z

329

Dynamic Behavior of Sand: Annual Report FY 11  

SciTech Connect (OSTI)

Currently, design of earth-penetrating munitions relies heavily on empirical relationships to estimate behavior, making it difficult to design novel munitions or address novel target situations without expensive and time-consuming full-scale testing with relevant system and target characteristics. Enhancing design through numerical studies and modeling could help reduce the extent and duration of full-scale testing if the models have enough fidelity to capture all of the relevant parameters. This can be separated into three distinct problems: that of the penetrator structural and component response, that of the target response, and that of the coupling between the two. This project focuses on enhancing understanding of the target response, specifically granular geomaterials, where the temporal and spatial multi-scale nature of the material controls its response. As part of the overarching goal of developing computational capabilities to predict the performance of conventional earth-penetrating weapons, this project focuses specifically on developing new models and numerical capabilities for modeling sand response in ALE3D. There is general recognition that granular materials behave in a manner that defies conventional continuum approaches which rely on response locality and which degrade in the presence of strong response nonlinearities, localization, and phase gradients. There are many numerical tools available to address parts of the problem. However, to enhance modeling capability, this project is pursuing a bottom-up approach of building constitutive models from higher fidelity, smaller spatial scale simulations (rather than from macro-scale observations of physical behavior as is traditionally employed) that are being augmented to address the unique challenges of mesoscale modeling of dynamically loaded granular materials. Through understanding response and sensitivity at the grain-scale, it is expected that better reduced order representations of response can be formulated at the continuum scale as illustrated in Figure 1 and Figure 2. The final result of this project is to implement such reduced order models in the ALE3D material library for general use.

Antoun, T; Herbold, E; Johnson, S

2012-03-15T23:59:59.000Z

330

FIELD TESTING & OPTIMIZATION OF CO2/SAND FRACTURING TECHNOLOGY  

SciTech Connect (OSTI)

These contract efforts involved the demonstration of a unique liquid free stimulation technology which was, at the beginning of these efforts, in 1993 unavailable in the US. The process had been developed, and patented in Canada in 1981, and held promise for stimulating liquid sensitive reservoirs in the US. The technology differs from that conventionally used in that liquid carbon dioxide (CO{sub 2}), instead of water is the base fluid. The CO{sub 2} is pumped as a liquid and then vaporizes at reservoir conditions, and because no other liquids or chemicals are used, a liquid free fracture is created. The process requires a specialized closed system blender to mix the liquid CO{sub 2} with proppant under pressure. These efforts were funded to consist of up to 21 cost-shared stimulation events. Because of the vagaries of CO{sub 2} supplies, service company support and operator interest only 19 stimulation events were performed in Montana, New Mexico, and Texas. Final reports have been prepared for each of the four demonstration groups, and the specifics of those demonstrations are summarized. A summary of the demonstrations of a novel liquid-free stimulation process which was performed in four groups of ''Candidate Wells'' situated in Crockett Co., TX; San Juan Co., NM; Phillips Co., MT; and Blaine Co., MT. The stimulation process which employs CO{sub 2} as the working fluid and the production responses were compared with those from wells treated with conventional stimulation technologies, primarily N{sub 2} foam, excepting those in Blaine Co., MT where the reservoir pressure is too low to clean up spent stimulation liquids. A total of 19 liquid-free CO{sub 2}/sand stimulations were performed in 16 wells and the production improvements were generally uneconomic.

Raymond L. Mazza

2004-11-30T23:59:59.000Z

331

1synQPSK Univ. Paderborn, Germany; CeLight Israel; Photline, France; IPAG, Germany Univ. Paderborn, Germany  

E-Print Network [OSTI]

1synQPSK Univ. Paderborn, Germany; CeLight Israel; Photline, France; IPAG, Germany synQPSK Univ. Paderborn, Germany CeLight Israel Photline, France IPAG, Germany Contract 004631 in FP6 IST-2002 Phase Shift Keying Transmission #12;2synQPSK Univ. Paderborn, Germany; CeLight Israel; Photline, France

Noé, Reinhold

332

Synthesis and magnetic properties of the double layer perovskite CeBaFe2O5+w  

E-Print Network [OSTI]

Synthesis and magnetic properties of the double layer perovskite CeBaFe2O5+w R. L. de Almeida,1 O The synthesis, crystallographic structure, and magnetic properties of polycrystalline single-phase samples of CeBaFe results on the successful prepara- tion and characterization of polycrystalline CeBaFe2O5+w samples. Ideal

de Lima, Oscar Ferreira

333

Reassessment of Al-Ce and Al-Nd Binary Systems Supported by Critical Experiments and First-Principles  

E-Print Network [OSTI]

Reassessment of Al-Ce and Al-Nd Binary Systems Supported by Critical Experiments and First The present study reinvestigates the Al-Ce and Al-Nd phase diagrams and reoptimizes their thermody- namics results and theoretical calculations show that Al2Nd (or Al2Ce) should be treated as a stoichiometric

Widom, Michael

334

Studies on Cu/CeO{sub 2}: A new NO reduction catalyst  

SciTech Connect (OSTI)

Fine particle and large surface area Cu/CeO{sub 2} catalysts of crystallite sizes in the range of 100--200 {angstrom} synthesized by the solution combustion method have been investigated for NO reduction. Five percent Cu/CeO{sub 2} catalyst shows nearly 100% conversion of NO by NH{sub 3} below 300 C, whereas pure ceria and Zr, Y, and Ca doped ceria show 85--95% NO conversion above 600 C. Similarly NO reduction by CO has been observed over 5% Cu/CeO{sub 2} with nearly 100% conversion below 300 C. Hydrocarbon (n-butane) oxidation by NO to CO{sub 2}, N{sub 2}, and H{sub 2}O has also been demonstrated over this catalyst below 350 C making Cu/CeO{sub 2} a new NO reduction catalyst in the low temperature window of 150--350 C. Kinetics of NO reduction over 5% Cu/CeO{sub 2} have also been investigated. The rate constants are in the range of 1.4 {times} 10{sup 4} to 2.3 {times} 10{sup 4} cm{sup 3}/g s between 170 and 300 C. Cu/CeO{sub 2} catalysts are characterized by X-ray diffraction, transmission electron microscopy, X-ray photoelectron spectroscopy, and electron paramagnetic resonance spectroscopy where Cu{sup 2+} ions are shown to be dispersed on the CeO{sub 2} surface.

Bera, P.; Aruna, S.T.; Patil, K.C.; Hegde, M.S. [Indian Inst. of Science, Bangalore (India)] [Indian Inst. of Science, Bangalore (India)

1999-08-15T23:59:59.000Z

335

Studies on Ca2+-Doped CeBr3 Scintillating Materials  

SciTech Connect (OSTI)

Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide (LaBr3:Ce), their commercial availability and application is limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. The objective of this investigation was to employ aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was investigated as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were investigated using the density functional theory within generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

Guss, P. [NSTec; Foster, M. E. [SNL; Wong, B. M. [SNL; Doty, F. P. [SNL; Shah, K. [RMD; Squillante, M. [RMD; Glodo, J. [RMD; Yuan, D. [NSTec

2013-07-03T23:59:59.000Z

336

Studies on Ca2+-Doped CeBr3 Scintillating Materials  

SciTech Connect (OSTI)

Despite the outstanding scintillation performance characteristics of cerium tribromide (CeBr3) and cerium-activated lanthanum tribromide (LaBr3:Ce), their commercial availability and application is limited due to the difficulties of growing large, crack-free single crystals from these fragile materials. The objective of this investigation was to employ aliovalent doping to increase crystal strength while maintaining the optical properties of the crystal. One divalent dopant (Ca2+) was investigated as a dopant to strengthen CeBr3 without negatively impacting scintillation performance. Ingots containing nominal concentrations of 1.9% of the Ca2+ dopant were grown. Preliminary scintillation measurements are presented for this aliovalently doped scintillator. Ca2+-doped CeBr3 exhibited little or no change in the peak fluorescence emission for 371 nm optical excitation for CeBr3. The structural, electronic, and optical properties of CeBr3 crystals were investigated using the density functional theory within generalized gradient approximation. The calculated lattice parameters are in good agreement with the experimental data. The energy band structures and density of states were obtained. The optical properties of CeBr3, including the dielectric function, were calculated.

Guss, P. [NSTec; Foster, M. E. [SNL; Wong, B. M. [SNL; Doty, F. P. [SNL; Shah, K. [RMD; Squillante, M. R. [RMD; Shirwadkar, U. [RMD; Hawrami, R. [RMD; Tower, J. [RMD; Yuan, D. [NSTec

2013-09-01T23:59:59.000Z

337

SOLVING THE SHUGART QUEEN SAND PENASCO UNIT DECLINING PRODUCTION PROBLEM  

SciTech Connect (OSTI)

The Penasco Shugart Queen Sand Unit located in sections 8, 9, 16 & 17, T18S, 31E Eddy County New Mexico is operated by MNA Enterprises Ltd. Co. Hobbs, NM. The first well in the Unit was drilled in 1939 and since that time the Unit produced 535,000 bbl of oil on primary recovery and 375,000 bbl of oil during secondary recovery operations that commenced in 1973. The Unit secondary to primary ratio is 0.7, but other Queen waterfloods in the area had considerably larger S/P ratios. On June 25 1999 MNA was awarded a grant under the Department of Energy's ''Technology Development with Independents'' program. The grant was used to fund a reservoir study to determine if additional waterflood reserves could be developed. A total of 14 well bores that penetrate the Queen at 3150 ft are within the Unit boundaries. Eleven of these wells produced oil during the past 60 years. Production records were pieced together from various sources including the very early state production records. One very early well had a resistivity log, but nine of the wells had no logs, and four wells had gamma ray-neutron count-rate perforating logs. Fortunately, recent offset deep drilling in the area provided a source of modern logs through the Queen. The logs from these wells were used to analyze the four old gamma ray-neutron logs within the Unit. Additionally the offset well log database was sufficient to construct maps through the unit based on geostatistical interpolation methods. The maps were used to define the input parameters required to simulate the primary and secondary producing history. The history-matched simulator was then used to evaluate four production scenarios. The best scenario produces 51,000 bbl of additional oil over a 10-year period. If the injection rate is held to 300 BWPD the oil rate declines to a constant 15 BOPD after the first year. The projections are reasonable when viewed in the context of the historical performance ({approx}30 BOPD with a {approx}600 BWPD injection rate during 1980-1990). If an additional source of water is developed, increasing the injection rate to 600 BWPD will double the oil-producing rate. During the log evaluation work the presence of a possibly productive Penrose reservoir about 200 ft below the Queen was investigated. The Penrose zone exists throughout the Unit, but appears to be less permeable than the Queen. The maps suggest that either well 16D or 16C are suitable candidates for testing the Penrose zone.

Lowell Deckert

2000-08-25T23:59:59.000Z

338

The extraction of bitumen from western oil sands. Annual report, July 1991--July 1992  

SciTech Connect (OSTI)

The University of Utah tar sand research and development program is concerned with research and development on Utah is extensive oil sands deposits. The program has been intended to develop a scientific and technological base required for eventual commercial recovery of the heavy oils from oil sands and processing these oils to produce synthetic crude oil and other products such as asphalt. The overall program is based on mining the oil sand, processing the mined sand to recover the heavy oils and upgrading them to products. Multiple deposits are being investigated since it is believed that a large scale (approximately 20,000 bbl/day) plant would require the use of resources from more than one deposit. The tasks or projects in the program are organized according to the following classification: Recovery technologies which includes thermal recovery methods, water extraction methods, and solvent extraction methods; upgrading and processing technologies which covers hydrotreating, hydrocracking, and hydropyrolysis; solvent extraction; production of specialty products; and environmental aspects of the production and processing technologies. These tasks are covered in this report.

Oblad, A.G.; Bunger, J.W.; Dahlstrom, D.A.; Deo, M.D.; Hanson, F.V.; Miller, J.D.; Seader, J.D.

1992-08-01T23:59:59.000Z

339

A correlation of United States tar sand bitumen viscosities with NMR spectroscopic parameters  

SciTech Connect (OSTI)

A method has been developed whereby the viscosity of a tar sand bitumen at any temperature can be calculated from nuclear magnetic resonance parameters. The method is semiempirical but is based upon some fundamental theoretical concepts for molecular mobility and intermolecular interactions. Using this method, the viscosities of three United States tar sand bitumens have been correlated to the weighted average spin-spin relaxation rates for the semiliquid, solidlike mobile, and solidlike rigid phases of the bitumens. The results indicate that bitumens with a high viscosity have a greater amount of solidlike rigid phase and lesser amounts of solidlike mobile and semiliquid phases than do the bitumens with low viscosity. It is also shown that the viscosity of a tar sand bitumen over a 100 degree temperature range can be determined from a single NMR experiment conducted near room temperature. 18 refs., 3 figs., 4 tabs.

Netzel, D.A.; Turner, T.F.

1989-06-01T23:59:59.000Z

340

A correlation of United States tar sand bitumen viscosities with NMR spectroscopic parameters  

SciTech Connect (OSTI)

A method has been developed whereby the viscosity of a tar sand bitumen at any temperature can be calculated from nuclear magnetic resonance parameters. The method is semi empirical but is based upon some fundamental theoretical concepts for molecular mobility and intermolecular interactions. Using this method, the viscosities of three United States tar sand bitumens have been correlated to the weighted average spin-spin, relaxation rates for the semiliquid, solidlike mobile, and solidlike rigid phases of the bitumens. The results indicate that bitumens with a high viscosity have a greater amount of solidlike rigid phase and lesser amounts of solidlike mobile and semiliquid phases than do the bitumens with low viscosity. It is also shown that the viscosity of a tar sand bitumen over a 100 degree temperature range can be determined from a single NMR experiment conducted near room temperature.

Netzel, D.A.; Turner, T.F. (Western Research Institute, Box 3395, Laramie, WY (US))

1990-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

CE 363 -TRANSPORTATION ENGINEERING AND PAVEMENT DESIGN Fall 2009 Course Syllabus  

E-Print Network [OSTI]

1 CE 363 - TRANSPORTATION ENGINEERING AND PAVEMENT DESIGN Fall 2009 Course Syllabus Catalog (4) CDT Course Syllabus D2L: The primary source for homework, solutions, design project activities, and other

Hickman, Mark

342

Pressure tuning of competing magnetic interactions in intermetallic CeFe2  

SciTech Connect (OSTI)

We use high-pressure magnetic x-ray diffraction and numerical simulation to determine the low-temperature magnetic phase diagram of stoichiometric CeFe2. Near 1.5 GPa we find a transition from ferromagnetism to antiferromagnetism, accompanied by a rhombohedral distortion of the cubic Laves crystal lattice. By comparing pressure and chemical substitution we find that the phase transition is controlled by a shift of magnetic frustration from the Ce-Ce to the Fe-Fe sublattice. Notably the dominant Ce-Fe magnetic interaction, which sets the temperature scale for the onset of long-range order, remains satisfied throughout the phase diagram but does not determine the magnetic ground state. Our results illustrate the complexity of a system with multiple competing magnetic energy scales and lead to a general model for magnetism in cubic Laves phase intermetallic compounds.

Wang, Jiyang; Feng, Yejun; Jaramillo, R.; van Wezel, Jasper; Canfield, Paul C.; Rosenbaum, T.F.

2012-07-20T23:59:59.000Z

344

Ion-Beam-Induced Chemical Mixing at a Nanocrystalline CeO2&ndash...  

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

microscopy imaging and analysis suggest that this band of contrast is a cerium silicate phase with an approximate Ce:Si:O composition ratio of 1:1:3 in an amorphous nature....

345

Data:B084b37a-3e1c-482d-8041-d7ce3e7aa0ce | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onb5-dcc1fcffd1f2 No revision has38865d08 No revision has been approved for this page.af74fa257cc No54a9102ce3e7aa0ce No

346

Data:Ce82df4d-c557-42d2-a1f3-ce3b159222ae | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onb5-dcc1fcffd1f2bb71-d4159a938742e80b26cc4 Nodbb-44ce-80f8-79eb97a58f0a No revisionde0244033 No revisiona1f3-ce3b159222ae

347

Electronic structure and f-orbital occupancy in Yb-substituted CeCoIn5  

SciTech Connect (OSTI)

The local structure and 4f orbital occupancy have been investigated in Ce{sub 1?x}Yb{sub x}CoIn{sub 5} via Yb L{sub III}-edge extended x-ray absorption fine structure (EXAFS), Ce and Yb L{sub III}-edge x-ray absorption near-edge structure (XANES), and angle-resolved photoemission spectroscopy (ARPES) measurements. Yb(III) (4f{sup 13}) is the hole analog of Ce(III) (4f{sup 1}). Yb is found to be strongly intermediate-valent in Ce{sub 1?x}Yb{sub x}CoIn{sub 5} throughout the entire doping range, including pure YbCoIn{sub 5}, with an f-hole occupancy for Yb of n{sub f} ? 0.3 (i.e. Yb{sup 2.3+}), independent of Yb concentration and independent of temperature down to T = 20 K. In contrast, the f-electron orbital occupancy for Ce remains close to 1 for all Yb concentrations, suggesting that there is no mutual influence on n{sub f} between neighboring Ce and Yb sites. Likewise, ARPES measurements at 12 K have found that the electronic structure along {Gamma} ? X is not sensitive to the Yb substitution, suggesting that the Kondo hybridization of Ce f electrons with the conduction band is not affected by the presence of Yb impurities in the lattice. The emerging picture is that in Ce{sub 1?x}Yb{sub x}CoIn{sub 5} there are two networks, interlaced but independent, that couple to the conduction band: one network of Ce ions in the heavy-fermion limit, one network of Yb ions in the strongly intermediate-valent limit. The robustness of the local and electronic structure to doping suggests the absence of charge transfer between the Ce and Yb ions, and may explain the relative robustness of superconductivity for this Ce-site substitution as compared to the In-site substitution.

Booth, C. H.; Durakiewicz, T.; Capan, C.; Hurt, D.; Bianchi, A. D.; Joyce, J.J.; Fisk, Z.

2011-05-03T23:59:59.000Z

348

582014-15 Suggested Course Plan CompuTeR sCIenCe  

E-Print Network [OSTI]

Algebra & Diff. Equations EE 364: Intro to Probability & Statistics or mATh 407: Probability Theory sCIenCe582014-15 Suggested Course Plan CompuTeR sCIenCe FIRST YEAR FALL: 16 units SPRING: 16 units SECOND104L,170 4 BASIC SCIENCE I 4 TECH. ELECTIVE I 4 TECH. ELECTIVE II 4 EE 364 MATH225or245 or MATH 407

Zhou, Chongwu

349

Holocene stratigraphy of the Alabama inner continental shelf: Influence of shelf sand ridges on determining lithofacies architecture  

SciTech Connect (OSTI)

Surface and subsurface distribution of lithofacies from Holocene sediments of the AL inner continental shelf was determined from a series of 59 vibracores and associated surface sediment grab sediments. Five Holocene lithofacies composed of 12 discrete microfacies were delineated based on grain size, color, sedimentary structures, shell content, and fabric of samples. These lithofacies include: (1) Graded Shelly Sand Lithofacies; (2) Clean Sand Lithofacies; (3) Dirty Sand Lithofacies; (4) Biogenic Sediment Lithofacies; and (5) Muddy Sediment Lithofacies. These represent four major depositional environments: The Shelf Sand Sheet Environment (lithofacies 1 and 2); the Sand Ridge Environment (lithofacies 1, 2, and 3); the Bay/Lagoon Environment (lithofacies 3, 4 and 5); and the Muddy Shelf Environment (lithofacies 5). East of the Main Pass of Mobile Bay, the seafloor is composed of a clean Shelf Sand Sheet with oblique shelf sand ridges; Clean Sand and Graded Shelly Sand are the dominant surface sediment types. Coarse shell beds that grade up to quartz sand units (total thickness 0.1 to 3+m) interpreted as tempestites comprise most of the upper portion of the ridges. West of the Pass, the muddier lithofacies (3 and 5) dominate surface samples. Microfacies at depth represent the early Holocene transgressive systems tract; these include the Muddy Shelf Depositional Environment and the filled estuaries and bays of the flooded Pleistocene fluvial valleys represented by the Bay/Lagoon Depositional Environment. The AL inner shelf provides an excellent model of the variability of sedimentation mode in time and space during deposition of a transgressive systems tract. Development of the palimpsest sand sheet/ridge complex progressed on the eastern shelf due to shut off of sediment influx, westward longshore currents, and episodic incidence of major hurricanes. On the western shelf a patchy distribution of muddier sediments developed from input of floodwaters from Mobile Bay.

Davies, D.J.; Parker, S.J. (Geological Survey of Alabama, Tuscaloosa, AL (United States). Energy and Coastal Geology Div.)

1993-03-01T23:59:59.000Z

350

CeO2 and CuOx Interactions and the Controlled Assembly of CeO2(111) and CeO2(100) Nanoparticles on an Oxidized Cu(111)Substrate  

SciTech Connect (OSTI)

The catalytic performance of ceria-based heterogeneous catalysts in many chemical transformations (water-gas shift reaction, CO oxidation, alcohol synthesis from CO/CO{sub 2} hydrogenation, etc.) is affected by the surface structure of the ceria. To control the performance of ceria-containing inverse catalysts, we devised a method to grow ceria nanoparticles (NPs) exposing exclusively either (111) or (100) surfaces and characterized their surface structures by scanning tunneling microscopy. When cerium is vapor-deposited on Cu(111) in a background of molecular O{sub 2}, only CeO{sub 2}(111) NPs grow. However, if the surface of Cu(111) is preoxidized with O{sub 2} or NO{sub 2} to form a rectangular copper oxide phase, probably Cu{sub 4}O{sub 3}(001), CeO{sub 2}(100) NPs grow on the oxide template instead. These experimental findings are interpreted using results of density functional calculations. The (100) surface of bulk ceria reconstructs to preserve charge neutrality. This is not necessary for CeO{sub 2}(100) NPs grown on Cu{sub 4}O{sub 3}(001), where the topmost oxygen layer of Cu{sub 4}O{sub 3} is shared with the interfacial layer of cerium. After the CeO{sub 2}(100)/CuO{sub x}/Cu(111) surfaces were exposed to CO, the copper oxide was reduced but the shape of the CeO{sub 2}(100) NPs remained intact. This opens the door for diverse applications in catalysis.

Rodriguez J. A.; Yang F.; Choi Y.M.; Agnoli S.; Liu P.; Stacchiola D.; Hrbek J.

2011-11-24T23:59:59.000Z

351

Sand pack residual oil saturations as affected by extraction with various solvents  

E-Print Network [OSTI]

invalidate the conclusions of Jennings, as his natural cores were obtained using oQ-base muds, Data presented by Shneerson an4 VasOieva sho? that reservoir 7 mineral surfaces made preferentially oil-wst with crude oils could not be altered in wettability..., and air pressure was main tained on the supply reservoirs for a minimum time. Tbe fluids used to saturate the sand packs were tap water, kerosene, Sradford crude and topped East Texas crude oil, Organic solvents used to extract the sand packs were...

Murray, Clarence

1958-01-01T23:59:59.000Z

352

A pressuremeter method for single piles subjected to cyclic lateral loads in sand  

E-Print Network [OSTI]

of piles in sand subJected to ~~ cyclic horizontal loads, and (0) the proposed method cannot predict the degradation (or lack of it) of piles in sand subjected to ~~ cyclic horizontal loads because the pr essuremeter is a cyclic test. Zn memory of my... and dedication to his own research served as an inspiration for the author. Mr. Tucker's talent in micr ocomputer pr ogr amming and his vii willingness to share his knowledge were invaluable in the reduction of the pressuremeter data. Finally, the author...

Little, Robert Lewis

1987-01-01T23:59:59.000Z

353

In situ heat treatment of a tar sands formation after drive process treatment  

DOE Patents [OSTI]

A method for treating a tar sands formation includes providing a drive fluid to a hydrocarbon containing layer of the tar sands formation to mobilize at least some hydrocarbons in the layer. At least some first hydrocarbons from the layer are produced. Heat is provided to the layer from one or more heaters located in the formation. At least some second hydrocarbons are produced from the layer of the formation. The second hydrocarbons include at least some hydrocarbons that are upgraded compared to the first hydrocarbons produced by using the drive fluid.

Vinegar, Harold J. (Bellaire, TX); Stanecki, John (Blanco, TX)

2010-09-21T23:59:59.000Z

354

Analysis of the behavior of 5 axially loaded single piles in sand at Hunter's Point  

E-Print Network [OSTI]

ANALYSIS OF THE BEHAVIOR OF 5 AXIALLY LOADED SINGLE PILES IN SAND AT HUNTER'S POINT A Thesis by CHER MIN RON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirement for the degree... of MASTER OF SCIENCE May 1989 Major Subject; Civil Engineering ANALYSIS OF THE BEHAVIOR OF 5 AXIALLY LOADED SINGLE PILES IN SAND AT HUNTER'S POINT A Thesis by GHEE MIN RON Approved as to style and content by: Jean-Louis Briaud Chairman of Committee...

Kon, Chee Min

1989-01-01T23:59:59.000Z

355

Request received (from Norway, regarding e-mail titled "Grandparents Oppose Tar Sands"): Thanks. I have seen them in the news here in Norway as well about the Tar Sands.  

E-Print Network [OSTI]

Request received (from Norway, regarding e-mail titled "Grandparents Oppose Tar Sands"): Thanks. I have seen them in the news here in Norway as well about the Tar Sands. Question: When you send us by Anne Dalberg, chair of the Sami Church Council. Norway's First Nation - the Sami - showing solidarity

Hansen, James E.

356

A discrete particle approach to simulate the combined effect of blast and sand impact loading of steel plates  

E-Print Network [OSTI]

A discrete particle approach to simulate the combined effect of blast and sand impact loading March 2011 Keywords: Blast loads Experimental tests Sand ejecta Discrete particles Numerical simulations a b s t r a c t The structural response of a stainless steel plate subjected to the combined blast

Wadley, Haydn

357

Light extraction from organic light-emitting diodes for lighting applications by sand-blasting  

E-Print Network [OSTI]

Light extraction from organic light-emitting diodes for lighting applications by sand@ust.hk Abstract: Light extraction from organic light-emitting diodes (OLEDs) by scattering the light is one of the effective methods for large-area lighting applications. In this paper, we present a very simple and cost

358

Hot alkaline treatment to stimulate and consolidate the heavy oil Bachaquero-01 sand  

E-Print Network [OSTI]

, PDVSA (Petroleos de Venezuela, S.A.), operates the Lagunillas field. It represents one of the most important heavy oil accumulations in the Bolivar Coast group of fields. Bachaquero-01 reservoir covers 19,540 acres of unconsolidated sand and contains...

Valera Villarroel, Cesar Amabilis

2005-02-17T23:59:59.000Z

359

Air and water flows in a large sand box with a two-layer aquifer system  

E-Print Network [OSTI]

Air and water flows in a large sand box with a two-layer aquifer system Xingxing Kuang & Jiu Jimmy negative air pressure can be generated in the vadose zone during pumping. The negative air pressure. The initial water-table depth has a significant effect on the generated negative air pressure. The shallower

Jiao, Jiu Jimmy

360

Production of Natural Gas and Fluid Flow in Tight Sand Reservoirs  

SciTech Connect (OSTI)

This document reports progress of this research effort in identifying possible relationships and defining dependencies between macroscopic reservoir parameters strongly affected by microscopic flow dynamics and production well performance in tight gas sand reservoirs. Based on a critical review of the available literature, a better understanding of the main weaknesses of the current state of the art of modeling and simulation for tight sand reservoirs has been reached. Progress has been made in the development and implementation of a simple reservoir simulator that is still able to overcome some of the deficiencies detected. The simulator will be used to quantify the impact of microscopic phenomena in the macroscopic behavior of tight sand gas reservoirs. Phenomena such as, Knudsen diffusion, electro-kinetic effects, ordinary diffusion mechanisms and water vaporization are being considered as part of this study. To date, the adequate modeling of gas slippage in porous media has been determined to be of great relevance in order to explain unexpected fluid flow behavior in tight sand reservoirs.

Maria Cecilia Bravo; Mariano Gurfinkel

2005-06-30T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

Production of Natural Gas and Fluid Flow in Tight Sand Reservoirs  

SciTech Connect (OSTI)

This document reports progress of this research effort in identifying relationships and defining dependencies between macroscopic reservoir parameters strongly affected by microscopic flow dynamics and production well performance in tight gas sand reservoirs. These dependencies are investigated by identifying the main transport mechanisms at the pore scale that should affect fluids flow at the reservoir scale. A critical review of commercial reservoir simulators, used to predict tight sand gas reservoir, revealed that many are poor when used to model fluid flow through tight reservoirs. Conventional simulators ignore altogether or model incorrectly certain phenomena such as, Knudsen diffusion, electro-kinetic effects, ordinary diffusion mechanisms and water vaporization. We studied the effect of Knudsen's number in Klinkenberg's equation and evaluated the effect of different flow regimes on Klinkenberg's parameter b. We developed a model capable of explaining the pressure dependence of this parameter that has been experimentally observed, but not explained in the conventional formalisms. We demonstrated the relevance of this, so far ignored effect, in tight sands reservoir modeling. A 2-D numerical simulator based on equations that capture the above mentioned phenomena was developed. Dynamic implications of new equations are comprehensively discussed in our work and their relative contribution to the flow rate is evaluated. We performed several simulation sensitivity studies that evidenced that, in general terms, our formalism should be implemented in order to get more reliable tight sands gas reservoirs' predictions.

Maria Cecilia Bravo

2006-06-30T23:59:59.000Z

362

Oscillation-induced sand ripples in a circular geometry Germain Rousseaux*  

E-Print Network [OSTI]

by surface water waves at the fluid-granular interface on the beach. Historically, the first laboratory ex d relative density with respect to water s/ f =2.49 . Then we fill the tank with water kinematic oscillating cir- cular tanks filled with water, at the bottom of which they put a layer of sand 1,2 . More

Wesfreid, José Eduardo

363

Kinetic fractionation of Fe isotopes during transport through a porous quartz-sand column  

E-Print Network [OSTI]

water remediation (Brantley et al., 2004; Icopini et al., 2004; Crosby et al., 2005; Johnson et al-sand matrix. Transport equations describing the behav- ior of sorbing isotopic species in a water saturated should produce a system that is less dependent on kinetic effects. The results of this study

Gvirtzman, Haim

364

Geospatial analysis of a coastal sand dune field evolution: Jockey's Ridge, North Carolina  

E-Print Network [OSTI]

Geospatial analysis of a coastal sand dune field evolution: Jockey's Ridge, North Carolina Helena, geospatial analysis, feature extraction, and quantification of change. These techniques were applied requires in-depth understanding of their evolution. Modern geospatial technologies such as lidar, real time

Mitasova, Helena

365

Norway, Canada, the United States, and the Tar Sands James Hansen  

E-Print Network [OSTI]

Norway, Canada, the United States, and the Tar Sands 9 May 2013 James Hansen Today 36 Norwegian development, given the fact that Norway saves much of its oil earnings for future generations and given the fact that Norway is not likely among the nations that will suffer most from climate change. I wonder

Hansen, James E.

366

Production and Pressure Decline Curves for Wet Gas Sands With Closed Outer Boundaries  

E-Print Network [OSTI]

. SPE SPE 23442 Production and Pressure Decline Curves for Wet Gas Sands With Closed Outer, Richardson, TX 7S0834S36 U.5A. Telex, 730989 SPEDAL. ABSTRACT A family of pressure and production decline as gas reservoirs which produce substan- tial amounts of water together with ~as. Production of water

Mohaghegh, Shahab

367

Integration of nuclear power with oil sands extraction projects in Canada  

E-Print Network [OSTI]

One of the largest oil reserves in the world is not in the Middle East or in Alaska, but in Canada. This fuel exists in the form of bitumen in Alberta's oil sands. While it takes a tremendous amount of energy to recover ...

Finan, Ashley (Ashley E.)

2007-01-01T23:59:59.000Z

368

Reliability of Laser Welding Process for ZE41A-T5 Magnesium Alloy Sand Castings  

E-Print Network [OSTI]

Reliability of Laser Welding Process for ZE41A-T5 Magnesium Alloy Sand Castings Haider Al-Kazzaz1 for magnesium alloys. The process reliability of 2-mm ZE41A-T5 butt joints welded by a 4 kW Nd:YAG laser, reproducibility, Weibull distribution 1. Introduction The applications of magnesium alloys are expanding rapidly

Medraj, Mamoun

369

Multicomponent Transport of Sulfate in a Goethite-Silica Sand System  

E-Print Network [OSTI]

Multicomponent Transport of Sulfate in a Goethite-Silica Sand System at Variable pH and Ionic of protons and sulfate on goethite and silica were used in combination with a one-dimensional mass-transport model to predict the transport of sulfate at variable pH and ionic strength in a goethite-silica system

Sparks, Donald L.

370

The performance of the small-angle diffractometer, SAND at IPNS.  

SciTech Connect (OSTI)

The time-of-flight small-angle diffractometer SAND has been serving the scientific user community since 1996. One notable feature of SAND is its capability to measure the scattered intensity in a wide Q (4{pi}sin{theta}/{lambda}, where 2{theta} is the scattering angle and {lambda} is the wavelength of the neutrons) range of 0.0035 to 0.5 {angstrom}{sup {minus}1} in a single measurement. The optical alignment system makes it easy to set up the instrument and the sample. The cryogenically cooled MgO filter reduces the fast neutrons over two orders of magnitude, while still transmitting over 70% of the cold neutrons. A drum chopper running at 15 Hz suppresses the delayed neutron background. SAND has a variety of ancillary equipment to control the sample environment. In this paper we describe the features of the SAND instrument, compare its data on a few standard samples with those measured at well established centers in the world, and display two scientific examples which take advantage of measuring data in a wide Q-range in a single measurement. With a new set of tight collimators the Q{sub min} can be lowered to 0.002 {angstrom}{sup {minus}1} and the presently installed high-angle bank of detectors will extend the Q{sub max} to 2 {angstrom}{sup {minus}1}.

Thiyagarajan, P.

1998-07-17T23:59:59.000Z

371

Development, parameterization, and validation of a visco-plastic material model for sand with different  

E-Print Network [OSTI]

the detonation products, mine fragments and soil ejecta Corresponding author: Department of Mechanical Engineer of Mechanical Engineering, Clemson University, Clemson, South Carolina, USA 2 Army Research Laboratory for sand with different levels of saturation tested mechanically at different strain rates.The model

Grujicic, Mica

372

SAND TRACER MOVEMENT MEASURED IN A STRONG RIP CURRENT Nicholas C. Kraus  

E-Print Network [OSTI]

exceeding 50 cm/sec in areas where instruments could be placed. Three colors of sand tracer were injected the diver's signal, a float tied to the diver's wrist was released and allowed to flow with the current because of the cold water, placed instruments, injected the tracer, and sampled the bottom with ropes tied

US Army Corps of Engineers

373

The White House & Tar Sands Remarks in front of the White House on 29 August 2011.  

E-Print Network [OSTI]

them b. Cheapest because: (1) direct/indirect subsidies, (2) human health costs not paid by fossil fuel Press Club on 29 August 2011. Figure 1. Total conventional fossil fuel emissions (purple) and 50% of unconventional resources (blue) Figure 1 helps make clear why the tar sands and other unconventional fossil fuels

Hansen, James E.

374

EFFECTS OF SAND AND SILICA FUME ON THE VIBRATION DAMPING BEHAVIOR OF CEMENT  

E-Print Network [OSTI]

. The silica fume (Elkem Materials, Inc., Pittsburgh, PA, EMS 965) was used in the amount of 15% by weight 14260-4400, USA (Received February 6, 1998; in final form June 26, 1998) ABSTRACT The addition of sand. 10, pp. 1353­1356, 1998 Copyright © 1998 Elsevier Science Ltd Printed in the USA. All rights reserved

Chung, Deborah D.L.

375

Abstract.-Kelp bass, Paralabrax clathratus, and barred sand bass, P.  

E-Print Network [OSTI]

sedentary fish which, in con- trast to kelp bass, are rarely found more than 3 m above the substra- tum472 Abstract.-Kelp bass, Paralabrax clathratus, and barred sand bass, P. nebulifer. are major, have shown that kelp bass prima- rily recruit betweenAugust and Decem- ber. In general, both kelp bass

376

BIOTIGER, A NATURAL MICROBIAL PRODUCT FOR ENHANCED HYDROCARBON RECOVERY FROM OIL SANDS.  

SciTech Connect (OSTI)

BioTiger{trademark} is a unique microbial consortia that resulted from over 8 years of extensive microbiology screening and characterization of samples collected from a century-old Polish waste lagoon. BioTiger{trademark} shows rapid and complete degradation of aliphatic and aromatic hydrocarbons, produces novel surfactants, is tolerant of both chemical and metal toxicity and shows good activity at temperature and pH extremes. Although originally developed and used by the U.S. Department of Energy for bioremediation of oil-contaminated soils, recent efforts have proven that BioTiger{trademark} can also be used to increase hydrocarbon recovery from oil sands. This enhanced ex situ oil recovery process utilizes BioTiger{trademark} to optimize bitumen separation. A floatation test protocol with oil sands from Ft. McMurray, Canada was used for the BioTiger{trademark} evaluation. A comparison of hot water extraction/floatation test of the oil sands performed with BioTiger{trademark} demonstrated a 50% improvement in separation as measured by gravimetric analysis in 4 h and a five-fold increase at 25 hr. Since BioTiger{trademark} performs well at high temperatures and process engineering can enhance and sustain metabolic activity, it can be applied to enhance recovery of hydrocarbons from oil sands or other complex recalcitrant matrices.

Brigmon, R; Topher Berry, T; Whitney Jones, W; Charles Milliken, C

2008-05-27T23:59:59.000Z

377

Mineralogical and chemical variability of fluvial sediments 1. Bedload sand (GangaBrahmaputra, Bangladesh)  

E-Print Network [OSTI]

Mineralogical and chemical variability of fluvial sediments 1. Bedload sand (Ganga textural, petrographical, mineralogical and chemical data, and in the quantitative description and modeling of relationships among mineralogical and chemical variables for each sample and each grain-size class in each

Najman, Yani

378

Evolution of seismic velocities in heavy oil sand reservoirs during thermal recovery process  

E-Print Network [OSTI]

1 Evolution of seismic velocities in heavy oil sand reservoirs during thermal recovery process. Larribau 64018 Pau Cedex, France Oil and Gas Science and Technology 2012, 67 (6), 1029-1039, doi:10 pressure and temperature in the rock reservoir, that are most often unconsolidated or weakly consolidated

Paris-Sud XI, Université de

379

Process sedimentology and reservoir quality of deep-marine bottom-current reworked sands (sandy contourites): An example from the Gulf of Mexico  

SciTech Connect (OSTI)

Deep-marine bottom-current reworked sands (sandy contourites) have been recognized in hydrocarbon-bearing sands of the Gulf of Mexico. A distinctive attribute of these sands is their traction bed forms, which occur in discrete units. Common sedimentary features of traction currents include cross-bedding, current ripples, horizontal lamination, sharp upper contacts, and inverse size grading. These sands also exhibit internal erosional surfaces and mud offshoots, indicating oscillating current energy conditions. THe Pliocene-Pleistocene sequence cored in the Ewing Bank Block 826 field in the Gulf of Mexico provides an example of sand distribution and reservoir quality of deep-marine bottom-current reworked sands. Presumably, the Loop Current, a strong wind-driven surface current in the Gulf of Mexico, impinged on the sea bottom, as it does today, and resulted in bottom-current reworked sands. A depositional model based on the integration of well (core and log) and three-dimensional seismic data suggests that the reworked sediment package may be thick and continuous, but individual sand layers within the package may be thin and discontinuous. This unconventional model, which depicts the distribution of bottom-current reworked sands in interchannel slope areas as a distinctly different facies from channel-levee facies, has the potential for general application to other slope plays outside the study area. In the Ewing Bank Block 826 field, the type I (L-1) reservoir with 80% sand exhibits higher permeability values (100-1800 md) than the type 2 (N-1) reservoir with 26% sand (50-800 md). The increased permeability in the type I sand has been attributed to high sand content, vigorous reworking, and microfractures. The clean, porous, and well-sorted type 1 sands with good communication between sand layers have produced at higher rates and recovery efficiencies than the type 2 sands with numerous interbedded mud layers. 50 refs., 22 figs., 1 tab.

Shanmugam, G. (Mobil Research and Development Corp., Dallas, TX (United States)); Spalding, T.D.; Rofheart, D.H. (Mobil New Business Development, Dallas, TX (United States))

1993-07-01T23:59:59.000Z

380

Enhanced oxygen storage capacity of Ce{sub 0.88}Mn{sub 0.12}O{sub y} compared to CeO{sub 2}: An experimental and theoretical investigation  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? Ce{sub 0.88}Mn{sub 0.12}O{sub y} and CeO{sub 2} hollow nanospheres were successfully prepared via a supercritical antisolvent process. ? Compared with the pure CeO{sub 2}, the Ce{sub 0.88}Mn{sub 0.12}O{sub y} has nearly the same surface area but more oxygen vacancies. ? DFT calculations shows that the surface oxygen of the CeO{sub 2} gets activated after doping Mn. -- Abstract: Ce{sub 0.88}Mn{sub 0.12}O{sub y} and CeO{sub 2} nanoparticles have been successfully prepared via a supercritical antisolvent process. High-resolution transmission electron microscopy displays the hollow and spherical structures of these nanoparticles. X-ray diffraction analysis demonstrates the formation of Ce{sub 0.88}Mn{sub 0.12}O{sub y} solid solution. N{sub 2} adsorption reveals that the Ce{sub 0.88}Mn{sub 0.12}O{sub y} has nearly the same surface area with the CeO{sub 2}. It is shown that the Ce{sub 0.88}Mn{sub 0.12}O{sub y} has higher oxygen storage capacity (OSC) than the CeO{sub 2}. To understand the mechanism of the improved OSC of the Mn doped CeO{sub 2}, Raman spectroscopy, X-ray photoelectron spectra and density functional theoretical (DFT) calculations have been performed. It is found that the Ce{sub 0.88}Mn{sub 0.12}O{sub y} presents more oxygen vacancies, indicating the easier of oxygen mobility from bulk to surface. DFT calculations reveal that structural and electronic modifications are caused by the incorporation of Mn in the CeO{sub 2}, resulting in activated oxygen species. The oxygen vacancy formation energy is lowered by the Mn doping. These changes are responsible for the enhanced OSC of the Ce{sub 0.88}Mn{sub 0.12}O{sub y}.

Zhang, Minhua; Jiang, Dongyu [Key Laboratory for Green Chemical Technology of Ministry of Education, R and D Center for Petrochemical Technology, Tianjin University, Tianjin 300072 (China)] [Key Laboratory for Green Chemical Technology of Ministry of Education, R and D Center for Petrochemical Technology, Tianjin University, Tianjin 300072 (China); Jiang, Haoxi, E-mail: hxjiang@tju.edu.cn [Key Laboratory for Green Chemical Technology of Ministry of Education, R and D Center for Petrochemical Technology, Tianjin University, Tianjin 300072 (China)] [Key Laboratory for Green Chemical Technology of Ministry of Education, R and D Center for Petrochemical Technology, Tianjin University, Tianjin 300072 (China)

2012-12-15T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

Occurrence of gas hydrate in Oligocene Frio sand: Alaminos Canyon Block 818: Northern Gulf of Mexico  

SciTech Connect (OSTI)

A unique set of high-quality downhole shallow subsurface well log data combined with industry standard 3D seismic data from the Alaminos Canyon area has enabled the first detailed description of a concentrated gas hydrate accumulation within sand in the Gulf of Mexico. The gas hydrate occurs within very fine grained, immature volcaniclastic sands of the Oligocene Frio sand. Analysis of well data acquired from the Alaminos Canyon Block 818 No.1 ('Tigershark') well shows a total gas hydrate occurrence 13 m thick, with inferred gas hydrate saturation as high as 80% of sediment pore space. Average porosity in the reservoir is estimated from log data at approximately 42%. Permeability in the absence of gas hydrates, as revealed from the analysis of core samples retrieved from the well, ranges from 600 to 1500 millidarcies. The 3-D seismic data reveals a strong reflector consistent with significant increase in acoustic velocities that correlates with the top of the gas-hydrate-bearing sand. This reflector extends across an area of approximately 0.8 km{sup 2} and delineates the minimal probable extent of the gas hydrate accumulation. The base of the inferred gas-hydrate zone also correlates well with a very strong seismic reflector that indicates transition into units of significantly reduced acoustic velocity. Seismic inversion analyses indicate uniformly high gas-hydrate saturations throughout the region where the Frio sand exists within the gas hydrate stability zone. Numerical modeling of the potential production of natural gas from the interpreted accumulation indicates serious challenges for depressurization-based production in settings with strong potential pressure support from extensive underlying aquifers.

Boswell, R.D.; Shelander, D.; Lee, M.; Latham, T.; Collett, T.; Guerin, G.; Moridis, G.; Reagan, M.; Goldberg, D.

2009-07-15T23:59:59.000Z

382

Creating a new, sustainable community on the University's 5,000-acre property U seeks public comment on Draft EIS for proposed UMore Park Sand and Gravel  

E-Print Network [OSTI]

comment on Draft EIS for proposed UMore Park Sand and Gravel Resources Project, open house scheduled Impact Statement (EIS) for its proposed Sand & Gravel Resources Project on approximately 1,722 acres approved the Draft Environmental Impact Statement (EIS) for the proposed UMore Park Sand and Gravel

Netoff, Theoden

383

Proactive Design of n-Type (In, Ce) Filled Skutterudites Enabling High-Temperature Waste Heat Recovery  

Broader source: Energy.gov [DOE]

Thermoelectric and structural properties of n-type (In, Ce) filled skutterudites including power factors and ZT as a function of temperature are presented

384

Mechanism of Methane Chemical Looping Combustion with Hematite Promoted with CeO2  

SciTech Connect (OSTI)

Chemical looping combustion (CLC) is a promising technology for fossil fuel combustion that produces sequestration-ready CO{sub 2} stream, reducing the energy penalty of CO{sub 2} separation from flue gases. An effective oxygen carrier for CLC will readily react with the fuel gas and will be reoxidized upon contact with oxygen. This study investigated the development of a CeO{sub 2}-promoted Fe{sub 2}O{sub 3}?hematite oxygen carrier suitable for the methane CLC process. Composition of CeO{sub 2} is between 5 and 25 wt % and is lower than what is generally used for supports in Fe{sub 2}O{sub 3} carrier preparations. The incorporation of CeO{sub 2} to the natural ore hematite strongly modifies the reduction behavior in comparison to that of CeO{sub 2} and hematite alone. Temperature-programmed reaction studies revealed that the addition of even 5 wt % CeO{sub 2} enhances the reaction capacity of the Fe{sub 2}O{sub 3} oxygen carrier by promoting the decomposition and partial oxidation of methane. Fixed-bed reactor data showed that the 5 wt % cerium oxides with 95 wt % iron oxide produce 2 times as much carbon dioxide in comparison to the sum of carbon dioxide produced when the oxides were tested separately. This effect is likely due to the reaction of CeO{sub 2} with methane forming intermediates, which are reactive for extracting oxygen from Fe{sub 2}O{sub 3} at a considerably faster rate than the rate of the direct reaction of Fe{sub 2}O{sub 3} with methane. These studies reveal that 5 wt % CeO{sub 2}/Fe{sub 2}O{sub 3} gives stable conversions over 15 reduction/oxidation cycles. Lab-scale reactor studies (pulsed mode) suggest the methane reacts initially with CeO{sub 2} lattice oxygen to form partial oxidation products (CO + H{sub 2}), which continue to react with oxygen from neighboring Fe{sub 2}O{sub 3}, leading to its complete oxidation to form CO{sub 2}. The reduced cerium oxide promotes the methane decomposition reaction to form C + H{sub 2}, which continue to react with Fe{sub 2}O{sub 3}/Fe{sub 3}O{sub 4} to form CO/CO{sub 2} and H{sub 2}O. This mechanism is supported by the characterization studies, which also suggest that the formation of carbonaceous intermediates may affect the reaction rate and selectivity of the oxygen carrier.

Miller, Duane D.; Siriwardane, Ranjani

2013-08-01T23:59:59.000Z

385

DFT+U Study of CeO2 and Its Native Defects  

E-Print Network [OSTI]

in solid state fuel cells2, as a catalyst3-6, as a high-dielectric constant gate oxide7, and in resistance random access memories (ReRAM)8. Many properties of CeO2 are determined by its intrinsic defects9-23 and the unusual behavior of the semi-core Ce 4f... averaging scheme46 for spin- orbital coupling effect. The RRKJ method is chosen as optimization of pseudopotentials47. The PBE functional was chosen for PBE+U calculations with a kinetic cutoff energy of 750eV, which expands the valence electrons states...

Huang, Bolong; Gillen, Roland; Robertson, John

2014-10-14T23:59:59.000Z

386

Comparative Study on Redox Properties of Nanosized CeO2 and CuO/Ce2 Under CO/O2  

SciTech Connect (OSTI)

Nanosized CeO{sub 2} and CuO/CeO{sub 2} samples, active for CO-PROX or related processes were comparatively examined by O{sub 2} probe electron paramagnetic resonance and in situ Raman and X-ray diffraction techniques. Their behavior toward CO reduction, as well as the oxygen-handling properties of the CO-reduced samples, was explored. An appreciable reduction of the ceria bulk was detected on treatment under CO at 473 K. On the basis of the analysis of the evolution of different oxygen-derived species (superoxide, peroxide, O-) on low-temperature (77-300 K) oxygen chemisorption on the CO-reduced samples, a general picture of the redox properties of the samples is presented. Results demonstrate that the presence of copper promotes completion of the redox cycle under CO/O{sub 2} by favoring both ceria reduction and oxidation. This can be relevant to explaining the remarkable oxidation activity and synergetic effects observed for catalysts combining CuO and CeO{sub 2}.

Martinez-Arias,A.; Gamarra, D.; Fernandez-Garcia, M.; Wang, X.; Hanson, J.; Rodriguez, J.

2006-01-01T23:59:59.000Z

387

Method of producing drive fluid in situ in tar sands formations  

DOE Patents [OSTI]

Methods of treating a tar sands formation are described herein. Methods for treating a tar sands may include providing heat to at least part of a hydrocarbon layer in the formation from one or more heaters located in the formation. The heat may be allowed to transfer from the heaters to at least a portion of the formation such that a drive fluid is produced in situ in the formation. The drive fluid may move at least some mobilized, visbroken, and/or pyrolyzed hydrocarbons from a first portion of the formation to a second portion of the formation. At least some of the mobilized, visbroken, and/or pyrolyzed hydrocarbons may be produced from the formation.

Mudunuri, Ramesh Raju (Houston, TX); Jaiswal, Namit (Houston, TX); Vinegar, Harold J. (Bellaire, TX); Karanikas, John Michael (Houston, TX)

2010-03-23T23:59:59.000Z

388

Sand transverse dune aerodynamics: 3D Coherent Flow Structures from a computational study  

E-Print Network [OSTI]

The engineering interest about dune fields is dictated by the their interaction with a number of human infrastructures in arid environments. The aerodynamic behaviour of sand dunes in atmospheric boundary layer belongs to the class of bluff bodies. Because of their simple geometry and their frequent occurrence in desert area, transverse sand dunes are usually adopted in literature as a benchmark to investigate dune aerodynamics by means of both computational or experimental approach, usually in nominally 2D setups. The writers suspect the flow in the wake is characterised by 3D features and affected by wind tunnel setup - e.g. blockage effect, duct side wall boundary layer, incoming velocity profile - when experimental studies are carried out. The present study aims at evaluating the 3D flow features of an idealised transverse dune under different setup conditions by means of computational simulations and to compare the obtained results with experimental measurements.

Bruno, Luca

2015-01-01T23:59:59.000Z

389

Advanced secondary recovery project for the Sooner D Sand Unit, Weld County, Colorado: Final report  

SciTech Connect (OSTI)

The objective of this project was to increase production at the Sooner D Sand Unit through geologically targeted infill drilling and improved reservoir management of waterflood operations. The Sooner D Sand Unit demonstration project should be an example for other operators to follow for reservoir characterization and exploitation methodologies to increase production by waterflood from the Cretaceous D Sandstone in the Denver-Julesburg (D-J) Basin. This project involved multi-disciplinary reservoir characterization using high-density 3D seismic, detailed stratigraphy and reservoir simulation studies. Infill drilling, water-injection conversion and re-completing some wells to add short-radius laterals were based on the results of the reservoir characterization studies. Production response were evaluated using reservoir simulation and production tests. Technology transfer utilized workshops, presentations and technical papers which emphasized the economic advantages of implementing the demonstrated technologies.

Sippel, M.A.; Cammon, T.J.

1986-06-01T23:59:59.000Z

390

A study of Poisson's ratio and the elastic and plastic properties of Ottawa sand  

E-Print Network [OSTI]

in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Mayq 1957 Ma)or Sub)acts Civil Engineering A STUDY OF POISSON'S RATIO AND THE ELASTIC AND PLASTIC PROPERTIES OF OTTAWA SAND A Thesis ROSERT RENT WZmne Captain, Corps...' IHTRODUCTIOS Engineering achievements have paced the rise oi civilization through the ages. Today the cries for greater strength, capacity and economy are heard with ever increasing frequency. Transportation and defense requirements have never lagged...

Werner, Robert Rehm

1957-01-01T23:59:59.000Z

391

Unconventional gas resources. [Eastern Gas Shales, Western Gas Sands, Coalbed Methane, Methane from Geopressured Systems  

SciTech Connect (OSTI)

This document describes the program goals, research activities, and the role of the Federal Government in a strategic plan to reduce the uncertainties surrounding the reserve potential of the unconventional gas resources, namely, the Eastern Gas Shales, the Western Gas Sands, Coalbed Methane, and methane from Geopressured Aquifers. The intent is to provide a concise overview of the program and to identify the technical activities that must be completed in the successful achievement of the objectives.

Komar, C.A. (ed.)

1980-01-01T23:59:59.000Z

392

Tar sand extraction by steam stimulation and steam drive: measurement of physical properties  

SciTech Connect (OSTI)

The measurement of the following thermophysical properties of Utah tar sands is in progress: thermal conductivity, specific heat relative permeability, and viscosity (of the recovered bitumen). During the report period (October 1, 1978 to November 1, 1979), experimental procedures have been developed and a basic data set has been measured. Additionally, standard core analysis has been performed for four drill sites in the Asphalt Ridge, Utah area.

Linberg, W.R.

1980-09-10T23:59:59.000Z

393

Observation of Strong Resonant Behavior in the Inverse Photoelectron Spectroscopy of Ce Oxide  

SciTech Connect (OSTI)

X-ray Emission Spectroscopy (XES) and Resonant Inverse Photoelectron Spectroscopy (RIPES) have been used to investigate the photon emission associated with the Ce3d5/2 and Ce3d3/2 thresholds. Strong resonant behavior has been observed in the RIPES of Ce Oxide near the 5/2 and 3/2 edges. Inverse Photoelectron Spectroscopy (IPES) and its high energy variant, Bremstrahlung Isochromat Spectroscopy (BIS), are powerful techniques that permit a direct interrogation of the low-lying unoccupied electronic structure of a variety of materials. Despite being handicapped by counting rates that are approximately four orders of magnitude less that the corresponding electron spectroscopies (Photoelectron Spectroscopy, PES, and X-ray Photoelectron Spectroscopy, XPS) both IPES and BIS have a long history of important contributions. Over time, an additional variant of this technique has appeared, where the kinetic energy (KE) of the incoming electron and photon energy (hv) of the emitted electron are roughly the same magnitude as the binding energy of a core level of the material in question. Under these circumstances and in analogy to Resonant Photoelectron Spectroscopy, a cross section resonance can occur, giving rise to Resonant Inverse Photoelectron Spectroscopy or RIPES. Here, we report the observation of RIPES in an f electron system, specifically the at the 3d{sub 5/2} and 3d{sub 3/2} thresholds of Ce Oxide. The resonant behavior of the Ce4f structure at the 3d thresholds has been addressed before, including studies of the utilization of the technique as a probe of electron correlation in a variety of Ce compounds. Interestingly, the first RIPES work on rare earths dates back to 1974, although under conditions which left the state of the surface and near surface regions undefined. Although they did not use the more modern terminology of 'RIPES,' it is clear that RIPES was actually first performed in 1974 by Liefeld, Burr and Chamberlain on both La and Ce based materials. In these experiments, the La and Ce metallic samples were attached to the anode of an x-ray tube and the x-ray emission characteristics were measured using a two crystal monochromator. The pressure in the x-ray tube was quoted as being below 2 x 10{sup -8} Torr. They did indeed observed resonant behavior at the M{alpha} (3d{sub 5/2}) and M{beta} (3d{sub 3/2}) thresholds. In fact, our results here will confirm the measurements made upon the Ce based sample used in by Liefeld et al. However, the state of the Ce sample surface and near surface regions are quite undefined in the study in Ref 9. For example, the authors suggest that they are probing Ce metal, since they cannot see any evidence of an OK{alpha} (1s) XES line. However, they do report the observation of FK{alpha} (1s) line, possibly due to the utilization of cerium fluoride in the sample preparation. Later, they tried to address these issues in a new ultrahigh vacuum system. Based upon our results, it is clear that their original sample surface was oxidized, using the word here in its more general context as in having lost electrons to the oxidizing agent, although whether the structure is an oxide or fluoride remains unclear. In any case, the primacy of Liefeld and coworkers in these measurements should be noted. Cerium and cerium oxide have been studied with a variety of spectroscopic techniques under UHV conditions. This includes Bremstrahlung Isochromat Spectroscopy or BIS, Photoelectron Spectroscopy, X-ray Absorption Spectroscopy, Electron Energy Loss Spectroscopy and Resonant XES, to name just a few. We will compare our results to those of other spectroscopies.

Tobin, J G; Yu, S W; Chung, B W; Waddill, G D; Damian, E; Duda, L; Nordgren, J

2009-12-15T23:59:59.000Z

394

Overseas Affairs and Planning Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University  

E-Print Network [OSTI]

Contact: Overseas Affairs and Planning Institute for Integrated Cell-Material Sciences (i Cell-Material Sciences, iCeMS for short, I welcome you to the Seventh iCeMS International Symposium to develop them through evolution. They are also very important to design and create various novel "smart

Takada, Shoji

395

509Currey & Poulin--Parasites and sand hopper burrowing Do parasites affect burrowing depth and habitat choice of  

E-Print Network [OSTI]

1990). through their supralittoral detritivory, feeding on stranded kelp and prodigious burrowing activity, they facilitate the reincorporation of nutrients upon which sediment bacteria and meiofauna rely (Brown 2001). Sand hoppers are primarily nocturnal, burrowing beneath stranded kelp during the day

Poulin, Robert

396

Composition of modern sand from the Sierra Nevada, California, USA: Implications for actualistic petrofacies of continental-margin magmatic arcs  

E-Print Network [OSTI]

modern and ancient source rocks: Geology, v. 18, p. 733736.sand composition and source-rock type, and the secondaryrock types, including Paleozoic and Mesozoic metamorphic terranes, and Cenozoic volcanic cover, is a source

Ingersoll, Raymond V.; Eastmond, Daniel J.

2007-01-01T23:59:59.000Z

397

HYDROLOGY AND EROSION IMPACTS OF MINING DERIVED COASTAL SAND DUNES, C H ~ A R A LBAY, CHILE  

E-Print Network [OSTI]

HYDROLOGY AND EROSION IMPACTS OF MINING DERIVED COASTAL SAND DUNES, C H ~ A R A LBAY, CHILE Daniel, nitrates, iodine, and lithium. Some of the gold and silverandallofthemolybdenumareproducedasby- products

398

Ecological Responses to Hydrogeomorphic Fluctuations in a Sand Bed Prairie River: River Complexity, Habitat Availability, and Benthic Invertebrates  

E-Print Network [OSTI]

Rivers with stochastic precipitation have fauna that overcome unique challenges. Organisms surmount these challenges by using refugia. Research was conducted on the sand bed Kansas River (Kaw). I (a) quantified how the hydrology affects the Kaw...

O'Neill, Brian James

2010-04-02T23:59:59.000Z

399

AIAA paper AIAA-2009-2249, SAND Report: 2008-5360A American Institute of Aeronautics and Astronautics  

E-Print Network [OSTI]

AIAA paper AIAA-2009-2249, SAND Report: 2008-5360A American Institute of Aeronautics, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security

400

Wave-formed sand ripples at Duck, North Carolina Daniel M. Hanes, Vadim Alymov, and Yeon S. Chang  

E-Print Network [OSTI]

Wave-formed sand ripples at Duck, North Carolina Daniel M. Hanes, Vadim Alymov, and Yeon S. Chang], Osborne and Vincent [1993], Vincent and Osborne [1993], Hay and Wilson [1994], Wheatcroft [1994], Thornton

Kirby, James T.

Note: This page contains sample records for the topic "monazite sand ce" 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

Diamonds in the rough: identification of individual napthenic acids in oil sands process water  

SciTech Connect (OSTI)

Expansion of the oil sands industry of Canada has seen a concomitant increase in the amount of process water produced and stored in large lagoons known as tailings ponds. Concerns have been raised, particularly about the toxic complex mixtures of water-soluble naphthenic acids (NA) in the process water. To date, no individual NA have been identified, despite numerous attempts, and while the toxicity of broad classes of acids is of interest, toxicity is often structure-specific, so identification of individual acids may also be very important. The chromatographic resolution and mass spectral identification of some individual NA from oil sands process water is described. The authors concluded that the presence of tricyclic diamondoid acids, never before even considered as NA, suggests an unprecedented degree of biodegradation of some of the oil in the oil sands. The identifications reported should now be followed by quantitative studies, and these used to direct toxicity assays of relevant NA and the method used to identify further NA to establish which, or whether all NA, are toxic. The two-dimensional comprehensive gas chromatography-mass spectrometry method described may also be important for helping to better focus reclamation/remediation strategies for NA as well as in facilitating the identification of the sources of NA in contaminated surface waters (auth)

Rowland, Steven J.; Scarlett, Alan G.; Jones, David; West, Charles E. (Petroleum and Environmental Geochemistry Group, Biogeochemistry Research Centre, University of Plymouth (United Kingdom)); Frank, Richard A. (Aquatic Ecosystems Protection Research Division-Water Science and Technology Directorate, Environment Canada, Burlington, Ontario (Canada)

2011-03-10T23:59:59.000Z

402

Recovery of heavy crude oil or tar sand oil or bitumen from underground formations  

SciTech Connect (OSTI)

This patent describes a method of producing heavy crude oil or tar sand oil or bitumen from an underground formation. The method consists of utilizing or establishing an aqueous fluid communication path within and through the formation between an injection well or conduit and a production well or conduit by introducing into the formation from the injection well or conduit hot water and/or low quality steam at a temperature in the range about 60{sup 0}-130{sup 0}C and at a substantially neutral or alkaline pH to establish or enlarge the aqueous fluid communication path within the formation from the injection well or conduit to the production well or conduit by movement of the introduced hot water or low quality steam through the formation, increasing the temperature of the injected hot water of low quality steam to a temperature in the range about 110{sup 0}-180{sup 0}C while increasing the pH of the injected hot water or low quality steam to a pH of about 10-13 so as to bring about the movement or migration or stripping of the heavy crude oil or tar sand oil or bitumen from the formation substantially into the hot aqueous fluid communication path with the formation and recovering the resulting produced heavy crude oil or tar sand oil or bitumen from the formation as an emulsion containing less than about 30% oil or bitumen from the production well or conduit.

McKay, A.S.

1989-07-11T23:59:59.000Z

403

Solubility of carbon dioxide in tar sand bitumen; Experimental determination and modeling  

SciTech Connect (OSTI)

This paper reports on an understanding of the solubility of carbon dioxide (CO{sub 2}) in tar sand bitumen that is essential for the development of in situ processes in the recovery of bitumen from tar and deposits. The solubility of CO{sub 2} in the Tar Sand Triangle (Utah), the PR Spring Rainbow I (Utah), and the Athabasca (Canada) tar sand bitumens was determined with the use of a high-pressure microbalance at temperatures of 358.2 and 393.2 K and pressures up to 6.2 MPa. As expected, the solubilities increased with pressure at a given temperature and decreased with increases in temperature. The Peng--Robinson and the Schmidt--Wenzel equations of state were used to match the experimentally observed solubilities. Correlations for the interaction parameters between CO{sub 2} and the bitumen were developed for both equations of state, wherein the interaction parameter could be obtained by using specific gravity and the UOP {ital K} factor for the bitumen. The correlations were developed with the optimum interaction parameters obtained for each of the samples at each temperature.

Deo, M.D.; Wang, C.J.; Hanson, F.V. (Dept. of Fuels Engineering, Univ. of Utah, Salt Lake City, UT (US))

1991-03-01T23:59:59.000Z

404

Global Sea Level Stabilization-Sand Dune Fixation: A Solar-powered Sahara Seawater Textile Pipeline  

E-Print Network [OSTI]

Could anthropogenic saturation with pumped seawater of the porous ground of active sand dune fields in major deserts (e.g., the westernmost Sahara) cause a beneficial reduction of global sea level? Seawater extraction from the ocean, and its deposition on deserted sand dune fields in Mauritania and elsewhere via a Solar-powered Seawater Textile Pipeline (SSTP) can thwart the postulated future global sea level. Thus, Macro-engineering offers an additional cure for anticipated coastal change, driven by global sea level rise, that could supplement, or substitute for (1) stabilizing the shoreline with costly defensive public works (armoring macroprojects) and (2) permanent retreat from the existing shoreline (real and capital property abandonment). We propose Macro-engineering use tactical technologies that sculpt and vegetate barren near-coast sand dune fields with seawater, seawater that would otherwise, as commonly postulated, enlarge Earth seascape area! Our Macro-engineering speculation blends eremology with hydrogeology and some hydromancy. We estimate its cost at 1 billion dollars - about 0.01 per sent of the USA 2007 Gross Domestic Product.

Viorel Badescu; Richard B. Cathcart; Alexander A. Bolonkin

2007-07-21T23:59:59.000Z

405

Oil shale, tar sand, coal research, advanced exploratory process technology jointly sponsored research  

SciTech Connect (OSTI)

Accomplishments for the quarter are presented for the following areas of research: oil shale, tar sand, coal, advanced exploratory process technology, and jointly sponsored research. Oil shale research includes; oil shale process studies, environmental base studies for oil shale, and miscellaneous basic concept studies. Tar sand research covers process development. Coal research includes; underground coal gasification, coal combustion, integrated coal processing concepts, and solid waste management. Advanced exploratory process technology includes; advanced process concepts, advanced mitigation concepts, and oil and gas technology. Jointly sponsored research includes: organic and inorganic hazardous waste stabilization; development and validation of a standard test method for sequential batch extraction fluid; operation and evaluation of the CO[sub 2] HUFF-N-PUFF Process; fly ash binder for unsurfaced road aggregates; solid state NMR analysis of Mesa Verde Group, Greater Green River Basin, tight gas sands; flow-loop testing of double-wall pipe for thermal applications; characterization of petroleum residue; shallow oil production using horizontal wells with enhanced recovery techniques; and menu driven access to the WDEQ Hydrologic Data Management Systems.

Not Available

1992-01-01T23:59:59.000Z

406

History of development and depositional environment and upper Cherokee Prue Sand, Custer and Roger Mills counties, Oklahoma  

SciTech Connect (OSTI)

In western Oklahoma the uppermost sand member of the Cherokee Group, the True sand, was first drilled and found productive in two discoveries, completed in 1980, in west-central Custer County and in central Roger Mills County, Oklahoma. For 1 1/2 to 2 years these two discoveries, some 18 mi (29 km) apart, were thought to be stratigraphic equivalents of two separate sand bodies occurring parallel to the classic northwest-southeast-trending systems of the Anadarko basin. At present, some 40 productive wells will ultimately produce more than 100 bcf of gas and 3 million bbl of condensate from an average depth of 11,500 ft (3500 m). Sand porosities range from 3 to 18% with most producing wells having porosities in the 12 to 15% range. Because Prue sand is slightly overpressured (a pressure gradient of .53 psi/foot), the reserves are generally better than normal-pressured wells at this depth. The sand body is over 40 mi (64 km) in length, 1 to 1.5 mi (1.6 to 2.4 km) wide, and 60 ft (18 m) thick. Study of the core shows the interval to grade from a medium to fine-grained sand, highly laminated and cross-bedded with black shale, to a slightly coarser grained nonstructured interval and back into a highly laminated cross-bedded sandy black shale interval. The interval is topped by a 10 ft (3 m) thick black shale layer that is a predominant bed throughout the whole area. These conclusions have implications that may assist in the exploration of other Pennsylvanian sands in this area.

Baumann, D.K.; Peterson, M.L.; Hunter, L.W.

1983-03-01T23:59:59.000Z

407

Deep-water bottom-current reworked sands: Their recognition and reservoir potential, northern Gulf of Mexico  

SciTech Connect (OSTI)

Some Pliocene and Pleistocene reservoir sands in intraslope basins of the northern Gulf of Mexico exhibit features that are interpreted to be indicative of reworking by deep-water (bathyal) bottom currents (contour currents). These fine sands have previously been interpreted as turbidites associated with levee overbanks and lobes of submarine fan complexes; however, sedimentological features characteristic of turbidites are rare in these laminated sands. Common features observed are (1) numerous (up to 75 layers/m) thin (<2 cm) sand layers, (2) sharp upper contacts, (3) inverse grading, (4) current ripples, (5) lenticular bedding, (6) flaser bedding, (7) bidirectional cross-lamination, and (8) sigmoidal bed forms with mud drapes (i.e., mud offshoots). These features, dominated by traction structures, can be explained by reworking of overbank turbidite sands by deep-bottom currents. In the present Gulf of Mexico, the surface Loop Current is considered to be a major cause of deep circulation. The authors propose that similar bottom currents and perhaps minor deep tidal currents existed during Pliocene and Pleistocene times. The entire sediment package may be thick and continuous, but individual sand layers within the package are thin and discontinuous. Porosity values of these sands range from 27 to 40%, and permeability ranges from 100 to 2,000 md at 200 psi. In seismic profiles or seismic facies maps, it is difficult to distinguish the reworked sands from turbidites. Therefore, geologic models based on core and process sedimentology are the key to a better understanding of these often misinterpreted complex reservoir facies.

Shanmugam, G. (Mobil Research and Development Corp., Dallas, TX (USA)); Spalding, T.D.; Kolb, R.A.; Lockrem, T.M. (Mobil Exploration and Producing Inc., New Orleans, LA (USA))

1990-05-01T23:59:59.000Z

408

A study of the plastic and elastic strain characteristics of an angular and well-graded sand experiencing cyclic loading  

E-Print Network [OSTI]

A ST%K OP THE PLASTIC AND ELASTIC STRAIN CHARACTERISTICS OF AN ANOULAR AND WELL ARAXSD SAND EXPERXENCIN6 CYCLIC LOADIN6 A Thesis By WILLIAM FRANK SPENCER, ZR. Subnitted to the Graduate School of the Agricultural and Mechanical College... of Texas partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 1957 Major Sub/acti Civil Engineering A STOVES OF THE PLASTIC AND ELASTIC STRAIN CHARACTERISTICS OP AN ANOULAR AND WELL SRAXED SAND EXPERIENCING CYCLIC...

Spencer, William Frank

1957-01-01T23:59:59.000Z

409

Laser Surface Modification of a Crystalline Al-Co-Ce Alloy for Enhanced Corrosion  

E-Print Network [OSTI]

#12;Laser Surface Modification of a Crystalline Al-Co-Ce Alloy for Enhanced Corrosion Resistance hardness, structure manipula- tion, and improvements in corrosion resistance of metallic materials.[1 surface modify steel and aluminum alloys for improved corrosion resistance.[3,4] The enhanced corrosion

Fitz-Gerald, James M.

410

Logiciel de Gestion de Version Qu'est-ce qu'un Version Control System (VCS) ?  

E-Print Network [OSTI]

Logiciel de Gestion de Version Git Qu'est-ce qu'un Version Control System (VCS) ? Appel galement Logiciel de Gestion de Rvision (RCS), un VCS est un outil qui permet de : de suivre l'volution d revenir en arrire en cas de problme ; de retenir qui a effectu chaque modification de chaque fichier

Tichit, Laurent

411

CeSOS Highlights and AMOS Visions 27-29th May 2013 Aurlien Babarit  

E-Print Network [OSTI]

2013 Criteria for comparison > The true criterion is cost of kWh. > kWh (power production) can absorption Income side of COE The higher the power absorption per unit, the less the installation cost a limit to the allowed cost for viability #12;A. Babarit CeSOS Highlights and AMOS Visions 27-29th May

Nrvg, Kjetil

412

COMMENT LES NANOTUBES DE CARBONE INTERAGISSENT AVEC LES MACROPHAGES : CE QUE NOUS DIT LA MICROFLUORESCENCE X  

E-Print Network [OSTI]

COMMENT LES NANOTUBES DE CARBONE INTERAGISSENT AVEC LES MACROPHAGES : CE QUE NOUS DIT LA. Boczkowski (INSERM). Réf. : Nano Lett. 8 (9), 2659-2663 (2008). Les nanotubes de carbone présentent des utilisée jusqu'alors pour étudier des nanotubes de carbone. Nous avons choisi d'étudier différentes sortes

Paris-Sud 11, Université de

413

In situ corrosion analysis of Al-Zn-In-Mg-Ti-Ce sacrificial anode alloy  

SciTech Connect (OSTI)

The corrosion behaviour of Al-5Zn-0.02In-1Mg-0.05Ti-0.5Ce (wt.%) alloy has been investigated by immersion test, scanning electron microscopy, energy dispersive X-ray detector, electrochemical impedance spectroscopy and electrochemical noise. The results show that there exist different corrosion types of the alloy in 3.5% NaCl solution with the immersion time. At the initial stage of immersion, pitting due to the precipitates predominates the corrosion with a typical inductive loop at low frequencies in electrochemical impedance spectroscopy. The major precipitates of the alloy are MgZn{sub 2} and Al{sub 2}CeZn{sub 2} particles. The corrosion potentials of the bulk MgZn{sub 2} and Al{sub 2}CeZn{sub 2} alloys are negative with respect to that of {alpha}-Al, so the MgZn{sub 2} and Al{sub 2}CeZn{sub 2} precipitates can act as activation centre and cause the pitting. In the late corrosion, a relative uniform corrosion predominates the corrosion process controlled by the dissolution/precipitation of the In ions and characterized by a capacitive loop at medium-high frequencies in electrochemical impedance spectroscopy. The potential noise of the pitting shows larger amplitude fluctuation and lower frequency, but the potential noise of the uniform corrosion occurs with smaller amplitude fluctuation and higher frequency.

Ma Jingling, E-mail: majingling.student@sina.com; Wen Jiuba; Zhai Wenxia; Li Quanan

2012-03-15T23:59:59.000Z

414

The CompuTer SCienCe program The bachelor of science degree in computer science  

E-Print Network [OSTI]

The CompuTer SCienCe program The bachelor of science degree in computer science offered by the Watson School is accredited by the Computing Accreditation Commission of ABET Inc. (mailing address: 111 in the fundamentals of computer science, elements of practical application and an appreciation for liberal learning

Suzuki, Masatsugu

415

Energy Based Methods in Wind Turbine Control CeSOS Highlights and AMOS Visions  

E-Print Network [OSTI]

Energy Based Methods in Wind Turbine Control CeSOS Highlights and AMOS Visions Morten D. Pedersen 1 / 26 #12;This talk 1 Background 2 Understanding the Wind Turbine 3 Nonlinear Turbine Modeling 4;Background The Problem Previously stable wind turbine systems began exhibiting resonant behavior when put

Nørvåg, Kjetil

416

CE990 Graduate Seminar Presentations The presentation materials shown in this file were prepared by graduate  

E-Print Network [OSTI]

cord · 10% fabric 4 #12;Thermal ConductivityThermal Conductivity · Low thermal conductivity of 0.242W conventional aggregatesconventional aggregates 5 #12;Thermal ConductivityThermal Conductivity ··Shredded tireCE990 Graduate Seminar Presentations DISCLAIMER The presentation materials shown in this file were

Saskatchewan, University of

417

Author's personal copy Prepration and photoluminescence properties of Ce doped lutetium silicate  

E-Print Network [OSTI]

Author's personal copy Prepration and photoluminescence properties of Ce doped lutetium silicate silicate Cerium Solegel Photoluminescence Lu2SiO5 a b s t r a c t Cerium doped lutetium silicate powders%). The synthesized lutetium silicate powders were investigated by X-ray diffraction (XRD), TG-DTA, SEM

Cao, Guozhong

418

Unusual Physical and Chemical Properties of Cu in Ce1-xCuxO2 Oxides  

SciTech Connect (OSTI)

The structural and electronic properties of Ce{sub 1-x}Cu{sub x}O{sub 2} nano systems prepared by a reverse microemulsion method were characterized with synchrotron-based X-ray diffraction, X-ray absorption spectroscopy, Raman spectroscopy, and density functional calculations. The Cu atoms embedded in ceria had an oxidation state higher than those of the cations in Cu{sub 2}O or CuO. The lattice of the Ce{sub 1-x}Cu{sub x}O{sub 2} systems still adopted a fluorite-type structure, but it was highly distorted with multiple cation-oxygen distances with respect to the single cation-oxygen bond distance seen in pure ceria. The doping of CeO{sub 2} with copper introduced a large strain into the oxide lattice and favored the formation of O vacancies, leading to a Ce{sub 1-x}Cu{sub x}O{sub 2-y} stoichiometry for our materials. Cu approached the planar geometry characteristic of Cu(II) oxides, but with a strongly perturbed local order. The chemical activities of the Ce{sub 1-x}Cu{sub x}O{sub 2} nanoparticles were tested using the reactions with H2 and O2 as probes. During the reduction in hydrogen, an induction time was observed and became shorter after raising the reaction temperature. The fraction of copper that could be reduced in the Ce{sub 1-x}Cu{sub x}O{sub 2} oxides also depended strongly on the reaction temperature. A comparison with data for the reduction of pure copper oxides indicated that the copper embedded in ceria was much more difficult to reduce. The reduction of the Ce{sub 1-x}Cu{sub x}O{sub 2} nanoparticles was rather reversible, without the generation of a significant amount of CuO or Cu{sub 2}O phases during reoxidation. This reversible process demonstrates the unusual structural and chemical properties of the Cu-doped ceria materials.

Wang,X.; Rodriguez, J.; Hanson, J.; Gamarra, D.; Martinez-Arias, A.; Fernandez-Garcia, M.

2005-01-01T23:59:59.000Z

419

Phase relations and crystal structures in the system Ce-Ni-Zn at 800 Degree-Sign C  

SciTech Connect (OSTI)

Phase relations have been established for the system Ce-Ni-Zn in the isothermal section at 800 Degree-Sign C using electron microprobe analysis and X-ray powder diffraction. Phase equilibria at 800 Degree-Sign C are characterized by a large region for the liquid phase covering most of the Ce-rich part of the diagram, whereas a Zn-rich liquid is confined to a small region near the Zn-corner of the Gibbs triangle. Whereas solubility of Ce in the binary Ni-Zn phases is negligible, mutual solubilities of Ni and Zn at a constant Ce content are large at 800 Degree-Sign C for most Ce-Zn and Ce-Ni compounds. The solid solution Ce(Ni{sub 1-x}Zn{sub x}){sub 5} with the CaCu{sub 5}-type is continuous throughout the entire section and for the full temperature region from 400 to 800 Degree-Sign C. Substitution of Zn by Ni is found to stabilize the structure of CeZn{sub 11} to higher temperatures. At 800 Degree-Sign C Ce(Ni{sub x}Zn{sub 1-x}){sub 11} (0.03{<=}x{<=}0.22) appears as a ternary solution phase. Similarly, a rather extended solution forms for Ce{sub 2}(Ni{sub x}Zn{sub 1-x}){sub 17} (0{<=}x{<=}0.53). Detailed data on atom site occupation and atom parameters were derived from X-ray structure analyses for single crystals of Ce{sub 2+y}(Ni{sub x}Zn{sub 1-x}){sub 17}, y=0.02, x=0.49 (a=0.87541(3), c=1.25410(4) nm; Th{sub 2}Zn{sub 17} type with space group R3{sup Macron }m,R{sub F{sup 2}}=0.018) and Ce(Ni{sub 0.18}Zn{sub 0.82}){sub 11} (a=1.04302(2), c=0.67624(3)nm, BaCd{sub 11} type with space group I4{sub 1}/amd, R{sub F{sup 2}}=0.049). - Graphical abstract: Ce-Ni-Zn isothermal section at 800 Degree-Sign C. Highlights: Black-Right-Pointing-Pointer Phase relations were determined for the system Ce-Ni-Zn in the section at 800 Degree-Sign C. Black-Right-Pointing-Pointer A continuous solid solution Ce(Ni{sub 1-x}Zn{sub x}){sub 5}, 0{<=}x{<=}1, forms between 400 and 800 Degree-Sign C. Black-Right-Pointing-Pointer Zn/Ni substitution stabilizes the ternary phase Ce(Zn{sub 1-x}Ni{sub x}){sub 11}, 0.03{<=}x{<=}0.22, 800 Degree-Sign C. Black-Right-Pointing-Pointer An extended solution forms for Ce{sub 2}(Ni{sub x}Zn{sub 1-x}){sub 17} (0{<=}x{<=}0.53). Black-Right-Pointing-Pointer Crystal data are given: Ce{sub 2+y}(Ni{sub x}Zn{sub 1-x}){sub 17} (Th{sub 2}Zn{sub 17}), Ce(Ni{sub 0.18}Zn{sub 0.82}){sub 11} (BaCd{sub 11}).

Malik, Z.; Grytsiv, A. [Institute of Physical Chemistry, University of Vienna, Waehringerstrasse 42, A-1090 Vienna (Austria)] [Institute of Physical Chemistry, University of Vienna, Waehringerstrasse 42, A-1090 Vienna (Austria); Rogl, P., E-mail: peter.franz.rogl@univie.ac.at [Institute of Physical Chemistry, University of Vienna, Waehringerstrasse 42, A-1090 Vienna (Austria); Giester, G. [Institute of Mineralogy and Crystallography, University of Vienna, Althanstrasse 14, A-1090 Vienna (Austria)] [Institute of Mineralogy and Crystallography, University of Vienna, Althanstrasse 14, A-1090 Vienna (Austria)

2012-10-15T23:59:59.000Z

420

Size Effect on Nuclear Gamma-Ray Energy Spectra Acquired by Different Sized CeBr3, LaBr3:Ce, and NaI:Tl Gamma-Ray Detectors  

SciTech Connect (OSTI)

Gamma-ray energy spectra were acquired for different sizes of cerium tribromide (CeBr3), cerium-doped lanthanum tribromide (LaBr3:Ce), and thallium-doped sodium iodide (NaI:Tl) detectors. A comparison was conducted of the energy resolution and detection efficiency of these scintillator detectors for different sizes of detectors. The results of this study are consistent with the observation that for each size detector, LaBr3:Ce offers better resolution than either a CeBr3 or NaI:Tl detector of the same size. In addition, CeBr3 and LaBr3:Ce detectors could resolve some closely spaced peaks in the spectra of several radioisotopes that NaI:Tl could not. As the detector size increased, all three detector materials exhibited higher efficiency, albeit with slightly reduced resolution. Significantly, the very low intrinsic activity of CeBr3 is also demonstrated in this study, which, when combined with energy resolution characteristics for a range of detector sizes, could lead to an improved ability to detect special nuclear materials compared to the other detectors.

Guss, Paul [NSTec; Reed, Michael [NSTec; Yuan, Ding [NSTec; Beller, Denis [UNLV; Cutler, Matthew [UNLV; Contreras, Chris [UNLV; Mukhopadhyay, Sanjoy [NSTec; Wilde, Scott UNLV

2014-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

Data:678ce1a9-73c5-4299-aa54-b70f702c53ce | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office695810186 No revision has been approvedea02758d3 No revision has1574de6f No revisionb70f702c53ce No revision has

422

Data:Ce155644-3dbb-44ce-80f8-79eb97a58f0a | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onb5-dcc1fcffd1f2bb71-d4159a938742e80b26cc4 Nodbb-44ce-80f8-79eb97a58f0a No revision has been approved for this page. It

423

Class I cultural resource overview for oil shale and tar sands areas in Colorado, Utah and Wyoming.  

SciTech Connect (OSTI)

In August 2005, the U.S. Congress enacted the Energy Policy Act of 2005, Public Law 109-58. In Section 369 of this Act, also known as the 'Oil Shale, Tar Sands, and Other Strategic Unconventional Fuels Act of 2005', Congress declared that oil shale and tar sands (and other unconventional fuels) are strategically important domestic energy resources that should be developed to reduce the nation's growing dependence on oil from politically and economically unstable foreign sources. The Bureau of Land Management (BLM) is developing a Programmatic Environmental Impact Statement (PEIS) to evaluate alternatives for establishing commercial oil shale and tar sands leasing programs in Colorado, Wyoming, and Utah. This PEIS evaluates the potential impacts of alternatives identifying BLM-administered lands as available for application for commercial leasing of oil shale resources within the three states and of tar sands resources within Utah. The scope of the analysis of the PEIS also includes an assessment of the potential effects of future commercial leasing. This Class I cultural resources study is in support of the Draft Oil Shale and Tar Sands Resource Management Plan Amendments to Address Land Use Allocations in Colorado, Utah, and Wyoming and Programmatic Environmental Impact Statement and is an attempt to synthesize archaeological data covering the most geologically prospective lands for oil shale and tar sands in Colorado, Utah, and Wyoming. This report is based solely on geographic information system (GIS) data held by the Colorado, Utah, and Wyoming State Historic Preservation Offices (SHPOs). The GIS data include the information that the BLM has provided to the SHPOs. The primary purpose of the Class I cultural resources overview is to provide information on the affected environment for the PEIS. Furthermore, this report provides recommendations to support planning decisions and the management of cultural resources that could be impacted by future oil shale and tar sands resource development.

O'Rourke, D.; Kullen, D.; Gierek, L.; Wescott, K.; Greby, M.; Anast, G.; Nesta, M.; Walston, L.; Tate, R.; Azzarello, A.; Vinikour, B.; Van Lonkhuyzen, B.; Quinn, J.; Yuen, R.; Environmental Science Division

2007-11-01T23:59:59.000Z

424

Sand Castle  

E-Print Network [OSTI]

. Bodie's smile was unrepentant. "Sorry, sir." "Ach, get out of here, man, you have training to be busy with, and Jack Crane won't thank me if you're late." Bodie went to the testing-grounds and Cowley sat, thinking about him. It was said..., before he went mad with greed, and with experts like Harriet Sinclair (now retired), Kate Ross, and the military specialist Jack Crane. He had another talk with Bodie, as fruitless as the first. "You're not coming up to scratch," he shouted...

Holden, E.

1997-01-01T23:59:59.000Z

425

Shapes and surface textures of quartz sand grains from glacial deposits: effects of source and transport  

E-Print Network [OSTI]

and to define the shapes and surface texture characteristics which distinguish them from quartz grains of non-glacial origin, 2) to determine the effects of source rock upon the shapes and surface textures of glacial quartz grains, 3) to determine..., and there are no differences in shapes and surface textures of glacial and proglacial quartz grains. The results show that the shapes and surface textures of glacial quartz sand grains largely reflect, and thus are controlled by, the lithology of the source rock from which...

Ritter, Christine

1987-01-01T23:59:59.000Z

426

In situ heat treatment from multiple layers of a tar sands formation  

DOE Patents [OSTI]

A method for treating a tar sands formation is disclosed. The method includes providing a drive fluid to a first hydrocarbon containing layer of the formation to mobilize at least some hydrocarbons in the first layer. At least some of the mobilized hydrocarbons are allowed to flow into a second hydrocarbon containing layer of the formation. Heat is provided to the second layer from one or more heaters located in the second layer. At least some hydrocarbons are produced from the second layer of the formation.

Vinegar, Harold J. (Bellaire, TX)

2010-11-30T23:59:59.000Z

427

Effects of repetitive stressing on the strength and deformation of an angular, coarse sand  

E-Print Network [OSTI]

for the degree of MASTER OF SCIENCE January 1962 Major Subject: Civil Engineering EPPECTS OP REPETITIVE STRESSING ON THE STRENGTH AND DEPORMATION OP AN ANGULAR, COARSE SAND A Thesis LARRY A. DILLON ApProved as to style and content by: M( irman o... with and assistance to others who were utilising and developing the necessa~ research equipment. cd The following calibrations of elements of the re- search equipment were made: (1) Deformation versus load for the Civil Engi- neering Department six-inch triaxial...

Dillon, Larry Albert

1962-01-01T23:59:59.000Z

428

Pile design predictions in sand and gravel using in situ tests  

E-Print Network [OSTI]

1983 Ma]or Sub]ect: Civil Engineering PILE DESIGN PREDICTIONS IN SAND AND GRAVEL USING IN SITU TESTS A Thesis by LINDA GRUBBS HUFF Approved as to style and content by: Harry M. Coyle Chairman of Committee syne A. Du lap Member Chri opher C... Committee: Dr. Harry M. Coyle The pressuremeter, cone penetrometer and standard penetration tests are in situ tests which are being performed more frequently in recent years to obtain soil parameters used in the design of pile foundations. New design...

Huff, Linda Grubbs

1983-01-01T23:59:59.000Z

429

Western Gas Sands Project. Status report, 1 January-31 January 1980  

SciTech Connect (OSTI)

This report summarizes January, 1980, progress of the government-sponsored projects directed toward increasing gas production from the low-permeability gas sands of the western United States. The USGS continued activities in the four primary areas of interest in the WGSP; coring and logging of Rainbow Resources No. 1-3 Federal well, Sweetwater County, Wyoming, was completed during January. The DOE Well Test Facility was moved to Wattenberg field to monitor well tests at the Colorado Interstate Gas Company cyclic injection site. Sixteen minifracs were conducted at the Nevada Test Site in conjunction with Sandia Mineback program.

Not Available

1980-01-01T23:59:59.000Z

430

AVTA Federal Fleet PEV Readiness Data Logging and Characterization Study for NASA White Sands Test Facility  

SciTech Connect (OSTI)

This report focuses on the NASA White Sands Test Facility (WSTF) fleet to identify daily operational characteristics of select vehicles and report findings on vehicle and mission characterizations to support the successful introduction of plug-in electric vehicles (PEVs) into the agencies fleets. Individual observations of these selected vehicles provide the basis for recommendations related to electric vehicle adoption and whether a battery electric vehicle (BEV) or plug-in hybrid electric vehicle (PHEV) (collectively plug-in electric vehicles, or PEVs) can fulfill the mission requirements.

Stephen Schey; Jim Francfort

2014-10-01T23:59:59.000Z

431

EA-1978: Sand Creek Winds, McCone County, Montana | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector General Office of Audit ServicesMirant PotomacFinal1935:Department of Energy Notice8: Sand

432

NUREG/CR-6547 SAND97-2776 DOSFAC2 User's Guide  

Office of Scientific and Technical Information (OSTI)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinan antagonist Journal Article: CrystalFG36-08GO18149 Revision: - Date: 06/15/10 ABENGOANRELu547 SAND97-2776

433

Method of condensing vaporized water in situ to treat tar sands formations  

DOE Patents [OSTI]

Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. Heat may be allowed to transfer from the heaters to at least a first portion of the formation. Conditions may be controlled in the formation so that water vaporized by the heaters in the first portion is selectively condensed in a second portion of the formation. At least some of the fluids may be produced from the formation.

Hsu, Chia-Fu (Rijswijk, NL)

2010-03-16T23:59:59.000Z

434

Environmental, health, safety, and socioeconomic concerns associated with oil recovery from US tar-sand deposits: state-of-knowledge  

SciTech Connect (OSTI)

Tar-sand petroleum-extraction procedures undergoing field testing for possible commercial application in the US include both surface (above-ground) and in situ (underground) procedures. The surface tar-sand systems currently being field tested in the US are thermal decomposition processes (retorting), and suspension methods (solvent extraction). Underground bitumen extraction procedures that are also being field tested domestically are in situ combustion and steam-injection. Environmental, health, safety, and socioeconomic concerns associated with construction and operation of 20,000-bbl/d commercial tar-sand surface and in situ facilities have been estimated and are summarized in this report. The principal regulations that commercial tar-sand facilities will need to address are also discussed, and environmental control technologies are summarized and wherever possible, projected costs of emission controls are stated. Finally, the likelihood-of-occurrence of potential environmental, health, and safety problems that have been determined are reviewed, and from this information inference is made as to the environmental acceptability of technologically feasible 20,000-bbl/d commercial tar-sand oil-extraction procedures.

Daniels, J.I.; Anspaugh, L.R.; Ricker, Y.E.

1982-01-08T23:59:59.000Z

435

Methane Combustion over Pd/ZrO2/SiC, Pd/CeO2/SiC, Pd/Zr0.5Ce0.5O2/SiC Catalysts  

E-Print Network [OSTI]

1 Methane Combustion over Pd/ZrO2/SiC, Pd/CeO2/SiC, Pd/Zr0.5Ce0.5O2/SiC Catalysts Xiaoning Guo a Laboratory of Coal Conversion, Institute of Coal Chemistry, Taiyuan 030001, PR China b GREMI UMR6606 CNRS0.5O2 solid solution) modified Pd/SiC catalysts for methane combustion are studied. XRD and XPS

Paris-Sud XI, Université de

436

SAND REPORT SAND2002xxxx  

E-Print Network [OSTI]

Distribution Category UC-999 Discrete Optimization Models for Protein Folding Bob Carr and Bill Hart Cambridge, MA alantha@theory.lcs.mit.edu Abstract Protein folding is an important problem in Computational is a widely studied model of protein folding that abstracts the dominant force in protein folding

Newman, Alantha

437

Scintillation properties of some Ce[sup 3+] and Pr[sup 3+] doped inorganic crystals  

SciTech Connect (OSTI)

The scintillations properties of Ce[sup 3+] and Pr[sup 3+] doped complex fluoride crystals of composition CsGd[sub 2]F[sub 7] and K[sub 2]YF[sub 5] and of Pr[sup 3+] doped Y[sub 3]Al[sub 5]O[sub 12] single crystals were studied by means of x-ray and gamma ray excitation. The Ce[sub 3+] and Pr[sub 3+] doped fluoride crystals show 5d-4f luminescences at wavelengths near 340 nm and 240 nm, respectively. 5d-4f luminescence of Pr[sup 3+] doped Y[sub 3]Al[sub 5]O[sub 12] is observed between 300 and 400 nm. The authors present the absolute light yield in photons/MeV together with results from scintillation decay time experiments.

Dorenbos, P.; Visser, R.; Eijk, C.W.E. van (Delft Univ. of Technology (Netherlands). Dept. of Applied Physics); Khaidukov, N.M. (N.S. Kurnakov Inst. of General and Inorganic Chemistry, Moscow (Russian Federation)); Korzhik, M.V. (Inst. of Nuclear Problems, Minsk (Russian Federation))

1993-08-01T23:59:59.000Z

438

Magnetization switching of rare earth orthochromite CeCrO{sub 3}  

SciTech Connect (OSTI)

We report the synthesis of single phase rare earth orthochromite CeCrO{sub 3} and its magnetic properties. A canted antiferromagnetic transition with thermal hysteresis at T?=?260?K is observed, and a magnetic compensation (zero magnetization) near 133?K is attributed to the antiparallel coupling between Ce{sup 3+} and Cr{sup 3+} moments. At low temperature, field induced magnetization reversal starting from 43?K for H?=?1.2 kOe reveals the spin flip driven by Zeeman energy between the net moments and the applied field. These findings may find potential uses in magnetic switching devices such as nonvolatile magnetic memory which facilitates two distinct states of magnetization.

Cao, Yiming; Cao, Shixun, E-mail: sxcao@shu.edu.cn; Ren, Wei; Feng, Zhenjie; Yuan, Shujuan; Kang, Baojuan; Zhang, Jincang [Department of Physics, Shanghai University, Shanghai 200444 (China); Lu, Bo [Laboratory for Microstructures, Shanghai University, Shanghai 200444 (China)

2014-06-09T23:59:59.000Z

439

Josephson effect in CeCoIn{sub 5} microbridges as seen via quantum interferometry  

SciTech Connect (OSTI)

A superconducting quantum interference device (SQUID) was prepared on a micron-sized single crystal using a selected growth domain of a thin film of CeCoIn{sub 5} grown by molecular beam epitaxy. SQUID voltage oscillations of good quality were obtained as well as interference effects stemming from the individual Josephson microbridges. The transport characteristics in the superconducting state exhibited several peculiarities which we ascribe to the periodic motion of vortices in the microbridges. The temperature dependence of the Josephson critical current shows good correspondence to the Ambegaokar-Baratoff relation, expected for the ideal Josephson junction. The results indicate a promising pathway to identify the type of order parameter in CeCoIn{sub 5} by means of phase-sensitive measurements on microbridges.

Foyevtsov, Oleksandr; Porrati, Fabrizio; Huth, Michael [Physikalisches Institut, Goethe University, Frankfurt am Main, 60438 (Germany)

2011-07-15T23:59:59.000Z

440

Investigation into Nanostructured Lanthanum Halides and CeBr{sub 3} for Nuclear Radiation Detection  

SciTech Connect (OSTI)

This slide-show presents work on radiation detection with nanostructured lanthanum halides and CeBr{sub 3}. The goal is to extend the gamma energy response on both low and high-energy regimes by demonstrating the ability to detect low-energy x-rays and relatively high-energy activation prompt gamma rays simultaneously using the nano-structured lanthanum bromide, lanthanum fluoride, cerium bromide, or other nanocrystal material. Homogeneous and nano structure cases are compared.

Guss, P., Guise, R., Mukhopadhyay, S., Yuan, D.

2011-06-22T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

Synthesis of Transient Climate Evolution of the last 21-kyr (SynTraCE-21)  

SciTech Connect (OSTI)

Climate evolution in the last 21,000 years provides critical observations for testing state-of-the-art climate models on the simulation of climate evolution and abrupt climate changes. Proxy evidences and new modeling activities have led to rapid advances in our understanding of climate change for this past time period. This funding helps to support the first international SynTraCE-21k workshop at Mount Hood, Oregon from 10-13 October, 2010.

Zhengyu Liu

2011-05-06T23:59:59.000Z

442

Luminescence Enhancement of CdTe Nanostructures in LaF3:Ce/CdTe Nanocomposites  

SciTech Connect (OSTI)

Radiation detection demands new scintillators with high quantum efficiency, high energy resolution and short luminescence lifetimes. Nanocomposites consisting of quantum dots and Ce3+ doped nanophosphors may be able to meet these requirements. Here we report the luminescence of LaF3:Ce/CdTe nanocomposites which were synthesized by a wet chemistry method. In LaF3:Ce/CdTe nanocomposites the CdTe quantum dots are converted into nanowires, while in LaF3/CdTe nanocomposites no such conversion is observed. The CdTe luminescence in LaF3:Ce/CdTe nanocomposites is enhanced about 5 times, while in LaF3/CdTe nanocomposites no enhancement was observed. Energy transfer, light-re-absorption and surface passivation are likely the reasons for the luminescence enhancement.

Yao, Mingzhen; Zhang, Xing; Ma, Lun; Chen, Wei; Joly, Alan G.; Huang, Jinsong; Wang, Qingwu

2010-11-15T23:59:59.000Z

443

A dipole polarizable potential for reduced and doped CeO[subscript 2] obtained from first principles  

E-Print Network [OSTI]

In this paper we present the parameterization of a new interionic potential for stoichiometric, reduced and doped CeO[subscript 2]. We use a dipole polarizable potential (DIPPIM: the dipole polarizable ion model) and ...

Burbano, Mario

444

Impact of the CE mark approval on exit opportunities and validation for early stage medical device companies  

E-Print Network [OSTI]

The aim of this thesis was to look at the impact of acquiring the CE marking approval on the outcome of early stage medical device companies, specifically its impact on strategic acquisition opportunities and on valuation. ...

Kothari, Ashish (Ashish Shrikant)

2011-01-01T23:59:59.000Z

445

Adsorption and Reaction of C1-C3 Alcohols over CeOx(111) Thin Films  

SciTech Connect (OSTI)

This study reports the interaction of methanol, ethanol, 1-propanol, and 2-propanol with well-ordered CeO{sub 2}(111) thin film surfaces. All of the alcohols adsorb at low temperature by forming alkoxy and hydroxyl species on the surface. On fully oxidized CeO{sub 2}(111), recombination occurs between some of the alkoxys and hydroxyls, resulting in alcohol desorption near 220 K. At the same temperature, some of the surface hydroxyls disproportionate to produce water and the loss of lattice O. The remaining alkoxys react above 550 K. The primary alcohols favor dehydrogenation products (aldehydes). There is a net loss of O from the system, resulting in a reduction of the ceria. The secondary alcohol, 2-propanol, undergoes primarily dehydration, producing propene with no net change in the cerium oxidation state. Reduced CeO{sub x}(111) competes with the gaseous products for available O. Little or no water is produced. The reaction selectivity for the C{sub 2} and C{sub 3} alcohols shifts toward favoring dehydration products. The loss of O from the alcohols leads to oxidation of the reduced ceria. Compared with the oxidized surface, the alkene desorption shifts to lower temperature, whereas the aldehyde desorption shifts to higher temperature. This indicates that, on the reduced surface, it is easier to break the C-O bond but more difficult to break the O-substrate bond.

D Mullins; S Senanayake; T Chen

2011-12-31T23:59:59.000Z

446

Mineral Dissolution and Secondary Precipitation on Quartz Sand in Simulated Hanford Tank Solutions Affecting Subsurface Porosity  

SciTech Connect (OSTI)

Highly alkaline nuclear waste solutions have been released from underground nuclear waste storage tanks and pipelines into the vadose zone at the U.S. Department of Energys Hanford Site in Washington, causing mineral dissolution and re-precipitation upon contact with subsurface sediments. High pH caustic NaNO3 solutions with and without dissolved Al were reacted with quartz sand through flow-through columns stepwise at 45, 51, and 89C to simulate possible reactions between leaked nuclear waste solution and primary subsurface mineral. Upon reaction, Si was released from the dissolution of quartz sand, and nitrate-cancrinite [Na8Si6Al6O24(NO3)2] precipitated on the quartz surface as a secondary mineral phase. Both steady-state dissolution and precipitation kinetics were quantified, and quartz dissolution apparent activation energy was determined. Mineral alteration through dissolution and precipitation processes results in pore volume and structure changes in the subsurface porous media. In this study, the column porosity increased up to 40.3% in the pure dissolution column when no dissolved Al was present in the leachate, whereas up to a 26.5% porosity decrease was found in columns where both dissolution and precipitation were observed because of the presence of Al in the input solution. The porosity change was also confirmed by calculation using the dissolution and precipitation rates and mineral volume changes.

Wang, Guohui; Um, Wooyong

2012-11-23T23:59:59.000Z

447

Comparisons of hydrocarbon and nitrogen distributions in geologically diverse tar sand bitumen  

SciTech Connect (OSTI)

The characteristics of bitumens from different tar sand deposits are generally significantly different and affect the utilization of the resource. The chemical and physical properties of bitumen are a result of maturation reactions on the varied organic sediments. For example, saturated hydrocarbon distributions have been related to the geochemical history of organic matter. Very paraffinic or sometimes paraffinic-naphthenic distributions in organic matter are derived from a nonmarine depositional environment. More aromatic and paraffinic-naphthenic hydrocarbon distributions are derived from organic matter deposited in a marine environment. The characteristics of the bitumen also influence the potential for recovery and subsequent processing of the material. For example, saturated hydrocarbons contribute to the high pour points of recovered oils. The origin and composition of an oil influence its viscosity, API gravity, and coke formation during processing, particularly under low-temperature oxidation conditions. The objective of this work is to determine the chemical and physical properties of several samples of bitumen from geologically diverse tar sand deposits. The compound-type distributions and LTD properties of these bitumens are discussed relative to the depositional environment and processing potential of the organic matter.

Holmes, S.A.

1988-06-01T23:59:59.000Z

448

Factors that affect the degradation of naphthenic acids in oil sands wastewater by indigenous microbial communities  

SciTech Connect (OSTI)

The acute toxicity of wastewater generated during the extraction of bitumen from oil sands is believed to be due to naphthenic acids (NAs). To determine the factors that affect the rate of degradation of representative NAs in microcosms containing wastewater and the acute toxicity of treated and untreated wastewater, the effects of temperature, dissolved oxygen concentration, and phosphate addition on the rate of {sup 14}CO{sub 2} release form two representative naphthenic acid substrates, (linear) U-{sup 14}C-palmitic acid (PA) and (bicyclic) decahydro-2-naphthoic acid-8-{sup 14}C (DHNA), were monitored. Tailings pond water (TPW) contained microorganisms well adapted to mineralizing both PA and DHNA:PA was degraded more quickly (10--15% in 4 weeks) compared to DHNA (2--4% in 8 weeks). On addition of phosphate, the rate of NA degradation increased up to twofold in the first 4 weeks, with a concurrent increase in the rate of oxygen consumption by oil sands TPW. The degradation rate then declined to levels equivalent to those measured in flasks without phosphate. The observed plateau was not due to phosphate limitation. Decreases in either the dissolved oxygen concentration or the temperature reduced the rate. Phosphate addition also significantly decreased the acute toxicity of TPW to fathead minnows. In contrast, Microtox{reg_sign} analyses showed no reduction in the toxicity of treated or untreated TPW after incubation for up to 8 weeks at 15 C.

Lai, J.W.S.; Pinto, L.J.; Kiehlmann, E.; Bendell-Young, L.I.; Moore, M.M. [Simon Fraser Univ., Burnaby, British Columbia (Canada)

1996-09-01T23:59:59.000Z

449

Perch population assessment in lakes reclaimed using oil-sands derived material  

SciTech Connect (OSTI)

The mining and extraction of petroleum products from oil-sands involves large areas of land and produces enormous volumes of tailings. One possible land reclamation option is to incorporate fine-tailings material into the bottoms of constructed lakes capped with natural surface water. The wet landscape method represents potential risk to aquatic biota-naphthenic acids and PAHs elute from pore water contained in the fine-tailings substrate. In spring 1995 yellow perch were stocked into a large-scale (5ha) experimental pond that consisted of fine-tailings capped with natural water as well as into two other reclaimed ponds that were constructed with oil-sands overburden material. Prior to stocking of perch, ponds had colonized with cyprinids, macrophytes and benthic invertebrates over a two year period. Perch were sampled in fall 1995 for age, condition factor, liver size, gonad size, fecundity, stomach contents, liver mixed-function oxygenase activity (MFO), bile PAH metabolites and plasma steroid hormones. When compared to the source lake, perch in the DP did not show reduced reproductive potential. Perch in all of the reclaimed ponds demonstrated exposure to organic compounds as indicated by marginally induced MFO activity and increased liver size. Exposure to naphthenates and PAHs in water as well as ecological environmental factors will be discussed.

Heuvel, M.R. van den; Dixon, D.G. [Univ. of Waterloo, Ontario (Canada); Power, M. [Univ. of Manitoba, Winnipeg, Manitoba (Canada); Boerger, H.; MacKinnon, M.D.; Meer, T. van [Syncrude Canada, Fort McMurray, Alberta (Canada)

1995-12-31T23:59:59.000Z

450

Flowsheet modifications for dissolution of sand, slag, and crucible residues in the F-canyon dissolvers  

SciTech Connect (OSTI)

An initial flowsheet for the dissolution of sand, slag, and crucible (SS{ampersand}C) was developed for the F- Canyon dissolvers as an alternative to dissolution in FB-Line. In that flowsheet, the sand fines were separated from the slag chunks and crucible fragments. Those two SS{ampersand}C streams were packaged separately in mild-steel cans for dissolution in the 6.4D dissolver. Nuclear safety constraints limited the dissolver charge to approximately 350 grams of plutonium in two of the three wells of the dissolver insert and required 0.23M (molar) boron as a soluble neutron poison in the 9.3M nitric acid/0.013M fluoride dissolver solution. During the first dissolution of SS{ampersand}C fines, it became apparent that a significant amount of the plutonium charged to the 6.4D dissolver did not dissolve in the time predicted by previous laboratory experiments. The extended dissolution time was attributed to fluoride complexation by boron. An extensive research and development (R{ampersand}D) program was initiated to investigate the dissolution chemistry and the physical configuration of the dissolver insert to understand what flowsheet modifications were needed to achieve a viable dissolution process.

Rudisill, T.S.; Karraker, D.G.; Graham, F.R.

1997-12-01T23:59:59.000Z

451

Assessment of the application of acoustic emission technology for monitoring the presence of sand under multiphase flow condition  

SciTech Connect (OSTI)

The monitoring of multiphase flow is an established process that has spanned several decades. This paper demonstrates the use of acoustic emission (AE) technology to investigate sand transport characteristic in three-phase (air-water-sand) flow in a horizontal pipe where the superficial gas velocity (VSG) had a range of between 0.2 ms{sup ?1} to 2.0 ms{sup ?1} and superficial liquid velocity (VSL) had a range of between 0.2 ms{sup ?1} to 1.0 ms{sup ?1}. The experimental findings clearly show a correlation exists between AE energy levels, sand concentration, superficial gas velocity (VSG) and superficial liquid velocity (VSL)

El-Alej, M., E-mail: m.elalej@cranfield.ac.uk; Mba, D., E-mail: m.elalej@cranfield.ac.uk; Yeung, H., E-mail: m.elalej@cranfield.ac.uk [School of Engineering, Cranfield University, Cranfield, Bedfordshire, MK43 OAL (United Kingdom)

2014-04-11T23:59:59.000Z

452

Supercritical fluid extraction of bitumen free solids separated from Athabasca oil sand feed and hot water process tailings pond sludge  

SciTech Connect (OSTI)

The presence of strongly bound organic matter (SOM), in association with certain solids fractions, causes serious problems in the processability of Athabasca oil sands as well as in the settling and compaction of hot water process tailing pond sludge. It has been demonstrated that a substantial amount of this SOM can be separated from oil sands feed and sludge solids, after removal of bitumen by toluene, using a supercritical fluid extraction (SFE) method. The extracted material is soluble in common organic solvents which allows a direct comparison, between the SOM separated from oil sands and sludges, from the point of view of both gross analysis of the major compound types and detailed analysis of chemical structures.

Kotlyar, L.S.; Sparks, B.D.; Woods, J.R.; Ripmeester, J.A. (National Research Council of Canada, Ottawa, ON (Canada). Div. of Chemistry)

1990-01-01T23:59:59.000Z

453

Morphological and Structural Changes During the Reduction and Reoxidation of CuO/CeO(2) and Ce(1-x)Cu(x)O(2) Nanocatalysts: In-situ Studies with Environmental TEM, XRD and XAS  

SciTech Connect (OSTI)

We have studied the structural, morphological, and electronic properties of CuO/CeO{sub 2} and Ce{sub 1-x}Cu{sub x}O{sub 2} nanocatalysts during reduction/oxidation cycles using H{sub 2} and O{sub 2} as chemical probes. Time-resolved in situ characterization was performed by X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS) as well as aberration-corrected environmental transmission electron microscopy (ETEM). We have found that both types of nanocatalysts reduce to a Cu/CeO{sub 2} biphase system with significant oxygen vacancies in CeO{sub 2}. Important variations are seen in the Cu particle size and metal dispersion depending on the initial state of the copper oxide-ceria systems. During subsequent in situ oxygen annealing, the Cu precipitated from the CuO/CeO{sub 2} system reoxidized to form CuO through a Cu{sub 2}O intermediate phase as expected. However, the Cu precipitated from the Ce{sub 0.8}Cu{sub 0.2}O{sub 2} solid solution behaved rather differently under oxidizing conditions, and neither oxidized to form CuO nor fully returned to a bulk Ce{sub 0.8}Cu{sub 0.2}O{sub 2} phase in solid solution. We found that {approx} 50% of the Cu returned to a Ce{sub 1-x}Cu{sub x}O{sub 2} solid solution, while the remainder was observed by in situ ETEM to form an amorphous copper oxide phase with a Cu oxidation state similar to Ce{sub 1-x}Cu{sub x}O{sub 2}, but with a local bonding environment similar to CuO. The behavior of the reduced Ce{sub 0.8}Cu{sub 0.2}O{sub 2} reflects strong interactions between Cu and the ceria matrix and illustrates the advantages of working with solid solutions of mixed oxides.

Rodriguez, J.A.; Ciston, J.; Si, R.; Hanson, J.C.; Martnez-Arias, A.; Fernandez-Garca, M.; Zhu, Y.

2011-07-21T23:59:59.000Z

454

Morphological and Structural Changes during the Reduction and Reoxidation of CuO/CeO2 and Ce1-xCuxO2 Nanocatalysts: In Situ Studies with Environmental TEM XRD and XAS  

SciTech Connect (OSTI)

We have studied the structural, morphological, and electronic properties of CuO/CeO{sub 2} and Ce{sub 1-x}Cu{sub x}O{sub 2} nanocatalysts during reduction/oxidation cycles using H2 and O2 as chemical probes. Time-resolved in situ characterization was performed by X-ray diffraction (XRD) and X-ray absorption spectroscopy (XAS) as well as aberration-corrected environmental transmission electron microscopy (ETEM). We have found that both types of nanocatalysts reduce to a Cu/CeO{sub 2} biphase system with significant oxygen vacancies in CeO{sub 2}. Important variations are seen in the Cu particle size and metal dispersion depending on the initial state of the copper oxide-ceria systems. During subsequent in situ oxygen annealing, the Cu precipitated from the CuO/CeO{sub 2} system reoxidized to form CuO through a Cu2O intermediate phase as expected. However, the Cu precipitated from the Ce{sub 0.8}Cu{sub 0.2}O{sub 2} solid solution behaved rather differently under oxidizing conditions, and neither oxidized to form CuO nor fully returned to a bulk Ce{sub 0.8}Cu{sub 0.2}O{sub 2} phase in solid solution. We found that 50% of the Cu returned to a Ce{sub 1-x}Cu{sub x}O{sub 2} solid solution, while the remainder was observed by in situ ETEM to form an amorphous copper oxide phase with a Cu oxidation state similar to Ce{sub 1-x}Cu{sub x}O{sub 2}, but with a local bonding environment similar to CuO. The behavior of the reduced Ce{sub 0.8}Cu{sub 0.2}O{sub 2} reflects strong interactions between Cu and the ceria matrix and illustrates the advantages of working with solid solutions of mixed oxides.

J Ciston; R Si; J Rodriquez; J Hanson; A Martinez-Arias; M Fernandez-Garcia; Y Zhu

2011-12-31T23:59:59.000Z

455

High thermoelectric performance of In, Yb, Ce multiple filled CoSb{sub 3} based skutterudite compounds  

SciTech Connect (OSTI)

Filling voids with rare earth atoms is an effective way to lowering thermal conductivity which necessarily enhances thermoelectric properties of skutterudite compounds. Yb atom is one of the most effective species among the rare earth atoms for filling the voids in the skutterudite structure due to a large atomic mass, radius and it is intermediate valence state. In this work, we aim to find the best filling partners for Yb using different combinations of Ce and In as well as to optimize actual filling fraction in order to achieve high values of ZT. The traditional method of synthesis relying on melting-annealing and followed by spark plasma sintering was used to prepare all samples. The thermoelectric properties of four samples of Yb{sub 0.2}In{sub 0.2}Co{sub 4}Sb{sub 12}, Yb{sub 0.2}Ce{sub 0.15}Co{sub 4}Sb{sub 12}, Yb{sub 0.2}Ce{sub 0.15}In{sub 0.2}Co{sub 4}Sb{sub 12}, and Yb{sub 0.3}Ce{sub 0.15}In{sub 0.2}Co{sub 4}Sb{sub 12} (nominal) were examined based on the Seebeck coefficient, electrical conductivity, thermal conductivity, and Hall coefficient. Hall coefficient and Seebeck coefficient signs confirm that all samples are n-type skutterudite compounds. Carrier density increases with the increasing Yb+Ce content. A high power factor value of 57.7 {mu}W/K{sup 2}/cm for Yb{sub 0.2}Ce{sub 0.15}Co{sub 4}Sb{sub 12} and a lower thermal conductivity value of 2.82 W/m/K for Yb{sub 0.2}Ce{sub 0.15}In{sub 0.2}Co{sub 4}Sb{sub 12} indicate that small quantities of Ce with In may be a good partner to Yb to reduce the thermal conductivity further and thus enhance the thermoelectric performance of skutterudites. The highest ZT value of 1.43 was achieved for Yb{sub 0.2}Ce{sub 0.15}In{sub 0.2}Co{sub 4}Sb{sub 12} triple-filled skutterudite at 800 K. - Graphical abstract: Thermoelectric figure of merit of Yb{sub x}In{sub y}Ce{sub z}Co{sub 4}Sb{sub 12} (0{<=}x,y,z{<=}0.18 actual) compounds versus temperature. Highlights: Black-Right-Pointing-Pointer TE properties of Yb,In,Ce multiple-filled Yb{sub x}In{sub y}Ce{sub z}Co{sub 4}Sb{sub 12} skutterudites were investigated. Black-Right-Pointing-Pointer Thermal conductivity is strongly suppressed by multiple filling of Yb, Ce and In. Black-Right-Pointing-Pointer Small amounts of Ce and In with Yb are beneficial for the enhancement of TE performance. Black-Right-Pointing-Pointer The highest ZT=1.43 was achieved with Yb{sub 0.07}In{sub 0.094}Ce{sub 0.065}Co{sub 4}Sb{sub 11.92} at 800 K.

Ballikaya, Sedat [Department of Physics, University of Istanbul, 34134 Vezneciler, Istanbul (Turkey) [Department of Physics, University of Istanbul, 34134 Vezneciler, Istanbul (Turkey); Department of Physics, University of Michigan, Ann Arbor, MI, 48109 (United States); Uzar, Neslihan; Yildirim, Saffettin [Department of Physics, University of Istanbul, 34134 Vezneciler, Istanbul (Turkey)] [Department of Physics, University of Istanbul, 34134 Vezneciler, Istanbul (Turkey); Salvador, James R. [Chemical Sci. and Mater. Systems Laboratory, General Motors Global R and D Center, Warren, MI 48090 (United States)] [Chemical Sci. and Mater. Systems Laboratory, General Motors Global R and D Center, Warren, MI 48090 (United States); Uher, Ctirad, E-mail: cuher@umich.edu [Department of Physics, University of Michigan, Ann Arbor, MI, 48109 (United States)] [Department of Physics, University of Michigan, Ann Arbor, MI, 48109 (United States)

2012-09-15T23:59:59.000Z

456

Pore-scale mechanisms of gas flow in tight sand reservoirs  

SciTech Connect (OSTI)

Tight gas sands are unconventional hydrocarbon energy resource storing large volume of natural gas. Microscopy and 3D imaging of reservoir samples at different scales and resolutions provide insights into the coaredo not significantly smaller in size than conventional sandstones, the extremely dense grain packing makes the pore space tortuous, and the porosity is small. In some cases the inter-granular void space is presented by micron-scale slits, whose geometry requires imaging at submicron resolutions. Maximal Inscribed Spheres computations simulate different scenarios of capillary-equilibrium two-phase fluid displacement. For tight sands, the simulations predict an unusually low wetting fluid saturation threshold, at which the non-wetting phase becomes disconnected. Flow simulations in combination with Maximal Inscribed Spheres computations evaluate relative permeability curves. The computations show that at the threshold saturation, when the nonwetting fluid becomes disconnected, the flow of both fluids is practically blocked. The nonwetting phase is immobile due to the disconnectedness, while the permeability to the wetting phase remains essentially equal to zero due to the pore space geometry. This observation explains the Permeability Jail, which was defined earlier by others. The gas is trapped by capillarity, and the brine is immobile due to the dynamic effects. At the same time, in drainage, simulations predict that the mobility of at least one of the fluids is greater than zero at all saturations. A pore-scale model of gas condensate dropout predicts the rate to be proportional to the scalar product of the fluid velocity and pressure gradient. The narrowest constriction in the flow path is subject to the highest rate of condensation. The pore-scale model naturally upscales to the Panfilov's Darcy-scale model, which implies that the condensate dropout rate is proportional to the pressure gradient squared. Pressure gradient is the greatest near the matrix-fracture interface. The distinctive two-phase flow properties of tight sand imply that a small amount of gas condensate can seriously affect the recovery rate by blocking gas flow. Dry gas injection, pressure maintenance, or heating can help to preserve the mobility of gas phase. A small amount of water can increase the mobility of gas condensate.

Silin, D.; Kneafsey, T.J.; Ajo-Franklin, J.B.; Nico, P.

2010-11-30T23:59:59.000Z

457

Seasonal patterns of coarse sediment transport on a mixed sand and gravel beach due to vessel wakes, wind waves, and tidal currents  

E-Print Network [OSTI]

Seasonal patterns of coarse sediment transport on a mixed sand and gravel beach due to vessel wakes, wind waves, and tidal currents Gregory M. Curtiss a, , Philip D. Osborne b,1 , Alexander R. Horner December 2008 Accepted 29 December 2008 Keywords: mixed sand and gravel beach ferry wake wash beach

Talke, Stefan

458

Upgrading of middle distillate fractions of syncrudes from athabasca oil sands  

SciTech Connect (OSTI)

Middle distillate fractions of syncrudes from Athabasca Oil Sands were evaluated for suitability as feedstocks in the catalytic conversion to diesel fuel meeting cetane number specifications. Hydrogenation of aromatic components to napthenes under severe conditions (380 to 400/sup 0/C, 2500 psig) using sulfided CoO/MoO/sub 3/ and NiO/WO/sub 3/ over ..cap alpha.. . Al/sub 2/O/sub 3/ in a previously described catalyst testing system. Reaction products were analyzed for aromatic carbon content using C/sup 13/ NMR spectroscopy and pseudo first order rate constants and activation energies (15.0 and 14.2 kcal 1 g-mole, respectively) were determined by regression analysis. At optimum conditions 97% aromatic conversion was obtained with the Ni-W catalyst. Product diesel fuel cetane number (42) was within specifications. Co-Mo catalyst was significantly less active.

Wilson, M.F.; Kriz, J.F.

1983-03-01T23:59:59.000Z

459

Moving hydrocarbons through portions of tar sands formations with a fluid  

DOE Patents [OSTI]

A method for treating a tar sands formation is disclosed. The method includes heating a first portion of a hydrocarbon layer in the formation from one or more heaters located in the first portion. The heat is controlled to increase a fluid injectivity of the first portion. A drive fluid and/or an oxidizing fluid is injected and/or created in the first portion to cause at least some hydrocarbons to move from a second portion of the hydrocarbon layer to a third portion of the hydrocarbon layer. The second portion is between the first portion and the third portion. The first, second, and third portions are horizontally displaced from each other. The third portion is heated from one or more heaters located in the third portion. Hydrocarbons are produced from the third portion of the formation. The hydrocarbons include at least some hydrocarbons from the second portion of the formation.

Stegemeier, George Leo; Mudunuri, Ramesh Raju; Vinegar, Harold J.; Karanikas, John Michael; Jaiswal, Namit; Mo, Weijian

2010-05-18T23:59:59.000Z

460

Varying properties of in situ heat treatment of a tar sands formation based on assessed viscosities  

DOE Patents [OSTI]

A method for treating a tar sands formation includes providing heat to at least part of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. The heat is allowed to transfer from the heaters to at least a portion of the formation. A viscosity of one or more zones of the hydrocarbon layer is assessed. The heating rates in the zones are varied based on the assessed viscosities. The heating rate in a first zone of the formation is greater than the heating rate in a second zone of the formation if the viscosity in the first zone is greater than the viscosity in the second zone. Fluids are produced from the formation through the production wells.

Karanikas, John Michael; Vinegar, Harold J

2014-03-04T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

Analysis of techniques for predicting viscosity of heavy oil and tar sand bitumen  

SciTech Connect (OSTI)

Thermal recovery methods are generally employed for recovering heavy oil and tar sand bitumen. These methods rely on reduction of oil viscosity by application of heat as one of the primary mechanisms of oil recovery. Therefore, design and performance prediction of the thermal recovery methods require adequate prediction of oil viscosity as a function of temperature. In this paper, several commonly used temperature-viscosity correlations are analyzed to evaluate their ability to correctly predict heavy oil and bitumen viscosity as a function of temperature. The analysis showed that Ali and Standing`s correlations gave satisfactory results in most cases when properly applied. Guidelines are provided for their application. None of the correlations, however, performed satisfactorily with very heavy oils at low temperatures.

Khataniar, S.; Patil, S.L.; Kamath, V.A. [Univ. of Alaska, Fairbanks, AK (United States)

1995-12-31T23:59:59.000Z

462

Western gas sands project. Status report, 1 April-30 April, 1980  

SciTech Connect (OSTI)

The progress of the government-sponsored projects directed towards increasing gas production from the low permeability gas sands of the western United States is summarized. Planning activities continued for the multi-well experiment. Bartlesville Energy Technology Center continued formation evaluation studies for the WGSP. Theoretical analyses continued at Lawrence Livermore Laboratory for fracture growth across frictional interfaces and fluid flow in a fracture. Studies have begun at Los Alamos Scientific Laboratory on NMR signals coming from fluids in porous media. Analyses continued of information gathered from Sandia's fracture experiment in Grayson County, Texas. Tests using the DOE Well Test Facility were completed for the Colorado Interstate Gas Company cyclic dry gas injection experiment. At the NTS, Sandia is conducting minifractures.

Not Available

1980-01-01T23:59:59.000Z

463

A full field model study of the East Velma West Block Sims Sand Unit reservoir  

SciTech Connect (OSTI)

A full-field numerical model of the East Velma West Block Sims Sand Unit (EVWBSSU) reservoir was developed. From the history-matched model, field performance predictions were made for continued waterflood and various operating scenarios under the present CO/sub 2/ injection scheme. Results include the effect of CO/sub 2/ pipeline supply rate, allocation of CO/sub 2/ and water to injection wells, and uncertain parameters on reservoir performance. From these projections it was concluded that the amount of injected CO/sub 2/ required to produce an incremental barrel of oil over waterflood was not strongly dependent on CO/sub 2/ pipeline supply rate or allocation of injected fluids to injection wells. This conclusion seems reasonable mechanistically because the miscible displacement was dominated by gravity, the areal variation in predicted updip oil saturation was not great, and the continuous injection coupled with high permeability updip caused uniform distribution of CO/sub 2/.

Bolling, J.D.

1985-08-01T23:59:59.000Z

464

Temperature effects on oil-water relative permeabilities for unconsolidated sands  

SciTech Connect (OSTI)

This study presents an experimental investigation of temperature effects on relative permeabilities of oil- water systems in unconsolidated sands. The fluids used in this study were refined mineral oil and distilled water. A rate sensitivity study was done on residual oil saturation and oil and water relative permeabilities. The temperature sensitivity study of relative permeabilities was conducted in 2 parts. The first was to investigate changes in residual oil saturation with temperature where the cores were 100% saturated with oil at the start of the waterflood. The second part continued the floods for a longer time until the water-cut was virtually 100%. Under these conditions, little change in residual oil saturation was observed with temperature. A study on viscous instabilities also was performed. This verified the existence of viscous fingers during waterflooding. It also was observed that tubing volume after the core could cause fingering, resulting in lower apparent breakthrough oil recoveries.

Sufi, A.H.

1983-03-01T23:59:59.000Z

465

Western Gas Sands Project. Status report, 1 March-31 March 1980  

SciTech Connect (OSTI)

The March, 1980 progress of the government-sponsored projects directed towards increasing gas production from the low permeability gas sands of the western United States is summarized in this report. A site for the multi-well experiment was approved by the industry review committee; drilling is expected by mid-summer. Bartlesville Energy Technology Center continued work on fracture conductivity, rock/fluid interaction, and log evaluation and interpretation techniques. Lawrence Livermore Laboratory continued experimental and theoretical work on hydraulic fracturing mechanics and analysis of well test data. Analysis of data obtained from a test of the borehole seismic unit by Sandia Laboratories continued. The DOE Well Test Facility continued bottom-hole pressure buildup measurements at the Colorado Interstate Gas Company Miller No. 1 well.

Not Available

1980-01-01T23:59:59.000Z

466

Evolution of seismic velocities in heavy oil sand reservoirs during thermal recovery process  

E-Print Network [OSTI]

In thermally enhanced recovery processes like cyclic steam stimulation (CSS) or steam assisted gravity drainage (SAGD), continuous steam injection entails changes in pore fluid, pore pressure and temperature in the rock reservoir, that are most often unconsolidated or weakly consolidated sandstones. This in turn increases or decreases the effective stresses and changes the elastic properties of the rocks. Thermally enhanced recovery processes give rise to complex couplings. Numerical simulations have been carried out on a case study so as to provide an estimation of the evolution of pressure, temperature, pore fluid saturation, stress and strain in any zone located around the injector and producer wells. The approach of Ciz and Shapiro (2007) - an extension of the poroelastic theory of Biot-Gassmann applied to rock filled elastic material - has been used to model the velocity dispersion in the oil sand mass under different conditions of temperature and stress. A good agreement has been found between these pre...

Nauroy, Jean-Franois; Guy, N; Baroni, Axelle; Delage, Pierre; Mainguy, Marc; 10.2516/ogst/2012027

2013-01-01T23:59:59.000Z

467

Microstructure, microstructural stability and mechanical properties of sand-cast Mg4Al4RE alloy  

SciTech Connect (OSTI)

This paper presents a methodology for assessing the phase composition and the results of structural stability tests of the sand-cast Mg4Al4RE alloy after annealing it at 175 and 250 C for 3000 h. The microstructure was analyzed with optical, scanning electron, and transmission electron microscopy. The phase composition was determined with X-ray diffraction. The structure of the Mg4Al4RE (AE44) alloy is composed of large grains of ?-Mg solid solution, needle-shaped precipitates of the Al{sub 11}RE{sub 3}phase, polyhedral precipitates of the Al{sub 2}RE phase and Al{sub 10}RE{sub 2}Mn{sub 7} phase. After annealing at 175 C for 3000 h, no changes in the alloy structure are observed, whereas after annealing at 250 C the precipitates of the Al{sub 11}RE{sub 3} phase are found to be in the initial stages of spheroidization. The coarse-grained structure and unfavorable morphology of the intermetallic phases in the sand-cast AE44 alloy, which are caused by low solidification rates, result in low creep resistance up to 200 C and low mechanical properties at ambient temperature and at 175 C. - Highlights: Complement the knowledge about the microstructure of Mg-Al-RE alloys. Clarify the mechanism of formation of Mg17Al12 phase above 180 C. Applying a chemical dissolution of the ?-Mg in order to phase identification. Applying a statistical test to assess the spheroidization of precipitates. Quantitative description of microstructure of Mg-Al-RE alloys.

Rzycho?, Tomasz, E-mail: tomasz.rzychon@polsl.pl [Silesian University of Technology, Faculty of Materials Science and Metallurgy, Krasi?skiego 8, 40 019 Katowice (Poland); Kie?bus, Andrzej [Silesian University of Technology, Faculty of Materials Science and Metallurgy, Krasi?skiego 8, 40 019 Katowice (Poland); Lity?ska-Dobrzy?ska, Lidia [Polish Academy of Sciences, Institute of Metallurgy and Materials Science, 25 Reymonta Street, 30-059 Krakw (Poland)

2013-09-15T23:59:59.000Z

468

Determining the ecological viability of constructed wetlands for the treatment of oil sands wastewater  

SciTech Connect (OSTI)

To determine the conditions for optimal degradation of naphthenic acids (C{sub n}H{sub 2n+z}O{sub 2}), the most toxic component of oil sands wastewater, the authors have monitored the mineralization of 2 representative naphthenic acids (NA), U-{sup 14}C-palmitic acid (linear, Z = 0) and 8-{sup 14}C-decahydro-2-naphthoic acid (bicyclic, Z = {minus}4) under varying conditions of temperature, phosphate and oxygen. The radiolabeled NA was added to biometer flasks containing wastewater {+-} amendments and evolved {sup 14}C-CO{sub 2} was trapped in a side arm and counted by LSC. The results indicate that low temperature (5 C) and anaerobiasis greatly inhibited NA degradation over the four week incubation period. Addition of phosphate (as buffered KP{sub i}) significantly increased {sup 14}C-CO{sub 2} production for both Z = 0 and Z = {minus}4 compounds; however, the subsequent high microbial growth rates also decreased PO{sub 2} which limited NA mineralization. Effluent toxicity was monitored at week 0 and week 4 using Microtox and fathead minnow tests. Although there was increased survival of fathead minnows in the phosphate-amended effluent, the IC{sub 20} values of the Microtox assay showed no improvement in either the phosphate-treated or untreated effluents. These results show that naphthenic acid analogues are readily degraded by indigenous microorganisms in oil sands wastewater and that phosphate addition accelerated the mineralization of these compounds if PO{sub 2} remained high.

Lai, J.; Kiehlmann, E.; Pinto, L.; Bendell-Young, L.; Moore, M. [Simon Fraser Univ., Burnaby, British Columbia (Canada); Nix, P. [EVS Environment Consultants, North Vancouver, British Columbia (Canada)

1995-12-31T23:59:59.000Z

469

Policy Analysis of Water Availability and Use Issues for Domestic Oil Shale and Oil Sands Development  

SciTech Connect (OSTI)

Oil shale and oil sands resources located within the intermountain west represent a vast, and as of yet, commercially untapped source of energy. Development will require water, and demand for scarce water resources stands at the front of a long list of barriers to commercialization. Water requirements and the consequences of commercial development will depend on the number, size, and location of facilities, as well as the technologies employed to develop these unconventional fuels. While the details remain unclear, the implication is not unconventional fuel development will increase demand for water in an arid region where demand for water often exceeds supply. Water demands in excess of supplies have long been the norm in the west, and for more than a century water has been apportioned on a first-come, first-served basis. Unconventional fuel developers who have not already secured water rights stand at the back of a long line and will need to obtain water from willing water purveyors. However, uncertainty regarding the nature and extent of some senior water claims combine with indeterminate interstate river management to cast a cloud over water resource allocation and management. Quantitative and qualitative water requirements associated with Endangered Species protection also stand as barriers to significant water development, and complex water quality regulations will apply to unconventional fuel development. Legal and political decisions can give shape to an indeterminate landscape. Settlement of Northern Ute reserved rights claims would help clarify the worth of existing water rights and viability of alternative sources of supply. Interstate apportionment of the White River would go a long way towards resolving water availability in downstream Utah. And energy policy clarification will help determine the role oil shale and oil sands will play in our nations future.

Ruple, John; Keiter, Robert

2010-12-31T23:59:59.000Z

470

Characterization of trace gases measured over Alberta oil sands mining operations: 76 speciated C2-C10volatile organic compounds (VOCs), CO2, CH4, CO, NO, NO2, NOy, O3and SO2  

E-Print Network [OSTI]

Oil sands comprise 30% of the worlds oil reserves andthe crude oil reserves in Canadas oil sands deposits are30% of total world oil reserves (Alboudwarej et al. , 2006)

2010-01-01T23:59:59.000Z

471

Rationalization of the Hubbard U parameter in CeO{sub x} from first principles: Unveiling the role of local structure in screening  

SciTech Connect (OSTI)

The density functional theory (DFT)+U method has been widely employed in theoretical studies on various ceria systems to correct the delocalization bias in local and semi-local DFT functionals with moderate computational cost. We present a systematic and quantitative study, aiming to gain better understanding of the dependence of Hubbard U on the local atomic arrangement. To rationalize the Hubbard U of Ce 4f, we employed the first principles linear response method to compute Hubbard U for Ce in ceria clusters, bulks, and surfaces. We found that the Hubbard U varies in a wide range from 4.3 eV to 6.7 eV, and exhibits a strong correlation with the Ce coordination number and CeO bond lengths, rather than the Ce 4f valence state. The variation of the Hubbard U can be explained by the changes in the strength of local screening due to O ? Ce intersite transitions.

Lu, Deyu, E-mail: dlu@bnl.gov, E-mail: pingliu3@bnl.gov; Liu, Ping, E-mail: dlu@bnl.gov, E-mail: pingliu3@bnl.gov [Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973 (United States)] [Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973 (United States)

2014-02-28T23:59:59.000Z

472

Paper No. 2004-mfb-03 Kelly Page: 1 of 4 Tensile Loading of Model Caisson Foundations for Structures on Sand  

E-Print Network [OSTI]

Paper No. 2004-mfb-03 Kelly Page: 1 of 4 Tensile Loading of Model Caisson Foundations for Structures on Sand R.B. Kelly, B.W. Byrne, G.T. Houlsby and C.M. Martin Department of Engineering) (see Byrne et al, 2002; Byrne et al, 2003; Kelly et al, 2003). This paper concentrates on the tensile

Byrne, Byron

473

Mapping mean annual groundwater recharge in the Nebraska Sand Jozsef Szilagyi & Vitaly A. Zlotnik & John B. Gates &  

E-Print Network [OSTI]

Mapping mean annual groundwater recharge in the Nebraska Sand Hills, USA Jozsef Szilagyi & Vitaly A is available to authorized users. J. Szilagyi :J. Jozsa Department of Hydraulic and Water Resources Engineering, Budapest University of Technology and Economics, Muegyetem Rakpart. 3­9, 1111 Budapest, Hungary J. Szilagyi

Szilagyi, Jozsef

474

UMore Park Sand and Gravel Resources Project Draft Environmental Impact Statement (EIS), June 28, 2010 Errata Sheet  

E-Print Network [OSTI]

onsite receiving water impacts would meet existing MPCA criteria for deep lakes. #12;UMore Park Sand and Gravel Resources Project Draft Environmental Impact Statement (EIS), June 28 causes a reduction in the volume of storm water runoff reaching the Vermillion River. Table 17 summarizes

Netoff, Theoden

475

Electrical Properties of SandClay Mixtures Containing Trichloroethylene and Ethanol Jeffery J. Roberts and Dorthe Wildenschild*  

E-Print Network [OSTI]

Electrical Properties of Sand­Clay Mixtures Containing Trichloroethylene and Ethanol Jeffery J, and as an ethanol­water mixture (80:20) was flowed through the sample. Resistivity increased by about a factor of 4 as the ethanol mixture replaced the water solution. Nondestructive x-ray imaging of the sample at various stages

Wildenschild, Dorthe

476

Uncovering the Microbial Diversity of the Alberta Oil Sands through Metagenomics: A Stepping Stone for Enhanced Oil Recovery and  

E-Print Network [OSTI]

1 Uncovering the Microbial Diversity of the Alberta Oil Sands through Metagenomics: A Stepping Stone for Enhanced Oil Recovery and Environmental Solutions Writing Team: Julia Foght1 , Robert Holt2 Agency; 3 Department of Biological Sciences, University of Calgary; 4 Department of Geology

Voordouw, Gerrit

477

Measurement of Elastic Modulus of PUNB Bonded Sand as a Function of Temperature J. Thole and C. Beckermann  

E-Print Network [OSTI]

. Beckermann Dept. of Mechanical and Industrial Engineering, University of Iowa, Iowa City, Iowa 52242 Abstract Measurements of the elastic modulus of PUNB bonded silica sand are performed using a three-point bend test from for the elastic modulus at room temperature is obtained when measured under compressive, tensile or bending

Beckermann, Christoph

478

Sandia Technical Report, SAND2007-2670C Submitted to: Joint Statistical Meetings, July 29-Aug.2, 2007  

E-Print Network [OSTI]

Sandia Technical Report, SAND2007-2670C Submitted to: Joint Statistical Meetings, July 29-Aug.2 Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security uncertainty. Guidance from a Department of Energy document which provides guidelines for quantifying margins

479

CROSSWELL SEISMIC REFLECTION IMAGING OF A SHALLOW COBBLE-AND-SAND AQUIFER: AN EXAMPLE FROM THE BOISE HYDROGEOPHYSICAL  

E-Print Network [OSTI]

CROSSWELL SEISMIC REFLECTION IMAGING OF A SHALLOW COBBLE-AND- SAND AQUIFER: AN EXAMPLE FROM Crosswell seismic data contain first-arrival information for velocity inversion and reflec- tions for seismic stratigraphic analysis. Seismic velocity information is useful for directly com- paring to

Barrash, Warren

480

Environmental survey - tar sands in situ processing research program (Vernal, Uintah County, Utah). [Reverse-forward combustion; steam injection  

SciTech Connect (OSTI)

Research will be done on the reverse-forward combustion and steam injection for the in-situ recovery of oil from tar sands. This environmental survey will serve as a guideline for the consideration of environmental consequences of such research. It covers the construction phase, operational phase, description of the environment, potential impacts and mitigations, coordination, and alternatives. (DLC)

Skinner, Q.

1980-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "monazite sand ce" 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

Reservoir characterization of the upper Merecure and lower Oficina Formations sands in the Leona Este Field, Eastern Venezuela Basin  

E-Print Network [OSTI]

data. The hydrocarbon trapping mechanism of each studied stratigraphic interval, traditionally known as the "S5", "TU", "TL", "U1U", "U1L", "U2U", "U2MA", "U2MB" and "U2L" sands, includes two components: ? Stratigraphic component: each stratigraphic...

Flores Millan, Maria Carolina

2012-06-07T23:59:59.000Z

482

DOI-BLM-ID-110-2009-3825-CE | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin:EnergyWisconsin:2003)CrowleyEnergyMasse) JumpConsultation-2009-3825-CE Jump to:

483

XRD, lead equivalent and UV-VIS properties study of Ce and Pr lead silicate glasses  

SciTech Connect (OSTI)

In this work, Cerium (Ce) and Praseodymium (Pr) containing lead silicate glasses were produced with 2 different molar ratios low (0.2 wt%) and high (0.4wt%). These types of glasses can satisfy the characteristics required for radiation shielding glasses and minimize the lead composition in glass. The radiation shielding properties of the synthesized glasses is explained in the form of lead equivalent study. The XRD diffraction and UV-VIS analysis were performed to observe the structural changes of the synthesis glasses at 1.5 Gy gamma radiation exposures.

Alias, Nor Hayati, E-mail: norhayati@nuclearmalaysia.gov.my; Abdullah, Wan Shafie Wan, E-mail: norhayati@nuclearmalaysia.gov.my; Isa, Norriza Mohd, E-mail: norhayati@nuclearmalaysia.gov.my; Isa, Muhammad Jamal Md, E-mail: norhayati@nuclearmalaysia.gov.my; Zali, Nurazila Mat; Abdullah, Nuhaslinda Ee [Malaysian Nuclear Agency, 43000, Bangi, Kajang, Selangor (Malaysia); Muhammad, Azali [Malaysian Society for Non-Destructive Testing (Malaysia)

2014-02-12T23:59:59.000Z

484

Data:46440396-c64b-4541-ad0a-43775ce1671b | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of48d9ff47edf3a87dcc95b No revisione66e17fc7f7 No revisione18fe97c No revision has been approved for775ce1671b

485

Technology assessment: environmental, health, and safety impacts associated with oil recovery from US tar-sand deposits  

SciTech Connect (OSTI)

The tar-sand resources of the US have the potential to yield as much as 36 billion barrels (bbls) of oil. The tar-sand petroleum-extraction technologies now being considered for commercialization in the United States include both surface (above ground) systems and in situ (underground) procedures. The surface systems currently receiving the most attention include: (1) thermal decomposition processes (retorting); (2) suspension methods (solvent extraction); and (3) washing techniques (water separation). Underground bitumen extraction techniques now being field tested are: (1) in situ combustion; and (2) in situ steam-injection procedures. At this time, any commercial tar-sand facility in the US will have to comply with at least 7 major federal regulations in addition to state regulations; building, electrical, and fire codes; and petroleum-industry construction standards. Pollution-control methods needed by tar-sand technologies to comply with regulatory standards and to protect air, land, and water quality will probably be similar to those already proposed for commercial oil-shale systems. The costs of these systems could range from about $1.20 to $2.45 per barrel of oil produced. Estimates of potential pollution-emisson levels affecting land, air, and water were calculated from available data related to current surface and in situ tar-sand field experiments in the US. These data were then extrapolated to determine pollutant levels expected from conceptual commercial surface and in situ facilities producing 20,000 bbl/d. The likelihood-of-occurrence of these impacts was then assessed. Experience from other industries, including information concerning health and ecosystem damage from air pollutants, measurements of ground-water transport of organic pollutants, and the effectiveness of environmental-control technologies was used to make this assessment.

Daniels, J.I.; Anspaugh, L.R.; Ricker, Y.E.

1981-10-13T23:59:59.000Z

486

Probing the Reaction Intermediates for the Water-Gas Shift over Inverse CeOx/Au(111) Catalysts  

SciTech Connect (OSTI)

The water-gas shift (WGS) is an important reaction for the production of molecular H{sub 2} from CO and H{sub 2}O. An inverse CeO{sub x}/Au(1 1 1) catalyst exhibits a very good WGS activity, better than that of copper surfaces or Cu nanoparticles dispersed on a ZnO(0 0 0 {bar 1}) substrate which model current WGS industrial catalysts. In this work we report on intermediates likely to arise during the CO + H{sub 2}O reaction over CeO{sub x}/Au(1 1 1) using soft X-ray photoemission (sXPS) and near-edge X-ray absorption fine structure (NEXAFS). Several potential intermediates including formates (HCOO), carbonates (CO{sub 3}) and carboxylates (HOCO) are considered. Adsorption of HCOOH and CO{sub 2} is used to create both HCOO and CO{sub 3} on the CeO{sub x}/Au(1 1 1) surface, respectively. HCOO appears to have greater stability with desorption temperatures up to 600 K while CO{sub 3} only survives on the surface up to 300 K. On the CeO{sub x}/Au(1 1 1) catalysts, the presence of Ce{sup 3+} leads to the dissociation of H{sub 2}O to give OH groups. We demonstrate experimentally that the OH species are stable on the surface up to 600 K and interact with CO to yield weakly bound intermediates. When there is an abundance of Ce{sup 4+}, the OH concentration is diminished and the likely intermediates are carbonates. As the surface defects are increased and the Ce{sup 3+}/Ce{sup 4+} ratio grows, the OH concentration also grows and both carbonate and formate species are observed on the surface after dosing CO to H{sub 2}O/CeO{sub x}/Au(1 1 1). The addition of ceria nanoparticles to Au(1 1 1) is essential to generate an active WGS catalyst and to increase the production and stability of key reaction intermediates (OH, HCOO and CO{sub 3}).

Rodriguez, J.A.; Senanayake, S.D.; Stacchiola, D.; Evans, J.; Estrella, M.; Barrio-Pliego, L.; Prez, M.; Hrbek, J.

2010-05-04T23:59:59.000Z

487

Probing the Reaction Intermediates for the Watergas Shift over Inverse CeOx / Au(1 1 1) Catalysts  

SciTech Connect (OSTI)

The water-gas shift (WGS) is an important reaction for the production of molecular H{sub 2} from CO and H{sub 2}O. An inverse CeO{sub x}/Au(1 1 1) catalyst exhibits a very good WGS activity, better than that of copper surfaces or Cu nanoparticles dispersed on a ZnO(0 0 0 {bar 1}) substrate which model current WGS industrial catalysts. In this work we report on intermediates likely to arise during the CO + H{sub 2}O reaction over CeO{sub x}/Au(1 1 1) using soft X-ray photoemission (sXPS) and near-edge X-ray absorption fine structure (NEXAFS). Several potential intermediates including formates (HCOO), carbonates (CO{sub 3}) and carboxylates (HOCO) are considered. Adsorption of HCOOH and CO{sub 2} is used to create both HCOO and CO{sub 3} on the CeO{sub x}/Au(1 1 1) surface, respectively. HCOO appears to have greater stability with desorption temperatures up to 600 K while CO{sub 3} only survives on the surface up to 300 K. On the CeO{sub x}/Au(1 1 1) catalysts, the presence of Ce{sup 3+} leads to the dissociation of H{sub 2}O to give OH groups. We demonstrate experimentally that the OH species are stable on the surface up to 600 K and interact with CO to yield weakly bound intermediates. When there is an abundance of Ce{sup 4+}, the OH concentration is diminished and the likely intermediates are carbonates. As the surface defects are increased and the Ce{sup 3+}/Ce{sup 4+} ratio grows, the OH concentration also grows and both carbonate and formate species are observed on the surface after dosing CO to H{sub 2}O/CeO{sub x}/Au(1 1 1). The addition of ceria nanoparticles to Au(1 1 1) is essential to generate an active WGS catalyst and to increase the production and stability of key reaction intermediates (OH, HCOO and CO{sub 3}).

Senanayake, S.; Stacchiola, D; Evans, J; Estrella, M; Barrio, L; Perez, M; Hrbek, J; Rodriguez, J

2010-01-01T23:59:59.000Z

488

X-ray luminescence of CdTe quantum dots in LaF{sub 3}:Ce/CdTe nanocomposites  

SciTech Connect (OSTI)

CdTe quantum dots have intense photoluminescence but exhibit almost no x-ray luminescence. However, intense x-ray luminescence from CdTe quantum dots is observed in LaF{sub 3}:Ce/CdTe nanocomposites. This enhancement in the x-ray luminescence of CdTe quantum dots is attributed to the energy transfer from LaF{sub 3}:Ce to CdTe quantum dots in the nanocomposites. The combination of LaF{sub 3}:Ce nanoparticles and CdTe quantum dots makes LaF{sub 3}:Ce/CdTe nanocomposites promising scintillators for radiation detection.

Hossu, Marius; Liu Zhongxin; Yao Mingzhen; Ma Lun; Chen Wei

2012-01-02T23:59:59.000Z

489

Grant Title: RESEARCH GRANTS FOR PREVENTING VIOLENCE AND VIOLENCE-RELATED INJURY Funding Opportunity Number: RFA-CE-14-006. CFDA Number(s): 93.136.  

E-Print Network [OSTI]

Opportunity Number: RFA-CE-14-006. CFDA Number(s): 93.136. Agency/Department: Centers for Disease Control

Farritor, Shane

490

Nickel deficiency in RENi2-xP2 (RE=La, Ce, Pr). Combined crystallographic and physical property studies  

SciTech Connect (OSTI)

Large single crystals from RENi{sub 2-x}P{sub 2} (RE = La, Ce, Pr) were synthesized from the pure elements using Sn as a metal flux, and their structures were established by X-ray crystallography. The title compounds were confirmed to crystallize in the body-centered tetragonal ThCr{sub 2}Si{sub 2} structure type (space group I4/mmm (No. 139); Pearson's symbol tI10), but with a significant stoichiometry breadth with respect to the transition metal. Systematic synthetic work, coupled with accurate structure refinements indicated strong correlation between the degree of Ni-deficiency and the reaction conditions. For four different PrNi{sub 2-x}P{sub 2} (x {le} 0.5) samples, temperature dependent dc magnetization measurements indicated typical local moment 4f-magnetism and a stable Pr{sup 3+} ground state. Field-dependent heat capacity data confirmed a ferromagnetic order at low temperature, and the variations of T{sub c} with the concentration of Ni defects are discussed. LaNi{sub 2-x}P{sub 2}, as expected was found to be Pauli-like paramagnetic in the studied temperature regime, while the Ce-analog CeNi{sub 2-x}P{sub 2} (x = 0.28(1)) showed the characteristics of a mixed valent Ce{sup 3+}/Ce{sup 4+} system with a possible Kondo temperature on the order of 230 K.

Bauer, Eric D [Los Alamos National Laboratory; Ronning, Filip [Los Alamos National Laboratory; Thompson, Joe D [Los Alamos National Laboratory; Sarrao, John L [Los Alamos National Laboratory; Bobev, S [U. OF DE; Xia, S [U. OF DE

2008-01-01T23:59:59.000Z

491

Ion Beam Radiation Effects in Monazite , X. Deschanels2  

E-Print Network [OSTI]

ions to simulate the consequences of alpha decay. This article describes the effects, Irradiation effects, Hardness, Density, XRD, Raman spectroscopy; Deposited energy PACS: 81.05.Je, 61.82-d, 61-19] actinides, but relatively few papers dealing with compounds incorporating both tri- and tetravalent elements

Boyer, Edmond

492

Reservoir description of a sand-rich submarine fan complex for a steamflood project: upper Miocene Potter sandstone, North Midway Sunset field, California  

SciTech Connect (OSTI)

Nearly 650 m of cores from the upper Miocene Potter sandstone in Mobil's Alberta/Shale property, North Midway Sunset field, California, were examined to determine depositional facies, sand-body geometry, and reservoir quality for a proposed steamflood project. The Potter represents a sand-rich submarine fan complex with braided-channel, meandering-channel, levee, and crevasse-splay facies. The braided-channel facies (gravel and coarse sand) is thick (up to 100 m), sheetlike (> 500 m wide), and highly permeable (10,000 + md). The meandering-channel facies (coarse to medium sand) is up to 20 m thick, over 400 m long, lenticular in geometry, and exhibits an upward decrease in permeability (e.g., 9000 to 500 md) related to grain size that fines upward. The levee facies (in bioturbated sand) is up to 21 m thick, shows variable geometry, and is generally low in permeability (100-1500 md). The crevasse splay (medium sand) is up to 12 m thick, sheetlike (> 300 m wide), and shows moderately high permeability (2000-8000 md). The braided-channel facies was a product of density-modified grain flows, and the remaining three facies were deposited by turbidity currents. Steam flooding of the Potter reservoir should perform extremely well because the entire reservoir is composed of relatively clean sand and the reservoir lacks both horizontal and vertical permeability barriers.

Shanmugam, G.; Clayton, C.A.

1989-03-01T23:59:59.000Z

493

Implementation of the SAM-CE Monte Carlo benchmark analysis capability for validating nuclear data and reactor design codes  

SciTech Connect (OSTI)

The National Nuclear Data Center is continuing its program to improve the nuclear data base used as input for commercial reactor analysis and design. In the most recent phase of this project the Monte Carlo program SAM-CE, developed by the Mathematical Applications Group, Inc. (MAGI), was made operational at BNL. This program was implemented on the BNL-CDC-7600 Computer, and also on the PDP-10 in-house computer. The NNDC made operational and developed techniques for processing ENDF/B-V cross sections for SAM-CE. A limited ENDF/B-V based library was produced. Use of the SAM-CE program in thermal reactor problems was validated using detailed comparisons of results with other Monte Carlo codes such as RECAP, RCP01 and VIM as well as with experimental data.

Beer, M.; Rose, P.

1981-04-01T23:59:59.000Z

494

On the local electronic and atomic structure of Ce{sub 1?x}Pr{sub x}O{sub 2??} epitaxial films on Si  

SciTech Connect (OSTI)

The local electronic and atomic structure of (111)-oriented, single crystalline mixed Ce{sub 1?x}Pr{sub x}O{sub 2??} (x?=?0, 0.1 and 0.6) epitaxial thin films on silicon substrates have been investigated in view of engineering redox properties of complex oxide films. Non-destructive X-ray absorption near edge structure reveals that Pr shows only +3 valence and Ce shows only nominal +4 valence in mixed oxides. Extended x-ray absorption fine structure (EXAFS) studies were performed at K edges of Ce and Pr using a specially designed monochromator system for high energy measurements. They demonstrate that the fluorite lattice of ceria (CeO{sub 2}) is almost not perturbed for x?=?0.1 sample, while higher Pr concentration (x?=?0.6) not only generates a higher disorder level (thus more disordered oxygen) but also causes a significant reduction of CeO interatomic distances. The valence states of the cations were also examined by techniques operating in highly reducing environments: scanning transmission electron microscopy-electron energy loss spectroscopy and X-ray photoemission spectroscopy; in these reducing environments, evidence for the presence of Ce{sup 3+} was clearly found for the higher Pr concentration. Thus, the introduction of Pr{sup 3+} into CeO{sub 2} strongly enhances the oxygen exchange properties of CeO{sub 2}. This improved oxygen mobility properties of CeO{sub 2} are attributed to the lattice disorder induced by Pr mixing in the CeO{sub 2} fluorite lattice, as demonstrated by EXAFS measurements. Thus, a comprehensive picture of the modifications of the atomic and electronic structure of Ce{sub 1?x}Pr{sub x}O{sub 2??} epitaxial films and their relation is obtained.

Niu, Gang, E-mail: gang@ihp-microelectronics.com; Schubert, Markus Andreas; Zoellner, Marvin Hartwig [IHP, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); D'Acapito, Francesco [Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble, c/o European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble (France); Schroeder, Thomas [IHP, Im Technologiepark 25, 15236 Frankfurt (Oder) (Germany); BTU Cottbus-Senftenberg, Konrad-Zuse-Str. 1, 03046 Cottbus (Germany); Boscherini, Federico [Consiglio Nazionale delle Ricerche, Istituto Officina dei Materiali, Operative Group in Grenoble, c/o European Synchrotron Radiation Facility, B.P. 220, 38043 Grenoble (France); Department of Physics and Astronomy, University of Bologna, via le C. Berti Pichat 6/2, 40127 Bologna (Italy)

2014-09-28T23:59:59.000Z

495

456 IEEE TRANSACTIONS ON ROBOTICS, VOL. 24, NO. 2, APRIL 2008 the PA10-6CE utilizing the geometric and flexibility calibration method  

E-Print Network [OSTI]

456 IEEE TRANSACTIONS ON ROBOTICS, VOL. 24, NO. 2, APRIL 2008 the PA10-6CE utilizing the geometric for demanding dynamic ap- plications with the PA10-6CE robot arm. ACKNOWLEDGMENT The authors thank N. Mauntler in robot joints with harmonic drives and torque sensors," Int. J. Robot. Res., vol. 16, no. 2, pp. 214­ 239

496

The University of Florida Dean of Students O ce creates a culture of care for students, their families, faculty and sta by providing exemplary  

E-Print Network [OSTI]

The University of Florida Dean of Students O ce creates a culture of care for students. Develop an inclusive physical environment for Veteran services and resources. Focus energy towards 2012. Complete and implement recommendations from the O ce of Audit & Compliance Review internal audit

Roy, Subrata

497

The effect of Au and Ni doping on the heavy fermion state of the Kondo lattice antiferromagnet CePtZn  

SciTech Connect (OSTI)

We have probed the effect of doping CePtZn with Au and Ni and also investigated in detail the magnetic behavior of the iso-structural CeAuZn. A magnetic ground state is observed in both CePt{sub 0.9}Au{sub 0.1}Zn and CePt{sub 0.9}Ni{sub 0.1}Zn with T{sub N}?=?2.1 and 1.1?K and the coefficient of the linear term of electronic heat capacity ??=?0.34 and 0.9?J/mol K{sup 2}, respectively. The corresponding values for CePtZn are 1.7?K and 0.6?J/mol K{sup 2}. The altered values of T{sub N} and ? show that the electronic correlations in CePtZn are affected by doping with Au and Ni. CeAuZn orders magnetically near 1.7?K and its electrical resistivity shows a normal metallic behavior. Together with a ? of 0.022?J/mol K{sup 2} the data indicate a weak 4f-conduction electron hybridization in CeAuZn characteristic of normal trivalent cerium based systems.

Dhar, S. K., E-mail: sudesh@tifr.res.in [DCMPMS, T.I.F.R., Homi Bhabha Road, Colaba, Mumbai 400005 (India); Aoki, Y.; Suemitsu, B.; Miyazaki, R. [Department of Physics, Tokyo Metropolitan University, Minami-Ohsawa 1-1, Hachioji-Shi, Tokyo (Japan); Provino, A.; Manfrinetti, P. [Departimento Physica Chemicale, Universita di Genova, Via Dodecaneso, 16146 Genova (Italy)

2014-05-07T23:59:59.000Z

498

\\\\Ce_equine3\\public\\Cheryl\\WebDocuments\\OnLine\\CCYouthNomForm.doc NEW HAMPSHIRE 4-H CURRICULUM COMMITTEE  

E-Print Network [OSTI]

\\\\Ce_equine3\\public\\Cheryl\\WebDocuments\\OnLine\\CCYouthNomForm.doc NEW HAMPSHIRE 4-H CURRICULUM, including this year? #12;\\\\Ce_equine3\\public\\Cheryl\\WebDocuments\\OnLine\\CCYouthNomForm.doc 2. List and structure of 4-H (service, training, background, etc.) 4. What special attributes does this youth have

New Hampshire, University of

499

A composite material that consists essentially of a binding medium, such as a mixture of portland ce-  

E-Print Network [OSTI]

that of Type I cement. Aggregate. The aggregate is a granular material, such as sand, gravel, crushed stone to as coarse aggregate, gravel, or stone. By carefully grading the material and selecting an optimal particle size distribution, a maximum packing density can be achieved, where the smaller particles fill the void

Meyer, Christian

500

Size exclusion chromatography-inductively coupled plasma atomic emission spectrographic study of Fe in bitumens derived from tar sands  

SciTech Connect (OSTI)

This paper reports on bitumens extracted from tar sands from various locations (Utah, California, Kentucky, and Alberta) that were examined by size exclusion chromatography with on-line element-specific detection to study the Fe concentration as a function of size. In most cases, the resulting profiles exhibit unimodal distributions at relatively large molecular size with very similar times for maximum elution. specifically, Sunnyside (Utah) and McKittrick (California) tar-sand bitumens exhibited very intense maxima consistent with extremely high bulk Fe contents. Arroyo Grande (California) exhibited an additional maximum at very large molecular size. This size behavior of the Fe appears to correlate with the large molecular size Ni and V components eluted under the same conditions.

Reynolds, J.G. (Lawrence Livermore National Lab., Livermore, CA (US)); Biggs, W.R. (Chevron Research Co., Richmond, CA (US))

1992-01-01T23:59:59.000Z